Backpack

By designing a detachable back panel module in the backpack, the inconvenience caused by the toughness and fixation of the back panel is solved, and the backpack is made convenient to manufacture and comfortable to use, adapting to the needs of different body shapes.

CN223310833UActive Publication Date: 2025-09-09GUANGZHOU XINTIAN TRADING CO LTD
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Patent Information

Application Number
CN202422664414.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-09-09
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

The back panel of a conventional backpack has fixed toughness and cannot be adapted to users of different body shapes, resulting in difficulty in turning the bag over or poor support, affecting the user experience.

Method used

The back panel module is located outside the bag body and is detachably connected to the back panel body using Velcro or locking parts. The back panel module is a multi-layer structure including buffer parts, protective parts and back panels, providing stable support and cushioning to adapt to the needs of different body shapes.

Benefits of technology

The backpack is easy to make and comfortable to use, reduces the burden on shoulders, adapts to the needs of different body shapes, and improves the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a knapsack which comprises a knapsack body and a backboard module, the knapsack body comprises a main body and a rear piece body, and the main body and the rear piece body are connected and jointly define a containing space for containing articles; the backboard module is tightly attached to the side, away from the containing space, of the rear sheet body and detachably connected with the rear sheet body. According to the knapsack, the back plate module is located outside the knapsack body and detachably connected with the rear piece body, after the knapsack body is sewn and manufactured, bag turning operation can be smoothly completed under the condition that the bag turning operation is not affected by the back plate module, the knapsack body is made more convenient, and in addition, after the back plate module is connected with the rear piece body, the bag turning operation is more convenient. The back plate module can provide stable support for articles placed in the bag body, further, due to the fact that the back plate module is detachably connected with the back sheet body, the back plate module can be replaced, the bag body can be connected with back plate modules of different shapes and different toughness in a matched mode, and therefore the use requirements of users of various postures are met. And the use experience of the user is improved.
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Description

Technical Field

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

[0002] Backpacks are daily necessities that people frequently use in their daily lives. They can be used to store items that people carry with them, bringing great convenience to people's lives.

[0003] Conventional backpacks typically use a flexible material to create a back panel, which is then sewn into the bag body. After the bag is flipped open, the shoulder straps are connected to the back panel to complete the backpack. However, a less flexible back panel is less likely to deform, making flipping the bag more difficult. A more flexible back panel is more likely to deform, making it less supportive. Furthermore, because the back panel is sewn into the bag body, its flexibility is fixed, making it unsuitable for users of all shapes and sizes, which in turn affects the user experience. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a backpack that is easy to manufacture and has a good user experience.

[0005] An embodiment of the present application provides a backpack, comprising:

[0006] The bag body includes a main body and a rear panel, wherein the main body and the rear panel are connected to form a storage space for storing items; and

[0007] The back panel module is closely attached to a side of the rear panel away from the accommodation space and is detachably connected to the rear panel.

[0008] In one embodiment, the package body includes a first connecting piece, which is connected to the side of the rear plate body facing away from the accommodating space, and the back panel module includes a back panel and a second connecting piece connected to the back panel; one of the first connecting piece and the second connecting piece is a Velcro fur surface, and the other is a Velcro hook surface.

[0009] In one embodiment, the rear panel has a top edge and a bottom edge opposite to the top edge at the connection point with the main body, and the first connecting piece extends from the bottom edge to the top edge.

[0010] In one embodiment, the second connecting piece has the same size and shape as the back plate.

[0011] In one embodiment, the backplane module has a multi-layer structure; the backplane module includes a buffer and a protective member, and the protective member, the buffer, the backplane, and the second connecting piece are stacked in sequence.

[0012] In one embodiment, the protective member is connected to the second connecting piece to fully wrap the buffer member and the back panel; and / or the back panel has a front side, a back side opposite to the front side, and a peripheral side surface connected between the front side and the back side surface, the front side surface faces away from the rear panel, and the back side surface faces the rear panel; the back panel is embedded in the buffer member, and part of the buffer member extends from the front side surface to the back side surface and completely covers the peripheral side surface.

