Adjustable limit device in bicycle seat tube

Abstract

The invention discloses an adjustable limit device in a bicycle seat tube. The adjustable limit device comprises a seat tube set, an adjusting and locating device and a limit device body, wherein the seat tube set is provided with an outer tube and an inner tube, and the inner tube is sleeved with the outer tube; the limit device body is arranged in the outer tube, has a preset height and is provided with a limit assembly arranged within the moving distance, and the upper end edge of the limit assembly can effectively prevent the adjusting and locating device and the inner tube from continuing linear movement so as to limit the minimum height of the portion, exposed out of the outer tube, of the inner tube in the height adjusting process. In this way, the limit device body is additionally arranged in the seat tube set within the moving range, the inner tube cannot continue moving after moving to make contact with the limit device body, the lowest position of a seat is limited, the movable range of the inner tube is reduced, the locating function of slightly adjusting the seat height in a stepless mode can be achieved, and the effect of quick seat height adjustment and limiting is achieved. Meanwhile, the adjustable limit device is simple in disassembling and assembling structure, easy to disassemble and assemble, wide in overall structure application range and high in practicability.

Description

technical field [0001] The invention relates to a position limiting device, which is especially used on an adjustable seat tube of a bicycle. When adjusting the height of the seat tube, it can limit the lowest moving position of the seat tube, so as to shorten the displacement stroke and quickly adjust the height. Background technique [0002] At present, with regard to the technology of the bicycle seat tube, since a seat cushion needs to be assembled on the top of the seat tube for the rider to sit on, the seat tube needs to meet the different heights of the users due to different heights and shapes, and there are different requirements on the height of the seat cushion. Therefore, The height-adjustable seat tube structure has been developed to adjust the height suitable for each person. In addition to enabling pedaling power transmission to produce the best power output, it can also reduce the chance of injury and relieve leg fatigue. [0003] Seat seat riser technology a...

AI Technical Summary

Problems solved by technology

[0004] Because the seat tube with height adjustment device has a set adjustable height range, that is, the seat tube can produce linear movement on the outer tube. The movable stroke is mostly fixed, and the user cannot adjust it according to the demand. The movable stroke is shortened, or only limited to a certain range in the stroke, so the seat cushion riser must be moved for a longer stroke when adjusting, so that it will take more time to adjust; on the other hand, in When adjusting the seat height of the seat tube, the rider often needs to move the seat tube to the desired height multiple times, and each adjustment needs to loosen and tighten the positioning assembly between the seat tube and the seat tube. , plus the rider has to jump up and down for a test ride every time he adjusts it until he adjusts to the proper height, so the process of adjusting the seat height is quite tedious and complicated

[0005] It is often necessary to adjust the height of the seat cushion. For example, when a bicycle is used by more than two riders, each user needs to spend time and energy to adjust the seat height before riding. It is impossible to complete the adjustment work quickly, or simplify the seat height Adjust the process, or quickly return to the previously used seat height position; when traveling by train or other means of transportation, sometimes the seat cushion must be lowered according to regulations or space to facilitate placement; when the seat cushion height needs to be adjusted again When adjusting, how to quickly adjust to the required height for the next rider or the next ride, and shorten the adjustment time, has become a problem that the industry wants to solve when using the aforementioned

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