Load-reducing backpack

Abstract

The utility model relates to the technical field of knapsacks, in particular to a load-reducing knapsack which comprises a knapsack body, a U-shaped strap is arranged on the back face of an interlayer, the two ends, extending out of the interlayer, of the U-shaped strap are integrally connected with waistcoat shoulder straps, a partial pressure back panel is sewn on the front face of the interlayer, and a waist protection pad is placed on the inner side of a bag clamping layer. According to the load-reducing backpack, the U-shaped straps capable of being elastically stretched are designed to be integrally connected with the waistcoat shoulder straps, the backpack body can achieve a dynamic balance effect by stretching the U-shaped straps, so that the pressure on the shoulders is greatly reduced, and the effect of conforming to an ergonomic structure can be achieved by designing the partial pressure back panel filled with the memory sponge and the waist protection pad; meanwhile, the buffer blocks of the memory sponge structure can effectively relieve pressure on the waist and back, a wearable structure with large-area pressure division is formed by designing the waistcoat shoulder straps, and based on the action relation between the stress area and the pressure, the binding pressure of a traditional strap on the chest can be relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of backpacks, in particular to a load-reducing backpack. Background Art

[0002] A backpack is a bag-like structure made of cloth, leather, etc. that has a certain storage function. It is especially used by students in kindergartens, primary schools and middle schools to carry textbooks, stationery and other personal items. Students usually carry it on their shoulders when walking, making it convenient to carry daily classroom supplies.

[0003] Backpacks (school bags) currently on the market have a certain weight after placing items in them. Since students are in the growth stage, a backpack that carries too much weight can easily have a negative impact on the development of their shoulders and waist. In order to reduce the impact of the backpack on students' shoulders and waist, some existing weight-reducing backpacks generally install a belt at the lower end of the backpack, which is fastened around the waist when the backpack is put on. However, the use of the belt can only reduce the load on students' shoulders to a limited extent and may increase waist discomfort.

[0004] Some backpacks adopt a split design to achieve the effect of pressure relief or shock absorption, but the structure of such backpacks is mostly complex and the service life is not long. In addition, due to the high production cost, some split backpacks are expensive, which is not conducive to promotion and sales in the market.

[0005] At the same time, after searching the prior art, a utility model patent with Chinese patent publication number CN216059555U discloses a load-reducing backpack. The load-reducing backpack in the utility model patent adopts a back plate, a gear module, a mounting plate, a force rack, a power rack, and an elastic component. The elastic buffering performance of the spring is used to keep the backpack relatively stationary with the ground when the human body is carrying it and walking, thereby reducing the up and down movement of the backpack caused by inertia, thereby reducing fatigue when carrying the backpack.

[0006] However, since the load-reducing backpack uses a series of plate materials and mechanical parts as a buffer structure, when a person walks, the backpack and the books and stationery inside will undoubtedly increase the extra weight when carrying the backpack. In addition, the back plate structure of the load-reducing backpack is made of hard material. Compared with arbitrarily deformable fabrics, it cannot achieve an ergonomic structure that conforms to the human waist and back. Carrying it for a long time will further increase the discomfort of the waist and back. Therefore, the load-reducing backpack needs to be further improved in its decompression and burden-reducing effect on the waist and back.

[0007] Therefore, based on the technical problems existing in some load-reducing backpacks on the market and the load-reducing backpacks in the existing patented technologies, a load-reducing backpack is proposed. Utility Model Content

[0008] In response to the shortcomings of the existing technology, the utility model provides a load-reducing backpack with the advantages of pressure-reducing and shock-absorbing functions and ergonomic design, which solves the problem in the above-mentioned background technology that the existing load-reducing backpack structure cannot effectively reduce pressure and shock on students' shoulders and waists.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solutions: a load-reducing backpack, comprising a backpack body, wherein a load-reducing structure is provided on the front side of the backpack body;

[0010] The load-reducing structure includes a partition sewn on the front of the backpack body, a U-shaped shoulder strap is provided on the back of the partition, and the U-shaped shoulder strap is integrally connected to the two ends of the U-shaped shoulder strap extending out of the partition. The outside of the two vest shoulder straps is provided with magnetic chest buckles, a pressure-dividing back panel is sewn on the front of the partition, and a pocket layer is sewn on the bottom front of the backpack body, and a waist pad is placed on the inside of the pocket layer.

[0011] Furthermore, a bag-shaped gap is left between the partition and the backpack body, the U-shaped strap is located on the inner side of the bag-shaped gap, and two elastic bands are sewn to the bottom of the U-shaped strap, and the two elastic bands are sewn to the front of the backpack body at the end away from the U-shaped strap.

[0012] Furthermore, first connecting straps are sewn on both sides of the backpack body, and buckles are sewn on the ends of the two vest shoulder straps away from the U-shaped straps, and the two first connecting straps are respectively connected to the two buckles.

