CN202643058U - Safety circuit for door pre-opening and floor re-reaching functions of elevator - Google Patents
Safety circuit for door pre-opening and floor re-reaching functions of elevator Download PDFInfo
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- CN202643058U CN202643058U CN 201220218653 CN201220218653U CN202643058U CN 202643058 U CN202643058 U CN 202643058U CN 201220218653 CN201220218653 CN 201220218653 CN 201220218653 U CN201220218653 U CN 201220218653U CN 202643058 U CN202643058 U CN 202643058U
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Abstract
The utility model discloses a safety circuit for door pre-opening and floor re-reaching functions of an elevator, relating to an elevator control circuit. The safety circuit comprises a safety relay release delay circuit, a door area signal circuit, a speed signal circuit, a door lock short-circuit detection and speed signal detection circuit and a door lock short-circuit circuit, wherein a normally open contact and a normally closed contact of a safety relay are used for carrying out self locking and interlocking, so that the interlocking problem of an elevator door area signal and a speed signal is solved effectively, and the requirement of relevant elevator standards on the door lock short-circuit circuit is met. When the speed signal is invalid, the speed signal circuit and the door area signal circuit are about to disconnect, and the door lock short-circuit detection and speed signal detection circuit and the door lock short-circuit circuit are both disconnected, so that the safety and the reliability of the elevator are improved. The safety circuit integrates the safety relay and relevant devices and can be used to realize the door pre-opening and floor re-reaching functions safely.
Description
Technical field
The utility model relates to a kind of elevator control circuit, particularly relates to a kind of control loop for lift car.
Background technology
In order to improve elevator operating efficiency, save the time that the occupant waits for door-opened elevator, elevator should possess the function of advance door opening.Simultaneously, during for compensation personnel turnover or carrying vehicle and goods turnover car, the flexible a small amount of lifting of car that causes of the traction steel-cable that causes, thereby make car sill and stop remain basic horizontal, elevator makes things convenient for the turnover of personnel or carrying vehicle and goods, so should possess again story-leveling function.
At the elevator control field, existing control system can realize advance door opening and again the base model of story-leveling function have following two kinds: a kind of is to realize by micro-switch or travel switch, and this does not meet international requirement, can impact impact to lift product outlet; Another realizes advance door opening and story-leveling function again with contactless switch by peripheral line, and the price of the contactless switch that obvious this method is used is relatively expensive, and takies very large space, and safety performance neither be very desirable.And according to the GB regulation, in the elevator electrical safety control setup, employed safety switch all should be that safety contact transmits electric signal.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of and can realize advance door opening and the safety return circuit of story-leveling function again, overcome safe in the prior art, reliable, economical, and the defective of miniaturization deficiency.
Advance door opening of the present utility model and the safety return circuit of story-leveling function again, wherein: comprise safety relay release delay loop, door district signal circuit, speed signal loop, the door lock short circuit detects and speed signal detects loop, door lock short circuit loop;
Safety relay release delay loop is made of normally closed contact K2.2, safety relay K1, sustained diode 2, resistance R 7, the capacitor C 1 of normally closed contact K3.2, the safety relay K2 of open contact K1.2, the safety relay K3 of safety relay K1; Enter from 1 termination of the IO interface TB1 of input power, minute two-way connects, and one the road is connected to the open contact K1.2 of safety relay K1; Another road is connected to the normally closed contact K2.2 of safety relay K2, two tunnel normally closed contact K3.2 that are connected to together safety relay K3 again, then be connected to safety relay K1, go out from 2 terminations of IO interface TB1, sustained diode 2 is in parallel with safety relay K1, and is in parallel with safety relay K1 again after resistance R 7 and capacitor C 1 series connection;
Door district signal circuit is made of normally closed contact K3.3, resistance R 3, LED 5, safety relay K2, the sustained diode 3 of open contact K2.3, the safety relay K3 of open contact K1.3, the safety relay K2 of open contact K4.1, the safety relay K1 of door district signal switch B1, safety relay K4; Enter from 1 termination of the IO interface TB1 of input power, the open contact K4.1 that connects safety relay K4, reconnect 3 ends of the IO interface TB1 of input power, reconnect a district signal switch B1, reconnect 4 ends of the IO interface TB1 of input power, then divide three the tunnel, the first via connects the open contact K1.3 of safety relay K1, then connects the normally closed contact K3.3 of upper safety relay K3; The second the tunnel connects the open contact K2.3 of safety relay K2, is connected to safety relay K2 with the first via again, goes out from 2 terminations of IO interface TB1; Third Road is connected to first resistance R 3, and the LED 5 of connecting again goes out from 2 terminations of IO interface TB1, and sustained diode 3 is in parallel with safety relay K2;
