Multi-layer noise reduction device for noise abatement

Abstract

The utility model discloses a multi-layer noise reduction device for noise control, and belongs to the technical field of noise control. The multilayer noise reduction device for noise treatment comprises a base assembly, a noise reduction assembly and a pair of locking assemblies, the noise reduction assembly is arranged above the base assembly, the locking assemblies are arranged in the base assembly, the base assembly is used for driving the noise reduction assembly to move, and the noise reduction assembly is used for absorbing noise in the environment. The locking assembly is used for achieving connection between the base assembly and the noise reduction assembly, the noise reduction assembly comprises a placement frame, four limiting grooves are sequentially formed in the two sides of the inner wall of the placement frame from front to back, a first silencing plate, a second silencing plate, a sound absorption plate and a sound insulation plate are slidably arranged in the four pairs of limiting grooves correspondingly, and grooves are formed in the two sides of the upper end of the placement frame correspondingly; and embedded blocks are arranged in the two grooves, and a top plate is installed on the top faces of the pair of embedded blocks.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of noise treatment, specifically to a multilayer noise reduction device for noise treatment. BACKGROUND

[0002] Noise is the sound emitted when the sound source vibrates irregularly. From a physiological point of view, all sounds that interfere with people's rest, study and work, i.e. unwanted sounds, are collectively referred to as noise. When noise adversely affects people and the surrounding environment, it forms noise pollution. Noise treatment is to block and intercept noise sources using various soundproofing, sound-absorbing materials and noise reduction equipment to reduce noise pollution.

[0003] A multilayer noise reduction device for noise treatment is disclosed in Chinese patent CN219457145U, which includes sound-absorbing panels. The number of sound-absorbing panels is two, and the inner side of the sound-absorbing panels is fixedly connected with a connecting frame. The connecting frame is fixedly connected with sound-absorbing packs inside. The number of sound-absorbing packs is several. The bottom of the connecting frame is fixedly connected with a placing plate. Both sides of the bottom of the placing plate are fixedly connected with support blocks. The bottom of the connecting frame is provided with a lifting assembly. The utility model is rotated by a reduction motor to drive the first screw rod to rotate. The first screw rod drives the second screw rod to rotate through a bevel gear. The second screw rod rotates to drive the sleeve to move upwards. The sleeve moving upwards drives the rectangular plate to move upwards. The rectangular plate moving upwards drives the roller to move upwards. The movement of the roller makes it enter the inside of the hollow sleeve, thereby achieving the advantage of easy movement, improving the convenience of the noise reduction device when moving, and also achieving the advantage of good noise reduction effect.

[0004] In actual use, dust in the air will adhere to the surface of the sound-absorbing panels and sound-absorbing packs. The accumulation of dust will cause the pores of the sound-absorbing panels and sound-absorbing packs to be blocked, reducing the air flow area and affecting the sound-absorbing effect. Dust may also cause the surface coating of the sound-absorbing panels and sound-absorbing packs to peel off or corrode, further affecting their structure and acoustic performance. In the scheme, the sound-absorbing packs are located inside the sound-absorbing panels, which cannot clean and maintain the dust on the surface of the sound-absorbing packs, reducing the sound-absorbing effect of the sound-absorbing packs and the practicality of the noise reduction device. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a multilayer noise reduction device for noise treatment to solve the problems raised in the background technology.

[0006] In view of the above problems, the technical scheme provided by the utility model is:

[0007] The utility model provides a multilayer noise reduction device for noise treatment, including base assembly, noise reduction assembly and a pair of locking assembly, noise reduction assembly sets up in the top of base assembly, locking assembly sets up in the inside of base assembly, base assembly is used for driving noise reduction assembly moves, noise reduction assembly is used for absorbing the noise in environment, locking assembly is used for realizing the connection between base assembly and noise reduction assembly, noise reduction assembly includes the placing frame, the inner wall both sides of placing frame are equipped with four limit grooves from front to back in proper order, the inside of four pairs of limit grooves is slid and equipped with first sound absorbing board, second sound absorbing board, sound absorption board and sound insulation board, the inside of both sides of the upper end of placing frame is equipped with recess, the inside of two recesses is equipped with embedded block, and a pair of embedded blocks install the top plate on the top surface.

[0008] Further, the first sound absorbing board, the second sound absorbing board, the sound absorption board and the sound insulation board are sequentially arranged from front to back, the upper end and the bottom end of the first sound absorbing board, the second sound absorbing board, the sound absorption board and the sound insulation board are respectively abutted with the bottom surface of the top plate and the inner bottom end of the placing frame, and the first sound absorbing board is close to the sound source.

[0009] The beneficial effects of the above further scheme are that, since the first sound absorbing board, the second sound absorbing board, the sound absorption board and the sound insulation board are sequentially arranged from front to back, and the first sound absorbing board is close to the sound source, the first sound absorbing board preferentially weakens high-frequency noise, the second sound absorbing board further processes residual high-frequency and part of medium-frequency noise, the sound absorption board absorbs medium-high frequency sound wave energy, and the sound insulation board blocks low-frequency vibration transmission, thereby processing high-frequency, medium-high frequency and low-frequency noise through sound reduction, sound absorption and sound insulation.

[0010] Further, first threaded holes are formed on both sides of the inner wall of the recess, second threaded holes are formed in the embedded blocks, and bolts are threadedly connected between the first threaded holes and the second threaded holes.

[0011] The beneficial effects of the above further scheme are that, through the cooperation of the first threaded holes, the second threaded holes and the bolts, when the bolts are unscrewed, the bolts are separated from the first threaded holes and the second threaded holes, and then the top plate is pulled upward, so that the embedded blocks are separated from the recesses, thereby facilitating the maintenance or replacement of the first sound absorbing board, the second sound absorbing board, the sound absorption board and the sound insulation board in the placing frame.

[0012] Further, first magnet pieces are installed on the upper end and the bottom end of the first sound absorbing board, the second sound absorbing board, the sound absorption board and the sound insulation board, second magnet pieces are installed on the bottom surface of the top plate and the inner bottom end of the placing frame, and the first magnet pieces and the second magnet pieces are magnetically attracted.

[0013] The beneficial effect of the above further scheme is that the cooperation of the first magnet piece and the second magnet piece makes the upper end and the bottom end of the first sound-absorbing plate, the second sound-absorbing plate, the sound-absorbing plate and the sound-insulating plate have no gap with the top plate and the bottom end inside the placing frame, thereby preventing sound wave leakage.

[0014] Further, the bottom end of the placing frame is provided with a pair of semicircular blocks, the inside of each of the pair of semicircular blocks is provided with a second square groove, the base assembly comprises a connecting strip, the top surface of the connecting strip is attached to the bottom surface of the placing frame, the upper end of the connecting strip is internally provided with a semicircular groove, and a pair of semicircular blocks are arranged in the pair of semicircular grooves, respectively.

[0015] Further, the pair of locking assemblies each comprises a square block, the square block is arranged in the second square groove, and the two ends of the square block extend into the pair of first square grooves, respectively, the outer wall of the square block is in sliding fit with the inner walls of the first square groove and the second square groove, the two ends of the square block are each provided with a shaft, the outer walls of the two shafts are each provided with a plurality of threads, and the outer parts of the two shafts are each threadedly connected with a locking ring, and the opposite faces of the two locking rings are respectively attached to the front face and the back face of the connecting strip.

[0016] The beneficial effect of the above further scheme is that when the base assembly and the noise reduction assembly need to be connected and installed, the semicircular blocks at the bottom end of the placing frame are placed into the semicircular grooves, at this time, the central axis of the second square groove on the semicircular block is collinear with the central axis of the first square groove in the semicircular groove, the square block is inserted into the second square groove and the first square groove, at this time, the two shafts are respectively located outside the connecting strip through the first square groove, and then the outer parts of the two shafts are threadedly installed with the locking rings, thereby realizing the connection and fixation between the noise reduction assembly and the base assembly, when the bottom rollers of the base assembly are worn and the base assembly and the noise reduction assembly need to be disassembled, the locking rings are removed, and the square blocks are pulled outward, so that the semicircular blocks can be separated from the semicircular grooves.

[0017] Further, the bottom end of the connecting strip is provided with a plurality of rollers, and one end of the connecting strip is provided with a plug, the inside of the connecting strip at the end away from the plug is internally provided with a plug groove, the inner wall of the plug groove is in sliding fit with the outer wall of the plug groove, and the inside of the plug and the inside of the plug groove are each provided with a screw hole.

[0018] The beneficial effect of the above further scheme is that due to the sliding fit of the plug and the plug groove, when the plug on the left side of one base assembly is inserted into the plug groove on the right side of another base assembly, at this time, the screw holes on the plug and the plug groove are located on the same axis line, so as to facilitate the subsequent connection between the two base assemblies through the bolt fasteners, and due to the connection between the base assembly and the noise reduction assembly, the assembly of the two noise reduction assemblies is realized, and by installing the rollers at the bottom end of the connecting strip, the noise reduction device can be moved to a specified position.

[0019] Compared with the prior art, the beneficial effects of the utility model are: the multilayer noise reduction device for noise treatment, since the first sound-absorbing board, the second sound-absorbing board, the sound-absorbing board and the sound insulation board are sequentially arranged from front to back, and the first sound-absorbing board is close to the sound source, the first sound-absorbing board preferentially weakens high-frequency noise, the second sound-absorbing board further processes residual high-frequency and part of medium-frequency noise, the sound-absorbing board absorbs medium-high frequency sound wave energy, and the sound insulation board blocks low-frequency vibration transmission, high-frequency, medium-high frequency and low-frequency noise are processed through sound absorption, sound absorption and sound insulation, in the use process of the noise reduction assembly, dust in the air can be attached to the surface of the first sound-absorbing board, the second sound-absorbing board, the sound-absorbing board and the sound insulation board, the accumulation of dust can cause the pores of the first sound-absorbing board, the second sound-absorbing board, the sound-absorbing board and the sound insulation board to be blocked, thereby reducing the sound absorption effect, at the same time, the dust can also cause the surface of the first sound-absorbing board, the second sound-absorbing board, the sound-absorbing board and the sound insulation board to discolor or be damaged, affecting the service life, the bolt is unscrewed, the bolt is separated from the first threaded hole and the second threaded hole, then the top plate is pulled upwards, the embedded block is separated from the groove, then the first sound-absorbing board, the second sound-absorbing board, the sound-absorbing board and the sound insulation board are pulled upwards, and they are separated from the limiting groove, so that the first sound-absorbing board, the second sound-absorbing board, the sound-absorbing board and the sound insulation board placed in the placing frame are maintained or replaced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A three-dimensional structure schematic view of a multilayer noise reduction device for noise treatment is provided for the utility model;

[0021] Figure 2 An explosion three-dimensional structure schematic view of a noise reduction assembly of a multilayer noise reduction device for noise treatment is provided for the utility model;

[0022] Figure 3 A three-dimensional structure schematic view of a multilayer noise reduction device for noise treatment is provided for the utility model; Figure 2 An enlarged schematic view of structure A;

[0023] Figure 4 An explosion three-dimensional structure schematic view of a base assembly of a multilayer noise reduction device for noise treatment is provided for the utility model;

[0024] Figure 5 An explosion three-dimensional structure schematic view of a locking assembly of a multilayer noise reduction device for noise treatment is provided for the utility model.

[0025] In the figure: 1, base assembly; 11, connecting strip; 12, semicircular groove; 13, first square groove; 14, roller; 15, plug; 16, screw hole; 2, noise reduction assembly; 21, placing frame; 22, limiting groove; 23, first sound-absorbing plate; 24, second sound-absorbing plate; 25, sound-absorbing plate; 26, sound insulation plate; 27, first magnet piece; 28, recess; 29, embedded block; 210, top plate; 211, second magnet piece; 212, bolt; 213, semicircular block; 214, second square groove; 3, locking assembly; 31, square block; 32, shaft; 33, locking ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a multilayer noise reduction device for noise treatment, including base assembly 1, noise reduction assembly 2 and a pair of locking assembly 3, noise reduction assembly 2 is set to the top of base assembly 1, locking assembly 3 is set to the inside of base assembly 1, base assembly 1 is used to drive noise reduction assembly 2 to move, noise reduction assembly 2 is used to absorb noise in environment, locking assembly 3 is used to realize the connection between base assembly 1 and noise reduction assembly 2, noise reduction assembly 2 includes placing frame 21, the inner wall both sides of placing frame 21 are sequentially provided with four limiting grooves 22 from front to back, the inside of four pairs of limiting grooves 22 is slidably provided with first sound-absorbing plate 23, second sound-absorbing plate 24, sound-absorbing plate 25 and sound insulation plate 26, recess 28 is set in the inside of the upper end both sides of placing frame 21, the inside of two recesses 28 is equipped with embedded block 29, the top surface of a pair of embedded blocks 29 is installed with top plate 210, since first sound-absorbing plate 23, second sound-absorbing plate 24, sound-absorbing plate 25 and sound insulation plate 26 are sequentially arranged from front to back, and first sound-absorbing plate 23 is close to sound source, first sound-absorbing plate 23 is close to sound source and preferentially weakens high frequency noise, second sound-absorbing plate 24 further processes residual high frequency and part of mid-frequency noise, sound-absorbing plate 25 absorbs mid-high frequency sound wave energy, sound insulation plate 26 blocks low-frequency vibration transmission, first sound-absorbing plate 23, second sound-absorbing plate 24, sound-absorbing plate 25 and sound insulation plate 26 are pulled upwards and separated from limiting groove 22, so that first sound-absorbing plate 23, second sound-absorbing plate 24, sound-absorbing plate 25 and sound insulation plate 26 in placing frame 21 are maintained or replaced.

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0029] Please refer to Figures 1-5 The utility model provides a technical scheme: first sound absorbing board 23, second sound absorbing board 24, sound absorbing board 25 and sound insulation board 26 are sequentially arranged from front to back, the upper end and bottom end of first sound absorbing board 23, second sound absorbing board 24, sound absorbing board 25 and sound insulation board 26 are respectively pressed and attached with the bottom surface of top plate 210 and the inside bottom end of placing frame 21, first sound absorbing board 23 is close to sound source, the inner wall both sides of recess 28 are provided with first threaded hole, the inside of embedded block 29 is provided with second threaded hole, a pair of first threaded hole and second threaded hole are threadedly connected with bolt 212, the upper end and bottom end of first sound absorbing board 23, second sound absorbing board 24, sound absorbing board 25 and sound insulation board 26 are all installed with first magnet sheet 27, the bottom surface of top plate 210 and the inside bottom end of placing frame 21 are all installed with second magnet sheet 211, first magnet sheet 27 and second magnet sheet 211 are magnetically attracted, through the cooperation of first magnet sheet 27 and second magnet sheet 211, the upper end and bottom end of first sound absorbing board 23, second sound absorbing board 24, sound absorbing board 25 and sound insulation board 26 and the inside bottom end of top plate 210 and placing frame 21 have no gap, prevent sound wave leakage, when unscrewing bolt 212, make bolt 212 and first threaded hole and second threaded hole separate, then pull up top plate 210, make embedded block 29 separate with recess 28, thereby being convenient for the maintenance or replacement of first sound absorbing board 23, second sound absorbing board 24, sound absorbing board 25 and sound insulation board 26 in placing frame 21.

