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

Abstract

The utility model 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 assembled at the bottom of a combined mechanism, 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, and the rotating arm is arranged on the first connecting seat. The upper end of the rotating arm is rotationally connected with the first connecting seat through a pivoting shaft, and a bent part is arranged at the lower end of the rotating arm and swings to the lower side of the main supporting rib through rotation of the rotating arm so as to be grabbed and 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 used for being assembled with a movable buckle. 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] This utility model belongs to the field of bicycle technology, specifically relating to a quick-release buckle and quick-release bracket for a bicycle rack. Background Technology

[0002] Bicycles and electric bikes typically have a basket in the front and a shelf in the back. The basket is generally used to hold small items, while the shelf is used to support heavier or larger items. Traditionally, bags and other items are secured to the shelf with straps. However, in the present technology, to provide stability between the load and the shelf, as well as to facilitate installation and disassembly, a connection device for storing items and connecting to the shelf has been developed.

[0003] Reference 1: Utility model patent number CN201310593833.9, application date November 22, 2013, publication number CN103552629A, specifically discloses a bicycle rack bag buckle structure, including a bag body, a carrier, and a buckle assembly for installing the carrier on the bicycle rack. The buckle assembly includes a female hook block and a female connecting block, which are connected to each other. The female hook block has a connecting section protruding from the female connecting block, and the female connecting block has a connecting hole through the connecting section. The female hook block has an arc hook portion extending along the direction of the bicycle rack, which hooks onto the bicycle rack. A screw locking kit is also provided, which is locked onto the buckle assembly. This utility model fixes the carrier onto the bicycle rack by locking the screw locking kit onto the buckle assembly.

[0004] Reference 2: Utility model patent number 202020753508.X, application date May 9, 2020, authorization announcement number CN212290120U, discloses a quick-release structure for a bicycle basket or bag, including a base and a movable buckle. The base has symmetrically arranged limiting parts for cooperating with a rack. One limiting part has an integrally formed latch for locking a first part at one end of the bicycle rack. The other limiting part is slidably connected to the movable buckle via a spring. The inner side of the movable buckle and the base together lock a second part at the other end of the bicycle rack. A handle is provided on the outer side of the movable buckle. This solution provides sufficient clearance by pulling the movable buckle outward with the handle, allowing it to fall to the outside of the second part and lock the second part with the spring, or by using the weight of the load on the base to force the movable buckle to move outward briefly and then lock the second part.

[0005] The existing technology has the following drawbacks: 1) In Reference 1, the female hook block and the female connecting block need to be reinforced with bolts to ensure the reliability of the carrier locking with the shelf. When unlocking this structure, the bolts need to 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, when unlocking this solution, the operator needs to keep pulling the handle outward. If the hand cannot hold the handle, the movable buckle will automatically re-lock and lock again. At the same time, this solution requires the shelf to be customized to be compatible with the quick-release structure, resulting in poor compatibility and inability to be used for other types of shelves, thus limiting its application range. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a connection device that does not require a specific shelf structure.

[0007] The technical solution adopted by this utility model to solve the aforementioned problem is:

[0008] A quick-release buckle for a bicycle rack includes a main support rib on the outer edge of the rack's tray. The quick-release buckle includes a movable buckle mounted on the bottom of a combined mechanism. The movable buckle includes a first connecting seat and a rotating arm. The first connecting seat is located on the upper side of the main support rib. The upper end of the rotating arm is rotatably connected to the first connecting seat via a pivot shaft. The lower end of the rotating arm has a bent portion. The bent portion swings to the lower side of the main support rib by rotating the rotating arm, thereby gripping the surface of the main support rib. The bent portion separates from the main support rib by rotating the rotating arm in the opposite direction.

