Wire stripper for electric power construction

Abstract

The application relates to the technical field of power equipment, and discloses a wire stripper for power construction, which comprises a fixing cylinder, the inner side wall of the fixing cylinder is rotationally connected with a rotating tooth ring, three annularly arranged sealing cavities and three annularly arranged arc-shaped oil cavities are arranged in the rotating tooth ring, three annularly arranged cutting mechanisms are inserted into the inner side wall of the rotating tooth ring, the inner walls of the three arc-shaped oil cavities on the counterclockwise side are all inserted with adjusting mechanisms, and the opposite sides of the three adjusting mechanisms are all welded with fixing mechanisms. Through the opposite movement of the arc-shaped oil cavities and the extrusion piston, the hydraulic oil in the arc-shaped oil cavities enters the sealing cavities through the oil pipeline, extrudes the sealing piston downward, drives the sealing piston, the movable rod and the blade to move towards the cable, the blade extends into the cable, when the rotating tooth ring drives the blade to rotate around the cable, the blade can cut the outer skin of the cable, so that the effect of cutting the outer skin of the cable is achieved.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, specifically to a wire stripper used in power construction. Background Technology

[0002] Electrical engineering is related to the production, transmission, and distribution of electrical energy. In a broader sense, it also includes engineering projects that use electricity as a power source and energy source in various fields. It can also be understood as power transmission and transformation expansion projects. Electrical equipment, such as wire strippers, is often needed in the electrical engineering industry.

[0003] A wire stripper is a device used to strip cables and wires. Existing wire strippers require power workers to manually control the cutting depth of the blades, often resulting in over-stripping and cutting off the conductor core. This often requires workers to strip the wire multiple times, wasting both their time and the cable itself. Therefore, we have proposed a wire stripper for power construction. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a wire stripper for power construction, which has the advantage of automatically adjusting the cutting depth of the blade according to the thickness of the outer sheath, effectively preventing the conductor from being cut off.

[0006] (II) Technical Solution

[0007] To achieve its technical objectives, this invention employs the following technical solution: a wire stripper for power construction, comprising a fixed cylinder, wherein three annularly arranged arc-shaped grooves are provided on both the front and rear inner walls of the fixed cylinder; a drive wheel is rotatably connected to the top of the fixed cylinder; a rotating gear ring is rotatably connected to the inner side wall of the fixed cylinder; the rotating gear ring has three annularly arranged sealing cavities and three annularly arranged arc-shaped oil cavities inside; three annularly arranged cutting mechanisms are inserted into the inner side wall of the rotating gear ring; an adjustment mechanism is inserted into the inner wall of each of the three arc-shaped oil cavities on the counterclockwise side; and a fixing mechanism is welded to the opposite side of each of the three adjustment mechanisms.

[0008] As an optimization, all three cutting mechanisms include a movable rod, with a blade welded to the opposite side of each of the three movable rods, and a sealing piston welded to the opposite side of each of the three movable rods.

[0009] As an optimization, the movable rod is equipped with a return spring on its exterior, which serves to press the sealing piston away from the blade. The sealing piston is located inside the sealing cavity.

[0010] As an optimization, all three adjustment mechanisms include an arc-shaped rod, and a compression piston is welded to the clockwise side of each of the three arc-shaped rods.

[0011] As an optimization, the extrusion piston is located in the arc-shaped oil cavity, and the size of the extrusion piston is adapted to the arc-shaped oil cavity. Oil passages are provided between the sealing cavity and its adjacent arc-shaped oil cavity. The interior of the arc-shaped oil cavity is filled with hydraulic oil. When the extrusion piston moves in the arc-shaped oil cavity, it will squeeze the hydraulic oil into the sealing cavity through the oil passages. The drive wheel meshes with the rotating gear ring. Each time the drive wheel is started, it will drive the rotating gear ring to rotate one revolution.

[0012] As an optimization, the fixing mechanism includes connecting rods, with sliders welded to the opposite sides of the three connecting rods, locking rods inserted into the front and back of the sliders, magnets welded to the opposite sides of the locking rods, electromagnets welded to the inner walls of the opposite sides of the three sliders, compression balls slidably connected inside the three connecting rods, magnetic plates welded to the opposite sides of the three compression balls, and top rods inserted into the front and back of the three connecting rods, with arc-shaped blocks welded to the opposite sides of the top rods.

