CN112584638A - Take quick start-stop railing machine of intelligent screen - Google Patents
Take quick start-stop railing machine of intelligent screen Download PDFInfo
- Publication number
- CN112584638A CN112584638A CN202011462998.9A CN202011462998A CN112584638A CN 112584638 A CN112584638 A CN 112584638A CN 202011462998 A CN202011462998 A CN 202011462998A CN 112584638 A CN112584638 A CN 112584638A
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- railing
- intelligent screen
- heat dissipation
- machine
- railing machine
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units
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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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20309—Evaporators
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The invention relates to a rapid start-stop railing machine with an intelligent screen, which comprises a railing machine box body, a railing and a driving device, wherein the driving device drives the railing to swing; the servo driver is electrically connected with the servo motor and is used for controlling the servo motor to work; the intelligent screen module is arranged on the box body of the barrier machine and comprises an intelligent screen module and an intelligent screen control assembly, and the intelligent screen module is arranged on the outer surface of the box body of the barrier machine; the railing machine box is closed, and railing machine box is internal to be equipped with first radiator fan and heat dissipation water tray, and first radiator fan blows to the heat dissipation water tray, and railing machine box lower extreme is equipped with the heat dissipation base, is equipped with water tank and water pump in the heat dissipation base, loops through pipe connection between water tank, water pump, the heat dissipation water tray and the water tank and forms circulation circuit.
Description
Technical Field
The invention relates to the field of traffic auxiliary equipment, in particular to a rapid starting and stopping railing machine with an intelligent screen.
Background
With the development of science and technology, the demand for high efficiency and intellectualization of traffic products or equipment is becoming stronger. The barrier machine is generally a traffic auxiliary device used for intercepting, charging, registering and other works on vehicles in roads, is usually arranged at each high-speed entrance or each entrance of a community, is controlled by a non-servo motor and a counterweight, is slow in response speed in starting and stopping, generally needs 2-5 seconds per time in response speed, causes longer waiting time of the vehicles, and slows down traffic efficiency; in addition, the traditional railing machine has single function and cannot meet the requirements of social development trend.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the rapid starting and stopping railing machine with the intelligent screen, the starting and stopping response speed of the railing machine is high, the waiting time of vehicles can be reduced, and the passing efficiency is improved; in addition, compared with the traditional railing machine, the multifunctional railing machine is more diversified in function.
The purpose of the invention is realized by the following technical scheme:
a rapid start-stop railing machine with an intelligent screen comprises a railing machine box body, a railing and a driving device, wherein the driving device is arranged in the railing machine box body and drives the railing to swing; the servo driver is electrically connected with the servo motor and is used for controlling the servo motor to work; the intelligent screen module is arranged on the box body of the barrier machine and comprises an intelligent screen module and an intelligent screen control assembly, the intelligent screen module is arranged on the outer surface of the box body of the barrier machine, the intelligent screen control assembly is arranged in the box body of the barrier machine, and the intelligent screen control assembly is used for controlling the intelligent screen module; the railing machine box is closed, be equipped with first radiator fan and heat dissipation water tray in the railing machine box, first radiator fan blows to the heat dissipation water tray, railing machine box lower extreme is equipped with the heat dissipation base, be equipped with water tank and water pump in the heat dissipation base, loop through pipe connection formation circulation circuit between water tank, water pump, heat dissipation water tray and the water tank.
Further, the material for manufacturing the handrail is carbon fiber.
Further, be equipped with servo power supply in the railing machine box, servo power supply is used for servo motor with servo driver provides the power.
Further, be equipped with the intelligent screen power in the railing machine box, the intelligent screen power is used for the intelligent screen module with the intelligent screen control subassembly provides the power.
Further, a vehicle detector is further arranged in the railing machine box body.
Further, be equipped with railing stopper on the barrier machine box, railing stopper is used for the restriction the rotatory angle of railing.
Furthermore, a prompt lamp is arranged on the railing.
