Modularized road and bridge expansion joint device

Abstract

The utility model discloses a modularization road bridge expansion joint device, particularly relates to road bridge construction technical field, including expansion joint mechanism, bridge road body no. 1 and bridge road body no. 2, said bridge road body no. 1 and bridge road body no. And the rubber belt is lapped above the bridge road body I and the bridge road body II. The buffer assembly, the tooth block assembly and the release assembly are arranged, the up-down staggered special-shaped rubber blocks and a spring rod structure are adopted to absorb bridge road stretching energy, the buffer assembly is prevented from being broken, and the buffer performance is enhanced through cooperation of an embedded plate and a sliding plate; and meanwhile, a linkage mechanism of an air guide pipe and an air nozzle is combined, dust in an inserting block area is removed through compressed air in the stretching and retracting process, foreign matter is prevented from blocking a waterproof groove, the problem of deformation of a traditional elastic filter screen is effectively solved, and the sealing performance, durability and vehicle passing stability of the device are remarkably improved.

Description

Technical Field

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

[0002] Modular bridge and road expansion joint devices are high-performance solutions specifically designed for bridge and road expansion and contraction. Through the combination and installation of standard modules, they effectively adapt to expansion and contraction caused by temperature changes and loads on the structure, while maintaining excellent sealing and flatness. These devices are constructed from high-strength steel, weathering steel, or stainless steel, with some components using high-quality rubber products for waterproofing and sealing, ensuring long-term durability and reliability. They can be quickly assembled on-site without complex equipment and technology, significantly improving construction efficiency and shortening the construction period.

[0003] Patent CN215887904U discloses a modular bridge expansion joint structure, comprising a left bridge body, a right bridge body, an expansion joint, a small toothed plate, a large toothed plate, a fixing component, and a buffer component. The expansion joint is located between the left and right bridge bodies. The small toothed plate is located on the left bridge body, and the large toothed plate is located on the right bridge body. The large and small toothed plates are fitted together. The buffer component is located on the expansion joint, and the fixing component is located on both the left and right bridge bodies. This utility model belongs to the field of bridge engineering technology, specifically referring to a modular bridge expansion joint structure that utilizes a combination of large and small toothed plates to place the expansion joint under a steel plate. This prevents debris and soil from entering the expansion joint and clogging it, buffers the pressure on the expansion joint, reduces damage, increases its service life, and facilitates drainage and waterproofing.

[0004] The inventors have discovered at least the following problems in the prior art:

[0005] First, although the above-mentioned equipment can reduce the pressure on the expansion joint during vehicle travel by using the buffer component, the buffer component will break directly when the bridge and road expand and contract, and then it will no longer be able to buffer. When the vehicle passes over it again, it will not be able to buffer, and may even damage the expansion joint.

[0006] In addition, although the above-mentioned equipment can prevent garbage from entering the waterproof groove between the large and small toothed plates through the elastic filter, the elastic filter will be squeezed and deformed when the bridge expands and contracts, thus failing to block dust.

[0007] Therefore, the aforementioned technical problems need to be solved. Utility Model Content

[0008] To overcome the shortcomings of existing technologies, this utility model proposes a modular road and bridge expansion joint device. This device uses a buffer component and a toothed block component design to absorb expansion and contraction energy by using staggered irregularly shaped rubber blocks and spring rods to prevent breakage and enhance buffering. Combined with the air duct linkage air jet, air is sprayed to remove dust from the plug-in block during expansion and contraction, solving the problem of filter deformation and blockage, and significantly improving sealing performance, durability and traffic stability.

[0009] To solve the above-mentioned technical problems, the basic technical solution proposed by this utility model is as follows:

[0010] A modular road and bridge expansion joint device includes an expansion joint mechanism, a first bridge body, and a second bridge body, with an expansion joint between the first and second bridge bodies. The expansion joint mechanism contains a buffer assembly, and a rubber strip is positioned below it, resting on top of the first and second bridge bodies. The expansion joint mechanism includes a first steel plate, a second steel plate, a toothed block assembly, a release assembly, a first sliding plate, and a second sliding plate. The second steel plate is positioned above the first sliding plate, the first steel plate is positioned above the second sliding plate, and both sliding plates are positioned above the rubber strip. One end of the second steel plate, the first sliding plate, and the rubber strip is bolted to the first bridge body, and the other end of the first steel plate, the second sliding plate, and the rubber strip is bolted to the second bridge body. The toothed block assembly includes a receiving toothed block and a connecting block, with an air guide pipe inside the receiving toothed block and the connecting block.

[0011] The release assembly includes a guide rail and a sealing cap. The guide rail is fixedly connected to one side of the plug block, and the sealing cap is slidably connected between the two guide rails.

[0012] The buffer assembly includes multiple irregularly shaped rubber blocks that are interconnected vertically, with the irregularly shaped rubber blocks located between slide plate one and slide plate two.

[0013] Preferably, the toothed block assembly is evenly arranged between steel plate two and steel plate one, and they are interleaved with each other.

[0014] Preferably, the first steel plate and the second steel plate are provided with insertion grooves at the insertion block, and the upper end of the insertion groove is a cut surface, and a guide block is installed inside the insertion groove.

[0015] Preferably, one end of the air guide tube is an air inlet, and the other end is three parallel air jets. The air jets are located at the receiving tooth block, and the air inlet is located at one end of the plug block, and the air inlet fits the sealing cap.

[0016] Preferably, the sealing cover is provided with spring pieces at both the upper and lower ends, and the spring pieces are fixedly connected to the inside of the guide rail.

[0017] Preferably, a stop block is fixedly connected to one side of the sealing cover, and one end of the stop block is engaged with a guide block.

[0018] Preferably, the irregularly shaped rubber block has uniformly distributed grooves on its upper surface, and a spring rod is installed inside the grooves. A uniformly distributed insert is fixedly connected to one side of the first sliding plate, and the insert fits the upper surface of the second sliding plate.

[0019] The beneficial effects of this utility model are:

[0020] I. This utility model, through the setting of a buffer component, adopts multiple irregularly shaped rubber blocks connected in an alternating manner and a spring rod structure in the groove. It can absorb energy through elastic deformation during the expansion and contraction of the bridge body, avoiding the breakage of the buffer component due to expansion and contraction displacement. At the same time, the cooperative design of the insert plate and the sliding plate further enhances the buffer performance and ensures the stability of vehicles passing through.

[0021] II. This utility model, through the setting of toothed block assembly and release assembly, utilizes the linkage mechanism of air guide pipe, air jet and sealing cover to spray compressed air to remove dust in the waterproof groove above the plug block when the bridge expands and contracts, effectively preventing foreign objects from entering the waterproof groove, avoiding the clogging problem caused by compression deformation of traditional elastic filter screen, and improving the sealing and durability of the device. Attached Figure Description

[0022] Figure 1 This is an overall perspective view of Embodiment 1 of the present utility model;

[0023] Figure 2 This is a schematic diagram of the overall separate structure of Embodiment 1 of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the buffer assembly according to Embodiment 1 of this utility model;

[0025] Figure 4 This is an embodiment of the present utility model. Figure 2 A schematic diagram of the middle section;

[0026] Figure 5 This is a schematic diagram of the tooth block assembly and release assembly according to Embodiment 1 of this utility model;

[0027] Figure 6 This is an embodiment of the present utility model. Figure 5 Enlarged view of section A.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Expansion joint mechanism; 11. Steel plate one; 12. Steel plate two; 13. Insertion groove; 14. Guide block;

[0030] 15. Tooth block assembly; 151. Receiving tooth block; 152. Insert block; 153. Air guide pipe; 154. Air inlet; 155. Air jet nozzle;

[0031] 16. Release assembly; 161. Guide rail; 162. Sealing cap; 163. Abutment; 164. Spring clip;

[0032] 17. Skateboard 1; 18. Plyboard; 19. Skateboard 2;

[0033] 2. Bridge and road body one; 3. Bridge and road body two; 4. Expansion joint;

[0034] 5. Buffer assembly; 51. Irregularly shaped rubber block; 52. Groove; 53. Spring rod;

[0035] 6. Rubber belt. Detailed Implementation

[0036] The following will be combined with the appendix Figure 1 To be continued Figure 6 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0037] It should be noted that, in the embodiments of this utility model, the directions shown in the accompanying drawings shall prevail, such as front and back. Figure 1 For the sake of accuracy, the specific details should be as follows: Figure 1 The left side is the front. Figure 1 The right side is the rear; at the same time, as Figure 2 As shown, the horizontal direction is roughly defined as left and right, and the vertical direction is defined as up and down. If a specific orientation changes, the directional indication will also change accordingly.

[0038] This utility model provides a modular road and bridge expansion joint device, including an expansion joint mechanism 1, a first bridge body 2 and a second bridge body 3, an expansion joint 4 between the first bridge body 2 and the second bridge body 3, a buffer component 5 is provided inside the expansion joint mechanism 1, and a rubber belt 6 is provided below the expansion joint mechanism 1, with the rubber belt 6 resting on the top of the first bridge body 2 and the second bridge body 3.

[0039] The expansion joint mechanism 1 includes a steel plate 11, a steel plate 12, a toothed block assembly 15, a release assembly 16, a sliding plate 17, and a sliding plate 19. The steel plate 12 is located above the sliding plate 17, the steel plate 11 is located above the sliding plate 19, and the sliding plates 17 and 19 are located above the rubber belt 6. One end of the steel plate 12, the sliding plate 17, and the rubber belt 6 is connected to the bridge body 2 by bolts, and the other end of the steel plate 11, the sliding plate 19, and the rubber belt 6 is connected to the bridge body 3 by bolts.

[0040] The tooth block assembly 15 includes a receiving tooth block 151 and a plug block 152, and an air guide tube 153 is provided inside the receiving tooth block 151 and the plug block 152.

[0041] The release assembly 16 includes a guide rail 161 and a sealing cap 162. The guide rail 161 is fixedly connected to one side of the plug block 152, and the sealing cap 162 is slidably connected between the two guide rails 161.

[0042] The buffer assembly 5 includes a plurality of irregularly shaped rubber blocks 51 that are connected vertically to each other, and the irregularly shaped rubber blocks 51 are located between the first slide plate 17 and the second slide plate 19;

[0043] Bridge body 1 (2) and bridge body 2 (3) are two road bridges in the prior art, and the attached drawings are all small sections of expansion joints for easy display.

[0044] In a further embodiment, the toothed block assembly 15 is evenly arranged between steel plate 2 12 and steel plate 11, and is interleaved with each other.

[0045] In this embodiment, toothed block assemblies 15 are fixedly connected between steel plate 11 and steel plate 12. The toothed block assemblies 15 are staggered. It can be understood that the steel plate 11 and steel plate 12 are toothed with their respective toothed block assemblies 15, and the teeth are staggered. The area above the plug block 152 is a waterproof groove.

[0046] In a further embodiment, steel plate 11 and steel plate 2 are provided with insertion slots 13 at the insertion block 152, and the upper end of the insertion slot 13 is a cut surface, and a guide block 14 is installed inside the insertion slot 13.

[0047] In this embodiment, the insertion slot 13 is used to facilitate the insertion of the insertion block 152. One end of the insertion block 152 has a rubber pad, so the air inside the insertion slot 13 can be squeezed during the insertion process.

[0048] In a further embodiment, one end of the air duct 153 is an air inlet 154, and the other end is three parallel jet nozzles 155. The jet nozzles 155 are located at the receiving tooth block 151, and the air inlet 154 is located at one end of the plug block 152, and the air inlet 154 fits the sealing cap 162.

[0049] In this embodiment, the receiving tooth block 151 is provided with three rectangular slots above one end of the insertion block 152. The rectangular slots are equipped with protective nets to prevent dust from entering the interior of the air guide pipe 153.

[0050] In a further embodiment, the upper and lower ends of the sealing cover 162 are provided with spring pieces 164, and the spring pieces 164 are fixedly connected to the inside of the guide rail 161.

[0051] In this embodiment, the guide rail 161 is a frame-shaped guide rail, which allows the sealing cover 162 to move left and right, while the spring piece 164 is used to actively close the air inlet 154 when the sealing cover 162 is away from the guide block 14.

[0052] In a further embodiment, a stop block 163 is fixedly connected to one side of the sealing cap 162, and one end of the stop block 163 is engaged with the guide block 14.

[0053] In this embodiment, both the abutment block 163 and the guide block 14 have inclined surfaces, and the inclined surfaces fit together. Therefore, when the abutment block 163 moves to the guide block 14, the air inlet 154 will be forced to open.

[0054] In a further embodiment, the upper part of the irregular rubber block 51 is provided with uniformly distributed grooves 52, and a spring rod 53 is installed inside the grooves 52. A uniformly distributed insert plate 18 is fixedly connected to one side of the slide plate 17, and the insert plate 18 fits the upper part of the slide plate 19.

[0055] In this embodiment, the irregular rubber block 51 is U-shaped, so it can be interlocked with each other. The two ends of the spring rod 53 are respectively attached to the sliding plate 17 and the sliding plate 2 19. The sliding plate 2 19 has a recessed platform on one side, and a groove for inserting the panel 18 is provided above the recessed platform, similar to the insertion method of the steel plate 11 and the steel plate 2 12 through the toothed block assembly 15. Therefore, when the bridge body 1 2 and the bridge body 2 3 come close to each other, the irregular rubber block 51 and the spring rod 53 will deform and will not break. The spring rod 53 can also absorb energy and buffer when it is subjected to pressure from above.

[0056] The working principle of this utility model is as follows:

[0057] When bridge body 1 2 and bridge body 2 3 move closer together due to thermal expansion and contraction caused by temperature changes, bridge body 1 2, sliding plate 1 17 and steel plate 2 12 move together, and bridge body 2 3, sliding plate 2 19 and steel plate 1 11 move together. During this process, the tooth block assembly 15 will be compressed, and the tooth block assemblies 15 between steel plate 1 11 and steel plate 2 12 will also move in an alternating manner.

[0058] When the toothed block assembly 15 is displaced, the plug block 152 will be inserted into the inside of the plug slot 13, and then the air inside the plug slot 13 will begin to be compressed. As it continues to approach, one end of the stop block 163 will come into contact with the guide block 14 inside the plug slot 13, and the stop block 163 will be forced to displace, thereby opening the air inlet 154. At this time, the compressed gas will quickly enter the inside of the air guide pipe 153 and be ejected from the jet nozzle 155, blowing away dust and other objects above the plug block 152. This can prevent dust from entering the waterproof groove and prevent the vehicle from being affected when the bridge expands or contracts.

[0059] During the compression of the buffer component 5, multiple interlocking irregular rubber blocks 51 will deform, and the spring rod 53 in the groove 52 will also deform synchronously. When subjected to downward pressure from above, the buffer component 5 is located above the panel 18, thus providing cushioning. This allows the buffer component 5 to adapt to the expansion and contraction of the road and bridge, and also has a cushioning capacity.

[0060] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A modular bridge expansion joint device comprising an expansion joint mechanism (1), a bridge body one (2) and a bridge body two (3), characterized in that, The expansion joint mechanism (1) is internally provided with a buffer assembly (5), and the lower part of the expansion joint mechanism (1) is provided with a rubber belt (6) which is arranged above the bridge body one (2) and the bridge body two (3). The expansion joint mechanism (1) comprises a steel plate one (11), a steel plate two (12), a tooth block assembly (15), a release assembly (16), a sliding plate one (17) and a sliding plate two (19), the steel plate two (12) is arranged above the sliding plate one (17), the steel plate one (11) is arranged above the sliding plate two (19), the sliding plate one (17) and the sliding plate two (19) are arranged above the rubber belt (6), one end of the steel plate two (12), the sliding plate one (17) and the rubber belt (6) is connected with the bridge body one (2) through bolts, the other end of the steel plate one (11), the sliding plate two (19) and the rubber belt (6) is connected with the bridge body two (3) through bolts. The tooth block assembly (15) comprises a receiving tooth block (151) and a plug-in block (152), and the receiving tooth block (151) and the plug-in block (152) are internally provided with an air guide pipe (153). The release assembly (16) comprises a guide rail (161) and a blocking cover (162), the guide rail (161) is fixedly connected to one side of the plug-in block (152), and the blocking cover (162) is slidably connected between the two guide rails (161). The buffer assembly (5) comprises a plurality of profiled rubber blocks (51) which are connected in an up-and-down staggered manner, and the profiled rubber blocks (51) are arranged between the sliding plate one (17) and the sliding plate two (19).

2. The modular bridge expansion joint of claim 1, wherein: The tooth block assembly (15) is arranged between the steel plate two (12) and the steel plate one (11) in a uniform manner and is staggered with each other.

3. The modular bridge expansion joint of claim 1, wherein: The steel plate one (11) and the steel plate two (12) are provided with a plug-in groove (13) at the plug-in block (152), the upper end of the plug-in groove (13) is a cutting surface, and a guide block (14) is arranged in the plug-in groove (13).

4. The modular bridge expansion joint of claim 1, wherein: One end of the air guide pipe (153) is an air inlet (154), the other end is three air outlets (155) arranged in parallel, the air outlet (155) is arranged at the receiving tooth block (151), and the air inlet (154) is arranged at one end of the plug-in block (152) and matches the blocking cover (162).

5. The modular bridge expansion joint of claim 1, wherein: The blocking cover (162) is provided with elastic sheets (164) at the upper end and the lower end, and the elastic sheets (164) are fixedly connected in the guide rail (161).

6. The modular bridge expansion joint of claim 1, wherein: One side of the blocking cover (162) is fixedly connected with an abutting block (163), and one end of the abutting block (163) matches the guide block (14).

7. The modular bridge expansion joint of claim 1, wherein: The profiled rubber block (51) is provided with recesses (52) arranged in a uniform manner above the profiled rubber block (51), the recesses (52) are internally provided with spring rods (53), one side of the sliding plate one (17) is fixedly connected with embedded plates (18) arranged in a uniform manner, and the embedded plates (18) match the upper part of the sliding plate two (19).

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