CN105384018A - Double-contact detection system for domestic lift door - Google Patents
Double-contact detection system for domestic lift door Download PDFInfo
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- CN105384018A CN105384018A CN201510831073.XA CN201510831073A CN105384018A CN 105384018 A CN105384018 A CN 105384018A CN 201510831073 A CN201510831073 A CN 201510831073A CN 105384018 A CN105384018 A CN 105384018A
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- door
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- lock
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Abstract
The invention relates to a double-contact detection system for a domestic lift door. The double-contact detection system is provided with a door lock safety loop. The door lock safety loop comprises a safety relay and a safety protection device connected with the safety relay in series. A plurality of door linking locks are connected to the safety relay in parallel. The door linking locks are connected with a door lock relay in series. A first contact capable of conducting the door lock safety loop is arranged between the door lock relay and the safety relay. A normally-open contact switch is arranged between the door linking locks and the door lock relay and is connected with a plurality of door spring bolts in series. The door spring bolts are further connected with a second contact in series, wherein the second contact can detect the opening and closing state of the spring bolts. By means of the double-contact detection system for the domestic lift door, the second contact for monitoring the states of the door linking locks and the door spring bolts through a PLC is added in the safety loop of a single-contact detection system, and therefore it is effectively ensured that under the condition that a lift can be normally started only when a lift door lock and a lock hook are completely closed, and safety accidents are avoided.
Description
technical field:
The present invention relates to the double-contact checking system on home lift door lock.
background technology:
Door lock of elevator is contained on layer door or gate, play locking effect, door lock mainly contains lock hook, stopper, force application element, roller, to unblank trolley, electrical safety gets an electric shock and triangulation chain composition, lock hook, stopper composition locking effect, pin door not to be opened, depth of engagement need reach more than 7mm, more than endurance 1000N, force application element is in order to the door lock that automatically resets after enabling, that reset attachment was (when it lost efficacy, gravity also must not open door lock), roller and trolley of unblanking are unblanked use, when elevator arrives at a station, door motor is by a series of mechanical drive, final door knife-band moves roller and trolley of unblanking opens door lock, and pull door to open, electrical safety contact is checking lock hook, whether stopper engagement reaches more than 7mm's, once electrical safety contact disconnects, elevator must not run, triangulation chain in order to open layer door under abnormal condition, i.e. that leg-of-mutton lock on layer door, layman must not use, and the door lock that most elevator uses in the market all adopts single pair of contact checking system, when occurring electrical interlocks intercommunication, when latch hook does not all close, elevator door can be caused to press from both sides the safety misadventure of people.
summary of the invention:
Technical matters to be solved by this invention is, provides that a kind of elevator could the normal double-contact checking system started when elevator door interlock and lock hook can be made completely closed.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of home lift door double-contact checking system, there is door lock safety return circuit, the safety guard that described door lock safety return circuit comprises safety relay and connects with safety relay, described safety relay is parallel with Room every interlocking of multiple floor, described gate interlock is connected a door lock relay, the first contact of energy conducting door lock safety return circuit is provided with between described door lock relay and safety relay, an open contact switch is provided with between described gate interlock and door lock relay, described open contact switch series is connected to multiple tongue locks, described door tongue lock is also connected in series the second contact of an energy detecting gate tongue lock folding condition.
As preferably, described second contact interlocked by PLC monitoring door and door tongue lock folding condition and the break-make of open contact switch can be controlled.
As preferably, described safety guard comprises that machine room suddenly stops, smallest limit, pit suddenly stop, limes superiors, oil cylinder are spacing, car suddenly stops, sedan-chair top is suddenly stopped, safety tongs.
As preferably, described safety guard is connected to phase sequence relay.
Compared with prior art, usefulness of the present invention is: this home lift door double-contact checking system is adopted to increase in the safety return circuit of single contact checking system and to be interlocked by PLC monitoring door and the second contact of door tongue lock status, thus effectively ensure that door lock of elevator and lock hook are when completely closed, elevator could normally start, and avoids the generation of safety misadventure.
accompanying drawing illustrates:
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is the structural representation of safety return circuit of the present invention;
In figure: 1, safety relay 2, gate interlock 3, door lock relay 4, first contact 5, open contact beginning 6, door tongue lock the 7, second contact 8, machine room anxious stop 9, smallest limit 10, pit suddenly stop 11, limes superiors 12, oil cylinder are spacing 13, car suddenly stops 14, sedan-chair top suddenly stops 15, safety tongs 16, phase sequence relay
detailed description of the invention:
Describe the present invention below in conjunction with the drawings and the specific embodiments:
A kind of home lift door double-contact checking system, as shown in Figure 1, there is door lock safety return circuit, the safety guard that described door lock safety return circuit comprises safety relay 1 and connects with safety relay 1, described safety relay 1 is parallel with Room every interlocking 2 of multiple floor, a described gate interlock 2 door lock relay 3 of connecting is connected in series, the first contact 4 of energy conducting door lock safety return circuit is provided with between described door lock relay 3 and safety relay 1, an open contact switch 5 is provided with between described gate interlock 2 and door lock relay 3, described open contact switch 5 is serially connected with locks 6 with multiple tongues, described door tongue lock 6 is also serially connected with the second contact 7 that an energy detecting gate tongue locks 6 folding conditions, described second contact 7 is by the state of the folding of PLC monitoring door interlocking 2 and door tongue lock 6 and can control the break-make of open contact switch 5, described safety guard comprises machine room and suddenly stops 8, smallest limit 9, pit is anxious stops 10, limes superiors 11, oil cylinder spacing 12, car is anxious stops 13, sedan-chair top is anxious stops 14, safety tongs 15, described safety guard is also connected with phase sequence relay 16.When practical application, during the abnormal startup optimization of elevator, described open contact switch 5 is opening, now, gate interlock 2 and door tongue lock 6 are also in not closed state, after gate interlock 2 and door tongue lock 6 are all closed, and by the second contact 7 on elevator PLC monitor gate interlock 2 and door tongue lock 6 be in complete closure state time, open contact switch 5 cuts out, and then loop conducting, thus make the normal startup optimization of elevator, if and gate interlock 2 or door tongue lock 6 because of fault can not be completely closed, then by the second contact 7 monitor gate interlock 2 and door tongue lock be in not completely closure state time, open contact switch 5 can not cut out, thus safety return circuit also can not conducting, now elevator can not normally start, thus the generation of safety misadventure is avoided.
This home lift door double-contact checking system is adopted and in the loop of single contact checking system, to increase by one to be interlocked by PLC monitoring door and the second contact of door tongue lock status, thus effectively ensure that door lock of elevator and lock hook are when completely closed, elevator could normally start, avoid the generation of safety misadventure, convenient and practical, cost of manufacture is low, is applicable to applying.
It is emphasized that: be only preferred embodiment of the present invention above, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. a home lift door double-contact checking system, there is door lock safety return circuit, the safety guard that described door lock safety return circuit comprises safety relay (1) and connects with safety relay (1), described safety relay (1) is parallel with Room every interlocking (2) of multiple floor, described gate interlock (2) is connected a door lock relay (3), first contact (4) of energy conducting door lock safety return circuit is provided with between described door lock relay (3) and safety relay (1), it is characterized in that: between described gate interlock (2) and door lock relay (3), be provided with an open contact switch (5), described open contact switch (5) is serially connected with multiple tongues lock (6), described door tongue lock (6) is also connected in series second contact (7) of energy detecting gate tongue lock (6) folding condition.
2. home lift door double-contact checking system according to claim 1, is characterized in that: described second contact (7) is by the folding condition of PLC monitoring door interlocking (2) and door tongue lock (6) and can control the break-make of open contact switch (5).
3. home lift door double-contact checking system according to claim 1, is characterized in that: described safety guard comprises that machine room is anxious stops that (8), smallest limit (9), pit are anxious stops that (10), limes superiors (11), oil cylinder spacing (12), car suddenly stop (13), sedan-chair top is anxious stops (14), safety tongs (15).
4. home lift door double-contact checking system according to claim 1, is characterized in that: described safety guard is serially connected with phase sequence relay (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510831073.XA CN105384018A (en) | 2015-11-25 | 2015-11-25 | Double-contact detection system for domestic lift door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510831073.XA CN105384018A (en) | 2015-11-25 | 2015-11-25 | Double-contact detection system for domestic lift door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105384018A true CN105384018A (en) | 2016-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510831073.XA Pending CN105384018A (en) | 2015-11-25 | 2015-11-25 | Double-contact detection system for domestic lift door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105384018A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108190703A (en) * | 2018-02-09 | 2018-06-22 | 广东亚太西奥电梯有限公司 | A kind of door lock of elevator security system |
| CN111295350A (en) * | 2017-10-31 | 2020-06-16 | 因温特奥股份公司 | Safety monitoring device for monitoring safety-critical states in a people conveyor and method for operating such a safety monitoring device |
| CN112125081A (en) * | 2020-08-14 | 2020-12-25 | 汕头大学 | Automatic detection method and system for elevator landing door |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5467946A (en) * | 1977-11-09 | 1979-05-31 | Mitsubishi Electric Corp | Elevator door |
| JPH1121042A (en) * | 1997-07-01 | 1999-01-26 | Mitsubishi Denki Bill Techno Service Kk | Dumbwaiter operating device |
| CN202186817U (en) * | 2011-06-02 | 2012-04-11 | 恒达富士电梯有限公司 | Elevator door lock safety return circuit |
| CN202492253U (en) * | 2011-11-18 | 2012-10-17 | 西子联合控股有限公司 | Elevator storey door state monitoring device |
| CN202643058U (en) * | 2012-05-15 | 2013-01-02 | 北京索德电气工业有限公司 | Safety circuit for door pre-opening and floor re-reaching functions of elevator |
| CN204737529U (en) * | 2015-06-30 | 2015-11-04 | 苏州汇川技术有限公司 | Detection circuitry of elevator lock |
| CN205099133U (en) * | 2015-11-25 | 2016-03-23 | 苏州汾湖电梯科技有限公司 | Home use elevator door double -contact detecting system |
-
2015
- 2015-11-25 CN CN201510831073.XA patent/CN105384018A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5467946A (en) * | 1977-11-09 | 1979-05-31 | Mitsubishi Electric Corp | Elevator door |
| JPH1121042A (en) * | 1997-07-01 | 1999-01-26 | Mitsubishi Denki Bill Techno Service Kk | Dumbwaiter operating device |
| CN202186817U (en) * | 2011-06-02 | 2012-04-11 | 恒达富士电梯有限公司 | Elevator door lock safety return circuit |
| CN202492253U (en) * | 2011-11-18 | 2012-10-17 | 西子联合控股有限公司 | Elevator storey door state monitoring device |
| CN202643058U (en) * | 2012-05-15 | 2013-01-02 | 北京索德电气工业有限公司 | Safety circuit for door pre-opening and floor re-reaching functions of elevator |
| CN204737529U (en) * | 2015-06-30 | 2015-11-04 | 苏州汇川技术有限公司 | Detection circuitry of elevator lock |
| CN205099133U (en) * | 2015-11-25 | 2016-03-23 | 苏州汾湖电梯科技有限公司 | Home use elevator door double -contact detecting system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111295350A (en) * | 2017-10-31 | 2020-06-16 | 因温特奥股份公司 | Safety monitoring device for monitoring safety-critical states in a people conveyor and method for operating such a safety monitoring device |
| CN108190703A (en) * | 2018-02-09 | 2018-06-22 | 广东亚太西奥电梯有限公司 | A kind of door lock of elevator security system |
| CN112125081A (en) * | 2020-08-14 | 2020-12-25 | 汕头大学 | Automatic detection method and system for elevator landing door |
| CN112125081B (en) * | 2020-08-14 | 2022-04-26 | 汕头大学 | Automatic detection method and system for elevator landing door |
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Application publication date: 20160309 |