CN218911115U

CN218911115U - Expansion joint structure

Info

Publication number: CN218911115U
Application number: CN202223225315.5U
Authority: CN
Inventors: 张银方
Original assignee: Guangdong Hongtang Infrastructure Engineering Co ltd
Current assignee: Guangdong Hongtang Infrastructure Engineering Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-04-25
Anticipated expiration: 2032-12-02

Abstract

The utility model relates to the technical field of expansion joints, in particular to an expansion joint structure, which comprises: gap board, shielding plate and bridge main part, the inner wall of bridge main part is fixed with the gap board, the inboard sliding connection of gap board has the shielding plate, the upper end slip overlap joint of shielding plate is on the gap board. The shielding plate is arranged at the upper end of the gap plate in a sliding way and the joint of the gap plate and the shielding plate is blocked by the first elastic sealing block, so that gravel impurities can be prevented from falling into an expansion joint to damage a water stopping structure; the joint of the gap plate and the shielding plate can be blocked by the first elastic sealing block and the second elastic sealing block, so that the joint can be subjected to double waterproof to prevent the expansion joint structure from being corroded by rainwater.

Description

Expansion joint structure

Technical Field

The utility model relates to the technical field of expansion joints, in particular to an expansion joint structure.

Background

The bridge is generally composed of an upper structure, a lower structure, a support and an accessory structure, wherein the upper structure is also called a bridge span structure and is a main structure for crossing obstacles; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the support is a force transmission device arranged at the supporting position of the bridge span structure and the bridge pier or the bridge abutment; the auxiliary structure is bridge end butt strap, cone slope protection, bank protection, diversion engineering, etc. Most of the existing bridges are provided with expansion joint structures, and the expansion joints of the bridges are arranged between two beam ends, between a beam end and a bridge abutment or at the hinge positions of the bridges in order to meet the requirement of bridge deck deformation. The expansion joint is required to be freely telescopic in two directions parallel and perpendicular to the axis of the bridge, is firm and reliable, and is smooth, free of sudden jump and noise when the vehicle runs, and in order to achieve the functions, the structure of the bridge expansion joint is required to be exposed on the surface of the bridge, and waterproof is carried out through a water stop belt.

The traditional bridge expansion joint is very easy to get into the expansion joint inside with all kinds of rubbish in the use, and gravel and all kinds of rubbish extremely can cause expansion joint inside waterstop structure damage and seepage, loses the stagnant water function, and the expansion joint receives erosion structure to be destroyed for a long time.

For example, the authority bulletin number CN211171593U discloses a bridge expansion joint, including crossbeam, well roof beam, carriage, symmetry set up displacement case and boundary beam in the carriage both sides, all be connected with totally closed rubber support on the inner wall at the bottom of every displacement case and the inner wall at the top of carriage, all be connected with totally closed rubber spring support on the inner wall at the top of every displacement case and the inner wall at the bottom of carriage, all be connected with the boundary beam on the outer wall at the top of every displacement case, two boundary beams all are connected with the one end of well roof beam, the other end of well roof beam is connected with the outer wall at the top of carriage, every displacement case is located same horizontal plane with the central line of carriage, the crossbeam is arranged in displacement case and carriage. Simple structure and good stability. But when inside entering grit and the impurity of adhesive tape, expansion joint receives the grit wearing and tearing back expansion joint erosion of intaking and influences expansion joint structural stability easily.

In conclusion, the bridge expansion joint really exists in the actual use process, gravel and various garbage are very easy to enter the expansion joint, the gravel and various garbage can very cause the damage of the water stop structure in the expansion joint to leak, the water stop function is lost, and the expansion joint is inevitably damaged by the erosion structure for a long time.

For this purpose, we propose an expansion joint structure to solve the above mentioned problems.

Disclosure of Invention

The utility model aims to provide an expansion joint structure which aims to solve the problem that sundries are prevented from entering an expansion joint.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an expansion joint structure comprising: gap board, shielding plate and bridge main part, the inner wall of bridge main part is fixed with the gap board, the inboard sliding connection of gap board has the shielding plate, the upper end slip overlap joint of shielding plate is on the gap board.

Preferably, the gap plate is provided with a guide groove, the inner side of the guide groove is connected with the shielding plate in a sliding way,

preferably, a second elastic sealing block is arranged on the inner side of the guide groove, a second cavity is formed in the second elastic sealing block, and four sides of the second elastic sealing block are connected with the inner wall of the guide groove and the side face of the shielding plate.

Preferably, a first elastic sealing block is arranged between the gap plate and the shielding plate, and four sides of the first elastic sealing block are connected with the gap plate and the shielding plate.

Preferably, a first cavity is formed in the first elastic sealing block, an arc-shaped plate is welded on the inner wall of the first cavity, and a spring is arranged between the arc-shaped plates.

Preferably, the gap plate is symmetrically provided with reinforcing lacing wires, and the reinforcing lacing wires are positioned in the bridge main body.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the shielding plate is arranged at the upper end of the gap plate in a sliding way and the joint of the gap plate and the shielding plate is blocked by the first elastic sealing block, so that gravel impurities can be prevented from falling into the expansion joint to damage the water stopping structure.

2. According to the utility model, the joint of the gap plate and the shielding plate can be blocked by the first elastic sealing block and the second elastic sealing block, so that the joint can be subjected to double waterproof, and the expansion joint structure is prevented from being corroded by rainwater.

Drawings

FIG. 1 is a cross-sectional view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a slit plate of the present utility model;

FIG. 3 is a schematic view of a shielding plate according to the present utility model.

