CN211549178U - Cabin door locking device at unmanned aerial vehicle airport - Google Patents
Cabin door locking device at unmanned aerial vehicle airport Download PDFInfo
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- CN211549178U CN211549178U CN201922425343.3U CN201922425343U CN211549178U CN 211549178 U CN211549178 U CN 211549178U CN 201922425343 U CN201922425343 U CN 201922425343U CN 211549178 U CN211549178 U CN 211549178U
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- schmidt trigger
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Abstract
A cabin door locking device of an unmanned aerial vehicle airport comprises a motor control unit, a transmission mechanism and a limiting unit; the motor control unit, the transmission mechanism and the limiting unit are sequentially connected; the motor control unit comprises a control circuit and a motor, wherein the control circuit is connected with the motor and is used for controlling the motor to rotate forwards and backwards and judging a limit state; the utility model can realize control by high and low level logic, has no complex logic and strong anti-interference capability; the locking position of marcing is adjustable, and is used portably the utility model discloses use limit switch to judge the state of marcing, the automatic stroke that targets in place stops, avoids unmanned aerial vehicle's magnetism sensing unit to receive strong magnetic interference and the unusual problem of work to appear, and the stroke is adjustable, and the range of application is wide.
Description
Technical Field
The utility model belongs to the technical field of door lock, in particular to door locking device at unmanned aerial vehicle airport.
Background
Due to the requirement of opening and closing the cabin door of the airport by the unmanned aerial vehicle, locking and unlocking should be controllable when the cabin door of the airport is closed and opened, and the safety of operation of the airport is ensured. The problem that the existing electromagnetic lock is used, so that a magnetic sensitive unit of the unmanned aerial vehicle is interfered by strong magnetism and works abnormally is solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a door locking device at unmanned aerial vehicle airport to solve above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a cabin door locking device of an unmanned aerial vehicle airport comprises a motor control unit, a transmission mechanism and a limiting unit; the motor control unit, the transmission mechanism and the limiting unit are sequentially connected;
the motor control unit comprises a control circuit and a motor, wherein the control circuit is connected with the motor and is used for controlling the motor to rotate forwards and backwards and judging a limit state;
the limiting unit comprises an upper limiting switch, a lower limiting switch and a limiting block; the limiting block is arranged on the transmission mechanism, the upper limiting switch and the lower limiting switch are symmetrically arranged, the limiting block is positioned between the upper limiting switch and the lower limiting switch, and the limiting block can move between the upper limiting switch and the lower limiting switch; the upper limit switch and the lower limit switch are both connected to the control circuit.
Further, drive mechanism includes gear, guide rail and lead screw, and the output of motor to and the one end of lead screw all are provided with the gear, two gear intermeshing, stopper bottom card is on the guide rail, and the one end threaded connection cover of stopper is established on the lead screw.
Furthermore, both ends of the lead screw are fixed through bearings.
Further, the control circuit of the upper limit switch 5 comprises a signal power supply 5V, a resistor R9, a schmitt trigger U4, an inverter U3, a resistor R11, an optocoupler U5, a resistor R12, a resistor R10 and a resistor R13; one end of the upper limit switch is connected with a signal power supply 5V, the other end of the upper limit switch is connected with a resistor R9 and a pin 1 of a Schmidt trigger U4, the other end of the resistor R9 is connected with a signal ground, a pin 3 of the Schmidt trigger U4 is connected with the signal ground, and a pin 5 of the Schmidt trigger U4 is connected with the signal power supply 5V; the control signal is connected with a pin 2 of an inverter U3, a pin 4 of the inverter U3 is connected with a resistor R11 and a pin 2 of a Schmidt trigger U4, a pin 3 of the inverter U3 is connected with a signal ground, a pin 5 of the inverter U3 is connected with a signal power supply 5V, and the other end of the resistor R11 is connected with the signal ground; a 4 pin of the Schmidt trigger U4 is connected with a 1 pin of the optical coupler U5, a 2 pin of the optical coupler U5 is connected with one end of a resistor R12, the other end of the resistor R12 is connected with a signal ground, a 4 pin of the optical coupler U5 is connected with one end of a resistor R10, the other end of the resistor R10 is connected with a driving power supply 24V, a 3 pin of the optical coupler U5 is connected with one end of a resistor R13, and the other end of the resistor R13 is connected with a driving ground; and 3 pins of the optical coupler U5 output unlocking signals.
