Drooping type circular air pipe air outlet structure with watertight cover and insect-proof net

Abstract

The invention relates to the technical field of ventilating ducts, and discloses a drooping type circular air pipe air outlet structure with a watertight cover and an insect-proof net. The drooping type circular air pipe air outlet structure comprises a drooping type circular air outlet pipe, an insect-proof net assembly and a watertight cover assembly, wherein the insect-proof net assembly comprises a disc-shaped steel wire mesh which is matched with an inner hole of the drooping type circular air outlet pipe and a long strip-shaped supporting plate connected to the lower end surface of the disc-shaped steel wire mesh, the two ends of the long strip-shaped supporting plate are fixedly connected with the inner wall of the drooping type circular air outlet pipe, a screw rod which is vertically arranged downwards is fixedly connected to the lower end surface of the long strip-shaped supporting plate, and the watertight cover assembly comprises a watertight cover which is arranged on the outer circle of the screw rod in a sleeving mode and can slide up and down along the outer circle of the screw rod, and a nut which is connected to external threads at the lower end of the screw rod and is used for upwards jacking the watertight cover on the end face of the lower end of the drooping type circular air outlet pipe. According to the drooping type circular air pipe air outlet structure with the watertight cover and the insect-proof net, the insect prevention and waterproof structure of a circular air pipe air outlet is simplified, the occupied space is reduced, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of ventilation ducts, in particular to a drooping circular air duct air outlet structure with a watertight cover and an insect-proof net. Background technique [0002] Large ships are generally equipped with a large number of ventilation ducts. The ventilation ducts generally use circular air ducts. According to different working conditions, the air outlets of the ventilation ducts need to be opened or closed. In order to prevent insects and water, the air outlet of the circular air duct is usually equipped with weathertight shutters. [0003] The air outlet structure of the above-mentioned circular air duct in the prior art has the following problems: since the weathertight louver is rectangular, it is necessary to design a transitional structural air duct on the bulkhead when installing the louver for the circular air duct so that Butt-mount rectangular shutters. Such a structure not only takes up the li...

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Problems solved by technology

[0003] The air outlet structure of the above-mentioned circular air duct in the prior art has the following problems: since the weathertight louver is rectangular, it is necessary to design a transitional structural air duct on the bulkhead when installing the louver for the circular air duct so that Butt Mount Rectangular Shutters

Such a structure not only occupies the limited space on the ship, but also increases the difficulty of design and manufacture, and also increases the construction cost

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