CN219944046U

CN219944046U - Fume chamber is used in laboratory

Info

Publication number: CN219944046U
Application number: CN202321509875.5U
Authority: CN
Inventors: 桂仁斌; 刘小侠; 李述腾; 李雪婷
Original assignee: Shanghai Jianran Laboratory Equipment Co ltd
Current assignee: Shanghai Jianran Laboratory Equipment Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2023-11-03
Anticipated expiration: 2033-06-14

Abstract

The utility model relates to a ventilation cabinet for a laboratory, which relates to the technical field of ventilation cabinets and comprises a cabinet body and an exhaust fan arranged on the cabinet body, wherein a cleaning mechanism for cleaning toxic and harmful gases entering the exhaust fan is arranged on the cabinet body. According to the ventilation cabinet for the laboratory, disclosed by the utility model, the exhaust fan arranged on the cabinet body is started to suck air outwards, and toxic and harmful gases are adsorbed and filtered when passing through the activated carbon plate on the cleaning mechanism, so that the clean gases converted from the toxic and harmful gases after being adsorbed and filtered are discharged outwards, and the pollution to the environment is reduced.

Description

Fume chamber is used in laboratory

Technical Field

The utility model relates to the technical field of fume hoods, in particular to a fume hood for a laboratory.

Background

A laboratory fume hood is an integral part of laboratory research testing activities. In order to protect laboratory staff from inhaling or swallowing some toxic, pathogenic or unidentified chemicals and organisms, laboratory fume hoods should have good ventilation properties.

In the related art, reference may be made to the chinese patent with the grant publication number CN210450241U, which discloses a ventilation cabinet for laboratory, comprising a cabinet body and a workbench, wherein the top of the cabinet body is slidably connected with a sliding rod, the inside of the housing is connected with a reciprocating mechanism, one end of the sliding rod, which is arranged in the housing, is connected with the reciprocating mechanism, the side wall of the mounting block is rotatably connected with a screw rod, one end of the screw rod, which is far away from the mounting block, is connected with a transmission assembly, the screw rod is positioned on the rod wall between the transmission assembly and the mounting block, an exhaust fan is in threaded connection with an air pipe, and a telescopic rod is connected between the side wall of the exhaust fan and the side wall of the mounting block; the reciprocating mechanism works to drive the exhaust fan to move up and down in the cabinet body, the transmission assembly drives the screw rod to rotate, so that the exhaust fan which is in threaded connection with the screw rod can also move left and right, the exhaust fan can reciprocate up and down and left and right in the cabinet body to exhaust air, and the exhaust efficiency of the device is improved.

During working, the laboratory fume hood exhausts toxic and harmful gases from the fume hood operation table or the fume hood body through the exhaust device, and the toxic and harmful gases are directly discharged into the air, so that the environment is polluted.

Disclosure of Invention

In order to reduce pollution to the environment, the utility model provides a ventilation cabinet for a laboratory.

The utility model provides a ventilation cabinet for a laboratory, which adopts the following technical scheme:

the utility model provides a fume chamber for laboratory, includes the cabinet body, sets up the exhaust fan on the cabinet body, be provided with on the cabinet body and clear away the clearance mechanism that gets into the poisonous and harmful gas of exhaust fan, clearance mechanism includes:

the cleaning pipe is arranged on the cabinet body and is communicated with the exhaust fan;

the activated carbon plate is detachably arranged on the cleaning pipe and used for removing toxic and harmful gases entering the cleaning pipe.

Through adopting above-mentioned technical scheme, start the exhaust fan that sets up on the cabinet body and outwards breathe in, adsorb the filtration when poisonous and harmful gas passes through the activated carbon board that sets up on the clear away the pipe, adsorb the clean gas that turns into after filtering outward discharge with poisonous and harmful gas, reduce the pollution to the environment that causes.

Optionally, the cleaning tube is detachably provided with a filter screen, and toxic and harmful gas passing through the filter screen is moved to the activated carbon plate for removal.

Through adopting above-mentioned technical scheme, install detachable filter screen on the cleaing away the pipe, when poisonous and harmful gas passes through the filter screen, the filter screen filters interior doped solid particulate matter earlier, reduces the solid particulate matter that moves to the activated carbon board through the filter screen, promotes the activated carbon board and clears away the effect, further reduces the pollution that causes the environment.

Optionally, the cleaning pipe is inserted and installed with a mounting frame, and the filter screen and the activated carbon plate are inserted and installed on the mounting frame.

Through adopting above-mentioned technical scheme, take off the installing frame, then take off filter screen and activated carbon board, then install new filter screen and activated carbon board grafting on the installing frame, install the installing frame grafting on clear away the pipe afterwards to this realizes changing filter screen and activated carbon board, has improved the convenience when changing.

Optionally, a positioning component for positioning the mounting frame is disposed on the mounting frame, and the positioning component includes:

the positioning plate is arranged on the mounting frame and is abutted against the cleaning pipe to position;

the positioning screw rod penetrates through the positioning plate and is in threaded connection with the cleaning pipe.

