Gasproof cab of double ventilation structure

Abstract

The invention discloses a gasproof cab of a double ventilation structure, and belongs to the technical field of engineering machinery. A common fresh air channel system and a poisonous gas filtering fresh air channel system which are independently controlled are installed on one side of a cab body; the common fresh air channel system comprises a large fan, a filter screen I and an evaporator whichare sequentially connected, the evaporator is covered with an evaporator cover, and a valve is arranged at an air inlet of the evaporator; and the poisonous gas filtering fresh air channel system comprises a small fan, a poisonous gas filtering layer and a filter screen II which are sequentially connected, and the poisonous gas filtering layer and the filter screen II are covered with a poisonousgas filtering cover. When the poisonous gas filtering fresh air channel system is started, air is subjected to poisonous gas filtering through a core body containing a non-woven fabric filter screen,a catalyst layer and an activated carbon, and harmless air is provided for drivers and passengers; and through the independent running mode of two fresh air channels, the condition that a poisonous gas filtering medium is used up due to the poisonous gas filtering core body is forced to work when the two fresh air channels continuously run by sharing an air inlet channel is avoided, and the hazard that poisonous gas permeates into the cab due to the fact that sealing is possibly untight when the air inlet channel is shared is also avoided.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a double-ventilation structure anti-virus cab. Background technique [0002] The air purification system of the existing loader is mostly integrated on the external circulation system of the air conditioner, which is basically a layer of non-woven filter screen, which only has a filtering effect on some large particles and dust in the air. Sometimes the loader is used in some dispersive defense occasions, and may encounter some odor, stimulation, and poisonous gas attack and destruction, which will cause certain disturbance or even harm to the driver. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a poison-proof cab with double ventilation structure. The cab is equipped with a common fresh air channel and a poisonous fresh air channel. The poisonous fresh air channel can operate independ...

AI Technical Summary

Problems solved by technology

Sometimes the loader is used in some dispersive defense occasions, and may encounter some odor, stimulation, and poisonous gas attacks and damages, which will cause certain interference or even harm to the driver.

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