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Cylinder and valve structure for liquid dispensing container

A technology of liquid and external cylinder, which is applied in the direction of dispensing devices, transportation and packaging, and individual handheld devices, etc., which can solve the problems that high liquid impermeability cannot be realized, and the processing cost of valve seat and valve body increases.

Inactive Publication Date: 2003-12-03
增田胜利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, high liquid-tightness cannot be achieved when the contact portion of the seat and the body is not processed with high precision
In order to process the contact part of the seat and the valve body with high precision, the processing cost of the seat and the valve body increases

Method used

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  • Cylinder and valve structure for liquid dispensing container
  • Cylinder and valve structure for liquid dispensing container
  • Cylinder and valve structure for liquid dispensing container

Examples

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specific Embodiment approach

[0051] The present invention can be implemented in various ways, including but not limited to the following embodiments, and any combination of these elements and configurations can also be used in the present invention.

[0052] In the first embodiment of the present invention, the cylinder mechanism of the fluid container includes a cylinder filled with fluid inside and a piston reciprocating inside the cylinder, characterized in that, on the outer peripheral surface of the piston, a pair of liquid-tight The portions are disposed in positions spaced apart by a certain distance, each of the pair of liquid-tight portions contacts the inner peripheral surface of the cylinder, and the contact portion where the pair of liquid-tight portions contacts the inner peripheral surface of the cylinder includes a pair of adjacently disposed protrusions part.

[0053] In the second embodiment, the cylinder mechanism of the fluid container includes a cylinder filled with fluid and a piston ...

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Abstract

A liquid-dispensing structure includes: an outer cylinder with a one-way valve at its lower end to allow a liquid to flow into the outer cylinder; a hollow piston being slidable inside the outer cylinder and having a pair of liquid-tight portions formed with circular convex portions around its outer circumferential surface in positions apart in an axial direction; and an inner cylinder for dispensing a liquid, which reciprocates inside the outer cylinder so that the piston moves in a piston-sliding area (S) of the inner cylinder having an opening through which the liquid flows. The opening is closed when the piston is at a lower position and is opened when the piston is at an upper position.

Description

technical field [0001] The present invention relates to cylinder mechanisms for fluid containers such as cosmetic cases. Furthermore, the present invention relates to a valve mechanism for a fluid or liquid container such as cosmetics. Background technique [0002] For this type of cylinder mechanism, the construction conventionally uses a cylinder filled with fluid and a piston sliding inside the cylinder. [0003] In conventional cylinder mechanisms, it is difficult to smoothly reciprocate the piston while achieving sufficient liquid tightness. Furthermore, in order to achieve a structure in which the piston can reciprocate smoothly while achieving liquid-tightness, the piston needs to be processed with very high precision, which increases production costs. [0004] For this reason, a structure may be considered in which the piston moves smoothly while achieving high liquid-tightness by providing an O-ring contacting the inner peripheral surface of the cylinder on the ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D83/76B05B11/00
CPCB05B11/3067B05B11/3023B05B11/3074B05B11/0048B05B11/028B05B11/1023B05B11/1067B05B11/1074B65D47/00
Inventor 增田胜利
Owner 增田胜利