CN202703631U - Shunting switch split prevention automatic control device and rail switch split prevention locomotive automatic stop system - Google Patents
Shunting switch split prevention automatic control device and rail switch split prevention locomotive automatic stop system Download PDFInfo
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- CN202703631U CN202703631U CN 201220375039 CN201220375039U CN202703631U CN 202703631 U CN202703631 U CN 202703631U CN 201220375039 CN201220375039 CN 201220375039 CN 201220375039 U CN201220375039 U CN 201220375039U CN 202703631 U CN202703631 U CN 202703631U
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- shunting
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Abstract
The utility model provides a shunting switch split prevention automatic control device which comprises a photosensitive sensor, a controller, a magnetic control stop device and a photovoltaic power supply which are arranged on an annunciator. When the photosensitive sensor senses that a rail switch is in a locked state, the photosensitive sensor outputs a signal to the controller, the controller controls a strong magnet of the magnetic control stop device to move towards the direction close to a steel rail, a forcedly operating locomotive is subjected to emergency ventilation to implement automatic stop and an accident that the rail switch is split by the locomotive is avoided; and when the photosensitive sensor senses that the rail switch is in a switch-on state, the photosensitive sensor outputs a signal to the controller, the controller controls the strong magnet of the magnetic control stop device to move towards the direction far away from the rail switch and the normal passing of the locomotive is not influenced. A locomotive automatic stop system matched with the shunting switch split prevention automatic control device for use comprises a magnetic induction sensor, a locomotive monitoring device (LKJ), a brake and the like which are arranged on the locomotive. The shunting switch split prevention automatic control device has the advantages of effectively preventing the locomotive switch split accident caused by misjudgment and blind action of a driver and providing the reliable guarantee for the safety production.
Description
Technical field
The utility model relates to a kind of safety that is applicable to railway locomotive depot locomotive servicing storehouse, field, station, station shunts, and prevents that locomotive from squeezing the safety device of bad track trouble, specifically a kind of anti-extrusion trouble device and anti-extrusion system of track switch of shunting.
Background technology
Current; the locomotive prison control monitor unit (LKJ) of China's freight traction locomotive is being brought into play safely significant role for guaranteeing train braking; but complexity, key area at circuit: in each station, marshalling yard and the engineering phase library; the circuit reason multiple because of track switch, that circuit is assorted (the profit dirt is serious, length of line is inadequate, interlock connection is complicated etc.), can't attachment rail circuit signaling device.Make the above-mentioned circuit of shunting all be in signal signaling blind area, and make engine monitoring apparatus (LKJ) lack scope for their abilities.For this reason, the artificial passive speed limit that Maximum speed limit (not super 40km/h) reaches " Heibei provincial opera device " has also just been made in control that current locomotive monitor is shunt for traveling in the storehouse and station field, is to be in blind control state substantially.
Locomotive is when locomotive depot reorganizes and outfit storehouse or Shunting circuit and carries out shunting service, locomotive when walking driver will advance or retreats according to the signal deciding that signal or switchman provide, when signal is that blue signal or switchman are when lifting red flag, track switch is in antiposition " locking " state, does not allow locomotive to pass through; When signal is white signal or switchman when lifting green flag, track switch be in normotopia " by " state, allow locomotive to pass through.But owing to reasons such as the complicated Huo lookout of tired driver, night work, misty rain weather, line condition condition are bad, all can cause the driver to judge by accident, drive locomotive by force by the track switch of " locking " state, cause squeezing the trouble accident and occur, bring hidden danger to safety in production, economic loss.
This accident is owing to be a kind of systematicness (related with factors such as management, circuit, track switch, locomotive, driver, time and weather) accident, and there is not technology and equipment to do guarantee, current in the situation that train accident is effectively controlled to making, locomotive " squeezes, hits, takes off " accident and still again and again occurs when shunting service, become the bottleneck of restriction transportation safety.Based on above reason, problem to be solved in the utility model exactly: develop a kind of anti-extrusion trouble automatic control device of shunting, prevent that locomotive from the generation of " squeeze, hit, take off " occuring when locomotive depot reorganizes and outfit storehouse or Shunting circuit and carries out shunting service.
The utility model content
The technical problems to be solved in the utility model provides a kind of operation section there not being track circuit when carrying out shunting service, can effectively prevent from providing to prevent that locomotive from squeezing the technical guarantee means of trouble because the locomotive that driver erroneous judgement and acting blindly causes squeezes the anti-extrusion trouble automatic control device and use the anti-extrusion locomotive automatic stop system of track switch of this device of shunting of trouble accident.
The utility model solves the problems of the technologies described above by the following technical solutions: a kind of anti-extrusion trouble automatic control device of shunting, comprise the photosensor that is installed on the signal, the controller that connects photosensor, the strong magnet that is controlled by the controller, the power supply that is connected with controller, photosensor on the signal is sensed track switch when " locking " state, output signal to controller, the control strong magnet moves to stop the locomotive that passes through by force towards the direction near rail; Photosensor on the signal sense track switch " by " during state, output signal to controller, the control strong magnet moves towards the direction away from rail, thereby does not stop the locomotive that normally passes through.
The utility model further is optimized for, the described anti-extrusion trouble automatic control device of shunting also comprises described magnetic control stopping device, described magnetic control stopping device comprises motor, leading screw, sliding nut, bearing, described strong magnet, the leading screw of fixed lateral on the output shaft of described motor, cover has sliding nut, described strong magnet to be fixed on the described sliding nut on the leading screw;
When the photosensor on the signal is sensed track switch being in " locking " state, output signal to controller, the electric machine rotation of controller control magnetic control stopping device, drive sliding nut and the strong magnet that is fixed on the sliding nut move towards the direction near rail, pass through to stop locomotive;
When the photosensor on the signal is sensed track switch being in " open-minded " state, output signal to controller, the electric machine rotation of controller control magnetic control stopping device, drive sliding nut and the strong magnet that is fixed on the sliding nut move towards the direction away from rail, do not affect locomotive and pass through.
The utility model further is optimized for, described anti-extrusion trouble automatic control device also comprises two electric machine supports and epoxy resin base plate, the two ends of described leading screw are fixed on the electric machine support by bearing respectively, and the bottom of described electric machine support is fixed on the epoxy resin base plate.Base plate adopts molding for epoxy resin, firm waterproof.
The utility model further is optimized for, and described magnetic control stopping device also comprises shell, and shell adopts yellow ABS engineering plastics, impacted by 250 kilograms external force, and color of shell is yellow, eye-catching Yi Yinqi driver's attention.
The utility model further is optimized for, on the magnetic control stopping device shell status displays is arranged, described telltale has indigo plant, the white glittering indicator lamp of dichromatism, the glittering expression magnetic control of blue lamp stopping device is in the state that stops locomotive to pass through, and the glittering expression magnetic control of white light stopping device is in the state that allows locomotive to pass through.
The utility model further is optimized for, the strong magnet that described strong magnet adopts rare earth rubidium iron boron to make.What be characterized in magnetic-field intensity and distance square is inverse ratio (T=Q/r
2), specifically in data of the present utility model be: when the near location of rail of strong magnet, the magnetic-field intensity of locomotive Magnetic Sensor center-point can reach 6.3 tesals, the locomotive stably stop that 1 kilometer of running velocity is passed through; When strong magnet location of rail far away, the magnetic-field intensity of locomotive Magnetic Sensor center-point can slacken 0.01 tesal, and the locomotive that does not affect 30 kilometers of running velocitys passes through.
The utility model further is optimized for, the anti-extrusion trouble automatic control device of shunting also comprises two limit switches, the contact open of two limit switches is connected on the power supply of motor, limit switch lays respectively at the both sides of leading screw, when sliding nut moves to an end of limit switch, sliding nut touches corresponding limit switch, cuts off the motor power supply, and motor is stopped operating.
The utility model further is optimized for, described photosensor comprises the first photosensor and the second photosensor, the first photosensor is installed on the 4th circle of signal the first lamp lens stop, and the second photosensor is installed on the 4th circle of signal the second lamp lens stop.
The utility model further is optimized for, the signal input part of described controller also links to each other with the sensor fixed, the antiposition outgoing mechanism that is installed in hand-operated points, the sensor fixed, the antiposition outgoing mechanism of described hand-operated points adopts magnetic switch, when manually pulling track switch, when making track switch being in " open-minded " state, the controller drive motor rotates, and makes strong magnet move on to position away from rail; When manually pulling track switch, when making track switch being in " locking " state, the controller drive motor rotates, and makes strong magnet move on to the position of close rail.The sensor that gathers on fixed, the antiposition outgoing mechanism of hand-operated points adopts magnetic switch, has namely solved the problem that original use limit switch easily produces fault, and the problem that has solved thunder and lightning invasion and attack sensors is arranged.
The utility model further is optimized for, and described power supply is photo-voltaic power supply.
The utility model also provides a kind of anti-extrusion locomotive automatic stop system of track switch of using the above-mentioned anti-extrusion trouble automatic control device of shunting, the anti-extrusion locomotive automatic stop system of described track switch comprises the magnetic induction sensor that is installed on the locomotive, the signal boxcar, engine monitoring apparatus, brake, and the described anti-extrusion trouble automatic control device of shunting of two covers that is installed in 13 ~ 15 meters, track switch front that to protect separated by a distance, described magnetic induction sensor is connected to engine monitoring apparatus by the signal boxcar, the brake of engine monitoring apparatus control locomotive, the signal of described magnetic induction sensor induction strong magnet;
Its working mechanism is: when the photosensor on the signal is sensed track switch being in " locking " state, output signal to controller, the electric machine rotation of controller control magnetic control stopping device, drive strong magnet towards the direction horizontal motion near rail, when locomotive passes through by force, magnetic induction sensor on the locomotive can receive two continuous point type pulses that two strong magnets that overlap the anti-extrusion trouble automatic control device of shunting send, the locomotive magnetic induction sensor is passed to engine monitoring apparatus with signal, engine monitoring apparatus control brake makes locomotive implement emergency braking before track switch, is parked in the track switch front of " locking ".
The utility model has the advantage of:
1, can effectively prevent because driver's erroneous judgement or the locomotive that causes of acting blindly squeeze the trouble accident.When not having in the past this technology, prevent that track switch from squeezing bad all is sense of responsibility and the technical merit of depending on every management system, driver; The anti-extrusion automatic control device of shunting point has been installed now, can have been ensured Safety of Shunting Operation from equipment and technology, thereby avoided because the accident that management is not in place or driver's human element causes occurs, for safety in production provides assurance;
2, the strong magnet that adopts rare earth material to make, can make low cruise the locomotive of 1Km/h also can reliable reception to field signal and carry out sudden stop, prevent that effectively the locomotive of low speed driving from squeezing the generation of trouble accident (the low speed protection index of anti-knocking soil block is 3Km/h);
3, adopt photosensor collection signal machine wigwag, this device of photosensor technical guarantee can be realized the photoelectricity isolation with the be engaged in signalling set of system of electricity, again can with the linkage relationship substantial synchronization of signal, solved the technical barrier of this device and track switch signal interface;
4, magnetic switch is adopted in fixed, the antiposition information acquisition of hand-operated points, has solved thunder and lightning invasion and attack problem;
5, adopt the solar photovoltaic power power supply, solved because the Alternating Current Power Supply construction that causes track switch dispersion is high and the problem of constructional difficulties, and played energy-saving and cost-reducing effect.
Description of drawings
Fig. 1 is the constructional drawing of the anti-extrusion locomotive automatic stop arrangement of the utility model track switch.
The specific embodiment
The anti-extrusion locomotive automatic stop system of the utility model track switch comprises the magnetic induction sensor (not shown) that is installed on the locomotive, engine monitoring apparatus (not shown), brake and two covers that are installed in 13 ~ 15 meters, track switch front that will the protect separated by a distance anti-extrusion trouble automatic control device of shunting.
Described magnetic induction sensor is connected to engine monitoring apparatus, the brake of engine monitoring apparatus control locomotive.
When track switch is in " locking " state, when locomotive passes through by force, magnetic induction sensor on the locomotive can receive two and overlap two point type pulses that the anti-extrusion trouble automatic control device of shunting sends, magnetic induction sensor is passed to engine monitoring apparatus with signal, engine monitoring apparatus control brake makes locomotive implement emergency braking before track switch, be parked in the track switch front of " locking ", avoid accident to occur.
See also shown in Figure 1ly, the utility model anti-extrusion trouble automatic control device of shunting comprises the photosensor that is installed on the signal 10, connects controller 20, the magnetic control stopping device 30 that is connected with controller 20 and the power supply 40 of photosensor.
Described photosensor comprises white light photosensor 101 and blue light photosensor 102, white light photosensor 101 is installed on the 4th circle of signal white light lens stop, blue light photosensor 102 is installed on the 4th circle of signal blue-ray light lens stop, and the corresponding relation of the light of signal 10 and photosensor output is as follows:
The technology bar of photosensor is:
Because a station track switch is disperseed in the storehouse, causes very big difficulty to power devices, and if invest for alternating current, cost is very high, difficulty of construction is very large.As prioritization scheme, power supply 40 in the utility model can be photo-voltaic power supply, photo-voltaic power supply comprises solar panels (not shown), charger (not shown) and storage battery (not shown), and solar panels are connected to storage battery by charger, is battery charge.Adopt solar powered technology, solved because the power supply cost that causes track switch dispersion is high and the problem of constructional difficulties, played energy-saving and cost-reducing effect.As a specific embodiment, for improving power supply reliability, photo-voltaic power supply adopts double copies, and two solar panels and two chargers are battery charge simultaneously, after one of them solar panels or charger damage, does not affect the charging of storage battery.
Described magnetic control stopping device 30 comprises motor 301, leading screw 302, sliding nut 303, bearing 304, strong magnet 305.
The leading screw 302 of fixed lateral on the output shaft of described motor 301, cover has sliding nut 303 on the leading screw 302, and described sliding nut 303 is fixed together with strong magnet 305.When motor 301 rotates, drive leading screw 302 and rotate, thereby make sliding nut 303 parallel motions, and then drive the movement that strong magnet 305 is done horizontal direction.Strong magnet 305 can be fixed on the top of sliding nut 303.
Described motor 301 can be permanent magnet dc motor.
As prioritization scheme, the utility model anti-extrusion trouble automatic control device of shunting also comprises two electric machine supports 307, and the two ends of described leading screw 302 are fixed on the electric machine support 307 by bearing 304 respectively.
The utility model anti-extrusion trouble automatic control device of shunting also comprises epoxy resin base plate 308, and the bottom of described electric machine support 307 is fixed on the epoxy resin base plate 308.
As prioritization scheme, the utility model anti-extrusion trouble automatic control device of shunting also comprises two limit switch K1 and K2, the contact of limit switch K1 and K2 is connected on the power lead of motor 301, limit switch K1 and K2 lay respectively at two side lower parts of leading screw 302, certainly, also can be positioned at two upper lateral parts of leading screw 302, when sliding nut 303 moved to the position of the leading screw 302 that limit switch K1 and K2 correspondence, sliding nut 303 touched corresponding limit switch K1 or K2.
As prioritization scheme, the utility model strong magnet that the strong magnet 305 of anti-extrusion trouble automatic control device adopts rare earth rubidium iron boron to make of shunting, strong magnet 305 sends above it 150mm place, 1.6 the magnetic field of tesal, improve the sensitivity of locomotive induction coil reception point type impulse singla, solved the shortcoming of former engine monitoring apparatus (LKJ) speed ability sudden stop more than 3Km/h.This device can make the locomotive low cruise receive the automatic train stop signal when 1Km/h after using high strength magnet.
It is as described below that the utility model branches off the working process of anti-extrusion locomotive automatic stop system:
When 1, track switch was in " locking " state, the blue-ray light on the signal 10 was bright, and white light goes out, and strong magnet 305 positions are in the position near railway track 70; At this moment, when having locomotive to pass through, the magnetic induction sensor on the locomotive receives two and overlaps two point type impulse singlas that the anti-extrusion trouble automatic control device of shunting sends, and the locomotive automatic emergency brake is stopped, and prevents that locomotive from squeezing trouble.
