Stop valve with buffer structure
By designing a buffer structure in the shut-off valve, and using components such as buffer plate, pinch column and buffer spring to buffer the valve disc, the damage and liquid exposure problems caused by liquid impact during use of the existing shut-off valve is solved, and the problem of liquid exposure is achieved. Better sealing effect and service life.
Patent Information
- Application Number
- CN202421048084.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-07
AI Technical Summary
During use, the existing shut-off valves have impacts on the valve disc and valve body due to the instantaneous cut-off of the flowing liquid, resulting in damage to the valve and exposure of the liquid, affecting normal use.
A shut-off valve with a buffer structure is designed. By installing a buffer mechanism on the outer surface of the valve body, including a buffering plate, a pinch column, a buffer spring and other components, the mutual cooperation of these components can buffer the valve disc when the liquid flows. Improve sealing effect and reduce impact.
Through the design of the buffer structure, the impact force of liquid flow on the valve is effectively reduced, the valve damage and liquid exposure is avoided, the valve life is extended, and the convenience of use is improved.
Smart Images
Figure CN222437054U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stop valves, in particular to a stop valve with a buffer structure. Background Art
[0002] The stop valve, also known as the intercept valve, is one of the most widely used valves. The reason why it is so popular is that the friction between the sealing surfaces during opening and closing is small, it is relatively durable, the opening height is not large, it is easy to manufacture and maintain, and it is not only suitable for medium and low pressures, but also for high pressures. The closing principle of the stop valve is to rely on the valve stem pressure to make the valve disc sealing surface fit closely with the valve seat sealing surface to prevent the flow of the medium.
[0003] The existing technology has the following problems:
[0004] When the existing stop valve is in use, the flow channel is instantly cut off by the valve disc, and the flowing liquid will cause a great impact on the valve disc and the inside of the valve body. Under long-term repeated impact, the stop valve will be damaged and liquid will be exposed, affecting the normal use of the stop valve. Utility Model Content
[0005] The utility model provides a stop valve with a buffer structure to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A stop valve with a buffer structure comprises a valve body, buffer mechanisms are fixedly installed on both upper and lower sides of the outer surface of the valve body, a valve cover is fixedly installed on the top of the valve body, a valve stem is threadedly connected to the middle of the valve cover, a hand wheel is fixedly connected to the top of the valve stem, the bottom end of the valve stem passes through the interior of the valve body and is fixedly connected to a valve disc, a partition plate is fixedly connected to the interior of the valve body, a conducting hole which passes through the partition plate from top to bottom is opened in the middle of the conducting hole, and the valve disc is slidably inserted on the upper inner side of the conducting hole.
[0008] The valve disc includes a closing card platform, which is fixedly connected to the bottom end of the valve stem, and the outer surface of the closing card platform is fixedly connected to a right-angle sealing gasket, the bottom of the closing card platform is provided with a buffer pressure plate 2, and the top of the buffer pressure plate 2 is fixedly connected to a tightening column 2, a sliding groove 1 is opened inside the closing card platform, the top of the tightening column 2 penetrates into the interior of the sliding groove 1 and is fixedly connected to a buffer spring 2, the inner surface of the sliding groove 1 is provided with sliding grooves 2 on both sides, the outer surface of the tightening column 2 is movably connected to a rotating push rod on both sides, a sliding groove 3 that penetrates front and back is opened in the middle of the rotating push rod, and the sliding push rod is movably connected to the end of the sliding groove 3 away from the tightening column 2, the sliding push rod is slidably connected to the interior of the sliding groove 2 and the end away from the rotating push rod is fixedly connected to a right-angle pressure plate, and the right-angle pressure plate is fixedly connected to the outer surface of the right-angle sealing gasket.
[0009] A further improvement of the technical solution of the utility model is that a positioning column is slidably connected to one end of the sliding groove three near the tightening column two, and the front and rear sides of the positioning column are respectively fixedly connected to the front and rear sides of the inner wall of the sliding groove two.
