Hand folding mechanism and three-fold handle using the folding mechanism and cart thereof
一种折叠机构、手把的技术,应用在手推车、机动车、运输和包装等方向,能够解决横向折叠机构组件数量多、组装需时长、结构复杂等问题,达到整体结构稳定性和安全性强、方便组装、减小手把体积的效果
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[0047] Such as Figure 1-20 As shown, it is a handle folding mechanism of the present invention, which includes an intermediate assembly 1 and a pair of connecting assemblies 2 respectively hinged at both ends of the intermediate assembly 1. The button 14 and the unlocking sheet 13 are formed.
[0048] The tubular shell 11 is formed by butting an upper shell 17 and a lower shell 18 . The rear portion of the briquetting block 12 extends into it through the front wall of the housing 11. Specifically, an elongated notch is provided on the bottom edge of the front wall of the upper casing 17 and the edge of the front wall of the lower casing 18. After the two notches are combined, A mounting hole for the briquetting block is formed, and upper and / or lower surfaces of the rear portion of the briquetting block 12 are respectively provided with upper and lower corresponding transverse limit ribs 19, and on the inner top surface and the lower surface of the upper housing 17 The inne...
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