Auxiliary tool for replacing power insulator

Abstract

The utility model discloses an auxiliary tool for replacing an electric power insulator, which belongs to the technical field of insulator installation, and comprises a side bracket I and a side bracket II, the side walls of the side bracket I and the side bracket II are both rotatably connected with at least two ball type positioning mechanisms, and the side wall of the side bracket I is provided with a lifting nut in a limiting manner. A screw located in the first side bracket is arranged in the lifting nut in a matched mode through threads, a sliding rod is slidably connected into the second side bracket, and hanging rings are fixedly connected to the ends of the screw and the sliding rod. According to the utility model, the ball type positioning mechanisms are arranged, the umbrella disc of the insulator can be positioned by using the two ball type positioning mechanisms which are oppositely arranged, and the balls are arranged on the upper side, the lower side and the inner side of each ball type positioning mechanism, so that the positioned insulator can still rotate; therefore, the butt joint direction of the metal end of the insulator can be adjusted conveniently, connection between the metal end of the insulator and the terminal stud can be completed smoothly, and installation and replacement are more flexible and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of insulator installation, in particular to an auxiliary tool for replacing a power insulator. Background Art

[0002] Insulators are electrical equipment mainly used in power systems. Their function is to provide electrical insulation between conductors at different potentials and to withstand certain mechanical stresses, such as wind pressure, ice load, conductor tension, etc., to ensure the safe and stable operation of the power system. The inspection and maintenance standards for insulators mainly focus on surface cracks, breakage, cracking, burns, glaze peeling, and surface discharge marks. If the above defects occur and exceed the safety factor, the load capacity and insulation level of the suspension insulator will be affected, which will cause the suspension point to loosen / break, and the insulator needs to be replaced.

[0003] Among the existing patent documents, there is a patent with a publication number of CN 216121549 U, and the patent name is "an auxiliary tool for replacing insulators". The patent and other existing technologies mainly position the insulators through the limiter and the block in the bracket. After the insulators are positioned, they will be completely fixed. At this time, the insulators cannot perform slight rotation activities. Therefore, in actual installation, the metal end of the insulator and the terminal end will not correspond to each other. Figure 1 As shown, it is very difficult to adjust the direction of the insulator at this time, resulting in poor application flexibility. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an auxiliary tool for replacing an electric insulator. The tool can position the umbrella plate of the insulator by means of two relatively arranged ball-type positioning mechanisms. Since balls are arranged on the upper and lower sides and the inner side of the ball-type positioning mechanism, the insulator can still rotate after being positioned, so as to adjust the docking direction of the metal end of the insulator, thereby smoothly completing the connection between the metal end of the insulator and the wiring end, which is more flexible and convenient during installation and replacement.

[0005] In order to solve the above technical problems, the technical solution of the utility model is implemented as follows:

[0006] An auxiliary tool for replacing a power insulator comprises a side bracket 1 and a side bracket 2, wherein the side bracket 1 and the side bracket 2 are used in parallel with each other;

[0007] Two ball-type positioning mechanisms are rotatably connected on the side walls of the side bracket one and the side bracket two, and the two ball-type positioning mechanisms are respectively located at the upper and lower ends of the side bracket one or the side bracket two, and all the two ball-type positioning mechanisms are distributed in a linear array along the length direction of the side bracket one or the side bracket two. A lifting nut is installed at the upper limit of the side wall of the side bracket one, and a screw rod located inside the side bracket one and capable of vertical lifting is threadedly matched in the lifting nut. A sliding rod capable of vertical lifting is slidably connected inside the side bracket two, and the ends of the screw rod and the sliding rod are fixedly connected with hanging rings;

[0008] The ball-type positioning mechanism comprises a reference rotary seat, an L-shaped positioning frame is fixedly connected to the reference rotary seat, the bending part of the L-shaped positioning frame is a rounded frame, and a protruding and rolling ball is installed in the rounded frame;

[0009] The power insulator replacement auxiliary tool is used for vertical installation of the insulator, and the ball-type positioning mechanism is used to fix the umbrella plate of the insulator, so as to facilitate the subsequent connection of the metal end of the insulator with the wiring end of the wire.

[0010] By adopting the above scheme, the tool is equipped with a ball-type positioning mechanism, and the umbrella plate of the insulator can be positioned by using two ball-type positioning mechanisms arranged opposite to each other. Since balls are arranged on the upper and lower sides and the inner side of the ball-type positioning mechanism, the insulator can still rotate after being positioned, so as to adjust the docking direction of the metal end of the insulator, thereby smoothly completing the connection between the metal end of the insulator and the wiring end, which will be more flexible and convenient during installation and replacement.

[0011] As a preferred embodiment of a power insulator replacement auxiliary tool, a circular array of balls is distributed on the upper and lower surfaces and side surfaces of the rounded frame.

[0012] By adopting the above solution, in order to reduce the friction force of the insulator when rotating, balls are arranged on the upper and lower surfaces and the side surfaces of the rounded frame, wherein the inner side wall of the rounded frame is just clamped on the umbrella plate of the insulator.

[0013] As a preferred embodiment of an auxiliary tool for replacing a power insulator, the reference rotary seat is rotatably connected to an annular groove fixed on side bracket one or side bracket two, and the reference rotary seat can rotate horizontally along the annular groove, and its rotation angle is 0-360°.

[0014] By adopting the above solution, in order to improve the flexibility of the ball-type positioning mechanism when in use, a reference rotating seat is provided to enable the mechanism to rotate, so as to facilitate the installation or removal of the tool from the insulator.

[0015] As a preferred embodiment of an auxiliary tool for replacing power insulators, the end of the L-shaped positioning frame is fixedly connected with a docking bolt, and the frame body of the L-shaped positioning frame is also provided with a docking groove for use with the docking bolt. The docking bolt can be inserted into the docking groove, and a fastening nut is installed on the docking bolt through threaded cooperation; wherein the fastening nut is a butterfly head nut.

[0016] By adopting the above scheme, in order to realize the positioning of the insulator, the reference rotating seats on the same horizontal plane are rotated at two locations until the two docking bolts are respectively inserted into each other's docking grooves, and then they are locked by tightening the nuts, so that the two ball-type positioning mechanisms can be locked, thereby realizing the positioning of the insulator.

[0017] As a preferred embodiment of an auxiliary tool for replacing power insulators, a side limit cavity is also provided on the side wall of the side bracket, the lifting nut is limited in the side limit cavity, and half of the lifting nut is exposed outside the side limit cavity; wherein, a plurality of circular arrays of middle longitudinal anti-slip grooves are provided on the outer side wall of the side limit cavity.

[0018] By adopting the above scheme, in order to realize the lifting and lowering of the insulator, the lifting nut is rotated. Since the lifting nut is limited in the side limit cavity, the screw rod will be driven to rise and fall under the action of the thread to adjust the position of the insulator, thereby facilitating the connection between the metal end of the insulator and the wiring terminal.

[0019] As a preferred implementation of an auxiliary tool for replacing a power insulator, the outer side of the hanging ring is also wrapped with an anti-slip insulating layer, and the anti-slip insulating layer is made of materials such as insulating rubber.

[0020] In order to improve the anti-skid effect of the hanging ring, the anti-skid insulating layer is wrapped on the outer side of the hanging ring to improve the stability during hanging.

[0021] As a preferred embodiment of the auxiliary tool for replacing a power insulator, a damper is provided between the outer side wall of the slide rod and the inner side wall of the second side bracket.

[0022] In order to prevent the second side bracket from sliding down due to its own gravity by adopting the above solution, damping is provided on the side walls of the two brackets to increase the sliding friction.

[0023] After adopting the above technical solution, the beneficial effects of the utility model are:

[0024] 1. The tool is provided with a ball-type positioning mechanism. The two relatively arranged ball-type positioning mechanisms can be used to position the umbrella plate of the insulator. Since balls are arranged on the upper, lower and inner sides of the ball-type positioning mechanism, the positioned insulator can still rotate on its own to adjust the docking direction of the metal end of the insulator, thereby smoothly completing the connection between the metal end of the insulator and the wiring end, which is more flexible and convenient during installation and replacement.

