CN215785574U

CN215785574U - Novel laboratory biological ventilation cabinet

Info

Publication number: CN215785574U
Application number: CN202121806313.8U
Authority: CN
Inventors: 夏炜炜; 潘芹
Original assignee: Kunshan Xinruiwei Experimental Equipment Co ltd
Current assignee: Kunshan Xinruiwei Experimental Equipment Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-02-11
Anticipated expiration: 2031-08-04

Abstract

The utility model relates to a novel laboratory biological ventilation cabinet, which comprises a cabinet body, wherein a test cavity is arranged on the front side of the upper part of the cabinet body, an air draft cavity is arranged on the rear side in the cabinet body, the air draft cavity is positioned right behind the test cavity, a plurality of air draft holes are arranged on the inner wall of the front side of the air draft cavity in an array penetrating manner, the front sides of the air draft holes are communicated with the inner space of the test cavity, L-shaped baffles are embedded on both sides of the upper part of the cabinet body in a sliding manner, one ends of the L-shaped baffles extend into the test cavity, the rear sides of the L-shaped baffles are abutted against the inner wall of the rear side of the test cavity, an air draft device is fixedly arranged at the top end of the cabinet body, and an air draft pipe is fixedly connected with the air draft end of the air draft device, so that the novel laboratory biological ventilation cabinet has a simple structure and convenient use, can effectively improve the air draft effect of the ventilation cabinet, and can effectively filter gas generated during experiments, thereby avoiding air pollution.

Description

Novel laboratory biological ventilation cabinet

Technical Field

The utility model relates to a novel biological fume hood for a laboratory, and belongs to the technical field of fume hoods.

Background

The cabinet type exhaust hood is commonly called as a ventilation hood, is similar to a closed hood, a small part paint spraying cabinet and a chemical laboratory ventilation hood are typical structures of the cabinet type exhaust hood, one side surface of a large-scale chamber type ventilation hood is completely open, an operator works in the cabinet, the large-scale chamber type ventilation hood is mainly used for large part paint spraying, powder bagging, biological experiments and the like, a working opening of the ventilation hood has great influence on air flow distribution in the cabinet, and the air flow distribution directly influences the working effect of the cabinet type exhaust hood.

The fume chamber is used in current laboratory sets up the suction hood mostly on cabinet body top to take out and discharge the gas in the experimental cavity, but in order not to influence the experimental space, the higher that general suction hood set up, thereby reduced the effect of convulsions, and then probably lead to gaseous leakage, if the gas in the exhaust device does not discharge completely simultaneously, the phenomenon that produces gas reflux easily takes place, and gaseous direct emission can cause the pollution to the air.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel biological fume hood for a laboratory, which is simple in structure and convenient to use, can effectively improve the air draft effect of the fume hood, and can effectively filter gas generated in an experiment so as to avoid air pollution and solve the problems in the background art.

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

a novel biological ventilation cabinet for a laboratory comprises a cabinet body, wherein a test cavity is arranged on the front side of the upper part of the cabinet body, an air draft cavity is arranged on the rear side in the cabinet body, the air draft cavity is positioned right behind the test cavity, a plurality of air draft holes are formed in the front inner wall of the air draft cavity in an array penetrating manner, the front sides of the air draft holes are communicated with the inner space of the test cavity, L-shaped baffles are embedded on the two sides of the upper part of the cabinet body in a sliding manner, one ends of the L-shaped baffles extend into the test cavity, the rear sides of the L-shaped baffles are abutted against the rear inner wall of the test cavity, an air draft device is fixedly arranged at the top end of the cabinet body, an air draft pipe is fixedly connected with the air draft end of the air draft device, the other end of the air draft pipe extends into the air draft cavity, and an exhaust pipe is fixedly connected with the exhaust end of the air draft device, an active carbon filter screen, a deodorization filter screen and a dust filter screen are fixedly arranged in the air draft cavity from back to front.

Further, holding tank one has been seted up to the front side middle part symmetry of the cabinet body, it is equipped with the drawer all to slide in the holding tank one, a plurality of holding tanks two have been seted up to the front side lower part array of the cabinet body, the front side of holding tank two all articulates there is the door body.

Further, the bottom four corners department of the cabinet body all fixedly is equipped with the stabilizer blade, the front side slip of experimental cavity inlays and is equipped with the transparent glass door.

Further, the upper portion both sides of the cabinet body are the fixed cylinder that is equipped with of symmetry, the output of cylinder all with adjacent L type baffle fixed connection.

