Fall prevention devices for industrial lifts

The invention that allows you to prevent the platform will fall even relates to a fall protection device, relatively driving distance is short and is applicable to industrial lift transport only pure cargo, not people lift system malfunction or lifting wire rope breaks for relates to the lift fall protection apparatus for the chain to be securely fixed to the shaft of the ceiling portion and the bottom portion is provided, doedoe the fall protection apparatus to move along the chain provided on the outside of the platform, it is actuated by mechanical means at elevated by which the pawl always maintain the engaged state and the chain and, at the time of falling off the engagement and stop pumsoe the chain by a solenoid, and reading the rotation of the chain gear via the speed sensor faster than the average speed rotation speed is detected, If by the off power to the solenoid so that the pawl is engaged with the chain immediately There is a feature to prevent crash when you lift the lift. The invention has the main body 10 formed of a double row significantly doedoe a bar, plate 11, a pair consisting of a four-part combined in the form facing each other, and one side vertical to the chain guide guides (12, 13) Wow; Doedoe the solenoid 21 for a new load by the electrical signal to the upper side of the plate 11 is installed, the rod end of the solenoid 21, is coupled a pawl 22 provided with rotatable form, detent 22, the operating portion 20 is configured such that the top of the spring 23 are coupled or bonded separately from the pawl 22, the chain 40 according to the operation of the solenoid 21 of the; Doedoe provided at the lower side of the plate 11, a chain 40, coupled with the rotating chain gear 31 is installed and the rotational speed for speed to detect in real time of the chain gear 31 sensor 32 detection part 30 consisting of a; Pass between the chain guide guides (12, 13) has the approximate configuration consisting of a chain 40 which is fixed to the ceiling portion and the bottom portion of the hoistway (1). The present invention constructed as described above is that the fall protection apparatus to move along the chain to be securely fixed to the shaft of the ceiling portion and the bottom portion doedoe provided outside the platform, at the time of rise always in the chain pawl actuated by mechanical means by rising in a combined form, even if lift system when a malfunction or the lifting wire rope is broken, for the pawl is engaged with the chain it has the effect that the platform does not crash. Furthermore, when at the time of descent of the lift the detent by the solenoid release the engagement between the chain and a chain and the rotation of the chain gear via the speed sensor reads the average speed in the fast rotational speed is detected as compared to rotation in engagement of the solenoid power block to the effect that can be dealt with immediately, even damaged or malfunction of the lift wire rope arising from falling by a pawl coupled with the solenoid to engage with the chain. In addition, no possible simply to industrial installed in existing lifts applies a bar, changing operating portion of the lift installation or modification work, the shaft of the ceiling and install the connecting chain, a bottom, prevent falls on the side of the platform to engage with the chain device by installing a useful effect in the application of the conventional lift it is not provided with a safety device.