Safe environment-friendly laboratory ventilation hood

Abstract

The invention discloses a safe environment-friendly laboratory ventilation hood. A lower hood body is arranged at the bottom of a ventilation hood body, a working area is arranged on the top of the lower hood body, side plates are installed on the two sides of the working area, the bottom ends of the front sides inside the side plates are provided with sliding grooves, the tops of the sliding grooves are provided with electric push rods, the bottom ends of the electric push rods are fixedly connected with glass sliding doors, the top of the working area is provided with an upper hood body, thefront face of the upper hood body is provided with a face plate, the middle of the upper hood body is provided with a filter, the middle of the top of the upper hood body is provided with a fan, thebottom end of the fan is provided with an air collection cover, the outer side of the fan is provided with a damping part, the middle of the damping part is provided with a damping spring, one end ofthe damping spring is provided with a top plate, the bottom of the lower hood body is provided with trundles, the top plate and the damping part are elastically connected through the damping spring, elasticity is sufficient, noise produced when the fan works can be reduced, a good working environment is created conveniently, and the practicability of the ventilation hood body is improved.

Description

technical field [0001] The invention relates to the technical field of a laboratory fume hood, in particular to a safe and environment-friendly laboratory fume hood. Background technique [0002] In the chemical laboratory, various harmful gases, odors, moisture, and flammable, explosive, and corrosive substances will be produced during the experimental operation. In order to protect the safety of users and prevent the pollutants in the experiment from spreading to the laboratory, Usually, the experiment is transferred from the laboratory bench to the fume hood. Most of the existing laboratory fume hoods have simple structures, and the glass sliding doors need to be opened and closed manually, which not only increases the burden on the staff, reduces their work efficiency, but also It is also impossible to precisely control the opening height of the glass sliding door, which is prone to insufficient or excessive opening, and the safety is poor. In addition, most laboratory f...

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Problems solved by technology

[0002] In the chemical laboratory, various harmful gases, odors, moisture, and flammable, explosive, and corrosive substances will be produced during the experimental operation. In order to protect the safety of users and prevent the pollutants in the experiment from spreading to the laboratory, Usually, the experiment is transferred from the laboratory bench to the fume hood. Most of the existing laboratory fume hoods have simple structures, and the glass sliding doors need to be opened and closed manually, which not only increases the burden on the staff, reduces their work efficiency, but also It is also impossible to precisely control the opening height of the glass sliding door, which is prone to insufficient or excessive opening, and the safety is poor. In addition, most laboratory fume hoods are not equipped with shock absorbers. It will produce a lot of vibration, which will not only affect its service life and working effect, but also easily cause noise pollution, which is not conducive to creating a good working environment

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