CN111077385A - Railway signal interlocking test simulation disc - Google Patents

Railway signal interlocking test simulation disc Download PDF

Info

Publication number
CN111077385A
CN111077385A CN201911147353.3A CN201911147353A CN111077385A CN 111077385 A CN111077385 A CN 111077385A CN 201911147353 A CN201911147353 A CN 201911147353A CN 111077385 A CN111077385 A CN 111077385A
Authority
CN
China
Prior art keywords
aluminum alloy
disc
alloy section
signboard
model
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
Application number
CN201911147353.3A
Other languages
Chinese (zh)
Other versions
CN111077385B (en
Inventor
杨帆
杨阿龙
刘凯旋
郭小波
张旭柏
张璞杰
刘一丁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Construction Electrification Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway Construction Electrification Bureau Group Co Ltd
Original Assignee
China Railway Construction Electrification Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway Construction Electrification Bureau Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Railway Construction Electrification Bureau Group Co Ltd, Second Engineering Co Ltd of China Railway Construction Electrification Bureau Group Co Ltd filed Critical China Railway Construction Electrification Bureau Group Co Ltd
Priority to CN201911147353.3A priority Critical patent/CN111077385B/en
Publication of CN111077385A publication Critical patent/CN111077385A/en
Application granted granted Critical
Publication of CN111077385B publication Critical patent/CN111077385B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0416Connectors, terminals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/16Measuring asymmetry of polyphase networks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

The invention belongs to the technical field of railway signal interlocking tests and discloses a railway signal interlocking test simulation disc which comprises a track model, a signal machine model, a plug-in PCB (printed circuit board) wiring terminal, a miniature guide rail and a simulation disc support, wherein the simulation disc support is arranged on the ground and comprises a disc surface, two first support legs and two second support legs; the disc surface comprises a plurality of aluminum alloy section bars, the cross sections of the aluminum alloy section bars are square, the centers of two non-opposite side surfaces of the aluminum alloy section bars are respectively provided with a wire groove along the bar direction, and the track model is fixedly arranged above the disc surface through flange screws in the wire grooves arranged in the upper surfaces of the aluminum alloy section bars; the bottom of the plug-in PCB wiring terminal is provided with a buckling part which is clamped on the miniature guide rail through the buckling part, and the miniature guide rail is fixedly arranged on the side surface of the aluminum alloy profile rod. The invention has simple structure, convenient installation and visual display, and can be widely applied to the railway field.

Description

Railway signal interlocking test simulation disc
Technical Field
The invention belongs to the technical field of railway signal interlocking tests, and particularly relates to a railway signal interlocking test simulation disc which is formed by combining electrical elements and can simulate three major parts outside a signal chamber.
Background
Before the railway signal system is put into operation, a construction unit and an equipment management unit can carry out system tests on signal engineering of each station and the jurisdiction region thereof so as to improve the reliability of field equipment in the operation process, and the objective correctness of software of the simulation test can be verified by interlocking computers widely used at present. In the prior construction process, a simulation disc is usually made of materials such as PVC (polyvinyl chloride) plates and acrylic plates, station shapes are drawn on plates by lines, elements such as bulbs are fixed on the simulation disc in a drilling mode, the types are rough and simple, the actual conditions on site cannot be visually reflected, and the simulation disc is required to be made during the test of each station or relay station, so that the material waste is caused. Therefore, a railway signal interlocking test simulation disc needs to be provided to perform a simulation test on a railway signal.
Disclosure of Invention
The invention overcomes the defects of the prior art, and solves the technical problems that: the railway signal interlocking test simulation disc is simple in structure and convenient to install, and visual simulation experiments of railway signals are achieved.
In order to solve the technical problems, the invention adopts the technical scheme that: a railway signal interlocking test simulation disc comprises a track model, a semaphore model, a pluggable PCB (printed circuit board) wiring terminal, a miniature guide rail and a simulation disc support, wherein the simulation disc support is arranged on the ground and comprises a disc surface, two first support legs and two second support legs, the two first support legs and the two second support legs are arranged at the bottom of the disc surface, and the height of the first support legs is lower than that of the second support legs; the disc surface comprises a plurality of aluminum alloy section bars, wherein four aluminum alloy section bars are connected to form a square outer frame, other aluminum alloy section bars are arranged in the square outer frame in parallel, the cross section of each aluminum alloy section bar is square, the centers of two sides which are not opposite to each other are provided with wire grooves along the bar direction, and the track model is fixedly arranged above the disc surface through flange screws in the wire grooves in the upper surfaces of the aluminum alloy section bars; the bottom of the plug-in PCB wiring terminal is provided with a buckling part which is clamped on the miniature guide rail through the buckling part, and the miniature guide rail is fixedly arranged on the side surface of the aluminum alloy profile rod through a flange screw arranged in a wire groove on the side surface of the aluminum alloy profile rod; the annunciator model is clamped in a clamping groove of the plug-in PCB wiring terminal, and 3 fixing clamping grooves for fixing the test bulb are arranged on the annunciator model.
The miniature guide rail is a miniature terminal cold-rolled steel guide rail clamping strip with the model of MBK.
The railway signal interlocking test simulation disc further comprises a button switch, and the button switch is fixedly arranged on the plug-in PCB wiring terminal.
The type of the toggle switch is E-TEN 1021.
The aluminum alloy section bars are connected through L-shaped connecting sheets and flange screws to form a disc surface, and the first supporting leg and the second supporting leg are connected with the disc surface through the L-shaped connecting sheets and the flange screws.
The rail model comprises a straight rail model, a bent rail model and a forked rail model.
A railway signal interlocking test simulation dish, still include track signboard, switch signboard, semaphore signboard, go to signboard and station name signboard, station name signboard sets up in the quotation top, track signboard, switch signboard and semaphore signboard set up correspond position department on the track model.
Compared with the prior art, the invention has the following beneficial effects: the invention provides a railway signal interlocking test simulation disc, which is characterized in that a simulation model and a circuit are arranged on a simulation disc bracket formed by an aluminum alloy section bar, the track model section bar is light in weight and easy to assemble, and the layout of a station yard can be clearly, vividly and truly embodied. Can be widely applied to railway signal linkage tests.
Drawings
Fig. 1 is a schematic view of a disc surface structure of a railway signal interlocking test simulation disc provided by an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a simulation tray holder according to an embodiment of the present invention;
FIG. 3 is a schematic view of the installation structure of the micro guide rail and the track model on the aluminum alloy section bar in the embodiment of the invention;
FIG. 4 is a schematic structural diagram of a semaphore model in an embodiment of the invention;
FIG. 5 is a schematic structural view of an aluminum alloy profile bar according to an embodiment of the present invention; .
In the figure: the track model is 1, 2 is the semaphore model, 4 is plug-in PCB binding post, 5 is miniature guide rail, 6 is the simulation dish support, 7 is the quotation, 8 is straight type track model, 9 is curved type track model, 10 is fork type track model, 11 is the wire casing, 12 is the buckle part, 19 is the station name signboard, 28 is first landing leg, 29 is the second landing leg, 30 is the aluminum alloy section bar, 31 is L type connection piece, 32 is the flange screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments; 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.
As shown in fig. 1 to 4, an embodiment of the invention provides a railway signal interlocking test simulation panel, which comprises a track model 1, a signal machine model 2, a plug-in type PCB terminal 4, a micro-guide rail 5 and a simulation panel support 6, wherein the simulation panel support 6 is arranged on the ground and comprises a panel surface 7, and two first support legs 28 and two second support legs 29 which are arranged at the bottom of the panel surface 7, the first support legs 28 are lower than the second support legs 29, and the obliquely arranged panel surface can facilitate observation of railway signals during a simulation test; the disk surface 7 comprises a plurality of aluminum alloy section bars 30, wherein four aluminum alloy section bars 30 are connected to form a square outer frame, other aluminum alloy section bars 30 are arranged in the square outer frame in parallel, the cross section of each aluminum alloy section bar 30 is square, the centers of two non-opposite side surfaces of each aluminum alloy section bar are respectively provided with a wire groove 11 along the bar direction, and the track model 1 is fixedly arranged above the disk surface 7 through a flange screw 32 arranged in the wire groove 11 in the upper surface of each aluminum alloy section bar 30; the bottom of the plug-in PCB wiring terminal 4 is provided with a buckling part 12 which is clamped on the miniature guide rail 5 through the buckling part 12, and the miniature guide rail 5 is fixedly arranged on the side surface of the aluminum alloy section bar 10 through a flange screw 32 arranged in a wire groove 11 on the side surface of the aluminum alloy section bar 10; the annunciator model 2 is clamped in a clamping groove of the plug-in PCB wiring terminal 4, and 3 fixing clamping grooves 13 for fixing the test bulb are arranged on the annunciator model.
Specifically, in the embodiment of the present invention, the micro guide rail 5 is a micro terminal cold-rolled steel guide rail clamping strip with the model number of MBK.
Specifically, the railway signal interlocking test simulation disc provided by the embodiment of the invention further comprises a toggle switch, and the toggle switch is fixedly arranged on the plug-in PCB wiring terminal 4. Specifically, the button switch is E-TEN1021, and the bottom of the button switch is arranged on the plug-in PCB wiring terminal 4.
Specifically, as shown in fig. 1, in the embodiment of the present invention, the aluminum alloy section bars 30 are connected to form the plate surface 7 through the L-shaped connecting pieces 31 and the flange screws, it should be noted that, for simplicity, only one set of L-shaped connecting pieces 31 is shown in the figure, but actually, in order to connect and form the plate surface 7, the L-shaped connecting pieces are required to be disposed at the connecting positions between all the aluminum alloy section bars 30. In addition, in the embodiment of the present invention, the first leg 28 and the second leg 29 are connected to the disk 7 by an L-shaped connecting piece and a flange screw.
Specifically, as shown in fig. 1, the track model 1 includes a straight track model 8, a bent track model 9, and a turnout track model 10. Specifically, in order to adapt to different railway test requirements, the straight track model 8, the bent track model 9 and the forked track model 10 can be connected to form the track model 1 which is the same as the actual situation according to requirements, and then the straight track model, the bent track model and the forked track model are fixedly arranged on the disc surface 7 through flange screws 32.
Specifically, the railway signal interlocking test simulation dish that this embodiment provided still includes track signboard, switch signboard, semaphore signboard, to signboard and station name signboard 19, station name signboard 19 sets up in the quotation top, track signboard, switch signboard and semaphore signboard set up correspond position department on the track model.
