Angle adjusting mechanism for body-building machine

Abstract

The invention relates to an angle adjusting mechanism for a body-building machine. The angle adjusting mechanism comprises a base, a lifting motor, an output lead screw of the lifting motor, a screw nut, small pivot shafts, two pivot plates, a transverse shaft, left and right pivot shaft seats, pivot shafts, left and right inclined columns, left and right bearing pedestals, left and right upper pivot shafts and left and right inclined struts, wherein the left and the right inclined struts are respectively pivoted on the left and the right upper pivot shafts. Wheel grooves are arranged at the lower ends of the left and the right inclined struts; and rollers are installed in the wheel grooves based on wheel shafts. The left and the right rollers are respectively installed in left and right rails on the base. The inner sides of the lower parts of the left and the right inclined struts are respectively provided with left and right shaft holes; and the transverse shaft is installed in the left and the right shaft holes and can oppositely rotate. The angle adjusting mechanism has the beneficial effects that the stepless and continuous angle adjustment is realized, and the demands on adjusting to any angle within a certain scope can be satisfied; the automation adjustment is realized, the labor and the time are saved, the control is convenient, and the offline operation is not required; the adjustment precision is high, and the operation is very stable during the adjustment and after adjustment; and the adjustable angle scope is also large. The angle adjusting mechanism can be widely applied to various body-building machines needing angle adjustment.

Description

technical field [0001] The invention belongs to the technical field of fitness equipment, and more specifically relates to a design innovation of an angle adjustment mechanism of a fitness machine. Background technique [0002] The angle adjustment mechanisms of traditional fitness machines are various. Mostly all make a row of circumferentially distributed holes on a rotatable arc disc. The arc disc is rotated so that a live pin is inserted into different holes of the arc disc through the holes on the frame, so that the relative angle of the arc disc can be adjusted. If other parts are fixed on the arc disc, the relative angles of these parts are also adjusted. [0003] The applicant's Publication No. CN200951286 and patent No. 200620088246.X are exactly such a structure. The forked push handle is sleeved on the rotating shaft. An arc-shaped plate is sleeved on the rotating shaft, and a row of pin holes are arranged on the arc-shaped plate. The traction pulley block is...

AI Technical Summary

Problems solved by technology

This angle adjustment mechanism is simple and low in cost, but has the following disadvantages: the adjustment of the angle has steps and is discontinuous, and cannot meet the needs of continuous stepless adjustment and can be adjusted to any angle; the adjustment relies on manual operation and cannot be automated. It is labor-intensive and time-consuming, and it is often inconvenient to get off the machine; the adjustment accuracy is low, so the operation during and after adjustment is not stable enough; due to the mutual interference of various parts in a limited space, the adjustable angle range is often relatively small. Small

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