Furthermore, a sealing ring is arranged between the L-shaped baffle and the cabinet body.

Furthermore, the active carbon filter screen, the deodorization filter screen and the dust filter screen are all positioned on the front side of the exhaust pipe.

The utility model has the beneficial effects that:

the air purifier is provided with the L-shaped baffle, when in use, the L-shaped baffle can be pushed to move backwards through the air cylinder, so that the air draft hole is exposed, the air draft device works to draft air of the air draft cavity through the air draft pipe, so that negative pressure is formed in the air draft cavity, and the space in the experiment cavity is drafted through the air draft hole, after the air purifier is used, the air cylinder drives the L-shaped baffle to reset, so that the air draft hole can be shielded, the phenomenon that the gas which is not completely discharged flows back is avoided, through the arrangement of the dust filtering net, the deodorizing filter screen and the active carbon filter screen, when the air in the experiment cavity enters the air draft cavity, the air is filtered through the dust filtering net, the deodorizing filter screen and the active carbon filter screen, and then is discharged through the air exhaust pipe, so that the gas generated in the experiment is effectively prevented from being directly discharged into the air, the novel ventilating hood is simple in structure and convenient to use, the air draft effect of the ventilating hood can be effectively improved, and meanwhile, gas generated in the experiment can be effectively filtered, so that air pollution is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model without limiting the utility model.

FIG. 1 is a first front view of a novel laboratory biological fume hood of the present invention;

FIG. 2 is a second front view of the novel laboratory biological fume hood of the present invention;

FIG. 3 is a side sectional view of a novel laboratory biological fume hood of the present invention;

reference numbers in the figures: 1. a cabinet body; 2. a test cavity; 3. an air draft cavity; 4. a suction hole; 5. an L-shaped baffle plate; 6. an air draft device; 7. an exhaust pipe; 8. an exhaust duct; 9. an activated carbon filter screen; 10. deodorizing the filter screen; 11. a dust filter screen; 12. a first accommodating groove; 13. a drawer; 14. a second accommodating groove; 15. a door body; 16. and a cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a novel laboratory biological ventilation cabinet comprises a cabinet body 1, wherein a test cavity 2 is arranged on the front side of the upper part of the cabinet body 1, an air draft cavity 3 is arranged on the rear side in the cabinet body 1, the air draft cavity 3 is positioned right behind the test cavity 2, a plurality of air draft holes 4 are arranged on the inner wall of the front side of the air draft cavity 3 in an array penetrating manner, the front sides of the air draft holes 4 are communicated with the inner space of the test cavity 2, L-shaped baffles 5 are embedded on the two sides of the upper part of the cabinet body 1 in a sliding manner, one end of each L-shaped baffle 5 extends into the test cavity 2, the rear sides of the L-shaped baffles 5 are abutted against the inner wall of the rear side of the test cavity 2, an air draft device 6 is fixedly arranged at the top end of the cabinet body 1, an air draft pipe 7 is fixedly connected with the air draft end of the air draft device 6, and the other end of the air draft pipe 7 extends into the air draft cavity 3, the exhaust device 6 is characterized in that an exhaust pipe 8 is fixedly connected to the exhaust end of the exhaust device, and an activated carbon filter screen 9, a deodorization filter screen 10 and a dust filter screen 11 are fixedly arranged in the exhaust cavity 3 from back to front.

Specifically, as shown in fig. 1-3, holding tank one 12 has been seted up to the front side middle part symmetry of the cabinet body 1, equal slip is equipped with drawer 13 in the holding tank one 12, a plurality of holding tanks two 14 have been seted up to the front side lower part array of the cabinet body 1, the front side of holding tank two 14 all articulates there is the door body 15, the bottom four corners department of the cabinet body 1 all fixes and is equipped with the stabilizer blade, the slip of the front side of experimental cavity 2 is inlayed and is equipped with the clear glass door.

Specifically, as shown in fig. 1-3, the two sides of the upper portion of the cabinet body 1 are symmetrically and fixedly provided with air cylinders 16, the output ends of the air cylinders 16 are fixedly connected with the adjacent L-shaped baffle, a sealing ring is arranged between the L-shaped baffle 5 and the cabinet body 1, the activated carbon filter screen 9, the deodorizing filter screen 10 and the dust filter screen 11 are all located at the front side of the exhaust pipe 7, the L-shaped baffle 5 can be pushed to move back by the air cylinders 16, so that the exhaust holes 4 are exposed, at the moment, the exhaust device 6 works to exhaust the air of the exhaust pipe 7 to the exhaust cavity 3, so that negative pressure is formed in the exhaust cavity 3, so that the space in the experiment cavity 2 is exhausted by the exhaust holes 4, when the air in the experiment cavity 2 enters the exhaust cavity 3, the air is filtered by the dust filter screen 11, the deodorizing filter screen 10 and the activated carbon filter screen 9, then discharging through exhaust pipe 8 to the gas that produces when effectual avoiding the experiment directly discharges to the air in, and then leads to air pollution's phenomenon to take place, uses the completion back, and the cylinder drives L type baffle 5 and resets, thereby can shelter from aspirating hole 4, and then avoids not discharging the phenomenon emergence of complete gas emergence backward flow.

The working principle of the utility model is as follows: when in use, the L-shaped baffle 5 can be pushed to move back to back through the air cylinder 16, so that the air suction hole 4 is exposed, at the moment, the air suction device 6 works to suck air from the air suction cavity 3 through the air suction pipe 7 by the air suction device 6, thereby forming negative pressure in the air draft cavity 3, exhausting air in the space of the experiment cavity 2 through the air draft holes 4, when the air in the experimental cavity 2 enters the air draft cavity 3, the air is filtered by the dust filtering net 11, the deodorizing filter screen 10 and the active carbon filter screen 9, then the gas is discharged through the exhaust pipe 8, thereby effectively avoiding the gas generated in the experiment from being directly discharged into the air, thereby causing air pollution, after the use, the air cylinder drives the L-shaped baffle 5 to reset, therefore, the air suction hole 4 can be shielded, and the phenomenon that the gas which is not completely discharged flows back is avoided.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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 a novel laboratory is with biological fume chamber, includes the cabinet body (1), its characterized in that: the testing cabinet is characterized in that a testing cavity (2) is arranged on the front side of the upper portion of the cabinet body (1), an air draft cavity (3) is arranged on the rear side in the cabinet body (1), the air draft cavity (3) is located right behind the testing cavity (2), a plurality of air draft holes (4) are formed in the inner wall of the front side of the air draft cavity (3) in a penetrating mode, the front sides of the air draft holes (4) are communicated with the inner space of the testing cavity (2), L-shaped baffles (5) are embedded in the two sides of the upper portion of the cabinet body (1) in a sliding mode, one ends of the L-shaped baffles (5) extend into the testing cavity (2), the rear sides of the L-shaped baffles (5) are abutted against the inner wall of the rear side of the testing cavity (2), an air draft device (6) is fixedly arranged at the top end of the cabinet body (1), and an air draft pipe (7) is fixedly connected with the end of the air draft device (6), the other end of exhaust column (7) extends to in convulsions cavity (3), the end fixedly connected with exhaust pipe (8) of airing exhaust of updraft ventilator (6), by fixed activated carbon filter screen (9), deodorization filter screen (10) and dirt filtrating net (11) of being equipped with forward after in convulsions cavity (3).

2. A novel laboratory biological fume hood as claimed in claim 1, wherein: holding tank one (12) have been seted up to the front side middle part symmetry of the cabinet body (1), equal slip is equipped with drawer (13) in holding tank one (12), a plurality of holding tanks two (14) have been seted up to the front side lower part array of the cabinet body (1), the front side of holding tank two (14) all articulates there is the door body (15).

3. A novel laboratory biological fume hood as claimed in claim 1, wherein: the bottom four corners department of the cabinet body (1) all fixedly is equipped with the stabilizer blade, the front side sliding embedding of experimental cavity (2) is equipped with the transparent glass door.

4. A novel laboratory biological fume hood as claimed in claim 1, wherein: the cabinet is characterized in that air cylinders (16) are symmetrically and fixedly arranged on two sides of the upper portion of the cabinet body (1), and the output ends of the air cylinders (16) are fixedly connected with the adjacent L-shaped baffle plates (5).

5. A novel laboratory biological fume hood as claimed in claim 1, wherein: a sealing ring is arranged between the L-shaped baffle (5) and the cabinet body (1).

6. A novel laboratory biological fume hood as claimed in claim 1, wherein: the activated carbon filter screen (9), the deodorization filter screen (10) and the dust filter screen (11) are all located on the front side of the exhaust pipe (7).