Intelligent visual grounding device for railway

Abstract

An intelligent visual grounding device for a railway is used for solving the problem that an existing grounding device needs manual operation and cannot monitor the on-off state in real time. Comprising a wiring board, a grounding switch, a grounding switch rotating shaft, a base, a voltage sensor, a magnetic induction sensor, a T-shaped converter, a video monitoring device and a base, the wiring board and the base are arranged up and down, the grounding switch rotating shaft is rotatably installed on the base, and the lower end of the grounding switch is fixed on the grounding switch rotating shaft. The magnetic induction sensor directly faces the grounding knife-switch rotating shaft, and a magnetic block is fixed on the outer wall of the grounding knife-switch rotating shaft. The T-shaped converter is located on the base, an input shaft of the T-shaped converter is connected with the driving device, an output shaft of the T-shaped converter is connected with a rotating shaft of the grounding switch through the transmission mechanism, and the video monitoring device is fixed on the base and used for monitoring images of the grounding switch. According to the invention, through video monitoring and the magnetic induction sensor, double judgment and visual judgment of in-place opening and closing of the grounding knife switch are realized.

Description

Technical Field

[0001] The invention relates to the technical field of grounding devices, in particular to an intelligent visual grounding device for railways. Background Art

[0002] With the rapid development of electrified railways in my country, the demand for grounding devices is also increasing. Grounding devices are an important part of railway equipment. They play a key role in ensuring the safe and stable operation of the power system and preventing electric shock accidents. Especially in urban railway substations and large railway substations, the safe operation and maintenance of grounding devices are of top priority. At the same time, with the development of intelligent technology, traditional grounding devices can no longer meet the needs of modern railways. Therefore, intelligent visual grounding devices came into being.

[0003] The existing grounding devices have the following defects in practical applications: ① Most of the existing grounding devices require manual operation, the operation process is cumbersome, and it is easy to make mistakes, thus affecting the safe operation of the equipment. ② The existing grounding devices cannot monitor the status of the switch in real time. Once the switch fails, it is difficult to find and deal with it in time, which will seriously affect the normal operation of the equipment. ③ The existing grounding devices cannot realize automatic operation, which will greatly reduce the working efficiency of the equipment and increase the maintenance cost of the equipment. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent visual grounding device for railways, which is used to solve the problem that the existing grounding device needs manual operation and cannot monitor the switch status in real time.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an intelligent visual grounding device for railways, including a rain cover, a wiring board, a voltage sensor, a grounding knife, a grounding knife rotating shaft, a magnetic induction sensor, a T-type converter, a video monitoring device and a base, the wiring board and the base are arranged up and down and the voltage sensor is arranged between the two for detecting the line voltage, the wiring board has a grounding static contact and the wiring board is connected to the line cable, the rain cover is located above the wiring board, the grounding knife rotating shaft is rotatably installed on the base, the lower end of the grounding knife is fixed on the grounding knife rotating shaft, the magnetic induction sensor is arranged opposite to the grounding knife rotating shaft, and the outer wall of the grounding knife rotating shaft is fixed with two A magnetic block used to be sensed by a magnetic induction sensor, when one of the magnetic blocks is facing the magnetic induction sensor, the grounding knife is in place, and when the other magnetic block is facing the magnetic induction sensor, the grounding knife is in place; the T-type converter is located on the base, the input shaft of the T-type converter is connected to the driving device, the output shaft of the T-type converter is connected to the grounding knife shaft through a transmission mechanism, a reversing mechanism is provided between the input shaft and the output shaft of the T-type converter, the rotational motion output by the T-type converter is transmitted to the grounding knife shaft through the transmission mechanism, and then the grounding knife shaft is driven to rotate, and the video monitoring device is fixed on the base to monitor the image of the grounding knife.

[0006] Furthermore, the reversing mechanism comprises a driving bevel gear and a driven bevel gear that are meshed with each other, the driving bevel gear is fixed on the input shaft, and the driven bevel gear is fixed on the output shaft.

[0007] Furthermore, the transmission mechanism includes an active crank arm, a driven crank arm and a connecting rod, one end of the active crank arm is fixed on the output shaft, the other end of the active crank arm is hinged to one end of the connecting rod, one end of the driven crank arm is fixed on the grounding knife shaft, and the other end of the driven crank arm is hinged to the other end of the connecting rod.

[0008] Furthermore, the T-type converter has a converter mounting plate, the converter mounting plate is fixedly connected to the base via bolts, and the magnetic induction sensor is fixed on the base.

[0009] Furthermore, the grounding knife includes a fixed plate, an insulating plate, a copper plate, a clamping spring, an insulating block and a copper block. The fixed plates are two parallel plates, and an insulating plate is arranged in parallel between the two fixed plates. Two parallel copper plates are arranged between the two insulating plates. The fixed plate is in contact with the insulating plate, and the insulating plate is in contact with the copper plate. The insulating block and the copper block are located between the two copper plates and the insulating block and the copper block are arranged up and down. The insulating block is in contact with the copper plate, and the copper block is in contact with the copper plate. There is a screw between the upper ends of the two copper plates, and nuts are fitted at both ends of the screw. A clamping spring is provided between the nut and the upper end of the corresponding copper plate. The lower ends of the fixed plate and the insulating plate are fixed on the grounding knife rotating shaft; the fixed plate, the insulating plate, the copper plate and the copper block, as well as the fixed plate, the insulating plate, the copper plate and the insulating block are fixedly connected by a bolt assembly.

[0010] Furthermore, the fixed plate, insulating plate, copper plate, clamping spring, insulating block and copper block each have two groups, and each group of two fixed plates, two insulating plates, two copper plates, two clamping springs, one insulating block and one copper block constitute a grounding knife unit, and the two grounding knife units are fixedly connected together by a connecting pin.

[0011] Furthermore, the end of the grounding knife shaft is provided with a mechanical limiter, the mechanical limiter is provided with two limit blocks, the side wall of the base is provided with two stop rods, the limit blocks are located on an arc with the grounding knife shaft as the center and the two stop rods as end points, when one of the limit blocks contacts one of the stop rods, it indicates that the grounding knife shaft has been rotated to close the switch, and when the other limit block contacts the other stop rod, it indicates that the grounding knife shaft has been rotated to open the switch.

[0012] Furthermore, the copper plate is insulated from the bolt assembly, and the copper plate is insulated from the grounding knife shaft.

[0013] Furthermore, the copper block has a reserved mounting hole, and the reserved mounting hole is grounded or connected to other equipment through a soft connector.

[0014] Furthermore, the terminal board is provided with a limit block, and when the end face of the limit block contacts the side face of the upper end of the copper plate, it indicates that the grounding knife is in place.

[0015] The beneficial effects of the present invention are as follows: the video monitoring device of the present invention can provide a real-time monitoring screen of the grounding knife, observe the opening and closing state of the grounding knife, check whether the closing and opening are in place, realize the real-time monitoring of the switch state, once the switch fails, it can be discovered and handled in time, avoiding the long-term shutdown of the equipment and improving the operation efficiency of the equipment; the intelligent visual grounding device of the present invention drives the input shaft to rotate through the driving device, and the input shaft drives the grounding knife rotating shaft to rotate through the reversing mechanism and the transmission mechanism to realize the opening and closing, realizes the automatic operation, no longer requires manual intervention, reduces the possibility of manual misoperation, greatly improves the operation safety of the equipment, and also reduces the maintenance cost of the equipment. The present invention uses a voltage sensor to replace the support insulator of the grounding switch to detect the line voltage, so that the voltage measurement is more accurate, which is conducive to the safe operation of the equipment; the voltage sensor has the function of collecting the line voltage, and the line voltage data can be collected by the voltage sensor, so that the background can realize the real-time reading and analysis of the line voltage. The magnetic induction sensor of the present invention directly detects the magnetic block on the grounding knife rotating shaft, and then determines whether the grounding switch is in place, so that the judgment of the switch state is more accurate, and the operation reliability of the equipment is improved. By setting up a magnetic induction sensor, the angle change is used to sense whether the grounding knife is in place. By setting up a video monitoring device, images are used to sense whether the grounding knife is in place, thereby achieving dual judgment and visual judgment of whether the grounding knife is in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the present invention; Figure 2 It is a left side view of the present invention; Figure 3 It is a front view of the grounding knife of the present invention; Figure 4 It is a left side view of the grounding knife of the present invention; Figure 5 This is a diagram of the opening state of the present invention; Figure 6 This is a diagram of the closing state of the present invention; Figure 7 It is a schematic diagram when the terminal block 2 is in contact with the grounding knife 4; In the figure: 1 rain cover, 2 terminal block, 21 line installation hole, 22 terminal block static contact, 23 limit block, 3 voltage sensor, 4 grounding knife, 41 clamping spring, 42 copper plate, 43 insulating block, 44 insulating plate, 45 fixing plate, 46 copper block, 461 reserved installation hole, 47 insulating sleeve, 48 screw, 49 nut, 5 grounding knife shaft, 6 magnetic induction sensor, 7 T-type converter, 71 converter mounting plate, 72 input shaft, 8 video monitoring device, 9 mechanical limiter, 91 limit block, 10 base, 11 bolt assembly, 12 magnetic block, 13 connecting rod, 14 output shaft, 15 active crank arm, 16 driven crank arm, 17 connecting pin, 18 stop rod. DETAILED DESCRIPTION

