Quick-release anti-theft buckle for bicycle bag

By designing a quick-release anti-theft buckle, and using technologies such as a T-shaped structure and magnetic grooves, the problem of inconvenient assembly and disassembly of bicycle bags and the issue of hooking have been solved, enabling quick installation, disassembly, and stable fixation, thus improving the applicability and convenience of bicycle bags.

CN122166247APending Publication Date: 2026-06-09SHANGHAI ZHENGXING BICYCLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI ZHENGXING BICYCLE CO LTD
Filing Date
2026-05-07
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The buckles on existing bicycle bags are inconvenient to install and remove, and they are prone to snagging other items after being removed, which reduces the applicability and convenience of the bags.

Method used

A quick-release anti-theft buckle was designed, comprising a main body of the bag, a fixing plate, and a hook body. The fixing plate and hanging plate have a T-shaped structure, combined with a rotary combination lock, a magnetic slot, and a hook adjustment slot, to achieve quick installation and removal. Stability is enhanced by a strap fixing seat and a silicone strap.

Benefits of technology

It enables quick installation and removal of bicycle bags, prevents them from snagging on other items, improves the applicability and ease of use of bicycle bags, and is compatible with bicycle racks of different sizes, enhancing their stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a quick-detachable anti-theft buckle for a bicycle bag, and relates to the technical field of bicycle buckles. The quick-detachable anti-theft buckle for the bicycle bag comprises a bicycle bag body, a fixing plate and a hook body, the side of the bicycle bag body close to the fixing plate is fixedly connected with a hanging plate, the fixing plate and the hanging plate are both T-shaped structures, the bottom of the side of the fixing plate close to the bicycle bag body is fixedly connected with an L-shaped lower clamping block, and the bottom of the hanging plate is provided with a lower clamping groove which is matched with the lower clamping block. The fixing plate and the hanging plate are provided with a separable structure, after the fixing plate is fixed with the bicycle rack through a hook and a silica gel bandage, the bicycle bag body can be quickly clamped and fixed with the clamping block of the fixing plate through the clamping groove on the hanging plate, and is locked through a rotary knob combination lock, so that the bicycle bag body cannot be quickly separated after being locked, and the anti-theft effect is achieved.
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Description

Technical Field

[0001] This invention relates to the field of bicycle buckle technology, specifically a quick-release anti-theft buckle for bicycle bags. Background Technology

[0002] A bicycle bag is an external storage device that hangs on the back of a bicycle. It is generally used in scenarios where bicycles need to carry more cargo, such as long-distance travel or grocery shopping. Bicycle bags are mainly hung on metal bars of racks using buckles on the bag.

[0003] Existing fasteners are generally fixed directly to the bike bag. When in use, they are directly secured to the bike seat via the fasteners. This is not only cumbersome to install and remove, but also prevents the bag from being used as a regular handbag. It is generally only suitable for scenarios where the bag is hung for extended periods. Furthermore, because of the fasteners, even when the bag is removed for use, the hooks can easily snag on other items, affecting its use in other scenarios and reducing the bag's applicability. There is room for further improvement. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a quick-release anti-theft buckle for bicycle bags, solving the problems described in the background section.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a quick-release anti-theft buckle for bicycle bags, comprising a bag body, a fixing plate, and a hook body. A hanging plate is fixedly connected to the side of the bag body near the fixing plate. Both the fixing plate and the hanging plate are T-shaped structures. An L-shaped lower locking block is fixedly connected to the bottom of the fixing plate near the bag body. A lower locking groove adapted to the lower locking block is provided at the bottom of the hanging plate. Shoulder locking blocks are fixedly connected to both sides of the upper part of the fixing plate. Shoulder locking grooves are provided at the positions corresponding to the shoulder locking blocks on both sides of the upper part of the hanging plate. A rotary combination lock is fixedly connected to the upper center of the fixing plate. A locking tongue groove is provided at the position corresponding to the locking tongue of the rotary combination lock on the upper part of the hanging plate. The fixing plate has an inverted triangular positioning groove on the side closer to the main body of the bag. The fixing plate has a second magnet groove at the bottom of the inverted triangular positioning groove on the side away from the main body of the bag. The hanging plate has a first magnet groove at the position corresponding to the second magnet groove on the bottom. The fixing plate has horizontally opened hook adjustment grooves below the two shoulder blocks. Two hook adjustment bolts are installed through the two hook adjustment grooves. The two ends of the fixing plate away from the hanging plate are fixedly connected to the hook body through the two hook adjustment bolts. The middle of the two hook bodies has a fastening slide groove. The fastening block is slidably connected in the two fastening slide grooves. The fastening bolt is rotatably installed through the middle of the fastening slide grooves of the two hook bodies. The upper inner edge of the two hook bodies is fixedly connected to the hook sleeve. A strap fixing seat is fixedly connected to the lower side of the fixing plate away from the hanging plate. A through groove is opened on the side of the strap fixing seat near the fixing plate. Strap fixing slots and wrapping slots are respectively opened at both ends of the side of the strap fixing seat away from the fixing plate. A wrapping post is provided on the outer edge of the wrapping slot. A strap locking tenon is fixedly connected to the middle of the wrapping post on the side away from the strap fixing seat. A silicone strap is fixedly connected to the strap fixing seat through the strap fixing slot. Two strap loops are movably sleeved on the silicone strap.

