Magnetic closure buckle for bicycle rear racks

Abstract

Magnetic fastening buckle for bicycle rear luggage carriers, comprising a base (1), characterized in that four elongated oval holes (19) are symmetrically formed on each of two sides of the base (1), wherein an upper cover plate (3) is attached to the base (1), a pull rod (4) is slidably connected to the center of which, a stop plate (5) is attached above the pull rod (4), and a spring groove (9) is formed below the pull rod (4), wherein a snap spring (8) is inserted at the center of the underside of the pull rod (4) and a corresponding position of the spring groove (9), wherein the two ends of the spring groove (9) are each formed with a buckle groove (6) at the center between the upper cover plate (3) and the base (1), and wherein a snap clip (7) is attached between the underside of the pull rod (4) and corresponding positions of the two buckle grooves (6).wherein a first magnetic groove (10) is formed at the midpoint between the two ends of the upper cover plate (3), while a second magnetic groove (11) is formed between the midpoint of the two ends of the base (1) and a corresponding position of the first magnetic groove (10).

Description

[0001] The utility model relates to bicycle-specific accessory technology, in particular a magnetic closure buckle for bicycle rear luggage carriers.

[0002] A bicycle is generally a small, two-wheeled land vehicle propelled by the rider's pedaling and serves as an environmentally friendly means of transport. As a traditional industry with over a century of history, bicycles have regained immense popularity worldwide – particularly among residents of developed countries – as both a means of transport and a fitness tool, a trend driven by environmental concerns and traffic problems.

[0003] In everyday use, panniers or baskets are often attached to a bicycle's luggage rack to increase its carrying capacity. However, securing items to this rack is usually done by directly tying them on with ropes, largely relying on the user's bundling technique. This approach is not only cumbersome but can also lead to insecure attachments, indicating a need for improvement.

[0004] The utility model therefore aims to provide a magnetic closure buckle for bicycle rear luggage carriers.

[0005] To solve the problem, a magnetic fastening buckle for bicycle rear racks is provided, comprising a base and two crossbars, wherein the two crossbars are attached below the base, wherein four elongated oval holes are symmetrically formed on each of two sides of the base, while two nut fastening holes are symmetrically formed at the center of each of two ends of the crossbar, wherein an upper cover plate is attached to the base, to the center of which a pull rod is slidably connected, a stop plate is fixedly attached above the pull rod, and a spring groove is formed below the pull rod, wherein a snap spring is inserted at the center of the underside of the pull rod and at a corresponding position in the spring groove, wherein the two ends of the spring groove between the center of the upper cover plate and the base are each formed with a buckle groove.wherein a snap clamp is attached between the underside of the pull rod and the corresponding positions of the two buckle grooves.

[0006] A first magnetic groove is formed at the midpoint between the two ends of the upper cover plate, while a second magnetic groove is formed between the midpoint of the two ends of the base and a corresponding position of the first magnetic groove. A third magnetic groove is formed at the midpoint of each of the two crossbars. A fixing hole (18) is formed at each of the four corners of the upper cover plate (3). The first two magnetic grooves, the second two magnetic grooves, and the third two magnetic grooves are each provided with an internal magnetic disk.

[0007] It may also be provided that a fixing hole is formed at each of the four corners of the upper cover plate, allowing a bag or storage basket to be screwed onto the upper cover plate.

[0008] It may also be provided that the polarities of the magnetic disks in the first two magnetic grooves are opposite to those of the magnetic disks in the second two magnetic grooves, so that the cover plate can adhere to the base in the correct position due to the attraction of the opposite polarities.

[0009] It may also be provided that a central ridge is formed at the center of the underside of the upper cover plate, while a central recess matching the central ridge is formed at the center of the top of the base, so that the upper cover plate can be aligned and fixed to the base.

[0010] It may also be provided that a projection is formed at each of the four corners of the central rib under the upper cover plate, while a positioning notch matching a projection is formed on the top of the base so that the hole positions align when the upper cover plate is assembled with the base.