When 2, track switch is in " open-minded " state, white light light blue light modulation on the signal 10 goes out, photosensor detects signal, signal is delivered to controller 20, controller 20 output high level drive motor 301 rotate, motor 301 drives leading screw 302 and rotates, leading screw 302 rotates drive sliding nut 303 and moves, make strong magnet 305 positions move on to position away from rail 70, when arriving assigned address, touch limit switch K1, thereby make limit switch K1 disconnect the power supply that cuts off motor 301, motor 301 stops operating, and strong magnet 305 is parked in assigned address.At this moment, when locomotive passed through, the magnetic induction sensor on the locomotive did not receive the point type impulse singla, and locomotive can freely pass through.
3, after locomotive passed through, according to driving needs watch keeper route setting, track switch was in locking states, and the white light of signal 10 goes out, and blue-ray light is bright.At this moment, photosensor detects signal, signal is delivered to controller 20, and controller 20 output low level signals are to motor 301, and motor 301 counter-rotatings drive leading screw 302 and rotate, leading screw 302 rotates drive sliding nut 303 and moves, make strong magnet 305 positions move on to the position of close rail 70, when arriving assigned address, touch limit switch K2, thereby limit switch K2 disconnection is cut off the electricity supply, motor 301 stops operating, and enters into again anti-extrusion trouble position this moment.
On the basis of above-mentioned all embodiment, the signal input part of described controller 20 can also link to each other with the inductor (not shown) of deciding to install on the antiposition outgoing mechanism of hand-operated points, described inductor adopts magnetic switch, when manually pulling track switch, when making track switch being in " open-minded " state, controller 20 output high level drive motor 301 rotate, make strong magnet 305 positions move on to position away from rail 70, when manually pulling track switch, when making track switch being in " locking " state, controller 20 output low level signals are to motor 301, and motor 301 rotates and makes strong magnet 305 positions move on to the position of close rail 70.Principle of work is identical with above-mentioned principle of work.
Locomotive carries out shunting service at the operation section that does not have track circuit, and the safe engine monitoring apparatus (LKJ) of locomotive is out-of-action, and at this time moving forward and backward of locomotive all is by judging whether to advance or retreat behind department's machine lookout signal.The judgement that often makes a mistake of the reasons such as You Yu lookout condition (, foggy weather too near from signal) and tired driver causes the generation of the crowded trouble accident of track switch; This utility model provides anti-extrusion trouble technical guarantee means for shunting locomotive when the operation section that does not have track circuit carries out shunting service.
The above only is preferred embodiment of the present utility model; do not create in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. anti-extrusion trouble automatic control device of shunting is characterized in that: comprise the photosensor that is installed on the signal, the controller that connects photosensor, the strong magnet that is controlled by the controller, the power supply that is connected with controller.
2. the anti-extrusion trouble automatic control device of shunting as claimed in claim 1, it is characterized in that: the described anti-extrusion trouble automatic control device of shunting also comprises described magnetic control stopping device, described magnetic control stopping device comprises motor, leading screw, sliding nut, bearing, described strong magnet, the leading screw of fixed lateral on the output shaft of described motor, cover has sliding nut on the leading screw, and described strong magnet is fixed on the described sliding nut.
3. the anti-extrusion trouble automatic control device of shunting as claimed in claim 2, it is characterized in that: described anti-extrusion trouble automatic control device also comprises two electric machine supports, and the two ends of described leading screw are fixed on the electric machine support by bearing respectively.
4. the anti-extrusion trouble automatic control device of shunting as claimed in claim 3, it is characterized in that: described anti-extrusion trouble automatic control device also comprises the epoxy resin base plate, and the bottom of described electric machine support is fixed on the epoxy resin base plate.
5. the anti-extrusion trouble automatic control device of shunting as claimed in claim 2, it is characterized in that: the anti-extrusion trouble automatic control device of shunting also comprises two limit switches, the contact of two limit switches is connected on the power supply of motor, limit switch lays respectively at the both sides of leading screw, when sliding nut moved to an end of limit switch, sliding nut touched corresponding limit switch.
