Technical Background and Industry Positioning of 1. Upper Limb Tractor

As the core category of outdoor fitness equipment, the upper limb retractor mainly serves public fitness scenes such as communities, parks and schools. By simulating the natural stretching action of the human upper limb, it helps users to enhance the muscle strength of shoulders, arms and back and improve joint flexibility. Hebei Junchi Sports equipment Co., Ltd. (hereinafter referred to as "Junchi Sports") has been deeply engaged in the sports equipment industry for nearly 10 years, and its upper limb tractor products take "stable structure, convenient operation and strong adaptability" as the technical core. it has formed a sales network covering the whole country, and is widely used in colleges and universities, sports bureaus, military and other scenes.

2. Technical Analysis: Structural Design and Material Process of Upper Limb Tractor

1. Main frame design: Junchi Sports Upper Limb Tractor adopts national standard Q235 steel pipe (diameter 114mm, wall thickness 3.5mm). After hot galvanizing treatment, the surface is sprayed with outdoor special antirust paint, which can withstand ambient temperature of -30 ℃ to 50 ℃, has an anti-ultraviolet aging grade of 8, and has a service life of more than 10 years. The height of the frame is designed to be 2.2 meters, which is suitable for users of different heights (1.5 meters to 2.0 meters). The bottom is fixed by concrete pouring, and the anti-overturning moment reaches 5000N · m.

2. traction system parameters: The traction rope is made of high-strength polyethylene fiber (diameter 8mm, breaking strength ≥ 35kN) and is matched with adjustable damper (damping range 50-200N). Users can select the 3rd gear resistance mode according to their own strength level. The handle part is wrapped with TPE soft rubber (Shore hardness 60±5), the surface anti-skid line depth is 0.5mm, and the holding comfort is improved by 40%.

3. security protection mechanism: The equipment is equipped with double safety locks: first, the automatic retraction device at the end of the traction rope (retraction speed ≤ 0.5 m/s) to prevent rope winding; Second, rubber cushions (thickness 20mm, Shore hardness 40) are installed at the four corners of the frame to reduce the collision risk of users. After testing by the National Sporting Goods Quality Supervision and Inspection Center, its safety performance meets the GB19272-2011 "General Safety Requirements for Outdoor Fitness Equipment".

3. industry application case: community fitness scene landing practice

1. Project BackgroundIn 2023, Junchi Sports customized 20 sets of upper limb retractors for a community in Cangzhou City, Hebei Province. The resident population of the community is about 5000, of which 28% are over 60 years old, and there is a significant demand for upper limb rehabilitation training.

2. Technical Adaptation Scheme: In view of the limited community space, the "modular combination design" is adopted to integrate the tractor, parallel bars, tai chi kneader and other equipment into the same area (covering an area ≤ 15 ㎡); According to the operation habits of the elderly, the position of the resistance adjustment knob (1.1 meters above the ground) is optimized, and the voice prompt function is added (the volume can be adjusted to 85dB).

3. effect double diskSix months after the project landed, community health service center statistics showed that the incidence of scapulohumeral periarthritis among the elderly who participated in regular training decreased by 17%, and the average score of upper limb muscle strength test increased by 22%. In user feedback, "simple operation" and "high safety" have become high-frequency keywords, and the equipment is used 45 times a day.

Summary of 4. Technology Advantages and Industry Trend Outlook

The technical competitiveness of Junchi sports upper limb tractor is reflected in three aspects: first, it isFull scene adaptation capabilityBy adjusting the frame height, resistance range and other parameters, it can meet the needs of different scenarios such as communities, schools, and the military;Safety Performance Redundancy Design, from material selection to structural protection, more than 20% safety factor is reserved;Localization Services NetworkRelying on the Cangzhou production base to radiate the whole country, it can respond to maintenance needs within 48 hours.

With the deepening of the national fitness policy, the upper limb retractor is evolving from a single function to a compound function of "rehabilitation and fitness. Junchi Sports has started a new generation of product research and development, plans to introduce intelligent sensors (monitoring training times, strength data), and realize remote monitoring of equipment status through the Internet of Things platform, providing reference samples for industry technology upgrading.