CN106351143B - Smartway height-limiting frame - Google Patents
Smartway height-limiting frame Download PDFInfo
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- CN106351143B CN106351143B CN201610955552.7A CN201610955552A CN106351143B CN 106351143 B CN106351143 B CN 106351143B CN 201610955552 A CN201610955552 A CN 201610955552A CN 106351143 B CN106351143 B CN 106351143B
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- height
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- limit switch
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Power Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
Present invention discloses a kind of Smartway height-limiting frames, including door frame, at least one lifting assembly and at least one electric control gear；At least one described lifting assembly is fixedly mounted on door frame, and each lifting assembly includes motor, retarder, converter, leading screw and nut mechanism, scissors fork, elevating lever and height-limiting bar；Motor drives the screw rod rotation of leading screw and nut mechanism by retarder and converter；The upper end of scissors fork and the nut of leading screw and nut mechanism connect, and lower end is connect by sleeve with elevating lever；Height-limiting bar is connect with elevating lever；At least one described electric control gear is mutually electrically connected one by one at least one described lifting assembly, is rotated and reverse for controlling motor.The structure of the Smartway height-limiting frame is simple, and the height of height-limiting bar is adjustable, and can be adjusted by electric control gear and motor intelligent, effectively reduces the manpower and material resources of road control investment.
Description
Technical field
The present invention relates to a kind of Smartway height-limiting frames.
Background technique
Current vehicle is restricted driving generally can be by mark, graticule, height-limiting frame and artificial realization on duty, first two therein
Method relies primarily on the consciousness of driver, and the dynamics of execution is limited, and artificial method on duty is limited by conditions such as manpower, times
System, insignificant period cannot achieve, and find that height-limiting frame method is most economical effective by contrast.
Height-limiting frame be it is a kind of for bridge, culvert, tunnel entrance gate framework, generally welding for steel structure forms,
Play protection bridge, culvert, tunnel；On have sign board, limit for height rice number is indicated, for prompting vehicle.Current common limit for height
Frame is broadly divided into three kinds: fixed height-limiting frame, manual height-limiting frame, electronic height-limiting frame.Nowadays height-limiting frame to be not only arranged in bridge,
The entrance of culvert, tunnel is also required to be arranged in certain specific sections, limit for height is carried out to vehicle, to guarantee the convenience of traffic
Control with reinforcement to traffic.
Most of the height-limiting frame in China is fixed at present, and limit for height height can not be adjusted, if special circumstances, tight occur
Anxious situation needs current Overheight Vehicles or time-division transfer current, and current height-limiting frame, which will become, to be hindered.
Summary of the invention
Simple it is an object of the invention in view of the above-mentioned drawbacks in the prior art, provide a kind of structure, height is adjustable, and
And can intelligent electric adjust limit for height height Smartway height-limiting frame.
For achieving the above object, present invention employs following technical solutions: a kind of Smartway height-limiting frame, including door
Frame, at least one lifting assembly and at least one electric control gear；At least one described lifting assembly is fixedly mounted on door frame,
Each lifting assembly includes motor, retarder, converter, leading screw and nut mechanism, scissors fork, elevating lever and height-limiting bar；
Motor drives the screw rod rotation of leading screw and nut mechanism by retarder and converter；The upper end of scissors fork and leading screw and nut mechanism
Nut connection, lower end is connect by sleeve with elevating lever；Height-limiting bar is connect with elevating lever；At least one described electric control gear with
At least one described lifting assembly is mutually electrically connected one by one, is rotated and reverse for controlling motor.
In addition, the present invention also provides following attached technical schemes:
The two sides of the door frame are respectively arranged with guide groove, and the both ends of the elevating lever are inserted into guide groove respectively.
The electric control gear includes manual control module, and manual control module includes button SB2, contactor KM1, contactor
KM2, limit switch SQ1 and limit switch SQ2；Contactor KM1 is connected in parallel with contactor KM2, and connects motor
The phase sequence of three phase mains；Contactor KM1 connects the normally-closed contact of limit switch SQ1 and the normally opened contact of limit switch SQ2 respectively；
Contactor KM2 connects the normally opened contact of limit switch SQ1 and the normally-closed contact of limit switch SQ2 respectively；Contactor KM1 coil returns
Road seals in the normally closed auxiliary contact of contactor KM2；Contactor KM2 wire loop seals in the normally-closed contact of contactor KM1.
