CN114934711B

CN114934711B - Electric power cross arm

Info

Publication number: CN114934711B
Application number: CN202210581195.8A
Authority: CN
Inventors: 郭路
Original assignee: Yuncheng Power Supply Company State Grid Shandong Electric Power Co
Current assignee: Yuncheng Power Supply Company State Grid Shandong Electric Power Co
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2023-06-23
Anticipated expiration: 2042-05-26
Also published as: CN114934711A

Abstract

The invention discloses an electric power cross arm, which comprises a pole device, an anti-skid assembly and a cross arm assembly, wherein the lower parts of a left hoop and a right hoop are connected through bolts; the cross arm assembly comprises an insulating porcelain bottle arranged on the upper bottom plate of the supporting arm and the upper part of the bottom plate, and the cable is fixed on the insulating porcelain bottle. According to the invention, the anti-skid assembly is arranged on the inner side of the pole holding device, the pole is held tightly by the cam of the anti-skid assembly, so that the problem that the hoop is loosened due to swinging of the wire after the cross arm is used for a long time is avoided, and the use stability of the cross arm is ensured.

Description

Electric power cross arm

Technical Field

The invention belongs to the field of cable suspension equipment, and particularly relates to an electric power cross arm.

Background

The cross arm is an angle iron transversely fixed at the top of the telegraph pole, is used for installing insulators and hardware fittings to support wires and lightning conductors, and keeps a certain safety distance according to regulations, and is an important component in the pole tower. The mode that adopts staple bolt or double-screw bolt fastening when current cross arm installation generally installs in the upper portion of pole, can produce the swing after receiving external force such as wind-force influence, can produce the dragging to the cross arm from this, after long-term use, the staple bolt of cross arm can produce not hard up, and the risk that the cross arm wholly exists to descend after the staple bolt is not hard up influences the stability that the cross arm supported wire and gold utensil.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide an electric power cross arm so as to solve the problems that after the conventional cross arm is used for a long time, a hoop is loosened due to swinging of a wire, so that the cross arm descends, and the mounting stability of the cross arm cannot be guaranteed.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

the utility model provides an electric power cross arm, includes hold pole device, skid-proof assembly and cross arm assembly, hold pole device includes left staple bolt and right staple bolt, left staple bolt and right staple bolt one side all are connected with the support arm, and the support arm is close to the one end of left staple bolt and right staple bolt and is provided with kidney slot one throughout, and the lower part of left staple bolt and right staple bolt passes through bolted connection, and the upper portion of left staple bolt and right staple bolt all is equipped with draw-in groove one, left staple bolt and right staple bolt inboard all are equipped with logical groove; the anti-slip assembly is arranged in the through groove and comprises a cam, the cam is arranged on the connecting shaft, the connecting shaft is movably arranged in the first kidney-shaped groove, clamping plates are arranged at two ends of the connecting shaft, a clamping groove II is formed in the upper part of the clamping plate, a connecting screw rod is arranged in the clamping groove II, the left end of the connecting screw rod is hinged with the clamping groove II of the left hoop, the right end of the connecting screw rod is movably clamped in the clamping groove II of the right hoop, the upper parts of the left hoop and the right hoop are fastened through nuts, and when the upper parts of the left hoop and the right hoop are fastened, the small-diameter outer edge of the cam is propped against the outer wall of the electric pole; the cross arm assembly comprises an insulating porcelain bottle arranged on the upper bottom plate of the supporting arm and the upper portion of the bottom plate, and the cable is fixed on the insulating porcelain bottle.

As a further preferable mode of the technical scheme, guide holes (not shown in the figure) are formed in two sides of the left hoop and the right hoop, a bayonet lock component is arranged in each guide hole, each bayonet lock component comprises a shell, a guide rod is arranged in each shell, one end of each guide rod is connected with a pull ring, the other end of each guide rod is connected with a bayonet lock body, the bayonet lock bodies are in clearance fit with the guide holes, and one end of each bayonet lock body extends to the inside of one bayonet lock groove; through set up bayonet lock subassembly at draw-in groove one-to-one, utilize the bayonet lock body to restrict connecting screw in the logical groove lower part of left staple bolt and right staple bolt, avoided the other end of connecting screw to drop from draw-in groove two upper portions of cardboard, guaranteed the stability of staple bolt device connection.

As a further preferable mode of the technical scheme, one side of the bayonet lock body is provided with an inclined plane, a first spring is sleeved outside the guide rod, one end of the first spring is fixedly connected with the bayonet lock body, and the other end of the first spring is connected with the inner wall of the shell; when the connecting screw rod is installed in the through groove, after the connecting screw rod contacts with the inclined surface of the bayonet lock body, the connecting screw rod is continuously pressed down, the bayonet lock body slides to the right side under the action of the inclined surface until the connecting screw rod is completely clamped into the inside of the through groove, and the bayonet lock body resets under the action of the first spring, so that the connecting screw rod is limited at the bottom of the through groove, and the use convenience of the bayonet lock assembly is improved.

As the further preference of this technical scheme, the one end that support arm upper portion is close to left staple bolt and right staple bolt is equipped with kidney slot two, and the both sides of kidney slot two are equipped with the correction board, cam upper portion is connected with the connecting rod, connecting rod and kidney slot two clearance fit, and the upper end of connecting rod is connected with the connecting plate, and when the path of cam offsets with the pole outer wall, the upper surface of connecting plate and the upper surface parallel and level of correction board, the quick audio-visual position of judgement cam of being convenient for to judge whether anti-skidding subassembly is installed in place.

As the further preference of this technical scheme, support arm upper portion is equipped with a plurality of kidney grooves III, the bottom plate lower part is equipped with fastening bolt, and fastening bolt clearance ground sets up in kidney groove III, and fastening bolt one end threaded connection has the nut, and kidney groove III is convenient for adjust the mounted position of cross arm subassembly to adjust the interval between the adjacent cable, and the maintenance of the cross arm of detachably cross arm subassembly convenience.

As a further preference of the technical scheme, limiting plates are arranged on two sides of the lower portion of the bottom plate, limiting grooves are formed between the limiting plates on two sides, the supporting arms are slidably arranged in the limiting grooves, the limiting grooves limit the rotation of the bottom plate, the cross arm assembly is twisted on the supporting arms when the cable swings, and the stability of the cross arm assembly is guaranteed.

As a further preferable mode of the technical scheme, the upper part of the bottom plate is provided with a damping component, the damping component comprises an outer ring and an inner ring arranged in the outer ring, wherein the outer ring is fixedly arranged on the bottom plate, the upper part of the inner ring is fixedly connected with a stand column, an insulating porcelain bottle is fixedly arranged on the stand column, the inner side of the outer ring is provided with a plurality of grooves, the outer side of the inner ring is provided with a plurality of bosses, the bosses are arranged in the grooves, two sides of the bosses are connected with springs II, and the other end of each spring II is connected with the side wall of each groove; when the cable swings, the cable twists the insulator, the traditional insulator is of a fixed structure, the cable and the insulator are in rigid connection, when the swing amplitude of the cable is large, the cable is easy to damage, the damping component allows the insulator to twist in a small amplitude range and has a reset function, the twisting of the insulator generated when the cable swings is effectively buffered, and the cable protecting device has a function of protecting wires and is favorable for reducing the damage of the cable.

As a further preferable mode of the technical scheme, top line components are arranged on two sides of the bottom plate, the top line components comprise rotating plates, the middle parts of the rotating plates are rotatably arranged on the bottom plate through pin shafts, arc-shaped grooves for accommodating the insulating porcelain bottles are formed in one sides of the rotating plates, vertical plates are connected to two ends of the rotating plates, the upper parts of the vertical plates are connected with supports, top line wheels are rotatably connected to the interiors of the supports, and cables are arranged on the outer sides of the top line wheels and are arranged in a V shape by bypassing the inner sides of the insulating porcelain bottles; the tension to the insulator vase when being favorable to reducing the cable swing, and when the cable swing, the tight back of top line wheel and the tight back of top between the cable in one side, the commentaries on classics board produces the rotation, and the top line wheel of the other end increases its tight power of top with the cable under the rotatory effect of commentaries on classics board, has guaranteed the tight effect of top of cable.

As a further preference of this technical scheme, support one side is rotationally connected with adjusting screw, and adjusting screw and riser threaded connection, and adjusting screw one end is equipped with the handle, and adjusting screw is convenient for adjust the position of top line wheel to adjust the tight effect in top line wheel pair cable's top.

As a further preference of the technical scheme, extension plates are arranged on two sides of the bottom plate, end plates are connected to the tail ends of the extension plates, springs III are arranged on the inner sides of the end plates, the other ends of the springs III are propped against the vertical plates, the springs III are favorable for buffering torsion of the rotating plates when the cable swings, and meanwhile the rotating plates can be quickly reset after torsion.

The beneficial effects of the invention are as follows:

1) According to the invention, the anti-skid assembly is arranged on the inner side of the pole holding device, the pole is held tightly by the cam of the anti-skid assembly, so that the problem that the hoop is loosened due to swinging of the wire after the cross arm is used for a long time is avoided, and the use stability of the cross arm is ensured.

2) The clamping pin assemblies are arranged on the two sides of the left hoop and the right hoop, the connecting screw is limited on the lower portion of the through groove by the clamping pin body, the other end of the connecting screw is prevented from falling off from the upper portion of the clamping groove II of the clamping plate, and the connection stability of the pole device is guaranteed.

3) The correcting structure of the cam is arranged on the upper portion of the supporting arm, so that the position of the cam can be judged quickly and intuitively, and whether the anti-skid assembly is installed in place or not can be judged.

4) The cross arm assembly and the supporting arm are arranged into a detachable structure, so that the cross arm assembly is convenient to maintain and replace, the limiting plate is arranged at the lower part of the bottom plate of the cross arm assembly, the bottom plate is driven to rotate when the lead is effectively prevented from swinging, and the stability of the cross arm assembly is guaranteed.

5) Compared with the traditional rigid connection between the porcelain insulator and the cable, the damping component provided by the invention enables the porcelain insulator to form flexible connection with the cable, allows the porcelain insulator to twist in a small amplitude range, has a reset function, effectively buffers the twisting generated by the porcelain insulator when the cable swings, has the function of protecting wires, and is beneficial to reducing the damage of the cable.

6) The two sides of the bottom plate are provided with the top line components, the positions of the top line wheels of the top line components are adjustable, when the cable swings, after the top tightening force between the top line wheel on one side and the cable is loosened, the rotating plate rotates, the top line wheel on the other end increases the top tightening force between the top line wheel on the other side and the cable under the rotation action of the rotating plate, and the top tightening effect of the cable is ensured; in addition, the spring III is arranged on the extension plate, so that torsion of the rotating plate is buffered when the cable swings, and quick reset after torsion of the rotating plate is facilitated.

Drawings

Fig. 1 is a view of a power crossarm according to the present invention.

Fig. 2 is a schematic view of a power cross arm structure according to the present invention.

Fig. 3 is a schematic diagram of a right hoop structure in an electric cross arm.

Fig. 4 is a schematic view of an assembly of a cam in an electric crossarm according to the present invention.

Fig. 5 is a partial cross-sectional view of a right staple in an electrical crossarm of the present invention.

FIG. 6 is a schematic view of an assembly of a cross arm assembly and a top wire assembly in an electric cross arm according to the present invention.

Fig. 7 is a schematic structural view of a cross arm assembly in an electric power cross arm according to the present invention.

FIG. 8 is a schematic view of a damping assembly in an electric crossarm according to the present invention.

Fig. 9 is a schematic structural view of a top wire assembly in an electric crossarm according to the present invention.

Fig. 10 is a top view of a cross arm assembly and top line assembly in an electric cross arm according to the present invention.

In the figure: 1. an electric pole; 2. a pole holding device; 201. a left hoop; 202. a right hoop; 203. a support arm; 204. a bolt; 205. a connecting screw; 206. a clamping groove I; 207. a through groove; 208. a waist-shaped groove I; 209. waist-shaped grooves II; 210. kidney-shaped grooves III; 3. an anti-slip assembly; 301. a cam; 302. a connecting shaft; 303. a clamping plate; 304. a clamping groove II; 305. a connecting rod; 306. a connecting plate; 307. a correction plate; 4. a bayonet component; 401. a housing; 402. a bayonet body; 403. a guide rod; 404. a first spring; 405. a pull ring; 5. a cross arm assembly; 501. a bottom plate; 502. a limiting plate; 503. a column; 504. an insulating porcelain bottle; 505. an extension plate; 506. an end plate; 507. a third spring; 508. a pin shaft; 6. a damping assembly; 601. an outer ring; 602. an inner ring; 603. a groove; 604. a boss; 605. a second spring; 7. a top line assembly; 701. a bracket; 702. a top line wheel; 703. adjusting a screw; 704. a rotating plate; 705. a vertical plate; 706. an arc-shaped groove; 8. and (3) a cable.

