CN207510265U - The positioning pin anti-misoperation protector of operation vehicle for contact wire's platform - Google Patents
The positioning pin anti-misoperation protector of operation vehicle for contact wire's platform Download PDFInfo
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- CN207510265U CN207510265U CN201721401266.2U CN201721401266U CN207510265U CN 207510265 U CN207510265 U CN 207510265U CN 201721401266 U CN201721401266 U CN 201721401266U CN 207510265 U CN207510265 U CN 207510265U
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- positioning pin
- platform
- relay
- hydraulic system
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Abstract
The utility model provides a kind of positioning pin anti-misoperation protector of operation vehicle for contact wire's platform, including：Power supply, positioning pin inductive switch, positioning pin relay, hydraulic system normally-closed contact, hydraulic system electric loop；The power input of the feeder ear connection positioning pin inductive switch of power supply；The output terminal of positioning pin inductive switch is connect with positioning pin relay input terminal, and the output terminal of positioning pin relay is connect with the input terminal of hydraulic system normally-closed contact；The output terminal of hydraulic system normally-closed contact is connect with the input terminal of hydraulic system electric loop；Positioning pin inductive switch is fixed on positioning pin mount, positioning pin inductive switch is connected by positioning pin relay and the electric loop of hydraulic system；When positioning pin inductive switch senses positioning pin, a high level is exported, the electric loop of hydraulic system disconnects, it is impossible to work；When positioning pin inductive switch is not sensed by positioning pin, a low level is exported, hydraulic system is closed, normal work.
Description
Technical field
The utility model is related to operation vehicle for contact wire fields, and in particular to a kind of positioning pin of operation vehicle for contact wire's platform is prevented
Fault-operation protection device.
Background technology
In the operating platform for using operation vehicle for contact wire, the positioning pin effect of operation vehicle for contact wire is operating personnel：Behaviour
Make personnel after the completion of operation, be placed into its mounting base by platform reset, and by positioning pin, i.e., positioning pin playbacks, this work
Industry terminates, and platform will not operate to.And in real work, operating personnel are eager work or not in place to detection work, fixed
The phenomenon that position pin also begins to operating platform in mounting base, positioning pin slide fastener is caused to break generates.
Accordingly, it is desirable to provide a kind of positioning pin anti-misoperation protector so that when positioning pin is in mounting base, operator
Member can not operating platform, due to avoiding the operation thinking, cause the situation that positioning pin slide fastener is broken.
Utility model content
The purpose of this utility model is to provide a kind of positioning pin anti-misoperation protector of operation vehicle for contact wire's platform, energy
Enough make positioning pin in mounting base, disconnect the electric loop of hydraulic system, platform can not also be worked accordingly, only will be fixed
After position pin takes out from mounting base, hydraulic system could obtain electric, and platform can just be operated accordingly.
To achieve these goals, the utility model proposes a kind of positioning pin anti-misoperation of operation vehicle for contact wire's platform guarantors
Protection unit, including：
Power supply, positioning pin inductive switch, positioning pin relay, hydraulic system normally-closed contact, hydraulic system electric loop；
The feeder ear of the power supply connects the power input of the positioning pin inductive switch；
The output terminal of the positioning pin inductive switch is connect with the positioning pin relay input terminal, the positioning pin relay
The output terminal of device is connect with the input terminal of the hydraulic system normally-closed contact；
The output terminal of the hydraulic system normally-closed contact is connect with the input terminal of the hydraulic system electric loop.
Preferably, platform is further included to off normal warning circuit, including：Reset relay offs normal relay and platform is offed normal report
Warning lamp, the output terminal of the reset relay are connect with the input terminal of the positioning pin inductive switch, the relay of offing normal
Output terminal and platform alarm lamp of offing normal are connect.
Preferably, hydraulic platform system is switched equipped with platform reset, the platform normally opened contact of platform reset switch with
Described to reset after electrical connection, the platform normally-closed contact of the platform reset switch is connect with relay of offing normal.
Preferably, when hydraulic system platform reset, the platform normally opened contact is closed, the reset relay obtain it is electric,
The platform normally-closed contact disconnects, and the positioning pin inductive switch obtains electric, the relay electric-loss of offing normal, and the platform is offed normal report
Warning lamp goes out.
Preferably, when hydraulic system platform is offed normal, the platform normally opened contact disconnects, the reset relay dead electricity,
The platform normally-closed contact is closed, and the relay of offing normal obtains electric, and platform alarm lamp of offing normal is bright.
Preferably, it further includes positioning pin and does not reset warning circuit, including：First positioning pin alarm normally closed contact, second are determined
Position pin alarm normally closed contact and positioning pin indicator light, the first positioning pin alarm normally closed contact, second positioning pin alarm
Normally-closed contact and positioning pin indicator light series connection.
Preferably, the positioning pin relay is connect with the first positioning pin alarm normally closed contact；The relay of offing normal
Device is connect with the second positioning pin alarm normally closed contact.
Preferably, when the positioning pin is in mounting base, the positioning pin inductive switch exports high level, the positioning pin
Relay obtains electric, the positioning pin normally-closed contact disconnection, the hydraulic system electric loop disconnection, the positioning pin indicator light
It goes out.
Preferably, when the positioning pin is not in mounting base, the positioning pin inductive switch exports low level, the positioning
Relay electric-loss is sold, the hydraulic system normally-closed contact is closed, and the hydraulic system electric loop is closed, the positioning pin instruction
Lamp is bright.
Preferably, the positioning pin inductive switch is set on positioning pin mount.
A kind of beneficial effect of the positioning pin anti-misoperation protector of operation vehicle for contact wire's platform provided by the utility model
Fruit is：
1st, positioning pin inductive switch is fixed on positioning pin mount, positioning pin inductive switch passes through positioning pin relay
It is connect with the electric loop of hydraulic system；When positioning pin inductive switch senses positioning pin, a high level, hydraulic pressure system are exported
The disconnection of system, it is impossible to work；When positioning pin inductive switch is not sensed by positioning pin, a low level is exported, hydraulic system is closed
It closes, normal work；
2nd, platform positioning pin anti-misoperation protector further includes platform and offs normal warning circuit, and platform reset inductive switch leads to
It crosses platform normally opened contact and platform normally-closed contact and flat reset relay and platform relay of offing normal to be connected, when hydraulic system platform
After reset, reset relay obtains electric, and provides power to positioning pin inductive switch；After hydraulic system platform is offed normal, off normal
Relay obtains electric, and platform alarm lamp of offing normal is bright；
3rd, platform positioning pin anti-misoperation protector further includes positioning pin and does not reset warning circuit, positioning pin indicator light with
First positioning pin normally-closed contact, the series connection of the second positioning pin normally-closed contact, positioning pin relay and the alarm of the first positioning pin are normally closed tactile
Point connection, relay of offing normal are connect with the second positioning pin alarm normally closed contact；Positioning pin is not put into it by operating personnel in time
After mounting base, positioning pin indicator light is bright, and positioning pin is put into mounting base by prompting personnel in time, when positioning pin is put into installation
During seat, positioning pin indicator light goes out；It utmostly avoids due to artificial operation, the chain of platform positioning pin is broken
Situation makes platform operations more safe and reliable.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Description of the drawings
The utility model exemplary embodiment is described in more detail in conjunction with the accompanying drawings, the utility model it is above-mentioned
And other purposes, feature and advantage will be apparent.Wherein, in the exemplary embodiment, identical reference label leads to
Chang represents same parts.
Fig. 1 shows the positioning pin anti-misoperation protection of operation vehicle for contact wire's platform in the utility model one embodiment
The positioning pin inductive switch circuit diagram of device.
Fig. 2 shows the positioning pin anti-misoperation protections of operation vehicle for contact wire's platform in the utility model one embodiment
The hydraulic system electric loop schematic diagram of device.
Fig. 3 shows the positioning pin anti-misoperation protection of operation vehicle for contact wire's platform in the utility model one embodiment
The platform reset circuit diagram of device.
Fig. 4 shows the positioning pin anti-misoperation protection of operation vehicle for contact wire's platform in the utility model one embodiment
The positioning pin of device does not reset warning circuit schematic diagram
Fig. 5 shows the positioning pin anti-misoperation protection of operation vehicle for contact wire's platform in the utility model one embodiment
The positioning pin inductive switch scheme of installation of device.
Reference sign：
1st, stainless steel chain；2nd, pin mount is positioned；3rd, positioning pin；4th, positioning pin inductive switch.
Specific embodiment
The preferred embodiment of the utility model is more fully described below with reference to accompanying drawings.Although this reality is shown in attached drawing
With novel preferred embodiment, however, it is to be appreciated that the utility model is may be realized in various forms, without that should be illustrated here
Embodiment limited.On the contrary, thesing embodiments are provided so that the utility model is more thorough and complete, and can incite somebody to action
The scope of the utility model is completely communicated to those skilled in the art.
Fig. 1 shows the positioning pin anti-misoperation protection of operation vehicle for contact wire's platform in the utility model one embodiment
The positioning pin inductive switch circuit diagram of device, Fig. 2 shows the operation vehicle for contact wire in the utility model one embodiment
The hydraulic system electric loop schematic diagram of the positioning pin anti-misoperation protector of platform, Fig. 3 show the utility model one
The platform reset circuit diagram of the positioning pin anti-misoperation protector of operation vehicle for contact wire's platform in embodiment, Fig. 4 show
The positioning pin of the positioning pin anti-misoperation protector of operation vehicle for contact wire's platform in the utility model one embodiment is gone out
Warning circuit schematic diagram is not resetted, and Fig. 5 shows the positioning of operation vehicle for contact wire's platform in the utility model one embodiment
Sell the positioning pin inductive switch scheme of installation of anti-misoperation protector.
As shown in Figure 1 and Figure 2, it is anti-error to provide a kind of positioning pin of operation vehicle for contact wire's platform for the embodiment of the utility model
Operation protection device, including：
Power supply, positioning pin inductive switch 4, positioning pin relay K1, hydraulic system normally-closed contact K1.1, hydraulic system are electrical
Circuit；The power input of the feeder ear connection positioning pin inductive switch 4 of power supply；The output terminal of positioning pin inductive switch 4 is with determining
Position pin relay K1 input terminals connection, the output terminal of positioning pin relay K1 connect with the input terminal of hydraulic system closed contact K1.1
It connects；The output terminal of hydraulic system normally-closed contact K1.1 is connect with the input terminal of hydraulic system electric loop.
Specifically, positioning pin inductive switch is JJKG inductive switches, is a kind of position sensor with output switch parameter.
Specifically, positioning pin inductive switch 4 is fixed on positioning pin mount 2, positioning pin inductive switch 4 passes through positioning
The electric loop for selling relay K1 and hydraulic system connects；Positioning pin inductive switch 4 is equipped with the K2.1 connections of positioning pin normally opened contact,
Normally opened contact K2.1 obtains electric closure, and positioning pin inductive switch 4 obtains electric.
When positioning pin 3 is when positioning pin mount, positioning pin inductive switch 4 senses positioning pin 3, positioning pin inductive switch
4 one high level of output, positioning pin relay K1 dead electricity, hydraulic system closed contact K1.1 are disconnected, and hydraulic circuit breaks at this time
It opens, operating platform every operation cannot all carry out.
When positioning pin 3 is not when positioning pin mount, positioning pin inductive switch 4 exports a low level, positioning pin relay
Device K1 dead electricity, hydraulic system closed contact K1.1 are closed, at this time hydraulic circuit normally closed, and platform operation circuit is normal, can
Carry out platform normal operating.
Preferably, platform positioning pin anti-misoperation protector further includes platform and offs normal warning circuit, including：It is multiple
Position relay K2, relay KJ7 is offed normal and platform is offed normal alarm lamp, output terminal and the positioning pin inductive switch of reset relay K2
4 input terminal connection, offs normal the output terminal of relay KJ7 and platform alarm lamp of offing normal is connect.
Specifically, platform offs normal alarm lamp as two alarm lamps in parallel, and respectively platform is offed normal alarm lamp H1.2 peace
Platform is offed normal alarm lamp H2.2, when one alarm lamp failure when, another alarm lamp can still work.
Preferably, hydraulic platform system is switched equipped with platform reset, the platform normally opened contact of platform reset switch
SB5 is connect with resetting relay K2, and the platform normally-closed contact SB6 of platform reset switch is connect with the relay KJ7 that offs normal.
As shown in figure 3, reset relay K2 must be electric after operating platform reset, and provide power to positioning pin sensing and open
Close 4；After hydraulic system platform is offed normal, reset relay K2 dead electricity, the relay KJ7 that offs normal obtains electric, and platform is offed normal alarm lamp
H1.2 and platform the alarm lamp H2.2 that offs normal are bright.
Preferably, when hydraulic system platform reset, platform normally opened contact SB5 is closed, and is resetted relay K2 devices and is obtained
Electricity, platform normally-closed contact SB6 are disconnected, positioning pin inductive switch 4 electric, relay KJ7 dead electricity of offing normal, platform are offed normal alarm lamp
H1.2 and platform the alarm lamp H2.2 that offs normal go out.
Preferably, when hydraulic system platform is offed normal, platform normally opened contact SB5 is disconnected, and reset relay K2 loses
Electricity, platform normally-closed contact SB6 are closed, and the relay KJ7 that offs normal obtains electric, platform offs normal alarm lamp H1.2 and platform is offed normal alarm lamp
H2.2 is bright.
Preferably, platform positioning pin anti-misoperation protector further includes positioning pin and does not reset warning circuit, wraps
It includes：First positioning pin alarm normally closed contact K1.2, the second positioning pin alarm normally closed contact KJ7.3 and positioning pin indicator light EL1, the
One positioning pin alarm normally closed contact K1.2, the second positioning pin alarm normally closed contact KJ7.3 and positioning pin indicator light EL1 series connection.
Preferably, positioning pin relay K1 is connect with the first positioning pin alarm normally closed contact K1.2；Platform is offed normal
Relay KJ7 is connect with the second positioning pin alarm normally closed contact KJ7.3.
As shown in figure 4, after positioning pin inductive switch 4 senses positioning pin 3, hydraulic circuit is disconnected, operation is flat
Platform is unable to normal operating；After if hydraulic platform resets, positioning pin 3 is not put into positioning pin mount 2 by operating personnel in time
In, positioning pin indicator light EL1 is bright, and operating personnel is reminded to be put into positioning pin 3 in time in positioning pin mount 2, work as positioning pin
When being put into positioning pin mount 2, positioning pin indicator light EL1 goes out.
Preferably, when positioning pin 3 is when positioning pin mount 2, positioning pin inductive switch 4 exports high level, fixed
Position pin relay K1 obtains electric, hydraulic system normally-closed contact K1.1 disconnections, the disconnection of hydraulic system electric loop, positioning pin indicator light
EL1 goes out, and platform can not also be worked accordingly.
Preferably, when positioning pin 3 is not when positioning pin mount 2, positioning pin inductive switch 4 exports low level,
Positioning pin relay K1 dead electricity, hydraulic system normally-closed contact K1.1 are closed, and hydraulic system electric loop is closed, positioning pin indicator light
EL1 is bright, and after only positioning pin is taken out from mounting base, hydraulic system could obtain electric, and platform can just be operated accordingly,
It prevents stainless steel chain 1 from breaking, causes danger.
Preferably, positioning pin inductive switch 4 is set on positioning pin mount 2.
Specifically, as shown in figure 5,1 one end of stainless steel chain is connect with positioning pin 3, the other end connects with positioning pin mount 2
It connects, by a threaded hole on the riser for positioning pin mount 2, it is possible to which it is fixed to be bolted positioning pin inductive switch 4
On the pin mount 2 of position, regulates alignment pin inductive switch 4 arrives the distance of positioning pin 3, after the completion of adjusting, does not need to adjust again.
Embodiment
When operating personnel are stopped, after hydraulic system platform reset, platform reset normally opened contact SB5 is closed, after
Electric appliance K2 obtains electric, and SB6 normally-closed contacts disconnect, and platform is offed normal relay KJ7 dead electricity, positioning pin inductive switch 4 it is electric.
