Combined sealing ring structure for ball valve

Abstract

The utility model relates to the technical field of sealing ring structures, and discloses a combined sealing ring structure for a ball valve, which comprises a valve body, a handle and connecting ports, the handle is fixedly arranged on the valve body, and the connecting ports are arranged at the end parts of two sides of the valve body; sealing assemblies, clamping assemblies and buffering assemblies are fixedly arranged on the valve body, the sealing assemblies are arranged on the two sides of the ball body, the clamping assemblies are arranged on the sealing assemblies, and the buffering assemblies are arranged in the sealing assemblies; the sealing assembly, the clamping assembly and the buffering assembly are arranged on the valve body, the buffering performance is improved, the end of the sealing piece in the sealing assembly is fixed to the connecting base and provided with the clinging heads to be tightly attached to the two sides of the ball body, the sealing ring of the clamping assembly is arranged in the connecting base, and the wedge-shaped piece is tightly attached to the ball body. A buffer head and a sleeve in the buffer assembly are fixed to the inner side of a sealing piece, a spring is embedded outside the sleeve, and when friction force and impact force are generated between a ball and a sealing gasket, the buffer assembly can buffer external force, and abrasion of the sealing gasket is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring structure technology, specifically a combined sealing ring structure for ball valves. Background Technology

[0002] A patent document with publication number CN209354691U discloses a combined sealing ring for a ball valve and a ball valve, relating to the field of ball valve sealing technology. The combined sealing ring for the ball valve is located between the ball valve body and the dynamic sealing ring, including a V-shaped sealing ring and multiple O-rings. The multiple O-rings are tightly fitted together and form a row along the axial direction. One side of the V-shaped sealing ring abuts against the ball valve body and forms multiple first sealing parts for enhancing the seal. The other side of the V-shaped sealing ring abuts against the multiple O-rings and forms multiple second sealing parts for enhancing the seal, thereby alleviating the technical problem of incomplete sealing of the ball valve.

[0003] However, existing gaskets generally have shortcomings. Some gaskets lack buffer components. In actual use, the ball valve is frequently opened and closed, and the ball and gasket will generate large friction and impact forces. Due to the lack of buffer components, the gasket may not be able to effectively cope with these external forces, which can easily lead to increased wear of the gasket and thus affect the sealing performance.

[0004] Therefore, this utility model proposes a combined sealing ring structure for ball valves to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a combined sealing ring structure for ball valves to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined sealing ring structure for a ball valve, comprising a valve body, a handle, and a connection port, wherein the handle is fixedly disposed on the valve body, and the connection port is disposed at both ends of the valve body;

[0007] The valve body is fixedly provided with a sealing component, a snap-fit ​​component, and a buffer component. The sealing component is located on both sides of the ball, the snap-fit ​​component is located on the sealing component, and the buffer component is located inside the sealing component.

[0008] Preferably, the sealing plate in the sealing assembly is fixedly mounted on the connecting seat, and the connecting seat is fixedly mounted in the valve body.

[0009] Preferably, the sealing sheet in the sealing assembly has a sealing head on the other end, and the sealing head is in close contact with both sides of the sphere.

[0010] Preferably, the sealing ring in the snap-fit ​​assembly is fixedly disposed inside the connector, and a wedge-shaped piece is provided at the end of the sealing ring, the wedge-shaped piece being adapted to fit tightly against the ball.

[0011] Preferably, the buffer head in the buffer assembly is fixedly disposed inside the sealing sheet, and the buffer head is adapted to slide and fit into the sleeve.

[0012] Preferably, the other end of the sleeve in the buffer assembly is fixedly disposed inside the sealing sheet on the other side, and a spring is fixedly embedded on the outside of the sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a sealing component, a snap-fit ​​component, and a buffer component on the valve body, the performance of the buffer component is improved. In the sealing component, the end of the sealing plate is fixed to the connecting seat and a tight-fitting head is provided to fit tightly against both sides of the ball, effectively preventing media leakage and ensuring a good sealing effect. In the snap-fit ​​component, the sealing ring is set inside the connecting seat, and the wedge-shaped plate at the end fits tightly against the ball, further enhancing the sealing performance and preventing the media from seeping from the connection. The buffer component plays an important role. The buffer head is fixed inside the sealing plate and slidably embedded in the sleeve. A spring is embedded on the outside of the sleeve. When the ball valve is frequently opened and closed, the ball and the sealing gasket generate friction and impact forces. The buffer component can effectively buffer these external forces, reduce the wear of the sealing gasket, extend its service life, stabilize the sealing performance, reduce maintenance costs, and enable the ball valve to operate stably and reliably under various working conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the sealing assembly structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the snap-fit ​​assembly structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the buffer component of this utility model.

[0018] In the diagram: Valve body 1, handle 2, connection port 3, sealing assembly 4, snap-fit ​​assembly 5, buffer assembly 6, ball 7, sealing plate 401, connecting seat 402, tight-fitting head 403, sealing ring 501, wedge plate 502, buffer head 601, sleeve 602, spring 603. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this utility model, not all embodiments, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. The technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0020] Example 1: Please refer to Figures 1 to 2 A combined sealing ring structure for a ball valve includes a valve body 1, a handle 2, and a connection port 3. The handle 2 is fixedly installed on the valve body 1, and the connection port 3 is located at both ends of the valve body 1. The valve body 1 is provided with a sealing component 4, a snap-fit ​​component 5, and a buffer component 6. The sealing component 4 is located on both sides of a ball 7, the snap-fit ​​component 5 is located on the sealing component 4, and the buffer component 6 is located inside the sealing component 4.

[0021] The end of the sealing plate 401 in the sealing assembly 4 is fixedly mounted on the connecting seat 402, and the connecting seat 402 is fixedly mounted inside the valve body 1.

[0022] In use, the valve body 1 serves as the main body of the entire structure, supporting and connecting various components. The handle 2 is used to control the opening and closing of the ball valve. The user rotates the handle 2 to drive the ball 7 to rotate, thereby controlling the flow of fluid. The connection port 3 is responsible for connecting to the pipeline, allowing fluid to enter and exit the valve body 1. The sealing plate 401 in the sealing assembly 4 is fixed inside the valve body 1 through the connecting seat 402, providing basic sealing protection for both sides of the ball 7, preventing fluid leakage from the gap between the ball 7 and the valve body 1, and ensuring that the entire ball valve has basic sealing performance in the initial state.

[0023] Example 2: Based on Example 1, please refer to... Figures 2 to 3 The sealing sheet 401 in the sealing assembly 4 has a pressing head 403 on the other end, which is pressed against both sides of the ball 7.

[0024] The sealing ring 501 in the snap-fit ​​assembly 5 is fixedly installed inside the connecting seat 402. The end of the sealing ring 501 is provided with a wedge-shaped piece 502, which is adapted to fit tightly against the ball 7.

[0025] In use, the sealing head 403 on the other side of the sealing disc 401 is tightly fitted to both sides of the ball 7, and the sealing disc 401 is in a slightly inclined state. All the sealing discs 401 are set to a compressed state, and the end of the previous sealing disc 401 presses against the other end of the next sealing disc 401, similar to a petal shape, which further enhances the sealing effect and effectively prevents fluid from seeping out from the contact area between the sealing disc 401 and the ball 7. In the snap-fit ​​assembly 5, the sealing ring 501 located inside the connecting seat 402 has a wedge-shaped piece 502 at its end that fits tightly against the ball 7. When the ball 7 rotates, the wedge-shaped piece 502 can adapt to the surface of the ball 7, fill any possible tiny gaps, strengthen the sealing performance at the connection, greatly reduce the risk of fluid leakage, and improve the sealing performance of the ball valve during operation.

[0026] Example 3: Based on Example 2, please refer to... Figures 3 to 4 The buffer head 601 in the buffer assembly 6 is fixedly installed inside the sealing sheet 401, and the buffer head 601 is adapted to slide and fit into the sleeve 602.

[0027] The other end of the sleeve 602 in the buffer assembly 6 is fixedly disposed inside the sealing sheet 401 on the other side, and a spring 603 is fixedly embedded on the outside of the sleeve 602.

[0028] During use, when the ball valve is frequently opened and closed, friction and impact forces are generated between the ball 7 and the sealing plate 401. The buffer assembly 6 plays a key role. The buffer head 601 is fixed inside the sealing plate 401 and slidably embedded in the sleeve 602. The other side of the sleeve 602 is fixed inside the sealing plate 401. The spring 603 embedded on the outside can absorb and buffer these external forces. Under the action of external forces, the buffer head 601 slides in the sleeve 602 and compresses the spring 603. At this time, the spring 603 exerts its elastic potential energy and contracts, which reduces the squeezing force of the ball 7 on the sealing plate 401, thereby reducing the direct impact on the sealing plate 401, reducing the wear of the sealing gasket, extending its service life, and stabilizing the sealing performance of the ball valve.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined sealing ring structure for a ball valve, comprising a valve body (1), a handle (2), and a connection port (3), wherein the handle (2) is fixedly provided on the valve body (1), and the connection port (3) is provided at both ends of the valve body (1); Its features are: It includes a sealing component (4), a snap-fit ​​component (5), and a buffer component (6). The sealing component (4) is disposed on both sides of the sphere (7), the snap-fit ​​component (5) is disposed on the sealing component (4), and the buffer component (6) is disposed inside the sealing component (4).

2. The combined sealing ring structure for a ball valve according to claim 1, characterized in that: The sealing plate (401) in the sealing assembly (4) is fixedly mounted on the connecting seat (402), and the connecting seat (402) is fixedly mounted inside the valve body (1).

3. The combined sealing ring structure for a ball valve according to claim 2, characterized in that: The sealing sheet (401) in the sealing assembly (4) has a pressing head (403) on the other end, and the pressing head (403) is pressed against both sides of the ball (7).

4. The combined sealing ring structure for a ball valve according to claim 1, characterized in that: The sealing ring (501) in the snap-fit ​​assembly (5) is fixedly installed inside the connecting seat (402). A wedge-shaped piece (502) is provided at the end of the sealing ring (501), and the wedge-shaped piece (502) is adapted to fit tightly against the ball (7).

5. The combined sealing ring structure for a ball valve according to claim 1, characterized in that: The buffer head (601) in the buffer assembly (6) is fixedly disposed inside the sealing sheet (401), and the buffer head (601) is adapted to slide and fit into the sleeve (602).

6. The combined sealing ring structure for a ball valve according to claim 5, characterized in that: The other end of the sleeve (602) in the buffer assembly (6) is fixedly disposed inside the sealing sheet (401) on the other side, and a spring (603) is fixedly embedded on the outside of the sleeve (602).

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