WO2021018033A1 - Water outlet switching valve and combined shower - Google Patents

Abstract

A water outlet switching valve, comprising: an outer housing (1) and a valve element (2); the outer housing (1) is provided with a water inlet (11), at least two water outlets (12), and an installation opening (13) for installing the valve element (2); the valve element (2) is placed in the outer housing (1) from the installation opening (13), and the outer wall of the valve element (2) is sealed to the inner wall of the outer housing (1) at the outer periphery of the water outlet (12) by means of sealing members (3) so that the water outlet may only communicate with the part of the valve element (2) located within the projection area of the sealing members (3); the valve element (2) is provided with a hollow cavity; the bottom end face of the hollow cavity is in communication with the water inlet (11), and the side face of the valve element (2) is provided with an opening (21) that communicates with the hollow cavity. The valve element (2) is subjected to external force to rotate along the axis of the valve element (2) in the outer housing (1); when the opening (21) rotates to the projected area of one of the sealing members, a corresponding water outlet of the sealing member is communicated with the water inlet by means of the opening and the hollow cavity to discharge water. In the water outlet switching valve, installation of the valve element is simple and the main body structure is simple, which may simplify the processing technology and reduce the production costs.

Description

Outlet switching valve and combined shower Technical field

The invention relates to a water outlet device, in particular to a water outlet switching valve.

Background technique

For the control valve core used by multiple water outlets, in addition to the function of switching water, it also needs to have the function of waterway switching, that is, switching different water outlets to discharge water. In traditional waterway switching valve cores, multiple outlet channels are often designed. When the valve stem is operated, the valve stem drives the seal to seal one of the channels and open the other channel, thus completing the waterway switching. This structure needs to involve multiple waterways that do not interfere with each other in the valve core. Therefore, the structure of the valve core is relatively complicated, the process steps during production are relatively complicated, and the processing cost is high.

Summary of the invention

The main technical problem to be solved by the present invention is to provide a water outlet switching valve, the valve core is simple to install, and the main structure is relatively simple, which can simplify the processing technology and reduce the production cost.

In order to solve the above technical problems, the present invention provides a water outlet switching valve, including: a housing and a valve core;

The housing has one water inlet and at least two water outlets, and an installation opening for installing the valve core;

The valve core is placed in the housing from the installation opening, and the outer wall of the valve core and the inner wall of the housing are connected in a sealed manner at the outer periphery of the water outlet by a sealing member, so that the water outlet can only be connected to the sealing member. The valve core within the projected area is connected;

The valve core has a hollow cavity, the bottom end surface of the hollow cavity is in communication with the water inlet, and the side surface of the valve core has an opening communicating with the hollow cavity; It rotates axially, and when the opening rotates to the projected area of one of the sealing elements, the water outlet corresponding to the sealing element is connected with the water inlet through the opening and the hollow cavity to discharge water.

In a preferred embodiment: the sealing element includes a first sealing ring and a second sealing ring arranged coaxially, wherein the first sealing ring is attached to the inner wall of the housing for sealing, and the second sealing ring is attached to the outer wall of the valve core. Close sealed.

In a preferred embodiment, it further includes a gland nut, the inner wall of the housing has a stepped surface, and the outer wall of the valve core has a limit surface that abuts and fits with the stepped surface; the gland nut is fixed At the installation opening, push the valve core until the limit surface abuts the step surface.

In a preferred embodiment, the gland nut has a relief opening, and the valve stem of the valve core protrudes out of the housing through the relief opening and is connected to the operating member in linkage.

In a preferred embodiment: the side of the valve core is provided with two openings at intervals along the circumferential direction, and the included angle between the two openings is different from the included angle between the two water outlets.

The present invention also provides a water outlet switching valve, including: a valve core and a valve core seat;

The valve core seat has one water inlet hole and at least two water outlet holes, and an installation opening for installing the valve core;

The valve core is placed in the valve core seat from the installation opening, and the outer wall of the valve core and the inner wall of the valve core seat are sealedly connected at the outer periphery of the water outlet hole by a seal, so that the water outlet hole can only Connect with the valve core located within the projection area of the seal;

The valve core has a hollow cavity, the bottom end surface of the hollow cavity is in communication with the water inlet, and the side of the valve core has an opening communicating with the hollow cavity; the valve core is acted on the valve core seat by an external force The inside rotates along its own axial direction. When the opening rotates to the projected area of one of the sealing elements, the water outlet hole corresponding to the sealing element communicates with the water inlet hole through the opening and the hollow cavity to produce water.

