CN1740071A

CN1740071A - Lift detecting device and method

Info

Publication number: CN1740071A
Application number: CN 200410041772
Authority: CN
Inventors: 陈金林
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-24
Filing date: 2004-08-24
Publication date: 2006-03-01
Anticipated expiration: 2024-08-24
Also published as: CN100390038C; WO2006021136A1

Abstract

The present invention provides one kind of safety state detecting device and method for the lift hall door and the cage position. The detecting device has serially connected lift hall detection units, each of which comprising connected auxiliary door lock switch of passive lift hall door and dry reed pipe in the door threshold; and one pair of permanent magnets installed in the cage threshold and in the position corresponding the dry reed pipes, and is one detection circuit for detecting the positions of the lift hall door and lift cage. The detecting method includes serially connecting the door lock switches of the active doors in all stories and detecting the lift hall door system state in two modes simultaneously to raise the safety performance.

Description

The detecting device of elevator and method of inspection

Technical field

What the present invention relates to is the detecting device that whether is in a safe condition of a kind of hoistway door and car position and the method for inspection of hoistway door, is the improvement to the door lock of elevator safety chain that generally adopts at present, is suitable for the various visitor of the overwhelming majority and borrows cage lifters.

Background technology

As elevator, its Room door is driven down by gate and opens under the normal circumstances, for operator's turnover, and each layer Room door by the band door lock the active door and form with the passive door of secondary door lock, all active doors and passive door all are to be cascaded with switch, initiatively door and passive door are closed when putting in place when all, the door lock safety chain of the closure that forms, owing to have only a door lock safety chain to monitor the opening of Room door, there is not the another one monitoring system detecting, control under the situation of short circuit, prevent to open the door the away generation of terraced phenomenon of this safety chain, the incident of elevator door cage operation under the state of opening takes place in some cases really, the party concerned is squeezed between car and sill or the Room door upper ledge, cause serious safety misadventure, this problem still happens occasionally so far.

When the corresponding floor of elevator car arrives, can produce the overproof phenomenon of flat bed in some cases, if can not in time find and be adjusted and to mix the passenger who pours out lift car into, produce the incident of injury, according to foreign statistic, European Union member countries' elevator has been arranged as second of various elevator accident because of the overproof former thereby incident of injury total amount that cause of Elevator landing, and present many elevators can't detect the appearance of car flat bed off-gage phenomenon when Room door is opened.

Above-mentioned two problems all belongs to hoistway door and the car relative position is in non-safe condition.

Moreover, when all initiatively door and passive door close when putting in place, the door lock safety chain of the closure that forms, the quantity of its switch is the twice of elevator floor quantity, because this number of switches is many, it is big and exist the trouble point switch and check situation of difficult to exist the probability of fault.

Summary of the invention

The objective of the invention is to improve the weak point that above-mentioned prior art exists, the detecting device that provides a kind of hoistway door and car relative position whether to be in a safe condition.

Another object of the present invention is to improve the weak point that above-mentioned prior art exists, a kind of method of inspection of hoistway door safety chain is provided.

Purpose of the present invention can reach by following measure:

A kind of detecting device of elevator, be connected to the dry-reed tube of line in hoistway door sill one side position installation one, in car sill one side, a pair of permanent magnet is installed in the position near the dry-reed tube of installing corresponding to lading door dill, it is characterized in that being installed in the dry-reed tube two ends line on the lading door dill and the secondary door switch two ends of door position, the passive Room of the cooresponding detection elevator of each floor is in parallel, the detecting unit of installing by above-mentioned the same manner by lead and upper and lower all floors is serially connected and constitutes a path, joins with control circuit by 2 of E, F.

Substitute permanent magnet with luminescent device and be installed on car sill one side, be installed in lading door dill one side with luminescent device alternative dry reed pipe.

All Rooms of elevator doors are detected the door switch of door positions initiatively all to be chained together and to form the method for inspection of an elevator safety door lock circuit C, D and the hoistway door safety chain of two different detection modes of detecting device E, F composition of elevator, different testing goals, whether the hoistway door safety chain is opened, and whether car position is in a safe condition and carries out double check under the situation of opening the door.

The invention has the beneficial effects as follows: so-called " redundancy " monitoring is realized in this easiest generation safety misadventure zone of hoistway door, in time detect hoistway door and car relative position and whether be in normal and safe condition, and reduced the door lock of elevator safety chain switch of half, reduced the probability that breaks down at this link.

