Title:
COUNTERWEIGHT-FREE BODY-BUILDING DEVICE WITH STEPLESS ADJUSTABLE TENSION
Document Type and Number:
WIPO Patent Application WO/2022/179055
Kind Code:
A1
Abstract:
Disclosed is a counterweight-free body-building device with stepless adjustable tension. The device comprises a bracket, a sliding seat, a driving mechanism, a pull rod, a limiting seat, an elastic member and a pull rope. The sliding seat is installed on the bracket in a vertically moving manner; the driving mechanism is arranged on the bracket and connected to the sliding seat to drive the sliding seat to move up and down; the pull rod is arranged at one side of the sliding seat, and the lower end of the pull rod is rotationally connected to the bracket; the limiting seat is slidably installed on the sliding seat; one end of the elastic member is connected to the sliding seat, the other end thereof is connected to the limiting seat, and the elastic member is arranged to drive the limiting seat to abut against the pull rod; and the pull rope is connected to the pull rod. In the body-building device, the stress point of the pull rod can be changed by changing the position of the sliding seat to steplessly adjust the tension, resulting in a simple adjustment process, convenient use, and an ingenious concept; and by means of such a structural form, a counterweight can be omitted, thereby greatly reducing the weight of the device, making the structure of the device small and light, and making the device convenient to transport and install.
Inventors:
LI YINSHENG (CN)
QIN PENGFEI (CN)
QIN PENGFEI (CN)
Application Number:
PCT/CN2021/111792
Publication Date:
September 01, 2022
Filing Date:
August 10, 2021
Export Citation:
Assignee:
SHANGHAI YINSHENG TECH CO LTD (CN)
International Classes:
A63B21/055
Foreign References:
| CN113018762A | 2021-06-25 | |||
| CN113018761A | 2021-06-25 | |||
| US20150105223A1 | 2015-04-16 | |||
| KR101481598B1 | 2015-01-14 | |||
| AU8609098A | 2000-03-23 | |||
| CN107361996A | 2017-11-21 | |||
| CN206675899U | 2017-11-28 | |||
| CN110051968A | 2019-07-26 | |||
| CN108704253A | 2018-10-26 |
Attorney, Agent or Firm:
BEIJING SHENGFANZHIRONG INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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