Dropping prevention mechanism of device for lifting four-corner drill tower from ground
A technology of anti-fall and drilling tower, applied in elevators, transportation and packaging, etc., can solve problems such as hidden safety hazards, fall casualties, and heavy objects falling at overspeed, and achieve the effect of preventing falls.
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[0014] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0015] As shown in the accompanying drawings, an anti-fall mechanism for a four-corner drilling tower ground lifting device includes a column 1, a lifting bracket 6, an anti-fall rack 2, a trailer 3, a guide wheel 4, a traction rope 5, a traction pin 7, Pawl 8, fixed pin 9, spring 10 and bolt 11, the side of the column 1 is provided with openings, the teeth of the anti-fall rack 2 are zigzag, the working surface is a right-angled side or a hypotenuse close to a right-angled side, and the other side is greater than 90° The anti-falling rack 2 is installed on the side of the column 1, the teeth of the anti-falling rack 2 are inclined upward, the trailer 3 is movably installed in the column 1, the front end of the trailer 3 is rotated with a guide wheel...
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