[0013] As an optimization, the locking rod is located in the arc-shaped sliding groove. When the rotating gear ring rotates, the locking rod and the arc-shaped sliding groove allow relative sliding between the rotating gear ring and the fixing mechanism and the adjusting mechanism. A connecting spring is welded between the two magnetic blocks to squeeze the magnetic blocks to the opposite side. The magnetism of the magnetic blocks is opposite to that of the electromagnet. Support springs are welded to the opposite sides of the three squeezing balls to drive the squeezing balls to reset. Squeezing springs are sleeved on the outside of the top rod to drive the top rod to reset. The magnetism of the magnetic plate is the same as that of the electromagnet. When the electromagnet is energized, it can attract the magnetic blocks through magnetism and also generate a repulsive force on the magnetic plate. A wire is connected between the electromagnet and its adjacent blade. A power supply is connected in series between the electromagnets. When the power supply is first turned on, the electromagnet is in an open circuit state. When the three blades come into contact with the guide core, the blades and the guide core become conductors, thereby forming a closed circuit between the three electromagnets. The electromagnet generates magnetism when energized.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a wire stripper for power construction, which has the following advantages:

[0016] 1. This wire stripper for power construction works by placing a fixed sleeve on the cable. The drive wheel drives the rotating gear ring to rotate counterclockwise. As the rotating gear ring rotates, it drives the cutting mechanism and the fixing mechanism to rotate. The locking rod slides in the arc-shaped groove. When the locking rod slides to the end of the arc-shaped groove on the counterclockwise side, the locking rod will be locked by the arc-shaped groove, thus preventing the fixing mechanism from rotating with the adjusting mechanism and the rotating gear ring. The rotating gear ring continues to rotate, causing the arc-shaped oil chamber to move towards the squeezing piston. The hydraulic oil in the arc-shaped oil chamber enters the sealing chamber through the oil pipe, squeezing the sealing piston downwards. This causes the sealing piston, the movable rod, and the blade to move towards the cable. The blade extends into the cable. When the rotating gear ring drives the blade to rotate around the cable, the blade will cut the outer sheath of the cable, thus achieving the effect of cutting the cable sheath.

[0017] 2. This wire stripper used in power construction uses a wire connected between an electromagnet and a blade. When the blade comes into contact with the conductor of the cable, the conductor and the blade become conductors, forming a closed circuit between the three electromagnets. This causes the electromagnets to be energized and generate magnetism. When energized, the electromagnets attract a magnetic block, causing the locking rod to disengage from the arc-shaped groove. The arc-shaped groove no longer prevents the movement of the fixing mechanism. At the same time, the electromagnets generate a repulsive force on the magnetic plate, which in turn drives the compression ball to move closer to the arc-shaped block, compressing the arc-shaped block. This causes the push rod to extend from the connecting rod, and the push rod tightly compresses the rotating gear ring. The inner wall of the cable sheath is fixed so that the adjusting mechanism and the fixing mechanism are relatively stationary with respect to the rotating gear ring. When the rotating gear ring continues to rotate and drives the blade to cut the cable sheath, the extension length of the blade no longer changes. This achieves the effect of automatically adjusting the cutting depth of the blade according to the thickness of the sheath, without damaging the cable core. The drive wheel stops when it drives the rotating gear ring to rotate one revolution, ensuring that the sheath can be completely cut off, which facilitates the subsequent separation of the core and the sheath. When the power supply on the electromagnet is turned off, the electromagnet is de-energized, the magnetism disappears, and the cutting mechanism, fixing mechanism, and adjusting mechanism will reset under the action of each spring. Attached Figure Description

[0018] Figure 1 This is a front view of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of section A in the middle;

[0020] Figure 3 For the present invention Figure 1 Enlarged schematic diagram of section B;

[0021] Figure 4 For the present invention Figure 1 Enlarged schematic diagram of section C in the middle;

[0022] Figure 5 For the present invention Figure 4Top sectional view of the connecting rod and slider structure;

[0023] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the fixed mechanism.

