Fabricated concrete member splicing joint sealing anti-seepage structure and construction method

Abstract

The invention relates to the technical field of seepage prevention of splicing joints of concrete members, in particular to a sealing and seepage-preventing structure for splicing joints of fabricated concrete members and a construction method. According to the technical scheme, the structure comprises a pair of assembled and connected concrete member plates and a splicing seam formed after assembly. The concrete member plate, the first rubber base plate, the second rubber base plate, the tensioning mechanism, the clamping mechanism and other structures are matched, the first rubber base plate is attached to the splicing seam, and the second rubber base plate is clamped into the locking groove for preliminary positioning; and then the clamping block is installed, the clamping plate is embedded into the clamping groove, and it is ensured that the hexagon bolt is sleeved with the spiral sleeve block in the clamping block. Then the spiral sleeve block is rotated to drive the clamping plate to pull the component plate to get close, and preliminary fastening is completed; bolts in the clamping blocks are tightened to compact the rubber cushion plate to reinforce sealing, finally, the component plate is secondarily fastened, and the cover plate is installed for protection. And rubber elastic sealing and fastening cooperation of the tensioning mechanism and the clamping mechanism improve the impermeability, the device is detachable and convenient to overhaul, and tedious construction, high cost and difficulty in later maintenance are avoided.

Description

Technical Field

[0001] This invention relates to the field of waterproofing technology for splicing joints of concrete components, and particularly to a sealing and waterproofing structure and construction method for splicing joints of prefabricated concrete components. Background Technology

[0002] In the field of prefabricated building technology, concrete slab components are commonly used slab-shaped concrete structural parts in construction projects. These components can be prefabricated in standardized factories, and their overall structure is suitable for hoisting and splicing construction. They can be directly transported to the site for prefabricated installation, making them suitable for prefabricated installation methods. The seepage prevention performance of the splicing joints of concrete slab components directly affects the overall quality and service life of the building. Therefore, specialized seepage prevention and sealing structures must be installed at the splicing joints to mitigate the risk of leakage. Due to its excellent sealing and bonding properties, sealant has become a core functional material in existing seepage prevention and sealing structures.

[0003] However, in practical applications, it has been found that seepage-proof structures composed of a single sealant are prone to cracking and detachment due to factors such as deformation of concrete slab components and alternating environmental temperature and humidity, making it difficult to guarantee a long-term stable seepage-proof effect. Therefore, existing technologies generally adopt composite seepage-proof sealing solutions, specifically including combinations of "sealant and backing material," "sealant and waterproof membrane," and "sealant and structural waterproofing," aiming to improve the seepage-proof reliability of joints through multiple layers of protection.

[0004] However, the above-mentioned composite solutions still have significant drawbacks: on the one hand, the combination of multiple materials leads to complicated construction procedures, prolongs the construction period, and increases construction costs; on the other hand, the seepage prevention structure formed by this type of solution is an integrated solidified structure, which is difficult to disassemble later. If local leakage or damage occurs, inspection and repair require large-scale stripping of the original structure, further increasing maintenance costs and making it difficult to meet the actual needs of efficient construction and convenient operation and maintenance of prefabricated buildings. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the background art by proposing a sealing and seepage-proof structure and construction method for the splicing joints of prefabricated concrete components.

[0006] On one hand, this application provides a sealing and seepage-proof structure for the splicing joint of prefabricated concrete components, including a pair of assembled and connected concrete component plates and a splicing joint formed after assembly: a locking groove, which is formed on the concrete component plate and communicates with the splicing joint; a first rubber pad is provided inside the splicing joint; a second rubber pad is fixedly connected to the first rubber pad and inserted into the locking groove; a tensioning mechanism is installed on the first rubber pad to make the second rubber pad tightly abut against the locking groove; the concrete component plate and the first rubber pad are also provided with a clamping mechanism, which is used to make both concrete component plates move towards the first rubber pad and abut against it.

[0007] Optionally, the tensioning mechanism includes multiple linearly arranged and equally spaced mounting slots on the first rubber pad. A locking block is movably connected inside the mounting slot. Multiple second locking slots that lock the two ends of the locking block are provided on the concrete component plate. A bolt is provided inside the locking block. A second screw hole is provided inside the mounting slot. A metal threaded ring is embedded inside the second screw hole. One end of the bolt moves through the locking block and is threadedly connected to the metal threaded ring in the second screw hole.

[0008] Optionally, the clamping mechanism includes a first slot formed on the concrete component slab and communicating with the corresponding second slot. Each first slot is movably connected to a clamping plate. Each clamping plate is provided with a plurality of hexagonal bolts corresponding to the second slot. One end of each hexagonal bolt movably passes through the clamping plate. Both ends of the clamping block are provided with positioning grooves for the end of the clamping plate to movably pass through. The clamping block is provided with a pair of spiral sleeves that are spirally sleeved with the ends of the hexagonal bolts.

[0009] Optionally, the outer wall of the spiral sleeve block is provided with multiple tension grooves arranged in a circumferential array.

[0010] Optionally, the card plate is provided with a plurality of hexagonal grooves arranged in a linear pattern, the hexagonal grooves being used for the hexagonal ends of the hexagonal bolts to be inserted.

[0011] Optionally, each of the card blocks is provided with a pair of first screw holes, and the inside of the mounting groove is provided with a cover plate that can be inserted into a second slot. The cover plate is provided with a pair of internal hexagon bolts, one end of each of the internal hexagon bolts being movably inserted through the cover plate and then spirally connected to the first screw hole.

[0012] Optionally, the first and second rubber pads are provided with a metal frame inside, and the metal frame is set in an integral T-shaped structure.

[0013] Optionally, both the first screw holes and the positioning grooves are symmetrically arranged with the axis of the corresponding bolt as the center.

[0014] On the other hand, this application provides a construction method for a prefabricated concrete component splice joint sealing and seepage prevention structure, applied to a prefabricated concrete component splice joint sealing and seepage prevention structure as described above, including the following steps:

[0015] S1. First, attach the first rubber pad to the splice seam, insert the second rubber pad into the locking groove, then insert the clamping block into the installation groove, and insert the clamping plate into the first clamping groove, so that the end of the hexagonal bolt passes through the positioning groove and is screwed into the spiral sleeve block to complete the initial positioning.

[0016] S2. Insert the rod-shaped tool into the tensioning groove and rotate the spiral sleeve block. Pull the hex bolt to move the clamping plate and concrete component plate to stick to the first rubber pad to complete the clamping pre-fixing.

[0017] S3. Next, tighten the bolts inside the clip to make it spirally engage with the metal threaded ring in the second screw hole, thereby driving the rubber pad to press the locking groove for sealing and completing the enhanced seal.

[0018] S4. Then rotate the spiral sleeve block again to further clamp the rubber pad with the concrete component plate, and use the second rubber pad to elastically adjust and seal the splice joint to complete the secondary fastening.

[0019] S5. Finally, place the cover plate into the mounting slot and the second slot, and use an internal hex bolt to thread the cover plate through the first screw hole and screw it in to complete the protective sealing.

[0020] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0021] This invention utilizes a combination of a concrete component slab, a first rubber pad, a second rubber pad, a tensioning mechanism, and a clamping mechanism. When using this sealing and seepage-proof structure, the first rubber pad is first fitted against the joint, and the second rubber pad is inserted into the locking groove for initial positioning. Next, the locking block is installed, and the locking plate is embedded into the locking groove, ensuring that the hexagonal bolts engage with the spiral sleeve inside the locking block. Then, rotating the spiral sleeve causes the locking plate to pull the component slab closer together, completing the initial tightening. Tightening the bolts inside the locking block compacts the rubber pad to strengthen the seal. Finally, the component slab is tightened a second time, and a cover plate is installed for protection. Ultimately, the seepage-proof performance is improved through the synergistic effect of the rubber elastic seal and the tightening and clamping mechanisms. The structure is detachable for easy maintenance, avoiding cumbersome construction, high costs, and difficult subsequent maintenance. Attached Figure Description

[0022] Figure 1 A schematic diagram of a sealing and seepage-proof structure for splicing joints of prefabricated concrete components;

[0023] Figure 2 for Figure 1 A schematic diagram of the split structure;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 for Figure 2 A schematic diagram of the split structure;

[0026] Figure 5 for Figure 4 A schematic diagram of the split structure;

[0027] Figure 6 for Figure 5 Enlarged diagram of point B in the middle.

[0028] Reference numerals: 1. Concrete component slab; 11. Joint; 12. First slot; 13. Second slot; 14. Locking groove; 2. First rubber pad; 21. Second rubber pad; 22. Mounting groove; 23. Locking block; 24. Positioning groove; 25. First screw hole; 26. Bolt; 27. Second screw hole; 3. Locking plate; 31. Hexagonal groove; 32. Hex bolt; 33. Spiral sleeve block; 34. Tightening groove; 4. Cover plate; 41. Internal hex bolt. Detailed Implementation

[0029] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0030] Example

[0031] like Figures 1 to 6As shown, the present invention proposes a prefabricated concrete component splicing joint sealing and seepage prevention structure, including a pair of assembled concrete component plates 1 and a splicing joint 11 formed after assembly. A locking groove 14 communicating with the splicing joint 11 is provided on the concrete component plate 1. The locking groove 14 allows a second rubber pad 21 to be inserted, and the tight fit with the second rubber pad 21 enhances the sealing and seepage prevention effect of the splicing joint. A first rubber pad 2 is provided inside the splicing joint 11. The first rubber pad 2 serves as the main elastic sealing component, working with the second rubber pad 21 to block seepage channels, and also provides an installation carrier for the tensioning and clamping mechanisms. The second rubber pad 21, which is inserted into the locking groove 14, is fixedly connected to the first rubber pad 2. The second rubber pad 21 strengthens the sealing effect through tight contact with the locking groove 14, and achieves positional sealing through its own elasticity, improving the seepage prevention reliability of the splicing joint 11. The first rubber pad 2 and the second rubber pad 21 have internal metal frames that completely enclose them. The thickness of the first and second rubber pads 2 and 21 is uniformly distributed outside the metal frame. The metal frame is made of 304 stainless steel. The function of the metal frame is twofold: firstly, to provide rigid support for the first and second rubber pads 2 and 21, enhancing their structural strength and shape stability, and preventing excessive deformation or damage during assembly and fastening; secondly, through an integrated T-shaped structure, to make the connection between the first and second rubber pads 2 and 21 more secure, ensuring a coordinated sealing effect, and improving the fitting accuracy between the first rubber pad 2 and the splice seam 11, and between the second rubber pad 21 and the locking groove 14, further strengthening the anti-seepage reliability of the splicing joint. The metal frame is an integrated T-shaped structure. This sealing and anti-seepage structure is used for splicing joints of prefabricated concrete slab components. This structure utilizes the elastic sealing of rubber pads and the tightening and clamping mechanisms for a more stable seepage prevention effect; the construction process is simple, requiring no complex combination of multiple materials; the structure is detachable, eliminating the need for large-area stripping in case of localized leakage, making inspection and maintenance convenient, and meeting the needs of efficient construction and convenient operation and maintenance of prefabricated buildings, thus ensuring the overall quality and service life of the building.

[0032] Among them, such as Figures 3 to 6As shown, a tensioning mechanism is installed on the first rubber pad 2 to ensure that the second rubber pad 21 is tightly abutted against the locking groove 14. The tensioning mechanism includes multiple linearly arranged and equally spaced mounting grooves 22 on the first rubber pad 2. The mounting grooves 22 are used to accommodate the locking blocks 23 and the cover plate 4, providing installation space for the components of the tensioning mechanism and ensuring the orderly assembly of each component. The locking blocks 23 are movably connected inside the mounting grooves 22. The locking blocks 23 are the core carrier connecting the tensioning mechanism and the clamping mechanism, ensuring the transmission of fastening and sealing effects. Multiple second locking grooves 13 are provided on the concrete component slab 1 to lock the two ends of the locking blocks 23. The second locking grooves 13 are used to lock the two ends of the locking blocks 23, ensuring that there is a certain gap between the mounting grooves 22 and the locking blocks 23, so that the moved first rubber pad 2 can drive the second rubber pad 21 to tightly abut against the locking groove 14. Bolts 26 are provided inside the locking blocks 23. When the bolts 26 are tightened, they drive the rubber pads to press against the locking groove 14, enhancing the sealing effect. Each mounting slot 22 has a second threaded hole 27 inside, and a metal threaded ring is embedded inside the second threaded hole 27. The metal threaded ring provides a stable threaded connection base for the bolt 26, enhances the wear resistance and load-bearing strength of the second threaded hole 27, and prevents damage to the second threaded hole 27 during repeated tightening and loosening of the bolt 26. This ensures a reliable helical fit between the bolt 26 and the second threaded hole 27, and ensures that the tightening mechanism can stably drive the first rubber pad 2 and the second rubber pad 21 to press against the locking groove 14, maintaining the durability of the sealing and seepage prevention effect. One end of each bolt 26 moves through the locking block 23 and is threadedly connected to the metal threaded ring inside the second threaded hole 27.

[0033] Secondly, such as Figures 1 to 6 As shown, the concrete component slab 1 and the first rubber pad 2 are also equipped with clamping mechanisms. These clamping mechanisms are used to move both concrete component slabs 1 towards the first rubber pad 2 and clamp them together. The clamping mechanism includes a first slot 12 formed on the concrete component slab 1 and communicating with a corresponding second slot 13. The first slot 12 is used to accommodate a clamping plate 3 and provide a guide for its movement, allowing the clamping plate 3 to stably drive the concrete component slab 1 to move and clamp. A clamping plate 3 is movably connected inside each of the first slots 12. Each clamping plate 3 is equipped with multiple hexagonal bolts 32 corresponding to the second slots 13. The hexagonal bolts 32 are pulled when the spiral sleeve block 33 rotates, thereby driving the clamping plate 3 and the concrete component slab 1 to move closer and clamp together. One end of the hexagonal bolt 32 movably passes through the clamping plate 3. Positioning grooves 24 are formed at both ends of the clamping block 23. The positioning grooves 24 provide positioning assurance for the engagement of the hexagonal bolt 32 and the spiral sleeve block 33. The positioning grooves 24 are used for the end of the clamping plate 3 to move through.

[0034] In addition, such as Figures 3 to 6As shown, the clamping block 23 has a pair of spiral sleeve blocks 33 inside, which are spirally engaged with the ends of the hexagonal bolts 32. When the spiral sleeve blocks 33 are engaged by the positioning grooves 24, they rotate, pulling the hexagonal bolts 32 and moving the clamping plate 3. This is the core transmission component of the clamping mechanism. The outer wall of the spiral sleeve blocks 33 has multiple tightening grooves 34 arranged in a circular array. These grooves allow rod-shaped tools to be inserted, facilitating the rotation of the spiral sleeve blocks 33 to achieve pre-fixing and secondary tightening operations. The clamping plate 3 has multiple hexagonal grooves 31 arranged linearly. These grooves allow the hexagonal ends of the hexagonal bolts 32 to engage, restricting their rotation and ensuring a proper spiral engagement with the spiral sleeve blocks 33.

[0035] It is worth noting that, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, each of the locking blocks 23 has a pair of first screw holes 25, which are used to connect with the hexagon socket head cap screws 41 on the cover plate 4 to achieve fixed installation of the cover plate 4. The mounting groove 22 has a cover plate 4 that fits into the second locking groove 13. The cover plate 4 has a pair of hexagon socket head cap screws 41, which are used to fix the cover plate 4 to the locking block 23 to ensure the protective stability of the cover plate 4. One end of each hexagon socket head cap screw 41 moves through the cover plate 4 and is connected to the first screw hole 25. The pair of first screw holes 25 and the positioning groove 24 are symmetrically arranged with the axis of the corresponding bolt 26 as the center.

[0036] This application provides a construction method for sealing and preventing seepage at the joints of prefabricated concrete components, such as... Figure 1 - Figure 6 As shown, it includes the following steps:

[0037] S1. First, attach the first rubber pad 2 to the splice seam 11, insert the second rubber pad 21 into the locking groove 14, then insert the clamping block 23 into the installation groove 22, and insert the clamping plate 3 into the first clamping groove 12, so that the end of the hexagonal bolt 32 passes through the positioning groove 24 and is screwed into the spiral sleeve block 33 to complete the initial positioning.

[0038] S2. Insert the rod-shaped tool into the tensioning groove 34, rotate the spiral sleeve block 33, pull the hex bolt 32 to drive the clamping plate 3 and the concrete component plate 1 to stick to the first rubber pad 2, and complete the clamping pre-fixing.

[0039] S3. Next, tighten the inner bolt 26 of the clip 23 so that it is spirally engaged with the metal threaded ring of the second screw hole 27, which drives the rubber pad to press the locking groove 14 to seal, thus completing the enhanced seal.

[0040] S4. Then rotate the spiral sleeve block 33 again to further clamp the rubber pad 1 of the concrete component plate, and use the second rubber pad 21 to elastically adjust and seal the splice joint 11 to complete the secondary tightening.

[0041] S5. Finally, place the cover plate 4 into the mounting slot 22 and the second slot 13, and use the hexagonal socket head cap screw 41 to thread the cover plate 4 through the first screw hole 25 to complete the protective sealing.

[0042] In this embodiment, when using the prefabricated concrete component splicing joint sealing and seepage prevention structure, the first rubber pad 2 is first attached to the splice joint 11 between the two concrete component plates 1, and the second rubber pad 21 is aligned with the locking groove 14 on the concrete component plate 1 and inserted for initial positioning. Then, the locking block 23 is installed into the mounting groove 22 of the first rubber pad 2, and the locking plate 3 is embedded into the first locking groove 12 of the concrete component plate 1, ensuring that the end of the hexagonal bolt 32 on the locking plate 3 passes through the positioning groove 24 of the locking block 23 and is spirally engaged with the spiral sleeve block 33 inside the locking block 23.

[0043] Next, preliminary fixing is performed using a clamping mechanism: insert the rod-shaped tool into the tension groove 34 of the spiral sleeve block 33, rotate the rod-shaped tool to drive the spiral sleeve block 33 to rotate, and when the spiral sleeve block 33 rotates, it will pull the hexagonal bolt 32 through the thread action, thereby driving the clamping plate 3 to move towards the first rubber pad 2. Since the clamping plate 3 is stuck in the first clamping groove 12, it will simultaneously drive the corresponding concrete component plate 1 to move closer to the first rubber pad 2, so that the two concrete component plates 1 slightly clamp the first rubber pad 2, completing the preliminary positioning.

[0044] Then, the tightening mechanism is activated to strengthen the seal: the bolts 26 in the locking block 23 are rotated one by one. The bolts 26 are threadedly connected to the metal threaded ring in the second screw hole 27 in the mounting groove 22. As the bolts 26 are tightened, the first rubber pad 2 and the second rubber pad 21 will be tightly pressed against the locking groove 14 of the concrete component slab 1. By utilizing the elastic material properties of the first rubber pad 2 and the second rubber pad 21, the locking groove 14 and the second rubber pad 21 are tightly fitted and sealed, blocking the water seepage channel.

[0045] Finally, the fastening and protection are completed: the spiral sleeve block 33 is rotated again using the rod-shaped tool to further tighten the two concrete component plates 1, clamping the first rubber pad 2. Simultaneously, the concrete component plates 1 can be slightly adjusted by the elasticity of the second rubber pad 21, ensuring a complete seal at the splice joint 11. Then, the cover plate 4 is placed into the mounting groove 22 and inserted into the second slot 13. The cover plate 4 is then spirally connected to the first screw hole 25 on the clamping block 23 via an internal hex bolt 41, thus protecting the clamping block 23, bolt 26, and other components. Throughout the process, the tight engagement of the second rubber pad 21 with the locking groove 14, the elastic sealing of the first rubber pad 2, and the tightening action of the clamping mechanism work together to effectively improve the seepage prevention performance of the splice joint. Furthermore, the structure is detachable, facilitating later inspection and maintenance.

[0046] The above specific embodiments are merely optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A sealing and seepage-proof structure for splicing joints of prefabricated concrete components, characterized in that, Includes a pair of assembled concrete slab components (1) and a splice joint (11) formed after assembly: A locking groove (14) is provided on the concrete component slab (1) and communicates with the splice joint (11). A first rubber pad (2) is provided inside the splice joint (11), and a second rubber pad (21) that is inserted into the locking groove (14) is fixedly connected to the first rubber pad (2). A tensioning mechanism is installed on the first rubber pad (2) to make the second rubber pad (21) tightly abut against the locking groove (14). The concrete component plate (1) and the first rubber pad (2) are also provided with a clamping mechanism, which is used to make both concrete component plates (1) move towards the first rubber pad (2) to abut against each other.

2. The prefabricated concrete component splice joint sealing and seepage prevention structure according to claim 1, characterized in that, The tensioning mechanism includes multiple linearly arranged and equally spaced mounting slots (22) on the first rubber pad (2). The mounting slots (22) are movably connected to the inside of the mounting slots (23). The concrete component plate (1) is provided with multiple second slots (13) that hold the two ends of the locking blocks (23). The locking blocks (23) are provided with bolts (26). The mounting slots (22) are provided with second screw holes (27). The second screw holes (27) are inlaid with metal threaded rings. One end of the bolts (26) movably passes through the locking blocks (23) and is threadedly connected to the metal threaded rings in the second screw holes (27).

3. The prefabricated concrete component splicing joint sealing and seepage prevention structure according to claim 2, characterized in that, The clamping mechanism includes a first slot (12) opened on the concrete component plate (1) and connected to the corresponding second slot (13). The first slot (12) is movably connected to a plate (3). The plate (3) is provided with a plurality of hexagonal bolts (32) corresponding to the second slot (13). One end of the hexagonal bolt (32) movably passes through the plate (3). The two ends of the clamping block (23) are provided with positioning grooves (24). The positioning grooves (24) are used for the end of the plate (3) to move through. The inside of the clamping block (23) is provided with a pair of spiral sleeves (33) that are spirally sleeved to the end of the hexagonal bolt (32).

4. The prefabricated concrete component splice joint sealing and seepage prevention structure according to claim 3, characterized in that, The outer wall of the spiral sleeve block (33) is provided with multiple tension grooves (34) arranged in a circumferential array.

5. A sealing and seepage-proof structure for splicing joints of prefabricated concrete components according to claim 3, characterized in that, The card plate (3) is provided with multiple hexagonal grooves (31) arranged in a linear pattern. The hexagonal grooves (31) are used for the hexagonal ends of the hexagonal bolts (32) to be inserted.

6. The prefabricated concrete component splice joint sealing and seepage prevention structure according to claim 2, characterized in that, Each of the card blocks (23) is provided with a pair of first screw holes (25). The inside of the mounting groove (22) is provided with a cover plate (4) that is inserted into the second card groove (13). The cover plate (4) is provided with a pair of internal hex bolts (41). One end of each internal hex bolt (41) is movably inserted through the cover plate (4) and then spirally connected to the first screw hole (25).

7. The prefabricated concrete component splice joint sealing and seepage prevention structure according to claim 1, characterized in that, The first rubber pad (2) and the second rubber pad (21) are provided with a metal frame inside, and the metal frame is set in an integral T-shaped structure.

8. A sealing and seepage-proof structure for splicing joints of prefabricated concrete components according to claim 6, characterized in that, The first screw hole (25) and the positioning groove (24) are symmetrically arranged with the axis of the corresponding bolt (26) as the center.

9. A construction method for a prefabricated concrete component splice joint sealing and seepage prevention structure, applied to the prefabricated concrete component splice joint sealing and seepage prevention structure as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. First, fit the first rubber pad (2) to the splice seam (11), then insert the second rubber pad (21) into the locking groove (14), then insert the clamping block (23) into the installation groove (22), and insert the clamping plate (3) into the first clamping groove (12), so that the end of the hexagonal bolt (32) passes through the positioning groove (24) and is screwed into the spiral sleeve block (33) to complete the initial positioning; S2. Insert the rod-shaped tool into the tension groove (34), rotate the spiral sleeve block (33), pull the hexagonal bolt (32) to drive the clamping plate (3) and the concrete component plate (1) to stick to the first rubber pad (2) to complete the clamping pre-fixing. S3. Next, tighten the inner bolt (26) of the clip (23) so that it is spirally engaged with the metal threaded ring of the second screw hole (27), thereby driving the rubber pad to press the locking groove (14) to seal and complete the enhanced seal. S4. Then rotate the spiral sleeve block (33) again to further clamp the rubber pad plate of the concrete component plate (1), and use the second rubber pad plate (21) to elastically adjust and seal the splice joint (11) to complete the secondary tightening. S5. Finally, place the cover plate (4) into the mounting slot (22) and the second slot (13), and use an internal hex bolt (41) to thread the cover plate (4) through the screw hole (25) to complete the protective encapsulation.

Images