High-strength insulating cross arm capable of preventing lead from falling off

Abstract

The invention discloses a high-strength lead falling prevention type insulated cross arm, and particularly relates to the technical field of electric power systems, equipment comprises a composite cross arm, a butterfly insulator and a binding wire, a connecting mechanism for fixing the butterfly insulator and the binding wire is arranged on the surface of the composite cross arm, and the composite cross arm is connected with the butterfly insulator and the binding wire through the connecting mechanism. The nut is screwed to be in threaded connection with one end of the bolt, the bottom of the nut extrudes the binding wire and the butterfly insulator, so that the butterfly insulator is fixed to the composite cross arm, the binding wire is fixed to the butterfly insulator, an original galvanized iron piece, an original bolt fitting, an original binding wire and an original butterfly insulator are combined into a whole, factory machining and prefabrication are utilized, and the overall performance of the composite cross arm is improved. The device is assembled before leaving a factory, field processing and assembling are avoided, the working efficiency is further improved, meanwhile, the composite cross arm is made of a novel composite material, the service life of the composite cross arm can be prolonged, the operation cost is further reduced, the construction cost is saved, the process standard is unified, and the construction quality is improved.

Description

Technical Field

[0001] This application relates to the field of power system technology, and more specifically, to a high-strength insulated crossarm designed to prevent conductor detachment. Background Technology

[0002] Galvanized iron crossarms are core supporting components of power transmission and distribution lines. They are key components used to support insulators and conductors in overhead power distribution lines. When in use, the butterfly insulators need to be fixed on the composite crossarms, and then the conductors are fixed on the butterfly insulators with binding wires to ensure that the conductors and insulators are in close contact so as to carry out power transmission and distribution.

[0003] However, galvanized iron crossarms may pose safety hazards during long-term operation due to factors such as material aging, environmental corrosion, and improper installation and maintenance. Furthermore, the use of butterfly insulators requires on-site assembly, reducing construction efficiency. Additionally, when fixing conductors, operators must climb the utility pole, hold the conductor with one hand, and use the other hand to tie the conductor to the butterfly insulator with binding wire. In some cases, to maintain balance, operators need to hold the galvanized iron crossarm with one hand for single-handed operation. Since the conductor is prone to swaying in the air, bundling the conductor is too troublesome, and this method of bundling is less effective, making it easy for the conductor to fall off.

[0004] Therefore, a high-strength insulated crossarm designed to prevent conductor detachment is proposed to address the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, this application provides a high-strength insulated crossarm that prevents conductor detachment, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a high-strength, conductor-resistant insulating crossarm, comprising a composite crossarm, a butterfly insulator, and a binding wire. The surface of the composite crossarm has multiple sets of connecting holes. A conductor is placed on the surface of the butterfly insulator. The surface of the composite crossarm is provided with a connecting mechanism for fixing the butterfly insulator and the binding wire. The surface of the composite crossarm is provided with a fixing mechanism for fixing the conductor. The fixing mechanism includes a fixing sleeve, a second fixing groove, an annular groove, an annular spring, and an annular ring. Multiple sets of fixing sleeves are fixedly connected to the surface of the composite crossarm. A second fixing groove is formed on one side of the bottom of the fixing sleeve. An annular groove is formed on one side of the inner surface of the fixing sleeve. An annular spring is provided on the inner wall of the annular groove. One end of the annular spring is fixedly connected to the annular groove, and the other end is fixedly connected to the annular ring. An annular ring is slidably connected to the inner wall of the annular groove. A limiting mechanism for limiting the conductor is provided on the surface of the annular ring.

[0007] Preferably, the surface of the annular ring is provided with a first slot, and the interior of the fixing sleeve is provided with a first limiting slot, a second limiting slot, and a third limiting slot. A sliding rod is slidably connected to the inner wall of the first limiting slot. The inner wall of the first slot cooperates with one end of the sliding rod. A connecting rod is fixedly connected to the bottom of the sliding rod. A second spring is sleeved on the surface of the connecting rod. One end of the second spring is fixedly connected to the first limiting slot, and the other end is fixedly connected to the sliding rod. A connecting plate is fixedly connected to the bottom of the connecting rod. A protrusion is fixedly connected to one end of the connecting plate. The connecting plate is slidably connected to the inner wall of the second limiting slot.

