Inflatable lifting net

Abstract

Disclosed is an inflatable lifting net. The inflatable lifting net comprises a fishing net, an air bag connected to the periphery of the fishing net, a ventilation pipe and a device for inflating theair bag to float the fishing nett; the inflatable lifting net is characterized in that the device for inflating the air bag to float the fishing net is a high-pressure container for containing liquidnitrogen or liquid carbon dioxide; a 90-degree arc sleeve for preventing bending and sinking of the air bag or other 90-degree arc shaping objects are installed at the portion, at the right angle of the rectangular fishing net, of the air bag; an overwater blocking net is installed on the fishing net or the air bag; brackets for supporting net sheets of the overwater blocking net are brackets composed of plastic pipes or inflatable brackets, and a muffler is installed on the ventilation pipe.

Description

technical field [0001] The present invention relates to fishing equipment, and more particularly to inflatable lift nets. Background technique [0002] The prior art of inflating the net includes a fishing net, an air bag connected to the periphery of the fishing net, a ventilation pipe, and a device for inflating the air bag to float the fishing net. The disadvantage is: the inflators are all driven by electric motors or internal combustion engines, such as Chinese patents CN200620069360.8, CN201710000982.8, CN201420805339.4, the equipment is bulky and the cost is high. [0003] The airbags are generally long tubular. Because the fishing nets are mostly rectangular, at the right angles of the rectangular fishing nets, the airbags are often collapsed and the air input is not smooth, resulting in a delay in raising the net, some fish escaping, and sometimes even breaking through the airbags and fishing failures; Chinese patents CN201420805339.4 and CN201420805340.7 adopt the...

AI Technical Summary

Problems solved by technology

The disadvantage is that the inflators are all driven by electric motors or internal combustion engines, such as Chinese patents CN200620069360.8, CN201710000982.8, CN201420805339.4, the equipment is heavy and the cost is high

[0003] The airbags are generally long tubes. Since the fishing nets are mostly rectangular, at the right angles of the rectangular fishing nets, the airbags are often collapsed and the air input is not smooth, causing delays in lifting the net, some fish escape, and sometimes even breaking through the airbags and fishing fails; Chinese patents CN201420805339.4 and CN201420805340.7 adopt the scheme of installing densely-covered small-hole tubes in the airbag, and the gas is input through the densely-covered small-hole tubes. The disadvantage is that the gas filling speed is slow when the airbag is not collapsed, and the equipment cost is high and the weight is high. loud and noisy

[0004] The air bag that inflates the net lifts up, and the fishing net is lifted. Since the air bag is basically level with the water surface, the fish school is frightened and jumps, and it is easy to jump out of the fishing net.

[0005] When the high-pressure gas enters the airbag, the noise is louder, causing some fishes to flee at the sound

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