A distribution network active repair device

Abstract

The application belongs to the technical field of distribution network, and is especially a distribution network active repair device, which comprises a wire tower and a cable, the cable is provided with an active clamping device, the wire tower is provided with an active pulling back device, and the outer side of one end of the cable is provided with one active clamping device, the active clamping device and the active pulling back device are matched, the broken cable can be quickly clamped, the broken end of the cable is clamped, the broken cable can be automatically lifted, the broken end of the cable is lifted to the original height, the first step of active repair is realized, time for subsequent repair is saved, and the broken cable is prevented from dragging the ground and causing danger, the device does not need to use electricity, so that installation is convenient and the installation cost is low.

Description

Technical Field

[0001] This invention belongs to the field of power distribution network technology, and specifically relates to a power distribution network active emergency repair device. Background Technology

[0002] The distribution network is a power grid that receives electrical energy from the transmission network or regional power plants and distributes it locally or in stages according to voltage to various users through distribution facilities. Due to heavy snow, strong winds or other natural disasters, the cables in the distribution network may break. Workers need to carry out emergency repairs as soon as possible. Connecting the broken cables and pulling the broken cables back to their original height is not an easy task and requires the use of other mechanical equipment, which causes time delays in the repair work. Summary of the Invention

[0003] To address the problems mentioned in the background section, this invention provides an active power distribution network repair device. This device, through the cooperation of an active clamping device and an active pull-back device, can quickly clamp a broken cable, holding the broken end of the cable, and automatically lift the broken cable, raising the broken end to near its original horizontal height.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an active emergency repair device for a power distribution network, comprising a power tower and a cable, wherein an active clamping device is provided on the cable, an active pull-back device is provided on the power tower, and an active clamping device is respectively provided near both ends of the outer side of a cable.

[0005] The active clamping device includes an active moving mechanism, an active control mechanism, an active clamping mechanism, and a locking mechanism. The active control mechanism is disposed inside the active moving mechanism. One end of the active control mechanism contacts the active clamping mechanism, and one end of the active clamping mechanism contacts the locking mechanism.

[0006] The active pull-back device includes a support mechanism, a straightening mechanism, a clutch mechanism, and a release mechanism. The straightening mechanism is installed at one end of the support mechanism, the clutch mechanism is installed at the other end of the support mechanism, and the release mechanism is installed on one side of the clutch mechanism.

[0007] As a preferred embodiment of the active emergency repair device for power distribution networks according to the present invention, the active moving mechanism includes a movable protective shell, a solid wheel, a first rotating wheel, a first coil spring, and a hollow wheel. The movable protective shell is sleeved on the outer side of the cable. The solid wheel is rotatably connected to the inner side of one end of the movable protective shell. The solid wheel is in rotatable contact with the outer surface of the cable. The first rotating wheel is rotatably connected to the inner side of one end of the movable protective shell at a position opposite to the solid wheel. The first coil spring is fixedly connected to the outer side of one end of the first rotating wheel. The hollow wheel is fixedly connected to the other end of the first coil spring. The outer side of one end of the hollow wheel is in rotatable contact with the outer surface of the cable. The inner side of one end of the hollow wheel is rotatably connected to the outer side of one end of the first rotating wheel.

[0008] As a preferred embodiment of the active emergency repair device for power distribution networks of the present invention, the active moving mechanism further includes a connecting part and a fixing member. One end of the connecting part is fixedly connected to the outer side of one end of the movable protective shell, and the other end of the connecting part is fixedly connected to the fixing member. The fixing member is fixed to the outer side of one end of the power tower.

[0009] As a preferred embodiment of the active emergency repair device for power distribution networks of the present invention, the active control mechanism includes a clamping bracket, a horizontal plate, a first tension spring, a second rotating wheel, and a rocker. One end of the clamping bracket is rotatably connected to the inner side of one end of the movable protective housing. One end of the clamping bracket is fixedly connected to the horizontal plate. The upper and lower horizontal plates are connected by the first tension spring. One end of the clamping bracket is rotatably connected to the second rotating wheel, which is made of a material that is easily broken. One end of the second rotating wheel is rotatably connected to the outer surface of the cable. The rocker is fixedly connected at the rotation position of the clamping bracket and the movable protective housing.

[0010] As a preferred embodiment of the active emergency repair device for distribution networks of the present invention, the active clamping mechanism includes a driven plate and a first clamping part. One end of the rocker plate is in contact with the driven plate, the driven plate is rotatably connected to the inner side of one end of the movable protective shell, and the other end of the driven plate is rotatably connected to the first clamping part, which can clamp the cable.

