Telescopic vertical pipe structure of bicycle

Abstract

The utility model provides a telescopic vertical pipe structure of a bicycle, which is convenient for a user to adjust the vertical distance of a faucet up and down, and comprises a connecting pipe group, a vertical pipe group and a vertical pipe group, the connecting pipe group comprises a shifting handle, a positioning pull rod, an inner pipe and a fixing component, and the shifting handle is pivoted at one end of the positioning pull rod; the connecting pipe group comprises an inner pipe and an outer pipe group, the outer pipe group comprises an outer pipe and a vertical pipe, the outer pipe and the vertical pipe are connected with each other, and the inner pipe of the connecting pipe group extends into the outer pipe and the vertical pipe in a penetrating manner; the fixing assembly abuts against or is loosened from the interior of the vertical pipe, so that the inner pipe stretches and retracts back and forth in the outer pipe and the interior of the vertical pipe to control the length.

Description

Technical Field

[0001] This utility model relates to the technical field of bicycles, and more particularly to a bicycle telescopic vertical tube structure that allows for quick up-and-down adjustment of the vertical tube position. Background Technology

[0002] A bicycle's handlebars are connected to a fork tube via a vertical tube. To accommodate riders of different heights and their requirements for different riding postures and comfort, the height of the handlebars is usually adjusted to change the relative distance and angle between the handlebars and the saddle, thus achieving an ergonomic posture.

[0003] The conventional bicycle adjustment methods include using washers of different lengths placed between the stem and the handlebars, or using an adjustable handlebar structure. Some designs include quick-release screws and bolts for locking. With the help of tools, the user can adjust the distance of the stem. However, the adjustment of the conventional bicycle requires the use of tools, and if the locking is not secure enough, it can cause rotation between the handlebars and the stem. Therefore, improvements are needed. Utility Model Content

[0004] Therefore, the main objective of this utility model is to provide a bicycle telescopic stem structure for quickly adjusting the handlebars and stem; the secondary objective of this utility model is to provide a bicycle telescopic stem structure that prevents the handlebars and stem from rotating relative to each other.

[0005] To achieve the above objectives, this utility model provides a bicycle telescopic upright tube structure, characterized in that it comprises:

[0006] A connecting pipe assembly includes a lever, a positioning rod, an inner tube, and a fixing component. The lever is pivotally connected to one end of the positioning rod, the positioning rod extends through the inner tube, and the other end of the positioning rod is connected to the fixing component, which is engaged with one end of the inner tube.

[0007] An outer tube assembly includes an outer tube and a vertical tube, which are connected to each other. The inner tube of the connecting tube assembly extends through the outer tube and the vertical tube, and the fixing component abuts against or loosens inside the vertical tube, so that the inner tube can extend and retract back and forth inside the outer tube and the vertical tube to control its length.

[0008] The bicycle telescopic vertical tube structure, wherein: the lever of the connecting tube assembly is provided with a tightening structure, and the tightening structure is provided with a tightening area and a loosening area, the tightening area or the loosening area is linked to the positioning rod to cause the positioning rod to move up and down.

[0009] The bicycle telescopic vertical tube structure includes: an anti-rotation structure on the outside of a sliding area of ​​the inner tube; the sliding area of ​​the inner tube corresponds to an anti-rotation area of ​​the outer tube, allowing the sliding area and the anti-rotation area to slide up and down; the sliding area of ​​the inner tube moves downward away from the anti-rotation area of ​​the outer tube, allowing it to rotate freely to adjust its angle.

[0010] The bicycle telescopic vertical tube structure, wherein: the fixing component further includes a limiting member, an elastic plate and a fixing member, the elastic plate and the limiting member respectively extend through the positioning rod, and the fixing member is fixed to one end of the positioning rod.

[0011] The bicycle telescopic vertical tube structure, wherein: the fixing component further includes a spring, and the fixing component is arranged from bottom to top as the limiting member - the elastic plate - the fixing member - the spring, one end of the spring is connected to the vertical tube, and the other end is connected to the positioning rod.

[0012] The bicycle telescopic vertical tube structure, wherein: the outer tube assembly further includes a connector, and the connector is used to fasten and fix to the vertical tube and the outer tube.

[0013] The bicycle telescopic vertical tube structure further includes a handlebar, which is connected to the top of the inner tube, and the lever is provided with a frame, which is fixedly engaged with an ear seat provided on the handlebar.

[0014] By employing the aforementioned technical means, this utility model can achieve the following effects:

[0015] 1. This utility model allows the fixing component to be loosened inside the vertical tube by flipping the lever upward by hand. The connecting pipe assembly and the faucet can be adjusted vertically within the outer tube assembly. After determining the range, simply flip the lever downward to lock the frame into the faucet, and the fixing component will be squeezed and deformed to fix it to the vertical tube. This allows the aforementioned adjustment to be made without any tools, making it very convenient to use.

