A device for detecting pressure in a hydraulic pipe

Abstract

The invention relates to the technical field of pressure detection devices, and discloses a pressure detection device in a hydraulic pipe, comprising a device body, a detection box fixedly connected in the device body, three detection slots on the surface of the detection box, two fixed rods fixedly connected to the surface of the detection box, a rotating rod fixedly connected to each fixed rod, a cover plate rotatably connected to the outer wall of each rotating rod, a slide rail fixedly connected to one side of the two cover plates, a moving rail fixedly connected to the bottom surface of the detection slot located in the middle, moving blocks slidably connected to the two slide rails and the moving rails, and a temperature control component connected in the detection box; the temperature control device is used to set the three detection slots to three different environments of high temperature, normal temperature and low temperature respectively, so as to simulate various temperature conditions that the hydraulic pipe may encounter in actual applications, thereby improving the comprehensiveness and accuracy of the detection, and providing a strong guarantee for the quality control and safe use of the hydraulic pipe.

Description

Technical Field

[0001] The invention relates to the technical field of pressure detection devices, in particular to a pressure detection device in a hydraulic pipe. Background Art

[0002] With the rapid development of new material technology, the hydraulic pipe industry is gradually introducing new materials with high strength, high corrosion resistance and light weight, such as polymer composites, nano-enhanced polymers and metal-based composites, to improve the performance of hydraulic pipes. In the production process of hydraulic pipes, it is necessary to test the pressure bearing capacity of hydraulic pipes made of new materials to ensure that the quality of the hydraulic pipes meets the specifications and prevent hydraulic pipes from bursting during subsequent use. The existing pressure detection method uses a hose pressure test bench. By installing the hose in the test bench and injecting high-pressure liquid into the hydraulic pipe, the pressure bearing capacity of the hydraulic pipe is determined to achieve pressure detection of the hydraulic pipe.

[0003] For example, in the prior art, the utility model patent with authorization announcement number CN211401968U discloses a high-pressure resistance detection device for hydraulic pipes, which belongs to the technical field of hydraulic pipe detection. The device includes a frame, a test box arranged on the frame, a box cover slidably connected to the top of the test box, a water supply assembly, a booster and a pressure relief assembly; a water inlet installation position and a water outlet installation position are provided in the test box, and the two ends of the hydraulic pipe are respectively fixed at the water inlet installation position and the water outlet installation position, and the water source in the clear water area of ​​the water supply assembly is transported into the hydraulic pipe, and the two-way booster pump is continuously started to continuously transport high-pressure water into the hydraulic pipe. After the pressure increases to the set value, the pressure relief assembly is started to discharge the high-pressure water in the hydraulic pipe, and the normal-pressure water is transported to the sewage area of ​​the water supply assembly, so as to complete the pressure resistance test of the hydraulic pipe before leaving the factory and ensure the factory qualified rate of the hydraulic pipe.

[0004] Although the pressure detection device in the above patent can perform high-pressure resistance test on the hydraulic pipe before it leaves the factory to ensure the factory qualified rate of the hydraulic pipe, the existing pressure detection device has certain defects when used; when the existing pressure detection device detects the hydraulic pipe, it only detects the pressure performance of the hydraulic pipe at room temperature. However, the hydraulic pipe is often faced with various complex environmental conditions in actual application, especially the temperature change has a significant impact on its pressure bearing capacity. In high or low temperature environment, the material properties of the hydraulic pipe may change, resulting in a decrease in its pressure bearing capacity, thereby increasing the risk of bursting. Therefore, the existing pressure detection device cannot perform comprehensive pressure detection on the hydraulic pipe. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a device for detecting pressure in a hydraulic pipe to solve the problems raised by the background art and to perform pressure detection on the hydraulic pipe at various temperatures.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for detecting pressure in a hydraulic pipe, comprising a device body, a detection box fixedly connected to the device body, three detection slots arranged at equal intervals are provided on the surface of the detection box, a liquid filling head is fixedly connected to one side of each detection slot, the liquid filling head is connected to the inside of the device body, two fixed rods are fixedly connected to the surface of the detection box, a rotating rod is fixedly connected to each fixed rod, a cover plate is rotatably connected to the outer wall of each rotating rod, the two cover plates respectively correspond to the positions of two detection slots located on both sides of the detection box, the two cover plates are fixedly connected to a slide rail on one side facing the outside of the device body, a moving rail is fixedly connected to the bottom surface of the detection slot located in the middle, the two slide rails are slidably connected to the moving rail with a moving block, a sealing head is fixedly connected to each moving block, the sealing head corresponds to the position of the filling head one by one, a drainage hole is provided on the bottom surface of the detection slot located in the middle, a temperature control component is connected to the detection box, and the temperature control component comprises The vent pipe is provided with a swirl pipe, and the vent pipe is provided with a swirl pipe which is connected to the vent pipe at the bottom of the vent pipe.

