A method for controlling the construction quality of waterstop strips in tunnel construction joints

Abstract

The present invention belongs to the technical field of tunnel construction, specifically a method for controlling the construction quality of waterstops in tunnel construction joints, comprising the following steps: turning on the power to preheat a welding machine, and then grinding and flattening the ends of the two waterstops to be welded; placing the overlapped grinded waterstops into the welding machine, and placing vulcanized rubber strips inside the overlapped joints of the two waterstops; starting the hydraulic rod to push the upper heating plate to extrude the waterstop, and during the process, the upper heating plate and the lower heating plate will heat the waterstop; detecting the distance between the upper heating plate and the lower heating plate by a height detection module; pushing the upper heating plate to move by the hydraulic rod saves manpower while improving the welding efficiency of the waterstop, monitoring the distance between the upper heating plate and the lower heating plate by a height monitoring module, and automatically stopping the waterstop after being welded to a specified thickness, thereby improving the welding quality of the waterstop, thereby improving the construction quality of the tunnel construction joint waterstop, and reducing the workload of the workers.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction, in particular to a method for controlling the construction quality of a waterstop strip at a tunnel construction joint. Background Art

[0002] During tunnel construction, waterstops are often installed at construction joints for waterproofing. Currently, the length of existing waterstops is often standard, which means that when the construction joint is too long, two waterstops need to be welded together. The welding quality of the waterstops often directly affects the construction quality of the tunnel construction joint.

[0003] A Chinese patent, publication number CN107387134A, discloses a method for longitudinally connecting rubber waterstops in tunnel longitudinal construction joints. The method uses a vulcanized rubber sheet as an electric heating element and a hot melt welder to weld the longitudinal rubber waterstop. The waterstop hot melt welder consists of a mold and a control box. The mold houses an electric heating element connected to the control box. The mold's interface shape is adapted to the heated element, and a temperature measurement device is located in the middle of the mold. The vulcanized rubber sheet and the vulcanized rubber at the waterstop joint are similar in material and have a strong affinity. The vulcanizing agent in the vulcanized rubber sheet diffuses to the joint interface, cross-linking with the remaining double bonds in the vulcanized rubber to form a co-vulcanization system, thus integrating the joint. This invention uses a vulcanized rubber sheet as an electric heating element and a hot melt welder to weld the longitudinal rubber waterstop. The method is simple to operate and ensures the quality of the rubber waterstop joint.

[0004] The above technical solution proposes to manually adjust the jack continuously during the heating process so that the gap between the two molds just reaches the thickness of the waterstop for welding. In addition, the workload of workers is large, and the method of manually monitoring the thickness of the waterstop is not accurate. For this reason, the present invention provides a method for controlling the construction quality of the waterstop of a tunnel construction joint. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a method for controlling the construction quality of a tunnel construction joint waterstop according to the present invention comprises the following steps:

[0007] S1. Power on the welding machine to preheat, and then grind the two ends of the waterstop to be welded smooth;

[0008] S2. Place the polished waterstops into the welding machine and place vulcanized rubber strips inside the overlap of the two waterstops;

[0009] S3, start the hydraulic rod to push the upper heating plate to squeeze the waterstop. During this process, the upper heating plate and the lower heating plate will heat the waterstop.

[0010] S4. The distance between the upper heating plate and the lower heating plate is detected by the height detection module. When the distance between the upper heating plate and the lower heating plate just reaches the thickness of the waterstop, the equipment automatically stops. During operation, the upper heating plate is pushed to move by a hydraulic rod instead of manually adjusting the jack, which saves manpower and improves the welding efficiency of the waterstop. At the same time, the distance between the upper heating plate and the lower heating plate is monitored by the height monitoring module, so that the two waterstops can be automatically shut down after being welded to the specified thickness. Compared with manual observation, it is more accurate, improves the welding quality of the waterstop, and thus improves the construction quality of the waterstop of the tunnel construction joint, while reducing the work intensity of the workers.

[0011] Preferably, a pair of insulating plates are fixed to the outside of the upper heating plate and the lower heating plate, and the height detection module includes a push rod, the push rod is fixedly connected to the insulating plate outside the lower heating plate, a pair of closing rods are provided above the push rod, and the pair of closing rods are rotatably connected to the insulating plate outside the upper heating plate, and a lifting block is provided above the closing rod, the setting position of the lifting block is adapted to the rotation trajectory of the closing rod, the closing rod is adapted to the shape of the lifting block, the lifting block is slidably connected to the insulating plate, and a return spring is fixed between the lifting block and the insulating plate, and a circuit breaker contact is fixed on one end of the lifting block away from the closing rod, and a circuit contact is provided on one end of the circuit breaker contact away from the lifting block, and the circuit contact is fixedly connected to the insulating plate; when working, during the welding process, the upper heating plate and the lower heating plate move toward each other, During this process, it will drive the insulating plates closer to each other. During the movement of the insulating plates, it will drive the push rod to move together. When the push rod moves to contact with the closing rod, the push rod will push the closing rod to rotate. As the closing rod rotates, it will gradually contact the lifting block and push the lifting block to stretch the reset spring and then push the circuit breaker contact to move. When the circuit breaker contact moves to just contact with the circuit contact, the closing rod will just rotate ninety degrees. At this time, the distance between the upper heating plate and the lower heating plate is consistent with the thickness of the waterstop. When the circuit breaker contact contacts the circuit contact, the external control system receives a signal, thereby stopping heating and allowing the waterstop to begin to cool. In this way, the effect of automatically monitoring the welding thickness of the waterstop and automatically shutting down is achieved, which improves the welding quality of the waterstop and thereby improves the construction quality of the waterstop of the tunnel construction joint.

[0012] Preferably, the end of the lifting block away from the circuit-breaking contact is rotatably connected to a transition wheel, and the exterior of the transition wheel is coated with a wear-resistant layer; during operation, the design of the transition wheel can prevent the closing rod from getting stuck in the process of pushing the lifting block, thereby facilitating the closing rod to push the lifting block to move.

[0013] Preferably, a conical block is fixed to the outside of the push rod, and a limiting block is fixed to the bottom end of the conical block; during operation, as the push rod moves, it will simultaneously drive the conical block and the limiting block to move, and the closing rod can be pushed to ninety degrees and maintained for a certain period of time through the conical block and the limiting block. At the same time, the setting of the conical block can also make the rotation of the closing rod smoother.

[0014] Preferably, a rubber pad is fixed to one end of the closing rod that is close to each other, and a sealing pad is fixed to the end of the closing rod that is away from the top rod and is in contact with the upper heating plate; when working, the setting of the rubber pad can make the closing rod close more tightly in the initial state, preventing water vapor in the tunnel from entering the interior of the insulating plate and causing corrosion to the internal device, and the setting of the sealing pad can further improve the sealing between the closing rod and the insulating plate, thereby extending the service life of the equipment.

[0015] Preferably, a limiting rod is fixed between the limiting block and the insulating plate, and a limiting baffle is fixed on the side of the limiting rod close to the lower heating plate; when working, the setting of the limiting rod can support the limiting block, so that the limiting block is more stable in the process of pushing the closing rod to move.

[0016] Preferably, the distance between a pair of the limit baffles is consistent with the width of the waterstop, and a heating wire is installed inside the limit baffle; during operation, the setting of the limit baffle can facilitate workers to limit the waterstop when installing the two waterstop ports, thereby facilitating the subsequent waterstop welding operation, and the setting of the heating wire inside the limit baffle can heat and weld both sides of the waterstop welding end, further improving the welding effect of the waterstop.

[0017] Preferably, an extrusion spring is fixed inside the insulating plate and at one end away from the closing rod, and a pressing plate is fixed to the end of the extrusion spring close to the conical block, and the pressing plate is slidably connected to the insulating plate; during operation, in the process of the two insulating plates approaching each other, the insulating plate outside the upper heating plate will drive the pressing plate to press the waterstop, so that before welding, the pressing plate will press the waterstop to limit the position, preventing the waterstop from sliding during the welding process, causing the welding position to shift, thereby improving the welding quality of the waterstop and thus improving the construction quality.

