CN102424317B - Door interlock short-circuit protection loop for elevator - Google Patents
Door interlock short-circuit protection loop for elevator Download PDFInfo
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- CN102424317B CN102424317B CN201110237843XA CN201110237843A CN102424317B CN 102424317 B CN102424317 B CN 102424317B CN 201110237843X A CN201110237843X A CN 201110237843XA CN 201110237843 A CN201110237843 A CN 201110237843A CN 102424317 B CN102424317 B CN 102424317B
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Abstract
The invention provides a door interlock short-circuit protection loop for an elevator. The door interlock short-circuit protection loop comprises a door interlock relay, a machine room overhauling switch unit, a door interlock loop, a short-circuit unit and an auxiliary relay unit, wherein the machine room overhauling switch unit comprises a first switch and a second switch; and the auxiliary relay unit comprises an auxiliary relay and an auxiliary relay switch. In the invention, a way for forbidding the elevator to run under the condition that a short-circuit line of the door interlock loop is not detached is adopted, so that equipment damage or personnel hurt caused by door opening and carriage of the elevator due to direct short circuit of the door interlock loop is avoided.
Description
Technical field
The present invention relates to the elevator safety field, relate in particular to a kind of door interlock short-circuit protection loop for elevator.
Background technology
After elevator debugging initial stage or the normal use of elevator, gate interlock hinders disconnection for some reason, and for convenient for maintaining, the on-the-spot installation and the common directly short circuit gate interlock loop of repair and maintenance personnel moved elevator under a non-security state; Like this, if, after fault is got rid of or safeguarded end, when " maintenance " turns " automatically " state, forget the shorting stub of dismantling, just cause possibly the door-opened elevator operation, cause the injury to equipment or personnel.
Summary of the invention
The invention provides a kind of door interlock short-circuit protection loop for elevator, to avoid, because of direct short circuit gate interlock loop, causing the door-opened elevator mule carriage, cause the event of device damage or personnel's injury to occur.
For addressing the above problem, the present invention takes following technical scheme:
A kind of door interlock short-circuit protection loop for elevator, comprise the gate interlock relay, the machine room inspection switch element, comprise the first switch and second switch, the gate interlock loop, the one end is connected with power supply, and its other end is connected with an end of gate interlock relay by described second switch, and the other end of described gate interlock relay is connected with power supply, short unit, the one end is connected with an end in gate interlock loop, the relief relay unit, comprise relief relay and relief relay switch, one end of described relief relay is connected with the other end of short unit, the other end of described relief relay is connected with power supply, described relief relay is for controlling the closed of relief relay switch or disconnecting, the other end of described short unit is connected with an end of relief relay switch and second switch by the first switch, the other end of described relief relay switch and second switch is connected with an end of gate interlock relay, control the operation of elevator and stop by the break-make of described gate interlock relay.
Described gate interlock loop comprises gate lock and the Room door lock of serial connection.
Described door interlock short-circuit protection loop for elevator also comprises safety return circuit, and an end in described gate interlock loop is connected with power supply by safety return circuit.
Described safety return circuit comprises the safety switch of some serial connections.
Beneficial effect of the present invention is: when the elevator door interlock loop hinders disconnection for some reason, cause the gate interlock relay electric-loss, thereby while making elevator out of service, the repair and maintenance personnel can be according to operation instructions, the gate interlock protection short-circuited terminal that special sign is arranged by on-the-spot short circuit, being about to the short unit two ends connects with wire, realize " maintenance " operation, remove shorting stub after trouble-shooting, recover elevator " automatically " operation, if but because of maloperation or forget the shorting stub of dismantling, make described gate interlock loop still keep the short circuit state, after elevator recovers " automatically " state, the machine room inspection switch is all closed, because described relief relay is being controlled the closed of described relief relay switch or disconnecting, therefore, in short circuit gate interlock loop, when soon the short unit two ends connect with wire, relief relay is in obtaining electric conducting state, controlling described relief relay switch disconnects, make described gate interlock relay and loop disconnect, cause the gate interlock relay dead electricity that remains unchanged, thereby make elevator out of service, forcibly remind professional repair and maintenance personnel to remove shorting stub, guarantee elevator safe operation under " automatically " state.This loop structure is simple, is easy to set up, and cost is low, has but guaranteed to a great extent equipment and personnel's safety.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Gate interlock short-circuit protection loop principle of design figure when the machine room inspection switch that Fig. 1 provides for the embodiment of the present invention is allocated to " maintenance " position.
