CN211872601U

CN211872601U - Sound absorption and noise reduction structure for bridge expansion joint device

Info

Publication number: CN211872601U
Application number: CN201820552662.3U
Authority: CN
Inventors: 史瑞
Original assignee: Chengdu Feihang Think Tank Technology Co ltd
Current assignee: Chengdu Feihang Think Tank Technology Co ltd
Priority date: 2018-04-18
Filing date: 2018-04-18
Publication date: 2020-11-06
Anticipated expiration: 2028-04-18

Abstract

The utility model belongs to the technical field of bridge expansion joint shock attenuation technique and specifically relates to a sound absorption noise reduction structure for bridge expansion joint device, including left branch fagging, and cup jointed on one of them threaded rod and revolved the piece, the rotation hole that runs through from top to bottom that corresponds with revolving the piece is seted up to the inner chamber bottom of guide cylinder. The broach injects the guide way, at this moment the left beam body and the right beam body are close to each other, the deflector will remove in the guide cylinder, at this moment, the spring will play buffering absorbing effect, thereby avoid the right-hand member of broach and the inner chamber right-hand member collision of guide way and noise production, fine protection the environment, the rotation revolves the piece, the threaded rod that corresponds rotates, synchronous pulley above so will drive another synchronous pulley through the hold-in range, thereby make two threaded rod synchronous rotations, position about will adjust the slider like this, thereby adjust spring's extrusion dynamics, adjust the buffering dynamics, the vehicle of being convenient for walks on it, it is more convenient in a flexible way to use.

Description

Sound absorption and noise reduction structure for bridge expansion joint device

Technical Field

The utility model relates to a bridge expansion joint shock attenuation technical field especially relates to a sound absorption noise reduction structure for bridge expansion joint device.

Background

In the existing bridge expansion joint device, the comb type expansion joint device adopting the matching of the fixed comb plate and the movable comb plate is a better device, particularly in the large-scale bridge expansion joint with the expansion amount of more than 160 mm, because the expansion motion of the expansion joint device is completed by the movable comb plate arranged above the bridge expansion joint, no longitudinal transition gap exists, and the expansion joint device is connected with a bridge floor and a road surface into a whole, the shock resistance is good, the vehicle runs stably and comfortably, the phenomenon of vehicle jumping is effectively avoided, and the vehicle runs smoothly and comfortably. In the practical application process, when a running vehicle is transited from one comb plate to another comb plate, the vehicle must pass through a plurality of comb teeth which are arranged in two comb plates in a crossed mode at intervals, and because a certain distance always exists between the tail end of each comb tooth and the root of the corresponding tooth socket, certain impact force can be generated when the wheel quickly presses the distance. Particularly, in a low-temperature state in winter, the tail end of each comb tooth is far away from the root of the corresponding tooth groove, and when the wheel is pressed quickly, large sound is generated and large vibration is brought. Two comb plates receive the impact and collide with the beam body tip, and the noise that produces from this also can pass around through the beam body fast, and the noise phenomenon is particularly serious, influences the environment of peripheral resident under the bridge, environmental protection inadequately. Also there is sound absorption noise reduction structure that is used for bridge expansion joint device in the market, for example bulletin number is CN201794021U the utility model relates to a sound absorption noise reduction structure for bridge expansion joint device, including setting up first comb plate (2) and second comb plate (3) on bridge expansion joint (11) both sides roof beam body (1) respectively, wherein, second comb plate (3) span on bridge expansion joint (11), under second comb plate (3), be provided with in bridge expansion joint (11) and inhale sound filler (4), the top of this sound filler (4) is pasted with the bottom of second comb plate (3), should inhale the both sides of sound filler (4) and bridge expansion joint (11) both sides roof beam body (1) direct or indirect contact respectively to this sound filler (4) of inhaling is fixed relative roof beam body (1). Compared with the prior art, the utility model discloses a sound absorption noise reduction structure, when comb plate and roof beam body tip collision and produce noise and vibration, should inhale the sound filler ability noise absorption to reduce the vibration, the diffusion of effective noise reduction ", however, what its vibration/noise reduction used is to inhale the sound filler, this thing is single entity, and he can not adjust the buffering shock attenuation dynamics as required, can not use in a flexible way, and is too hard, and the shock attenuation is not good, and is too soft, causes the collision of comb plate and roof beam body easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that the sound absorption noise reduction structure who is used for bridge expansion joint device in the market can not adjust the buffering dynamics as required among the prior art, and use inconveniently, and the sound absorption noise reduction structure who is used for bridge expansion joint device who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a sound absorption and noise reduction structure for a bridge expansion joint device is designed, and comprises a left support plate, wherein the left support plate is clamped on a left beam body on the lower side, the left support plate extends out of the left beam body rightwards, a right beam body is arranged on the right side of the left beam body, a buffer gap is reserved between the right beam body and the left beam body, a right support plate is clamped on the left side of the upper end of the right beam body, rightward comb teeth are arranged at the right end of the left support plate, guide grooves with openings at the upper end and the left end corresponding to the comb teeth are formed in the left side of the upper end of the right support plate, the comb teeth are inserted into the guide grooves, mounting plates are fixed at the opposite ends of the left beam body and the right beam body, the left mounting plates are hinged and connected with guide plates which are horizontally rightward, guide cylinders are sleeved at the right ends of the guide plates, the guide cylinders are hinged and connected with the mounting plates on the right sides, slide blocks are installed, the right-hand member of slider rotates and is connected with two threaded rods that turn right around, and the right-hand member of threaded rod has cup jointed a screw thread section of thick bamboo, fixed connection between the right-hand member of screw thread section of thick bamboo and the inner chamber right-hand member of guide cylinder, and install synchronous pulley on the threaded rod, connect through the hold-in range between two synchronous pulley, synchronous pulley is located the left side of screw thread section of thick bamboo, and has cup jointed on one of them threaded rod and has revolved the piece, the rotation hole that runs through from top to bottom that corresponds with revolving the piece is seted up.

