Quick release device for fuel tank bag

Abstract

The utility model relates to motorcycle accessory technical field provides a kind of oil tank bag quick release device, including base assembly and quick release assembly, base assembly includes oil tank holder and oil tank holder buckle, quick release assembly includes main body shell, two main body sliders and two main body slider springs, oil tank holder is connected with oil tank holder buckle, first buckle is equipped on oil tank holder buckle, first buckle is equipped with card slot, first through slot is equipped on main body shell, first buckle is matched with first through slot, second buckle is equipped on main body slider, second buckle is matched with card slot, main body slider spring is arranged on main body slider, so that two main body sliders are movably symmetrically arranged in main body shell, the quick installation and disassembly of oil tank bag are realized.The utility model can realize the quick disassembly of oil tank bag relative to motorcycle oil tank, flexible position adjustment and reliable anti-theft locking.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle parts technology, and in particular to a quick-release device for a fuel tank bag. Background Technology

[0002] With the increasing popularity of motorcycle touring and daily commuting, fuel tank bags have become widely used due to their convenient storage capabilities. To improve assembly and disassembly efficiency, quick-release fuel tank bags have emerged, allowing riders to quickly access and store the bag without tools, greatly enhancing ease of use.

[0003] However, current quick-release technologies mostly focus on basic snap-fit ​​connections, which have obvious drawbacks: First, their installation position is usually fixed and cannot be fine-tuned according to the rider's body type or driving habits, affecting the user experience and safety; second, traditional quick-release structures lack effective anti-theft measures, and the fuel tank bag is easily stolen when the vehicle is parked, and its function is limited.

[0004] Chinese patent CN220009989U discloses a quick-release base for a motorcycle fuel tank bag. This device achieves quick assembly and disassembly of the fuel tank bag through magnetic attraction and a buckle structure, and includes a position adjustment component to solve the problems of cumbersome assembly and difficult disassembly of traditional fuel tank bags. However, it still has the following shortcomings: its buckle component relies on the independent drive of symmetrical buckles, lacking a forced synchronization mechanism. It is prone to asynchronous movement of the buckles on both sides due to processing errors or wear, leading to unlocking failure or insecure locking; moreover, its drive component uses a combination of a pull strap and rigid transmission, which is laborious to operate, has a stiff feel, and is prone to wear and breakage after long-term use, affecting the reliability of the device.

[0005] Therefore, how to provide a quick-release device for fuel tank bags that integrates rapid disassembly and assembly, flexible position adjustment, and built-in anti-theft function has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] In view of this, in order to overcome the shortcomings of the prior art, the present invention aims to provide a quick-release device for fuel tank bags.

[0007] This utility model provides a quick-release device for a fuel tank bag. The device includes a base assembly and a quick-release assembly. The base assembly includes a fuel tank holder and a fuel tank holder buckle. The quick-release assembly includes a main body shell, two main body sliders, and four main body slider springs. The fuel tank holder is connected to the fuel tank holder buckle. The fuel tank holder buckle is provided with a first buckle and a slot. The main body shell is provided with a first through groove. The first buckle cooperates with the first through groove. The main body slider is provided with a second buckle and cooperates with the slot. The main body slider springs are provided on the main body sliders, so that the two main body sliders are movably and symmetrically arranged in the main body shell, realizing the quick installation and removal of the fuel tank bag.

[0008] Optionally, in the quick-release device for fuel tank bags of this utility model, the main body shell has symmetrically arranged first through grooves on both sides, a second limiting block is provided inside the first through groove, a tension spring groove is provided at one end of the main body shell, a third limiting block with a first through hole is provided at the other end, the first limiting blocks are symmetrically arranged on both sides of the first through hole, and a third through hole is provided on one side of the main body shell.

[0009] Optionally, in the quick-release device for fuel tank bags of this utility model, spring grooves and second through grooves are symmetrically arranged on both sides of the main slider, two second buckles are provided on one side of the main slider, and two limiting pins are symmetrically arranged on the surface of the main slider on the other side opposite to the first limiting block. The first limiting block is located in the spring groove, and the second limiting block cooperates with the second through groove.

