Composite pin insulator capable of preventing lead from falling off, construction tool and construction method

Abstract

The invention relates to the technical field of cable erection construction, in particular to a composite pin insulator for preventing a wire from falling off, a construction tool and a construction method. The insulator comprises an insulator main body, a fixing seat is arranged at the bottom of the insulator main body, a mounting base is arranged at the top of the insulator main body, an elastic pressing plate is mounted on the mounting base, a bolt rod is fixedly arranged on the mounting base, and the elastic pressing plate is mounted and connected with the mounting base through the bolt rod. A fixing nut is installed on the bolt rod in a threaded mode, and the elastic pressing plate is fixedly installed on the bolt rod through the fixing nut. The insulator main body is used for installing and erecting a cable, the cable is effectively protected, the high-voltage cable is prevented from electric leakage to hurt passing personnel, the elastic pressing plate is beneficial to clamping and fixing the cable and reducing cable falling off, the bolt rod is fixed to the installation base, and compared with a traditional interaction bolt, the problem of falling off caused by factors such as vibration can be more effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of cable racking construction, and in particular to a composite pin insulator for preventing conductors from falling off, a construction tool and a construction method. Background Art

[0002] At present, the widely used support insulators on distribution overhead lines are composite pin insulators, which are used to fix and support the conductors and keep them insulated from the grounding body. The composite pin insulators are made of epoxy glass fiber rods as core rods and silicone rubber as basic insulators. The mechanical strength of epoxy glass fiber rods is quite high. The three-layer silicone rubber insulation shed has good pollution flashover resistance and will not produce cracks, breakage, glaze shedding and other common phenomena of ordinary ceramic insulators. Since the diameter of the silicone rubber insulation shed in the middle layer is smaller than that of the upper and lower layers of insulation shed, the upper and lower layers of insulation shed will not form a continuous conductive film, and will not produce leakage current thermal effect, so it is difficult to cause insulator flashover.

[0003] In the related art, the bolts on both sides of the existing composite pin insulator that fix the conductor are inserted into the conductor groove from top to bottom. Due to wind blowing, conductor shaking and other reasons, the bolts that fix the conductor often loosen or fall off. Once one or both sides of the bolts fall off, the conductor elastic pressure plate will fall off and cannot play the role of fixing and pressing the conductor. The depth of the conductor groove alone cannot ensure the long-term stability of the conductor, and it is very easy for the conductor to fall off, fall on the crossarm or hang in the air. If not handled in time, it is easy to cause line tripping, grounding and other faults, which will bring great trouble to the safe and stable operation of the distribution line. Summary of the invention

[0004] In order to solve the problem that bolts on both sides of the conductor fixing part of a composite pin insulator are easy to fall off and improve the construction efficiency of power distribution line installation, the present invention provides a composite pin insulator that prevents conductors from falling off, a construction tool and a construction method.

[0005] On the one hand, the present invention provides a composite pin insulator for preventing conductors from falling off, which adopts the following technical solution:

[0006] A composite pin insulator for preventing conductors from falling off comprises an insulator body, a fixing seat is arranged at the bottom of the insulator body, the insulator body is fixedly mounted on a power pole by means of the fixing seat and a mounting nut, a mounting base is arranged at the top of the insulator body, a cable is mounted and fixed on the insulator body by means of the mounting base, an elastic pressure plate is arranged on the mounting base, the mounting base and the elastic pressure plate are combined with each other to clamp and fix the cable, a bolt rod is fixedly arranged on the mounting base, the elastic pressure plate is installed and connected to the mounting base by means of the bolt rod, a fixing nut is threadedly mounted on the bolt rod, and the elastic pressure plate is mounted and fixed on the bolt rod by means of the fixing nut.

[0007] The insulator body is used to install and lay cables, effectively protecting the cables to prevent high-voltage cable leakage and harming passers-by. The elastic pressure plate is conducive to clamping and fixing the cables to reduce the cable from falling off. The bolt rod is fixed on the mounting base, which can more effectively resist the problem of falling off caused by factors such as vibration compared to traditional interactive bolts.

[0008] Furthermore, a mounting groove is opened at the center of the mounting base, the mounting groove is arc-shaped and matches the cross-sectional size of the cable, the cable is placed and installed in the mounting groove, and bolt rods are respectively arranged on both sides of the mounting groove, and the bolt rods are vertically welded to the mounting base.

