CN211650401U

CN211650401U - Mute noise-reduction smoke exhaust pipe

Info

Publication number: CN211650401U
Application number: CN202020289521.4U
Authority: CN
Inventors: 钱虹; 周玉峰
Original assignee: Shengzhou Yinbao Electric Appliance Co ltd
Current assignee: Shengzhou Yinbao Electric Appliance Co ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2020-10-09
Anticipated expiration: 2030-03-10

Abstract

The utility model discloses a smoke exhaust pipe, aiming at providing a silent noise reduction smoke exhaust pipe, which adopts the technical proposal that the smoke exhaust pipe comprises a pipe body and mounting seats arranged at the two ends of the pipe body, wherein a sound absorption shell is arranged outside the pipe body and is fixedly connected with the mounting seats, the sound absorption shell consists of a plurality of sound absorption plates, a plurality of sound absorption holes penetrating through the sound absorption plates are arranged on the sound absorption plates, a plurality of flow stabilizing plates are arranged in the sound absorption holes, the flow stabilizing plates are arc-shaped and arch up from the inlet of the sound absorption holes to the outlet, a sound absorption cavity is arranged in the sound absorption holes near the inlet, and a clapboard arched up towards the inlet direction is arranged in the sound absorption cavity; the partition board is provided with a through hole. Utility model's beneficial effect: simple structure, low in production cost just inhales the sound effectual, has improved market competition, utilizes the sound shell of inhaling that sets up outside the smoke pipe can effectively absorb the sound wave, reduces the noise that the lampblack absorber during operation produced.

Description

Mute noise-reduction smoke exhaust pipe

Technical Field

The utility model relates to a pipe of discharging fume, more specifically say, it relates to a pipe of discharging fume of making an uproar falls in silence.

Background

The household range hood is used in a kitchen, can remove smoke generated during cooking, keeps cleanness and human health in the kitchen, and becomes essential kitchen equipment for modern families. However, the problem brought by the use of the range hood is strong noise generated by the fan, and housewives and kitchen operators who are under the noise for a long time can generate adverse reactions such as headache, dysphoria, palpitation and the like, thereby causing serious influence on the body health.

The noise source of the range hood mainly comprises two aspects, namely the noise of the fan such as vibration, and the noise generated by airflow. The noise reduction technology and method of the prior known range hood are designed optimally, the performance of the fan is improved, the noise and vibration of the fan are reduced, the purpose of reducing the noise of the whole machine is achieved, the rigidity of relevant parts of the whole machine, particularly the rigidity of a shell thin plate part, is improved, and the generation of resonance noise of the shell thin plate part is inhibited. The noise generated by the airflow is not solved well at present.

In summary, there is a need for a silent and noise-reducing smoke exhaust pipe.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a pipe of discharging fume of making an uproar falls in silence.

In order to achieve the above purpose, the utility model provides a following technical scheme: a mute noise-reduction smoke exhaust pipe comprises a pipe body and mounting seats mounted at two ends of the pipe body, wherein a sound-absorbing shell is arranged outside the pipe body and fixedly connected with the mounting seats, the sound-absorbing shell is composed of a plurality of sound-absorbing plates, a plurality of sound-absorbing holes penetrating through the sound-absorbing plates are formed in the sound-absorbing plates, a plurality of flow stabilizing plates are arranged in the sound-absorbing holes, the flow stabilizing plates are arc-shaped and arch from inlets of the sound-absorbing holes to outlets, a sound-absorbing cavity is arranged in the sound-absorbing holes and close to the inlets, and a partition plate arched towards the inlets is arranged in the sound-absorbing cavity; the partition board is provided with a through hole.

Through adopting above-mentioned technical scheme, inhale sound shell and mount pad fixed connection, inhale the sound shell and comprise a plurality of abatvoix, can play noise reduction, noise absorbing's effect. Because sound is caused by air vibration, it is propagated by sound waves; in the process that sound waves pass through the silencing holes, the vibration of air is reduced through the flow stabilizing plates in the silencing holes, so that the sound of the sound is reduced; in addition, a part of sound waves passing through the sound energy can be converted into heat energy to be consumed through friction with the clearance of the inner wall of the sound attenuation hole. A baffle plate arched towards the inlet direction is arranged in the silencing cavity; the partition board is provided with a through hole, sound waves enter the silencing cavity from the inlet and collide with the partition board, and a part of sound waves are rebounded by the partition board and offset with the subsequent sound waves in the silencing cavity; thereby playing a role of sound attenuation.

The utility model discloses further set up to: the quantity of abatvoix is four, and the one end of abatvoix is equipped with the interface, and the other end is equipped with the bayonet joint with the interface adaptation, and four abatvoix are mutually supported and are constituteed and inhale the sound shell.

Through adopting above-mentioned technical scheme, the quantity of abatvoix is four, just in time lives the body parcel, makes the sound absorption effect better even. The interface has been seted up to the one end of abatvoix, other end integrated into one piece be equipped with the bayonet joint of interface adaptation, through the cooperation of interface with the bayonet joint, can constitute four abatvoix and inhale sound shell, be convenient for installation and dismantlement.

The utility model discloses further set up to: the diameter of the inlet hole of the silencing hole is outwards enlarged and inwards sunken, and an arc-shaped check ring extending inwards is arranged at the edge of the inlet.

By adopting the technical scheme, the sound wave gathering effect can be achieved by enlarging the aperture of the inlet. The arc-shaped check ring can guide sound waves at the inlet; meanwhile, the vibration of air can be reduced, and the noise is reduced.

The utility model discloses further set up to: a plurality of sound-absorbing cotton are uniformly arranged on the upper surface of the sound-absorbing plate, and sound-absorbing grooves are formed between every two adjacent sound-absorbing cotton.

Through adopting above-mentioned technical scheme, can absorb some noise through the setting up of inhaling the sound cotton, inhale the sound groove and can further strengthen sound effect.

The utility model discloses further set up to: the sound-absorbing shell is connected with the mounting seat through bolts.

Through adopting above-mentioned technical scheme, inhale the sound shell and pass through bolted connection with the mount pad, both strengthened joint strength, still be convenient for installation and dismantlement.

Utility model's beneficial effect: simple structure, low in production cost just inhales the sound effectual, has improved market competition, utilizes the sound shell of inhaling that sets up outside the smoke pipe can effectively absorb the sound wave, reduces the noise that the lampblack absorber during operation produced.

Drawings

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

fig. 2 is a schematic structural view of the sound-absorbing board of the present invention;

fig. 3 is a sectional view of the sound-absorbing panel of the present invention.

Reference numerals:

1. the sound absorption device comprises a pipe body, a mounting base, a sound absorption shell, a sound absorption plate, a sound absorption hole, a flow stabilizing plate, an inlet, an outlet 413, a sound absorption cavity, a partition plate, a through hole, a check ring 417, a plug connector 43, sound absorption cotton 44 and a sound absorption groove 45.

Detailed Description

The present invention will be further explained with reference to fig. 1 to 3.

A mute noise-reducing smoke exhaust pipe comprises a pipe body 1 and mounting seats 2 mounted at two ends of the pipe body 1, wherein a sound-absorbing shell 3 is arranged outside the pipe body 1, the sound-absorbing shell 3 is fixedly connected with the mounting seats 2, the sound-absorbing shell 3 is composed of a plurality of sound-absorbing plates 4, a plurality of sound-absorbing holes 41 penetrating through the sound-absorbing plates 4 are formed in the sound-absorbing plates 4, a plurality of flow stabilizing plates 411 are arranged in the sound-absorbing holes 41, the flow stabilizing plates 411 are arc-shaped and arch up from an inlet 412 of the sound-absorbing holes 41 to an outlet 413, a sound-absorbing cavity 414 is arranged in the sound-absorbing holes 41 and close to the inlet 412, and partition plates 415 arched up towards the inlet; the partition 415 is provided with a through hole 416. Inhale sound shell 3 and mount pad 2 fixed connection, inhale sound shell 3 and comprise a plurality of abatvoix 4, can play noise reduction, noise absorbing's effect. Because sound is caused by air vibration, it is propagated by sound waves; the sound waves pass through the muffling holes 41, and the air vibration is reduced by the stabilizing plates 411 in the muffling holes 41, so that the sound is reduced; in addition, a part of the sound waves passing through the sound energy will be converted into heat energy to be consumed by the friction with the gap of the inner wall of the muffling hole 41. A partition 415 which is arched towards the inlet 412 is arranged in the silencing cavity 414; the partition 415 is provided with a through hole 416, sound waves enter the sound attenuation cavity 414 from the inlet 412 and collide with the partition 415, and a part of the sound waves are rebounded by the partition 415 and offset with the sound waves entering subsequently in the sound attenuation cavity 414; thereby playing a role of sound attenuation. The quantity of abatvoix 4 is four, just in time wraps up body 1, makes the sound absorption effect better even. Interface 43 has been seted up to the one end of abatvoix 4, and other end integrated into one piece is equipped with the bayonet joint 42 with the adaptation of bayonet joint 43, through the cooperation of bayonet joint 43 with bayonet joint 42, can constitute four abatvoix 4 and inhale sound shell 3, be convenient for installation and dismantlement. When the pipe body is installed, the length of the pipe body can be adjusted according to the installation distance, different sound-absorbing boards are selected according to different lengths of the pipe body, and the sound-absorbing boards can be manufactured into proper sizes according to requirements so as to meet the requirements of various sizes. The hole diameter of the inlet 412 of the sound absorbing hole 41 is expanded outwards and is recessed inwards, and an arc-shaped retaining ring 417 extending inwards is arranged at the edge of the inlet 412. The sound waves may be focused by enlarging the aperture of the inlet 412. The arcuate collar 417 may guide the sound waves at the inlet 412; meanwhile, the vibration of air can be reduced, and the noise is reduced. A plurality of sound absorption cotton 44 are uniformly arranged on the upper surface of the sound absorption plate 4, and sound absorption grooves 45 are formed between the adjacent sound absorption cotton 44. The sound absorption groove 45 can further enhance the sound absorption effect by absorbing a part of the noise through the sound absorption cotton 44. Inhale sound shell 3 and pass through bolted connection with mount pad 2, both strengthened joint strength, still be convenient for installation and dismantlement.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the skilled in the art can carry out the common changes and replacements within the technical solution of the present invention.

Claims

1. The utility model provides a pipe of discharging fume of making an uproar falls in silence, includes body (1) and installs mount pad (2) at body (1) both ends, its characterized in that, body (1) is equipped with outward inhales sound shell (3), inhale sound shell (3) and mount pad (2) fixed connection, inhale sound shell (3) and comprise a plurality of abatvoix (4), be equipped with a plurality of bloops (41) that run through abatvoix (4) on abatvoix (4), be provided with a plurality of current stabilizers (411) in bloop (41), the shape of current stabilizer (411) is the arc and its direction arch up to export (413) from import (412) of bloop (41), be equipped with sound attenuation chamber (414) near import (412) in bloop (41), be equipped with baffle (415) to the arch up of import (412) direction in sound attenuation chamber (414); the partition plate (415) is provided with a through hole (416).

2. The silent noise-reduction smoke exhaust pipe according to claim 1, wherein the number of the sound-absorbing plates (4) is four, one end of each sound-absorbing plate (4) is provided with a socket (43), the other end of each sound-absorbing plate is provided with a plug-in connector (42) adaptive to the socket (43), and the four sound-absorbing plates (4) are matched with each other to form the sound-absorbing shell (3).

3. The quiet noise reduction smoke exhaust pipe according to claim 1, wherein the aperture of the inlet (412) of the sound absorbing hole (41) is expanded outwards and is recessed inwards, and an arc-shaped retaining ring (417) extending inwards is arranged at the edge of the inlet (412).

4. The silent noise-reduction smoke exhaust pipe according to claim 1, wherein a plurality of sound-absorbing cotton (44) are uniformly arranged on the upper surface of the sound-absorbing plate (4), and sound-absorbing grooves (45) are formed between adjacent sound-absorbing cotton (44).

5. The mute noise-reducing smoke exhaust pipe according to claim 1, wherein the sound-absorbing shell (3) is connected with the mounting seat (2) through bolts.