Liquid cooling straight square pipeline leak detection device

Abstract

The invention discloses a liquid cooling straight square pipeline leak detection device, and belongs to the technical field of detection devices.The liquid cooling straight square pipeline leak detection device comprises a rack and further comprises pressing mechanisms, a leak detection mechanism and a marking mechanism, and the pressing mechanisms used for plugging a liquid cooling straight square pipeline and injecting compressed air are installed on the front side and the rear side of the rack correspondingly; a leak detection mechanism for detecting air leakage points of the pressed liquid cooling straight square pipeline is mounted in the rack, a marking mechanism for marking the air leakage points of the liquid cooling straight square pipeline at fixed points is mounted on the rack, and the pressing mechanism comprises a linkage mechanism and a self-clamping mechanism. By means of the mode, linkage plugging can be conducted on the side wall of the top of the pipeline through one drive, meanwhile, left-right centering clamping can be conducted on the pipeline, liquid leakage detection marking can be conducted on one station, meanwhile, feeding is conducted again after discharging is conducted on the other station, and the detection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of detection device technology, specifically a liquid-cooled straight square pipeline leak detection device. Background Technology

[0002] Liquid-cooled straight square pipes refer to straight pipes with a square or rectangular cross-section used in liquid cooling systems. They are also called square liquid-cooled manifolds and are a type of manifold mainly used for cooling pipes in data centers or servers. They usually have a main inlet and a main outlet, and multiple parallel joints on the side walls for water distribution. The inlet, outlet, and side wall joints are usually fixed by welding, so the welded parts are most prone to water and air leakage, and all welded parts on the side walls need to be inspected.

[0003] Chinese patent CN120253085A discloses a pipeline pressure testing and leak detection device, comprising a first robotic arm, a second robotic arm, and a valve. One end of the pipeline under test can be sealed and clamped by the first robotic arm, and the other end of the pipeline under test can be sealed and clamped by the second robotic arm. The medium output end of the valve is connected to the accommodating space within the pipeline under test. The pipeline pressure testing and leak detection device also includes a connecting seat, to which the first robotic arm and the second robotic arm are respectively fixedly connected. The pipeline pressure testing and leak detection device also includes a hinge and a latch. The connecting seat comprises a first connecting seat and a second connecting seat. The first robotic arm is connected to the second connecting seat, and the second robotic arm is connected to the first connecting seat. One side of the first connecting seat and the second connecting seat is connected together by the hinge, allowing the first connecting seat and the second connecting seat to rotate around the hinge. The other side of the first connecting seat and the second connecting seat is detachably connected together by the latch.

[0004] However, the technical solution of this patent has the following problems:

[0005] This patent cannot simultaneously seal the top sidewall of the pipeline with one drive while clamping the pipeline left and right, nor can it perform leakage detection and marking at one station while the other station unloads and reloads the material.

[0006] Based on this, the present invention designs a liquid-cooled straight square pipeline leak detection device to solve the above problems. Summary of the Invention

[0007] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a liquid-cooled straight square pipeline leak detection device.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A leak detection device for a liquid-cooled straight square pipe includes a frame, and further includes a pressure testing mechanism, a leak detection mechanism, and a marking mechanism. The frame is equipped with pressure testing mechanisms on both the front and rear sides for sealing the liquid-cooled straight square pipe and injecting compressed air. The frame is equipped with a leak detection mechanism for detecting leaks in the pressurized liquid-cooled straight square pipe. The frame is also equipped with a marking mechanism for marking leaks in the liquid-cooled straight square pipe.

[0010] The pressurization mechanism includes a linkage mechanism and a self-clamping mechanism. The frame is equipped with a linkage mechanism for sealing the top and side walls of the liquid-cooled straight square pipe. The lower side of the linkage mechanism is equipped with a self-clamping mechanism for self-centering and clamping the liquid-cooled straight square pipe in the left and right directions.

[0011] Furthermore, the linkage mechanism includes a first drive component and a pressing component, wherein the first drive component is mounted on the frame and the pressing component is mounted inside the frame.

[0012] Furthermore, the first drive assembly includes a sliding plate and a cylinder, wherein the sliding plate is slidably connected to the frame, the cylinder is fixedly mounted on the frame, and the output end of the cylinder is fixedly connected to the sliding plate.

[0013] Furthermore, the pressure-down assembly includes a support assembly and a sealing assembly. The frame is equipped with a support assembly for supporting the bottom and sidewalls of the liquid-cooled straight square pipe, and the support assembly is equipped with a sealing assembly for sealing and pressurizing the joints of the liquid-cooled straight square pipe.

[0014] Furthermore, the support assembly includes: an infusion frame, a base plate, and blocks. The infusion frame is fixedly installed on the frame, the base plate is fixedly installed on the infusion frame, a drain port is provided at the bottom of the infusion frame, and multiple blocks are fixedly installed on the side of the base plate away from the center of the frame.

[0015] Furthermore, the sealing assembly includes: a sliding frame, a side moving plate, a vertical plate, a first guide wheel, a fixed plug, and an air intake sealing plug. The sliding frame is slidably connected to the base plate vertically, and the side moving plate is slidably connected to the base plate front and back. Inclined strip-shaped openings are provided on both the left and right sides of the side moving plate. The first guide wheel is located in the strip-shaped opening. Two vertical plates are fixedly installed on the sliding frame. The first guide wheel is rotatably connected to the vertical plate through a rotating shaft. Multiple fixed plugs are fixedly installed on the side wall of the side moving plate near the stop. The air intake sealing plug is fixedly installed on the side of the sliding frame near the stop. The end of the sliding plate away from the cylinder is fixedly connected to the sliding frame.

[0016] Furthermore, the self-clamping mechanism includes: an L-shaped support block, a second guide wheel, and a tension spring. The two L-shaped support blocks are symmetrically connected to the left and right sides of the base plate via a rotating shaft. Multiple second guide wheels are rotatably connected to the L-shaped support blocks via a rotating shaft. A tension spring is fixedly installed on the L-shaped support block, and the end of the tension spring away from the L-shaped support block is fixedly installed on the base plate.

[0017] Furthermore, the leak detection mechanism includes a water pump and an electric valve. The water pump is fixedly installed on the frame, and an electric valve is fixedly installed at both the output and input ends of the water pump. The end of the electric valve away from the water pump is fixedly connected to the drain port at the bottom of the filling frame.

[0018] Furthermore, the leak detection mechanism also includes an identification component, which is mounted on a frame and includes an industrial camera, with multiple industrial cameras fixedly mounted on the frame.

[0019] Furthermore, the marking mechanism includes: an X-axis linear module, a Y-axis linear module, a Z-axis linear module, an extension plate, and marking spray guns. Two X-axis linear modules are fixedly mounted on the frame, the Y-axis linear module is fixedly mounted between the output ends of the two X-axis linear modules, the Z-axis linear module is fixedly mounted at the output end of the Y-axis linear module, the extension plate is fixedly mounted at the output end of the Z-axis linear module, and the two marking spray guns are fixedly mounted on the side of the extension plate away from the output end of the Z-axis linear module.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention drives the side moving plate of the sealing component to move towards the liquid-cooled straight square pipe through the first driving component, thereby driving the fixed plug to seal the joint of the side wall of the liquid-cooled straight square pipe. At the same time, the sliding frame moves downward, driving the air inlet sealing plug to move downward and to the joint above the liquid-cooled straight square pipe for sealing. The downward movement of the air inlet sealing plug causes the liquid-cooled straight square pipe to move downward and fit tightly against the bottom plate. The downward movement of the liquid-cooled straight square pipe drives the second guide wheel to move downward. The downward movement of the second guide wheel drives the L-shaped support block to rotate, causing the tension spring to undergo elastic deformation and be stretched. The rotation of the L-shaped support block clamps the left and right sides of the liquid-cooled straight square pipe in a centered manner. This is beneficial for simultaneously sealing the top side wall of the pipe with one drive while clamping the pipe in a centered manner.

[0021] 2. With a dual-station setup, clean water is injected into one filling frame, and compressed gas is ejected from the output end of the air inlet sealing plug into the liquid-cooled straight square pipe. If a leak occurs at the joint of the liquid-cooled straight square pipe, bubbles will be generated at the leak point. After the test is completed, the electric valve of the leak detection mechanism opens, and the water pump starts to pump the water in this filling frame into the other filling frame. The electric valve closes, and at this time, there is no liquid in the filling frame after the test is completed. The marking mechanism marks the location where bubbles are generated, and then the material can be unloaded and reloaded. The other station performs the test and marking, which is beneficial for one station to perform leak detection and marking while the other station unloads and reloads the material, thus improving the test efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a front view of the present invention;

