WO2025139443A1 - Filter element assembly and water purification device - Google Patents

Abstract

A filter element assembly (100) and a water purification device (10). The filter element assembly (100) comprises a filter element seat (110), a filter element body (120) and an end cover (130); the filter element seat (110) is provided with a mounting cavity (111) and a mounting opening (112) communicated with the mounting cavity (111), guide grooves (113) are formed in the inner wall of the mounting opening (112), the guide grooves (113) extend obliquely in the circumferential direction of the mounting opening (112), and the guide grooves (113) are communicated with the mounting opening (112); the filter element body (120) is arranged in the mounting cavity (111), one end of the filter element body (120) is inserted into a water path plate, and the other end of the filter element body (120) is provided with a rotating connecting portion; the end cover (130) is correspondingly arranged at the mounting opening (112), the end cover (130) is rotatably connected to the filter element body (120) by means of the rotating connecting portion, snap-fit protrusions (131) corresponding to the guide grooves (113) are arranged on the outer peripheral wall of the end cover (130), and the snap-fit protrusions (131) can slide along the guide grooves (113), so as to bring part of the filter element body (120) away from the mounting cavity (111) in the axial direction. In this way, the screwing force needing to be applied during disassembly and assembly of the filter element assembly (100) is reduced, thereby saving more labor when a user changes the filter element, and improving the user experience.

Description

Filter element assembly and water purification device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese patent applications with application number 2023236199120, filed on December 28, 2023, entitled “Filter element assembly and water purification device”, application number 202323621492X, filed on December 28, 2023, entitled “Filter element assembly and water purification device”, and application number 2023236186277, filed on December 28, 2023, entitled “Filter element assembly and water purification device”, all of which are incorporated herein by reference.

Technical Field

The present application relates to the field of water purification technology, and in particular to a filter element assembly and a water purification device.

Background Art

Water purification products are water purifiers, which are water treatment equipment that deeply filters and purifies water according to the requirements of water use. Water purifiers can effectively filter out rust, sand, colloids in water, and absorb residual chlorine, odor, discoloration, pesticides and other chemical agents in water. They can effectively remove bacteria, germs, toxins, heavy metals and other impurities in water. They are widely used in both civil and commercial applications.

In the relevant technical field, the connection method between the end cover and the shell or support in the filter element assembly is often to rotate and install by a screw-on core-changing method. Since the filter element is provided with one end of the water inlet and the water outlet, which are axially opposite to the end cover connection end, the filter element assembly needs to overcome the rotational resistance while overcoming the axial pressure difference between the inlet and outlet water when replacing it, which makes it difficult for users to replace the filter element and affects the user experience.

A water purifier is a device that can process water containing impurities and harmful substances to make it pure and drinkable. Its main function is to filter out suspended matter, bacteria, viruses, heavy metals and other harmful substances in the water, while retaining minerals and trace elements in the water that are beneficial to the human body. There are many types of water purifiers. According to their different filtering methods, they can be mainly divided into reverse osmosis water purifiers, ultrafiltration water purifiers, activated carbon water purifiers, ceramic filtration water purifiers, etc. When assembling the water purifier or replacing the filter element, the filter element assembly process is relatively complicated, resulting in a poor core replacement experience.

Summary of the invention

The present application aims to solve at least one of the technical problems existing in the related art. To this end, the present application proposes a filter element assembly, which reduces the screwing force required when disassembling and assembling the filter element assembly, making it easier for users to replace the element and improving the user experience.

To this end, the present application also proposes a filter element assembly, which reduces the installation resistance during assembly of the filter element assembly, making it easier for users to replace the element and improving the user experience.

To this end, the present application also proposes a filter element assembly and a water purification device, which realizes rapid and accurate connection between the filter element and the waterway plate interface by setting limiting ribs and a limiting groove with a bell-shaped mouth.

The application also proposes a water purification device.

A filter element assembly according to the present application includes:

A filter element seat body, the filter element seat body having a mounting cavity and a mounting opening communicating with the mounting cavity, an inner wall of the mounting opening being provided with a lead-out groove, the lead-out groove being arranged to extend obliquely along the circumference of the mounting opening, and the lead-out groove being communicated with the mounting opening;

A filter element body, wherein the filter element body is arranged in the installation cavity, one end of the filter element body is plugged with the waterway plate, and the other end of the filter element body is provided with a rotating connection part;

An end cover is arranged corresponding to the installation port, and the end cover is rotatably connected to the filter element body through the rotating connection portion. A clamping protrusion corresponding to the lead-out groove is provided on the outer peripheral wall of the end cover, and the clamping protrusion can slide along the lead-out groove to axially bring part of the filter element body away from the installation cavity.

In some embodiments, the snap-fit protrusion has an inclined end surface and an abutting protrusion.

In some embodiments, the abutting protrusion is arranged at an end of one side of the inclined end surface close to the guide groove.

In some embodiments, the abutment protrusion abuts against a groove wall of the guide groove.

In some embodiments, the outlet groove includes an outlet wall.

In some embodiments, the guide wall is arranged in a streamlined manner along the circumference of the installation opening.

In some embodiments, the outlet wall includes a first outlet segment and a second outlet segment.

In some embodiments, the curvature of the first lead-out segment is greater than the curvature of the second lead-out segment.

In some embodiments, the central angle corresponding to the arc length of the first lead-out section extending circumferentially along the installation opening is α.

In some embodiments, α is greater than or equal to 10°.

In some embodiments, the inclination of the inclined end surface is greater than the inclination of the outlet wall.

In some embodiments, the end cap is raised toward a side away from the filter element body to form a gripping portion.

In some embodiments, an outer peripheral edge of one end of the holding portion away from the filter element body protrudes to form an undercut.

In some embodiments, a protrusion distance H of the gripping portion along the axial direction of the end cap is greater than or equal to 12 mm.

In some embodiments, the outer periphery of the end cover is provided with a flange portion toward the filter element body.

In some embodiments, the flanged portion is covered on one end of the filter element body where the rotating connection portion is provided.

In some embodiments, the locking protrusion is arranged on the outer wall surface of the flange portion.

The present application also proposes a water purification device, which includes the filter element assembly, the filter element assembly including a filter element seat body, a filter element body and an end cover, the filter element seat body having an installation cavity and an installation port connected to the installation cavity, an inner wall of the installation port is provided with a lead-out groove, the lead-out groove is arranged to extend obliquely along the circumference of the installation port, and the lead-out groove is connected to the installation port; the filter element body is arranged in the installation cavity, one end of the filter element body is plug-connected with a waterway plate, and the other end of the filter element body is provided with a rotating connection part; the end cover is arranged corresponding to the installation port, the end cover is rotatably connected to the filter element body through the rotating connection part, and a clamping protrusion corresponding to the lead-out groove is provided on the outer peripheral wall of the end cover, and the clamping protrusion can slide along the lead-out groove to axially bring part of the filter element body away from the installation cavity.

The above one or more technical solutions in the embodiments of the present application have at least one of the following technical effects:

The present application provides a guide groove on the inner wall of the installation port and a snap-on protrusion on the outer peripheral wall of the end cover. Since the guide groove extends obliquely along the circumference of the installation port, the snap-on protrusion and the guide groove cooperate with each other in a point-to-surface manner so as to be axially removed from the installation cavity. When the user rotates the end cover, the snap-on protrusion can slide along the guide groove extending obliquely in the circumference. In this way, the smoothness and stability of the rotational cooperation between the end cover and the installation port can be enhanced, and the pressure difference force existing after the filter element body and the waterway plate are connected can be better overcome to separate the waterway plate and the filter element body, and part of the filter element body can be axially removed from the installation cavity, which can reduce the screwing force that the user needs to apply when removing the filter element, making it easier for the user to change the element and improving the user experience.

According to another filter element assembly of the present application, the filter element assembly comprises:

A filter element seat body, the filter element seat body having a mounting cavity and a mounting opening communicated with the mounting cavity, and a guide groove is provided on the inner wall of the mounting opening;

A filter element body, wherein the filter element body is arranged in the installation cavity, one end of the filter element body is plugged with the waterway plate, and the other end of the filter element body is provided with a rotating connection part;

An end cover, the end cover is correspondingly arranged at the installation opening, the end cover is rotatably connected to the filter element body through the rotating connection portion, a clamping protrusion corresponding to the guide groove is provided on the outer peripheral wall of the end cover, and the clamping protrusion can slide along the guide groove to lock or unlock the position of the filter element body in the installation cavity;

Wherein, the inclination of the notch end of the guide groove is different from the inclination angle of the introduction end of the clamping protrusion.

