Multi-station safety valve detection device
By designing a multi-position safety valve testing device, the problem of low testing efficiency in existing technologies has been solved, enabling efficient and stable testing of multiple valve bodies and reducing the frequency of disassembly and assembly and the complexity of wiring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN EASTOP IND EQUIP CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-05-19
AI Technical Summary
Existing safety valve testing methods require frequent disassembly and reassembly, which is inefficient and cannot efficiently test multiple valve bodies.
Design a multi-station safety valve testing device, comprising a base, a limiting plate, a limiting component, and a testing component, capable of simultaneously testing multiple safety valves. The valve body is stably fixed using bolt connections, a motor-driven threaded rod, and a limiting ring. It is equipped with pressure sensors and displacement sensors for status detection, and the wire hole design avoids messy wiring.
It improves the efficiency of parallel testing of multiple safety valves, reduces downtime, ensures the stability and efficiency of testing, and avoids the problem of messy wires and conduits.
Smart Images

Figure CN224262802U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety valve testing technology, specifically to a multi-position safety valve testing device. Background Technology
[0002] A safety valve, also known as a pressure relief valve, is a valve that is kept closed by a spring, counterweight, or other means, and automatically opens when the pressure exceeds a given value. It belongs to the category of automatic valves.
[0003] Safety valve testing is a crucial step in ensuring the safe operation of industrial systems. Its main function is to automatically release pressure when the system pressure exceeds a set value to prevent equipment damage or explosion. Regular metrological calibration testing is essential to ensure the accuracy and reliability of safety valves.
[0004] In the existing technology, pressure testing of safety valves requires fixing them on a test platform and connecting corresponding pressure pipelines and pressure testing devices to the first and second interfaces of the safety valve body. The operation is cumbersome, and frequent disassembly and assembly are required when testing multiple valve bodies, resulting in low efficiency and room for technological improvement. Utility Model Content
[0005] This invention aims to solve the aforementioned technical problem of low efficiency caused by frequent disassembly and assembly when testing multiple valve bodies, and provides a multi-position safety valve testing device.
[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a multi-position safety valve testing device, including a base, the base including a hollow base and a cover plate, which are connected by bolts; the base is provided with support columns at the four corners, and the upper ends of the support columns are connected to a top plate; it also includes a limiting plate; the movable position is located between the top plate and the base;
[0007] It also includes a limiting component located between the base and the limiting plate; including several mounting slots on the base, each of which is threaded with a valve body; the limiting plate is provided with a through groove that can accommodate the valve body, and an elastic limiting ring is provided inside the through groove;
[0008] It also includes a detection component; the mounting groove is provided with a lower interface corresponding to the first interface of the valve body, and the lower interface is connected to a first pressure tube extending out of the base; the second interface of the valve body is sealed to a second pressure tube, and both the second pressure tube and the first pressure tube are provided with pressure sensors; a displacement sensor is provided on the outer side of the upper end of the valve body.
[0009] Furthermore, each of the two sides of the limiting plate is provided with an ear plate at its middle end, and each ear plate is provided with a threaded hole; each threaded hole is threadedly connected to a threaded rod, and the lower end of each threaded rod is rotatably connected to the base; a motor capable of driving the threaded rod to rotate is provided on the top plate and near both sides.
[0010] Furthermore, the limiting plate includes a grid-shaped frame and several mounting plates.
[0011] Furthermore, a sealing gasket is provided between the lower interface and the first interface of the valve body; a sealing gasket is provided between the second pressure pipe and the second interface of the valve body.
[0012] Furthermore, the limiting plate has a wire hole one at its middle end, and the base has a wire hole two corresponding to the wire hole one at its upper middle end; the base is equipped with a controller that is electrically connected to the pressure sensor and the displacement sensor, and the controller is connected to an external display device.
[0013] The advantages of this utility model compared with the prior art are as follows:
[0014] It has multiple workstations, which can simultaneously test multiple safety valves, improve parallel testing capabilities, increase the efficiency of simultaneous operation, and reduce downtime;
[0015] The first and second pressure pipes, as well as the related wires, all have corresponding positions to avoid the problem of messy wires and conduits when multiple workstations are operating simultaneously. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model.
[0018] Figure 3 This is a schematic diagram of the base structure of this utility model.
[0019] Figure 4 This is a schematic diagram of the limiting plate structure of this utility model.
[0020] Figure 5 This is a schematic diagram of the disassembled structure of the limiting plate of this utility model.
[0021] As shown in the figure: 1. Base, 2. Support column, 3. Top plate, 4. Limiting plate, 5. Ear plate, 6. Threaded hole, 7. Threaded rod, 8. Motor, 9. Frame, 10. Mounting plate, 11. Mounting groove, 12. Valve body, 13. Through groove, 14. Elastic limiting ring, 15. Lower interface, 16. First pressure tube, 17. Second pressure tube, 18. Displacement sensor, 19. Wire hole one, 20. Wire hole two. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings.
[0023] Example 1, in conjunction with Appendix Figure 1 , 2 A multi-position safety valve testing device includes a base 1, which includes a hollow base and a cover plate connected by bolts; so that there is an installation space inside the base 1 to accommodate a number of first pressure tubes 15 mentioned below.
[0024] The base 1 has four supporting columns 2 at its four corners. The upper ends of the supporting columns 2 are connected to the top plate 3. The top plate 3 provides support and installation position for the motor 8 mentioned below. It also includes a limiting plate 4, which moves between the top plate 3 and the base 1. The limiting plate 4 includes a grid-shaped frame 9 and several mounting plates 10, so that the limiting plate 4 has grid-shaped support and improves the structural strength.
[0025] Specifically, the limit plate 4 has ear plates 5 at the middle of both sides, and each ear plate 5 has a threaded hole 6; each threaded hole 6 is threadedly connected to a threaded rod 7, and the lower end of each threaded rod 7 is rotatably connected to the base 1; the top plate 3 is provided with a motor 8 that can drive the threaded rod 7 to rotate on both sides; thus, the motor 8 drives the threaded rod 7 to rotate, so that the limit plate 4 can move up and down with the rotation of the threaded rod 7, thereby restricting or releasing the upper end of the valve body 12.
[0026] Combined with appendix Figure 1 , 2 3, 4, and 5 also include a limiting component located between the base 1 and the limiting plate 4. Specifically, this includes several mounting grooves 11 on the base 1, each groove 11 having a valve body 12 threadedly connected to it. Each groove 11 has several mounting holes corresponding to the flanges at the lower end of the valve body 12 for easy installation. Additionally, a sealing gasket is provided between the lower interface 15 and the first interface of the valve body 12. During installation, the sealing gasket is compressed to deform it, achieving a good seal and preventing subsequent air leakage. Based on the above structure, the limiting plate 4 has a through groove 13 that can accommodate the valve body 12. An elastic limiting ring 14 is provided inside the through groove 13, which can compress and limit the upper end of the valve body 12, making it more stable.
[0027] Combined with appendix Figure 1 , 23. It also includes a detection component; specifically, the mounting groove 11 is provided with a lower interface 15 corresponding to the first interface of the valve body 12, and the lower interface 15 is connected to a first pressure pipe 16 extending out of the base 1; the second interface of the valve body 12 is sealed to a second pressure pipe 17, and a sealing gasket is provided between the second pressure pipe 17 and the second interface of the valve body 12 to improve the sealing performance of the connection; both the second pressure pipe 17 and the first pressure pipe 16 are provided with pressure sensors, and the working status of the valve body 12 under normal pressure range and whether there is air leakage are detected by the first pressure pipe 16 connected to the external air pump, the second pressure pipe 17 with an open end, and the corresponding pressure sensor;
[0028] In addition, displacement sensors 18 are provided on the outer side of the upper end of the valve body 12; when the pressure of the valve body 12 is too high and causes the whole body to vibrate and shift, it can be detected in time by the displacement sensors 18.
[0029] In addition, the limit plate 4 has a wire hole 19 in the middle, and the base 1 has a wire hole 20 corresponding to the wire hole 19 in the middle. The base 1 has a controller that is electrically connected to the pressure sensor and the displacement sensor 18. The controller is connected to an external display device. Multiple wires are stored through the wire hole 19 and the wire hole 20 to avoid the phenomenon of messy wires when detecting multiple positions and multiple valve bodies.
[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A multi-station safety valve testing apparatus, characterized by: Includes a base (1), which includes a hollow base and a cover plate connected by bolts; the base (1) has four supporting columns (2) at its four corners, and the upper ends of the supporting columns (2) are connected to a top plate (3); also includes a limiting plate (4); the movable position is located between the top plate (3) and the base (1); It also includes a limiting component located between the base (1) and the limiting plate (4); including a plurality of mounting grooves (11) provided on the base (1), each of which is threadedly connected to a valve body (12); the limiting plate (4) is provided with a through groove (13) that can accommodate the valve body (12), and an elastic limiting ring (14) is provided inside the through groove (13); It also includes a detection component; the mounting groove (11) is provided with a lower interface (15) corresponding to the first interface of the valve body (12), the lower interface (15) is connected to a first pressure tube (16) extending out of the base (1); the second interface of the valve body (12) is sealed to a second pressure tube (17), and pressure sensors are provided on both the second pressure tube (17) and the first pressure tube (16); displacement sensors (18) are provided on the outer side of the upper end of the valve body (12).
2. The multi-station safety valve testing device of claim 1, wherein: The limiting plate (4) has ear plates (5) at the middle of both sides, and each ear plate (5) has a threaded hole (6); each threaded hole (6) is threaded with a threaded rod (7), and the lower end of each threaded rod (7) is rotatably connected to the base (1); the top plate (3) is provided with a motor (8) that can drive the threaded rod (7) to rotate on both sides.
3. The multi-station safety valve testing device of claim 1, wherein: The limiting plate (4) includes a grid-shaped frame (9) and several mounting plates (10).
4. The multi-station safety valve testing device of claim 1, wherein: A sealing gasket is provided between the lower interface (15) and the first interface of the valve body (12); a sealing gasket is provided between the second pressure pipe (17) and the second interface of the valve body (12).
5. The multi-station safety valve testing device of claim 1, wherein: The limiting plate (4) has a wire hole 1 (19) in the middle, and the base (1) has a wire hole 2 (20) corresponding to the wire hole 1 (19) in the middle. The base (1) is equipped with a controller that is electrically connected to the pressure sensor and the displacement sensor (18), and the controller is connected to an external display device.