10 kilovolt adjustable distribution network overhead line cross arm support frame

Abstract

The invention relates to a 10 kilovolt adjustable cross arm support frame for an overhead line of a distribution network. Relates to the field of power distribution network frames. At present, when a cross arm is disassembled and assembled on an existing telegraph pole, the cross arm needs to be transferred to the ground to be placed due to the fact that the weight of the cross arm is large and the size is long, and potential safety hazards exist for operators. The anchor ear comprises a left anchor ear body, a right anchor ear body, cross arm supporting assemblies and locking mechanisms, the number of the cross arm supporting assemblies is the same as that of the locking mechanisms, and the locking mechanisms are inserted into the left anchor ear body or the right anchor ear body, so that the left anchor ear body and the right anchor ear body are in transverse detachable connection with the locking mechanisms; the top of each locking mechanism is longitudinally and detachably connected with the bottom of one cross arm supporting assembly, the left hoop body and the right hoop body are connected with the two cross arm supporting assemblies through the two locking mechanisms, and the cross arm supporting assemblies and the locking mechanisms are arranged on the side face of a telegraph pole. The invention is applied to the field of 10 kilovolt distribution network overhead line distribution network frames.

Description

Technical Field

[0001] The present invention relates to the field of power distribution network frames, and particularly to an adjustable cross-arm support frame for 10 kV overhead distribution lines. Background Art

[0002] At present, during the live working of 10 kV distribution networks, operators often need to disassemble and assemble cross-arms on poles. When converting from a single cross-arm to a double cross-arm, since the U-shaped clamp of the cross-arm cannot be fixed independently after being removed, another operator in a different direction needs to hold the cross-arm by hand to complete the operation. The cross-arm is heavy, long in volume, and is a conductor, so the risk coefficient of the removed and fixed cross-arm is extremely high. To ensure safety, after removing the cross-arm using the traditional method, the cross-arm needs to be transferred to the ground for placement to ensure the safety of the operators. This operation method has a high labor intensity and a long operation time, which is not conducive to the efficient development of work. In addition, during the operation of replacing the middle-phase insulator of the 10 kV wire while energized, the insulated small hoist method is usually used to temporarily lift the wire. However, when the insulated small hoist of the boom truck is operating, the operating range of the boom is large, which is prone to accidentally touching the wire and the grounding body, causing phase-to-phase and phase-to-ground short circuits. Moreover, the operating space for the operator in the boom truck is narrow, and it is difficult to meet the situation of parking 2 insulated boom trucks simultaneously at some operation sites with harsh conditions. It is necessary to avoid the insulated small hoist boom, which brings many inconveniences to the replacement process. Summary of the Invention

[0003] In order to solve the problem that when disassembling and assembling cross-arms on electric poles, due to the large weight and long volume of the cross-arms, the cross-arms need to be transferred to the ground for placement, which poses potential safety hazards to the operators, the present invention provides an adjustable cross-arm support frame for 10 kV overhead distribution lines.

[0004] The technical solution of the present invention is as follows:

[0005] An adjustable cross-arm support frame for 10 kV overhead distribution lines, the adjustable cross-arm support frame for 10 kV overhead distribution lines includes a left clamp body, a right clamp body, a cross-arm support assembly, and a locking mechanism;

[0006] The left clamp body and the right clamp body are symmetrically structured, and the tails of the left clamp body and the right clamp body are rotationally connected to form a pole clamp. The ends of the left clamp body and the right clamp body are locked by screwing the adjusting screw rod to lock the ends of the left clamp body and the right clamp body, thereby

[0007] The pole clamp is fixed on the utility pole. When in use, the number of cross-arm support components and locking mechanisms is the same, and the number of the cross-arm support components and locking mechanisms is 1 - 2. The locking mechanisms are respectively inserted into the left clamp body or the right clamp body, so that a transverse detachable connection is formed between the left clamp body and the right clamp body and the locking mechanisms. The top of each locking mechanism is respectively connected to the bottom of a cross-arm support component by a longitudinal detachable connection. The left clamp body and the right clamp body are connected to two cross-arm support components through two locking mechanisms. The cross-arm support components and the locking mechanisms are arranged on the side of the utility pole;

[0008] The top of the cross-arm support component is fixedly supported and connected with a cross-arm body or a support insulator to fix the cross-arm or the support insulator on the utility pole.