Through adopting above-mentioned technical scheme, after the installation frame grafting is gone into clear away the pipe, the locating plate that sets up on the installation frame is contradicted and is clear away on the pipe, passes locating plate threaded connection with the locating screw and is fixed a position the installation frame on clear away the pipe afterwards to the stability of installation frame has been improved.

Optionally, a handle convenient to take is arranged on the mounting frame.

Through adopting above-mentioned technical scheme, loosen positioning bolt at the staff, grip to the handle on, pull out the grafting and get into the installing frame of clear away the pipe, the staff changes conveniently.

Optionally, be provided with the collection box on the filter screen, the collection box is used for impurity on the filter screen can drop to the collection box under the action of gravity and collect.

Through adopting above-mentioned technical scheme, the filter screen in use, the impurity that the filter screen blockked drops to collect in the box under the action of gravity, has improved the convenience when impurity clearance on the filter screen.

Optionally, be provided with the air-supply line with exhaust fan intercommunication on the cabinet body, clear away the pipe and slide and set up on the air-supply line, be provided with the drive on the cabinet body and clear away the lifting unit that the pipe goes up and down.

Through adopting above-mentioned technical scheme, lifting unit starts to drive and clears away the pipe and remove to this adjusts the position of clearing away the pipe, thereby realizes that it need highly to clear away the pipe when taking out poisonous and harmful gas to realize adjusting, has improved the clearance effect to poisonous and harmful gas, has reduced the pollution to the environment causes.

Optionally, the lifting assembly includes:

the lifting screw is rotatably arranged on the cabinet body and is in threaded connection with the cleaning pipe;

and the lifting motor is arranged on the cabinet body and connected with the lifting screw.

Through adopting above-mentioned technical scheme, elevator motor starts drive elevator screw and rotates, and elevator screw rotates and drives the pipe that clears away and reciprocate to realize the lift removal of whole clearance mechanism.

In summary, the present utility model includes at least one of the following beneficial technical effects: through the filtration purification of clear mechanism, clear away the activated carbon board on the pipe and clean the poisonous and harmful gas that the experimental process produced, outwards discharge clean gas, reduce pollution and protect the environment.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of a lifting assembly according to the present utility model;

FIG. 3 is an exploded view of a portion of the structure of the purging mechanism of the present utility model;

reference numerals: 1. a cabinet body; 11. an exhaust fan; 12. an operation table; 2. a cleaning mechanism; 21. removing the pipe; 22. a mounting frame; 23. an air outlet pipe; 24. a filter screen; 25. an activated carbon sheet; 27. a plug-in groove; 28. a collection box; 3. a positioning assembly; 31. a positioning plate; 32. positioning a screw; 35. a handle; 36. an air inlet hole; 4. a lifting assembly; 41. lifting screw rods; 42. a lifting motor; 43. a lifting block; 5. an air inlet pipe.

Detailed Description

The utility model will be described in further detail below with reference to the accompanying drawings 1-3.

The embodiment of the utility model discloses a ventilation cabinet for a laboratory.

Referring to fig. 1, a ventilation cabinet for laboratory comprises a cabinet body 1, an operation table 12 fixedly arranged on the cabinet body 1, an exhaust fan 11 arranged on the upper surface of the cabinet body 1, a cleaning mechanism 2 arranged on the cabinet body 1, and experimental articles placed on the operation table 12.

Referring to fig. 2 and 3, the cleaning mechanism 2 comprises a cleaning tube 21 and an activated carbon plate 25, wherein the cleaning tube 21 is vertically slidably arranged on the side wall of the cabinet body 1 and is positioned above the operating table 12, meanwhile, the cleaning tube 21 is of a cuboid structure in a horizontal state, the length direction of the cleaning tube 21 is parallel to the length direction of the cabinet body 1, one side of the cleaning tube 21, which is close to an experimental product, is in an opening state, a vertical air outlet pipe 23 is fixedly arranged on the upper surface of the cleaning tube 21, and the air outlet pipe 23 is communicated with the exhaust fan 11; the mounting frame 22 is inserted and mounted at the opening of the cleaning pipe 21, the positioning assembly 3 for positioning the mounting frame 22 is arranged on the mounting frame 22, the positioning assembly 3 comprises a positioning plate 31 and a positioning screw rod 32, the positioning plate 31 is fixedly mounted on the side wall of the mounting frame 22, and the positioning plate 31 is abutted against the mounting frame 22 for positioning; the positioning screw 32 is screwed through the positioning plate 31 and screwed to the purge tube 21, thereby positioning the mounting frame 22.

