CN216833305U - Train loading station removes contact net bimodulus control system - Google Patents
Train loading station removes contact net bimodulus control system Download PDFInfo
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- CN216833305U CN216833305U CN202220351597.4U CN202220351597U CN216833305U CN 216833305 U CN216833305 U CN 216833305U CN 202220351597 U CN202220351597 U CN 202220351597U CN 216833305 U CN216833305 U CN 216833305U
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Abstract
The utility model discloses a train loading station mobile contact net dual-mode control system, which comprises a mobile contact net, a transmission shaft, a manual control gear, a driving gear, a driven gear, a sliding frame, a contact suspension, a steel wire rope, a lane changing shifting plate and a crosshead shoe shaft coupling; the driven gear is meshed with the driving gear; an Oldham coupling capable of separating the shaft body is arranged on the transmission shaft of the driving gear; the shaft body is of an inner sleeve and outer sleeve structure, the shaft body on the inner side is matched with the sleeve on the outer side through a key groove, and a movable gear is fixed on the shaft body on the inner side; the movable gear can move transversely along the inner sleeve and the outer sleeve along the inner shaft body; a lane-changing shifting plate is hinged between the Oldham coupling and a movable gear which transversely moves along with the shaft body; a manual control gear is fixed on the shaft sleeve outside the rotating direction of the movable gear; through set up auto-change over device at the portal frame top that removes the contact net, even the staff is on ground, also can carry out the switching operation fast.
Description
Technical Field
The utility model relates to a train contact net loading control technical field, concretely relates to train loading station removes contact net bimodulus control system.
Background
The mobile contact system is a common power supply network mode of an electrified railway, and the contact system is a special power transmission line which is erected along a railway line and supplies power to an electric locomotive. It is composed of contact suspension, supporting device, positioning device, supporting column and foundation.
The movable contact net is mainly supported by a portal frame; a contact suspension is arranged below a cross beam of the portal frame, and one side of the contact suspension can move through a slide way on the portal frame; when the two contact suspensions are in contact, the power supply line recovers the railway power supply, and one of the contact suspensions is powered off after moving outwards; the power supply line can also avoid the position of a corresponding hopper above the carriage, so that the power supply line is prevented from contacting with goods when the hopper discharges the materials; the electric shock danger easily caused by live loading is avoided, and the safe operation of equipment is prevented from being influenced;
the existing mobile contact system generally adopts an automatic control mode to operate, and when an emergency occurs on site, the operation needs to be changed into a manual mode; because the driving modes of the automatic control mode and the manual mode are inconsistent, the switching is difficult to carry out during the switching; this mode of operation also presents the following problems:
firstly, under this operation height, high altitude construction itself is a comparatively dangerous operation mode, and when needing urgent switching mode, must guarantee to make preparations under the staff's safety prerequisite before ascending a height, for example prepare some working tools that high altitude construction needs used, for example: safety ropes, safety helmets, climbing frames, etc.; the work efficiency is seriously influenced by the preparation before ascending and ascending;
and the top of the portal frame is very close to a power supply line of a contact network, so that potential safety hazards can be brought to personal safety of workers during operation, and electric shock is easy to occur.
The utility model has the following contents:
according to prior art's not enough, the utility model provides a train loading station removes contact net bimodulus control system, through this control system, even the staff is on ground, also can switch over the operation fast, improves the switching efficiency of automatic control mode and manual mode, reduces the danger that proruption situation brought for the staff.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
1. a train loading station mobile contact network dual-mode control system comprises a mobile contact network, a transmission shaft, a manual control gear, a driving gear, a driven gear, a sliding frame, a contact suspension, a steel wire rope, a lane changing shifting plate and a cross slide block coupling; the movable contact net comprises a portal frame, a contact suspension and a sliding frame; a sliding chute is arranged below the cross beam of the portal frame; a sliding frame is arranged on the outer side of a beam of the portal frame; a contact suspension is fixed at the bottom of the sliding frame; two ends in the sliding chute of the portal frame are respectively movably connected with a driven gear; the driven gears are driven by chains, the middle parts of the chains are fixed with the sliding frame, and the sliding frame is driven by the chains to horizontally reciprocate;
the driven gear is meshed with the driving gear; an Oldham coupling capable of separating the shaft body is arranged on the transmission shaft of the driving gear; the shaft body is of an inner sleeve and outer sleeve structure, the shaft body on the inner side is matched with the sleeve on the outer side through a key groove, and a movable gear is fixed on the shaft body on the inner side; the movable gear can move transversely along the inner sleeve and the outer sleeve along the inner shaft body; a lane-changing shifting plate is hinged between the Oldham coupling and a movable gear which transversely moves along with the shaft body; through holes are respectively formed above and below the plate body of the lane changing shifting plate, and steel wire ropes are arranged in the through holes in a penetrating manner; the steel wire rope is fixed with a hole position above the shifting plate; a manual control gear is fixed on the shaft sleeve outside the rotating direction of the movable gear; when the Oldham coupling is in a separated state, the manual control gear is meshed with the movable gear.
Preferably, the manual control gear includes: the first manual control gear, the second manual control gear and the third manual control gear are arranged on the rack; the first manual control gear is arranged on the outer side of the driving gear in the rotating direction; when the Oldham coupling is in a separated state, the first manual control gear is meshed with the driving gear; the second manual control gear is coaxial with the first manual control gear; and the third manual control gear is positioned below the second manual control gear and is driven by a chain.
Preferably, the Oldham coupling, the driving gear, the movable gear and the first manual control gear are arranged on the inner side of the switching box.
Preferably, the edges of the switching box, which are positioned at the two sides of the lane changing shifting plate, are fixed with brackets; the support is hinged with the lane changing shifting plate; the length of the upper part of the lane changing shifting plate positioned at the hinged position is greater than that of the lower part of the lane changing plate positioned at the hinged position.
Preferably, a first guide wheel is fixed at one end of the surface of the switching box; the guide wheel is arranged between two through holes of the steel wire rope penetrating through the lane changing shifting plate.
Preferably, a second guide wheel is arranged on the outer side of the switching box; the direction of the steel wire rope is changed to be vertical downwards along the second guide wheel; a third guide wheel is fixed at the bottom of the portal frame; and a rocker is fixed on the third guide wheel.
Preferably, the support legs of the portal frame are of a hollow structure; the second manual control gear and the third manual control gear are hidden in the hollow structure, and a gap is formed in the supporting leg corresponding to the position of the third manual control gear.
Preferably, the shaft body is connected with a driving end of the driving motor.
Preferably, a rocker inserting hole is formed in the middle of the third manual control gear.
Preferably, a bracket is arranged on one side of the mobile overhead line system along the direction of the power supply line; a support plate is fixed on one side of the support close to the power supply line, and a detection wire clamp and a discharge wire clamp are respectively fixed at the end of the support plate; one end of the discharge wire clamp is connected with a ground wire, and the other end of the ground wire is directly buried underground; the detection wire clamp is connected with the grounding system monitoring alarm.
Preferably, two ends of the opening of the detection wire clamp and the opening of the discharge wire clamp are respectively provided with a guide rod; one end of the guide rod is outwards expanded towards the two sides of the opening to form an included angle opening larger than the detection wire clamp.
The utility model provides a train loading station removes contact net bimodulus control system the beneficial effects of the utility model have following several:
1. through this control system, the staff is located the ground that is close to the portal frame landing leg and just can the direct operation switch mode, need not the staff and ascends a height, when avoiding ascending a height the danger that brings, provides switching efficiency.
2. The movable gear lane changing can be realized by rotating the third guide wheel during switching, and the lane changing and shifting plate has larger torque and is easy to switch.
3. This control system still has the ground connection that moves back the net and detects, through the discharge fastener, with the static ground connection in the power supply line, has avoided electrified loading to take place easily and electrocutes danger to and influence the safe operation of equipment.
4. The control system is provided with a detection wire clamp which is connected with a grounding system monitoring alarm instrument, the grounding system monitoring alarm instrument can display whether the power supply line is completely discharged after being disconnected from the network and grounded, and if static electricity exists, the grounding system monitoring alarm instrument can display and alarm.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic top structure diagram of the present invention.
Fig. 3 is the schematic view of the cross-sectional structure of the portal frame of the present invention.
