Body-building sit-up device with angle convenient to adjust

Abstract

The invention provides a body-building sit-up device with an angle convenient to adjust. The body-building sit-up device comprises a knee joint roller, a first fixing frame, an ankle joint roller, a supporting plate, a second fixing frame, a supporting frame, a central controller and a timer, wherein the first fixing frame is provided with an angle adjusting assembly used for adjusting the direction of the ankle joint roller relative to the knee joint roller, and the second fixing frame is provided with a supporting plate adjusting assembly used for adjusting the angle of the supporting plate; the two sides of the supporting plate are symmetrically provided with two monitoring limiting assemblies which are used for monitoring whether the back of a user lies on the supporting plate or not and clamping the upper body of the user when back lying time reaches a preset value in the central controller; and each monitoring limiting assembly comprises an elastic sleeve, a connecting rod frame, a first sliding rod, a first elastic piece, a connecting plate, a pressing plate, a second sliding rod, a limiting plate, a second elastic piece, a third elastic piece, a pressure sensor, a mounting frame and an adjusting mechanism used for opening the elastic sleeve. With the body-building sit-up device, the angle of the legs of the user during exercise can be adjusted, and the user can be supported in an auxiliary mode when the user cannot get up.

Description

Technical field [0001] The present invention relates to the technical field of fitness equipment, and more particularly to a sit-ups that facilitate adjustment angles. Background technique [0002] Sit-up is a way to exercise. Outside, two legs, two hands, use the abdominal muscle contraction, the arms are swung forward, quickly into the seat, the upper body continues to flexion, the upper hand, low; then restore to sitting, so continuous. [0003] China Patent Publication No. CN212466983U discloses a sit-ups for fitness facilitating the adjustment angle, including the device main body, the upper end edge of the apparatus main body, is mounted on both sides of the carrier mounting The leg wheel is provided with a connecting mechanism between the pressure leg wheel and the carrier, and the front end of the upper end of the upper end of the apparatus body is attached, and a connecting groove is mounted in the center of the carrier, the connecting tank. The interior is mounted with ...

AI Technical Summary

Problems solved by technology

[0004] But above-mentioned patent can not be adjusted to leg presser wheel to expand adjustment range, can not be suitable for the user of different body conditions comfortably, moreover, when the user appears physical strength in the exercise process, it is difficult to get up from the lying board

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