Buffer structure of valve
By designing the buffer structure of the valve and using the telescopic spring to buffer the pressure on the block, the problem of easy damage to the valve core in the prior art during the reversing process is solved, and effective protection of the valve core is achieved.
Patent Information
- Application Number
- CN202421474102.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-06-26
AI Technical Summary
During the reversing process of existing valves, the valve core in the direction of the liquid inlet is easily impacted by high-pressure fluid, and long-term use will cause damage to the valve core.
A valve buffer structure is designed, including a valve body and an adjustment mechanism. The pressing block is driven downward through the handle screw, pushing the buffer assembly to push the water inlet and outlet, and cushioning springs to buffer the pressure on the blocking block to ensure that the valve core is protected during the reversing process.
It effectively buffers the impact of high-pressure fluid on the valve core, extends the service life of the valve core, and prevents damage caused by impact.
Smart Images
Figure CN223035686U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to a buffer structure of a valve. Background Art
[0002] A valve is a device used to control the direction, pressure, and flow of a fluid in a fluid system. It is a device that allows the medium (liquid, gas, powder) in piping and equipment to flow or stop and control its flow. The valve can be controlled by a variety of transmission methods, such as manual, electric, hydraulic, pneumatic, turbine, electromagnetic, electromagnetic hydraulic, electro-hydraulic, gas-hydraulic, spur gear, bevel gear drive, etc., for simple opening or closing. The valve relies on a drive or automatic mechanism to make the opening and closing parts move up and down, slide, swing or rotate, thereby changing the size of its flow area to achieve its control function.
[0003] During the switching process of the existing valve, the valve core in the direction of the liquid inlet will be impacted by the high-pressure fluid, which may easily cause the valve core to be damaged by the impact for a long time. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides a buffer structure of a valve, which overcomes the deficiencies of the prior art and effectively solves the problem in the prior art that during the switching process of the valve, the valve core in the direction of the liquid inlet will be impacted by the high-pressure fluid, which may easily cause the valve core to be damaged by the impact for a long time.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A buffer structure of a valve includes a valve body and an adjusting mechanism, wherein the adjusting mechanism includes a handle screw, a pressure block connected to the bottom of the handle screw, buffer components located on both sides below the pressure block, and an adjusting component located below the two buffer components, wherein the buffer component includes a moving block, a connecting rod fixed to the outer wall of one side of the moving block, a round block fixed to one end of the connecting rod, movable rods distributed at equal distances along a ring on the outer wall of one side of the round block, and a blocking block fixed to one end of the movable rod.
[0007] By turning the handle screw, the handle screw drives the pressure block to move downward in the valve body. When the pressure block gradually moves downward and contacts the buffer assembly, the pressure block pushes the two moving blocks to both sides. The moving block drives the connecting rod to move along the adjusting plate, so that the two blocking blocks respectively block the water inlet and outlet ends of the valve body. In the blocking process, the flowing water at the water inlet end presses the blocking blocks, and the pressure on the blocking blocks is buffered by the elastic expansion and contraction of the telescopic spring. When the blocking block at one end of the water outlet of the valve body completes the blocking, the pressure in the valve body is the same as the pressure at the water inlet end, and the telescopic spring pushes the blocking block to block the water inlet end through elastic recovery.
[0008] Preferably, the handle screw rod is screwed to the valve body, and the pressing block is rotatably connected to the handle screw rod. The two buffer components are connected by a compression spring.
[0009] By rotating the handle screw rod, the handle screw rod drives the pressing block to move downward in the valve body, and pushes the two buffer components towards the water inlet and outlet.
[0010] Preferably, limit blocks are fixed to the other ends of the movable rods, and a telescopic spring is sleeved on the rod walls of the movable rods. The two ends of the telescopic spring are respectively abutted against the blocking block and the round block.
[0011] Through the contraction of the telescopic spring, the pressure on the blocking block is buffered. When the pressure in the valve body is the same as the pressure at the water inlet end, the telescopic spring elastically pushes the blocking block to block the water inlet end.
[0012] Preferably, the adjusting assembly includes a fixing frame, a bidirectional lead screw rotatably connected to the inner walls of both ends of the fixing frame, and adjusting plates screwed to both ends of the rod wall of the bidirectional lead screw.