Fig. 4 is the utility model discloses an inner structure sketch is demolishd to portal frame.
Fig. 5 is a schematic view of the connection relationship of the internal structure of the switching box of the present invention.
Fig. 6 is the schematic diagram of the direction-changing structure relationship of the steel wire rope of the present invention.
Fig. 7 is a schematic view of the lane-changing shifting plate structure of the present invention.
Fig. 8 is a schematic diagram of the ground connection relationship of the power supply line according to the present invention.
Fig. 9 is the schematic view of the connection relationship of the wire clamp of the present invention.
Fig. 10 is a schematic view of the external structure of the wire clamp of the present invention.
Fig. 11 is the schematic diagram of the internal structure of the wire clamp of the present invention.
Fig. 12 is a schematic diagram of the circuit connection relationship of the present invention.
In the figure, a mobile contact net 1, a portal frame 1-1, a sliding frame 1-2, a contact suspension 1-3, a switching box 2, a transmission shaft 3, a manual control gear 4, a first manual control gear 4-1, a second manual control gear 4-2, a third manual control gear 4-3, a driving gear 5, a driven gear 6, a movable gear 7, a steel wire rope 8, a lane changing and shifting plate 9, a cross slide coupling 10, a chain 11, a first guide wheel 12, a second guide wheel 13, a third guide wheel 14, a bracket 15, a driving motor 16, a universal ball 17, a support column 18, a support plate 19, a detection wire clamp 20, a discharge wire clamp 21, a grounding system monitoring alarm 22, a guide rod 23, an audible and visual alarm 24, a power supply wire 25, a pressing plate 26 and a coil spring 27.
The specific implementation mode is as follows:
as shown in fig. 1,2 and 4, a dual-mode switching device for a train mobile contact system 1 comprises a mobile contact system 1, a transmission shaft 3, a manual control gear 4, a driving gear 5, a driven gear 6, a sliding frame 1-2, a contact suspension 1-3, a steel wire rope 8, a lane changing shifting plate 9 and a cross slide coupling 10; the mobile contact network 1 comprises a portal frame 1-1, a contact suspension 1-3 and a sliding frame 1-2; a sliding chute is arranged below the cross beam of the portal frame 1-1; a sliding frame 1-2 is arranged on the outer side of the beam of the portal frame 1-1; a contact suspension 1-3 is fixed at the bottom of the sliding frame 1-2; two ends in a sliding chute of the portal frame 1-1 are respectively movably connected with a driven gear 6; the driven gears 6 are driven by a chain 11; in order to ensure that the driving gears are in the switching box 2, 2 driven gears 6 can be coaxially arranged, and the meshing positions of the driven gears are prolonged; in the switching box 2, the middle part of a chain 11 is fixed with a sliding frame 1-2, the sliding frame 1-2 is driven by the chain 11 to horizontally reciprocate, and two sides of the sliding frame 1-2 are provided with rollers; grooves are arranged on two sides of the cross beam of the portal frame 1-1 corresponding to the rollers, and the rollers move in the grooves; the part is a structural part of the existing mobile contact system 1, and the sliding frames 1-2 are matched with gear sets of the design part through chains 11 to achieve the integral linkage effect.
The specific connections are as follows: firstly, a driven gear 6 of a movable contact net 1 is meshed with a driving gear 5 of a design part; an Oldham coupling 10 capable of separating the shaft body is arranged on the transmission shaft 3 of the driving gear 5; the shaft body is of an inner sleeve and an outer sleeve, the shaft body on the inner side is matched with the sleeve on the outer side through a key groove, and a movable gear 7 is fixed on the shaft body on the inner side; the movable gear 7 can move transversely along the inner sleeve structure along with the shaft body on the inner side; a lane-changing shifting plate 9 is hinged between the Oldham coupling 10 and the movable gear 7 which transversely moves along with the shaft body; through holes are respectively arranged above and below the plate body of the lane changing shifting plate 9, and steel wire ropes 8 are arranged in the through holes in a penetrating manner; the steel wire rope 8 is fixed with a hole position above the shifting plate; a manual control gear 4 is fixed on the outer side of the rotating direction of the movable gear 7 in a shaft sleeve manner; when the Oldham coupling 10 is in a separated state, the manual control gear 4 is meshed with the movable gear 7, so that the switching function of a manual mode and automatic control is achieved; wherein the shaft body needs to be connected to the drive end of the drive motor 16 to provide an automatically controlled rotational force.
