Portable distribution network obstacle clearing instrument

Abstract

The invention relates to the technical field of distribution network line obstacle clearing, and discloses a portable distribution network obstacle clearing instrument which comprises an insulating tube, a U-shaped block and an air pushing piece. A U-shaped plate is installed on the insulating pipe through a telescopic pipe, the U-shaped block is arranged in the U-shaped plate, a driving part for driving the U-shaped block to move towards the outside or the inside of the U-shaped plate is installed in the telescopic pipe, a shearing part is rotatably installed at one end of the U-shaped block, and two first sliding openings are formed in the surface of the U-shaped plate. The handheld length is adjusted through the telescopic pipe to adapt to different heights and operation positions, the shearing piece is composed of the hinged shear blades and can slide and move outwards to shear branches, the service life is prolonged under protection of the U-shaped plate, when thick branches are encountered, the sawing pieces on the outer sides of the shear blades can conduct sawing, foreign matter on a cable can be removed, and the cutting efficiency is improved. The clamping block can clamp a cable and push and pull the cable to remove ice, the air pushing piece on the U-shaped plate can blow off foreign matter on the shear blades and conduct buffering protection, and the whole device is compact in structure, convenient to carry and operate and capable of meeting various operation requirements.

Description

Technical Field

[0001] This invention relates to the field of power distribution line clearing technology, and in particular to a portable power distribution line clearing device. Background Technology

[0002] Distribution network lines are a crucial component of urban power transmission. They transmit electricity from substations to various user terminals via cables erected on poles. These cables are typically laid along both sides of roads to achieve extensive power coverage. With the acceleration of urbanization, urban greening has become an important measure to improve the quality of the urban environment. Therefore, planting a large number of trees along roads has become a common practice in urban planning. However, as trees continue to grow, some branches gradually extend above or near the cables. This can not only affect the normal operation of the cables but also cause safety accidents such as short circuits, posing a threat to power supply and public safety. To ensure the safe operation of distribution network lines, staff need to prune these branches regularly. Currently, when conducting line maintenance, staff usually need to carry special pruning tools to climb the poles and prune the branches extending onto the cables. In addition, cables are generally distributed in outdoor environments and are easily affected by the natural environment. In windy weather, foreign objects such as plastic bags may adhere to the cables, further affecting their safe operation.

[0003] In the maintenance of existing power distribution lines, the tree pruning tools used are mostly bulky. This results in workers facing high labor intensity and complicated operating procedures when climbing poles to approach cables and prune branches, reducing work efficiency and increasing safety risks. In addition, most power distribution lines are erected outdoors, and their cables are easily covered by lightweight foreign objects such as plastic bags when exposed to strong winds and other severe weather. However, existing tree pruning tools are inconvenient for cleaning foreign objects from cables. Currently, there is a lack of a device that can simultaneously prune branches and clean foreign objects from cables.

[0004] To address the aforementioned issues, this application proposes a portable power distribution network clearing device. Summary of the Invention

[0005] This invention proposes a portable power distribution network clearing device, which solves the problems in related technologies where tree branch trimming tools are bulky, climbing poles to trim branches is labor-intensive, complex, and risky, and there is no function to clean foreign objects from cables, and there is a lack of dedicated devices to meet the needs of trimming branches and cleaning foreign objects.

[0006] The present invention proposes a portable power distribution network clearing device, comprising an insulating tube, a U-shaped block, and an air-propelling component;

[0007] A U-shaped plate is installed on the insulating tube via a telescopic tube. The U-shaped block is set inside the U-shaped plate. A driving component is installed inside the telescopic tube to drive the U-shaped block to move outward or inward from the U-shaped plate. A shearing component is rotatably installed at one end of the U-shaped block. Two first sliding openings are opened on the surface of the U-shaped plate. One end of each of the two first sliding openings is formed with a bending opening that bends inward.

[0008] A sawing component is fixed to the outside of the shearing component, and a clamping component is fixed to the end of the shearing component;

[0009] The inner wall of the U-shaped block has a cavity, and the end of the U-shaped block near the shearing member has an air blowing hole that communicates with the cavity. The air pushing member is installed on the U-shaped plate and cooperates with the U-shaped block, and is located on the return path of the shearing member.

[0010] When the driving component moves the U-shaped block outward, the shearing component slides along the first sliding groove and the bend to perform a shearing action. When the driving component moves the U-shaped block back, the shearing component slides along the bend and the first sliding groove, gradually unfolding and returning to its original position.

[0011] As a further optimization of the present invention, the shearing component includes two shear blades. One end of the U-shaped block is rotatably engaged with two shear blades that are hinged to each other, and the two shear blades form a shearing structure. The handle ends of the two shear blades are each equipped with a sliding shaft. The two sliding shafts pass through two first sliding openings and are slidably engaged with them. The sawing component is fixed to the outside of the shear blades, the clamping component is fixed to the tip of the shear blades, and the air-pushing component is located on the return path of one of the sliding shafts.

[0012] As a further optimization of the present invention, the sawing component includes strips and saw teeth, with strips fixed to the outer sides of both shear blades, and saw teeth fixed to the outer sides of the strips.

[0013] As a further optimization of the present invention, the clamping member includes clamping blocks, and the tips of the two scissor blades are fixed with clamping blocks, and an arc-shaped opening is formed on the adjacent side of the two clamping blocks.

[0014] As a further optimization of the present invention, a plurality of balls are rolled along the arc-shaped opening on the inner wall of the clamping block.

[0015] As a further optimization of the present invention, the air-pushing component includes an air cylinder, an elastic piston, and an air guide tube. The air cylinder is installed on the surface of the U-shaped plate and located on the return path of one of the sliding shafts. The elastic piston is slidably disposed inside the air cylinder and corresponds to one of the sliding shafts. A second sliding opening is opened on the surface of the U-shaped plate between two first sliding openings. A hollow block communicating with its internal cavity is installed on the U-shaped block, and the hollow block is slidably engaged with the second sliding opening. One end of the air cylinder is connected to an air guide tube communicating with the hollow block.

[0016] As a further optimization of the present invention, the elastic piston part includes a shaft, a piston body and a spring. The piston body is slidably disposed inside the air cylinder. The shaft slides through the other end of the air cylinder and is connected to the piston body. The shaft is located on the return path of one of the sliding shafts. The spring is sleeved on the shaft and located inside the air cylinder. The two ends of the spring are respectively connected to the piston body and the inner wall of the other end of the air cylinder. The other end of the air cylinder has an opening for the piston body to slide smoothly.

[0017] As a further optimization of the present invention, the driving component is an electric push rod, the U-shaped plate is fixed at the end of the telescopic tube away from the insulating tube, the electric push rod is installed inside the telescopic tube, and the U-shaped block is connected to the electric push rod and driven by it to move outward or inward of the U-shaped plate.

[0018] As a further optimization of the present invention, the telescopic tube is inserted into the insulating tube, and the insulating tube is threaded with a bolt that presses the telescopic tube.

[0019] As a further optimization of the present invention, the outer periphery of the insulating tube is covered with an insulating layer.

[0020] The above-described technical solution of the present invention has the following beneficial technical effects:

[0021] 1. This invention allows for adjustment of the handheld part length via a telescopic tube that slides on an insulating tube, accommodating different heights and working positions. A drive mechanism within the telescopic tube drives a U-shaped block outwards, on which a shearing component consisting of two hinged scissor blades is mounted. During outward movement, the sliding shaft on the scissor blades slides within the first sliding opening of the U-shaped plate. When the scissor blades extend beyond the U-shaped plate and open, branches can be placed between them. Continuing to move the U-shaped block outwards, the sliding shaft slides into a bend, forcing it to rotate and shear the branches. After shearing, the drive mechanism causes the U-shaped block to move the scissor blades back, and the sliding shaft returns along the bend to the first sliding opening, restoring the unfolded state and retracting into the U-shaped plate for protection and extended service life. This design allows workers to easily adjust the length of the handheld part according to their height and working position, improving operational flexibility and comfort. Simultaneously, the shearing component design simplifies branch trimming operations, and under the protection of the U-shaped plate, the shearing component receives excellent protection when not in use, extending its service life.

