The outer upper shield ferrule structure of beverage bottle cap
Technical field
The utility model belongs to Food Packaging technology field, relates to a kind of outer upper shield ferrule structure of beverage bottle cap.
Background technology
Bottled drink is subject to the favor of customer deeply, the time especially in full summer.In order to strengthen the leak tightness of bottleneck, prevent the secondary pollution that may cause in the link such as filling, storage, transport, the sealing effectiveness of the outer upper shield ferrule structure of beverage bottle cap is most important, also will take into account the complexity that bottle cap is opened simultaneously.At present, common Bottle cap structure is generally directly screw on lid at bottleneck, is difficult to meet operating needs.Recently, also occurred that some comprise the bottle cap of two separate caps, its major defect existed is that the spiral cover angle instability of inner cap causes external diameter increase or reduce, and easily takes off lid, bullet lid, falls lid etc. during upper shield limited to enclosing cover elastic deformation.
Summary of the invention
The utility model is for the problems referred to above, and provide a kind of outer upper shield ferrule structure of beverage bottle cap, this bottle cap design concept is ingenious, reasonable, very conveniently opens and screws, and production process is smooth and easy especially.
According to the technical solution of the utility model: a kind of outer upper shield ferrule structure of beverage bottle cap, it is characterized in that: comprise outer upper shield, described outer upper shield circumferential surface is laid with some projections, outer upper shield inwall is provided with some groups of fins, described fin axially be arranged in parallel along outer upper shield, and often in group fin, between adjacent two fins, spacing is equal.
As further improvement of the utility model, described fin has three groups, and three groups of fins are uniform is arranged at outer upper shield inner wall surface, often comprises seven fins in group.
As further improvement of the utility model, the transversal surface of described projection is arc-shaped
Technique effect of the present utility model is: this practical design inwall parabolic structure can effectively absorb inner cap deformed threads, opens torsion after reducing upper shield; Each 7 nickings in inner 3 places of this practical design can effectively prevent skidding of uncapping, lid-locking type, not bullet lid; This practical design button bit position effectively can prevent the de-lid of enclosing cover, bullet lid; Adopt outer upper shield can available protecting inner cap.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is three-dimensional structure diagram of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is further described.
In Fig. 1 ~ 3, comprise outer upper shield 1, protruding 1-1, fin 1-2 etc.
As shown in Fig. 1 ~ 3, the utility model is a kind of outer upper shield ferrule structure of beverage bottle cap, comprise outer upper shield 1, described outer upper shield 1 circumferential surface is laid with some protruding 1-1, outer upper shield 1 inwall is provided with some groups of fin 1-2, described fin 1-2 axially be arranged in parallel along outer upper shield 1, and often in group fin 1-2, between adjacent two fins, spacing is equal.After fin adopts this setup can guarantee to match with inner cap, during twist-off closure, inner cap uniform force, prevents skidding of uncapping.
Fin 1-2 has three groups, and three groups of fins are uniform is arranged at outer upper shield 1 inner wall surface, often comprises seven fin 1-2 in group.
The transversal surface of protruding 1-1 is arc-shaped, and when guaranteeing twist-off closure, hand has good acting point, guarantees uniform force application.
Outer upper shield 1 button bit place and inner cap nicking lower end interlock, and outer upper shield 1 lid-locking type, not bullet lid effectively can be guaranteed in this position.Outer upper shield 1 inside lower end is enlarging shape, so that cover in can outer upper shield 1 alignment being pressed in easily.
Working process of the present utility model is as follows: the utility model product in use with inner cap with the use of, inner cap is tightened in drinking bottle mouth, outer upper shield 1 is installed with by capping machine and covers in interior, outer upper shield 1 is being installed with in process it is significant to note that guarantee that the fin 1-2 of outer upper shield 1 inwall is matched with in the groove of inner cap surface, guarantee turning in outer upper shield 1 process, inner cap synchronous axial system.