[0013] In one embodiment, a first connection hole is provided on the rear panel, a second connection hole is provided on the back panel module, and the backpack includes a locking member, which passes through the second connection hole and the first connection hole and locks the back panel module to the rear panel.

[0014] In one embodiment, there are multiple first connection holes and multiple second connection holes, and they correspond one to one; there are multiple locking members, and multiple locking members are passed through multiple second connection holes in a one-to-one correspondence.

[0015] In one embodiment, the rear panel has a top edge and a bottom edge opposite to the top edge at the connection with the main body, and the plurality of first connection holes are distributed near the top edge and near the bottom edge.

[0016] In one embodiment, the backpack includes shoulder straps connected to the connection between the main body and the rear panel.

[0017] The beneficial effects of the backpack provided by the embodiment of the present application are that the back panel module is located outside the bag body and is detachably connected to the rear panel body. In this way, after the bag body is sewn, the bag turning operation can be smoothly completed without being affected by the back panel module, making the bag body more convenient to make. In addition, after the back panel module is connected to the rear panel body, the back panel module can provide stable support for the items placed in the bag body, effectively distributing the weight of the items in the bag body to multiple parts of the human body, preventing the weight of the items from causing direct pressure on the user's back, and greatly reducing the burden on the shoulders, thereby improving the user's experience. Furthermore, since the back panel module is detachably connected to the rear panel body, the back panel module can be replaced, and the bag body can be connected with back panel modules of different shapes and different toughness, thereby meeting the needs of users of various body shapes and improving the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 A schematic structural diagram of a backpack provided in one embodiment of the present application;

[0020] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the backpack shown;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the bag body in the backpack shown;

[0022] Figure 4 for Figure 1 A schematic structural diagram of an embodiment of a backboard module in a backpack shown;

[0023] Figure 5 for Figure 1 A schematic structural diagram of another embodiment of a backboard module in the backpack shown;

[0024] Figure 6 A schematic structural diagram of a backpack provided in another embodiment of the present application;

[0025] Figure 7 for Figure 6 Schematic diagram of the exploded structure of the backpack shown;

[0026] Figure 8 for Figure 6 A schematic diagram of the structure of the bag body in the backpack shown;

[0027] Among them, the reference numerals in the figures are:

[0028] 10. Backpack; 100. Back panel module; 110. Back panel; 111. Front; 112. Back; 113. Side; 120. Second connecting piece; 130. Buffer; 131. Main body; 132. Support; 140. Protective piece; 150. Ventilation hole; 160. Second connecting hole; 200. Bag body; 210. Main body; 220. Back panel; 221. Top edge; 222. Bottom edge; 230. First connecting piece; 240. First connecting hole; 300. Locking piece; 400. Shoulder strap. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0030] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0033] Please also refer to Figures 1 to 8 , the backpack 10 provided in the embodiment of the present application is now described.

[0034] Combine Figures 1 to 5 As shown, the backpack 10 includes a bag body 200 and a back panel module 100. The bag body 200 includes a main body 210 and a rear panel 220. The main body 210 and the rear panel 220 are connected and together form a storage space (not shown) for storing items. The back panel module 100 is closely attached to the side of the rear panel 220 facing away from the storage space and is detachably connected to the rear panel 220.

[0035] It is understood that when the backpack 10 is worn on the user's back, the side of the bag body 200 facing the user's back is the rear panel 220, and the structural portion of the bag body 200 that is connected to the rear panel 220 and together forms a storage space for storing items is the main body 210. The rear panel 220 and the main body 210 can be made of the same or different materials.

