A retractable negative pressure range hood

Abstract

The invention discloses a telescopic negative-pressure kitchen ventilator. The problems that when an existing negative-pressure kitchen ventilator is used, the distance between a smoke exhaust hood and a cooking bench is fixed because the position of the smoke exhaust hood is fixed, so that the smoke exhaust effect is reduced due to the fact that the distance is limited even if the suction force is strong, and the angle of the smoke exhaust hook cannot be adjusted because the position of the smoke exhaust hood is fixed, the direction and angle of the smoke exhaust hood of the existing kitchenventilator cannot be adjusted to meet the requirement that smoke can be exhausted by the smoke exhaust hood even if the direction of the smoke is changed by wind are solved. The telescopic negative-pressure kitchen ventilator comprises a top box for installing a negative-pressure fan, a base for installing a smoke exhaust hood and a top cover positioned between the top box and a base, wherein an air inlet groove is formed in a side wall of the top box, the negative-pressure fan is installed in the air inlet groove, an air inlet cover is installed on a side wall of the air inlet groove, a filter screen is installed on the air inlet cover, a hydraulic pump positioned above the top cover is installed on the bottom of the top box, and the top of the hydraulic pump is connected with an exhaustpipeline connected with the negative-pressure fan.

Description

technical field [0001] The invention relates to the field of range hoods, in particular to a retractable negative pressure range hood. Background technique [0002] Range hood, also known as range hood, is a kitchen appliance that purifies the kitchen environment. It is installed on the top of the kitchen stove, which can quickly take away the waste burned by the stove and the oil fume harmful to the human body produced during the cooking process, and discharge it to the outside to reduce pollution and purify the air. Most of the existing range hoods are negative pressure range hoods. And the use of a high-speed negative pressure motor with a large-diameter wind wheel creates a super negative pressure area during operation, making the airflow rise faster and more intensely, forming a strong suction, so that the oil fume has nowhere to escape, and achieves good oil absorption Effect. However, the existing negative pressure range hoods still have certain defects when they ar...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a retractable negative pressure range hood, which can solve the problem that when the existing negative pressure range hood is in use, since the position of the exhaust hood is fixed, the distance between the range hood and the stove is fixed, so even if the suction force is strong , it will also be limited by the distance, which will lead to a decrease in the effect of the oil fume, and the position of the exhaust hood is fixed and the angle cannot be adjusted. As a result, the existing range hood exhaust hood does not have the ability to adjust the direction angle to meet the requirements even if the oil fume is changed by the wind. The problem with demand being sucked away by the hood

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