A sealing structure for a bridge waterproof expansion joint

Abstract

This application provides a sealing structure for a bridge waterproof expansion joint device, relating to the field of bridge waterproofing technology. It includes a bridge expansion joint mounting plate, on the outer side of which a fixed frame is fixedly installed. A buffer moving frame is mounted inside a limiting groove via a first spring. During vehicle operation, the first spring, damper, and second spring provide buffer support for the buffer moving frame and the supporting water guide plate, preventing the supporting water guide plate from deforming or being damaged due to excessive weight. Depending on the size of the expansion joint, a rubber expansion pad can be inserted into the connecting groove for expansion, facilitating the sealing connection of multiple prefabricated components for expansion joints of different sizes. After expansion, the rubber expansion pad abuts against the bridge expansion joint. The rubber expansion pad has good elasticity and flexibility, allowing it to elastically deform during bridge expansion and contraction, maintaining a consistent sealing effect and effectively preventing water infiltration.

Description

Technical Field

[0001] This utility model relates to the field of bridge waterproofing technology, and in particular to a sealing structure for a bridge waterproofing expansion joint. Background Technology

[0002] To accommodate the effects of material expansion and contraction on the structure and to ensure vehicles can pass smoothly over the bridge deck, gaps are set between the ends of two adjacent beams and between the beam ends and the abutment back wall. These gaps are called expansion joints. The level of installation of bridge expansion joints directly affects the stability of driving. During the construction phase, construction personnel can carry out expansion joint construction work according to the sequence of preliminary preparation, site preparation, and site construction.

[0003] In practice, some bridge expansion joints use panels to facilitate vehicle passage, but these panels have poor waterproofing performance, making it easy for rainwater and sewage to seep into the bridge expansion joints, corroding the steel and concrete structures of the bridge and reducing its service life. When the bridge undergoes significant expansion and contraction, the sealing structure cannot flexibly expand and contract with the bridge's deformation, which can easily lead to sealing failure. Therefore, we propose a sealing structure for a bridge waterproof expansion joint. Utility Model Content

[0004] In view of this, this application provides a sealing structure for a bridge waterproof expansion joint, which aims to solve the above-mentioned technical problems.

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

[0006] A sealing structure for a bridge waterproof expansion joint includes a bridge expansion joint mounting plate. A fixing frame is fixedly installed on the outer side of the bridge expansion joint mounting plate. A limiting groove is formed on the top of the fixing frame. A plurality of first springs are fixedly installed on the bottom inner wall of the limiting groove. A buffer moving frame is fixedly installed on the top of the first springs. The buffer moving frame is slidably installed inside the limiting groove. A supporting water guide plate is fixedly installed on the top of the buffer moving frame. Connecting grooves are formed on the front and rear sides of the supporting water guide plate. A rubber expansion pad is provided inside the connecting groove. A connecting groove is formed on one side of the rubber expansion pad. A water guide groove is formed on the top of the rubber expansion pad.

[0007] Preferably, a fixed cylinder is fixedly installed on the front and rear sides of the buffer moving frame, a telescopic plate is slidably installed on the inner side of the fixed cylinder, and a fixing bolt is threaded on the inner side of the fixed cylinder.

[0008] Preferably, a damper and a second spring are fixedly installed on the top of the bridge expansion joint mounting plate, the second spring being disposed on the outside of the damper, and the supporting water guide plate being fixedly installed on the top of the damper and the second spring.

[0009] Preferably, the top of the supporting water guide plate and the rubber expansion pad is provided with a drainage slope, and the water guide channel extends along the direction of the bridge expansion joint.

[0010] Preferably, the connecting groove is T-shaped, and a T-shaped block is fixedly installed on one side of the rubber expansion pad, with the T-shaped block fitting into the connecting groove.

[0011] Preferably, the top of the bridge expansion joint mounting plate has multiple threaded holes, and the bridge expansion joint mounting plate is bolted inside the bridge expansion joint.

[0012] Preferably, one end of the fixing bolt is rotatably fitted with an anti-slip pad, which abuts against the telescopic plate.

