Exhaust and suction device

Abstract

The invention discloses a gas exhausting and liquid sucking device which comprises a first connecting piece provided with a first channel. A second connecting piece provided with a second channel is arranged on the side face of the first connecting piece. The second channel and the first channel are connected through a third channel. A spring is arranged in the second channel. A ball is arranged on the top of the spring. A protruding ring is arranged in the second channel. The ball is located below the protruding ring. The diameter of the protruding ring is smaller than the diameter of the ball. An O-shaped ring is arranged below the protruding ring. The ball is matched with the O-shaped ring. The second connecting piece is provided with an adjusting piece. The adjusting piece is provided with a fourth channel and an ejector rod. The fourth channel is communicated with the second channel. The ejector rod is provided with a first position where the ball can be ejected out and a gap can be generated by the ball and the second channel in the upper end of the ball, and a second position not in contact with the ball. The gas exhausting and liquid sucking device can suck liquid and can rapidly exhaust gas in a high-pressure pipe assembly and a high-pressure gun, so that the gas exhausting time of a self-absorbing high-pressure pump is shortened, and the service life of the high-absorbing high-pressure pump is prolonged.

Description

technical field [0001] The invention belongs to the technical field of high-pressure cleaners, in particular to exhaust and liquid suction devices. Background technique [0002] High-pressure cleaners are used for cleaning and maintenance of various motor vehicles, engineering vehicles, construction machinery and agricultural machinery supporting products; cleaning of building exterior walls, floors, baths and swimming pools; cleaning of food processing plants, food processing machinery, hotels and restaurants Commonly used equipment for disinfection and cleaning in the kitchen. [0003] Existing high-pressure cleaners generally have a liquid suction function, figure 1 It is a liquid suction device on an existing high-pressure cleaning machine, including a first connecting piece 1 with a first passage 11, a first valve core 12 inside the first passage 11, and a side of the first connecting piece 1 with a The second connecting piece 2 of the second passage 21, the second pa...

AI Technical Summary

Problems solved by technology

[0004] However, the existing cleaning machines generally only have a single suction function. When the machine is started, the high-pressure water gun needs to be opened and then exhausted. Due to the long length of the high-pressure pipe assembly and the high-pressure gun, the high-pressure pipe assembly is generally 5M-15M, and the length of the gun 0.85M-0.95M, the diameter of the high-pressure gun nozzle is generally only 0.9mm-1.3mm, the internal air resistance is relatively large, the exhaust time of the self-priming high-pressure pump is long, and the internal high-speed transmission leads to increased wear and tear, which seriously affects its service life

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