In a preferred embodiment: the sealing element includes a first sealing ring and a second sealing ring that are coaxially arranged, wherein the first sealing ring is in contact with the inner wall of the valve core seat for sealing, and the second sealing ring is The outer wall is fitted and sealed.

In a preferred embodiment: it further includes a gland nut, the inner wall of the valve core seat has a stepped surface, and the outer wall of the valve core has a limit surface that abuts and fits with the stepped surface; the gland The nut is fixed at the installation opening and pushes the valve core until the limit surface abuts the step surface.

In a preferred embodiment, the gland nut has a relief opening, and the valve stem of the valve core extends out of the valve core seat through the relief opening, and is connected to the operating member in linkage.

In a preferred embodiment: it further includes a housing with a hollow cavity and a through hole communicating with the hollow cavity; the valve core seat is placed in the hollow cavity through the through hole, and the housing is in contact with the The corresponding positions of the water inlet hole and the water outlet hole are respectively provided with a water inlet and a water outlet.

The present invention also provides a combined shower, which uses the above-mentioned water outlet switching valve.

Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

In the water outlet switching valve provided by the present invention, the structure of the housing itself is very simple, and it only needs to open the corresponding opening, and there is no need to design the water circuit of the housing itself. The structure of the valve core is also very simple, and also only requires a hollow cavity and a corresponding opening. Therefore, the structure of the housing and the valve core are simplified, the process requirements and process steps in the production process are simplified, and the production cost is relatively low. At the same time, after adopting this structure, the valve core can be installed into the shell from the installation opening of the shell as a whole, instead of being divided into two parts like the traditional valve core, and installed into the shell separately from two directions, which simplifies the valve core At the same time, the integrity of the valve core is relatively strong, and it is not easy to be damaged during use and installation.

Description of the drawings

Figure 1 is a perspective view of a water outlet switching valve in preferred embodiment 1 of the present invention;

2 is a cross-sectional view of the water outlet switching valve in the preferred embodiment 1 of the present invention;

Figure 3 is a perspective exploded view of the water outlet switching valve in the preferred embodiment 1 of the present invention;

Figure 3-1 is a three-dimensional exploded view of the valve core in the preferred embodiment 1 of the present invention;

4 and 5 are diagrams of the water outlets of the two outlets of the water outlet switching valve in the preferred embodiment 1 of the present invention;

Figure 6 is a perspective view of the water outlet switching valve in the preferred embodiment 2 of the present invention;

Figure 7 is a cross-sectional view of the water outlet switching valve in the preferred embodiment 2 of the present invention;

Fig. 8 is a three-dimensional exploded view of the outlet switch valve in the preferred embodiment 2 of the present invention;

Figures 9 and 10 are diagrams of the water outlets of the two outlets of the water outlet switching valve in preferred embodiment 2 of the present invention.

Detailed ways

Hereinafter, the present invention will be further described with reference to the drawings and specific embodiments.

Example 1

Referring to Figure 1 to Figure 5, a water outlet switching valve includes: a housing 1 and a valve core 2;

The housing 1 has a water inlet 11 and two water outlets 12, the housing 1 includes a first end 15 and a second end 14, the second end 14 is connected to the wall, the first end 15 is arranged at The other end of the housing 1 away from the wall, the first end 15 is provided with a mounting opening 13 for installing the valve core 2; the number of water outlets 12 can be adjusted freely according to the number of water outlet terminals, if The water outlet switching valve is used in a combined shower. In order to supply water to the head shower and the hand shower, the number of water outlets 12 can be set to two.

The valve core 2 is placed in the housing 1 from the installation opening 13, and the outer wall of the valve core 2 and the inner wall of the housing 1 are connected in a sealed connection at the outer periphery of the water outlet 12 by a seal 3, so that the outlet The nozzle 12 can only communicate with the valve core 2 located within the projection area of the seal 3;

The valve core 2 has a hollow cavity, the bottom end surface of the hollow cavity is in communication with the water inlet 11, and the side of the valve core 2 has an opening 21 communicating with the hollow cavity; the valve core 2 is subjected to external force on the The housing 1 rotates along its own axis. When the opening 21 rotates to the projected area of one of the sealing members 3, the water outlet 12 corresponding to the sealing member 3 communicates with the water inlet 11 through the opening 21 and the hollow cavity. And out of water.

