Tunnel anti-seepage sealing structure

Abstract

The present invention discloses a tunnel anti-seepage sealing structure, which belongs to the technical field of tunnel protection. The tunnel anti-seepage sealing structure includes an expansion rubber strip, wherein both ends of the expansion rubber strip are respectively fixedly connected to a fixed galvanized steel plate, the expansion rubber strip is fixedly connected to an extruded galvanized steel plate away from the fitting surface, the extruded galvanized steel plate is fixedly connected to a steel plate pressing frame on the side away from the expansion rubber strip, the middle of the steel plate pressing frame is fixedly connected to a first tightening assembly, and the upper and lower ends of the first tightening assembly are respectively rotatably connected to a second tightening assembly. The present invention provides an expansion rubber strip, which expands when in use when exposed to water, thereby performing preliminary anti-seepage sealing on the tunnel. By providing a fixed galvanized steel plate and an extruded galvanized steel plate, the tunnel anti-seepage effect can be further enhanced. By using a galvanized steel plate waterstop with a micro-convex mortise and tenon joint and a water-expandable rubber strip as a time-sequential activation design, the two lines of defense work together without leakage, thereby reasonably saving the cost of the waterproofing project.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel protection, and in particular relates to a tunnel anti-seepage and water blocking structure. Background Art

[0002] Tunnel seepage is a common disease phenomenon in underground engineering. It refers to the phenomenon that groundwater invades the interior of the tunnel through cracks in the tunnel lining, construction joints or weak parts of the structure. Its causes are complex and are usually related to geological conditions, construction quality and structural aging. In karst development areas, water-rich fault zones or high water level areas, the penetration pressure of groundwater can easily break through the tunnel waterproof layer; if the waterproof material is not laid properly, the joints are not strictly handled or there are defects in the concrete pouring during construction, seepage channels will also be formed. Long-term leakage will not only accelerate the carbonization of concrete and the rust of steel bars, resulting in a decrease in structural bearing capacity, but may also cause safety hazards such as water accumulation in the roadbed and equipment short circuit.

[0003] Existing anti-seepage sealing structures mostly use cement mortar or concrete sealing mode. In some holes or joints that need to be sealed, cement mortar or concrete is poured and sealed, and its strength and density after hardening are used to prevent water seepage. However, during the coagulation and hardening process, the volume of cement mortar or concrete will shrink, and cracks or gaps are likely to occur at the connection with the surrounding structure, resulting in leakage in the sealed part. At the same time, this mode requires a 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 sealing quality will be affected. Summary of the Invention

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

[0005] The technical solution adopted to solve the above technical problems is: a tunnel anti-seepage sealing structure, including an expansion rubber strip, both ends of the expansion rubber strip are fixedly connected to fixed galvanized steel plates, the expansion rubber strip and the fixed galvanized steel plate are fitted with the tunnel surface, the expansion rubber strip is fixedly connected to an extruded galvanized steel plate away from the fitting surface, the extruded galvanized steel plate is fixedly connected to a steel plate pressing frame on the side away from the expansion rubber strip, a first tightening assembly is fixedly connected to the middle of the steel plate pressing frame, the upper and lower ends of the first tightening assembly are respectively rotatably connected to the second tightening assembly, and the two second tightening assemblies are respectively engaged and rotatably connected with two fixed galvanized steel plates.

[0006] Furthermore, the first tightening assembly includes an I-shaped frame, transmission cabins are fixedly connected on both sides of the I-shaped frame, hand wheels are rotatably connected in the middle of the two transmission cabins, connecting grooves are fixedly connected on both sides of the middle of the transmission cabin, and several connecting grooves are slidingly engaged with the steel plate pressing frame respectively, and a matrix convex ring is fixedly connected to the middle surface of the transmission cabin, and the matrix convex ring is slidingly engaged with the middle 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 offsetting or shaking during the tightening process, so that when the tunnel anti-seepage sealing structure is in use, the degree of pressure of the steel plate pressing frame on the tunnel surface can be easily adjusted by adjusting the handwheel, thereby realizing precise control of the tunnel anti-seepage sealing effect.

