Rubber sealing ball valve
Through the design of the three-stage valve body and rubber valve seat, combined with the cooperation of the spring and the positioning rod, the problem of unstable flow of the ball valve under the impact of fluid is solved, and the stable adjustment and sealing of the ball valve are achieved.
Patent Information
- Application Number
- CN202421865877.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-04
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-04
AI Technical Summary
When the existing ball valves have high fluid pressure, the ball is prone to rotate due to fluid impact, affecting the flow adjustment accuracy.
The three-stage valve body structure is adopted, combined with the rubber valve seat and rotating shaft design, and the rotating shaft is driven to rotate the ball through the handle, and the stable positioning of the ball is achieved by using the cooperation of the spring and the positioning rod to avoid the flow change under the impact of the fluid.
Improves the sealing and adjustment stability of the ball valve, reduces processing difficulty and simplifies the assembly process.
Smart Images
Figure CN223076293U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ball valves, in particular to a rubber-sealed ball valve. Background Technique
[0002] A ball valve is a valve in which the opening and closing part (sphere) is driven by a valve stem and rotates around the axis of the ball valve. It can also be used for the regulation and control of fluids. Among them, the hard-sealed V-type ball valve has a strong shearing force between its V-type ball core and the metal valve seat surfacing with hard alloy, and is especially suitable for media containing fibers, tiny solid particles, etc.
[0003] As we know, when the fluid pressure is high, the fluid has an impact on the sphere of the ball valve, which can easily cause the sphere to rotate and affect the fluid flow rate, thus affecting the regulation accuracy of the ball valve. To solve this problem, we propose a rubber-sealed ball valve. Summary of the Invention
[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a rubber-sealed ball valve.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A rubber-sealed ball valve includes a valve body. A sphere is rotatably sleeved inside the valve body. An annular card slot is formed on the inner wall of the valve body. An annular rubber valve seat is sleeved in the annular card slot. A first rotating shaft is rotatably sleeved on the valve body. The first rotating shaft is fixedly sleeved inside the sphere. A positioning groove arranged in a circumferential array is formed at the top of the valve body. A handle is fixed at the top end of the first rotating shaft. An L-shaped lifting seat is slidably sleeved on the first rotating shaft. A spring is sleeved on the first rotating shaft. A strip-shaped hole is formed on the side of the lifting seat. The handle is located in the strip-shaped hole. A block with a sloped top is slidably installed on the handle. The block is located in the strip-shaped hole. The top of the strip-shaped hole is set to be a slope matching the top of the block. A positioning rod is fixed at the bottom of the lifting seat. The positioning rod is inserted into the positioning groove.
[0007] Preferably, the valve body includes a first valve body, a second valve body, and a third valve body. The first valve body and the third valve body are located at both ends of the second valve body. The first valve body, the second valve body, and the third valve body are fixedly connected by a bolt assembly.
[0008] Preferably, a second rotating shaft is fixed at the bottom of the sphere. The second rotating shaft is rotatably sleeved inside the valve body.
[0009] Preferably, a quadrangular prism is fixed at the bottom end of the first rotating shaft. A rectangular groove is formed at the top of the sphere. The quadrangular prism is inserted into the rectangular groove.
[0010] Preferably, a pull ring is fixed to one end of the shifting block through a pull rod.
[0011] Preferably, a limiting block for limiting the shifting block is fixed to one end of the handle.
[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0013] 1. In the utility model, the valve body adopts a three-section structure, which reduces the processing difficulty, makes production more convenient, and is more convenient for assembly. The rubber valve seat has elasticity and can closely adhere to the sphere, thereby improving the tightness of the sphere.
