Vertical pipe, bicycle frame and triple-folding bicycle

Abstract

The utility model relates to a vertical pipe, a frame and a triple-folding bicycle, the vertical pipe is used for connecting a handlebar and a front fork of the bicycle, the vertical pipe comprises a first pipe and a second pipe, and one end of the first pipe is used for being connected to the handlebar; the second pipe comprises a first section and a second section which are connected, the end, away from the second section, of the first section is connected to the end, away from the handlebar, of the first pipe, and the end, away from the first section, of the second section is connected to a front fork. The first section is bent towards the side deviating from a saddle of the bicycle relative to the second section, the included angle between the first section and the second section is an obtuse angle, and the first section and the first pipe extend in the same direction. When the vertical pipe is used for connecting the front fork and the handlebar of the bicycle, the mounting angle of the vertical pipe is adjusted, so that the first section extends towards the side deviating from the saddle of the bicycle, the distance between the vertical pipe and the saddle is increased, the distance between the saddle and the handlebar is increased, and the geometric dimension of the bicycle better conforms to ergonomics; and the riding experience feeling, the comfort degree and the riding efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of bicycle technology, and in particular to a stem tube, frame and folding bicycle. Background Technology

[0002] A bicycle, also known as a pedal bike or cyclist, is typically a small, two-wheeled land vehicle. Riders power it by pedaling, making it a green and environmentally friendly mode of transportation. In related technologies, a bicycle includes a frame, front fork, front wheel, rear fork, rear wheel, handlebars, and seat. The frame is connected to the front wheel via the front fork and to the rear wheel via the rear fork. The seat is mounted on the frame. The frame includes a stem tube, which connects the handlebars and front fork.

[0003] The distance between the saddle and handlebars is commonly referred to as the saddle-to-handlebar distance. It is one of the important parameters affecting riding posture and comfort. A suitable saddle-to-handlebar distance allows the rider to maintain a comfortable posture while riding, reducing fatigue in various parts of the body, and also helps improve riding efficiency and handling.

[0004] However, the existing riser is a straight tube, and the distance between the riser and the seat is limited, which restricts the seat-handlebar distance and affects the riding experience. Utility Model Content

[0005] Therefore, it is necessary to provide a stem tube, frame, and three-fold bicycle to address the problem of limited seat-handlebar distance in existing bicycles.

[0006] A vertical tube for connecting a bicycle handlebar and fork, the vertical tube comprising:

[0007] The first tube has one end for connecting to the handlebars;

[0008] The second tube includes a first section and a second section connected together. The end of the first section opposite to the second section is connected to the end of the first tube opposite to the handlebar. The end of the second section opposite to the first section is used to connect to the front fork.

[0009] The first segment bends away from the bicycle seat relative to the second segment, and the angle between the first segment and the second segment is an obtuse angle. The first segment and the first tube extend in the same direction.

[0010] In one embodiment, the end of the second segment connected to the first segment is defined as the first end, and the end away from the first segment is defined as the second end, wherein the size of the first end is smaller than the size of the second end.

[0011] In one embodiment, the vertical tube further includes a locking member, one end of the first tube extending into the first segment and adjustable relative to the first segment, the locking member being capable of locking the first tube and the first segment.

[0012] In one embodiment, the vertical pipe further includes a bushing, which is fitted onto the first pipe and sandwiched between the inner wall of the first segment and the outer wall of the first pipe.

[0013] In one embodiment, the length of the first tube is configured to be adjustable.

[0014] In one embodiment, the first segment and the second segment are integrally formed.

[0015] This application also provides a frame including the riser tube described in any of the above claims.

[0016] This application also provides a three-fold bicycle, including the frame, handlebars, fork and seat described above, wherein the first tube is connected to the handlebars, the second section is connected to the fork, and the first section is bent relative to the second section toward the side away from the seat.

[0017] In one embodiment, the second segment extends in a vertical direction.

[0018] In one embodiment, the tri-fold bicycle also includes a headset, through which the second section is connected to the fork.

[0019] The aforementioned vertical tube connects one end of the first tube to the handlebars and the other end to the first section of the second tube. The second section of the second tube, facing away from the first tube, is connected to the fork, thus connecting the handlebars and the fork via the vertical tube. The first section and the first tube extend in the same direction, while the first section of the second tube is bent relative to the second section, meaning the first and second sections are angled, and the angle between them is obtuse. When connecting the bicycle's fork and handlebars using the vertical tube, adjusting the installation angle of the vertical tube allows the first section to extend away from the bicycle seat, increasing the distance between the vertical tube and the seat, and consequently increasing the seat-to-handlebar distance. This makes the bicycle's geometry more ergonomic, improving the riding experience, comfort, and efficiency. Attached Figure Description

[0020] Figure 1 This is a first-view structural schematic diagram of the vertical pipe provided in an embodiment of this application.

[0021] Figure 2 This is a structural schematic diagram of the vertical tube provided in the embodiments of this application from a second perspective.

[0022] Figure 3This is a structural schematic diagram of the vertical pipe from a third-view perspective, provided in an embodiment of this application.

[0023] Figure label:

[0024] 100. First tube;

[0025] 200, Second pipe; 210, First section; 220, Second section;

[0026] 300. Locking components;

[0027] 400. Handlebars. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] This application provides a vertical tube for connecting the handlebars and front fork of a bicycle, such as... Figures 1 to 3 As shown, the vertical tube includes a first tube 100 and a second tube 200. One end of the first tube 100 is used to connect to the handlebar 400. The second tube 200 includes a first segment 210 and a second segment 220 connected to each other. The end of the first segment 210 away from the second segment 220 is connected to the end of the first tube 100 away from the handlebar 400. The end of the second segment 220 away from the first segment 210 is used to connect to the front fork. The first segment 210 bends relative to the second segment 220 towards the side away from the bicycle seat, and the included angle between the first segment 210 and the second segment 220 is an obtuse angle. The first segment 210 and the first tube 100 extend in the same direction.

[0035] The aforementioned vertical tube connects one end of the first tube 100 to the handlebars 400 and the other end to the first segment 210 of the second tube 200. The second segment 220 of the second tube 200, away from the first tube 100, is connected to the front fork, thus connecting the handlebars 400 and the front fork via the vertical tube. The first segment 210 and the first tube 100 extend in the same direction, while the first segment 210 of the second tube 200 is bent relative to the second segment 220, meaning the first and second segments are angled, and the angle between them is obtuse. When connecting the bicycle's front fork and handlebars 400 using the vertical tube, adjusting the installation angle of the vertical tube allows the first segment 210 to extend away from the bicycle seat, increasing the distance between the vertical tube and the seat, and consequently increasing the seat-to-handlebar distance. This makes the bicycle's geometry more ergonomic, improving the riding experience, comfort, and efficiency.

[0036] It should be noted that the angle between the first segment 210 and the second segment 220 is an obtuse angle, and the specific angle value is set according to the actual operation requirements. For example, the angle range between the first segment 210 and the second segment 220 can be 100°, 110°, 120°, 130°, 140°, 150°, 160°, and 170°.

[0037] In one embodiment, the first segment 210 and the second segment 220 are integrally formed. When processing the second tube 200, the first segment 210 and the second segment 220 are integrally formed, eliminating the need for a connection structure between the first segment 210 and the second segment 220, saving installation steps, and eliminating gaps and weak points in the segments in the traditional assembly method, making the overall structure of the second tube 200 more robust.

[0038] In other embodiments, the first segment 210 and the second segment 220 are connected by a connecting structure, for example, by a clamp connecting the first segment 210 and the second segment 220.

[0039] In one embodiment, the length of the first segment 210 and the length of the second segment 220 have a preset length ratio. Limiting the length ratio of the first segment 210 and the second segment 220 also limits the bending of the first segment 210 of the second tube 200 at a preset position.

[0040] In one specific embodiment, the preset length ratio of the first segment 210 and the second segment 220 is 2:1. In other embodiments, the preset length ratio may also be 3:1.

[0041] It is understandable that the preset length ratio of the first segment 210 and the second segment 220 is set according to the actual operation requirements.

[0042] Furthermore, such as Figures 1 to 3As shown, the end of the second segment 220 connected to the first segment 210 is defined as the first end, and the end away from the first segment 210 is defined as the second end. The size of the first end is smaller than the size of the second end. The first end of the second segment 220 is connected to the first segment 210, and the second end is connected to the front fork. The size of the second end is larger than the size of the first end. That is, when connecting the handlebars 400 and the front fork, the second segment 220 has a structure that is narrower at the top and wider at the bottom. Increasing the size of the second segment 220 increases its rigidity, thereby increasing the rigidity of the bicycle.

[0043] Specifically, such as Figures 1 to 3 As shown, the size of the first end is smaller than the size of the second end, that is, the cross-section of the second segment 220 along its own length is trapezoidal.

[0044] In one embodiment, the second end of the second segment 220 extends outward along two opposite sides in a first direction, forming a structure that is narrower at the top and wider at the bottom. The first direction is perpendicular to the length of the second segment 220. When the handlebar 400 and the front fork are connected by a vertical tube, the first direction can be the extension direction of the handlebar 400, i.e., the left-right direction of the bicycle, or the direction of movement of the bicycle, i.e., the front-back direction of the bicycle.

[0045] When the second end of the second segment 220 expands outward along the extension direction of the handlebar 400, the force on the bicycle in the left-right direction is strengthened. When the second end of the second segment 220 expands outward along the direction of the bicycle's movement, the force on the bicycle in the front-back direction is strengthened.

[0046] In one embodiment, the second end of the second segment 220 is expanded outward along the circumference (i.e., the size of the second end at each position along the circumference is increased), forming a structure that is narrow at the top and wide at the bottom, thereby strengthening the force on the second segment 220 in all directions.

[0047] In one embodiment, such as Figures 1 to 3 As shown, the vertical tube also includes a locking element 300. One end of the first tube 100 extends into the first section 210 and can move adjustablely relative to the first section 210. The locking element 300 can lock the first tube 100 and the first section 210. The end of the first tube 100 facing away from the handlebar 400 is inserted into the first section 210 of the second tube 200. By pulling the first tube 100 up and down, the size of the first tube 100 protruding from the first section 210 is adjusted, thereby adjusting the overall length of the vertical tube. When the desired length is reached, the locking element 300 is used to lock the first tube 100 and the first section 210, thus locking the first tube 100 and the second tube 200 and preventing the first tube 100 from shaking.

[0048] Specifically, the locking element 300 can be a clamp, or other structures that can lock the first tube 100 and the first section 210.

[0049] In one embodiment, the riser also includes a bushing, which is fitted onto the first pipe 100 and sandwiched between the inner wall of the first section 210 and the outer wall of the first pipe 100. By providing the bushing, the bushing is positioned between the outer wall of the first pipe 100 and the inner wall of the second section 220, isolating the first pipe 100 from direct contact with the second section 220. This prevents damage caused by friction or collision between the surfaces of the first pipe 100 and the second section 220 during connection and use. Furthermore, the bushing not only compensates for dimensional deviations between the first pipe 100 and the first section 210 but also increases the sealing performance between them.

[0050] In other embodiments, the length of the first tube 100 is configured to be adjustable. By adjusting the length of the first tube 100 itself, the overall length of the vertical tube is adjusted, which in turn adjusts the vertical distance between the handlebars 400 and the fork, thereby making the bicycle suitable for a wider range of people and for different riding habits.

[0051] For example, the first tube 100 can be a telescopic rod, and the overall length of the vertical tube can be adjusted by adjusting the length of the first tube 100 itself.

[0052] This application also provides a frame including the seat tube of any of the above-mentioned embodiments. By setting the seat tube, the seat-handlebar distance 400 is increased, making the bicycle geometry more ergonomic and improving the riding experience, comfort, and riding efficiency.

[0053] This application also provides a three-fold bicycle, including the aforementioned frame, handlebars 400, fork, and seat. A first tube 100 is connected to the handlebars 400, and a second section 220 is connected to the fork. The first section 210 is bent away from the seat relative to the second section 220. When assembling the three-fold bicycle, the frame, handlebars 400, fork, and seat are connected. During installation, attention is paid to adjusting the installation angle of the vertical tube so that the first section 210 extends away from the seat, thereby increasing the distance between the vertical tube and the seat, and thus increasing the seat-handlebar distance. This makes the bicycle's geometry more ergonomic, improving the riding experience, comfort, and riding efficiency.

[0054] In this embodiment, the extension direction of the second segment 220 is vertical. That is, the first segment 210 of the second tube 200 bends away from the seat from the connection point of the first segment 210 and the second segment 220, i.e., the first segment 210 bends forward (towards the front of the folding bicycle), thereby increasing the lateral distance between the first segment 210 and the seat, and thus increasing the seat-handlebar distance between the handlebars 400 and the seat. The angle between the first segment 210 and the second segment 220 is an obtuse angle, that is, the angle between the first segment 210 and the vertical direction is an acute angle, less than 90°.

[0055] In one embodiment, the tri-fold bicycle also includes a headset, with the second segment 220 connected to the fork via the headset. The headset connects the second end of the second segment 220 to the fork.

[0056] It should be noted that the headset includes the upper headset, lower headset, and bearings. The connections between the various structural components of the headset and the fork and the second stage, as well as the connections between the various structural components of the headset, are all conventional technologies in this field, and therefore will not be described in detail here.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vertical tube for connecting the handlebars and front fork of a bicycle, characterized in that, The vertical pipe includes: The first tube (100) has one end for connection to the handlebar (400); The second tube (200) includes a first section (210) and a second section (220) connected together. The end of the first section (210) opposite to the second section (220) is connected to the end of the first tube (100) opposite to the handlebar (400). The end of the second section (220) opposite to the first section (210) is used to connect to the front fork. The first segment (210) bends away from the bicycle seat relative to the second segment (220), and the angle between the first segment (210) and the second segment (220) is an obtuse angle. The first segment (210) and the first tube (100) extend in the same direction.

2. The vertical pipe according to claim 1, characterized in that, The end of the second segment (220) connected to the first segment (210) is defined as the first end, and the end away from the first segment (210) is defined as the second end. The size of the first end is smaller than the size of the second end.

3. The vertical pipe according to claim 1, characterized in that, The vertical tube also includes a locking member (300), one end of the first tube (100) extends into the first section (210) and can be adjusted relative to the first section (210). The locking member (300) can lock the first tube (100) and the first section (210).

4. The vertical pipe according to claim 3, characterized in that, The vertical pipe also includes a bushing, which is sleeved on the first pipe (100) and sandwiched between the inner wall of the first section (210) and the outer wall of the first pipe (100).

5. The vertical pipe according to claim 1, characterized in that, The length of the first tube (100) is configured to be adjustable.

6. The vertical pipe according to claim 1, characterized in that, The first segment (210) and the second segment (220) are integrally formed.

7. A vehicle frame, characterized in that, Includes the vertical pipe as described in any one of claims 1-6.

8. A three-fold bicycle, characterized in that, The bicycle includes the frame, handlebars (400), fork, and seat as described in claim 7, wherein the first tube (100) is connected to the handlebars (400), the second section (220) is connected to the fork, and the first section (210) is bent away from the seat relative to the second section (220).

9. The three-fold bicycle according to claim 8, characterized in that, The second segment (220) extends in a vertical direction.

10. The three-fold bicycle according to claim 8, characterized in that, The tri-fold bicycle also includes a headset, and the second section (220) is connected to the fork via the headset.

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