Tunnel joint leaking stoppage test device

Abstract

The device comprises a base, a lower test mold, a mounting rack, a fixing plate, a hydraulic cylinder, a connecting piece and an upper test mold, the lower test mold is fixedly mounted on the upper surface of the base, the mounting rack is fixedly mounted on the upper surface of the base, the fixing plate is fixedly mounted on the top of the mounting rack, the hydraulic cylinder is fixedly mounted in the middle of the fixing plate, and the connecting piece is fixedly mounted on the upper surface of the fixing plate. The connecting piece is fixedly installed on an output shaft of the hydraulic cylinder, the upper test mold is fixedly installed at the bottom of the connecting piece, the lower test mold and the upper test mold are provided with a fullness measuring assembly, the base and the lower test mold are internally provided with a temperature change assembly, and the mounting frame is provided with a vibration assembly. By means of the fullness measuring assembly, bubbles in a grouting area formed by the outer steel ring and the inner steel ring can be avoided, pressure in grout can be increased, air in the grout can be extruded out, a joint is more stable after the grout is solidified, and the problem that the test structure is not accurate enough due to the fact that the bubbles affect the joint strength is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel engineering, and in particular to a tunnel joint leakage plugging test device. Background Art

[0002] Tunnels are engineering structures buried in the ground and are a form of human use of underground space. Leakage in tunnel joints is inevitable, and whether the new materials and technologies used to plug leaks can achieve the expected results needs to be verified through experiments.

[0003] At present, in the process of tunnel joint plugging test, the general method is to inject epoxy resin slurry and then use water pressure to conduct joint plugging test after solidification. Although this method can intuitively judge the plugging effect of the plugging material, and for plugging materials with certain anti-deformation ability, the quantitative index value of its anti-deformation is clearly obtained through the test, but when grouting, it is judged whether the grouting is completed by observing whether the slurry overflows the slurry pipe. However, when the slurry is in a fluid state, it is easy for air to exist inside. When the slurry solidifies, bubbles will be generated inside. The existing bubbles will cause the joints to be not tight enough, which is easy to affect the accuracy of the results of the joint plugging test. This is also a more painful problem at present. Therefore, in order to ensure the accuracy of the tunnel joint plugging test, it is necessary for us to improve this experimental method.

[0004] Technical content Purpose of the invention: In view of the above-mentioned problems, the present application designs a tunnel joint leakage plugging test device, which can avoid the presence of bubbles in the grouting area formed by the outer steel ring and the inner steel ring through the fullness measuring component, and can increase the pressure inside the slurry to squeeze out the air inside it, so that the joint is more stable after the slurry solidifies, avoiding the problem of bubbles affecting the joint strength and causing the test structure to be inaccurate.

[0005] Technical solution: Tunnel joint plugging test device, including a base, a lower test mold, a mounting frame, a fixing plate, a hydraulic cylinder, a connecting piece and an upper test mold, the lower test mold is fixedly installed on the upper surface of the base, the mounting frame is fixedly installed on the upper surface of the base, the fixing plate is fixedly installed on the top of the mounting frame, the hydraulic cylinder is fixedly installed in the middle of the fixing plate, the connecting piece is fixedly installed on the output shaft of the hydraulic cylinder, the upper test mold is fixedly installed on the bottom of the connecting piece, the lower test mold and the upper test mold are provided with fullness measuring components, the base and the lower test mold are provided with temperature change components, and the mounting frame is provided with a vibration component.

[0006] The fullness measuring assembly comprises an outer steel ring and an inner steel ring, both of which are mounted on the upper surface of the lower test mold, and the upper surface of the lower test mold, the outer steel ring and the inner steel ring are concentrically arranged; A grouting pipe is fixedly installed on the surface of the outer steel ring. The grouting pipe penetrates the outer steel ring and extends to the inner side of the outer steel ring. The grouting pipe is located near the lower side of the outer steel ring. A fixing frame is fixedly installed inside the lower test mold, and the fixing frames are evenly distributed around the lower test mold. The number of the fixing frames is three, and the angle between two connected fixing frames is 120 degrees; A support column is fixedly installed on one end of the fixed frame away from the lower test mold, a reset spring is sleeved on the outer surface of the support column, a movable part is movably installed on the outer surface of the support column, a piston is fixedly installed on one end of the movable part away from the reset spring, a fullness measuring tube is movably installed on the outer surface of the piston, the fullness measuring tube is fixedly sleeved inside the outer steel ring, an observation port is opened on the surface of the fullness measuring tube, and one end of the support column away from the fixed frame is fixedly installed on the surface of the fullness measuring tube; A water inlet pipe is fixedly installed in the middle of the upper test mold, and the bottom of the water inlet pipe is located at the center of the inner circle of the inner steel ring.

[0007] The temperature change component includes a mounting groove, the mounting groove is opened inside the base, a heating device is installed in the mounting groove, a heating wire is installed on the heating device, and a temperature uniforming plate is installed at the other end of the heating wire; The temperature uniforming plate and most of the heating wires are arranged inside the lower test mold. One end of the fixed frame inside the lower test mold is sleeved on the outer surface of the heating wire. A temperature tester is installed on the upper surface of the base, and a smoke extractor is fixedly installed on the bottom of the fixed plate.

[0008] The vibration assembly includes a driving slot, which is opened inside the mounting frame, a first driving arm is movably mounted on the lower side of the driving slot, a second driving arm is movably mounted on the other end of the first driving arm, a stud is fixedly mounted on the upper end of the second driving arm, and nuts are threadedly connected on both left and right sides of the outer surface of the stud; A mounting frame is fixedly mounted on the upper end of the first driving arm, a motor is fixedly mounted on one side of the mounting frame, an eccentric wheel is fixedly mounted on the output shaft of the motor, and a vibrating member is mounted on a side of the mounting frame away from the first driving arm; The outer surface of the motor output shaft is fixedly sleeved with a first rotating wheel, the outer surface of the first rotating wheel is transmission-connected with a transmission belt, the other side of the transmission belt is transmission-connected with a second rotating wheel, a rotating shaft is fixedly installed in the middle of the second rotating wheel, a cleaning piece is installed on the outer surface of the rotating shaft, and fixed frames are movably installed at both ends of the rotating shaft, and the other end of the fixed frame is fixedly installed on the surface of the mounting frame.

[0009] The shape of the vibrating part is arc-shaped and matched with the upper test mold, and a high-temperature resistant rubber pad is arranged on the inner side of the motor.

[0010] The two nuts are respectively located on both sides of the mounting frame, and the width of the nuts is greater than the width of the upper side of the driving groove.

[0011] The outer surfaces of the first rotating wheel and the second rotating wheel are both provided with limiting grooves, and the transmission belt is connected in the limiting grooves.

[0012] One end of the reset spring is fixedly connected to the surface of the fixed frame, and the other end of the reset spring is fixedly connected to the movable part, and the movable part is movably installed inside the fullness measuring tube.

[0013] This technology provides a tunnel joint leakage test device, which has the following beneficial effects: 1. The tunnel joint leakage plugging test device can avoid the existence of bubbles in the grouting area formed by the outer steel ring and the inner steel ring through the fullness measuring component, and can increase the pressure inside the slurry to squeeze out the air inside it, so that the joint is more stable after the slurry solidifies, avoiding the problem that bubbles affect the joint strength and cause the test structure to be inaccurate.

[0014] 2. The tunnel joint leakage plugging test device can conduct leakage plugging tests on joints under temperature change conditions through temperature change components, simulating the leakage plugging effects of joints under temperature differences in different seasons. At the same time, it can accelerate the molding of epoxy resin and realize the cleaning of epoxy resin.

[0015] 3. The tunnel joint leakage plugging test device can obtain joint leakage plugging test data under vibration conditions through a vibration component, simulate the joint leakage plugging effect when a vehicle passes through a tunnel, and can assist in the cleaning of the test mold, further improving the cleaning effect of the device.

[0016] 4. The tunnel joint leakage testing device, through the cooperation between the full measurement component, the temperature change component and the vibration component, can carry out leakage testing on the joints under normal conditions, leakage testing on the joints under temperature change conditions, leakage testing on the joints under vibration conditions, and leakage testing on the joints under temperature change vibration conditions, thereby realizing leakage testing on joints under different conditions, improving the accuracy of the test, and expanding the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a side view of the structure of this application; Figure 2 This is a three-dimensional structural diagram of the full-scale component of this application; Figure 3 This is a three-dimensional structural diagram of the temperature change component of this application; Figure 4 This is a three-dimensional structural diagram of the observation port of this application; Figure 5 This is a schematic diagram of the structure inside the full tube for this application; Figure 6 This is a three-dimensional structural diagram of the vibration component of the present application; Figure 7 It is a three-dimensional structural schematic diagram of the eccentric wheel of this application.

[0018] In the figure: 1. base; 11. lower test mold; 12. mounting frame; 13. fixing plate; 14. hydraulic cylinder; 15. connecting piece; 16. upper test mold; 2. outer steel ring; 21. inner steel ring; 22. grouting pipe; 23. fixing frame; 24. supporting column; 25. reset spring; 26. movable part; 27. piston; 28. fullness measuring pipe; 29. ​​observation port; 210. water inlet pipe; 3. mounting slot; 31. heating equipment; 32. Heating wire; 33. Temperature-uniform plate; 34. Temperature tester; 35. Smoke extractor; 4. Driving slot; 41. First driving arm; 42. Second driving arm; 43. Stud; 44. Nut; 45. Mounting frame; 46. Motor; 47. Eccentric wheel; 48. Vibrating member; 49. First rotating wheel; 410. Driving belt; 411. Second rotating wheel; 412. Rotating shaft; 413. Cleaning member; 414. Fixing bracket.

[0019] Specific operation method: The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0020] Embodiment 1: Operation Mode 1: See also Figures 1 to 5 The tunnel joint plugging test device comprises a base 1, a lower test mold 11, a mounting frame 12, a fixing plate 13, a hydraulic cylinder 14, a connecting piece 15 and an upper test mold 16. The lower test mold 11 is fixedly mounted on the upper surface of the base 1, the mounting frame 12 is fixedly mounted on the upper surface of the base 1, the fixing plate 13 is fixedly mounted on the top of the mounting frame 12, the hydraulic cylinder 14 is fixedly mounted on the middle of the fixing plate 13, the connecting piece 15 is fixedly mounted on the output shaft of the hydraulic cylinder 14, the upper test mold 16 is fixedly mounted on the bottom of the connecting piece 15, the lower test mold 11 and the upper test mold 16 are provided with fullness measuring components, the base 1 and the lower test mold 11 are provided with temperature changing components, and the mounting frame 12 is provided with a vibration component; The fullness measuring assembly includes an outer steel ring 2 and an inner steel ring 21, both of which are mounted on the upper surface of the lower test mold 11, and the upper surface of the lower test mold 11, the outer steel ring 2 and the inner steel ring 21 are concentrically arranged; A grouting pipe 22 is fixedly installed on the surface of the outer steel ring 2. The grouting pipe 22 penetrates the outer steel ring 2 and extends to the inner side of the outer steel ring 2. The grouting pipe 22 is located near the lower side of the outer steel ring 2. A fixing frame 23 is fixedly installed inside the lower test mold 11. The fixing frames 23 are evenly distributed around the lower test mold 11. The number of the fixing frames 23 is three, and the angle between two connected fixing frames 23 is 120 degrees. A support column 24 is fixedly installed on one end of the fixed frame 23 away from the lower test mold 11, a reset spring 25 is sleeved on the outer surface of the support column 24, a movable part 26 is movably installed on the outer surface of the support column 24, a piston 27 is fixedly installed on the end of the movable part 26 away from the reset spring 25, a fullness measuring tube 28 is movably installed on the outer surface of the piston 27, the fullness measuring tube 28 is fixedly sleeved inside the outer steel ring 2, an observation port 29 is opened on the surface of the fullness measuring tube 28, one end of the support column 24 away from the fixed frame 23 is fixedly installed on the surface of the fullness measuring tube 28, one end of the reset spring 25 is fixedly connected to the surface of the fixed frame 23, the other end of the reset spring 25 is fixedly connected to the movable part 26, and the movable part 26 is movably installed inside the fullness measuring tube 28; A water inlet pipe 210 is fixedly installed in the middle of the upper test mold 16 , and the bottom of the water inlet pipe 210 is located at the center of the inner circle of the inner steel ring 21 .

[0021] Before the joint plugging test, the width of the joint between the lower test mold 11 and the upper test mold 16 is measured, and grouting is performed through the grouting pipe 22 to the area formed between the outer steel ring 2 and the inner steel ring 21. As the amount of grouting increases, the slurry will squeeze the piston 27. At this time, the movable part 26 will squeeze the return spring 25, so that the piston 27 moves toward the observation port 29; Then observe the position of the piston 27 through the observation port 29. When the three pistons 27 are all moved to the observation port 29, it means that the grouting completely fills the area between the lower test mold 11 and the upper test mold 16, and the return spring 25 provides resistance to the piston 27, and the slurry continues to push the piston 27, so the slurry is under pressure. At the same time, the fullness tube 28 limits the piston 27. When the piston 27 contacts the observation port 29, the pressure inside the slurry is further increased. The pressure inside the slurry will squeeze out the air inside the slurry, making the joint more stable after the slurry solidifies, avoiding the problem that bubbles affect the joint strength and cause the test structure to be inaccurate. The following is the test method. When the slurry properties are stable, water pressure is applied to a specified value through the water inlet pipe 210 to observe whether the water pressure can remain stable within a certain period of time, record the test phenomena, and make a preliminary conclusion on the water pressure resistance of the grouting material of the elastic epoxy slurry; Then start the hydraulic cylinder 14 so that the connecting piece 15 drives the upper test mold 16 to slowly rise by about 0.5 mm, measure the joint width again to ensure that the new joint width meets the requirements of the new working conditions, and then observe whether there is water leakage, and then obtain a quantitative result.

[0022] Operation Mode 2: See also Figures 1 to 3The temperature change component includes a mounting groove 3, the mounting groove 3 is opened inside the base 1, a heating device 31 is installed in the mounting groove 3, a heating wire 32 is installed on the heating device 31, and a temperature uniforming plate 33 is installed at the other end of the heating wire 32; The temperature uniforming plate 33 and most of the heating wires 32 are arranged inside the lower test mold 11. One end of the fixed frame 23 inside the lower test mold 11 is sleeved on the outer surface of the heating wire 32. A temperature tester 34 is installed on the upper surface of the base 1, and a smoke extractor 35 is fixedly installed on the bottom of the fixed plate 13.

[0023] On the basis of operation mode 1, when the grouting operation is completed, the heating device 31 can be started to heat the electric heating wire 32, and the uniform temperature plate 33 can be used to make the upper surface temperature of the lower test mold 11 more uniform. Due to the heating, the curing and forming of the slurry can be accelerated, the solidification speed of the slurry is increased, and then the efficiency of the test is improved; At the same time, the cured epoxy resin still has a certain plasticity and is relatively sensitive to environmental factors such as temperature and pressure. The temperature difference between winter and summer is very large, and the epoxy resin will change after curing due to the temperature difference. High temperature can promote the movement of resin molecules and promote intramolecular cross-linking, thereby improving its hardness and strength. By starting the heating device 31 to make the upper test mold 16 at different temperatures, and then testing it through the test method in operation mode 1, the test results of the joint plugging under the influence of temperature can be obtained, enriching the data and improving the accuracy; After the test is completed, the epoxy resin can be melted by continuously heating to more than 200 degrees, and the grouting pipe 22 is located near the lower side of the outer steel ring 2, so that the melted epoxy resin can be smoothly discharged to achieve the purpose of cleaning. At the same time, when heating the epoxy resin, it is necessary to avoid the vibration member 48 from contacting the upper test mold 16, and it is necessary to start the smoke extractor 35 to absorb the harmful gas generated by the epoxy resin; The epoxy resin in the inner cavity of the fullness measuring tube 28 will not only melt the outer steel ring 2 through heat conduction, but also because the fixed frame 23 is sleeved on the outside of the heating wire 32, it can also conduct heat through the fixed frame 23 and the support column 24, thereby improving the melting effect of the epoxy resin inside the fullness measuring tube 28. The fixed frame 23 and the support column 24 need to be made of metal materials with good thermal conductivity.

[0024] Operation Mode 3: See also Figure 1 , Figure 6 and Figure 7The vibration assembly includes a driving slot 4, which is opened inside the mounting frame 12, a first driving arm 41 is movably mounted on the lower side of the driving slot 4, a second driving arm 42 is movably mounted on the other end of the first driving arm 41, a stud 43 is fixedly mounted on the upper end of the second driving arm 42, and nuts 44 are threadedly connected on both sides of the outer surface of the stud 43, and the two nuts 44 are respectively located on both sides of the mounting frame 12, and the width of the nuts 44 is greater than the width of the upper side of the driving slot 4; A mounting frame 45 is fixedly mounted on the upper end of the first driving arm 41, a motor 46 is fixedly mounted on one side of the mounting frame 45, an eccentric wheel 47 is fixedly mounted on the output shaft of the motor 46, a vibrating member 48 is mounted on the side of the mounting frame 45 away from the first driving arm 41, the vibrating member 48 is arc-shaped and matches the upper test mold 16, and a high-temperature resistant rubber pad is arranged on the inner side of the motor 46; The outer surface of the output shaft of the motor 46 is fixedly sleeved with the first rotating wheel 49, the outer surface of the first rotating wheel 49 is transmission-connected with a transmission belt 410, the other side of the transmission belt 410 is transmission-connected with the second rotating wheel 411, a rotating shaft 412 is fixedly installed in the middle of the second rotating wheel 411, a cleaning piece 413 is installed on the outer surface of the rotating shaft 412, fixing frames 414 are movably installed at both ends of the rotating shaft 412, the other end of the fixing frame 414 is fixedly installed on the surface of the mounting frame 12, and the outer surfaces of the first rotating wheel 49 and the second rotating wheel 411 are both provided with limiting grooves, and the transmission belt 410 is transmission-connected in the limiting grooves.

[0025] Based on operation mode 2, it is proposed that the slurry is relatively sensitive to environmental factors such as temperature and pressure. When a vehicle passes through a tunnel, the tunnel will vibrate. As the tunnel vibrates, the epoxy resin at the tunnel joint will deform slightly. When the epoxy resin is deformed, it will be continuously stretched, squeezed and extruded. The stretching and squeezing will cause the thickness of the epoxy resin at the joint to be uneven. At this time, the plugging effect of each part will also change, especially when the epoxy resin is stretched; Therefore, it is very necessary to conduct a plugging test simulating the vibration of the tunnel caused by the passing of a vehicle. By driving the second driving arm 42 downward, the vibration member 48 will be driven to contact the upper test mold 16 with the cooperation of the first driving arm 41. At this time, the nut 44 needs to be tightened so that the nut 44 is in close contact with the surface of the mounting frame 12. The second driving arm 42 is fixed by the friction between the nut 44 and the mounting frame 12. Then, the eccentric wheel 47 is driven to rotate by starting the motor 46, so that the eccentric wheel 47 hits the vibration member 48, so that the vibration member 48 drives the upper test mold 16 to vibrate. Then, the test method in the operation mode 1 is used to test, and the result of the plugging test when simulating the vibration of the tunnel can be obtained. Based on the operation mode 2, since the electric heating wire 32 and the temperature-uniform plate 33 are located inside the lower test mold 11, the melted epoxy resin on the lower test mold 11 can be fully cleaned, and the epoxy resin adhered to the bottom of the upper test mold 16 will solidify again after the upper test mold 16 is cooled; At this time, it is necessary to start the hydraulic cylinder 14 so that the connecting member 15 drives the upper test mold 16 to rise, so that the bottom of the upper test mold 16 contacts the upper surface of the fullness measuring tube 28, and then start the motor 46 to drive the first rotating wheel 49 to rotate, so that the first rotating wheel 49 drives the transmission belt 410, and the transmission belt 410 drives the second rotating wheel 411 to rotate, so that the second rotating wheel 411 drives the rotating shaft 412 to rotate, and the rotating shaft 412 drives the cleaning member 413 to rotate and drive the cleaning member 413 to move, so that the cleaning member 413 cleans the solidified epoxy resin at the bottom of the upper test mold 16, and further improves the cleaning effect. At the same time, it is necessary to start the smoke extractor 35 to absorb the epoxy resin powder generated by the cleaning; In summary, the device can perform leak-proof tests on joints under normal conditions, leak-proof tests on joints under temperature-changing conditions, leak-proof tests on joints under vibration conditions, and leak-proof tests on joints under temperature-changing vibration conditions, thereby realizing leak-proof tests on joints under different conditions, improving the accuracy of the tests, and expanding the test data.

[0026] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and details may be made without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. Tunnel joint leakage test device, characterized by: It includes a base, a lower test mold, a mounting frame, a fixing plate, a hydraulic cylinder, a connecting piece and an upper test mold. The lower test mold is fixedly installed on the upper surface of the base, the mounting frame is fixedly installed on the upper surface of the base, the fixing plate is fixedly installed on the top of the mounting frame, the hydraulic cylinder is fixedly installed in the middle of the fixing plate, the connecting piece is fixedly installed on the output shaft of the hydraulic cylinder, the upper test mold is fixedly installed on the bottom of the connecting piece, the lower test mold and the upper test mold are provided with fullness measuring components, the base and the lower test mold are provided with temperature change components, and the mounting frame is provided with a vibration component.

2. The tunnel joint leakage testing device according to claim 1 is characterized in that: The fullness measuring assembly comprises an outer steel ring and an inner steel ring, both of which are mounted on the upper surface of the lower test mold, and the upper surface of the lower test mold, the outer steel ring and the inner steel ring are concentrically arranged; A grouting pipe is fixedly installed on the surface of the outer steel ring. The grouting pipe penetrates the outer steel ring and extends to the inner side of the outer steel ring. The grouting pipe is located near the lower side of the outer steel ring. A fixing frame is fixedly installed inside the lower test mold, and the fixing frames are evenly distributed around the lower test mold. The number of the fixing frames is three, and the angle between two connected fixing frames is 120 degrees; A support column is fixedly installed on one end of the fixed frame away from the lower test mold, a reset spring is sleeved on the outer surface of the support column, a movable part is movably installed on the outer surface of the support column, a piston is fixedly installed on one end of the movable part away from the reset spring, a fullness measuring tube is movably installed on the outer surface of the piston, the fullness measuring tube is fixedly sleeved inside the outer steel ring, an observation port is opened on the surface of the fullness measuring tube, and one end of the support column away from the fixed frame is fixedly installed on the surface of the fullness measuring tube; A water inlet pipe is fixedly installed in the middle of the upper test mold, and the bottom of the water inlet pipe is located at the center of the inner circle of the inner steel ring.

3. The tunnel joint leakage test device according to claim 1 is characterized in that: The temperature change component includes a mounting groove, which is opened inside the base, a heating device is installed in the mounting groove, a heating wire is installed on the heating device, and a temperature uniforming plate is installed at the other end of the heating wire; The temperature uniforming plate and most of the heating wires are arranged inside the lower test mold. One end of the fixed frame inside the lower test mold is sleeved on the outer surface of the heating wire. A temperature tester is installed on the upper surface of the base, and a smoke extractor is fixedly installed on the bottom of the fixed plate.

4. The tunnel joint leakage test device according to claim 1 is characterized in that: The vibration assembly includes a driving slot, which is opened inside the mounting frame, a first driving arm is movably mounted on the lower side of the driving slot, a second driving arm is movably mounted on the other end of the first driving arm, a stud is fixedly mounted on the upper end of the second driving arm, and nuts are threadedly connected on both left and right sides of the outer surface of the stud; A mounting frame is fixedly mounted on the upper end of the first driving arm, a motor is fixedly mounted on one side of the mounting frame, an eccentric wheel is fixedly mounted on the output shaft of the motor, and a vibrating member is mounted on a side of the mounting frame away from the first driving arm; The outer surface of the motor output shaft is fixedly sleeved with a first rotating wheel, the outer surface of the first rotating wheel is transmission-connected with a transmission belt, the other side of the transmission belt is transmission-connected with a second rotating wheel, a rotating shaft is fixedly installed in the middle of the second rotating wheel, a cleaning piece is installed on the outer surface of the rotating shaft, and fixed frames are movably installed at both ends of the rotating shaft, and the other end of the fixed frame is fixedly installed on the surface of the mounting frame.

5. The tunnel joint leakage plugging test device according to claim 4 is characterized in that: The shape of the vibration part is arc-shaped and matched with the upper test mold, and a high-temperature resistant rubber pad is arranged on the inner side of the motor.

6. The tunnel joint leakage plugging test device according to claim 4 is characterized in that: The two nuts are respectively located on both sides of the mounting frame, and the width of the nuts is greater than the width of the upper side of the driving groove.

7. The tunnel joint leakage test device according to claim 4 is characterized in that: The outer surfaces of the first rotating wheel and the second rotating wheel are both provided with limiting grooves, and the transmission belt is drivingly connected in the limiting grooves.

8. The tunnel joint leakage test device according to claim 2 is characterized in that: One end of the reset spring is fixedly connected to the surface of the fixed frame, and the other end of the reset spring is fixedly connected to the movable member, and the movable member is movably installed inside the fullness measuring tube.

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