A deformation joint protection structure

CN224859538UActive Publication Date: 2026-10-16POWERCHINA HUADONG ENG CORP LTD
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Patent Information

Application Number
CN202522618910.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-10
Publication Date
2026-10-16
Estimated Expiration
2035-12-10

AI Technical Summary

Benefits of technology

[0014] The beneficial effects of this utility model are as follows: By installing support plates at the bottom of the two side walls inside the road expansion joint and installing support blocks at the top of the support plates, and by creating a cavity inside the support blocks, creating drainage holes at the top of the support blocks, and creating drainage outlets at the ends of the support blocks, it is easy for water accumulated on the road surface to flow into the support blocks through the drainage holes at the top of the support blocks and finally be discharged through the drainage outlets. By connecting a protective plate between the two support blocks, water flow into the expansion joint can be effectively prevented. This makes it easy to install this protective structure inside the expansion joint and provides a good waterproof effect.

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Abstract

The utility model relates to a kind of protection structure of deformation joint.It is applicable to the field of construction technology.The utility model adopts the technical scheme: a kind of protection structure of deformation joint, with: support block, installation is in the position of deformation joint both sides side wall on road surface, support block top is flush with road surface, chamber is made in support block, support block top is made with several drain holes, support block is made with drain port on the end in the length direction along deformation joint;Protective plate is connected between the support block of deformation joint both ends.Such, accumulated water on road surface when flowing to deformation joint will flow into support block through drain hole, and finally through the drain port of support block end and discharge, and under the effect of protective plate between two support blocks, avoid accumulated water to flow into deformation joint to cause influence to deformation joint.
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Description

Technical Field

[0001] This utility model relates to a protective structure for expansion joints. It is applicable to the field of building construction technology. Background Technology

[0002] The waterproofing device for expansion joints in prefabricated underpass tunnels is a waterproofing structure used at the joints of prefabricated components in tunnel engineering. This device primarily addresses the waterproofing problem caused by displacement of tunnel expansion joints due to factors such as temperature changes, foundation settlement, or earthquakes. It forms a multi-layered composite waterproofing system by installing elastic sealing materials, drainage structures, and structural reinforcement layers between the prefabricated components on both sides of the expansion joint. Its core design leverages the flexibility of prefabricated construction, integrating the waterproofing device with the prefabricated components for rapid on-site installation, avoiding the leakage risks associated with complex and time-consuming waterproofing processes in traditional cast-in-place construction. Utility Model Content

[0003] The technical problem to be solved by this utility model is: to solve the above-mentioned technical problem, this utility model provides a protective structure for expansion joints.

[0004] The technical solution adopted in this utility model is: a protective structure for expansion joints, having: The support block is installed on both sides of the expansion joint on the road surface. The top of the support block is flush with the road surface. The support block has a cavity inside and several drainage holes on the top. The support block has a drainage outlet at the end along the length of the expansion joint. The protective plate is connected between the support blocks at both ends of the expansion joint.

[0005] A support plate is installed at the lower end of the support block, and a support structure is provided between the support plate and the support block. The support structure has a first locking block installed on the side wall of the support plate and a second locking block installed on the bottom wall of the support block. The first locking block is arranged in a horizontal direction, and the second locking block is arranged in a vertical direction. A first locking groove is formed on the top of the first locking block. When the support block is placed on the support plate, the second locking block is locked in the first locking groove. A first mounting hole is formed at the end of the first locking block, and a second mounting hole is formed on the second locking block. When the second locking block is locked in the first locking groove, the first mounting hole is located at the position corresponding to the first mounting hole. The first locking block and the second locking block are connected by a first bolt that passes through both the first mounting hole and the second mounting hole.

[0006] A connecting block is installed on the side wall of the support plate. A sliding groove is formed on the side wall of the connecting block corresponding to the support plate. A through groove is formed on the side wall of the connecting block leading to the sliding groove. A slider that can slide and engage with the sliding groove is installed at the end of the first locking block. When the slider of the first locking block slides and engages with the sliding groove on the connecting block, the first locking block can extend out of the connecting block through the through groove on the connecting block. A third mounting hole is formed on the connecting block. A fourth mounting hole is formed on the slider. When the slider moves to the corresponding position in the sliding groove of the connecting block, the fourth mounting hole on the slider moves to the position corresponding to the third mounting hole. The connecting block and the slider are connected by a second bolt that passes through both the third mounting hole and the fourth mounting hole.