[0018] Preferably, a buffer block is provided between a pair of the lifting blocks, a buffer spring is fixed between the buffer block and the insulating plate, and the buffer block is slidingly connected to the insulating plate; during operation, during the movement of the push rod, it will gradually contact the buffer block and push the buffer block to compress the buffer spring to deform it. The setting of the buffer block and the buffer spring can buffer the push rod to prevent the impact force of the push rod from being too large and causing damage to the equipment, and after welding is completed, during the separation of the upper heating plate and the lower heating plate, the buffer spring can assist in the separation of the upper heating plate and the lower heating plate, thereby achieving the effect of facilitating the separation and removal of the waterstop after welding.

[0019] Preferably, an elastic bag is provided under the jacking block, the elastic bag is fixedly connected to the insulating plate, an exhaust pipe is connected to the end of the elastic bag away from the jacking block, the exhaust pipe is connected to the insulating plate, and a pressure valve is installed inside the exhaust pipe; during operation, during the rotation of the closing rod, it will squeeze the elastic bag to compress the elastic bag and deform it, and the pressure inside the elastic bag will increase after deformation. When the closing rod rotates ninety degrees, it indicates that the waterstop has been welded. At this time, the pressure inside the elastic bag reaches the maximum value and is greater than the threshold of the pressure valve, so that part of the gas in the elastic bag will be ejected through the exhaust pipe to cool the waterstop, which improves the cooling effect of the waterstop after welding to a certain extent.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The method for controlling the construction quality of the waterstop strips at tunnel construction joints described in the present invention saves manpower while improving the welding efficiency of the waterstop strips by pushing the upper heating plate to move through a hydraulic rod. The distance between the upper heating plate and the lower heating plate is monitored by a height monitoring module, so that the waterstop strips are automatically shut down after being welded to a specified thickness, thereby improving the welding quality of the waterstop strips, thereby improving the construction quality of the waterstop strips at tunnel construction joints, and reducing the workload of workers.

[0022] 2. The method for controlling the construction quality of a tunnel construction joint waterstop according to the present invention is as follows: BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 is a flow chart of the method of the present invention;

[0025] Figure 2 It is a three-dimensional diagram of the welding machine structure of the present invention;

[0026] Figure 3 This is a cross-sectional view of the welding machine structure of the present invention;

[0027] Figure 4 This invention Figure 3A partial enlarged view of the middle part;

[0028] Figure 5 It is a schematic diagram of the limit baffle structure in the present invention;

[0029] Figure 6 This is a schematic structural diagram of a second embodiment of the insulating plate structure of the present invention;

[0030] Figure 7 This invention Figure 6 A partial enlarged view of point B in the middle.

[0031] In the figure: 1. Welding machine; 2. Hydraulic rod; 3. Upper heating plate; 4. Lower heating plate; 5. Ejector rod; 6. Closing rod; 7. Lifting block; 8. Circuit breaker contact; 9. Circuit contact; 10. Conical block; 11. Limit block; 12. Transition wheel; 13. Buffer block; 14. Buffer spring; 15. Rubber pad; 16. Sealing pad; 17. Limit rod; 18. Limit baffle; 19. Insulation plate; 20. Extrusion spring; 21. Pressing plate; 22. Elastic bag; 23. Exhaust pipe. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] Example 1

[0034] like Figure 1 As shown, a method for controlling the construction quality of a tunnel construction joint waterstop according to an embodiment of the present invention comprises the following steps:

[0035] S1. Power on the welding machine 1 to preheat, and then grind the two ends of the waterstop to be welded smooth;

[0036] S2, put the polished water stop belt into the welding machine 1, and place the vulcanized rubber strip inside the overlap of the two water stop belts;

[0037] S3, start the hydraulic rod 2 to push the upper heating plate 3 to squeeze the waterstop. During this process, the upper heating plate 3 and the lower heating plate 4 will heat the waterstop.