[0011] It may also be provided that the end of the pull rod protruding from the upper cover plate is designed with an operating hole for convenient extension of the pull rod.

[0012] It may also be provided that a flush anti-theft hole is formed in the middle between the two ends of the base, the upper cover plate and the pull rod, which allows for locking to prevent accidental operation or to serve as theft protection.

[0013] It may also be provided that on both sides at both ends of the base a gripper complementary to the elongated oval hole is attached, on each of which two slots matching the elongated oval holes are formed, and on each of its middle underside a clamping strip with a threaded hole is connected, and in its top side a screw hole matching the said threaded hole is formed.

[0014] Furthermore, an adhesive can be applied to the outer surfaces of several magnetic discs in order to fix the magnetic disc to a corresponding magnetic groove.

[0015] The above design exhibits at least the following performance capabilities: 1. The present utility model comprises a base and a top cover plate in conjunction with two crossbars and a pull rod. When mounting the magnetic closure buckle, the base is screwed onto the crossbars to attach the buckle body to the bicycle's rear rack. With this design, featuring eight elongated oval holes on each side, the base can be attached to rear racks of various dimensions. During use, the top cover plate adheres magnetically to the base and is then locked in place by the two snap clamps. The pull rod is integrated into the two snap clamps, so that releasing the pull rod unlocks and detaches the top cover plate from the base. This makes it possible to conveniently attach a pannier or basket to the rear rack of a bicycle. 2. Each crossbar according to the invention is designed with four nut mounting holes, each of which receives an embedded nut for connection with a screw in order to attach the base to rear luggage carriers of various dimensions via the elongated oval holes. In addition, the magnetic disc embedded in the crossbar enables direct attachment to the bicycle frame, which simplifies installation and improves practicality. 3. The utility model comprises a gripper pre-attached to the base. For use, the base can be pressed directly onto the rear seat of the bicycle, thus achieving initial fixation via the hook area. The clamping bar is then moved by turning the laterally mounted screw to secure it. This eliminates the need to pre-position the crossbars under the seat and then align them with the mounting holes, thereby reducing the effort required for assembly.

[0016] Further objectives, advantages and features of the embodiment according to the invention will become apparent from the following description of the exemplary embodiments with reference to the following drawings.

[0017] The present design is described in detail below using the exemplary embodiments and the accompanying figures. Fig. Figure 1 shows a three-dimensional top view of the first embodiment of the utility model, Fig. Figure 2 shows a three-dimensional upward view of the first embodiment of the utility model, Fig. Figure 3 shows a three-dimensional top view of the base according to the invention, Fig. Figure 4 shows a three-dimensional upward view of the base according to the invention, Fig. Figure 5 shows a three-dimensional top view of the upper cover plate according to the invention, Fig. Figure 6 shows a three-dimensional upward view of the upper cover plate according to the invention, Fig. Figure 7 shows a 3D view of the pull rod according to the invention, Fig. Figure 8 shows a view of the crossbar according to the invention, Fig. Figure 9 shows a three-dimensional top view of the second embodiment of the utility model, Fig. Figure 10 shows a three-dimensional upward view of the second embodiment of the utility model, Fig. Figure 11 shows a three-dimensional top view of the gripper in the second embodiment of the utility model, Fig. Figure 12 shows a three-dimensional upward view of the gripper in the second embodiment of the utility model. Reference symbol list

[0018] 1. Base; 2. Crossbar; 3. Top cover plate; 4. Pull rod; 5. Stop plate; 6. Buckle groove; 7. Snap clamp; 8. Snap spring; 9. Spring groove; 10. First magnetic groove; 11. Second magnetic groove; 12. Third magnetic groove; 13. Magnetic disc; 14. Center recess; 15. Center collar; 16. Projection; 17. Positioning notch; 18. Fixing hole; 19. Elongated oval holes; 20. Nut mounting holes; 21. Operating hole; 22. Gripper. DETAILED DESCRIPTION OF EXAMPLES OF EXECUTION

[0019] The specific embodiments of the utility model are explained below, with the preferred embodiments illustrated by the accompanying drawings. The figures serve to supplement the textual description of the specifications with graphical representations, enabling an intuitive and visual understanding of the individual technical features and the technical solution of the utility model. The drawings are simplified and use imprecise scales to provide a clear and concise representation of the embodiments of the utility model and therefore do not constitute a limitation of the scope of protection of the utility model. With reference to a first embodiment

[0020] As from Fig. 1 to Fig. As can be seen in Figure 8, the magnetic closure buckle according to the invention comprises a base 1 and two crossbars 2, the two crossbars 2 being attached below the base 1, with four elongated oval holes 19 symmetrically formed on each of two sides of the base 1, while two nut fastening holes 20 are symmetrically formed at the center of each of the two ends of the crossbars 2. A third magnetic groove 12 is formed at the center of each of the two crossbars 2 for absorbing the crossbars 2 onto the bicycle frame.

[0021] A top cover plate 3 is attached to the base 1, with a fixing hole 18 at each of its four corners, allowing a bag or basket to be screwed to the top cover plate 3. A pull rod 4 is slidably connected to the center of the top cover plate 3. The end of the pull rod 4 projecting from the top cover plate 3 has an operating hole 21 for convenient extension of the pull rod 4. A stop plate 5 is attached above the pull rod 4, and a spring groove 9 is formed below the pull rod 4. A snap spring 8 is inserted at the center of the underside of the pull rod 4 and at a corresponding position in the spring groove 9.The two ends of the spring groove 9, located midway between the upper cover plate 3 and the base 1, each have a buckle groove 6. A snap clip 7 is positioned between the underside of the pull rod 4 and the corresponding positions of the two buckle grooves 6. The snap spring 8 is located in the center of the upper cover plate 2, enabling automatic locking when the snap clip 7 engages with the snap spring 8. Pulling the pull rod 4 releases the locking mechanism, separating the upper cover plate 2 from the base 1.

[0022] A central ridge 15 is formed at the center of the underside of the upper cover plate 3, while a central recess 14 complementary to the central ridge (15) is formed at the center of the upper side of the base 1, enabling the upper cover plate 3 to be aligned and fixed to the base 1. A projection 16 is formed at each of the four corners of the central ridge 15 under the upper cover plate 3, while a positioning notch 17 corresponding to a projection 16 is formed on the upper side of the base 1, ensuring that the hole positions align when the upper cover plate 3 is assembled with the base 1.

[0023] A first magnetic groove 10 is formed at the midpoint between the two ends of the upper cover plate 3, while a second magnetic groove 11 is formed between the midpoint of the two ends of the base 1 and a corresponding position of the first magnetic groove 10. The first two magnetic grooves 10, the second two magnetic grooves 11, and the third two magnetic grooves 12 are each provided with an internal magnetic disk (13), the polarities of the magnetic disks in the first two magnetic grooves 10 being opposite to those in the second two magnetic grooves 11, so that the cover plate 3 can adhere to the base 1 in the correct position due to the attraction of the opposite polarities. With reference to a second embodiment

[0024] In Fig. 9 to Fig.Figure 12 shows a second embodiment which differs from the first embodiment as follows: a magnetic closure buckle comprising a base 1, on each of the two sides of which four elongated oval holes 19 are formed, wherein a gripper 22 complementary to the elongated oval hole 19 is attached to each of the two sides at the two ends of the base 1, and on each of these grippers two slots are formed that align with the elongated oval holes (19), so that the width remains adjustable, wherein a clamping strip with a threaded hole is connected to the central underside of each of the four grippers 22, and a screw hole corresponding to the aforementioned threaded hole is formed in the upper side of each of the four grippers 22. By attaching a corresponding screw, the clamping strip can be moved under the grippers 22.The four grippers 22 can be screwed onto the base 1 via the slots that align with the elongated oval holes 19. For use, the base 1 can be pressed directly onto the rear seat of the bicycle, thus achieving initial fixation via the hook area. The clamping strip is then moved by turning the screw on the side to secure it firmly.