[0010] A further improvement of the technical solution of the utility model is that the buffer mechanism includes a connecting sleeve, and the two connecting sleeves are respectively fixedly connected to the upper and lower sides of the outer surface of the valve body, a sliding groove four is opened inside the connecting sleeve, and a sliding groove four is opened at one end of the connecting sleeve close to the valve body, and a buffer pressure plate one is slidably connected inside the sliding groove four.
[0011] A further improvement of the technical solution of the utility model is that: a side of the buffer pressure plate 1 away from the valve body is fixedly connected with a tightening column 1, a sliding groove 5 is opened inside the connecting sleeve, and one end of the tightening column 1 away from the buffer pressure plate 1 penetrates into the sliding groove 5 and is fixedly connected with the sliding pressure plate.
[0012] A further improvement of the technical solution of the utility model is that the sliding pressure plate is slidably connected to the inside of the sliding groove five, and a buffer spring one is fixedly connected to the side of the sliding pressure plate away from the tightening column one.
[0013] A further improvement of the technical solution of the utility model is that: the outer surface of the tightening column one is slidably connected with a sealing ring, and the sealing ring is fixedly connected to the inside of the sliding groove four and penetrates into the inside of the sliding groove five.
[0014] A further improvement of the technical solution of the utility model is that a plurality of ventilation slide grooves are provided in an annular array on the inner surface of the sliding groove five, a sliding pressure block is slidably connected inside the ventilation slide groove, and a hydraulic telescopic damping rod is fixedly connected to the side of the sliding pressure block close to the valve body.
[0015] A further improvement of the technical solution of the utility model is that: one end of the hydraulic telescopic damping rod away from the sliding pressure block is fixedly connected to one end of the inner wall of the ventilation slide groove close to the valve body, and a buffer spring three is provided on the outer surface of the hydraulic telescopic damping rod, and the buffer spring three is fixedly connected to one side of the sliding pressure block close to the valve body.
[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0017] 1. The utility model provides a stop valve with a buffer structure, through the mutual cooperation among a closing card table, a right-angle sealing gasket, a second buffer pressure plate, a second tightening column, a second buffer spring, a rotating push rod, a positioning column, a sliding push rod, and a right-angle pressure plate, when the flow channel is cut off by the valve disc, it will be sealed by the right-angle sealing gasket, the flow of liquid will cause an impact on the second buffer pressure plate, so that the second buffer pressure plate slides, and the second tightening column can squeeze the second buffer spring, so that the valve disc can be buffered, and at the same time, it can also drive the right-angle pressure plate to squeeze the right-angle sealing gasket, so that the sealing effect is better, the exposure of the liquid is avoided, and the use of the stop valve is convenient.
[0018] 2. The utility model provides a stop valve with a buffer structure. Through the mutual cooperation among a connecting sleeve, a buffer pressure plate, a tightening column, a sliding pressure plate, a sealing ring, a buffer spring, a ventilation slide groove, a sliding pressure block, a hydraulic telescopic damping rod and a buffer spring, when the flowing liquid causes an impact on the stop valve, the internal pressure will push the buffer pressure plate to slide, thereby squeezing the buffer spring through the sliding pressure plate, thereby buffering the impact of the liquid, and squeezing the buffer spring three through the sliding pressure block, so that the buffering effect is better, the pressure on the stop valve can be greatly reduced, the damage of the stop valve is avoided, and the use of the stop valve is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a schematic diagram of the structure of the valve body of the utility model;
[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the valve body of the utility model;
[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the valve disc of the utility model;
[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the buffer mechanism of the utility model;
[0023] Figure 5 It is an enlarged structural schematic diagram of the buffer mechanism of the utility model.
[0024] In the figure: 1. valve body; 11. partition plate; 2. buffer mechanism; 21. connecting sleeve; 22. buffer pressure plate 1; 23. tightening column 1; 24. sealing ring; 25. sliding pressure plate; 26. buffer spring 1; 27. ventilation slide; 271. sliding pressure block; 272. hydraulic telescopic damping rod; 273. buffer spring 3; 3. valve cover; 4. valve stem; 5. hand wheel; 6. valve disc; 61. closing card platform; 62. right-angle sealing gasket; 63. buffer pressure plate 2; 64. tightening column 2; 65. buffer spring 2; 66. rotating push rod; 67. positioning column; 68. sliding push rod; 69. right-angle pressure plate. DETAILED DESCRIPTION
[0025] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods:
[0026] like Figure 1-3 As shown, the utility model provides a stop valve with a buffer structure, including a valve body 1, buffer mechanisms 2 are fixedly installed on both upper and lower sides of the outer surface of the valve body 1, a valve cover 3 is fixedly installed on the top of the valve body 1, a valve stem 4 is threadedly connected to the middle of the valve cover 3, a hand wheel 5 is fixedly connected to the top of the valve stem 4, the bottom end of the valve stem 4 passes through the interior of the valve body 1 and is fixedly connected to a valve disc 6, a partition plate 11 is fixedly connected to the interior of the valve body 1, a conducting hole penetrating up and down is opened in the middle of the partition plate 11, the valve disc 6 is slidably inserted on the upper inner side of the conducting hole, the valve disc 6 includes a closing card platform 61, the closing card platform 61 is fixedly connected to the bottom end of the valve stem 4, a right-angle sealing gasket 62 is fixedly connected to the outer surface of the closing card platform 61, a buffer pressing plate 63 is arranged at the bottom of the closing card platform 61, a tightening column 64 is fixedly connected to the top of the buffer pressing plate 63, and a closing card platform 61 is fixedly connected to the bottom of the valve stem 4. A sliding groove 1 is provided inside the card closing platform 61, and the top end of the tightening column 2 64 penetrates into the interior of the sliding groove 1 and is fixedly connected with a buffer spring 2 65. Sliding grooves 2 are provided on both the left and right sides of the inner surface of the sliding groove 1, and rotating push rods 66 are movably connected to the top left and right sides of the outer surface of the tightening column 2 64. A sliding groove 3 that penetrates front and back is provided in the middle of the rotating push rod 66. A sliding push rod 68 is movably connected to the end of the sliding groove 3 away from the tightening column 2 64. The sliding push rod 68 is slidably connected to the interior of the sliding groove 2 and is fixedly connected to a right-angle pressing plate 69 at one end away from the rotating push rod 66. The right-angle pressing plate 69 is fixedly connected to the outer surface of the right-angle sealing gasket 62. A positioning column 67 is slidably connected to the end of the sliding groove 3 close to the tightening column 2 64, and the front and rear sides of the positioning column 67 are respectively fixedly connected to the front and rear sides of the inner wall of the sliding groove 2.
[0027] When the stop valve is in use, by rotating the hand wheel 5, the valve stem 4 can be driven to slide downward, so that the valve disc 6 can be inserted into the guide hole in the middle of the partition plate 11, so as to cut off the flow channel of the valve body 1, and it will be sealed by the right-angle sealing gasket 62. At the same time, the flow of liquid will impact the buffer pressure plate 2 63, so that the buffer pressure plate 2 63 can drive the tightening column 2 64 to slide inside the sliding groove 1, and can squeeze the buffer spring 2 65, so as to buffer the valve disc 6. At the same time, the tightening column 2 64 can drive the rotating push rod 66 to rotate around the positioning column 67, and can push the sliding push rod 68, so that the right-angle pressure plate 69 can squeeze the right-angle sealing gasket 62, so that the sealing effect is better, the liquid is avoided from being exposed, and the use of the stop valve is convenient.
