CN212126070U

CN212126070U - Valve port bag

Info

Publication number: CN212126070U
Application number: CN202020453904.0U
Authority: CN
Inventors: 刘士雨
Original assignee: Pingyang Fangyu Packaging Co ltd
Current assignee: Pingyang Fangyu Packaging Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-12-11
Anticipated expiration: 2030-03-31

Abstract

The utility model relates to a valve port bag, including bag body (2) and the valve port that has sack (1) and upright bottom (9), the valve port is whole to be flat tube-shape and is formed through the mutual coincide in both ends by a rectangular sheet's connection piece (3), connection piece (3) set up in sack (1) one side and with bag body (2) structure as an organic whole. An object of the utility model is to provide a valve port bag, the valve port of this kind of valve port bag and bag body structure as an organic whole have avoided the valve port and the bag body can produce the problem in gap.

Description

Valve port bag

Technical Field

The utility model relates to a packing articles for use field especially relates to a valve port bag.

Background

The valve bag, commonly called as a bottom pasting bag, is an international popular packaging bag, is fed from a top or bottom valve port, and is formed into a square body after being filled with materials by adopting special filling equipment, and the stacked bag is neat and attractive, and belongs to an environment-friendly bag.

The valve port of the existing valve bag is fixed on the bag body by various methods, and a gap exists between the valve port and the bag body. The slit presents a problem of poor tightness when the valve bag is actually used: the powder is poured into the bag body at a higher speed, and has certain impact on the bag body, so that the bag body has the tendency of being separated from the valve port; meanwhile, when the bag body is expanded, the bag body also has the tendency of being separated from the valve port. Under the action of the two factors, when powder is filled, a gap is probably formed between the valve port and the bag body, and the powder is leaked only if the gap is formed between the valve port and the bag body because the volume of the powder is extremely small, so that the powder filled in the valve port bag is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve port bag, the valve port of this kind of valve port bag and bag body structure as an organic whole have avoided the valve port and the bag body can produce the problem in gap.

The utility model provides a valve port bag, including the bag body and the valve port that have sack and upright bottom, the valve port is whole to be flat tube-shape and to be formed through the mutual coincide in both ends by the flaky connection piece of a rectangle, the connection piece set up in sack one side and with the bag body structure as an organic whole.

Preferably, the connecting piece comprises two first bending parts and two second bending parts, the two first bending parts are respectively positioned at two sides of the connecting piece, and the two second bending parts are respectively positioned at the middle part of the connecting piece; the valve port is formed by bending the two first bending parts towards the two second bending parts respectively, and the two first bending parts are positioned above the two second bending parts after the bending is finished.

Preferably, the two first bent portions are bonded.

Preferably, the bag body is provided with a pearlized film on the inner surface.

Preferably, the outer surface of the bag body is provided with a printing layer made of environment-friendly paper, and the bag body is fixedly bonded with the printing layer through environment-friendly glue.

Compared with the prior art, the utility model provides a technical scheme has following advantage:

the connecting piece and the bag body which form the valve port are of an integrated structure, the connecting piece is folded to form the valve port, no gap exists between the valve port and the bag body, and the sealing performance of the valve port bag is guaranteed. Use the utility model discloses a when the powder was filled into to the valve port bag, because the valve port of valve port bag is integrative mechanism with the bag body, the leakproofness is good, and the powder can not leak in the air, avoids the human body to inhale the powder simultaneously, has certain environmental protection effect.

Drawings

Fig. 1 is a schematic structural view of the valve bag of the present invention;

FIG. 2 is a schematic view of the structure of the valve bag with the connecting tabs unfolded;

FIG. 3 is a schematic view of the valve bag in an expanded configuration;

fig. 4 is a schematic sectional structure view of the valve bag.

Reference numerals: the bag comprises a bag body 1, a bag body 2, a connecting sheet 3, a first bending part 4, a second bending part 5, a first folding line 6, a second folding line 7, a third folding line 8, a vertical bottom 9, a printing layer 10 and a pearlized film 11.

Detailed Description

The present invention will be further described with reference to the following specific embodiments, but the present invention is not limited to these specific embodiments. It will be recognized by those skilled in the art that the present invention encompasses all alternatives, modifications, and equivalents as may be included within the scope of the claims.

As shown in fig. 1-3, the utility model discloses a valve port bag is demonstrated, including the bag body 2 and the valve port that have sack 1 and upright bottom 9, the valve port is whole to be flat tube-shape and is formed through the mutual coincide in both ends by a rectangular sheet's connection piece 3, connection piece 3 set up in sack 1 one side and with the bag body 2 structure as an organic whole.

The connecting piece 3 comprises two first bent parts 4 and two second bent parts 5, the two first bent parts 4 are respectively positioned at two sides of the connecting piece 3, and the two second bent parts 5 are respectively positioned at the middle part of the connecting piece 3; the valve port is formed by bending the two first bending parts 4 towards the two second bending parts 5 respectively, and the two first bending parts 4 are located above the two second bending parts 5 after bending is completed.

More specifically, the valve bag of this embodiment is bent from the valve bag of fig. 2 along the first folding line 6 toward the bag opening 1, and then bent along the second folding line 7 toward the outside of the bag opening 1, so as to obtain the valve bag shown in fig. 1, and finally bent along the third folding line 8 and fixedly connected to the two first bending portions 4, so as to obtain the valve bag of this embodiment.

Further, the two first bent portions 4 are bonded.

As shown in fig. 4, a pearlized film 11 is further provided on the inner surface of the bag body 2, and mainly plays a role of water-proof and moisture-proof.

Furthermore, a printing layer 10 made of environment-friendly paper is arranged on the outer surface of the bag body 2, and the bag body 2 and the printing layer 10 are fixedly bonded through environment-friendly glue.

Wherein the printed layer 10 is used for printing.

The bag body 2 of the valve bag of the embodiment is made of kraft paper, can be decomposed by microorganisms or various fungi when being discarded, can be completely decomposed into organic matters, carbon dioxide, water and the like within one year, and is harmless to soil.

It is to be understood by persons skilled in the art that the embodiments of the present invention described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The utility model discloses a function and structure principle can modify wantonly under the principle that does not deviate from above-mentioned show.

Claims

1. A valve bag comprising a bag body (2) having a bag mouth (1) and an upstanding base (9), and a valve port, characterized in that: the valve port is integrally in a flat cylindrical shape and is formed by mutually overlapping two ends of a rectangular sheet-shaped connecting piece (3), and the connecting piece (3) is arranged on one side of the bag opening (1) and is integrated with the bag body (2).

2. A valve bag as defined in claim 1, wherein: the connecting piece (3) comprises two first bending parts (4) and two second bending parts (5), the two first bending parts (4) are respectively positioned at two sides of the connecting piece (3), and the two second bending parts (5) are respectively positioned at the middle part of the connecting piece (3); the valve port is formed by bending the two first bending parts (4) towards the two second bending parts (5) respectively, and the two first bending parts (4) are positioned above the two second bending parts (5) after the bending is finished.

3. A valve bag as defined in claim 2, wherein: and the two first bent parts (4) are bonded.

4. A valve bag as defined in claim 1, wherein: the inner surface of the bag body (2) is provided with a pearlized film (11).

5. The valve bag of claim 4, wherein: the printing layer (10) that makes with the environmental protection paper is equipped with on the surface of the bag body (2), the bag body (2) with it is fixed to bond through environmental protection glue between printing layer (10).