Assembly type shock absorption and noise reduction bridge expansion device

Abstract

The utility model discloses an assembly type shock absorption and noise reduction bridge expansion device which comprises an anchor ring and a fixing assembly, an anchor plate is fixedly installed in the right end of the anchor ring, a left baffle is arranged on the top of the anchor plate, and the fixing assembly used for rapidly assembling and disassembling the left baffle is installed on the left baffle. The fixing assembly comprises a rivet, a pressing rod, an inner hexagonal groove, clamping plates, movable grooves, limiting plates and reset springs, the inner wall of the rivet is rotationally connected with the pressing rod, the inner hexagonal groove is formed in the top of the pressing rod, the clamping plates are vertically arranged on the two sides of the bottom of the rivet, the movable grooves are formed in the clamping plates, and the limiting plates are slidably arranged in the movable grooves. The tail end of the limiting plate is fixed to a pressing rod, and a reset spring is fixedly installed at the tail end of the pressing rod. According to the assembly type shock absorption and noise reduction bridge expansion device, the assembling and disassembling convenience can be improved, and meanwhile rivets can be prevented from being rusted and damaged by rainwater.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge expansion devices, and specifically relates to an assembled shock-absorbing and noise-reducing bridge expansion device. Background Technique

[0002] The shock-absorbing and noise-reducing bridge expansion device reduces the contact area between the vehicle tire and the surface of the expansion device, and reduces the noise generated when the load vehicle passes through the expansion joint. After on-site comparison and detection by the testing unit, the noise-reducing intelligent expansion device can effectively reduce noise by about 7-8 decibels compared with the conventional expansion device, about 8-10 decibels compared with the steel section expansion device, and about 2-3 decibels compared with the comb tooth plate expansion device. The NS type noise-reducing intelligent expansion device has good noise reduction effect. Structurally, the anchor plate is welded to the anchor ring, and the anchor ring is fixedly connected to the embedded steel bars in the bridge. The shock-absorbing and noise-reducing bridge expansion device is a device set between the bridge girders or between the girder and the abutment to enable the vehicle to pass smoothly through the bridge deck and meet the deformation needs of the upper structure of the bridge.

[0003] The traditional shock-absorbing and noise-reducing bridge expansion device cannot be quickly disassembled and loaded, which leads to a reduction in the installation speed, affects the construction efficiency, and the installation operation is cumbersome, increasing the on-site construction time.

[0004] Therefore, in view of this, in view of the existing structural deficiencies, research and improvement are carried out, and an assembled shock-absorbing and noise-reducing bridge expansion device is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide an assembled shock-absorbing and noise-reducing bridge expansion device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an assembled shock-absorbing and noise-reducing bridge expansion device, including an anchor ring and a fixing component. An anchor plate is fixedly installed inside the right end of the anchor ring, and a left baffle is provided on the top of the anchor plate. The fixing component for quickly loading and unloading the left baffle is installed on the left baffle. The fixing component includes a rivet, a pressing rod, an internal hexagonal groove, a clamping plate, a moving groove, a limiting plate and a return spring. The inner wall of the rivet is rotatably connected with the pressing rod, and an internal hexagonal groove is opened at the top of the pressing rod. The two sides of the bottom of the rivet are vertically provided with clamping plates, and a moving groove is opened inside the clamping plates. A limiting plate is slidably arranged inside the moving groove, and the end of the limiting plate is fixed to the pressing rod. A return spring is fixedly installed at the end of the pressing rod.

[0007] Preferably, a slot is opened at the position of the anchor plate corresponding to the rivet, and a clamping groove is opened on the outer wall of the bottom of the slot.

[0008] Preferably, the overall shape of the clamping groove is in an "L" shape, and the anchor plate is fixedly connected with the left baffle through the rivet.

[0009] Preferably, a protection groove is longitudinally formed at the top of the left baffle, and supporting blocks are fixedly installed on both sides of the inner wall of the protection groove.

[0010] Preferably, a cover plate is arranged on the top of the supporting block, and the outer diameter of the cover plate is smaller than the inner diameter of the protection groove.

[0011] Preferably, a fixing block is fixedly installed at the bottom right of the anchor plate, and a waterproof rubber strip is fixedly installed inside the fixing block.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: the assembled shock-absorbing and noise-reducing bridge expansion device can not only improve the convenience of loading and unloading, but also prevent the rivets from being corroded and damaged by rainwater.

[0013] 1. Through the setting of the fixing component of the present utility model, the rivet arranged at the bottom of the left baffle is inserted into the slot formed at the top of the anchor plate, and a special inner hexagon wrench is inserted into the inner hexagon groove formed at the top of the pressure rod, so that the inner hexagon wrench controls the inner hexagon groove to drive the whole rivet to rotate, and the clamping plate arranged at the bottom of the rivet slides into the clamping groove formed at the bottom of the slot. The return spring arranged at the bottom of the pressure rod pushes the pressure rod and the limiting plates fixed on both sides of its bottom to rise and snap into the corresponding grooves formed in the clamping groove, completing the fixation, enabling the quick docking of the left baffle and the anchor plate and improving the installation efficiency.

[0014] 2. Through the setting of the protection groove in cooperation with the cover plate of the present utility model, the cover plate is placed into the protection groove formed at the top of the left baffle and supported by the supporting blocks arranged on the inner wall of the protection groove, so that the cover plate stays at the entrance of the protection groove and seals and protects the elements such as rivets and pressure rods arranged inside the protection groove, preventing the rivets from being corroded and damaged by rainwater and improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 is a front view expanded structural diagram of the present utility model;

[0017] Figure 3 is a three-dimensional structural diagram of the fixing component of the present utility model;

[0018] Figure 4 is of the present utility model Figure 3 The enlarged structural diagram at position A in.

[0019] In the figure: 1, anchor ring; 2, anchor plate; 3, left baffle; 4, fixing component; 401, rivet; 402, pressure bar; 403, internal hexagonal groove; 404, clamping plate; 405, movable groove; 406, limiting plate; 407, return spring; 5, slot; 6, clamping groove; 7, protection groove; 8, supporting block; 9, cover plate; 10, fixing block; 11, waterproof rubber strip. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] As Figures 1-4 shown, an assembled shock-absorbing and noise-reducing bridge expansion device includes an anchor ring 1 and a fixing component 4. An anchor plate 2 is fixedly installed inside the right end of the anchor ring 1, and a left baffle 3 is provided on the top of the anchor plate 2. The fixing component 4 for quickly loading and unloading the left baffle 3 is installed on the left baffle 3. The fixing component 4 includes a rivet 401, a pressure bar 402, an internal hexagonal groove 403, a clamping plate 404, a movable groove 405, a limiting plate 406, and a return spring 407. The inner wall of the rivet 401 is rotatably connected to the pressure bar 402, and an internal hexagonal groove 403 is opened at the top of the pressure bar 402. Clamping plates 404 are vertically arranged on both sides of the bottom of the rivet 401, and a movable groove 405 is opened inside the clamping plates 404. A limiting plate 406 is slidably arranged inside the movable groove 405, and the end of the limiting plate 406 is fixed to the pressure bar 402. A return spring 407 is fixedly installed at the end of the pressure bar 402.

[0022] By adopting the above technical solution, the rivet 401 arranged at the bottom of the left baffle 3 is inserted into the slot 5 opened at the top of the anchor plate 2, and a special internal hexagonal wrench is inserted into the internal hexagonal groove 403 opened at the top of the pressure bar 402, so that the internal hexagonal wrench controls the internal hexagonal groove 403 to drive the whole rivet 401 to rotate, and the clamping plates 404 arranged at the bottom of the rivet 401 slide into the clamping groove 6 opened at the bottom of the slot 5. The return spring 407 arranged at the bottom of the pressure bar 402 pushes the pressure bar 402 and the limiting plate 406 fixed on both sides of its bottom to rise and snap into the corresponding grooves opened in the clamping groove 6 to complete the fixation, enabling the quick docking of the left baffle 3 and the anchor plate 2 and improving the installation efficiency.

[0023] As Figures 1-2 shown, slots 5 are opened at the positions corresponding to the rivets 401 on the top of the anchor plate 2, and clamping grooves 6 are opened on the outer wall of the bottom of the slots 5.

[0024] By adopting the above technical solution, the card slot 6 facilitates the insertion of the rivet 401 into the top limit of the anchor plate 2.

[0025] Furthermore, the overall shape of the card slot 6 is set in an "L" shape, and the anchor plate 2 is fixedly connected to the left baffle 3 through the rivet 401.

[0026] By adopting the above technical solution, the rivet 401 is used to fixedly dock the position of the left baffle 3.

[0027] Furthermore, a protection groove 7 is longitudinally opened at the top of the left baffle 3, and support blocks 8 are fixedly installed on both sides of the inner wall of the protection groove 7.

[0028] By adopting the above technical solution, the support block 8 is used to prevent the cover plate 9 from sinking into the protection groove 7 and losing its protection.

[0029] Furthermore, a cover plate 9 is arranged at the top of the support block 8, and the outer diameter of the cover plate 9 is smaller than the inner diameter of the protection groove 7.

[0030] By adopting the above technical solution, the cover plate 9 is used to block the protection groove 7 to prevent water from entering.

[0031] Furthermore, a fixing block 10 is fixedly installed at the right bottom of the anchor plate 2, and a waterproof rubber strip 11 is fixedly installed inside the fixing block 10.

[0032] Working principle: When using this assembled shock-absorbing and noise-reducing bridge expansion device, first insert the rivet 401 arranged at the bottom of the left baffle 3 into the slot 5 opened at the top of the anchor plate 2, and insert a special internal hexagonal wrench into the internal hexagonal groove 403 opened at the top of the pressure rod 402, so that the internal hexagonal wrench controls the internal hexagonal groove 403 to drive the whole rivet 401 to rotate, and make the clamping plate 404 arranged at the bottom of the rivet 401 slide into the card slot 6 opened at the bottom of the slot 5. The return spring 407 arranged at the bottom of the pressure rod 402 pushes the pressure rod 402 and the limiting plates 406 fixed on both sides of its bottom to rise, and snap into the corresponding grooves opened in the card slot 6 to complete the fixation, so that the left baffle 3 and the anchor plate 2 are quickly docked. After the installation is completed, then put the cover plate 9 into the protection groove 7 opened at the top of the left baffle 3, and support it through the support block 8 arranged on the inner wall of the protection groove 7, so that the cover plate 9 stays at the entrance of the protection groove 7 and blocks and protects the components such as the rivet 401 and the pressure rod 402 arranged inside the protection groove 7, preventing the rivet 401 from being corroded and damaged by rainwater and improving the service life. This is the working principle of this assembled shock-absorbing and noise-reducing bridge expansion device.

Claims

1. An assembled vibration-absorbing and noise-reducing bridge expansion device, comprising an anchor ring (1) and a fixing assembly (4), characterized in that: An anchor plate (2) is fixedly installed inside the right end of the anchor ring (1), and a left baffle (3) is provided on the top of the anchor plate (2). The fixing assembly (4) for quickly installing and removing the left baffle (3) is installed on the left baffle (3). The fixing assembly (4) includes a rivet (401), a pressure rod (402), an inner hexagonal groove (403), a clamping plate (404), a movable groove (405), a limiting plate (406) and a return spring (407). The inner wall of the rivet (401) is rotated A pressure rod (402) is connected, and a hexagonal groove (403) is provided on the top of the pressure rod (402), and clamping plates (404) are vertically arranged on both sides of the bottom of the rivet (401), and a movable groove (405) is provided inside the clamping plate (404), and a limiting plate (406) is slidably arranged inside the movable groove (405), and the end of the limiting plate (406) is fixed to the pressure rod (402), and a return spring (407) is fixedly installed at the end of the pressure rod (402).

2. The assembled vibration-absorbing and noise-reducing bridge expansion device according to claim 1 is characterized in that: A slot (5) is provided at the top of the anchor plate (2) at a position corresponding to the rivet (401), and a clamping slot (6) is provided on the bottom outer wall of the slot (5).

3. The assembled vibration-absorbing and noise-reducing bridge expansion device according to claim 2 is characterized in that: The clamping slot (6) is arranged in an overall "L"-shaped structure, and the anchor plate (2) is fixedly connected to the left baffle plate (3) via a rivet (401).

4. The assembled vibration-absorbing and noise-reducing bridge expansion device according to claim 1 is characterized in that: A protection groove (7) is longitudinally provided on the top of the left baffle (3), and support blocks (8) are fixedly mounted on both sides of the inner wall of the protection groove (7).

5. The assembled vibration-absorbing and noise-reducing bridge expansion device according to claim 4 is characterized in that: A cover plate (9) is provided on the top of the support block (8), and the outer diameter of the cover plate (9) is smaller than the inner diameter of the protection groove (7).

6. The assembled vibration-absorbing and noise-reducing bridge expansion device according to claim 1 is characterized in that: A fixing block (10) is fixedly installed at the right bottom of the anchor plate (2), and a waterproof rubber strip (11) is fixedly installed inside the fixing block (10).

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