CN218913291U

CN218913291U - Smoke suction pump sound insulation device and smoke detector

Info

Publication number: CN218913291U
Application number: CN202223509219.3U
Authority: CN
Inventors: 王翰林; 杨青青
Original assignee: SHENZHEN AMAE CO Ltd
Current assignee: SHENZHEN AMAE CO Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-04-25
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a smoke suction pump sound insulation device and a smoke detector, which comprise a base and a sound insulation cover, wherein the base is provided with a suction pump, the sound insulation cover covers the suction pump on the base, and the bottom of the base is provided with a plurality of rubber supporting feet; the base is provided with a sound inlet hole for sound to enter, a sound dispersing pipe is arranged in the base, one side of the sound dispersing pipe is provided with a plurality of sound dispersing holes, the other side of the sound dispersing pipe is arranged in a sealing mode, and the sound dispersing pipe is arranged below the sound inlet hole; and a plurality of reflecting pipes are arranged in the base, and all the reflecting pipes are arranged at intervals parallel to the sound dispersing pipes. The utility model can reduce the noise generated by the vibration of the suction pump, and can reflect and absorb the noise generated by the operation of the suction pump, and the sound insulation effect is better.

Description

Smoke suction pump sound insulation device and smoke detector

Technical Field

The utility model relates to the technical field of smoke and dust sampling and detecting equipment, in particular to a smoke and dust suction pump sound insulation device and a smoke and dust detector.

Background

At present, in the use process of the smoke detector, the air suction pump is required to suck air to the outside, but the air suction pump works, the blades in the air suction pump can generate larger vibration, so that the air suction pump is noisy in working and can seriously influence the hearing of operators after long-time use, and harm is generated to human bodies.

Disclosure of Invention

The utility model aims to provide a smoke suction pump sound insulation device and a smoke detector, which can absorb and isolate noise generated by a smoke suction pump.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: the sound insulation device comprises a base and a sound insulation cover, wherein the base is provided with a suction pump, the sound insulation cover covers the suction pump on the base, and the bottom of the base is provided with a plurality of rubber supporting feet; the base is provided with a sound inlet hole for sound to enter, a sound dispersing pipe is arranged in the base, one side of the sound dispersing pipe is provided with a plurality of sound dispersing holes, the other side of the sound dispersing pipe is arranged in a sealing mode, and the sound dispersing pipe is arranged below the sound inlet hole; and a plurality of reflecting pipes are arranged in the base, and all the reflecting pipes are arranged at intervals parallel to the sound dispersing pipes.

Preferably, the middle part of the rubber supporting leg is provided with a hollow hole.

Preferably, the inner wall of the sound insulation cover is stuck with sound insulation cotton.

Preferably, the base is provided with two mounting holes, and the suction pump is fixedly mounted on the base through the mounting holes.

Preferably, the inner wall and the outer wall of the base are adhered with sound absorbing cotton.

In addition, the utility model also provides a smoke detector, which comprises the smoke suction pump sound insulation device and an instrument body, wherein the instrument body is provided with a smoke inlet nozzle, the instrument body is internally provided with a gas bin, the smoke suction pump sound insulation device is arranged in the instrument body, and the smoke inlet nozzle, the gas bin and the suction pump are sequentially communicated.

The beneficial effects of the utility model are as follows: according to the smoke suction pump sound insulation device, the plurality of rubber supporting feet are arranged at the bottom of the base, so that noise generated by vibration of the suction pump is reduced; the sound-proof housing covers the suction pump on the base, and most of the noise generated by the suction pump enters the base through the sound inlet holes and then is diffused by the sound diffusing holes on the sound diffusing pipe, the noise is reflected and absorbed for many times in the base, part of the noise enters the reflecting pipe, part of the noise emitted from the reflecting pipe is counteracted with the noise emitted from the sound diffusing pipe, the noise is further reduced, and the sound-proof effect is good.

The utility model will become more apparent from the following description taken in conjunction with the accompanying drawings which illustrate embodiments of the utility model.

Drawings

FIG. 1 is a schematic diagram of a smoke inhalation pump sound insulation device;

FIG. 2 is a schematic view of the getter pump and base of FIG. 1;

FIG. 3 is a schematic view of the structure of the inside of the base of FIG. 2;

fig. 4 is a schematic diagram of the smoke detector.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 3, a smoke suction pump sound insulation device comprises a base 591 and a sound insulation cover 594, wherein a suction pump 592 is arranged on the base 591, the sound insulation cover 594 covers the suction pump 592 on the base 591, and a plurality of rubber supporting feet 595 are arranged at the bottom of the base 591; the base 591 is provided with a sound inlet hole 593 for sound to enter, the base 591 is internally provided with a sound dispersing pipe 597, one side of the sound dispersing pipe 597 is provided with a plurality of sound dispersing holes 5971, the other side of the sound dispersing pipe 597 is arranged in a sealing mode, and the sound dispersing pipe 597 is arranged below the sound inlet hole 593; a plurality of reflecting pipes 598 are further arranged in the base 591, and all the reflecting pipes 598 are arranged at intervals parallel to the sound dispersing pipes 597. In the smoke suction pump sound insulation device of the embodiment, the plurality of rubber supporting feet 595 are arranged at the bottom of the base 591, and the rubber supporting feet 595 can reduce noise generated by vibration of the suction pump 592; the sound-proof cover 594 covers the suction pump 592 on the base 591, most of the noise generated by the suction pump 592 enters the base 591 through the sound inlet hole 593, and as one side of the sound-proof pipe 597 is sealed, the other side is provided with a plurality of sound-proof holes 5971, the noise is diffused by the sound-proof holes 5971 on the sound-proof pipe 597 or is diffused along the opening end of the sound-proof pipe 597, as shown by the arrow in fig. 3, the noise is reflected and absorbed for many times in the base 591, part of the noise enters the reflecting pipe 598, part of the noise emitted from the reflecting pipe 598 is counteracted with the noise emitted from the sound-proof pipe 597, the noise is further reduced, and the sound-proof effect is better. Of course, since the suction pump 592 also generates heat when in operation, since the suction pump 592 is covered with the sound-proof cover 594, which is difficult to dissipate heat, the base 591 may be provided with a heat dissipation fan, and the sound-proof cover 594 is provided with a heat dissipation opening at the heat dissipation fan for the heat dissipation fan to dissipate the heat generated by the suction pump 592.

In one embodiment, the middle portion of the rubber support leg 595 is provided with a hollow hole 5951. The noise generated by the vibration of the suction pump 592 can be reduced, and the hollow holes 5951 are formed in the middle of the rubber support feet 595, so that the damping effect is better, and the noise generated by the vibration of the suction pump 592 is further reduced.

In one embodiment, the inner wall of the sound hood 594 is covered with sound insulation. The sound-proof cover 594 may be made of a metal plate, the inner wall of the sound-proof cover 594 is stuck with sound-proof cotton, and noise generated when the suction pump 592 works is absorbed by part of the noise firstly passing through the sound-proof cotton on the inner wall of the sound-proof cover 594, so that the noise generated when the suction pump 592 works is further reduced.

In one embodiment, the base 591 is provided with two mounting holes 596, and the getter pump 592 is fixedly mounted on the base 591 through the mounting holes 596. The suction pump 592 is fixedly mounted to the base 591 by means of screws engaging the mounting holes 596 to prevent additional noise from being generated by the suction pump 592 colliding with the base 591 or the sound housing 594 during operation.

In one embodiment, the inner wall and the outer wall of the base 591 are adhered with sound absorbing cotton. Noise generated by the suction pump 592 enters the base 591 through the sound inlet hole 593, the noise is diffused by the sound diffusing hole 5971 on the sound diffusing pipe 597, or is diffused along the opening end of the sound diffusing pipe 597, the noise is absorbed by sound absorbing cotton in the base 591, the sound absorbing cotton is stuck on the outer wall of the base 591 to further reduce the transmission of the noise in the base 591, and the sound insulating effect is good.

In addition, the utility model also provides a smoke detector, which comprises the smoke suction pump sound insulation device, referring to fig. 4, and further comprises an instrument body 500, wherein the instrument body 500 is provided with a smoke inlet nozzle 510, the instrument body 500 is internally provided with a gas bin 530, the smoke suction pump sound insulation device is arranged in the instrument body, and the smoke inlet nozzle 510, the gas bin 530 and the suction pump 592 are sequentially communicated. The suction pump 592 operates to draw in smoke from the smoke intake nozzle 510.

The foregoing description of the preferred embodiments of the present utility model is not intended to limit the scope of the claims, which follow, as defined in the claims.

Claims

1. The smoke suction pump sound insulation device is characterized by comprising a base and a sound insulation cover, wherein the suction pump is arranged on the base, the sound insulation cover covers the suction pump on the base, and a plurality of rubber supporting feet are arranged at the bottom of the base; the base is provided with a sound inlet hole for sound to enter, a sound dispersing pipe is arranged in the base, one side of the sound dispersing pipe is provided with a plurality of sound dispersing holes, the other side of the sound dispersing pipe is arranged in a sealing mode, and the sound dispersing pipe is arranged below the sound inlet hole; and a plurality of reflecting pipes are arranged in the base, and all the reflecting pipes are arranged at intervals parallel to the sound dispersing pipes.

2. A smoke and dust getter apparatus according to claim 1 wherein the rubber support feet have hollow holes in the middle.

3. A smoke and dust getter pump sound insulation apparatus according to claim 1 wherein the inner wall of the sound housing is bonded with sound insulation cotton.

4. A smoke and dust getter pump sound insulation apparatus according to claim 1 wherein the base has two mounting holes, and the getter pump is fixedly mounted to the base through the mounting holes.

5. A smoke and dust getter pump sound insulation apparatus according to claim 1 wherein the inner and outer walls of the base are each adhered with sound absorbing cotton.

6. A smoke detector, characterized in that the smoke detector comprises the smoke suction pump sound insulation device according to any one of claims 1-5, and further comprises an instrument body, wherein a smoke inlet nozzle is arranged on the instrument body, a gas bin is further arranged in the instrument body, the smoke suction pump sound insulation device is arranged in the instrument body, and the smoke inlet nozzle, the gas bin and the suction pump are sequentially communicated.