CN211070124U

CN211070124U - Exhaust device of biosafety cabinet

Info

Publication number: CN211070124U
Application number: CN201921880668.4U
Authority: CN
Inventors: 孙昊
Original assignee: Yangzhou Deke Laboratory Equipment Co ltd
Current assignee: Yangzhou Deke Laboratory Equipment Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-07-24
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses an exhaust device of a biological safety cabinet, which comprises a safety cabinet body, wherein an exhaust mechanism is arranged at the top of the safety cabinet body; the exhaust mechanism comprises a first exhaust pipe, a first exhaust shell, a second exhaust pipe, a rubber pipeline, a third exhaust pipe, a second exhaust shell, a fourth exhaust pipe, a fixed rod, a motor shaft and a blowing fan blade; the safety cabinet is characterized in that a first exhaust pipe is communicated with the top of the safety cabinet body, a first exhaust shell is communicated with the top of the first exhaust pipe, a second exhaust pipe is communicated with the top of the first exhaust shell, a rubber pipeline is communicated with the right side of the second exhaust pipe, a third exhaust pipe is communicated with the right side of the rubber pipeline, and a second exhaust shell is communicated with the right side of the third exhaust pipe. The utility model discloses a two motor and two fan leaf of blowing can not only be utilized to the fan leaf of blowing and the dirt screen in first exhaust casing and the second exhaust casing, have promoted carminative speed, pass through the dirt screen moreover, can filter the dust in the exhaust process.

Description

Exhaust device of biosafety cabinet

Technical Field

The utility model relates to a biosafety cabinet exhaust technical field specifically is an exhaust apparatus of biosafety cabinet.

Background

At present, an external discharge pipeline of a biological safety cabinet standard in the industry is a soft PVC pipe, the external discharge pipeline is generally set to be a standard part with the extension length of 4 meters, an exhaust device is set to be a simple connection consisting of a plurality of standard parts and easy to leak, the pipeline is not allowed to be bent so as to avoid influencing the exhausted wind, and the external discharge pipeline generally needs to pass through a wall body, so that the exhaust pipeline and a wall-penetrating wire must be specially made into a protective pipe so as to avoid being damaged when the exhaust pipeline passes through the wall body, therefore, the installation requirement is improved, and the manufacturing cost is increased

Patent No. CN201320206358.0 discloses an exhaust device of a biosafety cabinet, comprising: the biological safety cabinet comprises a body (1) of the biological safety cabinet, wherein an exhaust port is formed in the body (1). The exhaust port is connected with an exhaust fan (3) through an exhaust pipeline (2), the exhaust fan (3) is communicated with the external atmosphere or an exhaust channel (6), and the exhaust pipeline (2) is formed by PVC hard pipes. The exhaust pipeline formed by the PVC-U hard pipes is adopted to connect the biosafety cabinet body with the exhaust fan, so that the exhaust device can be installed in complex environments such as narrow space, the limitation of arrangement of the exhaust pipeline is reduced, the trend of the exhaust pipeline is diversified, and the aim of optimizing the installation layout of the exhaust device is fulfilled.

Currently, the existing exhaust device of the biosafety cabinet has some defects, for example; the exhaust device of the existing biological safety cabinet has the advantages that the exhaust speed is low, the exhaust efficiency is easily influenced, the adopted connecting pipeline cannot be moved randomly, and the exhaust noise of the existing pipeline is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an exhaust apparatus of biological safety cabinet has solved the problem that proposes among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: an exhaust device of a biological safety cabinet comprises a safety cabinet body, wherein an exhaust mechanism is arranged at the top of the safety cabinet body;

the exhaust mechanism comprises a first exhaust pipe, a first exhaust shell, a second exhaust pipe, a rubber pipeline, a third exhaust pipe, a second exhaust shell, a fourth exhaust pipe, a fixed rod, a motor shaft and a blowing fan blade; the top of the safety cabinet body is communicated with a first exhaust pipe, the top of the first exhaust pipe is communicated with a first exhaust shell, the top of the first exhaust shell is communicated with a second exhaust pipe, the right side of the second exhaust pipe is communicated with a rubber pipeline, the right side of the rubber pipeline is communicated with a third exhaust pipe, the right side of the third exhaust pipe is communicated with a second exhaust shell, and the right side of the second exhaust shell is communicated with a fourth exhaust pipe;

the fan comprises a first exhaust shell, a second exhaust shell, a motor, a fan blade, a motor shaft, a fan blade, a fan cover and a fan blade, wherein the motor is fixedly connected to the left end and the right end of the inner portion of the first exhaust shell and the upper end and the lower end.

