Quick-release buckle and quick-release clamping seat of bicycle goods shelf

Abstract

The invention belongs to the technical field of bicycles, and particularly relates to a bicycle shelf quick-release buckle and a quick-release clamping seat, the quick-release buckle comprises a movable buckle, the movable buckle comprises a first connecting seat and a rotating arm, the first connecting seat is arranged on the upper side of a main supporting rib, the upper end of the rotating arm is rotatably connected with the first connecting seat through a pivoting shaft, and a bending part is arranged at the lower end of the rotating arm; the bending part swings to the lower side of the main supporting rib through rotation of the rotating arm so as to be buckled on the surface of the main supporting rib; the bending part is separated from the main supporting rib through reverse rotation of the rotating arm; the quick-release clamping seat comprises a base frame, and a movable buckle is assembled on the base frame. According to the scheme, a special bicycle goods shelf is not needed, the device can be installed on a common bicycle goods shelf of a steel bar structure, goods shelf steel bars of different thicknesses can be adapted, and the device can also be adapted to bicycle goods shelves of different widths; according to the scheme, locking and unlocking are achieved through rotation of the rotary arm, and operation is convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of bicycles, and in particular relates to a quick-release buckle and a quick-release card seat of a bicycle rack. Background Art

[0002] Bicycles and electric bikes are typically equipped with a basket in the front and a shelf in the back. The basket in the front is typically used to place small items, while the shelf in the back is used to carry heavier or bulkier items. Traditionally, luggage and other items are secured to the shelf with straps. However, in the prior art, a connection device for connecting the shelf to the object holder is provided to provide stability between the object and the shelf, as well as facilitate installation and removal.

[0003] Reference 1: The invention patent number is CN201310593833.9, the application date is November 22, 2013, and the publication number is CN103552629A. It specifically discloses a bicycle rack bag buckle structure, including a bag body, a carrier and a buckle group for mounting the carrier on the bicycle rack. The buckle group includes a female hook block and a sub-connecting block. The female hook block and the sub-connecting block are assembled with each other, and the female hook block has a connecting section protruding from the sub-connecting block, and the sub-connecting block has a connecting hole corresponding to the connecting section. The female hook block extends with an arc hook portion along the direction of the bicycle rack, and the arc hook portion is hooked on the bicycle rack; a screw lock kit is also provided, and the screw lock kit is locked to the buckle group. The present invention fixes and assembles the carrier on the bicycle rack by locking the screw lock kit through the buckle group.

[0004] Reference 2: The utility model patent number is 202020753508.X, the application date is May 9, 2020, and the authorization announcement number is CN212290120U. It discloses a quick-release structure for a bicycle basket or luggage body, including a base and a movable buckle. The lower side of the base is symmetrically provided with a limiting part for cooperating with the rack. One of the limiting parts is integrally formed with a latch, which is used to latch the first part at one end of the bicycle rack. The other limiting part is connected to the movable buckle by a spring sliding connection. The inner side of the movable buckle and the base form a second part that latches the other end of the bicycle rack. A handle is provided on the outside of the movable buckle. This solution uses the handle to pull the movable buckle outward to provide sufficient spacing, so that the movable buckle falls to the outside of the second part and is latched to the second part by the spring, or the gravity of the object carried on the base forces the movable buckle to move outward briefly and then latch the second part.

[0005] Defects in the existing technology: 1) In Reference 1, the female hook block and the sub-connector block need to be reinforced with bolts to ensure the reliable locking of the carrier and the shelf. To unlock this structure, the bolts must be rotated to lower the female hook block to a sufficient height, which takes a long time and requires tools, making the operation time-consuming and labor-intensive. 2) In Reference 2, to unlock the system, the operator must keep pulling the handle outward. If the hand fails to hold the handle, the movable buckle automatically retracts and relocks. This solution also requires the shelf to be customized to accommodate the quick-release structure, resulting in poor compatibility and incompatibility with shelves of other shapes, limiting its scope of use. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a connecting device that does not require a specific shelf structure.

