CN114295904B - Sliding contact line detection device and sliding contact line detection system - Google Patents
Sliding contact line detection device and sliding contact line detection system Download PDFInfo
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- CN114295904B CN114295904B CN202111331602.1A CN202111331602A CN114295904B CN 114295904 B CN114295904 B CN 114295904B CN 202111331602 A CN202111331602 A CN 202111331602A CN 114295904 B CN114295904 B CN 114295904B
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- 238000009434 installation Methods 0.000 claims abstract description 38
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims description 30
- 238000003860 storage Methods 0.000 claims description 12
- 230000007547 defect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
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- 238000010276 construction Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
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Abstract
The invention belongs to the technical field of monitoring systems, and particularly relates to a trolley wire detection device which comprises a guide rail, wherein a trolley wire is arranged on the surface of the guide rail, a current collector assembly is connected inside the trolley wire in a sliding manner, one end of the current collector assembly is fixedly provided with a mounting block, one side of the guide rail is provided with a mounting seat, a clamping mechanism is arranged between the mounting block and the mounting seat, and a power mechanism is arranged on the top surface of the mounting seat. According to the invention, the mounting block and the mounting seat are conveniently clamped and spliced with the current collector assembly through the clamping mechanism, the mounting seat is driven to move through the mutual matching of the power mechanism and the limiting mechanism, so that the current collector assembly moves along the other end direction of the guide rail at the position of the sliding contact line, whether the installation of the sliding contact line reaches the standard or not is detected through the matching of the distance sensor, the controller and the alarm, the operation is convenient, the working efficiency of the current collector assembly is effectively improved, and the construction safety risk of operators is reduced.
Description
Technical Field
The invention relates to the technical field of monitoring systems, in particular to a trolley line detection device and a trolley line detection system.
Background
The trolley wire is also called as a trolley wire, and is a group of power transmission devices for supplying power to mobile equipment, the trolley wire devices are widely applied to a stacker, an automatic detection line of electromechanical products, an automatic production line, a mobile electric tool and other mobile power receiving equipment, in a shuttle scene, whether the installation of the trolley wire meets the requirement or not is required to be detected after the installation of the trolley wire is completed, and whether the phenomenon of deviation and clamping exists when the trolley wire is connected with a current collector component in a plugging manner or not is mainly detected, but the following problems exist in the prior art when the trolley wire is detected:
in the prior art, when the trolley wire is detected, a manual handheld current collector is mainly adopted to cooperate with the trolley wire to move, whether defects exist or not is observed, the manual labor intensity is high, potential safety hazards are easily caused during high-place operation, and the working efficiency is low.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides a trolley line detection device and a trolley line detection system, which solve the problems that in the prior art, when the trolley line is detected, a manual handheld current collector is mainly adopted to cooperate with the trolley line to move, whether defects exist is observed, the manual labor intensity is high, potential safety hazards are easily caused when the trolley line is operated at a high place, and the working efficiency is low.
(II) technical scheme
The invention adopts the following technical scheme for realizing the purposes:
The utility model provides a wiping line detection device, includes the guide rail, the surface of guide rail is provided with the wiping line, the inside sliding connection of wiping line has the collector subassembly, the one end fixed mounting of collector subassembly has the installation piece, one side of guide rail is provided with the mount pad, be provided with joint mechanism between installation piece and the mount pad, the top surface of mount pad is provided with power unit, the surface of mount pad is provided with stop gear, one side surface mounting of mount pad has distance sensor, the top of mount pad is located one side of stop gear and is fixed with the protective housing, the inner wall of protective housing is fixed with the controller, the battery is installed to one side that the inner wall of protective housing is located the controller, one side surface fixing of protective housing has the siren.
Further, the clamping mechanism comprises a clamping plate fixed on one side surface of the mounting block, limiting openings are formed in two side surfaces of the clamping plate, an inserting plate is slidably arranged on the inner wall of the clamping plate, springs are fixed on two side surfaces of the inserting plate, protruding blocks are fixed at the end portions of the springs, and the two protruding blocks are slidably connected in the limiting openings.