[0025] Figure 3 This is a top view of the present invention;

[0026] Figure 4 For along Figure 3 A partial structural schematic diagram of the cross-sectional view along the AA direction;

[0027] Figure 5 for Figure 4 Enlarged view of A in the middle;

[0028] Figure 6 This is a partial structural schematic diagram of the pressing mechanism of the present invention;

[0029] Figure 7 This is a partial structural schematic diagram of the leak detection mechanism of the present invention;

[0030] Figure 8 This is a partial structural schematic diagram of the first driving component, the supporting component, and the sealing component of the present invention;

[0031] Figure 9 This is a partial structural schematic diagram of the sealing component of the present invention;

[0032] Figure 10 This is a partial structural schematic diagram of the sealing component and self-clamping mechanism of the present invention;

[0033] Figure 11 This is a partial structural schematic diagram of the self-clamping mechanism of the present invention.

[0034] The labels in the diagram represent:

[0035] 1. Frame; 2. Pressurization mechanism; 21. Sliding plate; 22. Cylinder; 23. Filling frame; 24. Base plate; 25. Stop block; 26. Sliding frame; 27. Side moving plate; 28. Vertical plate; 29. ​​First guide wheel; 210. Fixed plug; 211. Air inlet sealing plug; 212. Strip opening; 213. L-shaped support block; 214. Second guide wheel; 215. Tension spring; 3. Leak detection mechanism; 31. Water pump; 32. Electric valve; 33. Industrial camera; 4. Marking mechanism; 41. X-axis linear module; 42. Y-axis linear module; 43. Z-axis linear module; 44. Extension plate; 45. Marking spray gun. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] The present invention will be further described below with reference to embodiments.

[0038] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0039] Example 1: In some examples, please refer to Figures 1-11 A leak detection device for liquid-cooled straight square pipes includes a frame 1, a pressure testing mechanism 2, a leak detection mechanism 3, and a marking mechanism 4. The frame 1 is equipped with pressure testing mechanisms 2 on both the front and rear sides for sealing and injecting compressed air into the liquid-cooled straight square pipes. The frame 1 is equipped with a leak detection mechanism 3 for detecting leaks in the pressurized liquid-cooled straight square pipes. The frame 1 is equipped with a marking mechanism 4 for marking leaks in the liquid-cooled straight square pipes.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 6As shown, the pressure-pressing mechanism 2 includes a linkage mechanism and a self-clamping mechanism. The frame 1 is equipped with a linkage mechanism for blocking the top and side walls of the liquid-cooled straight square pipe. The linkage mechanism is equipped with a self-clamping mechanism for self-centering and clamping the liquid-cooled straight square pipe in the left and right directions.

[0041] The linkage mechanism includes a first drive component and a pressing component. The first drive component is mounted on the frame 1, and the pressing component is mounted inside the frame 1.

[0042] like Figure 8 As shown, the first drive assembly includes a sliding plate 21 and a cylinder 22. The sliding plate 21 is slidably connected to the frame 1, and the cylinder 22 is fixedly installed on the frame 1. The output end of the cylinder 22 is fixedly connected to the sliding plate 21.

[0043] The cylinder 22 of the first drive component of the linkage mechanism of the pressing mechanism 2 extends and drives the sliding plate 21 to move downward. The downward movement of the sliding plate 21 drives the pressing component to support and seal.

[0044] The pressure-down assembly includes a support assembly and a sealing assembly. The frame 1 is equipped with a support assembly for supporting the bottom and sidewalls of the liquid-cooled straight square pipe. The support assembly is equipped with a sealing assembly for sealing and pressurizing the joints of the liquid-cooled straight square pipe.

[0045] like Figure 4 , Figure 6 , Figure 8 As shown, the support assembly includes: a filling frame 23, a base plate 24, and a stop block 25. The filling frame 23 is fixedly installed on the frame 1, the base plate 24 is fixedly installed on the filling frame 23, the bottom of the filling frame 23 has a drain port, and a plurality of the stop blocks 25 are fixedly installed on the side of the base plate 24 away from the center of the frame 1.

[0046] The liquid-cooled straight square pipe is placed on the base plate 24 by an external robotic arm or manually, and one side of the liquid-cooled straight square pipe is limited by a stop block 25.

