CN2399362Y

CN2399362Y - Safety protector of elevator door

Info

Publication number: CN2399362Y
Application number: CN 99239998
Authority: CN
Inventors: 朱汉荣; 林章兴; 姚福官; 杨尚勤
Original assignee: Shanghai Laogang Shenling Electric Cable Co ltd
Current assignee: Shanghai Laogang Shenling Electric Cable Co ltd
Priority date: 1999-10-22
Filing date: 1999-10-22
Publication date: 2000-10-04
Anticipated expiration: 2009-10-22

Abstract

The utility model discloses a safety protector of an elevator door. The utility model is characterized in that light screens are installed in two safety contacting plates. The light screens and the safety contacting plates in the prior art are felicitously assembled with each other to form an integrative structure when the utility model is adopted; thus, a safety protector of an elevator door has the protecting functions of the light screens, and the utility model has the functions of the safety contacting plates simultaneously; thereby, the safety protection of the elevator door can be realized with double safety. The utility model uses the light screen protection as a first protection device, and the safety contacting plates are utilized to do work when the malfunctions of the light screens are generated; thus, the normal use of an elevator can not be influenced, and the safety and the reliability of the safety protector of the elevator door are improved.

Description

The elevator door safety guard

The utility model relates to the safety guard of elevator door, specifically prevents the passenger to close the safety device that is rolled in the closed procedure at elevator door.

Existing elevator door safety guard, generally commonly used has two kinds:

1, safety edge is meant that elevator door in closing closed procedure, runs into touch panel as passenger, goods or obstacle, by the safety edge displacement, backs down micro-switch, and the elevator door of cutting out reopens;

2, light curtain safety guard-safeguard; be meant by infrared light-emitting diode and form intensive light curtain screen with adoptor; its light beam is evenly distributed in the gangway of elevator door; when people, goods or obstacle block any one light beam; the in-to-in microprocessor is given signal of output relay at once, and the elevator door in the pass closed procedure is become the state of opening or waiting for.

Though more than two kinds of elevator door safety guards can solve the anti-phenomenon of rolling of elevator door, but also there is certain shortcoming, their safety performance is also not really high, safety edge is a kind of mode of operation of impacting type, in case micro-switch is malfunctioning or misoperation, situations such as elevator door excessive velocities occur, and just might occur clashing into even the people's that runs over and injure serious consequence; Though the protection of light curtain has solved the mode of operation of impacting type; become a kind of contactless mode of operation; bring a kind of sense of security to the passenger; but existing light curtain all is to have tens and even up to a hundred infrarede emitting diodes and adoptor work in combination; if when any damaged tubular was wherein arranged, the light curtain caused elevator door to close with regard to cisco unity malfunction; influence the normal use of elevator, this is the deadly defect that present light curtain is unreliable and fault rate is high.

The purpose of this utility model is to provide a kind of improved elevator door fender guard, and it can overcome some shortcomings of the prior art, when light curtain safety guard et out of order, can adopt safety edge, can not influence the normal use of elevator.

The technical solution of the utility model is achieved in that the elevator door fender guard; it mainly comprises two safety edges that are contained in the elevator door; the micro-switch that matches with safety edge; or be contained in light curtain in the elevator door; this light curtain mainly comprises projector, receptor, major and minor controller and splitter box, it is characterized in that: in two safety edges the light curtain is housed.

The utility model is combined as a whole safety edge of the prior art and light curtain dexterously, make the elevator door fender guard both have the function of light curtain protection, has simultaneously the function of safety edge again, carried out double insurance for the elevator door safety guard-safeguard, because light curtain protective value is better than safety edge, this fender guard is protected the light curtain as first fender guard, when light curtain et out of order, carry out work by safety edge, can not influence the normal use of elevator, improve the safety and the reliability of elevator door fender guard; And safety edge all is according to existing standard from size, profile to installation method, and commonality is very wide, does not need to change the fitted position of existing elevator, can greatly facilitate the maintenance of elevator directly with the original safety edge of this product replacement.

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

Fig. 2 is the safety edge sectional view among Fig. 1

Fig. 3 is that circuit of the present utility model connects block diagram

Fig. 4 is that the submaster controller circuit among Fig. 3 connects block diagram

Fig. 5 is that the main controller circuit among Fig. 3 connects block diagram

Fig. 6 is the submaster controller electrical connection diagram among the utility model one embodiment

Fig. 7 is the master controller electrical connection diagram among the utility model one embodiment

Fig. 8 is the microprocessor program diagram of circuit in Fig. 7 master controller

The utility model will be further described below in conjunction with drawings and Examples.