[0007] Furthermore, the heat exchange component includes a connecting block, a heat exchange tube, a connecting pipe and a return pipe. The hot air pipe and the cold air pipe are fixedly connected to a connecting block at one end away from the fixed column. The two connecting blocks are respectively fixedly connected to the inner walls of the detection grooves on both sides. The other sides of the inner walls of the detection grooves on both sides are fixedly connected to connecting blocks. A plurality of heat exchange tubes are fixedly connected between the two connecting blocks located in the same detection groove. The heat exchange tubes are fitted with the inner walls of the detection groove. A connecting pipe is fixedly connected between the two connecting blocks away from the fixed column, and a return pipe is fixedly connected to the middle of the connecting pipe.

[0008] Furthermore, the return pipe is fixedly connected to the air compressor.

[0009] Furthermore, the bottom surfaces of the two detection grooves on both sides are provided with drainage grooves, a silicone block is slidably connected in the drainage groove, a movable plate is fixedly connected to the top surface of the silicone block, and a movable groove is provided on the upper part of the movable plate.

[0010] Furthermore, the bottom surface of the silicone block is a curved surface.

[0011] Furthermore, one side edge of the two cover plates connected to the slide rail is fixedly connected to a magnetic strip.

[0012] Furthermore, a spring is fixedly connected to one side of the two moving blocks connected to the slide rail away from the sealing head, and the other end of the spring is fixedly connected to one end of the slide rail away from the liquid filling head.

[0013] Furthermore, a protective shell matching the position of the installation slot is fixedly connected to the surface of the detection box, and the temperature control component is located inside the protective shell.

[0014] Furthermore, two detection slots located on both sides are fixedly connected with a sealing shell, and the heat exchange component is located in the sealing shell.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) This hydraulic pipe internal pressure detection device uses a temperature control device to set the three detection tanks to three different environments: high temperature, normal temperature and low temperature, so as to simulate various temperature conditions that the hydraulic pipe may encounter in actual application, thereby improving the comprehensiveness and accuracy of the detection and providing a strong guarantee for the quality control and safe use of the hydraulic pipe;

[0017] (2) The design of the heat exchange tube enables the heat or cold in the airflow to be quickly and evenly transferred to the inside of the test tank, improving the heat conduction efficiency. This efficient heat exchange mechanism enables the test tank to quickly reach the required temperature conditions, whether it is heating up or cooling down;

[0018] (3) The airflow whose temperature changes after passing through the heat exchange tube can re-enter the air compressor through the return pipe for recirculation, thereby improving energy utilization efficiency, recovering and reusing heat or cold, stabilizing the output airflow temperature of the air compressor, reducing the impact of airflow temperature changes on the stability of the detection system, and reducing energy consumption and costs;

[0019] (4) Utilize the softness of the silicone block and its contact with the bottom of the test slot to push any water that may remain inside the test slot into the drain slot, further ensuring that the test slot is dry. After cleaning, insert the silicone block into the drain slot to achieve sealing, thereby preventing unnecessary heat exchange during subsequent testing and maintaining the stability of the testing environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the detection box, cover plate and protective shell of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the cover plate, the slide rail, the moving block and the spring of the present invention;

[0023] Figure 4 It is a schematic diagram of the three-dimensional disassembled structure of the detection box, the protective shell and the temperature control component of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the temperature control component of the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the temperature control component of the present invention;

[0026] Figure 7 It is a schematic diagram of a three-dimensional split cross-sectional structure of the temperature control component of the present invention;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing column of the present invention;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional disassembled structure of the detection box, the sealing shell and the heat exchange component of the present invention;

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the heat exchange component of the present invention;

[0030] Fig.11 It is a schematic diagram of the three-dimensional disassembly structure of the detection box, the silica gel block and the movable plate of the present invention;

[0031] Fig.12 It is a schematic diagram of the three-dimensional structure of the silica gel block and the moving plate of the present invention;

[0032] Fig.13 for Fig.11 Schematic diagram of the enlarged three-dimensional structure at point A above.