[0047] like Figure 8 , Figure 9 , Figure 10As shown, the sealing assembly includes: a sliding frame 26, a side moving plate 27, a vertical plate 28, a first guide wheel 29, a fixed plug 210, and an air intake sealing plug 211. The sliding frame 26 is slidably connected to the base plate 24. The side moving plate 27 is slidably connected to the base plate 24. The side moving plate 27 has inclined strip-shaped openings 212 on both the left and right sides. The first guide wheel 29 is located in the strip-shaped openings 212. The two vertical plates 28 are fixedly installed on the sliding frame 26. The first guide wheel 29 is rotatably connected to the vertical plate 28 through a rotating shaft. Multiple fixed plugs 210 are fixedly installed on the side wall of the side moving plate 27 near the stop block 25. The air intake sealing plug 211 is fixedly installed on the side of the sliding frame 26 near the stop block 25. The input end of the air intake sealing plug 211 is connected to an external air supply device. The end of the sliding plate 21 away from the cylinder 22 is fixedly connected to the sliding frame 26.

[0048] The downward movement of the sliding plate 21 causes the sliding frame 26 to move downwards, which in turn causes the vertical plate 28 to move downwards. The downward movement of the vertical plate 28 causes the first guide wheel 29 to move downwards. The first guide wheel 29 moves on the inclined strip-shaped opening 212, causing the side moving plate 27 to move towards the liquid-cooled straight square pipe. The side moving plate 27 moving towards the liquid-cooled straight square pipe causes the fixed plug 210 to seal the joint on the side wall of the liquid-cooled straight square pipe. Simultaneously, the sliding frame 26... The downward movement causes the air inlet sealing plug 211 to move downward and move to the joint above the liquid-cooled straight square pipe for sealing. The external air supply equipment provides compressed gas to the air inlet sealing plug 211. The compressed gas is sprayed out from the output end of the air inlet sealing plug 211 into the liquid-cooled straight square pipe. At this time, the leak detection mechanism detects the leak and the marking mechanism 4 marks the leak point. This is beneficial for sealing the side wall joint while connecting the upper joint of the liquid-cooled straight square pipe, which facilitates rapid leak detection.

[0049] like Figure 10 , Figure 11 As shown, the self-clamping mechanism includes: an L-shaped support block 213, a second guide wheel 214, and a tension spring 215. The two L-shaped support blocks 213 are symmetrically connected to the left and right sides of the base plate 24 by rotating shafts, and multiple second guide wheels 214 are rotatably connected to the L-shaped support blocks 213 by rotating shafts. A tension spring 215 is fixedly installed on the L-shaped support block 213, and one end of the tension spring 215 away from the L-shaped support block 213 is fixedly installed on the base plate 24.

[0050] Simultaneously, the intake sealing plug 211 moves downward, causing the liquid-cooled straight square pipe to move downward and press against the base plate 24. The downward movement of the liquid-cooled straight square pipe drives the second guide wheel 214 to move downward. The downward movement of the second guide wheel 214 drives the L-shaped support block 213 to rotate, causing the tension spring 215 to undergo elastic deformation and be stretched. The rotation of the L-shaped support block 213 clamps the left and right sides of the liquid-cooled straight square pipe in a centered manner. This is beneficial for aligning and clamping the left and right sides of the liquid-cooled straight square pipe while connecting the upper connector of the liquid-cooled straight square pipe. It is also beneficial for simultaneously sealing the top side wall of the pipe with a single drive while aligning and clamping the pipe in the left and right directions.

[0051] Example 2: In some embodiments, such as Figures 1-11 As shown, in a preferred embodiment of the present invention, the leak detection mechanism 3 includes a water pump 31 and an electric valve 32. The water pump 31 is fixedly installed on the frame 1. The electric valve 32 is fixedly installed at both the output end and the input end of the water pump 31. The end of the electric valve 32 away from the water pump 31 is fixedly connected to the drain port at the bottom of the filling frame 23. The water pump 31 is configured as a bidirectional water pump 31.

