Lightning protection monitoring and alarming device for mobile power supply vehicle and monitoring and alarming method of lightning protection monitoring and alarming device

Abstract

The invention relates to a mobile power supply vehicle lightning protection monitoring alarm device, and belongs to the technical field of lightning arrester monitoring, the mobile power supply vehicle lightning protection monitoring alarm device comprises a lightning rod arranged above a mobile power supply vehicle body, two groups of lightning arresters and a grounding bar, the lightning arresters and the grounding bar are arranged in the mobile power supply vehicle body, and the lightning arresters are electrically connected with the lightning rod. The lightning arrester is fixed on the grounding bar, one side of the lightning arrester is provided with a connecting mechanism, one side of the lightning arrester is provided with a detection assembly and an alarm mechanism, the detection assembly is used for detecting the condition of the lightning arrester, and the alarm mechanism is used for giving an alarm after detecting that the lightning arrester is damaged; the detection assembly comprises a detection mechanism and a high-voltage peak voltmeter, and the high-voltage peak voltmeter is connected with the lightning arrester in parallel; the detection mechanism is arranged, the lightning arrester after lightning stroke can be automatically detected, the damaged lightning arrester is disconnected and automatically adjusted to another standby lightning arrester, and the lightning arrester is simple in structure, convenient to use and practical.

Description

Technical Field

[0001] The invention belongs to the technical field of lightning arrester monitoring, and in particular relates to a lightning protection monitoring and alarm device for a mobile power supply vehicle and a monitoring and alarm method thereof. Background Art

[0002] In the use of traditional zinc oxide lightning arresters, the zinc oxide resistor relies on its nonlinear volt-ampere characteristics to keep the current extremely small under normal operating voltage, and quickly reduce the resistance under the action of lightning overvoltage, discharge the overvoltage energy, and effectively protect the power equipment. However, when the zinc oxide resistor deteriorates or breaks down, the lightning arrester will not be able to restore the high resistance state, causing the external gap arc to continue burning, which in turn causes safety hazards such as ground faults and wire burnout. In addition, since the appearance of the zinc oxide lightning arrester does not change when it is damaged, it is easy to be ignored by maintenance personnel. The lightning arrester damaged by lightning cannot provide protection for the next lightning strike, causing damage to electrical equipment.

[0003] Chinese patent number CN207114653U, an online early warning monitoring system for lightning arresters, includes an intelligent monitoring module for lightning arresters, an environmental monitoring host, an alarm unit, and a remote monitoring unit, etc. However, when the lightning arrester is detected to be damaged, the patent can only provide an early warning, and the lightning arrester cannot be replaced in time, which is inconvenient to use. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a lightning protection monitoring and alarm device for a mobile power supply vehicle to solve the drawback of inconvenient maintenance in the prior art.

[0005] To solve the above problems, the technical solution adopted by the present invention is: A lightning protection monitoring and alarm device for a mobile power supply vehicle comprises a lightning rod arranged above a mobile power supply vehicle body and a lightning arrester and a grounding bar arranged inside the mobile power supply vehicle body, the lightning arrester is in two groups, the lightning arrester is electrically connected to the lightning rod, the lightning arrester is fixed on the grounding bar, a connecting mechanism is arranged on one side of the lightning arrester, a detection component and an alarm mechanism are arranged on one side of the lightning arrester, the detection component is used to detect the condition of the lightning arrester, and the alarm mechanism is used to alarm after detecting that the lightning arrester is damaged; the connecting mechanism comprises a rotating shaft, a cross bar is fixedly arranged on the upper end of the rotating shaft, an attraction mechanism is fixedly arranged on the end of the cross bar, the attraction mechanism is abutted and connected with the lightning arrester, the detection component comprises a detection mechanism and a high voltage peak voltmeter, and the high voltage peak voltmeter is connected in parallel with the lightning arrester; the detection mechanism is electrically connected to the connecting mechanism, the alarm mechanism and the high voltage peak voltmeter respectively.

[0006] According to the above technical solution, it is further preferred that the detection mechanism includes a screw module, a first battery group, an ammeter, a voltmeter and a controller, a probe is provided on the screw module slider, the ammeter is connected in series between the first battery group and the ground bus, the voltmeter is connected in parallel between the first battery group and the ground bus, the screw module, the first battery group, the ammeter and the voltmeter are electrically connected to the controller respectively, and the controller is electrically connected to the alarm mechanism.

[0007] Preferably, the alarm mechanism includes an audible and visual alarm, a communication module, a second battery pack and an alarm switch, the audible and visual alarm, the communication module and the alarm switch are electrically connected to the second battery pack respectively, and the alarm switch is electrically connected to the controller.

[0008] Preferably, the communication module is an Air202 module, which is used to send alarm information to the administrator.

[0009] Preferably, the suction mechanism includes an electromagnet, a static contact, a moving contact and a machine head, the static contact is electrically connected to the arrester terminal, the moving contact is electrically connected to the lightning rod, the electromagnet is cooperatively connected to the machine head, the moving contact is fixedly connected to the machine head, and the electromagnet is electrically connected to the detection mechanism.

[0010] Preferably, a cover is provided on the outer side of the electromagnet, a locking mechanism is provided on the cover, and the locking mechanism is cooperatively connected with the machine head.

[0011] Preferably, the locking mechanism includes a buckle pin, which is slidably connected to the cover body, and a driving mechanism is connected to the end of the buckle pin. A spring is sleeved on the buckle pin, and the spring is arranged between the cover body and the driving mechanism. The driving mechanism is electrically connected to the detection mechanism.

[0012] Preferably, the electromagnet is a permanent magnet electromagnet.

[0013] Preferably, the driving mechanism is an electromagnet.

[0014] Preferably, the lightning rod includes a needle body and a U-shaped base, the U-shaped base is fixedly connected to the mobile power vehicle body, the U-shaped base is provided with a pin shaft, the needle body is rotatably connected to the U-shaped base along the pin shaft, the U-shaped base is provided with a pin hole in the vertical direction and the horizontal direction respectively, the two pin holes are equidistant from the pin shaft, the needle body is provided with a transverse hole, a locking pin is provided in the transverse hole, and the locking pin is used to fix the needle body and the pin hole.

[0015] The present invention also provides a mobile power vehicle lightning protection monitoring and alarm method, the monitoring and alarm method comprising the following steps: Step s1, detecting whether the lightning arrester is struck by lightning by a high voltage peak voltage meter; Step s2: after the high voltage peak voltage meter detects that the lightning arrester is struck by lightning, the detection mechanism is started to perform damage detection on the lightning arrester struck by lightning; Step s3: After the detection mechanism detects that the arrester is damaged, the alarm mechanism is activated to send an alarm message to the maintenance personnel; Step s4: after the detection mechanism detects that the arrester is damaged, the connection mechanism is started to disconnect the arrester at one end and connect the arrester at the other end; Step s5, restart the detection mechanism to perform damage detection on the lightning arrester on the other side; Step s6: If the arrester on the other side is detected to be normal, it will operate normally. If it is detected that the arrester on the other side is also damaged, the alarm mechanism will be activated to send an alarm message to the maintenance personnel.

[0016] Preferably, in step s2, after the lightning arrester is struck by lightning, the high voltage peak voltmeter detects a high voltage, and it is determined that the lightning arrester has been struck by lightning. The detection mechanism is started to detect damage to the lightning arrester, the screw module is started, and the probe is controlled to abut against both ends of the lightning arrester. The high resistance performance of both ends of the lightning arrester is detected by the ammeter and the voltmeter. If the ammeter detects the current value, it is determined that the lightning arrester is damaged by lightning. If the ammeter does not detect the current value and the voltmeter detects the voltage value, it is determined that the lightning arrester is not damaged by lightning.

