Both working states of the speed differential anti fall device must be ensured to be normal

A complete differential anti fall device must ensure the normal operation of two working states. So, which two working states are they?

Firstly, the semi tension state of the speed differential anti fall device refers to the gradual extraction of the steel wire rope from the casing under a uniform and slow external force until it reaches its maximum length. After we release the external force, will the steel wire rope automatically retract back into the casing? This belongs to a normal semi tense state of the differential anti fall device.

Secondly, the locking state only occurs when the operator suddenly falls, that is, when the steel wire rope suddenly feels the acceleration change, the pawl is thrown out under the effect of the acceleration centrifugal force, and then instantly meshes with the ratchet, and the falling process is abruptly stopped in a very short time.

When we test whether the speed differential anti fall device is qualified, we mainly check whether these two working states are running normally. Any problem in either state will mean that the speed differential anti fall device is prohibited from further use. Therefore, everyone must do these two aspects of testing before using the speed differential anti fall device.