S-shaped multidirectional displacement shock absorption, isolation and noise reduction expansion joint device

Abstract

The utility model discloses an S-shaped multidirectional displacement shock absorption, isolation and noise reduction expansion joint device, which relates to the technical field of bridge engineering, and comprises a rubber sealing plate, the left side and the right side of the upper part of the surface of the rubber sealing plate are uniformly provided with assembling grooves, and the left side and the right side of the lower part of the rubber sealing plate are both provided with embedded parts. A buffer rubber block is fixedly installed on the inner surface of the embedded part, a baffle is fixedly installed in the middle of the inner surface of the buffer rubber block, and two threaded cylinders are symmetrically and fixedly installed on the inner surface of the buffer rubber block along the baffle. Compared with an existing common expansion joint device, according to the S-shaped multidirectional displacement seismic isolation and noise reduction expansion joint device, vibration force generated when a vehicle passes through can be transmitted to a buffering rubber block in the embedded part through a building, the buffering rubber block can buffer vibration, the situation that a locking bolt is loosened due to the vibration is avoided, and then the mounting and fixing stability of the whole device is improved; and the whole embedded part can be supported by the barrier plate, so that the embedded part is prevented from deforming, and the threaded cylinder is extruded.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to an S-shaped multi-directional displacement vibration-isolating and noise-reducing expansion joint device. Background Art

[0002] The function of a bridge expansion joint is to ensure that the bridge structure can be adjusted to the changes in temperature, concrete shrinkage and creep, and load without generating additional internal forces, and to ensure smooth driving. Bridge expansion joints are usually set at the movable ends and abutments of the superstructure, as well as at the joints (holes) of the superstructure. For highway bridges, expansion joints are usually set along the transverse direction of the bridge on the roadway and sidewalk.

[0003] Traditional comb-plate expansion joints often utilize rigid connections. When a bridge experiences horizontal, vertical, and torsional changes due to wind, traffic, and the bridge's own load, the bolts securing the comb plates loosen and gradually protrude upward. These bolts can then break under the constant impact and shear forces of traffic and wind, reducing the plates' holding power. Unbroken protruding bolts can also damage moving vehicles. Removing broken or protruding bolts requires chiseling away the entire poured concrete and re-embedding the bolts, requiring significant time, labor, and material resources for traffic containment, control, and repairs.

[0004] For example, the public document with application number 202022941957.X discloses an S-shaped multi-directional displacement vibration isolation and noise reduction expansion joint device. Due to the arrangement of the first embedded sleeve and the second embedded sleeve, the utility model makes it possible for if the bolts fixed on the first S-shaped plate or the second S-shaped plate are broken under the action of impact force and shear force during use of the expansion joint, it is only necessary to spirally unscrew the broken bolts from the first embedded sleeve or the second embedded sleeve, replace them with new bolts and then spiral them in during maintenance; since the first S-shaped plate is used to be fixed on the bridge and the second S-shaped plate is used to be fixed on the building, the S-shaped expansion joint is located between the bridge and the building, so it can achieve the side protection effect of the bridge to ensure the smoothness of the bridge side and protect the structure; the alternating arrangement of the rubber layer and the steel plate layer can make the multi-directional displacement vibration isolation and noise reduction box both rigid and flexible. The flexibility makes the first embedded sleeve wrapped in the multi-directional displacement vibration-isolating and noise-reducing box have the following functions: multi-directional displacement and resetting, vibration reduction and isolation, energy absorption and buffering, and noise reduction; the rigidity makes the multi-directional displacement vibration-isolating and noise-reducing box have a certain supporting force, but the expansion joint device has a scattered structure when in use, and the independent support plates on the top are meshed with each other on the left and right. Although they can limit each other at the S-bend position to avoid excessive displacement, a certain gap will still be left in the middle, and when the multi-directional displacement is connected, it is necessary to assemble the horizontal and vertical sides and assemble two sets of devices, which increases the cost. In addition, the metal plates paved on the road will also cause the noise of passing vehicles to be loud, the vibration frequency generated will be high, and the wear will be more serious.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an S-shaped multi-directional displacement vibration isolation and noise reduction expansion joint device is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide an S-shaped multi-directional displacement vibration-isolating and noise-reducing expansion joint device to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an S-shaped multi-directional displacement vibration isolation and noise reduction expansion joint device, comprising a rubber sealing plate, assembly grooves are evenly distributed on the left and right sides of the upper surface of the rubber sealing plate, and embedded parts are provided on the left and right sides of the lower side of the rubber sealing plate, a buffer rubber block is fixedly installed on the inner surface of the embedded part, a blocking plate is fixedly installed in the middle of the inner surface of the buffer rubber block, and two threaded cylinders are symmetrically fixedly installed on the inner surface of the buffer rubber block along the blocking plate.

[0008] Preferably, the embedded part is fixed in the building by pouring concrete, and the threaded barrel corresponds to the threaded through-hole inside the assembly groove.

[0009] Preferably, elastic substrates are fixedly provided on both left and right sides below the surface of the rubber sealing plate, and through holes of the same shape are also provided at positions corresponding to the assembly grooves on the elastic substrates.

[0010] Preferably, a same connecting plate is fixedly mounted on the opposite end of the elastic base plate. The connecting plate is an elastic soft colloid and is arc-shaped and protrudes downwards and is sunken into the building joint.

[0011] Preferably, a support frame is fixedly installed on one side above the surface of the elastic substrate close to the middle portion, and an upper end of the support frame is at a certain distance from the lower middle portion of the rubber sealing plate.

[0012] Preferably, an S-shaped groove is provided in the middle of the upper surface of the rubber sealing plate, and grooves are provided on the left and right sides of the S-shaped groove above the surface of the rubber sealing plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with an assembly groove, an embedded part, a buffer rubber block, a barrier plate and a threaded barrel. The locking bolt is fixed by the assembly groove and the threaded barrel inside the embedded part, so that the elastic base plate and the rubber sealing plate can be fixedly installed on the left and right sides of the building gap. When a vehicle passes by, the vibration force generated can be transmitted to the buffer rubber block inside the embedded part through the building. The buffer rubber block can buffer the vibration and prevent the locking bolt from loosening due to vibration, thereby improving the installation and fixation stability of the entire device. The barrier plate can support the entire embedded part to prevent the embedded part from deforming itself and squeezing the threaded barrel. At the same time, the assembly groove allows the locking bolt to sink, preventing the vehicle from touching the locking bolt and causing the locking bolt to be damaged, bent or warped, making the joint bridge deck smoother and more beautiful. When maintaining the entire device, only the locking bolt needs to be disassembled and replaced, which improves maintenance convenience.

[0015] 2. The utility model arranges connecting plates, support frames, S-shaped grooves and recesses. The S-shaped grooves enable the wheel tire to contact the expansion joint in an asymptotic manner when passing through the seam. There is always a support point between the tire and the road surface, and the transition is smooth, which increases the force-bearing area, reduces the impact force, and reduces the noise. Moreover, when the bridge body joints are deformed by thermal expansion and contraction, the recesses and S-shaped grooves can make the rubber sealing plate well matched to stretching or opposite extrusion and contraction, and the S-shaped grooves can also make the rubber sealing plate achieve longitudinal displacement at the joint position. The connecting plate enables the position of the lower elastic substrate to effectively match the thermal expansion and contraction deformation at the bridge body joint, and perform multi-directional displacement in the horizontal and vertical directions together with the entire rubber sealing plate. The support frame supports the weak position in the middle of the rubber sealing plate to prevent the vehicle from sinking due to pressure and keep the bridge deck and the joint level. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the rubber sealing plate of the utility model;

[0018] Figure 3 This is a schematic diagram of the disassembled structure of the rubber sealing plate of the utility model;

[0019] Figure 4 This is a schematic diagram of the embedded part structure of the utility model.

