Bicycle body supporting device and roof bicycle frame

Abstract

The utility model provides a bicycle body supporting device and a roof bicycle frame. Comprising a second base frame, a bearing piece and a supporting assembly. The second base frame is used for being installed on a frame of an automobile roof. The bearing piece is used for bearing a bicycle body and / or wheels which are put down; the supporting assembly is installed on the second base frame and used for supporting the bearing piece and enabling the bearing piece to be separated from the second base frame. The bearing piece is used for bearing the put-down bicycle body, so that the problem that after a bicycle in a traditional car roof bicycle frame is put down, the upper body of the bicycle is suspended to form a cantilever beam structure, and consequently the service life of the car roof bicycle frame is shortened is solved, and the phenomenon that the bicycle body scratches and crushes a car roof due to shaking can also be avoided. The whole structure adopts a steel pipe structure, wind resistance is smaller, and supporting is more stable.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-mounted bicycle racks, specifically to a bicycle frame support device and a roof-mounted bicycle rack. Background Technology

[0002] Bicycles are widely used for sports and fitness, and many cycling enthusiasts often install roof racks on their cars. These cars have fixed pole-shaped frames, which can be roof racks or crossbar supports mounted on roof racks. Existing roof racks typically fix the bicycle vertically to the roof, resulting in a significant height difference between the car body and the bicycle, potentially preventing the bicycle from passing under height limit bars and causing inconvenience for the driver. Therefore, Chinese utility patent CN221794523U discloses a folding and flattening structure for a bicycle on a car roof. This involves installing two triangular supports on the roof rack. When the swing arm of the triangular supports swings to a vertical position, the bicycle is flattened on the roof, with the bicycle's wheels fixed to the roof rack. However, the specification does not explain what supports the bicycle frame. (From the attached drawings...) Figure 1 It appears to be a cantilever beam structure, which is not conducive to the stability of the bicycle while riding and also has a significant impact on the lifespan of the bicycle frame on the roof. Especially when riding on bumpy roads, the bicycle frame may be scratched or damaged by shaking.

[0003] In view of the above, this application is hereby submitted. Summary of the Invention

[0004] This utility model provides a vehicle-mounted bicycle frame to solve at least one of the above-mentioned technical problems.

[0005] A bicycle frame support device includes a second base frame, a support member, and a support assembly.

[0006] The second base frame is used for mounting on the vehicle roof frame;

[0007] Support components are used to support the bicycle frame and / or wheels when it is laid down;

[0008] The support assembly is mounted on the second base frame to support the support member and to space the support member from the second base frame.

[0009] Furthermore, the support component is slidably mounted on the second base frame; and includes a third position control component for releasing and reinforcing the fixed relationship with the second base frame.

[0010] Furthermore, the second base frame has a third top opening slide groove arranged along its length; the third position control component includes a third sliding fixing plate slidably fitted in the third top opening slide groove, a third adjusting fixing post fixed on the third sliding fixing plate and passing through the support component, and a third hand-tightening knob nut for threaded engagement with the upper part of the third adjusting fixing post.

[0011] Furthermore, the supporting component is a supporting crossbar, which is arranged approximately parallel to the second base frame, and the length of the supporting crossbar is 50~100CM.

[0012] Furthermore, the supporting crossbar is wrapped with a buffer material layer; the support assembly includes support rods connected to both ends of the supporting crossbar and a support base located at the bottom of the support rods, and both the supporting crossbar and the support rods are steel pipe structures;

[0013] It also includes a reinforcing beam, the two ends of which are fixedly connected to the support rod and located below the supporting crossbar. The reinforcing beam is provided with multiple hook rings.

[0014] Furthermore, it also includes a binding component, which is used to switch the binding and unbinding states between the bicycle frame and the bicycle frame support device.

[0015] Furthermore, the binding component is a Velcro strap, a self-locking cord, or a self-locking strap.

[0016] Furthermore, the vehicle roof frame includes at least two crossbar supports, which are used for laterally fixing to the shelves on both sides of the roof;

[0017] The bicycle frame support device also includes a detachable mounting and fixing mechanism, through which the second base frame is detachably and fixedly connected to the crossbar bracket.

