Valve assembly

Abstract

The utility model discloses a valve assembly, which relates to the technical field of valves, and comprises a valve body, an opening and closing assembly and a limiting piece, the valve body is provided with two valve ports in the two sides in the first direction and a flow path communicating the two valve ports. The opening and closing assembly is movably arranged in the second direction, a closing position is arranged on the moving stroke so that the opening and closing assembly can close the flow path, and the communicating position enables the flow path to be communicated; the opening and closing assembly comprises an elastic piece, and the elastic piece is compressed to abut against the valve body so that the opening and closing assembly can tend to move towards the closed position. The limiting piece is at least partially arranged in the flow path and is provided with a limiting part used for being in limiting fit with the opening-closing assembly, so that the opening-closing assembly is located at the communicating position; the limiting piece is elastically arranged to deform under fluid pressure to be disengaged from the opening and closing assembly. According to the technical scheme provided by the utility model, when the fluid pressure is increased, the limiting piece deforms, so that the limiting piece is separated from the opening and closing assembly, and the opening and closing assembly moves to the closed position under the action of the elastic piece to close the flow path.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve component. Background Art

[0002] Currently, in the heating and water supply industry, it is common for indoor pipe leaks to cause property losses to residents due to aging, corrosion, poor construction quality, loose pipe joints, and other reasons.

[0003] Even if a valve is installed on the pipeline, it needs to be manually closed after the user discovers the pipeline leak. If the user does not discover the leak in time, property loss will still occur. Utility Model Content

[0004] The main purpose of the utility model is to provide a valve assembly, which aims to realize automatic closing of the valve after leakage in the external pipeline, so as to prevent property loss of users.

[0005] To achieve the above-mentioned purpose, the utility model proposes a valve assembly for installing a closed pipeline, the valve assembly comprising: a valve body, an opening and closing assembly, and a limit member; the valve body has two valve ports located on both sides in a first direction, and a flow path connecting the two valve ports; the opening and closing assembly is movably installed on the valve body along the second direction, and has a closed position in the movable stroke so that the opening and closing assembly at least partially closes the flow path, and a connecting position so that the flow path is conductive; the opening and closing assembly comprises an elastic member, the elastic member is compressed and abuts against the valve body so that the opening and closing assembly has a tendency to move toward the closed position; the limit member is at least partially arranged on the flow path, and has a limit portion for limiting cooperation with the opening and closing assembly, so that the opening and closing assembly is located in the connecting position; wherein the limit member is elastically arranged, and is used to be deformed by fluid pressure and disengage from the opening and closing assembly.

[0006] In one embodiment, the valve port is located on both sides of the valve body in the first direction, and the valve assembly includes a flow guide, which is fixedly installed on the flow path, and the flow guide includes:

[0007] A first blocking portion extending along the second direction and used to block the liquid from flowing along the first direction;

[0008] A second blocking portion extending along the first direction and used to block the liquid from flowing along the second direction;

[0009] A through hole is provided in the second blocking portion along the second direction and is used for connecting the two valve ports.

[0010] In one embodiment, the via hole is arranged corresponding to the closed position, and the opening and closing component is used to close the via hole.

[0011] In one embodiment, the opening and closing assembly comprises:

[0012] An opening and closing member, comprising a first rod and a head, wherein the first rod extends along the second direction and penetrates the valve body, one end of the first rod is fixedly connected to the head, and the other end extends to the outside of the valve body; the head is used to block the through hole;

[0013] The elastic member comprises a spring, which is sleeved on the first rod portion, one end of which abuts against the head portion, and the other end of which abuts against the inner wall of the valve body.

[0014] In one embodiment, the first rod portion is hollow, and the opening and closing assembly further includes a matching piece, which includes:

[0015] A second rod portion, limitedly disposed in the first rod portion along a second direction;

[0016] The matching portion is fixedly disposed on the second rod portion and passes through the first rod portion to match with the limiting portion.

[0017] In one embodiment, the matching piece further includes:

[0018] The abutment portion is fixedly arranged at one end of the second rod portion away from the head portion, and penetrates the first rod portion to abut against the outer surface of the valve body in the extending direction of the first rod portion.

[0019] In one embodiment, the opening and closing assembly further comprises a rotating shaft, which is fixedly disposed in the first rod portion along the third direction and is rotatably connected to the second rod portion so that the matching portion and the abutting portion can move in the first direction;

[0020] The first direction, the second direction and the third direction are orthogonal to each other.

[0021] In one embodiment, the limiting portion includes a first ball hook, and the matching portion includes a second ball hook; or,

[0022] The limiting portion includes a first magnet, and the matching portion includes a second magnet.

[0023] In one embodiment, the head is configured to be tapered in a direction toward the via hole.

[0024] In one embodiment, the limiting member includes a plate portion, and the plate portion is disposed in the flow path.

[0025] The technical solution of the utility model adopts a limiting piece to cooperate with the opening and closing component. When the fluid pressure increases, the limiting piece is deformed and thus disengaged from the opening and closing component. The opening and closing component moves to a closed position under the action of an elastic piece to block the flow path, so that when the external piping system leaks, the valve component automatically closes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 This is a structural schematic diagram of an embodiment of a valve assembly provided by the utility model.

[0028] Description of Figure Numbers:

[0029] 100. Valve assembly; 1. Valve body; 11. Valve port; 12. Flow path; 2. Opening and closing assembly; 21. Elastic member; 211. Spring; 22. Opening and closing member; 221. First rod portion; 222. Head portion; 23. Fitting member; 231. Second rod portion; 232. Fitting portion; 233. Abutting portion; 24. Rotating shaft; 3. Limiting member; 31. Limiting portion; 32. Plate portion; 4. Flow guide member; 41. First blocking portion; 42. Second blocking portion; 43. Through hole.

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0034] Currently, in the heating and water supply industry, due to the aging and corrosion of household pipes and the loosening of pipe fittings due to poor construction quality, water leakage in the indoor pipes causes property losses to residents. Even if valves are installed on the pipes, they need to be manually closed after the user finds the pipe leaks. If the user does not find the leak in time, it will still cause property losses.

[0035] The utility model provides a valve component.

[0036] See also Figure 1 In one embodiment of the utility model, the valve assembly 100 comprises: a valve body 1, an opening and closing assembly 2, and a stopper 3; the valve body 1 has two valve ports 11 located on both sides in a first direction, and a flow path 12 connecting the two valve ports 11; the opening and closing assembly 2 is movably mounted on the valve body 1 along a second direction, and has a closed position in the movable stroke so that the opening and closing assembly 2 at least partially closes the flow path 12, and a connecting position so that the flow path 12 is conductive; the opening and closing assembly 2 comprises an elastic member 21, the elastic member 21 is compressed and abuts against the valve body 1 so that the opening and closing assembly 2 has a tendency to move toward the closed position; the stopper 3 is at least partially arranged on the flow path 12, and has a stopper 31 for limiting and cooperating with the opening and closing assembly 2, so that the opening and closing assembly 2 is located in the connecting position; wherein, the stopper 3 is elastically arranged, and is used to be deformed by fluid pressure and disengage from the opening and closing assembly 2.

[0037] The main concept of the technical solution of the utility model is based on the fact that in a closed pipeline system, when a pipeline leaks, the liquid in the pipeline will start to flow, generate kinetic energy and increase pressure. Therefore, a valve body 1 assembly is designed to be installed in the closed pipeline, which automatically closes when the pressure increases, and closes the pipeline in time to prevent large property losses. Specifically, the technical solution of the utility model is provided with two valve ports 11 on both sides of the valve body 1 in the first direction, and a flow path 12 connecting the two valve ports 11, so that the liquid flows along the first direction on at least part of the flow path 12. The opening and closing assembly 2 is movably installed on the valve body 1 in the second direction, and has a closed position and a connected position in the movable stroke in the second direction. The opening and closing assembly 2 moves to the closed position to block the flow path 12 to achieve the closure of the valve assembly 100. The opening and closing assembly 2 moves to the connected position, at which time the flow path 12 is in a conducting state, and the valve assembly 100 is also in an open state. In order to make the opening and closing component 2 in the connection position when the pressure is in a normal state, the valve assembly 100 includes a limiter 3 for limiting the opening and closing component 2, and limiting the opening and closing component 2 in the connection position under normal conditions. Further, in order to enable the opening and closing component 2 to move to the closed position when the pressure increases, it is first necessary to disengage the limiter 3 from the opening and closing component 2 when the fluid pressure increases, and then it is also necessary to move the opening and closing component 2 to the closed position after disengaging the limiter. In order to achieve this effect, the corresponding structure is: the limiter 3 is elastically arranged and at least partially arranged in the flow path 12. After the fluid pressure increases, the limiter 3 produces a large deformation and thus disengages from the opening and closing component 2. In addition, the opening and closing component 2 includes an elastic member 21, which is compressed and abuts against the valve body 1 so that the opening and closing component 2 has a tendency to move toward the closed position. After disengaging the limiter, the opening and closing component 2 moves to the closed position under the action of the elastic member 21.