[0007] The present invention solves the above problems by adopting the following technical solutions: A quick-release buckle for a bicycle rack. The outer edge of the disk of the bicycle rack includes a main supporting rib. The quick-release buckle includes a movable buckle assembled at the bottom of a joint mechanism. The movable buckle includes a first connecting seat and a swing arm. The first connecting seat is arranged on the upper side of the main supporting rib. The upper end of the swing arm is rotatably connected to the first connecting seat through a pivot shaft. The lower end of the swing arm is provided with a bent portion. The bent portion is swung to the lower side of the main supporting rib through the rotation of the swing arm, thereby grabbing the surface of the main supporting rib; the bent portion is separated from the main supporting rib through the reverse rotation of the swing arm.

[0008] Compared with the prior art, the present invention adopting the above structure has the following beneficial effects: 1) Based on the common features of common bicycle rack structures, this invention provides a connection device that connects to the basic structure of a bicycle rack, eliminating the need for a dedicated, matching bicycle rack. 2) The present invention's movable buckle, through the rotation of the swing arm, causes the curved portion to snap onto the main support ribs of the bicycle rack, and through the cooperation of the connecting seat, the rack and the carried object are connected. The curved portion has a certain tolerance for the thickness of the main support ribs, making this invention applicable to a variety of bicycle racks and having a wider range of uses. 3) The swing arm is rotated to achieve locking and unlocking, making operation convenient.

[0009] As a preferred embodiment, a further technical solution of the above structure is: As an option, connecting ears are symmetrically provided at the upper end of the swing arm, and the connecting ears are movably mounted on the pivot shaft, and the two ends of the pivot shaft are connected to the first connecting seat; the end of the bent portion extends to the other side of the main support rib; the back of the bent portion is also fixed with a handle, and the lower end of the handle is bent in the direction opposite to the bent portion.

[0010] As an option, the bend has at least two points in contact with the lower portion of the main support rib, with the distance between the two points being 110° to 150°. As an option, the inner surface of the bent portion is U-shaped, with both ends of the bent portion abutting against the surface of the main support rib, and a gap being reserved between the lowest point of the bent portion and the main support rib.

[0011] As an option, a guide slope is provided on the lower end surface of the rotary arm, and the guide slope is inclined upward from the root of the curved portion to the end of the curved portion.

[0012] As an improvement, an installation cavity is provided inside the first connecting seat, and the holes for installing the pivot shaft on the two side panels of the installation cavity are long holes; a spring is installed in the installation cavity, the lower end of the spring is connected to the bottom plate of the installation cavity, and the upper end is connected to the stop block; the stop block is installed in the middle of the pivot shaft, and the rear end face of the stop block is in surface contact with the rear side plate of the installation cavity.

[0013] As an option, the first connecting seat is a box body, and a connecting component for connecting the joint mechanism is provided on the surface of the box body; a U-shaped card slot is provided at the bottom of the box body, and the U-shaped card slot is buckled on the upper surface of the main support rib.

[0014] As an option, a damping strip is provided on the side of the first connecting seat that matches the swing arm, and the surface of the damping strip is in friction contact with the swing arm.

[0015] As an option, it also includes a fixed clip assembled at the bottom of the joint mechanism and arranged opposite to the movable clip. The fixed clip is installed on the main support rib on the other side of the shelf. The fixed clip includes a second connecting seat and an L-shaped fixing plate. The upper end of the vertical part of the L-shaped fixing plate is fixedly connected to the lower surface of the second connecting seat. The L-shaped fixing plate and the lower surface of the second connecting seat form a U-shaped clip for clamping the main support rib on the other side.

[0016] As an option, the pivot shaft passes through the central axis of the stopper, and the rear end surface of the stopper is in surface contact with the inner wall of the first connecting seat.

[0017] To solve the above problem, the present invention also provides a quick-release card holder for a bicycle rack, the specific solution is as follows: A quick-release card holder for a bicycle rack includes a base frame for assembling a movable card buckle, or assembling a movable card buckle and a fixed card buckle. The base frame is a U-shaped structure, which is composed of two front and rear cross bars and two left and right longitudinal bars. The two ends of the cross bars protrude from the ends of the longitudinal bars, and the cross bars and / or the longitudinal bars are configured as a telescopic structure.

