Thermal insulation pipe strength detection device

Abstract

The invention belongs to the technical field of thermal insulation pipe strength detection, and particularly relates to a thermal insulation pipe strength detection device which comprises a workbench, and an extrusion mechanism for extruding a thermal insulation pipe is arranged on the top surface of the workbench; a guide rail is fixedly connected to the top face of the workbench, a first sliding groove is formed in the top face of the guide rail, and a sliding block is slidably connected into the first sliding groove. The top face of the sliding block is fixedly connected with a first hydraulic rod. The motor drives the lead screw to rotate, so that the lead screw controls the sliding block to move, the motor can drive the lead screw to rotate forwards and reversely so as to control the sliding block to move left and right, and when the sliding block moves, the heat preservation sleeve on the limiting sleeve can be driven to move, so that the first pressing plate conducts strength detection on different positions of the heat preservation pipe; the detection efficiency is greatly improved, and after pressure is applied to all detection points, whether the quality of the thermal insulation pipe is qualified or not is judged by observing whether unrecoverable plastic deformation occurs on the thermal insulation pipe or not.

Description

Technical Field

[0001] This invention belongs to the field of thermal insulation pipe strength testing technology, specifically a thermal insulation pipe strength testing device. Background Technology

[0002] The insulated pipe consists of a steel pipe, polyurethane foam, and an HDPE outer protective pipe from the inside out. The polyurethane foam is the insulation layer, filling the gap between the steel pipe and the HDPE outer protective pipe to form a seamless insulation structure. Its function is to isolate the steel pipe from the heat exchange with the outside environment, reduce energy loss during transportation, and also play a certain role in moisture protection and buffering. It is a protective shell that covers the outside of the polyurethane foam and is in direct contact with the external environment such as soil and groundwater. The core function of the HDPE outer protective pipe is to protect the inner polyurethane insulation layer from damage and moisture absorption, while resisting soil pressure, corrosion, and external impacts during construction.

[0003] Currently, after the production process of thermal insulation pipes is completed, the quality of the finished products needs to be sampled and tested. One of the key inspection items is the strength test, especially the test of resistance to external impact. This test assesses the impact resistance and structural integrity of the thermal insulation pipe by simulating the external impacts that the pipe may suffer during transportation, installation and use, thereby determining whether the product quality meets the relevant national or industry standards.

[0004] In the process of strength testing of thermal insulation pipes, conventional operation requires applying stable pressure to the outside of the pipe body first. Before applying pressure, the thermal insulation pipe must be effectively limited and fixed to ensure that it will not shift under force, so as to ensure the accuracy of the test data. After completing the test of one part, if it is necessary to continue the strength test of other parts, the thermal insulation pipe must be moved and the positioning and fixing steps must be repeated before pressure testing can be applied again. This process is cumbersome, which not only reduces the testing efficiency but also increases the workload of operators. Therefore, the present invention provides a thermal insulation pipe strength testing device. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a thermal insulation pipe strength testing device, including a workbench, the top surface of which is provided with a pressing mechanism for pressing the thermal insulation pipe; a guide rail is fixedly connected to the top surface of the workbench, the top surface of the guide rail is provided with a first sliding groove, and a slider is slidably connected in the first sliding groove; a first hydraulic rod is fixedly connected to the top surface of the slider, and a limit sleeve is fixedly connected to the output end of the first hydraulic rod; a lead screw is internally threaded to the slider, the lead screw is rotatably connected to the inner wall of the first sliding groove, and a motor for driving the lead screw to rotate is provided on one side of the guide rail.

[0007] The extrusion mechanism includes a pair of fixed plates fixed to the top surface of the workbench. A second hydraulic rod is provided on the fixed plate, and the output end of the second hydraulic rod is fixedly connected to a first pressure plate that applies pressure to the insulation pipe.

[0008] A connecting rod is fixedly connected to the outer wall of the workbench. A second sliding groove is provided at the end of the connecting rod away from the workbench. An adjusting rod is provided in the second sliding groove. A detection component for detecting the deformation of the insulation tube is provided at the end of the adjusting rod away from the connecting rod. A moving component for controlling the movement of the adjusting rod is provided on the guide rail.

