CN112339793A - Reverse cutting system of point switch - Google Patents
Reverse cutting system of point switch Download PDFInfo
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- CN112339793A CN112339793A CN202011280698.9A CN202011280698A CN112339793A CN 112339793 A CN112339793 A CN 112339793A CN 202011280698 A CN202011280698 A CN 202011280698A CN 112339793 A CN112339793 A CN 112339793A
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- switch
- gear
- electrically connected
- switch machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/10—Locking mechanisms for points; Means for indicating the setting of points
- B61L5/102—Controlling electrically
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- Mechanical Engineering (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention provides a switch machine back cut system, which comprises: a switch machine having a plurality of first connection lines and at least one second connection line; a first terminal having a plurality of third connection lines; a second terminal having a plurality of fourth connection lines and at least one fifth connection line; the reverse switching operation platform is provided with a first change-over switch, and when the first change-over switch is set to be in a first gear, the plurality of first connecting wires and the plurality of third connecting wires are electrically connected in a one-to-one correspondence manner; when the gear is at the second gear, the first connecting lines are electrically connected with the fourth connecting lines in a one-to-one correspondence mode, and the at least one second connecting line is electrically connected with the at least one fifth connecting line in a one-to-one correspondence mode. The switch wire reverse cutting system provided by the invention can realize the quick switching of different wire systems through the first change-over switch, reduce the operation difficulty and improve the adjustment efficiency of the control terminal.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a switch machine reverse cutting system.
Background
The point switch is an important signal basic device for reliably switching the position of the turnout, changing the opening direction of the turnout, locking the switch point and reflecting the position of the turnout, and can well ensure the driving safety, improve the transportation efficiency and improve the labor intensity of driving personnel.
In the urban rail transit transformation project, a switch machine may be shared equipment, but the situation that internal wiring is different between a newly-built control terminal and an existing control terminal may occur, in the temporary transition process, if the switch machine needs to be controlled by different control terminals in an inverted mode, the internal wiring needs to be modified, so that the drive acquisition requirements of different control terminals can be matched.
Disclosure of Invention
The invention provides a switch machine back-off system which is used for overcoming the defects that an operation process of an adjusting mode in the prior art is complex, and the adjusting efficiency between a newly-built control terminal and an existing control terminal is low, realizing the quick switching of different wire systems through a first change-over switch, reducing the operation difficulty and improving the adjusting efficiency of the control terminal.
The invention provides a switch machine reverse cutting system, which comprises: a switch machine having a plurality of first connection lines and at least one second connection line; a first terminal having a plurality of third connection lines; a second terminal having a plurality of fourth connection lines and at least one fifth connection line; the reverse switching operation platform is provided with a first change-over switch, and when the first change-over switch is set to be in a first gear, the plurality of first connecting wires and the plurality of third connecting wires are electrically connected in a one-to-one correspondence manner; when the gear is at a second gear, the first connecting lines are electrically connected with the fourth connecting lines in a one-to-one correspondence mode, and the second connecting lines are electrically connected with the fifth connecting lines in a one-to-one correspondence mode.
According to the present invention, there is provided a switch machine back-cut system, further comprising: the second connecting line is connected into the inside of the switch machine through the second change-over switch, and the second change-over switch is used for controlling connection and disconnection of the second connecting line.
According to the switch machine reverse switching system provided by the invention, the second change-over switch is a relay.
According to the present invention, there is provided a switch machine back-cut system, wherein the second connecting line comprises: one end of the first section is connected into the inside of the switch machine, and the other end of the first section is electrically connected with a movable contact of the relay; and one end of the second section is electrically connected with the fifth connecting wire when the first switching switch is in the second gear, and the other end of the second section is electrically connected with the first static contact of the relay.
According to the switch machine back-off system provided by the invention, the switch machine is also provided with a sixth connecting wire corresponding to the at least one second connecting wire, one end of the sixth connecting wire is connected into the interior of the switch machine, and the other end of the sixth connecting wire is electrically connected with the second stationary contact of the relay. Is ═ i
According to the present invention, there is provided a switch machine back-cut system, further comprising: and the sixth connecting wire is electrically connected with the second stationary contact of the relay through the rectifying box.
According to the present invention, there is provided a switch machine back-cut system, further comprising: the first indicator light is arranged on the inverted cutting operation table, and the first indicator light is electrically connected with the second stationary contact.
According to the switch machine back cut system provided by the invention, the control end of the relay is arranged on the back cut operation platform.
According to the present invention, there is provided a switch machine back-cut system, further comprising: the second indicator light is arranged on the reverse switching operation table, the second indicator light is electrically connected with the first change-over switch, and the second indicator light is used for indicating the gear state of the first change-over switch.
According to the present invention, there is provided a switch machine reverse switching system, wherein the second indicator light comprises: the first gear indicator lamp and the second gear indicator lamp are arranged, the first switch is set to be in the first gear and started, and the second gear indicator lamp is started when the second gear is arranged.
According to the switch wire back-off system provided by the invention, the switch machine can be connected with the control terminals of different wire systems by switching the first gear and the second gear on the first change-over switch, the quick switching of different wire systems can be realized through the first change-over switch, the operation difficulty is reduced, and the adjustment efficiency of the control terminals is improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a switch line back-cutting system provided in the present invention;
fig. 2 is a second schematic structural diagram of a switch line back-cutting system provided in the present invention;
fig. 3 is an engineering layout diagram of the switch wire reverse cutting system provided by the present invention.
Reference numerals:
10: a switch machine; 11: a first connecting line; 12: a second connecting line;
13: a first stage; 14: a second stage; 15: a sixth connecting line;
20: a first terminal; 21: a third connecting line; 30: a second terminal;
31: a fourth connecting line; 32: a fifth connecting line; 40: an inverted cutting operation table;
41: a first changeover switch; 42: a relay; 43: a movable contact;
44: a first stationary contact; 45: a second stationary contact; 46: a control end;
50: a rectification box; 60: a first indicator light; 61: a first gear indicator light;
62: and a second stop indicator light.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The switch machine back-cut system of the present invention is described below with reference to fig. 1-3.
As shown in fig. 1 and 2, an embodiment of the present invention provides a switch machine back-cut system, including: switch machine 10, first terminal 20, second terminal 30 and back-off station 40.
The switch machine 10 has a plurality of first connecting lines 11 and at least one second connecting line 12.
It is understood that the switch machine 10(switch machine/point machine) is an actuator of the switch control terminal. The switch machine 10 is used to switch the locking of switch points or point rails and indicates the position and condition of the switch points or point rails within the supervision interlock area. The switch machine 10 is often placed outdoors and can be connected to a track.
The electric switch machine 10 and the electro-hydraulic switch machine 10 can be divided according to the action energy and the transmission mode. The electric switch machine 10 is powered by an electric motor and adopts a mechanical transmission mode. Switches 10 of ZD6 series, S700K, ZD9, ZDJ9 are all electric switches 10. The electro-hydraulic switch machine 10 is powered by an electric motor and adopts a hydraulic transmission mode, which is called as an electro-hydraulic switch machine 10 for short. The type ZYJ7 switch machine 10 belongs to an electro-hydraulic switch machine 10.
The switch is divided into a direct current switch and an alternating current switch according to the power supply. The DC switch machine adopts a DC motor. The ZD6 series electric switch machine with more used existing lines is a DC switch machine. The AC switch machine adopts three-phase AC power supply, and the motor is a three-phase asynchronous motor. The S700K and ZDJ9 electric switch machines which are used by speed-up switches, high-speed railways and passenger special lines are all AC switch machines. The alternating current motor is not provided with a commutator and an electric brush, the failure rate is low, and the control distance of the single-core cable is long.
Taking the model ZDJ9 electric switch machine as an example, the system may be different when adapting to different systems, for example, 5 systems when connecting training terminals and 6 systems when switching to transition system equipment.
The switch machine 10 may have a plurality of first connection lines 11 and at least one second connection line 12, the second connection line 12 may be a single connection line or a plurality of connection lines, the first connection line 11 and the second connection line 12 are both used for connecting a control terminal, and the control terminal can transmit a control signal to the switch machine 10 through the first connection line 11 and/or the second connection line 12, so as to control the switch machine 10 to perform a switching operation.
