Novel road and bridge expansion joint device

Abstract

The utility model relates to the technical field of roads and bridges, and discloses a novel road and bridge expansion joint device which comprises a left roadbed and a right roadbed, an expansion joint is formed between the left roadbed and the right roadbed, a noise reduction assembly is arranged at the top of an inner cavity of the expansion joint, and the noise reduction assembly comprises a fixing block. Fixing frames are slidably connected to the two sides of an inner cavity of the expansion joint correspondingly, first springs are fixedly connected to the sides, opposite to each other, of inner cavities of the two fixing frames correspondingly, and first dampers are arranged in inner cavities of the first springs. By arranging the noise reduction assembly, noise reduction treatment can be carried out when the wheel passes through the expansion joint, the outer surface of the wheel is used as a surface load to extrude the noise reduction pad, the noise reduction pad transmits force downwards through the two fixing frames, then the buffer assembly can be extruded, and a second spring and a second damper are arranged, so that the noise reduction effect is improved. And transverse extrusion force can be buffered, the purpose that a noise reduction device is arranged in the expansion joint is achieved, and finally the purpose of reducing noise is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of roads and bridges, in particular to a novel road and bridge expansion joint device. Background Art

[0002] In order to coordinate the rotation and longitudinal displacement of the bridge ends caused by natural factors, such as the longitudinal deformation of the bridge deck due to expansion or contraction when the temperature of the bridge changes, the vehicle load will also cause the rotation and longitudinal displacement of the beam end. In order to allow vehicles to pass through the bridge deck smoothly and meet the deformation of the bridge deck, it is necessary to set a certain expansion device at the expansion joint of the bridge deck. This device is called a road bridge deck expansion joint device or expansion joint. However, there is no noise reduction device in the expansion joints set on roads and bridges, and noise will be generated when vehicles pass. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of the utility model is to provide a novel road bridge expansion joint device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel road bridge expansion joint device, comprising a left roadbed and a right roadbed, an expansion joint is opened between the left roadbed and the right roadbed, a noise reduction component is arranged on the top of the inner cavity of the expansion joint, the noise reduction component comprises a fixed block, both sides of the inner cavity of the expansion joint are slidably connected with fixed frames, the opposite sides of the inner cavities of the two fixed frames are fixedly connected with a first spring, the inner cavity of the first spring is provided with a first damper, the other end of the first spring is fixedly connected to the fixed block, and the tops of the two fixed frames are fixedly connected with noise reduction pads.

[0005] By adopting the above technical solution and setting up a noise reduction component, noise reduction can be performed when the wheel passes through the expansion joint, wherein the outer surface of the wheel is used as a surface load to squeeze the noise reduction pad, and the noise reduction pad transmits force downward through two fixed frames, thereby squeezing the buffer component, and the setting of the second spring and the second damper can buffer the squeezing force, thereby realizing the placement of the noise reduction device in the expansion joint, and ultimately achieving the purpose of reducing noise.

[0006] Preferably, a buffer assembly is provided at the bottom of the inner cavity of the expansion joint, and the buffer assembly includes two support plates, and the bottoms of the two support plates are both slidably connected to a connecting plate.

[0007] Preferably, the tops of the two support plates are fixedly connected with second springs, the tops of the second springs are fixedly connected with the fixing frame, and the inner cavity of the second springs is provided with a second damper.

[0008] By adopting the above technical solution, when the spacing of the expansion joints is reduced, the left roadbed and the right roadbed at both ends will exert a lateral squeezing force on the two fixed frames inward, and the two fixed frames will squeeze the first spring and the first damper, and at the same time the first spring and the first damper will increase the buffering force on the two fixed frames.

[0009] Preferably, a first slide groove is provided on one side opposite to the left roadbed and the right roadbed, a first slider is slidably connected to the inner cavity of the first slide groove, and the other end of the first slider is fixedly connected to a fixing frame.

[0010] By adopting the above technical solution, the fixed frame can be limited and guided to move, thereby increasing the stability of the longitudinal movement.

[0011] Preferably, second slide grooves are provided at the top and bottom of the inner cavities of the two fixing frames, a second sliding block is slidably connected to the inner cavity of the second slide groove, and the other end of the second sliding block is fixedly connected to the fixing block.

[0012] By adopting the above technical solution, the fixed block can be limited and guided to move, thereby increasing the stability of the lateral movement of the two fixed frames.

[0013] Preferably, a third sliding groove is formed at the bottom of the two support plates, a third sliding block is slidably connected to the inner cavity of the third sliding groove, and the bottom of the third sliding block is fixedly connected to the connecting plate.

[0014] By adopting the above technical solution, the connection plate can be limited and guided to move, thereby increasing the stability of the lateral movement of the two support plates.

[0015] Preferably, the noise reduction pad has a thickness of five millimeters and is made of polyurethane sound-absorbing material.

[0016] By adopting the above technical solution, the noise reduction performance is increased and the noise reduction effect is improved.

[0017] Preferably, surfaces of the first spring and the second spring are coated with anti-rust paint.

[0018] By adopting the above technical solution, the surfaces of the first spring and the second spring can be prevented from rusting, thereby affecting the buffering effect.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] The utility model can perform noise reduction when the wheel passes through the expansion joint by arranging a noise reduction component, wherein the outer surface of the wheel is used as a surface load to squeeze the noise reduction pad, and the noise reduction pad transmits force downward through two fixed frames, thereby squeezing the buffer component, and the arrangement of the second spring and the second damper can buffer the lateral squeezing force, thereby realizing the placement of the noise reduction device in the expansion joint, and ultimately achieving the purpose of reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0023] Figure 3 The utility model structure Figure 1 A partial enlarged view of the middle A;

[0024] Figure 4 The utility model structure Figure 2 A partial enlarged view of point B in the middle;

[0025] Figure 5 The utility model structure Figure 2 A partial enlarged view of point C in the middle;

[0026] Figure 6 It is a three-dimensional diagram of two fixed frames in the structure of the utility model.

[0027] In the figure: 1. left roadbed; 2. right roadbed; 3. expansion joint; 4. noise reduction assembly; 401. fixed block; 402. fixed frame; 403. first spring; 404. first damper; 405. noise reduction pad; 5. buffer assembly; 501. support plate; 502. connecting plate; 503. second spring; 504. second damper; 6. first slide groove; 7. first slider; 8. second slide groove; 9. second slider; 10. third slide groove; 11. third slider. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in 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 in 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.

[0029] Embodiment 1:

[0030] See also Figure 1-6A novel road bridge expansion joint device comprises a left roadbed 1 and a right roadbed 2, an expansion joint 3 is opened between the left roadbed 1 and the right roadbed 2, a noise reduction component 4 is arranged on the top of the inner cavity of the expansion joint 3, the noise reduction component 4 comprises a fixed block 401, both sides of the inner cavity of the expansion joint 3 are slidably connected with fixed frames 402, the opposite sides of the inner cavities of the two fixed frames 402 are fixedly connected with first springs 403, the inner cavity of the first spring 403 is provided with a first damper 404, the other end of the first spring 403 is fixedly connected to the fixed block 401, and the two A noise reduction pad 405 is fixedly connected to the top of each fixed frame 402. By setting the noise reduction component 4, noise reduction can be performed when the wheel passes through the expansion joint 3, wherein the outer surface of the wheel is used as a surface load to squeeze the noise reduction pad 405, and the noise reduction pad 405 transmits force downward through the two fixed frames 402, thereby squeezing the buffer component 5. The second spring 503 and the second damper 504 are set to buffer the squeezing force, thereby realizing the placement of a noise reduction device in the expansion joint 3, and ultimately achieving the purpose of reducing noise.

[0031] Embodiment 2:

[0032] See also Figure 1-6A novel road bridge expansion joint device comprises a left roadbed 1 and a right roadbed 2. A buffer assembly 5 is arranged at the bottom of the inner cavity of the expansion joint 3. The buffer assembly 5 comprises two support plates 501. The bottoms of the two support plates 501 are both slidably connected with a connecting plate 502. The tops of the two support plates 501 are both fixedly connected with a second spring 503. The top of the second spring 503 is fixedly connected with a fixing frame 402. The inner cavity of the second spring 503 is provided with a second damper 504. When the spacing of the expansion joint 3 is reduced, the second damper 504 can be used to reduce the pressure of the expansion joint 3. When the left roadbed 1 and the right roadbed 2 at both ends exert a lateral extrusion force on the two fixed frames 402, and the two fixed frames 402 squeeze the first spring 403 and the first damper 404. At the same time, the first spring 403 and the first damper 404 increase the buffering force on the two fixed frames 402. The left roadbed 1 and the right roadbed 2 are both provided with a first slide groove 6 on the opposite side. The inner cavity of the first slide groove 6 is slidably connected with a first slider 7. The other end of the first slider 7 is fixedly connected to the fixed frame 402. , can limit the movement of the fixed frame 402, increase the stability of the longitudinal movement, the top and bottom of the inner cavity of the two fixed frames 402 are provided with a second slide groove 8, the inner cavity of the second slide groove 8 is slidably connected with a second slider 9, the other end of the second slider 9 is fixedly connected to the fixed block 401, can limit the movement of the fixed block 401, increase the stability of the lateral movement of the two fixed frames 402, the bottom of the two support plates 501 are provided with a third slide groove 10, the inner cavity of the third slide groove 10 is slidably connected with a third slider 11, the bottom of the third slider 11 is fixedly connected to the connecting plate 502, can limit the movement of the connecting plate 502, increase the stability of the lateral movement of the two support plates 501, the thickness of the noise reduction pad 405 is five millimeters, and the material is made of polyurethane sound-absorbing material to increase the noise reduction performance and improve the noise reduction effect, the surface of the first spring 403 and the second spring 503 are coated with anti-rust paint, the surface of the first spring 403 and the second spring 503 can be rusted, affecting the buffering effect.

[0033] The principle of this embodiment is:

[0034] When in use, the outer surface of the wheel as a surface load will squeeze the two noise reduction pads 405 respectively, and the noise reduction pads 405 transmit the vertical squeezing force downward through the two fixed frames 402, and the two fixed frames 402 will transmit the squeezing force downward, which can be transmitted to the second spring 503 and the second damper 504, and then the buffer assembly 5 can be squeezed, and the second spring 503 and the second damper 504 are set to buffer the squeezing force, so that the noise reduction device is placed in the expansion joint 3, and finally the noise reduction is reduced. For the purpose of noise reduction, when the spacing of the expansion joint 3 is reduced, the left roadbed 1 and the right roadbed 2 at both ends will exert a lateral extrusion force on the two fixed frames 402 inward, and the two fixed frames 402 will squeeze the first spring 403 and the first damper 404. At the same time, the first spring 403 and the first damper 404 will increase the buffering force on the two fixed frames 402. At the same time, the two support plates 501 will also realize automatic displacement adjustment under the sliding cooperation of the third slide groove 10 and the third slider 11, so that the vehicle can pass through the bridge deck smoothly and meet the deformation of the bridge deck.

[0035] To sum up: this new type of road bridge expansion joint device, by setting up a noise reduction component 4, can perform noise reduction when the wheel passes through the expansion joint 3, wherein the outer surface of the wheel is used as a surface load to squeeze the noise reduction pad 405, and the noise reduction pad 405 transmits force downward through two fixed frames 402, thereby being able to squeeze the buffer component 5, and the setting of the second spring 503 and the second damper 504 can buffer the squeezing force, thereby realizing the placement of the noise reduction device in the expansion joint 3, and ultimately achieving the purpose of reducing noise.

[0036] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel road bridge expansion joint device, comprising a left roadbed (1) and a right roadbed (2), characterized in that: An expansion joint (3) is provided between the left roadbed (1) and the right roadbed (2); a noise reduction component (4) is arranged at the top of the inner cavity of the expansion joint (3); the noise reduction component (4) comprises a fixed block (401); both sides of the inner cavity of the expansion joint (3) are slidably connected with fixed frames (402); the opposite sides of the inner cavities of the two fixed frames (402) are fixedly connected with first springs (403); the inner cavity of the first spring (403) is provided with a first damper (404); the other end of the first spring (403) is fixedly connected to the fixed block (401); and the tops of the two fixed frames (402) are fixedly connected with noise reduction pads (405).

2. A novel road bridge expansion joint device according to claim 1, characterized in that: A buffer assembly (5) is provided at the bottom of the inner cavity of the expansion joint (3), and the buffer assembly (5) comprises two support plates (501), and the bottoms of the two support plates (501) are both slidably connected to a connecting plate (502).

3. A novel road bridge expansion joint device according to claim 2, characterized in that: The tops of the two support plates (501) are fixedly connected to second springs (503), the tops of the second springs (503) are fixedly connected to the fixing frame (402), and the inner cavity of the second springs (503) is provided with a second damper (504).

4. A novel road bridge expansion joint device according to claim 1, characterized in that: A first slide groove (6) is provided on the opposite side of the left roadbed (1) and the right roadbed (2); the inner cavity of the first slide groove (6) is slidably connected to a first slider (7); the other end of the first slider (7) is fixedly connected to a fixed frame (402).

5. A novel road bridge expansion joint device according to claim 1, characterized in that: A second slide groove (8) is provided at the top and bottom of the inner cavity of the two fixed frames (402), and a second slider (9) is slidably connected to the inner cavity of the second slide groove (8), and the other end of the second slider (9) is fixedly connected to the fixed block (401).

6. A novel road bridge expansion joint device according to claim 3, characterized in that: A third sliding groove (10) is provided at the bottom of the two support plates (501), the inner cavity of the third sliding groove (10) is slidably connected to a third sliding block (11), and the bottom of the third sliding block (11) is fixedly connected to the connecting plate (502).

7. A novel road bridge expansion joint device according to claim 1, characterized in that: The noise reduction pad (405) has a thickness of five millimeters and is made of polyurethane sound-absorbing material.

8. The novel road bridge expansion joint device according to claim 1 is characterized by: The surfaces of the first spring (403) and the second spring (503) are both coated with anti-rust paint.

Images