Anti-stuck ceramic ball valve

Abstract

This utility model relates to the field of ball valve technology, specifically to an anti-jamming ceramic ball valve, comprising: a ball valve body, the ball valve body including a valve body, a rod frame provided at the top of the valve body, and a valve stem disposed inside the rod frame; a limiting structure is connected inside one side of the valve stem, the limiting structure including a support spring, and a movable rod connected to one end of the support spring. When the valve body is closed by rotating the valve stem, the movable rod drives an arc-shaped sliding plate to move within an annular groove in a fixed ring. The support spring supports the limiting rod inserted into a through hole in the fixed ring, thereby locking the angle of the valve stem. The sliding plate limits one end of the movable rod, preventing it from disengaging from the valve stem. When the valve stem needs to be opened, the limiting rod is pressed into the fixed ring, allowing the valve stem to rotate normally and preventing the problem of the ceramic ball valve being affected by jamming.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically to a ceramic ball valve that prevents jamming. Background Technology

[0002] A ceramic ball valve is a type of valve primarily used to cut off and connect fluids in pipelines. Its main function is to control the flow of fluids, prevent backflow, and regulate the pressure and flow rate of the fluids. By rotating the valve stem or using an electric actuator, the valve can be opened or closed, thereby controlling the flow of fluids. Ceramic ball valves have excellent sealing performance, effectively preventing backflow of fluids when closed.

[0003] When using existing ceramic ball valves, their function is to control the flow of fluid and prevent backflow. Existing ceramic ball valves are locked by using an electronic controller or a key to lock the handle. However, this method is prone to jamming due to power failure or the key getting stuck, which affects the normal use of the ceramic ball valve. Utility Model Content

[0004] The purpose of this utility model is to provide a ceramic ball valve that prevents jamming, in order to solve the problem mentioned in the background art that when existing ceramic ball valves are locked, the handle is locked by an electronic controller or a key. However, such methods are prone to jamming due to power failure or key jamming, which affects the normal use of the ceramic ball valve.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-jamming ceramic ball valve, comprising:

[0006] A ball valve body, the ball valve body including a valve body, a rod frame provided at the top of the valve body, and a valve stem provided inside the rod frame;

[0007] The valve stem is internally connected to a limiting structure on one side. The limiting structure includes a support spring, one end of which is connected to a movable rod. Slider blocks are connected to both sides of the movable rod. One end of the movable rod is connected to an arc-shaped sliding plate. One end of the arc-shaped sliding plate is connected to a limiting rod. A fixing ring is sleeved on the outer wall of the limiting rod.

[0008] Preferably, the fixing ring is connected to the top surface of the rod frame, and an annular groove is formed on the inner surface of the fixing ring, with the arc-shaped sliding plate inserted into the annular groove of the fixing ring.

[0009] Preferably, a movable groove is provided on one side of the valve stem, one end of the support spring is connected to one side of the inner wall of the movable groove of the valve stem, and sliding grooves are provided on both sides of the inner wall of the movable groove of the valve stem, with the slider inserted into the sliding groove of the valve stem.

[0010] Preferably, a through hole is provided on one side of the inner wall of the annular groove of the fixing ring, and one end of the limiting rod is inserted into the through hole of the fixing ring.

[0011] Preferably, the surface of the fixing ring is connected to a closed structure, the closed structure includes a support frame, an adjusting screw is rotatably connected inside the support frame, a bearing is provided on the outer surface of one end of the adjusting screw, a fixing plate is connected to the outer surface of the bearing, and a sealing gasket is connected to the top of the fixing plate.

[0012] Preferably, the through hole of the fixing ring is the same size as the sealing gasket, the surface of the support frame is provided with a threaded groove, and one end of the adjusting screw is rotatably connected to the inside of the threaded groove of the support frame.

[0013] Preferably, the surface of the fixing plate has a slot, the bearing is disposed inside the slot of the fixing plate, and the adjusting screw and the fixing plate are movably connected by the bearing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When the valve body is closed by rotating the valve stem, the movable rod drives the arc-shaped sliding plate to move inside the annular groove of the fixed ring. When the limiting rod moves to the through hole of the fixed ring, the support spring supports the limiting rod to be inserted into the through hole of the fixed ring, thereby locking the angle of the valve stem. The slider limits one end of the movable rod, preventing the movable rod from disengaging from the valve stem. When it is necessary to open the valve stem, the limiting rod is pressed into the fixed ring, so that the valve stem can rotate normally, avoiding the problem of the valve stem jamming, which would affect the normal use of the ceramic ball valve.