[0018] This application also provides a rooftop bicycle rack, characterized in that it includes a bicycle locking device, a mechanism that can be used for both upright and flat placement, and a bicycle frame support device as described above.

[0019] The bicycle locking device is used to secure the wheels or frame of the bicycle.

[0020] The bicycle locking device can be folded down so that the fixed bicycle can be folded down; the bicycle frame support device is used to support the bicycle frame after it is folded down.

[0021] Furthermore, the upright and flat-lay dual-purpose mechanism includes a base plate and a swing member hinged to the base plate; the base plate is used to be mounted on the frame of a car roof, and the swing member is connected to the bicycle locking device to drive the bicycle locking device to swing together with the swing member; the bicycle locking device includes a first base frame, the base frame is elongated and the base frame is slidably mounted on the swing member.

[0022] This utility model discloses a bicycle frame support device. A second base frame allows for secure mounting on a car roof frame, while a support member supports the bicycle frame when it is laid down. This bicycle frame refers to the upper-middle section of the bicycle, which can be the frame, wheels, or handlebars. This avoids the reduced lifespan of traditional roof-mounted bicycle frames where the upper part of the bicycle is suspended in the air like a cantilever beam after being laid down. It also prevents the bicycle frame from being scratched or damaged by shaking. Furthermore, the support component separates the support member from the second base frame, ensuring that when the bicycle is laid down and supported on the support member, various parts of the bicycle frame, such as the handlebars, are kept separate from the roof, preventing reliance on the roof for support and avoiding scratches or damage to the roof caused by shaking during bumpy rides.

[0023] Furthermore, the bicycle frame support device of this invention, by slidingly mounting the support component on the second base frame and controlling the fastening and sliding states with a third hand-tightened knob nut, can better adapt to different bicycle models. By providing a third top-opening sliding groove along the length of the second base frame, the third position control component can better control the sliding of the support component on the second base frame, thus allowing it to be moved to a more optimal support position according to different bicycle models.

[0024] Furthermore, by setting the support component as a supporting crossbar and the main body of the support component as a supporting rod; both the supporting crossbar and the supporting rod are steel pipe structures; thus, the overall structure has lower wind resistance and more stable support. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the bicycle rack on the roof of a vehicle according to an embodiment of this utility model;

[0026] Figure 2 yes Figure 1 A schematic diagram of a bicycle locking device and a mechanism that can be used both upright and flat.

[0027] Figure 3 yes Figure 2 A schematic diagram of the overall structure of the upright and flat-laying dual-purpose mechanism;

[0028] Figure 4 yes Figure 1 A schematic diagram of the upright and horizontal dual-purpose mechanism for fixing the rear wheel;

[0029] Figure 5 yes Figure 4 A structural diagram from a second perspective;

[0030] Figure 6 yes Figure 1 A schematic diagram of the structure of a bicycle frame support device;

[0031] Figure 7 yes Figure 1 A schematic diagram of the overall structure of the crossbar support;

[0032] Figure 8 yes Figure 7 A schematic diagram of the structure in its collapsed state;

[0033] Figure 9 yes Figure 8 A structural diagram from a second perspective;

[0034] Figure 10 yes Figure 9 A structural diagram from a second perspective;

[0035] Figure 11 yes Figure 7 A schematic diagram of the overall structure of a stationary bicycle;

[0036] Figure 12 yes Figure 11 A schematic diagram of a bicycle in a laid-down position.

