Detachable pull rod backpack
By introducing an electric telescopic rod and omnidirectional wheels into a detachable trolley backpack, combined with extension components and folding panels, the problems of insufficient capacity and complex disassembly are solved, achieving convenient disassembly and multi-functional use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU RUNFENG BAG TECHNOLOGY CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-15
AI Technical Summary
Existing detachable trolley backpacks have limited capacity and complicated disassembly methods, resulting in inconvenience and increased burden when carried.
A detachable trolley backpack was designed, featuring an electric telescopic rod and omnidirectional wheels. The backpack's expandable capacity and two usage modes are achieved through control buttons. Combining the functions of a backpack and a trolley case, it uses extension components and folding panels to increase space, and the shoulder straps and hooks enable multi-functional switching.
This backpack features easy disassembly and capacity expansion, offering two usage options, reducing shoulder strain, and improving ease of use and practicality.
Smart Images

Figure CN224234923U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of backpack technology, specifically a detachable trolley backpack. Background Technology
[0002] A detachable rolling backpack is a flexible and versatile backpack that combines the functions of a backpack and a rolling suitcase.
[0003] Existing detachable rolling backpacks have limited capacity, requiring the carrying of multiple bags, which is not only inconvenient but also increases the burden. In addition, although existing detachable rolling backpacks have a detachable function, the disassembly method is complicated and can easily waste a lot of time during the disassembly process. Therefore, improvements are needed. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a detachable trolley backpack, which has the advantages of easy disassembly and expandable backpack capacity, thus solving the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a detachable trolley backpack, including a backpack body, a control button fixedly mounted on one outer wall of the backpack body, a storage bag fixedly mounted on the other outer wall of the backpack body, a handle area fixedly mounted on the top of the backpack body, hooks fixedly mounted on both outer walls of the backpack body, one end of an extension component connected to the outer wall of the backpack body via a zipper, and the other end of the extension component connected to a mounting plate via a zipper, a shoulder strap fixedly mounted on the outer wall of the mounting plate, a groove provided at the bottom of the backpack body, an electric telescopic rod fixedly mounted on the inner wall of the groove, and a universal wheel fixedly mounted on the telescopic end of the electric telescopic rod.
[0006] As a preferred technical solution of this utility model: the number of electric telescopic rods and universal wheels is four, and the four electric telescopic rods and universal wheels are evenly distributed on the inner wall of the groove. The electric telescopic rods are electrically connected to the control button, and under normal conditions, the bottom of the universal wheels will not extend beyond the bottom of the backpack body.
[0007] As a preferred technical solution of this utility model: the storage bag is magnetically attached to the outer wall of the backpack body, and the width of the storage bag is adapted to the width of the backpack body, and the backpack body is made of polyester fiber.
[0008] As a preferred technical solution of this utility model: the extension component includes a connecting plate, one end of a folding plate is rotatably connected to the outer wall of the connecting plate, and the other end of the folding plate is rotatably connected to a folding plate. A base plate is rotatably connected between the folding plate and the folding plate. A top cover is provided on the top of the connecting plate. A storage box is fixedly installed on the outer wall of the folding plate away from the folding plate through a partition. The inner wall of the storage box is provided with a pull rod body.
[0009] As a preferred technical solution of this utility model: there are two folding plates, and the two folding plates are symmetrically distributed at both ends of the connecting plate. The bottom of the base plate is rotatably sleeved on the outer wall near the side of the folding plate.
[0010] As a preferred embodiment of this invention, there are two hooks, symmetrically distributed on the outer wall of the backpack body, and the control button is located below the outer wall of the backpack body on the other side of the storage bag. Compared with the prior art, this invention has the following advantages:
[0011] 1. This detachable trolley backpack allows users to choose between carrying or pulling the device depending on the situation. When carrying, the expansion component can be removed via zipper one, allowing the mounting plate to directly engage with the zipper and connect directly to the outer wall of the backpack body, enabling the device to be carried. When pulling, pressing the control button causes the electric telescopic rod to move the universal wheels downwards to contact the ground, allowing the device to be pushed. This allows the device to have both expandable backpack capacity and two usage modes.
[0012] 2. This detachable trolley backpack, by rotating folding plates one and two, allows the bottom plate to rotate to the bottom of folding plates one and two, enabling the bottom plate to support folding plates one and two. This increases the capacity of the device, ensuring its practicality and functionality. The spacious backpack can accommodate all items, providing ample space and eliminating the need to search for extra packaging or containers, making travel easy. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a schematic diagram of the other side of the structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the bottom structure of this utility model;
[0016] Figure 4 This is a schematic cross-sectional view of the present invention.
[0017] Figure 5 This is a schematic diagram of the structure of the extended component of this utility model.
[0018] In the picture: 1. Backpack body; 2. Control buttons; 3. Handle area; 4. Hook; 5. Zipper 1; 6. Extension components; 7. Storage bag; 8. Zipper 2; 9. Mounting plate; 10. Shoulder straps; 11. Groove; 12. Electric telescopic rod; 13. Casters;
[0019] 601. Connecting plate; 602. Folding plate one; 603. Folding plate two; 604. Base plate; 605. Top cover; 606. Storage box; 607. Pull rod body. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1 - Figure 5 A detachable trolley backpack includes a backpack body 1. A control button 2 is fixedly mounted on one outer wall of the backpack body 1. A storage bag 7 is fixedly mounted on the other outer wall of the backpack body 1. A handle area 3 is fixedly mounted on the top of the backpack body 1. Hooks 4 are fixedly mounted on both outer walls of the backpack body 1. One end of an extension component 6 is engaged with the outer wall of the backpack body 1 through a zipper 5. The other end of the extension component 6 is engaged with a mounting plate 9 through a zipper 8. A shoulder strap 10 is fixedly mounted on the outer wall of the mounting plate 9. A groove 11 is opened at the bottom of the backpack body 1. An electric telescopic rod 12 is fixedly mounted on the inner wall of the groove 11. A universal wheel 13 is fixedly mounted on the telescopic end of the electric telescopic rod 12.
[0022] In the above structure, the carrying area 3 and the pull rod body 607 are provided, and the hanging strap can be attached to the outer wall of the hook 4. This allows the device to switch between backpack and trolley case functions, allowing for different usage modes to be switched according to the scenario, thus meeting different needs. As a result, the device can be multifunctional and practical, making it an ideal choice for multiple scenarios.
[0023] In a preferred embodiment: there are four electric telescopic rods 12 and four universal wheels 13, and the four electric telescopic rods 12 and universal wheels 13 are evenly distributed on the inner wall of the groove 11. The electric telescopic rods 12 are electrically connected to the control button 2, and the bottom of the universal wheels 13 does not extend beyond the bottom of the backpack body 1 under normal conditions.
[0024] In the above structure, when the user presses the control button 2, the electric telescopic rod 12 can receive a signal and start, so that the electric telescopic rod 12 can drive the universal wheel 13 to move downward through its telescopic end, so that the universal wheel 13 can extend downward from the inner wall of the groove 11 and the bottom of the universal wheel 13 can contact the ground, so that the device can be pushed, which can effectively relieve the weight of the backpack and reduce the burden on the shoulders.
[0025] In a preferred embodiment: the storage bag 7 is magnetically attached to the outer wall of the backpack body 1, and the width of the storage bag 7 is adapted to the width of the backpack body 1, which is made of polyester fiber.
[0026] In the above structure, the magnetic opening allows for quick one-handed retrieval of items, making it ideal for temporary storage or retrieval of documents in security checks or gate passage scenarios. The quick retrieval speed improves the ease of use of the device. Furthermore, due to the characteristics of the backpack body 1 being made of polyester fiber, it is known to have the advantages of being wear-resistant, dirt-resistant, and splash-proof, which prevents ordinary splashes or raindrops from penetrating the bag.
[0027] In a preferred embodiment: the extension component 6 includes a connecting plate 601, one end of a folding plate 602 is rotatably connected to the outer wall of the connecting plate 601, and the other end of the folding plate 602 is rotatably connected to a folding plate 603. A base plate 604 is rotatably connected between the folding plate 602 and the folding plate 603. A top cover 605 is provided on the top of the connecting plate 601. A storage box 606 is fixedly installed on the outer wall of the folding plate 603 away from the folding plate 602 by a partition. A pull rod body 607 is provided on the inner wall of the storage box 606.
[0028] In a preferred embodiment: there are two folding plates 602 and two folding plates 603, and the two folding plates 602 and two folding plates 603 are symmetrically distributed at both ends of the connecting plate 601, and the bottom of the base plate 604 is rotatably sleeved on the outer wall near the side of the folding plate 603.
[0029] In the above structure, by rotating the first folding plate 602 and the second folding plate 603, and allowing the base plate 604 to rotate to the bottom of the first folding plate 602 and the second folding plate 603, the base plate 604 can support the first folding plate 602 and the second folding plate 603, thereby increasing the capacity of the device and ensuring its practicality and functionality.
[0030] In a preferred embodiment: there are two hooks 4, and the two hooks 4 are symmetrically distributed on the outer wall of the backpack body 1, and the control button 2 is located below the outer wall of the backpack body 1 on the other side of the storage bag 7.
[0031] In the above structure, by controlling the position of the control button 2, the device can be easily pressed when it is being carried on the back, so that the electric telescopic rod 12 can start working, which can effectively improve the convenience of the device.
[0032] Working principle: When using this device, you can choose to carry it on your back or pull it depending on the actual situation. When carrying it on your back, you can remove the extension component 6 through the zipper 5 so that the mounting plate 9 can directly engage with the zipper 5 and connect the mounting plate 9 directly to the outer wall of the backpack body 1, so that the device can be carried on your back.
[0033] When the pull-out mode is selected, the first folding plate 602 and the second folding plate 603 can be rotated, allowing the base plate 604 to rotate to the bottom of the first folding plate 602 and the second folding plate 603. This enables the base plate 604 to support the first folding plate 602 and the second folding plate 603, thus increasing the device's capacity. The pull rod body 607 can be pulled upwards from the inner wall of the storage box 606, and the control button 2 can be pressed. This causes the electric telescopic rod 12 to receive a signal and start, allowing the electric telescopic rod 12 to drive the universal wheel 13 downwards through its telescopic end. The universal wheel 13 can then extend downwards from the inner wall of the groove 11, and its bottom can contact the ground, allowing the device to be pushed. This effectively reduces the weight of the backpack and alleviates the burden on the shoulders. The device can have both expandable backpack capacity and two usage modes.
[0034] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A detachable trolley backpack, comprising a backpack body (1), characterized in that: A control button (2) is fixedly mounted on one side of the outer wall of the backpack body (1), a storage bag (7) is fixedly mounted on the other side of the outer wall of the backpack body (1), a handle area (3) is fixedly mounted on the top of the backpack body (1), hooks (4) are fixedly mounted on both sides of the outer wall of the backpack body (1), one end of an extension component (6) is engaged with the outer wall of the backpack body (1) through a zipper (5), and the other end of the extension component (6) is engaged with a mounting plate (9) through a zipper (8). A shoulder strap (10) is fixedly mounted on the outer wall of the mounting plate (9), a groove (11) is provided at the bottom of the backpack body (1), an electric telescopic rod (12) is fixedly mounted on the inner wall of the groove (11), and a universal wheel (13) is fixedly mounted on the telescopic end of the electric telescopic rod (12).
2. The detachable trolley backpack according to claim 1, characterized in that: The number of electric telescopic rods (12) and universal wheels (13) is four, and the four electric telescopic rods (12) and universal wheels (13) are evenly distributed on the inner wall of the groove (11). The electric telescopic rods (12) are electrically connected to the control button (2), and the bottom of the universal wheels (13) of the electric telescopic rods (12) will not exceed the bottom of the backpack body (1) under normal conditions.
3. A detachable trolley backpack according to claim 1, characterized in that: The storage bag (7) is magnetically attached to the outer wall of the backpack body (1), and the width of the storage bag (7) is adapted to the width of the backpack body (1). The backpack body (1) is made of polyester fiber.
4. A detachable trolley backpack according to claim 1, characterized in that: The extension component (6) includes a connecting plate (601), one end of a folding plate (602) is rotatably connected to the outer wall of the connecting plate (601), and the other end of the folding plate (602) is rotatably connected to a folding plate (603). A base plate (604) is rotatably connected between the folding plate (602) and the folding plate (603). A top cover (605) is provided on the top of the connecting plate (601). A storage box (606) is fixedly installed on the outer wall of the folding plate (603) away from the folding plate (602) by a partition. A pull rod body (607) is provided on the inner wall of the storage box (606).
5. A detachable trolley backpack according to claim 4, characterized in that: There are two folding plates (602) and two folding plates (603), and the two folding plates (602) and two folding plates (603) are symmetrically distributed at both ends of the connecting plate (601). The bottom of the base plate (604) is rotatably sleeved on the outer wall near the side of the folding plate (603).
6. A detachable trolley backpack according to claim 1, characterized in that: There are two hooks (4), and the two hooks (4) are symmetrically distributed on the outer wall of the backpack body (1). The control button (2) is located below the outer wall of the backpack body (1) on the other side of the storage bag (7).