Compression-resistant reinforced waterproof expansion joint fastening device
By introducing components such as elastic baffles, waterproof pads and reinforced steel plates into the expansion joints, the problems of insufficient buffering and compressive resistance and structural strength are solved, and better impact protection and service life are achieved, while maintaining waterproof and dustproof function. .
Patent Information
- Application Number
- CN202420795199.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The existing expansion joints have shortcomings in buffering and compressive resistance and structural strength, resulting in short service life and susceptible to vehicle crushing impact.
A compressive reinforced type fastening and waterproof expansion joint device is designed, including elastic baffle, waterproof pad, cushioning base pad, support mechanism and reinforced steel plate. The impact potential energy is attenuated by the elastic steel plate and damper to improve the compressive cushioning ability. And strengthen structural strength by strengthening steel plates and mounting bolts.
Effectively buffer impact force, extend service life, and improve the overall compressive resistance and structural strength of the expansion joints to prevent rainwater and dust from seeping in.
Smart Images

Figure CN222161612U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of expansion joints, in particular to a compression-resistant and reinforced fastening and waterproof expansion joint device. Background Art
[0002] An expansion joint refers 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 temperature changes (thermal expansion and contraction).
[0003] After searching, the patent number is CN217203615U, and the name is a utility model of a double waterproof and dustproof bridge expansion joint, including side steel beams, and the number of the side steel beams is two. Through research and analysis, it is found that although the problem that the existing bridge expansion joints do not have the function of double waterproof and dustproof protection, making the rubber filler susceptible to friction damage from moving vehicles, and at the same time, when the rubber filler is accidentally damaged, secondary waterproof protection cannot be performed, which reduces the practicality of the bridge expansion joint, but to a certain extent, the following defects still exist.
[0004] For example, the buffering and compressive resistance is poor, and the above expansion joint does not have a buffering function. In this way, it is frequently rolled over by vehicles during long-term use, and the kinetic energy generated frequently impacts the expansion joint structure and cannot effectively provide buffering protection, which will affect its service life and has poor strength. In order to solve the above technical problems, we have designed a compression-resistant reinforced fastening and waterproof expansion joint device. Utility Model Content
[0005] The purpose of the utility model is to provide a compression-resistant reinforced fastening waterproof expansion joint device, which has the advantages of improving the buffering compression resistance, effectively offsetting the impact force, and extending the service life of the structure. At the same time, it has the advantages of higher structural strength, solving the problems of poor buffering compression resistance, affecting the service life of the structure, and poor structural strength.
[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a pressure-resistant reinforced fastening waterproof expansion joint device, comprising a first base surface and a second base surface, an elastic baffle is fixedly connected between the first base surface and the second base surface, an upper mounting groove and a lower mounting groove are opened on the inner sides of the first base surface and the second base surface, the side walls and the bottom of the inner cavity of the upper mounting groove are respectively fixedly connected with a first elastic side plate and a buffer bottom pad, the side walls of the inner cavity of the lower mounting groove are fixedly connected with a second elastic side plate, the bottom of the inner cavity of the lower mounting groove is glued and laid with a waterproof cushion, and the top of the waterproof cushion is fixedly connected with a support mechanism.
[0007] Preferably, the supporting mechanism comprises a reinforcing steel plate, and elastic steel plates and dampers are fixedly connected to the left and right sides of the top of the reinforcing steel plate, and a top cover plate is fixedly connected to the top of the elastic steel plate and the damper.
[0008] Preferably, through holes are provided on both left and right sides of the top of the reinforcing steel plate, and protective shrapnel is welded to the outer sides of the left and right top cover plates.
[0009] Preferably, an elastic partition is fixedly connected to the middle of the top of the reinforcing steel plate, and the top of the elastic partition passes through to the top of the top cover plate.
[0010] Preferably, a mounting bolt is fixedly connected to the rear side of the bottom of the inner cavity of the lower mounting groove, and the top of the mounting bolt passes through the waterproof cushion and the supporting mechanism in sequence.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] The generated impact potential energy causes the top cover plate to move downward to compress the elastic steel plate below. The elastic steel plate during the compression process can attenuate the impact potential energy, reduce the impact force acting on the expansion joint, provide buffering protection for the expansion joint, improve the overall compressive buffering capacity, and extend the service life. At the same time, a reinforcing steel plate is arranged at the bottom of the inner cavity of the lower installation groove to improve the overall strength of the bottom of the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is an axonometric drawing of the structure of the utility model;
[0014] Figure 2 It is a rear axonometric view of the support mechanism of the utility model;
[0015] Figure 3 It is the main axonometric view of the local structure of the utility model;
[0016] Figure 4 It is a rear axonometric view of the structure of the utility model;
[0017] Figure 5 It is an axonometric view of the first base surface of the utility model.
[0018] In the figure: 1. first base surface; 2. second base surface; 3. second elastic side panel; 4. elastic baffle; 5. waterproof cushion; 6. buffer bottom pad; 7. first elastic side panel; 8. supporting mechanism; 9. elastic partition; 10. protective spring sheet; 11. top cover plate; 12. damper; 13. elastic steel plate; 14. through hole; 15. reinforcing steel plate; 16. mounting bolt; 17. upper mounting groove; 18. lower mounting groove. DETAILED DESCRIPTION
[0019] See also Figure 1-Figure 5, a compression-resistant reinforced fastening waterproof expansion joint device, comprising a first base surface 1 and a second base surface 2, an elastic baffle 4 is fixedly connected between the first base surface 1 and the second base surface 2, an upper mounting groove 17 and a lower mounting groove 18 are opened on the inner sides of the first base surface 1 and the second base surface 2, the side wall and the bottom of the inner cavity of the upper mounting groove 17 are respectively fixedly connected with a first elastic side plate 7 and a buffer bottom pad 6, the side wall of the inner cavity of the lower mounting groove 18 is fixedly connected with a second elastic side plate 3, the bottom of the inner cavity of the lower mounting groove 18 is glued and laid with a waterproof cushion 5, and the top of the waterproof cushion 5 is fixedly connected with a supporting mechanism 8, by arranging the waterproof cushion 5, it has a waterproof function, can prevent the upper rainwater from leaking into the interior, and can discharge the rainwater, by arranging the buffer bottom pad 6, can buffer and support the top cover plate 11, by arranging the first elastic side plate 7 and the second elastic side plate 3, it has a function of improving the sealing performance, can make the expansion joint structure contact with the upper mounting groove 17 and the lower mounting groove 18 more closely, and prevent rainwater and dust from entering the interior;
[0020] See also Figure 2 The support mechanism 8 includes a reinforcing steel plate 15, and the left and right sides of the top of the reinforcing steel plate 15 are fixedly connected with an elastic steel plate 13 and a damper 12, and the top of the elastic steel plate 13 and the damper 12 is fixedly connected with a top cover plate 11. By setting the damper 12, the damping function is provided, and the vibration generated by the impact can be quickly attenuated to increase the damping and consume the impact potential energy, and the buffering effect is better;
[0021] See also Figure 2 The left and right sides of the top of the reinforcing steel plate 15 are provided with through holes 14, and the outer sides of the left and right top cover plates 11 are welded with protective springs 10. By providing the protective springs 10, the functions of dustproof and waterproof are achieved, and the protective springs 10 can be installed above the first elastic side plate 7 to prevent the dirt and rainwater on the road from entering the expansion joint;
[0022] See also Figure 2 The middle part of the top of the reinforcing steel plate 15 is fixedly connected with an elastic partition 9, and the top of the elastic partition 9 penetrates to the top of the top cover plate 11. By setting the elastic partition 9, it has the function of extrusion deformation, and can make the top cover plates 11 on both sides move relative to each other;
[0023] See also Figure 3 The rear side of the bottom of the inner cavity of the lower mounting groove 18 is fixedly connected with a mounting bolt 16, and the top of the mounting bolt 16 passes through the waterproof cushion 5 and the supporting mechanism 8 in sequence.
[0024] When in use, personnel use tools to groove the upper mounting groove 17 and the lower mounting groove 18 on the first base surface 1 and the second base surface 2, and then grind them flat, install and fix the elastic baffle 4 between the first base surface 1 and the second base surface 2, fix the mounting bolts 16 on the front and back sides of the bottom of the inner cavity of the lower mounting groove 18, then apply glue to the bottom of the inner cavity of the lower mounting groove 18, lay the waterproof cushion 5 on it and compact it, and fix the second elastic side plate 3 and the first elastic side plate 7 to the side walls of the lower mounting groove 18 and the upper mounting groove 17, fix the buffer bottom pad 6 to the bottom of the inner cavity of the upper mounting groove 17, place the bottom of the support mechanism 8 into the inner cavity of the lower mounting groove 18, and then The mounting bolts 16 pass through the through holes 14 and tighten the nuts to fix the reinforcing steel plate 15 in the inner cavity of the lower mounting groove 18. At the same time, the bottom of the top cover plate 11 contacts the buffer bottom pad 6, and the elastic partition plate 9 is installed between the two top cover plates 11. In this way, the expansion joint is installed. When the vehicle rolls over from above, the impact potential energy generated causes the top cover plate 11 to move downward to compress the elastic steel plate 13 below. During the compression process, the elastic steel plate 13 can attenuate the impact potential energy, thereby providing buffer protection for the expansion joint, improving the overall compressive buffering capacity, and extending the service life. At the same time, a reinforcing steel plate 15 is arranged at the bottom of the inner cavity of the lower mounting groove 18 to improve the overall strength of the bottom of the expansion joint.
[0025] To sum up: the pressure-resistant reinforced fastening waterproof expansion joint device solves the problems of poor buffering pressure resistance, affecting the service life of the structure, and poor structural strength through the coordinated use of the second elastic side plate 3, the elastic baffle plate 4, the waterproof cushion 5, the buffer base pad 6, the first elastic side plate 7, the supporting mechanism 8 and the elastic partition plate 9.
Claims
1. A compression-resistant reinforced fastening and waterproof expansion joint device, comprising a first base surface (1) and a second base surface (2), Features: An elastic baffle (4) is fixedly connected between the first base surface (1) and the second base surface (2); an upper mounting groove (17) and a lower mounting groove (18) are provided on the inner sides of the first base surface (1) and the second base surface (2); the side wall and the bottom of the inner cavity of the upper mounting groove (17) are respectively fixedly connected with a first elastic side plate (7) and a buffer bottom pad (6); the side wall of the inner cavity of the lower mounting groove (18) is fixedly connected with a second elastic side plate (3); a waterproof cushion (5) is glued and laid on the bottom of the inner cavity of the lower mounting groove (18); and a support mechanism (8) is fixedly connected to the top of the waterproof cushion (5).
2. A compression-resistant and reinforced fastening and waterproof expansion joint device according to claim 1, Features: The support mechanism (8) comprises a reinforcing steel plate (15), the left and right sides of the top of the reinforcing steel plate (15) are fixedly connected to an elastic steel plate (13) and a damper (12), and the tops of the elastic steel plate (13) and the damper (12) are fixedly connected to a top cover plate (11).
3. A compression-resistant and reinforced waterproof expansion joint device according to claim 2, Features: The left and right sides of the top of the reinforcing steel plate (15) are both provided with through holes (14), and the outer sides of the left and right top cover plates (11) are both welded with protective spring sheets (10).
4. A compression-resistant and reinforced fastening and waterproof expansion joint device according to claim 2, Features: An elastic partition plate (9) is fixedly connected to the middle of the top of the reinforcing steel plate (15), and the top of the elastic partition plate (9) penetrates to the top of the top cover plate (11).
5. A compression-resistant and reinforced fastening and waterproof expansion joint device according to claim 1, Features: A mounting bolt (16) is fixedly connected to the rear side of the bottom of the inner cavity of the lower mounting groove (18), and the top of the mounting bolt (16) passes through the waterproof cushion (5) and the supporting mechanism (8) in sequence.
