CN212870961U

CN212870961U - Noise reduction device for tunnel blasting construction

Info

Publication number: CN212870961U
Application number: CN202021313291.7U
Authority: CN
Inventors: 王锦声
Original assignee: Fujian Rong'an Blasting Engineering Co ltd
Current assignee: Fujian Rong'an Blasting Engineering Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-04-02
Anticipated expiration: 2030-07-07

Abstract

The utility model discloses a tunnel blasting construction noise reduction device belongs to blasting noise reduction device technical field, including base and the arch portal of setting at the base top, first recess has been seted up at the top of base, and one side of first recess is equipped with the second recess, and the arch recess has been seted up to the bottom of arch portal, installs central baffle between first recess and the sliding block, and the both sides of central baffle all are equipped with a plurality of side position baffles, and two limiting plates are installed at the top of second recess. The utility model discloses a fix base and arch portal in tunnel door opening department, install a plurality of side position baffles and center baffle on first recess in proper order to install the limiting plate and carry on spacingly to a plurality of side position baffles and center baffle on the second recess, the baffle shell is aluminum alloy material, and internally mounted has foamed aluminum, butyl rubber board and steel sheet, through inhaling the sound sponge filling gap between arch recess and the baffle, the separation noise spreads the tunnel, reduces the influence to masses on every side.

Description

Noise reduction device for tunnel blasting construction

Technical Field

The utility model relates to a blasting noise reduction device especially relates to tunnel blasting construction noise reduction device, belongs to blasting noise reduction device technical field.

Background

In recent years, urban tunnels are increasing day by day, and the influence to people's life around needs be considered in the construction of blasting in urban tunnels, especially noise influence, and proruption explosion sound easily forms explosive deafness, and under proruption explosion or extremely strong sound stimulation, powerful air shock wave and noise sound pressure wave arouse each tissue damage of well ear and inner ear, cause the influence to people's health and daily life around, the utility model discloses new solution has been proposed to above problem.

How to research out a noise reduction device for tunnel blasting construction is a problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main objective is in order to solve prior art not enough, and provides tunnel blasting construction noise reduction device.

The purpose of the utility model can be achieved by adopting the following technical scheme:

tunnel blasting construction noise reduction device, be in including base and setting the arch portal at base top, first recess has been seted up at the top of base, one side of first recess is equipped with the second recess, the arch recess has been seted up to the bottom of arch portal, first recess with install central baffle between the sliding block, the both sides of central baffle all are equipped with a plurality of side position baffles, two limiting plates are installed at the top of second recess, two it is articulated through the hinge between the limiting plate, side position baffle with central baffle all includes the shell, the inside of shell is equipped with foamed aluminum, butyl rubber board and steel sheet, foamed aluminum with the butyl rubber board is located respectively the both sides of steel sheet.

Preferably, the arched groove is paved with sound-absorbing sponge, and the sound-absorbing sponge is positioned at the tops of the side position baffles and the central baffle.

Preferably, the top of arch portal is equipped with the sliding block, the top of sliding block is equipped with the pull ring.

Preferably, the arched door frame and the sliding block are in sliding connection.

Preferably, the pull ring is connected with a rope, and the arched door frame is provided with a fixed rod.

Preferably, one side of the base is provided with a fixed pulley, the fixed pulley is provided with a handle, and the rope penetrates through a hole in the fixed rod and is wound on the fixed pulley.

Preferably, the side baffles and the central baffle are both positioned at the top of the first groove.

Preferably, a plurality of side position baffles are all clamped through clamping strips, and the side position baffles and the central baffle are all clamped through the clamping strips.

Preferably, the limiting plate is located between the second groove and the arched groove.

Preferably, a plurality of the side baffles and the central baffle form an arch-shaped barrier frame.

The utility model has the advantages of: according to the utility model discloses a tunnel blasting construction noise reduction device, this tunnel blasting construction noise reduction device is through fixing base and arch portal in tunnel door opening department, it is high to drive the sliding block through fixed pulley pulling rope, install a plurality of side position baffles and central baffle on first recess in proper order, and install the limiting plate and carry on spacingly to a plurality of side position baffles and central baffle on the second recess, the baffle shell is aluminum alloy material, and internally mounted has foamed aluminum, butyl rubber board and steel sheet, fill the gap through inhaling the sound sponge between arch recess and the baffle, the separation noise spreads the tunnel, reduce the influence to crowd on every side.

