A transmission line fault diagnosis device and its use method

Abstract

A power transmission line fault diagnosis device and its use method belong to the field of power transmission line inspection equipment. It comprises a drone and a protective device; the protective device comprises a connecting rod and two limiting rods; one end of the connecting rod is mounted on a connecting frame at the lower end of the drone through a perforation; the upper end of one of the limiting rods is connected to the lower end of the connecting rod via an arc rod; fixing rods are provided on the opposite surfaces of the two limiting rods, and a connecting piece is fixedly connected between the fixing rods. The present invention can not only prevent drones from losing control and falling during field operations, making them difficult to find, but also, in winter, can clear snow from the wires, so that faults on the outer surface of the wires in the power transmission lines can be discovered in a timely manner, so that they can be maintained in a timely manner and losses can be reduced.

Description

Technical Field

[0001] The invention relates to a power transmission line fault diagnosis device and a use method thereof, belonging to the field of power transmission line inspection equipment. Background Art

[0002] With the advancement of technology, drones are mostly used for patrols during the inspection of transmission lines. This is not only more efficient, but also safer because workers do not need to climb to high places during the inspection. However, in actual operation, since some transmission lines are set up in the wild, the horizontal wind in the wild is very likely to cause the drone to lose control or fall during the inspection. After falling in the wild, it is difficult to find it, which makes it impossible to repair and wastes resources. Therefore, it is necessary to improve it. Summary of the Invention

[0003] The purpose of the present invention is to solve the above-mentioned problems existing in the background technology and to provide a transmission line fault diagnosis device and a method for using the same.

[0004] The present invention achieves the above-mentioned purpose by adopting the following technical solutions:

[0005] A power transmission line fault diagnosis device includes an unmanned aerial vehicle (UAV) and a protective device; the protective device includes a connecting rod and two limit rods; one end of the connecting rod is mounted on a connecting frame at the lower end of the UAV through a through-hole; the upper end of one of the limit rods is connected to the lower end of the connecting rod via an arc rod; fixing rods are provided on opposite surfaces of the two limit rods, and a connecting piece is fixedly connected between the fixing rods.

[0006] A method for using a transmission line fault diagnosis device, the method comprising the following steps:

[0007] Step 1: Connect the perforated hole on the connecting rod to the mounting bracket at the lower end of the drone through the pin;

[0008] Step 2: Control the drone to move above the wire to be inspected, and then control the drone to make the wire slide between the two limit rods through the gap between the limit rod and the connecting rod;

[0009] Step 3: Control the drone to move upward, move the wire downward relative to the drone, and push the rotating device so that the wire is finally located between the connecting piece and the cone block and the rod body;

[0010] Step 4: Control the drone to move along the direction of the wires, and use the camera on the drone to transmit the wire situation back to the ground in real time until it moves to the fault location of the wire. Control the drone to hover, carefully observe the details of the fault and record the location, then start the drone again to inspect other locations of the wires.

[0011] Compared with the existing technology, the beneficial effects of the present invention are: the present invention can not only prevent the situation where the drone loses control and falls during field work and is difficult to find, but also in winter, it can clear the snow on the power lines, so that faults on the outer surface of the wires in the transmission lines can be discovered in time, so that they can be maintained in time and losses can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of a power transmission line fault diagnosis device of the present invention;

[0013] Figure 2 It is a three-dimensional structural diagram of a protection device of a power transmission line fault diagnosis device of the present invention;

[0014] Figure 3 It is a cross-sectional view of a protective device of a power transmission line fault diagnosis device of the present invention in a normal working state;

[0015] Figure 4 It is a cross-sectional schematic diagram of the working state of a protection device of a power transmission line fault diagnosis device of the present invention after a UAV loses control;

[0016] Figure 5 This is a structural schematic diagram of a limit rod of a power transmission line fault diagnosis device of the present invention;

[0017] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of B;

[0018] Figure 7 It is a three-dimensional structural schematic diagram of a rotating device of a power transmission line fault diagnosis device of the present invention;

[0019] Figure 8 This is a schematic diagram of the position structure of a rotating device and a protective device of a power transmission line fault diagnosis device of the present invention;

