Backpack bearing structure

By introducing connecting components, waist components and waist support components into the backpack load structure, the problem that the backpack center of gravity cannot be firmly fixed at the waist is solved, and better load comfort and stability are achieved.

CN119111937APending Publication Date: 2024-12-13SHENZHEN AIMIDUO TECH CO LTD
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Patent Information

Application Number
CN202411496721.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2024-12-13

AI Technical Summary

Technical Problem

After adjusting the length of the shoulder strap, the backpack’s center of gravity may not be stable at the waist, resulting in excessive stress on the shoulders and poor comfort for the back.

Method used

A backpack carrying structure is designed, including a connecting component, a waist harness assembly and a waist support assembly. Through the fitting of the fixing belt and the connecting component, the waist support assembly can be adjusted in the height direction of the backpack body, contact the waist of the human body, and pass the waist harness. The component is connected to the torso, sharing the weight of the backpack body and reducing the amount of stress on the shoulder.

Benefits of technology

It effectively improves the comfort when carrying, reduces the burden on the shoulders by evenly sharing the weight, enhances the contact area between the waist and the back, and improves the comfort and stability of the backpack carrying.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of knapsacks, and discloses a knapsack bearing structure which comprises a knapsack body and shoulder straps connected with the knapsack body, and the knapsack body is used for containing articles. The backpack bearing structure further comprises a connecting assembly, a girdling assembly and a waist supporting assembly. The connecting assembly comprises a fixing belt and a connecting piece, the two ends of the fixing belt are arranged at intervals in the height direction of the backpack body, the two ends of the fixing belt are connected with the backpack body, and the connecting piece is arranged on the fixing belt and can move in the length direction of the fixing belt. The girdling assembly is connected to the connecting piece and configured to be connected with the trunk of the human body. The waist supporting assembly is connected to the girdling assembly and configured to make contact with the trunk of the human body and support the backpack body when the human body carries the backpack bearing structure. According to the backpack, the comfort of carrying the backpack carrying structure can be improved.
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Description

Technical Field

[0001] The present application relates to the technical field of backpacks, and in particular to a backpack carrying structure. Background Art

[0002] At present, the shoulder straps of backpack structures on the market are generally designed with adjustable lengths, which can be adjusted to accommodate people of different heights or body shapes. At the same time, by adjusting the length of the shoulder straps, the height of the center of gravity of the backpack can be adjusted to adjust the center of gravity of the backpack to the middle position of the human body's torso as much as possible, so as to achieve the effect of improving the comfort of carrying. However, after the center of gravity of the backpack is adjusted to a suitable position by adjusting the length of the shoulder straps, the lower end of the backpack is sometimes too high or too low, so that the lower end of the backpack cannot be supported by the waist, resulting in greater stress on the shoulders and poor carrying comfort. Summary of the invention

[0003] In view of this, the present application provides a backpack carrying structure, which can improve the comfort when carrying the backpack carrying structure.

[0004] An embodiment of the present application provides a backpack carrying structure, including a backpack body and shoulder straps, the shoulder straps are connected to the backpack body, and the backpack body is used to hold items. The backpack carrying structure also includes a connecting assembly, a waist assembly and a waist support assembly. The connecting assembly includes a fixing belt and a connecting piece, the two ends of the fixing belt are arranged at intervals along the height direction of the backpack body, and the two ends of the fixing belt are connected to the backpack body, and the connecting piece is arranged on the fixing belt and can move along the length direction of the fixing belt. The waist assembly is connected to the connecting piece and is configured to be connected to the torso of a human body. The waist support assembly is connected to the waist assembly, and the waist support assembly is configured to contact the torso of a human body and support the backpack body when a human body carries the backpack carrying structure.

[0005] In the above embodiment, the lumbar support assembly is connected to the fixing belt through the waist-binding assembly, so that the position of the lumbar support assembly can be adjusted along the height direction of the backpack body, so that after the human body carries such a backpack carrying structure, the lumbar support assembly can contact the waist of the human body. At the same time, the waist-binding assembly is connected to the torso, so that the backpack body, the lumbar support assembly, and the waist of the torso are stably connected to each other in sequence, so that the weight of the backpack body is transferred to the waist of the human body through the lumbar support assembly, so that the waist can share a part of the weight of the backpack body, thereby reducing the force on the shoulders, thereby improving the comfort of carrying such a backpack carrying structure.

