Dismounting device for high-voltage insulation cross arm

Abstract

The invention discloses a dismounting device for a high-voltage insulation cross arm, and relates to the technical field of insulation cross arms, the dismounting device comprises a mounting frame, two clamping rings slidably connected with the mounting frame, a holding unit matched with the clamping rings is arranged on the mounting frame, and the holding unit is used for positioning the mounting frame on a telegraph pole; the positioning unit is arranged on the clamping ring and is used for holding and positioning the insulating cross arm; through the arrangement of the positioning unit and the combination of the precise driving of the air cylinder, the two positioning plates can cooperatively and consistently turn over and clamp the position of the insulating cross arm, so that the stable control of the insulating cross arm is realized, the safety risk possibly faced by a worker when the worker disassembles the insulating cross arm is obviously reduced, and the working efficiency is improved. The dangerous situation that the insulating cross arm possibly shakes and even falls off in the dismounting process is effectively avoided, and therefore the safety and reliability of the whole operation process are improved.

Description

Technical Field

[0001] The invention relates to the technical field of insulating crossarms, in particular to a disassembly device for a high-voltage insulating crossarm. Background Art

[0002] Common types include linear insulating crossarms, which are mainly used for linear poles and towers to support and insulate conductors; tension-resistant insulating crossarms, which are used for tension-resistant poles and towers and can withstand the tension of conductors, and play a role in places where the line direction or segmentation needs to be changed; and corner insulating crossarms, which are suitable for corner poles and towers to meet the support and insulation requirements when the line is turned. The double linear high-voltage insulating crossarm has two parallel insulating arms, which are usually made of high-strength epoxy resin glass fiber reinforced composite materials. This structural design makes it more stable in mechanical properties and can withstand greater vertical loads and horizontal wind forces. The two insulating arms are fixed by metal connectors to ensure that there will be no relative displacement during use. The surface of the insulating arm has been specially treated to have good hydrophobicity and stain resistance, which can effectively prevent flashover in severe weather conditions. Among them, when dismantling the double straight high-voltage insulating crossarm, because it is composed of two insulating arms, it is difficult to achieve synchronous positioning of the two insulating arms when using a dismantling device to dismantle it, which affects the progress of the workers' dismantling of the double straight insulating crossarm. The existing dismantling device often positions one of the insulating arms alone, resulting in the lack of positioning of the other insulating arm, resulting in certain safety hazards when the workers dismantle the insulating arms; Chinese patent document announcement number (CN112443192B) "discloses a disassembly device for ultra-high voltage insulating crossarms, including a protective shell, the bottom of which is fixedly connected with two sets of handles for easy carrying, and a disassembly component is arranged in the protective shell that can not only fix and clamp the insulating crossarm but also facilitate the operator's operation and ensure the operator's own safety. This disassembly device for ultra-high voltage insulating crossarms can facilitate the operator to disassemble the crossarms conveniently and safely when performing disassembly work at high altitudes through the provided disassembly components, avoiding the existing problem of relying solely on the operator's hands during disassembly work, and easily causing unbalanced force affecting the normal disassembly and dangerous operation when disassembling and replacing the crossarms. It ensures that the disassembly can be carried out conveniently and safely, and can also be carried out in an orderly manner, simplifying the disassembly work." Although the above patent document can be applied to the disassembly of single-line insulating crossarms, it is difficult to meet the disassembly of double-line insulating crossarms. For this reason, we propose a disassembly device for high-voltage insulating crossarms. Summary of the invention

[0003] The object of the present invention is to provide a disassembly device for a high-voltage insulating crossarm to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a disassembly device for a high-voltage insulating crossarm, comprising: a mounting frame, and further comprising: Two clamping rings slidably connected to the installation frame, and the installation frame is provided with a clamping unit adapted to the clamping rings, the clamping unit is used to position the installation frame on the electric pole, and; A positioning unit is arranged on the clamping ring, and is used for clamping and positioning the insulating cross arm.

[0005] Preferably, the clamping unit includes: a rotating shaft a rotatably connected to the mounting frame, a spur gear being fastened and sleeved on the rotating shaft a, a toothed plate meshing with the spur gear being fixed on the clamping ring, a rotating shaft b rotatably connected to the mounting frame, a worm being fastened and sleeved on the outer surface of the rotating shaft b, a worm wheel meshing with the worm being fixed on the rotating shaft a, a servo motor being fixed on the mounting frame, the output shaft of the servo motor being coaxially fixed with the rotating shaft b, and an auxiliary part being arranged on the clamping ring.