Before the simulation experiment is carried out, the building size of the simulation disc is reasonably planned according to the layout of the station yard, and the specific implementation mode is described according to the building size of the simulation disc 1m by 2 m. Firstly, aluminum alloy rods (each 0.5 m) are connected together through connecting sheets to respectively form 2 straight rods of 0.5 m, 4 straight rods of 1m and 7 straight rods of 2 m. Wherein 2 straight rods of 0.5 and 2 straight rods of 1m are respectively made into a first supporting leg 28 and a second supporting leg 29, the rest 2 straight rods of 1m and 7 straight rods of 2m form a disk surface through flange screws and L-shaped connecting sheets, and then the supporting legs are connected with the disk surface through the flange screws and the L-shaped connecting sheets to jointly form the simulation disk support 6.
And secondly, reasonably combining the straight track model 8, the bent track model 9 and the turnout track model 10 according to the actual track division condition, and splicing. The assembled track model is connected with an aluminum alloy rod on the disk surface 7 by a flange screw 5.
And thirdly, according to the installation positions of 'three major parts' of the actual station, clamping the plug-in PCB wiring terminal 4 on the miniature guide rail 5 (internally provided with a screw hole), and then fixing the miniature guide rail 5 on the side surface of the aluminum alloy rod by using a flange screw. And the annunciator module 1 and the button switch are clamped on the plug-in PCB wiring terminal 4, and circuits including test bulbs, LEDs and the like, circuit power supplies and the like are connected.
And finally, fixing the rail signboard, the turnout signboard, the signal machine signboard, the destination signboard and the station name signboard 19 at the corresponding positions of the disc surface.
The computer interlocking and train running control system is the basis for ensuring running safety, train service running control, route selection and the like, and is an important control system. The important components of the two systems are the signal machine, the turnout and the track circuit, and the train can only run safely if the three systems work normally. The simulation panel checks whether the indoor circuit is correct or not mainly through simulation experiments on three important components of the two systems.
And (3) signal machine simulation:
the wire leading from the combined terminal of the distributing panel signal machine to the wiring hole of the module of the analog panel signal machine.
Formal electricity is sent to the combined equipment and voltage is adjusted, and by arranging various access circuits and the conditions that the interval is occupied by a front section and the like, the suction and landing logic of the filament relay is formed, the electricity is sent to the simulation panel, a small bulb of a signal machine is used as a load, and finally different lamp position display is controlled.
Turnout simulation:
the wire is led to the wiring hole of the analog switch module from the corresponding lead of the switch combination terminal of the junction board.
The turnout power supply is ABC three-phase alternating current, and is powered to the turnout module through an indoor relay node and a power-on circuit. The switch module comprises two parts of a display circuit and a phase failure inspection, wherein the switch display circuit adopts diode one-way conductivity, and the switch display circuit is used for displaying switch positioning and reverse position by driving a positioning and reverse position operation relay in an interlocking way, starting action and starting a rotating pole. The phase loss check is performed by three bulbs to form a three phase combination representing ABC. The whole constitutes the whole analog circuit.
Track circuit simulation:
corresponding leads (FSH end, JSH end, FS end and JS end of each section) of the zero-level terminal of the section integrated cabinet are connected to the wiring holes of the analog disk track module.
The good on-off performance of the toggle switch is applied to change the occupied or idle state of the track. When the switch is disconnected, namely the track circuit is idle, the current passes through the network simulation disk and the track relay, so that the track relay is sucked up, the front contact is closed, and the signal is open. When the switch is closed, namely the track circuit is occupied, current passes through the switch, so that the track relay falls down. The rear contact is closed and the signal is off.
Note: 1 conventional reference wire is sheathed multi-strand flame retardant wire. Single strand type: 23 x 0.15mm2
2, the length of the stripping wire is not suitable to be too long when wiring is connected, so as to prevent short circuit.
3, the wires need to be uniformly calibrated after all the leads are finished.
The simulation panel has the function of a miniature image of the outdoor scene, and can be set by the simulation principle of the three important components, the simulation panel can reflect the simulation states of an outdoor signal machine, a track circuit and a turnout, and indoor equipment can be connected with outdoor simulation conditions by setting a channel simulation cable channel.
