A compressive strength testing device for a pressure regulating valve

Abstract

The present invention discloses a compressive strength testing device for a pressure regulating valve, which belongs to the technical field of pressure regulating valve testing. It includes a pressure generating mechanism, a pressure control and regulation mechanism, a testing platform, a pressure sensor group, and a data acquisition and processing system; the pressure control and regulation mechanism is used to control the stamping pressure, frequency, and stroke of the pressure generating mechanism; a detection chamber is provided on the top of the testing platform, and the pressure sensor group is provided at different positions in the detection chamber; a clamping mechanism is provided in the detection chamber, and an adjustment positioning assembly is used to adjust the angle of the positioning body. The present invention can comprehensively monitor the pressure distribution of the pressure regulating valve when it is under pressure, ensure the accuracy and reliability of the detection data, and provide an accurate basis for the evaluation of the compressive strength of the pressure regulating valve. The adjusting rod cooperates with the rack structure and the gear to achieve precise adjustment of the angle of the positioning body, so that the arc edges on both sides of the positioning body can be in stable contact with the pressure regulating valve, thereby improving the stability of the pressure regulating valve fixation and facilitating accurate detection of the pressure regulating valve's anti-stamping ability.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure regulating valve detection, and more particularly to a compressive strength detection device for a pressure regulating valve. Background Art

[0002] Pressure regulating valves, as key components in numerous industrial sectors, such as petrochemicals, gas transmission, and water conservancy and hydropower, perform the crucial function of controlling and regulating fluid pressure. Their operating environments often present complex characteristics such as high pressure, high corrosion, and strong vibration. Therefore, the compressive strength of pressure regulating valves is directly related to the safety and stability of the entire fluid transportation and control system. If a pressure regulating valve's compressive strength is insufficient, it may rupture or leak under high-pressure conditions. This can not only disrupt production but also cause serious safety incidents such as fires, explosions, and poisoning, resulting in significant economic losses and casualties. Traditional methods for testing the compressive strength of pressure regulating valves often rely on manual pressure-applying devices and simple pressure sensors. These methods suffer from low accuracy, cumbersome operation, and inefficient testing. Furthermore, these devices struggle to simulate the pressure fluctuations experienced by pressure regulating valves under complex operating conditions, making it impossible to fully and accurately assess the pressure resistance of the valves. With the continuous advancement of industrial automation and intelligentization, higher requirements are being placed on the accuracy, automation, and efficiency of pressure regulating valve compressive strength testing equipment. Therefore, developing a pressure regulating valve compressive strength testing device that can achieve high precision, automation, and simulate complex working conditions has become an urgent need to ensure industrial production safety and improve production efficiency. In view of this, we propose a pressure regulating valve compressive strength testing device. Summary of the Invention

[0003] The object of the present invention is to provide a compressive strength testing device for a pressure regulating valve to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A compressive strength testing device for a pressure regulating valve, comprising a pressure generating mechanism, a pressure control and regulating mechanism, a testing platform, a pressure sensor group, and a data acquisition and processing system;

[0006] The pressure generating mechanism is used to apply pressure to the pressure regulating valve to be tested, and the pressure control and regulation mechanism is used to control the stamping pressure, frequency and stroke of the pressure generating mechanism;

[0007] A detection cavity is set on the top of the detection table, and pressure sensor groups are set at different positions in the detection cavity to fully monitor the pressure distribution in the detection cavity;

[0008] The data acquisition and processing system includes a data acquisition card, an industrial computer and a display module. The data acquisition card is used to collect data from the pressure sensor group, the industrial computer is used to analyze and process the collected data, and the display module is used to display the pressure data and test results during the test process.

[0009] A clamping mechanism is provided in the detection cavity, which includes two relatively arranged moving blocks, which slide with the detection table, and fixed frames are provided on both sides of the moving blocks. A positioning body is provided on the inner side of the fixed frame, and the positioning body is rotatably connected to the fixed frame. An installation cavity is provided on the fixed frame, and an adjustment positioning component is provided in the installation cavity. The adjustment positioning component is used to adjust the angle of the positioning body.

