Composite double-layer opening sandwich bottle cap
A composite double-layer, double-opening technology, applied in the directions of cover with auxiliary device, sealing member with auxiliary device, closing, etc., can solve the problem of unable to meet the requirements of different tastes and functions of beverages.
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[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0016] Such as figure 1 As shown, the bottle cap of the present invention includes a lower cover body 1, and an upper cover body 4 is arranged on the lower cover body 1, and the upper cover body 4 is connected with the lower cover body 1 through a connecting point slit 2; There is an openable and closable top cover 6, and the lower part of the lower cover 1 is provided with an internal thread; the lower part of the upper cover 4 is provided with an anti-reflux layer 3 capable of preventing reverse leakage of liquid.
[0017] The connection structure between the top cover 6 and the upper cover body 4 can adopt a lip-turning structure, a spiral structure, or other connection structures.
[0018] Such as figure 2 and image 3 As shown, the anti-reflux layer 3 in the bottle cap of the present invention includes a plate-shaped isolation plate ...
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