[0008] Furthermore, one end of the two handwheels located inside the transmission cabin is respectively fixedly connected to 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 to the workpiece frame, and the upper and lower ends of the two transmission bevel gears are respectively meshed and connected to driven bevel gears, the driven bevel gear is rotatably connected to the transmission cabin, and the driven bevel gear is fixedly connected to 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 the other transmission bevel gear through the coaxial rod, thereby realizing 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 work-type 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, further enhancing the flexibility and stability of the transmission. Finally, the second universal joint transmits 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 work-type frame, an open notch is provided in the middle of one side of the connecting box, and an open inner hexagonal nut is rotatably connected in the middle of the connecting box, the opening of the open inner hexagonal nut corresponds to the open notch, and a number of limiting protrusions are fixedly connected to the inner sides of the upper and lower ends of the open inner hexagonal nut, the inner side of the open inner hexagonal nut is meshed and fixed with the nut sleeve, and a number of the limiting protrusions are slidingly fitted with the surfaces of the two ends of the nut sleeve, and the outer side of the middle of the open inner hexagonal nut is fixedly connected to a ring gear, and the ring gear is rotatably connected to the inside of the connecting box, and the two sides of the connecting box are rotatably connected, and the two transmission gears are symmetrically arranged, and the two transmission gears are respectively meshed and transmitted with the two sides of the ring gear, the middle of the two transmission gears are rotatably connected to the connecting box, and the through end of the transmission gear is fixedly connected to the second universal joint.

[0013] Through the above technical solution, 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 engaged and connected with the two sides of the annular gear, the annular gear will rotate synchronously. The rotation of the annular gear further drives the open hexagonal nut to rotate. The inner side of the open hexagonal nut is engaged and fixed with the nut sleeve, and the nut sleeve is connected to the threaded rod on the fixed 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 offsetting or shaking during 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 is provided on the fixed galvanized steel plate and the tunnel fitting surface, and a rubber strip fixing groove is provided on one side of the bottom end of the fixed galvanized steel plate, and 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 structural design of the fixed galvanized steel plate can better adapt to the curved shape of the tunnel, ensuring a close fit between it and the tunnel wall, thereby improving the anti-water seepage effect. The setting of the micro-convex mortise and tenon increases the friction between the fixed galvanized steel plate and the tunnel wall, further enhancing the stability and sealing of the connection. The fixed connection between the rubber strip fixing groove and the expansion rubber strip forms an additional waterproof barrier, effectively preventing water penetration. At the same time, the setting of two bolt fixing points provides a more solid support for the fixed galvanized steel plate, making the entire sealing structure more stable and reliable. Through the above technical solution, the tunnel anti-water seepage sealing structure has demonstrated excellent sealing and durability when dealing with tunnel water seepage problems, providing a strong guarantee for the long-term safe operation of the tunnel.

[0016] Furthermore, the fixed galvanized steel plate is rotatably connected to the surface of the side away from the micro-convex mortise and tenon, and the connecting rod is located between two bolt fixing points. The connecting rod is fixedly connected to a threaded rod at one end away from the fixed galvanized steel plate, and the middle part of the threaded rod is threadedly rotatably connected to a nut sleeve, and the nut sleeve is engaged 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 rod and the nut sleeve are threadedly rotated to connect, so that the second tightening assembly can adjust the position of the nut sleeve to achieve mutual tightening of the two fixed galvanized steel plates. 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, so that the first tightening assembly approaches the extruded galvanized steel plate. Through the cooperation of the two, the fit and sealing between it and 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 extruded galvanized steel plate, and elastic connecting plates are fixedly connected to the two top corners on both sides of the square frame. Several of the elastic connecting plates are fixedly connected to one end away from the square frame with mounting protrusions, and several of the mounting protrusions are respectively slidably engaged with the connecting grooves.

[0019] Through the above technical solution, the design of the steel plate pressing frame further improves the stability and installation convenience of the sealing 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 pressure to the galvanized steel plate, thereby enhancing the fit between the steel plate and the tunnel wall. The elastic connecting plates at the two top corners on both sides of the square frame not only provide the necessary elastic buffer, so that the steel plate pressing frame can 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 to avoid the degradation of waterproof performance due to slight deformation inside the tunnel. The sliding engagement design of several mounting protrusions and connecting grooves makes the installation and adjustment of the steel plate pressing frame easier and faster, while also improving the stability and durability of the structure. It not only simplifies the installation process and reduces the construction difficulty, but also helps to improve the overall waterproof effect of the sealing structure and ensure the safety and stability inside the tunnel.