[0011] As a preferred embodiment of the active emergency repair device for distribution networks according to the present invention, the locking mechanism includes a connecting bracket, a sleeve, a second clamping part, and a telescopic plate. The connecting bracket is fixed to the outer top of the movable protective housing. The sleeve is fixedly connected to the inner top of the connecting bracket. The cable is sleeved on the inner side of the sleeve. The second clamping part located on the upper side is fixed to the top inner side of the sleeve. The telescopic plate is fixedly connected to the second clamping part located on the lower side. The telescopic plate is slidably connected to the inner side of one end of the connecting bracket. The bottom arc of the telescopic plate is in contact with the upper left side of the driven plate.

[0012] As a preferred embodiment of the active emergency repair device for power distribution networks according to the present invention, the support mechanism includes a horizontal support and a support bracket, one end of the horizontal support is fixed at the top of the power tower, and the support bracket is fixed on the upper top side of the horizontal support.

[0013] In a preferred embodiment of the active emergency repair device for power distribution networks according to the present invention, the straightening mechanism includes a first fixing part, a second coil spring, an extension plate, a slider, a sliding bracket, a cylindrical outer sleeve, a threaded rod, a winding wheel, and a wire rope. One end of the first fixing part is fixed to the outer side of one end of the support bracket. The second coil spring is fixedly connected to the outer end face of one end of the first fixing part. The extension plate is fixedly connected to the other end of the second coil spring. The slider is fixedly connected to the top end of the extension plate. The outer side of one end of the slider is slidably connected to the inner side of one end of the sliding bracket. The outer side of one end of the sliding bracket is fixed. On the inner wall of one end of the cylindrical sleeve, the threaded rod is fixedly connected to the outer side of one end of the first fixing part. The outer side of one end of the threaded rod is threadedly connected to the winding wheel. The outer side of one end of the winding wheel is fixedly connected to the outer side of one end of the cylindrical sleeve. The wire rope is wound and fixedly attached to the outer side of one end of the winding wheel. The wire rope passes through the inner side of the sleeve. The other end of the wire rope is fixed to the outer side of the opposite power tower. One active pull-back device passes through the sleeve of one active clamping device via the wire rope. The two active pull-back devices are arranged opposite each other.

[0014] As a preferred embodiment of the active emergency repair device for power distribution networks according to the present invention, the clutch mechanism includes a second fixing part, a third coil spring, an annular ring, an outer sleeve, a strip groove, a rotating engaging component, and a second tension spring. The second fixing part is fixed to the outer side of the other end of the support bracket. The third coil spring is fixedly connected to the outer end face of one end of the second fixing part. The elastic force of the third coil spring is much greater than that of the second coil spring. The annular ring is fixedly connected to the other end of the third coil spring. The outer sleeve is rotatably connected to the outer side of the annular ring. The outer side of one end of the outer sleeve is fixedly connected to the other end of the winding wheel. A plurality of strip grooves are evenly formed on the inner wall surface of one end of the outer sleeve. The rotating engaging component is rotatably connected to the inner side of the annular ring. The rotating engaging component and the annular ring are connected by the second tension spring.

[0015] As a preferred embodiment of the active emergency repair device for power distribution networks of the present invention, the release mechanism includes a circular plate, a plate-shaped pushing part, a reinforcing limiting strip, an annular member, a sliding plate-shaped member, a plate-shaped engaging part, a first magnet, and a second magnet. One end of the inner wall of the circular plate is fixed to one end of the outer surface of the second fixing part. The plate-shaped pushing part is slidably connected to the inner side of one end of the circular plate. The reinforcing limiting strip is fixedly connected to the outer side of one end of the plate-shaped pushing part, and the reinforcing limiting strip can be slidably connected to the inner side of the circular plate. The annular member is fixedly connected to one end of the plate-shaped pushing part, and the annular member is slidably disposed on the inner side of one end of the circular plate. The sliding plate-shaped member is slidably connected to the inner side of one end of the annular member. The other end of the sliding plate-shaped member is fixedly connected to the plate-shaped engaging part. One end of the outer shell of the plate-shaped engaging part can simultaneously engage and contact the inner side of one end of the circular plate and the annular member. The first magnet is fixedly connected to the other end of the plate-shaped engaging part, and the second magnet, fixed to the inner side of the annular member, is disposed on the opposite side of the first magnet.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by combining the active clamping device and the active pull-back device, the broken cable can be quickly clamped and the broken end of the cable can be held. The broken cable can also be automatically lifted so that the broken end of the cable rises to a height close to the original horizontal level, realizing the first step of active repair. This not only saves time for subsequent repairs, but also prevents the broken cable from dragging on the ground and causing danger. The device does not require electricity, so it is easy to install and the installation cost is also relatively low. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the connection structure of the active clamping device in this invention;

[0020] Figure 3 This is a cross-sectional view of the overall structure of the active clamping device in this invention;

[0021] Figure 4 This is a left view of the initial state of the active pull-back device in this invention;

[0022] Figure 5 This is a left view of the winding wheel of the active pull-back device in this invention after it has moved.

