Backpack with anti-theft structure

By incorporating a locking seat and a pull rod drive spring structure on the outer wall of the backpack, combined with a magnetic block and connecting strap design, the problem of easy opening of traditional backpack zippers is solved, achieving higher security and timely reminder effects.

CN224234921UActive Publication Date: 2026-05-15GUANGZHOU RUNFENG BAG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520953571.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2026-05-15
Estimated Expiration
2035-05-14

AI Technical Summary

Technical Problem

Traditional backpacks often lack a self-locking zipper, making them easy for others to open by pulling the zipper, leading to the loss of items.

Method used

A locking seat and a pull rod are installed on the outer wall of the backpack. A drive spring drives the locking rod into the locking slot of the rotating plate. Combined with the design of a magnetic block and a connecting strap, the rotating disc reminds the user that the zipper has been pulled.

Benefits of technology

It effectively prevents the zipper from being easily opened, promptly alerts the user to any zipper operation, and improves the security of the backpack.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224234921U_ABST
    Figure CN224234921U_ABST
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Abstract

The utility model relates to the technical field of backpack, and discloses a backpack with an anti-theft structure, which comprises a knapsack, the outer wall of the knapsack is provided with straps, the outer wall of the knapsack is provided with magic tapes, the outer wall of the knapsack is provided with a zipper, the outer wall of the knapsack is fixedly provided with a locking seat, the outer wall of the knapsack is provided with a zipper, and the zipper is provided with an anti-theft structure. A rotating plate is rotationally connected to the outer wall of the zipper, and a pull rod is movably connected to an inner cavity of the locking base in a sleeved mode. According to the backpack with the anti-theft structure, the locking seat is arranged on the outer wall of the backpack and the pull rod is arranged in the inner cavity of the locking seat, and the pull rod can be driven under the action of the driving spring, so that the pull rod enters the rotating plate, and the rotating plate is fixed; therefore, the rotating plate and the zipper can be prevented from being pulled open very easily, and the situation that when the backpack is carried, other people open the backpack by directly pulling the zipper is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of backpack technology, specifically a backpack with an anti-theft structure. Background Technology

[0002] A backpack is a bag worn on the back, made of a variety of materials, including genuine leather, plastic, polyester, canvas, nylon, cotton, and linen.

[0003] When using a traditional backpack, the bag is usually closed by a zipper. However, the zipper on the back of the backpack does not have a self-locking function; it can only secure the zipper. Others can open the backpack by pulling the zipper, which can lead to the loss of items inside and cause financial loss. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a backpack with an anti-theft structure, which has the advantages of locking the zipper and high security, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a backpack with an anti-theft structure, comprising a backpack, a bag strap installed on the outer wall of the backpack, Velcro installed on the outer wall of the backpack, a zipper installed on the outer wall of the backpack, a locking seat fixedly mounted on the outer wall of the backpack, a zipper installed on the outer wall of the backpack, a rotating plate rotatably connected to the outer wall of the zipper, a pull rod movably sleeved in the inner cavity of the locking seat, a locking rod fixedly mounted on the outer wall of the pull rod, a drive spring movably sleeved on the outer wall of the pull rod, a mounting base fixedly mounted on the outer wall of the backpack, a rotating disk rotatably connected to the inner cavity of the mounting base, a rotating disc fixedly mounted on the outer wall of the rotating disk, a connecting strap fixedly mounted on the outer wall of the rotating disk, a magnet fixedly mounted on the outer wall of the connecting strap, and a locking groove formed on the outer wall of the rotating plate.

[0006] As a preferred technical solution of this utility model: the two ends of the outer wall of the drive spring are respectively connected to the outer wall of the locking rod and the inner wall of the locking seat, and the drive spring is made of high carbon steel.

[0007] As a preferred technical solution of this utility model: the outer wall of the locking rod is beveled, and the outer wall diameter of the locking rod is larger than the outer wall diameter of the pull rod.

[0008] As a preferred technical solution of this utility model: the installation position of the magnetic block corresponds to the installation position of the zipper, and the connecting strip is made of nylon fiber.

[0009] As a preferred technical solution of this utility model: the magnetic block is a powerful magnet, the mounting base is embedded in the outer wall of the backpack, and the outer wall of the rotating disk is higher than the outer wall of the backpack.

[0010] As a preferred technical solution of this utility model: the zipper is made of high carbon steel, and the outer diameter of the locking rod is equal to the inner diameter of the locking groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This backpack with an anti-theft structure uses a locking seat on the outer wall of the backpack and a pull rod inside the locking seat. Under the action of a drive spring, the pull rod can be driven to enter the rotating plate, thereby fixing the rotating plate and preventing the rotating plate and zipper from being easily opened. This prevents others from opening the backpack by directly pulling the zipper while it is being carried.

