Tunnel anti-seepage plugging structure

Abstract

The invention discloses a tunnel anti-seepage plugging structure, and belongs to the technical field of tunnel protection, the tunnel anti-seepage plugging structure comprises an expansion rubber strip, the two ends of the expansion rubber strip are fixedly connected with fixed galvanized steel plates respectively, the expansion rubber strip is fixedly connected with an extrusion galvanized steel plate far away from the binding face, and the extrusion galvanized steel plate is fixedly connected with a steel plate. A steel plate pressing frame is fixedly connected to the side, away from the expansion rubber strip, of the extrusion galvanized steel plate, a first tightening assembly is fixedly connected to the middle of the steel plate pressing frame, and second tightening assemblies are rotationally connected to the upper end and the lower end of the first tightening assembly correspondingly. By arranging the expansion adhesive tape, the expansion adhesive tape expands when meeting water during use, so that preliminary water-seepage-prevention plugging is performed on the tunnel, the water-seepage-prevention effect of the tunnel can be further improved by arranging the fixed galvanized steel sheet and the extruded galvanized steel sheet, and the water-seepage-prevention effect of the tunnel can be further improved through the galvanized steel sheet water-stop belt micro-convex mortise and tenon-water-swelling adhesive tape time sequence activation design. The joint effect of double defensive lines is free of leakage, and the waterproof project cost is reasonably saved.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel protection, and particularly relates to a tunnel anti-seepage plugging structure. Background Art

[0002] Tunnel seepage is a common disease phenomenon in underground engineering, which refers to the phenomenon that groundwater invades the tunnel interior through cracks in the tunnel lining, construction joints or weak structural parts. Its causes are complex and are usually related to geological conditions, construction quality and structural aging. In karst-developed areas, water-rich fault zones or high-water-level areas, the seepage pressure of groundwater is extremely easy to break through the tunnel waterproof layer; if the waterproof material is laid improperly, the joint treatment is not strict or there are defects in concrete pouring during construction, water seepage channels will also be formed. Long-term leakage not only accelerates concrete carbonation and steel bar corrosion, leading to a decline in structural bearing capacity, but may also cause safety hazards such as ballast ponding and equipment short circuits.

[0003] Existing anti-seepage plugging structures mostly adopt the plugging mode of cement mortar or concrete. At some holes or joints that need to be plugged, cement mortar or concrete is used for casting and plugging, and their strength and density after hardening are used to prevent seepage. However, during the setting and hardening process of cement mortar or concrete, the volume will shrink, and cracks or gaps are likely to occur at the connection with the surrounding structure, resulting in leakage at the plugged part. At the same time, this mode requires certain construction time and operating conditions, such as temperature, humidity, etc. If the environmental conditions are not good or the operation is improper during the construction process, the plugging quality will be affected. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a tunnel anti-seepage plugging structure.

[0005] The technical solution adopted to solve the above technical problem is: a tunnel anti-seepage plugging structure, including an expansion rubber strip, both ends of the expansion rubber strip are respectively fixedly connected with fixed galvanized steel plates, the expansion rubber strip and the fixed galvanized steel plates are attached to the tunnel surface, the expansion rubber strip is fixedly connected with an extrusion galvanized steel plate away from the attachment surface, one side of the extrusion galvanized steel plate away from the expansion rubber strip is fixedly connected with a steel plate pressing frame, a first tightening component is fixedly connected to the middle of the steel plate pressing frame, the upper and lower ends of the first tightening component are respectively rotatably connected with second tightening components, and the two second tightening components are respectively meshed and rotatably connected with the two fixed galvanized steel plates.

[0006] Further, the first tightening component includes an I-shaped frame, transmission cabins are fixedly connected to both sides of the I-shaped frame, hand wheels are respectively rotatably connected to the middle parts of the two transmission cabins, connection grooves are respectively fixedly connected to both sides of the middle part of the transmission cabin, several connection grooves are respectively slidably meshed with the steel plate pressing frame, and a matrix convex ring is fixedly connected to the middle surface of the transmission cabin, and the matrix convex ring is slidably meshed with the middle part of the steel plate pressing frame.

[0007] Through the above technical solution, when the handwheel is turned, the transmission mechanism inside the transmission cabin will drive the connecting groove and the steel plate pressing frame to slide relative to each other, thereby realizing the tightening or loosening of the steel plate pressing frame. At the same time, the setting of the matrix convex ring can increase the stability of the sliding engagement and prevent the steel plate pressing frame from shifting or shaking during the tightening process, so that when the tunnel anti-seepage sealing structure is in use, it is possible to conveniently adjust the degree of compression of the steel plate pressing frame on the tunnel surface by adjusting the handwheel, thereby realizing precise control of the tunnel anti-seepage sealing effect.