[0023] Figure 6 This is a left sectional view of the initial state of the active pull-back device in this invention;

[0024] Figure 7 This is a left sectional view of the winding wheel of the active pull-back device in this invention after it has moved.

[0025] Figure 8 This is a left sectional view of the initial state of the straightening mechanism in this invention;

[0026] Figure 9 This is a left sectional view of the winding wheel of the straightening mechanism in this invention after it has moved.

[0027] Figure 10 This is a left sectional view of the initial state of the clutch mechanism in this invention;

[0028] Figure 11 In this invention Figure 10 An enlarged structural diagram at point A;

[0029] Figure 12 This is a left sectional view of the winding wheel of the clutch mechanism in this invention after it has moved.

[0030] Figure 13 In this invention Figure 12 A magnified structural diagram at point B;

[0031] Figure 14 This is a cross-sectional view of the internal structure of the annular ring in this invention;

[0032] Figure 15 In this invention Figure 14 A magnified structural diagram at point C.

[0033] In the picture:

[0034] 1. Power line tower; 2. Power cable;

[0035] 3. Active clamping device;

[0036] 31. Active moving mechanism;

[0037] 311. Movable protective shell; 312. Solid wheel; 313. First rotating wheel; 314. First coil spring; 315. Hollow wheel; 316. Connecting part; 317. Fixing component;

[0038] 32. Active control mechanism;

[0039] 321. Clamping bracket; 322. Horizontal plate; 323. First tension spring; 324. Second rotating wheel; 325. Rocker;

[0040] 33. Active clamping mechanism;

[0041] 331. Driven plate; 332. First clamping part;

[0042] 34. Locking mechanism;

[0043] 341. Connecting bracket; 342. Sleeve; 343. Second clamping part; 344. Telescopic plate;

[0044] 4. Active pull-back device;

[0045] 41. Supporting institutions;

[0046] 411. Horizontal support; 412. Supporting bracket;

[0047] 42. Straightening mechanism;

[0048] 421. First fixing part; 422. Second coil spring; 423. Extending plate; 424. Slider; 425. Sliding bracket; 426. Cylindrical outer sleeve; 427. Threaded rod; 428. Rewinding wheel; 429. Wire rope;

[0049] 43. Clutch mechanism;

[0050] 431. Second fixing part; 432. Third coil spring; 433. Ring ring; 434. Outer sleeve; 435. Strip groove; 436. Rotating locking part; 437. Second tension spring;

[0051] 44. Release mechanism;

[0052] 441. Circular plate; 442. Plate-shaped pushing part; 443. Reinforcing limiting strip; 444. Ring-shaped part; 445. Sliding plate-shaped part; 446. Plate-shaped engaging part; 447. First magnet; 448. Second magnet. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] like Figure 1-15 As shown:

[0055] An active emergency repair device for a power distribution network includes a power tower 1 and a cable 2. An active clamping device 3 is installed on the cable 2, and an active pull-back device 4 is installed on the power tower 1. An active clamping device 3 is installed near both ends of the outer side of a cable 2.

[0056] The active clamping device 3 includes an active moving mechanism 31, an active control mechanism 32, an active clamping mechanism 33, and a locking mechanism 34. The active moving mechanism 31 is provided with the active control mechanism 32 inside. One end of the active control mechanism 32 contacts the active clamping mechanism 33, and one end of the active clamping mechanism 33 contacts the locking mechanism 34.

[0057] The active pull-back device 4 includes a support mechanism 41, a straightening mechanism 42, a clutch mechanism 43, and a release mechanism 44. The straightening mechanism 42 is installed at one end of the support mechanism 41, the clutch mechanism 43 is provided at the other end of the support mechanism 41, and the release mechanism 44 is provided on one side of the clutch mechanism 43.

[0058] In an optional embodiment, the active moving mechanism 31 includes a movable protective shell 311, a solid wheel 312, a first rotating wheel 313, a first coil spring 314, and a hollow wheel 315. The movable protective shell 311 is sleeved on the outside of the cable 2. The solid wheel 312 is rotatably connected to the inner side of one end of the movable protective shell 311. The solid wheel 312 is in rotatable contact with the outer surface of the cable 2. The first rotating wheel 313 is rotatably connected to the inner side of one end of the movable protective shell 311 at a position opposite to the solid wheel 312. The first coil spring 314 is fixedly connected to the outer side of one end of the first rotating wheel 313. The hollow wheel 315 is fixedly connected to the other end of the first coil spring 314. The outer side of one end of the hollow wheel 315 is in rotatable contact with the outer surface of the cable 2. The inner side of one end of the hollow wheel 315 is rotatably connected to the outer side of one end of the first rotating wheel 313.

[0059] In an optional embodiment, the active moving mechanism 31 further includes a connecting part 316 and a fixing member 317. One end of the connecting part 316 is fixedly connected to the outer side of one end of the movable protective housing 311, and the other end of the connecting part 316 is fixedly connected to the fixing member 317, which is fixed to the outer side of one end of the power tower 1.

[0060] In an optional embodiment, the active control mechanism 32 includes a clamping bracket 321, a horizontal plate 322, a first tension spring 323, a second rotating wheel 324, and a rocker 325. One end of the clamping bracket 321 is rotatably connected to the inner side of one end of the movable protective housing 311. The horizontal plate 322 is fixedly connected to one end of the clamping bracket 321. The upper and lower horizontal plates 322 are connected by a first tension spring 323. The second rotating wheel 324 is rotatably connected to one end of the clamping bracket 321. The second rotating wheel 324 is made of a material that is easily broken. One end of the second rotating wheel 324 is rotatably connected to the outer surface of the cable 2. The rocker 325 is fixedly connected to the clamping bracket 321 and the movable protective housing 311 at the rotating position.

[0061] In an optional embodiment, the active clamping mechanism 33 includes a driven plate 331 and a first clamping part 332. One end of the rocker plate 325 is in contact with the driven plate 331. The driven plate 331 is rotatably connected to the inner side of one end of the movable protective housing 311. The other end of the driven plate 331 is rotatably connected to the first clamping part 332, which can clamp the cable 2.

[0062] In an optional embodiment, the locking mechanism 34 includes a connecting bracket 341, a sleeve 342, a second clamping part 343, and a telescopic plate 344. The connecting bracket 341 is fixed to the outer top of the movable protective housing 311. The sleeve 342 is fixedly connected to the inner top of the connecting bracket 341. The cable 2 is sleeved on the inner side of the sleeve 342. The second clamping part 343 located on the upper side is fixed to the top inner side of the sleeve 342. The telescopic plate 344 is fixedly connected to the second clamping part 343 located on the lower side. The telescopic plate 344 is slidably connected to the inner side of one end of the connecting bracket 341. The bottom arc of the telescopic plate 344 is in contact with the upper left side of the driven plate 331.

[0063] In this embodiment: the active clamping device 3 can actively clamp the broken end of the cable 2 when the cable 2 breaks unexpectedly. When the cable 2 breaks, there are two situations. The first situation is that the cable 2 breaks in the middle, or the cable 2 breaks between the two active clamping devices 3 (hereinafter referred to as middle break). The second situation is that the cable 2 breaks near the position of the power tower 1, that is, the cable 2 between the two power towers 1 breaks at a position other than between the two active clamping devices 3 (hereinafter referred to as end break).

[0064] In the first scenario, when cable 2 breaks in the middle, it will first fall downwards due to its own weight. This inevitably leads to severe bending at the connection between cable 2 and the power tower 1. This bending causes cable 2 to move along with the active clamping device 3, thus breaking the connecting part 316. It should be noted that the connecting part 316 should be selected so that it can be quickly broken apart when bent to a certain angle, but has strong tensile strength, and can provide strong traction force to the active clamping device 3. After cable 2 breaks, the connecting part 316 no longer applies traction force to the active clamping device 3. At this time, the elasticity of the first coil spring 314 set inside the active moving mechanism 31 of the active clamping device 3 will be released. After the elasticity of the first coil spring 314 is released, it will drive the hollow wheel 315 to rotate. The rotation of the hollow wheel 315 and the outer surface of cable 2 will realize that the active clamping device 3 moves rapidly until it moves close to the break of cable 2. When the cable 2 is in contact with the second rotating wheel 324, which was originally rotating outside the cable 2, it can no longer make contact with the cable 2. Therefore, under the influence of the elastic force of the first tension spring 323, the first tension spring 323 will drive the two horizontal plates 322 to clamp the two clamping brackets 321 towards the middle. The clamping brackets 321 will drive the rocker plate 325 to rotate, and the rocker plate 325 will drive the driven plate 331 to rotate. The driven plate 331 will drive the first clamping part 332 to move, so that the two first clamping parts 332 clamp the cable 2, thereby realizing the active clamping device 3. Fixed at the broken end of cable 2, while the driven plate 331 located on the upper side rotates, the driven plate 331 will push the telescopic plate 344 to move. The movement of the telescopic plate 344 will drive a second clamping part 343 to move together. The combined action of the two second clamping parts 343 will clamp the wire rope 429, thereby fixing the position of the active clamping device 3 and the wire rope 429. Therefore, when the active clamping device 3 moves to the broken end of cable 2, the active clamping device 3 will be fixed with cable 2 and wire rope 429.

[0065] In the second scenario, when cable 2 breaks at its end, the breakage will cause the broken end of cable 2 to fall along with the nearby active clamping device 3. In this case, the connecting part 316 in the other active clamping device 3 will definitely break. The active clamping device 3 with the broken connecting part 316 will then move according to the first scenario until the moving active clamping device 3 hits the stationary active clamping device 3. At this time, due to the huge impact force, the second rotating wheels 324 on both active clamping devices 3 will be broken. Then, one end of the clamping bracket 321 will no longer have the second rotating wheel 324. The original position where the second rotating wheel 324 rotated on the clamping bracket 321 will sit on the outside of the cable 2. Similarly, the two clamping brackets 321 can clamp each other. According to the description of the first scenario, the active clamping device 3 can clamp and lock the cable 2 and the wire rope 429.

[0066] Furthermore;

[0067] In an optional embodiment, the support mechanism 41 includes a horizontal bracket 411 and a support bracket 412. One end of the horizontal bracket 411 is fixed at the top of the power tower 1, and the support bracket 412 is fixed on the top upper side of the horizontal bracket 411.

[0068] In an optional embodiment, the straightening mechanism 42 includes a first fixing part 421, a second coil spring 422, an extension plate 423, a slider 424, a sliding bracket 425, a cylindrical outer sleeve 426, a threaded rod 427, a winding wheel 428, and a wire rope 429. One end of the first fixing part 421 is fixed to the outer side of one end of the support bracket 412. The second coil spring 422 is fixedly connected to the outer end face of one end of the first fixing part 421. The extension plate 423 is fixedly connected to the other end of the second coil spring 422. The slider 424 is fixedly connected to the top end of the extension plate 423. The outer side of one end of the slider 424 is slidably connected to the inner side of one end of the sliding bracket 425. One end of 425 is fixed to the outer side of one end of the inner wall of the cylindrical outer sleeve 426. One end of the first fixing part 421 is fixedly connected to a threaded rod 427. One end of the threaded rod 427 is threadedly connected to a winding wheel 428. One end of the winding wheel 428 is fixedly connected to one end of the outer side of the cylindrical outer sleeve 426. A steel wire rope 429 is wound and fixed on one end of the winding wheel 428. The steel wire rope 429 passes through the inner side of the sleeve 342. The other end of the steel wire rope 429 is fixed to the outer side of the opposite power tower 1. An active pull-back device 4 passes through the sleeve 342 of an active clamping device 3 via the steel wire rope 429. The two active pull-back devices 4 are arranged opposite each other.

[0069] In an optional embodiment, the clutch mechanism 43 includes a second fixing part 431, a third coil spring 432, an annular ring 433, an outer sleeve 434, a strip groove 435, a rotating engaging member 436, and a second tension spring 437. The second fixing part 431 is fixed to the outer side of the other end of the support bracket 412. The outer end face of one end of the second fixing part 431 is fixedly connected to the third coil spring 432. The elastic force of the third coil spring 432 is much greater than that of the second coil spring 422. The other end of the third coil spring 432 is fixedly connected to the annular ring 433. The outer sleeve 434 is rotatably connected to the outer side of the annular ring 433. The outer side of one end of the outer sleeve 434 is fixedly connected to the other end of the winding wheel 428. A plurality of strip grooves 435 are evenly opened on the inner wall surface of one end of the outer sleeve 434. The rotating engaging member 436 is rotatably connected to the inner side of the annular ring 433. The rotating engaging member 436 and the annular ring 433 are connected by the second tension spring 437.