[0013] 2. This backpack with an anti-theft structure uses a mounting bracket on the outer wall of the backpack and a connecting strap on the outer wall of the mounting bracket. The connecting strap is connected to the zipper by a magnetic block. When the zipper is pulled, the connecting strap moves, causing the rotating disc to rotate. When the backpack is being carried, the outer wall of the rotating disc is usually in contact with the user's back, thus the rotating disc acts as an early warning to the user, allowing them to promptly detect that the zipper has been pulled. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the backpack structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the locking seat structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the rotating disk structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the rotating disk structure of this utility model.

[0019] In the picture: 1. Backpack; 2. Strap; 3. Velcro; 4. Zipper; 5. Locking seat; 6. Zipper; 7. Rotating plate; 8. Pull rod; 9. Locking rod; 10. Drive spring; 11. Mounting base; 12. Rotating disk; 13. Rotating disk; 14. Connecting strap; 15. Magnetic block; 16. Locking groove. 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 backpack with an anti-theft structure includes a backpack 1, a bag strap 2 installed on the outer wall of the backpack 1, Velcro 3 installed on the outer wall of the backpack 1, a zipper 4 installed on the outer wall of the backpack 1, a locking seat 5 fixedly installed on the outer wall of the backpack 1, a zipper 6 installed on the outer wall of the backpack 1, a rotating plate 7 rotatably connected to the outer wall of the zipper 6, a pull rod 8 movably sleeved in the inner cavity of the locking seat 5, a locking rod 9 fixedly installed on the outer wall of the pull rod 8, a drive spring 10 movably sleeved on the outer wall of the pull rod 8, a mounting base 11 fixedly installed on the outer wall of the backpack 1, a rotating disk 12 rotatably connected to the inner cavity of the mounting base 11, a rotating disk 13 fixedly installed on the outer wall of the rotating disk 12, a connecting strap 14 fixedly installed on the outer wall of the rotating disk 13, a magnet 15 fixedly installed on the outer wall of the connecting strap 14, and a locking groove 16 opened on the outer wall of the rotating plate 7.

[0022] In the above structure, by using the locking seat 5 set on the outer wall of the backpack 1 and the pull rod 8 installed in the inner cavity of the locking seat 5, when the outer wall of the backpack 1 is closed by the zipper 6, the outer wall of the rotating plate 7 is rotated into the inner cavity of the locking seat 5. At this time, the locking rod 9 will enter the inner cavity of the rotating plate 7 under the drive of the drive spring 10, and lock the rotating plate 7, so that the zipper 6 and the rotating plate 7 cannot move, thereby preventing the zipper 4 from being opened.

[0023] In a preferred embodiment: the two ends of the outer wall of the drive spring 10 are respectively connected to the outer wall of the locking rod 9 and the inner wall of the locking seat 5, and the drive spring 10 is made of high carbon steel;

[0024] In the above structure, the drive spring 10 provided on the outer wall of the pull rod 8 can drive the pull rod 8 and the locking rod 9 under the action of the drive spring 10, so that the locking rod 9 enters the inner cavity of the rotating plate 7 and locks the rotating plate 7. When it is necessary to pull the zipper 6 and the rotating plate 7, the pull rod 8 is pulled outward, which can compress the drive spring 10 and disengage the locking rod 9 from the inner cavity of the rotating plate 7, and then the rotating plate 7 can be rotated.

[0025] In a preferred embodiment: the outer wall of the locking rod 9 is beveled, and the diameter of the outer wall of the locking rod 9 is larger than the diameter of the outer wall of the pull rod 8;

[0026] In the above structure, by setting a locking rod 9 on the outer wall of the pull rod 8, when it is necessary to fix the rotating plate 7, the rotating plate 7 is pushed to move. Since the outer wall of the locking rod 9 is obliquely shaped, the locking rod 9 can be pushed to move, so that the locking rod 9 retracts into the inner cavity of the locking seat 5. Then, the locking rod 9 can be driven by the drive spring 10, so that the locking rod 9 enters the inner cavity of the rotating plate 7 and locks the rotating plate 7.

[0027] In a preferred embodiment: the mounting position of the magnetic block 15 corresponds to the mounting position of the zipper 6, and the connecting strap 14 is made of nylon fiber;

[0028] In the above structure, the connecting strip 14 is provided on the outer wall of the rotating disk 13, and the magnetic block 15 is provided on the outer wall of the connecting strip 14. Under the action of the magnetic block 15, the connecting strip 14 and the zipper 6 are linked. Once the zipper 6 is moved, the connecting strip 14 can be driven to rotate under the action of the magnetic block 15, thereby causing the rotating disk 13 to rotate in the inner cavity of the mounting base 11. At this time, the outer wall of the rotating disk 13 contacts the user's back, thereby prompting the user.