[0052] like Figure 3 , Figure 4 , Figure 7 , Figure 8As shown, water is injected into one of the filling frames 23, and compressed gas is sprayed from the output end of the air inlet sealing plug 211 into the liquid-cooled straight square pipe. If a leak occurs at the joint of the liquid-cooled straight square pipe, bubbles will be generated at the leak point. After the test is completed, the electric valve 32 of the leak detection mechanism 3 is opened, and the water pump 31 is turned on to pump the water pump 31 from this filling frame 23 into another filling frame 23. The electric valve 32 is closed. At this time, there is no liquid in the filling frame 23 after the test is completed. The marking mechanism 4 marks the place where bubbles are generated. The output end of the cylinder 22 shortens, causing the sliding plate 21 to move upward. The upward movement of the sliding plate 21 causes the sliding frame 26 to move upward. The upward movement of the sliding frame 26 causes the vertical plate 28 to move upward. The upward movement of the vertical plate 28 causes the first guide wheel 29 to move upward. The first guide wheel 29 moves on the inclined strip opening 212, causing the side moving plate 27 to move away from the liquid-cooled straight square pipe. As the pipeline moves, the side moving plate 27 moves away from the liquid-cooled straight square pipeline, causing the fixed plug 210 to move away from the joint on the side wall of the liquid-cooled straight square pipeline. At the same time, the sliding frame 26 moves upward, causing the air inlet sealing plug 211 to move upward. The elastically deformed tension spring 215 returns to its original position, pulling the L-shaped support block 213 back to its initial position. The L-shaped support block 213 rotates, causing the liquid-cooled straight square pipeline to lift away from the base plate 24 by a preset distance. At this time, the liquid-cooled straight square pipeline can be removed, avoiding the inconvenience of subsequent processing and packaging when the liquid-cooled straight square pipeline is unloaded. Moreover, the liquid rises slowly from the bottom of the filling frame 23, avoiding excessive waves when the product is placed in water, which would affect subsequent testing. The liquid in the filling frame 23 circulates and exchanges, which facilitates unloading. This allows one station to perform leakage detection and marking while another station unloads and reloads, improving testing efficiency.

[0053] The leak detection mechanism 3 further includes an identification component, which is mounted on the frame 1. The identification component includes an industrial camera 33, and multiple industrial cameras 33 are fixedly mounted on the frame 1.

[0054] The industrial camera 33 of the leak detection mechanism 3 detects air bubbles in the water during the detection process and transmits electrical signals to an external controller, which then detects the air bubbles in the water.

[0055] Example 3: In some embodiments, such as Figures 1-11As shown, in a preferred embodiment of the present invention, the marking mechanism 4 includes: an X-axis linear module 41, a Y-axis linear module 42, a Z-axis linear module 43, an extension plate 44, and marking spray guns 45. The two X-axis linear modules 41 are fixedly mounted on the frame 1. The Y-axis linear module 42 is fixedly mounted between the output ends of the two X-axis linear modules 41. The Z-axis linear module 43 is fixedly mounted at the output end of the Y-axis linear module 42. The extension plate 44 is fixedly mounted at the output end of the Z-axis linear module 43. The two marking spray guns 45 are fixedly mounted on the side of the extension plate 44 away from the output end of the Z-axis linear module 43.

[0056] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 As shown, after the liquid-cooled straight square pipeline is tested and the liquid is transferred in the filling frame 23, the external controller controls the output ends of the X-axis linear module 41, Y-axis linear module 42 and Z-axis linear module 43 to move, driving the extension plate 44 and the marking spray gun 45 to the initial position of bubble generation. The marking spray gun 45 marks the liquid-cooled straight square pipeline. After marking is completed, the liquid-cooled straight square pipeline can be removed.

[0057] In addition, the cylinder 22, water pump 31, electric valve 32, industrial camera 33, X-axis linear module 41, Y-axis linear module 42, Z-axis linear module 43 and marking spray gun 45 are all electrically connected to an external controller.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A liquid-cooled straight square pipeline leak detection device, comprising a frame (1), characterized in that, Also includes: The frame (1) is equipped with a pressure testing mechanism (2), a leak detection mechanism (3), and a marking mechanism (4). The frame (1) is equipped with a pressure testing mechanism (2) for sealing and injecting compressed air into the liquid-cooled straight square pipe. The frame (1) is equipped with a leak detection mechanism (3) for detecting leaks in the liquid-cooled straight square pipe after pressure testing. The frame (1) is equipped with a marking mechanism (4) for marking leaks in the liquid-cooled straight square pipe. The pressure-pressing mechanism (2) includes a linkage mechanism and a self-clamping mechanism. The frame (1) is equipped with a linkage mechanism for blocking the top and side walls of the liquid-cooled straight square pipe. The linkage mechanism is equipped with a self-clamping mechanism for self-centering and clamping the liquid-cooled straight square pipe in the left and right directions.