Detailed Description

The following description of the embodiments of the present invention will be made more fully hereinafter with reference to the accompanying drawings, in which it is shown, however, in an illustrative embodiment of the invention, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, a particular orientation configuration and operation, and thus should not be construed as limiting the present invention.

As shown in fig. 1-4, an electric power cross arm comprises a holding pole device 2, an anti-slip assembly 3 and a cross arm assembly 5, wherein the holding pole device 2 comprises a left holding hoop 201 and a right holding hoop 202, one sides of the left holding hoop 201 and the right holding hoop 202 are respectively connected with a supporting arm 203, one ends, close to the left holding hoop 201 and the right holding hoop 202, of the supporting arms 203 are provided with waist-shaped grooves 208 in a penetrating manner, the lower parts of the left holding hoop 201 and the right holding hoop 202 are connected through bolts 204, the upper parts of the left holding hoop 201 and the right holding hoop 202 are respectively provided with a clamping groove 206, and through grooves 207 are respectively formed in the inner sides of the left holding hoop 201 and the right holding hoop 202; the anti-skid assembly 3 is installed in the through groove 207, the anti-skid assembly 3 comprises a cam 301, the cam 301 is installed on a connecting shaft 302, the connecting shaft 302 is movably installed in a kidney-shaped groove one 208, clamping plates 303 are arranged at two ends of the connecting shaft 302, a clamping groove two 304 is arranged at the upper part of the clamping plates 303, a connecting screw 205 is arranged in the clamping groove two 304, the left end of the connecting screw 205 is hinged with the clamping groove two 304 of the left hoop 201, the right end of the connecting screw 205 is movably clamped in the clamping groove two 304 of the right hoop 202, the upper parts of the left hoop 201 and the right hoop 202 are fastened through nuts, and when the upper parts of the left hoop 201 and the right hoop 202 are fastened, the small-diameter outer edge of the cam 301 is abutted against the outer wall of the electric pole 1; the cross arm assembly 5 comprises a base plate 501 arranged on the supporting arm 203 and an insulating porcelain bottle 504 arranged on the upper part of the base plate 501, and the cable 8 is fixed on the insulating porcelain bottle 504.

As shown in fig. 5, in this embodiment, guide holes (not shown in the drawing) are formed on both sides of the left hoop 201 and the right hoop 202, a bayonet component 4 is disposed in the guide holes, the bayonet component 4 includes a housing 401, a guide rod 403 is disposed in the housing 401, one end of the guide rod 403 is connected with a pull ring 405, the other end of the guide rod 403 is connected with a bayonet body 402, the bayonet body 402 is in clearance fit with the guide holes, and one end of the bayonet body 402 extends into the first slot 206; through set up bayonet lock subassembly 4 in draw-in groove one 206 one side, utilize bayonet lock body 402 to restrict connecting screw 205 in the logical groove 207 lower part of left staple bolt 201 and right staple bolt 202, avoided the other end of connecting screw 205 to follow draw-in groove two 304 upper portion of cardboard 303 and drop, guaranteed the stability of staple bolt device 2 connection.

As shown in fig. 5, in this embodiment, a slant is disposed on one side of the bayonet body 402, a first spring 404 is sleeved outside the guide rod 403, one end of the first spring 404 is fixedly connected with the bayonet body 402, and the other end of the first spring 404 is connected with the inner wall of the housing; when the connecting screw rod 205 is installed in the through groove 207, after the connecting screw rod 205 contacts with the inclined surface of the bayonet lock body 402, the connecting screw rod 205 is continuously pressed down, the bayonet lock body 402 slides to the right side under the action of the inclined surface until the connecting screw rod 205 is completely clamped into the inside of the through groove 207, and the bayonet lock body 402 resets under the action of the first spring 404, so that the connecting screw rod 205 is limited at the bottom of the through groove 207, and the convenience of using the bayonet lock assembly 4 is improved.

As shown in fig. 2 and 4, in this embodiment, one end of the upper portion of the supporting arm 203, which is close to the left hoop 201 and the right hoop 202, is provided with a second kidney-shaped slot 209, two sides of the second kidney-shaped slot 209 are provided with correction plates 307, the upper portion of the cam 301 is connected with a connecting rod 305, the connecting rod 305 is in clearance fit with the second kidney-shaped slot 209, the upper end of the connecting rod 305 is connected with a connecting plate 306, and when the minor diameter of the cam 301 abuts against the outer wall of the electric pole 1, the upper surface of the connecting plate 306 is flush with the upper surface of the correction plates 307, so as to facilitate quick and visual determination of the position of the cam 301, thereby determining whether the anti-skid assembly 3 is installed in place.

As shown in fig. 3-4, in this embodiment, the support arm 203 is provided with a plurality of kidney-shaped grooves three 210 on an upper portion thereof, the bottom plate 501 is provided with a fastening bolt 204 on a lower portion thereof, the fastening bolt 204 is disposed in the kidney-shaped grooves three 210 in a clearance manner, one end of the fastening bolt 204 is in threaded connection with a nut, the kidney-shaped grooves three 210 facilitate adjusting the installation position of the cross arm assembly 5, thereby adjusting the distance between adjacent cables 8, and the detachable cross arm assembly 5 facilitates maintenance of the cross arm.

As shown in fig. 6, in this embodiment, limiting plates 502 are disposed on two sides of the lower portion of the bottom plate 501, limiting grooves are formed between the limiting plates 502 on two sides, the supporting arm 203 is slidably mounted in the limiting grooves, the limiting grooves limit the rotation of the bottom plate 501, the cross arm assembly 5 is prevented from twisting on the supporting arm 203 when the cable 8 swings, and the stability of the cross arm assembly 5 is ensured.

As shown in fig. 6-8, in this embodiment, a damping component 6 is disposed at an upper portion of the bottom plate 501, the damping component 6 includes an outer ring 601 and an inner ring 602 disposed inside the outer ring 601, wherein the outer ring 601 is fixedly mounted on the bottom plate 501, an upright post 503 is fixedly connected to an upper portion of the inner ring 602, an insulating porcelain bottle 504 is fixedly mounted on the upright post 503, a plurality of grooves 603 are disposed inside the outer ring 601, a plurality of bosses 604 are disposed outside the inner ring 602, the bosses 604 are disposed inside the grooves 603, two sides of the bosses 604 are connected with springs two 605, and another end of the springs two 605 is connected with a side wall of the grooves 603; when the cable 8 swings, the cable 8 twists the insulating porcelain insulator 504, the traditional insulating porcelain insulator 504 is of a fixed structure, the cable 8 and the insulating porcelain insulator 504 are in rigid connection, when the swing amplitude of the cable 8 is large, the cable 8 is easy to damage, the damping component 6 allows the insulating porcelain insulator 504 to twist in a small amplitude range and has a reset function, the twisting of the insulating porcelain insulator 504 generated when the cable 8 swings is effectively buffered, and the cable 8 is protected, so that the damage of the cable 8 is reduced.

As shown in fig. 6 and fig. 9-10, in this embodiment, top wire assemblies 7 are disposed on two sides of the bottom plate 501, the top wire assemblies 7 include a rotating plate 704, the middle part of the rotating plate 704 is rotatably mounted on the bottom plate 501 through a pin shaft 508, an arc-shaped groove 706 for accommodating the insulating porcelain bottle 504 is disposed on one side of the rotating plate 704, two ends of the rotating plate 704 are connected with a vertical plate 705, a bracket 701 is connected to the upper part of the vertical plate 705, a top wire wheel 702 is rotatably connected to the inside of the bracket 701, and a cable 8 is disposed on the outer side of the top wire wheel 702 and is arranged in a V shape bypassing the inner side of the insulating porcelain bottle 504; the tension to the insulator 504 when being favorable to reducing cable 8 swing, and when cable 8 swings, the tight back of top line wheel 702 and the tight back of top between the cable 8 in one side, rotating plate 704 produces the rotation, and the top line wheel 702 of the other end increases its tight power of top with cable 8 under the rotation effect of rotating plate 704, has guaranteed the tight effect of top of cable 8.

As shown in fig. 9, in this embodiment, an adjusting screw 703 is rotatably connected to one side of the bracket 701, and the adjusting screw 703 is in threaded connection with a riser 705, a handle is disposed at one end of the adjusting screw 703, and the adjusting screw 703 is convenient for adjusting the position of the top wire wheel 702, so as to adjust the tightening effect of the top wire wheel 702 on the cable 8.

As shown in fig. 6, in this embodiment, the two sides of the bottom plate 501 are provided with extension plates 505, the ends of the extension plates 505 are connected with end plates 506, the inner sides of the end plates 506 are provided with springs three 507, the other ends of the springs three 507 are propped against the vertical plates 705, the springs three 507 are beneficial to buffering the torsion of the rotating plate 704 when the cable 8 swings, and meanwhile, the rotating plate 704 is convenient to quickly reset after being twisted.

During the use, install left staple bolt 201 and right staple bolt 202 in pole 1 upper end to utilize bolt 204 to fasten the lower part of left staple bolt 201 and right staple bolt 202, then utilize connecting screw 205 to connect left staple bolt 201 and right staple bolt 202's anti-skidding subassembly 3, the anti-skidding subassembly 3 of both sides is connected the back, and the minor diameter outer fringe of anti-skidding subassembly 3's cam 301 offsets with the outer wall of pole 1, and accessible observation connecting plate 306 and correction plate 307 are parallel and level, come the deflection angle of quick judgement cam 301 minor diameter, when cam 301 is not the minor diameter offsets with pole 1, the accessible rotates the mode of connecting plate 306, adjusts the deflection angle of cam 301.

After the installation of the anti-slip assembly 3 is completed, when the pole holding device 2 slides up and down, friction exists between the cam 301 and the pole 1, the cam 301 rotates around the connecting shaft 302 under the action of friction, at the moment, the distance between the cams 301 at two sides is reduced, so that the clamping force of the cam 301 to the pole 1 is increased, the pole holding device 2 is prevented from sliding up and down, and the stability of the cross arm is ensured.

When the cable 8 swings under the action of external force such as wind force, the cable 8 twists the insulating porcelain insulator 504, the damping component 6 allows the insulating porcelain insulator 504 to twist in a small amplitude range and has a reset function, so that the twisting generated by the insulating porcelain insulator 504 during the swinging of the cable 8 is effectively buffered, the cable protecting function is realized, and the damage of the cable 8 is reduced.

Meanwhile, the cable 8 is arranged in a V-shaped mode on the cross arm by the top wire assembly 7, so that the tension of the insulating porcelain bottle 504 when the cable 8 swings is reduced, after the tightening force between the top wire wheel 702 on one side and the cable 8 is loosened when the cable 8 swings, the rotating plate 704 rotates, the tightening force between the top wire wheel 702 on the other end and the cable 8 is increased under the rotating action of the rotating plate 704, the tightening effect of the cable 8 is guaranteed, and in addition, the spring III 507 is arranged on the extending plate 505, the torsion of the rotating plate 704 is buffered when the cable 8 swings, and meanwhile, the rotating plate 704 is convenient to reset quickly after torsion.

The foregoing is merely illustrative and explanatory of the invention, as it is well within the scope of the invention as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides an electric power cross arm, includes hold pole device, skid-proof assembly and cross arm assembly, hold pole device includes left staple bolt and right staple bolt, left staple bolt and right staple bolt one side all are connected with the support arm, and the support arm is close to the one end of left staple bolt and right staple bolt and is provided with kidney slot one throughout, and the lower part of left staple bolt and right staple bolt passes through bolted connection, and the upper portion of left staple bolt and right staple bolt all is equipped with draw-in groove one, left staple bolt and right staple bolt inboard all are equipped with logical groove; the anti-slip assembly is arranged in the through groove and comprises a cam, the cam is arranged on the connecting shaft, the connecting shaft is movably arranged in the first kidney-shaped groove, clamping plates are arranged at two ends of the connecting shaft, a clamping groove II is formed in the upper part of the clamping plate, a connecting screw rod is arranged in the clamping groove II, the left end of the connecting screw rod is hinged with the clamping groove II of the left hoop, the right end of the connecting screw rod is movably clamped in the clamping groove II of the right hoop, the upper parts of the left hoop and the right hoop are fastened through nuts, and when the upper parts of the left hoop and the right hoop are fastened, the small-diameter outer edge of the cam is propped against the outer wall of the electric pole; the cross arm assembly comprises an insulating porcelain bottle arranged on the upper bottom plate of the supporting arm and the upper portion of the bottom plate, and the cable is fixed on the insulating porcelain bottle.

