CN201777738U - Novel elevator control system safety circuit device - Google Patents
Novel elevator control system safety circuit device Download PDFInfo
- Publication number
- CN201777738U CN201777738U CN2010202468507U CN201020246850U CN201777738U CN 201777738 U CN201777738 U CN 201777738U CN 2010202468507 U CN2010202468507 U CN 2010202468507U CN 201020246850 U CN201020246850 U CN 201020246850U CN 201777738 U CN201777738 U CN 201777738U
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- safety
- switch
- circuit device
- elevator control
- control system
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Abstract
The utility model relates to a novel elevator control system safety circuit device, which is characterized in that a phase sequence relay normally-open contact, a control cabinet emergency switch, a car top emergency switch, a safety tongs switch, a car inside emergency switch, an overrunning governor switch, a tension pulley switch, a buffer switch and a pit switch are serially connected with a safety relay after being sequentially connected with each other and are connected to two ends of a control transformer power source. The circuit device is provided with two safety relays which are connected with each other in parallel, and the normally-open contacts of the two safety relays are connected with a safety circuit signal sampling connection of an elevator control center after being connected with each other in series. The novel elevator control system safety circuit device is not only widely used for the production of new elevators, but also can be used for modifying the control system of old elevators. The safety circuit device adopts two parallelly-connected safety relays, so the running safety and reliability of the elevator are greatly improved.
Description
One. technical field:
The utility model relates to a kind of apparatus for controlling elevator safety return circuit device, belongs to the elevator control gear technical field.
Two. background technology:
The elevator safety control technology is the key of elevator running technology always, and known elevator control technology has three kinds: relay control, system controlled by computer and PLC control no matter adopt which kind of control technology, all are could start operation when safety return circuit is closed.At present, the principle scheme in lift running safety loop is: link to each other with safety relay after each electric safety switch is connected in series, one group of contact of control center's sampling safety relay, judge according to the state of relay contact whether safety return circuit is closed, if the contact is in closure state, master controller sends the elevator operating instruction.The deficiency of this scheme is, in case quality problems take place in the safety relay contact, might cause the contact adhesion, will appear at safety return circuit does not have under the conducting state, control center samples the closed spurious signal of safety return circuit, and then causes the generation of safety misadventure.
Three. the utility model content:
In order to overcome the deficiency of above-mentioned apparatus for controlling elevator safety return circuit scheme, the utility model provides a kind of safety return circuit device of novel elevator control system, improves reliability, the safety of apparatus for controlling elevator.
The technical solution adopted in the utility model is:
Described novel elevator control system safety return circuit device, connect successively to connect with safety relay again and be connected in the control transformer both ends of power by emergency stop switch, governor switch, rise rope sheave switch, buffer switch, pit switch in phase sequence relay open contact, control housing emergency stop switch, sedan-chair top emergency stop switch, safety tongs switch, the sedan-chair and constitute, this loop apparatus is provided with the safety relay of two parallel connections, and the normally open contact series connection back of described two safety relaies links to each other with the solid road of the safety signal sampling interface of elevator control center.
The control transformer power supply 1 of described safety return circuit is the secondary output of elevator control cabinet internal transformer.
The beneficial effects of the utility model:
The utility model is avoided because single the elevator safety accident that the relay contact adhesion causes owing to adopted double relay; Easy to use, control path is simple and clear, is easy to safeguard, not only is used for the new clothes apparatus for controlling elevator, also can transform the elevator control gear that has moved.Satisfy the demand of elevator safety control fully.
Four. description of drawings:
Fig. 1 is the utility model structure principle chart;
Among the figure: emergency stop switch, 7-governor switch, 8-rise rope sheave switch, 9-buffer switch, 10-pit switch, 11-Resistor-Capacitor Unit, 12-safety relay A, 13-safety relay B in the 1-control transformer, 2-phase sequence relay contact, 3-control housing emergency stop switch, 4-sedan-chair top emergency stop switch, 5-safety tongs switch, 6-sedan-chair.
Fig. 2 is the utility model signal sampling frame principle figure
Among the figure: 14-elevator control center, 15-safety return circuit signal sampling input interface, 16-safety relay A open contact, 17-safety relay B open contact.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, elevator safety loop device described in the utility model, by phase sequence relay 2, control housing emergency stop switch 3, sedan-chair top emergency stop switch 4, safety tongs switch 5, emergency stop switch 6 in the sedan-chair, governor switch 7, rope sheave switch 8 rises, buffer switch 9, pit switch 10, Resistor-Capacitor Unit 11, safety relay A, safety relay B constitutes, described safety switch is with the mode of being connected in series, described two safety relaies are with the mode of being connected in parallel, the safety relay 12 of described two parallel connections, 13 two ends, two Resistor-Capacitor Units 11 in parallel, then safety switch is connected in series with safety relay in parallel again, forms elevator safety loop.
The signal sampling of elevator safety loop, safety return circuit signal sampling input interface 15, safety relay A open contact 16, safety relay B open contact 17 by elevator control center 14 constitute, the open contact of described two safety relaies is with the mode of being connected in series, be connected to safety return circuit signal sampling input interface 15 then, judge the usefulness whether safety return circuit is communicated with for elevator control center 14.
It is emphasized that; embodiment described in the utility model is an illustrative; but not it is determinate; therefore the utility model is not limited to the embodiment described in the specific embodiment; every this area person skilled belongs to the scope of the utility model protection equally according to other embodiment that the technical solution of the utility model draws.
Claims (3)
1. novel elevator control system safety return circuit device, by phase sequence relay open contact (2), control housing emergency stop switch (3), sedan-chair top emergency stop switch (4), safety tongs switch (5), emergency stop switch (6) in the sedan-chair, governor switch (7), rope sheave switch (8) rises, buffer switch (9), pit switch (10) is connected successively to connect with safety relay and be connected in control transformer power supply (1) two ends and is constituted, it is characterized in that: this loop apparatus is provided with the safety relay A and the B (12 of two parallel connections, 13), described two safety relaies (12,13) normally open contact (16,17) the series connection back links to each other with the safety return circuit signal sampling interface (15) of elevator control center (14).
2. novel elevator control system safety return circuit device according to claim 1 is characterized in that: the control transformer power supply (1) of this safety return circuit is the secondary output of elevator control cabinet internal transformer.
3. novel elevator control system safety return circuit device according to claim 1 is characterized in that: the safety relay of described two parallel connections (12,13) two ends also are connected with two Resistor-Capacitor Units (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202468507U CN201777738U (en) | 2010-06-24 | 2010-06-24 | Novel elevator control system safety circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202468507U CN201777738U (en) | 2010-06-24 | 2010-06-24 | Novel elevator control system safety circuit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201777738U true CN201777738U (en) | 2011-03-30 |
Family
ID=43790959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202468507U Expired - Fee Related CN201777738U (en) | 2010-06-24 | 2010-06-24 | Novel elevator control system safety circuit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201777738U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701035A (en) * | 2012-05-14 | 2012-10-03 | 苏州汇川技术有限公司 | Elevator safety circuit fault location system, method and location module |
| CN104755403A (en) * | 2012-10-29 | 2015-07-01 | 因温特奥股份公司 | Electronic wire bridge with safety circuit |
| WO2019205583A1 (en) * | 2018-04-28 | 2019-10-31 | 苏州汇川技术有限公司 | Elevator safety system and safety control method |
-
2010
- 2010-06-24 CN CN2010202468507U patent/CN201777738U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701035A (en) * | 2012-05-14 | 2012-10-03 | 苏州汇川技术有限公司 | Elevator safety circuit fault location system, method and location module |
| CN102701035B (en) * | 2012-05-14 | 2015-12-09 | 苏州汇川技术有限公司 | Elevator safety loop fault location system, method and locating module |
| CN104755403A (en) * | 2012-10-29 | 2015-07-01 | 因温特奥股份公司 | Electronic wire bridge with safety circuit |
| CN104755403B (en) * | 2012-10-29 | 2016-11-23 | 因温特奥股份公司 | There is the electric wire bridge of safety protective circuit |
| WO2019205583A1 (en) * | 2018-04-28 | 2019-10-31 | 苏州汇川技术有限公司 | Elevator safety system and safety control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20160624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |