CN213709248U

CN213709248U - Sound barrier

Info

Publication number: CN213709248U
Application number: CN202022309330.2U
Authority: CN
Inventors: 刘辉; 曹立凯; 刘月
Original assignee: Hebei Tiejiao Technology Co ltd
Current assignee: Hebei Tiejiao Technology Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-07-16
Anticipated expiration: 2030-10-16

Abstract

The utility model belongs to the technical field of the sound barrier, a sound barrier is disclosed. The main technical characteristics are as follows: the sound absorption structure comprises a rear panel, a front panel and a sound absorption cotton frame, wherein a sound absorption mechanism is arranged in the sound absorption cotton frame, the sound absorption mechanism comprises a sound absorption net piece, sound absorption cotton and a sound absorption adhesive sheet which are positioned in front, the sound absorption cotton frame comprises an upper frame, a lower frame and connecting keels arranged on the upper frame and the lower frame, and the connecting keels are connected with the lower frame and the upper frame through connecting pieces; the connecting piece comprises a connecting body and a U-shaped connecting piece, wherein the lower end of the connecting body is provided with a connecting pin, through holes are formed in the upper frame and the lower frame, clamping grooves are formed in two ends of the connecting keel, the connecting piece is inserted into the through holes, and the connecting pin is clamped in the clamping grooves. The lower frame, the upper frame and the connecting keel are anchored together, so that the connecting strength is high, the sound absorption effect is good, and the environment cannot be polluted in the production process.

Description

Sound barrier

Technical Field

The utility model belongs to the technical field of the sound barrier, especially, relate to a sound barrier.

Background

In order to reduce noise pollution, sound barriers are installed on both sides of a road or a railway. The existing sound barrier comprises a rear panel, a front panel with a sound absorption outer hole and a sound absorption cotton frame between the front panel and the rear panel, wherein a sound absorption mechanism is arranged in the sound absorption cotton frame, the sound absorption mechanism comprises a sound absorption net piece positioned in front, sound absorption cotton positioned at the middle part and a sound absorption adhesive sheet positioned at the rear part, the sound absorption cotton frame comprises an upper frame, a lower frame and a connecting keel of the upper frame and the lower frame, the connecting keel is connected with the lower frame and the upper frame through welding or connecting sheets fixed through self-tapping screws, and the sound barrier with the structure has the following defects:

firstly, when a vehicle passes by, the air flows to drive the sound barrier to rock, particularly for a train running at a high speed of more than 300 km/h, the wind speed is higher, when the sound barrier rocks, the frame and the connecting keel connected by the connecting mode of the connecting sheet is fixed by welding or tapping screws, the frame is easy to open and weld, the tapping screws fall off, the sound absorption cotton frame is damaged, the sound absorption cotton is separated from the frame, the damage to the vehicle and pedestrians is easy, and the sound absorption effect is also reduced; secondly, when welding, the high temperature during welding easily causes the damage to the section bar, reduces the joint strength of section bar, and the welding easily damages the anti-corrosion coating on the section bar surface, has reduced the anticorrosive effect of section bar, has shortened life, still can produce welding smog when welding moreover, causes environmental pollution.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a sound barrier that does not have pollution to the environment in sound absorption effect is good, joint strength is high, the use middle part is not hard up easily, long service life, anticorrosive effect are strong, the production process.

In order to solve the above problem, the utility model discloses technical scheme that the sound barrier adopted does: the sound absorption structure comprises a rear panel, a front panel with sound absorption outer holes and a sound absorption cotton frame positioned between the front panel and the rear panel, wherein a sound absorption mechanism is arranged in the sound absorption cotton frame, the sound absorption mechanism comprises a sound absorption net piece positioned in the front, sound absorption cotton positioned in the middle and a sound absorption adhesive piece positioned at the rear, the sound absorption cotton frame comprises an upper frame, a lower frame and connecting keels arranged on the upper frame and the lower frame, the connecting keels are connected with the lower frame and the upper frame through connecting pieces, and grooves are formed in the inner side surfaces of the connecting keels; the connecting piece includes that the lower extreme has connector and "U" style of calligraphy connection piece of connecting the foot go up and be provided with the perforation on frame and the lower frame connect the both ends of fossil fragments and be provided with the draw-in groove, the connection piece inserts in perforating, the connector card is gone into in the recess of the inboard of connecting fossil fragments, connect the foot card in the draw-in groove.

The additional technical characteristics are as follows:

and an elastic gasket is arranged on the connecting piece below the upper frame.

Compared with the prior art, the utility model provides a sound barrier has following advantage: the sound absorption structure comprises a rear panel, a front panel with sound absorption outer holes and a sound absorption cotton frame positioned between the front panel and the rear panel, wherein a sound absorption mechanism is arranged in the sound absorption cotton frame, the sound absorption mechanism comprises a sound absorption net piece positioned in the front, sound absorption cotton positioned in the middle and a sound absorption adhesive sheet positioned at the rear, the sound absorption cotton frame comprises an upper frame, a lower frame and connecting keels arranged on the upper frame and the lower frame, the connecting keels are connected with the lower frame and the upper frame through connecting pieces, and grooves are formed in the inner side surfaces of the connecting keels; the connecting piece comprises a connecting body with connecting feet at the lower end and a U-shaped connecting sheet, the upper frame and the lower frame are provided with through holes, the two ends of the connecting keel are provided with clamping grooves, the connecting sheet is inserted into the through holes, the connecting body is clamped into a groove at the inner side of the connecting keel, the connecting feet are clamped in the clamping grooves, during production, the connecting piece is firstly inserted into the clamping grooves of the connecting keel, the connecting keel is fixed through a fixing mechanism, the upper frame is pressed above the connecting keel, the connecting sheet of the connecting piece is inserted into the through holes of the upper frame, a pressure rod with a V-shaped pressure head on a top plate is arranged above the connecting sheet, the pressure rod is pressed downwards through an air cylinder, the center position of the pressure head is positioned at the center of the connecting sheet, the lower part of the upper frame is tightly attached to the connecting keel along with the pressing of the pressure rod, the, conversely, the lower frame and the connecting keel are anchored together, so that the connecting strength is high, the sound absorption effect is good, the corrosion-resistant layers of the connecting keel, the upper frame and the lower frame cannot be damaged, the service life is prolonged, and the environment cannot be polluted in the production process; and secondly, as the elastic gasket is arranged on the connecting piece below the upper frame, when wind power is increased, the elastic gasket positioned below the connecting piece plays a role in buffering, and the service life of the connecting piece is prolonged.

Drawings

Fig. 1 is a schematic structural view of the sound barrier of the present invention;

FIG. 2 is a top view of a sound barrier;

FIG. 3 is a cross-sectional view A-A of FIG. 1;

FIG. 4 is a cross-sectional view B-B of FIG. 1;

FIG. 5 is a schematic view of a sound barrier with an elastomeric gasket;

figure 6 is a side view of the connecting runner;

figure 7 is an end view of the connecting runner;

fig. 8 is a schematic structural view of the connector.

Detailed Description

The structure and the operation principle of the sound barrier of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, the structure of the sound barrier of the present invention is schematically illustrated, the sound barrier of the present invention includes a rear panel 1, a front panel 3 with a sound absorption outer hole 2 and a sound absorption cotton frame 4 located between the front panel 3 and the rear panel 1, a sound absorption mechanism 5 is provided in the sound absorption cotton frame 4, the sound absorption mechanism 5 includes a sound absorption mesh 51 located in front, a sound absorption cotton 52 located in the middle and a sound absorption adhesive sheet 53 located behind, the sound absorption cotton frame 4 includes an upper frame 41, a lower frame 42 and a connection keel 6 between the upper frame 41 and the lower frame 42, the connection keel 6 is connected with the lower frame 42 and the upper frame 41 through a connection member 7, and a groove 62 is provided on the inner side surface of; the connecting piece 7 comprises a connecting body 72 with a connecting foot 71 at the lower end and a U-shaped connecting sheet 73, wherein through holes 43 are arranged on the upper frame 41 and the lower frame 42, clamping grooves 61 are arranged at two ends of the connecting keel 6, the connecting body 72 is clamped into a groove 62 at the inner side of the connecting keel 6, the connecting sheet 73 is inserted into the through holes 43, and the connecting foot 71 is clamped in the clamping grooves 61.

During production, the connecting piece 72 is firstly inserted into the clamping groove 61 of the connecting keel 6, the connecting keel 6 is fixed through the fixing mechanism, the upper frame 41 is pressed above the connecting keel 6, the connecting piece 73 of the connecting piece 7 is inserted into the through hole 43 of the upper frame 41, a pressing rod with a V-shaped pressing head on the top plate is arranged above the connecting piece 73, the pressing rod is pressed downwards through an air cylinder, the center position of the pressing head is located at the center of the connecting piece 73, the lower part of the upper frame 41 is tightly attached to the connecting keel 6 along with the pressing of the pressing rod, the connecting piece 73 is bent towards two sides, and the upper frame 41 and the connecting keel 6 are anchored together. The upper border 41 with the connecting runner 6 is reversed and the lower border 42 is anchored with the connecting runner 6. The joint strength is high, and the sound absorption effect is good, and the corrosion-resistant layer of connecting fossil fragments 6 and upper frame 41 and lower frame 42 can not destroyed, and life increases, can not cause the pollution to the environment in the production process.

The connecting piece 73 below the upper frame 41 is provided with the elastic gasket 74, and when the wind power is increased, the elastic gasket 74 below the connecting piece 73 plays a role in buffering, so that the service life of the connecting piece 73 is prolonged.

The utility model discloses a protection scope not only limits in above-mentioned embodiment, as long as the structure with the utility model discloses sound barrier structure is the same or similar, just falls the utility model discloses the scope of protection.

Claims

1. The sound barrier, include the rear panel, have the front panel in the outer hole of sound absorption and be located cotton frame of sound absorption between front panel and the rear panel be provided with sound absorption mechanism in the cotton frame of sound absorption, sound absorption mechanism is including being located preceding sound absorption net piece, being located the sound absorption cotton at middle part and being located the sound absorption bonding pad at rear, its characterized in that: the sound absorption cotton frame comprises an upper frame, a lower frame and a connecting keel arranged between the upper frame and the lower frame, the connecting keel is connected with the lower frame and the upper frame through connecting pieces, and a groove is formed in the inner side surface of the connecting keel;

the connecting piece includes that the lower extreme has connector and "U" style of calligraphy connection piece of connecting the foot go up and be provided with the perforation on frame and the lower frame connect the both ends of fossil fragments and be provided with the draw-in groove, the connection piece inserts in perforating, the connector card is gone into in the recess of the inboard of connecting fossil fragments, connect the foot card in the draw-in groove.

2. The sound barrier of claim 1, wherein: and an elastic gasket is arranged on the connecting piece below the upper frame.