[0018] Compared with the prior art, the present invention adopting the above structure has the following beneficial effects: 1) This card holder structure combines multiple quick-release card holders into one through the base frame, so that the multiple card holders form a mutual force connection, thereby making their respective connection strength with the bicycle rack higher; 2) The base frame structure is more convenient for connection with the carried object and has a reinforcing effect on the bottom of the carried object.

[0019] As a preferred embodiment, a further technical solution of the above structure is: As an option, one side of the movable buckle provided at the bottom of the base frame is fixedly connected to a limit plate, and the limit plate contacts the side of the main support rib away from the swing arm.

[0020] As an option, the movable buckle is provided at one end of the cross bar and the fixed buckle is provided at the other end; the first connecting seat uses the end face of the cross bar as its rear side panel, and two side panels are symmetrically provided based on the rear side panel, and the lower ends of the two side panels are fixed to the bottom panel, and the rear side panel, the side panel and the bottom panel form an installation cavity; the second connecting seat is made into one piece with the other end of the cross bar, and the L-shaped fixing plate is fixed to the lower side of the cross bar.

[0021] As an option, the movable buckles are symmetrically arranged on the outside of the two longitudinal rods; the first connecting seat is a box-shaped structure with an open top, the box-shaped structure has the side walls of the longitudinal rods as its rear side panels, the pivot shaft passes through the first connecting seat, and the end of the pivot shaft extending out of the box-shaped structure is used to install the swing arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the movable buckle of the present invention; Figure 2 This is an exploded view of the structure of the movable buckle of the present invention; Figure 3 1 is a structural example diagram of the rotary arm of the present invention; Figure 4 This is a schematic diagram of the coordination between the curved portion and the main supporting ribs of the present invention; Figure 5 This is a schematic diagram of the matching structure between the stopper and the first connecting seat of the present invention; Figure 6 This is a diagram of the fixing buckle structure of the present invention; Figure 7 It is the layout diagram of the movable buckles and fixed buckles on the shelf; Figure 8 This is a structural diagram of a first embodiment of a quick-release card holder according to the present invention; Figure 9 This is an enlarged view of the structure of a movable buckle provided in the first embodiment of the quick-release card holder of the present invention; Figure 10 This is a reference diagram of the quick-release card holder embodiment 1 of the present invention in use; Figure 11 This is a structural diagram of a second embodiment of the quick-release card holder of the present invention; Figure 12 This is an enlarged view of the structure of another movable buckle provided in the second embodiment of the quick-release card holder of the present invention.

[0023] In the figure: 1. Main support ribs; 2. First connecting seat; 21. Side panel; 22. Rear side panel; 23. Bottom plate; 24. Connecting assembly; 25. U-shaped slot; 241. Bolt sleeve; 242. Connecting tongue; 3. Rotary arm; 301. Bend; 302. Connecting ear; 303. Handle; 4. Pivot shaft; 5. Long hole; 6. Stopper; 7. Damping strip; 8. Spring; 9. Cylindrical head; 10. Gap; 11. Second connecting seat; 12. L-shaped fixing plate; 13. U-shaped bayonet; 14. Limit plate; 15. Base frame; 1501. Horizontal bar; 1502. Vertical bar; 15011. Left bar body; 15012. Right bar body. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0025] The present invention is suitable for frame-type bicycle racks, which require at least the outer edge of the rack surface to include main support ribs. Figures 1 to 3 The quick-release buckle of the bicycle rack provided by the present invention includes an active buckle assembled at the bottom of the joint mechanism, and the active buckle includes a first connecting seat 2 and a swing arm 3. The first connecting seat 2 is arranged on the upper side of the main support rib 1, and the upper end of the swing arm 3 is rotatably connected to the first connecting seat 2 through a pivot shaft 4. A bent portion 301 is provided at the lower end of the swing arm 3. The bent portion 301 is swung to the lower side of the main support rib 1 through the rotation of the swing arm 3, thereby grabbing the surface of the main support rib 1; the bent portion 301 is separated from the main support rib 1 through the reverse rotation of the swing arm 3.