[0009] Compared with the prior art, the advantages of this utility model with the above structure are:

[0010] 1) Based on the common characteristics of common bicycle rack structures, this utility model provides a connecting device that connects to the basic structure of a bicycle rack, eliminating the need for a dedicated, matching bicycle rack. 2) The movable buckle of this utility model, through the rotation of the rotating arm, causes the bent part to engage with the main support rib of the bicycle rack. The connecting seat then connects the rack to the load. The bent part has a certain tolerance for the thickness of the main support rib, thus this utility model is applicable to various bicycle racks and has a wider range of uses. 3) The rotation of the rotating arm enables locking and unlocking, making operation convenient.

[0011] As a preferred option, a further technical solution to the above structure is:

[0012] As an alternative, the upper end of the rotating arm is symmetrically provided with connecting ears, which are movably fitted onto the pivot shaft, and both ends of the pivot shaft are connected to the first connecting seat; the end of the curved part extends to the other side of the main support rib; a handle is also fixed to the back of the curved part, and the lower end of the handle is bent in the opposite direction to the curved part.

[0013] As an improvement, the first connecting seat has an internal mounting cavity. The holes on the side panels of the mounting cavity for mounting the pivot shaft are elongated holes. A spring is installed inside the mounting cavity. The lower end of the spring is connected to the bottom plate of the mounting 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 mounting cavity.

[0014] Alternatively, the first connecting seat is a box, the surface of which is provided with connecting components for connecting the joint mechanism; the bottom of the box is provided with a U-shaped slot, which is fastened to the upper surface of the main support rib.

[0015] As an alternative, a fixed buckle is also included, which is mounted on the bottom of the combined mechanism and is positioned opposite to the movable buckle. The fixed buckle is installed on the main support rib on the other side of the shelf. The fixed buckle includes a second connecting seat and an L-shaped locking plate. The upper end of the vertical part of the L-shaped locking plate is fixed to the lower surface of the second connecting seat. The L-shaped locking plate and the lower surface of the second connecting seat form a U-shaped bayonet for locking the main support rib on the other side.

[0016] To solve the aforementioned problem, this utility model also provides a quick-release bracket for a bicycle rack, the specific solution of which is as follows:

[0017] A quick-release bracket for a bicycle rack includes a base frame for assembling movable clips, or assembling movable clips and fixed clips. The base frame has an A-shaped structure, consisting of two front and rear horizontal bars and two left and right vertical bars. The two ends of the horizontal bars protrude from the ends of the vertical bars, and the horizontal bars and / or vertical bars are configured as telescopic structures.

[0018] Compared with the prior art, the advantages of this utility model with the above structure are:

[0019] 1) This card holder structure integrates multiple quick-release cards into one unit through the base frame, so that the multiple buckles form a mutual force connection, thereby making the connection strength between each of them and the bicycle rack higher; 2) The base frame structure makes it easier to connect with the load-bearing object and reinforces the bottom of the load-bearing object. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the movable buckle of this utility model;

[0021] Figure 2 This is an exploded view of the structure of the movable buckle of this utility model;

[0022] Figure 3 This is a structural example diagram of the rotary arm of this utility model;

[0023] Figure 4 This is a schematic diagram of the bend and the main support rib of this utility model.

[0024] Figure 5This is a schematic diagram of the cooperation structure between the stop block and the first connecting seat of this utility model;

[0025] Figure 6 This is a structural diagram of the fixing buckle of this utility model;

[0026] Figure 7 This is a diagram showing the arrangement of movable and fixed clips on the shelf;

[0027] Figure 8 This is a structural diagram of one embodiment of the quick-release card holder of this utility model;

[0028] Figure 9 This is an enlarged view of the structure of a movable buckle in Embodiment 1 of the quick-release card holder of this utility model;

[0029] Figure 10 This is a reference diagram showing the usage state of Embodiment 1 of the quick-release card holder of this utility model;

[0030] Figure 11 This is a structural diagram of Embodiment 2 of the quick-release card holder of this utility model;

[0031] Figure 12 This is an enlarged view of the structure of another movable buckle in Embodiment 2 of the quick-release buckle of this utility model.

[0032] In the diagram: 1. Main support reinforcement;

[0033] 2. First connecting seat; 21. Side panel; 22. Rear side panel; 23. Base plate; 24. Connecting assembly; 25. U-shaped slot; 241. Bolt sleeve; 242. Connecting tongue;

[0034] 3. Rotary arm; 301. Bend; 302. Connecting lug; 303. Handle;

[0035] 4. Pivot shaft; 5. Elongated hole; 6. Stop block; 7. Damping strip; 8. Spring; 9. Cylindrical head; 10. Clearance; 11. Second connecting seat; 12. L-shaped locking plate; 13. U-shaped bayonet; 14. Limiting plate;

[0036] 15. Base frame; 1501. Horizontal bar; 1502. Vertical bar; 15011. Left bar; 15012. Right bar. Detailed Implementation

[0037] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0038] This utility model is suitable for frame-type bicycle racks, requiring at least that the outer edge of the rack tray includes main support ribs. For details, see [link to details]. Figures 1 to 12The quick-release buckle for the bicycle rack provided by this utility model includes a movable buckle assembled at the bottom of the combined mechanism. The movable buckle includes a first connecting seat 2 and a rotating arm 3. The first connecting seat 2 is disposed on the upper side of the main support rib 1. The upper end of the rotating arm 3 is rotatably connected to the first connecting seat 2 through a pivot shaft 4. The lower end of the rotating arm 3 is provided with a bent part 301. The bent part 301 swings to the lower side of the main support rib 1 by the rotation of the rotating arm 3, thereby grabbing the surface of the main support rib 1. The bent part 301 separates from the main support rib 1 by the reverse rotation of the rotating arm 3.

[0039] By manually turning the rotating arm 3 downwards, the bent part 301 moves to the lower side of the main support rib 1 and then uses the difference between the length of the rotating arm 3 and the diameter of the main support rib 1 to grab and fasten it to the surface of the main support rib 1, thereby fixing it to the shelf.

[0040] The connecting mechanism can be a base at the bottom of the case or bag, or a special base frame for connecting the case or bag with the quick-release buckle.

[0041] This utility model also includes a fixed buckle assembled at the bottom of the combined 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 bicycle rack. The fixed buckle includes a second connecting seat 11 and an L-shaped locking plate 12. The upper end of the vertical part of the L-shaped locking plate 12 is fixed to the lower surface of the second connecting seat 11. The L-shaped locking plate 12 and the lower surface of the second connecting seat 11 form a U-shaped bayonet 13 for locking the main support rib 1 on the other side.

[0042] See Figure 7 The movable and fixed buckles are connected by a joint mechanism to form an integrated working system. When in use, the fixed buckle is first used to fasten the main support rib 1 on the side away from the operator, and then the movable buckle is used to fasten the main support rib 1 on the side closer to the operator. The installation is convenient and fast.

[0043] Alternatively, the upper end of the rotating arm 3 is symmetrically provided with connecting ears 302, which are movably fitted onto the pivot shaft 4. Both 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. A handle 303 is also fixedly connected to the back of the curved portion 301 at the lower end of the rotating arm 3. The lower end of the handle 303 is bent in the opposite direction to the curved portion 301. The surface of the handle 303 may be provided with an anti-slip texture.

[0044] As an alternative, the connecting ear 302 facilitates connection with the pivot shaft 4, the handle 303 facilitates operation to push the rotating arm 3 to swing, and the curved part 301 is used to grip the main support rib 1. In order to effectively grip the main support rib 1, the curved part 301 should wrap around the lower part of the main support rib 1 with an angle greater than 90° and less than 180°. In this embodiment, the curved part 301 has at least two points in contact with the lower part of the main support rib 1, and the preferred distance between the two points is 110° to 150°.

[0045] As an alternative, 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 reserved between its lowest point and the main support rib 1. Since the bicycle vibrates as a whole during operation, leaving a certain gap 10 between the curved portion 301 and the main support rib 1 is an effective and easily implemented way to reduce vibration damage to the quick-release buckles and to dampen the load. Specifically, when the shelf vibrates violently, the main support rib 1 jumps within 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, thus preventing all and directly transmitting the vibration of the main support rib 1 to the upper end of the swivel arm 3, the pivot shaft 4, and the first connecting seat 2, thereby reducing the impact force and vibration amplitude on the quick-release buckles and the load connected to them.

[0046] As an improvement to the aforementioned movable buckle, the first connecting seat 2 has an internal mounting cavity. On the side panels 21 of the mounting cavity, there are elongated holes 5 for mounting the pivot shaft 4. A spring 8 is installed inside the mounting cavity, with its lower end connected to the bottom plate 23 of the mounting cavity and its upper end connected to the stop block 6. In this embodiment, the elongated holes 5 allow the pivot shaft 4 to move up and down. The spring 8 supports the height of the pivot shaft 4 within the elongated holes 5. When the bent part 301 moves to the lower side of the main support rib 1, the bent part 301 causes the pivot shaft 4 to move downwards. The pivot shaft 4 then compresses the spring 8, and the reaction force of the spring 8 lifts the bent part 301 upwards. The spring 8 enables the movable buckle to grip main support ribs 1 of different diameters.

[0047] To ensure the stability of the spring 8 during installation, cylindrical heads 9 are provided on the opposing surfaces of the base plate 23 and the stop block 6, and the ring at the end of the spring 8 is tightly fitted with the cylindrical head 9.

[0048] During the movement of the rotating arm 3, the rotating 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 can easily cause the stop block 6 to deflect. If the stop block 6 deflects, the spring 8 can easily disengage. To avoid this situation, see... Figure 5 The solution provided by this utility model is as follows: the pivot shaft 4 passes through the central axis of the stop block 6, and the rear end face of the stop block 6 is in surface contact with the inner wall of the first connecting seat 2; in this structure, the distance from the high midpoint of the rear end face of the stop block 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 frame 15, and the distance between the upper and lower edges of the rear end face of the stop block 6 and the center of the pivot shaft 4 is greater than L. When the stop block 6 rotates with the pivot shaft 4, it is restricted by the upper or lower edge, so that the stop block 6 can only move up and down.

[0049] As one embodiment of the first connecting seat 2, the first connecting seat 2 is a box body. The surface of the box body is provided with a connecting component 24 for connecting the joint mechanism. The bottom of the box body is provided with a U-shaped slot 25, which is fastened to the upper surface of the main support rib 1. The U-shaped slot 25 makes the movable buckle more stable and less prone to tilting after it falls on the main support rib 1. At the same time, its lower edge connects with the curved part to prevent unlocking. The connecting component 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. The connecting tongue 242 is also fixed to the opposite side of the bolt sleeve 241 at the top of the first connecting seat 2. A bolt is installed in the bolt sleeve 241 for connection with 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.

[0050] Further, see Figure 8 A damping strip 7 is provided on the side of the first connecting seat 2 that contacts the rotating arm 3. The surface of the damping strip 7 makes frictional contact with the surface of the rotating arm 3. The damping strip 7 creates a resistance effect when the rotating arm 3 rotates due to friction, so that the rotating arm 3 can stop at any height after manual pushing. Specifically, before the movable buckle needs to be installed on the shelf, the rotating arm 3 first rotates upward. Due to the structure of the damping strip 7, the rotating arm 3 can stop in this "upward" state. After the first connecting seat 2 is placed on the main support rib 1, manually pushing the rotating arm 3 downward will lock the movable buckle. Conversely, to unlock, the rotating arm 3 needs to be rotated upward, and the movable buckle can be lifted. At this time, the load can be lifted directly, and the movable buckle and the fixing clip can be separated from the bicycle rack together. Without the damping strip 7, after unlocking, when the hand leaves the handle 303, the rotating arm 3 will sag under its own weight, and part of the bent part 301 will hook onto the main support rib 1 again, hindering the lifting of the load.

