High-strength schoolbag structure
By sewing cross-reinforcing straps into the bottom wall and adding reinforced straps to the top wall, the problem of insufficient load-bearing capacity of the backpack is solved, resulting in stronger load-bearing capacity and extended service life.
Patent Information
- Application Number
- CN202520052725.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Existing backpacks have insufficient load-bearing capacity, which makes the bottom wall easily separate from the side wall and the zipper easily stretch open, resulting in a short service life.
The bottom wall of the backpack is sewn with cross-shaped reinforcing straps, and the ends of the straps are sewn to the side walls. The top wall has a reinforcing strap structure on the left and right sides, including straps and loops. The straps cross and pass through the loops and are tied together. The weight and tension are shared by the reinforcing straps and straps.
It increases the load-bearing capacity of the backpack, prevents the bottom and side walls from separating and the zipper from being stretched open, and extends the lifespan of the backpack.
Smart Images

Figure CN223568885U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a schoolbag technical field, specifically point to a kind of high-strength schoolbag structure. BACKGROUND
[0002] Schoolbag usually refers to the schoolbag or schoolbag used by students to carry books, stationery and other learning supplies. They are usually made of durable materials, with multiple pockets and compartments to facilitate the organization and carrying of books, notebooks, stationery and other items. Schoolbag usually includes a bottom wall, a top wall, left and right side walls, and front and rear side walls. The top wall includes a front top wall and a rear top wall. The front top wall is sewn together with the left and right side walls and the front side wall. The rear top wall is sewn together with the left and right side walls and the rear side wall. The front top wall is connected to the rear top wall by a zipper.
[0003] Today, students have more and more books, and the backpack's carrying capacity is insufficient. The bottom wall is easily separated from the left and right front and rear side walls, and the zipper between the front and rear top walls is also easily opened, making it impossible to use. The service life of the schoolbag is relatively short. INVENTION CONTENTS
[0004] I. Technical problem to be solved
[0005] The technical problem to be solved by the utility model is to overcome the technical problem of insufficient carrying capacity of schoolbags, which causes the bottom wall to easily separate from the side wall and the zipper to easily open. A high-strength schoolbag structure with a longer service life is provided.
[0006] II. Technical solution
[0007] To solve the above technical problems, the utility model provides a technical solution: a high-strength schoolbag structure, including a bottom wall, a side wall, and a top wall. The side wall includes a front side wall, a rear side wall, a left side wall, and a right side wall, and is sewn together around the bottom wall. The top wall includes a front top wall and a rear top wall. The front top wall is sewn together with the left side wall, the front side wall, and the right side wall in order. The rear top wall is sewn together with the left side wall, the rear side wall, and the right side wall in order. The side of the front top wall and the rear top wall that is closest to each other is connected by a zipper. Two reinforcing bands are sewn onto the bottom wall, intersecting each other. The ends of the two reinforcing bands are sewn together with the side wall.
[0008] Further, the reinforcing bands are arranged on the inside of the schoolbag, making it more aesthetically pleasing.
[0009] Further, the two reinforcing bands are arranged in a cross shape. One end of one reinforcing band is sewn to the front side wall and the rear side wall, and the other end of the other reinforcing band is sewn to the left side wall and the right side wall.
[0010] Further, the two reinforcing bands are arranged in a scissors type, and ends of the two reinforcing bands are sewn with corresponding left side walls and right side walls.
[0011] Further, the end of the binding band is provided with a tightening member, which is same as the rotating button structure for tightening in the prior art children shoes, and is used for tightening the binding band.
[0012] Further, the front top wall and the rear top wall are both provided with a band passing ring fixing band on the outside, which is used for fixing the band passing ring.
[0013] Further, the band passing ring is a metal ring, and a rust-proof coating is coated on the surface.
[0014] Three, beneficial effects
[0015] Compared with the prior art, the book bag has the advantages that:
[0016] 1. The book bag is sewn with the reinforcing bands arranged in a cross type on the bottom wall, and the ends of the reinforcing bands are sewn with the side walls, so that the reinforcing bands can bear part of the gravity of books, and the stress on the bottom wall is reduced, so that the separation of the bottom wall and the side wall can be avoided.
