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在1983年前后,各厂家生产的300-400毫米的台风扇,其主要元件由电机、支柱、底座及底板等多种部件扣接而成。支柱与装饰面板的连接,利用支柱下端自身备有塑料螺孔三个,深度15毫米左右,鼎立成三点,均采用三颗圆头开口螺丝,则螺丝规格φ4毫米,长度20毫米,加平垫圈,且通过底板,底座用一字形改刀,把螺丝旋入支柱中,扣接成整体。塑料支柱螺孔折断的原因分析:由于用户的使用,处于长期搬动,有时与它物碰撞,偶尔跌落触地;塑料材质脆弱,强度不高;在检修时把螺丝旋入
Before and after 1983, the 300-400 mm Taiwan fans produced by various manufacturers were mainly connected by a variety of components such as motors, pillars, bases and backplanes. Pillar and decorative panel connection, the use of the lower end of the pillar itself with three plastic screw holes, the depth of about 15 mm, the tripod into three, are used three round head open the screw, the screw size φ4 mm, length 20 mm, plus flat washers , And through the floor, the base with a zigzag knife, screw the screw into the pillar, buckle into the whole. Plastic pillars screw hole breakage analysis: due to the user’s use, in the long-term movement, sometimes with its collision, and occasionally fall touch; plastic material is weak, the strength is not high; screw in the repair screw