Electric locking and unlocking device for rotary table

Abstract

An electric locking and unlocking device for a rotary table relates to the technical field of rotary tables, when a rotary table rotor rotates until a locking hole of a locking block is coaxial with a locking pin, a button switch is pressed, a signal is sent to a motor driving chip through a control circuit, and the motor driving chip controls a piston rod of an electric push rod to extend outwards; therefore, the locking pin is inserted into the locking hole of the locking block, and the rotary table rotor and the rotary table stator are locked. When unlocking is needed, the button switch is pressed again, and the motor driving chip controls the piston rod of the electric push rod to retract inwards, so that the locking pin is separated from the locking hole, and unlocking of the rotary table rotor and the rotary table stator is achieved. The photoelectric rotary table is locked in the non-working and vehicle-mounted transportation process, and the situation that the rotary table is damaged due to the fact that the rotary table freely shakes along with external force factors is avoided. And meanwhile, manual locking is not needed, so that the use convenience and the locking efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rotating platform, in particular to a rotating platform electric locking and unlocking device. BACKGROUND

[0002] Optoelectronic rotating platform is more and more important in the monitoring and prevention of airports, especially for the monitoring and prevention of unmanned aerial vehicles. The development and application of optoelectronic rotating platform equipment not only can reduce the risks faced by airports, but also can diversify the reconnaissance means, increase the response ability, liberate people from the traditional telescope reconnaissance mode, and improve the survival ability of reconnaissance.

[0003] Since the rotating platform uses a torque motor without self-locking force, it needs to be manually locked by a manual lock when it is not working outdoors or during transportation, which is time-consuming and laborious. Moreover, due to the particularity of the environment in remote areas and high towers, it is impossible to manually lock the rotating platform by a manual lock. SUMMARY

[0004] The present application overcomes the above technical deficiencies and provides a device for realizing the electric locking and unlocking of a rotating platform.

[0005] The technical solution adopted by the present application to overcome the technical problems is:

[0006] A rotating platform electric locking and unlocking device, comprising:

[0007] A locking block mounted on a rotating platform rotor, the locking block being provided with a locking hole in a vertical direction;

[0008] An electric push rod mounted on a rotating platform stator, the axis of the electric push rod being arranged in a vertical direction, and the head end of the electric push rod being provided with a locking pin;

[0009] A motor driving chip, the output end of which is connected to the electric push rod;

[0010] A push button switch connected to the input end of the motor driving chip through a control circuit;

[0011] When the rotor is rotated to the same axis of the locking hole and the locking pin, the piston rod of the electric push rod is extended after the push button switch is pressed, and the locking pin is inserted into the locking hole.

[0012] Preferably, the above-mentioned motor driving chip is an L298p type motor driving chip.

[0013] Further, the locking micro switch is installed on the upper end of the rotary table stator, the unlocking micro switch is installed on the lower end of the rotary table stator, and the pusher is installed on the piston rod of the electric push rod, when the piston rod of the electric push rod is fully extended, the pusher moves up to trigger the locking micro switch, when the piston rod of the electric push rod is fully retracted, the pusher moves down to trigger the unlocking micro switch, the control circuit comprises a voltage isolation chip and a level inversion chip, the VCC pin of the level inversion chip is connected to the 5V power supply, the A pin of the level inversion chip is connected to the 2 pin of the button switch and the AF1+ pin of the voltage isolation chip respectively, the GND pin of the level inversion chip is grounded, the Y pin of the level inversion chip is grounded through the capacitor I and connected to the AF2+ pin of the voltage isolation chip respectively, the 3 pin of the button switch is grounded, the 1 pin of the button switch is connected to the 5V power supply, the GND pin of the voltage isolation chip is grounded, the Vcc pin of the voltage isolation chip is connected to the 5V power supply and grounded through the capacitor II respectively, the Vo1 pin of the voltage isolation chip is connected to the IN1 pin of the motor drive chip, the Vo2 pin of the voltage isolation chip is connected to the IN2 pin of the motor drive chip, the SENSEA pin, the SENSEB pin and the GND pin of the motor drive chip are grounded, the ENA pin of the motor drive chip is connected to the 5V power supply, the VS pin of the motor drive chip is connected to the 12V power supply and grounded through the capacitor IV respectively, the VSS_5V pin of the motor drive chip is connected to the 5V power supply and grounded through the capacitor III respectively, the OUTPUT1 pin of the motor drive chip is connected to the common terminal of the unlocking micro switch, the OUTPUT1 pin of the motor drive chip is connected to the common terminal of the locking micro switch, the normally closed terminal of the unlocking micro switch is connected to the positive electrode of the electric push rod, the normally open terminal of the unlocking micro switch is connected to the positive electrode of the diode I, the negative electrode of the diode I is connected to the positive electrode of the electric push rod, the normally closed terminal of the locking micro switch is connected to the negative electrode of the electric push rod, the normally open terminal of the locking micro switch is connected to the positive electrode of the diode II, and the negative electrode of the diode II is connected to the negative electrode of the electric push rod.

[0014] Preferably, the level inversion chip is NC7WZ04P6X type.

[0015] Preferably, the voltage isolation chip is EL0631 type.

[0016] Further, the A pin of the level inversion chip is connected to the 2 pin of the button switch through the resistor I.

[0017] Further, the AF1+ pin of the voltage isolation chip is connected to the 5V power supply through the resistor II, and the AF2+ pin of the voltage isolation chip is connected to the 5V power supply through the resistor III.

[0018] Further, the ENA pin of the voltage isolation chip is connected to the 5V power supply through the resistor IV.

[0019] The beneficial effects of this invention are as follows: When the turntable rotor rotates to the point where the locking hole of the locking block is coaxial with the locking pin, pressing the button switch sends a signal to the motor drive chip via the control circuit. The motor drive chip controls the piston rod of the electric push rod to extend outward, thereby inserting the locking pin into the locking hole of the locking block, thus locking the turntable rotor and the turntable stator. To unlock, pressing the button switch again causes the motor drive chip to control the piston rod of the electric push rod to retract inward, disengaging the locking pin from the locking hole and unlocking the turntable rotor and stator. This invention enables the photoelectric turntable to be locked when not in operation or during vehicle transport, preventing damage caused by free swaying due to external forces. Furthermore, it eliminates the need for manual locking, improving ease of use and locking efficiency. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present invention;

[0021] Figure 2 This is a circuit structure diagram of the present invention;

[0022] In the diagram: 1. Pushbutton switch; 2. Resistor I; 3. Level inverting chip; 4. Capacitor I; 5. Resistor II; 6. Resistor III; 7. Capacitor II; 8. Voltage isolation chip; 9. Resistor IV; 10. Motor drive chip; 11. Capacitor III; 12. Capacitor IV; 13. Unlocking microswitch; 14. Locking microswitch; 15. Diode I; 16. Diode II; 17. Electric actuator; 18. Paddle; 19. Locking pin; 20. Locking block; 21. Turntable rotor; 22. Turntable stator. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1 Appendix Figure 2 The present invention will be further described below.

[0024] The application discloses a rotary table electric locking and unlocking device, which comprises a locking block installed on a rotary table rotor 21, a locking hole being arranged in the locking block in a vertical direction; an electric push rod 17 installed on a rotary table stator 22, an axis of the electric push rod 17 being arranged in a vertical direction, and a locking pin 19 being installed at a head end of the electric push rod 17; a motor driving chip 10, an output end of which is connected to the electric push rod 17; a button switch 1, which is connected to an input end of the motor driving chip 10 through a control circuit; when the rotor 21 is rotated to the same axis of the locking hole and the locking pin 19, the piston rod of the electric push rod 17 is extended after the button switch 1 is pressed and the motor driving chip 10 is driven, and the locking pin 19 is inserted into the locking hole. When the rotary table needs to be locked, the rotor 21 of the rotary table can be accurately rotated to the position, so that the rotor 21 is rotated to the same axis of the locking hole of the locking block 20 and the locking pin 19, the button switch 1 is pressed at this time, a signal is sent to the motor driving chip 10 through the control circuit, the piston rod of the electric push rod 17 is extended outwards under the control of the motor driving chip 10, the locking pin 19 is inserted into the locking hole of the locking block 20, and the rotor 21 and the stator 22 are locked. When the rotary table needs to be unlocked, the button switch 1 is pressed again, the piston rod of the electric push rod 17 is retracted inwards under the control of the motor driving chip 10, the locking pin 19 is separated from the locking hole, and the rotor 21 and the stator 22 are unlocked. The rotary table is locked in a non-working state and a vehicle transportation process, and the rotary table is prevented from being damaged due to free shaking caused by external force factors. Meanwhile, manual locking is not needed, the convenience and locking efficiency are improved. Preferably, the electric push rod 17 is of an LA-TAJ type.

[0025] In an embodiment of the application, the motor driving chip 10 is an L298p type motor driving chip.