As shown in fig. 3-6, to change the gear direction and the initial operating position of the gear set, the following is implemented:
the manual control gear 4 includes: a first manual control gear 4-1, a second manual control gear 4-2 and a third manual control gear 4-3; the first manual control gear 4-1 is arranged on the outer side of the rotation direction of the driving gear 5; when the Oldham coupling 10 is in a separated state, the first manual control gear 4-1 is meshed with the driving gear 5; the second manual control gear 4-2 is coaxial with the first manual control gear 4-1; the third manual control gear 4-3 is positioned below the second manual control gear 4-2, is positioned in the same horizontal plane and is driven by the chain 11, and the third manual control gear 4-3 is positioned at the bottom of the portal frame 1-1 and can be positioned at a position which is convenient for a worker to operate and is approximately one meter two to one meter six away from the ground.
As shown in fig. 3-5, the oldham coupling 10, the driving gear 5, the movable gear 7 and the first manual control gear 4-1 are arranged inside the switching box 2, and the switching box 2 plays a role of protecting a gear set while supporting and rotating a shaft body and the lane changing dial plate 9; the edges of the switching box 2 at the two sides of the lane changing poking plate 9 are fixed with brackets 15; the support 15 is hinged with the lane-changing shifting plate 9; the length of the upper part of the lane changing shifting plate 9 positioned at the hinged position is greater than that of the lower part of the hinged position, and the lane changing shifting plate 9 can rotate towards two sides when being supported in such a way; when the track-changing shifting plate rotates, the track-changing shifting plate is driven by the steel wire rope 8, the length above the track-changing shifting plate 9 is large, and shifting is labor-saving when the torque is large; the bottom of lane changing shifting plate 9 is provided with a groove, and the groove can prevent the lane changing shifting plate from changing with the position relation of the shaft body when rotating, and the shaft body can be influenced.
As shown in fig. 4,6 and 7, in actual operation, because the friction between the wire rope 8 and the dial plate is large, a first guide wheel 12 is fixed at one end of the surface of the switching box 2; the guide wheel is arranged between two through holes of the steel wire rope 8 penetrating through the lane changing shifting plate 9; the steel wire ropes 8 are of an annular closed structure, and a plurality of groups of steel wire ropes 8 are wound at the positions of the third guide wheels 14, so that the steel wire ropes 8 are prevented from slipping during rotation; a second guide wheel 13 is also arranged on the outer side of the switching box 2; the direction of the steel wire rope 8 is changed to be vertical and downward along the second guide wheel 13, and the transmission direction of the steel wire rope 8 is changed; a third guide wheel 14 is fixed at the bottom of the portal frame 1-1; a rocker is fixed on the third guide wheel 14, and the third guide wheel 14 is a device operated by a worker and can be directly rotated. Secondly, the phenomenon that the track changing plate is easy to rub the side surface of the gear or the side surface of the Oldham coupling 10 after the gear is shifted exists in the track changing process, in order to avoid the phenomenon, universal balls 17 are fixed on two sides of the bottom plate surface of the track changing plate 9, and the friction coefficient is reduced through rolling friction of the balls.
As shown in fig. 1 and 6, the support legs of the portal frame 1-1 are hollow structures; the second manual control gear 4-2 and the third manual control gear 4-3 are hidden in the hollow structure and can play a role of protecting the chain 11; a gap is arranged on the supporting leg corresponding to the position of the third manual control gear 4-3, and the gap is a manual mode operation space reserved for the third manual control gear 4-3.