[0017] like Figures 1 to 7 As shown, the grounding device of the present invention includes a rain cover 1, a terminal block 2, a voltage sensor 3, a grounding knife 4, a grounding knife shaft 5, a magnetic induction sensor 6, a T-type converter 7, a video monitoring device 8 and a base 10. The structure and working principle of the present invention are described in detail below in conjunction with the accompanying drawings.

[0018] like Figures 1 to 7 As shown, an intelligent visual grounding device for railway includes a rain cover 1, a wiring board 2, a voltage sensor 3, a grounding knife 4, a grounding knife shaft 5, a magnetic induction sensor 6, a T-type converter 7, a video monitoring device 8 and a base 10. The wiring board 2 and the base 10 are arranged up and down, one end of the wiring board 2 has a wiring board static contact 22 and a limit block 23, and the other end of the wiring board 2 has a line installation hole 21. The setting of the line installation hole 21 is used to connect the wiring board 2 with the line cable. The wiring board 2 and the base 10 are existing technologies, and the voltage sensor 3 is arranged between the wiring board 2 and the base 10. On the one hand, the voltage sensor 3 realizes the mechanical connection between the wiring board 2 and the base 10; on the other hand, the voltage sensor 3 separates the wiring board 2 from the base 10; finally, the voltage sensor 3 is electrically connected to the wiring board 2, and the setting of the voltage sensor 3 can detect the voltage of the line. The voltage sensor 3 has the function of collecting the line voltage. Through the collection of the line voltage data by the voltage sensor 3, the real-time reading and analysis of the line voltage can be realized in the background.

[0019] like Figure 1 , Figure 2 As shown, the rain cover 1 is located above the terminal block 2, and the rain cover 1 is buckled on the terminal block 2. The top of the rain cover 1 is an arc surface or a slope to achieve the diversion of rainwater. The grounding knife shaft 5 is rotatably installed on the base 10, and one end of the grounding knife 4 is fixed on the grounding knife shaft 5. When the grounding knife shaft 5 rotates, it drives the grounding knife 4 to rotate. When the other end of the grounding knife 4 contacts the static contact 22 of the terminal block, the grounding knife is closed; when the other end of the grounding knife 4 separates from the static contact 22 of the terminal block, the grounding knife is opened. The magnetic induction sensor 6 is set opposite to the grounding knife shaft 5, as shown in FIG. Figure 5 As shown, two magnetic blocks 12 for being sensed by the magnetic induction sensor 6 are fixed to the outer wall of the grounding knife rotating shaft 5. When one of the magnetic blocks 12 is directly opposite to the magnetic induction sensor 6, it indicates that the grounding knife 4 is in the closed position. When the other magnetic block 12 is directly opposite to the magnetic induction sensor 6, it indicates that the grounding knife 4 is in the open position.

[0020] like Figure 1 , Figure 5 As shown, the T-type converter 7 is located on the base 10, the input shaft 72 of the T-type converter 7 is connected to the driving device, and the output shaft 14 of the T-type converter 7 is connected to the grounding knife shaft 5 through a transmission mechanism. A reversing mechanism is provided between the input shaft 72 and the output shaft 14 of the T-type converter 7. The setting of the reversing mechanism realizes the power transmission between the input shaft 72 and the output shaft 14, and realizes the change of the power direction. Specifically, the reversing mechanism includes an active bevel gear and a driven bevel gear that are meshed and arranged. The active bevel gear and the driven bevel gear are both rotatably installed in the T-type converter 7. The active bevel gear is fixed on the input shaft 72, and the driven bevel gear is fixed on the output shaft 14. The input shaft 72 is arranged vertically, and the output shaft 14 is arranged horizontally, so that the rotational motion of the input shaft 72 in the horizontal plane is converted into the rotational motion of the output shaft 14 in the vertical plane through the reversing mechanism. The rotational motion output by the T-type converter 7, that is, the rotational motion of the output shaft 14, is transmitted to the grounding knife shaft 5 through the transmission mechanism, thereby driving the rotation of the grounding knife shaft 5. As shown Figure 5 As shown, the transmission mechanism includes an active crank arm 15, a driven crank arm 16 and a connecting rod 13. One end of the active crank arm 15 is fixed on the output shaft 14, and the other end of the active crank arm 15 is hinged to one end of the connecting rod 13. One end of the driven crank arm 16 is fixed to the grounding knife shaft 5, and the other end of the driven crank arm 16 is hinged to the other end of the connecting rod 13. The active crank arm 15, the driven crank arm 16 and the connecting rod 13 constitute a parallelogram connecting rod mechanism. When the output shaft 14 rotates, it drives the active crank arm 15 to swing. The swing of the active crank arm 15 is transmitted to the driven crank arm 16 through the connecting rod 13, thereby driving the swing of the driven crank arm 16, and thereby driving the swing of the grounding knife shaft 5. For ease of assembly, the T-type converter 7 is provided with a converter mounting plate 71. The converter mounting plate 71 is fixedly connected to the base 10 by bolts, and the magnetic induction sensor 6 is fixed to the base 10. As shown Figure 6 As shown, when the magnetic induction sensor 6 senses one of the magnetic blocks 12, the upper limit block 91 on the mechanical limiter 9 contacts the upper stopper 18, and the grounding knife 4 is in a vertical state or the angle between it and the vertical direction is the smallest. At this time, the grounding knife 4 is closed in place. Figure 5 As shown, when the magnetic induction sensor 6 senses another magnetic block 12, the lower limit block 91 on the mechanical limiter 9 contacts the lower baffle 18, and the grounding knife 4 is in a horizontal state or the angle between it and the horizontal direction is the smallest. At this time, the grounding knife 4 is in the open position.

[0021] like Figure 1 , Figure 2 As shown, the video monitoring device 8 is fixed on the base 10 to monitor the image of the grounding knife 4. By observing the position and state image of the grounding knife 4, it is judged from the image angle whether the grounding knife is closed or opened.

[0022] like Figure 3 , Figure 4 As shown, the grounding knife 4 includes a fixed plate 45, an insulating plate 44, a copper plate 42, a clamping spring 41, an insulating block 43 and a copper block 46. The fixed plates 45 are two parallel plates, and two parallel insulating plates 44 are arranged between the two fixed plates 45. Two parallel copper plates 42 are arranged between the two insulating plates 44. The length of the copper plate 42 is greater than the length of the fixed plate 45 and also greater than the length of the insulating plate 44. The fixed plate 45 and the insulating plate 44, and the insulating plate 44 and the copper plate 42 are in contact. The insulating block 43 and the copper block 46 are both located between the two copper plates 42, and the insulating block 43 and the copper block 46 are arranged up and down. The length of the insulating block 43 is greater than the length of the copper block 43. The insulating block 43 is in contact with the copper plate 42, and the copper block 46 is in contact with the copper plate 42. A screw 48 is provided between the upper ends of the two copper plates 42. Nuts 49 are installed at both ends of the screw 48. A clamping spring 41 is provided between the nut 49 and the corresponding upper end of the copper plate 42. When the nut 49 is rotated, the preload of the clamping spring 41 can be adjusted, thereby adjusting the clamping force between the upper ends of the copper plates 42. The lower ends of the fixed plate 45 and the insulating plate 44 are fixed on the grounding knife rotating shaft 5. The fixed plate 45, the insulating plate 44, the copper plate 42 and the copper block 46, as well as the fixed plate 45, the insulating plate 44, the copper plate 42 and the insulating block 43 are fixedly connected by bolt assemblies 11. The setting of the bolt assemblies 11 fixes the fixed plate 45, the insulating plate 44, the copper plate 42, the insulating block 43 and the copper block 46 into a whole. The fixing plate 45, the insulating plate 44, the copper plate 42, the clamping spring 41, the insulating block 43 and the copper block 46 each have two groups, and each group of two fixing plates 45, two insulating plates 44, two copper plates 42, two clamping springs 41, one insulating block 43 and one copper block 46 constitute a grounding knife unit, and the two grounding knife units are fixedly connected together by a connecting pin 17. The two ends of the connecting pin 17 are mounting parts, and the middle of the connecting pin 17 is a spacing part, and the outer diameter of the mounting part is smaller than the outer diameter of the spacing part. The grounding knife unit is located on the mounting part and contacts the end face of the spacing part, and the mounting part passes through the grounding knife unit. A clamp or a positioning pin is provided on the mounting part, and the clamp or the positioning pin cooperates with the end face of the spacing part to realize the positioning of the grounding knife unit. The copper plate 42 is made of T2Y material, and the top closing position is processed with a rounded corner. When the grounding knife 4 is closed, the rounded corner setting on the copper plate 42 enables the grounding knife 4 to have a self-aligning function; the upper end of the copper plate 42 adopts a graphite silver plating process to increase wear resistance. The insulating plate 44 and the insulating block 43 are both made of epoxy glass cloth, with a temperature resistance grade of F and a barrier grade of V0. The fixing plate 45 is made of 304 stainless steel.

[0023] like Figure 7 As shown, when the grounding knife 4 is closed, the static contact 22 of the terminal block contacts the copper plate 42 of the grounding knife 4 to realize the electrical connection between the grounding knife 4 and the terminal block 2. At this time, the end face of the limit block 23 contacts the side wall of the copper plate 42, and the limit block 23 plays a limiting role on the grounding knife 4 to avoid over-closing. When the limit block 23 contacts the copper plate 42 of the grounding knife 4, it indicates that the grounding knife 4 is closed in place.

[0024] like Figure 3 As shown, the copper block 46 has a reserved mounting hole 461, and the reserved mounting hole 461 is provided for connecting the grounding knife 4 to other equipment through a flexible connector, or directly grounding the grounding knife 4.

[0025] In order to realize the mechanical limit of the rotation of the grounding knife shaft 5, as Figure 2 As shown, the end of the grounding knife shaft 5 is provided with a mechanical limiter 9, and the mechanical limiter 9 is provided with two limit blocks 91. The side wall of the base 10 is provided with two baffle rods 18. The limit blocks 91 are located on an arc with the grounding knife shaft 5 as the center and the two baffle rods 18 as end points. When one of the limit blocks 91 contacts one of the baffle rods 18, it indicates that the grounding knife shaft 5 is rotated to the closed position. When the other limit block 91 contacts the other baffle rod 18, it indicates that the grounding knife shaft 5 is rotated to the open position.

[0026] To achieve insulation between the copper plate 42 and the bolt assembly 11, an insulating sleeve 47 is provided between the copper plate 42 and the bolt assembly 11. The insulating sleeve 47 is made of epoxy glass cloth. To achieve insulation between the copper plate 42 and the grounding knife rotating shaft 5, an insulating plate 44 is also provided between the copper plate 42 and the grounding knife rotating shaft 5.

[0027] The video monitoring device 8 of the present invention can provide a real-time monitoring screen of the grounding knife 4, observe the opening and closing state of the grounding knife 4, check whether the closing and opening are in place, and realize real-time monitoring of the switch state. Once the switch fails, it can be discovered and handled in time, avoiding long-term shutdown of the equipment and improving the operation efficiency of the equipment; the intelligent visual grounding device of the present invention drives the input shaft 72 to rotate through the driving device, and the input shaft 72 drives the grounding knife rotating shaft 5 to rotate through the reversing mechanism and the transmission mechanism to realize the opening and closing, realizing automatic operation, no longer requiring manual intervention, reducing the possibility of manual misoperation, greatly improving the operation safety of the equipment, and also reducing the maintenance cost of the equipment. The present invention uses a voltage sensor 3 instead of the support insulator of the grounding switch to detect the line voltage, so that the voltage measurement is more accurate, which is conducive to the safe operation of the equipment. The magnetic induction sensor of the present invention directly detects the magnetic block on the grounding knife rotating shaft, and then determines whether the grounding switch is in place, so that the judgment of the switch state is more accurate, and the operation reliability of the equipment is improved. Through the setting of magnetic induction sensor, the angle change is used to sense whether the grounding knife is in place; through the setting of video monitoring device, the image is used to sense whether the grounding knife is in place, thereby realizing the double judgment and visual judgment of the grounding knife opening and closing in place. The setting of mechanical limiter 9 limits the rotation angle of grounding knife shaft 5, thereby avoiding over-position of opening and closing.