[0010] Optionally, the quick-release device for the fuel tank bag of this utility model further includes a pull plate and a tension spring. The pull plate is provided with a first limiting groove and a second limiting groove. A locking block is provided on one side of the pull plate. The pull plate is located above the main body slider. The first limiting groove cooperates with the limiting pin, the second limiting groove cooperates with the third limiting block, one end of the tension spring is connected to the tension spring groove, and the other end of the tension spring is connected to the pull plate.

[0011] Optionally, the quick-release device for the fuel tank bag of this utility model further includes a main cover plate, which is fixedly connected to the main body shell by fasteners. The main cover plate is provided with a second through hole, which is coaxially corresponding to the first through hole.

[0012] Optionally, the quick-release device for the fuel tank bag of this utility model further includes an adjustment component, which includes a fuel tank bag fixing plate and a fuel tank bag guide slider. The fuel tank bag fixing plate is provided with slider grooves at both ends, and the fuel tank bag guide slider is fixed on the main cover plate and located in the slider groove.

[0013] Optionally, the quick-release device for the fuel tank bag of this utility model further includes a button, a limit block and a fixing screw in the adjustment component. The fuel tank bag fixing plate is provided with a wave-shaped positioning groove. The button passes through the first through hole and the second through hole and is fixed to the limit block by the fixing screw. The lower end of the limit block cooperates with the wave-shaped positioning groove.

[0014] Optionally, the quick-release device for the fuel tank bag of this utility model further includes a button spring in the adjustment component. One end of the button spring is connected to a button, and the other end of the button spring is connected to the main body cover plate.

[0015] Optionally, the quick-release device for the fuel tank bag of this utility model also includes a locking component, which includes a lock, a lock tongue and a lock body cover plate. The lock body cover plate is located above one end of the main body housing and is locked in the third through hole. The end of the lock tongue abuts against the side of the locking block of the pull plate.

[0016] Optionally, in the quick-release device for the fuel tank bag of this utility model, the fuel tank holder buckle is provided with a fastening hole, and the fuel tank holder is connected to the fastening hole by a fastener.

[0017] This utility model provides a quick-release device for fuel tank bags, which has the following beneficial technical effects:

[0018] 1. Enables quick assembly and disassembly: The fuel tank bag can be installed and disassembled without tools, making the operation extremely simple.

[0019] 2. It has a position adjustment function: allowing users to flexibly adjust the front and rear installation position of the fuel tank pack according to their needs, thus improving its applicability.

[0020] 3. It provides a built-in reliable anti-theft function: the locking tongue prevents disassembly operations from being performed when the lock is closed, fundamentally solving the hidden danger of poor anti-theft performance of traditional quick-release structures. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural example diagram of a quick-release device for a fuel tank bag according to an embodiment of the present utility model;

[0023] Figure 2 This is another structural example diagram of a quick-release device for a fuel tank bag according to an embodiment of the present utility model;

[0024] Figure 3 This is an example diagram of the fuel tank holder buckle structure according to an embodiment of the present utility model;

[0025] Figure 4 This is an example diagram of the main shell structure according to an embodiment of the present utility model;

[0026] Figure 5 This is an example diagram of the main slider structure according to an embodiment of the present utility model;

[0027] Figure 6 This is an example diagram of another structure of the main slider according to an embodiment of the present utility model;

[0028] Figure 7 This is an example diagram of the quick-release component structure according to an embodiment of the present utility model;

[0029] Figure 8 This is another structural example diagram of the quick-release assembly according to an embodiment of the present utility model;

[0030] Figure 9 This is another structural example diagram of the quick-release assembly according to an embodiment of the present utility model;

[0031] Figure 10 This is a first partial example diagram of a quick-release device for a fuel tank bag according to an embodiment of the present utility model;

[0032] Figure 11 This is a structural cross-sectional view of a quick-release device for a fuel tank bag according to an embodiment of the present utility model;

[0033] Figure 12 This is a second partial example diagram of a quick-release device for a fuel tank bag according to an embodiment of the present utility model;

[0034] In the diagram, 1-base assembly, 2-quick release assembly, 3-adjustment assembly, 4-locking assembly, 11-fuel tank holder, 12-fuel tank holder buckle, 21-main body shell, 22-main body slider, 23-main body slider spring, 24-pull plate, 25-tension spring, 26-main body cover plate, 31-fuel tank bag fixing plate, 32-fuel tank bag guide slider, 33-button, 34-button spring, 35-limit block, 36-fixing screw, 41-lock, 42-lock tongue, 43-lock body cover plate, 121-first 122-Fasting hole, 123-Slot, 211-First through slot, 212-Second limit block, 213-Tension spring slot, 214-First limit block, 215-Third limit block, 216-Third through hole, 217-First through hole, 221-Spring slot, 222-Second through slot, 223-Second buckle, 224-Limit pin, 241-First limit slot, 242-Second limit slot, 243-Locking block, 261-Second through hole, 311-Positioning slot, 312-Slider slot. Detailed Implementation

[0035] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Figure 1 This is a structural example diagram of a quick-release device for a fuel tank bag according to an embodiment of the present utility model. Figure 2 This is another structural example diagram of a quick-release device for a fuel tank bag according to an embodiment of the present utility model, as shown below. Figure 1 , Figure 2 As shown, in this embodiment, the fuel tank bag quick-release device includes a base assembly 1, a quick-release assembly 2, an adjustment assembly 3, and a locking assembly 4. The base assembly 1 is fixed to the motorcycle, and the quick-release assembly 2 engages and locks with the base assembly 1 to achieve quick installation and removal of the fuel tank bag. The adjustment assembly 3 is connected to the fuel tank bag body and can drive the entire fuel tank bag to slide back and forth relative to the quick-release assembly 2 to adjust the installation position. The locking assembly 4 is installed on the outside of the quick-release assembly 2 to restrict the disassembly action of the quick-release assembly 2 and achieve the anti-theft function.

[0039] Figure 3 This is an example diagram of the fuel tank holder buckle structure according to an embodiment of the present utility model, as shown below. Figures 1 to 3 As shown, in this embodiment, the base assembly 1 includes a fuel tank holder 11 and a fuel tank holder buckle 12. The fuel tank holder buckle 12 is provided with a first buckle 121 and a fastening hole 122 for installation, wherein the first buckle 121 is provided with a locking groove 123. The fuel tank holder 11 is connected to the fastening hole 122 on the fuel tank holder buckle 12 by fasteners, thereby reliably fixing the entire base assembly 1 to a predetermined position on the motorcycle.

[0040] Figure 4 This is an example diagram of the main shell structure according to an embodiment of the present utility model, as shown below. Figure 2 , Figure 4 As shown, in this embodiment, the quick-release assembly 2 includes a main body housing 21. The main body housing 21 has symmetrically arranged first through grooves 211 on both sides for accommodating the first latch 121 of the base assembly 1. A second limiting block 212 is provided inside the first through groove 211. One end of the main body housing 21 has a tension spring groove 213, and the other end has a third limiting block 215 with a first through hole 217. First limiting blocks 214 are symmetrically arranged on both sides of the first through hole 217. A third through hole 216 is provided on one side of the main body housing 21.

[0041] Figure 5This is an example diagram of the main slider structure according to an embodiment of the present utility model. Figure 6 This is another structural example diagram of the main slider according to an embodiment of the present utility model, as shown below. Figure 5 , Figure 6 As shown, in this embodiment, the main body slider 22 has symmetrically arranged spring grooves 221 and second through grooves 222 on both sides. One end of the spring groove 221 has an opening for engaging with the first limiting block 214 on the main body housing 21. Two second latches 223 are provided on one side of the main body slider 22 for engaging with the latches 123 of the base assembly 1. On the opposite side from the first limiting block 214, two limiting pins 224 are symmetrically arranged on the surface of the main body slider 22.

[0042] Figure 7 This is an example diagram of the quick-release component structure according to an embodiment of the present utility model, such as... Figure 7 As shown, in this embodiment, the quick-release assembly 2 further includes two main sliders 22 and four main slider springs 23. The main slider springs 23 are disposed within the spring grooves 221 of the main sliders 22, and the two main sliders 22 are symmetrically arranged within the main housing 21. A first limiting block 214 on the main housing 21 is located within the spring grooves 221, and a second limiting block 212 on the main housing 21 cooperates with a second through groove 222 on the main slider 22 to jointly ensure that the main slider 22 moves smoothly within a predetermined stroke.

[0043] It should be noted that in actual assembly, one end of the main slider spring 23 abuts against the first limiting block 214, which is fixed to the main body housing 21 and remains stationary, thus providing a stable support foundation for the main slider spring 23. When the main slider 22 moves under the action of external force, the spring groove 221 is displaced relative to the fixed first limiting block 214, thereby compressing the main slider spring 23 and storing elastic potential energy.

[0044] Figure 8 Here is another structural example diagram of the quick-release assembly according to an embodiment of the present utility model, as shown below. Figure 8As shown, in this embodiment, the quick-release assembly 2 further includes a pull plate 24 and a tension spring 25. The pull plate 24 has a first limiting groove 241 and a second limiting groove 242, and a locking block 243 on one side. The pull plate 24 is positioned above the main body slider 22, and its first limiting groove 241 cooperates with the limiting pin 224 of the main body slider 22, enabling the pull plate 24 to precisely drive the main body slider 22 to move synchronously. The second limiting groove 242 cooperates with the third limiting block 215 of the main body housing 21, limiting the movement range of the pull plate 24. One end of the tension spring 25 is connected to the tension spring groove 213 of the main body housing 21, and the other end is connected to the pull plate 24, providing a restoring force for the pull plate 24. In practical applications, when the user pulls the pull plate 24, the limiting pin 224 drives the main body slider 22 to move inward against the force of the main body slider spring 23, achieving disengagement from the base assembly 1.

[0045] Figure 9 This is another structural example diagram of the quick-release assembly according to an embodiment of the present utility model, as shown below. Figure 9 As shown, in this embodiment, the quick-release assembly 2 also includes a main cover plate 26. The main cover plate 26 and the main housing 21 are fixedly connected by fasteners to form a closed mounting cavity for accommodating and protecting the internal components of the quick-release assembly 2. A second through hole 261 is provided on the main cover plate 26, which is coaxially corresponding to the first through hole 217 on the main housing 21.

[0046] Figure 10 This is a first partial example diagram of a quick-release device for a fuel tank bag according to an embodiment of the present utility model, as shown below. Figure 10 As shown, the first latch 121 of the base assembly 1 engages with the first through slot 211 on the main body housing 21 to guide the main body slider 22. The second latch 223 on the main body slider 22 engages with the slot 123 on the first latch 121 to form a reliable mechanical interlock.

[0047] Figure 11 This is a structural cross-sectional view of a quick-release device for a fuel tank bag according to an embodiment of the present utility model, as shown below. Figures 1 to 11As shown, in this embodiment, the adjustment component 3 includes a fuel tank bag fixing plate 31, two fuel tank bag guide sliders 32, a button 33, a button spring 34, a limiting block 35, and a fixing screw 36. The fuel tank bag body is fixed to the fuel tank bag fixing plate 31 by fasteners. The fuel tank bag fixing plate 31 has symmetrically arranged slider grooves 312 at both ends. The fuel tank bag guide sliders 32 are fixed on the main body cover plate 26 and located in the slider grooves 312, so that the quick-release component 2 can be adjusted and slid along the direction of the slider grooves 312. The fuel tank bag fixing plate 31 has a wave-shaped positioning groove 311 at its center, which cooperates with the limiting block 35 to achieve position locking. The button 33 passes through the first through hole 217 on the main body housing 21 and the second through hole 261 on the main body cover plate 26, and is fixed to the limiting block 35 by the fixing screw 36. One end of the button spring 34 is connected to the button 33, and the other end is connected to the main body cover plate 26, providing a reset force for the button.