[0014] 2. In the utility model, the first rotating shaft can be driven to rotate by the handle, and the first rotating shaft drives the sphere to rotate, so as to realize the adjustment of the sphere. A pull ring is fixed to one end of the shifting block through a pull rod, a limiting block for limiting the shifting block is fixed to one end of the handle, the pull ring drives the shifting block to slide through a connecting rod, the shifting block pushes the lifting seat to move, at this time the spring contracts, and the positioning rod is pulled out from the positioning groove. At this time, the handle can be rotated. After rotating to the specified position, the pull ring is released. Under the restoring force of the spring, the lifting seat moves downward. At this time, the positioning rod is inserted into the positioning groove corresponding to this position, so as to realize the positioning of the handle. At this time, it can avoid the transmission of the sphere caused by the impact of the fluid and change the flow rate, ensuring the stability of the ball valve adjustment. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a cross-sectional view of a rubber-sealed ball valve proposed by the utility model;
[0016] Figure 2 is Figure 1 a partial structural schematic diagram of
[0017] Figure 3 is a cross-sectional view of a rubber valve seat of a rubber-sealed ball valve proposed by the utility model.
[0018] In the figure: 1 first valve body, 2 second valve body, 3 third valve body, 4 bolt assembly, 5 sphere, 6 second rotating shaft, 7 rubber valve seat, 8 first rotating shaft, 9 handle, 10 quadrangular prism, 11 positioning groove, 12 spring, 13 limiting block, 14 shifting block, 15 lifting seat, 16 pull rod, 17 pull ring, 18 positioning rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0020] Refer to Figure 1 、 Figure 2 、Figure 3 , a rubber-sealed ball valve, comprising a valve body. The valve body includes a first valve body 1, a second valve body 2, and a third valve body 3. The first valve body 1 and the third valve body 3 are located at both ends of the second valve body 2. The first valve body 1, the second valve body 2, and the third valve body 3 are fixedly connected by a bolt assembly 4. The valve body adopts a three-section structure, reducing the processing difficulty, making production more convenient, and assembly more convenient. A ball 5 is rotatably sleeved inside the valve body. An annular clamping groove is formed on the inner wall of the valve body, and an annular rubber valve seat 7 is sleeved in the annular clamping groove. The rubber valve seat 7 has elasticity and can closely adhere to the ball 5, thereby improving the tightness of the ball 5. A first rotating shaft 8 is rotatably sleeved on the valve body. The first rotating shaft 8 is fixedly sleeved inside the ball 5. A positioning groove 11 arranged in a circumferential array is formed at the top of the valve body. A handle 9 is fixed at the top end of the first rotating shaft 8. The first rotating shaft 8 can be driven to rotate by the handle 9, and the first rotating shaft 8 drives the ball 5 to rotate, thereby realizing the adjustment of the ball 5. An L-shaped lifting seat 15 is slidably sleeved on the first rotating shaft 8. A spring 12 is sleeved on the first rotating shaft 8. A strip-shaped hole is formed on the side of the lifting seat 15. The handle 9 is located in the strip-shaped hole. A slider 14 with a sloped top is slidably installed on the handle 9. The slider 14 is located in the strip-shaped hole. The top of the strip-shaped hole is set as a slope matching the top of the slider 14. A positioning rod 18 is fixed at the bottom of the lifting seat 15. The positioning rod 18 is inserted into the positioning groove 11. One end of the slider 14 is fixed with a pull ring 17 through a pull rod 16. A limiting block 13 for limiting the slider 14 is fixed at one end of the handle 9. The pull ring 17 drives the slider 14 to slide through the connecting rod 16. The slider 14 pushes the lifting seat 15 to move. At this time, the spring 12 contracts, and the positioning rod 18 is pulled out of the positioning groove 11. At this time, the handle 9 can be rotated. When rotated to the specified position, the pull ring 17 is released. Under the restoring force of the spring 12, the lifting seat 15 moves downward. At this time, the positioning rod 18 is inserted into the positioning groove 11 corresponding to this position, thereby realizing the positioning of the handle 9. At this time, it can avoid the transmission of the ball 5 caused by the impact of the fluid and change the flow rate, ensuring the stability of the ball valve adjustment.
