Liquid pump

Abstract

The invention discloses a liquid pump. The pump comprises a pump body made of full-plastic materials, a pressing pump head, a combination cover, a threaded cover, a piston assembly, a connecting pieceand a valve piece, wherein a spring cavity is formed inside the pressing pump head, a sealed spring is arranged inside the spring cavity, and the sealed spring and the spring cavity form an air pressure type elastic pressing structure; a water retaining structure is arranged between the pressing pump head and the combination cover; and the pressing pump head and the piston assembly are connectedin a sealed mode through an anti-pull-off structure, and the piston assembly penetrates the interior of the connecting piece and is connected to the connecting piece in an opening and closing mode through an opening and closing structure. Through the design of a waterproof structure, the risk that external water leaks into a liquid container to cause liquid bacteria in a using process of the liquid pump is avoided, the problem of damage or liquid leakage during falling is solved by designing new structural force such as pull-off prevention and rotation stopping on each part and through a toughening material, and the overall sealing performance is improved.

Description

technical field [0001] The invention relates to the technical field of pumps, in particular to a liquid pump with good waterproof performance and anti-break function. Background technique [0002] With the continuous improvement of people's lives, people are now paying more and more attention to the environmental protection of the entire earth while paying attention to their own health and hygiene. When people wash their hands, face or bathe, they are used to using some cleaning liquids to maintain Self-health, but precisely because of the increasing amount of these cleaning fluids, more and more garbage such as waste pump bodies will be generated. At the same time, the existing liquid pumps are not waterproof during use. Function, when the user has water on his hands or there is water outside, the water will enter the pump body and bring serious risks to the liquid bacteria, resulting in the deterioration of the internal liquid and causing harm to the user. In addition, tr...

AI Technical Summary

Problems solved by technology

[0005] Although all the parts of the above technical solution are made of all plastic, they can be recycled without sorting, which is energy-saving and environmentally friendly. However, in this technical solution, the plastic spring is supported between the nozzle and the switch. High, not suitable for the use of a large number of liquid pumps

At the same time, the lotion pump needs to rotate the valve stem to prevent the misoperation of spraying, and lock it by rotating the guide device on it to the space above the stop ring of the switch. Although this structure can also avoid misoperation to make the liquid spray, but this This structure requires additional operations. If you forget to turn the valve stem, it is also impossible to avoid misoperation, and the operation is extremely inconvenient.

And it does not have waterproof function, and the anti-fall function is poor, so it is not suitable for the requirements of e-commerce express delivery

Images