Waterproof leaking stoppage construction device for tunnel deformation joint

Abstract

A tunnel deformation joint waterproof leaking stoppage construction device comprises a movable lifting trolley with a telescopic arm, a rotating motor is fixedly installed on the telescopic arm, the telescopic arm drives the rotating motor to ascend and descend, and a first telescopic rod and a second telescopic rod are installed on a main shaft of the rotating motor. The first telescopic rod and the second telescopic rod are arranged in the radial direction of a main shaft of the rotating motor, the main shaft of the rotating motor drives the first telescopic rod and the second telescopic rod to rotate, and a blocking plate is connected between the telescopic end of the first telescopic rod and the telescopic end of the second telescopic rod. A filling expansion strip is arranged on the outer side of the blocking plate, a groove cleaning motor is arranged on one side of the telescopic end of the second telescopic rod, and a rotary cutter is arranged on a main shaft of the groove cleaning motor. And the filling expansion strip is used for filling through a filling device. Gel liquid can more easily flow to a leakage area, the waterproof leakage stopping quality is improved, the construction process is simple, the labor intensity is low, and the efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel waterproofing and leak plugging, and in particular to a tunnel deformation joint waterproofing and leak plugging construction device. Background Art

[0002] Tunnel deformation joints are designed to prevent the tunnel from deforming under the influence of external factors. They are usually set at the boundary between soft and hard strata, the boundary between open and dark caves, and the active fracture section of geological structures. They are important detailed structures of the tunnel. The waterproof treatment method of deformation joints is generally to set a waterproof layer between the lining and the surrounding rock or the primary support, and to set an embedded waterstop in the deformation joint. However, when the existing waterproof measures at the deformation joint position fail, the deformation joint water leakage problem will occur.

[0003] The treatment of water leakage in expansion joints is generally carried out by grouting. Grouting material is injected into the inside of the expansion joint, and the slurry overflows to the outside of the inner wall of the tunnel, making it difficult for the slurry to penetrate into the leakage point, affecting the service life of the plugging construction and making new leakage more likely to occur later.

[0004] Chinese invention patent CN2017105563389 discloses a composite plugging and sealing system for deformation joints and its construction method, which uses a combination of plugging agent and airbag seal to plug leaks. However, in the actual construction of this patent, the grouting process does not consider whether the slurry can easily penetrate into the leakage point. It only grouts until there is no water seepage, which cannot really guarantee the plugging quality. New leaks are still prone to occur later. Moreover, the construction steps are not simple, and multiple drilling and grouting are required in different parts, and the composite plugging structure is also relatively complicated.

[0005] Chinese invention patent CN2024107613166 discloses a repair structure and construction method for deformation joint leakage treatment, which solves the leakage problem by reinforcing and repairing deep cracks in concrete, and doubles the protection of outer waterproofing, middle blocking leakage channels, inner sealing reinforcement, and surface moisture and condensation prevention under the double-pipe flag of water-facing surface sealing. It can solve the leakage problem of brick walls of structures in the operation period in a more long-term and stable manner. However, the construction uses many tools and requires manual operation, which is labor-intensive and inefficient. Summary of the invention

[0006] The purpose of the present invention is to address the deficiencies of the prior art and thereby provide a tunnel deformation joint waterproofing and plugging construction device which can make the gel liquid flow more easily to the leakage area, improve the waterproofing and plugging quality, and has a simple construction process, low labor intensity and high efficiency.

