Bridge expansion joint structure
By introducing moving grooves and sliding grooves into the bridge expansion joints, the sliding mechanism of the limiting plate and sliding blocks is used to solve the problems of cumbersome replacement of rubber seal strips and wear of connecting blocks in the prior art, and the replacement speed and maintenance are improved efficiency.
Patent Information
- Application Number
- CN202420890739.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The existing bridge expansion joints require the use of cumbersome maintenance props when replacing rubber seal strips, resulting in long operation time and wear on the F-side beam connection block.
A bridge expansion joint structure is designed, by introducing a moving groove and sliding groove between the upper half connecting block and the lower half connecting block of the F-side beam, the sliding mechanism of the limiting plate and the sliding block is used to make the rubber sealing strip conveniently Removal from the clamping structure, thereby enabling replacement and repair.
It greatly improves the speed and maintenance efficiency of rubber seal strip replacement, and reduces wear on the F-side beam connecting block.
Smart Images
Figure CN222183054U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge expansion joints, and specifically to a bridge expansion joint structure. Background Art
[0002] Bridge expansion joints 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. Their function is to adjust the displacement and connection between the superstructures caused by vehicle loads and bridge construction materials. Once the expansion device of the skew bridge is damaged, it will seriously affect the speed, comfort and safety of driving, and even cause driving safety accidents.
[0003] However, the existing bridge expansion joints still have certain problems during the use and maintenance process. Generally, after a bridge expansion joint has been used for a period of time, the internal rubber sealing strip needs to be replaced to ensure the normal operation of the expansion joint. However, the rubber sealing strip in the existing expansion joint needs to be shoveled out and replaced by a maintenance tool deep into the F-side beam connecting block. This method is relatively cumbersome and time-consuming, and the tool also has certain wear on the F-side beam connecting block during operation. Therefore, a bridge expansion joint structure is proposed to solve the above problems. Utility Model Content
[0004] The utility model proposes a bridge expansion joint structure, which solves the problem that the replacement method of the rubber sealing strip needs to use a prop to take out the rubber sealing strip from the clamping position of the upper connecting block of the F side beam and the lower connecting block of the F side beam, which is relatively cumbersome and causes great wear to the upper connecting block of the F side beam and the lower connecting block of the F side beam.
[0005] The technical solution of the utility model is as follows:
[0006] A bridge expansion joint structure comprises an F-side beam upper connecting block, a F-side beam lower connecting block is fixedly arranged at the lower end of the F-side beam upper connecting block, an anchor plate is welded and fixed to one end of the F-side beam lower connecting block, an anchor rib is welded and fixed to the bottom end of the anchor plate, a rubber sealing strip is embedded on the inner side of the F-side beam upper connecting block, a movable groove is provided inside the F-side beam upper connecting block, a limiting plate is slidably connected inside the movable groove, a sliding groove is provided inside the F-side beam lower connecting block, a sliding block is slidably connected inside the sliding groove, the top of the sliding block passes through the sliding groove and is fixedly connected to the limiting plate, one end of the limiting plate is fixedly connected to a first limiting block, a first limiting groove is provided inside the F-side beam upper connecting block, and the first limiting block is inserted and embedded inside the first limiting groove.
[0007] Preferably, the positions of the first limiting block and the first limiting groove correspond to each other, an array of first limiting blocks are arranged on the side of the limiting plate, and an array of first limiting grooves are opened inside the upper half connecting block of the F side beam.
[0008] Preferably, an auxiliary groove is provided inside the sliding block, a sliding rod is slidably connected inside the auxiliary groove, two ends of the sliding rod are fixedly connected to the inner wall of the sliding groove, and a spring is wound around the outer wall of the sliding rod.
[0009] Preferably, one end of the spring is fixedly connected to the sliding block, and the other end of the spring is fixedly connected to the inner wall of the sliding groove.
[0010] Preferably, a protective cover is rotatably connected to the top of the movable groove, a second limiting block is bonded and fixed inside the protective cover, a second limiting groove is formed at the top of the limiting plate, and the second limiting block is inserted into the second limiting groove.
[0011] Preferably, a filling pad is sleeved inside the movable groove, and the material of the filling pad is set to be rubber material.
[0012] The working principle and beneficial effects of the utility model are:
[0013] In the utility model, the limit plate is pulled outwards so that the sliding block slides inside the sliding groove, and then the first limit block is separated from the first limit groove, so that the limit plate contacts the limit of the upper connecting block of the F side beam, so that the upper connecting block of the F side beam and the lower connecting block of the F side beam can be released from the limit fixation, and the upper connecting block of the F side beam is separated outwards from the lower connecting block of the F side beam, so that the rubber sealing strip loses the clamping fixing structure, so that the rubber sealing strip can be replaced and repaired, which greatly improves the speed of cleaning and replacing the rubber sealing strip and improves the efficiency of maintaining the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the upper half connecting block of the F side beam of the utility model;
[0016] Figure 2 This is a schematic diagram of a three-dimensional partial cross-sectional structure of the lower half connecting block of the F side beam of the utility model;
[0017] Figure 3 For this utility model Figure 2 A magnified view of the structure at A;
[0018] Figure 4 This is a schematic diagram of the partial cross-sectional structure of the lower half connecting block of the F side beam of the utility model;
[0019] Figure 5 For this utility model Figure 4 Enlarged view of the structure at B.
[0020] In the figure: 1. F side beam upper connecting block; 2. F side beam lower connecting block; 3. anchor plate; 4. anchor rib; 5. rubber sealing strip; 6. movable groove; 7. limit plate; 8. first limit groove; 9. first limit block; 10. sliding groove; 11. sliding block; 12. auxiliary groove; 13. sliding rod; 14. spring; 15. filling pad; 16. protective cover; 17. second limit block; 18. second limit groove. DETAILED DESCRIPTION
[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] Refer to the instruction manual Figure 1-5 , including an F side beam upper connecting block 1, a F side beam lower connecting block 2 is fixedly arranged at the lower end of the F side beam upper connecting block 1, an anchor plate 3 is welded and fixed at one end of the F side beam lower connecting block 2, an anchor rib 4 is welded and fixed at the bottom end of the anchor plate 3, a rubber sealing strip 5 is embedded on the inner side of the F side beam upper connecting block 1, a movable groove 6 is opened inside the F side beam upper connecting block 1, a limiting plate 7 is slidably connected inside the movable groove 6, a sliding groove 10 is opened inside the F side beam lower connecting block 2, a sliding block 11 is slidably connected inside the sliding groove 10, the top of the sliding block 11 passes through the sliding groove 10 and is fixedly connected to the limiting plate 7, one end of the limiting plate 7 is fixedly connected to the first limiting block 9, a first limiting groove 8 is opened inside the F side beam upper connecting block 1, and the first limiting block 9 is inserted and arranged inside the first limiting groove 8; under normal conditions, the F side beam The upper connecting block 1 and the lower connecting block 2 of the F side beam are in a fixed state, and the rubber sealing strip 5 is fixed by the card connection and insertion of the upper connecting block 1 of the F side beam and the lower connecting block 2 of the F side beam. When the rubber sealing strip 5 needs to be replaced, the limiting plate 7 is pulled so that the sliding block 11 at the bottom end of the limiting plate 7 slides on the sliding groove 10, driving the limiting plate 7 to move inside the moving groove 6. When the limiting plate 7 moves to the first limiting block 9 and completely disengages from the first limiting groove 8, the limiting plate 7 releases the limiting of the upper connecting block 1 of the F side beam and the lower connecting block 2 of the F side beam, and at this time moves upward and disengages from the lower connecting block 2 of the F side beam, so that the rubber sealing strip 5 is exposed to the outside and fixed by contact insertion. The rubber sealing strip 5 can thus be replaced, maintained, and repaired, thereby improving the efficiency of repairing and replacing the rubber sealing strip 5.
[0023] Then, the positions of the first limit block 9 and the first limit groove 8 correspond to each other, an array of first limit blocks 9 are arranged on the side of the limit plate 7, and an array of first limit grooves 8 are opened inside the upper half connecting block 1 of the F side beam; the first limit block 9 is inserted into the first limit groove 8 so that the limit plate 7 limits the upper half connecting block 1 of the F side beam, and the setting of the first limit block 9 and the first limit groove 8 also improves the limiting effect of the limit plate 7 on the upper half connecting block 1 of the F side beam.