The first terminal 20 has a plurality of third connection lines 21.
The first terminal 20 may be an existing control terminal, for example a training terminal, and the third connection line 21 is used to transmit control signals to the switch machine 10.
The second terminal 30 has a plurality of fourth connection lines 31 and at least one fifth connection line 32, the fifth connection line 32 may be a single connection line or a plurality of connection lines, the second terminal 30 may be a newly added control terminal, for example, a transition terminal, and both the fourth connection line 31 and the fourth connection line 31 are used for transmitting control signals to the switch machine 10.
The reverse switching console 40 is provided with a first switch 41, and when the first switch 41 is set to be in the first gear, the plurality of first connecting lines 11 and the plurality of third connecting lines 21 are electrically connected in a one-to-one correspondence manner.
That is, the reverse switch table 40 may be placed indoors, and the operator may control the switch machine 10 outdoors, and the reverse switch table 40 may be provided with the first changeover switch 41, so that the user can operate the first changeover switch 41.
The first switch 41 may have a first gear and a second gear, the switch 10 being electrically connected to the first terminal 20 when the first switch 41 is switched to the first gear, and the switch 10 being electrically connected to the second terminal 30 when the first switch 41 is switched to the second gear.
When the first switch 41 is switched to the first gear, the first connecting lines 11 and the third connecting lines 21 of the switch machine 10 are electrically connected in a one-to-one correspondence, for example, if the first terminal 20 has 5 first connecting lines 11, 5 first connecting lines 11 of the switch machine 10 are connected in a one-to-one correspondence with 5 third connecting lines 21 of the first terminal 20.
When the first switch 41 is set to be in the second gear, the plurality of first connecting lines 11 and the plurality of fourth connecting lines 31 are electrically connected in a one-to-one correspondence manner, and the at least one second connecting line 12 and the at least one fifth connecting line 32 are electrically connected in a one-to-one correspondence manner.
When the first switch 41 is switched to the second gear, the second connecting lines 12 and the fourth connecting lines 31 of the switch machine 10 are electrically connected in a one-to-one correspondence, and at the same time, the second connecting lines 12 and the fifth connecting lines 32 are electrically connected in a one-to-one correspondence, for example, if the second terminal 30 has 5 fourth connecting lines 31, 5 first connecting lines 11 of the switch line are electrically connected in a one-to-one correspondence with 5 fourth connecting lines 31 of the second terminal 30, and if the second terminal 30 has 1 fifth connecting line 32, 1 of the second connecting lines 12 of the switch line is electrically connected in a one-to-one correspondence with the fifth connecting line 32.
With the gradual formation of subway line networks in various places, newly-built subway projects become less gradually, subway lines in various places gradually reach the service life, and the occupation ratio of subway transformation projects is increased day by day.
Considering that the project period of the control terminal reconstruction of the switch machine 10 is short, all field activities can be carried out only at night, the operation time is limited, and the requirement of safety protection measures is high. Based on the principle that installation and test work cannot affect normal operation of existing lines, field activities are considered to be carried out after night operation is finished. Before the test starts, switching between a new control terminal and an existing control terminal needs to be completed, and after the test is finished, the new control terminal and the existing control terminal are switched again to restore the daytime operation state.
The switch line back-off system can rapidly switch the control terminal indoors, avoids the influence of the transformation test on the operation of the existing control terminal in the daytime, can reasonably utilize the very limited night test time, and can strive for more effective test time as far as possible.
According to the switch wire reverse switching system provided by the embodiment of the invention, the switch machine 10 can be connected with the control terminals of different wire systems by switching the first gear and the second gear on the first selector switch 41, so that the quick switching of different wire systems can be realized through the first selector switch 41, the operation difficulty is reduced, and the adjustment efficiency of the control terminals is improved.
As shown in fig. 1 and 2, in some embodiments, the switch machine back-cut system further includes: a second switch.
The second connection line 12 is connected to the inside of the switch machine 10 through a second switch, and the second switch is used for controlling connection and disconnection of the second connection line 12.