[0007] The support plate has a rod on the side wall that contacts the road surface that can be anchored into the ground, and rubber pads are arranged on the side wall that contacts the road surface.

[0008] The support plate is fixedly installed on the side walls of the expansion joint by the fourth bolt, and rubber blocks are set on the side walls of the support plate at the positions of the connecting blocks on both sides.

[0009] Limiting grooves are provided on the side walls of the support blocks on both sides of the expansion joint facing the other support block, and limiting blocks that cooperate with the limiting grooves are provided at both ends of the protective plate.

[0010] A fifth mounting hole is made on the top of the support block, and a sixth mounting hole is made on the limiting block. When the limiting block is installed in the slot, the sixth mounting hole on the limiting block is located at the position corresponding to the fifth mounting hole on the support block. The protective plate and the support block are connected by a third bolt that passes through both the fifth mounting hole and the sixth mounting hole.

[0011] On the support blocks on both sides of the expansion joint, there are fixing blocks on the sidewalls facing the other support block. The limiting groove is made on the fixing block, and a reinforcing rib is provided between the support block and the fixing block.

[0012] The protective plate protrudes upwards in the middle.

[0013] Anti-slip strips are made on the side wall of the support block that contacts the road surface.

[0014] The beneficial effects of this utility model are as follows: By installing support plates at the bottom of the two side walls inside the road expansion joint and installing support blocks at the top of the support plates, and by creating a cavity inside the support blocks, creating drainage holes at the top of the support blocks, and creating drainage outlets at the ends of the support blocks, it is easy for water accumulated on the road surface to flow into the support blocks through the drainage holes at the top of the support blocks and finally be discharged through the drainage outlets. By connecting a protective plate between the two support blocks, water flow into the expansion joint can be effectively prevented. This makes it easy to install this protective structure inside the expansion joint and provides a good waterproof effect.

[0015] This utility model provides a support structure between the support plate and the support block, which facilitates the support block to be supported by the top of the support plate and the support structure when the support block is installed on the support plate, thus giving the support block good structural stability. Attached Figure Description

[0016] Figure 1 , Figure 2 , Figure 3 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 4 This is a cross-sectional view of the structure of this utility model.

[0018] Figure 5 for Figure 3 A magnified view of part A in the diagram.

[0019] Figure 6 for Figure 4 A magnified view of part B in the diagram.

[0020] In the diagram: 1. Road surface; 2. Protective plate; 3. Third bolt; 4. Filter screen; 5. Drain outlet; 6. Reinforcing rib; 7. Support block; 8. Anti-slip strip; 9. Rubber pad; 10. Insert rod; 11. Fourth bolt; 12. Second locking block; 13. First bolt; 14. First locking block; 15. Second bolt; 17. Slide groove; 18. Rubber block; 19. Limiting groove; 20. Limiting block; 21. Support plate. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0022] Example 1 is a protective structure for expansion joints. In this example, it has: Support block 7 is installed on both sides of the expansion joint on the road surface 1. The top of support block 7 is flush with the road surface 1. Support block 7 has a cavity inside. Support block 7 has several drainage holes on the top. Support block 7 has a drainage outlet 5 at the end along the length of the expansion joint. The protective plate 2 is connected between the support blocks 7 at both ends of the expansion joint. The support blocks 7 are installed on the sidewall of the expansion joint. A cavity is formed within the support block 7, and several drainage holes are formed at the top of the support block 7. Drainage outlets 5 are formed at the ends of the support blocks 7 along the length of the expansion joint. Thus, water accumulating on the road surface 1 flows into the support blocks 7 through the drainage holes when it flows towards the expansion joint, and is eventually discharged through the drainage outlets 5 at the ends of the support blocks 7. Furthermore, the protective plate 2 between the two support blocks 7 prevents water from flowing into the expansion joint and thus avoiding any impact on the expansion joint.

[0023] In this embodiment, the middle part of the protective plate 2 protrudes upward. In this way, water flow can easily flow onto the support blocks 7 on both sides of the protective plate 2.

[0024] In this embodiment, anti-slip strips 8 are formed on the side wall of the support block 7 that contacts the road surface 1. This enhances the friction between the support block 7 and the side wall of the expansion joint of the road surface 1.

[0025] In this embodiment, a filter screen 4 is arranged at the drain outlet 5 at the top of the support block 7. In this way, the water flowing into the support block 7 is filtered by the filter screen 4.

[0026] Example 2 is a protective structure for expansion joints. Based on Example 1, in this example, a support plate 21 is installed at the lower end of the support block 7, and a support structure is provided between the support plate 21 and the support block 7. The support structure has a first locking block 14 installed on the side wall of the support plate 21 and a second locking block 12 installed on the bottom wall of the support block 7. The first locking block 14 is arranged in a horizontal direction, and the second locking block 12 is arranged in a vertical direction. The top of the first locking block 14 has a first locking groove. When the support block 7 is arranged on the support plate 21, the second locking block 12 is engaged in the first locking groove. The end of the first locking block 14 has a first mounting hole, and the second locking block 12 has a second mounting hole. When the second locking block 12 is engaged in the first locking groove, the first mounting hole is located at the position corresponding to the first mounting hole. The first locking block 14 and the second locking block 12 are connected by a first bolt 13 that passes through both the first mounting hole and the second mounting hole. Thus, by setting a support plate 21 at the lower end of the support block 7, the structural size of the support block 7 is reduced. By setting a support structure between the support block 7 and the support plate 21, when the support block 7 is arranged on the support plate 21, the second locking block 12 at the lower end of the support block 7 is locked in the first locking groove of the first locking block 14 on the side wall of the support plate 21. When the first locking block 14 and the second locking block 12 are connected by the first bolt 13, the top of the support plate 21 and the support structure provide support for the support block 7, giving the support block 7 better structural stability.

[0027] In this embodiment, a connecting block is installed on the side wall of the support plate 21. A groove 17 is formed on the side wall of the connecting block corresponding to the support plate 21, and a through groove is formed on the side wall of the connecting block leading to the groove 17. A slider capable of slidingly engaging with the groove 17 is installed at the end of the first locking block 14. When the slider of the first locking block 14 slides into the groove 17 on the connecting block, the first locking block 14 can extend out of the connecting block through the through groove. A third mounting hole is formed on the connecting block, and a fourth mounting hole is formed on the slider. When the slider moves to the corresponding position within the groove 17 of the connecting block, the fourth mounting hole on the slider moves to the position corresponding to the third mounting hole. The connecting block and the slider are connected by a second bolt 15 passing through both the third and fourth mounting holes. Thus, by loosening the second bolt 15, it is easy to assemble and disassemble the first locking block 14 on the support plate 21.

[0028] In this embodiment, a rod 10, which can be anchored into the ground, is formed on the side wall of the support plate 21 that contacts the road surface 1. This enhances the connection strength between the support plate 21 and the road surface 1. A rubber pad 9 is arranged on the side wall of the support plate 21 that contacts the road surface 1. Thus, the rubber pad 9 arranged between the support plate 21 and the road surface 1 provides a good cushioning effect.

[0029] In this embodiment, the support plate 21 is fixedly installed on the side walls of the expansion joint by the fourth bolt 11. Rubber blocks 18 are provided on the side walls of the support plate 21 at the positions of the connecting blocks on both sides. Thus, when the first locking block 14 moves to the end of the connecting block within the groove 17 of the connecting block, the first locking block 14 will squeeze the rubber blocks 18, causing the rubber blocks 18 to undergo elastic deformation, absorbing and buffering the deformation force, preventing the fourth bolt 11 from bearing excessive shear and tensile forces, and preventing it from loosening or falling off.

[0030] Example 3 is a protective structure for expansion joints. Based on Example 1, in this example, the support blocks 7 on both sides of the expansion joint are provided with limiting grooves 19 on the side walls facing the other support block 7, and the two ends of the protective plate 2 are provided with limiting blocks 20 that cooperate with the slots. The limiting blocks 20 at both ends of the protective plate 2 are fitted into the limiting grooves 19 of the support block 7.

[0031] In this embodiment, a fifth mounting hole is formed on the top of the support block 7, and a sixth mounting hole is formed on the limiting block 20. When the limiting block 20 is engaged in the limiting groove 19, the sixth mounting hole on the limiting block 20 is located at the position corresponding to the fifth mounting hole on the support block 7. The protective plate 2 and the support block 7 are connected by a third bolt 3 that passes through both the fifth mounting hole and the sixth mounting hole. Thus, by engaging both ends of the protective plate 2 in the limiting grooves 19 of the two support blocks 7 and then connecting the protective plate 2 to the support block 7 with the first bolt 13, the assembly and disassembly of the protective plate 2 can be easily achieved.

[0032] In this embodiment, a fixing block is provided on the side wall of the support block 7 on both sides of the expansion joint facing the other support block 7, the limiting groove 19 is made on the fixing block, and a reinforcing rib 6 is provided between the support block 7 and the fixing block.

[0033] Example 4 is a protective structure for expansion joints. In this example, it has: Support block 7 is installed on both sides of the expansion joint on the road surface 1. The top of support block 7 is flush with the road surface 1. Support block 7 has a cavity inside. Support block 7 has several drainage holes on the top. Support block 7 has a drainage outlet 5 at the end along the length of the expansion joint. The protective plate 2 is connected between the support blocks 7 at both ends of the expansion joint.

[0034] A support plate 21 is installed at the lower end of the support block 7. A support structure is provided between the support plate 21 and the support block 7. The support structure has a first locking block 14 installed on the side wall of the support plate 21 and a second locking block 12 installed on the bottom wall of the support block 7. The first locking block 14 is arranged in a horizontal direction and the second locking block 12 is arranged in a vertical direction. The top of the first locking block 14 has a first locking groove. When the support block 7 is arranged on the support plate 21, the second locking block 12 is locked in the first locking groove. The end of the first locking block 14 has a first mounting hole and the second locking block 12 has a second mounting hole. When the second locking block 12 is locked in the first locking groove, the first mounting hole is located at the position corresponding to the first mounting hole. The first locking block 14 and the second locking block 12 are connected by a first bolt 13 that passes through both the first mounting hole and the second mounting hole.

[0035] A connecting block is installed on the side wall of the support plate 21. A groove 17 is formed on the side wall of the connecting block corresponding to the support plate 21. A through groove is formed on the side wall of the connecting block leading to the groove 17. A slider that can slide and engage with the groove 17 is installed at the end of the first locking block 14. When the slider of the first locking block 14 slides and engages with the groove 17 on the connecting block, the first locking block 14 can extend out of the connecting block through the through groove on the connecting block. A third mounting hole is formed on the connecting block, and a fourth mounting hole is formed on the slider. When the slider moves to the corresponding position in the groove 17 of the connecting block, the fourth mounting hole on the slider moves to the position corresponding to the third mounting hole. The connecting block and the slider are connected by a second bolt 15 that passes through both the third mounting hole and the fourth mounting hole.

[0036] On the support plate 21, on the side wall in contact with the road surface 1, there is a rod 10 that can be anchored into the ground, and on the support plate 21, on the side wall in contact with the road surface 1, there is a rubber pad 9.

[0037] The support plate 21 is fixedly installed on the side walls of the expansion joint by the fourth bolt 11. Rubber blocks 18 are provided on the side walls of the support plate 21 at the positions of the connecting blocks on both sides.

[0038] On the support blocks 7 on both sides of the expansion joint, there are limit grooves 19 on the side walls facing the other support block 7, and the two ends of the protective plate 2 are provided with limit blocks 20 that cooperate with the limit grooves 19.

[0039] A fifth mounting hole is made on the top of the support block 7, and a sixth mounting hole is made on the limiting block 20. When the limiting block 20 is installed in the slot, the sixth mounting hole on the limiting block 20 is located at the position corresponding to the fifth mounting hole on the support block 7. The protective plate 2 and the support block 7 are connected by a third bolt 3 that passes through both the fifth mounting hole and the sixth mounting hole.

[0040] On the support blocks 7 on both sides of the expansion joint, there are fixed blocks on the side walls facing the other support block 7. The limiting groove 19 is made on the fixed block, and a reinforcing rib 6 is provided between the support block 7 and the fixed block.

[0041] The protective plate 2 protrudes upward in the middle.

