A self-adaptive positioning insulator clamping device with upper and lower split insulation covers

Abstract

The application discloses a kind of upper and lower split body insulating cover self-adapting positioning insulator live clamping device, belong to distribution line live working technical field, a kind of upper and lower split body insulating cover self-adapting positioning insulator live clamping device, including insulator body and the wire of erection in its top line groove, further include: fixed component, including the half clamp of opposite setting in the top of two half clamps of insulator body both sides, and two semicircular clamps are installed in the top of half clamp, the clearance for the wire is formed between two half clamps, and the screw and nut of compatible are set on the mounting lug of two half clamps;Split type insulating cover, including the upper cover body and lower cover body that can be relatively opened and closed;It can realize automatically wire locking in the top line groove of insulator, without operating personnel in high altitude bare-handed winding, binding and other delicate operation, avoid the quality problem of artificial binding tightness.

Description

Technical Field

[0001] This invention relates to the field of live-line working technology for power distribution lines, and more specifically, to a live-line clamping device for an insulator with an adaptive positioning system featuring an upper and lower split insulating cover. Background Technology

[0002] In overhead power distribution lines, conductors are usually supported on towers by insulators. The reliable fixing of conductors to insulators is a key link to ensure the safe operation of the line. The top of the insulator has a groove, and the conductors need to be embedded in the groove and fixed during the erection to prevent the conductors from shifting due to wind swaying, gravity sagging or external impact, and to ensure the electrical and mechanical reliability of the line. At present, the fixing of conductors in the groove at the top of the insulator mainly relies on manual operation, that is, the workers carry binding wires to climb up and work, and manually bind and fix the conductors in the groove in the high-altitude environment.

[0003] However, workers must perform a series of delicate actions such as winding, tightening, and knotting within the narrow space of the insulator. Due to the need to wear thick insulating gloves, finger dexterity is greatly restricted, making the operation extremely inconvenient. Not only is each operation time-consuming and inefficient, but the tightness of the binding also depends entirely on personal experience, making it difficult to guarantee consistent quality. Problems such as loose binding leading to wire detachment or over-tight binding damaging the wire insulation layer are prone to occur. At the same time, the workers' hands and tools must be close to the live wires and insulators, making it difficult to reliably maintain a safe distance between the human body and the high-voltage live conductors. There is a risk of single-phase grounding or phase-to-phase short circuit, posing a serious threat to personal safety. Summary of the Invention

[0004] To address the problems existing in the prior art, the purpose of this invention is to provide an adaptive positioning insulator clamping device with upper and lower split insulating covers, which can automatically lock the conductor in the top groove of the insulator, eliminating the need for operators to perform delicate operations such as winding and binding by hand at height, and avoiding the quality problem of inconsistent tightness in manual binding.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A live-line clamping device for an insulator with an adaptive positioning system featuring upper and lower split insulating covers includes an insulator body and a conductor mounted in a groove on its top, and further includes: The fixing assembly includes half clamps disposed opposite to each other on both sides of the top end of the insulator body, and two semi-circular clamps installed on the top of the half clamps. A gap is formed between the two half clamps to allow the conductor to pass through. Each of the mounting ears of the two half clamps is provided with a matching screw and nut. The split-type insulating cover includes an upper cover and a lower cover that can be opened and closed relative to each other. The lower cover is laterally inserted between the bottom end of the insulator body and the top of the outer crossarm, and the upper cover is fitted from top to bottom onto the top of the insulator body. A clamping drive assembly is disposed within the upper cover and is used to push the two half clamps and the semicircular clamps thereon along the closing direction so that they hug the top of the insulator body. A tightening assembly, located on the upper cover, is used to screw the screws on the two semi-clamp mounting ears into the nuts, thereby locking the conductor to the top of the insulator body.

[0007] Furthermore, the tightening assembly includes a top plate fixedly installed on both sides of the upper cover, a support plate fixedly installed on the top of the top plate, a sleeve rotatably installed on one side of the support plate, a screw threaded on the support plate, a square sliding part provided at one end of the screw, the square sliding part being axially slidably installed in the inner cavity of the sleeve, an overload protection assembly provided at the other end of the screw, a one-way bearing provided on the other side of the overload protection assembly, the inner ring of the one-way bearing being installed with the overload protection assembly, and a screwdriver head being installed on the outer ring of the one-way bearing; The upper cover has a positioning groove that matches the insulator body, the half clamp and the semi-circular clamp. The upper cover has an opening for the movement of the tightening assembly. The output end of the screwdriver head is positioned facing the head of the screw.

[0008] Furthermore, the clamping drive assembly includes a circular plate rotatably mounted on the outer wall of the screwdriver head. A movable plate sleeved on the outer wall of the screwdriver head is provided on one side of the circular plate. An elastic cylinder is fixedly installed between the movable plate and the circular plate. Push plates are contacted on the opposite sides of the two semi-clamps. Both push plates are slidably installed in the inner cavity of the positioning groove. A return spring is fixedly installed between the two push plates and the inner wall of the positioning groove. An opening adapted to the screwdriver head is provided on the push plate.

[0009] Furthermore, the overload protection component includes a fixing plate fixedly installed on the outer wall of the screw, a sleeve plate slidably installed on the outer end of the screw, a disc spring installed between the sleeve plate and the fixing plate, a sleeve sleeved on the outer wall of the fixing plate and the sleeve plate, the sleeve being fixedly installed on the inner ring of the one-way bearing, the sleeve being sleeved on the rod wall of the screw, steel balls being evenly rolled on one side wall of the sleeve plate, and a ball groove adapted to the steel balls being formed on the inner wall of the sleeve.

[0010] Furthermore, a worm gear is fixedly installed at the end of the sleeve away from the adjacent support plate, a worm is engaged at the bottom of the worm gear, the worm is rotatably installed with the top plate, and a small stepper motor is fixedly installed on one side of the top plate, with the output shaft of the small stepper motor fixedly installed with the worm.

[0011] Furthermore, a base is fixedly installed on one side of the lower cover, a threaded rod is rotatably installed on the top of the base, the top plate located on the upper side of the base is threadedly installed with the threaded rod, and the top plate is vertically slidably installed with the base, a small motor is fixedly installed in the inner cavity of the base, the output shaft of the small motor is fixedly installed with the threaded rod, and a telescopic rod is fixedly installed at the bottom of the base.

[0012] Furthermore, the elastic force of the elastic cylinder is greater than the elastic force of the return spring.

[0013] Furthermore, a guide rod is fixedly installed on each of the semicircular clamps, and the other end of the guide rod passes through the other set of semicircular clamps and slides with it.

[0014] Furthermore, a pin is uniformly fixedly installed on the top side of the lower cover away from its opening, and a slot adapted to the pin is provided at the bottom of the upper cover.

[0015] Furthermore, the inner wall of the opening side of the lower cover is sloped, and a magnet is fixedly installed at the bottom of the lower cover, which is magnetically attracted to the top of the outer crossbeam.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention uses the self-adaptive positioning of the split insulating cover, drives the screwdriver head to rotate and extend along the axis through the tightening mechanism to screw the screw into the nut, and locks the wire to the top of the insulator through the cooperation of the half clamp and the half round clamp. This eliminates the need for operators to perform fine operations such as winding and binding by hand at high altitudes, greatly shortening the time of a single operation. Moreover, the tightening torque is controlled by the mechanical mechanism, avoiding the quality problem of inconsistent tightness in manual binding.

[0017] (2) During the screwdriver head extension process, the present invention pushes the push plate through the movable plate to make the two half clamps first close and contact each other in the middle, so that the semi-circular clamp hugs the outside of the conductor and the half clamp hugs the top of the insulator, forming a preliminary positioning before the screw is tightened. This avoids the problem that the screw and nut cannot be aligned due to the excessive gap between the half clamps, and ensures the installation accuracy.