[0009] The moving component includes a third slide groove formed on the side wall of the slider, a push block is slidably connected in the third slide groove, a first spring is fixedly connected between the side of the push block near the connecting rod and the inner wall of the third slide groove, an adjusting rod is slidably connected in the second slide groove, a second spring is fixedly connected between the end of the adjusting rod away from the slider and the inner wall of the second slide groove, a conduit is connected between the second slide groove and the third slide groove, and a control valve is provided on the conduit.

[0010] The detection component includes a fixing block fixed on an adjusting rod. A fourth sliding groove is provided on both sides of the fixing block. A sliding plate is slidably connected in the fourth sliding groove. A pressure sensor is fixedly connected to the side of the fourth sliding groove near the adjusting rod. A detection spring is fixedly connected between the pressure sensor and the sliding plate.

[0011] A circular groove is provided at the end of the sliding plate away from the fixed block. A circular rod is slidably connected in the groove. An arc-shaped detection plate is fixedly connected at the end of the circular rod away from the fixed block. A control component for controlling the movement of the circular rod is provided inside the fixed block.

[0012] The control component includes a connecting groove on the side of the fixed block near the adjusting rod, a solenoid valve is installed in the connecting groove, a through groove is opened in the adjusting rod and the through groove communicates with the connecting groove, a connecting pipe communicates between the connecting groove and the circular groove, and a third spring is fixedly connected between the circular rod and the inner wall of the circular groove.

[0013] The first pressure plate has a through-hole first moving groove, and a second pressure plate is slidably connected in the first moving groove. The second pressure plate has a through-hole second moving groove, and a third pressure plate is slidably connected in the second moving groove. A first push rod and a second push rod are fixedly connected to the second hydraulic rod. The first push rod and the second push rod are both made of elastic material. A set of first elastic ropes is fixedly connected between the side wall of the second pressure plate and the side wall of the first pressure plate. A second elastic rope is fixedly connected between the side wall of the third pressure plate and the side wall of the second pressure plate. A limiting component is provided on the first pressure plate to limit the movement of the second pressure plate and the third pressure plate.

[0014] The limiting component includes a set of first circular holes formed in the inner wall of the first pressure plate, a first locking block being slidably connected in the first circular holes, a set of first locking grooves being formed in the outer wall of the second pressure plate to engage with the first locking block, a set of second circular holes being formed in the inner wall of the second pressure plate, a second locking block being slidably connected in the second circular holes, and a set of second locking grooves being formed in the outer wall of the third pressure plate to engage with the second locking block.

[0015] A fourth spring is fixedly connected between the first locking block and the inner wall of the first circular hole, and a fifth spring is fixedly connected between the second locking block and the inner wall of the second circular hole. A cavity is formed inside the first pressure plate, and a push plate is slidably connected to the inner wall of the cavity. A sixth spring is fixedly connected between the side of the push plate near the second pressure plate and the inner wall of the cavity. An electromagnet that magnetically attracts the push plate is fixedly connected to the inner wall of the cavity. A guide groove communicating with the cavity and the first circular hole is formed inside the first pressure plate. A first connecting hole communicating with the cavity is formed on the inner wall of the first pressure plate. A second connecting hole communicating with the second circular hole is formed on the outer wall of the second pressure plate. The first connecting hole and the second connecting hole communicate with each other when aligned.

[0016] The beneficial effects of this invention are as follows: 1. This invention utilizes a motor to drive a lead screw to rotate, which in turn controls the movement of a slider. The motor can drive the lead screw to rotate forward and backward, thereby controlling the slider to move left and right. As the slider moves, it moves the insulation sleeve on the limiting sleeve, allowing the first pressure plate to perform strength testing at different locations on the insulation pipe. This greatly improves the efficiency of the testing. After all testing points have been pressurized, the quality of the insulation pipe is determined by observing whether irreversible plastic deformation occurs on the insulation pipe.