[0020] In the figure: 1. Rubber sealing plate; 2. Assembly groove; 3. Embedded parts; 4. Buffer rubber block; 5. Blocking plate; 6. Threaded cylinder; 7. Elastic base plate; 8. Connecting plate; 9. Support frame; 10. S-shaped groove; 11. Groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1-4 As shown, an S-shaped multi-directional displacement vibration isolation and noise reduction expansion joint device includes a rubber sealing plate 1, assembly grooves 2 are evenly distributed on the left and right sides above the surface of the rubber sealing plate 1, embedded parts 3 are provided on the left and right sides below the rubber sealing plate 1, a buffer rubber block 4 is fixedly installed on the inner surface of the embedded part 3, a blocking plate 5 is fixedly installed in the middle of the inner surface of the buffer rubber block 4, and two threaded cylinders 6 are symmetrically fixedly installed on the inner surface of the buffer rubber block 4 along the blocking plate 5.

[0023] By adopting the above technical solution, the rubber sealing plate 1 will smooth the bridge joints, and the locking bolts will be fixed by the assembly groove 2 and the threaded tube 6 inside the embedded part 3, so that the elastic base plate 7 and the rubber sealing plate 1 can be fixedly installed above the left and right sides of the building gap; when a vehicle passes by, the vibration force generated can be transmitted through the building to the buffer rubber block 4 inside the embedded part 3, and the buffer rubber block 4 can buffer the vibration to prevent the locking bolt from loosening due to vibration; the barrier plate 5 can support the entire embedded part 3 to prevent the embedded part 3 from deforming itself and squeezing the threaded tube 6; the assembly groove 2 causes the locking bolt to sink to prevent the vehicle from touching the locking bolt and causing the locking bolt to be damaged, bent, and warped.

[0024] Furthermore, the embedded part 3 is fixed in the building by pouring concrete, and the threaded barrel 6 corresponds to the threaded through-hole inside the assembly groove 2 .

[0025] By adopting the above technical solution, it is ensured that the locking bolt can pass through the assembly groove 2 and be connected to the threaded barrel 6.

[0026] Furthermore, elastic substrates 7 are fixedly provided on both left and right sides below the surface of the rubber sealing plate 1 , and holes of the same shape are also provided at positions corresponding to the assembly grooves 2 .

[0027] By adopting the above technical solution, the elastic substrate 7 provides a hard fulcrum for the connection between the entire rubber sealing plate 1 and the bridge deck, and can reinforce the shapes of both sides of the rubber sealing plate 1.

[0028] Furthermore, a connecting plate 8 is fixedly mounted on the opposite end of the elastic base plate 7. The connecting plate 8 is an elastic soft colloid and is arc-shaped and protrudes downwards and is sunken into the building joint.

[0029] By adopting the above technical solution, the connecting plate 8 enables the position of the lower elastic substrate 7 to effectively match the thermal expansion and contraction deformation of the bridge body joint, and to perform multi-directional horizontal and vertical displacement together with the entire rubber sealing plate 1.

[0030] Furthermore, a support frame 9 is fixedly installed on one side of the upper surface of the elastic substrate 7 near the middle, and the upper end of the support frame 9 is at a certain distance from the lower middle portion of the rubber sealing plate 1 .

[0031] By adopting the above technical solution, the support frame 9 supports the weak position in the middle of the rubber sealing plate 1, thereby preventing it from sinking due to pressure from passing vehicles and maintaining the levelness of the bridge deck and the joint.

[0032] Furthermore, an S-shaped groove 10 is formed in the middle of the upper surface of the rubber sealing plate 1 , and grooves 11 are formed on the upper surface of the rubber sealing plate 1 on both the left and right sides of the S-shaped groove 10 .

[0033] By adopting the above technical solution, the opening of the S-shaped groove 10 and the groove 11 makes the middle part of the rubber sealing plate 1 corresponding to the bridge body gap position relatively weak and soft. The groove 11 and the S-shaped groove 10 can make the rubber sealing plate 1 well matched to stretching or opposite extrusion and contraction, and the mutual interlocking form of the S-shaped groove 10 can also realize longitudinal displacement of the rubber sealing plate 1 at the joint position.

[0034] Working principle: When using the S-type multi-directional displacement vibration isolation and noise reduction expansion joint device, first, the embedded parts 3 are evenly distributed and fixed on both sides of the bridge body joint by pouring concrete. Then, the rubber sealing plate 1 is inserted through the perforation of the elastic base plate 7 and aligned with the embedded parts 3. The protruding position of the upper end of the embedded part 3 can just pass through the perforation and be flush with the elastic base plate 7. The locking bolt is fixed with the threaded tube 6 inside the embedded part 3 by the assembly groove 2, so that the elastic base plate 7 and the rubber sealing plate 1 can be fixedly installed above the left and right sides of the building gap. When a vehicle passes by, the vibration force generated can be transmitted through the building to the buffer rubber block 4 inside the embedded part 3. The buffer rubber block 4 can buffer the vibration, and the barrier plate 5 can support the entire embedded part 3 to prevent the embedded part 3 from deforming itself and squeezing the threaded tube 6. At the same time, the assembly groove 2 causes the locking bolt to sink to prevent the vehicle from touching the locking bolt, causing the locking bolt to be damaged, bent, and warped, so that the bridge deck at the joint It is smoother and more beautiful, and is connected by bolts. During maintenance, only the bolts need to be replaced. The S-shaped groove 10 allows the wheel tire to contact the expansion joint in an asymptotic manner when passing through the seam. There is always a support point between the tire and the road surface, and the transition is smooth, which increases the force-bearing area, reduces the impact force, and reduces noise. Moreover, when the bridge body joint is deformed by thermal expansion and contraction, the groove 11 and the S-shaped groove 10 can make the rubber sealing plate 1 well match the stretching or opposite extrusion contraction, and the S-shaped groove 10 can also make the rubber sealing plate 1 realize longitudinal displacement at the joint position, and the connecting plate 8 enables the position of the lower elastic substrate 7 to effectively match the thermal expansion and contraction deformation of the bridge body joint, and perform multi-directional displacement in the horizontal and vertical directions together with the entire rubber sealing plate 1. The support frame 9 supports the weak position in the middle of the rubber sealing plate 1 to prevent the vehicle from sinking due to pressure and keep the bridge deck and the joint level. This is the working principle of the S-shaped multi-directional displacement vibration isolation and noise reduction expansion joint device.

Claims

1. An S-shaped multi-directional displacement isolation and noise reduction expansion joint device, comprising a rubber sealing plate (1), characterized in that: Assembly grooves (2) are evenly distributed on the left and right sides of the upper surface of the rubber sealing plate (1), and embedded parts (3) are arranged on the left and right sides of the lower surface of the rubber sealing plate (1). A buffer rubber block (4) is fixedly installed on the inner surface of the embedded part (3), and a blocking plate (5) is fixedly installed in the middle of the inner surface of the buffer rubber block (4). Two threaded cylinders (6) are symmetrically fixedly installed on the inner surface of the buffer rubber block (4) along the blocking plate (5).

2. The S-shaped multi-directional displacement isolation and noise reduction expansion joint device according to claim 1 is characterized in that: The embedded part (3) is fixed in the building by pouring concrete, and the threaded barrel (6) corresponds to the threaded through hole inside the assembly groove (2).

3. The S-shaped multi-directional displacement isolation and noise reduction expansion joint device according to claim 1 is characterized in that: Elastic substrates (7) are fixedly arranged on both left and right sides below the surface of the rubber sealing plate (1), and through holes of the same shape are also provided at positions corresponding to the assembly grooves (2) on the elastic substrate (7).

4. The S-shaped multi-directional displacement isolation and noise reduction expansion joint device according to claim 3 is characterized in that: The same connecting plate (8) is fixedly mounted on the opposite end of the elastic base plate (7); the connecting plate (8) is an elastic soft colloid and is arc-shaped and protrudes downwards and sinks into the interior of the building joint.

5. The S-shaped multi-directional displacement isolation and noise reduction expansion joint device according to claim 3 is characterized in that: A support frame (9) is fixedly mounted on one side above the surface of the elastic base plate (7) near the middle, and the upper end of the support frame (9) is at a certain distance from the lower middle of the rubber sealing plate (1).

6. The S-shaped multi-directional displacement, seismic isolation and noise reduction expansion joint device according to claim 1 is characterized in that: An S-shaped groove (10) is provided in the middle of the upper surface of the rubber sealing plate (1), and grooves (11) are provided on the upper surface of the rubber sealing plate (1) on both the left and right sides of the S-shaped groove (10).

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