Container mouth packaging structure with two layers of sealing covers
A technology of encapsulation structure and sealing structure, applied in the directions of packaging, transportation and packaging, closing, etc., can solve the problems of accidental ingestion of bacteria, affecting physical health, unhealthy drinking methods, etc., and achieve the effect of preventing contamination
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Embodiment 1
[0031] Such as figure 1 As shown, a container mouth packaging structure with two layers of sealing caps is composed of a container mouth 300, an inner sealing cap 200 and an outer sealing cap 100;
[0032] The outer wall of the container mouth 300 is sequentially provided with external threads and anti-theft bosses 310 from the opening to the bottle body;
[0033] The inner surface of the side wall of the inner sealing cover 200 is provided with an internal thread, and the inner surface of the top is provided with an annular sealing groove 400;
[0034] The inner sealing cap 200 is screwed into the container mouth 300 through the internal thread and sleeved on the outside of the container mouth 300, and the upper end of the container mouth 300 is engaged in the annular sealing groove 400 to form a first sealing structure;
[0035] The outer sealing cover 100 is sleeved on the outside of the inner sealing cover 200 , and a second sealing structure is provided between its side ...
Embodiment 2
[0043] Such as figure 2As shown, the difference from Embodiment 1 is that the second sealing structure consists of an annular groove 520 arranged on the outer wall of the container mouth 300 and an annular protrusion arranged on the inner surface of the side wall of the outer sealing cover 100 . The ring-shaped boss 511 is engaged with the ring-shaped groove 520 .
Embodiment 3
[0045] Such as image 3 As shown, the difference from Embodiments 1 and 2 is that the second sealing structure consists of annular grooves 520 and 510 arranged on the outer wall of the container mouth 300 and the inner surface of the side wall of the outer sealing cover 100, and The elastic sealing ring 530 is composed of the inner ring of the elastic sealing ring 530, which is tightly engaged in the annular groove 520 provided on the outer wall of the container mouth 300, and the ring on the inner surface of the side wall of the outer sealing cover 100 The groove 510 is engaged with the outer ring of the elastic sealing ring 510 . And the elastic sealing ring 530 is a rubber ring. After the second sealing structure is opened and closed for a long time, the elastic sealing ring 530 will be worn due to friction, and the rubber ring is elastic and easy to install and replace. Rubber rings are also common, so the replacement process is more convenient.
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