CN2618982Y

CN2618982Y - Anti-drop device for attached lift scaffold

Info

Publication number: CN2618982Y
Application number: CN 02246915
Authority: CN
Inventors: 黄巍; 黄振声
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-29
Filing date: 2002-07-29
Publication date: 2004-06-02
Anticipated expiration: 2012-07-29

Abstract

The utility model provides a new technique applied in modern high-rise buildings: 'HS-5000 style anti-dropping device' attached with the lifting scaffold, which mainly comprises four mail parts of an anti-dropping box body, a locking and unlocking mechanism, a load limiting device, and an overload and load-loss controller. The characteristics are that, the load limiting device comprises a load limiting device body in the middle of the box body, a load limiting spring, a spring combined pulling rod and a spring base, the locking and unlocking mechanism comprises a crimpling bock, a locking rod, an eccentric wheel accessory, a tight locking pulling spring, and an unlocking block arranged inside the empty cavity of the left side of the box body, the overload and load missing controller comprises a position limiting board arranged in the right cavity of the box body, and a position stick, a travel switch and a regulating calibration hand-setting switch arranged on the board, and a position limiting screw arranged on the spring base of the load limiting device. Because of the structure and the characteristics, when the pulling force on the load spring combined pulling rod of the load limiting device of the anti-dropping device is suddenly made to disappear when in work, the anti-dropping device can immediately attach to the lifting scaffold to be lock up on the position without falling down under the function of the load limiting device and the lock up mechanism in the moment when the scaffold is to drop.

Description

Anti-falling device of attached lifting scaffold

The utility model relates to a kind of modern high-rise building construction technique that is used for---the falling proof device of attached lift scaffold, especially a kind of " HS-5000 type anti-drop device " of Automatic Control.

Because this attached lift scaffold is a kind of combination shelf that is suspended on rich sky, if there is not the fall arrest measure, just in case power-lifter generation chain rupture, take off an ancient unit of weight etc. and lose when carrying fault, whole attached lift scaffold promptly can immediately fall from unsettled, leads to the major accident that frame is ruined personal injury.And existing be a kind of single lock function and product that can not automatic unlocking, so generally reflect undesirable.

The utility model discloses a kind of locking to society all can finish " HS-5000 type anti-drop device " automatically with release.As long as loading allowable and its specification of adhering lifting foot rest adapt, and the seat in the plane span is suitable, no matter is monolithic, segmented or monolithic hanger all can supporting uses.This anti-drop device in use loses when power-lifter generation chain rupture, unhook etc. and carries fault, the moment that attached lift scaffold will fall thereupon, on relevant position when anti-drop device can be locked in this with attached lift scaffold timely, effective and rapidly securely, and make equipment and personnel safe and sound.The fault of mechanism to be hoisted is got rid of to resume operation with the power hoisting mechanism just can be made lock-out state automatically terminate and drop into normal operation.Be provided with overload and lose set controller because of this anti-drop device in addition, super at power-lifter, lose under the situation of carrying power supply disconnected and make console picked up signal and corresponding disconnection general supply, thereby make effectively this equipment super, lose and carry a control difficult problem and solved reliably.

Below in conjunction with accompanying drawing specific embodiments is described in detail:

Fig. 1 is an overall structure schematic diagram of the present utility model, and wherein last figure is a sectional view, and figure below is attached view, mainly is made up of casing, load limiter, locking and release mechanism and overload, mistake set controller four major parts its overall structure of figure demonstration.The structure of its each one and composed as follows:

Casing: by top board (3), left plate (20)/forward and backward each 1, right plate (5)/forward and backward each 1, right end plate (6)/upper and lower each 1, first member plate (1) and be positioned at the composition such as limit for tonnage body (4) member of etc.ing at middle part.Usually adopt steel plate seam structure in the making, but also can adopt casting.

Load limiter: it is located at the middle part of body, is made up of limit for tonnage body (4), limit for tonnage spring (14), the combination of spring pull bar (13), spring pedestal (load-bearing self-unloading piece) objects such as (15).

Locking and release mechanism: it is located in the left chamber of body, by latch segment (19), eccentric wheel (18) camshaft (20), locking bar (22), locking extension spring (17) are separated lock dog (23), manual unlocking pull bar combination (16), composition such as positioning bolt (21) object of etc.ing on the spring pedestal (15).Latch segment is fixed by bolts on the left plate (2), and eccentric wheel matches with the camshaft that is installed on the left plate, and locking bar is the major axis of vertical hanging on spandrel girder.

Overload, mistake set controller: it is positioned at the right chamber of body, by limiting plate (7) be installed in limit stick (10), travel switch (8) on this plate, stop screw compositions such as (12) on adjustment toggle switch (11), pointer (9) and the load-bearing self-unloading piece (15), travel switch have lead to link to each other with the motor of power-lifter.

Fig. 2 is automatic locking of the present utility model and released state schematic diagram, and wherein left side figure is the locking state schematic diagram, and right figure is the unlocking condition schematic diagram.

Unlocking condition: the limit for tonnage spring assembly pull bar (13) that is meant this anti-drop device under the normal operation condition is subjected to the pulling force of power-lifter and limit for tonnage spring (14) is compressed, on the spring pedestal (15) separate lock dog (23) with on move, in its upper end process with the end pin jack-up of eccentric wheel (18), even eccentric wheel turns in the process of certain angle counterclockwise around eccentric shaft (20), a gap just appears between eccentric wheel working curved surface and the locking bar (22), do not have coupling mechanism force thereby make between the same locking bar of latch segment (19) (22), so anti-drop device can be free along on the locking bar, the state of following operation.

Locking state: it appears in the attached lift scaffold course of work, chain rupture appears suddenly in power-lifter, the moment of faults such as unhook, pulling force on the limit for tonnage spring assembly pull bar (13) of this anti-drop device disappears at once, limit for tonnage spring (14) promptly opens, force corresponding the moving down of spring pedestal (15), so the lock dog (23) of separating on the spring pedestal gap occurs with the eccentric wheel end pin, thereby eccentric wheel clockwise rotates around eccentric shaft under it locks the effect of extension spring (17), up to blade tooth on the eccentric wheel working curved surface press locking bar and with the latch segment work plane on the blade tooth three tightly pin, thereby make attached lift scaffold be locked in this position and do not fall, this is locking state.

Carry fault when the mistake of power hoisting mechanism and get rid of, restart this anti-drop device of back and conciliate under the effect of lock dog, promptly can automatically locking state be transformed into unlocking condition, make attached lift scaffold recover normal operation at load limiter.

Fig. 3 is an on-the-spot scheme of installation of the present utility model:

(D) is structure trunk among the figure, the heavy frame of (C) lifting, anti-fall beam, (B) anti-tilt device, (A) anti-drop device, (E) power-lifter, (F) attached lift scaffold, (G) locking bar.

This anti-drop device is by the 4-φ on its body ₁The hole is installed on the heavy frame (F) of attached lift scaffold, locking bar (G) is that vertical hanging is on lifting, anti-fall beam (C), the driving machine of power-lifter also is to hang on lifting, the anti-fall beam (C), and anti-tilt device is temporarily fixed on the structure trunk (D), and it can be moved with need of work.

This shows the on-the-spot installation of the utility model anti-drop device and uncomplicated, but must guarantee each bond sites safety, reliable, simultaneously must conscientiously inspection and an an extraordinary person be compound through three times to the degree that compresses of the vertical concentricity of locking bar and catching device and suspension ring on the load limiter pull bar and limit for tonnage spring, can drop into operation after meeting installation requirement.

Claims

1, full-automatic " the HS-5000 type anti-drop device " of a kind of modern high-rise building new technology that is used for---attached lift scaffold, and existing similar products are a kind of simple anti-fall and product that can not automatic unlocking, so this anti-drop device performance is better than existing product, it is by casing, load limiter, locking and release mechanism and super, lose set controller four most of compositions, it is characterized in that: the limit for tonnage body is as the central structure of anti-drop device casing, locking is installed in the left side cavity of casing with release mechanism, super, lose set controller and be arranged in the cavity on casing right side, and it is super, lose the reaction signal that carries and to form connected effect with console.

2, the load limiter that is in anti-drop device casing middle part according to claim 1 is characterized in that: the load limiter body sidewall is provided with the otch of left and right symmetry, the width of limit for tonnage spring pedestal two lugs and the width of this otch adapt, and two lugs are limited to upper and lower moving in the otch, the spring assembly pull bar is provided with the suspension ring that articulate with power-lifter, also is provided with on the spring pedestal lug to separate lock dog and stop screw super, that lose set controller.

3, locking and the release mechanism that is installed in the cavity of anti-drop device casing left side according to claim 1 is characterized in that: the work plane of latch segment is provided with the shape of threads blade tooth, eccentric wheel is also to be provided with blade tooth on belt length end pin shape and its working curved surface, thus when separate the lock dog top when leaving with the eccentric wheel end pin latch segment and eccentric wheel locking bar tightly pinned anti-drop function finish.Releasing process promptly is to make the correlation behavior of above-mentioned member convert the process of state in contrast automatically to.

4, super, the mistake set controller that is installed in the cavity of anti-drop device casing right side according to claim 1 is characterized in that: travel switch, limit stick, adjustment toggle switch all are fixed on the limiting plate.And stop screw is placed on the right lug of limit for tonnage spring pedestal, when the power-lifter of attached lift scaffold overload occurs or loses when carrying, travel switch promptly in time disconnects the power supply of engine and it is quit work, and this signal can be delivered to console and form the reaction that links, thereby make super, this effectively solution of difficult problem acquisition of mistake year control.