External double-spring perfume pump

Abstract

The invention discloses an external double-spring perfume pump which comprises a pump body, a pump chamber is arranged on the pump body, a suction assembly is arranged in the pump chamber, a locking cover is connected to the pump body, and an aluminum oxide bayonet is connected to the locking cover; a one-way valve is arranged at the lower end of the pump chamber; the upper end of the suction assembly is connected with a pressing part; the suction assembly comprises an upper pump rod, the upper pump rod is connected with a lower pump rod, a main spring is arranged between the upper pump rod and the locking cover, a liquid inlet is formed in the lower pump rod, a suction plug is arranged on the outer side of the lower pump rod, an auxiliary spring is arranged between the upper pump rod andthe suction plug, and a liquid inlet channel is formed between the lower pump rod and the suction plug when the suction assembly moves downwards. The pump is simple in structure, the structure that the spring is externally arranged is adopted, the main spring is arranged between the upper pump rod and the locking cover, and the auxiliary spring is further arranged between the upper pump rod and the suction plug, so that the pump starting speed is high, and the spraying amount is stable; the lower pump rod penetrates through the locking cover to be connected with the upper pump rod, the lower pump rod is provided with the liquid inlet capable of being communicated with the suction channel, assembling is convenient, and the suction effect is good.

Description

【Technical field】 [0001] The invention relates to a miniature atomizer, in particular to an external double-spring perfume pump. 【Background technique】 [0002] At present, there are many micro-sprayers on the market. These micro-sprayers can atomize and spray the liquid in the container by pressing the button or nozzle; their working principle is: using the principle of atmospheric pressure balance, the piston moves in the pump body to make the pump The gas in the body flows, the pressure becomes smaller, and the pressure outside the pump remains unchanged. A pressure difference is generated inside and outside the pump body, and the liquid is guided out of the pump body through the pressure difference. When the liquid meets the high-speed air flow, it is atomized instantly; Principle: In the same fluid, the larger the flow velocity, the smaller the pressure; the smaller the flow velocity, the stronger the pressure. These sprayer products are widely used in fields such as g...

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Problems solved by technology

[0003] However, there are many existing structural parts, the installation process is complicated, and the production cost is high. The spring of the suction assembly of the traditional perfume pump will directly contact the liquid in the pump chamber. When the spring is rusted, the liquid will be polluted and unhygienic; and Because there is only one spring, the air pump speed is slow and the spray effect is poor

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