[0010] Preferably, the adjustment and positioning assembly includes a rack structure and an adjustment rod, the rack structure includes a first rack and a second rack, the first rack and the second rack form a step-shaped structure, the second rack is located on the top surface of the first rack, and a second gear is provided at the lower end of the adjustment rod, and the second gear is engaged with the second rack;

[0011] Connecting shafts are provided at both ends of the positioning body, the connecting shafts are rotatably connected to the fixing frame, a first gear is sleeved on the connecting shaft at the upper end, and the first gear is meshed with the first rack.

[0012] Preferably, the adjusting rod is rotatably connected to the fixing frame, the upper end of the adjusting rod is connected to an adjusting handwheel, the adjusting rod is provided with a limiting cylinder at the lower end of the adjusting handwheel, and the limiting cylinder is threadedly connected to the adjusting rod;

[0013] A threaded portion is provided on the outer wall of the lower end of the limiting cylinder, and a threaded hole is provided on the top surface of the fixing frame. The threaded portion can be threadedly connected with the threaded hole.

[0014] Preferably, the fixing frame includes two fixing plates arranged opposite to each other, the connecting shaft is rotatably connected to the fixing plates, the threaded hole is located on the upper fixing plate, and the upper end of the adjusting rod extends above the upper fixing plate.

[0015] Preferably, a slide groove is provided on the testing platform, the moving block is slidably matched with the slide groove, and a driving assembly is provided at the bottom of the testing platform, and the driving assembly is connected to the moving block.

[0016] Preferably, the driving assembly includes a motor and a threaded rod, the threaded rod is provided with two threaded parts with opposite thread directions, mounting plates are provided on both sides of the bottom surface of the detection table, the threaded rod is rotatably connected to the mounting plates, and the threaded rod is threadedly matched with the moving block.

[0017] Preferably, the pressure generating mechanism includes a hydraulic pump station, a hydraulic cylinder, a hydraulic pipeline and a punching head. The hydraulic pump station is connected to the hydraulic cylinder through a hydraulic pipeline to provide hydraulic power for the hydraulic cylinder; the piston rod of the hydraulic cylinder is fixedly connected to the punching head, and the piston rod is hydraulically driven to drive the punching head to perform reciprocating linear punching motion.

[0018] Preferably, the pressure sensor group includes multiple high-precision pressure sensors with different ranges, some of which are integrated in the contact end between the punching head and the pressure regulating valve for directly measuring the punching pressure, and the remaining pressure sensors are distributed in the pressure-bearing area of ​​the detection chamber and around the pressure regulating valve for monitoring pressure transmission and distribution.

[0019] Preferably, it also includes a simulated working condition auxiliary mechanism, which includes a vibration generating device and a temperature regulating device. The vibration generating device is arranged under the test platform to simulate the vibration environment in actual working conditions; the temperature regulating device is arranged in the test cavity to simulate the temperature changes in actual working conditions, so as to achieve a more realistic pressure regulating valve compressive strength testing environment.

[0020] Preferably, the positioning body includes an arc portion and a mounting portion, wherein arc edges in contact with the pressure regulating valve are provided at both ends of the arc portion, a groove is provided in the middle of the arc portion, a connecting block is provided on the mounting portion, the connecting block is slidably engaged with the groove, a plurality of springs are provided in the groove, and the springs are connected to the connecting block;

[0021] Two auxiliary limit blocks are also provided on the outside of the arc portion, and a limit slot is provided on the mounting portion, and the auxiliary limit blocks are slidably matched with the limit slot.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The pressure generating mechanism of the present invention provides a stable pressure output through components such as a hydraulic pump station and a hydraulic cylinder. The PLC controller in the pressure control and regulation mechanism is combined with a pressure feedback unit to accurately adjust the stamping pressure, frequency and stroke. The pressure sensor group is distributed in different positions of the detection chamber, covering the contact end of the stamping head and the surrounding area of ​​the pressure regulating valve. It can fully monitor the pressure distribution, ensure the accuracy and reliability of the detection data, and provide an accurate basis for the pressure regulating valve compressive strength assessment. The adjustment rod cooperates with the rack structure and the gear to achieve precise adjustment of the positioning body angle, so that the arc edges on both sides of the positioning body can stably contact the pressure regulating valve, improve the stability of the pressure regulating valve fixation, and facilitate accurate detection of the pressure regulating valve's anti-stamping ability; and the setting of the adjustment handwheel and the limit cylinder makes the adjustment operation convenient and quick. After the adjustment is completed, it can effectively prevent the adjustment rod from rotating and ensure the stability of the positioning body angle. The angle of each positioning body can be adjusted separately. When the pressure regulating valve has an irregular structure, it can improve the ability to fit the irregular shape, ensure the clamping stability and force uniformity during the detection process, and make the device more applicable.