If positioning pin 3 is not put into positioning pin mount 2 by operating personnel at this time, positioning pin inductive switch 4 exports one
Low spot is put down, positioning pin relay K1 out of power, and the first positioning pin alarm normally closed contact K1.2 is closed, while platform is offed normal relay
KJ7 dead electricity, the second positioning pin alarm normally closed contact KJ7.3 are closed, and positioning pin indicator light EL1 is bright.Prompt operating personnel, positioning pin
3 are not put into positioning pin mount 2, and positioning pin 3 please is put into it positions in pin mount 2.
If positioning pin 3 is put into positioning pin mount 2 by operating personnel in time at this time, the output of positioning pin inductive switch 4 one
A high level, positioning pin relay K1 obtain electric, and the first positioning pin alarm normally closed contact K1.2 is disconnected, and positioning pin indicator light EL1 goes out,
Hydraulic system normally-closed contact K1.1 is disconnected, and hydraulic circuit disconnects, and operating personnel cannot carry out platform operation.
When operating personnel's preparation, if operating personnel do not take out positioning pin 3 from positioning pin mount 2, position
Pin inductive switch 4 exports a low spot and puts down, and positioning pin relay K1 does not have a little, and the first positioning pin alarm normally closed contact K1.2 is closed,
Platform is offed normal relay KJ7 dead electricity simultaneously, and the second positioning pin alarm normally closed contact KJ7.3 is closed, and positioning pin indicator light EL1 is bright.
If operating personnel take out positioning pin 3, the platform normally-closed contact SB5 of platform reset switch obtains electric, reset relay
K2 obtains electric, and reset relay is connect with positioning pin normally opened contact K2.1, and normally opened contact K2.1 obtains electric closure, positioning pin inductive switch
4 obtain electric, one low level of output, positioning pin relay K1 dead electricity, and hydraulic system normally-closed contact K1.1 is closed, and hydraulic system is restored
Normally, operating personnel can carry out normal operating to platform.
Operating personnel start to operate hydraulic system working platform, and hydraulic system platform rises at the beginning, hydraulic system platform
It offs normal, the platform normally-closed contact SB6 of platform reset inductive switch is closed, and reset relay KJ7 obtains electric, and the alarm of the second positioning pin is normal
Closed contact KJ7.3 is disconnected, and positioning pin indicator light EL1 goes out；The platform normally-closed contact SB5's of platform reset inductive switch is normally opened at this time
Contact disconnects, platform reset relay K2 dead electricity, 4 dead electricity of positioning pin inductive switch, positioning pin relay K1 dead electricity, hydraulic system
Normally-closed contact K1.1 is closed, and hydraulic circuit normal work does not influence platform normal operating.
The embodiment of the utility model is described above, above description is exemplary, and non-exclusive, and
It is also not necessarily limited to disclosed embodiment.In the case of the scope and spirit without departing from embodiment described, for this technology
Many modifications and changes will be apparent from for the those of ordinary skill in field.
Claims (10)
1. a kind of positioning pin anti-misoperation protector of operation vehicle for contact wire's platform, which is characterized in that including：
Power supply, positioning pin inductive switch, positioning pin relay, hydraulic system normally-closed contact, hydraulic system electric loop；
The feeder ear of the power supply connects the power input of the positioning pin inductive switch；
The output terminal of the positioning pin inductive switch is connect with the positioning pin relay input terminal, the positioning pin relay
Output terminal is connect with the input terminal of the hydraulic system normally-closed contact；
The output terminal of the hydraulic system normally-closed contact is connect with the input terminal of the hydraulic system electric loop.
2. the positioning pin anti-misoperation protector of operation vehicle for contact wire's platform according to claim 1, which is characterized in that
Platform is further included to off normal warning circuit, including：Reset relay offs normal relay and platform is offed normal alarm lamp, it is described reset after
The output terminal of electric appliance is connect with the input terminal of the positioning pin inductive switch, and the output terminal of the relay of offing normal is offed normal with platform
Alarm lamp connects.
3. the positioning pin anti-misoperation protector of operation vehicle for contact wire's platform according to claim 2, which is characterized in that
Hydraulic platform system is switched equipped with platform reset, and the platform normally opened contact of platform reset switch and the reset are after being electrically connected
It connects, the platform normally-closed contact of the platform reset switch is connect with the relay of offing normal.
4. the positioning pin anti-misoperation protector of operation vehicle for contact wire's platform according to claim 3, which is characterized in that
When hydraulic system platform reset, the platform normally opened contact is closed, and the reset relay obtains electric, the platform normally-closed contact
It disconnects, the positioning pin inductive switch obtains electric, the relay electric-loss of offing normal, and platform alarm lamp of offing normal goes out.
5. the positioning pin anti-misoperation protector of operation vehicle for contact wire's platform according to claim 4, which is characterized in that
When hydraulic system platform is offed normal, the platform normally opened contact disconnects, the reset relay dead electricity, the platform normally-closed contact
It is closed, the relay of offing normal obtains electric, and platform alarm lamp of offing normal is bright.
6. the positioning pin anti-misoperation protector of operation vehicle for contact wire's platform according to claim 5, which is characterized in that
It further includes positioning pin and does not reset warning circuit, including：First positioning pin alarm normally closed contact, the second positioning pin alarm normally closed contact
With positioning pin indicator light, the first positioning pin alarm normally closed contact, the second positioning pin alarm normally closed contact and positioning pin
Indicator light is connected.
7. the positioning pin anti-misoperation protector of operation vehicle for contact wire's platform according to claim 6, which is characterized in that
The positioning pin relay is connect with the first positioning pin alarm normally closed contact, off normal relay and described second positioning
Sell alarm normally closed contact connection.
8. the positioning pin anti-misoperation protector of operation vehicle for contact wire's platform according to claim 6, which is characterized in that
When the positioning pin is in mounting base, the positioning pin inductive switch exports high level, the positioning pin relay obtain it is electric, it is described
Positioning pin normally-closed contact disconnects, and the hydraulic system electric loop disconnects, and the positioning pin indicator light goes out.
9. the positioning pin anti-misoperation protector of operation vehicle for contact wire's platform according to claim 6, which is characterized in that
When the positioning pin is not in mounting base, the positioning pin inductive switch exports low level, the positioning pin relay electric-loss, institute
Hydraulic system normally-closed contact closure is stated, the hydraulic system electric loop is closed, and the positioning pin indicator light is bright.
10. the positioning pin anti-misoperation protector of operation vehicle for contact wire's platform according to claim 1, feature exist
In the positioning pin inductive switch is set on positioning pin mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721401266.2U CN207510265U (en) | 2017-10-27 | 2017-10-27 | The positioning pin anti-misoperation protector of operation vehicle for contact wire's platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721401266.2U CN207510265U (en) | 2017-10-27 | 2017-10-27 | The positioning pin anti-misoperation protector of operation vehicle for contact wire's platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207510265U true CN207510265U (en) | 2018-06-19 |
Family
ID=62536491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721401266.2U Active CN207510265U (en) | 2017-10-27 | 2017-10-27 | The positioning pin anti-misoperation protector of operation vehicle for contact wire's platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207510265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107696916A (en) * | 2017-10-27 | 2018-02-16 | 中车太原机车车辆有限公司 | The alignment pin anti-misoperation protector of operation vehicle for contact wire's platform |
-
2017
- 2017-10-27 CN CN201721401266.2U patent/CN207510265U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107696916A (en) * | 2017-10-27 | 2018-02-16 | 中车太原机车车辆有限公司 | The alignment pin anti-misoperation protector of operation vehicle for contact wire's platform |
| CN107696916B (en) * | 2017-10-27 | 2024-04-26 | 太原中车时代轨道工程机械有限公司 | Misoperation preventing protection device for locating pin of contact net operation vehicle platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200507 Address after: 030000 No. 129 Xinghua West Street, Wan Berlin District, Shanxi, Taiyuan Patentee after: Taiyuan CRRC times Track Engineering Machinery Co., Ltd Address before: 030027 No. 129 Xinghua West Street, Shanxi, Taiyuan Patentee before: CRRC TAIYUAN Co.,Ltd. |
|
| TR01 | Transfer of patent right |