The speed signal loop is made of open contact K3.4, safety relay K3, safety relay K4, sustained diode 4, sustained diode 5, resistance R 4, the light emitting diode LED6 of open contact K2.4, the safety relay K3 of open contact K1.4, the safety relay K2 of speed signal switch B2, safety relay K1; Enter from 1 termination of the IO interface TB1 of input power, speed signal switch B2 in the connection, reconnect 5 ends of the IO interface TB1 of input power, then divide four the tunnel to connect, the first via is connected to the open contact K1.4 of safety relay K1, is connected to the open contact K2.4 of safety relay K2; The second the road is connected to the open contact K3.4 of safety relay K3, is connected to safety relay K3 with the first via again, and then 2 terminations from IO interface TB1 go out; Third Road is in parallel with the four the tunnel, and after Third Road was connected to safety relay K4, then 2 terminations from IO interface TB1 went out; The four the road is connected to resistance R 4, the light emitting diode LED6 that connects again, and then 2 terminations from IO interface TB1 go out; Sustained diode 4 is in parallel with safety relay K3, and sustained diode 5 is also in parallel with safety relay K4;
The door lock short circuit detects and speed signal detection loop is made of the open contact K4.2 of open contact K3.5, the safety relay K4 of open contact K2.5, the safety relay K3 of normally closed contact K1.5, the safety relay K2 of safety relay K1, the open contact K4.3 of safety relay K4; Enter from 1 termination of the IO interface TB2 of master control board, be connected to the normally closed contact K1.5 of safety relay K1, then be divided into two the tunnel, one the road is connected to the open contact K2.5 of safety relay K2, be connected to the open contact K3.5 of safety relay K3, be connected to the open contact K4.2 of safety relay K4, go out from 2 terminations of the IO interface TB2 of master control board; Another road is connected to the open contact K4.3 of safety relay K4, goes out from 2 terminations of the IO interface TB2 of master control board;
Door lock short circuit loop is made of the open contact K3.6 of open contact K2.6, the safety relay K3 of normally closed contact K1.6, the safety relay K2 of safety relay K1, the open contact K4.4 of safety relay K4; Enter from 1 termination of the IO interface TB3 of master control board, be connected to the normally closed contact K1.6 of safety relay K1, be connected to the open contact K2.6 of safety relay K2, be connected to the open contact K3.6 of safety relay K3, be connected to the open contact K4.4 of safety relay K4, go out from 2 terminations of the IO interface TB3 of master control board.
Also comprise safety relay K2 adhesive indication loop, safety relay K2 adhesive indication loop is made of the normally closed contact K2.1 of resistance R 1, LED 1, sustained diode 1, safety relay K2; Enter from 1 termination of the IO interface TB1 of input power, connect with resistance R 1, LED 1 on connecting again, go out from 2 terminations of IO interface TB1, sustained diode 1 is in parallel with LED 1, and the normally closed contact K2.1 of safety relay K2 is also in parallel with LED 1.
Also comprise safety relay K1 adhesive indication loop, safety relay K1 adhesive indication loop is made of the open contact K1.1 of resistance R 5, LED 2, safety relay K1; Enter from 1 termination of the IO interface TB1 of input power, connect with open contact K1.1, resistance R 5, the LED 2 of safety relay K1 again, go out from 2 terminations of IO interface TB1.
Also comprise safety relay K3 adhesive indication loop, safety relay K3 adhesive indication loop is made of the open contact K3.1 of resistance R 6, LED 3, safety relay K3; Enter from 1 termination of the IO interface TB1 of input power, connect with open contact K3.1, resistance R 6, the LED 3 of safety relay K3 successively, go out from 2 terminations of IO interface TB1.
Also comprise input power indication loop, input power indication loop is made of resistance R 2, light emitting diode LED4; Enter from 1 termination of the IO interface TB1 of input power, connect with resistance R 2, connect with LED 4 again, go out from 2 terminations of IO interface TB1.
Advance door opening of the present utility model and again the positive beneficial effect that has of the safety return circuit of story-leveling function comprise:
1. utilize dexterously open contact and the normally closed contact of safety relay to carry out self-locking and interlocking, efficiently solved the inter lock problem of elevator door zone signal and speed signal, met the elevator related standards to the requirement in door lock short circuit loop;
2. when speed signal was invalid, the speed signal loop disconnected, and door district signal circuit also can disconnect simultaneously, and the door lock short circuit detects and speed signal detects the loop and door lock short circuit loop all disconnects, and has improved the safety and reliability of elevator;
3. only adopt a door district signal, can directly cut off fast the detection of door lock short circuit and speed signal and detect loop and door lock short circuit loop, also be convenient to install, save cost of installation;
4. adopt safety relay as relay control device, just in case also can guarantee safety when contact clinkering phenomenon occurs, utilize its contact to carry out the work indication, more directly, effective;
5. adopting light emitting diode is that power supply, door district signal, safety relay carry out the work indication, more convenient, direct, be easy to find fault.
Below in conjunction with accompanying drawing to advance door opening of the present utility model and again the safety return circuit of story-leveling function be described further.
