A telescopic insulating spacer

Abstract

The present invention belongs to the technical field of electric power system. A telescopic insulating spacer, characterized by comprising a left outer conductor fixing socket, a left telescopic rod, a left inner conductor fixing socket, a left insulating main pipe, a telescopic driving mechanism, a right telescopic rod, a right insulating main pipe, a right inner conductor fixing socket, and a right outer conductor fixing socket; the outer conductor fixing socket is fixed to the left end of the left telescopic rod, and the left inner conductor fixing socket is fixed to the left part of the left telescopic rod; the right end of the left insulating main pipe is fixedly connected to the left end of the bevel box of the telescopic driving mechanism, and the right end of the left telescopic rod is inserted into the through hole of the left insulating main pipe and connected to the telescopic driving mechanism; the right outer conductor fixing socket is fixed to the right end of the right telescopic rod, and the right inner conductor fixing socket is fixed to the right part of the right telescopic rod; the left end of the right telescopic rod is inserted into the through hole of the right insulating main pipe and connected to the telescopic driving mechanism. The width of the lifting channel when assembling the pole can be increased, and the specified safety distance between the pole and the low-voltage conductor can be effectively guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of power systems, and in particular relates to a telescopic insulating spacer rod. Background Art

[0002] When assembling 0.4kV and 10kV live poles, the safe air gap between the conductors cannot be guaranteed. Insulated tools are urgently needed to prop open the conductors and increase the width of the lifting channel when assembling the poles to ensure the required safe distance between the poles and the low-voltage conductors. Summary of the invention

[0003] The object of the present invention is to provide a telescopic insulating spacer which can increase the width of a lifting channel when assembling an electric pole and effectively ensure a prescribed safety distance between the electric pole and a low-voltage conductor.

[0004] In order to achieve the above-mentioned object, the technical scheme adopted by the present invention is: a telescopic insulating spacer, characterized in that it includes a left outer wire fixing base, a left telescopic rod, a left inner wire fixing base, a left insulating main pipe, a telescopic drive mechanism, a right telescopic rod, a right insulating main pipe, a right inner wire fixing base, and a right outer wire fixing base; the left outer wire fixing base is fixed to the left end of the left telescopic rod, the left inner wire fixing base is fixed to the left part of the left telescopic rod, and the left inner wire fixing base is located on the right side of the left outer wire fixing base; the left insulating main pipe is a through hole, and the left insulating main pipe is The right end of the left telescopic rod is fixedly connected to the left end of the bevel box of the telescopic drive mechanism, and the right end of the left telescopic rod is inserted into the through hole of the left insulating main pipe and connected to the telescopic drive mechanism; the right outer wire fixing clamp is fixed to the right end of the right telescopic rod, the right inner wire fixing clamp is fixed to the right part of the right telescopic rod, and the right inner wire fixing clamp is located on the left side of the right outer wire fixing clamp; the right insulating main pipe is a through hole, the left end of the right insulating main pipe is fixedly connected to the right end of the bevel box of the telescopic drive mechanism, and the left end of the right telescopic rod is inserted into the through hole of the right insulating main pipe and connected to the telescopic drive mechanism;

[0005] The telescopic driving mechanism comprises a reverse threaded screw, a left nut, a bevel gear box, a main transmission shaft, a right nut, a normal threaded screw, a right bearing, a left bearing, an upper bearing, an active bevel gear, a right driven bevel gear, a lower bearing, and a left driven bevel gear; a gear cavity is arranged in the bevel gear box, an upper opening, a left opening, and a right opening are arranged on the bevel gear box, the upper opening, the left opening, and the right opening are respectively connected to the gear cavity, the central axis of the left opening and the central axis of the right opening are located on the same axis, and the central axis of the upper opening is perpendicular to the central axes of the left opening and the right opening; the active bevel gear, the right driven bevel gear, and the left driven bevel gear are all located in the gear cavity of the bevel gear box, and the right driven bevel gear is located in the left driven bevel gear cavity On the right side of the wheel, the central axis of the right driven bevel gear and the central axis of the left driven bevel gear are located on the same axis, and the central axis of the active bevel gear is perpendicular to the central axes of the right driven bevel gear and the left driven bevel gear; the lower part of the main transmission shaft penetrates into the gear cavity through the upper opening of the bevel gear box, the lower end of the main transmission shaft is connected to the bevel gear box by the lower bearing, and the upper part of the main transmission shaft is connected to the bevel gear box by the upper bearing, the active bevel gear is installed on the main transmission shaft, and the right driven bevel gear and the left driven bevel gear are respectively meshed with the active bevel gear; the through hole of the left insulating main pipe is connected to the gear cavity through the left opening, and the through hole of the right insulating main pipe is connected to the gear cavity through the right opening;

