Waterproof elastic expansion joint
By using multiple waterproof modules and bolt rubber rings in the rubber expansion joints, the problems of short service life and high maintenance costs of existing rubber expansion joints are solved, and longer service life and lower maintenance costs are achieved.
Patent Information
- Application Number
- CN202421317406.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The existing rubber expansion joints have short service life and high maintenance and replacement costs when exposed to long-term exposure to rainwater and natural environment.
A waterproof elastic expansion joint is designed, and the high-strength rubber is covered by combining multiple waterproof modules (first waterproof module, second waterproof module and third waterproof module) to prevent rainwater erosion, and the double fixing method of bolts and rubber rings is used to enhance the waterproof effect.
It extends the service life of the expansion joint, reduces the cost of maintenance and replacement, and reduces the probability of slippage when the vehicle passes by through the design of anti-slip chutes and anti-slip modules.
Smart Images
Figure CN222666536U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of expansion joint waterproofing, in particular to a waterproof elastic expansion joint. Background Art
[0002] Building expansion joints, also known as expansion joints, refer to a structural joint set at an appropriate position along the construction joint direction of a building or structure to prevent cracks or damage to the structure due to climate and temperature changes (thermal expansion and contraction). Expansion joints divide building components above the foundation, such as walls, floors, roofs, etc., into two independent parts, so that the building or structure can be expanded and contracted horizontally along the long direction. Expansion joints are also used in the construction of bridges, such as rubber expansion joints.
[0003] At present, the rubber in the middle of most rubber expansion joints is directly connected between two box girders, and there is no other shielding on the surface. Long-term erosion by rain and natural environment will reduce the service life of the rubber and increase maintenance costs. Therefore, the utility model provides a waterproof elastic expansion joint to solve the problems raised in the above background technology. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a waterproof elastic expansion joint. When the device is in use, the high-strength rubber in the middle of the expansion joint is covered by the mutual combination of multiple first waterproof modules, second waterproof modules and third waterproof modules to avoid rainwater erosion, increase its service life and reduce the number of replacements.
[0005] To achieve the above object, the utility model provides the following technical solutions: a waterproof elastic expansion joint, comprising a first waterproof module, a second waterproof module, two pavement blocks, a third waterproof module, a disassembler, a bolt and an expansion joint body, wherein the expansion joint body comprises two baffles, and water diversion grooves are fixedly arranged on the upper ends of opposite sides of the two baffles, and the disassembler is arranged in the gap between the third waterproof module and the two pavement blocks;
[0006] The first waterproof module comprises a No. 1 support layer, a No. 1 shock absorbing layer is fixedly disposed on the upper end of the No. 1 support layer, a No. 1 waterproof layer is fixedly disposed on the upper end of the No. 1 shock absorbing layer, a connection groove is provided at the rear end of the first waterproof module, a connection block is fixedly disposed at one end of the first waterproof module and the second waterproof module, and the third waterproof module comprises a main body, a covering layer is fixedly disposed at one end of the main body;
[0007] Through the above technical solution, when the device is in use, the second waterproof module, the third waterproof module and multiple first waterproof modules are installed in the middle of the expansion joint body to cover the high-strength rubber to avoid erosion by rainwater, increase its service life and reduce maintenance costs.
[0008] Furthermore, the two baffles are fixedly arranged on opposite sides of the two road surfaces, and high-strength rubber is connected between the two baffles;
[0009] Through the above technical solution, the baffle can help make the force on both sides of the high-strength rubber more uniform, and the high-strength rubber can help connect the two baffles to avoid offset between the two road surfaces.
[0010] Furthermore, the upper ends of the first waterproof module, the second waterproof module and the third waterproof module are all fixedly provided with anti-slip grooves;
[0011] Through the above technical solution, the anti-skid groove is used to help reduce the probability of the vehicle slipping when passing through the connecting groove.
[0012] Furthermore, the first waterproof module, the second waterproof module and the third waterproof module are all slidably arranged in the middle of the expansion joint body and fixed by bolts, and a rubber ring is fixed in the middle of the nut of the bolt;
[0013] Through the above technical solution, the dual fixation of clamping and bolts can help make the three types of waterproof modules more firmly fixed, and the rubber ring can help prevent rainwater from entering the gap between the screw hole and the bolt, avoiding rust on the bolt and increasing the difficulty of disassembly.
[0014] Furthermore, fixing plates are fixedly provided at both ends of the opposite sides of the two baffles, and the first waterproof module is provided in plurality;
[0015] Through the above technical solution, the fixing plate can be used to further avoid deviation between the two road surfaces due to thermal expansion and contraction.
[0016] Furthermore, the second waterproof module includes a second supporting layer, a second shock absorbing layer is fixedly disposed on the upper end of the second supporting layer, and a second waterproof layer is fixedly disposed on the upper end of the second shock absorbing layer;
[0017] Through the above technical solution, the same structure as the first waterproof module is adopted, which is beneficial for the vehicle not to feel bumpy when passing through different waterproof modules.
[0018] Furthermore, both sides of the second waterproof module and the plurality of first waterproof modules are fixedly provided with water baffles, and the plurality of water baffles are penetrated by two disassembly holes;
[0019] Through the above technical solution, the water retaining plate can help prevent rainwater from entering the expansion joint body from the side, and the disassembly hole can help the user to remove and replace the waterproof module more easily.
[0020] The utility model has the following beneficial effects:
[0021] 1. The utility model proposes a waterproof elastic expansion joint. When the device is in use, by installing three waterproof modules, the high-strength rubber in the middle of the expansion joint can be covered to avoid long-term exposure to the outside, reduce the damage caused by rain and other natural environments, make it have a longer service life, and reduce the cost of maintenance and replacement.
[0022] 2. The utility model proposes a waterproof elastic expansion joint. When the device is installed, three waterproof modules are spliced together. When one of the waterproof modules is damaged, it can be disassembled and replaced without replacing the entire module, thereby reducing maintenance costs. In addition, by mutually clamping the four fixing plates in pairs, the two road surfaces can be prevented from offsetting each other, thereby reducing the pressure on the high-strength rubber. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is an axonometric schematic diagram of the utility model;
[0024] Figure 2 It is an axonometric schematic diagram of the expansion joint body of the utility model;
[0025] Figure 3 It is a cross-sectional schematic diagram of the expansion joint body of the utility model;
[0026] Figure 4 This is an axonometric diagram of the first waterproof module of the utility model;
[0027] Figure 5 This is an axonometric diagram of the second waterproof module of the present invention;
[0028] Figure 6 This is an axonometric diagram of the third waterproof module of the present utility model;
[0029] Figure 7 It is an axonometric schematic diagram of the dismantling device of the utility model;
[0030] Figure 8 For the utility model Figure 1 An enlarged schematic diagram of point A.
[0031] Legend:
[0032] 1. The first waterproof module; 2. The second waterproof module; 3. The road surface; 4. The third waterproof module; 5. The expansion joint body; 6. The anti-skid groove; 7. The connecting groove; 8. The water retaining plate; 9. The disassembly hole; 10. The connecting block; 11. The rubber ring; 12. The bolt; 13. The disassembler; 101. The first waterproof layer; 102. The first shock-absorbing layer; 103. The first supporting layer; 201. The second waterproof layer; 202. The second shock-absorbing layer; 203. The second supporting layer; 401. The main body; 402. The covering layer; 501. The water diversion channel; 502. The baffle; 503. The fixing plate; 504. The high-strength rubber. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0034] Reference Figure 1-8 , the utility model provides an embodiment: a waterproof elastic expansion joint, including a first waterproof module 1, a second waterproof module 2, two road surfaces 3, a third waterproof module 4, a disassembler 13, a bolt 12 and an expansion joint body 5, the expansion joint body 5 includes two baffles 502, which is conducive to making the force on both sides of the high-strength rubber 504 more uniform, and the upper ends of the opposite sides of the two baffles 502 are fixedly provided with a water diversion groove 501, which is conducive to discharging rainwater and avoiding the accumulation of rainwater to form puddles. The disassembler 13 is arranged in the gap between the third waterproof module 4 and the two sections of the road surface 3, which is conducive to replacing the anti-skid module during maintenance;
[0035] The first waterproof module 1 includes a No. 1 support layer 103, and a No. 1 shock-absorbing layer 102 is fixedly provided on the upper end of the No. 1 support layer 103, which is conducive to reducing the bumpy feeling when the vehicle passes by. The No. 1 shock-absorbing layer 102 is fixedly provided on the upper end of the No. 1 waterproof layer 101, which is conducive to preventing rainwater from entering the expansion joint body 5. A connecting groove 7 is opened at the rear end of the first waterproof module 1, and one end of the first waterproof module 1 and the second waterproof module 2 are fixedly provided with a connecting block 10, which is conducive to cooperating with the connecting groove 7 to prevent rainwater from entering the expansion joint body 5 from the connection. The third waterproof module 4 includes a main body 401, and a covering layer 402 is fixedly provided on one end of the main body 401, which is conducive to preventing rainwater from entering the expansion joint body 5 from the connection between the second waterproof module 2 and the third waterproof module 4.
[0036] The two baffles 502 are fixedly arranged on opposite sides of the two road surfaces 3, respectively. A high-strength rubber 504 is connected between the two baffles 502, which is conducive to connecting the two baffles 502 together to prevent the two road surfaces 3 from offsetting due to thermal expansion and contraction. The upper ends of the first waterproof module 1, the second waterproof module 2 and the third waterproof module 4 are fixedly provided with anti-skid grooves 6, which is conducive to preventing the vehicle from slipping when passing. The first waterproof module 1, the second waterproof module 2 and the third waterproof module 4 are all slidably arranged in the middle of the expansion joint body 5 and fixed with bolts 12. A rubber ring 11 is fixed in the middle of the nut of the bolt 12, which is conducive to preventing rainwater from entering the gap between the screw hole and the bolt 12, causing the bolt 12 to rust. The opposite side of the two baffles 502 Both ends of the module 2 are fixedly provided with fixing plates 503, which is beneficial to further prevent the two road surfaces 3 from offsetting. Multiple first waterproof modules 1 are provided, which is beneficial to covering most of the expansion joint body 5. The second waterproof module 2 includes a No. 2 support layer 203, which is beneficial to prevent collapse when a vehicle passes by. A No. 2 shock-absorbing layer 202 is fixedly provided on the upper end of the No. 2 support layer 203, which is beneficial to reducing the bumpy feeling when a vehicle passes by. A No. 2 waterproof layer 201 is fixedly provided on the upper end of the No. 2 shock-absorbing layer 202, which is beneficial to waterproofing. Water retaining plates 8 are fixedly provided on both sides of the second waterproof module 2 and multiple first waterproof modules 1, which is beneficial to preventing rainwater from entering the expansion joint body 5 from the side. Multiple water retaining plates 8 are penetrated by two disassembly holes 9, which is beneficial to disassembly and replacement.
[0037] Working principle: When the device is in use, rainwater flows from the upper end surfaces of the first waterproof module 1, the second waterproof module 2 and the third waterproof module 4, which are all curved, to the water diversion grooves 501 on both sides to protect the high-strength rubber 504 at the lower end. In addition, the connection parts of the multiple first waterproof modules 1 are connected together by connecting grooves 7 and connecting blocks 10, which can also prevent rainwater from entering the expansion joint body 5 from the connection parts. When the vehicle passes through the first waterproof module 1, the No. 1 shock-absorbing layer 102 in the middle can reduce the bumpy feeling when the vehicle passes by.
[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A waterproof elastic expansion joint, comprising a first waterproof module (1), a second waterproof module (2), two pavements (3), a third waterproof module (4), a disassembler (13), a bolt (12) and an expansion joint body (5), characterized in that: The expansion joint body (5) comprises two baffles (502), and water diversion grooves (501) are fixedly arranged at the upper ends of opposite sides of the two baffles (502), and the disassembler (13) is arranged in the gap between the third waterproof module (4) and the two pavements (3); The first waterproof module (1) comprises a first supporting layer (103), a first shock absorbing layer (102) is fixedly arranged on the upper end of the first supporting layer (103), a first waterproof layer (101) is fixedly arranged on the upper end of the first shock absorbing layer (102), a connecting groove (7) is provided at the rear end of the first waterproof module (1), a connecting block (10) is fixedly arranged at one end of the first waterproof module (1) and the second waterproof module (2), and the third waterproof module (4) comprises a main body (401), a covering layer (402) is fixedly arranged at one end of the main body (401).
2. A waterproof elastic expansion joint according to claim 1, characterized in that: The two baffles (502) are respectively fixedly arranged on opposite sides of the two road surfaces (3), and a high-strength rubber (504) is connected between the two baffles (502).
3. The waterproof elastic expansion joint according to claim 1, characterized in that: The upper ends of the first waterproof module (1), the second waterproof module (2) and the third waterproof module (4) are all fixedly provided with anti-slip grooves (6).
4. The waterproof elastic expansion joint according to claim 1, characterized in that: The first waterproof module (1), the second waterproof module (2) and the third waterproof module (4) are all slidably arranged in the middle of the expansion joint body (5) and fixed by bolts (12), and a rubber ring (11) is fixed in the middle of the nut of the bolt (12).
5. The waterproof elastic expansion joint according to claim 1, characterized in that: Fixed plates (503) are fixedly provided at both ends of the opposite side of the two baffles (502), and a plurality of the first waterproof modules (1) are provided.
6. The waterproof elastic expansion joint according to claim 1, characterized in that: The second waterproof module (2) comprises a second supporting layer (203), a second shock absorbing layer (202) is fixedly arranged on the upper end of the second supporting layer (203), and a second waterproof layer (201) is fixedly arranged on the upper end of the second shock absorbing layer (202).
7. The waterproof elastic expansion joint according to claim 1, characterized in that: Water baffles (8) are fixedly provided on both sides of the second waterproof module (2) and the plurality of first waterproof modules (1), and the plurality of water baffles (8) are each provided with two disassembly holes (9) extending through them.