[0048] Figure 12 This is a second partial example diagram of a quick-release device for a fuel tank bag according to an embodiment of the present utility model, as shown below. Figure 12 As shown, in this embodiment, the locking assembly 4 includes a lock 41, a bolt 42, and a lock body cover 43. The lock body cover 43 is located above one end of the main body housing 21, forming a receiving cavity together with the main body housing 21. The bolt 42 cooperates with the lock 41 and is located within this cavity, while the lock 41 is located within the third through hole 216 of the main body housing 21. When the bolt 42 rotates with the lock 41 to a specific angle, the end of the bolt 42 abuts against the side of the locking block 243 of the pull plate 24. This creates physical interference, thereby preventing the pull plate 24 from being pulled and achieving the anti-theft function.

[0049] The application principle of this utility model's quick-release device for fuel tank bags is as follows:

[0050] When installing the fuel tank pack, align the opening at the bottom of the quick-release assembly 2 with and press it against the base assembly 1, which is already fixed to the motorcycle. During this process, the fuel tank holder latch 12 of the base assembly 1 will press against the main body slider 22 inside the quick-release assembly 2, causing it to move inward against the elastic force of the main body slider spring 23. When the fuel tank holder latch 12 has completely slid past the second latch 223 on the main body slider 22, the main body slider 22 will quickly return to its original position and extend forward under the drive of the main body slider spring 23, so that the second latch 223 and the slot 123 on the fuel tank holder latch 12 form a firm mechanical interlock, thereby completing the installation.

[0051] When the fuel tank pack needs to be disassembled, the user pulls the pull plate 24 outward. The pull plate 24, through its first limiting groove 241, engages with the limiting pin 224 on the main slider 22, causing the main slider 22 to move inward against the elastic force of the main slider spring 23. As the main slider 22 moves, its second latch 223 disengages from the latch 123 of the base assembly 1, releasing the interlock, allowing the user to lift the fuel tank pack as a whole for quick disassembly. After releasing the pull plate 24, the tension spring 25 pulls the pull plate 24 back to its original position, and the main slider 22 also returns to the locked position under the action of its spring 23.

[0052] When the front-to-back position of the fuel tank bag needs to be adjusted, the user presses button 33. Button 33 overcomes the elastic force of button spring 34, causing the fixed limiting block 35 to move upward, disengaging it from the wave-shaped positioning groove 311 of the fuel tank bag fixing plate 31. At this time, the entire quick-release assembly 2 can be pushed back and forth as a whole through the sliding engagement of its fuel tank bag guide slider 32 with the slider groove 312 of the fuel tank bag fixing plate 31. After the position is determined, button 33 is released, and button spring 34 pushes button 33 and limiting block 35 back to reset, causing limiting block 35 to re-engage in the corresponding trough of the wave-shaped positioning groove 311, achieving precise locking of the position.

[0053] When the fuel tank pack is installed on the vehicle and needs to be protected against theft, the user uses the key to turn lock 41. Lock 41 causes the bolt 42 to rotate to a specific angle, allowing it to extend into the quick-release assembly 2. Its front end rotates onto the movement path of the locking block 243 of the pull plate 24. When the user attempts to pull the pull plate 24, the side of the locking block 243 collides with the bolt 42, effectively blocking it and preventing the pull plate 24 from moving, thus achieving the anti-theft function. To unlock, simply turn lock 41 in the opposite direction to move the bolt 42 out of the path of the pull plate 24.

[0054] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A quick-release device for a fuel tank bag, characterized in that, The quick-release device for the fuel tank includes a base assembly (1) and a quick-release assembly (2). The base assembly (1) includes a fuel tank holder (11) and a fuel tank holder buckle (12). The quick-release assembly (2) includes a main body shell (21), two main body sliders (22), and four main body slider springs (23). The fuel tank holder (11) is connected to the fuel tank holder buckle (12). The fuel tank holder buckle (12) is provided with a first buckle (121) and a slot. (123) The main body shell (21) is provided with a first through groove (211), and the first buckle (121) cooperates with the first through groove (211). The main body slider (22) is provided with a second buckle (223), and the second buckle (223) cooperates with the slot (123). The main body slider spring (23) is provided on the main body slider (22), so that the two main body sliders (22) are movably and symmetrically arranged in the main body shell (21) to realize the quick installation and disassembly of the fuel tank bag.

2. The quick-release device for fuel tank bags according to claim 1, characterized in that, The main body shell (21) has a first through groove (211) symmetrically arranged on both sides. The first through groove (211) has a second limiting block (212) inside. The main body shell (21) has a tension spring groove (213) at one end and a third limiting block (215) with a first through hole (217) at the other end. The first limiting blocks (214) are symmetrically arranged on both sides of the first through hole (217). The main body shell (21) has a third through hole (216) on one side.

3. The quick-release device for fuel tank bags according to claim 2, characterized in that, The main slider (22) is symmetrically provided with spring grooves (221) and second through grooves (222) on both sides. The main slider (22) is provided with two second buckles (223) on one side. On the other side opposite to the first limiting block (214), the main slider (22) is symmetrically provided with two limiting pins (224). The first limiting block (214) is located in the spring groove (221), and the second limiting block (212) cooperates with the second through groove (222).

4. The quick-release device for fuel tank bags according to claim 3, characterized in that, The quick-release assembly (2) also includes a pull plate (24) and a tension spring (25). The pull plate (24) is provided with a first limiting groove (241) and a second limiting groove (242). A locking block (243) is provided on one side of the pull plate (24). The pull plate (24) is located above the main slider (22). The first limiting groove (241) cooperates with the limiting pin (224). The second limiting groove (242) cooperates with the third limiting block (215). One end of the tension spring (25) is connected to the tension spring groove (213), and the other end of the tension spring (25) is connected to the pull plate (24).

5. The quick-release device for fuel tank bags according to claim 4, characterized in that, The quick-release assembly (2) also includes a main cover plate (26), which is fixedly connected to the main body housing (21) by fasteners. The main cover plate (26) is provided with a second through hole (261), which is coaxially corresponding to the first through hole (217).

6. The quick-release device for fuel tank bags according to claim 5, characterized in that, The quick-release device for the fuel tank bag also includes an adjustment component (3), which includes a fuel tank bag fixing plate (31) and a fuel tank bag guide slider (32). The fuel tank bag fixing plate (31) has slider grooves (312) at both ends. The fuel tank bag guide slider (32) is fixed on the main cover plate (26) and located in the slider groove (312).

7. The quick-release device for fuel tank bags according to claim 6, characterized in that, The adjustment assembly (3) also includes a button (33), a limit block (35) and a fixing screw (36). The fuel tank bag fixing plate (31) is provided with a wave-shaped positioning groove (311). The button (33) passes through the first through hole (217) and the second through hole (261) and is fixed to the limit block (35) by the fixing screw (36). The lower end of the limit block (35) cooperates with the wave-shaped positioning groove (311).

8. The quick-release device for fuel tank bags according to claim 7, characterized in that, The adjustment assembly (3) also includes a button spring (34), one end of which is connected to the button (33), and the other end of which is connected to the main body cover plate (26).

9. The quick-release device for fuel tank bags according to claim 4, characterized in that, It also includes a locking assembly (4), which includes a lock (41), a bolt (42) and a lock body cover (43). The lock body cover (43) is located above one end of the main body housing (21). The lock (41) is located in the third through hole (216). The end of the bolt (42) abuts against the side of the locking block (243) of the pull plate (24).

10. The quick-release device for fuel tank bags according to claim 1, characterized in that, The fuel tank holder buckle (12) is provided with a fastening hole (122), and the fuel tank holder (11) is connected to the fastening hole (122) by a fastener.

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