CN213415949U - Hydraulic goods ladder control circuit - Google Patents
Hydraulic goods ladder control circuit Download PDFInfo
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- CN213415949U CN213415949U CN202021771450.8U CN202021771450U CN213415949U CN 213415949 U CN213415949 U CN 213415949U CN 202021771450 U CN202021771450 U CN 202021771450U CN 213415949 U CN213415949 U CN 213415949U
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Abstract
The utility model provides a hydraulic goods elevator control circuit, which comprises a rectifier bridge module, an alternating current contactor, a control module, a control power supply, an emergency stop switch, a flat layer switch, a safety lock switch and a safety lock, wherein the emergency stop switch is connected at the joint of the control power supply and the control module to stop the power supply of the control power supply to the control module, the positive pole of the safety lock is connected with one end of the emergency stop switch connected with the control power supply, the safety lock switch is connected between the positive pole of the safety lock and one end of the emergency stop switch connected with the control power supply, and the negative pole of the safety lock, the flat layer switch and the contact are sequentially connected, the utility model provides a hydraulic goods elevator control circuit, the electric power of the safety lock is taken out from an elevator control system, no additional power supply is needed to control the safety lock, the circuit design reduces the material cost, and the, the market competitiveness is improved.
Description
Technical Field
The utility model relates to an elevator field, in particular to hydraulic pressure goods ladder control circuit.
Background
In order to ensure the safety of the elevator, the hydraulic goods elevator is provided with the safety door, and the power supply of the safety door usually needs to be additionally provided with a power supply at present, so that the circuit design cost is higher, and the market competitiveness is lower.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a hydraulic pressure goods lift control circuit, the electric power of emergency exit acquires from the control power supply of elevator, does not need to increase a power in addition, has reduced material cost, has increased market competition.
The hydraulic goods elevator control circuit is used for controlling a hydraulic motor, an electromagnetic valve and a safety door, wherein the hydraulic motor is connected with a hydraulic cylinder to inject hydraulic oil into the hydraulic cylinder to push the hydraulic goods elevator to move upwards, the electromagnetic valve is connected with the hydraulic cylinder to discharge the hydraulic oil from the hydraulic cylinder to drive the hydraulic goods elevator to move downwards, the hydraulic goods elevator control circuit comprises a rectifier bridge module, an alternating current contactor, a control module, a control power supply, an emergency stop switch, a flat bed switch, a safety lock switch and a safety lock, the rectifier bridge module is connected with the electromagnetic valve to supply power to the electromagnetic valve, the normally open end of the alternating current contactor is connected with the hydraulic motor to control the starting and stopping of the hydraulic motor, the control module comprises a descending module and an ascending module, the descending module is connected with the rectifier bridge module to control whether the rectifier bridge module supplies power to the electromagnetic valve or not, the utility model discloses a safety door safety lock, including safety door, ascending module, control module, emergency stop switch, safety lock, flat bed switch and contact ground, ascending module with alternating current contactor's coil is connected with control whether the normally open end of alternating current contactor is closed, control power supply with control module is connected in order to give the control module power supply, emergency stop switch connects control power supply with control module's junction stops control power supply to control module's power supply, the safety lock is used for control opening and closing of safety door, the positive pole of safety lock with emergency stop switch connects control power supply's one end is connected, safety lock switch is used for control the circular telegram state of safety lock, safety lock switch connects the positive pole of safety lock with emergency stop switch connects between control power supply's the one end, the negative pole.
According to the utility model discloses a hydraulic pressure goods ladder control circuit has following beneficial effect at least: the electric power of the safety lock is taken out from the elevator control system, and an additional power supply is not needed to control the safety lock, so that the material cost is reduced by the circuit design, the price of the elevator can be reduced, and the market competitiveness is improved.
According to some embodiments of the utility model, the decline module includes decline button, first relay, first travel switch and decline pilot lamp, the decline button the coil of first relay with the normally closed end of first travel switch connects gradually, the coil of first relay with the first normally open end of first relay has formed self-locking loop, the decline pilot lamp is connected the coil of first relay with the junction of the normally open end of first relay, the normally open end of second of first relay is connected rectifier bridge module with control between the solenoid valve open and stop of solenoid valve.
According to some embodiments of the utility model, the module that rises includes rise button, second relay, second travel switch and rising pilot lamp, rise the button the coil of second relay with the normally closed end of second travel switch connects gradually, the coil of second relay with the first normally open end of second relay has formed self-locking loop, the pilot lamp that rises is connected the coil of second relay with the junction of the first normally open end of second relay, the first normally closed end of second relay is connected descend the button with in order to avoid between the coil of first relay rise the module with descend the module simultaneous working, the second normally open end of first relay with ac contactor's coil is connected with control whether ac contactor's coil is circular telegram.
