Auxiliary ramp for vehicle-mounted bicycle frame

Abstract

The utility model relates to the field of vehicle-mounted bicycle frames, and provides an auxiliary ramp for a vehicle-mounted bicycle frame, which comprises a ramp main body, the bottom end of the ramp main body is propped against the ground, and the top end of the ramp main body is connected with the vehicle-mounted bicycle frame; a universal support is installed at the bottom end of the ramp body, and the bottom edge of the universal support abuts against the ground all the time. According to the utility model, the universal bracket is arranged at the bottom end of the ramp main body, so that the auxiliary ramp can be in butt joint with vehicle-mounted bicycle frames with different heights within an allowable length range, the mounting requirements of the vehicle-mounted bicycle frames with different heights are met, and the application range is wide; anti-skid sawteeth are arranged at the bottom of the universal bracket to ensure the stability; the multiple ramp bodies are rotationally connected through the rotating structures, folding of the ramp bodies is achieved, and storage is convenient. And the butt joint table at the top end is rotationally connected with the ramp body, mounting of the vehicle-mounted bicycle frames of different heights can be adapted, the butt joint table can be clamped to the vehicle-mounted bicycle frames of different heights, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to the field of bicycle racks, and in particular to an auxiliary ramp for bicycle racks. Background Technology

[0002] Bicycle racks are used to load and transport bicycles during driving, facilitating their transport to outdoor riding. Some bicycle racks are installed at the rear of the vehicle, while others are installed on the roof. When mounting a bicycle, especially to a bicycle rack mounted at the rear of the vehicle, a ramp is sometimes used to help push the bicycle onto the rack. However, existing ramps have a fixed angle and can only be used for bicycles mounted on racks of one height, limiting their applicability. Utility Model Content

[0003] This utility model proposes an auxiliary ramp for bicycle racks. By setting a universal bracket at the bottom of the ramp body, the auxiliary ramp can connect with bicycle racks of different heights within the allowable length range, thus meeting the installation needs of bicycle racks of different heights and having a wide range of applications. At the same time, anti-slip serrations are set at the bottom of the universal bracket to ensure the stability of the universal bracket. In addition, the ramp body is set as multiple parts connected by a rotating structure, which realizes the folding of the ramp body and makes it easier to store. Furthermore, the docking platform at the top is rotatably connected to the ramp body, which can adapt to the installation of bicycle racks of different heights, allowing the docking platform to snap onto bicycle racks of different heights, thus having a wide range of applications.

[0004] The technical solution of this utility model is implemented as follows:

[0005] An auxiliary ramp for a bicycle rack includes: a ramp body, the bottom end of which abuts against the ground and the top end which is connected to the bicycle rack;

[0006] A docking platform is provided at the top of the main body of the ramp;

[0007] The docking platform includes a hinge plate, a hinge cylinder, a bridging plate, a support block, and a limiting plate;

[0008] The hinge plate is integrally formed on one bottom end of the bridge plate;

[0009] The hinge cylinder is installed at the bottom end of the hinge plate;

[0010] The hinged cylinder is rotatably mounted on the top of the ramp body;

[0011] The vehicle-mounted bicycle frame is equipped with a tire bracket, and the bridge plate has the same shape as the top surface of the tire bracket, with the bridge plate overlapping the tire bracket;

[0012] The support block is disposed at the bottom of the bridge plate, the tire bracket is provided with a limiting groove, the outer end of the tire bracket is provided with a blocking block, the support block is supported in the limiting groove, and the support block is engaged with the inner side of the blocking block.

[0013] The limiting plate is disposed at the front end of the bridging plate, and the limiting plate is snapped into the limiting groove.

[0014] Furthermore, the docking platform is installed on the top of the ramp body via a rotating structure C;

[0015] The rotating structure C includes a rotating hole C;

[0016] The hinged cylinder is rotatably connected to the rotating hole C.

[0017] Furthermore, a universal support is installed at the bottom of the ramp body, and the bottom edge of the universal support is always in contact with the ground.

[0018] The universal bracket includes a first support plate, a second support plate, and a pull plate;

[0019] The first support plate and the second support plate have the same structure, and the first support plate and the second support plate are symmetrically installed on both sides of the bottom end of the ramp body;

[0020] The first support plate and the second support plate are rotatably connected to the ramp body;

[0021] The two ends of the pull plate are respectively connected to the inner sidewalls of the first support plate and the second support plate.

