Backpack with waist friction reducing structure

Abstract

The utility model relates to the technical field of knapsacks and discloses a knapsack with a waist friction reducing structure, which comprises a knapsack body, shoulder straps and limiting blocks, the shoulder straps and the limiting blocks are arranged on the back of the knapsack body, a back attaching part is arranged at one end, close to the shoulder straps, of the knapsack body, and a connecting belt is sewn on one side, close to the bottom, of one side, away from the back attaching part, of the knapsack body. A base plate is fixedly mounted at one side, which is positioned on the shoulder straps and is far away from the back attaching part, of the bag body, and a limiting strap is sewn on the outer surface of the base plate. According to the knapsack with the waist friction reducing structure, through the design of the contact block, when the knapsack body is used, the waist can be attached to the waist attaching part, then the weight is transmitted to the contact block through the base plate, then the waist of a user can be prevented from making direct contact with the back, friction borne by the user can be reduced, and through the fixing groove, the waist can be fixed; and the limiting block, the limiting block and the upper assembly can form a whole, so that the device moves on the surface of the base plate, and users can adapt to different activities.

Description

Technical Field

[0001] The utility model relates to the technical field of backpacks, in particular to a backpack with a structure for reducing waist friction. Background Art

[0002] In modern life, backpacks have become an indispensable item for people's travel, work and study. As people's requirements for backpack comfort and practicality continue to increase, the need to reduce waist friction has become increasingly prominent. Currently, most backpacks on the market often ignore the problem of waist friction when designing. When people carry backpacks for a long time, the friction between the backpack and the waist can cause discomfort and may even cause skin abrasion and pain.

[0003] In addition, different people will experience different waist friction when using backpacks due to differences in body shape, activity methods and carrying weight. Taller or thinner people may feel waist friction more easily, while people who often engage in outdoor activities or need to walk for long periods of time will also be more sensitive to waist friction.

[0004] Chinese utility model patent announcement number: CN213215801U, discloses: a backpack support structure and a backpack having the same, the backpack support structure and the backpack having the same, the backpack support structure and the backpack having the same are provided with a spine protector that is adapted to the shape of the spine and a backrest that fits the waist on the back. When a child carries the backpack, the transition between the spine protector and the backrest allows the backpack's gravity to be evenly distributed on the back and shoulders when the backpack is carried, reducing the pressure on the spine. However, the backpack support structure and the backpack having the same are not designed with an anti-friction structure. The design of the spine protector will still cause the user's waist to contact the backpack when the load is heavy or the backpack is carried for a long time, thereby causing friction, resulting in poor comfort when carrying the backpack for a long time. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a backpack with a structure for reducing waist friction, which can effectively solve the problem in the prior art that when the user carries a heavy load or carries the backpack for a long time, the user's waist will still come into contact with the backpack, causing friction, resulting in poor comfort when carrying the backpack for a long time.

[0006] The technical solution adopted by the present invention is: a backpack with a structure for reducing waist friction, comprising a bag body and shoulder straps and a limit block arranged on the back of the bag body, wherein the bag body is provided with a back pad at one end close to the shoulder strap, and a connecting belt is sewn on a side of the bag body close to the bottom away from the back pad; a base plate is fixedly installed on the end of the bag body located on one side of the shoulder strap and away from the back pad, a limit belt is sewn on the outer surface of the base plate, a fixing bolt penetrating the limit block and threadedly connected to the limit block is provided on the outer surface of the limit block, a fitting plate is fixedly installed on the other side of the limit block away from the fixing bolt, and a waist pad is fixedly installed on the other side of the fitting plate away from the limit block.

[0007] Preferably, the substrate is made of ABS material and is located below the back portion of the sticker.

[0008] Through the above technical solution, the base plate is made of ABS material with high strength and toughness, which enables the base plate to withstand greater pressure and impact, and is located below the back. When carrying a backpack, the weight can be dispersed on the base plate, and the back can be in a hollow state. The entire backpack is based on the base plate and contacts the human body, which can enhance the breathability of the entire backpack and avoid long-term use and discomfort in the back.

[0009] Preferably, a contact block in contact with the substrate is fixedly mounted on the outer surface of the limiting block, and the cross section of the contact block is an "elliptical" structure.

[0010] Through the above technical solution and the design of the contact block, when the bag is used, the waist can be fitted against the waist, and then the weight is transferred to the contact block through the substrate, which can avoid direct contact between the user's waist and back, thereby reducing the friction.

[0011] Preferably, the limiting blocks, fixing bolts and contact blocks are provided in two identical groups, and each group of the limiting blocks, fixing bolts and contact blocks is provided with two identical ones that are symmetrically distributed about the center line of the substrate.

[0012] Through the above technical solution, through the design of two sets of limit blocks, fixing bolts and contact blocks, the backpack can be subjected to more uniform force during use, further enhancing the stability of the backpack.

[0013] Preferably, the other end of the limiting belt away from the base plate is provided with a suture sewn to the connecting belt, and the side of the limiting block close to the package body is provided with a fixing groove adapted to the limiting belt.

[0014] Through the above technical solution, through the design of the stitching, one end of the connecting belt can be firmly fixed to the connecting belt, which can reduce the risk of breakage, and through the fixing groove, it can form a whole with the limit block and the upper component, so that it can move on the surface of the substrate, so that the user can adapt to different activities.

[0015] Preferably, the waist-attaching portion is made of cotton material, and a plurality of equally spaced ventilation grooves are provided through the outer surface of the waist-attaching portion.

[0016] Through the above technical solution, the waist patch is made of cotton material, which is soft and comfortable, does not cause irritation when in contact with the skin, and can bring a good tactile experience to the user. In addition, the cotton material is hygroscopic and breathable, which can absorb sweat generated by the waist, keep the waist dry, and improve the comfort of use. In addition, the ventilation groove can increase air circulation, further improving the breathability of the waist patch.

[0017] Preferably, the outer surface of the waist-fitting portion is provided with a groove 1 and a groove 2, the cross section of the groove 1 is a "semi-elliptical" structure, and the groove 1 is located on both sides of the center line of the waist-fitting portion.

[0018] The above technical solution, through the design of grooves 1 and 2, can better fit the curve of the human waist. When the user wears the backpack, groove 1 can match the natural curvature of the waist, increasing the contact area between the waist and the backrest, so that the pressure can be more evenly distributed on the waist.

[0019] Compared with the prior art, the present invention provides a backpack with a structure for reducing waist friction, which has the following beneficial effects:

[0020] 1. This backpack with a structure that reduces waist friction uses a cotton material to fit the waist. The material is soft and comfortable, and does not cause irritation when in contact with the skin, providing a good tactile experience for the user. The cotton material is hygroscopic and breathable, absorbing sweat from the waist to keep it dry and improve user comfort. The ventilation grooves can increase air circulation, further improving the breathability of the waist.

[0021] 2. This backpack with a structure that reduces waist friction can better fit the curve of the human waist through the design of grooves 1 and 2. When the user carries the backpack, groove 1 can match the natural curvature of the waist, increasing the contact area between the waist and the waist, so that the pressure can be more evenly distributed on the waist.

[0022] 3. The backpack with a structure for reducing waist friction can fit the waist tightly when the bag is used through the design of the contact block. The weight is then transferred to the contact block through the base plate, which prevents the user's waist from directly contacting the back, reducing the friction it is subjected to. In addition, through the fixing groove, it can form a whole with the limit block and the upper component, so that it can move on the surface of the base plate, allowing the user to adapt to different activities. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model Figure 3 ;

[0026] Figure 4 This is a schematic diagram of the split structure of the base plate and the limiting belt of the utility model;

[0027] Figure 5 This is a schematic diagram of the installation structure of the laminating plate and waist laminating part of the utility model;

[0028] Figure 6 This is a schematic diagram of the installation structure of the limit block and the fixing bolt of the utility model;

[0029] Figure 7 This is a schematic diagram of the disassembled structure of the limit block and the fixing bolt of the utility model.

[0030] Among them: 1. Bag body; 2. Back sticker; 3. Shoulder strap; 4. Connecting belt; 5. Base plate; 6. Limiting belt; 7. Stitching; 8. Limiting block; 9. Fixing bolt; 10. Contact block; 11. Fitting plate; 12. Waist sticker; 13. Breathable groove; 14. Groove 1; 15. Groove 2; 16. Fixing groove. DETAILED DESCRIPTION

[0031] 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.

[0032] Example 1: Figure 1-7 As shown, the utility model provides a backpack with a structure for reducing waist friction, comprising a bag body 1 and a shoulder strap 3 and a limit block 8 arranged on the back of the bag body 1, a back sticker 2 is provided at one end of the bag body 1 close to the shoulder strap 3, a connecting belt 4 is sewn on a side of the bag body 1 close to the bottom away from the back sticker 2, a base plate 5 is fixedly installed on one end of the bag body 1 located on one side of the shoulder strap 3 and away from the back sticker 2, a limit belt 6 is sewn on the outer surface of the base plate 5, a fixing bolt 9 is provided on the outer surface of the limit block 8 that passes through the limit block 8 and is threadedly connected to the limit block 8, a fitting plate 11 is fixedly installed on the other side of the limit block 8 away from the fixing bolt 9, and a waist sticker 12 is fixedly installed on the other side of the fitting plate 11 away from the limit block 8.

[0033] Specifically, the base plate 5 is made of ABS material, and the base plate 5 is located below the back portion 2. The advantage is that the base plate 5 is made of ABS material, which has high strength and toughness, which enables the base plate 5 to withstand greater pressure and impact force, and is located below the back portion 2. When carrying a backpack, the weight can be dispersed on the base plate 5, and the back portion 2 can be in a hollow state, so that the entire backpack is based on the base plate 5 and contacts the human body, which can enhance the breathability of the entire backpack and avoid long-term use and discomfort in the back.

[0034] Specifically, a contact block 10 in contact with the base plate 5 is fixedly mounted on the outer surface of the limit block 8. The cross-section of the contact block 10 is an "elliptical" structure. The advantage is that through the design of the contact block 10, when the bag body 1 is used, the waist can be fitted to the waist-fitting portion 12, and then the weight is transferred to the contact block 10 through the base plate 5, and then the user's waist can be prevented from directly contacting the back, which can reduce the friction it is subjected to.

[0035] Specifically, two identical groups of limit blocks 8, fixing bolts 9 and contact blocks 10 are provided, and each group of limit blocks 8, fixing bolts 9 and contact blocks 10 is provided with two identical ones that are symmetrically distributed about the center line of the substrate 5. The advantage is that through the design of two groups of limit blocks 8, fixing bolts 9 and contact blocks 10, the backpack can be subjected to more uniform force during use, further enhancing the stability of the backpack.

[0036] Example 2: Figure 2-7 As shown, it is an improvement to the previous embodiment.

[0037] Specifically, the other end of the limiting belt 6 away from the base plate 5 is provided with a stitching 7 sewn with the connecting belt 4, and the side of the limiting block 8 close to the package body 1 is provided with a fixing groove 16 adapted to the limiting belt 6. The advantage is that through the design of the stitching 7, one end of the connecting belt 4 can be firmly fixed to the connecting belt 4, which can reduce the risk of breakage, and through the fixing groove 16, it can form a whole with the limiting block 8 and the upper component, so that it can move on the surface of the base plate 5, so that the user can adapt to different activities.

[0038] Specifically, the waist patch 12 is made of cotton material, and a plurality of equally spaced ventilation grooves 13 are provided on the outer surface of the waist patch 12. The advantage is that the waist patch 12 made of cotton material is soft and comfortable, and does not cause irritation when in contact with the skin, which can bring a good tactile experience to the user. In addition, the cotton material is hygroscopic and breathable, which can absorb sweat generated by the waist, keep the waist dry, and improve the comfort of use. In addition, the ventilation grooves 13 can increase air circulation, further improving the breathability of the waist patch 12.

[0039] Specifically, the outer surface of the waist-supporting portion 12 is provided with a first groove 14 and a second groove 15. The first groove 14 has a semi-elliptical cross-section and is located on either side of the centerline of the waist-supporting portion 12. This advantageously allows the design of the first and second grooves 14, 15 to better conform to the curve of the waist. When the user wears the backpack, the first groove 14 matches the natural curvature of the waist, increasing the contact area between the waist-supporting portion 12 and the waist, thereby more evenly distributing pressure on the waist.

[0040] Working principle: When in use, the base plate 5 is made of ABS material with high strength and toughness, which enables the base plate 5 to withstand greater pressure and impact force, and is located below the backrest 2. When carrying a backpack, the weight can be dispersed on the base plate 5, and the backrest 2 can be in a hollow state, so that the entire backpack is based on the base plate 5 and in contact with the human body, which can enhance the breathability of the entire backpack and avoid long-term use causing discomfort to the back. Through the design of the contact block 10, when the bag body 1 is used, the waist can be fitted to the waistrest 12, and then the weight is transferred to the contact block 10 through the base plate 5, and then the user's waist can be avoided from directly contacting the back, which can reduce the friction it is subjected to. Through the design of two sets of limit blocks 8, fixing bolts 9 and contact blocks 10, the backpack can be subjected to more uniform force during use. , further enhancing the stability of the backpack. The design of the stitching 7 can firmly fix one end of the connecting strap 4 to the connecting strap 4, reducing the risk of breakage. The fixing groove 16 can form a whole with the limit block 8 and the upper component, so that it can move on the surface of the base plate 5, allowing the user to adapt to different activities. The waist patch 12 made of cotton material is soft and comfortable, and does not cause irritation when in contact with the skin, which can provide the user with a good tactile experience. The cotton material is hygroscopic and breathable, which can absorb sweat generated by the waist, keep the waist dry, and improve the comfort of use. In combination with the ventilation groove 13, it can increase air circulation and further improve the breathability of the waist patch 12. The design of groove 14 and groove 2 15 can better fit the curve of the human waist. When the user carries the backpack, groove 14 can match the natural curvature of the waist, increasing the contact area between the waist patch 12 and the waist, so that the pressure can be more evenly distributed on the waist.

[0041] 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 backpack with a structure for reducing waist friction, comprising a bag body (1) and shoulder straps (3) and a stopper (8) arranged on the back of the bag body (1), characterized in that: The bag body (1) is provided with a back part (2) at one end close to the shoulder strap (3), and a connecting belt (4) is sewn on a side of the bag body (1) close to the bottom and away from the back part (2). The bag body (1) is fixedly installed with a base plate (5) at one end located on one side of the shoulder strap (3) and away from the back part (2). A limiting belt (6) is sewn on the outer surface of the base plate (5). A fixing bolt (9) passing through the limiting block (8) and threadedly connected to the limiting block (8) is provided on the outer surface of the limiting block (8). A bonding plate (11) is fixedly installed on the other side of the limiting block (8) away from the fixing bolt (9), and a waist part (12) is fixedly installed on the other side of the bonding plate (11) away from the limiting block (8).

2. The backpack with a structure for reducing waist friction according to claim 1, characterized in that: The substrate (5) is made of ABS material, and the substrate (5) is located below the back portion (2).

3. The backpack with a structure for reducing waist friction according to claim 1, characterized in that: A contact block (10) in contact with the base plate (5) is fixedly mounted on the outer surface of the limit block (8), and the cross section of the contact block (10) is an "elliptical" structure.

4. The backpack with a structure for reducing waist friction according to claim 3, characterized in that: The limit blocks (8), fixing bolts (9) and contact blocks (10) are provided in two identical groups, and each group of the limit blocks (8), fixing bolts (9) and contact blocks (10) is provided with two identical ones that are symmetrically distributed about the center line of the substrate (5).

5. The backpack with a structure for reducing waist friction according to claim 1, characterized in that: The other end of the limiting belt (6) away from the base plate (5) is provided with a stitching line (7) sewn together with the connecting belt (4), and the side of the limiting block (8) close to the package body (1) is provided with a fixing groove (16) adapted to the limiting belt (6).

6. The backpack with a structure for reducing waist friction according to claim 1, characterized in that: The waist-adhesive portion (12) is made of cotton material, and a plurality of equally spaced ventilation grooves (13) are provided on the outer surface of the waist-adhesive portion (12).

7. The backpack with a structure for reducing waist friction according to claim 6, characterized in that: The outer surface of the waist-fitting portion (12) is provided with a groove 1 (14) and a groove 2 (15), the cross section of the groove 1 (14) is a "semi-elliptical" structure, and the groove 1 (14) is located on both sides of the center line of the waist-fitting portion (12).

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