[0017] 2. The binding band between the front top wall and the rear top wall of the book bag can share part of the pulling force after being tightened, so that the zipper can be prevented from being opened.
[0018] 3. The book bag has improved bearing capacity and prolonged service life through the above two structures. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a structure schematic view of a high-strength book bag structure.
[0020] Figure 2 is a distribution structure schematic view of the reinforcing bands in the second embodiment.
[0021] Figure 3 is a distribution structure schematic view of the reinforcing bands in the third embodiment.
[0022] Figure 4 is an unfolded structure schematic view of the left and right side walls and the top wall of the high-strength book bag structure.
[0023] As shown in the figure: 1, bottom wall; 2, front side wall; 3, rear side wall; 4, left side wall; 5, right side wall; 6, front top wall; 7, rear top wall; 8, binding band; 9, band passing ring; 10, band passing ring fixing band; 11, reinforcing band; 12, tightening member. DETAILED DESCRIPTION
[0024] In order to make the technical problems, technical schemes and beneficial effects to be solved by the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and embodiments.
[0025] In the description of the utility model, it needs to be understood that the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.
[0026] In the description of the utility model, it needs to be understood that the term "connection" should be understood broadly, for example, it can be fixed connection, detachable connection or integral connection, and the specific meaning of the term in the utility model can be understood according to the specific circumstances by the ordinary skilled person in the art.
[0027] Embodiment one: in combination with the drawings Figure 1 .
[0028] A high-strength schoolbag structure, comprising a bottom wall 1, a side wall, a top wall and a shoulder strap, the side wall comprises a front side wall 2, a rear side wall 3, a left side wall 4 and a right side wall 5 and is sewn together around the bottom wall 1, the top wall comprises a front top wall 6 and a rear top wall 7, three side edges of the front top wall 6 are sequentially sewn together with the left side wall 4, the front side wall 2 and the right side wall 5, three side edges of the rear side wall 3 are sequentially sewn together with the left side wall 4, the rear side wall 3 and the right side wall 5, and the side of the front top wall 6 and the rear top wall 7 close to each other is connected by a zipper, two zipper heads are arranged on the zipper, the two zipper heads are oppositely arranged, and pulling towards the middle makes the zipper close, and pulling towards the two sides makes the zipper open, two reinforcing bands 11 are sewn on the bottom wall 1 and are cross-arranged, the ends of the two reinforcing bands 11 are respectively sewn together with the side wall, reinforcing band structure is arranged on the left and right sides of the top wall, the reinforcing band structure comprises a band 8 and a belt passing ring 9, a plurality of pairs of belt passing rings 9 are arranged on the front top wall 6 and the rear side wall 3 and are symmetrically arranged, and the band 8 is bound together after crossing through the corresponding belt passing ring 9.
[0029] The reinforcing belt 11 is arranged on the inner side of the schoolbag, and the aesthetic property is better.
[0030] The front top wall 6 and the rear top wall 7 are provided with a fixing belt 10 outside, and the fixing belt 10 is used for fixing the belt penetrating ring 9.
[0031] The reinforcing belt 11 can improve the bearing capacity of the bottom wall 1, and reduce the possibility of separation of the bottom wall 1 and the side wall. The reinforcing belt 11 is arranged in a cross shape, and forms a triangular structure. The triangular structure has better stability and reinforcing effect. The belt 8 is passed through the belt penetrating ring 9 and is tightened, so that part of the pulling force is shared, thereby avoiding the zipper from being opened, prolonging the service life of the zipper, and the belt penetrating ring 9 is a metal ring and is coated with an anti-rust coating. The metal ring has high tensile strength and long service life, and the anti-rust coating can prevent the belt penetrating ring 9 from rusting and prolong the service life of the belt penetrating ring 9. The front side wall 2 is also provided with a small bag for storing small items.
[0032] Example two: combined with the drawings Figure 1 , 2 .
[0033] On the basis of example one, two reinforcing belts 11 are arranged in a cross shape. One end of one reinforcing belt 11 is sewn to the front side wall 2 and the rear side wall 3, and the other end of the other reinforcing belt 11 is sewn to the left side wall 4 and the right side wall 5.
