The invention discloses an anti-falling device for an elevator. The anti-falling device for the elevator comprises a base, a first anti-falling mechanism, a cover frame, a second anti-falling mechanism and winding drums; a first belt wheel is connected to a second belt wheel through a transmission belt; a transmission shaft penetrates through the second anti-falling mechanism; the winding drums are connected to the front end and the rear end of the transmission shaft; a lifting rope is wound around the outer side of each winding drum; the lifting ropes bypass fixed pulleys to be connected withtension sensors; the tension sensors are fixed to the left side and the right side of the upper end face of a bearing plate through fasteners; and the tension sensors are located on the outer sides of the limiting plates. According to the anti-falling device for the elevator, after the lifting ropes lift the bearing plate, the tension sensors start to work; when the lifting rope is accidentally broken, the tension value detected by the corresponding tension sensor is zero; and at the moment, a movable block moves under the extension effect of a first piston rod, and a second clamping block moves along with the movable block and are connected to a first clamping block in a clamped mode, so that the bearing plate can be conveniently fixed in time, and the inclining or falling of the bearingplate can be avoided.
本发明公开了一种用于升降机的防坠落装置,包括底座、第一防坠机构、罩框、第二防坠机构和收卷筒,所述第一带轮通过传动皮带与第二带轮相连接,所述第二防坠机构上贯穿有传动轴,所述收卷筒与传动轴的前后两端相连接,所述收卷筒的外侧绕制有吊绳,且吊绳绕过定滑轮与拉力传感器相连接,所述拉力传感器通过紧固件固定在承载板上端面的左右两侧,且拉力传感器位于限位板的外侧。该用于升降机的防坠落装置,吊绳吊起承载板后,拉力传感器开始工作,当吊绳意外断裂的时,对应的拉力传感器检测到的拉力值为零,此时移动块在第一活塞杆的伸长作用下移动,第二卡块随之移动并卡合连接在第一卡块上,方便及时固定住承载板,防止承载板倾斜或坠落。
Anti-falling device for elevator
一种用于升降机的防坠落装置
2020-12-15
Patent
Elektronische Ressource
Chinesisch
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 |