Tailgate bicycle carrier with crossbar assembly and tailgate bicycle carrier

Abstract

The application provides a tail bicycle carrier clamp beam assembly and a tail bicycle carrier. The tail bicycle carrier clamp beam assembly comprises a clamping mechanism, a restraint member, a locking mechanism and an anti-theft mechanism. The restraint member is provided with a locking portion and has at least partial bending flexibility. The locking mechanism is configured to be capable of locking cooperation with the locking portion or releasing the locking cooperation with the locking portion. The anti-theft mechanism is arranged on the housing and comprises an operating member and a locking member. The locking member is movably arranged relative to the housing and has a locking position for locking cooperation with the locking portion and an unlocking position for releasing the cooperation with the locking portion. The operating member is provided with an unlocking interface for anti-theft. The locking member is arranged in linkage with the operating member. The operating member is driven through the unlocking interface to switch the locking member between the locking position and the unlocking position. The technical scheme of the application solves the problems of poor universality, complicated operation and lack of anti-theft function of the existing clamp beam clamp.

Description

Technical Field

[0001] This invention relates to the field of bicycle bracket technology, and more specifically, to a clamping beam assembly for a rear bicycle bracket and a rear bicycle bracket. Background Technology

[0002] In existing technologies, the device used to fix the bicycle frame beam in a rear bicycle bracket typically uses a traditional clamp-type beam clamp. Although the clamp-type beam clamp has strong clamping force, its clamping range is limited, and it can only be adapted to bicycle beams with specific cross-sectional shapes and sizes. It has poor versatility and is cumbersome to operate, requiring repeated adjustments to the clamp angle, resulting in a poor user experience. In addition, such devices usually lack anti-theft features. If the frame clamp is not locked when fixed, others can easily unlock it and steal the bicycle, posing a significant security risk. Summary of the Invention

[0003] The main objective of this invention is to provide a clamping beam assembly for a bicycle rear rack and a bicycle rear rack, so as to solve the problems of poor versatility, cumbersome operation and lack of anti-theft function of the clamp-type beam clamp in the prior art.

[0004] To achieve the above objectives, the present invention provides a clamping beam assembly for a bicycle rear rack, comprising: a clamping mechanism including a housing and a constraint member connected to the housing, the constraint member having a locking portion having one-way teeth, and the constraint member having at least a portion of bending flexibility so that the housing and the constraint member can form a clamping cavity; a locking mechanism disposed on the housing, the locking mechanism being configured to lock or unlock with the locking portion; and an anti-theft mechanism disposed on the housing, the anti-theft mechanism including an operating member and a locking member, the locking member being movably disposed relative to the housing, the locking member having a locking position for locking with the locking portion and an unlocking position for unlocking from the locking portion, the operating member having an unlocking interface for anti-theft, the locking member being linked to the operating member, and the operating member being driven through the unlocking interface to switch the locking member between the locking position and the unlocking position.

[0005] Furthermore, the anti-theft mechanism also includes a first elastic element, and the locking element is provided with a locking part, which is adapted to engage with the locking part. When the operating element is operated, the locking part can move away from the locking part to switch the locking element to the unlocked position, at which time the locking part and the locking part are disengaged; when the operating element is operated in the opposite direction, under the action of the elastic force provided by the first elastic element, the locking element is switched to the locked position, at which time the locking part and the locking part are engaged.

[0006] Furthermore, the locking member is located inside the housing, and the locking member has a mounting hole and a locking channel. The locking channel is for the restraint member to pass through. The inner wall of the locking channel has a locking part, and the locking part has teeth that engage with the locking part. The inner wall of the housing has an abutment member that extends into the mounting hole. The first elastic member is located in the mounting hole, and the two ends of the first elastic member abut against the bottom wall of the mounting hole and the abutment member, respectively, to provide an elastic force to the locking member that moves the locking part toward the locking part.

[0007] Furthermore, the operating component includes: an operating part, rotatably mounted on the housing, one end of which is provided with an unlocking interface that protrudes through the housing; and a transmission part, which is fixedly mounted on the other end of the operating part. When the operating part is rotated, the transmission part abuts against the locking member and drives the locking member to move to the unlock position. When the operating part is rotated in the opposite direction, the transmission part disengages from the locking member, and the locking member returns to the locked position.

[0008] Furthermore, one end of the constraint member is connected to the outer shell, and both the locking mechanism and the locking member form a one-way locking engagement with the locking part. The one-way locking engagement is configured such that when the locking mechanism engages with the locking part or the locking member is in the locked position, the other end of the constraint member can be pulled to move it in one direction, so as to tighten the clamping cavity and restrict the constraint member from loosening; wherein, the locking part is located between the two ends of the constraint member.

[0009] Furthermore, the bicycle rear bracket clamping beam assembly also includes a one-way drive mechanism, which is mounted on the housing. Under the action of external force, the one-way drive mechanism can drive the constraint member to move in one direction to tighten the clamping cavity.

[0010] Furthermore, the locking part includes a plurality of one-way teeth arranged sequentially along the length direction of the constraint member, with a tooth groove formed between two adjacent one-way teeth. The one-way drive mechanism includes: a drive handle, on which drive teeth are provided, and the drive handle is rotatably and movably mounted on the housing so that the drive teeth can engage or disengage with the tooth groove; a second elastic member, one end of which is connected to the drive handle and the other end of which is connected to the housing, and the second elastic member is used to provide an elastic force to the drive handle to keep the drive teeth separated from the tooth groove; the tooth groove has an abutment wall and an inclined wall, the abutment wall and the inclined wall are set at an angle, and when the drive handle is rotated, the drive teeth abut against the abutment wall to drive the constraint member to move in one direction.

[0011] Furthermore, the outer casing is provided with a guide groove, and the one-way drive mechanism also includes a rotating shaft. The rotating shaft is connected to the drive handle. The rotating shaft is rotatably engaged with the guide groove and is movably set within the guide groove. When the drive handle is rotated, the drive teeth mesh with the tooth groove, the rotating shaft slides along the guide groove and gradually moves away from the constraint member, and the drive handle is released, and the drive teeth separate from the tooth groove.

[0012] Furthermore, the locking part includes a plurality of one-way teeth arranged sequentially along the length direction of the constraint member, with a tooth groove formed between two adjacent one-way teeth. The locking mechanism includes: a locking member, which has meshing teeth and is rotatably mounted on the housing. The locking member has a one-way locking position where the meshing teeth and the tooth groove are locked in one direction, and a non-locking position where the meshing teeth are disengaged from the tooth groove; and a third elastic member, one end of which is connected to the locking member and the other end of which is connected to the housing. The third elastic member is used to provide an elastic force to the locking member to maintain it in the one-way locking position.

[0013] According to another aspect of the present invention, a rear bicycle rack is provided, comprising: the aforementioned rear bicycle rack clamping beam assembly; a main frame assembly, one end of which is used to connect to a vehicle rear trailer connection receiving part; a folding frame assembly rotatably disposed on the main frame assembly, the folding frame assembly having a tilted position relative to the main frame assembly to avoid flipping over the vehicle trunk, and a non-flipped position stacked on the main frame assembly to support and transport a bicycle; the folding frame assembly includes a base and a support frame, the base being used to mount a wheel holder for supporting a bicycle wheel, the support frame being disposed on the base, and the rear bicycle rack clamping beam assembly connecting the support frame.

[0014] Furthermore, the main frame assembly is provided with a locking component, and the rear bicycle rack also includes a locking component. The locking component is disposed on the folding frame assembly and includes a drive component, a transmission mechanism, and a locking element. The locking element is movably disposed relative to the folding frame assembly. The drive component is linked to the locking element through the transmission mechanism. In the non-flipped position, the locking element and the locking component are locked together to restrict the folding frame assembly from flipping. When the drive component is driven, the transmission mechanism drives the locking element to move and disengage from the locking component to release the folding frame assembly so that it can flip and tilt.

[0015] Furthermore, the driving member is rotatably or movably mounted on the folding frame assembly, and the transmission mechanism includes a force transmission member, one end of which is connected to the locking element, and the other end of which is connected to one end of the driving member. Operating the driving member can actuate the force transmission member so that the force transmission member drives the locking element to move and disengage from the locking component.

