Elastic force trainer
By designing a rotatably connected elastic trainer connector and an annular elastic rope, the friction and shear force problems between the elastic rope and the connector are solved, the service life is extended and the manufacturing cost is reduced.
CN223311592UActive Publication Date: 2025-09-09SHANGHAI YUANTU TECH CO LTD
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Patent Information
- Application Number
- CN202422719189.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-08
AI Technical Summary
Technical Problem
The existing cross-shaped tensioner has severe friction between the elastic rope and the connecting hole, which causes the elastic rope to wear and the connecting parts to be damaged, resulting in a short service life.
Method used
A rotatably connected first connector and a second connector are used, which are connected through a rotating assembly to ensure that the elastic member is subjected to consistent force directions, avoid friction and shear force, use a ring-shaped elastic rope or elastic band, and set limit protrusions and bearings at the connection to prevent it from falling out.
Benefits of technology
The service life of the elastic rope is extended, damage to the connecting parts is avoided, the structure is simplified and the manufacturing cost is reduced.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model relates to an elasticity training device which comprises a first connecting piece and a second connecting piece, stretchable elastic pieces are arranged at the two ends of the first connecting piece and the two ends of the second connecting piece respectively, the first connecting piece is connected with the second connecting piece through a rotating assembly, and the elastic pieces are connected with the first connecting piece through the rotating assembly. And the first connecting piece and the second connecting piece can rotate in a plane. According to the elasticity training device provided by the utility model, the first connecting piece and the second connecting piece which are connected with the elastic pieces in the middle can rotate at will, so that the extension direction of the connecting piece can be ensured to be consistent with the stress direction of the two elastic pieces on the connecting piece, and the friction between the elastic pieces and the connecting piece is avoided; the service life of the elastic piece is prolonged; and meanwhile, the two connecting pieces can rotate freely, so that no shearing force exists between the two connecting pieces, and the connecting pieces are prevented from being damaged due to the shearing force.
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