Assembling structure of a tandem bicycle and tandem bicycle

Abstract

The utility model relates to a bicycle technical field, concretely relates to a kind of assembling structure and tandem bicycle of tandem bicycle, the assembling structure includes rear frame, handlebar is rotationally arranged in the front end of rear frame along horizontal direction and is rolled and arranged in the rear wheel of rear frame rear end, the lower end of handlebar is connected with front fork, the lower end of front fork is provided with the first fixed mechanism for being assembled with the rear wheel axle of the bicycle of outside.The utility model aims at providing a kind of assembling structure and tandem bicycle of tandem bicycle, by adopting detachable front fork and rear wheel fixed mechanism, the quick assembling and disassembly of bicycle are realized, greatly facilitate the carrying and storage of user, satisfy different cycling needs.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, specifically to an assembly structure for a tandem bicycle and a tandem bicycle. Background Technology

[0002] Tandem bicycles, as a special mode of transportation, have become increasingly popular among cycling enthusiasts in recent years. Their main feature is that they can accommodate two riders simultaneously, making them suitable for family outings, couples' rides, and other similar scenarios. However, existing tandem bicycles have some shortcomings in terms of assembly and disassembly.

[0003] However, dedicated tandem bicycles usually require specialized design and manufacturing, resulting in relatively high purchase costs. At the same time, due to their special structure, tandem bicycles are inconvenient to store and transport, and are not flexible enough in certain usage scenarios, causing inconvenience. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide an assembly structure for a tandem bicycle and a tandem bicycle. By adopting a detachable front fork and rear wheel fixing mechanism, the bicycle can be quickly assembled and disassembled, which greatly facilitates the user's carrying and storage and meets different riding needs.

[0005] This utility model is achieved through the following technical solution:

[0006] In a first aspect, this utility model discloses an assembly structure for a tandem bicycle, which includes a rear frame, a handlebar rotatably disposed at the front end of the rear frame in a horizontal direction, and a rear wheel rotatably disposed at the rear end of the rear frame. The lower end of the handlebar is connected to a front fork, and the lower end of the front fork is provided with a first fixing mechanism for assembling with the rear wheel axle of an external bicycle.

[0007] The rear frame has a connecting post that is rotatably mounted at the front end in the vertical direction, and a second fixing mechanism for assembling with an external bicycle frame is provided at the end of the connecting post away from the rear frame.

[0008] The connecting column is a telescopic structure.

[0009] The first fixing mechanism includes a slot for fitting an external bicycle rear wheel axle and a locking device for fixing the external bicycle rear wheel axle in the slot.

[0010] The connection between the handlebar and the fork uses an adjustable-angle connector.

[0011] The rear frame is a one-piece tubular structure, with a rear seat at the upper part of the middle section of the rear frame and a rear footrest at the lower part of the middle section of the rear frame.

[0012] Secondly, this utility model discloses a tandem bicycle, including a front frame and an assembly structure as described above, wherein the front fork of the assembly structure is assembled with the rear wheel axle of the front frame through a first fixing mechanism.

[0013] The beneficial effects of this utility model are:

[0014] This utility model discloses an assembly structure and a tandem bicycle. By adopting a detachable front fork and rear wheel fixing mechanism, the bicycle can be quickly assembled and disassembled, greatly facilitating users' carrying and storage. In addition, users can assemble different numbers of assembly structures with the front frame according to different rider numbers to meet different riding needs. Attached Figure Description

[0015] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the assembly structure of this utility model.

[0017] Figure Labels

[0018] Rear frame--100, Handlebar--101, Rear wheel--102, Front fork--103, Card slot--104, Connecting column--105, Rear seat--106, Rear footpeg--107. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] like Figure 1 As shown, this embodiment discloses an assembly structure for a tandem bicycle, which includes a rear frame 100, a handlebar 101 rotatably disposed at the front end of the rear frame 100 in a horizontal direction, and a rear wheel 102 rotatably disposed at the rear end of the rear frame 100. The lower end of the handlebar 101 is connected to a front fork 103, and the lower end of the front fork 103 is provided with a first fixing mechanism for assembling with the axle of the rear wheel 102 of an external bicycle.

[0023] In addition, this embodiment also discloses a tandem bicycle, including a front frame and the assembly structure described above. The front fork 103 of the assembly structure is assembled with the rear wheel 102 axle of the front frame through a first fixing mechanism.

[0024] It should be noted that the front body in this embodiment is a common human-powered bicycle, but it can also be an electric bicycle.

[0025] Specifically, the present invention relates to a tandem bicycle assembly structure and a tandem bicycle, which, by adopting a detachable front fork 103 and rear wheel 102 fixing mechanism, enables the bicycle to be quickly assembled and disassembled, greatly facilitating users' carrying and storage; in addition, users can assemble different numbers of assembly structures with the front frame according to different rider numbers to meet different riding needs.

[0026] Furthermore, a connecting post 105 is rotatably mounted on the front end of the rear frame 100 in the vertical direction. The end of the connecting post 105 away from the rear frame 100 is provided with a second fixing mechanism for assembly with an external bicycle frame. After the assembly structure is assembled with the front body, a secondary connection to the front body is achieved through the connecting post 105, improving assembly stability. In this embodiment, the connecting post 105 is preferably a telescopic structure to adapt to front bodies of different sizes and shapes, and the second fixing mechanism is preferably a structure of a buckle and a slot 104.

[0027] Furthermore, the first fixing mechanism includes a slot 104 for fitting the rear wheel axle of the external bicycle 102 and a locking device for fixing the rear wheel axle of the external bicycle 102 within the slot 104. In this embodiment, the locking device is preferably a nut. After the slot 104 is fixed to the rear wheel axle of the front frame, the slot 104 is locked onto the rear wheel axle by tightening the nut.

[0028] Furthermore, the connection between the handlebar 101 and the fork 103 uses an adjustable-angle connector, which can improve the riding angle and enhance comfort.

[0029] Furthermore, the rear frame 100 is an integrally formed tubular structure, with a rear seat 106 provided at the upper part of the middle section of the rear frame 100 and a rear pedal 107 provided at the lower part of the middle section of the rear frame 100, achieving the same user experience as a regular bicycle.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A knockdown structure of a tandem bicycle, characterized by comprising: The bicycle includes a rear frame, a handlebar that is rotatably mounted at the front end of the rear frame in a horizontal direction, and a rear wheel that is rotatably mounted at the rear end of the rear frame. The lower end of the handlebar is connected to a front fork, and the lower end of the front fork is provided with a first fixing mechanism for assembling with the rear wheel axle of an external bicycle.

2. The assembling structure of a double bicycle according to claim 1, wherein The front end of the rear frame is rotatably provided with a connecting post in the vertical direction, and the end of the connecting post away from the rear frame is provided with a second fixing mechanism for assembling with the frame of an external bicycle.

3. The assembling structure of a double bicycle according to claim 2, wherein The connecting column is a telescopic structure.

4. The assembling structure of a double bicycle according to claim 1, wherein The first fixing mechanism includes a slot for fitting an external bicycle rear wheel axle and a locking device for fixing the external bicycle rear wheel axle in the slot.

5. The assembly structure of a tandem bicycle according to claim 1, characterized in that, The connection between the handlebar and the fork uses an adjustable-angle connector.

6. The assembly structure of a tandem bicycle according to claim 1, characterized in that, The rear frame is a one-piece tubular structure, with a rear seat at the upper part of the middle section of the rear frame and a rear footrest at the lower part of the middle section of the rear frame.

7. A tandem bicycle, comprising a front frame, characterized in that, It also includes the assembly structure as described in any one of claims 1-6, wherein the front fork of the assembly structure is assembled with the rear wheel axle of the front vehicle body via a first fixing mechanism.

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