The utility model relates to a built-in locking mechanism of a walking stick, which belongs to the field of sports goods. The utility model is characterized in that a cylinder at one end of a cylindrical pipe seat has a circular convex and a circular stop, a positioning expansion groove is arranged in the conical holes at the upper end of the expansion sleeve, a circular groove in the inner hole at the lower end of the expansion sleeve is engaged with a circular convex on the cylinder of the pipe seat, and the pin shaft is a screw shaft with a conical body. Rotating the pipe seat, the screw part of the pin shaft is screwed into the nut of the pipe seat, and the pin shaft stroke is limited by the positioning pin. The mechanism uses the screw transmission principle to change the rotation motion of the pipe seat into the linear motion of the pin shaft, and realizes the expansion and relaxation of the expansion sleeve by changing the force on the conical hole of the expansion sleeve after the movement of the pin shaft cone. The principle of force screw self-locking completes the self-locking after the pin shaft and the pipe seat screw are tightened. The unidirectional locking of multi-section walking stick is completed by using the reverse force locking technology of the expansion sleeve. The built-in unidirectional locking mechanism of the walking stick has the advantages of simple structure, convenient installation, safe operation, low cost and convenient maintenance.
【技术实现步骤摘要】
手杖内置单向锁紧机构
本技术属于体育用品领域,具体地说是一种手杖内置单向锁紧机构。
技术介绍
手杖是一种行走辅助支撑工具,主要用于户外体育运动的登山、滑雪和徒步,同时也是老年人和腿部残疾人行走的辅助支撑工具,现有的手杖分为单节式、两节式、三节式和四节式,杆体使用金属或碳纤维制作,其优点是强度高、重量轻、使用方便,缺点是:单节式手杖尺寸长,携带不便,多节式手杖的内置锁紧机构装配复杂、成本高、锁紧力不足、维修困难。
技术实现思路
为了克服现有技术的不足,本技术提供一种手杖内置单向锁紧机构,它运用螺旋传动原理把管座的旋转运动转变为销轴的直线运动,通过胀紧套圆锥孔大小的变化实现胀紧套的膨胀和放松,利用传力螺旋自锁原理完成了销轴和管座螺纹旋紧后的自锁,采用胀紧套反向受力锁紧技术完成了多节手杖的单向锁紧,使该手杖内置单向锁紧机构具有:结构简单,安装方便、工作安全、成本低廉、维修方便的优点。本技术解决其技术问题所采用的技术方案是:一种手杖内置单向锁紧机构,包括销轴、胀紧套和管座,其特征在于,圆柱形管座一端的圆柱上有圆环形凸起和圆环形止口,圆环形止口到另一端的外圆表面有三角形凹槽,管座内孔带螺纹,胀紧套上端为圆锥孔均布有定位扩张槽,胀紧套下端内孔有圆环形凹槽与管座圆柱表面的圆环形凸起啮合,销轴上部为圆锥体均布有定位块,销轴的中部是螺杆轴下部为光轴有圆孔,销轴装入胀紧套和管座的啮合体后,转动管座将销轴螺杆旋入管座的螺母中旋出光轴圆孔插入定位销钉并固定。本技术还可通过如下措施来实现:胀紧套上端的定位扩张槽与销轴上部的定位块相互对应都设置为三个。定位块的厚度小于胀紧套定位扩张槽的宽 ...
【技术保护点】
1.一种手杖内置单向锁紧机构,包括锁轴、胀紧套和管座,其特征在于,圆柱形管座一端的圆柱上有圆环形凸起和圆环形止口,圆环形止口到另一端的外圆表面有三角形凹槽,管座内孔带螺纹, 胀紧套上端圆锥形孔均布有定位扩张槽,胀紧套下端内孔有圆环形凹槽与管座圆柱上的圆环形凸起啮合,销轴的上部为圆锥体均布有定位块,销轴的中部是螺杆轴下部为光轴带圆孔,销轴装入胀紧套和管座的啮合体后,转动管座将销轴螺杆旋入管座的螺母中旋出光轴圆孔插入定位销钉并固定。
【技术特征摘要】
1.一种手杖内置单向锁紧机构,包括锁轴、胀紧套和管座,其特征在于,圆柱形管座一端的圆柱上有圆环形凸起和圆环形止口,圆环形止口到另一端的外圆表面有三角形凹槽,管座内孔带螺纹,胀紧套上端圆锥形孔均布有定位扩张槽,胀紧套下端内孔有圆环形凹槽与管座圆柱上的圆环形凸起啮合,销轴的上部为圆锥体均布有定位块,销轴的中部是螺杆轴下部为光轴带圆孔,销轴装入胀紧套和管座的啮合体后...
【专利技术属性】
技术研发人员:杨立强,
申请(专利权)人:山东鲁滨逊体育用品有限公司,
类型:新型
国别省市:山东,37
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