An unmanned aerial vehicle based phase spacer installation device

Abstract

This invention discloses a spacer bar installation device based on a UAV, belonging to the field of spacer bar installation technology. It includes a base installed at the end of the spacer bar and a fixing clamp fixed to one side of the bottom of the base. The fixing clamp has a second pressure groove on its inner side. It also includes a movable clamp located on the bottom of the base away from the fixing clamp, with a first pressure groove on its inner side. The movable clamp is designed to have two states: a horizontal sliding state relative to the base and a deflection state relative to the base around an axis. On one hand, this increases the clamping opening between the movable clamp and the fixing clamp, facilitating the smooth entry of overhead power lines into the clamping area when the UAV lowers the spacer bar, improving alignment and insertion efficiency. On the other hand, compared to the traditional linear translation clamping method, under the same driving power conditions, the deflection clamping method provides greater clamping force and torque, making the connection between the spacer bar and the overhead power line more stable and reliable.

Description

Technical Field

[0001] This invention relates to the field of spacer installation technology, and in particular to a phase spacer installation device based on a drone. Background Technology

[0002] Phase spacers are key hardware in high-voltage and ultra-high-voltage overhead transmission lines used to limit the relative displacement of phase conductors and prevent phase flashover and galloping. Their installation quality is directly related to the safe and stable operation of the transmission line.

[0003] Traditional phase-to-phase spacer installation relies heavily on manual tower climbing and high-altitude operations. Workers must operate in high-voltage and high-altitude environments, which not only results in high labor intensity and low work efficiency, but also poses safety risks such as falls from heights and electric shocks.

[0004] With the widespread application of drone technology in power line inspection and construction operations, the use of drones equipped with specialized installation devices to achieve automated and unmanned installation of phase-to-phase spacer bars has become an important development direction in the field of power transmission line hardware installation.

[0005] Existing drone-mounted phase spacer installation devices typically use a linear translation method to clamp overhead power lines, which has problems such as a small adjustable range of clamping openings and difficulty in guiding overhead power lines. At the same time, the linear translation clamping structure requires a large axial driving force, resulting in high power requirements for the supporting drive components, which increases the load on the drone and leads to high overall energy consumption of the device.

[0006] Therefore, it is necessary to provide a UAV-based phase spacer installation device to solve the above-mentioned technical problems. Summary of the Invention

[0007] The purpose of this invention is to provide a phase spacer installation device based on unmanned aerial vehicles (UAVs) to solve the technical problems mentioned in the background art.

[0008] Based on the above ideas, the present invention provides the following technical solution: a phase spacer mounting device based on a UAV, comprising a base mounted on the end of the spacer and a fixing clamp fixed to one side of the bottom of the base, wherein a second pressing groove is provided on the inner side of the fixing clamp, and further comprising: A movable clamp is disposed on the bottom of the base away from the fixed clamp and has a first pressure groove on its inner side. The movable clamp has a state of horizontal sliding relative to the base and a state of deflection relative to the base about a fixed axis. A driving component is used to drive the movable clamp to move at the bottom of the base in the order of state one to state two, so that the movable clamp finally presses the overhead wire between the movable clamp and the fixed clamp in a deflection pressing manner.

[0009] As a further aspect of the present invention: positioning elements are fixed on both the front and rear sides of the base. When the overhead wire contacts the positioning element, the spacer stops falling and the overhead wire aligns with the second pressure groove on the fixing clamp.

[0010] As a further aspect of the present invention: the movable clamp is hinged to the slider sliding at the bottom of the base via a pin, and a retaining pin is elastically connected to the slider. A pin hole that cooperates with the retaining pin is provided on the outer circular surface of the pin, and a through hole that cooperates with the retaining pin is provided on the base. When the movable clamp slides to its limit position with the slider towards the side closer to the fixed clamp, the retaining pin aligns with the through hole, so that the movable clamp switches from state one to state two.

