CN215014366U

CN215014366U - Dilatation formula knapsack

Info

Publication number: CN215014366U
Application number: CN202121666818.9U
Authority: CN
Inventors: 王志峰; 董练; 黄珍海
Original assignee: Quanzhou Tianqin Bag Co ltd
Current assignee: Quanzhou Tianqin Bag Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-12-07
Anticipated expiration: 2031-07-22

Abstract

The application relates to the field of bags, in particular to an expansion type backpack which comprises a first backpack body, wherein folding edges for expanding the volume are arranged on the peripheral side of the first backpack body; the peripheral side of the first bag body is provided with an expansion zipper which forces the folded edge to be folded; the dilatation zipper extends along the circumferential direction of the first bag body. The expansion zipper is pulled to fold or unfold the folded edge, so that the volume of the backpack can be changed as required, and the backpack is suitable for people to use outside.

Description

Dilatation formula knapsack

Technical Field

The application relates to the field of bags and suitcases, in particular to an expansion type backpack.

Background

The backpack refers to a bag carried on the back, and the materials of the backpack are diversified, and fashionable trends are led by suitcases with the textures of leather, plastic materials, terylene, canvas, nylon, cotton, hemp and the like. With the ever-increasing standard of life and consumption of people, various backpacks become indispensable ornaments beside people.

In view of the above-mentioned related technologies, the inventor thinks that when going out for a long distance, people can select backpacks with different volumes to carry according to the number of carried articles, but this also causes people to select between backpacks with different volumes, which increases the trouble of going out, so that there is an urgent need for a backpack with a volume that can be changed according to the need.

SUMMERY OF THE UTILITY MODEL

In order to make the volume of knapsack can alternate as required, this application provides an expansion formula knapsack.

The application provides a dilatation formula knapsack adopts following technical scheme:

an expansion type backpack comprises a first backpack body, wherein folding edges for expanding the volume are arranged on the peripheral side of the first backpack body; the peripheral side of the first bag body is provided with an expansion zipper which forces the folded edge to be folded; the dilatation zipper extends along the circumferential direction of the first bag body.

Through adopting above-mentioned technical scheme, before going out, if carry article quantity less, alright direct load carry out in first inclusion, if carry article quantity more, with the week side pulling of dilatation zip fastener along first inclusion, the hem is unfolded, the volume of first inclusion increases, alright place the article of a large quantity in first inclusion. Through the setting of dilatation zip fastener and hem, the effect that the pulling dilatation zip fastener realized that the hem is folding or is unfolded to the effect that the volume of realization knapsack can be changed as required.

Optionally, the bag further comprises a second bag body turned over relative to the first bag body and a limiting zipper used for limiting the turning over of the second bag body relative to the first bag body; the limiting zipper extends along the circumferential direction of the first bag body.

Through adopting above-mentioned technical scheme, on the one hand, the cooperation of first inclusion and second inclusion realizes carrying the effect of article wet-dry separation, and the clothing that the people of being convenient for simultaneously will change and wash is separated with clean clothing to reduce the contaminated risk of clean clothing. The second aspect, the setting of the relative upset of second inclusion and first inclusion is convenient for first inclusion and second inclusion to expand to be convenient for people and take the clothing in first inclusion or the second inclusion alone, reduce the clothing that the change was washed and the risk that the confusion was taken to clean clothing.

Optionally, the peripheral side of the second bag body is also provided with the folded edge and the expansion zipper for forcing the folded edge to be folded.

Through adopting above-mentioned technical scheme, realize the volume of second knapsack body and can carry out the effect that changes as required, increase the volume size of this knapsack, the people of being convenient for simultaneously separate the article of different grade type and carry.

Optionally, the inner surfaces of the first bag body and the second bag body are both provided with waterproof layers.

By adopting the technical scheme, the risk that the articles carried by the first bag body and the second bag body are soaked is reduced, and the waterproof capacity of the first bag body and the second bag body is improved.

Optionally, the waterproof layer is a parylene film.

Through adopting above-mentioned technical scheme, the parylene film chemical properties is stable, is the high-quality protective coating that can dampproofing, mould proof, acid-base resistance, resistant irradiation simultaneously, when improving first inclusion and second inclusion life, improves the protective capacities of first inclusion and second inclusion to carrying article.

Optionally, an elastic mesh bag for placing a water cup is arranged on the periphery of the second bag body; and the side wall of the second bag body is provided with a containing bag for containing the elastic grid bag.

Through adopting above-mentioned technical scheme, the elasticity net bag is convenient for carry the drinking cup when going out, provides for the drinking cup and places the region, when need not to carry the drinking cup, accomodates the elasticity net bag in acceping the bag, reduces the risk that the elasticity net bag is scraped brokenly, improves the life of elasticity net bag.

Optionally, a surface of the second bag body is provided with a separation bag, and the surface of the separation bag is provided with a fold portion for volume expansion of the separation bag.

By adopting the technical scheme, the separating bag is convenient for people to place small articles, so that the large articles and the small articles placed in the second bag body are separated, people can find the large articles or the small articles placed in the second bag body conveniently, and meanwhile, the arrangement of the folding parts reduces the risk of the separating bag being broken by being supported, and the service life of the separating bag is prolonged.

Optionally, the surface of the first bag body is provided with a mesh cloth for allowing the inside and outside air to flow through.

Through adopting above-mentioned technical scheme, reduce the clothing that the change was washed and smolder the risk at first inclusion, reduce the remaining risk of peculiar smell in the first inclusion, improve the drying rate of placing the moist clothing in the first inclusion simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the expansion zipper and the folding edge, the expansion zipper is pulled to realize the effect of folding or unfolding the folding edge, and the effect that the volume of the backpack can be changed according to needs is realized, so that people can change the volume of the backpack according to the number of articles to be carried;

2. through the second bag body which is turned over relative to the first bag body, people can conveniently separate the changed and washed clothes from the clean clothes, the risk that the clean clothes are polluted is reduced, and meanwhile, the risk that the changed and washed clothes are mixed with the clean clothes is reduced;

3. the separating bag with the pleat parts is convenient for separating the large articles and the small articles placed in the second bag body, the searching efficiency of the large articles or the small articles is improved, meanwhile, the pleat parts are arranged, the risk that the separating bag is broken by being supported is reduced, and the service life of the separating bag is prolonged.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic view showing the folded and unfolded state of the embodiment of the present application.

Fig. 3 is a schematic diagram for illustrating a state in which the second casing is flipped with respect to the first casing in the embodiment of the present application.

Description of reference numerals: 1. a first bag body; 2. a second bag body; 3. a limiting zipper; 4. folding edges; 5. expanding the zipper; 6. mesh cloth; 7. a separation bag; 71. a fold portion; 8. an article bag; 9. an elastic mesh bag; 10. a receiving bag.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses dilatation formula knapsack. Referring to fig. 1 and 2, an expansion backpack includes a first backpack body 1 having straps, a second backpack body 2 being turned over relative to the first backpack body 1, and a limiting zipper 3 for limiting the turning over of the second backpack body 2 relative to the first backpack body 1, wherein the first backpack body 1 and the second backpack body 2 are provided with folding edges 4 on the peripheral sides, and the folding edges 4 are arranged along the circumferential extension of the first backpack body 1 or the second backpack body 2. The peripheral sides of the first bag body 1 and the second bag body 2 are fixedly sewed with an expansion zipper 5 which forces the folded edge 4 to be folded. The limiting zipper 3 is positioned between the expansion zipper 5 of the first bag body 1 and the expansion zipper 5 of the second bag body 2. The effect that hem 4 is folding or is unfolded is realized to pulling dilatation zip fastener 5, realizes the effect that the volume of knapsack can be changed as required.

Referring to fig. 2, specifically, a side of the first pack 1 having the strap is defined as a back side of the first pack 1, and a side of the first pack 1 facing away from the strap is defined as a front side of the first pack 1. When the limiting zipper 3 limits the second bag body 2 to overturn relative to the first bag body 1, one surface, facing the first bag body 1, of the second bag body 2 is defined as the back surface of the second bag body 2, and one surface, far away from the first bag body 1, of the second bag body 2 is defined as the front surface of the second bag body 2. In other embodiments, the first bag body 1 and the second bag body 2 are both provided with a plurality of mutually-turned sub-bag bodies, the plurality of mutually-turned sub-bag bodies are combined to form the first bag body 1 and the second bag body 2, and the connection modes between the adjacent sub-bag bodies can be connected and fixed through the limiting zipper 3.

Referring to fig. 2, the opening of the first bag body 1 is located on the front side of the first bag body 1, the mesh cloth 6 is sewn and fixed on the front side of the first bag body 1, the mesh cloth 6 is located on the opening of the first bag body 1, and the mesh cloth 6 is used for allowing the inside and outside air to flow through, so that the risk of odor residue in the first bag body 1 is reduced, and the drying speed of damp clothes placed in the first bag body 1 is increased. The opening of the second bag body 2 is positioned on the back surface of the second bag body 2, and the openings of the first bag body 1 and the second bag body 2 are opened and closed through zippers. Two separation bags 7 are sewn and fixed on the back surface of the second bag body 2, and the separation bags 7 are provided with folding parts 71, so that the number of articles loaded in the separation bags 7 is increased, and the risk that the separation bags 7 are broken by being propped is reduced.

Referring to fig. 2, the inner surfaces of the first bag body 1 and the second bag body 2 are provided with waterproof layers which are parylene films, the parylene films are stable in chemical performance and are high-quality protective coatings capable of resisting moisture, mildew, acid and alkali and radiation, the service lives of the first bag body 1 and the second bag body 2 are prolonged, and meanwhile the protection capability of the first bag body 1 and the second bag body 2 on carried articles is improved. The starting point and the end point of the limiting zipper 3 are both positioned on the same side of the first bag body 1 or the second bag body 2.

Referring to fig. 3, a plurality of article pockets 8 are sewn and fixed to the front surface of the second pack 2, and the article pockets 8 are used for accommodating small articles such as electronic articles and keys. An elastic grid bag 9 for loading a water cup is sewn and fixed on the outer periphery of the second bag body 2, and the elastic grid bag 9 is positioned between the expansion zipper 5 of the second bag body 2 and the front surface of the second bag body 2. A storage bag 10 for storing the elastic lattice bag 9 is sewn and fixed to the outer peripheral side of the second bag body 2, and the storage bag 10 is positioned between the expansion zipper 5 of the second bag body 2 and the front surface of the second bag body 2.

The implementation principle of an expansion type backpack of the embodiment of the application is as follows: before going out, people can pull the limiting zipper 3 to place articles in the first bag body 1 or the second bag body 2. When the article of carrying for changing and washing the clothing, people pulling dilatation zip fastener 5 makes hem 4 unfold, and the volume of first inclusion 1 and second inclusion 2 increases, alright will change and wash the clothing and place in first inclusion 1 or second inclusion 2, alright carry and change and wash the clothing and go out, in first inclusion 1 and second inclusion 2 can be packed into respectively to follow-up clothing and the clean clothing of changing and washing, reduce the risk of the clean clothing of clothing pollution that changes and wash.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An dilatation formula knapsack which characterized in that: the bag comprises a first bag body (1), wherein a folding edge (4) for expanding the volume is arranged on the peripheral side of the first bag body (1); an expansion zipper (5) for forcing the folded edge (4) to be folded is arranged on the peripheral side of the first bag body (1); the expansion zipper (5) extends along the circumferential direction of the first bag body (1).

2. The expandable backpack of claim 1, wherein: the bag further comprises a second bag body (2) which is overturned relative to the first bag body (1) and a limiting zipper (3) which is used for limiting the second bag body (2) to overturn relative to the first bag body (1); the limiting zipper (3) extends along the circumferential direction of the first bag body (1).

3. The expandable backpack of claim 2, wherein: the peripheral side of the second bag body (2) is also provided with the folded edge (4) and the expansion zipper (5) for forcing the folded edge (4) to be folded.

4. The expandable backpack of claim 2, wherein: waterproof layers are arranged on the inner surfaces of the first bag body (1) and the second bag body (2).

5. The expandable backpack of claim 4, wherein: the waterproof layer is a parylene film.

6. The expandable backpack of claim 2, wherein: an elastic mesh bag (9) for placing a water cup is arranged on the periphery of the second bag body (2); and a containing bag (10) for containing the elastic grid bag (9) is arranged on the side wall of the second bag body (2).

7. The expandable backpack of claim 2, wherein: the surface of the second bag body (2) is provided with a separation bag (7), and the surface of the separation bag (7) is provided with a fold part (71) for extending the volume of the separation bag (7).

8. The expandable backpack of claim 1, wherein: the surface of the first bag body (1) is provided with a mesh cloth (6) for circulating air inside and outside.