A reinforced power supply line cross arm

Abstract

The present invention relates to the technical field of power supply hardware, and in particular to a reinforced power supply line crossarm, comprising an upper clamp, two main crossarms, and a plurality of cable connectors, wherein the two main crossarms are relatively mounted on the left and right sides of the upper clamp; and further comprising a lower clamp, two secondary crossarms, two bolts and four oblique support rods, wherein the lower clamp is clamped on the line rod, the lower clamp is located below the upper clamp, the two secondary crossarms are relatively mounted on the front and rear sides of the lower clamp, bolts are mounted on the outer ends of the two secondary crossarms, the middle parts of the four oblique support rods are respectively connected with the two bolts, the upper ends of the four oblique support rods are respectively connected with the outer ends of the two main crossarms, the lower ends of the four oblique support rods are respectively located on the front and rear sides below the two secondary crossarms, and the plurality of cable connectors are respectively mounted on the lower ends of the two main crossarms and the four oblique support rods; the cross-shaped structure is adopted to improve the overall structural strength of the crossarm, and the pressure of the cables on the crossarm as a whole can be evenly distributed, the distance between the cables is increased, and the safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of power supply fittings, and in particular to a reinforced power supply line cross arm. Background Art

[0002] The power cross arm is an angle iron component fixed horizontally on the top of a power tower or cement pole, and is an important component of the tower. It is mainly used to support lines, install equipment, and keep a certain safe distance between wires to prevent short circuits and other faults between wires. In the prior art, a variety of power supply line cross arms are disclosed, such as an insulating cross arm for a power grid proposed in the publication number CN216974365U. The cross arm is provided with a threaded block, a dial wheel, a positive and negative screw rod and an adjustment plate. The distance between the insulating support seats is adjusted according to the actual high-voltage tower pole requirements. First, the door body on the front of the protective cover is opened, and then the dial wheel is dialed to drive the positive and negative screw rods to rotate. The slider slides inside the slide groove, so that the threaded block moves to drive the adjustment plate to move, and then the insulating support seat is driven to move through the insulating mounting seat to achieve the adjustment of the distance between the insulating support seats, meet the use in different situations, avoid the limitations caused by the fixed distance between the insulating support seats, and improve the practicality of the cross arm body, thereby solving the problem of inconvenience in adjusting the distance.

[0003] However, the reinforcing rod of the above-mentioned crossarm is located on the same vertical plane as the crossarm body, which can improve the load-bearing capacity of the crossarm body in the vertical direction, but the strength of the crossarm body in the lateral direction is not effectively strengthened. Moreover, the insulators of the crossarm are all installed on the crossarm body, resulting in a large load-bearing capacity of the crossarm body. The distance between the cables is relatively close, and increasing the cable spacing will increase the structural weight of the crossarm. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a reinforced power supply line crossarm which adopts a cross-shaped structure to improve the overall structural strength of the crossarm, can evenly distribute the pressure of the cables on the entire crossarm, increase the distance between cables, and improve safety.

[0005] The reinforced power supply line crossarm of the present invention comprises an upper clamp, two main crossarms, and a plurality of cable connectors, wherein the upper clamp is clamped on the line pole, and the two main crossarms are relatively installed on the left and right sides of the upper clamp; the lower clamp is also included, two secondary crossarms, two bolts and four oblique support rods, the lower clamp is clamped on the line pole, the lower clamp is located below the upper clamp, the two secondary crossarms are relatively installed on the front and rear sides of the lower clamp, bolts are installed on the outer ends of the two secondary crossarms, the middle parts of the four oblique support rods are respectively connected with the two bolts, the upper ends of the four oblique support rods are respectively connected with the outer ends of the two main crossarms, the lower ends of the four oblique support rods are respectively located on the front and rear sides below the two secondary crossarms, and the plurality of cable connectors are respectively installed on the lower ends of the two main crossarms and the four oblique support rods; the upper clamp and the lower clamp are clamped on the top of the line pole, and the two main crossarms are clamped on the top of the line pole. It is arranged in a cross shape with the two auxiliary cross arms, the lower clamp is located below the upper clamp, the middle parts of the four oblique support rods are respectively connected with two bolts, and the upper ends of the four oblique support rods are respectively connected with the outer ends of the two main cross arms, so that the four oblique support rods support the two main cross arms, and the cables are connected with multiple cable connectors respectively. Since the four oblique support rods are arranged obliquely, the two main cross arms can be effectively supported in the vertical and horizontal directions, so that the two main cross arms and the two auxiliary cross arms can effectively and reliably support each other, thereby enhancing the overall structural strength of the cross arms. Since multiple cable connectors are respectively arranged on the lower ends of the two main cross arms and the four oblique support rods, the pressure of the cables on the cross arms as a whole is evenly distributed, avoiding excessive load-bearing of the cross arm body. Compared with the prior art, the distance between cables is increased when the cross arm length is limited, thereby improving safety.

[0006] Preferably, the main cross arm includes a pipe beam, a mounting beam and bolt two, the inner end of the pipe beam is installed on the upper clamp, a slot is arranged on the outside of the pipe beam, a pin hole is arranged on the pipe beam, the inner end of the mounting beam is slidably inserted into the slot of the pipe beam, a plurality of positioning holes are evenly arranged on the inner end of the mounting beam, bolt two passes through the pin hole of the pipe beam and the positioning hole of the mounting beam and is screwed and fastened, cable connectors are installed on both the pipe beam and the mounting beam; the mounting beam is pulled along the slot of the pipe beam to adjust the spacing between the cable connector on the mounting beam and the cable connector on the pipe beam, and the mounting beam and the pipe beam are locked by bolt two, thereby adjusting the spacing between the power supply lines on the pipe beam and the mounting beam, with a firm connection, low cost and good versatility.

[0007] Preferably, the cable connector includes a shaft rod and an insulator, the shaft rod is installed on the main cross arm or the oblique support rod, and the insulator is arranged on the shaft rod; the insulator is installed through the shaft rod, and the cable is tied to the insulator through metal parts, thereby achieving reliable installation of the cable, with a simple structure and good practicality.

[0008] Preferably, the cable connector includes two shaft rods 2, two insulators 2 and two bolts 3, insulators 2 are installed on the upper parts of the two shaft rods 2, an annular wire groove is arranged in the middle parts of the two insulators 2, notches are arranged on the upper parts of the two insulators 2, the two insulators 2 are arranged opposite to each other, through holes are arranged on the two shaft rods 2, and the bolts 3 pass through the through holes of the two shaft rods 2 and are locked; the two shaft rods 2 are installed on the main cross arm or the oblique support rod, and when installing the cable, the two insulators 2 are rotated so that the notches of the two insulators 2 are rotated to be arranged relative to each other, and the cable is placed in the wire grooves of the two insulators 2 through the notches of the two insulators 2, and the two insulators 2 are reversed so that the two notches are rotated to be arranged opposite to each other. At this time, the through holes of the two shaft rods 2 are aligned, and the bolts 3 pass through the through holes of the two shaft rods 2 and are locked, so that the two shaft rods 2 and the two insulators 2 are locked, and the wire grooves of the two insulators 2 clamp the cable, thereby realizing rapid installation of the cable.

[0009] Preferably, two gear rings are further included. The lower parts of the two insulators 2 are both concentrically mounted with gear rings, and the two gear rings are meshed. The two insulators 2 are allowed to rotate synchronously in opposite directions through the two meshed gear rings, which is convenient for cable installation.

[0010] Preferably, the cable connecting part includes a cable seat, a pressure plate, a hook, a handle and a pressure rod. A slot for holding the cable is provided in the middle of the cable seat, an opening of the slot is provided on the upper end surface of the cable seat, the left end of the pressure plate is hinged to the left part of the cable seat, a hook is provided at the right end of the pressure plate, the lower end of the handle is hinged to the right part of the cable seat, a pressure rod is provided in the middle of the handle, and the pressure rod can be clamped on the hook; the cable seat is installed on the main cross arm or the oblique support rod, the cable is placed in the slot of the cable seat, the pressure plate is laid flat and pressed tightly on the cable, the handle is pulled upward to vertical so that the pressure rod is clamped on the hook, thereby completing the installation of the cable, and the operation is simple and practical.

[0011] Preferably, it also includes a support block and a spring, the support block is slidably installed in the lower part of the slot of the cable seat, the lower end of the spring is connected to the cable seat, and the upper end of the spring is connected to the support block; when the cable is pressed in the slot of the cable seat by the pressure plate, the support block cooperates with the pressure plate to clamp the cable, the spring is compressed, and the elastic force of the spring supports the support block upward, so that the clamping force of the cable is more stable and reliable.

[0012] Preferably, it also includes pad plate 1 and pad plate 2, pad plate 1 is installed at the lower part of the pressure plate, pad plate 2 is installed at the upper part of the support block, pad plate 1 and pad plate 2 are opposite to each other up and down; after the cable is clamped, pad plate 1 and pad plate 2 are placed on the outside of the cable to reduce clamping damage to the cable and improve the reliability of the cable.

[0013] Preferably, it also includes four cables, the upper ends of the four cables are respectively connected to the two main crossarms, and the lower ends of the four cables are respectively connected to the lower ends of the four oblique support rods; the four cables are respectively connected to the two main crossarms and the lower ends of the four oblique support rods, thereby assisting in tightening the lower ends of the four oblique support rods and improving the stability of the lower ends of the four oblique support rods.

[0014] Preferably, it also includes two cables 2 and two wire hoops, the upper ends of the two cables 2 are respectively connected to the two main crossarms, and the lower ends of the two cables 2 are installed with wire hoops, and the two wire hoops are used to pull and hang the cables located under the two main crossarms; after the four cable connectors on the four oblique support rods clamp the two cables, the two cables are passed under the two main crossarms, and the two wire hoops are used to clamp the two cables, so that the two cables 2 assist in pulling the cables to prevent the cables from loosening and swinging, causing cable damage.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the upper clamp and the lower clamp are installed on the top of the pole, and the two main crossarms and the two secondary crossarms are arranged in a cross shape, the lower clamp is located below the upper clamp, the middle parts of the four oblique support rods are respectively connected with two bolts, the upper ends of the four oblique support rods are respectively connected with the outer ends of the two main crossarms, so that the four oblique support rods support the two main crossarms, and the cables are respectively connected with multiple cable connectors. Since the four oblique support rods are arranged obliquely, the two main crossarms can be effectively supported in the vertical and horizontal directions, so that the two main crossarms and the two secondary crossarms can effectively and reliably support each other, thereby enhancing the overall structural strength of the crossarms. Since multiple cable connectors are respectively arranged on the lower ends of the two main crossarms and the four oblique support rods, the pressure of the cables on the crossarm as a whole is evenly distributed, avoiding excessive load-bearing of the crossarm body. Compared with the prior art, the distance between the cables is increased when the crossarm length is limited, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 is an axonometric schematic diagram of the present invention installed on a wire rod;

[0018] Figure 3 It is a front cross-sectional structural schematic diagram of the present invention installed on a wire rod;

[0019] Figure 4 is a schematic side view of the structure of the present invention installed on a wire rod;

[0020] Figure 5 It is a schematic diagram of the structure of the upper clamp, main cross arm and cable connector;

[0021] Figure 6 It is a structural diagram of the main cross arm in the disassembled state;

[0022] Figure 7 is a schematic structural diagram of the cable connector in the exploded state in Example 2;

[0023] Figure 8 is a schematic diagram of the axonometric structure of the cable connector in Example 3;

[0024] Fig. 9 is a schematic structural diagram of the cable connector in the exploded state in Example 3;

[0025] Fig.10 It is a structural diagram of cable connection, lower clamp, auxiliary cross arm, bolts, diagonal support rods and cables;

[0026] Fig.11 is an axonometric structural schematic diagram of the present invention in a cable loading state;

[0027] Fig.12 It is a schematic diagram of the top view of the structure of the present invention in a cable loading state.

[0028] Markings in the attached drawings: 1. upper clamp; 2. main cross arm; 3. cable connector; 4. lower clamp; 5. secondary cross arm; 6. bolt; 7. oblique support rod; 8. pipe beam; 9. mounting beam; 10. bolt two; 11. shaft rod two; 12. insulator two; 13. bolt three; 14. gear ring; 15. cable seat; 16. pressure plate; 17. hook; 18. handle; 19. pressure rod; 20. support block; 21. spring; 22. cable; 23. cable two; 24. wire clamp; 25. shaft rod one; 26. insulator one; 27. pad one; 28. pad two. DETAILED DESCRIPTION

[0029] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0030] Embodiment 1, as Figures 1 to 6 , Figures 10 to 12As shown, a reinforced power supply line crossarm comprises an upper clamp 1, two main crossarms 2, and a plurality of cable connectors 3, the upper clamp 1 clamps on the line pole, and the two main crossarms 2 are relatively installed on the left and right sides of the upper clamp 1; it also comprises a lower clamp 4, two secondary crossarms 5, two bolts 6 and four oblique support rods 7, the lower clamp 4 clamps on the line pole, the lower clamp 4 is located below the upper clamp 1, the two secondary crossarms 5 are relatively installed on the front and rear sides of the lower clamp 4, the outer ends of the two secondary crossarms 5 are installed with bolts 6, the middle parts of the four oblique support rods 7 are respectively connected with the two bolts 6, the upper ends of the four oblique support rods 7 are respectively connected with the outer ends of the two main crossarms 2, the lower ends of the four oblique support rods 7 are respectively located on the front and rear sides below the two secondary crossarms 5, and the plurality of cable connectors 3 are respectively installed on the lower ends of the two main crossarms 2 and the four oblique support rods 7; the main crossarm 2 comprises a pipe beam 8, a mounting beam 9 and bolts 10, and the inner end of the pipe beam 8 is installed on the upper clamp 1 A slot is arranged on the outside of the pipe beam 8, a latch hole is arranged on the pipe beam 8, the inner end of the mounting beam 9 is slidably inserted into the slot of the pipe beam 8, a plurality of positioning holes are evenly arranged on the inner end of the mounting beam 9, a bolt 10 passes through the latch hole of the pipe beam 8 and the positioning hole of the mounting beam 9 and is screwed and fastened, and a cable connector 3 is installed on both the pipe beam 8 and the mounting beam 9; the cable connector 3 includes a shaft rod 25 and an insulator 26, the shaft rod 25 is installed on the main cross arm 2 or the oblique support rod 7, and the shaft rod An insulator 26 is arranged on the first 25; it also includes four cables 22, the upper ends of the four cables 22 are respectively connected to the two main cross arms 2, and the lower ends of the four cables 22 are respectively connected to the lower ends of the four oblique support rods 7; it also includes two second cables 23 and two wire hoops 24, the upper ends of the two second cables 23 are respectively connected to the two main cross arms 2, and the lower ends of the two second cables 23 are installed with wire hoops 24, and the two wire hoops 24 are used to pull and hang the cables located below the two main cross arms 2.

[0031] The upper clamp 1 and the lower clamp 4 are installed on the top of the line pole, and the two main cross arms 2 and the two auxiliary cross arms 5 are arranged in a cross shape. The lower clamp 4 is located below the upper clamp 1, and the mounting beam 9 is pulled along the slot of the pipe beam 8 to adjust the distance between the cable connector 3 on the mounting beam 9 and the cable connector 3 on the pipe beam 8, and the mounting beam 9 and the pipe beam 8 are locked by bolts 2 10, so as to adjust the distance between the pipe beam 8 and the power supply lines on the mounting beam 9, the middle parts of the four oblique support rods 7 are respectively connected with two bolts 6, and the upper ends of the four oblique support rods 7 are respectively connected with the outer ends of the two main cross arms 2, so that the four oblique support rods 7 support the two main cross arms 2, the insulator 26 is installed through the shaft rod 25, and the cable is tied to the insulator 26 through metal parts to achieve reliable installation of the cable, and the four cables 22 are respectively connected to the lower ends of the two main cross arms 2 and the four oblique support rods 7, so as to fix the lower ends of the four oblique support rods 7. Auxiliary tensioning improves the stability of the lower ends of the four oblique support rods 7. After the four cable connectors 3 on the four oblique support rods 7 clamp the two cables, the two cables are passed through the bottom of the two main crossarms 2. Two wire clamps 24 are used to clamp the two cables, so that the two cables 23 assist in pulling the cables to prevent the cables from loosening and swinging, causing cable damage. Since the four oblique support rods 7 are arranged obliquely, they can effectively support the two main crossarms 2 in the vertical and horizontal directions, so that the two main crossarms 2 and the two auxiliary crossarms 5 can effectively and reliably support each other, thereby strengthening the overall structural strength of the crossarm. Since multiple cable connectors 3 are respectively arranged on the lower ends of the two main crossarms 2 and the four oblique support rods 7, the pressure of the cables on the entire crossarm is evenly distributed, avoiding excessive load-bearing of the crossarm body. Compared with the prior art, the distance between cables is increased when the crossarm length is limited, thereby improving safety.

[0032] Embodiment 2, as Figures 5 to 7 As shown, the cable connector 3 includes two shaft rods 11, two insulators 12 and two bolts 13. The insulators 12 are installed on the upper parts of the two shaft rods 11, the middle parts of the two insulators 12 are provided with annular wire grooves, the upper parts of the two insulators 12 are provided with notches, the two insulators 12 are arranged opposite to each other, the two shaft rods 11 are provided with through holes, the bolts 13 pass through the through holes of the two shaft rods 11 and are locked; it also includes two gear rings 14, the lower parts of the two insulators 12 are concentrically installed with the gear rings 14, and the two gear rings 14 are meshed.

[0033] The two shaft rods 11 are installed on the main cross arm 2 or the oblique support rod 7. When installing the cable, the two insulators 12 are rotated, and the two insulators 12 are rotated synchronously in opposite directions through the two meshing gear rings 14, so that the notches of the two insulators 12 are rotated to be relatively arranged, and the cable is placed into the wire grooves of the two insulators 12 through the notches of the two insulators 12, and the two insulators 12 are reversed so that the two notches are rotated to be arranged opposite to each other. At this time, the through holes of the two shaft rods 11 are aligned, and the bolts 13 are passed through the through holes of the two shaft rods 11 and locked, so that the two shaft rods 11 and the two insulators 12 are locked, and the two insulator 12 wire grooves clamp the cable, thereby realizing the rapid installation of the cable.

[0034] Embodiment 3, as Figure 8 and Fig. 9 As shown, the cable connector 3 includes a cable seat 15, a pressure plate 16, a hook 17, a handle 18 and a pressure rod 19. A slot for holding the cable is arranged in the middle of the cable seat 15, and an opening of the slot is arranged on the upper end surface of the cable seat 15. The left end of the pressure plate 16 is hinged to the left part of the cable seat 15, and the right end of the pressure plate 16 is provided with a hook 17. The lower end of the handle 18 is hinged to the right part of the cable seat 15, and a pressure rod 19 is arranged in the middle of the handle 18, and the pressure rod 19 can be clamped on the hook 17; it also includes a support block 20 and a spring 21, the support block 20 is slidably installed at the lower part of the slot of the cable seat 15, the lower end of the spring 21 is connected to the cable seat 15, and the upper end of the spring 21 is connected to the support block 20; it also includes a pad 27 and a pad 28, the pad 1 27 is installed at the lower part of the pressure plate 16, and the pad 2 28 is installed at the upper part of the support block 20, and the pad 1 27 and the pad 2 28 are opposite to each other up and down.

[0035] The cable seat 15 is installed on the main cross arm 2 or the oblique support rod 7, the cable is placed in the groove of the cable seat 15, the support block 20 supports the cable, the pad 28 is padded between the cable and the support block 20, the pressure plate 16 is laid flat and pressed tightly on the cable, the pad 1 27 is padded between the cable and the pressure plate 16, the handle 18 is pulled upward to vertical, so that the pressure rod 19 is clamped on the hook 17, the support block 20 cooperates with the pressure plate 16 to clamp the cable, the spring 21 is compressed, and the elastic force of the spring 21 supports the support block 20 upward, so that the clamping force of the cable is more stable and reliable, thereby completing the cable installation, simple operation and good practicality.

[0036] like Figures 1 to 12As shown, a reinforced power supply line crossarm of the present invention, when working, firstly, the upper clamp 1 and the lower clamp 4 are clamped and installed on the top of the line pole, and the two main crossarms 2 and the two auxiliary crossarms 5 are arranged in a cross shape, and the lower clamp 4 is located below the upper clamp 1, and then the middle parts of the four oblique support rods 7 are respectively connected with two bolts 6, and the upper ends of the four oblique support rods 7 are respectively connected with the outer ends of the two main crossarms 2, so that the four oblique support rods 7 support the two main crossarms 2, and then a plurality of cables are respectively loaded onto the plurality of cable connectors 3 on the two main crossarms 2 and the four oblique support rods 7. Multiple cables are arranged respectively above and below the two main crossarms 2, and two wire hoops 24 are used to hoop the two cables located below, so that the two cables 23 assist in pulling the cables to prevent the cables from loosening and swinging. Finally, since the four oblique support rods 7 are arranged obliquely, the two main crossarms 2 can be effectively supported in the vertical and horizontal directions, so that the two main crossarms 2 and the two auxiliary crossarms 5 can effectively and reliably support each other. The four cables 22 are respectively connected to the lower ends of the two main crossarms 2 and the four oblique support rods 7, so as to assist in tightening the lower ends of the four oblique support rods 7.

[0037] The main functions achieved by the present invention are:

[0038] 1. Use a cross-shaped structure to improve the overall structural strength of the crossarm;

[0039] 2. It can evenly distribute the pressure of the cables on the cross arm, avoid excessive load on the cross arm, and improve safety;

[0040] 3. Multiple cables are distributed above and below the two main cross arms 2 through multiple cable connectors 3 distributed up and down, increasing the distance between the cables and improving safety when the length of the cross arms is limited.

[0041] The installation method, connection method or setting method of a reinforced power supply line crossarm of the present invention are all common mechanical methods, and can be implemented as long as the beneficial effects can be achieved; the upper clamp 1, main crossarm 2, cable connector 3, lower clamp 4, bolt 6, bolt 2 10, shaft rod 2 11, insulator 2 12, bolt 3 13, gear ring 14, spring 21, pad 1 27, pad 2 28, cable 22, cable 23, shaft rod 1 25, insulator 1 26 of a reinforced power supply line crossarm of the present invention are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A reinforced power supply line crossarm, comprising an upper clamp (1), two main crossarms (2), and a plurality of cable connectors (3), wherein the upper clamp (1) is clamped on a line pole, and the two main crossarms (2) are relatively mounted on the left and right sides of the upper clamp (1); characterized in that: The invention also comprises a lower clamp (4), two secondary cross arms (5), two bolts (6) and four oblique support rods (7), wherein the lower clamp (4) is clamped on the wire rod, the lower clamp (4) is located below the upper clamp (1), the two secondary cross arms (5) are relatively mounted on the front and rear sides of the lower clamp (4), the outer ends of the two secondary cross arms (5) are both mounted with bolts (6), the middle parts of the four oblique support rods (7) are respectively connected with the two bolts (6), the upper ends of the four oblique support rods (7) are respectively connected with the outer ends of the two main cross arms (2), the lower ends of the four oblique support rods (7) are respectively located on the front and rear sides below the two secondary cross arms (5), and a plurality of cable connectors (3) are respectively mounted on the lower ends of the two main cross arms (2) and the four oblique support rods (7).

2. A reinforced power supply line cross arm as claimed in claim 1, characterized in that: The main cross arm (2) comprises a pipe beam (8), a mounting beam (9) and bolt No. 2 (10); the inner end of the pipe beam (8) is mounted on the upper clamp (1); a slot is arranged on the outside of the pipe beam (8); a pin hole is arranged on the pipe beam (8); the inner end of the mounting beam (9) is slidably inserted into the slot of the pipe beam (8); a plurality of positioning holes are evenly arranged on the inner end of the mounting beam (9); bolt No. 2 (10) passes through the pin hole of the pipe beam (8) and the positioning hole of the mounting beam (9) and is screwed and fastened; the pipe beam (8) and the mounting beam (9) are both installed with cable connectors (3).

3. The reinforced power supply line cross arm according to claim 1, characterized in that: The cable connector (3) comprises a shaft rod (25) and an insulator (26); the shaft rod (25) is mounted on the main cross arm (2) or the oblique support rod (7); and the insulator (26) is arranged on the shaft rod (25).

4. The reinforced power supply line cross arm according to claim 1, characterized in that: The cable connector (3) comprises two shaft rods (11), two insulators (12) and two bolts (13). The upper parts of the two shaft rods (11) are both equipped with insulators (12). The middle parts of the two insulators (12) are both provided with an annular wire groove. The upper parts of the two insulators (12) are both provided with a notch. The two insulators (12) are arranged opposite to each other. The two shaft rods (11) are both provided with a through hole. The bolts (13) pass through the through holes of the two shaft rods (11) and are locked.

5. A reinforced power supply line cross arm as claimed in claim 4, characterized in that: It also includes two gear rings (14), the gear rings (14) are concentrically mounted on the lower parts of the two insulators (12), and the two gear rings (14) are meshed.

6. The reinforced power supply line cross arm according to claim 1, characterized in that: The cable connector (3) comprises a cable seat (15), a pressure plate (16), a hook (17), a handle (18) and a pressure rod (19); a notch for holding the cable is arranged in the middle of the cable seat (15); an opening of the notch is arranged on the upper end surface of the cable seat (15); the left end of the pressure plate (16) is hinged to the left part of the cable seat (15); the right end of the pressure plate (16) is provided with a hook (17); the lower end of the handle (18) is hinged to the right part of the cable seat (15); a pressure rod (19) is arranged in the middle of the handle (18); and the pressure rod (19) can be clamped on the hook (17).

7. A reinforced power supply line cross arm as claimed in claim 6, characterized in that: It also includes a support block (20) and a spring (21), wherein the support block (20) is slidably mounted on the lower portion of the notch of the cable seat (15), the lower end of the spring (21) is connected to the cable seat (15), and the upper end of the spring (21) is connected to the support block (20).

8. The reinforced power supply line cross arm according to claim 7, characterized in that: It also includes a backing plate 1 (27) and a backing plate 2 (28), wherein the backing plate 1 (27) is installed at the lower part of the pressing plate (16), and the backing plate 2 (28) is installed at the upper part of the supporting block (20), and the backing plate 1 (27) and the backing plate 2 (28) are opposite to each other in the upper and lower parts.

9. The reinforced power supply line cross arm according to claim 1, characterized in that: It also includes four cables (22), the upper ends of the four cables (22) are respectively connected to the two main cross arms (2), and the lower ends of the four cables (22) are respectively connected to the lower ends of the four oblique support rods (7).

10. The reinforced power supply line cross arm according to claim 1, characterized in that: It also comprises two second cables (23) and two wire hoops (24), the upper ends of the two second cables (23) are respectively connected to the two main cross arms (2), the lower ends of the two second cables (23) are both equipped with wire hoops (24), and the two wire hoops (24) are used to pull and hoist cables located below the two main cross arms (2).

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