[0011] As a further aspect of the present invention: the driving assembly includes a first screw that cooperates with a movable clamp and a second screw that cooperates with a fixed clamp. The fixed clamp is provided with a threaded cylinder that engages with the second screw, and the threaded cylinder is rotatably installed inside the fixed clamp. A threaded sleeve is hinged to the movable clamp, and the first screw is threadedly engaged with the threaded sleeve. The first state of the movable clamp responds to the threaded engagement of the second screw and the threaded cylinder, and the second state of the movable clamp responds to the threaded engagement of the first screw and the threaded sleeve. The torque for driving the first screw to rotate relative to the threaded sleeve is greater than the torque for driving the second screw to rotate relative to the threaded cylinder.

[0012] As a further aspect of the present invention: the end of the first screw protrudes outward to form two limiting protrusions, and a limiting groove is provided between the two limiting protrusions; the end of the second screw protrudes outward to form a plug-in block that mates with the limiting groove; a pin groove is provided on the inner wall of the limiting protrusion; a limiting pin that mates with the pin groove is elastically connected to the side wall of the plug-in block; when the first screw and the second screw are misaligned with the overhead power line and reset, the plug-in block can be re-inserted into the limiting groove; and when the second screw is driven to move along the axial direction of the first screw through the threaded engagement of the threaded cylinder and the second screw, the limiting protrusion can coincide with the pin groove, thereby locking the first screw and the second screw.

[0013] As a further aspect of the present invention: a first support spring and a second support spring are respectively provided at the movable clamp and the fixed clamp. The first support spring is used to support the first screw, and the second support spring is used to support the second screw, so that the first screw and the second screw can be in a coaxial state initially.

[0014] As a further aspect of the present invention: both the movable clamp and the fixed clamp are provided with slots, so that the first screw and the second screw can deflect toward one side of the base.

[0015] As a further aspect of the present invention: a lifting ring is fixed to the top of the base, so that the entire device can be suspended to the bottom of the drone by ropes.

[0016] As a further aspect of the present invention: a power supply unit is installed on the top of the base, the power supply unit being used to supply power to the motor inside the fixing clamp.

[0017] As a further aspect of the present invention: the output end of the motor is connected to a drive shaft, and a universal joint is provided at the end of the threaded cylinder away from the first screw. The drive shaft and the universal joint are connected by a reversing assembly.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: by designing the movable clamp to have a state of horizontal sliding relative to the base and a state of deflection relative to the base around an axis, on the one hand, the clamping opening between the movable clamp and the fixed clamp can be increased, facilitating the smooth entry of the overhead wire into the clamping area when the UAV lowers the spacer bar, thus improving alignment and insertion efficiency; on the other hand, compared with the traditional linear translation clamping method, under the same driving power conditions, the deflection clamping method can provide greater clamping force and clamping torque, making the connection between the spacer bar and the overhead wire more stable and reliable. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the initial positions of the movable clamp and the fixed clamp of the present invention; Figure 3 This is a schematic diagram of the drive shaft and threaded cylinder transmission structure of the present invention; Figure 4 This is a schematic diagram of the screw sleeve installation structure of the present invention; Figure 5 This is a schematic diagram of the first screw and the second screw of the present invention. Figure 6 This is the present invention. Figure 5 A magnified structural diagram at point A; Figure 7 This is the present invention. Figure 5 A magnified structural diagram at point B; Figure 8 This is the present invention. Figure 5 A magnified structural diagram at point C; Figure 9 This is a schematic diagram of the state in which the movable clamp of the present invention clamps the overhead power line in a deflected state.

[0021] In the diagram: 1. Base; 101. Through hole; 2. Positioning component; 3. Moving clamp; 301. First pressure groove; 302. Pin shaft; 3021. Pin hole; 4. First screw; 401. Limiting protrusion; 4011. Pin groove; 4012. Chamfer; 5. Fixing clamp; 501. Second pressure groove; 6. Second screw; 601. Insertion block; 6011. Limiting pin; 7. Power supply unit; 8. Spacer bar; 9. Drive shaft; 10. Reversing assembly; 11. Universal joint; 12. Sleeve; 13. First support spring; 14. Guide rod; 15. Slider; 16. Screw sleeve; 1601. Connecting shaft; 1602. Slot; 17. Second support spring; 18. Threaded cylinder; 19. Locking pin; 1901. Protruding ring; 20. Elastic component; 21. Locking block. Detailed Implementation

[0022] like Figures 1 to 9 As shown, a phase spacer installation device based on a drone includes a phase spacer 8 and a locking mechanism disposed at the end of the phase spacer 8; the locking mechanism is used to fix the phase spacer 8 to two adjacent phase overhead power lines. Figure 9 As shown in a), between phases, relative displacement of conductors is suppressed to prevent phase flashover and galloping, thereby improving the operational safety of transmission lines.

[0023] The locking mechanism includes a base 1, with a fixed clamp 5 and a movable clamp 3 respectively provided on both sides of the bottom of the base 1. The fixed clamp 5 is fixed to the base 1 by bolts, and the spacer bar 8 can be fixedly connected to the base 1 or the fixed clamp 5; the movable clamp 3 has two working states: state one is horizontal sliding along the length direction of the base 1, and state two is deflection relative to the base 1 around a fixed axis.

[0024] Reference Figure 1 As shown, the movable clamp 3 can switch between sliding and deflection states, forming a large opening structure between the fixed clamp 5 and the movable clamp 3. This facilitates the smooth insertion of overhead power lines into the clamping area during drone hoisting, significantly reducing the difficulty of high-altitude alignment and installation operations.

[0025] Reference Figure 2 The movable clamp 3 has a first pressing groove 301 adapted to the overhead power line on its inner side, and the fixed clamp 5 has a second pressing groove 501 adapted to the overhead power line on its inner side; rubber protective pads can be attached to the inner circumferential surfaces of the first pressing groove 301 and the second pressing groove 501 to avoid damage to the overhead power line during clamping.

[0026] A drive assembly is provided between the movable clamp 3 and the fixed clamp 5, which can drive the movable clamp 3 to move at the bottom of the base 1 and switch sequentially between state one (horizontal sliding) and state two (rotation around an axis). During operation, a drone lifts the spacer bar 8 to the overhead power line, so that the locking mechanism is precisely aligned with the overhead power line; after the overhead power line enters between the fixed clamp 5 and the movable clamp 3, the drive assembly drives the movable clamp 3 to move, locking the overhead power line between the movable clamp 3 and the fixed clamp 5.

[0027] Furthermore, the force application point of the drive assembly on the movable clamp 3 is located on the side of the first pressure groove 301 away from the base 1. This arrangement allows the movable clamp 3 to generate a larger clamping torque and clamping force when clamping the overhead wire in a deflection manner, ensuring the spacer bar 8 is installed stably; at the same time, it can reduce the output power required by the drive assembly, effectively reducing the operating load of the UAV.

[0028] The drive assembly includes a first screw 4 that engages with the movable clamp 3 and a second screw 6 that engages with the fixed clamp 5. Figures 2-5 As shown, the fixing clamp 5 is provided with a threaded cylinder 18, and one end of the second screw 6 extends into the threaded cylinder 18 and is threadedly connected to it.

[0029] The threaded cylinder 18 is connected to a universal joint 11 at the end away from the movable clamp 3, and the universal joint 11 is connected to the drive shaft 9 in the fixed clamp 5 via a reversing assembly 10. Through the universal joint 11, the drive shaft 9 is always able to transmit power to the threaded cylinder 18 via the reversing assembly 10 and the universal joint 11 during the rotation of the threaded cylinder 18 in a vertical plane orthogonal to the base 1.

[0030] Specifically, the state of the movable clamp 3 is responsive to the threaded engagement of the second screw 6 and the threaded cylinder 18, that is: through the cooperation of the second screw 6 and the threaded cylinder 18, the movable clamp 3 can be driven to move horizontally at the bottom of the base 1 and gradually approach the fixed clamp 5.

[0031] The movable clamp 3 is provided with a screw sleeve 16, which is hinged to the movable clamp 3 and can rotate in a vertical plane orthogonal to the base 1. The first screw 4 is threadedly engaged with the screw sleeve 16.

[0032] Specifically, the second state of the movable clamp 3 is in response to the thread engagement between the first screw 4 and the screw sleeve 16, that is: through the cooperation of the first screw 4 and the screw sleeve 16, the movable clamp 3 can be driven to deflect relative to the base 1 and finally lock the overhead wire.

