Seat tube and vehicle

By designing an off-center clamp in the seatpost, the problem of fixed position of traditional seatpost clamps is solved, enabling flexible adjustment of the saddle position and improving riding experience and convenience.

CN224117416UActive Publication Date: 2026-04-14SHENZHEN KOOF TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN KOOF TECH CO LTD
Filing Date
2025-04-29
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The fixed position of the seat post clamp on traditional bicycles or electric bikes prevents riders from adjusting the seat position according to their riding habits and comfort, thus affecting the riding experience.

Method used

Design a seat post in which the clamp is eccentrically positioned relative to the post body. The clamp can be installed in different directions by a bent second end connector, thus enabling flexible adjustment of the seat position.

Benefits of technology

Riders can adjust the saddle position according to their own habits and comfort to improve the riding experience, and the eccentric setting increases the distance between the chuck and the tube, enhancing convenience and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model relates to a seat tube and a vehicle. The seat tube comprises a tube body, a chuck and a connecting piece. The connecting piece comprises a first end and a second end which are connected, the first end is arranged on the pipe body, the clamping head is arranged at the second end and used for clamping the cushion, and the second end is bent relative to the first end so that the clamping head can be eccentrically arranged relative to the pipe body. Due to the fact that the chuck is eccentrically arranged relative to the pipe body, when the seat pipe is installed, the chuck can face the handlebar, then the cushion is installed, and the distance between the cushion and the handlebar is a first distance. When the seat tube is mounted, the chuck can be back to the handlebar, then the cushion is mounted, the cushion is separated from the handlebar by a second distance, the first distance is smaller than the second distance, and the first distance is not consistent with the second distance; when the seat tube is installed, the position of the seat cushion relative to the handlebar is changed by changing the position of the chuck relative to the handlebar, a rider can adjust the position of the seat cushion according to the riding habit and comfort of the rider, and the riding experience is improved.
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Description

Technical Field

[0001] The embodiments of this application relate to the field of transportation technology. Background Technology

[0002] With the development of transportation technology, a variety of transportation tools have emerged on the market, allowing people to choose the appropriate mode of transportation based on factors such as distance and personal preferences. Among them, small modes of transportation such as bicycles or electric vehicles are often the popular choice for short-distance travel due to their advantages such as being environmentally friendly, flexible, and easy to park.

[0003] In small personal transportation vehicles such as bicycles or electric vehicles, the seat post is a crucial component, used to support the saddle and the user on it. Generally, the seat post consists of a tube body and a clamp set in the tube body for saddle mounting.

[0004] In the process of developing this application, the applicant discovered that: the traditional clamp is located directly above the tube body, and the position of the clamp relative to the handlebar is fixed. When the installation position of the saddle is not considered, the position of the saddle relative to the handlebar is fixed because the position of the clamp relative to the handlebar is fixed. This makes it impossible for the rider to adjust the position of the saddle according to their own riding habits and comfort, thus affecting the riding experience. Utility Model Content

[0005] In view of the above problems, embodiments of this application provide a seat tube and a means of transportation that overcomes or at least partially solves the above problems.

[0006] According to one aspect of the present application, a seat post is provided, including a tube body, a clamp, and a connector; the connector includes a first end and a second end, the first end being disposed on the tube body, the clamp being disposed on the second end, the clamp being used to clamp the seat cushion, and the second end being bent relative to the first end so that the clamp is eccentrically disposed relative to the tube body.

[0007] In one alternative, the second end is bent radially relative to the first end along the tube body.

[0008] In one alternative embodiment, the clamp includes a locking assembly and a fastener. The locking assembly includes a first locking member and a second locking member. The fastener passes through the first locking member and the second locking member and is locked to the second end of the connector. The first locking member has a first groove on the side opposite to the tube body, and the second locking member has a second groove on the side opposite to the tube body. The first groove and the second groove together form an mounting groove for clamping the seat cushion.

[0009] In one alternative, the second locking member is disposed around the first locking member.

[0010] In one alternative embodiment, the second end of the connector is provided with a first limiting groove, and the second locking member extends into the first limiting groove.

[0011] In one alternative approach, the direction in which the second end bends relative to the first end is defined as a first direction, and the first direction has a preset angle with the axial direction of the tube body. A second direction is defined as perpendicular to both the first direction and the axial direction of the tube body. The number of locking components is two, and the two locking components are disposed opposite to each other at the second end of the connector along the second direction. The fastener locks the two locking components to the second end of the connector.