Gate interlock short-circuit protection loop constitution diagram when the machine room inspection switch that Fig. 2 provides for the embodiment of the present invention is allocated to " automatically " position.
Gate interlock short-circuit protection loop constitution diagram when the machine room inspection switch that Fig. 3 provides for the embodiment of the present invention is allocated to " maintenance " position from " automatically ".
Fig. 4 is allocated to " maintenance " position for the machine room inspection switch that the embodiment of the present invention provides from " automatically ", and the gate interlock short-circuit protection loop constitution diagram during by gate interlock loop short circuit.
Fig. 5 is allocated to " automatically " position for the machine room inspection switch that the embodiment of the present invention provides from " maintenance ", and the gate interlock loop gate interlock short-circuit protection loop constitution diagram when the short circuit state still.
Fig. 6 is allocated to " automatically " position for the machine room inspection switch that the embodiment of the present invention provides from " maintenance ", and the gate interlock short-circuit protection loop constitution diagram after shorting stub is removed.
In Fig. 1 to Fig. 6,
PL, PN: power supply;
SC: safety return circuit;
LC: gate interlock loop;
LA: gate lock;
LB: Room door lock;
JX1: the first switch;
JX2: second switch;
SM: short unit;
SMA, SMB: short unit terminals;
KJX: relief relay unit;
KF: relief relay;
K: relief relay switch;
KM: gate interlock relay.
The specific embodiment
Door interlock short-circuit protection loop for elevator the present invention proposed below in conjunction with the drawings and specific embodiments is described in further detail.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the purpose of the aid illustration embodiment of the present invention lucidly.
Core concept of the present invention is, a kind of door interlock short-circuit protection loop for elevator is provided, when the elevator door interlock loop hinders disconnection for some reason, cause the gate interlock relay electric-loss, thereby while making elevator out of service, the repair and maintenance personnel can be according to operation instructions, the gate interlock protection short-circuited terminal that special sign is arranged by on-the-spot short circuit, being about to the short unit two ends connects with wire, realize " maintenance " operation, remove shorting stub after trouble-shooting, recover elevator " automatically " operation, if but because of maloperation or forget the shorting stub of dismantling, make described gate interlock loop still keep the short circuit state, after elevator recovers " automatically " state, the machine room inspection switch is all closed, because described relief relay is being controlled the closed of described relief relay switch or disconnecting, therefore, in short circuit gate interlock loop, when soon the short unit two ends connect with wire, relief relay is in obtaining electric conducting state, controlling described relief relay switch disconnects, make described gate interlock relay and loop disconnect, cause the gate interlock relay dead electricity that remains unchanged, thereby make elevator out of service, forcibly remind professional repair and maintenance personnel to remove shorting stub, guarantee elevator safe operation under " automatically " state.
Gate interlock short-circuit protection loop principle of design figure when the machine room inspection switch that Fig. 1 provides for the embodiment of the present invention is allocated to " maintenance " position.Described door interlock short-circuit protection loop for elevator comprises:
Gate interlock relay K M;
The machine room inspection switch element, comprise the first switch JX1 and second switch JX2;
Gate interlock loop LC, the one end is connected with the PL end of power supply, and its other end is connected with the end of gate interlock relay K M by described second switch JX2, and the other end of described gate interlock relay K M is connected with the PN of power supply end;
Short unit SM, one end SMA is connected with the end of gate interlock loop LC;
Relief relay unit KJX, comprise relief relay KF and relief relay K switch, the end of described relief relay KF is connected with the other end SMB of short unit SM, the other end of described relief relay KF is connected with the PN of power supply end, described relief relay KF is for controlling the closed of relief relay K switch or disconnecting, the other end SMB of described short unit SM is connected with the end of relief relay K switch and second switch JX2 by the first switch JX1, the other end of described relief relay K switch and second switch JX2 is connected with the end of gate interlock relay K M, control the operation of elevator and stop by the break-make of described gate interlock relay K M.