In some embodiments, the guide groove includes a first guide surface disposed at the inlet end.

In some embodiments, the first guide surface is inclined along the circumference of the installation opening.

In some embodiments, the engaging protrusion includes a second guide surface for setting an introduction end.

In some embodiments, the second guide surface is inclined along the circumference of the end cover.

In some embodiments, the angle α1 between the first guide surface and the axial direction is different from the angle β1 between the second guide surface and the cross section.

In some embodiments, the guide groove further includes a first abutment surface.

In some embodiments, the first abutment surface is connected to an end of the first guide surface away from the notch.

In some embodiments, the snap-fit protrusion includes a second abutment surface.

In some embodiments, the second abutting surface is connected to a side of the second guide surface away from the introduction end.

In some embodiments, the second abutment surface is extended along the circumference of the end cover.

In some embodiments, the first abutting surface and the second abutting surface are disposed in abutment with each other.

In some embodiments, the angle α1 between the first guide surface and the axial direction is greater than or equal to 30°.

In some embodiments, an angle β1 between the second guide surface and a cross section perpendicular to the axial direction of the end cover is greater than or equal to 30°.

In some embodiments, the bottom wall of the guide groove is inclined.

In some embodiments, the angle between the groove bottom wall and the cross section perpendicular to the axial direction of the filter element seat body is γ1.

In some embodiments, γ1 is greater than or equal to β1.

In some embodiments, the end cap is raised toward a side away from the filter element body to form a gripping portion.

In some embodiments, a protrusion distance H1 of the gripping portion along the axial direction of the end cap is greater than or equal to 12 mm.

In some embodiments, the outer periphery of the end cover is provided with a flange portion toward the filter element body.

In some embodiments, the flanged portion is covered on one end of the filter element body where the rotating connection portion is provided.

In some embodiments, the locking protrusion is arranged on the outer wall surface of the flange portion.

The present application also proposes a water purification device, which includes a shell and the filter element assembly, and the filter element assembly includes a filter element seat body, a filter element body and an end cover, the filter element seat body has an installation cavity and an installation port connected to the installation cavity, and a guide groove is provided on the inner wall of the installation port; the filter element body is arranged in the installation cavity, one end of the filter element body is plugged into the waterway plate, and the other end of the filter element body is provided with a rotating connection part; the end cover is correspondingly arranged at the installation port, and the end cover is rotatably connected to the filter element body through the rotating connection part, and a snap-in protrusion corresponding to the guide groove is provided on the outer peripheral wall of the end cover, and the snap-in protrusion can slide along the guide groove to lock or unlock the position of the filter element body in the installation cavity; wherein the inclination of the notch end of the guide groove is different from the inclination angle of the introduction end of the snap-in protrusion.

The above one or more technical solutions in the embodiments of the present application have at least one of the following technical effects:

The present invention makes the inclination of the notch end of the guide groove different from the inclination angle of the lead-in end of the clamping protrusion, so that when assembling the filter element assembly, the original surface-to-surface contact between the lead-in end of the clamping protrusion and the notch of the guide groove is replaced by the contact between the abutment point and the abutment surface, making it easier for the clamping protrusion to slide along the guide groove, thereby reducing the installation resistance. Due to the special design of the guide groove and the clamping protrusion, the position of the filter element body can be more easily adjusted and locked, so that the user can replace the filter element. It saves effort when using the computer, thereby improving the user experience.

A filter element assembly proposed in the present application comprises:

A filter element body, wherein the outer peripheral wall of the filter element body is provided with limiting ribs;

A filter element mounting seat, wherein the filter element mounting seat has an installation cavity inside, one side of the installation cavity has an opening, the filter element body is suitable for being installed in the installation cavity through the opening, a limiting groove is provided on the inner wall of the installation cavity, the limiting rib is suitable for sliding along the limiting groove, the limiting rib and the limiting groove cooperate to limit the rotation of the filter element body in its circumferential direction, one end of the limiting groove is provided with a bell mouth, and the bell mouth is connected to the opening.

In some embodiments, there are multiple limiting ribs, and the multiple limiting ribs are spaced apart along the circumferential direction of the filter element body.

In some embodiments, the width of the limiting rib is 2mm-5mm.

In some embodiments, the limiting ribs are linear.

In some embodiments, the end of the limiting rib has a guiding slope.

In some embodiments, the filter element body comprises:

A main body, wherein the limiting rib is arranged on the outer peripheral wall of the main body, the main body is arranged in the installation cavity, and the main body is slidable along the length direction of the limiting groove;

The cover body is arranged on the end of the main body, a part of the structure of the cover body is located in the opening, and the cover body is rotatable relative to the main body.

In some embodiments, in the length direction of the limiting rib, the width of the cover body is smaller than the length of the limiting rib.

In some embodiments, a rotating ridge is provided on the cover.

In some embodiments, a rotation groove is provided on the inner peripheral wall of the installation cavity.

In some embodiments, the rotation groove extends along a circumferential direction of the body portion.

In some embodiments, the limiting groove extends along the length direction of the main body.

In some embodiments, with the cooperation between the rotating convex strip and the rotating groove, and the cooperation between the limiting groove and the limiting rib, the cover body rotates relative to the main body, and the cover body and the main body move along the direction of the limiting groove.

In some embodiments, the opening of the rotation groove is connected to the bell mouth.

The present application also provides a water purification device, comprising:

A filter element assembly, wherein the filter element assembly is the filter element assembly as described above;

The filter element assembly is arranged in the casing, the casing and the filter element mounting seat of the filter element assembly are an integrally formed part, and the opening of the filter element assembly is arranged on the casing.

According to the filter element assembly and water purification device of the embodiments of the present application, the movement range of the limiting rib is limited by utilizing the limiting effect of the limiting groove, thereby limiting the movement range of the filter element body; further, by providing a bell mouth at one end of the limiting groove, not only can the guiding effect of the bell mouth be utilized to guide the limiting rib to fit into the limiting groove, but the bell mouth also has the advantages of a wide mouth for entry and a narrow mouth for exit, thereby facilitating the limiting rib to fit into the limiting groove.

Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic structural diagram of an embodiment of a water purification device provided in an embodiment of the present application;

FIG2 is a partial cross-sectional view of the filter element assembly during assembly in an embodiment of the present application;

Fig. 3 is an enlarged view of point A in Fig. 2;

FIG4 is a schematic structural diagram of the housing in FIG1 ;

FIG5 is a partial enlarged view of the installation opening in FIG1;

FIG6 is a schematic diagram of the assembly of the filter element body and the end cap;

FIG7 is a schematic diagram of the assembly of the filter element body and the end cap in FIG6 from another perspective;

FIG8 is a schematic structural diagram of an embodiment of a water purification device provided in an embodiment of the present application;

FIG9 is a partial cross-sectional view of the filter element assembly during assembly in an embodiment of the present application;

FIG10 is an enlarged view of point A1 in FIG9 ;

FIG11 is a cross-sectional view of the housing in FIG8 ;

FIG12 is a schematic diagram of the assembly of the filter element body and the end cap;

FIG13 is a schematic diagram of a partial structure of a water purification device according to an embodiment of the present application;

FIG14 is a schematic diagram of a partial structure of FIG13;

FIG15 is a cross-sectional view of a water purification device according to an embodiment of the present application;

FIG16 is a schematic diagram of a partial structure of FIG15;

FIG. 17 is a schematic structural diagram of a filter element body of a water purification device according to an embodiment of the present application; and

FIG. 18 is a schematic structural diagram of a filter element body of a water purification device according to an embodiment of the present application.

Reference numerals:
10. Water purification device;
100. Filter element assembly;
110, filter element seat body; 111, installation cavity; 112, installation port; 113, outlet groove; 113a,
Lead-out wall; 113b, first lead-out section; 113c, second lead-out section;
120. Filter element body;
130, end cover; 131, snap-fit protrusion; 131a, inclined end surface; 131b, abutment protrusion; 132,
Grip portion; 132a, undercut; 133, flange portion;
200. Shell.
1-10. Water purification device;
1-100, filter element assembly;
1-110, filter element seat body; 1-111, installation cavity; 1-112, installation opening; 1-113, guide groove;
1-113a, first guide surface; 1-113b, first abutment surface; 1-113c, groove bottom wall;
1-120, filter element body;
1-130, end cover; 1-131, snap-fit protrusion; 1-131a, second guide surface; 1-131b, second abutting surface; 1-132, gripping portion; 1-133, flange portion;
1-200, housing.
2-1000, water purification device; 2-200, housing; 2-100, filter element assembly;
2-110, filter element body; 2-111, limiting rib; 2-112, guiding inclined surface; 2-113, body part;
2-114, cover body; 2-115, rotating convex strip; 2-116, water outlet pipe; 2-117, handle;
2-120, filter element mounting seat; 2-121, mounting cavity; 2-122, opening; 2-123, limiting groove;
2-124, bell mouth; 2-125, rotating groove.

DETAILED DESCRIPTION

The following is a further detailed description of the implementation of the present application in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but cannot be used to limit the scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description. The present invention is not intended to describe, but rather to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

Water purification products are water purifiers, which are water treatment equipment that deeply filters and purifies water according to the requirements of water use. Water purifiers can effectively filter out rust, sand, colloids in water, and absorb residual chlorine, odor, discoloration, pesticides and other chemical agents in water. They can effectively remove bacteria, germs, toxins, heavy metals and other impurities in water. They are widely used in both civil and commercial applications.

In the relevant technical field, the connection method between the end cover and the shell or support in the filter element assembly is often to rotate and install by a screw-on core-changing method. Since the filter element is provided with one end of the water inlet and the water outlet, which are axially opposite to the end cover connection end, the filter element assembly needs to overcome the rotational resistance while overcoming the axial pressure difference between the inlet and outlet water when replacing it, which makes it difficult for users to replace the filter element and affects the user experience.

The present application provides a filter element assembly and a water purification device.

In the embodiment of the present application, as shown in FIGS. 1 to 3, the filter element assembly 100 includes a filter element seat body 110, a filter element body 120 and an end cap 130. The filter element seat body 110 has a mounting cavity 111 and a mounting port 112 connected to the mounting cavity 111. The inner wall of the mounting port 112 is provided with a guide groove 113, which extends along the circumference of the mounting port 112 and is inclined, and the guide groove 113 is connected to the mounting port 112; the filter element body 120 is arranged in the mounting cavity 111. 11, one end of the filter element body 120 is plugged into the waterway plate, and the other end of the filter element body 120 is provided with a rotating connection part; the end cover 130 is correspondingly arranged at the installation port 112, and the end cover 130 is rotatably connected to the filter element body 120 through the rotating connection part, and the outer peripheral wall of the end cover 130 is provided with a clamping protrusion 131 corresponding to the outlet groove 113, and the clamping protrusion 131 can slide along the outlet groove 113 to bring part of the filter element body 120 away from the installation cavity 111 along the axial direction.

The filter element seat body 110 can be a mounting support that is set separately from the housing 200 or a setting that is formed integrally with the housing 200. The mounting seat body is formed with a mounting cavity 111 and a mounting port 112 that communicates with the mounting cavity 111. The mounting cavity 111 provides a stable mounting space for the filter element body 120. The mounting port 112 allows the filter element body 120 to be easily inserted and removed. It also ensures that water or other fluids can flow The inner wall of the installation opening 112 is provided with a plurality of axially symmetrical guide grooves, which provide directional guidance so that the clamping protrusion 131 on the end cover 130 can accurately slide into the guide groove to ensure the correct installation position of the filter element body 120.

The filter element body 120 is arranged in the installation cavity 111, and one end of the filter element body 120 is plugged with the waterway plate, which facilitates the installation between the waterway plate and the filter element body 120 and simplifies the structural design of the waterway plate, reducing production costs. The other end of the filter element body 120 is provided with a rotating connection portion, so that the end cover 130 and the filter element body 120 can be rotatably connected. In this way, the filter element body 120 and the waterway plate can be limited in the axial direction by the end cover 130, so that the filter element body 120 does not need to rotate during the fixing process, reducing the rotating structure set on the waterway plate, and further simplifying the structure of the waterway plate. It is also convenient for users to operate.

The end cap 130 is correspondingly arranged at the installation opening 112, and the end cap 130 is rotatably connected with the filter element body 120 through a rotating connection portion to ensure that the end cap 130 can tightly cover the installation opening 112. When the filter element assembly 100 is installed in the waterway system, the end cap 130 can tightly fix the filter element body 120 in the installation cavity 111 of the filter element seat body 110. The filter element body 120 can be prevented from rotating or moving during operation, thereby ensuring the normal operation of the filter element assembly 100. At the same time, when the filter element assembly 100 needs to be replaced, the end cap 130 is rotated to make the clamping protrusion 131 slide along the outlet groove 113, thereby driving the filter element body 120 to move along the axis toward the installation opening 112, and the clamping protrusion 131 slides with the outlet groove 113, so that the pressure difference force generated between the filter element body 120 and the waterway plate can be better overcome, so that the filter element body 120 can be removed from the installation cavity 111 more labor-saving.

The present application provides a guide groove 113 on the inner wall of the installation port 112 and a clamping protrusion 131 on the outer peripheral wall of the end cover 130. Since the guide groove 113 extends obliquely along the circumference of the installation port 112, the clamping protrusion 131 and the guide groove 113 cooperate with each other in a point-to-surface manner so as to be axially removed from the installation cavity 111. When the user rotates the end cover 130, the clamping protrusion 131 can slide along the guide groove 113 extending obliquely in the circumference. In this way, the smoothness and stability of the rotational cooperation between the end cover 130 and the installation port 112 can be enhanced, and the pressure difference force existing after the filter element body 120 and the waterway plate are connected can be better overcome to separate the waterway plate and the filter element body 120, and part of the filter element body 120 can be axially removed from the installation cavity 111, which can reduce the screwing force that the user needs to apply when removing the filter element, making it easier for the user to change the element and improving the user experience.

Referring to FIGS. 2 to 6 , in some embodiments, the clamping protrusion 131 has an inclined end surface 131a and an abutting protrusion 131b, the abutting protrusion 131b is arranged at one end of the inclined end surface 131a close to the outlet groove 113, and the abutting protrusion 131b abuts against the groove wall of the outlet groove 113. It can be understood that in this embodiment, the abutting protrusion 131b is a rounded protrusion structure, which can slide and abut against the groove wall of the outlet groove 113, thereby reducing the contact area between the clamping protrusion 131 and the outlet groove 113 and reducing the friction resistance. This can reduce the rotation force required by the user when disassembling the filter element assembly 100, thereby improving the user's convenience.

2 to 4, in some embodiments, the lead-out groove 113 includes a lead-out wall 113a, which is arranged in a streamlined manner along the circumference of the mounting opening 112, and includes a first lead-out section 113b and a second lead-out section 113c, and the curvature of the first lead-out section 113b is greater than that of the second lead-out section 113c. It can be understood that the streamlined lead-out wall 113a can improve the smoothness of the rotational cooperation between the clamping protrusion 131 and the lead-out groove 113, so that the clamping protrusion 131 passes through the lead-out groove 113 more smoothly. Since it is necessary to overcome the pressure difference between the waterway plate and the filter body 120 in the initial stage of disassembling the filter body 120, the first lead-out section 113b is set as a curved surface with a larger curvature in this embodiment, so that when the clamping protrusion 131 slides in the first lead-out section 113b, the displacement distance of the filter body 120 along the axis is increased, and the pressure difference is better overcome, and the curvature of the second lead-out section 113c relative to the first lead-out section 113b tends to be gentle, so that the clamping protrusion 131 can gradually slide out of the lead-out groove 113, and the end cover 130 can be led out of the installation port 112. In this way, while improving the assembly efficiency of the filter element assembly 100, the risk of damage caused by improper operation or excessive force can also be reduced.

Specifically, referring to FIG. 4 and FIG. 5 , in some embodiments, the arc length of the first lead-out section 113 b extending circumferentially along the mounting opening 112 corresponds to a central angle α, wherein α is greater than or equal to 10°. It can be understood that the size of the central angle corresponding to the arc length of the first lead-out section 113b extending circumferentially along the installation port 112 is closely related to the curvature of the first lead-out section 113b and the length of the plug-in column between the interface of the filter element body 120 and the waterway plate. The longer the length of the plug-in column, the greater the distance that the filter element body 120 needs to be axially displaced, and the larger the central angle α corresponding to the first lead-out section 113b, the greater the axial distance when the clamping protrusion 131 slides in the first lead-out section 113b. Therefore, the size of the central angle corresponding to the arc length of the first lead-out section 113b extending circumferentially along the installation port 112 can be set according to the length of the plug-in column between the interface of the filter element body 120 and the waterway plate. The longer the length of the plug-in column, the larger the central angle corresponding to the arc length of the first lead-out section 113b extending circumferentially along the installation port 112. In this way, the matching ejection distance between the clamping boss and the lead-out groove 113 can be increased by increasing the central angle of the first lead-out section 113b, thereby reducing the rotational force required to be applied, allowing the user to perform the core replacement operation more labor-saving.

3 , in some embodiments, the inclination of the inclined end face 131a is greater than the inclination of the outlet wall 113a. It is understandable that the inclination of the inclined end face 131a is greater than the inclination of the outlet wall 113a, so that the inclined end face 131a avoids the outlet wall 113a, so that the clamping protrusion 131 is only slidably abutted with the outlet wall 113a through the abutting protrusion 131b, and the friction and resistance during the sliding process are reduced. At the same time, the structural strength of the abutting protrusion can also be enhanced.

Referring to Fig. 2, Fig. 6 and Fig. 7, in some embodiments, the end cap 130 is raised toward the side away from the filter element body 120 to form a gripping portion 132. It can be understood that in this embodiment, a portion of the end cap 130 protrudes in the direction away from the filter element body 120 to form a gripping shape, so that the operator can easily hold the end cap 130 and operate it. The end cap 130 is raised on the side away from the filter element body 120 to form a gripping portion 132, so that the operator who replaces or assembles can provide a handle for holding. The shape of the gripping portion 132 can be a shape suitable for the size of human hands, such as a circle, a rectangle or a semicircle, so that the operator can easily hold and operate it.

Referring to FIG. 7 , in some embodiments, the outer peripheral edge of the gripping portion 132 away from the filter element body 120 is protruded to form an undercut 132a. It can be understood that the undercut 132a structure can make it easier for the user to hold the filter element, especially when the gripping portion 132 is protruding, the user can grasp the filter element more conveniently, thereby making it easier to install, replace or handle the filter element. And by designing the undercut 132a structure on the gripping portion 132, the convenience of the user in operating the filter element can be improved. Whether it is installing the filter element into the equipment or replacing the filter element, the undercut 132a structure can make it easier and more stable for the user to hold the filter element. Thereby improving the user-friendliness of the product, the user will feel more comfortable and convenient when using the filter element, thereby improving the overall user experience.

Specifically, the ridge distance of the grip portion 132 along the axial direction of the end cap 130 is greater than or equal to 12 mm. It is understandable that a larger ridge distance of the grip portion 132 can provide a better handle, allowing the user to better control and operate the filter element. A larger ridge distance can provide better grip and comfort. Specifically, the ridge distance can be selected according to the size of the filter element or the setting requirements, and is not specifically limited here.

6, in some embodiments, the outer periphery of the end cap 130 is provided with a flange portion 133 toward the filter element body 120, the flange portion 133 is provided on one end of the filter element body 120 provided with a rotating connection portion, and the clamping protrusion 131 is provided on the outer wall surface of the flange portion 133. It can be understood that, by providing the flange portion 133, the end cap 130 can cover one end of the filter element body 120 and provide an embedded space to accommodate the rotating connection portion of the filter element body 120. By combining the rotating connection portion and the end cap 130, the end cap 130 can be firmly fixed on the filter element body 120. At the same time, the flange portion 133 can also provide a position for the clamping protrusion 131.

The present application also provides a water purification device 10, which includes a housing 200 and a filter element. Component 100, the specific structure of the filter element component 100 refers to the above embodiment. Since the water purification device 10 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

The application also provides a filter element assembly and a water purification device.

In the embodiment of the present application, as shown in Figures 8 to 10, the filter element assembly 1-100 includes a filter element seat body 1-110, a filter element body 1-120 and an end cover 1-130, the filter element seat body 1-110 has an installation cavity 1-111 and an installation port 1-112 connected to the installation cavity 1-111, and a plurality of axially symmetrical guide grooves 1-113 are provided on the inner wall of the installation port 1-112; the filter element body 1-120 is arranged in the installation cavity 1-111, one end of the filter element body 1-120 is plugged into the waterway plate, and the other end of the filter element body 1-120 is plugged into the waterway plate. A rotating connection portion is provided; the end cover 1-130 is correspondingly arranged at the installation port 1-112, and the end cover 1-130 is rotatably connected to the filter element body 1-120 through the rotating connection portion, and a snap-in protrusion 1-131 corresponding to the guide groove 1-113 is provided on the outer peripheral wall of the end cover 1-130, and the snap-in protrusion 1-131 can slide along the guide groove 1-113 to lock or unlock the position of the filter element body 1-120 in the installation cavity 1-111; wherein, the inclination of the notch end of the guide groove 1-113 is different from the inclination angle of the introduction end of the snap-in protrusion 1-131.

The filter element seat body 1-110 can be a mounting support that is separately provided from the housing 1-200 or can be formed integrally with the housing 1-200. A mounting cavity 1-111 and a mounting port 1-112 connected to the mounting cavity 1-111 are formed on the mounting seat body. The mounting cavity 1-111 provides a stable mounting space for the filter element body 1-120. The mounting port 1-112 allows the filter element body 1-120 to be easily inserted and removed. It also ensures that water or other fluids can flow into and pass through the filter element body 1-120. A plurality of axially symmetrical guide grooves 1-113 are provided on the inner wall of the mounting port 1-112. The guide grooves 1-113 provide directional guidance so that the snap-in protrusions 1-131 on the end cover 1-130 can accurately slide into the guide grooves 1-113, ensuring the correct installation position of the filter element body 1-120.

The filter element body 1-120 is arranged in the installation cavity 1-111, and one end of the filter element body 1-120 is plugged with the waterway plate, which facilitates the installation between the waterway plate and the filter element body 1-120 and simplifies the structural design of the waterway plate, thereby reducing production costs. A rotating connection portion is provided at the other end of the filter element body 1-120, thereby allowing the end cover 1-130 to be rotatably connected to the filter element body 1-120. In this way, the filter element body 1-120 and the waterway plate can be limited in the axial direction by the end cover 1-130, so that the filter element body 1-120 does not need to rotate during the fixing process, reducing the rotating structure provided on the waterway plate, and further simplifying the structure of the waterway plate. It is also convenient for users to operate.

The end cover 1-130 is correspondingly arranged at the installation opening 1-112. The end cover 1-130 is rotatably connected to the filter element body 1-120 through a rotating connection portion to ensure that the end cover 1-130 can tightly cover the installation opening 1-112, and the filter element body 1-120 is separated from the waterway plate. A snap-on protrusion 1-131 corresponding to the guide groove 1-113 is arranged on the outer peripheral wall of the end cover 1-130. The snap-on protrusion 1-131 can slide along the guide groove 1-113. When the end cover 1-130 is rotated to the correct position, the snap-on protrusion 1-131 will slide into the guide groove 1-113, thereby locking the end cover 1-130 in the correct position. To ensure the stability and safety of the end cover 1-130. The inclination of the slot end of the guide groove 1-113 is different from the inclination angle of the introduction end of the snap-in protrusion 1-131. Therefore, when the snap-in protrusion 1-131 slides into the guide groove 1-113, the inclination angle of its introduction end is different from the inclination of the guide groove 1-113, which makes the sliding process smoother and reduces the installation resistance.

The present application makes the inclination of the notch end of the guide groove 1-113 and the inclination angle of the introduction end of the clamping protrusion 1-131 different, so that when the filter element assembly 1-100 is assembled, the original surface-to-surface contact between the introduction end of the clamping protrusion 1-131 and the notch of the guide groove 1-113 is replaced by the contact between the abutment point and the abutment surface, so that the clamping protrusion 1-131 can slide along the guide groove 1-113 more easily, thereby reducing the installation resistance. Due to the special design of the guide groove 1-113 and the clamping protrusion 1-131, the position of the filter element body 1-120 can be more easily adjusted and locked, so that the user can save more effort when replacing the filter element, thereby improving the user's experience.

10 to 12, in some embodiments, the guide groove 1-113 includes a The first guide surface 1-113a is provided at an angle along the circumference of the installation port 1-112, the clamping protrusion 1-131 includes a second guide surface 1-131a provided at an introduction end, the second guide surface 1-131a is provided at an angle along the circumference of the end cover 1-130, and the angle α1 between the first guide surface 1-113a and the axial direction is different from the angle β1 between the second guide surface 1-131a and the cross section. It can be understood that in this embodiment, the inlet end of the guide groove 1-113 and the introduction end of the clamping protrusion 1-131 are correspondingly provided with the first guide surface 1-113a and the second guide surface 1-131a with different inclinations, and the inclination of the first guide surface 1-113a can be greater than the inclination of the second guide surface 1-131a, or the inclination of the first guide surface 1-113a is less than the inclination of the second guide surface 1-131a. In this way, by setting the inclination of one guide surface to be larger and the inclination of the other guide surface to be smaller, the surface-to-surface abutment between the first guide surface 1-113a and the second guide surface 1-131a can be prevented, and a sliding fit between points and surfaces is achieved instead, thereby effectively reducing friction, reducing resistance during connection, and improving the smoothness of the connection.

According to Figures 11 and 12, in some embodiments, the guide groove 1-113 also includes a first abutment surface 1-113b, which is connected to the end of the first guide surface 1-113a away from the groove, and the snap-in protrusion 1-131 includes a second abutment surface 1-131b, which is connected to the side of the second guide surface 1-131a away from the introduction end, and the second abutment surface 1-131b is extended along the circumference of the end cover 1-130, and the first abutment surface 1-113b and the second abutment surface 1-131b are abutted against each other. It can be understood that during the use of the filter element body 1-120, since the water path is arranged at the end where the water path plate is plugged in, the filter element body 1-120 will give the end cover 1-130 an axial force away from the end of the water path plate. In order to improve the axial abutment force between the end cover 1-130 and the filter element seat body 1-110, the present embodiment provides a first abutment surface 1-113b at the end of the first guide surface 1-113a facing the bottom of the groove and a second abutment surface 1-131b is provided on the snap-in protrusion 1-131. When the snap-in protrusion 1-131 is locked with the guide groove 1-113, the abutment cooperation between the first abutment surface 1-113b and the second abutment surface 1-131b provides an axial abutment force for the end cover 1-130, thereby fixing the filter element body 1-120 in the installation cavity 1-111, thereby improving the connection stability and reliability of the filter element assembly 1-100.

Referring to Figure 11, in some embodiments, the angle α1 between the first guide surface 1-113a and the axial direction is greater than or equal to 30°. It can be understood that the size of the angle α1 between the first guide surface 1-113a and the axial direction in the present application will affect the thickness of the groove wall of the corresponding guide groove 1-113. The smaller the angle α1 between the first guide surface 1-113a and the axial direction, the smaller the thickness of the groove wall corresponding to the first guide surface 1-113a. The smaller the wall thickness will lead to weakened structural strength, which is not conducive to repeated installation with the filter element assembly 1-100, and cannot ensure the stability and reliability of the connection. Therefore, in this embodiment, the angle α1 between the first guide surface 1-113a and the axial direction is limited to be greater than or equal to 30° to ensure the wall thickness of the groove wall corresponding to the first guide surface 1-113a and the structural strength of the guide groove 1-113.

According to FIG. 12 , in some embodiments, the angle β1 between the second guide surface 1-131a and the cross section perpendicular to the axial direction of the end cover 1-130 is greater than or equal to 30°. It can be understood that the size of the angle β1 between the second guide surface 1-131a and the cross section in the present application will also affect the axial thickness of the corresponding snap-in protrusion 1-131. The smaller the angle β1 between the second guide surface 1-131a and the cross section, the smaller the axial thickness corresponding to the second guide surface 1-131a. The smaller the wall thickness, the weaker the structural strength will be, which is not conducive to repeated installation with the filter element assembly 1-100, and the stability and reliability of the connection cannot be guaranteed. Therefore, in this embodiment, the angle β1 between the second guide surface 1-131a and the cross section is limited to be greater than or equal to 30° to ensure the axial thickness of the snap-in protrusion 1-131 corresponding to the second guide surface 1-131a and the structural strength of the snap-in protrusion 1-131.

Referring to FIG. 11 and FIG. 12, in some embodiments, the bottom wall 1-113c of the guide groove 1-113 is inclined, and the angle between the bottom wall 1-113c and the cross section perpendicular to the axial direction of the filter element seat body 120 is γ1, wherein γ1 is greater than or equal to β1. It can be understood that when the snap-fit protrusion 1-131 slides into the bottom of the guide groove 1-113, the locking between the end cover 1-130 and the mounting opening 1-112 is completed. In this embodiment, the bottom wall 1-113c of the guide groove 1-113 is set to an angle of inclination that is compatible with the second guide surface 1-131a corresponding to the clamping protrusion 1-131 after being clamped and fixed, so that the guide groove 1-113 can be clamped with the clamping protrusion 1-131. In other embodiments, the bottom wall 1-113c can also be set to an inclination greater than the inclination of the second guide surface 1-131a, thereby improving the matching degree of the guide groove 1-113 to the clamping protrusions 1-131 with different inclinations and increasing the applicability of the guide groove 1-113.

9 and 11, in some embodiments, the end cap 1-130 is raised toward the side away from the filter element body 1-120 to form a gripping portion 1-132. It is understandable that in this embodiment, a portion of the end cap 1-130 protrudes in a direction away from the filter element body 1-120 to form a gripping shape, so that the operator can easily hold the end cap 1-130 and operate it. The end cap 1-130 is raised toward the side away from the filter element body 1-120 to form a gripping portion 1-132, so that the operator who replaces or assembles can provide a handle for holding. The shape of the gripping portion 1-132 can be a shape suitable for the size of human hands, such as a circle, rectangle or semicircle, so that the operator can easily hold and operate it.

Specifically, the raised distance H1 of the grip portion 1-132 along the axial direction of the end cap 1-130 is greater than or equal to 12 mm. It is understandable that a larger raised distance of the grip portion 1-132 can provide a better handle, allowing the user to better control and operate the filter element. A larger raised distance can provide better grip and comfort. The specific raised distance can be selected according to the size of the filter element or the setting requirements, and is not specifically limited here.

Referring to Fig. 12, in some embodiments, the outer periphery of the end cap 1-130 is provided with a flange portion 1-133 toward the filter element body 1-120, the flange portion 1-133 is covered on one end of the filter element body 1-120 provided with a rotating connection portion, and the snap-in protrusion 1-131 is provided on the outer wall surface of the flange portion 1-133. It can be understood that by providing the flange portion 1-133, the end cap 1-130 can cover one end of the filter element body 1-120 and provide an embedded space to accommodate the rotating connection portion of the filter element body 1-120. By combining the rotating connection portion and the end cap 1-130, the end cap 1-130 can be firmly fixed on the filter element body 1-120. At the same time, the flange portion 1-133 can also provide a position for the provision of the snap-in protrusion 1-131.

The present application also proposes a water purification device 1-10, which includes a housing 1-200 and a filter element assembly 1-100. The specific structure of the filter element assembly 1-100 refers to the above-mentioned embodiment. Since the water purification device 1-10 adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

The following will continue to describe the filter element assembly 2-100 and the water purification device 2-1000 according to the embodiment of the present application with reference to the accompanying drawings. It should be noted that the water purification device 2-1000 can be a water purifier, and the filter element assembly 2-100 is arranged in the water purifier for filtering water. A water purifier is a device that can process a water source containing impurities and harmful substances to make it pure and drinkable. Its main function is to filter out harmful substances such as suspended matter, bacteria, viruses, heavy metals, etc. in the water, while retaining minerals and trace elements in the water that are beneficial to the human body. There are many types of water purifiers. According to their different filtering methods, they can be mainly divided into reverse osmosis water purifiers, ultrafiltration water purifiers, activated carbon water purifiers, ceramic filtration water purifiers, etc. In general, a water purifier is an important equipment that can effectively improve water quality and ensure the safety of people's drinking water.

As shown in FIG. 13 and FIG. 14 , in some embodiments, the filter element assembly 2-100 includes: a filter element body 2-110 and a filter element mounting seat 2-120.

Specifically, the filter element body 2-110 has a filtering function, and a water outlet pipe 2-116 is provided on the filter element body 2-110. The water entering the filter element body 2-110, the waste water generated after filtering, and the pure water can all flow out through the corresponding water outlet pipe 2-116. The water outlet pipe 2-116 is suitable for connecting and communicating with the waterway plate. The waterway plate can be provided with a raw water channel, a waste water channel, and a pure water channel. The water outlet pipe 2-116 on the filter element body 2-110 can be one or more, and each water outlet pipe 2-116 is connected to the waterway plate. The corresponding waterways are connected and communicated.

