CN210158164U - Knapsack capable of expanding containing space - Google Patents

Abstract

The utility model belongs to the technical field of backpacks, in particular to a backpack with expandable storage space, which comprises a first storage box and a second storage box which is symmetrically arranged, wherein the first storage box and the second storage box are connected through a connecting belt, the outer edge of the first storage box is sewed with a single-side zipper a, the outer edge of the second storage box is sewed with a single-side zipper b, and one side end surface of the second storage box, which is far away from the first storage box, is fixedly connected with a strap; break away from unilateral zip fastener an and unilateral zip fastener b through first zip fastener head to outwards rotate first containing box and second containing box and open, then with the folding box upwards pull-up expansion, can effectively increase the storage space, outwards stimulate picture peg and plug again, the braid over braid is played in by the elasticity rolling box, and with picture peg and plug grafting block, make the braid over braid connection of first containing box and second containing box both sides elasticity rolling box, form the handle, the person of being convenient for carries and draws.

Description

Knapsack capable of expanding containing space

Technical Field

The utility model belongs to the technical field of the knapsack, specifically be a knapsack that relates to an expanded storage space.

Background

The backpack is generally used for carrying articles in a convenient and comfortable manner, the backpack refers to the general name of a bag carried on the back when going out or marching, the materials are diversified, cases made of genuine leather, plastic materials, polyester, canvas, nylon, cotton and hemp and other textures lead fashion trends, meanwhile, in the period of putting up the personality on a bulletin board, various styles such as conciseness, vintage, cartoon and the like also meet the requirement of fashion people for raising the personality from different sides, and the style of the case is also expanded from the traditional business bag, schoolbag, traveling bag to pen bag, wallet, sachet and the like.

The containing space of current knapsack is comparatively fixed, and the great knapsack volume in space is great, and the less knapsack volume in space is less, can't convert each other, and the user needs purchase the knapsack of multiple size according to the demand, leads to purchasing cost higher.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the technical problem that above-mentioned prior art exists, provide a knapsack in expanded accommodation space.

The above technical problem of the present invention can be solved by the following technical solutions: a backpack with an expandable storage space comprises a first storage box and a second storage box which are symmetrically arranged, wherein the first storage box and the second storage box are connected through a connecting belt, a single-side zipper a is sewn on the outer edge of the first storage box, a single-side zipper b is sewn on the outer edge of the second storage box, a strap is fixedly connected to one end face, away from the first storage box, of the second storage box, a first zipper head used for controlling the mutual meshing and separation of the single-side zipper a and the single-side zipper b is clamped on the single-side zipper a, folding boxes are fixedly connected to the inner walls of the first storage box and the second storage box through fixing plates, elastic rolling boxes are rotatably connected to two symmetrical side walls of the first storage box and the second storage box, a weaving belt is wound on the elastic rolling boxes in an elastic mode, a plug is fixedly connected to one end of the weaving belt in the elastic rolling boxes on the first storage box, one end of the braided strap in the elastic winding box on the second storage box is fixedly connected with an insertion plate, and the plug is matched with the insertion plate in the direction.

Preferably, a rubber pad is fixedly bonded to an end surface of the second storage box, which is far away from the first storage box, and the rubber pad is located at a middle position.

Preferably, a nonwoven fabric is sewn to the top surface of the folding box, a slide fastener is sewn to the nonwoven fabric, and a second slider for controlling opening and closing of the slide fastener is engaged with the slide fastener.

Preferably, the number of the straps is two, and the two straps are symmetrically arranged.

Preferably, the outer walls of the bottom ends of the first containing box and the second containing box are both fixed with supporting blocks.

Preferably, the folding box is made of plastic.

The utility model discloses beneficial effect who has:

1. when holding article are more, will break away from unilateral zip fastener an and unilateral zip fastener b through first zip fastener head, and open first containing box and the outside rotation of second containing box, then with the folding box upwards pull-up expansion, can effectively increase the storage space, outwards stimulate picture peg and plug again, the braid over braid is played in by the elasticity rolling box, and with picture peg and plug grafting block, make the braid over braid of first containing box and second containing box both sides elasticity rolling box connect, form the handle, the person of being convenient for carries.