[0016] Furthermore, the base is provided with a first locking part and a second locking part; the support frame is rotatably disposed on the base, the support frame having a load-bearing position unfolded relative to the base and a folded position folded on the base; the folding frame assembly further includes: at least one locking component disposed on the support frame, the locking component including an operating member and a locking member, the first locking part and the second locking part being spaced apart around the pivot axis of the support frame, when the support frame is in the load-bearing position, the locking member locking with the first locking part, when the support frame is in the folded position, the locking member locking with the second locking part, and operating the operating member, the support frame can be switched between the load-bearing position and the folded position.

[0017] Furthermore, the support frame is provided with a sliding groove, and the locking component includes a sliding member and an elastic element. The sliding member is movably disposed in the sliding groove along the radial direction of the pivot axis, and the elastic element is used to provide an elastic force to the sliding member to move toward the pivot axis. The operating end of the operating member is opposite to the support frame, which facilitates simultaneous gripping of the operating member and the support frame. When the operating member is rotated, the support frame can be rotated synchronously, and the sliding member moves away from the pivot axis so that the sliding member can disengage from the first locking part or the second locking part, so that the support frame can switch between the carrying position and the folding position.

[0018] By employing the technical solution of this invention, a clamping cavity is formed by a flexible constraint member with unidirectional teeth and a housing. Utilizing the flexible deformation capability of the constraint member, it can adapt to and tightly fit bicycle frames with different cross-sectional shapes and sizes. This not only solves the problem of limited clamping range and poor versatility caused by traditional clamp-type frame clamps, but also avoids repeated adjustments to the clamping angle, making operation simpler and faster, thus improving the user experience. Furthermore, by setting up an anti-theft mechanism consisting of an operating member and a locking member, when the locking member is locked in the locked position through the unlocking interface, the locking member engages with the unidirectional teeth for locking. Even if an external attempt is made to unlock the locking mechanism, the restraint cannot be pulled out or loosened due to the additional locking of the locking part. This provides effective anti-theft protection and double protection in the fixed state, preventing others from easily unlocking the frame clamp and stealing the bicycle. This solves the security risks caused by the lack of anti-theft function in existing technologies. When the user needs to disassemble, they only need to insert the key into the unlocking interface to drive the operating part to switch the locking part to the unlock position. After unlocking the locking part, the one-way tooth lock can be released through the locking mechanism, thereby allowing the pull strap to be pulled out. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1A schematic diagram of an embodiment of the clamp beam assembly for bicycle rear racks of the present invention is shown;

[0021] Figure 2 It shows Figure 1 A schematic diagram of the locking mechanism and one-way drive mechanism of the bicycle rear rack clamp assembly;

[0022] Figure 3 It shows Figure 1 A partial view of the bicycle rear rack with clamping beam assembly;

[0023] Figure 4 It shows Figure 3 A cross-sectional view of the clamping beam assembly for the bicycle rear rack;

[0024] Figure 5 It shows Figure 1 Another partial view of the bicycle rack assembly at the rear of the vehicle;

[0025] Figure 6 It shows Figure 5 A cross-sectional view of the clamping beam assembly for the bicycle rear rack;

[0026] Figure 7 A cross-sectional view of the clamping beam assembly for the rear bicycle bracket of the present invention is shown;

[0027] Figure 8 Another cross-sectional view of the clamping beam assembly for the rear bicycle bracket of the present invention is shown;

[0028] Figure 9 A schematic diagram of an embodiment of the clamp beam assembly for bicycle rear racks of the present invention is shown;

[0029] Figure 10 A schematic diagram of an embodiment of the clamp beam assembly for bicycle rear racks of the present invention is shown;

[0030] Figure 11 It shows Figure 9 A cross-sectional view of the clamping beam assembly for the bicycle rear rack;

[0031] Figure 12 A schematic diagram of an embodiment of the bicycle rear support bracket of the present invention is shown;

[0032] Figure 13 It shows Figure 12 A partial structural diagram of the bicycle rack at the rear of the vehicle;

[0033] Figure 14 It shows Figure 13 A structural diagram of the main framework components;

[0034] Figure 15It shows Figure 12 A schematic diagram of the folding frame assembly of the bicycle rear rack;

[0035] Figure 16 It shows Figure 12 A partial structural diagram of the bicycle rack at the rear of the vehicle;

[0036] Figure 17 It shows Figure 13 A cross-sectional view of the bicycle rack at the rear of the vehicle;

[0037] Figure 18 It shows Figure 13 A cross-sectional view of the bicycle rack at the rear of the vehicle;

[0038] Figure 19 It shows Figure 13 A cross-sectional view of the bicycle rack at the rear of the vehicle;

[0039] Figure 20 It shows Figure 12 A schematic diagram of the folding frame assembly of the bicycle rear rack;

[0040] Figure 21 It shows Figure 20 A cross-sectional view of the bicycle rack at the rear of the vehicle;

[0041] Figure 22 It shows Figure 12 A cross-sectional view of the bicycle rack at the rear of the vehicle;

[0042] Figure 23 It shows Figure 12 A schematic diagram of the folding frame assembly of the bicycle rear rack;

[0043] Figure 24 It shows Figure 12 A schematic diagram of the structure of the bicycle rack at the rear of the vehicle;

[0044] Figure 25 It shows Figure 12 A schematic diagram of the structure of the bicycle rack at the rear of the vehicle;

[0045] Figure 26 It shows Figure 25 A schematic diagram of the taillight bracket and license plate bracket of the bicycle rack at the rear of the vehicle;

[0046] Figure 27 It shows Figure 25 A schematic diagram of the taillight bracket and license plate bracket of the bicycle rack at the rear of the vehicle.

[0047] The above figures include the following reference numerals:

[0048] 100. Outer shell; 101. Abutting part; 103. Locking part; 104. Tooth groove; 105. Guide groove; 106. Housing; 107. Base; 110. Locking mechanism; 115. Locking element; 112. Engaging tooth; 113. Third elastic element; 120. Operating element; 121. Unlocking interface; 122. Operating part; 123. Transmission part; 131. Locking element; 132. First elastic element; 13 3. Locking part; 1311. Mounting hole; 1312. Locking channel; 140. Restraint element; 1041. Abutment wall; 1042. Inclined wall; 150. One-way drive mechanism; 151. Drive handle; 152. Drive gear; 153. Second elastic element; 154. Rotating shaft; 161. Aluminum tube; 162. Slip bolt; 163. Pipe plug; 164. Clamp; 165. Nut clamp; 10. Main frame Frame assembly; 11. Limiting component; 111. Bearing inclined surface; 13. Locking component; 20. Folding frame assembly; 30. Driving component; 40. Transmission mechanism; 41. Force transmission component; 50. Locking element; 42. First connecting component; 421. First mounting groove; 43. Second connecting component; 431. Second mounting groove; 44. Pivoting component; 45. Fourth elastic component; 51. Hook; 52. Guide part; 22. Limiting part; 23. Base; 231. Limiting protrusion; 232. Buckle; 233. Connecting component; 24. First locking part; 25. Second locking part; 26. Support frame; 27. Operating component; 271. Sliding groove; 28. Locking component; 261. Sliding groove; 281. Sliding component; 282. Elastic element; 71. Wheel support; 72. License plate frame; 721. Ball plunger; 722. Positioning hole; 73. Taillight frame. Detailed Implementation

[0049] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0050] like Figures 1 to 11As shown, an embodiment of the present invention provides a clamping beam assembly for a bicycle rear rack, comprising: a clamping mechanism including a housing 100 and a constraint member 140, the constraint member 140 being connected to the housing 100, the constraint member 140 having a locking portion 103 having one-way teeth, and the constraint member 140 having at least a portion of bending flexibility so that the housing 100 and the constraint member 140 can form a clamping cavity; and a locking mechanism 110 disposed on the housing 100, the locking mechanism 110 being configured to engage with or disengage from the locking portion 103. Locking engagement; anti-theft mechanism, disposed on housing 100, the anti-theft mechanism includes operating member 120 and locking member 131, the locking member 131 is movably disposed relative to housing 100, the locking member 131 has a locking position for engaging with locking part 103 and an unlocking position for disengaging from locking part 103, the operating member 120 is provided with unlocking interface 121 for anti-theft, the locking member 131 is linked to the operating member 120, the operating member 120 is driven through unlocking interface 121 to switch the locking member 131 between the locking position and the unlocking position.