It will be appreciated that for the switch machine 10, the first connecting line 11 is always unchanged when switching between different control terminals, and the second connecting line 12 may be in a connected state or an empty state, for example, for a 6-wire control terminal, there is only one separate connecting line which is connected to the second connecting line 12 and is more than the 5-wire control terminal.
If the first switch 41 is in the first position, the second connection line 12 is not connected to the control terminal, and is in the idle state, since the second connection line 12 extends from the outdoor to the indoor for connection with the indoor control terminal during the actual wiring design, and the second connection line 12 tends to transmit a strong electric power with a higher voltage, if the second connection line 12 is in the idle state, a larger voltage difference is easily generated at the indoor handswitch console 40.
Here, the second switch is designed, the second connection line 12 is connected with the internal circuit of the switch machine 10 through the second switch, so that the on-off of the second connection line 12 can be controlled through the second switch, and the second connection line 12 can be directly disconnected outdoors when the second connection line 12 is vacant, thereby preventing the second connection line 12 from leading higher voltage into the back-cut operation table 40 which is pinched, preventing the back-cut operation table 40 from generating larger voltage difference, and preventing electric leakage or electric shock accidents.
As shown in fig. 1 and 2, in some embodiments, the second switch is a relay 42.
For example, the second switch may be an electromagnetic relay 42 to control strong current by weak current, so as to ensure that the voltage at the second switch is small and avoid electric shock.
As shown in fig. 1 and fig. 2, in some embodiments, the control end 46 of the relay 42 may be disposed on the reverse switch operating platform 40, and the controlled end may be close to the switch machine 10, so that the second switch can be controlled on the indoor reverse switch operating platform 40 to control the on/off of the second connection line 12, so that a user can control the on/off of the outdoor second connection line 12 indoors, and the convenience of operation is improved.
As shown in fig. 1 and 2, in some embodiments, the second connection line 12 includes: a first section 13 and a second section 14.
One end of the first section 13 is connected to the inside of the switch machine 10, and the other end of the first section 13 is electrically connected to the movable contact 43 of the relay 42.
That is, the first section 13 of the second connection line 12 is connected at one end to the internal circuit of the switch machine 10 and at the other end to the movable contact 43 of the relay 42, the movable contact 43 being the contact of the relay 42 performing the mechanical movement.
One end of the second segment 14 is electrically connected to the fifth connection line 32 when the first selector switch 41 is in the second position, and the other end of the second segment 14 is electrically connected to the first stationary contact 44 of the relay 42.
The second stage 14 is connected to the indoor reverse-cutting operation table 40, and when the first switch 41 is in the second position, one end of the second stage 14 is electrically connected to the fifth connection line 32, and the other end of the second stage 14 is electrically connected to the first stationary contact 44 of the relay 42.
If the relay 42 is of a single-pole single-throw type, the movable contact 43 can be in contact with or separated from the first fixed contact 44, when the movable contact 43 is in contact with the first fixed contact 44, the first section 13 and the second section 14 of the second connection line 12 are communicated, when the movable contact 43 is separated from the first fixed contact 44, the first section 13 and the second section 14 of the second connection line 12 are disconnected, and a user can control the control end 46 of the relay 42 to control the stroke of the movable contact 43 to determine whether to be in contact with the first fixed contact 44, so that on-off control of the second connection line 12 is realized.
As shown in fig. 1 and 2, in some embodiments, the switch machine 10 further has a sixth connection line 15 corresponding to the at least one second connection line 12, one end of the sixth connection line 15 is connected to the inside of the switch machine 10, and the other end of the sixth connection line 15 is electrically connected to the second stationary contact 45 of the relay 42.
It will be understood that the number of the sixth connection lines 15 is equal to the number of the second connection lines 12, the sixth connection lines 15 also being incorporated inside the switch machine 10, the sixth connection lines 15 being used to incorporate a rectifying device in conjunction with temporary engineering control circuits.
The relay 42 may be of a single-pole double-throw type, so that the movable contact 43 may contact with the first fixed contact 44 or the second fixed contact 45, when the movable contact 43 contacts with the second fixed contact 45, the first section 13 of the second connection line 12 is electrically connected with the sixth connection line 15, at this time, the first section 13 and the second section 14 of the second connection line 12 are disconnected, and the sixth connection line 15 can conduct the current on the second connection line 12 back to the inside of the switch machine 10, thereby further avoiding the voltage difference formed at the disconnected part of the second connection line 12, and further avoiding the risks of electric leakage and electric shock.
As shown in fig. 1 and 2, in some embodiments, the switch machine back-cut system further includes: a rectification box 50.
The sixth connection line 15 is electrically connected to the second stationary contact 45 of the relay 42 via the rectifier box 50. The rectifier box 50 can be used by matching a self-reset rectifier element and a voltage-controlled element, can change an alternating voltage into a direct voltage to supply power to a coil of the relay 42, can pull down and clamp a reverse high-voltage pulse surge applied to the rectifier element by using a high-sensitivity surge suppressor, and can protect the rectifier element from being broken down by the reverse high voltage.
Through setting up rectifier box 50, can make the electric current on the sixth connecting wire 15 can be relatively stable, reduce the risk of electric leakage and electric shock.
As shown in fig. 1 and 2, in some embodiments, the switch machine back-cut system further includes: a first indicator light 60.
The first indicator light 60 is provided on the reverse cutting operation table 40, and the first indicator light 60 is electrically connected to the second stationary contact 45.
It is understood that the first indicator light 60 is provided on the reverse cutting operating board 40, the first indicator light 60 is electrically connected to the second stationary contact 45, the first section 13 of the second connecting line 12 and the sixth connecting line 15 are communicated when the movable contact 43 is in contact with the second stationary contact 45, the first indicator light 60 may be extinguished, and the first section 13 and the second section 14 of the second connecting line 12 are communicated when the movable contact 43 is in contact with the first stationary contact 44, the first indicator light 60 is lit.
Of course, the first indicator light 60 may be illuminated with different colors to indicate the position of the movable contact 43 of the relay 42, such as the first indicator light 60 emitting a blue light when the movable contact 43 contacts the first stationary contact 44 and the first indicator light 60 emitting a red light when the movable contact 43 contacts the second stationary contact 45.
The first indicator lamp 60 can display the on-off condition of the first connecting line 11, so that a user can timely obtain a feedback result when operating the control end 46 of the relay 42 on the inverted operation table 40, can judge whether the relay 42 breaks down, and can conveniently and timely perform fault maintenance treatment.
As shown in fig. 1 and 2, in some embodiments, the switch machine back-cut system further includes: and a second indicator light.
The second indicator light is arranged on the reverse switching operation table 40, electrically connected with the first switch 41, and used for indicating the gear state of the first switch 41.
It can be understood that the reverse switch console 40 is further provided with a second indicator light, the second indicator light can display the gear state of the first switch 41, and the second indicator light can use a light emitting color to indicate the gear state of the first switch 41, for example, when the first switch 41 is in the first gear, the second indicator light emits white light, and when the first switch 41 is in the second gear, the second indicator light emits yellow light, so that the user can know the gear state of the first switch 41 in time, and can determine which control terminal the switch 10 is connected to.
As shown in fig. 1, 2, in some embodiments, the second indicator light includes: a first gear indicator lamp 61 and a second gear indicator lamp 62.
The first switch 41 is set to turn on the first shift indicator 61 when in the first shift position, and to turn on the second shift indicator 62 when in the second shift position.
It can be understood that, the second indicator light may have a first gear indicator light 61 and a second gear indicator light 62, which respectively and correspondingly indicate that the first switch 41 is in the first gear and the second gear, when the first gear indicator light 61 is turned on, the second gear indicator light 62 is turned off, which indicates that the first switch 41 is in the first gear, when the second gear indicator light 62 is turned on, the first gear indicator light 61 is turned off, which indicates that the first switch 41 is in the second gear, the first gear indicator light 61 may be close to the first gear, and the second gear indicator light 62 may be close to the second gear, so that the user can more intuitively determine the gear state of the first switch 41.
As shown in fig. 3, the switch machine reversing system according to the embodiment of the present invention has been implemented through engineering wiring, and by using this wiring, the fast switching operation of the switch machine 10 and various control terminals can be realized.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A switch machine back-cutting system, comprising:
a switch machine having a plurality of first connection lines and at least one second connection line;
a first terminal having a plurality of third connection lines;
a second terminal having a plurality of fourth connection lines and at least one fifth connection line;
the reverse switching operation platform is provided with a first change-over switch, and when the first change-over switch is set to be in a first gear, the plurality of first connecting wires and the plurality of third connecting wires are electrically connected in a one-to-one correspondence manner; when the gear is at a second gear, the first connecting lines are electrically connected with the fourth connecting lines in a one-to-one correspondence mode, and the second connecting lines are electrically connected with the fifth connecting lines in a one-to-one correspondence mode.
2. A switch machine back-cutting system as recited in claim 1, further comprising: the second connecting line is connected into the inside of the switch machine through the second change-over switch, and the second change-over switch is used for controlling connection and disconnection of the second connecting line.
3. A switch machine back-off system as claimed in claim 2, wherein said second diverter switch is a relay.
4. A switch machine back-cut system as claimed in claim 3, wherein said second connecting line comprises:
one end of the first section is connected into the inside of the switch machine, and the other end of the first section is electrically connected with a movable contact of the relay;
and one end of the second section is electrically connected with the fifth connecting wire when the first switching switch is in the second gear, and the other end of the second section is electrically connected with the first static contact of the relay.
5. The switch back-off system as claimed in claim 4, wherein said switch further has a sixth connecting wire corresponding to said at least one second connecting wire, one end of said sixth connecting wire is connected to the inside of said switch, and the other end of said sixth connecting wire is electrically connected to the second stationary contact of said relay.
6. The switch machine back-cut system of claim 5, further comprising:
and the sixth connecting wire is electrically connected with the second stationary contact of the relay through the rectifying box.
7. The switch machine back-cut system of claim 5, further comprising:
the first indicator light is arranged on the inverted cutting operation table, and the first indicator light is electrically connected with the second stationary contact.
8. A switch machine back-cut system as claimed in any one of claims 3-7, characterized in that the control end of the relay is provided at the back-cut station.
9. A switch machine back-cut system as claimed in any one of claims 1-7, further comprising:
the second indicator light is arranged on the reverse switching operation table, the second indicator light is electrically connected with the first change-over switch, and the second indicator light is used for indicating the gear state of the first change-over switch.
10. A switch machine back-cut system as recited in claim 9, wherein said second indicator light comprises: the first gear indicator lamp and the second gear indicator lamp are arranged, the first switch is set to be in the first gear and started, and the second gear indicator lamp is started when the second gear is arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011280698.9A CN112339793B (en) | 2020-11-16 | 2020-11-16 | Reverse cutting system of point switch |
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|---|---|---|---|
| CN202011280698.9A CN112339793B (en) | 2020-11-16 | 2020-11-16 | Reverse cutting system of point switch |
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| CN112339793A true CN112339793A (en) | 2021-02-09 |
| CN112339793B CN112339793B (en) | 2023-03-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113942541A (en) * | 2021-12-21 | 2022-01-18 | 中铁十四局集团电气化工程有限公司 | Portable turnout operation device and turnout operation method |
| CN114802347A (en) * | 2022-06-28 | 2022-07-29 | 卡斯柯信号(北京)有限公司 | Switching circuit for point switch |
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| 文仁广: "北京地铁8号线信号系统不停运切换设计", 《铁路技术创新》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113942541A (en) * | 2021-12-21 | 2022-01-18 | 中铁十四局集团电气化工程有限公司 | Portable turnout operation device and turnout operation method |
| CN113942541B (en) * | 2021-12-21 | 2022-03-29 | 中铁十四局集团电气化工程有限公司 | Portable turnout operation device and turnout operation method |
| CN114802347A (en) * | 2022-06-28 | 2022-07-29 | 卡斯柯信号(北京)有限公司 | Switching circuit for point switch |
| CN114802347B (en) * | 2022-06-28 | 2022-10-21 | 卡斯柯信号(北京)有限公司 | Switching circuit for point switch |
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| CN112339793B (en) | 2023-03-21 |
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