Improved moving pipe cover

Abstract

Disclosed is an improved movable pipe cover, comprising a fixed cover, a movable cover and a shell. A flange is arranged at the middle of the external side wall of the fixed cover. The invention is characterized in that a limit bump is arranged on the outer circumference surface of the movable cover; the shell is covered at the outer side of the fixed cover through a sleeve ring; the inner diameter of the sleeve ring is bigger than the outer diameter of the movable cover and smaller than the flange length and smaller than the thickness of the sum of the bump thickness and the outer diameter at the limit bump position of the movable cover; an anti opening seal ring is arranged at lower end of the movable cover; the anti opening seal ring is connected with the lower end of the movable cover by at least two easy-broken connecting rods; the lower end of the anti opening seal ring is fixed at the outer side surface of the movable cover. Comparing with the prior art, the invention has the advantage that the shell can not be taken away from the movable cover which has a good safety performance; the product quality can be guaranteed due to the arrangement of the anti opening sealing ring; a bigger fluid passage ensures enough discharge which is convenient for automatic filling and operation of the movable cover by the users.

Description

technical field [0001] The invention relates to a sealing device for filling and drinking containers, and more particularly relates to an improved sports tube cap. Background technique [0002] Existing containers, especially flexible packaging containers, the sports tube cover includes a fixed cover and a movable cover, and generally also includes an outer cover for dust-proof and hygienic needs. However, the water outlet channel between the existing fixed cover and the movable cover is relatively narrow, so the flow rate is small, and it is inconvenient for users to drink. [0003] Disclosed a kind of valve type novel bottle cap as Chinese patent document CN2327637 " valve type novel bottle cap ", comprises fixed cap, movable cap and outer cover. The small end of the fixed cover is provided with a small cylinder supported by the connection point based on the fixed cover. The movable cover is set on the small end of the fixed cover and can be moved. The cover surface of th...

AI Technical Summary

Problems solved by technology

[0004] However, the sports tube cover of this structure has the following disadvantages: the outer cover can be removed from the movable cover and placed separately, so it is relatively easy to lose, or be stained with dirt, and it is also easy to be stuffed into the mouth by children, causing accidents and cannot meet the safety requirements. Need; there is no anti-illegal opening device, which cannot effectively ensure that the container is not opened before the user obtains it, and the quality of the product in the container cannot be guaranteed. After the container is used up, it is easy to be reused by people for counterfeiting; the liquid outlet channel is small , the flow rate is relatively small, and it is inconvenient to use

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