[0013] The activities of the buffer components are supported by the two adjusting plates in the adjusting assembly.
[0014] Preferably, the adjusting plate and the movable rod are inserted and slid with each other, and the adjusting plate forms a sliding fit with the fixing frame.
[0015] After being pushed by the pressing block, the moving block drives the connecting rod to move along the adjusting plate.
[0016] Preferably, a worm gear is sleeved and fixed in the middle of the rod wall of the bidirectional lead screw, and a worm meshing with the top of the worm gear is rotatably connected to the fixing frame. The worm forms a rotational fit with the valve body through a sealed bearing.
[0017] By rotating the worm, the worm drives the bidirectional lead screw to rotate through the meshing worm gear. The bidirectional lead screw adjusts the position between the two adjusting plates. By changing the connection positions between the adjusting plates and the buffer components, the buffering force that the buffer components can provide is changed.
[0018] The beneficial effects of the present utility model are as follows:
[0019] When the briquette gradually contacts the buffer assembly downward, the briquette pushes the two moving blocks to both sides. The moving blocks drive the connecting rod to move along the adjusting plate, so that the two blocking blocks respectively block the water inlet and outlet ends of the valve body. During the blocking process, the flowing water at the water inlet end presses on the blocking block, and the elastic expansion and contraction of the telescopic spring buffers the pressure on the blocking block. When the blocking block at the water outlet end of the valve body completes the blocking, the pressure in the valve body is the same as the pressure at the water inlet end. The telescopic spring pushes the blocking block through elastic recovery to block the water inlet end, effectively solving the problem that in the prior art, during the commutation process of the valve, the valve core in the direction of the liquid inlet will be impacted by high-pressure fluid, and the valve core is easily damaged by the impact over a long time. Brief Description of the Drawings
[0020] Figure 1 It is a schematic diagram of the overall structure of a buffer structure of a valve proposed by the present utility model;
[0021] Figure 2 It is a schematic diagram of the structure of the adjusting mechanism of a buffer structure of a valve proposed by the present utility model;
[0022] Figure 3 It is a schematic diagram of the structure of the buffer assembly of a buffer structure of a valve proposed by the present utility model;
[0023] Figure 4 It is a schematic diagram of the structure of the adjusting assembly of a buffer structure of a valve proposed by the present utility model.
[0024] In the figure: 1, valve body; 2, adjusting mechanism; 3, handle screw; 4, briquette; 5, buffer assembly; 6, adjusting assembly; 7, moving block; 8, connecting rod; 9, round block; 10, movable rod; 11, telescopic spring; 12, limit block; 13, blocking block; 14, fixing frame; 15, bidirectional lead screw; 16, adjusting plate. Detailed Description of the Preferred Embodiments
[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0026] Embodiment:
[0027] Refer to Figures 1-4, A buffer structure for a valve, comprising a valve body 1 and an adjusting mechanism 2. The adjusting mechanism 2 includes a handle screw 3, a pressing block 4 connected to the bottom of the handle screw 3, buffer components 5 located on both sides below the pressing block 4, and an adjusting component 6 located below the two buffer components 5. The buffer component 5 includes a moving block 7, a connecting rod 8 fixed to the outer wall of one side of the moving block 7, a round block 9 fixed to one end of the connecting rod 8, movable rods 10 evenly distributed along the ring on the outer wall of one side of the round block 9, and a blocking block 13 fixed to one end of the movable rod 10;
[0028] The handle screw 3 is screwed to the valve body 1, and the pressing block 4 is rotatably connected to the handle screw 3. The two buffer components 5 are connected by a compression spring. By rotating the handle screw 3, the handle screw 3 drives the pressing block 4 to move downward in the valve body 1, pushing the buffer components 5 on both sides towards the water inlet and outlet. Limit blocks 12 are fixed to the other ends of the movable rods 10, and a telescopic spring 11 is sleeved on the rod wall of the movable rod 10. The two ends of the telescopic spring 11 are respectively in contact with the blocking block 13 and the round block 9. By the contraction of the telescopic spring 11, the pressure received by the blocking block 13 is buffered. When the pressure in the valve body 1 is the same as the pressure at the water inlet end, the telescopic spring 11 elastically pushes the blocking block 13 to block the water inlet end;
[0029] The adjusting component 6 includes a fixed frame 14, a bidirectional lead screw 15 rotatably connected to the inner walls of both ends of the fixed frame 14, and adjusting plates 16 screwed to both ends of the rod wall of the bidirectional lead screw 15. The activities of the buffer components 5 are supported by the two adjusting plates 16 in the adjusting component 6. The adjusting plates 16 are inserted and slid with the movable rods 10, and the adjusting plates 16 form a sliding fit with the fixed frame 14. After the moving block 7 is pushed by the pressing block 4, it drives the connecting rod 8 to move along the adjusting plate 16. A worm gear is sleeved and fixed in the middle of the rod wall of the bidirectional lead screw 15, and a worm meshing with the top of the worm gear and rotatably connected to the fixed frame 14 is provided. The worm forms a rotational fit with the valve body 1 through a sealed bearing. By rotating the worm, the worm drives the bidirectional lead screw 15 to rotate through the meshing worm gear, and the bidirectional lead screw 15 adjusts the position between the two adjusting plates 16. By changing the connection positions between the adjusting plates 16 and the buffer components 5, the buffering force that the buffer components 5 can provide is changed.
[0030] Working principle:
[0031] During operation, by rotating the handle screw 3, the handle screw 3 drives the pressing block 4 to move downward within the valve body 1. When the pressing block 4 gradually moves downward and contacts the buffer assembly 5, the pressing block 4 pushes the two moving blocks 7 towards both sides. The moving blocks 7 drive the connecting rod 8 to move along the adjusting plate 16, causing the two blocking blocks 13 to respectively block the inlet and outlet ends of the valve body 1. During the blocking process, the flowing water at the inlet end presses against the blocking block 13, and the elastic expansion and contraction of the telescopic spring 11 buffers the pressure received by the blocking block 13. When the blocking block at the outlet end of the valve body 1 completes the blocking, the pressure inside the valve body 1 is the same as that at the inlet end. The telescopic spring 11 elastically restores to push the blocking block 13 to block the inlet end.
[0032] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.
Claims
1. A valve buffer structure, comprising a valve body (1) and an adjusting mechanism (2), characterized in that: The adjusting mechanism (2) comprises a handle screw (3), a pressure block (4) connected to the bottom of the handle screw (3), buffer components (5) located on both sides below the pressure block (4), and an adjusting component (6) located below the two buffer components (5); the buffer component (5) comprises a moving block (7), a connecting rod (8) fixed to the outer wall of one side of the moving block (7), a round block (9) fixed to one end of the connecting rod (8), movable rods (10) distributed at equal distances along a ring shape on the outer wall of one side of the round block (9), and a blocking block (13) fixed to one end of the movable rod (10).
2. A valve buffer structure according to claim 1, characterized in that: The handle screw (3) is threadedly connected to the valve body (1), and the pressure block (4) is rotationally connected to the handle screw (3), and the two buffer components (5) are connected via a compression spring.
3. A valve buffer structure according to claim 1, characterized in that: The other end of the movable rod (10) is fixed with a limiting block (12), and the rod wall of the movable rod (10) is sleeved with a telescopic spring (11), and the two ends of the telescopic spring (11) are respectively in contact with the blocking block (13) and the round block (9).
4. A valve buffer structure according to claim 1, characterized in that: The adjustment assembly (6) comprises a fixing frame (14), a bidirectional screw rod (15) rotatably connected to the inner walls at both ends of the fixing frame (14), and an adjustment plate (16) screwed to the two ends of the rod wall of the bidirectional screw rod (15).
5. A valve buffer structure according to claim 4, characterized in that: The adjustment plate (16) and the movable rod (10) are plugged into and slidably connected with each other, and the adjustment plate (16) and the fixing frame (14) form a sliding fit.
6. A valve buffer structure according to claim 4, characterized in that: A worm wheel is sleeved and fixed to the middle section of the rod wall of the bidirectional screw rod (15), and a worm screw which is rotatably connected to the fixing frame (14) is meshed with the top of the worm wheel, and the worm screw is rotatably matched with the valve body (1) via a sealing bearing.