[0006] Preferably, both the first magnet slot and the second magnet slot are provided with strong magnets with opposite magnetic poles.

[0007] Preferably, the first magnet groove is a cylindrical boss structure on the mounting plate, and the height of the protrusion on the side near the fixing plate is adapted to the depth of the inverted triangular positioning groove. The bottom inner edge structure of the inverted triangular positioning groove cooperates with the protruding outer edge structure of the first magnet groove.

[0008] Preferably, both fastening bolts pass through corresponding fastening blocks and are threadedly connected to the fastening blocks.

[0009] Preferably, a handle is fixedly connected to the top of the hanging plate.

[0010] Preferably, the silicone strap has multiple equidistant locking holes in the middle, and the end of the strap locking hole is provided with a barb on the side near the fixing plate.

[0011] Preferably, a bolt fixing seat is provided on the upper part of the hook sleeve, and a slot and a threaded hole are provided on the upper part of the hook body at a position corresponding to the bolt fixing seat. The inner side of the hook sleeve is arc-shaped.

[0012] Preferably, the inner side of the hook sleeve is square.

[0013] (III) Beneficial Effects This invention provides a quick-release anti-theft buckle for bicycle bags. It has the following advantages: 1. This invention features a detachable fixing plate and a hanging plate structure. After the fixing plate is secured to the bicycle rack via hooks and silicone straps, the main body of the bicycle bag can be quickly engaged and secured with the locking blocks of the fixing plate via the slots on the hanging plate, and locked by a combination lock. Once locked, it cannot be quickly separated, thus preventing theft. When it needs to be removed, simply unlock the combination lock and lift the bag upwards to remove it. Disassembly and assembly are very convenient. After removal, the main body of the bicycle bag has no protruding hook structure and can be used directly as a regular handbag, without the problem of hooking other items, greatly expanding the applicability of the bicycle bag.

[0014] 2. The present invention uses strong magnets with opposite magnetic poles in the first and second magnet slots to achieve pre-adsorption and positioning when the hanging plate is close to the fixing plate. Combined with the guiding and positioning effect of the inverted triangular positioning slot on the first magnet slot, it can facilitate users to quickly align and install, further improving the quick-release experience.

[0015] 3. The hook body of the present invention can adjust the distance between the two hook bodies through the hook adjustment groove, thereby adapting to bicycle racks of different specifications. At the same time, the fastening block can be used with the fastening bolt to adjust the fastening position, which can adapt to the seat rack rods of different diameters, further improving the adaptability of the device.