[0006] In some embodiments of the present application, two groups of connection components are provided at intervals along the width direction of the backpack body, and the waist-binding component is connected to the connectors of the two groups of connection components.

[0007] In the above embodiment, the waist-binding assembly is connected to the connectors of the two groups of connecting assemblies, so that both sides of the backpack body can be evenly stressed, and the backpack body can be fully in contact with the human torso through the waist support assembly, thereby improving the uniformity of stress on the waist and back of the human body, which is conducive to further improving the comfort of carrying this backpack carrying structure.

[0008] In some embodiments of the present application, the side of the backpack body that is used to contact the back of the human body is the back, and a sub-component is provided on the back. The lumbar support assembly is provided with a mother component. The mother component and the sub-component are detachably connected, and at least one of the sub-component and the mother component is provided with multiple components in sequence along the up and down direction.

[0009] In the above embodiment, after the position adjustment of the lumbar support assembly is completed, the mother component and the child component are connected to each other to fix the lumbar support assembly to the backpack body, thereby improving the stability of the lumbar support assembly to maintain a fixed position and reducing the possibility of the lumbar support assembly being misplaced during the carrying process.

[0010] In some embodiments of the present application, the backpack body is provided with a guide portion, and the waist support assembly is provided with a sliding portion, and the sliding portion is slidably connected to the guide portion along the height direction of the backpack body.

[0011] In the above embodiment, the guide portion can guide the sliding portion to slide, thereby guiding the lumbar support assembly to move relative to the backpack body and constraining the position of the lumbar support assembly in the width direction of the backpack body, so that the lumbar support assembly can always remain in the middle position of the backpack body.

[0012] In some embodiments of the present application, the waist binding component and the waist support component are detachably connected.

[0013] In some embodiments of the present application, the connecting member is detachably connected to the fixing belt or the waist component is detachably connected to the connecting member.

[0014] In some embodiments of the present application, the waist assembly includes a fitting piece and a waist belt, the fitting piece is connected to the waist belt, and the fitting piece is detachably connected to the connecting piece, and the waist belt is configured to be connected to the torso of a human body.

[0015] In the above embodiment, when the weight of the items in the backpack body is relatively light and the waist of the human body does not need to bear the weight of the backpack body, the waist assembly can be removed to release the restraint on the waist of the torso, which is conducive to improving comfort.

[0016] In some embodiments of the present application, the waist assembly further includes a waist pad, which is disposed on one side of the waist belt and is configured to contact the human body's torso when the waist belt is connected to the human body's torso.

[0017] In the above embodiment, when the waist belt is connected to the torso, the waist pad separates the waist belt from the torso, so that the waist belt contacts the torso through the waist pad, which can increase the contact area between the waist belt and the torso and help improve comfort.

[0018] In some embodiments of the present application, the waist belt includes a first belt and a second belt, and the matching piece is connected to the first belt or the second belt. One end of the first belt and one end of the second belt are respectively connected to the waist support assembly, and the first belt and the second belt are configured to be able to pass around the torso of the human body and connect to each other.

[0019] In the above embodiment, when the waist belt is connected to the trunk, the first belt and the second belt can be respectively passed around the trunk and connected to each other at the front of the human body, which is convenient for operation.

[0020] In some embodiments of the present application, the waist belt further includes a first fastener and a second fastener, the first fastener is provided on the first belt, the second fastener is provided on the second belt, and the first fastener is configured to be detachably connected to the second fastener.

[0021] In the above embodiment, the first fastener and the second fastener are connected to each other, so that the first belt and the second belt can be connected, and the operation is quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a backpack carrying structure in one embodiment of the present application.

[0023] Figure 2 yes Figure 1 Schematic diagram of the backpack carrying structure with part of the structure removed provided.

[0024] Figure 3 yes Figure 1 A schematic diagram of the structure of the waist support assembly and the waist restraint assembly provided in.

[0025] Figure 4 yes Figure 3 Schematic diagram from another perspective.

[0026] Figure 5 yes Figure 1 A schematic cross-sectional view of a portion of the backpack carrying structure provided along line AA.

[0027] Main component symbols 100. Backpack carrying structure; 11. Backpack body; 111. Back; 112. Sub-component; 113. Guide part; 12. Connecting assembly; 121. Fixing belt; 122. Connecting piece; 13. Waist-binding assembly; 131. Matching piece; 132. Waist-binding belt; 1321. First belt; 1322. Second belt; 1323. First fastener; 1324. Second fastener; 1325. Hook; 133. Waist pad; 14. Waist support assembly; 141. Connecting ring; 142. Mother piece; 143. Sliding part; 15. Backboard. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0030] The terms “first”, “second”, etc. used herein are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0031] An embodiment of the present application provides a backpack carrying structure, including a backpack body and shoulder straps, the shoulder straps are connected to the backpack body, and the backpack body is used to hold items. The backpack carrying structure also includes a connecting assembly, a waist assembly and a waist support assembly. The connecting assembly includes a fixing belt and a connecting piece, the two ends of the fixing belt are arranged at intervals along the height direction of the backpack body, and the two ends of the fixing belt are connected to the backpack body, and the connecting piece is arranged on the fixing belt and can move along the length direction of the fixing belt. The waist assembly is connected to the connecting piece and is configured to be connected to the torso of a human body. The waist support assembly is connected to the waist assembly, and the waist support assembly is configured to contact the torso of a human body and support the backpack body when a human body carries the backpack carrying structure.

[0032] The waist support assembly is connected by a waist-binding assembly or a connecting member fixing belt, so that the position of the waist support assembly can be adjusted along the height direction of the backpack body, so that after the human body's torso carries this backpack carrying structure, the waist support assembly can contact the human body's waist. At the same time, the waist-binding assembly is connected to the torso, so that the backpack body, the waist support assembly, and the waist of the torso are stably connected to each other in sequence, so that the weight of the backpack body is transferred to the human body's waist through the waist support assembly, so that the waist can share a part of the weight of the backpack body, thereby reducing the force on the shoulders, thereby improving the comfort of carrying this backpack carrying structure.

[0033] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] Reference Figure 1 and Figure 2 One embodiment of the present application provides a backpack carrying structure 100, including a backpack body 11 and shoulder straps (not shown), the shoulder straps are connected to the backpack body 11, the backpack body 11 is used to hold items, and the shoulder straps are used to be mounted on the shoulders of the human body, so that the human body can carry the backpack body 11 on the back. In some embodiments, the shoulder straps are designed to be adjustable in length. For example, the shoulder straps include two webbings, the two webbings are respectively connected to the backpack body 11, and the two webbings are connected by a Japanese buckle or a mesh buckle, so that the length of the shoulder straps can be adjusted as needed. In other embodiments, the position where the shoulder straps are connected to the backpack body 11 can be adjusted up and down as needed. The connection structure between the shoulder straps and the backpack body 11 has been disclosed in the relevant technology and will not be repeated in this application.

[0035] For the convenience of description, this document defines the up, down, left, and right directions, wherein the up and down direction is the height direction of the backpack body 11, and the left and right direction is the width direction of the backpack body 11. It can be understood that the height direction of the backpack body 11 refers to the direction of the backpack body 11 after being carried on the back of a human body through the shoulder straps, and the width direction of the backpack body 11 refers to the direction parallel to the width direction of the human body's trunk after the backpack body 11 is carried on the back of a human body through the shoulder straps. In addition, it can be defined that after the backpack body 11 is carried on the back of a human body through the shoulder straps, the side of the backpack body 11 that faces the back of the human body is the back side 111.

[0036] Reference Figure 1 and Figure 2 In some embodiments, the backpack carrying structure 100 further includes a connecting component 12 , a waist component 13 and a waist support component 14 .

[0037] In some embodiments, two groups of connection components 12 are provided, and the two groups of connection components 12 are provided on the left and right sides of the backpack body 11, and a gap is formed between the two connection components 12. The connection component 12 includes a fixing belt 121 and a connector 122, and the two ends of the fixing belt 121 are spaced apart along the height direction of the backpack body 11, and the two ends of the fixing belt 121 are connected to the backpack body 11. In some embodiments, the two ends of the fixing belt 121 are respectively sewed and connected to the back surface 111. In other embodiments, the two ends of the fixing belt 121 can also be sewed and connected to the upper top surface and the lower bottom surface of the backpack body 11 respectively. In other embodiments, the two ends of the fixing belt 121 can also be sewed and connected to the corresponding left side or right side of the backpack body 11 respectively.

[0038] In some embodiments, the connecting member 122 is disposed on the fixing belt 121 and can move along the length direction of the fixing belt 121. The waist component 13 is connected to the connecting member 122 and is configured to be connected to the torso of the human body. The waist support component 14 is connected to the waist component 13. The waist support component 14 is connected to the waist component 13, and the waist support component 14 is configured to contact the torso of the human body and support the backpack body 11 when the human body carries the backpack carrying structure 100. It can be understood that the waist support component 14 is disposed on the back 111 of the backpack body 11, and the waist support component 14 is located between the two groups of connecting components 12.

[0039] The waist assembly 13 is connected to the fixing belt 121 through the connecting piece 122, so that the waist assembly 13 can drive the lumbar support assembly 14 to move in the up and down directions relative to the backpack body 11, so as to adjust the positions of the waist assembly 13 and the lumbar support assembly 14 relative to the backpack body 11, so that when the backpack body 11 is carried on the back of the human body and the waist assembly 13 is connected to the human body's torso, the lumbar support assembly 14 can contact the human body's waist and support the backpack body 11, so that the waist can bear part of the weight of the backpack body 11 to reduce the magnitude of the force acting on the shoulders.

[0040] In other embodiments, a group of connection components 12 may be provided, as long as the positions of the waist component 13 and the waist support component 14 can be adjusted along the height direction of the backpack body 11. For example, a group of connection components 12 may be provided in the middle of the back surface 111.

[0041] Reference Figure 3 and Figure 4 In some embodiments, the waist assembly 13 includes a fitting 131 and a waist belt 132, the fitting 131 is connected to the waist belt 132, and the fitting 131 is detachably connected to the connecting member 122, and the waist belt 132 is configured to be connected to the torso of the human body. In some embodiments, the waist belt 132 includes a first belt 1321 and a second belt 1322. One end of the first belt 1321 and one end of the second belt 1322 are respectively connected to the left and right ends of the waist support assembly 14; there are two fittings 131, and the two fittings 131 are respectively provided on the first belt 1321 and the second belt 1322, and the two fittings 131 are respectively connected to the connecting member 122 located on the corresponding side, so that the first belt 1321 and the second belt 1322 are respectively connected to the corresponding fixing belt 121. After the backpack body 11 is carried on the back of a person, the first belt 1321 and the second belt 1322 can be respectively passed around the torso of the person and connected to each other, so that the waist support assembly 14 is closely attached to the waist of the person.

[0042] Reference Figure 2 and Figure 4In some embodiments, the fitting member 131 is detachably connected to the connecting member 122. The connecting member 122 is a female buckle of a side-opening buckle, and the fitting member 131 is a male buckle of a side-opening buckle. In other embodiments, the connecting member 122 may be a male buckle of a side-opening buckle, and the fitting member 131 may be a female buckle of a side-opening buckle. In other embodiments, one of the connecting member 122 and the fitting member 131 may be a ring, and the other of the connecting member 122 and the fitting member 131 may be a spring hook. In other embodiments, the connecting member 122 and the fitting member 131 may also be other buckle or lock structures that can be detachably connected to each other.

[0043] In other embodiments, the second belt 1322 may be omitted, and the two fittings 131 are respectively provided at both ends of the first belt 1321. When fixing the waist assembly 13, the fitting 131 at one end of the first belt 1321 may be connected to one of the connecting pieces 122, and then the other end of the first belt 1321 may be passed around the torso of the human body and connected to the other connecting piece 122.

[0044] Reference Figure 3 In some embodiments, the waist belt 132 further includes a first fastener 1323 and a second fastener 1324, wherein the first fastener 1323 is disposed on the first belt 1321, and the second fastener 1324 is disposed on the second belt 1322, and the first fastener 1323 is configured to be detachably connected to the second fastener 1324. The first fastener 1323 is a female fastener of a side-opening buckle, and the second fastener 1324 is a male fastener of a side-opening buckle. In other embodiments, the first fastener 1323 may be a male fastener of a side-opening buckle, and the second fastener 1324 may be a female fastener of a side-opening buckle. In other embodiments, one of the first fastener 1323 and the second fastener 1324 may be a ring, and the other of the first fastener 1323 and the second fastener 1324 may be a spring hook. In other embodiments, the first fastener 1323 and the second fastener 1324 may also be other fasteners or lock structures that can be detachably connected to each other.

[0045] The first fastener 1323 and the second fastener 1324 are connected to each other, so that the first belt 1321 and the second belt 1322 are connected to each other, which is convenient for operation. In other embodiments, the first fastener 1323 and the second fastener 1324 can also be omitted, and the first belt 1321 and the second belt 1322 can be connected to each other by tying a knot.

[0046] In some embodiments, the waist assembly 13 further includes a waist pad 133, which is disposed on one side of the waist belt 132 and is configured to contact the torso of the human body when the waist belt 132 is connected to the torso of the human body. It is understood that there are two waist pads 133, and the two waist pads 133 are sewn and fixed to the first belt 1321 and the second belt 1322 respectively. In other embodiments, the waist pad 133 can also be connected to the first belt 1321 or the second belt 1322 by bonding or other means. When the first belt 1321 and the second belt 1322 are connected to the torso, the waist pad 133 separates the corresponding first belt 1321 or the second belt 1322 from the torso of the human body, so that the corresponding first belt 1321 or the second belt 1322 contacts the torso of the human body through the waist pad 133, which can increase the contact area between the first belt 1321 and the second belt 1322 and the torso of the human body, which is conducive to improving comfort.

[0047] In some embodiments, the lumbar support assembly 14 is a structural member made of a filling material wrapped in cloth, and the filling material can be sponge, cotton, rags, rubber blocks, grains, etc. In other embodiments, the lumbar support assembly 14 can also be a plastic sheet or other types of structural members.

[0048] Reference Figure 3 and Figure 4 , the left and right ends of the waist support component 14 are respectively formed with connecting rings 141 by sewing webbing, and the waist belt 132 of the waist component 13 is connected with a hook 1325 through webbing, and the hook 1325 is used to be snapped into the connecting ring 141, so that the two ends of the waist support component 14 can be detachably connected to the waist component 13. In other embodiments, the left and right ends of the waist support component 14 can also be detachably connected to the waist component 13 through other structural members. For example, the waist support component 14 can be connected to the waist component 13 through a side buckle. In other embodiments, the waist support component 14 can also be fixedly connected to the waist component 13, such as the waist support component 14 is fixedly connected to the waist belt 132 of the waist component 13 by sewing. In other embodiments, the waist support component 14 can also be connected to the connector 122 to be connected to the waist component 13.

[0049] Reference Figure 2 and Figure 4In some embodiments, a sub-component 112 is provided on the back side 111 of the backpack body 11, and a mother component 142 is provided on the waist support assembly 14. The mother component 142 is detachably connected to the sub-component 112, and at least one of the sub-component 112 and the mother component 142 is provided with a plurality of them in sequence along the up-down direction. In some embodiments, the sub-component 112 is one of the hook surface of Velcro and the fur surface of Velcro, and the mother component 142 is the other of the hook surface of Velcro and the fur surface of Velcro. It can be understood that in some embodiments, a plurality of hook surfaces or fur surfaces arranged in sequence along the up-down direction are respectively connected to each other to form a whole. In other embodiments, the sub-component 112 can also be one of the sub-button and the mother button in the sub-button, and the mother component 142 is the other of the sub-button and the mother button in the sub-button, and a plurality of the sub-button or the mother button are arranged at intervals along the up-down direction.

[0050] When the position adjustment of the lumbar support assembly 14 is completed, the mother component 142 and the child component 112 are connected to each other to fix the lumbar support assembly 14 to the backpack body 11, thereby improving the stability of the lumbar support assembly 14 to maintain a fixed position and reducing the possibility of the lumbar support assembly 14 being misplaced during the carrying process.

[0051] Reference Figure 2 and Figure 5 In some embodiments, the backpack body 11 is provided with a guide portion 113, and the waist support assembly 14 is provided with a sliding portion 143, and the sliding portion 143 is connected to the guide portion 113 along the up and down sliding. In some embodiments, the guide portion 113 is a guide bar, and the guide portion 113 is sewn and connected to the back surface 111; the sliding portion 143 is a sliding buckle, and the sliding buckle is connected to the waist support assembly 14. The sliding buckle is provided with a guide groove, and the guide groove is slidably matched with the guide bar. In some embodiments, the cross-section of the guide groove is roughly "C"-shaped, so that the sliding buckle is difficult to separate from the guide bar during the sliding process relative to the guide bar, thereby improving the stability of the sliding buckle and the guide bar. In other embodiments, the structure of the guide portion 113 and the sliding portion 143 can also refer to the structure of the fixing belt 121 and the connecting member 122 in this article. For example, the guide portion 113 is a cloth belt with two ends respectively fixed to the backpack body 11, and the sliding portion 143 is a ring set on the cloth belt.

[0052] The guide portion 113 can guide the sliding portion 143 to slide, thereby guiding the lumbar support assembly 14 to move relative to the backpack body 11, and can constrain the position of the lumbar support assembly 14 in the width direction of the backpack body 11, so that the lumbar support assembly 14 can always remain in the middle position of the backpack body 11.

[0053] In some embodiments, the backpack carrying structure 100 further includes a back plate 15, which is connected to the back surface 111 and is located above the waist support assembly 14. In some embodiments, a surface of the back plate 15 facing away from the backpack body 11 is provided with a cushion, and the cushion is configured to contact the back of a human body to improve comfort.

[0054] In some embodiments, the backpack carrying structure 100 is used as follows: After loading items into the backpack body 11, the length of the shoulder straps can be adjusted first so that the center of gravity of the backpack body 11 is roughly located in the middle of the human body's torso; then the position of the waist support component 14 is adjusted so that the waist support component 14 contacts the human waist; finally, the waist restraint component 13 is connected to the human body's torso.

[0055] The waist assembly 13 is connected to the human torso, so that the backpack body 11, the waist support assembly 14, and the human waist are stably connected to each other in sequence, so that the weight of the backpack body 11 is transferred to the human waist through the waist support assembly 14, so that the waist can share a part of the weight of the backpack body 11, thereby reducing the force on the shoulders, thereby improving the comfort of carrying such a backpack carrying structure 100.

[0056] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application and are not intended to be limiting of the present application. As long as they are within the spirit and scope of the present application, appropriate changes and modifications to the above embodiments are within the scope of the present application.

Claims

1. A backpack carrying structure, comprising a backpack body and shoulder straps, wherein the shoulder straps are connected to the backpack body, and the backpack body is used to hold items, characterized in that: The backpack carrying structure also includes: A connecting assembly, the connecting assembly comprising a fixing belt and a connecting piece, the two ends of the fixing belt are arranged at intervals along the height direction of the backpack body, and the two ends of the fixing belt are connected to the backpack body, and the connecting piece is arranged on the fixing belt and can move along the length direction of the fixing belt; A waist assembly connected to the connecting member and configured to be connected to a human body's torso; A waist support component is connected to the waist binding component, and the waist support component is configured to contact the trunk of the human body and support the backpack body when the human body carries the backpack carrying structure.

2. The backpack carrying structure according to claim 1, characterized in that: The connection components are arranged in two groups at intervals along the width direction of the backpack body, and the waist-binding component is connected to the connection pieces of the two groups of the connection components.

3. The backpack carrying structure according to claim 1, characterized in that: The side of the backpack body that contacts the back of the human body is the back, and the back is provided with a sub-component. The lumbar support assembly is provided with a mother component, and the mother component is detachably connected to the sub-component. At least one of the sub-component and the mother component is provided in plurality in sequence along the height direction of the backpack body.

4. The backpack carrying structure according to claim 1, characterized in that: The backpack body is provided with a guide part, and the waist support assembly is provided with a sliding part. The sliding part is slidably connected with the guide part along the height direction of the backpack body.

5. The backpack carrying structure according to claim 3 or 4, characterized in that: The waist-binding component is detachably connected to the waist-supporting component.

6. The backpack carrying structure according to claim 1, characterized in that: The connecting piece is detachably connected to the fixing belt or the waist-binding component is detachably connected to the connecting piece.

7. The backpack carrying structure according to claim 1, characterized in that: The waist-binding component comprises a fitting piece and a waist-binding belt, wherein the fitting piece is connected to the waist-binding belt, and the fitting piece is detachably connected to the connecting piece, and the waist-binding belt is configured to be connected to the trunk of the human body.

8. The backpack carrying structure according to claim 7, characterized in that: The waist-binding component further includes a waist pad, which is disposed on one side of the waist-binding belt and is configured to contact the torso of the human body when the waist-binding belt is connected to the torso of the human body.

9. The backpack carrying structure according to claim 7, characterized in that: The waist belt includes a first belt and a second belt, the matching piece is connected to the first belt or the second belt, one end of the first belt and one end of the second belt are respectively connected to the waist support component, and the first belt and the second belt are configured to be able to pass around the torso of the human body and be connected to each other.

10. The backpack carrying structure according to claim 9, characterized in that: The waist belt further includes a first fastener and a second fastener, wherein the first fastener is arranged on the first belt, and the second fastener is arranged on the second belt, and the first fastener is configured to be detachably connected to the second fastener.