CN208279210U - Crane remote control detects resetting apparatus, remote control system and crane automatically - Google Patents
Crane remote control detects resetting apparatus, remote control system and crane automatically Download PDFInfo
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- CN208279210U CN208279210U CN201820695840.8U CN201820695840U CN208279210U CN 208279210 U CN208279210 U CN 208279210U CN 201820695840 U CN201820695840 U CN 201820695840U CN 208279210 U CN208279210 U CN 208279210U
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Abstract
The utility model provides a kind of crane remote control and detects resetting apparatus automatically, comprising: power supply, the normal open switch of the first relay, the normal open switch of the second relay, third relay, the time relay, the first breaker；First relay is used to detect the open state of first motor, and second relay is used to detect the open state of the second motor；The first motor replaces the oil pump opened to drive speed reducer in crane hoisting mechanism with the control signal that second motor is used to send according to remote-receiver.The open state of the first motor and second motor alternately opened by detection, when detecting that two motors simultaneously close off, then remote signal is lost, and then the power supply for controlling remote-receiver disconnects conducting realization and automatically resets, it is time saving and energy saving, avoid the influence and existing security risk that cannot be resetted in time Dao Zhi to job schedule.
Description
Technical field
The utility model belongs to crane control system technical field, is to be related to a kind of crane remote control more specifically
System detects resetting apparatus, remote control system and crane automatically.
Background technique
Wireless remote control technology is widely used in crane control field, and each mechanism operation of crane is all to pass through operator
Remote-controlled launcher is controlled to remote-receiver transmission remote signal on ground to complete.Remote-receiver is received by institute
Remote signal is sent to each mechanism of crane, control crane operation.Since steel-making environment is complicated, remote signal by scene its
The factors such as his communication signal, smelting equipment and steel body structure are interfered, and can be lost suddenly in remote signal transmission process, be caused to be remotely controlled
All relay switches of reception device all discharge, and the total A.C. contactor of distribution of connection crane general supply also jumps electricity, rise
Heavy-duty machine enters power-off lost contact state, is unable to normal received signal.Existing troubleshooting mode: failure notification, operator are connected to
Member hurries to the scene, and carries out power-off power-on servicing to remote-receiver to realize its reset, crane resumes operation.Operation
Process needs complete for 10-15 minutes, wastes time, will in addition if the failure of dropout occurs when crane for hoisting ladle
Manufacturing schedule is directly affected, while ladle stops to there is also security risks in the air.
Utility model content
The purpose of this utility model is to provide a kind of crane remote control detect automatically resetting apparatus, remote control system and
Crane, it is intended to which remote-receiver cannot reset caused influence production in time after solving remote signal loss in the prior art
Progress and there are problems that security risk.
To achieve the above object, the utility model embodiment provides a kind of crane remote control and detects reset dress automatically
Set, comprising: power supply, the normal open switch of the first relay, the normal open switch of the second relay, third relay, the time relay,
First breaker；
First relay is used to detect the open state of first motor, and second relay is for detecting the second electricity
The open state of machine；
The first motor replaces unlatching with the control signal that second motor is used to send according to remote-receiver
To drive the oil pump of speed reducer in crane hoisting mechanism；
The crane remote control is detected automatically in the first branch of resetting apparatus, and the anode of the power supply passes through described
The normal open switch of first relay, the normal open switch of second relay, the third relay coil connect the electricity
The cathode in source, and the coil of the normal open switch of first relay and the third relay is connected in series, described first
The normal open switch of relay and the normal open switch of second relay are connected in parallel；
In second branch, normally closed switch, the time relay of the anode of the power supply by the third relay
Coil connect the cathode of the power supply, and the coil string of the normally closed switch of the third relay and the time relay
Connection connection；
In third branch, the anode of the power supply passes through first breaker, the time-delay closing of the time relay
It switchs, the power input of the normal open switch of third relay connection remote-receiver, and first breaker
It is connected in series with the delay turn-off switch of the time relay, the delay turn-off switch of the time relay and the third
The normal open switch of relay is connected in parallel.
Further, it further includes that the 4th the normally closed of relay is opened that the crane remote control detects resetting apparatus automatically
It closes；
4th relay is used to detect the folding condition of the total contactor of distribution；
In the second branch, the normally closed switch of the 4th relay, the normally closed switch of the third relay and institute
The coil for stating the time relay is connected in series.
Further, it further includes counter that the crane remote control detects resetting apparatus automatically；
The counter is connect with the both ends of the normally closed switch of the third relay, for losing number to remote signal
It is counted.
Further, it further includes alarm that the crane remote control detects resetting apparatus automatically；
The parallel connection of coil of the alarm and the time relay, for issuing police when remote signal is lost
Report.
Further, in the first branch, the anode of the power supply is connected by the normal open switch of first relay
One end of the coil of the third relay is connect, the other end of the coil of the third relay connects the cathode of the power supply,
The normal open switch of first relay and the normal open switch of second relay are connected in parallel.
Further, in the third branch, the anode of the power supply connects the time by first breaker
One end of the delay turn-off switch of relay, the other end connection remote control reception dress of the delay turn-off switch of the time relay
The power input set, the delay turn-off switch of the time relay is in parallel with the normal open switch of the third relay to be connected
It connects.
Further, it further includes the second breaker that the crane remote control detects resetting apparatus automatically；
The normal open switch of first relay, the normally closed switch of the third relay, first breaker are logical
Second breaker is crossed to connect with the anode of the power supply；
Second breaker is for power supply described in on-off.
Further, the power supply is independent current source.
The utility model embodiment also provides a kind of crane remote control, including crane described in any of the above embodiments is distant
Control system detects resetting apparatus and remote-receiver, remote-controlled launcher automatically；
The remote-controlled launcher is used to obtain the instruction of operator's input and is wirelessly transmitted to described instruction described
Remote-receiver；
The remote-receiver is used to receive the described instruction that the remote-receiver is sent, and described instruction is sent out
It is sent to the distribution system and electric drive system of crane.
The utility model embodiment also provides a kind of crane, including the crane remote control and power distribution system
System, electric drive system；
The distribution system is used to provide power supply for the electric drive system；
The electric drive system includes lifting mechanism, cart and wheeling mechanism, motor, for being vertically moved up or down and
Horizontal carrying heavy goods.
Crane remote control provided by the embodiment of the utility model detects resetting apparatus, remote control system and crane automatically
Beneficial effect be: compared with prior art, the utility model crane remote control detects resetting apparatus automatically, comprising:
Power supply, the normal open switch of the first relay, the normal open switch of the second relay, third relay, the time relay, the first open circuit
Device；First relay is used to detect the open state of first motor, and second relay is for detecting the second motor
Open state；The first motor replaces unlatching with the control signal that second motor is used to send according to remote-receiver
To drive the oil pump of speed reducer in crane hoisting mechanism.The first motor alternately opened by detection and second electricity
The open state of machine, when detecting that two motors simultaneously close off, then remote signal is lost, and then controls remote-receiver
Power supply, which disconnects conducting, to be realized and automatically resets, time saving and energy saving, avoid the influence that cannot reset in time Dao Zhi to job schedule with
And existing security risk.
Detailed description of the invention
Fig. 1 is that a kind of circuit that crane remote control detects resetting apparatus automatically provided by the embodiment of the utility model shows
It is intended to；
Fig. 2 is the electricity that a kind of crane remote control that another embodiment of the utility model provides detects resetting apparatus automatically
Road schematic diagram；
Fig. 3 is the circuit diagram of the member control circuit of crane in the prior art；
Fig. 4 is the electricity that a kind of crane remote control that another embodiment of the utility model provides detects resetting apparatus automatically
Road schematic diagram；
Fig. 5 is a kind of structural block diagram of crane provided by the embodiment of the utility model.
Appended drawing reference: remote-controlled launcher 1, remote-receiver 2 are automatic to detect resetting apparatus 3, distribution system 4, electric power
Dragging system 5, counter 6, alarm 7, the positive L of power supply, the cathode N of power supply, the normal open switch K1 of the first relay, second
The normal open switch K2 of relay, the coil K3 of third relay, the normally closed switch K3-1 of third relay, third relay it is normal
Switch K3-2, the coil KT of the time relay, the retarded closing switch KT-1 of the time relay, the first circuit breaker Q 1, the 4th
The normally closed switch K4 of relay, the coil KM of the total contactor of distribution, the normal open switch KM-1 of the total contactor of distribution, remote control are opened
Switch K801 is remotely controlled shutdown switch K800, remote-control motor change-over switch K802, and first motor controls the coil KY1 of relay, the
The coil KY2 of two motor control relays.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of crane remote control detects resetting apparatus 3 automatically, wrap
Include: power supply, the normal open switch K1 of the first relay, the normal open switch K2 of the second relay, third relay, the time relay,
First circuit breaker Q 1；
First relay is used to detect the open state of first motor, and second relay is for detecting the second electricity
The open state of machine；
The first motor replaces unlatching with the control signal that second motor is used to send according to remote-receiver
To drive the oil pump of speed reducer in crane hoisting mechanism；
When the first motor is opened or is stopped, the normal open switch closing or opening of first relay, described second
When motor is opened or is stopped, the normal open switch closing or opening of second relay；
The crane remote control is detected automatically in the first branch of resetting apparatus 3, and the positive L of the power supply passes through
The normal open switch K1 of first relay, the normal open switch K2 of second relay, the third relay coil K3
The cathode N of the power supply is connected, and the coil K3 of the normal open switch K1 of first relay and the third relay goes here and there
Connection connection, the normal open switch K1 of first relay and the normal open switch K2 of second relay are connected in parallel；
In second branch, the positive L of the power supply by the normally closed switch K3-1 of the third relay, the time after
The coil KT of electric appliance connects the cathode N of the power supply, and the normally closed switch K3-1 of the third relay and the time after
The coil KT of electric appliance is connected in series；
In third branch, the positive L of the power supply is closed by the delay of first circuit breaker Q 1, the time relay
Make and break closes, the power input of the normal open switch K3-2 connection remote-receiver 2 of the third relay, and described first
The delay turn-off switch of circuit breaker Q 1 and the time relay is connected in series, the delay turn-off switch of the time relay with
The normal open switch K3-2 of the third relay is connected in parallel.
Optionally, in the first branch, the positive L of the power supply is connected by the normal open switch K1 of first relay
One end of the coil K3 of the third relay is connect, the other end of the coil K3 of the third relay connects the negative of the power supply
Pole N, the normal open switch K1 of first relay and the normal open switch K2 of second relay are connected in parallel.
Optionally, in the third branch, the positive L of the power supply connects the time by first circuit breaker Q 1
One end of the delay turn-off switch of relay, the other end connection remote control reception dress of the delay turn-off switch of the time relay
Set 2 power input, the normal open switch K3-2 of the delay turn-off switch of the time relay and the third relay is simultaneously
Connection connection.
As shown in figure 3, the control circuit of crane includes at least the total contactor branch of distribution of distribution system 4 in the prior art
Road, the Oil pump electrical machinery controlling brancher of speed reducer and for cutting off the power in the lifting mechanism lifting mechanism of electric drive system 5
Third breaker；
In the total contactor branch of distribution, remote control shutdown switch K800 is total by remote control unlatching switch K801 connection distribution
The coil KM of contactor, the normal open switch KM-1 of the total contactor of distribution are in parallel with remote control unlatching switch K801；
When crane works normally, the open signal that remote-controlled launcher 1 is sent is sent to by remote-receiver 2
The total contactor branch of distribution, the remote control shutdown switch K800 is closed the remote control and opens switch K801 closure, described to match
The coil KM of electric total contactor obtains electric, the normal open switch KM-1 closure of the total contactor of distribution, and the total contactor of distribution is real
Existing self-locking, the distribution system 4 of crane is started by the control of the total contactor of the distribution as the power supply of electric drive system 5.Remote control
When dropout, switch K801 and the total contactor of the distribution are opened in the remote control shutdown switch K800 release, the remote control
Normal open switch KM-1 discharges, and the coil KM power loss of the total contactor of distribution, the distribution system 4 of crane stops dragging to electric power
Dynamic system 5 is powered, and crane stops working.
