Double-flexible pipe container with one-way valves

Abstract

The invention relates to a double-flexible pipe container with one-way valves, comprising an outer pipe and a pipe cover, wherein a bottom board is arranged in the pipe head of the outer pipe, a left through hole communicated with the outer pipe and a right through hole communicated with an inner pipe are arranged on the bottom board, a connecting pipe extends under the right through hole, and an inner pipe body in the body of the outer pipe is sleeved with the connecting pipe to form the inner pipe. The double-flexible pipe container also comprises a pair of one-way valves and a smearing device, wherein the one-way valves are installed on the bottom board at the pipe head; the end of the smearing device is a smearing part with a liquid outlet hole, and the smearing part is clamped in the pipe head; a partition board installed in an inner cavity of the smearing device partitions the inner cavity into a left chamber and a right chamber, the pipe cover covers the pipe head of the outer pipe, and the liquid outlet hole in the smearing part of the smearing device is plugged by a plug in the pipe cover. One pair of one-way valves are arranged in the double-flexible pipe container, the inner pipe is eccentrically sleeved in the outer pipe, and the pipe cover is opened or closed through the pair of built-in one-way valves so that the outflow of contents in the outer pipe and the inner pipe is allowed or prevented.

Description

technical field [0001] The invention belongs to the technical field of paste product packaging, in particular to a double-hose container with a one-way valve. to allow or prevent the two pastes from flowing out. Background technique [0002] At present, tube packaging is widely used in cosmetics, medicine, food, toothpaste, medical ointment and other products. Squeeze-type single-tube structure is mostly used to accommodate cream cosmetics in the hose. When using, open the cap and squeeze the hose to make the cream cosmetics flow out for use. Some cosmetics, such as sunscreen lotion, lipstick, or lip balm, and hair dye, etc., often require a variety of pastes to be used in proportion, and are still packaged in single tubes, which increases production costs. When in use, each single tube is opened separately, and the two pastes are squeezed out and then blended for use, which is inconvenient to use and carry. [0003] Taiwan Patent No. M297920 discloses an improved double-...

AI Technical Summary

Problems solved by technology

[0004] However, the installation and fixation of the inner and outer pipes of this improved structure need to be realized by parts such as the joints and the middle sleeve with complex shapes, and the structure is complicated, which increases the production cost

At the same time, this improved structure is not equipped with a valve switch, the outlet of the liquid outlet in the mouthpiece is always connected with the outlet of the mouthpiece, the outlet of the liquid outlet of the inner pipe is always open, and the paste (or content) in the inner and outer pipes is in the mouth of the pipe. The outlets are mixed, and the paste at each outlet is easy to deteriorate or dry out, resulting in blockage

At the same time, when the rebound pressure is generated after the tube body is squeezed, the mixed content at the outlet of the tube will be sucked back into the tube body, causing the content in the inner and outer tubes to be polluted, and the inner / outer parts will be lost. The meaning of tube

[0005] In addition, the outlet liquid channel in the mouthpiece is long, and each outlet is small, so it can only adapt to the traditional process of sealing the pipe tail after filling the contents separately from the pipe tail

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