Preferably, the lower end of the comb teeth is provided with a pulley, and the pulley abuts against the bottom end of the inner cavity of the guide groove.

Preferably, the lower ends of the left support plate and the right support plate are uniformly provided with downward fastening nails.

Preferably, the mounting plate is connected with the left beam body through an expansion nail.

Preferably, an integrally formed structure is arranged between the left support plate and the comb teeth.

The utility model provides a sound absorption noise reduction structure for bridge expansion joint device, beneficial effect lies in: when the vehicle passed through, can follow the left branch fagging, press from broach and right branch fagging, the broach injects the guide way, at this moment the left beam body and the right beam body are close to each other, the deflector will remove in the guide cylinder, at this moment, the spring will play buffering absorbing effect, thereby avoid the right-hand member of broach and the inner chamber right-hand member collision of guide way and noise production, fine protection the environment, the rotation is revolved the piece, the threaded rod that corresponds rotates, synchronous pulley above so will drive another synchronous pulley through the hold-in range, thereby make two threaded rod synchronous rotations, position about will adjusting block like this, thereby adjusting spring's extrusion force degree, adjust the buffering dynamics, be convenient for the vehicle to walk on it, it is more convenient to use.

Drawings

Fig. 1 is a schematic structural view of a sound absorption and noise reduction structure for a bridge expansion joint device according to the present invention;

fig. 2 is an enlarged view of the structure a of fig. 1.

In the figure: 1 left support plate, 2 left beam bodies, 3 right beam bodies, 4 right support plates, 5 comb teeth, 6 guide grooves, 7 mounting plates, 8 guide plates, 9 guide cylinders, 10 sliding blocks, 11 springs, 12 threaded rods, 13 threaded cylinders, 14 synchronous pulleys, 15 rotary blocks, 16 pulleys and 17 fastening nails.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a sound absorption and noise reduction structure for a bridge expansion joint device, comprising a left support plate 1, wherein the left support plate 1 is clamped on a left beam body 2 at the lower side, the left support plate 1 extends out of the left beam body 2 rightwards, a right beam body 3 is arranged at the right side of the left beam body 2, a buffer gap is left between the right beam body 3 and the left beam body 2, a right support plate 4 is clamped at the left side of the upper end of the right beam body 3, downward fastening nails 17 are uniformly arranged at the lower ends of the left support plate 1 and the right support plate 4, so that the fixed connection is convenient, right comb teeth 5 are arranged at the right end of the left support plate 1, an integrally formed structure is arranged between the left support plate 1 and the comb teeth 5, so that the structure is convenient to manufacture and is firmer, guide grooves 6 with openings at the upper end and the left end corresponding to the comb teeth 5 are arranged at the left side of the upper end of the right support plate 4, the comb teeth 5 are, the support is realized, and the friction is reduced.

The upper ends of the left supporting plate 1 and the right supporting plate 4 are in the same horizontal plane, the opposite ends of the left beam body 2 and the right beam body 3 are both fixed with a mounting plate 7, the mounting plate 7 is connected with the left beam body 2 through an expansion nail and is firmer, the mounting plate 7 on the left side is hinged with a guide plate 8 which is horizontally arranged right, the right end of the guide plate 8 is sleeved with a guide cylinder 9, the guide cylinder 9 is hinged with the mounting plate 7 on the right side, a slide block 10 is installed in the guide cylinder 9, the left end of the slide block 10 is connected with the guide plate 8 on the left side through a spring 11, the right end of the slide block 10 is rotatably connected with a front threaded rod 12 and a rear threaded rod 12 which are arranged right, the right end of the threaded rod 12 is sleeved with a threaded cylinder 13, the right end of the threaded cylinder 13 is fixedly connected with the right end of the inner, the synchronous belt wheel 14 is positioned on the left side of the threaded cylinder 13, a rotary block 15 is sleeved on one threaded rod 12, and a rotary hole which penetrates through the rotary block 15 up and down is formed in the bottom end of the inner cavity of the guide cylinder 9.

When the vehicle passes through, can follow left branch fagging 1, press from broach 5 and right branch fagging 4, broach 5 injects guide way 6, at this moment left side roof beam body 2 and right side roof beam body 3 are close to each other, deflector 8 will remove in guide cylinder 9, at this moment, spring 11 will play buffering absorbing effect, thereby avoid the right-hand member of broach 5 and the inner chamber right-hand member collision of guide way 6 and produce the noise, fine protection the environment, rotate spiral block 15, corresponding threaded rod 12 rotates, synchronous pulley 14 above so will drive another synchronous pulley 14 through the hold-in range, thereby make two threaded rod 12 synchronous rotations, will adjust slider 10's the left and right sides position like this, thereby adjusting spring 11's extrusion force degree, adjust the buffering dynamics, the vehicle of being convenient for walks on it, it is more nimble convenient to use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A sound absorption and noise reduction structure for a bridge expansion joint device comprises a left support plate (1) and is characterized in that the left support plate (1) is connected to a left beam body (2) on the lower side in a clamped mode, the left support plate (1) extends out of the left beam body (2) rightwards, a right beam body (3) is arranged on the right side of the left beam body (2), a buffer gap is reserved between the right beam body (3) and the left beam body (2), a right support plate (4) is connected to the left side of the upper end of the right beam body (3) in a clamped mode, right comb teeth (5) rightwards are arranged at the right end of the left support plate (1), guide grooves (6) which correspond to the comb teeth (5) and are open at the upper end and the left end are formed in a clamped mode, guide grooves (6) are formed in the left side of the upper end of the right support plate (4), a mounting plate (7) is fixed to one end, and the left mounting plate (7) is hinged to be connected with a guide plate (8) with, and the right end of the guide plate (8) is sleeved with a guide cylinder (9), the guide cylinder (9) is hinged with the mounting plate (7) at the right side, a slide block (10) is arranged in the guide cylinder (9), the left end of the slide block (10) is connected with the guide plate (8) on the left side through a spring (11), the right end of the slide block (10) is rotationally connected with a front threaded rod and a rear threaded rod (12) which are right, the right end of the threaded rod (12) is sleeved with a threaded cylinder (13), the right end of the threaded cylinder (13) is fixedly connected with the right end of the inner cavity of the guide cylinder (9), and the threaded rod (12) is provided with a synchronous pulley (14), the two synchronous pulleys (14) are connected by a synchronous belt, the synchronous pulley (14) is positioned at the left side of the threaded cylinder (13), and a rotating block (15) is sleeved on one threaded rod (12), and a rotating hole which penetrates through the bottom of the inner cavity of the guide cylinder (9) and corresponds to the rotating block (15) is formed in the bottom end of the inner cavity.

2. A sound-absorbing and noise-reducing structure for an expansion joint device of a bridge as claimed in claim 1, wherein the lower ends of the comb teeth (5) are provided with pulleys (16), and the pulleys (16) abut against the bottom ends of the inner cavities of the guide grooves (6).

3. A sound-absorbing and noise-reducing structure for an expansion joint device of a bridge as claimed in claim 1, wherein the lower ends of the left and right support plates (1, 4) are uniformly provided with downward fastening nails (17).

4. A sound-absorbing and noise-reducing structure for an expansion joint device of a bridge as claimed in claim 1, wherein the mounting plate (7) is connected to the left beam body (2) by means of expansion nails.

5. The sound absorption and noise reduction structure for an expansion joint device of a bridge as claimed in claim 1, wherein the left support plate (1) and the comb teeth (5) are integrally formed.