Multifunctional insulating operating rod automatic clamping device for hot-line work

Abstract

The invention relates to the technical field of insulating operating rods, in particular to a multifunctional insulating operating rod automatic clamping device for hot-line work, which comprises an insulating rod and further comprises a fixed block fixedly mounted at the top end of the insulating rod, a through sliding hole is formed in the fixed block along the vertical direction, and a sliding rod penetrates through the sliding hole in a sliding manner. By controlling the sliding rod to move up and down, automatic switching of the hook-shaped state and the clamping state is achieved, the built-in cutting assembly is combined, tools do not need to be manually replaced, the complex operation procedures such as hooking, clamping and cutting can be completed in a one-stop mode, and the working efficiency is greatly improved. In addition, due to the unique progressive cutting mode and the scissor-shaped shearing function of the device, the device can easily deal with materials with different hardness and different types. Both a tough steel-cored aluminum stranded wire and a soft plastic bag can be efficiently processed, so that the application boundary of the tool is obviously widened, and powerful support is provided for various hot-line work.

Description

Technical Field

[0001] This invention relates to the field of insulated operating rod technology, and in particular to an automatic clamping device for a multifunctional insulated operating rod used in live-line work. Background Technology

[0002] Insulated operating rods are a unified term for a set of insulated tools specifically designed for use in power systems. They can be used for live-line work, live-line inspection, and live-line maintenance. They are available in voltage ratings of 10KV, 35KV, 110KV, 220KV, 330KV, and 500KV. These are applicable products developed to meet the needs of power system production, operation, and maintenance.

[0003] In live-line work on power systems, insulated operating rods, as core tools, must perform multiple functions such as clamping, hooking, and cutting. However, existing insulated operating rods generally rely on changing end connectors to switch functions; for example, functional modules such as hooks, clamps, and cutters need to be configured separately. During operation, operators need to frequently disassemble and replace end components with different functions. For example, when performing procedures such as conductor suspension, equipment clamping, and wire cutting, at least three types of connectors need to be switched. This not only consumes a lot of work time (each replacement takes about 5-10 minutes) but also significantly increases safety hazards due to the risk of tools falling from heights or operational errors from contact with live parts. In addition, frequent disassembly and assembly can easily lead to wear on the connection parts, affecting the tool's structural stability and insulation performance, making it difficult to meet the requirements of efficient and safe operation. Moreover, the clamping process relies on manual force application, which is inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a multifunctional automatic clamping device for insulating operating rods used in live-line work, which solves the problem that the end function of the insulating operating rod is limited and requires frequent replacement to meet usage requirements.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic clamping device for a multifunctional insulated operating rod used in live-line work includes an insulated rod and further includes: a fixing block, fixedly installed at the top of the insulated rod, the fixing block having a through sliding hole in the vertical direction, the sliding rod slidingly passing through the sliding hole; two clamping arms, respectively hinged to the left and right sides of the top of the sliding rod via a rotating shaft, the clamping arms having an "L"-shaped structure, each having a cutting component inside; a limiting component, located at the top of the fixing block, used to limit the clamping arms to a horizontal state when the sliding rod moves upward, forming a hook-like structure; and a driving component, located inside the insulated rod and connected to the sliding rod for driving the sliding rod to move vertically within the sliding hole; when the sliding rod slides upward, the clamping arms cooperate with the limiting component to form a hook-like structure; when the sliding rod slides downward, the clamping arms rotate relative to each other under the action of the fixing block, forming a clamping state.

[0006] Preferably, the limiting component includes: a fixing plate, fixedly installed on the top of the fixing block, with a horizontally extending groove on its side wall; two limiting rods, symmetrically slidably connected in the groove, with the opposite sides of the two limiting rods respectively connected to the inner wall of the groove by springs; when the sliding rod moves upward to make the clamping arm contact the limiting rod, the limiting rod applies a vertical clamping force to the clamping arm, and in conjunction with the supporting effect of the sliding rod, locks the clamping arm in a horizontal state.

[0007] Preferably, the clamping arm includes a connecting part and a clamping part, the thickness of which is greater than that of the connecting part; when the slide bar moves downward, the blocking effect of the fixing block on the connecting part causes the two clamping arms to rotate upward and move closer together, and the connecting part pushes the limiting rod to slide horizontally in the groove of the fixing plate.