Drawings

Fig. 1 is a front view of the overall structure of a preferred embodiment of a noise reduction device for tunnel blasting construction according to the present invention;

FIG. 2 is a front view of the side baffles and the central baffle structure of a preferred embodiment of the noise reduction device for tunnel blasting construction according to the present invention;

FIG. 3 is a bottom view of the side and center baffles of the preferred embodiment of the noise reduction apparatus for tunnel blasting construction according to the present invention;

FIG. 4 is a schematic structural view of a base and an arched gantry of a preferred embodiment of the noise reduction device for tunnel blasting construction according to the present invention;

fig. 5 is a schematic cross-sectional view of a side baffle and a center baffle of a preferred embodiment of the noise reduction device for tunnel blasting construction according to the present invention;

fig. 6 is a front view of a limiting plate structure of a preferred embodiment of the noise reduction device for tunnel blasting construction according to the present invention.

In the figure: 1-base, 2-arched door frame, 3-sliding block, 4-pull ring, 5-arched groove, 6-first groove, 7-second groove, 8-fixed rod, 9-rope, 10-fixed pulley, 11-handle, 12-limiting plate, 13-hinge, 14-side baffle, 15-sound-absorbing sponge, 16-center baffle, 17-clamping strip, 18-shell, 19-foamed aluminum, 20-butyl rubber plate and 21-steel plate.

Detailed Description

In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1-6, the tunnel blasting construction noise reduction device that this embodiment provided, including base 1 and its arch portal 2 of setting at base 1 top, first recess 6 has been seted up at base 1's top, one side of first recess 6 is equipped with second recess 7, arch recess 5 has been seted up to arch portal 2's bottom, install central baffle 16 between first recess 6 and the sliding block 3, central baffle 16's both sides all are equipped with a plurality of side position baffles 14, two limiting plates 12 are installed at second recess 7's top, it is articulated through hinge 13 between two limiting plates 12, side position baffle 14 and central baffle 16 all include shell 18, the inside of shell 18 is equipped with foamed aluminum 19, butyl rubber board 20 and steel sheet 21, foamed aluminum 19 and butyl rubber board 20 are located the both sides of steel sheet 21 respectively. The noise reduction device for tunnel blasting construction is characterized in that a base 1 and an arched door frame 2 are fixed at a tunnel door opening, a rope 9 is pulled through a fixed pulley 10 to drive a sliding block 3 to ascend, a plurality of side baffles 14 and a central baffle 16 are sequentially arranged on a first groove 6, a limiting plate 12 is arranged on a second groove 7 to limit the plurality of side baffles 14 and the central baffle 16, a baffle shell 18 is made of aluminum alloy material, foamed aluminum 19, a butyl rubber plate 20 and a steel plate 21 are arranged inside the baffle shell, gaps are filled between the arched grooves 5 and the baffles through sound-absorbing sponge 15, the steel plate 21 is heavy in weight, high in density, stable in structure, good in sound-insulating effect, good in vibration-absorbing effect of the butyl rubber plate 20, green, long in service life, the foamed aluminum 19 has the characteristics of low density, high rigidity, good in sound-insulating property, good in heat-insulating property and the like, and can effectively block, reducing the impact on surrounding masses.

In this embodiment, as shown in fig. 1 and 4, a sound-absorbing sponge 15 is laid on the arched groove 5, and the sound-absorbing sponge 15 is located on the top of the side baffles 14 and the central baffle 16. The sound-absorbing sponge 15 fills gaps between the baffle plates 14 and the arched grooves 5, is formed by processing melamine foam, has the properties of sound absorption, heat insulation, flame retardance, high temperature resistance, water absorption, light weight and the like, and can effectively insulate sound.

In this embodiment, as shown in fig. 1 and 4, the top of the arched portal 2 is provided with a sliding block 3, the top of the sliding block 3 is provided with a pull ring 4, the arched portal 2 and the sliding block 3 are connected in a sliding manner, the pull ring 4 is connected with a rope 9, the arched portal 2 is provided with a fixing rod 8, one side of the base 1 is provided with a fixed pulley 10, the fixed pulley 10 is provided with a handle 11, and the rope 9 passes through a hole in the fixing rod 8 and is wound on the fixed pulley 10. Rotate fixed pulley 10 through handle 11 and tighten up rope 9, and then drive sliding block 3 rise height, be convenient for place side position baffle 14 and center baffle 16 on first recess 6, rotate fixed pulley 10 release rope 9, sliding block 3 resets under the effect of dead weight, fixed center baffle 16.

In this embodiment, as shown in fig. 2, 3 and 4, the side position baffles 14 and the central baffle 16 are located at the top of the first groove 6, the side position baffles 14 are connected with each other through the clamping strips 17, the side position baffles 14 and the central baffle 16 form an arch-shaped stop door frame, and the limiting plate 12 is located between the second groove 7 and the arch-shaped groove 5. A plurality of side position baffles 14 and central baffle 16 are through the 17 joints of card strip, avoid exposing the gap and influence the effect that gives sound insulation, and a plurality of side position baffles 14 and central baffle 16 are fixed to limiting plate 12 on the second recess 7, prevent that the blasting shock wave from causing the baffle to shift.

In this embodiment, as shown in fig. 1 to 6, the working process of the noise reduction device for tunnel blasting construction provided in this embodiment is as follows:

step 1: the base 1 and the arched portal 2 are fixed at a tunnel entrance through bolts, the handle 11 is rotated to further drive the fixed pulley 10 to pull the rope 9, the rope 9 drives the sliding block 3 to ascend, the side baffles 14 and the central baffle 16 are sequentially installed on the first groove 6, the fixed pulley 10 is rotated to release the rope 9, the sliding block 3 resets under the action of self weight, and the limiting plate 12 is installed on the second groove 7 to limit the side baffles 14 and the central baffle 16;

step 2: detonate the explosive in the tunnel, side position baffle 14, central baffle 16 and inhale the effective separation noise of sound sponge 15 and spread the tunnel, reduce the influence to masses on every side, the twist grip 11 drives sliding block 3 rise height after the blasting, takes out side position baffle 14 and central baffle 16 to dismantle base 1 and arch portal 2.

In conclusion, according to the noise reduction device for tunnel blasting construction of the present embodiment, the noise reduction device for tunnel blasting construction effectively insulates sound by filling the gap between the baffle 14 and the arched groove 5 with the sound-absorbing sponge 15. Rotate fixed pulley 10 through handle 11 and tighten up rope 9, and then drive sliding block 3 rise height, be convenient for place side position baffle 14 and center baffle 16 on first recess 6, rotate fixed pulley 10 release rope 9, sliding block 3 resets under the effect of dead weight, fixed center baffle 16. A plurality of side position baffles 14 and central baffle 16 avoid exposing the gap through the 17 joints of card strip, and a plurality of side position baffles 14 and central baffle 16 are fixed to limiting plate 12 on the second recess 7, prevent that the blast shock wave from causing the baffle to shift.

The above description is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the scope of the present invention.

Claims

1. The noise reduction device for tunnel blasting construction is characterized by comprising a base (1) and an arched portal (2) arranged at the top of the base (1), wherein a first groove (6) is formed in the top of the base (1), a second groove (7) is formed in one side of the first groove (6), an arched groove (5) is formed in the bottom of the arched portal (2), a sliding block (3) is arranged at the top of the arched portal (2), a central baffle (16) is arranged between the first groove (6) and the sliding block (3), a plurality of side baffles (14) are arranged on two sides of the central baffle (16), two limiting plates (12) are arranged at the top of the second groove (7), the two limiting plates (12) are hinged through hinges (13), and the side baffles (14) and the central baffle (16) both comprise a shell (18), the novel steel plate is characterized in that foamed aluminum (19), a butyl rubber plate (20) and a steel plate (21) are arranged inside the shell (18), and the foamed aluminum (19) and the butyl rubber plate (20) are respectively located on two sides of the steel plate (21).

2. A tunnel blasting construction noise reduction device according to claim 1, wherein a sound absorption sponge (15) is laid on the arch-shaped groove (5), and the sound absorption sponge (15) is positioned on the tops of the side baffles (14) and the central baffle (16).

3. A tunnel blasting construction noise reduction device according to claim 1, wherein the top of the sliding block (3) is provided with a pull ring (4).

4. A tunnel blasting construction noise reduction device according to claim 1, wherein the arched gantry (2) and the sliding block (3) are in sliding connection.

5. A noise-reducing device for tunnel blasting construction according to claim 3, wherein the pull ring (4) is connected with a rope (9), and the arch-shaped gantry (2) is provided with a fixing rod (8).

6. A noise reduction device for tunnel blasting construction according to claim 5, wherein a fixed pulley (10) is arranged on one side of the base (1), a handle (11) is arranged on the fixed pulley (10), and the rope (9) passes through a hole on the fixed rod (8) and is wound on the fixed pulley (10).

7. A tunnel blasting construction noise reduction device according to claim 1, wherein the side baffles (14) and the central baffle (16) are located at the top of the first groove (6).

8. The noise reduction device for tunnel blasting construction according to claim 1, wherein a plurality of the side baffles (14) are clamped by clamping strips (17), and the side baffles (14) and the central baffle (16) are clamped by clamping strips (17).

9. A tunnel blasting construction noise reduction device according to claim 1, wherein the restriction plate (12) is located between the second groove (7) and the arch-shaped groove (5).

10. A tunnel blasting construction noise reduction device according to claim 1, wherein a plurality of said side dams (14) and said center dam (16) form an arcuate fence.