Further, the control circuit of the lower limit switch 6 comprises a signal power supply 5V, a resistor R1, a schmitt trigger U1, a resistor R5, an optocoupler U2, a resistor R7, a resistor R4 and a resistor R8; one end of the lower limit switch is connected with a signal power supply 5V, the other end of the lower limit switch is connected with a resistor R1 and a pin 1 of a Schmidt trigger U1, the other end of the resistor R1 is connected with a signal ground, a pin 3 of the Schmidt trigger U1 is connected with the signal ground, and a pin 5 of the Schmidt trigger U1 is connected with the signal power supply 5V; the control signal is connected with the resistor R5 and the pin 2 of the Schmidt trigger U1, and the other end of the resistor R5 is connected with the signal ground; a 4 pin of the Schmidt trigger U1 is connected with a 1 pin of the optical coupler U2, a 2 pin of the optical coupler U2 is connected with one end of a resistor R7, the other end of the resistor R7 is connected with a signal ground, a 4 pin of the optical coupler U2 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with a driving power supply 24V, a 3 pin of the optical coupler U2 is connected with one end of a resistor R8, and the other end of the resistor R8 is connected with a driving ground; and 3 pins of the optical coupler U2 output locking signals.
Compared with the prior art, the utility model discloses there is following technological effect:
the utility model can realize control by high and low level logic, has no complex logic and strong anti-interference capability; the locking travel position is adjustable, and the application is simple and convenient.
The utility model discloses use limit switch to judge the state of marcing, the automatic stroke that targets in place stops, avoids unmanned aerial vehicle's magnetism sensitive unit to receive strong magnetic interference and the unusual problem of work to appear, and the stroke is adjustable, and the range of application is wide.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a perspective view of the present invention;
FIG. 4 is a driving portion control circuit;
FIG. 5 is a lower limit switch control circuit;
FIG. 6 is an upper limit switch control circuit;
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
referring to fig. 1 to 6, a hatch locking device for an unmanned aerial vehicle airport includes a motor control unit, a transmission mechanism and a limiting unit; the motor control unit, the transmission mechanism and the limiting unit are sequentially connected;
the motor control unit comprises a control circuit and a motor, wherein the control circuit is connected with the motor 2 and is used for controlling the motor to rotate forwards and backwards and judging a limiting state;
the limiting unit comprises an upper limiting switch 5, a lower limiting switch 6 and a limiting block 3; the limiting block 3 is arranged on the transmission mechanism, the upper limiting switch 5 and the lower limiting switch 6 are symmetrically arranged, the limiting block 3 is positioned between the upper limiting switch 5 and the lower limiting switch 6, and the limiting block 3 can move between the upper limiting switch 5 and the lower limiting switch 6; the upper limit switch 5 and the lower limit switch 6 are both connected to the control circuit.
Drive mechanism includes gear 1, guide rail 4 and lead screw 7, and the output of motor to and the one end of lead screw all is provided with the gear, two gear intermeshing, stopper bottom card is on guide rail 4, and the one end threaded connection cover of stopper 3 is established on lead screw 7.
Both ends of the lead screw are fixed through bearings.
The control circuit of the upper limit switch 5 comprises a signal power supply 5V, a resistor R9, a Schmidt trigger U4, an inverter U3, a resistor R11, an optical coupler U5, a resistor R12, a resistor R10 and a resistor R13; one end of the upper limit switch is connected with a signal power supply 5V, the other end of the upper limit switch is connected with a resistor R9 and a pin 1 of a Schmidt trigger U4, the other end of the resistor R9 is connected with a signal ground, a pin 3 of the Schmidt trigger U4 is connected with the signal ground, and a pin 5 of the Schmidt trigger U4 is connected with the signal power supply 5V; the control signal is connected with a pin 2 of an inverter U3, a pin 4 of the inverter U3 is connected with a resistor R11 and a pin 2 of a Schmidt trigger U4, a pin 3 of the inverter U3 is connected with a signal ground, a pin 5 of the inverter U3 is connected with a signal power supply 5V, and the other end of the resistor R11 is connected with the signal ground; a 4 pin of the Schmidt trigger U4 is connected with a 1 pin of the optical coupler U5, a 2 pin of the optical coupler U5 is connected with one end of a resistor R12, the other end of the resistor R12 is connected with a signal ground, a 4 pin of the optical coupler U5 is connected with one end of a resistor R10, the other end of the resistor R10 is connected with a driving power supply 24V, a 3 pin of the optical coupler U5 is connected with one end of a resistor R13, and the other end of the resistor R13 is connected with a driving ground; and 3 pins of the optical coupler U5 output unlocking signals.
The control circuit of the lower limit switch 6 comprises a signal power supply 5V, a resistor R1, a Schmidt trigger U1, a resistor R5, an optocoupler U2, a resistor R7, a resistor R4 and a resistor R8; one end of the lower limit switch is connected with a signal power supply 5V, the other end of the lower limit switch is connected with a resistor R1 and a pin 1 of a Schmidt trigger U1, the other end of the resistor R1 is connected with a signal ground, a pin 3 of the Schmidt trigger U1 is connected with the signal ground, and a pin 5 of the Schmidt trigger U1 is connected with the signal power supply 5V; the control signal is connected with the resistor R5 and the pin 2 of the Schmidt trigger U1, and the other end of the resistor R5 is connected with the signal ground; a 4 pin of the Schmidt trigger U1 is connected with a 1 pin of the optical coupler U2, a 2 pin of the optical coupler U2 is connected with one end of a resistor R7, the other end of the resistor R7 is connected with a signal ground, a 4 pin of the optical coupler U2 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with a driving power supply 24V, a 3 pin of the optical coupler U2 is connected with one end of a resistor R8, and the other end of the resistor R8 is connected with a driving ground; and 3 pins of the optical coupler U2 output locking signals.
Taking the locking-unlocking process as an example, the control flow is as follows:
and (3) locking process:
1) inputting an external control signal ctrl low level, outputting a lock low level and an unlock high level after being isolated by a logic gate (an inverter and a Schmitt trigger both belong to the logic gate, the same below) and an optical coupler, and enabling a motor to move in the forward direction;
2) the motor moves to drive the transmission mechanism to move, and the push rod ascends at the moment;
3) when the push rod rises to the locking position, the limiting block can press and contact an upper limiting switch (SW-UP) to be conducted, and the UP-lmt signal is at a high level;
4) when the up-lmt signal is at a high level, the output of the U4 is disabled, so that unlock is at a default low level, and at the moment, lock is also at a low level, the motor stops moving, and locking is completed;
an unlocking process:
5) inputting an external control signal ctrl high level, outputting a lock high level and an unlock low level (the lock is still disabled before motion and the default low level) after being isolated by a logic gate and an optical coupler, and reversely moving the motor;
6) the motor moves to drive the transmission mechanism to move, at the moment, the push rod descends, the upper limit switch (SW-UP) is switched off, and the UP-lmt signal is at a low level;
7) when the push rod is lowered to the unlocking position, the limiting block can press a lower limiting switch (SW-DOWN) to be conducted, and the DOWN-lmt signal is at a high level;
8) when the down-lmt signal is at a high level, the output of the U1 is disabled, so that the lock is at a default low level, the unlock is also at a low level, the motor stops moving, and the unlocking is completed.
Claims (5)
1. A cabin door locking device of an unmanned aerial vehicle airport is characterized by comprising a motor control unit, a transmission mechanism and a limiting unit; the motor control unit, the transmission mechanism and the limiting unit are sequentially connected;
the motor control unit comprises a control circuit and a motor, wherein the control circuit is connected with the motor (2) and is used for controlling the motor to rotate forwards and backwards and judging a limiting state;
the limiting unit comprises an upper limiting switch (5), a lower limiting switch (6) and a limiting block (3); the limiting block (3) is arranged on the transmission mechanism, the upper limiting switch (5) and the lower limiting switch (6) are symmetrically arranged, the limiting block (3) is positioned between the upper limiting switch (5) and the lower limiting switch (6), and the limiting block (3) can move between the upper limiting switch (5) and the lower limiting switch (6); the upper limit switch (5) and the lower limit switch (6) are both connected to the control circuit.