[0017] 2. In this invention, the slider is controlled to move away from the motor. At this time, the inner wall of the first slide groove will push the gas in the third slide groove to enter the second slide groove through the conduit. The gas will then push the adjusting rod to move, so as to extend the fixed block to detect the insulation pipes of different lengths. After the adjustment is completed, the control valve is closed to seal the second slide groove so that the adjusting rod cannot move. Then, the insulation pipe is controlled to move closer to the connecting rod so that the detection component can continue to detect the inner wall of the insulation pipe. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the detection device in this invention; Figure 2 This is a schematic diagram of the connecting rod and slider in this invention; Figure 3 This is a schematic diagram of the internal structure of the connecting rod in this invention; Figure 4 This is a schematic diagram of the internal structure of the slider in this invention; Figure 5 This is a schematic diagram of the internal structure of the fixing block in this invention; Figure 6 This is a schematic diagram of the internal structure of the first pressure plate, the second pressure plate, and the third pressure plate in this invention; Figure 7 yes Figure 6 Enlarged view of point A.

[0020] In the diagram: 1. Workbench; 2. Guide rail; 3. First slide rail; 4. Slider; 5. First hydraulic rod; 6. Limit sleeve; 7. Motor; 8. Fixing plate; 9. Second hydraulic rod; 10. First pressure plate; 11. Connecting rod; 12. Adjusting rod; 13. Second slide rail; 14. Guide tube; 15. Control valve; 16. Third slide rail; 17. Push block; 18. Fixing block; 19. Slide plate; 20. Detection spring; 21. Pressure sensor; 2. Fourth slide groove; 23. Round rod; 24. Detection plate; 25. Through groove; 26. Connecting groove; 27. Connecting pipe; 28. Second pressure plate; 29. ​​Third pressure plate; 30. First connecting hole; 31. Second connecting hole; 32. First round hole; 33. First locking block; 34. First push rod; 35. Second push rod; 36. Second locking block; 37. Cavity; 38. Guide groove; 39. Electromagnet; 40. Push plate; 41. Second round hole. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Example 1: As Figures 1 to 5 As shown in the figure, an embodiment of the present invention provides a thermal insulation pipe strength testing device, including a workbench 1, on the top surface of which is provided with a pressing mechanism for pressing the thermal insulation pipe; a guide rail 2 is fixedly connected to the top surface of the workbench 1, and a first sliding groove 3 is formed on the top surface of the guide rail 2, within which a slider 4 is slidably connected; a first hydraulic rod 5 is fixedly connected to the top surface of the slider 4, and a limit sleeve 6 is fixedly connected to the output end of the first hydraulic rod 5; a lead screw is internally threaded onto the slider 4, and the lead screw is rotatably connected to the inner wall of the first sliding groove 3; a motor 7 for driving the lead screw to rotate is provided on one side of the guide rail 2. In this application, when performing strength testing on the insulation pipe, the insulation pipe is placed inside the limiting sleeve 6 to ensure it is horizontal. A pressing mechanism then applies stable pressure to the outer wall of the insulation pipe for 5 to 6 minutes. Afterward, the pressure is released, and a motor 7 drives a lead screw to rotate, which in turn moves a slider 4. The motor 7 can drive the lead screw to rotate forward and backward, controlling the slider 4 to move left and right. As the slider 4 moves, it moves the insulation sleeve on the limiting sleeve 6. After the next testing point on the insulation sleeve is moved to the pressing mechanism, the pressing mechanism continues to apply pressure to the outer wall of the insulation sleeve. This mechanism automatically moves and changes the position of the insulation sleeve, allowing the pressing mechanism to perform strength testing on different parts of the insulation pipe, greatly improving testing efficiency. After all testing points have been pressurized, the quality of the insulation pipe is determined by observing whether irreversible plastic deformation occurs.

[0023] The extrusion mechanism includes a pair of fixed plates 8 fixed to the top surface of the workbench 1. A second hydraulic rod 9 is provided on the fixed plate 8. The output end of the second hydraulic rod 9 is fixedly connected to a first pressure plate 10 that applies pressure to the insulation pipe. In this application, the height of the insulation pipe inside the limiting sleeve 6 is adjusted by the first hydraulic rod 5 so that the insulation pipe is located between the pair of first pressure plates 10. Then, the output end of the second hydraulic rod 9 pushes the first pressure plate 10 so that the first pressure plate 10 applies pressure to the outer wall of the insulation pipe for strength testing.

[0024] A connecting rod 11 is fixedly connected to the outer wall of the workbench 1. A second sliding groove 13 is provided at the end of the connecting rod 11 away from the workbench 1. An adjusting rod 12 is provided in the second sliding groove 13. A detection component for detecting the deformation of the insulation pipe is provided at the end of the adjusting rod 12 away from the connecting rod 11. A moving component for controlling the movement of the adjusting rod 12 is provided on the guide rail 2. After the pressure test on the outer wall of the insulation pipe is completed, the insulation pipe can be controlled to move closer to the connecting rod 11. At this time, the detection component will detect the inner wall of the insulation pipe to detect whether the inner wall of the insulation pipe has irreversible plastic deformation. By automatically detecting whether the insulation pipe has deformed, the efficiency of the entire test can be greatly improved. Since the length of different models of insulation pipes will be different, in order to allow the detection component to be used for insulation pipes of different lengths, the adjusting rod 12 can be moved by the moving component, so that the adjusting rod 12 drives the detection component to move. At this time, the detection component can be extended to detect insulation pipes of different lengths.

[0025] The moving component includes a third slide groove 16 formed on the side wall of the slider 4. A push block 17 is slidably connected in the third slide groove 16. A first spring is fixedly connected between the side of the push block 17 near the connecting rod 11 and the inner wall of the third slide groove 16. An adjusting rod 12 is slidably connected in the second slide groove 13. A second spring is fixedly connected between the end of the adjusting rod 12 away from the slider 4 and the inner wall of the second slide groove 13. A conduit 14 communicates between the second slide groove 13 and the third slide groove 16. A control valve 15 is provided on the conduit 14. This application first controls the insulation pipe to move closer to the connecting rod 11, allowing the detection component to detect the inner wall of the insulation pipe. If the detection component cannot completely detect the pressure point on the inner wall of the insulation pipe, the slider 4 can be controlled to move away from the motor 7. At this time, the inner wall of the first slide groove 3 will push the gas in the third slide groove 16 from the conduit 14 into the second slide groove 13. The gas will then push the adjusting rod 12 to move, thereby extending the detection component. After adjustment, the control valve 15 is closed, so that the second slide groove 13 is sealed, preventing the adjusting rod 12 from moving. Then, the insulation pipe is controlled to move closer to the connecting rod 11 again, allowing the detection component to continue detecting the inner wall of the insulation pipe.

[0026] The detection assembly includes a fixing block 18 fixed on an adjusting rod 12. A fourth sliding groove 22 is provided on both sides of the fixing block 18. A sliding plate 19 is slidably connected within the fourth sliding groove 22. A pressure sensor 21 is fixedly connected to the side of the fourth sliding groove 22 closest to the adjusting rod 12. A detection spring 20 is fixedly connected between the pressure sensor 21 and the sliding plate 19. When detecting whether the inner wall of the insulation pipe is deformed due to insufficient strength, the insulation pipe is moved so that the fixing block 18 enters the insulation pipe and contacts the inner wall. If the inner wall of the insulation pipe is deformed, the fixing block 18 will be obstructed, allowing it to move within the fourth sliding groove 22. At this time, the detection spring 20 applies pressure to the pressure sensor 21, which senses the pressure change and promptly sends a message to the outside indicating that the inner wall of the insulation pipe is deformed due to insufficient strength.

[0027] The sliding plate 19 has a circular groove at the end away from the fixed block 18. A circular rod 23 is slidably connected in the groove. An arc-shaped detection plate 24 is fixedly connected to the end of the circular rod 23 away from the fixed block 18. A control component for controlling the movement of the circular rod 23 is provided in the fixed block 18. The control component can control the circular rod 23 to move away from the fixed block 18, allowing the detection plate 24 to contact the inner wall of the insulation pipe. The arc-shaped detection plate 24 can increase the contact area with the insulation pipe, preventing deformation from going undetected and affecting the accuracy of the insulation pipe strength test. At the same time, by adjusting the position of the detection plate 24, it can be used to adapt to insulation pipes with different inner diameters. After the test is completed, the circular rod 23 drives the detection plate 24 to reset, so that the detection plate 24 no longer contacts the inner wall of the insulation pipe, making it convenient for the subsequent detection plate 24 to enter other insulation pipes.

[0028] The control component includes a connecting groove 26 on the side of the fixed block 18 near the adjusting rod 12, a solenoid valve is installed in the connecting groove 26, a through groove 25 is opened in the adjusting rod 12, the through groove 25 communicates with the connecting groove 26, a connecting pipe 27 communicates between the connecting groove 26 and the circular groove, and a third spring is fixedly connected between the circular rod 23 and the inner wall of the circular groove; when it is necessary to control the detection plate 24 to adapt to the inner wall of the insulation pipe, the slider 4 moves away from the motor 7, and the pusher 17 pushes the gas in the third sliding groove 16. Upon entering the second slide groove 13, the gas passes through the through groove 25 into the connecting groove 26, and then enters the circular groove through the connecting pipe 27, pushing the circular rod 23. This causes the circular rod 23 to move the detection plate 24 to the appropriate position. The solenoid valve is then closed, sealing the connecting groove 26. The insulation tube is then moved, allowing the detection plate 24 to enter the insulation tube and adhere to its inner wall. When the solenoid valve is opened and the pusher block 17 is no longer under pushing force, the third spring pulls the circular rod 23, causing it to reset the detection plate 24.

[0029] Example 2: Figures 6 to 7 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a first moving groove is provided through the first pressure plate 10, a second pressure plate 28 is slidably connected in the first moving groove, a second moving groove is provided through the second pressure plate 28, a third pressure plate 29 is slidably connected in the second moving groove, a first push rod 34 and a second push rod 35 are fixedly connected to the second hydraulic rod 9, the first push rod 34 and the second push rod 35 are both made of elastic material, a set of first elastic ropes are fixedly connected between the side wall of the second pressure plate 28 and the side wall of the first pressure plate 10, a second elastic rope is fixedly connected between the side wall of the third pressure plate 29 and the side wall of the second pressure plate 28, and a limiting component is provided on the first pressure plate 10 to limit the second pressure plate 28 and the third pressure plate 29; Since different types of insulation pipes have different outer diameters, to ensure stable pressure application, a suitable pressure plate can be selected based on the insulation pipe's characteristics. If a second pressure plate 28 is needed, the second hydraulic rod 9 moves the first pressure plate 10 closer to the first push rod 34. The first push rod 34 then pushes the second pressure plate 28. A limiting component then limits the second pressure plate 28. When pressure is applied to the insulation pipe, the second pressure plate 28 will contact the insulation pipe. If a third pressure plate 29 is needed, it continues to move closer to the second push rod 35. The second push rod 35 will push the third pressure plate 29, and the first push rod 34 will be pushed by the second pressure plate 28 to deform in order to prevent obstruction of the continued movement of the pressure plate. The length of the first push rod 34 is longer than that of the second push rod 35. Then, the limiting component is used to continue to limit the third pressure plate 29. At this time, the third pressure plate 29 is at the front and the first pressure plate 10 is at the back. Then, when pressure is applied to the insulation pipe, the third pressure plate 29 will come into contact with the insulation pipe. By releasing the limiting of the third pressure plate 29 and the second pressure plate 28, the first elastic rope and the second elastic rope will pull the second pressure plate 28 and the second pressure plate 28 to reset respectively.

[0030] The limiting component includes a set of first circular holes 32 formed on the inner wall of the first pressure plate 10, a first locking block 33 being slidably connected within the first circular holes 32, a set of first locking grooves being formed on the outer wall of the second pressure plate 28 to engage with the first locking block 33, a set of second circular holes 41 being formed on the inner wall of the second pressure plate 28, a second locking block 36 being slidably connected within the second circular holes 41, and a set of second locking grooves being formed on the outer wall of the third pressure plate 29 to engage with the second locking block 36. When the second pressure plate 28 moves, the first locking grooves on the second pressure plate 28 are aligned with the first locking block 33, and then the first locking block 33 is engaged with the first locking groove, thus fixing the second pressure plate 28. When the third pressure plate 29 moves, the second locking grooves on the third pressure plate 29 are aligned with the second locking block 36, and then the second locking block 36 is engaged with the second locking groove to fix the third pressure plate 29, thereby allowing the second pressure plate 28 and the third pressure plate 29 to apply pressure to the insulation pipe.

[0031] A fourth spring is fixedly connected between the first locking block 33 and the inner wall of the first circular hole 32. A fifth spring is fixedly connected between the second locking block 36 and the inner wall of the second circular hole 41. A cavity 37 is opened in the first pressure plate 10. A push plate 40 is slidably connected to the inner wall of the cavity 37. A sixth spring is fixedly connected between the side of the push plate 40 near the second pressure plate 28 and the inner wall of the cavity 37. An electromagnet 39 that magnetically attracts the push plate 40 is fixedly connected to the inner wall of the cavity 37. A guide groove 38 communicating with the cavity 37 and the first circular hole 32 is opened in the first pressure plate 10. A first connecting hole 30 communicating with the cavity 37 is opened in the inner wall of the first pressure plate 10. A second connecting hole 31 communicating with the second circular hole 41 is opened in the outer wall of the second pressure plate 28. The first connecting hole 30 and the second connecting hole 31 communicate when they are aligned. When the second pressure plate 28 needs to be used, it can be pushed by the first push rod 34. The second pressure plate 28 is slidably connected to the first moving groove and has a certain moving stroke. When it cannot move, the second pressure plate 28 will not move further when the first push rod 34 pushes it. At this time, the second connecting hole 31 on the second pressure plate 28 will be aligned with the first connecting hole 30. Then, the push plate 40 can be attracted by the electromagnet 39. At this time, the push plate 40 will push the gas in the cavity 37, and part of the gas will pass through the guide groove 3. 8. Enter the first circular hole 32 and push the first locking block 33 so that the first block engages with the first locking slot. Another part of the gas can enter the second circular hole 41 after passing through the first connecting hole 30 and the second connecting hole 31. At this time, the gas will push the second locking block 36. When the third pressure plate 29 needs to be used, first let the second push rod 35 push the third pressure plate 29 so that the second locking slot on the third pressure plate 29 is aligned with the second locking block 36. Then let the electromagnet 39 attract the push plate 40 so that the second locking block 36 can enter the second locking slot and engage with it.