As shown in Figures 14 and 15, the filter element mounting seat 2-120 has an installation cavity 2-121 inside, and one side of the installation cavity 2-121 has an opening 2-122, and the filter element body 2-110 is suitable for being installed in the installation cavity 2-121 through the opening 2-122. In this way, it is convenient to install the filter element body 2-110 on the filter element mounting seat 2-120. The outer peripheral wall of the filter element body 2-110 is provided with a limiting rib 2-111, and the inner wall of the installation cavity 2-121 is provided with a limiting groove 2-123, and the limiting rib 2-111 is suitable for sliding along the limiting groove 2-123. The cooperation between the limiting rib 2-111 and the limiting groove 2-123 is used to limit the rotation of the filter element body 2-110 in its circumferential direction.

As shown in Figures 15 and 16, the limiting function of the limiting groove 2-123 can be used to limit the movement range of the limiting rib 2-111, and then the movement range of the filter element body 2-110 can be limited. Combined with Figure 14, in order to facilitate the limiting rib 2-111 to fit into the limiting groove 2-123, a bell mouth 2-124 is provided at one end of the limiting groove 2-123, and the bell mouth 2-124 is connected to the opening 2-122. It should be noted that, on the one hand, the bell mouth 2-124 has a guiding function, so that the limiting rib 2-111 can be guided into the limiting groove 2-123; on the other hand, the bell mouth 2-124 has the advantages of wide mouth in and narrow mouth out, so that it is convenient for the limiting rib 2-111 to fit into the limiting groove 2-123.

According to the filter element assembly 2-100 of the embodiment of the present application, the moving range of the limiting rib 2-111 is limited by utilizing the limiting effect of the limiting groove 2-123, thereby limiting the movement range of the filter element body 2-110; further, by providing a bell mouth 2-124 at one end of the limiting groove 2-123, not only can the guiding effect of the bell mouth 2-124 be utilized to guide the limiting rib 2-111 to fit into the limiting groove 2-123, but the bell mouth 2-124 also has the advantages of a wide mouth for entry and a narrow mouth for exit, thereby facilitating the limiting rib 2-111 to fit into the limiting groove 2-123.

According to some embodiments of the present application, there are multiple limiting ribs 2-111, and the multiple limiting ribs 2-111 are spaced apart along the circumferential direction of the filter element body 2-110. In this way, the stability of the cooperation between the filter element body 2-110 and the filter element mounting seat 2-120 can be improved, and the filter element body 2-110 can be effectively prevented from rotating relative to the filter element mounting seat 2-120. In addition, when one of the multiple limiting ribs 2-111 is damaged, the other limiting ribs 2-111 can also play a limiting role, thereby improving the stability and safety of the cooperation between the filter element body 2-110 and the filter element mounting seat 2-120. Correspondingly, when there are multiple limiting ribs 2-111, the filter element mounting seat 2-120 is provided with multiple limiting grooves 2-123, and the multiple limiting grooves 2-123 are arranged in a one-to-one correspondence with the multiple limiting ribs 2-111.

According to some embodiments of the present application, as shown in FIG18, the width of the limiting rib 2-111 is 2mm-5mm. In this way, the structural strength of the limiting rib 2-111 can be enhanced, the matching stability between the limiting rib 2-111 and the limiting groove 2-123 can be improved, and the filter element body 2-110 can be prevented from rotating relative to the filter element mounting seat 2-120. As shown in FIG17 and FIG18, according to some embodiments of the present application, the limiting rib 2-111 is linear. It can be understood that the limiting rib 2-111 extends along a straight line, so that the limiting rib 2-111 can be smoothly matched into the limiting groove 2-123, thereby improving the matching convenience between the filter element body 2-110 and the filter element mounting seat 2-120. In addition, the linear limiting rib 2-111 is simple and intuitive in design, the processing cost is relatively low, and it is easy to process and install.

According to some embodiments of the present application, as shown in FIG. 18 , the end of the limiting rib 2-111 has a guiding slope 2-112. The guiding slope 2-112 has a guiding function, which can guide the filter element body 2-110 into the limiting groove 2-123. For example, when installing the filter element body 2-110 on the filter element mounting seat 2-120, the filter element body 2-110 can be first inserted into the opening 2-122 of the mounting cavity 2-121, and then the guiding slope 2-112 on the limiting rib 2-111 is used to slide into the bell mouth 2-124. Under the guiding effect of the guiding slope 2-112 and the bell mouth 2-124, the limiting rib 2-111 slides into the limiting groove 2-123, and the limiting rib 2-111 slides along the limiting groove 2-123, and the filter element body 2-110 is moved to a predetermined position. Thus, under the guidance of the guide bevel 2-112 and the bell mouth 2-124, the filter element body 2-110 can be smoothly installed to the predetermined position. In addition, it should be noted that the inclined bevel on the guide bevel 2-112 not only facilitates demoulding, but also effectively improves stress concentration, prevents fatigue damage to the limiting rib 2-111, and effectively prolongs the service life of the limiting rib 2-111. Use life.

In combination with FIG. 17 and FIG. 18 , according to some embodiments of the present application, the filter element body 2-110 further includes: a main body 2-113 and a cover 2-114. Specifically, the limiting rib 2-111 is disposed on the outer peripheral wall of the main body 2-113, the main body 2-113 is disposed in the mounting cavity 2-121, and the main body 2-113 is slidable along the length direction of the limiting groove 2-123. The cover 2-114 is disposed on the end of the main body 2-113, and part of the structure of the cover 2-114 is located in the opening 2-122, and the cover 2-114 is rotatable relative to the main body 2-113.

It can be understood that in the axial direction of the main body 2-113 or in the direction in which the main body 2-113 moves along the limiting groove 2-123, the main body 2-113 is slidable relative to the filter element mounting seat 2-120, and the main body 2-113 is stationary relative to the filter element mounting seat 2-120; in the circumferential direction of the main body 2-113 or in the circumferential direction in which the main body 2-113 moves along the limiting groove 2-123, the main body 2-113 is stationary relative to the filter element mounting seat 2-120, and the cover 2-114 is rotatable relative to the main body 2-113. On the one hand, it is convenient to assemble the filter element body 2-110 onto the filter element mounting seat 2-120; on the other hand, it is also convenient to install the water outlet pipe 2-116 of the filter element body 2-110 onto the waterway plate.

In order to facilitate the operator to hold the filter element body 2-110, as shown in Figures 17 and 18, a handle portion 2-117 is provided on the side of the cover body 2-114 away from the main body portion 2-113, and the handle portion 2-117 is in the shape of a knob, so that the operator can rotate the cover body 2-114 by holding the handle portion 2-117.

As shown in FIG. 18 , according to some embodiments of the present application, in the length direction of the limiting rib 2-111, the width of the cover body 2-114 is less than the length of the limiting rib 2-111. For example, as shown in FIG. 18 , the width of the cover body 2-114 is L1, and the length of the limiting rib 2-111 is L2, wherein L2>L1. By setting the length of the limiting rib 2-111 to be greater than the width of the cover body 2-114, when installing the filter element body 2-110 on the filter element mounting seat 2-120, the filter element body 2-110 can be first inserted into the opening 2-122 of the mounting cavity 2-121. Under the condition of being blocked by the cover body 2-114 structure, the assembler can observe the position of the limiting rib 2-111, thereby facilitating the adjustment of the limiting rib 2-111 to the position of the bell mouth 2-124.

In addition, when the filter element body 2-110 is inserted into the opening 2-122 and becomes misaligned, since the length of the limiting rib 2-111 is greater than the width of the cover body 2-114, the assembler can promptly discover that the position of the limiting rib 2-111 does not correspond to the position of the bell mouth 2-124, thereby facilitating the assembler to promptly adjust the position of the limiting rib 2-111, and further facilitating the assembly of the filter element body 2-110 into the filter element mounting seat 2-120.

In combination with Figures 17 and 18, according to some embodiments of the present application, a rotating ridge 2-115 is provided on the cover body 2-114, and a rotating groove 2-125 is provided on the inner peripheral wall of the installation cavity 2-121. The rotating groove 2-125 and the rotating groove 2-125 extend along the circumferential direction of the main body 2-113, and the limiting groove 2-123 extends along the length direction of the main body 2-113. With the cooperation of the rotating ridge 2-115 and the rotating groove 2-125 and the rotating groove 2-125, and the cooperation of the limiting groove 2-123 and the limiting rib 2-111, the cover body 2-114 rotates relative to the main body 2-113, and the cover body 2-114 and the main body 2-113 move along the direction of the limiting groove 2-123.

