CN113488942B

CN113488942B - Stay wire protection device

Info

Publication number: CN113488942B
Application number: CN202110865069.0A
Authority: CN
Inventors: 肖峰; 杨军; 黄秀平; 刘自伟; 潘举; 曹骏; 王建宇; 郭超
Original assignee: Guangdong Power Grid Co Ltd; Shaoguan Power Supply Bureau Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Shaoguan Power Supply Bureau Guangdong Power Grid Co Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2023-01-17
Anticipated expiration: 2041-07-29
Also published as: CN113488942A

Abstract

The invention discloses a stay wire protection device which comprises a composite insulator and a protection shell. The composite insulator comprises a conductive rod and an insulating sleeve sleeved outside the conductive rod, and the conductive rod is connected with the pull wire in series; the protective housing comprises a first section and a second section which are connected with each other, the second section is arranged close to the ground, the protective housing is sleeved on the periphery of the composite insulator, and the protective housing can rotate around the composite insulator. Through set up composite insulator at the one end that acts as go-between near ground, utilize composite insulator's insulation support with conducting rod parcel in inside, reduce the response of electricity around acting as go-between, avoid the response to hurt people, effectively protect peripheral personal safety. The periphery of the composite insulator is provided with the protective shell, and the protective shell can rotate around the composite insulator under the action of external force such as wind power or biological gravity, so that reptiles such as vines or snakes around the stay wire are difficult to climb upwards around the outer wall of the stay wire protective device.

Description

Stay wire protection device

Technical Field

The invention relates to the field of electric power protection facilities, in particular to a stay wire protection device.

Background

The stay wire is a traction wire used for fixing the power transmission and distribution system rack, the stay wire is generally obliquely arranged, one end of the stay wire is fixed on the ground, and the other end of the stay wire is connected with the power distribution system rack.

In the prior art, a protective device is usually arranged outside a telegraph pole stay wire, the protective device can be in a bowl shape, the bowl-shaped protective device is arranged on the pole tower stay wire, a bowl opening faces the ground, and small animals cannot climb upwards continuously due to the blocking of the bowl opening, so that the protective effect is achieved; in addition, the protective cover can be arranged into a barrel, the two ends of the barrel are gradually reduced, and the barrel is provided with an opening which extends along the radial direction of the barrel and can be used for the pulling wire to pass through, so that the vines climb to the inside of the barrel from the lower port and do not climb upwards any more, and the vines are prevented from stretching upwards along the pulling wire to a certain extent.

As described above, the insulation problem of the protective device is not considered in the external protective device for guy wire in the prior art, so that the insulation of the protective cover in the prior art is poor, and if people move around the guy wire in densely populated areas such as urban centers, commercial areas, and dense industries, the induced electricity of the guy wire may cause personal injury. In addition, the rapid development of society requires that an electric power transmission line be provided on almost every land, and mountain areas are no exception. Due to the special geographical environment of the mountain area, various vines are everywhere, and the vines in the mountain area have stronger climbing capability and faster growth speed, so that the effect of the cylinder body with the two ends in the tapered shape is not ideal, and the plants can climb upwards along the stay wire to grow. Although it can be manually removed from the roots, in less than a few days, the new vines fill the transformer racks again. This not only can increase the maintenance cost of electric power system, still inevitably can cause distribution system ground fault, brings very big hidden danger for the safe operation of electric wire netting.

Disclosure of Invention

Based on the above, the invention aims to provide a stay wire protection device to solve the problem that people and animals and plants are induced to be electrically injured to interfere with an electric power system in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a pull-cord protection device comprising:

the composite insulator comprises a conductive rod and an insulating sleeve sleeved outside the conductive rod, and the conductive rod is connected with a pull wire in series;

the protective shell comprises a first section and a second section which are connected with each other, the second section is arranged close to the ground, the protective shell is sleeved on the periphery of the composite insulator, and the protective shell can wind the composite insulator to rotate.

