Novel backpack
By designing to distribute the weight around the waist and utilizing structures such as safety ropes and buckles, the problem of body imbalance caused by concentrated weight in backpacks is solved, achieving even weight distribution and body stability, thus improving comfort and health.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-17
AI Technical Summary
Backpacks concentrate the weight on the shoulders, leading to body imbalance and excessive hunching, which can cause health problems with long-term use.
Design a new type of backpack that distributes weight evenly around the waist by using a structure with safety ropes, buckles, springs, and toothed buckles, thereby reducing shoulder pressure and maintaining body stability.
It effectively reduces shoulder pressure, maintains body balance, reduces center of gravity shift caused by backpack swaying, and improves user comfort and health.
Smart Images
Figure CN223994524U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ergonomics and design technology, and in particular to a novel backpack. Background Technology
[0002] Backpacks are suitable for office workers to carry laptops, documents, wallets and other daily necessities. They are convenient, quick, and free up their hands, making them easy to use on public transportation or while walking. Students can use backpacks to carry textbooks, stationery, water bottles and other study and living supplies. They have a large capacity and can meet daily study needs. However, backpacks, as an external load, act on the human body and change the body's center of gravity. In order to counteract this external load and maintain body balance, the person carrying the load will habitually lean forward, which can easily lead to problems such as excessive hunchback over time. Therefore, to solve this problem, we have proposed a new type of backpack. Utility Model Content
[0003] The purpose of this utility model is to provide a new type of backpack that can effectively reduce the pressure on the shoulders by distributing part of the weight to the waist, thus better maintaining the body's balance and stability and reducing the center of gravity shift caused by backpack swaying. By turning the nut to release the four-pronged clasp from the toothed buckle, the elastic strap can be lengthened, which can better distribute the weight of the backpack evenly on the shoulders and reduce local pressure on the shoulders.
[0004] To achieve the above objectives, a novel backpack is provided, comprising a bag body with two recesses inside. A first rotating rod is movably fitted inside the left recess of the bag body, with coil springs fixedly installed at both ends of the first rotating rod. A first safety rope is fixedly installed on one side of the first rotating rod. A second rotating rod is movably fitted inside the right recess of the bag body, with a second safety rope fixedly installed on one side of the second rotating rod. A buckle is fixedly installed at one end of the first safety rope, and a snap fastener is fixedly installed at one end of the second safety rope. A circular hole is formed inside the buckle, and a spring is fixedly installed inside the circular hole. A limit shaft is movably fitted inside the circular hole of the buckle. A shoulder strap is fixedly connected to the outside of the bag body. The shoulder strap has a sleeve fixedly connected to its exterior, and the shoulder strap communicates with the sleeve. A toothed buckle is movably fitted inside the sleeve, and a winding shaft is movably fitted inside the toothed buckle. A four-pronged retaining ring is fixedly connected inside the sleeve, and a nut is threaded inside the sleeve. A fixing plate is fixedly installed on the exterior of the winding shaft, and a fixing shaft is fixedly installed above the fixing plate. An elastic plate is fixedly connected to the exterior of the fixing shaft above the fixing plate, and a rotating shaft is fixedly installed above the fixing plate. A limit plate is movably fitted on the exterior of the rotating shaft above the fixing plate, and the limit plate is fixedly connected to the elastic plate. A telescopic strap is fixedly installed at the bottom of the bag body, and one end of the winding shaft extends into the interior of the shoulder strap and is fixedly connected to the telescopic strap.
[0005] According to the novel backpack, one end of the spring is fixedly connected to the limiting shaft, and the buckle hole can limit the limiting shaft.
[0006] According to the novel backpack, coil springs are fixedly installed at both the upper and lower ends of the second rotating rod.
[0007] According to the novel backpack, the inside of the four-pronged clasp can contact the outer surface of the toothed buckle.
[0008] According to the novel backpack, the inside of the nut can contact the outer surface of the four-pronged clasp.
[0009] According to the novel backpack, the buckle can be inserted into the inside of the buckle, and the limiting shaft can limit its movement.
[0010] According to the novel backpack, the limiting plate can engage with the internal teeth of the toothed buckle.
[0011] According to the novel backpack, the inside of the bag body has two through slots, through which the first safety rope and the second safety rope can extend to the outside. Beneficial effects
[0012] 1. By stretching the first and second safety ropes and wrapping them around the waist, and then inserting the buckles into the buckles, the elastic return effect of the springs is used to limit the buckles with the limiting shaft. At the same time, the coil springs provide a certain tightening effect. When some of the weight is distributed to the waist, the pressure on the shoulders can be effectively reduced, and the body's balance and stability can be better maintained, reducing the center of gravity shift caused by the backpack swaying.
[0013] 2. Tighten the retractable belt by rotating the rewinding shaft. After tightening, the limiting plate engages with the teeth inside the toothed buckle to limit the rewinding shaft. This allows for quick tightening of the retractable belt. Rotating the nut to release the four-pronged clasp from limiting the toothed buckle will lengthen the retractable belt. This also allows for better even distribution of the backpack's weight on both shoulders, reducing localized pressure on the shoulders.
[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0016] Figure 1A perspective view of a novel backpack proposed in this utility model;
[0017] Figure 2 A schematic diagram of the first safety rope of a novel backpack proposed in this utility model;
[0018] Figure 3 A schematic diagram of the buckle of a novel backpack proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the sleeve of a novel backpack proposed in this utility model;
[0020] Figure 5 This is a schematic diagram of the roll-up shaft of a novel backpack proposed in this utility model.
[0021] Legend:
[0022] 1. Bag body; 2. First rotating rod; 3. Coil spring; 4. First safety rope; 5. Second rotating rod; 6. Second safety rope; 7. Buckle; 8. Clip; 9. Spring; 10. Limiting shaft; 11. Shoulder strap; 12. Sleeve; 13. Toothed buckle; 14. Rewinding shaft; 15. Four-claw clasp; 16. Nut; 17. Fixing plate; 18. Limiting plate; 19. Telescopic belt; 20. Elastic plate. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] Reference Figure 1-5This utility model discloses a novel backpack, comprising a bag body 1. The bag body 1 facilitates the use of a first safety rope 4 and a second safety rope 6. The bag body 1 has two grooves inside. A first rotating rod 2 is movably fitted inside the left groove of the bag body 1. The first rotating rod 2, in conjunction with a coil spring 3, can wind up the first safety rope 4. Coil springs 3 are fixedly installed at both ends of the first rotating rod 2, which can drive the first rotating rod 2 and the second rotating rod 5 to rotate. The first safety rope 4 is fixedly installed on one side of the first rotating rod 2, which can distribute the weight to the waist. A second rotating rod 5 is movably fitted inside the right groove of the bag body 1. The second rotating rod 5, in conjunction with the coil spring 3, can... The second safety rope 6 is fixedly installed on one side of the second rotating rod 5. The second safety rope 6 can distribute the weight to the waist. A buckle 7 is fixedly installed at one end of the first safety rope 4. The buckle 7 can be used to insert a clip 8. A clip 8 is fixedly installed at one end of the second safety rope 6. The first safety rope 4 and the second safety rope 6 can be connected together through the clip 8 and the buckle 7. A round hole is opened inside the buckle 7. A spring 9 is fixedly installed inside the round hole of the buckle 7. The elastic effect of the spring 9 can reset the limiting shaft 10. The limiting shaft 10 is movably fitted inside the round hole of the buckle 7. A shoulder strap 11 is fixedly connected to the outside of the bag body 1. The shoulder strap 11 can be used to carry the bag body 1 on the body. The external fixed connection of the sleeve 12 allows the take-up shaft 14 to operate more conveniently. The shoulder strap 11 passes through the sleeve 12. A toothed buckle 13 is movably fitted inside the sleeve 12, which limits the movement of the take-up shaft 14. The take-up shaft 14 can be used to wind up the telescopic belt 19. A four-jaw retaining ring 15 is fixedly connected inside the sleeve 12, which limits the movement of the toothed buckle 13. A nut 16 is threaded inside the sleeve 12, which presses against the four-jaw retaining ring 15, allowing it to limit the movement of the toothed buckle 13. The external fixed installation of the take-up shaft 14 is a fixed... A fixed shaft is fixedly installed on the top of the fixed plate 17. An elastic plate 20 is fixedly connected to the outside of the fixed shaft on the top of the fixed plate 17. The elastic plate 20 can help the limiting plate 18 to reset. A rotating shaft is fixedly installed on the top of the fixed plate 17. The limiting plate 18 is movably fitted on the outside of the rotating shaft on the top of the fixed plate 17. The limiting plate 18 can limit the winding shaft 14 by engaging with the teeth inside the toothed buckle 13. The limiting plate 18 is fixedly connected to the elastic plate 20. A telescopic belt 19 is fixedly installed on the bottom of the bag body 1. One end of the winding shaft 14 extends into the inside of the shoulder strap 11 and is fixedly connected to the telescopic belt 19. The fixed connection between the winding shaft 14 and the telescopic belt 19 can allow the winding shaft 14 to wind up the telescopic belt 19.
[0025] Specifically: one end of the spring 9 is fixedly connected to the limiting shaft 10, the round hole of the buckle 7 can limit the limiting shaft 10, and the elastic effect of the spring 9 can reset the limiting shaft 10.
[0026] Specifically: both the upper and lower ends of the second rotating rod 5 are fixedly installed with coil springs 3, which can be used to rotate the second rotating rod 5.
[0027] Specifically: the inside of the four-pronged retaining ring 15 can contact the outer surface of the toothed retaining ring 13, and when the four-pronged retaining ring 15 contacts the outer surface of the toothed retaining ring 13, the four-pronged retaining ring 15 can limit its movement.
[0028] Specifically: the inside of the nut 16 can contact the outer surface of the four-jaw retainer 15, and the four-jaw retainer 15 can be squeezed by the nut 16.
[0029] Specifically: the buckle 8 can be inserted into the buckle 7 and the limiting shaft 10 can limit it. When the limiting shaft 10 limits the buckle 8, the first safety rope 4 and the second safety rope 6 can be connected together.
[0030] Specifically: the limiting plate 18 can engage with the internal teeth of the toothed buckle 13, and when the limiting plate 18 engages with the toothed buckle 13, it can limit the winding shaft 14.
[0031] Specifically: The inside of the bag body 1 has two through slots, through which the first safety rope 4 and the second safety rope 6 can extend to the outside. The through slots inside the bag body 1 make it easier to use the first safety rope 4 and the second safety rope 6.
[0032] Working principle: When in use, the bag body 1 is carried on both shoulders, and the first safety rope 4 and the second safety rope 6 are stretched and wrapped around the waist. The buckle 8 is inserted into the buckle 7. The spring 9 is used to limit the buckle 8 by the limiting shaft 10. At the same time, the coil spring 3 is used to rotate the first rotating rod 2 and the second rotating rod 5 to achieve a certain tightening effect, distributing some of the weight to the waist. When it is necessary to adjust the telescopic belt 19, the winding shaft 14 is rotated to tighten the telescopic belt 19. After tightening, the limiting plate 18 engages with the teeth inside the toothed buckle 13 to limit the winding shaft 14, which can quickly tighten the telescopic belt 19. Rotating the nut 16 releases the four-claw buckle 15 from limiting the toothed buckle 13, which can lengthen the telescopic belt 19.
[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A new type of backpack, comprising a bag body (1), characterized in that: The inside of the package body (1) is provided with two grooves, the inside of the left groove of the package body (1) movably sheaths a first rotating rod (2), the upper and lower ends of the first rotating rod (2) are fixedly installed with a coil spring (3), one side of the first rotating rod (2) is fixedly installed with a first safety rope (4), the inside of the right groove of the package body (1) movably sheaths a second rotating rod (5), one side of the second rotating rod (5) is fixedly installed with a second safety rope (6), one end of the first safety rope (4) is fixedly installed with a plug buckle (7), one end of the second safety rope (6) is fixedly installed with a buckle (8), the inside of the plug buckle (7) is provided with a circular hole, the inside of the circular hole of the plug buckle (7) is fixedly installed with a spring (9), the inside of the circular hole of the plug buckle (7) movably sheaths a limiting shaft (10), the outside of the package body (1) is fixedly connected with a shoulder strap (11), the outside of the shoulder strap (11) is fixedly connected with a sleeve (12), the shoulder strap (11) penetrates through the sleeve (12), the inside of the sleeve (12) movably sheaths a toothed buckle ring (13), the inside of the toothed buckle ring (13) movably sheaths a winding shaft (14), the inside of the sleeve (12) is fixedly connected with a four-jaw snap ring (15), the inside of the sleeve (12) is threadedly connected with a nut (16), the outside of the winding shaft (14) is fixedly installed with a fixed plate (17), the upper side of the fixed plate (17) is fixedly installed with a fixed shaft, the outside of the fixed shaft of the upper side of the fixed plate (17) is fixedly connected with an elastic plate (20), the upper side of the fixed plate (17) is fixedly installed with a rotating shaft, the outside of the rotating shaft of the upper side of the fixed plate (17) movably sheaths a limiting plate (18), the limiting plate (18) is fixedly connected with the elastic plate (20), the bottom of the package body (1) is fixedly installed with an elastic belt (19), one end of the winding shaft (14) extends to the inside of the shoulder strap (11) and is fixedly connected with the elastic belt (19).
2. A new type of backpack according to claim 1, characterized in that, One end of the spring (9) is fixedly connected with the limiting shaft (10), the circular hole of the plug buckle (7) can limit the limiting shaft (10).
3. The new type of backpack according to claim 1, characterized in that, The upper and lower ends of the second rotating rod (5) are fixedly installed with a coil spring (3).
4. The new type of backpack according to claim 1, characterized in that, The inside of the four-jaw snap ring (15) can be in contact with the outer surface of the toothed buckle ring (13).
5. The new type of backpack according to claim 1, characterized in that, The inside of the nut (16) can be in contact with the outer surface of the four-jaw snap ring (15).
6. The new type of backpack according to claim 1, characterized in that, The buckle (8) can be inserted into the inside of the plug buckle (7), and the limiting shaft (10) can limit it.
7. The new type of backpack according to claim 1, characterized in that, The limiting plate (18) can be engaged with the internal teeth of the toothed buckle ring (13).
8. The new type of backpack according to claim 1, characterized in that, The inside of the package body (1) is provided with two grooves, the first safety rope (4) and the second safety rope (6) can extend to the outside through the inside groove of the package body (1).