CN2512758Y - Rope breaking protector for lift - Google Patents

Abstract

The utility model provides a rope breaking protector for lift which comprises a fall preventing device that is arranged at the lift and is formed by a box body, a fall preventing wire cable, a teeterboard in the box body, a pulley, a shrapnel, an engrave groove and an engrave block. The utility model is characterized in that the fall preventing device is provided with a high power braking machine which is formed by a fall preventing rope guiding wheel and a high power tie rod driven with an engrave block and fixes the two ends of the fall preventing rope. The utility model aims at resolving the problem that the suspended substance does not fall when the main suspended wire cable is disconnected with rapid braking. The sliding distance of the suspended substance is far less than the permitted sliding distance by country. Besides, the braking machine effectively avoids inefficient abrasion of the fall preventing rope and fall preventing function can be truly realized when the main stringer is disconnected and the utility model has low-rise requirement of installing precision and strong adaptability.

Description

The gig rope broken protector

The utility model relates to a kind of gig rope broken protector, especially a kind of device that does not fall behind the disconnected rope of gig of protecting.

Be widely used in the gig of worker, ore deposit enterprise and construction trade at present, often pull other object, cause the disconnected rope of crane rope of gig, cause that the lifting thing falls and pounds and hurt sb.'s feelings or the accident of thing because of overload or steel cable burr, twisted rope or extension.For preventing that disconnected rope back lifting thing from not falling; I have applied for that to Patent Office of the People's Republic of China name is called " gig fall-preventing protection device " on May 1st 8,2000; application number is the utility model patent of 00223064.X; it is on the gig hanging basket casing to be housed; casing is provided with clamping plate; one end of clamping plate is provided with pulley and shell fragment, and the other end is provided with the contract piece that matches with contract groove on the casing.Though it can separate the problem that hanging basket does not fall when making a decision rope, it is too high to exist setting accuracy to require in actual applications, and therefore problems such as retro-speed deficiency, still need to do further improvement.

The purpose of this utility model is to overcome the deficiency of prior art, provides a kind of braking quick, reliable, the gig rope broken protector that setting accuracy is low.

The utility model is realized by following technical proposal: it comprise be loaded on the gig by casing and anti-fall steel cable and be located at the anti-fall device that seesaw, pulley, shell fragment, contract groove, contract piece in the casing are constituted, it is characterized in that on anti-fall device, being provided with by anti-fall rope track adjusting wheel and with contract piece interlock and fix the heavy braking device that powerful pull bar constituted of anti-fall rope two-end-point simultaneously.Powerful pull bar one end in the described heavy braking device is arranged on the axle that fixedly the contract piece is used, and perhaps constitutes one with the contract piece, so that move up and down with the contract piece; The other end of powerful pull bar is being fixed two end points of anti-fall rope respectively, wherein an end points of anti-fall rope directly is fixed on the powerful pull bar, another end points is walked around upper and lower locating wheel and track adjusting wheel and is connected with spring on being suspended from powerful pull bar, so that gig master lifting rope just often, can make anti-fall rope moving around each locating point up and down with main lifting rope reposefully; And after gig master lifting rope disconnects, anti-fall rope firmly is stuck in the contract groove and the lifting thing is fallen.Anti-fall rope track adjusting wheel in the described heavy braking device is made of the leading sheave of being located at the hanging basket top and bottom respectively, and upper and lower leading sheave is for shifting to install, so that hanging basket is in normal lifting process, make the anti-fall steel cable and the contract groove keeping parallelism that place in the contract groove, effectively prevent the non-brake wear of this steel cable, increase the length of the anti-fall steel cable of clamping simultaneously, help braking.Anti-fall rope in the described heavy braking device is fixed by the upper and lower location pulley of being located at gig top and bottom respectively, so that in fixing anti-fall steel cable, makes it to move between the pulley of upper and lower location.

The utility model compared with prior art has following advantage and effect: owing to be provided with the heavy braking device on anti-fall device; the lifting thing did not fall when effectively the protection master hung the steel cable disconnection; and braking is quick; lifting thing distance of glide is well below the distance of the permission downslide of national regulation; in addition this drg is provided with the invalid wearing and tearing of effectively having avoided anti-fall rope; in case main lifting rope can really play the effect of fall arrest when disconnecting; and setting accuracy is less demanding; comformability is stronger; therefore, be a kind of comparatively desirable gig fall-preventing protection device.

Fig. 1 is the structural representation of the utility model.

Below in conjunction with accompanying drawing the utility model is described further, is not limited in this but hold within the utility model.

Among the figure, 1 hangs steel cable for the gig master, it links to each other with hoisting machine, 2 is pulley, be installed on seesaw 4 one ends in the anti-fall casing 3 by axle 21, anti-fall casing 3 is fixed on gig hanging basket upper end, so that hanging steel cable 1 by the master under hoisting machine drives makes on the hanging basket, move down, the middle part of seesaw 4 is hinged on the casing 3 by hinge 41, and can be on hinge 41, under lift up, the other end of seesaw is fixed on the contract piece axle 71,5 is shell fragment, be arranged at seesaw 4 bottoms, 6 is the shell fragment set screw, 7 is the contract piece, link to each other with seesaw 4 one ends by contract piece axle 71, on making it with lifting up of seesaw 4, move down, this contract piece 7 is installed in the contract groove 72 on the casing 3 simultaneously, 8 is powerful pull bar, the one end is fixed on the contract piece axle 71, and the other end links to each other with anti-fall rope 9 one ends, and the other end of anti-fall rope 9 is walked around going up of gig top and located pulley 10, the last leading sheave 11 at casing top, contract groove 72, the following leading sheave 12 of bottom half, behind the following location pulley 13 of gig bottom, link to each other with the spring 81 on being suspended from powerful pull bar 8, wherein go up, following leading sheave 11 is advisable with the contract groove is parallel with 12 the anti-fall steel cable that should make in the contract groove that shifts to install.Main hang steel cable 1 just often, drive on seesaw 4 left ends and move, seesaw 4 right-hand members under hinge-point 41 effects to moving down, and press the shell fragment 5 of its underpart, and simultaneously contract piece 7 is moved down, reserve the space on the contract piece groove 72, anti-fall rope 9 is moved freely in contract piece groove 72, guarantee normal the lifting or landing.When main lifting rope 1 disconnects suddenly, pulley 2 together drops together with seesaw 4 left ends, under shell fragment 5 effects, seesaw 4 right-hand members are moved on hinge-point 41, drive simultaneously on the contract piece 7 and move, anti-fall ran 91 in the contract piece groove 72 was tightened in moment, when hanging basket drive casing 3 continues to move down, captured anti-fall steel cable 9 upper ends will be carried on the powerful pull bar 8 by force, simultaneously contract piece 7 also with on move, firmly block anti-fall steel cable 9, make hanging basket steadily be parked in the original place, said process is only used the 1-3 time in second from start to end, and the hanging basket falling distance only is 3-20cm.

Claims (4)

1; a kind of gig rope broken protector; it comprise be loaded on the gig by casing and anti-fall steel cable and be located at the anti-fall device that seesaw, pulley, shell fragment, contract groove, contract piece in the casing are constituted, it is characterized in that on anti-fall device, being provided with by anti-fall rope track adjusting wheel and with contract piece interlock and fix the heavy braking device that powerful pull bar constituted of anti-fall rope two-end-point simultaneously.

2; fender guard according to claim 1; it is characterized in that powerful pull bar one end in the described heavy braking device is arranged on the axle that fixedly the contract piece is used; perhaps constitute one with the contract piece; the other end is being fixed two end points of anti-fall rope respectively; wherein an end points of anti-fall rope directly is fixed on the powerful pull bar, and another end points is walked around upper and lower locating wheel and track adjusting wheel and is connected with spring on being suspended from powerful pull bar.

3, fender guard according to claim 1 it is characterized in that the anti-fall rope track adjusting wheel in the described heavy braking device is made of the leading sheave of being located at the hanging basket top and bottom respectively, and upper and lower leading sheave is for shifting to install.

4, fender guard according to claim 1 is characterized in that the anti-fall rope in the described heavy braking device is fixed by the upper and lower location pulley of being located at gig top and bottom respectively.