Further, the power unit is including fixing the motor at mount pad top surface, one side surface mounting of mount pad has the connecting rod, the output of motor is fixed with the action wheel, the surface of action wheel is connected with from the driving wheel through belt transmission, the axle center department of driving wheel is fixed with the axis of rotation, the tip of axis of rotation runs through the connecting rod and is fixed with the rotor, the surface of rotor is laminated with the inner wall of guide rail mutually, the surface of mount pad is located one side of connecting rod and is fixed with the bracing piece, the surface of bracing piece is connected with spacing wheel through the bearing rotation, spacing wheel sliding connection is in the inner wall department of guide rail, motor and controller electric connection.
Further, stop gear is including fixing the backup pad on mount pad surface, the surface of backup pad is provided with fastening bolt, the inside slip of backup pad has the slide bar, the screw hole has been seted up on the surface of slide bar, screw hole and backup pad looks adaptation, the top of slide bar is fixed with the roof, the one end of roof is rotated through the bearing has supplementary compression roller, the surface of supplementary compression roller is laminated with the outer wall of guide rail mutually.
Further, the surface of the protective box is provided with a box door through hinge rotation, and the surface of the box door is fixedly provided with a handle.
Further, the distance sensor, the controller, the storage battery and the alarm are all electrically connected.
Further, a wiring pipe is fixed at the top of the protective box, and a rubber sleeve is arranged in the wiring pipe.
The detection system of the trolley wire detection device comprises the following steps:
S1: the method comprises the steps that a trolley wire detection device is arranged at one end part of a guide rail in advance, auxiliary limiting movement is carried out on the guide rail through a limiting mechanism on the surface of a mounting seat, stability of the device is improved, a current collector assembly is connected with a trolley wire in a sliding mode, a mounting block is connected to the end part of the current collector assembly, the mounting block is clamped with the mounting seat through a clamping mechanism, and splicing and mounting of the detection device, the guide rail and the trolley wire are completed;
S2: when monitoring is needed, the controller controls the limiting mechanism to operate, the current collector assembly is driven to slide in the sliding contact wire, the sliding contact wire moves from one end of the guide rail to the other end, when the sliding contact wire meets the installation requirement, the detection device smoothly moves to the other end of the sliding contact wire along with the current collector assembly from one end of the sliding contact wire, when the sliding contact wire has defects such as deformation and offset, the sliding contact wire generates resistance to the current collector assembly, when the resistance generated by the sliding contact wire to the current collector assembly is larger than the preset engaging force, the installation block at the end of the current collector assembly is separated from the installation seat, at the moment, the distance between the installation seat and the installation block is sensed by the distance sensor arranged on the surface of the installation seat, whether the distance exceeds the set requirement or not, a feedback signal is fed back to the controller, an alarm is sent out by the controller, meanwhile, the controller controls the power mechanism to stop running, and reminds workers to timely check the condition of the sliding contact wire at the separated position, and further realizes detection of the installation standard of the sliding contact wire;
S3: after the detection is finished, the mounting seat is manually pulled to be separated from the mounting block, the detection device is conveniently taken from one end of the guide rail to be detached, the trolley wire installed at other guide rails is conveniently monitored, when the storage battery inside the protective box is required to be charged, the door is manually held by the handle to open the box door, and then the storage battery installed inside the protective box is conveniently taken to be charged, so that the protective box is convenient for workers to use again.
(III) beneficial effects
Compared with the prior art, the invention provides a trolley wire detection device and a trolley wire detection system, which have the following beneficial effects:
According to the invention, the mounting block and the mounting seat are conveniently clamped and spliced with the current collector assembly through the clamping mechanism, the mounting seat is driven to move through the mutual matching of the power mechanism and the limiting mechanism, so that the current collector assembly moves along the other end direction of the guide rail at the position of the sliding contact line, whether the installation of the sliding contact line reaches the standard or not is detected through the matching of the distance sensor, the controller and the alarm, the operation is convenient, the working efficiency of the current collector assembly is effectively improved, and the construction safety risk of operators is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side cross-sectional view of a trolley line detection apparatus in accordance with the present invention;
FIG. 3 is a partial cross-sectional view of the clamping mechanism of the present invention;
FIG. 4 is a schematic view of a partial perspective of the power mechanism and spacing mechanism of the present invention;
FIG. 5 is a top cross-sectional view of the protective housing of the present invention;
FIG. 6 is a system diagram of a trolley wire detection apparatus in accordance with the present invention.
