CN215409219U

CN215409219U - Silencing device for air blower

Info

Publication number: CN215409219U
Application number: CN202121524876.8U
Authority: CN
Inventors: 万桂国; 万露凡
Original assignee: Wuxi Liheng Environmental Protection Engineering Co ltd
Current assignee: Wuxi Liheng Environmental Protection Engineering Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2022-01-04
Anticipated expiration: 2031-07-06

Abstract

The utility model belongs to the technical field of blower equipment, in particular to a silencing device for a blower, which comprises a sound insulation box, wherein a concave-convex silencing plate is fixedly arranged on the inner side wall of the sound insulation box, an installation box is arranged in the sound insulation box, the left end surface, the right end surface and the upper end surface of the installation box are respectively communicated with a silencing cover, a blower body is fixedly arranged on the bottom end surface in the installation box, so that noise generated by the blower body can be reflected back through the silencing covers and collides with transmitted noise and other noise to perform resistance silencing, the noise reduction effect is achieved, sound waves transmitted into the sound insulation box are further absorbed through the concave-convex silencing plate and silencing cotton, the noise transmission of the blower is reduced, other personnel are prevented from being interfered, and the vibration generated by the silencing box in the working process can be reduced through the mutual matching of a first spring and a second spring, avoid other parts to produce the noise because of vibrations, the effectual effect that improves the amortization.

Description

Silencing device for air blower

Technical Field

The utility model relates to the technical field of blower equipment, in particular to a silencer for a blower.

Background

The blower mainly comprises the following six parts: the blower eccentrically runs by a rotor which is offset in a cylinder, and causes the volume change between blades in a rotor groove to suck, compress and discharge air, and automatically sends lubrication to the oil dripping nozzle by using the pressure difference of the blower during running, so that the lubrication is dripped into the cylinder to reduce friction and noise and simultaneously keep gas in the cylinder not to flow back.

When the blower is installed on a screw pump device for use, the blower generates great noise, the noise generated by the blower affects the life of people due to poor noise reduction of the existing blower, and when the blower works, the internal parts of the blower are easy to generate friction in the operation process and also generate great noise, so that the noise reduction device for the blower is necessary to provide a noise reduction device for the blower to solve the problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background art, the utility model provides a silencer for a blower, which has the characteristics that noise generated by a blower body can be reflected back through a silencing cover to collide with transmitted noise and other noises, so that the noise reduction effect is realized, and through the mutual matching of a first spring and a second spring, the vibration generated by a silencing box in the working process can be reduced, the noise generated by other parts due to vibration is avoided, and the silencing is effectively improved.

In order to achieve the purpose, the utility model provides the following technical scheme: a silencing device for a blower comprises a sound insulation box, wherein a concave-convex silencing plate is fixedly mounted on the inner side wall of the sound insulation box, an installation box is arranged in the sound insulation box, the left end surface and the right end surface of the installation box are communicated with a silencing cover, a blower body is fixedly mounted on the inner bottom end surface of the installation box, a buffer plate is fixedly mounted on the bottom end surface of the installation box, a U-shaped fixing frame is arranged on the outer side wall of the buffer plate, sliding grooves are formed in the upper ends of the left side wall and the right side wall of the fixing frame respectively and are in sliding connection with the left end and the right end of the buffer plate respectively, two fixing rods distributed front and back are arranged below the buffer plate, two sliding blocks distributed left and right are movably sleeved on the outer side wall of each fixing rod, supporting rods are movably connected with the upper end surfaces of the two sliding blocks through rotating shafts, and second springs are fixedly mounted between the two supporting rods, the tops of the two supporting rods are movably connected with the bottom end face of the buffer plate through a rotating shaft.

In order to enable the two first springs to play a role in buffering vibration, the silencer for the blower is preferably used, the two first springs are movably sleeved on the outer side wall of the fixed rod, and the two first springs are respectively located on the side, far away from the two sliding blocks relatively.

In order to reflect the noise generated by the blower body and collide with other noise to perform reactive noise reduction, it is preferable that the noise reduction cover is an arc-shaped aluminum metal material.

In order to facilitate the introduction of the external air into the blower body, it is preferable that the muffler device for a blower according to the present invention is configured such that the front end surface of the blower body is communicated with an air inlet tube, and the other end of the air inlet tube sequentially penetrates the front end surface of the installation box and the front end surface of the soundproof box and extends to the outside of the soundproof box.

In order to facilitate the blower body to compress and discharge external air, it is preferable that the blower body has a rear end surface communicating with an air outlet cylinder, and the other end of the air outlet cylinder penetrates through the rear end surface of the installation box and the rear end surface of the soundproof box in this order and extends to the outside of the soundproof box.

In order to absorb noise in the soundproof case, it is preferable that the soundproof case is filled with soundproof cotton in an inner wall thereof.

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

1. the silencer for the blower is characterized in that the blower body is arranged in the mounting box, when the blower body is started to work, noise generated by the blower body is transmitted in the mounting box, when sound waves are transmitted to the inside of the silencing cover, the silencing cover can reflect the noise generated by the blower body back to collide with the transmitted noise and other noises, resistance silencing is carried out, the noise reduction effect is achieved, sound waves transmitted into the sound insulation box are further absorbed through the concave-convex silencing boards and the silencing cotton, accordingly, the noise transmission of the blower is reduced, and other people are prevented from being interfered;

2. according to the silencer for the blower, the buffer board supporting and mounting box can move up and down through the two sliding grooves, and the first spring and the second spring are matched with each other, so that the supporting rod supporting the buffer board and the mounting box can buffer the vibration generated by the blower body, the vibration generated by the silencer box in the working process is reduced, the noise generated by other parts due to vibration is avoided, and the silencing effect is effectively improved;

to sum up, this kind of silencing device for air-blower can go back the noise reflection that the air-blower body produced through the amortization cover, collide with noise and other noises that the transmission was come, carry out the resistance amortization, play the effect of making an uproar to fall, and will transmit the sound wave to the sound-proof box in through the acoustical panel of concavo-convex form and amortization cotton and further absorption of going forward, thereby reduce the propagation of air-blower noise, avoid other personnel to receive the interference, through mutually supporting of first spring and second spring, the vibrations that reducible sound-proof box produced in the course of the work, avoid other parts to produce the noise because of vibrations, the effectual effect that improves the amortization.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a structural view of a silencer for a blower according to the present invention;

FIG. 2 is a cross-sectional view of a blower noise reducing device in accordance with the present invention;

FIG. 3 is a cross-sectional view of a stretched tape of the utility model.

In the figure, 1, a soundproof box; 2. installing a box; 201. a sound deadening hood; 3. a blower body; 301. an air inlet cylinder; 302. an air outlet cylinder; 4. a buffer plate; 5. a fixing frame; 501. a chute; 6. fixing the rod; 601. a slider; 6011. a first spring; 602. a support bar; 603. a second spring; 7. an acoustical panel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-3, the present invention provides the following technical solutions: a silencing device for a blower comprises a sound insulation box 1, wherein a concave-convex silencing plate 7 is fixedly arranged on the inner side wall of the sound insulation box 1, an installation box 2 is arranged in the sound insulation box 1, the left end surface, the right end surface and the upper end surface of the installation box 2 are respectively communicated with a silencing cover 201, a blower body 3 is fixedly arranged on the inner bottom end surface of the installation box 2, a buffer plate 4 is fixedly arranged on the bottom end surface of the installation box 2, a fixing frame 5 in a U shape is arranged on the outer side wall of the buffer plate 4, sliding grooves 501 are respectively arranged at the upper ends of the left side wall and the right side wall in the fixing frame 5, the two sliding grooves 501 are respectively in sliding connection with the left end and the right end surfaces of the buffer plate 4, two fixing rods 6 distributed front and back are arranged below the buffer plate 4, two sliding blocks 601 distributed left and right are movably sleeved on the outer side wall of the fixing rods 6, supporting rods 602 are respectively and movably connected through rotating shafts, and second springs 603 are respectively fixedly arranged between the two supporting rods 602, the tops of the two support rods 602 are movably connected with the bottom end surface of the buffer plate 4 through a rotating shaft.

In this embodiment: when the blower body 3 works, noise generated by the blower body 3 is transmitted in the mounting box 2, when the sound wave is transmitted to the inside of the silencing cover 201, the silencing cover 201 can reflect the noise generated by the blower body 3 back to collide with the transmitted noise and other noises, and perform resistance silencing to achieve the effect of noise reduction, and the sound wave transmitted to the inside of the sound insulation box 1 is further absorbed through the concave-convex silencing plate 7, so that the transmission of the blower noise is reduced, other people are prevented from being interfered, the mounting box 2 can be supported by the buffer plate 4 to move up and down through the two sliding grooves 501, and the buffer plate 4 is supported by the support rod 602 and the mounting box 2 to buffer the vibration generated by the blower body 3 through the mutual matching of the first spring 6011 and the second spring 603, so that the vibration generated by the sound insulation box in the working process is reduced, avoid other parts to produce the noise because of vibrations, the effectual effect that improves the amortization.

As a technical optimization scheme of the present invention, two first springs 6011 are movably sleeved on an outer side wall of the fixing rod 6, and the two first springs 6011 are respectively located on a side of the two sliders 601 relatively far away from each other.

In this embodiment: through setting up two first springs 6011, when the buffer board 4 receives vibrations, push down two bracing pieces 602, make two bracing pieces 602 rotate and extrude two sliders 601 respectively to make two sliders 601 compress two first springs 6011, two first springs 6011 can play the effect of buffering vibrations.

As a technical optimization scheme of the present invention, the muffling cover 201 is arc-shaped and made of aluminum metal.

In this embodiment: through setting up amortization cover 201 and be the arc form and be aluminium metal material, can go back the noise reflection that air-blower body 3 produced, bump with other noises, carry out the resistance amortization.

As a technical optimization scheme of the utility model, the front end surface of the blower body 3 is communicated with an air inlet drum 301, and the other end of the air inlet drum 301 sequentially penetrates through the front end surface of the installation box 2 and the front end surface of the sound insulation box 1 and extends to the outside of the sound insulation box 1.

In this embodiment: through setting up an air inlet section of thick bamboo 301, be convenient for let in the air of outside to blower body 3 in for blower body 3 inhales outside air and compresses.

As a technical optimization scheme of the present invention, the rear end surface of the blower body 3 is communicated with the air outlet cylinder 302, and the other end of the air outlet cylinder 302 sequentially penetrates through the rear end surface of the installation box 2 and the rear end surface of the soundproof box 1 and extends to the outside of the soundproof box 1.

In this embodiment: by providing the air outlet barrel 302, the blower body 3 is convenient to compress external air and then discharge the compressed air.

As a technical optimization scheme of the utility model, the inner side wall of the soundproof box 1 is filled with soundproof cotton.

In this embodiment: through setting up soundproof cotton, be convenient for absorb the noise in the soundproof box 1.

The working principle and the using process of the utility model are as follows: firstly, the blower body 3 is installed in the installation box 2, when the blower body 3 is started to work, the blower body 3 can compress the outside air through the air inlet drum 301 and then discharge the air through the air outlet drum 302, the noise generated by the blower body 3 is propagated in the installation box 2, when the sound wave is transmitted to the inside of the silencing cover 201, the silencing cover 201 can reflect the noise generated by the blower body 3 back to collide with the transmitted noise and other noises for carrying out resistance silencing to play a role in noise reduction, and the sound wave transmitted to the inside of the sound insulation box 1 is further absorbed through the concave-convex silencing plate 7 and the silencing cotton, thereby reducing the propagation of the noise of the blower and avoiding other persons from receiving interference, the buffer plate 4 can support the installation box 2 to move up and down through the two chutes 501, and the first spring 6011 and the second spring 603 are mutually matched, make bracing piece 602 support buffer board 4 and install bin 2 and cushion the vibrations that air-blower body 3 produced to reduce the vibrations that the whistle box produced in the course of the work, avoid other parts to produce the noise because of vibrations, the effectual effect that improves the amortization.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A silencing device for a blower includes a sound insulation box (1), and is characterized in that: the sound insulation box is characterized in that a concave-convex sound insulation plate (7) is fixedly mounted on the inner side wall of the sound insulation box (1), an installation box (2) is arranged inside the sound insulation box (1), the left end face, the right end face and the upper end face of the installation box (2) are both communicated with a sound insulation cover (201), an air blower body (3) is fixedly mounted on the inner bottom end face of the installation box (2), a buffer plate (4) is fixedly mounted on the bottom end face of the installation box (2), a U-shaped fixed frame (5) is arranged on the outer side wall of the buffer plate (4), sliding grooves (501) are formed in the upper ends of the left side wall and the right side wall of the fixed frame (5), the two sliding grooves (501) are respectively in sliding connection with the left end and the right end of the buffer plate (4), two fixing rods (6) distributed front and back are arranged below the buffer plate (4), and two sliding blocks (601) distributed left and right are movably sleeved on the outer side wall of the fixing rods (6), the upper end face of two slider (601) all has bracing piece (602) through pivot swing joint, two equal fixed mounting has second spring (603) between bracing piece (602), two the top of bracing piece (602) all is through pivot and buffer board (4) bottom face swing joint.

2. The silencer assembly for a blower according to claim 1, wherein: two first springs (6011) are movably sleeved on the outer side wall of the fixed rod (6), and the two first springs (6011) are respectively located on one side, far away from the two sliding blocks (601), relatively.

3. The silencer assembly for a blower according to claim 1, wherein: the silencing cover (201) is arc-shaped and is made of aluminum metal materials.

4. The silencer assembly for a blower according to claim 1, wherein: the preceding terminal surface intercommunication of air-blower body (3) has an air inlet section of thick bamboo (301), the other end of an air inlet section of thick bamboo (301) runs through the preceding terminal surface of installation box (2) and the preceding terminal surface of sound-proof box (1) in proper order and extends to the outside of sound-proof box (1).

5. The silencer assembly for a blower according to claim 1, wherein: the rear end face intercommunication of air-blower body (3) has exhaust stack (302), the other end of exhaust stack (302) runs through the rear end face of install bin (2) and the rear end face of sound-proof box (1) in proper order and extends to the outside of sound-proof box (1).

6. The silencer assembly for a blower according to claim 1, wherein: the inner side wall of the soundproof box (1) is filled with soundproof cotton.