[0016] 2. This utility model uses the same special shape, such as a triangle, square or trapezoid, for the sliding area of ​​the inner tube and the anti-rotation area of ​​the outer tube, and several grooves arranged alternately with it. Because the outer diameter and inner diameter of each other are locked together, the inner tube and the outer tube cannot rotate relative to each other, thus improving riding safety. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the bicycle telescopic vertical tube structure of this utility model.

[0018] Figure 2 This is an exploded perspective view of the bicycle telescopic vertical tube structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the lever of this utility model being pulled upwards.

[0020] Figure 4 This is a schematic diagram of the faucet and connecting pipe assembly of this utility model extending vertically through the outer pipe assembly.

[0021] Figure 5 This is a schematic diagram of the lever of this utility model being fixed downwards.

[0022] Figure 6 This utility model Figure 5 XX sectional view.

[0023] Figure 7 This is an exploded perspective view of another embodiment of the bicycle telescopic vertical tube structure of this utility model.

[0024] Figure 8 This is a schematic diagram of the spring separation limiting component and elastic sheet of this utility model.

[0025] Figure 9 This is a schematic diagram of another embodiment of the sliding area and anti-rotation area of ​​this utility model.

[0026] Explanation of reference numerals in the attached drawings: A - Telescopic vertical tube structure; B - Telescopic vertical tube structure; 1 - Connecting tube assembly; 11 - Handle; 12 - Tightening structure; 121 - Tightening zone; 122 - Loosening zone; 123 - Frame; 13 - Positioning rod; 14 - Inner tube; 141 - Sliding zone; 141a - Sliding zone; 15 - Fixing component; 151 - Limiting component; 152 - Elastic plate; 153 - Fixing component; 154 - Spring; 2 - Outer tube assembly; 21 - Vertical tube; 22 - Outer tube; 23 - Anti-rotation zone; 23a - Anti-rotation zone; 24 - Connecting component; 3 - Head; 31 - Ear seat; 4 - Head tube. Detailed Implementation

[0027] Please see Figure 1 and Figure 2 As shown, this utility model provides a bicycle telescopic vertical tube structure, which includes: a connecting tube assembly 1, an outer tube assembly 2, and a handlebar 3; the above components are described below with reference to the accompanying drawings.

[0028] For the above connecting pipe assembly 1, please refer to... Figure 1 and Figure 2As shown, the connecting tube assembly 1 includes a lever 11, a positioning pull rod 13, an inner tube 14, and a fixing component 15. The lever 11 is pivotally connected to one end of the positioning pull rod 13, and the positioning pull rod 13 extends through the inner tube 14. The lever 11 of the connecting tube assembly 1 is provided with a clamping structure 12, and the clamping structure 12 is provided with a clamping area 121 and a loosening area 122. The other end of the positioning pull rod 13 is connected to the fixing component 15. The fixing component 15 further includes a limiting member 151, an elastic plate 152, and a fixing member 153. The elastic plate 152 and the limiting member 151 respectively extend through the positioning pull rod 13, and the fixing member 153 is fixed to one end of the positioning pull rod 13.

[0029] Please refer to the above-mentioned external pipe group 2. Figure 1 and Figure 2 As shown, the outer tube assembly 2 includes an outer tube 22, a vertical tube 21, and a connector 24. The outer tube 22 and the vertical tube 21 are connected to each other, and the lower part of the vertical tube 21 is fitted into the end tube 4 of the bicycle. The inner tube 14 of the connecting tube assembly 1 extends through the outer tube 22 and the vertical tube 21, and the fixing component 15 abuts against or loosens inside the vertical tube 21, so that the inner tube 14 can extend and retract back and forth inside the outer tube 22 and the vertical tube 21 to control its length. The connector 24 is fixed between the vertical tube 21 and the outer tube 22.

[0030] For the above-mentioned faucet 3, please refer to Figure 1 and Figure 2 As shown, the faucet 3 is connected to the top of the inner tube 14, and the lever 11 is provided with a frame 123 that is fixed to an ear seat 31 provided on the faucet 3.

[0031] Therefore, this utility model provides a preferred solution for a bicycle telescopic vertical tube structure. Please refer to [link / reference]. Figures 2 to 4 As shown, when the user needs to adjust the vertical length relationship between the faucet 3, the connecting pipe assembly 1, and the outer pipe 22 of a telescopic vertical pipe structure A, the user rotates the lever 11 upward so that the loosening area 122 of the clamping structure 12 contacts the connecting pipe assembly 1, causing the positioning rod 13 to move downward, and the originally deformed elastic plate 152 to restore its shape and retract inward. At the same time, the limiting member 151 is released from the vertical pipe 21 and does not interfere with the vertical sliding of the connecting pipe assembly 1 between the outer pipe assembly 2.

