A multifunctional device for removing foreign matters from a distribution network overhead line

Abstract

This invention relates to the field of power grid operation and maintenance technology, and discloses a foreign object removal device for a multi-functional assembly of overhead distribution lines. The device includes an insulating rod with a mounting frame at its top. A motor and a battery supplying power to the motor are mounted on the mounting frame. A cutting saw blade is connected to the motor's shaft. A protective plate is elastically mounted on the mounting frame, with a clearance groove at the top of the protective plate corresponding to the cutting saw blade. Initially, the top of the cutting saw blade does not protrude from the clearance groove. A pulling rope is mounted on the protective plate, extending to the lower part of the insulating rod. This invention has a simple structure, low cost, convenient operation, and controllable precision, effectively reducing the probability of cable damage during obstacle removal and ensuring operational safety.

Description

Technical Field

[0001] This invention relates to the field of power grid operation and maintenance technology, and in particular to a foreign object removal device for a multi-functional assembly of overhead distribution lines. Background Technology

[0002] During the long-term operation of overhead power distribution lines, lightweight hanging objects such as kite strings, plastic films, canvas, and shade nets are easily entangled or covered on the surface of cables due to the combined effects of natural environment and human factors. This has become a key hidden danger threatening the safe and stable operation of power transmission and distribution lines. Traditional methods for removing foreign objects from power lines revolve around "power outage operations," requiring a strict approval process before workers use high-altitude climbing, scaffolding erection, or cranes to carry out the clearing work. This method has several drawbacks: First, the process is cumbersome, time-consuming, and labor-intensive, significantly extending fault handling time and increasing power outage duration. Second, the high-altitude working environment is complex, posing safety risks such as falls and electric shocks to workers, placing significant pressure on safety assurance. Third, power outages directly affect the normal electricity use of residents and businesses along the line, significantly reducing power supply reliability, which contradicts the core objective of power operation and maintenance: "ensuring power supply and minimizing outages." To address the shortcomings of traditional power outage operations, the industry has gradually developed and applied new types of uninterrupted power outage clearing equipment, such as laser cannons and drone-based flamethrowers. While these devices fulfill the core requirements of uninterrupted power outage operations, their limitations are also significant: Firstly, the equipment is expensive, with the purchase cost of a single unit often reaching hundreds of thousands of yuan, greatly increasing the cost of power operation and maintenance, making it difficult for grassroots operation and maintenance units with limited funds to fully equip themselves with such equipment; secondly, it requires extremely high levels of professional technical skills from operators, necessitating precise control of key parameters such as laser power, flamethrower temperature, and operating distance. Improper parameter control can easily burn the cable insulation layer or damage the metal conductor, thus expanding the scope of the fault and causing secondary losses, making it difficult to widely promote and apply in grassroots operation and maintenance work. To address the shortcomings of the aforementioned equipment, some grassroots units have explored and adopted simpler obstacle removal tools. These tools consist of modular insulating rods with blades and metal hooks attached to the ends, allowing for manual manipulation to hook or cut foreign objects. While these tools offer advantages such as portability, low operational threshold, and low cost, making them suitable for removing low-lying, easily accessible foreign objects, they still have significant drawbacks in practical application. Because the blades, hooks, and other removal components are rigidly fixed to the insulating rod, and the operation requires remote manual control, it is difficult to control operational precision. This can easily scratch the insulation layer of cables during the removal of foreign objects, or even damage the metal conductors, causing new line faults. Not only does this fail to achieve effective obstacle removal, it also further exacerbates potential line safety hazards.

[0003] Therefore, there is an urgent need for a multi-functional foreign object removal device for overhead power distribution lines that is low in cost, easy to operate, has controllable precision, and can achieve safe and uninterrupted power removal. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-functional foreign object removal device for overhead power distribution lines. It has a simple structure, low cost, convenient operation, and controllable precision, which can effectively reduce the probability of damage to cables during the obstacle removal process and ensure the safety of operation.

[0005] The present invention adopts the following technical solution: A foreign object removal device for a multi-functional assembly of overhead power distribution lines includes an insulating rod with a mounting frame at its top. The mounting frame houses a motor and a battery supplying power to the motor. A cutting saw blade is connected to the motor's shaft. A protective plate is elastically mounted on the mounting frame, with a clearance groove at the top of the protective plate corresponding to the cutting saw blade. Initially, the top of the cutting saw blade does not protrude from the clearance groove. A pulling rope is mounted on the protective plate, extending to the lower part of the insulating rod.