As a preferable scheme of the guy wire protection device, the guy wire protection device further comprises a first bearing, wherein the first bearing comprises a first bearing inner ring and a first bearing outer ring which can rotate mutually, the first bearing inner ring is connected with the composite insulator, and the first bearing outer ring is connected with the protection shell.

As a preferred scheme of the stay wire protection device, the lower end of the conducting rod is convexly arranged outside the insulating sleeve, a support column is arranged in the protective shell, the second bearing comprises a second bearing inner ring and a second bearing outer ring which can rotate mutually, the second bearing inner ring is connected with the conducting rod outside the insulating sleeve, and the second bearing outer ring is connected with the support column.

As a preferred scheme of the stay wire protection device, stay wire connecting rings are arranged at two ends of the conducting rod and are connected with the stay wires.

As a preferred scheme of the guy wire protection device, one end of the insulating sleeve is convexly arranged on the first section.

As a preferable scheme of the guy wire protection device, the first section is a transparent section, and the composite insulator is at least partially arranged in the transparent section.

As a preferred scheme of the guy wire protection device, the second section is arranged to be a shading section, one end of the shading section is connected with the first section, and the other end of the shading section is an opening facing the ground.

As a preferable scheme of the guy wire protection device, the shading section comprises a first shading section and a second shading section which are connected with each other, the first shading section is connected with the first section, and the diameter of the second shading section is larger than that of the first section.

As a preferable scheme of the guy wire protection device, the diameter of the end, connected with the first section, of the first shading section is the same as that of the first section, the diameter of the end, connected with the second shading section, of the first shading section is the same as that of the second shading section, and the diameter of the first shading section is uniformly changed along the axial direction of the first shading section.

As a preferred scheme of the stay wire protection device, a driving fan is arranged on the periphery of the protective shell and used for driving the protective shell to rotate around the composite insulator.

The beneficial effects of the invention are as follows:

the invention provides a stay wire protection device which aims to solve the problem that induction electricity hurts people and animals and plants in the prior art to interfere an electric power system. Through set up composite insulator at the one end of acting as go-between near ground, utilize composite insulator's insulation support with the conducting rod parcel inside, can reduce the response electricity around acting as go-between, avoid the response electricity to hinder the people, effectively protect peripheral personnel safety. The protective shell is arranged at the periphery of the composite insulator, and the protective shell can rotate around the composite insulator under the action of external force such as wind power or biological gravity, so that reptiles such as vines or snakes around the stay wire are difficult to climb upwards around the outer wall of the stay wire protective device.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings may be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic view of a pull-off line protection device provided in accordance with an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a first bearing according to an embodiment of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;

fig. 4 is a schematic view of a stay wire protection device provided by the third embodiment of the present invention.

In the figure:

1-a composite insulator; 11-a conductive rod; 12-an insulating sleeve; 13-stay wire connecting ring;

2-a protective housing; 21-a support column; 22-a transparent segment; 23-a light-shielding section; 231 — a first light shielding section; 232-a second light shield section; 24-driving a fan;

3-a first bearing; 31-first bearing inner ring; 32-a first bearing outer ring;

4-a second bearing; 41-second bearing inner ring; 42-second bearing outer ring.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

As shown in fig. 1, the present embodiment provides a stay wire protection device, which includes a composite insulator 1, where the composite insulator 1 is disposed at one end of a stay wire close to the ground. Specifically, the composite insulator 1 includes a conductive rod 11 and an insulating sleeve 12 sleeved outside the conductive rod 11. The conducting rod 11 is connected with the stay wire in series, and the conducting rod 11 is usually made of copper material, and can be specifically divided into brass and red copper according to different high-voltage and low-voltage conducting requirements. For example, the present embodiment takes a low-voltage conductive scene as an example, and the conductive rod 11 is made of brass in the present embodiment. The insulating material suitable for the insulating sleeve 12 is also very wide, and ceramic, plastic or rubber can be selected generally, but not limited thereto. The wall of the insulating sleeve 12 is also provided with folded structures such as an umbrella skirt, the structures can increase the creepage distance of the insulating sleeve 12, and prevent the insulating material from being electrically polarized, so that the insulating material is electrified. So set up, utilize composite insulator 1's insulating sleeve 12 to wrap up conducting rod 11 inside, reduce the response electricity around acting as go-between, avoid the response electricity injury people around acting as go-between, effectively protect peripheral personnel safety. Preferably, the conducting rod 11 and the insulating sleeve 12 are coaxially arranged, so that the same radial creepage distance is ensured, and the reliability of the composite insulator 1 is enhanced.

In order to realize the connection between the stay wire and the conducting rod 11, the composite insulator 1 is further provided with a stay wire connecting ring 13, and compared with the prior art in which the stay wire connecting ring 13 is connected with the conducting rod 11 and the stay wire by welding, the stay wire connecting ring is more convenient and detachable. The wire connecting rings 13 are provided at both ends of the conductive rod 11, and the wire connecting rings 13 are extended from the end of the insulating sleeve 12 for operating the serial connection of the wires, providing a more convenient connection manner for the wires and the conductive rod 11. When in use, the conducting rod 11 is arranged at one end close to the ground in the middle of the stay wire, wherein the lower end of the conducting rod 11 is connected with the stay wire at the end close to the ground, and the stay wire is connected with the conducting rod 11 in series through stay wire connecting rings 13 at two ends of the conducting rod 11.

With reference to fig. 1, the stay wire protection device further includes a protection housing 2, the protection housing 2 is sleeved on the periphery of the composite insulator 1, and the protection housing 2 can rotate around the composite insulator 1. The whole protective shell 2 can rotate around the composite insulator 1 under the action of external force such as wind power or biological gravity, so that reptiles such as vines or snakes around the stay wire are difficult to climb upwards around the outer wall of the stay wire protective device. Preferably, the protective shell 2 is arranged coaxially with the composite insulator 1, so that the rotation axis of the protective shell 2 coincides with the geometric axis of the device of the composite insulator 1, and the rotation resistance is reduced.

To achieve rotation of the protective housing 2 relative to the composite insulator 1, the pull-string protection device further comprises a first bearing 3. As shown in fig. 1 and 2, the first bearing 3 includes a first bearing inner ring 31 and a first bearing outer ring 32 that are rotatable with respect to each other, the first bearing inner ring 31 is connected to the insulating sleeve 12 of the composite insulator 1, and the first bearing outer ring 32 is connected to the protective housing 2. It should be noted that fig. 2 is only illustrative of the necessary features of the bearing, and the specific type of bearing is not limited thereto.

Further, with continued reference to fig. 1, the protective housing 2 comprises a first section and a second section connected to each other, wherein the first section is a transparent section 22, and the composite insulator 1 is partially disposed within the transparent section 22. The transparent section 22 of the protective device 2 guides the growth direction of the plants inside the protective housing 2 by utilizing the characteristic of the plants growing towards light.

Preferably, the second segment is a light shielding segment 23, one end of the light shielding segment 23 is connected with the transparent segment 22, and the other end is an opening facing the ground. The growth speed of plants in the protective shell 2 is restrained by utilizing the dark condition of the shading section 23, the plants are further limited to climb upwards along the stay wires, and the potential safety hazard of vine plants to power supply facilities is eliminated.

There are many ways to implement the shading scheme of the shading section 23, which cannot be exhaustive, and several common arrangements are exemplarily indicated. Firstly, the shading section 23 and the transparent section 22 are integrally formed by adopting transparent materials, and then the outer surface or the inner surface of the shading section 23 is pasted with a reflective sticker; secondly, the shading section 23 and the transparent section 22 are made of the same material and are integrally formed by materials with different colors, for example, the transparent section 22 is made of transparent ABS plastic, and the shading section 23 is made of black ABS plastic; thirdly, the light shielding section 23 and the transparent section 22 are made of different materials, and the light shielding section 23 itself is made of a light-proof material, such as a metal material. Such connections include, but are not limited to, splicing, snapping, bonding, screwing, welding, and the like.

Specifically, the light shielding section 23 of the protective housing 2 includes a first light shielding section 231 and a second light shielding section 232 connected to each other, the first light shielding section 231 is connected to the transparent section 22, and the diameter of the second light shielding section 232 is larger than that of the transparent section 22. The diameter of the second shading section 232 is large, so that the reptiles such as snakes can be blocked, and the reptiles such as snakes are prevented from climbing upwards along the pull line.

Further, the diameter of the end of the first light shielding section 231 connected with the transparent section 22 is the same as that of the transparent section 22, the diameter of the end of the first light shielding section 231 connected with the second light shielding section 232 is the same as that of the second light shielding section 232, and the diameter of the first light shielding section 231 is uniformly changed along the axial direction. Preferably, in this embodiment, the first light shielding section 231 has a truncated cone shape. When the plants in the light shielding section 23 grow from the second light shielding section 232 to the first light shielding section 231, the growing space of the plants is compressed along with the uniform change of the diameter of the first light shielding section 231, and the growth of the plants is further limited; the round platform is not beneficial to climbing.

In this embodiment, in order to drive the protective housing 2 to rotate relative to the composite insulator 1, the periphery of the protective housing 2 is provided with the driving fan 24 for driving the protective housing 2 to rotate around the composite insulator 1, and the driving fan 24 includes two semicircular fan blades, so that the weight is light, the driving fan can rotate under the action of natural wind, and the structure is simple, the cost is low, and the driving fan is suitable for mass production. In the present embodiment, the driving fan 24 is plural in number and is uniformly arranged on the outer surface of the second light shielding section 232. The second light shielding section 232 has a large outer surface area, and facilitates the arrangement of a plurality of driving fans 24. Meanwhile, the driving fan 24 is far away from the light-transmitting section 22, so that the driving fan 24 is prevented from influencing the light-transmitting effect of the upper light-transmitting section 22. Preferably, the driving fan 24 is made of ABS plastic, so that the driving fan 24 has chemical corrosion resistance, heat resistance, high elasticity, toughness and the like, and is cheap and convenient for mass production. In other embodiments, the driving fan 24 may not be provided for cost saving, and the protective housing 2 may rotate around the composite insulator 1 under the influence of the gravity of the climbing animal when the animal climbs.

With continued reference to fig. 3, in order to make the fit between the composite insulator 1 and the protective shell 2 more stable, the lower end of the conductive rod 11 is protruded to the outside of the insulating sleeve 12, and the cable guard is further provided with a second bearing 4. The second bearing 4 is matched with the conducting rod 11 to further clamp the conducting rod 11, so that the composite insulator 1 is more stably installed. The arrangement that the lower end of the conducting rod 11 is convexly arranged outside the insulating sleeve 12 also reduces the distance that an installer stretches the stay wire into the protective shell 2, so that the conducting rod 11 and the stay wire can be conveniently assembled.

Illustratively, to realize the installation of the bearing 4, as shown in fig. 1 and 3, a support column 21 is arranged in the protective casing 2, the second bearing 4 comprises a second bearing inner ring 41 and a second bearing outer ring 42 which can rotate mutually, the second bearing inner ring 41 is connected with the conductive rod 11 outside the insulating sleeve 12, and the second bearing outer ring 42 is connected with the support column 21. Further, the supporting column 21 is made of an insulating material and is integrally formed with the protective housing 2. Specifically, in the present embodiment, the supporting column 21 is a rigid cylindrical structure and extends inward from the inner wall of the transparent segment 22, but the present embodiment is only an example and does not limit the shape thereof. In other embodiments, the supporting column 21 may be a direction column, a triangle, a net, etc., and may be disposed on the light shielding section 23 according to the use requirement. Further, in order to ensure the supporting strength of the supporting columns 21, in the present embodiment, four supporting columns 21 are uniformly arranged along the circumference of the transparent section 22.

The second embodiment:

the difference between the present embodiment and the first embodiment is that the driving fan 24 is replaced by a bird repeller. Preferably, drive the bird ware and set up to three, three drive the bird ware and evenly arrange on the outer wall of shading section 23, owing to drive the protruding shading section 23 of locating of bird ware, so can make protective housing 2 can be rotatory around composite insulator 1 under the wind-force effect, can also drive the bird when placing the climbing of animal and plant. Furthermore, a reflecting cover or a mirror is arranged on the bird repeller, the reflecting cover or the mirror can realize dynamic reflecting effect along with the rotation of the bird repeller to disperse surrounding small animals, and meanwhile, warning can be provided for people.

Example three:

as shown in fig. 4, the difference of the first embodiment is that the outer wall of the first light shielding section 231 is configured to be an inward concave structure, so as to further compress the growth space of the plants in the light shielding section 23, and limit the plants to climb upwards along the pull line, thereby eliminating the potential safety hazard brought by vine plants to the power supply facility, and meanwhile, the arrangement is more inconvenient for the reptiles to climb upwards along the outer wall of the protective housing 2.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A pull-cord guard, comprising:

the composite insulator (1) comprises a conductive rod (11) and an insulating sleeve (12) sleeved on the outer side of the conductive rod (11), wherein the conductive rod (11) is connected with a pull wire in series;

the protective shell (2) comprises a first section and a second section which are connected with each other, the second section is arranged close to the ground, the protective shell (2) is sleeved on the periphery of the composite insulator (1), and the protective shell (2) can rotate around the composite insulator (1); the first section is arranged as a transparent section (22), and the composite insulator (1) is at least partially arranged in the transparent section (22); the second section is set to be a shading section (23), one end of the shading section (23) is connected with the first section, and the other end of the shading section is an opening facing the ground.

2. A pull wire protector according to claim 1, characterized in that it further comprises a first bearing (3), the first bearing (3) comprising a first bearing inner ring (31) and a first bearing outer ring (32) that are mutually rotatable, the first bearing inner ring (31) being connected to the composite insulator (1) and the first bearing outer ring (32) being connected to the protective casing (2).

3. A pull wire protector according to claim 1, characterized in that the lower end of the conducting rod (11) protrudes outside the insulating sleeve (12), a support column (21) is arranged in the protective housing (2), the second bearing (4) comprises a second bearing inner ring (41) and a second bearing outer ring (42) which are mutually rotatable, the second bearing inner ring (41) is connected with the conducting rod (11) outside the insulating sleeve (12), and the second bearing outer ring (42) is connected with the support column (21).

4. A pull-off protector according to claim 1, characterized in that both ends of the conducting rod (11) are provided with pull-off connection rings (13), the pull-off connection rings (13) being connected to the pull-off.

5. A pull-off protector according to claim 1, characterized in that one end of the insulating sleeve (12) is provided protruding from the first section.

6. A pull-wire guard according to claim 5, characterized in that the light shielding section (23) comprises a first light shielding section (231) and a second light shielding section (232) connected to each other, the first light shielding section (231) being connected to the first section, the second light shielding section (232) having a larger diameter than the first section.

7. A pull-cord guard according to claim 6, characterised in that the end of the first light shielding section (231) connected to the first section is of the same diameter as the first section, the end of the first light shielding section (231) connected to the second light shielding section (232) is of the same diameter as the second light shielding section (232), and the diameter of the first light shielding section (231) varies uniformly along its axial direction.

8. A pull wire protector according to claim 1, characterized in that the protective shell (2) is provided with a driving fan (24) at its periphery for driving the protective shell (2) in rotation around the composite insulator (1).