[0034] In this way, the reinforcing belt 11, the bottom wall 1 and the four side walls are connected together, so that the bottom wall 1 and the four side walls are more firmly connected.
[0035] Example three: combined with the drawings Figure 1 , 3 .
[0036] On the basis of example one, two reinforcing belts 11 are arranged in a cross shape. One end of one reinforcing belt 11 is sewn to the front side wall 2 and the rear side wall 3, and the other end of the other reinforcing belt 11 is sewn to the left side wall 4 and the right side wall 5.
[0037] In this way, the reinforcing belt 11, the bottom wall 1 and the four side walls are connected together, so that the bottom wall 1 and the four side walls are more firmly connected.
[0038] Example four: 1, 4.
[0039] On the basis of example two or three, the end of the belt 8 is provided with a tightening member 12. The tightening member 12 is the same as the rotating button structure of the shoelace of the children's shoes in the prior art (the rotating button is the prior art, and therefore will not be described here), and is used for tightening the belt 8.
[0040] The utility model discloses in the specific implementation, the reinforced tape 11 can share a part of bearing force, thereby alleviating the bearing of bottom wall, makes the bearing force of schoolbag stronger, and the binding band 8 can share the pulling force that zip fastener bears with the wearing ring 9, the cooperation of tightening member 12, thereby avoids zip fastener to be opened, prolongs its service life.
[0041] The above describes the utility model and its implementation mode, and this kind of description has no limit, and the embodiment shown in the drawing is only one of the utility model, and the actual structure is not limited to this. In general, if the ordinary skilled person in the art is inspired, without departing from the utility model creation tenet, the similar structure mode and embodiment of the technical scheme are not created creatively, and all should belong to the protection scope of the utility model.
Claims
1. A high-strength schoolbag structure, comprising a bottom wall (1), side walls, and a top wall, the side walls comprising a front side wall (2), a rear side wall (3), a left side wall (4), and a right side wall (5), and being sewn together around the bottom wall (1), the top wall comprising a front top wall (6) and a rear top wall (7), the front top wall (6) being sewn together with the left side wall (4), the front side wall (2), and the right side wall (5) in sequence in three sides, the rear side wall (3) being sewn together with the left side wall (4), the rear side wall (3), and the right side wall (5) in sequence in three sides, and the side of the front top wall (6) and the side of the rear top wall (7) close to each other being connected by a zipper, characterized in that: two reinforcing bands (11) are sewn on the bottom wall (1) in a cross arrangement, the ends of the two reinforcing bands (11) being sewn together with the side walls, respectively; a reinforcing band structure is arranged on the left and right sides of the top wall, and comprises a band (8) and a passing band ring (9), the passing band ring (9) is provided with multiple pairs and is symmetrically arranged on the front top wall (6) and the rear side wall (3), and the band (8) is bound together after crossing the corresponding passing band ring (9). The reinforcing bands (11) are arranged on the inner side of the schoolbag. The two reinforcing bands (11) are arranged in a cross arrangement, one end of one reinforcing band (11) is sewn together with the front side wall (2) and the rear side wall (3), and the other end of the other reinforcing band (11) is sewn together with the left side wall (4) and the right side wall (5).
2. A high-strength backpack structure according to claim 1, characterized in that: The two reinforcing bands (11) are arranged in a scissors type, and the ends of the two reinforcing bands (11) are sewn together with the corresponding left side wall (4) and right side wall (5).
3. A high-strength backpack structure according to claim 2, characterized in that: The end of the band (8) is provided with a tightening member (12), which is the same as the rotating button structure for tightening the shoelace on the children's shoes in the prior art, and is used for tightening the band (8).
4. The high-strength backpack structure of claim 2, wherein: The outer side of the front top wall (6) and the rear top wall (7) is provided with a passing band ring fixing band (10) for fixing the passing band ring (9).
5. A high strength backpack structure according to claim 3 or 4, wherein: The passing band ring (9) is a metal ring, and the surface is coated with an anti-rust coating.
6. The high-strength backpack structure of claim 1, wherein: 7. A high-strength backpack structure according to claim 6, characterized in that: