CN219472427U

CN219472427U - Noise reduction device for fan

Info

Publication number: CN219472427U
Application number: CN202320435594.3U
Authority: CN
Inventors: 李栋梁; 曹新宇; 杨大卫
Original assignee: Henan Chenfan Electromechanical Environmental Protection Equipment Co ltd
Current assignee: Henan Chenfan Electromechanical Environmental Protection Equipment Co ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-08-04
Anticipated expiration: 2033-03-09

Abstract

The utility model discloses a fan silencing and noise reducing device, which relates to the technical field of fan noise reducing equipment and comprises a box body, wherein first silencing cotton is adhered to the inner wall of the box body, a damping hinge is arranged at the bottom end of the interior of the box body, a supporting plate is connected to the top end of the damping hinge, a supporting plate is arranged at the top end of the supporting plate, springs are arranged on two sides of the bottom of the supporting plate, a fan body is arranged above the supporting plate, a screw is arranged between the fan body and the supporting plate, an air outlet pipe is arranged on the left side of the top of the fan body, and an expansion pipe is connected to the top end of the air outlet pipe. In the utility model, as the fan body can shake in the working process, the supporting plate can swing left and right, the supporting plate can be supported by the springs, when the supporting plate swings left and right, the damping of the rotation of the damping hinge and the elasticity of the springs can be utilized to buffer the supporting plate, the fan body is not directly contacted with the box body, the box body does not vibrate, and the noise generated by vibration can be reduced.

Description

Noise reduction device for fan

Technical Field

The utility model relates to the technical field of fan noise reduction equipment, in particular to a fan noise reduction device.

Background

The fan is a mechanical energy which is input, improves the pressure of gas and discharges the gas, is a driven fluid machine, is a habit short for gas compression and gas conveying machinery in China, and is commonly referred to as a fan, a blower and a wind driven generator, and is widely used for ventilation, dust discharge and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air induction of boilers and industrial kilns, and cooling and ventilation in air conditioning equipment and household electrical appliances; the grain drying and selecting, the wind tunnel wind source and the inflatable and propelling fan type of the air cushion ship are various, but can generate great noise to influence the physical and mental health of people, and in addition, part of the noise of the fan is generated due to vibration.

When current fan needs amortization to fall the noise, place it in the box that has the amortization cotton inside generally, this kind of mode makes the fan direct with the box contact, the box can vibrate, can not weaken the noise that produces when vibrations.

Disclosure of Invention

The utility model aims to provide a fan silencing and noise reducing device which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a fan noise reduction device, comprising:

the box, the inner wall bonding of box has first amortization cotton, the damping hinge is installed to the inside bottom of box, and the top of damping hinge is connected with the backup pad, the layer board is installed on the top of backup pad, and the bottom both sides of layer board install the spring, the fan body has been placed to the top of layer board, and installs the screw between fan body and the layer board, the top left side of fan body is provided with out the tuber pipe, and goes out the top of tuber pipe and be connected with flexible pipe.

Preferably, a sealing box door is arranged below the front face of the box body, second silencing cotton is arranged in the telescopic pipe, a connecting pipe is arranged at the top end of the telescopic pipe, and third silencing cotton is arranged in the connecting pipe.

Preferably, a detachable structure is formed between the fan body and the supporting plate through screws, and the supporting plate is vertically welded with the supporting plate.

Preferably, the supporting plate and the box body are rotatably connected through a damping hinge, and an elastic structure is formed between the supporting plate and the box body through a spring.

Preferably, the connecting pipe and the fan body form a communication state through the telescopic pipe and the air outlet pipe, and a telescopic structure is formed between the connecting pipe and the air outlet pipe through the telescopic pipe.

Preferably, the third silencing cotton is adhered to the inside of the connecting pipe in a hollow tubular shape, and the outer wall of the third silencing cotton is attached to the inner wall of the connecting pipe.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. in the utility model, as the fan body can shake in the working process, the supporting plate can swing left and right, the supporting plate can be supported by the springs, when the supporting plate swings left and right, the damping of the rotation of the damping hinge and the elasticity of the springs can be utilized to buffer the supporting plate, the fan body is not directly contacted with the box body, the box body does not vibrate, and the noise generated by vibration can be reduced.

2. According to the utility model, the interior of the box body is silenced through the first silencing cotton, the interior of the telescopic pipe is silenced through the second silencing cotton, the air flow in the connecting pipe is silenced through the third silencing cotton, and the multi-section silencing and noise reducing effects are good.

Drawings

FIG. 1 is a schematic view of the internal structure of a case according to the present utility model;

FIG. 2 is a schematic view of the external structure of the case according to the present utility model;

FIG. 3 is a schematic view showing the internal structure of the telescopic tube and the connecting tube according to the present utility model.

Legend description:

1. a connecting pipe; 2. a case; 3. a first noise-reducing cotton; 4. a fan body; 5. a screw; 6. damping hinges; 7. a support plate; 8. a spring; 9. a supporting plate; 10. an air outlet pipe; 11. a telescopic tube; 12. sealing the box door; 13. a second noise reduction cotton; 14. and a third noise reduction cotton.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, a fan silencing and noise reducing device comprises a box body 2, wherein first silencing cotton 3 is adhered to the inner wall of the box body 2, a damping hinge 6 is arranged at the bottom end of the interior of the box body 2, a supporting plate 7 is connected to the top end of the damping hinge 6, a supporting plate 9 is arranged at the top end of the supporting plate 7, springs 8 are arranged on two sides of the bottom of the supporting plate 9, the supporting plate 9 and the box body 2 are in rotary connection through the damping hinge 6, an elastic structure is formed between the supporting plate 9 and the box body 2 through the springs 8, the supporting plate 9 can swing left and right around the damping hinge 6, the supporting plate 9 can be supported through the springs 8, and when the supporting plate 9 swings left and right, the damping of the rotation of the damping hinge 6 and the elastic force of the springs 8 can be utilized to buffer the damping hinge 6;

the fan body 4 is arranged above the supporting plate 9, the screw 5 is arranged between the fan body 4 and the supporting plate 9, a detachable structure is formed between the fan body 4 and the supporting plate 9 through the screw 5, the bottom of the fan body 4 is connected with the top of the supporting plate 9 through the screw 5 in a vertical welding manner, the installation and the detachment are convenient, the supporting plate 9 is supported through the supporting plate 7, the welding ensures the tightness of the connection between the supporting plate 9 and the supporting plate 7, the air outlet pipe 10 is arranged on the left side of the top of the fan body 4, and the top end of the air outlet pipe 10 is connected with the telescopic pipe 11;

the sealed chamber door 12 is installed to the front below of box 2, the inside of flexible pipe 11 is provided with second amortization cotton 13, third amortization cotton 14 is hollow tubulose bonding in the inside of connecting pipe 1, and the outer wall of third amortization cotton 14 is laminated with the inner wall of connecting pipe 1 mutually, through the third amortization cotton 14 at the inner wall bonding hollow tubulose structure of connecting pipe 1, can utilize the air current that third amortization cotton 14 flows to connecting pipe 1 inside to play the effect of sound insulation amortization, connecting pipe 1 is installed on the top of flexible pipe 11, and the inside of connecting pipe 1 is provided with third amortization cotton 14, form communicating state through flexible pipe 11 and play tuber pipe 10 between connecting pipe 1 and the fan body 4, and constitute the extending structure through flexible pipe 11 between connecting pipe 1 and the tuber pipe 10, the fan body 4 during operation can be through going out tuber pipe 10 and flexible pipe 11 with the air current transmission to the inside of connecting pipe 1, finally discharge, link together connecting pipe 1 and play tuber pipe 10 and the distance between the connecting pipe 1 through flexible pipe 11, thereby guarantee can not cause the motion to the left and right rocking of fan body 4.

Working principle: external air enters the box body 2 through a hole (shown in the figure but not marked) at the bottom of the box body 2, the fan body 4 is started, when the fan body 4 works, air flow can be transmitted to the inside of the connecting pipe 1 through the air outlet pipe 10 and the telescopic pipe 11, and finally the air flow is discharged, as the fan body 4 can shake in the working process, the supporting plate 9 can swing left and right, the supporting plate 9 can be supported through the spring 8, when the supporting plate 9 swings left and right, the damping hinge 6 can be utilized to damp and the elastic force of the spring 8 to buffer the supporting plate, the inside of the box body 2 is silenced through the first silencing cotton 3, the inside of the telescopic pipe 11 is silenced through the second silencing cotton 13, the air flow inside the connecting pipe 1 is silenced through the third silencing cotton 14, the multi-section silencing, the silencing effect is good, the specific specification of the fan body 4 is required to be determined according to the actual specification and the like of the device, the specific type selecting calculation method adopts the prior art, and therefore the detailed description is omitted, and the power supply principle of the fan body 4 is not clear.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a fan amortization noise reduction device which characterized in that includes:

the box (2), the inner wall bonding of box (2) has first amortization cotton (3), damping hinge (6) are installed to the inside bottom of box (2), and the top of damping hinge (6) is connected with backup pad (7), layer board (9) are installed on the top of backup pad (7), and spring (8) are installed to the bottom both sides of layer board (9), fan body (4) have been placed to the top of layer board (9), and install screw (5) between fan body (4) and layer board (9), the top left side of fan body (4) is provided with out tuber pipe (10), and the top of going out tuber pipe (10) is connected with flexible pipe (11).

2. The fan silencing and noise reducing device according to claim 1, wherein: the novel telescopic box is characterized in that a sealing box door (12) is arranged below the front face of the box body (2), second silencing cotton (13) is arranged in the telescopic pipe (11), a connecting pipe (1) is arranged at the top end of the telescopic pipe (11), and third silencing cotton (14) is arranged in the connecting pipe (1).

3. The fan silencing and noise reducing device according to claim 1, wherein: a detachable structure is formed between the fan body (4) and the supporting plate (9) through the screw (5), and the supporting plate (9) and the supporting plate (7) are vertically welded.

4. The fan silencing and noise reducing device according to claim 1, wherein: the supporting plate (9) is rotatably connected with the box body (2) through a damping hinge (6), and an elastic structure is formed between the supporting plate (9) and the box body (2) through a spring (8).

5. The fan silencing and noise reducing device according to claim 2, wherein: the connecting pipe (1) and the fan body (4) form a communicating state through the telescopic pipe (11) and the air outlet pipe (10), and a telescopic structure is formed between the connecting pipe (1) and the air outlet pipe (10) through the telescopic pipe (11).

6. The fan silencing and noise reducing device according to claim 2, wherein: the third silencing cotton (14) is adhered to the inside of the connecting pipe (1) in a hollow tubular shape, and the outer wall of the third silencing cotton (14) is attached to the inner wall of the connecting pipe (1).