[0007] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present invention is: a tunnel deformation joint waterproof plugging construction device, comprising a mobile lifting trolley with a telescopic arm, a rotating motor is installed on the telescopic arm, the telescopic arm drives the rotating motor to lift and lower, a first telescopic rod and a second telescopic rod are installed on the main shaft of the rotating motor, the first telescopic rod and the second telescopic rod are both arranged along the radial direction of the main shaft of the rotating motor, the main shaft of the rotating motor drives the first telescopic rod and the second telescopic rod to rotate, a plugging plate is connected between the telescopic end of the first telescopic rod and the telescopic end of the second telescopic rod, the first telescopic rod, the second telescopic rod and the plugging plate are combined to form a fan-shaped frame, a filling expansion strip is arranged on the outer side of the plugging plate, a slot cleaning motor is arranged on one side of the telescopic end of the second telescopic rod, and a rotating cutter is arranged on the main shaft of the slot cleaning motor; The filling expansion strip is filled by a filling device; The rotary cutter has a step structure and can cut a sunken cutting groove on the inner walls of both sides of the deformation joint at the leakage point; The side of the filling expansion strip away from the blocking plate is in a hammer head structure. The filling expansion strip can enter the cutting groove position through the deformation seam in an unfilled state, and then the filling expansion strip is filled and expanded to make the hammer head structure match and fit in the cutting groove.

[0008] Based on the above, the filling device includes a cylinder with one end open and the other end sealed, the cylinder is arranged on one side of the first telescopic rod, a piston is slidably provided in the cylinder, the piston and the sealed end of the cylinder together form a compression chamber of the cylinder, the compression chamber of the cylinder is connected to the filling and expansion strip through an air supply hose, and a driving mechanism is provided on the cylinder, the driving mechanism drives the piston to slide to press the gas or gel pressure in the compression chamber of the cylinder into the filling and expansion strip.

[0009] Based on the above, the driving mechanism includes a pull rod fixedly connected to the inner side surface of the piston, the other end of the pull rod passes through the blocking end of the cylinder and is provided with a support plate, the support plate is provided with a magnet, the cylinder or the outer cylinder of the first telescopic rod is provided with an electromagnet corresponding to the magnet, a slide groove is axially provided on one side of the telescopic part of the first telescopic rod, a slider is slidably provided in the slide groove, a first strong spring is connected between the slider and the inner wall of one end of the slide groove, and the slider is fixedly connected to the support plate; initially, the electromagnet is energized to absorb the magnet, and the first elastic spring is in an elastic deformation state. During filling, the electromagnet is powered off to release the magnet, and the first elastic spring returns to a natural state to drive the pull rod to move outward, so that the pull rod drives the piston to slide to press the gas or gel pressure in the compression chamber of the cylinder into the filling and expansion strip.

[0010] Based on the above, the cylinder is also provided with a locking mechanism for preventing the piston from withdrawing after the piston presses the gas or gel pressure in the compression chamber of the cylinder into the filling expansion strip.

[0011] Based on the above, the locking mechanism includes a limit rod fixedly connected to the outer side surface of the piston, the other end of the limit rod is provided with a limit through hole, the limit rod is fitted with the inner wall of the cylinder, the side of the cylinder is provided with an avoidance hole corresponding to the limit rod, an insertion rod is inserted in the avoidance hole, and a second strong spring sleeved on the insertion rod is connected between the outer end of the insertion rod and the outer side wall of the cylinder; initially, the other end of the limit rod leaks out of the cylinder, and the limit rod blocks the avoidance hole, and when the limit rod moves along with the piston toward the cylinder to the limit through hole corresponding to the avoidance hole, the insertion rod is inserted into the limit through hole from the avoidance hole under the action of the second strong spring.

[0012] Based on the above, the locking mechanism includes a ratchet plate fixedly connected to the outer side surface of the piston, and ratchet grooves are evenly arranged on one side surface of the ratchet plate, and the slope surface of the ratchet groove is located on the outside of its vertical surface. The side of the cylinder is provided with an avoidance hole corresponding to the ratchet plate, and a plug rod is inserted in the avoidance hole. A second strong spring sleeved on the plug rod is connected between the outer end of the plug rod and the outer side wall of the cylinder, and the inner end of the plug rod is a wedge-shaped structure adapted to the ratchet groove structure and is pressed and clamped in the ratchet groove. The inner end of the plug rod cooperates with the ratchet groove to form a ratchet mechanism and only allows the ratchet plate to move toward the cylinder along with the piston.