[0018] (3) By setting an overload protection component consisting of a disc spring, steel ball and ball groove in the transmission chain, when the screwdriver head can no longer rotate after the screw is tightened to the end, the steel ball slides out of the ball groove and spins on the inner wall of the sleeve, automatically cutting off the transmission of rotational torque, effectively preventing the screw from stripping, the nut from being damaged or the motor from overheating and burning out due to stalling, thus ensuring the safety and reliability of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 This is an overall sectional view of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of the structure of section A in the middle; Figure 4 This is a schematic diagram of a single assembly of the clamping drive assembly and the tightening assembly of the present invention; Figure 5 For the present invention Figure 4 A sectional view; Figure 6 For the present invention Figure 5 Enlarged view of the structure of section B in the middle; Figure 7 This is a bottom view of the upper cover of the present invention; Figure 8 This is a schematic diagram of the structure of the lower cover of the present invention.

[0020] Explanation of the labels in the diagram: 1. Insulator body; 101. Conductor; 102. Upper cover; 103. Guide groove; 104. Lower cover; 105. Movable opening; 106. Positioning groove; 107. Magnet block; 110. Base; 111. Top plate; 112. Threaded rod; 113. Small motor; 114. Telescopic rod; 2. Support plate; 201. Sleeve; 202. Screw; 203. Sleeve; 204. One-way bearing; 205. Screwdriver head; 206. Half clamp; 207. Semi-circular clamp; 208. Screw; 209. Nut; 210. Fixing plate; 211. Sleeve plate; 212. Disc spring; 213. Steel ball; 214. Ball groove; 3. Return spring; 301. Push plate; 302. Through port; 303. Round plate; 304. Movable plate; 305. Elastic cylinder; 4. Worm gear; 401. Worm; 402. Miniature stepper motor; 5. Guide rod; 6. Pin rod; 601. Slot. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1 to 8 A live clamping device for an insulator with an adaptive positioning system of upper and lower split insulating covers includes an insulator body 1 and a conductor 101 mounted in a groove on its top, and further includes: The fixing assembly includes half clamps 206 disposed opposite to each other on the top two sides of the insulator body 1, and two semi-circular clamps 207 installed on the top of the half clamps 206. A gap is formed between the two half clamps 206 for the conductor 101 to pass through. Each of the mounting ears of the two half clamps 206 is provided with a matching screw 208 and nut 209. The split-type insulating cover includes an upper cover 102 and a lower cover 104 that can be opened and closed relative to each other. The lower cover 104 is laterally inserted between the bottom end of the insulator body 1 and the top of the outer crossarm, and the upper cover 102 is fitted from top to bottom onto the top of the insulator body 1. The clamping drive assembly is located inside the upper cover 102 and is used to push the two half clamps 206 and the semicircular clamps 207 on them in the closing direction so that they hug the top of the insulator body 1. The tightening assembly, located on the upper cover 102, is used to screw the screws 208 on the mounting ears of the two half clamps 206 into the nuts 209, thereby locking the conductor 101 to the top of the insulator body 1.

[0023] The tightening assembly includes a top plate 111 fixedly installed on both sides of the upper cover 102. A support plate 2 is fixedly installed on the top of the top plate 111. A sleeve 201 is rotatably installed on one side of the support plate 2. A screw 202 is threaded on the support plate 2. One end of the screw 202 is provided with a square sliding part, which is axially slidably installed in the inner cavity of the sleeve 201. The other end of the screw 202 is provided with an overload protection assembly. A one-way bearing 204 is provided on the other side of the overload protection assembly. The inner ring of the one-way bearing 204 is installed with the overload protection assembly. A screwdriver head 205 is installed on the outer ring of the one-way bearing 204. The upper cover 102 has a positioning groove 106 that is adapted to the insulator body 1, the half clamp 206 and the semi-circular clamp 207. The upper cover 102 has an active opening 105 for moving the tightening assembly. The output end of the screwdriver head 205 is set towards the head of the screw 208.

[0024] By adopting the above technical solution, when the sleeve 201 rotates, it will drive the screw 202 inside to rotate synchronously. The screw 202 will drive the overload protection component to rotate and move towards the upward cover 102. At the same time, the rotation of the overload protection component will drive the inner ring of the one-way bearing 204 to rotate. At this time, the inner ring rotates and locks to transmit rotational power, thereby driving the outer ring to rotate synchronously. At the same time, the rotation of the outer ring will drive the screwdriver head 205 to rotate synchronously and move towards the screw 208. At this time, the screwdriver head 205 rotates and moves axially at the same time, gradually contacting the screw 208 and... The screw is inserted into the thread groove at one end of the screw 208. At this time, the screwdriver head 205 rotates and drives the screw 208 to rotate synchronously, tightening it into the nut 209. This achieves the closure of the two sets of semi-clamps 206 and semi-circular clamps 207. The two sets of semi-circular clamps 207 will contact and restrict the conductor 101 within them. The two sets of semi-clamps 206 will fix it to the top of the insulator body 1, thus fixing the conductor 101 to the insulator body 1. This replaces the traditional manual binding method and achieves automated fixing of the conductor 101 to the insulator, effectively solving the problems of low efficiency and poor binding quality of manual binding. When the screwdriver bit 205 is tightened onto the screw 208, and it is necessary to remove the screwdriver bit 205 from the thread groove at one end of the screw 208, the control sleeve 201 can drive the screw rod 202 to reverse. The screw rod 202 will rotate and move away from the upper cover 102. The overload protection component will drive the inner ring of the one-way bearing 204 to reverse. During the reversal, the power is automatically cut off, allowing it to idle without driving the outer ring to rotate. At this time, the screwdriver bit 205 will not rotate, and it will be directly moved out of the thread groove at one end of the screw 208. This ensures that the screw 208, which has been tightened during the retraction process, will not loosen with the reversal, thus ensuring the long-term reliability of the wire 101 and avoiding the safety hazard caused by the screw 208 loosening due to the retraction.

[0025] like Figure 4 and Figure 6 As shown, the clamping drive assembly includes a circular plate 303 rotatably mounted on the outer wall of the screwdriver head 205. A movable plate 304 is provided on one side of the circular plate 303 and sleeved on the outer wall of the screwdriver head 205. An elastic cylinder 305 is fixedly installed between the movable plate 304 and the circular plate 303. Push plates 301 are provided in contact with the opposite sides of the two half clamps 206. The two push plates 301 are slidably installed in the inner cavity of the positioning groove 106. A return spring 3 is fixedly installed between the two push plates 301 and the inner cavity wall of the positioning groove 106. The push plates 301 are provided with a through-hole 302 that is adapted to the screwdriver head 205.

[0026] By adopting the above technical solution, while the screw 202 rotates and drives the screwdriver head 205 to rotate and extend, the screwdriver head 205 will drive the circular plate 303, the elastic cylinder 305, and the movable plate 304 to move synchronously. At this time, the output end of the screwdriver head 205 will first move into the through-hole 302 and move towards the screw 208. When the output end of the screwdriver head 205 is about to contact the screw 208, the movable plate 304 will first contact the side wall of the push plate 301. At this time, the screwdriver head 205 continues to rotate and move axially. The elastic cylinder 305 will push the push plate 301 towards the insulator body 1 through the movable plate 304. As the push plate 301 moves, it stretches the return spring 3. At this time, the push plates 301 on both sides push the two half clamps 206 to move closer to each other and move out of the inner cavity of the positioning groove 106. Finally, the two half clamps 206 are in contact and sleeved in the top groove of the insulator body 1. At the same time, the two sets of semicircular clamps 207 are in contact and sleeved on the outer wall of the conductor 101. Thus, a preliminary positioning is formed between the two half clamps 206 and the conductor 101, providing an accurate alignment basis for the subsequent tightening of the screw 208. This avoids the problem that the screw 208 and nut 209 cannot be aligned due to the excessive spacing of the half clamps 206, and ensures the installation accuracy. At this point, if the screwdriver head 205 continues to rotate and extend axially, it can no longer push the push plate 301 and the half clamp 206 to move. This will cause the movable plate 304 to compress the elastic cylinder 305 by a corresponding distance. As the circular plate 303 rotates with the screwdriver head 205, the movable plate 304 is fitted onto the outer wall of the screwdriver head 205. When the movable plate 304 contacts the surface of the push plate 301 and is compressed, it will not affect the rotation of the screwdriver head 205. Subsequently, the screwdriver head 205 will be inserted into the thread groove at one end of the screw 208 and the screw 208 will be tightened into the nut 209, thereby securing the conductor 101 to the top of the insulator body 1. The two actions of pre-closing the half clamp 206 and tightening the screw 208 are completed sequentially through the continuous rotation of the same screw 202, ensuring the timing coordination of the clamping and tightening actions.

[0027] like Figure 4 and Figure 6 As shown, the overload protection assembly includes a fixing plate 210 fixedly installed on the outer wall of the screw 202, a sleeve plate 211 axially slidably installed on the outer end of the screw 202, a disc spring 212 installed between the sleeve plate 211 and the fixing plate 210, a sleeve 203 sleeved on the outer wall of the fixing plate 210 and the sleeve plate 211, the sleeve 203 fixedly installed on the inner ring of the one-way bearing 204, the sleeve 203 sleeved on the rod wall of the screw 202, steel balls 213 evenly rolled on one side wall of the sleeve plate 211, and a ball groove 214 adapted to the steel balls 213 is opened on the inner wall of the sleeve 203.

[0028] By adopting the above technical solution, the screw 202 rotates and drives the fixing plate 210 and the sleeve plate 211 to rotate synchronously. The elastic force of the disc spring 212 abuts the sleeve plate 211 against the inner wall of the sleeve 203, and the steel ball 213 is inserted into the ball groove 214. This allows the sleeve plate 211 to rotate and drive the sleeve 203 to rotate synchronously, ensuring that the power can be effectively transmitted to the screwdriver head 205 during normal tightening, and ensuring that the screw 208 is reliably screwed in. When the screwdriver head 205 tightens the screw 208, the screwdriver head 205 can no longer rotate, thus preventing the sleeve 203 from rotating. The continued rotation of the sleeve plate 211 will cause the steel ball 213 to move out of the ball groove 214 and move on the inner wall of the sleeve 203. When the steel ball 213 moves out of the ball groove 214, it will push the sleeve plate 211 to move axially on the rod wall of the screw 202 and squeeze the disc spring 212. At this time, it can be idling, so that the transmission of rotational torque is automatically cut off after the screw 208 is tightened to the end. This effectively prevents the screw 208 from stripping, the nut 209 from being damaged, or the insulation layer of the wire 101 from being crushed due to over-tightening. At the same time, it avoids the motor from stalling and overheating, ensuring the safety and reliability of the equipment.

[0029] like Figure 1 As shown, a worm gear 4 is fixedly installed at the end of the sleeve 201 away from the adjacent support plate 2. A worm 401 is meshed with the bottom of the worm gear 4. The worm 401 is rotatably installed with the top plate 111. A small stepper motor 402 is fixedly installed on one side of the top plate 111. The output shaft of the small stepper motor 402 is fixedly installed with the worm 401.

[0030] By adopting the above technical solution, the small stepper motor 402 is turned on, and the output end of the small stepper motor 402 drives the worm 401 to rotate. At the same time, the rotation of the worm 401 drives the worm wheel 4 to rotate, and the rotation of the worm wheel 4 drives the sleeve 201 to rotate synchronously. Through the reversing transmission between the worm wheel 4 and the worm 401, the power direction of the small stepper motor 402 can be reversed, which changes the flexible installation method of the small stepper motor 402 and avoids spatial interference with the wire 101, crossarm and other structures, making the entire tool structure more compact and more suitable for high-altitude and narrow live working environments.