Claims

1. An intelligent visual grounding device for railways, comprising a wiring board, a grounding knife, a grounding knife rotating shaft and a base, wherein the wiring board and the base are arranged up and down, the wiring board has a grounding static contact and the wiring board is connected to the line cable, the grounding knife rotating shaft is rotatably mounted on the base, and the lower end of the grounding knife is fixed on the grounding knife rotating shaft, characterized in that: It also includes a rain cover, a voltage sensor, a magnetic induction sensor, a T-type converter, a video monitoring device and a base, wherein the voltage sensor is arranged between the wiring board and the base for detecting the line voltage, the rain cover is located above the wiring board, the magnetic induction sensor is arranged opposite to the grounding knife shaft, and the outer wall of the grounding knife shaft is fixed with two magnetic blocks for being sensed by the magnetic induction sensor, when one of the magnetic blocks is opposite to the magnetic induction sensor, the grounding knife is in place, and when the other magnetic block is opposite to the magnetic induction sensor, the grounding knife is in place; the T-type converter is located on the base, the input shaft of the T-type converter is connected to the driving device, the output shaft of the T-type converter is connected to the grounding knife shaft through a transmission mechanism, a reversing mechanism is provided between the input shaft and the output shaft of the T-type converter, the rotational motion output by the T-type converter is transmitted to the grounding knife shaft through the transmission mechanism, thereby driving the rotation of the grounding knife shaft, and the video monitoring device is fixed on the base for monitoring the image of the grounding knife.

2. The intelligent visual grounding device for railway according to claim 1, characterized in that: The reversing mechanism comprises a driving bevel gear and a driven bevel gear which are meshed with each other. The driving bevel gear is fixed on the input shaft, and the driven bevel gear is fixed on the output shaft.

3. The intelligent visual grounding device for railway according to claim 2, characterized in that: The transmission mechanism includes an active crank arm, a driven crank arm and a connecting rod, one end of the active crank arm is fixed on the output shaft, the other end of the active crank arm is hinged to one end of the connecting rod, one end of the driven crank arm is fixed on the grounding knife rotating shaft, and the other end of the driven crank arm is hinged to the other end of the connecting rod.

4. The intelligent visual grounding device for railway according to claim 1, characterized in that: The T-type converter is provided with a converter mounting plate, the converter mounting plate is fixedly connected to the base via bolts, and the magnetic induction sensor is fixed on the base.

5. The intelligent visual grounding device for railway according to claim 1, characterized in that: The grounding knife comprises a fixed plate, an insulating plate, a copper plate, a clamping spring, an insulating block and a copper block. The fixed plates are two parallel plates, and an insulating plate is arranged in parallel between the two fixed plates. Two copper plates are arranged in parallel between the two insulating plates. The fixed plate is in contact with the insulating plate, and the insulating plate is in contact with the copper plate. The insulating block and the copper block are located between the two copper plates and the insulating block and the copper block are arranged up and down. The insulating block is in contact with the copper plate, and the copper block is in contact with the copper plate. A screw is provided between the upper ends of the two copper plates, and nuts are fitted at both ends of the screw. A clamping spring is provided between the nut and the upper end of the corresponding copper plate. The lower ends of the fixed plate and the insulating plate are fixed on the rotating shaft of the grounding knife; the fixed plate, the insulating plate, the copper plate and the copper block, as well as the fixed plate, the insulating plate, the copper plate and the insulating block are fixedly connected by bolt assemblies.

6. The intelligent visual grounding device for railway according to claim 5, characterized in that: The fixed plate, insulating plate, copper plate, clamping spring, insulating block and copper block each have two groups, and each group of two fixed plates, two insulating plates, two copper plates, two clamping springs, one insulating block and one copper block constitute a grounding knife unit, and the two grounding knife units are fixedly connected together by a connecting pin.

7. The intelligent visual grounding device for railway according to claim 1, characterized in that: The end of the grounding knife shaft is provided with a mechanical limiter, and the mechanical limiter is provided with two limit blocks. The side wall of the base is provided with two baffle rods. The limit blocks are located on an arc with the grounding knife shaft as the center and the two baffle rods as end points. When one of the limit blocks contacts one of the baffle rods, it indicates that the grounding knife shaft is rotated to the closed position. When the other limit block contacts the other baffle rod, it indicates that the grounding knife shaft is rotated to the open position.

8. The intelligent visual grounding device for railway according to claim 5, characterized in that: The copper plate is insulated from the bolt assembly, and the copper plate is insulated from the grounding knife rotating shaft.

9. The intelligent visual grounding device for railway according to claim 1, characterized in that: The copper block is provided with a reserved mounting hole, and the reserved mounting hole is provided with a soft connector.

10. The intelligent visual grounding device for railway according to claim 5, characterized in that: The wiring board is provided with a limit block, and when the end face of the limit block contacts the side face of the upper end of the copper plate, it indicates that the grounding knife is in place.

Images