[0016] 2. By rotating the adjusting screw, one end of it is rotatably connected to the threaded groove of the support frame. The bearing ensures that the rotation of the adjusting screw does not affect the angle of the fixed plate, and the adjusting screw can drive the fixed plate to move. This causes one end of the sealing gasket to fit into the through hole of the fixed ring, filling and sealing the fixed ring, and preventing the limiting rod from being inserted into the through hole of the fixed ring. This achieves the sealing effect of the fixed ring and the limiting effect of the limiting rod. Attached Figure Description

[0017] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0018] Figure 2 This is a three-dimensional sectional view of the structure of this utility model.

[0019] Figure 3 This is a top view and partial cross-sectional perspective view of the structure of this utility model;

[0020] Figure 4This is a partial sectional three-dimensional side view of the structure of this utility model;

[0021] Figure 5 This is a partial sectional view of the structure of this utility model from the side.

[0022] In the diagram: 1. Ball valve body; 11. Valve body; 12. Rod holder; 13. Valve stem; 2. Limiting structure; 21. Support spring; 22. Movable rod; 23. Slider; 24. Arc-shaped sliding plate; 25. Limiting rod; 26. Fixing ring; 3. Enclosed structure; 31. Support frame; 32. Adjusting screw; 33. Bearing; 34. Fixing plate; 35. Sealing gasket. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 One embodiment provided by this utility model:

[0025] A type of anti-jamming ceramic ball valve, comprising:

[0026] The ball valve body 1 includes a valve body 11, a rod holder 12 is provided at the top of the valve body 11, and a valve stem 13 is provided inside the rod holder 12. The connection method between the rod holder 12 and the valve stem 13 is existing technology and can be purchased on the market. It is not considered as a technical protection point of this application, so no further details are made.

[0027] A limiting structure 2 is connected inside one side of the valve stem 13. The limiting structure 2 includes a support spring 21. One end of the support spring 21 is connected to a movable rod 22. Slider 23 is connected to both sides of the movable rod 22. One end of the movable rod 22 is connected to an arc-shaped sliding plate 24. One end of the arc-shaped sliding plate 24 is connected to a limiting rod 25. A fixing ring 26 is sleeved on the outer wall of the limiting rod 25.

[0028] Furthermore, the fixing ring 26 is connected to the top surface of the rod frame 12. An annular groove is provided on the inner surface of the fixing ring 26. The arc-shaped sliding plate 24 is inserted into the annular groove of the fixing ring 26, so that the arc-shaped sliding plate 24 can be moved and limited by the annular groove of the fixing ring 26, and the arc-shaped sliding plate 24 can be used to limit the movement of the movable rod 22 and the limiting rod 25.

[0029] Furthermore, a movable groove is provided on one side of the valve stem 13, and one end of the support spring 21 is connected to one side of the inner wall of the movable groove of the valve stem 13. Sliding grooves are provided on both sides of the inner wall of the movable groove of the valve stem 13, and the slider 23 is inserted into the sliding groove of the valve stem 13, so that the slider 23 can be moved and limited by the sliding groove of the valve stem 13, and the slider 23 can restrict one end of the movable rod 22.

[0030] Furthermore, a through hole is provided on one side of the inner wall of the annular groove of the fixing ring 26, and one end of the limiting rod 25 is inserted into the through hole of the fixing ring 26, so that the limiting rod 25 is positioned through the through hole of the fixing ring 26, and the angle of the valve stem 13 is limited by the limiting rod 25.

[0031] Furthermore, a closed structure 3 is connected to the surface of the fixed ring 26. The closed structure 3 includes a support frame 31. An adjusting screw 32 is rotatably connected inside the support frame 31. A bearing 33 is provided on the outer surface of one end of the adjusting screw 32. A fixing plate 34 is connected to the outer surface of the bearing 33. A sealing gasket 35 is connected to the top of the fixing plate 34 to fill and seal the fixed ring 26 and prevent the limiting rod 25 from being inserted into the through hole of the fixed ring 26.

[0032] Furthermore, the through hole of the fixing ring 26 is the same size as that of the sealing gasket 35, and the support frame 31 has a threaded groove on its surface. One end of the adjusting screw 32 is rotatably connected to the inside of the threaded groove of the support frame 31, so that the threaded groove of the support frame 31 can limit one end of the adjusting screw 32, and the adjusting screw 32 can be used to restrict the sealing gasket 35.