[0022] 2. When encountering thicker branches that are difficult to cut, this invention installs a sawing component on the outside of the shear blades. In use, simply drive the U-shaped block outwards via the drive unit, causing the sliding shaft on the shear blades to move into the bend. The two shear blades then rotate and merge. At this point, the sawing component on the outside of the shear blades can be placed against the part of the branch that needs to be cut. Then, operate the insulating tube to make the sawing component on the outside of the shear blades move repeatedly on the branch. The branch can be cut by the saw teeth in the sawing component. The above design effectively solves the problem that traditional tools are difficult to cut thicker branches, expands the scope of application of this invention, enables it to meet the pruning needs of branches of different thicknesses, improves the versatility and practicality of the obstacle clearing device, and further enhances work efficiency.

[0023] 3. When strong outdoor winds cause foreign objects such as plastic bags to adhere to cables, workers hold an insulating tube and align the two open blades on the U-shaped block with the plastic bag. The drive mechanism moves the U-shaped block outwards, causing the sliding shafts on the blades to move into the bend. The two blades rotate and merge, and the clamping blocks on them also merge, clamping the plastic bag between the two clamping blocks. Then, the insulating tube is pulled downwards to remove the plastic bag from the cable. Afterwards, the drive mechanism moves the U-shaped block back, and the two blades gradually open, causing the plastic bag to fall off, completing the cleaning process. This invention allows the cable clearing device to not only trim tree branches but also remove foreign objects from cables, offering multiple uses and improving the device's functionality and efficiency. It also reduces the burden on workers carrying multiple tools and lowers operating costs.

[0024] 4. Because the clamping blocks have arc-shaped openings, two clamping blocks can be clamped onto the cable, so that the cable is placed within the arc-shaped openings of the two clamping blocks. Then, the insulating tube can be operated to push and pull the cable. In winter, ice on the cable can be removed. In addition, the inner wall of the clamping blocks is equipped with rolling balls, which allows the clamping blocks to move on the cable, making it easy to adjust the position of pulling the cable, improving the flexibility of operation, and further enhancing the functionality and practicality of the invention in winter cable maintenance.

[0025] 5. This invention installs an air-pushing component on a U-shaped plate, located on the return path of the shearing component. After pruning branches, the driving component drives the U-shaped block to return. The sliding shaft on the shear blade moves within the first sliding opening and contacts the elastic piston part of the air-pushing component. As the return continues, the hollow block on the U-shaped block slides within the second sliding opening. The sliding shaft pushes the elastic piston part to slide within the air cylinder. Gas enters the hollow block through the air guide pipe, then enters the cavity of the U-shaped block, and finally exits from the air blowing hole, blowing away foreign objects such as leaves from the surface of the shear blade. The air-pushing component can also prevent the U-shaped block from returning too quickly, avoiding damage to the shear blade due to excessive opening speed. Through the design of the air-pushing component, foreign objects on the surface of the shearing component can be effectively removed, keeping it clean and avoiding affecting subsequent operations, improving work quality, and also playing a buffering and protective role.

[0026] 6. This invention integrates the shearing component onto a U-shaped plate, and the telescopic tube connected to the U-shaped plate can slide within the insulating tube to adjust the length of the handheld part, facilitating operation by staff. This design makes the entire device compact and small in size, easy for staff to carry and store, reducing the space occupied by the obstacle clearing device. At the same time, the adjustable design of the telescopic tube and the insulating tube further improves the portability and operational flexibility of the obstacle clearing device, meeting the needs of different working environments and staff, and enhancing the practicality and user experience of the obstacle clearing device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a portable power distribution network clearing device proposed in this invention;

[0028] Figure 2 This is a schematic diagram of the cooperative structure of the U-shaped plate, shearing component, and thruster of the present invention;

[0029] Figure 3 For the present invention Figure 2 Overall top view;

[0030] Figure 4 For the present invention Figure 2 Overall side view;

[0031] Figure 5 This is a schematic diagram of the mating structure of the U-shaped block and the shearing component of the present invention;

[0032] Figure 6 For the present invention Figure 5 Enlarged view of A in the middle;

[0033] Figure 7 This is a schematic diagram of the sawing component of the present invention;

[0034] Figure 8 This is a schematic diagram of the structure of the clamping component of the present invention;

[0035] Figure 9 This is a schematic diagram of the structure of the thruster of the present invention;

[0036] Figure 10 This is an internal cross-sectional view of the air cylinder of the present invention.

[0037] Reference numerals: 1. Insulating tube; 101. Telescopic tube; 102. Electric push rod; 103. Bolt; 2. U-shaped plate; 21. First sliding opening; 211. Bending opening; 22. Second sliding opening; 3. U-shaped block; 31. Air blowing hole; 32. Hollow block; 4. Shearing component; 41. Scissor blade; 42. Sliding shaft; 5. Sawing component; 51. Strip; 52. Saw teeth; 6. Clamping component; 61. Clamping block; 62. Ball bearing; 7. Air pushing component; 71. Air cylinder; 711. Opening; 72. Elastic piston part; 721. Shaft; 722. Piston body; 723. Spring; 73. Air guide tube. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0039] like Figure 1-10 As shown, the portable power distribution network clearing device proposed in this invention includes an insulating tube 1, a U-shaped block 3, and an air-pushing component 7;

[0040] A U-shaped plate 2 is installed on the insulating tube 1 via a telescopic tube 101. A U-shaped block 3 is set inside the U-shaped plate 2. A driving component is installed inside the telescopic tube 101 to drive the U-shaped block 3 to move outward or inward from the U-shaped plate 2. A shearing component 4 is rotatably installed at one end of the U-shaped block 3. Two first sliding mouths 21 are opened on the surface of the U-shaped plate 2. One end of each of the two first sliding mouths 21 forms a bending mouth 211 that bends inward.

[0041] A sawing piece 5 is fixed to the outside of the shearing piece 4, and a clamping piece 6 is fixed to the end of the shearing piece 4;

[0042] The inner wall of the U-shaped block 3 has a cavity, and the end of the U-shaped block 3 near the shearing member 4 has an air blowing hole 31 that communicates with the cavity. The air pushing member 7 is installed on the U-shaped plate 2 and cooperates with the U-shaped block 3, and is located on the return path of the shearing member 4.

[0043] When the driving component drives the U-shaped block 3 to move outward, the shearing component 4 slides along the first sliding opening 21 and the bending opening 211 to perform a shearing action. When the driving component drives the U-shaped block 3 to move back, the shearing component 4 slides along the bending opening 211 and the first sliding opening 21 to gradually unfold and return to its original position.

[0044] When the driving component drives the U-shaped block 3 to move outward from the U-shaped plate 2, the shearing component 4 will slide along the first sliding opening 21 on the surface of the U-shaped plate 2. When it slides to the bend opening 211 at the end of the first sliding opening 21, under the guidance of the bend opening 211, the shearing component 4 completes the shearing action and can quickly cut off obstacles such as tree branches. When the driving component drives the U-shaped block 3 to move back, the shearing component 4 slides along the bend opening 211 and the first sliding opening 21 and gradually unfolds to return to its original position, which is convenient for the next operation. At the same time, the air pusher 7 is located on the return path of the shearing component 4 and can push the air pusher 7 when the shearing component 4 moves back, and deliver the gas in the air pusher 7 to the cavity in the U-shaped block 3, and then discharge it through the air blowing hole 31 to blow air on the shearing component 4 to remove the debris on the shearing component 4.

[0045] In this embodiment, the shearing component 4 includes two shear blades 41. One end of the U-shaped block 3 is rotatably engaged with two mutually hinged shear blades 41, and the two shear blades 41 form a shearing structure. A sliding shaft 42 is installed at the handle end of each of the two shear blades 41. The two sliding shafts 42 pass through two first sliding openings 21 and slide in engagement with them. The sawing component 5 is fixed to the outside of the shear blades 41, the clamping component 6 is fixed to the tip of the shear blades 41, and the air-pushing component 7 is located on the return path of one of the sliding shafts 42. When the U-shaped block 3 moves, it drives the shear blades 41 to move synchronously, and the sliding shaft 42 at the handle end of the shear blades 41... The first sliding opening 21 and the bending opening 211 slide within each other. During the sliding process, due to the special shape of the bending opening 211, the two scissor blades 41 are forced to rotate around the hinge point to achieve the cutting action, which can effectively cut the branches. The sawing part 5 is fixed on the outside of the scissor blades 41 and can assist in sawing thicker branches when cutting is difficult. The clamping part 6 is fixed on the tip of the scissor blades 41 and can clamp foreign objects. The air pusher 7 is located on the return path of one of the sliding shafts 42. When the sliding shaft 42 returns, it triggers the air pusher 7 to prepare for subsequent air blowing to clear debris. This design enriches the function of the obstacle clearer, enabling it to cope with different types of obstacles and making it more applicable.

[0046] In this embodiment, the sawing component 5 includes strips 51 and saw teeth 52. Strips 51 are fixed to the outer sides of both shear blades 41, and saw teeth 52 are fixed to the outer sides of the strips 51. When encountering thicker branches that cannot be directly cut by the shearing component 4, the operator can operate the insulating tube 1 to make the saw teeth 52 fit against the branch. By moving the insulating tube 1, the saw teeth 52 are driven to reciprocate on the branch, and the sharp edges of the saw teeth 52 are used to cut the branch. This structure can effectively make up for the insufficient shearing ability of the shearing component 4 to cut thick branches, expand the application range of the obstacle clearing device, and improve the ability to handle branches of different thicknesses.

[0047] In this embodiment, the clamping member 6 includes clamping blocks 61. The tips of the two scissor blades 41 are fixed with clamping blocks 61, and the two clamping blocks 61 have arc-shaped openings on adjacent sides. When the scissor blades 41 are closed, the two clamping blocks 61 move closer together. Since the adjacent sides of the clamping blocks 61 have arc-shaped openings, the arc-shaped openings can better fit the shape of the cable or foreign object, firmly clamping foreign objects such as plastic bags between the two arc-shaped openings. The staff can pull the clearing device by holding the insulating tube 1 to remove the foreign object from the cable.

[0048] It should be noted that the two clamping blocks 61 can clamp onto the cable, so that the cable is placed in the arc-shaped opening of the two clamping blocks 61. Then the insulating tube 1 can be operated to push and pull the cable. In winter, the ice on the cable can be removed.

[0049] In this embodiment, multiple balls 62 are rolled along the arc-shaped opening on the inner wall of the clamping block 61. When the operator pushes or pulls the obstacle clearing device, the balls 62 roll within the arc-shaped opening, transforming the sliding friction between the clamping block 61 and the cable into rolling friction, thus reducing the friction between the two. This allows the operator to more easily adjust the position of the clamping block 61 on the cable, facilitating cleaning or operation of different parts of the cable. It also allows for more flexible movement when clearing ice from the cable in winter, improving operational convenience.

[0050] In this embodiment, the air-pushing component 7 includes an air cylinder 71, an elastic piston part 72, and an air guide pipe 73. The air cylinder 71 is installed on the surface of the U-shaped plate 2 and located on the return path of one of the sliding shafts 42. The elastic piston part 72 is slidably disposed inside the air cylinder 71 and corresponds to one of the sliding shafts 42. A second sliding opening 22 is opened on the surface of the U-shaped plate 2, located between two first sliding openings 21. A hollow block 32 communicating with its internal cavity is installed on the U-shaped block 3, and the hollow block 32 is slidably engaged with the second sliding opening 22. One end of the air cylinder 71 is connected to the air guide pipe 73 communicating with the hollow block 32. When the sliding shaft 42 is in the return process... When the gas cylinder contacts the elastic piston 72 and continues to push, the elastic piston 72 slides inside the air cylinder 71, pushing the gas inside the air cylinder 71 to be transported to the hollow block 32 through the air guide pipe 73. The gas then enters the cavity inside the U-shaped block 3 and is finally discharged from the air blowing hole 31, blowing away the leaves, twigs and other debris adhering to the surface of the shearing part 4. At the same time, the hollow block 32 slides inside the second sliding port 22, ensuring the stability of the gas delivery channel when the U-shaped block 3 moves. This design realizes the automatic air blowing and cleaning function, eliminating the need for manual cleaning of the shearing part 4, saving time, and ensuring the cleanliness of the shearing part 4 and the reliability of subsequent work.

[0051] In this embodiment, the elastic piston part 72 includes a shaft 721, a piston body 722, and a spring 723. The piston body 722 is slidably disposed inside the air cylinder 71. The shaft 721 slides through the other end of the air cylinder 71 and is connected to the piston body 722. The shaft 721 is located on the return path of one of the sliding shafts 42. The spring 723 is sleeved on the shaft 721 and located inside the air cylinder 71. The two ends of the spring 723 are respectively connected to the piston body 722 and the inner wall of the other end of the air cylinder 71. The other end of the air cylinder 71 has an opening 711 for the piston body 722 to slide smoothly. When the sliding shaft 42 moves back and strikes the shaft 721... At time 1, the shaft 721 pushes the piston body 722 to slide inside the air cylinder 71, and the spring 723 is stretched. The sliding piston body 722 pushes the gas in the air cylinder 71 to be transported through the air guide tube 73. When the return force of the sliding shaft 42 disappears, the spring 723 returns to its deformation, pushing the piston body 722 and the shaft 721 to reset, preparing for the next blowing. The opening 711 at the other end of the air cylinder 71 ensures that the piston body 722 slides smoothly and avoids abnormal air pressure in the air cylinder 71 from affecting the movement of the piston body 722. This structure realizes elastic reset, so that the pushing component 7 can be reused, ensuring the continuity and stability of the blowing and cleaning function.

[0052] It should be noted that, under the elastic action of the elastic piston part 72, the present invention can prevent the driving member from driving the U-shaped block 3 to move back too fast, which would cause the two scissor blades 41 to open too fast and damage them.

[0053] In this embodiment, the driving component is an electric push rod 102. The U-shaped plate 2 is fixed at the end of the telescopic tube 101 away from the insulating tube 1. The electric push rod 102 is installed inside the telescopic tube 101. The U-shaped block 3 is connected to the electric push rod 102 and is driven by it to move outward or inward of the U-shaped plate 2. When the electric push rod 102 extends, it pushes the U-shaped block 3 to move outward of the U-shaped plate 2, thereby driving the shearing component 4 and other components to move to achieve shearing, clamping and other functions. When the electric push rod 102 retracts, it pulls the U-shaped block 3 to move inward of the U-shaped plate 2, so that the shearing component 4 unfolds and returns to its original position.

[0054] In this embodiment, the telescopic tube 101 is inserted into the insulating tube 1, and the insulating tube 1 is threaded with a bolt 103 that presses the telescopic tube 101. The operator can pull the telescopic tube 101 to slide inside the insulating tube 1 according to the working height and their own operating habits, and adjust the length of the entire handheld part of the obstacle clearing device. After the length is adjusted to a suitable position, the bolt 103 threaded on the insulating tube 1 is rotated so that the end of the bolt 103 presses against the surface of the telescopic tube 101. The telescopic tube 101 and the insulating tube 1 are fixed relative to each other by friction, preventing the telescopic tube 101 from sliding during operation. This design allows the length of the obstacle clearing device to be flexibly adjusted to adapt to different working environments and the needs of operators, improving the comfort and flexibility of operation. This adjustable design also makes it easy for operators to carry the obstacle clearing device.

