High-voltage overhead line power cross arm

Abstract

The invention relates to the technical field of power equipment, and provides a high-voltage overhead line power cross arm which comprises a high-altitude overhead fixing frame, a stringing angle adjusting mechanism and a second adjusting part, and the high-altitude overhead fixing frame comprises a cross arm body, a supporting rod, a first insulator and a first pin shaft. The stringing angle adjusting mechanism comprises a pipe body assembly, a first adjusting part, a transmission part and a stringing part, the stringing part comprises a second insulator, a bent rod, a second shaft pin and a transmission gear, and on one hand, the stability of line erection can be improved through a triangular structure formed among the cross arm, the supporting rod and the second adjusting part; on the other hand, the erection angle of the first insulator and the erection angle of the second insulator can be simultaneously adjusted with the first pin shaft as the axis and the erection angle of the second insulator can be adjusted with the second movable pin as the axis by rotating the rotating frame and the knob, and the erection angle can be conveniently adjusted according to the actual erection requirement and the surrounding environment of the line; the device has the characteristics of good stability, convenience in adjustment and high practicability.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, and in particular to a high-voltage overhead line electric power cross arm. Background Art

[0002] The cross arm is an important part of the tower. It is used to install insulators and hardware to support the conductors and lightning arresters, and to keep them at a certain safe distance as required to prevent the conductors from swinging due to wind and causing phase-to-phase short circuits. The cross arm can be divided into straight cross arm, corner cross arm and tension cross arm according to its use. The straight cross arm bears the vertical and horizontal loads of the conductor.

[0003] Patent No. CN112909871B discloses a high-voltage overhead line power crossarm, including a mounting frame, an insulator, a shifting slide, a snap-on rotating shaft, a snap-on rotating rod, a snap-on sliding block, a snap-on spring, a shifting mechanism, a positioning mechanism, a support seat and a support spring, which solves the problem that the current high-voltage overhead line power crossarm is often assembled and spliced ​​with a single steel structure truss, and it is difficult to adjust the spacing distance between the insulators according to the actual installed harness specifications to maintain a certain safety distance. Moreover, the power crossarm is often in high-altitude operation during installation and fixation, and a large number of support frames need to be assembled and fixed, which increases the work intensity and workload of workers' installation work. Moreover, the insulators on the power crossarm are generally fixedly installed. When they are damaged and need to be replaced, special disassembly tools are required, the manual workload is large, and it is difficult to improve the work efficiency of insulator disassembly and installation operations.

[0004] During the erection process of the high-voltage line, it is necessary to adjust the erection angle or position of the line according to the actual terrain or environmental adaptability nearby. Therefore, the above-mentioned power crossarms still have the following defects in actual use: the erection angles of insulators in different positions cannot be adjusted simultaneously or individually around different axes, and the line erection angle cannot be adjusted according to the actual erection requirements and the surrounding environment of the line. Summary of the invention

[0005] The object of the present invention is to provide a high-voltage overhead line power cross arm, aiming to solve the problems existing when using the existing high-voltage overhead line power cross arm.

[0006] To achieve the above object, the present invention provides the following technical solution: a high-voltage overhead line power crossarm, comprising: A high-altitude overhead fixing frame, the high-altitude overhead fixing frame comprises a cross arm, a support rod, a first insulator and a first pin shaft, the support rod is fixedly connected to one end of the first insulator, the first pin shaft is fixedly connected to the other end of the first insulator, the first pin shaft is rotatably connected to the cross arm, and a plurality of third insulators are fixedly connected to the surface of the cross arm; A line-hanging angle adjustment mechanism, the line-hanging angle adjustment mechanism comprises a tube body assembly, a first adjustment part, a transmission part and a line-hanging part, the tube body assembly comprises a square hole tube body and a threaded tube body fixedly connected, the support rod is fixedly connected to the threaded tube body, the first adjustment part comprises a knob and a first threaded rod, one end of the first threaded rod is fixedly connected to the knob, the threaded tube body is threadedly connected to the first threaded rod, the transmission part comprises a rack column, an end cover and a reset spring, one end of the rack column is fixedly connected to the end cover, the rack column is movably connected in the square hole tube body, the other end of the first threaded rod is in contact with the surface of the other end of the rack column, and the reset spring is connected between the square hole tube body and the end cover; The wire-racking part includes a second insulator, a bent rod, a second axial pin and a transmission gear. The second insulator and the second axial pin are respectively fixedly connected to the two ends of the bent rod. The second axial pin is arranged on the surface of the square hole tube body. The transmission gear is fixedly connected to the second axial pin. The rack column is in transmission connection with the transmission gear.

[0007] As a further solution of the present invention, it also includes a second adjusting part, which includes a second threaded rod, a first movable pin, a third threaded rod, a second movable pin and a rotating frame, the two ends of the rotating frame are respectively threadedly connected to the second threaded rod and the third threaded rod, one end of the first movable pin and the second movable pin are respectively fixedly connected to the second threaded rod and the third threaded rod, and the support rod and the cross arm are respectively hinged to the other ends of the first movable pin and the second movable pin.

[0008] As a further solution of the present invention, a plurality of mounting holes are provided on the surface of the cross arm, and the third insulator is fixedly connected in the mounting holes.

[0009] As a further solution of the present invention, the high-altitude overhead fixed frame also includes a fixed support and a first mounting platform, the cross arm is fixedly connected to the fixed support, the fixed support is fixedly connected to the high-voltage frame, and the support rod is fixedly connected to the first mounting platform.

[0010] As a further solution of the present invention, the tube body assembly also includes a second mounting platform and a bracket, the bent rod is fixedly connected to the second mounting platform, the square hole tube body is fixedly connected to the bracket, the first mounting platform is fixedly connected to the second mounting platform, and the second axle pin is rotatably connected to the bracket.

[0011] As a further solution of the present invention, the wiring part further includes a third mounting platform, the bent rod is fixedly connected to the third mounting platform, and the second insulator is fixedly connected to the third mounting platform.

[0012] As a further solution of the present invention, the angle between the support rod and the cross arm is 20 degrees to 75 degrees, and the angle between the bent rod and the square hole tube body is 15 degrees to 120 degrees.

[0013] The beneficial effects of the present invention are as follows: the present application utilizes a structural design in which a high-altitude overhead fixing frame, a line angle adjustment mechanism and a second adjustment part cooperate with each other. On the one hand, the stability of line installation can be improved through the triangular structure formed between the cross arm, the support rod and the second adjustment part. On the other hand, the installation angles of the first insulator and the second insulator can be adjusted simultaneously with the first pin shaft as the axis by rotating the rotating frame and the knob, and the installation angle of the second insulator can be adjusted with the second movable pin as the axis. This facilitates the adjustment of the installation angle according to actual installation requirements and the surrounding environment of the line, and has the characteristics of good stability, easy adjustment and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a three-dimensional diagram of a high-voltage overhead line power cross arm.

[0015] Figure 2 The exploded view of a high-voltage overhead line power cross arm of the present invention.

[0016] Figure 3 It is a three-dimensional diagram of a high-altitude overhead fixing frame according to an embodiment of the present invention.

[0017] Figure 4 It is an exploded view of the cable angle adjustment mechanism according to an embodiment of the present invention.

[0018] Figure 5 It is a cross-sectional view of a wiring angle adjustment mechanism according to an embodiment of the present invention.

[0019] Figure 6 It is a three-dimensional diagram of the second adjustment part of an embodiment of the present invention.

[0020] Figure numerals: 1-high-altitude overhead fixing frame, 11-fixed support, 12-cross arm, 13-support rod, 14-first insulator, 15-first pin shaft, 16-first mounting platform, 17-mounting hole, 2-wire angle adjustment mechanism, 21-tube body assembly, 211-square hole tube body, 212-threaded tube body, 213-second mounting platform, 214-bracket, 22-first adjustment part, 221-knob, 222-first screw Threaded rod, 23-transmission part, 231-rack column, 232-end cover, 233-reset spring, 24-wire rack part, 241-second insulator, 242-bent rod, 243-second shaft pin, 244-transmission gear, 245-third mounting platform, 3-third insulator, 4-second adjustment part, 41-second threaded rod, 411-first movable pin, 42-third threaded rod, 421-second movable pin, 43-rotating frame. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0023] See also Figures 1 to 5 , in one embodiment of the present invention, comprising: A high-altitude overhead fixing frame 1, the high-altitude overhead fixing frame 1 comprises a cross arm 12, a support rod 13, a first insulator 14 and a first pin 15, the support rod 13 is fixedly connected to one end of the first insulator 14, the first pin 15 is fixedly connected to the other end of the first insulator 14, the first pin 15 is rotatably connected to the cross arm 12, and a plurality of third insulators 3 are fixedly connected to the surface of the cross arm 12; The line-hanging angle adjustment mechanism 2 comprises a tube body assembly 21, a first adjustment part 22, a transmission part 23 and a line-hanging part 24. The tube body assembly 21 comprises a square hole tube body 211 and a threaded tube body 212 fixedly connected. The support rod 13 is fixedly connected to the threaded tube body 212. The first adjustment part 22 comprises a knob 221 and a first threaded rod 222. One end of the first threaded rod 222 is fixedly connected with the knob 221. The threaded tube body 212 is threadedly connected with the first threaded rod 222. The transmission part 23 comprises a rack column 231, an end cover 232 and a reset spring 233. One end of the rack column 23 is fixedly connected with the end cover 232. The rack column 23 is movably connected in the square hole tube body 211. The other end of the first threaded rod 222 contacts the surface of the other end of the rack column 23. The reset spring 233 is connected between the square hole tube body 211 and the end cover 232. The wire-racking part 24 includes a second insulator 241, a bent rod 242, a second axial pin 243 and a transmission gear 244. The second insulator 241 and the second axial pin 243 are respectively fixedly connected to the two ends of the bent rod 242. The second axial pin 243 is arranged on the surface of the square hole tube body 21. The transmission gear 244 is fixedly connected to the second axial pin 243. The rack column 23 is in transmission connection with the transmission gear 244.

[0024] Furthermore, a plurality of mounting holes 17 are provided on the surface of the cross arm 12 , and the third insulator 3 is fixedly connected in the mounting holes 17 .

[0025] Furthermore, the high-altitude overhead fixed frame 1 also includes a fixed support 11 and a first mounting platform 16 , the cross arm 12 is fixedly connected to the fixed support 11 , the fixed support 11 is fixedly connected to the high-voltage frame, and the support rod 13 is fixedly connected to the first mounting platform 16 .

[0026] Furthermore, the tube body assembly 21 also includes a second mounting platform 213 and a bracket 214, the bent rod 242 is fixedly connected to the second mounting platform 213, the square hole tube body 211 is fixedly connected to the bracket 214, the first mounting platform 16 is fixedly connected to the second mounting platform 213, and the second axle pin 243 is rotatably connected to the bracket 214.

[0027] Furthermore, the wiring part 24 further includes a third mounting platform 245 , the bent rod 242 is fixedly connected to the third mounting platform 245 , and the second insulator 241 is fixedly connected to the third mounting platform 245 .

[0028] In the embodiment of the present invention, the first insulator 14, the second insulator 241 and the third insulator 3 are used to install the line. The knob 221 is turned by a tool or by hand, and the first threaded rod 222 and the threaded tube body 212 are threadedly connected to drive the first threaded rod 222 to move. The moving first threaded rod 222 controls the transmission gear 244 and the bent rod 242 to rotate at a certain angle by squeezing the rack column 231 and stops. At this time, the installation angle of the second insulator 241 or the line can be adjusted with the second movable pin 421 as the axis.

[0029] See also Figure 1 and Figure 6 In one embodiment of the present invention, it also includes a second adjusting part 4, which includes a second threaded rod 41, a first movable pin 411, a third threaded rod 42, a second movable pin 421 and a rotating frame 43, and the two ends of the rotating frame 43 are respectively threadedly connected to the second threaded rod 41 and the third threaded rod 42, one end of the first movable pin 411 and the second movable pin 421 are respectively fixedly connected to the second threaded rod 41 and the third threaded rod 42, and the support rod 13 and the cross arm 12 are respectively hinged to the other ends of the first movable pin 411 and the second movable pin 421.

[0030] See also Figure 1 Furthermore, the angle between the support rod 13 and the cross arm 12 is 20 degrees to 75 degrees, and the angle between the bent rod 242 and the square hole tube body 211 is 15 degrees to 120 degrees.

[0031] In the embodiment of the present invention, the rotating frame 43 is rotated by tools or by hand, and the support rod 13 is driven to rotate to a certain angle and stop by utilizing the threaded connection between the second threaded rod 41 and the third threaded rod 42 and the rotating frame 43. The installation angles of the first insulator 14 and the second insulator 241 can be adjusted simultaneously with the first pin shaft 15 as the axis. In addition, the triangular structure formed between the cross arm 12, the support rod 13 and the second adjustment part 4 phases improves the stability of the line installation.

[0032] Working principle: During assembly, first connect one end of the support rod 13 to the cross arm 12 through the first pin shaft 15, then hinge the second threaded rod 41 and the third threaded rod 42 to the support rod 13 and the cross arm 12 through the first movable pin 411 and the second movable pin 421, respectively, then fix the second mounting platform 213 to the first mounting platform 16, and finally fix the fixed support 11 to the high-voltage frame; When it is necessary to adjust the installation angles of the first insulator 14 and the second insulator 241 at the same time with the first pin shaft 15 as the axis, use a tool or hand to rotate the rotating frame 43, and use the threaded connection between the second threaded rod 41 and the third threaded rod 42 and the rotating frame 43 to drive the support rod 13 to rotate a certain angle and stop; When continuing to adjust the installation angle of the second insulator 241 with the second movable pin 421 as the axis, use a tool or turn the knob 221 by hand, and utilize the threaded connection between the first threaded rod 222 and the threaded tube body 212 to drive the first threaded rod 222 to move. The moving first threaded rod 222 controls the transmission gear 244 and the bent rod 242 to rotate at a certain angle by squeezing the rack column 231 and stop.

[0033] In summary, the present application utilizes a structural design in which a high-altitude overhead fixing frame 1, a line angle adjustment mechanism 2 and a second adjustment part 4 cooperate with each other. On the one hand, the stability of the line installation can be improved through the triangular structure formed between the cross arm 12, the support rod 13 and the second adjustment part 4. On the other hand, the installation angles of the first insulator 14 and the second insulator 241 can be adjusted simultaneously with the first pin shaft 15 as the axis by rotating the rotating frame 43 and the knob 221, and the installation angle of the second insulator 241 can be adjusted with the second movable pin 421 as the axis. This facilitates the adjustment of the installation angle according to actual installation requirements and the surrounding environment of the line, and has the characteristics of good stability, easy adjustment and strong practicality.

[0034] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the subject matter of the invention. These embodiments and their variations are included in the scope and subject matter of the invention, and are included in the invention described in the claims and the scope of their equivalents.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high voltage overhead line power cross arm, characterized in that: include: A high-altitude overhead fixed frame (1), the high-altitude overhead fixed frame (1) comprising a cross arm (12), a support rod (13), a first insulator (14) and a first pin shaft (15), the support rod (13) and one end of the first insulator (14) are fixedly connected, the first pin shaft (15) and the other end of the first insulator (14) are fixedly connected, the first pin shaft (15) and the cross arm (12) are rotatably connected, and a plurality of third insulators (3) are fixedly connected to the surface of the cross arm (12); A line-hanging angle adjustment mechanism (2), the line-hanging angle adjustment mechanism (2) comprising a tube body assembly (21), a first adjustment portion (22), a transmission portion (23) and a line-hanging portion (24), the tube body assembly (21) comprising a square hole tube body (211) and a threaded tube body (212) fixedly connected, the support rod (13) being fixedly connected to the threaded tube body (212), the first adjustment portion (22) comprising a knob (221) and a first threaded rod (222), one end of the first threaded rod (222) being fixedly connected to the knob (221) , the threaded tube body (212) is threadedly connected to the first threaded rod (222), the transmission part (23) comprises a rack column (231), an end cover (232) and a return spring (233), one end of the rack column (23) is fixedly connected to the end cover (232), the rack column (23) is movably connected in the square hole tube body (211), the other end of the first threaded rod (222) is in contact with the surface of the other end of the rack column (23), and the return spring (233) is connected between the square hole tube body (211) and the end cover (232); The wire-hanging part (24) comprises a second insulator (241), a bent rod (242), a second shaft pin (243) and a transmission gear (244); the second insulator (241) and the second shaft pin (243) are respectively fixedly connected to two ends of the bent rod (242); the second shaft pin (243) is arranged on the surface of the square hole tube body (21); the transmission gear (244) is fixedly connected to the second shaft pin (243); and the rack column (23) is transmission-connected to the transmission gear (244).

2. A high-voltage overhead line power cross arm according to claim 1, characterized in that: The invention also comprises a second adjusting part (4), wherein the second adjusting part (4) comprises a second threaded rod (41), a first movable pin (411), a third threaded rod (42), a second movable pin (421) and a rotating frame (43), wherein two ends of the rotating frame (43) are respectively threadedly connected to the second threaded rod (41) and the third threaded rod (42), one end of the first movable pin (411) and the second movable pin (421) are respectively fixedly connected to the second threaded rod (41) and the third threaded rod (42), and the support rod (13) and the cross arm (12) are respectively hinged to the other ends of the first movable pin (411) and the second movable pin (421).

3. A high-voltage overhead line power cross arm according to claim 2, characterized in that: A plurality of mounting holes (17) are provided on the surface of the cross arm (12), and the third insulator (3) is fixedly connected in the mounting holes (17).

4. A high-voltage overhead line power cross arm according to claim 3, characterized in that: The high-altitude overhead fixed frame (1) also includes a fixed support (11) and a first mounting platform (16), the cross arm (12) is fixedly connected to the fixed support (11), the fixed support (11) is fixedly connected to the high-voltage frame, and the support rod (13) is fixedly connected to the first mounting platform (16).

5. A high-voltage overhead line power cross arm according to claim 4, characterized in that: The tube body assembly (21) further comprises a second mounting platform (213) and a bracket (214); the bent rod (242) is fixedly connected to the second mounting platform (213); the square hole tube body (211) is fixedly connected to the bracket (214); the first mounting platform (16) is fixedly connected to the second mounting platform (213); and the second shaft pin (243) is rotatably connected to the bracket (214).

6. A high-voltage overhead line power cross arm according to claim 5, characterized in that: The wire-hanging part (24) further comprises a third mounting platform (245), the bent rod (242) is fixedly connected to the third mounting platform (245), and the second insulator (241) is fixedly connected to the third mounting platform (245).

7. A high-voltage overhead line power cross arm according to claim 1, characterized in that: The included angle between the support rod (13) and the cross arm (12) is 20 degrees to 75 degrees, and the included angle between the bent rod (242) and the square hole tube body (211) is 15 degrees to 120 degrees.

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