It is understood that, under the cooperation of the rotating groove 2-125, the rotating groove 2-125 and the rotating ridge 2-115, the cover body 2-114 plays a role in pushing the main body 2-113 to move, so that the main body 2-113 can move along the extension direction of the limiting groove 2-123, so that the filter element body 2-110 can move along the extension direction of the limiting groove 2-123 in the installation cavity 2-121, and then the filter element body 2-110 can have an assembly force in its axial direction, so that when the filter element body 2-110 is inserted into the installation cavity 2-121, the filter element body 2-110 also has an assembly force to be plugged into the waterway plate, so as to achieve the purpose of plugging the filter element body 2-110 with the waterway plate. For the convenience of understanding, the cooperation of the rotating groove 2-125, the rotating groove 2-125 and the rotating ridge 2-115 can be understood as a threaded cooperation. In order to facilitate the coordination of the rotating groove 2-125 and the rotating protrusion 2-115, as shown in Figure 14, the opening 2-122 of the rotating groove 2-125 and the rotating groove 2-125 is connected to the bell mouth 2-124.

The filter element assembly 2-100 according to the embodiment of the present application is described in detail below in conjunction with Figures 13 to 18. It is worth noting that the following description is only an exemplary description and is not a specific limitation of the present application.

As shown in Fig. 13, the filter element assembly 2-100 includes a filter element body 2-110 and a filter element mounting seat 2-120. The filter element body 2-110 has a filtering function, and a water outlet pipe 2-116 is provided on the filter element body 2-110. Water entering the filter element body 2-110, waste water generated after filtration, and pure water can all flow out through the corresponding water outlet pipe 2-116. The water outlet pipe 2-116 is plugged into the waterway board, and the corresponding water outlet pipe 2-116 is suitable for communicating with the corresponding waterway on the waterway board.

As shown in Fig. 14 and Fig. 15, the filter element mounting seat 2-120 has a mounting cavity 2-121 inside, and one side of the mounting cavity 2-121 has an opening 2-122, and the filter element body 2-110 is suitable for being installed in the mounting cavity 2-121 through the opening 2-122. The outer peripheral wall of the filter element body 2-110 is provided with a limiting rib 2-111, and the inner wall of the mounting cavity 2-121 is provided with a limiting groove 2-123, and the limiting rib 2-111 is suitable for sliding along the limiting groove 2-123. The cooperation between the limiting rib 2-111 and the limiting groove 2-123 is used to limit the rotation of the filter element body 2-110 in its circumferential direction.

As shown in FIG. 17 and FIG. 18, the filter element body 2-110 also includes a body part 2-113 and a cover body 2-114. Among them, the limiting rib 2-111 is arranged on the outer peripheral wall of the body part 2-113, the body part 2-113 is arranged in the installation cavity 2-121, and the body part 2-113 can slide along the length direction of the limiting groove 2-123. The cover body 2-114 is covered at the end of the body part 2-113, and part of the structure of the cover body 2-114 is located in the opening 2-122, and the cover body 2-114 can rotate relative to the body part 2-113. It can be understood that in the axial direction of the main body 2-113 or the direction in which the main body 2-113 moves along the limiting groove 2-123, the main body 2-113 is slidable relative to the filter element mounting seat 2-120, and the main body 2-113 is stationary relative to the filter element mounting seat 2-120; in the circumferential direction of the main body 2-113 or the circumferential direction in which the main body 2-113 moves along the limiting groove 2-123, the main body 2-113 is stationary relative to the filter element mounting seat 2-120, and the cover 2-114 is rotatable relative to the main body 2-113. On the one hand, it is convenient to assemble the filter element body 2-110 onto the filter element mounting seat 2-120; on the other hand, it is also convenient to install the water outlet pipe 2-116 of the filter element body 2-110 onto the waterway plate.

As shown in Figure 18, a rotating ridge 2-115 is provided on the cover body 2-114, and a rotating groove 2-125 is provided on the inner circumferential wall of the installation cavity 2-121. The rotating groove 2-125 and the rotating groove 2-125 extend along the circumferential direction of the main body 2-113, and the limiting groove 2-123 extends along the length direction of the main body 2-113. With the cooperation of the rotating ridge 2-115 and the rotating groove 2-125 and the rotating groove 2-125, as well as the cooperation of the limiting groove 2-123 and the limiting rib 2-111, the cover body 2-114 rotates relative to the main body 2-113, and the cover body 2-114 and the main body 2-113 move along the direction of the limiting groove 2-123. It can be understood that, with the cooperation of the rotating groove 2-125, the rotating groove 2-125 and the rotating ridge 2-115, the cover body 2-114 plays a role in pushing the main body 2-113 to move, so that the main body 2-113 can move along the extension direction of the limiting groove 2-123, so that the filter element body 2-110 can move in the installation cavity 2-121 along the extension direction of the limiting groove 2-123, and then the filter element body 2-110 can have an assembly force in its axial direction, so that when the filter element body 2-110 is inserted into the installation cavity 2-121, the filter element body 2-110 also has the assembly force to be plugged into the waterway plate, so as to achieve the purpose of plugging the filter element body 2-110 with the waterway plate.

As shown in FIG. 18 , the width of the limiting rib 2-111 is 2 mm to 5 mm, and the end of the limiting rib 2-111 has a guiding slope 2-112. The guiding slope 2-112 has a guiding function, which can guide the filter element body 2-110 into the limiting groove 2-123. For example, when installing the filter element body 2-110 on the filter element mounting seat 2-120, the filter element body 2-110 can be first inserted into the opening 2-122 of the mounting cavity 2-121, and then the guiding slope 2-112 on the limiting rib 2-111 is used to slide into the bell mouth 2-124. Under the guiding effect of the guiding slope 2-112 and the bell mouth 2-124, the limiting rib 2-111 slides into the limiting groove 2-123, and the limiting rib 2-111 slides along the limiting groove 2-123, and the filter element body 2-110 is moved to a predetermined position.

In the length direction of the limiting rib 2-111, the width of the cover 2-114 is smaller than the width of the limiting rib 2-111. Length. For example, as shown in FIG18, the width of the cover body 2-114 is L1, and the length of the limiting rib 2-111 is L2, wherein L2＞L1. By setting the length of the limiting rib 2-111 to be greater than the width of the cover body 2-114, when installing the filter element body 2-110 on the filter element mounting seat 2-120, the filter element body 2-110 can be first inserted into the opening 2-122 of the mounting cavity 2-121. Even under the condition of being blocked by the cover body 2-114 structure, the assembler can still observe the position of the limiting rib 2-111, thereby facilitating the adjustment of the limiting rib 2-111 to the position of the bell mouth 2-124.

As shown in Figures 13 and 15, the water purification device 2-1000 according to the embodiment of the present application includes a housing 2-200 and the filter element assembly 2-100 as described above. Specifically, the filter element assembly 2-100 is arranged in the housing 2-200, the housing 2-200 and the filter element mounting seat 2-120 of the filter element assembly 2-100 are an integrally formed part, and the opening 2-122 of the filter element assembly 2-100 is arranged on the housing 2-200. It should be noted that the filter element mounting seat 2-120 and the housing 2-200 are molded at the same time through a single injection molding process to construct an integrated part, which can reduce production costs, simplify assembly steps, reduce production costs, and improve production efficiency.

According to the water purification device 2-1000 of the embodiment of the present application, the moving range of the limiting rib 2-111 is limited by utilizing the limiting effect of the limiting groove 2-123, thereby limiting the movement range of the filter element body 2-110; further, by providing a bell mouth 2-124 at one end of the limiting groove 2-123, not only can the guiding effect of the bell mouth 2-124 be utilized to guide the limiting rib 2-111 to fit into the limiting groove 2-123, but the bell mouth 2-124 also has the advantages of a wide mouth for entry and a narrow mouth for exit, thereby facilitating the limiting rib 2-111 to fit into the limiting groove 2-123.

According to some embodiments of the present application, the water purification device 2-1000 further includes a booster pump, a waterway plate, a pump body mounting seat and a plate body mounting seat, wherein the pump body mounting seat is used to carry the booster pump, and the body mounting seat is used to carry the waterway plate. In order to simplify the assembly process of the water purification device 2-1000, the housing 2-200, the filter element mounting seat 2-120, the pump body mounting seat and the plate body mounting seat can be made by a one-time injection molding process, that is, the housing 2-200, the filter element mounting seat 2-120, the pump body mounting seat and the plate body mounting seat are an integrally formed part, which can reduce production costs, simplify assembly steps, reduce production costs, and improve production efficiency.