[0008] Preferably, a limiting block is slidably connected to the inner wall of the third limiting groove, a second slot is provided at one end of the limiting block, the inner wall of the second slot cooperates with the protrusion, a fixing block is fixedly connected to the surface of the slide rod, a third spring is provided on the inner wall of the third limiting groove, one end of the third spring is fixedly connected to the third limiting groove, and the other end is fixedly connected to the limiting block.

[0009] Preferably, the third limiting groove is provided with a guide cavity that matches the outer contour of the limiting block. The inner surface of the guide cavity and the outer surface of the limiting block maintain a fitting gap of 0.05-0.2mm. The size of the fitting gap is configured to allow the limiting block to make reciprocating linear motion without jamming along the axial direction of the third limiting groove.

[0010] Preferably, the limiting mechanism includes a fixed rod, a first locking plate, a connecting sleeve, a connecting groove, a connecting block, a fourth spring, and a second locking plate. The fixed rod is fixedly connected to the surface of the annular ring, and the first locking plate is fixedly connected to one end of the fixed rod. The connecting sleeve is fixedly connected to the bottom front end of the fixed sleeve. A connecting groove is formed on the surface of the connecting sleeve, and a connecting block is slidably connected to the inner wall of the connecting groove. Two sets of fourth springs are provided on the inner wall of the connecting groove. One end of the fourth spring is fixedly connected to the connecting groove, and the other end is fixedly connected to the connecting block. The second locking plate is fixedly connected to the top of the connecting block.

[0011] Preferably, the surfaces of the first and second card blocks are provided with rubber pads.

[0012] Preferably, the surface of the composite crossarm is provided with a sliding mechanism to facilitate the installation of the butterfly insulator. The sliding mechanism includes a sliding groove, a stop groove, a first spring, a stop block, and a locking block. Multiple sets of sliding grooves are formed on the surface of the composite crossarm. Two sets of stop grooves are formed on the inner wall of the sliding groove. Two sets of first springs are provided inside the stop groove. One end of the first spring is fixedly connected to the stop groove, and the other end is fixedly connected to the stop block. A locking block is slidably connected to the inner wall of the sliding groove, and a butterfly insulator is fixedly connected to the top of the locking block.

[0013] Preferably, the connecting mechanism includes a fixing hole, a bolt, a nut, and a first fixing groove. The surface of the butterfly insulator has a fixing hole, the inner wall of the fixing hole is slidably connected to a bolt, one end of the bolt is threadedly connected to a nut, the surface of the bolt has a first fixing groove, and the inner wall of the first fixing groove is slidably connected to a binding wire.

[0014] Preferably, the surface of the composite crossarm has multiple sets of positioning holes.

[0015] Preferably, the composite crossarm is made of basalt fiber reinforced epoxy resin-based composite material, and the surface of the composite crossarm is coated with a nano-silica modified coating.

[0016] The technical effects and advantages of this application are as follows: Compared with existing technologies, this high-strength conductor-resistant insulating crossarm, through a connecting mechanism, connects the nut and bolt at one end by tightening the thread. The bottom of the nut presses against the binding wire and the butterfly insulator, fixing the butterfly insulator to the composite crossarm and the binding wire to the butterfly insulator. This combines the original galvanized iron parts, bolts, binding wire, and butterfly insulator into one unit, utilizing factory prefabrication to complete assembly before leaving the factory, avoiding on-site processing and assembly, thus improving work efficiency. At the same time, the composite crossarm uses a new composite material, which can extend the service life of the composite crossarm, thereby reducing operating costs, saving construction costs, standardizing process standards, and improving construction quality.

