CN103896120A

CN103896120A - Falling-into-well prevention device for elevator

Info

Publication number: CN103896120A
Application number: CN201210567109.4A
Authority: CN
Inventors: 丁飞; 侯广乾
Original assignee: Hitachi Elevator China Co Ltd
Current assignee: Hitachi Elevator China Co Ltd
Priority date: 2012-12-24
Filing date: 2012-12-24
Publication date: 2014-07-02
Anticipated expiration: 2032-12-24
Also published as: CN103896120B

Abstract

The invention discloses a falling-into-well prevention device for an elevator. The falling-into-well prevention device comprises at least one stand column, swing rods and guide wheels, wherein the stand columns are arranged on the hoistway wall on one side of an elevator landing door, at least one swing rod is arranged corresponding to each stand column, and one end of each swing rod is hinged to the corresponding stand column; one guide wheel is arranged corresponding to each swing rod, and each guide wheel is arranged on an elevator car door. Along with the opening of the elevator car door, the guide wheels abut against the swing rods so that each swing rod can swing from a first working position to a second working position, wherein a large included angle is formed between the first working position and the corresponding stand column, and a small included angle is formed between the second working position and the corresponding stand column; along with the closing of the elevator car door, the swing rods are released by the guide wheels so that each swing rod can swing from the second working position to the first working position. Through blocking of the swing rods, it can be effectively avoided that because a passenger enters the elevator by mistake when the landing door is already open but an elevator car is not in a specific position, a falling-into-well accident is caused, and the falling-into-well prevention device is low in manufacturing cost and good in safety.

Description

The anti-fall well device of elevator

Technical field

The invention belongs to elevator accessory technical field, be specifically related to a kind of anti-fall well device of elevator of the protection of the personal security for vertical lift.

Background technology

Vertical lift, in day-to-day operation process, does not arrive when calling layer at car, and calling layer by layer door is opened because of other reason, and passenger does not easily note car position and is strayed into elevator and causes personnel's falling accident to occur; Break down at elevator again, repair and maintenance personnel carry out in repair and maintenance process, also easily take for car arrived personnel position and be strayed into elevator cause personnel's falling accident occur.

In current elevator technology, there is no effective means and solve in the time occurring the opened but car of layer door not at assigned address, how to prevent that personnel are strayed into elevator and cause occurring the problem of falling accident.

Summary of the invention

The object of the invention is to for the deficiencies in the prior art part, provide a kind of elevator anti-fall well device, it can effectively prevent the generation of elevator fall contingency.

For achieving the above object, the present invention adopts following technical scheme:

The anti-fall well device of elevator, comprising: column, and quantity is at least one, is arranged on the well enclosure of elevator door one side; Fork, quantity is that corresponding each column is provided with at least one, one end of every fork is hinged on column; Track adjusting wheel, quantity is that a corresponding fork arranges one, each track adjusting wheel is arranged on elevator cage door; Described track adjusting wheel makes fork become one to swing to it and become with described column the second control position of a less angle compared with the first control position of mitre with described column from it with the fork described in contact opened of elevator cage door, and described track adjusting wheel closing and remove and make fork swing to the first control position from the second control position to the contact of described fork with elevator cage door.

As preferably, described column is two, is separately positioned on the well enclosure of elevator door both sides.

As preferably, on every column, be hinged with at least two forks.

Further, the column of corresponding described the first control position is provided with lower limit rubber, and the column of corresponding described the second control position is provided with upper limit rubber.

Further, the free end of described fork is provided with a machine and is associated device and dodges otch.

Further, described fork is provided with alarming sign.Described alarming sign is words identification, light warning device, sound alarming device or their combination.

The present invention is by adopting said structure, and by stopping of fork, in the time occurring the opened but car of layer door not at the assigned address personnel of effectively preventing are strayed into elevator and cause occurring the generation of falling accident, and low cost of manufacture, and safety is good.

Brief description of the drawings

Fig. 1 is the structural representation of fork of the present invention in the time of the first control position.

Fig. 2 is the structural representation of looking up of Fig. 1.

Fig. 3 is the structural representation of fork of the present invention in the time of the second control position.

Fig. 4 is the structural representation of looking up of Fig. 3.

In figure:

11-layer door; 12-well enclosure; 13-car door; 21-column; 22-fork; 221-door machine is associated device and dodges otch; 23-track adjusting wheel; 24-upper limit rubber; 25-lower limit rubber; 26-alarming sign.

Now in conjunction with the accompanying drawings and embodiments the present invention is described in further detail.

Detailed description of the invention

As depicted in figs. 1 and 2, the anti-fall well device of elevator of the present invention, is mainly made up of two columns 21, four forks 22, four track adjusting wheels 23, four upper limit rubber 24 and four lower limit rubber 25.Wherein: two columns 21 are separately positioned on the well enclosure 12 of elevator door 11 both sides.Every two forks 22 are one group, and one end of every group of fork is hinged on respectively on a column 21; The free end of every fork 22 is provided with a machine and is associated device and dodges the length difference of otch 221(both sides fork); It is words identification that every fork is provided with alarming sign 26(the present embodiment).A four track adjusting wheels 23 respectively corresponding fork 22 are fixed on car door 13.Each upper limit rubber 24 and each lower limit rubber 25 respectively a corresponding fork 22 arrange, and can only become at it one to become between the second control position of a less angle to swing compared with the first control position of mitre and itself and described column with described column to limit this fork 22.

Working process of the present invention is as follows:

As shown in Figure 1, when elevator cabin flat level but layer door 11 and car door 13 in the time of closed condition or the opened but car of layer door 11 not in the time of assigned address, each fork 22 under the contact effect of lower limit rubber in becoming one with column compared with the first control position of wide-angle, layer every hole is implemented to stop, to remind car Bu Men district and can prevent that passenger from entering by mistake.As shown in Figure 2, when layer door 11 and car door 13 are during in opening, track adjusting wheel 23 makes fork swing to the second control position (now not encountering upper limit rubber with fork is advisable) from the first control position with the contact fork 22 of opening of car door 13, and passenger gets final product the relieved car that enters; When at closing time, track adjusting wheel is removed the contact effect to fork, and fork is returned on the first control position under own wt effect.

Alarming sign of the present invention, except using words identification, can also use light warning device, sound alarming device or their combination.

Claims

1. the anti-fall well device of elevator, is characterized in that, comprising:

Column, quantity is at least one, is arranged on the well enclosure of elevator door one side;

Fork, quantity is that corresponding each column is provided with at least one, one end of every fork is hinged on column;

Track adjusting wheel, quantity is that a corresponding fork arranges one, each track adjusting wheel is arranged on elevator cage door;

Described track adjusting wheel makes fork become one to swing to it and become with described column the second control position of a less angle compared with the first control position of mitre with described column from it with the fork described in contact opened of elevator cage door, and described track adjusting wheel closing and remove and make fork swing to the first control position from the second control position to the contact of described fork with elevator cage door.

2. the anti-fall well device of elevator according to claim 1, is characterized in that, described column is two, is separately positioned on the well enclosure of elevator door both sides.

3. the anti-fall well device of elevator according to claim 1 and 2, is characterized in that, is hinged with at least two forks on every column.

4. the anti-fall well device of elevator according to claim 1 and 2, is characterized in that, the column of corresponding described the first control position is provided with lower limit rubber, and the column of corresponding described the second control position is provided with upper limit rubber.

5. the anti-fall well device of elevator according to claim 3, is characterized in that, the column of corresponding described the first control position is provided with lower limit rubber, and the column of corresponding described the second control position is provided with upper limit rubber.

6. the anti-fall well device of elevator according to claim 1, is characterized in that, the free end of described fork is provided with a machine and is associated device and dodges otch.

7. the anti-fall well device of elevator according to claim 1, is characterized in that, described fork is provided with alarming sign.

8. the anti-fall well device of elevator according to claim 7, is characterized in that, described alarming sign is words identification, light warning device, sound alarming device or their combination.