Description of drawings

Fig. 1 is the door lock safety chain figure on the existing hoistway door;

Fig. 2 is the door lock safety chain figure on the improved elevator active of the present invention door;

Fig. 3 is improved lift car of the present invention and Room door relative position detection figure.

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

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

GA is mounted in the dry-reed tube of lading door dill one side;

The code name back 1, n, n-1, n-2 ... be hoistway door floor code name;

A, B, C, D, E, F are respectively the contact code names of Fig. 1, Fig. 2, Fig. 3;

N, S are permanent magnet magnetic pole code names.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples:

Detecting device technical scheme of the present invention is:

1, at each lading door dill one side position of elevator dry-reed tube GAn, GAn-1, the GAn-2 that is connected to line is installed

2, in car sill one side, a pair of permanent magnet N, S are installed in the position near the dry-reed tube of installing corresponding to lading door dill, its spacing is slightly wideer than dry-reed tube, make its can be when the lift car flat bed dry-reed tube be subjected to magnetic field reliable effect closure, the conducting of this a pair of permanent magnet;

3, will be installed in secondary door switch FDSn, FDSn-1, the FDSn-2 of position on dry-reed tube two ends line on each lading door dill and the passive Room of the cooresponding detection elevator of each floor door ... two ends are in parallel; 4, will be and the dry-reed tube that connects, switch ends with quadrat method the bonded assembly detecting unit is installed and is serially connected by above-mentioned by lead and all floors of upper and lower floor, constitute a path, join by 2 of E, F and control circuit, as shown in Figure 3.

Substituting permanent magnet with luminescent device and be installed on the car in detecting device of the present invention, is identical with its essence of photoelectric device alternative dry reed pipe with the effect that reaches.

Detecting device of the present invention is to arrive at a station flat bed when opening the door when elevator, though the secondary door lock on the door of the passive Room together is opened, but electric current still can be by being installed in dry-reed tube on the lading door dill because of the effect closing of contact of the appended a pair of permanent magnet of car sill, and the formation loop, 2 of E, F still are channel status.

When the lift car flat bed arrives at a station when opening the door, overproof as the car flat bed, be installed in dry-reed tube on the lading door dill because of can not get a pair of permanent magnet field effect on the car sill, and still be in is open-circuit condition, again because passive door lock also is open-circuit condition, therefore E, the F end among Fig. 3 is open circuit, can send control signal.And arrive at a station flat bed when opening the door when elevator, if this moment, lift car moved (because of certain a part of et out of order or the artificial short circuit of elevator safety door lock link quilt etc.), be installed in a pair of permanent magnet the moving on the car sill along with car, being installed in dry-reed tube on the lading door dill no longer is subjected to magnetic field and acts on, will become open circuit by original attracting state, and because the passive door lock-switch also is open-circuit condition, therefore E, the F end among Fig. 3 is open circuit, when this kind situation occurs, also can send control signal, the control elevator.

Method of inspection technical scheme of the present invention is:

With all door switch DSn on the elevator active door, DSn-1, DSn-2 ... be cascaded, pass through C, A in Fig. 1 circuit of 2 former door lock of elevator of replacement of D, B, as shown in Figure 2, form two with Fig. 3 circuit and detect the loop, form two different detection modes, the method of inspection of the hoistway door safety chain of different testing goals, jointly elevator being carried out many-sided safe condition from two sides detects, be not affected in original door lock of elevator safety chain function on the other hand, realization is to the support of original elevator control circuit, and reduced the switch of the door lock of elevator safety chain of half.

Claims

1, a kind of detecting device of elevator, be connected to the dry-reed tube of line in hoistway door sill one side position installation one, in car sill one side, a pair of permanent magnet is installed in the position near the dry-reed tube of installing corresponding to lading door dill, it is characterized in that being installed in the dry-reed tube two ends line on the lading door dill and the secondary door switch two ends of door position, the passive Room of the cooresponding detection elevator of each floor is in parallel, the detecting unit of installing by above-mentioned the same manner by lead and upper and lower all floors is serially connected and constitutes a path, joins with control circuit by 2 of E, F.

2, the detecting device of elevator according to claim 1 is characterized in that substituting permanent magnet with luminescent device is installed on car sill one side, is installed in lading door dill one side with luminescent device alternative dry reed pipe.

3, a kind of method of inspection of elevator, it is characterized in that elevator all detect Room doors initiatively the door switch of door positions all be chained together and form the method for inspection of an elevator safety door lock circuit C, D and the hoistway door safety chain of two different detection modes of detecting device E, F composition of elevator, different testing goals, whether the hoistway door safety chain is opened, and whether car position is in a safe condition and carries out double check under the situation of opening the door.