CN2316303Y

CN2316303Y - Rope breaking anti-falling device of vertical lifting machinery

Info

Publication number: CN2316303Y
Application number: CN 97237838
Authority: CN
Inventors: 苏茂兵
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-13
Filing date: 1997-10-13
Publication date: 1999-04-28
Anticipated expiration: 2007-10-13

Abstract

The utility model relates to a vertical lift machinery's broken rope anti-falling device, the top of the lift body arrange in through the load pole cover that disposes the pressure spring with lift haulage rope matched with pulley yoke, the outside of load pole symmetry at least be provided with a pair of can with lift supporting rack complex prevent weighing down the coupler body, its one end articulates in the lift body, the other end is free hook-like structure end, all articulate on the pulley yoke with prevent weighing down coupler body matched with connecting rod one end, the other end articulates in the middle part of the anti-falling coupler body who connects. The outside of the pressure spring respectively arranged on each bearing rod is sleeved with a rigid protective sleeve, and the length of the rigid protective sleeve is between the length range of the expansion limit state position of the pressure spring.

Description

The disconnected rope anti-fall device of vertical lift machinery

The utility model relates to a kind of vertical lift machinery, particularly the disconnected rope anti-fall device of the equipment of using as building operation such as vertical conveyor.

The equipment such as vertical conveyor that vertical lift machinery, particularly building operation are used usually all are to have under quite the lifting bearing support of height cooperates, and realize lifting to coil equipment by tractions such as steel ropes.Which kind of reason no matter, the steel rope of traction usefulness are in case fracture, if no suitable fender guard is in time taked urgent safeguard procedures, falling rapidly of jacking equipment will cause unthinkable accident.For this reason, publication number is that the Chinese patent literature of CN2159955 discloses a kind of rope broken protector that is used for elevator.Its structure is that the load bar that makes the top of common trailed lifting body be configured stage clip is placed in the pulley base that matches with the lifting hauling rope, the outside of load bar is symmetrically arranged with a pair of anti-fall coupler body at least, the one end is articulated in lifting body, the other end is free hook formation end, and it can collude to hang and cooperate with the lifting bearing support in the urgent moment.Each anti-fall coupler body links to each other respectively and is connected to connecting rod, and the one end all is articulated on the pulley base, and the other end is articulated in the middle part of anti-fall coupler body separately.During normal the use, lifting body is done dipping and heaving under the tractive force effect of steel rope, make this stage clip be in compressed state; In case wire cable rupture, lifting body loses tractive force and is subjected to the tension force effect of this stage clip and glides rapidly, and connecting rod is pushed down and makes anti-fall coupler body outward turning, its free hook formation end can be hooked on rapidly on the lifting bearing support, has stoped the tenesmus of lifting body.Because the work or the environment for use of this kind equipment generally all compare badly; most important and stage clip critical component is again to be in to have no the exposed state that blocks and protect all the time in its structure; not only be easy to be damaged even damage; and it is under the compressed ultimate limit state for a long time during normal operation; normal elastic force is affected in the performance of special moment; particularly in case snapped in by extraneous foreign matter and stage clip can not normally be compressed, just may lose the urgent anti-drop function that should have fully.

The purpose of this utility model is the disconnected rope anti-fall device that a kind of more safe and reliable vertical lift machinery is provided at above-mentioned situation.

In the disconnected rope anti-fall device of vertical lift machinery of the present utility model, the load bar that the top of lifting body also is configured stage clip is placed in the pulley base that matches with the lifting hauling rope.The outside of load bar is symmetrically arranged with a pair of anti-fall coupler body that can cooperate with the lifting bearing support at least, generally can all be provided with this anti-fall coupler body in four angle positions of lifting body.One end of this anti-fall coupler body is articulated in lifting body, and the other end is free hook formation end.Each anti-fall coupler body is combined with corresponding connecting rod respectively, and the one end all is articulated on the pulley base, and the other end is articulated in the middle part of institute's each anti-fall coupler body of bonded assembly respectively.All be equipped with the protecting jacket of rigidity outside the stage clip that is disposed at respectively on each load bar, its length is between the length range of ultimate limit state position is stretched, contracted to this stage clip, and the length in the time of generally can making its length approach stage clip minimal compression position is for well.When tractive force during normal use makes this stage clip be compressed near the ultimate limit state position, its outer rigid protection cover that is nested with can contact with pulley base and bear and transmit the lifting tractive force, it is stressed that stage clip is no longer continued, and avoids being in for a long time the adverse effect that the compression limit state may cause.In addition, be arranged at the outer protecting jacket of this stage clip except that playing the general protective action to this stage clip, can also prevent snapping in of extraneous foreign matter effectively especially, can be in reliable and effective anti-unexpected readiness thereby make all the time to its this stage clip crucial and central role of safety precaution, the anti-fall safety of disconnected rope has had more failure-free assurance.

In addition, anti-fall coupler body such as employing in the said structure have more high-intensity tubular body structure, and the safety precaution performance is further improved.

Below foregoing of the present utility model is described further with example shown in the drawings.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.

Fig. 1: structure of the present utility model

As shown in the figure, in the disconnected rope anti-fall device of this vertical lift machinery, lifting body 8 disposes the load bar 1 of stage clip 3 and is placed in the pulley base 4 that matches with lifting hauling rope 10 through the top.The outside of load bar 1 is symmetrically arranged with a pair of anti-fall coupler body 7 in the urgent tubular body structure form that constantly can cooperate with lifting bearing support 9 of disconnected rope at least.The one end is articulated in lifting body 8, and the other end is free hook formation end 6.Each anti-fall coupler body 7 is connected with a connecting rod 5 respectively, and the one end all is articulated on the pulley base 4, and the other end is articulated in the middle part of the anti-fall coupler body 7 of institute's bonded assembly respectively.Outside the stage clip 3 that each load bar 1 is disposed, all be equipped with the protecting jacket made from solid drawn pipe 2 respectively, its length and is preferably length when approaching stage clip 3 minimal compression positions between the length range of the ultimate limit state position of stretching, contract of this stage clip 3.

Claims

1. the disconnected rope anti-fall device of a vertical lift machinery, the load bar that the top of lifting body is configured stage clip is placed in the pulley base that matches with the lifting hauling rope, the outside of load bar is symmetrically arranged with a pair of anti-fall coupler body that can cooperate with the lifting bearing support at least, the one end is articulated in lifting body, the other end is free hook formation end, connecting rod one end that matches with anti-fall coupler body all is articulated on the pulley base, the other end is articulated in the middle part of the anti-fall coupler body of institute's bonded assembly respectively, it is characterized in that all being equipped with outside the stage clip (3) that is disposed at respectively on each load bar (1) protecting jacket (2) of rigidity, its length is stretched between this stage clip (3), between the length range of the ultimate limit state that contracts position.

2. disconnected rope anti-fall device as claimed in claim 1, the length the when length that it is characterized in that said protecting jacket (2) approaches stage clip (3) minimal compression position.

3. disconnected rope anti-fall device as claimed in claim 1 or 2 is characterized in that said anti-fall coupler body (7) is a tubular body structure.