Turnover bicycle frame

Abstract

The utility model discloses a turnover bicycle frame which comprises an installation frame, a clamping device fixed to a rear hanging ball head of an automobile is arranged on the first side of the installation frame, a supporting connecting frame is connected to the second side of the installation frame in a pivoted mode, and a supporting face obliquely arranged towards the supporting connecting frame is further arranged on the second side of the installation frame. The movable frame is located above the mounting frame, the movable frame is provided with at least one vehicle rail assembly, the movable frame is rotationally connected to the mounting frame through a supporting connecting frame, and a lock hook mechanism is arranged between the movable frame and the mounting frame so that the movable frame and the mounting frame can be locked with each other; the part, extending out of the outer side of the mounting frame, of the movable frame is provided with a treading type driving mechanism used for driving the lock hook mechanism to be unlocked so that the supporting connecting frame can turn outwards to be supported by the supporting face. According to the bicycle frame capable of being turned over, a user can unlock and turn over the bicycle frame without manual operation, use steps are simplified, and convenience and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a reversible bicycle frame. Background Technology

[0002] Driven by the need for fashionable outdoor activities and convenient work, people often need to carry bicycles when traveling by car or working in remote areas. Since the interior space of vehicles is limited and unsuitable for bicycles, a flip-up bicycle rack is usually installed on the rear-mounted ball joint at the rear of the car. This allows for easy placement and removal of bicycles without affecting the normal use of the trunk. For example, utility model patent CN204077538U discloses a rear-mounted bicycle rack. The rack includes a taillight assembly, a movable frame weldment, a fixed frame weldment, a rail assembly, and a support assembly. The movable frame weldment has a pull rod at its front end, and its middle position is movably connected to the fixed frame weldment. The movable frame weldment can rotate relative to the fixed frame weldment around a fixed position. The front end of the movable frame weldment has a taillight assembly, and the rear end of the fixed frame weldment has a ball joint for securing the rear of the car. The upper end of the movable rod assembly has a rail assembly and a support assembly. The U-shaped support is fixed to the movable frame weldment by an adjusting chuck.

[0003] However, existing bicycle racks often require manual operation to flip and open, which is not only time-consuming and laborious, but also may pose safety hazards during the flipping process. Users also need to hold the flipped bicycle rack until it is in place before placing or removing the bicycle, making it inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the aforementioned technologies by designing a reversible bicycle frame. Users can unlock and flip the bicycle frame without manual operation, simplifying the usage process and improving convenience and safety.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a reversible bicycle frame, comprising:

[0006] Mounting bracket, the first side of which is provided with a clamping device for fixing to the rear ball joint of the vehicle, the second side of which is pivotally connected to a support connecting bracket, and the second side of which is also provided with a support surface inclined toward the support connecting bracket;

[0007] A movable frame is located above the mounting frame. The movable frame is provided with at least one track assembly. The bottom surface of the movable frame is fixedly connected to the support connecting frame, so that the movable frame is rotatably connected to the mounting frame through the support connecting frame. A locking hook mechanism is provided between the movable frame and the mounting frame to lock them together, so that the inner sidewall of the support connecting frame is above the top surface of the mounting frame. The portion of the movable frame extending to the outside of the mounting frame is provided with a foot-operated drive mechanism for unlocking the locking hook mechanism, so that the support connecting frame flips outward, and the inner sidewall of the support connecting frame is supported by the support surface.

[0008] Preferably, the locking mechanism includes a locking hook assembly frame, a locking hook body, an elastic element, and a transmission body. The locking hook assembly frame is fixedly connected to the movable frame. The lower part of the locking hook assembly frame extends to the bottom surface of the movable frame, and the lower part of the locking hook assembly frame is pivotally connected to the locking hook body. A movable hole for the locking hook body to move is provided through the lower part of the locking hook assembly frame. The upper part of the locking hook body passes through the movable hole. The two ends of the transmission body are respectively pivotally connected to the upper end of the locking hook body and the pedal-type drive mechanism. The elastic element is disposed between the interior of the locking hook assembly frame and the upper part of the locking hook body, so that the locking hook body tends to move closer to the transmission body. The mounting frame is hollow, and an insertion port is provided through the top surface of the mounting frame. A fixing pin is provided inside the mounting frame. The lower part of the locking hook body is inserted into the insertion port, and a hook groove for hooking the fixing pin is provided on the lower part of the locking hook body.

[0009] Preferably, the transmission body can be a rod-shaped structure or a rope-shaped structure.

[0010] Preferably, the side wall of the hook body away from the hook groove has a guide arc surface, and the lower part of the hook body near the side wall of the hook groove has a guide slope.

[0011] Preferably, the mounting bracket has a through-hole for inserting the fixing pin, so that the fixing pin can be detachably connected to the mounting bracket.

[0012] Preferably, the pedal-type drive mechanism includes a transmission frame and a foot pedal. The portion of the movable frame extending to the outside of the mounting frame is fixedly connected to a drive assembly frame. The lower part of the drive assembly frame extends to the bottom surface of the movable frame, and the drive assembly frame is pivotally connected to the transmission frame. The foot pedal is fixedly connected to the transmission frame, and the foot pedal extends to the outside of the movable frame for foot pedaling.

[0013] Preferably, a plurality of track assemblies are provided, and each track assembly is arranged at intervals along the length direction of the movable frame.

[0014] Preferably, the rail assembly includes a rail body and two wheel buckles located at both ends of the rail body.

[0015] Preferably, the movable frame is provided with a gripper frame on the side near the clamping device, and the gripper frame is provided with bicycle beam fixing grippers.

[0016] Preferably, a taillight device is provided on the side of the movable frame near the foot-operated drive mechanism, and the bottom of the taillight device has a clearance groove that cooperates with the foot-operated drive mechanism.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In use, the movable frame is rotatably connected to the mounting frame via a support connecting frame. The movable frame and the fixed frame are fixed together by a locking hook mechanism. The support connecting frame supports the movable frame, keeping it in a horizontal position. The portion of the movable frame extending outward from the mounting frame is equipped with a pedal-driven mechanism. When the user pedals the operating part of the pedal-driven mechanism to unlock the locking hook mechanism, the force of the pedal can also cause the movable frame to flip outward. The support connecting frame also flips outward, and the inner wall of the support connecting frame is supported by a support surface, thus ensuring that the movable frame remains in the open position. The movable frame is tilted relative to the mounting frame to facilitate the user's removal of the bicycle from the rail assembly. The user can unlock and flip the bicycle frame without manual operation, simplifying the usage steps and improving convenience and safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the bicycle frame structure in the embodiment. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the bicycle frame structure in the embodiment. Figure 2 ;

[0021] Figure 3 This is a cross-sectional view of the bicycle frame in the embodiment;

[0022] Figure 4 This is a cross-sectional view of the movable frame in the open position in the embodiment.

[0023] In the diagram: 1. Mounting frame; 101. Clamping device; 102. Support connecting frame; 103. Support surface; 104. Insert; 105. Fixing pin; 106. Fixing hole; 2. Movable frame; 201. Drive assembly frame; 202. Movable groove; 3. Rail assembly; 31. Rail body; 32. Wheel buckle; 4. Locking hook mechanism; 41. Locking hook assembly frame; 42. Locking hook body; 43. Elastic element; 44. Transmission body; 401. Hook groove; 402. Guide arc surface; 403. Guide slope; 404. Movable hole; 5. Pedal-type drive mechanism; 51. Transmission frame; 52. Foot pedal; 6. Gripper frame; 601. Bicycle beam fixing gripper; 7. Taillight device; 701. Clearance groove. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0025] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 A reversible bicycle frame includes a mounting frame 1 and a movable frame 2. The mounting frame 1 is a U-shaped frame, with a straight bar structure on its first side. The mounting frame 1 is equipped with a clamping device 101, which can be a clamping mechanism. The mounting frame 1 is fixed to the rear ball joint of a car via the clamping device 101. The second side of the mounting frame 1 is a forked end, and two supporting connecting frames 102 are pivotally connected to the forked end. The second side of the mounting frame 1 is also provided with a supporting surface 103 that is inclined towards the supporting connecting frames 102.

[0026] The movable frame 2 is located above the mounting frame 1. The length of the movable frame 2 is greater than the length of the mounting frame 1. The bottom surface of the movable frame 2 is fixedly connected to the support connecting frame 102. The movable frame 2 is rotatably connected to the mounting frame 1 through the support connecting frame 102.

[0027] A locking mechanism 4 is provided between the movable frame 2 and the mounting frame 1 to lock them together. Two locking mechanisms 4 are provided, located on opposite sides of the movable frame 2. Each locking mechanism 4 includes a locking hook assembly frame 41, a locking hook body 42, an elastic element 43, and a transmission body 44. The locking hook assembly frame 41 is fixedly connected to the movable frame 2, with its lower part extending to the bottom surface of the movable frame 2. The locking hook assembly frame 41 is pivotally connected to the locking hook body 42. A movable hole 404 for the locking hook body 42 to move is provided below the locking hook assembly frame 41. The upper part of the locking hook body 42 passes through the movable hole 404. Both ends of the transmission body 44 are pivotally connected to the upper end of the locking hook body 42 and the pedal-type drive mechanism 5, respectively. The elastic element 43 is located between the interior of the locking hook assembly frame 41 and the upper part of the locking hook body 42, so that the locking hook body 42 tends to move closer to the transmission body 44. Preferably, the elastic element 43 is a torsion spring structure.

[0028] The mounting bracket 1 is hollow, and its top surface has a through-hole 104. A fixing pin 105 is provided inside the mounting bracket 1, and a fixing hole 106 is provided for the fixing pin 105 to be inserted, allowing the fixing pin 105 to be detachably connected to the mounting bracket 1 for replacement. The lower part of the hook body 42 is inserted into the through-hole 104, and the hook body 42 has a hook groove 401 for hooking the fixing pin 105. A guide arc surface 402 is formed on the side wall of the hook body 42 away from the hook groove 401, and a guide slope surface 403 is formed on the lower part of the hook body 42 near the hook groove 401. The two ends of the transmission body 44 are pivotally connected to the upper end of the hook body 42 and the pedal-type drive mechanism 5, respectively. Preferably, the transmission body 44 can be a rod-shaped structure or a rope-shaped structure, such as a wire rope or a metal rod.

[0029] The portion of the movable frame 2 extending outside the mounting frame 1 is equipped with a foot-operated drive mechanism 5 for unlocking the locking hook mechanism 4. The foot-operated drive mechanism 5 includes a transmission frame 51 and a foot pedal 52. Two drive assembly frames 201 are fixedly connected to the portion of the movable frame 2 extending outside the mounting frame 1. The two drive assembly frames 201 are located on both sides of the mounting frame 1. The lower part of the drive assembly frame 201 extends to the bottom surface of the movable frame 2, and the drive assembly frame 201 is pivotally connected to the transmission frame 51. Movable grooves 202 are formed through the bottom surfaces of both sides of the movable frame 2. The portion of the transmission frame 51 passing through the movable grooves 202 and extending into the interior of the movable frame 2 is pivotally connected to the corresponding transmission body 44. The foot pedal 52 is fixedly connected to the transmission frame 51 and extends outside the movable frame 2 for foot pedaling. The foot pedal 52 is the operating part of the foot-operated drive mechanism 5.

[0030] The movable frame 2 is provided with a taillight device 7 on the side near the foot pedal drive mechanism 5. The bottom of the taillight device 7 is provided with a clearance groove 701 that cooperates with the foot pedal drive mechanism 5, and the foot pedal 52 extends to the outside of the clearance groove 701.

[0031] The movable frame 2 has three track assemblies 3 spaced apart along its length. The track assembly 3 includes a track body 31 and two wheel buckles 32 located at both ends of the track body 31.

[0032] The movable frame 2 is provided with a gripper frame 6 on the side near the clamping device 101, and the gripper frame 6 is provided with a bicycle beam fixing gripper 601.

[0033] When in use, the bicycle frame is fixedly mounted on the rear swing arm of the car via the clamping device 101. The movable frame 2 is rotatably connected to the mounting frame 1 via the support connecting frame 102. The user can hold the gripper 6 to rotate the movable frame 2, bringing it closer to the mounting frame 1. The guide arc surface 402 of the locking hook body 42 abuts against the inner wall of the insertion port 104 to rotate the locking hook body 42, ensuring that the locking hook body 42 is smoothly inserted into the insertion port 104. The guide inclined surface 403 of the locking hook body 42 abuts against the fixing pin 105 to rotate the locking hook body 42, allowing the locking hook body 42 to smoothly pass through the fixed pin 105. After the pin 105 and the locking hook body 42 are reset, its hook groove 401 cooperates with the pin 105. The movable frame 2 and the fixed frame are fixed to each other by the locking hook mechanism 4. The inner side wall of the support connecting frame 102 is located above the top surface of the mounting frame 1. The support connecting frame 102 supports the movable frame 2, keeping the movable frame 2 in a horizontal position. The user can place or remove the bicycle on the rail assembly 3. The bicycle is placed on the rail body 31, the wheel buckle 32 fixes the bicycle wheel, and the bicycle beam fixing claw 601 fixes the corresponding bicycle body, completing the fixed installation of the bicycle on the rail assembly 3.

[0034] The user steps on the operating part of the pedal-driven mechanism 5, causing the foot pedal 52 to drive the transmission frame 51 to rotate downwards, which in turn causes the transmission body 44 to drive the locking hook body 42 to rotate until the hook groove 401 of the locking hook body 42 is completely separated from the fixing pin 105. At the same time, the pedal-driven mechanism 5 drives the locking hook mechanism 4 to unlock. Simultaneously, the force of stepping can also be used to drive the movable frame 2 to flip outwards, and the support connecting frame 102 to flip outwards. The inner side wall of the support connecting frame 102 is supported by the support surface 103, thereby ensuring that the movable frame 2 remains in the open position under its own weight. This allows the movable frame 2 to tilt relative to the mounting frame 1, so that the user can place or remove the bicycle on the bicycle rail assembly 3. The user can unlock and flip the bicycle frame without manual operation, simplifying the usage steps and improving convenience and safety.

[0035] When the user releases the foot pedal 52, the locking hook body 42 resets under the drive of the elastic element 43, and drives the foot pedal 52 to reset via the transmission body 44.

[0036] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A reversible bicycle frame, characterized in that, include: Mounting bracket (1), the first side of the mounting bracket (1) is provided with a clamping device (101) for fixing to the rear ball joint of the vehicle, the second side of the mounting bracket (1) is pivotally connected to a support connecting bracket (102), and the second side of the mounting bracket (1) is also provided with a support surface (103) inclined toward the support connecting bracket (102); A movable frame (2) is located above the mounting frame (1). The movable frame (2) is provided with at least one track assembly (3). The bottom surface of the movable frame (2) is fixedly connected to the support connecting frame (102) so that the movable frame (2) is rotatably connected to the mounting frame (1) through the support connecting frame (102). A locking hook mechanism (4) is provided between the movable frame (2) and the mounting frame (1) to lock each other so that the inner sidewall of the support connecting frame (102) is located above the top surface of the mounting frame (1). The part of the movable frame (2) extending to the outside of the mounting frame (1) is provided with a foot-operated drive mechanism (5) for driving the locking hook mechanism (4) to unlock so that the support connecting frame (102) flips outward and the inner sidewall of the support connecting frame (102) is supported by the support surface (103).

2. A reversible bicycle frame according to claim 1, characterized in that, The locking mechanism (4) includes a locking hook assembly frame (41), a locking hook body (42), an elastic element (43), and a transmission body (44). The locking hook assembly frame (41) is fixedly connected to the movable frame (2). The lower part of the locking hook assembly frame (41) extends to the bottom surface of the movable frame (2), and the lower part of the locking hook assembly frame (41) is pivotally connected to the locking hook body (42). A movable hole (404) for the locking hook body (42) to move is provided through the lower part of the locking hook assembly frame (41). The upper part of the locking hook body (42) passes through the movable hole (404). The two ends of the transmission body (44) are respectively pivotally connected to the locking hook body. The upper end of the body (42) and the pedal-type drive mechanism (5) are provided with the elastic element (43) between the inside of the lock hook assembly frame (41) and the upper part of the lock hook body (42) so that the lock hook body (42) tends to approach the transmission body (44). The mounting frame (1) is hollow and the top surface of the mounting frame (1) has a through-hole (104). The mounting frame (1) has a fixing pin (105) inside. The lower part of the lock hook body (42) is inserted into the through-hole (104), and the lower part of the lock hook body (42) has a hook groove (401) that can hook the fixing pin (105).

3. A reversible bicycle frame according to claim 2, characterized in that, The transmission body (44) can be a rod-shaped structure or a rope-shaped structure.

4. A reversible bicycle frame according to claim 2, characterized in that, The side wall of the hook body (42) away from the hook groove (401) is formed with a guide arc surface (402), and the lower part of the hook body (42) near the side wall of the hook groove (401) is formed with a guide slope surface (403).

5. A reversible bicycle frame according to claim 2, characterized in that, The mounting bracket (1) has a through fixing hole (106) for inserting the fixing pin (105) so that the fixing pin (105) can be detachably connected to the mounting bracket (1).

6. A reversible bicycle frame according to claim 2, characterized in that, The pedal-type drive mechanism (5) includes a transmission frame (51) and a foot pedal (52). The portion of the movable frame (2) extending to the outside of the mounting frame (1) is fixedly connected to a drive assembly frame (201). The lower part of the drive assembly frame (201) extends to the bottom surface of the movable frame (2), and the drive assembly frame (201) is pivotally connected to the transmission frame (51). The foot pedal (52) is fixedly connected to the transmission frame (51), and the foot pedal (52) extends to the outside of the movable frame (2) for foot pedaling.

7. A reversible bicycle frame according to claim 1, characterized in that, Several track assemblies (3) are provided, and each track assembly (3) is arranged at intervals along the length direction of the movable frame (2).

8. A reversible bicycle frame according to claim 1, characterized in that, The rail assembly (3) includes a rail body (31) and two wheel buckles (32) located at both ends of the rail body (31).

9. A reversible bicycle frame according to claim 1, characterized in that, The movable frame (2) is provided with a gripper frame (6) on the side near the clamping device (101), and the gripper frame (6) is provided with a bicycle beam fixing gripper (601).

10. A reversible bicycle frame according to claim 1, characterized in that, The movable frame (2) is provided with a taillight device (7) on the side near the foot-operated drive mechanism (5), and the bottom of the taillight device (7) is provided with a clearance groove (701) that cooperates with the foot-operated drive mechanism (5).

Images