CN211418269U - Binary packaging valve with pressure device - Google Patents

Abstract

A kind of two-element packing valve with pressure device, including sealing the cup, valve core, valve chamber, spring, bag and liquid guiding pipe, and the elastic sleeve with greater elasticity is coated outside the bag, when the bag is filled with feed liquid, the elastic sleeve will expand to produce the pressure of the bag, thus can realize spraying without adding air pressure into the tank, so at least a part of (or the rest) feed liquid in the packing tank can't be sprayed out to use, only the situation that can be wasted can not happen because of air leakage or insufficient inflation, therefore the utility model has the advantages of more reasonable structure, more reliable use, and can reduce the production cost of the aerosol manufacturer (because of omitting the process of inflation); in addition, as the aerosol packaging can is not filled with gas with larger pressure, the aerosol packaging can is safer to use.

Description

Binary packaging valve with pressure device

Technical Field

The utility model relates to a binary packaging valve.

Background

At present, the binary packaging valve is applied to the spray packaging can, besides the material liquid is filled in the bag, the gas is also filled outside the bag to be used as a pushing source, and therefore the material liquid can be sprayed out by the gas when the dual-purpose packaging valve is used. When a manufacturer actually produces the spray packaging tin, the situation of insufficient inflation can occur; even if the air is sufficient at the time, the packaging can possibly generate air leakage when stored in the future or when the consumer uses the packaging can. It is known that, when the air is not sufficiently inflated or leaked, at least a part of (or the rest of) the liquid in the packaging can cannot be sprayed for use, but can be wasted, so that the reliability of the application of the current dual packaging valve to the aerosol packaging can is relatively poor, and therefore, the applicant improves the structure of the current dual packaging valve.

Disclosure of Invention

An object of the utility model is to overcome prior art's not enough, provide a more reasonable, the more reliable binary packaging valve of use of structure, its stability in use and security through the pressure device from the area improve the aerosol can product.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a binary packaging valve with a pressure device comprises a sealing cup, a valve core, a valve chamber, a spring, a bag and a liquid guiding pipe, wherein an elastic sleeve with elasticity is sleeved outside the bag, and the inner diameter of the elastic sleeve is smaller than the outer diameter of the bag in a natural state.

In a modification of the dual packaging valve with its own pressure means, the elastic sleeve is the same length as the bladder.

Compared with the prior art, the beneficial effects of the utility model are that: because the great elastic sleeve of elasticity on the bag overcoat, when filling into the feed liquid in toward the bag, the elastic sleeve can follow the inflation and produce the pressure in area, just so need not just to fill gas pressure in jar and just can realize the spraying, so just can not appear because of gas leakage or aerify not enough and lead to the unable blowout of at least partly (perhaps surplus) feed liquid in the packing jar to use, can only waste the condition of falling and take place, consequently the utility model discloses a structure is more reasonable, the use is more reliable, can reduce the manufacturing cost of aerosol producer (because of having saved gas filled process) moreover, in addition, owing to need not fill into the gas of great pressure, can make the aerosol packing jar safer when using like this.

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

[ description of the drawings ]

Fig. 1 is a schematic perspective view of a first embodiment of the present invention;

fig. 2 is an assembly diagram of a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first embodiment of the present invention;

fig. 4 is a schematic perspective view of a second embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second embodiment of the present invention.

[ detailed description ] embodiments

The utility model relates to a from binary packaging valve of taking pressure device, as shown in fig. 1 to 5, including sealing cup 1, interior packing ring 2, case 3, valve chamber 4, outer packing ring 5, spring 6, bag 7 and drainage pipe 9, their structure is unanimous with the binary packaging valve that we see at present, and the detail is not repeated here, the difference is that 7 overcoat of bag has the elastic sleeve 8 of stronger elasticity, and its internal diameter is less than this bag 7's external diameter under natural state. Thus, the utility model discloses after using in the spray can, when the producer will be to filling the feeding liquid in jar (bag promptly), elastic sleeve 8 can then expand to this produces from the pressure in area. When the user of the spray can sprays the fog agent for use, the packing valve is pressed, and the feed liquid can be normally sprayed out by the pressure of the elastic sleeve.

From the above, the elastic sleeve 8 with larger elasticity is sleeved outside the bag 7, when the bag is filled with the feed liquid, the elastic sleeve 8 can expand to generate the pressure, so that the spraying can be realized without adding air pressure into the tank, and the condition that at least one part (or the rest) of the feed liquid in the packaging tank can not be sprayed for use and can only be wasted due to air leakage or insufficient inflation can not occur, therefore, the structure of the utility model is more reasonable, the use is more reliable, and the production cost of an aerosol manufacturer can be reduced (the process of inflation is omitted); in addition, as the aerosol packaging can is not filled with gas with larger pressure, the aerosol packaging can is safer to use.

The embodiment shown in figures 1 to 3 is a female valve, whereas the embodiment shown in figures 4 and 5 is a male valve, which has more valve stems 10 than the female valve.

The elastic force of the elastic sleeve 8 is designed according to the size of the tank, the amount of the liquid to be filled and the like, and therefore, the elastic force of the elastic sleeve is determined according to specific products. The elastic sleeve 8 is preferably substantially the same length as the bladder 7, but may be longer or shorter. The elastic sleeve 8 is usually a rubber sleeve, but may be made of other materials with larger elasticity.

Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims. Therefore, the detailed description of the embodiments of the present disclosure is to be construed as merely illustrative, and not limitative of the present disclosure, but rather to limit the scope thereof by the appended claims.

Claims (2)

1. The binary packing valve with pressure device includes sealing cup, valve core, valve chamber, spring, bag and liquid guiding pipe, and features that the bag has elastic sleeve with inner diameter smaller than the outer diameter of the bag in natural state.

2. The dual component packaging valve with pressure device of claim 1, wherein the length of the elastic sleeve is the same as the bladder.

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