CN219604977U - Noise elimination and reduction device - Google Patents

Abstract

The utility model discloses a noise elimination and reduction device, which comprises a machine room main body (1), a noise reduction and absorption composite layer, a noise reduction column (2), a filter screen (3), a connecting block (12) and a locking component; the machine room main body (1) is of a hollow box-shaped structure, mechanical equipment for generating noise is arranged in the machine room main body (1), and a noise reduction column (2) is fixedly arranged at the top opening of the machine room main body (1) so that the machine room main body (1) is communicated with the outside through the noise reduction column (2); the filter screen (3) is embedded in the noise reduction column (2), one end of the filter screen (3) is movably inserted into the noise reduction column (2), the other end of the filter screen (3) is fixedly connected with the connecting block (12), and the connecting block (12) is movably installed in the noise reduction column (2) through the locking component. The utility model can solve the problem that the noise reduction column opening in the prior art causes garbage impurities to enter the machine room main body.

Description

Noise elimination and reduction device

Technical Field

The utility model relates to environment-friendly equipment, in particular to a silencing and noise-reducing device.

Background

In life production, the utilization rate of mechanical equipment is very high, noise is very high when mechanical equipment such as a generator runs, the average indoor measurement sound pressure level can reach 100 to 120 dB, and compared with 15 to 35 dB required by the national noise standard requirement of industrial enterprises, the noise is seriously out of standard. Meanwhile, the indoor noise is not easy to attenuate, the noise generated by mechanical equipment can cause serious noise pollution to the working environment, the noise is harmful to the physiological health and psychological health of staff, and the rest and life of residents can be seriously damaged when the outdoor noise value is up to 90 dB; therefore, in terms of labor protection and influence on surrounding residents, a high-efficiency noise elimination and reduction device capable of reducing noise of mechanical equipment such as a generator to meet the national environmental noise standard in urban areas is needed.

Chinese patent No. 202120717106.9 discloses a noise elimination and reduction device for computer lab, including the computer lab main part, the one end fixedly connected with noise reduction board of computer lab main part, the hollow is seted up to one side of computer lab main part, the inner wall fixedly connected with noise reduction case of hollow, two connecting holes are seted up to one side symmetry of noise reduction case, the amortization support mainly comprises landing leg and backup pad, the upper end of backup pad is equipped with a plurality of heat dissipation amortization hole, the heat dissipation amortization hole runs through the backup pad, paste on the inside wall of heat dissipation amortization hole has first sound absorbing layer, the inner wall of noise reduction case is paintd the sound absorbing paint. Noise reduction post opening part is opened for a long time in the device, and when carrying out noise elimination processing, rubbish impurity can get into inside the computer lab main part, influences the normal operating of inside mechanical equipment. Therefore, there is a need to provide a noise abatement and noise reduction device that can solve the problem in the prior art that noise abatement post opening leads to rubbish impurity to get into in the machine room main part.

Disclosure of Invention

The utility model aims to provide a silencing and noise-reducing device which can solve the problem that garbage impurities enter a machine room body due to the opening of a noise-reducing column in the prior art.

The utility model is realized in the following way:

a noise elimination and reduction device comprises a machine room main body, a noise reduction and absorption composite layer, a noise reduction column, a filter screen, a connecting block and a locking component; the machine room main body is of a hollow box-shaped structure, mechanical equipment for generating noise is arranged in the machine room main body, and a noise reduction column is fixedly arranged at the top opening of the machine room main body, so that the machine room main body is communicated with the outside through the noise reduction column; the filter screen inlays the dress and is in the noise reduction post, and the one end and the noise reduction post activity grafting of filter screen, the other end and the connecting block fixed connection of filter screen, the connecting block passes through locking component movable mounting in the noise reduction post.

The noise-reducing and sound-absorbing composite layer comprises a sound-absorbing plate, a sound-insulating felt and sound-absorbing cotton; the sound-proof felt is paved on the inner wall of the machine room main body, the sound-absorbing cotton is paved on the inner wall of the sound-proof felt, and the sound-absorbing board is paved on the inner wall of the sound-absorbing cotton.

The noise reduction column is of a structure with a narrow upper part and a wide lower part, the filter screen is embedded at the top neck opening of the noise reduction column through the locking component, a noise reduction structure is arranged in the noise reduction column, and the noise reduction structure is positioned below the top neck opening of the noise reduction column.

The noise reduction structure comprises a sound absorption wedge and noise reduction cotton; the noise reduction cotton is paved on the inner wall of the noise reduction column, and a plurality of sound absorption wedges are arranged on the noise reduction cotton at intervals.

The noise reduction column is characterized in that slots are formed in the inner walls of two sides of the noise reduction column, one end of the filter screen is inserted into one side slot of the noise reduction column, the connecting block is embedded into the other side slot of the noise reduction column, a first sliding groove is formed in the noise reduction column, and the locking assembly is arranged in the first sliding groove and is movably abutted to the connecting block.

The locking component comprises a threaded rod, a clamping block, a telescopic spring and a movable frame; the clamping block can be embedded in the first chute in a lifting manner, a clamping groove is formed at the top of the connecting block, and the bottom of the clamping block can be inserted in the clamping groove; the second sliding groove is formed in the clamping block, the movable frame is embedded in the second sliding groove in a lifting mode, the upper end of the threaded rod upwards penetrates through the noise reduction column and is screwed with the noise reduction column through threads, and the lower end of the threaded rod is screwed with the movable frame through threads; the telescopic spring is coaxially sleeved on the threaded rod, the upper end of the telescopic spring is connected with the inner wall of the top of the first sliding groove, and the lower end of the telescopic spring is connected with the top of the clamping block.

The noise reduction column in be formed with the spacing groove, the spacing groove communicates perpendicularly with first spout, the one end of a pair of stopper is connected respectively on the both sides face of fixture block, the other end of a pair of stopper respectively with the both sides inner wall sliding connection of spacing groove.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model has the advantages that the filter screen and the locking component are arranged, and the filter screen can intercept and filter the garbage and impurities entering the noise reduction column, so that the garbage impurities are prevented from entering the machine room main body to influence the normal operation of mechanical equipment in the machine room main body, and the opening function of the noise reduction column is ensured; the filter screen is locked in the noise reduction column through the locking component, so that the filter screen is convenient and quick to assemble, disassemble and replace, and garbage on the filter screen can be cleaned conveniently.

2. The noise reduction and sound absorption composite layer and the noise reduction structure are arranged, the noise reduction and sound absorption composite layer forms triple noise reduction effects in the machine room main body, and the noise reduction structure forms double noise reduction effects in the noise reduction column, so that the noise reduction effects of the machine room main body and the noise reduction column are improved, and environmental pollution caused by noise generated by mechanical equipment is avoided.

Drawings

FIG. 1 is a perspective view of a sound attenuating and noise reducing device of the present utility model;

FIG. 2 is a cross-sectional view of the noise abatement and noise reduction device of the present utility model;

fig. 3 is an enlarged schematic view at a in fig. 2.

In the figure, 1, a machine room main body; 2. a noise reduction column; 3. a filter screen; 4. a sound absorbing panel; 5. sound absorption wedge; 6. silencing cotton; 7. a sound-insulating felt; 8. sound absorbing cotton; 9. a first chute; 10. a threaded rod; 11. a clamping block; 12. a connecting block; 13. a limit groove; 14. a limiting block; 15. a telescopic spring; 16. a second chute; 17. a moving frame; 18. a clamping groove.

Detailed Description

The utility model will be further described with reference to the drawings and the specific examples.

Referring to fig. 1 to 3, a noise elimination and reduction device includes a machine room main body 1, a noise reduction and absorption composite layer, a noise reduction column 2, a filter screen 3, a connecting block 12 and a locking assembly; the machine room main body 1 is of a hollow box-shaped structure, mechanical equipment for generating noise is arranged in the machine room main body 1, the top of the machine room main body 1 is opened and fixedly provided with a noise reduction column 2, so that the machine room main body 1 is communicated with the outside through the noise reduction column 2; the filter screen 3 inlays the dress in noise reduction post 2, and the one end and the activity of noise reduction post 2 of filter screen 3 are pegged graft, and the other end and the connecting block 12 fixed connection of filter screen 3, connecting block 12 pass through locking component movable mounting in noise reduction post 2.

The machine room main body 1 and the noise reduction column 2 can be constructed by adopting a conventional process according to the size and the installation requirement of mechanical equipment, and the details are not repeated here. Noise reduction is realized in the machine room main body 1 through the noise reduction and sound absorption composite layer, and the influence of noise on the external environment is reduced while the ventilation function is ensured through the noise reduction column 2. Through the setting of filter screen 3, can prevent that outside rubbish impurity from getting into in the computer lab main part 1 through noise reduction post 2 to guarantee the normal operating of inside mechanical equipment, filter screen 3 can adopt flexible plastics or metal material to make, has certain deformability, is convenient for inlay it into noise reduction post 2 in, and compresses tightly fixedly through locking component through connecting block 12.

Referring to fig. 2, the noise-reducing and sound-absorbing composite layer includes a sound-absorbing board 4, a sound-insulating felt 7 and sound-absorbing cotton 8; the sound-proof felt 7 is paved on the inner wall of the machine room main body 1, the sound-absorbing cotton 8 is paved on the inner wall of the sound-proof felt 7, and the sound-absorbing board 4 is paved on the inner wall of the sound-absorbing cotton 8.

Preferably, the sound-proof felt 7 can be made of rubber, polymer materials and the like in the prior art as main raw materials, has a certain flexibility, can be used for matching with gypsum boards, is commonly used for wall sound insulation and ceiling sound insulation, and can be used for primarily absorbing and reducing noise in the machine room main body 1. The sound absorbing cotton 8 can adopt artificial inorganic fibers in the prior art, adopts natural ores such as quartz sand, limestone, dolomite and the like as main raw materials, is matched with chemical raw materials such as sodium carbonate, borax and the like to be melted into glass, and is blown by external force to be thrown into flocculent fine fibers in a melting state, wherein the fibers are in a three-dimensional intersection and intertwined with each other, and a plurality of fine gaps are formed, so that the sound absorbing cotton has a good noise reduction effect. The acoustic board 4 can adopt the acoustic decorative material board commonly used in the interior decoration in the prior art, has the advantages of sound absorption, environmental protection, flame retardance, heat insulation, heat preservation, moisture resistance, mildew resistance, easy dust removal, easy cutting, split, simple construction, good stability, good shock resistance, good independence, high cost performance and the like, thereby ensuring the triple absorption of noise in the machine room main body 1 and achieving good noise reduction effect.

Referring to fig. 1 and 2, the noise reduction column 2 is in a structure with a narrow upper part and a wide lower part, the filter screen 3 is embedded in the top neck of the noise reduction column 2 through a locking component, a noise reduction structure is arranged in the noise reduction column 2, and the noise reduction structure is positioned below the top neck of the noise reduction column 2.

Through the binding off design of noise reduction post 2 and its inside noise reduction structure can prevent effectively that sound wave from outwards propagating from noise reduction post 2, guarantees its uncovered function.

Referring to fig. 2, the noise reduction structure includes a sound absorption wedge 5 and noise reduction cotton 6; the noise reduction cotton 6 is paved on the inner wall of the noise reduction column 2, and a plurality of sound absorption wedges 5 are arranged on the noise reduction cotton 6 at intervals.

Preferably, the noise damping cotton 6 may be a rolled or sheet material processed by various processes from a single or multiple different fibers in the prior art to achieve the first heavy noise reduction in the noise reduction column 2. The sound absorption wedges 5 are wedge-shaped sound absorbers which are designed and manufactured to realize gradual transition of acoustic impedance between air and the silencing cotton 6 and obtain good impedance matching and sound absorption effects, and have high sound absorption coefficients, and the sound absorption wedges 5 can be arranged at equal intervals. The second noise reduction in the noise reduction column 2 is realized through the sound absorption wedge 5 and the noise reduction cotton 6.

Referring to fig. 2 and 3, slots (not shown) are formed on inner walls of two sides of the noise reduction column 2, so that one end of the filter screen 3 is inserted into one slot of the noise reduction column 2, the connecting block 12 is inserted into the other slot of the noise reduction column 2, a first chute 9 is formed in the noise reduction column 2, and the locking assembly is disposed in the first chute 9 and movably abuts against the connecting block 12.

The filter screen 3 is installed through the mode of pegging graft, easy dismounting, swift, and the vertical setting of first spout 9 for locking assembly's installation and operation make its butt on connecting block 12, realize the locking to filter screen 3, prevent that filter screen 3 from shifting, perhaps break away from with connecting block 12, convenient to detach and change filter screen 3.

Referring to fig. 3, the locking assembly includes a threaded rod 10, a clamping block 11, a telescopic spring 15 and a moving frame 17; the clamping block 11 is embedded in the first chute 9 in a lifting manner, a clamping groove 18 is formed at the top of the connecting block 12, and the bottom of the clamping block 11 can be inserted in the clamping groove 18; a second chute 16 is formed in the clamping block 11, a movable frame 17 is embedded in the second chute 16 in a lifting manner, the upper end of the threaded rod 10 upwards penetrates through the noise reduction column 2 and is screwed with the noise reduction column 2 through threads, and the lower end of the threaded rod 10 is screwed with the movable frame 17 through threads; the telescopic spring 15 is coaxially sleeved on the threaded rod 10, the upper end of the telescopic spring 15 is connected with the inner wall of the top of the first chute 9, and the lower end of the telescopic spring 15 is connected with the top of the clamping block 11.

The upper end of the threaded rod 10 is manually rotated to enable the threaded rod 10 to rotate downwards relative to the noise reduction column 2, and the moving frame 17 is limited in the second sliding groove 16 and cannot rotate, so that the rotation of the threaded rod 10 is converted into linear motion of the moving frame 17 in the second sliding groove 16 through threads, and the threaded rod 10 pushes the clamping block 11 downwards through the moving frame 17 to move downwards. After the movable frame 17 is abutted against the bottom of the second chute 16, the threaded rod 10 is continuously rotated, so that the movable frame 17 pushes the bottom of the clamping block 11 to move downwards and insert into the clamping groove 18, and effective locking of the clamping block 11 on the connecting block 12 is ensured. The extension spring 15 is always in a compressed state to a certain extent, so that the locking effect on the connecting block 12 is further ensured by the reaction force of the extension spring 15.

Referring to fig. 3, a limiting groove 13 is formed in the noise reduction column 2, the limiting groove 13 is vertically communicated with the first sliding groove 9, one ends of a pair of limiting blocks 14 are respectively connected to two side surfaces of the clamping block 11, and the other ends of the pair of limiting blocks 14 are respectively slidably connected to two side inner walls of the limiting groove 13.

The clamping block 11 can control the moving range in the limiting groove 13 through the lifting of the pair of limiting blocks 14, so that the clamping block 11 is prevented from being separated from the first sliding groove 9, and the clamping block 11 is also prevented from being twisted or deviated.

Referring to fig. 1 to 3, the application method and the working principle of the utility model are as follows:

the machine room main body 1 is constructed at a designated position and used for installation and operation of mechanical equipment, noise sound waves generated by the mechanical equipment are absorbed in a triple mode through the sound absorbing plate 4, the sound insulating felt 7 and the sound absorbing cotton 8, and therefore an effective noise reduction effect is achieved. Noise sound waves in the noise reduction column 2 are doubly absorbed through the sound absorption wedges 5 and the noise reduction cotton 6, so that an effective noise reduction effect is achieved.

One end of the filter screen 3 is inserted into a slot on one side inside the noise reduction column 2, the connecting block 12 at the other end of the filter screen 3 is inserted into a slot on the other side inside the noise reduction column 2, the threaded rod 10 is rotated downwards, the moving frame 17 moves downwards along the second sliding groove 16, the moving frame 17 is pressed against the bottom of the second sliding groove 16, the clamping block 11 moves downwards along the first sliding groove 9 until the bottom of the clamping block 11 is inserted into the clamping groove 18, the clamping block 11 is locked on the connecting block 12, the filter screen 3 is locked, the specification of the filter screen 3 can be selected according to the filtering effect, and the filter screen is used for preventing garbage impurities from entering the machine room main body 1 and ensuring normal operation of mechanical equipment in the machine room main body 1.

The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model should be included in the scope of the present utility model.

Claims (7)

1. A noise elimination and reduction device is characterized in that: the noise-reducing and sound-absorbing composite floor comprises a machine room main body (1), a noise-reducing and sound-absorbing composite layer, a noise-reducing column (2), a filter screen (3), a connecting block (12) and a locking component; the machine room main body (1) is of a hollow box-shaped structure, mechanical equipment for generating noise is arranged in the machine room main body (1), and a noise reduction column (2) is fixedly arranged at the top opening of the machine room main body (1) so that the machine room main body (1) is communicated with the outside through the noise reduction column (2); the filter screen (3) is embedded in the noise reduction column (2), one end of the filter screen (3) is movably inserted into the noise reduction column (2), the other end of the filter screen (3) is fixedly connected with the connecting block (12), and the connecting block (12) is movably installed in the noise reduction column (2) through the locking component.

2. The muffling and noise reducing device of claim 1, wherein: the noise-reduction and sound-absorption composite layer comprises a sound-absorption plate (4), a sound-insulation felt (7) and sound-absorption cotton (8); the sound insulation felt (7) is paved on the inner wall of the machine room main body (1), the sound absorption cotton (8) is paved on the inner wall of the sound insulation felt (7), and the sound absorption plate (4) is paved on the inner wall of the sound absorption cotton (8).

3. The muffling and noise reducing device of claim 1, wherein: the noise reduction column (2) is of a structure with a narrow upper part and a wide lower part, the filter screen (3) is embedded at the top neck opening of the noise reduction column (2) through the locking component, the noise reduction structure is arranged in the noise reduction column (2), and the noise reduction structure is positioned below the top neck opening of the noise reduction column (2).

4. A sound attenuation and noise reduction device according to claim 3, characterized in that: the noise reduction structure comprises a sound absorption wedge (5) and noise reduction cotton (6); the noise reduction cotton (6) is paved on the inner wall of the noise reduction column (2), and the plurality of sound absorption wedges (5) are arranged on the noise reduction cotton (6) at intervals.

5. The muffling noise reduction device according to claim 1 or 3 or 4, characterized in that: the noise reduction column is characterized in that slots are formed in the inner walls of two sides of the noise reduction column (2), one end of the filter screen (3) is inserted into one side slot of the noise reduction column (2), the connecting block (12) is embedded into the other side slot of the noise reduction column (2), a first sliding groove (9) is formed in the noise reduction column (2), and the locking assembly is arranged in the first sliding groove (9) and movably abutted to the connecting block (12).

6. The muffling and noise reducing device of claim 5, wherein: the locking assembly comprises a threaded rod (10), a clamping block (11), a telescopic spring (15) and a movable frame (17); the clamping block (11) is embedded in the first chute (9) in a lifting manner, a clamping groove (18) is formed at the top of the connecting block (12), and the bottom of the clamping block (11) can be inserted in the clamping groove (18); a second chute (16) is formed in the clamping block (11), the movable frame (17) is embedded in the second chute (16) in a lifting manner, the upper end of the threaded rod (10) upwards penetrates through the noise reduction column (2) and is screwed with the noise reduction column (2) in a threaded manner, and the lower end of the threaded rod (10) is screwed with the movable frame (17) in a threaded manner; the telescopic spring (15) is coaxially sleeved on the threaded rod (10), the upper end of the telescopic spring (15) is connected with the inner wall of the top of the first sliding groove (9), and the lower end of the telescopic spring (15) is connected with the top of the clamping block (11).

7. The muffling and noise reducing device of claim 6, wherein: a limiting groove (13) is formed in the noise reduction column (2), the limiting groove (13) is vertically communicated with the first sliding groove (9), one ends of a pair of limiting blocks (14) are respectively connected to two side surfaces of the clamping block (11), and the other ends of the pair of limiting blocks (14) are respectively connected with two side inner walls of the limiting groove (13) in a sliding mode.