The embodiment of the invention provides a railway signal interlocking test simulation disc, which is characterized in that a simulation model and a circuit are arranged on a simulation disc bracket formed by an aluminum alloy section bar, the track model section bar is light in weight and easy to assemble, and the layout of a station yard can be clearly, clearly and truly embodied. Wherein, the semaphore model uses new science and technology 3D printing technique, can print multiple type semaphores such as three demonstration, five demonstration as required. The E-TEN1021 button switch supports a 15A/250VAC power supply, has good on-off performance and is suitable for simulating a track occupation or idle state. The 380V bulb has the advantages of safety, small size, strong brightness and the like, and can reflect the phase failure of a turnout power supply and the simulated lighting state of a signal machine. The switch analog representation is realized by using the unidirectional conductivity of the diode. The plug-in PCB wiring terminal is firm in wiring, has good insulativity between wire ports and is used for connecting indoor equipment and a module. The MBK-T (micro rail) is used for fixing the PCB wiring terminal. The aluminum alloy support is light and convenient, is easy to assemble and disassemble, and can form any structure according to the requirement. The station signboard is used for displaying the station name. Therefore, the invention has the advantages of convenient installation and disassembly, recycling and repeated use, is suitable for simulating station models in various conditions such as station, section and the like in a signal test, and can be freely arranged according to actual conditions in the field.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. A railway signal interlocking test simulation disc is characterized by comprising a track model (1), a signal machine model (2), a plug-in PCB wiring terminal (4), a miniature guide rail (5) and a simulation disc support (6), wherein the simulation disc support (6) is arranged on the ground and comprises a disc surface (7), two first support legs (28) and two second support legs (29) which are arranged at the bottom of the disc surface (7), and the height of the first support legs (28) is lower than that of the second support legs (29); the track model is characterized in that the disk surface (7) comprises a plurality of aluminum alloy section bars (30), wherein four aluminum alloy section bars (30) are connected to form a square outer frame, other aluminum alloy section bars (30) are arranged in the square outer frame in parallel, the cross section of each aluminum alloy section bar (30) is square, the centers of two sides of each aluminum alloy section bar (30) which are not opposite to each other are provided with wire grooves (11) along the bar direction, and the track model (1) is fixedly arranged above the disk surface (7) through flange screws arranged in the wire grooves in the upper surfaces of the aluminum alloy section bars (30); the bottom of the plug-in PCB wiring terminal (4) is provided with a buckling part (12) which is clamped on the miniature guide rail (5) through the buckling part (12), and the miniature guide rail (5) is fixedly arranged on the side surface of the aluminum alloy section bar (10) through a flange screw arranged in a wire slot on the side surface of the aluminum alloy section bar (10); the signaler model (2) is clamped in a clamping groove of the plug-in PCB wiring terminal (4), and 3 fixing clamping grooves (13) for fixing the test bulb are arranged on the signaler model.
2. The railway signal interlocking test simulation disc as claimed in claim 1, wherein the miniature guide rail (5) is a miniature terminal cold rolled steel guide rail clamping strip of type MBK.
3. The railway signal interlocking test simulation disc as claimed in claim 1, further comprising a button switch fixedly arranged on the plug-in PCB connection terminal (4).
4. The railway signal interlocking test simulation disc as claimed in claim 3, wherein the toggle switch is E-TEN 1021.
5. The railway signal interlocking test simulation disc as claimed in claim 1, wherein the aluminum alloy section bars (30) are connected through L-shaped connecting pieces and flange screws to form a disc surface (7), and the first supporting leg (28) and the second supporting leg (29) are connected with the disc surface (7) through the L-shaped connecting pieces and the flange screws.
6. A railway signal interlocking test simulation disc according to claim 1, wherein the track model (1) comprises a straight track model (8), a bent track model (9) and a turnout track model (10).
7. The railway signal interlocking test simulation disc as claimed in claim 1, further comprising a track signboard, a switch signboard, a signal machine signboard, a destination signboard and a station name signboard (19), wherein the station name signboard (19) is arranged above the disc surface, and the track signboard, the switch signboard and the signal machine signboard are arranged at corresponding positions on the track model (1).
CN201911147353.3A 2019-11-21 2019-11-21 Railway signal interlocking test simulation disc Active CN111077385B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911147353.3A CN111077385B (en) 2019-11-21 2019-11-21 Railway signal interlocking test simulation disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911147353.3A CN111077385B (en) 2019-11-21 2019-11-21 Railway signal interlocking test simulation disc

Publications (2)

Publication Number Publication Date
CN111077385A true CN111077385A (en) 2020-04-28
CN111077385B CN111077385B (en) 2024-08-06

Family

ID=70311474

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911147353.3A Active CN111077385B (en) 2019-11-21 2019-11-21 Railway signal interlocking test simulation disc

Country Status (1)

Country Link
CN (1) CN111077385B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070107620A1 (en) * 2004-12-30 2007-05-17 Wolfgang Wagner Method and a device for the rail traffic on multiply, parallel guide-ways also as toys
CN102495628A (en) * 2011-12-27 2012-06-13 中铁十局集团电务工程有限公司 Mimic board for signal equipment of station
CN102495627A (en) * 2011-12-27 2012-06-13 中铁十局集团电务工程有限公司 Section signal equipment simulation board
CN202512207U (en) * 2012-02-17 2012-10-31 中铁五局(集团)有限公司 Interlocking simulation test system of railway signaling
CN103743984A (en) * 2014-01-23 2014-04-23 中铁一局集团有限公司 Rail transit signal interlock test simulator
RU141628U1 (en) * 2013-07-29 2014-06-10 Открытое акционерное общество "Росжелдорпроект" TEMPORARY BLOCK-POST MODULE FOR CODE AUTO-LOCK SITES
CN108332982A (en) * 2018-04-11 2018-07-27 通号(长沙)轨道交通控制技术有限公司 A kind of Interval logic checks simulation test unit block and its application method
CN211955676U (en) * 2019-11-21 2020-11-17 中国铁建电气化局集团第二工程有限公司 Railway signal interlocking test simulation disc

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070107620A1 (en) * 2004-12-30 2007-05-17 Wolfgang Wagner Method and a device for the rail traffic on multiply, parallel guide-ways also as toys
CN102495628A (en) * 2011-12-27 2012-06-13 中铁十局集团电务工程有限公司 Mimic board for signal equipment of station
CN102495627A (en) * 2011-12-27 2012-06-13 中铁十局集团电务工程有限公司 Section signal equipment simulation board
CN202512207U (en) * 2012-02-17 2012-10-31 中铁五局(集团)有限公司 Interlocking simulation test system of railway signaling
RU141628U1 (en) * 2013-07-29 2014-06-10 Открытое акционерное общество "Росжелдорпроект" TEMPORARY BLOCK-POST MODULE FOR CODE AUTO-LOCK SITES
CN103743984A (en) * 2014-01-23 2014-04-23 中铁一局集团有限公司 Rail transit signal interlock test simulator
CN108332982A (en) * 2018-04-11 2018-07-27 通号(长沙)轨道交通控制技术有限公司 A kind of Interval logic checks simulation test unit block and its application method
CN211955676U (en) * 2019-11-21 2020-11-17 中国铁建电气化局集团第二工程有限公司 Railway signal interlocking test simulation disc

Also Published As

Publication number Publication date
CN111077385B (en) 2024-08-06

Similar Documents

Publication Publication Date Title
CN201159943Y (en) Road traffic signal controller
CN211955676U (en) Railway signal interlocking test simulation disc
CN108806383A (en) Distribution training frame and distribution Training Methodology
CN209100786U (en) A kind of rail traffic non-packed repairs suspension and support integration system of standing
CN201812416U (en) Power distribution training system for electricians
CN111077385A (en) Railway signal interlocking test simulation disc
CN103743984A (en) Rail transit signal interlock test simulator
CN211237268U (en) Low-voltage power distribution operation management training device
CN211294271U (en) Multifunctional automatic fire alarm practical training device
CN209859348U (en) Electrical control practical training device
CN202795797U (en) Practical training device of intelligent and automatic fire alarm system for buildings
CN102033538A (en) Novel hotel room distribution control system
CN205318797U (en) Ideological and political education publicity board
CN204102506U (en) The railroad of outdoor display
CN208722423U (en) A kind of teaching building engineering experimental exercising apparatus for checking
CN206773957U (en) Novel multimedia smart classroom
CN204272563U (en) Multifunctional open frame is used in a kind of experiment
CN207364731U (en) Assembling lamp strip system
CN202769439U (en) Luminous module unit
CN214154149U (en) Automatic electric quantity monitoring device based on Internet of things
CN203102730U (en) Wiring simulating device
CN103448601B (en) A kind of shadow car that flows
CN216450909U (en) Bypass quick plugging device for ring main unit
CN204143669U (en) A kind of car electrics practical traning platform frame
CN216623618U (en) Can change sign of instruction direction

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant