A kind of insulator string live water flushing device

Abstract

A live water flushing device for an insulator string comprises an unmanned aerial vehicle, a first shielding cover is installed on the periphery of the unmanned aerial vehicle, and a first support plate is connected to the bottom of the unmanned aerial vehicle. The positive effect of the present invention lies in: the live water flushing device for an insulator string described in the present invention comprises an unmanned aerial vehicle as a lifting power, a first shielding cover is installed on the periphery of the unmanned aerial vehicle, a second support plate and a third support plate are installed on the bottom of the unmanned aerial vehicle through an adjustable connection mechanism, and a water spraying mechanism for cleaning the insulator string is installed on the second support plate and the third support plate. Under the control of the water spraying control unit and the first electric valve, the rotating nozzle mechanism is used to spray and clean the insulator string at a specified position, replacing the traditional manual operation, and the insulator string can be effectively cleaned without power outage, which not only greatly reduces the labor intensity of the operator and improves the cleaning efficiency, but also avoids the risk of flashover during the cleaning process, and effectively ensures the personal safety of the operator.

Description

Technical Field

[0001] The invention relates to the technical field of power transmission line maintenance equipment, in particular to a live water flushing device for an insulator string. Background Art

[0002] Insulator strings are protective devices with fixing and operation needs in transmission lines. They are used to suspend conductors and insulate the conductors from poles and the ground. Due to long-term exposure to outdoor environments, dirt is easily accumulated on their surfaces, which will greatly reduce the insulation tolerance of the insulator strings over time, leading to power outages. To solve the above problems, insulator strings are regularly cleaned during maintenance. One method is to cut off the power to the transmission line and manually climb to the designated location for manual cleaning. The labor intensity is high and the cleaning efficiency is too low. Another method is to use a live flushing vehicle to flush the insulator strings. Operators need to wear protective equipment for water spray cleaning. During the cleaning process, transmission lines are prone to flashover, which poses a high risk to operators. How to reduce the cleaning risk while effectively improving the cleaning efficiency is a problem that needs to be solved urgently. Summary of the invention

[0003] The live water flushing device for an insulator string described in the present invention uses an unmanned aerial vehicle as a power source to drive a rotating nozzle mechanism to a designated position of the insulator string for water spraying and cleaning, thereby replacing traditional manual operations, reducing cleaning risks while effectively improving cleaning efficiency, and solving problems in the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problems is: the present invention discloses an insulator string live water flushing device, comprising an unmanned aerial vehicle, a first shielding cover is installed on the periphery of the unmanned aerial vehicle, a first support plate is connected to the bottom of the unmanned aerial vehicle, the first support plate is connected to the second support plate through an adjustable connection mechanism, a third support plate is arranged on the lower side of the second support plate, a second shielding cover is installed on the periphery of the second support plate and the third support plate, a water spray control unit and an air pump are installed on the second support plate, a water tank is installed on the third support plate, the air pump is connected to the water tank through an air pipe, a water pipe is also installed at the bottom of the water tank, a metal joint matching with the water pipe is provided on the second shielding cover, a first insulating rod arranged horizontally is installed on the metal joint, the water pipe is wound around the first insulating rod, a plurality of rotating nozzle mechanisms are arranged at one end of the first insulating rod away from the second shielding cover, the water pipe is connected to each rotating nozzle mechanism, a first electric valve is installed on the water pipe on the upper side of the third support plate, and the first electric valve is connected to the water spray control unit through a control circuit. The adjustable connection mechanism includes a plurality of second insulating rods connected to each other, each second insulating rod is equipped with an insulator sheet, the first shielding cover, the second shielding cover, the first support plate and the second support plate are provided with through holes matching the second insulating rods, screws are provided at both ends of the second insulating rods, first fixing nuts matching the screws are provided at both upper and lower sides of the first support plate, second fixing nuts matching the screws are provided at both upper and lower sides of the second support plate, and adjacent second insulating rods are connected by insulating connecting bolts. A signal receiving hole is provided at the bottom of the first shielding cover, a signal receiving antenna is provided at the bottom of the drone, and the signal receiving antenna extends out of the first shielding cover through the signal receiving hole. The first insulating rod is a telescopic rod, and a counterweight is provided at one end of the second shielding cover away from the first insulating rod. A recoil compensation mechanism is installed on the third support plate, the recoil compensation mechanism includes an airbag, an air pump is connected to the airbag through a pipeline, a second electric valve is installed on the air outlet of the airbag, and a water spray signal receiving antenna is also installed on the water spray control unit, and the water spray signal receiving antenna is connected to the second electric valve through a control circuit. Support frames are installed on both sides of the second support plate. A rotatable rotating bracket is installed at the end of the first insulating rod, and a rotating nozzle mechanism is arranged on the rotating bracket. The rotating nozzle mechanism includes a slot seat connected to the water pipe, and a rotatable nozzle pipe is installed in the slot seat by interference fit. A ball head is provided at one end of the nozzle pipe to match the slot seat, and a water spray channel connected to the water pipe is provided inside the nozzle pipe. Buffer mechanisms are installed on both sides of the support frame, and the buffer mechanism includes a horizontally arranged flat plate, and a plurality of through holes are provided on the flat plate, and a buffer rod is installed in each through hole, and a first rubber pad is provided at the bottom end of the buffer rod, and a first buffer spring is sleeved on the outer periphery of the buffer rod between the first rubber pad and the flat plate, and a second rubber pad is provided at the top end of the buffer rod, and a second buffer spring is sleeved on the outer periphery of the buffer rod between the second rubber pad and the flat plate.

