A push-pull type anti-spray and feces collection device

Abstract

The invention relates to a push-pull type anti-backspray feces collection device, comprising a toilet and a large sewage tank, the lower end of the toilet is connected with a sewage inlet pipe, the large sewage tank is connected with a sewage discharge pipe, and also includes a cylinder body, which is arranged in the cylinder The piston in the body and seals the cavity of the cylinder body, the driving mechanism that can drive the piston to move axially along the cylinder body, and the check valve arranged in the sewage pipe; one end of the cylinder body is provided with a sewage outlet connected to the sewage pipe. There is a sewage inlet connected to the sewage inlet pipe on the side wall; the piston closes the sewage inlet when the stool collection device is not working, and moves to the other end of the cylinder when the sewage is discharged to form a cavity close to the sewage outlet Negative pressure and guide the sewage inlet pipe to suck the dirt in the toilet and then move to the one end of the cylinder to form a positive pressure in the cavity near the sewage outlet to open the one-way valve to make the dirt in the cavity Into the big dirt tank. The stool collection device has a simple and reliable structure, is beneficial to saving production and use costs, and has a good anti-spray effect.

Description

Technical field [0001] The present invention relates to the technical field of a buckle device, and more particularly to a push-pull anti-nicker device on a rail passenger car or aircraft. Background technique [0002] The assembled device is a must-have dirt treatment system on the train, aircraft or even long-distance passenger cars. The assembled device in the prior art is mainly by setting a vacuum generator, which produces a negative pressure in the middle of the continent. Then transfer the dirt in the middle transfer in the large contour box by positive pressure. Such a buckle device uses a valve part to control the pipe opening and closing in the front and rear end of the middle transfer box to achieve the pressure of the inner transfer case. In actual use, when the control valve failure between the boot is unable to close the seal, if the system performs a dirt positive pressure transfer operation, the residual dirt in the pipe will be possible to reverse from the manife...

AI Technical Summary

Problems solved by technology

In actual use, when the control valve between the toilet and the transfer box fails to be closed for sealing, if the system performs the positive pressure transfer operation of the dirt at the same time, the residual dirt in the pipeline may be sprayed back from the toilet, thereby affecting Toilets cause pollution and even cause harm to users

Some vacuum-maintaining feces collection systems have canceled the transfer box, but the large dirty tank of this kind of feces collection device needs to maintain a negative pressure state, resulting in thicker panels of the large dirty tank and high sealing requirements, which in turn leads to the leakage of the feces collection device. Heavy weight and high cost. In addition, the large dirty tank and valve body are prone to leakage, which increases gas and electricity consumption, which is not conducive to energy saving

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