[0006] Preferably, the auxiliary part includes: an anti-slip ring slidably connected inside the clamping ring, a plurality of connecting rods are fixed on the anti-slip ring, the connecting rods are slidably penetrated by a side wall of the clamping ring, a spring a is sleeved on the outer surface of the connecting rod, one end of the spring a is fixed to a side wall of the anti-slip ring, and the other end of the spring a is fixed to the clamping ring.

[0007] Preferably, tightening members are provided on the two clamping rings, and the tightening members include: a hinged seat is fixed on one of the clamping rings, and a connecting frame is rotatably connected to the hinged seat; a mounting plate is fixed on the other clamping ring, a baffle is fixed on the mounting plate, the connecting frame abuts against the baffle, a screw is threadedly connected to the connecting frame, a rotating wheel is fixed to one end of the screw, and the other end of the screw is rotatably connected to a pressure plate that is slidably connected to the connecting frame.

[0008] Preferably, the positioning unit includes: a rotating rod rotatably connected to the clamping ring, a positioning support plate rotatably connected to the rotating rod, a positioning plate rotatably connected to the positioning support plate via a center rod, a cylinder is fixed to the clamping ring, a transmission plate is fixed to the output end of the cylinder, a rotating seat is hinged between the transmission plate and the positioning plate, and a limiting piece adapted to the positioning support plate is provided on the rotating rod.

[0009] Preferably, the limiting member includes: a through hole is provided on the rotating rod, a channel connected to the through hole is provided on the rotating rod, a movable rod is slidably connected in the through hole, a connecting ring is fixed at one end of the movable rod located inside the channel, the connecting ring is slidably connected to the channel, a spring b is fixed on the connecting ring, the other end of the spring b is fixed to the channel, a pull ring is fixed at one end of the movable rod, a limiting plate is fixed on the pull ring, and a limiting groove matched with the limiting plate is provided on the positioning support plate.

[0010] Preferably, one side wall of the positioning support plate is arranged in the form of an arc surface, and one side wall of the positioning plate adjacent to the positioning support plate is arranged in the form of an arc surface.

[0011] Preferably, two handles are fixed on the installation frame, and anti-slip sleeves are fixed on the handles. Two handle racks are fixed on the installation frame, and the handle racks are located on one side of the handles.

[0012] Preferably, a slide groove is provided on the installation frame, the toothed plate is slidably connected to the slide groove, the length of the slide groove is greater than the length of the toothed plate, two guide rods are fixed on the installation frame, and the clamping ring is slidably penetrated by the outer surface of the guide rod.

[0013] Preferably, two guide grooves are provided on the clamping ring, a guide block is fixed on the anti-slip ring, and the guide block is slidably connected to the guide grooves.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention, through the provision of the clamping unit, can effectively push the two clamping clamping rings toward the utility pole and achieve the purpose of precise clamping and positioning. This process is not only rapid but also stable, ensuring that the device can be quickly and firmly positioned on the utility pole. In addition, the self-locking function of the worm gear can be utilized to further reduce the risk of the clamping ring loosening and falling off. In order to ensure the reliability of the clamping process, it is used in conjunction with the additional auxiliary parts, which can effectively prevent the clamping ring from slipping during use, while ensuring that the clamping force is always maintained at a sufficient level, thereby ensuring the stability and safety of the device.

[0015] The present invention realizes that the two positioning plates can coordinately perform a flipping and clamping action toward the position where the insulating crossarm is located through the setting of the positioning unit combined with the precise driving of the cylinder. The precise implementation of this process ensures that the insulating crossarm can be firmly clamped at the specified position of the positioning support plate, thereby achieving stable control of the insulating crossarm. In this way, the safety risks that workers may face when disassembling the insulating crossarm are significantly reduced, and the dangerous situation of shaking or even falling of the insulating crossarm that may occur during the disassembly process is effectively avoided, thereby improving the safety and reliability of the entire operation process.