Further, be equipped with equipment fixing frame in the railing machine box, equipment fixing frame is used for the installation the reduction gear servo motor servo driver with intelligent screen module.
Furthermore, a balancing weight is arranged at one end of the handrail, which is connected with the speed reducer.
Furthermore, a box body door is arranged on the box body of the railing machine.
Furthermore, the side wall of the heat dissipation base is provided with a vent, and a second heat dissipation fan is further arranged in the heat dissipation base.
The invention has the following beneficial effects: the rapid start-stop railing machine with the intelligent screen comprises a railing machine box body, a railing and a driving device, wherein a speed reducer, a servo motor and a servo driver are arranged in the railing machine box body, the servo driver controls the servo motor to work, the servo motor drives the railing to swing through the speed reducer, and the speed reducer is arranged, so that the output torque can be effectively increased, and the start-stop force is increased, so that the start-stop speed is increased; in addition, the servo drive control technology is utilized, so that the action response speed of the servo motor is higher, the rotation positioning of the servo motor is more accurate, the servo control technology is matched with the speed reducer, the servo motor is powered off after the rotation reaches a specified position, and the torque output by the speed reducer is changed into the braking torque for continuing the rotation of the handrail so as to ensure that the handrail is quickly decelerated and stopped; the intelligent screen module is arranged on the box body of the barrier machine, and can be used for displaying propaganda videos, advertisement delivery and the like and also can be used for displaying information of vehicles, payment, entrances and exits and the like, so that the functions of the barrier machine are more diversified.
In addition, the box body of the barrier machine is closed, so that dust cannot enter the box body of the barrier machine, and the service life of equipment in the box body of the barrier machine cannot be influenced by the dust adhesion; in order to ensure normal heat dissipation in the box body of the railing machine, a first heat dissipation fan and a heat dissipation water tray are arranged in the box body of the railing machine, a heat dissipation base is arranged at the lower end of the box body of the railing machine, a water tank and a water pump are arranged in the heat dissipation base, and the water tank, the water pump, the heat dissipation water tray and the water tank are sequentially connected through a guide pipe to form a circulation loop; after cooling water cold volume in the cooling water dish dispels, cool off in the return water tank again, consequently, this scheme has guaranteed the heat dissipation promptly, can guarantee good dustproof effect again.
Drawings
FIG. 1 is a schematic diagram of the internal structure of the present invention;
FIG. 2 is a schematic front view of the present invention;
fig. 3 is a rear view schematic diagram of fig. 2.
Description of the specific structure: 11 railing, 12 reduction gears, 13 servo motor, 14 servo power, 15 servo driver, 16 railing stopper, 21 intelligent screen module, 22 intelligent screen power, 23 intelligent screen control assembly, 3 railing machine box, 31 equipment fixing frame, 32 box door, 4 vehicle detectors, 5 air switch subassemblies, 6 heat dissipation bases, 61 radiator-water tray, 62 first radiator fan, 63 pipe, 64 water pump, 65 water tank, 66 second radiator fan.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are given in the accompanying drawings.
As shown in fig. 1, a rapid start/stop barrier machine with an intelligent screen comprises a barrier machine box 3, a barrier 11 and a driving device, wherein the driving device is arranged in the barrier machine box 3 and drives the barrier 11 to swing, the driving device comprises a speed reducer 12, a servo motor 13 and a servo driver 15, an output end of the speed reducer 12 extends out of the barrier machine box 11, and an input end and an output end of the speed reducer 12 are respectively connected with an output shaft of the servo motor 13 and one end of the barrier 11; the servo driver 15 is electrically connected with the servo motor 12, and the servo driver 15 is used for controlling the servo motor 13 to work; still be equipped with intelligent screen module on the railing machine box 3, intelligent screen module includes intelligent screen module 21 and intelligent screen control assembly 23, intelligent screen module 21 is located the surface of railing machine box 3, intelligent screen control assembly 23 is located in the railing machine box 3, intelligent screen control assembly 23 is used for control intelligent screen module 21. Railing machine box 3 is for sealing the form, be equipped with first radiator fan 62 and heat dissipation water tray 61 in the railing machine box 3, first radiator fan 62 blows to heat dissipation water tray 61, railing machine box 3 lower extreme is equipped with heat dissipation base 6, be equipped with water tank 65 and water pump 64 in the heat dissipation base 6, loop through pipe 63 connection formation circulation circuit between water tank 65, water pump 64, heat dissipation water tray 61 and the water tank 65.
The barrier machine box body 3 is closed, so that dust cannot enter the barrier machine box body 3, and the service life of equipment in the barrier machine box body 3 cannot be influenced by the dust adhesion; in order to ensure normal heat dissipation in the handrail machine box body 3, a first heat dissipation fan 62 and a heat dissipation water tray 61 are arranged in the handrail machine box body 3, the heat dissipation base 6 is arranged at the lower end of the handrail machine box body 3, a water tank 65 and a water pump 64 are arranged in the heat dissipation base 6, and the water tank 65, the water pump 64, the heat dissipation water tray 61 and the water tank 65 are connected in sequence through a guide pipe 63 to form a circulation loop, so that cooling water in the water tank 65 can be pumped to the heat dissipation water tray 61 through the water pump 64, and the first heat dissipation fan 66 blows cooling energy on the surface of the heat dissipation water tray 61 into the handrail machine box body 3 to realize cooling in the handrail machine box body 3; after the cooling water cold volume in the cooling water dish 61 looses, cool off in the water return tank 65 that flows again, consequently, this scheme has guaranteed the heat dissipation promptly, can guarantee good dustproof effect again.
It is conceivable that the balustrade 11 and the smart screen module 21 should be respectively disposed on two opposite surfaces of the balustrade case 3, in order to ensure circuit safety, an air switch assembly 5 may be disposed in the balustrade case 3, and the air switch assembly 5 may be configured to protect a circuit inside the balustrade case 3; in order to facilitate the work of the manual control equipment, the control end can be arranged in the control room, the control end can be used for controlling the operation of the servo motor 13 and controlling the putting of the intelligent screen module, and the connection between the control end and the servo driver or the intelligent screen control component can adopt wired electric connection or wireless signal connection.
Further, a servo power supply 14 is arranged in the railing machine box 3, and the servo power supply 14 is used for supplying power to the servo motor 13 and the servo driver 15. Be equipped with intelligent screen power 22 in the railing machine box 3, intelligent screen power 22 is used for doing intelligent screen module 21 with intelligent screen control module 23 provides the power. The voltage of servo circuit work is different with the voltage of intelligent screen module work, sets up different power respectively and can separately supply power for two sets of equipment, guarantees that two sets of circuits can go on in order respectively to under the circumstances of intelligent screen module circuit trouble outage, servo circuit can also normally work, does not influence work and operates as usual. Of course, in this embodiment, the circuit device may also be powered by external commercial power, and is not limited to having an independent power supply.
Preferably, the material for making the balustrade 11 is carbon fiber. The railing 11 of carbon fiber preparation has advantages such as the quality is light, intensity height, and the light railing 11 of quality can reduce servo motor 13 resistance when starting the rotation to accelerate the starting and stopping speed of railing machine.
Further, a vehicle detector 4 is also arranged in the barrier machine box body 3. The vehicle detector 4 is provided to detect the number, presence, speed, occupancy, vehicle type, vehicle color, vehicle flow direction, vehicle travel track, inter-vehicle distance, passing time, traffic flow density, and the like of passing vehicles.
Further, be equipped with railing stopper 16 on railing machine box 3, railing stopper 16 is used for the restriction the rotatory angle of railing. As shown in fig. 3, the balustrade stopper 16 can be disposed below the balustrade 11 and near one side of the extended end of the balustrade 11, and the balustrade stopper 16 can limit the balustrade 11 from overshooting, thereby preventing damage to people and vehicles.