Furthermore, the opening 2-122 of the pump body mounting seat is oriented in the same direction as the opening 2-122 of the plate body mounting seat, so that when installing the booster pump and the waterway plate, they can be installed in the same assembly direction, thereby eliminating the need to flip the casing 2-200, thereby simplifying the assembly process of the water purification device 2-1000 and shortening the assembly cycle.

Finally, it should be noted that the above implementation modes are only used to illustrate the present application, rather than to limit the present application. Although the present application is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent substitutions of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application, and should be included in the scope of the claims of the present application.

Claims (30)

A filter element assembly, comprising: A filter element seat body, the filter element seat body having a mounting cavity and a mounting opening communicating with the mounting cavity, an inner wall of the mounting opening being provided with a lead-out groove, the lead-out groove being arranged to extend obliquely along the circumference of the mounting opening, and the lead-out groove being communicated with the mounting opening; A filter element body, wherein the filter element body is arranged in the installation cavity, one end of the filter element body is plugged with the waterway plate, and the other end of the filter element body is provided with a rotating connection part; An end cover is arranged corresponding to the installation port, and the end cover is rotatably connected to the filter element body through the rotating connection portion. A clamping protrusion corresponding to the lead-out groove is provided on the outer peripheral wall of the end cover, and the clamping protrusion can slide along the lead-out groove to axially bring part of the filter element body away from the installation cavity. According to the filter element assembly according to claim 1, wherein the snap-fit protrusion has an inclined end face and an abutment protrusion, the abutment protrusion is arranged at one end of the inclined end face close to the outlet groove, and the abutment protrusion abuts and cooperates with the groove wall of the outlet groove. The filter element assembly according to claim 2, wherein the lead-out groove includes a lead-out wall, the lead-out wall is arranged in a streamlined manner along the circumference of the mounting port, the lead-out wall includes a first lead-out section and a second lead-out section, and the curvature of the first lead-out section is greater than the curvature of the second lead-out section. The filter element assembly according to claim 3, wherein the central angle corresponding to the arc length of the first lead-out section extending circumferentially along the mounting port is α, wherein α is greater than or equal to 10°. The filter element assembly according to claim 3 or 4, wherein the inclination of the inclined end surface is greater than the inclination of the outlet wall. The filter element assembly according to any one of claims 1 to 5, wherein the end cover is raised toward a side away from the filter element body to form a gripping portion. The filter element assembly according to claim 6, wherein an outer peripheral edge of the holding portion at one end away from the filter element body protrudes to form an undercut. The filter element assembly according to claim 6 or 7, wherein a protrusion distance H of the gripping portion along the axial direction of the end cover is greater than or equal to 12 mm. According to any one of claims 1-8, the filter element assembly, wherein the outer peripheral edge of the end cover is provided with a flange portion toward the filter element body, the flange portion is provided on an end of the filter element body provided with the rotating connection portion, and the clamping protrusion is provided on the outer wall surface of the flange portion. A water purification device, comprising the filter element assembly as claimed in any one of claims 1 to 9. A filter element assembly, comprising: A filter element seat body, the filter element seat body having a mounting cavity and a mounting opening communicated with the mounting cavity, and a guide groove is provided on the inner wall of the mounting opening; A filter element body, wherein the filter element body is arranged in the installation cavity, one end of the filter element body is plugged with the waterway plate, and the other end of the filter element body is provided with a rotating connection part; An end cover, the end cover is correspondingly arranged at the installation opening, the end cover is rotatably connected to the filter element body through the rotating connection portion, a clamping protrusion corresponding to the guide groove is provided on the outer peripheral wall of the end cover, and the clamping protrusion can slide along the guide groove to lock or unlock the position of the filter element body in the installation cavity; Wherein, the inclination of the notch end of the guide groove is different from the inclination angle of the introduction end of the clamping protrusion. The filter element assembly according to claim 11, wherein the guide groove comprises a first guide surface provided at the inlet end, the first guide surface is inclined along the circumference of the mounting opening, and the clamping protrusion comprises a second guide surface provided at the introduction end, the second guide surface is inclined along the circumference of the mounting opening. The end cover is arranged to be inclined in the circumferential direction, and the angle α1 between the first guide surface and the axial direction is different from the angle β1 between the second guide surface and the cross section. The filter element assembly according to claim 12, wherein the guide groove also includes a first abutment surface, the first abutment surface is connected to an end of the first guide surface away from the slot, the snap-in protrusion includes a second abutment surface, the second abutment surface is connected to a side of the second guide surface away from the introduction end, the second abutment surface is extended along the circumference of the end cover, and the first abutment surface and the second abutment surface are abutted against each other. The filter element assembly according to claim 12 or 13, wherein the angle α1 between the first guide surface and the axial direction is greater than or equal to 30°. The filter element assembly according to any one of claims 12 to 14, wherein an angle β1 between the second guide surface and a cross section perpendicular to the axial direction of the end cover is greater than or equal to 30°. The filter element assembly according to any one of claims 12 to 15, wherein the bottom wall of the guide groove is inclined, and the angle between the bottom wall and the cross section perpendicular to the axial direction of the filter element seat body is γ1, wherein γ1 is greater than or equal to β1. The filter element assembly according to any one of claims 11-16, wherein the end cover is raised toward a side away from the filter element body to form a gripping portion. The filter element assembly according to claim 17, wherein a protrusion distance H1 of the gripping portion along the axial direction of the end cover is greater than or equal to 12 mm. According to any one of claims 11-18, the outer peripheral edge of the end cover is provided with a flange portion toward the filter element body, the flange portion is provided on one end of the filter element body where the rotating connection portion is provided, and the clamping protrusion is provided on the outer wall surface of the flange portion. A water purification device comprises a housing and a filter element assembly as claimed in any one of claims 11 to 19. A filter element assembly, comprising: A filter element body, wherein the outer peripheral wall of the filter element body is provided with limiting ribs; A filter element mounting seat, wherein the filter element mounting seat has an installation cavity inside, one side of the installation cavity has an opening, the filter element body is suitable for being installed in the installation cavity through the opening, a limiting groove is provided on the inner wall of the installation cavity, the limiting rib is suitable for sliding along the limiting groove, the limiting rib and the limiting groove cooperate to limit the rotation of the filter element body in its circumferential direction, one end of the limiting groove is provided with a bell mouth, and the bell mouth is connected to the opening. The filter element assembly according to claim 21, wherein the limiting ribs are multiple and the multiple limiting ribs are spaced apart along the circumferential direction of the filter element body. According to the filter element assembly according to claim 21 or 22, wherein the width of the limiting rib is 2mm-5mm. A filter element assembly according to any one of claims 21-23, wherein the limiting rib is linear. A filter element assembly according to any one of claims 21-24, wherein the end of the limiting rib has a guiding slope. The filter element assembly according to any one of claims 21 to 25, wherein the filter element body comprises: A main body, wherein the limiting rib is arranged on the outer peripheral wall of the main body, the main body is arranged in the installation cavity, and the main body is slidable along the length direction of the limiting groove; The cover body is arranged on the end of the main body, a part of the structure of the cover body is located in the opening, and the cover body is rotatable relative to the main body. The filter element assembly according to claim 26, wherein the length of the limiting rib In the direction, the width of the cover body is smaller than the length of the limiting rib. The filter element assembly according to claim 26 or 27, wherein the cover body is provided with a rotation ridge, the inner peripheral wall of the mounting cavity is provided with a rotation groove, the rotation groove extends along the circumferential direction of the body portion, and the limiting groove extends along the length direction of the body portion. Under the cooperation between the rotating convex strip and the rotating groove, and the cooperation between the limiting groove and the limiting rib, the cover body rotates relative to the main body, and the cover body and the main body move along the direction of the limiting groove. The filter element assembly according to claim 28, wherein the opening of the rotation groove is connected to the bell mouth. A water purification device, comprising: A filter element assembly, wherein the filter element assembly is a filter element assembly according to any one of claims 21 to 29; The filter element assembly is arranged in the casing, the casing and the filter element mounting seat of the filter element assembly are an integrally formed part, and the opening of the filter element assembly is arranged on the casing.