[0012] In one alternative embodiment, the second locking member is provided with a second limiting groove, and the clamp further includes a sleeve that extends through the second end of the connector and abuts against the second limiting groove.

[0013] In an alternative embodiment, the chuck further includes an elastic element disposed on the sleeve, the elastic element surrounding the fastener, and the elastic element abutting against the first locking element of each of the two locking assemblies.

[0014] In one alternative embodiment, the first locking member includes a main body, a mounting post disposed on the main body, and at least one protrusion extending along the main body, the mounting post being arranged around the second locking member, and the fastener penetrating the main body and the mounting post.

[0015] According to one aspect of the embodiments of this application, a means of transportation is provided, including the seat tube described above.

[0016] The beneficial effects of this application embodiment include: providing a seatpost, including a tube body, a clamp, and a connector; the connector includes a first end and a second end, the first end being disposed on the tube body, the clamp being disposed on the second end, the clamp being used to clamp the saddle, and the second end being bent relative to the first end so that the clamp is eccentrically positioned relative to the tube body. With this seatpost, because the clamp is eccentrically positioned relative to the tube body, when installing the seatpost, the clamp can be installed facing the handlebars, i.e., the clamp is located between the tube body and the handlebars, and then the saddle is installed, at which point the saddle is a first distance from the handlebars; alternatively, when installing the seatpost, the clamp can be installed facing away from the handlebars, i.e., the tube body is located between the clamp and the handlebars, and then the saddle is installed, at which point the saddle is a second distance from the handlebars. The first distance is less than the second distance, and the first and second distances are not the same; when installing the seatpost, by changing the position of the clamp relative to the handlebars, the position of the saddle relative to the handlebars can be changed, allowing the rider to adjust the saddle position according to their riding habits and comfort, thus improving the riding experience. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0018] Figure 1 This is a schematic diagram of the seat tube provided in an embodiment of this application;

[0019] Figure 2 The embodiments of this application provide the following: Figure 1 A sectional view of P;

[0020] Figure 3 This is a schematic diagram of another direction of the seat tube provided in the embodiment of this application;

[0021] Figure 4 The embodiments of this application provide the following: Figure 3 A cross-sectional view of Q.

[0022] The attached figures are labeled as follows:

[0023] 100. Seat tube;

[0024] 10. Pipe body; 20. Clamp; 30. Connector;

[0025] 21. Locking assembly; 22. Fastener; 23. Sleeve; 24. Elastic element;

[0026] 211. First locking element; 212. Second locking element;

[0027] 2111. Main body; 2112. Mounting column; 2113. Protrusion;

[0028] 211a, First groove; 212a, Second groove; 21a, Mounting groove;

[0029] 212b, Second limiting groove;

[0030] 31. First end; 32. Second end; 30s. Through hole;

[0031] 32a. First limiting groove;

[0032] o1, Axial direction of the tube; D1, First direction; D2, Second direction. Detailed Implementation

[0033] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific examples. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0035] Please see Figure 1The seat post 100 provided in this application embodiment includes: a tube body 10, a clamp 20, and a connector 30; the connector 30 includes a first end 31 and a second end 32 connected together, the first end 31 is disposed on the tube body 10, the clamp 20 is disposed on the second end 32, the clamp 20 is used to clamp the seat cushion, and the second end 32 is bent relative to the first end 31 so that the clamp 20 is eccentrically disposed relative to the tube body 10. With the seatpost 100, since the clamp 20 is eccentrically positioned relative to the tube body 10, when installing the seatpost 100, the clamp 20 can be installed facing the handlebars, i.e., the clamp 20 is located between the tube body 10 and the handlebars, and then the saddle is installed. In this case, the saddle is at a first distance from the handlebars. Alternatively, when installing the seatpost 100, the clamp 20 can be installed facing away from the handlebars, i.e., the tube body 10 is located between the clamp 20 and the handlebars, and then the saddle is installed. In this case, the saddle is at a second distance from the handlebars. The first distance is smaller than the second distance, and the first and second distances are not the same. By changing the position of the clamp 20 relative to the handlebars when installing the seatpost 100, the position of the saddle relative to the handlebars can be changed. Riders can adjust the position of the saddle according to their own riding habits and comfort, thereby improving the riding experience.

[0036] The eccentricity of the chuck 20 relative to the tube body 10 means that the center of gravity of the chuck 20 does not coincide with the center of gravity of the tube body 10, that is, the center of gravity of the chuck 20 deviates from the axial direction o1 of the tube body 10.

[0037] In some embodiments, the second end 32 is bent radially relative to the first end 31 along the tube 10. With this arrangement, when the actual distance between the second end 32 and the first end 31 remains constant, the distance between the second end 32 and the tube 10 along the radial direction is maximized. This not only increases the distance between the clamp 20 and the tube 10 in the radial direction, but also increases the distance between the seat cushion mounted on the clamp 20 and the tube 10 in the radial direction, thereby further improving the rider's convenience in adjusting the seat.

[0038] In some embodiments, the connector 30 is further provided with a through hole 30s, which is located between the first end 31 and the second end 32. The through hole 30s can be used as a material reduction port to reduce the overall weight of the seat post 100. The through hole 30s can also be used as a hanging hole to allow the rider to hang other items at the through hole 30s.

[0039] In some embodiments, please refer to Figure 2The first end 31 is inserted into the tube body 10 along the axial direction o1, providing a specific way in which the first end 31 of the connector 30 is disposed in the tube body 10. It is understood that the way in which the first end 31 of the connector 30 is disposed in the tube body 10 is not limited to the above form.

[0040] In some embodiments, please refer to Figure 3 and Figure 4 The clamp 20 includes a locking assembly 21 and a fastener 22. The locking assembly 21 includes a first locking member 211 and a second locking member 212. The fastener 22 passes through the first locking member 211 and the second locking member 212 and is locked to the second end 32 of the connector 30. The first locking member 211 is provided with a first groove 211a along the axial direction o1 of the tube 10 away from the tube 10. The second locking member 212 is provided with a second groove 212a along the axial direction o1 of the tube 10 away from the tube 10. The first groove 211a and the second groove 212a surround each other to form an installation groove 21a for clamping the cushion. With this setting, the position of the cushion can be easily adjusted and fixed to ensure a tight fit between the cushion and the clamp 20.

[0041] It is worth noting that the fastener 22 may be a locking part such as a screw, bolt or stud.

[0042] In some embodiments, the first groove 211a is a through groove and the second groove 212a is a through groove to accommodate the installation of the connecting rod on the seat cushion.

[0043] It is understandable that the connecting rod on the seat cushion is generally a round tube. Therefore, the cross-section of the first groove 211a is arc-shaped, the cross-section of the second groove 212a is arc-shaped, and the cross-section of the mounting groove 21a formed by the first groove 211a and the second groove 212a is arc-shaped, which makes it easier to fit the connecting rod on the round tube-shaped seat cushion.

[0044] In some embodiments, the second locking member 212 is disposed around the first locking member 211, thereby limiting the radial displacement of the second locking member 212 and improving the structural stability of the locking assembly 21.

[0045] In some embodiments, the second end 32 of the connector 30 is provided with a first limiting groove 32a, and the second locking member 212 extends to the first limiting groove 32a. By providing the first limiting groove 32a, the first limiting groove 32a restricts the position of the second locking member 212 and improves the structural stability of the locking assembly 21.

[0046] It is worth noting that, in some descriptions, the first limiting groove 32a is annular, and the first limiting groove 32a is arranged around the fastener 22 to enhance the limiting effect on the second limiting member and further improve the structural stability of the locking assembly 21.

[0047] In some embodiments, the direction in which the second end 32 bends relative to the first end 31 is defined as the first direction D1, and the first direction D1 has a preset angle with the axial direction o1 of the tube body 10. The second direction D2 is defined as perpendicular to the first direction D1 and the axial direction o1 of the tube body 10. There are two locking components 21, and the two locking components 21 are disposed opposite to each other on the second end 32 of the connector 30 along the second direction D2. The fastener 22 locks the two locking components 21 to the second end 32 of the connector 30. By setting the two locking components 21, the locking effect of the clamp 20 on the seat cushion is improved.

[0048] It is understood that since the second end 32 is bent relative to the first end 31, so that the clamp 20 is eccentrically positioned relative to the tube body 10, the preset included angle is not zero. Preferably, the preset included angle is 90 degrees, which is equivalent to the aforementioned second end 32 being bent relative to the first end 31 along the radial direction of the tube body 10.

[0049] In some embodiments, the second locking member 212 is provided with a second limiting groove 212b, and the clamp 20 further includes a sleeve 23, which passes through the second end 32 of the connector 30 and abuts against the second limiting groove 212b. By providing the sleeve 23, the position of the second locking member 212 can be limited, thereby improving the structural stability of the locking assembly 21.

[0050] In some embodiments, the clamp 20 further includes an elastic element 24 disposed on the sleeve 23 and surrounding the fastener 22. The elastic element 24 abuts against the first locking members 211 of the two locking assemblies 21. By utilizing the elastic deformation capability of the elastic element 24, the position between the two first locking members 211 of the two locking assemblies 21 can be adjusted, the position of the first groove 211a and the second groove 212a can be adjusted, and the size of the mounting groove 21a can be adjusted, thereby improving the installation adaptability of the seat cushion.

[0051] In some embodiments, the first locking member 211 includes a main body 2111, a mounting post 2112 disposed on the main body 2111, and at least one protrusion 2113 extending along the main body 2111. The mounting post 2112 is used to surround the second locking member 212 to restrict the position of the second locking member 212 and improve the structural stability of the locking assembly 21. The fastener 22 passes through the main body 2111 and the mounting post 2112. The mounting post 2112 is also used for the elastic member 24 to abut. The protrusion 2113 is used for user hand gripping to improve the convenience of installing the seat cushion onto the locking assembly 21.

[0052] It is worth noting that in some embodiments, the elastic element 24 is a spring.

[0053] It is worth noting that in some embodiments, there are two protrusions 2113, which are arranged opposite to each other.

[0054] In some embodiments, the first groove 211a provided on the first locking member 211 is located on the protrusion 2113.

[0055] This application also provides an embodiment of a vehicle, which includes the seat post 100. The vehicle can be a bicycle, an electric vehicle, etc. For the specific structure and function of the seat post 100, please refer to the above embodiments; they will not be repeated here.

[0056] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A seat tube, characterized in that, include: Pipe body, clamps and connectors; The connector includes a first end and a second end. The first end is disposed on the tube body, and the clamp is disposed on the second end. The clamp is used to clamp the cushion. The second end is bent relative to the first end so that the clamp is eccentrically disposed relative to the tube body.

2. The seat tube according to claim 1, characterized in that, The second end is bent radially relative to the first end of the tube.

3. The seat tube according to claim 1 or 2, characterized in that, The clamp includes a locking assembly and a fastener. The locking assembly includes a first locking member and a second locking member. The fastener passes through the first locking member and the second locking member and is locked to the second end of the connector. The first locking member has a first groove on the side opposite to the tube body along the axial direction of the tube body. The second locking member has a second groove on the side opposite to the tube body along the axial direction of the tube body. The first groove and the second groove together form an installation groove for clamping the cushion.

4. The seat tube according to claim 3, characterized in that, The second locking member is arranged around the first locking member.

5. The seat tube according to claim 3, characterized in that, The second end of the connector is provided with a first limiting groove, and the second locking member extends to the first limiting groove.

6. The seat tube according to claim 3, characterized in that, The direction in which the second end bends relative to the first end is defined as the first direction, and the first direction has a preset angle with the axis of the tube body. The second direction is defined as perpendicular to both the first direction and the axis of the tube body. The number of locking components is two, and the two locking components are disposed opposite to each other at the second end of the connector along the second direction. The fastener locks the two locking components to the second end of the connector.

7. The seat tube according to claim 6, characterized in that, The second locking member is provided with a second limiting groove, and the clamp further includes a sleeve that passes through the second end of the connector and abuts against the second limiting groove.

8. The seat tube according to claim 7, characterized in that, The chuck further includes an elastic element disposed on the sleeve, the elastic element surrounding the fastener, and the elastic element abutting against the first locking element of each of the two locking assemblies.

9. The seat tube according to claim 3, characterized in that, The first locking member includes a main body, a mounting post disposed on the main body, and at least one protrusion extending along the main body. The mounting post is used for the second locking member to be arranged around it, and the fastener passes through the main body and the mounting post.

10. A means of transportation, characterized in that, Includes the seat tube as described in any one of claims 1-9.