CN216895084U

CN216895084U - Centrifugal fan with sound insulation and noise reduction structure

Info

Publication number: CN216895084U
Application number: CN202123322774.0U
Authority: CN
Inventors: 袁欢; 刘争; 王迪; 缪嘉铭; 张根根
Original assignee: Wuxi Jingen Fan Co ltd
Current assignee: Wuxi Jingen Fan Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-07-05
Anticipated expiration: 2031-12-27

Abstract

The utility model relates to the technical field of noise reduction of centrifugal fans, and particularly discloses a centrifugal fan with a sound-insulation noise-reduction structure, which comprises: the noise reduction device comprises a centrifugal fan main body, wherein the upper end of the centrifugal fan main body is connected with a noise reduction air pipe, one end of the noise reduction air pipe is provided with a rubber sealing ring, one side of the noise reduction air pipe is provided with a clamping hook, the other side of the noise reduction air pipe is provided with four groups of clamping tongue supports, a clamping tongue is arranged between every two groups of clamping tongue supports, and a spring is connected between the clamping tongue and the surface of the noise reduction air pipe; the beneficial effects are that: according to the centrifugal fan with the sound insulation and noise reduction structure, the clamping tongue structure is added, when the noise reduction air pipe is installed, only the clamping hook needs to be scraped at one side of the air outlet of the centrifugal fan, then the noise reduction air pipe is pressed to clamp the clamping tongue to the bulge of the air outlet, when the noise reduction air pipe is disassembled, only the rear end of the clamping tongue needs to be pressed, the limiting block of the clamping tongue is separated from the air outlet, and the noise reduction air pipe can be disassembled, so that the disassembling and assembling efficiency of the noise reduction air pipe is improved to a great extent.

Description

Centrifugal fan with sound insulation and noise reduction structure

Technical Field

The utility model relates to the technical field of noise reduction of centrifugal fans, in particular to a centrifugal fan with a sound insulation and noise reduction structure.

Background

The centrifugal fan is a machine which relies on input mechanical energy to improve gas pressure and discharge gas, and is a driven fluid machine, and the centrifugal fan is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and draught of boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household electrical equipment, drying and selective feeding of grains, inflation and propulsion of wind tunnel wind sources and air cushion ships and the like, and has the defect of higher noise during working, so a sound insulation and noise reduction structure of the centrifugal fan is needed;

the centrifugal fan who has the structure of making an uproar falls in current gives sound insulation and mostly adds at the centrifugal fan inner wall and establishes syllable-dividing material, installs the tuber pipe of making an uproar that falls additional at the air outlet, but the tuber pipe of making an uproar falls at present mostly all through bolted connection, makes the difficult change of tuber pipe of making an uproar and wash.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a centrifugal fan with a sound-insulation and noise-reduction structure, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a centrifugal fan with a sound-insulating and noise-reducing structure, comprising:

the centrifugal fan comprises a centrifugal fan main body, wherein the upper end of the centrifugal fan main body is connected with a noise reduction air pipe, one end of the noise reduction air pipe is provided with a rubber sealing ring, and one side of the noise reduction air pipe is provided with a clamping hook;

the other side of the noise reduction air pipe is provided with four groups of tongue clamping brackets;

a clamping tongue is arranged between every two groups of clamping tongue brackets, and a spring is connected between the clamping tongue and the surface of the noise reduction air pipe.

Preferably, the clamping hook is in a structure of 'Contraband' formed by connecting three plates, and the clamping hook and the noise reduction air pipe are in an integral structure.

Preferably, the tongue clamping support is of a cuboid plate-shaped structure, the top end of the tongue clamping support is designed to be an arc surface, and a connecting hole is formed in the surface of the tongue clamping support.

Preferably, the clamping tongue is of a cambered surface cuboid plate-shaped structure, one end of the clamping tongue is provided with a limiting block, the limiting block is of a trapezoidal plate-shaped structure, the limiting block and the clamping tongue are of an integral structure, a supporting block is arranged on the surface of the clamping tongue, a square groove is formed in the surface of the clamping tongue, and a connecting rod is fixedly mounted on the inner wall of the square groove.

Preferably, the supporting block is of a cuboid plate-shaped structure, the supporting block and the clamping tongue are of an integral structure, a through hole is formed in the surface of the supporting block, and a rotating shaft is inserted into the through hole.