[0033] In the figure: 1. device body; 2. detection box; 3. detection slot; 4. magnetic strip; 5. filling head; 6. fixed rod; 7. rotating rod; 8. cover plate; 9. slide rail; 10. moving block; 11. sealing head; 12. moving rail; 13. drainage hole; 14. mounting slot; 15. air compressor; 16. air outlet pipe; 17. connecting pipe; 18. air guide pipe; 19. exhaust pipe; 20. vortex chamber; 21. vortex slot; 22. fixing column; 23. guide slot; 24. air guide slot; 25. conical block; 26. hot air pipe; 27. cold air pipe; 28. connecting block; 29. ​​heat exchange pipe; 30. connecting pipe; 31. return pipe; 32. sealing shell; 33. protective shell; 34. drainage slot; 35. silicone block; 36. moving plate; 37. moving slot; 38. spring; 39. connecting rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely 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] See also Figures 1 to 13 A device for detecting pressure in a hydraulic pipe comprises a device body 1, a detection box 2 is fixedly connected inside the device body 1, three detection slots 3 arranged at equal intervals are opened on the surface of the detection box 2, a liquid filling head 5 is fixedly connected to one side of each detection slot 3, and the liquid filling head 5 is connected to the inside of the device body 1, two fixed rods 6 are fixedly connected to the surface of the detection box 2, a rotating rod 7 is fixedly connected to each fixed rod 6, and a cover plate 8 is rotatably connected to the outer wall of each rotating rod 7, and the two cover plates 8 correspond to the positions of the two detection slots 3 located on both sides of the detection box 2 respectively. 8 is fixedly connected with a slide rail 9 on one side facing the outside of the device body 1, a moving rail 12 is fixedly connected to the bottom surface of the detection slot 3 in the middle, and a moving block 10 is slidably connected to the two slide rails 9 and the moving rail 12, and a sealing head 11 is fixedly connected to each moving block 10, and the sealing head 11 corresponds to the position of the filling head 5 one by one, and a drainage hole 13 is opened on the bottom surface of the detection slot 3 in the middle, and a temperature control component is connected to the detection box 2, and the temperature control component includes an air compressor 15, an air outlet pipe 16, a connecting pipe 17, an air guide pipe 18, an exhaust pipe 19, and a fixed column 22. , a conical block 25, a hot air pipe 26 and a cold air pipe 27, a mounting groove 14 is provided on the surface of the detection box 2 away from the liquid filling head 5, an air compressor 15 is fixedly connected in the mounting groove 14, an air guide pipe 18 and an exhaust pipe 19 are fixedly connected at both ends of the connecting pipe 17, the other end of the air guide pipe 18 is fixedly connected to the hot air pipe 26, and the other end of the exhaust pipe 19 is fixedly connected to the cold air pipe 27, the air compressor 15 and the connecting pipe 17 are fixedly connected through the outlet pipe 16, a vortex chamber 20 is provided in the connecting pipe 17, and a fixed A fixed column 22 is provided with a plurality of guide grooves 23 on one side of the fixed column 22 close to the air guide pipe 18, a vortex groove 21 connected to the vortex chamber 20 and the hot air pipe 26 is provided in the air guide pipe 18, a conical block 25 is fixedly connected to the inner wall of the vortex groove 21 on the side away from the fixed column 22, the tip of the conical block 25 faces the fixed column 22, the conical block 25 and the vortex groove 21 are fixedly connected by a plurality of connecting rods 39, an air guide groove 24 connected to the exhaust pipe 19 is provided in the middle of the fixed column 22, and the other ends of the hot air pipe 26 and the cold air pipe 27 are connected to heat exchange components.

[0036] The device for detecting the pressure in a hydraulic pipe of the present invention, when it is necessary to detect the hydraulic pipe, three pipes to be tested are taken out, one end of each of the three pipes to be tested is fixedly connected to the filling head 5, and the other end is loosely connected to the sealing head 11, then the device body 1 is started to fill water into the pipe to be tested through the filling head 5 to discharge the gas in the pipe to be tested, then the pipe to be tested and the sealing head 11 are tightly connected, then the two cover plates 8 are closed, and the air compressor 15 is started. The air compressor 15 will generate a high-pressure airflow, and the airflow will enter the vortex chamber 20 through the air outlet pipe 16. Under the action of the guide groove 23 on the fixed column 22, the airflow enters the vortex groove 21 along the tangential direction, and a rotating vortex is formed in the vortex groove 21 that moves along the vortex groove 21. The rotational angular velocity of the vortex is the largest at the center of the vortex, and the closer to the center, the greater the angular velocity. Due to the different angular velocities, friction is generated between the layers of the vortex, and the angular velocity of the internal airflow in the center part is The degree is the largest, and the energy is transferred to the outer air flow with lower angular velocity in the outer layer during the friction process, causing the air flow in the central layer to lose energy, the kinetic energy is reduced, and the temperature is also reduced, thereby generating a low-temperature inner air flow and a high-temperature outer air flow. As the air flow continues to move along the vortex groove 21, it will be blocked by the conical block 25. At this time, the outer air flow will enter the hot air pipe 26 through the gap between the conical block 25 and the vortex groove 21, and then heat the inside of the outer detection groove 3 through the heat exchange component. Under the obstruction of the conical block 25, the inner air flow will move in the opposite direction along the vortex groove 21, and then enter the cold air pipe 27 through the air guide groove 24 and the exhaust pipe 19, and then cool the inner detection groove 3 through the heat exchange component. Through this setting, the three detection grooves 3 are transformed from three normal temperature environments to three environments of high temperature, normal temperature and low temperature. Then the device body 1 is started again, and a constant pressure liquid is filled into the tube to be tested to realize the pressure detection of the tube to be tested;

[0037] The hydraulic pipe internal pressure detection device of the present invention uses a temperature control device to set the three detection slots 3 to three different environments of high temperature, normal temperature and low temperature, respectively, so as to simulate various temperature conditions that the hydraulic pipe may encounter in actual applications, thereby improving the comprehensiveness and accuracy of the detection and providing a strong guarantee for the quality control and safe use of the hydraulic pipe.

[0038] As a preferred technical solution of the present invention, the heat exchange component includes a connecting block 28, a heat exchange tube 29, a connecting tube 30 and a return pipe 31. The hot air pipe 26 and the cold air pipe 27 are fixedly connected to the connecting block 28 at one end away from the fixed column 22. The two connecting blocks 28 are respectively fixedly connected to the inner walls of the detection grooves 3 on both sides. The other sides of the inner walls of the detection grooves 3 on both sides are fixedly connected to the connecting blocks 28. A plurality of heat exchange tubes 29 are fixedly connected between the two connecting blocks 28 located in the same detection groove 3. The heat exchange tubes 29 are in contact with the inner wall of the detection groove 3. A connecting tube 30 is fixedly connected between the two connecting blocks 28 away from the fixed column 22, and a return pipe 31 is fixedly connected to the middle of the connecting tube 30.

[0039] Specifically, the inner airflow and the outer airflow will enter the connecting block 28 through the pipe, and then enter the heat exchange tube 29. The design of the heat exchange tube 29 enables the heat or cold in the airflow to be quickly and evenly transferred to the inside of the detection tank 3, thereby improving the heat conduction efficiency. This efficient heat exchange mechanism enables the detection tank 3 to quickly reach the required temperature conditions, whether it is heating up or cooling down.

[0040] As a preferred technical solution of the present invention, the return pipe 31 is fixedly connected to the air compressor 15 .

[0041] Specifically, the airflow whose temperature changes after passing through the heat exchange tube 29 can re-enter the air compressor 15 through the return pipe 31 for recycling, thereby improving energy utilization efficiency, recovering and reusing heat or cold, stabilizing the output airflow temperature of the air compressor 15, reducing the impact of airflow temperature changes on the stability of the detection system, and reducing energy consumption and costs.

[0042] As a preferred technical solution of the present invention, the bottom surfaces of the two detection grooves 3 located on both sides are provided with drainage grooves 34, and a silicone block 35 is slidably connected in the drainage groove 34. A movable plate 36 is fixedly connected to the top surface of the silicone block 35, and a movable groove 37 is provided on the upper part of the movable plate 36.