In the figure: the bridge comprises a gap plate 1, a guide groove 11, a reinforcing lacing wire 12, a shielding plate 2, a first elastic sealing block 3, a first cavity 31, an arc plate 32, a spring 33, a second elastic sealing block 4, a second cavity 41 and a bridge main body 5.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2 and 3, an expansion joint structure in the drawings includes: gap board 1, shielding plate 2 and bridge main part 5, the inner wall of bridge main part 5 is fixed with gap board 1, gap board 1 pours in the side of bridge main part 5, gap board 1 is as shown in the shape of fig. 2, gap board 1 adopts stainless steel to make and forms, gap board 1 inboard sliding connection has shielding plate 2, shielding plate 2 is as the shape of fig. 3, shielding plate 3 adopts stainless steel to make and forms, the upper end slip overlap joint of shielding plate 2 is on gap board 1, the upper end overlap joint of shielding plate 2 is on gap board 1, can prevent debris from falling into the expansion joint.

Be provided with guide way 11 on the gap board 1, guide way 11 is square recess, and guide way 11 inboard sliding connection shielding plate 2, shielding plate 2 are led through guide way 11, and when the expansion joint was flexible, shielding plate 2 was along guide way 11 inner wall and gap board 1 up end slip.

The guide way 11 inboard is provided with second elastic sealing block 4, and second elastic sealing block 4 adopts weather-proof elastic rubber to make for square structure, and second elastic sealing block 4 inside is provided with second cavity 41, and the elasticity of second elastic sealing block 4 is increased in the setting of first cavity 41, and second elastic sealing block 4 influences normal flexible when avoiding the expansion joint shrink, and the four sides of second elastic sealing block 4 meet with guide way 11 inner wall and shielding plate 2 side, can waterproof to shielding plate 2 and guide way 11 junction through second elastic sealing block 4.

A first elastic sealing block 3 is arranged between the gap plate 1 and the shielding plate 2, the first elastic sealing block 3 is made of weather-proof elastic rubber and is square, four sides of the first elastic sealing block 3 are connected with the gap plate 1 and the shielding plate 2, and the joint of the gap plate 1 and the shielding plate 2 is sealed and waterproof through the first elastic sealing block 3.

The inside of first elastic seal piece 3 is provided with first cavity 31, the elasticity of first elastic seal piece 3 is increased to first cavity 31, first cavity 31 inner wall welding has arc 32, be provided with spring 33 between the arc 32, elasticity butt arc 32 through spring 33 makes arc 32 butt first cavity 31 inner wall, can reset at the expansion joint after the flexible back of restoring to the throne of expansion joint first elastic seal piece 3, can make the inner wall that first elastic seal piece 3 butt shielding plate 2 and slit board 1 seal the heatstroke prevention to the junction through the elasticity of spring 33 simultaneously, prevent debris to fall into the expansion joint simultaneously.

The gap plate 1 is symmetrically provided with reinforcing lacing wires 12, the reinforcing lacing wires are welded on the gap plate 1, the reinforcing lacing wires 12 are positioned in the bridge main body 5, and the connection stability between the gap plate 1 and the bridge main body 5 is improved through the reinforcing lacing wires 12.

This expansion joint structure when using: the lower end of the shielding plate 2 is arranged on the inner side of the guide groove 11 in a sliding manner, the upper end of the shielding plate 2 is in sliding lap joint with the surface of the gap plate 1, and the first elastic sealing block 3 is matched with the surfaces of the gap plate 1 and the shielding plate 2 through the elasticity of the first elastic sealing block and the spring 33, so that sundries can be effectively prevented from falling into the inner side of the expansion joint;

the first elastic sealing block 3 is connected with the inner wall of the guide groove 11 and the side surface of the shielding plate 2 through the elastic butt joint gap plate 1 of the first elastic sealing block and the spring 33, the surfaces of the shielding plate 2 and the four sides of the second elastic sealing block 4, the joint of the shielding plate 2 and the gap plate 1 can be waterproof through the first elastic sealing block 3 and the second elastic sealing block 4, and the expansion joint can be prevented from being corroded by rainwater.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An expansion joint structure, characterized by comprising:

gap board (1), shielding plate (2) and bridge main part (5), the inner wall of bridge main part (5) is fixed with gap board (1), the inboard sliding connection of gap board (1) has shielding plate (2), the upper end slip overlap joint of shielding plate (2) is on gap board (1).

2. An expansion joint structure according to claim 1, wherein: the gap plate (1) is provided with a guide groove (11), and the inner side of the guide groove (11) is connected with the shielding plate (2) in a sliding manner.

3. An expansion joint structure according to claim 2, wherein: the inner side of the guide groove (11) is provided with a second elastic sealing block (4), a second cavity (41) is formed in the second elastic sealing block (4), and four sides of the second elastic sealing block (4) are connected with the inner wall of the guide groove (11) and the side face of the shielding plate (2).

4. An expansion joint structure according to claim 1, wherein: a first elastic sealing block (3) is arranged between the gap plate (1) and the shielding plate (2), and four sides of the first elastic sealing block (3) are connected with the gap plate (1) and the shielding plate (2).

5. The expansion joint structure according to claim 4, wherein: the inside of first elastic seal piece (3) is provided with first cavity (31), and first cavity (31) inner wall welding has arc (32), is provided with spring (33) between arc (32).

6. An expansion joint structure according to claim 1, wherein: reinforcing lacing wires (12) are symmetrically arranged on the gap plate (1), and the reinforcing lacing wires (12) are positioned in the bridge main body (5).