CN202988462U - Protective device of elevator - Google Patents
Protective device of elevator Download PDFInfo
- Publication number
- CN202988462U CN202988462U CN 201220660871 CN201220660871U CN202988462U CN 202988462 U CN202988462 U CN 202988462U CN 201220660871 CN201220660871 CN 201220660871 CN 201220660871 U CN201220660871 U CN 201220660871U CN 202988462 U CN202988462 U CN 202988462U
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- CN
- China
- Prior art keywords
- elevator
- control board
- main control
- power supply
- real time
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a protective device of an elevator. The protective device of the elevator additionally is provided with a speed measuring sensor. Judgments that abnormally shifting of the lift car is caused by the fact that a brake is opened accidently when the elevator is over-speed and reversed or the lift car opens a door or stops can be achieved through a main control panel of the elevator. At the same time wrong signals can be output by the main control panel of the elevator, and a brake power supply and a main contactor power supply are turned off through a protective circuit, and the elevator stops in time, and safe accidents can be avoided happening. The protective device of the elevator is capable of monitoring shifting states of the lift car in real time and eliminating brought dangers that when the elevator opens the door at the door area, the brake gets electricity accidently. The protective device of the elevator further is capable of providing references to working states of an encoder, and the using safety of the elevator can be improved.
Description
Technical field
The utility model relates to a kind of elevator protection device.
Background technology
In prior art, elevator is to carry out the measurement of real-world operation speed and service direction by coder, single elevator speed that only obtains by coder and service direction exceed the speed limit or the judgement that reverses is inaccurate sometimes, may cause safety misadventure.
Summary of the invention
The purpose of this utility model is to provide a kind of elevator protection device that tachogenerator additionally is set; wherein elevator main control board comes computational analysis to obtain elevator real-world operation speed and service direction by the impulse singla of tachogenerator; thereby exceed the speed limit, the judgement of reverse or the improper movement of car; increase the safety of elevator, also provide reference to the result of a measurement of coder simultaneously.
for achieving the above object, the technical solution adopted in the utility model is: a kind of elevator protection device, the tachogenerator that comprises the impulse singla that can obtain to reflect elevator real time execution speed and service direction, being electrically connected with described tachogenerator to come according to the impulse singla of described tachogenerator computational analysis to obtain the elevator main control board of described elevator real time execution speed and service direction, the elevator real time execution velocity amplitude that obtains in described elevator main control board computational analysis surpass the rated speed of lift value 15% the time, when the service direction that the elevator real time execution direction that perhaps obtains in this elevator main control board computational analysis and this master control board are set is opposite, perhaps be in the flat bed zone at this elevator main control board at lift car and open the door the impulse singla that analyzes described tachogenerator when stopping when changing, the equal output error signal of this elevator main control board, described elevator protection device also comprises can cut off the band-type brake power supply of elevator and the protective circuit of main contactor power supply when described elevator main control board output error signal.
During concrete enforcement, described protective circuit comprises the normally closed contact that is serially connected in the relay in band-type brake electric power loop and main contactor electric power loop, the position that can export described spurious signal on one end of the coil of this relay and described elevator main control board is electrically connected, the other end of this coil is connected with power supply, at described elevator main control board not during the output error signal, the coil of described relay must not be electric, and described normally closed contact remains closed; When described elevator main control board output error signal, the coil of described relay gets electric, and described normally closed contact disconnects, and cuts off described band-type brake power supply and main contactor power supply.
Utilization due to technique scheme; the utility model compared with prior art has following advantages: this elevator protection device; tachogenerator additionally is set; and pass through elevator main control board; when realization is opened the door parking to elevator overspeed, reverse or car, the band-type brake accident is opened the judgement of the improper movement of car that causes, and elevator main control board meeting output error this moment signal cuts off band-type brake power supply and main contactor power supply by protective circuit; in time stop ladder, avoid occuring safety misadventure.This elevator protection device can carry out Real Time Monitoring to the mobile status of car, eliminated elevator band-type brake when Men Qu opens the door unexpected the electric danger that brings, also provide reference to the mode of operation of coder, increase the safety that elevator uses.
Description of drawings
Accompanying drawing 1 is circuit theory schematic diagram of the present utility model.
The specific embodiment
Further set forth structure of the present utility model below in conjunction with accompanying drawing.
Shown in Figure 1; a kind of elevator protection device; comprise tachogenerator 1, elevator main control board 2, protective circuit 4; tachogenerator 1 comprises two sensor units; these two sensor units can obtain A phase pulse signal and the B phase pulse signal of reflection elevator real time execution speed and service direction respectively; tachogenerator 1 is electrically connected on elevator main control board 2; elevator main control board 2 receives A phase pulse signal and B phase pulse signal, carries out computational analysis and obtains elevator real time execution velocity amplitude and service direction.If the elevator real time execution velocity amplitude that elevator main control board 2 computational analysiss obtain surpass the rated speed of lift value 15% the time, show elevator overspeed, elevator main control board 2 can the output error signals; When if the service direction that the elevator real time execution direction that elevator main control board 2 computational analysiss obtain and this master control board 2 are set is opposite (when the direction instruction that the phase sequence of A phase pulse signal, B phase pulse signal and master control board provide is inconsistent), show that reverse has occured in the elevator operation, same master control board 2 meeting output error signals; Setting parking orders at elevator main control board 2 makes lift car be in the flat bed zone to open the door when stopping, if elevator main control board 2 analyzes the impulse singla of tachogenerator 1 when changing, shown that band-type brake is opened when car opens the door parking, the improper movement of car occurred, same elevator main control board 2 can the output error signal.Protective circuit 4 can be cut off band-type brake power supply and the main contactor power supply of elevator after master control board 2 output error signals being detected, stop the ladder protection, avoids having an accident.
