CN217313462U

CN217313462U - Biological safety cabinet with multifunctional exhaust system

Info

Publication number: CN217313462U
Application number: CN202220172066.9U
Authority: CN
Inventors: 姚昆鹏
Original assignee: Qingdao Jiuwei Medical Innovation Research Institute Co ltd
Current assignee: Qingdao Jiuwei Medical Innovation Research Institute Co ltd
Priority date: 2022-01-22
Filing date: 2022-01-22
Publication date: 2022-08-30
Anticipated expiration: 2032-01-22

Abstract

The utility model relates to a biosafety cabinet field discloses a biosafety cabinet with multi-functional exhaust system, the intelligent cabinet temperature adjusting device comprises a cabinet body, the clean bench front end is provided with the curved surface slope, the front side position department that curved surface slope upper surface is close to the air intake grille is provided with a plurality of second grade air current hole, filter bottom end fixedly connected with prefilter, upside the inside active carbon filter screen that is provided with of mounting groove, downside the inside HEPA filter membrane that is provided with of mounting groove. The utility model discloses in, catch the fence through the towel and effectively block some large-grained impurity, cause the jam when preventing follow-up filtration, can accomplish through mounting groove and end cover and change filter screen work, the sealed cushion of cooperation guarantees that the safe in utilization effect after changing is unchangeable, the grid that admits air is installed on the curved surface slope, can prevent that the operator probably from leading to the fact the jam of admitting air at this position experimental article, simple structure, rationally distributed, the user demand that satisfies the user that can be better.

Description

Biological safety cabinet with multifunctional exhaust system

Technical Field

The utility model relates to a biosafety cabinet field especially relates to a biosafety cabinet with multi-functional exhaust system.

Background

The biological safety cabinet is a box type air purification negative pressure safety device capable of preventing aerosol from dissipating due to the fact that some dangerous or unknown biological particles are contained in the experimental operation and treatment process, is widely applied to scientific research, teaching, clinical examination and production in the fields of microbiology, biomedicine, genetic engineering, biological products and the like, is the most basic safety protection equipment in a primary protection barrier in laboratory biological safety, and is mainly used for sucking air in the cabinet outwards to enable the interior of the cabinet to be kept in a negative pressure state and protect working personnel through vertical air flow.

Chinese patent document CN207769817U discloses a multifunctional biosafety cabinet, and the device is equipped with the body in structure, and the embedding is installed inside the safety cabinet main part, and the upper surface of fixed mounting ring is laminated with the lower surface of safety cabinet main part top surface mutually, is equipped with the ultraviolet germicidal lamp in the trachea and can eliminates breeding the bacterium of interception on the HEPA filter screen, can the effectual life cycle who prolongs the filter screen, reduces the frequency of changing the clearance filter screen. However, the replacement of the HEPA filter screen usually requires cutting off the original sealant, replacing the new filter screen, and then resealing the filter screen with the sealant, and the work is very complicated, and the requirement on the operator is very high, and meanwhile, the filter screen may be blocked by large-particle impurities during the filtration, and needs to be improved.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a biosafety cabinet with a multifunctional exhaust system.

In order to achieve the above purpose, the utility model adopts the following technical scheme: biosafety cabinet with multi-functional exhaust system, the intelligent cabinet temperature adjusting device comprises a cabinet body, cabinet body bottom inner wall fixedly connected with clean bench, the clean bench front end is provided with the curved surface slope, the upper surface on curved surface slope is provided with the grid of admitting air, the front side position department that curved surface slope upper surface is close to the grid of admitting air is provided with a plurality of second grade air current hole, cabinet body internal top fixedly connected with exhaust apparatus, exhaust apparatus bottom input end fixedly connected with filter, filter bottom fixedly connected with prefilter, prefilter bottom fixedly connected with towel catches the fence, the upper and lower both sides of filter both ends inner wall all are provided with the mounting groove, the upside the inside active carbon filter screen that is provided with of mounting groove, downside the inside HEPA filter membrane that is provided with of mounting groove.

As a further description of the above technical solution:

the cabinet body bottom fixedly connected with support frame, the equal fixedly connected with universal wheel in support frame bottom four corners.

As a further description of the above technical solution:

the opening at the bottom of the front end of the cabinet body is connected with a glass hanging window in a sliding mode.

As a further description of the above technical solution:

the middle part of the top end of the exhaust device is fixedly connected with an exhaust pipe, and the top of the inner wall of the exhaust pipe is fixedly connected with a gas detection device.

As a further description of the above technical solution:

and one side of the front end of the filter is rotatably connected with an end cover.

As a further description of the above technical solution:

the equal fixedly connected with of inside wall of mounting groove seals up the cushion.

As a further description of the above technical solution:

the middle part of the front end of the cabinet body is fixedly connected with a controller.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, through setting up the prefilter at the filter front end to utilize the towel to catch the fence and effectively block some large-grained impurity before the prefilter, cause the jam when preventing follow-up filtration, through opening the end cover, take out HEPA filter membrane or active carbon filter screen from the mounting groove and load on new filter screen again and can accomplish the change, utilize sealed cushion to guarantee the sealed effect after the installation, personnel's safety when both guaranteeing to change, also guarantee that the safe in utilization effect after changing is unchangeable, convenient and practical.

2. The utility model discloses in, through installing air-inlet grille on the curved surface slope, can prevent that the operator from probably causing the air inlet to block up in this position experiment article of putting, secondary air current hole can prevent to cause leaking of contaminated air in the cabinet because of sheltering from when the operator is tested, simple structure, rationally distributed, user's user demand that satisfies that can be better.

Drawings

Fig. 1 is a schematic perspective view of a biosafety cabinet with a multifunctional exhaust system according to the present invention;

FIG. 2 is a front view of the interior of the biosafety cabinet with a multifunctional exhaust system according to the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

Illustration of the drawings:

1. a cabinet body; 2. a support frame; 3. a universal wheel; 4. cleaning the workbench; 5. an air intake grille; 6. a curved slope; 7. a secondary airflow hole; 8. a glass hung window; 9. an exhaust device; 10. an exhaust pipe; 11. a gas detection device; 12. a filter; 13. an end cap; 14. a prefilter; 15. a towel capturing fence; 16. mounting grooves; 17. sealing the rubber gasket; 18. an active carbon filter screen; 19. a HEPA filter membrane; 20. and a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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 an embodiment: a biosafety cabinet with a multifunctional exhaust system comprises a cabinet body 1, wherein a clean workbench 4 and a main working area are fixedly connected to the inner wall of the bottom end of the cabinet body 1, a curved slope 6 is arranged at the front end of the clean workbench 4, an air inlet grille 5 is arranged on the upper surface of the curved slope 6, the air inlet grille 5 is installed on the curved slope 6 and can prevent an operator from possibly placing experimental articles at the position to cause air inlet blockage, a plurality of secondary airflow holes 7 are arranged on the upper surface of the curved slope 6, which is close to the front side of the air inlet grille 5 and can prevent polluted air in the cabinet from leaking due to shielding when the operator conducts an experiment, an exhaust device 9 is fixedly connected to the top in the cabinet body 1, a filter 12 is fixedly connected to the input end of the bottom of the exhaust device 9, a main filtering structure is fixedly connected to the bottom end of the filter 12, a pre-filtering structure is fixedly connected to the bottom end of the pre-filtering device 14, and a towel capturing fence 15 is fixedly connected to the bottom end of the pre-filtering device, effectively block some big impurity of granule, the upper and lower both sides of filter 12 both ends inner wall all are provided with mounting groove 16, and the inside active carbon filter screen 18 that is provided with of upside mounting groove 16, the inside HEPA filter membrane 19 that is provided with of downside mounting groove 16, double-deck filtration improves the filter effect.

1 bottom fixedly connected with support frame 2 of the cabinet body, the equal fixedly connected with universal wheel 3 in 2 bottom four corners of support frame, the convenience device removes, the opening part sliding connection of 1 front end bottom of the cabinet body has glass hanging window 8, one of the basic structure, 9 top middle part fixedly connected with blast pipes 10 of exhaust apparatus, the gaseous detection device 11 of top fixedly connected with of blast pipes 10 inner wall, detect exhaust gas composition, prevent to cause the pollution to leak, filter 12 front end one side is rotated and is connected with end cover 13, the convenience is installed the filter screen, the equal fixedly connected with of inside wall sealing rubber pad 17 of mounting groove 16, improve the safety in utilization after the filter screen installation, 1 front end middle part fixedly connected with controller 20 of the cabinet body, the main control structure.

The working principle is as follows: through setting up prefilter 14 at filter 12 front end, and utilize towel catch 15 to effectively block some large-grained impurity before prefilter 14, cause the jam when preventing follow-up filtration, through opening end cover 13, take out HEPA filter membrane 19 or active carbon filter screen 18 from mounting groove 16 and install new filter screen again and can accomplish the change, utilize sealed cushion 17 to guarantee the sealed effect after the installation, personnel's safety when both guaranteeing to change, also guarantee that the safe in utilization effect after the change is unchangeable, through installing air inlet grille 5 on curved slope 6, can prevent that the operator from probably causing the jam of admitting air at this position experiment article, secondary air flow hole 7 can prevent to lead to the fact the leakage of interior contaminated air of cabinet because of sheltering from when the operator does the experiment.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. Biological safety cabinet with multi-functional exhaust system, including the cabinet body (1), its characterized in that: the cleaning cabinet is characterized in that a cleaning workbench (4) is fixedly connected to the inner wall of the bottom end of the cabinet body (1), a curved surface slope (6) is arranged at the front end of the cleaning workbench (4), an air inlet grille (5) is arranged on the upper surface of the curved surface slope (6), a plurality of secondary air flow holes (7) are formed in the position, close to the front side of the air inlet grille (5), of the upper surface of the curved surface slope (6), an exhaust device (9) is fixedly connected to the inner top of the cabinet body (1), a filter (12) is fixedly connected to the input end of the bottom of the exhaust device (9), a pre-filter (14) is fixedly connected to the bottom end of the filter (12), a towel capturing fence (15) is fixedly connected to the bottom end of the pre-filter (14), mounting grooves (16) are formed in the upper and lower sides of the inner walls of the two ends of the filter (12), and an active carbon filter screen (18) is arranged inside the mounting grooves (16), an HEPA filter membrane (19) is arranged in the mounting groove (16) at the lower side.

2. The biosafety cabinet with a multifunctional exhaust system according to claim 1, wherein: the cabinet body (1) bottom fixedly connected with support frame (2), the equal fixedly connected with universal wheel (3) in support frame (2) bottom four corners.

3. The biosafety cabinet with a multifunctional exhaust system according to claim 1, wherein: the opening at the bottom of the front end of the cabinet body (1) is connected with a glass hanging window (8) in a sliding manner.

4. The biosafety cabinet with a multifunctional exhaust system according to claim 1, wherein: exhaust apparatus (9) top middle part fixedly connected with blast pipe (10), the top fixedly connected with gas detection device (11) of blast pipe (10) inner wall.

5. The biosafety cabinet with a multifunctional exhaust system according to claim 1, wherein: one side of the front end of the filter (12) is rotatably connected with an end cover (13).

6. The biosafety cabinet with a multifunctional exhaust system according to claim 1, wherein: the inner side wall of the mounting groove (16) is fixedly connected with a sealing rubber gasket (17).

7. The biosafety cabinet with a multifunctional exhaust system according to claim 1, wherein: the middle part of the front end of the cabinet body (1) is fixedly connected with a controller (20).