A bidirectional sealing eccentric half-ball valve

Abstract

The utility model relates to the technical field of valve body discloses a kind of bidirectional sealing eccentric half-ball valve, including valve body, the valve body top end is fixedly connected with support plate, the support plate top end is fixedly connected with fixed frame, the fixed frame inner wall is rotatably connected with the rotation bar one, the rotation bar one outer wall is connected with the rotation bar two by limiting component, the rotation bar two bottom end is fixedly connected with sealing ball, the valve body left and right two ends are fixedly connected with the connecting pipe one, the sealing ball is arranged in the inner wall of two connecting pipes one, two The outer wall of the proximal end of the connecting pipe one is connected with the connecting pipe two by the sleeve one. In the utility model, when opening valve, only need to press the handle and rotate, simple and convenient operation. And under non-human state, the action of spring one makes the limiting rod separate from the clamping groove of rotation bar two, avoid handle accidental rotation and drive sealing ball movement, prevent valve misoperation, improve the safety and reliability of valve use.

Description

Technical Field

[0001] This utility model relates to the field of valve body technology, and in particular to a bidirectional sealing eccentric hemispherical valve. Background Technology

[0002] In industrial pipeline systems, valves, as key components for controlling media flow, are widely used in many fields such as petroleum, chemical, natural gas, and water supply and drainage. Their performance directly affects the safety, stability, and reliability of the pipeline system. For operating conditions requiring bidirectional sealing and precise control of media flow, higher demands are placed on valve sealing performance, ease of operation, and prevention of misoperation.

[0003] Some existing valves lack effective anti-misoperation mechanisms during operation. When accidentally touched or vibrated, the handle is prone to rotation, which in turn causes the sealing ball to move, resulting in the valve being opened or closed incorrectly, affecting the normal operation of the pipeline system. Furthermore, frequent misoperations will increase the wear of various valve components and shorten the valve's service life. In response to this technical problem, this application proposes a bidirectional sealing eccentric hemispherical valve. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies by proposing a bidirectional sealing eccentric hemispherical valve. Opening the valve requires only pressing and rotating the handle, making operation simple and convenient. In non-human-operated states, the spring disengages the limiting rod from the slot of the rotating rod, preventing accidental rotation of the handle from causing the sealing ball to move, thus preventing accidental opening and closing of the valve and improving its safety and reliability.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A bidirectional sealing eccentric hemispherical valve includes a valve body, a support plate fixedly connected to the top of the valve body, a fixing frame fixedly connected to the top of the support plate, a rotating rod rotatably connected to the inner wall of the fixing frame, a rotating rod 2 connected to the outer wall of the rotating rod 1 via a limiting component, a sealing ball fixedly connected to the bottom end of the rotating rod 2, connecting pipes 1 fixedly connected to both the left and right ends of the valve body, the sealing ball being disposed on the inner wall of the two connecting pipes 1, connecting pipes 2 connected to the outer wall of the two adjacent ends of the two connecting pipes 1 via a clamping sleeve 1, clamping sleeves 2 rotatably connected to the bottom end of the two clamping sleeves 1, a fixing block 1 fixedly connected to the front end of the two clamping sleeves 1, a fixing block 2 fixedly connected to the front end of the two clamping sleeves 2, an extension rod connected to the front end of the two fixing blocks 2 via an elastic component, and the rear ends of the two extension rods fixedly connected to the front ends of the two fixing blocks 1.

[0007] Furthermore, the limiting assembly includes a limiting rod located on the outer wall of the first rotating rod, the outer wall of the limiting rod being disposed on the inner wall of the second rotating rod, a connecting ring 1 being slidably connected to the top side of the outer wall of the first rotating rod, the top end of the connecting ring 1 being rotatably connected to the inner wall of the fixed frame, and a connecting ring 2 being fixedly connected to the bottom side of the outer wall of the first rotating rod, the bottom end of the connecting ring 2 being rotatably connected to the top end of the second rotating rod.

[0008] Furthermore, a spring is provided on the outer wall of the rotating rod, one end of the spring is connected to the bottom end of the connecting ring, and the other end of the spring is connected to the top end of the connecting ring.

[0009] Furthermore, the elastic component includes a support frame located at the front end of the two fixed blocks, a connecting rod slidably connected to the inner wall of each of the two support frames, a hook fixedly connected to the top of each of the two connecting rods, and the hooks are both disposed on the outer wall of the protruding rod.