[0038] S4. The distance between the upper heating plate 3 and the lower heating plate 4 is detected by the height detection module. When the distance between the upper heating plate 3 and the lower heating plate 4 just reaches the thickness of the waterstop, the equipment automatically stops. During operation, the upper heating plate 3 is pushed to move by the hydraulic rod instead of manually adjusting the jack, which saves manpower and improves the welding efficiency of the waterstop. At the same time, the distance between the upper heating plate 3 and the lower heating plate 4 is monitored by the height monitoring module, so that the two waterstops can be automatically shut down after being welded to the specified thickness. Compared with manual observation, it is more accurate, improves the welding quality of the waterstop, and thus improves the construction quality of the waterstop of the tunnel construction joint, while reducing the work intensity of the workers.

[0039] like Figures 2 to 4 As shown, a pair of insulating plates 19 are fixed to the outside of the upper heating plate 3 and the lower heating plate 4, and the height detection module includes a push rod 5, which is fixedly connected to the insulating plate 19 outside the lower heating plate 4, and a pair of closing rods 6 are arranged above the push rod 5, and a pair of closing rods 6 are rotatably connected to the insulating plate 19 outside the upper heating plate 3, and a lifting block 7 is arranged above the closing rod 6, and the setting position of the lifting block 7 is adapted to the rotation trajectory of the closing rod 6, and the closing rod 6 is adapted to the shape of the lifting block 7, and the lifting block 7 is slidably connected to the insulating plate 19, and a return spring is fixed between the lifting block 7 and the insulating plate 19, and a circuit breaker contact 8 is fixed on the end of the lifting block 7 away from the closing rod 6, and a circuit breaker contact 9 is arranged on the end of the circuit breaker contact 8 away from the lifting block 7, and the circuit contact 9 is fixedly connected to the insulating plate 19; when working, during the welding process, the upper heating plate 3 and the lower heating plate The hot plates 4 move toward each other, and in this process they will drive the insulating plates 19 closer to each other. During the movement of the insulating plates 19, they will drive the push rod 5 to move together. When the push rod 5 moves to contact with the closing rod 6, the push rod 5 will push the closing rod 6 to rotate. As the closing rod 6 rotates, it will gradually contact with the lifting block 7, and push the lifting block 7 to stretch the reset spring and then push the circuit breaker contact 8 to move. When the circuit breaker contact 8 moves to just contact with the circuit contact 9, the closing rod 6 just rotates ninety degrees. At this time, the distance between the upper heating plate 3 and the lower heating plate 4 is consistent with the thickness of the waterstop. When the circuit breaker contact 8 contacts the circuit contact 9, the external control system receives a signal, thereby stopping heating and causing the waterstop to begin to cool. In this way, the effect of automatically monitoring the welding thickness of the waterstop and automatically shutting down is achieved, which improves the welding quality of the waterstop and thereby improves the construction quality of the waterstop of the tunnel construction joint.

[0040] like Figure 4As shown, the end of the lifting block 7 away from the circuit breaker contact 8 is rotatably connected to a transition wheel 12, and the exterior of the transition wheel 12 is coated with a wear-resistant layer; when working, the design of the transition wheel 12 can prevent the closing rod 6 from getting stuck in the process of pushing the lifting block 7, making it easier for the closing rod 6 to push the lifting block 7 to move.

[0041] like Figure 4 As shown, a conical block 10 is fixed to the outside of the push rod 5, and a limit block 11 is fixed to the bottom end of the conical block 10; during operation, as the push rod 5 moves, it will simultaneously drive the conical block 10 and the limit block 11 to move, and the closing rod 6 can be pushed to ninety degrees and maintained for a certain period of time through the conical block 10 and the limit block 11. At the same time, the setting of the conical block 10 can also make the rotation of the closing rod 6 smoother.

