CN215409278U

CN215409278U - Noise-reduction centrifugal blower

Info

Publication number: CN215409278U
Application number: CN202121875775.5U
Authority: CN
Inventors: 黄国强
Original assignee: Jiangsu Hopes Environmental Protection Technology Co ltd
Current assignee: Jiangsu Hopes Environmental Protection Technology Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-01-04
Anticipated expiration: 2031-08-12

Abstract

The utility model discloses a noise-reduction centrifugal blower which comprises a base, a supporting plate, a blower body, a buffering assembly, a damping assembly, an arc-shaped support, a through hole, a fixing rod, a buffering spring, sound-absorbing cotton and a threaded rod. According to the utility model, the damping component is arranged between the base and the supporting plate, so that the air blower can be protected, and meanwhile, the noise can be reduced.

Description

Noise-reduction centrifugal blower

Technical Field

The utility model relates to the technical field of blowers, in particular to a noise-reducing centrifugal blower.

Background

The noise is the sound randomly emitted by the sounding body, and is caused by the vibration of the object and propagates in a certain medium, such as solid, liquid and gas, in the form of waves. Noise pollution is commonly referred to as being artificially created. From a physiological point of view, all sounds that interfere with people's rest, learning, and work, i.e., unwanted sounds, are collectively referred to as noise. Industrial noise is noise generated by various devices of a plant. The sound level of industrial noise is generally high, and has a great influence on workers and surrounding residents.

The existing air blower is easy to generate noise due to the impact of internal air flow in the using process, the existing air blower can drive the air blower to shake due to the operation of a motor in the working process, the noise is easy to generate, the noise reduction capability and the shock absorption capability of the existing air blower are poor, the number of noise sources is large, and the working environment of workers is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a noise reduction centrifugal blower to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a noise-reduction centrifugal blower comprises a base, a supporting plate, a blower body, a buffering assembly, a damping assembly, arc-shaped supports, through holes, fixing rods, a buffering spring, sound-absorbing cotton and a threaded rod, wherein the supporting plate is arranged above the base, the blower body is arranged above the supporting plate, the buffering assembly is arranged between two sides of the supporting plate and two sides of the upper surface of the base, the damping assembly is arranged between the middle part of the lower part of the supporting plate and the middle part of the upper surface of the base, the arc-shaped supports are arranged at two ends above the blower body, the through holes are arranged at one side of the supporting plate, the lower ends of the threaded rod penetrate through the through holes and are rotationally fixed on the supporting plate, the top end of the threaded rod is connected with the lower part of one end of each arc-shaped support, the fixing rod is arranged below the other end of each arc-shaped support, the other end of the fixing rod, which is far away from each arc-shaped support, is fixedly arranged at the other side of the supporting plate, the inside cavity of arc support, the inside of arc support is equipped with multiunit buffer spring, the inboard of arc support covers there is the sound of inhaling cotton.

Preferably, the buffering component comprises a foam block and a pressure spring, the foam block is of a strip-shaped structure, the foam block is fixed between the base and the supporting plate, the pressure spring is arranged between every two adjacent foam blocks, and the two ends of the pressure spring are fixed with the base and the supporting plate.

Preferably, damping component includes spout, first fixed block, second fixed block, slide bar, first damping spring, movable rod, connecting block and second damping spring.

Preferably, the spout inlays to be located inside the bottom both sides of backup pad, the bottom middle part left and right sides of backup pad is located to first fixed block, the top middle part left and right sides of base is located to the second fixed block, first fixed block correspond spout fixed connection and communicate with the spout, be equipped with the slide bar between first fixed block and the second fixed block, the upper end of slide bar is run through first fixed block and stretch into in the spout, the lower extreme and the second fixed block of slide bar are connected, the cover is equipped with first damping spring on the slide bar, the inboard of first fixed block and second fixed block all articulates there is the movable rod, it has the connecting block to articulate between the movable rod, be equipped with second damping spring between the connecting block.

Preferably, the top of the inside of the chute is provided with a cushion pad.

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

according to the utility model, the damping assembly is arranged between the base and the support plate, when the blower main body vibrates, the first fixed block and the second fixed block are close to each other in the process that the support plate moves downwards, so that the distance between the movable rods is close to each other, the first damping spring is contracted to buffer transverse vibration force, meanwhile, the slide rod is extruded into the chute, and the second damping spring on the slide rod is contracted to further buffer longitudinal vibration force, so that the blower can be protected, the service life of the blower is prolonged, and meanwhile, the generation of noise can be reduced; meanwhile, a buffer assembly is arranged, a foam block and a pressure spring in the buffer assembly enable the air blower to perform primary shock absorption under the elastic action of the pressure spring when the air blower is used, and further shock absorption is performed under the action of the foam block, so that the air blower has shock absorption and noise reduction performances through a dual shock absorption structure; simultaneously, through setting up the arc support, can be according to the size of air-blower, the degree of depth in the control threaded rod inserts the through-hole changes the scope that the arc support wrapped up the air-blower, and the sound cotton is inhaled through a plurality of buffer spring in the arc support and the inboard sound of inhaling of arc support simultaneously, further plays and inhales the absorbing function.