[0017] Preferably, in step s4, after detecting that the arrester is damaged, the arrester at one end is disconnected by rotating the shaft, and the electromagnet of the attraction mechanism is disconnected from the arrester at one end. After rotating the shaft, the electromagnet on the other side of the attraction mechanism is attracted to the arrester on the other side, and the detection mechanism is restarted at the same time, the probe is abutted against both ends of the arrester at the attraction end, and the high-resistance performance of both ends of the arrester is detected by an ammeter and a voltmeter. If the ammeter detects the current value, it is determined that the arrester is damaged by lightning, and an alarm message is generated to the maintenance personnel. If the ammeter does not detect the current value and the voltmeter detects the voltage value, it is determined that the arrester is not damaged, and the attraction arrester is put into operation normally.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a lightning protection monitoring and alarm device for a mobile power supply vehicle. A detection mechanism is provided in the present invention, which can automatically detect the lightning arrester after being struck by lightning and judge whether it is good or bad. When it is detected that the lightning arrester is damaged, it automatically adjusts to another spare lightning arrester and sends an alarm message to the maintenance personnel to replace the damaged lightning arrester in time. The present invention has a simple structure and is convenient and practical.

[0019] 2. The present invention provides a lightning protection monitoring and alarm device for a mobile power supply vehicle. The lightning rod in the present invention adopts an internal foldable mechanism, which is convenient for the mobile power supply vehicle to erect the lightning rod when supplying power, and fold the lightning rod during movement, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the external structure of the device of the present invention; Figure 2 It is a schematic diagram of the internal structure of the device of the present invention; Figure 3 It is a schematic diagram of the top view of the lightning arrester of the device of the present invention; Figure 4 This is a schematic diagram of the locking mechanism structure of the device of the present invention; Figure 5 It is a schematic diagram of the structure of the alarm mechanism of the device of the present invention.

[0021] In the figure: 1. mobile power vehicle body, 2. lightning rod, 21. needle body, 22. U-shaped base, 23. pin shaft, 24. pin hole, 25. horizontal hole, 26. locking pin, 3. lightning arrester, 4. grounding bar, 5. connecting mechanism, 6. detection component, 7. alarm mechanism, 71. sound and light alarm, 72. communication module, 73. second battery pack, 74. alarm switch, 8. rotating shaft, 9. cross bar, 10. suction mechanism, 101 electromagnet, 102. static contact, 103. moving contact, 104. machine head, 105. cover body, 106. locking mechanism, 107. buckle pin, 108. driving mechanism, 109. spring, 11. detection mechanism, 110. screw module, 111. first battery pack, 112. controller, 113. ammeter, 114. voltmeter, 115. probe, 12. high voltage peak voltmeter. DETAILED DESCRIPTION

[0022] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "first", "second", "middle end" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present disclosure, and do not specifically refer to any part or element in the present disclosure and should not be understood as limitations on the present disclosure.

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the protection scope of the present invention.

[0024] like Figure 1 to Figure 5As shown, the present invention provides an embodiment of a mobile power vehicle lightning protection monitoring and alarm device, including a lightning rod 2 arranged above the mobile power vehicle body 1 and a lightning arrester 3 and a grounding bar 4 arranged inside the mobile power vehicle body 1, the lightning arrester 3 is in two groups, one group is in operation, and the other group is in standby state, the lightning arrester 3 is electrically connected to the lightning rod 2, a short-circuit bar is arranged above the two groups of lightning arresters 3, the short-circuit bar is electrically connected to the lightning rod 2, the lightning arrester 3 is fixed on the grounding bar 4, and the lower ends of the two groups of lightning arresters 3 are fixed to the grounding bar 4 and have good conductivity. A connecting mechanism 5 is provided on one side of the lightning arrester 3, and the connecting mechanism 5 is connected to the short-circuit bar on the upper side of the lightning arrester 3 and has good conductivity. The lightning rod 2 and the short-circuit bar can be connected with a soft wire to facilitate the connection and grounding of the lightning rod 2. A detection component 6 and an alarm mechanism 7 are provided on one side of the lightning arrester 3, the detection component 6 is used to detect the condition of the lightning arrester, and the alarm mechanism 7 is used to alarm after detecting that the lightning arrester 3 is damaged; the connecting mechanism 5 includes a rotating shaft 8, a cross bar 9 is fixedly provided on the upper end of the rotating shaft 8, and a suction mechanism 10 is fixedly provided on the end of the cross bar 9, and the suction mechanism 10 is abutted and connected with the lightning arrester 3, the detection component 6 includes a detection mechanism 11 and a high voltage peak voltmeter 12, and the high voltage peak voltmeter 12 is connected in parallel with the lightning arrester 3; the detection mechanism 11 is electrically connected to the connecting mechanism 5, the alarm mechanism 7 and the high voltage peak voltmeter 12 respectively. In the embodiment of the present invention, after the high voltage peak voltmeter 12 detects that the lightning arrester 3 generates a high voltage, the lightning arrester 3 has been struck by lightning. At this time, the control detection mechanism 11 performs lightning damage detection on the lightning arrester. When it is detected that the lightning arrester 3 is damaged by lightning, the connecting mechanism 5 is started to rotate, disconnected from the damaged lightning arrester 3, rotated to the lightning arrester on the other side, connected to the spare lightning arrester 3, and the detection mechanism is started again to detect damage to the closed lightning arrester 3. If the lightning arrester operates normally, the lightning arrester is replaced. If it is abnormal, an alarm message is sent to the maintenance personnel to remind the staff to repair it in time.

