Bicycle seat post with guide bar
Patent Information
- Application Number
- CN202522197372.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-17
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2035-10-17
AI Technical Summary
[0003]然而，现有座管上的导引条并不具有压缩弹性，因此，若在生产导引条或于立管上形成导槽时，于其尺寸上产生有若干公差时，导引条便无法顺利的相对导槽移动，而会产生干涉或卡掣的现象，不仅影响座管相对立管的伸缩调整动作，更甚者容易导致导引条的破损，故现有的自行车座管实有进一步改良的必要
Smart Images
Figure CN224703161U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a bicycle seat post, specifically a bicycle seat post with an elastic guide bar. Background Technology
[0002] To accommodate different user heights and body types, existing bicycles typically feature adjustable seat heights. Therefore, the seatpost, which connects to the bicycle seat, is designed to be retractable yet fixed relative to the seat tube of the bicycle frame. To prevent relative rotation between the seatpost and seat tube during retraction and retraction, which could alter the seat angle, at least one guide groove extending axially along the seat tube is recessed into the inner wall of the existing bicycle seat tube. At least one guide bar, movable along the guide groove, is also provided on the outer wall of the seatpost. This restriction of the guide bar by the guide groove prevents rotation of the seatpost relative to the seat tube during retraction and retraction, ensuring the seat maintains its original directional angle when adjusting its height.
[0003] However, the guide bar on the existing seat post does not have compressibility. Therefore, if there are some tolerances in the dimensions when manufacturing the guide bar or forming the guide groove on the seat tube, the guide bar cannot move smoothly relative to the guide groove, which will cause interference or jamming. This not only affects the extension and retraction adjustment of the seat post relative to the seat tube, but also easily leads to the damage of the guide bar. Therefore, there is a real need for further improvement of the existing bicycle seat post. Utility Model Content
[0004] Therefore, in view of the inconveniences and deficiencies in the existing bicycle seatpost guide bar structure and manufacturing, the inventor has created this utility model that can improve upon the existing deficiencies through continuous experimentation and research.
[0005] The main purpose of this utility model is to provide a bicycle seat post with a guide bar, which can avoid interference or jamming when the guide bar moves relative to the bicycle seat post by means of the compressive elasticity generated by the wavy surface of the guide bar, thereby improving the smoothness of adjusting the height of the bicycle seat post.
[0006] To achieve the above objectives, this utility model provides a bicycle seat post with guide strips, comprising:
[0007] A tube body, wherein at least one guide bar extending along the axial direction of the tube body is provided on the outer periphery of the tube body, an elastic groove is recessed on the guide bar, and a wavy surface is formed on at least one side of each guide bar.
[0008] The bicycle seat post with guide strips has three guide strips on the tube body.
[0009] The bicycle seat post with guide strips, wherein at least one guide strip is disposed at a height different from the height of the other guide strips on the outer periphery of the tube body.
[0010] The bicycle seat post with guide bars, wherein a wavy surface is formed on both sides of each guide bar.
[0011] The bicycle seat post with guide strips, wherein the wavy surface of each guide strip is formed at the middle part of the side of the guide strip.
[0012] The bicycle seat post with guide strips, wherein at least one inner side of the elastic groove of each guide strip is formed with a wavy surface.
[0013] The bicycle seat post with guide strips, wherein the two inner sides of the elastic groove of each guide strip are formed with a wavy surface.
[0014] The bicycle seat post with guide strips, wherein each guide strip has at least one elastic groove recessed on a surface other than the surface forming the elastic groove.
[0015] Through the above-mentioned technical means, this utility model can make each guide bar compressible and elastic. If the size of the guide bar or guide groove is due to tolerance, and the guide bar is squeezed by the inner wall of the guide groove, the guide bar will shrink and deform inward due to the squeezing of the inner wall of the guide groove, so that the guide bar can pass through the guide groove smoothly without mutual interference or jamming. This can improve the smoothness of the seat tube's extension and retraction relative to the riser. Attached Figure Description
[0016] Figure 1 This is a three-dimensional view of the present invention combined with a bicycle stem.
[0017] Figure 2 This is a partially enlarged exploded perspective view of the present invention combined with the bicycle stem.
[0018] Figure 3 This is a partially enlarged exploded perspective view of the present invention.
[0019] Figure 4 This is a front view of the guide strip of this utility model.
[0020] Figure 5 This is a partially enlarged three-dimensional view of the present invention.
[0021] Figure 6 This is another enlarged perspective view of the present invention.
[0022] Figure 7 This is a partially enlarged top cross-sectional view of the present invention.
[0023] Figure 8This is a partially enlarged front view of the present invention.
[0024] Figure 9 This is a three-dimensional view of the guide strip of this utility model.
[0025] Figure 10 This is a side cross-sectional view of the guide strip of this utility model.
[0026] Symbol explanation:
[0027] 10: Pipe body
[0028] 12: Receiving slot
[0029] 20: Guide bar
[0030] 202: Wave surface
[0031] 22: Elastic groove
[0032] 222: Wave surface
[0033] 24: Elastic Groove
[0034] 30: Riser
[0035] 32: Guide groove Detailed Implementation
[0036] This utility model provides a bicycle seat post with guide strips; please refer to the following: Figures 1 to 3 The bicycle seatpost with guide strips described in this utility model is mainly telescopically assembled to the end of the bicycle seatpost 30, and its top end can be fixedly connected to a bicycle seat. The seatpost of this utility model mainly includes a tube body 10 and at least one guide strip 20. The structure of the tube body 10 can be the same as the existing structure, which will not be described in detail here. Preferably, three guide strips 20 can be provided on the tube body 10, and at least one receiving groove 12 extending axially along the tube body 10 is recessed on the surface near the bottom end of the tube body 10 to guide the... Each guide bar 20 is housed in the receiving groove 12, so that the guide bar 20 can be axially arranged on the tube body 10. An elastic groove 22 is recessed on one surface of each guide bar 20. The elastic groove 22 extends along the longitudinal direction of the guide bar 20. A wave surface 202 is formed on at least one side of each guide bar 20. Preferably, both sides of each guide bar 20 are formed with a wave surface 202. As shown in the figure, the wave surface 202 of each guide bar 20 is formed in the middle part of the side of the guide bar 20.
[0037] Therefore, please refer to the following: Figure 2 and Figure 7When the seat post is inserted into the riser 30, each guide bar 20 can be relatively movable and extend into the guide groove 32 formed on the inner wall of the riser 30. Thus, when the height of the seat on the seat post is to be adjusted, the seat post moves telescopically relative to the riser, and the guide bars 20 can move along the guide groove 32 on the riser 30. Because the guide bars 20 have elastic grooves 22 and at least one side wavy surface 202 formed on them, when the seat post moves telescopically relative to the riser 30, if the guide bars 20 or... When the guide bar 20 is squeezed by the inner wall of the guide groove 32 due to the dimensional tolerance, the guide bar 20 will shrink and deform inward due to the squeezing of the inner wall of the guide groove 32, so that the guide bar 20 can pass through the guide groove 32 smoothly. Therefore, there will be no mutual interference or jamming. This can improve the smoothness of the extension and retraction of the seat tube relative to the riser 30, and avoid structural damage to the guide bar 20 due to interference or jamming, thus extending the overall service life of the guide bar 20.
[0038] Secondly, please refer to the following: Figure 4 At least one inner side of the elastic groove 22 of each guide bar 20 is also formed with a wave surface 222. Preferably, both inner sides of the elastic groove 22 of each guide bar 20 are formed with a wave surface 222 to improve the compressive elasticity of the guide bar 20, thereby improving the smoothness of the guide bar 20 moving in the guide groove 32 of the riser 30.
[0039] Please refer to the following: Figure 5 , Figure 6 and Figure 8 At least one guide bar 20 is positioned at a different height from the other guide bars 20 on the outer periphery of the tube body 10. This avoids stress concentration when the guide bar 20 on the seat tube moves within the guide groove 32 of the riser 30, thus preventing damage to the structure of the guide bar 20 and further extending its service life.
[0040] Please also refer to the following: Figure 9 and Figure 10 At least one elastic groove 24 is recessed on the other surface of the guide bar 20, which is different from the surface forming the elastic groove 22. Preferably, two elastic grooves 24 can be provided on each guide bar 20, and the two elastic grooves 24 are respectively located near the two ends of the guide bar 20. In this way, by providing the elastic grooves 24, the compressive elasticity of the guide bar 20 can be further improved, making the movement of the guide bar 20 relative to the guide groove 32 smoother.
Claims
1. A bicycle seatpost with guide strips, characterized in that, Includes: A tube body, wherein at least one guide bar extending along the axial direction of the tube body is provided on the outer periphery of the tube body, an elastic groove is recessed on the guide bar, and a wavy surface is formed on at least one side of each guide bar.
2. The bicycle seat post with guide strip as described in claim 1, characterized in that, Three guide strips are installed on the tube body.
3. The bicycle seat post with guide strip as described in claim 2, characterized in that, At least one guide bar is positioned at a height different from the height of the other guide bars on the outer periphery of the tube.
4. The bicycle seat post with guide strip as described in any one of claims 1 to 3, characterized in that, A wave-like surface is formed on both sides of each guide bar.
5. The bicycle seat post with guide strip as described in claim 4, characterized in that, The wavy surface of each guide bar is formed in the middle part of the side of the guide bar.
6. The bicycle seat post with guide strip as described in claim 5, characterized in that, At least one inner side of the elastic groove of each guide bar has a wavy surface.
7. The bicycle seat post with guide strip as described in claim 6, characterized in that, Both inner sides of the elastic groove of each guide bar form a wavy surface.
8. The bicycle seat post with guide strip as described in claim 7, characterized in that, At least one elastic groove is recessed on the other surface of each guide bar, which is different from the surface on which the elastic groove is formed.
9. The bicycle seat post with guide strip as described in claim 1 or 2, characterized in that, At least one inner side of the elastic groove of each guide bar forms a wave-like surface.