[0024] In the diagram: 1. Fixed cylinder; 11. Arc-shaped groove; 2. Drive wheel; 3. Rotating gear ring; 31. Sealing cavity; 32. Arc-shaped oil cavity; 4. Cutting mechanism; 41. Movable rod; 42. Blade; 43. Sealing piston; 5. Adjusting mechanism; 51. Arc-shaped rod; 52. Extrusion piston; 6. Fixing mechanism; 61. Connecting rod; 62. Slider; 63. Clamping rod; 64. Magnetic block; 65. Electromagnet; 66. Extrusion ball; 67. Magnetic plate; 68. Top rod; 69. Arc-shaped block. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1:

[0027] Please see Figure 1-4 A wire stripper for power construction includes a fixed cylinder 1. The front and rear inner walls of the fixed cylinder 1 are provided with three annularly arranged arc-shaped grooves 11. The top of the fixed cylinder 1 is rotatably connected to a drive wheel 2. The inner side wall of the fixed cylinder 1 is rotatably connected to a rotating toothed ring 3. The rotating toothed ring 3 has three annularly arranged sealing cavities 31 and three annularly arranged arc-shaped oil cavities 32 inside. The inner side wall of the rotating toothed ring 3 is inserted with three annularly arranged cutting mechanisms 4. The inner wall of the three arc-shaped oil cavities 32 on the counterclockwise side is inserted with an adjustment mechanism 5. The opposing sides of the three adjustment mechanisms 5 are each welded with a fixing mechanism 6.

[0028] Each of the three cutting mechanisms 4 includes a movable rod 41. A blade 42 is welded to the side of each movable rod 41 facing each other, and a sealing piston 43 is welded to the side of each movable rod 41 facing away from each other. A return spring is adjusted on the outside of each movable rod 41 to press the sealing piston 43 away from the blade 42. The sealing piston 43 is located in the sealing cavity 31.

[0029] All three adjustment mechanisms 5 include an arc-shaped rod 51. A squeeze piston 52 is welded to one side of each of the three arc-shaped rods 51 in a clockwise direction. The squeeze piston 52 is located inside the arc-shaped oil cavity 32. The size of the squeeze piston 52 is adapted to the arc-shaped oil cavity 32. An oil passage is provided between the sealing cavity 31 and the adjacent arc-shaped oil cavity 32. The inside of the arc-shaped oil cavity 32 is filled with hydraulic oil. When the squeeze piston 52 moves in the arc-shaped oil cavity 32, it will squeeze the hydraulic oil into the sealing cavity 31 through the oil passage. The drive wheel 2 meshes with the rotating gear ring 3. Each time the drive wheel 2 starts, it will drive the rotating gear ring 3 to rotate one revolution.

[0030] The fixing mechanism 6 includes connecting rods 61. Each of the three connecting rods 61 has a slider 62 welded to one side facing each other. Each slider 62 has a locking rod 63 inserted into its front and back sides. The locking rod 63 is located in the arc-shaped slide groove 11. When the rotating gear ring 3 rotates, the locking rod 63 and the arc-shaped slide groove 11 enable the rotating gear ring 3 to slide relative to the fixing mechanism 6 and the adjusting mechanism 5.

[0031] By fitting the fixed cylinder 1 onto the cable, the drive wheel 2 drives the rotating gear ring 3 to rotate counterclockwise. When the rotating gear ring 3 rotates, it drives the cutting mechanism 4 and the rotating fixed mechanism 6 to rotate. The locking rod 63 slides in the arc-shaped groove 11. When the locking rod 63 slides to the end of the arc-shaped groove 11 on the counterclockwise side, the locking rod 63 will be locked by the arc-shaped groove 11, so that the fixed mechanism 6 no longer follows the adjustment mechanism 5 and the rotating gear ring 3 to rotate. The rotating gear ring 3 continues to rotate, so that the arc-shaped oil chamber 32 moves towards the squeezing piston 52. The hydraulic oil in the arc-shaped oil chamber 32 enters the sealing chamber 31 through the oil pipe, squeezing the sealing piston 43 downward, driving the sealing piston 43, the movable rod 41 and the blade 42 to move closer to the cable. The blade 42 extends into the cable. When the rotating gear ring 3 drives the blade 42 to rotate around the cable, the blade 42 will cut the outer sheath of the cable, thereby achieving the effect of cutting the outer sheath of the cable.

[0032] Example 2:

[0033] Please see Figure 1 and 4 -6, a wire stripper for power construction, comprising a fixed cylinder 1, with three annularly arranged arc-shaped grooves 11 on the front and rear inner walls of the fixed cylinder 1, a drive wheel 2 rotatably connected to the top of the fixed cylinder 1, a rotating toothed ring 3 rotatably connected to the inner side wall of the fixed cylinder 1, three annularly arranged sealing cavities 31 and three annularly arranged arc-shaped oil cavities 32 being provided inside the rotating toothed ring 3, three annularly arranged cutting mechanisms 4 being inserted into the inner side wall of the rotating toothed ring 3, and an adjustment mechanism 5 being inserted into the inner wall of each of the three arc-shaped oil cavities 32 on the counterclockwise side, and a fixing mechanism 6 being welded to the opposite side of each of the three adjustment mechanisms 5.

[0034] Each of the three cutting mechanisms 4 includes a movable rod 41. A blade 42 is welded to the side of each movable rod 41 facing each other, and a sealing piston 43 is welded to the side of each movable rod 41 facing away from each other. A return spring is adjusted on the outside of each movable rod 41 to press the sealing piston 43 away from the blade 42. The sealing piston 43 is located in the sealing cavity 31.

[0035] The fixing mechanism 6 includes connecting rods 61. Slider 62 is welded to the facing sides of each of the three connecting rods 61. Locking rods 63 are inserted into the front and back of each slider 62. Magnets 64 are welded to the facing sides of each locking rod 63. Electromagnets 65 are welded to the inner walls of the facing sides of each of the three sliders 62. Compression balls 66 are slidably connected inside each of the three connecting rods 61. Magnets 67 are welded to the facing sides of each of the three compression balls 66. Top rods 68 are inserted into the front and back of each of the three connecting rods 61. Arc-shaped blocks 69 are welded to the facing sides of each top rod 68. Locking rods 63 are located within arc-shaped grooves 11. When the rotating gear ring 3 rotates, locking rods 63 and arc-shaped grooves 11 allow relative sliding between the rotating gear ring 3 and the fixing mechanism 6 and the adjusting mechanism 5. Connecting springs are welded between the two magnets 64. The magnetic blocks 64 are pressed against the opposite side of the electromagnet 65. The magnetic properties of the magnetic blocks 64 are opposite to those of the electromagnet 65. Support springs are welded to the opposite side of the three pressing balls 66 to reset the pressing balls 66. Pressing springs are sleeved on the outside of the push rod 68 to reset the push rod 68. The magnetic properties of the magnetic plate 67 are the same as those of the electromagnet 65. When the electromagnet 65 is energized, it can attract the magnetic blocks 64 through magnetism and also generate a repulsive force on the magnetic plate 67. There are wires connecting the electromagnet 65 and its adjacent blades 42. A power supply is connected in series between the electromagnets 65. When the power supply is first turned on, the electromagnet 65 is in an open circuit state. When the three blades 42 come into contact with the core, the blades 42 and the core become conductors, thus forming a closed circuit between the three electromagnets 65. The electromagnets 65 generate magnetism when energized.

[0036] A wire connects the electromagnet 65 to the blade 42. When the blade 42 comes into contact with the cable core, the core and the blade 42 become conductors, forming a closed circuit between the three electromagnets 65. This causes the electromagnets 65 to be energized and generate magnetism. When the electromagnets 65 are energized, they attract the magnetic block 64, causing the locking rod 63 to disengage from the arc-shaped groove 11. The arc-shaped groove 11 no longer prevents the fixed mechanism 6 from moving. At the same time, the electromagnets 65 generate a repulsive force on the magnetic plate 67, which in turn drives the extrusion ball 66 to move closer to the arc-shaped block 69, extruding the arc-shaped block 69. This causes the push rod 68 to extend out of the connecting rod 61. The push rod 68 tightly presses against the inner wall of the rotating gear ring 3, thus keeping the adjusting mechanism 5 and the fixed mechanism 6 relatively stationary with respect to the rotating gear ring 3. When the rotating gear ring 3 continues to rotate and drives the blade 42 to cut the cable sheath, the extension length of the blade 42 no longer changes. This achieves the effect of automatically adjusting the cutting depth of the blade 42 according to the thickness of the sheath, without damaging the cable core.

[0037] Example 3:

[0038] Please see Figure 1-6 A wire stripper for power construction includes a fixed cylinder 1. The front and rear inner walls of the fixed cylinder 1 are provided with three annularly arranged arc-shaped grooves 11. The top of the fixed cylinder 1 is rotatably connected to a drive wheel 2. The inner side wall of the fixed cylinder 1 is rotatably connected to a rotating toothed ring 3. The rotating toothed ring 3 has three annularly arranged sealing cavities 31 and three annularly arranged arc-shaped oil cavities 32 inside. The inner side wall of the rotating toothed ring 3 is inserted with three annularly arranged cutting mechanisms 4. The inner wall of the three arc-shaped oil cavities 32 on the counterclockwise side is inserted with an adjustment mechanism 5. The opposing sides of the three adjustment mechanisms 5 are each welded with a fixing mechanism 6.

[0039] Each of the three cutting mechanisms 4 includes a movable rod 41. A blade 42 is welded to the side of each movable rod 41 facing each other, and a sealing piston 43 is welded to the side of each movable rod 41 facing away from each other. A return spring is adjusted on the outside of each movable rod 41 to press the sealing piston 43 away from the blade 42. The sealing piston 43 is located in the sealing cavity 31.

[0040] All three adjustment mechanisms 5 include an arc-shaped rod 51. A squeeze piston 52 is welded to one side of each of the three arc-shaped rods 51 in a clockwise direction. The squeeze piston 52 is located inside the arc-shaped oil cavity 32. The size of the squeeze piston 52 is adapted to the arc-shaped oil cavity 32. An oil passage is provided between the sealing cavity 31 and the adjacent arc-shaped oil cavity 32. The inside of the arc-shaped oil cavity 32 is filled with hydraulic oil. When the squeeze piston 52 moves in the arc-shaped oil cavity 32, it will squeeze the hydraulic oil into the sealing cavity 31 through the oil passage. The drive wheel 2 meshes with the rotating gear ring 3. Each time the drive wheel 2 starts, it will drive the rotating gear ring 3 to rotate one revolution.

[0041] The fixing mechanism 6 includes connecting rods 61. Slider 62 is welded to the facing sides of each of the three connecting rods 61. Locking rods 63 are inserted into the front and back of each slider 62. Magnets 64 are welded to the facing sides of each locking rod 63. Electromagnets 65 are welded to the inner walls of the facing sides of each of the three sliders 62. Compression balls 66 are slidably connected inside each of the three connecting rods 61. Magnets 67 are welded to the facing sides of each of the three compression balls 66. Top rods 68 are inserted into the front and back of each of the three connecting rods 61. Arc-shaped blocks 69 are welded to the facing sides of each top rod 68. Locking rods 63 are located within arc-shaped grooves 11. When the rotating gear ring 3 rotates, locking rods 63 and arc-shaped grooves 11 allow relative sliding between the rotating gear ring 3 and the fixing mechanism 6 and the adjusting mechanism 5. Connecting springs are welded between the two magnets 64. The magnetic blocks 64 are pressed against the opposite side of the electromagnet 65. The magnetic properties of the magnetic blocks 64 are opposite to those of the electromagnet 65. Support springs are welded to the opposite side of the three pressing balls 66 to reset the pressing balls 66. Pressing springs are sleeved on the outside of the push rod 68 to reset the push rod 68. The magnetic properties of the magnetic plate 67 are the same as those of the electromagnet 65. When the electromagnet 65 is energized, it can attract the magnetic blocks 64 through magnetism and also generate a repulsive force on the magnetic plate 67. There are wires connecting the electromagnet 65 and its adjacent blades 42. A power supply is connected in series between the electromagnets 65. When the power supply is first turned on, the electromagnet 65 is in an open circuit state. When the three blades 42 come into contact with the core, the blades 42 and the core become conductors, thus forming a closed circuit between the three electromagnets 65. The electromagnets 65 generate magnetism when energized.

[0042] Working principle: By placing the fixed cylinder 1 on the cable, the driving wheel 2 drives the rotating gear ring 3 to rotate counterclockwise. When the rotating gear ring 3 rotates, it drives the cutting mechanism 4 and the rotating fixed mechanism 6 to rotate. The locking rod 63 slides in the arc-shaped groove 11. When the locking rod 63 slides to the end of the arc-shaped groove 11 on the counterclockwise side, the locking rod 63 will be locked by the arc-shaped groove 11, so that the fixed mechanism 6 no longer follows the adjustment mechanism 5 and the rotating gear ring 3 to rotate. The rotating gear ring 3 continues to rotate, so that the arc-shaped oil chamber 32 moves towards the squeezing piston 52. The hydraulic oil in the arc-shaped oil chamber 32 enters the sealing chamber 31 through the oil pipe, squeezing the sealing piston 43 downward, driving the sealing piston 43, the moving rod 41 and the blade 42 to move closer to the cable. The blade 42 extends into the cable. When the rotating gear ring 3 drives the blade 42 to rotate around the cable, the blade 42 will cut the outer sheath of the cable, thereby achieving the effect of cutting the outer sheath of the cable.