[0006] Preferably, the mounting bracket and the protective plate are elastically connected by a spring.

[0007] Preferably, the mounting bracket is provided with a guide rod, the spring is sleeved on the outside of the guide rod, and both ends are fixedly connected to the protective plate and the mounting bracket respectively. The protective plate is provided with a guide hole for the guide rod to move through.

[0008] Preferably, the length of the insulating rod is adjustable, an adjustment frame is slidably mounted on the insulating rod, a winding wheel is mounted on the adjustment frame, and the pulling rope is wound onto the winding wheel; a crank is mounted on the adjustment frame to control the rotation of the winding wheel.

[0009] Preferably, a handle is slidably provided on the adjustment frame, and an arc-shaped positioning plate is provided on the top of the handle. In the initial state, the positioning plate is sleeved on the wheel wall on one side of the winding wheel; the end face of the positioning plate that contacts the wheel arm of the winding wheel is provided with mutually meshing positioning teeth and positioning grooves.

[0010] Preferably, a positioning ring is slidably disposed on the insulating rod below the adjustment frame, and a locking bolt is threaded onto the positioning ring.

[0011] Preferably, the insulating rod is provided with scale lines.

[0012] Preferably, the insulating rod has a hollow structure inside, with through holes at one end near the winding wheel and at the other end near the protective plate. The pulling rope passes through the lower through hole into the insulating rod and exits through the upper through hole to connect with the protective plate.

[0013] Preferably, a drive shaft is coaxially arranged on the cutting saw blade, one end of which extends movably from the mounting bracket, and multiple collecting rods are arranged along its circumference, each collecting rod having a protruding spike.

[0014] Preferably, a bracket is provided on the mounting frame on one side of the protective plate, and an auxiliary grooved wheel is rotatably provided on the bracket, the auxiliary grooved wheel being positioned higher than the protective plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention uses an insulating rod as the main operating body, in conjunction with the insulating mounting frame structure on the top, which allows operators to remotely control the removal of foreign objects from the ground without interrupting the power distribution network, effectively avoiding the power outage problem caused by traditional power outage operations, and aligning with the core objective of power operation and maintenance of "ensuring power supply and minimizing power outages"; at the same time, it eliminates the need for operators to climb at heights, effectively eliminating safety risks such as falls from heights and electric shocks, and significantly improving operational safety.

[0016] This invention features an elastic protective plate and a structure with a clearance groove. In the initial state, the top of the cutting saw blade does not protrude beyond the clearance groove. During operation, the distance the protective plate moves downward can be controlled by pulling the traction rope according to the thickness of the foreign object wrapped around the cable. This allows the cutting saw blade to extend from the clearance groove to a specified height, thus cutting the foreign object. This avoids the cutting saw blade extending too far and directly touching the cable, reducing the probability of cable damage. After cutting, releasing the rope causes the protective plate to reset under elasticity, and the saw blade retracts, effectively ensuring the accuracy of the cutting operation. This invention solves the defects of existing simple tools, such as rigid connections, poor operating accuracy, and easy cable scratching, and reduces the probability of secondary failures. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Enlarged view of A in the middle; Figure 3 for Figure 1 A magnified view of B in the middle. Detailed Implementation

[0018] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments: like Figures 1 to 3As shown, the foreign object removal device for a multi-functional overhead power distribution line according to the present invention includes an insulating rod 1, a mounting frame 2 on the top of the insulating rod 1, a motor 3 and a battery 4 supplying power to the motor 3 on the mounting frame 2, wherein the motor 3 can be remotely turned on and off, and the battery 4 is provided with a charging port for timely replenishment of power; a cutting saw blade 5 is connected to the shaft of the motor 3, and a protective plate 6 is elastically provided on the mounting frame 2, with a clearance groove 7 opened at the top of the protective plate 6 corresponding to the position of the cutting saw blade 5; in the initial state, the top of the cutting saw blade 5 does not protrude from the clearance groove 7; a pulling rope 8 is provided on the protective plate 6, extending to the lower part of the insulating rod 1. During operation, the pulling rope 8 can be pulled down to move the protective plate 6 downward according to the type and thickness of the foreign object wrapped on the cable, so that the cutting saw blade 5 extends out of the clearance groove 7 to a certain height, and the motor 3 is turned on to drive the cutting saw blade 5 to rotate and cut the foreign object from the bottom of the cable, which can avoid the cutting saw blade 5 extending too far and directly touching the cable, reducing the probability of cable damage. To improve operational accuracy and ensure the stability of the device during operation, the present invention also provides a bracket 9 on the mounting frame 2 on one side of the protective plate 6. The bracket 9 is preferably located on the rear side of the mounting frame 2. An auxiliary grooved wheel 10 is rotatably mounted on the bracket 9. The auxiliary grooved wheel 10 is made of insulating material and is positioned higher than the protective plate 6. The auxiliary grooved wheel 10 and the tangent of the cutting saw blade 5 are on the same extension line. In use, the auxiliary grooved wheel 10 is hung on the cable, the protective plate 6 abuts against the bottom of the cable, and the pulling rope 8 is pulled down to control the cutting saw blade 5 to extend from the clearance groove 7, thus cutting foreign objects. Due to the auxiliary effect of the grooved wheel 10, the relative stability of the device during operation is ensured, thereby improving operational accuracy. Furthermore, the auxiliary grooved wheel 10 facilitates stable advancement of the cutting operation along the length of the cable, reducing fatigue caused by the operator's hand lifting and improving operational convenience.