As shown in fig. 8-11, a discharging platform is arranged on one side of the moving contact net along the direction of the power supply line 25; the bottom of the discharging platform is provided with a support column 18; a support plate is fixed on one side of the support close to the power supply line 25, and a detection wire clamp 20 and a discharge wire clamp 21 are respectively fixed at the end heads of the support plate; the supporting plate and the power supply line 25 are vertical to each other, and the opening in the middle of the wire clamp and the power supply line 25 are in the same horizontal plane, so that the power supply line 25 cannot deviate or misplace when moving outwards; the structure of the detection wire clamp 20 is consistent with that of the discharge wire clamp 21; the detection wire clamp 20 and the discharge wire clamp 21 are in U-shaped structures; two ends of the U-shaped structure opening of the detection wire clamp 20 are respectively provided with a guide rod 23; one end of the guide rod 23 is outwards expanded towards the two sides of the opening to form an included angle opening larger than the detection wire clamp 20; the guide rod 23 is arranged because in practice, the 25 power supply lines have certain deviation from top to bottom, so that deviation is easy to occur, and the guide rod 23 can correct the 25 deviated power supply lines; the inner side of the opening of the U-shaped structure is movably connected with a relative pressure plate 26; a reset coil spring 27 is fixed at the hinged position of the pressure plate 26; one end of the inner side of the coil spring 27 is fixed with the shaft, one end of the outer side of the coil spring 27 is connected with the pressure plate 26, and the fixing mode of the coil spring 27 for providing elasticity is a common fixing technology; the position where the pressure plate 26 clamps the power supply line 25 is provided with a groove which is attached to the periphery of the power supply line 25 to increase the contact area.
As shown in fig. 8, 9, 10, 12, the opening directions of the detection clip 20 and the discharge clip 21 are directed toward the power supply line 25 side; one end of the discharge wire clamp 21 is connected with the ground wire, and the other end of the ground wire is directly buried underground; the detection wire clamp 20 is connected with a grounding system monitoring alarm 22; the grounding system monitoring alarm instrument 22 is also connected in series with an audible and visual alarm 24, so that the staff can acquire information quickly and further discharge faults according to the alarm information. The above-mentioned fixing methods are all welded or screwed by means of the common technical means of those skilled in the art, if they are not separately described.
The working process is as follows:
when the mobile contact net is withdrawn, the contact suspension drives the power supply line 25 to move outwards, and when the mobile contact net is moved to the maximum position, the power supply line 25 can be clamped into the detection wire clamp 20 and the discharge wire clamp 21 respectively; at this time, the static electricity in the power supply line 25 is grounded to the bottom through the ground line connected by the discharge clamp 21; the grounding system monitoring alarm 22, which detects the presence of the clamp 20, is then activated by viewing the instrument display to see if there is an undischarged or incompletely discharged condition. If this condition takes place, need the staff to detect two fastener, whether have the problem to and whether the wire of connection has the cracked condition.
The moving contact net retreating mode is a manual mode and an automatic mode; the mode switching is generally an automatic mode switching manual mode, the automatic mode is a conventional mode, and the manual mode is set to be used in emergency; switching back to the automatic mode after the manual mode is used each time; when the manual mode needs to be switched under a specific condition, a worker stands at the position of the third guide wheel 14, then the third guide wheel 14 is shaken, and the third guide wheel 14 rotates to drive the steel wire rope 8; the steel wire rope 8 can pull the shifting plate along one side of the rotation direction of the roller, the shifting plate can shift the Oldham coupling 10 to be separated, when the maximum position is pulled, the movable gear 7 is meshed with the first manual control gear 4-1, and the mode switching can be completed by rotating the third guide wheel 14.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (11)
1. A train loading station mobile contact network dual-mode control system comprises a mobile contact network, a transmission shaft, a manual control gear, a driving gear, a driven gear, a sliding frame, a contact suspension, a steel wire rope, a lane changing shifting plate and a cross slide block coupling;
the movable contact net comprises a portal frame, a contact suspension and a sliding frame; a sliding chute is arranged below the cross beam of the portal frame; a sliding frame is arranged on the outer side of a beam of the portal frame; a contact suspension is fixed at the bottom of the sliding frame; two ends in the sliding chute of the portal frame are respectively movably connected with a driven gear; the driven gears are driven by chains, the middle parts of the chains are fixed with the sliding frame, and the sliding frame is driven by the chains to horizontally reciprocate;
the method is characterized in that: the driven gear is meshed with the driving gear; an Oldham coupling capable of separating the shaft body is arranged on a transmission shaft of the driving gear; the shaft body is of an inner sleeve and outer sleeve structure, the shaft body on the inner side is matched with the sleeve on the outer side through a key groove, and a movable gear is fixed on the shaft body on the inner side; the movable gear can move transversely along the inner sleeve and the outer sleeve along the inner shaft body;
a lane-changing shifting plate is hinged between the Oldham coupling and a movable gear which transversely moves along with the shaft body; through holes are respectively formed above and below the plate body of the lane changing shifting plate, and steel wire ropes are arranged in the through holes in a penetrating manner; the steel wire rope is fixed with a hole position above the shifting plate;
a manual control gear is fixed on the shaft sleeve outside the rotating direction of the movable gear; when the Oldham coupling is in a separated state, the manual control gear is meshed with the movable gear.