Preferably, the rotating shaft is of a cylindrical structure, and the rotating shaft penetrates through the connecting hole and the through hole to enable the clamping tongue support to be rotatably connected with the clamping tongue.

Preferably, the spring is torsion spring, and the both ends of spring all are provided with open-loop configuration, and the one end of spring cup joints and forms to rotate with the block tongue at the surface of connecting rod and is connected, and the other end of spring cup joints and falls the spliced pole surface on the tuber pipe surface of making an uproar and fall the tuber pipe formation rotation of making an uproar and be connected.

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

1. according to the centrifugal fan with the sound insulation and noise reduction structure, the clamping tongue structure is added, when the noise reduction air pipe is installed, only the clamping hook needs to be scraped at one side of the air outlet of the centrifugal fan, then the noise reduction air pipe is pressed to clamp the clamping tongue to the bulge of the air outlet, when the noise reduction air pipe is disassembled, only the rear end of the clamping tongue needs to be pressed, the limiting block of the clamping tongue is separated from the air outlet, and the noise reduction air pipe can be disassembled, so that the disassembling and assembling efficiency of the noise reduction air pipe is improved to a great extent;

2. according to the centrifugal fan with the sound insulation and noise reduction structure, the rubber sealing ring is added, after the noise reduction air pipe is clamped at the air outlet of the centrifugal fan, the elastic force of the rubber sealing ring enables the noise reduction air pipe to be tightly connected with the air outlet, and meanwhile, the sealing effect of a pipeline is achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view of a noise reduction duct according to the present invention;

FIG. 5 is a schematic view of a latch according to the present invention.

In the figure: the device comprises a centrifugal fan main body 1, a noise reduction air pipe 2, a clamping hook 3, a clamping tongue 4, a limiting block 41, a supporting block 42, a square groove 43, a connecting rod 44, a through hole 45, a clamping tongue support 5, a connecting hole 51, a rotating shaft 52, a spring 6 and a rubber sealing ring 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a centrifugal fan with a sound-insulating and noise-reducing structure, the centrifugal fan with the sound-insulating and noise-reducing structure comprises:

the noise reduction device comprises a centrifugal fan main body 1, wherein the upper end of the centrifugal fan main body 1 is connected with a noise reduction air pipe 2, one end of the noise reduction air pipe 2 is provided with a rubber sealing ring 7, one side of the noise reduction air pipe 2 is provided with a clamping hook 3, the clamping hook 3 is an Contraband-shaped structure formed by connecting three plates, and the clamping hook 3 and the noise reduction air pipe 2 are of an integral structure;

the other side of the noise reduction air pipe 2 is provided with four groups of tongue clamping supports 5, each tongue clamping support 5 is of a cuboid plate-shaped structure, the top end of each tongue clamping support 5 is designed to be a cambered surface, and the surface of each tongue clamping support 5 is provided with a connecting hole 51;

a clamping tongue 4 is arranged between every two groups of clamping tongue supports 5, a spring 6 is connected between the clamping tongue 4 and the surface of the noise reduction air pipe 2, the clamping tongue 4 is of a cambered surface cuboid plate-shaped structure, one end of the clamping tongue 4 is provided with a limiting block 41, the limiting block 41 is of a trapezoid plate-shaped structure, the limiting block 41 and the clamping tongue 4 are of an integral structure, the surface of the clamping tongue 4 is provided with a supporting block 42, the surface of the clamping tongue 4 is provided with a square groove 43, the inner wall of the square groove 43 is fixedly provided with a connecting rod 44, the supporting block 42 is of a cuboid plate-shaped structure, the supporting block 42 and the clamping tongue 4 are of an integral structure, the surface of the supporting block 42 is provided with a through hole 45, a rotating shaft 52 is inserted inside the through hole 45, the rotating shaft 52 is of a cylindrical structure, the rotating shaft 52 penetrates through the connecting hole 51 and the through hole 45 to enable the clamping tongue supports 5 and the clamping tongue 4 to form rotating connection, the spring 6 is a torsion spring, and both ends of the spring 6 are provided with open-loop structures, one end of the spring 6 is sleeved on the surface of the connecting rod 44 to form a rotary connection with the clamping tongue 4, and the other end of the spring 6 is sleeved on the surface of the connecting column on the surface of the noise reduction air pipe 2 to form a rotary connection with the noise reduction air pipe 2.

