Live wire lifting device and use method

Abstract

The invention provides a live wire lifting device and a use method, and belongs to the technical field of electric power, and the live wire lifting device comprises a tripod, a hoop, a ratchet tightener, a U-shaped wire clamp, an insulating pipe, a three-way pipe and a hanging ring; an internal threaded hole is formed in a transverse joint of the three-way pipe, and a through hole is formed in a vertical joint of the three-way pipe; the right end part of the tripod is in threaded connection with a transverse joint of the three-way pipe, and the left end of the tripod is connected with a hoop fixed on an electric pole; after the upper part of the insulating pipe penetrates through a through hole in the vertical joint of the three-way pipe, the upper end part of the insulating pipe is in threaded connection with the lower end part of the U-shaped wire clamp, and the upper part of the U-shaped wire clamp is provided with a U-shaped wire bayonet; the lower end part of the insulating tube is fixedly connected with a hanging ring, a rope or a belt of the ratchet wheel tightener is fixedly connected with the hanging ring, and a tightener body of the ratchet wheel tightener is fixedly arranged below the three-way tube. The device can be fixedly mounted on an electric pole below a cross arm.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power, and in particular relates to a live wire lifting device and a use method thereof. Background Art

[0002] When replacing a linear pole insulator or pole accessories during live grid operations, the live conductor must be separated from the insulator until a safe working distance is reached.

[0003] Chinese patent CN202111019275.6 discloses a pole-mounted insulated conductor lifting tool, which is fixedly installed on the cross arm of the pole. The disadvantage is that the distance between adjacent (left and right) insulators on the cross arm is small, and the space for installing the pole-mounted insulated conductor lifting tool is limited. Based on this, it is necessary to develop a live conductor lifting device that can be fixedly installed on the pole under the cross arm. Summary of the invention

[0004] The purpose of the present invention is to provide a live wire lifting device and a method of use, wherein the device can be fixedly installed on a pole below a cross arm.

[0005] In order to realize the above-mentioned technical features, the purpose of the present invention is realized as follows: a live wire lifting device comprises a tripod, a clamp, a ratchet tensioner, a U-shaped wire clamp, an insulating tube, a tee and a hanging ring; the tee's transverse joint has an internal threaded hole, and the tee's vertical joint has a through hole; the right end of the tripod is threadedly connected to the tee's transverse joint, and the left end of the tripod is connected with a clamp for fixing on the pole; after the upper part of the insulating tube passes through the through hole in the vertical joint of the tee, the upper end of the insulating tube is threadedly connected to the lower end of the U-shaped wire clamp, and the upper part of the U-shaped wire clamp is provided with a U-shaped wire clamp; the lower end of the insulating tube is fixedly connected with a hanging ring, the rope or belt of the ratchet tensioner is fixedly connected to the hanging ring, and the body of the ratchet tensioner is fixedly installed below the tee.

[0006] The outer diameter of the insulating tube is 1-10 mm smaller than the inner diameter of the through hole in the vertical joint of the tee pipe.

[0007] The tripod includes a vertical rod, a horizontal rod and an oblique support rod. The right end of the horizontal rod is threadedly connected to the transverse joint of the tee pipe, the left end of the horizontal rod is fixedly connected to the upper right side of the vertical rod, and the left side of the vertical rod is fixedly connected with a clamp; the lower end of the oblique support rod is fixedly connected to the lower right side of the vertical rod, and the upper end of the oblique support rod is fixedly connected to the middle or right bottom of the horizontal rod.

[0008] An upper arc stopper is fixedly connected to the left side surface of the upper end of the vertical rod of the tripod, and a lower arc stopper is fixedly connected to the left side surface of the lower end of the vertical rod. The arc surfaces of the lower arc stopper and the upper arc stopper are located on the left side, the lower arc stopper is located below the clamp, and the upper arc stopper is located above the clamp.

[0009] The clamp comprises a ratchet tensioner, an articulated seat, a hanging pin seat and a hanging pin; the right end of the articulated seat is fixedly connected to the left side of the vertical rod of the tripod, the right end of the hanging pin seat is fixedly connected to the left side of the vertical rod of the tripod, and the left end of the hanging pin seat is installed with a hanging pin; the ratchet tensioner is hinged to the left end of the articulated seat, and the hook on the webbing on the ratchet tensioner is hooked on the hanging pin when in use.

[0010] A plug hole is arranged in the middle of the right side of the vertical joint of the three-way pipe, a plurality of plug holes are arranged at the lower part of the insulating pipe, and the left part of the safety pin is inserted into the plug hole of the vertical joint of the three-way pipe.

[0011] The method for using the live wire lifting device comprises the following steps: First, adjust the ratchet tensioner to loosen the rope or belt to lower the insulating tube to the lowest position, then select a suitable position on the pole 200mm~300mm below the crossarm, and surround the pole with the webbing on the ratchet tensioner of the clamp, hook the hook on the webbing on the ratchet tensioner on the hook pin, retract the webbing through the handle on the ratchet tensioner, and fix the clamp on the pole; when fixing, pay attention to adjust the position so that the U-shaped wire clamp is directly below the wire to be lifted, shake the ratchet tensioner to lift the insulating tube so that the wire falls into the U-shaped wire clamp and is in a pre-stressed state, check and confirm that the live wire lifting device is in good stress condition, untie the binding wire at the top groove of the insulator, and continue to shake the ratchet tensioner to lift the wire to the appropriate position, and finally insert the safety pin to prevent the insulating tube from accidentally falling to complete the lifting of the wire; After the insulator is replaced, first remove the safety pin, shake the ratchet tensioner to lower the conductor into the top groove of the insulator, check and confirm that the live conductor lifting device is in good force condition, tie the wire, open the safety rod, and continue to shake the ratchet tensioner to lower the insulating tube to the lowest position to make the conductor detach from the U-shaped conductor clamp, finally, detach the hook on the webbing on the ratchet tensioner from the hook pin, and remove the live conductor lifting device.

[0012] The present invention has the following beneficial effects: 1. The device of the present invention can be fixedly installed on the pole below the cross arm and used for lifting and lowering operations of live wires.

[0013] 2. The present invention can achieve the purpose of tightening the wire through the ratchet wire tightener mentioned above. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a front view of the live wire lifting device of the present invention.

[0016] Figure 2 It is a top view of the live wire lifting device of the present invention.

[0017] Figure 3 It is a left side view of the live wire lifting device of the present invention.

[0018] Figure 4 It is a three-dimensional diagram of the live wire lifting device of the present invention. Figure 5 It is a structural schematic diagram of the tripod of the present invention.

[0019] Figure 6 It is a structural schematic diagram of the clamp of the present invention.

[0020] Figure 7 It is a structural schematic diagram of the ratchet wire tightener of the present invention.

[0021] Figure 8 It is a structural schematic diagram of the insulating tube of the present invention.

[0022] In the figure: 1-tripod, 2-hoop, 3-ratchet tensioner, 4-U-shaped wire clamp, 5-safety rod, 6-safety pin, 7-insulating tube, 8-rope or belt, 9-tee tube, 10-U-shaped wire bayonet, 11-hanging ring, 12-lower arc stopper, 13-upper arc stopper, 14-vertical rod, 15-cross rod, 16-diagonal support rod, 17-tubular stopper, 18-ratchet tensioner, 19-hinged seat, 20-hanging pin, 21-hook, 22-jack. The unit of the dimensions in the figure is mm. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0024] Embodiment 1: like Figure 1-8 As shown, the live wire lifting device includes a tripod 1, a clamp 2, a ratchet tensioner 3, a U-shaped wire clamp 4, an insulating tube 7, a tee 9, and a hanging ring 11; the tee (the tee can be an aluminum alloy tee) 9 has an internal threaded hole in the transverse joint and is provided with an internal thread, and the vertical joint of the tee 9 has a through hole; the right end of the tripod 1 is threadedly connected to the transverse joint of the tee 9, and the right end of the tripod 1 is provided with an external thread. For the convenience of description, Figure 1The left side is left and the right side is right. The right end of the tripod 1 is screwed into the internal threaded hole of the horizontal joint of the tee pipe 9, and the left end of the tripod 1 is connected with a clamp 2 for fixing on the pole; after the upper part of the insulating tube 7 passes through the through hole in the vertical joint of the tee pipe 9, the upper end of the insulating tube 7 is threadedly connected with the lower end of the U-shaped wire clamp 4, the upper end of the insulating tube 7 is provided with an external thread, and the lower end of the U-shaped wire clamp 4 is provided with an internal threaded hole. The upper end of the insulating tube 7 is screwed into the internal threaded hole of the lower end of the U-shaped wire clamp 4, and the upper part of the U-shaped wire clamp 4 is provided with a U-shaped wire clamp 10; the lower end of the insulating tube 7 is fixedly connected with a hanging ring 11, wherein the fixed connection can be welded or other connection methods can be adopted, the rope or belt 8 of the ratchet tensioner 3 is fixedly connected with the hanging ring 11, the body of the ratchet tensioner 3 is fixedly installed under the tee pipe 9, and the material of the insulating tube 7 is an insulating material.

[0025] Furthermore, the ratchet cable tightener is also called a cable tightener, a hand-cranked ratchet rope tightener, or a ratchet tightener.

[0026] Furthermore, the belt may be a moisture-proof aramid belt.

[0027] Furthermore, the lower end of the insulating tube 7 is threadedly connected to a tubular stopper 17, and the hanging ring 11 is fixedly connected to the tubular stopper 17; the lower end of the insulating tube 7 is provided with an external thread, and the tubular stopper 17 is provided with an internal threaded hole; the outer diameter of the insulating tube 7 is smaller than the inner diameter of the through hole in the vertical joint of the tee pipe 9 by 1-10 mm, that is, the insulating tube 7 can move up and down, and the insulating tube 7 can rotate.

[0028] like Figure 5 As shown, the tripod 1 includes a vertical rod 14, a horizontal rod 15, and an oblique support rod 16. The right end of the horizontal rod 15 is threadedly connected to the transverse joint of the tee pipe 9, and the right end of the horizontal rod 15 is provided with an external thread. The right end of the horizontal rod 15 is screwed into the internal threaded hole of the transverse joint of the tee pipe 9. The left end of the horizontal rod 15 is fixedly connected to the upper right side surface of the vertical rod 14 (such as welding), and the left side surface of the vertical rod 14 is fixedly connected with a clamp 2; the lower end of the oblique support rod 16 is fixedly connected to the lower right side surface of the vertical rod 14 (such as welding), and the upper end of the oblique support rod 16 is fixedly connected to the middle or right bottom of the horizontal rod 15 (such as welding).

[0029] like Figure 5 As shown, an upper arc stopper 13 is fixedly connected (such as welded) to the left side of the upper end of the vertical rod 14 of the tripod 1, and a lower arc stopper 12 is fixedly connected (such as welded) to the left side of the lower end of the vertical rod 14. The arc surfaces of the lower arc stopper 12 and the upper arc stopper 13 are located on the left side (the surface in contact with the pole), the lower arc stopper 12 is located below the clamp 2, and the upper arc stopper 13 is located above the clamp 2.

[0030] like Figure 6As shown, the clamp 2 includes a ratchet tensioner 18, an articulated seat 19, a hanging pin seat, and a hanging pin 20; the right end of the articulated seat 19 is fixedly connected to the left side surface of the vertical rod 14 of the tripod 1 (such as welding), the right end of the hanging pin seat is fixedly connected to the left side surface of the vertical rod 14 of the tripod 1 (such as welding), and the left end of the hanging pin seat is installed with a hanging pin 20 (the hanging pin seat and the hanging pin 20 can also be replaced by a hanging ring); the ratchet tensioner 18 is hinged to the left end of the articulated seat 19, and when in use, the hook 21 on the webbing (or tightening belt) on the ratchet tensioner 18 is hooked on the hanging pin 20 (when not in use, the hook 21 on the webbing on the ratchet tensioner 18 is detached from the hanging pin 20).

[0031] like Figure 8 As shown, a plug hole is provided in the middle of the right side of the vertical joint of the tee pipe 9, and a plurality of plug holes 22 (a plurality of 2-10 plug holes 22) are provided at the lower part of the insulating tube 7. The left part of the safety pin 6 is inserted into the plug hole of the vertical joint of the tee pipe 9. When in use, when the U-shaped wire clamp 4 is hung with a wire and lifted to a certain height, the left part of the safety pin 6 is inserted into the lower plug hole 22 of the insulating tube 7 to play a safety role and prevent the insulating tube 7 from sliding down.