[0016] 4. This invention uses a combination of a strap fixing seat and a silicone strap. The silicone strap can pass through the rear seat rack rod, then through the strap groove and around the strap post. The strap clip passes through the clip hole to further wrap and secure the rack rod. At the same time, after hooking, the bag can also be further secured, which can greatly improve the stability of the bag and prevent the bag from shaking during riding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall installation of the present invention; Figure 2 This is a schematic diagram of the front structure of the vehicle-free packaging of the present invention; Figure 3 This is a schematic diagram of the back structure of the car-free bag of the present invention; Figure 4 This is a schematic diagram of the front structure of the non-hanging plate of the present invention; Figure 5 This is a three-dimensional schematic diagram of the back of the mounting plate of the present invention; Figure 6 This is a top cross-sectional view of the strap fixing base of the present invention; Figure 7 This is a schematic diagram of the hook sleeve according to Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the hook sleeve according to Embodiment 2 of the present invention.

[0018] Reference numerals: 1. Main body of the bag; 2. Fixing plate; 3. Hanging plate; 4. Hook adjustment groove; 5. Lower locking block; 6. Lower locking groove; 7. Shoulder locking block; 8. Shoulder locking groove; 9. Knob combination lock; 10. Lock tongue groove; 11. Hook main body; 12. Hook adjusting bolt; 13. Fastening slide; 14. Fastening block; 15. Fastening bolt; 16. Hook sleeve; 17. Strap fixing seat; 18. Silicone strap; 19. Through groove; 20. Strap fixing groove; 21. Strap winding groove; 22. Strap winding post; 23. Strap locking tenon; 24. Strap binding ring; 25. First magnet groove; 26. Second magnet groove; 27. Handle; 28. Inverted triangle positioning groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: like Figure 1-7 As shown, this embodiment of the invention provides a quick-release anti-theft buckle for bicycle bags, including a bag body 1, a fixing plate 2, and a hook body 11. A hanging plate 3 is fixedly connected to the side of the bag body 1 near the fixing plate 2, and a handle 27 is fixedly connected to the top of the hanging plate 3. Both the fixing plate 2 and the hanging plate 3 are T-shaped structures. An L-shaped lower locking block 5 is fixedly connected to the bottom of the fixing plate 2 near the bag body 1. A lower locking groove 6 corresponding to the lower locking block 5 is opened at the bottom of the hanging plate 3. Shoulder locking blocks are fixedly connected to both sides of the top of the fixing plate 2. 7. Shoulder slots 8 are provided on both sides of the upper part of the hanging plate 3, corresponding to the shoulder clips 7. A rotary combination lock 9 is fixedly connected to the upper center of the fixing plate 2. A latch slot 10 is provided on the upper part of the hanging plate 3, corresponding to the latch of the rotary combination lock 9. After locking, the rotary combination lock can prevent unauthorized personnel from quickly disassembling and separating the bicycle bag from the fixing plate 2. When it is necessary to temporarily park the bicycle, there is no need to take off the entire bicycle bag to carry it. Only the main body of the bicycle bag 1 can be kept and the combination lock can ensure security, further improving the convenience of use. The fixing plate 2 has an inverted triangular positioning groove 28 on the side near the main body 1 of the bag. The fixing plate 2 away from the main body 1 has a second magnet groove 26 at the bottom of the inverted triangular positioning groove 28. The hanging plate 3 has a first magnet groove 25 at the position corresponding to the second magnet groove 26. The first magnet groove 25 is a cylindrical boss structure on the hanging plate 3, and the height of the protrusion on the side near the fixing plate 2 is adapted to the depth of the inverted triangular positioning groove 28. The inner edge structure of the bottom end of the inverted triangular positioning groove 28 matches the outer edge structure of the protrusion of the first magnet groove 25. Both the first magnet groove 25 and the second magnet groove 26 are equipped with strong magnets with opposite magnetic poles. During installation, the hanging plate 3 can be automatically attracted by the magnetic force to complete the pre-positioning. With the gradually tightening inclined guide effect of the inverted triangular positioning groove 28, it can help the user quickly complete the alignment and engagement without repeated alignment and adjustment, further improving the efficiency of quick-release installation. The fixing plate 2 has horizontally opened hook adjustment grooves 4 below the two shoulder clips 7. Two hook adjustment bolts 12 are installed through the two hook adjustment grooves 4. The two ends of the fixing plate 2 away from the hanging plate 3 are respectively fixedly connected to the hook body 11 by the two hook adjustment bolts 12. The middle of the two hook bodies 11 is opened with a fastening slide groove 13. The fastening clips 14 are slidably connected in the two fastening slide grooves 13. The two hook bodies 11 are rotatably installed with fastening bolts 15 in the middle of the fastening slide grooves 13. The two fastening bolts 15 pass through the corresponding fastening clips 14 and are threaded to the fastening clips 14. By rotating the fastening bolts 15, the fastening clips 14 can be slid along the fastening slide grooves 13, thereby adjusting the clamping distance between the fastening clips 14 and the hook sleeves 16. It can be used with different diameter shelf crossbars to complete the clamping and fixing, making it more applicable. Hook sleeves 16 are fixedly connected to the upper inner edge of both hook bodies 11. A bolt fixing seat is provided on the upper part of the hook sleeve 16. A slot and a threaded hole are provided on the upper part of the hook body 11 at the position corresponding to the bolt fixing seat. The inner side of the hook sleeve 16 is arc-shaped, which is suitable for bicycle rack poles with circular cross-sections, and can fit more tightly with the pole body to improve the stability of the fixation. A strap fixing seat 17 is fixedly connected to the lower side of the fixing plate 2 away from the hanging plate 3. A through groove 19 is opened on the side of the strap fixing seat 17 near the fixing plate 2. Strap fixing slots 20 and wrapping grooves 21 are opened at both ends of the side of the strap fixing seat 17 away from the fixing plate 2, respectively. A wrapping post 22 is provided on the outer edge of the wrapping groove 21. A strap buckle 23 is fixedly connected to the middle of the wrapping post 22 away from the strap fixing seat 17. Multiple buckle holes are opened at equal intervals in the middle of the silicone strap 18. A barb is provided at the end of the strap buckle 23. The strap fixing seat 17 is fixedly connected to the silicone strap 18 through the strap fixing slot 20. Two strap loops 24 are movably sleeved on the silicone strap 18. After the strap is tightened, the strap loops 24 can tighten and fix the excess silicone strap 18 end to prevent the strap end from shaking and loosening during riding.

[0021] Example 2: like Figure 8 As shown, this embodiment is based on embodiment one: when the seat structure is a square tube structure, the inner edge of the hook sleeve 16 can be provided with a square slot, which can be applied to bicycles with a square tube seat structure, thus improving the scope of use of the equipment.

[0022] Working principle: In operation, the fixing plate 2 is first hung on the crossbar of the bicycle rear rack via the hook body 11. The distance between the two hook bodies 11 is adjusted according to the crossbar. Then, the two fastening bolts 15 are rotated to push the two fastening blocks 14 to slide inward, clamping and fixing the crossbar. Next, the silicone strap 18 is passed through the crossbar and then through the wrapping groove 21. The silicone strap 18 is wrapped around the wrapping post 22. The appropriate locking hole is selected, and the strap locking hole 23 is inserted into the locking hole to achieve a locking and fixing, completing the fixing installation of the fixing plate on the bicycle; bicycle bag installation. When installing the main body 1, align the first magnet groove 25 at the bottom of the hanging plate 3 with the inverted triangular positioning groove 28 and insert it. Under the limiting of the inverted triangular positioning groove 28 and the magnetic attraction of the strong magnet, the hanging plate 3 will be quickly attracted and positioned. At this time, the lower locking block 5 will be inserted into the lower locking groove 6, and the two shoulder locking blocks 7 will also be inserted into the corresponding shoulder locking grooves 8. Finally, turn the knob combination lock 9 and insert the locking tongue into the locking tongue groove 10 to complete the locking, thus realizing the quick installation and fixation of the main body 1 of the bag. When it needs to be removed, simply unlock the knob combination lock 9 and lift the handle 27 upwards to remove the main body 1 of the bag, which is very convenient to use.