Through the above description, after adopting the above-mentioned structural design, the structure of the housing 1 itself is very simple, and only the corresponding opening needs to be opened, and there is no need to design the waterway of the housing 1 itself. The structure of the valve core 2 is also very simple, and also only requires a hollow cavity and a corresponding opening. Therefore, the structures of the housing 1 and the valve core 2 are simplified, the process requirements and process steps in the production process are simplified, and the production cost is relatively low. At the same time, after adopting this structure, the valve core 2 can be installed into the housing 1 from the installation opening 13 of the housing 1 as a whole, instead of being divided into two parts like a traditional valve core, and installed in the housing 1 from two directions. The installation steps of the valve core 2 are simplified, and the integrity of the valve core 2 is relatively strong, and it is not easy to be damaged during use and installation.

It can be seen from the above description that in the structure of this embodiment, neither the housing 1 nor the valve core 2 itself has the function of sealing a certain waterway, and the sealing function depends on the sealing member 3 to achieve. In this embodiment, the seal 3 includes a first seal ring 31, a second seal ring 32, and an inner support ring 33 that are coaxially arranged, wherein the first seal ring fits and seals with the inner wall of the housing 1, and the second seal ring The inner support ring 33 is arranged between the first sealing ring 31 and the second sealing ring 32 to fit and seal with the outer wall of the valve core 2. Since the seal 3 is always kept stationary during the rotation of the valve core 2, the first sealing ring 31 and the second sealing ring 32 can always remain in contact with the inner wall of the housing 1 and the outer wall of the valve core 2. State, the sealing effect is very reliable.

In this embodiment, referring to Figure 3-1, the valve core 2 includes a switching shaft 24, a valve core outer seat 26 and a valve core housing 25; the front end of the switching shaft 24 is a valve stem 23, and the rear end has a hollow cavity 241 , Its side wall has an opening 21 to communicate with the cavity 241; the switching shaft 24 is rotatably installed in the valve core housing 25, and its front end stem 23 extends out of the valve core housing 25, after the valve core outer seat 26 is fitted end.

The side wall of the valve core housing 25 is provided with a stepped hole 251, and the inner support ring 33 is assembled in the stepped hole 251; the valve core housing 25, the inner support ring 33 and the valve core outer seat 26 cooperate to form a first sealing ring 31. The second sealing ring 32 is installed in the groove, the first sealing ring 31 is in close contact with the switching shaft 24, and the second sealing ring 32 is in close contact with the inner wall of the housing 1.

In this embodiment, the opening 21 on the side wall of the switching shaft 24 is a set of two openings 211 and 212 of coaxial side lines.

In order to realize the fixation of the valve core 2 in the housing 1, this embodiment also includes a gland nut 4. The inner wall of the housing 1 has a stepped surface 14, and the outer wall of the valve core 2 has abutting against the stepped surface 14. Fit the limit surface 22; the gland nut 4 is fixed at the installation opening 13 and pushes the valve core 2 until the limit surface 22 abuts the step surface 14.

The gland nut 4 has a relief opening, and the valve stem 23 of the valve core 2 extends out of the housing 1 through the relief opening, and is connected to the operating member 5 in linkage.

In this embodiment, the operating member 5 is a knob, and turning the knob can drive the valve stem 23 to rotate.

The side of the valve core 2 is provided with two openings 21 at intervals along the circumferential direction, so that as long as the knob is rotated through a relatively small angle, the water outlet can be switched. In addition, in order to ensure that the two water outlets 12 will not emit water at the same time, it is necessary to ensure that the two openings 21 will not rotate into the projected area of the seal 3 at the same time. Therefore, the angle between the two openings 21 is equal to the two The angle between the water outlets 12 is different. Specifically, in this embodiment, the angle between the two water outlets 12 is 180°, and the angle between the two openings 21 is 90°.

Example 2

With reference to Figures 6-10, this embodiment provides a water outlet switching valve. The main difference from Embodiment 1 is that: in order to facilitate the processing and molding of the casing and the generalization of the casing, the casing in this embodiment is decomposed into: casing 10 and Spool seat 7

The specific technical solution includes: the valve core 6 and the valve core seat 7;

The valve core seat 7 has a water inlet 71 and at least two water outlet holes 72, and an installation opening 73 for installing the valve core 6; the number of water outlet holes 72 can be freely adjusted according to the number of water outlet terminals, if The water outlet switch valve is used in a combined shower. In order to supply water to the head shower and the hand shower, the number of water outlet holes 72 can be set to two.

The valve core 6 is placed in the valve core seat 7 from the installation opening 73, and the outer wall of the valve core 6 and the inner wall of the valve core seat 7 are sealedly connected at the outer periphery of the water outlet hole 72 by a sealing element 8. So that the water outlet hole 72 can only communicate with the valve core 6 located within the projection area of the seal 8;

The valve core 6 has a hollow cavity, the bottom end of the hollow cavity is in communication with the water inlet 71, and the side of the valve core 6 has an opening 61 that communicates with the hollow cavity; the valve core 6 is subjected to external force on The valve core seat 7 rotates along its own axis. When the opening 61 rotates to the projected area of one of the sealing members 8, the water outlet 72 corresponding to the sealing member 8 passes through the opening and the hollow cavity and enters the water. The hole 71 communicates and discharges water.

It can be seen from the above description that in the structure of this embodiment, the valve core seat 7 and the valve core 6 do not have the function of sealing a certain waterway, and the sealing function depends on the sealing element 8 to achieve. In this embodiment, the sealing element 8 includes a first sealing ring 81 and a second sealing ring 82 that are coaxially arranged, wherein the first sealing ring 81 is in contact with the inner wall of the valve core seat 7 for sealing, and the second sealing ring 82 is The outer wall of the valve core 6 fits and seals. Since the seal 8 is always kept stationary during the rotation of the valve core 6, the first sealing ring 81 and the second sealing ring 82 can always remain in contact with the inner wall of the valve core seat 7 and the outer wall of the valve core 6. In the fitted state, the sealing effect is very reliable.

In order to realize the fixation of the valve core 6 in the valve core seat 7, a gland nut 9 is also included. The inner wall of the valve core seat 7 has a stepped surface, and the outer wall of the valve core 6 abuts against the stepped surface 74 The matching limit surface; the gland nut 8 is fixed at the installation opening 73 and pushes the valve core 6 until the limit surface abuts the step surface.

The gland nut 4 has a relief opening, and the valve stem 62 of the valve core 6 extends out of the valve core seat 7 through the relief opening, and is connected to the operating member in linkage.

In this embodiment, the operating member is a rotating handle, and turning the handle can drive the valve stem 62 to rotate.

In this embodiment, the side surface of the valve core 6 is provided with two openings 61 at intervals along the circumferential direction, so that as long as the handle is rotated through a relatively small angle, the water outlet can be switched. In addition, in order to ensure that the two water outlet holes 72 do not emit water at the same time, it is necessary to ensure that the two openings 61 do not simultaneously rotate into the projection area of the sealing element 8. Therefore, the angle between the two openings 61 is equal to the two The included angles between the water outlet holes 72 are different. Specifically, in this embodiment, the angle between the two outlet holes 72 is 180°, and the angle between the two openings 61 is 90°.

The specific structure of the valve core 2 in this embodiment may adopt the structure disclosed in Embodiment 1.

This embodiment also includes a housing 10 with a hollow cavity and a through hole communicating with the hollow cavity; the valve core seat 7 is placed in the hollow cavity through the through hole, and the housing 1 is in contact with the The corresponding positions of the water inlet hole 71 and the water outlet hole 72 are respectively provided with a water inlet 101 and a water outlet 102, and they are closely connected by a sealing ring 11.

Example 3

A combined shower, using the water outlet switching valve described in Implementation 1 or Implementation 2.

Example 4

A kitchen water outlet terminal, using the water outlet switching valve described in Implementation 1 or Implementation 2.

The above are only preferred embodiments of the present invention, and the scope of the present invention cannot be limited accordingly. That is to say, the equivalent changes and modifications made according to the scope of the patent of the present invention and the content of the specification should still fall within the scope of the present invention.

Industrial applicability

The structure of the outer shell and the valve core of the water outlet switching valve of the present invention are simplified, the corresponding process requirements and process steps in the production process are simplified, and the production cost is relatively low. The invention has a wide application range and good industrial applicability.