[0042] like Figure 4 As shown, a rubber pad 15 is fixed to one end of the closing rod 6 that is close to each other, and a sealing pad 16 is fixed to the end of the closing rod 6 that is away from the top rod 5 and is in contact with the upper heating plate 3; when working, the setting of the rubber pad 15 can make the closing rod 6 close more tightly in the initial state, preventing water vapor in the tunnel from entering the interior of the insulating plate 19 and causing corrosion to the internal device thereof, and the setting of the sealing pad 16 can further improve the sealing between the closing rod 6 and the insulating plate 19, thereby extending the service life of the equipment.

[0043] like Figure 5 As shown, a limiting rod 17 is fixed between the limiting block 11 and the insulating plate 19, and a limiting baffle 18 is fixed on the side of the limiting rod 17 close to the lower heating plate 4; when working, the setting of the limiting rod 17 can support the limiting block 11, so that the limiting block 11 is more stable in the process of pushing the closing rod 6 to move.

[0044] like Figure 5 As shown, the distance between a pair of the limit baffles 18 is consistent with the width of the waterstop, and a heating wire is installed inside the limit baffle 18; during operation, the setting of the limit baffle 18 can facilitate workers to limit the waterstop when installing the two waterstop ports, thereby facilitating the subsequent waterstop welding operation, and the setting of the heating wire inside the limit baffle 18 can heat and weld both sides of the waterstop welding end, further improving the welding effect of the waterstop.

[0045] like Figure 4As shown, an extrusion spring 20 is fixed inside the insulating plate 19 and at one end away from the closing rod 6, and a pressing plate 21 is fixed to the end of the extrusion spring 20 close to the conical block 10, and the pressing plate 21 is slidably connected to the insulating plate 19; during operation, in the process of the two insulating plates 19 approaching each other, the insulating plate 19 outside the upper heating plate 3 will drive the pressing plate 21 to press the waterstop, so that before welding, the pressing plate 21 will press and limit the waterstop to prevent the waterstop from sliding during the welding process, causing the welding position to shift, thereby improving the welding quality of the waterstop and thus improving the construction quality.

[0046] like Figure 4 As shown, a buffer block 13 is arranged between a pair of the lifting blocks 7, and a buffer spring 14 is fixed between the buffer block 13 and the insulating plate 19, and the buffer block 13 is slidably connected to the insulating plate 19; during operation, during the movement of the top rod 5, it will gradually contact the buffer block 13, and push the buffer block 13 to compress the buffer spring 14 to deform it. The setting of the buffer block 13 and the buffer spring 14 can buffer the top rod 5 to prevent the top rod 5 from causing damage to the equipment due to excessive impact force, and after welding is completed, during the separation of the upper heating plate 3 and the lower heating plate 4, the buffer spring 14 can assist in the separation of the upper heating plate 3 and the lower heating plate 4, thereby achieving the effect of facilitating the separation and removal of the waterstop after welding.

[0047] Example 2

[0048] like Figures 6 and 7 As shown, in contrast to Example 1, another embodiment of the present invention is as follows: an elastic bag 22 is provided below the lifting block 7, the elastic bag 22 is fixedly connected to the insulating plate 19, the end of the elastic bag 22 away from the lifting block 7 is connected through an exhaust pipe 23, the exhaust pipe 23 is connected through the insulating plate 19, and a pressure valve is installed inside the exhaust pipe 23; during operation, during the rotation of the closing rod 6, it will squeeze the elastic bag 22 to compress the elastic bag 22 to deform it, and the elastic bag 22 will increase its internal pressure after deformation. When the closing rod 6 rotates ninety degrees, it indicates that the water stop has been welded. At this time, the pressure in the elastic bag 22 reaches the maximum value and is greater than the threshold of the pressure valve, so that part of the gas in the elastic bag 22 will be ejected through the exhaust pipe 23 to cool the water stop, which improves the cooling effect of the water stop after welding to a certain extent.