[0070] In an optional embodiment, the release mechanism 44 includes a circular plate 441, a plate-shaped pushing part 442, a reinforcing limiting strip 443, an annular member 444, a sliding plate-shaped member 445, a plate-shaped engaging part 446, a first magnet 447, and a second magnet 448. One end of the inner wall of the circular plate 441 is fixed to one end of the outer end face of the second fixing part 431. The plate-shaped pushing part 442 is slidably connected to the inner side of one end of the circular plate 441, and the reinforcing limiting strip 443 is fixedly connected to the outer side of one end of the plate-shaped pushing part 442. The reinforcing limiting strip 443 can be slidably connected to the inner side of the circular plate 441. One end of the moving part 442 is fixedly connected to an annular member 444. The annular member 444 is slidably disposed on the inner side of one end of the circular plate 441. A sliding plate-shaped member 445 is slidably connected to the inner side of one end of the annular member 444. The other end of the sliding plate-shaped member 445 is fixedly connected to a plate-shaped engaging part 446. One end of the outer shell of the plate-shaped engaging part 446 can simultaneously engage and contact the inner side of one end of the circular plate 441 and the annular ring 433. The other end of the plate-shaped engaging part 446 is fixedly connected to a first magnet 447. A second magnet 448 is disposed on the opposite side of the first magnet 447 and fixed to the inner side of the annular ring 433.

[0071] In this embodiment: when the active clamping device 3 falls along with the cable 2, it will pull the wire rope 429 downwards. When the wire rope 429 is pulled, it will be pulled out from the outside of the take-up reel 428. The take-up reel 428 will drive the cylindrical outer sleeve 426, thereby driving the sliding bracket 425 to rotate. The rotation of the sliding bracket 425 will drive the slider 424 to rotate. The rotation of the slider 424 will drive the extension plate 423 to rotate together. The rotation of the extension plate 423 will overcome the elastic force of the second coil spring 422 and rotate, so that the wire rope 429 can be pulled out from the outside of the take-up reel 428 under the action of overcoming the elastic force of the second coil spring 422. It should be noted that the second coil spring 422 indirectly applies rotation to the take-up reel 428. The purpose of the rotation force is to wind up the wire rope 429 when not in use, avoiding excessive dragging. When the active clamping device 3 falls along with the cable 2, it will pull the wire rope 429 downwards. When the wire rope 429 is stretched, it will be pulled out from the outside of the winding wheel 428, giving it an elastic extension. This prevents excessive inertial force from breaking the wire rope 429, allowing the second coil spring 422 to absorb the large buffering force when the cable 2 falls. It should also be noted that although the elastic force of the second coil spring 422 cannot counteract the descent of the active clamping device 3 and the cable 2, the elastic force generated by the second coil spring 422 can still affect the wire rope 429 through the rotation of the winding wheel 428. 9. A certain degree of pulling is applied to prevent the wire rope 429 from falling too quickly when it encounters the active clamping device 3 and the cable 2. Before the active clamping device 3 moves to the broken end of the cable 2, it is still sliding between itself and the wire rope 429. Once the active clamping device 3 and the wire rope 429 are in a fixed state, the pulling force of the active clamping device 3 on the wire rope 429 will suddenly increase because the inertia of the active clamping device 3 and the cable 2 is suddenly restrained. Therefore, only after the active clamping device 3 clamps and locks the cable 2 and the wire rope 429 can the wire rope 429 be truly pulled quickly, causing the winding wheel 428 to rotate at high speed. The winding wheel 428 and the fixed threaded rod... When 427 rotates relative to the threaded rod 427, the take-up wheel 428 moves along the direction of the threaded rod 427. Through the slider 424 and sliding bracket 425, the second coil spring 422, connected to the slider 424 via the extension plate 423, can still provide rotational elasticity to the cylindrical outer sleeve 426 when it moves relative to it. When the take-up wheel 428 moves to contact and push the plate-shaped pusher 442, the plate-shaped pusher 442 is forced to move. The reinforcing limit strip 443 increases the stability of the plate-shaped pusher 442's movement. The movement of the plate-shaped pusher 442 drives the annular member 444 to move.The movement of the annular member 444 will cause the sliding plate-shaped member 445 to move. The movement of the sliding plate-shaped member 445 will cause the plate-shaped engaging part 446 to move, so that the plate-shaped engaging part 446, which was originally engaged between the circular plate 441 and the annular ring 433, is pushed out of the circular plate 441. At this time, the state in which the plate-shaped engaging part 446 limited the position between the circular plate 441 and the annular ring 433 is changed to no longer limiting it. Since the connection between the sliding plate-shaped member 445 and the annular member 444 is pushed to the gap between the circular plate 441 and the annular ring 433, and the plate-shaped engaging part 446 is no longer engaged with the circular plate 441, the plate-shaped engaging part 446 is no longer engaged with the circular plate 441. 441 engages, so the sliding plate 445 can slide in a circular trajectory inside the annular part 444. Through the provided second magnet 448 and first magnet 447, after the first magnet 447 and the plate-shaped engaging part 446 move together and contact the second magnet 448, the magnetic connection between the second magnet 448 and the first magnet 447 increases the stability of the plate-shaped engaging part 446 fixed inside the annular ring 433. This ensures that even without the continued pushing of the plate-shaped pushing part 442, the plate-shaped engaging part 446 will remain inside the annular ring 433 and will not move. When the annular ring 433 can rotate, it will rotate rapidly under the elastic force of the third coil spring 432, and this rotation has a large torque. The high-speed rotation of the annular ring 433 will apply centrifugal force to the internal rotating engagement member 436. Under the influence of centrifugal force, the rotating engagement member 436 will overcome the elastic force of the second tension spring 437 and rotate, so that the rotating engagement member 436 is engaged inside the slot 435 opened on the inner side of the outer sleeve 434. Therefore, at this time, the annular ring 433 drives the outer sleeve 434 to rotate through the rotating engagement member 436. The rotation of the outer sleeve 434 will drive the take-up wheel 428 to rotate. The movement causes the take-up reel 428 to wind and coil the wire rope 429, straightening the wire rope 429. This, in turn, pulls the broken section of the cable 2 upwards, close to its original height, via the active clamping device 3. Because the take-up reel 428 rotates during winding, it also rotates with the threaded rod 427, causing the take-up reel 428 to move back to its original position along the direction of the threaded rod 427. Since the outer sleeve 434 has a groove 435 on its inner side, the rotating engaging member 436 can slide within this groove, providing continuous engagement.

[0072] It should be noted that the active clamping device 3 moves on the cable 2 at a speed fast enough that the time taken for the active clamping device 3 to move to the break point of the cable 2 is shorter than the time taken for the take-up wheel 428 to move to the push plate-shaped push part 442.

[0073] It should also be noted that when the plate-shaped pushing part 442 is inside the circular plate 441, there is a certain friction between the plate-shaped pushing part 442 and the circular plate 441, so that the plate-shaped pushing part 442 will not easily move inside the circular plate 441.

[0074] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A distribution network active emergency repair device, comprising power line towers and cables, characterized in that: An active clamping device is provided on the cable, and an active pull-back device is provided on the power tower. One active clamping device is provided near each of the two outer ends of the cable. The active clamping device includes an active moving mechanism, an active control mechanism, an active clamping mechanism, and a locking mechanism. The active control mechanism is disposed inside the active moving mechanism. One end of the active control mechanism contacts the active clamping mechanism, and one end of the active clamping mechanism contacts the locking mechanism. The active pull-back device includes a support mechanism, a straightening mechanism, a clutch mechanism, and a release mechanism. The straightening mechanism is installed at one end of the support mechanism, the clutch mechanism is installed at the other end of the support mechanism, and the release mechanism is installed on one side of the clutch mechanism. The active moving mechanism includes a movable protective shell, a solid wheel, a first rotating wheel, a first coil spring, and a hollow wheel. The movable protective shell is sleeved on the outside of the cable. The solid wheel is rotatably connected to the inner side of one end of the movable protective shell. The solid wheel is in rotatable contact with the outer surface of the cable. The first rotating wheel is rotatably connected to the inner side of one end of the movable protective shell at a position opposite to the solid wheel. The first coil spring is fixedly connected to the outer side of one end of the first rotating wheel. The hollow wheel is fixedly connected to the other end of the first coil spring. The outer side of one end of the hollow wheel is in rotatable contact with the outer surface of the cable. The inner side of one end of the hollow wheel is rotatably connected to the outer side of one end of the first rotating wheel. The active moving mechanism also includes a connecting part and a fixing member. One end of the connecting part is fixedly connected to the outer side of one end of the moving protective shell, and the other end of the connecting part is fixedly connected to the fixing member. The fixing member is fixed to the outer side of one end of the power tower. The active control mechanism includes a clamping bracket, a horizontal plate, a first tension spring, a second rotating wheel, and a rocker. One end of the clamping bracket is rotatably connected to the inner side of one end of the movable protective shell. The horizontal plate is fixedly connected to one end of the clamping bracket. The upper and lower horizontal plates are connected by the first tension spring. The second rotating wheel is rotatably connected to one end of the clamping bracket. The second rotating wheel is made of a material that is easily broken. One end of the second rotating wheel is rotatably connected to the outer surface of the cable. The rocker is fixedly connected to the clamping bracket and the movable protective shell at the rotation position. The active clamping mechanism includes a driven plate and a first clamping part. One end of the rocker plate is in contact with the driven plate. The driven plate is rotatably connected to the inner side of one end of the movable protective shell. The other end of the driven plate is rotatably connected to the first clamping part, which can clamp the cable.