[0024] Then, an auxiliary groove 12 is opened inside the sliding block 11, and a sliding rod 13 is slidably connected inside the auxiliary groove 12. Both ends of the sliding rod 13 are fixedly connected to the inner wall of the sliding groove 10, and a spring 14 is wound around the outer wall of the sliding rod 13. Through this structure, when the limit plate 7 moves, the sliding block 11 moves on the sliding rod 13 through the auxiliary groove 12, thereby ensuring the stable movement of the sliding block 11.
[0025] Next, one end of the spring 14 is fixedly connected to the sliding block 11, and the other end of the spring 14 is fixedly connected to the inner wall of the sliding groove 10; the elastic performance of the spring 14 is used to reset the sliding block 11, so that the sliding block 11 drives the limiting plate 7 to fit the inner wall of the upper connecting block 1 of the F side beam, so that the first limiting block 9 is inserted and fixed to the first limiting groove 8, thereby ensuring the normal use of the equipment.
[0026] At this time, a protective cover 16 is rotatably connected to the top of the movable groove 6, and a second limit block 17 is bonded and fixed inside the protective cover 16. A second limit groove 18 is opened at the top of the limit plate 7, and the second limit block 17 is inserted into the second limit groove 18; through this structure, the F side beam upper connecting block 1 can effectively protect the parts inside the movable groove 6 by covering with the protective cover 16 in the normal state to ensure the normal operation of the equipment, and its second limit block 17 is inserted into the second limit groove 18. This limiting method also allows the first limit block 9 on the limit plate 7 to better limit the first limit groove 8.
[0027] It should be noted that a filling pad 15 is sleeved inside the movable groove 6, and the material of the filling pad 15 is set to be rubber material; through this mechanism, when the limiting plate 7 is inserted and fixed to the movable groove 6, the filling pad 15 is inserted inside the movable groove 6, so that the space of the limiting plate 7 is compressed, thereby ensuring the shaking effect of the limiting plate 7 in the movable groove 6, and ensuring the stability of the upper half connecting block 1 of the F side beam and the lower half connecting block 2 of the F side beam in the fixed state.
[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A bridge expansion joint structure, comprising an F side beam upper half connection block (1), characterized in that: The lower end of the F side beam upper half connection block (1) is fixedly provided with an F side beam lower half connection block (2); an anchor plate (3) is welded and fixed to one end of the F side beam lower half connection block (2); an anchor rib (4) is welded and fixed to the bottom end of the anchor plate (3); a rubber sealing strip (5) is embedded and provided inside the F side beam upper half connection block (1); a movable groove (6) is provided inside the F side beam upper half connection block (1); a limit plate (7) is slidably connected inside the movable groove (6); a sliding groove (10) is provided inside the F side beam lower half connection block (2); a sliding block (11) is slidably connected inside the sliding groove (10); a top end of the sliding block (11) passes through the sliding groove (10) and is fixedly connected to the limit plate (7); a first limit block (9) is fixedly connected to one end of the limit plate (7); a first limit groove (8) is provided inside the F side beam upper half connection block (1); the first limit block (9) is inserted and arranged inside the first limit groove (8).
2. A bridge expansion joint structure according to claim 1, characterized in that: The positions of the first limiting blocks (9) and the first limiting grooves (8) correspond to each other, a plurality of first limiting blocks (9) are arranged on the side of the limiting plate (7), and a plurality of first limiting grooves (8) are arranged inside the upper half connecting block (1) of the F side beam.
3. A bridge expansion joint structure according to claim 1, characterized in that: An auxiliary groove (12) is provided inside the sliding block (11), a sliding rod (13) is slidably connected inside the auxiliary groove (12), both ends of the sliding rod (13) are fixedly connected to the inner wall of the sliding groove (10), and a spring (14) is wound around the outer wall of the sliding rod (13).
4. A bridge expansion joint structure according to claim 3, characterized in that: One end of the spring (14) is fixedly connected to one end of the sliding block (11), and the other end of the spring (14) is fixedly connected to the inner wall of the sliding groove (10).
5. The bridge expansion joint structure according to claim 1, characterized in that: The top end of the movable groove (6) is rotatably connected to a protective cover (16), a second limiting block (17) is bonded and fixed inside the protective cover (16), a second limiting groove (18) is formed at the top end of the limiting plate (7), and the second limiting block (17) is inserted into the second limiting groove (18).
6. The bridge expansion joint structure according to claim 1, characterized in that: A filling pad (15) is sleeved inside the movable groove (6), and the material of the filling pad (15) is set to be rubber material.