[0020] Figure 9 This is a schematic diagram of the rotation state structure of a rotating device of a power transmission line fault diagnosis device of the present invention;

[0021] Figure 10 yes Figure 9 Cross-sectional view in the AA direction;

[0022] Figure 11 The present invention is a schematic diagram of the contact state between the wires, the conical block and the rod of a power transmission line fault diagnosis device. DETAILED DESCRIPTION

[0023] The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] Specific implementation method 1: Figure 1-11 As shown, this embodiment describes a power transmission line fault diagnosis device, comprising a drone 1 and a protective device 3. The protective device 3 comprises a connecting rod 31 and two limiting rods 33. One end of the connecting rod 31 is mounted on a connecting bracket at the lower end of the drone 1 through a through-hole 32. The upper end of one of the limiting rods 33 is connected to the lower end of the connecting rod 31 via an arcuate rod 36. Fixed rods 37 are provided on opposing surfaces of the two limiting rods 33, and a connector 38 is fixedly connected between the fixing rods 37. This allows the drone 1 to be hung on the power line 2 via the connector 38 and limiting rods 33 if it loses power and moves below the power line 2, allowing the drone 1 to be hung on the power line 2 while awaiting rescue and preventing the drone from falling and causing irreparable damage.

[0025] The lower end of each limiting rod 33 is provided with a cavity 3118, and the inner wall of the cavity 3118 is connected to a sliding rod 3111 that slides with it through a spring I 3119; the interior of the sliding rod 3111 is provided with a receiving cavity 3117, and both sides of the receiving cavity 3117 are provided with through holes that slide with the sliding rod 3114; one end of the sliding rod 3114 located inside the receiving cavity 3117 is hinged to the transmission rod 3115, and the other end of the transmission rod 3115 is hinged to the sliding hole that slides with the receiving cavity 3117. The lower end of the weight block 3116 and the other end of the sliding rod 3114 slide into a slot 3112 on the inner wall of the cavity 3118. A spring II 3113 is provided on the inner wall of the slot 3112 to abut against the sliding rod 3114. The lower end of the sliding rod 3111 is connected to multiple rotating rods 39, each of which is fixedly connected to a hook 3110. The side of the cavity 3118 is provided with a notch, and the fixed rod 37 is fixedly connected to the portion of the sliding rod 3111 located within the notch. The weight block 3116 ensures that the gap between the connecting member 38 and the conical block 44 is not too large when the drone 1 is in operation, preventing incomplete snow removal. Furthermore, if the drone 1 loses control, the rotating rod 39 can be disengaged from the cavity 3118 and rotated about the hinge, thereby manipulating the hook 3110 to move to a different position, thereby increasing the success rate of the rescue drone 1 connecting to the out-of-control drone 1 via the hook 3110 and facilitating rescue.

[0026] The rotating device 4 is also included; the rotating device 4 includes a shaft 41; a side surface of a limiting rod 33 connected to the arc rod 36 is fixedly connected to an extension rod 34, and an arc groove 35 is provided on the extension rod 34; a connecting hole 3120 is provided on the other limiting rod 33; the shaft 41 is connected to the connecting hole 3120 through a bearing, and a coil spring is provided between the shaft 41 and the inner wall of the connecting hole 3120; both ends of the shaft 41 are fixedly connected to a connecting block 43; the connecting block 43 is provided with a slide groove 47 on the side facing the extension rod 34; the inner wall of the slide groove 47 is provided with an inclined surface, a T-shaped slide 48 is provided on the inclined surface, and a sliding match with it is provided in the T-shaped slide 48 The slider 49 is closed; a connecting rod Ⅰ 412 is fixedly connected to the side of the slider 49; the other end of the connecting rod Ⅰ 412 is fixedly connected to the tapered block 44; there are two tapered blocks 44, which are arranged opposite to each other and have grooves 410 on the opposite surfaces. A rod body 45 that slides with the groove 410 is provided between the two tapered blocks 44; a spring III 411 is fixedly connected between the inner wall of the groove 410 and the end of the rod body 45; a connecting rod Ⅱ 46 is fixedly connected to the side of the tapered block 44 away from the connecting block 43, and the connecting rod Ⅱ 46 slides with the arc groove 35; the shaft rod 41 is also fixedly connected to triangular blocks 42 located on both sides of the limit rod 33. The two conical blocks 44 and the rod body 45 can move relative to each other, and when not in contact with the wire, the distance between the two conical blocks 44 is smaller than the diameter of the wire 2. After the rotating device 4 contacts the wire 2, the distance between the two conical blocks 44 can be adjusted according to the actual situation of the wire 2, so as to achieve the purpose of full contact between the conical blocks 44, the rod body 45 and the wire 2.