2. The electric power cross arm according to claim 1, wherein guide holes are formed in two sides of the left hoop and the right hoop, a clamping pin assembly is arranged in the guide holes, the clamping pin assembly comprises a shell, a guide rod is arranged in the shell, one end of the guide rod is connected with a pull ring, the other end of the guide rod is connected with a clamping pin body, the clamping pin body is in clearance fit with the guide holes, and one end of the clamping pin body extends into the clamping groove.

3. The electric crossarm according to claim 2, wherein an inclined plane is arranged on one side of the bayonet body, a first spring is sleeved outside the guide rod, one end of the first spring is fixedly connected with the bayonet body, and the other end of the first spring is connected with the inner wall of the shell.

4. The electric power cross arm according to claim 1, wherein one end, close to the left hoop and the right hoop, of the upper portion of the supporting arm is provided with a second kidney-shaped groove, correction plates are arranged on two sides of the second kidney-shaped groove, the upper portion of the cam is connected with a connecting rod, the connecting rod is in clearance fit with the second kidney-shaped groove, the upper end of the connecting rod is connected with a connecting plate, and when the small diameter of the cam abuts against the outer wall of the electric pole, the upper surface of the connecting plate is flush with the upper surface of the correction plates.

5. The electric power cross arm according to claim 1, wherein the support arm is provided with a plurality of kidney-shaped grooves three on the upper portion, the bottom plate is provided with fastening bolts on the lower portion, the fastening bolts are arranged in the kidney-shaped grooves three in a clearance mode, and one ends of the fastening bolts are connected with nuts in a threaded mode.

6. The electric crossarm of claim 5, wherein the bottom plate is provided with limiting plates on two sides, limiting grooves are formed between the limiting plates on two sides, and the supporting arm is slidably installed in the limiting grooves.

7. The electric power cross arm according to any one of claims 1 to 6, wherein the damping assembly is arranged on the upper portion of the base plate and comprises an outer ring and an inner ring arranged in the outer ring, wherein the outer ring is fixedly arranged on the base plate, the upper portion of the inner ring is fixedly connected with a stand column, the insulating porcelain bottle is fixedly arranged on the stand column, a plurality of grooves are formed in the inner side of the outer ring, a plurality of bosses are formed in the outer side of the inner ring, the bosses are arranged in the grooves, two sides of the bosses are connected with springs II, and the other ends of the springs II are connected with the side walls of the grooves.

8. The electric power cross arm according to claim 7, wherein the top wire assemblies are arranged on two sides of the bottom plate, the top wire assemblies comprise rotating plates, the middle parts of the rotating plates are rotatably arranged on the bottom plate through pin shafts, arc-shaped grooves for accommodating the insulating porcelain bottles are formed in one sides of the rotating plates, vertical plates are connected to two ends of the rotating plates, the upper parts of the vertical plates are connected with supports, top wire wheels are rotatably connected to the interiors of the supports, and cables are arranged on the outer sides of the top wire wheels and bypass the inner sides of the insulating porcelain bottles to form V-shaped arrangement.

9. The electric crossarm of claim 8, wherein an adjusting screw is rotatably connected to one side of the bracket, and is screwed to the vertical plate, and a handle is provided at one end of the adjusting screw.

10. The electric crossarm of claim 8, wherein extension plates are arranged on two sides of the bottom plate, the tail ends of the extension plates are connected with end plates, the inner sides of the end plates are provided with springs III, and the other ends of the springs III are abutted against the vertical plates.