Double-valve pump core structure with pressure retaining and boosting functions

Abstract

The invention discloses a double-valve pump core structure with pressure retaining and boosting functions. The double-valve pump core structure with the pressure retaining and boosting functions comprises a body. A big valve is arranged on an inlet in the bottom of the body. A collar sheet is fixedly connected to the inside top of the body. A main post is inserted into the collar sheet. An auxiliary post fixedly connected with the main post is arranged under the main post. A piston is fixed between the main post and the auxiliary post, arranged on the outer side of the auxiliary post and fixedly connected with the lower end of the main post. The piston is installed in an inner cavity of the body, and is in slidable sealed connection with the body. A spring is pressed between the collar sheet and the main post and arranged on the outer side of the main post in a sleeving mode. Liquid passing channels are formed in the auxiliary post and the main post correspondingly, and connected with the inner cavity of the body. A valve seat structure is arranged at the top of the liquid passing channel of the main post, and a small valve is installed on the valve seat structure. According to the double-valve pump core structure with the pressure retaining and boosting functions, when a solution flows through the inside of a pump core in the pressing process, the pressure of the solution can be well retained and boosted through the big valve and the small valve in the pump core, and the atomization effect is improved accordingly.

Description

technical field [0001] The invention relates to a pump core used for spraying, in particular to a double-valve pump core structure with pressure maintaining and boosting functions. Background technique [0002] At present, the pump cores used for spraying on the market are limited to simple pumping, and do not have the functions of maintaining pressure, increasing pressure, and instantly releasing internal pressure. During the use of the product, there is insufficient pump core pressure, and the atomization The pressure of the previous solution is low, the spray effect is not ideal, there are problems such as unstable solution pumping, solution pumping out and uneven pumping, product quality is unstable, pass rate and usage rate are low. Contents of the invention [0003] The present invention provides a double-valve pump core structure with the function of pressure maintaining and boosting in order to solve the technical problems existing in the known technology. [0004...

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Problems solved by technology

[0002] At present, the pump cores used for spraying on the market are limited to simple pumping, and do not have the functions of maintaining pressure, increasing pressure, and instantly releasing internal pressure. During the use of the product, there is insufficient pump core pressure, and the atomization The pressure of the previous solution is low, the spray effect is not ideal, there are problems such as unstable solution pumping, solution pumping out and uneven pumping, product quality is unstable, pass rate and usage rate are low

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