[0005] The positive effect of the present invention is that an insulator string live water flushing device described in the present invention includes an unmanned aerial vehicle as a lifting power, a first shielding cover is installed on the outer periphery of the unmanned aerial vehicle, a second support plate and a third support plate are installed on the bottom of the unmanned aerial vehicle through an adjustable connecting mechanism, and a water spraying mechanism for cleaning the insulator string is installed on the second support plate and the third support plate. Under the control of the water spray control unit and the first electric valve, the rotating nozzle mechanism is used to spray and clean the insulator string at a specified position, replacing the traditional manual operation. The insulator string can be effectively cleaned without power outage, which not only greatly reduces the labor intensity of the operator and improves the cleaning efficiency, but also avoids the risk of flashover during the cleaning process, and effectively ensures the personal safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0007] Figure 2 It is a front view of the present invention;

[0008] Figure 3 yes Figure 2 A partial enlarged view of middle I;

[0009] Figure 4 yes Figure 2 A partial enlarged view of middle II;

[0010] Figure 5 yes Figure 2 A partial enlarged view of middle III;

[0011] Figure 6 It is a schematic diagram of the state where the drone is at the lower side of the device;

[0012] Figure 7 It is a structural schematic diagram of a buffer mechanism arranged on a support frame. DETAILED DESCRIPTION

[0013] The insulator string live water flushing device described in the present invention is as follows: Figure 1 and Figure 2 As shown, it includes a drone 1, which can provide power for the lifting and lowering of the entire device. A first shielding cover 2 is installed on the periphery of the drone 1, and the first shielding cover 2 can effectively prevent the electromagnetic interference generated by the power transmission line from affecting the flight of the drone.

[0014] like Figure 3 As shown, the bottom of the drone 1 is connected to a first support plate 3, which serves as a supporting connector and can be made of an insulating material, such as Figure 4As shown, the first support plate 3 is connected to the second support plate 15 through an adjustable connecting mechanism, a third support plate 25 is arranged on the lower side of the second support plate 15, and a second shielding cover 10 is installed on the periphery of the second support plate 15 and the third support plate 25. The arrangement of the second shielding cover 10 can protect the electronic components of the internal spray device.

[0015] In order to clean the insulator string, a water spray control unit 12 and an air pump 11 are installed on the second support plate 15, and a water tank 14 is installed on the third support plate 25. The water tank 14 is filled with spray water for cleaning the insulators. The air pump 11 is connected to the water tank 14 through an air pipe 16 to fill the water tank with air to increase the pressure in the water tank, ensure that the flushing water has sufficient pressure, and automatically start and stop according to the air pressure in the water tank 14.