6. such as each described anti-extrusion trouble automatic control device of shunting of claim 1 to 5, it is characterized in that: described photosensor comprises the first photosensor and the second photosensor, the first photosensor is installed on the 4th circle of signal the first lamp lens stop, and the second photosensor is installed on the 4th circle of signal the second lamp lens stop.
7. such as each described anti-extrusion trouble automatic control device of shunting of claim 1 to 5, it is characterized in that: the signal input part of described controller also links to each other with the sensor fixed, the antiposition outgoing mechanism that is installed in hand-operated points.
8. the anti-extrusion trouble automatic control device of shunting as claimed in claim 7 is characterized in that:, the sensor fixed, the antiposition outgoing mechanism of described hand-operated points adopts magnetic switch.
9. the anti-extrusion trouble automatic control device of shunting as claimed in claim 1, it is characterized in that: described power supply is photo-voltaic power supply.
10. an application rights requires the anti-extrusion locomotive automatic stop system of track switch of 1 to 9 each described anti-extrusion trouble automatic control device of shunting, it is characterized in that: comprise the magnetic induction sensor that is installed on the locomotive, the signal boxcar, engine monitoring apparatus, brake, and the described anti-extrusion trouble automatic control device of shunting of two covers that is installed in 13 ~ 15 meters, track switch front that to protect separated by a distance, described magnetic induction sensor is connected to engine monitoring apparatus by the signal boxcar, the brake of engine monitoring apparatus control locomotive, the signal of described magnetic induction sensor induction strong magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375039 CN202703631U (en) | 2012-07-30 | 2012-07-30 | Shunting switch split prevention automatic control device and rail switch split prevention locomotive automatic stop system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220375039 CN202703631U (en) | 2012-07-30 | 2012-07-30 | Shunting switch split prevention automatic control device and rail switch split prevention locomotive automatic stop system |
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| Publication Number | Publication Date |
|---|---|
| CN202703631U true CN202703631U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220375039 Expired - Fee Related CN202703631U (en) | 2012-07-30 | 2012-07-30 | Shunting switch split prevention automatic control device and rail switch split prevention locomotive automatic stop system |
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| CN (1) | CN202703631U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756746A (en) * | 2012-07-30 | 2012-10-31 | 合肥安迅铁道应用技术有限公司 | Shunting turnout crushing prevention automatic control device and turnout crushing prevention locomotive automatic stop system |
| CN107697100A (en) * | 2017-08-31 | 2018-02-16 | 兴化市鑫翔机械有限公司 | A kind of Efficient track point switch |
| EP4454970A1 (en) * | 2023-04-24 | 2024-10-30 | Siemens Mobility GmbH | Method for controlling a railway installation, holding point device, control device and railway installation |
-
2012
- 2012-07-30 CN CN 201220375039 patent/CN202703631U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756746A (en) * | 2012-07-30 | 2012-10-31 | 合肥安迅铁道应用技术有限公司 | Shunting turnout crushing prevention automatic control device and turnout crushing prevention locomotive automatic stop system |
| CN102756746B (en) * | 2012-07-30 | 2015-08-12 | 合肥安迅铁道应用技术有限公司 | To shunt anti-extrusion trouble automatic control device and the anti-extrusion locomotive automatic stop system of track switch |
| CN107697100A (en) * | 2017-08-31 | 2018-02-16 | 兴化市鑫翔机械有限公司 | A kind of Efficient track point switch |
| EP4454970A1 (en) * | 2023-04-24 | 2024-10-30 | Siemens Mobility GmbH | Method for controlling a railway installation, holding point device, control device and railway installation |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI RAILWAY LOCOMOTIVE COMPREHENSIVE DEVELOPM Effective date: 20140213 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140213 Address after: High tech Zone on the District of Hefei city in Anhui province 230000 8-103 room Patentee after: Hefei Anxun Railway Application Technology Co., Ltd. Patentee after: SHANGHAI RAILWAY LOCOMOTIVE COMPREHENSIVE DEVELOPMENT CO., LTD. Address before: High tech Zone on the District of Hefei city in Anhui province 230000 8-103 room Patentee before: Hefei Anxun Railway Application Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20150730 |
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| EXPY | Termination of patent right or utility model |