[0025] The detection mechanism 11 includes a screw module 110, a first battery pack 111, an ammeter 113, a voltmeter 114 and a controller 112. A probe 115 is provided on the slider of the screw module 110. The ammeter 113 is connected in series between the first battery pack 111 and the grounding bar 4. The voltmeter 114 is connected in parallel between the first battery pack 111 and the grounding bar 4. The screw module 110, the first battery pack 111, the ammeter 113, and the voltmeter 114 are electrically connected to the controller 112 respectively, and the controller 112 is electrically connected to the alarm mechanism 7. In the embodiment of the present invention, the detection mechanism 11 is arranged on one side of the arrester 3, and the slider on the screw module 110 can slide freely, and is used to drive the probe 115 to contact or disengage with the two ends of the arrester 3. When the probe 115 contacts the two ends of the arrester 3, the ammeter 113 is connected between the first battery pack 111 and the grounding bar 4. If the arrester 3 is damaged by the detection, it is in a high-resistance state, and the value of the ammeter 113 is zero or a very small value. The quality of the arrester 3 can be judged by the reading of the ammeter 113. When the value of the ammeter 113 is a large value, it is judged that the arrester 3 is damaged by lightning, and an alarm message is sent to the maintenance personnel to remind the maintenance personnel to replace the arrester in time. When the value of the ammeter 113 is zero or a very small value, the value of the voltmeter 114 is a normal value at this time, and the arrester 3 is judged to be in a high-resistance state at this time, which is a good state, and the lightning protection operation can continue. If it is damaged by lightning, the spare arrester needs to be put into operation.

[0026] The alarm mechanism 7 includes an audible and visual alarm 71, a communication module 72, a second battery pack 73 and an alarm switch 74. The audible and visual alarm 71, the communication module 72 and the alarm switch 74 are electrically connected to the second battery pack 73 respectively, and the alarm switch 74 is electrically connected to the controller 112. The alarm mechanism is used to send alarm information to maintenance personnel. In the embodiment of the present invention, the communication module adopts a wireless Internet of Things module, which has the characteristics of low cost, good communication signal, and timely alarm signal. Specifically, the communication module 72 adopts an Air202 module, which is used to send alarm information to the administrator.

[0027] The suction mechanism 10 includes an electromagnet 101, a static contact 102, a moving contact 103 and a head 104, wherein the static contact 102 is electrically connected to the terminal of the arrester 3, the moving contact 103 is electrically connected to the lightning rod 2, the electromagnet 101 is matched and connected to the head 104, the moving contact 103 is fixedly connected to the head 104, and the electromagnet 101 is electrically connected to the detection mechanism 11. In order to better make the moving contact 103 and the static contact 102 contact well, and on the other hand to reduce the suction energy consumption of the electromagnet 101, the electromagnet 101 adopts a permanent magnet electromagnet, and the electromagnet 101 moves when it is sucked in and out of the suction. In the embodiment of the present invention, the electromagnet 101 adopts DC control, which can be positive and negative control, and the energization directions of the electromagnets on both sides are just opposite, ensuring that the electromagnet on one side is the suction force, and the electromagnet on the other side is the disconnection repulsion force. The control method of the electromagnet is the prior art, and the embodiment of the present invention will not be described in detail. In order to increase the suction force of the moving and static contacts, a cover body 105 is provided on the outside of the electromagnet 101, and a locking mechanism 106 is provided on the cover body 105 to enhance the suction force of the moving and static contacts. The locking mechanism 106 is connected with the machine head 104. The locking mechanism 106 includes a buckle pin 107, and the buckle pin 107 is plug-in and slidably connected with the cover body 105. In the embodiment of the present invention, the end face of the buckle pin 107 is an inclined surface, which is used to increase the squeezing force of the buckle pin 107 on the moving contact 103. A driving mechanism 108 is connected to the end of the buckle pin 107, and a spring 109 is sleeved on the buckle pin 107. The spring 109 is arranged between the cover body 105 and the driving mechanism 108, and the spring 109 is used to maintain the movement trend of the buckle pin 107 toward the moving contact 103. The driving mechanism 108 is electrically connected to the detection mechanism 11.

[0028] The driving mechanism 108 is an electromagnet.

[0029] The lightning rod 2 includes a needle body 21 and a U-shaped base 22, the U-shaped base 22 is fixedly connected to the mobile power vehicle body 1, a pin shaft 23 is provided on the U-shaped base 22, the needle body 21 is rotatably connected to the U-shaped base 22 along the pin shaft 23, and a pin hole 24 is respectively provided on the U-shaped base 22 in the vertical direction and the horizontal direction, and the two pin holes 24 are at an equal distance from the pin shaft 23. A transverse hole 25 is provided on the needle body 21, and a locking pin 26 is provided in the transverse hole 25, and the locking pin 26 is used to fix the needle body 21 and the pin hole 24. In the embodiment of the present invention, when the mobile power vehicle is in power supply operation, the lightning rod 2 is erected, and the lightning rod is vertically fixed by the pin hole 24 and the pin shaft 23 in the vertical direction. When the mobile power vehicle is in a non-powered mobile state, the lightning rod is horizontally fixed by the pin hole 24 and the pin shaft 23 in the horizontal direction through the locking pin 26, so as to facilitate the mobile transportation of the mobile power vehicle.

[0030] The present invention also provides an embodiment of a mobile power vehicle lightning protection monitoring and alarm method, the monitoring and alarm method is applied to a mobile power vehicle lightning protection monitoring and alarm device, the monitoring and alarm method comprises the following steps: Step s1, detecting whether the lightning arrester 3 is struck by lightning by means of a high voltage peak voltage meter 12; Step s2, after the high voltage peak voltage meter 12 detects that the lightning arrester 3 is struck by lightning, the detection mechanism 11 is started to perform damage detection on the lightning arrester 3 struck by lightning; Step s3, after the detection mechanism 11 detects that the arrester 3 is damaged, the alarm mechanism 7 is activated to send an alarm message to the maintenance personnel; Step s4, after the detection mechanism 11 detects that the arrester 3 is damaged, the connection mechanism 5 is started to disconnect the arrester 3 at one end and connect the arrester 3 at the other end; Step s5, restarting the detection mechanism 11 to perform damage detection on the lightning arrester 3 on the other side; Step s6: If the arrester 3 on the other side is detected to be normal, it will operate normally; if the arrester 3 on the other side is detected to be damaged, the alarm mechanism 7 will be activated to send an alarm message to the maintenance personnel; In step s2, after the lightning arrester 3 is struck by lightning, the high voltage peak voltmeter detects a high voltage, and it is determined that the lightning arrester 3 is struck by lightning. The detection mechanism 11 is started to detect damage to the lightning arrester 3, and the screw module 110 is started to control the probe 115 to abut against both ends of the lightning arrester 3. The high resistance performance of both ends of the lightning arrester 3 is detected by the ammeter 113 and the voltmeter 114. If the ammeter 113 detects the current value, it is determined that the lightning arrester 3 is damaged by lightning. If the ammeter 113 does not detect the current value and the voltmeter 114 detects the voltage value, it is determined that the lightning arrester 3 is not damaged by lightning.

[0031] Step s4, after detecting that the lightning arrester 3 is damaged, the lightning arrester 3 at one end is disconnected by rotating the rotating shaft 8, and the electromagnet 101 of the attraction mechanism 10 is disconnected from the lightning arrester 3 at one end. After rotating the rotating shaft 8, the electromagnet 101 on the other side of the attraction mechanism 10 is attracted to the lightning arrester 3 on the other side, and the detection mechanism 11 is restarted at the same time, and the probe 115 is abutted against the two ends of the lightning arrester 3 at the attraction end, and the high resistance performance of the two ends of the lightning arrester 3 is detected by the ammeter 113 and the voltmeter 114. If the ammeter 113 detects the current value, it is determined that the lightning arrester 3 is damaged by lightning, and an alarm message is generated to the maintenance personnel. If the ammeter 113 does not detect the current value and the voltmeter 114 detects the voltage value, it is determined that the lightning arrester 3 is not damaged, and the attraction lightning arrester 3 is put into operation normally.

[0032] Of course, the above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A mobile power vehicle lightning protection monitoring and alarm device, characterized in that: The invention comprises a lightning rod (2) arranged above a mobile power vehicle body (1) and a lightning arrester (3) and a grounding bar (4) arranged inside the mobile power vehicle body (1), wherein the lightning arrester (3) is divided into two groups, the lightning arrester (3) is electrically connected to the lightning rod (2), the lightning arrester (3) is fixed on the grounding bar (4), a connecting mechanism (5) is arranged on one side of the lightning arrester (3), and a detection component (6) and an alarm mechanism (7) are arranged on one side of the lightning arrester (3), wherein the detection component (6) is used to detect the status of the lightning arrester, and the alarm mechanism (7) is used to detect the status of the lightning arrester ( 3) alarm after damage; the connecting mechanism (5) comprises a rotating shaft (8), a cross bar (9) is fixedly provided on the upper end of the rotating shaft (8), an attraction mechanism (10) is fixedly provided on the end of the cross bar (9), the attraction mechanism (10) is abutted and connected with the lightning arrester (3), the detection component (6) comprises a detection mechanism (11) and a high voltage peak voltmeter (12), the high voltage peak voltmeter (12) is connected in parallel with the lightning arrester (3); the detection mechanism (11) is electrically connected to the connecting mechanism (5), the alarm mechanism (7) and the high voltage peak voltmeter (12), respectively.

2. According to claim 1, a mobile power vehicle lightning protection monitoring and alarm device is characterized in that: The detection mechanism (11) comprises a screw module (110), a first battery group (111), an ammeter (113), a voltmeter (114) and a controller (112); a probe (115) is provided on a slider of the screw module (110); the ammeter (113) is connected in series between the first battery group (111) and a grounding bar (4); the voltmeter (114) is connected in parallel between the first battery group (111) and the grounding bar (4); the screw module (110), the first battery group (111), the ammeter (113) and the voltmeter (114) are respectively electrically connected to the controller (112); and the controller (112) is electrically connected to an alarm mechanism (7).

3. A mobile power vehicle lightning protection monitoring and alarm device according to claim 2, characterized in that: The alarm mechanism (7) comprises an audible and visual alarm (71), a communication module (72), a second battery pack (73) and an alarm switch (74); the audible and visual alarm (71), the communication module (72) and the alarm switch (74) are respectively electrically connected to the second battery pack (73); and the alarm switch (74) is electrically connected to the controller (112).

4. A mobile power vehicle lightning protection monitoring and alarm device according to claim 3, characterized in that: The communication module (72) is an Air202 module, which is used to send alarm information to the administrator.

5. The mobile power vehicle lightning protection monitoring and alarm device according to claim 1 is characterized by: The pull-in mechanism (10) comprises an electromagnet (101), a static contact (102), a moving contact (103) and a machine head (104); the static contact (102) is electrically connected to a terminal of a lightning arrester (3); the moving contact (103) is electrically connected to a lightning rod (2); the electromagnet (101) is cooperatively connected to the machine head (104); the moving contact (103) is fixedly connected to the machine head (104); and the electromagnet (101) is electrically connected to a detection mechanism (11).

6. A mobile power vehicle lightning protection monitoring and alarm device according to claim 5, characterized in that: A cover body (105) is arranged outside the electromagnet (101), a locking mechanism (106) is arranged on the cover body (105), and the locking mechanism (106) is cooperatively connected with the machine head (104).

7. A mobile power vehicle lightning protection monitoring and alarm device according to claim 6, characterized in that: The locking mechanism (106) comprises a locking pin (107), the locking pin (107) being slidably connected to the cover body (105), the end of the locking pin (107) being connected to a driving mechanism (108), the locking pin (107) being sleeved with a spring (109), the spring (109) being arranged between the cover body (105) and the driving mechanism (108), the driving mechanism (108) being electrically connected to the detection mechanism (11), and the driving mechanism (108) being an electromagnet.

8. The mobile power vehicle lightning protection monitoring and alarm device according to claim 1, characterized in that: The lightning rod (2) comprises a needle body (21) and a U-shaped base (22), wherein the U-shaped base (22) is fixedly connected to the mobile power vehicle body (1), the U-shaped base (22) is provided with a pin shaft (23), the needle body (21) is rotatably connected to the U-shaped base (22) along the pin shaft (23), the U-shaped base (22) is provided with a pin hole (24) in the vertical direction and the horizontal direction respectively, the two pin holes (24) are equidistant from the pin shaft (23), the needle body (21) is provided with a transverse hole (25), a locking pin (26) is provided in the transverse hole (25), and the locking pin (26) is used to fix the needle body (21) and the pin hole (24).

9. The mobile power vehicle lightning protection monitoring and alarm device according to claim 1, characterized in that: The electromagnet (101) is a permanent magnet electromagnet.

10. A lightning protection monitoring and alarm method for a mobile power vehicle, characterized in that: The monitoring alarm method comprises the following steps: Step s1, detecting whether the lightning arrester (3) is struck by lightning by using a high voltage peak voltage meter (12); Step s2, after the high voltage peak voltage meter (12) detects that the lightning arrester (3) is struck by lightning, the detection mechanism (11) is started to perform damage detection on the lightning arrester (3) struck by lightning; Step s3, after the detection mechanism (11) detects that the lightning arrester (3) is damaged, the alarm mechanism (7) is activated to send an alarm message to the maintenance personnel; Step s4, after the detection mechanism (11) detects that the lightning arrester (3) is damaged, the connection mechanism (5) is started to disconnect the lightning arrester (3) at one end and connect the lightning arrester (3) at the other end; Step s5, restarting the detection mechanism (11) to perform damage detection on the lightning arrester (3) on the other side; Step s6: If the lightning arrester (3) on the other side is detected to be normal, then the system operates normally; if the lightning arrester (3) on the other side is detected to be damaged, then the alarm mechanism (7) is activated to send an alarm message to the maintenance personnel; In step s2, after the lightning arrester (3) is struck by lightning, the high voltage peak voltage meter detects a high voltage, and it is determined that the lightning arrester (3) is struck by lightning. The detection mechanism (11) is started to detect damage to the lightning arrester (3), and the screw rod module (110) is started to control the probe (115) to abut against both ends of the lightning arrester (3). The high resistance performance of both ends of the lightning arrester (3) is detected by the ammeter (113) and the voltmeter (114). If the ammeter (113) detects a current value, it is determined that the lightning arrester (3) is damaged by lightning. If the ammeter (113) does not detect a current value and the voltmeter (114) detects a voltage value, it is determined that the lightning arrester (3) is not damaged by lightning. Step s4, after detecting that the arrester (3) is damaged, the arrester (3) at one end is disconnected by rotating the rotating shaft (8), and the electromagnet (101) of the attraction mechanism (10) is disconnected from the arrester (3) at one end. After rotating the rotating shaft (8), the electromagnet (101) on the other side of the attraction mechanism (10) is attracted to the arrester (3) on the other side, and the detection mechanism (11) is started again, and the probe (115) is brought into contact with both ends of the arrester (3) at the attraction end. The high resistance performance of both ends of the arrester (3) is detected by the ammeter (113) and the voltmeter (114). If the ammeter (113) detects a current value, it is determined that the arrester (3) is damaged by lightning, and an alarm message is generated to the maintenance personnel. If the ammeter (113) does not detect a current value and the voltmeter (114) detects a voltage value, it is determined that the arrester (3) is not damaged, and the attraction arrester (3) is put into operation normally.

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