[0016] The present invention can not only significantly enhance the clamping force of the two clamping rings on the utility pole and ensure its stability by adding the configuration of the tightening piece, but also effectively prevent the clamping rings from loosening under the action of various external forces, thereby greatly reducing the risk of the clamping rings falling off and ensuring the safe and stable operation of the entire double-insulated crossarm disassembly work. This improvement measure not only improves the operating efficiency, but also further ensures the safety of the staff, because the stability of the clamping rings is directly related to the smooth progress of the disassembly work and the safety of the personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the clamping unit of the present invention; Figure 4 It is a schematic diagram of the connection relationship between the clamping ring and the mounting frame of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 for Figure 4 Enlarged view of point B in the middle; Figure 7 It is a bottom view structural schematic diagram of the present invention; Figure 8 It is a schematic diagram of the side section structure of the clamping ring of the present invention; Fig. 9 It is a schematic diagram of the side section structure of the rotating rod of the present invention; Fig.10 It is a schematic diagram of the connection relationship between the positioning support plate and the rotating rod of the present invention; Fig.11 for Fig.10 Enlarged view of point C in the middle.

[0018] In the figure: 1. mounting frame; 2. clamping ring; 3. clamping unit; 4. positioning unit; 5. rotating shaft a; 6. spur gear; 7. toothed plate; 8. rotating shaft b; 9. worm; 10. worm wheel; 11. servo motor; 12. auxiliary parts; 13. anti-slip ring; 14. connecting rod; 15. spring a; 16. tightening piece; 17. hinge seat; 18. connecting frame; 19. additional plate; 20. baffle; 21. screw; 22. rotating wheel; 23. pressure Plate; 24, rotating rod; 25, positioning support plate; 26, positioning plate; 27, cylinder; 28, transmission plate; 29, rotating seat; 30, limiting member; 31, through hole; 32, channel; 33, movable rod; 34, connecting ring; 35, spring b; 36, pull ring; 37, limiting plate; 38, limiting groove; 39, handle; 40, anti-slip sleeve; 41, handle frame; 42, slide groove; 43, guide rod; 44, guide groove; 45, guide block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1 - Fig.11 , a disassembly device for a high-voltage insulating crossarm shown in the figure comprises: a mounting frame 1, and also comprises: two clamping rings 2 slidably connected to the mounting frame 1, two handles 39 are fixed to the mounting frame 1, and anti-slip sleeves 40 are fixed to the handles 39, two handle racks 41 are fixed to the mounting frame 1, and the handle racks 41 are located on one side of the handles 39, and a clamping unit 3 adapted to the clamping ring 2 is provided on the mounting frame 1, and the clamping unit 3 is used to position the mounting frame 1 on the electric pole, and; a positioning unit 4 is provided on the clamping ring 2, and the positioning unit 4 is used to clamp and position the insulating crossarm; It should be noted that, by putting the clamp on the electric pole, tightening the bolts on the clamp, so that the clamp tightly holds the electric pole, and then fixing one end of the insulating cross arm to the connecting component on the clamp, usually fastened with bolts and other connecting parts, to ensure that the connection between the insulating cross arm and the electric pole is firm and reliable, so as to achieve the installation of the insulating cross arm, which is a conventional setting in the art, so it will not be described in detail here; It should also be noted that the clamping unit 3 clamps and positions the device on the electric pole. After the clamping and positioning are completed, the positioning unit 4 positions the double straight insulating crossarms. Then the staff uses tools to dismantle the insulating crossarms. After the dismantling of the insulating crossarms is completed, the positioning of the insulating crossarms is released respectively, and then the dismantling of the insulating crossarms is completed.

[0021] Further as Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, it is worth specifically explaining that the clamping unit 3 includes: a rotating shaft a5 rotatably connected to the mounting frame 1, a spur gear 6 is tightly sleeved on the rotating shaft a5, a toothed plate 7 meshingly connected to the spur gear 6 is fixed on the clamping ring 2, a rotating shaft b8 is rotatably connected to the mounting frame 1, a worm 9 is tightly sleeved on the outer surface of the rotating shaft b8, a worm wheel 10 meshingly connected to the worm 9 is fixed on the rotating shaft a5, a servo motor 11 is fixed on the mounting frame 1, the output shaft of the servo motor 11 is coaxially fixed with the rotating shaft b8, an auxiliary part 12 is arranged on the clamping ring 2, one side wall of the positioning support plate 25 is arranged in a circular arc surface, and the one side wall of the positioning plate 26 adjacent to the positioning support plate 25 is arranged in a circular arc surface; Specifically, the auxiliary component 12 includes: an anti-slip ring 13 is slidably connected inside the clamping ring 2, two guide grooves 44 are provided on the clamping ring 2, a guide block 45 is fixed on the anti-slip ring 13, the guide block 45 is slidably connected to the guide groove 44, a plurality of connecting rods 14 are fixed on the anti-slip ring 13, the connecting rod 14 is slidably penetrated with a side wall of the clamping ring 2, a spring a15 is sleeved on the outer surface of the connecting rod 14, one end of the spring a15 is fixed to a side wall of the anti-slip ring 13, and the other end of the spring a15 is fixed to the clamping ring 2; It should be noted that, through the setting of the clamping unit 3, the two clamping and holding rings 2 can be effectively pushed to approach the electric pole and accurately clamped and positioned. This process is not only rapid but also stable, ensuring that the device can be quickly and firmly positioned on the electric pole. In addition, the self-locking function of the worm gear 10 and the worm 9 can be used to further reduce the risk of the clamping ring 2 loosening and falling off. In order to ensure the reliability of the clamping process, the auxiliary part 12 is also designed for use, which can effectively prevent the clamping ring 2 from slipping during use, and ensure that the clamping force is always maintained at a sufficient level, thereby ensuring the stability and safety of the device. The principle of positioning the utility pole by the clamping unit 3 is as follows: by taking the installation frame 1 and approaching the position on the utility pole where it needs to be installed, the servo motor 11 drives the rotating shaft b8 to rotate synchronously, driving the worm 9 to rotate synchronously, and utilizing the meshing transmission effect between the worm 9 and the worm wheel 10 to make the rotating shaft a5 rotate synchronously, and then driving the spur gear 6 to rotate synchronously, and utilizing the meshing transmission effect between the spur gear 6 and the toothed plate 7 to drive the two clamping rings 2 to move closer to the utility pole, thereby clamping the device on the surface of the utility pole.

[0022] Further as Figure 1 - Figure 4 , Figure 7 - Fig.11 As shown, it is worth specifically explaining that the positioning unit 4 includes: a rotating rod 24 is rotatably connected to the clamping ring 2, a positioning support plate 25 is rotatably connected to the rotating rod 24, a positioning plate 26 is rotatably connected to the positioning support plate 25 through a center rod, a cylinder 27 is fixed to the clamping ring 2, a transmission plate 28 is fixed to the output end of the cylinder 27, a rotating seat 29 is hinged between the transmission plate 28 and the positioning plate 26, and a stopper 30 adapted to the positioning support plate 25 is provided on the rotating rod 24; The limiting member 30 includes: a through hole 31 is provided on the rotating rod 24, a channel 32 connected to the through hole 31 is provided on the rotating rod 24, a movable rod 33 is slidably connected in the through hole 31, a connecting ring 34 is fixed at one end of the movable rod 33 located inside the channel 32, the connecting ring 34 is slidably connected in the channel 32, a spring b35 is fixed on the connecting ring 34, the other end of the spring b35 is fixed to the channel 32, a pull ring 36 is fixed at one end of the movable rod 33, a limiting plate 37 is fixed on the pull ring 36, and a limiting groove 38 adapted to the limiting plate 37 is provided on the positioning support plate 25; It should be noted that, through the positioning unit 4, the two positioning plates 26 can be synchronously turned over and clamped to the position where the insulating cross arm is located by the drive of the cylinder 27. The implementation of this process ensures that the insulating cross arm can be firmly clamped at the specified position of the positioning support plate 25. In this way, the safety risks that the staff may face when disassembling the insulating cross arm are significantly reduced, and the shaking that may occur during the disassembly process or even the dangerous situation of the insulating cross arm falling is effectively avoided; It should also be noted that when performing the disassembly work, one of the insulating crossarms needs to be disassembled first. This process involves the operation of the limit member 30. By adjusting the limit member 30, the limit of the corresponding insulating crossarm can be successfully released. After this operation is completed, the positioning unit 4 can still ensure that the other insulating crossarm remains in the correct positioning state to maintain the stability of the structure. The purpose of this series of actions is to meet the needs of safe and effective disassembly of the double straight insulating crossarms to ensure that the entire process is both efficient and safe.

[0023] Example 2: Reference Figure 1 and Figure 6 As shown, this embodiment further illustrates the first embodiment, and the difference lies in that the locking method between the two clamping rings 2 is optimized.

