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New laboratory fume hood

A laboratory and fume hood technology, applied in the field of laboratory exhaust, can solve the problems of poor ventilation effect of fume hoods, high production and use costs, inconvenient adjustment and use, etc., and achieves fast ventilation speed, low production and use costs, convenient Adjust the effect used

Active Publication Date: 2020-09-08
JIAXING VOCATIONAL TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The prior art has the following deficiencies: the fume hood is designed with a fixed structure, which is inconvenient to adjust and use, and the use range is narrow, and the ventilation effect of the fume hood is poor. During use, multiple driving mechanisms are required to drive and run, and the production and use costs are high. easy to promote

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1: The workbench 1 is placed horizontally through universal wheels, and the experimental items can be placed in the storage cabinet 17. The fan 19, the motor 3 and the electric push rod 14 are electrically connected to the external distribution box through cables. When in use, control two The electric push rod 14 runs, and the electric push rod 14 drives the two adjustment plates 4 to move to both sides of the shaft rod 2, so that the two second driving bevel gears 6 mesh with the two second driven bevel gears 12. At this time, the control The motor 3 runs, the motor 3 drives the shaft rod 2 to rotate, the shaft rod 2 drives the two second driving bevel gears 6 to rotate, the two second driving bevel gears 6 rotate through the two second driven bevel gears 12, and the two second driving bevel gears 6 rotate. The driven bevel gear 12 drives the two rotating cylinders 13 to rotate. Since the screw rod 16 is threadedly connected with the rotating cylinder 13, whe...

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PUM

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Abstract

An embodiment of the invention discloses a new laboratory fume hood. The fume hood comprises a workbench, wherein a shaft is movably arranged at the center of the inner cavity of the workbench, a motor is fixed on one side of the workbench, the shaft is in transmission connection with the motor through an output shaft, both sides of the shaft are provided with adjusting plates, both the two adjusting plates are slidably connected to the shaft, and both the adjacent sides of the two adjusting plates are movably provided with first driving bevel gears. In the invention, a placement cabinet is driven to move up and down through the motor to facilitate the use of people of different heights, an electric push rod drives the two first driving bevel gears to move to the middle of the shaft, the motor can drive two exhaust fans to rotate to generate airflow, and the airflow moves above the workbench through a wind gap, with a fan to speed up the air exchange rate at the top of the workbench. The fume hood has both lifting and double exhaust functions, has a wide range of use and is of a movable structure design, and is convenient to adjust and use and easy to promote.

Description

technical field [0001] The invention relates to the technical field of laboratory ventilation, and more specifically, the invention relates to a novel laboratory fume hood. Background technique [0002] The fume hood is an indispensable part of the laboratory ventilation design. In order to prevent laboratory workers from inhaling or swallowing some toxic, pathogenic or unknown toxic chemicals and organisms, there should be good ventilation in the laboratory. Ventilation. In order to prevent the absorption of some vapors, gases and particles (smoke, soot, dust and aerosols), pollutants must be removed by means of fume hoods, fume hoods or local ventilation; [0003] The prior art has the following deficiencies: the fume hood is designed with a fixed structure, which is inconvenient to adjust and use, and the use range is narrow, and the ventilation effect of the fume hood is poor. During use, multiple driving mechanisms are required to drive and run, and the production and u...

Claims

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Application Information

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IPC IPC(8): B08B15/02
CPCB08B15/023
Inventor 阮玉燕
Owner JIAXING VOCATIONAL TECHN COLLEGE
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