[0036] The back panel module 100 is detachably connected to the rear panel 220 so that the bag can be turned over smoothly without being affected by the back panel module 100 after the main body 210 and the rear panel 220 are sewn together, thereby making the bag 200 easier to manufacture. In addition, after the back panel module 100 and the rear panel 220 are connected, the back panel module 100 can provide a firm support for the items placed in the bag 200, effectively distributing the weight of the items in the bag 200 to multiple parts of the human body, preventing the weight of the items from directly pressuring the user's back and greatly reducing the burden on the shoulders, thereby improving the user's experience. Furthermore, since the back panel module 100 and the rear panel 220 are detachably connected, the back panel module 100 can be replaced, and the bag body 200 can be connected with back panel modules 100 of different shapes and toughness, thereby meeting the needs of users of various body shapes and improving the user's experience.

[0037] In one embodiment, the bag body 200 includes a first connecting piece 230 connected to the side of the rear panel 220 facing away from the receiving space. The back panel module 100 includes a back panel 110 and a second connecting piece 120 connected to the back panel 110. One of the first connecting piece 230 and the second connecting piece 120 has a Velcro loop surface, and the other has a Velcro hook surface. As can be appreciated, the bag body 200 and the back panel module 100 are detachably connected via Velcro, resulting in a simple structure and easy assembly and disassembly.

[0038] In the present application, the back panel 110 is a flat plate structure, that is, the back panel 110 is a solid flat plate, which provides better support. In other embodiments, the back panel 110 can also be a hollow frame structure, that is, the back panel 110 has a frame structure similar to a railing, which can meet the support requirements while reducing the weight of the back panel 110. The back panel 110 can be made of materials such as plastic and aluminum alloy. The specific material can be set according to actual needs and is not limited to this.

[0039] Combine Figures 1 to 3 As shown, specifically, the rear panel 220 has a top edge 221 and a bottom edge 222 opposite to the top edge 221 at the connection with the main body 210. The first connecting piece 230 extends from the bottom edge 222 to the top edge 221 and has a rectangular shape. It will be understood that when the backpack 10 is carried on the back of the user, the top edge 221 and the bottom edge 222 are two vertically opposite edges of the rear panel 220, with the top edge 221 being at a high position and the bottom edge 222 being at a low position.

[0040] By extending the first connecting piece 230 from the bottom edge 222 to the top edge 221, the first connecting piece 230 can provide a larger range area for cooperating and connecting with the second connecting piece 120, so as to facilitate better connection with the second connecting piece 120. Moreover, each position on the rear plate body 220 from the top edge 221 to the bottom edge 222 can have a higher connection strength with the back panel module 100 through the connection between the first connecting piece 230 and the second connecting piece 120, thereby reducing the possibility of the rear plate body 220 and the back panel module 100 being separated due to the weight in the package body 200.

[0041] like Figure 2 As shown, specifically in the present application, the second connecting piece 120 and the back panel 110 have the same size and shape. Such a configuration allows the second connecting piece 120 to just cover the back panel 110, thereby allowing the second connecting piece 120 to provide a larger range area for connecting with the first connecting piece 230, so as to improve the connection stability between the second connecting piece 120 and the first connecting piece 230 and reduce the possibility of separation between the first connecting piece 230 and the second connecting piece 120. In addition, such a configuration can also allow the bag body 200 and its weight to be applied to all positions of the entire back panel 110 through the second connecting piece 120, thereby avoiding the problem of abnormal deformation of the back panel 110 due to excessive local force.

[0042] Combine Figure 2 、 Figure 4 、 Figure 5 As shown, in the present application, the backplane module 100 has a multi-layer structure, and the backplane module 100 includes a buffer 130 and a protective member 140 , and the protective member 140 , the buffer 130 , the backplane 110 , and the second connecting piece 120 are stacked in sequence.

[0043] The cushioning member 130 is located on the side of the back panel 110 closest to the user's back. The cushioning member 130 is flexible and deformable, providing a cushioning effect. Therefore, when in contact with the user's back, the cushioning member 130 deforms to reduce pressure on the user's back and improve back comfort. Specifically, the cushioning member 130 can be made of materials such as EVA, sponge, and latex. The specific material can be selected based on actual needs and is not limited to this.

[0044] Furthermore, the cushioning member 130 includes a main body 131 and a plurality of support portions 132 connected to the main body 131 on a side facing away from the back plate 110. The plurality of support portions 132 are spaced apart on the side of the main body 131 facing away from the back plate 110. By providing the plurality of spaced apart support portions 132 on the main body 131, the plurality of support portions 132 can be brought into contact with key stress-bearing locations on the user's back in a one-to-one correspondence. This prevents locations on the main body 131 where no support portions 132 are provided from contacting the user's back, thereby reducing the contact area between the cushioning member 130 and the user's back and providing improved ventilation. Specifically, the plurality of support portions 132 can have the same or different shapes, but the overall arrangement is symmetrical, with the user's spine as the axis of symmetry.

[0045] Furthermore, the cushioning member 130 is an integrally formed structure, that is, the main body 131 and the plurality of support portions 132 are formed in one go, which reduces the difficulty of manufacturing the cushioning member 130 and improves the structural integrity. For example, the cushioning member 130 can be formed in one go by processes such as foaming, hot pressing, and injection molding.

[0046] Protective member 140 covers cushioning member 130 and comes into direct contact with the user's back, absorbing sweat and protecting cushioning member 130. Protective member 140 can be made of materials such as lycra, cotton, and synthetic fibers. Furthermore, the shape of protective member 140 is consistent with the surface shape of cushioning member 130 to ensure good adhesion between the two.

[0047] For the entire backplane module 100 , the four-layer structure can be firmly connected together to form a whole by pressing or adhering with an adhesive.

[0048] Furthermore, if Figure 4 、 Figure 5 As shown, the protective member 140 is connected to the second connecting piece 120 to fully wrap the buffer member 130 and the back panel 110. It can be understood that after the protective member 140 and the second connecting piece 120 are connected, the buffer member 130 and the back panel 110 are completely wrapped therein, so that the structural integrity of the entire back panel module 100 is better, and the problem of separation of the components is not easy to occur. In addition, the whole formed by the connection between the protective member 140 and the second connecting piece 120 becomes the appearance structure of the back panel module 100, which also improves the consistency of the appearance structure of the back panel module 100. Furthermore, the whole formed by the connection between the protective member 140 and the second connecting piece 120 can also play a protective role on the periphery of the back panel 110, thereby blocking the direct contact between the user's hand and the sharp edge of the back panel 110, so as to avoid injury to the user's hand, thereby improving the user's experience.

[0049] In this application, if Figure 5 As shown, the back panel 110 has a front face 111, a back face 112 opposite the front face 111, and a peripheral side surface 113 connected between the front face 111 and the back face 112. The front face 111 faces away from the rear panel 220, and the back face 112 faces the rear panel 220. The back panel 110 is embedded in a cushioning member 130, with a portion of the cushioning member 130 extending from the front face 111 to the back face 112 and completely covering the peripheral side surface 113. It will be understood that the side of the cushioning member 130 facing the front face 111 is recessed to form a receiving groove that precisely accommodates the back panel 110. When the back panel 110 is accommodated in the receiving groove, the portion of the cushioning member 130 that forms the sidewalls of the receiving groove completely covers the entire peripheral side surface 113 of the back panel 110, shielding the peripheral side surface 113 from exposure. In this manner, the peripheral side surface 113 is completely shielded from contact with the user's hand and prevents any damage to the user's hand. Furthermore, after the protective member 140 is connected to the second connecting piece 120 to fully wrap the buffer member 130 and the back panel 110, the buffer member 130, the protective member 140 and the second connecting piece 120 can form a two-layer protection around the peripheral side surface 113 of the back panel 110, completely preventing the user's hands from being injured, providing the user with a more comfortable contact feeling, and improving the user experience.

[0050] It should be noted that, in other embodiments, only the protective member 140 may be connected to the second connecting piece 120 to fully wrap the buffer member 130 and the back plate 110, while the buffer member 130 does not cover the peripheral side surface 113 (e.g., Figure 4 Alternatively, the buffer member 130 may only cover the peripheral side surface 113, while the protective member 140 and the second connecting piece 120 do not fully wrap the buffer member 130 and the back plate 110. Both of these solutions can form a layer of protection around the peripheral side surface 113 of the back plate 110 to prevent the user's hands from being injured.

[0051] like Figure 1 As shown, in the present application, the back panel module 100 is provided with a plurality of ventilation holes 150 extending from the front surface 111 to the back surface 112. The plurality of ventilation holes 150 are arranged at intervals. By providing the plurality of ventilation holes 150 on the back panel module 100, the heat generated by the user's back can be quickly dissipated through the plurality of ventilation holes 150, thereby preventing heat concentration and sweating.

[0052] Specifically, among the multiple ventilation holes 150, some ventilation holes 150 can pass through the entire backplane module 100 at positions corresponding to the main body 131 where no support portion 132 is provided, and some ventilation holes 150 can pass through the entire backplane module 100 corresponding to positions of the support portion 132.

[0053] Specifically, some of the ventilation holes 150 are circular, and some of the ventilation holes 150 are elongated. The shapes of the plurality of ventilation holes 150 can be the same or different, but the overall arrangement is symmetrical with the user's spine as the axis of symmetry.

[0054] Combine Figures 6 to 8 As shown, in another embodiment, a first connection hole 240 is formed on the rear panel 220, a second connection hole 160 is formed on the back panel module 100, and the backpack 10 includes a locking member 300. The locking member 300 passes through the second connection hole 160 and the first connection hole 240 and locks the back panel module 100 to the rear panel 220. It can be understood that the rear panel 220 and the back panel module 100 can be detachably connected by the locking member 300, which has a relatively simple structure and is relatively convenient for assembly and disassembly.

[0055] In this embodiment, the structure of the back panel module 100 is substantially the same as the structure of the back panel module 100 adopted in the embodiment using a Velcro connection method, with slight changes in local positions. For example, the Velcro structure of the second connecting piece 120 is replaced with a structural member made of fabrics such as lycra, cotton, and chemical fiber, and the fabric thereof is the same as or different from that of the protective member 140. The multi-layer structure of the back panel module 100 can still be maintained. At this time, the second connecting piece 120 can play a protective role on the back side 112 of the back panel 110 to prevent the user from having hard contact with the back side 112 of the back panel 110.

[0056] It is understood that the second connection hole 160 formed on the back panel module 100 needs to penetrate the multi-layer structure of the back panel module 100 . The first connection hole 240 formed on the rear panel 220 needs to penetrate the rear panel 220 .

[0057] The locking member 300 may be a combination of a bolt and a nut. The bolt passes through the second connecting hole 160 and the first connecting hole 240, and the nut is connected to the bolt on one side of the rear plate 220 that forms the accommodating space, thereby locking the back panel module 100 and the rear plate 220 relative to each other.

[0058] In this embodiment, there are multiple first connection holes 240 and second connection holes 160, and they correspond one to one. There are multiple locking members 300, and the multiple locking members 300 are arranged to correspond to the multiple second connection holes 160. It can be understood that the second connection holes 160 on the back panel module 100 correspond one to one with the multiple first connection holes 240 on the rear panel 220. After the locking members 300 are arranged to pass through the second connection holes 160, they will also pass through the corresponding first connection holes 240, thereby locking the rear panel 220 and the back panel module 100 together. Under the action of the multiple locking members 300, the rear panel 220 and the back panel module 100 can be connected at multiple positions, so that the rear panel 220 and the back panel module 100 can achieve a stable connection.

[0059] In the present application, the rear panel 220 has a top edge 221 and a bottom edge 222 opposite to the top edge 221 at the connection with the main body 210, and a plurality of first connection holes 240 are distributed near the top edge 221 and near the bottom edge 222. Specifically, there are eight first connection holes 240, four of which are distributed near the top edge 221, and the other four are distributed near the bottom edge 222. In this way, the rear panel 220 can be connected to the back panel module 100 near both the top edge 221 and the bottom edge 222, which can improve the connection strength between the rear panel 220 and the back panel module 100, thereby reducing the possibility of the rear panel 220 and the back panel module 100 being separated due to the weight inside the package 200.

[0060] In other embodiments, the number of the first connection holes 240 is not limited to eight and can be changed according to actual needs. It is only necessary to ensure that the number of the second connection holes 160 and the locking members 300 is equal to the number of the first connection holes 240.

[0061] like Figure 1 and Figure 6 As shown, in the present application, the backpack 10 includes a shoulder strap 400, which is connected to the connection between the main body 210 and the rear panel 220. By connecting the shoulder strap 400 to the bag body 200, the normal use of the shoulder strap 400 can be maintained even when the back panel module 100 is replaced. If the shoulder strap 400 is connected to the back panel module 100, the shoulder strap 400 needs to be replaced simultaneously, or the shoulder strap 400 needs to be separated from the back panel module 100, which makes the replacement of the back panel 110 more troublesome and increases the cost. By connecting the shoulder strap 400 to the connection between the main body 210 and the rear panel 220, the shoulder strap 400 can be sewn together with the main body 210 and the rear panel 220 simultaneously during the process of sewing the two together, without having to separately connect the shoulder strap 400 to the bag body 200 later, making the manufacturing process of the backpack 10 simpler and more convenient.

[0062] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A backpack, characterized in that: include: The bag body includes a main body and a rear panel, wherein the main body and the rear panel are connected to form a storage space for storing items; and The back panel module is closely attached to a side of the rear panel away from the accommodation space and is detachably connected to the rear panel.

2. The backpack according to claim 1, characterized in that The package body includes a first connecting piece, which is connected to the side of the rear plate body facing away from the accommodating space. The back panel module includes a back panel and a second connecting piece connected to the back panel. One of the first connecting piece and the second connecting piece is a Velcro fleece surface, and the other is a Velcro hook surface.

3. The backpack according to claim 2, characterized in that The rear panel has a top edge and a bottom edge opposite to the top edge at a connection point with the main body, and the first connecting piece extends from the bottom edge to the top edge.

4. The backpack according to claim 2, characterized in that The second connecting piece has the same size and shape as the back plate.

5. The backpack according to claim 2, characterized in that The backplane module has a multi-layer structure; the backplane module includes a buffer component and a protective component, and the protective component, the buffer component, the backplane, and the second connecting piece are stacked in sequence.

6. The backpack according to claim 5, characterized in that The protective member is connected to the second connecting piece to fully wrap the buffer member and the back plate; and / or the back plate has a front surface, a back surface opposite to the front surface, and a peripheral side surface connected between the front surface and the back surface, the front surface faces away from the rear plate body, and the back surface faces the rear plate body; The back plate is embedded in the buffer component, and a portion of the buffer component extends from the front surface to the back surface and completely covers the peripheral side surface.

7. The backpack according to claim 1, wherein: The rear plate is provided with a first connection hole, the back panel module is provided with a second connection hole, and the backpack includes a locking member, which passes through the second connection hole and the first connection hole and locks the back panel module to the rear plate.

8. The backpack according to claim 7, characterized in that There are multiple first connection holes and multiple second connection holes, and they correspond one to one; there are multiple locking members, and multiple locking members are passed through multiple second connection holes in a one-to-one correspondence.

9. The backpack according to claim 8, characterized in that The rear plate has a top edge and a bottom edge opposite to the top edge at the connection with the main body, and the plurality of first connection holes are distributed at positions close to the top edge and positions close to the bottom edge.

10. The backpack according to any one of claims 1 to 9, characterized in that: The backpack includes shoulder straps connected to the connection between the main body and the rear panel.