The limit switch SQ1 and limit switch SQ2 is respectively and fixedly installed to the side of the door frame, and respectively
Positioned at the two sides up and down of the elevating lever.
The electric control gear further includes the timing control module being electrically connected with each other with the manual control module, timing control
Molding block includes time switch KG and time relay KT2, and time switch KG is used to automatically control the motor cycle operation,
Time relay KT2 is power cut off delay formula, the power-on time of the power supply circuit for controlling time switch KG.
The electric control gear further include be electrically connected with each other with the manual control module and timing control module it is long-range
Control module, remote control module include PLC controller, intermediate relay KA and time relay KT1, and PLC controller can carry out
Telecommunication, and controllable intermediate relay KA is powered, intermediate relay KA normally opened contact, the normally closed touching of time relay KT1
Point and the contactor KM1 normally-closed contact are serially connected.
The Smartway height-limiting frame further includes the superelevation warning device being fixedly mounted on door frame, the superelevation warning device
Including infrared emission sensor and receiving sensor, infrared light emission sensor issues infrared modulated light as light source, receives sensing
Device receives infrared modulated light, sounds an alarm when light is interdicted.
The Smartway height-limiting frame further includes the electronic shooting device being fixedly mounted on door frame, the electronic shooting device
For carrying out pan-shot and license plate shooting to vehicle, the illegal process and information of vehicles of vehicle are recorded and transmitted.
Compared with the prior art, present invention has an advantage that disclosing a kind of Smartway height-limiting frame comprising there is lifting
Component and electric control gear, lifting assembly structure is simple, includes motor, retarder, converter, leading screw and nut mechanism, scissors
Fork, elevating lever and height-limiting bar, by motor drive leading screw and nut mechanism, rotary motion is transformed to directly by leading screw and nut mechanism
Line movement, the linear motion of horizontal direction is transformed to the elevating movement of vertical direction by scissors fork, to realize that limit for height height can
It adjusts；Electric control gear is electrically connected with each other with lifting assembly, and controllable motor rotates and reverse, to realize that intelligent control limits
Height is adjustable.
Detailed description of the invention
Fig. 1 is the door frame of Smartway height-limiting frame of the invention and the structural schematic diagram of lifting assembly.
Fig. 2 is the circuit diagram of the electric control gear of Smartway height-limiting frame of the invention.
Fig. 3 is the schematic view of the mounting position of limit switch SQ1 and limit switch SQ2.
Specific embodiment
In conjunction with the preferred embodiment and its attached drawing is further non-limitingly described in detail technical solution of the present invention.
Smartway height-limiting frame of the invention includes door frame, at least one lifting assembly and at least one electric control gear.
Referring to Fig.1, door frame includes two upright bars 100 and a cross bar 200；Fixation is erected at public affairs respectively for two upright bars 100
The both sides on road, and the inside of two upright bars 100 is respectively provided with one of guide groove 2；Cross bar 200 is connected to the top of two upright bars 100
A platform 3 is arranged on cross bar 200 for portion.
At least one lifting assembly is fixedly mounted on door frame 1, and quantity can accordingly be adjusted according to the quantity in lane.Each
Lifting assembly includes motor 4, retarder 5, converter 6, leading screw and nut mechanism, scissors fork 9, elevating lever 11 and height-limiting bar
13.Rotary motion can be transformed to move along a straight line or linear motion is transformed to rotary motion, screw rod spiral shell by leading screw and nut mechanism
Parent agency includes screw rod 7a and two nut 7b, and screw rod 7a is driving link, and two nut 7b are driven member, and two nut 7b
Screw thread on the contrary, when screw rod 7a rotation when, two nut 7b directions of motion are opposite.