In the Oil pump electrical machinery controlling brancher, remote-control motor change-over switch K802 controls relay with first motor respectively
The coil KY2 series connection of coil KY1, the second motor control relay；
When crane works normally, the switch conversion signal that remote-controlled launcher 1 is sent is sent by remote-receiver 2
To the Oil pump electrical machinery controlling brancher, make the coil KY1 of first motor control relay, the coil of the second motor control relay
KY2 replaces electric, even if the first motor replaces unlatching with second motor.Remote signal remote-control motor when losing
Change-over switch K802 release, the coil KY1 of the first motor control relay and the line of the second motor control relay
The equal power loss of KY2 is enclosed, the first motor stops working with second motor.
Optionally, the coil of first relay can control the coil KY1 of relay simultaneously with the first motor
Connection, the coil of second relay can be in parallel with the coil KY2 of the second motor control relay therefore described distant
Control motor change-over switch K802 gates the coil KY1 of first motor control relay, disconnect second motor control after
When the coil KY2 of electric appliance, the coil of first relay obtains electric, the normal open switch K1 closure of first relay simultaneously,
The normal open switch K2 of the coil losing electricity of second relay, second relay is disconnected.
Any position in the control loop of the first motor can also be arranged in the coil of first relay
The open state of the first motor is detected, similarly, second motor can also be arranged in the coil of second relay
Control loop in any position detect the open state of second motor.
Due to crane remote-receiver 2, there are inductive loads for internal circuit, need 8 to 10 seconds initialization times,
So ensure that 2 normal initialization of remote-receiver by the way that the time relay is arranged.
The crane remote control detects the course of work of resetting apparatus 3 automatically are as follows: opens crane general supply, closure
First circuit breaker Q 1, when the remote control system communication of crane is normal, the first motor replaces out with second motor
Open the oil pump to drive speed reducer in crane hoisting mechanism, thus in the first branch for detect the first motor with it is described
The normal open switch K2 of the normal open switch K1 of first relay of second motor open state and second relay is phase
Opposite state, i.e., when a closure, another is disconnected, the coil K3 of the third relay obtain it is electric, the described in second branch
The normally closed switch K3-1 of three relays is disconnected, the coil KT power loss of the time relay, in third branch, the third after
The normal open switch K3-2 of electric appliance is closed, and the retarded closing switch KT-1 of the time relay is disconnected, the remote-receiver
It obtains electric；When the remote signal of crane remote control is lost, the first motor stops working with second motor, and first
The normal open switch K2 of the normal open switch K1 of first relay described in branch and second relay is off-state, described
The coil K3 power loss of third relay, third relay described in second branch normally closed switch K3-1 closure, the time after
The coil KT of electric appliance obtains electric, the normal open switch K3-2 disconnection of third relay described in third branch, the time relay
It is closed after retarded closing switch KT-1 delay scheduled time, the remote-receiver must be electric after powering off the predetermined time, real
Show and automatically reset, the predetermined time can be set as being more than or equal to 10 seconds.
Crane remote control provided by the embodiment of the utility model detects resetting apparatus 3, remote control system and lifting automatically
The beneficial effect of machine is: compared with prior art, the utility model crane remote control detects resetting apparatus 3 automatically, packet
Include: power supply, the normal open switch K1 of the first relay, the normal open switch K2 of the second relay, third relay, the time relay,
First circuit breaker Q 1；First relay is used to detect the open state of first motor, and second relay is for detecting
The open state of second motor；The control that the first motor and second motor are used to be sent according to remote-receiver is believed
It number alternately opens to drive the oil pump of speed reducer in crane hoisting mechanism.By detection alternately open the first motor with
The open state of second motor, when detecting that two motors simultaneously close off, then remote signal is lost, and then controls remote control
The power supply of reception device 2, which disconnects conducting, to be realized and automatically resets, time saving and energy saving, avoid caused by cannot resetting in time to work into
The influence of degree and existing security risk.
Further, as shown in Fig. 2, the crane remote control detect automatically resetting apparatus 3 further include the 4th after
The normally closed switch K4 of electric appliance；
4th relay is used to detect the folding condition of the total contactor of distribution；
In the second branch, the normally closed switch K3- of the normally closed switch K4 of the 4th relay, the third relay
1 is connected in series with the coil KT of the time relay.
Optionally, the coil of the 4th relay can be connected in parallel with the coil KM of the total contactor of the distribution.
When crane works normally, the coil KM of the coil of the 4th relay and the total contactor of the distribution is simultaneously
Obtain electric, the normally closed switch K4 disconnection of the 4th relay.
It is not cut in time if maloperation occurs in remote-control motor change-over switch K802 described in Oil pump electrical machinery controlling brancher
It changes, then the coil KY1 and the coil KY2 of the second motor control relay of the first motor control relay lose
Electricity, the first motor stop working with second motor, will lead to the crane remote control and detect reset automatically
3 error starting of device, by the way that the 4th relay is arranged, when there is maloperation in the remote-control motor change-over switch K802, by
It is still remained off without crane remote control described in error starting certainly in the normally closed switch K4 of the 4th relay
Dynamic detection resetting apparatus 3.
Further, as shown in figure 4, it further includes counter that the crane remote control detects resetting apparatus 3 automatically
6；
The counter 6 is connect with the both ends of the normally closed switch K3-1 of the third relay, for losing to remote signal
It loses number to be counted, the time of each dropout failure can also be recorded, tied convenient for staff according to counting
Fruit grasps the recent operating condition of crane, helps to analyze dropout reason and be prevented.
Optionally, model DH48J can be selected in the counter 6.
Further, as shown in figure 4, it further includes alarm that the crane remote control detects resetting apparatus 3 automatically
7；
The coil KT of the alarm 7 and the time relay is connected in parallel, for issuing when remote signal is lost
Alarm is automatically reseting convenient for tip ground operator's remote signal loss.
Optionally, the alarm 7 is combined aural and visual alarm.
Further, it further includes the second breaker that the crane remote control detects resetting apparatus 3 automatically；
The normal open switch K1 of first relay, the normally closed switch K3-1 of the third relay, first open circuit
Device Q1 passes through second breaker and connect with the positive L of the power supply；
Second breaker is for power supply described in on-off.
By adding second breaker, it is convenient for hand off power supply, the automatic detection resetting apparatus 3 is carried out
Maintenance.
Further, the power supply is independent current source, with the crane power distribution system controlled by the total contactor of crane distribution
System 4 is supplied to the power supply isolation of electric drive system 5, is not influenced by the total contactor folding of the distribution
The utility model embodiment also provides a kind of crane remote control, including crane described in any of the above embodiments is distant
Control system detects resetting apparatus 3 and remote-receiver 2, remote-controlled launcher 1 automatically；
The remote-controlled launcher 1 is used to obtain the instruction of operator's input and is wirelessly transmitted to described instruction described
Remote-receiver 2；
The remote-receiver 2 is used to receive the described instruction that the remote-receiver 2 is sent, and by described instruction
It is sent to the distribution system 4 and electric drive system 5 of crane.
The crane remote control detects resetting apparatus 3, Neng Goushi by the way that the crane remote control is arranged automatically
Now automatically reset, it is time saving and energy saving, it avoids the influence that cannot be resetted in time Dao Zhi to job schedule and existing safety is hidden
Suffer from.
As shown in figure 5, the utility model embodiment also provides a kind of crane, including the crane remote control with
And distribution system 4, electric drive system 5；
The distribution system 4 is used to provide power supply for the electric drive system 5；
The electric drive system 5 includes lifting mechanism, cart and wheeling mechanism, motor, for being vertically moved up or down
With horizontal carrying heavy goods.
The crane passes through the crane that setting includes that the crane remote control detects resetting apparatus 3 automatically
Remote control system can be realized and automatically reset, time saving and energy saving, avoid the influence that cannot reset in time Dao Zhi to job schedule with
And existing security risk.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of crane remote control detects resetting apparatus automatically characterized by comprising power supply, the first relay it is normal
Switch, the normal open switch of the second relay, third relay, the time relay, the first breaker；
First relay is used to detect the open state of first motor, and second relay is for detecting the second motor
Open state；
The first motor replaces unlatching with the control signal that second motor is used to send according to remote-receiver to drive
The oil pump of speed reducer in dynamic crane hoisting mechanism；
The crane remote control is detected automatically in the first branch of resetting apparatus, and the anode of the power supply passes through described first
The normal open switch of relay, the normal open switch of second relay, the third relay coil connect the power supply
Cathode, and the coil of the normal open switch of first relay and the third relay is connected in series, first relay
The normal open switch of device and the normal open switch of second relay are connected in parallel；
In second branch, the anode of the power supply passes through the normally closed switch of the third relay, the line of the time relay
Circle connects the cathode of the power supply, and the normally closed switch of the third relay is connected company with the coil of the time relay
It connects；
In third branch, the anode of the power supply by first breaker, the time relay delay turn-off switch,
The third relay normal open switch connection remote-receiver power input, and first breaker with it is described
The delay turn-off switch of the time relay is connected in series, the delay turn-off switch of the time relay and the third relay
Normal open switch be connected in parallel.
2. crane remote control according to claim 1 detects resetting apparatus automatically, which is characterized in that further include the 4th
The normally closed switch of relay；
4th relay is used to detect the folding condition of the total contactor of distribution；
In the second branch, the normally closed switch of the 4th relay, the third relay normally closed switch and it is described when
Between relay coil be connected in series.
3. crane remote control according to claim 1 detects resetting apparatus automatically, which is characterized in that further include counting
Device；
The counter is connect with the both ends of the normally closed switch of the third relay, is carried out for losing number to remote signal
It counts.
4. crane remote control according to claim 1 detects resetting apparatus automatically, which is characterized in that further include alarm
Device；
The parallel connection of coil of the alarm and the time relay, for being sounded an alarm when remote signal is lost.
5. crane remote control according to claim 1-4 detects resetting apparatus automatically, which is characterized in that
In the first branch, the anode of the power supply connects the third relay by the normal open switch of first relay
One end of the coil of device, the other end of the coil of the third relay connect the cathode of the power supply, first relay
The normal open switch of normal open switch and second relay be connected in parallel.
6. crane remote control according to claim 1-4 detects resetting apparatus automatically, which is characterized in that
In the third branch, the anode of the power supply is closed by the delay that first breaker connects the time relay
One end that make and break is closed, the power input of the other end connection remote-receiver of the delay turn-off switch of the time relay
End, the delay turn-off switch of the time relay and the normal open switch of the third relay are connected in parallel.
7. crane remote control according to claim 1-4 detects resetting apparatus automatically, which is characterized in that also
Including the second breaker；
The normal open switch of first relay, the normally closed switch of the third relay, first breaker pass through institute
The second breaker is stated to connect with the anode of the power supply；
Second breaker is for power supply described in on-off.
8. crane remote control according to claim 1-4 detects resetting apparatus automatically, which is characterized in that institute
Stating power supply is independent current source.
9. a kind of crane remote control, which is characterized in that including the described in any item crane remote controls of claim 1-8
Automatic detection resetting apparatus and remote-receiver, remote-controlled launcher；
The remote-controlled launcher is used to obtain the instruction of operator's input and described instruction is wirelessly transmitted to the remote control
Reception device；
The remote-receiver is used to receive the described instruction that the remote-receiver is sent, and sends described instruction to
The distribution system and electric drive system of crane.
10. a kind of crane, which is characterized in that including crane remote control as claimed in claim 9 and distribution system, electricity
Power dragging system；
The distribution system is used to provide power supply for the electric drive system；
The electric drive system includes lifting mechanism, cart and wheeling mechanism, motor, for vertical lift and level
Carrying heavy goods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820695840.8U CN208279210U (en) | 2018-05-10 | 2018-05-10 | Crane remote control detects resetting apparatus, remote control system and crane automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820695840.8U CN208279210U (en) | 2018-05-10 | 2018-05-10 | Crane remote control detects resetting apparatus, remote control system and crane automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208279210U true CN208279210U (en) | 2018-12-25 |
Family
ID=64729589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820695840.8U Active CN208279210U (en) | 2018-05-10 | 2018-05-10 | Crane remote control detects resetting apparatus, remote control system and crane automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208279210U (en) |
-
2018
- 2018-05-10 CN CN201820695840.8U patent/CN208279210U/en active Active
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