[0017] Compared with existing technologies, this high-strength anti-conductor-detachment insulating crossarm, through a fixing mechanism and a limiting mechanism, pushes the limiting block forward, causing the limiting block to push the conductor to be clamped on the annular ring. At the same time, the annular ring, through the fixing rod, drives the first clamping plate to a suitable position, so that the conductor is clamped between the first clamping plate and the second clamping plate. When only one hand can be used for operation, the binding wire is picked up with one hand, first wrapped around the conductor on one side of the fixing sleeve, then the binding wire is passed through the annular ring and wrapped around again. After that, the binding wire is wrapped around the grooves on the surface of the first and second clamping plates and wrapped around the conductor again. After the binding wire is wrapped, a rope loop is made at an appropriate position at one end of the binding wire, one end of the binding wire is passed through the rope loop, and the knot is tightened, so that one end of the binding wire is tied to the conductor, thereby fixing the conductor to the annular ring, the first clamping plate and the second clamping plate, preventing the conductor from falling off during use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This application presents a composite crossbeam and positioning hole mating structure; Figure 3 This is a schematic diagram of the sliding mechanism of this application; Figure 4 This is a schematic diagram of the connection mechanism of this application; Figure 5 This application describes a structure for the fixing groove to mate with the binding wire. Figure 6 This application describes the structure of the butterfly insulator and the conductor in conjunction. Figure 7 This application describes a structure where an annular groove and an annular groove mate. Figure 8 This is a schematic diagram of the fixing mechanism of this application; Figure 9 This application presents a structure in which the annular groove and the second fixed groove mate. Figure 10 This is a schematic diagram of the limiting mechanism in this application; Figure 11 This is a schematic diagram of the structure of the binding wire and the conductor in this application; Figure 12 This is a schematic diagram of the structure of the composite crossarm and the fixing sleeve in this application; Figure 13 This is a schematic diagram of the structure of the fixing sleeve and the limiting block in this application. Figure 14 For the purposes of this application Figure 8 Enlarged diagram of A in the middle; Figure 15 For the purposes of this application Figure 8 Enlarged diagram of B in the diagram.

[0019] The attached figures are labeled as follows: 1. Composite crossarm; 2. Connecting hole; 3. Sliding mechanism; 301. Slide groove; 302. Stop groove; 303. First spring; 304. Stop; 305. Locking block; 4. Butterfly insulator; 5. Connecting mechanism; 501. Fixing hole; 502. Bolt; 503. Nut; 504. First fixing groove; 6. Binding wire; 7. Fixing mechanism; 701. Fixing sleeve; 702. Second fixing groove; 703. Annular groove; 704. Annular spring; 705. Annular ring; 706. First locking groove; 707. First 708. Limiting groove; 709. Slide rod; 710. Connecting rod; 711. Second spring; 712. Second limiting groove; 713. Connecting plate; 714. Protrusion; 715. Limiting block; 716. Second slot; 717. Fixing block; 718. Third spring; 719. Third limiting groove; 8. Limiting mechanism; 801. Fixing rod; 802. First locking plate; 803. Connecting sleeve; 804. Connecting groove; 805. Connecting block; 806. Fourth spring; 807. Second locking plate; 9. Wire; 10. Positioning hole; 11. Groove. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Example 1 like Figures 1 to 15 The high-strength conductor-resistant insulating crossarm shown includes a composite crossarm 1, a butterfly insulator 4, and a binding wire 6. The surface of the composite crossarm 1 has multiple sets of connection holes 2. A conductor 9 is placed on the surface of the butterfly insulator 4. The surface of the composite crossarm 1 is provided with a connection mechanism 5 for fixing the butterfly insulator 4 and the binding wire 6, facilitating the fixing of the butterfly insulator 4 and the binding wire 6 onto the composite crossarm 1. The surface of the composite crossarm 1 is also provided with a fixing mechanism 7 for fixing the conductor 9, facilitating the subsequent one-handed fixing of the conductor 9 onto the butterfly insulator 4. The fixing mechanism 7 includes a fixing sleeve 701, a second fixing groove 702, and an annular groove 703. The composite crossarm 1 is provided with an annular spring 704 and an annular ring 705. Multiple sets of fixing sleeves 701 are fixedly connected to the surface of the composite crossarm 1. A second fixing groove 702 is provided on one side of the bottom of the fixing sleeve 701. An annular groove 703 is provided on one side of the inside of the fixing sleeve 701. An annular spring 704 is provided on the inner wall of the annular groove 703. One end of the annular spring 704 is fixedly connected to the annular groove 703, and the other end is fixedly connected to the annular ring 705. The annular ring 705 is slidably connected to the inner wall of the annular groove 703. The surface of the annular ring 705 is provided with a limiting mechanism 8 for limiting the conductor 9, so that when the conductor 9 is bound by the binding wire 6, the binding wire 6 will not excessively compress the conductor 9.