Furthermore, a prompt lamp is arranged on the handrail 11. Railing 11 sets up the warning light, can prevent to hit the pole in the vehicle that the suggestion passed through under the not enough condition of light.
Further, be equipped with equipment fixing frame 31 in the railing machine box 3, equipment fixing frame 31 is used for the installation reduction gear 12 servo motor 13 servo driver 15 with the intelligence screen module. As shown in fig. 1, the installation position of the equipment inside the railing machine box 3 is shown, and the equipment is installed on the installation frame 31, of course, the installation structure shown in fig. 1 is only one embodiment of this embodiment, and of course, is not limited thereto, and the installation position can be changed by those skilled in the art according to actual needs.
Furthermore, a balancing weight is arranged at one end of the handrail, which is connected with the speed reducer. The counterweight block is arranged to balance the gravity at the two ends of the output shaft of the speed reducer 12, so that the resistance of the servo motor 13 in the rotation starting process can be reduced, and the starting and stopping speed of the railing machine is accelerated.
Further, a box door is arranged on the railing machine box body 3. The arrangement of the box body door 32 can facilitate the overhaul and installation of the internal equipment of the box body 3 of the railing machine.
Furthermore, a vent is formed in the side wall of the heat dissipation base 6, and a second heat dissipation fan 66 is further disposed in the heat dissipation base 6. The second heat dissipation fan 66 is provided to accelerate the air circulation in the heat dissipation base 6, thereby ensuring that the heat of the water tank 65 is dissipated quickly.
The above description is only a preferred embodiment of the present invention, but not intended to limit the scope of the invention, and all simple equivalent changes and modifications made in the claims and the description of the invention are within the scope of the invention.
Claims (10)
1. The utility model provides a take quick start-stop railing machine of intelligent screen, includes railing machine box, railing and drive arrangement, drive arrangement locates in the railing machine box, drive arrangement drives the railing swing, its characterized in that: the driving device comprises a speed reducer, a servo motor and a servo driver, wherein the output end of the speed reducer extends out of the railing case body, and the input end and the output end of the speed reducer are respectively connected with the output shaft of the servo motor and one end of the railing; the servo driver is electrically connected with the servo motor and is used for controlling the servo motor to work; the intelligent screen module is arranged on the box body of the barrier machine and comprises an intelligent screen module and an intelligent screen control assembly, the intelligent screen module is arranged on the outer surface of the box body of the barrier machine, the intelligent screen control assembly is arranged in the box body of the barrier machine, and the intelligent screen control assembly is used for controlling the intelligent screen module; the railing machine box is closed, be equipped with first radiator fan and heat dissipation water tray in the railing machine box, first radiator fan blows to the heat dissipation water tray, railing machine box lower extreme is equipped with the heat dissipation base, be equipped with water tank and water pump in the heat dissipation base, loop through pipe connection formation circulation circuit between water tank, water pump, heat dissipation water tray and the water tank.
2. The rapid start and stop railing machine with the intelligent screen of claim 1, wherein: the handrail is made of carbon fiber.
3. The rapid start and stop railing machine with the intelligent screen of claim 1, wherein: be equipped with servo power in the railing machine box, servo power is used for servo motor with servo driver provides the power.
4. The rapid start and stop railing machine with the intelligent screen of claim 1, wherein: the intelligent screen power supply is arranged in the railing machine box body and used for providing power for the intelligent screen module and the intelligent screen control assembly.
5. The rapid start and stop railing machine with the intelligent screen of claim 1, wherein: and a vehicle detector is also arranged in the railing machine box body.
6. The rapid start and stop railing machine with the intelligent screen of claim 1, wherein: be equipped with railing stopper on the barrier machine box, railing stopper is used for the restriction the rotatory angle of railing.