In the figure: 1. a guide rail; 2. a trolley line; 3. a current collector assembly; 4. a mounting block; 5. a mounting base; 6. a clamping mechanism; 601. a clamping plate; 602. a limit opening; 603. inserting plate; 604. a spring; 605. a bump; 7. a power mechanism; 701. a motor; 702. a connecting rod; 703. a driving wheel; 704. driven wheel; 705. a rotating shaft; 706. a rotating roller; 707. a support rod; 708. a limiting wheel; 8. a limiting mechanism; 801. a support plate; 802. a fastening bolt; 803. a threaded hole; 804. a slide bar; 805. a top plate; 806. an auxiliary press roll; 9. a distance sensor; 10. a protective box; 11. a controller; 12. a storage battery; 13. an alarm; 14. a door; 15. a handle; 16. and a wire connection pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, a trolley line detection device according to an embodiment of the present invention includes a guide rail 1, a trolley line 2 is disposed on a surface of the guide rail 1, a collector component 3 is slidably connected inside the trolley line 2, a mounting block 4 is fixedly mounted at one end of the collector component 3, a mounting seat 5 is disposed on one side of the guide rail 1, a clamping mechanism 6 is disposed between the mounting block 4 and the mounting seat 5, a power mechanism 7 is disposed on a top surface of the mounting seat 5, a limiting mechanism 8 is disposed on a surface of the mounting seat 5, a distance sensor 9 is mounted on a surface of one side of the mounting seat 5, a protective case 10 is fixed on one side of the limiting mechanism 8 at a top of the mounting seat 5, a controller 11 is fixed on an inner wall of the protective case 10, a storage battery 12 is mounted on one side of the inner wall of the protective case 10 located on the controller 11, and an alarm 13 is fixed on one side surface of the protective case 10; during the use, link together mount pad 5 and installation piece 4 joint through joint mechanism 6, and then install with current collector assembly 3, utilize power unit 7 to drive mount pad 5 and remove, and then drive the current collector assembly 3 on installation piece 4 surface and remove, it is removed to the other end at guide rail 1 through current collector assembly 3 cooperation wiping line 2, detect the installation standard of wiping line 2, whether meet the requirements, when the skew appears in wiping line 2 or the dead state, the mount pad 5 breaks away from the state with installation piece 4, utilize the distance sensor 9 response separation distance, surpass the setting value, send the alarm by alarm 13, remind the check point of staff's wiping line 2 department to have the defect, make things convenient for the maintainer to examine and repair, carry out supplementary spacing to the device through stop gear 8 in the device operation in-process, improve the stability of device, it should be stated, the model of distance sensor 9 is SN04-N, the model of controller 11 is Siemens 200.
As shown in fig. 3, in some embodiments, the clamping mechanism 6 includes a clamping plate 601 fixed on one side surface of the mounting block 4, two side surfaces of the clamping plate 601 are provided with limiting openings 602, an insert plate 603 slides on the inner wall of the clamping plate 601, springs 604 are fixed on two side surfaces of the insert plate 603, protruding blocks 605 are fixed on ends of the springs 604, and the two protruding blocks 605 are connected inside the limiting openings 602 in a sliding manner; the inserting plate 603 is manually inserted into the clamping plate 601, the inserting plate 603 and the clamping plate 601 are clamped together by utilizing the elastic rebound extrusion protruding blocks 605 of the springs 604 to correspond to the limiting openings 602, the mounting seat 5 is convenient to drive the mounting block 4 and the current collector assembly 3 to move, and therefore the sliding contact line 2 is detected.
As shown in fig. 4, in some embodiments, the power mechanism 7 includes a motor 701 fixed on the top surface of the mounting seat 5, a connecting rod 702 is fixed on one side surface of the mounting seat 5, a driving wheel 703 is fixed at the output end of the motor 701, the surface of the driving wheel 703 is connected with a driven wheel 704 through belt transmission, a rotation shaft 705 is fixed at the axle center of the driven wheel 704, an end portion of the rotation shaft 705 penetrates through the connecting rod 702 to be fixed with a rotation roller 706, the surface of the rotation roller 706 is attached to the inner wall of the guide rail 1, a supporting rod 707 is fixed on one side of the surface of the mounting seat 5, a limiting wheel 708 is rotatably connected on the surface of the supporting rod 707 through a bearing, the limiting wheel 708 is slidably connected at the inner wall of the guide rail 1, and the motor 701 is electrically connected with the controller 11; the starter motor 701 drives the driving wheel 703 to rotate, drives the driven wheel 704 to rotate through the driving wheel 703, drives the rotating shaft 705 to rotate through the driven wheel 704, drives the rotating roller 706 to rotate through the rotating shaft 705, is attached to the inner wall of the guide rail 1 through the surface of the rotating roller 706, and supports and limits the guide rail 1 through the attaching and sliding of the limiting wheel 708 on the inner wall of the guide rail 1, so that the device moves on the guide rail 1, the trouble of manual carrying operation is omitted, and the working efficiency is improved.
As shown in fig. 4, in some embodiments, the limiting mechanism 8 includes a supporting plate 801 fixed on the surface of the mounting seat 5, a fastening bolt 802 is disposed on the surface of the supporting plate 801, a sliding rod 804 slides in the supporting plate 801, a threaded hole 803 is formed on the surface of the sliding rod 804, the threaded hole 803 is matched with the supporting plate 801, a top plate 805 is fixed on the top of the sliding rod 804, an auxiliary pressing roller 806 is rotated at one end of the top plate 805 through a bearing, and the surface of the auxiliary pressing roller 806 is matched with the outer wall of the guide rail 1; the sliding rod 804 is manually taken to slide in the supporting plate 801, the fastening bolt 802 is screwed to be limited and fixed corresponding to the threaded hole 803 on the surface of the sliding rod 804, and the auxiliary pressing roller 806 is attached to the outer wall of the top of the guide rail 1, so that the stability of operation of the detection device is improved by being matched with the power mechanism 7.
As shown in fig. 5, in some embodiments, the surface of the protection box 10 is pivoted with a box door 14 through a hinge, and a handle 15 is fixed on the surface of the box door 14; the door 14 is opened by manually holding the handle 15, so that the controller 11 and the storage battery 12 in the protective box 10 can be overhauled conveniently, and the charging operation is more convenient to use.
As shown in fig. 6, in some embodiments, the distance sensor 9, the controller 11, the battery 12, and the alarm 13 are all electrically connected; the motor 701 is controlled to be started by the controller 11, so that the power mechanism 7 operates, the detection device automatically operates, when the sliding contact wire 2 is deviated or blocked, the installation seat 5 and the installation block 4 are separated, the distance between the installation seat 5 and the installation block 4 is sensed by the distance sensor 9, when the preset value is exceeded, a signal is fed back to the controller 11, the alarm 13 is controlled by the controller 11 to give an alarm, and the staff is reminded to carry out inspection and maintenance.
As shown in fig. 4, in some embodiments, the top of the protective case 10 is fixed with a wire connection pipe 16, and a rubber sleeve is installed inside the wire connection pipe 16; the wiring is conveniently led into the interior of the protective box 10 through the wiring pipe 16 to be connected with the controller 11 and the storage battery 12, and the wiring which is connected in a penetrating manner is conveniently protected through the rubber sleeve in the wiring pipe 16.
The detection system of the trolley wire detection device comprises the following steps:
S1: the sliding contact line detection device is arranged at one end part of the guide rail 1 in advance, the guide rail 1 is subjected to auxiliary limiting movement through a limiting mechanism 8 on the surface of a mounting seat 5, the stability of the device is improved, then after the current collector assembly 3 and the sliding contact line 2 are subjected to sliding connection and mounting, the mounting block 4 is connected to the end part of the current collector assembly 3, and after the mounting block 4 and the mounting seat 5 are clamped through a clamping mechanism 6, the splicing and mounting between the detection device and the guide rail 1 and the sliding contact line 2 are completed;
S2: when monitoring is needed, the controller 11 controls the limit mechanism 8 to operate, the current collector assembly 3 is driven to slide in the sliding contact line 2, the current collector assembly 3 moves from one end of the guide rail 1 to the other end, when the sliding contact line 2 meets the installation requirement, the detection device smoothly moves to the other end of the sliding contact line 2 along with the current collector assembly 3 from one end of the sliding contact line 2, when the sliding contact line 2 has defects such as deformation and deflection, the sliding contact line 2 generates resistance to the current collector assembly 3, when the resistance generated by the sliding contact line 2 to the current collector assembly 3 is larger than a preset engaging force, the installation block 4 at the end of the current collector assembly 3 is separated from the installation seat 5, at the moment, the distance between the installation seat 5 and the installation block 4 is sensed by the distance sensor 9 arranged on the surface of the installation seat 5, whether the distance exceeds the set requirement or not, a feedback signal is fed back to the controller 11, an alarm 13 is controlled by the controller 11, and simultaneously, the controller 11 controls the power mechanism 7 to stop running, so that workers can be reminded of checking the condition of the sliding contact line 2 at the position in time, and further realizing detection of the installation standard of the sliding contact line 2;
S3: after the detection is finished, the mounting seat 5 is manually pulled to be separated from the mounting block 4, the detection device is conveniently taken and detached from one end of the guide rail 1, the trolley line 2 mounted at other guide rails 1 is conveniently monitored, when the storage battery 12 in the protective box 10 is required to be charged, the door 14 is manually opened by holding the handle 15, and then the storage battery 12 mounted in the protective box 10 is conveniently taken and charged, so that the protective box is convenient for workers to use again.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a wiping line detection device, includes guide rail (1), its characterized in that: the surface of guide rail (1) is provided with slide wire (2), the inside sliding connection of slide wire (2) has collector subassembly (3), the one end fixed mounting of collector subassembly (3) has installation piece (4), one side of guide rail (1) is provided with mount pad (5), be provided with joint mechanism (6) between installation piece (4) and mount pad (5), the top surface of mount pad (5) is provided with power unit (7), the surface of mount pad (5) is provided with stop gear (8), one side surface mounting of mount pad (5) has distance sensor (9), the top of mount pad (5) is located one side of stop gear (8) and is fixed with protective housing (10), the inner wall of protective housing (10) is fixed with controller (11), the inner wall of protective housing (10) is located one side of controller (11) and installs battery (12), one side surface fixation of protective housing (10) has alarm (13), joint mechanism (6) are including fixing at one side of fixing the block (4) and installing joint plate (601) two side (601) surface opening of joint plate (601), the two side surfaces of the plugboard (603) are respectively fixed with a spring (604), the end parts of the springs (604) are fixedly provided with a bump (605), the two bumps (605) are respectively and slidably connected in the limiting opening (602), the power mechanism (7) comprises a motor (701) fixed on the top surface of the mounting seat (5), one side surface of the mounting seat (5) is fixedly provided with a connecting rod (702), the output end of the motor (701) is fixedly provided with a driving wheel (703), the surface of the driving wheel (703) is connected with a driven wheel (704) through belt transmission, the axle center of the driven wheel (704) is fixedly provided with a rotating roller (706), the end part of the rotating roller (705) penetrates through the connecting rod (702) to be fixedly provided with a rotating roller (706), the surface of the rotating roller (706) is attached to the inner wall of the guide rail (1), the surface of the mounting seat (5) is fixedly provided with a supporting rod (707) on one side of the connecting rod (702), the surface of the supporting rod (707) is rotationally connected with a limiting wheel (708) through a bearing, the limiting wheel (708) is slidably connected to the inner wall of the guide rail (1), the motor (705) is fixedly connected to the inner wall of the guide rail (8) through a bearing (11), the surface of backup pad (801) is provided with fastening bolt (802), the inside slip of backup pad (801) has slide bar (804), screw hole (803) have been seted up on the surface of slide bar (804), screw hole (803) and backup pad (801) looks adaptation, the top of slide bar (804) is fixed with roof (805), the one end of roof (805) is rotated through the bearing has auxiliary compression roller (806), the surface of auxiliary compression roller (806) is laminated with the outer wall of guide rail (1) mutually.
