CN205770897U - A kind of bottle cap - Google Patents

Abstract

This utility model relates to a kind of bottle cap, and including external bottle cap and interior bottle cap, wherein, external bottle cap is the dome-shaped ectosome with female thread and top mesopore, and interior bottle cap is that body is inserted at the center with draw ring, and center is inserted body and included the bayonet socket of cylinder and insert body.During open bottle cover, first rotate external bottle cap, then pull the draw ring of interior bottle cap, body is inserted at the center of interior bottle cap and pulls out from bottleneck；When closing bottle cap, the center of interior bottle cap being inserted body and is inserted in bottleneck, then rotate and tighten external bottle cap, this utility model can either ensure air-tightness and the tightness of bottle cap, has again the convenient feature of unlatching.

Description

A kind of bottle cap

Technical field

This utility model relates to a kind of bottle cap.

Background technology

At present, a lot of bottled Chinese medicine preparation or emulsion use the structure of two bottle caps to seal；As it is shown in figure 1, outward Bottle cap has female thread, can combine closely with externally threaded bottleneck, but air-tightness is general；Therefore, this kind of external bottle cap is also It is furnished with interior bottle cap, as in figure 2 it is shown, include bayonet socket 21 and insert body 22；As it is shown on figure 3, be that external bottle cap, interior bottle cap are combined with bottle Profile together, interior bottle cap is inserted into inside bottleneck, and the outer surface of interior bottle cap is combined closely with the inner surface of bottleneck, Ensure air-tightness；This bottle cap in use, first opens external bottle cap, is then turned on interior bottle cap.

The problem of existing bottle cap is, is divided into two bottle caps, and after bottle cap is opened, two bottle caps easily lose one of them, loses Lose external bottle cap, interior bottle cap sealing can only be used, fasten the most not；As lost interior bottle cap, then can only use external bottle cap, air-tightness is not Enough, liquid easily evaporates, seepage.It addition, interior bottle cap is limited to space, the ratio being typically designed is relatively thin and little, is difficult to put forth effort during unlatching, It is not easy to open, it is easy to cause interior bottle cap to damage.

Utility model content

In order to overcome the deficiency in above-mentioned existing product, the purpose of this utility model is to provide a kind of bottle cap, and it is ensureing While tightness and air-tightness, it is possible to solve easily losing of existing bottle cap and do not allow problem easy to open with interior bottle cap.

In order to reach above-mentioned utility model purpose, the technical solution of the utility model realizes as follows:

A kind of bottle cap, including external bottle cap and interior bottle cap, wherein, external bottle cap is with female thread and the dome-shaped of top mesopore Ectosome, interior bottle cap is that body is inserted at the center with draw ring, and center is inserted body and included the bayonet socket of cylinder and insert body, wherein, in It is draw ring that the heart inserts the top of body, and middle part is cylindrical bayonet socket, and the bottom of bayonet socket is cylindrical insertion body；

The center of interior bottle cap is inserted body and is embedded in the top mesopore of external bottle cap, and the bayonet socket of interior bottle cap is positioned under external bottle cap Side, the draw ring of interior bottle cap is positioned at the upside of external bottle cap.

Preferably, in affiliated bottle cap, the draw ring of interior bottle cap is annular or spheroidal, and its diameter is more than in external bottle cap top The diameter in hole.

This utility model have employed external bottle cap with top mesopore and interior bottle cap with the structure of draw ring, during open bottle cover, First rotate external bottle cap, then pull the draw ring of interior bottle cap, body is inserted at the center of interior bottle cap and pulls out from bottleneck；Close bottle cap Time, body being inserted at the center of interior bottle cap and is inserted in bottleneck, then rotate and tighten external bottle cap, this utility model can either Ensure air-tightness and the tightness of bottle cap, there is again the convenient feature of unlatching.

The utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.

Accompanying drawing explanation

Fig. 1 is the profile of existing external bottle cap.

Fig. 2 is the profile of existing interior bottle cap.

Fig. 3 is the profile that existing external bottle cap, interior bottle cap combine with bottle.

Fig. 4 is a kind of bottle cap profile of this utility model specific embodiment.

The profile that Fig. 5 is a kind of bottle cap of this utility model specific embodiment and bottle combines.

Detailed description of the invention

See Fig. 4, for a kind of bottle cap profile of this utility model specific embodiment；This bottle cap 40, including external bottle cap 41 With interior bottle cap 42, external bottle cap 41 is with top mesopore 41a and female thread 41b；Interior bottle cap 42 inserts body with draw ring 42a and center 42b, center is inserted body 42b and is included the bayonet socket 42b1 and cylindrical insertion body 42b2 of cylinder；The top of body 42b is inserted at center Having draw ring 42a, there is bayonet socket 42b, bayonet socket 42b1 bottom at middle part for inserting body 42b2, and center is inserted body 42b and be can be plugged in bottleneck Keep air-tightness；The center of interior bottle cap is inserted body 42b and is embedded in external bottle cap by the top mesopore 41a of external bottle cap；Interior bottle cap Draw ring 42a can be annulus, it is also possible to being spheroidal, the diameter of draw ring 42a should be greater than the straight of external bottle cap top mesopore 41a Footpath.

Referring to Fig. 5, for a kind of bottle cap and the bottle profile of this utility model specific embodiment.The outer blank cover strip of this bottle cap There is female thread, can screw with the external screw thread of bottleneck, it is ensured that tightness.The center of interior bottle cap is inserted the bottom of body and is inserted into bottleneck In, fit tightly with bottleneck inwall, it is ensured that air-tightness.

The above, the example that is embodied as the most of the present utility model, but protection domain of the present utility model does not limit to In this, any it is familiar with these those skilled in the art in the range of the technical scheme that this utility model discloses, it is clear that Conversion or replacement, all should belong in protection domain of the present utility model.

Claims (2)

1. a bottle cap, including external bottle cap and interior bottle cap, it is characterised in that external bottle cap is with female thread and the circle of top mesopore Cap-shaped ectosome, interior bottle cap is that body is inserted at the center with draw ring, and center is inserted body and included the bayonet socket of cylinder and insert body, its In, it is draw ring that the top of body is inserted at center, and middle part is cylindrical bayonet socket, and the bottom of bayonet socket is cylindrical insertion body；Interior bottle The center of lid is inserted body and is embedded in the top mesopore of external bottle cap, and the bayonet socket of interior bottle cap is positioned at the downside of external bottle cap, interior bottle cap Draw ring is positioned at the upside of external bottle cap.

Bottle cap the most according to claim 1, it is characterised in that the draw ring of interior bottle cap is annular or spheroidal, its diameter Diameter more than external bottle cap top mesopore.