Bridge hinged support anti-seismic expansion joint device

Abstract

The utility model relates to the technical field of contraction joints, and discloses a bridge hinge support anti-seismic expansion joint device which comprises two bridge bodies, sleeper beams are installed in the middles of the two bridge bodies, arc angles are arranged at one ends of the two sleeper beams, bottom plates are rotationally connected to the middles of the two sleeper beams, round protrusions are arranged at one ends of the two bottom plates, and the round protrusions are connected with the bottom plates in a rotating mode. The two bottom plates are provided with circular protrusions, the circular protrusions are connected with the arc angles in a clamped mode, limiting spring plates are installed between the two bottom plates and the two sleeper beams, the tops of the two bottom plates are fixedly connected with comb plates, and the tops of the two sets of comb plates are provided with first anti-skid lines. According to the anti-skid comb plate, under the action of the wave-shaped anti-skid grains I, the friction coefficient of the contact surfaces of tires, pedestrian soles and the comb plate is increased, so that slip accidents are avoided, meanwhile, the anti-skid grains I are communicated with the anti-skid grains II, so that water is guided cooperatively, and the situation that silt is deposited in the anti-skid grains I to cause anti-skid failure is avoided.

Description

Technical Field

[0001] This utility model relates to the field of expansion joint technology, and in particular to a bridge hinged seismic expansion joint device. Background Technology

[0002] With the acceleration of urbanization and the increasing complexity of transportation networks, bridges are experiencing increasingly complex traffic loads and environmental factors. Especially in earthquake-prone areas, bridges not only need to withstand conventional traffic loads but also must be able to cope with seismic wave transmission and structural displacement caused by earthquakes. Therefore, the design and installation of seismic-resistant expansion joint devices has become a crucial aspect of bridge seismic design. The key function of this device is to ensure the structural integrity of the bridge during an earthquake by using reasonable expansion and contraction amounts and seismic energy dissipation methods, thus preventing catastrophic damage such as bridge fractures and displacements.

[0003] Traditional bridge hinged seismic expansion joint devices typically consist of a bolster beam, crossbeam, comb plate, and elastic rubber. The rubber's elasticity absorbs and transmits vibrations, preventing damage to the bridge. The comb plate ensures the device doesn't misalign or separate during vertical fluctuations. However, in practical use, the smooth surface of the comb plate makes it prone to friction loss when vehicles or pedestrians cross it due to rain, snow, or dust, increasing the risk of accidents. Therefore, a bridge hinged seismic expansion joint device is proposed to address these issues. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a bridge hinged seismic expansion joint device, which aims to improve the problem in the prior art that vehicles and pedestrians are prone to slipping accidents due to the low friction between the vehicle and the comb plate in rainy or snowy weather.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bridge hinged seismic expansion joint device includes two bridge bodies. Each bridge body has a sleeper beam installed in its middle. One end of each sleeper beam has an arc angle. A base plate is rotatably connected to the middle of each sleeper beam. One end of each base plate has a circular protrusion that engages with the arc angle. A limit spring plate is installed between each base plate and each sleeper beam. A comb plate is fixedly connected to the top of each base plate. The top of each set of comb plates has a first anti-slip pattern and a second anti-slip pattern, which are connected to each other.

[0007] As a further description of the above technical solution:

[0008] Two rubber pads are installed between the two sets of comb plates and the two bolster beams. A locking block 1 is fixedly connected to the opposite side of the two sets of comb plates, and a locking block 2 is fixedly connected to the opposite side of the two bolster beams. The rubber pads have slots on both the left and right sides, and the locking block 1 and the locking block 2 are respectively locked in the middle of the two slots.

[0009] As a further description of the above technical solution:

[0010] Both of the base plates have through slots in the middle.

[0011] As a further description of the above technical solution:

[0012] A support plate is fixedly connected to the middle of each of the two bridge bodies, and a retaining spring is snapped into the top of the support plate. A waterstop is installed between the support plate and the retaining spring.

[0013] As a further description of the above technical solution:

[0014] Both base plates are fixedly connected to the bottom with support rods;

[0015] As a further description of the above technical solution:

[0016] The top of both sets of comb plates is provided with anti-slip texture three, which is connected to anti-slip texture one and anti-slip texture two respectively;

[0017] As a further description of the above technical solution:

[0018] The two sets of comb plates are interlaced;

[0019] As a further description of the above technical solution:

[0020] The anti-slip texture is wavy.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the friction coefficient of the contact surface between the tire and the pedestrian's shoe sole and the comb plate is increased by the action of the first wave-shaped anti-slip pattern, thereby avoiding slipping accidents. At the same time, the first anti-slip pattern and the second anti-slip pattern are connected to each other, thereby cooperating to guide water and prevent mud and sand from accumulating in the first anti-slip pattern, which would cause the anti-slip to fail.

[0023] 2. In this utility model, the gap between the comb plate and the pillow beam can be filled by the first and second locking blocks, thereby preventing rainwater and mud from falling directly onto the limiting spring plate, preventing the limiting spring plate from being corroded by rainwater and mud, and improving the service life of the limiting spring plate. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the bridge hinged seismic expansion joint device proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of the base plate of the bridge hinged seismic expansion joint device proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the comb plate of the bridge hinged seismic expansion joint device proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the sleeper beam of the bridge hinged seismic expansion joint device proposed in this utility model.

[0028] Figure 5 This is a schematic diagram of the structure of the rubber pad of the bridge hinged seismic expansion joint device proposed in this utility model.

[0029] Figure 6 This is a schematic diagram of the waterstop strip of the bridge hinged seismic expansion joint device proposed in this utility model.

[0030] Legend:

[0031] 1. Bridge body; 2. Sleeper beam; 3. Base plate; 4. Through groove; 5. Waterstop strip; 6. Rubber pad; 7. Comb plate; 8. Limiting spring plate; 9. Snap ring; 10. Anti-slip pattern one; 11. Anti-slip pattern two; 12. Anti-slip pattern three; 13. Locking block one; 14. Arc angle; 15. Circular protrusion; 16. Support rod; 17. Locking groove; 18. Support plate; 19. Locking block two. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 2 and Figure 4An embodiment of this utility model provides a bridge hinged seismic expansion joint device, comprising two bridge bodies 1, each bridge body 1 having a bolster beam 2 installed in the middle, each bolster beam 2 having an arc angle 14 at one end, each bolster beam 2 having a base plate 3 rotatably connected in the middle, each base plate 3 having a circular protrusion 15 at one end, the circular protrusion 15 engaging with the arc angle 14, each base plate 3 having a limit spring plate 8 installed between the two base plates 3 and the two bolster beams 2, and each base plate 3 having a comb plate 7 fixedly connected to its top. Firstly, multiple sets of comb plates 7 can be added according to the width of the bridge. Two sets of comb plates 7 are cross-overlaid on two base plates 3 to improve the stability and load-bearing strength of the two base plates 3. At the same time, the gap between the staggered comb plates 7 and the sleeper beam 2 can be filled with TST expansion material. When the expansion joint widens, the two sets of comb plates 7 move relative to each other, making the TST expansion material thicker. When the expansion joint narrows, the two sets of comb plates 7 move towards each other, squeezing the TST expansion material to thin it out, so as to ensure the flatness of the bridge surface and avoid bumps caused by vehicles passing over it. When one set of comb plates 7 is damaged, the corresponding limiting spring plate 8 can be removed so that the circular protrusion 15 is no longer squeezed, and thus separated at an arc angle 14, so as to replace the single set of comb plates 7.

[0034] Reference Figure 3 Both sets of comb plates 7 have anti-slip ridges 10 and 21 on their tops, respectively. Anti-slip ridges 10 and 21 are connected. Anti-slip ridges 3 and 12 are also provided on the top of both sets of comb plates 7, and are connected to both 10 and 21. The two sets of comb plates 7 are staggered. The anti-slip ridges 10 increase the coefficient of friction between the tires / pedestrian shoes and the comb plates 7 in rainy and snowy conditions. The wavy anti-slip ridges 10 also enhance multi-directional anti-slip performance, preventing slippage accidents. Furthermore, the connection between anti-slip ridges 10 and 21 facilitates water drainage, and the 32 further increases the drainage speed of anti-slip ridges 10, preventing the accumulation of mud and sand within them and thus preventing anti-slip failure.

[0035] Reference Figure 4 and Figure 5Two rubber pads 6 are installed between each of the two sets of comb plates 7 and the two bolster beams 2. A locking block 13 is fixedly connected to the opposite side of each of the two sets of comb plates 7, and a locking block 29 is fixedly connected to the opposite side of each of the two bolster beams 2. Slots 17 are provided on both the left and right sides of the rubber pads 6, and locking blocks 13 and 29 are respectively engaged in the middle of the two slots 17. By inserting the rubber pads 6 between the comb plates 7 and the bolster beams 2, the rubber pads 6 fill the gaps between the comb plates 7, the TST expansion material, and the bolster beams 2, thereby preventing rainwater or moisture-containing mud and sand from falling onto the limiting spring plate 8 through the gaps. This prevents the limiting spring plate 8 from being corroded by water or worn by mud and sand over a long period, thus extending the service life of the limiting spring plate 8. Simultaneously, the locking blocks 13 and 29 enhance the stability of the rubber pads 6, preventing them from sagging due to vibration.

[0036] Reference Figure 1 , Figure 2 and Figure 6 Both base plates 3 have through grooves 4 in the middle, and both bridge bodies 1 are fixedly connected to support plates 18 in the middle. A retaining spring 9 is snapped onto the top of the support plate 18, and a waterstop 5 is installed between the support plate 18 and the retaining spring 9. The through grooves 4 allow water leakage between the comb plate 7 and the TST expansion joint material to drain, preventing water accumulation on the top of the base plate 3 and causing corrosion. Simultaneously, the support plates 18 allow the waterstop 5 to be installed between the two bridge bodies 1, preventing leaked water from flowing into the expansion joint and causing corrosion.

[0037] Reference Figure 4 Both base plates 3 are fixedly connected to the bottom with support rods 16. The support rods 16 can improve the structural strength of the base plates 3 and further enhance the load-bearing capacity of the base plates 3 and comb plates 7 on the vehicle.

[0038] Working principle: The wave-shaped anti-slip pattern 10 can improve the anti-slip effect in multiple directions, thereby preventing tires from slipping on the soles of pedestrians' shoes due to insufficient friction in rainy weather. At the same time, the connection between the anti-slip pattern 11 and the anti-slip pattern 3 allows rainwater in the anti-slip pattern 10 to be quickly discharged, preventing the accumulation of rainwater and sand that could lead to anti-slip failure.

[0039] The rubber pad 6 can fill the gap between the comb plate 7 and the pillow beam 2, thereby preventing rainwater and mud containing moisture from falling directly onto the limiting spring plate 8, preventing the limiting spring plate 8 from being corroded by moisture, and thus improving the service life of the limiting spring plate 8.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bridge hinged seismic expansion joint device, comprising two bridge bodies (1), characterized in that: Both bridge bodies (1) are equipped with bolster beams (2) in the middle. One end of each bolster beam (2) is provided with an arc corner (14). The middle of each bolster beam (2) is rotatably connected to a base plate (3). One end of each base plate (3) is provided with a circular protrusion (15). The circular protrusion (15) is engaged with the arc corner (14). Limiting spring plates (8) are installed between each base plate (3) and each bolster beam (2). Comb plates (7) are fixedly connected to the top of each base plate (3). Anti-slip texture one (10) is provided on the top of each of the two sets of comb plates (7). Anti-slip texture two (11) is provided on the top of each of the two sets of comb plates (7). Anti-slip texture one (10) and anti-slip texture two (11) are connected.

2. The bridge hinged seismic expansion joint device according to claim 1, characterized in that: Two rubber pads (6) are installed between the two sets of comb plates (7) and the two pillow beams (2). A locking block one (13) is fixedly connected to the opposite side of the two sets of comb plates (7), and a locking block two (19) is fixedly connected to the opposite side of the two pillow beams (2). The left and right sides of the rubber pads (6) are provided with slots (17). The locking block one (13) and the locking block two (19) are respectively locked in the middle of the two slots (17).

3. The bridge hinged seismic expansion joint device according to claim 1, characterized in that: Both of the base plates (3) have through grooves (4) in the middle.

4. The bridge hinged seismic expansion joint device according to claim 1, characterized in that: A support plate (18) is fixedly connected to the middle of each of the two bridge bodies (1). A retaining ring (9) is snapped onto the top of the support plate (18). A waterstop (5) is installed between the support plate (18) and the retaining ring (9).

5. The bridge hinged seismic expansion joint device according to claim 1, characterized in that: The bottom of both base plates (3) are fixedly connected with support rods (16).

6. The bridge hinged seismic expansion joint device according to claim 1, characterized in that: The top of both sets of comb plates (7) is provided with anti-slip texture three (12), which is connected to anti-slip texture one (10) and anti-slip texture two (11) respectively.

7. The bridge hinged seismic expansion joint device according to claim 1, characterized in that: The two sets of comb plates (7) are interlocked.

8. The bridge hinged seismic expansion joint device according to claim 1, characterized in that: The anti-slip texture 1 (10) is wavy.

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