[0020] Furthermore, two middle pressing frames are fixedly connected to the middle of the square frame, and the two middle pressing frames are arranged up and down. 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 W-shaped structures, and the middle of the two middle pressing frames away from the side of the extruded galvanized steel plate are jointly fixedly connected with a pressing protrusion.

[0021] Through the above technical solution, the surface of the galvanized steel plate can be more comprehensively adhered and pressed, especially in the middle area, effectively preventing the risk of leakage caused by insufficient compression in the middle 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 compression 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 sealing structure, which not only improves the overall performance of the sealing structure, but also helps to extend its service life and reduce maintenance costs.

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

[0023] Through the above technical solution, stable pressing of the pressing convex plate is achieved, and the pressing accuracy and stability are improved. During the pressing process, the elastic action of the spring can enable the pressing column to always maintain a tight sliding engagement with the matrix convex ring, avoiding the degradation of waterproof performance due to loosening during the pressing process. At the same time, the design of the limit plate limits the movement range of the pressing column, preventing excessive or insufficient pressing, and further improving the reliability and stability of the waterproof sealing structure.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The present invention provides an expansion rubber strip. When in use, the expansion rubber strip expands when it comes into contact with water, thereby performing preliminary anti-water seepage sealing for the tunnel. By providing a fixed galvanized steel plate and an extruded galvanized steel plate, the anti-water seepage effect of the tunnel can be further enhanced. The two lines of defense work together to prevent leakage. The design of the micro-convex mortise and tenon joint of the galvanized steel plate waterstop and the time-sequential activation of the water-expanding rubber strip and the coordinated defense strategy of the rigid-flexible special-shaped nodes can reasonably save the cost of the waterproofing project.

[0026] 2. The present invention drives the transmission bevel gear to rotate by rotating the handwheel, and through a series of transmission structures, drives the second tightening assembly to rotate and tighten, thereby fixing the galvanized steel plates closer to each other. At the same time, during the tightening process of the second tightening assembly, the stroke of the connecting rod and the threaded rod is shortened, and the first tightening assembly approaches the extruded galvanized steel plate to press the surface of the expansion strip, further enhancing the sealing and stability of the tunnel anti-seepage sealing structure, making the adjustment and tightening operations of the entire sealing structure more flexible and quick, and greatly improving the construction efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a first schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a second schematic diagram of the overall structure of the present invention;

[0029] Figure 3 This is a first schematic diagram of the fixed galvanized steel plate structure of the present invention;

[0030] Figure 4 is a second schematic diagram of the fixed galvanized steel plate structure of the present invention;

[0031] Figure 5 It is a three-dimensional schematic diagram of the tightening structure of the present invention;

[0032] Figure 6 This is a first schematic diagram of the steel plate pressing frame structure of the present invention;

[0033] Figure 7 This is a second schematic diagram of the steel plate pressing frame structure of the present invention;

[0034] Figure 8 is a first schematic diagram of the first tightening assembly structure of the present invention;

[0035] Figure 9 is a second schematic diagram of the first tightening assembly structure of the present invention;

[0036] Figure 10 It is a schematic diagram of the structure of the workpiece frame of the present invention;

[0037] Figure 11 It is a schematic cross-sectional view of the internal structure of the transmission cabin of the present invention;

[0038] Figure 12 It is a three-dimensional schematic diagram of the overall structure of the second tightening assembly of the present invention;

[0039] Figure 13 is a schematic cross-sectional view of the internal structure of the second tightening assembly of the present invention;

[0040] Figure 14 It is a schematic cross-sectional view of the internal structure of the first tightening assembly of the present invention.

[0041] Figure numerals: 1, expansion strip; 2, fixed galvanized steel plate; 201, strip fixing groove; 202, bolt fixing point; 203, micro-convex mortise and tenon; 204, connecting rod; 205, threaded rod; 206, nut sleeve; 3, extruded galvanized steel plate; 4, steel plate pressing frame; 401, square frame; 402, elastic connecting plate; 403, middle pressing frame; 404, mounting protrusion; 405, pressing protruding plate; 406, fixing frame; 407, pressing column; 408, limit plate; 409, spring; 5, first tightening group Parts; 501, workpiece 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, open hexagonal nut; 604, limiting protrusion; 605, ring gear; 606, transmission gear. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, 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 intended to limit the present invention.