[0043] A wire connects the electromagnet 65 to the blade 42. When the blade 42 comes into contact with the conductor of the cable, the conductor and the blade 42 become conductors, forming a closed circuit among the three electromagnets 65. This causes the electromagnets 65 to be energized and generate magnetism. When the electromagnets 65 are energized, they attract the magnetic block 64, causing the locking rod 63 to disengage from the arc-shaped slide groove 11. The arc-shaped slide groove 11 no longer prevents the movement of the fixing mechanism 6. At the same time, the electromagnets 65 generate a repulsive force on the magnetic plate 67, which in turn drives the compression ball 66 to move closer to the arc-shaped block 69, compressing the arc-shaped block 69. This causes the push rod 68 to extend out of the connecting rod 61, and the push rod 68 tightly compresses the rotating... The inner wall of the rotating gear ring 3 keeps the adjusting mechanism 5 and the fixing mechanism 6 relatively stationary with respect to the rotating gear ring 3. When the rotating gear ring 3 continues to rotate and drives the blade 42 to cut the cable sheath, the extension length of the blade 42 no longer changes, thus achieving the effect of automatically adjusting the cutting depth of the blade 42 according to the thickness of the sheath, without damaging the cable core. The driving wheel 2 stops when it drives the rotating gear ring 3 to rotate one revolution, ensuring that the sheath can be completely cut off, which facilitates the subsequent separation of the core and the sheath. The power supply on the electromagnet 65 is turned off, the electromagnet 65 is de-energized, the magnetism disappears, and the cutting mechanism 4, the fixing mechanism 6, and the adjusting mechanism 5 will reset under the action of each spring.

[0044] Embodiments of the present invention have been shown and described. It will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire stripper for power construction, comprising a fixed cylinder (1), characterized in that: The front and rear inner walls of the fixed cylinder (1) are provided with three annularly arranged arc-shaped sliding grooves (11). The top of the fixed cylinder (1) is rotatably connected to a drive wheel (2). The inner side wall of the fixed cylinder (1) is rotatably connected to a rotating gear ring (3). The interior of the rotating gear ring (3) is provided with three annularly arranged sealing cavities (31) and three annularly arranged arc-shaped oil cavities (32). The inner side wall of the rotating gear ring (3) is inserted with three annularly arranged cutting mechanisms (4). The inner walls of the three arc-shaped oil cavities (32) on the counterclockwise side are all inserted with adjustment mechanisms (5). The opposing sides of the three adjustment mechanisms (5) are all welded with fixing mechanisms (6). All three adjustment mechanisms (5) include an arc-shaped rod (51), and a compression piston (52) is welded to the clockwise side of each of the three arc-shaped rods (51); The extrusion piston (52) is located in the arc-shaped oil cavity (32). The size of the extrusion piston (52) is adapted to the arc-shaped oil cavity (32). Oil passages are provided between the sealing cavity (31) and its adjacent arc-shaped oil cavity (32). The interior of the arc-shaped oil cavity (32) is filled with hydraulic oil. The drive wheel (2) meshes with the rotating gear ring (3). The fixing mechanism (6) includes connecting rods (61), and sliders (62) are welded to the opposite sides of the three connecting rods (61). A locking rod (63) is inserted into the front and back of the sliders (62). A magnetic block (64) is welded to the opposite side of the locking rods (63). An electromagnet (65) is welded to the inner wall of the opposite side of the three sliders (62). A compression ball (66) is slidably connected inside the three connecting rods (61). A magnetic plate (67) is welded to the opposite side of the three compression balls (66). A top rod (68) is inserted into the front and back of the three connecting rods (61). An arc-shaped block (69) is welded to the opposite side of the top rod (68). The lever (63) is located in the arc-shaped groove (11). A connecting spring is welded between the two magnetic blocks (64). The magnetism of the magnetic block (64) is opposite to that of the electromagnet (65). A supporting spring is welded to the opposite side of the three extrusion balls (66). An extrusion spring is sleeved on the outside of the top rod (68). The magnetism of the magnetic plate (67) is the same as that of the electromagnet (65). A wire is connected between the electromagnet (65) and its adjacent blade (42).

2. The wire stripper for power construction according to claim 1, characterized in that: Each of the three cutting mechanisms (4) includes a movable rod (41), and a blade (42) is welded to the opposite side of each of the three movable rods (41), and a sealing piston (43) is welded to the opposite side of each of the three movable rods (41).

3. A wire stripper for power construction according to claim 2, characterized in that: Each of the movable rods (41) is equipped with a return spring on its exterior, and the sealing piston (43) is located inside the sealing cavity (31).

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