[0009] Further, the left clamp body and the right clamp body include a cabin slot, a gasket and a rotating shaft;

[0010] The cabin slot has an arc surface, and the locking mechanism is inserted into the cabin slots of the left clamp body and the right clamp body. Two gaskets are respectively installed at the top and bottom of the tails of the left clamp body and the right clamp body, and the rotating shaft passes through the gaskets, so that the left clamp body and the right clamp body can rotate through the rotating shaft to adjust the distance at the end openings of the left clamp body and the right clamp body.

[0011] Further, the cross-arm support component includes an insertion pipe, a main cross-arm support beam and a support beam frame;

[0012] The top of the insertion pipe is vertically and fixedly connected to the middle position of the bottom of the main cross-arm support beam, and a T-shaped frame is formed by the insertion pipe and the main cross-arm support beam. Two support beam frames are arranged above each main cross-arm support beam, and the support beam frames are arranged at both ends above the main cross-arm support beam.

[0013] Further, the support beam frame is an adjustable support beam frame, and the support beam frame includes a bolt assembly, a hook plate and a support plate;

[0014] The hook plate and the support plate are provided with mounting holes, and the bolt assembly is inserted into the mounting holes to connect the hook plate and the support plate, so as to adjust the angle of the hook plate through the bolt assembly.

[0015] Further, the locking mechanism includes an adjustment cabin, a through-fixing bolt, a synchronous nut, an upper support plate and a lower support plate;

[0016] The adjustment cabin is a cylindrical cabin structure, and a through-fixing bolt penetrates through the center of the adjustment cabin. The through-fixing bolt rotates within the adjustment cabin, and the bottom of the through-fixing bolt is fixedly connected to a synchronous nut. When the synchronous nut rotates, it drives the through-fixing bolt to rotate synchronously. The top of the adjustment cabin is fixedly connected to an upper support plate, and the lower support plate is fixed on the outer shell of the adjustment cabin, making the upper support plate and the lower support plate parallel to each other.

[0017] Further, the locking mechanism further includes an upper nut, a lower nut and a pressing plate;

[0018] The upper nut and the lower nut are screwed onto the through-fixing bolt, and both ends of the upper nut and the lower nut are symmetrically and fixedly connected to the pressing plate;

[0019] The pressing plates on the upper nut and the lower nut are arranged in parallel with the upper support plate and the lower support plate on the adjustment cabin.

[0020] Further, strip-shaped holes are respectively opened above and at the bottom on both sides of the adjustment cabin;

[0021] Pressing plates are respectively inserted into the strip-shaped holes, and the pressing plates on the upper nut and the lower nut slide up and down in the strip-shaped holes on the adjustment cabin, changing the distance between the pressing plates on the upper nut and the lower nut and the upper support plate and the lower support plate.

[0022] Further, bearings are respectively arranged at the center position of the upper support plate of the adjustment cabin and the bottom of the adjustment cabin, and the through-fixing bolt is fixedly connected to the inner ring surface of the bearing respectively;

[0023] When the through-fixing bolt rotates along the bearing, the upper nut and the lower nut on the through-fixing bolt rise or fall synchronously.

[0024] Further, the cross sections of the left clamp body and the right clamp body are I-shaped cylinder structures, and the gaps between the upper support plate of the adjustment cabin and the pressing plate of the upper nut are inserted onto the top plates of the left clamp body and the right clamp body, and the gaps between the lower support plate of the adjustment cabin and the pressing plate of the lower nut are inserted onto the bottom plates of the left clamp body and the right clamp body. The locking mechanism is fixed on both sides of the left clamp body and the right clamp body by changing the distances between the upper support plate, the lower support plate and the pressing plate.

