Bridge expansion joint sealing structure facilitating maintenance

Abstract

The utility model discloses a bridge expansion joint sealing structure convenient for overhauling, including steel sheet, the steel sheet has two, two steel sheet bottom end both sides symmetry has fixed plate, fixed plate no less than two groups, install horizontal board no. Advantageous effect lies in: the utility model discloses the design of steel sheet, fixed plate, horizontal board no.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge expansion joint sealing structure, specifically to a bridge expansion joint sealing structure that is easy to inspect and maintain. Background Technology

[0002] To compensate for the thermal expansion and contraction of bridges, gaps are reserved between two road slabs during the construction process. To prevent water leakage or foreign objects from entering during use, certain structural components need to be installed at the expansion joint locations to achieve a sealing effect while fulfilling the function of the expansion joint.

[0003] Existing bridge expansion joint sealing structures, which are easy to maintain, transfer loads through rigid connections, use elastic supports for noise reduction and vibration damping, and employ mechanical seals for dust and water protection. While these methods can achieve the supporting effect of the device on the bridge expansion joint, the stress at both ends of the expansion joint will compress the two steel plates when the steel plates support the joint. Over a long period of operation, the accumulation of stress can easily cause the steel plates to move inward, resulting in displacement between the two steel plates. This leads to gaps in the device's support for the joint, resulting in poor support performance. Utility Model Content

[0004] (a) Technical problems to be solved The technical problem to be solved by this utility model is to provide a bridge expansion joint sealing structure that avoids displacement between steel plates and is easy to inspect, in light of the current state of the technology.

[0005] (II) Technical Solution This utility model is achieved through the following technical solution: This utility model proposes a bridge expansion joint sealing structure that is easy to maintain, including two steel plates. Two fixing plates are symmetrically arranged on both sides of the bottom end of the two steel plates. There are at least two sets of fixing plates. A horizontal plate one is installed on one side of the fixing plate, and a horizontal plate two is installed on the other side of the fixing plate. A groove is formed on the opposite side wall of the horizontal plate one and the horizontal plate two. A sliding rod is installed in the groove. A sliding plate one is installed at one end of the sliding rod, and a sliding plate two is installed at the other end of the sliding rod. A compression spring connects the sliding plate one and the sliding plate two. An elastic compression pad is provided at one end of each of the horizontal plate one and the horizontal plate two. An elastic rubber seat is arranged on the side of the elastic compression pad away from the horizontal plate one and the horizontal plate two. A retaining ring is arranged in the elastic rubber seat, and the retaining ring is filled with carbon black filler. Fluorosilicone rubber is installed on one side of the elastic rubber seat.

[0006] Furthermore, two symmetrically arranged embedding grooves are formed on the upper ends of the inner sidewalls of the two steel plates, and a rubber waterstop is installed between the embedding grooves. Anchor plates are symmetrically arranged on the bottom ends of the two outer sidewalls of the steel plates.

[0007] Furthermore, the embedding groove has an arc structure, and the rubber waterstop is connected to the embedding groove.

[0008] Furthermore, the anchor plate is a U-shaped steel reinforcement structure, and the anchor plate is welded to the steel plate.

[0009] Furthermore, the fixing plate is welded to the steel plate, the first horizontal plate is welded to the fixing plate located on one side, and the second horizontal plate is welded to the fixing plate located on the other side.

[0010] Furthermore, the slide bar is connected to the groove screw, and both the first slide plate and the second slide plate are slidably connected to the two slide bars.

[0011] Furthermore, the two ends of the compression spring are respectively screwed to the first slide plate and the second slide plate, the first slide plate on the first horizontal plate is screwed to the second slide plate on the second slide plate, and the second slide plate on the first horizontal plate is screwed to the first slide plate on the second slide plate.

[0012] Furthermore, the elastic rubber seat is bonded to the elastic extrusion pad, the carbon black filler is connected to the retaining ring groove, and the fluorosilicone rubber is bonded to the elastic rubber seat.

[0013] (III) Beneficial Effects Compared with the prior art, this utility model has the following advantages: Through the design of steel plates, fixing plates, and horizontal plates one and two, the steel plates are supported during installation, effectively ensuring the stability of the bottom ends of the two steel plates. Simultaneously, under the stress conditions of thermal expansion and contraction of the bridge, when the steel plates are squeezed at both ends of the expansion joint, the compression spring design effectively provides tensile buffering for the plates. Combined with the design of elastic rubber seats and carbon black fillers, the elastic compression pads effectively buffer one end of horizontal plates one and two. The fluorosilicone rubber design, with its superior swelling capacity and damping characteristics, achieves efficient force buffering, effectively preventing stress-induced displacement of the steel plates. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a bridge expansion joint sealing structure that is easy to inspect and maintain, as described in this utility model. Figure 2 This is a schematic diagram of the fixing plate in the bridge expansion joint sealing structure that is easy to inspect and maintain, as described in this utility model. Figure 3 This is a schematic diagram of the horizontal plate in the bridge expansion joint sealing structure that is easy to inspect and maintain, as described in this utility model.

[0015] The annotations in the attached figures are explained as follows: 1. Embedded groove; 2. Steel plate; 3. Rubber waterstop; 4. Anchor plate; 5. Horizontal plate one; 6. Horizontal plate two; 7. Fixing plate; 8. Elastic compression pad; 9. Elastic rubber seat; 10. Retaining ring; 11. Fluorosilicone rubber; 12. Compression spring; 13. Slide rod; 14. Groove; 15. Carbon black filler; 16. Slide plate one; 17. Slide plate two. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] like Figures 1-3 As shown, this embodiment of a bridge expansion joint sealing structure that is easy to maintain includes two steel plates 2. Two fixing plates 7 are symmetrically arranged on both sides of the bottom of the two steel plates 2. There are at least two sets of fixing plates 7. A horizontal plate 5 is installed on one side of the fixing plate 7, and a horizontal plate 6 is installed on the other side. A groove 14 is formed on the opposite side wall of the horizontal plate 5 and the horizontal plate 6. A sliding rod 13 is installed in the groove 14. A sliding plate 16 is installed at one end of the sliding rod 13, and a sliding plate 17 is installed at the other end. A compression spring 12 connects the sliding plate 16 and the sliding plate 17. An elastic compression pad 8 is provided at one end of both the horizontal plate 5 and the horizontal plate 6. An elastic rubber seat 9 is arranged on the side of the elastic compression pad 8 away from the horizontal plate 5 and the horizontal plate 6. A retaining ring 10 is arranged in the elastic rubber seat 9, and the retaining ring 10 is filled with carbon black. The filler 15 and the elastic rubber seat 9 are equipped with fluorosilicone rubber 11 on one side. Through the design of steel plate 2, fixing plate 7, horizontal plate 1 5 and horizontal plate 2 6, the steel plate 2 is supported in the gap between the steel plates 2 during installation, which effectively ensures the stability of the bottom ends of the two steel plates 2. At the same time, under the stress conditions of thermal expansion and contraction of the bridge, when the steel plates 2 are squeezed at both ends of the expansion joint, the design of the compression spring 12 can effectively realize the stretching buffer of the sliding plate 1 16 and sliding plate 2 17. In conjunction with the design of the elastic rubber seat 9 and carbon black filler 15, the elastic compression pad 8 can effectively buffer one end of horizontal plate 1 5 and horizontal plate 2 6. With the design of fluorosilicone rubber 11, it has excellent swelling capacity and certain damping and shock absorption characteristics, realizing efficient buffering of the force and effectively avoiding the displacement of steel plate 2 caused by stress.

[0018] like Figures 1-3As shown in this embodiment, two embedded grooves 1 are symmetrically opened on the upper end of the inner sidewalls of the two steel plates 2, and a rubber waterstop 3 is installed between the embedded grooves 1. Anchor plates 4 are symmetrically arranged on the bottom end of the two outer sidewalls of the steel plates 2.

[0019] like Figures 1-3 As shown, in this embodiment, the embedding groove 1 has an arc structure, and the rubber waterstop 3 is connected to the embedding groove 1 by a slot. The design of the embedding groove 1 can seal and fix both ends of the rubber waterstop 3, effectively preventing rainwater and other substances from seeping into the bottom of the device.

[0020] like Figures 1-3 As shown, in this embodiment, the anchor plate 4 is a U-shaped steel bar structure. The anchor plate 4 is welded to the steel plate 2. The design of the anchor plate 4 facilitates the welding of the device to the pre-embedded steel bars, effectively ensuring the stability of the device installation.

[0021] like Figures 1-3 As shown, in this embodiment, the fixing plate 7 is welded to the steel plate 2, the first horizontal plate 5 is welded to the fixing plate 7 located on one side, and the second horizontal plate 6 is welded to the fixing plate 7 located on the other side. The fixing plate 7 achieves the fixation of the first horizontal plate 5 and the second horizontal plate 6.

[0022] like Figures 1-3 As shown, in this embodiment, the slide bar 13 is screwed to the groove 14, and the slide plate 16 and the slide plate 17 are slidably connected to the two slide bars 13. The design of the slide bar 13 facilitates the small displacement of the slide plate 16 and the slide plate 17. Combined with the design of the compression spring 12, it can effectively buffer the force of the compression spring 12.

[0023] like Figures 1-3 As shown, in this embodiment, the two ends of the compression spring 12 are respectively screwed to the first slide plate 16 and the second slide plate 17. The first slide plate 16 on the first horizontal plate 5 is screwed to the second slide plate 17 on the second slide plate 17. The second slide plate 17 on the first horizontal plate 5 is screwed to the first slide plate 16 on the second slide plate 17. The design of the first slide plate 16 and the second slide plate 17 facilitates the synchronization of the operation of the compression spring 12 in the first horizontal plate 5 and the second horizontal plate 6.

[0024] like Figures 1-3 As shown, in this embodiment, the elastic rubber seat 9 is bonded to the elastic extrusion pad 8, the carbon black filler 15 is connected to the retaining ring 10 through a groove, and the fluorosilicone rubber 11 is bonded to the elastic rubber seat 9. The design of the elastic rubber seat 9 and the fluorosilicone rubber 11 inside the elastic extrusion pad 8 facilitates the effective absorption and buffering of stress when the ends of the horizontal plate 5 and the horizontal plate 6 are subjected to stress.

[0025] The specific implementation process of this embodiment is as follows: When using the device, it needs to be placed in the pre-embedded joint of the bridge. The anchor plate 4 on one side of the device is connected and welded to the pre-embedded steel bar in the pre-embedded groove. Welding can be done one at a time, and then the anchoring steel bar on the other side is welded in the same way. Then, the device needs to be poured and sealed with sealing tape so that the device can be stably installed in the expansion joint of the bridge. When the device is working for a long time, the expansion stress of the bridge will compress the steel plate 2, and the sliding plate 17 of the second horizontal plate 6 and the sliding plate 16 of the first horizontal plate 5 will slide. The movement of 13 stretches the compression spring 12, allowing it to buffer stress. Simultaneously, the compression of the elastic compression pad 8 by one end of the horizontal plate 5 and the horizontal plate 6 effectively achieves elastic buffering of the device against force. The design of the elastic rubber seat 9, combined with the retaining ring 10 and carbon black filler 15, effectively ensures the weather resistance and aging resistance of the rubber seat. Combined with the superior swelling capacity and damping shock absorption characteristics of the fluorosilicone rubber 11, it effectively ensures the buffering effect of the device against force. The design of the rubber waterstop 3 prevents rainwater from seeping downwards.

[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bridge expansion joint sealing structure that is easy to inspect and maintain, characterized in that: The steel plate (2) consists of two plates. Two fixing plates (7) are symmetrically arranged on both sides of the bottom end of the two steel plates (2). There are at least two sets of fixing plates (7). A horizontal plate (5) is installed on one side of the fixing plate (7), and a horizontal plate (6) is arranged on the other side of the fixing plate (7). A groove (14) is formed on the opposite side wall of the horizontal plate (5) and the horizontal plate (6). A sliding rod (13) is installed in the groove (14). A sliding plate (16) is installed at one end of the sliding rod (13). Another sliding plate (16) is installed in the sliding rod (13). A second sliding plate (17) is installed at one end. A compression spring (12) is connected between the first sliding plate (16) and the second sliding plate (17). An elastic compression pad (8) is provided at one end of the first horizontal plate (5) and the second horizontal plate (6). An elastic rubber seat (9) is provided on the side of the elastic compression pad (8) away from the first horizontal plate (5) and the second horizontal plate (6). A retaining ring (10) is provided in the elastic rubber seat (9). The retaining ring (10) is filled with carbon black filler (15). Fluorosilicone rubber (11) is installed on one side of the elastic rubber seat (9).

2. The bridge expansion joint sealing structure for easy maintenance according to claim 1, characterized in that: Two embedded grooves (1) are symmetrically opened on the upper end of the inner sidewalls of the two steel plates (2), and a rubber waterstop (3) is installed between the embedded grooves (1). Anchor plates (4) are symmetrically arranged on the bottom end of the two outer sidewalls of the steel plates (2).

3. The bridge expansion joint sealing structure for easy maintenance according to claim 2, characterized in that: The embedding groove (1) has an arc structure, and the rubber waterstop (3) is connected to the embedding groove (1) by a slot.

4. The bridge expansion joint sealing structure for easy maintenance according to claim 2, characterized in that: The anchor plate (4) is a U-shaped steel reinforcement structure, and the anchor plate (4) is welded to the steel plate (2).

5. A bridge expansion joint sealing structure for easy maintenance according to claim 1, characterized in that: The fixing plate (7) is welded to the steel plate (2), the first horizontal plate (5) is welded to the fixing plate (7) located on one side, and the second horizontal plate (6) is welded to the fixing plate (7) located on the other side.

6. The bridge expansion joint sealing structure for easy maintenance according to claim 1, characterized in that: The slide bar (13) is screwed to the groove (14), and the first slide plate (16) and the second slide plate (17) are slidably connected to the two slide bars (13).

7. The bridge expansion joint sealing structure for easy maintenance according to claim 1, characterized in that: The two ends of the compression spring (12) are respectively screwed to the first slide plate (16) and the second slide plate (17). The first slide plate (16) on the first horizontal plate (5) is screwed to the second slide plate (17) on the second slide plate (17). The second slide plate (17) on the first horizontal plate (5) is screwed to the first slide plate (16) on the second slide plate (17).

8. A bridge expansion joint sealing structure for easy maintenance according to claim 1, characterized in that: The elastic rubber seat (9) is bonded to the elastic extrusion pad (8), the carbon black filler (15) is connected to the retaining ring (10) through a groove, and the fluorosilicone rubber (11) is bonded to the elastic rubber seat (9).

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