[0043] like Figures 1 to 14As shown, a tunnel anti-seepage sealing structure of the present embodiment includes an expansion rubber strip 1, both ends of the expansion rubber strip 1 are fixedly connected to a fixed galvanized steel plate 2, the expansion rubber strip 1 and the fixed galvanized steel plate 2 are fitted with the tunnel surface, the expansion rubber strip 1 is fixedly connected to an extruded galvanized steel plate 3 away from the fitting surface, the extruded galvanized steel plate 3 is fixedly connected to a steel plate pressing frame 4 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, the upper and lower ends of the first tightening component 5 are respectively rotatably connected to the second tightening components 6, the two second tightening components 6 are respectively engaged and rotatably connected with the two fixed galvanized steel plates 2, through the coordinated action of the first tightening component 5 and the second tightening component 6, the effective tightening of the fixed galvanized steel plate 2 and the extruded galvanized steel plate 3 is achieved, thereby enhancing the sealing and stability of the tunnel anti-seepage sealing structure.

[0044] like Figures 3 and 4 As shown, the fixed galvanized steel plate 2 has an arc-shaped structure, and a micro-convex mortise and tenon 203 is provided on the fixed galvanized steel plate 2 and the tunnel fitting surface, and a rubber strip fixing groove 201 is provided on one side of 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, and two bolt fixing points 202 are provided in the middle of the fixed galvanized steel plate 2.

[0045] like Figure 4 As shown, the surface of the fixed galvanized steel plate 2 away from the micro-convex mortise and tenon 203 is rotatably connected with a connecting rod 204, and the connecting rod 204 is located between the two bolt fixing points 202. The connecting rod 204 is fixedly connected to the end of the fixed galvanized steel plate 2 away from the fixed galvanized steel plate 2 with a threaded rod 205. The middle part of the threaded rod 205 is threadedly rotatably connected with a nut sleeve 206, and the nut sleeve 206 is engaged and rotatably connected with the second tightening component 6. During the tightening process, the first tightening component 5 will also press the extruded galvanized steel plate 3 through the coordinated action of the connecting rod 204 and the threaded rod 205, thereby further enhancing the sealing and stability of the tunnel anti-seepage sealing structure.

[0046] like Figures 5 and 6 As shown, the steel plate pressing frame 4 includes a square frame 401, which is fixedly connected to the four sides of the extruded galvanized steel plate 3, and elastic connecting plates 402 are fixedly connected to the two top corners on both sides of the square frame 401. Several elastic connecting plates 402 are fixedly connected to one end away from the square frame 401 with mounting protrusions 404, and several mounting protrusions 404 are respectively slidably engaged with the connecting grooves 504.

[0047] like Figures 5 and 6 As 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 up and down. 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 W-shaped structures. The middle part of the two middle pressing frames 403 away from the side of the extruded galvanized steel plate 3 is jointly fixedly connected with a pressing protrusion 405.

[0048] 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. The middle of the pressing column 407 is fixedly connected to a limiting plate 408, 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.

[0049] like Figures 8 to 10 As shown, the first tightening assembly 5 includes an I-shaped frame 501, and transmission cabins 502 are fixedly connected on both sides of the I-shaped frame 501. Hand wheels 503 are rotatably connected in the middle of the two transmission cabins 502. Connecting grooves 504 are fixedly connected on both sides of the middle of the transmission cabin 502. 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.

[0050] like Figure 11 As shown, 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, and the middle of the coaxial rod 507 is rotatably connected to the work 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 first universal joint 510 is fixedly connected to the 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-type frame 501, and the penetrating end of the telescopic transmission rod 511 is fixedly connected to the 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. During 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 handwheel 503 in the first tightening assembly 5. The rotation of the transmission bevel gear 506 is then driven by the coaxial rod 507 and the driven bevel gear 508 to drive the fixed-point transmission rod 509 to rotate. 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 and retractable within a certain range to meet different work requirements.