[0028] like Figure 4-5 As shown, the utility model provides a stop valve with a buffer structure, the buffer mechanism 2 includes a connecting sleeve 21, two connecting sleeves 21 are respectively fixedly connected to the upper and lower sides of the outer surface of the valve body 1, a sliding groove four is provided inside the connecting sleeve 21, a sliding groove four is provided at one end of the connecting sleeve 21 close to the valve body 1, a buffer pressure plate 22 is slidably connected inside the sliding groove four, a side of the buffer pressure plate 22 away from the valve body 1 is fixedly connected with a tightening column 23, a sliding groove five is provided inside the connecting sleeve 21, an end of the tightening column 23 away from the buffer pressure plate 22 penetrates into the interior of the sliding groove five and is fixedly connected with a sliding pressure plate 25, the sliding pressure plate 25 is slidably connected inside the sliding groove five, and the sliding pressure plate 25 is away from the tightening column 23 A buffer spring 26 is fixedly connected to one side of the valve body 1, a sealing ring 24 is slidably connected to the outer surface of the tightening column 23, the sealing ring 24 is fixedly connected to the inside of the sliding groove 4 and penetrates into the inside of the sliding groove 5, a plurality of ventilation grooves 27 are provided in an annular array on the inner surface of the sliding groove 5, a sliding pressure block 271 is slidably connected to the inside of the ventilation groove 27, a side of the sliding pressure block 271 close to the valve body 1 is fixedly connected to an elliptical pressure telescopic damping rod 272, an end of the hydraulic telescopic damping rod 272 away from the sliding pressure block 271 is fixedly connected to an end of the inner wall of the ventilation groove 27 close to the valve body 1, a buffer spring 3 273 is provided on the outer surface of the hydraulic telescopic damping rod 272, and the buffer spring 3 273 is fixedly connected to the side of the sliding pressure block 271 close to the valve body 1;
[0029] When the flowing liquid impacts the stop valve, the internal pressure will push the buffer pressure plate 22 to slide inside the sliding groove four, so that the sliding pressure plate 25 can be pushed to slide inside the sliding groove five through the tightening column 23, and the buffer spring 26 can be squeezed to buffer the impact of the liquid. At the same time, the sliding pressure plate 25 will press the air inside the sliding groove five to enter the ventilation groove 27, so that the sliding pressure block 271 inside the ventilation groove 27 can be pushed, so that the sliding pressure block 271 can squeeze the buffer spring three 273 and the hydraulic telescopic damping rod 272, so that the buffering effect is better, which can greatly reduce the pressure on the stop valve, avoid damage to the stop valve, and make the stop valve more convenient to use.
[0030] The working principle of the stop valve with a buffer structure is described in detail below.
[0031] like Figure 1-5 As shown, when the stop valve is in use, by rotating the hand wheel 5, the valve stem 4 can be driven to slide downward, so that the valve disc 6 can be inserted into the guide hole in the middle of the partition plate 11, so that the flow channel of the valve body 1 is cut off, and it will be sealed by the right-angle sealing gasket 62. At the same time, the flow of liquid will impact the buffer pressure plate 63, so that the tightening column 64 can squeeze the buffer spring 65, so that the valve disc 6 can be buffered, and at the same time, the right-angle pressure plate 69 can squeeze the right-angle sealing gasket 62, so that the seal is The effect is better and the liquid is avoided from being exposed. At the same time, the pressure inside the valve body 1 will push the buffer pressure plate 22 to slide, so that the sliding pressure plate 25 can be pushed by the tightening column 23 to squeeze the buffer spring 26, thereby buffering the impact of the liquid. At the same time, the sliding pressure plate 25 will press the air inside the sliding groove five to enter the inside of the ventilation groove 27, so that the sliding pressure block 271 can be pushed to squeeze the buffer spring three 273, which can greatly reduce the pressure on the stop valve, avoid damage to the stop valve, and make the stop valve more convenient to use.