[0037] Figure label:

[0038] 1. Bicycle locking device; 11. First base frame; 111. First top opening slide groove; 12. Front wheel fixing mechanism; 13. Rear wheel fixing mechanism; 131. Rear wheel fixing seat; 14. First position control component;

[0039] 2. Upright and flat dual-purpose mechanism; 21. Base plate; 211. Base plate; 212. Side wall; 22. Swinging component; 23. Tilting and locking assembly; 231. First hand-tightening knob nut; 232. First bolt; 24. Second position control assembly; 241. Second sliding fixing plate; 25. Slide plate;

[0040] 3. Bicycle frame support device; 31. Second base frame; 311. Third top opening slide; 32. Support component; 33. Support assembly; 331. Support rod; 34. Third position control assembly; 35. Reinforcing crossbeam; 351. Hook ring;

[0041] 4. Crossbar support; 41. Second top opening slide groove;

[0042] 5. Detachable mounting and fixing mechanism;

[0043] X, bicycle. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0045] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0046] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0047] Please refer to Figures 1 to 12 A roof-mounted bicycle rack is primarily used to securely fasten a bicycle X to the roof of a car for transportation. It also allows the bicycle X to be folded down to reduce the overall height of the vehicle, such as when traversing areas with height restrictions, adapting to different road conditions. Its core structure includes a bicycle locking device 1 and a dual-purpose upright / flattened mechanism 2. The bicycle locking device 1 secures the wheels or frame of the bicycle X, while the dual-purpose mechanism 2 uses a swingable structure to switch between the upright and folded fixed states of the bicycle X.

[0048] The bicycle locking device 1 is used to secure the wheels or frame of the bicycle X. The specific structure of the bicycle locking device 1 is not limited here; it only needs to secure the bicycle X and maintain its fixation even when switching between the upright and folded-down positions using the dual-purpose upright / flat-down mechanism 2. In this embodiment, the bicycle locking device 1 secures the bicycle X by fixing its front and rear wheels.

[0049] The upright and flat-laying dual-purpose mechanism 2 includes a base plate 21, a swing member 22 hinged to the base plate 21, and a folding locking assembly 23 for switching between a relatively fixed state and a relatively swingable state between the swing member 22 and the base plate 21.

[0050] The base plate 21 is used to mount on a frame on the roof of a car. The frame on the roof can be a car roof rack, a crossbar support 4 of a rack, or other frame fixedly mounted on the top of the car. The bicycle locking device 1 is mounted on the swinging member 22, so that when the folding locking assembly 23 switches to a relative swinging state, the swinging member 22 can drive the bicycle locking device 1 to swing together, thereby folding down the fixed bicycle X.

[0051] By setting up a dual-purpose upright and flat-lay mechanism 2, the bicycle X, which is fixed to the bicycle locking device 1, can be laid down on the roof. With the simple design of a simple base plate 21, a swing member 22 hinged to the base plate 21, and a folding locking assembly 23 for switching between a relatively fixed state and a relatively swinging state between the swing member 22 and the base plate 21, it is possible to make the bicycle X upright and fixed for normal transportation, and also to make it easy to lay down the bicycle X on specific roads to reduce the overall height of the vehicle.

[0052] The reclining locking assembly 23 is a key component for achieving state switching. There are various ways to achieve this state switching, such as snap-locking, clamping locking, and threaded locking. Preferably, it adopts a manual operation design to improve ease of use. For example, the reclining locking assembly 23 can be configured as a mating structure between a first hand-tightening knob bolt and a first threaded hole—the first threaded hole is provided on the base plate 21, and the first hand-tightening knob bolt passes through the swing member 22 and is threaded into the threaded hole; in the open state, the first hand-tightening knob bolt is screwed into the first threaded hole, making it less likely to fall off or be lost; in general, the swing member 22 has corresponding through holes or slots.

[0053] In this embodiment, a mating structure of a first hand-tightening knob nut 231 and a first bolt 232 is adopted—the first bolt 232 is fixed to the base plate 21, and the first hand-tightening knob nut 231 passes through the swing member 22 and is threadedly connected to the bolt. Both structures can achieve the fastening (locked state when tightened, the swing member 22 cannot swing) or release (the swing member 22 can rotate around the hinge point when loosened) of the swing member 22 to the base plate 21 by rotating the hand-tightening component. In the open state, the first hand-tightening knob nut 231 can be screwed back onto the first bolt 232 to prevent it from falling or being lost. This embodiment allows for quick and convenient switching between the two states, making it convenient for users.

[0054] To achieve compatibility with different bicycle models X and to flexibly adjust according to the body length of different bicycles X, the bicycle locking device 1 has been further optimized in design.

