Ball valve convenient to disassemble

Abstract

The utility model discloses a ball valve convenient to disassemble, which belongs to the technical field of valves and comprises a valve body, a first flow channel and a valve ball cavity, the first flow channel is arranged on the surface of the valve body, the valve ball cavity is arranged inside the valve body, the surface of the valve body is in threaded connection with a valve cover, a second flow channel is arranged on the surface of the valve cover, and the second flow channel is communicated with the valve body. A first sealing ring is fixedly connected to the surface of the valve cover, a second sealing ring is fixedly connected to the inner wall of the valve ball cavity, and when people need to replace the valve ball in the ball valve, people twist and take down the valve cover in threaded connection and then use a screwdriver to rotate the adjusting knob, the adjusting knob drives the rotating shaft and the threaded pipe to rotate, and then the valve ball is replaced. And under the mutual cooperation of the threaded pipe and the threaded column, the threaded column drives the inserting rod to retreat from the inserting groove in the O-shaped valve ball, so that the O-shaped valve ball is separated from the inserting rod, people can easily take out the O-shaped valve ball in the valve ball cavity from one side of the valve cover, and people can conveniently replace a valve in the ball valve.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and more specifically, to a ball valve which is easy to disassemble. Background Art

[0002] A ball valve is a valve that opens and closes by rotating the ball around the center line of the valve body. The ball valve mainly cuts off, distributes and changes the flow direction of the medium in the pipeline. After a long period of repeated opening and closing during use, the valve ball inside the ball valve will wear out, causing the sealing of the ball valve to deteriorate. Therefore, the ball valve needs to be regularly maintained and the valve ball replaced. The existing general ball valve also has the disadvantage of being inconvenient to replace the internal valve ball. To solve the above problem, we have launched the following ball valve that is easy to disassemble. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a ball valve that is easy to disassemble and has the characteristic of being easy to replace the valve ball inside the ball valve.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides a ball valve that is easy to disassemble, including a valve body, a first flow channel and a valve ball cavity, the first flow channel is opened on the surface of the valve body, the valve ball cavity is opened inside the valve body, a valve cover is threadedly connected to the surface of the valve body, a second flow channel is opened on the surface of the valve cover, a first sealing ring is fixedly connected to the surface of the valve cover, a second sealing ring is fixedly connected to the inner wall of the valve ball cavity, an O-shaped valve ball is movably arranged in the valve ball cavity, a valve stem groove is opened on the upper surface of the valve body, an annular groove is opened on the upper surface of the valve body, a first bearing is fixedly connected in the annular groove, a hollow valve stem is passed through the first bearing shaft, and the hollow valve stem A fixing plate is fixedly connected in the middle, a second bearing is passed through the surface of the fixing plate, a rotating shaft is passed through the second bearing, an adjusting knob is fixedly connected to the upper end of the rotating shaft, a threaded column is fixedly connected to the lower end of the rotating shaft, a threaded tube is threadedly connected to the lower end of the threaded column, a limiting groove is arranged on the inner wall of the hollow valve stem, a limiting block is movably arranged in the limiting groove, the limiting block is fixedly connected to the surface of the threaded tube, there are two groups of limiting blocks and limiting grooves, and they are symmetrically arranged on the surface of the threaded column, a plug-in rod is fixedly connected to the lower end of the threaded column, a plug-in groove is arranged on the surface of the O-shaped valve ball corresponding to the plug-in rod, and a twist handle is fixedly connected to the top of the hollow valve stem.

[0007] When using a ball valve that is easy to disassemble according to the technical solution, by setting a threaded tube, a threaded column and an adjusting knob, when people need to replace the valve ball inside the ball valve, people first twist and remove the threaded valve cover, and then use a screwdriver to turn the adjusting knob. The adjusting knob drives the rotating shaft and the threaded tube to rotate. With the mutual cooperation of the threaded tube and the threaded column, the threaded column drives the connecting rod to exit the connecting groove on the O-shaped valve ball, so that the O-shaped valve ball is separated from the connecting rod, and people can easily remove the O-shaped valve ball in the valve ball cavity from one side of the valve cover, which is convenient for people to replace the valve ball inside the ball valve.

[0008] Furthermore, the valve body is a T-shaped cross structure of two columns.

[0009] Furthermore, the first flow channel, the second flow channel and the flow channel inside the O-shaped valve ball are collinear and have the same diameter.

[0010] Furthermore, the first sealing ring and the second sealing ring are made of rubber material, and both the first sealing ring and the second sealing ring are in contact with the surface of the O-ring valve ball.

[0011] Furthermore, a cross slot for a screwdriver to twist is provided on the upper surface of the adjusting knob.

[0012] Furthermore, the O-shaped valve ball is made of rubber, and the diameter of the O-shaped valve ball is slightly smaller than the diameter of the valve ball cavity.

[0013] Furthermore, the surface of the twist handle is provided with anti-slip grooves.