[0023] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-release anti-theft buckle for bicycle bags, comprising a bag body (1), a fixing plate (2), and a hook body (11), characterized in that: The main body (1) of the bag is fixedly connected to a hanging plate (3) on the side near the fixing plate (2). Both the fixing plate (2) and the hanging plate (3) are T-shaped structures. The bottom of the fixing plate (2) near the main body (1) of the bag is fixedly connected to an L-shaped lower locking block (5). The bottom of the hanging plate (3) is provided with a lower locking groove (6) that is adapted to the lower locking block (5). The upper sides of the fixing plate (2) are fixedly connected to shoulder locking blocks (7). The upper sides of the hanging plate (3) are provided with shoulder locking grooves (8) at positions corresponding to the shoulder locking blocks (7). The upper middle part of the fixing plate (2) is fixedly connected to a rotary combination lock (9). The upper part of the hanging plate (3) is provided with a locking tongue groove (10) at a position corresponding to the locking tongue of the rotary combination lock (9). The fixing plate (2) has an inverted triangular positioning groove (28) on the side closer to the main body of the bag (1). The fixing plate (2) has a second magnet groove (26) at the bottom of the inverted triangular positioning groove (28) on the side away from the main body of the bag (1). The hanging plate (3) has a first magnet groove (25) at the position corresponding to the second magnet groove (26) below. The fixing plate (2) has a hook adjustment groove (4) horizontally below the two shoulder blocks (7). Two hook adjustment bolts (12) are installed through the two hook adjustment grooves (4). The two ends of the fixing plate (2) away from the hanging plate (3) are fixedly connected to the hook body (11) by the two hook adjustment bolts (12). The middle of the two hook bodies (11) is provided with a fastening groove (13). Fastening blocks (14) are slidably connected in the two fastening grooves (13). Fastening bolts (15) are installed through the middle of the two hook bodies (11). Hook sleeves (16) are fixedly connected to the upper inner edge of the two hook bodies (11). A strap fixing seat (17) is fixedly connected to the side of the fixing plate (2) away from the hanging plate (3). A through groove (19) is provided on the side of the strap fixing seat (17) close to the fixing plate (2). Strap fixing slots (20) and wrapping grooves (21) are respectively provided at both ends of the side of the strap fixing seat (17) away from the fixing plate (2). A wrapping post (22) is provided on the outer edge of the wrapping groove (21). A strap buckle (23) is fixedly connected to the middle of the wrapping post (22) away from the strap fixing seat (17). A silicone strap (18) is fixedly connected to the strap fixing seat (17) through the strap fixing slot (20). Two strap loops (24) are movably sleeved on the silicone strap (18).

2. The quick-release anti-theft buckle for bicycle bags according to claim 1, characterized in that: Both the first magnet slot (25) and the second magnet slot (26) are equipped with strong magnets with opposite magnetic poles.

3. The quick-release anti-theft buckle for bicycle bags according to claim 1, characterized in that: The first magnet groove (25) is a cylindrical boss structure on the mounting plate (3), and the height of the protrusion on the side near the fixing plate (2) is adapted to the depth of the inverted triangular positioning groove (28). The bottom inner edge structure of the inverted triangular positioning groove (28) matches the protruding outer edge structure of the first magnet groove (25).

4. The quick-release anti-theft buckle for bicycle bags according to claim 1, characterized in that: Both of the fastening bolts (15) pass through the corresponding fastening blocks (14) and are threadedly connected to the fastening blocks (14).

5. The quick-release anti-theft buckle for bicycle bags according to claim 1, characterized in that: A handle (27) is fixedly connected to the top of the mounting plate (3).

6. The quick-release anti-theft buckle for bicycle bags according to claim 1, characterized in that: The silicone strap (18) has multiple mortise holes at equal intervals in the middle, and the ends of the strap mortise (23) are provided with barbs.

7. A quick-release anti-theft buckle for bicycle bags according to claim 1, characterized in that: The hook sleeve (16) is provided with a bolt fixing seat on its upper side. The hook body (11) is provided with a slot and a threaded hole at the position corresponding to the bolt fixing seat on its upper side. The inner side of the hook sleeve (16) is arc-shaped.

8. A quick-release anti-theft buckle for bicycle bags according to claim 7, characterized in that: The inside of the hook sleeve (16) is square.