[0032] like Figure 1 As shown, a safety rod 5 is hingedly connected to the upper end of the U-shaped wire clamp 4 , and the middle part of the safety rod 5 is hingedly connected to the upper end of the U-shaped wire clamp 4 .

[0033] Furthermore, the ratchet tensioner (or tensioner, hand-cranked ratchet rope tensioner, ratchet tightener) 3 is a prior art (product or patented technology), and there are products on the market. Chinese patents CN202220826977.9 (a hand-cranked tensioner), CN202121415453.2 (a constant tension tensioner for overhead wires), etc. can also be used.

[0034] Further, the ratchet tensioner (or tensioner, fastener, tightener) 18 is a prior art (product or patent technology, the structure of the tensioner is not described in detail in the present invention), and the tensioner of this embodiment adopts an existing product on the market; such as: the tensioner produced by Ningbo Jiali Machinery Co., Ltd., the tensioner of Yongkang Chihong Rigging Co., Ltd. For example: 1. Chinese patent application number: 201110227161.0 (a ratchet type binding belt safety tensioner), CN201110232540.9 (a ratchet type binding belt tensioner), CN201420505947.3 (ratchet type strap tensioner), CN202123031593.2 (a strapping belt efficient tightener), etc.

[0035] Embodiment 2: The method for using the live wire lifting device comprises the following steps: First, adjust the ratchet tensioner 3 to loosen the rope or belt 8, so that the insulating tube 7 drops to the lowest position, and then select a suitable position of the pole 200mm~300mm below the crossarm, the webbing on the ratchet tensioner 18 of the clamp 2 surrounds the pole, and the hook 21 on the webbing on the ratchet tensioner 18 is hooked on the hanging pin 20, and the webbing is retracted through the handle on the ratchet tensioner 18 to fix the clamp 2 on the pole; when fixing, pay attention to adjust the orientation so that the U-shaped wire clamp 4 is located directly below the wire to be lifted, shake the ratchet tensioner 3 to lift the insulating tube 7 so that the wire falls into the U-shaped wire clamp 4 and is in a pre-stressed state, check and confirm that the live wire lifting device is in good stress condition, untie the binding wire at the top groove of the insulator, and continue to shake the ratchet tensioner 3 to lift the wire to a suitable position, and finally insert the safety pin 6 to prevent the insulating tube 7 from accidentally falling to complete the lifting of the wire; After the insulator is replaced, first take out the safety pin 6, shake the ratchet tensioner 3 to lower the conductor into the top groove of the insulator, check and confirm that the live conductor lifting device is in good force condition, tie the wire, open the safety rod 5, and continue to shake the ratchet tensioner 3 to lower the insulating tube 7 to the lowest position to make the conductor detach from the U-shaped conductor clamp 4, finally, the hook 21 on the webbing on the ratchet tensioner 18 is detached from the hook pin 20, and the live conductor lifting device is removed.

Claims

1. A live wire lifting device, characterized in that: The utility model comprises a tripod (1), a clamp (2), a ratchet wire tensioner (3), a U-shaped wire clamp (4), an insulating tube (7), a tee tube (9) and a hanging ring (11); the lateral joint of the tee tube (9) is provided with an internal threaded hole, and the vertical joint of the tee tube (9) is provided with a through hole; the right end of the tripod (1) is threadedly connected to the lateral joint of the tee tube (9), and the left end of the tripod (1) is connected with a clamp (2) for fixing on the electric pole; the insulating tube (7) is provided with a through hole; After the upper portion passes through the through hole in the vertical joint of the three-way pipe (9), the upper end of the insulating tube (7) is threadedly connected to the lower end of the U-shaped wire clamp (4), and the upper portion of the U-shaped wire clamp (4) is provided with a U-shaped wire clamp (10); the lower end of the insulating tube (7) is fixedly connected to a hanging ring (11), the rope or belt (8) of the ratchet tensioner (3) is fixedly connected to the hanging ring (11), and the body of the ratchet tensioner (3) is fixedly installed below the three-way pipe (9).

2. The live wire lifting device according to claim 1, characterized in that: The outer diameter of the insulating tube (7) is 1-10 mm smaller than the inner diameter of the through hole in the vertical joint of the tee tube (9).

3. The live wire lifting device according to claim 1, characterized in that: The tripod (1) comprises a vertical rod (14), a horizontal rod (15) and an oblique support rod (16); the right end of the horizontal rod (15) is threadedly connected to the transverse joint of the three-way pipe (9); the left end of the horizontal rod (15) is fixedly connected to the upper right side surface of the vertical rod (14); the left side surface of the vertical rod (14) is fixedly connected to a clamp (2); the lower end of the oblique support rod (16) is fixedly connected to the lower right side surface of the vertical rod (14); the upper end of the oblique support rod (16) is fixedly connected to the middle or right lower part of the horizontal rod (15).

4. The live wire lifting device according to claim 3, characterized in that: An upper arc-shaped stopper (13) is fixedly connected to the left side surface of the upper end of the vertical rod (14) of the tripod (1), and a lower arc-shaped stopper (12) is fixedly connected to the left side surface of the lower end of the vertical rod (14); the arc-shaped surfaces of the lower arc-shaped stopper (12) and the upper arc-shaped stopper (13) are located on the left side; the lower arc-shaped stopper (12) is located below the clamp (2), and the upper arc-shaped stopper (13) is located above the clamp (2).

5. The live wire lifting device according to claim 1, characterized in that: The hoop (2) comprises a ratchet tensioner (18), an articulated seat (19), a hanging pin seat and a hanging pin (20); the right end of the articulated seat (19) is fixedly connected to the left side surface of the vertical rod (14) of the tripod (1), the right end of the hanging pin seat is fixedly connected to the left side surface of the vertical rod (14) of the tripod (1), and the left end of the hanging pin seat is equipped with a hanging pin (20); the ratchet tensioner (18) is hinged to the left end of the articulated seat (19), and when in use, a hook (21) on the webbing on the ratchet tensioner (18) is hooked on the hanging pin (20).

6. The live wire lifting device according to claim 1, characterized in that: A plug hole is provided at the middle of the right side of the vertical joint of the three-way pipe (9), a plurality of plug holes (22) are provided at the lower part of the insulating pipe (7), and the left part of the safety pin (6) is inserted into the plug hole of the vertical joint of the three-way pipe (9).

7. The method for using the live wire lifting device according to any one of claims 1 to 6, characterized in that: The following steps are involved: First, adjust the ratchet tensioner (3) to loosen the rope or belt (8) so that the insulating tube (7) is lowered to the lowest position, and then select a suitable position on the pole 200mm to 300mm below the cross arm, and the webbing on the ratchet tensioner (18) of the clamp (2) surrounds the pole, and the hook (21) on the webbing on the ratchet tensioner (18) is hooked on the hook pin (20), and the webbing is retracted by the handle on the ratchet tensioner (18), and the clamp (2) is fixed on the pole; fixation When lifting the conductor, pay attention to adjusting the position so that the U-shaped conductor clamp (4) is directly below the conductor to be lifted, shake the ratchet tensioner (3) to lift the insulating tube (7) so that the conductor falls into the U-shaped conductor clamp (4) and is in a pre-stressed state, check and confirm that the live conductor lifting device is in good stress state, untie the binding wire at the top groove of the insulator, and continue to shake the ratchet tensioner (3) to lift the conductor to a suitable position, and finally insert the safety pin (6) to prevent the insulating tube (7) from accidentally falling to complete the lifting of the conductor; After the insulator is replaced, first remove the safety pin (6), shake the ratchet tensioner (3) to lower the conductor into the top groove of the insulator, check and confirm that the live conductor lifting device is in good condition, tie the wire, open the safety rod (5), and continue to shake the ratchet tensioner (3) to lower the insulating tube (7) to the lowest position to make the conductor detach from the U-shaped conductor clamp (4). Finally, the hook (21) on the webbing on the ratchet tensioner (18) is detached from the hook pin (20), and the live conductor lifting device is removed.

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