[0033] Furthermore, the surface of the fixing plate 34 is provided with a slot, and the bearing 33 is disposed inside the slot of the fixing plate 34. The adjusting screw 32 and the fixing plate 34 are movably connected by the bearing 33, so that the angle of the fixing plate 34 is not affected when the adjusting screw 32 rotates through the bearing 33.

[0034] Working principle: When the ceramic ball valve is locked, the valve body 11 is closed by rotating the valve stem 13. The movable rod 22 drives the arc-shaped sliding plate 24 to move inside the annular groove of the fixed ring 26. When the limiting rod 25 moves to the through hole of the fixed ring 26, the support spring 21 supports the limiting rod 25 to be inserted into the through hole of the fixed ring 26, thereby locking the angle of the valve stem 13. The slider 23 limits one end of the movable rod 22 so that the movable rod 22 will not come out of the valve stem 13. When it is necessary to open the valve stem 13, the limiting rod 25 is pressed into the fixed ring 26, so that the valve stem 13 can rotate normally.

[0035] When the anti-jamming ceramic ball valve is closed, the adjusting screw 32 is rotated so that one end is rotatably connected to the threaded groove of the support frame 31. The bearing 33 ensures that the rotation of the adjusting screw 32 does not affect the angle of the fixed plate 34, and the adjusting screw 32 can drive the fixed plate 34 to move. This causes one end of the sealing gasket 35 to fit into the through hole of the fixed ring 26, filling and sealing the fixed ring 26, and preventing the limiting rod 25 from being inserted into the through hole of the fixed ring 26. This achieves the effect of closing the fixed ring 26 and restricting the limiting rod 25.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A ceramic ball valve that prevents seizure, characterized by, include: The ball valve body (1) includes a valve body (11), a rod frame (12) is provided at the top of the valve body (11), and a valve stem (13) is provided inside the rod frame (12); The valve stem (13) is internally connected to a limiting structure (2) on one side. The limiting structure (2) includes a support spring (21). One end of the support spring (21) is connected to a movable rod (22). The movable rod (22) is connected to two sliders (23) on both sides. One end of the movable rod (22) is connected to an arc-shaped sliding plate (24). One end of the arc-shaped sliding plate (24) is connected to a limiting rod (25). A fixing ring (26) is sleeved on the outer wall of the limiting rod (25).

2. The anti-stuck ceramic ball valve according to claim 1, wherein: The fixing ring (26) is connected to the top surface of the rod frame (12). The inner surface of the fixing ring (26) is provided with an annular groove, and the arc-shaped sliding plate (24) is inserted into the annular groove of the fixing ring (26).

3. The anti-stuck ceramic ball valve according to claim 1, wherein: The valve stem (13) has a movable groove on one side, and one end of the support spring (21) is connected to one side of the inner wall of the movable groove of the valve stem (13). The movable groove of the valve stem (13) has sliding grooves on both sides, and the slider (23) is inserted into the sliding groove of the valve stem (13).

4. The anti-stuck ceramic ball valve according to claim 1, wherein: The annular groove of the fixing ring (26) has a through hole on one side, and one end of the limiting rod (25) is inserted into the through hole of the fixing ring (26).

5. The anti-stuck ceramic ball valve according to claim 1, wherein: The surface of the fixed ring (26) is connected to a closed structure (3), the closed structure (3) includes a support frame (31), an adjusting screw (32) is rotatably connected inside the support frame (31), a bearing (33) is provided on the outer surface of one end of the adjusting screw (32), a fixing plate (34) is connected to the outer surface of the bearing (33), and a sealing gasket (35) is connected to the top of the fixing plate (34).

6. The anti-stuck ceramic ball valve according to claim 5, wherein: The through hole of the fixing ring (26) is the same size as that of the sealing gasket (35), and the surface of the support frame (31) is provided with a threaded groove. One end of the adjusting screw (32) is rotatably connected to the inside of the threaded groove of the support frame (31).

7. The anti-jamming ceramic ball valve according to claim 5, characterized in that: The surface of the fixing plate (34) is provided with a slot, and the bearing (33) is disposed inside the slot of the fixing plate (34). The adjusting screw (32) and the fixing plate (34) are movably connected by the bearing (33).

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