[0014] (3) Beneficial effects

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. The ball valve which is easy to disassemble is provided with a threaded tube, a threaded column and an adjusting knob. When people need to replace the valve ball inside the ball valve, they first twist and remove the valve cover with threaded connection, and then use a screwdriver to turn the adjusting knob. The adjusting knob drives the rotating shaft and the threaded tube to rotate. Under the mutual cooperation of the threaded tube and the threaded column, the threaded column drives the plug-in rod to withdraw from the plug-in groove on the O-shaped valve ball, so that the O-shaped valve ball is separated from the plug-in rod. People can easily take out the O-shaped valve ball in the valve ball cavity from one side of the valve cover, which is convenient for people to replace the valve ball inside the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the drawings required for describing the specific implementation or the prior art will be briefly introduced below. Obviously, the drawings described below are only one implementation of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the utility model in a frontal perspective;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model in a frontal three-dimensional cross-sectional view;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0021] The symbols in the accompanying drawings are:

[0022] 1. Valve body; 2. First flow channel; 3. Valve ball cavity; 4. Valve cover; 5. Second flow channel; 6. First sealing ring; 7. Second sealing ring; 8. O-shaped valve ball; 9. Valve stem groove; 10. Annular groove; 11. First bearing; 12. Hollow valve stem; 13. Fixed plate; 14. Second bearing; 15. Rotating shaft; 16. Adjusting knob; 17. Threaded column; 18. Threaded pipe; 19. Limiting groove; 20. Limiting block; 21. Connecting rod; 22. Connecting groove; 23. Twist handle. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the utility model easy to understand, the technical scheme in the specific implementation mode of the utility model is clearly and completely described below to further illustrate the utility model. Obviously, the specific implementation mode described is only a part of the implementation mode of the utility model, rather than all styles.

[0024] Example:

[0025] The following is combined with Figure 1-3 The utility model is described in further detail.

[0026] See also Figure 1-3The utility model provides a technical solution: a ball valve that is easy to disassemble, including a valve body 1, a first flow channel 2 and a valve ball cavity 3, the first flow channel 2 is opened on the surface of the valve body 1, the valve ball cavity 3 is opened inside the valve body 1, a valve cover 4 is threadedly connected to the surface of the valve body 1, a second flow channel 5 is opened on the surface of the valve cover 4, a first sealing ring 6 is fixedly connected to the surface of the valve cover 4, a second sealing ring 7 is fixedly connected to the inner wall of the valve ball cavity 3, an O-shaped valve ball 8 is movably arranged in the valve ball cavity 3, a valve stem groove 9 is opened on the upper surface of the valve body 1, an annular groove 10 is opened on the upper surface of the valve body 1, a first bearing 11 is fixedly connected in the annular groove 10, a hollow valve stem 12 is passed through the shaft of the first bearing 11, and a fixing plate 13 is fixedly connected to the hollow valve stem 12 A second bearing 14 is penetrated through the surface of the fixed plate 13, a rotating shaft 15 is penetrated through the second bearing 14, an adjusting knob 16 is fixedly connected to the upper end of the rotating shaft 15, a threaded column 17 is fixedly connected to the lower end of the rotating shaft 15, a threaded tube 18 is threadedly connected to the lower end of the threaded column 17, a limiting groove 19 is provided on the inner wall of the hollow valve stem 12, a limiting block 20 is movably provided in the limiting groove 19, the limiting block 20 is fixedly connected to the surface of the threaded tube 18, there are two groups of limiting blocks 20 and limiting grooves 19, and they are symmetrically arranged on the surface of the threaded column 17, a plug-in rod 21 is fixedly connected to the lower end of the threaded column 17, a plug-in groove 22 is provided on the surface of the O-shaped valve ball 8 corresponding to the plug-in rod 21, and a twist handle 23 is fixedly connected to the top of the hollow valve stem 12.

[0027] By adopting the above technical scheme, the ball valve which is easy to disassemble is provided with a threaded tube 18, a threaded column 17 and an adjusting knob 16. When people need to replace the valve ball inside the ball valve, they first twist and remove the threaded valve cover 4, and then use a screwdriver to turn the adjusting knob 16. The adjusting knob 16 drives the rotating shaft 15 and the threaded tube 18 to rotate. Under the mutual cooperation of the threaded tube 18 and the threaded column 17, the threaded column 17 drives the plug-in rod 21 to withdraw from the plug-in groove 22 on the O-shaped valve ball 8, so that the O-shaped valve ball 8 is separated from the plug-in rod 21. People can easily take out the O-shaped valve ball 8 in the valve ball cavity 3 from one side of the valve cover 4, which is convenient for people to replace the valve ball inside the ball valve.

[0028] Specifically, the valve body 1 is a T-shaped cross structure of two columns.

[0029] Specifically, the first flow channel 2 , the second flow channel 5 and the flow channel inside the O-shaped valve ball 8 are collinear and have the same diameter.

