CN2043227U

CN2043227U - Leakage-free sealing inner cap

Info

Publication number: CN2043227U
Application number: CN 88214888
Authority: CN
Inventors: 张宁; 彭晓兰
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-10-17
Filing date: 1988-10-17
Publication date: 1989-08-23

Abstract

The utility model discloses a leakage-free sealing inner cap, which is the ideal sealing inner cap of a container containing easy leakage or airtight product. The utility model is particularly suitable for the sealing inner cap of liquid product packing bucket or bottle. The utility model has the advantages of wide ranges of application, easy fabrication, low cost, good sealing effect. The leakage-free sealing inner cap is provided with more favorable mechanical structure compared with the caps of sealing ring type, bottle stopper type and withdrawing type. The sealing surface of the leakage-free sealing inner cap is more reasonable. The leakage-free sealing inner cap has low requirements of accuracy, surface finish, central line of screw thread, uniformity of thickness, etc to the bucket, the bottle opening and the sealing cap of the utility model. The utility model is easy to match existing bucket and bottle. The open and shut of the cover is convenient. The multiplex coefficient of the leakage-free sealing inner cap is high.

Description

Leakage-free sealing inner cap

The present invention can or need the container of fully enclosed product to carry out the novel ne-leakage inner sealing lid of leak free to the splendid attire easy to leak for a kind of, is specially adapted to the inner sealing lid of liquid product packaging bucket, bottle.

At present, after the product of easy to leak is packed with bucket, bottle, quite serious seepage often takes place because of the flap sealing is bad in handling process; Therefore the home and abroad is planted the incident of paying compensation for that reason causes and is often taken place.In order to prevent loss and the waste in handling process, the invention provides a kind of existing certain intensity, flexible again and toughness and air-tightness novel ne-leakage inner sealing lid good, that multiplexing coefficient is higher.Now habitual bucket, bottle be polyolefin plastics seal ring type, the bottle stopper type made and move back three kinds on the type of pulling out with inner sealing lid.The precision to bung, enclosing cover and inner cap itself of seal ring type, degree of finish, straight and even degree, thread center's line and thickness degree of uniformity etc. all require very high, as long as an out of reach requirement is arranged, and will seepage; Though bottle stopper type the aspects such as straight and even degree of bucket, bottleneck are required is not very high, because bucket, the bottleneck inwall can not be very straight and even, also can not be very round, the hardness of plastics inner cap is bigger again, though certain tightness is arranged, can not play good sealing function; Move back the type of pulling out because of its contact surface little, pressure is big, so effect than last two kinds good, but it requires all tighter to the precision of the cooperation of exterior and interior cover, processing and degree of finish and inner cap material, and must firmly cover when using tight, this has just brought inconvenience to opening---and be not easy to pull out, historical facts or anecdotes border benefit and result of use are not very desirable.I am intrinsic to have obtained Patent right air cushion type bucket bottle inner sealing lid (patent No. 85204607) though sealing property increases, and structure is not quite reasonable, and multiplexing coefficient is low, and cost is higher, and the historical facts or anecdotes border is of poor benefits.The present invention than having more superior mechanical structure and excellent sealability and higher multiplexing coefficient, guarantees the safety of packaged product in the handling process with them.

For reduce present bucket, bottle is packaged in loss and waste in the carrying, overcome imperfection and the shortcoming such as difficulty of processing big of inner cap on geometry, special propose a kind of rational in infrastructure, sealing property is splendid, cost is low, easy to process, to enclosing cover, the bucket bottleneck is less demanding and multiplexing coefficient is higher, open and be easy to novel ne-leakage inner sealing lid, to remedy present loss.

Novel ne-leakage inner sealing lid have drawn from natural or artificial High molecular material and synthetic material (as plastics, rubber etc.) form through methods such as injection mouldings.This lid is served as reasons to have the lid of a through hole on the wall with certain intensity at least and have the good skin of certain intensity, elasticity, toughness and air-tightness and is fitted into one hermetically at sticking part, forms the inner cap of full gas of inner envelope and outer A face projection.Make for High molecular material or synthetic material with certain intensity the lid of this lid (1), (2), (3), according to the structure of bucket, bottle and form and the shape that geometric configuration etc. is selected or design is fit to, its physical dimension is decided according to supporting bucket, the physical dimension of bottleneck, and (2) and lid are along the through hole (4) that one or more circle or other shape are arranged on the lid wall (1) between (3) at the bottom of the lid; Make by good membranaceous natural or artificial high molecular synthetic material (as plastics, rubber etc.) in order to have certain intensity, elasticity, toughness and air-tightness for the skin of this lid (5), with heat seal or other method itself and lid are fit together hermetically on the week edge of sticking part (6), form the inner cap of full gas (7) of inner envelope and outer A face projection.

After product is put into bucket, bottle, cover inner cap, when screwing or compressing the enclosing cover (10) that cooperates with inner cap (outside cover and can have a little concave surface (12) to entangle the outer A face of inner cap, make it direction motion) towards regulation, the outer A face of inner cap produces deformation, gas (7) is pressed to (9) by through hole (4) in will covering, outer B face is close to and is pushed down sealing surface (8), because the air chamber volume in the inner cap constantly dwindles, pressure just increases thereupon, sealing surface (8) is under the air-sprung effect that pressure increases gradually, and bucket, bottleneck inner wall sealing is dead.Identical because of covering interior each point pressure, and this lid outer (5) can automatically be adjusted compensation and produce corresponding deformation by positice ground effect and reach the optimal seal effect according to the defective of the trueness error size of bucket, bottleneck and even bucket, bottleneck, so sealing property ideal extremely.Can select common enclosing cover for use with the supporting enclosing cover of inner cap, also can select the little concave surface enclosing cover of recessed, flat, the protruding three kinds of patterns of branch for use, also can select threadless compression type enclosing cover for use; Select the enclosing cover of different types to cooperate with inner cap during use as required, the gas pressure intensity in the control inner cap is to reach the optimal seal effect.The present invention can also be combined into inner cap with enclosing cover can be at the fabricate block of the up and down sleeve structure in positive stop lug boss (14) lining along (13).

Novel ne-leakage inner sealing lid has following advantage:

1, be widely used, no matter be easy to leak or need fully enclosed industrial and agricultural products, daily chemical product, or medicine, food etc. all are suitable for;

2, than seal ring type, bottle stopper type, move back the type of pulling out and have more superior mechanical structure, good seal performance;

3, manufacturing is easy, and is less demanding to the precision of bucket, bottleneck, enclosing cover and inner cap itself, straight and even degree etc., with existing existing bucket, supporting being easier to of bottle;

4, close opening convenient (adopting the screwing type enclosing cover), enclosing cover screws gradually or withdraws from when opening because of it closes, so gas pressure intensity is to increase gradually or reduce in the lid, come trouble can not for the keying cover tape;

5, there is through hole to regulate air pressure, makes each point pressure equalization in the lid, improved the service life and the sealing property of inner cap;

6, cost is low, and multiplexing coefficient height is good in economic efficiency.

The embodiments of the invention accompanying drawings is as follows:

Fig. 1 is the cross-sectional schematic of a kind of embodiment of the present invention; Fig. 2 is the cross-sectional schematic that Fig. 1 cooperates with enclosing cover and bottleneck; Fig. 3 be can with the generalized section of supporting protruding, flat, the matrix enclosing cover of the present invention.The lid of this lid (1), (2), (3) are formed through methods such as injection mouldings by polypropylene, the complex film of the PVDC that outer (5) are coated with for PVA film surface is made, process at the bottom of the lid (2) and lid earlier along the lid that the through hole (4) of four circles is arranged on the lid wall (1) between (3), then the A face and the B face of outer (5) are finalized the design respectively, to reserve the A face of the skin (5) of type again is in the same place along heat seal hermetically in the week of sticking part (6) with B face and lid, form the inner cap of full gas (7) of inner envelope and outer A face projection, can use.

During use, cover inner cap earlier, cap body contacts with bucket, bottleneck (11) along (3) in making, (covering outward to have a little concave surface (12) to entangle the outer A face of inner cap to screw enclosing cover (10) then, make it direction motion towards regulation), the outer A face of inner cap this moment produces deformation, and gas (7) is pressed to (9) by through hole (4) in will covering, outer B face is close to and is pushed down sealing surface (8), i.e. sealing.

Fig. 4 is the cross-sectional schematic of the sleeve structure of the present invention and the combination of a kind of enclosing cover.Process the enclosing cover of positive stop lug boss (14) earlier, then inner cap is inserted in enclosing cover positive stop lug boss (14) along (13), make the inner cap can be up and down, can use in positive stop lug boss (14) the inside along (13).

Fig. 5 is the cross-sectional schematic of another kind of embodiment of the present invention.The lid of this lid (16), (17) are formed through methods such as injection mouldings by polypropylene, make for the PVDC complex film outer (18), process lid (16), (17) earlier, then the A face and the B face of outer (18) are finalized the design respectively, again in sticking part (15) heat seal together with the B face of outer (18) and lid, at last in the edge heat seal hermetically of the week of sticking part (15) together with outer (18) A face and lid, form the inner cap of full gas (19) of inner envelope and outer A face projection, can use.

Claims

1, a kind of novel ne-leakage inner sealing lid that is applicable to sealing splendid attire easy to leak or needs the container of seal products, be specially adapted to the packaging bucket that seals the splendid attire easy to leak or need seal products, the novel ne-leakage inner sealing lid of bottle, it is characterized in that this lid by the lid that has a through hole on the wall with certain intensity at least with have the good skin of certain intensity, elasticity, toughness and air-tightness and fit into one hermetically at sticking part, forms the inner cap of full gas of inner envelope and outer A face projection.