[0051] In the above technical solution, by using a flexible constraint member 140 with unidirectional teeth to form a clamping cavity with the outer shell 100, the flexible deformation capability of the constraint member 140 can adapt to and closely fit bicycle frames with different cross-sectional shapes and sizes. This not only solves the problem of limited clamping range and poor versatility caused by traditional clamp-type frame clamps, but also avoids repeated adjustments of the clamping angle, making operation simpler and faster, thus improving the user experience. In addition, by setting an anti-theft mechanism composed of an operating member 120 and a locking member 131, when the locking member 131 is in the locked position by operating the unlocking interface 121, the locking member 131 engages with the unidirectional teeth for locking. At this time, even if an external... The device attempts to unlock the locking part 103 through the locking mechanism 110. Due to the additional locking of the locking part 103 by the locking member 131, the restraint member 140 cannot be pulled out or loosened. This provides effective anti-theft protection and double protection in the fixed state, preventing others from easily unlocking the frame clamp and stealing the bicycle. This solves the security risks caused by the lack of anti-theft function in the prior art. When the user needs to disassemble, he only needs to insert the key into the unlocking interface 121 to drive the operating member 120 to switch the locking member 131 to the unlock position. After unlocking the locking part 103, the one-way tooth lock can be released through the locking mechanism 110, thereby realizing the pull strap being pulled out.

[0052] In some embodiments, the constraint member 140 is in the form of a flexible strap, which can be adapted to bicycle frames with different cross-sections. The strap is mounted on the housing 100 by a strap locking plate. The strap locking plate can adopt existing technology, which will not be described in detail here.

[0053] It should be noted that the unlocking interface 121 refers to an interface such as a keyhole or combination lock used to input specific unlocking commands.

[0054] like Figures 1 to 11 As shown, in an embodiment of the present invention, the anti-theft mechanism further includes a first elastic member 132, and a locking part 133 is provided on the locking member 131. The locking part 133 is adapted to engage with the locking part 103. When the operating member 120 is operated, the locking part 133 can move away from the locking part 103 to switch the locking member 131 to the unlocked position. At this time, the locking part 133 is disengaged from the locking part 103. When the operating member 120 is operated in the opposite direction, under the action of the elastic force provided by the first elastic member 132, the locking member 131 is switched to the locked position. At this time, the locking part 133 engages with the locking part 103.

[0055] With the above settings, the elastic restoring force of the first elastic element 132 can be used to realize the automatic reset of the locking element 131 in the locked position, without the need for the user to manually maintain the locked state, thereby reducing the complexity of operation; by operating the operating element 120 to overcome the elastic force of the first elastic element 132, the locking part 133 is disengaged from the locking part 103, and the interlock is released. At this time, the locking mechanism 110 can function normally to release the pull strap, so that the locking element 131 can switch between the locked position and the unlocked position.

[0056] In some embodiments, the first elastic element 132 is a compression spring.

[0057] like Figures 1 to 11 As shown, in an embodiment of the present invention, the locking member 131 is located inside the housing 100. The locking member 131 is provided with a mounting hole 1311 and a locking channel 1312. The locking channel 1312 is used for the restraint member 140 to pass through. The inner wall of the locking channel 1312 is provided with a locking part 133. The locking part 133 is provided with teeth that engage with the locking part 103. The inner wall of the housing 100 is provided with an abutment member 101. The abutment member 101 extends into the mounting hole 1311. The first elastic member 132 is located inside the mounting hole 1311, and the two ends of the first elastic member 132 abut against the bottom wall of the mounting hole 1311 and the abutment member 101, respectively, to provide the locking member 131 with an elastic force that causes the locking part 133 to move closer to the locking part 103.

[0058] In the above technical solution, the locking channel 1312 can guide and limit the constraint member 140, ensuring that the constraint member 140 does not shift when passing through the locking member 131, so as to facilitate the adjustment of the size of the clamping cavity; at the same time, under the continuous elastic force provided by the first elastic member 132, the locking part 133 always closely adheres to and engages with the locking part 103 (e.g., Figure 7As shown, the elasticity keeps the locking part 133 always downward and engaged with the locking part 103 below it, forming a locking mechanism that effectively prevents the locking from failing due to vibration, accidental collision or human negligence. This greatly improves the reliability of the anti-theft function while ensuring smooth transmission of the restraint components.

[0059] In some embodiments, the mounting hole 1311 and the locking channel 1312 are connected and set at an angle, and a positioning member is provided in the mounting hole 1311. The first elastic member 132 is located on the outer periphery of the positioning member so as to guide and position the first elastic member 132 during the reciprocating compression process.

[0060] like Figures 1 to 11 As shown, in an embodiment of the present invention, the operating member 120 includes: an operating part 122, rotatably disposed on the housing 100, one end of the operating part 122 having an unlocking interface 121 exposed through the housing 100; and a transmission part 123, the other end of the operating part 122 being fixedly provided with the transmission part 123. When the operating part 122 is rotated, the transmission part 123 abuts against the locking member 131 and drives the locking member 131 to move to the unlock position. When the operating part 122 is rotated in the opposite direction, the transmission part 123 disengages from the locking member 131, and the locking member 131 returns to the locked position.

[0061] In the above technical solution, the unlocking interface 121 is located on the outside of the housing, so that the user can easily drive the internal transmission part 123 to move the locking member 131 by rotating the operating part 122 without opening the housing, thereby improving the convenience and intuitiveness of operation. In addition, the locking member 131 will only move to the unlock position against the elastic force of the first elastic member 132 when the user actively rotates the operating part 122, thereby avoiding the risk of accidental contact or accidental unlocking. Then, the operating part 122 is rotated in the opposite direction to disengage the transmission part 123. With the automatic reset function of the first elastic member 132, locking can be achieved for easy operation.

[0062] In some embodiments, the unlocking interface 121 is a keyhole. The key is inserted into the keyhole, the key is turned, and the key drives the operating part 122 to rotate, which in turn drives the transmission part 123 to rotate, so as to unlock or lock.

[0063] In some embodiments, the operating element 120 is a rotary latch.

[0064] like Figures 1 to 11As shown, in an embodiment of the present invention, one end of the constraint member 140 is connected to the outer shell 100, and both the locking mechanism 110 and the locking member 131 form a one-way locking engagement with the locking part 103. The one-way locking engagement is configured such that when the locking mechanism 110 is locked into the locking part 103 or the locking member 131 is in the locked position, the other end of the constraint member 140 can be pulled to move it in one direction, so as to tighten the clamping cavity and restrict the constraint member 140 from being released; wherein, the locking part 103 is located between the two ends of the constraint member 140.

[0065] With the above configuration, the restraint member 140 can use the locking mechanism 110 and the locking member 131 as fulcrums or guide points during the tightening process to ensure that the restraint member 140 moves smoothly in one direction to tighten the clamping cavity, thereby adapting to the binding requirements of bicycle frames with different cross-sections. In addition, under the action of the locking mechanism 110 and the locking member 131, the retraction of the restraint member 140 can be effectively restricted to ensure the stability of the bicycle during riding vibrations and prevent the restraint member 140 from accidentally loosening. Moreover, even if the locking mechanism 110 is illegally operated, the locking member 131 can still prevent the restraint member 140 from loosening through mechanical obstruction, thereby improving anti-theft security.

[0066] In some embodiments, when in the locked position, the one-way drive mechanism 150, the locking mechanism 110, and the anti-theft mechanism are sequentially arranged along the one-way movement direction of the pull strap. In the locked position, when the drive handle 151 is turned, the locking member 115 and the locking part 133 perform the same one-way locking function. Due to the double-lock structure, unlocking only the locking member 115 does not allow the pull strap to be pulled out. Only after rotating the operating member 120, the locking part 133 moves upward and enters the unlocked state. At this time, only the locking member 115 is locked. In this state, unlocking the locking member 115 allows the pull strap to be pulled out smoothly from the beam clamp.

[0067] like Figures 1 to 11 As shown in the embodiment of the present invention, the clamping beam assembly for the bicycle rear bracket further includes a one-way drive mechanism 150. The one-way drive mechanism 150 is disposed on the housing 100. Under the action of external force, the one-way drive mechanism 150 can drive the constraint member 140 to move in one direction to tighten the clamping cavity.

[0068] In the above technical solution, the external force is used to drive the one-way drive mechanism 150 to make the constraint member 140 move in one direction. Combined with the original locking function, the clamping cavity can be tightened to reduce the difficulty of manually tightening the constraint member 140 by the user. This is especially useful for scenarios that require a large tightening force, thereby improving the convenience and labor-saving effect of use.

[0069] like Figures 1 to 11As shown, in an embodiment of the present invention, the locking part 103 includes a plurality of one-way teeth arranged sequentially along the length direction of the constraint member 140, and a tooth groove 104 is formed between two adjacent one-way teeth. The one-way drive mechanism 150 includes: a drive handle 151, on which drive teeth 152 are provided, and the drive handle 151 is rotatably and movably disposed on the housing 100 so that the drive teeth 152 can engage or disengage with the tooth groove 104; and a second elastic member 153. One end of the first elastic element 153 is connected to the drive handle 151, and the other end of the second elastic element 153 is connected to the housing 100. The second elastic element 153 is used to provide the drive handle 151 with an elastic force to keep the drive tooth 152 separated from the tooth groove 104. The tooth groove 104 has an abutment wall 1041 and an inclined wall 1042. The abutment wall 1041 and the inclined wall 1042 are set at an angle. When the drive handle 151 is rotated, the drive tooth 152 abuts against the abutment wall 1041 to drive the constraint member 140 to move in one direction.

[0070] In the above technical solution, the user along Figure 5 When the drive handle 151 is rotated counterclockwise, the drive tooth 152 first contacts the inclined wall 1042. Utilizing the guiding effect of the inclined wall 1042, the drive tooth 152 overcomes the elastic force of the second elastic element 153 and enters the tooth groove 104. This not only reduces frictional resistance and jamming during engagement, improving the smoothness of operation, but also allows the drive tooth 152 to enter the tooth groove 104 in one direction. Subsequently, the drive tooth 152 completely falls into the tooth groove 104 and abuts against the abutment wall 1041. At this time, the torque applied by the user is converted into a one-way force on the constraint element 140 through the abutment wall 1041. The thrust drives the constraint member 140 to move towards the tightening clamping cavity, achieving gradual tightening of the constraint member 140. Under the action of the abutment wall 1041, the drive handle rotates while moving away from the constraint member 140. When the user reverses or stops rotating the drive handle 151, the second elastic member 153 releases its elastic potential energy, pushing the drive handle 151 to rotate and reset, causing the drive tooth 152 to slide out of the tooth groove 104 along the inclined wall 1042 and separate from the tooth groove 104. If further tightening of the clamping cavity is needed, the drive handle 151 can be moved closer to the constraint member 140 and then rotated again. This achieves a continuous unidirectional transmission effect to tighten the clamping cavity, making the tightening process labor-saving, efficient, and controllable, thereby improving the user experience.

[0071] In some embodiments, the second elastic element 153 is a torsion spring.

[0072] like Figures 1 to 11As shown in the embodiment of the present invention, the outer shell 100 is provided with a guide groove 105, and the one-way drive mechanism 150 further includes a rotating shaft 154. The rotating shaft 154 is connected to the drive handle 151. The rotating shaft 154 is rotatably engaged with the guide groove 105 and is movably disposed within the guide groove 105. When the drive handle 151 is rotated, the drive tooth 152 meshes with the tooth groove 104. The rotating shaft 154 slides along the guide groove 105 and gradually moves away from the constraint member 140. When the drive handle 151 is released, the drive tooth 152 separates from the tooth groove 104.

[0073] In the above technical solution, when the user follows... Figure 5 When the drive handle 151 is rotated counterclockwise, the rotating shaft 154 moves away from the constraint member 140 under the action of the abutment wall 1041 and the rotation action. The guide groove 105 can guide the rotating shaft 154 to ensure that the drive teeth 152 can accurately and smoothly mesh with the tooth groove 104, avoiding jamming or disengagement due to position deviation. When the user releases the drive handle 151, the second elastic member 153 releases elastic potential energy and pushes the drive handle 151 to rotate clockwise to reset. If it is necessary to continue to tighten the clamping cavity, the user can move the drive handle 151 to make the rotating shaft 154 slide along the guide groove 105 to gradually approach the constraint member 140, and then continue to rotate the drive handle 151 to drive the constraint member 140 to move in one direction again.

[0074] In some embodiments, the guide groove 105 is disposed on the base 107 and the guide groove 105 is waist-shaped. In conjunction with the second elastic element 153 and the rotating shaft 154 (e.g., rivet), the drive handle 151 can perform a reciprocating tightening action.

[0075] like Figures 1 to 11 As shown, in an embodiment of the present invention, the locking part 103 includes a plurality of one-way teeth arranged sequentially along the length direction of the constraint member 140, and a tooth groove 104 is formed between two adjacent one-way teeth. The locking mechanism 110 includes: a locking member 115, which is provided with meshing teeth 112 and is rotatably disposed on the housing 100. The locking member 115 has a one-way locking position in which the meshing teeth 112 are locked in one direction with the tooth groove 104, and a non-locking position in which the meshing teeth 112 are disengaged from the tooth groove 104; and a third elastic member 113, one end of which is connected to the locking member 115 and the other end of which is connected to the housing 100. The third elastic member 113 is used to provide an elastic force to the locking member 115 to maintain it in the one-way locking position.

[0076] In the above technical solution, under the elastic force provided by the third elastic element 113, the locking element 115 remains in the one-way locking position. At this time, the meshing teeth 112 are inserted into the tooth groove 104, forming a mechanical interlock with the tooth groove 104. When the user tightens the clamping cavity through the one-way drive mechanism 150, the drive teeth 152 push the constraint element 140 to move, thereby causing the meshing teeth 112 on the locking element 115 to slide along the inclined wall 1042 of the tooth groove 104, and overcome the elastic force of the third elastic element 113, so as to allow the meshing teeth 112 to slide over... After passing the tip of the one-way tooth, it quickly falls into the next tooth groove 104 under the elastic force of the third elastic element 113. If the user needs to loosen the strap, he / she must manually overcome the elastic force of the third elastic element 113 and rotate the locking element 115 to the unlocked position so that the meshing tooth 112 is completely disengaged from the tooth groove 104. At this time, the restraint element 140 can move freely in the opposite direction. In this way, continuous tension can be ensured without additional operation by the user, preventing the strap from accidentally loosening due to vehicle vibration, thereby ensuring the safety of bicycle fixing.

[0077] In some embodiments, the third elastic element 113 is a torsion spring.

[0078] In some embodiments, the housing 100 includes a housing 106 and a base 107 disposed on the housing. A locking member 115 acts as a ratchet, pivotally connected to the base via rivets. A torsion spring keeps the locking member 115 in contact with the bottom of the base 107. When the pull strap passes through, the inclined wall 1042 on the pull strap allows the locking member 115 to move upwards. When it moves to the next tooth, the torsion spring torque causes the locking member 115 to automatically fall down. When pulled back, the engaging tooth 112 abuts against the vertical abutment wall 1041 of the pull strap, locking it in place. When manually pulling the pull strap and it can no longer be tightened, the drive handle 151 is activated to continue tightening the pull strap.

[0079] In this application, after the bicycle is mounted on the rear bicycle rack, it needs to be secured. The clamping beam assembly is rotated to the appropriate position, and the bicycle frame is secured with straps. Then, the ratchet and tooth mechanism (such as a locking mechanism and a one-way drive mechanism) of the clamping beam assembly is inserted to lock the straps. Subsequently, the straps of the front and rear wheels are tightened. In this way, the bicycle is fixed at three points in a triangle on the rack, restricting the bicycle's degrees of freedom in all directions and ensuring that the bicycle is stably secured to the rear bicycle rack.

[0080] In this application, a ratchet mechanism is used. After the belt is tightened, the ratchet mechanism (such as a one-way drive mechanism) is activated, which greatly increases the product's tension. It also has a quick unlocking mechanism (such as a locking mechanism). The clamping beam assembly has an anti-theft mechanism. After locking, it does not affect the normal tensioning function. However, the anti-theft mechanism must be opened before the locking mechanism can be unlocked to pull out the belt. Otherwise, if the locking mechanism is used, the belt will still be locked and cannot be pulled out, thus providing anti-theft and dual protection.

[0081] like Figures 12 to 27 As shown, an embodiment of the present invention provides a rear bicycle rack, comprising: the aforementioned rear bicycle rack clamping beam assembly; a main frame assembly 10, one end of which is used to connect to a vehicle rear trailer connection receiving part; a folding frame assembly 20, rotatably disposed on the main frame assembly 10, the folding frame assembly 20 having a tilted position relative to the main frame assembly 10 to avoid the flipping of the vehicle's trunk, and a non-flipped position stacked on the main frame assembly 10 to support and transport a bicycle; the folding frame assembly 20 includes a base 23 and a support frame 26, the base 23 being used to install a wheel holder 71 for supporting a bicycle wheel, the support frame 26 being disposed on the base 23, and the rear bicycle rack clamping beam assembly connecting the support frame 26.

[0082] With the above configuration, when the folding frame assembly 20 is in the non-flipped position carrying the bicycle, the bracket and the bicycle on it can be stably fixed. When the user needs to access items in the vehicle's trunk, the folding frame assembly 20 can be rotated to a flipped position tilted relative to the main frame assembly 10. At this time, the folding frame assembly 20 and the bicycle it carries can be moved to the side or upward to avoid the trunk opening area at the rear of the vehicle, making it easier for the user to open the trunk and retrieve items. This eliminates the need for the user to remove the rear bicycle bracket from the vehicle, reducing the complexity and time cost of user operations, and thus improving the convenience of opening the trunk and the user's experience in retrieving items. Therefore, the rear bicycle bracket of this application can solve the problem in the prior art where the bracket and bicycle obstruct the trunk door, causing inconvenience for the user in retrieving items.

[0083] In some embodiments, the support frame 26 is a U-tube, and the clamping beam assembly for the bicycle rear bracket also includes an aluminum tube 161, a rivet (e.g., a semi-hollow rivet), a swivel bolt 162, a tube plug 163, a clip 164, and a nut clip 165. The outer shell 100 is connected to the aluminum tube 161 by the semi-hollow rivet. The other end of the aluminum tube 161 is provided with a tube plug 163 and a swivel bolt 162. The three are connected together by the semi-hollow rivet. The swivel bolt 162 passes through the clip 164 and engages with the nut on the nut clip 165. By rotating the outer shell 100, the clip 164 and the nut clip 165 are locked, so that the clip 164 and the nut clip 165 can be clamped and fixed on the U-tube.

[0084] In some embodiments, the housing 100 is provided with a soft pad located within the clamping cavity to provide flexible support for the beam.

[0085] like Figures 12 to 27As shown in the embodiment of the present invention, the main frame assembly 10 is provided with a locking component 13, and the rear bicycle rack also includes a locking component. The locking component is disposed on the folding frame assembly 20. The locking component includes a driving component 30, a transmission mechanism 40, and a locking element 50. The locking element 50 is movably disposed relative to the folding frame assembly 20. The driving component 30 is linked with the locking element 50 through the transmission mechanism 40. In the non-flipped position, the locking element 50 is locked with the locking component 13 to restrict the folding frame assembly 20 from flipping. When the driving component 30 is driven, the transmission mechanism 40 drives the locking element 50 to move and disengage from the locking component 13 to release the folding frame assembly 20 so that it can flip and tilt.

[0086] In the above technical solution, when the folding frame assembly 20 is in the non-flipped position carrying the bicycle, the locking element 50 locks with the locking component 13 on the main frame assembly 10, which can ensure the stability and safety of the bracket and the bicycle on it during transportation, and prevent the folding frame assembly 20 from accidentally flipping due to vehicle vibration or driving inertia. When the user needs to access items in the vehicle's trunk, he only needs to operate the drive component 30. The drive component 30 drives the locking element 50 to move through the transmission mechanism 40, causing it to disengage from the locking component 13. This releases the restriction on the rotation of the folding frame assembly 20, allowing the folding frame assembly 20 to rotate to a flipped position tilted relative to the main frame assembly 10. At this time, the folding frame assembly 20 and the bicycle it carries can move to the side or upward to avoid the trunk opening area at the rear of the vehicle, so that the user can open the trunk to retrieve items without having to remove the bicycle bracket from the vehicle. This reduces the complexity and time cost of user operations, thereby improving the convenience of opening the trunk and the user's experience in retrieving items. Therefore, the bicycle rack at the rear of the vehicle in this application can solve the problem in the prior art where the rack and bicycle cover a large area of ​​the trunk door, making it inconvenient for users to retrieve their items.

[0087] In some embodiments, the folding frame assembly 20 includes a coupler. The rear bicycle bracket is connected and fixed to the trailer connection receiver (ball joint or square tube connector) at the rear of the vehicle via the coupler. The specific installation process is as follows: First, adjust the coupler to the appropriate position and install it onto the trailer connection receiver at the rear of the vehicle. Then, operate the clamping handle, using the force generated by the clamping handle to drive the coupler to retract or clamp inward, thereby firmly locking the ball joint inside the coupler, thus fixing the rear bicycle bracket to the vehicle. Finally, lock the coupler using the locking mechanism to prevent the coupler from loosening or accidentally disengaging under vehicle vibration or external force, and also to prevent theft, preventing unauthorized disassembly or movement of the bicycle bracket. The specific structure of the coupler can adopt existing technology, which will not be described in detail here.

[0088] In some embodiments, the folding frame assembly 20 is rotatably disposed on the main frame assembly 10 and connected to the main frame assembly 10 by bolts, nuts, bushings and washers to achieve a pivotal connection between the folding frame assembly 20 and the main frame assembly 10.

[0089] like Figures 12 to 27 As shown, in an embodiment of the present invention, the driving member 30 is rotatably or movably disposed on the folding frame assembly 20, and the transmission mechanism 40 includes a force transmission member 41. One end of the force transmission member 41 is connected to the locking element 50, and the other end of the force transmission member 41 is connected to one end of the driving member 30. Operating the driving member 30 can pull the force transmission member 41 so that the force transmission member 41 drives the locking element 50 to move and disengage from the locking member 13.

[0090] With the above settings, the user only needs to operate the drive component 30 to directly transmit the force to the locking element 50 through the force transmission component 41, drive the locking element 50 to move to disengage from the locking component 13, thereby quickly releasing the locking restriction on the folding frame assembly 20, so as to facilitate the subsequent flipping of the folding frame assembly 20.

[0091] In some embodiments, the drive member 30 is rotatably disposed at the rear of the folding frame assembly 20. The drive member 30 includes a foot pedal and a foot pedal bend connected to the foot pedal. In this way, stepping on the foot pedal can not only quickly release the locking restriction on the folding frame assembly 20, but also rotate the folding frame assembly 20 to the flip position.

[0092] like Figures 12 to 27 As shown, in an embodiment of the present invention, the transmission mechanism 40 further includes a first connecting member 42 and a second connecting member 43. The first connecting member 42 is connected to the locking element 50 and has a first mounting groove 421. The second connecting member 43 is connected to the driving member 30 and has a second mounting groove 431. The two ends of the force transmission member 41 are respectively provided with pivot members 44, and the two pivot members 44 are pivotally connected to the first mounting groove 421 and the second mounting groove 431 respectively.

[0093] With the above settings, during the operation of the drive component 30, it can be ensured that the force transmission component 41 can smoothly transmit power to the locking element 50, so as to avoid jamming, interference or stress concentration caused by rigid connection, thereby allowing the drive component 30 to be operated more smoothly.

[0094] In some embodiments, the force transmission element 41 and the two pivot elements 44 are composed of a brake cable assembly.

[0095] like Figures 12 to 27As shown, in an embodiment of the present invention, the folding frame assembly 20 has a mounting cavity, the locking element 50 is movably disposed in the mounting cavity, the transmission mechanism 40 further includes a fourth elastic element 45 disposed in the mounting cavity, the locking element 50 has a hook 51 extending out of the folding frame assembly 20, the locking member 13 is a pin, and the fourth elastic element 45 is used to provide an elastic locking force to the locking element 50 to move toward the locking member 13. When the folding frame assembly 20 is in a non-flipped position, the fourth elastic element 45 can keep the hook 51 in the state of hooking the pin.

[0096] In the above technical solution, by providing a fourth elastic element 45 in the mounting cavity of the folding frame assembly 20, its elastic force continuously applies a reset pressure toward the locking component 13 (pin) to the locking element 50, so that the hook 51 on the locking element 50 is always kept in the state of hooking the pin. In this way, the folding frame assembly 20 can be securely locked in the non-flipped position, effectively preventing the locking element 50 from accidentally coming off due to vibration, bumps or inertial forces during vehicle operation. This can improve the stability and safety of the bicycle rack at the rear of the vehicle during transportation, and ensure that the folding frame assembly 20 will not tilt in the horizontal state. At the same time, the user only needs to operate the drive component 30 to overcome the elastic force to easily unlock, thereby improving the convenience of use.

[0097] In some embodiments, the fourth elastic element 45 is a spring.

[0098] In some embodiments, the folding frame assembly 20 includes a movable hook fastener having a mounting cavity, in which a locking element 50 is fixed, and depending on the shape of the mounting cavity, the locking element 50 can only reciprocate along the horizontal direction of the brake line.

[0099] like Figures 12 to 27 As shown, in an embodiment of the present invention, a guide portion 52 is provided on the side of the hook 51 away from the folding frame assembly 20. During the process of the folding frame assembly 20 switching from the flipped position to the non-flipped position, the pin presses the guide portion 52 to drive the hook 51 to overcome the elastic locking force of the fourth elastic member 45 and move away from the pin, so that the hook 51 can finally hook the pin.

[0100] With the above settings, during the process of the folding frame assembly 20 resetting from the flipped position to the non-flipped position, the pin and the guide part 52 come into contact and squeeze, so as to drive the hook 51 to overcome the elastic force of the fourth elastic element 45 and move away from the pin to make way. When the hook 51 passes the pin, the elastic force of the fourth elastic element 45 immediately pushes the hook 51 to reset and hook the pin, thereby realizing the automatic completion of the locking action and reducing the difficulty of operation.

[0101] In some embodiments, the guide portion 52 is an inclined surface provided on the hook 51. The pin shaft contacts and presses against the inclined surface, and the component force of the inclined surface can be used to drive the hook 51 to overcome the elastic force of the fourth elastic element 45 and move away from the pin shaft to make way.

[0102] like Figures 12 to 27 As shown in the embodiment of the present invention, the main frame assembly 10 is provided with a limiting member 11, and the limiting member 11 is provided with an inclined bearing slope 111. The folding frame assembly 20 has opposite side arms. When the folding frame assembly 20 is in the flipped position, the bearing slope 111 supports the side arms to limit the folding frame assembly 20 from continuing to rotate.

[0103] In the above technical solution, by setting a limiting member 11 with an inclined bearing ramp 111 on the main frame assembly 10, when the folding frame assembly 20 is in the flipped position, the bearing ramp 111 can support the side arm of the folding frame assembly 20, thereby providing a reliable stop for the folding frame assembly 20, effectively limiting the rotation angle of the folding frame assembly 20, preventing it from colliding or uncontrollable shaking due to excessive flipping, and thus ensuring the structural stability and safety in the flipped state.

[0104] In some embodiments, the main frame assembly 10 is provided with two limiting members 11, which can support the two side arms respectively.

[0105] like Figures 12 to 27 As shown in the embodiment of the present invention, the folding frame assembly 20 is further provided with a limiting part 22, which has a groove. When the folding frame assembly 20 is in a non-flipped position, the locking member 13 is engaged with the groove of the limiting part 22 to keep the folding frame assembly 20 in a non-flipped position.

[0106] In the above technical solution, when the folding frame assembly 20 is in the non-flipped position, the locking member 13 is embedded in the groove of the limiting part 22 to form a limit, thereby restricting the folding frame assembly 20 to the non-flipped position, which can enhance the stability of the bracket during transportation.

[0107] In some embodiments, after the folding frame assembly 20 rotates 50°, the side arm (aluminum tube) on the folding frame assembly 20 will contact and abut against the bearing inclined surface 111 (i.e., the bearing inclined surface 111 is inclined at an angle of 50°), thereby restricting the rotation of the folding frame assembly 20, restoring the folding frame assembly 20 to a horizontal position, and the locking part 13 (positioning bolt) on the main frame assembly 10 will be engaged in the groove, so that the folding frame assembly 20 remains horizontal.

[0108] It should be noted that the flipping process of the folding frame assembly 20 of the rear bicycle rack in this application is as follows: Depressing the pedal drives the second connector mounted on the pedal bend, causing it to rotate. This rotates the brake cable, and the other end of the brake cable, through the first connector 42, causes the locking element 50 to move horizontally along the brake cable. After the locking element 50 disengages from the locking component 13, rotating the folding frame assembly 20 unlocks it. After unlocking, the foot leaves the pedal, and the spring force of the locking element 50 causes it to return to its original position. Because the tilt angle is 50°, the weight of the rear bicycle rack and the bicycle itself will not cause the folding frame assembly 20 to automatically rotate back to its original position. When resetting is required, simply push the folding frame assembly 20 back to its original position. When returning to the horizontal position, the foot pedal is not under force, and the locking element 50 is in its initial state. After rotating to a certain angle, the guide part 52 at the bottom of the locking element 50 contacts the locking component 13. The guide part 52 is under force, pushing the locking element 50 outward until it reaches the horizontal position. After the hook 51 on the locking element 50 engages with the locking component 13, the spring pushes the locking element 50 to reset. The locking element 50 hooks the locking component 13, preventing the folding frame assembly 20 from tilting.

[0109] A rear-end bicycle carrier is used to secure a bicycle to a bracket, which is then connected to the vehicle's trailer hitch via a ball joint coupler, thus securing the carrier to the vehicle for transport. In existing technology, when not carrying a bicycle, the bracket, fixed to the rear of the vehicle, is bulky and long, which can negatively impact the driving experience. Therefore, if... Figures 12 to 27 As shown, in an embodiment of the present invention, the base 23 is provided with a first locking part 24 and a second locking part 25; the support frame 26 is rotatably disposed on the base 23, and the support frame 26 has a bearing position unfolded relative to the base 23 and a folded position folded on the base 23; the folding frame assembly 20 further includes: at least one locking component disposed on the support frame 26, the locking component including an operating member 27 and a locking member 28, the first locking part 24 and the second locking part 25 being spaced apart around the pivot axis of the support frame 26, when the support frame 26 is in the bearing position, the locking member 28 is locked in engagement with the first locking part 24, and when the support frame 26 is in the folded position, the locking member 28 is locked in engagement with the second locking part 25, and operating the operating member 27 can switch the support frame 26 between the bearing position and the folded position.

[0110] In the above technical solution, when in the load-bearing position, the locking member 28 cooperates with the first locking part 24 to firmly fix the support frame 26, so as to store the bicycle and prevent the support frame 26 from accidentally folding due to vibration or load. When in the folded position, the locking member 28 cooperates with the second locking part 25 to fold the support frame 26, effectively reducing the product volume for easy storage. In addition, the locking member 28 can be switched between the first locking part 24 and the second locking part 25 by operating the member 27, so as to lock the support frame 26 in both the unfolded load-bearing and folded storage states, which is convenient for user operation. In this way, the overall volume of the folding frame assembly 20 can be reduced, thereby effectively preventing the bracket from protruding from the rear of the vehicle due to its large size when unloaded, affecting the driver's vision or causing the risk of scratches, thus improving the driving experience.

[0111] In some embodiments, the first locking part 24 and the second locking part 25 are both grooves provided on the base 23.

[0112] like Figures 12 to 27 As shown in the embodiment of the present invention, the support frame 26 is provided with a sliding groove 261, and the locking member 28 includes a sliding member 281 and an elastic element 282. The sliding member 281 is movably disposed in the sliding groove 261 along the radial direction of the pivot axis. The elastic element 282 is used to provide an elastic force to the sliding member 281 to move toward the pivot axis. The operating end of the operating member 27 is opposite to the support frame 26, which facilitates holding the operating member 27 and the support frame 26 at the same time. When the operating member 27 is rotated, the support frame 26 can be rotated synchronously, and the sliding member 281 moves away from the pivot axis so that the sliding member 281 can disengage from the first locking part 24 or the second locking part 25 so that the support frame 26 can switch between the carrying position and the folding position.

[0113] In the above technical solution, the centripetal elastic force provided by the elastic element 282 ensures that the sliding member 281 is always embedded in the first locking part 24 or the second locking part 25 when not in operation, thus ensuring the stable locking of the support frame 26 in the load-bearing or folded position and preventing accidental loosening. When the support frame 26 is in the load-bearing position, when the user rotates the operating component 27, since the operating end is opposite to the support frame 26 and can rotate synchronously, the operating force is directly converted into the rotation of the support frame 26 and the operating component 27. At the same time, the sliding member 281 is forced to overcome the elastic force and move away from the pivot axis to disengage from the first locking part 24 until the sliding member 281 rotates with the support frame 26 to the position corresponding to the second locking part 25. Under the action of the elastic element 282, the sliding member 281 will enter the second locking part 25 and lock with the second locking part 25. This facilitates the switching of the support frame 26 between the load-bearing position and the folded position.

[0114] In some embodiments, the operating member 27 is provided with a sliding groove 271, and the slider 281 is slidably engaged with the sliding groove 271. When the support frame 26 is switched from the bearing position to the folding position, or when the support frame 26 is switched from the folding position to the bearing position, the support frame 26 and the operating member 27 rotate together. The sliding groove 271 is used to guide the slider 281 so that the slider 281 can move in a direction away from the pivot axis. In this way, the slider 281 can be disengaged from the first locking part 24 or the second locking part 25.

[0115] In some embodiments, the base 23 includes a base and a connector 233 disposed on the base. The connector 233 is provided with a first locking groove for forming a first locking portion 24, a second locking groove for forming a second locking portion 25, and an arcuate guide wall located between the first locking groove and the second locking groove. The arcuate guide wall is disposed about a pivot axis. When the support frame 26 switches between a carrying position and a folding position, the slider 281 slides along the arcuate guide wall.

[0116] It should be noted that the operating component 27 is a folding handle, and the support frame 26 is a U-tube. Pressing down both folding handles simultaneously and then folding the U-tube achieves the U-tube folding function. The specific folding process of the support frame 26 of the bicycle rear rack in this application is as follows: Pressing down both folding handles simultaneously causes the sliding groove 271 on the folding handle to disengage the sliding element 281 (sliding pin) from the first locking groove. Rotating the U-tube to the second locking groove and releasing the handles causes the sliding element 281 to be pulled back to the second locking groove by the elastic element 282 (tension spring), thus locking the U-tube. Conversely, the U-tube can be unfolded and returned to the first locking groove.

[0117] like Figures 12 to 27 As shown, in an embodiment of the present invention, the base 23 includes a front panel, a rear panel, and two opposing side arms. The front panel, rear panel, and two opposing side arms enclose each other to form an accommodating space. The folding frame assembly 20 also includes a plurality of wheel supports 71. At least one wheel support 71 is pivotally connected to each side arm. The wheel support 71 has a storage position within the accommodating space and an unfolded position relative to the base 23. A limiting protrusion 231 is provided at the bottom of the side arm, and a buckle 232 is provided at the bottom of the wheel support 71. When the wheel support 71 is in the unfolded position, the limiting protrusion 231 and the buckle 232 engage in a limiting cooperation.

[0118] In the above technical solution, by utilizing the limiting protrusion 231 at the bottom of the side arm and the buckle 232 at the bottom of the wheel holder 71 to limit the engagement in the unfolded position, the wheel holder 71 can be locked to ensure that it maintains a stable posture when carrying the bicycle wheel. This can effectively prevent the wheel holder 71 from shifting, shaking, or accidentally overturning due to vibration, bumps, or inertial forces during vehicle operation, thereby improving the safety and stability of bicycle fixing. At the same time, the wheel holder 71 can be completely accommodated in the storage space formed by the base in the storage position, effectively reducing the overall volume and achieving compact storage of the product, so as to facilitate the storage of the rear bicycle rack in the trunk.

[0119] It should be noted that the number of wheel supports 71 on the two side arms is the same and they are symmetrically arranged. The wheel supports 71 and the side arms are pivotally connected together through a fixed shaft, and the wheel supports 71 can rotate around the fixed shaft.

[0120] It should be noted that when the wheel support 71 is unfolded, the buckle 232 on the wheel support 71 contacts the limiting protrusion 231. The buckle 232 is elastically deformed and locked into the corresponding position to reduce the shaking of the wheel support. Conversely, if you forcefully pull it upward, the buckle 232 will elastically deform and, after being released, can rotate around the fixed axis to retract.

[0121] like Figures 12 to 27 As shown, in an embodiment of the present invention, the folding frame assembly 20 further includes a license plate holder 72 and a taillight holder 73. The support frame 26 is disposed on the front side of the base 23, and the license plate holder 72 is disposed on the rear side of the base 23. The taillight holder 73 is rotatably connected to the license plate holder 72 so that the taillight holder 73 can be unfolded or folded relative to the license plate holder 72. One of the license plate holder 72 and the taillight holder 73 is provided with a plurality of ball plungers 721, and the other is provided with a positioning hole 722. The end of the ball plunger 721 can be inserted into the positioning hole 722 to position the taillight holder 73 in an unfolded state or a folded state.

[0122] In the above technical solution, by setting up a rotatably connected license plate holder 72 and taillight holder 73, the taillight holder 73 can be switched between unfolded and folded storage states. By utilizing the snap-fit ​​cooperation between the ball plunger 721 and the positioning hole 722, when unfolded, the ball plunger 721 snaps into the positioning hole 722 to provide stable support, ensuring that the taillight is fixed in position and at a suitable angle during driving, thereby increasing resistance, preventing the taillight from shaking, and ensuring the driving safety warning effect. When folded, the taillight holder 73 can be stored and fixed tightly against the license plate holder 72, effectively reducing the overall size of the product, so as to facilitate the storage of the bicycle rack at the rear of the vehicle.

[0123] In some embodiments, both ends of the license plate holder 72 are provided with taillight holders 73, and each end of the license plate holder 72 is provided with two ball plungers 721. The two ball plungers 721 are spaced apart around the pivot axis between the license plate holder 72 and the taillight holder 73. The two ball plungers 721 are respectively provided for the unfolded state and the folded state. Each taillight holder 73 is provided with a positioning hole 722. The ball plunger 721 includes a ball head and a spring. The spring is used to provide an elastic locking force to the ball head near the positioning hole 722. During rotation, each ball head can slide into or out of the positioning hole 722.

[0124] Embodiments of the present invention provide a rear bicycle rack that can be quickly folded and stored when no bicycle is being carried. Specifically, the left and right wheel supports 71, the support frame 26, and the taillight bracket 73 are all quickly folded to reduce the product's storage volume. The folding of each part is not only convenient but also has limiters in both the unfolded and folded storage states, ensuring stability and reliability. In some embodiments, when no bicycle is being carried, folding the support frame 26 does not interfere with the operation of the car's trunk opening and closing, making it even more convenient to use.

[0125] The aforementioned rear bicycle bracket has all the advantages of the aforementioned rear bicycle bracket clamp assembly, which will not be repeated here.

[0126] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: By using a constraint member with bending flexibility and unidirectional teeth to form a clamping cavity with the outer shell, the flexible deformation capability of the constraint member can adapt to and closely fit bicycle frames with different cross-sectional shapes and sizes. This not only solves the problem of limited clamping range and poor versatility caused by traditional clamp-type frame clamps, but also avoids repeated adjustments of the clamping angle, making operation simpler and faster, thereby improving the user experience. In addition, by setting an anti-theft mechanism composed of an operating member and a locking member, when the locking member is in the locked position through the unlocking interface, the locking member... In conjunction with the one-way toothed lock, even if an external attempt is made to unlock the locking part through the locking mechanism, the restraint cannot be pulled out or loosened due to the additional locking of the locking part by the locking member. This provides effective anti-theft protection and double protection in the fixed state, preventing others from easily unlocking the frame clamp and stealing the bicycle. This solves the security risks caused by the lack of anti-theft function in existing technologies. When the user needs to disassemble, they only need to insert the key into the unlocking interface to drive the operating member to switch the locking member to the unlock position. After unlocking the locking part, the one-way toothed lock can be released through the locking mechanism, thereby allowing the pull strap to be pulled out.

[0127] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A clamping beam assembly for a bicycle rear support, characterized in that, include: The clamping mechanism includes a housing (100) and a constraint member (140), the constraint member (140) being connected to the housing (100), the constraint member (140) having a locking part (103) having one-way teeth, and the constraint member (140) having at least a portion of bending flexibility so that the housing (100) and the constraint member (140) can form a clamping cavity; A locking mechanism (110) is provided on the housing (100), and the locking mechanism (110) is configured to lock into or release from the locking part (103); An anti-theft mechanism is provided on the outer casing (100). The anti-theft mechanism includes an operating component (120) and a locking component (131). The locking component (131) is movably disposed relative to the outer casing (100). The locking component (131) has a locking position that engages with the locking part (103) and an unlocking position that disengages from the locking part (103). The operating component (120) is provided with an unlocking interface (121) for anti-theft. The locking component (131) is linked to the operating component (120). The operating component (120) is driven through the unlocking interface (121) to switch the locking component (131) between the locking position and the unlocking position.

2. The clamping beam assembly for a bicycle rear bracket according to claim 1, characterized in that, The anti-theft mechanism further includes a first elastic element (132). The locking element (131) is provided with a locking part (133). The locking part (133) is adapted to engage with the locking part (103). When the operating element (120) is operated, the locking part (133) can move away from the locking part (103) so that the locking element (131) switches to the unlock position. At this time, the locking part (133) is disengaged from the locking part (103). When the operating element (120) is operated in the opposite direction, under the action of the elastic force provided by the first elastic element (132), the locking element (131) switches to the locking position. At this time, the locking part (133) engages with the locking part (103).

3. The clamping beam assembly for a bicycle rear bracket according to claim 2, characterized in that, The locking member (131) is located inside the housing (100). The locking member (131) is provided with a mounting hole (1311) and a locking channel (1312). The locking channel (1312) is used for the restraint member (140) to pass through. The inner wall of the locking channel (1312) is provided with the locking part (133). The locking part (133) is provided with teeth that engage with the locking part (103). The inner wall of the housing (100) is provided with an abutment member (101). The abutment member (101) extends into the mounting hole (1311). The first elastic member (132) is located inside the mounting hole (1311). The two ends of the first elastic member (132) abut against the bottom wall of the mounting hole (1311) and the abutment member (101) respectively, so as to provide the locking member (131) with an elastic force that makes the locking part (133) move closer to the locking part (103).

4. The clamping beam assembly for a bicycle rear bracket according to claim 1, characterized in that, The operating element (120) includes: An operating part (122) is rotatably disposed on the outer casing (100), and one end of the operating part (122) is provided with the unlocking interface (121), which is exposed through the outer casing (100); The transmission part (123) is fixedly provided on the other end of the operation part (122). When the operation part (122) is rotated, the transmission part (123) abuts against the locking member (131) and drives the locking member (131) to move to the unlock position. When the operation part (122) is rotated in the opposite direction, the transmission part (123) disengages from the locking member (131) and the locking member (131) returns to the locked position.

5. The clamping beam assembly for a bicycle rear rack according to any one of claims 1 to 4, characterized in that, One end of the constraint member (140) is connected to the outer shell (100). The locking mechanism (110) and the locking member (131) both form a one-way locking engagement with the locking part (103). The one-way locking engagement is configured such that when the locking mechanism (110) is locked with the locking part (103) or the locking member (131) is in the locked position, the other end of the constraint member (140) can be pulled to move it in one direction, so as to tighten the clamping cavity and restrict the constraint member (140) from being released. The locking part (103) is located between the two ends of the constraint member (140).

6. The clamping beam assembly for a bicycle rear rack according to claim 5, characterized in that, The bicycle rear bracket clamping beam assembly also includes a one-way drive mechanism (150), which is disposed on the housing (100). Under the action of external force, the one-way drive mechanism (150) can drive the constraint member (140) to move in one direction to tighten the clamping cavity.

7. The clamping beam assembly for a bicycle rear bracket according to claim 6, characterized in that, The locking part (103) includes a plurality of one-way teeth arranged sequentially along the length direction of the constraint member (140), and a tooth groove (104) is formed between two adjacent one-way teeth. The one-way drive mechanism (150) includes: A drive handle (151) is provided with drive teeth (152). The drive handle (151) is rotatably and movablely disposed on the housing (100) so that the drive teeth (152) can engage or disengage with the tooth groove (104). The second elastic element (153) has one end connected to the drive handle (151) and the other end connected to the housing (100). The second elastic element (153) is used to provide the drive handle (151) with an elastic force to keep the drive tooth (152) separated from the tooth groove (104). The tooth groove (104) has an abutment wall (1041) and an inclined wall (1042). The abutment wall (1041) and the inclined wall (1042) are set at an angle. When the drive handle (151) is rotated, the drive tooth (152) abuts against the abutment wall (1041) to drive the constraint member (140) to move in one direction.

8. The clamping beam assembly for a bicycle rear bracket according to claim 7, characterized in that, The housing (100) is provided with a guide groove (105). The one-way drive mechanism (150) also includes a rotating shaft (154). The rotating shaft (154) is connected to the drive handle (151). The rotating shaft (154) is rotatably engaged with the guide groove (105) and is movably disposed within the guide groove (105). When the drive handle (151) is rotated, the drive tooth (152) meshes with the tooth groove (104). The rotating shaft (154) slides along the guide groove (105) and gradually moves away from the constraint member (140). When the drive handle (151) is released, the drive tooth (152) separates from the tooth groove (104).

9. The clamping beam assembly for a bicycle rear bracket according to claim 5, characterized in that, The locking part (103) includes a plurality of one-way teeth arranged sequentially along the length direction of the constraint member (140), and a tooth groove (104) is formed between two adjacent one-way teeth. The locking mechanism (110) includes: A locking member (115) is provided with a meshing tooth (112). The locking member (115) is rotatably disposed on the housing (100). The locking member (115) has a one-way locking position in which the meshing tooth (112) is locked to the tooth groove (104), and a non-locking position in which the meshing tooth (112) is disengaged from the tooth groove (104). A third elastic element (113) is connected at one end to the locking element (115) and at the other end to the housing (100). The third elastic element (113) is used to provide the locking element (115) with an elastic force to maintain it in the one-way locking position.

10. A bicycle rear support bracket, characterized in that, include: Clamping beam assembly for bicycle rear rack as described in any one of claims 1 to 9; Main frame assembly (10), one end of which is used to connect to the trailer connection receiver at the rear of the vehicle; A folding frame assembly (20) is rotatably disposed on the main frame assembly (10). The folding frame assembly (20) has a flip position that is tilted relative to the main frame assembly (10) to avoid the vehicle trunk, and a non-flip position that is stacked on the main frame assembly (10) to carry a transport bicycle. The folding frame assembly (20) includes a base (23) and a support frame (26). The base (23) is used to install a wheel holder (71) that carries a bicycle wheel. The support frame (26) is disposed on the base (23). The rear bicycle bracket is connected to the support frame (26) by a clamping beam assembly.

11. The bicycle rack at the rear of a vehicle according to claim 10, characterized in that, The main frame assembly (10) is provided with a locking component (13), and the rear bicycle rack also includes a locking component. The locking component is disposed on the folding frame assembly (20). The locking component includes a drive component (30), a transmission mechanism (40), and a locking element (50). The locking element (50) is movably disposed relative to the folding frame assembly (20). The drive component (30) is linked with the locking element (50) through the transmission mechanism (40). In the non-flipped position, the locking element (50) is locked with the locking component (13) to restrict the folding frame assembly (20) from flipping. When the drive component (30) is driven, the transmission mechanism (40) drives the locking element (50) to move and disengage from the locking component (13) to release the folding frame assembly (20) so that it can flip and tilt.

12. The bicycle rack at the rear of a vehicle according to claim 11, characterized in that, The drive member (30) is rotatably or movably mounted on the folding frame assembly (20). The transmission mechanism (40) includes a force transmission member (41). One end of the force transmission member (41) is connected to the locking element (50), and the other end of the force transmission member (41) is connected to one end of the drive member (30). Operating the drive member (30) can pull the force transmission member (41) so that the force transmission member (41) drives the locking element (50) to move and disengage from the locking component (13).

13. The bicycle rack at the rear of a vehicle according to claim 10, characterized in that, The base (23) is provided with a first locking part (24) and a second locking part (25); the support frame (26) is rotatably disposed on the base (23), and the support frame (26) has a bearing position that unfolds relative to the base (23) and a folding position that folds onto the base (23); The folding frame assembly (20) further includes at least one locking component disposed on the support frame (26). The locking component includes an operating member (27) and a locking member (28). The first locking part (24) and the second locking part (25) are spaced apart around the pivot axis of the support frame (26). When the support frame (26) is in the bearing position, the locking member (28) locks into the first locking part (24). When the support frame (26) is in the folding position, the locking member (28) locks into the second locking part (25). Operating the operating member (27) allows the support frame (26) to switch between the bearing position and the folding position.

14. The bicycle rack at the rear of a vehicle according to claim 13, characterized in that, The support frame (26) is provided with a slide groove (261). The locking member (28) includes a slider (281) and an elastic element (282). The slider (281) is movably disposed in the slide groove (261) along the radial direction of the pivot axis. The elastic element (282) is used to provide the slider (281) with an elastic force to move toward the pivot axis. The operating end of the operating member (27) is opposite to the support frame (26), which facilitates holding the operating member (27) and the support frame (26) at the same time. When the operating member (27) is rotated, the support frame (26) can be rotated synchronously. The slider (281) moves away from the pivot axis so that the slider (281) can disengage from the first locking part (24) or the second locking part (25) so that the support frame (26) can switch between the bearing position and the folding position.

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