[0025] The operating principle is as follows: When mounting the magnetic closure buckle, the base 1 is screwed onto the crossbars 2 to attach the buckle body to the rear luggage rack. Eight elongated oval holes 19 on either side of the base 1 allow it to be attached to rear luggage racks of various dimensions. During use, the upper cover plate 3 adheres magnetically to the base 1 and is then locked in place by the two snap clamps 7. The pull rod 4 is integrated into the two snap clamps 7, so that releasing the pull rod 4 unlocks and detaches the upper cover plate 3 from the base 1. This makes it easy to attach a pannier or basket to the rear luggage rack of a bicycle.

[0026] Furthermore, each crossbar 2 is provided with four nut mounting holes 4, each accommodating an embedded nut for connection with a screw, in order to attach the base 1 to rear luggage carriers of various dimensions via the elongated oval holes 19. In addition, the magnetic disc 13 embedded in the crossbar 2 allows direct attachment to the bicycle frame, which simplifies installation and improves practicality.

[0027] It should be noted that the embodiment according to the invention is not limited to the present exemplary embodiments, but can be varied in many ways within the scope of the disclosure. In this context, all new individual and combination features disclosed in the description and / or drawings are considered essential to the invention.

Claims

[1] Magnetic locking buckle for bicycle rear luggage carrier, comprising a base (1), characterized by, that four elongated oval holes (19) are symmetrically formed on each of two sides of the base (1), wherein an upper cover plate (3) is attached to the base (1), a pull rod (4) is slidably connected to the center of which a stop plate (5) is attached above the pull rod (4), and a spring groove (9) is formed below the pull rod (4), wherein a snap spring (8) is inserted at the center of the underside of the pull rod (4) and a corresponding position of the spring groove (9), wherein the two ends of the spring groove (9) are each formed with a buckle groove (6) at the center between the upper cover plate (3) and the base (1), wherein a snap clamp (7) is attached between the underside of the pull rod (4) and corresponding positions of the two buckle grooves (6), wherein a first magnetic groove (10) is formed at the center between the two ends of the upper cover plate (3),while a second magnetic groove (11) is formed between the center of the two ends of the base (1) and a corresponding position of the first magnetic groove (10). [2] Magnetic closure buckle according to claim 1, characterized by , that a crossbar (2) is attached to each of the two ends of the underside of the base (1), wherein two nut fixing holes (20) are formed symmetrically at the middle of each of the two ends of the crossbar (2), and a third magnetic groove (12) is formed at the middle of each of the two crossbars (2), wherein a fixing hole (18) is formed at each of the four corners of the upper cover plate (3). [3] Magnetic closure buckle according to claim 2, characterized by, that the two first magnetic grooves (10), the two second magnetic grooves (11) and the two third magnetic grooves (12) are each provided with an internal magnetic disk (13), wherein the polarities of the magnetic disks (13) in the two first magnetic grooves (10) are opposite to the magnetic disks (13) in the two second magnetic grooves (11). [4] Magnetic closure buckle according to claim 1, characterized by , that a central flange (15) is formed at the center of the underside of the upper cover plate (3), while a central recess (14) matching the central flange (15) is formed at the center of the top of the base (1). [5] Magnetic closure buckle according to claim 1, characterized by, that a projection (16) is formed at each of the four corners of the central rib (15) under the upper cover plate (3), while a positioning notch (17) corresponding to a projection (16) is formed on the upper side of the base (1). [6] Magnetic closure buckle according to claim 1, characterized by , that the end of the pull rod (4) protruding from the upper cover plate (3) is formed with an operating hole (21). [7] Magnetic closure buckle according to claim 1, characterized by , that in the middle between the two ends of the base (1), the upper cover plate (3) and the pull rod (4) each has a flush anti-theft hole. [8] Magnetic closure buckle according to claim 1, characterized by, that on both sides at both ends of the base (1) a gripper (22) complementary to the elongated oval hole (19) is attached, on each of which two slots matching the elongated oval holes (19) are formed and on each of its middle underside a clamping strip with threaded hole is connected and in each of its top side a screw hole matching the said threaded hole is formed.

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