CN209976429U - Rolling door circuit driven by direct current rolling door machine and capable of rebounding when meeting resistance - Google Patents
Rolling door circuit driven by direct current rolling door machine and capable of rebounding when meeting resistance Download PDFInfo
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- CN209976429U CN209976429U CN201821660151.XU CN201821660151U CN209976429U CN 209976429 U CN209976429 U CN 209976429U CN 201821660151 U CN201821660151 U CN 201821660151U CN 209976429 U CN209976429 U CN 209976429U
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Abstract
A roller shutter door circuit driven by a direct current roller shutter door machine and capable of rebounding when encountering a resistance comprises a main circuit, a control circuit, a brake circuit and a rebounding circuit when encountering a resistance; the main circuit comprises a direct-current power supply, a main switch, a normally open first contact and a normally open second contact of an uplink relay, a normally open first contact and a normally open second contact of a downlink relay and a direct-current door roller motor; the control circuit comprises an uplink control circuit and a downlink control circuit; the brake circuit comprises a brake electromagnetic coil; the resistance-encountering rebound circuit comprises a normally-open microswitch and a resistance-encountering rebound relay. The utility model discloses when the barrier was touched to in-process door curtain bottom is closed to the rolling slats door, enable direct current rolling slats door machine stall and reversal, drive the door curtain and go upward, make the barrier avoid damaging, protection property and personnel safety, circuit reliable operation.
Description
Technical Field
The utility model relates to a rolling slats door technical field especially relates to a can meet rolling slats door circuit that hinders bounce-back by direct current rolling slats door machine driven.
Background
Electric rolling doors are widely used in storefronts, garages, markets and other places, and generally, a rolling door machine mounted on a support plate drives a winding drum to rotate when the electric rolling door is lifted, and the winding drum drives a door curtain wound on the winding drum to slide up and down along guide rails on two sides of a door opening to open and close the door. An existing electric rolling door is driven by a direct-current rolling door machine, the direct-current rolling door machine generally comprises a gearbox, a direct-current rolling door machine motor, a brake device and a rear shell cover, and the brake device is provided with a brake electromagnetic coil and is used for braking the direct-current rolling door machine; the back shell cover is internally provided with a circuit element. The electric rolling door is generally provided with a limiter for automatically stopping the door curtain at preset positions of the upper part and the lower part of a door opening when the door curtain is opened and closed, and the general rolling door has no automatic stop function midway, so that the rolling door cannot automatically stop when being closed, an obstacle can be crushed or personnel can be injured, potential safety hazards exist, and the rolling door can be damaged. In order to overcome the above problems, a conventional roller shutter door adopting a touch device at the bottom of a door curtain needs a set of reliable operation circuit, and when the door curtain is closed and moves downwards, if the bottom of the door curtain contacts an obstacle, the touch device acts to enable a direct current roller shutter driving the roller shutter door to rotate reversely, and the door curtain moves upwards instead, so that the obstacle is prevented from being damaged, and property and personnel safety is protected.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a can meet the rolling slats door circuit that hinders the bounce-back by direct current rolling slats door machine driven, when the rolling slats door touches the barrier closing in-process door curtain bottom, enables direct current rolling slats door machine stall and reversal, drives the door curtain and goes upward, makes the barrier avoid damaging, protection property and personnel safety, circuit reliable operation.
The utility model discloses a realize through following technical scheme:
a rolling door circuit driven by a direct current rolling door machine and capable of rebounding when meeting a resistance comprises a main circuit, a control circuit and a brake circuit; the main circuit comprises a direct-current power supply, a main switch, a normally open first contact and a normally open second contact of an uplink relay, a normally open first contact and a normally open second contact of a downlink relay and a direct-current door roller motor; the control circuit comprises an uplink control circuit and a downlink control circuit, wherein a normally open uplink button is arranged in the uplink control circuit, and a normally open downlink button is arranged in the downlink control circuit;
also comprises a resistance bounce circuit; the resistance-encountering rebound circuit comprises a normally-open microswitch and a resistance-encountering rebound relay; the two ends of the normally open microswitch and the coil of the relay which rebounds when meeting resistance are connected in series are respectively connected with the positive output end and the negative output end of the main switch; and the normally closed first contact of the resistance-encountering rebound relay is connected in series between the normally open downlink button and the downlink relay coil, and the normally open second contact of the resistance-encountering rebound relay is connected in parallel with the normally open uplink button.
Furthermore, the main switch is a double-pole single-throw switch, and two ends of the input end of the main switch are respectively connected with the anode and the cathode of the direct-current power supply; the input ends of a normally open first contact and a normally open second contact of the uplink relay are respectively connected with the positive output end and the negative output end of the main switch, and the output ends of the normally open first contact and the normally open second contact are respectively connected with the positive input end and the negative input end of the direct current door roller motor; the input ends of a normally open first contact and a normally open second contact of the downlink relay are respectively connected with the positive output end and the negative output end of the main switch, and the output ends of the normally open first contact and the normally open second contact are respectively connected with the negative input end and the positive input end of the direct-current door rolling machine motor.
Further, the brake circuit comprises a brake electromagnetic coil connected between the positive input end and the negative input end of the direct current door roller motor.
Further, the uplink control circuit comprises a positive output end of the main switch, a normally closed stop button, a normally open uplink button, a normally closed third contact of the downlink relay, a normally closed upper limit travel switch, an uplink relay coil and a negative output end of the main switch which are sequentially connected in series; the two ends of the normally open uplink button are connected with a normally open fourth contact of the uplink relay in parallel; the downlink control circuit comprises a positive output end of the main switch, a normally closed stop button, a normally open downlink button, a normally closed third contact of the uplink relay, a normally closed lower limit travel switch, a downlink relay coil and a negative output end of the main switch which are sequentially connected in series; and the two ends of the normally open downlink button are connected with a normally open fourth contact of the downlink relay in parallel.
Further, the voltage of the direct current power supply is 24V. 24V is a common safe direct current voltage.
Furthermore, two ends of the coil of the uplink relay and the coil of the downlink relay are reversely connected with diodes in parallel. The reverse parallel diode plays a role in restraining and absorbing reverse electromotive force of coils of the uplink relay and the downlink relay.
Furthermore, the output end of the main switch is connected with a fuse in series. The circuit is protected.
The utility model has the advantages that: the normally closed first contact of the bounce-resisting relay is connected in series between the normally open downlink button and the downlink relay coil, the normally open second contact of the bounce-resisting relay is connected in parallel with the normally open uplink button, when the bottom of the door curtain of the rolling door is in contact with an obstacle in the closing process, the direct-current rolling door machine can stop running and rotate reversely, the door curtain is driven to uplink, the obstacle is prevented from being damaged, the property and personnel safety are protected, and the circuit works reliably.
Drawings
Fig. 1 is a circuit diagram of the present invention.
Detailed Description
As shown in fig. 1, an embodiment of the present invention is a roller shutter door circuit driven by a dc roller shutter door capable of rebounding when encountering a resistance, including a main circuit, a control circuit, a brake circuit and a rebounding circuit when encountering a resistance; the main circuit comprises a direct-current power supply, a main switch K, a normally open first contact KA1-1 and a normally open second contact KA1-2 of an uplink relay KA1, a normally open first contact KA2-1 and a normally open second contact KA2-2 of a downlink relay KA2 and a direct-current door rolling machine motor M; the main switch K is a double-pole single-throw switch, and two ends of the input end of the main switch K are respectively connected with the positive pole and the negative pole of the direct-current power supply; the input ends of a normally open first contact KA1-1 and a normally open second contact KA1-2 of the ascending relay KA1 are respectively connected with the positive output end and the negative output end of the main switch K, and the output ends are respectively connected with the positive input end and the negative input end of the direct current door roller motor M; the input ends of a normally open first contact KA2-1 and a normally open second contact KA2-2 of the downlink relay KA2 are respectively connected with the positive output end and the negative output end of the main switch K, and the output ends are respectively connected with the negative input end and the positive input end of the direct current door roller motor M;
the control circuit comprises an uplink control circuit and a downlink control circuit;
the uplink control circuit comprises an anode output end of a main switch K, a normally closed stop button SB3, a normally open uplink button SB1, a downlink relay KA2 normally closed third contact KA2-3, a normally closed upper limit travel switch SQ1, an uplink relay KA1 coil and a cathode output end of the main switch K which are sequentially connected in series; two ends of the normally open up button SB1 are connected in parallel with a normally open fourth contact KA1-4 of an up relay KA 1;
the downlink control circuit comprises a positive output end of a main switch K, a normally closed stop button SB3, a normally open downlink button SB2, a normally closed third contact KA1-3 of an uplink relay KA1, a normally closed lower limit travel switch SQ2, a downlink relay KA2 coil and a negative output end of the main switch K which are sequentially connected in series; two ends of the normally open downlink button SB2 are connected in parallel with a normally open fourth contact KA2-4 of a downlink relay KA 2;
the brake circuit comprises a brake electromagnetic coil YA connected between the positive input end and the negative input end of the direct current door roller motor M;
the resistance-encountering rebound circuit comprises a normally-open microswitch SQ3 and a resistance-encountering rebound relay KA 3; the two ends of the normally open microswitch SQ3 and the coil of the resistance rebound relay KA3 which are connected in series are respectively connected with the anode output end and the cathode output end of the main switch K; the normally closed first contact KA3-1 of the resistance rebound relay KA3 is connected in series between the normally open downlink button SB2 and the downlink relay KA2 coil, and the normally open second contact KA3-2 of the resistance rebound relay KA3 is connected in parallel with the normally open uplink button SB 1.
When the roller shutter door is opened, the main switch K is closed, the normally open up button SB1 is pressed, the coil of the up relay KA1 is electrified and sucked, the normally open first contact KA1-1 and the normally open second contact KA1-2 are both closed, the brake electromagnetic coil YA is electrified to open the brake, the main circuit is also connected, the motor M of the direct current roller shutter door is electrified to drive the direct current roller shutter door to drive the roller to rotate, and the roller drives the door curtain wound on the roller to move up to open the roller shutter door; after the coil of the up relay KA1 is electrified, the normally open fourth contact KA1-4 is also closed to carry out parallel self-locking on the normally open up button SB1 to maintain the on state of the up control circuit, the normally closed third contact KA1-3 is opened to cut off the down control circuit to protect the down control circuit, at the moment, even if the normally open down button SB2 is pressed, the coil of the down relay KA2 can not be electrified, and the down relay KA2 can not generate misoperation; if the roller shutter door needs to stop moving upwards in midway, a normally closed stop button SB3 is pressed, the coil of an upward relay KA1 loses power, normally open contacts of the coil all recover to be normally open, normally closed of the coil recovers to be normally closed, a main circuit and a brake circuit lose power, a motor M of the direct-current roller shutter door loses power and stops running, a brake electromagnetic coil YA loses power, and a brake device brakes the direct-current roller shutter door; when the door curtain reaches the upper limit position, the normally closed upper limit travel switch SQ1 is triggered, the normally closed upper limit travel switch SQ1 is turned off to cut off the upward control circuit, and the door curtain can be automatically stopped when reaching the upper limit position.
When the roller shutter door is closed, the main switch K is closed, the normally open downlink button SB2 is pressed, the downlink relay KA2 is powered on to act, the normally open first contact KA2-1 and the normally open second contact KA2-2 are both closed, the brake electromagnetic coil YA is powered on to open the brake, the main circuit is also switched on, the motor M of the direct current roller shutter door is powered on to drive the direct current roller shutter door to drive the roller to rotate, and the roller drives the roller shutter door wound on the roller to move downwards to close the roller shutter door; after the coil of the downlink relay KA2 is electrified, the normally open fourth contact KA2-4 is also closed to carry out parallel self-locking on the normally open downlink button SB2 to maintain the connection state of the downlink control circuit, the normally closed third contact KA2-3 is opened to cut off the uplink control circuit to protect the uplink control circuit, at the moment, even if the normally open uplink button SB1 is pressed, the coil of the uplink relay KA1 cannot be electrified, and the uplink relay KA1 cannot generate misoperation; if the roller shutter door needs to stop moving downwards midway, a normally closed stop button SB3 is pressed, the coil of a descending relay KA2 loses power, normally open contacts of the coil all recover to be normally open, normally closed of the coil recovers to be normally closed, a main circuit and a brake circuit lose power, a motor M of the direct-current roller shutter door loses power and stops running, a brake electromagnetic coil YA loses power, and a brake device brakes the direct-current roller shutter door; when the door curtain reaches the lower limit position, the normally closed lower limit travel switch SQ2 is triggered, the normally closed lower limit travel switch SQ2 is turned off to cut off the descending control circuit, and the door curtain can be automatically stopped when reaching the lower limit position.
In the process of closing the roller shutter door, if the bottom of the roller shutter door touches an obstacle, a normally open microswitch SQ3 arranged in a triggering device at the bottom of the roller shutter door is closed, a rebound resistance circuit is switched on, a rebound resistance relay KA3 coil is electrified, the normally closed first contact KA3-1 is disconnected to cut off the descending control circuit, the motor M of the direct current door roller stops driving the door curtain to descend when power is lost, meanwhile, the normally open second contact KA3-2 of the resistance rebound relay KA3 is closed to connect the ascending control circuit, the coil of the ascending relay KA1 is electrified to connect the main circuit, so that the motor M of the direct current door roller is electrified to reverse and drive the door curtain to ascend, after the door curtain ascends, when the trigger device leaves the barrier, the normally open microswitch SQ3 is normally open again, the circuit is cut off when encountering resistance and rebounding, the coil of the relay KA3 loses power when encountering resistance and rebounding, the normally open second contact KA3-2 is normally open, and the normally closed first contact KA3-1 is normally closed; at this time, the normally open second contact KA3-2 of the resistance rebound relay KA3 is recovered to be normally open, so that the uplink control circuit cannot be cut off, and after the uplink control circuit is switched on, the normally open fourth contact KA1-4 of the uplink relay KA1 is closed to maintain the switching-on state of the uplink control circuit, so that the door curtain can move upwards all the time until the upper limit position is reached, and the normally closed upper limit travel switch SQ1 can not be stopped.
In this embodiment, the voltage of the dc power supply is 24V. 24V is a common safe direct current voltage.
In this embodiment, diodes D1 and D2 are connected in parallel at two ends of the coil of the up relay KA1 and the down relay KA2 in a reverse direction. The anti-parallel diodes D1 and D2 play a role in restraining and absorbing back electromotive force of coils of the up relay KA1 and the down relay KA 2.
In this embodiment, the output end of the main switch K is connected in series with a fuse FU. The circuit is protected.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (7)
1. A rolling door circuit driven by a direct current rolling door machine and capable of rebounding when meeting a resistance comprises a main circuit, a control circuit and a brake circuit; the main circuit comprises a direct-current power supply, a main switch, a normally open first contact and a normally open second contact of an uplink relay, a normally open first contact and a normally open second contact of a downlink relay and a direct-current door roller motor; the control circuit comprises an uplink control circuit and a downlink control circuit, wherein a normally open uplink button is arranged in the uplink control circuit, and a normally open downlink button is arranged in the downlink control circuit; the method is characterized in that:
also comprises a resistance bounce circuit; the resistance-encountering rebound circuit comprises a normally-open microswitch and a resistance-encountering rebound relay; the two ends of the normally open microswitch and the coil of the relay which rebounds when meeting resistance are connected in series are respectively connected with the positive output end and the negative output end of the main switch; and the normally closed first contact of the resistance-encountering rebound relay is connected in series between the normally open downlink button and the downlink relay coil, and the normally open second contact of the resistance-encountering rebound relay is connected in parallel with the normally open uplink button.
2. A door roller circuit driven by a dc door roller capable of resistive bounce, as claimed in claim 1, wherein: the main switch is a double-pole single-throw switch, and two ends of the input end of the main switch are respectively connected with the anode and the cathode of the direct-current power supply; the input ends of a normally open first contact and a normally open second contact of the uplink relay are respectively connected with the positive output end and the negative output end of the main switch, and the output ends of the normally open first contact and the normally open second contact are respectively connected with the positive input end and the negative input end of the direct current door roller motor; the input ends of a normally open first contact and a normally open second contact of the downlink relay are respectively connected with the positive output end and the negative output end of the main switch, and the output ends of the normally open first contact and the normally open second contact are respectively connected with the negative input end and the positive input end of the direct-current door rolling machine motor.
3. A door roller circuit driven by a dc door roller capable of resistive bounce, as claimed in claim 1, wherein: the brake circuit comprises a brake electromagnetic coil connected between the positive input end and the negative input end of the direct current door roller motor.
4. A door roller circuit driven by a dc door roller capable of resistive bounce, as claimed in claim 1, wherein: the uplink control circuit comprises a positive output end of the main switch, a normally closed stop button, a normally open uplink button, a normally closed third contact of the downlink relay, a normally closed upper limit travel switch, an uplink relay coil and a negative output end of the main switch which are sequentially connected in series; the two ends of the normally open uplink button are connected with a normally open fourth contact of the uplink relay in parallel; the downlink control circuit comprises a positive output end of the main switch, a normally closed stop button, a normally open downlink button, a normally closed third contact of the uplink relay, a normally closed lower limit travel switch, a downlink relay coil and a negative output end of the main switch which are sequentially connected in series; and the two ends of the normally open downlink button are connected with a normally open fourth contact of the downlink relay in parallel.
5. A door roller circuit driven by a dc door roller capable of resistive bounce, as claimed in claim 1, wherein: the voltage of the direct current power supply is 24V.
6. A door roller circuit driven by a dc door roller capable of resistive bounce, as claimed in claim 1, wherein: and two ends of the coil of the uplink relay and the coil of the downlink relay are reversely connected with diodes in parallel.
7. A door roller circuit driven by a dc door roller capable of resistive bounce, as claimed in claim 1, wherein: the output end of the main switch is connected in series with a fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821660151.XU CN209976429U (en) | 2018-10-14 | 2018-10-14 | Rolling door circuit driven by direct current rolling door machine and capable of rebounding when meeting resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821660151.XU CN209976429U (en) | 2018-10-14 | 2018-10-14 | Rolling door circuit driven by direct current rolling door machine and capable of rebounding when meeting resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209976429U true CN209976429U (en) | 2020-01-21 |
Family
ID=69249691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821660151.XU Expired - Fee Related CN209976429U (en) | 2018-10-14 | 2018-10-14 | Rolling door circuit driven by direct current rolling door machine and capable of rebounding when meeting resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209976429U (en) |
-
2018
- 2018-10-14 CN CN201821660151.XU patent/CN209976429U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 Termination date: 20211014 |