Bridge expansion joint device with damping and buffering functions

Abstract

The utility model discloses a bridge expansion joint device with damping and buffering functions, which belongs to the technical field of bridge expansion joints, and comprises a bridge main body, a mounting groove is arranged on the side wall of the bridge main body, a frame is arranged in the mounting groove, a clamping groove is arranged on the side wall of the frame, and the clamping groove is arranged in the mounting groove. Two clamping grooves are formed in the two side frames, rubber belts are arranged in the two clamping grooves, a damping and buffering mechanism is arranged between the two side frames, and buffering and guiding mechanisms are arranged on the side walls of the side frames. The damping buffer mechanism supports the rubber strip, the damping buffer mechanism can absorb impact force borne by the rubber strip, through the combined design of the connecting rod, the buffer column and the buffer air cushion, vibration energy from a bridge floor is effectively absorbed, the damage risk of a bridge structure due to vibration is reduced, the safety of a bridge is improved, and the service life of the bridge is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of bridge expansion joint technology, and in particular to a bridge expansion joint device with shock absorption and buffering function. Background Technology

[0002] In bridge engineering, bridge expansion joints are a crucial component of bridge construction. They are mainly used to regulate the displacement and connection between the superstructure caused by factors such as vehicle loads, temperature changes, concrete shrinkage, load action, pier settlement, and creep. The purpose of setting up bridge expansion joints is to ensure that the bridge can maintain structural stability and driving safety and comfort under various deformation conditions. When vehicles pass through bridge expansion joints, they often generate large impact forces and vibrations, which not only affect the stability and comfort of driving but may also cause potential damage to the bridge structure.

[0003] Existing bridge expansion joint devices are difficult to adjust when used, hard to adapt to different operating environments, and difficult to adjust the connection size. They have a limited range of applications, require replacement, increase labor burden, reduce work efficiency, have complex structures, and are cumbersome to operate, which hinders their promotion and use.

[0004] An existing patent (publication number: CN221029587U) discloses a bridge expansion joint device, relating to the field of bridge expansion joint technology. This device includes an installation plate, a connecting mechanism, and a fixing mechanism. Two sets of installation plates are provided. The connecting mechanism is located between the two sets of installation plates and includes a connecting plate, a first connecting box, and a second connecting box. Two sets of slots are provided on the outer side of the installation plates. A connecting plate is slidably installed in one set of slots, and the first connecting box is fixedly installed on the outer side of one set of connecting plates. The second connecting box is fixedly installed on the outer side of the other set of connecting plates. This bridge expansion joint device allows for easy adaptation to expansion joints of different sizes by replacing the first and second connecting boxes. The sliding installation of the connecting plate in one set of slots connects the second and first connecting boxes to the installation plate, facilitating adaptation to different usage environments. The device can be easily fixed by pouring concrete onto the installation ring and fixing plate.

[0005] To address the aforementioned issues, existing patents have provided solutions, but these solutions cannot effectively mitigate the impact forces on bridges. In the prior art, bridge expansion joints cannot effectively alleviate the impact forces generated by vehicles, thus affecting the stability of the bridge.

[0006] Therefore, a bridge expansion joint device with shock absorption and buffering function is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a bridge expansion joint device with shock absorption and buffering function, which can solve the problem that existing bridge expansion joint devices cannot absorb and buffer the impact force on the bridge. In the prior art, bridge expansion joints cannot effectively alleviate the impact force generated when vehicles are driving, which affects the stability of the bridge.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a bridge expansion joint device with shock absorption and buffering function, comprising a bridge body, an installation groove on the side wall of the bridge body, a frame installed inside the installation groove, a slot on the side wall of the frame, a rubber strip inside the two slots, a shock absorption and buffering mechanism between the two frames, and a buffering guide mechanism on the side wall of the frame.

[0009] The shock absorption and buffer mechanism includes a bottom plate and a top plate disposed inside the frame. The bottom plate contacts the side wall of the frame. Connecting rods are hinged to the side walls of both the bottom plate and the top plate. The other ends of the two connecting rods are hinged together. Buffer columns are fixedly connected to the side walls of both the bottom plate and the top plate. A buffer air cushion is disposed between the two buffer columns. Two sliding frames are fixedly connected to the top of the top plate. Slider blocks are movably disposed inside the sliding frames. An arc-shaped plate is fixedly connected to the top of multiple slider blocks. The top of the arc-shaped plate contacts a rubber strip.

[0010] Preferably, the buffer guide mechanism includes a mounting base fixedly connected to the side wall of the frame, a guide frame fixedly connected to the side wall of the mounting base, a guide block movably disposed inside the guide frame, a connecting rod installed in the middle of the guide block, a guide groove formed on the side wall of the guide frame, the connecting rod movably connected to the guide groove, and both ends of the connecting rod being hinged to a connecting rod.

[0011] Preferably, a buffer spring is provided inside the guide frame, and the two ends of the buffer spring are in contact with the mounting base and the guide block, respectively.

[0012] Preferably, two side plates are installed on the top of the base plate, and a limiting frame is fixedly connected to the side wall of the two side plates, the limiting frame being located outside the air cushion.

[0013] Preferably, an adjusting rod is threadedly connected to the middle of the side plate, and an adjusting plate is movably disposed inside the limiting frame, with one end of the adjusting rod rotatably connected to the adjusting plate.

[0014] Preferably, two movable slots are provided at both ends of the base plate, and multiple movable screws are fixedly connected to the side wall of the frame. The movable screws are located inside the movable slots, and limit screw blocks are threadedly connected to the movable screws. The side wall of the limit screw blocks is in contact with the base plate.

[0015] Preferably, multiple limiting strips are bolted to the side wall of the frame, with two limiting strips arranged as a group, and the two limiting strips located on both sides of the base plate.

[0016] Preferably, two grooves are formed on the inner wall of the guide frame, and protrusions are fixedly connected to both sides of the guide block, with the protrusions matching the grooves.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application incorporates a shock-absorbing and buffering mechanism. This process uses rubber strips to shield and protect the expansion joint between the two main bridge structures. Due to the deformability of the rubber strip material, it can deform when the main bridge structure is subjected to external forces and vibrations. The shock-absorbing and buffering mechanism supports the rubber strip. When vehicles pass over it, the shock-absorbing and buffering mechanism can absorb the impact force on the rubber strip. Through the combined design of connecting rods, buffer columns, and buffer air cushions, it effectively absorbs the vibration energy from the bridge deck, reduces the risk of damage to the bridge structure due to vibration, and improves the safety and service life of the bridge. The contact design between the rubber strip and the curved plate allows the expansion joint to adapt to the expansion and contraction deformation of the bridge caused by temperature changes, load changes, etc., while maintaining the stability and sealing of the structure.

[0019] 2. This application incorporates a buffer guide mechanism, which supports and guides the hinged movement of the connecting rods, thereby providing buffer support for the top and bottom plates. The guide block drives the hinge joints of the two connecting rods to move within the guide frame, thus guiding the connecting rods and ensuring the stability and reliability of the expansion joint device. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is an overall structural view of the present invention;

[0022] Figure 2 This is a three-dimensional cross-sectional view of the present invention;

[0023] Figure 3 This is a structural view of the connecting rod, buffer column, and buffer air cushion in this utility model;

[0024] Figure 4 This is a structural view of the shock absorption and buffer mechanism in this utility model;

[0025] Figure 5 This is a structural view of the limiting frame, adjusting rod, and adjusting plate in this utility model;

[0026] Figure 6 This is a structural view of the groove and protrusion in this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Bridge main body; 2. Mounting groove; 3. Frame; 4. Slot; 5. Rubber belt; 6. Shock absorption and buffer mechanism; 7. Buffer guide mechanism; 61. Base plate; 62. Top plate; 63. Connecting rod; 64. Buffer column; 65. Buffer air cushion; 66. Sliding frame; 67. Sliding block; 68. Curved plate; 71. Mounting seat; 72. Guide frame; 73. Guide block; 74. Connecting rod; 75. Guide groove; 8. Buffer spring; 9. Side plate; 10. Limiting frame; 11. Adjusting rod; 12. Adjusting plate; 13. Movable groove; 14. Movable screw; 15. Limiting screw block; 16. Limiting strip; 17. Groove; 18. Protrusion. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1 to 6 This utility model provides a technical solution:

[0031] A bridge expansion joint device with shock absorption and buffering function includes a bridge body 1, an installation groove 2 is provided on the side wall of the bridge body 1, a frame 3 is installed inside the installation groove 2, a slot 4 is provided on the side wall of the frame 3, a rubber strip 5 is provided inside the two slots 4, a shock absorption and buffering mechanism 6 is provided between the two frame 3, and a buffering guide mechanism 7 is provided on the side wall of the frame 3.

[0032] The shock absorption and buffer mechanism 6 includes a bottom plate 61 and a top plate 62 disposed inside the frame 3. The bottom plate 61 contacts the side wall of the frame 3. A connecting rod 63 is hinged to the side wall of both the bottom plate 61 and the top plate 62. The other ends of the two connecting rods 63 are hinged together. A buffer column 64 is fixedly connected to the side wall of both the bottom plate 61 and the top plate 62. A buffer air cushion 65 is disposed between the two buffer columns 64. Two sliding frames 66 are fixedly connected to the top of the top plate 62. A slider 67 is movably disposed inside the sliding frame 66. An arc plate 68 is fixedly connected to the top of the multiple sliders 67. The top of the arc plate 68 contacts the rubber belt 5.

[0033] Specifically, such as Figure 4 As shown, two side plates 9 are installed on the top of the base plate 61, and a limiting frame 10 is fixedly connected to the side wall of the two side plates 9. The limiting frame 10 is located outside the air cushion.

[0034] Specifically, such as Figure 5 As shown, an adjusting rod 11 is threadedly connected to the middle of the side plate 9, and an adjusting plate 12 is movably arranged inside the limiting frame 10. One end of the adjusting rod 11 is rotatably connected to the adjusting plate 12.

[0035] Specifically, such as Figure 4 As shown, two movable slots 13 are opened at both ends of the base plate 61. Multiple movable screws 14 are fixedly connected to the side wall of the frame 3. The movable screws 14 are located inside the movable slots 13. Limiting screw blocks 15 are threadedly connected to the movable screws 14. The side wall of the limiting screw block 15 is in contact with the base plate 61.

[0036] Specifically, such as Figure 4 As shown, multiple limiting strips 16 are bolted to the side wall of the frame 3. Two limiting strips 16 are set as a group, and the two limiting strips 16 are located on both sides of the base plate 61.

[0037] In use, the expansion joint between the two main bridge sections 1 is first protected by rubber strips. Because the rubber strips are deformable, they can deform when the main bridge section 1 experiences vibration. The bottom plate 61 and top plate 62 are hinged together by a connecting rod 63. This hinged connection allows the top plate 62 to have a certain vertical displacement relative to the bottom plate 61, thereby absorbing vertical vibrations from the bridge deck. The buffer air cushion 65 is located between two buffer columns 64. Through the compression and release of the gas inside, it further absorbs and disperses vibration energy, improving... To improve shock absorption, the limiting frame 10 protects the air cushion from deformation. The movement of the adjusting plate 12 driven by the adjusting rod 11 can adjust the deformation range of the air cushion inside the limiting frame 10. The sliding frame 66 on the top plate 62 allows the slider 67 to slide inside it. This design allows the arc plate 68 to adjust its position according to the deformation of the rubber belt 5, ensuring the stability of the rubber belt 5 during the extension and contraction process and further absorbing vibration. The movement of the base plate 61 can be restricted by the setting of the movable groove 13, the movable screw 14 and the limiting strip 16.

[0038] Specifically, such as Figure 4 As shown, the buffer guide mechanism 7 includes a mounting base 71 fixedly connected to the side wall of the frame 3. A guide frame 72 is fixedly connected to the side wall of the mounting base 71. A guide block 73 is movably arranged inside the guide frame 72. A connecting rod 74 is installed in the middle of the guide block 73. A guide groove 75 is opened on the side wall of the guide frame 72. The connecting rod 74 is movably connected to the guide groove 75. Both ends of the connecting rod 74 are hinged to the connecting rod 63.

[0039] Specifically, such as Figure 4 As shown, a buffer spring 8 is provided inside the guide frame 72, and the two ends of the buffer spring 8 are in contact with the mounting base 71 and the guide block 73, respectively.

[0040] Specifically, such as Figure 6 As shown, two grooves 17 are provided on the inner wall of the guide frame 72, and protrusions 18 are fixedly connected to both sides of the guide block 73, with the protrusions 18 matching the grooves 17.

[0041] When the top plate 62 presses against the bottom plate 61, the connecting rod 63 is hinged, and displacement occurs at the hinge of the connecting rod 63. At this time, the connecting rod 74 causes the connecting rod 63 to drive the guide block 73 to move inside the guide frame 72. This process guides and restricts the hinge movement at both ends of the connecting rod 63. The buffer spring 8 can buffer and support the movement of the guide block 73, further absorbing the vibration energy from the bridge deck, and ensuring the stability and reliability of the expansion joint device.

[0042] By adopting the above technical solution, the problem that existing bridge expansion joint devices cannot dampen and buffer the impact force on the bridge is solved. In the existing technology, bridge expansion joints cannot effectively alleviate the impact force generated when vehicles are driving, which affects the stability of the bridge.

[0043] Working Principle: In use, this application first uses rubber strips to shield and protect the expansion joint between the two main bridge sections 1. Because the rubber strips are deformable, they can deform when the main bridge section 1 experiences vibration due to external forces. The bottom plate 61 and top plate 62 are hinged together by connecting rod 63. This hinged connection allows the top plate 62 to have a certain vertical displacement relative to the bottom plate 61, thereby absorbing vertical vibrations from the bridge deck. When the top plate 62 presses against the bottom plate 61, the connecting rod 63 engages, and displacement occurs at the hinge point. At this time, the connecting rod 74 causes the connecting rod 63 to drive the guide block 73 to move inside the guide frame 72. This process guides the hinged movement at both ends of the connecting rod 63. The movement of the guide block 73 is buffered and supported by the buffer spring 8, which further absorbs the vibration energy from the bridge deck. The buffer air cushion 65 is located between the two buffer pillars 64. Through the compression and release of the gas inside it, it further absorbs and disperses the vibration energy, improving the shock absorption effect. The limiting frame 10 protects the deformation of the air cushion. The deformation range of the air cushion inside the limiting frame 10 can be adjusted by driving the movement of the adjusting plate 12 through the adjusting rod 11. The sliding frame 66 on the top plate 62 allows the slider 67 to slide inside it. This design allows the arc plate 68 to adjust its position according to the deformation of the rubber belt 5, ensuring the stability of the rubber belt 5 during the extension and contraction process and further absorption of vibration.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A bridge expansion joint device having a shock absorbing buffering function, comprising a bridge main body (1), characterized in that: The side wall of the bridge body (1) is provided with a mounting groove (2), the inside of the mounting groove (2) is provided with a frame (3), the side wall of the frame (3) is provided with a clamping groove (4), the inside of the two clamping grooves (4) is provided with a rubber belt (5), the two frames (3) are provided with a damping buffer mechanism (6), the side wall of the frame (3) is provided with a buffer guide mechanism (7). The damping buffer mechanism (6) comprises a bottom plate (61) and a top plate (62) arranged in the frame (3), the side wall of the bottom plate (61) is in contact with the frame (3), the side wall of the bottom plate (61) and the top plate (62) is hingedly connected with a connecting rod (63), the other end of the two connecting rods (63) is hingedly connected, the side wall of the bottom plate (61) and the top plate (62) is fixedly connected with a buffer column (64), the two buffer columns (64) are provided with a buffer air cushion (65), the top of the top plate (62) is fixedly connected with two sliding frames (66), the inside of the sliding frame (66) is movably provided with a sliding block (67), the top of the plurality of sliding blocks (67) is fixedly connected with an arc plate (68), the top of the arc plate (68) is in contact with the rubber belt (5).

2. The bridge expansion joint device with shock absorption and buffering functions according to claim 1, characterized in that: The buffer guide mechanism (7) comprises a mounting seat (71) fixedly connected to the side wall of the frame (3), the side wall of the mounting seat (71) is fixedly connected with a guide frame (72), the inside of the guide frame (72) is movably provided with a guide block (73), the middle of the guide block (73) is provided with a connecting rod (74), the side wall of the guide frame (72) is provided with a guide groove (75), the connecting rod (74) is movably connected with the guide groove (75), the two ends of the connecting rod (74) are hingedly connected with the connecting rod (63).

3. The bridge expansion joint device with shock absorption and buffering functions according to claim 2, characterized in that: The inside of the guide frame (72) is provided with a buffer spring (8), the two ends of the buffer spring (8) are respectively in contact with the mounting seat (71) and the guide block (73).

4. The bridge expansion joint device with shock absorption and buffering functions according to claim 1, characterized in that: The top of the bottom plate (61) is provided with two side plates (9), the side wall of the two side plates (9) is fixedly connected with a limiting frame (10), the limiting frame (10) is located outside the air cushion.

5. The bridge expansion joint device with shock absorption and buffering functions according to claim 4, characterized in that: The middle of the side plate (9) is threadedly connected with an adjusting rod (11), the inside of the limiting frame (10) is movably provided with an adjusting plate (12), one end of the adjusting rod (11) is rotatably connected with the adjusting plate (12).

6. The bridge expansion joint device with shock absorption and buffering functions according to claim 1, characterized in that: The two ends of the bottom plate (61) are provided with two movable grooves (13), the side wall of the frame (3) is fixedly connected with a plurality of movable screws (14), the movable screws (14) are located in the movable grooves (13), the movable screws (14) are threadedly connected with a limiting screw block (15), the side wall of the limiting screw block (15) is in contact with the bottom plate (61).

7. The bridge expansion joint device with shock absorption and buffering functions according to claim 1, characterized in that: The side wall of the frame (3) is bolted with a plurality of limiting strips (16), the two limiting strips (16) are arranged in a group, and the two limiting strips (16) are located on both sides of the bottom plate (61).

8. The bridge expansion joint device with shock absorption and buffering functions according to claim 2, characterized in that: Two recesses (17) are formed in the inner wall of the guide frame (72), and the guide block (73) is fixedly connected with a protrusion (18) on both sides, which is matched with the recess (17).

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