[0026] By manually turning the swing arm 3 downward, the bent portion 301 moves to the lower side of the main support rib 1, and then the difference between the length of the swing arm 3 and the diameter of the main support rib 1 is used to grab the surface of the main support rib 1, thereby fixing it to the shelf.

[0027] The joint mechanism can be a base at the bottom of a box or bag, or a special base frame for connecting the box or bag with a quick-release buckle.

[0028] The present invention also includes a fixed buckle mounted on the bottom of the joint mechanism and arranged opposite to the movable buckle, such as Figure 6 、 Figure 7 、 Figure 8 The fixing clip is installed on the main support rib 1 on the other side of the bicycle rack. The fixing clip includes a second connecting seat 11 and an L-shaped fixing plate 12. The upper end of the vertical part of the L-shaped fixing plate 12 is fixedly connected to the lower surface of the second connecting seat 11. The L-shaped fixing plate 12 and the lower surface of the second connecting seat 11 form a U-shaped clip 13 for clamping the main support rib 1 on the other side.

[0029] See also Figure 7The movable buckle and the fixed buckle are connected by a joint mechanism to form an integral action system. When in use, first use the fixed buckle to buckle the main support rib 1 on the side away from the operator, and then use the self-movable buckle to buckle the main support rib 1 on the side close to the operator. The installation is convenient and fast.

[0030] As an alternative, see Figure 2 、 Figure 3 The upper end of the arm 3 is symmetrically provided with connecting ears 302, which are movably mounted on the pivot shaft 4. The two ends of the pivot shaft 4 are connected to the first connecting seat 2. The end of the curved portion 301 extends to the other side of the main support rib 1. The back of the curved portion 301 at the lower end of the arm 3 is also fixedly connected to a handle 303, and the lower end of the handle 303 is bent in the direction opposite to the curved portion 301. The surface of the handle 303 can be provided with an anti-slip texture.

[0031] As an option, the connecting ear 302 is convenient for connecting with the pivot shaft 4, the handle 303 is used to facilitate the operation of pushing the swing arm 3 to swing, and the bent portion 301 is used to grab the main support rib 1; Figure 4 In order to effectively grasp the main support rib 1, the wrapping range of the curved portion 301 on the lower part of the main support rib 1 should be greater than 90° and less than 180°. In this embodiment, the curved portion 301 contacts the lower part of the main support rib 1 at least at two points, and the preferred distance between the two points is 110° to 150°.

[0032] As an option, the inner surface of the curved portion 301 is U-shaped, with its two ends abutting against the surface of the main support rib 1, and a gap 10 is reserved between its lowest point and the main support rib 1. Since the bicycle as a whole vibrates during driving, reserving a certain gap 10 between the curved portion 301 and the main support rib 1 is an effective and easy-to-implement way to reduce vibration damage to the quick-release buckle and to reduce shock for the carried object. Specifically, when the shelf vibrates violently, the main support rib 1 jumps in the curved portion 301. Due to the structure of the reserved gap 10, the curved portion 301 buffers the jumping of the main support rib 1 by expanding, so that the vibration of the main support rib 1 is not fully and directly transmitted to the upper end of the swing arm 3, the pivot shaft 4 and the first connecting seat 2, thereby reducing the impact force and vibration amplitude on the quick-release buckle and the carried object connected thereto.

[0033] In this embodiment of the movable buckle, the upper end of the swing arm 3 is movably connected to the first connecting seat 2 via a pivot shaft 4. During installation, the curved portion 301 naturally hangs below the first connecting seat 2, so the main support rib 1 of the curved portion 301 enters between the curved portion 301 and the first connecting seat 2. To facilitate installation, this embodiment provides a solution: a guide slope (not shown) is provided on the outer surface of the curved portion 301. The guide slope slopes upward from the base of the curved portion 301 to the end of the curved portion 301. When the inclined surface of the guide slope collides with the main support rib 1, the downward movement of the movable buckle is converted into outward movement, thereby causing the swing arm 3 to rotate outward, and the main support rib 1 to enter the inner side of the curved portion. Then, a light press on the swing arm 3 locks it.

[0034] As an improvement to the aforementioned movable buckle, the first connecting base 2 has an internal mounting cavity. The two side panels 21 of the mounting cavity contain elongated holes 5 for mounting the pivot shaft 4. A spring 8 is installed within the mounting cavity, its lower end connected to the mounting cavity floor 23 and its upper end connected to a stopper 6. In this embodiment, the elongated hole 5 allows the pivot shaft 4 to move up and down, and the spring 8 supports the height of the pivot shaft 4 within the elongated hole 5. When the curved portion 301 moves to the underside of the main support rib 1, the curved portion 301 drives the pivot shaft 4 downward, which in turn compresses the stopper 6, causing the reaction force of the spring 8 to lift the curved portion 301 upward. The spring 8 enables the movable buckle to grip main support ribs 1 of varying diameters.

[0035] See also Figure 5 In order to ensure the installation stability of the spring 8, a cylindrical head 9 is provided on the opposite surface of the bottom plate 23 and the stopper 6, and the ring opening at the end of the spring 8 is tightly fitted with the cylindrical head 9.

[0036] During the movement of the swing arm 3, the swing arm 3 rotates around the pivot shaft 4 and exerts a downward pull on the pivot shaft 4. The pivot shaft 4 is subjected to a tangential force, which easily drives the stopper 6 to deflect. If the stopper 6 deflects, the spring 8 is likely to disengage. To avoid this situation, see Figure 5 The solution provided by the present invention is: the pivot shaft 4 passes through the central axis position of the stopper 6, and the rear end face of the stopper 6 is in surface contact with the inner wall of the first connecting seat 2; in this structure, the distance from the midpoint of the rear end face of the stopper 6 to the center line of the pivot shaft 4 is equal to the distance L from the pivot shaft 4 to the surface of the base 15, and the distances between the upper and lower edges of the rear end face of the stopper 6 and the center of the pivot shaft 4 are both greater than L. When the stopper 6 rotates with the pivot shaft 4, it is restricted by the upper edge or the lower edge, so that the stopper 6 can only move up and down.

[0037] See also Figure 2As an embodiment of the first connecting seat 2, the first connecting seat 2 is a box body, and a connecting assembly 24 for connecting the joint mechanism is provided on the surface of the box body; a U-shaped card slot 25 is provided at the bottom of the box body, and the U-shaped card slot 25 is buckled on the upper surface of the main support rib 1. The U-shaped card slot 25 makes the movable buckle more stable and not easy to tilt after it falls on the main support rib 1. At the same time, its lower edge is connected to the curved part to avoid disengagement. The connecting assembly 24 includes a bolt sleeve 241 and a connecting tongue 242. The bolt sleeve 241 is integrally fixed to the surface of the first connecting seat 2; at the top of the first connecting seat 2, the connecting tongue 242 is also fixed on the opposite side of the bolt sleeve 241. Bolts are installed in the bolt sleeve 241 for connecting to the base frame 15 or the base of the bag. The connecting tongue 242 is inserted into the base frame or base to prevent displacement.

[0038] For further information, see Figure 8 A damping strip 7 is provided on the side of the first connecting seat 2 where it contacts the swing arm 3. The surface of the damping strip 7 is in frictional contact with the surface of the swing arm 3. The damping strip 7 creates a stagnant effect when the swing arm 3 rotates through friction, allowing the swing arm 3 to stop at any height after losing human power. Specifically, before the movable buckle is installed on the rack, the swing arm 3 is first rotated upward. The damping strip 7 structure allows the swing arm 3 to remain in this "upward" position. After the first connecting seat 2 is placed on the main support rib 1, the swing arm 3 is manually pushed downward to lock the movable buckle. Conversely, to unlock the rack, the swing arm 3 must be rotated upward, allowing the movable buckle to be raised. At this point, the loaded object can be directly lifted and separated from the bicycle rack along with the movable buckle and fixed clip. If there is no damping strip 7, after unlocking, if the hand leaves the handle 303, the swing arm 3 will sag under its own weight, and part of the curved portion 301 will hook onto the main support rib 1 again, hindering the lifting of the loaded object.