[0010] Furthermore, a second spring is provided on the outer wall of the connecting rod, one end of the second spring is connected to the inner wall of the support frame, and the other end of the connecting rod is connected to the outer wall of the connecting rod.

[0011] Furthermore, sealing rings are fixedly connected to the inner circumferences of the two first and two second ferrules, and multiple sealing rings are respectively disposed on the outer walls of the second connecting pipe and the first connecting pipe.

[0012] Furthermore, the second fixing block and the first fixing block are connected by bolts and nuts.

[0013] Furthermore, a throttle handle is fixedly connected to one end of the throttle rod.

[0014] This utility model has the following beneficial effects:

[0015] In this invention, opening the valve is as simple and convenient as pressing and turning the handle. In non-human-operated states, the spring disengages the limiting rod from the slot of the rotating rod, preventing accidental rotation of the handle from causing the sealing ball to move, thus preventing accidental opening and closing of the valve and improving its safety and reliability. Furthermore, this structural design reduces unnecessary wear and extends the valve's service life.

[0016] In this invention, the tight fit between the sealing rings on the inner circumferences of sleeve one and sleeve two and the outer walls of connecting pipe two and connecting pipe one, as well as the enhanced connection strength between sleeve one and sleeve two by spring two and hook in the elastic assembly, ensures the sealing performance at the connection between connecting pipe two and connecting pipe one. At the same time, the movement of the sealing ball on the inner wall of connecting pipe one enables bidirectional sealing of the valve, effectively preventing media leakage and meeting the sealing requirements under different working conditions. Attached Figure Description

[0017] Figure 1This is a perspective view of a bidirectional sealing eccentric hemispherical valve proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the sealing ball structure of a bidirectional sealing eccentric hemispherical valve proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting rod structure of a bidirectional sealing eccentric hemispherical valve proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the sealing ring structure of a bidirectional sealing eccentric hemispherical valve proposed in this utility model;

[0021] Figure 5 for Figure 4 Enlarged view of point A.

[0022] Legend:

[0023] 1. Valve body; 2. Support plate; 3. Fixing frame; 4. Rotary handle; 5. Rotating rod one; 6. Limiting rod; 7. Connecting ring one; 8. Connecting ring two; 9. Spring one; 10. Rotating rod two; 11. Sealing ball; 12. Connecting pipe one; 13. Sleeve one; 14. Sleeve two; 15. Sealing ring; 16. Fixing block one; 17. Extending rod; 18. Fixing block two; 19. Support frame; 20. Connecting rod; 21. Spring two; 22. Hook; 23. Connecting pipe two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a bidirectional sealing eccentric hemispherical valve, comprising a valve body 1, a support plate 2 fixedly connected to the top of the valve body 1, a fixing frame 3 fixedly connected to the top of the support plate 2, a rotating rod 5 rotatably connected to the inner wall of the fixing frame 3, a rotating rod 10 connected to the outer wall of the rotating rod 5 via a limiting rod 6, a sealing ball 11 fixedly connected to the bottom of the rotating rod 10, and connecting pipes 12 fixedly connected to both ends of the valve body 1. The sealing ball 11 is disposed on the inner wall of the two connecting pipes 12. Connecting pipe 12 is connected to connecting pipe 23 at one end of each pipe 12 via clamp 13. The bottom of each clamp 13 is rotatably connected to clamp 24. The front ends of each clamp 13 are fixedly connected to fixing block 16. The front ends of each clamp 24 are fixedly connected to fixing block 28. The front ends of each fixing block 28 are connected to extension rod 17 via support frame 19, connecting rod 20 and hook 22. The rear ends of each extension rod 17 are fixedly connected to the front ends of the two fixing blocks 16.