Motor 4, retarder 5 and converter 6 are fixedly mounted on platen 3, and the motor 4 of the present embodiment is three-phase electricity
Machine.Screw rod 7a is fixedly connected by several hanging rings 8 with cross bar 200, and bearing is provided between screw rod 7a and hanging ring 8, and (figure is not
Show), therefore screw rod 7a be free to rotate.The upper end of scissors fork 9 is fixedly connected with two nut 7b respectively, lower end and sleeve
10 connections, sleeve 10 are movably set in outside elevating lever 11.The both ends of elevating lever 11 respectively correspond two guide grooves 2 of insertion
Interior, guide groove 2 can limit the lifting track of elevating lever 11, while prevent elevating lever 11 from shaking, and influence the steady of entire lifting assembly
It is qualitative.Height-limiting bar 13 is connect by iron chains 12 with elevating lever 11, to avoid height-limiting bar 13 and vehicle that hard collision, height-limiting bar occurs
13 are fabricated to by soft materials.
Above-mentioned motor 4, retarder 5, converter 6 and screw rod 7a are sequentially connected, and motor 4 passes through 5 He of retarder
Converter 6 drives screw rod 7a rotation, and since the position screw rod 7a is fixed, on screw rod 7a opposite direction occurs for two nut 7b
Movement, scissors fork 9 upper end is opened under the drive of two nut 7b or closes tightly, lower end progress elevating movement, finally drive
Elevating lever 11 and height-limiting bar 13 are gone up and down.It follows that motor 4 rotates and reverse the lifting for influencing height-limiting bar 13.
Electric control gear is electrically connected one by one with lifting assembly, and control motor 4 rotates and reverse, to control height-limiting bar 13
Lifting.Referring to Fig. 2, electric control gear includes: manual control module, timing control module and remote control module.Specifically,
Manual control module includes button SB2, contactor KM1, contactor KM2, limit switch SQ1 and limit switch
SQ2；Contactor KM1 is connected in parallel with contactor KM2, and connects the phase sequence of the three phase mains of motor；Contactor KM1 difference
The normally-closed contact of series connection limit switch SQ1 and the normally opened contact of limit switch SQ2；Contactor KM2 connects limit switch SQ1 respectively
Normally opened contact and limit switch SQ2 normally-closed contact；Contactor KM1 wire loop seals in the normally closed auxiliary touching of contactor KM2
Point；Contactor KM2 wire loop seals in the normally-closed contact of contactor KM1.Referring to Fig. 3, limit switch SQ1 and limit switch SQ2
It is respectively and fixedly installed to the side of upright bar 100, and is located at the two sides up and down of elevating lever 11.
The course of work manually controlled is as follows:
Forward direction starting: closing air switch QS and connect three phase mains, presses start button SB2, and contactor KM1, which is powered, to be attracted
And it is self-locking, main contact closure connects motor, and the phase sequence of motor at this moment is L1, L2, L3, i.e., positive operation.Motor drive
Elevating lever 11 is moved upwards from low, and in motion process, link stopper makes limit switch SQ2 be reset to next contactor KM2 movement to carry out
Prepare, limit switch SQ1 is collided when elevating lever 11 moves upward to predetermined position, the normally-closed contact of limit switch SQ1 disconnects
The wire loop of contactor KM1, contactor KM1 power-off, main contact release, electric motor circuit breaking stop；At the same time, limit switch
The normally opened contact of SQ1 is closed, and is ready the energization of contactor KM2 coil for button SB2 next time movement.
Reverse starting: bar is limited at this time in top position, presses start button SB2, contactor KM2 coil, which is powered, to be attracted simultaneously
Self-locking by auxiliary contact, normally opened main contact closure has converted the power phase of motor three-phase, at this moment the phase sequence of motor is
L3, L2, L1, i.e. inverted running.Motor drive elevating lever 11 moves from high to low, and in motion process, limit switch SQ1 resets
And it is ready for contactor KM1 next time movement.Limit switch is collided when elevating lever 11 is moved downwardly to scheduled position
The normally-closed contact of SQ2, limit switch SQ2 disconnect the wire loop of contactor KM2, contactor KM2 power-off, main contact release, electricity
Motivation power-off stops；At the same time, the normally opened contact closure of limit switch SQ2 makes contactor KM1 for button SB2 next time movement
Coil energization is ready.