[0022] Furthermore, both the bottom of the first support plate and the second support plate are provided with anti-slip serrations.

[0023] Furthermore, both the first support plate and the second support plate are triangular support plates.

[0024] Furthermore, the ramp body is a ramp body made of profile material;

[0025] The ramp body includes a groove and a first support cavity and a second support cavity symmetrically arranged on both sides of the groove;

[0026] The first support cavity and the second support cavity are integrally formed on both sides of the groove portion;

[0027] The first support plate is installed on the outer side of the first support cavity;

[0028] The second support plate is installed on the outer side of the second support cavity;

[0029] The top surfaces of the first support cavity and the second support cavity form a bicycle ramp.

[0030] Furthermore, the top surfaces of both the first support cavity and the second support cavity are arc-shaped surfaces.

[0031] Furthermore, the ramp body is provided in two parts, and the two ramp bodies are rotatably connected by a rotating structure;

[0032] The two ramp bodies are respectively equipped with rotating structure A and rotating structure B at their connecting ends, and rotating structure A and rotating structure B are rotatably connected; rotating structure A, rotating structure B and rotating structure C have the same structure;

[0033] The rotating structure A includes a docking plate A, a first connecting plate A, a second connecting plate A, a first docking cavity A, a second docking cavity A, a rotating hole A, and a rotating shaft A. The first connecting plate A, the second connecting plate A, the first docking cavity A, and the second docking cavity A are all mounted on the docking plate A, with the first connecting plate A and the second connecting plate A positioned vertically. The first docking cavity A is simultaneously connected to the left ends of both the first and second connecting plates A. The second docking cavity A is simultaneously connected to the right ends of both the first and second connecting plates A. The first docking cavity A is inserted into the first supporting cavity and connected to it by bolts, and the second docking cavity A is inserted into the second supporting cavity and connected to it by bolts. The first connecting plate A and the second connecting plate A are respectively clamped to the upper and lower sides of the bottom plate of the groove portion. The first connecting plate A, the second connecting plate A, and the bottom plate of the groove portion are connected by bolts. A rotating plate is provided at the bottom end of the second connecting plate A, and the rotating hole A is provided on the rotating plate.

[0034] The rotating shaft A is installed in the rotating hole A on the adjacent ramp body at the same time;

[0035] The support block is supported within the groove when the two ramp bodies are folded.

[0036] Furthermore, a plug is installed at the bottom of the main body of the ramp;

[0037] The plug includes a sealing plate, a third docking cavity, a fourth docking cavity, a fifth docking cavity, a first barb, and a second barb;

[0038] The third, fourth, and fifth docking cavities are all disposed on the sealing surface of the sealing plate. The third and fourth docking cavities are symmetrically arranged with respect to the fifth docking cavity. The third docking cavity is inserted into the first support cavity, the fourth docking cavity is inserted into the second support cavity, and the fifth docking cavity is engaged with the groove portion.

[0039] The fifth docking cavity is connected to the groove portion by bolts;

[0040] The first barb is disposed in the third docking cavity, and the bottom of the first supporting cavity is provided with a first locking hole, and the first barb cooperates with the first locking hole;

[0041] The second barb is disposed in the fourth docking cavity, and the bottom of the second support cavity is provided with a second locking hole, and the second barb cooperates with the second locking hole.

[0042] Furthermore, reinforcing ribs are provided at the connection points between the first barb and the sealing plate, as well as at the connection points between the second barb and the sealing plate.

[0043] This utility model features a universal bracket at the bottom of the ramp body, allowing the auxiliary ramp to connect with bicycle racks of different heights within its allowable length range, thus meeting the installation needs of bicycle racks of varying heights and offering a wide range of applications. Anti-slip serrations at the bottom of the universal bracket ensure its stability. Furthermore, the ramp body is designed with multiple rotating components connected by a rotatable structure, enabling folding of the ramp body for easier storage. The top docking platform is rotatably connected to the ramp body, accommodating bicycle racks of different heights and allowing the platform to snap onto racks of varying heights, further enhancing its versatility. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the structure of an auxiliary ramp for a bicycle rack connecting to a tire bracket in a specific embodiment of this utility model;

[0046] Figure 2 for Figure 1 The diagram shows a structural cross-sectional view of the main body of the first ramp of an auxiliary ramp for a vehicle-mounted bicycle rack.