2. The train loading station mobile contact network dual-mode control system as claimed in claim 1, wherein: the manual control gear includes: the first manual control gear, the second manual control gear and the third manual control gear are arranged on the rack; the first manual control gear is arranged on the outer side of the driving gear in the rotating direction; when the Oldham coupling is in a separated state, the first manual control gear is meshed with the driving gear; the second manual control gear is coaxial with the first manual control gear; and the third manual control gear is positioned below the second manual control gear and is driven by a chain.
3. The train loading station mobile contact network dual-mode control system as claimed in any one of claims 1 and 2, wherein: the crosshead shoe shaft coupling, the driving gear, the movable gear and the first manual control gear are arranged on the inner side of the switching box.
4. The train loading station mobile contact network dual-mode control system as claimed in claim 3, wherein: the edges of the switching box, which are positioned at the two sides of the lane changing shifting plate, are fixed with brackets; the support is hinged with the lane changing shifting plate; the length of the upper part of the lane changing shifting plate positioned at the hinged position is greater than that of the lower part of the lane changing plate positioned at the hinged position.
5. The train loading station mobile contact network dual-mode control system as claimed in claim 4, wherein: a first guide wheel is fixed at one end of the surface of the switching box; the guide wheel is arranged between two through holes of the steel wire rope penetrating through the lane changing shifting plate.
6. The train loading station mobile contact network dual-mode control system as claimed in claim 5, wherein: a second guide wheel is arranged on the outer side of the switching box; the direction of the steel wire rope is changed to be vertical downwards along the second guide wheel; a third guide wheel is fixed at the bottom of the portal frame; and a rocker is fixed on the third guide wheel.
7. The train loading station mobile contact network dual-mode control system as claimed in claim 2, wherein: the support legs of the portal frame are of hollow structures; the second manual control gear and the third manual control gear are hidden in the hollow structure, and a gap is formed in the supporting leg corresponding to the position of the third manual control gear.
8. The train loading station mobile contact network dual-mode control system as claimed in claim 1, wherein: the shaft body is connected with the driving end of the driving motor.
9. The train loading station mobile contact network dual-mode control system as claimed in claim 7, wherein: and a rocker inserting hole is formed in the middle of the third manual control gear.
10. The train loading station mobile contact network dual-mode control system as claimed in claim 1, wherein: a bracket is arranged on one side of the movable contact net along the direction of the power supply line; a support plate is fixed on one side of the support close to the power supply line, and a detection wire clamp and a discharge wire clamp are respectively fixed at the end of the support plate; one end of the discharge wire clamp is connected with a ground wire, and the other end of the ground wire is directly buried underground; the detection wire clamp is connected with the grounding system monitoring alarm.
11. The train loading station mobile contact network dual-mode control system as claimed in claim 10, wherein: guide rods are respectively arranged at the two ends of the openings of the detection wire clamp and the discharge wire clamp; one end of the guide rod is outwards expanded towards the two sides of the opening to form an included angle opening larger than the detection wire clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220351597.4U CN216833305U (en) | 2022-02-21 | 2022-02-21 | Train loading station removes contact net bimodulus control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220351597.4U CN216833305U (en) | 2022-02-21 | 2022-02-21 | Train loading station removes contact net bimodulus control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216833305U true CN216833305U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220351597.4U Active CN216833305U (en) | 2022-02-21 | 2022-02-21 | Train loading station removes contact net bimodulus control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216833305U (en) |
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- 2022-02-21 CN CN202220351597.4U patent/CN216833305U/en active Active
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