Body retractable self-moving slide board

Abstract

The invention discloses a body collapsible self-propelled slide, which comprises the following parts: front slide (1) with front-wheel (18) on the carriage (4), back slide (6) with front-to-back mobile one-way rotating back-wheel (11) and stretching spring (26) of keeping the back slide contracting tendency under the front and back slide, wherein the carriage (4) contains two stretching slideways (5) whose cross section is composed of grooved section bar (5-1, 5-2, 5-3) with interembedding connection; the ball track (5-5, 5-10) is set between two lateral walls of grooved section bar, which concludes balls (5-6, 5-11) of holder (5-7, 5-12) limit separation; the limit component (5-8, 5-9, 5-13, 5-14) is set between two grooved section bars to avoid balls (5-6, 5-11) pull-apart; the front slide (1) is fixed on the outboard of outer layer grooved section bar (5-1) or inner layer grooved section bar (5-2) by vertical downward stretching element (3, 8); the back slide (6) is fixed on the outboard of inner layer grooved section bar (5-2) or outer layer grooved section bar (5-1) by vertical downward stretching element (8).

Description

Technical field: [0001] The invention relates to a skateboard, in particular to a self-propelled skateboard with a telescopic transmission mechanism, which is suitable for dryland skating. Background technique: [0002] I submitted a utility model patent application for a "self-propelled skateboard" to the State Intellectual Property Office (application number: 200420014349.2). The rear wheel and the foot brake device located on the upper part of the rear wheel are characterized in that the pedal is composed of a front pedal for the front foot and a rear skateboard for the rear foot; the front wheel is pivoted under the front pedal, and the front pedal is pivoted. Connected to the front end of a frame; there is a tension spring under the frame, one end of the tension spring is connected under the rear slide, and the other end is connected to the front of the frame, and a guiding connection is provided between the rear slide and the frame mechanism; the rear wheel is pivotal...

AI Technical Summary

Problems solved by technology

But in practice, it is found that this self-propelled skateboard has the following deficiencies: 1. Although the rear skateboard can be stretched, the vehicle frame is an integral groove-shaped square frame, which causes the entire vehicle body to be long, which is neither easy to carry nor easy to store, and also affects the Beautiful; 2. One front wheel is pivotally connected under the front pedal, and the spokes are always in the same plane as the rotation centerline of the front skateboard, so the steering is not flexible

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