[0051] like Figures 12 to 14 As shown, the second tightening assembly 6 includes a connecting box 601, and both sides of the connecting 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 connecting box 601. An open inner hexagonal nut 603 is rotatably connected in the middle of the connecting box 601. The opening of the open inner 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 open inner hexagonal nut 603. The inner side of the open inner hexagonal nut 603 is meshed and fixed with the nut sleeve 206. A number of limiting protrusions 604 are slidably fitted with the surfaces of the two ends of the nut sleeve 206. A ring gear 605 is fixedly connected to the outer side of the middle of the open inner hexagonal nut 603. The ring gear 605 is rotatably connected to the inside of the connecting box 601. The two sides of the interior of the connecting box 601 are rotatably connected with transmission gears 606. The two transmission gears 606 are symmetrically arranged. 606 are respectively engaged with the two sides of the annular gear 605 for transmission connection. The middle parts of the two transmission gears 606 are connected to the connecting box 601 for rotation. The through ends of the transmission gears 606 are fixedly connected to the second universal joint 512, and the power is transmitted to the second tightening assembly 6 through the second universal joint 512. After receiving the power, the transmission gear 606 in the second tightening assembly 6 rotates and drives the annular gear 605 to rotate synchronously. The rotation of the annular gear 605 further drives the open hexagonal nut 603 to rotate. Since the inner side of the open hexagonal nut 603 is engaged 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 open hexagonal nut 603 will drive the nut sleeve 206 to move on the threaded rod 205, thereby realizing the tightening or loosening operation of the second tightening assembly 6 on the fixed galvanized steel plate 2.

[0052] The working principle of this embodiment is as follows:

[0053] In actual application, the operator first uses the expansion strip 1 to perform preliminary anti-seepage sealing on the tunnel. The expansion strip 1 will expand rapidly when it comes into contact with water, fit tightly to the tunnel wall, and form the first waterproof barrier. Then, the operator installs the fixed galvanized steel plate 2 on the tunnel wall, and uses the structural characteristics of the micro-convex mortise and tenon 203 to preliminarily fix the firm connection between the galvanized steel plate 2 and the tunnel wall. Finally, the final fixation is performed through the bolt fixing point 202. At the same time, the design of the strip fixing groove 201 enables the expansion strip 1 to be stably fixed on the fixed galvanized steel plate 2, further enhancing the waterproof effect.

[0054] Next, the operator installs the extruded galvanized steel plate 3 between the fixed galvanized steel plates 2 and contacts it with the expansion strip 1. Then, the steel plate pressing frame 4 fits 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 inserted into the open hexagonal nut 603 to connect the fixed galvanized steel plate 2 with the second tightening assembly 6.

[0055] The extruded galvanized steel plate 3 is fixed and compressed 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 to realize the connection between the steel plate pressing frame 4 and the first tightening component 5, ensuring the uniform transmission of pressure, and the elastic connecting plate 402 provides the necessary elastic buffer, so that the steel plate pressing frame 4 can adapt to the unevenness of the tunnel wall and ensure long-term waterproof performance.

[0056] During the installation and adjustment process, the operator rotates the handwheel 503 to drive the transmission bevel gear 506 to rotate. The transmission bevel gear 506 transmits power to the fixed-point transmission rod 509 through the coaxial rod 507 and the driven bevel gear 508. The fixed-point transmission rod 509 then transmits power to the second universal joint 512 through the first universal joint 510 and the telescopic transmission rod 511, and finally drives the second tightening assembly 6 to rotate and tighten.

[0057] During the tightening process of the second tightening assembly 6, the stroke of the connecting rod 204 and the threaded rod 205 is gradually shortened, so that the first tightening assembly 5 approaches the extruded galvanized steel plate 3. At the same time, the mounting protrusion 404 in the steel plate pressing frame 4 slides and engages in the connecting 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 protrusion 405 further enhance the pressing force of the pressing frame on the steel plate, thereby improving the sealing and stability of the sealing structure.

[0058] In addition, the design of the pressing column 407 and the spring 409 on the pressing protrusion 405 achieves stable pressing of the pressing protrusion 405, improves the accuracy and stability of the pressing, and during the pressing process, the elastic action of the spring 409 enables the pressing column 407 to always maintain a tight sliding engagement with the matrix protrusion ring 505, avoiding the degradation of waterproof performance due to loosening during the pressing process.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A tunnel anti-seepage sealing structure, comprising an expansion rubber strip (1), characterized in that: The two ends of the expansion rubber strip (1) are respectively fixedly connected to the fixed galvanized steel plate (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 the extruded galvanized steel plate (3) away from the bonding surface, the extruded galvanized steel plate (3) is fixedly connected to the 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 the first tightening component (5), and the upper and lower ends of the first tightening component (5) are respectively rotatably connected to the 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 rotatably connected to hand wheels (503), and the middle parts of the transmission cabins (502) are fixedly connected to connecting grooves (504), and a plurality of the connecting grooves (504) are respectively slidably engaged with the steel plate pressing frame (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 assemblies (6) are respectively engaged and rotatably connected with the two fixed galvanized steel plates (2); 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) is connected to the work frame (501) for rotation, the upper and lower ends of the two transmission bevel gears (506) are respectively meshed and connected to a driven bevel gear (508), the driven bevel gear (508) is rotationally connected to the transmission cabin (502), and the end of the driven bevel gear (508) away from the transmission bevel gear (506) is fixedly connected to a fixed-point transmission rod (509), and the fixed-point transmission rod (509) is rotationally connected to the inside of the transmission cabin (502); 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-type frame (501); the penetrating 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); The second tightening assembly (6) includes a connecting box (601), both sides of the connecting 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 connecting box (601), an open hexagonal nut (603) is rotatably connected in the middle of the connecting box (601), the opening of the open hexagonal nut (603) corresponds to the open notch (602), and a plurality of limiting protrusions (604) are fixedly connected to the inner sides of the upper and lower ends of the open hexagonal nut (603), the inner side of the open hexagonal nut (603) is engaged and fixed with the nut sleeve (206), and the plurality of limiting protrusions (604) are fixed 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 of the open hexagonal nut (603), and the ring gear (605) is rotatably connected to the inside of the connecting box (601). The two sides of the inside of the connecting box (601) are rotatably connected with transmission gears (606), and the two transmission gears (606) are symmetrically arranged. The two transmission gears (606) are respectively meshed and transmission-connected with the two sides of the ring gear (605), and the middle parts of the two transmission gears (606) are rotatably connected to the connecting box (601), and the through ends of the transmission gears (606) are fixedly connected to the second universal joint (512); A connecting rod (204) is rotatably connected to the surface of one side of the fixed galvanized steel plate (2), and a threaded rod (205) is fixedly connected to one end of the connecting rod (204) away from the fixed galvanized steel plate (2). A nut sleeve (206) is rotatably connected to the middle portion of the threaded rod (205), and the nut sleeve (206) is engaged and rotatably connected to the second tightening assembly (6).

2. A tunnel anti-seepage blocking structure according to claim 1, characterized in that: The fixed galvanized steel plate (2) has an arc-shaped structure, and a micro-convex mortise and tenon (203) is provided between the fixed galvanized steel plate (2) and the tunnel fitting surface, and 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), and the connecting rod (204) is located between the two bolt fixing points (202).

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

4. The tunnel anti-seepage blocking structure according to claim 3, characterized in that: Two central pressing frames (403) are fixedly connected to the middle of the square frame (401), the two central pressing frames (403) are arranged up and down, one side of the two central pressing frames (403) is fixedly connected to the surface of the extruded galvanized steel plate (3), the two central pressing frames (403) are W-shaped structures, and the central side of the two central pressing frames (403) away from the extruded galvanized steel plate (3) is fixedly connected to a pressing convex plate (405).

5. The tunnel anti-seepage blocking structure according to claim 4, characterized in that: The pressing convex plate (405) is fixedly connected to a fixing frame (406) on one side away from the middle pressing frame (403), and a pressing column (407) is slidably connected to the middle of the fixing frame (406) and the pressing convex plate (405). The middle of the pressing column (407) is fixedly connected to a limiting plate (408), and 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), and the pressing column (407) is located inside the spring (409). The through end of one side of the pressing column (407) is slidably engaged with the matrix convex ring (505).

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