CN218842863U - Road and bridge noise reduction device for road and bridge engineering - Google Patents

Abstract

The utility model discloses a sound reduction device for road bridges in road and bridge engineering, which comprises a base, a fixing frame is fixedly installed on the upper end of the base, an empty slot is opened on the fixing bracket, and a fixing device is arranged in the empty slot. The fixing device includes a fixing rod, a telescopic spring, and a fixing ring. The fixing rod runs through the fixing frame and is slidably connected with the fixing frame. On the outer wall, the fixing ring is fixedly installed on the outer wall of the fixing rod. The road and bridge sound reduction device of this road and bridge project is provided with a fixing device to fix the sound insulation board inside the fixing frame to improve the stability of the installation of the sound insulation board. By setting a limit device on the fixing device, the limit card The ring is pressed downwards and engaged with the limiting groove on the fixing rod to fix and limit the fixing rod, so as to facilitate the disassembly of the sound insulation board inside the fixing frame, and the operation is simple and convenient.

Description

Road and bridge noise reduction device for road and bridge engineering

technical field

The utility model relates to the technical field of roads and bridges, in particular to a sound reduction device for roads and bridges in road and bridge engineering.

Background technique

With the continuous improvement of people's living standards, the number of cars owned by families is also increasing, resulting in a gradual increase in road traffic flow and a sharp increase in urban traffic noise, which has seriously interfered with people's daily life. Therefore, during the construction of roads and bridges, It is necessary to use road and bridge sound insulation panels to deal with the noise.

The current road and bridge sound reduction devices are installed at both ends of the road bridge. When the sound reduction device is used for a long time, it is often exposed to wind and sun, and after external impact, the sound insulation board is damaged, so that the sound insulation board cannot reach the use effect. Just need to replace the sound insulation board, because most of the sound reduction devices are fixed installations, it is not convenient to replace the sound insulation board, which reduces the sound insulation effect of the device.

Utility model content

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the utility model provides a road and bridge noise reduction device for road and bridge engineering, which solves the problem that most of the current sound insulation panels are fixed and inconvenient to replace.

(2) Technical solutions

In order to achieve the above purpose, the utility model is achieved through the following technical proposals: a road and bridge sound reduction device for road and bridge engineering, including a base, the upper end of the base is fixedly installed with a fixing frame, and the fixing frame is provided with two groups, two One end of the fixed frame close to the central axis of the base is provided with a placement slot, and a sound insulation board is inserted into the placement slot, and the sound insulation board is provided with two sets of fixing holes, and an empty slot is provided on the fixed frame. A fixing device is arranged in the empty slot, and the fixing device includes:

a fixing rod, the fixing rod runs through the fixing frame and is slidably connected with the fixing frame, and the fixing rod is inserted into the fixing hole;

A telescopic spring, the telescopic spring is sleeved on the outer wall of the fixed rod;

The fixed ring is fixedly installed on the outer wall of the fixed rod.

Preferably, a limiting slot is provided on the fixing rod.

Preferably, limiting devices are fixedly installed on the front and rear outer walls of the fixing frame.

Preferably, the limiting device includes a limiting plate, a limiting rod, a limiting spring and a limiting snap ring, the limiting plate is fixedly mounted on the outer wall of the fixing frame, and the limiting plate runs through the limiting rod And it is slidingly connected with the limit rod, the outer wall of the limit rod is sleeved with a limit spring, the lower end of the limit spring is fixedly connected with the limit plate, and the limit snap ring is fixedly installed at the lower end of the limit rod.

Preferably, the outer surface of the sound insulation board is sprayed with a fireproof paint layer.

Preferably, the sound insulation board is provided with layers of sound-absorbing wool, gypsum board and glass wool from the inside to the outside.

(3) Beneficial effects

The utility model provides a road and bridge noise reduction device for road and bridge engineering. Has the following beneficial effects:

(1) The road and bridge noise reduction device of this road and bridge project is equipped with a fixing device. When the sound insulation board is inserted in the placement groove of the fixing frame, the elastic contraction of the telescopic spring will pull the fixing rod and insert it in the sound insulation. In the fixing hole of the board, the sound insulation board inside the fixing frame is fixed to improve the stability of the installation of the sound insulation board.

(2), the road bridge noise reduction device of this road bridge project, by setting the limit device on the fixing device, when the sound insulation board inside the fixing frame needs to be disassembled and replaced, the fixing rod is pulled outward so that the fixing rod is not plugged in. In the fixing hole of the sound insulation board, at the same time, the elastic potential energy of the limit spring at the upper end drives the limit rod to slide downward, so that the limit snap ring is pressed down and engaged with the limit slot on the fixed rod, and the fixed rod is fixed. The fixed limit is convenient to disassemble the sound insulation board inside the fixed frame, and the operation is simple and convenient.

Description of drawings

Fig. 1 is the three-dimensional structural representation of the utility model;

Fig. 2 is the structural schematic diagram of front section of the utility model;

Fig. 3 is the structural schematic diagram of side section of the utility model;

Fig. 4 is the structural schematic diagram of the internal section of the sound insulation board of the present invention;

Fig. 5 is an enlarged structural schematic diagram of part A in Fig. 3 of the present utility model.

In the figure: 1, base; 2, fixed frame; 201, placement slot; 202, empty slot; 3, sound insulation board; 301, fixing hole; 4, fixing device; 401, fixing rod; 4011, limit slot; 402, Telescopic spring; 403, fixed ring; 5, limit device; 501, limit plate; 502, limit rod; 503, limit spring; 504, limit snap ring; 6, fireproof coating layer; 7, sound-absorbing cotton; 8. Gypsum board; 9. Glass wool layer.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-Fig. 5, the utility model provides a kind of technical scheme: a kind of road bridge noise reducing device of road bridge project, comprises base 1, and base 1 upper end is fixedly installed with fixing frame 2, and fixing frame 2 is provided with two groups One end of the two groups of fixing frames 2 close to the central axis of the base 1 is provided with a placement groove 201, and a sound insulation board 3 is inserted in the placement groove 201, and the sound insulation board 3 is provided with two sets of fixing holes 301, and the fixing frame 2 is provided with an empty slot 202, the empty slot 202 is provided with a fixing device 4, the fixing device 4 includes a fixing rod 401, the fixing rod 401 runs through the fixing frame 2 and is slidingly connected with the fixing frame 2, the fixing rod 401 is plugged into the fixing hole 301, and the fixing rod 401 A telescopic spring 402 is sleeved, and a fixing ring 403 is fixedly installed on the outer wall of the fixing rod 401 .

Specifically, the fixing device 4 of the technical solution of the present utility model includes a fixing rod 401, a telescopic spring 402, and a fixing ring 403. Limit the outward pulling distance of the fixing rod 401 to prevent the equipment from being damaged and unusable due to excessive outward pulling.

In one embodiment of the present utility model, fixing devices 4 are provided at the front and rear ends of the fixing frame 2 to improve the stability of the sound insulation board 3 plugged into the placement groove 201 .

Please continue to refer to Fig. 1-Fig. 5, a limit groove 4011 is provided on the fixed rod 401, and a limit device 5 is fixedly installed on the outer walls of the front and rear ends of the fixed frame 2, and the limit device 5 includes a limit plate 501 and a limit rod 502 , the limit spring 503 and the limit snap ring 504, the limit plate 501 is fixedly installed on the outer wall of the fixed frame 2, the limit plate 501 runs through the limit rod 502 and is slidably connected with the limit rod 502, the limit rod 502 The limit spring 503 is sleeved on the outer wall, the lower end of the limit spring 503 is fixedly connected with the limit plate 501, the limit snap ring 504 is fixedly installed at the lower end of the limit rod 502, and the outer surface of the sound insulation board 3 is sprayed with a fireproof coating layer 6, The sound insulation board 3 is provided with sound-absorbing cotton 7 , gypsum board 8 and glass wool layer 9 from inside to outside.

