Stable anchoring type bridge expansion joint

Abstract

The utility model relates to the technical field of bridge engineering, in particular to a stable anchoring type bridge expansion joint which comprises an L-shaped plate, anchoring steel bars are welded to the opposite sides of the L-shaped plate, an expansion joint body is placed on the top of the L-shaped plate, and positioning blocks are welded to the front side and the rear side of the top of the L-shaped plate. Positioning grooves are formed in the front side and the rear side of the bottom of the expansion joint main body, rectangular grooves are formed in the front side and the rear side of the top of the expansion joint main body, limiting mechanisms are movably connected to inner cavities of the rectangular grooves in a penetrating mode, and each limiting mechanism comprises a limiting block. Through the cooperation of the box body, the rectangular plate and the dustproof cloth, the filter box has the advantage of filtering function, the rectangular plate is inserted into the inner cavity of the box body, then the positioning bolt is screwed, one end of the positioning bolt is in close contact with the rectangular plate, so that the rectangular plate is limited and fixed, and impurities can be filtered under the action of the dustproof cloth; and the water liquid can penetrate through the dustproof cloth.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to a stable anchoring type bridge expansion joint. Background Art

[0002] Bridge expansion joints refer to expansion joints that are usually set between the two beam ends, between the beam ends and the abutments, or at the hinged positions of the bridge to meet the requirements of bridge deck deformation.

[0003] After searching, the patent number is CN216427985U, and the name is a utility model of a bridge expansion joint with adjustable spacing, including a base plate. Through research and analysis, it is found that although the telescopic mechanism set during use can automatically drive the beams to move, thereby controlling the size of the gap between the beams and other advantages, however, to a certain extent, there are still the following disadvantages.

[0004] For example, it does not have a filtering function, which makes it easy for debris such as mud, fallen leaves and garbage to enter the expansion joint. The accumulation of these debris will hinder the expansion and contraction function of the expansion joint, thereby creating a safety hazard. In addition, it does not have a quick-disassembly structure. When the expansion joint components are damaged and need to be repaired and replaced, the concrete near the expansion joint needs to be removed. In the process of removing the concrete, it is easy to cause secondary damage to the original structure of the bridge. The whole process will cause the bridge expansion joint to be unable to be used normally for a long time, seriously affecting traffic. In order to solve the above technical problems, we have designed a stable anchored bridge expansion joint. Utility Model Content

[0005] The purpose of the utility model is to provide a stable anchored bridge expansion joint with the advantages of filtering function and easy maintenance, which solves the problem that the existing expansion joint structure cannot filter impurities such as fallen leaves and garbage during use, and does not have a quick-release structure, making it inconvenient for users to disassemble and replace the expansion joint components.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a stable anchored bridge expansion joint, comprising an L-shaped plate, anchor steel bars are welded on opposite sides of the L-shaped plate, an expansion joint body is placed on the top of the L-shaped plate, positioning blocks are welded on the front and rear sides of the top of the L-shaped plate, positioning grooves are provided on the front and rear sides of the bottom of the expansion joint body, rectangular grooves are provided on the front and rear sides of the top of the expansion joint body, the inner cavity of the rectangular groove passes through a movable connection limiting mechanism, the limiting mechanism comprises a limiting block, a limiting groove is provided on the opposite side of the positioning block, a C-shaped groove is provided on the opposite side of the expansion joint body, a waterstop is placed in the inner cavity of the C-shaped groove, a box body is riveted on the top of the opposite side of the expansion joint body, a rectangular plate is placed in the inner cavity of the box body, and a dustproof cloth is riveted on the top of the rectangular plate.

[0007] Preferably, the opposite ends of the limit blocks extend to the inner cavity of the limit groove, the opposite ends of the limit blocks are riveted with movable plates, the top of the movable plates are riveted with pull plates, the opposite sides of the movable plates are riveted with springs, and the opposite ends of the springs are fixedly connected to the inner wall of the rectangular groove.

[0008] Preferably, the top of the positioning block extends to the inner cavity of the positioning groove, and the number of the anchoring steel bars is several.

[0009] Preferably, the front side and the rear side of the opposite side of the box body are both threadedly connected with positioning bolts, and the opposite ends of the positioning bolts are both penetrated into the inner cavity of the box body and contact the rectangular plate.

[0010] Preferably, support plates are riveted to the tops of both sides of the inner cavity of the rectangular groove, and the tops of the support plates are connected to sealing plates by bolts.