In Fig. 1, protective circuit 4 comprises the normally closed contact 7 that is serially connected in the relay in band-type brake electric power loop 6 and main contactor electric power loop 5, position that can the output error signal on one end of the coil 3 of this relay and elevator main control board 2 is electrically connected, the other end of this coil 3 is connected with power supply, at car speed or state when normal, elevator main control board 2 inerrancy signal outputs, the coil 3 of relay must not be electric, normally closed contact 7 remains closed, this moment, band-type brake electric power loop 6 and main contactor electric power loop 5 can conductings, and controlled by master control board 2; When the speed of car or abnormal state, elevator main control board 2 output error signals, the coil 3 of relay electric, normally closed contact 7 disconnects, and cuts off band-type brake power supply and main contactor power supply, makes band-type brake coil Final 8 dead electricity processed, main contactor coil 9 is forced dead electricity, and elevator stops.
This elevator protection device by tachogenerator, protective circuit are set, make elevator main control board to judge the improper movement of hypervelocity, reverse or the car of elevator, and can in time stop ladder, guarantees the elevator Operation safety.This elevator protection device is simple in structure, can carry out Real Time Monitoring to the mobile status of car, eliminated elevator band-type brake when Men Qu opens the door unexpected the electric danger that brings, also provide reference to the mode of operation of coder, increase the safety that elevator uses.
Claims (2)
1. elevator protection device, it is characterized in that: the tachogenerator that comprises the impulse singla that can obtain to reflect elevator real time execution speed and service direction, being electrically connected with described tachogenerator to come according to the impulse singla of described tachogenerator computational analysis to obtain the elevator main control board of described elevator real time execution speed and service direction, the elevator real time execution velocity amplitude that obtains in described elevator main control board computational analysis surpass the rated speed of lift value 15% the time, when the service direction that the elevator real time execution direction that perhaps obtains in this elevator main control board computational analysis and this master control board are set is opposite, perhaps be in the flat bed zone at this elevator main control board at lift car and open the door the impulse singla that analyzes described tachogenerator when stopping when changing, the equal output error signal of this elevator main control board, described elevator protection device also comprises can cut off the band-type brake power supply of elevator and the protective circuit of main contactor power supply when described elevator main control board output error signal.
2. a kind of elevator protection device according to claim 1, it is characterized in that: described protective circuit comprises the normally closed contact that is serially connected in the relay in band-type brake electric power loop and main contactor electric power loop, the position that can export described spurious signal on one end of the coil of this relay and described elevator main control board is electrically connected, the other end of this coil is connected with power supply, at described elevator main control board not during the output error signal, the coil of described relay must not be electric, and described normally closed contact remains closed; When described elevator main control board output error signal, the coil of described relay gets electric, and described normally closed contact disconnects, and cuts off described band-type brake power supply and main contactor power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220660871 CN202988462U (en) | 2012-12-05 | 2012-12-05 | Protective device of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220660871 CN202988462U (en) | 2012-12-05 | 2012-12-05 | Protective device of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202988462U true CN202988462U (en) | 2013-06-12 |
Family
ID=48559661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220660871 Expired - Lifetime CN202988462U (en) | 2012-12-05 | 2012-12-05 | Protective device of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202988462U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117514A (en) * | 2017-04-11 | 2017-09-01 | 深圳易能电气技术股份有限公司 | A kind of anti-falling protection circuit for building hoist |
| CN110526048A (en) * | 2019-08-08 | 2019-12-03 | 深圳市海浦蒙特科技有限公司 | A kind of strong control method and system for driving elevator |
| CN111675060A (en) * | 2020-05-25 | 2020-09-18 | 佛山市乐联科技有限公司 | Elevator abnormity intelligent monitoring and automatic emergency rescue method, device and storage medium |
-
2012
- 2012-12-05 CN CN 201220660871 patent/CN202988462U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107117514A (en) * | 2017-04-11 | 2017-09-01 | 深圳易能电气技术股份有限公司 | A kind of anti-falling protection circuit for building hoist |
| CN107117514B (en) * | 2017-04-11 | 2019-09-06 | 深圳易能电气技术股份有限公司 | A kind of anti-falling protection circuit for building hoist |
| CN110526048A (en) * | 2019-08-08 | 2019-12-03 | 深圳市海浦蒙特科技有限公司 | A kind of strong control method and system for driving elevator |
| CN110526048B (en) * | 2019-08-08 | 2022-01-07 | 深圳市海浦蒙特科技有限公司 | Control method and system for forced drive elevator |
| CN111675060A (en) * | 2020-05-25 | 2020-09-18 | 佛山市乐联科技有限公司 | Elevator abnormity intelligent monitoring and automatic emergency rescue method, device and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180426 Address after: 215122 28 Weixin Road, Suzhou Industrial Park, Suzhou, Jiangsu Patentee after: SJEC Corp. Address before: 215122 No. 718 Ting Ting Road, Suzhou Industrial Park, Jiangsu Patentee before: SJEC Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |