Bicycle with adjustable size

Abstract

The utility model discloses a size-adjustable bicycle which comprises a bicycle frame, a front wheel and a rear wheel, a handlebar and a cushion are installed on the bicycle frame, the two sides of the bottom of the bicycle frame are installed on the front wheel and the rear wheel, and an adjusting structure is arranged in the middle of the bicycle frame. The length of the bicycle frame can be effectively adjusted, and riding is more convenient.

Description

Technical Field

[0001] This utility relates to cycling equipment, specifically an adjustable-size bicycle. Background Technology

[0002] Bicycles are a common mode of transportation in daily life. They are popular among young people because of their small size and ease of parking. Most existing bicycles have a fixed shape, meaning that the size of the bicycle cannot be adjusted when in use. This makes it difficult to adjust the bicycle for people of different heights. Existing adjustable bicycles usually adjust the height of the handlebars or the seat, but do not adjust the length of the bicycle itself, making them inconvenient to use. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a bicycle whose size can be adjusted according to riding needs.

[0004] To solve the aforementioned existing technical problems, this utility model adopts the following solution: an adjustable-size bicycle, including a frame, a front wheel, and a rear wheel. A handlebar and a seat are mounted on the frame. The front and rear wheels are mounted on both sides of the bottom of the frame. An adjustment structure is provided in the middle of the frame. The adjustment structure consists of a connector and a fixing sleeve. The connector is installed in the front part of the frame, and the fixing sleeve is installed in the rear part of the frame. The connector end has a U-shaped design, and the bottom of the connector has several insertion holes. The end of the fixing sleeve has a fixing groove for matching the connector. The bottom of the fixing sleeve has several connecting holes, the diameter of which is slightly larger than that of the insertion holes. The number of insertion holes is greater than the number of connecting holes. The connector moves and adjusts along the inner cavity of the fixing sleeve.

[0005] Preferably, when the connector moves along the inner cavity of the fixed sleeve, it is connected and fixed to the plug hole by bolts passing through the connecting hole.

[0006] This utility model provides an adjustable-size bicycle using the above-described technical solution, which has the following advantages compared with existing technologies:

[0007] 1. Fit the connector into the fixing sleeve. Adjust the position of the connector in the fixing sleeve according to the actual needs to facilitate the adjustment of the overall size of the bicycle.

[0008] 2. The connector has a socket hole at the bottom, which corresponds to the connection hole. After the bolt or other connector passes through the connection hole, it is connected to the socket hole to fix the connector to the fixing sleeve. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a partial schematic diagram of the front part of the frame of this utility model.

[0011] Figure 3 This is a partial schematic diagram of the rear-mounted portion of the frame of this utility model.

[0012] In the diagram, the components are: frame 1, front wheel 2, rear wheel 3, handlebars 4, seat 5, adjustment mechanism 6, connector 7, fixing sleeve 8, connector hole 9, fixing groove 10, and connection hole 11. Detailed Implementation

[0013] like Figures 1 to 3 As shown, an adjustable-size bicycle includes a frame 1, a front wheel 2, and a rear wheel 3. The frame 1 is fitted with handlebars 4 and a seat 5. The front wheel 2 and rear wheel 3 are mounted on the bottom sides of the frame 1. An adjustment structure 6 is located in the middle of the frame 1. The adjustment structure 6 consists of a connector 7 and a fixing sleeve 8. The connector 7 is installed in the front part of the frame 1, and the fixing sleeve 8 is installed in the rear part of the frame 1. The connector 7 has a U-shaped end and several insertion holes 9 at its bottom. The fixing sleeve 8 has a fixing groove 10 at its end that matches the connector 7. The fixing sleeve 8 has several connecting holes 11 at its bottom, with the diameter of the connecting holes 11 slightly larger than the diameter of the insertion holes 9. The number of insertion holes 9 is greater than the number of connecting holes 11. The connector 7 can be adjusted and moved along the inner cavity of the fixing sleeve 8.

[0014] In actual operation, the connector 7 is fitted inside the fixing sleeve 8 to facilitate the installation of the entire frame 1. After installation, it can be ridden. Several insertion holes 9 are provided at the bottom of the connector 7. When the connector 7 is installed inside the fixing sleeve 10, the insertion holes 9 are aligned with the connecting holes 11. Then, fasteners such as bolts are passed through the connecting holes 11 and connected to the insertion holes 9. Since there are multiple insertion holes 9 and multiple connecting holes 11, the position of the insertion holes 9 on the connecting holes 11 can be adjusted according to actual needs, which facilitates the adjustment of the length of the entire frame 1, effectively improves the riding experience, and makes it more convenient to use.

[0015] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A size-adjustable bicycle comprising a frame (1), a front wheel (2) and a rear wheel (3), characterized in that: The frame (1) is provided with handlebars (4) and a seat cushion (5), the bottom of the frame (1) is provided with front wheels (2) and rear wheels (3), the middle of the frame (1) is provided with an adjusting structure (6), the adjusting structure (6) is composed of a connector (7) and a fixing sleeve (8), the connector (7) is arranged on the front part of the frame (1), the fixing sleeve (8) is arranged on the rear part of the frame (1), the end of the connector (7) is designed in a U shape, the bottom of the connector (7) is provided with a plurality of connector holes (9), the end of the fixing sleeve (8) is provided with a fixing groove (10) matched with the connector (7), the bottom of the fixing sleeve (8) is provided with a plurality of connecting holes (11), the diameter of the connecting holes (11) is slightly larger than that of the connector holes (9), the number of the connector holes (9) is greater than that of the connecting holes (11), and the connector (7) is adjusted and moved along the inner cavity of the fixing sleeve (8).

2. The size adjustable bicycle of claim 1, wherein: When the connector (7) is adjusted and moved along the inner cavity of the fixing sleeve (8), the bolt is connected and fixed through the connecting holes (11) and the connector holes (9).

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