[0009] The arc-shaped structure of the installation groove and the middle part of the elastic pressure plate is conducive to fitting the cable and clamping it, reducing the wear of the cable and improving the clamping stability.

[0010] Furthermore, the elastic pressure plate is respectively installed on the bolt rods on both sides of the mounting groove, and the elastic pressure plates on the bolt rods on both sides are arranged to partially overlap and contact each other. The elastic pressure plate is fixed to the middle position of the bolt rod by a pair of fixing nuts at the top and bottom. A spring gasket is installed between the fixing nut and the elastic pressure plate. The length of the bolt rod is 2-4 times the diameter of the cable.

[0011] The spring washer effectively reduces the loosening of the fixing nut, thereby further reducing the risk of falling off.

[0012] On the other hand, the present invention provides a composite pin insulator construction tool for preventing conductors from falling off, which adopts the following technical solution:

[0013] A composite pin-type insulator construction tool for preventing conductors from falling off, comprising an insulator clamping tool, an insulator fixing tool and a conductor installation tool;

[0014] The insulator clamping tool comprises a hand-held rod, a clamp is installed on the top of the hand-held rod, the clamp clamps the insulator body and is installed on the electric pole, the hand-held rod and the clamp are held and manipulated by human hands, the clamp is connected to the human hand through a transmission mechanism for manipulation, a positioning mechanism is provided on the hand-held rod near the clamp, the positioning mechanism cooperates with the electric pole to position the clamp to be just above the position reserved on the electric pole for installing the insulator body;

[0015] The insulator fixing tool comprises an electric rotating rod, a rotating head and a motor are installed on the top of the electric rotating rod, the rotating head is sleeved on the rotating shaft of the motor, and the electric rotating rod comprises a plurality of single short rods plugged into each other;

[0016] The conductor installation tool comprises a hand-turned rod, a fixed lock head and a movable lock head are arranged at the top of the hand-turned rod, the fixed lock head is fixedly arranged at the top of the hand-turned rod, the movable lock head is movably installed at the top of the hand-turned rod through a roller screw, the fixed lock head and the movable lock head cooperate with each other to clamp the cable and install it on the insulator body, and the hand-turned rod comprises a plurality of single short rods which are plugged into each other.

[0017] The hand-held pole makes it convenient for construction workers to lift and install cables from the ground. The clamp is used to control the clamping and installation of cables. The positioning mechanism is conducive to high-altitude positioning of cable installation positions, reducing the problem of difficulty in positioning due to manual shaking.

[0018] Furthermore, the hand-held rod includes a handle, a telescopic sleeve rod and a mounting fixture, the handle is installed at the bottom end of the telescopic sleeve rod, the mounting fixture is installed at the top end of the telescopic sleeve rod, a person holds the handle by hand, and the fixture is installed at the top end of the hand-held rod through the mounting fixture, the telescopic sleeve rod includes a multi-section prismatic sleeve rod and is sequentially socketed according to size specifications, and two adjacent and mutually socketed sleeve rods of the telescopic sleeve rod are fixedly clamped to each other at the contact end of the maximum telescopic distance.

[0019] The handle is convenient for operators to hold and lift, and the telescopic sleeve lifts the cable by telescoping, making it easy to store and use.

[0020] Furthermore, the clamp includes a fixed clamp and a telescopic clamp, the fixed clamp is fixedly installed on the top of the hand-held rod by a mounting fixture, and the telescopic clamp is telescopically installed on the inner side of the fixed clamp. The telescopic clamp is controlled by an adjusting bolt to be telescoped close to the fixed clamp and cooperate with the fixed clamp to clamp the insulator body.

[0021] The fixed clamp and the telescopic clamp can be moved closer and farther away from each other to clamp the cable, making it easy to operate.

[0022] Furthermore, the transmission mechanism includes a handwheel and a transmission rod, the handwheel is connected to each other through the transmission rod and the adjusting bolt for transmission control, the handwheel and the transmission rod are vertically meshed with each other through a bevel gear, the transmission rod and the adjusting bolt are vertically meshed with each other through a bevel gear, the transmission rod includes a multi-section prismatic sleeve rod that is sleeved in sequence, and the sleeve rod size specifications of the transmission rod expand from the middle to both sides in sequence.

[0023] The hand wheel and the transmission rod facilitate remote manual control of the clamping and releasing of the cable by the fixed clamp and the telescopic clamp, and the bevel gear enables the hand wheel and the transmission rod to reverse the transmission, which is convenient for the operator to operate.

[0024] Furthermore, the positioning mechanism includes a positioning fixture, a positioning screw and a socket block. The positioning fixture is arc-shaped and matches the cross-sectional size of the electric pole. The positioning fixture is telescopically mounted on the socket block by adjusting the positioning screw, and the socket block is rotatably sleeved on the handheld pole.

[0025] The positioning fixture is used to position in conjunction with the electric pole to simplify the positioning operation. The positioning screw is used to adjust the position of the positioning fixture to improve the positioning accuracy. The socket block allows the positioning fixture to be adjusted in the axial direction to facilitate auxiliary positioning.

[0026] On the other hand, the present invention provides a construction method for a composite pin insulator to prevent conductors from falling off, which adopts the following technical solution:

[0027] A construction method for a composite pin insulator to prevent conductors from falling off comprises the following construction steps:

[0028] The insulator body is installed on the erected electric pole, specifically, the insulator body is clamped and placed at the predetermined installation position of the cross arm of the electric pole by using the insulator clamping tool, and then the insulator fixing tool is used to rotate the installation nut to install and fix the insulator body;

[0029] Place the cable to be installed on the ground along the pole installation position, and then use the wire installation tool to install one end of the cable on the starting pole. Specifically, use the fixed lock and the movable lock to clamp the cable, and then use the hand-rotating rod to lift it onto the insulator body and place it.

[0030] The new installation method of the anti-wire-fall composite pin insulator is simpler than the traditional one. It also has good stability after installation. The installation operation can be carried out by hand-held rods, avoiding the use of large lifting equipment, simplifying construction, reducing construction costs and improving construction efficiency.

[0031] Furthermore, when the hand-held rod is in use, the hand wheel is first turned on the ground to drive the adjustable telescopic clamp to clamp the insulator body, and then the hand-held rod is pulled out in sections to extend and lengthen the hand-held rod. After the insulator body is positioned, the hand wheel is turned to drive the adjustable telescopic clamp to release the insulator body, so that the insulator body falls onto the cross arm of the pole.

[0032] The hand wheel facilitates the operator to remotely control the machine purely mechanically on the ground, making operation easier.

[0033] In summary, the present invention has the following beneficial technical effects:

[0034] 1. The insulator body is used to install and erect cables, effectively protecting the cables from leakage of high-voltage cables that injure passers-by. The elastic pressure plate is conducive to clamping and fixing the cables to reduce the risk of cable falling off. The bolt rod is fixed on the mounting base. Compared with traditional interactive bolts, it can more effectively resist the problem of falling off caused by factors such as vibration. The arc structure in the middle of the mounting groove and the elastic pressure plate is conducive to fitting the cable and clamping it, reducing the wear on the cable while improving the clamping stability. The spring gasket effectively reduces the loosening of the fixing nut, thereby further reducing the risk of falling off.

[0035] 2. The hand-held rod is convenient for construction workers to lift and install the cable from the ground. The clamp is used to control the clamping and installation of the cable. The positioning mechanism is conducive to high-altitude positioning of the cable installation position, reducing the problem of difficult positioning due to manual shaking. The handle is convenient for operators to hold and lift. The telescopic sleeve lifts the cable by telescoping, which is convenient for storage and use. The cable is clamped by moving the fixed chuck and the telescopic chuck closer and farther away from each other, which is convenient for operation. The handwheel and transmission rod facilitate remote manual control of the clamping and release of the fixed chuck and the telescopic chuck for cables. The bevel gear can make the handwheel and the transmission rod transmission reversing, which is convenient for operators to operate. The positioning fixture is used for positioning in combination with the pole to simplify the positioning operation. The positioning screw is used to adjust the position of the positioning fixture to improve the positioning accuracy. The socket block allows the positioning fixture to be adjusted in the axial direction to facilitate auxiliary positioning.

[0036] 3. The installation method of the new anti-wire-falling composite pin insulator is simpler than the traditional one. At the same time, it has good stability after installation. The installation operation is carried out by holding a pole, avoiding the use of large lifting equipment, simplifying construction, reducing construction costs and improving construction efficiency. The handwheel facilitates the operator's purely mechanical remote control on the ground, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of the present invention in construction state;

[0038] Figure 2 for Figure 1 A local enlarged schematic diagram of point A;

[0039] Figure 3 for Figure 1 A local enlarged schematic diagram of point B;

[0040] Figure 4 It is a schematic diagram of the full cross-section structure of the center plane of the insulator clamping tool of the present invention;

[0041] Figure 5 for Figure 4 A partial enlarged schematic diagram of point C.

[0042] Description of reference numerals:

[0043] 1. Insulator body, 2. Fixing seat, 21. Mounting nut, 3. Mounting base, 4. Mounting groove, 5. Bolt rod, 6. Elastic pressure plate, 7. Fixing nut, 8. Spring washer;

[0044] 10. Hand-held rod, 101. Handle, 102. Telescopic sleeve rod, 103. Mounting fixture, 20. Fixture, 201. Fixed chuck, 202. Telescopic chuck, 203. Adjusting bolt, 30. Transmission mechanism, 301. Hand wheel, 302. Transmission rod, 303. Bevel gear, 40. Positioning mechanism, 401. Positioning fixture, 402. Positioning screw, 403. Socket block;

[0045] 100, electric rotating rod, 200, rotating head, 300, electric motor, 400, hand rotating rod, 500, fixed lock, 600, movable lock. DETAILED DESCRIPTION

[0046] The following will be combined with the attached Figure 1-Figure 5 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] Embodiment 1:

[0049] The embodiment of the present invention discloses a composite pin insulator for preventing conductor from falling off, referring to Figure 1 and Figure 2 , comprising an insulator body 1, a fixing seat 2 is provided at the bottom of the insulator body 1, the insulator body 1 is fixedly mounted on the electric pole through the fixing seat 2 and the mounting nut 21, and a mounting base 3 is provided at the top of the insulator body 1, and the insulator body 1 uses the mounting base 3 to mount and fix the cable;

[0050] An elastic pressure plate 6 is installed on the mounting base 3, and the mounting base 3 and the elastic pressure plate 6 are combined with each other to clamp and fix the cable. A bolt rod 5 is fixedly provided on the mounting base 3, and the elastic pressure plate 6 is installed and connected to the mounting base 3 through the bolt rod 5. A fixing nut 7 is threadedly installed on the bolt rod 5, and the elastic pressure plate 6 is installed and fixed on the bolt rod 5 by using the fixing nut 7.

[0051] During installation, the insulator body 1 is installed on the cross arm of the pole through the fixing seat 2 and the mounting nut 21. The mounting base 3 and the bolt rod 5 are pre-installed on the insulator body 1. After the cable installation is completed, the cable is limited and fixed by using the elastic pressure plate 6 and the fixing nut 7.

[0052] Reference Figure 2 A mounting groove 4 is provided at the center of the mounting base 3. The mounting groove 4 is arc-shaped and matches the cross-sectional size of the cable. The cable is placed and installed in the mounting groove 4. Bolt rods 5 are respectively arranged on both sides of the mounting groove 4, and the bolt rods 5 are vertically welded to the mounting base 3.

[0053] Both sides of the installation groove 4 are rounded to reduce damage to the cable.

[0054] When the cable is placed, the elastic pressing plate 6 is bent to allow the cable to be placed in, and then the elastic pressing plate 6 elastically rebounds.

[0055] Reference Figure 2 The elastic pressure plate 6 is respectively installed on the bolt rods 5 on both sides of the installation groove 4, and the elastic pressure plates 6 on the bolt rods 5 on both sides are partially overlapped and contacted with each other. The elastic pressure plate 6 is fixed to the middle position of the bolt rod 5 by a pair of fixing nuts 7 above and below. A spring gasket 8 is installed between the fixing nut 7 and the elastic pressure plate 6. The length of the bolt rod 5 is 2-4 times the diameter of the cable.

[0056] When installing the fixing nut 7, use a torque wrench to tighten it with a fixed torque.

[0057] Embodiment 2:

[0058] The embodiment of the present invention discloses a composite pin insulator construction tool for preventing conductor from falling off, referring to Figure 1-Figure 3 , including insulator clamping tools, insulator fixing tools and conductor installation tools;

[0059] The insulator clamping tool comprises a hand-held rod 10, a clamp 20 is installed on the top of the hand-held rod 10, the clamp 20 clamps the insulator body 1 and is installed on the electric pole, the hand-held rod 10 and the clamp 20 are held and manipulated by human hands, the clamp 20 is connected to the human hand through a transmission mechanism 30 for transmission and manipulation, and a positioning mechanism 40 is provided on the hand-held rod 10 near the clamp 20, the positioning mechanism 40 cooperates with the electric pole to position the clamp 20 to be just above the position reserved on the electric pole for installing the insulator body 1;

[0060] The insulator fixing tool comprises an electric rotating rod 100, a rotating head 200 and a motor 300 are installed on the top of the electric rotating rod 100, the rotating head 200 is sleeved on the rotating shaft of the motor 300, and the electric rotating rod 100 comprises a plurality of single short rods plugged into each other;

[0061] The conductor installation tool includes a hand-rotating rod 400, and a fixed lock head 500 and a movable lock head 600 are arranged at the top of the hand-rotating rod 400. The fixed lock head 500 is fixedly arranged at the top of the hand-rotating rod 400, and the movable lock head 600 is movably installed at the top of the hand-rotating rod 400 through a roller screw. The fixed lock head 500 and the movable lock head 600 cooperate with each other to clamp the cable and install it on the insulator body 1. The hand-rotating rod 400 includes a plurality of single short rods that are plugged into each other.

[0062] One end of the rotating head 200 is a hexagonal nut blind hole, and the other end is a square blind hole. The square blind hole is used to connect the rotating shaft head of the motor 300.

[0063] Reference Figure 1 , Figure 2 and Figure 4 The hand-held rod 10 includes a handle 101, a telescopic sleeve rod 102 and a mounting fixture 103. The handle 101 is installed at the bottom end of the telescopic sleeve rod 102, and the mounting fixture 103 is installed at the top of the telescopic sleeve rod 102. A person holds the handle 101 by hand, and the clamp 20 is installed at the top of the hand-held rod 10 through the mounting fixture 103. The telescopic sleeve rod 102 includes a multi-section prismatic sleeve rod and is sequentially sleeved according to size specifications. Two adjacent and mutually sleeved sleeve rods of the telescopic sleeve rod 102 are fixedly clamped to each other at the contact end of the maximum telescopic distance.

[0064] Reference Figure 2 , Figure 4 and Figure 5 The clamp 20 includes a fixed clamp 201 and a telescopic clamp 202. The fixed clamp 201 is fixedly installed on the top of the hand-held rod 10 through the installation fixture 103. The telescopic clamp 202 is telescopically installed on the inner side of the fixed clamp 201. The telescopic clamp 202 is controlled by the adjusting bolt 203 to be close to the fixed clamp 201 and cooperate with the fixed clamp 201 to clamp the insulator body 1.

[0065] The fixed clamp 201 and the telescopic clamp 202 are provided with anti-slip pads on their surfaces facing the clamping insulator body 1 .

[0066] The adjusting bolt 203 is divided into a threaded rotating part and a telescopic prism part. The threaded rotating part and the telescopic prism part are sleeved with each other. The telescopic prism part drives the threaded rotating part to rotate. When the threaded rotating part moves linearly, the telescopic prism part does not move and telescopes relative to the threaded rotating part.

[0067] Reference Figure 4 and Figure 5The transmission mechanism 30 includes a hand wheel 301 and a transmission rod 302. The hand wheel 301 is connected to each other through the transmission rod 302 and the adjusting bolt 203 for transmission control. The hand wheel 301 and the transmission rod 302 are vertically meshed and connected through a bevel gear 303. The transmission rod 302 and the adjusting bolt 203 are vertically meshed and connected through a bevel gear 303. The transmission rod 302 includes a multi-section prismatic sleeve rod that is sleeved in sequence. The sleeve rod size of the transmission rod 302 increases from the middle to both sides.

[0068] The two ends of the transmission rod 302 are held at the center of the telescopic sleeve rod 102 by bearing frames.

[0069] Reference Figure 4 The positioning mechanism 40 includes a positioning fixture 401, a positioning screw 402 and a socket block 403. The positioning fixture 401 is arc-shaped and matches the cross-sectional size of the electric pole. The positioning fixture 401 is telescopically mounted on the socket block 403 through the positioning screw 402, and the socket block 403 is rotatably mounted on the hand-held pole 10.

[0070] A pulley is provided on the contact surface of the positioning fixture 401 with the electric pole, and the pulley facilitates the positioning fixture 401 to move up and down along the electric pole, which is conducive to using the positioning fixture 401 to assist in lifting the insulator body 1.

[0071] Embodiment 3:

[0072] The embodiment of the present invention discloses a construction method of a composite pin insulator to prevent conductor from falling off, referring to Figure 1 and Figure 2 , including the following construction steps:

[0073] The insulator body 1 is installed on the erected electric pole, specifically, the insulator body 1 is clamped and placed at the predetermined installation position of the cross arm of the electric pole using an insulator clamping tool, and then the insulator body 1 is installed and fixed by rotating the installation nut 21 using the insulator fixing tool;

[0074] The cable to be installed is placed on the ground along the installation position of the electric pole, and then one end of the cable is installed on the starting electric pole using a conductor installation tool. Specifically, the cable is clamped using a fixed lock 500 and a movable lock 600, and then lifted onto the insulator body 1 using a hand-rotating rod 400 and placed.

[0075] Reference Figure 1 , Figure 4 and Figure 5When the hand-held rod 10 is in use, the hand wheel 301 is first turned on the ground to drive the adjustable telescopic clamp 202 to clamp the insulator body 1, and then the hand-held rod 10 is pulled out in sections to extend and lengthen the hand-held rod 10. After the insulator body 1 is positioned, the hand wheel 301 is turned to drive the adjustable telescopic clamp 202 to release the insulator body 1, so that the insulator body 1 falls onto the cross arm of the pole.

[0076] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A composite pin insulator for preventing conductors from falling off, comprising an insulator body (1), characterized in that: The insulator body (1) is provided with a fixing seat (2) at the bottom, and the insulator body (1) is fixedly mounted on a power pole by means of the fixing seat (2) and the mounting nut (21); the insulator body (1) is provided with a mounting base (3) at the top, and the insulator body (1) is mounted and fixed with a cable by means of the mounting base (3); An elastic pressure plate (6) is installed on the mounting base (3), and the mounting base (3) and the elastic pressure plate (6) are combined with each other to clamp and fix the cable. A bolt rod (5) is fixedly arranged on the mounting base (3), and the elastic pressure plate (6) is installed and connected to the mounting base (3) through the bolt rod (5). A fixing nut (7) is threadedly installed on the bolt rod (5), and the elastic pressure plate (6) is installed and fixed on the bolt rod (5) by using the fixing nut (7).

2. The composite pin insulator for preventing conductor from falling off according to claim 1, characterized in that: A mounting groove (4) is provided at the center of the mounting base (3); the mounting groove (4) is arc-shaped and matches the cross-sectional size of the cable; the cable is placed and installed in the mounting groove (4); bolt rods (5) are respectively arranged on both sides of the mounting groove (4); and the bolt rods (5) are vertically welded to the mounting base (3).

3. The composite pin insulator for preventing conductor from falling off according to claim 2, characterized in that: The elastic pressure plate (6) is respectively mounted on the bolt rods (5) on both sides of the mounting groove (4), and the elastic pressure plates (6) on the bolt rods (5) on both sides are arranged to partially overlap and contact each other. The elastic pressure plate (6) is fixed to the middle position of the bolt rod (5) by a pair of fixing nuts (7) at the top and bottom. A spring gasket (8) is installed between the fixing nuts (7) and the elastic pressure plate (6). The length of the bolt rod (5) is 2-4 times the diameter of the cable.

4. A composite pin insulator construction tool for preventing conductors from falling off, characterized in that: Including insulator clamping tools, insulator fixing tools and conductor installation tools; The insulator clamping tool comprises a hand-held rod (10), a clamp (20) is installed on the top of the hand-held rod (10), the clamp (20) clamps the insulator body (1) and is installed on the electric pole, the hand-held rod (10) and the clamp (20) are held and manipulated by human hands, the clamp (20) is connected to the human hands through a transmission mechanism (30) for manipulation, a positioning mechanism (40) is provided on the hand-held rod (10) near the clamp (20), the positioning mechanism (40) cooperates with the electric pole to position the clamp (20) to be directly above the position reserved on the electric pole for installing the insulator body (1); The insulator fixing tool comprises an electric rotating rod (100), a rotating head (200) and a motor (300) are mounted on the top of the electric rotating rod (100), the rotating head (200) is sleeved on the rotating shaft of the motor (300), and the electric rotating rod (100) comprises a plurality of single short rods plugged into each other; The conductor installation tool comprises a hand-rotating rod (400), a fixed lock head (500) and a movable lock head (600) are arranged at the top of the hand-rotating rod (400), the fixed lock head (500) is fixedly arranged at the top of the hand-rotating rod (400), the movable lock head (600) is movably installed at the top of the hand-rotating rod (400) through a roller screw, the fixed lock head (500) and the movable lock head (600) cooperate with each other to clamp the cable and install it on the insulator body (1), and the hand-rotating rod (400) comprises a plurality of single short rods that are plugged into each other.

5. The construction tool for preventing conductor from falling off according to claim 4 is characterized in that: The hand-held rod (10) comprises a handle (101), a telescopic sleeve rod (102) and a mounting fixture (103); the handle (101) is mounted on the bottom end of the telescopic sleeve rod (102); the mounting fixture (103) is mounted on the top end of the telescopic sleeve rod (102); a person holds the handle (101) by hand; the clamp (20) is mounted on the top end of the hand-held rod (10) through the mounting fixture (103); the telescopic sleeve rod (102) comprises a plurality of prismatic sleeve rods which are sleeved in sequence according to size specifications; two adjacent sleeve rods of the telescopic sleeve rod (102) which are sleeved with each other are fixedly clamped with each other at the contact ends at the maximum telescopic distance.

6. The construction tool for preventing conductor from falling off according to claim 5, characterized in that: The clamp (20) comprises a fixed clamp (201) and a telescopic clamp (202); the fixed clamp (201) is fixedly mounted on the top of the hand-held rod (10) via a mounting fixture (103); the telescopic clamp (202) is telescopically mounted inside the fixed clamp (201); the telescopic clamp (202) is controlled to telescope close to the fixed clamp (201) via an adjusting bolt (203) and cooperates with the fixed clamp (201) to clamp the insulator body (1).

7. The construction tool for preventing conductor from falling off according to claim 6, characterized in that: The transmission mechanism (30) comprises a hand wheel (301) and a transmission rod (302); the hand wheel (301) is connected to each other in a transmission control manner via the transmission rod (302) and the adjusting bolt (203); the hand wheel (301) and the transmission rod (302) are vertically meshed and connected via a bevel gear (303); the transmission rod (302) and the adjusting bolt (203) are vertically meshed and connected via a bevel gear (303); the transmission rod (302) comprises a plurality of prismatic sleeve rods which are sleeved in sequence; and the sleeve rod size of the transmission rod (302) increases in sequence from the middle to both sides.

8. A composite pin insulator construction tool for preventing conductor from falling off according to any one of claims 4 to 7, characterized in that: The positioning mechanism (40) comprises a positioning fixture (401), a positioning screw (402) and a sleeve block (403); the positioning fixture (401) is arc-shaped and matches the cross-sectional size of the electric pole; the positioning fixture (401) is telescopically mounted on the sleeve block (403) by adjusting the positioning screw (402); and the sleeve block (403) is rotatably sleeved on the hand-held pole (10).

9. A construction method for composite pin insulators to prevent conductors from falling off, characterized in that: The construction steps include: The insulator body (1) is installed on the erected electric pole, specifically, the insulator body (1) is clamped and placed at a predetermined installation position of the cross arm of the electric pole using an insulator clamping tool, and then the insulator body (1) is installed and fixed by rotating the installation nut (21) using the insulator fixing tool; The cable to be installed is placed on the ground along the installation position of the electric pole, and then one end of the cable is installed on the starting electric pole using a conductor installation tool. Specifically, the cable is clamped using a fixed lock head (500) and a movable lock head (600), and then lifted onto the insulator body (1) using a hand-rotating rod (400) and then placed.

10. The construction method of a composite pin insulator for preventing conductor from falling off according to claim 9, characterized in that: When the hand-held rod (10) is used, the hand wheel (301) is first rotated on the ground to drive the adjustable telescopic clamp (202) to clamp the insulator body (1), and then the hand-held rod (10) is pulled out in sections to extend and lengthen the hand-held rod (10). After the insulator body (1) is positioned, the hand wheel (301) is rotated to drive the adjustable telescopic clamp (202) to release the insulator body (1), so that the insulator body (1) falls onto the cross arm of the electric pole.

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