[0024] (2) The arc portion and the mounting portion of the positioning body of the present invention are formed into a telescopic structure through a spring, a connecting block and a groove, which can be adaptively adjusted according to the outer contour of the pressure regulating valve when clamping the pressure regulating valve. The elastic force of the spring can buffer the clamping force and avoid damage such as indentations and scratches on the surface of the pressure regulating valve. It is particularly suitable for pressure regulating valves with high surface accuracy requirements or soft materials, effectively protecting the tested product and reducing losses during the detection process. The cooperation between the auxiliary limit block and the limit groove provides guidance and constraints for the relative sliding of the arc portion and the mounting portion, preventing the components from shifting or shaking during the telescopic process. Even if the equipment is subjected to vibration or pressure fluctuations during the detection process, the limit structure can ensure that the positioning body always maintains a stable clamping state, avoiding the pressure regulating valve from loosening and affecting the accuracy of the detection results.

[0025] (3) The vibration generator and temperature control device of the auxiliary mechanism for simulating working conditions of the present invention can simulate the vibration and temperature change environment in actual working conditions. The vibration generator can adjust the vibration frequency and amplitude, and the temperature control device can accurately control the temperature in the test chamber, creating an environment closer to the actual use scenario for the pressure regulating valve compressive strength test, making the test results more valuable and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the top surface structure of the detection platform of the present invention;

[0028] Figure 3 This is a schematic diagram of the bottom structure of the detection platform of the present invention;

[0029] Figure 4 It is a partial cross-sectional schematic diagram of the clamping mechanism of the present invention;

[0030] Figure 5 This is a schematic diagram of the rack structure connection of the present invention;

[0031] Figure 6 It is a schematic diagram of the positioning body structure of the present invention;

[0032] Figure 7 Schematic diagram of the adjusting rod and threaded hole of the present invention.

[0033] Explanation of the numbers in the figure: 1. Testing platform; 101. Testing chamber; 102. Slide; 2. Pressure generating mechanism; 3. Clamping mechanism; 301. Moving block; 302. Fixed frame; 303. Positioning body; 304. Rack structure; 305. Adjusting rod; 306. Connecting shaft; 307. First gear; 308. Second gear; 309. Limiting cylinder; 310. Threaded hole; 311. Groove; 312. Connecting block; 313. Spring; 314. Auxiliary limiting block; 315. Limiting groove; 4. Threaded rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Example:

[0036] See also Figure 1-7 , a compressive strength testing device for a pressure regulating valve, comprising a pressure generating mechanism 2, a pressure control and regulating mechanism, a testing platform 1, a pressure sensor group, and a data acquisition and processing system;

[0037] The pressure-generating mechanism 2 applies pressure to the pressure-regulating valve under test, while the pressure-control and regulation mechanism controls the pressure, frequency, and stroke of the pressure-generating mechanism 2. The pressure-generating mechanism provides stable pressure output through components such as a hydraulic pump station and a hydraulic cylinder. The PLC controller in the pressure-control and regulation mechanism, combined with a pressure feedback unit, precisely adjusts the pressure, frequency, and stroke. Pressure sensors are located at various locations within the test chamber, covering the contact area of ​​the punch head and the area surrounding the pressure-regulating valve. These sensors comprehensively monitor pressure distribution, ensuring the accuracy and reliability of test data and providing a precise basis for evaluating the compressive strength of the pressure-regulating valve.

[0038] A detection chamber 101 is provided on the top of the detection platform 1. The pressure regulating valve to be detected is fixed in the detection chamber 101. The pressure sensor group is set at different positions in the detection chamber 101 to fully monitor the pressure distribution in the detection chamber 101.

