CN103661494A - Method for detecting straddle type joint type turnout - Google Patents
Method for detecting straddle type joint type turnout Download PDFInfo
- Publication number
- CN103661494A CN103661494A CN201310747571.7A CN201310747571A CN103661494A CN 103661494 A CN103661494 A CN 103661494A CN 201310747571 A CN201310747571 A CN 201310747571A CN 103661494 A CN103661494 A CN 103661494A
- Authority
- CN
- China
- Prior art keywords
- signal
- track
- switch
- turn
- fault
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses a method for detecting a straddle type joint type turnout. The method comprises the following steps: 1) data collecting, 2) data displaying, 3) failure warning, 4) unlocking and locking timing, 5) straightening and bending timing, 6) turnout track timing, 7) turnout track counting and failure accumulating, and 8) failure accumulating time zero clearing. According to the method, switch single information of more turnout control systems is expanded, the time for maintaining and overhauling the turnout is shortened, and the method mainly completes the functions such as turnout failure control, turnout track counting, turnout failure track counting, touch screen image switching, unlocking and locking timing, straightening and bending timing, turnout track timing, and signal real-time display.
Description
Technical field
The present invention relates to a kind of joint turnout method of inspection, relate in particular to a kind of straddle-type joint turnout method of inspection, be mainly used in domestic straddle-type joint turnout control system.
Background technology
At present straddle-type monorail transportation system has had proven technique in countries such as Japan, the U.S., Europe, however in China's ability in the stage at the early-stage, in each supporting technology field of Monorail PC Track Girders, all have much room for improvement and perfect.In view of track switch user, reflect the factors such as domestic switch breakdown rate is higher, maintenance trouble, develop new track switch method of inspection to factory's interests and all necessary to the contribution of domestic track switch industry.
For track switch check implement or method of inspection at present conventional have following several:
1, in printed board, weld diode displaying key signal job information, this is the simplest method; Advantage is that cost is lower, and shortcoming is that quantity of information is little, and extensibility, does not safeguard and change trouble.
2, the track switch apparatus monitor system that PLC and eight digit number code character display tube form.Advantage is to contain much information, and safeguards and changes conveniently, and data message increases convenient; Shortcoming is to use comparatively trouble, needs the ripe back of the body switch breakdown numbering of staff or when et out of order, contrasts fault number table inquiry fault, and then according to malfunction coding analysis and looking up the fault reason, expending time in more, easily causes great operation accident.
3, the railway points system check implement that PLC and touch-screen form.Advantage is to show to contain much information, safeguard and change conveniently, data message increases convenient, data message shows more directly perceived, data message can also have corresponding text description except the form with figure shows, the Word message that staff can provide according to touch-screen is more directly understood now service condition of track switch sooner; Shortcoming is that two kinds of costs are high above for cost.
Summary of the invention
For above shortcomings part in prior art, the invention provides a kind of extensibility, contain much information, easy to maintenance, and the short straddle-type joint turnout method of inspection of maintenance time.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
Straddle-type joint turnout method of inspection, has adopted a PLC and a straddle-type joint turnout check implement that touch-screen forms in the method; The method comprises the steps:
1) data acquisition: straddle-type joint turnout check implement gathers each monitoring point switch Dynamic Signal in whole switch control system by the load module of PLC; The signal gathering comprises: the working signal of lock out motor, turn-out track motor and deflection motor and overload fault signal; All relay, contactless switch and position switch signals in lock out motor, turn-out track motor and deflection motor control loop and detection loop; Track switch location and antiposition command signal; Track switch location or antiposition represent signal; Track switch beam, the pivoted arm signal that puts in place; Blocking device release puts, locks the signal that puts in place in place; Bending device is scratched directly, deflection puts signal in place; And whole railway points system breakdown signal; Described whole railway points system breakdown signal comprises that locking is overtime, release is overtime, scratch directly overtime, deflection is overtime, turn-out track is overtime, lock out motor overload and turn-out track motor overload information;
2) data show: touch-screen is that the information of each monitoring point of railway points system is shown in real time, have the picture of simulation track switch operation to switch on touch-screen, number of stoppages accumulative total information, failure message, the zero clearing of fault accumulative total; The working signal and the overload fault signal that also have lock out motor, turn-out track motor, deflection motor, all relays, contactless switch and position switch signal in the control loop of lock out motor, turn-out track motor, deflection motor and detection loop, track switch location and antiposition command signal, track switch beam, the pivoted arm signal that puts in place, blocking device release puts, locks the signal that puts in place in place, bending device is scratched directly, deflection puts signal in place, and whole railway points system breakdown signal;
3) fault alarm: when any monitoring point et out of order of track switch, PLC internal logic program is made a response immediately and allowed track switch shutdown, and sends alerting signal to Che Kong chamber, station simultaneously, in time trouble shooting;
4) release and locking timing: after assigning turn-out track order, unlock command starts to carry out, and now starts release timing, if in specific time, do not receive release to put in place signal provides release time out fault information and track switch is shut down; After track switch beam and pivoted arm turn-out track put in place, lock command starts to carry out, and locks timing simultaneously and starts, and in specific time, if PLC does not receive track switch locking, the signal that puts in place is sent locking time out fault information, and track switch is shut down;
5) while scratching direct sum flexion spring: after changing points order is assigned, scratch straight or deflection order and start to carry out, start while scratching straight or flexion spring simultaneously, if PLC does not receive and scratches the straight or deflection signal that puts in place in specific time, track switch is sent in car control chamber and scratch straight or deflection fault, track switch is not shut down;
6) turn-out track timing: after changing points order is assigned, start turn-out track timing; In specific time, track switch completes turn-out track, stops turn-out track timing zero clearing time meter, otherwise, changing points time out fault signal, track switch shutdown are sent in car control chamber;
7) turn-out track counting and fault accumulative total: once, counting once for the every turn-out track of track switch; The every generation primary fault of track switch, carries out primary fault accumulative total;
8) fault cumulative number zero clearing: fault accumulative total is the reliability and stability of being convenient to investigate track switch, fault cumulative number is stored in designated area, the inner M memory space of PLC, and this designated area is set to power-off protection pattern.
Compared with prior art, tool of the present invention has the following advantages:
1, the method is expanded each on-off signal information in more switch control system, shortens the time of track switch repair and maintenance.
When 2, the method mainly completes switch breakdown control, changing points counting, switch breakdown turn-out track counting, touch-screen Picture switch, unlocking/locking devise a stratagem, the function such as turn-out track timing, signal demonstration in real time.
Accompanying drawing explanation
Fig. 1 is the structural representation of straddle-type joint turnout check implement;
Fig. 2 is the diagram of circuit that straddle-type joint turnout detects.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Straddle-type joint turnout method of inspection, has adopted a straddle-type joint turnout check implement that S7-300PLC He Yitai Siemens MP277 touch-screen forms, as shown in Figure 1 in the method.The method comprises the steps (as shown in Figure 2):
1) data acquisition: straddle-type joint turnout check implement gathers each monitoring point switch Dynamic Signal in whole switch control system by the load module of PLC; The signal gathering comprises: the working signal of lock out motor, turn-out track motor and deflection motor and overload fault signal; All relay, contactless switch and position switch signals in lock out motor, turn-out track motor and deflection motor control loop and detection loop; Track switch location and antiposition command signal; Track switch location or antiposition represent signal; Track switch beam, the pivoted arm signal that puts in place; Blocking device release puts, locks the signal that puts in place in place; Bending device is scratched directly, deflection puts signal in place; And whole railway points system breakdown signal; Described whole railway points system breakdown signal comprises that locking is overtime, release is overtime, scratch directly overtime, deflection is overtime, turn-out track is overtime, lock out motor overload and turn-out track motor overload information.
2) data show: touch-screen is that the information of each monitoring point of railway points system is shown in real time, have the picture of simulation track switch operation to switch on touch-screen, number of stoppages accumulative total information, failure message, the zero clearing of fault accumulative total; The working signal and the overload fault signal that also have lock out motor, turn-out track motor, deflection motor, all relays, contactless switch and position switch signal in the control loop of lock out motor, turn-out track motor, deflection motor and detection loop, track switch location and antiposition command signal, track switch beam, the pivoted arm signal that puts in place, blocking device release puts, locks the signal that puts in place in place, bending device is scratched directly, deflection puts signal in place, and whole railway points system breakdown signal.
3) fault alarm: when any monitoring point et out of order of track switch, PLC internal logic program is made a response immediately and allowed track switch shutdown, and sends alerting signal to Che Kong chamber, station simultaneously, in time trouble shooting.
4) release or locking timing: after assigning turn-out track order (KLD/KLF), unlock command starts to carry out, now start release timing, if in specific time (5s), do not receive that the release signal that puts in place provides the shutdown of release time out fault information and track switch; After track switch beam and pivoted arm turn-out track put in place, lock command starts to carry out, and locks timing simultaneously and starts, and in specific time (5s), if PLC does not receive track switch locking, the signal that puts in place is sent locking time out fault information, and track switch is shut down.
5) while scratching straight or flexion spring: after changing points order is assigned; scratching straight or deflection order starts to carry out; start while scratching straight or flexion spring simultaneously; if PLC does not receive and scratches the straight or deflection signal that puts in place in specific time (5～10s); track switch is sent in car control chamber and scratch straight or deflection fault, track switch is not shut down.
6) turn-out track timing: after changing points order is assigned, start turn-out track timing; In specific time (15s), track switch completes turn-out track, stops turn-out track timing zero clearing time meter, otherwise, changing points time out fault signal, track switch shutdown are sent in car control chamber.
7) turn-out track counting and fault accumulative total: once, counting once for the every turn-out track of track switch; The every generation primary fault of track switch, carries out primary fault accumulative total; Track switch timing and fault accumulative total can be used as the important references data that staff understands track switch performance, are also the master records of turnout work situation simultaneously.
8) fault cumulative number zero clearing: fault accumulative total is the reliability and stability of being convenient to investigate track switch, fault cumulative number is stored in designated area, the inner M memory space of PLC, and this designated area is set to power-off protection pattern.After PLC power-off, the data of preserving in this region can not lost, as long as recover PLC power supply within 7 working days.The main purpose that the zero clearing of fault cumulative number is set is to facilitate user to investigate the service condition of track switch in a certain special time period.
These 8 is all to complete by PLC internal logic relation above, the corresponding signal gathering by processing PLC load module, completion logic judgement.
The method has the plurality of advantages such as maintenance update facilitates, contains much information, Information expansion is easy.By consulting the information of each check point of track switch control setup in check implement, staff can understand the service condition of track switch control setup rapidly, when track switch et out of order, staff also can consult the information of each point in checking system and find in time and solve fault.Track switch check implement has improved turnout work personnel's work efficiency rate widely, has also reduced to a great extent staff's work capacity.
PLC digital quantity input module is collected each switching point adhesive signal of whole Riding-type Monorail Switch system, and with the form of indicator lamp real-time being presented in face of staff in touch-screen, the information that turnout work personnel can provide according to touch-screen judges working condition now of whole track switch and searches switch breakdown reason.
Fig. 2 can find out PLC except collecting and for touch-screen provides each on-off signal, also having participated in partly controlling.Railway points system breaks down, and breakdown signal is processed and Realtime Alerts by PLC; During track switch unlocking/locking devise a stratagem, turn-out track timing, during scratch directly/flexion spring (flexible switch), changing points counting and changing points number of stoppages accumulative total are all to be processed by PLC.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (1)
1. straddle-type joint turnout method of inspection, is characterized in that, has adopted in the method a PLC and a straddle-type joint turnout check implement that touch-screen forms; The method comprises the steps:
1) data acquisition: straddle-type joint turnout check implement gathers each monitoring point switch Dynamic Signal in whole switch control system by the load module of PLC; The signal gathering comprises: the working signal of lock out motor, turn-out track motor and deflection motor and overload fault signal; All relay, contactless switch and position switch signals in lock out motor, turn-out track motor and deflection motor control loop and detection loop; Track switch location and antiposition command signal; Track switch location or antiposition represent signal; Track switch beam, the pivoted arm signal that puts in place; Blocking device release puts, locks the signal that puts in place in place; Bending device is scratched directly, deflection puts signal in place; And whole railway points system breakdown signal; Described whole railway points system breakdown signal comprises that locking is overtime, release is overtime, scratch directly overtime, deflection is overtime, turn-out track is overtime, lock out motor overload and turn-out track motor overload information;
2) data show: touch-screen is that the information of each monitoring point of railway points system is shown in real time, have the picture of simulation track switch operation to switch on touch-screen, number of stoppages accumulative total information, failure message, the zero clearing of fault accumulative total; The working signal and the overload fault signal that also have lock out motor, turn-out track motor, deflection motor, all relays, contactless switch and position switch signal in the control loop of lock out motor, turn-out track motor, deflection motor and detection loop, track switch location and antiposition command signal, track switch beam, the pivoted arm signal that puts in place, blocking device release puts, locks the signal that puts in place in place, bending device is scratched directly, deflection puts signal in place, and whole railway points system breakdown signal;
3) fault alarm: when any monitoring point et out of order of track switch, PLC internal logic program is made a response immediately and allowed track switch shutdown, and sends alerting signal to Che Kong chamber, station simultaneously, in time trouble shooting;
4) release and locking timing: after assigning turn-out track order, unlock command starts to carry out, and now starts release timing, if in specific time, do not receive release to put in place signal provides release time out fault information and track switch is shut down; After track switch beam and pivoted arm turn-out track put in place, lock command starts to carry out, and locks timing simultaneously and starts, and in specific time, if PLC does not receive track switch locking, the signal that puts in place is sent locking time out fault information, and track switch is shut down;
5) while scratching direct sum flexion spring: after changing points order is assigned, scratch straight or deflection order and start to carry out, start while scratching straight or flexion spring simultaneously, if PLC does not receive and scratches the straight or deflection signal that puts in place in specific time, track switch is sent in car control chamber and scratch straight or deflection fault, track switch is not shut down;
6) turn-out track timing: after changing points order is assigned, start turn-out track timing; In specific time, track switch completes turn-out track, stops turn-out track timing zero clearing time meter, otherwise, changing points time out fault signal, track switch shutdown are sent in car control chamber;
