Pull-up training assisting device and pull-up training device

Abstract

The invention relates to a pull-up training assisting device and a pull-up training device. The pull-up training assisting device comprises a pit (1), a first plunger cylinder (2), a support plate (3), guide sleeves (4), guide pillars (5), a second plunger cylinder (6), a counterweight rack (7), a counterweight storage rack (8), counterweights (9), a first limiting block (10) and a second limiting block (12), as well as a first locking mechanism (11) and a second locking mechanism (13), wherein the first plunger cylinder (2) is connected with the bottom surface of the pit (1); the support plate (3) is connected with a plunger of the first plunger cylinder (2); the guide sleeves (4) are connected with the bottom surface of the pit (1); the top ends of the guide pillars (5) are connected with the support plate (3), and a rod body of each guide pillar (5) is connected with the corresponding guide sleeve (4) in a sliding manner; the second plunger cylinder (6) communicates with the first plunger cylinder (2); the counterweight rack (7) is connected with a plunger of the second plunger cylinder (6); the counterweight storage rack (8) is positioned at one side of the counterweight rack (7); the counterweights (9) are arranged on the counterweight rack (7) or / and the counterweight storage rack (8); the first limiting block (10) and the second limiting block (12) are connected with two opposite side walls of the pit (1); the first locking mechanism (11) and the second locking mechanism (13) are connected with the supporting plate (3).

Description

technical field [0001] The invention relates to the technical field of auxiliary appliances for physical education units and public sports venues, in particular to a pull-up training booster and a pull-up training device. Background technique [0002] Pull-ups, one of the test selection items for the physical education entrance examination and high school physical education examination, mainly test the development level of upper limb muscle strength. It is an examination item for male upper limb strength. It is a hanging strength exercise that overcomes its own gravity with its own strength. It is the most basic method of exercising the back, and it is also one of the important reference standards and items for measuring male physique. Pull-ups require men to have certain grip strength, upper body strength and shoulder girdle strength, and this strength must be able to overcome their own body weight to complete once. Pull-ups play an important role in developing upper body ...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, most of the pull-up assisting devices are elastic devices. With the movement of the body, the elastic force provided by the elastic device changes continuously, and cannot provide a constant auxiliary pulling force.

When the body position of the pull-up person rises for a certain distance, the power of the power-assisted device will decrease. At this time, the trainer may still not be able to complete the entire pull-up action

In addition, the size of the boost provided by the booster device cannot be displayed, which is not conducive to the trainer's understanding of the training effect; if the booster is too large, a good training effect cannot be achieved; if the booster is too small, the entire pull-up action may not be completed; the elastic booster device provides When the elongation is the same, the size of the booster is the same. Different trainers need to provide the best booster with different sizes. The elastic booster device cannot meet this requirement.

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