[0008] Furthermore, one end of the two hand wheels located inside the transmission cabin is respectively fixedly connected with a transmission bevel gear, a coaxial rod is fixedly connected in the middle between the two transmission bevel gears, the middle part of the coaxial rod is rotatably connected with the I-shaped frame, the upper and lower ends of the two transmission bevel gears are respectively meshed and transmission-connected with driven bevel gears, the driven bevel gear is rotatably connected to the transmission cabin, the driven bevel gear is fixedly connected with a fixed-point transmission rod at one end away from the transmission bevel gear, and the fixed-point transmission rod is rotatably connected to the inside of the transmission cabin.

[0009] Through the above technical solution, when the handwheel is turned, the transmission bevel gear will rotate accordingly, and transmit power to another transmission bevel gear through the coaxial rod, so as to realize the synchronous rotation of the two handwheels. At the same time, the meshing transmission of the transmission bevel gear and the driven bevel gear enables the driven bevel gear to drive the fixed-point transmission rod to rotate, which not only improves the transmission efficiency, but also ensures the stability and synchronization of the steel plate pressing frame during the tightening or loosening process.

[0010] Furthermore, the fixed-point transmission rod is fixedly connected to a first universal joint at one end away from the driven bevel gear, the first universal joint is fixedly connected to a telescopic transmission rod at one end away from the fixed-point transmission rod, the telescopic transmission rod penetrates the surface of the I-shaped frame, the penetrating end of the telescopic transmission rod is fixedly connected to a second universal joint, and the second universal joint is transmission-connected to the second tightening assembly at one end away from the telescopic transmission rod.

[0011] Through the above technical solution, when the fixed-point transmission rod rotates, the power can be smoothly transmitted to the telescopic transmission rod through the flexible rotation of the first universal joint. The design of the telescopic transmission rod allows it to be telescoped within a certain range to adapt to different work requirements. At the same time, the telescopic transmission rod runs through the I-frame and is connected to the second universal joint, which further enhances the flexibility and stability of the transmission. Finally, the second universal joint transmits the power to the second tightening assembly to achieve synchronous tightening or loosening of the steel plate pressing frame, which not only improves the transmission efficiency, but also ensures the accuracy and reliability of the steel plate pressing frame during the tightening or loosening process, thereby effectively improving the overall performance and sealing effect of the tunnel anti-seepage sealing structure.

[0012] Furthermore, the second tightening assembly includes a connecting box, the two sides of the connecting box are rotatably connected to the top of the working frame, an open notch is provided in the middle of one side of the connecting box, an open hexagonal nut is rotatably connected to the middle of the connecting box, the opening of the open hexagonal nut corresponds to the open notch, a plurality of limiting protrusions are fixedly connected to the inner sides of the upper and lower ends of the open hexagonal nut, the inner side of the open hexagonal nut is meshed and fixed with the nut sleeve, a plurality of limiting protrusions are slidably fitted with the surfaces of the two ends of the nut sleeve, an annular gear is fixedly connected to the outer side of the middle part of the open hexagonal nut, the annular gear is rotatably connected to the inside of the connecting box, and transmission gears are rotatably connected to the two sides of the connecting box, the two transmission gears are symmetrically arranged, the two transmission gears are respectively meshed and transmission-connected with the two sides of the annular gear, the middle parts of the two transmission gears are rotatably connected to the connecting box, and the through ends of the transmission gears are fixedly connected to the second universal joint.

[0013] Through the above technical scheme, when the second universal joint receives the power transmitted by the telescopic transmission rod, it will drive the transmission gear to rotate. Since the two transmission gears are symmetrically arranged and are respectively meshed and connected with the two sides of the annular gear, the annular gear will rotate synchronously therewith. The rotation of the annular gear further drives the open hexagonal nut to rotate. The inner side of the open hexagonal nut is meshed and fixed with the nut sleeve, and the nut sleeve is connected to the threaded rod fixed on the galvanized steel plate. Therefore, when the open hexagonal nut rotates, it will drive the nut sleeve to move on the threaded rod, thereby realizing the tightening or loosening operation of the fixed galvanized steel plate by the second tightening assembly, which not only makes the tightening process more stable and reliable, but also enhances the sealing and durability of the tunnel anti-seepage sealing structure through the self-locking characteristics of the threaded connection. At the same time, the setting of the limiting protrusion can prevent the nut sleeve from shifting or shaking during the movement, further improving the stability and safety of the sealing structure.