[0022] In a preferred embodiment, the surface of the annular ring 705 is provided with a first slot 706, and the interior of the fixing sleeve 701 is provided with a first limiting slot 707, a second limiting slot 711, and a third limiting slot 718. A sliding rod 708 is slidably connected to the inner wall of the first limiting slot 707. The inner wall of the first slot 706 is engaged with one end of the sliding rod 708. A connecting rod 709 is fixedly connected to the bottom of the sliding rod 708. A second spring 710 is sleeved on the surface of the connecting rod 709. One end of the second spring 710 is fixedly connected to the first limiting slot 707, and the other end is fixedly connected to the sliding rod 708. A connecting plate 712 is fixedly connected to the bottom of the connecting rod 709. A protrusion 713 is fixedly connected to one end of the connecting plate 712. The connecting plate 712 is slidably connected to the inner wall of the second limiting slot 711, so that the connecting plate 712 can slide in the second limiting slot 711.

[0023] In a preferred embodiment, a limiting block 714 is slidably connected to the inner wall of the third limiting groove 718. A second slot 715 is provided at one end of the limiting block 714. The inner wall of the second slot 715 cooperates with the protrusion 713. The protrusion 713 can lock the limiting block 714, preventing the limiting block 714 from moving arbitrarily. A fixing block 716 is fixedly connected to the surface of the slide rod 708. Pressing the fixing block 716 can drive the slide rod 708 to move downward. A third spring 717 is provided on the inner wall of the third limiting groove 718. One end of the third spring 717 is fixedly connected to the third limiting groove 718, and the other end is fixedly connected to the limiting block 714.

[0024] In a preferred embodiment, the third limiting groove 718 is provided with a guide cavity that matches the outer contour of the limiting block 714. The inner surface of the guide cavity and the outer surface of the limiting block 714 maintain a fitting gap of 0.05-0.2mm. The size of the fitting gap is configured to allow the limiting block 714 to make a reciprocating linear motion without jamming along the axial direction of the third limiting groove 718. When the limiting block 714 slides inside the third limiting groove 718, the third limiting groove 718 can limit the sliding of the limiting block 714 and prevent the limiting block 714 from shaking inside the third limiting groove 718.

[0025] In a preferred embodiment, the limiting mechanism 8 includes a fixed rod 801, a first locking plate 802, a connecting sleeve 803, a connecting groove 804, a connecting block 805, a fourth spring 806, and a second locking plate 807. The fixed rod 801 is fixedly connected to the surface of the annular ring 705. One end of the fixed rod 801 is fixedly connected to the first locking plate 802. The bottom front end of the fixed sleeve 701 is fixedly connected to the connecting sleeve 803. The surface of the connecting sleeve 803 is provided with a connecting groove 804. The inner wall of the connecting groove 804 is slidably connected to the connecting block 805. The inner wall of the connecting groove 804 is provided with two sets of fourth springs 806. One end of the fourth spring 806 is fixedly connected to the connecting groove 804, and the other end is fixedly connected to the connecting block 805. The top of the connecting block 805 is fixedly connected to the second locking plate 807. When the annular ring 705 moves the first locking plate 802 to a suitable position through the fixed rod 801, the wire 9 can be fixed between the first locking plate 802 and the second locking plate 807.

[0026] In a preferred embodiment, the surfaces of the first card plate 802 and the second card plate 807 are provided with rubber pads so that the first card plate 802 and the second card plate 807 will not damage the wire 9.

[0027] In a preferred embodiment, the surface of the composite crossarm 1 is provided with a sliding mechanism 3 to facilitate the installation of the butterfly insulator 4. The sliding mechanism 3 includes a sliding groove 301, a stop groove 302, a first spring 303, a stop block 304, and a locking block 305. Multiple sets of sliding grooves 301 are formed on the surface of the composite crossarm 1. Two sets of stop grooves 302 are formed on the inner wall of the sliding grooves 301. Two sets of first springs 303 are provided inside the stop grooves 302. One end of each first spring 303 is fixedly connected to the stop groove 302, and the other end is fixedly connected to the stop block 304. The inner wall of the sliding groove 301 slides... A locking block 305 is connected to the moving part, and a butterfly insulator 4 is fixedly connected to the top of the locking block 305. The butterfly insulator 4 is inserted into the slide groove 301 through the locking block 305. At this time, the locking block 305 will drive the stop block 304 to squeeze the first spring 303. When the locking block 305 is in the right position, the connecting hole 2 matches the fixing hole on the surface of the butterfly insulator 4. At the same time, the first spring 303 returns to its original position and pushes the stop block 304 to block the locking block 305, so that the butterfly insulator 4 is locked on the composite crossarm 1 through the locking block 305, so that the butterfly insulator 4 can be fixed by the connecting mechanism 5 in the future.