Description of drawings
Fig. 1 is advance door opening of the present utility model and the safety relay K2 adhesive indication loop structure schematic diagram in the safety return circuit of story-leveling function again;
Fig. 2 is advance door opening of the present utility model and the safety relay K1 adhesive indication loop structure schematic diagram in the safety return circuit of story-leveling function again;
Fig. 3 is advance door opening of the present utility model and the safety relay K3 adhesive indication loop structure schematic diagram in the safety return circuit of story-leveling function again;
Fig. 4 is advance door opening of the present utility model and the input power indication loop structure schematic diagram in the safety return circuit of story-leveling function again;
Fig. 5 is advance door opening of the present utility model and the safety relay release delay loop structure schematic diagram in the safety return circuit of story-leveling function again;
Fig. 6 is advance door opening of the present utility model and the door district signal circuit structural representation in the safety return circuit of story-leveling function again;
Fig. 7 is advance door opening of the present utility model and the speed signal loop structure schematic diagram in the safety return circuit of story-leveling function again;
Fig. 8 be advance door opening of the present utility model and again the door lock short circuit in the safety return circuit of story-leveling function detect and speed signal detects the loop structure schematic diagram;
Fig. 9 is advance door opening of the present utility model and the door lock short circuit loop structure schematic diagram in the safety return circuit of story-leveling function again;
Figure 10 is the utility model advance door opening and the electrical block diagram of the safety return circuit of story-leveling function again.
The specific embodiment
Advance door opening of the present utility model and again the safety return circuit of story-leveling function by safety relay K2 adhesive indication loop, safety relay K1 adhesive indication loop, safety relay K3 adhesive indication loop, input power indication loop, safety relay release delay loop, door district signal circuit, speed signal loop, the door lock short circuit detects and speed signal detects the loop, door lock short circuit loop consists of.
As shown in Figure 1, safety relay K2 adhesive indication loop is that normally closed contact K2.1 by resistance R 1, LED 1, sustained diode 1, safety relay K2 consists of.Connection mode: enter from 1 termination of the IO interface TB1 of input power, connect with resistance R 1, then LED 1 on connecting, go out from 2 terminations of IO interface TB1, wherein sustained diode 1 is in parallel with LED 1, reverse protection diode as LED 1 plays the effect of Absorption Current; The normally closed contact K2.1 of safety relay K2 is also in parallel with LED 1, the normally closed contact K2.1 of safety relay K2 is under closure state, with light emitting diode LED1 short circuit, LED 1 does not work, the normally closed contact K2.1 of safety relay K2 is under off-state, and LED 1 is bright, so LED 1 is as the indicator lamp of safety relay K2, safety relay K2 closure state under bright, for safety relay K2 plays the adhesive indicative function; And resistance R 1 is the current-limiting resistance of light emitting diode LED1, plays the effect of current-limiting protection.
Safety relay K2 adhesive indication loop is under initial condition, and normally closed contact K2.1 is closed, also just means LED1 by short circuit, so LED1 does not work; And when car access door zone position, safety relay K2 adhesive, normally closed contact K2.1 will disconnect, so LED1 is lit;
As shown in Figure 2, safety relay K1 adhesive indication loop is that open contact K1.1 by resistance R 5, LED 2, safety relay K1 consists of.Connection mode: enter from 1 termination of the IO interface TB1 of input power, connect with open contact K1.1, resistance R 5, the LED 2 of safety relay K1 again, go out from 2 terminations of IO interface TB1.Wherein resistance R 5 is the current-limiting resistance of light emitting diode LED2, plays the effect of current-limiting protection; Under the state of the open contact K1.1 closure of safety relay K1, LED 2 is bright, so LED 2 plays the adhesive indicative function for safety relay K1.
Safety relay K1 adhesive indication loop is under initial condition, and open contact K1.1 disconnects, so LED2 does not work; When lift car is static when being in zone position, because door district signal switch B1 and speed signal switch B2 are closed, after master control board powers on, safety relay K4, safety relay K2, safety relay K3 get electric adhesive, normally closed contact K3.2 can disconnect after safety relay K3 gets electric adhesive, so again time-delay release disconnects again after the open contact K1.1 closure after the safety relay K1 moment adhesive, extinguishes again after LED2 lights; When car leaves a zone position, and car speed is during greater than safety speed, and safety relay K1 is again adhesive, and open contact K1.1 is closed, and LED2 is bright, until car enters next stop; When car access door zone position, safety relay K1 discharges, and open contact K1.1 disconnects, and LED2 goes out.
As shown in Figure 3, safety relay K3 adhesive indication loop is that open contact K3.1 by resistance R 6, LED 3, safety relay K3 consists of.Connection mode: enter from 1 termination of the IO interface TB1 of input power, connect with open contact K3.1, resistance R 6, the LED 3 of safety relay K3 successively again, go out from 2 terminations of IO interface TB1.Wherein resistance R 6 is the current-limiting resistance of light emitting diode LED2, plays the effect of current-limiting protection; Under the state of the open contact K3.1 closure of safety relay K3, LED 3 is bright, so LED 3 plays the adhesive indicative function for safety relay K3.
Safety relay K3 adhesive indication loop is under initial condition, and open contact K3.1 disconnects, so LED3 does not work; When car is in a zone position, safety relay K3 adhesive, open contact K3.1 is closed, and LED 3 is bright;
When car leaves a zone position, and car speed is during greater than safety speed, and safety relay K3 discharges, and open contact K3.1 is closed, and LED 3 goes out.
