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CN-117775148-B - Bicycle seat tube structure capable of being adjusted quickly

CN117775148BCN 117775148 BCN117775148 BCN 117775148BCN-117775148-B

Abstract

The invention relates to the field of adjusting seat pipes, and discloses a bicycle seat pipe structure capable of being adjusted quickly, which has the technical scheme that the bicycle seat pipe structure comprises a fixed sleeve and a seat pipe body, wherein a plurality of fixed grooves are formed in the fixed sleeve, the fixed grooves are distributed along the length direction of the fixed sleeve, one end of the seat pipe body is matched with the fixed sleeve in a sliding manner and is provided with a plurality of sliding blocks, a push rod is arranged in the seat pipe body, the push rod slides in the axis direction of the seat pipe body, one end of the seat pipe body, which is arranged in the fixed sleeve, is provided with a connecting component, when the push rod moves towards the direction close to the connecting assembly, the sliding blocks are mutually close to and separated from the fixing grooves so that the seat tube body and the fixing sleeve can relatively slide, when the push rod moves towards the direction far away from the connecting assembly, the sliding blocks are mutually far away from and are mutually clamped with the fixing grooves so as to fix the seat tube body, and the novel seat tube has the characteristics of capability of being quickly disassembled and assembled, quick adjustment, reliability in locking and insignificant cost and weight increase.

Inventors

  • FANG YUNZHOU
  • HUO JUN
  • GUO ZEYU

Assignees

  • 南京迅之蜂智能科技有限公司

Dates

Publication Date
20260508
Application Date
20231226

Claims (7)

  1. 1. A bicycle seat tube structure capable of being quickly adjusted is characterized by comprising The fixing sleeve (1), a plurality of fixing grooves (101) are formed in the fixing sleeve (1), the fixing grooves (101) are distributed along the length direction of the fixing sleeve (1), The seat tube comprises a seat tube body (2), wherein one end of the seat tube body (2) is slidably matched with a fixed sleeve (1) and provided with a plurality of sliding blocks (4), a push rod (3) is arranged in the seat tube body (2), the push rod (3) slides along the axis direction, the seat tube body (2) is internally arranged at one end of the fixed sleeve (1) and is provided with a connecting component, so that when the push rod (3) moves towards the direction close to the connecting component, the sliding blocks (4) are mutually close to and separated from a fixed groove (101) to enable the seat tube body (2) and the fixed sleeve (1) to relatively slide, and when the push rod (3) moves towards the direction far away from the connecting component, the sliding blocks (4) are mutually far away from each other and are mutually clamped with the fixed groove (101) to fix the seat tube body (2); The connecting component comprises an end cap (5) and a safety pin (6), one end of the safety pin (6) is fixedly connected with the push rod (3), a first triggering part (61) and a plurality of second triggering parts (62) are formed on the safety pin (6), the second triggering parts (62) are formed at one end, far away from the push rod (3), of the safety pin (6), the second triggering parts (62) are arranged in one-to-one correspondence with the sliding blocks (4), The end cap (5) is fixedly connected with the seat tube body (2), an accommodating space (501) for accommodating the sliding block (4) is formed in the end cap (5), the sliding block (4) is in sliding fit with the end cap (5) so that the sliding block (4) can be exposed out of or arranged in the end cap (5), a first matching part (402) and a second matching part (403) are formed on the sliding block (4), and when the push rod (3) slides, the first triggering part (61) is matched with the first matching part (402), and the second triggering part (62) is matched with the second matching part (403); the sliding block comprises a plurality of sliding blocks (4), wherein an overlapping area exists between the sliding blocks (4), the sliding blocks can slide relatively, the overlapping areas of the sliding blocks (4) are provided with first through holes (401), the first through holes (401) are mutually communicated and are used for allowing the safety pins (6) to pass through, the first matching parts (402) are conical surfaces arranged at one ends of the first through holes (401), the first triggering parts (61) are conical guide surfaces, and when the first triggering parts (61) and the first matching parts (402) are propped against each other, the first triggering parts (61) sequentially push the sliding blocks (4) to be close to each other so that the sliding blocks (4) are internally retracted in the end caps (5).
  2. 2. The bicycle seat tube structure capable of being quickly adjusted according to claim 1, wherein the second triggering part (62) is L-shaped, a first wedge surface (621) is formed at the end part of the second triggering part (62), a second wedge surface (405) is formed on the sliding block (4), and when the push rod (3) moves in a direction away from the sliding block (4), the first wedge surface (621) and the second wedge surface (405) prop against each other and push the sliding block (4) away from each other so that the sliding block (4) is exposed out of the end cap (5).
  3. 3. The bicycle seat tube structure capable of being quickly adjusted according to claim 1, wherein an adjusting handle (71) is rotatably connected to the seat tube body (2), the adjusting handle (71) is arranged on one side, away from the end cap (5), of the seat tube body (2), an abutting portion (711) is formed on the adjusting handle (71), the abutting portion is used for abutting against the end portion of the push rod (3), and when the adjusting handle (71) rotates, the abutting portion (711) slides relatively with the push rod (3) and pushes the push rod (3) to slide axially.
  4. 4. The bicycle seat tube structure capable of being adjusted quickly according to claim 1, wherein a reset assembly is arranged on the push rod (3), the reset assembly comprises a clamp spring (31) and a compression spring (32), the clamp spring (31) is fixedly connected with the push rod (3), the compression spring (32) is sleeved on the push rod (3), one end of the compression spring (32) abuts against the clamp spring (31), and the other end of the compression spring (32) abuts against the end cap (5).
  5. 5. The rapidly adjustable bicycle seat tube structure according to claim 1, wherein the taper of the conical guide surface is smaller than the taper of the conical surface.
  6. 6. A bicycle seat tube structure capable of being adjusted rapidly according to claim 3, wherein a guide piece (7) is fixedly connected to the seat tube body (2), the push rod (3) is connected with the guide piece (7) in a sliding mode, and the adjusting handle (71) is connected with the guide piece (7) in a rotating mode.
  7. 7. The bicycle seat tube structure capable of being adjusted quickly according to claim 1, wherein a flange (102) is formed on one side of the fixing sleeve (1) close to the seat tube body (2).

Description

Bicycle seat tube structure capable of being adjusted quickly Technical Field The invention relates to the field of adjusting seat pipes, in particular to a bicycle seat pipe structure capable of being adjusted quickly. Background With the development of green economy and shared economy, bicycles become a common and popular travel tool. The bicycle seat tube is connected with the structure of the bicycle seat cushion and the bicycle frame main body, and mainly plays a role in adjusting the height of the seat cushion. The bicycle seat tube is often required to be adjusted in height according to different users or different use situations in use, or the seat tube is detached and installed in the process of transportation and storage. Currently, two types of seat tubes for bicycles mainly exist, namely a common seat tube and a lifting seat tube, and the two types of seat tubes are fixed with a bicycle frame through clamping rings. The lifting seat tube is additionally provided with a section of movable connecting rod in the common seat tube, so that the problem of height adjustment is improved, the defects of limited adjustment range, obvious weight increase, complicated adjustment mechanism, high cost and the like still exist, and the disassembly process of the seat tube structure becomes more complicated. Disclosure of Invention Aiming at the defects of the prior art, the invention aims to provide a bicycle seat tube structure capable of being quickly adjusted, which is used for overcoming the defects in the prior art and has the characteristics of quick disassembly and assembly, quick adjustment, reliable locking and insignificant increase of cost and weight. In order to achieve the above purpose, the present invention provides the following technical solutions: A bicycle seat tube structure capable of being quickly adjusted comprises The fixing sleeve is provided with a plurality of fixing grooves which are distributed along the length direction of the fixing sleeve, The seat tube comprises a seat tube body, one end of the seat tube body is slidably matched with the fixed sleeve and provided with a plurality of sliding blocks, a push rod is arranged in the seat tube body and slides along the axis direction, a connecting assembly is arranged at one end of the fixed sleeve in the seat tube body, so that when the push rod moves towards the direction close to the connecting assembly, the sliding blocks are mutually close to and separate from a fixed groove to enable the seat tube body and the fixed sleeve to relatively slide, and when the push rod moves towards the direction far away from the connecting assembly, the sliding blocks are mutually far away from and are mutually clamped with the fixed groove to fix the seat tube body. In the invention, preferably, the connecting component comprises an end cap and a safety pin, one end of the safety pin is fixedly connected with the push rod, the safety pin is provided with a first triggering part and a plurality of second triggering parts, the second triggering parts are formed at one end of the safety pin, which is far away from the push rod, and the second triggering parts are arranged in one-to-one correspondence with the sliding blocks, The end cap with seat pipe body fixed connection, be formed with the accommodation space who holds the slider on the end cap, the slider with end cap sliding fit makes the slider can expose in or the built-in the end cap, be formed with first cooperation portion and second cooperation portion on the slider, when the push rod slides, first trigger portion with first cooperation portion looks adaptation, second trigger portion with second cooperation portion looks adaptation. In the present invention, preferably, there are overlapping areas between the plurality of sliders, and the overlapping areas can slide relatively, the overlapping areas of the sliders are each provided with a first through hole, the first through holes are communicated with each other and are through by the safety pin, the first matching portion is specifically a conical surface disposed at one end of the first through hole, the first triggering portion is specifically a conical guiding surface, and when the first triggering portion abuts against the first matching portion, the first triggering portion sequentially pushes the sliders to approach each other so that the sliders are retracted in the end caps. In the present invention, preferably, the second trigger portion has an L-shape, a first wedge surface is formed at an end of the second trigger portion, and a second wedge surface is formed on the slider, and when the push rod moves in a direction away from the slider, the first wedge surface and the second wedge surface abut against each other and push the slider away from each other so that the slider is exposed from the end cap. In the present invention, preferably, an adjusting handle is rotatably connected to the seat tube body, the adjusting handle