[0021] Refer to Figure 2 , a second rotating shaft 6 is fixed at the bottom of the ball 5. The second rotating shaft 6 is rotatably sleeved inside the valve body. A quadrangular prism 10 is fixed at the bottom end of the first rotating shaft 8. A rectangular groove is formed at the top of the ball 5. The quadrangular prism 10 is inserted into the rectangular groove.
[0022] Working principle: The valve body adopts a three-section structure, which reduces the processing difficulty, makes production more convenient, and is more convenient to assemble. The rubber valve seat 7 has elasticity and can closely adhere to the sphere 5, thereby improving the sealing performance of the sphere 5. The first rotating shaft 8 can be driven to rotate by the handle 9, and the first rotating shaft 8 drives the sphere 5 to rotate, thereby realizing the adjustment of the sphere 5. One end of the shifting block 14 is fixed with a pull ring 17 through a pull rod 16, and one end of the handle 9 is fixed with a limiting block 13 for limiting the shifting block 14. The pull ring 17 drives the shifting block 14 to slide through the connecting rod 16, and the shifting block 14 pushes the lifting seat 15 to move. At this time, the spring 12 contracts, and the positioning rod 18 is pulled out of the positioning groove 11. At this time, the handle 9 can be rotated. After rotating to the specified position, the pull ring 17 is released. Under the restoring force of the spring 12, the lifting seat 15 moves downward. At this time, the positioning rod 18 is inserted into the positioning groove 11 corresponding to this position, thereby realizing the positioning of the handle 9. At this time, it can avoid the transmission of the sphere 5 caused by the impact of the fluid and change the flow rate, ensuring the stability of the ball valve adjustment.
[0023] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A rubber-sealed ball valve, comprising a valve body, characterized in that, A sphere (5) is rotatably sleeved inside the valve body. An annular clamping groove is formed on the inner wall of the valve body. An annular rubber valve seat (7) is sleeved in the annular clamping groove. A first rotating shaft (8) is rotatably sleeved on the valve body. The first rotating shaft (8) is fixedly sleeved inside the sphere (5). Positioning grooves (11) arranged in a circumferential array are formed at the top of the valve body. A handle (9) is fixed at the top end of the first rotating shaft (8). An L-shaped lifting seat (15) is slidably sleeved on the first rotating shaft (8). A spring (12) is sleeved on the first rotating shaft (8). A strip-shaped hole is formed on the side of the lifting seat (15). The handle (9) is located inside the strip-shaped hole. A slider (14) with a sloped top is slidably installed on the handle (9). The slider (14) is located inside the strip-shaped hole. The top of the strip-shaped hole is provided with a slope matching the top of the slider (14). A positioning rod (18) is fixed at the bottom of the lifting seat (15). The positioning rod (18) is inserted into the positioning groove (11).
2. The rubber-sealed ball valve according to claim 1, characterized in that, The valve body includes a first valve body (1), a second valve body (2), and a third valve body (3). The first valve body (1) and the third valve body (3) are located at both ends of the second valve body (2). The first valve body (1), the second valve body (2), and the third valve body (3) are fixedly connected by bolt assemblies (4).
3. A rubber-sealed ball valve according to claim 1, characterized in that, A second rotating shaft (6) is fixed at the bottom of the sphere (5). The second rotating shaft (6) is rotatably sleeved inside the valve body.
4. A rubber-sealed ball valve according to claim 1, characterized in that, A quadrangular prism (10) is fixed at the bottom end of the first rotating shaft (8). A rectangular groove is formed at the top of the sphere (5). The quadrangular prism (10) is inserted into the rectangular groove.
5. A rubber-sealed ball valve according to claim 1, characterized in that, One end of the slider (14) is fixed with a pull ring (17) through a pull rod (16).
6. A rubber-sealed ball valve according to claim 1, characterized in that, A limiting block (13) for limiting the slider (14) is fixed at one end of the handle (9).