Pump head with back suction effect
A pump head and lock head technology, applied in a single hand-held device, closing, packaging, etc., can solve problems such as unfavorable use, blockage, leakage, etc., and achieve the effect of preventing accidental pressing and facilitating use
Pending Publication Date: 2021-08-17
GUANGZHOU LIGAO PLASTIC PROD
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Problems solved by technology
[0002] In the prior art, after the pump head is used to squeeze the liquid, there will be liquid remaining in the liquid outlet channel in the press head. Since the liquid outlet channel in the press head is relatively large, the remaining liquid will be in contact with a large amount of air, and the liquid is easily damaged. Polluted or oxidized, when people use it next time, the polluted or oxidized liquid will be squeezed out first, which is not conducive to people's use
In addition, the liquid that is easy to solidify will be blocked in the liquid outlet channel of the press head, and the liquid that is not easy to solidify will leak out when the pump head is tilted
Method used
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[0032] Below, in conjunction with accompanying drawing and specific embodiment, the present invention is described further:
[0033] Such as figure 1 As shown, a foam pump with back-suction effect includes a press head 1, a handle 2, an outer cover 3, a gasket 4, a piston 5, a piston seat 6, a barrel 7, a spring 8, a steel ball 9, and a straw 10.
[0034] The inner side wall of the lower end of the outer cap 3 has an internal thread, and the internal thread is used to connect with the mouth of an external bottle having a matching external thread. The handle 2 is inserted in the outer cover 3, and the handle 2 can move up and down relative to the outer cover 3. The center of the handle 2 has a passage for liquid to pass through. The upper end of the handle 2 and the press head 1 are fixedly connected by a double-layer snap, figure 1 and figure 2 As shown, the head 1 is also provided with a first annular columnar structure 102 extending toward the handle 2, the upper end of t...
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The invention discloses a pump head with a back suction effect. The pump head with the back suction effect comprises a pressing head, an outer cover and a handle, the handle is movably connected to the outer cover, the pressing head is connected to one end of the handle, and a storage chamber used for storing liquid is formed between the inner surface of the outer cover and the outer surface of the handle. The pressing head comprises a columnar structure extending towards the storage chamber, the columnar structure is inserted into the end, close to the columnar structure, of the storage chamber, the pressing head comprises a liquid outlet channel, and the storage chamber communicates with the liquid outlet channel. In the pressing state, the columnar structure is used for extruding the liquid in the storage chamber into the liquid outlet channel, and in the non-pressing state, the liquid in the liquid outlet channel is sucked back into the storage chamber through the columnar structure. According to the pump head, the storage chamber is adopted, the liquid in the liquid outlet channel of the pressing head is sucked back, and a channel of the sucked-back liquid and an operation channel of a pump body are independent from each other and do not affect each other.
Description
technical field [0001] The invention relates to the technical field of pump heads, in particular to a pump head with back-suction effect. Background technique [0002] In the prior art, after the pump head is used to squeeze the liquid, there will be liquid remaining in the liquid outlet channel in the pressing head. Since the liquid outlet channel in the pressing head is relatively large, the remaining liquid will be in contact with a large amount of air, and the liquid is easily damaged. Contaminated or oxidized, when people use it next time, the polluted or oxidized liquid will be squeezed out first, which is not conducive to people's use. In addition, the liquid that is easy to solidify will be blocked in the liquid outlet channel of the pump head, and the liquid that is not easy to solidify will leak out when the pump head is tilted. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a pump head with a suck-...
Claims
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IPC IPC(8): B65D47/34
CPCB05B11/1001
Inventor 黄剑蕾
Owner GUANGZHOU LIGAO PLASTIC PROD