[0013] Based on the above, the blocking plate is an arc-shaped elastic plate and convex outward, and an elastic rubber layer is provided on the outer side of the blocking plate.

[0014] Based on the above, the upper and lower ends of the blocking plate are respectively connected to a sleeve, the telescopic end of the first telescopic rod and the telescopic end of the second telescopic rod are respectively rotatably connected to a connecting column, and the two connecting columns are respectively plugged into the two sleeves in a one-to-one correspondence.

[0015] Based on the above, a contoured plug is provided at the upper end of the filling expansion strip, and the contoured plug is adapted to the entry hole formed by the starting end of the cutting groove cut by the rotary cutter.

[0016] Based on the above, a rotating seat is fixedly mounted on the main shaft of the rotating motor, and the first telescopic rod and the second telescopic rod are both fixedly connected to the rotating seat.

[0017] The present invention has substantial characteristics and progress compared with the prior art. Specifically, when the present invention is working, the mobile lifting trolley moves to the leakage area, adjusts the positions of the first telescopic rod and the second telescopic rod, and adopts the commonly used laser measurement and positioning method to locate the basic orientation, that is, the distances between the upper and lower ends of the plugging plate and the inner wall of the tunnel are within the designed distance range, the rotating motor rotates the first telescopic rod and the second telescopic rod through the rotating seat, the slot cleaning motor drives the rotating cutter to first insert into the deformation joint, and after the rotating cutter completely enters the deformation joint, the rotating cutter rotates at a high speed to cut the cutting groove on the inner walls on both sides of the deformation joint, and then the plugging plate is completely attached to the inner wall of the tunnel and covers the cutting groove, the filling expansion strip enters the position of the cutting groove through the deformation joint in a small state and then fills and expands, and through the engagement of the hammer head structure with the cutting groove, when the gel liquid is subsequently injected into the deformation joint through the grouting pipe, the filling expansion strip is not easy to separate from the inner wall of the tunnel, the plugging is more compacted, and the gel liquid is easier to flow to the leakage area, thereby improving the waterproof plugging quality, the construction process is simple, the labor intensity is small, and the efficiency is high.

[0018] When cleaning the deformation joint and cutting the cutting groove, the first telescopic rod and the second telescopic rod are used with different telescopic amounts, so that the blocking plate does not fit the inner wall of the tunnel at the beginning, which makes it easy to observe whether the path of cleaning the deformation joint matches the deformation joint, and at the same time observe whether the filling expansion strip can be blocked into the cutting groove according to the guiding path of the rotating cutter, thereby ensuring the construction quality.

[0019] The present invention does not require the use of an additional air pump or a water pump to fill the filling expansion strip, so that the structure of the filling device is simplified. In addition, by providing the locking mechanism, the piston can be prevented from retreating after the piston presses the gas or gel liquid in the compression chamber of the cylinder into the filling expansion strip. Therefore, when the gel liquid is injected into the deformation joint, the squeezing of the filling expansion strip by the gel liquid will only cause the filling expansion strip to be compressed and deformed to fit the cutting groove, and will not cause the piston to retreat, thereby improving the effect of the filling expansion strip in blocking the cutting groove, so that the injected gel liquid can fully flow to the leakage area. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a schematic diagram showing that the blocking plate of the present invention is completely fitted to the inner wall of the tunnel.

[0022] Figure 3 It is a side view of the blocking plate and the inner wall of the tunnel when the rotary cutter of the present invention cuts a cutting groove.

[0023] Figure 4It is a cross-sectional schematic diagram of the present invention for plugging a deformation joint.

[0024] Figure 5 It is a schematic diagram of the first grooving method for cleaning deformation joints of the present invention.

[0025] Figure 6 It is a schematic diagram of the second grooving method for cleaning deformation joints of the present invention.

[0026] Figure 7 It is a schematic diagram of the structure of the filling device in Example 2 of the present invention.

[0027] Figure 8 It is a structural schematic diagram of the locking mechanism in Example 3 of the present invention.