[0027] The connecting member 38 is located below the conical block 44 and the rod body 45 .

[0028] When the triangular block 42 is pushed by the electric wire 2 , the rotating device 4 rotates accordingly, and the shaft 41 drives the coil spring to move and deform.

[0029] After the tapered blocks 44 come into contact with the wire 2 , the two tapered blocks 44 move in opposite directions.

[0030] A plurality of notches are provided on the inner circumferential surface of the hook 3110 .

[0031] When the drone 1 is inverted and located below the wire 2 , the sliding rod 3114 is disengaged from the slot 3112 .

[0032] The protection device 3 and the rotating device 4 are both made of insulating materials.

[0033] A method for using a transmission line fault diagnosis device, the method comprising the following steps:

[0034] Step 1: Connect the through hole 32 on the connecting rod 31 to the mounting bracket at the lower end of the drone 1 through a pin;

[0035] Step 2: Control the drone 1 to move above the wire 2 to be inspected, and then control the drone 1 to make the wire 2 slide between the two limit rods 33 through the gap between the limit rod 33 and the connecting rod 31;

[0036] Step 3: Control the drone 1 to move upward, so that the wire 2 moves downward relative to the drone 1, and push the rotating device 4 so that the wire 2 is finally located between the connecting member 38 and the conical block 44 and the rod 45;

[0037] Step 4: Control the drone 1 to move along the set direction of the wire 2, and transmit the situation of the wire 2 to the ground in real time through the camera on the drone 1 until it moves to the fault location of the wire 2. Control the drone 1 to hover, carefully observe the details of the fault and record the location, and then start the drone 1 again to inspect other locations of the wire 2.

[0038] The working principle of the present invention is as follows: when using the device, the through hole 32 on the connecting rod 31 is connected to the mounting bracket at the lower end of the drone 1 through a pin;

[0039] Control the drone 1 to move above the wire 2 to be inspected, and then control the drone 1 to make the wire 2 slide between the two limit rods 33 through the gap between the limit rod 33 and the connecting rod 31 away from the arc rod 36;

[0040] Control the drone 1 to move upward, so that the wire 2 moves downward relative to the drone 1. When the wire 2 contacts the triangular block 42, as the drone 1 drives the protective device 3 to move upward, the wire 2 pushes the triangular block 42 to rotate around the shaft 41, so that the shaft 41 drives the connecting blocks 43, the conical block 44, the rod body 45 and the connecting rod II 46 on both sides to rotate together, so that the rotating device 4 is rotated. Figure 8 The status shown turns to Figure 9 As shown in the state, the wire 2 is pushed and finally confined between the connector 38, the tapered block 44, and the rod 45. During the movement of the drone 1, the snow outside the wire 2 is cleared through the connector 38, the tapered block 44, and the rod 45;

[0041] When the conical block 44 and the rod 45 come into contact with the wire 2, the wire 2 pushes the rotating device 4 to Figure 1 During the state, the wire 2 gradually fully contacts the tapered block 44 and the rod body 45, causing the two tapered blocks 44 to move in the opposite direction, stretching the spring III 411, and the connecting rod I 412 driving the slider 49 to slide upward along the T-shaped slide 48, and the connecting rod II 46 also slides upward along the arc groove 35. In addition, during the reverse movement of the tapered block 44, the connecting rod I 412 and the connecting rod II 46 are also driven to move in the opposite direction. Figure 11The status shown moves to Figure 10 In the state shown, the conical block 44 and the rod 45 can be closely attached to the outside of the conductor 2, thus avoiding the situation where the gap between the conical block 44, the rod 45 and the conductor 2 is too large, resulting in incomplete snow removal;

[0042] When the wire 2 contacts the connector 38, Figure 1 As shown, the drone 1 is normally located above the wire 2, and the weight 3116 is as shown in FIG. Figure 3 、 5 6, the weight block 3116 is located at the bottom of the accommodating cavity 3117 in the vertical direction under the influence of gravity, so that the transmission rod 3115 pushes the sliding rod 3114 through the through hole on the side of the limiting rod 33 and finally inserts it into the slot 3112, thereby limiting the connection member 38 and the sliding rod 3111 in the vertical direction. Figure 3 、 5 6, moves downward to avoid the distance between the connector 38 and the tapered block 44 from increasing, resulting in insufficient contact with the wire 2, thereby affecting the snow clearing effect;

[0043] The drone 1 is controlled to move along the direction of the power line 2, and the situation of the power line 2 is transmitted back to the ground in real time through the camera on the drone 1 until it moves to the fault location of the power line 2. The drone 1 is controlled to hover, and after carefully observing the details of the fault and recording the location, the drone 1 is started again to inspect other locations of the power line 2;

[0044] When an accident occurs to the drone 1, causing the flight control system of the drone 1 to fail, the drone 1 loses its power system and moves under the action of gravity to the bottom of the power line 2, thereby driving the protection device 3 to move together. Under the action of the connecting piece 38 and the two limit rods 33, the drone 1 will not fall down after moving under the power line 2, so as to avoid being unable to find the drone 1 in the wild or the drone 1 falling to the ground and causing irreparable damage. At this time, an idle drone 1 can be dispatched to rescue the drone 1 that has lost power. The hook 3110 at the lower end of the idle drone 1 is hooked with the hook 3110 of the drone 1 that has lost power. Then, the rescue drone 1 is controlled to move upward until the power line 2 is separated from the protection device 3 on the drone 1 that has lost power.

[0045] like Figure 4In the state shown, the weight block 3116 inside the limit rod 33 moves downward under the action of gravity, driving the transmission rod 3115 to move, and then driving the sliding rod 3114 to move in the direction of the accommodating cavity 3117, so that it disengages from the slot 3112. When the sliding rod 3114 disengages from the slot 3112, the limit rod 33 moves downward relative to the sliding rod 3111 under the action of gravity, so that the rotating rod 39 disengages from the cavity 3118 and rotates around the hinge at the connection between the rotating rod 39 and the sliding rod 3111, so that the hook 3110 at the free end of the rotating rod 39 moves to different positions with the rotating rod 39, so as to increase the success rate of the rescue drone 1 connecting with the powerless drone 1 through the hook 3110.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other configurations without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations coming within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A power transmission line fault diagnosis device, characterized by: The invention comprises an unmanned aerial vehicle (1) and a protective device (3); the protective device (3) comprises a connecting rod (31) and two limiting rods (33); one end of the connecting rod (31) is mounted on a connecting frame at the lower end of the unmanned aerial vehicle (1) through a through hole (32); the upper end of one of the limiting rods (33) is connected to the lower end of the connecting rod (31) through an arc rod (36); fixing rods (37) are provided on opposite surfaces of the two limiting rods (33), and a connecting piece (38) is fixedly connected between the fixing rods (37); The lower end of each limiting rod (33) is provided with a cavity (3118), and a sliding rod (3111) that is slidably matched with the cavity (3118) is connected to the inner wall of the cavity (3118) via a spring I (3119); a receiving cavity (3117) is provided inside the sliding rod (3111), and through holes that are slidably matched with the sliding rod (3114) are provided on both sides of the receiving cavity (3117); one end of the sliding rod (3114) located inside the receiving cavity (3117) is hinged to the transmission rod (3115), and the other end of the transmission rod (3115) is hinged to the sliding cavity (3117). The lower end of the mating weight (3116) and the other end of the sliding rod (3114) are slidably mated with the slot (3112) on the inner wall of the cavity (3118); a spring II (3113) is provided on the inner wall of the slot (3112) to abut against the sliding rod (3114); the lower end of the sliding rod (3111) is connected to a plurality of rotating rods (39), and the lower end of each rotating rod (39) is fixedly connected to a hook (3110); a notch is provided on the side of the cavity (3118), and the fixed rod (37) is fixedly connected to the portion of the sliding rod (3111) located in the notch.

2. A power transmission line fault diagnosis device according to claim 1, characterized in that: The invention also includes a rotating device (4); the rotating device (4) includes a shaft (41); a side of a limiting rod (33) connected to the arc rod (36) is fixedly connected to an extension rod (34), and an arc groove (35) is provided on the extension rod (34); the other limiting rod (33) is provided with a connecting hole (3120); the shaft (41) is connected to the connecting hole (3120) through a bearing, and a coil spring is provided between the shaft (41) and the inner wall of the connecting hole (3120); both ends of the shaft (41) are fixedly connected to connecting blocks (43); a sliding groove (47) is provided on the side of the connecting block (43) facing the extension rod (34); an inclined surface is provided on the inner wall of the sliding groove (47), a T-shaped slideway (48) is provided on the inclined surface, and a sliding member is provided in the T-shaped slideway (48) that slides with the connecting block. The slider (49) is fixedly connected to a connecting rod I (412) on the side of the slider (49); the other end of the connecting rod I (412) is fixedly connected to the conical block (44); two conical blocks (44) are provided, and the two conical blocks (44) are arranged opposite to each other, and grooves (410) are provided on the opposite surfaces, and a rod body (45) is provided between the two conical blocks (44) and is slidably matched with the groove (410); a spring III (411) is fixedly connected between the inner wall of the groove (410) and the end of the rod body (45); a connecting rod II (46) is fixedly connected to the side of the conical block (44) away from the connecting block (43), and the connecting rod II (46) is slidably matched with the arc groove (35); the shaft rod (41) is also fixedly connected to triangular blocks (42) located on both sides of the limit rod (33).

3. A power transmission line fault diagnosis device according to claim 2, characterized in that: The connecting member (38) is located below the conical block (44) and the rod body (45).

4. A power transmission line fault diagnosis device according to claim 2, characterized in that: After the triangular block (42) is pushed by the electric wire (2), the rotating device (4) rotates accordingly, and the shaft (41) drives the coil spring to move and deform.

5. A power transmission line fault diagnosis device according to claim 2, characterized in that: After the conical block (44) contacts the electric wire (2), the two conical blocks (44) move in opposite directions.

6. A power transmission line fault diagnosis device according to claim 1, characterized in that: A plurality of notches are provided on the inner circular surface of the hook (3110).

7. A power transmission line fault diagnosis device according to claim 6, characterized in that: When the drone (1) is inverted and located below the wire (2), the sliding rod (3114) disengages from the slot (3112).

8. A power transmission line fault diagnosis device according to claim 7, characterized in that: The protective device (3) and the rotating device (4) are both made of insulating materials.

9. The method for using the power transmission line fault diagnosis device according to claim 5 or 8, characterized in that: The method of use comprises the following steps: Step 1: Connect the through hole (32) on the connecting rod (31) to the mounting frame at the lower end of the drone (1) through a pin; Step 2: Control the drone (1) to move above the wire (2) to be inspected, and then control the drone (1) to make the wire (2) slide between the two limit rods (33) through the gap between the limit rod (33) and the connecting rod (31); Step 3: Control the drone (1) to move upward, so that the wire (2) moves downward relative to the drone (1), and push the rotating device (4) so ​​that the wire (2) is finally located between the connecting piece (38) and the conical block (44) and the rod (45); Step 4: Control the drone (1) to move along the set direction of the wire (2), and transmit the situation of the wire (2) to the ground in real time through the camera on the drone (1), until it moves to the fault location of the wire (2), control the drone (1) to hover, carefully observe the details of the fault and record the location, and then start the drone (1) again to inspect other locations of the wire (2).

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