The invention discloses an obstacle avoidance universal wheel for a wheelchair, The wheel comprises a connecting plate, and a protective plate is arranged on the inner side of the top end of the connecting plate; a telescopic spring is mounted between the protective plate and the inner wall of the top end of the connecting plate; rollers are arranged on the inner side of the connecting plate; a gap is formed between the rollers and the protective plate; the surface of the protection plate is of an arc-shaped structure, a groove is formed in the surface of the protection plate, a hook is arranged on the inner side of the groove, the bottom end of a telescopic spring is wound on the inner side of the hook in a bent mode, connecting threads are formed in the surface of the bottom of the hook,and the hook is fixedly connected with the inner wall of the groove through the connecting threads. By means of the designed protective plate, when the shock absorption amplitude is too large, the wheel and the connecting plate can be separated, damage caused by collision of the wheel and the connecting plate is avoided, the designed hook can be replaced in long-time use, the situation that the protection plate cannot conduct protection due to long-time abrasion is avoided, and normal use is not affected.
本发明公开了一种功勋轮椅避障万向轮,包括连接板,所述连接板的顶端内侧设置有防护板,所述防护板与连接板的顶端内壁之间安装有伸缩弹簧,所述连接板的内侧设置有滚轮,所述滚轮与防护板之间存在间距,所述防护板的表面呈弧形结构,所述防护板的表面开设有凹槽,所述凹槽的内侧设置有挂钩,所述伸缩弹簧的底端通过弯折缠绕在挂钩的内侧,所述挂钩的底部表面开设有连接螺纹,所述挂钩通过连接螺纹与凹槽的内壁固定连接;通过设计的防护板,可以在避震幅度过大时,将车轮和连接板进行分隔,避免两者碰撞造成的损伤,设计的挂钩,可以在长时间使用中,进行更换,避免防护板因长期磨损而无法进行防护,保证正常使用不受影响。
Obstacle avoidance universal wheel for a wheelchair
一种功勋轮椅避障万向轮
2020-05-19
Patent
Elektronische Ressource
Chinesisch
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