Opening-and-closing-degree-adjustable grappler

Abstract

The invention discloses an opening-and-closing-degree-adjustable grappler. The grappler comprises a hook body, a grappler body, an adjusting mechanism, a pedal and a top buckle, wherein an antiskid layer is arranged at the front end of the hook body; a toothed bar is arranged at the tail end of the hook body; the tail end of the hook body is connected with one end of the grappler body through the adjusting mechanism; the pedal and the top buckle are fixedly arranged at the other end of the grappler body; an antiskid layer is arranged on the top buckle; the pedal is provided with a buckle belt; the adjusting mechanism comprises a connecting body, an adjusting knob, a rack and a gear; the rack and the gear are arranged at the tail end of the grappler body; the gear is arranged in the connecting body; the gear is adapted to the rack; the adjusting knob is coaxially connected with the gear. The opening-and-closing-degree-adjustable grappler is safe, reliable, convenient and flexible in use, the hook body and the grappler body can be quickly adjusted to form the width of a buckling periphery, the grappler is simple in operation and suitable for operation by one hand of a worker, the danger that the worker departs a pole when the worker climbs the pole can be effectively prevented due to the fact that an anti-rotation clamping pin is additionally arranged, and the working safety of the worker who climbs the pole is greatly guaranteed.

Description

technical field [0001] The invention relates to a climbing tool used for pole climbing operations, in particular to a foot buckle with adjustable opening and closing degree. Background technique [0002] At present, pole climbing operations are inevitable in the installation, overhaul, maintenance, and missing operations of power (overhead) lines. The most commonly used tools for pole climbing operations are foot buckles. [0003] The hook body and the button body of the existing foot buckle mostly adopt a fixed design, such as the main body support of the foot buckle in patent application 200720028107. The pedals are fixedly connected. Adopting the fixed pole climbing foot buckle, it is impossible to adjust the clamping width between the hook body and the button body to match the diameter and width of the top of the pole when the pole top is used. Because the pole is divided into big head and small head, the thickness difference of the shaft is relatively large (such as a...

AI Technical Summary

Problems solved by technology

But the defect of this arrangement is that, when needing to adjust the size of the card enclosure, at first the locator will be pulled out from the positioning hole, the movable hook and the buckle body will be adjusted to a suitable card enclosure, and then the first positioning hole and the second positioning hole will be adjusted. Only when the positioning holes are adjusted to correspond to each other can the locator be fixed. If the locator uses an adjusting screw and a locking nut, the adjusting screw and locking nut must be unscrewed first, and then tightened after adjusting the clamping circumference. Of course, safety is considered The degree of fastening requires the use of a wrench. This operation is time-consuming and laborious, and must be performed with both hands. For example, the operation on a pole is extremely dangerous, so most workers are reluctant to use it.

If the retractable bayonet is used as the positioner, it is also necessary to match the first positioning hole with the second positioning hole. This operation is also time-consuming and laborious, especially when adjusting on the pole, both hands must be environmentally friendly. And one foot is suspended in the air, which is extremely unsafe, and ordinary staff are unwilling to use it

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