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0031] Please refer to Figures 1-5The utility model provides a technical scheme: one pair of semicircle blocks 213 is installed to the bottom end of placing frame 21, second square groove 214 is all set up in one pair of semicircle blocks 213, base assembly 1 includes connecting strip 11, the top surface of connecting strip 11 is conformed to the bottom surface of placing frame 21, and the inside of the upper end of connecting strip 11 is set up semicircle groove 12, and one pair of semicircle blocks 213 is arranged in the inside of one pair of semicircle grooves 12, and the both sides of the inner wall of one pair of semicircle grooves 12 are set up first square groove 13, and one pair of locking assembly 3 all includes square 31, and square 31 is arranged in the inside of second square groove 214, and the both ends of square 31 respectively extend to the inside of one pair of first square grooves 13, and the outer wall of square 31 is slidably connected with the inner wall of first square groove 13 and second square groove 214, and the both ends of square 31 are all installed with axle rod 32, and the outer wall of two axle rods 32 is equipped with a plurality of threads, and the outside of two axle rods 32 is all threadedly connected with locking ring 33, and the opposite side of two locking rings 33 is conformed to the front and back of connecting strip 11 respectively, and the bottom end of connecting strip 11 is installed with a plurality of gyro wheels 14, and one end of connecting strip 11 is installed with plug block 15, and the inside of connecting strip 11 is set up plug groove in the end away from plug block 15, and the inner wall of plug groove is slidably connected with the outer wall of plug groove, and the inside of plug block 15 and the inside of both sides of plug groove are set up screw hole 16, due to the sliding fit of plug block 15 and plug groove, when the plug block 15 of one base assembly 1 left side is inserted into the plug groove of another base assembly 1 right side, the screw hole 16 on plug block 15 and the screw hole 16 on plug groove are located on the same axis line, so as to realize the connection between two base assemblies 1 through bolt fastener subsequently, due to the connection of base assembly 1 and noise reduction assembly 2, the assembly of two noise reduction assemblies 2 is realized, by installing gyro wheel 14 on the bottom end of connecting strip 11, the noise reduction device is moved to the specified position, when the base assembly 1 bottom gyro wheel 14 wears and needs to disassemble base assembly 1 and noise reduction assembly 2, locking ring 33 is removed, and square 31 is pulled outward, so that semicircle block 213 can be separated from semicircle groove 12.

[0032] Specifically, the working principle of the multi-layer noise reduction device for noise treatment: in use, due to the sliding fit of the plug 15 and the slot, when a plug 15 on the left side of a base assembly 1 is inserted into the slot on the right side of another base assembly 1, the screw hole 16 on the plug 15 and the screw hole 16 on the slot are located on the same axis line, so as to facilitate the connection between the two base assemblies 1 by the bolt fastener. Since the base assembly 1 is connected with the noise reduction assembly 2, the assembly of the two noise reduction assemblies 2 is realized. By installing the roller 14 at the bottom end of the connecting strip 11, the noise reduction device is moved to the designated position. Since the first sound-absorbing plate 23, the second sound-absorbing plate 24, the sound-absorbing plate 25 and the sound insulation plate 26 are arranged from front to back, and the first sound-absorbing plate 23 is close to the sound source, the first sound-absorbing plate 23 is close to the sound source to weaken the high-frequency noise first. The second sound-absorbing plate 24 further processes the residual high-frequency and part of the middle-frequency noise. The sound-absorbing plate 25 absorbs the energy of the middle and high-frequency sound waves. The sound insulation plate 26 blocks the transmission of low-frequency vibration. Through the cooperation of the first magnet piece 27 and the second magnet piece 211, the upper end and the bottom end of the first sound-absorbing plate 23, the second sound-absorbing plate 24, the sound-absorbing plate 25 and the sound insulation plate 26 are gapless with the top plate 210 and the inner bottom end of the placing frame 21, preventing sound wave leakage. When the bolt 212 is unscrewed, the bolt 212 is separated from the first threaded hole and the second threaded hole. Then pull the top plate 210 upwards, so that the embedded block 29 is separated from the groove 28. Pull the first sound-absorbing plate 23, the second sound-absorbing plate 24, the sound-absorbing plate 25 and the sound insulation plate 26 upwards, so that they are separated from the limiting groove 22, thereby facilitating the maintenance or replacement of the first sound-absorbing plate 23, the second sound-absorbing plate 24, the sound-absorbing plate 25 and the sound insulation plate 26 in the placing frame 21.

Claims

1. A multi-layer noise reduction device for noise mitigation, characterized in that, The utility model provides a noise reduction device, including base assembly (1), noise reduction assembly (2) and a pair of locking assembly (3), noise reduction assembly (2) sets up at the top of base assembly (1), locking assembly (3) sets up inside base assembly (1), base assembly (1) is used to drive noise reduction assembly (2) to move, noise reduction assembly (2) is used for absorbing the noise in environment, locking assembly (3) is used for realizing the connection between base assembly (1) and noise reduction assembly (2), noise reduction assembly (2) includes placing frame (21), the inner wall both sides of placing frame (21) are sequentially equipped with four limit slots (22) from front to back, and the inside of four pairs of limit slots (22) is slidably provided with first sound-absorbing board (23), second sound-absorbing board (24), sound-absorbing board (25) and sound insulation board (26) respectively, recess (28) is set up in the inside of both sides of the upper end of placing frame (21), and the inside of two recesses (28) is equipped with embedding block (29), and the top surface of a pair of embedding block (29) is installed with top plate (210).

2. A multi-layer noise reduction device for noise mitigation according to claim 1, wherein, The first sound-absorbing board (23), second sound-absorbing board (24), sound-absorbing board (25) and sound insulation board (26) are sequentially arranged from front to back, and the upper end and bottom end of the first sound-absorbing board (23), second sound-absorbing board (24), sound-absorbing board (25) and sound insulation board (26) are respectively abutted with the bottom surface of the top plate (210) and the inner bottom end of the placing frame (21), and the first sound-absorbing board (23) is close to the sound source.

3. A multi-layer noise reduction device for noise mitigation according to claim 2, wherein, The inner wall of the recess (28) is provided with a first threaded hole on both sides, and the inside of the embedding block (29) is provided with a second threaded hole, and a bolt (212) is threadedly connected between the first threaded hole and the second threaded hole.

4. A multi-layer noise reduction device for noise mitigation according to claim 3, wherein, The upper end and bottom end of the first sound-absorbing board (23), second sound-absorbing board (24), sound-absorbing board (25) and sound insulation board (26) are provided with a first magnet piece (27), and the bottom surface of the top plate (210) and the inner bottom end of the placing frame (21) are provided with a second magnet piece (211), and the first magnet piece (27) and the second magnet piece (211) are magnetically attracted.

5. A multi-layer noise reduction device for noise mitigation according to claim 4, wherein, The bottom end of the placing frame (21) is provided with a pair of semicircular blocks (213), and the inside of the semicircular blocks (213) is provided with a second square groove (214), and the base assembly (1) comprises a connecting strip (11), the top surface of the connecting strip (11) is abutted with the bottom surface of the placing frame (21), and the upper end of the connecting strip (11) is provided with a semicircular groove (12) in the inside, and the semicircular blocks (213) are arranged in the semicircular grooves (12) respectively, and the inner wall of the semicircular grooves (12) is provided with a first square groove (13) on both sides.

6. A multi-layer noise reduction device for noise mitigation according to claim 5, wherein, The pair of locking assemblies (3) each comprises a square block (31) arranged in the second square groove (214), and the two ends of the square block (31) extend into the pair of first square grooves (13), the outer wall of the square block (31) is in sliding fit with the inner walls of the first square grooves (13) and the second square groove (214), the two ends of the square block (31) are each provided with a shaft rod (32), the outer wall of each of the two shaft rods (32) is provided with a plurality of threads, and the outer part of each of the two shaft rods (32) is threadedly connected with a locking ring (33), and the opposite side of each of the two locking rings (33) is respectively attached to the front face and the back face of the connecting strip (11).

7. A multi-layer noise reduction device for noise mitigation according to claim 6, wherein, The bottom end of the connecting strip (11) is provided with a plurality of rollers (14), one end of the connecting strip (11) is provided with an insertion block (15), the inside of the end of the connecting strip (11) away from the insertion block (15) is provided with an insertion slot, the inner wall of the insertion slot is in sliding fit with the outer wall of the insertion slot, and the inside of the insertion block (15) and the inside of the two sides of the insertion slot are each provided with a threaded hole (16).

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