2. The trolley line detection apparatus of claim 1, wherein: the surface of the protective box (10) is provided with a box door (14) through hinge rotation, and the surface of the box door (14) is fixedly provided with a handle (15).
3. The trolley line detection apparatus of claim 1, wherein: the distance sensor (9), the controller (11), the storage battery (12) and the alarm (13) are all electrically connected.
4. The trolley line detection apparatus of claim 1, wherein: the top of protective housing (10) is fixed with wiring pipe (16), the internally mounted of wiring pipe (16) has rubber sleeve.
5. A system according to any one of claims 1-4, wherein: the method comprises the following steps:
S1: the sliding contact line detection device is arranged at one end part of the guide rail (1) in advance, the guide rail (1) is subjected to auxiliary limiting movement through a limiting mechanism (8) on the surface of the mounting seat (5), the stability of the device is improved, then after the current collector assembly (3) and the sliding contact line (2) are subjected to sliding connection and installation, the mounting block (4) is connected at the end part of the current collector assembly (3), and after the mounting block (4) and the mounting seat (5) are subjected to clamping through the clamping mechanism (6), the splicing and installation between the detection device and the guide rail (1) and the sliding contact line (2) are completed;
s2: when monitoring is needed, the controller (11) controls the limit mechanism (8) to operate, the current collector assembly (3) is driven to slide in the sliding contact line (2), the current collector assembly moves from one end of the guide rail (1) to the other end, when the sliding contact line (2) meets the installation requirement, the detection device smoothly moves to the other end of the sliding contact line (2) along with the current collector assembly (3) from one end of the sliding contact line (2), when the sliding contact line (2) has deformation and offset defects, the sliding contact line (2) generates resistance to the current collector assembly (3), and when the resistance generated by the sliding contact line (2) to the current collector assembly (3) is larger than the preset engagement force, the installation block (4) at the end of the current collector assembly (3) is separated from the installation seat (5), at the moment, the distance sensor (9) installed on the surface of the installation seat (5) senses the distance between the installation seat (5) and the installation block (4), whether the distance exceeds the set requirement or not, a feedback signal is fed to the controller (11), an alarm is sent out through the controller (11), and meanwhile, the controller (11) controls the alarm (13) to generate resistance to the current collector assembly, and the current collector assembly (2) stops the current collector assembly (3), and the resistance generated by the sliding contact line is separated from the current collector assembly (3), and the current collector assembly is separated from the current collector assembly, and the current collector assembly is detected by the current.
S3: after the detection is finished, the mounting seat (5) is manually pulled to be separated from the mounting block (4), the detection device is conveniently taken and detached from one end of the guide rail (1), the trolley wire (2) mounted at other guide rails (1) is conveniently monitored, when the storage battery (12) in the protective box (10) is required to be charged, the door (14) is manually opened by the handle (15), and then the storage battery (12) mounted in the protective box (10) is conveniently taken and charged, so that the protective box is convenient for workers to use again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111331602.1A CN114295904B (en) | 2021-11-11 | 2021-11-11 | Sliding contact line detection device and sliding contact line detection system |
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| CN202111331602.1A CN114295904B (en) | 2021-11-11 | 2021-11-11 | Sliding contact line detection device and sliding contact line detection system |
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| CN114295904B true CN114295904B (en) | 2024-05-10 |
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| CN112297957A (en) * | 2020-09-08 | 2021-02-02 | 北京京东乾石科技有限公司 | Wiping line detection device and wiping line detection system |
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2021
- 2021-11-11 CN CN202111331602.1A patent/CN114295904B/en active Active
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| JP2001260717A (en) * | 2000-03-14 | 2001-09-26 | Mitsubishi Cable Ind Ltd | Wear detection apparatus for trolley wire and trolley wire structure |
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