[0013] Furthermore, the magnetic chest buckle includes a magnetic mother buckle and a magnetic son buckle, and the magnetic mother buckle and the magnetic son buckle are respectively located on opposite sides of the two vest shoulder straps. Seven buffer blocks are provided on the front of the pressure-dividing back panel, and the inner side of each buffer block is filled with a memory foam structure.

[0014] Furthermore, second connecting straps with elastic structures are sewn on both sides of the waist support pad, one end of one of the second connecting straps is fixedly connected to an insert, and one end of the other second connecting strap is fixed to a buckle clip adapted to the insert.

[0015] Furthermore, a zipper structure is provided on the outer side of the backpack body, and a cross-structured book strap is sewn on the inner front wall of the backpack body, and the book strap is an elastic structure.

[0016] Beneficial effects

[0017] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0018] 1. This load-reducing backpack is designed with an elastically stretchable U-shaped strap that is integrated with the vest shoulder strap. When walking, the backpack body is heavily loaded and sways slightly up and down. The backpack body will form a dynamic balance effect by stretching the U-shaped strap and the vest shoulder strap, thereby greatly reducing the pressure on the shoulders.

[0019] 2. This load-reducing backpack is designed with a pressure-dividing back panel and a waist pad filled with memory foam. The waist pad is worn using inserts and clips, so that the backpack body and the pressure-dividing back panel fit the human back, which can achieve an ergonomic structure. At the same time, the buffer block of the memory foam structure can provide pressure relief and shock absorption effects for the back of the human body, thereby effectively reducing the pressure on the waist and back.

[0020] 3. This load-reducing backpack is designed with a vest shoulder strap to form a wearable structure with a large area of pressure distribution. Based on the relationship between the force-bearing area and pressure, it can reduce the pressure of traditional straps on the chest. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional schematic diagram of the structure of the utility model's load-reducing backpack;

[0022] Figure 2 for Figure 1 Partial diagram of the viewing angle

[0023] Figure 3 for Figure 1 Front view of the backpack's main structure in perspective;

[0024] Figure 4 for Figure 3 Schematic diagram of the pressure-dividing back frame structure in the viewing angle;

[0025] Figure 5 This is a schematic diagram of the U-shaped strap structure of the utility model;

[0026] Figure 6 for Figure 4 Schematic diagram of the split structure of the bag layer and waist pad from the perspective;

[0027] Figure 7 This is a schematic diagram of the structure of the book strap of the present utility model.

[0028] In the figure: 1. Backpack body; 2. Load-reducing structure; 201. Interlayer; 202. U-shaped shoulder strap; 203. Vest shoulder strap; 204. Magnetic chest buckle; 205. Pressure-dividing back panel; 206. Pocket layer; 207. Waist pad; 3. First connecting strap; 4. Belt buckle; 5. Second connecting strap; 6. Insert; 7. Buckle clip; 8. Book strap; 9. Elastic strap. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-7 , a load-reducing backpack includes a backpack body 1, a load-reducing structure 2 is provided on the front side of the backpack body 1, a first connecting belt 3 is sewn on the left and right sides of the backpack body 1, and two vest shoulder straps 203 are sewn with a belt buckle 4 at one end away from the U-shaped shoulder strap 202. The first connecting belt 3 is passed around and tied to the belt buckle 4, which makes it convenient for the vest shoulder strap 203 to be carried on the chest, and a second connecting belt 5 with an elastic structure is sewn on the left and right sides of the waist pad 207, one end of one of the second connecting belts 5 is fixedly connected to an insert 6, and one end of the other second connecting belt 5 is fixed with a buckle 7 adapted to the insert 6, and the two second connecting belts 5 are plugged and fixed by the insert 6 and the buckle 7, and a cross-structured book strap 8 is sewn on the inner front wall of the backpack body 1, which is convenient for fixing books and stationery put into the backpack using the book strap 8.

[0031] The load-reducing structure 2 includes a partition 201 sewn on the front of the backpack body 1, and a U-shaped shoulder strap 202 is provided on the back of the partition 201. The U-shaped shoulder strap 202 can be elastically stretched by the elastic band 9. The U-shaped shoulder strap 202 is integrally connected with a vest shoulder strap 203 at both ends extending out of the partition 201. The vest shoulder strap 203 forms a large-area pressure-dividing effect. The outside of the two vest shoulder straps 203 is provided with a magnetic chest buckle 204, and the magnetic chest buckle 204 can buckle and restrain the two vest shoulder straps 203. A pressure-dividing back panel 205 is sewn on the front of the partition 201, and a pocket layer 206 is sewn on the bottom of the front of the backpack body 1. A waist pad 207 is placed on the inside of the pocket layer 206. The waist pad 207 is convenient for removal and cleaning.