[0008] Preferably, the cutting assembly includes a cutting blade and a blade holder. A receiving cavity is formed inside the clamping arm. One end of the blade holder is fixedly connected to a rotating shaft and rotatably connected to the receiving cavity via the rotating shaft. The cutting blade is fixedly mounted on the top of the blade holder. A long slot is formed on the top of the clamping arm corresponding to the position of the cutting blade. A first electromagnet is fixedly installed at the bottom of the blade holder away from the rotating shaft, and a second electromagnet is fixedly installed at the corresponding position at the bottom of the receiving cavity. A tower spring is also provided between the blade holder and the bottom of the receiving cavity, with its top fixedly connected to the blade holder. When the first and second electromagnets are energized and generate repulsive force, the blade holder rotates around the rotating shaft and stretches the tower spring, causing the cutting blade to protrude from the long slot to perform the cutting action. When the power is off, the blade holder resets under the tension of the tower spring, and the cutting blade retracts into the receiving cavity.

[0009] Preferably, rollers are respectively provided on the top of the fixing block at the positions on both sides of the slide bar, and the rollers make rolling contact with the clamping arm to reduce the friction when the clamping arm rotates.

[0010] Preferably, the slide rod is a square tubular structure with a connecting sleeve coaxially arranged inside. The top end of the connecting sleeve is fixedly connected to the inner wall of the slide rod, and the bottom end is connected to the driving component to form a transmission structure that drives the slide rod to move axially.

[0011] Preferably, the top of the slide rod has several through holes evenly distributed on the tube wall around the outer periphery of the connecting sleeve, and the clamping arm has a wire groove corresponding to the through holes; the wires of the first electromagnet and the second electromagnet pass through the wire groove and the through holes in sequence, and extend downward along the gap between the connecting sleeve and the slide rod into the interior of the insulating rod to form a closed and insulated wiring channel.

[0012] Preferably, the driving element includes: The motor is mounted inside the insulating rod via a mounting bracket, and the insulating rod has a heat dissipation groove corresponding to the position of the motor; the screw is fixedly connected to the output shaft end of the motor and forms a threaded transmission pair with the threaded hole in the inner wall of the connecting sleeve; when the motor drives the screw to rotate, the rotational motion is converted into the linear motion of the slide rod through the threaded transmission pair.

[0013] Preferably, an anti-slip pad is fixedly installed on the surface of the clamping part of the clamping arm.

[0014] Preferably, a storage battery is provided inside the insulating rod near the bottom, and an insulating sleeve is provided on the surface of the insulating sleeve. A controller is provided on the surface of the insulating sleeve, and the controller is electrically connected to the drive component and the cutting component.

[0015] The present invention has at least the following beneficial effects: The innovative design of the drive component and slide bar transmission system allows for precise control of the slide bar's up-and-down movement, automatically switching between hook and clamping states. Combined with the built-in cutting component, complex operations such as hooking, clamping, and cutting can be completed in one stop without manual tool changes, greatly improving work efficiency. In high-altitude line maintenance scenarios, operators can quickly switch tool functions, reducing the time spent on frequent tool changes and significantly shortening the work cycle. Furthermore, the device's unique progressive cutting mode and scissor-like shearing function can easily handle materials of varying hardness and type. Whether it's tough steel-cored aluminum stranded wire or soft plastic bags, it can be handled efficiently, significantly expanding the tool's application scope and providing strong support for various live-line operations.

[0016] The clamping arm features a meticulously designed cutting component with three flexible and efficient cutting modes. In the first mode, the clamping arm securely holds the object, and then the cutting blade extends precisely for cutting. This ensures the object remains firmly fixed after cutting, preventing sudden drops and making it particularly suitable for high-altitude operations or scenarios where the object's position after cutting is critical. The second mode involves extending the cutting blade from a long slot, followed by the clamping arm slowly approaching, cleverly forming a scissor shape. This allows for flexible shearing of objects, facilitating the handling of various small items or irregular materials. For objects with higher hardness, the third mode offers a unique advantage. After the clamping arm securely holds the object, the repeated energizing and de-energizing of an electromagnet causes the cutting blade to extend and reciprocate, using powerful impact to clamp and break the object. This easily overcomes the challenges of cutting hard materials, providing a comprehensive and reliable solution for diverse operational needs. The clamping arm not only possesses powerful object-gripping capabilities, stably grasping objects of various shapes and sizes to meet the gripping needs of different work scenarios, but also, through cooperation with limiting components, directly forms a stable hook-like structure. In electrical work, this hook-like structure enables precise switching operations, effectively reducing the difficulty and safety risks for operators due to its reliable stability and precise control. The dual-function design of the clamping arm gives the device excellent practicality and adaptability in live-line work, providing a solid guarantee for improving work efficiency and safety. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the fixing block structure of the present invention; Figure 3 This is a cross-sectional view of the insulating rod of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point A in the middle; Figure 5 This is a schematic diagram of the clamping arm structure of the present invention.

[0019] Figure 6 This is a cross-sectional view of the clamping arm of the present invention.

[0020] Figure 7 This is a schematic diagram of the internal structure of the insulating rod of the present invention.

[0021] In the diagram: 1. Insulating rod; 2. Insulating sleeve; 3. Controller; 4. Fixing block; 5. Clamping arm; 51. Receiving cavity; 52. Wire groove; 53. Connecting part; 54. Clamping part; 6. Anti-slip pad; 7. Cutting assembly; 71. Cutting blade; 72. Blade holder; 73. First electromagnet; 74. Second electromagnet; 75. Tower spring; 76. Rotating shaft; 8. Roller; 9. Limiting assembly; 91. Fixing plate; 92. Limiting rod; 93. Spring; 10. Slide rod; 101. Connecting sleeve; 11. Driving component; 111. Screw; 112. Motor; 12. Battery. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0024] Reference Figure 1-7 An automatic clamping device for a multifunctional insulated operating rod for live-line work includes an insulated rod 1, and further includes: a fixing block 4, which is fixedly installed on the top end of the insulated rod 1, with a slide rod 10 slidingly passing through the surface of the fixing block 4; two clamping arms 5, which are respectively hinged to the left and right sides of the top of the slide rod 10 via rotating shafts, and both clamping arms 5 are configured with an "L" shape structure, each containing a cutting component 7; and a limiting component 9, which is disposed on the top of the fixing block 4, and is used to cooperate with the two clamping arms 5 when the slide rod 10 moves upward, to limit and fix the clamping arms 5 in a horizontal state, so that the two clamping arms... Arm 5 forms a hook-like structure; drive member 11, located inside insulating rod 1, is connected to slide rod 10 and can drive slide rod 10 to move vertically within slide hole; when slide rod 10 slides upward, the two clamping arms 5 cooperate with limiting component 9 during movement and are fixed in a horizontal state, forming a hook-like structure for hooking objects; when slide rod 10 slides downward, the two clamping arms 5, under the blocking action of the top edge of fixing block 4, rotate relative to slide rod 10 around the rotation axis, causing the two clamping arms 5 to rotate relative to each other and move closer to each other, forming a clamping state for clamping objects.

[0025] Furthermore, the limiting component 9 includes a fixing plate 91, which is fixedly installed on the top of the fixing block 4; the side wall of the fixing plate 91 is provided with a sliding groove extending in the horizontal direction, and two limiting rods 92 are symmetrically slidably connected in the sliding groove. The two limiting rods 92 are respectively fixedly connected to springs 93 on the opposite sides, and the other end of the springs 93 is fixedly connected to the inner wall of the sliding groove. When the drive member 11 drives the slide bar 10 to slide upward, the two clamping arms 5 are hinged to the top of the slide bar 10 through the rotating shaft. Under the constraint of the top of the slide bar 10, they are in a horizontal state and move upward synchronously with the slide bar 10. As the slide bar 10 continues to rise, the top of the clamping arm 5 gradually approaches the limiting rod 92. When the two come into contact, since the limiting rod 92 can only slide in the horizontal direction, the top of the clamping arm 5 will directly abut against the side of the limiting rod 92. At this time, under the preload of the spring 93, the limiting rod 92 always maintains a horizontal abutment against the top of the clamping arm 5. At the same time, the slide bar 10 forms a support and restriction on the bottom of the clamping arm 5. Through the bidirectional constraint, the "L" shaped clamping arm 5 is firmly locked in a horizontal state, forming a hook-like structure to meet the operation requirements of hooking objects.

[0026] Furthermore, the clamping arm 5 includes an integrally formed connecting part 53 and a clamping part 54, wherein the thickness of the clamping part 54 is greater than that of the connecting part 53; when the driving member 11 drives the slide rod 10 to slide downward, the slide rod 10 drives the two clamping arms 5 to move downward synchronously. At this time, the top edge of the fixing block 4 generates an upward blocking force on the connecting part 53, forcing the two clamping arms 5 to rotate upward around the rotation axis and gradually approach each other; as the slide rod 10 continues to move downward, the side wall of the connecting part 53 contacts the side wall of the limiting rod 92 and applies a horizontal force. The thrust forces the two limiting rods 92 to slide horizontally into the groove against the elastic force of the spring 93. When the slide rod 10 moves down to the limit position, the two limiting rods 92 contact in the middle of the groove. At this time, since the thickness of the clamping part 54 is greater than that of the connecting part 53, there is still a sufficient clamping gap between the two clamping parts 54. And through the locking action of the drive member 11, the two clamping parts 54 form a stable clamping state, realizing the reliable clamping function of the object. At the same time, the contact state of the limiting rods 92 can serve as a mechanical limit mark for clamping in place.

[0027] Furthermore, the cutting assembly 7 includes a cutting blade 71 and a blade holder 72. A receiving cavity 51 is formed inside the clamping arm 5. One end of the blade holder 72 is fixedly connected to a rotating shaft 76, which is rotatably connected to the receiving cavity 51. The cutting blade 71 is fixedly mounted on the top of the blade holder 72. A long slot is formed on the top of the clamping arm 5 corresponding to the position of the cutting blade 71. A first electromagnet 73 is fixedly installed at the bottom of the blade holder 72 away from the rotating shaft 76, and a second electromagnet 74 is fixedly installed at the corresponding position at the bottom of the receiving cavity 51. A spring 75 is also provided between the bottom of the blade holder 72 and the receiving cavity 51. The top of the tower spring 75 is fixedly connected to the blade holder 72. When the first electromagnet 73 and the second electromagnet 74 are energized and generate repulsive force, the blade holder 72 rotates around the shaft 76 and stretches the tower spring 75, causing the cutting blade 71 to emerge from the long slot to perform the cutting action. When the power is off, the blade holder 72 resets under the tension of the tower spring 75, and the cutting blade 71 retracts into the receiving cavity 51. The operating voltage of the first electromagnet 73 and the second electromagnet 74 is 12-24V DC, powered by the battery 12. The current is adjusted by the controller 3 to control the intensity of the repulsive force, such as a maximum repulsive force of 100N. The elastic modulus of the tower spring 75 is 50-100N / mm, ensuring that the cutting blade 71 resets quickly and the impact force is controllable.

[0028] Furthermore, the top of the fixing block 4 is located on both sides of the slide rod 10, and rollers 8 are respectively installed through connecting shafts; when the slide rod 10 moves downward to drive the clamping arm 5 to rotate, the clamping arm 5 rolls in contact with the surface of the rollers 8. Through the rotation of the rollers 8, the friction of the clamping arm 5 during rotation is reduced, ensuring that the clamping arm 5 rotates smoothly.

[0029] Furthermore, the slide rod 10 is a square tubular structure, with a connecting sleeve 101 coaxially arranged inside. The top end of the connecting sleeve 101 is fixedly connected to the inner wall of the slide rod 10, and the bottom end is connected to the driving component 11 to form a transmission structure for driving the slide rod 10 to move axially. Several through holes are evenly distributed on the tube wall of the top of the slide rod 10 located on the outer periphery of the connecting sleeve 101. The clamping arm 5 has a wire groove 52 corresponding to the through holes. The wires of the first electromagnet 73 and the second electromagnet 74 pass through the wire groove 52 and the through holes in sequence, and extend downward along the gap between the connecting sleeve 101 and the slide rod 10 to the interior of the insulating rod 1, forming a closed and insulated wiring channel.

[0030] Furthermore, the driving component 11 includes a motor 112, which is fixedly installed inside the insulating rod 1 via a mounting bracket. The insulating rod 1 has heat dissipation grooves on its surface corresponding to the motor 112. A screw 111 is fixedly connected to the output shaft end of the motor 112. The screw 111 and the threaded hole on the inner wall of the connecting sleeve 101 form a threaded transmission pair. When the motor 112 drives the screw 111 to rotate, the rotational motion is converted into the linear motion of the slide rod 10 through the threaded transmission pair. The threaded pair between the screw 111 and the connecting sleeve 101 uses a trapezoidal thread with a pitch of 2-4 mm, achieving a transmission efficiency of over 80%, ensuring a uniform lifting speed of the slide rod 10, such as 0.5-1 cm / s. The motor 112 is a DC geared motor with a rated power of 20-50 W and a speed of 50-100 r / min, meeting the driving force requirements of different operating scenarios, such as a maximum thrust of 500 N.

[0031] Furthermore, an anti-slip pad 6 is fixedly installed on the surface of the clamping part 54 of the clamping arm 5.

[0032] Furthermore, a battery 12 is fixedly installed inside the insulating rod 1 near its bottom. An insulating sleeve 2 is fixedly installed on the surface of the insulating rod 1, and a controller 3 is fixedly installed on the surface of the insulating sleeve 2. The controller 3 has a built-in overload protection module that automatically cuts off power when the load on the motor 112 exceeds the rated value, preventing the motor from burning out or the structure from being damaged. Limit switches are provided at the upper and lower limit positions of the slide rod 10, which are linked to the controller 3 to prevent excessive movement of the slide rod from causing mechanical failure.

[0033] In summary, when the hook-like structure is needed, the controller 3 starts the motor 112, which drives the screw 111 to rotate, causing the slide bar 10 to move upward. As the slide bar 10 moves upward, the clamping arm 5 moves upward synchronously and comes into contact with the limiting rod 92. The limiting rod 92 applies a vertical clamping force to the clamping arm 5, while the clamping arm 5 is restricted from rotating downward by the top of the slide bar 10, thus locking the clamping arm 5 in a horizontal state, forming a hook-like structure that can be used to hook objects. When the clamping function is needed, the controller 3 controls the motor 112 to reverse, causing the slide bar 10 to move downwards. At this time, the two rollers 8 on the surface of the fixing block 4 block the connecting part 53 of the clamping arm 5, causing the two clamping arms 5 to rotate upwards around the rotation axis and move closer together. The connecting part 53 pushes the limiting rod 92 to slide horizontally. When the slide bar 10 moves down to its limit position, the two limiting rods 92 contact each other, and a gap is formed between the two clamping parts 54 for clamping the object, thus realizing the clamping function. In the clamping state, if it is necessary to cut an object, the controller 3 energizes the first electromagnet 73 and the second electromagnet 74 to generate a repulsive force, the cutter holder 72 rotates around the rotating shaft 76 and stretches the tower spring 75, and the cutting blade 71 protrudes from the long slot and cuts the object. After cutting, the power is turned off, causing the blade holder 72 to reset under the action of the tower spring 75, and the cutting blade 71 retracts. When the item is clamped by the clamping arm 5 and then cut with the cutting blade 71, the clamping arm 5 can be used to fix the item, so it will not fall off suddenly even when being cut, improving ease of use. When cutting harder items, the two cutting blades 71 may not be able to cut effectively with one application of force. In this case, the two electromagnets can be de-energized, causing the two cutting blades 71 to retract. Then, the electromagnets can be energized again, causing the cutting blades 71 to suddenly pop out. This process can be repeated to cut harder wires. At the same time, in order to improve the effectiveness of the cutting component 7, the two cutting blades 71 can be extended out of the long slot before the two clamping arms 5 have formed a clamping state. At this time, as the two clamping arms 5 slowly approach each other, they can form a scissor shape, which makes it easier to cut plastic bags, wires and other items.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A multifunctional insulated operating rod automatic clamping device for live-line working, comprising an insulated rod (1), characterized in that, Also includes: A fixing block (4) is fixedly installed on the top of the insulating rod (1). The fixing block (4) has a through sliding hole in the vertical direction, and the sliding rod (10) slides through the sliding hole. Two clamping arms (5) are respectively hinged to the left and right sides of the top of the slide bar (10) via a rotating shaft. The clamping arms (5) are "L" shaped structures and each has a cutting component (7) inside. The limiting component (9) is located on the top of the fixing block (4) and is used to limit the clamping arm (5) to a horizontal state when the slide bar (10) moves upward, forming a hook-shaped structure; The driving component (11) is located inside the insulating rod (1) and is connected to the slide rod (10) for driving the slide rod (10) to move vertically in the sliding hole; When the slide bar (10) slides upward, the clamping arm (5) and the limiting component (9) cooperate to form a hook-shaped structure; when the slide bar (10) slides downward, the clamping arm (5) rotates relative to the fixed block (4) to form a clamping state.

2. The automatic clamping device for a multi-functional insulated operating rod for live-line work according to claim 1, characterized in that, The limiting component (9) includes: The fixing plate (91) is fixedly installed on the top of the fixing block (4), and its side wall is provided with a horizontally extending groove; Two limiting rods (92) are symmetrically slidably connected in the groove, and the two limiting rods (92) are respectively connected to the inner wall of the groove by springs (93) on the opposite sides; When the slide bar (10) moves upward and the clamping arm (5) contacts the limiting bar (92), the limiting bar (92) applies a vertical clamping force to the clamping arm (5), which, together with the supporting effect of the slide bar (10), locks the clamping arm (5) in a horizontal state.