[0031] like Figure 1 As shown, a base 110 is fixedly installed on one side of the lower cover 104. A threaded rod 112 is rotatably installed on the top of the base 110. The top plate 111 located on the upper side of the base 110 is threadedly installed with the threaded rod 112, and the top plate 111 and the base 110 are vertically slidably installed. A small motor 113 is fixedly installed in the inner cavity of the base 110. The output shaft of the small motor 113 is fixedly installed with the threaded rod 112. A telescopic rod 114 is fixedly installed at the bottom of the base 110.

[0032] By adopting the above technical solution, the device is extended upward to one side of the insulator body 1 via the telescopic rod 114. First, the lower cover 104 is inserted from one side between the bottom end of the insulator body 1 and the outer crossarm through the opening side. When the lower cover 104 is completely fitted onto the outer wall of the insulator body 1, the device is in a vertical state. Initially, the upper cover 102 should be located on the upper side of the insulator body 1. The small motor 113 is then turned on, and its output shaft drives the threaded rod 112 to rotate. 112 will cause the top plate 111 to slide downward on the base 110. As the top plate 111 moves downward, it will also cause the upper cover 102 to move downward synchronously and be fitted onto the top of the insulator body 1. The upper cover 102 is clamped onto the outer wall of the conductor 101 through the guide groove 103, so as to achieve quick and accurate positioning and installation. When the upper cover 102 is completely fitted onto the top of the insulator body 1, the top of the insulator body 1 will contact the inner cavity top wall of the upper cover 102. At this time, the semi-clamp 206 and the semi-circular clamp 207 will be located on both sides of the top of the insulator body 1.

[0033] like Figure 1 , Figure 4 , Figure 7 and Figure 8 As shown, the elastic force of the elastic cylinder 305 is greater than the elastic force of the return spring 3.

[0034] One set of semicircular clamps 207 is fixedly equipped with a guide rod 5, and the other end of the guide rod 5 passes through another set of semicircular clamps 207 and slides with it.

[0035] The lower cover 104 has pins 6 evenly fixedly installed on the top side away from its opening, and the upper cover 102 has a slot 601 at the bottom that matches the pins 6.

[0036] The inner wall of the opening side of the lower cover 104 is set with a slope, and a magnet block 107 is fixedly installed at the bottom of the lower cover 104. The magnet block 107 is magnetically attracted to the top of the outer crossbeam.

[0037] By adopting the above technical solution, the guide rod 5 guides and limits the closing movement of the two semi-clamps 206, ensuring that the two semi-clamps 206 maintain the correct alignment during the closing process, further improving installation accuracy and reliability. When the upper cover 102 moves downward and is fitted onto the top of the insulator body 1, the top of the pin rod 6 will be inserted into the slot 601, limiting the displacement of the upper cover 102 relative to the lower cover 104 in the horizontal plane and its rotation around the vertical axis. To prevent horizontal misalignment between the upper cover 102 and the lower cover 104 due to counter-torque or lateral force of the wire 101 during the screw tightening operation 208, the inner wall of the opening side of the lower cover 104 is sloped to facilitate the lower cover 104's guidance when inserted between the bottom end of the insulator body 1 and the top of the crossarm. The lower cover 104 is temporarily fixed to the crossarm by the magnetic attraction between the magnet block 107 and the crossarm, so that the entire device remains stable during the subsequent lowering and tightening operation of the upper cover 102.