[0025] 2. In order to achieve the positioning of the insulator, by rotating the two reference rotating seats on the same horizontal plane until the two docking bolts are respectively inserted into each other's docking grooves, and then locking them by tightening the nuts, the two ball-type positioning mechanisms can be locked, thereby achieving the positioning of the insulator.

[0026] 3. In order to achieve the lifting and lowering of the insulator, the lifting nut is rotated. Since the lifting nut is limited in the side limit cavity, the screw rod will be driven to rise and fall under the action of the thread to adjust the position of the insulator, thereby facilitating the connection between the metal end of the insulator and the wiring terminal.

[0027] 4. In order to improve the anti-slip effect of the hanging ring, an anti-slip insulation layer is wrapped on the outside of the hanging ring to improve stability during hanging.

[0028] 5. In order to prevent the second side bracket from sliding down due to its own gravity, damping is provided on the side walls of the two to increase the sliding friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 It is a three-dimensional structural diagram of the background technology when the metal end of the insulator and the wiring end do not correspond to each other;

[0031] Figure 2 This is a three-dimensional structural diagram of the insulator metal end connected to the wiring end using the utility model in the embodiment;

[0032] Figure 3 This is a three-dimensional structural diagram of the insulator installed using the utility model in the embodiment;

[0033] Figure 4 It is a three-dimensional structural diagram of the utility model;

[0034] Figure 5 for Figure 4 A three-dimensional structural diagram of the middle side bracket 1;

[0035] Figure 6 For display Figure 5 An internal cross-sectional view of the location of the middle lifting nut;

[0036] Figure 7 for Figure 6A partial enlarged view of the middle A;

[0037] Figure 8 for Figure 4 A three-dimensional structural diagram of the middle side bracket 2;

[0038] Fig. 9 for Figure 4 The three-dimensional structure diagram of the ball positioning mechanism;

[0039] Fig.10 for Fig. 9 Cross-sectional view of the center edge where the ball is located.

[0040] Markings in the figure: 1-side bracket one; 2-side bracket two; 3-ball-type positioning mechanism; 301-reference rotary seat; 302-L-shaped positioning frame; 303-rounded frame; 304-ball; 305-jointing bolt; 306-jointing groove; 307-fastening nut; 4-lifting nut; 5-screw; 6-slide rod; 7-hanging ring; 8-annular slide groove; 9-side limit cavity; 10-anti-slip insulation layer; 11-insulator; 12-electric wire; 13-wiring terminal. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] like Figures 1 to 9 As shown, an auxiliary tool for replacing a power insulator includes a side bracket 1 and a side bracket 2, and the side bracket 1 and the side bracket 2 are used in parallel with each other;

[0043] Two ball-type positioning mechanisms 3 are rotatably connected on the side walls of the side bracket 1 and the side bracket 2, and the two ball-type positioning mechanisms 3 are respectively located at the upper and lower ends of the side bracket 1 or the side bracket 2, and all the two ball-type positioning mechanisms 3 are distributed in a linear array along the length direction of the side bracket 1 or the side bracket 2, and a lifting nut 4 is installed at the upper limit of the side wall of the side bracket 1, and a screw 5 located inside the side bracket 1 and capable of vertical lifting is threadedly matched in the lifting nut 4, and a sliding rod 6 capable of vertical lifting is slidably connected inside the side bracket 2, and the ends of the screw 5 and the sliding rod 6 are fixedly connected with a hanging ring 7;

[0044] The ball-type positioning mechanism 3 comprises a reference rotary seat 301, to which an L-shaped positioning frame 302 is fixedly connected, and the bending part of the L-shaped positioning frame 302 is a rounded frame 303, and a protruding and rolling ball 304 is installed in the rounded frame 303;

[0045] The power insulator replacement auxiliary tool is used for vertical installation of the insulator 11 , and the ball-type positioning mechanism 3 is used for fixing the umbrella plate of the insulator 11 , so as to facilitate the subsequent connection of the metal end of the insulator 11 with the connection terminal 13 of the wire 12 .