7) turn-out track counting and fault accumulative total: once, counting once for the every turn-out track of track switch; The every generation primary fault of track switch, carries out primary fault accumulative total;
8) fault cumulative number zero clearing: fault accumulative total is the reliability and stability of being convenient to investigate track switch, fault cumulative number is stored in designated area, the inner M memory space of PLC, and this designated area is set to power-off protection pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310747571.7A CN103661494B (en) | 2013-12-31 | 2013-12-31 | Straddle-type joint turnout method of inspection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310747571.7A CN103661494B (en) | 2013-12-31 | 2013-12-31 | Straddle-type joint turnout method of inspection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103661494A true CN103661494A (en) | 2014-03-26 |
| CN103661494B CN103661494B (en) | 2016-01-06 |
Family
ID=50300589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310747571.7A Active CN103661494B (en) | 2013-12-31 | 2013-12-31 | Straddle-type joint turnout method of inspection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103661494B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932485A (en) * | 2015-05-29 | 2015-09-23 | 中国铁路通信信号上海工程局集团有限公司 | Railway track switch point machine fault prediction system and method |
| CN108263428A (en) * | 2016-12-30 | 2018-07-10 | 比亚迪股份有限公司 | switch control system |
| CN108267999A (en) * | 2016-12-30 | 2018-07-10 | 比亚迪股份有限公司 | The intelligent monitor system of track switch |
| CN108657226A (en) * | 2017-03-31 | 2018-10-16 | 比亚迪股份有限公司 | Changing points driving mechanism and straddle-type monorail with it |
| CN109240190A (en) * | 2017-07-10 | 2019-01-18 | 比亚迪股份有限公司 | The method and device of normal switch system switched period |
| CN109229146A (en) * | 2017-07-10 | 2019-01-18 | 比亚迪股份有限公司 | The control method and system of track switch retaining mechanism |
| CN109305190A (en) * | 2017-07-28 | 2019-02-05 | 比亚迪股份有限公司 | Switch control system, method and track switch controller |
| CN109305193A (en) * | 2018-10-11 | 2019-02-05 | 重庆市轨道交通（集团）有限公司 | A kind of monitoring method of changing points |
| CN110758461A (en) * | 2018-07-26 | 2020-02-07 | 比亚迪股份有限公司 | Control device for turnout locking mechanism and control system for turnout switch driving mechanism |
| CN111098723A (en) * | 2018-10-26 | 2020-05-05 | 上海汽车集团股份有限公司 | Charging port electronic lock control method and system |
| CN112415917A (en) * | 2020-12-08 | 2021-02-26 | 卡斯柯信号有限公司 | Turnout control system and method for traction of single or multiple point switches |
| CN112937636A (en) * | 2021-03-26 | 2021-06-11 | 卡斯柯信号有限公司 | Turnout section display system and turnout section display method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001213321A (en) * | 2000-02-01 | 2001-08-07 | Hitachi Ltd | Guide stable surface folding device for joint type divider of ride-on type monorail |
| CN102689640A (en) * | 2012-06-07 | 2012-09-26 | 中铁宝桥集团有限公司 | System and method for monitoring switching synchronism of joint three-way/five-way turnout |
| CN202463843U (en) * | 2012-01-11 | 2012-10-03 | 重庆华渝电气仪表总厂 | Straddle type jointed flexible turnout control system |
| CN202641744U (en) * | 2012-06-07 | 2013-01-02 | 中铁宝桥集团有限公司 | Joint type three-way/five-way turnout switching synchronism monitoring system |
-
2013
- 2013-12-31 CN CN201310747571.7A patent/CN103661494B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001213321A (en) * | 2000-02-01 | 2001-08-07 | Hitachi Ltd | Guide stable surface folding device for joint type divider of ride-on type monorail |
| CN202463843U (en) * | 2012-01-11 | 2012-10-03 | 重庆华渝电气仪表总厂 | Straddle type jointed flexible turnout control system |
| CN102689640A (en) * | 2012-06-07 | 2012-09-26 | 中铁宝桥集团有限公司 | System and method for monitoring switching synchronism of joint three-way/five-way turnout |
| CN202641744U (en) * | 2012-06-07 | 2013-01-02 | 中铁宝桥集团有限公司 | Joint type three-way/five-way turnout switching synchronism monitoring system |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932485A (en) * | 2015-05-29 | 2015-09-23 | 中国铁路通信信号上海工程局集团有限公司 | Railway track switch point machine fault prediction system and method |
| CN108263428A (en) * | 2016-12-30 | 2018-07-10 | 比亚迪股份有限公司 | switch control system |
| CN108267999A (en) * | 2016-12-30 | 2018-07-10 | 比亚迪股份有限公司 | The intelligent monitor system of track switch |
| CN108657226A (en) * | 2017-03-31 | 2018-10-16 | 比亚迪股份有限公司 | Changing points driving mechanism and straddle-type monorail with it |
| CN109240190A (en) * | 2017-07-10 | 2019-01-18 | 比亚迪股份有限公司 | The method and device of normal switch system switched period |
| CN109229146A (en) * | 2017-07-10 | 2019-01-18 | 比亚迪股份有限公司 | The control method and system of track switch retaining mechanism |
| CN109305190A (en) * | 2017-07-28 | 2019-02-05 | 比亚迪股份有限公司 | Switch control system, method and track switch controller |
| CN110758461A (en) * | 2018-07-26 | 2020-02-07 | 比亚迪股份有限公司 | Control device for turnout locking mechanism and control system for turnout switch driving mechanism |
| CN110758461B (en) * | 2018-07-26 | 2021-04-20 | 比亚迪股份有限公司 | Control system of turnout switch driving mechanism |
| CN109305193A (en) * | 2018-10-11 | 2019-02-05 | 重庆市轨道交通（集团）有限公司 | A kind of monitoring method of changing points |
| CN111098723A (en) * | 2018-10-26 | 2020-05-05 | 上海汽车集团股份有限公司 | Charging port electronic lock control method and system |
| CN112415917A (en) * | 2020-12-08 | 2021-02-26 | 卡斯柯信号有限公司 | Turnout control system and method for traction of single or multiple point switches |
| CN112415917B (en) * | 2020-12-08 | 2022-06-21 | 卡斯柯信号有限公司 | Turnout control system and method for traction of single or multiple point switches |
| CN112937636A (en) * | 2021-03-26 | 2021-06-11 | 卡斯柯信号有限公司 | Turnout section display system and turnout section display method |
| CN112937636B (en) * | 2021-03-26 | 2022-07-05 | 卡斯柯信号有限公司 | Turnout section display system and turnout section display method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103661494B (en) | 2016-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103661494B (en) | Straddle-type joint turnout method of inspection | |
| CN103219798B (en) | Direct-current transmission converter valve control protection system and control protection method thereof | |
| CN103985008B (en) | A kind of urban Underground pipeline intelligent monitor system | |
| CN106254100A (en) | A kind of data disaster tolerance methods, devices and systems | |
| CN107161180B (en) | Novel control, supervision, monitoring integration hump all-electronin automated system | |
| CN106059078B (en) | Condition monitoring system is moved back in a kind of soft pressing plate throwing of intelligent substation relay protection | |
| CN205281203U (en) | Fire hydrant supervisory systems based on thing networking | |
| CN103971294B (en) | One kind assesses information display system based on power transmission and transformation equipment state | |
| CN107024911A (en) | A kind of nuclear power plant's numerical control system Logical processing unit | |
| CN106444553A (en) | Scattered collection driving system based on double 2-vote-2 architecture | |
| CN105894748A (en) | Active power failure alarm equipment for distribution network | |
| JP2019115182A (en) | Master station device of power distribution automated system | |
| CN101697400B (en) | Method for preventing accident of cross operation by five-prevention shutting system | |
| CN204965697U (en) | Clamp plate state is kept watch on and is prevented mistake management system | |
| CN109672271A (en) | The processing method of carrier wave expansion module and power-off event | |
| CN201774553U (en) | Monitoring device and system comprehensively detecting train detection equipment at high speed | |
| CN205941681U (en) | ESD's direct current voltage detecting system in field of gas transmission station | |
| CN205583840U (en) | Power equipment monitoring device | |
| CN104318406A (en) | Management system for enterprise equipment | |
| CN101621187B (en) | Implement method of electric substation automation system for supporting double measurement and control | |
| CN208737294U (en) | A kind of monitoring system for tobacco smoke equipment | |
| CN106656558B (en) | Method for prolonging service life of storage unit of data acquisition server | |
| CN105577737A (en) | Data aggregation monitoring method, data aggregation monitoring device and system | |
| CN112587847B (en) | Fire-fighting gas cylinder monitoring system and equipment matching method | |
| CN101398679A (en) | Novel safety and defence information processing terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 400021 Yubei District Longshan Road, Chongqing, No. 68 Patentee after: CHONGQING HUAYU HEAVY INDUSTRY ELECTROMECHANICAL CO., LTD. Address before: 400021 Yubei District Longshan Road, Chongqing, No. 68 Patentee before: CHONGQING GEHAI ELECTROMECHANICAL CO., LTD. |