Magnetic locking ball valve

Abstract

The utility model relates to ball valve technical field, especially a magnetic force locking ball valve, including valve body, the fluid passage of opening in valve body, rotatable setting in the ball valve valve stem of valve body, the valve ball of being located in the valve body, the ball valve valve stem is located in the one end of valve body and the valve ball is engaged, still be equipped with the bonnet for positioning the valve ball on the valve body, first sealing ring is equipped between the bonnet and valve ball and between the valve body and valve ball, still be equipped with the valve cover on the valve body, the valve cover is connected with ball valve valve stem for driving the valve rod rotation, still be equipped with the first encryption device for preventing the valve cover to be opened and closed at random between the valve cover and valve body.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a magnetic locking ball valve. Background Technology

[0002] Ball valves are a common type of valve. They open and close the medium passage by rotating the ball valve core. In pipelines, they mainly serve to cut off, distribute, and change the direction of medium flow. They are generally used fully open or fully closed and do not have a regulating function. They are widely used in water supply, heating, and gas supply pipelines in residential buildings. To enhance management, most ball valves used in pipelines have a locking function, and their opening is controlled by professionals to prevent accidental opening. However, most ball valves only have the function of preventing opening, not the function of preventing closing, which is not safe enough. Utility Model Content

[0003] Therefore, in view of the above problems, this utility model proposes a magnetic locking ball valve.

[0004] To achieve the above objectives, the present invention provides a magnetic locking ball valve, comprising a valve body, a fluid passage formed on the valve body, a ball valve stem rotatably disposed on the valve body, and a valve ball disposed within the valve body. One end of the ball valve stem located within the valve body engages with the valve ball. The valve body is also provided with a valve cap for positioning the valve ball. A first sealing ring is provided between the valve cap and the valve ball, and between the valve body and the valve ball. The valve body is also provided with a valve cover, which is connected to the ball valve stem for driving the valve stem to rotate. A first encryption device is also provided between the valve cover and the valve body to prevent the valve cover from being opened or closed arbitrarily.

[0005] A further improvement is made to the first encryption device, which includes a first locking hole on the valve body, a locking rod in the first locking hole, a first spring in the first locking hole, one end of the first spring abutting against the locking rod and the other end abutting against the bottom of the first locking hole, a first locking hole for inserting the locking rod on the valve cover, and a second locking hole for inserting the locking rod on the valve cover. The central angle formed by the axis connecting the first locking hole and the second locking hole to the axis of the ball valve stem is 90 degrees, and the locking rod is a magnetic rod.

[0006] A further improvement is that a limiting device is provided between the valve body and the valve cover to prevent the user from opening or closing the valve incompletely.

[0007] A further improvement is that the limiting device includes: a second locking hole on the valve body, a limiting rod in the second locking hole, an arc-shaped groove on the valve cover, and a central angle of 90 degrees formed by connecting the two ends of the arc-shaped groove to the axis of the ball valve stem. One end of the limiting rod is located in the second locking hole and the other end is located in the arc-shaped groove.

[0008] A further improvement is that a second encryption device is provided between the limiting rod and the arc-shaped groove.

[0009] A further improvement is that the second encryption device includes encryption holes respectively located at both ends of the arc-shaped groove, the limiting rod is a magnetic rod, and a second spring is also provided in the second locking hole, with one end of the second spring abutting against the limiting rod and the other end abutting against the bottom of the second locking hole.

[0010] A further improvement is that the valve cover and the ball valve stem are fixedly connected by a pin.

[0011] A further improvement is that the valve cover is also equipped with a locking block to facilitate engagement with the handle for opening and closing the valve.

[0012] A further improvement is that the valve cap is also equipped with a telescopic check device.

[0013] A further improvement is made to the telescopic check device, which includes: a sleeve locked onto the valve cap; a mounting bracket on the sleeve for fluid outflow; a sliding sleeve on the mounting bracket; a check valve stem slidably mounted on the sliding sleeve; a check valve plate on the check valve stem for sealing against the valve cap; a first sealing gasket on the check valve plate; and a conical helical spring mounted on the check valve stem, one end of which resists the check valve plate and the other end of which resists the mounting bracket. A telescopic tube is provided inside the sleeve via a sliding engagement device, and a swivel nut is rotatably provided at the other end of the telescopic tube via a limiting engagement device. The swivel nut has a first connecting thread.

[0014] A further improvement is that the valve cap is also equipped with a check valve seat to enhance the sealing performance.

[0015] A further improvement is that the sliding engagement device includes: a limiting ring block disposed on the telescopic tube and matching the inner diameter of the sleeve; a limiting ring groove opened on the sleeve; a retaining ring disposed in the limiting ring groove for engaging with the limiting ring block; several second sealing grooves opened on the limiting ring block; and a second sealing ring disposed in the second sealing groove.

[0016] A further improvement is that the limiting engagement device includes: a first limiting ring platform disposed on the telescopic tube, and a second limiting ring platform disposed in the swivel nut for engaging with the first limiting ring platform.

[0017] A further improvement is that a third sealing gasket is provided inside the live joint nut on the first limiting ring platform.

[0018] A further improvement is that the valve body is provided with a second connecting thread.

[0019] The advantages and beneficial effects of this utility model are as follows: With a simple structure and convenient use, it is equipped with a first encryption device that can maintain the encryption effect when the valve is fully closed or fully open, preventing unauthorized personnel from opening or closing it and improving the security of valve opening and closing. It is also equipped with a limit device and a second encryption device, which allows the operator to more conveniently fully open or fully close the valve, extending the valve's service life. It can also further encrypt the ball valve to prevent malicious personnel from opening or closing it. Attached Figure Description

[0020] Figure 1 This is a front sectional view of a magnetic locking ball valve according to the present invention; Figure 2 This is a top view schematic diagram of the valve body of a magnetic locking ball valve according to the present invention; Figure 3 This is a bottom view of the valve cover of a magnetic locking ball valve according to this utility model; Figure 4 This is a top view schematic diagram of the valve cover of a magnetic locking ball valve according to this utility model; Figure 5 This is a cross-sectional schematic diagram of the valve cover of a magnetic locking ball valve according to this utility model; In the diagram: 1. Valve body; 2. Fluid passage; 3. Ball valve stem; 4. Valve ball; 5. Valve cap; 6. First sealing ring; 7. Valve cover; 8. First locking hole; 9. Engaging rod; 10. First spring; 11. First engaging hole; 12. Second engaging hole; 13. Second locking hole; 14. Limiting rod; 15. Arc groove; 16. Encryption hole; 17. Pin; 18. Locking block; 19. Sleeve; 20. Mounting bracket; 21. 21. Sliding sleeve; 22. Check valve plate; 23. First sealing gasket; 24. Conical helical spring; 25. Telescopic tube; 26. Union nut; 27. First connecting thread; 28. Check valve seat; 29. ​​Limiting ring block; 30. Limiting ring groove; 31. Snap ring; 32. Second sealing groove; 33. Second sealing ring; 34. First limiting ring platform; 35. Second limiting ring platform; 36. Third sealing gasket; 37. Second connecting thread. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0022] like Figures 1-5As shown, a magnetic locking ball valve includes a valve body 1, a fluid passage 2 opened on the valve body 1, a ball valve stem 3 rotatably disposed on the valve body 1, and a valve ball 4 disposed inside the valve body 1. One end of the ball valve stem 3 located inside the valve body 1 is engaged with the valve ball 4. The valve body 1 is also provided with a valve cap 5 for positioning the valve ball 4. A first sealing ring 6 is provided between the valve cap 5 and the valve ball 4, and between the valve body 1 and the valve ball 4. The valve body 1 is also provided with a valve cover 7. The valve cover 7 is connected to the ball valve stem 3 to drive the valve stem to rotate. A first encryption device is also provided between the valve cover 7 and the valve body 1 to prevent the valve cover 7 from being opened and closed arbitrarily.

[0023] Furthermore, as an optional implementation, in order to prevent the valve from being opened or closed, so that the valve can remain in a fully open or fully closed state, the first encryption device includes: a first locking hole 8 provided on the valve body 1, a locking rod 9 provided in the first locking hole 8, a first spring 10 provided in the first locking hole 8, one end of the first spring 10 abutting against the locking rod 9 and the other end abutting against the bottom of the first locking hole 8, the valve cover 7 is provided with a first locking hole 11 for inserting the locking rod 9, the valve cover 7 is also provided with a second locking hole 12 for inserting the locking rod 9, the central angle formed by the axis of the first locking hole 11 and the axis of the second locking hole 12 connected to the axis of the ball valve stem 3 is 90 degrees, and the locking rod 9 is a magnetic rod.

[0024] Furthermore, as an optional implementation, in order to facilitate the user to fully open or close the valve, a limiting device is also provided between the valve body 1 and the valve cover 7 to prevent the user from not opening or closing the valve in the correct position. The limiting device includes: a second locking hole 13 provided on the valve body 1 and a limiting rod 14 provided in the second locking hole 13. The valve cover 7 is provided with an arc-shaped groove 15 and the central angle formed by the connection of the two ends of the arc-shaped groove 15 to the axis of the ball valve stem 3 is 90 degrees. One end of the limiting rod 14 is located in the second locking hole 13 and the other end is located in the arc-shaped groove 15.

[0025] Furthermore, as an optional implementation, in order to further enhance the safety performance of the valve and prevent it from being maliciously opened or closed, a second encryption device is provided between the limiting rod 14 and the arc groove 15. The second encryption device includes: encryption holes 16 respectively provided at both ends of the arc groove 15. The limiting rod 14 is a magnetic rod. A second spring (not shown in the figure) is also provided in the second locking hole 13. One end of the second spring abuts against the limiting rod 14 and the other end abuts against the bottom of the second locking hole 13. The height of the limiting rod 14 is higher than the height of the second locking hole 13. Therefore, after it is driven by magnetic force to move into the second locking hole 13, it will not cause it to disengage from the arc groove 15.

[0026] Furthermore, as an optional implementation, in order to facilitate the fixed connection between the valve stem and the valve cover 7, the valve cover 7 and the ball valve stem 3 are fixedly connected by a pin 17.

[0027] Furthermore, as an optional implementation, in order to facilitate opening and closing the valve, the valve cover 7 is also provided with a locking block 18 to facilitate engagement with the handle for opening and closing the valve. The locking block 18 can be square, pentagonal, hexagonal, etc.

[0028] Furthermore, as an optional implementation, to increase the functionality of the valve, the valve cap 5 is also provided with a telescopic check device. The telescopic check device includes: a sleeve 19 locked onto the valve cap 5; a mounting bracket 20 on the sleeve 19 for fluid outflow; a sliding sleeve 21 on the mounting bracket 20; a check valve stem slidably mounted on the sliding sleeve 21; a check valve plate 22 on the check valve stem for sealing against the valve cap 5; a first sealing gasket 23 on the check valve plate 22; and a conical helical spring 24 sleeved on the check valve stem, one end resisting the check valve plate 22 and the other end resisting the mounting bracket 20. A telescopic tube 25 is provided inside the sleeve 19 through a sliding engagement device. A swivel nut 26 is rotatably provided at the other end of the telescopic tube 25 through a limiting engagement device. A first connecting thread 27 is provided inside the swivel nut 26.

[0029] Furthermore, as an optional implementation, in order to further enhance the sealing performance, the valve cap 5 is also provided with a check valve seat 28 for enhancing the sealing performance.

[0030] Furthermore, as an optional implementation, the sliding engagement device includes: a limiting ring block 29 disposed on the telescopic tube 25 and matching the inner diameter of the sleeve 19; a limiting ring groove 30 opened on the sleeve 19; a retaining ring 31 disposed in the limiting ring groove 30 for engaging with the limiting ring block 29; a plurality of second sealing grooves 32 opened on the limiting ring block 29; and a second sealing ring 33 disposed in the second sealing grooves 32.

[0031] Furthermore, as an optional implementation, in order to facilitate the rotation of the swivel nut 26, the limiting engagement device includes: a first limiting ring platform 34 disposed on the telescopic tube 25, and a second limiting ring platform 35 disposed inside the swivel nut 26 for engaging with the first limiting ring platform 34.

[0032] Furthermore, as an optional implementation, in order to enhance the sealing effect, a third sealing gasket 36 is provided inside the union nut 26 on the first limiting ring platform 34.

[0033] Furthermore, as an optional implementation, the valve body 1 is provided with a second connecting thread 37 to facilitate the installation of the valve.

[0034] Working principle: During installation, first install the valve body 1 on the pipeline through the second connecting thread 37, then connect it to the pipeline through the union nut 26 by pulling the telescopic tube 25, and it can be used immediately. In use, the user places the specially designed opening and closing handle on the valve cover 7 and engages it with the locking block 18. At this time, the locking rod 9 is affected by the magnetic force, pushing the first spring 10 to move towards the bottom of the first locking hole 8, thereby releasing the engagement with the first locking hole 11. At the same time, the limiting rod 14 is affected by the magnetic force, pushing the second spring to move towards the bottom of the second locking hole 13, thereby releasing the engagement with the encryption hole 16 and maintaining the engagement with the arc groove 15. At this time, the user can rotate the valve cover 790 degrees by the handle to fully open the ball valve. When the opening and closing handle is picked up, the limiting rod 14 is reset under the action of the second spring and inserted into the other encryption hole 16. The locking rod 9 is reset under the action of the first spring 10 and inserted into the first locking hole 11. This can prevent outsiders from closing the valve. At this time, the fluid flows through fluid channel 2 and valve ball 4, pushing the check valve stem to release the seal, thereby flowing into the subsequent pipeline; When the user wants to close the valve, he / she places the opening and closing handle on the valve cover 7 to release the engagement between the locking rod 9 and the second locking hole 12, as well as the engagement between the limit rod 14 and the encryption hole 16. At this time, the valve can be turned 90 degrees to close it completely. At this time, the check valve plate 22 will close quickly under the action of the conical helical spring 24 and the fluid that flows back due to the sudden closure of the valve, preventing the backflowing fluid from impacting the valve ball 4.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The embodiments described above are merely illustrative of several implementations of this utility model. While the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 magnetically locking ball valve, comprising a valve body, a fluid passage formed on the valve body, a ball valve stem rotatably disposed on the valve body, and a valve ball disposed within the valve body, wherein one end of the ball valve stem located within the valve body engages with the valve ball, and the valve body is further provided with a valve cap for positioning the valve ball, wherein a first sealing ring is provided between the valve cap and the valve ball, and between the valve body and the valve ball, characterized in that: The valve body is also provided with a valve cover, which is connected to the ball valve stem to drive the valve stem to rotate. A first encryption device is also provided between the valve cover and the valve body to prevent the valve cover from being opened or closed at will.