2. When not using, can compress tightly the folding box downwards folding to break away from picture peg and plug, the braid over braid is inside elastic rolling box automatic rolling is rolled up to elastic rolling box under the effect of elastic rolling box, reduces the space and occupies, at this moment, can regard as normal knapsack to use.

Drawings

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

fig. 2 is another schematic structural diagram of the present invention;

FIG. 3 is a schematic view of the folding box of the present invention;

fig. 4 is a schematic structural diagram of the non-woven fabric of the present invention.

In the figure: 1. a first storage box; 11. a single-side zipper a; 12. a first slider; 13. a connecting belt; 14. a support block; 2. a second storage box; 21. a single-side zipper b; 22. a harness; 23. a rubber pad; 3. an elastic rolling box; 31. weaving a belt; 32. a plug; 33. inserting plates; 4. folding the box; 41. a fixing plate; 42. non-woven fabrics; 421. a zipper; 422. and a second zipper head.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): a backpack with an expandable storage space is disclosed, as shown in FIG. 1-FIG. 4, comprising a first storage box 1 and a second storage box 2 symmetrically arranged, the first storage box 1 and the second storage box 2 are connected by a connecting belt 13, a single-side zipper a11 is sewed on the outer edge of the first storage box 1, a single-side zipper b21 is sewed on the outer edge of the second storage box 2, a carrying belt 22 is fixedly connected on one side end surface of the second storage box 2 away from the first storage box 1, a first zipper puller 12 for controlling the mutual engagement and separation of the single-side zipper a11 and the single-side zipper b21 is clamped on the single-side zipper a 21, folding boxes 4 are fixedly connected on the inner walls of the first storage box 1 and the second storage box 2 by a fixing plate 41, elastic rolling boxes 3 are rotatably connected on two symmetrical side walls of the first storage box 1 and the second storage box 2, a weaving belt 31 is flexibly wound on the elastic rolling boxes 3, and a plug 32 is fixedly connected on one end of the weaving belt 31 in the elastic rolling boxes 3 on the first storage box 1, an insert plate 33 is fixedly connected to one end of the braided strap 31 in the elastic winding box 3 positioned on the second containing box 2, and the plug 32 is matched with the insert plate 33.

In this case, in normal use, an article can be placed in the cavities of the first storage box 1 and the second storage box 2, the first storage box 1 and the second storage box 2 are closed, the single-side zipper a11 and the single-side zipper b21 are engaged through the first zipper head 12, the backpack can be carried through the strap 22, when a large amount of articles are stored, the single-side zipper a11 and the single-side zipper b21 are separated through the first zipper head 12, the first storage box 1 and the second storage box 2 are rotated outwards and opened, then the folding box 4 is pulled upwards and unfolded, the storage space can be effectively increased, the inserting plate 33 and the plug 32 are pulled outwards, the braided belt 31 is released from the elastic rolling box 3, and the inserting plate 33 and the plug 32 are inserted and clamped, so that the braided belts 31 on the elastic rolling boxes 3 at two sides of the first storage box 1 and the second storage box 2 are connected to form a handle for the user to lift, the reason why the webbing 31 of the elastic take-up box 3 can be wound up is that the elastic take-up box 3 contains a spring, and when the webbing 31 is pulled out, the spring is actually lengthened, and once use is completed, the spring in the elastic take-up box 3 automatically contracts, so that the webbing 31 is wound up.

Specifically, a rubber pad 23 is fixedly bonded to the end face of one side, away from the first storage box 1, of the second storage box 2, and the rubber pad 23 is located at the middle position, so that when a person bears on the back, the rubber pad 23 can play a role in buffering, and discomfort caused by the person bearing on the back is relieved.

Specifically, non-woven fabrics 42 has been sewed up to folding box 4's top surface, has sewed up zip fastener 421 on the non-woven fabrics 42, and the block has the second zipper head 422 that is used for controlling the switching of zip fastener 421 on the zip fastener 421, and non-woven fabrics 42 can play the effect of covering to folding box 4, and simultaneously, accessible second zipper head 422 control zip fastener 421 opens and closes, realizes covering and opening of non-woven fabrics 42, convenient to use.

Specifically, the number of the straps 22 is two, and the two straps 22 are symmetrically arranged, so that the gravity can be dispersed, and the person can conveniently carry the backpack.

Specifically, the outer walls of the bottom ends of the first containing box 1 and the second containing box 2 are respectively fixed with a supporting block 14, and the supporting blocks 14 can play a role in protection, so that the bottom ends of the first containing box 1 and the second containing box 2 are prevented from being worn due to long-term contact with the ground.

Specifically, the folding box 4 is made of plastic, so that the folding box is light in weight, and meanwhile, the folding box 4 can be guaranteed to have certain strength and is convenient to use.

The utility model discloses a practical principle: when in normal use, articles can be placed in the containing cavities of the first containing box 1 and the second containing box 2, the first containing box 1 and the second containing box 2 are closed, the single-side zipper a11 and the single-side zipper b21 are meshed through the first zipper puller 12, the carrying can be carried through the braces 22, when a large number of articles are contained, the single-side zipper a11 and the single-side zipper b21 are separated through the first zipper puller 12, the first containing box 1 and the second containing box 2 are rotated outwards and opened, then the folding box 4 is pulled upwards and unfolded, the containing space can be effectively enlarged, the inserting plate 33 and the plug 32 are pulled outwards, the braided belt 31 is discharged from the elastic coiling box 3, the inserting plate 33 and the plug 32 are inserted and clamped, so that the braided belts 31 on the elastic coiling boxes 3 on the two sides of the first containing box 1 and the second containing box 2 are connected to form a handle, which is convenient for a user to lift and lift, when not in use, can compress tightly folding 4 downwards of folding box, and break away from picture peg 33 and plug 32, the braid over braid 31 is inside elasticity is rolled up to elasticity is rolled up box 3 under elasticity is rolled up box 3 effect, reduce the space and occupy, at this moment, can regard as normal knapsack use, the braid over braid 31 on the elasticity is rolled up because the spring is equipped with to elasticity is rolled up box 3 the inside on the box 3, when pulling out the braid over braid 31, actually be the length of lengthening the spring, in case the braid over braid 31 does not receive the pulling force, the spring of elasticity is rolled up the box 3 the inside can contract automatically, so the braid over braid 31 will be rolled up.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.

Claims (6)

1. The utility model provides an expanded storage space's knapsack, includes first containing box (1) and the second containing box (2) that the symmetry set up, first containing box (1) with second containing box (2) are connected through connecting band (13), unilateral zip fastener a (11) have been sewed up along the outer of first containing box (1), unilateral zip fastener b (21) have been sewed up along the outer of second containing box (2), second containing box (2) are kept away from a side end face fixedly connected with braces (22) of first containing box (1), unilateral zip fastener a (11) with block has first zip fastener (12) that are used for controlling its intermeshing and separation on unilateral zip fastener b (21), its characterized in that: first containing box (1) with the inner wall of second containing box (2) all is through fixed plate (41) fixedly connected with folding box (4), first containing box (1) with two symmetrical lateral walls of second containing box (2) all rotate and are connected with elasticity receipts box (3), elasticity is gone up around being equipped with braid over braid (31) in elasticity receipts box (3), is located on first containing box (1) in elasticity receipts box (3) the one end fixedly connected with plug (32) of braid over braid (31), be located on second containing box (2) in elasticity receipts box (3) the one end fixedly connected with picture peg (33) of braid over braid (31), plug (32) with picture peg (33) are to the cooperation.

2. The expandable stowage space backpack of claim 1, wherein: a rubber pad (23) is fixedly bonded to the end face of one side, away from the first storage box (1), of the second storage box (2), and the rubber pad (23) is located in the middle.

3. The expandable stowage space backpack of claim 1, wherein: the top surface of the folding box (4) is sewed with a non-woven fabric (42), the non-woven fabric (42) is sewed with a zipper (421), and the zipper (421) is clamped with a second zipper head (422) for controlling the opening and closing of the zipper (421).

4. The expandable stowage space backpack of claim 1, wherein: the number of the straps (22) is two, and the two straps (22) are symmetrically arranged.

5. The expandable stowage space backpack of claim 1, wherein: supporting blocks (14) are fixed on the outer walls of the bottom ends of the first containing box (1) and the second containing box (2).

6. The expandable stowage space backpack of claim 1, wherein: the folding box (4) is made of plastic.

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