CN115655041A - An episodic noise reducer for tunnel blasting - Google Patents

Abstract

The invention provides a curtain-type noise reducer for tunnel blasting, which includes a fixed base. Bolts at the four corners of the lower part of the fixed base are fixed with bottom moving wheels. The upper part of the fixed base is provided with a T-shaped slot, and the T-shaped slot A T-shaped socket is plugged into the upper part of the inner side; the upper part of the T-shaped socket is welded with a metal frame, and the inner front end bolt of the metal frame is fixed with a metal boundary plate, and it is characterized in that the rear end of the metal boundary plate is fixed with a The arc-shaped sound-absorbing panel is provided with a plug-in monitor assembly on the inner side of the arc-shaped sound-absorbing panel; the inner rear end of the metal frame is fixed with a sound wave buffer assembly. The arrangement of the semicircular impact-resistant plate, the inner glass plate and the outer acrylic plate of the present invention is beneficial to the arc-shaped sound-insulating plate to block the sound waves, and the blocked sound waves will be reflected on the coming path , to interfere with the subsequent sound waves, thereby improving the noise reduction effect.

Description

An episodic noise reducer for tunnel blasting

technical field

The invention belongs to the technical field of tunnel blasting noise reduction, in particular to an episodic noise reducer for tunnel blasting.

Background technique

Explosives are used for blasting during the construction of tunnels. The noise generated by explosives blasting is large, which has a great impact on the surrounding environment. The existing patent application number is CN201721743056.1, which is an episodic drop-down method for tunnel blasting. The noise device includes a first protective curtain; a curtain-releasing mechanism, which includes a first rotating shaft and a casing; the first rotating shaft is wound around the first protective curtain; a supporting mechanism, and the supporting mechanism is arranged on the first rotating shaft. The side part of the protective curtain; the first connection mechanism, the first connection mechanism includes the head mounting code and the rolling shutter head; the pull ball, the pull ball is placed inside the rolling shutter head; the second rotating shaft, the The second rotating shaft is fixed on the side of the head installation yard. During the blasting process of the tunnel, the sound wave will be transmitted from the opening of the tunnel to the outside, and the instantaneous impact force caused by the sound wave will damage the sound insulation board. If the sound insulation board is broken, The debris will splash backwards with the airflow, affecting safety, and it is impossible to record the instantaneous blasting state of the blasting position.

Therefore, it is very necessary to invent a kind of episodic noise reducer for tunnel blasting.

Contents of the invention

In view of the above technical problems, the present invention provides a curtain-type noise reducer for tunnel blasting, which is provided with double-layered reverse arc-shaped plates, one layer is used to reflect sound waves, and the other layer is used to reinforce the sound insulation board, and cooperate with the sound wave buffer structure, It can greatly reduce the instantaneous impact force caused by sound waves, and a camera structure is installed in the interlayer, so that the state of the blasting position can be observed at any time.

Its technical solution is as follows: a curtain-type noise reducer for tunnel blasting, including a fixed base, the four corners of the lower part of the fixed base are bolted with bottom moving wheels, and the upper part of the fixed base is provided with a T-shaped slot, and The inner upper part of the T-shaped slot is plugged with a T-shaped socket; the upper part of the T-shaped socket is welded with a metal frame, and the inner front end bolt of the metal frame is fixed with a metal boundary plate, and it is characterized in that the metal boundary plate The rear end is fixed with an arc-shaped sound-absorbing panel, and the inner side of the arc-shaped sound-absorbing panel is provided with a plug-in monitor assembly; the inner rear end of the metal frame is fixed with a sound wave buffer assembly; the front end of the metal boundary plate is integrated There is a flat installation base, and the front end of the flat installation base is inlaid with a touch display screen.

Preferably, the rear end of the arc-shaped sound-absorbing panel is integrally provided with a semicircular impact-resistant plate, the rear end of the semi-circular impact-resistant plate is glued with an inner glass plate, and the rear end of the inner glass plate is glued With outer acrylic sheet.

Preferably, the metal frame is arranged on the upper part of the fixed base, and the metal boundary plate is arranged in an arc shape.

Preferably, the arc-shaped sound-absorbing board is glued to the rear end of the metal boundary board.

Compared with prior art, the beneficial effect of the present invention is:

1. In the present invention, the setting of the semicircular impact-resistant plate, the inner glass plate and the outer layer acrylic plate is beneficial to the arc-shaped sound-insulating plate, which blocks the sound waves, and the sound waves after blocking will always Reflecting the path of the sound wave and interfering with the subsequent sound waves, thereby improving the noise reduction effect.

2. In the present invention, the setting of described rectangular metal frame, explosion-proof glass plate, tension spring and highly elastic nylon net is conducive to buffering the impact force that produces in the sound wave transmission process, reduces the transfer speed of impact force, to The sound insulation board plays a certain protective effect.

3. In the present invention, the arrangement of the grooved plug-in box, LED spotlight, zoom camera and lifting handle is conducive to checking the blasting position, which is convenient for checking whether the preparations before blasting are in place, and reduces the number of workers entering the blasting. The risks of range checking.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Figure 2 is a top view of the present invention.

Fig. 3 is a structural schematic diagram of the acoustic wave buffer assembly of the present invention.

Fig. 4 is a schematic structural view of the pluggable monitor assembly of the present invention.

In the picture:

1. Fixed base; 2. Bottom moving wheel; 3. T-shaped slot; 4. T-shaped socket; 5. Metal frame; 6. Metal boundary plate; 7. Arc-shaped sound-absorbing board; ;72, inner glass plate; 73, outer acrylic plate; 8, plug-in monitor assembly; 81, groove plug-in box; 82, LED spotlight; 83, zoom camera; 84, pull handle; 9, 91. Rectangular metal frame; 92. Explosion-proof glass plate; 93. Tension spring; 94. High-elastic nylon net; 10. Flat mount; 11. Touch screen.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

Example:

As shown in accompanying drawing 1 and accompanying drawing 2, a kind of curtain type noise reducer of tunnel blasting, comprises fixed base 1, and the bottom four corner position bolts of described fixed base 1 are fixed with bottom moving wheel 2, and the upper part of fixed base 1 A T-shaped slot 3 is provided, and a T-shaped socket 4 is plugged into the inner upper part of the T-shaped slot 3; a metal frame 5 is welded on the upper part of the T-shaped socket 4, and the inner front end bolt of the metal frame 5 is fixed with a metal The boundary plate 6 is characterized in that the rear end of the metal boundary plate 6 is fixed with an arc-shaped sound-absorbing panel 7, and the inner side of the arc-shaped sound-absorbing panel 7 is provided with a plug-in monitor assembly 8; the metal frame 5 A sound wave buffer assembly 9 is fixed at the inner rear end of the inner side; the front end of the metal boundary plate 6 is integrally provided with a plane mount 10 , and the front end of the plane mount 10 is inlaid with a touch screen 11 .

As shown in accompanying drawing 3, in the above-mentioned embodiment, specifically, described sound wave damper assembly 9 comprises rectangular metal frame 91, and the inner side of described rectangular metal frame 91 is inlaid with explosion-proof glass plate 92, and the inner side of rectangular metal frame 91 Tension springs 93 are respectively bolted around the outside, and the front end of the rectangular metal frame 91 is provided with a highly elastic nylon mesh 94; The nets 94 cooperate with each other to buffer the impact force.

As shown in Figure 4, in the above embodiment, specifically, the plug-in monitor assembly 8 includes a recessed plug-in box 81, and the inner middle position of the grooved plug-in box 81 is screwed with an LED The spotlight 82, the upper and lower parts of the inner side of the groove plug-in box 81 are respectively screw-fixed with a zoom camera 83, and the upper part of the groove plug-in box 81 is integrally provided with a lifting handle 84; the groove plug-in box 81 is inserted into the semicircular The inner side of the anti-shock plate 71, and the LED spotlight 82 and the zoom camera 83 are connected with the touch display screen 11 by wires.

In the above embodiment, specifically, the semicircular impact-resistant plate 71, the inner glass plate 72 and the outer acrylic plate 73 are respectively arranged in an arc shape, which can reflect sound waves and improve the noise reduction when the device is in use. Effect.

In the above embodiment, specifically, the inner glass plate 72 and the outer acrylic plate 73 protrude forward, and the semicircular impact-resistant plate 71 protrudes backward to reinforce the connection.

In the above embodiment, specifically, the inner glass plate 72 and the outer acrylic plate 73 are respectively arranged on the inner side of the metal frame 5, and the surrounding positions are glued to the inner side of the metal frame 5, so as to facilitate the disassembly and replacement of the sound insulation structure .

In the above embodiment, specifically, the rectangular metal frame 91 is located at the inner rear end of the metal frame 5 .

In the above embodiment, specifically, the other end of the tension spring 93 is bolted to the inner side of the metal frame 5 to play a buffering role.

In the above embodiment, specifically, the four sides of the high elastic nylon mesh 94 are fixed on the inner side of the metal frame 5 by screws, so as to prevent the broken explosion-proof glass plate 92 from splashing.

In the above embodiment, specifically, the high elastic nylon mesh 94 is located at the rear end of the outer acrylic plate 73 to improve the cushioning effect.

In the above embodiment, specifically, the grooved plug-in box 81 is plugged into the inner side of the semicircular impact-resistant plate 71 , and the grooved plug-in box 81 is closely attached to the rear end of the arc-shaped sound-absorbing panel 7 .

In the above embodiment, specifically, the LED spotlight 82 and the zoom camera 83 are respectively arranged facing backward.

In the above embodiment, specifically, the LED spotlight 82 and the zoom camera 83 are respectively electrically connected to the touch screen 11 .

working principle

In the present invention, the device is moved to the entrance of the tunnel through the bottom moving wheel 2, and the staff inserts the recessed plug box 81 into the inner side of the semicircular impact plate 71, and the LED spotlight 82 and the zoom camera 83 are connected by wires and touch The display screen 11 is connected, the external power supply supplies power to it, and the LED spotlight 82 just carries out supplementary light to the blasting position. Observe, and then the staff fixes the fixed base 1 through a chain, and retreats to a safe position. The impact force generated during blasting impacts the rear end of the device. The rectangular metal frame 91 and the explosion-proof glass plate 92 are the first to bear the impact force. The setting of the extension spring 93 makes the rectangular metal frame 91 move backward, and the extension spring 93 cooperates with the highly elastic nylon net 94 to buffer the impact force. Due to the curved design, sound waves can be reflected, and the reflected sound waves can interfere with subsequent sound waves, improving the noise reduction effect of the device.

Utilize the technical solution described in the present invention, or those skilled in the art design a similar technical solution under the inspiration of the technical solution of the present invention, and achieve the above-mentioned technical effect, all fall into the protection scope of the present invention.

Claims (8)

1. A curtain noise reducer for tunnel blasting, characterized in that the curtain noise reducer for tunnel blasting comprises a fixed base (1), the bottom four corners of the fixed base (1) are fixed with bottom bolts The moving wheel (2), the upper part of the fixed base (1) is provided with a T-shaped slot (3), and the inner upper part of the T-shaped slot (3) is plugged with a T-shaped socket (4); the T-shaped socket The top of (4) is welded with metal frame (5), and the inner front end bolt of metal frame (5) is fixed with metal boundary plate (6), it is characterized in that, the rear end of described metal boundary plate (6) is fixed with arc Shaped sound-absorbing board (7), and the inner side of the arc-shaped sound-absorbing board (7) is provided with a plug-in monitor assembly (8); the inner rear end of the metal frame (5) is fixed with a sound wave buffer assembly (9) The front end of the metal boundary plate (6) is integrally provided with a plane mount (10), and the front end of the plane mount (10) is inlaid with a touch screen (11). 2. The curtain noise reducer for tunnel blasting according to claim 1, characterized in that, the rear end of the arc-shaped sound-absorbing panel (7) is integrally provided with a semi-circular impact-resistant plate (71), and the semi-circular impact-resistant plate (71) is integrated. The rear end of the circular impact plate (71) is glued with an inner layer glass plate (72), and the rear end of the inner layer glass plate (72) is glued with an outer layer acrylic plate (73). 3. The curtain noise reducer for tunnel blasting as claimed in claim 1, characterized in that, the sound wave buffer assembly (9) comprises a rectangular metal frame (91), and the rectangular metal frame (91) The inner side is inlaid with explosion-proof glass plate (92), and the outside of the rectangular metal frame (91) is bolted with tension springs (93) respectively, and the front end of the rectangular metal frame (91) is provided with high elastic nylon net (94). 4. The curtain noise reducer for tunnel blasting according to claim 1, characterized in that, the plug-in monitor assembly (8) includes a groove plug-in box (81), and the groove plug-in The inside middle position screw of pulling out box (81) is equipped with LED spotlight (82), and the inboard upper and lower two parts of groove plug-in box (81) are screwed with zoom camera (83) respectively, and groove plug-in box (81) The upper part is integrally provided with a lifting handle (84). 5. The curtain noise reducer for tunnel blasting according to claim 1, characterized in that, the metal frame (5) is arranged on the upper part of the fixed base (1), and the metal boundary plate (6) is Arc setting. 6. The curtain noise reducer for tunnel blasting according to claim 2, characterized in that, the semicircular impact-resistant plate (71), the inner glass plate (72) and the outer acrylic plate (73) Set to arc respectively. 7. The curtain noise reducer for tunnel blasting according to claim 1, characterized in that, the arc-shaped sound-absorbing board (7) is glued to the rear end of the metal boundary board (6). 8. The curtain noise reducer for tunnel blasting according to claim 2, characterized in that, the inner glass plate (72) and the outer acrylic plate (73) protrude forward, and the semicircular Shape anti-shock plate (71) protrudes backward.

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