[0019] Furthermore, in this invention, the mounting frame 2 and the protective plate 6 are elastically connected by a spring 11. Preferably, the mounting frame 2 is provided with a guide rod 12, and the spring 11 is sleeved on the guide rod 12, with both ends fixedly connected to the protective plate 6 and the mounting frame 2 respectively. The protective plate 6 is provided with a guide hole for the guide rod 12 to pass through. The provision of the guide rod 12 can effectively ensure the stability of the vertical movement of the protective plate 6.

[0020] Furthermore, in this invention, the length of the insulating rod 1 is adjustable. The length of the insulating rod 1 can be adjusted using the form of a sleeve as in the prior art, with a locking head at the end, or by using bolts for locking. The specific configuration can be matched according to actual needs. The adjustable length of the insulating rod 1 can increase the working height and expand the working range. An adjustment frame 13 is slidably mounted on the insulating rod 1, and a winding wheel 14 is mounted on the adjustment frame 13. The pull rope 8 is wound on the winding wheel 14. As the insulating rod 1 is extended and adjusted, the pull rope 8 wound on the winding wheel 14 can be pulled out to cooperate with the adjustment operation of the insulating rod 1. A crank 15 is mounted on the adjustment frame 13 to control the rotation of the winding wheel 14.

[0021] A handle 16 is slidably mounted on the adjusting frame 13. An arc-shaped positioning plate 17 is mounted on the top of the handle 16. In the initial state, the positioning plate 17 is fitted onto the wheel wall on one side of the winding wheel 14. The end face of the positioning plate 17 that contacts the wheel arm of the winding wheel 14 is provided with meshing positioning teeth 18 and positioning grooves 19. At this time, the winding wheel 14 is positioned and cannot rotate, thus ensuring the stability of the pulling rope 8. When it is necessary to adjust the protective plate 6 to move down, the handle 16 can be moved down. When it is necessary to wind or release the pulling rope 8, the handle 16 can be moved up to move the positioning plate 17 above the wheel wall, thereby releasing the positioning of the winding wheel 14.

[0022] A positioning ring 20 is slidably mounted on the insulating rod 1 below the adjusting frame 13. A locking bolt 21 is threaded onto the positioning ring 20. The positioning ring 20 limits the downward movement of the adjusting frame 13, thereby controlling the downward movement distance of the protective plate 6. Simply controlling the contact between the adjusting frame 13 and the positioning ring 20 ensures that the height of the cutting saw blade 5 extending from the clearance groove 7 remains constant, further improving operational accuracy. Preferably, the insulating rod 1 is equipped with scale lines for intuitive control of the downward movement distance of the limiting plate. Since the required extension length of the cutting saw blade 5 is small, the scale lines should be accurate to at least millimeters.

[0023] In addition, the interior of the insulating rod 1 is hollow, and through holes 22 are provided at one end near the winding wheel 14 and the other end near the protective plate 6. The pulling rope 8 passes through the lower through hole 22 into the insulating rod 1 and exits through the upper through hole 22 to connect with the protective plate 6. This allows the pulling rope 8 to be stored and prevents it from being exposed and affecting operation or causing safety hazards.