[0026] Specifically, when connecting pipe 23 to valve body 1, first align connecting pipe 23 with connecting pipe 12 at both ends of valve body 1. After alignment, fit ferrule 13 and ferrule 24 onto the connection between connecting pipe 23 and connecting pipe 12. The sealing rings 15, which are fixedly connected to the inner circumference of ferrule 13 and ferrule 24, fit tightly against the outer walls of connecting pipe 23 and connecting pipe 12, respectively, providing a preliminary seal. After the valve body is installed, when the valve needs to be opened, grasp the handle 4 and press it towards the fixing bracket 3. The handle 4 drives the rotating rod 5 downwards. During the pressing process, the connecting ring 8, which is fixedly connected to the bottom of the outer wall of the rotating rod 5, moves accordingly, thereby stretching the spring 9 on the outer wall of the rotating rod 5. At the same time, the limiting rod 6 on the outer wall of the rotating rod 5 moves with the rotating rod 5. When the limiting rod 6 moves into the groove on the inner wall of the rotating rod 10, turning the handle 4 will cause the rotating rod 5 to rotate together with the rotating rod 10 through the limiting rod 6. The sealing ball 11, which is fixedly connected to the bottom of the rotating rod 10, moves on the inner wall of the connecting pipe 12, thereby realizing the opening or closing operation of the valve.

[0027] Reference Figure 1 , Figure 3 and Figure 5The limiting rod 6 is located on the outer wall of the rotating rod 15, and the outer wall of the limiting rod 6 is set on the inner wall of the rotating rod 20. A connecting ring 7 is slidably connected to the top side of the outer wall of the rotating rod 15, and the top end of the connecting ring 7 is rotatably connected to the inner wall of the fixing frame 3. A connecting ring 28 is fixedly connected to the bottom side of the outer wall of the rotating rod 15, and the bottom end of the connecting ring 28 is rotatably connected to the top end of the rotating rod 20. A spring 9 is provided on the outer wall of the rotating rod 15, one end of the spring 9 is connected to the bottom end of the connecting ring 7, and the other end of the spring 9 is connected to the top end of the connecting ring 28. The support frame 19 is located at the front end of the two fixing blocks 218, and the inner walls of the two support frames 19 are slidable. Connecting rods 20 are connected, and hooks 22 are fixedly connected to the top of each connecting rod 20. Both hooks 22 are set on the outer wall of the extension rod 17. A second spring 21 is set on the outer wall of the connecting rod 20. One end of the second spring 21 is connected to the inner wall of the support frame 19, and the other end of the connecting rod 20 is connected to the outer wall of the connecting rod 20. Sealing rings 15 are fixedly connected to the inner circumference of the two first ferrules 13 and the two second ferrules 14. Multiple sealing rings 15 are respectively set on the outer walls of the second connecting pipe 23 and the first connecting pipe 12. The second fixing block 18 and the first fixing block 16 are connected by bolts and nuts. A handle 4 is fixedly connected to the top of the rotating rod 5.

[0028] Specifically, the fixing block 16 at the front end of the first ferrule 13 and the fixing block 18 at the front end of the second ferrule 14 are connected by bolts and nuts to achieve initial fixation between the first ferrule 13 and the second ferrule 14, thereby completing the basic connection between the second connecting pipe 23 and the valve body 1. When the hook 22 is pulled upward, the connecting rod 20 slides on the inner wall of the support frame 19, compressing the second spring 21. After hook 22 is fitted onto the extension rod 17, it is released. Under the elastic force of spring 21, connecting rod 20 moves hook 22 downward, causing hook 22 to exert a downward pulling force on extension rod 17. This increases the connection strength between sleeve 13 and sleeve 14, further ensuring the sealing and stability of the connection between connecting pipe 23 and connecting pipe 12. In non-human operation, spring 9 returns to its elastic deformation, generating an upward elastic force that moves handle 4 away from fixing bracket 3, causing limit rod 6 to disengage from the groove on the inner wall of rotating rod 10. At this time, limit rod 6 is in the circular groove on the inner wall of rotating rod 10. In this state, no matter how handle 4 is rotated, rotating rod 5 cannot drive rotating rod 10 through limit rod 6, thus avoiding misoperation of the valve due to accidental contact.