[0028] Fig. 9 It is a cross-sectional view of the locking mechanism in Example 3 of the present invention.

[0029] In the figure: 1. telescopic arm; 2. mobile lifting trolley; 3. rotating motor; 4. rotating seat; 5. first telescopic rod; 6. second telescopic rod; 7. plugging plate; 8. filling expansion strip; 9. slot cleaning motor; 10. rotating cutter; 11. cutting groove; 12. hammer structure; 13. contour plug; 14. tunnel inner wall; 15. casing; 16. connecting column; 17. cylinder; 18. piston; 19. air supply hose; 20. pull rod; 21. support plate; 22. magnet; 23. electromagnet; 24. limit rod; 25. limit through hole; 26. plug rod; 27. second strong spring; 28. ratchet plate; 29. ​​ratchet groove; 30. leakage area. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described in detail below through specific implementation methods.

[0031] Example 1 like Figures 1 to 6As shown, a tunnel deformation joint waterproof plugging construction device comprises a mobile lifting trolley 2 with a telescopic arm 1 (existing technology, the specific structure and working principle are not repeated here), a rotating motor 3 is installed on the telescopic arm 1, the telescopic arm 1 drives the rotating motor 3 to rise and fall, a rotating seat 4 is fixedly installed on the main shaft of the rotating motor 3, a first telescopic rod 5 and a second telescopic rod 6 are fixedly connected to the rotating seat 4, the first telescopic rod 5 and the second telescopic rod 6 are both arranged along the radial direction of the main shaft of the rotating motor 3, the main shaft of the rotating motor 3 drives the first telescopic rod 5 and the second telescopic rod 6 to rotate through the rotating seat 4, a plugging plate 7 is connected between the telescopic end of the first telescopic rod 5 and the telescopic end of the second telescopic rod 6, the first telescopic rod 5, the second telescopic rod 6 and the plugging plate 7 are surrounded by a fan-shaped frame, a filling expansion strip 8 is arranged on the outside of the plugging plate 7, a slot cleaning motor 9 is arranged on one side of the telescopic end of the second telescopic rod 6, and a rotating cutter 10 is arranged on the main shaft of the slot cleaning motor 9; The filling expansion strip 8 is filled by a filling device; The rotary cutter 10 is a step structure, and can cut a sunken cutting groove 11 on the inner wall of both sides of the deformation joint at the leakage point; The side of the filling expansion strip 8 away from the blocking plate 7 is in the form of a hammer head structure 12. The filling expansion strip 8 can enter the cutting groove 11 through the deformation joint in the unfilled state, and then the filling expansion strip 8 is filled and expanded to make the hammer head structure 12 match and fit in the cutting groove 11.

[0032] A contour plug 13 is provided at the upper end of the filling expansion strip 8 , and the contour plug 13 is adapted to the entry hole formed by the starting end of the cutting groove 11 cut by the rotary cutter 10 .

[0033] According to the structural characteristics of the tunnel, the rotary cutter 10 has two ways of cleaning the deformation joints during the rotation of the first telescopic rod 5 and the second telescopic rod 6: The first method of cleaning deformation joints is Figure 5 As shown, the elongation of the second telescopic rod 6 is greater than that of the first telescopic rod 5. The elongation of the second telescopic rod 6 pushes the slot cleaning motor 9 and the rotary cutter 10 toward the inner wall 14 of the tunnel, so that the rotary cutter 10 first drills into the deformation joint. After the rotary cutter 10 completely enters the deformation joint, the rotary motor 3 drives the first telescopic rod 5 and the second telescopic rod 6 to rotate through the rotating seat 4. At the same time, the rotary cutter 10 rotates at a high speed driven by the slot cleaning motor 9 to cut the sunken cutting groove 11 on the inner walls on both sides of the deformation joint. The upper end of the cutting groove 11 forms an entry hole, which is blocked by the contoured plug 13, and the thin diameter section of the rotary cutter 10 cleans the elastic plugging material in the deformation joint.

