Valve with compensation function

Abstract

The utility model discloses a valve with compensation function, including valve body, rotation valve core is rotationally arranged in the valve body, valve rod subassembly rotationally arranged on the valve body, is provided with the through flow channel on the rotation valve core, is provided with the installation hole that communicates with the through flow channel on the both ends of valve body respectively, and the compensation connection subassembly sealedly sets up in the installation hole, the compensation connection subassembly includes compensation elastic part, one end of valve seat and rotation valve core sealedly cooperate, the other end of valve seat sealedly sets up on one end of support seat, the other end of support seat sets up in the connecting head, and the connecting head sealedly sets up in the installation hole, and compensation elastic part sets up on the support seat, and one side of compensation elastic part and the end of connecting head cooperate, and the other side of compensation elastic part and support seat cooperate. Set up compensation elastic part between the connecting head and support seat, make valve seat and rotation valve core keep good sealing performance between, in the use, effectively guarantee that valve seat and rotation valve core between will not appear the situation of air leakage and liquid leakage.

Description

Technical Field

[0001] This utility model relates to the field of valves, and in particular to a valve with a compensation function. Background Technology

[0002] In the existing technology, valves need to be opened and closed during use. During the opening and closing process, wear can easily occur at the contact point between the rotating valve core and the valve seat. After wear, the valve has poor sealing performance, resulting in air leakage and liquid leakage. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a valve with a compensation function.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A valve with a compensation function includes a valve body, a rotating valve core, a valve stem assembly, and a compensation connection assembly. The rotating valve core is rotatably disposed within the valve body. The valve stem assembly is rotatably disposed on the valve body and is pulsatorically connected to the rotating valve core. A through flow channel is provided in the middle of the rotating valve core. Mounting holes communicating with the flow channel are respectively provided at both ends of the valve body. The compensation connection assembly is sealed in the mounting holes and cooperates with the rotating valve core.

[0006] The compensation connection assembly includes a compensation elastic element, a connector, a support base, and a valve seat. One end of the valve seat is sealed to the rotary valve core, and the other end of the valve seat is sealed to one end of the support base. The other end of the support base is stepped and its end is located inside the connector. The connector is sealed to the mounting hole. The compensation elastic element is sleeved on the support base. One side of the compensation elastic element mates with the end of the connector, and the other side of the compensation elastic element mates with the stepped surface on the support base.

[0007] Furthermore, the compensating elastic element is a butterfly spring, and at least two sets of superimposed butterfly springs are provided between the stepped surface and the end of the connector.

[0008] Furthermore, a first sealing ring is provided between the inner wall of the connector and the outer wall of the support base. A first retaining ring is provided at both ends of the first sealing ring to cooperate with the first sealing ring. A protective ring is provided between the first retaining ring and the compensating elastic element.

[0009] Furthermore, a second sealing ring is provided on the outer wall of both ends of the rotary valve core to seal with the valve body, and a second retaining ring is provided on one side of the second sealing ring, with the two second sealing rings disposed between the two second retaining rings.

[0010] Furthermore, a third sealing ring is provided between the connector and the valve body.

[0011] Furthermore, the valve stem assembly includes a handle and a transmission rod. The handle is fixedly mounted on one end of the transmission rod, and a transmission groove is provided on the other end of the transmission rod. A transmission protrusion that cooperates with the transmission groove is provided on the end of the rotating valve core.

[0012] Furthermore, the handle is provided with a rotation limiting groove, and the valve body is provided with a limiting pin that cooperates with the rotation limiting groove.

[0013] Furthermore, a fourth sealing ring is provided between the transmission rod and the valve body.

[0014] Furthermore, a mounting nut is provided on the valve body, and the mounting nut is coaxially arranged with the transmission rod.

[0015] Furthermore, a sealing spherical surface is provided on the middle part of the rotary valve core, the flow passage is disposed within the sealing spherical surface, and the valve seat is sealed and fitted with the sealing spherical surface.

[0016] The beneficial effects of this utility model are:

[0017] 1) In this technology, a compensating elastic element is set between the connector and the support base to maintain good sealing performance between the valve seat and the rotating valve core. During use, it effectively ensures that there will be no air or liquid leakage between the valve seat and the rotating valve core.

[0018] 2) In this technology, the transmission rod and the rotating valve core are driven by a transmission groove and a transmission protrusion, which is conducive to the uniform force on the valve seat, effectively transmits torque, and improves the leakage and torque jamming problems that may be caused by the eccentricity or deformation of the integrated valve stem assembly. Attached Figure Description

[0019] Figure 1 This is a diagram of the internal connection structure of this valve;

[0020] In the diagram, 1-valve body, 2-rotating valve core, 3-compensating elastic element, 4-connector, 5-support seat, 6-valve seat, 7-first sealing ring, 8-first retaining ring, 9-protective ring support, 10-second sealing ring, 11-second retaining ring, 12-third sealing ring, 13-handle, 14-transmission rod, 15-transmission groove, 16-transmission protrusion, 17-rotation limit groove, 18-limiting pin, 19-fourth sealing ring, 20-mounting nut, 21-sealing spherical surface. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] See Figure 1 This utility model provides a technical solution:

[0023] A valve with a compensation function includes a valve body 1, a rotating valve core 2, a valve stem assembly, and a compensation connection assembly. The rotating valve core 2 is rotatably disposed within the valve body 1. The valve stem assembly is rotatably disposed on the valve body 1 and is drively connected to the rotating valve core 2. A through flow channel is provided in the middle of the rotating valve core 2. Mounting holes communicating with the flow channel are respectively provided at both ends of the valve body 1. The compensation connection assembly is sealed in the mounting holes and cooperates with the rotating valve core 2. The compensation connection assembly includes a compensation elastic element 3, a connector 4, a support seat 5, and a valve seat 6. One end of the valve seat 6 is sealed in cooperation with the rotating valve core 2, and the other end of the valve seat 6 is sealed on one end of the support seat 5. The other end of the support seat 5 is stepped and its end is disposed within the connector 4. The connector 4 is sealed in the mounting holes. The compensation elastic element 3 is sleeved on the support seat 5. One side of the compensation elastic element 3 cooperates with the end of the connector 4, and the other side of the compensation elastic element 3 cooperates with the stepped surface on the support seat 5. A sealing spherical surface 21 is provided on the middle part of the rotary valve core 2, and the flow passage is set inside the sealing spherical surface 21. The valve seat 6 is sealed and fitted with the sealing spherical surface 21. A third sealing ring 12 is provided between the connector 4 and the valve body 1. The valve body 1 is used to install the rotary valve core 2, and the valve stem assembly is used to control the rotation of the rotary valve core 2 to realize the on and off states. Two sets of compensation connection assemblies are provided, both of which are sealed and fixed on the valve body 1. The compensation connection assemblies and the rotary valve core 2 are sealed and fitted together. One end of the valve seat 6 in the compensation connection assembly is sealed and fitted with the rotary valve core 2, and the other end of the valve seat 6 is installed on the end of the support seat 5. The end of the support seat 5 is provided with a mounting hole that mates with the valve seat 6. The cross-section of the valve seat 6 is annular, and the support seat 5 is set with a stepped shaft, which facilitates the installation of the compensation elastic element 3. The two ends of the compensation elastic element 3 rest on the support seat 5 and the connector 4, respectively, so that the valve seat 6 and the sealing spherical surface 21 always maintain a sealed fit. The connector 4 and the valve body 1 are connected by a thread. The outer end of the connector 4 is connected to the pipeline. The third sealing ring 12 is a rubber sealing ring, which can effectively ensure the sealing between the connector 4 and the valve body 1.

[0024] In some embodiments, the compensating elastic element 3 is a butterfly spring, and at least two sets of superimposed butterfly springs are provided between the stepped surface and the end of the connector 4. The butterfly spring is a prior art technique. Through the addition of multiple butterfly springs, the support seat 5 is constantly subjected to the elastic force of the compensating elastic element 3. The support seat 5 maintains a seal by pressing against the sealing spherical surface 21 through the valve seat 6. Even if wear occurs at the rotating valve core 2 and the valve seat 6, the mating joint remains sealed.

[0025] In some embodiments, a first sealing ring 7 is provided between the inner wall of the connector 4 and the outer wall of the support base 5. A first retaining ring 8 is provided at both ends of the first sealing ring 7 to cooperate with it. A protective ring support 9 is provided between the first retaining ring 8 and the compensating elastic member 3. The first sealing ring 7 is a rubber sealing ring, which can seal the gap between the connector 4 and the support base 5. The first retaining rings 8 on both sides of the first sealing ring 7 protect it. The protective ring support 9 is used to press against the compensating elastic member 3 to prevent the compensating elastic member 3 from affecting the sealing performance of the first sealing ring 7.

[0026] In some embodiments, a second sealing ring 10 is provided on the outer wall of both ends of the rotary valve core 2 to seal against the valve body 1. A second retaining ring 11 is provided on one side of the second sealing ring 10, and the two second sealing rings 10 are disposed between the two second retaining rings 11. Specifically, the rotary valve core 2 has a second sealing ring 10 and a second retaining ring 11 at both ends, as shown below. Figure 1 As shown, both the rotating valve core 2 and the transmission rod 14 are installed from the lower side of the valve body 1. Therefore, both ends of the rotating valve core 2 need to be sealed, and the second retaining ring 11 protects the second sealing ring 10.

[0027] In some embodiments, the valve stem assembly includes a handle 13 and a transmission rod 14. The handle 13 is fixedly mounted on one end of the transmission rod 14, and a transmission groove 15 is provided on the other end of the transmission rod 14. A transmission protrusion 16 that mates with the transmission groove 15 is provided on the end of the rotating valve core 2. A fourth sealing ring 19 is provided between the transmission rod 14 and the valve body 1. The transmission rod 14 and the rotating valve core 2 are driven by the transmission groove 15 and the transmission protrusion 16, which facilitates uniform force distribution on the valve seat 6, effectively transmits torque, and improves the leakage and torque jamming problems that may be caused by eccentricity or deformation in the integrated valve stem assembly. The fourth sealing ring 19 ensures the sealing between the transmission rod 14 and the valve body 1.

[0028] In some embodiments, the handle 13 is provided with a rotation limiting groove 17, and the valve body 1 is provided with a limiting pin 18 that cooperates with the rotation limiting groove 17. Through the cooperation of the rotation limiting groove 17 and the limiting pin 18, the maximum rotation angle of the handle 13 is 90°, preventing the handle 13 from rotating continuously and causing increased wear between the valve seat 6 and the sealing ball surface 21.

[0029] In some embodiments, a mounting nut 20 is provided on the valve body 1, and the mounting nut 20 is coaxially arranged with the transmission rod 14. The upper end of the valve body 1 can pass through the mounting plate and then be fixed to the mounting plate by the mounting nut 20, thereby installing the valve body 1. The valve body 1 and the mounting nut 20 are threadedly engaged, which facilitates disassembly and assembly.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "one end", "top", "middle", "other end", "coaxial", "one side", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "setting", "installation", "connection", "fixing", "hinged" and other such terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A valve with a compensation function, characterized in that: The valve body (1) includes a valve core (2), a valve stem assembly, and a compensation connection assembly. The valve core (2) is rotatably disposed inside the valve body (1). The valve stem assembly is rotatably disposed on the valve body (1) and is connected to the valve core (2) in a transmission manner. A through flow channel is provided in the middle of the valve core (2). Mounting holes communicating with the flow channel are provided at both ends of the valve body (1). The compensation connection assembly is sealed in the mounting holes and cooperates with the valve core (2). The compensation connection assembly includes a compensation elastic element (3), a connector (4), a support base (5), and a valve seat (6). One end of the valve seat (6) is sealed to the rotating valve core (2), and the other end of the valve seat (6) is sealed to one end of the support base (5). The other end of the support base (5) is stepped and its end is located inside the connector (4). The connector (4) is sealed to the mounting hole. The compensation elastic element (3) is sleeved on the support base (5). One side of the compensation elastic element (3) is engaged with the end of the connector (4), and the other side of the compensation elastic element (3) is engaged with the stepped surface on the support base (5).

2. A valve with compensation function according to claim 1, characterized in that: The compensating elastic element (3) is a butterfly spring, and at least two sets of superimposed butterfly springs are provided between the stepped surface and the end of the connector (4).

3. A valve with a compensation function according to claim 1 or 2, characterized in that: A first sealing ring (7) is provided between the inner wall of the connector (4) and the outer wall of the support base (5). A first retaining ring (8) is provided at both ends of the first sealing ring (7) to cooperate with the first sealing ring (7). A protective ring support (9) is provided between the first retaining ring (8) and the compensation elastic member (3).

4. A valve with a compensation function according to claim 1 or 2, characterized in that: The outer walls of both ends of the rotary valve core (2) are provided with second sealing rings (10) that seal with the valve body (1). A second retaining ring (11) is provided on one side of the second sealing ring (10), and the two second sealing rings (10) are disposed between the two second retaining rings (11).

5. A valve with a compensation function according to claim 1 or 2, characterized in that: A third sealing ring (12) is provided between the connector (4) and the valve body (1).

6. A valve with a compensation function according to claim 1 or 2, characterized in that: The valve stem assembly includes a handle (13) and a transmission rod (14). The handle (13) is fixedly mounted on one end of the transmission rod (14), and a transmission groove (15) is provided on the other end of the transmission rod (14). A transmission protrusion (16) that cooperates with the transmission groove (15) is provided on the end of the rotating valve core (2).

7. A valve with compensation function according to claim 6, characterized in that: The handle (13) is provided with a rotation limiting groove (17), and the valve body (1) is provided with a limiting pin (18) that cooperates with the rotation limiting groove (17).

8. A valve with a compensation function according to claim 6, characterized in that: A fourth sealing ring (19) is provided between the transmission rod (14) and the valve body (1).

9. A valve with a compensation function according to claim 6, characterized in that: The valve body (1) is provided with a mounting nut (20), which is coaxially arranged with the transmission rod (14).

10. A valve with a compensation function according to claim 1 or 2, characterized in that: A sealing spherical surface (21) is provided on the middle part of the rotary valve core (2), the flow passage is provided in the sealing spherical surface (21), and the valve seat (6) is sealed to the sealing spherical surface (21).

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