[0055] In this embodiment, the outer periphery of the insulating tube 1 is covered with an insulating layer. Since the clearing operation of the distribution network line is carried out in an electric environment, the insulating layer can effectively block the current from being conducted through the insulating tube 1 to the workers' hands, thus preventing the workers from being electrocuted. The insulating layer has good insulation performance and can withstand a certain voltage, providing safety for the workers and reducing the risk of electric shock when the workers are working on or near live lines, thus ensuring the safety of the operation.

[0056] The specific working principle of this invention is as follows:

[0057] Based on the working height and their own situation, the workers loosen the bolt 103 on the insulating tube 1, pull the telescopic tube 101 to slide inside the insulating tube 1, adjust the obstacle clearing device to the appropriate length, and then tighten the bolt 103 to fix the telescopic tube 101.

[0058] The electric push rod 102 inside the telescopic tube 101 is activated. The electric push rod 102 pushes the U-shaped block 3 to move outward from the U-shaped plate 2. The U-shaped block 3 drives the two hinged scissor blades 41 to move. The sliding shaft 42 at the handle end of the scissor blades 41 slides in the first sliding opening 21 of the U-shaped plate 2. When the sliding shaft 42 enters the bending opening 211, under the guidance of the bending opening 211, the two scissor blades 41 rotate and close around the hinge point to cut the branches located between the scissor blades 41.

[0059] If the branch is too thick to cut, continue to push the U-shaped block 3 by the electric push rod 102 so that the saw teeth 52 on the outer strip 51 of the shear blade 41 fit the branch. The staff moves the obstacle clearing device and uses the saw teeth 52 to cut the branch back and forth.

[0060] When there are foreign objects such as plastic bags on the cable, the electric push rod 102 pushes the U-shaped block 3, causing the scissor blades 41 to open and align with the foreign object. Then, the electric push rod 102 is controlled to move the U-shaped block 3 back appropriately, and the scissor blades 41 close. The clamping block 61 at the tip of the blade clamps the foreign object through the arc-shaped opening. The operator pulls the insulating tube 1 to remove the foreign object from the cable. Afterward, the electric push rod 102 drives the U-shaped block 3 back, and the scissor blades 41 open to release the foreign object. If it is necessary to adjust the clamping position, the ball bearing 62 in the arc-shaped opening of the clamping block 61 can reduce friction and facilitate movement.

[0061] After shearing or sawing, the electric push rod 102 drives the U-shaped block 3 to move back, the sliding shaft 42 on the shear blade 41 moves back and hits the central shaft 721 of the air pusher 7, pushing the piston body 722 to slide in the air cylinder 71 so that the gas enters the cavity of the U-shaped block 3 through the air guide pipe 73 and the hollow block 32, and then is ejected from the air blowing hole 31 to blow away the debris on the shear blade 41.

[0062] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A portable power distribution network obstacle clearing device, characterized in that, Includes an insulating tube (1), a U-shaped block (3), and a thruster (7); A U-shaped plate (2) is installed on the insulating tube (1) through a telescopic tube (101). The U-shaped block (3) is set inside the U-shaped plate (2). A driving component is installed inside the telescopic tube (101) to drive the U-shaped block (3) to move outward or inward from the U-shaped plate (2). A shearing component (4) is rotatably installed at one end of the U-shaped block (3). Two first sliding mouths (21) are opened on the surface of the U-shaped plate (2). One end of each of the two first sliding mouths (21) is formed with a bending mouth (211) that bends inward. A sawing piece (5) is fixed to the outside of the shearing piece (4), and a clamping piece (6) is fixed to the end of the shearing piece (4). The inner wall of the U-shaped block (3) is provided with a cavity, and the end of the U-shaped block (3) near the shearing member (4) is provided with an air blowing hole (31) that communicates with the cavity. The air pushing member (7) is installed on the U-shaped plate (2) and cooperates with the U-shaped block (3), and is located on the return path of the shearing member (4). When the driving component drives the U-shaped block (3) to move outward, the shearing component (4) slides along the first sliding opening (21) and the bending opening (211) to perform a shearing action. When the driving component drives the U-shaped block (3) to move back, the shearing component (4) slides along the bending opening (211) and the first sliding opening (21) to gradually unfold and restore its original position.

