rachet wheel anchored device under the tunnel
release time:2020-07-01    auhor:    source:    click:300   

the anchor device under the tunnel is a kind of tension automatic compensation device. installed at both ends of the anchor segment, the tension in the compensation lead is kept constant under the weight of the hanging weight. the wheel teeth on the edge of the ratchet can break the braking effect, not cause the accident scope to expand, and easy to recover.

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