[0038] Working principle: During operation, the operator lifts the device to one side of the insulator body 1 using the telescopic rod 114. Alternatively, the telescopic rod 114 can be installed on a movable lifting platform. The lower cover 104 is inserted from the side between the bottom of the insulator body 1 and the top of the crossarm. The magnet 107 is attracted to the top of the crossarm for temporary fixation. The small motor 113 drives the threaded rod 112 to rotate, causing the top plate 111 and the upper cover 102 to slide down along the base 110, so that the upper cover 102 is fitted onto the top of the insulator body 1 from top to bottom. The wire 101 is inserted along the guide groove 103 to achieve precise positioning of the split insulating cover. After the upper cover 102 is fitted in, the small stepper motors 402 on both sides are turned on synchronously. The worm gear 401 drives the worm wheel 4 to rotate, and the worm wheel 4 drives the sleeve 201 and the screw 202 to rotate synchronously. When the screw 202 rotates, it extends axially to drive the overload protection component and the inner ring of the one-way bearing 204 to rotate. The one-way bearing 204 locks and transmits power to the outer ring, driving the screwdriver head 205 to rotate and extend towards the screw 208. During the extension of the screwdriver head 205, the movable plate 304 first contacts the push plate 301. The elastic cylinders 305 on both sides will push the two push plates 301 to bring the two half clamps 206 and the semi-circular clamps 207 together along the positioning groove 106 towards the middle, so that the half clamps 206 hug the top of the insulator body 1 and the semi-circular clamps 207 hold the outside of the conductor 101. Then the screwdriver head 205 continues to extend, the elastic cylinders 305 compress and store energy, the screwdriver head is inserted into the thread groove at the end of the screw 208 and drives the screw 208 to rotate, screwing the screw 208 into the nut 209, thus completing the fixation of the conductor 101 and the insulator body 1. After screw 208 is tightened to the correct position, screwdriver head 205 can no longer rotate. The steel ball 213 in the overload protection component slides out of the ball groove 214 and spins on the inner wall of sleeve 203, cutting off the transmission of rotational torque and preventing overload. When it is necessary to retract the screw, the small stepper motor 402 is reversed, the screw 202 rotates in the opposite direction and retracts axially, the one-way bearing 204 reverses and disengages to cut off the power, and the screwdriver head 205 does not rotate but only axially exits the screw 208 groove. Then, the small motor 113 is reversed to make the upper cover 102 rise and detach from the insulator body 1, and the lower cover 104 is pulled out from the side, completing the entire installation operation.

[0039] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A live clamping device for an insulator with an adaptive positioning system of upper and lower split insulating covers, comprising an insulator body (1) and a conductor (101) mounted in a groove on its top, characterized in that, Also includes: The fixing assembly includes half clamps (206) disposed opposite to each other on the top sides of the insulator body (1), and two semi-circular clamps (207) installed on the top of the half clamps (206). A gap is formed between the two half clamps (206) for the conductor (101) to pass through. Each of the mounting ears of the two half clamps (206) is provided with a matching screw (208) and nut (209). The split insulating cover includes an upper cover (102) and a lower cover (104) that can be opened and closed relative to each other. The lower cover (104) is laterally inserted between the bottom end of the insulator body (1) and the top of the outer crossarm. The upper cover (102) is fitted from top to bottom onto the top of the insulator body (1). A clamping drive assembly is disposed inside the upper cover (102) for pushing the two half clamps (206) and the semicircular clamps (207) on them along the closing direction so that they hug the top of the insulator body (1); A tightening assembly, located on the upper cover (102), is used to screw the screws (208) on the mounting ears of the two half clamps (206) into the nuts (209) to lock the conductor (101) to the top of the insulator body (1).

2. The adaptive positioning insulator clamping device with upper and lower split insulating covers according to claim 1, characterized in that: The tightening assembly includes a top plate (111) fixedly installed on both sides of the upper cover (102). A support plate (2) is fixedly installed on the top of the top plate (111). A sleeve (201) is rotatably installed on one side of the support plate (2). A screw (202) is threaded on the support plate (2). One end of the screw (202) is provided with a square sliding part, which is axially slidably installed in the inner cavity of the sleeve (201). The other end of the screw (202) is provided with an overload protection assembly. A one-way bearing (204) is provided on the other side of the overload protection assembly. The inner ring of the one-way bearing (204) is installed with the overload protection assembly. A screwdriver head (205) is installed on the outer ring of the one-way bearing (204). The upper cover (102) has a positioning groove (106) that is compatible with the insulator body (1), the half clamp (206) and the semi-circular clamp (207). The upper cover (102) has an active opening (105) for the movement of the tightening assembly. The output end of the screwdriver bit (205) is set towards the head of the screw (208).

3. The adaptive positioning insulator clamping device with upper and lower split insulating covers according to claim 2, characterized in that: The clamping drive assembly includes a circular plate (303) rotatably mounted on the outer wall of the screwdriver head (205). A movable plate (304) is provided on one side of the circular plate (303) and sleeved on the outer wall of the screwdriver head (205). An elastic cylinder (305) is fixedly installed between the movable plate (304) and the circular plate (303). Push plates (301) are provided in contact with the opposite sides of the two half clamps (206). The two push plates (301) are slidably installed in the inner cavity of the positioning groove (106). A return spring (3) is fixedly installed between the two push plates (301) and the inner wall of the positioning groove (106). A through-hole (302) adapted to the screwdriver head (205) is opened on the push plate (301).

4. The adaptive positioning insulator clamping device with upper and lower split insulating covers according to claim 2, characterized in that: The overload protection assembly includes a fixing plate (210) fixedly installed on the outer wall of the screw (202), a sleeve plate (211) axially slidingly installed on the outer end of the screw (202), a disc spring (212) installed between the sleeve plate (211) and the fixing plate (210), a sleeve (203) sleeved on the outer wall of the fixing plate (210) and the sleeve plate (211), the sleeve (203) fixedly installed on the inner ring of the one-way bearing (204), the sleeve (203) sleeved on the rod wall of the screw (202), a steel ball (213) evenly rolled on one side wall of the sleeve plate (211), and a ball groove (214) adapted to the steel ball (213) is opened on the inner wall of the sleeve (203).

5. The adaptive positioning insulator clamping device for upper and lower split insulating covers according to claim 2, characterized in that: A worm gear (4) is fixedly installed at one end of the sleeve (201) away from the adjacent support plate (2). A worm (401) is meshed with the bottom of the worm gear (4). The worm (401) is rotatably installed with the top plate (111). A small stepper motor (402) is fixedly installed on one side of the top plate (111). The output shaft of the small stepper motor (402) is fixedly installed with the worm (401).

6. The adaptive positioning insulator clamping device for upper and lower split insulating covers according to claim 2, characterized in that: The upper cover (102) is provided with a guide groove (103) adapted to the wire (101). A base (110) is fixedly installed on one side of the lower cover (104). A threaded rod (112) is rotatably installed on the top of the base (110). The top plate (111) located on the upper side of the base (110) is threadedly installed with the threaded rod (112), and the top plate (111) is vertically slidably installed with the base (110). A small motor (113) is fixedly installed in the inner cavity of the base (110). The output shaft of the small motor (113) is fixedly installed with the threaded rod (112). A telescopic rod (114) is fixedly installed at the bottom of the base (110).

7. The adaptive positioning insulator clamping device with upper and lower split insulating covers according to claim 3, characterized in that: The elastic force of the elastic cylinder (305) is greater than the elastic force of the return spring (3).

8. The adaptive positioning insulator clamping device with upper and lower split insulating covers according to claim 1, characterized in that: One set of the semicircular clamps (207) is fixedly equipped with a guide rod (5), and the other end of the guide rod (5) passes through another set of the semicircular clamps (207) and slides with it.

9. The adaptive positioning insulator clamping device with upper and lower split insulating covers according to claim 1, characterized in that: The lower cover (104) has a pin (6) evenly fixedly installed on the side away from its opening at the top, and the upper cover (102) has a slot (601) at the bottom that is compatible with the pin (6).

10. The adaptive positioning insulator clamping device for upper and lower split insulating covers according to claim 1, characterized in that: The inner wall of the opening side of the lower cover (104) is set with a slope, and a magnet block (107) is fixedly installed at the bottom of the lower cover (104). The magnet block (107) is magnetically attracted to the top of the outer crossbeam.

Images