[0046] The tool is provided with a ball-type positioning mechanism 3, and the umbrella plate of the insulator 11 can be positioned by using the ball-type positioning mechanisms 3 arranged opposite to each other at two places. Since the upper and lower sides and the inner side of the ball-type positioning mechanism 3 are provided with balls 304, the insulator 11 can still rotate after being positioned, so as to adjust the docking direction of the metal end of the insulator 11, thereby smoothly completing the connection between the metal end of the insulator 11 and the wiring terminal 13, which will be more flexible and convenient during installation and replacement.

[0047] like Fig.10 As shown, the balls 304 are arranged in a circular array on the upper and lower surfaces and the side surfaces of the rounded frame 303. In order to reduce the friction force of the insulator 11 when rotating, the balls 304 are arranged on the upper and lower surfaces and the side surfaces of the rounded frame 303, wherein the inner side wall of the rounded frame 303 is just clamped on the umbrella plate of the insulator 11.

[0048] like Figure 5 and Figure 8 As shown, the reference rotary seat 301 is rotatably connected to the annular groove 8 fixed on the side bracket 1 or the side bracket 2, and the reference rotary seat 301 can rotate horizontally along the annular groove 8, and its rotation angle is 0-360°. In order to improve the flexibility of the ball-type positioning mechanism 3 when in use, the reference rotary seat 301 is set to be rotatable, so as to facilitate the installation or removal of the tool from the insulator 11.

[0049] like Fig. 9 As shown, the end of the L-shaped positioning frame 302 is fixedly connected with a docking bolt 305, and the frame of the L-shaped positioning frame 302 is also penetrated with a docking groove 306 used in conjunction with the docking bolt 305, and the docking bolt 305 can be inserted into the docking groove 306. A fastening nut 307 is installed on the docking bolt 305 through threaded cooperation; wherein the fastening nut is a butterfly head nut. In order to achieve the positioning of the insulator 11, by rotating the reference rotating seats 301 on the same horizontal plane at two locations, until the two docking bolts 305 are respectively inserted into each other's docking grooves 306, and then locking them by fastening nuts, the two ball-type positioning mechanisms 3 can be locked, thereby achieving the positioning of the insulator 11.

[0050] like Figure 6 to Figure 7 As shown, a side limit cavity 9 is also provided on the side wall of the side bracket 1, and the lifting nut 4 is limited in the side limit cavity 9, and half of the lifting nut 4 is exposed outside the side limit cavity 9; wherein, a plurality of circumferential arrays of longitudinal anti-slip grooves are provided on the outer side wall of the side limit cavity 9. In order to achieve the lifting and lowering of the insulator 11, by rotating the lifting nut 4, since the lifting nut 4 is limited in the side limit cavity 9, the screw 5 is driven to rise and fall under the action of the thread, so as to adjust the position of the insulator 11, thereby facilitating the connection between the metal end of the insulator 11 and the terminal 13.

[0051] like Figure 5 As shown, the outer side of the hanging ring 7 is also wrapped with an anti-skid insulating layer 10, and the anti-skid insulating layer 10 is made of insulating rubber and other materials. In order to improve the anti-skid effect of the hanging ring 7, the anti-skid insulating layer 10 is wrapped on the outer side of the hanging ring 7 to improve the stability during hanging.

[0052] like Figure 8 As shown, a damper is provided between the outer side wall of the slide bar 6 and the inner side wall of the side bracket 2. In order to prevent the side bracket 2 from sliding down due to its own gravity, dampers are provided on the side walls of the two to increase the sliding friction.

[0053] The working principle of this utility model:

[0054] When in use, by rotating the reference rotating seats 301 on the same horizontal plane at two locations, until the two docking bolts 305 are respectively inserted into the docking grooves 306 of the other party, and then locking them by tightening the nuts, the two ball-type positioning mechanisms 3 can be locked. After the ball-type positioning mechanisms 3 position the umbrella plates at the upper and lower ends of the insulator 11 respectively, the insulator 11 can be positioned. Figure 3 shown.

[0055] Then, the tool is connected to the insulator 11 and hung on the upper wire 12 through the hanging ring 7, and then the metal end of the insulator 11 is connected to the wiring terminal 13, as shown in FIG. Figure 2 shown.