[0055] The bicycle locking device 1 includes a front wheel fixing mechanism 12 for fixing the bicycle X and a rear wheel fixing mechanism 13 for fixing the bicycle X; and includes a first base frame 11, which is elongated and mounted on the swing member 22.

[0056] The bicycle locking device 1 has a front wheel fixing mechanism 12 mounted on the first base frame 11, and a rear wheel fixing mechanism 13 slidably mounted on the first base frame 11, and includes a first position control component 14 for releasing and reinforcing the fixing relationship with the first base frame 11.

[0057] By mounting the first base frame 11 onto the swing member 22, the cooperation between the bicycle locking device 1 and the upright / flat dual-use mechanism 2 becomes more flexible; since the rear wheel fixing mechanism 13 can be slidably adjusted on the first base frame 11, it can be adjusted according to the body length of different bicycles X.

[0058] Considering stability during transportation, at least two upright / flat-layout dual-purpose mechanisms 2 are typically provided. Furthermore, one of these mechanisms 2 is fixedly connected to the rear wheel fixing mechanism 13. This embodiment enhances the connection strength between the upright / flat-layout dual-purpose mechanism 2 and the bicycle locking device 1. Multiple upright / flat-layout dual-purpose mechanisms 2 are more robust than a single mechanism 2, which is beneficial for balance. In other preferred embodiments, there may be three, four, or even more upright / flat-layout dual-purpose mechanisms 2.

[0059] In this embodiment, there are two upright and flat-layout dual-purpose mechanisms 2. The first vehicle folding mechanism 2 is fixedly connected to the rear wheel fixing mechanism 13, and the first base frame 11 is slidably mounted on the swing member 22. When it is necessary to adjust the position of the rear wheel fixing mechanism 13 on the first base frame 11 according to different vehicle models, since multiple upright and flat-layout dual-purpose mechanisms 2 are all mounted on the vehicle frame on the roof of the car, their relative positions are not easy to move. Therefore, the position of the rear wheel fixing mechanism 13 on the first base frame 11 is adjusted by the slidable cooperation between the first base frame 11 and the swing member 22. Since the rear wheel fixing mechanism 13 is fixed to the first upright and flat-layout dual-purpose mechanism 2, the first base frame 11 will slide relative to the first upright and flat-layout dual-purpose mechanism 2, and also needs to slide relative to the second upright and flat-layout dual-purpose mechanism 2.

[0060] In order to facilitate the position adjustment of the rear wheel fixing mechanism 13 on the first base frame 11, in this embodiment, the first base frame 11 has a first top opening slide groove 111 arranged along its length direction; the rear wheel fixing mechanism 13 includes a rear wheel fixing seat 131 that slides in the first top opening slide groove 111 to adapt to different bicycle wheel wheel wheel axles.

[0061] The first position control component 14 includes a second hand-tightening knob nut, a rear wheel fixing plate, a first sliding fixing plate slidably fitted within the first top opening groove 111, and a first adjusting fixing post fixed to the first sliding fixing plate and passing through the rear wheel fixing plate. The upper part of the first adjusting fixing post is threadedly engaged with the second hand-tightening knob nut. The rear wheel fixing plate is part of the rear wheel fixing seat 131 body or is fixedly connected to the rear wheel fixing seat 131 body. This embodiment offers flexible adjustment and can adapt to different bicycle wheel tracks.

[0062] Specifically, the upright and flat dual-purpose mechanism 2 and the rear wheel fixing mechanism 13 are fixedly connected in such a way that the rear wheel fixing seat 131 is fixedly connected to the swinging component 22 of the corresponding upright and flat dual-purpose mechanism 2.

[0063] To facilitate fixing the upright and flat-layout dual-purpose mechanism 2 to the car roof, in this embodiment, the car roof frame also includes two crossbar supports 4. The crossbar supports 4 are used for horizontally fixing to the shelves on both sides of the roof. The base plate 21 of the upright and flat-layout dual-purpose mechanism 2 can be fixedly connected to the crossbar supports 4. Since the upright and flat-layout dual-purpose mechanism 2 can be directly fixedly connected to the crossbar supports 4, the fixing performance is increased.

[0064] Furthermore, the base plate 21 is slidably engaged with the crossbar support 4 and has a second position control component 24 for releasing and reinforcing the fixed relationship with the crossbar support 4. Thus, when the height of the bicycle X varies, the position of the upright / flattening dual-purpose mechanism 2 on the crossbar support 4 can be adjusted to meet the space requirements when the taller bicycle X is folded down. The position adjustment of the base plate 21 on the crossbar support 4 can adapt to the lateral space of the roof; the sliding adjustment of the rear wheel fixing mechanism 13 on the first base frame 11, and the sliding adjustment of the first base frame 11 on the upright / flattening dual-purpose mechanism 2, can determine the longitudinal space of the bicycle X in the length direction.

[0065] There are several ways to implement the second position control component 24, such as a pin-type multi-positioning structure, a gear and rack sliding locking structure, and an elastic buckle positioning structure.

[0066] In this embodiment, to simplify the structure, reduce costs, and improve strength, the crossbar bracket 4 has a second top-opening slide groove 41 arranged along its length. The second position control component 24 includes a second sliding fixing plate 241 slidably fitted within the second top-opening slide groove 41, a second adjusting fixing post fixed to the second sliding fixing plate and passing through the base plate 21, and a fastening nut for threaded engagement with the upper part of the second adjusting fixing post. This fastening nut can be a regular nut or a hand-tightening nut. Since the adjustment frequency for bicycle X height adaptation is relatively low, in this embodiment, a regular nut is primarily used, requiring tools for tightening and loosening.

[0067] Please refer to Figures 2-5 In this embodiment, the base plate 21 includes a base plate 211 and side walls 212 located on both sides of the base plate 211, and the swing member 22 includes a plate-shaped main body and reinforcing walls located on both sides of the plate-shaped main body; thus, both the base plate 21 and the swing member 22 are concave plate-shaped structures, which result in higher connection strength and allow for a smaller thickness while ensuring robustness. The materials of the base plate 21 and the swing member 22 are preferably metallic materials, such as iron plates or alloy plates.

[0068] The swing member 22 is hinged to the inner side of the two side walls 212, so that when the swing member 22 is covered on the base plate 21, the plate-shaped main body is in a state of parallel and close contact with the base plate. The two plate structures form an openable swing-and-fold mechanism, which has sufficient support strength for the bicycle X in the upright state. The hinged relationship between the two ensures that the bicycle X will not tilt in the locked state. Furthermore, the concave plate structure provides high strength when the bicycle is laid flat, and can strongly support the bicycle locking device to keep the bicycle fixed.

[0069] Furthermore, when the swing member covers the base plate, the combined thickness of the base plate and the swing member is preferably 5mm to 30mm. More preferably, the combined thickness is 8mm to 16mm. Within the preferred thickness range, the swing member and the base plate, due to their high strength achieved by employing a concave plate structure, can minimize the thickness of the upright / flat-layout dual-purpose mechanism. Therefore, even with this upright / flat-layout dual-purpose mechanism, the height of the bicycle rack is not significantly increased when the bicycle is upright, providing users with greater convenience and fewer negative impacts.

[0070] Furthermore, in the closed state, the reinforcing wall of the swing member and the side wall of the base plate are approximately parallel in height, thereby further reducing the thickness of the mechanism while ensuring the strength of the swing member and the base plate.

[0071] There are various ways to achieve the sliding fit between the first base frame 11 and the swing member 22. In this embodiment, the top of the swing member 22 is provided with a sliding groove plate 25, and the sliding groove plate 25 and the swing member 22 form a sliding groove through hole through which the first base frame 11 can slide. The structure that fits the rear wheel fixing seat 131 of the rear wheel fixing mechanism 13 and the corresponding swing member 22 also has a sliding groove through hole through which the first base frame 11 can slide.

[0072] Furthermore, the shape of the slide plate 25 is adapted to the shape of the side wall and top of the first base frame 11, thereby ensuring sliding fit while improving the stability of the interconnection. The design of the slide plate 25 is simple and can be achieved.

[0073] To address the potential stability issues of the cantilever beam structure when bicycle X is laid down, this embodiment also includes a bicycle frame support device 3. This support device 3 is mounted on the frame of the car roof. When the upright / flattening mechanism 2 lays bicycle X down, it supports the bicycle X's frame and / or wheels, preferably in the upper middle part of the bicycle X. The binding state between the bicycle X and the support device can be switched using binding components such as straps or buckles. In the bound state, the support device provides additional support to the bicycle X frame, preventing structural fatigue caused by center of gravity shift, improving stability during transportation, and extending the service life of the upright / flattening mechanism 2.

[0074] There are several ways to implement the bicycle frame support device 3, such as a sponge pad that is directly installed on the car roof frame, or a triangular fork bracket that is aligned with the bicycle X-frame.

[0075] Please refer to Figures 6-12 In this embodiment, the bicycle frame support device 3 includes a second base frame 31, a support member 32, and a support component 33.

[0076] The second base frame 31 is used to install on the frame of the car roof, providing basic support for the entire bicycle frame support device 3. The support member 32 is used to support the bicycle frame X when it is folded down, such as the handlebars, wheels, etc. The support assembly 33 is installed on the second base frame 31 to support the support member 32 and to space the support member 32 from the second base frame 31, thereby controlling the distance between various parts of the bicycle frame (such as the handlebars) and the roof, avoiding direct reliance on the roof for support, and further reducing the risk of scratches.

[0077] In this embodiment, the second base frame 31 can be securely installed on the frame of the car roof, and the support member 32 supports the bicycle X after it is laid down. This avoids the situation in traditional roof bicycle frames where the upper part of the bicycle X is suspended in the air as a cantilever beam structure after it is laid down, which reduces the lifespan of the roof bicycle frame. It also prevents the upper part of the bicycle X from being scratched or crushed by the roof due to shaking. Furthermore, the support component 33 separates the support member 32 from the second base frame 31, thereby controlling the various parts of the bicycle X, such as the handlebars, from being separated from the roof when the bicycle X is laid down and supported on the support member 32. This prevents the bicycle X from relying on the roof for support and prevents the bicycle X from being scratched or crushed by the roof due to shaking when riding on bumpy roads.

[0078] To enable rapid adaptation to different bicycle models X, the support component 33 adopts a sliding fit design, which can move along the length of the second base frame 31. The third position control component 34 can release or strengthen its fixed relationship with the second base frame 31.

[0079] Specifically, the top of the second base frame 31 is provided with a third top opening groove 311 along the length direction, and the bottom of the support component 33 is provided with a third sliding fixing plate that can be slidably fitted in the groove; a third adjusting fixing column is fixed on the third sliding fixing plate, which passes through the groove of the second base frame 31 and is threadedly engaged with a third hand-tightening knob nut. This structure also facilitates the installation of the third position control component 34.

[0080] When the position of support component 33 needs to be adjusted, rotate the third hand-tightening knob nut to loosen it, and the third sliding fixing plate can slide along the slide groove to the target position; after adjustment, rotate the third hand-tightening knob nut in the opposite direction to tighten it, thus locking the position of support component 33. This design can adapt to the roof width of different vehicle models through a simple threaded adjustment operation, which is convenient to operate and reliable in locking.

[0081] The support component 32 is preferably implemented as a support crossbar, with its length preferably set within the range of 50~100CM, thus adapting to the length of the bicycle X when it is folded down and ensuring support stability. This range can support the middle frame of the bicycle X, or simultaneously support the middle frame and wheels. In particular, during use, it can be selected to simultaneously support the bicycle X frame and front wheel. When the support crossbar reaches 100CM, it can support the bicycle X and both wheels, and be fixed in conjunction with the binding components.

[0082] To enhance the shock absorption effect, the outer perimeter of the supporting crossbar is wrapped with a buffer material layer (such as sponge, rubber, etc.), which can effectively absorb the vibration caused by road bumps during transportation, reduce the impact on the supporting crossbar, support component 33 and vehicle body, and extend the service life of the device.