[0039] Under this design concept, the present invention also provides a quick-release card holder for a bicycle rack, including a base frame 15 for assembling a movable card buckle, or a movable card buckle and a fixed card buckle, see Figure 8 、 Figure 10 The base frame 15 can be optionally a U-shaped structure, which is composed of two front and rear horizontal bars 1501 and two left and right longitudinal bars 1502, and the two ends of the horizontal bar 1501 are protruding from the ends of the longitudinal bars 1502.

[0040] The upper side of the base frame 15 is provided with the object to be carried, which may be a box, a basket or a backpack. The base frame 15 may be manufactured as a light structure, that is, the interior of the rod body is provided with a hollow cavity, and reinforcement plates are evenly arranged in the hollow cavity for support. Figure 11Crossbar 1501 can also be provided with a retractable structure. Specifically, crossbar 1501 is composed of a left rod body 15011 and a right rod body 15012. Bolt holes are provided on the surfaces of left and right rod bodies 15011 and 15012. A center rod is inserted into the rod body, and the lower end of the bolt is installed in the bolt hole and abuts against the center rod. This allows the present invention to be applied to shelves of varying widths. Of course, base frame 15 is not limited to the above-mentioned rod frame structure and can also adopt a plate-type structure. The retractability is not limited to horizontal retractability and can also be configured to be longitudinal retractable. Longitudinal retractability can be applied to shelves of varying lengths.

[0041] Based on the above-mentioned base frame 15, an embodiment of the movable buckle is as follows: See also Figure 8 、 Figure 9 The first connecting seat 2 has a rear side plate 22 on the side of the base frame 15, and two side panels 21 are symmetrically arranged based on the rear side plate 22. The lower ends of the two side panels 21 are fixed to the bottom plate 23, and the rear side plate 22, the side panels 21 and the bottom plate 23 form an installation cavity.

[0042] Based on the above-mentioned base frame 15, another embodiment of the movable buckle is as follows: See also Figure 11 、 Figure 12 The first connecting seat 2 is a box-shaped structure with an open top. The box-shaped structure has a side wall of the longitudinal rod 1502 as its rear side plate 22. The pivot shaft 4 passes through the first connecting seat 2, and the end of the pivot shaft 4 extending outside the box-shaped structure is used to install the swing arm 3.

[0043] In the aforementioned latch structure, the first connection base 2 of the movable latch is located above the main support rib 1, while the curved portion 301 of the swing arm 3 is located below the main support rib 1. This prevents the main support rib 1 from disengaging from the movable latch when the bicycle vibrates up and down. However, the swing arm 3 lacks a rigid retaining structure for rotation. If the main support rib 1 moves left or right in the locked state, this could easily push the swing arm 3 back, causing it to rotate and disengage. To prevent this, one side of the movable latch at the bottom of the base frame 15 is fixedly connected to a limit plate 14, which contacts the side of the main support rib 1 away from the swing arm 3.

[0044] Optionally, the movable buckle is provided at one end of the crossbar 1501, and the fixed buckle is provided at the other end; the second connecting seat 11 is integrally formed with the other end of the crossbar 1501, and the L-shaped fixing plate 12 is fixed to the underside of the crossbar 1501. During operation, the base frame 15 is tilted as a whole, the U-shaped buckle is fastened to the main support rib 1 on the side away from the operator, and then the base frame 15 is leveled and the movable buckle on the near side is operated to lock. The combination of the movable buckle and the fixed buckle provides greater stability and is easier to install. A limit plate 14 is provided on the side of the movable buckle, and the vertical part of the L-shaped fixing plate 12 acts as the limit plate 14. When the card seat is installed, the limit plate 14 is inserted into the inner side of the left and right main support ribs 1. After the swing arm 3 locks the shelf, when the bicycle rack moves to the left due to vibration, it is constrained by the right limit plate 14 (and the L-shaped fixing plate 12). The displacement impact force is transmitted to the entire base frame 15 through the right limit plate 14, and the base frame 15 also moves to the left. Therefore, the insufficient displacement of the left main support rib 1 causes a reverse push on the left swing arm 3, and the force principle on the right side is the same.

[0045] Optionally, the movable buckles are symmetrically arranged on the outside of the two longitudinal bars 1502. The movable buckles on both sides can be locked or unlocked simultaneously. Since both movable buckles are highly tolerant to the thickness and spacing of the main support ribs 1, they can be installed on different bicycle racks with slightly different widths, and can also be fixed to metal frames with variable spacing.

[0046] Optionally, a belay groove is provided at the outer end of the bottom plate 23 , the width of the belay groove matches the width of the swing arm 3 , and the depth of the belay groove is 1 mm to 2 mm. When the movable buckle is locked, the belay groove can limit the shaking of the swing arm 3 .

[0047] The quick-release buckle and quick-release holder of the present invention are not limited to being installed on bicycle racks, but can also be used on frame structures similar to those made of pipes and ribs; the main support rib 1 can be a solid metal rod or tube body such as aluminum, alloy, or steel, preferably with a circular cross-section.

[0048] Beneficial effects of the present invention: 1) The present invention provides a clip that can be used independently or fixed on a base frame for combined use. The independent clip can be directly connected to a carried object (such as a basket) that has its own base, and the position and number can be arbitrarily selected; it is not limited to accommodating and fixing baskets and the like on bicycle racks; 2) The swing arm is locked or unlocked by rotation, which saves effort; 3) The swing arm and the connecting seat are frictionally engaged, so that the swing arm can stop at any raised height, avoiding the swing arm from buckling onto the main support rib after the hand is released, which affects the removal of items from the shelf; 4) The elastic tensioning structure of the swing arm of the present invention enables the bending portion to adapt to main support ribs of different thicknesses; 5) The base frame of the present invention is retractable and can be used on shelves of different sizes.

[0049] In summary, the quick-release buckle and quick-release card holder provided by the present invention have the advantages of short unlocking time, labor-saving operation, and no requirements for the shelf structure.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made using the contents of the present invention specification and its drawings are included in the scope of the present invention.

Claims

1. A quick-release buckle for a bicycle rack, wherein the outer edge of the bicycle rack disk includes a main support rib (1), characterized in that: The quick-release buckle comprises an active buckle assembled at the bottom of the joint mechanism, the active buckle comprises a first connecting seat (2) and a swing arm (3), the first connecting seat (2) is arranged on the upper side of the main support rib (1), the upper end of the swing arm (3) is rotatably connected to the first connecting seat (2) via a pivot shaft (4), and a bent portion (301) is provided at the lower end of the swing arm (3), the bent portion (301) swings to the lower side of the main support rib (1) through the rotation of the swing arm (3), thereby grabbing the surface of the main support rib (1); the bent portion (301) is separated from the main support rib (1) through the reverse rotation of the swing arm (3).

2. The quick-release buckle of the bicycle rack according to claim 1, characterized in that: The upper end of the rotary arm (3) is symmetrically provided with a connecting ear (302), which is movably mounted on the pivot shaft (4), and the two ends of the pivot shaft (4) are connected to the first connecting seat (2); the end of the bent portion (301) extends to the other side of the main support rib (1); the back of the bent portion (301) is also fixedly connected to a handle (303), and the lower end of the handle (303) is bent in the opposite direction to the bent portion (301).

3. The quick-release buckle of the bicycle rack according to claim 1, characterized in that: The curved portion (301) has at least two points in contact with the lower portion of the main support rib (1), and the distance between the two points is 110° to 150°.

4. The quick-release buckle of the bicycle rack according to claim 1, characterized in that: The inner surface of the curved portion (301) is U-shaped, with both ends abutting against the surface of the main support rib (1), and a gap (10) is reserved between the lowest point and the main support rib (1).