[0011] Preferably, the waterstop is made of rubber, and the dustproof cloth is located on the top of the waterstop.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model has the advantage of filtering function through the cooperation of the box body, the rectangular plate and the dustproof cloth. The rectangular plate is inserted into the inner cavity of the box body, and then the positioning bolt is tightened. One end of the positioning bolt is in close contact with the rectangular plate, thereby limiting and fixing the rectangular plate. Under the action of the dustproof cloth, impurities can be filtered and water can pass through the dustproof cloth.

[0014] 2. The utility model has the advantage of easy maintenance through the cooperation of the positioning block, positioning groove, rectangular groove and limit mechanism. When the expansion joint body needs to be disassembled and replaced, the sealing plate is opened, and then the pulling plate is pulled. The pulling plate drives the movable plate to move, and the compression spring of the movable plate drives the limit block to move. One end of the limit block is away from the limit groove. At this time, the limit on the expansion joint body is released, and then it can be disassembled and taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the structure of the utility model;

[0016] Figure 2 This is a three-dimensional diagram of the L-shaped plate structure of the utility model;

[0017] Figure 3 This is a three-dimensional diagram of the dustproof cloth structure of the utility model;

[0018] Figure 4 This is a three-dimensional top view of the local structure of the utility model;

[0019] Figure 5This is a three-dimensional bottom view of the local structure of the utility model;

[0020] Figure 6 This is a three-dimensional diagram of the limiting mechanism of the utility model;

[0021] Figure 7 For this utility model Figure 4 A magnified view of center.

[0022] In the figure: 1. L-shaped plate; 2. Anchor steel bar; 3. Expansion joint body; 4. Positioning block; 5. Positioning groove; 6. Rectangular groove; 7. Limiting mechanism; 8. Limiting block; 9. Limiting groove; 10. C-shaped groove; 11. Waterstop; 12. Box body; 13. Rectangular plate; 14. Dustproof cloth; 15. Movable plate; 16. Pull plate; 17. Spring; 18. Positioning bolt; 19. Support plate; 20. Sealing plate. DETAILED DESCRIPTION

[0023] See also Figure 1-Figure 7 A stable anchored bridge expansion joint comprises an L-shaped plate 1, anchor steel bars 2 are welded on opposite sides of the L-shaped plate 1, an expansion joint body 3 is placed on the top of the L-shaped plate 1, positioning blocks 4 are welded on the front and rear sides of the top of the L-shaped plate 1, positioning grooves 5 are provided on the front and rear sides of the bottom of the expansion joint body 3, rectangular grooves 6 are provided on the front and rear sides of the top of the expansion joint body 3, the inner cavity of the rectangular groove 6 passes through a movable connection limiting mechanism 7, the limiting mechanism 7 comprises a limiting block 8, limiting grooves 9 are provided on the opposite side of the positioning block 4, a C-shaped groove 10 is provided on the opposite side of the expansion joint body 3, a waterstop 11 is placed in the inner cavity of the C-shaped groove 10, a box body 12 is riveted to the top of the opposite side of the expansion joint body 3, a rectangular plate 13 is placed in the inner cavity of the box body 12, and a dustproof cloth 14 is riveted to the top of the rectangular plate 13.

[0024] See also Figure 1 、 Figure 2 and Figure 6 The opposite ends of the limit blocks 8 extend to the inner cavity of the limit groove 9, and the opposite ends of the limit blocks 8 are riveted with movable plates 15. The top of the movable plate 15 is riveted with a pull plate 16, and the opposite side of the movable plate 15 is riveted with a spring 17. By setting the spring 17, the movable plate 15 can be driven to reset, so that the limit blocks 8 are always located in the inner cavity of the limit groove 9, and the opposite ends of the springs 17 are fixedly connected to the inner wall of the rectangular groove 6.

[0025] See also Figure 1 The top of the positioning block 4 extends to the inner cavity of the positioning groove 5, and the number of anchoring steel bars 2 is several.

[0026] See also Figure 7The front and rear sides of the opposite side of the box body 12 are both threaded with positioning bolts 18. By setting the positioning bolts 18, the rectangular plate 13 can be limited and fixed so that it will not fall off. The opposite ends of the positioning bolts 18 pass through the inner cavity of the box body 12 and contact the rectangular plate 13.

[0027] See also Figure 1 and Figure 4 The tops of both sides of the inner cavity of the rectangular groove 6 are riveted with support plates 19, and the tops of the support plates 19 are connected to sealing plates 20 by bolts. By setting the sealing plates 20, the rectangular groove 6 can be sealed to prevent dust and impurities from entering the inner cavity of the rectangular groove 6.

[0028] See also Figure 1 The material of the waterstop 11 is rubber, and the dustproof cloth 14 is located on the top of the waterstop 11.

[0029] When in use, place the anchor steel bar 2 and the L-shaped plate 1 in the pre-opened groove, then pour concrete on the surface of the anchor steel bar 2, lift the expansion joint body 3 by the crane, lift the expansion joint body 3 to the top of the L-shaped plate 1, and then pull the pull plate 16, the pull plate 16 drives the movable plate 15 and the limit block 8 to move, the expansion joint body 3 falls to the surface of the L-shaped plate 1, the positioning block 4 is inserted into the inner cavity of the positioning groove 5, and then the pull plate 16 is released. Under the action of the spring 17, the limit block 8 begins to reset and extend to the inner cavity of the limit groove 9, thereby completing the installation operation, and the water stop 11 is installed in the inner cavity of the C-shaped groove 10, and the rectangular plate 13 is inserted into the inner cavity of the box body 12, and then the positioning bolt 18 is tightened. One end of the positioning bolt 18 is in close contact with the rectangular plate 13, thereby limiting and fixing the rectangular plate 13. Under the action of the dustproof cloth 14, impurities can be filtered and water can pass through the dustproof cloth 14. When the expansion joint main body 3 needs to be disassembled and replaced, the sealing plate 20 is opened, and then the pull plate 16 is pulled. The pull plate 16 drives the movable plate 15 to move, and the movable plate 15 compresses the spring 17 to drive the limit block 8 to move. One end of the limit block 8 is away from the limit groove 9. At this time, the limit on the expansion joint main body 3 is released, and then it can be disassembled and taken away.

[0030] To sum up: the stable anchored bridge expansion joint, through the cooperation of the box body 12, the rectangular plate 13, the dustproof cloth 14, the positioning block 4, the positioning groove 5, the rectangular groove 6 and the limiting mechanism 7, solves the problem that the existing expansion joint structure cannot filter out impurities such as fallen leaves and garbage during use, and does not have a quick-release structure, which makes it inconvenient for users to disassemble and replace the expansion joint components.

Claims

1. A stable anchored bridge expansion joint, comprising an L-shaped plate (1), characterized in that: Anchor steel bars (2) are welded on opposite sides of the L-shaped plate (1), an expansion joint body (3) is placed on the top of the L-shaped plate (1), positioning blocks (4) are welded on the front and rear sides of the top of the L-shaped plate (1), positioning grooves (5) are provided on the front and rear sides of the bottom of the expansion joint body (3), rectangular grooves (6) are provided on the front and rear sides of the top of the expansion joint body (3), the inner cavity of the rectangular groove (6) passes through a movable connection limiting mechanism (7), and the limiting mechanism (7) is provided. The positioning mechanism (7) includes a limiting block (8), a limiting groove (9) is provided on the opposite side of the positioning block (4), a C-shaped groove (10) is provided on the opposite side of the expansion joint body (3), a water stop (11) is placed in the inner cavity of the C-shaped groove (10), a box body (12) is riveted on the top of the opposite side of the expansion joint body (3), a rectangular plate (13) is placed in the inner cavity of the box body (12), and a dustproof cloth (14) is riveted on the top of the rectangular plate (13).

2. The stable anchored bridge expansion joint according to claim 1, characterized in that: The opposite ends of the limit blocks (8) extend to the inner cavity of the limit groove (9), the opposite ends of the limit blocks (8) are riveted with movable plates (15), the top of the movable plates (15) are riveted with pull plates (16), the opposite sides of the movable plates (15) are riveted with springs (17), and the opposite ends of the springs (17) are fixedly connected to the inner wall of the rectangular groove (6).

3. The stable anchored bridge expansion joint according to claim 1, characterized in that: The top of the positioning block (4) extends to the inner cavity of the positioning groove (5), and the number of the anchoring steel bars (2) is several.

4. The stable anchored bridge expansion joint according to claim 1, characterized in that: The front and rear sides of the opposite sides of the box body (12) are both threadedly connected with positioning bolts (18), and the opposite ends of the positioning bolts (18) are both penetrated into the inner cavity of the box body (12) and contact the rectangular plate (13).

5. The stable anchored bridge expansion joint according to claim 1, characterized in that: Support plates (19) are riveted to the tops of both sides of the inner cavity of the rectangular groove (6), and the tops of the support plates (19) are connected to sealing plates (20) via bolts.

6. The stable anchored bridge expansion joint according to claim 1, characterized in that: The material of the waterstop (11) is rubber, and the dustproof cloth (14) is located on the top of the waterstop (11).

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