[0016] A water pipe 19 is also installed at the bottom of the water tank 14. A metal joint 18 matching the water pipe 19 is provided on the second shielding cover 10. The water pipe 19 can pass through the second shielding cover 10 through the metal joint 18. A horizontally arranged first insulating rod 20 is installed on the metal joint 18. The water pipe 19 is wound around the first insulating rod 20. A plurality of rotating nozzle mechanisms 21 are provided at one end of the first insulating rod 20 away from the second shielding cover 10. The water pipe 19 is connected to each rotating nozzle mechanism 21. A first electric valve 17 is installed on the water pipe 19 on the upper side of the third support plate 25. The first electric valve 17 is connected to the water spray control unit 12 through a control circuit.

[0017] The water spray control unit 12 can control the switch of the first electric valve 17 to adjust the start and stop of the spray water. The metal joint 18 can reliably contact the waterway with the second shielding cover 10. When the sprayed water contacts the live equipment, the second shielding cover 10 and the spray water are at the same potential to protect the internal electronic equipment from electric shock. The first insulating rod 20 is made of insulating material to ensure that the electronic equipment in the spray device maintains a sufficient safety distance from the live equipment. The rotating nozzle mechanism 21 can adjust the angle according to the position requirements of the cleaning spray, so as to effectively clean the insulator string.

[0018] In order to achieve the corresponding adjustment of the position distance between the drone 1 and the water spraying device, the adjustable connection mechanism includes a plurality of second insulating rods 6 connected to each other, each second insulating rod 6 is equipped with an insulator sheet 7, and the first shielding cover 2, the second shielding cover 10, the first support plate 3 and the second support plate 15 are all provided with through holes that match the second insulating rods 6, and the second insulating rods 6 can be inserted into the two shielding covers. In order to achieve the connection between the second insulating rods 6 and the support plates, screws are provided at both ends of the second insulating rods 6, the upper and lower sides of the first support plate 3 are equipped with first fixing nuts 8 that match the screws, and the upper and lower sides of the second support plate 15 are equipped with second fixing nuts 26 that match the screws. Adjacent second insulating rods 6 are connected by insulating connecting bolts 9, and the first fixing nuts 8 and the second fixing nuts 26 can achieve a stable connection between the second insulating rods 6 between the support plates.

[0019] When the distance between the drone 1 and the water spraying device needs to be increased, the number of connections of the second insulating rod 6 can be increased, and when the distance between the drone 1 and the water spraying device needs to be reduced, the number of connections of the second insulating rod 6 can be reduced accordingly, thereby achieving the effect of distance adjustment. The insulator sheet 7 on the second insulating rod 6 can increase the creepage distance, allowing the device to perform cleaning operations in a safer environment.

[0020] The position of the drone 1 and the water spray device can be adjusted according to the type of equipment. When the live equipment is above the insulator, the drone 1 can be installed below the spray device to ensure that the drone 1 and the live equipment maintain a sufficiently safe distance. When the live equipment is below the insulator string, the drone 1 is installed above the spray device. Figure 2 As shown, the drone 1 is in a combined state where the upper part of the device drives the bottom water spray mechanism to perform vertical lifting. At this time, the second insulating rod 6 is connected between the bottom of the first shielding cover 2 and the top of the second shielding cover 10. In order to realize the corresponding shielding functions of each shielding cover, plugs are installed on the through holes at the top of the first shielding cover 2 and the bottom of the second shielding cover 10. Figure 6 As shown, the drone 1 can also be set at the bottom position of the overall device, so that the second insulating rod 6 is connected between the top of the first shielding cover 2 and the bottom of the second shielding cover 10, and the water spraying mechanism is located above the drone 1. At this time, plugs are installed on the through holes at the bottom of the first shielding cover 2 and the top of the second shielding cover 10.

[0021] In order to prevent the first shielding cover 2 from receiving the control signal of the internal drone 1, a signal receiving hole 5 is opened at the bottom of the first shielding cover 2, and a signal receiving antenna 4 is installed at the bottom of the drone 1. The signal receiving antenna 4 extends out of the first shielding cover 2 through the signal receiving hole 5 to enable ground personnel to operate and control the drone 1.

[0022] In order to facilitate the adjustment of the relative distance between the rotating nozzle mechanism 21 and the second shielding cover 10, the first insulating rod 20 is a telescopic rod. In order to adapt to the balance performance of the overall device after the length is adjusted, a counterweight block 23 is provided at the end of the second shielding cover 10 away from the first insulating rod 20. The weight of the counterweight block 23 can be adjusted according to the length distance of the first insulating rod 20 after extension and retraction, so that the overall device is in a relatively balanced state under the drive of the drone 1.

[0023] The live water flushing device for insulator strings of the present invention generates a recoil force on the device when the spray water is sprayed out during the cleaning of the insulator strings, which will have an impact on the drone 1 that is being cleaned in a hovering state, so that the cleaning operation of the insulator cannot be performed normally. To solve the above problem, a recoil force offsetting mechanism is installed on the third support plate 25, and the recoil force offsetting mechanism includes an airbag 22, an air pump 11 is connected to the airbag 22 through a pipeline, and the airbag 22 is filled with compressed gas. A second electric valve 27 is installed on the air outlet of the airbag 22, and a water spray signal receiving antenna 13 is also installed on the water spray control unit 12, and the water spray signal receiving antenna 13 is connected to the second electric valve 27 through a control circuit. When the water spray signal receiving antenna 13 receives the water spray signal, it controls the second electric valve 27 to open synchronously, and the gas in the airbag 22 is discharged immediately, which plays a role in buffering the recoil force, and ensures that the drone 1 performs the cleaning operation of the insulator in a hovering state.

[0024] Furthermore, in order to facilitate the overall device to land more stably after the cleaning operation is completed, support frames 24 are installed on both sides of the second support plate 15, and the support frames 24 can be disassembled and assembled to facilitate state change and storage.

[0025] Furthermore, in order to prevent the whole device from falling to the ground due to improper operation when it is lowered to the ground, Figure 7 As shown, a buffer mechanism is installed on both sides of the support frame 24, and the buffer mechanism includes a horizontally arranged flat plate 33, and a plurality of through holes are opened on the flat plate 33, and a buffer rod 34 is installed in each through hole, and a first rubber pad 35 is provided at the bottom end of the buffer rod 34, and a first buffer spring 36 is sleeved on the outer periphery of the buffer rod 34 between the first rubber pad 35 and the flat plate 33, and a second rubber pad 37 is provided at the top end of the buffer rod 34, and a second buffer spring 38 is sleeved on the outer periphery of the buffer rod 34 between the second rubber pad 37 and the flat plate 33. When the whole device is landing, the first rubber pad 35 contacts the ground first, and under the joint buffering action of the first buffer spring 36 and the second buffer spring 38, the hard contact between the whole device and the ground is avoided, which can effectively improve the service life of the whole device.

[0026] Furthermore, in order to facilitate the rotating nozzle mechanism 21 to clean the insulator in a more comprehensive manner, a rotatable rotating bracket 28 is installed at the end of the first insulating rod 20, and a rotating nozzle mechanism 21 is arranged on the rotating bracket 28. Figure 5 As shown, the rotating nozzle mechanism 21 includes a slot seat 29 connected to the water pipe 19, and a rotatable nozzle pipe 30 is installed in the slot seat 29 with an interference fit. A ball head 31 matching with the slot seat 29 is provided at one end of the nozzle pipe 30, and a water spraying channel 32 connected to the water pipe 19 is opened inside the nozzle pipe 30. The nozzle pipe 30 can be rotated and adjusted relative to the slot seat 29 to realize the function of spraying water in different directions, thereby completing the all-round cleaning operation of the insulator.

[0027] The technical solution of the present invention is not limited to the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. A live water flushing device for an insulator string, characterized in that: The invention comprises a drone (1), wherein a first shielding cover (2) is installed on the periphery of the drone (1), a first support plate (3) is connected to the bottom of the drone (1), the first support plate (3) is connected to a second support plate (15) via an adjustable connection mechanism, a third support plate (25) is arranged on the lower side of the second support plate (15), a second shielding cover (10) is installed on the periphery of the second support plate (15) and the third support plate (25), a water spray control unit (12) and an air pump (11) are installed on the second support plate (15), a water tank (14) is installed on the third support plate (25), the air pump (11) is connected to the water tank (14) via an air pipe (16), and the water A water pipe (19) is also installed at the bottom of the box (14); a metal joint (18) matching the water pipe (19) is provided on the second shielding cover (10); a first insulating rod (20) arranged horizontally is installed on the metal joint (18); the water pipe (19) is wound around the first insulating rod (20); a plurality of rotating nozzle mechanisms (21) are provided at one end of the first insulating rod (20) away from the second shielding cover (10); the water pipe (19) is connected to each rotating nozzle mechanism (21); a first electric valve (17) is installed on the water pipe (19) on the upper side of the third support plate (25); and the first electric valve (17) is connected to the water spray control unit (12) through a control circuit; The adjustable connection mechanism comprises a plurality of second insulating rods (6) connected to each other, each second insulating rod (6) being mounted with an insulator sheet (7), the first shielding cover (2), the second shielding cover (10), the first support plate (3) and the second support plate (15) being provided with through holes matching the second insulating rods (6), screws being provided at both ends of the second insulating rods (6), first fixing nuts (8) matching the screws being mounted on both upper and lower sides of the first support plate (3), second fixing nuts (26) matching the screws being mounted on both upper and lower sides of the second support plate (15), and adjacent second insulating rods (6) being connected via insulating connection bolts (9); A rotatable rotating bracket (28) is mounted at the end of the first insulating rod (20), and a rotating nozzle mechanism (21) is arranged on the rotating bracket (28). The rotating nozzle mechanism (21) comprises a slot seat (29) connected to the water pipe (19), a rotatable nozzle pipe (30) is installed in the slot seat (29) by interference fit, one end of the nozzle pipe (30) is provided with a ball head (31) matched with the slot seat (29), and a water spray channel (32) connected to the water pipe (19) is opened inside the nozzle pipe (30).

2. The live water flushing device for insulator string according to claim 1, characterized in that: A signal receiving hole (5) is provided at the bottom of the first shielding cover (2), a signal receiving antenna (4) is installed at the bottom of the drone (1), and the signal receiving antenna (4) extends out of the first shielding cover (2) through the signal receiving hole (5).

3. The live water flushing device for insulator string according to claim 1, characterized in that: The first insulating rod (20) is a telescopic rod, and a counterweight (23) is provided at one end of the second shielding cover (10) away from the first insulating rod (20).

4. The live water flushing device for insulator string according to claim 1, characterized in that: A recoil-offsetting mechanism is mounted on the third support plate (25), the recoil-offsetting mechanism comprising an airbag (22), the air pump (11) being connected to the airbag (22) via a pipeline, a second electric valve (27) being mounted on an air outlet of the airbag (22), and a water spray signal receiving antenna (13) being mounted on the water spray control unit (12), the water spray signal receiving antenna (13) being connected to the second electric valve (27) via a control line.

5. The live water flushing device for insulator string according to claim 1, characterized in that: Support frames (24) are installed on both sides of the second support plate (15).

6. The live water flushing device for insulator string according to claim 5, characterized in that: A buffer mechanism is installed on both sides of the support frame (24), the buffer mechanism comprising a horizontally arranged flat plate (33), a plurality of through holes being opened on the flat plate (33), a buffer rod (34) being installed in each through hole, a first rubber pad (35) being provided at the bottom end of the buffer rod (34), a first buffer spring (36) being sleeved on the outer periphery of the buffer rod (34) between the first rubber pad (35) and the flat plate (33), a second rubber pad (37) being provided at the top end of the buffer rod (34), and a second buffer spring (38) being sleeved on the outer periphery of the buffer rod (34) between the second rubber pad (37) and the flat plate (33).

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