CN213527863U

CN213527863U - Biological safety cabinet and purification exhaust device

Info

Publication number: CN213527863U
Application number: CN202022313593.0U
Authority: CN
Inventors: 姜玲平; 唐红兵; 吴旦新; 欧小明
Original assignee: Kunming Keaote Laboratory Equipment Co ltd
Current assignee: Kunming Keaote Laboratory Equipment Co ltd
Priority date: 2020-10-17
Filing date: 2020-10-17
Publication date: 2021-06-25
Anticipated expiration: 2030-10-17

Abstract

The utility model discloses a biosafety cabinet and purification exhaust device, comprises a workbench, the upper end of workstation is fixed with the backup pad, constitute the control chamber between workstation and the backup pad, the cabinet body is installed to the upper end of backup pad, the kuppe is installed to the bottom of the cabinet body, the rose box is installed to the upper end of kuppe, the internally mounted of rose box has the fixed plate, set up threaded hole on the fixed plate, threaded hole installs the threaded rod, the cavity has been seted up to one side of threaded hole, the one end of threaded rod is fixed with the stripper plate, the other end of threaded rod is fixed with the handle, install the filter frame between the fixed plate, install the filter between the filter frame, the upper end intercommunication of rose box has the ventilation pipe, the internally mounted of ventilation pipe has the front end of air exhauster control chamber to be equipped with protective glass. The utility model discloses be convenient for change the filter, easy operation, it is convenient to change, improves and changes efficiency.

Description

Biological safety cabinet and purification exhaust device

Technical Field

The utility model relates to a biological safety cabinet technical field, in particular to biological safety cabinet and purification exhaust device.

Background

The biosafety cabinet is designed for protecting the operator, the laboratory environment and the experimental materials from being exposed to infectious aerosols and splashes which may be generated in the operation process when operating infectious experimental materials such as primary cultures, strains of bacteria and viruses and diagnostic specimens. The biological safety cabinet can be divided into three categories, namely a first-level category, a second-level category and a third-level category so as to meet different biological research and epidemic prevention requirements. The biological safety cabinet is widely applied to the fields of medical health, disease prevention and control, food sanitation, biological pharmacy, environmental monitoring, various biological laboratories and the like, is an important basis for guaranteeing biological safety and environmental safety, and belongs to the category of 'livelihood' metering.

The existing biological safety cabinet is used for a period of time, bacteria can be bred on the surface of a filter medium, secondary pollution is very easy to generate, and therefore the filter needs to be replaced regularly.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a biosafety cabinet and purification exhaust device can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a biosafety cabinet and purification exhaust device comprises a workbench, wherein a support plate is fixed at the upper end of the workbench, an operation chamber is formed between the workbench and the support plate, a cabinet body is installed at the upper end of the support plate, a flow guide cover is installed at the bottom end of the cabinet body, a filter box is installed at the upper end of the flow guide cover, a fixed plate is installed inside the filter box, a threaded hole is formed in the fixed plate, a threaded rod is installed in the threaded hole, a cavity is formed in one side of the threaded hole, an extrusion plate is fixed at one end of the threaded rod and is arranged in the cavity, a handle is fixed at the other end of the threaded rod, a filter frame is installed between the fixed plates, a filter is installed between the filter frames, the upper end of the filter box is communicated with a ventilation pipe, an exhaust fan is installed inside the ventilation, the utility model discloses a cabinet, including the cabinet body, the backup pad, the air inlet is equipped with the filter screen, the lower extreme of air inlet is connected with the intake pipe, the intake pipe is established in the inside of the cabinet body and backup pad, just be equipped with a plurality of inlet port in the backup pad, inlet port and intake pipe are linked together, just the front end of control chamber is equipped with protective glass, the spout has been seted up to the front end of the cabinet body, protective glass passes through slider and spout sliding connection, just the last handle hole of having seted up of protective glass, install rubber gloves in the handle hole, just.

Preferably, the lower extreme of workstation is fixed with the supporting leg, the universal wheel is installed to the lower extreme of supporting leg, be equipped with the brake block on the universal wheel.

Preferably, a box door of the filter box is arranged on the rear side of the cabinet body.

Preferably, the fixing plate is of an L-shaped structure.

Preferably, the workbench is provided with a groove matched with the protective glass, and the groove is internally provided with a rubber sealing ring.

Preferably, the filter is provided in two.

Compared with the prior art, the utility model discloses following beneficial effect has: the biosafety cabinet and the purification exhaust device are used, protective glass moves upwards, experimental equipment and materials are placed on a workbench, the protective glass moves downwards to a groove on the workbench, an operation chamber is closed, operation holes are formed in two hands, rubber gloves are worn for experiment, an exhaust fan is started at the same time, air enters from an air inlet, the air is filtered by a filter screen, the filtered air enters into the operation chamber through an air inlet pipe and an air inlet, harmful gas generated in the experiment enters into a flow guide cover from the operation chamber and enters into a filter box from the flow guide cover, the harmful gas is filtered by a filter and is discharged from a ventilation pipe, a box door on the filter box is opened when the filter is replaced, the handle is rotated to drive a threaded rod and an extrusion plate to rotate so as to drive the threaded rod and the extrusion plate to move towards the direction far away from the filter frame, and the filter frame, The filter is taken down, the filter is convenient to replace, the operation is simple, the replacement is convenient, and the replacement efficiency is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a biosafety cabinet and a purification and exhaust device of the present invention;

FIG. 2 is an enlarged schematic plan view of part A of FIG. 1 of a biosafety cabinet and a purification and exhaust device according to the present invention;

fig. 3 is a schematic side view of the biosafety cabinet and the purification and exhaust device of the present invention.

In the figure: 1. a work table; 2. a support plate; 3. an operation chamber; 4. a cabinet body; 5. a pod; 6. a filter box; 7. a fixing plate; 8. a threaded hole; 9. a threaded rod; 10. a cavity; 11. a pressing plate; 12. a handle; 13. a filter frame; 14. a filter; 15. a vent pipe; 16. an exhaust fan; 17. protective glass; 18. a chute; 19. a slider; 20. an operation hole; 21. rubber gloves; 22. an air inlet; 23. a filter screen; 24. an air inlet pipe; 25. an air inlet; 26. an LED lamp; 27. supporting legs; 28. a universal wheel.

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.

As shown in fig. 1-3, a biosafety cabinet and purification exhaust device comprises a workbench 1, a support plate 2 is fixed at the upper end of the workbench 1, an operation chamber 3 is formed between the workbench 1 and the support plate 2, a cabinet body 4 is installed at the upper end of the support plate 2, a flow guide cover 5 is installed at the bottom end of the cabinet body 4, a filter box 6 is installed at the upper end of the flow guide cover 5, a fixed plate 7 is installed inside the filter box 6, a threaded hole 8 is formed in the fixed plate 7, a threaded rod 9 is installed in the threaded hole 8 through threads, a cavity 10 is formed in one side of the threaded hole 8, a squeezing plate 11 is fixed at one end of the threaded rod 9, the squeezing plate 11 is arranged in the cavity 10, a handle 12 is fixed at the other end of the threaded rod 9, a filter frame 13 is installed between the fixed plates 7, and a filter, just the upper end intercommunication of rose box 6 has ventilation pipe 15, the internally mounted of ventilation pipe 15 has air exhauster 16, air inlet 22 is installed on the top of the cabinet body 4, air inlet 22 department installs filter screen 23, the lower extreme of air inlet 22 is connected with intake pipe 24, intake pipe 24 is established in the inside of the cabinet body 4 and backup pad 2, just be equipped with a plurality of inlet port 25 in the backup pad 2, inlet port 25 and intake pipe 24 are linked together, just the front end of control chamber 3 is equipped with protective glass 17, spout 18 has been seted up to the front end of the cabinet body 4, protective glass 17 passes through slider 19 and spout 18 sliding connection, just the handle hole 20 has been seted up on the protective glass 17, install rubber gloves 21 in the handle hole 20, just LED lamp 26 is installed to the side of backup pad 2.

In this embodiment, preferably, the lower end of the workbench 1 is fixed with a supporting leg 27, the lower end of the supporting leg 27 is provided with a universal wheel 28, and the universal wheel 28 is provided with a brake pad, so that the movement of the biosafety cabinet is facilitated.

In this embodiment, preferably, a box door of the filter box 6 is opened on the rear side of the cabinet body 4, and the box door is hinged to the cabinet body 4, so that the filter box 6 can be conveniently opened, and the filter 14 in the filter box 6 can be replaced.