[0033] The opposite ends of the first screw 4 and the second screw 6 are inserted into each other, enabling power transmission between them. Figure 5 , Figure 8As shown, the end of the first screw 4 away from the movable clamp 3 protrudes outward to form two limiting protrusions 401, and a limiting groove is set between the two limiting protrusions 401.

[0034] The end of the second screw 6 furthest from the fixing clamp 5 protrudes outward to form a plug-in block 601 that mates with the limiting groove. Further, a pin groove 4011 is formed on the inner wall of the limiting protrusion 401, and a limiting pin 6011 that mates with the pin groove 4011 is elastically connected to the side wall of the plug-in block 601. Specifically, a mounting groove for installing the limiting pin 6011 is formed on the side wall of the plug-in block 601, and a limiting spring is connected between the inner end face of the mounting groove and the limiting pin 6011.

[0035] Initially, the first screw 4 and the second screw 6 are in the following position: Figures 1-3 In the coaxial state shown, as the drone gradually descends the spacer bar 8 to allow the overhead wire to enter between the movable clamp 3 and the fixed clamp 5, the overhead wire can drive the first screw 4 and the second screw 6 to deflect towards the side closer to the base 1. When the first screw 4 and the second screw 6 are misaligned with the overhead wire, the first screw 4 and the second screw 6 can reset and return to the coaxial state. At this time, the plug block 601 is re-inserted into the limiting groove. When the threaded engagement between the threaded cylinder 18 and the second screw 6 drives the second screw 6 to move along the axial direction of the first screw 4, the limiting pin 6011 can coincide with the pin groove 4011, so that the limiting pin 6011 can pop out and insert into the pin groove 4011 to lock the first screw 4 and the second screw 6, thereby facilitating the power transmission between the first screw 4 and the second screw 6.

[0036] Refer again Figure 8 As shown, a chamfer 4012 is provided at the top side edge of the limiting protrusion 401. With this structure, when the first screw 4 and the second screw 6 are misaligned with and reset from the overhead power line, the limiting pin 6011 can contact the chamfer 4012 and be compressed into the plug block 601, thereby avoiding interference between the limiting pin 6011 and the limiting protrusion 401.

[0037] In order to maintain the initial coaxial state of the first screw 4 and the second screw 6, this solution provides a first support spring 13 and a second support spring 17 at the moving clamp 3 and the fixed clamp 5, respectively. The first support spring 13 is used to support the first screw 4, while the second support spring 17 is used to support the second screw 6.

[0038] Reference Figure 4As shown, the movable clamp 3 is hinged to the slider 15 slidably disposed at the bottom of the base 1. Specifically, the hinge position is located at the top of the movable clamp 3 and on the side close to the fixed clamp 5. In this way, the movable clamp 3 can deflect relative to the base 1 around the hinge axis and stably clamp the overhead wire.

[0039] Combination Figure 3 , Figures 5 to 6 As shown, the top of the slider 15 is elastically connected to a locking pin 19. Initially, the locking pin 19 engages with the movable clamp 3, so that the movable clamp 3 can maintain an outward tilt relative to the fixed clamp 5 and perform the movement in state one in this posture.

[0040] The base 1 has a through hole 101. As the movable clamp 3 slides at the bottom of the base 1 and approaches the fixed clamp 5, the locking pin 19 can overlap with the through hole 101 and remain in a popped-up state, so that the slider 15 is engaged with the base 1 and the slider 15 is unlocked from the movable clamp 3, so that the movable clamp 3 can deflect and clamp the overhead wire according to the second state.

[0041] During installation, in order to align the overhead power line with the first pressure groove 301 and the second pressure groove 501, this solution has rod-shaped positioning parts 2 fixed on both the front and rear sides of the base 1. When the overhead power line enters the locking mechanism under the spacer bar 8 below the drone, when the overhead power line contacts the positioning part 2, the spacer bar 8 stops falling and the overhead power line is aligned with the second pressure groove 501 on the fixing clamp 5.

