Automatic pump pressure type toothpaste package bottle

Abstract

The invention provides an automatic pump pressure type toothpaste package bottle which comprises a bottle body. A valve shell is mounted in the bottle body. The upper end and the lower end of the valve shell are each provided with an opening. A lower valve seat is arranged at the opening in the lower end of the valve shell. A lower sealing piece is arranged in the valve shell and located on the lower valve seat. A sealing pair is arranged between the lower sealing piece and the lower valve seat. An upper valve seat is arranged at the opening in the upper end of the valve shell. An upper sealing piece is arranged in the valve shell and located on the upper valve seat. A sealing pair is also arranged between the upper sealing piece and the upper valve seat. A piston is further arranged in the bottle body and located below the valve shell. When the valve shell is squeezed, the volume of an inner cavity of the valve shell is decreased, toothpaste between the upper sealing piece and the lower sealing piece is pushed upwards to open the upper sealing piece, and the toothpaste is squeezed out from the upper valve seat. When the squeezing force to the valve shell is canceled, the volume of the inner cavity of the valve shell is increased, so that negative pressure is formed, the toothpaste between the lower sealing piece and the piston is pushed upwards to open the lower sealing piece at the moment, automatic discharging is realized, fragrance leakage can be effectively avoided, and the piston is stably mounted.

Description

technical field [0001] The invention relates to a toothpaste packaging bottle. Background technique [0002] With the continuous advancement of technology and society, people have put forward higher requirements for the packaging of various daily necessities, and more and more people require that the packaging of the products used can not only meet the requirements of convenient use but also achieve the appearance of beautiful appearance. Need, toothpaste is as people's daily use toiletries, and its packaging is also constantly improved by people, as the invention patent of publication number CN201619795U discloses a kind of pressure pump type packaging bottle, in the technical scheme of this patent, due to the piston and The airtightness of the cooperation between the bottles will cause the piston to not move up in time and affect the stability of the discharge. Another example is that a negative pressure packaging bottle is disclosed in the invention patent with the public...

AI Technical Summary

Problems solved by technology

[0002] With the continuous advancement of technology and society, people have put forward higher requirements for the packaging of various daily necessities, and more and more people require that the packaging of the products used can not only meet the requirements of convenient use but also achieve the appearance of beautiful appearance. Need, toothpaste is as people's daily use toiletries, and its packaging is also constantly improved by people, as the invention patent of publication number CN201619795U discloses a kind of pressure pump type packaging bottle, in the technical scheme of this patent, due to the piston and The airtightness of the cooperation between the bottles will cause the piston to not move up in time and affect the stability of the discharge. Another example is that a negative pressure packaging bottle is disclosed in the invention patent with the publication number CN102502060A. There are also some defects in the technical solution. For example, the connection between the pump body and the bottle body is not firm enough, and it is easy to fall off during the pressing process. Wait, these defects have seriously affected the use effect and product quality

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