[0049] Working principle: The upper heating plate 3 is pushed by a hydraulic rod to move instead of manually adjusting the jack, which saves manpower and improves the welding efficiency of the waterstop. At the same time, the height monitoring module monitors the distance between the upper heating plate 3 and the lower heating plate 4, so that the two waterstops can be automatically shut down after being welded to the specified thickness. Compared with manual observation, it is more accurate, improves the welding quality of the waterstop, and thus improves the construction quality of the waterstop in the tunnel construction joint, while reducing the workload of workers.

[0050] When the breaker bar 1 is in contact with the upper and lower ends of the breaker bar 1, the upper and lower ends of the breaker bar 1 are in contact with each other, and the breaker bar 1 is in contact with the lower ends of the breaker bar 1. When the breaker bar 1 is in contact with the upper and lower ends of the breaker bar 1, the upper and lower ends of the breaker bar 1 are in contact with each other, and the breaker bar 1 is in contact with the lower ends of the breaker bar 1. When the breaker bar 1 is in contact with the lower ends of the breaker bar 1, the upper and lower ends of the breaker bar 1 are in contact with each other, and the breaker bar 1 is in contact with each other,

[0051] The design of the transition wheel 12 can prevent the closing rod 6 from getting stuck in the process of pushing the jacking block 7, making it easier for the closing rod 6 to push the jacking block 7 to move; in the process of the movement of the jacking rod 5, it will simultaneously drive the conical block 10 and the limit block 11 to move, and the closing rod 6 can be pushed to ninety degrees and maintained for a certain time through the conical block 10 and the limit block 11. At the same time, the setting of the conical block 10 can also make the rotation of the closing rod 6 smoother; and the setting of the rubber pad 15 can make the closing rod 6 more tightly closed in the initial state, preventing water vapor in the tunnel from entering the interior of the insulating plate 19, and The device causes corrosion, and the setting of the sealing gasket 16 can further improve the sealing between the closing rod 6 and the insulating plate 19, thereby extending the service life of the equipment; the setting of the limiting rod 17 can support the limiting block 11, so that the limiting block 11 is more stable in the process of pushing the closing rod 6 to move; and the setting of the limiting baffle 18 can facilitate workers to limit the waterstop when installing the two waterstop ports, thereby facilitating the subsequent waterstop welding operation, and the setting of the heating wire inside the limiting baffle 18 can heat and weld both sides of the waterstop welding end, further improving the welding effect of the waterstop;

[0052] When the two insulating plates 19 approach each other, the insulating plate 19 outside the upper heating plate 3 will drive the pressing plate 21 to press the waterstop, so that before welding, the pressing plate 21 will press the waterstop to limit it, preventing the waterstop from sliding during welding, resulting in deviation of the welding position, improving the welding quality of the waterstop, and thus improving the construction quality; during the movement of the push rod 5, it will gradually contact the buffer block 13, and push the buffer block 13 to compress the buffer spring 14 to deform it. The setting of the buffer block 13 and the buffer spring 14 can buffer the push rod 5 to prevent the impact force of the push rod 5 from being too large and causing damage to the equipment, and after the welding is completed, during the separation of the upper heating plate 3 and the lower heating plate 4, the buffer spring 14 can assist in the separation of the upper heating plate 3 and the lower heating plate 4, thereby achieving the effect of facilitating the separation and removal of the waterstop after welding;

[0053] During the rotation of the closing rod 6, it squeezes the elastic bladder 22, compressing the elastic bladder 22 and deforming it. After the deformation, the pressure inside the elastic bladder 22 increases. When the closing rod 6 rotates 90 degrees, it indicates that the waterstop has been welded. At this time, the pressure inside the elastic bladder 22 reaches its maximum value and exceeds the threshold of the pressure valve. As a result, part of the gas in the elastic bladder 22 is ejected through the exhaust pipe 23 to cool the waterstop, thereby improving the cooling effect of the waterstop after welding to a certain extent.