[0028] In a preferred embodiment, the connecting mechanism 5 includes a fixing hole 501, a bolt 502, a nut 503, and a first fixing groove 504. The surface of the butterfly insulator 4 has a fixing hole 501. The inner wall of the fixing hole 501 is slidably connected to the bolt 502. One end of the bolt 502 is threadedly connected to the nut 503. The surface of the bolt 502 has a first fixing groove 504. The inner wall of the first fixing groove 504 is slidably connected to the binding wire 6. When the butterfly insulator 4 is secured to the composite crossarm 1 by the locking block 305, the bolt 502 is passed through the connecting hole 2 and the fixing hole 501. Then, one end of the binding wire 6 is inserted into the first fixing groove 504. The nut 503 is screwed to connect with one end of the bolt 502, so that the bottom of the nut 503 presses the binding wire 6 and the butterfly insulator 4, thereby fixing the butterfly insulator 4 to the composite crossarm 1 and fixing the binding wire 6 to the butterfly insulator 4.

[0029] In a preferred embodiment, the surface of the composite crossarm 1 is provided with multiple sets of positioning holes 10. The composite crossarm 1 is placed on the tower, and the fixing bolts are tightened. The fixing bolts pass through the positioning holes 10 and are threadedly connected to the tower, so that the composite crossarm 1 can be fixed on the tower.

[0030] As a preferred embodiment, the composite crossarm 1 is made of basalt fiber reinforced epoxy resin-based composite material, and the surface of the composite crossarm 1 is coated with a nano-silica modified coating, which can extend the service life of the composite crossarm 1 and thus reduce operating costs.

[0031] Example 2 Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 12 to 13As shown below, see details: In a preferred embodiment, when the conductor 9 needs to be side-bound to the butterfly insulator 4, a groove 11 is made on one side of the butterfly insulator 4. By using the butterfly insulator 4 with the groove 11, the fixing mechanism 7 can be placed on one side of the butterfly insulator 4. At the same time, the middle part of the binding wire 6 is fixed to the butterfly insulator 4. After the conductor 9 passes between the butterfly insulator 4 and the fixing mechanism 7, the fixing block 716 is pressed to trigger the limiting block 714. The limiting block 714 pushes the conductor 9 to be stuck on the butterfly insulator 4. Then, the binding wire 6 is used to fix the conductor 9 to one side of the butterfly insulator 4 by cross binding.