[0013] Preferably, the top of the buffer moving frame and the supporting water guide plate are provided with threaded holes, the inner side of the threaded holes is threaded with locking bolts, and the outer side of the buffer moving frame is provided with rubber pads.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model discloses a sealing structure for a bridge waterproof expansion joint. A buffer moving frame is installed inside a limiting groove via a first spring. During vehicle operation, the first spring, damper, and second spring provide buffer support for the buffer moving frame and the supporting water guide plate, preventing the supporting water guide plate from deforming or being damaged due to excessive weight. Depending on the size of the expansion joint, a rubber expansion pad can be inserted into the connecting groove for expansion, facilitating the sealing connection of multiple prefabricated components for expansion joints of different sizes. After expansion, the rubber expansion pad abuts against the bridge expansion joint. The rubber expansion pad has good elasticity and flexibility, allowing it to elastically deform during bridge expansion and contraction, maintaining a consistent sealing effect and effectively preventing water infiltration.

[0016] This utility model discloses a sealing structure for a bridge waterproof expansion joint. A water-guiding groove is provided above the rubber expansion pad, and a water-guiding slope is provided at the top of the supporting water-guiding plate. The water-guiding groove extends along the direction of the bridge expansion joint, facilitating drainage. This ensures that water can be quickly and smoothly discharged outside the bridge structure, preventing water from flowing into the inside of the bridge expansion joint and thus improving the waterproofing effect of the device.

[0017] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a sealing structure for a bridge waterproof expansion joint proposed in this utility model.

[0019] Figure 2 This diagram illustrates a three-dimensional view of a partial structure of a sealing structure for a bridge waterproof expansion joint according to an embodiment of this application.

[0020] Figure 3 A schematic diagram showing a three-dimensional view of a portion of the structure of the fixed cylinder and telescopic plate provided according to an embodiment of this application;

[0021] Figure 4 A schematic diagram of a three-dimensional view of the exploded portion structure of a sealing structure for a bridge waterproof expansion joint provided in an embodiment of this application is shown.

[0022] Figure label:

[0023] 1. Bridge expansion joint mounting plate; 2. Fixing frame; 3. Limiting groove; 4. First spring; 5. Buffer moving frame; 6. Supporting water guide plate; 7. Connecting groove; 8. Rubber expansion pad; 9. Water guide groove; 10. Fixing cylinder; 11. Expansion plate; 12. Fixing bolt; 13. Damper; 14. Second spring. Detailed Implementation

[0024] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings;

[0025] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] refer to Figure 1-4 A sealing structure for a bridge waterproof expansion joint device includes a bridge expansion joint mounting plate 1. A fixing frame 2 is fixedly installed on the outer side of the bridge expansion joint mounting plate 1. A limiting groove 3 is opened on the top of the fixing frame 2. A plurality of first springs 4 are fixedly installed on the bottom inner wall of the limiting groove 3. A buffer moving frame 5 is fixedly installed on the top of the first springs 4. The buffer moving frame 5 is slidably installed on the inner side of the limiting groove 3. A supporting water guide plate 6 is fixedly installed on the top of the buffer moving frame 5. Connecting grooves 7 are opened on the front and rear sides of the supporting water guide plate 6. A rubber expansion pad 8 is provided on the inner side of the connecting groove 7. A connecting groove 7 is opened on one side of the rubber expansion pad 8. A water guide groove 9 is opened on the top of the rubber expansion pad 8.

[0027] In this embodiment, a fixed cylinder 10 is fixedly installed on the front and rear sides of the buffer moving frame 5, a telescopic plate 11 is slidably installed on the inner side of the fixed cylinder 10, and a fixing bolt 12 is threaded on the inner side of the fixed cylinder 10.

[0028] In this embodiment, a damper 13 and a second spring 14 are fixedly installed on the top of the bridge expansion joint mounting plate 1. The second spring 14 is located on the outside of the damper 13, and the water guide plate 6 is fixedly installed on the top of the damper 13 and the second spring 14.

[0029] In this embodiment, a drainage slope is provided on the top of the supporting water guide plate 6 and the rubber expansion pad 8, and the water guide channel 9 extends along the direction of the bridge expansion joint. The drainage slope makes it easy to prevent water from accumulating above the supporting water guide plate 6 and the rubber expansion pad 8, allowing water to be discharged from the water guide channel 9 and allowing the water source to flow to the drainage area above the bridge, so that the steel structure and concrete structure above the bridge are less prone to corrosion.

[0030] In this embodiment, the connecting groove 7 is T-shaped, and a T-shaped block is fixedly installed on one side of the rubber expansion pad 8. The T-shaped block fits into the connecting groove 7. The rubber expansion pad 8 can be inserted into the inside of the connecting groove 7 to expand according to the size of the expansion joint, so that multiple prefabricated parts can seal and connect expansion joints of different sizes. After expansion, the rubber expansion pad 8 abuts against the bridge expansion joint. The rubber expansion pad 8 is made of rubber, which has excellent UV resistance and anti-aging properties and can adapt to complex outdoor climate environments. The rubber expansion pad 8 has good elasticity and flexibility, and can undergo elastic deformation when the bridge expands and contracts, thus maintaining a sealing effect.

[0031] In this embodiment, the top of the bridge expansion joint mounting plate 1 is provided with multiple threaded holes, and the bridge expansion joint mounting plate 1 is bolted inside the bridge expansion joint. The bridge expansion joint mounting plate 1 is placed above the bridge expansion joint, and the bridge expansion joint mounting plate 1 is installed on the inner side of the expansion joint by fixing bolts. This allows the bridge expansion joint mounting plate 1 and the fixing frame 2 to be firmly installed at the bridge expansion joint, while allowing the bridge expansion joint mounting plate 1 to move within a certain range with the expansion and contraction deformation of the bridge, ensuring a tight connection between the sealing structure and the bridge structure.

[0032] In this embodiment, an anti-slip pad is rotatably installed on one end of the fixing bolt 12, and the anti-slip pad abuts against the telescopic plate 11. The anti-slip pad allows the fixing bolt 12 to press against the telescopic plate 11 and lock the telescopic plate 11 in place, so that the telescopic plate 11 will not shift during use, resulting in a better support effect.

[0033] In this embodiment, threaded holes are provided on the top of the buffer moving frame 5 and the supporting water guide plate 6, and locking bolts are installed on the inner threads of the threaded holes. Rubber pads are provided on the outer side of the buffer moving frame 5. The first spring 4, the damper 13 and the second spring 14 can provide buffer support for the buffer moving frame 5 and the supporting water guide plate 6, so that the supporting water guide plate 6 will not be deformed or damaged due to excessive weight. The locking bolts can make the buffer moving frame 5 and the supporting water guide plate 6 more stable. The rubber pads can increase the friction between the buffer moving frame 5 and the limiting groove 3, so that the buffering and shock absorption effect is better.

[0034] The specific operation is as follows: place the bridge expansion joint installation plate 1 above the bridge expansion joint, and install the bridge expansion joint installation plate 1 on the inside of the expansion joint by fixing bolts. This allows the bridge expansion joint installation plate 1 and the fixing frame 2 to be firmly installed at the bridge expansion joint, while allowing the bridge expansion joint installation plate 1 to move within a certain range with the expansion and contraction deformation of the bridge, ensuring a tight connection between the sealing structure and the bridge structure.

[0035] The buffer moving frame 5 is installed inside the limiting groove 3 via the first spring 4. During vehicle operation, the first spring 4, damper 13, and second spring 14 can provide buffer support for the buffer moving frame 5 and the supporting water guide plate 6, preventing the supporting water guide plate 6 from deforming or being damaged due to excessive weight. Depending on the size of the expansion joint, the rubber expansion pad 8 can be inserted into the inside of the connecting groove 7 for expansion, facilitating the sealing connection of multiple prefabricated components for expansion joints of different sizes. After expansion, the rubber expansion pad 8 abuts against the bridge expansion joint. The rubber expansion pad 8 is made of rubber, which has excellent UV resistance and anti-aging properties, and can adapt to complex outdoor climate environments. The rubber expansion pad 8 has good elasticity and flexibility, and can undergo elastic deformation when the bridge expands and deforms, always maintaining a sealing effect. It can effectively prevent water seepage. The rubber expansion pad 8 can provide support for the supporting water guide plate 6. When the bridge expands and deforms, the rubber expansion pad 8 follows the expansion and contraction of the bridge, further enhancing the expansion and contraction adaptability of the sealing component.

[0036] A water guide groove 9 is provided above the rubber expansion pad 8, and a water guide slope is provided on the top of the supporting water guide plate 6. The water guide groove 9 extends along the direction of the bridge expansion joint to facilitate drainage and ensure that water can be discharged quickly and smoothly from the outside of the bridge structure, so that water will not flow into the inside of the bridge expansion joint, which can make the device have a better waterproof effect.

[0037] The telescopic plate 11 can slide inside the fixed cylinder 10, allowing the fixed cylinder 10 and the telescopic plate 11 to cooperate in supporting the water guide plate 6 and the rubber expansion pad 8. This prevents the rubber expansion pad 8 from being damaged under pressure. An anti-slip pad is rotatably provided at one end of the fixing bolt 12, which allows the fixing bolt 12 to lock the telescopic plate 11 in place, thus preventing the telescopic plate 11 from shifting during use and resulting in better support.

[0038] It should be noted that although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing structure for a bridge waterproof expansion joint, characterized in that, include: A bridge expansion joint mounting plate (1) is provided with a fixed frame (2) fixedly installed on the outer side of the bridge expansion joint mounting plate (1). A limit groove (3) is opened on the top of the fixed frame (2). A plurality of first springs (4) are fixedly installed on the bottom inner wall of the limit groove (3). A buffer moving frame (5) is fixedly installed on the top of the first springs (4). The buffer moving frame (5) is slidably installed on the inner side of the limit groove (3). A supporting water guide plate (6) is fixedly installed on the top of the buffer moving frame (5). A connecting groove (7) is opened on the front and rear sides of the supporting water guide plate (6). A rubber expansion pad (8) is provided on the inner side of the connecting groove (7). A connecting groove (7) is opened on one side of the rubber expansion pad (8). A water guide groove (9) is opened on the top of the rubber expansion pad (8).

2. The sealing structure of a bridge waterproof expansion joint according to claim 1, characterized in that, The buffer moving frame (5) is fixedly installed with a fixed cylinder (10) on the front and rear sides. A telescopic plate (11) is slidably installed on the inner side of the fixed cylinder (10). A fixing bolt (12) is threaded on the inner side of the fixed cylinder (10).

3. The sealing structure of a bridge waterproof expansion joint according to claim 1, characterized in that, The top of the bridge expansion joint mounting plate (1) is fixedly installed with a damper (13) and a second spring (14), the second spring (14) is located on the outside of the damper (13), and the supporting water guide plate (6) is fixedly installed on the top of the damper (13) and the second spring (14).

4. The sealing structure of a bridge waterproof expansion joint according to claim 1, characterized in that, The top of the supporting water guide plate (6) and the rubber expansion pad (8) is provided with a drainage slope, and the water guide channel (9) extends along the direction of the bridge expansion joint.

5. The sealing structure of a bridge waterproof expansion joint according to claim 1, characterized in that, The connecting groove (7) is T-shaped, and a T-shaped block is fixedly installed on one side of the rubber expansion pad (8), and the T-shaped block fits into the connecting groove (7).

6. The sealing structure of a bridge waterproof expansion joint according to claim 1, characterized in that, The top of the bridge expansion joint mounting plate (1) is provided with multiple threaded holes, and the bridge expansion joint mounting plate (1) is bolted inside the bridge expansion joint.

7. The sealing structure of a bridge waterproof expansion joint according to claim 2, characterized in that, One end of the fixing bolt (12) is rotatably fitted with an anti-slip pad, which abuts against the telescopic plate (11).

8. The sealing structure of a bridge waterproof expansion joint according to claim 1, characterized in that, The top of the buffer moving frame (5) and the supporting water guide plate (6) are provided with threaded holes, and locking bolts are installed on the inner thread of the threaded holes. Rubber pads are provided on the outer side of the buffer moving frame (5).

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