[0032] For further information, please refer to [link / reference]. Figure 4 and Figure 5As shown, after the user slides to the desired height, the lever 11 is then pushed down, and the frame 123 just locks into the ear seat 31 of the faucet 3. At this time, the positioning lever 13 contacts the pressing area 121 of the clamping structure 12 and moves upward, forcing the elastic plate 152 to arch upward and stick tightly to the limiting member 151. The limiting member 151 is deformed by the force of the elastic plate 142 and sticks tightly to the inner wall of the vertical tube 21, causing interference and preventing it from moving up and down.

[0033] In particular, please refer to Figure 5 and Figure 6 As shown, the inner tube 14 has a sliding area 141 with an anti-rotation structure on its outer side (the outer shape of the sliding area is triangular, square, has several slots, is elliptical, or is a non-circular irregular shape). The sliding area 141 of the inner tube 14 is designed to correspond to an anti-rotation area 23 on the outer tube 22 of the outer tube assembly 2, allowing the sliding area 141 and the anti-rotation area 23 to slide up and down. The sliding area 141 of the inner tube 14 can also detach upwards from the anti-rotation area 23 of the outer tube 22, allowing for free rotation and angle adjustment. Additionally, please refer to... Figure 9 The inner tube 14 is further provided with a sliding area 141a and a corresponding anti-rotation area 23a of the outer tube 22, and both are elliptical in shape, so as to achieve the same purpose of avoiding rotation.

[0034] Another embodiment of the bicycle telescopic vertical tube structure of this utility model can be found elsewhere. Figure 7 and Figure 8 As shown, the fixing component 15 of one of the telescopic vertical tube structures B includes a spring 154. The fixing component 15 is arranged from bottom to top as the limiting member 151, the elastic plate 152, the fixing member 153, and the spring 154. One end of the spring 154 is connected to the vertical tube 21, and the other end is connected to the positioning pull rod 13. When the user pulls the lever 11, the spring 154 generates an elastic force to quickly separate the elastic plate 152 and the limiting member 151 without the user having to shake the faucet 3 left and right to loosen it. This allows the connecting tube assembly 1 to be quickly disengaged from the outer tube assembly 2 for rapid displacement and height adjustment.

[0035] It should be noted that the above description is the technical principle used in the specific embodiments of this utility model. If any changes are made in accordance with the concept of this utility model, and the resulting functions and effects do not exceed the spirit covered by the specification and drawings of this utility model, they should be included within the protection scope of this utility model.

Claims

1. A telescopic upright tube structure for bicycles, characterized in that, Includes: A connecting pipe assembly includes a lever, a positioning rod, an inner tube, and a fixing component. The lever is pivotally connected to one end of the positioning rod, the positioning rod extends through the inner tube, and the other end of the positioning rod is connected to the fixing component, which is engaged with one end of the inner tube. An outer tube assembly includes an outer tube and a vertical tube, which are connected to each other. The inner tube of the connecting tube assembly extends through the outer tube and the vertical tube, and the fixing component abuts against or loosens inside the vertical tube, so that the inner tube can extend and retract back and forth inside the outer tube and the vertical tube to control its length.

2. The bicycle telescopic vertical tube structure as described in claim 1, characterized in that: The lever of the connecting tube assembly is provided with a tightening structure, and the tightening structure is provided with a tight area and a loose area. The tight area or the loose area is linked to the positioning rod to cause the positioning rod to move up and down.

3. The bicycle telescopic vertical tube structure as described in claim 1, characterized in that: An anti-rotation structure is provided on the outer side of a sliding area of ​​the inner tube. The sliding area of ​​the inner tube corresponds to an anti-rotation area of ​​the outer tube, allowing the sliding area and the anti-rotation area to slide up and down. The sliding area of ​​the inner tube moves downward away from the anti-rotation area of ​​the outer tube, allowing it to rotate freely to adjust its angle.

4. The bicycle telescopic vertical tube structure as described in claim 3, characterized in that: The fixing component also includes a limiting member, an elastic plate, and a fixing member. The elastic plate and the limiting member respectively extend through the positioning rod, and the fixing member is fixed to one end of the positioning rod.

5. The bicycle telescopic vertical tube structure as described in claim 4, characterized in that: The fixing component also includes a spring. The fixing components are arranged from bottom to top as follows: the limiting member - the elastic plate - the fixing member - the spring. One end of the spring is connected to the vertical tube and the other end is connected to the positioning rod.

6. The bicycle telescopic vertical tube structure as described in claim 1, characterized in that: The outer tube assembly also includes a connector for fastening and fixing to the vertical tube and the outer tube.

7. The bicycle telescopic vertical tube structure as described in claim 1, characterized in that: It also includes a faucet, which is attached to the top of the inner tube, and the lever is provided with a frame, which is fixedly engaged with an ear seat provided on the faucet.

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