In order to prevent the vehicles on the road bridge from colliding with fire during driving, causing the sound insulation board 3 to burn, the outer wall of the sound insulation board 3 is sprayed with a fireproof coating layer 6, which can block the flame. In addition, the sound insulation board 3 is provided with The gypsum board 8 and the glass wool layer 9 enhance the effect of fire prevention, improve the sound absorption performance, and enhance the sound insulation effect.

In the embodiment of the present utility model, in order to facilitate the replacement of the sound insulation board 3, by setting the limit device 5 on the fixing device 4, when the damaged sound insulation board 3 needs to be replaced, the fixing rod 401 is pulled outward, and no longer It is plugged into the fixing hole 301 of the sound insulation board 3, and at the same time, the limit snap ring 504 and the fixing rod 401 are limited and fixed, so that the sound insulation board 3 inside the fixing frame 2 can be disassembled directly, and the operation is simple and convenient.

When working (or in use), when the sound insulation board 3 needs to be installed, the fixed rod 401 is pulled outward, and after the fixed rod 401 is pulled outward for a certain distance, the limit rod 502 at the upper end passes through the elasticity of the limit spring 503. Potential energy is pressed downwards, and the limit snap ring 504 is also pressed downwards, and simultaneously engages with the limit groove 4011 provided on the lower fixed rod 401, and the fixed rod 401 is fixed and limited. 201 inserts the sound insulation board 3, after the installation is completed, pull the limit rod 502 upwards, at this time the limit snap ring 504 slides upwards and releases the limit on the fixed rod 401, and is pulled and fixed by the elastic contraction of the telescopic spring 402 The rod 401 slides inward and is plugged into the fixing hole 301 of the sound insulation board 3 to improve the fixing effect on the sound insulation board 3 . The rod 401 is fixed and limited, and the sound insulation board 3 inside the placement groove 201 can be removed, and the operation is simple and convenient.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. a road and bridge noise reduction device for road and bridge engineering, comprising a base (1), characterized in that: the upper end of the base (1) is fixedly equipped with a mount (2), and the mount (2) is provided with two One set, two groups of said fixing brackets (2) are provided with placement grooves (201) at one end close to the central axis of the base (1), and a sound insulation board (3) is inserted in the placement groove (201), and the sound insulation board (3) Two sets of fixing holes (301) are provided, and an empty slot (202) is provided on the fixed frame (2), and a fixing device (4) is arranged in the empty slot (202), and the fixing device ( 4) including: A fixed rod (401), the fixed rod (401) runs through the fixed frame (2) and is slidingly connected with the fixed frame (2), and the fixed rod (401) is plugged into the fixed hole (301); A telescopic spring (402), the telescopic spring (402) is sleeved on the outer wall of the fixed rod (401); A fixed ring (403), the fixed ring (403) is fixedly installed on the outer wall of the fixed rod (401). 2. A road and bridge noise reduction device for road and bridge engineering according to claim 1, characterized in that: a limiting slot (4011) is provided on the fixing rod (401). 3. The road and bridge noise reduction device for road and bridge engineering as claimed in claim 1, characterized in that: the outer walls of the front and rear ends of the fixing frame (2) are all fixedly installed with limiting devices (5). 4. The sound reduction device for road bridges of a kind of road and bridge engineering as claimed in claim 3, characterized in that: said limiting device (5) comprises a limiting plate (501), a limiting rod (502), a limiting The spring (503) and the limit snap ring (504), the limit plate (501) is fixedly installed on the outer wall of the fixed frame (2), the limit plate (501) runs through the limit rod (502) and Slidingly connected with the limit rod (502), the limit spring (503) is sleeved on the outer wall of the limit rod (502), and the lower end of the limit spring (503) is fixedly connected with the limit plate (501), A limit snap ring (504) is fixedly installed on the lower end of the limit rod (502). 5. A road and bridge noise reduction device for road and bridge engineering according to claim 1, characterized in that: the outer surface of the sound insulation board (3) is sprayed with a fireproof paint layer (6). 6. The road and bridge noise reducing device of a kind of road and bridge engineering as claimed in claim 1, characterized in that: the sound insulation board (3) is provided with sound-absorbing cotton (7), gypsum board (8) and Glass wool layer (9).

Images