Insulation operation rod for electric power overhaul operation

Abstract

The invention relates to the technical field of operation rods for electric power overhaul, in particular to an insulating operation rod for electric power overhaul operation, which comprises a rod body assembly consisting of a rod handle and a rod head, a rainproof cover arranged on the rod body assembly, a joint mechanism and a power supply mechanism, comprising a connecting rod which is arranged at the top of a rod head and has a hollow structure, a movable rod which is arranged in the hollow structure on the connecting rod, and a clamping block and a clamping groove which are arranged on the movable rod, are used for stably connecting a high-voltage isolating switch or a switch of a circuit breaker at the top end of a rod body assembly and are matched for use; the limiting mechanism is arranged at an opening in the top of the rod head and used for conveniently mounting and dismounting the connector mechanism; the ejector rod assembly is arranged in the rod head and used for lifting the movable rod in the vertical direction. According to the embodiment of the invention, the insulation operation rod is stably connected with the switch-on and switch-off device, the hand is prevented from shaking during operation, and the switch-on and switch-off operation of the high-voltage isolation switch or the circuit breaker is ensured to be accurate.

Description

Technical Field

[0001] The invention relates to the technical field of working poles for electric power maintenance, and in particular to an insulating working pole for electric power maintenance work. Background Art

[0002] Insulated working rod is a unified name for insulating tools used in power systems, which can be used for live working, live maintenance and live maintenance tools. Insulated working rod is an insulating tool used to operate live equipment for a short time, such as connecting or disconnecting high-voltage disconnectors, drop fuses, etc.

[0003] Currently, when operating a high-voltage disconnector or circuit breaker on a cable line, if the hand shakes during the operation, the closing and opening position of the high-voltage disconnector or circuit breaker may not be found correctly. In addition, the length of the insulating working rod causes the operation of the insulating working rod to be unstable, making the closing and opening operation inaccurate, affecting the accuracy and efficiency of the operation.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0005] The object of the present invention is to solve the above-mentioned deficiencies and provide an insulating working rod for power maintenance work.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solution: an insulating working pole for power maintenance work, comprising a pole body assembly consisting of a pole handle and a pole head, a rain cover arranged on the pole body assembly, and also comprising:

[0007] The joint mechanism comprises a connecting rod with a hollow structure arranged at the top of the rod head, a movable rod arranged in the hollow structure on the connecting rod, and a clamping block and a clamping groove arranged on the movable rod for stably connecting the high-voltage disconnector or the circuit breaker at the top of the rod body assembly and used in conjunction with each other;

[0008] A limiting mechanism is arranged at the top opening of the rod head and is used for convenient installation and removal of the joint mechanism;

[0009] The top rod assembly is arranged inside the rod head and is used for lifting and lowering the movable rod in the vertical direction.

[0010] Furthermore, the joint mechanism also includes an arc plate fixed by a spring on two separated surfaces of the clamping groove, an external thread is provided on the connecting rod, and a connecting plate fixed by a spring is provided on the movable rod.

[0011] Furthermore, the limiting mechanism includes two connecting rods 1 relatively arranged at the opening on the top of the rod head, and a connecting rod 2 rotatably arranged at one end of the connecting rod 1, a telescopic support rod is provided at the inner angle between the connecting rod 1 and the connecting rod 2, a guide wheel abutting the outer surface of the connecting rod is provided on the other end of the connecting rod 1, a pin shaft sleeved by a torsion spring is provided on the connecting rod 1 at the connecting position of the rod head, and an arc plate 2 in contact with the upper surface of the arc plate 1 is provided on the end of the connecting rod 2 away from the connecting rod 1.

[0012] Furthermore, the push rod assembly includes a push rod arranged inside the rod head and abutting the bottom end of the movable rod, a screw rod arranged at the lower support end of the push rod, a limiting plate is arranged on the top of the screw rod, a circumferential surface of the limiting plate is evenly provided with a plurality of guide rods 1 for sliding connection, a circumferential surface of the push rod is evenly provided with a plurality of guide rods 2 for guiding connection inside the rod head, and a linkage assembly for providing driving force is arranged at the lower end extension of the screw rod.

[0013] Furthermore, the linkage assembly includes a gear ring arranged at a place on the rod head and a connecting ring 1 arranged on the circumferential surface of the gear ring. Gear 1, gear 2, and gear 3 are meshingly arranged inside the gear ring and meshingly connected in the same horizontal plane. The central axis of gear 1 is provided with a motor fixed to a support plate, and the central axis of gear 2 is fixed to the screw rod.

[0014] Furthermore, the rain cover is evenly provided with a plurality of diversion holes for obliquely draining rainwater, a support ring is provided inside the rain cover, a connecting ring three is provided on the lower side of the support ring, a plurality of pins are evenly provided on the bottom surface of the support ring, and the supporting surface of the connecting ring three is provided with two symmetrically distributed limit grooves.

[0015] Furthermore, a connecting mechanism is provided at the position where the rod handle and the rod head are connected, and the connecting mechanism includes a connecting ring 2 assembled and fixed with the rain cover, a fixing ring arranged inside the connecting ring 2 and movably connected using a bearing, and the upper and lower ends of the fixing ring are respectively provided with external threads 2 and 3, and the inner surface of the connecting ring 2 is symmetrically provided with two positioning blocks used in conjunction with the limit groove.

[0016] Furthermore, the upper and lower openings of the rod head are respectively provided with internal threads 2 and 3.

[0017] Furthermore, the upper end of the rod handle is provided with an internal thread one for use with the external thread three, and the lower end of the rod handle is provided with an insulating handle sleeve.

[0018] Furthermore, the outer support portion of the connecting ring 1 is evenly provided with a plurality of pin holes for use with the latch pin.

[0019] Compared with the prior art, the present invention has the following beneficial effects: the present invention can limit the present embodiment to the closing and opening of high-voltage disconnectors or circuit breakers through the provided joint mechanism, so that the insulating working rod of the present embodiment and the closing and opening of the switch are stably connected, thus preventing the shaking of the hands during operation and ensuring the accurate closing and opening of the high-voltage disconnectors or circuit breakers; and through the limiting mechanism provided on the rod head, not only can the joint mechanism with an opening on the top of the rod head be stably assembled to ensure the accuracy of the operation of the joint mechanism, but also the joint mechanism can be conveniently installed, disassembled and replaced, and the operation is simple; and through the provided top rod assembly, linkage assembly and rain cover, the driving force generated by the linkage assembly can be used to adjust the joint mechanism. On the one hand, the structure can clamp the closing and pulling of the switch for stability, and on the other hand, it can drive the rain cover to rotate outside the pole body assembly to generate centrifugal force, driving rainwater dripping on the outer surface of the rain cover to "fly out", effectively avoiding rainwater accumulation on the surface of the rain cover when the insulating working pole of this embodiment is used outdoors on rainy days, reducing the possibility of moisture on the surface of the insulating working pole, and ensuring the insulation performance of the insulating working pole of this embodiment; finally, through the connection mechanism used in conjunction with the rain cover, not only can the rain cover be conveniently replaced and installed, but also the electrical components inside the pole body assembly such as the motor can be regularly maintained after separation. In addition, the long-specification pole handle can be replaced, and the insulating working pole of this embodiment can be applied in other scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 A three-dimensional structural diagram of an overall perspective of an embodiment of the present invention;

[0022] Figure 2 An overall exploded view of an embodiment of the present invention;

[0023] Figure 3 A partial front cross-sectional three-dimensional structural diagram of an embodiment of the present invention;

[0024] Figure 4 for Figure 3 The structure diagram at A is enlarged;

[0025] Figure 5 for Figure 3 The structure diagram at B is enlarged;

[0026] Figure 6 A front cross-sectional perspective structural diagram of a joint mechanism according to an embodiment of the present invention;

[0027] Figure 7 is a three-dimensional structural diagram of a front cross-section of a club head according to an embodiment of the present invention;

[0028] Figure 8 A three-dimensional structural diagram of a rain cover according to an embodiment of the present invention from one viewing angle;

[0029] Fig. 9 A front cross-sectional perspective structural diagram of a rain shield according to an embodiment of the present invention;

[0030] Fig.10 A three-dimensional structural diagram of a connection mechanism according to an embodiment of the present invention from one viewing angle;

[0031] Fig.11 A front cross-sectional three-dimensional structural diagram of a connecting mechanism according to an embodiment of the present invention;

[0032] Fig.12 The figure is a three-dimensional structural diagram of a front cross-section of a handle according to an embodiment of the present invention.

[0033] In the figure: 1, rod handle; 11, internal thread 1; 12, insulating handle sleeve; 2, rod head; 21, internal thread 2; 22, internal thread 3; 3, rain cover; 31, guide hole; 4, joint mechanism; 41, connecting rod; 42, movable rod; 43, clamping block; 44, clamping groove; 45, spring 1; 451, arc plate 1; 46, external thread 1; 47, connecting plate; 471, spring 2; 5, limit mechanism; 51, connecting rod 1; 52, connecting rod 2; 53, telescopic support rod; 54, guide wheel; 55, pin shaft; 56, arc plate 2; 6, top rod Assembly; 61, push rod; 62, screw rod; 63, limit plate; 64, guide rod one; 65, guide rod two; 7, linkage assembly; 71, gear ring; 72, connecting ring one; 721, pin hole; 73, gear one; 731, motor; 74, gear two; 75, gear three; 76, support plate; 8, connecting mechanism; 81, connecting ring two; 82, fixing ring; 821, external thread two; 822, external thread three; 83, bearing; 84, positioning block; 91, support ring; 92, connecting ring three; 93, latch; 94, limit groove. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] like Figure 1-12 As shown, the present invention is an insulating working pole for power maintenance work, comprising a pole body assembly consisting of a pole handle 1 and a pole head 2, a rain cover 3 arranged on the pole body assembly, and further comprising:

[0038] The joint mechanism 4 comprises a connecting rod 41 with a hollow structure arranged at the top of the rod head 2, a movable rod 42 arranged in the hollow structure on the connecting rod 41, and a clamping block 43 and a clamping groove 44 arranged on the movable rod 42 for stably connecting the high-voltage disconnector or the circuit breaker at the top of the rod body assembly and used in conjunction with each other;

[0039] A limiting mechanism 5 is arranged at the top opening of the rod head 2 and is used for convenient installation and removal of the joint mechanism 4;

[0040] The top rod assembly 6 is arranged inside the rod head 2 and is used to lift the movable rod 42 in the vertical direction. With this design, through the joint mechanism 4 designed at the top of the rod head 2 and the limit mechanism 5 that cooperates with the joint mechanism 4 for installation, disassembly and replacement, the insulating working rod of this embodiment can be stably connected with the switch opening and closing, preventing the shaking of the hand during operation, ensuring the accurate operation of the high-voltage disconnector or circuit breaker, and at the same time, the joint mechanism 4 can be conveniently installed, disassembled and replaced. When the outside of the joint mechanism 4 is regularly checked, once the outer surface is found to be rusted, it can be replaced promptly and quickly;

[0041] Through the push rod assembly 6 designed inside the rod head 2, the movable rod 42 can be driven to rise and fall in the vertical direction under the drive of external force, thereby realizing the closure of the clamp block 43 and the clamp groove 44, so that the opening and closing of the switch is limited between the clamp block 43 and the clamp groove 44, ensuring the accuracy of the opening and closing operation of the high-voltage disconnector or circuit breaker.

[0042] It should be noted that the handle 1 is provided with a plurality of length specifications to be applicable to a variety of scenarios and has universal applicability.

[0043] It should be noted that the connecting rod 41 has a hollow structure supported by an upper groove and a lower opening, and the movable rod 42 is guided to rise and fall in the hollow structure of the connecting rod 41. The top of the movable rod 42 is welded and fixed to the clamping block 43, and the clamping groove 44 is formed as follows. Figure 6 As shown in the structure, the lower end plane of the clamping groove 44 is movably mounted on the rod portion of the movable rod 42, so that the clamping block 43 welded on the top end of the movable rod 42 can be opened and closed in the inner space of the clamping groove 44.

[0044] In one embodiment, the joint mechanism 4 further comprises an arc plate 451 fixed by a spring 45 disposed on two mutually separated surfaces of the clamping groove 44, an external thread 46 is disposed on the connecting rod 41, and a connecting plate 47 fixed by a spring 471 is disposed on the movable rod 42. With this design, the spring 45 welded and fixed in the through openings opened by turning on the two mutually separated surfaces of the clamping groove 44, and the arc plate 451 welded on the upper end of the spring 45, can cooperate with the arc plate 56 included in the limiting mechanism 5 to stably assemble the joint mechanism 4 at the top of the rod head 2 for use;

[0045] Through the connection plate 47 welded externally on the movable rod 42, and the two springs 471 symmetrically welded on the lower surface of the connection plate 47 and welded in the groove at the upper end of the connecting rod 41, when the movable rod 42 moves upward, the connection plate 47 welded with the springs 471 can provide a pulling support force. Once the external force is lost, the elasticity of the connection plate 47 automatically restores to the initial state, so that the clamping block 43 and the clamping groove 44 are in an open state, separating or limiting the pulling and closing of the switch, and the operation is simple.

[0046] In one embodiment, the limiting mechanism 5 comprises two connecting rods 1 51 relatively arranged at the top opening of the rod head 2, and a connecting rod 2 52 rotatably arranged at one end of the connecting rod 1 51, a telescopic support rod 53 is arranged at the inner angle between the connecting rod 1 51 and the connecting rod 2 52, a pin 55 sleeved with a torsion spring is arranged at the connection position of the connecting rod 1 51 at the rod head 2, and an arc plate 2 56 in contact with the upper surface of the arc plate 1 451 is arranged at one end of the connecting rod 2 away from the connecting rod 1 51. In this design, the two connecting rods 1 51 are connected by the pin 55 sleeved with a torsion spring in the relatively turned opening on the rod head 2, and the connecting rod 2 52 is connected at one end of the connecting rod 1 51 through a rotating shaft, and the telescopic support rod 53 is rotatably connected at the inner angle between the connecting rod 1 51 and the connecting rod 2 52, so that the angle between the connecting rod 1 51 and the connecting rod 2 52 is changed, which plays an auxiliary effect on the fixation of the arc plate 2 56 welded at the top of the connecting rod 2 52 in the corresponding groove;

[0047] Preferably, the other end of the connecting rod 51 is provided with a guide wheel 54 that abuts against the outer surface of the connecting rod 41. With this design, the guide wheel 54 connected to the end of the connecting rod 51 and the rolling surface of the guide wheel 54 facilitate the movement and rotation of the connecting rod 41 in the top opening of the rod head 2, which provides convenience for subsequent installation and removal.

[0048] It should be noted that the guide wheel 54 adopts a spherical structure.

[0049] In one embodiment, the push rod assembly 6 includes a push rod 61 disposed inside the rod head 2 and abutting against the bottom end of the movable rod 42, and a screw rod 62 disposed at the lower support end of the push rod 61. The circumference of the push rod 61 is evenly provided with a plurality of guide rods 65 for guiding and connecting inside the rod head 2, and the lower end extension of the screw rod 62 is provided with a linkage assembly 7 for providing driving force. In this design, by using a plurality of guide rods 65 evenly welded on the circumference inside the rod head 2, it is possible to ensure that the push rod 61 moves along the center line inside the rod head 2;

[0050] Furthermore, by means of the screw rod 62 which is threadedly connected to the support end at the lower side of the push rod 61 , the push rod 61 which is threadedly connected thereto can be driven to move vertically under the guide limit of the guide rod 2 65 by the rotation of the screw rod 62 .

[0051] Preferably, a limit plate 63 is provided on the top of the screw rod 62, and a plurality of guide rods 64 are evenly provided on the circumference of the limit plate 63. With this design, the limit plate 63 welded on the top of the screw rod 62 and the guide rod 64 connected in the slide groove formed by turning on the circumference of the limit plate 63 can realize the function of guiding and limiting, and ensure that the top rod 61 can complete the vertical lifting operation under the drive of the screw rod 62.

[0052] In one embodiment, the linkage assembly 7 includes a toothed ring 71 disposed at a place of the rod head 2, a connecting ring 1 72 disposed on the circumference of the toothed ring 71, and a gear 1 73, a gear 2 74, and a gear 3 75 meshingly disposed in the toothed ring 71 on the same horizontal plane, and the central axis of the gear 2 74 is fixedly disposed with the screw rod 62. With this design, the transmission of power or motion is achieved through the connecting ring 1 72 slidingly limited in the slide groove machined on the rod head 2, and the toothed ring 71 welded on the inner ring of the connecting ring 1 72, and through the gears 1 73, gear 2 74, and gear 3 75 meshingly connected in the toothed ring 71.

[0053] Preferably, the central axis of the gear 1 73 is provided with a motor 731 fixed to a support plate 76. With this design, by starting the motor 731 connected to the coupling at the lower end of the central axis of the gear 1 73, the power generated can be transmitted to the gear ring 71 and the gear 2 74 through the gear 1 73 for power or motion transmission, and the symmetrical design of the gear 3 75 can ensure the balanced effect of the meshing transmission.

[0054] It should be noted that the central axis of the gear 2 74 and the bottom end of the screw rod 62 are fixed by means including but not limited to welding.

[0055] In one embodiment, a support ring 91 is provided inside the rain cover 3, a connecting ring 3 92 is provided on the lower side of the support ring 91, a plurality of latches 93 are evenly provided on the bottom surface of the support ring 91, and two symmetrically distributed limiting grooves 94 are provided on the supporting surface of the connecting ring 3 92. With this design, the support ring 91 integrally formed on the upper part of the rain cover 3 and the connecting ring 3 92 with a gap integrally formed on the lower end of the support ring 91 can not only closely adhere to the outer wall of the rod assembly, but also conveniently separate the rain cover 3 from the outer wall of the rod assembly;

[0056] Furthermore, several evenly distributed latches 93 are welded on the protruding surface of the lower end of the support ring 91 and on the connecting ring 3 92. Fig. 9 The two symmetrical limiting grooves 94 machined by turning as shown can provide operational feasibility in the assembly of the connecting ring 72 and the connecting mechanism 8.

[0057] It should be noted that the inner surface of the support ring 91 is smooth and closely attached to the outer wall of the rod assembly.

[0058] It should be noted that the support ring 91 and the connecting ring 3 92 are integrally formed. Fig. 9 As shown, the structure can be closely attached to the outer wall of the rod body assembly, preventing the charged rainwater on the upper part from sliding along the outer wall of the rod body assembly to the hand-gripping end of the rod handle 1, thereby ensuring the insulation performance and operational safety.

[0059] Preferably, the rain cover 3 is evenly provided with a plurality of diversion holes 31 for diverting rainwater. Figure 8 , Fig. 9 As shown, a plurality of guide holes 31 are opened through the upper inclined surface of the rain cover 3, so that part of the rainwater can be discharged through the inner hole of the guide hole 31, thereby reducing the possibility of accumulation.

[0060] In one embodiment, a connection mechanism 8 is provided at the position where the rod handle 1 and the rod head 2 are connected, and the connection mechanism 8 includes a second connection ring 81 assembled and fixed with the rain cover 3, and a fixing ring 82 disposed inside the second connection ring 81 and movably connected using a bearing 83. In this way, by designing the connection mechanism 8 at the position where the rod handle 1 and the rod head 2 are connected, and the fixing ring 82 rotatably connected to the inner side of the second connection ring 81 included in the connection mechanism 8 using a bearing 83, when the fixing ring 82 is fixed, the second connection ring 81 connected by the bearing 83 can perform rotational movement without being affected by the fixing of the fixing ring 82.

[0061] Preferably, the upper and lower ends of the fixing ring 82 are respectively provided with external threads 821 and 822, and the inner surface of the connecting ring 81 is symmetrically provided with two positioning blocks 84 used in conjunction with the limiting groove 94. With this design, the external threads 821 and 822 machined on the upper and lower outer surfaces of the fixing ring 82 and the two positioning blocks 84 welded on the inner surface of the connecting ring 81 can play a supporting and fixing role in the connection between the handle 1 and the rod head 2, and the positioning blocks 84 and the limiting groove 94 can be used in conjunction to fix the rain cover 3 in the connecting ring 81. When the rain cover 3 is rotated by force, the connecting mechanism 8 at this time will not cause motion interference.

[0062] In one embodiment, the upper and lower openings of the rod head 2 are respectively provided with internal threads 21 and 22. In this design, the internal threads 21 and 22 machined on the inner wall of the upper and lower openings of the rod head 2 are threadedly fastened with the external threads 1 46 machined on the outer surface of the connecting rod 41 and the external threads 2 821 machined on the fixing ring 82, thereby achieving connection.

[0063] In one embodiment, the upper end of the handle 1 is provided with an internal thread 11 used in conjunction with the external thread 3 822. In this design, the connection is achieved by threading the internal thread 11 machined on the inner wall of the upper end of the handle 1 and the external thread 3 822 machined on the fixing ring 82 for thread fastening.

[0064] Preferably, the lower end of the rod handle 1 is provided with an insulating handle sleeve 12. With this design, the insulating handle sleeve 12 sleeved at the lower end of the rod handle 1 can isolate the rod body assembly from the electrical conduction of the hand.

[0065] In one embodiment, the outer support portion of the connecting ring 1 72 is evenly provided with a plurality of pin holes 721 used in conjunction with the plug pin 93. With this design, the plurality of through pin holes 721 machined on the connecting ring 1 72 can be plugged in conjunction with the plug pin 93, thereby achieving the fixation of the gear ring 71 and the rain cover 3 included in the linkage assembly 7. When the gear ring 71 is subjected to force transmission, the rain cover 3 plugged in through the pin holes 721 and the plug pin 93 can be driven to rotate, thereby achieving a centrifugal effect, further reducing the possibility of rainwater accumulation, avoiding moisture on the surface of the insulating rod of this embodiment, and ensuring insulation performance.

[0066] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. An insulating working pole for electric power maintenance work, comprising a pole body assembly consisting of a pole handle (1), a pole head (2), and a rain cover (3) arranged on the pole body assembly, characterized in that: Also includes: The joint mechanism (4) comprises a connecting rod (41) provided at the top of the rod head (2) and having a hollow structure, a movable rod (42) provided in the hollow structure on the connecting rod (41), and a clamping block (43) and a clamping groove (44) provided on the movable rod (42) and used in conjunction with the connecting rod (41) for stably connecting the high-voltage disconnector or the circuit breaker at the top of the rod body assembly; A limiting mechanism (5) is arranged at the top opening of the rod head (2) and is used for conveniently installing and removing the joint mechanism (4); A push rod assembly (6) is arranged inside the rod head (2) and is used to lift and lower the movable rod (42) in a vertical direction.

2. The insulating working rod for power maintenance work according to claim 1, characterized in that: The joint mechanism (4) also includes an arc plate (451) fixed by a spring (45) disposed on two separated surfaces of the clamping groove (44), an external thread (46) is disposed on the connecting rod (41), and a connecting plate (47) fixed by a spring (471) is disposed on the movable rod (42).

3. The insulating working rod for power maintenance work according to claim 2, characterized in that: The limiting mechanism (5) comprises two connecting rods (51) relatively arranged at the top opening of the rod head (2), and a connecting rod (52) rotatably arranged at one end of the connecting rod (51); a telescopic support rod (53) is arranged at the inner angle between the connecting rod (51) and the connecting rod (52); a guide wheel (54) abutting against the outer surface of the connecting rod (41) is arranged on the other end of the connecting rod (51); a pin shaft (55) sleeved by a torsion spring is arranged on the connecting rod (51) at the connection position of the rod head (2); and an arc plate (56) in contact with the upper surface of the arc plate (451) is arranged on the end of the connecting rod (52) away from the connecting rod (51).

4. The insulating working rod for power maintenance work according to claim 1, characterized in that: The push rod assembly (6) comprises a push rod (61) arranged inside the rod head (2) and abutting against the bottom end of the movable rod (42), and a screw rod (62) arranged at the lower support end of the push rod (61). A limit plate (63) is arranged on the top of the screw rod (62). A plurality of guide rods (64) for sliding connection are evenly arranged on the circumference of the limit plate (63). A plurality of guide rods (65) for guiding connection inside the rod head (2) are evenly arranged on the circumference of the push rod (61). A linkage assembly (7) for providing driving force is arranged on the lower extension of the screw rod (62).

5. The insulating working rod for power maintenance work according to claim 4, characterized in that: The linkage assembly (7) comprises a toothed ring (71) arranged at a place of the rod head (2), and a connecting ring 1 (72) arranged on the circumference of the toothed ring (71); a gear 1 (73), a gear 2 (74), and a gear 3 (75) meshingly arranged in the toothed ring (71) and meshingly connected on the same horizontal plane; a motor (731) fixed to a support plate (76) is arranged on the central axis of the gear 1 (73); and a central axis of the gear 2 (74) is fixedly arranged on the screw rod (62).

6. The insulating working rod for power maintenance work according to claim 5, characterized in that: The rain cover (3) is evenly provided with a plurality of guide holes (31) for obliquely draining rainwater, the rain cover (3) is provided with a support ring (91) inside, a connecting ring (92) is provided on the lower side of the support ring (91), a plurality of latches (93) are evenly provided on the bottom surface of the support ring (91), and a supporting surface of the connecting ring (92) is provided with two symmetrically distributed limiting grooves (94).

7. The insulating working rod for power maintenance work according to claim 6, characterized in that: A connecting mechanism (8) is provided at the position where the rod handle (1) and the rod head (2) are connected, and the connecting mechanism (8) comprises a second connecting ring (81) assembled and fixed with the rain cover (3), and a fixing ring (82) arranged inside the second connecting ring (81) and movably connected using a bearing (83), and the upper and lower ends of the fixing ring (82) are respectively provided with a second external thread (821) and a third external thread (822), and the inner surface of the second connecting ring (81) is symmetrically provided with two positioning blocks (84) used in conjunction with the limiting groove (94).

8. The insulating working rod for power maintenance work according to claim 1, characterized in that: The upper and lower ends of the rod head (2) are open and are respectively provided with a second internal thread (21) and a third internal thread (22).

9. The insulating working rod for electric power maintenance work according to claim 7, characterized in that: The upper end of the rod handle (1) is provided with an internal thread one (11) for use with the external thread three (822), and the lower end of the rod handle (1) is provided with an insulating handle sleeve (12).

10. The insulating working rod for power maintenance work according to claim 6, characterized in that: The outer support portion of the connecting ring 1 (72) is evenly provided with a plurality of pin holes (721) for use with the latch pin (93).

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