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发明公开
CN102230387A 活动式防倒架护顶装置及端头支架 无效 - 驳回

活动式防倒架护顶装置及端头支架
摘要：
本发明公开了一种活动式防倒架护顶装置及端头支架，包括护顶板，护顶板的后端与液压支架的顶梁或掩护梁的一侧铰接，护顶板的前端与支撑板铰接，护顶板与顶梁或掩护梁之间连接有千斤顶，护顶板与支撑板之间连接有支撑杆，护顶板、支撑板与支撑杆形成三角形结构。工作状态可上下活动，支架下井时可整体垂下便于左右架并架整体下井，结构简单、使用方便、工作效率高。
摘要（英）：

The invention discloses a movable anti-falling rack canopy guard device and a tip bracket, and the movable anti-falling rack canopy guard device comprises a canopy guard plate, wherein the rear end of the canopy guard plate is hinged with one side of the top beam or the covering beam of a hydraulic bracket; the front end of the canopy guard plate is hinged with a support plate; a jack is connected between the canopy guard plate and the top beam or the covering beam; a strut bar is connected between the canopy guard plate and the support plate; and the canopy guard plate, the support plate and the strut bar form a triangular structure. When in working, the movable anti-falling rack canopy guard device and the tip bracket can move up and down; and when the bracket is descended into the well, the bracket can droops integrally, which is convenient for a left rack and a right rack to be combined and descended into the well integrally. The movable anti-falling rack canopy guard device and the tip bracket have the advantages of simple structure and high working efficiency and are convenient to use.

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