The utility model discloses an intelligent anti myopia health learning table and adjusting device, which is composed of a spring rod joints, pressure spring rod and a support frame connecting head and a locking pin; the spring rod connector is composed of a screw rod, the spring rod on the connecting part; the spring rod connecting part a spring is arranged on the connecting rod jack; the pressure spring rod by the connecting head and a lower connecting head and a spring rod; the upper connecting head is provided with a central shaft hole; the lower connecting head is provided with a center shaft hole; the support frame is connected on the head is provided with a spring rod connection jack; the spring on the connecting rod is connected with the central shaft hole hole alignment; the lower center shaft hole and the spring rod connector alignment connection; the intelligent anti myopia health learning table and adjusting device is the use of pneumatic spring elastic rod The connection supporting performance is an important connecting support component of an intelligent myopia prevention health learning table.
【技术实现步骤摘要】
一种智能防近视健康学习桌的起降调节装置
:本技术涉及青少年视力健康领域,具体来说是一种智能防近视健康学习桌的起降调节装置。
技术介绍
:眼球在调节静止的状态下,来自5米以外的平等光线经过眼的屈光后,焦点恰好落在视网膜上,能形成清晰的像,具有这种屈光状态的眼称为正视眼;其焦点落在视网膜前,不能准确地在视网膜上形成清晰的像,称为轴性近视;对来自近处目标的分散光线却具有高度适应能力,只要目标向眼前移动到一定距离,就能获得清晰的视力;临床表现为远视力下降,近视力正常;高度近视者常出现玻璃体液化、混浊,并发白内障而自觉眼前黑影飘动或视力下降;低、中度者眼底一般无变化或呈豹纹状眼底,近视孤形斑,高度近视者视神经乳头颞侧或周围环状脉络膜萎缩,黄斑变性、出血、富克斯(Fuchs)斑,后巩膜葡萄肿,并易发生视网膜裂孔和视网膜脱离;高度近视者因眼轴处长而稍突出,同时伴前房较深和瞳孔较大,且对光反向略迟钝;用凹球面透镜能增进视力。我国是近视眼的高发地区,青少年近视眼的患病率逐年升高,并有向低龄化、高度数发展的趋势,中小学生视力下降是当前影响青少年健康的一个重要问题,关系到整个民族健康素 ...
【技术保护点】
一种智能防近视健康学习桌的起降调节装置,它由弹簧杆连接头(1)、气压弹簧杆(2)、支撑架下连接头(3)、锁紧销钉(4)组成;其特征是弹簧杆连接头(1)通过锁紧销钉(4)安装在气压弹簧杆(2)上部;支撑架下连接头(3)通过锁紧销钉(4)安装在气压弹簧杆(2)下部;所述弹簧杆连接头(1)由丝杆(1‑1)、弹簧杆上连接部(1‑2)组成;所述弹簧杆上连接部(1‑2)上设有弹簧杆上连接插孔(1‑2‑1);所述气压弹簧杆(2)由上连接头(2‑1)、下连接头(2‑2)、弹簧杆(2‑3)组成;所述上连接头(2‑1)上设有上中心轴孔(2‑1‑1);所述下连接头(2‑2)上设有下中心轴孔(2‑ ...
【技术特征摘要】
1.一种智能防近视健康学习桌的起降调节装置,它由弹簧杆连接头(1)、气压弹簧杆(2)、支撑架下连接头(3)、锁紧销钉(4)组成;其特征是弹簧杆连接头(1)通过锁紧销钉(4)安装在气压弹簧杆(2)上部;支撑架下连接头(3)通过锁紧销钉(4)安装在气压弹簧杆(2)下部;所述弹簧杆连接头(1)由丝杆(1-1)、弹簧杆上连接部(1-2)组成;所述弹簧杆上连接部(1-2)上设有弹簧杆上连接插孔(1-2-1...
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