CN214235513U

CN214235513U - Laboratory fume chamber

Info

Publication number: CN214235513U
Application number: CN202120205367.2U
Authority: CN
Inventors: 焦庆周; 王虹; 崔军丽; 孙正排
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-09-21
Anticipated expiration: 2031-01-26

Abstract

A laboratory ventilation cabinet comprises a ventilation cabinet body, a protection plate, a partition plate, an air guide box body, an air guide pipeline, a first air suction pipeline, a second air suction pipeline, an air suction cover, a threaded rod, a clamping plate, a sealing cushion block, a hand wheel and an operation table; an air draft device is arranged at the upper end inside the fume hood body; the partition plate divides the interior of the fume hood body into two operating spaces; the end surface of one side of the operating platform is connected with the inner wall of the fume hood body, and the end surface of the other side of the operating platform is connected with the partition plate; the lower end surface of the air guide box body is connected with the upper end surface of the operating platform, and the end surfaces on two sides of the air guide box body are respectively connected with the end surfaces on one side of the partition plate and the protection plate; an air inlet port is formed in the end face of one side of the air guide box body; the mouth of pipe of one end and the wind-guiding box body of wind-guiding pipeline are connected, and the mouth of pipe of the other end of wind-guiding pipeline is connected with updraft ventilator on the fume chamber body. The utility model discloses can highly adjust the draught hood, can be quick take away the harmful gas that produces the experiment, equipment structure is simple, convenient operation.

Description

Laboratory fume chamber

Technical Field

The utility model relates to a laboratory paraphernalia technical field especially relates to a laboratory fume chamber.

Background

The fume chamber is an indispensable one in the laboratory furniture, plays the efficiency of airing exhaust and taking a breath in the laboratory, and the structure of fume chamber is upper and lower formula, and its top has the exhaust hole, mountable fan. Toxic gas generated in a laboratory fume hood usually contains particulate matters, and the substances react to form larger dust and smoke particles, so that the visual field is easily blurred. The vent position of current fume chamber can not be adjusted, the harmful gas extraction that produces the experiment that can not be timely, can not protect the experimenter in the experimentation.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a laboratory fume chamber can highly adjust the draught hood through first suction line and second suction line sliding connection, and the harmful gas that produces the experiment that can be quick takes out tak away, equipment structure is simple, convenient operation.

(II) technical scheme

The utility model provides a laboratory ventilation cabinet, which comprises a ventilation cabinet body, a protection plate, a partition plate, a wind guide box body, a wind guide pipeline, a first air suction pipeline, a second air suction pipeline, an air draft cover, a threaded rod, a clamping plate, a sealing cushion block, a hand wheel and an operation table;

an air draft device is arranged at the upper end inside the fume hood body; the partition plate divides the interior of the fume hood body into two operating spaces, and sliding grooves are formed in the end faces of the two sides, far away from each other, of the partition plate; the operation table is installed inside the fume hood body, one side end face of the operation table is connected with the inner wall of the fume hood body, and the other side end face of the operation table is connected with the partition plate; the air guide box body is arranged in the fume hood body, the lower end face of the air guide box body is connected with the upper end face of the operating platform, and the end faces of the two sides of the air guide box body are respectively connected with the end face of one side of the partition plate and the end face of one side of the protection plate, and the end face of one side of the air guide box body, which is far away from the inner wall of the fume hood body, is provided with an air inlet port; a pipe orifice at one end of the air guide pipeline is connected with a ventilation port at the upper end of the air guide box body, and a pipe orifice at the other end of the air guide pipeline is connected with an air draft device at the upper end of the fume hood body;

the upper end pipe orifice of the first air draft pipeline is connected with an air draft device at the upper end of the fume hood body, and the other end of the first air draft pipeline is sleeved outside the second air draft pipeline; the upper end pipe orifice of the second air draft pipeline is connected with the lower end pipe orifice of the first air draft pipeline in a sliding mode, and the lower end pipe orifice of the second air draft pipeline is connected with the upper end port of the air draft cover; the sealing cushion block is positioned between the first air suction pipeline and the second air suction pipeline, the inner peripheral surface of the sealing cushion block is connected with the outer peripheral surface of the second air suction pipeline, and the sealing cushion block is in sliding connection with the first air suction pipeline; one end of the threaded rod is connected with the hand wheel, the other end of the threaded rod extends into the second air suction pipeline, the other end of the threaded rod is connected with one side end face of the clamping plate, and the threaded rod is in threaded connection with the second air suction pipeline; the end face of the clamping plate, which is far away from the second air suction pipeline, compresses the peripheral surface of the first air suction pipeline.

