CN219711703U - Filtering connecting piece, filtering component and filter - Google Patents

Abstract

The utility model relates to the field of liquid filtration, in particular to an engine oil and fuel oil filter of an internal combustion engine, and in particular relates to a filter connecting piece, a filter assembly and a filter. The filter component comprises a filter element and a filter connecting piece, wherein the filter connecting piece and the filter element are arranged in a separable way. Through setting up the oil return stopper in the eccentric position department in the end dish outside on filtering the connecting piece, in the installation use, the accessible is visual to inspect whether the oil return stopper of filtering the connecting piece is installed in place, and the filter core can be installed by straight inserting, avoids filter core installation distortion damage or installation failure to bring the lubrication trouble of parts system or oil feeding trouble. The filtering connecting piece is arranged separately from the filter element, so that the processing difficulty and the quality control cost are reduced; meanwhile, the filtering connecting piece can be reused, so that maintenance cost is reduced.

Description

Filtering connecting piece, filtering component and filter

Technical Field

The utility model relates to the technical field of liquid filtration, in particular to filtration of oil liquid of an internal combustion engine, and specifically relates to a filtration connecting piece, a filtration assembly and a filter.

Background

In order to avoid environmental pollution caused by oil overflow in the maintenance and replacement process of the filter element of the filter, an oil return channel is arranged in the filter shell, an oil return plug is arranged on the filter element, when the filter element is correctly installed, the oil return plug of the filter element seals the oil return channel to ensure normal system oil pressure, and the oil return channel is required to be opened to discharge the oil in the filter shell in the process of disassembling the filter element.

Typically, during installation of the filter, an operator must accurately adjust the rotational position between the guide and the oil return plug when installing the annular filter element into the filter housing, wherein experience may be prone to error.

The prior art patent CN102781542B discloses a liquid filter, wherein the latter proposes an annular filter insert for a liquid filter, wherein the annular filter insert is formed from a hollow cylindrical filter material body surrounded on the end side by an end disk and can be arranged interchangeably in a filter housing, wherein an eccentric blocking element for an eccentric opening in the bottom of the filter housing is arranged at the lower end disk facing the bottom of the filter housing in the installed state, wherein a positioning element is provided at the annular filter insert, which cooperates with the positioning element provided at the filter housing and guides the blocking element into engagement with the eccentric opening when the annular filter insert is inserted into the filter housing, wherein a first positioning element is a beveled plane, and wherein a second positioning element is a radially projecting nose, which is arranged opposite the beveled plane, and wherein the beveled plane and the eccentric nose can be moved relative to one another in a sliding manner and thus can guide the eccentric nose into engagement with the blocking element when the annular filter insert is rotated relative to the filter housing. In the patent, a positioning piece (nose) and an oil return plug (locking element) are arranged on a filter element, and when the filter element is installed, the filter element is guided by the positioning piece (nose) to passively rotate relative to a filter shell, and in the process, if rotation clamping stagnation exists, the positions of the positioning piece (nose) and the oil return plug (locking element) are deviated or the filter element is distorted and deformed to be damaged, so that lubrication failure or oil supply failure of a machine part system is caused by installation failure;

in general, the positioning piece (nose) and the oil return plug (locking element) need to have a relatively fixed position relationship, in the technical scheme disclosed in the patent, the positioning piece (nose) and the oil return plug (locking element) are preferably arranged on the lower end disc of the filter element at the same time, and in the case that the positioning piece (nose) and the oil return plug (locking element) are arranged on different component parts of the filter element, such as the nose is arranged on the inner edge of the filter element (such as the inner wall of a central supporting tube of the filter element), the locking element is arranged on the lower end disc of the filter element, in practical application, because the filter element and the matched filter shell are different in structure, in most cases, the nose is only arranged on the inner wall of the central supporting tube of the filter element, the locking element is arranged on the lower end disc of the filter element, when the nose and the locking element are arranged on different parts, the assembly of the filter element is required to be completed according to the mutual positions between the parts, and the positions of the filter element are ensured not to deviate when the filter element is subsequently arranged on the assembly shell, so that the processing process becomes relatively complex and difficult to control, and the processing position deviation easily occurs, and the product is scrapped.