3. The automatic clamping device for a multifunctional insulated operating rod for live-line work according to claim 2, characterized in that, The clamping arm (5) includes a connecting part (53) and a clamping part (54), the thickness of which is greater than that of the connecting part (53). When the slide bar (10) moves downward, the blocking effect of the fixing block (4) on the connecting part (53) causes the two clamping arms (5) to rotate upward and move closer together. The connecting part (53) pushes the limiting rod (92) to slide horizontally in the groove of the fixing plate (91).

4. The automatic clamping device for a multifunctional insulated operating rod for live-line working according to claim 3, characterized in that, The cutting assembly (7) includes a cutting blade (71) and a blade holder (72). A receiving cavity (51) is provided inside the clamping arm (5). One end of the blade holder (72) is fixedly connected to a rotating shaft (76) and rotatably connected to the receiving cavity (51) via the rotating shaft (76). The cutting blade (71) is fixedly mounted on the top of the blade holder (72). A long groove is provided on the top of the clamping arm (5) corresponding to the position of the cutting blade (71). A first electromagnet (73) is fixedly installed at the bottom of the blade holder (72) away from the rotating shaft (76). The bottom of the receiving cavity (51) corresponds to... A second electromagnet (74) is fixedly installed in a position. A tower spring (75) is also provided between the blade holder (72) and the bottom of the receiving cavity (51). The top of the tower spring (75) is fixedly connected to the blade holder (72). When the first electromagnet (73) and the second electromagnet (74) are energized and generate a repulsive force, the blade holder (72) rotates around the rotating shaft (76) and stretches the tower spring (75), so that the cutting blade (71) is exposed from the long slot to perform the cutting action. When the power is off, the blade holder (72) is reset under the tension of the tower spring (75), and the cutting blade (71) is retracted into the receiving cavity (51).

5. The automatic clamping device for a multifunctional insulated operating rod for live-line working according to claim 1, characterized in that, The top of the fixing block (4) is provided with rollers (8) on both sides of the slide bar (10). The rollers (8) roll in contact with the clamping arm (5) to reduce the friction when the clamping arm (5) rotates.

6. The automatic clamping device for a multifunctional insulated operating rod for live-line work according to claim 1, characterized in that, The slide rod (10) is a square tubular structure with a connecting sleeve (101) coaxially arranged inside. The top end of the connecting sleeve (101) is fixedly connected to the inner wall of the slide rod (10), and the bottom end is connected to the driving component (11) to form a transmission structure that drives the slide rod (10) to move axially.

7. The automatic clamping device for a multifunctional insulated operating rod for live-line work according to claim 4, characterized in that, The top of the slide rod (10) is provided with several through holes on the tube wall around the outer periphery of the connecting sleeve (101). The clamping arm (5) is provided with a wire groove (52) corresponding to the through holes. The wires of the first electromagnet (73) and the second electromagnet (74) pass through the wire groove (52) and the through holes in sequence, and extend downward along the gap between the connecting sleeve (101) and the slide rod (10) to the interior of the insulating rod (1), forming a closed and insulated wiring channel.

8. The automatic clamping device for a multifunctional insulated operating rod for live-line work according to claim 7, characterized in that, The driving component (11) includes: The motor (112) is installed inside the insulating rod (1) by a fixing bracket, and the insulating rod (1) has a heat dissipation groove at the position corresponding to the motor (112); The screw (111) is fixedly connected to the output shaft end of the motor (112) and forms a threaded transmission pair with the threaded hole on the inner wall of the connecting sleeve (101); When the motor (112) drives the screw (111) to rotate, the rotational motion is converted into the linear motion of the slide rod (10) through the threaded transmission pair.

9. The automatic clamping device for a multifunctional insulated operating rod for live-line work according to claim 1, characterized in that, An anti-slip pad (6) is fixedly installed on the surface of the clamping part (54) of the clamping arm (5).

10. The automatic clamping device for a multifunctional insulated operating rod for live-line working according to claim 1, characterized in that, The insulating rod (1) has a battery (12) located near the bottom inside and an insulating sleeve (2) on its surface. The insulating sleeve (2) has a controller (3) on its surface. The controller (3) is electrically connected to the drive unit (11) and the cutting assembly (7).

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