As shown in Figure 4, input power indication loop is to be made of resistance R 2, light emitting diode LED4.Connection mode: enter from 1 termination of the IO interface TB1 of input power, connect with resistance R 2, connect with LED 4 again, go out from 2 terminations of IO interface TB1.Wherein resistance R 2 is the current-limiting resistance of light emitting diode LED2, plays the effect of current-limiting protection; Light emitting diode LED4 is bright after connecting the 24V power supply, plays the energising indicative function so light emitting diode LED4 is the 24V input power.
24V input power indication loop is conducting under initial condition, also just means at master control board to power in a flash, and LED 4 is bright.
As shown in Figure 5, safety relay release delay loop is that normally closed contact K2.2, safety relay K1, sustained diode 2, resistance R 7, capacitor C 1 by normally closed contact K3.2, the safety relay K2 of open contact K1.2, the safety relay K3 of safety relay K1 consists of.Connection mode: enter from 1 termination of the IO interface TB1 of input power, minute two-way connects, and one the road is connected to the open contact K1.2 of safety relay K1; Another road is connected to the normally closed contact K2.2 of safety relay K2, and then two tunnel normally closed contact K3.2 that are connected to together safety relay K3 are connected to safety relay K1 again, goes out from 2 terminations of IO interface TB1.Wherein sustained diode 2 is in parallel with safety relay K1, plays the effect of Absorption Current; In parallel with safety relay K1 again after resistance R 7 and capacitor C 1 series connection, play the effect of release delay.
When lift car is static when being in zone position, door district signal switch B1 and speed signal switch B2 are closed, safety relay release delay loop is under initial condition, normally closed contact K2.2, normally closed contact K3.2 is closed, after master control board powers on, safety relay K4, safety relay K2, safety relay K3 gets electric adhesive, normally closed contact K3.2 can disconnect after safety relay K3 gets electric adhesive, so again time-delay release after the safety relay K1 moment adhesive, time-delay disconnects after the open contact K1.2 moment adhesive, and this moment safety relay K1 because the disconnection of normally closed contact K3.2, its open contact K1.4, can make safety relay K3 instant cut-off, for head it off, need by resistance R 7, the hangover circuit that capacitor C 1 forms makes safety relay K1 delayed release, requires the time of its delayed release more than or equal to time coefficient 20 ~ 50ms; When car leaves a zone position, the safety relay K2 release of cutting off the power supply, normally closed contact K2.2 is closed, then when car speed during greater than safety speed, and the safety relay K3 release of cutting off the power supply, normally closed contact K3.2 is closed, safety relay K1 again electric adhesive, open contact K1.2 is closed, no matter whether normally closed contact K2.2 closed, until car arrives a zone position next time, safety relay release delay loop just disconnects by open contact K1.2 self-locking; At next stop, when car access door zone position, safety relay K2 got electric adhesive before this, normally closed contact K2.2 disconnects, safety relay K1 gets electric by open contact K1.2 self-locking, then still adhesive is safety relay K3 adhesive, normally closed contact K3.2 disconnects, and safety relay K1 power cut off delay discharges.
As shown in Figure 6, door district's signal circuit is that normally closed contact K3.3, resistance R 3, LED 5, safety relay K2, sustained diode 3 by open contact K2.3, the safety relay K3 of open contact K1.3, the safety relay K2 of open contact K4.1, the safety relay K1 of door district signal switch B1, safety relay K4 consists of.Connection mode: enter from 1 termination of the IO interface TB1 of input power, the open contact K4.1 of safety relay K4 in the connection, reconnect 3 ends of the IO interface TB1 of input power, connect and distinguish to the doorstep signal switch B1, reconnect 4 ends of the IO interface TB1 of input power, then divide three the tunnel to connect, the first via connects the open contact K1.3 of upper safety relay K1, then connects the normally closed contact K3.3 of upper safety relay K3; The second the tunnel connects the open contact K2.3 of safety relay K2, is connected to safety relay K2 with the first via again, goes out from 2 terminations of IO interface TB1; Third Road is connected to first resistance R 3, is connected to LED 5, goes out from 2 terminations of IO interface TB1.Wherein sustained diode 3 is in parallel with safety relay K2, plays the effect of Absorption Current; Resistance R 3 is connected with light emitting diode LED5, plays the effect of current-limiting protection; Light emitting diode LED5 plays the effect of work indication for door district signal.
Door district signal circuit is under initial condition, open contact K4.1, open contact K1.3, open contact K2.3 He Men district signal switch B1 disconnect, and normally closed contact K3.3 is closed, after master control board powers on, safety relay K1 gets electric adhesive, and open contact K2.3 is closed; When car speed during less than safety speed, safety relay K4 gets electric adhesive, and open contact K4.1 is closed; When car access door zone position, signal switch B1 is closed in the door district, LED5 is bright as door district signal lamp, safety relay K2 gets electric adhesive simultaneously, open contact K2.3 is closed, then no matter whether open contact K1.3, normally closed contact K3.3 be closed, by the K2.3 self-locking, until car leaves a zone position, door district signal circuit just disconnects.
As shown in Figure 7, the speed signal loop is that open contact K3.4, safety relay K3, safety relay K4, sustained diode 4, sustained diode 5, resistance R 4, light emitting diode LED6 by open contact K2.4, the safety relay K3 of open contact K1.4, the safety relay K2 of speed signal switch B2, safety relay K1 consists of.Connection mode: enter from 1 termination of the IO interface TB1 of input power, speed signal switch B2 in the connection, reconnect 5 ends of the IO interface TB1 of input power, then divide four the tunnel to connect, the first via is connected to the open contact K1.4 of safety relay K1, is connected to the open contact K2.4 of safety relay K2; The second the road is connected to the open contact K3.4 of safety relay K3, is connected to safety relay K3 with the first via again, and then 2 terminations from IO interface TB1 go out; After Third Road was connected to safety relay K4, then 2 terminations from IO interface TB1 went out; The four the road is connected to resistance R 4, is connected to light emitting diode LED6, and then 2 terminations from IO interface TB1 go out.Wherein Third Road is in parallel with the four the tunnel, and sustained diode 4 is in parallel with safety relay K3, plays the effect of Absorption Current; Sustained diode 5 is also in parallel with safety relay K4, plays equally the effect of Absorption Current; Resistance R 4 is connected with light emitting diode LED6, plays the effect of current-limiting protection; LED 6 plays the effect of work indication for speed signal.
The speed signal loop is under initial condition, and open contact K1.4, open contact K2.4, open contact K3.4 and speed signal switch B2 disconnect, and after master control board powered on, after safety relay K1 got electric adhesive, K1.4 was closed; When car speed during less than safety speed, speed signal switch B2 is closed, and LED6 is bright as the speed signal indicator lamp, and safety relay K4 gets electric adhesive simultaneously; When car access door zone position, safety relay K2 gets electric adhesive, K2.4 is closed, and K1.4 is closed, so safety relay K3 gets electric adhesive, open contact K3.4 is closed, then no matter whether open contact K1.4, open contact K2.4 be closed, by open contact K3.4 self-locking, until car speed is greater than safety speed, the speed signal loop just disconnects.
As shown in Figure 8, the door lock short circuit detect and speed signal to detect the loop be that open contact K4.2, the open contact K4.3 of safety relay K4 by open contact K3.5, the safety relay K4 of open contact K2.5, the safety relay K3 of normally closed contact K1.5, the safety relay K2 of safety relay K1 consists of.Connection mode: enter from 1 termination of the IO interface TB2 of master control board, be connected to the normally closed contact K1.5 of safety relay K1, then be divided into two the tunnel, one the tunnel is that the door lock short circuit detects the loop, be connected to the open contact K2.5 of safety relay K2, be connected to the open contact K3.5 of safety relay K3, be connected to the open contact K4.2 of safety relay K4, go out from 2 terminations of the IO interface TB2 of master control board; Another road is that speed signal detects the loop, is connected to the open contact K4.3 of safety relay K4, goes out from 2 terminations of the IO interface TB2 of master control board.
The door lock short circuit detects and speed signal detects the loop under initial condition, normally closed contact K1.5 is closed, open contact K2.5, open contact K3.5, open contact K4.2, open contact K4.3 disconnect, after master control board powers on, after safety relay K1 got electric adhesive, normally closed contact K1.5 disconnected, when car speed during less than safety speed, safety relay K4 gets electric adhesive, and open contact K4.2, open contact K4.3 are closed; When car access door zone position, at first safety relay K2 gets electric adhesive, K2.5 is closed, and then safety relay K3 gets electric adhesive, K3.5 is closed, and subsequently safety relay K1 outage discharges, and K1.5 recovers adhesive, thereby whole door lock short circuit detects and speed signal detects the loop conducting, and door lock short circuit detection signal and speed detection signal are fed back to master control board.
As shown in Figure 9, door lock short circuit loop is that open contact K3.6, the open contact K4.4 of safety relay K4 by open contact K2.6, the safety relay K3 of normally closed contact K1.6, the safety relay K2 of safety relay K1 consists of.Connection mode: enter from 1 termination of the IO interface TB3 of master control board, be connected to the normally closed contact K1.6 of safety relay K1, be connected to the open contact K2.6 of safety relay K2, be connected to the open contact K3.6 of safety relay K3, be connected to the open contact K4.4 of safety relay K4, go out from 2 terminations of the IO interface TB3 of master control board.
Door lock short circuit loop is under initial condition, normally closed contact K1.6 is closed, open contact K2.6, open contact K3.6, open contact K4.4 disconnect, after master control board powers on, after safety relay K1 got electric adhesive, normally closed contact K1.6 disconnected, when car speed during less than safety speed, safety relay K4 gets electric adhesive, and open contact K4.4 is closed; When car access door zone position, at first safety relay K2 gets electric adhesive, open contact K2.6 is closed, and and then safety relay K3 gets electric adhesive, and open contact K3.6 is closed, subsequently safety relay K1 outage discharges, normally closed contact K1.6 recovers adhesive, thereby the loop conducting of door lock short circuit realizes the door lock short circuit, make the electric safety device short circuit of layer door and car door, finish the action of opening the door.
As shown in figure 10, advance door opening of the present utility model and safety return circuit when operation of story-leveling function again, lift car is static when being in zone position, because door district signal switch B1 and speed signal switch B2 are closed, and whole elevator advance door opening and again the safety return circuit of story-leveling function under initial condition, open contact K1.1, open contact K3.1, open contact K1.2, open contact K4.1, open contact K1.3, open contact K2.3, open contact K1.4, open contact K2.4, open contact K3.4, open contact K2.5, open contact K3.5, open contact K4.2, open contact K4.3, open contact K2.6, open contact K3.6, open contact K4.4 all disconnects; Normally closed contact K2.1, normally closed contact K2.2, normally closed contact K3.2, normally closed contact K3.3, normally closed contact K1.5, normally closed contact K1.6 are all closed; When master control board powered on, LED 4 was bright, showed that the 24V input power is switched on; Safety relay K1 gets electric adhesive, open contact K1.1, open contact K1.2, open contact K1.3, open contact K1.4 closure, normally closed contact K1.5, normally closed contact K1.6 disconnect, and LED 2 is bright, show safety relay K1 adhesive, open contact K1.2 enters self-locking state; Simultaneously because door district signal switch B1 and speed signal switch B2 are closed, LED 6 is bright, safety relay K4 gets electric adhesive, open contact K4.1, open contact K4.2, open contact K4.3, open contact K4.4 closure, and LED 5 is bright; Safety relay K2 also can get electric adhesive because of the closure of open contact K4.1, open contact K1.3, normally closed contact K3.3, door district signal switch B1 so, open contact K2.3, open contact K2.4, open contact K2.5, open contact K2.6 closure, normally closed contact K2.1, normally closed contact K2.2 disconnect, open contact K2.3 enters self-locking state, LED 1 is bright, shows safety relay K2 adhesive; Because speed signal switch B2 in front, open contact K1.4, open contact K2.4 is closed, so safety relay K3 gets electric adhesive, open contact K3.1, open contact K3.4, open contact K3.5, open contact K3.6 is closed, normally closed contact K3.2, normally closed contact K3.3 disconnects, and this moment safety relay K1 because the disconnection of normally closed contact K3.2, its open contact K1.4, can make safety relay K3 instant cut-off, for head it off, need by resistance R 7, the hangover circuit that capacitor C 1 forms makes safety relay K1 delayed release, require the time of its delayed release more than or equal to time coefficient 20 ~ 50ms, last safety relay K1 outage discharges, open contact K1.1, open contact K1.2, open contact K1.3, open contact K1.4 disconnects, normally closed contact K1.5, it is closed that normally closed contact K1.6 recovers, LED 2 goes out, LED 3 is bright, the door lock short circuit detects and speed signal detects loop and all conductings of door lock short circuit loop, door lock short circuit detection signal and speed detection signal have been begun to the feedback of frequency converter, the door lock of elevator safety device is by short circuit, to finish the open the door action of elevator in door district scope simultaneously.When car leaves zone position, door district signal switch B1 disconnects, LED 5 goes out, show that district's signal disconnects, the safety relay K2 release of cutting off the power supply, open contact K2.3, open contact K2.4, open contact K2.5, open contact K2.6 full recovery disconnects, normally closed contact K2.1, normally closed contact K2.2 full recovery is closed, LED 1 goes out, show that safety relay K2 discharges, again because open contact K2.5, open contact K2.6 disconnects in front, the door lock short circuit that the door lock short circuit detects and speed signal detects in the loop detects the loop disconnection, door lock short circuit loop disconnects too, and speed signal detects the loop and then continues to keep conducting, is frequency converter feedback speed signal.When car speed leaving from station during greater than safety speed, speed signal switch B2 disconnects, LED 6 goes out, show that speed signal disconnects, safety relay K3, safety relay K4 discharges, open contact K3.1, open contact K3.4, open contact K3.5, open contact K3.6, open contact K4.1, open contact K4.2, open contact K4.3, open contact K4.4 all disconnects, normally closed contact K3.2, normally closed contact K3.3 is all closed, LED 3 goes out, show that safety relay K3 discharges, the speed signal that the door lock short circuit detects and speed signal detects in the loop detects the loop disconnection, stops to be the frequency converter feedback signal.When car enters next stop, the speed that enters the station is during less than safety speed, speed signal switch B2 is closed, LED 6 is bright, shows that speed signal comes into force, and safety relay K4 gets electric adhesive simultaneously, open contact K4.1, open contact K4.2, open contact K4.3, open contact K4.4 are closed, internal electric source is switched on, and speed signal detects the loop conducting, has begun the feedback of speed signal to frequency converter; When car access door zone position, signal switch B1 is closed in the door district, LED 5 is bright, show that district's signal comes into force, because open contact K1.3, normally closed contact K3.3 is closed in front, so safety relay K2 gets electric adhesive, open contact K2.3, open contact K2.4, open contact K2.5, open contact K2.6 is all closed, normally closed contact K2.2, normally closed contact K2.1 disconnects, LED 1 is bright, show safety relay K2 adhesive, open contact K2.3 is closed into self-locking state, again because open contact K1.4, open contact K2.4 is closed in front, so safety relay K3 gets electric adhesive, open contact K3.1, open contact K3.4, open contact K3.5, open contact K3.6 is all closed, normally closed contact K3.2, normally closed contact K3.3 disconnects, LED 3 is bright, show safety relay K3 adhesive, and this moment safety relay K1 because the disconnection of normally closed contact K3.2, its open contact K1.4 can make safety relay K3 instant cut-off, for head it off, need by resistance R 7, the hangover circuit that capacitor C 1 forms makes safety relay K1 delayed release, require the time of its delayed release more than or equal to time coefficient 20 ~ 50ms, open contact K1.1, open contact K1.2, open contact K1.3, open contact K1.4 recovers to disconnect, normally closed contact K1.5, it is closed that normally closed contact K1.6 recovers, LED 2 goes out, show that safety relay K1 discharges, because open contact K2.5, open contact K3.5, open contact K4.2, open contact K4.3, open contact K2.6, open contact K3.6, open contact K4.4 has been in closure state in front, so the door lock short circuit detects loop and the loop conducting of door lock short circuit, for frequency converter feeds back door lock short circuit signal and finishes the action that safety is opened the door in district's scope.When car whenever enters next stop, above-mentioned entering the station and action leaving from station will circulate.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (5)
1. advance door opening and the again safety return circuit of story-leveling function is characterized in that: comprise that safety relay release delay loop, door district signal circuit, speed signal loop, the detection of door lock short circuit and speed signal detect loop, door lock short circuit loop;
Safety relay release delay loop is made of normally closed contact K2.2, safety relay K1, sustained diode 2, resistance R 7, the capacitor C 1 of normally closed contact K3.2, the safety relay K2 of open contact K1.2, the safety relay K3 of safety relay K1; Enter from 1 termination of the IO interface TB1 of input power, minute two-way connects, and one the road is connected to the open contact K1.2 of safety relay K1; Another road is connected to the normally closed contact K2.2 of safety relay K2, two tunnel normally closed contact K3.2 that are connected to together safety relay K3 again, then be connected to safety relay K1, go out from 2 terminations of IO interface TB1, sustained diode 2 is in parallel with safety relay K1, and is in parallel with safety relay K1 again after resistance R 7 and capacitor C 1 series connection;
Door district signal circuit is made of normally closed contact K3.3, resistance R 3, LED 5, safety relay K2, the sustained diode 3 of open contact K2.3, the safety relay K3 of open contact K1.3, the safety relay K2 of open contact K4.1, the safety relay K1 of door district signal switch B1, safety relay K4; Enter from 1 termination of the IO interface TB1 of input power, the open contact K4.1 that connects safety relay K4, reconnect 3 ends of the IO interface TB1 of input power, reconnect a district signal switch B1, reconnect 4 ends of the IO interface TB1 of input power, then divide three the tunnel, the first via connects the open contact K1.3 of safety relay K1, then connects the normally closed contact K3.3 of upper safety relay K3; The second the tunnel connects the open contact K2.3 of safety relay K2, is connected to safety relay K2 with the first via again, goes out from 2 terminations of IO interface TB1; Third Road is connected to first resistance R 3, and the LED 5 of connecting again goes out from 2 terminations of IO interface TB1, and sustained diode 3 is in parallel with safety relay K2;
The speed signal loop is made of open contact K3.4, safety relay K3, safety relay K4, sustained diode 4, sustained diode 5, resistance R 4, the light emitting diode LED6 of open contact K2.4, the safety relay K3 of open contact K1.4, the safety relay K2 of speed signal switch B2, safety relay K1; Enter from 1 termination of the IO interface TB1 of input power, speed signal switch B2 in the connection, reconnect 5 ends of the IO interface TB1 of input power, then divide four the tunnel to connect, the first via is connected to the open contact K1.4 of safety relay K1, is connected to the open contact K2.4 of safety relay K2; The second the road is connected to the open contact K3.4 of safety relay K3, is connected to safety relay K3 with the first via again, and then 2 terminations from IO interface TB1 go out; Third Road is in parallel with the four the tunnel, and after Third Road was connected to safety relay K4, then 2 terminations from IO interface TB1 went out; The four the road is connected to resistance R 4, the light emitting diode LED6 that connects again, and then 2 terminations from IO interface TB1 go out; Sustained diode 4 is in parallel with safety relay K3, and sustained diode 5 is also in parallel with safety relay K4;
The door lock short circuit detects and speed signal detection loop is made of the open contact K4.2 of open contact K3.5, the safety relay K4 of open contact K2.5, the safety relay K3 of normally closed contact K1.5, the safety relay K2 of safety relay K1, the open contact K4.3 of safety relay K4; Enter from 1 termination of the IO interface TB2 of master control board, be connected to the normally closed contact K1.5 of safety relay K1, then be divided into two the tunnel, one the road is connected to the open contact K2.5 of safety relay K2, be connected to the open contact K3.5 of safety relay K3, be connected to the open contact K4.2 of safety relay K4, go out from 2 terminations of the IO interface TB2 of master control board; Another road is connected to the open contact K4.3 of safety relay K4, goes out from 2 terminations of the IO interface TB2 of master control board;
Door lock short circuit loop is made of the open contact K3.6 of open contact K2.6, the safety relay K3 of normally closed contact K1.6, the safety relay K2 of safety relay K1, the open contact K4.4 of safety relay K4; Enter from 1 termination of the IO interface TB3 of master control board, be connected to the normally closed contact K1.6 of safety relay K1, be connected to the open contact K2.6 of safety relay K2, be connected to the open contact K3.6 of safety relay K3, be connected to the open contact K4.4 of safety relay K4, go out from 2 terminations of the IO interface TB3 of master control board.
2. advance door opening according to claim 1 and the again safety return circuit of story-leveling function, it is characterized in that: also comprise safety relay K2 adhesive indication loop, safety relay K2 adhesive indication loop is made of the normally closed contact K2.1 of resistance R 1, LED 1, sustained diode 1, safety relay K2; Enter from 1 termination of the IO interface TB1 of input power, connect with resistance R 1, LED 1 on connecting again, go out from 2 terminations of IO interface TB1, sustained diode 1 is in parallel with LED 1, and the normally closed contact K2.1 of safety relay K2 is also in parallel with LED 1.
3. advance door opening according to claim 2 and the again safety return circuit of story-leveling function, it is characterized in that: also comprise safety relay K1 adhesive indication loop, safety relay K1 adhesive indication loop is made of the open contact K1.1 of resistance R 5, LED 2, safety relay K1; Enter from 1 termination of the IO interface TB1 of input power, connect with open contact K1.1, resistance R 5, the LED 2 of safety relay K1 again, go out from 2 terminations of IO interface TB1.
4. advance door opening according to claim 3 and the again safety return circuit of story-leveling function, it is characterized in that: also comprise safety relay K3 adhesive indication loop, safety relay K3 adhesive indication loop is made of the open contact K3.1 of resistance R 6, LED 3, safety relay K3; Enter from 1 termination of the IO interface TB1 of input power, connect with open contact K3.1, resistance R 6, the LED 3 of safety relay K3 successively, go out from 2 terminations of IO interface TB1.
5. advance door opening according to claim 4 and the again safety return circuit of story-leveling function is characterized in that: also comprise input power indication loop, input power indication loop is made of resistance R 2, light emitting diode LED4; Enter from 1 termination of the IO interface TB1 of input power, connect with resistance R 2, connect with LED 4 again, go out from 2 terminations of IO interface TB1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218653 CN202643058U (en) | 2012-05-15 | 2012-05-15 | Safety circuit for door pre-opening and floor re-reaching functions of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218653 CN202643058U (en) | 2012-05-15 | 2012-05-15 | Safety circuit for door pre-opening and floor re-reaching functions of elevator |
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| Publication Number | Publication Date |
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| CN202643058U true CN202643058U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220218653 Expired - Fee Related CN202643058U (en) | 2012-05-15 | 2012-05-15 | Safety circuit for door pre-opening and floor re-reaching functions of elevator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197713A (en) * | 2015-10-10 | 2015-12-30 | 贵州天义电梯成套设备有限公司 | Protecting system for accidental moving of elevator car and protecting method thereof |
| CN105384018A (en) * | 2015-11-25 | 2016-03-09 | 苏州汾湖电梯科技有限公司 | Double-contact detection system for domestic lift door |
| CN111377323A (en) * | 2018-12-29 | 2020-07-07 | 蒂森克虏伯电梯（上海）有限公司 | Elevator safety device and elevator |
| WO2021062903A1 (en) * | 2019-09-30 | 2021-04-08 | 苏州汇川技术有限公司 | Safe operation method, system, and device for elevator, medium, and safety function apparatus |
| CN113867200A (en) * | 2021-09-18 | 2021-12-31 | 周明祥 | Direction recognition module |
| RU2780630C1 (en) * | 2019-09-30 | 2022-09-28 | Сучжоу Инованс Технолоджи Ко., Лтд | Method, system and device for safe operation of elevator, carrier and protective devices |
-
2012
- 2012-05-15 CN CN 201220218653 patent/CN202643058U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197713A (en) * | 2015-10-10 | 2015-12-30 | 贵州天义电梯成套设备有限公司 | Protecting system for accidental moving of elevator car and protecting method thereof |
| CN105384018A (en) * | 2015-11-25 | 2016-03-09 | 苏州汾湖电梯科技有限公司 | Double-contact detection system for domestic lift door |
| CN111377323A (en) * | 2018-12-29 | 2020-07-07 | 蒂森克虏伯电梯（上海）有限公司 | Elevator safety device and elevator |
| WO2021062903A1 (en) * | 2019-09-30 | 2021-04-08 | 苏州汇川技术有限公司 | Safe operation method, system, and device for elevator, medium, and safety function apparatus |
| RU2780630C1 (en) * | 2019-09-30 | 2022-09-28 | Сучжоу Инованс Технолоджи Ко., Лтд | Method, system and device for safe operation of elevator, carrier and protective devices |
| CN113867200A (en) * | 2021-09-18 | 2021-12-31 | 周明祥 | Direction recognition module |
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