Clamping device for valve pressure test
By adjusting the position and angle of the movable plate using a support mechanism and an electric push rod, the problem of existing devices being unable to adapt to large-sized valves is solved, achieving stable clamping and water conservation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN VOLANT VALVE MFG CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-21
AI Technical Summary
Existing valve pressure testing clamping devices cannot effectively hold valves of a limited size or model, and cannot accommodate larger valves.
The position and angle of the movable plate are adjusted by a support mechanism and an electric push rod. Synchronous tilting and clamping are achieved through the support guide rod. Combined with the sealing mechanism and water tank design, it can adapt to valves of different sizes, and the height and position can be adjusted by the electric push rod.
It achieves stable clamping of valves of different sizes, improves practicality, saves manpower, and avoids waste by reusing water resources through the water tank.
Smart Images

Figure CN224144413U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of valve technology, specifically relating to a clamping device for valve pressure testing. Background Technology
[0002] Valves are commonly used components. After manufacturing, valves undergo a series of quality inspections to ensure their proper functioning. Valve pressure testing is a common testing method.
[0003] Patent application (publication number: CN218984518U) discloses a clamping device for valve pressure testing, including a main body mechanism, a positioning mechanism, a locking mechanism, and a clamping mechanism. The main body mechanism has a C-shaped structure, with a locking mechanism on the inner wall of its top and positioning mechanisms on both sides of its inner wall of the bottom. The clamping mechanism is located near the end of the positioning mechanism. The locking mechanism includes a connecting rod, a fixing plate, and a locking plate. One end of the connecting rod is connected to the main body mechanism, and the other end is connected to the fixing plate. The locking plates are connected to both sides of the bottom of the fixing plate. The locking plates are located on the upper vertical direction between the positioning mechanisms near their ends. In use, the locking mechanism performs vertical locking, and the clamping mechanism performs horizontal locking, forming a stable locking, ensuring the stability of the valve during testing, improving the valve testing efficiency, and saving manpower.
[0004] The aforementioned prior art has the following shortcomings in practical implementation: its locking mechanism cannot lock into larger valves, thus limiting the valve sizes and models it can fix. Utility Model Content
[0005] To address the problems mentioned in the background art, this utility model provides a clamping device for valve pressure testing, which solves the problem of the limited range of valve sizes and models that can be fixed.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for valve pressure testing, comprising:
[0007] Valve body;
[0008] A support mechanism 1 is located below the valve body, and the support mechanism 1 includes a slide rail;
[0009] A base plate is slidably installed inside the slide rail, and an electric push rod for driving lifting is fixedly installed on the upper surface of the base plate;
[0010] Mounting base one is fixedly installed at the top of electric actuator one; mounting base two is fixedly installed at the top of electric actuator one;
[0011] A square rod is fixedly connected to one side of the mounting base, and the square rod horizontally passes through the second mounting base;
[0012] A movable plate is installed in mounting base one and mounting base two, and a groove is provided on the side of the movable plate that contacts the valve body;
[0013] The electric push rod 2 is installed in the mounting base 1.
[0014] Optionally, the electric push rod 2 is movably connected to the movable plate, and a support guide rod is fixedly connected to one side of the movable plate.
[0015] Optional, also includes:
[0016] A sealing mechanism is located at both ends of the valve body;
[0017] Support mechanism two is fixedly connected to the sealing mechanism.
[0018] Optionally, a water tank is fixedly connected to the bottom of the first support mechanism and the inner side of the second support mechanism.
[0019] Optionally, the movable plates are arranged symmetrically in pairs, and the support guide rods are also symmetrically distributed. The support guide rods are fixedly connected to the movable plate on the left and pass through the movable plate on the right.
[0020] Optionally, the blocking mechanism further includes:
[0021] A conical rubber stopper, wherein a through hole is provided at the center of the conical rubber stopper;
[0022] The inlet pipe has a through hole that connects to it, and the diameter of the through hole is equal to the inner diameter of the inlet pipe.
[0023] Optionally, the second support mechanism further includes:
[0024] A support frame, on the inner side of which a motor is fixedly installed;
[0025] A bidirectional lead screw is rotatably connected to a support frame at both ends, and a power transmission mechanism is fixedly connected to the output end of the motor and one end of the bidirectional lead screw.
[0026] Optionally, the power transmission mechanism includes:
[0027] A pulley that is fixedly connected to the output end of the motor;
[0028] Pulley 2 is fixedly connected to one end of the bidirectional lead screw;
[0029] The transmission belt is fitted into the grooves of pulley one and pulley two.
[0030] Optionally, the second support mechanism further includes:
[0031] A connecting plate is threaded onto the surface of a bidirectional lead screw. The connecting plates are symmetrically arranged, and the symmetrical connecting plates are respectively fixedly connected to the sealing mechanisms located at both ends of the valve body. The connecting plates are also slidably connected to the support frame.
[0032] Optionally, the electric push rod two is symmetrically distributed front and back, and a connecting seat that is movably connected to the top of the electric push rod two is fixedly connected to one side of the movable plate. The bottom end of the electric push rod two is movably connected to the mounting seat one through a shaft.
[0033] Compared with the prior art, the beneficial effects of this utility model are:
[0034] When using this clamping device for valve pressure testing, mounting base two can slide horizontally via a square rod, thereby adjusting the distance between the two sets of movable plates. This allows the position of the movable plates to correspond to the length of the valve under test. The extension and retraction of the top of the electric push rod two facilitates the adjustment of the angle of the movable plates. The support guide rod facilitates the synchronous tilting of the two sets of movable plates, thus forming a clamping and fixing at the flange or surface of the valve body. The movable plates facilitate the clamping and fixing of valves of different sizes and models, improving practicality. The groove on the side of the movable plate increases the friction at the contact point with the valve body, helping to keep the valve body stable. Finally, the extension and retraction of electric push rod one facilitates the raising and lowering of the valve body, adjusting its height. Electric push rod one can slide within the slide rail via the base plate, facilitating its own position adjustment. Attached Figure Description
[0035] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this utility model, used together with the embodiments of this utility model to explain this utility model, and do not constitute a limitation on this utility model. In the drawings:
[0036] Figure 1 This is a complete structural schematic diagram of the present invention;
[0037] Figure 2 This is a front view of the present invention;
[0038] Figure 3 This is a rear view structural diagram of the present invention;
[0039] Figure 4 This is a partial cross-sectional view of the present invention.
[0040] In the picture:
[0041] 1. Valve body;
[0042] 2. Support mechanism one; 201. Slide rail; 202. Base plate; 203. Electric push rod one; 204. Mounting base one; 205. Mounting base two; 206. Square rod; 207. Movable plate; 208. Groove; 209. Electric push rod two; 210. Support guide rod; 211. Connecting seat;
[0043] 3. Sealing mechanism; 301. Conical rubber plug; 302. Through hole; 303. Water inlet pipe;
[0044] 4. Support mechanism two; 401. Support frame; 402. Motor; 403. Double-acting lead screw; 404. Pulley one; 405. Pulley two; 406. Transmission belt; 407. Connecting plate;
[0045] 5. Water tank. Detailed Implementation
[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0047] Please see Figure 1-4 The technical solution of this utility model is as follows: A clamping device for valve pressure testing, comprising:
[0048] Valve body 1;
[0049] Support mechanism 2 is located below valve body 1, and support mechanism 2 includes slide rail 201;
[0050] A base plate 202 is slidably installed inside the slide rail 201, and an electric push rod 203 for driving lifting is fixedly installed on the upper surface of the base plate 202.
[0051] Mounting base 204 is fixedly installed at the top of electric actuator 203; Mounting base 205 is fixedly installed at the top of electric actuator 203.
[0052] A square rod 206 is fixedly connected to one side of the mounting base 204, and the square rod 206 horizontally passes through the mounting base 205;
[0053] The movable plate 207 is installed in the mounting base 1 204 and the mounting base 205. The movable plate 207 has a groove 208 on the side that contacts the valve body 1.
[0054] The electric push rod 209 is installed in the mounting base 204.
[0055] Furthermore, the electric push rod 209 is movably connected to the movable plate 207, and a support guide rod 210 is fixedly connected to one side of the movable plate 207.
[0056] Furthermore, it also includes:
[0057] The sealing mechanism 3 is located at both ends of the valve body 1;
[0058] Support mechanism 2 4 is fixedly connected to sealing mechanism 3.
[0059] The present invention provides a technical solution in which, during use, the mounting base 205 can slide horizontally via the square rod 206, thereby adjusting the distance between the two sets of movable plates 207, so that the position of the movable plates 207 corresponds to the length of the valve to be measured. The electric push rod 209, with its top extension and retraction, facilitates the adjustment of the angle of the movable plates 207. The support guide rod 210 facilitates the synchronous tilting of the two sets of movable plates 207, thereby facilitating clamping and fixing of the flange or valve body surface of the valve body 1. The movable plates 207 are advantageous for clamping and fixing valves of different sizes and models, improving practicality. The groove 208 on the side of the movable plate 207 increases the friction at the contact point with the valve body 1, helping to keep the valve body 1 stable. Finally, the extension and retraction of the electric push rod 203 facilitates the raising and lowering of the valve body 1, adjusting its height. The electric push rod 203 can slide within the slide rail 201 via the base plate 202, facilitating its own position adjustment.
[0060] Furthermore, a water tank 5 is fixedly connected to the bottom of support mechanism 1 2 and the inner side of support mechanism 2 4.
[0061] Specifically, through the setting of water tank 5, it can collect the water that seeps out of valve body 1 during valve body 1 testing, so the water collected by water tank 5 can be reused, which is conducive to saving water resources and avoiding water waste.
[0062] Furthermore, the movable plates 207 are arranged symmetrically in pairs, and the support guide rods 210 are also symmetrically distributed. The support guide rods 210 are fixedly connected to the movable plate 207 on the left and pass through the movable plate 207 on the right.
[0063] Specifically, the support guide rod 210 facilitates the synchronous tilting movement of the symmetrically arranged movable plates 207, thereby enabling the simultaneous clamping and fixing or loosening of both ends of the valve body 1, and the support guide rod 210 can improve the stability of the right movable plate 207.
[0064] Furthermore, the blocking mechanism 3 also includes:
[0065] A conical rubber stopper 301 has a through hole 302 at its center;
[0066] The inlet pipe 303 has a through hole 302 connected to it, and the diameter of the through hole 302 is equal to the inner diameter of the inlet pipe 303.
[0067] Specifically, the conical rubber plug 301 helps to seal the openings at both ends of the valve body 1 to facilitate pressure testing. The inlet pipe 303 can be connected to an external water pipe, which allows test water to enter the valve body 1 through the inlet pipe 303 and the through hole 302, thereby enabling water flow and pressure testing.
[0068] Furthermore, supporting mechanism 2.4 also includes:
[0069] Support frame 401, with motor 402 fixedly installed on the inner side of support frame 401;
[0070] The bidirectional lead screw 403 is rotatably connected to the support frame 401 at both ends, and the output end of the motor 402 and one end of the bidirectional lead screw 403 are fixedly connected to a power transmission mechanism.
[0071] The power transmission mechanism includes:
[0072] Pulley 404 is fixedly connected to the output end of motor 402;
[0073] Pulley 405 is fixedly connected to one end of the double-acting lead screw 403;
[0074] The transmission belt 406 is fitted into the grooves of pulley 1 404 and pulley 2 405.
[0075] Supporting mechanism 2.4 also includes:
[0076] A connecting plate 407 is threaded onto the surface of the bidirectional lead screw 403. The connecting plates 407 are symmetrically arranged. The symmetrical connecting plates 407 are fixedly connected to the sealing mechanisms 3 located at both ends of the valve body 1, and the connecting plates 407 are slidably connected to the support frame 401.
[0077] Specifically, the output end of motor 402 can drive pulley 404 to rotate. Pulley 404 can drive pulley 405 to rotate via transmission belt 406. The diameter of pulley 405 is larger than that of pulley 404, so its rotation speed is slower than that of pulley 404. This allows the bidirectional lead screw 403 to rotate, and also prevents the bidirectional lead screw 403 from rotating too fast. The support frame 401 is rotatably connected to the bidirectional lead screw 403, which not only provides support but also does not affect its rotation. Since the connecting plate 407 is threadedly connected to the bidirectional lead screw 403 and the connecting plate 407 is symmetrically arranged, when the bidirectional lead screw 403 rotates, it can easily drive the symmetrical connecting plate 407 to slide in the opposite direction or relatively in the opposite direction along the support frame 401. This is beneficial for adjusting the position of the symmetrical blocking mechanism 3 and for making the symmetrical blocking mechanism 3 synchronously block or separate the end of the valve body 1.
[0078] Furthermore, the electric push rod 209 is symmetrically distributed front and back. A connecting seat 211 that is movably connected to the top of the electric push rod 209 is fixedly connected to one side of the movable plate 207. The bottom end of the electric push rod 209 is movably connected to the mounting seat 204 through a shaft.
[0079] Specifically, the top and bottom of the electric push rod 209 are movably connected, and the connecting seat 211 is fixedly connected to one side of the movable plate 207, replacing the movable plate 207 which is movably connected to the top of the electric push rod 209. This facilitates the electric push rod 209 to drive the movable plate 207 to change angle when it extends or retracts, and the electric push rod 209 can adapt to the tilting requirements of the movable plate 207 and provide a certain degree of support.
[0080] All electrical equipment in this device is powered by an external power source and its operation and shutdown are controlled by a matching control switch.
[0081] Finally, it should be noted that the above descriptions are merely preferred embodiments of this utility model and are not intended to limit the utility model. The selection and detailed description of these embodiments in this specification are for the purpose of better explaining the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A clamping device for valve pressure testing, characterized in that, include: Valve body (1); Support mechanism 1 (2) is located below the valve body (1), and the support mechanism 1 (2) includes a slide rail (201). A base plate (202) is slidably installed inside the slide rail (201), and an electric push rod (203) for driving lifting is fixedly installed on the upper surface of the base plate (202). Mounting base one (204) fixedly installed on the top of electric actuator one (203); Mounting base two (205) fixedly installed on the top of electric actuator one (203); A square rod (206) is fixedly connected to one side of the mounting base one (204), and the square rod (206) horizontally passes through the mounting base two (205); An movable plate (207) is installed in mounting base one (204) and mounting base two (205), and a groove (208) is provided on the side of the movable plate (207) that contacts the valve body (1). The electric push rod 2 (209) is installed in the mounting base 1 (204).
2. A clamping device for valve pressure testing according to claim 1, characterized in that: The electric push rod 2 (209) is movably connected to the movable plate (207), and a support guide rod (210) is fixedly connected to one side of the movable plate (207).
3. The clamping device for valve pressure testing of claim 1, wherein: Also includes: The sealing mechanism (3) is located at both ends of the valve body (1); Support mechanism 2 (4) is fixedly connected to the sealing mechanism (3).
4. The clamping device for valve pressure testing of claim 1, wherein: A water tank (5) is fixedly connected to the bottom of the first support mechanism (2) and the inside of the second support mechanism (4).
5. The clamping device for valve pressure testing of claim 2, wherein: The movable plates (207) are arranged symmetrically in pairs, and the support guide rods (210) are also symmetrically distributed. The support guide rods (210) are fixedly connected to the movable plate (207) on the left side and pass through the movable plate (207) on the right side.
6. The clamping device for valve pressure testing of claim 3, wherein: The blocking mechanism (3) also includes: A conical rubber stopper (301) has a through hole (302) at its center. The inlet pipe (303) has a through hole (302) that is connected to the inlet pipe (303). The diameter of the through hole (302) is equal to the inner diameter of the inlet pipe (303).
7. The clamping device for valve pressure testing of claim 3, wherein: The second support mechanism (4) also includes: A support frame (401) is provided, and a motor (402) is fixedly installed on the inner side of the support frame (401). The two ends of the bidirectional lead screw (403) are rotatably connected to the support frame (401), and the output end of the motor (402) and one end of the bidirectional lead screw (403) are fixedly connected to a power transmission mechanism.
8. A clamping device for valve pressure testing according to claim 7, characterized in that: The power transmission mechanism includes: A pulley (404) is fixedly connected to the output end of the motor (402); Pulley 2 (405) is fixedly connected to one end of the double-acting screw (403); The transmission belt (406) is fitted into the grooves of pulley one (404) and pulley two (405).
9. The clamping device for valve pressure testing of claim 3, wherein: The second support mechanism (4) also includes: A connecting plate (407) is threaded onto the surface of the bidirectional lead screw (403). The connecting plates (407) are symmetrically arranged. The symmetrical connecting plates (407) are fixedly connected to the sealing mechanisms (3) located at both ends of the valve body (1), and the connecting plates (407) are slidably connected to the support frame (401).
10. The clamping device for valve pressure testing of claim 1, wherein: The electric push rod two (209) is symmetrically distributed front and back. One side of the movable plate (207) is fixedly connected to a connecting seat (211) that is movably connected to the top of the electric push rod two (209). The bottom end of the electric push rod two (209) is movably connected to the mounting seat one (204) through a shaft.
Citation Information
Patent Citations
Clamping device for valve pressure test
CN218984518U