A kind of plastic bottle closure structure
Technical field
The utility model is related to a kind of plastic bottle closure structure.
Background technology
Bottle cap structure is widely used in the sealing of various drinking water.Bottle cap structure include the bottle cap that can cooperate with
Bottleneck.In the prior art, bottle cap is connected through a screw thread with bottleneck, and during bottle cap is tightened or unscrewed, user must
Bottle cap must be rotated a few so that this tightens or unscrew the operation inconvenience of bottle cap.
The content of the invention
The purpose of this utility model is directed to the deficiencies in the prior art, there is provided a kind of plastic bottle closure structure, and it is tightened or twists
The simple operation of loose bottle cap.
Plastic bottle closure structure of the present utility model, including bottleneck and bottle cap, the bottle cap have be integrally formed and connect each other
The covering part and locking part for connecing, the intracavity sidewall of covering part is smooth anchor ring, and locking part is circular and coaxially sets with covering part
Put, and the radius ratio covering part of locking part intracavity sidewall is big, locking part intracavity sidewall have at least two inwards extend the
One locking piece, accordingly, the bottleneck lateral wall has for the second locking piece with the first locking piece snapping, the first locking piece
The top side of one end is provided with downward-sloping importing oblique angle, and the innermost point of the first locking piece is more than covering part with the distance of bottle cap axis
Madial wall radius.
Specifically, the quantity of first locking piece is three, and it is uniformly distributed along the circumference of locking part intracavity sidewall.
Specifically, the thickness of first locking piece is a, 1.5mm≤a≤2.5mm.
Specifically, the one end away from the importing oblique angle on the first locking piece top is provided with the limit extended towards Bottle cap top
Position portion.
Specifically, the angle of inclination at the importing oblique angle is b, 5 °≤b≤9 °.
Specifically, second locking piece is uniformly distributed along the circumference of bottleneck lateral wall
Compared with prior art, the beneficial effects of the utility model are:
Plastic bottle closure structure of the present utility model, including bottleneck and bottle cap, the bottle cap have be integrally formed and connect each other
The covering part and locking part for connecing, the intracavity sidewall of covering part is smooth anchor ring, and locking part is circular and coaxially sets with covering part
Put, and the radius ratio covering part of locking part intracavity sidewall is big, locking part intracavity sidewall have at least two inwards extend the
One locking piece, accordingly, the bottleneck lateral wall has for the second locking piece with the first locking piece snapping, the first locking piece
The top side of one end is provided with downward-sloping importing oblique angle, and the innermost point of the first locking piece is more than covering part with the distance of bottle cap axis
Madial wall radius.Because the intracavity sidewall of covering part is not provided with screw thread, but smooth anchor ring, in closure or open bottle cover
During, without bottle cap is rotated into a few such as prior art, and only bottle cap need to be turned to its first locking piece with bottleneck
Second locking piece snapping releases snapping, closure or the unlatching of bottle cap can be realized, using convenient.
Brief description of the drawings
Fig. 1 is the stereogram of bottle cap of the present utility model;
Fig. 2 is the upward view of bottle cap of the present utility model;
Fig. 3 is the sectional view along A-A sections along Fig. 2;
Fig. 4 is the top view of bottleneck of the present utility model.
Description of reference numerals:
1. covering part, 2. locking part,
3. the first locking piece, 31. import oblique angles,
32. limiting sections, 4. seal ring piece,
5. bottleneck, 51. second locking pieces,
52. bottleneck edges.
Specific embodiment
The utility model is further described with the following Examples.
The plastic bottle closure structure of the present embodiment includes bottleneck 5 and bottle cap.With reference to Fig. 1, Fig. 3, bottle cap have be integrally formed and
The covering part 1 and locking part 2 being connected to each other.The intracavity sidewall of covering part 1 is smooth anchor ring.Locking part 2 is circle with covering part 1
Shape is simultaneously coaxially disposed, and the radius ratio covering part 1 of the intracavity sidewall of locking part 2 is big.
With reference to Fig. 2, Fig. 3, the intracavity sidewall of locking part 2 has three the first locking pieces 3 for inwards extending, and it is along sealed
The circumference of the intracavity sidewall of portion 2 is uniformly distributed, inner side of the innermost point of the first locking piece 3 with the distance of bottle cap axis more than covering part
Wall radius.Accordingly(See Fig. 4), the lateral wall of bottleneck 5 has for the second locking piece 51 with the snapping of the first locking piece 3, and its
It is uniformly distributed along the circumference of the lateral wall of bottleneck 5.The thickness of the first locking piece 3 is a, a=2mm.The top side of the one end of the first locking piece 3
Downward-sloping importing oblique angle 31 is provided with, and it is provided with the limiting section extended towards Bottle cap top away from the one end for importing oblique angle 31
32.The angle of inclination for importing oblique angle 31 is b, b=7 °.The roof of covering part 1 is provided with two seal ring pieces 4 being coaxially disposed.
The plastic bottle closure structure occupation mode of the present embodiment is as follows:
Second locking piece 51 of bottleneck 5 is directed at the breach between two the first locking pieces 3 of bottle cap, and bottle cap is enclosed within
Outside bottleneck 5, now, the tip for importing oblique angle 31 is corresponding to the basal surface position of the second locking piece 51, and bottleneck edge 52 is contacted
Two seal ring pieces 4.Then, keep bottleneck 5 to maintain static, bottle cap edge is rotated clockwise, the importing oblique angle of the first locking piece 3
31 surface and the bottom surface sliding contact of the second locking piece 51.There is angle of inclination due to importing oblique angle 31, rotated in bottle cap
During, bottle cap is mutually axially close to bottleneck 5 so that bottleneck edge 52 enter covering part 1 two seal ring pieces 4 it
Between, until the limiting section 32 of the first locking piece 3 is touched in the end of the second locking piece 51.Now, two seal ring pieces 4 are by bottleneck side
Edge 52 is tightly clamped, and the first locking piece 3 and the mutual snapping of the second locking piece 51, bottle cap is formed liquid-tight envelope with bottleneck 5.
Finally it should be noted that above example is only used to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected scope, although being explained to the utility model with reference to preferred embodiment, this area it is general
It is logical it will be appreciated by the skilled person that can be modified to the technical scheme of utility model or equivalent, without deviating from this reality
With the spirit and scope of new technique scheme.