The working principle is as follows: during the in-service use, refer to that figure 1 and figure 4 are shown, when the tuber pipe 2 of making an uproar falls in the installation, will fall the pothook 3 of making an uproar tuber pipe 2 one side of making an uproar and hang the arch on the air outlet surface of centrifugal fan main part 1 earlier, then press the opposite side of falling the tuber pipe 2 of making an uproar, make the air outlet contact of block tongue 4 and centrifugal fan main part 1, stopper 41 lifts up under the extrusion of air outlet, after stopper 41 passes through the arch of air outlet, stopper 41 playback under the effect of spring 6, will fall the tuber pipe 2 card of making an uproar on the air outlet surface of centrifugal fan main part 1, when dismantling and fall the tuber pipe 2 of making an uproar, through pressing the rear end control stopper 41 of block tongue 4 and lifting up, after stopper 41 breaks away from the air outlet of centrifugal fan main part 1, take off the pothook 3 of articulate in the air outlet department of centrifugal fan main part 1 and accomplish the dismantlement of making an uproar 2 of making an uproar.

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. The utility model provides a centrifugal fan with structure of making an uproar falls in giving sound insulation which characterized in that: the centrifugal fan with sound insulation and noise reduction structure comprises:

the noise reduction device comprises a centrifugal fan main body (1), wherein the upper end of the centrifugal fan main body (1) is connected with a noise reduction air pipe (2), one end of the noise reduction air pipe (2) is provided with a rubber sealing ring (7), and one side of the noise reduction air pipe (2) is provided with a clamping hook (3);

the other side of the noise reduction air pipe (2) is provided with four groups of tongue clamping brackets (5);

a clamping tongue (4) is arranged between every two groups of clamping tongue brackets (5), and a spring (6) is connected between the clamping tongue (4) and the surface of the noise reduction air pipe (2).

2. The centrifugal fan with the sound insulation and noise reduction structure according to claim 1, wherein: the clamping hook (3) is of an Contraband-shaped structure formed by connecting three plates, and the clamping hook (3) and the noise reduction air pipe (2) are of an integral structure.

3. The centrifugal fan with the sound insulation and noise reduction structure as claimed in claim 1, wherein: the clamping tongue support (5) is of a cuboid plate-shaped structure, the top end of the clamping tongue support (5) is designed to be an arc surface, and a connecting hole (51) is formed in the surface of the clamping tongue support (5).

4. The centrifugal fan with the sound insulation and noise reduction structure according to claim 1, wherein: the clamping tongue (4) is of a cambered surface cuboid plate-shaped structure, a limiting block (41) is arranged at one end of the clamping tongue (4), the limiting block (41) is of a trapezoidal plate-shaped structure, the limiting block (41) and the clamping tongue (4) are of an integral structure, a supporting block (42) is arranged on the surface of the clamping tongue (4), a square groove (43) is formed in the surface of the clamping tongue (4), and a connecting rod (44) is fixedly mounted on the inner wall of the square groove (43).

5. The centrifugal fan with the sound insulation and noise reduction structure according to claim 4, wherein: the supporting block (42) is of a cuboid plate-shaped structure, the supporting block (42) and the clamping tongue (4) are of an integral structure, a through hole (45) is formed in the surface of the supporting block (42), and a rotating shaft (52) is inserted into the through hole (45).

6. The centrifugal fan with the sound insulation and noise reduction structure according to claim 5, wherein: the rotating shaft (52) is of a cylindrical structure, and the rotating shaft (52) penetrates through the connecting hole (51) and the through hole (45) to enable the clamping tongue support (5) to be rotatably connected with the clamping tongue (4).

7. The centrifugal fan with the sound insulation and noise reduction structure according to claim 1, wherein: spring (6) are torsion spring, and the both ends of spring (6) all are provided with open loop configuration, and the one end of spring (6) is cup jointed on the surface of connecting rod (44) and is formed to rotate with block tongue (4) and be connected, and the other end of spring (6) cup joints on the spliced pole surface on the tuber pipe (2) surface of making an uproar and falls tuber pipe (2) formation rotation and be connected.