[0042] Anti-slip strips 8 are made on the side wall of the support block 7 that is in contact with the road surface 1.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A protective structure for expansion joints, characterized in that: have: Support block (7) is installed on the side wall of the expansion joint on both sides of the road surface (1). The top of the support block (7) is flush with the road surface (1). The support block (7) has a cavity inside. The top of the support block (7) has several drainage holes. The support block (7) has a drainage outlet (5) at the end along the length of the expansion joint. The protective plate (2) is connected between the support blocks (7) at both ends of the expansion joint.

2. The protective structure for expansion joints according to claim 1, characterized in that: A support plate (21) is installed at the lower end of the support block (7). A support structure is provided between the support plate (21) and the support block (7). The support structure has a first locking block (14) installed on the side wall of the support plate (21) and a second locking block (12) installed on the bottom wall of the support block (7). The first locking block (14) is arranged in the horizontal direction, and the second locking block (12) is arranged in the vertical direction. The top of the first locking block (14) has a first locking groove. When the support block (7) is arranged on the support plate (21), the second locking block (12) is locked in the first locking groove. The end of the first locking block (14) has a first mounting hole, and the second locking block (12) has a second mounting hole. When the second locking block (12) is locked in the first locking groove, the first mounting hole is located at the position corresponding to the first mounting hole. The first locking block (14) and the second locking block (12) are connected by a first bolt (13) that passes through both the first mounting hole and the second mounting hole.

3. The protective structure for expansion joints according to claim 2, characterized in that: A connecting block is installed on the side wall of the support plate (21). A groove (17) is made on the side wall of the connecting block corresponding to the support plate (21). A through groove leading to the groove (17) is made on the side wall of the connecting block. A slider that can slide with the groove (17) is installed at the end of the first locking block (14). When the slider of the first locking block (14) slides with the groove (17) on the connecting block, the first locking block (14) can extend out of the connecting block through the through groove on the connecting block. A third mounting hole is made on the connecting block. A fourth mounting hole is made on the slider. When the slider moves to the corresponding position in the groove (17) of the connecting block, the fourth mounting hole on the slider moves to the position corresponding to the third mounting hole. The connecting block and the slider are connected by a second bolt (15) that passes through both the third mounting hole and the fourth mounting hole.

4. The protective structure for expansion joints according to claim 2, characterized in that: On the side wall of the support plate (21) that is in contact with the road surface (1), there is a rod (10) that can be anchored into the ground. On the side wall of the support plate (21) that is in contact with the road surface (1), there is a rubber pad (9).

5. The protective structure for expansion joints according to claim 2, characterized in that: The support plate (21) is fixedly installed on the side walls of the expansion joint by the fourth bolt (11). Rubber blocks (18) are provided on the side walls of the support plate (21) at the positions of the connecting blocks on both sides.

6. The protective structure for expansion joints according to claim 1, characterized in that: On the support blocks (7) on both sides of the expansion joint, there are limit grooves (19) on the side walls facing the other support block (7). The two ends of the protective plate (2) are provided with limit blocks (20) that cooperate with the slots. The limit blocks (20) at both ends of the protective plate (2) are fitted into the limit grooves (19) of the support block (7).

7. The protective structure for expansion joints according to claim 6, characterized in that: A fifth mounting hole is made on the top of the support block (7), and a sixth mounting hole is made on the limiting block (20). When the limiting block (20) is fitted into the limiting groove (19), the sixth mounting hole on the limiting block (20) is located at the position corresponding to the fifth mounting hole on the support block (7). The protective plate (2) and the support block (7) are connected by a third bolt (3) that passes through both the fifth mounting hole and the sixth mounting hole.

8. The protective structure for expansion joints according to claim 6, characterized in that: On the support blocks (7) on both sides of the expansion joint, there are fixed blocks on the side walls facing the other support block (7), the limiting groove (19) is made on the fixed block, and a reinforcing rib (6) is provided between the support block (7) and the fixed block.

9. The protective structure for expansion joints according to claim 1, characterized in that: The protective plate (2) protrudes upward in the middle.

10. A protective structure for expansion joints according to claim 1, characterized in that: Anti-slip strips (8) are made on the side wall of the support block (7) that is in contact with the road surface (1).