[0026] In an embodiment of the utility model, still include install on the locking micro -switch 14 of the upper end of rotary table stator 22, install on the unlocking micro -switch 13 of rotary table stator 22 lower extreme, install on the paddle 18 of electric push rod 17 piston rod, when the piston rod of electric push rod 17 all stretches out, paddle 18 moves to trigger locking micro -switch 14, when the piston rod of electric push rod 17 all retracts, paddle 18 moves to trigger unlocking micro -switch 13, control circuit includes voltage isolation chip 8 and level reverse chip 3, the VCC pin of level reverse chip 3 is connected to 5V power supply, its A pin is connected to the 2 pin of button switch 1 and voltage isolation chip 8 AF1- pin respectively, its GND pin is grounded, its Y pin is connected to voltage isolation chip 8 AF2- pin through capacitor I 4 grounding respectively, the 3 pin of button switch 1 is grounded, its 1 pin is connected to 5V power supply, the GND pin of voltage isolation chip 8 is grounded, its Vcc pin is connected to 5V power supply and is grounded through capacitor II 7 respectively, its Vo1 pin is connected to the IN1 pin of motor drive chip 10, its Vo2 pin is connected to the IN2 pin of motor drive chip 10, the SENSEA pin, SENSEB pin, GND pin of motor drive chip 10 are all grounded, its ENA pin is connected to 5V power supply, its VS pin is connected to 12V power supply and is grounded through capacitor IV 12 respectively, its VSS_5V pin is connected to 5V power supply and is grounded through capacitor III 11 respectively, the OUTPUT1 pin of motor drive chip 10 is connected to the common end of unlocking micro -switch 13, the OUTPUT1 pin of motor drive chip 10 is connected to the common end of locking micro -switch 14, the normally closed end of unlocking micro -switch 13 is connected to the anode of electric push rod 17, its normally open end is connected to the anode of diode I 15, the cathode of diode I 15 is connected to the anode of electric push rod 17, the normally closed end of locking micro -switch 14 is connected to the cathode of electric push rod 17, its normally open end is connected to the anode of diode II 16, the cathode of diode II 16 is connected to the cathode of electric push rod 17.When the user needs to lock, pressing button switch 1 sends a low level to the AF1- pin of level inverter chip 3 and voltage isolation chip 8. Level inverter 3 outputs a high level to the AF2- pin of voltage isolation chip 8. Voltage isolation chip 8 outputs a high level to the IN1 pin of motor driver chip 10 and a low level to the Vo2 pin of motor driver chip 10. Motor driver chip 10 outputs a DC12V+ to the common terminal of unlock micro switch 13. Since the lever 18 triggers unlock micro switch 13 in the initial state, the common terminal and normally open terminal of unlock micro switch 13 are connected, and the voltage passes through diode I 15 to the positive terminal of electric actuator 17. Motor driver chip outputs a DC12V+ to the common terminal of locking micro switch 14. Since the lever 18 does not trigger locking micro switch 14 in the initial state, the common terminal and normally closed terminal of locking micro switch 14 are connected, and the voltage passes through diode II 15 to the positive terminal of electric actuator 17. 16 supplies the negative terminal to the electric push rod 17, causing the electric push rod 17 to actuate until the locking pin 19 is inserted into the locking hole. After the locking pin 19 is inserted into the locking hole, the lever 18 triggers the locking micro switch 14, at which point the voltage of the entire system is disconnected, and the electric push rod 17 remains in its original state, that is, the locking pin 18 is inserted into the locking hole, maintaining the locked state. When the user needs to unlock, pressing button switch 1 sends a high level to the AF1- pin of level inverter chip 3 and voltage isolation chip 8. Level inverter 3 outputs a low level to the AF2- pin of voltage isolation chip 8. Voltage isolation chip 8 outputs a low level to the IN1 pin of motor driver chip 10, and the Vo2 pin of voltage isolation chip 8 outputs a high level to motor driver chip 10. Motor driver chip 10 outputs a DC12V+ to the common terminal of unlock micro switch 13. The common terminal and normally closed terminal of unlock micro switch 13 are connected, and the voltage passes through diode I 15 to the positive terminal of electric actuator 17. Motor driver chip 14 outputs a DC12V+ to the common terminal of locking micro switch 14. The common terminal and normally open terminal of locking micro switch 14 are connected, and the voltage passes through diode II 15 to the positive terminal of electric actuator 17. When the negative terminal of the electric actuator 17 is supplied by 16, the electric actuator 17 receives a negative DC 12V, thus reversing its action. The locking pin 19 disengages from the locking hole. When the lever 18 triggers the unlocking microswitch 13, the entire system voltage is disconnected, and the electric actuator 17 remains in its initial state (piston rod fully retracted), achieving unlocking. Furthermore, both the unlocking microswitch 13 and the locking microswitch 14 are DM1-02P-30-3 type microswitches. Diode I 15 and diode II 16 are both B560C type diodes.

[0027] In one embodiment of this utility model, the level inverting chip 3 is an NC7WZ04P6X type level inverting chip.

[0028] In one embodiment of this utility model, the voltage isolation chip 8 is an EL0631 type voltage isolation chip.