[0024] Specifically, the two clamping rings 2 are provided with a tightening member 16, and the tightening member 16 includes: a hinge seat 17 is fixed on one of the clamping rings 2, and a connecting frame 18 is rotatably connected to the hinge seat 17; a mounting plate 19 is fixed on the other clamping ring 2, and a baffle 20 is fixed on the mounting plate 19, and the connecting frame 18 abuts against the baffle 20; a screw rod 21 is threadedly connected to the connecting frame 18, a rotating wheel 22 is fixed to one end of the screw rod 21, and a pressing plate 23 slidably connected to the connecting frame 18 is rotatably connected to the other end of the screw rod 21, and the pressing plate 23 is made of a soft material, so as to further enhance the pressing effect on the mounting plate 19; It should be noted that, during the process of clamping and positioning the electric pole, the clamping unit 3 ensures that the electric pole is accurately fixed. Once the positioning is completed, the additional tightening member 16 can not only significantly improve the clamping force of the two clamping rings 2 on the electric pole to ensure its stability, but also effectively prevent the clamping ring 2 from loosening under the action of various external forces, thereby greatly reducing the risk of the clamping ring 2 falling off, and ensuring the safe and stable operation of the entire disassembly of the insulating crossarm; The working principle of using the tightening piece 16 to strengthen the two clamping rings 2 is: by flipping the connecting frame 18 until the connecting frame 18 is flipped to contact the baffle 20, the connecting frame 18 and the mounting plate 19 are in a vertical state, and the screw 21 is rotated synchronously by rotating the rotating wheel 22, and the threaded transmission effect between the screw 21 and the connecting frame 18 is utilized to cause the pressure plate 23 to be linearly translated along the connecting frame 18 after being subjected to force, until the pressure plate 23 and the mounting plate 19 are in a tightly clamped state.

[0025] In this solution, the personnel hold the handle 39 or the handle frame 41 and move the device close to the position where the insulating crossarm needs to be removed. When ensuring that the device is in a position to clamp the electric pole, the clamping ring 2 is driven by the clamping unit 3 to clamp and position the electric pole. After the positioning is completed, the positioning plate 26 is driven by the positioning unit 4 to clamp and position the insulating crossarm. After ensuring that the positioning of the insulating crossarm is completed, the personnel use professional tools to remove the bolts on the insulating crossarm. After the disassembly is completed, the corresponding insulating crossarm is removed as needed, and the pull ring 36 is pulled to drive the limit plate 37 to move synchronously until the limit plate 37 is separated from the limit groove 38. At this time, the positioning support plate 25 is flipped along the axis of the rotating rod 24 after being subjected to force, and the insulating crossarm can be lifted to the ground, thereby completing the disassembly of the insulating crossarm.

[0026] Example 3: Reference Figure 4 and Figure 5 As shown, this embodiment further illustrates other embodiments, and the difference lies in the optimization of the stability of the clamping ring 2 when it is clamped to the utility pole.

[0027] Specifically, a slide groove 42 is provided on the installation frame 1, and the toothed plate 7 is slidably connected with the slide groove 42. The length of the slide groove 42 is greater than the length of the toothed plate 7. Two guide rods 43 are fixed on the installation frame 1, and the clamping ring 2 is slidably connected with the outer surface of the guide rod 43. It should be noted that the toothed plate 7 slides in the slide groove 42, which plays a guiding role when the toothed plate 7 moves under force, and ensures that the toothed plate 7 remains in a limited position for translation, thereby avoiding the situation of jamming. It should also be noted that the clamping ring 2 slides on the surface of the guide rod 43, and the guide rod 43 provides a guiding function for the clamping ring 2. At the same time, the guide rod 43 provides support for the clamping ring 2 to prevent the clamping ring 2 from getting stuck due to the large force on its end caused by its excessive length.

[0028] The servo motor 11 and the cylinder 27 can be purchased from the market and equipped with a separate power supply. They are mature technologies in this field and have been fully disclosed, so they will not be repeated in the specification.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A disassembly device for a high-voltage insulating crossarm, comprising: The installation frame (1) is characterized by further comprising: two clamping rings (2) slidably connected to the mounting frame (1), and the mounting frame (1) is provided with a clamping unit (3) adapted to the clamping rings (2), the clamping unit (3) being used to position the mounting frame (1) on the electric pole, and; A positioning unit (4) is arranged on the clamping ring (2), and the positioning unit (4) is used to clamp and position the insulating cross arm.

2. A disassembly device for a high-voltage insulating crossarm according to claim 1, characterized in that: The clamping unit (3) comprises: a rotating shaft a (5) rotatably connected to the mounting frame (1), a spur gear (6) being tightly sleeved on the rotating shaft a (5), a toothed plate (7) meshingly connected to the spur gear (6) being fixed on the clamping ring (2), a rotating shaft b (8) rotatably connected to the mounting frame (1), a worm (9) being tightly sleeved on the outer surface of the rotating shaft b (8), a worm wheel (10) meshingly connected to the worm (9) being fixed on the rotating shaft a (5), a servo motor (11) being fixed on the mounting frame (1), an output shaft of the servo motor (11) being coaxially fixed to the rotating shaft b (8), and an auxiliary component (12) being provided on the clamping ring (2).

3. A disassembly device for a high-voltage insulating crossarm according to claim 2, characterized in that: The auxiliary component (12) comprises: an anti-slip ring (13) slidably connected inside the clamping ring (2); a plurality of connecting rods (14) are fixed on the anti-slip ring (13); the connecting rods (14) are slidably penetrated by a side wall of the clamping ring (2); a spring a (15) is sleeved on the outer surface of the connecting rod (14); one end of the spring a (15) is fixed to a side wall of the anti-slip ring (13); and the other end of the spring a (15) is fixed to the clamping ring (2).

4. A disassembly device for a high-voltage insulating crossarm according to claim 1, characterized in that: A tightening member (16) is provided on the two clamping rings (2), and the tightening member (16) comprises: a hinge seat (17) is fixed on one of the clamping rings (2), and a connecting frame (18) is rotatably connected to the hinge seat (17); a mounting plate (19) is fixed on the other clamping ring (2), and a baffle (20) is fixed on the mounting plate (19); the connecting frame (18) abuts against the baffle (20); a screw rod (21) is threadedly connected to the connecting frame (18), a rotating wheel (22) is fixed to one end of the screw rod (21), and a pressure plate (23) slidably connected to the connecting frame (18) is rotatably connected to the other end of the screw rod (21).

5. The high-voltage insulating cross-arm disassembly device according to claim 1, characterized in that: The positioning unit (4) comprises: a rotating rod (24) rotatably connected to the clamping ring (2), a positioning support plate (25) rotatably connected to the rotating rod (24), a positioning plate (26) rotatably connected to the positioning support plate (25) via a center rod, a cylinder (27) fixed to the clamping ring (2), a transmission plate (28) fixed to the output end of the cylinder (27), a rotating seat (29) hingedly connected between the transmission plate (28) and the positioning plate (26), and a limiting member (30) adapted to the positioning support plate (25) is provided on the rotating rod (24).

6. A disassembly device for a high-voltage insulating crossarm according to claim 5, characterized in that: The limiting member (30) comprises: a through hole (31) is provided on the rotating rod (24); a channel (32) connected to the through hole (31) is provided on the rotating rod (24); a movable rod (33) is slidably connected in the through hole (31); a connecting ring (34) is fixed to one end of the movable rod (33) located in the channel (32); the connecting ring (34) is slidably connected to the channel (32); a spring b (35) is fixed to the connecting ring (34); the other end of the spring b (35) is fixed to the channel (32); a pull ring (36) is fixed to one end of the movable rod (33); a limiting plate (37) is fixed to the pull ring (36); and a limiting groove (38) matched with the limiting plate (37) is provided on the positioning support plate (25).

7. A disassembly device for a high-voltage insulating crossarm according to claim 5, characterized in that: One side wall of the positioning support plate (25) is arranged in the form of an arc surface, and one side wall of the positioning plate (26) adjacent to the positioning support plate (25) is arranged in the form of an arc surface.

8. The high-voltage insulating cross-arm disassembly device according to claim 1, characterized in that: Two handles (39) are fixed on the installation frame (1), and anti-slip sleeves (40) are fixed on the handles (39). Two handle frames (41) are fixed on the installation frame (1), and the handle frames (41) are located on one side of the handles (39).

9. A disassembly device for a high-voltage insulating crossarm according to claim 2, characterized in that: The installation frame (1) is provided with a slide groove (42), the toothed plate (7) is slidably connected to the slide groove (42), the length of the slide groove (42) is greater than the length of the toothed plate (7), two guide rods (43) are fixed to the installation frame (1), and the clamping ring (2) and the outer surface of the guide rod (43) are slidably penetrated.

10. The high-voltage insulating cross-arm disassembly device according to claim 3, characterized in that: Two guide grooves (44) are formed on the clamping ring (2), a guide block (45) is fixed on the anti-slip ring (13), and the guide block (45) is slidably connected to the guide grooves (44).

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