2. The magnetic locking ball valve according to claim 1, characterized in that: The first encryption device includes: a first locking hole on the valve body, a locking rod in the first locking hole, a first spring in the first locking hole, one end of the first spring abutting against the locking rod and the other end abutting against the bottom of the first locking hole, a first locking hole on the valve cover for inserting the locking rod, a second locking hole on the valve cover for inserting the locking rod, the central angle formed by the axis connecting the first locking hole and the second locking hole to the axis of the ball valve stem is 90 degrees, and the locking rod is a magnetic rod.

3. A magnetic locking ball valve according to claim 1, characterized in that: A limiting device is also provided between the valve body and the valve cover to prevent the user from opening or closing the valve in an incomplete manner.

4. A magnetic locking ball valve according to claim 3, characterized in that: The limiting device includes: a second locking hole on the valve body and a limiting rod in the second locking hole. The valve cover is provided with an arc-shaped groove and the central angle formed by the connection of the two ends of the arc-shaped groove to the axis of the ball valve stem is 90 degrees. One end of the limiting rod is located in the second locking hole and the other end is located in the arc-shaped groove.

5. A magnetic locking ball valve according to claim 4, characterized in that: A second encryption device is also provided between the limiting rod and the arc-shaped groove.

6. A magnetic locking ball valve according to claim 5, characterized in that: The second encryption device includes: encryption holes respectively located at both ends of the arc-shaped groove; the limiting rod is a magnetic rod; and a second spring is also provided in the second locking hole, with one end of the second spring abutting against the limiting rod and the other end abutting against the bottom of the second locking hole.

7. A magnetic locking ball valve according to claim 1, characterized in that: The valve cover and the ball valve stem are fixedly connected by a pin.

8. A magnetic locking ball valve according to claim 1, characterized in that: The valve cover is also equipped with a locking block to facilitate engagement with the handle for opening and closing the valve.

9. A magnetic locking ball valve according to claim 1, characterized in that: The valve cap is also equipped with a telescopic check device.

10. A magnetic locking ball valve according to claim 9, characterized in that: The telescopic check device includes: a sleeve locked on the valve cap; a mounting bracket on the sleeve for fluid outflow; a sliding sleeve on the mounting bracket; a check valve stem slidably mounted on the sliding sleeve; a check valve plate on the check valve stem for sealing against the valve cap; a first sealing gasket on the check valve plate; and a conical helical spring mounted on the check valve stem, one end resisting the check valve plate and the other end resisting the mounting bracket. A telescopic tube is provided inside the sleeve via a sliding engagement device, and a swivel nut is rotatably provided at the other end of the telescopic tube via a limiting engagement device. The swivel nut has a first connecting thread.

11. A magnetic locking ball valve according to claim 10, characterized in that: The valve cap is also equipped with a check valve seat to enhance sealing.

12. A magnetic locking ball valve according to claim 10, characterized in that: The sliding engagement device includes: a limiting ring block disposed on the telescopic tube and matching the inner diameter of the sleeve; a limiting ring groove opened on the sleeve; a retaining ring disposed in the limiting ring groove for engaging with the limiting ring block; several second sealing grooves opened on the limiting ring block; and a second sealing ring disposed in the second sealing groove.

13. A magnetic locking ball valve according to claim 10, characterized in that: The limiting engagement device includes: a first limiting ring platform disposed on the telescopic tube, and a second limiting ring platform disposed in the swivel nut for engaging with the first limiting ring platform.

14. A magnetic locking ball valve according to claim 13, characterized in that: A third sealing gasket is provided inside the live joint nut on the first limiting ring platform.

15. A magnetic locking ball valve according to claim 1, characterized in that: The valve body is provided with a second connecting thread.

Images