[0014] Furthermore, the fixed galvanized steel plate has an arc-shaped structure, and a micro-convex mortise and tenon joint is provided between the fixed galvanized steel plate and the tunnel fitting surface, a rubber strip fixing groove is provided on one side of the bottom end of the fixed galvanized steel plate, the rubber strip fixing groove is fixedly connected to the expansion rubber strip, and two bolt fixing points are provided in the middle of the fixed galvanized steel plate.

[0015] Through the above technical solution, the arc-shaped structure design of the fixed galvanized steel plate can better adapt to the curved shape of the tunnel, ensure its close fit with the tunnel wall, thereby improving the anti-seepage effect. The setting of the micro-convex tenon and mortise increases the friction between the fixed galvanized steel plate and the tunnel wall, further enhancing the stability and tightness of the connection. The fixed connection between the rubber strip fixing groove and the expansion rubber strip forms an additional waterproof barrier, effectively blocking the penetration of moisture. At the same time, the setting of the two bolt fixing points provides a more solid support for the fixed galvanized steel plate, making the entire plugging structure more stable and reliable. Through the above technical solution, the tunnel anti-seepage plugging structure demonstrates excellent tightness and durability when dealing with tunnel seepage problems, providing a strong guarantee for the long-term safe operation of the tunnel.

[0016] Furthermore, a connecting rod is rotatably connected to the surface of the fixed galvanized steel plate on the side away from the micro-convex tenon and mortise. The connecting rod is located between the two bolt fixing points. One end of the connecting rod away from the fixed galvanized steel plate is fixedly connected to a threaded rod. The middle part of the threaded rod is threadedly and rotatably connected to a nut sleeve, and the nut sleeve is meshed and rotatably connected to the second tightening assembly.

[0017] Through the above technical solution, the design of the connecting rod makes the installation and adjustment of the fixed galvanized steel plate inside the tunnel more flexible. The connecting rod is located between the two bolt fixing points, which not only ensures the stability of the structure but also provides sufficient operating space. The threaded rotation connection between the threaded rod and the nut sleeve enables the second tightening assembly to achieve the mutual tightening of the two fixed galvanized steel plates by adjusting the position of the nut sleeve. At the same time, due to the special rotation design of the connecting rod, when the second tightening assembly adjusts the position of the nut sleeve, the connecting rod also rotates inward, causing the first tightening assembly to move closer to the extrusion galvanized steel plate. Through the cooperation of the two, the fit and tightness with the tunnel wall are enhanced.

[0018] Furthermore, the steel plate pressing frame includes a square frame, which is fixedly connected to the four sides of the extrusion galvanized steel plate. Elastic connecting plates are respectively fixedly connected to the two top corner positions on both sides of the square frame. One end of each of the plurality of elastic connecting plates away from the square frame is fixedly connected to an installation convex block, and each of the plurality of installation convex blocks is slidably meshed with the connection groove.

[0019] Through the above technical solution, the design of the steel plate pressing frame further improves the stability and installation convenience of the plugging structure. The fixed connection between the square frame and the four sides of the extruded galvanized steel plate ensures that the steel plate pressing frame can evenly transfer the pressure to the galvanized steel plate, thereby enhancing the fitting degree between the steel plate and the tunnel wall. The elastic connecting plates at the two top corner positions on both sides of the square frame not only provide the necessary elastic buffer, enabling the steel plate pressing frame to adapt to the unevenness of the tunnel wall during installation, but also ensure that during long-term use, the steel plate pressing frame can always maintain a certain pressure, avoiding the decline of waterproof performance caused by minor deformations inside the tunnel. The sliding engagement design of several installation bumps and connecting grooves makes the installation and adjustment of the steel plate pressing frame more simple and rapid. At the same time, it also improves the stability and durability of the structure, not only simplifies the installation process, reduces the construction difficulty, but also helps to improve the overall waterproof effect of the plugging structure, ensuring the safety and stability inside the tunnel.

[0020] Further, two middle pressing frames are fixedly connected to the middle of the square frame. The two middle pressing frames are arranged vertically. One side of the two middle pressing frames is fixedly connected to the surface of the extruded galvanized steel plate. The two middle pressing frames are of W-shaped structure. A pressing convex plate is fixedly connected to the side away from the extruded galvanized steel plate in the middle of the two middle pressing frames.

[0021] Through the above technical solution, it can more comprehensively fit and press the surface of the galvanized steel plate, especially in the middle area, effectively preventing the leakage risk caused by the insufficient pressing of the middle part of the steel plate. The design of the W-shaped structure not only enhances the strength and stability of the pressing frame, but also increases the contact area with the steel plate, thereby improving the pressing effect. At the same time, the setting of the pressing convex plate further enhances the pressing force of the pressing frame on the steel plate, ensuring the sealing and stability of the plugging structure, not only improving the overall performance of the plugging structure, but also helping to extend its service life and reduce the maintenance cost.

[0022] Further, a fixing frame is fixedly connected to the side of the pressing convex plate away from the middle pressing frame. A pressing column is slidably connected through the middle of the fixing frame and the pressing convex plate. A limiting plate is fixedly connected to the middle of the pressing column. The limiting plate is located between the fixing frame and the pressing convex plate. A spring is fixedly connected between the limiting plate and the pressing convex plate. The pressing column is located inside the spring. One end of the pressing column on one side is slidably engaged with the matrix convex ring.

[0023] Through the above technical solution, the stable pressing of the pressing convex plate is achieved, and the pressing accuracy and stability are improved. During the pressing process, the elastic effect of the spring enables the pressing column to always maintain a tight sliding engagement with the matrix convex ring, avoiding the deterioration of the waterproof performance caused by loosening during the pressing process. At the same time, the design of the limiting plate restricts the moving range of the pressing column, preventing over-pressing or under-pressing, and further improving the reliability and stability of the waterproof plugging structure.

[0024] The beneficial effects of the present invention are as follows: 1. By setting the swelling rubber strip in the present invention, when in use, the swelling rubber strip swells when encountering water, thereby preliminarily preventing water seepage in the tunnel. By setting the fixed galvanized steel plate and the extruded galvanized steel plate, the effect of preventing water seepage in the tunnel can be further enhanced. The combined action of the double-layer defense line has no leakage. Through the sequential activation design of the micro-convex tenon and mortise of the galvanized steel plate waterstop and the swelling rubber strip when encountering water, and the coordinated defense strategy of rigid-flexible coexistence of special-shaped joints, the waterproof project cost can be reasonably saved.

[0025] 2. In the present invention, by rotating the handwheel to drive the transmission bevel gear to rotate, through a series of transmission structures, the second tightening component is further driven to rotate and tighten, so as to make the fixed galvanized steel plates approach each other. At the same time, during the tightening process of the second tightening component, the strokes of the connecting rod and the threaded rod are shortened, and the first tightening component approaches the extruded galvanized steel plate, pressing the surface of the swelling rubber strip, further enhancing the sealing performance and stability of the tunnel water seepage prevention plugging structure, making the adjustment and tightening operations of the entire plugging structure more flexible and fast, and greatly improving the construction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the first schematic diagram of the overall structure of the present invention; Figure 2 is the second schematic diagram of the overall structure of the present invention; Figure 3 is the first schematic diagram of the structure of the fixed galvanized steel plate of the present invention; Figure 4 is the second schematic diagram of the structure of the fixed galvanized steel plate of the present invention; Figure 5 is the three-dimensional schematic diagram of the tightening structure of the present invention; Figure 6 is the first schematic diagram of the structure of the steel plate pressing frame of the present invention; Figure 7 is the second schematic diagram of the structure of the steel plate pressing frame of the present invention; Figure 8 is the first schematic diagram of the structure of the first tightening component of the present invention; Figure 9 is the second schematic diagram of the structure of the first tightening component of the present invention; Figure 10It is a schematic structural diagram of the I-shaped frame of the present invention; Figure 11 It is a schematic cross-sectional view of the internal structure of the transmission cabin of the present invention; Figure 12 It is a three-dimensional schematic diagram of the overall structure of the second tightening assembly of the present invention; Figure 13 It is a schematic cross-sectional view of the internal structure of the second tightening assembly of the present invention; Figure 14 It is a schematic cross-sectional view of the internal structure of the first tightening assembly of the present invention.

[0027] Reference numerals: 1, expansion rubber strip; 2, fixed galvanized steel plate; 201, rubber strip fixing groove; 202, bolt fixing point; 203, micro-convex tenon and mortise; 204, connecting rod; 205, threaded rod; 206, nut sleeve; 3, extrusion galvanized steel plate; 4, steel plate pressing frame; 401, square frame; 402, elastic connecting plate; 403, middle pressing frame; 404, mounting convex block; 405, pressing convex plate; 406, fixing frame; 407, pressing column; 408, limiting plate; 409, spring; 5, first tightening assembly; 501, I-shaped frame; 502, transmission cabin; 503, handwheel; 504, connecting groove; 505, matrix convex ring; 506, transmission bevel gear; 507, coaxial rod; 508, driven bevel gear; 509, fixed-point transmission rod; 510, first universal joint; 511, telescopic transmission rod; 512, second universal joint; 6, second tightening assembly; 601, connecting box; 602, open notch; 603, opening internal hexagonal nut; 604, limiting convex block; 605, annular gear; 606, transmission gear. Detailed implementation manners

[0028] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] As Figures 1 to 14As shown in the figure, a tunnel anti-seepage plugging structure in this embodiment includes an expansion rubber strip 1. Fixed galvanized steel plates 2 are respectively fixedly connected to both ends of the expansion rubber strip 1. The expansion rubber strip 1 and the fixed galvanized steel plates 2 are attached to the tunnel surface. A pressing galvanized steel plate 3 is fixedly connected to the expansion rubber strip 1 away from the attachment surface. A steel plate pressing frame 4 is fixedly connected to the side of the pressing galvanized steel plate 3 away from the expansion rubber strip 1. A first tightening assembly 5 is fixedly connected to the middle of the steel plate pressing frame 4. The upper and lower ends of the first tightening assembly 5 are respectively rotatably connected to second tightening assemblies 6. The two second tightening assemblies 6 are respectively meshed and rotatably connected to the two fixed galvanized steel plates 2. Through the synergistic effect of the first tightening assembly 5 and the second tightening assemblies 6, the effective tightening of the fixed galvanized steel plates 2 and the pressing galvanized steel plate 3 is realized, thereby enhancing the sealing performance and stability of the tunnel anti-seepage plugging structure.

[0030] As Figures 3 to 4 shown, the fixed galvanized steel plate 2 has an arc-shaped structure. Micro-convex tenons and mortises 203 are provided on the attachment surface of the fixed galvanized steel plate 2 and the tunnel. A rubber strip fixing groove 201 is provided on one side at the bottom end of the fixed galvanized steel plate 2. The rubber strip fixing groove 201 is fixedly connected to the expansion rubber strip 1. Two bolt fixing points 202 are provided in the middle of the fixed galvanized steel plate 2.

[0031] As Figure 4 shown, a connecting rod 204 is rotatably connected to the surface of the fixed galvanized steel plate 2 away from the micro-convex tenons and mortises 203. The connecting rod 204 is located between the two bolt fixing points 202. A threaded rod 205 is fixedly connected to the end of the connecting rod 204 away from the fixed galvanized steel plate 2. A nut sleeve 206 is threadedly rotatably connected to the middle of the threaded rod 205. The nut sleeve 206 is meshed and rotatably connected to the second tightening assembly 6. During the tightening process of the first tightening assembly 5, the pressing galvanized steel plate 3 is also pressed through the synergistic effect of the connecting rod 204 and the threaded rod 205, further enhancing the sealing performance and stability of the tunnel anti-seepage plugging structure.

[0032] As Figures 5 to 6 shown, the steel plate pressing frame 4 includes a square frame 401. The square frame 401 is fixedly connected to the four sides of the pressing galvanized steel plate 3. Elastic connecting plates 402 are respectively fixedly connected to the positions of the two top corners on both sides of the square frame 401. A plurality of elastic connecting plates 402 are fixedly connected to the ends away from the square frame 401 with mounting bumps 404. The plurality of mounting bumps 404 are respectively slidably meshed with the connecting grooves 504.

[0033] As Figures 5 to 6 shown, two middle pressing frames 403 are fixedly connected to the middle of the square frame 401. The two middle pressing frames 403 are arranged vertically. One side of the two middle pressing frames 403 is fixedly connected to the surface of the pressing galvanized steel plate 3. The two middle pressing frames 403 have a W-shaped structure. A pressing convex plate 405 is commonly fixedly connected to the side of the two middle pressing frames 403 away from the pressing galvanized steel plate 3 in the middle.

[0034] like Figures 5 to 7 As shown, the pressing protrusion 405 is fixedly connected to a fixing frame 406 on the side away from the middle pressing frame 403, and a pressing column 407 is slidably connected through the fixing frame 406 and the middle of the pressing protrusion 405. A limiting plate 408 is fixedly connected to the middle of the pressing column 407, and the limiting plate 408 is located between the fixing frame 406 and the pressing protrusion 405. A spring 409 is fixedly connected between the limiting plate 408 and the pressing protrusion 405, and the pressing column 407 is located on the inner side of the spring 409. The through end on one side of the pressing column 407 is slidably engaged with the matrix protrusion ring 505.

[0035] like Figures 8 to 10 As shown, the first tightening assembly 5 includes an I-shaped frame 501, transmission cabins 502 are fixedly connected on both sides of the I-shaped frame 501, and hand wheels 503 are rotatably connected in the middle of the two transmission cabins 502 respectively. Connecting grooves 504 are fixedly connected on both sides of the middle of the transmission cabin 502, and several connecting grooves 504 are slidingly engaged with the steel plate pressing frame 4 respectively. A matrix convex ring 505 is fixedly connected to the middle surface of the transmission cabin 502, and the matrix convex ring 505 is slidingly engaged with the middle of the steel plate pressing frame 4.

[0036] like Figure 11 As shown, one end of the two hand wheels 503 located inside the transmission cabin 502 is respectively fixedly connected with a transmission bevel gear 506, a coaxial rod 507 is fixedly connected in the middle between the two transmission bevel gears 506, and the middle part of the coaxial rod 507 is rotatably connected to the work-shaped frame 501, and the upper and lower ends of the two transmission bevel gears 506 are respectively meshed and transmission-connected with a driven bevel gear 508, and the driven bevel gear 508 is rotationally connected to the transmission cabin 502, and the driven bevel gear 508 is fixedly connected to a fixed-point transmission rod 509 at one end away from the transmission bevel gear 506, and the fixed-point transmission rod 509 is rotationally connected to the inside of the transmission cabin 502, and the fixed-point transmission rod 509 is fixedly connected to the first universal joint 510 at one end away from the driven bevel gear 508, and the telescopic transmission rod 511 is fixedly connected to the end of the first universal joint 510 away from the fixed-point transmission rod 509. The telescopic transmission rod 511 penetrates the surface of the work-type frame 501, and the penetrating end of the telescopic transmission rod 511 is fixedly connected with a second universal joint 512. The second universal joint 512 is transmission-connected to the second tightening assembly 6 at one end away from the telescopic transmission rod 511. In the specific implementation process, when it is necessary to adjust the tightening degree of the blocking structure, the operator can drive the transmission bevel gear 506 to rotate by turning the hand wheel 503 in the first tightening assembly 5. The rotation of the transmission bevel gear 506 drives the fixed-point transmission rod 509 to rotate through the transmission of the coaxial rod 507 and the driven bevel gear 508. The rotational power of the fixed-point transmission rod 509 is smoothly transmitted to the telescopic transmission rod 511 through the flexible rotation of the first universal joint 510. The telescopic transmission rod 511 is telescopic within a certain range to meet different work requirements.

[0037] likeFigures 12 to 14 As shown in the figure, the second tightening assembly 6 includes a connection box 601. The two sides of the connection box 601 are rotatably connected to the top of the I-shaped frame 501. An open notch 602 is provided in the middle of one side of the connection box 601. An opening internal hexagonal nut 603 is rotatably connected in the middle of the connection box 601. The opening of the opening internal hexagonal nut 603 corresponds to the open notch 602. A number of limiting protrusions 604 are fixedly connected to the inner sides of the upper and lower ends of the opening internal hexagonal nut 603 respectively. The inner side of the opening internal hexagonal nut 603 is meshed and fixed with the nut sleeve 206. The number of limiting protrusions 604 is in sliding fit with the surfaces of both ends of the nut sleeve 206. A ring gear 605 is fixedly connected to the outer side of the middle of the opening internal hexagonal nut 603. The ring gear 605 is rotatably connected through the inside of the connection box 601. Two transmission gears 606 are rotatably connected to both sides inside the connection box 601 respectively. The two transmission gears 606 are symmetrically arranged. The two transmission gears 606 are respectively meshed and driven with both sides of the ring gear 605. The middle parts of the two transmission gears 606 are rotatably connected through the connection box 601. The penetrating end of the transmission gear 606 is fixedly connected to the second universal joint 512. The power is transmitted to the second tightening assembly 6 through the second universal joint 512. After the transmission gear 606 in the second tightening assembly 6 receives the power, it rotates and drives the ring gear 605 to rotate synchronously. The rotation of the ring gear 605 further drives the opening internal hexagonal nut 603 to rotate. Since the inner side of the opening internal hexagonal nut 603 is meshed and fixed with the nut sleeve 206, and the nut sleeve 206 is connected to the threaded rod 205 on the fixed galvanized steel plate 2, the rotation of the opening internal hexagonal nut 603 will drive the nut sleeve 206 to move on the threaded rod 205, so as to realize the tightening or loosening operation of the second tightening assembly 6 on the fixed galvanized steel plate 2.

[0038] The working principle of this embodiment is as follows: In practical applications, the operator first uses the expansion rubber strip 1 to conduct a preliminary anti-seepage plugging of the tunnel. After the expansion rubber strip 1 encounters water, it will quickly expand, closely fit the tunnel wall, and form a first waterproof barrier. Subsequently, the operator installs the fixed galvanized steel plate 2 on the tunnel wall, and utilizes the structural characteristics of the micro-convex tenon and mortise 203 to initially fix the firm connection between the fixed galvanized steel plate 2 and the tunnel wall. Finally, the final fixation is carried out through the bolt fixing points 202. At the same time, the design of the rubber strip fixing groove 201 enables the expansion rubber strip 1 to be stably fixed on the fixed galvanized steel plate 2, further enhancing the waterproof effect.

[0039] Then, the operator installs the extruded galvanized steel plate 3 between the fixed galvanized steel plates 2 and makes it contact with the expansion rubber strip 1. Subsequently, the steel plate pressing frame 4 is attached to the extruded galvanized steel plate 3. After that, the first tightening assembly 5 and the second tightening assembly 6 are installed. The nut sleeve 206 on the threaded rod 205 is clamped into the opening internal hexagonal nut 603 to connect the fixed galvanized steel plate 2 and the second tightening assembly 6.

[0040] The extruded galvanized steel plate 3 is fixed and pressed by the steel plate pressing frame 4. The square frame 401 of the steel plate pressing frame 4 is fixedly connected to the four sides of the extruded galvanized steel plate 3, realizing the connection between the steel plate pressing frame 4 and the first tightening assembly 5, ensuring the uniform transmission of pressure. The elastic connecting plate 402 provides the necessary elastic buffer, enabling the steel plate pressing frame 4 to adapt to the unevenness of the tunnel wall and ensuring long-term waterproof performance.

[0041] During the installation and adjustment process, the operator drives the driving bevel gear 506 to rotate by turning the handwheel 503. The driving bevel gear 506 transmits the power to the fixed-point transmission rod 509 through the transmission of the coaxial rod 507 and the driven bevel gear 508. The fixed-point transmission rod 509 then transmits the power to the second universal joint 512 through the transmission of the first universal joint 510 and the telescopic transmission rod 511, finally driving the second tightening assembly 6 to rotate and tighten.

[0042] During the tightening process of the second tightening assembly 6, the strokes of the connecting rod 204 and the threaded rod 205 gradually shorten, causing the first tightening assembly 5 to approach the extruded galvanized steel plate 3. At the same time, the installation protrusion 404 in the steel plate pressing frame 4 slides and meshes in the connection groove 504, ensuring the stability and installation convenience of the steel plate pressing frame 4. The W-shaped structure design of the middle pressing frame 403 and the setting of the pressing convex plate 405 further enhance the pressing force of the pressing frame on the steel plate, improving the sealing and stability of the plugging structure.

[0043] In addition, the design of the pressing column 407 and the spring 409 on the pressing convex plate 405 realizes the stable pressing of the pressing convex plate 405, improving the pressing accuracy and stability. During the pressing process, the elastic effect of the spring 409 enables the pressing column 407 to always maintain close sliding meshing with the matrix convex ring 505, avoiding the decline in waterproof performance caused by loosening during the pressing process.

[0044] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A tunnel anti-seepage plugging structure, including an expansion rubber strip (1), characterized in that: The two ends of the expansion rubber strip (1) are respectively fixedly connected to fixed galvanized steel plates (2), the expansion rubber strip (1) and the fixed galvanized steel plate (2) are bonded to the tunnel surface, the expansion rubber strip (1) is fixedly connected to an extruded galvanized steel plate (3) away from the bonding surface, the extruded galvanized steel plate (3) is fixedly connected to a steel plate pressing frame (4) on the side away from the expansion rubber strip (1), the middle of the steel plate pressing frame (4) is fixedly connected to a first tightening component (5), and the upper and lower ends of the first tightening component (5) are respectively rotatably connected to a second tightening component (6); The first tightening assembly (5) comprises a work frame (501), transmission cabins (502) are fixedly connected to both sides of the work frame (501), the middle parts of the two transmission cabins (502) are respectively rotatably connected to hand wheels (503), and the middle parts of the transmission cabins (502) are respectively fixedly connected to connecting grooves (504), and a plurality of the connecting grooves (504) are respectively slidably engaged with the steel plate pressing frames (4); A matrix convex ring (505) is fixedly connected to the middle surface of the transmission cabin (502), and the matrix convex ring (505) is slidably engaged with the middle of the steel plate pressing frame (4); The two second tightening components (6) are respectively meshed and rotatably connected with the two fixed galvanized steel plates (2).

2. The tunnel anti-seepage plugging structure according to claim 1, characterized in that, One end of the two hand wheels (503) located inside the transmission cabin (502) is respectively fixedly connected to a transmission bevel gear (506); a coaxial rod (507) is fixedly connected in the middle between the two transmission bevel gears (506); the middle of the coaxial rod (507) penetrates and is rotatably connected to the workpiece frame (501); upper and lower ends of the two transmission bevel gears (506) are respectively meshed and transmission-connected with driven bevel gears (508); the driven bevel gears (508) are rotatably connected to the transmission cabin (502); one end of the driven bevel gear (508) away from the transmission bevel gear (506) is fixedly connected to a fixed-point transmission rod (509); the fixed-point transmission rod (509) is rotatably connected to the inside of the transmission cabin (502).

3. A tunnel anti-seepage plugging structure according to claim 2, characterized in that, The fixed-point transmission rod (509) is fixedly connected to a first universal joint (510) at one end away from the driven bevel gear (508); the first universal joint (510) is fixedly connected to a telescopic transmission rod (511) at one end away from the fixed-point transmission rod (509); the telescopic transmission rod (511) penetrates the surface of the work-shaped frame (501); the through-end of the telescopic transmission rod (511) is fixedly connected to a second universal joint (512); the second universal joint (512) is transmission-connected to a second tightening assembly (6) at one end away from the telescopic transmission rod (511).

4. A tunnel anti-seepage plugging structure according to claim 1, characterized in that, The second tightening assembly (6) comprises a connection box (601), the two sides of the connection box (601) are rotatably connected to the top of the work frame (501), an open notch (602) is provided in the middle of one side of the connection box (601), an open hexagon socket nut (603) is rotatably connected in the middle of the connection box (601), the opening of the open hexagon socket nut (603) corresponds to the open notch (602), a plurality of limiting protrusions (604) are fixedly connected to the inner sides of the upper and lower ends of the open hexagon socket nut (603), the inner side of the open hexagon socket nut (603) is meshed and fixed with the nut sleeve (206), and the plurality of limiting protrusions (604) are fixedly connected to the nut sleeve (206). The surfaces of both ends of the female sleeve (206) are slidably fitted, and a ring gear (605) is fixedly connected to the outer side of the middle part of the open hexagonal nut (603), and the ring gear (605) is rotatably connected to the inside of the connection box (601). Transmission gears (606) are rotatably connected to the two sides of the connection box (601), and the two transmission gears (606) are symmetrically arranged. The two transmission gears (606) are respectively meshed and transmission-connected to the two sides of the ring gear (605), and the middle parts of the two transmission gears (606) are rotatably connected to the connection box (601), and the through ends of the transmission gears (606) are fixedly connected to the second universal joint (512).

5. A tunnel anti-seepage plugging structure according to claim 1, characterized in that, The fixed galvanized steel plate (2) has an arc-shaped structure, and a micro-convex tenon (203) is provided between the fixed galvanized steel plate (2) and the tunnel fitting surface, a rubber strip fixing groove (201) is provided on one side of the bottom end of the fixed galvanized steel plate (2), and the rubber strip fixing groove (201) is fixedly connected to the expansion rubber strip (1), and two bolt fixing points (202) are provided in the middle of the fixed galvanized steel plate (2).

6. The a tunnel anti-seepage plugging structure according to claim 1, characterized in that A connecting rod (204) is rotatably connected to the surface of the fixed galvanized steel plate (2) at one side away from the micro-convex tenon (203), and the connecting rod (204) is located between the two bolt fixing points (202). A threaded rod (205) is fixedly connected to one end of the connecting rod (204) away from the fixed galvanized steel plate (2), and a nut sleeve (206) is rotatably connected to the middle part of the threaded rod (205), and the nut sleeve (206) is meshed and rotatably connected to the second tightening component (6).

7. A tunnel anti-seepage plugging structure according to claim 1, characterized in that, The steel plate pressing frame (4) comprises a square frame (401), the square frame (401) being fixedly connected to the four sides of the extruded galvanized steel plate (3), two top corners on both sides of the square frame (401) being respectively fixedly connected to elastic connecting plates (402), a plurality of the elastic connecting plates (402) being fixedly connected to one end away from the square frame (401) with mounting protrusions (404), and a plurality of the mounting protrusions (404) being respectively slidably engaged with the connecting grooves (504).

8. A tunnel anti-seepage plugging structure according to claim 7, characterized in that, Two middle pressing frames (403) are fixedly connected to the middle of the square frame (401). The two middle pressing frames (403) are arranged vertically. One side of the two middle pressing frames (403) is fixedly connected to the surface of the extruded galvanized steel plate (3). The two middle pressing frames (403) are of W-shaped structure. A pressing convex plate (405) is fixedly connected to the side of the two middle pressing frames (403) far from the extruded galvanized steel plate (3).

9. A tunnel anti-seepage plugging structure according to claim 8, characterized in that, A fixing frame (406) is fixedly connected to the side of the pressing convex plate (405) far from the middle pressing frame (403). A pressing column (407) is slidably connected through the middle of the fixing frame (406) and the pressing convex plate (405). A limiting plate (408) is fixedly connected to the middle of the pressing column (407). The limiting plate (408) is located between the fixing frame (406) and the pressing convex plate (405). A spring (409) is fixedly connected between the limiting plate (408) and the pressing convex plate (405). The pressing column (407) is located inside the spring (409). One through end of the pressing column (407) is slidably engaged with the matrix convex ring (505).

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