[0043] Specifically, during the exhaust and pressure detection process, a portion of liquid will flow into the detection groove 3. After the detection is completed, the movable plate 36 can be held by inserting a finger into the movable groove 37, and then the movable plate 36 can be lifted to pull out the silicone block 35 to discharge the liquid from the drainage groove 34. At the same time, the movable plate 36 is inserted into the detection groove 3 to make the silicone block 35 contact with the bottom surface of the detection groove 3, and then the movable plate 36 is slid. The softness of the silicone block 35 and the contact with the bottom surface of the detection groove 3 can be used to push the accumulated water that may remain in the detection groove 3 into the drainage groove 34, thereby further ensuring the dryness of the detection groove 3. After cleaning, the silicone block 35 is inserted into the drainage groove 34 to achieve sealing, thereby preventing unnecessary heat exchange in subsequent detection processes and maintaining the stability of the detection environment.

[0044] As a preferred technical solution of the present invention, the bottom surface of the silicone block 35 is a curved surface.

[0045] Specifically, the curved surface design enables the silicone block 35 to better fit the curvature of the groove wall when inserted into the drainage groove 34, reducing gaps and leakage points, improving the sealing effect, preventing heat exchange and liquid leakage, and ensuring the stability of the internal environment of the detection groove 3; at the same time, the curved surface design makes the silicone block 35 smoother during installation and removal. The operator can more easily insert or remove the silicone block 35 from the drainage groove 34, reducing the difficulty and time cost of operation.

[0046] As a preferred technical solution of the present invention, the edges of one side of the two cover plates 8 connected to the slide rails 9 are both fixedly connected to the magnetic strips 4 .

[0047] Specifically, the provision of the magnetic strip 4 enables the two cover plates 8 to fit more closely together with the detection box 2 when closed, thereby enhancing the overall sealing of the detection device, which is particularly important for occasions where it is necessary to maintain a stable detection environment and prevent external interference or leakage; at the same time, traditional fixing methods may require the use of complex mechanical structures such as screws and buckles, while the magnetic strip 4 automatically absorbs through magnetic force, making the opening and closing of the cover plate 8 very simple and quick, with a low possibility of wear and failure, and the operator only needs to push or pull lightly to complete the operation, greatly improving work efficiency.

[0048] As a preferred technical solution of the present invention, the two moving blocks 10 connected to the slide rail 9 are fixedly connected with a spring 38 on one side away from the sealing head 11 , and the other end of the spring 38 is fixedly connected to the end of the slide rail 9 away from the filling head 5 .

[0049] Specifically, after closing the cover plate 8, the spring 38 will pull the moving block 10 to straighten the hydraulic pipe, thereby ensuring that the hydraulic pipe is in the best condition during the detection process and reducing pressure loss or measurement error caused by bending.

[0050] As a preferred technical solution of the present invention, a protective shell 33 matching the position of the installation slot 14 is fixedly connected to the surface of the detection box 2 , and the temperature control component is located in the protective shell 33 .

[0051] Specifically, the protective shell 33 can protect the temperature control component located in the installation groove 14, ensure its stability and safety during operation, and prevent liquid from entering and damaging the air compressor 15.

[0052] As a preferred technical solution of the present invention, the two detection slots 3 located on both sides are fixedly connected with a sealing shell 32 , and the heat exchange component is located in the sealing shell 32 .

[0053] Specifically, the sealed shell 32 provides a closed and stable working environment for the heat exchange component. Since the heat exchange component may be affected by factors such as liquid, gas or high temperature during operation, the sealed shell 32 can effectively isolate these external factors to prevent them from damaging the heat exchange component or affecting its normal operation; at the same time, the sealed shell 32 is made of high thermal conductivity materials, such as metal, so as to improve the heat transfer efficiency and achieve rapid temperature change of the detection slot 3.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic pipe pressure detection device, comprising a device body (1), characterized in that: A detection box (2) is fixedly connected inside the device body (1), and three detection slots (3) arranged at equal intervals are provided on the surface of the detection box (2). A liquid filling head (5) is fixedly connected to one side of each detection slot (3), and the liquid filling head (5) is communicated with the inside of the device body (1). Two fixed rods (6) are fixedly connected to the surface of the detection box (2), and each fixed rod (6) is fixedly connected to a rotating rod (7). The outer wall of each rotating rod (7) is rotatably connected to a cover plate (8), and the two cover plates (8) correspond to the positions of the two detection slots (3) located on both sides of the detection box (2), and the two cover plates (8) are fixedly connected to the sides facing the outside of the device body (1). A slide rail (9) is connected, a moving rail (12) is fixedly connected to the bottom surface of the detection groove (3) located in the middle, a moving block (10) is slidably connected to the two slide rails (9) and the moving rail (12), a sealing head (11) is fixedly connected to each moving block (10), and the sealing head (11) corresponds to the position of the liquid filling head (5) in a one-to-one manner, a drainage hole (13) is opened on the bottom surface of the detection groove (3) located in the middle, and a temperature control component is connected to the detection box (2), and the temperature control component includes an air compressor (15), an air outlet pipe (16), a connecting pipe (17), an air guide pipe (18), an exhaust pipe (19), a fixed column (22), a conical block (25), a hot air pipe (2 6) and a cold air pipe (27), a mounting groove (14) is provided on a side of the surface of the detection box (2) away from the liquid filling head (5), an air compressor (15) is fixedly connected in the mounting groove (14), an air guide pipe (18) and an exhaust pipe (19) are fixedly connected at both ends of the connecting pipe (17), the other end of the air guide pipe (18) is fixedly connected to a hot air pipe (26), the other end of the exhaust pipe (19) is fixedly connected to a cold air pipe (27), the air compressor (15) and the connecting pipe (17) are fixedly connected via an air outlet pipe (16), a vortex chamber (20) is provided in the connecting pipe (17), a fixing column (22) is fixedly connected in the vortex chamber (20), A plurality of guide grooves (23) are provided on a side of the fixed column (22) close to the air guide pipe (18); a vortex groove (21) connected to the vortex chamber (20) and the hot air pipe (26) is provided in the air guide pipe (18); a conical block (25) is fixedly connected to the inner wall of the vortex groove (21) on a side away from the fixed column (22); the tip of the conical block (25) faces the fixed column (22); the conical block (25) and the vortex groove (21) are fixedly connected via a plurality of connecting rods (39); an air guide groove (24) connected to the exhaust pipe (19) is provided in the middle of the fixed column (22); and the other ends of the hot air pipe (26) and the cold air pipe (27) are both connected to heat exchange components.

2. A hydraulic pipe pressure detection device according to claim 1, characterized in that: The heat exchange assembly comprises a connecting block (28), a heat exchange tube (29), a connecting tube (30) and a return tube (31); the ends of the hot air tube (26) and the cold air tube (27) away from the fixed column (22) are fixedly connected to the connecting block (28); the two connecting blocks (28) are respectively fixedly connected to the inner walls of the detection grooves (3) located on both sides; the other sides of the inner walls of the detection grooves (3) located on both sides are fixedly connected to the connecting blocks (28); a plurality of heat exchange tubes (29) are fixedly connected between the two connecting blocks (28) located in the same detection groove (3); the heat exchange tubes (29) are in contact with the inner walls of the detection groove (3); a connecting tube (30) is fixedly connected between the two connecting blocks (28) away from the fixed column (22); and a return tube (31) is fixedly connected to the middle of the connecting tube (30).

3. A hydraulic pipe pressure detection device according to claim 2, characterized in that: The return pipe (31) is fixedly connected to the air compressor (15).

4. A hydraulic pipe internal pressure detection device according to claim 1, characterized in that: The bottom surfaces of the two detection grooves (3) located on both sides are both provided with drainage grooves (34), a silicone block (35) is slidably connected in the drainage groove (34), a movable plate (36) is fixedly connected to the top surface of the silicone block (35), and a movable groove (37) is provided on the upper part of the movable plate (36).

5. A hydraulic pipe pressure detection device according to claim 4, characterized in that: The bottom surface of the silica gel block (35) is a curved surface.

6. A hydraulic pipe internal pressure detection device according to claim 1, characterized in that: The two cover plates (8) are connected to the slide rail (9) and one side edge thereof is fixedly connected to a magnetic attraction strip (4).

7. A hydraulic pipe internal pressure detection device according to claim 1, characterized in that: The two moving blocks (10) connected to the slide rail (9) are fixedly connected to a spring (38) on one side away from the sealing head (11), and the other end of the spring (38) is fixedly connected to an end of the slide rail (9) away from the liquid filling head (5).

8. A hydraulic pipe internal pressure detection device according to claim 1, characterized in that: A protective shell (33) matching the position of the installation slot (14) is fixedly connected to the surface of the detection box (2), and the temperature control component is located inside the protective shell (33).

9. A hydraulic pipe internal pressure detection device according to claim 1, characterized in that: The two detection slots (3) located on both sides are both fixedly connected with a sealing shell (32), and the heat exchange component is located in the sealing shell (32).

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