[0029] In one embodiment of this invention, pin A of the level inverting chip 3 is connected to pin 2 of the push-button switch 1 via resistor I2. Resistor I2 serves to limit the current of the high-level signal.

[0030] In one embodiment of this invention, the AF1+ pin of the voltage isolation chip 8 is connected to a 5V power supply via resistor II 5, and its AF2+ pin is connected to a 5V power supply via resistor III 6. Resistors II 5 and III 6 are both current-limiting resistors.

[0031] In one embodiment of this invention, the ENA pin of the voltage isolation chip 8 is connected to a 5V power supply via resistor IV 9. Resistor IV 9 is a pull-up resistor, continuously providing a high level to enable the motor drive chip 10.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A turntable electric locking and unlocking device, characterized in that, include: A locking block (20) is installed on the turntable rotor (21), and a locking hole is provided in the locking block (20) along the vertical direction; An electric push rod (17) is installed on the turntable stator (22). The axis of the electric push rod (17) is set in the vertical direction, and a locking pin (19) is installed at the head end of the electric push rod (17). The output of the motor drive chip (10) is connected to the electric push rod (17). The push-button switch (1) is connected to the input terminal of the motor drive chip (10) through the control circuit; When the rotating rotor (21) rotates to the same axis as the locking hole and the locking pin (19), after pressing the button switch (1), the motor drive chip (10) drives the piston rod of the electric push rod (17) to extend, and the locking pin (19) is inserted into the locking hole.

2. The turntable electric locking and unlocking device according to claim 1, characterized in that: The motor driver chip (10) is an L298p type motor driver chip.

3. The turntable electric locking and unlocking device according to claim 1, characterized in that: It also includes a locking micro switch (14) installed on the upper end of the turntable stator (22), an unlocking micro switch (13) installed on the lower end of the turntable stator (22), and a paddle (18) installed on the piston rod of the electric push rod (17). When the piston rod of the electric push rod (17) is fully extended, the paddle (18) moves up to trigger the locking micro switch (14). When the piston rod of the electric push rod (17) is fully retracted, the paddle (18) moves down to trigger the unlocking micro switch (13). The control circuit includes a voltage isolation chip (8) and a level inverting chip (3). The VCC pin of the level inverting chip (3) is connected to a 5V power supply. Its A pin is connected to pin 2 of the push button switch (1) and pin AF1 of the voltage isolation chip (8). Its GND pin is grounded. Its Y pin is grounded through capacitor I (4) and connected to pin AF2 of the voltage isolation chip (8). Pin 3 of the push button switch (1) is grounded. Its 1 pin is connected to a 5V power supply. The GND pin of the voltage isolation chip (8) is grounded. Its Vcc pin is connected to a 5V power supply and grounded through capacitor II (7). Its Vo1 pin is connected to the motor. The IN1 pin of the driver chip (10) and its Vo2 pin are connected to the IN2 pin of the motor driver chip (10). The SENSEA pin, SENSEB pin, and GND pin of the motor driver chip (10) are all grounded. Its ENA pin is connected to the 5V power supply. Its VS pin is connected to the 12V power supply and grounded through capacitor IV (12). Its VSS_5V pin is connected to the 5V power supply and grounded through capacitor III (11). The OUTPUT1 pin of the motor driver chip (10) is connected to the common terminal of the unlocking micro switch (13). The OUTPUT1 pin of the motor drive chip (10) is connected to the common terminal of the locking micro switch (14). The normally closed terminal of the unlocking micro switch (13) is connected to the positive terminal of the electric push rod (17), and its normally open terminal is connected to the positive terminal of diode I (15). The negative terminal of diode I (15) is connected to the positive terminal of the electric push rod (17). The normally closed terminal of the locking micro switch (14) is connected to the negative terminal of the electric push rod (17), and its normally open terminal is connected to the positive terminal of diode II (16). The negative terminal of diode II (16) is connected to the negative terminal of the electric push rod (17).

4. The turntable electric locking and unlocking device according to claim 3, characterized in that: The level inverting chip (3) is an NC7WZ04P6X type level inverting chip.

5. The turntable electric locking and unlocking device according to claim 3, characterized in that: The voltage isolation chip (8) is an EL0631 type voltage isolation chip.

6. The turntable electric locking and unlocking device according to claim 3, characterized in that: The A pin of the level inverting chip (3) is connected to the 2 pin of the push button switch (1) via resistor I (2).

7. The turntable electric locking and unlocking device according to claim 3, characterized in that: The AF1+ pin of the voltage isolation chip (8) is connected to a 5V power supply via resistor II (5), and its AF2+ pin is connected to a 5V power supply via resistor III (6).

8. The turntable electric locking and unlocking device according to claim 3, characterized in that: The ENA pin of the voltage isolation chip (8) is connected to a 5V power supply via resistor Ⅳ (9).

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