[0051] Based on this design concept, this utility model also provides a quick-release bracket for a bicycle rack, including a base frame 15 for assembling movable clips, or movable clips and fixed clips, see [link to relevant documentation]. Figure 8 , Figure 10 The base frame 15 can be a U-shaped structure, which consists of two front and rear horizontal bars 1501 and two left and right vertical bars 1502. The two ends of the horizontal bars 1501 protrude from the ends of the vertical bars 1502.

[0052] The load-bearing object, such as a box, basket, or backpack, is mounted on the upper side of the base frame 15. The base frame 15 can be manufactured as a lightweight structure, meaning the inside of the poles has a hollow cavity with evenly distributed reinforcing plates for support. Optionally, the crossbar 1501 can also have a telescopic structure. Specifically, the crossbar 1501 consists of two parts: a left pole 15011 and a right pole 15012. Bolt holes are provided on the surfaces of the left pole 15011 and the right pole 15012, and a central pole is fitted inside the pole. Bolts are installed in the bolt holes, with their lower ends abutting against the central pole. This allows the invention to be applied to shelves of different widths. Of course, the base frame 15 is not limited to the above-mentioned pole structure; it can also be a plate structure. The telescopic design is not limited to lateral telescopic extension; it can also be longitudinal telescopic, which is suitable for shelves of different lengths.

[0053] Based on the aforementioned base frame 15, one embodiment of the movable buckle is as follows:

[0054] The first connecting seat 2 has a base frame 15 and a rear side plate 22. 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. The rear side plate 22, the side panels 21 and the bottom plate 23 form an installation cavity.

[0055] Another embodiment of the movable buckle based on the aforementioned base frame 15:

[0056] The first connecting seat 2 is a box-shaped structure with an open top. The box-shaped structure has its rear side plate 22 with the side wall of the longitudinal rod 1502. The pivot shaft 4 passes through the first connecting seat 2, and the end of the pivot shaft 4 that extends out of the box-shaped structure is used to install the rotating arm 3.

[0057] In the aforementioned card holder structure, the first connecting seat 2 of the movable buckle is located on the upper side of the main support rib 1, and the bent part 301 of the rotating arm 3 is located on the lower side of the main support rib 1. When the bicycle vibrates up and down, the main support rib 1 will not disengage from the movable buckle. However, the rotating arm 3 is not designed with a rigid positioning structure for rotation. In the locked state, if the main support rib 1 moves left and right, it is easy to push the rotating arm 3 to rotate, thereby disengaging it. To avoid this situation, a limiting plate 14 is fixedly connected to the side of the base frame 15 where the movable buckle is located. The limiting plate 14 contacts the side of the main support rib 1 away from the rotating arm 3.

[0058] Optionally, one end of the crossbar 1501 is provided with the movable buckle, and the other end is provided with the fixed buckle; the second connecting seat 11 is integrally formed with the other end of the crossbar 1501, and the L-shaped locking plate 12 is fixed to the lower side of the crossbar 1501. During operation, the base frame 15 can be tilted as a whole first, the U-shaped buckle can be fastened to the main support rib 1 on the side away from the operator, then the base frame 15 can be leveled, and the movable buckle on the side closest to the operator can be locked. The combination of movable and fixed buckles provides better stability and is easier to install.

[0059] A limiting plate 14 is set on the side of the movable buckle. The vertical part of the L-shaped locking plate 12 is equivalent to the function of the limiting plate 14. When the buckle is installed, the limiting plate 14 is inserted into the inside of the two main support ribs 1 on the left and right. After the rotating arm 3 locks the shelf, when the bicycle shelf moves to the left due to vibration, it is constrained by the right limiting plate 14 (and the L-shaped locking plate 12). The displacement impact force is transmitted to the entire base frame 15 through the right limiting 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 counter-push to the left rotating arm 3. The force principle on the right is the same.

[0060] Optionally, the movable buckles are symmetrically arranged on the outer sides of the two longitudinal bars 1502. The movable buckles on both sides can be locked or unlocked simultaneously. Since both movable buckles have a high tolerance for 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.