2. The portable power distribution network clearing device according to claim 1, characterized in that, The shearing component (4) includes two shear blades (41). One end of the U-shaped block (3) is rotatably fitted with two shear blades (41) that are hinged to each other, and the two shear blades (41) form a shearing structure. The handle ends of the two shear blades (41) are each equipped with a sliding shaft (42). The two sliding shafts (42) pass through two first sliding openings (21) and slide with them respectively. The sawing component (5) is fixed on the outside of the shear blades (41). The clamping component (6) is fixed on the tip of the blades (41). The air-pushing component (7) is located on the return path of one of the sliding shafts (42).

3. A portable power distribution network clearing device according to claim 2, characterized in that, The sawing component (5) includes strips (51) and saw teeth (52). Strips (51) are fixed to the outer side of both shear blades (41), and saw teeth (52) are fixed to the outer side of the strips (51).

4. A portable power distribution network obstacle clearing device according to claim 2, characterized in that, The clamping member (6) includes a clamping block (61), and the tips of the two scissor blades (41) are fixed with clamping blocks (61). An arc-shaped opening is formed on the adjacent side of the two clamping blocks (61).

5. A portable power distribution network clearing device according to claim 4, characterized in that, The inner wall of the clamping block (61) is fitted with a plurality of ball bearings (62) that roll along the arc-shaped opening.

6. A portable power distribution network obstacle clearing device according to claim 2, characterized in that, The air-pushing component (7) includes an air cylinder (71), an elastic piston part (72), and an air guide pipe (73). The air cylinder (71) is installed on the surface of the U-shaped plate (2) and located on the return path of one of the sliding shafts (42). The elastic piston part (72) is slidably disposed inside the air cylinder (71) and corresponds to one of the sliding shafts (42). The surface of the U-shaped plate (2) is provided with a second sliding port (22) located between two first sliding ports (21). A hollow block (32) communicating with its internal cavity is installed on the U-shaped block (3), and the hollow block (32) is slidably engaged with the second sliding port (22). One end of the air cylinder (71) is connected to an air guide pipe (73) communicating with the hollow block (32).

7. A portable power distribution network clearing device according to claim 6, characterized in that, The elastic piston part (72) includes a shaft (721), a piston body (722), and a spring (723). The piston body (722) is slidably disposed inside the air cylinder (71). The shaft (721) slides through the other end of the air cylinder (71) and is connected to the piston body (722). The shaft (721) is located on the return path of one of the sliding shafts (42). The spring (723) is sleeved on the shaft (721) and located inside the air cylinder (71). The two ends of the spring (723) are respectively connected to the piston body (722) and the inner wall of the other end of the air cylinder (71). The other end of the air cylinder (71) is provided with an opening (711) for the piston body (722) to slide smoothly.

8. A portable power distribution network clearing device according to claim 1, characterized in that, The driving component is an electric push rod (102). The U-shaped plate (2) is fixed at the end of the telescopic tube (101) away from the insulating tube (1). The electric push rod (102) is installed inside the telescopic tube (101). The U-shaped block (3) is connected to the electric push rod (102) and is driven by it to move outward or inward to the U-shaped plate (2).

9. A portable power distribution network obstacle clearing device according to claim 1, characterized in that, The telescopic tube (101) is inserted into the insulating tube (1), and the insulating tube (1) is threaded with a bolt (103) that presses the telescopic tube (101).

10. A portable power distribution network clearing device according to claim 1, characterized in that, The outer periphery of the insulating tube (1) is covered with an insulating layer.

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