[0034] The second method of cleaning deformation joints is Figure 6 As shown, the rotary cutter 10 cuts into the deformation seam in an arc shape. The rotary cutter 10 gradually penetrates into the deformation seam during rotation, thereby making it easier to enter the deformation seam. For this cleaning method, the use of the contoured plug 13 can also ensure the blocking effect.

[0035] Moreover, the first telescopic rod 5 and the second telescopic rod 6 have different telescopic amounts, so that the blocking plate 7 does not fit the inner wall 14 of the tunnel at the beginning, which makes it easy to observe whether the path of clearing the deformation joint matches the deformation joint, and at the same time observe whether the filling expansion strip 8 can be blocked into the cutting groove 11 according to the guiding path of the rotating cutter 10, thereby ensuring the construction quality.

[0036] Furthermore, the upper and lower ends of the plugging plate 7 are respectively connected to a sleeve 15, and the telescopic end of the first telescopic rod 5 and the telescopic end of the second telescopic rod 6 are respectively rotatably connected to a connecting column 16, and the two connecting columns 16 are respectively plugged into the two sleeves 15 in a one-to-one correspondence. In this way, the plugging plate 7 is easy to replace. If the walls on both sides of the deformation joint are not flat, adaptive compensation is performed through the structure of the plugging plate 7. The plugging plate 7 is an arc-shaped elastic plate and convex outward. The outer side of the plugging plate 7 is provided with an elastic rubber layer, so that the plugging plate 7 can adapt to the extrusion and fitting of the arc surface or the plane, reduce the overflow of the gel liquid injected into the deformation joint, and prevent the gel liquid from not penetrating into the leakage area 30. In this embodiment, the plugging plate 7 is a steel plate. In other embodiments, the plugging plate 7 can also be other elastic plates.

[0037] When the present embodiment is working, the mobile lifting trolley 2 moves to the leakage area 30, adjusts the positions of the first telescopic rod 5 and the second telescopic rod 6, and adopts the commonly used laser measurement and positioning method to perform basic orientation positioning, that is, the distances from the upper and lower ends of the blocking plate 7 to the inner wall 14 of the tunnel are within the designed distance range, the rotating motor 3 rotates the first telescopic rod 5 and the second telescopic rod 6 through the rotating seat 4, and the slot cleaning motor 9 drives the rotating cutter 10 to be inserted into the deformation joint first. After the rotating cutter 10 completely enters the deformation joint, the rotating cutter 10 rotates at high speed to cut the cutting groove 11 on the inner walls on both sides of the deformation joint. Subsequently, the plugging plate 7 is completely attached to the inner wall 14 of the tunnel and covers the cutting groove 11. The filling expansion strip 8 enters the position of the cutting groove 11 through the deformation joint in a small state and then fills and expands. It is suitable for repairing long strip gaps and provides guidance for them. Through the engagement of the hammer head structure 12 with the cutting groove 11, when the gel liquid is subsequently injected into the deformation joint through the grouting pipe, the filling expansion strip 8 is not easy to separate from the inner wall 14 of the tunnel, and the cutting groove 11 is sealed more compactly, making it easier for the gel liquid to flow to the leakage area 30, thereby improving the quality of waterproofing and plugging. The construction process is simple, the labor intensity is low, and the efficiency is high.

[0038] Example 2 On the basis of Example 1, Figure 7 As shown, the filling device includes a cylinder 17 with one end open and the other end blocked, the cylinder 17 is arranged on one side of the first telescopic rod 5, and a piston 18 is slidably provided in the cylinder 17, and the piston 18 and the blocked end of the cylinder 17 together form a compression chamber of the cylinder 17, and the compression chamber of the cylinder 17 is connected to the filling and expansion strip 8 through an air supply hose 19, and the air supply hose 19 is arranged through the blocking plate 7; a driving mechanism is arranged on the cylinder 17, and the driving mechanism drives the piston 18 to slide to press the gas or gel pressure in the compression chamber of the cylinder 17 into the filling and expansion strip 8.

[0039] The driving mechanism includes a pull rod 20 fixedly connected to the inner side of the piston 18, the other end of the pull rod 20 passes through the blocking end of the cylinder 17 and is connected to a support plate 21, the support plate 21 is connected to an iron magnet 22, the outer cylinder of the first telescopic rod 5 is connected to an electromagnet 23 corresponding to the iron magnet 22, the electromagnet 23 can also be fixed to the cylinder 17, a sliding groove is axially provided on one side of the telescopic part of the first telescopic rod 5, a slider is slidably provided in the sliding groove, a first strong spring is connected between the slider and the inner wall of one end of the sliding groove, and the slider is fixedly connected to the support plate 21; initially, the electromagnet 23 is energized to absorb the iron magnet 22, and the first elastic spring is in an elastic deformation state. During filling, the electromagnet 23 is powered off to release the iron magnet 22, and the first elastic spring returns to a natural state to drive the pull rod 20 to move outward, so that the pull rod 20 drives the piston 18 to slide and press the gas or gel in the compression chamber of the cylinder 17 into the filling and expansion strip 8.

[0040] The cylinder 17 is also provided with a locking mechanism for preventing the piston 18 from withdrawing after the piston 18 presses the gas or gel pressure in the compression chamber of the cylinder 17 into the filling expansion strip 8 .

[0041] The locking mechanism includes a limit rod 24 fixedly connected to the outer side surface of the piston 18, and the other end of the limit rod 24 is provided with a limit through hole 25, the limit rod 24 is in contact with the inner wall of the cylinder 17, and the side of the cylinder 17 is provided with an avoidance hole corresponding to the limit rod 24, and an insertion rod 26 is inserted in the avoidance hole, and a second strong spring 27 sleeved on the insertion rod 26 is connected between the outer end of the insertion rod 26 and the outer side wall of the cylinder 17; initially, the other end of the limit rod 24 leaks out of the cylinder 17, and the limit rod 24 blocks the avoidance hole. When the limit rod 24 moves along with the piston 18 toward the cylinder 17 to the limit through hole 25 corresponding to the avoidance hole, the insertion rod 26 is inserted into the limit through hole 25 from the avoidance hole under the action of the second strong spring 27.

[0042] When the present embodiment is working, there is no need to use an additional air pump or water pump to fill the filling expansion strip 8, so that the structure of the filling device is simplified. Initially, the electromagnet 23 is adsorbed by the magnet 22. After the rotary cutter 10 cuts the groove, the plugging plate 7 is separately attached to the inner wall 14 of the tunnel through the first telescopic rod 5 and the second telescopic rod 6. At this time, the filling expansion strip 8 is in a slender strip structure, which can be easily entered into the cutting groove 11. After the plugging plate 7 is attached to the inner wall 14 of the tunnel, the electromagnet 23 is powered off to release the magnet 22. Under the action of the first elastic spring, the pull rod 20 drives the piston 18 to slide, and the piston 18 presses the gas or gel liquid in the compression chamber of the cylinder 17 into the filling expansion strip 8. The filling expansion strip 8 expands, and the hammer head structure 12 is engaged and sealed in the cutting groove 11. When air is used, the filling expansion strip 8 can be used repeatedly. When gel liquid is used, after the plugging is completed, the filling expansion strip 8 remains in the deformation joint. After the piston 18 slides, when the limiting through hole 25 on the limiting rod 24 corresponds to the avoidance hole, the insertion rod 26 is inserted into the limiting through hole 25 from the avoidance hole under the action of the second strong spring 27 to lock the limiting rod 24. Then, when the gel liquid is injected into the deformation joint, the squeezing of the filling and expansion strip 8 by the gel liquid will only cause the filling and expansion strip 8 to be compressed and deformed to fit the cutting groove 11, and will not cause the piston 18 to retreat, thereby improving the effect of the filling and expansion strip 8 in blocking the cutting groove 11, so that the injected gel liquid can fully flow to the leakage area 30.

[0043] Example 3 Different from Example 2, Figure 8 and Fig. 9 As shown, the locking mechanism includes a ratchet plate 28 fixedly connected to the outer side surface of the piston 18, and ratchet grooves 29 are evenly provided on one side surface of the ratchet plate 28. The slope surface of the ratchet groove 29 is located on the outside of its vertical surface. The side of the cylinder 17 is provided with an avoidance hole corresponding to the ratchet plate 28, and a plug rod 26 is inserted in the avoidance hole. A second strong spring 27 sleeved on the plug rod 26 is connected between the outer end of the plug rod 26 and the outer side wall of the cylinder 17. The inner end of the plug rod 26 is a wedge-shaped structure adapted to the structure of the ratchet groove 29 and is pressed and clamped in the ratchet groove 29. The inner end of the plug rod 26 cooperates with the ratchet groove 29 to form a ratchet mechanism and only allows the ratchet plate 28 to move toward the cylinder 17 along with the piston 18.

[0044] When this embodiment is working, since the inner end of the insertion rod 26 is in a wedge-shaped structure that is compatible with the ratchet groove 29 structure and is pressed and clamped in the ratchet groove 29, the inner end of the insertion rod 26 cooperates with the ratchet groove 29 to form a ratchet mechanism and only allows the ratchet plate 28 to move toward the cylinder 17 with the piston 18. Therefore, the insertion rod 26 has a one-way locking function for the ratchet plate 28. When the gel liquid is injected into the deformation joint, the squeezing of the filling expansion strip 8 by the gel liquid will only cause the filling expansion strip 8 to be compressed and deformed to fit the cutting groove 11, and will not cause the piston 18 to retreat, thereby improving the effect of the filling expansion strip 8 in blocking the cutting groove 11, so that the injected gel liquid can fully flow to the leakage area 30.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A tunnel deformation joint waterproof plugging construction device, comprising a mobile lifting trolley with a telescopic arm, characterized in that: A rotating motor is installed on the telescopic arm, and the telescopic arm drives the rotating motor to rise and fall. A first telescopic rod and a second telescopic rod are installed on the main shaft of the rotating motor. The first telescopic rod and the second telescopic rod are both arranged along the radial direction of the main shaft of the rotating motor. The main shaft of the rotating motor drives the first telescopic rod and the second telescopic rod to rotate. A blocking plate is connected between the telescopic end of the first telescopic rod and the telescopic end of the second telescopic rod. The first telescopic rod, the second telescopic rod and the blocking plate are combined to form a fan-shaped frame. A filling expansion strip is arranged on the outer side of the blocking plate. A slot cleaning motor is arranged on one side of the telescopic end of the second telescopic rod, and a rotating cutter is arranged on the main shaft of the slot cleaning motor. The filling expansion strip is filled by a filling device; The rotary cutter has a step structure and can cut a sunken cutting groove on the inner walls of both sides of the deformation joint at the leakage point; The side of the filling expansion strip away from the blocking plate is in a hammer head structure. The filling expansion strip can enter the cutting groove position through the deformation seam in an unfilled state, and then the filling expansion strip is filled and expanded to make the hammer head structure match and fit in the cutting groove.

2. The tunnel deformation joint waterproofing and leak-proofing construction device according to claim 1 is characterized by: The filling device includes a cylinder with one end open and the other end blocked, the cylinder is arranged on one side of the first telescopic rod, a piston is slidably provided in the cylinder, the piston and the blocked end of the cylinder together form a compression chamber of the cylinder, the compression chamber of the cylinder is connected to the filling and expansion strip through an air supply hose, and a driving mechanism is arranged on the cylinder, the driving mechanism drives the piston to slide to press the gas or gel pressure in the compression chamber of the cylinder into the filling and expansion strip.