7. The rapid start and stop railing machine with the intelligent screen of claim 1, wherein: and a prompt lamp is arranged on the railing.
8. The rapid start and stop railing machine with the intelligent screen of claim 1, wherein: be equipped with equipment fixing frame in the railing machine box, equipment fixing frame is used for the installation the reduction gear servo motor servo driver with intelligent screen module.
9. The rapid start and stop railing machine with the intelligent screen of claim 1, wherein: and a balancing weight is arranged at one end of the handrail, which is connected with the speed reducer.
10. The rapid start and stop railing machine with the intelligent screen of claim 1, wherein: the side wall of the heat dissipation base is provided with a vent, and a second heat dissipation fan is further arranged in the heat dissipation base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011462998.9A CN112584638A (en) | 2020-12-11 | 2020-12-11 | Take quick start-stop railing machine of intelligent screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011462998.9A CN112584638A (en) | 2020-12-11 | 2020-12-11 | Take quick start-stop railing machine of intelligent screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112584638A true CN112584638A (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011462998.9A Pending CN112584638A (en) | 2020-12-11 | 2020-12-11 | Take quick start-stop railing machine of intelligent screen |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140034008A (en) * | 2012-09-11 | 2014-03-19 | 주식회사 우진산전 | Pump auto control apparatus of heat-block for a tarin |
| US20150016171A1 (en) * | 2013-07-10 | 2015-01-15 | Hitachi, Ltd. | Traction converter and railway vehicle |
| CN106192811A (en) * | 2016-08-13 | 2016-12-07 | 潜山共同创网络科技有限公司 | A kind of computer-controlled intelligent vehicle banister |
| CN206400645U (en) * | 2016-11-29 | 2017-08-11 | 泰州佳丰汽车配件有限公司 | Parking fee collective system device is used in a kind of estate management service |
| CN110084900A (en) * | 2019-05-16 | 2019-08-02 | 广州沣雷交通科技股份有限公司 | A kind of rapid starting/stopping barrier machine that band intelligently shields |
| CN210183743U (en) * | 2019-02-28 | 2020-03-24 | 江苏省徐州技师学院 | Electric appliance cabinet convenient to heat dissipation |
| CN210917124U (en) * | 2019-10-17 | 2020-07-03 | 贵州中南交通科技有限公司 | Separated high-speed railing machine |
| CN111431072A (en) * | 2020-04-26 | 2020-07-17 | 宁波甬新东方电气有限公司 | Power distribution cabinet |
-
2020
- 2020-12-11 CN CN202011462998.9A patent/CN112584638A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140034008A (en) * | 2012-09-11 | 2014-03-19 | 주식회사 우진산전 | Pump auto control apparatus of heat-block for a tarin |
| US20150016171A1 (en) * | 2013-07-10 | 2015-01-15 | Hitachi, Ltd. | Traction converter and railway vehicle |
| CN106192811A (en) * | 2016-08-13 | 2016-12-07 | 潜山共同创网络科技有限公司 | A kind of computer-controlled intelligent vehicle banister |
| CN206400645U (en) * | 2016-11-29 | 2017-08-11 | 泰州佳丰汽车配件有限公司 | Parking fee collective system device is used in a kind of estate management service |
| CN210183743U (en) * | 2019-02-28 | 2020-03-24 | 江苏省徐州技师学院 | Electric appliance cabinet convenient to heat dissipation |
| CN110084900A (en) * | 2019-05-16 | 2019-08-02 | 广州沣雷交通科技股份有限公司 | A kind of rapid starting/stopping barrier machine that band intelligently shields |
| CN210917124U (en) * | 2019-10-17 | 2020-07-03 | 贵州中南交通科技有限公司 | Separated high-speed railing machine |
| CN111431072A (en) * | 2020-04-26 | 2020-07-17 | 宁波甬新东方电气有限公司 | Power distribution cabinet |
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Application publication date: 20210330 |
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| RJ01 | Rejection of invention patent application after publication |