[0032] Working principle: By placing the insulation tube into the limiting sleeve 6 to ensure its horizontal position, a pressing mechanism applies stable pressure to the outer wall of the insulation tube for 5 to 6 minutes. Afterward, the pressure is released, and a motor 7 drives a lead screw to rotate, controlling the movement of a slider 4. The motor 7 can drive the lead screw to rotate forward and backward, controlling the left and right movement of the slider 4. As the slider 4 moves, it moves the insulation sleeve on the limiting sleeve 6. Once the next detection point on the insulation sleeve reaches the pressing mechanism, the pressing mechanism continues to apply pressure to the outer wall of the insulation sleeve for inspection. The above-mentioned mechanism can automatically move and change the position of the insulation sleeve, so that the extrusion mechanism can perform strength testing at different positions of the insulation tube, which greatly improves the testing efficiency. After all the test points are pressurized, the quality of the insulation tube is judged by observing whether irreversible plastic deformation occurs on the insulation tube. In this application, the height of the insulation tube inside the limiting sleeve 6 is adjusted by the first hydraulic rod 5 so that the insulation tube is located between a pair of first pressure plates 10. Then, the output end of the second hydraulic rod 9 pushes the first pressure plate 10 so that the first pressure plate 10 applies pressure to the outer wall of the insulation tube for strength testing. After the pressure test on the outer wall of the insulation pipe is completed, the insulation pipe can be controlled to move closer to the connecting rod 11. At this time, the detection component will test the inner wall of the insulation pipe to detect whether irreversible plastic deformation has occurred. By automating the detection of whether the insulation pipe is deformed, the efficiency of the entire test can be greatly improved. Since the length of different models of insulation pipes will be different, in order to allow the detection component to be used for insulation pipes of different lengths, the adjusting rod 12 can be moved by the moving component, so that the adjusting rod 12 drives the detection component to move. At this time, the detection component can be extended to test insulation pipes of different lengths. The application first controls the insulation pipe to move closer to the connecting rod 11. The heat pipe moves closer to the connecting rod 11, allowing the detection component to detect the inner wall of the heat pipe. If the detection component cannot completely detect the pressure point on the inner wall of the heat pipe, the slider 4 can be controlled to move away from the motor 7. At this time, the inner wall of the first slide groove 3 will push the gas in the third slide groove 16 from the conduit 14 into the second slide groove 13. The gas will then push the adjusting rod 12 to move, extending the detection component. After adjustment, the control valve 15 is closed, so that the second slide groove 13 is sealed, preventing the adjusting rod 12 from moving. Then, the heat pipe is controlled to move closer to the connecting rod 11 again, allowing the detection component to continue detecting the inner wall of the heat pipe. When detecting whether the inner wall of the insulation pipe is deformed due to insufficient strength, this application moves the insulation pipe so that the fixing block 18 enters the insulation pipe and contacts the inner wall. If the inner wall of the insulation pipe is deformed, the fixing block 18 will be obstructed, allowing it to move within the fourth sliding groove 22. At this time, the detection spring 20 applies pressure to the pressure sensor 21, which senses the pressure change and promptly sends a signal to the outside indicating that the inner wall of the insulation pipe is deformed due to insufficient strength. The control component can control the round rod 23 to move away from the fixing block 18, allowing the detection plate 24 to contact the inner wall of the insulation pipe. The arc-shaped detection plate 24 increases the contact area with the insulation pipe, preventing deformation from going undetected and thus affecting the accuracy of the insulation pipe strength test. Furthermore, by adjusting the position of the detection plate 24, it can accommodate insulation pipes with different inner diameters. When the tube is in use, after the test is completed, the round rod 23 drives the detection plate 24 to reset, so that the detection plate 24 no longer contacts the inner wall of the insulation tube, so as to facilitate the subsequent entry of the detection plate 24 into other insulation tubes; when it is necessary to control the fit between the detection plate 24 and the inner wall of the insulation tube, the slider 4 moves away from the motor 7, so that the push block 17 pushes the gas in the third slide groove 16 into the second slide groove 13. At this time, the gas will enter the connecting groove 26 through the through groove 25, and then enter the round groove from the connecting pipe 27 to push the round rod 23, so that the round rod 23 drives the detection plate 24 to the appropriate position. Then the solenoid valve is closed, so that the connecting groove 26 is in a sealed state. Then the insulation tube is controlled to move, so that the detection plate 24 enters the insulation tube and fits against the inner wall of the insulation tube. By opening the solenoid valve, when the push block 17 is no longer pushed, the third spring will pull the round rod 23, so that the round rod 23 drives the detection plate 24 to reset.

[0033] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0034] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0035] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal insulation pipe strength testing device, comprising a workbench (1), wherein the top surface of the workbench (1) is provided with a pressing mechanism for pressing the thermal insulation pipe; Its features are: The top surface of the workbench (1) is fixedly connected to a guide rail (2), and the top surface of the guide rail (2) is provided with a first sliding groove (3), and a slider (4) is slidably connected in the first sliding groove (3). The top surface of the slider (4) is fixedly connected to a first hydraulic rod (5), and the output end of the first hydraulic rod (5) is fixedly connected to a limit sleeve (6). The slider (4) is internally threaded with a lead screw, which is rotatably connected to the inner wall of the first slide groove (3). A motor (7) for driving the lead screw to rotate is provided on one side of the guide rail (2).

2. The insulation pipe strength testing device according to claim 1, characterized in that: The extrusion mechanism includes a pair of fixed plates (8) fixed on the top surface of the workbench (1), and a second hydraulic rod (9) is provided on the fixed plate (8). The output end of the second hydraulic rod (9) is fixedly connected to a first pressure plate (10) that applies pressure to the insulation pipe.

3. The insulation pipe strength testing device according to claim 1, characterized in that: A connecting rod (11) is fixedly connected to the outer wall of the workbench (1). A second slide groove (13) is provided at the end of the connecting rod (1) away from the workbench (1). An adjusting rod (12) is provided in the second slide groove (13). A detection component for detecting the deformation of the heat insulation pipe is provided at the end of the adjusting rod (12) away from the connecting rod (11). A moving component for controlling the moving of the adjusting rod (12) is provided on the guide rail (2).