As a preferred embodiment of the present invention, the first exhaust casing and the second exhaust casing have one end fixedly connected with dust filter net far away from the blowing fan blade.

As an embodiment of the present invention, the second exhaust pipe left side and the fourth exhaust pipe top are respectively communicated with a first resistive muffler and a second resistive muffler.

As a preferred embodiment of the present invention, the first exhaust pipe, the second exhaust pipe, the third exhaust pipe, the fourth exhaust pipe, the first exhaust casing and the second exhaust casing are made of stainless metal.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a two motor and two fan leaf of blowing in first exhaust casing and the second exhaust casing not only can be utilized to the fan leaf of blowing and the dirt screen that strains in, have promoted carminative speed, and through the dirt screen, can filter the dust in the exhaust process moreover, be favorable to more practical use a biosafety cabinet's exhaust apparatus.

2. The utility model discloses a rubber pipeline between second blast pipe and the third blast pipe can utilize the position that rubber pipeline removed third pipeline and fourth pipeline to increased exhaust mechanism's controllability, be favorable to more practical exhaust apparatus who uses a biosafety cabinet.

3. The utility model discloses a hindering nature silencer on second blast pipe and the fourth blast pipe can utilize hindering nature silencer, eliminates the noise in second blast pipe and the fourth blast pipe, and it is too big to have avoided the pipeline internal noise, is favorable to more practical exhaust apparatus who uses a biosafety cabinet.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a front view of an exhaust device of a biosafety cabinet according to the present invention;

FIG. 2 is a view of the exhaust casing of the exhaust device of the biosafety cabinet of the present invention;

fig. 3 is a circuit diagram of an exhaust device of the biosafety cabinet of the present invention.

In the figure: 1, the safety cabinet body 2, first exhaust pipe 3, first exhaust casing 4, second exhaust pipe 5, rubber pipeline 6, third exhaust pipe 7, second exhaust casing 8, fourth exhaust pipe 9, first resistive muffler 10, the resistive muffler 11 of second, dead lever 12, motor 13, motor shaft 14, blower fan leaf 15, the dust screen.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: an exhaust device of a biological safety cabinet comprises a safety cabinet body 1, wherein an exhaust mechanism is arranged at the top of the safety cabinet body 1;

the exhaust mechanism comprises a first exhaust pipe 2, a first exhaust shell 3, a second exhaust pipe 4, a rubber pipeline 5, a third exhaust pipe 6, a second exhaust shell 7, a fourth exhaust pipe 8, a fixed rod 11, a motor 12, a motor shaft 13 and a blowing fan blade 14; the top of the safety cabinet body 1 is communicated with a first exhaust pipe 2, the top of the first exhaust pipe 2 is communicated with a first exhaust shell 3, the top of the first exhaust shell 3 is communicated with a second exhaust pipe 4, the right side of the second exhaust pipe 4 is communicated with a rubber pipeline 5, the right side of the rubber pipeline 5 is communicated with a third exhaust pipe 6, the right side of the third exhaust pipe 6 is communicated with a second exhaust shell 7, and the right side of the second exhaust shell 7 is communicated with a fourth exhaust pipe 8;

the air conditioner is characterized in that motors 12 are fixedly connected to the left end and the right end inside the first exhaust shell 3 and the upper end and the lower end inside the second exhaust shell 7, one end of each motor 12 is rotatably connected with a motor shaft 13, and the other end of each motor shaft 13 is fixedly connected with a blowing fan blade 14.

Referring to fig. 1 in this embodiment, through the blowing fan blades 14 and the dust filter 15 in the first exhaust casing 2 and the second exhaust casing 3, the dual-motor 12 and the dual-blowing fan blades 14 can be utilized to increase the exhaust speed, and the dust filter 15 can filter the dust in the exhaust process, thereby facilitating the more practical use of the exhaust apparatus of the biosafety cabinet, and through the rubber pipe 5 between the second exhaust pipe 4 and the third exhaust pipe 6, the positions of the third pipe and the fourth pipe can be moved by the rubber pipe 5, thereby increasing the adjustability of the exhaust mechanism, and facilitating the more practical use of the exhaust apparatus of the biosafety cabinet.

Wherein, a dust filter 15 is fixedly connected to one end of the first exhaust casing 3 and the second exhaust casing 7 far away from the blowing fan blade 14.

And the left side of the second exhaust pipe 2 and the top of the fourth exhaust pipe 8 are respectively communicated with a first resistive muffler 9 and a second resistive muffler 10.

Referring to fig. 1 in this embodiment, the resistive mufflers on the second exhaust pipe 2 and the fourth exhaust pipe 8 can be used to eliminate noise in the second exhaust pipe 2 and the fourth exhaust pipe 8, so as to avoid excessive noise in the pipes, which is beneficial to more practical use of an exhaust apparatus of a biosafety cabinet.

The first exhaust pipe 2, the second exhaust pipe 4, the third exhaust pipe 6, the fourth exhaust pipe 8, the first exhaust casing 3 and the second exhaust casing 7 are all made of stainless metal.

When the exhaust device of a biological safety cabinet is used, firstly, the motor 12 is electrically connected with an external power supply, then the motor 12 is in signal connection with an external control switch, after connection is completed, when the exhaust speed is required to be increased, the motor 12 can be opened, the motor 12 drives the motor shaft 13, the motor shaft 13 drives the blowing fan blades 14, the exhaust fan blades 14 pass through the double motors 12 and the double blowing fan blades 14, meanwhile, the blowing fan blades 14 are used for exhausting air, the rubber pipeline 5 on the second exhaust pipe 4 can be used for moving the positions of the third exhaust pipe 6 and the fourth exhaust pipe 8 by using the rubber pipeline 5, so that the adjustability of an exhaust mechanism is increased, and due to the fact that the resistive mufflers are arranged on the second exhaust pipe 6 and the fourth exhaust pipe 8, the resistive mufflers can be used for eliminating noise in the second pipeline and the fourth pipeline, and overlarge noise in the pipelines is avoided.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an exhaust apparatus of biological safety cabinet, includes safe cabinet body (1), its characterized in that: the top of the safety cabinet body (1) is provided with an exhaust mechanism;

the exhaust mechanism comprises a first exhaust pipe (2), a first exhaust shell (3), a second exhaust pipe (4), a rubber pipeline (5), a third exhaust pipe (6), a second exhaust shell (7), a fourth exhaust pipe (8), a fixing rod (11), a motor (12), a motor shaft (13) and a blowing fan blade (14); the top of the safety cabinet body (1) is communicated with a first exhaust pipe (2), the top of the first exhaust pipe (2) is communicated with a first exhaust shell (3), the top of the first exhaust shell (3) is communicated with a second exhaust pipe (4), the right side of the second exhaust pipe (4) is communicated with a rubber pipeline (5), the right side of the rubber pipeline (5) is communicated with a third exhaust pipe (6), the right side of the third exhaust pipe (6) is communicated with a second exhaust shell (7), and the right side of the second exhaust shell (7) is communicated with a fourth exhaust pipe (8);

the air conditioner is characterized in that the left end and the right end inside the first exhaust shell (3) and the upper end and the lower end inside the second exhaust shell (7) are fixedly connected with a motor (12), one end of the motor (12) is rotatably connected with a motor shaft (13), and the other end of the motor shaft (13) is fixedly connected with a blowing fan blade (14).

2. The exhaust apparatus of a biosafety cabinet according to claim 1, wherein: and one ends of the interiors of the first exhaust shell (3) and the second exhaust shell (7) far away from the blowing fan blades (14) are fixedly connected with dust filtering nets (15).

3. The exhaust apparatus of a biosafety cabinet according to claim 1, wherein: the left side of the second exhaust pipe (4) and the top of the fourth exhaust pipe (8) are respectively communicated with a first resistive muffler (9) and a second resistive muffler (10).

4. The exhaust apparatus of a biosafety cabinet according to claim 1, wherein: the first exhaust pipe (2), the second exhaust pipe (4), the third exhaust pipe (6), the fourth exhaust pipe (8), the first exhaust shell (3) and the second exhaust shell (7) are all made of stainless metal materials.