Contactor interlocking: contactor KM1 wire loop seals in the normally closed auxiliary contact of contactor KM2, contactor KM2 coil
Circuit seals in the normally-closed contact of contactor KM1.After positive contactor KM1 coil energization movement, the auxiliary of contactor KM1 is normally closed
Contact is disconnected contactor KM2 wire loop, if contactor KM1 is made to obtain electric actuation, it is necessary to first make contactor KM2 power-off release,
It assists normally closed interlock to reset, and is attracted simultaneously This prevents contactor KM1, KM2 and causes phase fault, this line link claims
To interlock link, there is prohibiting function to play safeguard protection in the line.
Timing control module includes time switch KG, time relay KT1 and time relay KT2, and time switch KG is used for
The motor cycle operation is automatically controlled, time relay KT1 and time relay KT2 are power cut off delay formula, for controlling
The power-on time of the power supply circuit of time switch KG processed.Time switch KG is the product of Siemens's exploitation, model KG-316T.
Assuming that time switch, which is set as daily 20:00 weekly, is energized to 20:01 power-off, it is disconnected that 07:00 is energized to 07:01
Electricity, the timing control module course of work are as follows:
Forward direction starting: closing air switch QS and power on, and time time switch in 20:00 is connected, and powers to circuit,
Contactor KM1 coil, which is powered, to be attracted simultaneously self-locking, and main contact closure connects motor, and the phase sequence of motor at this moment is L1, L2, L3,
I.e. positive operation.The power cut off delay coil of time relay KT2 is powered simultaneously, and normally-closed contact is because coil is powered instantaneous point
Section, so that the power supply circuit of time switch KG control disconnects.Motor drive elevating lever 11 moves from low to high, motion process
In, limit switch SQ2 is reset to next contactor KM2 movement and is ready.When elevating lever 11 moves upward to predetermined position
Limit switch SQ1 is collided, the normally-closed contact of limit switch SQ1 disconnects the wire loop of contactor KM1, and contactor KM1 power-off is main
Contact release, electric motor circuit breaking stop；The normally opened contact of limit switch SQ1 is closed, for the power supply of time switch KG next time control
Circuit is connected, and the energization of contactor KM2 coil is ready；At the same time, the normally-closed contact time relay of limit switch SQ1
The circuit of KT2, time relay KT2 timing closing due to power-off guarantee circuit safety.
Reverse starting: time time switch in 07:00 is connected, and is powered to circuit, and contactor KM2 coil, which is powered, to be attracted simultaneously
Self-locking, main contact closure connects motor, and the phase sequence of motor at this moment is L3, L2, L1, i.e. inverted running.Time relay simultaneously
The power cut off delay coil of device KT2 is powered, normally-closed contact instantaneous segmentation because coil is powered, so that the confession of time switch KG control
Circuit disconnects.Motor drive elevating lever 11 moves from high to low, and in motion process, limit switch SQ1 is reset to connect next time
Tentaculum KM1 movement is ready.Limit switch SQ2, limit switch are collided when elevating lever 11 is moved downwardly to scheduled position
The normally-closed contact of SQ2 disconnects the wire loop of contactor KM2, contactor KM2 power-off, main contact release, electric motor circuit breaking stopping；
The normally opened contact of limit switch SQ2 is closed, and the power supply circuit for time switch KG next time control is connected, and makes contactor KM1 coil
Energization is ready；At the same time, the circuit of the normally-closed contact turn-off time relay KT2 of limit switch SQ2, the time relay
KT2 timing closing due to coil blackout guarantees circuit safety.
Remote control module includes PLC controller, intermediate relay KA and time relay KT1, and PLC controller can carry out far
Cheng Tongxin, and controllable intermediate relay KA is powered, intermediate relay KA normally opened contact, time relay KT1 normally-closed contact
And the contactor KM1 normally-closed contact is serially connected.PLC controller is siemens PLC series.
The course of work of remote control module is as follows:
Forward direction starting: closing air switch QS and power on, and presses point driving switch SB3, and PLC controller controls intermediate relay
Device KA coil is powered, and the normally opened contact closure of intermediate relay KA, contactor KM1 coil energization actuation is simultaneously self-locking, and main contact closes
Splice grafting energization motivation 4 (M), the phase sequence of motor at this moment are L1, L2, L3, i.e., positive operation.Time relay KT1's is disconnected simultaneously
Electricity delay coil is powered, normally-closed contact instantaneous segmentation because coil is powered, so that the power supply circuit of intermediate relay KA control
It disconnects.Motor drive elevating lever 11 moves upwards, and in motion process, limit switch SQ2 is reset to next contactor KM2 movement
It is ready.Limit switch SQ1, the normally-closed contact of limit switch SQ1 are collided when elevating lever 11 moves upward to predetermined position
Disconnect the wire loop of contactor KM1, contactor KM1 power-off, main contact release, electric motor circuit breaking stopping；Limit switch SQ1's
Normally opened contact closure, the power supply circuit for next PLC controller are connected, and the energization of contactor KM2 coil is ready；It is same with this
When, the circuit of the normally-closed contact turn-off time relay KT1 of limit switch SQ1, time relay KT1 is delayed because of coil blackout
Closure guarantees circuit safety.
Reverse starting: pressing point driving switch SB3, and PLC controller controls intermediate relay KA and is powered, intermediate relay KA's
Normally opened contact closure, the energization of contactor KM2 coil is attracted and self-locking, main contact closure connection motor, the phase of motor at this moment
Sequence is L3, L2, L1, i.e. inverted running.The power cut off delay coil of time relay KT1 is powered simultaneously, and normally-closed contact is because of line
Circle is powered and is instantaneously segmented, so that the power supply circuit of PLC control disconnects.Motor drive elevating lever 11 moves from high to low, movement
In the process, limit switch SQ1 is reset to next contactor KM1 movement and is ready.When elevating lever 11 be moved downwardly to it is scheduled
Limit switch SQ2 is collided when position, the normally-closed contact of limit switch SQ2 disconnects the wire loop of contactor KM2, contactor KM2
Power-off, main contact release, electric motor circuit breaking stop；The normally opened contact of limit switch SQ2 is closed, for the power supply of PLC next time control
Circuit is connected, and the energization of contactor KM1 coil is ready；At the same time, the normally-closed contact turn-off time of limit switch SQ2 after
The circuit of electric appliance KT1, time relay KT1 timing closing due to coil blackout guarantee circuit safety.
Smartway height-limiting frame of the invention further include: superelevation warning device and electronic shooting device；Wherein, superelevation is alarmed
Device is fixedly mounted on door frame comprising infrared emission sensor and receiving sensor, infrared light emission sensor is as light source
Infrared modulated light is issued, receiving sensor receives infrared modulated light, sounds an alarm when light is interdicted；Electronic shooting device is solid
Dingan County is mainly used for carrying out vehicle pan-shot and license plate shooting, records and transmit the illegal mistake of vehicle on door frame
Journey and information of vehicles.
In conclusion Smartway height-limiting frame structure of the invention is simple, pass through motor drive leading screw and nut mechanism, silk
Rotary motion is transformed to move along a straight line by stem nut mechanism, and the linear motion of horizontal direction is transformed to vertical direction by scissors fork
Elevating movement, to realize that limit for height height is adjustable, electric control gear realizes automatic, manual and long-range control motor positive and inverse, intelligence
Limit for height height adjustment is controlled, mitigates traffic police's labour slightly, reduces waste of human resource, reduce collision damage；Superelevation warning device
Illegal information is captured and transmitted automatically with electronic shooting device, reinforces control of the traffic and transportation sector to road traffic.
It is pointed out that the technical concepts and features of above-mentioned preferred embodiment only to illustrate the invention, its object is to
Those skilled in the art can understand the contents of the present invention and implements accordingly, and protection of the invention can not be limited with this
Range.Any equivalent change or modification in accordance with the spirit of the invention should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of Smartway height-limiting frame, including door frame, which includes two upright bars and a cross bar, which is characterized in that limit
It is overhead further include: at least one lifting assembly and at least one electric control gear；
At least one described lifting assembly is fixedly mounted on door frame, and each lifting assembly includes motor, retarder, conversion
Device, leading screw and nut mechanism, scissors fork, elevating lever and height-limiting bar；Leading screw and nut mechanism includes screw rod and two nuts, and screw rod is logical
It crosses several hanging rings to be fixedly connected with cross bar, motor drives the screw rod rotation of leading screw and nut mechanism by retarder and converter
Turn；The upper end of scissors fork and the nut of leading screw and nut mechanism connect, and lower end is connect by sleeve with elevating lever；Height-limiting bar and lifting
Bar connection；
At least one described electric control gear is mutually electrically connected one by one at least one described lifting assembly, for controlling motor
It rotates and reverse.
