Storable sound insulation wall for maintenance

Abstract

The sound insulation wall is formed by splicing a plurality of sound insulation units, each sound insulation unit comprises an upper sound insulation plate, a lower sound insulation plate, a belt and supporting legs, the bottom end of each upper sound insulation plate is hinged to the top end of the corresponding lower sound insulation plate through a hinge, the top end of each belt is fixedly connected with the back face of the corresponding upper sound insulation plate, and the bottom end of each belt is buckled with the back face of the corresponding lower sound insulation plate through a buckle. Supporting legs are inserted into the lower part of the lower sound insulation plate and are mounted on the supporting surface; when a single device is overhauled, the sound insulation wall is temporarily installed between the two diesel generators, so that the direct influence of noise of the diesel generators in working is reduced, and the influence of high-decibel noise on the mind and body of a maintainer is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of sound insulation equipment, and in particular relates to a retractable sound insulation wall for maintenance. Background Art

[0002] Diesel generators make a lot of noise when they are working. Conventional diesel generator rooms have multiple units arranged in parallel. When one of the generators needs to be repaired while the other diesel engines are still working, the maintenance personnel will be exposed to a very noisy environment, which will have a great impact on their physical and mental health. At the same time, because the diesel engine room is usually compact, setting up a permanent soundproof shed between each diesel engine will affect the corridor passage and the effective working space of the fire sprinkler. Summary of the invention

[0003] The purpose of the present invention is to provide a retractable soundproof wall for maintenance, which can be temporarily installed between two diesel generators to reduce the direct impact of the noise of the diesel generators in operation, so as to facilitate maintenance personnel to work.

[0004] The technical solution adopted by the present invention is a retractable sound insulation wall for maintenance, which is spliced ​​with multiple sound insulation units, each sound insulation unit includes an upper sound insulation board, a lower sound insulation board, a belt and a support foot, the bottom end of the upper sound insulation board and the top end of the lower sound insulation board are hinged by a hinge, the top end of the belt is fixedly connected to the back of the upper sound insulation board, and the bottom end is buckled with the back of the lower sound insulation board by a buckle, the lower part of the lower sound insulation board is inserted into the support foot, and the support foot is installed on the supporting surface.

[0005] Preferably, when the sound insulation unit is unfolded, the upper sound insulation board is inclined 45° toward the front end, and when the lower end of the belt is buckled with the lower sound insulation board, the bottom end of the upper sound insulation board is tightly attached to the top end of the lower sound insulation board.

[0006] Preferably, the belt is installed to the right of the center of each sound insulation unit.

[0007] Preferably, the upper sound insulation board and the lower sound insulation board of each of the above-mentioned sound insulation units are both double-layer cavity structures, and the partitions are staggered in the cavity to form a serpentine channel. A plurality of honeycomb blind holes are provided on the top of the upper sound insulation board, and an exhaust port is provided at the front end of the lower part of the lower sound insulation board, and the exhaust port can be detachably connected to the fan.

[0008] Preferably, the honeycomb blind holes are symmetrically arranged on both sides of the upper sound insulation board, and the diameter of each hole is smaller on the inside and larger on the outside.

[0009] Preferably, vents are provided at the joints between the bottom end of the upper sound insulation board and the top end of the lower sound insulation board, and the vents are connected by plugging in soft telescopic tubes.

[0010] Preferably, T-shaped grooves and T-shaped blocks are correspondingly arranged on the side surfaces of the lower sound insulation boards of the adjacent sound insulation units, and the two sound insulation boards are connected by inserting the T-shaped blocks into the T-shaped grooves.

[0011] Compared with the prior art, the beneficial effect of the present invention is that, when a single device is being repaired, a soundproof wall is temporarily installed between two diesel generators to reduce the direct impact of the noise of the working diesel generators and reduce the physical and mental impact of high-decibel noise on the maintenance personnel.

[0012] Among them, the sound insulation wall is composed of multiple sound insulation units, the length of which can be customized according to the specific usage scenario, and it is easy to store after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the unfolded structure of the sound insulation wall; Figure 2 This is a schematic diagram of the storage structure of the sound insulation wall; Figure 3 is a cross-sectional view of a sound insulation unit; Figure 4 Schematic diagram of the honeycomb blind hole side structure. DETAILED DESCRIPTION

[0014] The present invention will be further explained below in conjunction with the accompanying drawings to facilitate better understanding by those skilled in the art.

[0015] Example 1 like Figure 1-4 As shown, a retractable soundproof wall for maintenance is composed of a plurality of soundproof units, each of which includes an upper soundproof board 1, a lower soundproof board 2, a belt 3 and a support leg 4. The sides of the lower soundproof boards 2 of the adjacent soundproof units are correspondingly provided with T-slots and T-blocks, and the two soundproof boards are connected by inserting the T-blocks into the T-slots, which is convenient for loading and unloading; the bottom end of the upper soundproof board 1 and the top end of the lower soundproof board 2 are hinged by hinges 5, the top end of the belt 3 is fixedly connected to the back of the upper soundproof board 1, the bottom end of the belt 3 is buckled with the back of the lower soundproof board 2 by buckles 6, the lower part of the lower soundproof board 2 is inserted into the support leg 4, and the support leg 4 is installed on the supporting surface. When the soundproof unit is unfolded, the belt is loosened, the upper soundproof board 1 is tilted 45° to the front end, and has a better blocking and intercepting effect on the sound waves above. When the lower end of the belt 3 is buckled with the lower soundproof board 2, the bottom end of the upper soundproof board 1 is tightly attached to the top end of the lower soundproof board 2, and the upper soundproof board 1 and the lower soundproof board 2 are located in the same plane. When a single device is being repaired, a soundproof wall is temporarily installed between two diesel generators to reduce the direct impact of the noise of the working diesel generator and the physical and mental impact of high-decibel noise on the maintenance personnel. The soundproof wall is composed of multiple soundproof units, which can be customized in length according to the specific usage scenario and is easy to store after use.

[0016] The belt 3 is installed at the right side of the center of each sound insulation unit to prevent collision with each other when folded.

[0017] When sound waves propagate in solid media, due to the viscosity and thermal conductivity of the medium, part of the sound energy is converted into heat energy, resulting in loss of sound energy. This absorption attenuation is proportional to the first power of the sound wave frequency. In order to improve the sound insulation effect of the soundproof wall, the upper soundproof board 1 and the lower soundproof board 2 of each soundproof unit are double-layer cavity structures, and partitions 7 are staggered in the cavity to form a serpentine channel 8. The partitions 7 are arranged in the longitudinal direction. The top of the upper soundproof board 1 is provided with a number of honeycomb blind holes 9, and the lower front end of the lower soundproof board 2 is provided with an exhaust port, which can be detachably connected to the fan 10. Since the soundproof board absorbs the sound wave energy, part of the sound wave energy is converted into heat energy. The partition 7 is set to form the serpentine channel 8. On the one hand, the partition 7 increases the absorption of sound energy by the solid medium. On the other hand, the fan 10 blows cold air into the serpentine channel 8 to dissipate the heat of the soundproof board as soon as possible, thereby enhancing the absorption of sound energy.

[0018] Furthermore, the honeycomb blind holes 9 are symmetrically arranged on both sides of the upper sound insulation board 1, and the aperture of each hole is smaller on the inside and larger on the outside, thereby increasing the area of ​​sound waves contacting the solid medium, enhancing the absorption of sound wave energy, and achieving a better noise reduction effect.

[0019] In order to connect the serpentine channels 8 of the upper sound insulation board 1 and the lower sound insulation board 2 in series and use a fan to perform the heat dissipation function, vents 11 are correspondingly provided at the joints between the bottom end of the upper sound insulation board 1 and the top end of the lower sound insulation board 2, and the vents 11 are connected by plugging in the soft telescopic tube 12.

[0020] The above-described embodiments are only for describing the preferred implementation of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit and principles of the present invention, various modifications and improvements made by those skilled in the art to the technical solution of the present invention should all fall within the scope of protection determined by the claims of the present invention.

Claims

1. A retractable soundproof wall for maintenance, characterized in that: The invention is composed of a plurality of sound insulation units, each of which comprises an upper sound insulation board (1), a lower sound insulation board (2), a belt (3) and a support foot (4); the bottom end of the upper sound insulation board (1) and the top end of the lower sound insulation board (2) are hingedly connected via a hinge (5); the top end of the belt (3) is fixedly connected to the back of the upper sound insulation board (1); the bottom end is buckled with the back of the lower sound insulation board (2) via a buckle (6); the lower part of the lower sound insulation board (2) is inserted into the support foot (4), and the support foot (4) is installed on a supporting surface.

2. The retractable soundproof wall for maintenance according to claim 1, characterized in that: When the sound insulation unit is unfolded, the upper sound insulation board (1) is tilted toward the front end at 45 degrees, and when the lower end of the belt (3) is buckled with the lower sound insulation board (2), the bottom end of the upper sound insulation board (1) is tightly attached to the top end of the lower sound insulation board (2).

3. The retractable soundproof wall for maintenance according to claim 1, characterized in that: The belt (3) is installed at a position slightly to the right of the center of each sound insulation unit.

4. The retractable soundproof wall for maintenance according to claim 1, characterized in that: The upper sound insulation board (1) and the lower sound insulation board (2) of each sound insulation unit are both double-layer cavity structures, and the partition boards (7) are staggered in the cavity to form a serpentine channel (8). The top of the upper sound insulation board (1) is provided with a plurality of honeycomb blind holes (9), and the lower front end of the lower sound insulation board (2) is provided with an exhaust port, and the exhaust port can be detachably connected to a fan (10).

5. The retractable soundproof wall for maintenance according to claim 4, characterized in that: The honeycomb blind holes (9) are symmetrically arranged on both sides of the upper sound insulation board (1), and the diameter of each hole is smaller on the inside and larger on the outside.

6. The retractable soundproof wall for maintenance according to claim 4, characterized in that: Vents (11) are correspondingly provided at the joints between the bottom end of the upper sound insulation board (1) and the top end of the lower sound insulation board (2), and the vents (11) are connected by plugging in a soft telescopic tube (12).

7. The retractable soundproof wall for maintenance according to claim 1, characterized in that: The sides of the lower sound insulation plates (2) of the adjacent sound insulation units are correspondingly provided with T-shaped grooves and T-shaped blocks, and the two sound insulation plates are connected by inserting the T-shaped blocks into the T-shaped grooves.

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