CN215139986U

CN215139986U - Biological safety cabinet

Info

Publication number: CN215139986U
Application number: CN202120903722.3U
Authority: CN
Inventors: 周海英; 张燕
Original assignee: Zhejiang Polar Detection Technology Co ltd
Current assignee: Zhejiang Polar Detection Technology Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-12-14
Anticipated expiration: 2031-04-28

Abstract

The utility model relates to a biosafety cabinet, including the cabinet body, take motor exhaust fan, be provided with the operation chamber on the cabinet body, the chamber wall that operation chamber position height is the minimum is the operation panel, be provided with the glass cabinet door on the cabinet body, the operation panel below is provided with and connects the cistern, connect and form the waste liquid chamber between cistern and the operation panel, it has a plurality of weeping holes with operation chamber and waste liquid chamber intercommunication to distribute on the operation panel, connect and be connected with the waste liquid pipe that is used for being connected with the waste liquid bucket on the cistern, waste liquid pipe and waste liquid chamber intercommunication. The operating platform is convenient to clean by arranging the liquid leakage hole, the liquid receiving groove and the waste liquid pipe; the operation table can be conveniently and rapidly cleaned by arranging the flushing device; through setting up belt cleaning device, make and connect the cistern can convenient, timely clearance.

Description

Biological safety cabinet

Technical Field

The application relates to the field of experimental operation auxiliary equipment, in particular to a biological safety cabinet.

Background

The biological safety cabinet is a box-shaped air purification negative pressure safety device which can prevent aerosol from dissipating when some dangerous or unknown biological particles are contained in the experimental operation and treatment process. The protective screen is widely applied to scientific research, teaching, clinical examination and production in the fields of microbiology, biomedicine, genetic engineering, biological products and the like, and is the most basic safety protective equipment in the primary protective screen in the biological safety of laboratories.

The utility model discloses a utility model patent that the publication number is CN205599181U provides a clean space cabinet for biochemical experiment operation comprises inlet fan, air purification membrane, glass cabinet door, glass cabinet door handle, experiment operation panel, air current grid, exhaust fan, button switch. The air purification cabinet is structurally characterized in that an air inlet fan with a motor is mounted at the top of a cabinet body, an air purification membrane is mounted at the upper part of the cabinet body, a glass cabinet door provided with a glass cabinet door handle is mounted in front of the cabinet body, an experiment operating platform with an airflow grid is mounted below the glass cabinet door and at the lower part of the cabinet body, a button switch is mounted on the front side of the cabinet body, and an exhaust fan with a fan is mounted on one side of the bottom of the cabinet body.

To the correlation technique among the above-mentioned, the inventor thinks that when liquid spills on the laboratory operation platform carelessly in the experimentation, need clean the clearance through the rag, when liquid is too much, leads to needing to wash the rag many times and clean to the messenger cleans inconveniently, leads to the laboratory operation platform to clean inconveniently.

SUMMERY OF THE UTILITY MODEL

In order to facilitate cleaning of the operating table, the application provides a biosafety cabinet.

The application provides a biological safety cabinet adopts following technical scheme:

the utility model provides a biosafety cabinet, includes the cabinet body, takes motor exhaust fan, be provided with the operation chamber on the cabinet body, the chamber wall that operation chamber position height is the minimum is the operation panel, be provided with the glass cabinet door on the cabinet body, the operation panel below is provided with and connects the cistern, connect and form the waste liquid chamber between cistern and the operation panel, it has a plurality of weeping holes with operation chamber and waste liquid chamber intercommunication to distribute on the operation panel, connect and be connected with the waste liquid pipe that is used for being connected with the waste liquid bucket on the cistern, waste liquid pipe and waste liquid chamber intercommunication.

Through adopting above-mentioned technical scheme, when this biosafety cabinet used, the experimenter just tested in the top of weeping hole on the operation panel, and the experiment liquid jar is placed on the operation panel, if the condition that spills appears in liquid when the experiment, and the experimenter only need adopt the rag to clean liquid to weeping hole department, makes liquid get into the waste liquid intracavity to keep clean on making the operation panel. Even if a large amount of liquid is poured onto the operation table, the experiment personnel only need to wipe for 1-2 times to clean the operation table, so that the operation table is convenient to clean. The liquid enters the waste liquid cavity and then enters the waste liquid barrel along the liquid receiving groove and the waste liquid pipe, and the waste liquid in the waste liquid barrel can be treated in a centralized manner, so that the environment is protected.

The exhaust fan with the motor is used for keeping the negative pressure state in the operation cavity, so that waste gas generated in the experimental process is timely exhausted outdoors, and the indoor air is kept clean. When experimenter carries out the experiment operation, can open the glass cabinet door and just supply the hand to pass to the crack, further prevent that the gaseous difficult operation intracavity of following of experiment in-process from getting into indoorly.

Optionally, the washing device is used for washing the operation panel, the washing device comprises a first connecting pipe used for connecting a water source and a washing nozzle communicated with the first connecting pipe, a first control valve is arranged on the first connecting pipe, and a placing frame for placing the washing nozzle is arranged on the cabinet body.

Through adopting above-mentioned technical scheme, when corrosive liquids spills, be unsuitable to adopt the rag to wipe. First connecting pipe is flexible, and the experimenter can directly take off the back with high pressure nozzle from the rack, opens first control valve, and the liquid spray that will wash shower nozzle aligns washes, makes to spill the liquid and get into the waste liquid chamber from the weeping hole after being diluted by water, and the flow connection groove, waste liquid pipe entering waste liquid bucket pending are crossed. Through setting up washing unit, can conveniently wash rapidly after making liquid spill, make the continuation that the experimenter can be quick get back to going on of experiment.

Optionally, the cleaning device is used for cleaning the liquid receiving tank, and comprises a second connecting pipe used for connecting a water source and a plurality of high-pressure nozzles communicated with the second connecting pipe and facing the tank wall of the liquid receiving tank, wherein a second control valve is arranged on the second connecting pipe.

By adopting the technical scheme, when less liquid drops on the liquid receiving tank, the liquid is not easy to enter the liquid receiving pipe, and the high-pressure spray head is enabled to spray water and then clean the liquid receiving tank by opening the second control valve. The liquid is flushed into the waste liquid barrel, so that the liquid receiving tank is convenient to clean, good timeliness is achieved, the liquid can be cleaned immediately, the liquid is prevented from drying on the liquid receiving tank, and the later cleaning difficulty is improved.

Optionally, the operation mouth has been seted up on the glass cabinet door, be provided with the elastic locking piece in the operation mouth, the circumference setting of operation mouthful inner wall is followed to the elastic locking piece, the sealed setting of inner wall of elastic locking piece and operation mouth, be provided with the locking mouth that supplies the hand to pass on the elastic locking piece.

Through adopting above-mentioned technical scheme, when the experimenter tested, closed the glass cabinet door completely, passed the locking mouth through the hand and got into the experiment, had certain elasticity because of the elastic locking piece, made operating personnel can the free activity in the operation mouth. Through setting up operation mouth, elastic locking piece, improve the leakproofness of operation chamber in the experimentation, further prevent that waste gas, irritability gas in the experiment from being inhaled by the experimenter, improve the security of experiment.

Optionally, the rack sets up in the inner wall of operation chamber, be provided with the first connecting hole that supplies first connecting pipe to pass on the cabinet body.

Through adopting above-mentioned technical scheme, set up the rack on the inner wall of operation chamber, the washing terminals is located the operation intracavity promptly, makes the experimenter hand stretch into from the locking mouth and when having liquid to spill in experimenting, conveniently directly takes the washing terminals and washes the operation panel, makes the experimenter need not to take out the washing terminals of taking from the locking mouth with the hand, makes the experimenter take the washing terminals convenient. And the glass cabinet door is closed to clean the operation table, so that the clothes of the experimenters are not easily wetted by water.

Optionally, the glass cabinet door is inclined downwards in a direction away from the operation chamber when closed.

Through adopting above-mentioned technical scheme, with the glass cabinet door towards the direction downward sloping setting of keeping away from the operation chamber, make the glass cabinet door be difficult for hindering the experimenter to carry out the experiment, and the mode that sets up of slope makes the experimenter can be close to the experiment of hand more, makes the experimenter conveniently observe the experiment.

Optionally, the middle part of the operating platform protrudes upwards to form a boss, and the liquid leakage holes are distributed along the circumferential direction of the boss.

By adopting the technical scheme, a plurality of smaller articles such as a dropper, a capillary tube and the like exist in the experimental article, the boss is arranged in a solid manner, and the liquid leakage holes are arranged along the circumferential direction of the boss, so that the smaller experimental article can be conveniently placed on the boss.

Optionally, an ultraviolet germicidal lamp is arranged on the inner wall of the operation cavity.

By adopting the technical scheme, the ultraviolet sterilizing lamp can be started to sterilize in part of experiments with higher experimental environment cleanliness, and the experiments can be simultaneously carried out under the irradiation of ultraviolet light, so that the influence of microorganisms on the experiments is smaller.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the operating platform is convenient to clean by arranging the liquid leakage hole, the liquid receiving groove and the waste liquid pipe;

2. the operation table can be conveniently and rapidly cleaned by arranging the flushing device;

3. through setting up belt cleaning device, make and connect the cistern can convenient, timely clearance.

Drawings

Fig. 1 is an overall schematic diagram of an embodiment of the present application.

Fig. 2 is a sectional view of the embodiment.

Description of reference numerals: 1. a cabinet body; 11. an operating chamber; 111. a boss; 112. a weep hole; 12. an operation table; 13. a liquid receiving tank; 131. a waste fluid chamber; 132. a waste liquid pipe; 2. an exhaust fan with a motor; 21. an exhaust pipe; 3. an ultraviolet germicidal lamp; 4. a flushing device; 41. a first connecting pipe; 42. washing the spray head; 43. a first control valve; 44. placing a rack; 45. a first connection hole; 5. a cleaning device; 51. a second connecting pipe; 511. a branch pipe; 52. a high pressure spray head; 53. a second control valve; 54. a second connection hole; 6. a glass cabinet door; 61. a chute; 62. an operation port; 7. an elastic locking member; 71. an elastic transparent sheet; 711. a locking port; 72. and (4) rubber bands.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a biological safety cabinet. Referring to fig. 1 and 2, the biosafety cabinet comprises a cabinet body 1 and an exhaust fan 2 with a motor. The cabinet body 1 is provided with an operation cavity 11 for experimental operation of experimenters, and the cavity wall with the lowest height of the operation cavity 11 is an operation table 12. The top of the cabinet body 1 is connected with an exhaust pipe 21 communicated with the operation cavity 11, the exhaust pipe 21 is communicated with the outside of the cabinet, the exhaust fan 2 with the motor is installed on the top wall of the operation cavity 11, and air in the operation cavity 11 is driven by the exhaust fan 2 with the motor to flow to the exhaust pipe 21.

The ultraviolet germicidal lamp 3 is fixed on the top wall of the operation cavity 11, so that the operation cavity 11 is convenient to sterilize.

The middle part of the operating platform 12 protrudes upwards to form a boss 111, the top surface of the boss 111 is a horizontal plane, and the boss 111 is used for placing experimental articles.

The bottom of the operation table 12 is provided with a liquid receiving tank 13, and the liquid receiving tank 13 is fixed on the cabinet 1. The inner cavity of the liquid receiving tank 13 is a waste liquid cavity 131, and the waste liquid cavity 131 is located between the operation table 12 and the liquid receiving tank 13. The operation table 12 is distributed with liquid leakage holes 112, the operation cavity 11 is communicated with the waste liquid cavity 131 through the liquid leakage holes 112, the liquid leakage holes 112 are distributed along the circumferential direction of the boss 111, and the position height of the liquid leakage holes 112 is lower than the top surface of the boss 111.

A waste liquid pipe 132 is connected to the bottom of the liquid receiving tank 13, and the end of the waste liquid pipe 132 far away from the liquid receiving tank 13 is used for communicating with a waste liquid barrel.

The biosafety cabinet further comprises a washing device 4 for washing the operation table 12, wherein the washing device 4 comprises a first connecting pipe 41 for connecting a water source, and a washing spray head 42, the washing spray head 42 is connected to one end of the first connecting pipe 41 far away from the water source, and the water source is a faucet for keeping a water outlet state. The first connection pipe 41 is a flexible corrugated pipe, which facilitates the bending of the first connection pipe 41, and the shower head 42 is a shower head.

Be connected with the first control valve 43 that is used for controlling the circulation of water on the first connecting pipe 41, be fixed with the rack 44 that supplies washing terminals 42 to place on the operation chamber 11 inner wall, set up the first connecting hole 45 that supplies first connecting pipe 41 to pass on the cabinet body 1 lateral wall, first connecting hole 45 runs through the lateral wall and the operation chamber 11 intercommunication of the cabinet body 1, and first control valve 43 is located operation chamber 11.

The biological safety cabinet further comprises a cleaning device 5 for cleaning the liquid receiving tank 13, the cleaning device 5 comprises a second connecting pipe 51 for communicating with a water source, and a high-pressure spray head 52 connected to one end of the second connecting pipe 51 far away from the water source, and the water source is a faucet for keeping a water outlet state. A second control valve 53 for controlling the flow of water is connected to the second connection pipe 51, and the second control valve 53 is located outside the waste liquid chamber 131.

Connect and offer the second connecting hole 54 that supplies second connecting pipe 51 to pass on cistern 13 lateral wall and the cabinet body 1 lateral wall, the tip that second connecting pipe 51 is located waste liquid chamber 131 includes a plurality of branch pipes 511, and branch pipe 511 is fixed in the bottom of operation panel 12, and high pressure nozzle 52 is provided with a plurality ofly, all is connected with a plurality of high pressure nozzle 52 on every branch pipe 511, and high pressure nozzle 52 orientation connects the inner wall of cistern 13.

The glass cabinet door 6 is arranged at the opening of the operation cavity 11 in a sliding mode, the sliding groove 61 for the glass cabinet door 6 to slide into is formed in the cavity wall of the operation cavity 11, and the glass cabinet door 6 is not prone to falling through friction force between the glass cabinet door 6 and the sliding groove 61. The glass cabinet door 6 is inclined downwards away from the operating chamber 11.

Two operation openings 62 are formed in the glass cabinet door 6, an elastic locking member 7 is fixed in the operation opening 62, the elastic locking member 7 comprises an annular elastic transparent sheet 71 and a rubber band 72 fixed along the inner ring of the elastic transparent sheet 71, the elastic transparent sheet 71 is made of an elastic rubber material, the inner ring of the elastic transparent sheet 71 is a locking opening 711, and the outer ring of the elastic transparent sheet 71 is fixed in a gluing and sealing mode along the circumferential direction of the inner wall of the operation opening 62.

The implementation principle of the biological safety cabinet in the embodiment of the application is as follows: when this biological safety cabinet used, the laboratory technician stretched into the operation groove from the check lock 711 with the hand and tested, and experimental articles for use placed on boss 111, and the laboratory technician goes on in weeping hole 112 top when empting liquid, can directly get into from weeping hole 112 after making liquid spill and connect the cistern 13 in, through opening second control valve 53, make high pressure nozzle 52 water spray wash connect cistern 13, make and connect cistern 13 in time to wash. When the operation table 12 needs to be cleaned, the experimenter takes up the washing nozzle 42 to align with the place needing to be washed, and opens the first control valve 43, so that the washing nozzle 42 washes the operation table 12, and the operation table 12 is convenient to clean.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a biosafety cabinet, includes the cabinet body (1), takes motor exhaust fan (2), be provided with operation chamber (11) on the cabinet body (1), the chamber wall that operation chamber (11) position height is the lowest is operation panel (12), be provided with glass cabinet door (6), its characterized in that on the cabinet body (1): the operation panel (12) below is provided with connects cistern (13), connect and form waste liquid chamber (131) between cistern (13) and operation panel (12), it has a plurality of weeping holes (112) with operation chamber (11) and waste liquid chamber (131) intercommunication to distribute on operation panel (12), connect and be connected with waste liquid pipe (132) that are used for being connected with the waste liquid bucket on cistern (13), waste liquid pipe (132) and waste liquid chamber (131) intercommunication.

2. A biosafety cabinet according to claim 1, wherein: still including washing unit (4) that is used for washing operation panel (12), washing unit (4) including be used for connecting first connecting pipe (41) of water source and with washing shower nozzle (42) of first connecting pipe (41) intercommunication, be provided with first control valve (43) on first connecting pipe (41), be provided with on the cabinet body (1) and supply rack (44) that washing shower nozzle (42) were placed.

3. A biosafety cabinet according to claim 2, wherein: the cleaning device (5) is used for cleaning the liquid receiving tank (13), the cleaning device (5) comprises a second connecting pipe (51) used for connecting a water source and a plurality of high-pressure nozzles (52) communicated with the second connecting pipe (51) and facing the tank wall of the liquid receiving tank (13), and a second control valve (53) is arranged on the second connecting pipe (51).

4. A biosafety cabinet according to claim 2, wherein: operation mouth (62) have been seted up on glass cabinet door (6), be provided with elasticity retaining member (7) in operation mouth (62), elasticity retaining member (7) set up along the circumference of operation mouth (62) inner wall, the sealed setting of inner wall of elasticity retaining member (7) and operation mouth (62), be provided with locking mouth (711) that supply the hand to pass on elasticity retaining member (7).

5. A biosafety cabinet according to claim 4, wherein: the rack (44) is arranged on the inner wall of the operation cavity (11), and a first connecting hole (45) for the first connecting pipe (41) to pass through is arranged on the cabinet body (1).

6. A biosafety cabinet according to claim 1, wherein: when the glass cabinet door (6) is closed, the glass cabinet door is inclined downwards towards a direction far away from the operation cavity (11).

7. A biosafety cabinet according to claim 1, wherein: the middle part of the operating platform (12) protrudes upwards to form a boss (111), and the liquid leakage holes (112) are distributed along the circumferential direction of the boss (111).

8. A biosafety cabinet according to claim 1, wherein: an ultraviolet germicidal lamp (3) is arranged on the inner wall of the operation cavity (11).