A two-purpose roof bicycle rack

Abstract

The utility model provides a kind of straight up and lay flat two-purpose roof bicycle frame, including bicycle locking device and straight up and lay flat two-purpose mechanism.Bicycle locking device is used to fix the wheel or car body of bicycle;Straight up and lay flat two-purpose mechanism includes base plate piece, swing piece hinged on base plate piece, for the control swing piece and base plate piece in relatively fastening state and relatively swingable state switch over and lay down locking assembly;The base plate piece is used to be installed on the frame of automobile roof, the swing piece is connected with the bicycle locking device, to drive the bicycle locking device swing with the swing piece.By setting straight up and lay flat two-purpose mechanism, the bicycle fixed in bicycle locking device can be laid down on roof, and through the simple design of simple base plate piece, swing piece hinged on base plate piece, lay down locking assembly, it can be realized that the bicycle can be straight up and fixed normal transportation, and it is convenient to lay down bicycle, thereby reducing overall height.

Description

Technical Field

[0001] This utility model relates to the field of rooftop bicycle racks, specifically to a rooftop bicycle rack that can be used both upright and horizontally. 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, which makes the height of the car plus the bicycle quite high, potentially preventing it from passing over some height limit bars and causing inconvenience to the driver. Some roof racks can be laid flat for fixing, but cannot be used to fix the bicycle vertically at the same time.

[0003] Therefore, a roof-mounted bicycle rack is needed that can both hold the bicycle upright for normal transport and allow it to be laid down on specific roads to reduce the overall height of the bicycle.

[0004] In view of the above, this application is hereby submitted. Summary of the Invention

[0005] This utility model provides a roof-mounted bicycle rack that can be used upright or flat, in order to solve at least one of the above-mentioned technical problems.

[0006] A roof-mounted bicycle rack that can be used upright or flat includes a bicycle locking device and a mechanism that can be used both upright and flat.

[0007] A bicycle locking device is used to secure the wheels or frame of a bicycle; a dual-purpose upright and flat-lay mechanism includes a base plate, a swing member hinged to the base plate, and a folding locking assembly for switching between a relatively fixed state and a relatively swingable state between the swing member and the base plate; the base plate is used to be mounted on a frame on the roof of a car, and 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.

[0008] Furthermore, the reclining locking assembly includes a first hand-tightening knob bolt and a first threaded hole disposed on the base plate, wherein the first hand-tightening knob bolt passes through the swing member and is threadedly engaged with the first threaded hole;

[0009] Alternatively, the tilting and locking assembly may include a first hand-tightening knob nut and a first bolt disposed on the base plate, the first bolt passing through the swing member and threadedly engaging with the first hand-tightening knob nut.

[0010] Furthermore, the bicycle locking device includes a first base frame, which is elongated and mounted on the swing member;

[0011] The bicycle locking device also includes a front wheel fixing mechanism for fixing the front wheel of the bicycle and a rear wheel fixing mechanism for fixing the rear wheel of the bicycle.

[0012] The front wheel fixing mechanism is mounted on the first base frame, and the rear wheel fixing mechanism is slidably disposed on the first base frame, and includes a first position control component for releasing and reinforcing the fixing relationship with the first base frame.

[0013] Furthermore, there are at least two of the upright and flat-laying dual-purpose mechanisms, and the first base frame is slidably mounted on the swing member.

[0014] Furthermore, the upright and flat dual-purpose mechanism and the rear wheel fixing mechanism are fixedly connected;

[0015] The first base frame has a first top opening slide groove arranged along its length; the rear wheel fixing mechanism includes a rear wheel fixing seat that slides into the first top opening slide groove to adapt to different bicycle wheel wheel wheel track.

[0016] The first position control component includes a second hand-tightening knob nut, a rear wheel fixing plate, a first sliding fixing plate that can be slidably fitted in the first top opening groove, and a first adjusting fixing post that is fixed to the first sliding fixing plate and passes 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 body or is fixedly connected to the rear wheel fixing seat body.

[0017] The rear wheel fixing seat and the corresponding swing component of the upright and flat dual-purpose mechanism are fixedly connected.

[0018] Furthermore, the vehicle roof frame also includes at least two crossbar supports, which are used for horizontally fixing to the shelves on both sides of the roof; the base plate of the upright and flat dual-use mechanism can be fixedly connected to the crossbar supports.

[0019] Furthermore, the base plate is slidably engaged with the crossbar support and has a second position control component for releasing and reinforcing the fixed relationship with the crossbar support;

[0020] The crossbar support has a second top opening slide groove arranged in its length direction. The second position control component includes a second sliding fixing plate that can be slidably fitted in the second top opening slide groove, a second adjusting fixing post fixed on the second sliding fixing plate and passing through the base plate, and a fastening nut for threaded engagement with the upper part of the second adjusting fixing post.

[0021] Furthermore, the base plate includes a base plate and side walls located on the base plate, and the swing member is hinged to the inner side of the two side walls so that when the swing member is covered on the base plate, it is in a state of parallel contact with the base plate.

[0022] The top of the swing member is provided with a sliding plate, and the sliding plate and the swing member form a sliding through hole through which the first base frame can slide.

[0023] Furthermore, it also includes a bicycle frame support device, which is used to be installed on the frame on the roof of a car and can support the bicycle frame or wheels after the bicycle is laid down by the upright and flat-laying mechanism.

[0024] Furthermore, the bicycle frame support device also includes a binding component, which is used to switch the binding state and unbinding state between the bicycle frame and the bicycle frame support device.

[0025] This utility model relates to a roof-mounted bicycle rack that can be used both upright and flat. By setting up an upright and flat-laying mechanism, it is possible to lay down a bicycle that is fixed to a bicycle locking device on the roof. Through the simple design of a simple base plate, a swinging component hinged to the base plate, and a folding locking component for controlling the swinging component and the base plate to switch between a relatively fixed state and a relatively swinging state, it is possible to achieve the following: the bicycle can be upright and fixed for normal transportation, and it is also convenient to lay down the bicycle on certain roads to reduce the overall height of the bicycle.

[0026] Furthermore, the folding and locking assembly can be quickly and easily switched between the two states by turning the knob, making it convenient for users.

[0027] Furthermore, the base plate includes a base plate and side walls located on both sides of the base plate. The swing member also adopts a concave structure. The swing member is hinged to the inner side of the two side walls so that when the swing member is covered inside the base plate, it is in a state of parallel contact with the base plate. The two concave plate structures form an openable swing and folding mechanism, which has sufficient support strength for the bicycle in the upright state. Also, because of the hinge relationship between the two, the bicycle will not tilt in the fixed state.

[0028] Furthermore, by setting the swing member to cover the base plate, the combined thickness of the base plate and the swing member is 5mm to 30mm. Both the swing member and the base plate employ a concave plate structure for high strength, thereby minimizing the thickness of the upright / flat-layout mechanism. Thus, even with this upright / flat-layout mechanism, the height of the bicycle rack used for mounting a bicycle upright is not significantly increased, providing users with greater convenience and fewer negative impacts. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the roof-mounted bicycle rack that can be used upright or flat according to an embodiment of this utility model;

[0030] Figure 2 yes Figure 1 A schematic diagram of a bicycle locking device and a mechanism that can be used both upright and flat.

[0031] Figure 3 yes Figure 2 A schematic diagram of the overall structure of the upright and flat-laying dual-purpose mechanism;

[0032] Figure 4 yes Figure 1 A schematic diagram of the upright and horizontal dual-purpose mechanism for fixing the rear wheel;

[0033] Figure 5 yes Figure 4 A structural diagram from a second perspective;

[0034] Figure 6 yes Figure 1 A schematic diagram of the structure of a bicycle frame support device;

[0035] Figure 7 yes Figure 1 A schematic diagram of the overall structure of the crossbar support;

[0036] Figure 8 yes Figure 7 A schematic diagram of the structure in its collapsed state;

[0037] Figure 9 yes Figure 8 A structural diagram from a second perspective;

[0038] Figure 10 yes Figure 9 A structural diagram from a second perspective;

[0039] Figure 11 yes Figure 7 A schematic diagram of the overall structure of a stationary bicycle;

[0040] Figure 12 yes Figure 11A schematic diagram of a bicycle in a laid-down position.

[0041] Figure label:

[0042] 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;

[0043] 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;

[0044] 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;

[0045] 4. Crossbar support; 41. Second top opening slide groove;

[0046] 5. Detachable mounting and fixing mechanism;

[0047] X, bicycle. Detailed Implementation

[0048] 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.

[0049] 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.

[0050] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0051] Please refer to Figures 1 to 12 A roof-mounted bicycle rack that can be used both upright and horizontally is mainly used to securely fix 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 when needed, such as when passing through areas with height restrictions, adapting to different road conditions. Its core structure includes a bicycle locking device 1 and a vertical / horizontal dual-use mechanism 2. The bicycle locking device 1 is used to secure the wheels or frame of the bicycle X, while the vertical / horizontal dual-use mechanism 2 uses a swingable structure to switch between the vertically fixed state and the folded fixed state of the bicycle X.

[0052] The bicycle locking device 1 is used to secure the wheels or frame of the bicycle X. The specific structural form of the bicycle locking device 1 is not limited here; it only needs to secure the bicycle X and maintain proper fixation of the bicycle X even when switching between the upright and folded-down positions using the dual-purpose upright and folded-down mechanism 2. In this embodiment, the bicycle locking device 1 secures the bicycle X by fixing its front and rear wheels.

[0053] 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.

[0054] 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.

[0055] 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 fix the bicycle X vertically for normal transportation, and also to lay the bicycle X down on specific roads to reduce the overall height of the vehicle.

[0056] 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 simpler terms, the swing member 22 has a through hole or slot corresponding to the first hand-tightening knob bolt.

[0057] 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.

[0058] 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.

[0059] The bicycle locking device 1 includes a front wheel fixing mechanism 12 for fixing the front wheel of the bicycle X, and a rear wheel fixing mechanism 13 for fixing the rear wheel of the bicycle X; and includes a first base frame 11, which is elongated and mounted on the swing member 22.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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 down bicycle X, it supports the upper part of the bicycle X. The binding state between the bicycle X and the support device can be switched via binding components such as straps or buckles. In the bound state, the support device provides additional support to the bicycle X, preventing structural fatigue caused by center of gravity shift, improving stability during transportation, and extending the service life of the upright / flattening mechanism 2.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] In this embodiment, the second base frame 31 can be firmly installed on the frame on the roof of the car, and the support member 32 is used to support the bicycle X body after it is laid down; thus avoiding the situation in traditional roof bicycle frames where the upper half of the bicycle X is suspended in the air after it is laid down, forming a cantilever beam structure, which reduces the lifespan of the roof bicycle frame, and also preventing the bicycle X body from being scratched or crushed by shaking.

[0082] Furthermore, by using the support component 33 to separate the support member 32 from the second base frame 31, it is possible to control the various parts of the upper part of the bicycle X, such as the handlebars, from the roof when the bicycle X is laid down and supported on the support member 32, so as to avoid relying on the roof for support and to prevent the bicycle X from being scratched or crushed on the roof due to shaking when riding on bumpy roads.

[0083] 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.

[0084] 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 assembly 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, and the third adjusting fixing column passes through the groove of the second base frame 31 and is threadedly fitted with a third hand-tightening knob nut.

[0085] 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.

[0086] The support component 32 is preferably implemented as a support crossbar, with its length preferably set in the range of 50~100CM, so as to match the length of the bicycle X after it is laid down and ensure support stability. This range can support the middle frame of the bicycle X, or support the middle frame and wheels at the same time.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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:

[0091] 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.

[0092] 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).

[0093] 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 rubber pad or metal pressure plate), the weight of the vehicle body can be evenly distributed to the roof, avoiding damage to the roof caused by concentrated localized forces. This design not only enhances the load-bearing capacity of the device itself but also further reduces the risk of overall center of gravity shift through coordinated force distribution with the vehicle body, ensuring safety and reliability during transportation.

[0094] 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, which can be used to bind auxiliary fixing straps or other accessories, thus expanding the application scenarios.

[0095] To address the need for securing the bicycle X to its 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 and the support device: when the bicycle X is laid down, the upper and middle parts of the frame or wheels are attached to the support crossbar, then secured with Velcro straps – a simple and effective method; upon arrival at the destination, the Velcro straps can be easily removed for quick unbinding, improving efficiency.

[0096] 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.

[0097] 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 the body height of different types of bicycles X (such as the handlebars of wide-handle bicycles X), ensuring that the body and the roof maintain sufficient distance to avoid contact friction.

[0098] 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.

[0099] 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 roof-mounted bicycle rack that can be used upright or horizontally, characterized in that, include: Bicycle locking devices are used to secure the wheels or frame of a bicycle. A dual-purpose upright and flat-lay mechanism includes a base plate, a swinging member hinged to the base plate, and a folding locking assembly for switching the control swinging member and the base plate between a relatively fixed state and a relatively swinging state. The base plate is used to be mounted on the 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.

2. The dual-purpose (vertical and horizontal) roof-mounted bicycle rack according to claim 1, characterized in that, The reclining locking assembly includes a first hand-tightening knob bolt and a first threaded hole disposed on the base plate, wherein the first hand-tightening knob bolt passes through the swing member and is threadedly engaged with the first threaded hole; Alternatively, the tilting and locking assembly may include a first hand-tightening knob nut and a first bolt disposed on the base plate, the first bolt passing through the swing member and threadedly engaging with the first hand-tightening knob nut.

3. The dual-purpose (vertical and horizontal) roof-mounted bicycle rack according to claim 1, characterized in that, The base plate includes a base plate and side walls located on both sides of the base plate. The swing member includes a plate-shaped main body and reinforcing walls located on both sides of the plate-shaped main body. The swing member is hinged to the inner side of the two side walls so that when the swing member is covered on the base plate, the plate-shaped main body is in a state of parallel and close contact with the base plate.

4. The dual-purpose (vertical and horizontal) roof-mounted bicycle rack according to claim 3, characterized in that, When the swinging member is attached to the base plate, the combined thickness of the base plate and the swinging member is 5mm to 30mm.

5. The dual-purpose (vertical and horizontal) roof-mounted bicycle rack according to claim 3, characterized in that, The bicycle locking device includes a first base frame, which is elongated and mounted on the swing member. The bicycle locking device also includes a front wheel fixing mechanism for fixing the front wheel of the bicycle and a rear wheel fixing mechanism for fixing the rear wheel of the bicycle. The front wheel fixing mechanism is mounted on the first base frame, and the rear wheel fixing mechanism is slidably disposed on the first base frame, and includes a first position control component for releasing and reinforcing the fixing relationship with the first base frame.

6. The dual-purpose (vertical and horizontal) roof-mounted bicycle rack according to claim 5, characterized in that, There are at least two upright and flat-laying dual-purpose mechanisms, one of which is fixedly connected to the rear wheel fixing mechanism; and the first base frame is slidably mounted on the swing member. The top of the swing member is provided with a sliding plate, and the sliding plate and the swing member form a sliding through hole through which the first base frame can slide.

7. The dual-purpose (vertical and horizontal) roof-mounted bicycle rack according to claim 6, characterized in that, The first base frame has a first top opening slide groove arranged along its length; the rear wheel fixing mechanism includes a rear wheel fixing seat that slides into the first top opening slide groove to adapt to different bicycle wheel wheel wheel track. The first position control component includes a second hand-tightening knob nut, a rear wheel fixing plate, a first sliding fixing plate that can be slidably fitted in the first top opening groove, and a first adjusting fixing post that is fixed to the first sliding fixing plate and passes 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 body or is fixedly connected to the rear wheel fixing seat body. The rear wheel fixing seat and the corresponding swing component of the upright and flat dual-purpose mechanism are fixedly connected.

8. The dual-purpose (vertical and horizontal) roof-mounted bicycle rack according to claim 6, characterized in that, The vehicle roof frame also includes at least two crossbar supports, which are used for horizontally fixing to the shelves on both sides of the roof; the base plate of the upright and flat dual-use mechanism can be fixedly connected to the crossbar supports; the base plate is slidably engaged with the crossbar supports and has a second position control component for releasing and reinforcing the fixed relationship with the crossbar supports. The crossbar support has a second top opening slide groove arranged in its length direction. The second position control component includes a second sliding fixing plate that can be slidably fitted in the second top opening slide groove, a second adjusting fixing post fixed on the second sliding fixing plate and passing through the base plate, and a fastening nut for threaded engagement with the upper part of the second adjusting fixing post.

9. The dual-purpose (vertical and horizontal) roof-mounted bicycle rack according to claim 1, characterized in that, It also includes a bicycle frame support device, which is used to be mounted on the frame on the roof of a car and can support the bicycle frame and / or wheels after the bicycle is laid down by the upright and flat-laying mechanism.

10. The dual-purpose (vertical and horizontal) roof-mounted bicycle rack according to claim 9, characterized in that, The bicycle frame support device also includes a binding component, which is used to switch the binding state and unbinding state between the bicycle frame and the bicycle frame support device.

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