Negative pressure suction gun

Abstract

The invention relates to a negative pressure suction gun which effectively solves the problems that positive pressure flushing liquid splashes and a negative pressure buffering tank is full easily. According to the technical scheme, the negative pressure suction gun comprises a box body, two buffering tanks are arranged in the box body, a liquid drainage valve is arranged on the bottom of each buffering tank, and a liquid input valve is arranged on the top of each buffering tank; the two liquid input valves are connected with a liquid drawing pipe and a negative pressure suction gun body through a tee joint; a first connector is arranged at the upper end of each buffering tank; a vertical guide rod is arranged in each buffering tank, each guide rod is sleeved with a floating plate which can float along with liquid, and each floating plate is provided with a plug corresponding to the corresponding first connector; and a reversing device is installed in the box body, a valve element capable of rotating in a sealing manner is arranged on the middle portion of the reversing device, the valve element is provided with two L-shaped channels, one channel communicates with atmosphere, the other channel is connected with a negative pressure pipeline through a rotating connector, a piston cavity is connected to another connecting opening of the tee joint, a piston rod capable of resettingautomatically is arranged in the piston cavity, and the piston rod moves in a reciprocating manner to drive the valve element to rotate in a one-way manner through the rotating connector. The negative pressure suction gun achieves continuous flushing, and splashing of liquid is avoided.

Description

technical field [0001] The invention relates to the field of medical device flushing, in particular to a negative pressure suction gun. Background technique [0002] At present, tubular medical devices such as catheters used after surgery need to be cleaned after use, so as to keep the devices clean and prevent contamination. In the prior art, positive pressure water guns are often used to flush this type of equipment. Although the flushing effect is obvious, when the water gun is used, the water pressure is insufficient, which will make the washing unclean, and the water pressure is too high, which will cause serious liquid Splash, resulting in the spread of pollution, which is not conducive to cleaning, it is necessary to clean the cleaning site after cleaning; at the same time, when using positive pressure flushing, not all places are equipped with positive pressure equipment. [0003] However, the negative pressure suction of the hospital is like water and electricity t...

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Problems solved by technology

[0004] In view of the above situation, in order to solve the problems existing in the prior art, the object of the present invention is to provide a negative pressure suction gun, which can effectively solve the problems of positive pressure flushing liquid splashing and negative pressure buffer tank being full

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