[0083] The structure of the support component 33 is further optimized: the two ends of the supporting crossbar are fixedly connected to the support rod 331 made of steel pipe, and the bottom of the support rod 331 is provided with a support base to better slide and cooperate with the second base frame 31, thereby improving the support stability; in this embodiment, the support base is a plate-shaped structure that is adapted to the top of the second base frame 31, and the second adjusting and fixing column passes through the support base and cooperates with the third hand-tightening knob nut.

[0084] To further enhance the structural strength of the supporting crossbar, a reinforcing crossbeam 35 is added below the supporting crossbar. Both ends of the crossbeam 35 are fixedly connected to the support rod 331. Multiple hook rings 351 are provided on the reinforcing crossbeam 35, which can be used to bind auxiliary fixing straps or other accessories, thus expanding the application scenarios.

[0085] The support assembly 33 includes support rods 331 connected to both ends of the supporting crossbar and a support base located at the bottom of the support rods 331. Both the supporting crossbar and the support rods 331 are steel pipe structures. Because both the supporting crossbar and the support rods 331 are steel pipe structures, the aerodynamic performance and structural stability of the device are significantly optimized. Specifically, the effects are as follows:

[0086] The steel tube support crossbars and 331 possess high strength and low weight. Their rigid structure can evenly distribute the weight of the bicycle frame (such as the head and handlebars), preventing deformation or breakage due to excessive local stress and ensuring reliable support during long-term use. Furthermore, the streamlined cross-section of the steel tube (such as a circular or square tube) is more aerodynamic than other materials (such as aluminum alloy or plastic), effectively reducing wind resistance and noise at high speeds. Airflow smoothly transitions along the steel tube surface, reducing turbulence and thus lessening the load on the roof and improving riding stability.

[0087] In terms of structural stability, the steel pipe exhibits significantly better resistance to bending moment and torque than ordinary metals or composite materials. Even under conditions such as bumpy roads or sudden braking, the supporting crossbar and support rod 331 maintain good morphological stability, preventing the bicycle X from shifting or slipping due to swaying. Furthermore, the smooth surface treatment of the steel pipe (such as galvanizing or powder coating) further enhances corrosion resistance, extends the service life of the device, and ensures stable operation under various climatic conditions (such as humid and salt spray environments).

[0088] Furthermore, the supporting crossbars and support rods 331 of the steel pipe structure are connected by welding or high-strength bolts to form a rigid overall frame. When combined with the support base (such as a metal pressure plate), the weight of the vehicle body can be evenly transferred to the roof of the car, avoiding damage to the roof caused by localized concentrated force. This design not only improves the load-bearing capacity of the device itself, but also further reduces the risk of overall center of gravity shift by coordinating the force with the vehicle body, ensuring safety and reliability during transportation.

[0089] In this embodiment, to further enhance the structural strength of the supporting crossbar, a reinforcing crossbeam 35 is added below the supporting crossbar, with both ends fixedly connected to the support rod 331. Multiple hook rings 351 are provided on the reinforcing crossbeam 35 for binding auxiliary fixing straps or other accessories, expanding its application scenarios. Preferably, the supporting crossbar and the support rod 331 are detachably connected, such as by bolts in this embodiment; this facilitates product transportation.

[0090] To address the need for securing the bicycle X frame, the device is also equipped with binding components, such as Velcro straps. The reusable nature of Velcro allows for quick switching between the binding states of the bicycle X frame and the support device: when the bicycle X is laid down, the frame and / or wheels are attached to the support bar, then the Velcro straps are used to secure it – simple operation and effective fixation; upon arrival at the destination, the Velcro straps can be easily removed for quick unbinding, improving efficiency.

[0091] To accommodate the roof structures of different car models, the second base frame 31 is connected to the crossbar bracket 4 of the car roof via a detachable mounting and fixing mechanism 5. This detachable mounting and fixing mechanism 5 can be connected by bolts, snap-fit ​​connections, or other methods, making it easy to adjust the installation position of the second base frame 31 according to the shelf position of a specific car model, further expanding the applicability of the device.

[0092] Furthermore, in a preferred embodiment, the support assembly 33 is also provided with a height adjustment unit for adjusting the height gap between the support member 32 and the second base frame 31. For example, a telescopic sleeve structure can be provided on the support rod 331, and the effective height of the support rod 331 can be changed by adjusting the telescopic amount of the sleeve, thereby adjusting the height position of the supporting crossbar. This design can adapt to different bicycle models with varying body widths (such as wide-handle bicycles with handlebars), ensuring sufficient distance between the bicycle body and the roof to avoid contact friction.

[0093] In summary, the bicycle frame support device 3 of this embodiment achieves safe support for the bicycle X after it is laid down by the stable installation of the second base frame 31, the targeted support of the support member 32, the sliding adjustment and height adaptation of the support component 33, and the quick fixation of the binding component. It effectively solves the problems of easy damage to the cantilever beam and scratching of the roof in traditional structures. At the same time, it has good adaptability and ease of operation, and is suitable for various car roof bicycle X transportation scenarios.

[0094] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

Claims

1. A bicycle frame support device, characterized in that, include: The second base frame is used for mounting on the vehicle roof frame; Support components are used to support the bicycle frame and / or wheels when it is laid down. A support assembly, mounted on the second base frame, is used to support the support member and to space the support member from the second base frame.

2. The bicycle frame support device according to claim 1, characterized in that, The support component is slidably mounted on the second base frame; and includes a third position control component for releasing and reinforcing the fixed relationship with the second base frame.

3. The bicycle frame support device according to claim 2, characterized in that, The second base frame has a third top-opening slide groove arranged along its length; The third position control component includes a third sliding fixing plate that can be slidably fitted in the third top opening slide groove, a third adjusting fixing column that is fixed on the third sliding fixing plate and passes through the support component, and a third hand-tightening knob nut that is threadedly engaged with the upper part of the third adjusting fixing column.

4. The bicycle frame support device according to claim 1, characterized in that, The supporting component is a supporting crossbar, which is arranged approximately parallel to the second base frame, and the length of the supporting crossbar is 50~100CM.

5. The bicycle frame support device according to claim 4, characterized in that, The outer periphery of the supporting crossbar is wrapped with a layer of cushioning material; The support assembly includes a support rod connected to both ends of the supporting crossbar and a support base located at the bottom of the support rod. Both the supporting crossbar and the support rod are steel pipe structures. It also includes a reinforcing beam, the two ends of which are fixedly connected to the support rod and located below the supporting crossbar. The reinforcing beam is provided with multiple hook rings.

6. The bicycle frame support device according to claim 1, characterized in that, It also includes a binding component, which is used to switch the binding and unbinding states between the bicycle frame and the bicycle frame support device.

7. The bicycle frame support device according to claim 6, characterized in that, The binding component is a Velcro strap, a self-locking cord, or a self-locking strap.

8. The bicycle frame support device according to claim 2, characterized in that, The vehicle roof frame includes at least two crossbar supports, which are used for laterally fixing to the shelves on both sides of the roof. The bicycle frame support device also includes a detachable mounting and fixing mechanism, through which the second base frame is detachably and fixedly connected to the crossbar bracket.

9. A roof-mounted bicycle rack, characterized in that, Includes a bicycle locking device, a dual-purpose upright and flat-lay mechanism, and a bicycle frame support device as described in any one of claims 1 to 8; The bicycle locking device is used to secure the wheels or frame of the bicycle. A dual-purpose upright and flat-laying mechanism, which can lay down the bicycle locking device so that the fixed bicycle can be laid down accordingly; The bicycle frame support device is used to support the bicycle frame after it has been laid down.

10. The roof-mounted bicycle rack according to claim 9, characterized in that, The upright and flat-laying dual-purpose mechanism includes a base plate and a swing member hinged to the base plate. The base plate is used to be mounted on a frame on the roof of a car. The swing member is connected to the bicycle locking device so as to drive the bicycle locking device to swing together with the swing member. The bicycle locking device includes a first base frame, which is long and narrow, and is slidably mounted on the swing member.

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