Referring to fig. 2 and 3, the length direction of the installation frame 22 is parallel to the length direction of the cleaning tube 21, two ends of the installation frame 22 are in an open state, two ends of the installation frame 22 are provided with inserting grooves 27 along the length direction of the installation frame 22, and the inserting grooves 27 are arranged at intervals along the length direction of the vertical installation frame 22; the side wall of the installation frame 22, which is close to one side of the experimental article, is uniformly provided with a plurality of air inlets 36, handles 35 are fixedly arranged on the side wall of the installation frame 22, which is close to one side of the experimental article, and are positioned on both sides of the air inlets 36, the handles 35 are used for taking down and installing the installation frame 22, the activated carbon plate 25 is inserted and installed on one of the inserting grooves 27, the filter screen 24 is inserted and installed on the other inserting groove 27, the filter screen 24 is positioned on one side of the installation frame 22, which is close to the air inlets 36, and meanwhile, a collecting box 28 is fixedly arranged on one side of the filter screen 24, which is close to the air inlets 36, and the collecting box 28 is used for collecting the impurities falling down from the filter screen 24; the poisonous and harmful gas passes through the air inlet hole 36, the filter screen 24 and the activated carbon plate 25 in sequence under the action of the exhaust fan 11, the filter screen 24 filters the gas, the filtered impurities are gathered together and then fall into the collection box 28 under the action of gravity, the activated carbon plate 25 removes the filtered poisonous gas, and the clean gas after removal is discharged through the air outlet pipe 23.

Referring to fig. 1 and 2, a lifting assembly 4 for driving a cleaning pipe 21 to move up and down is arranged on a cabinet body 1, two air outlet pipes 23 are arranged at two ends of the cleaning pipe 21, two exhaust fans 11 are arranged, two air inlet pipes 5 which are in one-to-one correspondence with the two air outlet pipes 23 are fixedly arranged on the two exhaust fans 11, and the air inlet pipes 5 are slidably sleeved on the air outlet pipes 23; the lifting blocks 43 are fixedly installed on two ends of the cleaning pipe 21, the lifting assembly 4 is correspondingly arranged with one lifting block 43, the lifting assembly 4 comprises a lifting screw 41 and a lifting motor 42, the lifting screw 41 is rotatably installed on the cabinet body 1, the lifting screw 41 is in a vertical state and is in threaded connection with the lifting blocks 43, the lifting motor 42 is fixedly installed on the upper surface of the cabinet body 1, and the lifting motor 42 is connected with the lifting screw 41 after outputting an shaft.

The working principle of the embodiment of the utility model is as follows: the exhaust fan 11 is started, the lifting motor 42 is started to adjust the height of the cleaning pipe 21 to properly extract the requirements of different heights of the toxic and harmful gases, the toxic and harmful gases sequentially pass through the air inlet hole 36, the filter screen 24 and the activated carbon plate 25, and finally the gases are discharged through the air outlet pipe 23 by the air inlet pipe, so that the toxic and harmful gases are filtered and removed, and the pollution to the environment is reduced.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a fume chamber for laboratory, includes cabinet body (1), sets up exhaust fan (11) on cabinet body (1), its characterized in that, be provided with on cabinet body (1) and clear away mechanism (2) that harmful gas that gets into exhaust fan (11) was clear away, clear away mechanism (2) include:

the cleaning pipe (21) is arranged on the cabinet body (1) and is communicated with the exhaust fan (11);

and the activated carbon plate (25) is detachably arranged on the cleaning tube (21) and is used for removing toxic and harmful gases entering the cleaning tube (21).

2. A laboratory fume hood according to claim 1, wherein: a filter screen (24) is detachably arranged on the cleaning pipe (21), and toxic and harmful gases passing through the filter screen (24) are moved to an activated carbon plate (25) for removal.

3. A laboratory fume hood according to claim 2, wherein: the cleaning pipe (21) is inserted and installed with an installation frame (22), and the filter screen (24) and the activated carbon plate (25) are inserted and installed on the installation frame (22).

4. A laboratory fume hood according to claim 3, wherein: the mounting frame (22) is provided with a positioning component (3) for positioning the mounting frame (22), and the positioning component (3) comprises:

the positioning plate (31) is arranged on the mounting frame (22) and is abutted against the cleaning pipe (21) for positioning;

and the positioning screw rod (32) penetrates through the positioning plate (31) and is in threaded connection with the cleaning pipe (21).

5. A laboratory fume hood according to claim 3, wherein: the mounting frame (22) is provided with a handle (35) which is convenient to take.

6. A laboratory fume hood according to claim 2, wherein: the filter screen (24) is provided with a collecting box (28) for collecting impurities falling on the filter screen (24).

7. A laboratory fume hood according to claim 1, wherein: the novel multifunctional kitchen cabinet is characterized in that an air inlet pipe (5) communicated with an exhaust fan (11) is arranged on the cabinet body (1), the cleaning pipe (21) is arranged on the air inlet pipe (5) in a sliding mode, and a lifting assembly (4) for driving the cleaning pipe (21) to lift is arranged on the cabinet body (1).

8. A laboratory fume hood according to claim 7, wherein: the lifting assembly (4) comprises:

the lifting screw (41) is rotatably arranged on the cabinet body (1) and is in threaded connection with the cleaning pipe (21);

and the lifting motor (42) is arranged on the cabinet body (1) and is connected with the lifting screw (41).