Preferably, the device also comprises a protective frame body, a transparent partition plate and a sliding block;

the upper end of the fume hood body is provided with a placing groove for placing the protection frame body, and the mutually-oriented end surfaces of the protection plate and the partition plate are provided with sliding grooves for being in sliding connection with the protection frame body; the end surfaces of two sides, far away from each other, of the protection frame body are connected with sliding blocks used for sliding into the sliding grooves, and mounting holes used for mounting transparent partition plates are formed in the protection frame body; the transparent partition plate is installed inside the installation hole.

Preferably, the lower end of the protection frame body is provided with a limiting hole for locking the protection frame body.

Preferably, a first filter screen is arranged in the exhaust hood; and a second filter screen for filtering the experimental object is arranged on the end face of the air guide box body where the air inlet port is located.

Preferably, the lower extreme of fume chamber body is equipped with the case of depositing that is used for depositing experimental apparatus.

Preferably, the operation table is provided with a faucet and a cleaning tank for cleaning the experimental device.

Preferably, the end face of the partition board facing the protection board is provided with a lamp strip for illumination.

Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has:

in the utility model, when in use, the hand wheel is rotated according to the height of the experimental equipment to drive the threaded rod to rotate so as to lead the clamping plate to be away from the outer peripheral surface of the second air draft pipeline, and then the height of the second air draft pipeline is adjusted to lead the air inlet port of the air draft cover to be adjusted to be right above the experimental equipment; then the hand wheel is rotated again to press the clamping plate towards the end face of the second air suction pipeline to the second air suction pipeline; finally, opening an air draft device to start an experiment;

in the utility model, the first air draft pipeline and the second air draft pipeline are connected in a sliding way, so that the air draft cover can be conveniently moved above the experimental equipment, harmful gas generated in the experiment can be more quickly extracted and treated in a unified way, and the leakage of the experimental gas can be avoided, thereby causing harm to the body of an experimenter;

in the utility model, the protective frame body, the transparent partition plate and the slide block are matched for use, so that the protective frame body can be conveniently pulled down to isolate the experimental reaction space from the outside during dangerous experimental reaction, and dangerous accidents caused by the experiment can be avoided; the use of the transparent partition plate can help an experimenter to observe the condition of experimental reaction;

the utility model discloses in, the lower extreme of fume chamber body is equipped with the case of depositing that is used for depositing experimental apparatus can be at the experiment beginning or when the end experimenter is convenient take experimental facilities or place deposit the incasement, can make things convenient for going on fast of experiment.

Drawings

Fig. 1 is the utility model provides a structural schematic diagram of laboratory fume chamber.

Fig. 2 is the utility model provides a structural schematic diagram that first suction line and second suction line are connected in laboratory fume chamber.

Fig. 3 is the utility model provides a structural schematic of protection framework in laboratory fume chamber.

Reference numerals: 1. a fume hood body; 2. a protection plate; 3. a partition plate; 5. an air guide box body; 6. an air inlet port; 7. an air duct; 8. a protective frame body; 9. a transparent partition; 10. a first air extraction duct; 11. a second suction duct; 12. an air draft cover; 13. a threaded rod; 14. a clamping plate; 15. sealing the cushion block; 16. a hand wheel; 17. an operation table; 18. a first filter screen; 19. a second filter screen; 20. a slider; 21. and a limiting hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-3, the utility model provides a laboratory fume hood, including fume hood body 1, guard plate 2, baffle 3, wind-guiding box 5, wind-guiding pipeline 7, first suction duct 10, second suction duct 11, draft hood 12, threaded rod 13, pinch-off blades 14, seal cushion 15, hand wheel 16 and operation panel 17;

an air draft device is arranged at the upper end inside the fume hood body 1; the partition plate 3 divides the interior of the fume hood body 1 into two operating spaces, and sliding grooves are formed in the end faces of the two sides, far away from each other, of the partition plate 3; the operation table 17 is installed inside the fume hood body 1, one end face of one side of the operation table 17 is connected with the inner wall of the fume hood body 1, and the other end face of the operation table 17 is connected with the partition plate 3; the air guide box body 5 is installed inside the fume hood body 1, the lower end face of the air guide box body 5 is connected with the upper end face of the operating platform 17, and the end faces of the two sides of the air guide box body 5 are respectively connected with the end face of one side of the partition plate 3 and the protection plate 2, and an air inlet port is formed in the end face of one side, away from the inner wall of the fume hood body 1, of the air guide box body 5; a pipe orifice at one end of the air guide pipeline 7 is connected with a ventilation port at the upper end of the air guide box body 5, and a pipe orifice at the other end of the air guide pipeline 7 is connected with an air draft device at the upper end of the fume hood body;

an upper end pipe orifice of the first air draft pipeline 10 is connected with an air draft device at the upper end of the fume hood body 1, and the other end of the first air draft pipeline 10 is sleeved outside the second air draft pipeline 11; an upper end pipe orifice of the second air draft pipeline 11 is connected with a lower end pipe orifice of the first air draft pipeline 10 in a sliding mode, and a lower end pipe orifice of the second air draft pipeline 11 is connected with an upper end port of the air draft cover 12; the sealing cushion block 15 is positioned between the first air draft pipeline 10 and the second air draft pipeline 11, the inner peripheral surface of the sealing cushion block 15 is connected with the outer peripheral surface of the second air draft pipeline 11, and the sealing cushion block 15 is in sliding connection with the first air draft pipeline 10; one end of the threaded rod 13 is connected with the hand wheel 16, the other end of the threaded rod 13 extends into the first air draft pipeline 10, the other end of the threaded rod 13 is connected with the end face of one side of the clamping plate 14, and the threaded rod 13 is in threaded connection with the first air draft pipeline 10; the end face of the clamping plate 14 facing away from the first suction line 10 presses the outer circumferential surface of the second suction line 11.

In the utility model, when in use, the hand wheel 16 is rotated according to the height of the experimental equipment to drive the threaded rod 13 to rotate so as to make the clamping plate 14 far away from the outer peripheral surface of the second air draft pipeline 11, and then the height of the second air draft pipeline 11 is adjusted to adjust the air inlet port of the air draft cover 12 to be right above the experimental equipment; then, the hand wheel is rotated again to press the clamping plate 14 against the second air draft pipeline 11 towards the end surface of the second air draft pipeline 11; finally, opening an air draft device to start an experiment;

it should be noted that the first air draft pipeline 10 and the second air draft pipeline 11 are slidably connected, so that the air draft cover 12 can be conveniently moved above the experimental facility, harmful gas generated in the experiment can be quickly extracted and uniformly treated, and the experimental gas leakage and harm to the body of the experimenter can be avoided;

in an optional embodiment, the device further comprises a protective frame body 8, a transparent partition plate 9 and a sliding block 20;

a placing groove for placing the protective frame body 8 is formed in the upper end of the fume hood body 1, and sliding grooves for being in sliding connection with the protective frame body 8 are formed in the end faces, facing each other, of the protective plate 2 and the partition plate 3; the end faces of two sides, far away from each other, of the protection frame body 8 are connected with a sliding block 20 used for sliding into the sliding chute, and the protection frame body 8 is provided with a mounting hole used for mounting the transparent partition plate 9; the transparent partition 9 is installed inside the installation hole.

It should be noted that the protective frame 8, the transparent partition 9 and the sliding block 20 are used in cooperation, so that the protective frame 8 can be conveniently pulled down to isolate the experimental reaction space from the outside during dangerous experimental reaction, and dangerous accidents caused by the experiment can be avoided; the use of the transparent partition 9 can help the experimenter to observe the condition of the experimental reaction;

in an alternative embodiment, the lower end of the protective frame 8 is provided with a limiting hole 21 for locking the protective frame 8.

In an alternative embodiment, a first filter 18 is provided inside the hood 12; and a second filter screen 19 for filtering the experimental object is arranged on the end surface of the air guide box body 5 where the air inlet port 6 is positioned.

In an alternative embodiment, the lower end of the fume hood body 1 is provided with a storage box for storing the experimental device.

It should be noted that, the lower end of the fume hood body 1 is provided with a storage box for storing the experimental device, so that experimenters can conveniently take or place experimental equipment into the storage box when an experiment starts or ends, and the experiment can be conveniently and rapidly carried out;

in an alternative embodiment, the operation table 17 is provided with a faucet and a sink for washing the laboratory instruments.

In an alternative embodiment, the end face of the partition 3 facing the protection plate 2 is provided with a light strip for illumination.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A laboratory fume hood is characterized by comprising a fume hood body (1), a protection plate (2), a partition plate (3), an air guide box body (5), an air guide pipeline (7), a first air suction pipeline (10), a second air suction pipeline (11), an air suction cover (12), a threaded rod (13), a clamping plate (14), a sealing cushion block (15), a hand wheel (16) and an operation table (17);

an air draft device is arranged at the upper end inside the fume hood body (1); the inner part of the fume hood body (1) is divided into two operation spaces by the partition plate (3), and sliding grooves are formed in the end faces of the two sides, far away from each other, of the partition plate (3); the operation table (17) is installed inside the fume hood body (1), one side end face of the operation table (17) is connected with the inner wall of the fume hood body (1), and the other side end face of the operation table (17) is connected with the partition plate (3); the air guide box body (5) is installed inside the fume hood body (1), the lower end face of the air guide box body (5) is connected with the upper end face of the operating table (17), and the end faces of the two sides of the air guide box body (5) are respectively connected with the end faces of one side of the partition plate (3) and the protection plate (2) and an air inlet port is formed in the end face of one side, away from the inner wall of the fume hood body (1), of the air guide box body (5); a pipe orifice at one end of the air guide pipeline (7) is connected with a ventilation port at the upper end of the air guide box body (5), and a pipe orifice at the other end of the air guide pipeline (7) is connected with an air draft device at the upper end of the fume hood body;

an upper end pipe orifice of the first air draft pipeline (10) is connected with an air draft device at the upper end of the fume hood body (1), and the other end of the first air draft pipeline (10) is sleeved outside the second air draft pipeline (11); an upper end pipe orifice of the second air draft pipeline (11) is connected with a lower end pipe orifice of the first air draft pipeline (10) in a sliding mode, and a lower end pipe orifice of the second air draft pipeline (11) is connected with an upper end port of the air draft cover (12); the sealing cushion block (15) is positioned between the first air draft pipeline (10) and the second air draft pipeline (11), the inner peripheral surface of the sealing cushion block (15) is connected with the outer peripheral surface of the second air draft pipeline (11), and the sealing cushion block (15) is in sliding connection with the first air draft pipeline (10); one end of the threaded rod (13) is connected with the hand wheel (16), the other end of the threaded rod (13) extends into the second air draft pipeline (11), the other end of the threaded rod (13) is connected with the end face of one side of the clamping plate (14), and the threaded rod (13) is in threaded connection with the second air draft pipeline (11); the end face of the clamping plate (14) far away from the second air suction pipeline (11) presses the peripheral face of the first air suction pipeline (10).

2. A laboratory fume hood according to claim 1, characterized by further comprising a protective frame (8), a transparent partition (9) and a slider (20);

a placing groove for placing the protective frame body (8) is formed in the upper end of the fume hood body (1), and sliding grooves for being in sliding connection with the protective frame body (8) are formed in the end faces, facing each other, of the protective plate (2) and the partition plate (3); the end faces of two sides, far away from each other, of the protection frame body (8) are connected with a sliding block (20) used for sliding into the sliding chute, and a mounting hole used for mounting a transparent partition plate (9) is formed in the protection frame body (8); the transparent partition plate (9) is arranged inside the mounting hole.

3. A laboratory fume hood according to claim 2, characterized in that the lower end of the protective frame (8) is provided with a limiting hole (21) for locking the protective frame (8).

4. A laboratory fume hood according to claim 1, characterized in that the inside of the hood (12) is provided with a first filter (18); and a second filter screen (19) for filtering the experimental object is arranged on the end surface of the air guide box body (5) where the air inlet port (6) is positioned.

5. A laboratory fume hood according to claim 1, characterized in that the lower end of the fume hood body (1) is provided with a storage box for storing laboratory devices.

6. Laboratory fume hood according to claim 1, characterized in that the worktop (17) is provided with a tap and a sink for washing laboratory utensils.

7. A laboratory fume hood according to claim 1, characterized in that the end of the partition (3) facing the protective plate (2) is provided with a light strip for illumination.