[0032] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A stop valve with a buffer structure, characterized in that: The invention comprises a valve body (1), wherein a buffer mechanism (2) is fixedly mounted on both upper and lower sides of the outer surface of the valve body (1), a valve cover (3) is fixedly mounted on the top of the valve body (1), a valve stem (4) is threadedly connected to the middle of the valve cover (3), a hand wheel (5) is fixedly connected to the top of the valve stem (4), the bottom end of the valve stem (4) penetrates into the interior of the valve body (1) and is fixedly connected to a valve flap (6), a partition plate (11) is fixedly connected to the interior of the valve body (1), a conducting hole which penetrates up and down is opened in the middle of the partition plate (11), and the valve flap (6) is slidably inserted on the upper inner side of the conducting hole; The valve flap (6) includes a closing card platform (61), the closing card platform (61) is fixedly connected to the bottom end of the valve stem (4), the outer surface of the closing card platform (61) is fixedly connected to a right-angle sealing gasket (62), the bottom of the closing card platform (61) is provided with a buffer pressure plate 2 (63), the top of the buffer pressure plate 2 (63) is fixedly connected to a tightening column 2 (64), the interior of the closing card platform (61) is provided with a sliding groove 1, the top of the tightening column 2 (64) penetrates into the interior of the sliding groove 1 and is fixedly connected to a buffer spring 2 (65), the sliding groove 1 A sliding groove 2 is provided on both sides of the inner surface, and a rotating push rod (66) is movably connected to the left and right sides of the top of the outer surface of the tightening column 2 (64). A sliding groove 3 is provided in the middle of the rotating push rod (66) and runs through the front and back. A sliding push rod (68) is movably connected to the end of the sliding groove 3 away from the tightening column 2 (64). The sliding push rod (68) is slidably connected to the inside of the sliding groove 2 and is fixedly connected to a right-angle pressure plate (69) at one end away from the rotating push rod (66). The right-angle pressure plate (69) is fixedly connected to the outer surface of the right-angle sealing gasket (62).
2. A stop valve with a buffer structure according to claim 1, characterized in that: A positioning column (67) is slidably connected to one end of the interior of the sliding groove three near the tightening column two (64), and the front and rear sides of the positioning column (67) are respectively fixedly connected to the front and rear sides of the inner wall of the sliding groove two.
3. The stop valve with a buffer structure according to claim 1, characterized in that: The buffer mechanism (2) comprises a connecting sleeve (21), wherein two connecting sleeves (21) are respectively fixedly connected to the upper and lower sides of the outer surface of the valve body (1), a sliding groove four is provided inside the connecting sleeve (21), a sliding groove four is provided at one end of the connecting sleeve (21) close to the valve body (1), and a buffer pressure plate one (22) is slidably connected inside the sliding groove four.
4. The stop valve with a buffer structure according to claim 3, characterized in that: A side of the buffer pressure plate (22) away from the valve body (1) is fixedly connected to a tightening column (23); a sliding groove (5) is provided inside the connecting sleeve (21); an end of the tightening column (23) away from the buffer pressure plate (22) passes through the interior of the sliding groove (5) and is fixedly connected to a sliding pressure plate (25).
5. The stop valve with a buffer structure according to claim 4, characterized in that: The sliding pressure plate (25) is slidably connected inside the sliding groove five, and a buffer spring one (26) is fixedly connected to the side of the sliding pressure plate (25) away from the tightening column one (23).
6. The stop valve with a buffer structure according to claim 4, characterized in that: The outer surface of the first tightening column (23) is slidably connected with a sealing ring (24), and the sealing ring (24) is fixedly connected to the inside of the sliding groove four and penetrates into the inside of the sliding groove five.
7. The stop valve with a buffer structure according to claim 4, characterized in that: The inner surface of the sliding groove 5 is provided with a plurality of ventilation sliding grooves (27) in an annular array, the interior of the ventilation sliding groove (27) is slidably connected to a sliding pressure block (271), and the sliding pressure block (271) is fixedly connected to a hydraulic telescopic damping rod (272) on a side close to the valve body (1).
8. The stop valve with a buffer structure according to claim 7, characterized in that: One end of the hydraulic telescopic damping rod (272) away from the sliding pressure block (271) is fixedly connected to one end of the inner wall of the ventilation slide groove (27) close to the valve body (1), and a buffer spring three (273) is provided on the outer surface of the hydraulic telescopic damping rod (272), and the buffer spring three (273) is fixedly connected to one side of the sliding pressure block (271) close to the valve body (1).