[0038] Since the valve cavity of the valve body 1 is relatively large, in order for the opening and closing component 2 to be able to easily cut off the flow path 12 and ensure the sealing after cutting off, the valve component 100 includes a guide member 4, which is fixedly installed on the flow path 12, and the guide member 4 includes a first blocking portion 41 and a second blocking portion 42, the first blocking portion 41 extends along the second direction, and is used to block the liquid from flowing along the first direction; the second blocking portion 42 extends along the first direction, and is used to block the liquid from flowing along the second direction; at this time, under the action of the first blocking portion 41 and the second blocking portion 42, the liquid is blocked in the valve body 1, and the inside of the valve body 1 is closed, in order to make the flow path 12 conductive, at this time, a through hole 43 is set on the second blocking portion 42, and the through hole 43 is set through in the second direction. At this time, it is only necessary to block the through hole 43 when the opening and closing component 2 moves to the closed position to close the valve. The closure of the hole is easy to achieve. In order to achieve the closure of the through hole 43, the through hole 43 needs to be set corresponding to the closed position, and the opening and closing component 2 is used to close the through hole 43.

[0039] In one embodiment, specifically, the opening and closing component 2 includes: an opening and closing member 22 and an elastic member 21. The opening and closing member 22 has a first rod portion 221 and a head portion 222. The first rod portion 221 extends along the second direction and penetrates the valve body 1, so the opening and closing member 22 can move along the second direction. One end is fixedly connected to the head portion 222, and the head portion 222 is used to block the through hole 43. The other end extends to the outside of the valve body 1; the end extending outside the valve body 1 is used for manual operation and manual reset, so that the opening and closing member 2 can be in the connected position again. The elastic member 21 includes a spring 211, which is sleeved on the first rod portion 221, one end abuts against the head portion 222, and the other end abuts against the inner wall of the valve body 1. When the opening and closing member 2 and the limiting member 3 release the limiting cooperation, the spring 211 pushes the opening and closing member 22 to move toward the through hole 43 so that the head portion 222 blocks the through hole 43.

[0040] In order to limit the opening and closing member 22 to the connected position, the first rod portion 221 is hollow, and the opening and closing assembly 2 also includes a matching member 23, which includes a second rod portion 231 and a matching portion 232. The second rod portion 231 is limitedly arranged in the first rod portion 221 along the second direction, that is, the second rod portion 231 and the first rod portion 221 move synchronously in the second direction. The matching portion 232 is fixedly arranged on the second rod portion 231, and penetrates the first rod portion 221 to cooperate with the limiting portion 31. The matching portion 232 cooperates with the limiting portion 31, so that the second rod portion 231 fixedly connected to the matching portion 232 is limitedly arranged in the second direction, and the first rod portion 221 is also limitedly arranged in the second direction. In addition, the opening and closing member 22 is limited to the communicating position and has an abutment portion 233 , which is a part of the fitting member 23 , abuts and is fixedly arranged at an end of the second rod portion 231 away from the head portion 222 , and penetrates the first rod portion 221 to abut against the outer surface of the valve body 1 in the extension direction of the first rod portion 221 .

[0041] In order to enable the matching portion 232 and the abutting portion 233 to simultaneously release the restriction on the movement of the opening and closing member 22 in the second direction, the opening and closing assembly 2 also includes a rotating shaft 24, which is fixedly arranged in the first rod portion 221 along the third direction and is rotatably connected to the second rod portion 231 so that the matching portion 232 and the abutting portion 233 can move in the first direction; wherein the first direction, the second direction, and the third direction are orthogonal to each other.

[0042] The specific manner of the limiting part 31 and the matching part 232 includes: the limiting part 31 is set as a first ball head hook, and the matching part 232 is set as a second ball head hook; or, the limiting part 31 is set as a first magnet, and the matching part 232 is set as a second magnet.

[0043] In order to make the head 222 properly block the through hole 43, the head 222 is gradually contracted in the direction toward the through hole 43, and the head 222 partially extends into the through hole 43. In addition, the through hole 43 is expanded in the direction toward the head 222, corresponding to the head 222, so that the hole wall fits with the side wall of the head 222, and the sealing is better, which plays a better blocking role.

[0044] In order to allow the limiter 3 to be subjected to a greater force and thus deformed when the fluid pressure increases, the limiter 3 includes a plate portion 32, and the plate portion 32 is arranged in the flow path 12, so that the elastic member 21 is bent by the force, so that the limiter 31 moves away from the opening and closing component 2 and disengages from the opening and closing component 2.

[0045] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A valve assembly for installing a closed pipeline, characterized in that: include: A valve body having two valve ports located on both sides in a first direction, and a flow path connecting the two valve ports; An opening and closing assembly is movably mounted on the valve body along the second direction, and has a closed position in the movable stroke so that the opening and closing assembly at least partially closes the flow path, and a connecting position so that the flow path is connected; the opening and closing assembly includes an elastic member, the elastic member is compressed and abuts against the valve body so that the opening and closing assembly has a tendency to move toward the closed position; A limiting member, at least partially disposed in the flow path, having a limiting portion for limiting cooperation with the opening and closing component so that the opening and closing component is located at the communication position; Wherein, the limiting member is elastically arranged and is used to be deformed by fluid pressure and to be disengaged from the opening and closing assembly.

2. The valve assembly according to claim 1, characterized in that The valve port is located on both sides of the valve body in the first direction. The valve assembly includes a flow guide, which is fixedly installed on the flow path. The flow guide includes: A first blocking portion extending along the second direction and used to block the liquid from flowing along the first direction; A second blocking portion extending along the first direction and used to block the liquid from flowing along the second direction; A through hole is provided in the second blocking portion along the second direction and is used for connecting the two valve ports.

3. The valve assembly according to claim 2, characterized in that The via hole is arranged corresponding to the closed position, and the opening and closing component is used to close the via hole.

4. The valve assembly according to claim 3, characterized in that The opening and closing assembly comprises: An opening and closing member, comprising a first rod and a head, wherein the first rod extends along the second direction and penetrates the valve body, one end of the first rod is fixedly connected to the head, and the other end extends to the outside of the valve body; the head is used to block the through hole; The elastic member comprises a spring, which is sleeved on the first rod portion, one end of which abuts against the head portion, and the other end of which abuts against the inner wall of the valve body.

5. The valve assembly according to claim 4, characterized in that The first rod portion is hollow, and the opening and closing assembly further includes a matching piece, which includes: A second rod portion, limitedly disposed in the first rod portion along a second direction; The matching portion is fixedly disposed on the second rod portion and passes through the first rod portion to match with the limiting portion.

6. The valve assembly according to claim 5, characterized in that The matching piece also includes: The abutment portion is fixedly arranged at one end of the second rod portion away from the head portion, and penetrates the first rod portion to abut against the outer surface of the valve body in the extending direction of the first rod portion.

7. The valve assembly according to claim 6, characterized in that The opening and closing assembly further includes a rotating shaft, which is fixedly disposed in the first rod portion along the third direction and is rotatably connected to the second rod portion so that the matching portion and the abutting portion can move in the first direction; The first direction, the second direction and the third direction are orthogonal to each other.

8. The valve assembly according to claim 5, characterized in that The limiting portion includes a first ball head hook, and the matching portion includes a second ball head hook; or, The limiting portion includes a first magnet, and the matching portion includes a second magnet.

9. The valve assembly according to claim 4, characterized in that The head is arranged to be tapered in a direction toward the through hole.

10. The valve assembly according to claim 1, wherein: The limiting member includes a plate portion, and the plate portion is arranged on the flow path.

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