[0006] The left telescopic rod has a through hole, and the right end of the left telescopic rod is fixed with a left nut, which is screwed on the reverse threaded screw rod. The left part of the reverse threaded screw rod is located in the through hole of the left telescopic rod, and the right part of the reverse threaded screw rod is located in the through hole of the left insulating main pipe. The right end of the reverse threaded screw rod is connected to the bevel gear box through the left bearing, and the left driven bevel gear is located on the right side of the left bearing, and the right end of the reverse threaded screw rod is connected to the left driven bevel gear.

[0007] There is a through hole in the right telescopic rod, and a right nut is fixed to the left end of the right telescopic rod. The right nut is screwed on the orthodontic screw rod, the right part of the orthodontic screw rod is located in the through hole of the right telescopic rod, the left part of the orthodontic screw rod is located in the through hole of the right insulating main pipe, the left end of the orthodontic screw rod is connected to the bevel gear box through the right bearing, the right driven bevel gear is located on the left side of the right bearing, and the left end of the orthodontic screw rod is connected to the right driven bevel gear.

[0008] The left inner wire fixing base comprises an open clamp ring, a U-shaped support plate, and a bayonet pin. The U-shaped support plate is fixed on the open clamp ring. The two ends of the U-shaped support plate are respectively provided with pin holes, and the bayonet pin is inserted into the pin holes (a stop block is provided at the upper end of the bayonet pin); the two ends of the open clamp ring are respectively provided with screw passing holes, the open clamp ring is sleeved on the left telescopic rod, and one end of the screw passes through the two screw passing holes on the open clamp ring and then a nut is screwed on.

[0009] The upper end portion of the main transmission shaft is a square head.

[0010] The beneficial effects of the present invention are: the width of the lifting channel when assembling the electric pole can be increased, and the prescribed safety distance between the electric pole and the low-voltage wire can be effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the telescopic insulating spacer rod of the present invention.

[0012] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0013] Figure 3 It is a structural schematic diagram of a fixed holder of a telescopic insulating spacer rod of the present invention.

[0014] In the figure: 1-left outer wire fixing base, 2-left telescopic rod, 3-left inner wire fixing base, 4-left insulating main pipe, 5-reverse threaded screw, 6-left nut, 7-bevel gear box, 8-main transmission shaft, 9-right nut, 10-positive threaded screw, 11-right telescopic rod, 12-right insulating main pipe, 13-right inner wire fixing base, 14-right outer wire fixing base, 15-right bearing, 16-gear cavity, 17-left bearing, 18-upper bearing, 19-active bevel gear, 20-right driven bevel gear, 21-lower bearing, 22-left driven bevel gear, 23-opening snap ring, 24-U-type support plate, 25-pin. DETAILED DESCRIPTION

[0015] like Figure 1-3 As shown, a telescopic insulating spacer comprises a left outer conductor fixing base 1, a left telescopic rod 2, a left inner conductor fixing base 3, a left insulating main pipe 4, a telescopic driving mechanism, a right telescopic rod 11, a right insulating main pipe 12, a right inner conductor fixing base 13, and a right outer conductor fixing base 14; the left outer conductor fixing base 1 is fixed to the left end of the left telescopic rod 2 ( Figure 1 The left side is left and the right side is right), the left inner wire fixing base 3 is fixed to the left part of the left telescopic rod 2, and the left inner wire fixing base 3 is located on the right side of the left outer wire fixing base 1; the left insulating main pipe 4 has a through hole, the right end of the left insulating main pipe 4 is fixedly connected to the left end of the bevel box 7 of the telescopic drive mechanism (the left end of the left insulating main pipe 4 is a free end), and the right end of the left telescopic rod 2 is inserted into the through hole of the left insulating main pipe 4 and is connected to the telescopic drive mechanism (the left telescopic rod 2 can move in the left insulating main pipe 4, and the telescopic drive mechanism makes the left telescopic rod 2 telescope in the left and right directions); the right outer wire fixing base 14 is fixed The right inner wire fixing base 13 is fixed to the right end of the right telescopic rod 11, and the right inner wire fixing base 13 is fixed to the right part of the right telescopic rod 11, and the right inner wire fixing base 13 is located on the left side of the right outer wire fixing base 14; the right insulating main pipe 12 has a through hole, and the left end of the right insulating main pipe 12 is fixedly connected to the right end of the bevel box 7 of the telescopic drive mechanism (the right end of the right insulating main pipe 12 is a free end), and the left end of the right telescopic rod 11 penetrates into the through hole of the right insulating main pipe 12 and is connected to the telescopic drive mechanism (the right telescopic rod 11 can move in the right insulating main pipe 12, and the telescopic drive mechanism makes the right telescopic rod 11 telescope in the left and right directions);

[0016] The telescopic drive mechanism comprises a reverse threaded rod (reverse threaded rod) 5, a left nut 6, a bevel gear box 7, a main transmission shaft 8, a right nut 9, a positive threaded rod (positive threaded rod) 10, a right bearing 15, a left bearing 17, an upper bearing 18, an active bevel gear 19, a right driven bevel gear 20, a lower bearing 21, and a left driven bevel gear 22; a gear cavity 16 is arranged in the bevel gear box 7, an upper opening, a left opening, and a right opening are arranged on the bevel gear box 7, the upper opening, the left opening, and the right opening are respectively connected to the gear cavity 16, the central axis of the left opening and the central axis of the right opening are located on the same axis, and the central axis of the upper opening is perpendicular to the central axes of the left opening and the right opening; the active bevel gear (bevel gear or bevel gear, 45 0 The right bevel gear 19, the right driven bevel gear 20 and the left driven bevel gear 22 are all located in the gear cavity 16 of the bevel gear box 7, the right driven bevel gear 20 is located on the right side of the left driven bevel gear 22, the central axis of the right driven bevel gear 20 and the central axis of the left driven bevel gear 22 are located on the same axis, and the central axis of the active bevel gear 19 is perpendicular to the central axes of the right driven bevel gear 20 and the left driven bevel gear 22; the lower part of the main transmission shaft 8 penetrates into the gear cavity 16 through the upper opening of the bevel gear box 7, the lower end of the main transmission shaft 8 is connected to the bevel gear box 7 by the lower bearing 21, the upper part of the main transmission shaft 8 is connected to the bevel gear box 7 by the upper bearing 18, the active bevel gear 19 is installed on the main transmission shaft 8, and the right driven bevel gear 20 and the left driven bevel gear 22 are meshed with the active bevel gear 19 respectively; the through hole of the left insulating main pipe 4 is connected to the gear cavity 16 through the left opening, and the through hole of the right insulating main pipe 12 is connected to the gear cavity 16 through the right opening;

[0017] There is a through hole in the left telescopic rod 2, and a left nut 6 is fixed to the right end of the left telescopic rod 2 (the left nut 6 can also be fixed in the through hole of the left telescopic rod 2), and the left nut 6 is screwed on the reverse threaded rod (reverse threaded rod) 5, and the left part of the reverse threaded rod 5 is located in the through hole of the left telescopic rod 2, and the right part of the reverse threaded rod 5 is located in the through hole of the left insulating main pipe 4, and the right end of the reverse threaded rod 5 is connected to the bevel gear box 7 through the left bearing 17 (the left bearing 17 is located in the left mouth of the bevel gear box 7), and the left driven bevel gear 22 is located on the right side of the left bearing 17, and the right end of the reverse threaded rod 5 is connected to the left driven bevel gear 22 (such as: the left driven bevel gear 22 reverses, driving the reverse threaded rod 5 to reverse, and the left nut 6 moves the left telescopic rod 2 to the left);

[0018] The right telescopic rod 11 has a through hole, and a right nut 9 is fixed to the left end of the right telescopic rod 11 (the right nut 9 can also be fixed in the through hole of the right telescopic rod 11). The right nut 9 is screwed on the orthodontic screw rod (orthodontic threaded rod) 10. The right part of the orthodontic screw rod 10 is located in the through hole of the right telescopic rod 11, and the left part of the orthodontic screw rod 10 is located in the through hole of the right insulating main pipe 12. The left end of the orthodontic screw rod 10 is connected to the bevel gear box 7 through a right bearing 15 (the right bearing 15 is located in The right bearing 15 may also be located in the through hole of the right insulating main pipe 12 in the right opening of the bevel gear box 7), the right driven bevel gear 20 is located on the left side of the right bearing 15, and the left end of the orthodontic screw 10 is connected to the right driven bevel gear 20 (such as: the right driven bevel gear 20 rotates forward, driving the orthodontic screw 10 to rotate forward, and the right nut 9 moves the right telescopic rod 11 to the right; that is, the main transmission shaft 8 rotates, driving the left telescopic rod 2 and the right telescopic rod 11 to extend or retract outward at the same time).

[0019] The left inner wire fixing base 3 includes an open snap ring 23, a U-shaped support plate 24, and a bayonet 25. The U-shaped support plate 24 is fixed on the open snap ring 23. The two ends of the U-shaped support plate 24 are respectively provided with pin holes, and the bayonet 25 is inserted into the pin holes (a stopper is provided at the upper end of the bayonet 25); the two ends of the open snap ring 23 are respectively provided with screw passing holes, the open snap ring 23 is sleeved on the left telescopic rod 2, and one end of the screw passes through the two screw passing holes on the open snap ring 23 and then a nut is screwed on.

[0020] The upper end of the main transmission shaft 8 is a square head (which can be rotated using a wrench).

[0021] The structures of the left outer wire fixing socket 1 , the right inner wire fixing socket 13 , and the right outer wire fixing socket 14 are the same as that of the left inner wire fixing socket 3 .

[0022] 1. Type: insulating tool, model: DHCG; 2. Name: telescopic insulating spacer, 3. Telescopic length: 1.9m-3m, 4. Main pipe material: epoxy resin lead-out tube, 5. Wire fixing holder (wire support card) material: high-strength nylon, 6. Electrical performance: 100kV / 1min / 0.4m, 7. Operating voltage level: 0.4KV-10kV universal, 8. Weight: 3.5kg.

[0023] Usage: 1. The positions of the left outer conductor fixing socket 1 and the left inner conductor fixing socket 3 are fixed, and the two conductors on the left side of the pole are respectively stuck in them (first pull out the pin 25, then put the conductors into the U-shaped support plate 24, and then insert the pin 25), that is, the distance between the two conductors is fixed (in addition, the position of the left inner conductor fixing socket 3 can be adjusted manually as needed). 2. The right inner conductor fixing socket 13 and the right outer conductor fixing socket 14 are fixed, and the two conductors on the right side of the pole are respectively stuck in them, that is, the distance between the two conductors is fixed (in addition, the position of the right inner conductor fixing socket 13 can be adjusted manually as needed). 3. The main transmission shaft 8 rotates, driving the left telescopic rod 2 and the right telescopic rod 11 to extend or retract outward at the same time, that is, the distance between the left and right conductors can be maintained at a certain distance. 4. After the operation is completed, pull out the pin 25 to limit the lower conductor.

[0024] Used for 0.4kV and 10kV live pole assembly. By installing telescopic insulating spacers to prop up the conductors, the width of the lifting channel during pole assembly can be increased, effectively ensuring the required safety distance between the pole and the low-voltage conductor. The telescopic insulating spacers are made of high-insulation epoxy resin material and nylon material. Four conductor fixing holders (conductor fixing devices) are arranged on the surface of the insulating spacers. Operators can use electric wrenches to extend the spacers to prop up the conductors and increase the safe air gap. The new insulating spacers have many advantages such as good insulation performance, high mechanical strength, convenient operation, and firm and reliable installation.

[0025] Instructions for use: The operator wears personal protective equipment, first places the telescopic insulating spacer on the shielded low-voltage conductor, then puts the low-voltage conductor into the conductor fixing holder of the spacer phase by phase, closes the pin (safety pin), and finally uses an electric wrench to retract it.

[0026] Notes: ① Wear arc-proof clothing and arc-proof two-in-one insulating gloves during installation; ② Put the low-voltage wire into the fixed holder of the spacer, and make sure that the safety pin of the holder is closed; ③ When using an electric wrench to extend or retract the insulating spacer, proceed slowly and at a uniform speed.