2. Smartway height-limiting frame according to claim 1, it is characterised in that: the two sides of the door frame, which are respectively arranged with, leads
To slot, the both ends of the elevating lever are inserted into guide groove respectively.
3. Smartway height-limiting frame according to claim 1, it is characterised in that: the electric control gear includes manually controlling mould
Block, manual control module include button SB2, contactor KM1, contactor KM2, limit switch SQ1 and limit switch SQ2；It connects
Tentaculum KM1 is connected in parallel with contactor KM2, and connects the phase sequence of the three phase mains of motor；Contactor KM1 connects limit respectively
The normally-closed contact of bit switch SQ1 and the normally opened contact of limit switch SQ2；Contactor KM2 connects the normally opened of limit switch SQ1 respectively
The normally-closed contact of contact and limit switch SQ2；Contactor KM1 wire loop seals in the normally closed auxiliary contact of contactor KM2；Contact
Device KM2 wire loop seals in the normally-closed contact of contactor KM1.
4. Smartway height-limiting frame according to claim 3, it is characterised in that: the limit switch SQ1 and the limit
Switch SQ2 is respectively and fixedly installed to the side of the door frame, and is located at the two sides up and down of the elevating lever.
5. Smartway height-limiting frame according to claim 3, it is characterised in that: the electric control gear further includes and the hand
The timing control module that dynamic control module is electrically connected with each other, timing control module include time switch KG and the time relay
KT2, time switch KG are for automatically controlling the motor cycle operation, and time relay KT2 is power cut off delay formula, for controlling
The power-on time of the power supply circuit of time switch KG processed.
6. Smartway height-limiting frame according to claim 5, it is characterised in that: the electric control gear further includes and the hand
The remote control module that dynamic control module and timing control module are electrically connected with each other, remote control module include PLC controller,
Intermediate relay KA and time relay KT1, PLC controller can carry out telecommunication, and controllable intermediate relay KA is powered,
Intermediate relay KA normally opened contact, time relay KT1 normally-closed contact and the contactor KM1 normally-closed contact are serially connected.
7. Smartway height-limiting frame according to claim 1, it is characterised in that it further includes being fixedly mounted on door frame
Superelevation warning device, the superelevation warning device include infrared emission sensor and receiving sensor, infrared light emission sensor conduct
Light source issues infrared modulated light, and receiving sensor receives infrared modulated light, sounds an alarm when light is interdicted.
8. Smartway height-limiting frame according to claim 1, it is characterised in that it further includes being fixedly mounted on door frame
Electronic shooting device, which is used to carry out pan-shot to vehicle and license plate is shot, and records and transmits vehicle
Illegal process and information of vehicles.
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| CN201610955552.7A CN106351143B (en) | 2016-10-27 | 2016-10-27 | Smartway height-limiting frame |
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| CN201610955552.7A CN106351143B (en) | 2016-10-27 | 2016-10-27 | Smartway height-limiting frame |
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| CN106351143B true CN106351143B (en) | 2019-05-21 |
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| CN108590319A (en) * | 2018-05-25 | 2018-09-28 | 兖州煤业股份有限公司 | The electric locomotive used overhead line lifting gear in rail/road intersection |
| CN108471453B (en) * | 2018-05-29 | 2023-10-27 | 淮阴工学院 | Urban road specific time period traffic limiting device |
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| CN109712409A (en) * | 2018-12-05 | 2019-05-03 | 深圳亿维锐创科技股份有限公司 | A kind of control matching process based on vehicle weight and candid photograph characteristic information data |
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| CN201470972U (en) * | 2009-06-03 | 2010-05-19 | 马鞍山友邦重工机械有限公司 | Automatic micro back lifting control circuit after dropping of milling planer cross beam |
| CN103174103A (en) * | 2011-12-20 | 2013-06-26 | 上海红门智能系统有限公司 | Remote ramp control system |
| CN204125865U (en) * | 2014-09-16 | 2015-01-28 | 湖南金安交通设施亮化景观建设有限公司 | A kind of liftable remote controlled intelligent height-limiting gantry system |
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