[0042] In actual operation, in order for the movable clamp 3 to move in the order from state one to state two, the end of the first screw 4 away from the fixed clamp 5 is set as a smooth rod, and a locking block 21 is elastically connected to the smooth rod. A slot 1602 that cooperates with the locking block 21 is opened on the inner wall of the screw sleeve 16. The slot 1602 is located on the smooth part of the inner wall of the screw sleeve 16. Specifically, the end of the locking block 21 that is inserted into the slot 1602 has a spherical structure. With this structure, when the overhead wire enters the locking mechanism and the first screw 4 and the second screw 6 are separated from the overhead wire and reset, the plug block 601 can be re-inserted between the two limiting protrusions 401, and the first screw 4 and the second screw 6 remain coaxial under the action of the first support spring 13 and the second support spring 17. When the drive shaft 9 is rotated by an external motor, the drive shaft 9 can drive the universal joint 11 to rotate through the reversing assembly 10, and then drive the threaded cylinder 18 to rotate through the universal joint 11. Since the first screw 4 is engaged with the threaded sleeve 16, the force driving the first screw 4 to rotate relative to the threaded sleeve 16 is greater than the force driving the second screw 6 to rotate relative to the threaded cylinder 18. At the same time, the limiting protrusion 401 limits the insertion block 601 to prevent the second screw 6 from rotating. Therefore, during the rotation of the threaded cylinder 18 relative to the second screw 6, the second screw 6 can be driven to move inward along the axis of the first screw 4 into the threaded cylinder 18. As described above, during this process, the limiting pin 6011 can overlap with the pin groove 4011 and be inserted into the pin groove 4011, thereby locking the first screw 4 and the second screw 6. At this time, during the rotation of the threaded cylinder 18 relative to the second screw 6, the first screw 4 and the second screw 6 can be driven to move synchronously in a straight line, thereby driving the moving clamp 3 to move horizontally at the bottom of the base 1. When the slider 15 moves to the through hole 101, causing the locking pin 19 on the slider 15 to pop up and insert into the through hole 101, the slider 15 is locked to the base 1, and the moving clamp 3 is unlocked from the slider 15. At this time, the end of the second screw 6 away from the first screw 4 is in contact with the inner end face of the threaded cylinder 18 and is restricted from moving, so that the threaded cylinder 18 can drive the first screw 4 and the second screw 6 to rotate synchronously. When the first screw 4 rotates relative to the screw sleeve 16, the moving clamp 3 can be pulled by the screw sleeve 16 to make the moving clamp 3 deflect downward around the axis that is hinged to the slider 15 and finally press the overhead wire between the moving clamp 3 and the fixed clamp 5.

[0043] In summary, this design posits that the movable clamp 3 can slide horizontally relative to the base 1 in one state and deflect around the base 1 in another. On one hand, this increases the clamping opening between the movable clamp 3 and the fixed clamp 5, facilitating the smooth entry of the overhead power line into the clamping area when the UAV lowers the spacer bar 8, thus improving alignment and insertion efficiency. On the other hand, compared to the traditional linear translation clamping method, under the same driving power conditions, the deflection clamping method provides greater clamping force and torque, making the connection between the spacer bar 8 and the overhead power line more stable and reliable.

[0044] like Figure 1 As shown, a lifting ring is fixed to the top of the base 1, facilitating the attachment of the device to the bottom of the drone via a rope. In actual use, a hook can be installed at the end of the rope, and the entire device can be lifted using the hook and the lifting ring. After the spacer bar 8 is installed, the drone can be lowered further to disengage the hook from the lifting ring. Alternatively, the rope can be directly fixed to the lifting ring, and an electric shearing device can be installed on the rope to cut the rope and separate the drone from the device. Since this is a mature technology, it will not be elaborated upon here.

[0045] Refer again Figure 1 As shown, a power supply unit 7 is mounted on the top of the base 1, and the power supply unit 7 can also be connected to the drone by a rope. The power supply unit 7 includes a housing and a power source installed inside the housing. The power source is used to power the motor inside the fixing clamp 5. Furthermore, the power source and the motor can be connected by a magnetic connector, which facilitates the removal of the power supply unit 7 from the base 1.

[0046] Combination Figures 1-3 As shown, both the movable clamp 3 and the fixed clamp 5 are provided with slots to prevent the first screw 4 and the second screw 6 from being obstructed when they deflect. The threaded cylinder 18 and the threaded sleeve 16 are both provided in the slots.

