CN2216042Y

CN2216042Y - Bag with automatic closing air valve

Info

Publication number: CN2216042Y
Application number: CN 94245194
Authority: CN
Inventors: 陈天佑
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-25
Filing date: 1994-11-25
Publication date: 1995-12-27
Anticipated expiration: 2004-11-25

Abstract

The utility model provides a convenient and practical containing bag with an automatic closing air tap. The outside of a containing bag body which is oppositely folded is provided with a V-shaped air tap which is communicated with an inflating pore canal that is prearranged on the containing bag body; the wall surface of the air tap has an outer closing structure with double layers, and an air sac is formed on the wall surface of the air tap; the air sac is communicated with the inner of the bag body. At the time of inflation, an inserting tube is inserted in the V-shaped air tap. After the inflation, the bag body is inflated, and inner pressure enters the air sac. When the inserting tube is drawn, the V-shaped air tap and the inflating pore canal are automatically closed by the air sac and pressure acting on the two sides of the inflating pore canal, and effect that poured and filled objects can not back leak is achieved.

Description

Bag with automatic closing air valve

The utility model relates to a kind of utensil that is installed in, but particularly a kind of being exclusively used in is installed in gas or the employed bag that is installed in coupler lock valve of liquid.

At present, the bag that is used for splendid attire gas or liquid has following three classes, and the first kind is a soft bag with filling exit neck, after gas or filling liquid finish, mode with cord or sack self tangled up and knotted is sealed sack, prevents the leakage of material in it.The more in use inconvenience of this kind splendid attire bag, and, be very easily to sew a part in the knotting process at bundle.

The 2nd class is the splendid attire bag that carries out heat sealing after the employing can, such as various fruit juice, the packing of milk and some liquid seasonings all is like this, but this kind packaging bag not only needs the heat sealing equipment of adapted, and, must adopt the meltable sticking plastic film of purpose made to make bag, be subjected to bigger restriction in the use.

The 3rd class is a kind of Puffer-type toy, its body one side be provided with one provide gas filed tracheae, the inflation finish after, adorn or be screwed an obstruction at tracheae opening part plug, such as, the moulding inflatable toys of the hollow that plastic film is made all adopt this kind structure mostly, its shortcoming be it can not or inconvenience be used for the inner wrapping of smallclothes, air-tightness is relatively poor, not too be suitable for the splendid attire of liquid.

More than another common shortcomings of a few class splendid attire bags be that they substantially can not pressure-bearing, the pressure of irritating medium in promptly is very little because, the easier leakage under interior pressure effect of the closure part of above structure.Especially can not rely on bag self and the interior oneself of pressure to seal.

The purpose of this utility model just is to overcome the above-mentioned shortcoming and defect of existing in prior technology, and provides a kind of simple in structure, convenient and practical reliably after filling presses that the having of good sealing effect in sealing duct can be from the bag that is installed in of locking valve automatically in it.

The purpose of this utility model is to realize by following technical scheme:

The one V-arrangement valve that is connected with the inflation duct is arranged in the encapsulation bag that the is folded in half into outside that is installed with the inflation duct, the wall at valve place is double-deck outer closure structure and forms an air bag, air bag communicates with bag inside, during inflation, insert in the V-arrangement valve by intubate, the interior pressure after inflation back bag bulging is got up can enter air bag, after intubate is inserted out, air bag and the pressure that acts on inflation both sides, duct is then automatically with V-arrangement mouth and inflation duct sealing, do not return leakage effect to reach filling thing in it.

Therefore: remarkable result of the present utility model is:

The 1st: because after charging gas, liquid, the inflation pressure effect within it of position, duct under voluntarily the sealing, thereby both exempted operation such as bundle system, knotting, hot melt obstruction and corresponding envelope is pricked utensils, the corresponding again cost that reduced especially has the fine sealing effectiveness of self automatic osed top.

The the 2nd: simple in structure, convenient and practical.

The the 3rd: have inflation, seal the advantage that one-time continuous is finished, not only can reduce charging the stream damage of thing when bundle is, and can enhance productivity.

The the 4th:,, have comformability preferably so long as the bag that soft air-tightness material is made is all applicable because it is inner pressure self-isolation.

Concrete structure of the present utility model is realized by the following examples and accompanying drawing thereof:

Fig. 1 is a plane structure chart of the present utility model.

Longitudinal sectional drawing when Fig. 2 is the utility model inflation.

Result of use figure when Fig. 3 is the utility model inflation.

Fig. 4 is the result of use figure after the utility model inflation.

Below in conjunction with accompanying drawing 1-4 concrete structure of the present utility model is described in detail:

The utility model has a doubling and the sticking soft hollow bag 1 of all bandings, it is characterized in that: two invagination lateral margin thin slices 11 that recline are mutually arranged in the inside of bag 1, at the two invagination lateral margin thin slices 11 of fitting an inflation duct 111 arranged vertically, inflation duct 111 connects with the valve 12 in bag 1 outside, and valve 12 is for sandwich structure and form the air bag 121 that is conducted with bag inner chamber 13.Referring to Fig. 1 to Fig. 4

Architectural feature of the present utility model also is

Soft valve 12 is V-shaped, the periphery of valve 12 is double-layer seal formula structure, gas port 1211 places of air bag 121 communicate with bag 1 inside, are parallel with the foldable plane of hollow bag 1 or are 90 by the sealing direction in sticking V-arrangement valve 12 that encloses the hollow bag 1 that constitutes of the plastic cement of symmetry or rubber film doubling envelope and the inflation duct 111 that communicates with the V-arrangement valve and spend.Referring to Fig. 1 to Fig. 4

Using method of the present utility model as shown in Figure 3 and Figure 4

When within desire is to bag 1, carrying out filling gas or liquid, can borrow an intubate 2 to insert within the bag 1 through inflation duct 111 by V-arrangement valve 12, inflation duct 111 is supported comes, so, can be by intubate 2 gas or liquid be full of and enters in the bag 1, to reach the purpose of filling gas or liquid; In the time of intubate 2 can being detached valve 12 after being full of, shown in the 4th figure, being positioned at the gas of bag 1 or the pressure of liquid this moment can oppress inflation duct 111 by the both sides in inflation duct 111 by nature simultaneously, makes its wall reply the blocking of fitting; Part gas or liquid in the bag 1 will be full of in the air bag 121 that enters its both sides by the gas port 1211 that is connected with bag inside in the valve 12 simultaneously, can oppress the interior sidewall surface of inflation duct 111 and V-arrangement valve 12 automatically once more, because air-filled pore 111 also can form wrinkle shape because of the effect of bag welding and pressure, thereby can form effect with multiple locking, guarantee that to reach gas-liquid never returns purpose leakage; Otherwise, as desire the gas in the bag 1, liquid are extracted out in bag 1, can relend by an intubate 2 and insert in the inflation ducts 111 by valve 12, air-filled pore pipe 111 is supported once more come, make gas, liquid scurry out outside the bag 1.

In addition, because valve 12 shapes are the shape of a vee shape, so its intubate 2 that can adapt to all size is used, rubber or plastic material that the material of valve 12 can be identical or different with bag 1, the bag 1 of the various materials of also can arranging in pairs or groups and various Different Rule shapes uses.

Claims

But the bag that is installed in that 1, has the coupler lock valve, the sticking soft hollow bag (1) of one doubling and all bandings is arranged, it is characterized in that: two invagination lateral margin thin slices (11) that recline are mutually arranged in the inside of bag (1), at the two invagination lateral margin thin slices (11) of fitting an inflation duct (111) arranged vertically, inflation duct (111) connects with the valve (12) in bag (1) outside, and valve (12) is for sandwich structure and form the air bag (121) that is conducted with bag inner chamber (13).
But 2, according to the described bag that is installed in of claim 1 with coupler lock valve, it is characterized in that: soft valve (12) is V-shaped, the periphery of valve (12) is double-layer seal formula structure, the gas port (1211) of air bag (121) is located to communicate with bag (1) inside, is parallel with the foldable plane of hollow bag (1) or is 90 by the sealing direction in sticking V-arrangement valve (12) that encloses the hollow bag (1) that constitutes of the plastic cement of symmetry or rubber film doubling envelope and the inflation duct (111) that communicates with the V-arrangement valve and spend.