Claims

1. A telescopic insulating spacer, characterized in that The invention comprises a left outer wire fixing base (1), a left telescopic rod (2), a left inner wire fixing base (3), a left insulating main pipe (4), a telescopic drive mechanism, a right telescopic rod (11), a right insulating main pipe (12), a right inner wire fixing base (13), and a right outer wire fixing base (14); the left outer wire fixing base (1) is fixed to the left end of the left telescopic rod (2), the left inner wire fixing base (3) is fixed to the left part of the left telescopic rod (2), and the left inner wire fixing base (3) is located on the right side of the left outer wire fixing base (1); the left insulating main pipe (4) has a through hole, and the right end of the left insulating main pipe (4) is connected to the bevel gear box (7) of the telescopic drive mechanism. The left end is fixedly connected, and the right end of the left telescopic rod (2) is inserted into the through hole of the left insulating main pipe (4) and connected to the telescopic drive mechanism; the right outer wire fixing clamp (14) is fixed to the right end of the right telescopic rod (11), and the right inner wire fixing clamp (13) is fixed to the right part of the right telescopic rod (11), and the right inner wire fixing clamp (13) is located on the left side of the right outer wire fixing clamp (14); the right insulating main pipe (12) has a through hole, and the left end of the right insulating main pipe (12) is fixedly connected to the right end of the bevel box (7) of the telescopic drive mechanism, and the left end of the right telescopic rod (11) is inserted into the through hole of the right insulating main pipe (12) and connected to the telescopic drive mechanism; The telescopic driving mechanism comprises a reverse threaded screw (5), a left nut (6), a bevel gear box (7), a main transmission shaft (8), a right nut (9), a normal threaded screw (10), a right bearing (15), a left bearing (17), an upper bearing (18), an active bevel gear (19), a right driven bevel gear (20), a lower bearing (21), and a left driven bevel gear (22); a gear chamber (16) is provided in the bevel gear box (7); an upper opening, a left opening, and a right opening are provided on the bevel gear box (7); the upper opening, the left opening, and the right opening are respectively connected to the gear chamber (16); the central axis of the left opening and the central axis of the right opening are located on the same axis; the central axis of the upper opening is perpendicular to the central axes of the left opening and the right opening; the active bevel gear (19), the right driven bevel gear (20), and the left driven bevel gear (22) are all located in the gear chamber (16) of the bevel gear box (7); the right driven bevel gear (20) is located on the left driven bevel gear ( On the right side of the main transmission shaft (22), the central axis of the right driven bevel gear (20) and the central axis of the left driven bevel gear (22) are located on the same axis, and the central axis of the active bevel gear (19) is perpendicular to the central axes of the right driven bevel gear (20) and the left driven bevel gear (22); the lower part of the main transmission shaft (8) penetrates into the gear cavity (16) through the upper opening of the bevel gear box (7), the lower end of the main transmission shaft (8) is connected to the bevel gear box (7) by a lower bearing (21), the upper part of the main transmission shaft (8) is connected to the bevel gear box (7) by an upper bearing (18), the active bevel gear (19) is installed on the main transmission shaft (8), and the right driven bevel gear (20) and the left driven bevel gear (22) are respectively meshed with the active bevel gear (19); the through hole of the left insulating main pipe (4) is connected to the gear cavity (16) through the left opening, and the through hole of the right insulating main pipe (12) is connected to the gear cavity (16) through the right opening; The left telescopic rod (2) has a through hole, the right end of the left telescopic rod (2) is fixed with a left nut (6), the left nut (6) is screwed on the reverse threaded rod (5), the left part of the reverse threaded rod (5) is located in the through hole of the left telescopic rod (2), the right part of the reverse threaded rod (5) is located in the through hole of the left insulating main pipe (4), the right end of the reverse threaded rod (5) is connected to the bevel gear box (7) through the left bearing (17), the left driven bevel gear (22) is located on the right side of the left bearing (17), and the right end of the reverse threaded rod (5) is connected to the left driven bevel gear (22); A through hole is formed in the right telescopic rod (11), a right nut (9) is fixed to the left end of the right telescopic rod (11), the right nut (9) is screwed onto the orthodontic screw rod (10), the right portion of the orthodontic screw rod (10) is located in the through hole of the right telescopic rod (11), the left portion of the orthodontic screw rod (10) is located in the through hole of the right insulating main pipe (12), the left end of the orthodontic screw rod (10) is connected to the bevel gear box (7) via a right bearing (15), the right driven bevel gear (20) is located on the left side of the right bearing (15), and the left end of the orthodontic screw rod (10) is connected to the right driven bevel gear (20); The left inner wire fixing base (3) comprises an open clamp ring (23), a U-shaped support plate (24), and a clamp pin (25). The U-shaped support plate (24) is fixed on the open clamp ring (23). Both ends of the U-shaped support plate (24) are respectively provided with bolt holes, and the clamp pin (25) is inserted into the bolt holes. Both ends of the open clamp ring (23) are respectively provided with screw rod passing holes. The open clamp ring (23) is sleeved on the left telescopic rod (2), and one end of the screw rod passes through two screw rod passing holes on the open clamp ring (23) and then a nut is screwed on.

2. A telescopic insulating spacer according to claim 1, characterized in that: The upper end portion of the main transmission shaft (8) is a square head.

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