3. The tunnel deformation joint waterproofing and leak-proofing construction device according to claim 2 is characterized by: The driving mechanism includes a pull rod fixedly connected to the inner side surface of the piston, the other end of the pull rod passes through the blocking end of the cylinder and is provided with a support plate, the support plate is provided with a magnet, the cylinder or the outer cylinder of the first telescopic rod is provided with an electromagnet corresponding to the magnet, a slide groove is axially provided on one side of the telescopic part of the first telescopic rod, a slider is slidably provided in the slide groove, a first strong spring is connected between the slider and the inner wall of one end of the slide groove, and the slider is fixedly connected to the support plate; initially, the electromagnet is energized to absorb the magnet, and the first elastic spring is in an elastic deformation state. During filling, the electromagnet is de-energized to release the magnet, and the first elastic spring returns to a natural state to drive the pull rod to move outward, so that the pull rod drives the piston to slide to press the gas or gel pressure in the compression chamber of the cylinder into the filling and expansion strip.

4. The tunnel deformation joint waterproofing and plugging construction device according to claim 2 or 3, characterized in that: The cylinder is also provided with a locking mechanism for preventing the piston from withdrawing after the piston presses the gas or gel pressure in the compression chamber of the cylinder into the filling expansion strip.

5. The tunnel deformation joint waterproofing and leak-proofing construction device according to claim 4 is characterized by: The locking mechanism includes a limit rod fixedly connected to the outer side surface of the piston, the other end of the limit rod is provided with a limit through hole, the limit rod is in contact with the inner wall of the cylinder, the side of the cylinder is provided with an avoidance hole corresponding to the limit rod, an insertion rod is inserted in the avoidance hole, and a second strong spring sleeved on the insertion rod is connected between the outer end of the insertion rod and the outer side wall of the cylinder; initially, the other end of the limit rod leaks out of the cylinder, and the limit rod blocks the avoidance hole, and when the limit rod moves along with the piston toward the cylinder to the limit through hole corresponding to the avoidance hole, the insertion rod is inserted into the limit through hole from the avoidance hole under the action of the second strong spring.

6. The tunnel deformation joint waterproofing and leak-proofing construction device according to claim 4 is characterized by: The locking mechanism includes a ratchet plate fixedly connected to the outer side surface of the piston, and ratchet grooves are evenly arranged on one side surface of the ratchet plate, and the slope surface of the ratchet groove is located on the outside of its vertical surface; the side of the cylinder is provided with an avoidance hole corresponding to the ratchet plate, and a plug rod is inserted in the avoidance hole; a second strong spring sleeved on the plug rod is connected between the outer end of the plug rod and the outer side wall of the cylinder, the inner end of the plug rod is a wedge-shaped structure adapted to the ratchet groove structure and is pressed and clamped in the ratchet groove, the inner end of the plug rod cooperates with the ratchet groove to form a ratchet mechanism and only allows the ratchet plate to move toward the cylinder along with the piston.

7. The tunnel deformation joint waterproofing and leak-proofing construction device according to claim 5 or 6, characterized in that: The blocking plate is an arc-shaped elastic plate and convex outwards, and an elastic rubber layer is arranged on the outer side of the blocking plate.

8. The tunnel deformation joint waterproofing and leak-proofing construction device according to claim 7 is characterized by: The upper and lower ends of the blocking plate are respectively connected to a sleeve, the telescopic end of the first telescopic rod and the telescopic end of the second telescopic rod are respectively rotatably connected to a connecting column, and the two connecting columns are respectively plugged into the two sleeves in a one-to-one correspondence.

9. The tunnel deformation joint waterproofing and leak-proofing construction device according to claim 1, 2, 5, 6 or 8, characterized in that: The upper end of the filling expansion strip is provided with a profiling plug, and the profiling plug is adapted to the entry hole formed by the starting end of the cutting groove cut by the rotary cutter.

10. The tunnel deformation joint waterproofing and leak-proofing construction device according to claim 9, characterized in that: A rotating seat is fixedly mounted on the main shaft of the rotating motor, and the first telescopic rod and the second telescopic rod are both fixedly connected to the rotating seat.

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