2. The active emergency repair device for power distribution networks according to claim 1, characterized in that: The locking mechanism includes a connecting bracket, a sleeve, a second clamping part, and a telescopic plate. The connecting bracket is fixed to the top outer side of the movable protective shell. The sleeve is fixedly connected to the top inner side of the connecting bracket. The cable is sleeved on the inner side of the sleeve. The second clamping part located on the upper side is fixed to the top inner side of the sleeve. The telescopic plate is fixedly connected to the second clamping part located on the lower side. The telescopic plate is slidably connected to the inner side of one end of the connecting bracket. The bottom arc of the telescopic plate is in contact with the upper left side of the driven plate.

3. The active emergency repair device for distribution networks according to claim 2, characterized in that: The support mechanism includes a horizontal support and a supporting support. One end of the horizontal support is fixed at the top of the power tower, and the supporting support is fixed to the top of the horizontal support.

4. The active emergency repair device for distribution networks according to claim 3, characterized in that: The straightening mechanism includes a first fixing part, a second coil spring, an extension plate, a slider, a sliding bracket, a cylindrical sleeve, a threaded rod, a take-up reel, and a steel wire rope. One end of the first fixing part is fixed to the outer side of one end of the support bracket. The second coil spring is fixedly connected to the outer end face of one end of the first fixing part. The extension plate is fixedly connected to the other end of the second coil spring. The slider is fixedly connected to the top of the extension plate. The outer side of one end of the slider is slidably connected to the inner side of one end of the sliding bracket. The outer side of one end of the sliding bracket is fixed to the inner wall surface of one end of the cylindrical sleeve. The threaded rod is fixedly connected to the outer side of one end of the first fixing part. The take-up reel is threadedly connected to the outer side of one end of the threaded rod. The outer side of one end of the take-up reel is fixedly connected to the outer side of one end of the cylindrical sleeve. The steel wire rope is wound and fixed to the outer side of one end of the take-up reel. The steel wire rope passes through the inner side of the sleeve. The other end of the steel wire rope is fixed to the outer side of the opposite power tower. One active pull-back device passes through the sleeve of one active clamping device via the steel wire rope. Two active pull-back devices are arranged opposite each other.

5. The active emergency repair device for distribution networks according to claim 4, characterized in that: The clutch mechanism includes a second fixing part, a third coil spring, an annular ring, an outer sleeve, a strip groove, a rotating engaging component, and a second tension spring. The second fixing part is fixed to the outer side of the other end of the support bracket. The third coil spring is fixedly connected to the outer end face of one end of the second fixing part. The elastic force of the third coil spring is much greater than that of the second coil spring. The annular ring is fixedly connected to the other end of the third coil spring. The outer sleeve is rotatably connected to the outer side of the annular ring. One end of the outer sleeve is fixedly connected to the other end of the winding wheel. Several strip grooves are evenly formed on the inner wall of one end of the outer sleeve. The rotating engaging component is rotatably connected to the inner side of the annular ring. The rotating engaging component and the annular ring are connected by the second tension spring.

6. The active emergency repair device for distribution networks according to claim 5, characterized in that: The release mechanism includes a circular plate, a plate-shaped pushing part, a reinforcing limiting strip, an annular member, a sliding plate-shaped member, a plate-shaped engaging part, a first magnet, and a second magnet. One end of the inner wall of the circular plate is fixed to one end of the outer surface of the second fixing part. The plate-shaped pushing part is slidably connected to the inner side of one end of the circular plate. The reinforcing limiting strip is fixedly connected to the outer side of one end of the plate-shaped pushing part, and the reinforcing limiting strip can slide on the inner side of the circular plate. The annular member is fixedly connected to one end of the plate-shaped pushing part, and the annular member is slidably disposed on the inner side of one end of the circular plate. The sliding plate-shaped member is slidably connected to the inner side of one end of the annular member. The other end of the sliding plate-shaped member is fixedly connected to the plate-shaped engaging part. One end of the outer shell of the plate-shaped engaging part can simultaneously engage and contact the inner sides of the circular plate and the annular member. The first magnet is fixedly connected to the other end of the plate-shaped engaging part, and the second magnet, fixed to the inner side of the annular member, is disposed on the opposite side of the first magnet.

Images