[0039] The data acquisition and processing system includes a data acquisition card, an industrial computer and a display module. The data acquisition card is used to collect data from the pressure sensor group, the industrial computer is used to analyze and process the collected data, and the display module is used to display the pressure data and test results during the test process.

[0040] A clamping mechanism 3 is provided in the detection chamber 101, and the clamping mechanism 3 includes two moving blocks 301 arranged relatively to each other. The moving blocks 301 slide in cooperation with the detection platform 1, and fixed frames 302 are provided on both sides of the moving blocks 301. A positioning body 303 is provided on the inner side of the fixed frame 302, and the positioning body 303 is rotatably connected to the fixed frame 302. An installation cavity is provided on the fixed frame 302, and an adjustment positioning component is provided in the installation cavity. The adjustment positioning component is used to adjust the angle of the positioning body 303 so that the arc edges on both sides of the positioning body 303 can contact the pressure regulating valve, thereby improving the stability of the pressure regulating valve fixation and facilitating accurate detection of the pressure regulating valve's anti-punch ability. An angle scale is set on the top surface of the positioning body 303 to facilitate the rotation of the four positioning bodies 303 to the same angle. The number of positioning components is adjusted to correspond to the number of positioning bodies 303, and the angle of each positioning body 303 can also be adjusted individually. When the pressure regulating valve has an irregular structure, the ability to fit the irregular shape can be improved, ensuring the clamping stability and force uniformity during the detection process, making the device more applicable.

[0041] In the present application, the adjustment and positioning assembly includes a rack structure 304 and an adjustment rod 305. A linear groove matching the rack structure 304 is opened in the fixed frame 302 so that the rack structure 304 and the fixed frame 302 can slide together. The rack structure 304 includes a first rack and a second rack. The first rack and the second rack form a step-like structure. The second rack is located on the top surface of the first rack. A second gear 308 is provided at the lower end of the adjustment rod 305. The second gear 308 is engaged with the second rack. When the second gear 308 rotates, it pushes the first rack to move linearly; connecting shafts 306 are provided at both ends of the positioning body 303. The connecting shaft 306 is rotatably connected to the fixed frame 302. A first gear 307 is sleeved on the connecting shaft 306 at the upper end. The first gear 307 is engaged with the first rack. When the first gear 307 moves linearly, it can drive the first gear 307 to rotate. By rotating the adjustment rod 305, the second gear 308 rotates, which in turn drives the rack structure 304 to move linearly. The movement of the rack structure 304 drives the first gear 307 to rotate. Under the action of the first gear 307, the positioning body 303 rotates about the central axis of the connecting shaft 306, thereby adjusting the angle of the positioning body 303. Furthermore, by cooperating between the second gear 308 and the second rack, and the first gear 307 and the first rack, and by having a smaller diameter than the first gear 307, the positioning body's angle can be precisely adjusted, allowing the positioning body to be adjusted to a suitable angle and fit closely with the pressure regulating valve. This greatly enhances the device's adaptability to different models of pressure regulating valves, improving the device's versatility and practicality.

[0042] In the present application, the adjusting rod 305 is rotatably connected to the fixing frame 302. The upper end of the adjusting rod 305 is connected to an adjusting handwheel. The adjusting rod 305 is provided with a limiting cylinder 309 at the lower end of the adjusting handwheel. The limiting cylinder 309 is threadedly connected to the adjusting rod 305. The outer wall of the lower end of the limiting cylinder 309 is provided with a threaded portion. The top surface of the fixing frame 302 is provided with a threaded hole 310. The threaded portion can be threadedly connected to the threaded hole 310. When the limiting cylinder 309 is not in contact with the threaded hole 310, the adjusting rod 305 can be rotated. When the adjusting rod 305 does not need to be rotated, the limiting cylinder 309 is rotated to move it downward. The threaded portion at the lower end of the limiting cylinder 309 will extend into the threaded hole 310. Then, the threaded portion and the threaded hole 310 are threadedly connected, thereby locking and fixing the adjusting rod 305 and preventing the adjusting rod 305 from rotating.

[0043] In the present application, the fixing frame 302 includes two opposing fixing plates, with a connecting shaft 306 rotatably connected to the fixing plates. A threaded hole 310 is located on the upper fixing plate. The upper end of the adjustment rod 305 extends through the middle of the threaded hole 310 to above the upper fixing plate, with a gap between the adjustment rod 305 and the threaded hole 310. The lower end of the adjustment rod 305, the second gear 308, the rack structure 304, and the first gear 307 are all mounted within the upper fixing plate.

[0044] In this application, a slide groove 102 is provided on the detection platform 1, and the moving block 301 slides with the slide groove 102. The slide groove 102 limits the moving trajectory of the moving block 301. A driving component is provided at the bottom of the detection platform 1, and the driving component is connected to the moving block 301. The driving component is used to push the two moving blocks 301 to slide relative to each other along the slide groove 102, thereby clamping the pressure regulating valve.

[0045] In this application, the drive assembly includes a motor and a threaded rod 4. The threaded rod 4 is provided with two threaded sections with opposite thread directions. Mounting plates are provided on both sides of the bottom surface of the test platform 1. The threaded rod 4 is rotatably connected to the mounting plates. The threaded rod 4 is threadedly engaged with the moving block 301. The motor drives the threaded rod 4 to rotate, causing the moving block 301, which is threadedly connected to the threaded rod 4, to move linearly along the threaded rod.

[0046] In a possible embodiment, a cylinder may be provided outside the moving block 301 to push the moving block 301 to move. The two cylinders need to be connected through a control system and started and shut down at the same time.

[0047] In this application, the pressure generating mechanism 2 includes a hydraulic pump station, a hydraulic cylinder, a hydraulic pipeline and a punching head. The hydraulic pump station is connected to the hydraulic cylinder through a hydraulic pipeline to provide hydraulic power for the hydraulic cylinder; the piston rod of the hydraulic cylinder is fixedly connected to the punching head, and the piston rod is hydraulically driven to drive the punching head to perform reciprocating linear punching motion, thereby applying pressure to the pressure regulating valve.

[0048] In this application, the pressure sensor group includes multiple high-precision pressure sensors with different ranges, some of which are integrated in the contact end between the punch head and the pressure regulating valve for directly measuring the punching pressure, and the remaining pressure sensors are distributed in the pressure-bearing area of ​​the detection cavity 101 and around the pressure regulating valve for monitoring pressure transmission and distribution.

[0049] In this application, the pressure control and regulation mechanism includes a proportional relief valve, a flow control valve, a PLC controller and a pressure feedback unit. The PLC controller controls the output pressure of the hydraulic pump station by adjusting the proportional relief valve according to the preset stamping parameters and the data of the pressure feedback unit, and controls the hydraulic oil flow by adjusting the flow control valve, thereby controlling the stamping pressure, frequency and stroke of the stamping head.

[0050] In one possible embodiment, the system further includes an auxiliary mechanism for simulating operating conditions. The auxiliary mechanism includes a vibration generator and a temperature regulator. The vibration generator is located below the test platform 1 and is used to simulate the vibration environment encountered during actual operating conditions. The temperature regulator is located within the test cavity 101 and is used to simulate temperature changes encountered during actual operating conditions, thereby achieving a more realistic pressure regulating valve compressive strength testing environment. The vibration generator includes an electromagnetic vibrator and a vibration frequency regulator. The electromagnetic vibrator is fixedly connected to the bottom of the test platform 1. The vibration frequency regulator is used to adjust the vibration frequency and amplitude of the electromagnetic vibrator to simulate vibration states under different operating conditions. The temperature regulator includes a heating wire, a cooling plate, and a thermostat. The heating wire and cooling plate are distributed on the wall of the test platform 1 cavity. The thermostat controls the operating state of the heating wire and cooling plate according to preset temperature parameters to achieve precise and stable temperature regulation within the test platform 1 cavity. The vibration generator and temperature regulator of the auxiliary mechanism for simulating operating conditions can simulate the vibration and temperature changes encountered during actual operating conditions. The vibration generating device can adjust the vibration frequency and amplitude, and the temperature regulating device can accurately control the temperature in the test chamber, creating an environment closer to the actual use scenario for the pressure regulating valve compressive strength test, making the test results more valuable and practical.