When the elevator door interlock loop, LC hinders disconnection for some reason, cause gate interlock relay K M dead electricity, thereby while making elevator out of service, the repair and maintenance personnel can be according to operation instructions, gate interlock protection short unit terminals SMA and SMB that special sign is arranged by on-the-spot short circuit, realize " maintenance " operation, remove shorting stub after trouble-shooting, recover elevator " automatically " operation, if but because of maloperation or forget the shorting stub of dismantling, make described gate interlock loop LC still keep the short circuit state, after elevator recovers " automatically " state, the first switch JX1 of machine room inspection switch element and second switch JX2 are all closed, because described relief relay KF is controlling the closed of described relief relay K switch or disconnecting, therefore, at short circuit gate interlock loop LC, when soon short unit SM terminals SMA is connected with wire with SMB, relief relay KF is in obtaining electric conducting state, controlling described relief relay K switch disconnects, make described gate interlock relay K M and loop disconnect, cause the gate interlock relay K M dead electricity that remains unchanged, thereby make elevator out of service, forcibly remind professional repair and maintenance personnel to remove shorting stub, guarantee elevator safe operation under " automatically " state, this loop structure is simple, be easy to set up, cost is low, but guaranteed to a great extent equipment and personnel's safety.
Concrete, described gate interlock loop LC comprises gate lock LA and the Room door lock LB of serial connection, they are responsible for controlling the switch of gate and Room door.
Concrete, described door interlock short-circuit protection loop for elevator also comprises safety return circuit SC, the end of described gate interlock loop LC is connected with the PL end of power supply by safety return circuit SC.
Concrete, described safety return circuit SC comprises the safety switch of some serial connections, each safety switch plays certain control action, for example, limited location switch, hypervelocity stopcock etc.
Describe the function implementation procedure of door interlock short-circuit protection loop for elevator of the present invention in detail below in conjunction with Fig. 2 to Fig. 6.
Please refer to Fig. 2, its machine room inspection switch provided for the embodiment of the present invention is allocated to " automatically " position, and the gate interlock short-circuit protection loop constitution diagram during et out of order of gate interlock loop.At elevator, when " automatically " state moves, gate interlock loop LC hinders disconnection for some reason, and the terminals SMA of short unit SM and SMB be short circuit not, and whole loop disconnects, gate interlock relay K M dead electricity, and elevator is out of service.
Please refer to Fig. 3, gate interlock short-circuit protection loop constitution diagram when its machine room inspection switch provided for the embodiment of the present invention is allocated to " maintenance " position from " automatically ".When elevator turns " maintenance " state from " automatically " state, the first switch JX1 of machine room inspection switch element and second switch JX2 are all closed, gate interlock loop LC still disconnects, the terminals SMA of short unit SM and SMB be short circuit not, whole loop disconnects, gate interlock relay K M dead electricity, elevator is out of service.
Please refer to Fig. 4, it is allocated to " maintenance " position for the machine room inspection switch that the embodiment of the present invention provides from " automatically ", and the gate interlock short-circuit protection loop constitution diagram during by gate interlock loop short circuit.At elevator from " automatically " state turns " maintenance " state, the first switch JX1 and second switch JX2 are all closed, gate interlock loop LC still disconnects, the terminals SMA of short unit SM and SMB short circuit, loop is connected, gate interlock relay K M obtains electric, and elevator can " overhaul " operation, is keeped in repair.
Please refer to Fig. 5, it is allocated to " automatically " position for the machine room inspection switch that the embodiment of the present invention provides from " maintenance ", and the gate interlock loop gate interlock short-circuit protection loop constitution diagram when the short circuit state still.After elevator is fixed, while from " maintenance " state, turning " automatically " state, the maintainer forgets the terminals SMA of dismounting short unit SM and the shorting stub of SMB, even gate interlock loop LC connects, the elevator automatic door-closing, but because second switch JX2 and relief relay K switch are all off-state, whole loop disconnects, therefore gate interlock relay K M dead electricity still, elevator still can't recover " automatically " and move.
Please refer to Fig. 6, it is allocated to " automatically " position for the machine room inspection switch that the embodiment of the present invention provides from " maintenance ", and the gate interlock short-circuit protection loop constitution diagram after shorting stub is removed.After elevator is fixed, while from " maintenance " state, turning " automatically " state, the maintainer through above-mentioned can't start the prompting of elevator after, remove the terminals SMA of short unit SM and the shorting stub of SMB, the relief relay K switch is closure state, and loop is connected, gate interlock loop LC connects, the elevator automatic door-closing, gate interlock relay K M obtains electric, and elevator recovers " automatically " operation.
In sum, the invention provides a kind of door interlock short-circuit protection loop for elevator, when the elevator door interlock loop hinders disconnection for some reason, cause the gate interlock relay electric-loss, thereby while making elevator out of service, the repair and maintenance personnel can be according to operation instructions, the gate interlock protection short-circuited terminal that special sign is arranged by on-the-spot short circuit, being about to the short unit two ends connects with wire, realize " maintenance " operation, remove shorting stub after trouble-shooting, recover elevator " automatically " operation, if but because of maloperation or forget the shorting stub of dismantling, make described gate interlock loop still keep the short circuit state, after elevator recovers " automatically " state, the machine room inspection switch is all closed, because described relief relay is being controlled the closed of described relief relay switch or disconnecting, therefore, in short circuit gate interlock loop, when soon the short unit two ends connect with wire, relief relay is in obtaining electric conducting state, controlling described relief relay switch disconnects, make described gate interlock relay and loop disconnect, cause the gate interlock relay dead electricity that remains unchanged, thereby make elevator out of service, forcibly remind professional repair and maintenance personnel to remove shorting stub, guarantee elevator safe operation under " automatically " state.This loop structure is simple, is easy to set up, and cost is low, has but guaranteed to a great extent equipment and personnel's safety.
Obviously, those skilled in the art can carry out various changes and distortion and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (4)
1. a door interlock short-circuit protection loop for elevator comprises:
The gate interlock relay;
The machine room inspection switch element, comprise the first switch and second switch;
The gate interlock loop, the one end is connected with power supply, and its other end is connected with an end of gate interlock relay by described second switch, and the other end of described gate interlock relay is connected with power supply;
Short unit, the one end is connected with an end in gate interlock loop;
The relief relay unit, comprise relief relay and relief relay switch, one end of described relief relay is connected with the other end of short unit, the other end of described relief relay is connected with power supply, described relief relay is for controlling the closed of relief relay switch or disconnecting, the other end of described short unit is connected with an end of relief relay switch and second switch by the first switch, the other end of described relief relay switch and second switch is connected with an end of gate interlock relay, control the operation of elevator and stop by the break-make of described gate interlock relay.
2. door interlock short-circuit protection loop for elevator according to claim 1, is characterized in that, described gate interlock loop comprises gate lock and the Room door lock of serial connection.
3. door interlock short-circuit protection loop for elevator according to claim 1 and 2, is characterized in that, also comprises safety return circuit, and an end in described gate interlock loop is connected with power supply by safety return circuit.
4. door interlock short-circuit protection loop for elevator according to claim 3, is characterized in that, described safety return circuit comprises the safety switch of some serial connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110237843XA CN102424317B (en) | 2011-08-18 | 2011-08-18 | Door interlock short-circuit protection loop for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110237843XA CN102424317B (en) | 2011-08-18 | 2011-08-18 | Door interlock short-circuit protection loop for elevator |
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| Publication Number | Publication Date |
|---|---|
| CN102424317A CN102424317A (en) | 2012-04-25 |
| CN102424317B true CN102424317B (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110237843XA Active CN102424317B (en) | 2011-08-18 | 2011-08-18 | Door interlock short-circuit protection loop for elevator |
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| CN (1) | CN102424317B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434905B (en) * | 2013-07-23 | 2016-04-20 | 三洋电梯(珠海)有限公司 | A kind of overhauling elevator door lock compensates fender guard |
| CN103523642B (en) * | 2013-11-01 | 2015-08-26 | 苏州德奥电梯有限公司 | A kind of quick short circuit system of door lock of elevator and short circuit method |
| WO2015090809A1 (en) * | 2013-12-18 | 2015-06-25 | Inventio Ag | Safety system for an elevator system |
| CN104714430A (en) * | 2015-04-14 | 2015-06-17 | 汪水仿 | Break contact of remote short-circuit series circuit |
| CN106698124B (en) * | 2015-08-14 | 2019-11-22 | 蔡海英 | Elevator with safety interlock |
| CN106185570B (en) * | 2016-08-26 | 2018-03-09 | 上海新时达电气股份有限公司 | The detection means of door lock of elevator short circuit |
| CN107055239B (en) * | 2017-02-28 | 2018-12-04 | 深圳市海浦蒙特科技有限公司 | Door lock of elevator detection method and system |
| CN110759198B (en) * | 2019-09-30 | 2021-11-19 | 苏州汇川技术有限公司 | Elevator door lock switch short circuit detection method, system, equipment and storage medium |
| JP6939868B2 (en) * | 2019-11-05 | 2021-09-22 | ダイキン工業株式会社 | Air conditioner |
| CN113247727B (en) * | 2021-04-15 | 2023-06-13 | 上海新时达电气股份有限公司 | Elevator door loop fault detection device and detection method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2181489Y (en) * | 1993-12-02 | 1994-11-02 | 陈建国 | Elevator door safety interlocking protector |
| CN1401555A (en) * | 2002-07-29 | 2003-03-12 | 张广兴 | Dropping- and shearing-preventing elevator safety door lock controlling system |
| CN2568609Y (en) * | 2002-07-29 | 2003-08-27 | 张广兴 | Anti-faling, anti-shearing elevator door safety lock |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5483255A (en) * | 1977-12-14 | 1979-07-03 | Mitsubishi Electric Corp | Safety device for elevator cage door opening and closing motor |
| JPH0680363A (en) * | 1992-09-03 | 1994-03-22 | Hitachi Building Syst Eng & Service Co Ltd | Car door lock device of elevator |
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2011
- 2011-08-18 CN CN201110237843XA patent/CN102424317B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2181489Y (en) * | 1993-12-02 | 1994-11-02 | 陈建国 | Elevator door safety interlocking protector |
| CN1401555A (en) * | 2002-07-29 | 2003-03-12 | 张广兴 | Dropping- and shearing-preventing elevator safety door lock controlling system |
| CN2568609Y (en) * | 2002-07-29 | 2003-08-27 | 张广兴 | Anti-faling, anti-shearing elevator door safety lock |
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| Publication number | Publication date |
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| CN102424317A (en) | 2012-04-25 |
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Address after: 215000 No. 368, Dongrong Road, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Tongyou Elevator Co.,Ltd. Address before: 215313 No. 3, Caimao Road, Luyang Town, Kunshan City, Jiangsu Province, Suzhou City, Jiangsu Province Patentee before: KUNSHAN KOYO ELEVATOR Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Elevator door interlocking short circuit protection circuit Effective date of registration: 20230818 Granted publication date: 20131211 Pledgee: Suzhou Trust Co.,Ltd. Pledgor: Tongyou Elevator Co.,Ltd. Registration number: Y2023980052735 |