[0061] Optionally, the outer end of the base plate 23 is provided with a groove, the width of which matches the width of the rotating arm 3, and the depth of which is 1mm to 2mm. When the movable buckle is locked, the groove can limit the swaying of the rotating arm 3.

[0062] The quick-release buckle and quick-release bracket of this utility model are not limited to installation on bicycle racks, but can also be used on frame structures similar to those made of tubes and ribs; the main support rib 1 can be a solid metal rod or tube made of aluminum, alloy, steel or other materials, preferably with a circular cross-section.

[0063] The beneficial effects of this utility model are:

[0064] 1) This utility model provides a buckle that can be used independently or fixed to a base frame for combined use. The independent buckle can be directly connected to the load-bearing object (such as a basket) with its own base, and the position and quantity can be selected arbitrarily; it is not limited to using baskets or the like to accommodate and fix them to bicycle racks; 2) The rotating arm is controlled by rotation to lock or unlock, making operation effortless; 3) The rotating arm and the connecting seat are in frictional cooperation, allowing the rotating arm to stop at any upward height, preventing it from being hooked back onto the main support rib after the hand is removed, thus affecting the removal of items from the shelf; 4) The elastic tie structure of the rotating arm of this utility model allows the bending part to adapt to main support ribs of different thicknesses; 5) The base frame of this utility model is telescopic and can be used for shelves of different sizes.

[0065] In summary, the quick-release buckle and quick-release bracket provided by this utility model have the advantages of short unlocking time, labor-saving operation, and no requirements on the shelf structure.

[0066] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A quick-release buckle for a bicycle rack, wherein the outer edge of the bicycle rack tray includes a main support rib (1), characterized in that: The quick-release buckle includes a movable buckle mounted at the bottom of the combined mechanism. The movable buckle includes a first connecting seat (2) and a rotating arm (3). The first connecting seat (2) is located on the upper side of the main support rib (1). The upper end of the rotating arm (3) is rotatably connected to the first connecting seat (2) through a pivot shaft (4). The lower end of the rotating arm (3) is provided with a bent part (301). The bent part (301) swings to the lower side of the main support rib (1) through the rotation of the rotating arm (3), thereby grabbing the surface of the main support rib (1). The bent part (301) separates from the main support rib (1) through the reverse rotation of the rotating arm (3).

2. The quick-release buckle of the bicycle rack according to claim 1, characterized in that: It also includes a fixed buckle mounted on the bottom of the combined 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 locking plate (12). The upper end of the vertical part of the L-shaped locking plate (12) is fixed to the lower surface of the second connecting seat (11). The L-shaped locking plate (12) and the lower surface of the second connecting seat (11) form a U-shaped bayonet (13) for locking the main support rib (1) on the other side.

3. The quick-release buckle of the bicycle rack according to claim 1, characterized in that: The end of the curved portion (301) extends to the other side of the main support rib (1); a handle (303) is also fixed to the back of the curved portion (301), and the lower end of the handle (303) is bent in the opposite direction to the curved portion (301).

4. The quick-release buckle of the bicycle rack according to claim 1, characterized in that: The first connecting seat (2) has an installation cavity inside. On the two side panels (21) of the installation cavity, the holes for installing the pivot shaft (4) are elongated holes (5). A spring (8) is installed in the installation cavity. The lower end of the spring (8) is connected to the bottom plate (23) of the installation cavity, and the upper end is connected to the stop block (6).

5. 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 the surface of the box body is provided with a connecting component (24) for connecting the joint mechanism; the bottom of the box body is provided with a U-shaped slot (25), and the U-shaped slot (25) is fastened to the upper surface of the main support rib (1).

6. A quick-release bracket for a bicycle rack, characterized in that: Includes a base frame (15) for assembling the quick-release buckle as described in claim 1. The base frame (15) is an A-shaped structure, consisting of two front and rear horizontal bars (1501) and two left and right vertical bars (1502). The two ends of the horizontal bars (1501) protrude from the ends of the vertical bars (1502). The horizontal bars (1501) and / or the vertical bars (1502) are configured as telescopic structures.

Images