4. The insulation pipe strength testing device according to claim 3, characterized in that: The moving component includes a third slide groove (16) formed on the side wall of the slider (4), a push block (17) is slidably connected in the third slide groove (16), a first spring is fixedly connected between the side of the push block (17) near the connecting rod (11) and the inner wall of the third slide groove (16), the adjusting rod (12) is slidably connected in the second slide groove (13), a second spring is fixedly connected between the end of the adjusting rod (12) away from the slider (4) and the inner wall of the second slide groove (13), a conduit (14) is connected between the second slide groove (13) and the third slide groove (16), and a control valve (15) is provided on the conduit (14).

5. The insulation pipe strength testing device according to claim 4, characterized in that: The detection assembly includes a fixing block (18) fixed on the adjusting rod (12). A fourth slide groove (22) is provided on both sides of the fixing block (18). A slide plate (19) is slidably connected in the fourth slide groove (22). A pressure sensor (21) is fixedly connected to the side of the fourth slide groove (22) near the adjusting rod (12). A detection spring (20) is fixedly connected between the pressure sensor (21) and the slide plate (19).

6. The insulation pipe strength testing device according to claim 5, characterized in that: The sliding plate (19) has a circular groove at one end away from the fixed block (18). A circular rod (23) is slidably connected in the circular groove. An arc-shaped detection plate (24) is fixedly connected at one end of the circular rod (23) away from the fixed block (18). A control component for controlling the movement of the circular rod (23) is provided in the fixed block (18).

7. The insulation pipe strength testing device according to claim 6, characterized in that: The control component includes a connecting groove (26) on the side of the fixed block (18) near the adjusting rod (12), a solenoid valve is provided in the connecting groove (26), a through groove (25) is provided in the adjusting rod (12), the through groove (25) is connected to the connecting groove (26), a connecting pipe (27) is connected between the connecting groove (26) and the circular groove, and a third spring is fixedly connected between the circular rod (23) and the inner wall of the circular groove.

8. The insulation pipe strength testing device according to claim 2, characterized in that: The first pressure plate (10) has a through-hole first moving groove, and a second pressure plate (28) is slidably connected in the first moving groove. The second pressure plate (28) has a through-hole second moving groove, and a third pressure plate (29) is slidably connected in the second moving groove. A first push rod (34) and a second push rod (35) are fixedly connected to the second hydraulic rod (9). The first push rod (34) and the second push rod (35) are both made of elastic material. A set of first elastic ropes is fixedly connected between the side wall of the second pressure plate (28) and the side wall of the first pressure plate (10). A second elastic rope is fixedly connected between the side wall of the third pressure plate (29) and the side wall of the second pressure plate (28). A limiting component is provided on the first pressure plate (10) to limit the second pressure plate (28) and the third pressure plate (29).

9. The insulation pipe strength testing device according to claim 8, characterized in that: The limiting component includes a set of first circular holes (32) opened on the inner wall of the first pressure plate (10), a first locking block (33) is slidably connected in the first circular hole (32), a set of first locking grooves that engage with the first locking block (33) are opened on the outer wall of the second pressure plate (28), a set of second circular holes (41) are opened on the inner wall of the second pressure plate (28), a second locking block (36) is slidably connected in the second circular hole (41), and a set of second locking grooves that engage with the second locking block (36) are opened on the outer wall of the third pressure plate (29).

10. The insulation pipe strength testing device according to claim 9, characterized in that: A fourth spring is fixedly connected between the first locking block (33) and the inner wall of the first circular hole (32), and a fifth spring is fixedly connected between the second locking block (36) and the inner wall of the second circular hole (41). A cavity (37) is opened in the first pressure plate (10), and a push plate (40) is slidably connected to the inner wall of the cavity (37). A sixth spring is fixedly connected between the side of the push plate (40) near the second pressure plate (28) and the inner wall of the cavity (37). An electromagnet (39) is fixedly connected to the push plate (40) and magnetically attracted. The first pressure plate (10) has a guide groove (38) that communicates with the cavity (37) and the first round hole (32). The inner wall of the first pressure plate (10) has a first connecting hole (30) that communicates with the cavity (37). The outer wall of the second pressure plate (28) has a second connecting hole (31) that communicates with the second round hole (41). The first connecting hole (30) and the second connecting hole (31) communicate with each other when they are aligned.

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