[0051] like Figure 6As shown, in the present application, the positioning body 303 includes an arc portion and a mounting portion. The arc portion is provided with arc-shaped edges at both ends that contact the pressure regulating valve. The arc-shaped edges at both ends of the arc portion are surfaces that contact the pressure regulating valve. A groove 311 is provided in the middle of the arc portion. A connecting block 312 is provided on the mounting portion. The connecting block 312 slides in cooperation with the groove 311. A plurality of springs 313 are provided in the groove 311, and the springs 313 are connected to the connecting block 312. The arrangement of the springs 313, the connecting block 312, and the groove 311 enables the arc portion and the mounting portion to be retractable. Under the elastic force of the springs 313, the positioning body 303 is prevented from excessively clamping the surface of the pressure regulating valve, and the positioning body 303 can also be in close contact with the pressure regulating valve. The elastic force of the springs 313 causes the arc-shaped edges of the positioning body 303 to fit tightly against the pressure regulating valve, eliminating the gap between them and ensuring that pressure is evenly transmitted to the surface of the pressure regulating valve. This close contact can avoid detection errors caused by local uneven force, allowing the data collected by the pressure sensor to more truly reflect the pressure resistance of the pressure regulating valve, thereby improving the overall detection accuracy.

[0052] Two auxiliary limit blocks 314 are also provided on the outside of the arc part, and a limit groove 315 is provided on the mounting part. The auxiliary limit blocks 314 slide in cooperation with the limit groove 315. Through the cooperation between the auxiliary limit blocks 314 and the limit groove 315, the relative movement between the arc part and the mounting part is smoother.

[0053] In this invention, the clamping mechanism and positioning body are designed using modular components. Components such as springs, connecting blocks, and auxiliary stoppers are easily disassembled and replaced. If wear or damage occurs after long-term use, local repairs can be quickly performed without replacing the entire clamping mechanism. This reduces equipment maintenance costs and downtime, and improves equipment efficiency and cost-effectiveness.

[0054] In one possible embodiment, each of the four adjustment rods 305 is equipped with a micro servo motor, and each servo motor is connected to the corresponding adjustment rod 305 via a coupling. A central controller is provided, which is connected to the four servo motors via a data cable for sending control instructions. At the same time, control buttons are provided on the device operation panel to facilitate the operator to perform operations such as starting, stopping, and speed adjustment. After the operator enters the rotation instruction and angle parameters on the operation panel, the central controller converts the instruction into an electrical signal and sends it to the four servo motors at the same time. After receiving the signal, the servo motor rotates synchronously according to the preset parameters, driving the adjustment rod 305 to rotate through the coupling, achieving synchronous angle adjustment of the four positioning bodies 303 to accommodate the use of pressure regulating valves of different sizes. The servo motor has high-precision speed and angle control capabilities, can accurately control the rotation of the adjustment rod 305, and can monitor and adjust the motor in real time through the central controller to ensure the rotation consistency of the four adjustment rods 305.

[0055] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A compressive strength testing device for a pressure regulating valve, characterized in that: It includes a pressure generating mechanism (2), a pressure control and regulating mechanism, a test bench (1), a pressure sensor group, and a data acquisition and processing system; The pressure generating mechanism (2) is used to apply pressure to the pressure regulating valve to be tested, and the pressure control and regulation mechanism is used to control the stamping pressure, frequency and stroke of the pressure generating mechanism (2); A detection cavity (101) is provided on the top of the detection platform (1), and the pressure sensor group is provided at different positions in the detection cavity (101) for comprehensively monitoring the pressure distribution in the detection cavity (101); The data acquisition and processing system includes a data acquisition card, an industrial computer and a display module. The data acquisition card is used to collect data from the pressure sensor group, the industrial computer is used to analyze and process the collected data, and the display module is used to display the pressure data and test results during the detection process. A clamping mechanism (3) is provided in the detection cavity (101), and the clamping mechanism (3) includes two moving blocks (301) arranged opposite to each other, the moving blocks (301) and the detection table (1) being slidably matched, a fixing frame (302) is provided on both sides of the moving block (301), a positioning body (303) is provided inside the fixing frame (302), the positioning body (303) is rotatably connected to the fixing frame (302), an installation cavity is provided on the fixing frame (302), an adjustment positioning component is provided in the installation cavity, and the adjustment positioning component is used to adjust the angle of the positioning body (303); The positioning body (303) comprises an arc portion and a mounting portion, and arc-shaped edges in contact with the pressure regulating valve are provided at both ends of the arc portion; The adjustment and positioning assembly includes a rack structure (304) and an adjustment rod (305), the rack structure (304) includes a first rack and a second rack, the first rack and the second rack form a step-shaped structure, the second rack is located on the top surface of the first rack, and a second gear (308) is provided at the lower end of the adjustment rod (305), and the second gear (308) is engaged with the second rack; Connecting shafts (306) are provided at both ends of the positioning body (303), and the connecting shafts (306) are rotatably connected to the fixing frame (302). A first gear (307) is sleeved on the connecting shaft (306) at the upper end, and the first gear (307) is meshed with the first rack. The adjusting rod (305) is rotatably connected to the fixing frame (302); the upper end of the adjusting rod (305) is connected to an adjusting handwheel; a limiting cylinder (309) is provided at the lower end of the adjusting rod (305) and the limiting cylinder (309) is threadedly connected to the adjusting rod (305); The outer wall of the lower end of the limiting cylinder (309) is provided with a threaded portion, and the top surface of the fixing frame (302) is provided with a threaded hole (310), and the threaded portion can be threadedly connected to the threaded hole (310); The fixing frame (302) includes two fixing plates arranged opposite to each other, the connecting shaft (306) is rotatably connected to the fixing plates, the threaded hole (310) is located on the upper fixing plate, and the upper end of the adjusting rod (305) extends above the upper fixing plate; A groove (311) is provided in the middle of the arc portion, a connecting block (312) is provided on the mounting portion, the connecting block (312) is slidably engaged with the groove (311), a plurality of springs (313) are provided in the groove (311), and the springs (313) are connected to the connecting block (312); Two auxiliary limiting blocks (314) are further provided on the outer side of the arc portion, and a limiting groove (315) is provided on the mounting portion, wherein the auxiliary limiting blocks (314) are slidably engaged with the limiting groove (315).

2. The compressive strength testing device for a pressure regulating valve according to claim 1, characterized in that: A slide groove (102) is provided on the detection platform (1), and the moving block (301) is slidably matched with the slide groove (102). A driving component is provided at the bottom of the detection platform (1), and the driving component is connected to the moving block (301).

3. The compressive strength testing device for a pressure regulating valve according to claim 2, characterized in that: The driving assembly comprises a motor and a threaded rod (4), the threaded rod (4) being provided with two threaded sections with opposite thread directions, a mounting plate being provided on both sides of the bottom surface of the detection platform (1), the threaded rod (4) being rotatably connected to the mounting plate, and the threaded rod (4) being threadably engaged with the moving block (301).

4. The compressive strength testing device for a pressure regulating valve according to claim 1, characterized in that: The pressure generating mechanism (2) comprises a hydraulic pump station, a hydraulic cylinder, a hydraulic pipeline and a punching head. The hydraulic pump station is connected to the hydraulic cylinder via a hydraulic pipeline to provide hydraulic power to the hydraulic cylinder. The piston rod of the hydraulic cylinder is fixedly connected to the punching head, and the piston rod is driven by the hydraulic pressure to drive the punching head to perform reciprocating linear punching motion.

5. The compressive strength testing device for a pressure regulating valve according to claim 4, characterized in that: The pressure sensor group includes a plurality of high-precision pressure sensors with different ranges, some of which are integrated at the contact end between the punch head and the pressure regulating valve for directly measuring the punching pressure, and the remaining pressure sensors are distributed in the pressure-bearing area of ​​the detection cavity (101) and around the pressure regulating valve for monitoring pressure transmission and distribution.

6. The compressive strength testing device for a pressure regulating valve according to claim 5, characterized in that: The device also includes a simulated working condition auxiliary mechanism, which includes a vibration generating device and a temperature regulating device. The vibration generating device is arranged below the test platform (1) and is used to simulate the vibration environment in actual working conditions; the temperature regulating device is arranged in the test cavity (101) and is used to simulate the temperature change in actual working conditions, so as to achieve a more realistic pressure regulating valve compressive strength testing environment.

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