[0047] Figure 3 for Figure 1 The diagram shows a structural cross-sectional view of the main body of the second ramp of an auxiliary ramp for a vehicle-mounted bicycle rack.

[0048] Figure 4 for Figure 1 The diagram shows a structural schematic of a plug for an auxiliary ramp on a bicycle rack.

[0049] Figure 5 for Figure 1 The diagram shows the interaction between rotating structure A and rotating structure B of an auxiliary ramp for a bicycle rack.

[0050] Figure 6 for Figure 5 The schematic diagram of the rotating structure B shown is shown below;

[0051] Figure 7 for Figure 1 The diagram shows the connection relationship between the docking platform and the rotating structure C of an auxiliary ramp for a vehicle-mounted bicycle frame.

[0052] Figure 8 for Figure 1 The diagram shows a cross-sectional view of an auxiliary ramp for a bicycle rack that connects to a tire carrier.

[0053] Figure 9 for Figure 8 The enlarged view of the structure at point D is shown below;

[0054] Explanation of reference numerals in the attached drawings: First ramp body 1; First groove 11; First support cavity 12; First locking hole 121; Second support cavity 13; Second locking hole 131; Second ramp body 1'; Second groove 11'; Third support cavity 12'; Fourth support cavity 13'; Universal bracket 2; First support plate 21; Second support plate 22; Pull plate 23; Anti-slip serrations 24; Rotating structure A3; Butt joint plate A37; First connecting plate A31; Second connecting plate A32; First butt joint cavity A33; Second butt joint cavity A34; Rotating hole A35; Rotating plate A 36; Rotating structure B4; Docking plate B47; First connecting plate B41; Second connecting plate B42; First docking cavity B43; Second docking cavity B44; Rotating hole B45; Rotating plate B46; Rotating shaft 304; Rotating structure C5; Rotating hole C55; Docking platform 6; Hinge plate 61; Hinge cylinder 62; Bridging plate 63; Support block 64; Limiting plate 65; Tire bracket 7; Limiting groove 71; Block 72; Plug 8; Sealing plate 81; Third docking cavity 82; Fourth docking cavity 83; Fifth docking cavity 84; First barb 85; Second barb 86. Detailed Implementation

[0055] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0056] In a specific embodiment of this utility model, see Figures 1-9 An auxiliary ramp for a bicycle rack includes: a ramp body, the bottom end of which abuts against the ground and the top end which is connected to the bicycle rack;

[0057] In a specific embodiment of this utility model, see Figures 1-9 The ramp body is provided in two parts, namely a first ramp body 1 and a second ramp body 1'; the first ramp body 1 and the second ramp body 1' are rotatably connected by a rotating structure, and the first ramp body 1 and the second ramp body 1' connected by the rotating structure can be folded in half;

[0058] The ramp body is made of profile material and is a one-piece structure with a hollow interior, which can effectively reduce weight.

[0059] Taking the first ramp body 1 as an example; the first ramp body 1 is divided into a first groove 11 and a first support cavity 12 and a second support cavity 13 symmetrically arranged on both sides of the first groove 11; the first groove 11 facilitates the installation of the plug 8 and the rotating structure below with bolts, provides installation space for bolts, and can save some materials and reduce the overall weight;

[0060] The first support cavity 12 and the second support cavity 13 are integrally formed on both sides of the first groove portion 11;

[0061] The top surfaces of the first support cavity 12 and the second support cavity 13 form a bicycle crawling ramp, which provides a track for the bicycle tires, allowing the bicycle to be smoothly pushed onto the bicycle rack.

[0062] The second ramp body 1' is divided into a second groove 11' and a third support cavity 12' and a fourth support cavity 13' symmetrically arranged on both sides of the second and first grooves 11'.

[0063] In a specific embodiment of this utility model, see Figures 1-9 The top of the second ramp body 1' is equipped with a rotating structure C5, and a docking platform 6 is installed on the rotating structure C5;

[0064] The docking platform 6 includes a hinge plate 61, a hinge cylinder 62, and a bridging plate 63;

[0065] The hinge plate 61 is integrally formed on one bottom end of the bridge plate 63;

[0066] The hinge cylinder 62 is installed at the bottom end of the hinge plate 61;

[0067] The hinge cylinder 62 is hinged to the rotation hole C55 of the connected rotating structure C5, and the folding and extension of the docking platform 6 relative to the second ramp body 1' is realized through the rotational connection between the rotation hole C55 and the hinge cylinder 62.

[0068] The bicycle rack is equipped with a tire bracket 7, and the bridging plate 63 has the same shape as the tire bracket 7. The bridging plate 63 overlaps the tire bracket 7.

[0069] In a specific embodiment of this utility model, see Figures 1-9 The bottom of the docking platform 6 is provided with a support block 64, and one or more support blocks 64 are provided to provide support for the docking platform 6;

[0070] The tire bracket 7 is provided with a limiting groove 71, and the support block 64 is supported in the limiting groove 71. The support block 64 is limited in the limiting groove 71 to prevent the bridge plate 63 from sliding down during use.

[0071] Alternatively, the support block 64 is supported in the first groove 11 when the two first ramp bodies 1 and the second ramp body 1' are in a folded state; in the folded state, the support block 64 can be locked in the first groove 11 and blocked by the plug to prevent the support block 64 from leaving the first groove 11, ensuring that the first ramp body 1 and the second ramp body 1' will not easily extend automatically after being folded.

[0072] The outer end of the tire bracket 7 is provided with a blocking block 72, and the support block 64 is supported in the limiting groove 71. At the same time, the support block 64 is engaged with the inner side of the blocking block 72. The support block 64 is blocked by the blocking block 72, so that the bridge plate 63 will not slide down, thus ensuring the stability of the connection between the bridge plate 63 and the tire bracket 7.

[0073] In a specific embodiment of this utility model, see Figures 1-9 The front end of the bridging plate 63 is provided with a limiting plate 65, which is snapped into the limiting groove 71.

[0074] When installing the auxiliary ramp, first, vertically place the limiting plate 65 into the limiting groove 71. The limiting groove 71 and the first groove 11 have the same structure, with two small baffles at the top. After the limiting plate 65 is placed into the limiting groove 71, rotate the limiting plate 65 90° so that the limiting plate 65 is parallel to the top surface of the tire bracket 7. At this time, the limiting plate 65 is stuck at the bottom of the two small baffles and stuck in the limiting groove 71, so that the bridge plate 63 will not tilt up. With the interaction with the blocking block 72, it is ensured that the bridge plate 63 and the tire bracket 7 will not separate.

[0075] In a specific embodiment of this utility model, see Figures 1-9 The rotating structure is installed at the docking ends of the first ramp body 1 and the second ramp body 1'. The rotating structure A3 is installed at the docking end of the first ramp body 1, and the rotating structure B4 is installed at the docking end of the second ramp body 1'. The rotating structure A3 and the rotating structure B4 are rotatably connected.

[0076] The rotating structure A3 includes a docking plate A37, a first connecting plate A31, a second connecting plate A32, a first docking cavity A33, a second docking cavity A34, and a rotating hole A35. The first connecting plate A31, the second connecting plate A32, the first docking cavity A33, and the second docking cavity A34 are all mounted on the docking plate A37. The first connecting plate A31 and the second connecting plate A32 are arranged vertically. The first docking cavity A33 is simultaneously connected to the left end of both the first connecting plate A31 and the second connecting plate A32. The second docking cavity A34 is simultaneously connected to the right end of both the first connecting plate A31 and the second connecting plate A32. End connection; the first docking cavity A33 is inserted into the first supporting cavity 12 and connected to the first supporting cavity 12 by bolts; the second docking cavity A34 is inserted into the second supporting cavity 13 and connected to the second supporting cavity 13 by bolts; the first connecting plate A31 and the second connecting plate A32 are respectively clamped on the upper and lower sides of the bottom plate of the first groove 11, and the first connecting plate A31, the second connecting plate A32 and the bottom plate of the first groove 11 are connected by bolts; a rotating plate A36 is provided at the bottom end of the second connecting plate A32; the rotating hole A35 is provided on the rotating plate A36;

[0077] The rotating structure B4 includes a docking plate B47, a first connecting plate B41, a second connecting plate B42, a first docking cavity B43, a second docking cavity B44, and a rotating hole B45. The first connecting plate B41, the second connecting plate B42, the first docking cavity B43, and the second docking cavity B44 are all mounted on the docking plate B47. The first connecting plate B41 and the second connecting plate B42 are positioned vertically. The first docking cavity B43 is simultaneously connected to the left ends of both the first connecting plate B41 and the second connecting plate B42. The second docking cavity B44 is simultaneously connected to the right ends of both the first connecting plate B41 and the second connecting plate B42. The first docking cavity B43 is inserted into the third supporting cavity 12' and connected to the third supporting cavity 12' by bolts; the second docking cavity B44 is inserted into the fourth supporting cavity 13' and connected to the fourth supporting cavity 13' by bolts; the first connecting plate B41 and the second connecting plate B42 are respectively clamped on the upper and lower sides of the bottom plate of the second groove 11'; the first connecting plate B41, the second connecting plate B42 and the bottom plate of the second groove 11' are connected by bolts; a rotating plate B46 is provided at the bottom end of the second connecting plate B42; the rotating hole B45 is provided on the rotating plate B46;

[0078] To ensure a tighter fit when straightened, a rotating hole B45 is provided on the rotating plate B46. The rotating shaft 304 is simultaneously installed in the rotating holes A35 and B45 of the adjacent first ramp body 1 and second ramp body 1'. The adjacent rotating structures A3 and B4 are rotatably connected and rotated through the rotating shaft 304, thereby realizing the folding and unfolding of the adjacent first ramp body 1 and second ramp body 1'.

[0079] The adjacent first ramp body 1 and second ramp body 1' are folded downwards by rotating structures A3 and B4 set at the bottom.

[0080] In a specific embodiment of this utility model, see Figures 1-9 In order to accommodate bicycle installation on bicycle racks of different heights, a universal bracket 2 is installed at the bottom of the ramp body. The universal bracket 2 is configured to rotate relative to the ramp body under its own weight, so that the bottom edge of the universal bracket 2 is always parallel to the ground when the ramp body is at any tilt angle, and the bottom edge of the universal bracket 2 is always in contact with the ground when in use.

[0081] The structure of the universal support 2 is as follows:

[0082] Includes a first support plate 21, a second support plate 22, and a pull plate 23;

[0083] The first support plate 21 and the second support plate 22 have the same structure. The first support plate 21 and the second support plate 22 are symmetrically installed on both sides of the bottom end of the first ramp body 1. Specifically, the first support plate is installed on the outer side of the first support cavity 12; the second support plate 22 is installed on the outer side of the second support cavity 13; the first support plate 21 and the second support plate 22 simultaneously provide support for the ramp body.

[0084] The first support plate 21 and the second support plate 22 provide support for the first ramp body 1; the first support plate 21 and the second support plate 22 with the same structure are set on both sides of the first ramp body 1 to ensure that the first ramp body 1 is subjected to uniform force and improve the stability during the loading of bicycles.

[0085] The first support plate 21 and the second support plate 22 are rotatably connected to the first ramp body 1. No matter how the first ramp body 1 and the second ramp body 1' are tilted, the bottom surfaces of the first support plate 21 and the second support plate 22 are always in contact with the ground, so that the auxiliary ramp can be used for bicycle racks of different heights and always maintain strong support for the ramp body.

[0086] The two ends of the pull plate 23 are respectively connected to the inner sidewalls of the first support plate 21 and the second support plate 22. The pull plate 23 is generally welded to the first support plate 21 and the second support plate 22, or the first support plate 21, the second support plate 22 and the pull plate 23 are integrally formed. The first support plate 21 and the second support plate 22 are connected into a whole by the pull plate 23, so that the first support plate 21 and the second support plate 22 can move synchronously, ensuring that the first support plate 21 and the second support plate 22 can provide stable support for the first ramp body 1.

[0087] In a specific embodiment of this utility model, see Figures 1-9 In order to improve the stability of the first support plate 21 and the second support plate 22, anti-slip serrations 24 are provided at the bottom of both the first support plate 21 and the second support plate 22.

[0088] After the anti-slip serrations 24 are installed, the first support plate 21 and the second support plate 22 can firmly grip the ground after bearing the weight, ensuring the stability of the first ramp body 1 during use.

[0089] The bottom of the anti-slip serration 24 does not need to be sharp; it can be set to an arc shape, a straight line shape, or other shapes.

[0090] In a specific embodiment of this utility model, see Figures 1-9 Both the first support plate 21 and the second support plate 22 are triangular support plates. Triangles have stability, which ensures the stability of the support provided by the first support plate 21 and the second support plate 22 for the first ramp body 1.

[0091] In a specific embodiment of this utility model, see Figures 1-9 The top surfaces of the first support cavity 12, the second support cavity 13, the third support cavity 12' and the fourth support cavity 13' are all arc-shaped, which are adapted to the curvature of the bicycle tire, making the bicycle tire move more smoothly.

[0092] In a specific embodiment of this utility model, see Figures 1-9 Since the first ramp body 1 and the second ramp body 1' are made of profiles and have cavities inside, with open ends after cutting, a rotating structure A3 is installed at the top of the first ramp body 1, and an optional structure B4 is installed at the bottom of the second ramp body 1' and a rotating structure C5 is installed at the top. Therefore, only the bottom of the first ramp body 1 is open. In order to ensure the aesthetics of the first ramp body 1 and prevent dirt from entering the profile, a plug 8 is installed at the bottom of the first ramp body 1 to seal the end of the first ramp body 1.

[0093] The plug 8 includes a sealing plate 81, a third docking cavity 82, a fourth docking cavity 83, a fifth docking cavity 84, a first barb 85, and a second barb 86. The third docking cavity 82, the fourth docking cavity 83, and the fifth docking cavity 84 are all disposed on the sealing surface of the sealing plate 81. The third docking cavity 82 and the fourth docking cavity 83 are symmetrically arranged relative to the fifth docking cavity 84. The third docking cavity 82 is inserted into the first supporting cavity 12, and the fourth docking cavity 83 is inserted into the second supporting cavity 13. The fifth docking cavity 84 is inserted into the first groove 11; the fifth docking cavity 84 and the first groove 11 are connected by bolts; the first barb 85 is disposed in the third docking cavity 82, and the bottom of the first support cavity 12 is provided with a first locking hole 121, the first barb 85 cooperates with the first locking hole 121; the second barb 86 is disposed in the fourth docking cavity 83, and the bottom of the second support cavity 13 is provided with a second locking hole 131, the second barb 86 cooperates with the second locking hole 131;

[0094] The sealing plate 81 has edging around its perimeter, which covers the outer perimeter of the profile of the ramp body to seal the profile;

[0095] The third docking cavity 82 and the fourth docking cavity 83 are respectively inserted into the first support cavity 12 and the second support cavity 13, which can provide support for the first ramp body 1 and prevent the profile from being flattened.

[0096] The fifth docking cavity 84 mates with the first groove 11 and is connected by bolts, ensuring the stability of the connection between the plug 8 and the first ramp body 1, and effectively ensuring the stability and safety of the ramp during use.

[0097] In a specific embodiment of this utility model, see Figures 1-9 Reinforcing ribs 87 are provided at the connection between the first barb 85 and the sealing plate 81, and at the connection between the second barb 86 and the sealing plate 81, to improve the strength of the first barb 85 and the second barb 86 and ensure the stability of the connection.

[0098] In a specific embodiment of this utility model, see Figures 1-9 When using the auxiliary ramp of this utility model to transport a bicycle, first flip the overlapping platform so that the support block leaves the groove, then open the two folded ramp bodies, and then overlap the top overlapping platform on the bicycle frame. At the same time, within the length range of the ramp body, install the universal bracket at the bottom of the ramp body in a suitable position to make the ramp body as flat as possible, which helps to install the bicycle more easily. The universal bracket provides support for the ramp body.

[0099] After use, remove the entire auxiliary ramp, fold the two adjacent ramp bodies downwards until they are folded together, and then flip the overlapping platform upwards so that the support block at the bottom of the overlapping platform is engaged in the groove of the ramp body; the folded auxiliary ramp takes up little space and is more convenient to store.

[0100] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary ramp for a bicycle rack, comprising: The main body of the ramp rests on the ground at its bottom and is connected to the bicycle rack at its top. Its characteristic feature is that a docking platform is provided at the top of the main body of the ramp; The docking platform includes a hinge plate, a hinge cylinder, a bridging plate, a support block, and a limiting plate; The hinge plate is integrally formed on one bottom end of the bridge plate; The hinge cylinder is installed at the bottom end of the hinge plate; The hinged cylinder is rotatably mounted on the top of the ramp body; The vehicle-mounted bicycle frame is equipped with a tire bracket, and the bridge plate has the same shape as the top surface of the tire bracket, with the bridge plate overlapping the tire bracket; The support block is disposed at the bottom of the bridge plate, the tire bracket is provided with a limiting groove, the outer end of the tire bracket is provided with a blocking block, the support block is supported in the limiting groove, and the support block is engaged with the inner side of the blocking block. The limiting plate is disposed at the front end of the bridging plate, and the limiting plate is snapped into the limiting groove.

2. The auxiliary ramp for a bicycle rack as described in claim 1, characterized in that: The docking platform is installed on the top of the ramp body via a rotating structure C; The rotating structure C includes a rotating hole C; The hinged cylinder is rotatably connected to the rotating hole C.

3. The auxiliary ramp for a bicycle rack as described in claim 1, characterized in that: A universal support is installed at the bottom of the main body of the ramp, and the bottom edge of the universal support is always in contact with the ground. The universal bracket includes a first support plate, a second support plate, and a pull plate; The first support plate and the second support plate have the same structure, and the first support plate and the second support plate are symmetrically installed on both sides of the bottom end of the ramp body; Both the first support plate and the second support plate are rotatably connected to the ramp body; The two ends of the pull plate are respectively connected to the inner sidewalls of the first support plate and the second support plate.

4. The auxiliary ramp for a bicycle rack as described in claim 3, characterized in that: Both the bottom of the first support plate and the second support plate are provided with anti-slip serrations.

5. The auxiliary ramp for a bicycle rack as described in claim 3, characterized in that: Both the first support plate and the second support plate are triangular support plates.

6. The auxiliary ramp for a bicycle rack as described in claim 3, characterized in that: The ramp body is made of profile material; The ramp body includes a groove and a first support cavity and a second support cavity symmetrically arranged on both sides of the groove; The first support cavity and the second support cavity are integrally formed on both sides of the groove portion; The first support plate is installed on the outer side of the first support cavity; The second support plate is installed on the outer side of the second support cavity; The top surfaces of the first support cavity and the second support cavity form a bicycle ramp.

7. The auxiliary ramp for a bicycle rack as described in claim 6, characterized in that: The top surfaces of both the first and second support cavities are arc-shaped.

8. The auxiliary ramp for a bicycle rack as described in claim 6, characterized in that: The ramp body is provided in two parts, and the two ramp bodies are rotatably connected by a rotating structure; The two ramp bodies are respectively equipped with rotating structure A and rotating structure B at their connecting ends, and rotating structure A and rotating structure B are rotatably connected; rotating structure A, rotating structure B and rotating structure C have the same structure; The rotating structure A includes a docking plate A, a first connecting plate A, a second connecting plate A, a first docking cavity A, a second docking cavity A, a rotating hole A, and a rotating shaft A. The first connecting plate A, the second connecting plate A, the first docking cavity A, and the second docking cavity A are all mounted on the docking plate A, with the first connecting plate A and the second connecting plate A positioned vertically. The first docking cavity A is simultaneously connected to the left ends of both the first and second connecting plates A. The second docking cavity A is simultaneously connected to the right ends of both the first and second connecting plates A. The first docking cavity A is inserted into the first supporting cavity and connected to it by bolts, and the second docking cavity A is inserted into the second supporting cavity and connected to it by bolts. The first connecting plate A and the second connecting plate A are respectively clamped to the upper and lower sides of the bottom plate of the groove portion. The first connecting plate A, the second connecting plate A, and the bottom plate of the groove portion are connected by bolts. A rotating plate is provided at the bottom end of the second connecting plate A, and the rotating hole A is provided on the rotating plate. The rotating shaft A is installed in the rotating hole A on the adjacent ramp body at the same time; The support block is supported within the groove when the two ramp bodies are folded.

9. An auxiliary ramp for a bicycle rack as described in claim 6, characterized in that: A plug is installed at the bottom of the main body of the ramp; The plug includes a sealing plate, a third docking cavity, a fourth docking cavity, a fifth docking cavity, a first barb, and a second barb; The third, fourth, and fifth docking cavities are all disposed on the sealing surface of the sealing plate. The third and fourth docking cavities are symmetrically arranged with respect to the fifth docking cavity. The third docking cavity is inserted into the first support cavity, the fourth docking cavity is inserted into the second support cavity, and the fifth docking cavity is engaged with the groove portion. The fifth docking cavity is connected to the groove portion by bolts; The first barb is disposed in the third docking cavity, and the bottom of the first supporting cavity is provided with a first locking hole, and the first barb cooperates with the first locking hole; The second barb is disposed in the fourth docking cavity, and the bottom of the second support cavity is provided with a second locking hole, and the second barb cooperates with the second locking hole.

10. An auxiliary ramp for a vehicle-mounted bicycle rack as described in claim 9, characterized in that: Reinforcing ribs are provided at the connection between the first barb and the sealing plate, and at the connection between the second barb and the sealing plate.

Images