Drawings

FIG. 1 is a front view of a noise reducing centrifugal blower;

FIG. 2 is a side view of a noise reducing centrifugal blower;

FIG. 3 is a view of the structure of the arc bracket;

fig. 4 is a view showing the structure of a shock-absorbing member.

In the figure: 1-a base; 2-a support plate; 3-a blower body; 4-a buffer component; 5-a shock-absorbing component; 6-arc support; 7-a through hole; 8-fixing the rod; 9-a buffer spring; 10-sound absorbing cotton; 11-a threaded rod; 401-foam block; 402-a pressure spring; 501-a chute; 502-first fixed block; 503-a second fixed block; 504-a slide bar; 505-a first damping spring; 506-a movable rod; 507-connecting blocks; 508-a second damping spring; 509-cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a noise-reduction centrifugal blower comprises a base 1, a supporting plate 2, a blower body 3, a buffer assembly 4, a shock-absorbing assembly 5, an arc-shaped support 6, a through hole 7, a fixing rod 8, a buffer spring 9, sound-absorbing cotton 10 and a threaded rod 11, wherein the supporting plate 2 is arranged above the base 1, the blower body 3 is arranged above the supporting plate 2, the buffer assembly 4 is arranged between two sides of the supporting plate 2 and two sides of the upper surface of the base 1, the buffer assembly 4 comprises a foam block 401 and a pressure spring 402, the foam block 401 is of a strip-shaped structure and is fixed between the base 1 and the supporting plate 2, the pressure spring 402 is arranged between two adjacent foam blocks 401, two ends of the pressure spring 402 are fixed with the base 1 and the supporting plate 2, and by arranging the buffer assembly 4, the foam block 401 and the pressure spring 402 in the buffer assembly 4 enable the blower to be primarily damped under the elastic action of the pressure spring 402 when in use, the damping component 5 is arranged between the middle part below the supporting plate 2 and the middle part of the upper surface of the base 1, the damping component 5 comprises a sliding groove 501, a first fixing block 502, a second fixing block 503, a sliding rod 504, a first damping spring 505, a movable rod 506, a connecting block 507 and a second damping spring 508, the sliding groove 501 is embedded in the two sides of the bottom of the supporting plate 2, the first fixing block 502 is arranged on the left side and the right side of the middle part of the bottom of the supporting plate 2, the second fixing block 503 is arranged on the left side and the right side of the middle part of the top of the base 1, the first fixing block 502 is fixedly connected with the sliding groove 501 and communicated with the sliding groove 501 corresponding to the sliding groove 501, the sliding rod 504 is arranged between the first fixing block 502 and the second fixing block 503, the upper end of the sliding rod 504 penetrates through the first fixing block 502 and extends into the sliding groove 501, and the lower end of the sliding rod 504 is connected with the second fixing block 503, the sliding rod 504 is sleeved with a first damping spring 505, the inner sides of the first fixed block 502 and the second fixed block 503 are hinged with a movable rod 506, a connecting block 507 is hinged between the movable rods 506, a second damping spring 508 is arranged between the connecting blocks 507, a buffer cushion 509 is arranged at the top inside the sliding groove 501, by arranging the damping component 5 between the base 1 and the supporting plate 2, when the blower main body 3 vibrates, in the process that the supporting plate 2 moves downwards, the first fixed block 502 and the second fixed block 503 are close to each other, so that the distance between the movable rods 506 is close to each other, the first damping spring 505 contracts to buffer the transverse vibration force, meanwhile, the sliding rod 504 extrudes into the sliding groove, the second damping spring 508 on the sliding rod 504 contracts to further buffer the longitudinal vibration force, the effect of protecting the blower can be achieved, the service life of the blower is prolonged, meanwhile, the noise generation can be reduced, the arc-shaped brackets 6 are arranged at both ends above the blower main body 3, one side of backup pad 2 is equipped with through-hole 7, the lower extreme of threaded rod 11 passes through-hole 7 and rotates to be fixed in backup pad 2, the top of threaded rod 11 is connected with arc support 6's one end below, arc support 6's other end below is equipped with dead lever 8, the dead lever 8 is kept away from arc support 6's the fixed opposite side of locating backup pad 2 of the other end, arc support 6's inside cavity, arc support 6's inside is equipped with multiunit buffer spring 9, arc support 6's inboard is covered and is inhaled sound cotton 10, through setting up arc support 6, can be according to the size of air-blower, the degree of depth in the control threaded rod 11 inserts the through-hole, change arc support 6 to the scope that the air-blower wrapped up, simultaneously through a plurality of buffer spring 9 in arc support 6 and the inboard cotton 10 of inhaling of arc support 6, further play inhales the absorbing function.

Application method

When the air blower is used, the damping component 5 is arranged between the base 1 and the supporting plate 2, when the air blower main body 3 vibrates, in the process that the supporting plate 2 moves downwards, the first fixing block 502 and the second fixing block 503 are close to each other, so that the distance between the movable rods 506 is close to each other, the first damping spring 505 contracts to buffer transverse vibration force, meanwhile, the sliding rod 504 extrudes into the sliding groove, the second damping spring 508 on the sliding rod 504 contracts to further buffer longitudinal vibration force, the air blower can be protected, the service life of the air blower is prolonged, noise can be reduced, the depth of the threaded rod 11 inserted into the through hole can be controlled by the arc-shaped support 6 according to the size of the air blower, the fixed position of the bottom of the threaded rod 11 can be rotated by the nut, the range of the arc-shaped support 6 for wrapping the air blower is changed, meanwhile, the plurality of damping springs 9 in the arc-shaped support 6 and the sound absorption cotton 10 on the inner side of the arc-shaped support 6 are used, further playing the function of sound absorption and shock absorption.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A noise-reducing centrifugal blower characterized in that: comprises a base (1), a support plate (2), an air blower body (3), a buffering component (4), a damping component (5), an arc-shaped support (6), a through hole (7), a fixed rod (8), a buffering spring (9), sound-absorbing cotton (10) and a threaded rod (11), wherein the support plate (2) is arranged above the base (1), the air blower body (3) is arranged above the support plate (2), the buffering component (4) is arranged between two sides of the support plate (2) and two sides of the upper surface of the base (1), the damping component (5) is arranged between the middle part below the support plate (2) and the middle part of the upper surface of the base (1), the arc-shaped support (6) is arranged at two ends above the air blower body (3), the through hole (7) is arranged at one side of the support plate (2), and the lower end of the threaded rod (11) passes through the through hole (7) and is rotationally fixed on the support plate (2), the top of threaded rod (11) is connected with the one end below of arc support (6), the other end below of arc support (6) is equipped with dead lever (8), the other end that arc support (6) were kept away from in dead lever (8) is fixed locates the opposite side of backup pad (2), the inside cavity of arc support (6), the inside of arc support (6) is equipped with multiunit buffer spring (9), the inboard of arc support (6) covers and has sound absorption cotton (10).

2. The noise reducing centrifugal blower of claim 1, wherein: buffer unit (4) are including foam block (401) and pressure spring (402), foam block (401) are bar structure, foam block (401) are fixed between base (1) and backup pad (2), are equipped with pressure spring (402) between two adjacent foam blocks (401), the both ends and base (1) and backup pad (2) of pressure spring (402) are fixed mutually.

3. The noise reducing centrifugal blower of claim 1, wherein: the damping assembly (5) comprises a sliding groove (501), a first fixing block (502), a second fixing block (503), a sliding rod (504), a first damping spring (505), a movable rod (506), a connecting block (507) and a second damping spring (508).

4. A noise reducing centrifugal blower according to claim 3, wherein: the utility model discloses a damping device of a motor vehicle, including a supporting plate (2), spout (501) are embedded inside the bottom both sides of supporting plate (2), the bottom middle part left and right sides of supporting plate (2) is located in first fixed block (502), the top middle part left and right sides of base (1) is located in second fixed block (503), first fixed block (502) correspond spout (501) fixed connection and communicate with spout (501), be equipped with slide bar (504) between first fixed block (502) and second fixed block (503), the upper end of slide bar (504) is run through first fixed block (502) and is stretched into in spout (501), the lower extreme and the second fixed block (503) of slide bar (504) are connected, the cover is equipped with first damping spring (505) on slide bar (504), the inboard of first fixed block (502) and second fixed block (503) all articulates there is movable rod (506), it has connecting block (507) to articulate between movable rod (506), and a second damping spring (508) is arranged between the connecting blocks (507).

5. The noise reducing centrifugal blower of claim 4, wherein: a buffer pad (509) is arranged at the top of the inner part of the sliding chute (501).