The utility model mainly comprises two safety edges 1 that are contained in the elevator door, the micro-switch 2 that matches with safety edge 1, one of one micro-switch is connected in the splitter box 13, the other end is connected with an end of another micro-switch, the other end of another micro-switch is connected to the control panel of elevator, and (this control panel generally is contained in the top of building, be used to monitor the running condition of elevator, be that all elevators all must be equipped with), when obstacle is run into safety edge, safety edge can produce the displacement of trace, the displacement of this trace can be backed down micro-switch 2, the elevator door of cutting out reopens, and safety edge 1 comprises plate body 3, generally also can be provided with dividing plate 4 in plate body 3, two shape chambeies 5 be can form, baffle plate 6 and top bar 7 also are provided with at the front end of safety edge 1; Some is equipped with light curtain 8 in the prior art in elevator door at present, light curtain 8 contain dozens or even hundreds of luminous, reception diode and integrated package, mostly adopting a pair of or several is a unit to diode and an integrated package series connection, form projector 9, receptor 10, each projector 9, receptor 10 and the master who matches,

submaster controller

11,12 are also adopted series connection, input end by the relay 16 in cable 14 and the splitter box 13 is connected again, the principle of work of light curtain is a kind of switching process of photoelectricity, light-emitting diode converts the electric pulse modulation signal to optical signal, it is different from prior art: in two safety edges 1 light curtain 8 is housed, the size of safety edge wherein, profile should meet the standard of existing safety edge, the size of light curtain will change, and makes it to be contained in the safety edge; In the shape chamber 5 of a safety edge 1, projector 9 is housed in an embodiment, submaster controller 12, receptor 10 and master controller 11 are housed in the shape chamber of another piece safety edge 1, in a preferred embodiment, select 32 groups of projectors for use, submaster controller, receptor and master controller, their concrete installation site is, front end is equipped with projector 9 in the shape chamber of a safety edge 1, submaster controller 12 is equipped with in the rear end, front end is equipped with receptor 10 in the shape chamber of another piece safety edge 1, master controller 11 is equipped with in the rear end, the light curtain is protected as first fender guard, switch in the splitter box is got to the control of light curtain, when a projector that is constituted by a diode is damaged, cause a certain light beam impassabitity in the light curtain, when elevator door can't cut out, can carry out work by safety edge with switch-over to safety edge; Usually in the light curtain, also can adorn an indicator lamp in the prior art; indicator lamp was bright when the light curtain broke down; the light curtain of announcement lost efficacy; need repair; combination by above structure; the reliability of elevator door fender guard will improve several times than existing smooth proscenia protection; the utility model is also to receptor; in the programming in the microprocessor 15 in the master controller higher breakthrough is arranged; program can adopt assembly language; also can adopt the other Languages establishment; the diagram of circuit of program as shown in Figure 8; when light curtain fender guard normal operation; repertoire with present light curtain; when in 1-4 projector (light-emitting diode) or receptor (adoptor) damage; after microprocessor 15 scanning and being judged; can skip the pipe that (ignoring) damages; remainder is reconfigured; the light curtain recovers normal operation again about 30 seconds; when (comprising 5) more than 5 and damage, after microprocessor scanning and being judged, turn-off the light curtain immediately; send chimes of doom after 15 seconds; warning finishes, and signal is transformed into safety edge, carries out work by safety edge.Mark 17 expression annunciators in the accompanying drawing, 10 times of amplifiers of 18 expressions, 19 is the high speed integrator, 20 is the signal frequency conversion device, 21 is modulator, these circuit are prior art, are not described at this, and mark 22 is a connector, P represents to be connected to control panel, top bar 7 is contained in front end two place of safety edge 1 in an embodiment, and baffle plate 6 adopts the transparent material of similar organism glass, is beneficial to projector and transmits and receives device and receive.

Claims

1, elevator door fender guard; it mainly comprises two safety edges that are contained in the elevator door; the micro-switch that matches with safety edge; be contained in the light curtain in the elevator door; this light curtain mainly comprises projector, receptor, major and minor controller and splitter box, it is characterized in that: described light curtain is contained in described two safety edges.

2, by the described elevator door fender guard of claim 1, it is characterized in that: in the shape chamber of a safety edge, projector, submaster controller are housed, in the shape chamber of another piece safety edge, receptor and master controller are housed.

3, by claim 1 or 2 described elevator door fender guards, it is characterized in that: front end is equipped with projector in the shape chamber of a safety edge, and submaster controller is equipped with in the rear end, and front end is equipped with receptor in the shape chamber of another piece safety edge, and master controller is equipped with in the rear end.