For the above reasons, the filter cartridge is prone to have a problem of erroneous installation, resulting in the case where the oil return plug (blocking member) does not close the oil return passage, and it is difficult to confirm whether the oil return plug (blocking member) has closed the oil return passage after the filter cartridge is installed.

Disclosure of Invention

In order to overcome the technical problems in the prior art, the utility model provides a filtering connecting piece, a filtering assembly and a filter, wherein an oil return plug is arranged at the eccentric position of the outer side of an end disc on the filtering connecting piece; the filter connecting piece is arranged separately from the filter element, so that the processing difficulty and the quality control cost are reduced;

in order to achieve the purpose, the utility model is realized by the following technical scheme:

a filter connecting piece is used for connecting a filter element and a shell, and comprises a tubular framework part and an end disc connected with the framework part, wherein a protruding part radially extends outside the end disc, the end disc comprises an oil return plug, the oil return plug is arranged on the protruding part, the protruding part is used for determining the installation position of the oil return plug, and an opening part is arranged at the center of the end disc.

Preferably, the skeleton portion is axially provided with a plurality of axial rib plates, the skeleton portion is radially provided with a plurality of radial rib plates, and a plurality of axial rib plates and a plurality of radial rib plates are staggered to form the oil through holes.

Preferably, the periphery of the skeleton portion is provided with a guide rib.

Preferably, the guide rib is a spiral rib plate.

Preferably, the inner wall of the skeleton portion extends radially inwards to form a clamping portion for connecting the screw cap.

The filter assembly comprises a filter element and a filter connecting piece, wherein the filter connecting piece and the filter element are arranged in a separable way, the filter element comprises a filter medium, a first end cover, a second end cover and a hollow cavity, the first end cover and the second end cover are respectively connected with two ends of the filter medium, a central opening communicated with the hollow cavity is formed in the second end cover, and the central openings of the hollow cavity and the second end cover can accommodate a framework part of the filter connecting piece and are used for limiting the radial position of the filter element; and a detachable sealing connection part is arranged between the filter element and the filtering connection piece and is used for carrying out sealing connection on the framework part and the second end cover.

Preferably, the end disk outer diameter is smaller than the second end cap outer diameter.

Preferably, the first end cap is provided with a first connecting portion for detachably connecting the skeleton portion.

Preferably, the first end cap is provided with a second connecting portion for connecting the screw cap.

A filter comprises the filter assembly, a shell and a spiral cover.

Compared with the prior art, the utility model has the following beneficial effects:

through setting up the oil return stopper in the eccentric position department in the end dish outside on filtering the connecting piece, can directly see whether the oil return stopper of filtering the connecting piece is installed in place, in the installation use, the filter core can carry out the direct insertion installation, and after cancelling original guide, does not receive guide drive and installation jamming's influence, avoids the filter core installation distortion damage.

Through filter connecting piece and filter core separation setting, can realize processing filter core and filter connecting piece respectively, filter connecting piece can realize integrated into one piece to simplified the production technology of filter core, reduced the processing degree of difficulty and quality control cost.

Through filter connecting piece and filter core separation setting, filter connecting piece repeatedly usable, the user still can only be to the filter core selective replacement, has reduced maintenance cost.

Drawings

FIG. 1 is a schematic view of the overall structure of a filter assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a skeleton portion according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a skeleton portion according to another embodiment of the present utility model;

FIG. 4 is a schematic view of a filter element according to an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of the filter assembly of one embodiment of the present utility model in an assembled, mated condition;

FIG. 6 is a schematic view of a first end cap according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a first end cap according to another embodiment of the present utility model;

FIG. 8 is a schematic view of a first end cap according to another embodiment of the present utility model;

FIG. 9 is a schematic view of a first end cap according to another embodiment of the present utility model;

FIG. 10 is a schematic cross-sectional view showing the overall structure of a filter according to an embodiment of the present utility model;

FIG. 11 is a schematic view of a housing of a filter according to an embodiment of the utility model;

fig. 12 is a schematic view illustrating a structure of a filter attachment and a filter housing of a filter according to an embodiment of the utility model.