Claims (12)

A water outlet switching valve is characterized by comprising: a housing and a valve core; The housing has one water inlet and at least two water outlets, and an installation opening for installing the valve core; The valve core is placed in the housing from the installation opening, and the outer wall of the valve core and the inner wall of the housing are connected in a sealed manner at the outer periphery of the water outlet by a sealing member, so that the water outlet can only be connected to the sealing member. The valve core within the projected area is connected; The valve core has a hollow cavity, the bottom end surface of the hollow cavity is in communication with the water inlet, and the side surface of the valve core has an opening communicating with the hollow cavity; It rotates axially, and when the opening rotates to the projected area of one of the sealing elements, the water outlet corresponding to the sealing element is connected with the water inlet through the opening and the hollow cavity to discharge water. The water outlet switching valve according to claim 1, wherein the sealing element comprises a first sealing ring, a second sealing ring and an inner support ring which are coaxially arranged, wherein the first sealing ring is attached to the inner wall of the housing The second sealing ring is attached to the outer wall of the valve core for sealing, and the inner support ring is arranged between the first sealing ring and the second sealing ring. The water outlet switching valve according to claim 1, further comprising a gland nut, the inner wall of the housing has a stepped surface, and the outer wall of the valve core has a limit that abuts and fits with the stepped surface. Position surface; The gland nut is fixed at the installation opening and pushes the valve core until the limit surface abuts the step surface. The water outlet switching valve according to claim 3, wherein the gland nut has a relief opening, and the valve stem of the valve core extends out of the housing through the relief opening, and is operated with Pieces are linked together. A water outlet switching valve according to claim 1 or 2 or 3 or 4, characterized in that: the valve core includes a switching shaft, a valve core outer seat and a valve core housing; the front end of the switching shaft is a valve stem, and the rear end It has a hollow cavity with an opening on its side wall to communicate with the cavity; the switching shaft is rotatably installed in the valve core housing, the front valve stem extends out of the valve core housing, and the valve core outer seat covers the back end. The water outlet switching valve according to claim 5, characterized in that: a step hole is opened on the side wall of the valve core housing, and the inner support ring is assembled in the step hole; the inner support ring of the valve core housing and the outer valve core The seats are matched to form a first sealing ring and a second sealing ring installation groove, the first sealing ring is in close contact with the switching shaft, and the second sealing ring is in close contact with the inner wall of the housing. A water outlet switching valve is characterized by comprising: a valve core and a valve core seat; The valve core seat has one water inlet hole and at least two water outlet holes, and an installation opening for installing the valve core; The valve core is placed in the valve core seat from the installation opening, and the outer wall of the valve core and the inner wall of the valve core seat are sealedly connected at the outer periphery of the water outlet hole by a seal, so that the water outlet hole can only Connect with the valve core located within the projection area of the seal; The valve core has a hollow cavity, the bottom end surface of the hollow cavity is in communication with the water inlet, and the side of the valve core has an opening communicating with the hollow cavity; the valve core is acted on the valve core seat by an external force The inside rotates along its own axial direction. When the opening rotates to the projected area of one of the sealing elements, the water outlet hole corresponding to the sealing element communicates with the water inlet hole through the opening and the hollow cavity to produce water. The water outlet switching valve according to claim 7, wherein the sealing element comprises a first sealing ring and a second sealing ring which are coaxially arranged, wherein the first sealing ring and the inner wall of the valve core seat are in close contact and sealing , The second sealing ring fits and seals with the outer wall of the valve core. The water outlet switching valve according to claim 7, further comprising a gland nut, the inner wall of the valve core seat has a stepped surface, and the outer wall of the valve core has abutting fit with the stepped surface The limit surface; the gland nut is fixed at the installation opening and pushes the valve core until the limit surface abuts the step surface. The water outlet switching valve according to claim 9, wherein the gland nut has a relief opening, and the valve stem of the valve core extends out of the valve core seat through the relief opening, and Linked with the operating member. A water outlet switching valve according to claim 7 or 8 or 9 or 10, characterized in that it further comprises a housing having a hollow cavity and a through hole communicating with the hollow cavity; the valve core The seat is placed in the hollow cavity through the through hole, and the housing is respectively provided with a water inlet and a water outlet at positions corresponding to the water inlet and the water outlet. A combined shower, characterized in that the water outlet switching valve according to any one of claims 1-11 is used.

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