According to some embodiments of the invention, the first normally closed end of the first relay is connected between the lifting button and the coil of the second relay to avoid simultaneous operation of the lifting module and the lowering module.
According to the utility model discloses a some embodiments still include first floor display control module, first floor display control module includes the third relay, the coil of third relay with first travel switch's the end of opening is normally connected, the coil of third relay with the second of third relay is normally opened and is formed self-locking circuit.
According to some embodiments of the utility model, still include first floor display module, first floor display module includes the first floor pilot lamp, the first end of normally opening of third relay with the first floor pilot lamp is connected with control opening of first floor pilot lamp stops.
According to the utility model discloses a some embodiments still include second floor display control module, second floor display control module includes the fourth relay, the coil of fourth relay with the normal open end of second travel switch is connected, the coil of fourth relay the first normally closed end of third relay with the second of fourth relay normally open end has formed self-locking loop.
According to some embodiments of the utility model, still include second floor display module, second floor display module includes the second floor pilot lamp, the first end of opening always of fourth relay with the second floor pilot lamp is connected with control opening of second floor pilot lamp stops.
According to some embodiments of the invention, the first normally closed end of the fourth relay is connected between the coil of the third relay and the second normally open end of the third relay to avoid the first floor display module and the second floor display module working simultaneously.
According to some embodiments of the utility model, still include emergency stop indicating module, including emergency stop pilot lamp and fifth relay, the emergency stop switch with fifth relay coil is connected, the first open end of fifth relay the second normally closed end of first relay the second normally closed end of second relay with the coil of fifth relay connects gradually and has formed series connection auto-lock loop, the emergency stop pilot lamp is connected to the coil of fifth relay with the junction of the second normally closed end of second relay.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic diagram of a hydraulic cargo lift control circuit according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a portion of a hydraulic cargo lift control circuit according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of another part of a hydraulic cargo lift control circuit according to an embodiment of the present invention;
reference numerals:
rectifier bridge module T, AC contactor KM, control power supply 105, emergency stop switch 101, leveling switch 103, safety lock switch 102, safety lock 100, hydraulic motor 104, solenoid valve 106, phase sequence protector 107, coil KA1 of first relay, first normally open end KA1.1 of first relay, second normally open end KA1.2 of first relay, first normally closed end KA1.3 of first relay, second normally closed end KA1.4 of first relay, coil KA2 of second relay, first normally open end KA2.1 of second relay, second normally open end KA2.2 of second relay, first normally closed end KA2.3 of second relay, second normally closed end KA2.4 of second relay, coil KA3 of third relay, first normally open end 3.1 of third relay, second normally open end 3.2 of third relay, first normally closed end 3.3 of third relay, coil KA3.3 of fourth relay, coil KA 35 KA1.1 of fourth relay, coil 361 of fourth relay, The second normally open end KA4.2 of the fourth relay, the first normally closed end KA4.3 of the fourth relay, the coil KA5 of the fifth relay, the first normally open end KA5.1 of the fifth relay, the emergency stop indicator lamp L1, the first floor indicator lamp L2, the second floor indicator lamp L3, the display panel L4, the descent indicator lamp L5, the ascent indicator lamp L6, the descent button SB1, the ascent button SB2, the normally closed end SQ1.1 of the first travel switch, the normally open end SQ1.2 of the first travel switch, the normally closed end SQ2.1 of the second travel switch, and the normally open end SQ2.2 of the second travel switch.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by referring to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless explicitly defined otherwise, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.
Referring to fig. 1-3, a hydraulic freight elevator control circuit according to an embodiment of the present invention is used for controlling a hydraulic motor 104, a solenoid valve 106 and a safety door, the hydraulic motor 104 connects a hydraulic cylinder to inject hydraulic oil into the hydraulic cylinder to push the hydraulic freight elevator to move upwards, the solenoid valve 106 connects the hydraulic cylinder to discharge the hydraulic oil from the hydraulic cylinder to drive the hydraulic freight elevator to move downwards, and the hydraulic freight elevator control circuit includes a rectifier bridge module T, an ac contactor KM, a control module, a control power supply 105, an emergency stop switch 101, a leveling switch 103, a safety lock switch 102 and a safety lock 100, the rectifier bridge module T is connected with the solenoid valve 106 to supply power to the solenoid valve 106, a normally open end of the ac contactor KM is connected with the hydraulic motor 104 to control start and stop of the hydraulic motor 104, the control module includes a descending module and an ascending module, the descending module is connected with the rectifier bridge module T to control whether the rectifier bridge, the ascending module is connected with a coil of the alternating current contactor KM to control whether a normally-open end of the alternating current contactor KM is closed or not, the control power source 105 is connected with the control module to supply power to the control module, the emergency stop switch 101 is connected at the joint of the control power source 105 and the control module to stop the power supply of the control power source 105 to the control module, the safety lock 100 is used for controlling the opening and closing of the safety door, the positive pole of the safety lock 100 is connected with one end, connected with the control power source 105, of the emergency stop switch 101, the safety lock switch 102 is used for controlling the power-on state of the safety lock 100, the safety lock switch 102 is connected between the positive pole of the safety lock 100 and one end, connected with the control power source 105.
In the embodiment, the electric power of the safety lock 100 is taken out from the elevator control system, and no additional power supply is needed to control the safety lock 100, so that the circuit design reduces the material cost, the selling price of the elevator can be reduced, and the market competitiveness is improved, in addition, the elevator adopts the hydraulic motor 104, the working mode of the hydraulic motor 104 is that high-pressure oil is filled into the oil cylinder so as to push the piston, and then the goods elevator is pushed through the piston, a user can control the position of the goods elevator only by controlling the high-pressure oil in the oil cylinder, the electric box comprises the alternating current contactor KM and the electromagnetic valve 106, the alternating current contactor KM is used for controlling the hydraulic motor 104 to fill oil into the oil cylinder, the electromagnetic valve 106 is used for discharging the oil in the oil cylinder, the alternating current contactor KM and the electromagnetic valve 106 work independently, if one of the alternating current contactor KM and the electromagnetic valve 106 fails, the other one, the safety performance is higher.
Further, a phase sequence protector 107 is also included, and the phase sequence protector 107 is connected with the hydraulic motor 104.
In this embodiment, the phase sequence protector 107 can prevent the hydraulic motor 104 from being burnt out due to a phase error, and can ensure the safety of the motor.
Further, the descending module includes descending button SB1, first relay, first travel switch and decline pilot lamp L5, descending button SB1, the coil KA1 of first relay and the normally closed end SQ1.1 of first travel switch connect gradually, the coil KA1 of first relay and the first normally open end KA1.1 of first relay have formed self-locking circuit, decline pilot lamp L5 connects the junction at the coil KA1 of first relay and the normally open end of first relay, the second normally open end KA1.2 of first relay connects between rectifier bridge module T and solenoid valve 106 with the start-stop of control solenoid valve 106.
In this embodiment, when a user presses down the descending button SB1, the coil KA1 of the first relay is energized, the second normally open end KA1.2 of the first relay is closed, the electromagnetic valve 106 starts to work, and the elevator starts to descend, because the first normally open end KA1.1 of the first relay and the coil KA1 of the first relay form a self-locking loop, the user only needs to press down the descending button SB1, the descending module can work normally, when the elevator descends to a certain position, the first normally closed end SQ1.1 of the first travel switch is disconnected, the coil KA1 of the first relay is powered off, and the descending module stops working.
Further, the ascending module comprises an ascending button SB2, a second relay, a second travel switch and an ascending indicator light L6, the ascending button SB2, a coil KA2 of the second relay and a normally closed end SQ2.1 of the second travel switch are sequentially connected, the coil KA2 of the second relay and the normally closed end KA2.1 of the second relay form a self-locking loop, the ascending indicator light L6 is connected at the joint of the coil KA2 of the second relay and the normally closed end KA2.1 of the second relay, the normally closed end KA2.3 of the second relay is connected between the descending button SB1 and the coil KA1 of the first relay to prevent the ascending module and the descending module from working simultaneously, and the normally closed end KA1.2 of the first relay is connected with a coil of the AC contactor KM to control whether the coil of the AC contactor KM is electrified or not.
In this embodiment, when a user presses the rising button SB2, the coil KA2 of the second relay is energized, the second normally open end KA2.2 of the second relay is closed, the coil of the ac contactor KM is energized, the normally open end of the ac contactor KM is closed, the hydraulic motor 104 starts to operate, the elevator starts to rise, since the first normally open end KA2.1 of the second relay and the coil KA2 of the second relay form a self-locking loop, the user only needs to press the rising button SB2, the rising module can operate normally, when the elevator rises to a certain position, the first normally closed end SQ2.2 of the second travel switch is disconnected, the coil KA2 of the second relay is powered off, and the falling module stops operating.
Further, the display panel L4 is also included, the display panel L4 is connected in parallel with the ascending indicator light L6, and the display panel L4 is connected in parallel with the descending indicator light L5.
In this embodiment, the ascending indicator light L6 and the descending indicator light L5 are both displayed on the display panel L4, when the ascending indicator light L6 or the descending indicator light L5 needs to operate, the display panel L4 is turned on, and when the ascending indicator light L6 or the descending indicator light L5 does not operate, the display panel L4 is turned off, so as to achieve the purpose of saving energy.
Further, the first normally closed terminal KA1.3 of the first relay is connected between the up button SB2 and the coil KA2 of the second relay to prevent the up module and the down module from operating simultaneously.
In the embodiment, the circuit design can avoid the simultaneous operation of the ascending module and the descending module, thereby improving the safety of the elevator.
Further, the first floor display control module comprises a third relay, a coil KA3 of the third relay is connected with a normally open end SQ1.2 of the first travel switch, and a coil KA3 of the third relay and a second normally open end KA3.2 of the third relay form a self-locking loop.
Further, the first floor display module comprises a first floor indicator light L2, and the first normally open end KA3.1 of the third relay is connected with the first floor indicator light L2 to control the start and stop of the first floor indicator light L2.
In this embodiment, the first floor display module is controlled by the first floor display control module, and when the elevator arrives at the first floor, the first floor indicator light L2 will automatically light up.
Further, the automatic control device comprises a second floor display control module, the second floor display control module comprises a fourth relay, a coil KA4 of the fourth relay is connected with a normally open end SQ2.2 of the second travel switch, and a coil KA4 of the fourth relay, a first normally closed end KA3.3 of the third relay and a second normally open end KA4.2 of the fourth relay form a self-locking loop.
In this embodiment, the first normally closed terminal KA3.3 of the third relay is connected between the coil KA4 of the fourth relay and the second normally open terminal KA4.2 of the fourth relay, so that the simultaneous operation of the first floor display module and the second floor display module can be avoided.
Further, the second floor display module comprises a second floor indicating lamp L3, and the first normally open end KA4.1 of the fourth relay is connected with the second floor indicating lamp L3 to control the start and stop of the second floor indicating lamp L3.
In this embodiment, the second floor display module is controlled by the second floor display control module, and when the elevator arrives at the second floor, the second floor indicator light L3 will automatically light up.
Further, the first normally closed terminal KA4.3 of the fourth relay is connected between the coil KA3 of the third relay and the second normally open terminal KA3.2 of the third relay to prevent the first floor display module and the second floor display module from operating simultaneously.
Further, still include the scram indicating module, including scram pilot lamp L1 and fifth relay, scram switch 101 is connected with the fifth relay coil, the first normally open end KA5.1 of fifth relay, the second normally closed end KA1.4 of first relay, the second normally closed end KA2.4 of second relay and the coil KA5 of fifth relay connect gradually and have formed series connection self-locking loop, scram pilot lamp L1 is connected to the junction of the coil KA5 of fifth relay and the second normally closed end KA2.3 of second relay.
In this embodiment, when the user presses the emergency stop indication module, the emergency stop indication lamp L1 will be activated, the first normally open end KA5.1 of the fifth relay, the second normally closed end KA1.4 of the first relay, the second normally closed end KA2.3 of the second relay, and the coil KA5 of the fifth relay are sequentially connected to form a serial self-locking loop, so that the user can press the emergency stop switch 101 only, and the emergency stop indication module can work normally.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (10)
1. The utility model provides a hydraulic pressure goods lift control circuit for control hydraulic motor, solenoid valve and emergency exit, hydraulic motor connects the pneumatic cylinder in order to promote to pour into hydraulic oil into in the pneumatic cylinder hydraulic pressure goods lift rebound, the pneumatic cylinder is connected in order with hydraulic oil drives from discharging in the pneumatic cylinder hydraulic pressure goods lift rebound, its characterized in that includes:
the rectifier bridge module is connected with the electromagnetic valve to supply power to the electromagnetic valve;
the normally open end of the alternating current contactor is connected with the hydraulic motor to control the start and stop of the hydraulic motor;
the control module comprises a descending module and an ascending module, the descending module is connected with the rectifier bridge module to control whether the rectifier bridge module supplies power to the electromagnetic valve, and the ascending module is connected with a coil of the alternating current contactor to control whether a normally-open end of the alternating current contactor is closed;
the control power supply is connected with the control module to supply power to the control module;
the emergency stop switch is connected at the connection part of the control power supply and the control module to stop the power supply of the control power supply to the control module;
the safety lock is used for controlling the opening and closing of the safety door, and the positive electrode of the safety lock is connected with one end of the emergency stop switch, which is connected with the control power supply;
the safety lock switch is used for controlling the power-on state of the safety lock, and the safety lock switch is connected between the positive electrode of the safety lock and one end, connected with the control power supply, of the emergency stop switch;
and the negative electrode of the safety lock, the leveling switch and the contact ground are sequentially connected.
2. The hydraulic goods elevator control circuit as claimed in claim 1, wherein the descending module comprises a descending button, a first relay, a first travel switch and a descending indicator light, the descending button, a coil of the first relay and a normally closed end of the first travel switch are sequentially connected, the coil of the first relay and a first normally open end of the first relay form a self-locking loop, the descending indicator light is connected to a joint of the coil of the first relay and a normally open end of the first relay, and a second normally open end of the first relay is connected between the rectifier bridge module and the solenoid valve to control the on/off of the solenoid valve.
3. The hydraulic freight elevator control circuit of claim 2, wherein the lift module includes a lift button, a second relay, a second travel switch, and a lift indicator light, the ascending button, the coil of the second relay and the normally closed end of the second travel switch are connected in sequence, the coil of the second relay and the first normally open end of the second relay form a self-locking loop, the ascending indicator lamp is connected to the junction of the coil of the second relay and the first normally open end of the second relay, a first normally closed terminal of the second relay is connected between the down button and a coil of the first relay to prevent the up module and the down module from operating simultaneously, the second normally-open end of the first relay is connected with the coil of the alternating current contactor so as to control whether the coil of the alternating current contactor is electrified or not.
4. The hydraulic freight elevator control circuit of claim 3, wherein the first normally closed end of the first relay is connected between the up button and the coil of the second relay to prevent simultaneous operation of the up module and the down module.
5. The hydraulic cargo lift control circuit according to claim 3, further comprising a first floor display control module, wherein the first floor display control module comprises a third relay, a coil of the third relay is connected with the normally open end of the first travel switch, and a coil of the third relay and a second normally open end of the third relay form a self-locking loop.
6. The hydraulic goods elevator control circuit of claim 5, further comprising a first floor display module, wherein the first floor display module comprises a first floor indicator light, and the first normally open end of the third relay is connected to the first floor indicator light to control the on/off of the first floor indicator light.
7. The hydraulic cargo lift control circuit according to claim 5, further comprising a second floor display control module, wherein the second floor display control module comprises a fourth relay, a coil of the fourth relay is connected with the normally open end of the second travel switch, and the coil of the fourth relay, the first normally closed end of the third relay and the second normally open end of the fourth relay form a self-locking loop.
8. The hydraulic goods elevator control circuit of claim 7, further comprising a second floor display module, wherein the second floor display module comprises a second floor indicator light, and the first normally open end of the fourth relay is connected to the second floor indicator light to control the on/off of the second floor indicator light.
9. The hydraulic freight elevator control circuit of claim 8, wherein the first normally closed terminal of the fourth relay is connected between the coil of the third relay and the second normally open terminal of the third relay to prevent simultaneous operation of the first floor display module and the second floor display module.
10. The hydraulic freight elevator control circuit as defined in claim 3, further comprising an emergency stop indication module including an emergency stop indicator lamp and a fifth relay, wherein the emergency stop switch is connected to the fifth relay coil, the first normally open end of the fifth relay, the second normally closed end of the first relay, the second normally closed end of the second relay and the coil of the fifth relay are sequentially connected to form a series self-locking loop, and the emergency stop indicator lamp is connected to a junction of the coil of the fifth relay and the second normally closed end of the second relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021771450.8U CN213415949U (en) | 2020-08-21 | 2020-08-21 | Hydraulic goods ladder control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021771450.8U CN213415949U (en) | 2020-08-21 | 2020-08-21 | Hydraulic goods ladder control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213415949U true CN213415949U (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021771450.8U Active CN213415949U (en) | 2020-08-21 | 2020-08-21 | Hydraulic goods ladder control circuit |
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| CN (1) | CN213415949U (en) |
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- 2020-08-21 CN CN202021771450.8U patent/CN213415949U/en active Active
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