[0025] The present invention has the following effects compared with the prior art:

[0026] 1. The present invention can support the cross-arm body and the support insulator. When supporting the cross-arm body, when the support insulator is not installed, the 10 kV adjustable distribution network overhead line cross-arm support frame can be used. After removing the hoop from the cross-arm body, the 10 kV adjustable distribution network overhead line cross-arm support frame can directly fix the cross-arm body on the pole, eliminating the process of transferring the cross-arm body up and down, and enabling a single operator to complete the disassembly and assembly operations of the cross-arm body and its accessories in the whole process; when the combined support insulator is installed, the 10 kV adjustable distribution network overhead line cross-arm support frame can temporarily fix the middle-phase conductor, keep the middle-phase conductor at a safe distance from the adjacent-phase conductor, increase the movable range of the operator, and can also be used for the operation project of replacing the insulator of the middle-phase straight pole of the 10 kV conductor while energized. Adapted to the horizontal arrangement and triangular arrangement of the line, the use of the 10 kV adjustable distribution network overhead line cross-arm support frame can greatly reduce the labor intensity of the operator, reduce the occupation of the operation surface, and has high practicability.

[0027] 2. The present invention has the characteristics of large mechanical strength and light weight at the same time. Rotate the bolt assembly on the cross-arm support assembly, and the bolt assembly adjusts the angle of the hook plate on the support plate. The adjustment process is mainly to lock the nut of the bolt assembly to adjust the angle. Through the angle adjustment of the hook plate on the cross-arm support assembly, the support angle and the support position can be dynamically adjusted according to different pole tip diameters, and it can be used for various operation projects such as installing double cross-arms and changing single cross-arm to double cross-arm without power outage.

[0028] 3. The present invention enables the same operator to complete the operations of removing the U-shaped hoop, installing the double cross-arm and its accessories, and can be applied to the operation sites such as changing the straight pole to a tension pole and changing the straight pole to a terminal pole. When replacing the insulator of the middle-phase straight pole of the 10 kV while energized, after shielding the three-phase conductors, the 10 kV adjustable distribution network overhead line cross-arm support frame can be fixed at the pole head position of the pole first, install a temporary support insulator to support the middle-phase conductor, and complete the operation of replacing the middle-phase insulator after fixing the conductor.

[0029] 4. The present invention adopts a split structure between the hoop body, the cross-arm support assembly and the locking mechanism, solves the problem that the through bolts of the cross-arm cannot be installed after the installation of similar integrated devices, facilitates the installation and fastening of the device by the operator, and at the same time adapts to different working conditions. When installing a single cross-arm, only the unilateral fixing device needs to be installed, and when installing a double cross-arm, the bilateral fixing device is installed, which is more flexible.

[0030] 5. The present invention is widely used in the distribution network live working in Heilongjiang area, mainly used in the operations such as changing the straight pole to a tension pole while energized, replacing the switch on the pole while energized, and replacing the insulator of the middle-phase straight pole while energized. This achievement is applicable to the 10 kV distribution network live working, etc. Brief Description of the Drawings

[0031] Figure 1 is the structural schematic diagram of the present invention;

[0032] Figure 2 is the connection schematic diagram of the cross-arm support assembly and the locking mechanism;

[0033] Figure 3 is the connection schematic diagram of the left hoop body and the right hoop body;

[0034] Figure 4 is Figure 3 the top view of;

[0035] Figure 5 is the structural schematic diagram of the locking mechanism;

[0036] Figure 6 is Figure 5 the sectional view of;

[0037] Figure 7 is the structural schematic diagram of the cross-arm support assembly;

[0038] Figure 8 is the structural schematic diagram of the hook plate on the cross-arm support assembly;

[0039] Figure 9 is the structural schematic diagram when the locking mechanism is inserted into the cabin slot on the hoop body;

[0040] Figure 10 is the structural schematic diagram when the present invention supports the support insulator;

[0041] Figure 11 is the structural schematic diagram of the support insulator;

[0042] In the figure: 1, left hoop body; 2, right hoop body; 3, cross-arm support assembly; 4, locking mechanism; 5, tightening adjustment screw; 6, electric pole; 7, cross-arm body; 8, support insulator; 9, cabin slot; 10, gasket; 11, rotating shaft;

[0043] 31, insertion tube; 32, main cross-arm support beam; 33, support beam frame; 33-1, bolt assembly; 33-2, hook plate; 33-3, support plate;

[0044] 41, adjustment cabin; 42, through-fixing bolt; 43, synchronous nut; 44, upper support plate; 45, lower support plate; 46, upper nut; 47, lower nut; 48, pressing plate; 49, strip hole. Detailed implementation manners

[0045] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will, with reference to the accompanying drawings in the embodiments of the present invention, clearly and completely describe the technical solutions in the embodiments. The following embodiments are used to illustrate the present invention but not to limit the scope of the present invention.

[0046] Specific Embodiment 1: In combination with Figure 1 and Figure 2 describe this embodiment. A 10 kV adjustable distribution network overhead line cross-arm support frame in this embodiment, the 10 kV adjustable distribution network overhead line cross-arm support frame includes a left clamp body 1, a right clamp body 2, a cross-arm support assembly 3 and a locking mechanism 4;

[0047] The left clamp body 1 and the right clamp body 2 are symmetrically structured, and the tails of the left clamp body 1 and the right clamp body 2 are rotatably connected to form a pole clamp. The ends of the left clamp body 1 and the right clamp body 2 are locked by a tightening adjustment screw 5 to fix the pole clamp on the electric pole 6. When in use, the number of the cross-arm support assembly 3 and the locking mechanism 4 is the same, and the number of the cross-arm support assembly 3 and the locking mechanism 4 is 1 - 2. The locking mechanism 4 is respectively inserted into the left clamp body 1 or the right clamp body 2 to form a lateral detachable connection between the left clamp body 1, the right clamp body 2 and the locking mechanism 4. The top of each locking mechanism 4 and the bottom of a cross-arm support assembly 3 are connected by a longitudinal detachable connection. The left clamp body 1 and the right clamp body 2 are connected to two cross-arm support assemblies 3 through two locking mechanisms 4. The cross-arm support assembly 3 and the locking mechanism 4 are arranged on the side of the electric pole 6;

[0048] The top of the cross-arm support assembly 3 is fixedly supported and connected with a cross-arm body 7 or a support insulator 8 to fix the cross-arm 7 or the support insulator 8 on the electric pole 6.

[0049] The support insulator 8 includes an insulating column body, insulating umbrella skirts, a fixed joint, an epoxy resin insulating groove and a support frame, and can temporarily hold up the shielded conductor, and complete the operation of replacing the insulator of the middle-phase straight pole after fixation.

[0050] The left clamp body 1, the right clamp body 2, the cross-arm support assembly 3 and the locking mechanism 4 are made of a new type of aluminum alloy material, and on the basis of ensuring mechanical strength, the light-weight design is maximized to reduce the labor intensity of the operators and make it possible for a single person to install this device.

[0051] Main Performance and Indicators:

[0052] Total machine weight: 6.8 Kg;

[0053] Maximum clamping force of the clamp: 1350 N;

[0054] Load-bearing capacity: 170 Kg / unilateral;

[0055] Adjustable angle: ±15°;

[0056] Interference angle of cross-arm support modules on both sides: ±20.5°.

[0057] Specific Embodiment 2: Combining Figure 3 and Figure 4 to describe this embodiment, a 10 kV adjustable distribution network overhead line cross-arm support frame in this embodiment, the left hoop body 1 and the right hoop body 2 include a cabin slot 9, a gasket 10 and a rotating shaft 11;

[0058] The cabin slot 9 has an arc surface, and the locking mechanism 4 is inserted into the cabin slots 9 of the left hoop body 1 and the right hoop body 2. Two gaskets 10 are respectively installed at the top and bottom of the tails of the left hoop body 1 and the right hoop body 2, and the rotating shaft 11 passes through the gasket 10, so that the left hoop body 1 and the right hoop body 2 rotate through the rotating shaft 11 to adjust the distance at the end openings of the left hoop body 1 and the right hoop body 2.

[0059] Specific Embodiment 3: Combining Figure 7 — Figure 9 to describe this embodiment, a 10 kV adjustable distribution network overhead line cross-arm support frame in this embodiment, the cross-arm support assembly 3 includes an insertion tube 31, a main cross-arm support beam 32 and a support beam frame 33;

[0060] The top of the insertion tube 31 is vertically and fixedly connected to the middle position of the bottom of the main cross-arm support beam 32 to form a T-shaped frame composed of the insertion tube 31 and the main cross-arm support beam 32. Two support beam frames 33 are arranged above each main cross-arm support beam 32, and the support beam frames 33 are arranged at both ends above the main cross-arm support beam 32.

[0061] The hoop body, the cross-arm support assembly and the locking mechanism 4 adopt a split structure, which solves the problem that the through bolts of the cross-arm cannot be installed after the installation of similar integrated devices, facilitates the installation and fastening of the device by the operators, and at the same time adapts to different working conditions. When installing a single cross-arm, only the unilateral fixing device needs to be installed, and when installing a double cross-arm, the bilateral fixing device is installed, which is more flexible.

[0062] Specific Embodiment 4: Combining Figure 7 — Figure 9 to describe this embodiment, a 10 kV adjustable distribution network overhead line cross-arm support frame in this embodiment, the support beam frame 33 is an adjustable support beam frame 33, and the support beam frame 33 includes a bolt assembly 33-1, a hook plate 33-2 and a support plate 33-3;

[0063] The hook plate 33-2 and the support plate 33-3 are provided with mounting holes, and the bolt assembly 33-1 is inserted into the mounting holes to connect the hook plate 33-2 and the support plate 33-3, so as to adjust the angle of the hook plate 33-2 through the bolt assembly 33-1.

[0064] The present invention simultaneously has the characteristics of high mechanical strength and light weight. The main parameters such as the maximum clamping force, load-bearing capacity, and adjustment angle of the hoop meet the working requirements during distribution network operation. It has the function of dynamically adjusting the support angle and the support position according to the different diameters of the pole tops, and can realize the operation of disassembling and assembling the cross arm by a single person and a single vehicle. It can be used for various operation items such as installing double cross arms without power interruption and changing a single cross arm to a double cross arm. The use of this device can greatly reduce the labor intensity of operators, save operation space and personnel, and has high practicability.

[0065] Specific Embodiment Five: Combine Figure 5 and Figure 6 to illustrate this embodiment. A 10-kV adjustable distribution network overhead line cross arm support frame of this embodiment

[0066] The locking mechanism 4 includes an adjustment chamber 41, a through-fixing bolt 42, a synchronous nut 43, an upper support plate 44, and a lower support plate 45;

[0067] The adjustment chamber 41 is a cylindrical chamber structure, and a through-fixing bolt 42 penetrates through the center of the adjustment chamber 41. The through-fixing bolt 42 rotates in the adjustment chamber 41. The bottom of the through-fixing bolt 42 is fixedly connected to the synchronous nut 43. When the synchronous nut 43 rotates, it drives the through-fixing bolt 42 to rotate synchronously. The top of the adjustment chamber 41 is fixedly connected to the upper support plate 44, and the lower support plate 45 is fixed on the outer shell of the adjustment chamber 41, so that the upper support plate 44 and the lower support plate 45 are in a parallel structure.

[0068] Specific Embodiment Six: Combine Figure 5 and Figure 6 to illustrate this embodiment. A 10-kV adjustable distribution network overhead line cross arm support frame of this embodiment, the locking mechanism 4 further includes an upper nut 46, a lower nut 47, and a pressing plate 48;

[0069] The upper nut 46 and the lower nut 47 are screwed onto the through-fixing bolt 42, and both ends of the upper nut 46 and the lower nut 47 are symmetrically and fixedly connected to the pressing plate 48;

[0070] The pressing plates 48 on the upper nut 46 and the lower nut 47 are parallel to the upper support plate 44 and the lower support plate 45 on the adjustment chamber 41.

[0071] It can be applied to the operation sites such as converting a straight pole into a strain pole and converting a straight pole into a terminal pole. When replacing the insulator of the middle-phase straight pole of 10 kV live, after shielding the three-phase conductors, the 10 kV adjustable distribution network overhead line cross-arm support frame can be fixed at the pole head position of the pole first, install a temporary support insulator to support the middle-phase conductor, and complete the operation of replacing the middle-phase insulator after fixing the conductor.

[0072] Specific Embodiment Seven: Combining Figure 9 and Figure 10 to describe this embodiment, a 10 kV adjustable distribution network overhead line cross-arm support frame of this embodiment, strip-shaped holes 49 are respectively opened above and at the bottom on both sides of the adjustment chamber 41;

[0073] Pressure plates 48 are respectively inserted into the strip-shaped holes 49, and the pressure plates 48 on the upper nut 46 and the lower nut 47 slide up and down in the strip-shaped holes 49 on the adjustment chamber 41, changing the distance between the pressure plates 48 on the upper nut 46 and the lower nut 47 and the upper support plate 44 and the lower support plate 45.

[0074] As the core load-bearing structure, by rotating the synchronous nut 43 at the bottom of the through-bolt 42, the through-bolt 42 drives the upper nut 46 and the lower nut 47 in the adjustment chamber 41 to move simultaneously. Through the pressure plates 48 on the upper nut 46 and the lower nut 47 and the upper support plate 44 and the lower support plate 45, the locking mechanism 4 is completely embedded in the chamber slot 9 of the left clamp body 1 and the right clamp body 2 and is tightened. The left clamp body 1 and the right clamp body 2 fix the device on the electric pole 6. The end parts of the left clamp body 1 and the right clamp body 2 are provided with tightening adjustment screws 5, which can adapt to various pole heads with a tip diameter of less than φ230. The insulating conductor is lifted by the hook plate 33-2 on the cross-arm support assembly.

[0075] Specific Embodiment Eight: Combining Figure 5 — Figure 10 to describe this embodiment, a 10 kV adjustable distribution network overhead line cross-arm support frame of this embodiment, bearings are respectively arranged at the upper support plate 44 of the adjustment chamber 41 and the center position of the bottom of the adjustment chamber 41, and the through-bolt 42 is fixedly connected with the inner ring surface of the bearing respectively;

[0076] When the through-bolt 42 rotates along the bearing, the upper nut 46 and the lower nut 47 on the through-bolt 42 rise or fall synchronously.

[0077] Specific Embodiment Nine: Combining Figure 1 — Figure 11To describe this embodiment, a 10 kV adjustable distribution network overhead line crossarm support frame in this embodiment. The cross-sections of the left clamp body 1 and the right clamp body 2 are I-shaped cylinder structures. The gap between the upper support plate 44 of the adjustment chamber 41 and the pressing plate 48 of the upper nut 46 is inserted onto the top plate of the left clamp body 1 and the right clamp body 2. The gap between the lower support plate 45 of the adjustment chamber 41 and the pressing plate 48 on the lower nut 47 is inserted onto the bottom plate of the left clamp body 1 and the right clamp body 2. The locking mechanism 4 is fixed on both sides of the left clamp body 1 and the right clamp body 2 by changing the distance between the upper support plate 44, the lower support plate 45 and the pressing plate 48.

[0078] When supporting the crossarm body 7, when the support insulator 8 is not installed, the 10 kV adjustable distribution network overhead line crossarm support frame can be used to directly fix the crossarm body on the electric pole after removing the clamp from the crossarm body 7, eliminating the process of the crossarm body 7 being transferred up and down, and enabling a single operator to complete the disassembly and assembly operations of the crossarm body and its accessories in the whole process; when the combined support insulator 8 is installed, the 10 kV adjustable distribution network overhead line crossarm support frame can temporarily fix the middle-phase conductor, keep the middle-phase conductor at a safe distance from the adjacent-phase conductor, increase the range of movement of the operator, and can also be used for the operation project of replacing the insulator of the middle-phase straight pole of the 10 kV conductor while energized. It is adapted to the horizontal arrangement and triangular arrangement of the line. The use of the 10 kV adjustable distribution network overhead line crossarm support frame can greatly reduce the labor intensity of the operator, not only reduce the occupation of the operation surface, but also has high practicability.

[0079] The above is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to make equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention and is based on the technical essence of the present invention, any simple modification, equivalent replacement and improvement made to the above embodiments within the spirit and principle of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An adjustable cross-arm support frame for a 10 kV distribution network overhead line, characterized in that, The 10 kV adjustable distribution network overhead line cross-arm support frame includes a left hoop body (1), a right hoop body (2), a cross-arm support assembly (3) and a locking mechanism (4); The left hoop body (1) and the right hoop body (2) are symmetrically structured, and the tails of the left hoop body (1) and the right hoop body (2) are rotatably connected to form a pole hoop. The ends of the left hoop body (1) and the right hoop body (2) are tightened by a tightening adjustment screw (5) to lock the ends of the left hoop body (1) and the right hoop body (2), thereby fixing the pole hoop on the electric pole (6). During use, the number of the cross-arm support assemblies (3) and the locking mechanisms (4) is the same, and the number of the cross-arm support assemblies (3) and the locking mechanisms (4) is 1 - 2. The locking mechanisms (4) are respectively inserted into the left hoop body (1) or the right hoop body (2) to form a lateral detachable connection between the left hoop body (1), the right hoop body (2) and the locking mechanism (4). The top of each locking mechanism (4) and the bottom of a cross-arm support assembly (3) are longitudinally detachably connected. The left hoop body (1) and the right hoop body (2) are connected to two cross-arm support assemblies (3) through two locking mechanisms (4). The cross-arm support assemblies (3) and the locking mechanisms (4) are arranged on the side of the electric pole (6); The top of the cross-arm support assembly (3) is fixedly supported and connected with a cross-arm body (7) or a support insulator (8) to fix the cross-arm (7) or the support insulator (8) on the electric pole (6).

2. The 10 kV adjustable distribution network overhead line cross arm support frame according to claim 1, characterized in that, The left hoop body (1) and the right hoop body (2) include a cabin slot (9), a gasket (10) and a rotating shaft (11); The cabin slot (9) has an arc-shaped surface, and the locking mechanism (4) is inserted into the cabin slots (9) of the left hoop body (1) and the right hoop body (2). Two gaskets (10) are respectively installed at the top and bottom of the tails of the left hoop body (1) and the right hoop body (2), and the gasket (10) passes through the rotating shaft (11), so that the left hoop body (1) and the right hoop body (2) rotate through the rotating shaft (11) to adjust the distance at the opening of the ends of the left hoop body (1) and the right hoop body (2).

3. The 10 kV adjustable distribution network overhead line cross arm support frame according to claim 1, characterized in that The cross-arm support assembly (3) includes an insertion tube (31), a main cross-arm support beam (32) and a support beam frame (33); The top of the insertion tube (31) is vertically fixedly connected to the middle position of the bottom of the main cross-arm support beam (32) to form a T-shaped frame composed of the insertion tube (31) and the main cross-arm support beam (32). Two support beam frames (33) are arranged above each main cross-arm support beam (32), and the support beam frames (33) are arranged at both ends above the main cross-arm support beam (32).

4. The 10 kV adjustable distribution network overhead line cross arm support frame according to claim 3, characterized in that, The support beam frame (33) is an adjustable support beam frame (33), and the support beam frame (33) includes a bolt assembly (33-1), a hook plate (33-2) and a support plate (33-3); The hook plate (33-2) and the support plate (33-3) are provided with mounting holes, and the bolt assembly (33-1) is inserted into the mounting holes to connect the hook plate (33-2) and the support plate (33-3), so as to adjust the angle of the hook plate (33-2) through the bolt assembly (33-1).

5. The 10 kV adjustable distribution network overhead line cross arm support frame according to claim 1, characterized in that, The locking mechanism (4) includes an adjustment chamber (41), a through-fixed bolt (42), a synchronous nut (43), an upper support plate (44) and a lower support plate (45); The adjustment chamber (41) is a cylindrical chamber structure, and the through-fixed bolt (42) penetrates through the center of the adjustment chamber (41). The through-fixed bolt (42) rotates in the adjustment chamber (41). The bottom of the through-fixed bolt (42) is fixedly connected to the synchronous nut (43). When the synchronous nut (43) rotates, it drives the through-fixed bolt (42) to rotate synchronously. The top of the adjustment chamber (41) is fixedly connected to the upper support plate (44), and the lower support plate (45) is fixed on the outer shell of the adjustment chamber (41), so that the upper support plate (44) and the lower support plate (45) are in a parallel structure.

6. The 10 kV adjustable distribution network overhead line cross arm support frame according to claim 5, characterized in that, The locking mechanism (4) further includes an upper nut (46), a lower nut (47) and a pressing plate (48); The upper nut (46) and the lower nut (47) are screwed onto the through-fixed bolt (42), and the pressing plates (48) are symmetrically and fixedly connected to both ends of the upper nut (46) and the lower nut (47); The pressing plates (48) on the upper nut (46) and the lower nut (47) are arranged in parallel with the upper support plate (44) and the lower support plate (45) on the adjustment chamber (41).

7. The 10 kV adjustable distribution network overhead line cross arm support frame according to claim 5 or 6, characterized in that, Strip-shaped holes (49) are respectively opened above and at the bottom on both sides of the adjustment chamber (41); The pressing plates (48) are respectively inserted into the strip-shaped holes (49), and the pressing plates (48) on the upper nut (46) and the lower nut (47) slide up and down in the strip-shaped holes (49) on the adjustment chamber (41) to change the distance between the pressing plates (48) on the upper nut (46) and the lower nut (47) and the upper support plate (44) and the lower support plate (45).

8. The 10 kV adjustable distribution network overhead line crossarm support frame according to claim 5 or 6, characterized in that, Bearings are respectively arranged at the upper support plate (44) of the adjustment chamber (41) and the center position of the bottom of the adjustment chamber (41), and the through-fixed bolt (42) is fixedly connected to the inner ring surfaces of the bearings respectively; When the through-fixed bolt (42) rotates along the bearings, the upper nut (46) and the lower nut (47) on the through-fixed bolt (42) rise or fall synchronously.

9. The 10 kV adjustable distribution network overhead line crossarm support frame according to claim 2, characterized in that, The cross-sections of the left clamp body (1) and the right clamp body (2) are I-shaped cylinder structures, and the gap between the upper support plate (44) of the adjustment cabin (41) and the pressing plate (48) of the upper nut (46) is inserted onto the top plates of the left clamp body (1) and the right clamp body (2). The gap between the lower support plate (45) of the adjustment cabin (41) and the pressing plate (48) on the lower nut (47) is inserted onto the bottom plates of the left clamp body (1) and the right clamp body (2). The locking mechanism (4) is fixed on both sides of the left clamp body (1) and the right clamp body (2) by changing the distance between the upper support plate (44), the lower support plate (45), and the pressing plate (48).

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