Pressure balance type underwater toilet blowdown device

Abstract

The invention provides a pressure balance type underwater toilet blowdown device, belongs to the technical field of blowdown devices, and aims at solving the problem that an existing submarine underwater toilet is poor in use effect. The device comprises a storage barrel, a piston and a push rod; the storage barrel comprises a barrel body and two end covers; the two end covers are fixed to the two ends of the barrel body respectively; the piston is movably arranged in the barrel body; and one end cover is provided with a through hole for containing the push rod, one end of the push rod penetrates through the through hole and extends into the barrel body, and the push rod is fixedly connected with the piston. According to the design, compressed air is not used as a pollution discharge mode, so that the situation that the compressed air escapes to the outboard to expose a target is avoided, the situation that the compressed air is released into a cabin to increase the air pressure of the cabin and gas with peculiar smell is avoided, and the device is flexible to use and can be used at any depth within the limit depth.

Description

technical field [0001] The invention relates to the technical field of sewage discharge devices, in particular to a pressure-balanced underwater toilet sewage discharge device. Background technique [0002] The underwater toilet is an indispensable device for the life of underwater combat platform personnel. Its main function is to collect and store personnel's stool, and discharge it overboard when a certain reserve is reached, so that the storage container is emptied and can be used again. Its basic requirements are first to have a certain capacity to ensure the needs of personnel's life, second, not to destroy the concealment of the underwater combat platform, third, to reduce the environmental pollution in the cabin as little as possible, and fourth, to be easy to operate and have a low failure rate. [0003] The existing technical scheme is to use compressed air to blow out the dirt in the storage container overboard, and release the compressed air in the storage contai...

AI Technical Summary

Problems solved by technology

The structure of the device is simple, but there are four relatively big problems: one is that the compressed air is easy to escape overboard when blowing off, and it is easy to expose the target, which is not conducive to maintaining concealment; the other is that the compressed air is released after blowing off into the cabin, causing the cabin pressure to rise, which will affect the health of personnel, and an air compressor must be used to depressurize the cabin, which is not conducive to maintaining concealment; third, the air released from the storage container into the cabin is air containing peculiar smell, which is harmful to The life and health of personnel are adversely affected, and the underwater navigation time of modern combat platforms is getting longer and longer, and this problem is becoming more and more prominent; the fourth is that the use depth is limited, and the greater the depth, the required compressed air pressure will be greater. The higher, the more compressed air is released into the cabin

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