2. The liquid-cooled straight square pipeline leak detection device according to claim 1, characterized in that, The linkage mechanism includes a first drive component and a pressing component. The first drive component is mounted on the frame (1), and the pressing component is mounted inside the frame (1).

3. The liquid-cooled straight square pipeline leak detection device according to claim 2, characterized in that, The first drive assembly includes a sliding plate (21) and a cylinder (22). The sliding plate (21) is slidably connected to the frame (1), and the cylinder (22) is fixedly installed on the frame (1). The output end of the cylinder (22) is fixedly connected to the sliding plate (21).

4. The liquid-cooled straight square pipeline leak detection device according to claim 3, characterized in that, The pressure-down assembly includes a support assembly and a sealing assembly. The frame (1) is equipped with a support assembly for supporting the bottom and sidewalls of the liquid-cooled straight square pipe. The support assembly is equipped with a sealing assembly for sealing and pressurizing the joints of the liquid-cooled straight square pipe.

5. The liquid-cooled straight square pipeline leak detection device according to claim 4, characterized in that, The support assembly includes: a filling frame (23), a base plate (24), and a stop block (25). The filling frame (23) is fixedly installed on the frame (1), and the base plate (24) is fixedly installed on the filling frame (23). The bottom of the filling frame (23) has a drain port, and multiple stops (25) are fixedly installed on the side of the base plate (24) away from the center of the frame (1).

6. The liquid-cooled straight square pipeline leak detection device according to claim 5, characterized in that, The sealing assembly includes: a sliding frame (26), a side movable plate (27), a vertical plate (28), a first guide wheel (29), a fixed plug (210), and an air inlet sealing plug (211). The sliding frame (26) is slidably connected to the base plate (24) vertically, and the side movable plate (27) is slidably connected to the base plate (24) front and back. The side movable plate (27) has inclined strip-shaped openings (212) on both the left and right sides. The first guide wheel (29) is located in the strip-shaped opening (210). 12) Inside, two vertical plates (28) are fixedly installed on the sliding frame (26), the first guide wheel (29) is rotatably connected to the vertical plate (28) through a rotating shaft, a plurality of fixed plugs (210) are fixedly installed on the side wall of the side moving plate (27) near the stop (25), the air intake sealing plug (211) is fixedly installed on the side of the sliding frame (26) near the stop (25), and the end of the sliding plate (21) away from the cylinder (22) is fixedly connected to the sliding frame (26).

7. The liquid-cooled straight square pipeline leak detection device according to claim 6, characterized in that, The self-clamping mechanism includes an L-shaped support block (213), a second guide wheel (214), and a tension spring (215). The two L-shaped support blocks (213) are symmetrically connected to the left and right sides of the base plate (24) by rotating shafts. The multiple second guide wheels (214) are rotatably connected to the L-shaped support blocks (213) by rotating shafts. A tension spring (215) is fixedly installed on the L-shaped support block (213). The end of the tension spring (215) away from the L-shaped support block (213) is fixedly installed on the base plate (24).

8. The liquid-cooled straight square pipeline leak detection device according to claim 7, characterized in that, The leak detection mechanism (3) includes a water pump (31) and an electric valve (32). The water pump (31) is fixedly installed on the frame (1). The output end and the input end of the water pump (31) are both fixedly installed with electric valves (32). The end of the electric valve (32) away from the water pump (31) is fixedly connected to the drain port at the bottom of the filling frame (23).

9. The liquid-cooled straight square pipeline leak detection device according to claim 8, characterized in that, The leak detection mechanism (3) further includes an identification component, which is mounted on the frame (1) and includes an industrial camera (33), with multiple industrial cameras (33) fixedly mounted on the frame (1).

10. The liquid-cooled straight square pipeline leak detection device according to claim 9, characterized in that, The marking mechanism (4) includes: an X-axis linear module (41), a Y-axis linear module (42), a Z-axis linear module (43), an extension plate (44), and marking spray guns (45). The two X-axis linear modules (41) are fixedly mounted on the frame (1). The Y-axis linear module (42) is fixedly mounted between the output ends of the two X-axis linear modules (41). The Z-axis linear module (43) is fixedly mounted at the output end of the Y-axis linear module (42). The extension plate (44) is fixedly mounted at the output end of the Z-axis linear module (43). The two marking spray guns (45) are fixedly mounted on the side of the extension plate (44) away from the output end of the Z-axis linear module (43).

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