[0032] The working process of this application is as follows: The butterfly insulator 4 is inserted into the slide groove 301 through the locking block 305. At this time, the locking block 305 will drive the stop block 304 to squeeze the first spring 303. When the locking block 305 is in the correct position, the connecting hole 2 matches the fixing hole on the surface of the butterfly insulator 4. At the same time, the first spring 303 returns to its original position, pushing the stop block 304 to block the locking block 305, so that the butterfly insulator 4 is locked onto the composite crossarm 1 through the locking block 305. The bolt 502 is passed through the connecting hole 2 and the fixing hole 501. Then, one end of the binding wire 6 is inserted into the first fixing groove 504. The nut 503 is screwed to connect with one end of the bolt 502. The bottom of the nut 503 squeezes the binding wire 6 and the butterfly insulator 4, so that the butterfly insulator 4 is fixed on the composite crossarm 1, and the binding wire 6 is fixed to the crossarm 1. Fixed to the butterfly insulator 4, the device is prefabricated in a factory, allowing assembly before leaving the factory and avoiding on-site processing and assembly, thus improving work efficiency. The ring 705 is pushed and compressed, simultaneously pushing the limiting block 714 and compressing the third spring 717. When the ring 705 is in the correct position, the second spring 710 resets the sliding rod 708 into the first slot 706, and the limiting block 714 is secured to the protrusion 713 through the second slot 715, restoring the fixing mechanism 7 to its original state. When the device is in use, the composite crossarm 1 is placed on the tower, and the fixing bolts are tightened. The fixing bolts pass through the positioning hole 10 and are threaded into the tower, allowing the composite crossarm 1 to be fixed to the tower. When fixing the conductor 9, the conductor... The conductor 9 is fitted onto the butterfly insulator 4, and one end of the conductor 9 is placed on one side of the fixing sleeve 701. Pressing the fixing block 716 causes the sliding rod 708 to move down, which in turn compresses the second spring 710. At the same time, one end of the sliding rod 708 moves out of the first slot 706, causing the annular spring 704 to reset and push one end of the annular ring 705 into the second fixing slot 702, so that the conductor 9 is located in the annular ring 705. The protrusion 713 moves out of the second slot 715, causing the third spring 717 to reset and push the limiting block 714 forward, so that the limiting block 714 pushes the conductor 9 to be locked onto the annular ring 705. At the same time, the annular ring 705 moves the first locking plate 802 to the appropriate position through the fixing rod 801, so that the conductor 9 is clamped in the first locking plate. Between the first locking plate 802 and the second locking plate 807, and through the fourth spring 806 and the connecting block 805, the second locking plate 807 forms an upward force, allowing the wire 9 to be fixed between the first locking plate 802 and the second locking plate 807. When only one hand can be used for operation, take the binding wire 6 with one hand, first wrap it around the wire 9 on one side of the fixing sleeve 701 once, then pass the binding wire 6 through the ring 705 and wrap it around once more. After that, wrap the binding wire 6 around the grooves on the surfaces of the first locking plate 802 and the second locking plate 807, and then wrap it around the wire 9 again. After the binding wire 6 is wrapped, make a rope loop at an appropriate position at one end of the binding wire 6, pass one end of the binding wire 6 through the rope loop, and tighten the knot so that one end of the binding wire 6 is tied to the wire 9.This secures the conductor 9 to the annular ring 705, the first clamping plate 802, and the second clamping plate 807, preventing the conductor 9 from falling off during use. Simultaneously, the composite crossarm 1 utilizes a new type of composite material, which extends its service life and reduces operating costs. The above describes the working principle of this high-strength, conductor-resistant insulated crossarm.

Claims

1. A high-strength, conductor-resistant insulating crossarm, comprising a composite crossarm (1), a butterfly insulator (4), and a binding wire (6), wherein the surface of the composite crossarm (1) has multiple sets of connection holes (2), and a conductor (9) is placed on the surface of the butterfly insulator (4), characterized in that: The surface of the composite crossarm (1) is provided with a connecting mechanism (5) for fixing the butterfly insulator (4) and the binding wire (6), and the surface of the composite crossarm (1) is provided with a fixing mechanism (7) for fixing the conductor (9). The fixing mechanism (7) includes a fixing sleeve (701), a second fixing groove (702), an annular groove (703), an annular spring (704), and an annular ring (705). Multiple sets of fixing sleeves (701) are fixedly connected to the surface of the composite crossarm (1). The bottom of the fixing sleeve (701) A second fixing groove (702) is provided on one side of the part, and an annular groove (703) is provided on one side of the inside of the fixing sleeve (701). An annular spring (704) is provided on the inner wall of the annular groove (703). One end of the annular spring (704) is fixedly connected to the annular groove (703), and the other end is fixedly connected to an annular ring (705). An annular ring (705) is slidably connected to the inner wall of the annular groove (703). A limiting mechanism (8) for limiting the wire (9) is provided on the surface of the annular ring (705).

2. The high-strength anti-conductor-detachment insulating crossarm according to claim 1, characterized in that: The surface of the annular ring (705) is provided with a first slot (706). The inside of the fixed sleeve (701) is provided with a first limiting slot (707), a second limiting slot (711) and a third limiting slot (718). The inner wall of the first limiting slot (707) is slidably connected to a slide rod (708). The inner wall of the first slot (706) is engaged with one end of the slide rod (708). The bottom of the slide rod (708) is fixedly connected to a connecting rod (709). The surface of the connecting rod (709) is fitted with a second spring (710). One end of the second spring (710) is fixedly connected to the first limiting slot (707), and the other end is fixedly connected to the slide rod (708). The bottom of the connecting rod (709) is fixedly connected to a connecting plate (712). One end of the connecting plate (712) is fixedly connected to a protrusion (713). The inner wall of the second limiting slot (711) is slidably connected to the connecting plate (712).

3. A high-strength insulated crossarm for preventing conductor detachment according to claim 2, characterized in that: The inner wall of the third limiting groove (718) is slidably connected to a limiting block (714). One end of the limiting block (714) is provided with a second slot (715). The inner wall of the second slot (715) cooperates with the protrusion (713). A fixing block (716) is fixedly connected to the surface of the slide rod (708). The inner wall of the third limiting groove (718) is provided with a third spring (717). One end of the third spring (717) is fixedly connected to the third limiting groove (718), and the other end is fixedly connected to the limiting block (714).

4. A high-strength, conductor-resistant insulating crossarm according to claim 3, characterized in that: The third limiting groove (718) is provided with a guide cavity that matches the outer contour of the limiting block (714). The inner surface of the guide cavity and the outer surface of the limiting block (714) maintain a fitting gap of 0.05-0.2mm. The size of the fitting gap is configured to allow the limiting block (714) to make a reciprocating linear motion without jamming along the axial direction of the third limiting groove (718).

5. A high-strength insulated crossarm for preventing conductor detachment according to claim 1, characterized in that: The limiting mechanism (8) includes a fixed rod (801), a first locking plate (802), a connecting sleeve (803), a connecting groove (804), a connecting block (805), a fourth spring (806), and a second locking plate (807). The fixed rod (801) is fixedly connected to the surface of the annular ring (705). The first locking plate (802) is fixedly connected to one end of the fixed rod (801). The connecting sleeve (803) is fixedly connected to the bottom front end of the fixed sleeve (701). The connecting groove (804) is opened on the surface of the connecting sleeve (803). The connecting block (805) is slidably connected to the inner wall of the connecting groove (804). Two sets of fourth springs (806) are provided on the inner wall of the connecting groove (804). The connecting groove (804) is fixedly connected to one end of the fourth spring (806) and to the connecting block (805) at the other end. The second locking plate (807) is fixedly connected to the top of the connecting block (805).

6. A high-strength insulated crossarm for preventing conductor detachment according to claim 5, characterized in that: The surfaces of the first card plate (802) and the second card plate (807) are provided with rubber pads.

7. A high-strength insulated crossarm for preventing conductor detachment according to claim 1, characterized in that: The surface of the composite crossarm (1) is provided with a sliding mechanism (3) to facilitate the installation of the butterfly insulator (4). The sliding mechanism (3) includes a sliding groove (301), a stop groove (302), a first spring (303), a stop (304), and a locking block (305). The surface of the composite crossarm (1) is provided with multiple sets of sliding grooves (301). The inner wall of the sliding groove (301) is provided with two sets of stop grooves (302). The inside of the stop groove (302) is provided with two sets of first springs (303). One end of the first spring (303) is fixedly connected to the stop groove (302), and the other end is fixedly connected to the stop (304). The inner wall of the sliding groove (301) is slidably connected to the locking block (305), and the top of the locking block (305) is fixedly connected to the butterfly insulator (4).

8. A high-strength insulated crossarm for preventing conductor detachment according to claim 1, characterized in that: The connecting mechanism (5) includes a fixing hole (501), a bolt (502), a nut (503) and a first fixing groove (504). The surface of the butterfly insulator (4) is provided with a fixing hole (501). The inner wall of the fixing hole (501) is slidably connected with a bolt (502). One end of the bolt (502) is threadedly connected with a nut (503). The surface of the bolt (502) is provided with a first fixing groove (504). The inner wall of the first fixing groove (504) is slidably connected with a binding wire (6).

9. A high-strength insulated crossarm for preventing conductor detachment according to claim 1, characterized in that: The surface of the composite crossarm (1) has multiple sets of positioning holes (10).

10. A high-strength, conductor-resistant insulating crossarm according to claim 1, characterized in that: The composite crossarm (1) is made of basalt fiber reinforced epoxy resin-based composite material, and the surface of the composite crossarm (1) is coated with a nano-silica modified coating.

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