In the figure: 1. a filter connection; 11. a skeleton portion; 112. axial rib plates; 113. radial rib plates; 114. oil holes; 115. a clamping part; 12. an end plate; 121. a protruding portion; 13. an oil return plug; 16. an opening portion; 17. a flow guiding rib; 2. a filter element; 21. a filter medium; 22. a first end cap; 221. a second connecting portion; 222. a first connection portion; 223. an opening; 23. a second end cap; 231. a central opening; 25. a hollow cavity; 3. screwing the cover; 31. the screw cap is buckled; 4. a housing; 41. an oil return hole; 44. an oil inlet hole; 45. an oil outlet hole; 5. sealing the connection.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in the present utility model will be understood by those skilled in the art according to specific circumstances.

Referring to fig. 2, in a first embodiment of a filter connecting member according to the present utility model, in this embodiment, the filter connecting member 1 is used for connecting a filter element 2 and a housing 4, and includes a tubular skeleton portion 11, an end disc 12 connected to the skeleton portion 11, and an oil return plug 13 disposed at an eccentric position outside the end disc 12, where the oil return plug 13 is used for sealing an oil return channel of the housing 4 to ensure normal system oil pressure; referring to fig. 1, an opening 16 is provided at the center of the end disc 12 for radial positioning of the filter connection member 1 installed in the housing 4, so as to improve the reliability of installation; through setting up oil return plug 13 in the eccentric position department in the end dish 12 outside on filtering connecting piece 1, can directly see whether the oil return plug 13 of filtering connecting piece 1 installs in place, in the installation use, filter core 2 can carry out the direct insertion installation, and cancel original guide spare after, do not receive guide spare drive and installation jamming's influence, avoid filter core 2 installation distortion damage or installation failure to bring the lubrication trouble or the oil feeding trouble of parts system, have the reliable characteristics of installation.

In this embodiment, the outer side of the end disc 12 radially extends to form a protruding portion 121, the end disc 12 includes an oil return plug 13, the oil return plug is disposed on the protruding portion 121, the protruding portion 121 is used for determining a mounting position of the oil return plug 13, and whether the oil return plug 13 of the filter connecting piece 1 is mounted in place can be directly seen in the mounting process.

In this embodiment, the outer periphery of the skeleton portion 11 is provided with a deflector rib 17. The guide ribs 17 are used for oil circulation, so that resistance to the flow of fuel oil or engine oil is reduced.

Referring to fig. 2, in this embodiment, the guide rib 17 is a spiral rib. The spiral rib plate is relatively thicker in the radial direction, can bear larger radial pressure of fuel oil or engine oil, improves the strength of the skeleton part 11, and simultaneously maintains a wider diversion channel.

In this embodiment, at least two axial ribs 112 are axially disposed on the skeleton portion 11, at least two radial ribs 113 are radially disposed on the skeleton portion 11, and at least two axial ribs 112 and at least two radial ribs 113 are staggered to form an oil hole 114. The radial rib 113 may be used for detachably clamping with the cap screwing buckle 31 of the cap screwing 3, and the oil through hole 114 is used for oil circulation.

In this embodiment, the inner wall of the skeleton portion 11 extends radially inward to form a clamping portion 115 for connecting the screw cap 3. The clamping portion 115 may be a plurality of hooks or snap rings, and is used for being connected with the screw cap 3 in a matching manner.

Referring to fig. 1, 2, 4, 5 and 6, in this embodiment, the filter assembly of the present utility model includes a filter element 2 for filtering oil and a filter connecting member 1, where the filter connecting member 1 is detachably disposed with the filter element 2, and the filter connecting member 1 is disposed separately from the filter element 2, so that the filter element 2 and the filter connecting member 1 can be processed respectively, the filter connecting member 1 can be formed integrally, and the production process of the filter element is simplified, and the processing difficulty and the quality control cost are reduced; the filter connecting piece 1 is arranged in a way of separating from the filter element 2, the filter connecting piece 1 can be reused, and a user can only selectively replace the filter element 2, so that the maintenance cost is reduced; the filter element 2 comprises a filter medium 21, a first end cover 22, a second end cover 23 and a hollow cavity 25, wherein the first end cover 22 and the second end cover 23 are respectively connected with two ends of the filter medium 21, a central opening 231 communicated with the hollow cavity 25 is formed in the second end cover 23, and the central openings 231 of the hollow cavity 25 and the second end cover 23 can accommodate the framework part 11 of the filter connecting piece 1 and are used for limiting the radial position of the filter element 2. The filter element 2 can be directly installed, is not influenced by driving of a guide piece and installation clamping stagnation, and avoids lubrication failure or oil supply failure of a machine part system caused by distortion and damage of installation of the filter element 2 or installation failure. A detachable sealing connection part 5 is arranged between the filter element 2 and the filter connection piece 1, the sealing connection part 5 is used for carrying out sealing connection on the framework part 11 and the second end cover 23, and the sealing connection part 5 can be a sealing ring.

In this embodiment, the outer diameter of the end disk 12 is smaller than the outer diameter of the second end cap 23. After the outer diameter of the end disc 12 is reduced, whether the oil return plug 13 of the filter connecting piece 1 is in place can be seen visually, and whether the oil return plug 13 of the filter connecting piece 1 is in place can be seen directly.

In this embodiment, the first end cap 22 is provided with a first connection portion 222 for detachably connecting the frame portion 11. The first connecting portion 222 may be a hook or an external clip, and is configured to be clamped with the skeleton portion 11.

In this embodiment, the first end cap 22 is provided with a second connection portion 221 for connecting the screw cap 3. The second connecting portion 221 is provided at a central position of the first end cap 22. The second connecting portion 221 may be a hook or an external clip, for being engaged with the screw cap 3.

Referring to fig. 10-12, the present utility model also provides a filter, which in this embodiment includes the filter assembly, the housing 4 and the screw cap 3. The filtering assembly is used for being installed in the shell 4, the oil return hole 41 is formed in the shell 4, the oil return plug 13 is arranged at the eccentric position of the outer side of the end disc 12 on the filtering connecting piece 1, during the installation process, the filtering connecting piece 1 and the filter shell 4 can be installed first, meanwhile, whether the oil return plug 13 is installed in place or not can be easily and intuitively seen through a visual method after the filtering connecting piece 1 is installed (as shown in fig. 12), under the condition that the oil return plug 13 is confirmed to seal an oil return channel, the filter element is directly installed in a direct inserting mode, the filter element can be prevented from being installed and deformed to be damaged, and after the original guide piece is cancelled, the influence of driving and installation clamping stagnation of the guide piece is avoided, and lubrication faults or oil supply faults of a machine part system caused by installation and deformation damage or installation failure of the filter element 2 are avoided.

After the filter is normally installed, fuel enters from the oil inlet hole 44 of the shell 4, is filtered by the filter medium 21 to be filtered by the impurities of the particles, passes through the oil through hole 114 and passes through the cleaning channel in the filter connecting piece 1 to reach the oil outlet 45 of the shell 4, and is discharged from the oil outlet 45 of the shell 4, so that the filtering process of the impurities of the particles of the fuel is completed.

When the filter is disassembled, the spiral cover 3 is opened, and as any radial rib 113 or the second connecting part 221 of the filter connecting piece 1 is connected with the clamping connection of the second connecting part 222, the filter assembly (the combination of the filter connecting piece 1 and the filter element 2) is taken out of the shell 4 along with the spiral cover 3, at the moment, the oil return plug 13 is removed from the oil return hole 41 to drain oil, the oil returns to the oil storage device through the oil return hole 41, and the filter connecting piece 1 and the filter element 2 are taken out of the spiral cover 3 by removing any radial rib 113 or the clamping connection of the second connecting part 221 of the filter connecting piece 1 and the second connecting part 222.

When the filter is disassembled, the oil return plug 13 is removed from the oil return hole 41 to drain oil, and the oil returns to the oil tank through the oil return hole 41.

In a second embodiment of the filtering connecting piece of the present utility model, in this embodiment, the guide ribs 17 are a plurality of ribs which are staggered with each other, so that a wider guide channel is maintained.

Referring to fig. 3, a third embodiment of a filter assembly according to the present utility model is shown, in which the axial rib 112 is provided with an inwardly protruding engagement portion 115. The clamping portion 115 is used for being matched and clamped with the spiral cover 3.

Referring to fig. 7, a second embodiment of a filter assembly according to the present utility model is shown, in which the second connecting portion 221 is disposed at a position away from the center of the first end cap 22 and away from the first end cap 22.

Referring to fig. 8, a third embodiment of a filter assembly according to the present utility model is shown, in which the second connecting portion 221 is disposed at a center of the first end cap 22, and the first end cap 22 is provided with an opening 223 at a center.

Referring to fig. 9, a fourth embodiment of a filter assembly according to the present utility model is shown, in which the second connecting portion 221 is disposed at a position of the first end cap 22 away from the center of the first end cap 22, and the center of the first end cap 22 is provided with an opening 223.

The oil return plug 13 is arranged at the eccentric position of the outer side of the end disc 12 on the filter connecting piece 1, the outer diameter of the end disc 12 is smaller, whether the oil return plug 13 of the filter connecting piece 1 is in place or not can be directly seen visually, in the installation and use process, the filter element 2 can be directly installed in an inserting mode, and after the original guide piece is cancelled, the influence of driving and installation clamping stagnation of the guide piece is avoided, and the installation distortion and damage of the filter element 2 are avoided; the filter connecting piece 1 and the filter element 2 are arranged separately, and the manufacturing process is simple; in addition, this device can process filter connecting piece 1 and filter core 2 respectively, carries out back assembly connection with filter core 2 and filter connecting piece 1 again, and when necessary, can split filter core 2 and filter connecting piece 1 after the connection.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A filter connecting piece (1) for the connection of filter core (2), casing (4), its characterized in that: including tubular skeleton portion (11), end dish (12) of being connected with skeleton portion (11), end dish (12) outside radial extension has bulge (121), and end dish (12) are including oil return stopper (13), oil return stopper locates on bulge (121), and bulge (121) are used for confirming the mounted position of oil return stopper (13), end dish (12) center department is equipped with opening (16).

2. A filter connection according to claim 1, wherein: the novel oil pipe is characterized in that a plurality of axial rib plates (112) are axially arranged on the framework portion (11), a plurality of radial rib plates (113) are radially arranged on the framework portion (11), and the axial rib plates (112) and the radial rib plates (113) are staggered to form oil holes (114).

3. A filter connection according to claim 1, wherein: the periphery of the framework part (11) is provided with guide ribs (17).

4. A filter connection as claimed in claim 3, wherein: the guide rib (17) is a spiral rib plate.

5. A filter connection according to claim 1, wherein: the inner wall of the framework part (11) extends radially inwards to form a clamping part (115) for connecting the spiral cover (3).

6. A filter assembly, characterized in that: the filter element comprises a filter element (2) and a filter connecting piece (1) as claimed in any one of claims 1-5, wherein the filter connecting piece (1) and the filter element (2) are arranged in a separable way, the filter element (2) comprises a filter medium (21), a first end cover (22) and a second end cover (23) which are respectively connected with two ends of the filter medium (21), and a hollow cavity (25), a central opening (231) which is communicated with the hollow cavity (25) is arranged on the second end cover (23), and the central openings (231) of the hollow cavity (25) and the second end cover (23) can accommodate a framework part (11) of the filter connecting piece (1) and are used for limiting the radial position of the filter element (2); a detachable sealing connection part (5) is arranged between the filter element (2) and the filter connection piece (1), and the sealing connection part (5) is used for sealing connection of the framework part (11) and the second end cover (23).

7. A filter assembly as defined in claim 6, wherein: the outer diameter of the end disc (12) is smaller than the outer diameter of the second end cover (23).

8. A filter assembly as defined in claim 6, wherein: the first end cover (22) is provided with a first connecting part (222) for detachably connecting the framework part (11).

9. A filter assembly as defined in claim 6, wherein: the first end cover (22) is provided with a second connecting part (221) for connecting the spiral cover (3).

10. A filter, characterized in that: comprising a filter assembly according to any one of claims 6 to 9, a housing (4) and a screw cap (3).