5. The quick-release buckle of the bicycle rack according to claim 1, characterized in that: A guide slope is provided on the lower end surface of the rotary arm (3), and the guide slope is inclined upward from the root of the curved portion (301) to the end of the curved portion (301).

6. The quick-release buckle of the bicycle rack according to claim 1, characterized in that: A mounting cavity is provided inside the first connecting seat (2), and the holes for mounting the pivot shaft (4) on the panels (21) on both sides of the mounting cavity are long holes (5); a spring (8) is installed in the mounting cavity, and the lower end of the spring (8) is connected to the bottom plate (23) of the mounting cavity, and the upper end is connected to the stopper (6).

7. The quick-release buckle of the bicycle rack according to claim 1, characterized in that: The first connecting seat (2) is a box body, and a connecting assembly (24) for connecting the combined mechanism is provided on the surface of the box body; a U-shaped card slot (25) is provided at the bottom of the box body, and the U-shaped card slot buckle (25) is installed on the upper surface of the main support rib (1).

8. The quick-release buckle of the bicycle rack according to claim 1, characterized in that: A damping strip (7) is provided on the side surface of the first connecting seat (2) that matches the swing arm (3), and the surface of the damping strip (7) is in frictional contact with the swing arm (3).

9. The quick-release buckle of the bicycle rack according to claim 6, characterized in that: The pivot shaft (4) passes through the center axis of the stopper (6), and the rear end surface of the stopper (6) is in surface contact with the inner wall of the first connecting seat (2).

10. The quick-release buckle of the bicycle rack according to claim 1, characterized in that: The invention also includes a fixed buckle assembled at the bottom of the joint mechanism and arranged opposite to the movable buckle, the fixed buckle is installed on the main support rib (1) on the other side of the shelf, the fixed buckle includes a second connecting seat (11) and an L-shaped fixing plate (12), the upper end of the vertical portion of the L-shaped fixing plate (12) is fixedly connected to the lower surface of the second connecting seat (11), and the L-shaped fixing plate (12) and the lower surface of the second connecting seat (11) enclose a U-shaped bayonet (13) for clamping the main support rib (1) on the other side.

11. A quick-release holder for a bicycle rack, characterized by: The invention comprises a base frame (15) for assembling the quick-release buckle according to claim 10, wherein the base frame (15) is a U-shaped structure, which is composed of two front and rear horizontal bars (1501) and two left and right longitudinal bars (1502), and the two ends of the horizontal bar (1501) are protruding from the ends of the longitudinal bars (1502), and the horizontal bar (1501) and / or the longitudinal bar (1502) are configured as a retractable structure.

12. The quick-release holder of the bicycle rack according to claim 11, characterized in that: One side of the movable buckle provided at the bottom of the base frame (15) is fixedly connected to the limit plate (14), and the limit plate (14) contacts the side of the main support rib (1) away from the swing arm (3).

13. The quick-release holder of the bicycle rack according to claim 11, characterized in that: The movable buckle is provided at one end of the cross bar (1501), and the fixed buckle is provided at the other end; the first connecting seat (2) uses the end surface of the cross bar (1501) as its rear side plate (22), and two side panels (21) are symmetrically provided based on the rear side plate (22), the lower ends of the two side panels (21) are fixedly connected to the bottom plate (23), and the rear side plate (22), the side panels (21) and the bottom plate (23) form a mounting cavity; the second connecting seat (11) and the other end of the cross bar (1501) are made into one piece, and the L-shaped fixing plate (12) is fixedly connected to the lower side of the cross bar (1501).

14. The quick-release holder of a bicycle rack according to claim 11, characterized in that: The movable buckles are symmetrically arranged on the outside of the two longitudinal rods (1502); the first connecting seat (2) is a box-shaped structure with an open top, the box-shaped structure has the side walls of the longitudinal rods (1502) as its rear side panels (22), the pivot shaft (4) passes through the first connecting seat (2), and the end of the pivot shaft (4) extending outside the box-shaped structure is used to install the swing arm (3).

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