A ground wire energy extraction device for a power transmission line

Abstract

The present invention belongs to the technical field of power supply equipment, and specifically relates to a ground wire energy acquisition device for a power transmission line. The device is provided with a fixing mechanism, and when the device is installed and connected to the ground wire, the connection stability of the device can be effectively improved, and the position of the ground wire can be fixed precisely, conveniently, stably and quickly, thereby improving the matching degree between the ground wire cable and the sensor; the provision of an outer protective cover and a protector can further protect the components and cables; the provision of a quick connector can improve the convenience of disassembly of the device when the device is in a high-altitude state, reduce the use of tools and the number of disassembled parts, and thereby improve the safety and convenience of maintenance personnel during the maintenance and disassembly process.

Description

Technical Field

[0001] The present invention belongs to the technical field of power supply equipment, and in particular relates to a ground wire energy extraction device for a power transmission line. Background Art

[0002] With the development of urbanization and the uneven distribution of power supply demand, in order to meet the needs of power transmission, it is necessary to build transmission lines for power transmission, such as the typical west-to-east power transmission. In order to avoid power lines occupying too much ground and causing accidents to people and animals on the ground, most of the power lines are currently built in the form of transmission towers. At the same time, since the threads of the transmission lines are very long, in order to ensure the safety of the transmission lines, corresponding circuit monitoring equipment is currently set up to monitor the transmission lines in real time.

[0003] At present, monitoring equipment often converts electricity through solar energy to maintain the operation of the equipment during the monitoring process, but this method has the problem of instability. Therefore, a method of using the ground wire of the transmission line to obtain energy has gradually emerged. For example, the invention with application number CN201510720132.6 uses the method of using the ground wire to obtain energy, which can achieve the effect of stable power supply. However, due to the different ground wire sizes and specifications of different transmission lines, the traditional method of directly inserting the ground wire into the sensor is prone to instability between the ground wire and the sensor, making it difficult to maintain stable coordination between the sensor and the ground wire, and it is also difficult to meet the needs of stable, fast and convenient connection and fixing operations. Summary of the invention

[0004] The purpose of the present invention is to provide a power transmission line ground wire energy extraction device, which can improve the matching effect and improve the stable fixation of the ground wire when matching and connecting the ground wire and the inductor.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A power transmission line ground wire energy extraction device comprises a base and a plurality of sensors, wherein the base is provided with a fixing mechanism matching the sensors;

[0007] The number of the fixing mechanisms is two and they are symmetrically arranged on the left and right sides of the sensors. The fixing mechanisms include a hollow ring, four clamping plates, four retractors, a swivel and an adjuster. The hollow ring is fixedly connected to the upper end of the base through a bracket. The four retractors are arranged on the inner ring side of the hollow ring in a ring shape and slide evenly. The four clamping plates are all located on the inner ring side of the hollow ring and correspond to the four retractors one by one. The swivel is rotatably arranged in the hollow ring and is provided with four toggle inclined plates matching the four retractors. The adjuster is arranged on the side of the hollow ring and connected to the swivel for matching.

[0008] A plurality of sensor arrays are arranged on the upper end of the base, and the base is connected to the transmission tower through bolts.

[0009] The telescopic device includes a telescopic rod, a limiting plate and a telescopic spring. The telescopic rod is slidably connected to the hollow ring and a guide rib is provided on the side of the telescopic rod. The limiting plate is provided on the side of the telescopic rod away from the clamping plate. The telescopic spring is sleeved on the telescopic rod and located between the limiting plate and the hollow ring. Such a structure is simple and stable, and is convenient for coordinating movement between other devices.

[0010] A ball is also provided at one end of the telescopic rod away from the clamping plate.

[0011] The rotating ring is a worm wheel, and the adjuster includes a worm and a handle. The handle is fixed to the end of the worm, and the worm is rotatably connected to the hollow ring through a connecting ear. A window is opened on the side of the hollow ring, and the worm is meshed and matched with the worm wheel. The cooperation of the worm wheel and worm can effectively improve the stability of the operation, especially after the adjustment is completed, it can directly avoid the automatic movement of the telescope and improve the stability.

[0012] The end of the toggle plate away from the rotating ring is provided with a tongue, and the interior of the hollow ring is provided with a blocking plate matching the tongue; in this way, the moving position of the toggle plate can be limited, thereby improving the operational stability.

[0013] An outer protective cover matching the fixing mechanism and the plurality of sensors is provided at the upper end of the base, the worm rotates through the outer protective cover and the handle is located outside the outer protective cover, and the front and rear ends of the outer protective cover are both provided with connecting openings matching the hollow ring.

[0014] The connecting port is provided with a protector, which is composed of at least three first protective plates and three second protective plates. Several of the first protective plates and several of the second protective plates are distributed in a ring shape and form a conical structure. Several of the first protective plates and several of the second protective plates are distributed in an overlapping manner inside and outside with the axis of the connecting port as the center, and the center lines of adjacent first protective plates and second protective plates differ by at least 120°. Several of the first protective plates and several of the second protective plates are elastically connected to the outer protective cover; in this way, a certain degree of shielding and protection can be provided to the connecting opening between the ground cable and the outer protective cover, and the flexibility is high.

[0015] The base is connected with four quick connectors in a rectangular distribution. The quick connectors include a joint and an unlocker. The joint is fixedly connected to the power transmission tower. The unlocker is arranged at the upper end of the base.

[0016] The joint includes a fixing plate, a connecting column and a locking piece, the fixing plate is fixedly connected to the fixing column and the fixing plate is fixedly connected to the tower, the connecting column has an opening facing a step cavity away from the middle of the base, the locking piece is arranged in the step cavity, the locking piece includes a return spring, a slide plate and a locking tongue, the slide plate is slidably arranged in the step cavity, the locking tongue is connected to the slide plate and extends out of the step cavity, the inclined end of the locking tongue faces upward, the return spring is connected to the other end of the slide plate and is located in the step cavity; in this way, the device can be connected more quickly and conveniently, and the operation steps of disassembly and assembly are reduced.

[0017] The unlocker is a flap, which is elastically hinged to the base, and the base is provided with a baffle and a handle that match the hinged side of the flap; by lifting the handle and then pressing the flap, the locking member can be quickly unlocked, and it can remain relatively stable in a static state.

[0018] Compared with the prior art, the present invention has at least the following advantages:

[0019] Through the setting of the fixing mechanism, when the sensor cooperates with the ground cable to obtain energy and supply power to the transmission line detection equipment, the ground cable can be fixed conveniently and flexibly, thereby improving the stability of the ground wire and keeping the ground wire limit always located in the middle of the sensor, thereby improving the coordination and stability between the ground wire and the sensor; through the coordination between the worm wheel and the worm, the stability and convenience of the device during adjustment can be improved, especially after the operation is completed, the locking can be directly achieved, which has the effect of improving the stability of the component state; the setting of the outer protective cover and the protector can provide a certain degree of protection for the connection gap between the component and the ground cable, further improving the protection effect of the component; the setting of the quick connector can improve the efficiency and convenience of disassembly and assembly of the device, better meet the disassembly needs of the device when it is in a high-altitude state, thereby improving the convenience and safety of operation of maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.

[0021] Figure 1 The present invention is a schematic structural diagram of a ground wire energy harvesting device for a power transmission line.

[0022] Figure 2 It is a structural cross-sectional view of the fixing mechanism of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the retractor of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the swivel and the regulator of the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the outer protective cover and the protector of the present invention.

[0026] Figure 6 for Figure 5 A magnified schematic diagram of center A.

[0027] Figure 7 It is a schematic structural diagram of another embodiment of the present invention.

[0028] Figure 8 It is a structural cross-sectional view of the joint of the present invention.

[0029] Base 1, sensor 11, hollow ring 2, clamping plate 21, swivel 22, toggle inclined plate 23, telescopic rod 3, limit plate 31, telescopic spring 32, ball 33, worm 4, handle 41, connecting ear 42, empty window 43, tongue 5, blocking plate 51, outer protective cover 6, first protective plate 62, second protective plate 63, fixing plate 7, connecting column 71, step cavity 72, reset spring 73, slide plate 74, locking tongue 75, flap 8, baffle 81, handle 82. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0031] Embodiment 1:

[0032] like Figure 1-4 As shown, a power transmission line ground wire energy extraction device includes a base 1 and a plurality of sensors 11, and the base 1 is provided with a fixing mechanism matching the sensors 11;

[0033] There are two fixing mechanisms symmetrically arranged on the left and right sides of the plurality of sensors 11, and the fixing mechanisms include a hollow ring 2, four clamping plates 21, four retractors, a swivel 22 and an adjuster. The hollow ring 2 is fixedly connected to the upper end of the base 1 through a bracket, and the four retractors are evenly slidably arranged on the inner ring side of the hollow ring 2 in an annular shape. The four clamping plates 21 are all located on the inner ring side of the hollow ring 2 and correspond to the four retractors one by one. The swivel 22 is rotatably arranged in the hollow ring 2 and is provided with four toggle inclined plates 23 matching the four retractors. The adjuster is arranged on the side of the hollow ring 2 and connected and matched with the swivel 22;

[0034] A plurality of sensors 11 are arranged in an array on the upper end of the base 1, and the base 1 is connected to the transmission tower by bolts.

[0035] Before using the device for ground wire energy extraction, the device is first installed on the transmission tower through the base 1, and then the ground wire passes through the fixing mechanism and the annular part of the inductor 11, wherein the inductor 11 is a mutual inductance coil, mainly composed of a magnetic core and a magnetic induction coil. Since its principle and structure are both existing public technologies, they are not described here. After the ground wire cable passes through the annular structure of the inductor 11 and the hollow circular ring 2 of the fixing mechanism, in order to ensure that the ground wire can remain stable and located in the middle of the inductor 11, the ground wire needs to be fixed accordingly at this time;

[0036] When performing the fixing operation, it is only necessary to drive the rotating ring 22 through the regulator. Since the rotating ring 22 is rotatably arranged in the hollow ring 2, when the regulator drives the rotating ring 22, the rotating ring 22 will synchronously drive the toggle inclined plate 23 to move around the center of the hollow ring 2. In the initial state, the telescopic device will drive the clamping plate 21 away from the center of the hollow ring 2, thereby facilitating the installation of the ground wire. Under the action of the toggle inclined plate 23, the telescopic device will be acted upon and drive the clamping plate 21 to gradually extend and move closer to the center of the hollow ring 2, thereby making it easier to install the ground wire. The clamping plate 21 gradually approaches the ground wire to clamp it. Furthermore, the clamping plate 21 itself is arc-shaped, which can better fit the ground wire cable. It can not only effectively fix and clamp the ground wire cable, but also match ground wire cables of different sizes, thereby improving the flexibility of the device. Compared with the general pressure plate fixing method, this method can better adapt to the size of the ground wire and avoid squeezing damage to the ground wire caused by excessive downward pressure. At the same time, the ground wire can always be kept in the middle position of the entire sensor 11, thereby improving the stability of the mutual inductance.

[0037] The telescopic device includes a telescopic rod 3, a limiting plate 31 and a telescopic spring 32. The telescopic rod 3 is slidably connected to the hollow ring 2 and a guide rib is provided on the side of the telescopic rod 3. The limiting plate 31 is provided on the side of the telescopic rod 3 away from the clamping plate 21. The telescopic spring 32 is sleeved on the telescopic rod 3 and located between the limiting plate 31 and the hollow ring 2; a ball 33 is also provided on the end of the telescopic rod 3 away from the clamping plate 21.

[0038] When the swivel 22 rotates, it will drive the toggle plate 23 to move. At this time, the toggle plate 23 will gradually squeeze the ball 33 at the end of the telescopic rod 3. At this time, the telescopic rod 3 will move to the center side of the hollow ring 2 due to the squeezing thrust. With the limit guide of the guide rib, the clamping plate 21 will gradually approach the ground cable and keep the ground cable in the middle position of the hollow ring 2. In this process, the telescopic spring 32 will be compressed by the squeezing of the limit plate 31. In this way, when the swivel 22 rotates in the opposite direction and the toggle plate 23 gradually cancels the squeezing of the telescopic rod 3, the expansion of the telescopic spring 32 will have a resetting effect on the telescopic rod 3, which can be more convenient for the subsequent secondary clamping needs.

[0039] The rotating ring 22 is a worm gear, and the adjuster includes a worm 4 and a handle 41. The handle 41 is fixed to the end of the worm 4. The worm 4 is rotatably connected to the hollow ring 2 through a connecting ear 42. A window 43 is opened on the side of the hollow ring 2, and the worm 4 is meshed and matched with the worm gear. During the rotation of the adjusting rotating ring 22, since the rotating ring 22 is a worm gear and is meshed and matched with the worm 4, the worm 4 will drive the worm gear to rotate during the rotation of the handle 41. Since the worm gear and the worm 4 have a good self-locking effect, after the adjustment of the toggle plate 23 is completed, it will limit the position of the toggle plate 23 to prevent it from automatically rotating, thereby ensuring that the position of the telescope is fixed and the ground cable is clamped by the clamping plate 21.

[0040] A tongue 5 is provided at the end of the toggle plate 23 away from the rotating ring 22, and a blocking plate 51 matching the tongue 5 is provided inside the hollow ring 2; the tongue 5 cooperates with the blocking plate 51 to limit the maximum extrusion stroke of the toggle plate 23 on the telescope, on the one hand to avoid the generation of strong abutment pressure between the components, and on the other hand to limit the position of the toggle plate 23, thereby preventing the toggle plate 23 from suddenly disconnecting from the telescope during the adjustment process.

[0041] Embodiment 2:

[0042] like Figure 5-6 As shown, it is a further improvement on the basis of the first embodiment, the upper end of the base 1 is provided with an outer protective cover 6 matching with the fixing mechanism and the plurality of sensors 11, the worm 4 rotates and penetrates the outer protective cover 6 and the handle 41 is located on the outside of the outer protective cover 6, and the front and rear ends of the outer protective cover 6 are both provided with connecting ports matching with the hollow ring 2; the connecting port is provided with a protector, and the protector is composed of at least three first protective plates 62 and three second protective plates 63, and the plurality of first protective plates 62 and the plurality of second protective plates 63 are all distributed in an annular shape and form a conical structure, and the plurality of first protective plates 62 and the plurality of second protective plates 63 are distributed in an overlapping manner inside and outside with the axis of the connecting port as the center, and the midlines of adjacent first protective plates 62 and second protective plates 63 differ by at least 120°, and the plurality of first protective plates 62 and the plurality of second protective plates 63 are all elastically connected to the outer protective cover 6.

[0043] The outer protective cover 6 can protect the sensor 11 and the fixing mechanism from being corroded by dust, debris or liquids from the outside. When the ground cable passes through the outer protective cover 6, the protector will shield and protect the gap between the ground cable and the outer protective cover 6.

[0044] In the initial state, since the plurality of first protective plates 62 and the plurality of second protective plates 63 are distributed overlappingly inside and outside, and the adjacent first protective plates 62 and second protective plates 63 are staggered, when the ground cable passes through the connecting port, the plurality of first protective plates 62 and the plurality of second protective plates 63 will be expanded, but since the plurality of first protective plates 62 and the plurality of second protective plates 63 are elastically connected to the outer protective cover 6, they will flip and tilt toward the axis of the connecting port in the initial state, so that the first protective plates 62 and the second protective plates 63 can be kept in a state of always actively fitting close to the ground cable, thereby achieving a certain protective shielding effect between the ground cable and the outer protective cover 6.

[0045] Embodiment three:

[0046] like Figure 7-8 As shown, it is a further improvement on the basis of the first embodiment, the base 1 is connected with four quick connectors in a rectangular distribution, the quick connector includes a joint and an unlocker, the joint is fixedly connected to the transmission tower, and the unlocker is arranged at the upper end of the base 1; the joint includes a fixing plate 7, a connecting column 71 and a locking member, the fixing plate 7 is fixedly connected to the fixing column and the fixing plate 7 is fixedly connected to the tower, the connecting column 71 has an opening facing a step cavity 72 away from the middle of the base 1, the locking member is arranged in the step cavity 72, the locking member includes a reset spring 73, a slide plate 74 and a locking tongue 75, the slide plate 74 is slidably arranged in the step cavity 72, the locking tongue 75 is connected to the slide plate 74 and extends out of the step cavity 72, the inclined end of the locking tongue 75 faces upward, the reset spring 73 is connected to the other end of the slide plate 74 and is located in the step cavity 72; the unlocker is a flap 8, the flap 8 is elastically hinged to the base 1, and the base 1 is provided with a baffle 81 and a handle 82 matching the hinged side of the flap 8.

[0047] Since the height of the transmission tower is relatively high, too much disassembly operation at high altitude is not conducive to the convenience and safety of the installation and maintenance personnel when installing the device. Therefore, at the beginning, the joint can be directly fixed to the transmission tower. When the base 1 is installed on the tower, it is connected through the matching hole on the base 1 and the joint. When the base 1 and the connecting column 71 of the joint are slidably connected, the locking tongue 75 will first be squeezed by the base 1 and retracted into the step cavity 72 until the base 1 completely passes over the locking tongue 75. At this time, the thrust of the reset spring 73 will make the locking tongue 75 extend again, wherein the distance between the lower end surface of the locking tongue 75 and the fixing plate 7 matches the thickness of the base 1. This can ensure that the locking tongue 75 and the fixing plate 7 can stably restrict and fix the base 1, thereby realizing the rapid connection and fixation of the device, avoiding the accidental drop of parts or tools caused by excessive operations at high altitude, and improving the stability of installation, disassembly and maintenance;

[0048] When the device needs to be disassembled for maintenance, it is only necessary to lift the two handles 82 with both hands at the same time, and then press the two flaps 8 at the same time. Since the flaps 8 are elastically hinged to the base 1, they will be away from the lock tongue 75 in the initial state. Therefore, during the active pressing of the flaps 8, the flaps 8 will squeeze the lock tongue 75, so that the lock tongue 75 is pushed back into the step cavity 72, so that the base 1 can be unlocked and disconnected from the connecting column 71.

[0049] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A power transmission line ground wire energy extraction device, comprising a base and a plurality of sensors, characterized in that: The base is provided with a fixing mechanism matching the sensor; The number of the fixing mechanisms is two and they are symmetrically arranged on the left and right sides of the sensors. The fixing mechanisms include a hollow ring, four clamping plates, four retractors, a swivel and an adjuster. The hollow ring is fixedly connected to the upper end of the base through a bracket. The four retractors are arranged on the inner ring side of the hollow ring in a ring shape and slide evenly. The four clamping plates are all located on the inner ring side of the hollow ring and correspond to the four retractors one by one. The swivel is rotatably arranged in the hollow ring and is provided with four toggle inclined plates matching the four retractors. The adjuster is arranged on the side of the hollow ring and connected to the swivel for matching. A plurality of sensor arrays are arranged on the upper end of the base, and the base is connected to the transmission tower by bolts; The telescopic device comprises a telescopic rod, a limiting plate and a telescopic spring, wherein the telescopic rod is slidably connected to the hollow ring and a guide rib is provided on the side of the telescopic rod, the limiting plate is provided on the side of the telescopic rod away from the clamping plate, and the telescopic spring is sleeved on the telescopic rod and located between the limiting plate and the hollow ring; The rotating ring is a worm wheel, and the regulator includes a worm and a handle, wherein the handle is fixedly arranged at the end of the worm, and the worm is rotatably connected to the hollow ring through a connecting ear, and a hollow window is opened on the side of the hollow ring, and the worm is meshed and matched with the worm wheel; The end of the shifting inclined plate away from the rotating ring is provided with a protruding tongue, and the interior of the hollow circular ring is provided with a blocking plate matching the protruding tongue.

2. A power transmission line ground wire energy harvesting device according to claim 1, characterized in that: A ball is also provided at one end of the telescopic rod away from the clamping plate.

3. A power transmission line ground wire energy harvesting device according to claim 1, characterized in that: An outer protective cover matching the fixing mechanism and the plurality of sensors is provided at the upper end of the base, the worm rotates through the outer protective cover and the handle is located outside the outer protective cover, and the front and rear ends of the outer protective cover are both provided with connecting openings matching the hollow ring.

4. A power transmission line ground wire energy harvesting device according to claim 3, characterized in that: The connecting port is provided with a protector, which is composed of at least three first protective plates and three second protective plates. Several of the first protective plates and several of the second protective plates are distributed in a ring shape and form a conical structure. Several of the first protective plates and several of the second protective plates are distributed in an overlapping manner inside and outside with the axis of the connecting port as the center, and the center lines of adjacent first protective plates and second protective plates differ by at least 120°. Several of the first protective plates and several of the second protective plates are elastically connected to the outer protective cover.

5. A power transmission line ground wire energy harvesting device according to claim 1, characterized in that: The base is connected with four quick connectors in a rectangular distribution. The quick connectors include a joint and an unlocker. The joint is fixedly connected to the power transmission tower. The unlocker is arranged at the upper end of the base.

6. A power transmission line ground wire energy harvesting device according to claim 5, characterized in that: The joint includes a fixing plate, a connecting column and a locking piece, the fixing plate is fixedly connected to the fixing column and the fixing plate is fixedly connected to the tower, the connecting column has an opening facing a step cavity away from the middle of the base, the locking piece is arranged in the step cavity, the locking piece includes a return spring, a slide plate and a locking tongue, the slide plate is slidably arranged in the step cavity, the locking tongue is connected to the slide plate and extends out of the step cavity, the inclined end of the locking tongue faces upward, and the return spring is connected to the other end of the slide plate and is located in the step cavity.

7. A power transmission line ground wire energy harvesting device according to claim 6, characterized in that: The unlocker is a flap, the flap is elastically hinged to the base, and the base is provided with a blocking piece and a handle matching the hinged side of the flap.

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