2. The device of claim 1, wherein the transmission mechanism comprises a gear (1), a guide rail (4) and a screw (7), the output end of the motor and one end of the screw are provided with gears, the two gears are meshed with each other, the bottom of the limiting block is clamped on the guide rail (4), and one end of the limiting block (3) is sleeved on the screw (7) in a threaded connection manner.
3. The device of claim 1, wherein both ends of the screw are fixed by bearings.
4. The device of claim 1, wherein the control circuit of the upper limit switch (5) comprises a signal power source 5V, a resistor R9, a schmidt trigger U4, an inverter U3, a resistor R11, an optocoupler U5, a resistor R12, a resistor R10 and a resistor R13; one end of the upper limit switch is connected with a signal power supply 5V, the other end of the upper limit switch is connected with a resistor R9 and a pin 1 of a Schmidt trigger U4, the other end of the resistor R9 is connected with a signal ground, a pin 3 of the Schmidt trigger U4 is connected with the signal ground, and a pin 5 of the Schmidt trigger U4 is connected with the signal power supply 5V; the control signal is connected with a pin 2 of an inverter U3, a pin 4 of the inverter U3 is connected with a resistor R11 and a pin 2 of a Schmidt trigger U4, a pin 3 of the inverter U3 is connected with a signal ground, a pin 5 of the inverter U3 is connected with a signal power supply 5V, and the other end of the resistor R11 is connected with the signal ground; a 4 pin of the Schmidt trigger U4 is connected with a 1 pin of the optical coupler U5, a 2 pin of the optical coupler U5 is connected with one end of a resistor R12, the other end of the resistor R12 is connected with a signal ground, a 4 pin of the optical coupler U5 is connected with one end of a resistor R10, the other end of the resistor R10 is connected with a driving power supply 24V, a 3 pin of the optical coupler U5 is connected with one end of a resistor R13, and the other end of the resistor R13 is connected with a driving ground; and 3 pins of the optical coupler U5 output unlocking signals.
5. The device for locking the hatch door of an unmanned aerial vehicle airport according to claim 1, wherein the control circuit of the lower limit switch (6) comprises a signal power supply 5V, a resistor R1, a Schmidt trigger U1, a resistor R5, an optical coupler U2, a resistor R7, a resistor R4 and a resistor R8; one end of the lower limit switch is connected with a signal power supply 5V, the other end of the lower limit switch is connected with a resistor R1 and a pin 1 of a Schmidt trigger U1, the other end of the resistor R1 is connected with a signal ground, a pin 3 of the Schmidt trigger U1 is connected with the signal ground, and a pin 5 of the Schmidt trigger U1 is connected with the signal power supply 5V; the control signal is connected with the resistor R5 and the pin 2 of the Schmidt trigger U1, and the other end of the resistor R5 is connected with the signal ground; a 4 pin of the Schmidt trigger U1 is connected with a 1 pin of the optical coupler U2, a 2 pin of the optical coupler U2 is connected with one end of a resistor R7, the other end of the resistor R7 is connected with a signal ground, a 4 pin of the optical coupler U2 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with a driving power supply 24V, a 3 pin of the optical coupler U2 is connected with one end of a resistor R8, and the other end of the resistor R8 is connected with a driving ground; and 3 pins of the optical coupler U2 output locking signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922425343.3U CN211549178U (en) | 2019-12-28 | 2019-12-28 | Cabin door locking device at unmanned aerial vehicle airport |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922425343.3U CN211549178U (en) | 2019-12-28 | 2019-12-28 | Cabin door locking device at unmanned aerial vehicle airport |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211549178U true CN211549178U (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922425343.3U Active CN211549178U (en) | 2019-12-28 | 2019-12-28 | Cabin door locking device at unmanned aerial vehicle airport |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211549178U (en) |
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2019
- 2019-12-28 CN CN201922425343.3U patent/CN211549178U/en active Active
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