[0054] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, 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.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0056] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for controlling the construction quality of a tunnel construction joint waterstop, characterized in that: The following steps are involved: S1. Power on the welding machine (1) to preheat, and then grind the two ends of the waterstop to be welded smooth; S2, placing the polished water stop strips into the welding machine (1), and placing a vulcanized rubber strip inside the overlap of the two water stop strips; S3, start the hydraulic rod (2) to push the upper heating plate (3) to squeeze the water stop, and during this process, the upper heating plate (3) and the lower heating plate (4) will heat the water stop; S4, detecting the distance between the upper heating plate (3) and the lower heating plate (4) through the height detection module, and automatically stopping the device when the distance between the upper heating plate (3) and the lower heating plate (4) just reaches the thickness of the water stop; A pair of insulating plates (19) are fixed to the outside of the upper heating plate (3) and the lower heating plate (4); the height detection module includes a top rod (5); the top rod (5) is fixedly connected to the insulating plate (19) outside the lower heating plate (4); a pair of closing rods (6) are arranged above the top rod (5); the pair of closing rods (6) are rotatably connected to the insulating plate (19) outside the upper heating plate (3); a lifting block (7) is arranged above the closing rod (6); the setting position of the lifting block (7) is Adapting to the rotation trajectory of the closing rod (6), the closing rod (6) is adapted to the shape of the lifting block (7), the lifting block (7) is slidably connected to the insulating plate (19), a return spring is fixed between the lifting block (7) and the insulating plate (19), a circuit breaker contact (8) is fixed to the end of the lifting block (7) away from the closing rod (6), a circuit breaker contact (9) is provided at the end of the circuit breaker contact (8) away from the lifting block (7), and the circuit contact (9) is fixedly connected to the insulating plate (19).

2. A method for controlling the construction quality of a tunnel construction joint waterstop according to claim 1, characterized in that: One end of the lifting block (7) away from the circuit breaker contact (8) is rotatably connected to a transition wheel (12), and the exterior of the transition wheel (12) is plated with a wear-resistant layer.

3. A method for controlling the construction quality of a tunnel construction joint waterstop according to claim 1, characterized in that: A conical block (10) is fixed to the outside of the top rod (5), and a limiting block (11) is fixed to the bottom end of the conical block (10).

4. A method for controlling the construction quality of a tunnel construction joint waterstop according to claim 1, characterized in that: A rubber pad (15) is fixed to one end of the closing rod (6) that is close to each other, and a sealing pad (16) is fixed to the end of the closing rod (6) that is away from the top rod (5) and in contact with the upper heating plate (3).

5. A method for controlling the construction quality of a tunnel construction joint waterstop according to claim 3, characterized in that: A limiting rod (17) is fixed between the limiting block (11) and the insulating plate (19), and a limiting baffle (18) is fixed on a side of the limiting rod (17) close to the lower heating plate (4).

6. A method for controlling the construction quality of a tunnel construction joint waterstop according to claim 5, characterized in that: The distance between a pair of the limiting baffles (18) is consistent with the width of the water stop, and a heating wire is installed inside the limiting baffles (18).

7. A method for controlling the construction quality of a tunnel construction joint waterstop according to claim 1, characterized in that: An extrusion spring (20) is fixed inside the insulating plate (19) at one end away from the closing rod (6), and a pressing plate (21) is fixed at one end of the extrusion spring (20) close to the conical block (10). The pressing plate (21) is slidably connected to the insulating plate (19).

8. A method for controlling the construction quality of a tunnel construction joint waterstop according to claim 1, characterized in that: A buffer block (13) is provided between a pair of the lifting blocks (7), a buffer spring (14) is fixed between the buffer block (13) and the insulating plate (19), and the buffer block (13) is slidably connected to the insulating plate (19).

9. A method for controlling the construction quality of a tunnel construction joint waterstop according to claim 1, characterized in that: An elastic bag (22) is provided below the lifting block (7), and the elastic bag (22) is fixedly connected to the insulating plate (19). An end of the elastic bag (22) away from the lifting block (7) is connected to an exhaust pipe (23), and the exhaust pipe (23) is connected to the insulating plate (19). A pressure valve is installed inside the exhaust pipe (23).

Images