[0024] Furthermore, in this invention, a drive shaft 23 is coaxially mounted on the cutting saw blade 5. One end of the drive shaft 23 extends movably from the mounting bracket 2, and multiple collecting rods 24 are arranged along its circumference. Each collecting rod 24 has protruding spikes. The collecting rods 24 can be used to reel in foreign objects when the motor 3 rotates, effectively pulling the foreign objects directly off the cable. The collecting rods 24 or the cutting saw blade 5 can be flexibly selected depending on the specific type of foreign object and its entanglement with the cable. The two can complement each other and be used in conjunction to further enhance the practicality of this invention. The spikes on the collecting rods 24 increase friction with the foreign object, enabling smooth reeling in of it.

[0025] This invention utilizes a motor 3 to drive the cutting saw blade 5, powered by a battery 4, eliminating the need for manual hooking or cutting, significantly reducing the labor intensity of operators. The pull rope 8 extends to the lower part of the insulating rod 1, allowing operators to control and cut the protective plate 6 from the ground. The operation is simple and intuitive, requiring no highly specialized technical skills, thus solving the problem of high operational barriers and difficulty in promoting new equipment at the grassroots level. Furthermore, compared to traditional methods that require large equipment and cumbersome procedures, this device is portable and quick to deploy, significantly shortening troubleshooting time and improving foreign object removal efficiency, balancing low cost and practicality. In addition, the cutting saw blade 5 can not only cut and disassemble foreign objects on cables but also prune branches posing safety hazards near cables, making it widely applicable.

Claims

1. A foreign object removal device for a multi-functional assembly of overhead power distribution lines, characterized in that: The device includes an insulating rod, a mounting bracket at the top of which is mounted on a motor and a battery supplying power to the motor. A cutting saw blade is connected to the motor's shaft. A protective plate is elastically mounted on the mounting bracket, and a clearance groove is formed at the top of the protective plate corresponding to the cutting saw blade. In the initial state, the top of the cutting saw blade does not protrude from the clearance groove. A pulling rope is mounted on the protective plate, extending to the lower part of the insulating rod.

2. The foreign object removal device of the multi-functional assembly of overhead power distribution lines according to claim 1, characterized in that: The mounting bracket and the protective plate are elastically connected by springs.

3. The foreign object removal device for the multi-functional assembly of overhead power distribution lines according to claim 2, characterized in that: The mounting bracket is provided with a guide rod, and the spring is sleeved on the outside of the guide rod. Both ends are fixedly connected to the protective plate and the mounting bracket, respectively. The protective plate is provided with a guide hole for the guide rod to pass through.

4. The foreign object removal device of the multi-functional assembly of overhead power distribution lines according to claim 1, characterized in that: The insulating rod is adjustable in length, and an adjustment frame is slidably mounted on the insulating rod. A winding wheel is mounted on the adjustment frame, and the pulling rope is wound onto the winding wheel. A crank is mounted on the adjustment frame to control the rotation of the winding wheel.

5. The foreign object removal device of the multi-functional assembly of overhead power distribution lines according to claim 4, characterized in that: The adjustment frame is slidably provided with a handle, and the top of the handle is provided with an arc-shaped positioning plate. In the initial state, the positioning plate is sleeved on the wheel wall on one side of the winding wheel; the end face of the positioning plate that contacts the wheel arm of the winding wheel is provided with mutually meshing positioning teeth and positioning grooves.

6. The foreign object removal device of the multi-functional assembly of overhead distribution lines according to claim 5, characterized in that: A positioning ring is slidably disposed on the insulating rod below the adjustment frame, and a locking bolt is threaded onto the positioning ring.

7. The foreign object removal device of the multi-functional assembly of overhead distribution lines according to claim 6, characterized in that: The insulating rod is provided with scale lines.

8. The foreign object removal device of the multi-functional unit assembly for overhead distribution lines according to any one of claims 4-7, characterized in that: The insulating rod has a hollow interior, with through holes at one end near the winding reel and at the other end near the protective plate. The pulling rope passes through the lower through hole into the insulating rod and exits through the upper through hole to connect with the protective plate.

9. The foreign object removal device of the multi-functional assembly of overhead power distribution lines according to claim 1, characterized in that: The cutting saw blade is coaxially mounted with a drive shaft. One end of the drive shaft extends movably from the mounting frame, and multiple collecting rods are arranged along its circumference. Each collecting rod has a protruding spike.

10. The foreign object removal device of the multi-functional assembly of overhead power distribution lines according to claim 1, characterized in that: A bracket is provided on the mounting frame on one side of the protective plate, and an auxiliary grooved wheel is rotatably mounted on the bracket, with the auxiliary grooved wheel positioned higher than the protective plate.

Images