External spring type pump core and using method thereof

Abstract

The invention relates to an external spring type pump core and a using method thereof. The external spring type pump core is designed aiming to solve the technical problem that the structural design of existing products of the same type is poor. One port of a pump body of the pump core is in interference fit with a bayonet mount in a sealed and buckled mode. One end of a valve rod stretches into the pump body through the bayonet mount. The valve rod is connected with one end of a valve needle in a sleeved mode into a whole. A spring is arranged on the outer circle of the valve rod, and the two ends of the spring are abutted against the outer circle of a port of the other end of the valve rod and the bayonet mount respectively. A piston is arranged on the outer circle of the valve needle in the bump body. A liquid inlet in the other end of the interior of the pump body is provided with an elastic sleeve. The external spring type pump core is characterized in that the valve needle is a T-shaped screw, and the valve needle is buckled with buckling positions symmetrically arranged on the two sides of the inner circle of a center hole of the valve rod through buckle grooves in the outer circle of the top end of the screw into a whole; valve rod ribs are arranged on the wall of the inner circle of the center hole of the valve rod, and piston ribs are arranged on the wall of the inner circle of the piston; liquid flows into the valve rod through the piston ribs of the piston and the valve rod ribs of the valve rod. The pump body may be provided with a loophole and a suction pipe. The external spring type pump core is suitable for a lotion pump or vacuum pump.

Description

technical field [0001] The invention relates to a pump core of an emulsion pump and a vacuum pump, and relates to a pump core with an external spring and a use method thereof. Background technique [0002] Emulsion bottles and vacuum pumps are containers used for emulsion storage and extraction. They mainly use the principle of the push-type micro-sprayer, and omit the setting of the baffle in the head cap, so that the emulsion passes through the suction pipe and the pump body, and then flows from the head of the nozzle. The cap flows out without being atomized and sprayed out due to the blocking of the baffle. The difference between the two is mainly whether there is a through hole on one side of the pump body, and whether there is a straw; the main structure of this type of lotion bottle and vacuum pump is a lotion bottle cap and a pump core, some of which use an external spring. structure. For example, the application number 201410567188.8 disclosed in the Chinese paten...

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Problems solved by technology

[0003] In order to overcome the above disadvantages, the purpose of the present invention is to provide the field with a spring-mounted pump core and its use method, so that it can solve the problem of poor stability of the liquid discharge effect and small liquid discharge volume of existing similar products. technical problem

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