WO2006021136A1

WO2006021136A1 - Detecting device and detecting method for an elevator

Info

Publication number: WO2006021136A1
Application number: PCT/CN2005/001061
Authority: WO
Inventors: Jinlin Chen
Original assignee: Jinlin Chen
Priority date: 2004-08-24
Filing date: 2005-07-18
Publication date: 2006-03-02
Also published as: CN1740071A; CN100390038C

Abstract

The invention provides a detecting device for detecting whether the position between the landing door of an elevator and the car of an elevator is in a normal and safe state, and a new landing-door's safety detecting method. Said detecting device is constituted in such a way that the both ends of the accessory door-interlock switch for detecting the position of the driven landing door of the elevator are shunt-wound with the dry-reed-pipe mounted on the landing sills in the same floor, and then is series-wound with the other detecting devices mounted in the same way in the other floors to constitute a passageway, wherein a pair of permanent magnets are mounted on the car sill and in corresponding with the dry-reed-pipe mounted on landing sills, to form a detecting circuit for detecting whether the landing door of the elevator and the car of the elevator are in a normal and safe state. Said detecting method is to detect the state of the landing door system of the elevator in two detecting ways by making the door interlock switch of the driving door in every landing door of the elevator series-wound with each other, thereby improving safe performance.

Description

Elevator detection device and detection method

Technical field

The invention relates to a detecting device for detecting whether an elevator hall door and a car position are in a safe state and a detecting method of an elevator hall door, and is an improvement of a safety link of an elevator door lock which is generally adopted at present, and applies most of various types. All kinds of passenger goods lifts.

Background technique

As an elevator, under normal circumstances, its hall door is opened by the car door for the passengers to enter and exit, and each floor door is composed of an active door with a door lock and a passive door with a sub-door lock. All active and passive doors are connected in series with switches. When all active and passive doors are closed, a closed door lock safety link is formed, and only one door lock safety link is used to monitor the hall door. In the open state, there is no other monitoring system to prevent the door from walking when the safety link is short-circuited, and in some cases, the car is operating in the open state of the elevator door. Squeeze the person between the car and the sill or the upper frame of the hall, causing a serious safety accident. This problem still occurs from time to time.

When the elevator car arrives at the corresponding floor, in some cases, the phenomenon of leveling is caused. If it cannot be found and adjusted in time, it will be mixed with passengers entering and leaving the elevator car, causing injury incidents. According to foreign statistics. The total number of damage incidents caused by elevators in the EU countries due to the elevator level is already ranked second in various elevator accidents. At present, many elevators cannot detect the appearance of the car leveling phenomenon when the hall door is opened. .

Both of the above problems belong to the unsafe state of the elevator hall door and the relative position of the car.

Furthermore, when all the active and passive doors are closed, a closed door lock safety link is formed, and the number of switches is twice the number of elevator floors. Due to the large number of switches, there is a high probability of failure. There is also a case where the failure point switch is difficult to check.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to improve the above-described deficiencies of the prior art and to provide a detecting device for whether or not the relative position of the elevator hall door and the car is in a safe state.

Another object of the present invention is to improve the deficiencies of the prior art described above and to provide a method for detecting a safety link of an elevator hall door.

The object of the present invention can be achieved by the following measures: A detecting device for an elevator, wherein a reed pipe connected with a wire is installed at a side of the elevator hall door, and is installed on a side of the car sill corresponding to a reed pipe installed in the sill of the hall door A pair of permanent magnets, characterized in that the two ends of the reed switch mounted on the sill of the hall door are connected in parallel with the two ends of the auxiliary door lock switch corresponding to each floor to detect the position of the passive hall door of the elevator, through the wire and the upper, The detection units installed in the same manner as described above are connected in series to form a path, which is connected to the control circuit through two points E and F.

Instead of the permanent magnet, a light-emitting device is mounted on the side of the car sill, and an optoelectronic device is used instead of the reed switch to be mounted on the side of the hall door sill.

The door lock switches for detecting the position of the active door in all hall doors are connected in series to form an elevator safety door lock circuit C; D and the detection devices E and F of the elevator form two different detection modes and elevator halls for different detection purposes. The detection method of the door safety link, whether the safety link of the elevator hall door is opened, whether the car position is in a safe state in the case of opening the door for double detection.

The invention has the beneficial effects of: realizing so-called "redundant technology" monitoring of the elevator hall door, which is the most prone to safety accident area, and detecting whether the relative position of the elevator hall door and the car is in a normal and safe state, and is reduced by half. The elevator door locks the safety link switch, reducing the probability of failure on the link.

DRAWINGS

Figure 1 is a diagram showing the safety link of the door lock on the existing elevator hall door;

Figure 2 is a diagram showing the safety link of the door lock on the elevator active door of the present invention;

Figure 3 is a diagram showing the relative position detection of the elevator car and the hall door of the present invention.

In the figure, DS is the door lock safety switch on the elevator active door;

FDS is the door lock safety switch on the elevator passive door:

GA is a reed switch installed on the side of the hall door;

1, n, n-1, n-2... after the code name is the elevator hall door code;

A, B, C, D, E, and F are the contact codes of Figure 1, Figure 2, and Figure 3, respectively;

N, S are permanent magnet magnetic pole codes.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

The technical solution of the detecting device of the invention is:

1. Install the reed switch GAn, GAn - 1 connected to the side of the elevator door of each elevator door. GAn-2......;

2. On the side of the car sill, a pair of permanent magnets N and S are installed near the reed pipe installed in the sill of the hall door, and the spacing is slightly wider than that of the reed switch, so that it can be flat in the elevator car. The reed switch is reliably closed and turned on by the magnetic field of the pair of permanent magnets;

3. Connect the two ends of the reed switch installed on the floor sill of each hall to the sub-door lock switches FDSn, FDSn-K FDSn- 2 of the position corresponding to each floor of the elevator passive hall door. ;

4. Connect the connected reed switches and the two ends of the switch through the wires to all the floors of the upper and lower floors in the same way as above to connect the detection units in series to form a path, through the E and F points and control. The circuits are connected, as shown in Figure 3.

In the detecting device of the present invention, a light-emitting device is used instead of the permanent magnet to be mounted on the car, and the effect is achieved by replacing the reed switch with a photoelectric device.

The detecting device of the invention is when the elevator reaches the station to open the door, although the auxiliary door lock on the passive hall door is opened together, the current can still pass through the reed pipe installed on the hall door sill due to the car ridge The contact points of a pair of permanent magnets are closed, and the loop is formed, and the two points of E and F are still in a path state.

When the elevator car is level to the station to open the door, if the car is flat, the reed switch installed on the sill of the hall door can not get the magnetic field of a pair of permanent magnets on the car sill, but still It is in an open state, and since the passive door lock is also in an open state, the E and F ends in Fig. 3 are open, and a control signal can be issued. When the elevator arrives at the level to open the door, if the elevator car is running at this time (because of a certain failure or the elevator safety door lock link is artificially shorted, etc.), a pair of permanent magnets mounted on the car sill The movement of the car, the reed switch installed on the sill of the hall door is no longer affected by the magnetic field, will change from the original suction state to the open circuit, and since the passive door lock switch is also open, so in Figure 3 The E and F ends are open, and when this happens, control signals can also be sent to control the elevator.

The technical solution of the detection method of the invention is:

Connect all the door lock switches DSn, DSn-1, DSn-2... on the elevator active door in series, and replace the A and B in the circuit of Figure 1 of the original elevator door lock by two points C and D, as shown in Figure 2. As shown in the figure, the circuit of Fig. 3 constitutes two detection circuits, which form two different detection methods and different detection purposes for the elevator hall safety link detection method, and jointly perform safety inspection on various aspects of the elevator from two sides, On the one hand, the original elevator door lock safety link function is not affected, the support of the original elevator control circuit is realized, and the switch of the elevator door lock safety link is reduced by half.

Claims

Rights request

1. A detecting device for an elevator, which is installed with a reed switch connected to the side of the elevator hall door, on the side of the car sill, corresponding to the reed pipe installed in the sill of the hall door A pair of permanent magnets are installed at the position, and the two ends of the reed switch installed on the floor sill of the hall are connected in parallel with the two ends of the auxiliary door lock switch corresponding to each floor to detect the position of the passive door of the elevator, through the wires and The detection units installed on the upper and lower floors in the same manner as above are connected in series to form a passage, which is connected to the control circuit through two points E and F.

The detecting device for an elevator according to claim 1, wherein the permanent magnet is replaced by a light-emitting device on a side of the car sill, and the reed switch is replaced by a photovoltaic device on the side of the hall sill.

3. A method for detecting an elevator, characterized in that the door lock switches of all the detection hall door active door positions of the elevator are connected in series to form an elevator safety door lock circuit C, D and an elevator detecting device E, F. Different detection methods, different detection purposes, elevator door safety link detection method, whether the elevator hall door safety link is open, whether the car position is in a safe state when the door is opened for double inspection