[0056] When connecting the metal end of the insulator 11 and the terminal 13: 1. The height of the insulator 11 can be adjusted to facilitate the adjustment of the distance between the metal end of the insulator 11 and the terminal 13. By rotating the lifting nut 4, since the lifting nut 4 is limited in the side limit cavity 9, the screw 5 will be driven to rise and fall under the action of the thread to facilitate the adjustment of the position of the insulator 11; 2. The insulator 11 can be rotated as a whole to facilitate the adjustment of the direction of the metal end of the insulator 11. The above two adjustment methods will be more flexible and convenient when connecting the metal end of the insulator 11 and the terminal 13.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary tool for replacing a power insulator, comprising a side bracket 1 (1) and a side bracket 2 (2), wherein the side bracket 1 (1) and the side bracket 2 (2) are used in parallel with each other; Features: The side walls of the side bracket one (1) and the side bracket two (2) are both rotatably connected with two ball-type positioning mechanisms (3), the two ball-type positioning mechanisms (3) are respectively located at the upper and lower ends of the side bracket one (1) or the side bracket two (2), and all the two ball-type positioning mechanisms (3) are distributed in a linear array along the length direction of the side bracket one (1) or the side bracket two (2), and the upper limit position of the side wall of the side bracket one (1) is installed with a lifting nut (4), and the lifting nut (4) is threadedly matched with a screw rod (5) located inside the side bracket one (1) and capable of vertical lifting, and the inside of the side bracket two (2) is slidably connected with a sliding rod (6) capable of vertical lifting, and the ends of the screw rod (5) and the sliding rod (6) are fixedly connected with hanging rings (7); The ball-type positioning mechanism (3) comprises a reference rotating seat (301), an L-shaped positioning frame (302) is fixedly connected to the reference rotating seat (301), the bending part of the L-shaped positioning frame (302) is a rounded frame (303), and a protruding and rolling ball (304) is installed in the rounded frame (303) in a limited position.

2. The power insulator replacement auxiliary tool according to claim 1, characterized in that: The balls (304) are arranged in a circular array on the upper and lower surfaces and the side surfaces of the rounded frame (303).

3. The power insulator replacement auxiliary tool according to claim 2, characterized in that: The reference rotating seat (301) is rotatably connected to an annular slide groove (8) fixed on the side bracket one (1) or the side bracket two (2), and the reference rotating seat (301) can rotate horizontally along the annular slide groove (8), and its rotation angle is 0-360°.

4. The power insulator replacement auxiliary tool according to claim 3, characterized in that: The end of the L-shaped positioning frame (302) is fixedly connected with a docking bolt (305), and the frame body of the L-shaped positioning frame (302) is also penetrated with a docking groove (306) used in conjunction with the docking bolt (305), and the docking bolt (305) can be inserted into the docking groove (306), and a fastening nut (307) is installed on the docking bolt (305) through threaded cooperation.

5. The power insulator replacement auxiliary tool according to claim 4, characterized in that: The fastening nut is a butterfly head nut.

6. The power insulator replacement auxiliary tool according to claim 1, characterized in that: A side limiting cavity (9) is also provided on the side wall of the side bracket (1), the lifting nut (4) is limited in the side limiting cavity (9), and half of the lifting nut (4) is exposed outside the side limiting cavity (9).

7. The power insulator replacement auxiliary tool according to claim 6, characterized in that: The outer side wall of the side limiting cavity (9) is provided with a plurality of longitudinal anti-slip grooves in a circumferential array.

8. The power insulator replacement auxiliary tool according to claim 1, characterized in that: The outer side of the hanging ring (7) is also wrapped with an anti-slip insulating layer (10).

9. The power insulator replacement auxiliary tool according to claim 1, characterized in that: A damper is provided between the outer side wall of the slide bar (6) and the inner side wall of the second side bracket (2).

10. The power insulator replacement auxiliary tool according to any one of claims 1 to 9, characterized in that: The power insulator replacement auxiliary tool is used for vertical installation of an insulator (11), and the ball-type positioning mechanism (3) is used to fix the umbrella plate of the insulator (11), thereby facilitating the subsequent connection of the metal end of the insulator (11) with the connection terminal (13) of the electric wire (12).

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