CN2470326Y

CN2470326Y - Detection device for anormal opening of elevator door

Info

Publication number: CN2470326Y
Application number: CN 01217409
Authority: CN
Inventors: 陈金林
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-14
Filing date: 2001-02-14
Publication date: 2002-01-09
Anticipated expiration: 2011-02-14

Abstract

The utility model is a detecting device used for triggering an alarm circuit when an elevator door can not be normally opened. A magnetic control transfer switch is arranged on the door pocket of the landing door on each floor; a pair of permanent magnets are arranged on the landing door, which enable reliable conversion of the state of the magnetic control transfer switch when the landing door is closed. A magnetic control switch is arranged on the ridge of the landing door, in parallel connection with a normally opened contact group of the magnetic control transfer switch on the door pocket; a pair of permanent magnets are arranged on the elevator cabin ridge, which take effect on the magnetic control switch when the cabin is in level and connect in series with parallel-connected magnetic control switches of all floors. The normally closed contact of the magnetic control transfer switch is connected with the alarm circuit.

Description

The detecting device that a kind of hoistway door is improper when opening

The utility model relates to a kind of detecting device when being used for that hoistway door is improper to be opened, be used to trigger various warning circuits and equipment, remind the party concerned to take care, prevent to crash into hoistway.

With regard to elevator, open under the effect of operating personal under gate drives or in car under the door normal circumstances of the Room, lift car is at this layer in some cases, Room door be opening or be opened, at this moment to pay special attention to cause injures and deaths in order to avoid crash into hoistway.Applied for patent of invention " detecting device and method of inspection thereof when the layer Room, non-lift car place door is opened; application number: its testing goal can be realized and reach to 00112131.6 (being same contriver and applicant), but this patented technology can not provide when hoistway door is improper to be opened the detection to door place, this layer Room layer position signal.

The purpose of this utility model is to provide a kind of detecting device at above-mentioned deficiency, can provide the detection signal of this floor position when opening in that Room door is improper, can make relevant warning circuit and equipment targetedly the party concerned who is in this layer be sent warning.

The detecting device that hoistway door is improper when opening is to adopt following scheme to realize:

The utility model detecting device 1. is put the magnetic control change-over swith CKZ that installation one has three lead-in wires in every fit right position, every layer of Room of elevator;

2. on every layer Room door, near near the position of magnetic control change-over swith CKZ that door pocket is installed a pair of permanent magnet NS is installed, appended permanent magnet NS can be to this magnetic switch CKZ effect when adjusting its position and making it work as Room door closed contact, and its contacts status is reliably changed;

3. at every layer of lading door dill one side correct position one magnetic switch CK is installed, the lead-in wire of this magnetic switch be installed in magnetic control change-over swith CKZ that Room every puts and often open the group contact leads and be in parallel;

4. at car sill, near position magnetic switch one side of installing corresponding to lading door dill, a pair of permanent magnet NS is installed, and its spacing is slightly wideer than magnetic switch length, and magnetic switch can receive this a pair of permanent magnet field effect and reliable closed, conducting when making its Elevator landing.

5. all are cascaded as the method magnetic switch in parallel by lead and other floors with magnetic switch CKZ, the CK two ends in parallel good on this layer Room every cover and the lading door dill, constitute a path, are connected with warning circuit by 2 of A, B;

6. the magnetic control change-over swith normally closed contact group that puts of every layer of Room every can insert corresponding warning circuit control end, just can reach near the improper just purpose of position warning which layer of opening of which layer Room door.

The detecting device that Room door is improper when opening, be skillfully constructed, principle is simple, reasonable in design, reliability is high, with low cost, easy for installation, can be independent of the characteristics of lift circuit work, needing only for the express elevator with advance door opening increases a pair of permanent magnet length on the car sill that is attached to.Device and method of the present invention offers warning circuit and can point out the party concerned who is in this layer to take care, and prevents to be strayed into the casualty accident of hoistway, has also reduced the influence to other floor personnel during warning.

Below with reference to accompanying drawing the utility model is described further.

The detecting device electrical schematic diagram of Fig. 1 when to be that hoistway door is improper open.With reference to accompanying drawing 1, at hoistway door door pocket correct position magnetic control change-over swith CKZ is installed, in Room door one side, near near position this magnetic control change-over swith a pair of permanent magnet NS is installed, at the lading door dill correct position one magnetic switch CK is installed, and with the magnetic control change-over swith CKZ that is installed in Room every cover in often open the group contact and be in parallel by line, in car sill one side, corresponding to the magnetic switch CK position that lading door dill is installed a pair of permanent magnet is installed, the magnetic field that makes its magnetic switch when the lift car flat bed can be subjected to this a pair of permanent magnet acts on and reliable closure, conducting is in series the magnetic switch of other all floors with identical method installation then.When the normal flat bed of elevator, when opening the door, at first the permanent magnet on the car sill works to the magnetic switch CK on the lading door dill and makes its closure, conducting, though this moment, magnetic control change-over swith CKZ open contact moved because of opening the door of Room door, can not get the effect of permanent magnet field appended on the door of the Room and be when open circuit, but electric current still can make A, B two ends be path by the contact that is installed in magnetic switch CK closure in parallel on the lading door dill, and the warning circuit that connects is not in addition worked.

Principle of work: be cascaded with the magnetic switch in parallel that other floors install in the same way again after the magnetic switch CK that installs on magnetic control change-over swith CKZ open contact that Room every puts installation and lading door dill is in parallel, constitute a loop A, B.As shown in Figure 1, if every layer of Room door all closed when putting in place, its every layer Room every puts that the magnetic control change-over swith CKZ open contact that is installed in series is subjected to the magnetic field effect of the appended permanent magnet of floor Room door separately and closed, is channel status between A, B like this.If car arrives any one deck flat bed and when opening the door, though move the permanent magnet position on the door of the Room thereupon, the magnetic control change-over swith CKZ open contact that is installed on the door pocket can not get the magnetic field effect, the contact open circuit, but because of the magnetic switch CK that is installed on the lading door dill closed because of the appended a pair of permanent magnet field effect of car sill, electric current still can be by constituting the loop, A, conducting between B, therefore no matter Room door is closure or is opening during the normal flat bed of elevator, as long as other layers Room door of the non-place of car layer is opened, magnetic switch CK on magnetic control change-over swith CKZ open contact and the lading door dill will open a way, and warning circuit and device detect A, B two ends open circuit and the magnetic control change-over swith CKZ normally closed contact and the A that are in this layer, " B " in the B two ends sends alarm sound when communicating near this layer.

Claims

The detecting device that a kind of hoistway door is improper when opening is characterized in that (1), at every layer of Room of elevator every cover the magnetic control change-over swith with three lines is installed; (2), near near the Room door the magnetic control change-over swith, a pair of permanent magnet is installed, adjust when the position makes it work as Room door closed contact and can its contacts status reliably be changed this magnetic control change-over swith effect; (3), one magnetic switch is installed, this switch ends lead-in wire is connected in parallel with the open contact group that is installed in the magnetic control change-over swith that Room every puts in every layer of lading door dill one side; (4), near the magnetic switch that car sill one side is installed corresponding to lading door dill, a pair of permanent magnet is installed, make its magnetic switch when the lift car flat bed be subjected to this to magnetic field effect of permanent magnet and reliable closed, conducting; (5), two magnetic switchs in parallel that two good magnetic switchs in parallel are installed in the same way by lead and upper and lower other floors are cascaded, constitute a loop; (6), be installed in the magnetic control change-over swith normally closed contact winding warning circuit that Room every puts.