Bridge expansion joint structure

Abstract

The utility model belongs to the technical field of bridge expansion joints, and particularly relates to a bridge expansion joint structure. Comprising steel structures which are symmetrically arranged, F-shaped bridge expansion plates are fixedly installed on the steel structures, and a rubber belt rapid dismounting and mounting mechanism is arranged between the F-shaped bridge expansion plates in a matched mode. Through structural improvement and optimization, a layer of metal net is additionally arranged on the rubber belt, so that deformation and stretching along with the rubber belt can be met, normal operation of functions of the rubber belt can be guaranteed, and direct damage to the rubber belt caused by external sharp sundries can also be prevented; in addition, a plurality of fixing rods are arranged and matched with upper inclined grooves, so that new rubber belts can be effectively fixed to the steel structures on the two sides, and replacement and maintenance are more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of bridge expansion joint technology, and specifically relates to a bridge expansion joint structure. Background Technology

[0002] In order to prevent the bridge deck from deforming due to thermal expansion and contraction caused by ambient temperature or external forces during the use of a bridge, expansion joints are usually installed between two bridge sections, between a bridge section and an abutment, or at the hinge points of the bridge. Related devices for bridge expansion and contraction are installed in the expansion joints.

[0003] Common expansion joint structures include butt joint type, steel plate type, combined shear type, digital model support type, and seamless type. Among them, the most common is the butt joint type, which has a rubber strip sandwiched in the middle. The expansion joint achieves its structural function through the deformation of the rubber strip. However, due to the complex road environment, the rubber strip is exposed for a long time, resulting in a short service life. Debris accumulates on the rubber strip, and sharp debris can cut it, limiting its overall function. To address these issues, a new type of bridge expansion joint structure with convenient rubber strip replacement is proposed. Utility Model Content

[0004] In order to solve the problems existing in the background art, this utility model provides a bridge expansion joint structure.

[0005] This utility model provides a bridge expansion joint structure, including symmetrically arranged steel structures, on which F-shaped bridge expansion plates are fixedly installed. A quick-release mechanism for rubber straps is provided between the F-shaped bridge expansion plates. The quick-release mechanism for rubber straps includes several grooves evenly arranged on the F-shaped bridge expansion plates. A screw is threaded into each groove, and a fixing rod is fixedly installed at one end of the screw extending downwards into the F-shaped bridge expansion plate. An inclined groove is provided inside the F-shaped bridge expansion plate, and a rubber strap is provided between the F-shaped bridge expansion plates through the fixing rod and the inclined groove.

[0006] Furthermore, a metal mesh is fixedly installed on the upper side of the rubber belt.

[0007] Furthermore, the inclined groove is provided with anti-slip texture.

[0008] Furthermore, a knob block is fixedly installed at the upper end of the screw, and the knob block is provided with a polygonal groove.

[0009] Furthermore, the polygonal groove is specifically a regular hexagonal groove.

[0010] Furthermore, a spherical head is fixedly installed at the lower end of the fixing rod.

[0011] The beneficial effects of this utility model are:

[0012] This utility model improves and optimizes the structure by adding a layer of metal mesh to the rubber belt. This mesh allows the rubber belt to deform and stretch, ensuring its normal operation and preventing sharp objects from damaging it. Additionally, several fixing rods, along with inclined grooves, effectively secure the new rubber belt to the steel structures on both sides, making replacement and maintenance more convenient. Attached Figure Description

[0013] Figure 1 This is a top perspective view of a bridge expansion joint structure according to the present invention.

[0014] Figure 2 This is a bottom-view perspective view of a bridge expansion joint structure according to the present invention.

[0015] Figure 3 This is a schematic diagram of the structure of a bridge expansion joint structure after the screw and the F-type bridge expansion plate are separated.

[0016] Figure 4 This is a schematic diagram of area A of a bridge expansion joint structure according to this utility model.

[0017] Figure 5 This is a schematic diagram of the screw structure of a bridge expansion joint according to the present invention.

[0018] As shown in the figure:

[0019] 1. Steel structure; 2. F-type bridge expansion joint; 3. Groove; 4. Screw; 5. Fixing rod; 6. Inclined groove; 7. Rubber strip; 8. Metal mesh; 9. Anti-slip texture; 10. Knob block; 11. Polygonal groove; 12. Spherical head. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please refer to the accompanying diagrams for all instruction manuals:

[0023] A bridge expansion joint structure includes symmetrically arranged steel structures 1, each of which is fixedly installed with an F-type bridge expansion plate 2, and the F-type bridge expansion plates 2 are equipped with a rubber belt quick-release mechanism.

[0024] The quick-release mechanism for the rubber belt includes several grooves 3 evenly arranged on the F-type bridge expansion plate 2. A screw 4 is threadedly connected to the groove 3. A fixing rod 5 is fixedly installed at one end of the screw 4 that extends downward into the F-type bridge expansion plate 2. An inclined groove 6 is provided inside the F-type bridge expansion plate 2. A rubber belt 7 is provided between the F-type bridge expansion plates 2 through the fixing rod 5 and the inclined groove 6.

[0025] As can be seen from the above description, the rotation of the screw 4 drives the fixed rod 5 to descend, and with the inclined groove 6, the rubber belt 7 can be fixed between the F-type bridge expansion plates 2 on both sides. The steel structure 1 and the F-type bridge expansion plates 2 are fixed on the bridge, which enables the effective operation of the entire equipment.

[0026] As a technical optimization of this utility model, a metal mesh 8 is fixedly installed on the upper side of the rubber belt 7;

[0027] As can be seen from the above description, the metal mesh 8 can increase the protective ability of the rubber belt 7, reduce the risk of being directly cut by sharp objects, improve service life, and adapt to the deformation of the rubber belt 7.

[0028] As a technical optimization of this utility model, the inclined groove 6 is provided with anti-slip texture 9;

[0029] As can be seen from the above description, the anti-slip texture 9 can increase the friction between the fixing rod 5 and the rubber band 7, thereby improving the fixing effect of the rubber band 7.

[0030] As a technical optimization of this utility model, a knob block 10 is fixedly installed on the upper end of the screw 4, and a polygonal groove 11 is provided on the rotating block 10.

[0031] As can be seen from the above description, controlling the rotating block 10 to drive the screw 4 to rotate is more convenient and reliable.

[0032] As a technical optimization of this utility model, the polygonal groove 11 is specifically a regular hexagonal groove;

[0033] As can be seen from the above description, the hexagonal polygonal groove 11 can better fit external wrenches, making it more convenient to control the rotation of the rotating block 10.

[0034] As a technical optimization of this utility model, a spherical head 12 is fixedly installed at the lower end of the fixing rod 5;

[0035] As can be seen from the above description, the spherical head 12 can better adapt to the structure of the inclined groove 6 and the anti-slip texture 9, and can better fix the rubber belt 7.

[0036] The working process of this utility model is as follows:

[0037] The steel structure is fixed to the concrete structure of the bridge, and the F-type bridge expansion joint 2 is also fixed. The rubber strip 7 is fixed between the F-type bridge expansion joints 2 by the fixing rod 5. When replacement is required, a hexagonal wrench is inserted into the polygonal groove 11, and the rotating block 10 is rotated to drive the screw 4 to rotate, so that the fixing rod 5 and the ball head 12 are released from the control of the rubber strip 7. The old rubber strip 7 is taken out and replaced with a new rubber strip 7. The two ends of the rubber strip 7 are inserted into the inclined groove 6, and the screw 4 is tightened in sequence, so that the fixing rod 5 and the ball head 12 are pressed on the rubber strip 7. The structure of the inclined groove 6 and the anti-slip texture 9 makes the rubber strip 7 better fixed between the two F-type bridge expansion joints 2.

[0038] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A bridge expansion joint structure, comprising symmetrically arranged steel structures, characterized in that: F-type bridge expansion joints are fixedly installed on the steel structure. The F-type bridge expansion joints are equipped with a quick-release mechanism for rubber belts. The quick-release mechanism for rubber belts includes several grooves evenly arranged on the F-type bridge expansion joints. A screw is threaded into the groove. A fixing rod is fixedly installed at one end of the screw that extends downward into the F-type bridge expansion joint. The F-type bridge expansion joints are provided with inclined grooves. Rubber belts are provided between the F-type bridge expansion joints through the fixing rod and the inclined grooves.

2. The bridge expansion joint structure according to claim 1, characterized in that: A metal mesh is fixedly installed on the upper side of the rubber belt.

3. The bridge expansion joint structure according to claim 1, characterized in that: The inclined groove is provided with anti-slip texture.

4. A bridge expansion joint structure according to claim 1, characterized in that: A knob block is fixedly installed at the upper end of the screw, and the knob block has a polygonal groove.

5. A bridge expansion joint structure according to claim 4, characterized in that: The polygonal groove is specifically a regular hexagonal groove.

6. A bridge expansion joint structure according to claim 1, characterized in that: A spherical head is fixedly installed at the lower end of the fixing rod.

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