[0029] Working principle: After connecting pipe 23 to connecting pipe 12 on the valve body, fit ferrule 13 and ferrule 24 onto the connection between connecting pipe 23 and connecting pipe 12. Then, fix ferrule 13 and ferrule 24 with bolts and nuts, thereby connecting pipe 23 to the valve body. Then, pull hook 22 upward to compress spring 21, and fit hook 22 onto the extension rod 17. At this time, under the action of the elastic force of spring 21, hook 22 can generate a downward force on extension rod 17, thereby increasing the connection strength between ferrule 13 and ferrule 24. After the valve body is installed, when it is necessary to open the valve, simply hold the handle 4 and press the handle 4 towards the fixing bracket 3. The handle 4 will drive the rotating rod 5 to move, and during the pressing process, the rotating rod 5 will drive the connecting ring 8 to move. After the connecting ring 8 moves, it can stretch the spring 9. The rotating rod 5 can also drive the limiting rod 6 to move. When the limiting rod 6 moves into the slot in the rotating rod 10, rotating the handle 4 will drive the rotating rod 10 to rotate together. The rotating rod 10 will drive the sealing ball 11 to move, thereby controlling the valve body to close or open. In a non-human state, under the action of the spring 9, the handle 4 can be moved away from the fixed frame 3, thereby causing the limiting rod 6 to disengage from the slot in the rotating rod 10. At this time, the limiting rod 6 is in the circular groove in the rotating rod 10. No matter how the handle 4 is rotated, it will not drive the rotating rod 10 to move.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bidirectional sealing eccentric hemispherical valve, characterized in that: The valve body (1) includes a valve body (1), a support plate (2) fixedly connected to the top of the valve body (1), a fixed frame (3) fixedly connected to the top of the support plate (2), a rotating rod (5) rotatably connected to the inner wall of the fixed frame (3), a rotating rod (10) connected to the outer wall of the rotating rod (5) via a limiting component, a sealing ball (11) fixedly connected to the bottom end of the rotating rod (10), and connecting pipes (12) fixedly connected to both the left and right ends of the valve body (1). The sealing ball (11) is disposed on the inner wall of the two connecting pipes (12). One (12) has a connecting tube two (23) connected to the outer wall of one (13) at one end. The bottom of the two one (13) is rotatably connected to the two two (14). The front end of the two one (13) is fixedly connected to the two fixed blocks one (16). The front end of the two two (14) is fixedly connected to the two fixed blocks two (18). The front end of the two fixed blocks two (18) is connected to the extension rod (17) through the elastic component. The rear end of the two extension rods (17) is fixedly connected to the front end of the two fixed blocks one (16).

2. The bidirectional sealing eccentric hemispherical valve according to claim 1, characterized in that: The limiting assembly includes a limiting rod (6) located on the outer wall of the first rotating rod (5). The outer wall of the limiting rod (6) is set on the inner wall of the second rotating rod (10). A connecting ring (7) is slidably connected to the top side of the outer wall of the first rotating rod (5). The top end of the connecting ring (7) is rotatably connected to the inner wall of the fixing frame (3). A connecting ring (8) is fixedly connected to the bottom side of the outer wall of the first rotating rod (5). The bottom end of the connecting ring (8) is rotatably connected to the top end of the second rotating rod (10).

3. A bidirectional sealing eccentric hemispherical valve according to claim 2, characterized in that: The outer wall of the rotating rod (5) is provided with a spring (9), one end of which is connected to the bottom end of the connecting ring (7), and the other end of which is connected to the top end of the connecting ring (8).

4. The bidirectional sealing eccentric hemispherical valve according to claim 1, characterized in that: The elastic component includes a support frame (19) located at the front end of the two fixed blocks (18). The inner walls of the two support frames (19) are slidably connected with connecting rods (20). The top ends of the two connecting rods (20) are fixedly connected with hooks (22). The two hooks (22) are both set on the outer wall of the extension rod (17).

5. A bidirectional sealing eccentric hemispherical valve according to claim 4, characterized in that: A second spring (21) is provided on the outer wall of the connecting rod (20). One end of the second spring (21) is connected to the inner wall of the support frame (19), and the other end of the connecting rod (20) is connected to the outer wall of the connecting rod (20).

6. A bidirectional sealing eccentric hemispherical valve according to claim 1, characterized in that: The inner circumferences of the two first ferrules (13) and the two second ferrules (14) are all fixedly connected with sealing rings (15), and the multiple sealing rings (15) are respectively arranged on the outer walls of the second connecting pipe (23) and the first connecting pipe (12).

7. A bidirectional sealing eccentric hemispherical valve according to claim 1, characterized in that: The fixing block two (18) and fixing block one (16) are connected by bolts and nuts.

8. A bidirectional sealing eccentric hemispherical valve according to claim 1, characterized in that: The top of the rotating rod (5) is fixedly connected to the handle (4).

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