[0029] In a preferred embodiment: the magnetic block 15 is a powerful magnet, the mounting base 11 is embedded in the outer wall of the backpack 1, and the outer wall of the rotating disk 13 is higher than the outer wall of the backpack 1.

[0030] In the above structure, the rotating disk 13 provided on the outer wall of the connecting belt 14 will pull the connecting belt 14 as the zipper 6 moves, thereby driving the rotating disk 13 to rotate under the action of the connecting belt 14. In turn, the rotating disk 13 will serve as a prompt to the user, enabling the user to further discover that the zipper 6 has been pulled.

[0031] In a preferred embodiment: the zipper 6 is made of high carbon steel, and the outer diameter of the locking rod 9 is equal to the inner diameter of the locking groove 16;

[0032] In the above structure, the locking groove 16 opened on the outer wall of the rotating plate 7 can drive the pull rod 8 and the locking rod 9 under the action of the drive spring 10, so that the locking rod 9 enters the inner cavity of the locking groove 16. At this time, the rotating plate 7 can be fixed under the action of the locking rod 9, so that the rotating plate 7 cannot rotate on the outer wall of the zipper 6, thereby fixing the zipper 6.

[0033] Working principle: During use, when the zipper 6 is pulled to close the zipper 4, the zipper 6 moves to the end of the zipper 4. Then, the rotating plate 7 is rotated, causing its outer wall to drive the bottom of the locking rod 9. This causes the locking rod 9 to retract into the inner cavity of the locking seat 5 under the action of the rotating plate 7. After the rotating plate 7 enters the inner cavity of the locking seat 5, the locking rod 9, under the action of the drive spring 10, enters the inner cavity of the rotating plate 7, thus fixing the rotating plate 7. Then, the connecting strap 14 is pulled, causing it to move closer to the outer wall of the zipper 6 and press the outer wall of the magnet 15 against the outer wall of the zipper 6, thus fixing the rotating plate 7. The Velcro 3 is attached to the outer wall of the backpack 1 to cover the zipper 4. If someone wants to open the zipper 4 while carrying the backpack 1, they need to first open the Velcro 3 and pull the rotating plate 7 out of the inner cavity of the locking seat 5. Under the action of the lever 8 and the locking lever 9, the unlocking of the rotating plate 7 is not very easy. When the lever 8 is pulled, it will be noticed. Even if the rotating plate 7 is unlocked and the user does not notice, when the zipper 6 is pulled, the connecting belt 14 and the magnetic block 15 will move. Under the action of the moving connecting belt 14, the rotating disk 13 will rotate. At this time, the rotating disk 13 will give the user a timely reminder, thereby preventing others from opening the zipper 4.

[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 backpack with an anti-theft structure, comprising a backpack (1), characterized in that: The backpack (1) has a strap (2) installed on its outer wall, Velcro (3) installed on its outer wall, a zipper (4) installed on its outer wall, a locking seat (5) fixedly mounted on its outer wall, a zipper (6) installed on its outer wall, a rotating plate (7) rotatably connected to the outer wall of the zipper (6), a pull rod (8) movably sleeved in the inner cavity of the locking seat (5), and a locking rod (9) fixedly mounted on the outer wall of the pull rod (8). A drive spring (10) is movably sleeved on the outer wall of the pull rod (8). A mounting base (11) is fixedly mounted on the outer wall of the backpack (1). A rotating disk (12) is rotatably connected to the inner cavity of the mounting base (11). A rotating disk (13) is fixedly mounted on the outer wall of the rotating disk (12). A connecting belt (14) is fixedly mounted on the outer wall of the rotating disk (13). A magnet (15) is fixedly mounted on the outer wall of the connecting belt (14). A locking groove (16) is opened on the outer wall of the rotating plate (7).

2. A backpack with an anti-theft structure according to claim 1, characterized in that: The two ends of the outer wall of the drive spring (10) are connected to the outer wall of the locking rod (9) and the inner wall of the locking seat (5), respectively, and the drive spring (10) is made of high carbon steel.

3. A backpack with an anti-theft structure according to claim 1, characterized in that: The outer wall of the locking rod (9) is obliquely cut, and the outer wall diameter of the locking rod (9) is larger than the outer wall diameter of the pull rod (8).

4. A backpack with an anti-theft structure according to claim 1, characterized in that: The installation position of the magnetic block (15) corresponds to the installation position of the zipper (6), and the connecting strip (14) is made of nylon fiber.

5. A backpack with an anti-theft structure according to claim 1, characterized in that: The magnetic block (15) is a powerful magnet, the mounting base (11) is embedded in the outer wall of the backpack (1), and the outer wall of the rotating disk (13) is higher than the outer wall of the backpack (1).

6. A backpack with an anti-theft structure according to claim 1, characterized in that: The zipper (6) is made of high carbon steel, and the outer diameter of the locking rod (9) is equal to the inner diameter of the locking groove (16).