The invention discloses a guide rail type lifting platform anti-falling device which comprises a base, side plates are fixedly connected to the two sides of the top of the base, the tops of the two side plates are fixedly connected with the same top plate, a lifting table is arranged in the middle of the top of the base, and an anti-falling mechanism is arranged at the top of the lifting table. The anti-falling mechanism comprises first U-shaped frames fixedly connected to the two ends of the top of the lifting table, and limiting rods are fixedly connected to the positions, close to the two ends, of the tops of the first U-shaped frames. When a hydraulic oil cylinder loses efficacy or a chain is broken, a lifting table and components on the lifting table are in a weightless state, a second U-shaped frame descends under the action of a first spring, two clamping blocks are far away from each other under the action of a sliding rod and an inclined groove hole, the clamping blocks on the two sides are engaged with inclined racks at side plates at the moment, and therefore the lifting table and the components on the lifting table are in the weightless state. The lifting platform is prevented from doing free falling motion under the action of gravity to cause material damage and personnel casualties, and economic losses of enterprises are reduced.
本发明公开了一种导轨式升降平台防坠落装置,包括底座,所述底座顶部两侧均固定连接有侧板,两个所述侧板顶部固定连接有同一个顶板,所述底座顶部中间位置设置有升降台,所述升降台顶部设置有防坠机构,所述防坠机构包括有固定连接在升降台顶部两端的第一U型架,所述第一U型架顶部靠近两端位置均固定连接有限位杆。本发明当液压油缸失效或者链条断裂的时候,这时升降台以及上面的部件均处于失重的状态,在第一弹簧的作用下,使得第二U型架下降,通过滑动杆和斜槽孔的作用,使得两个卡块相互远离,这时两侧的卡块将于侧板处的斜齿条啮合,防止升降台在重力的作用下,做自由落体的运动,造成物料损坏和人员的伤亡,减小了企业的经济损失。
Guide rail type lifting platform anti-falling device
一种导轨式升降平台防坠落装置
2023-10-31
Patent
Electronic Resource
Chinese
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
Guide rail type lifting freight elevator with anti-falling structure
European Patent Office | 2020
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