[0030] Specifically, the first sealing ring 6 and the second sealing ring 7 are made of rubber material, and both the first sealing ring 6 and the second sealing ring 7 are in contact with the surface of the O-shaped valve ball 8 .

[0031] Specifically, a cross slot for a screwdriver to twist is provided on the upper surface of the adjusting knob 16 .

[0032] Specifically, the O-shaped valve ball 8 is made of rubber, and the diameter of the O-shaped valve ball 8 is slightly smaller than the diameter of the valve ball cavity 3 .

[0033] Specifically, the surface of the twist handle 23 is provided with anti-slip grooves.

[0034] The working principle of the utility model is as follows: when in use, people twist the handle 23 to rotate the hollow valve stem 12. Under the restriction of the two sets of limit blocks 20 and the limit groove 19, the hollow valve stem 12 drives the plug-in rod 21 to rotate, and the plug-in rod 21 drives the O-shaped valve ball 8 to rotate. When the two ends of the flow channel in the middle of the O-shaped valve ball 8 are respectively connected with the first flow channel 2 and the second flow channel 5, the ball valve is in a passage state and the medium can pass through. On the contrary, the ball valve is in a closed state and the medium cannot pass through. When people need to replace When removing the valve ball inside the ball valve, people first twist and remove the threaded valve cover 4, and then use a screwdriver to turn the adjusting knob 16. The adjusting knob 16 drives the rotating shaft 15 and the threaded tube 18 to rotate. Under the mutual cooperation of the threaded tube 18 and the threaded column 17, the threaded column 17 drives the plug-in rod 21 to withdraw from the plug-in groove 22 on the O-shaped valve ball 8, so that the O-shaped valve ball 8 is separated from the plug-in rod 21. People can easily take out the O-shaped valve ball 8 in the valve ball cavity 3 from one side of the valve cover 4, which is convenient for people to replace the valve ball inside the ball valve.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A ball valve that is easy to disassemble, comprising a valve body (1), a first flow channel (2) and a valve ball cavity (3), characterized in that: The first flow channel (2) is provided on the surface of the valve body (1), the valve ball cavity (3) is provided inside the valve body (1), the valve cover (4) is threadedly connected to the surface of the valve body (1), the second flow channel (5) is provided on the surface of the valve cover (4), the first sealing ring (6) is fixedly connected to the surface of the valve cover (4), the second sealing ring (7) is fixedly connected to the inner wall of the valve ball cavity (3), an O-shaped valve ball (8) is movably arranged in the valve ball cavity (3), a valve stem groove (9) is provided on the upper surface of the valve body (1), an annular groove (10) is provided on the upper surface of the valve body (1), a first bearing (11) is fixedly connected in the annular groove (10), a hollow valve stem (12) is passed through the shaft of the first bearing (11), a fixing plate (13) is fixedly connected to the hollow valve stem (12), and a second bearing (14) is passed through the surface of the fixing plate (13). A rotating shaft (15) is passed through the second bearing (14), an upper end of the rotating shaft (15) is fixedly connected to an adjusting knob (16), a lower end of the rotating shaft (15) is fixedly connected to a threaded column (17), a lower end of the threaded column (17) is threadedly connected to a threaded tube (18), a limiting groove (19) is provided on the inner wall of the hollow valve stem (12), a limiting block (20) is movably provided in the limiting groove (19), the limiting block (20) is fixedly connected to the surface of the threaded tube (18), there are two groups of the limiting blocks (20) and the limiting groove (19), and they are symmetrically arranged on the surface of the threaded column (17), a plug-in rod (21) is fixedly connected to the lower end of the threaded column (17), a plug-in groove (22) is provided on the surface of the O-shaped valve ball (8) corresponding to the plug-in rod (21), and a twist handle (23) is fixedly connected to the top of the hollow valve stem (12).

2. The ball valve that is easy to disassemble according to claim 1, characterized in that: The valve body (1) is a T-shaped cross structure of two columns.

3. The ball valve that is easy to disassemble according to claim 1, characterized in that: The first flow channel (2), the second flow channel (5) and the internal flow channel of the O-shaped valve ball (8) are collinear and have the same diameter.

4. The ball valve that is easy to disassemble according to claim 1 is characterized in that: The first sealing ring (6) and the second sealing ring (7) are made of rubber material, and both the first sealing ring (6) and the second sealing ring (7) are in contact with the surface of the O-shaped valve ball (8).

5. The ball valve that is easy to disassemble according to claim 1, characterized in that: The upper surface of the adjusting knob (16) is provided with a cross slot for a screwdriver to twist.

6. The ball valve that is easy to disassemble according to claim 1, characterized in that: The O-shaped valve ball (8) is made of rubber material, and the diameter of the O-shaped valve ball (8) is slightly smaller than the diameter of the valve ball cavity (3).

7. The ball valve that is easy to disassemble according to claim 1, characterized in that: The surface of the twist handle (23) is provided with anti-slip grooves.

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