[0047] Reference Figure 3 As shown, a sleeve 12 is fitted on the outer side of the threaded cylinder 18. The threaded cylinder 18 can rotate with the sleeve 12. The second support spring 17 is fixedly connected between the sleeve 12 and the bottom of the inner cavity of the fixing clamp 5, so that the second screw 6 can be initially aligned with the first screw 4.

[0048] The reversing assembly 10 is fixedly installed in the fixing clamp 5, and the reversing assembly 10 mainly consists of a pair of vertically arranged bevel gears, one of which is connected to the universal joint 11, and the other is connected to the drive shaft 9. This structure makes the motor installation more compact, thereby reducing the overall size of the locking mechanism, which is beneficial for installing the device by means of drone hoisting.

[0049] Combination Figure 4 As shown, two sets of connecting shafts 1601 are fixed on the outer circular surface of the threaded sleeve 16. The end of the connecting shaft 1601 away from the threaded sleeve 16 extends to the inner wall of the slot and rotatably engages with the movable clamp 3. A support member is fixed at the bottom of the slot of the movable clamp 3, and the first support spring 13 is fixed between the support member and the threaded sleeve 16, with the first support spring 13 located on the side of the connecting shaft 1601 closer to the second screw 6.

[0050] from Figure 4 It can also be seen that the bottom of the base 1 is provided with a recess for sliding the slider 15, and a guide rod 14 is fixed in the recess. The guide rod 14 passes through the slider 15 and slides with it.

[0051] The movable clamp 3 has an opening at its top for mounting the slider 15, and the top of the movable clamp 3, near the fixed clamp 5, is a columnar hinge portion, at which a pin 302 is provided. Specifically, the pin 302 passes through the hinge portion and is fixed to it. Figures 4-6As shown, the pin 302 passes through the slider 15 and rotatably engages with it. It can be understood that the pin 302 and the guide rod 14 are vertically offset. The outer surface of the pin 302 has a pin hole 3021 that engages with the locking pin 19. Initially, the movable clamp 3 is in an inclined state and one end of the locking pin 19 is inserted into the pin hole 3021, thereby locking the movable clamp 3. Figure 6 As can be seen, the slider 15 is provided with a stepped hole for mounting the locking pin 19, and the protruding ring 1901 fixed to the outside of the locking pin 19 slides in the stepped hole. An elastic element 20, such as a spring, is provided between the protruding ring 1901 and the bottom end face of the stepped hole. When the locking pin 19 is aligned with the through hole 101 on the base 1, the elastic force of the elastic element 20 can drive the locking pin 19 to move upward, so that the top end of the locking pin 19 is inserted into the through hole 101 and the bottom end of the locking pin 19 is moved out of the pin hole 3021.

[0052] Combination Figure 7 As shown, a spring is arranged in the groove on the first screw 4 for mounting the locking block 21, and the spring is connected between the end of the groove and the locking block 21. When the second screw 6 contacts the inner end face of the threaded cylinder 18 and is restricted from movement, as the threaded cylinder 18 drives the first screw 4 and the second screw 6 to rotate synchronously, the locking block 21 can be squeezed and retracted into the groove by the inner wall of the slot 1602. This allows the first screw 4 to rotate relative to the threaded sleeve 16.

[0053] The above-disclosed examples are merely preferred embodiments of this application, intended to facilitate understanding and implementation by those skilled in the art. However, they cannot be used to limit the scope of this application. Therefore, equivalent variations made within the scope of this application are still within the scope of this application.

Claims

1. A phase spacer mounting device based on an unmanned aerial vehicle (UAV), comprising a base (1) mounted on the end of a spacer (8) and a fixing clip (5) fixed to one side of the bottom of the base (1), wherein a second pressure groove (501) is provided on the inner side of the fixing clip (5), characterized in that, Also includes: The movable clamp (3) is located on the bottom of the base (1) away from the fixed clamp (5) and has a first pressure groove (301) on its inner side. The movable clamp (3) has a state of horizontal sliding relative to the base (1) and a state of deflection relative to the base (1) around a fixed axis. A drive assembly is used to drive the movable clamp (3) to move at the bottom of the base (1) in the order of state one to state two, so that the movable clamp (3) eventually presses the overhead wire between the movable clamp (3) and the fixed clamp (5) in a deflection pressing manner.

2. The phase spacer installation device based on a UAV according to claim 1, characterized in that: Positioning elements (2) are fixed on both the front and rear sides of the base (1). When the overhead wire contacts the positioning element (2), the spacer (8) stops falling and the overhead wire aligns with the second pressure groove (501) on the fixing clamp (5).

3. The phase spacer installation device based on a UAV according to claim 1, characterized in that: The movable clamp (3) is hinged to the slider (15) at the bottom of the base (1) via a pin (302), and a locking pin (19) is elastically connected to the slider (15). A pin hole (3021) is provided on the outer surface of the pin (302) to cooperate with the locking pin (19). A through hole (101) is provided on the base (1) to cooperate with the locking pin (19). When the movable clamp (3) slides to the limit position with the slider (15) towards the side closer to the fixed clamp (5), the locking pin (19) aligns with the through hole (101), so that the movable clamp (3) switches from state one to state two.

4. The phase spacer installation device based on a UAV according to claim 3, characterized in that: The drive assembly includes a first screw (4) that engages with a movable clamp (3) and a second screw (6) that engages with a fixed clamp (5). The fixed clamp (5) is provided with a threaded cylinder (18) that engages with the second screw (6) and the threaded cylinder (18) is rotatably mounted in the fixed clamp (5). A threaded sleeve (16) is hinged to the movable clamp (3) and the first screw (4) engages with the threaded sleeve (16). The first state of the movable clamp (3) responds to the threaded engagement of the second screw (6) and the threaded cylinder (18), and the second state of the movable clamp (3) responds to the threaded engagement of the first screw (4) and the threaded sleeve (16). The torque that drives the first screw (4) to rotate relative to the threaded sleeve (16) is greater than the torque that drives the second screw (6) to rotate relative to the threaded cylinder (18).

5. The phase spacer installation device based on a UAV according to claim 4, characterized in that: The first screw (4) has two limiting protrusions (401) protruding outward at its end, and a limiting groove is provided between the two limiting protrusions (401). The second screw (6) has a plug block (601) protruding outward at its end, which cooperates with the limiting groove. A pin groove (4011) is provided on the inner wall of the limiting protrusion (401), and a limiting pin (6011) that cooperates with the pin groove (4011) is elastically connected to the side wall of the plug block (601). When the first screw (4) and the second screw (6) are misaligned with the overhead power line and reset, the plug block (601) can be re-inserted into the limiting groove. When the second screw (6) is driven to move along the axial direction of the first screw (4) through the threaded engagement of the threaded cylinder (18) and the second screw (6), the limiting protrusion (401) can coincide with the pin groove (4011), so that the first screw (4) and the second screw (6) are locked.

6. The phase spacer installation device based on a UAV according to claim 4, characterized in that: The movable clamp (3) and the fixed clamp (5) are respectively provided with a first support spring (13) and a second support spring (17). The first support spring (13) is used to support the first screw (4), and the second support spring (17) is used to support the second screw (6), so that the first screw (4) and the second screw (6) can be in a coaxial state initially.

7. The phase spacer installation device based on a UAV according to claim 4, characterized in that: Both the movable clamp (3) and the fixed clamp (5) are provided with slots, so that the first screw (4) and the second screw (6) can deflect toward the base (1).

8. The phase spacer installation device based on a UAV according to claim 1, characterized in that: The base (1) is fixed with a lifting ring at the top, so that the entire device can be suspended to the bottom of the drone by ropes.

9. The phase spacer installation device based on a UAV according to claim 4, characterized in that: A power supply unit (7) is installed on the top of the base (1), which is used to supply power to the motor in the fixing clamp (5).

10. A phase spacer mounting device based on an unmanned aerial vehicle (UAV) according to claim 9, characterized in that: The output end of the motor is connected to a drive shaft (9), and a universal joint (11) is provided at the end of the threaded cylinder (18) away from the first screw (4). The drive shaft (9) and the universal joint (11) are connected by a reversing assembly (10).

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