In this embodiment, preferably, the fixing plate 7 is an L-shaped structure, so as to fix the filter frame 13.

In this embodiment, it is preferable that a groove matched with the protection glass 17 is formed in the workbench 1, and a rubber seal ring is installed in the groove, so that the protection glass 17 can seal the operation chamber 3 conveniently.

In this embodiment, preferably, there are two filters 14, and the two filters 14 play a role of double protection to prevent a risk from occurring when one of the filters 14 fails; meanwhile, the two filters 14 can improve the filtering effect, effectively filter the exhausted air and have high safety.

It should be noted that, the utility model relates to a biosafety cabinet and purification exhaust device, during the use, with the ascending removal of cover glass 17, put experimental device and material into workstation 1, with the recess of cover glass 17 downstream on workstation 1, close control chamber 3, put into handle hole 20 with both hands, dress rubber gloves 21 and carry out the experiment, start air exhauster 16 simultaneously, the air enters from air inlet 22, filter screen 23 filters the air, the air after the filtration passes through intake pipe 24, inlet port 25 enters into control chamber 3, the harmful gas that the while experiment produced enters into kuppe 5 from control chamber 3, enter into rose box 6 from kuppe 5, harmful gas filters through filter 14, discharge from ventilation pipe 15, when changing filter 14, open the chamber door on rose box 6, rotatory handle 12, handle 12 drives 9 a, The extrusion plate 11 is rotatory to drive threaded rod 9, extrusion plate 11 to the direction removal of keeping away from filter frame 13, thereby will filter frame 13, filter 14 and take off, be convenient for change filter 14, easy operation, it is convenient to change, improves and changes efficiency.

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 understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a biosafety cabinet and purification exhaust device, includes workstation (1), its characterized in that: the improved multifunctional cabinet is characterized in that a supporting plate (2) is fixed at the upper end of the workbench (1), an operation chamber (3) is formed between the workbench (1) and the supporting plate (2), a cabinet body (4) is installed at the upper end of the supporting plate (2), a flow guide cover (5) is installed at the bottom end of the cabinet body (4), a filter box (6) is installed at the upper end of the flow guide cover (5), a fixing plate (7) is installed inside the filter box (6), a threaded hole (8) is formed in the fixing plate (7), a threaded rod (9) is installed in the threaded hole (8) in a threaded manner, a cavity (10) is formed in one side of the threaded hole (8), an extrusion plate (11) is fixed at one end of the threaded rod (9), the extrusion plate (11) is arranged in the cavity (10), a handle (12) is fixed at the other end of the threaded rod (9, install filter (14) between filter frame (13), just the upper end intercommunication of rose box (6) has ventilation pipe (15), the internally mounted of ventilation pipe (15) has air exhauster (16), air inlet (22) are installed on the top of the cabinet body (4), air inlet (22) department installs filter screen (23), the lower extreme of air inlet (22) is connected with intake pipe (24), intake pipe (24) are established in the inside of the cabinet body (4) and backup pad (2), just be equipped with a plurality of inlet port (25) on backup pad (2), inlet port (25) and intake pipe (24) are linked together, just the front end of control chamber (3) is equipped with protective glass (17), spout (18) have been seted up to the front end of the cabinet body (4), protective glass (17) are through slider (19) and spout (18) sliding connection, and an operation hole (20) is formed in the protective glass (17), rubber gloves (21) are installed in the operation hole (20), and the LED lamp (26) is installed at the side end of the supporting plate (2).

2. The biosafety cabinet and purification exhaust device according to claim 1, wherein: the lower extreme of workstation (1) is fixed with supporting leg (27), universal wheel (28) are installed to the lower extreme of supporting leg (27), be equipped with the brake block on universal wheel (28).

3. The biosafety cabinet and purification exhaust device according to claim 1, wherein: the rear side of the cabinet body (4) is provided with a box door of the filter box (6).

4. The biosafety cabinet and purification exhaust device according to claim 1, wherein: the fixing plate (7) is of an L-shaped structure.

5. The biosafety cabinet and purification exhaust device according to claim 1, wherein: the workbench (1) is provided with a groove matched with the protective glass (17), and a rubber sealing ring is installed in the groove.

6. The biosafety cabinet and purification exhaust device according to claim 1, wherein: the filter (14) is provided with two.