[0032] according to Figure 1 and Figure 3 As shown, the back of the partition 201 and the front of the backpack body 1 form a bag-like structure, and the U-shaped strap 202 is sewn on the partition 201. When the backpack body 1 walks with the human body carrying the weight, the backpack will bump up and down to a certain extent. At this time, the backpack body 1 and the vest shoulder strap 203 will simultaneously stretch the U-shaped strap 202, so that the bumping frequency of the backpack body 1 is in a dynamic balance effect, which can reduce the pressure on the shoulders.

[0033] according to Figure 3As shown, both vest shoulder straps 203 are convenient for carrying and wearing through the first connecting belt 3 and the buckle 4. The vest shoulder straps 203 are designed as a large-area pressure-sharing structure. Based on the relationship between the force-bearing area and the pressure, when the load is certain, the larger the force-bearing area, the smaller the pressure. Therefore, it can reduce the pressure restraint of the traditional backpack on the chest and arms.

[0034] according to Figure 4 and Figure 6 As shown, after the waist pad 207 is placed in the pocket layer 206, it is fixed around the wearer's waist and abdomen through the insert 6 and buckle 7 on the second connecting belt 5, so that the pressure-dividing back panel 205 on the front of the backpack body 1 always adapts to the curve of the human back, and then the seven buffer blocks of the memory foam structure of the pressure-dividing back panel 205 can reduce the pressure and burden on the back.

[0035] In summary, the load-reducing backpack is designed to be integrally connected with the vest shoulder strap 203 by designing an elastically stretchable U-shaped shoulder strap 202. When walking, the backpack body 1 is loaded with a heavy load and sways slightly up and down. The backpack body 1 will form a dynamic balance effect by stretching the U-shaped shoulder strap 202 and the vest shoulder strap 203, thereby greatly reducing the pressure on the shoulders. By designing a pressure-dividing back panel 205 filled with memory foam and a waist pad 207, the waist pad 207 is worn using the insert 6 and the buckle 7, and the backpack body 1 and the pressure-dividing back panel 205 are adapted to fit the human back, which can achieve an ergonomic structure. At the same time, the buffer block of the memory foam structure can provide a decompression and shock-absorbing effect for the human back, thereby effectively reducing the pressure on the waist and back. By designing the vest shoulder strap 203 to form a wearable structure with a large area of pressure division, based on the relationship between the force-bearing area and the pressure, the restraining pressure of the traditional strap on the chest can be reduced, which solves the problem in the above-mentioned background technology that the existing load-reducing backpack structure cannot effectively reduce pressure and shock on students' shoulders and waist.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A weight-reducing backpack, comprising a backpack body (1), characterized in that: The front side of the backpack body (1) is provided with a load-reducing structure (2); The load-reducing structure (2) comprises a partition (201) sewn on the front of the backpack body (1); a U-shaped shoulder strap (202) is provided on the back of the partition (201); the U-shaped shoulder strap (202) is integrally connected to a vest shoulder strap (203) at both ends extending out of the partition (201); magnetic chest buckles (204) are provided on the outside of the two vest shoulder straps (203); a pressure-dividing back panel (205) is sewn on the front of the partition (201); a pocket layer (206) is sewn on the bottom of the front of the backpack body (1); and a waist pad (207) is placed on the inner side of the pocket layer (206).

2. A weight-reducing backpack according to claim 1, characterized in that: A bag-shaped gap is left between the partition (201) and the backpack body (1), the U-shaped shoulder strap (202) is located inside the bag-shaped gap, and two elastic bands (9) are sewn to the bottom of the U-shaped shoulder strap (202), and the two elastic bands (9) are sewn to the front of the backpack body (1) at one end away from the U-shaped shoulder strap (202).

3. The load-reducing backpack according to claim 1, characterized in that: The left and right sides of the backpack body (1) are both sewn with first connecting belts (3), and the two vest shoulder straps (203) are sewn with belt buckles (4) at one end away from the U-shaped shoulder strap (202), and the two first connecting belts (3) are respectively connected to the two belt buckles (4).

4. The load-reducing backpack according to claim 1, characterized in that: The magnetic chest buckle (204) comprises a magnetic mother buckle and a magnetic son buckle, and the magnetic mother buckle and the magnetic son buckle are respectively located on opposite sides of the two vest shoulder straps (203). The front of the pressure-dividing back panel (205) is provided with seven buffer blocks, and the inner side of each buffer block is filled with a memory foam structure.

5. The load-reducing backpack according to claim 1, characterized in that: Second connecting belts (5) with an elastic structure are sewn on both the left and right sides of the waist support pad (207), one end of one of the second connecting belts (5) is fixedly connected to an insert (6), and one end of the other second connecting belt (5) is fixed to a clip (7) adapted to the insert (6).

6. The load-reducing backpack according to claim 1, characterized in that: The outer side of the backpack body (1) is provided with a zipper structure, and the inner front wall of the backpack body (1) is sewn with a cross-structured book strap (8), and the book strap (8) is an elastic structure.

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