Lightning-proof overhead insulated wire

Abstract

The utility model discloses an overhead insulated wire capable of preventing lightning stroke, which comprises a conductor, the outer edge of the conductor is sleeved with an insulating skin, the top and the bottom of the insulating skin are respectively provided with two first insulating covers and two second insulating covers, the outer edges of the first insulating covers and the second insulating covers are respectively provided with a spiral groove, and the outer edges of the first insulating covers and the second insulating covers are provided with spiral grooves. Limiting grooves are formed in the positions, close to the front side and the rear side, of the bottom of the first insulating cover, limiting strips are movably inserted into inner cavities of the limiting grooves, the limiting strips are fixedly connected to the top of the second insulating cover, and an arc-shaped plate is fixedly connected to the position, close to the right side, of the top of the first insulating cover. According to the device, the first insulating cover and the second insulating cover which can be assembled are arranged, the first insulating cover and the second insulating cover are assembled on the outer side of the insulating skin, the insulating skin does not need to be specially manufactured, the manufacturing cost is greatly reduced, and the device has the function of preventing lightning fracture.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power, in particular to an overhead insulated wire capable of preventing lightning strikes. Background Art

[0002] With the rapid development of distribution networks, the reliability of distribution networks is facing new difficulties due to the influence of many factors such as tree coverage, severe corrosion, and strong winds in the power supply area. Facing the threat posed by nature to the distribution network, overhead insulated wires came into being. Compared with ordinary overhead bare wires, overhead insulated wires have many advantages and can solve some problems encountered by conventional bare wires during operation. The price is much cheaper than buried cables, so they have been widely used in distribution networks. When lightning strikes, existing overhead insulated wires are prone to breakage.

[0003] The existing Chinese patent CN211654347U is an overhead insulated conductor that can prevent 10kV power lines from being broken by lightning. When solving the above problems, a spiral gap is opened on the outside of the insulation skin, and a guide tube, a guide groove, a guide hole and a drainage hole are opened on the inside of the insulation skin. This operation method requires the insulation skin to be specially made, and the cost is extremely high, which is not suitable for popularization and use. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the utility model is to provide an overhead insulated conductor that can protect against lightning strikes.

[0005] One of the purposes of the utility model is achieved by the following technical solution:

[0006] An overhead insulated wire capable of protecting against lightning strikes comprises a conductor, wherein an outer edge of the conductor is sheathed with an insulating skin, and two first insulating covers and two second insulating covers are respectively provided on the top and bottom of the insulating skin, and spiral grooves are provided on the outer edges of the first insulating cover and the second insulating cover, and limiting grooves are provided on the bottom of the first insulating cover near the front and rear sides, and the inner cavity of the limiting groove is movably connected to a limiting strip, and the limiting strip is fixedly connected to the top of the second insulating cover, and an arc plate is fixedly connected to the top of the first insulating cover near the right side, and a connecting strip is fixedly connected to the inner side of the arc plate, and a connecting groove is provided on the top of the first insulating cover near the left side, and a plurality of guide grooves are provided on the inner walls of the first insulating cover and the second insulating cover.

[0007] Preferably, the connection grooves and the connection strips match each other, and the connection strips are movably plugged into the inner cavities of the adjacent connection grooves.

[0008] Preferably, the cross section of the limiting strip is an isosceles trapezoid, and the shorter side of the isosceles trapezoid structure faces upward.

[0009] Preferably, a plurality of the guide grooves are arranged in a circular array with the center of the conductor as the center.

[0010] Preferably, the two limit strips are front-to-back symmetrical with the central axis of the second insulating cover as the axis of symmetry.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model discloses an overhead insulated conductor capable of preventing lightning strikes. The device is provided with a first insulating cover and a second insulating cover that can be assembled. The first insulating cover and the second insulating cover are assembled on the outside of an insulating skin, and no special insulating skin is required, which greatly reduces the cost of the conductor while still having the function of preventing lightning strikes and fractures.

[0013] 2. The utility model provides an overhead insulated conductor that can protect against lightning strikes. Through the provision of connecting strips and connecting grooves, the first insulating cover can be moved into the installation position more quickly during assembly, thereby improving assembly efficiency. Through the provision of limiting grooves and limiting strips, the assembly of the first insulating cover and the second insulating cover is facilitated, thereby also improving assembly efficiency.

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a frontal stereogram of the utility model;

[0016] Figure 2 It is a front perspective view of the first insulating cover and the second insulating cover of the utility model;

[0017] Figure 3 For this utility model Figure 2 Exploded diagram of

[0018] Figure 4 It is a bottom perspective view of the first insulating cover of the utility model component;

[0019] Figure 5 It is a front perspective view of the second insulating cover of the utility model component.

[0020] Numbers in the figure: 1, conductor; 2, insulation skin; 3, first insulation cover; 4, second insulation cover; 5, limit groove; 6, limit strip; 7, arc plate; 8, connecting strip; 9, connecting groove; 10, guide groove; 11, spiral groove. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] See also Figure 1-5 The utility model provides a technical solution: an overhead insulated wire capable of preventing lightning strikes, comprising a conductor 1, an outer edge of the conductor 1 is sheathed with an insulating skin 2, two first insulating covers 3 and two second insulating covers 4 are respectively provided on the top and bottom of the insulating skin 2, spiral grooves 11 are provided on the outer edges of the first insulating cover 3 and the second insulating cover 4, limiting grooves 5 are provided near the front and rear sides of the bottom of the first insulating cover 3, the inner cavity of the limiting groove 5 is movably plugged with a limiting strip 6, the limiting strip 6 is fixedly connected to the top of the second insulating cover 4, the cross section of the limiting strip 6 is an isosceles trapezoid, and the shorter side of the isosceles trapezoid structure faces upward, and the two limiting strips 6 are symmetrical front and back with the central axis of the second insulating cover 4 as the symmetry axis,

[0025] An arc plate 7 is fixedly connected to the top of the first insulating cover 3 near the right side, and a connecting strip 8 is fixedly connected to the inner side of the arc plate 7. A connecting groove 9 is provided at the top of the first insulating cover 3 near the left side, and the connecting groove 9 matches the connecting strip 8. The connecting strip 8 is movably inserted into the inner cavity of the adjacent connecting groove 9. A plurality of guide grooves 10 are provided on the inner walls of the first insulating cover 3 and the second insulating cover 4. The plurality of guide grooves 10 are arranged in a circular array with the center of the conductor 1 as the center.

[0026] Working principle: The utility model is an overhead insulated conductor that can prevent lightning strikes. A plurality of first insulating covers 3 and second insulating covers 4 are installed on the outside of an insulating skin 2. The first insulating cover 3 is first placed on the top of the insulating skin 2, and then the second insulating cover 4 is horizontally moved, and the limiting strip 6 is aligned with the limiting groove 5. Then, the second insulating cover 4 is horizontally moved, and the second insulating cover 4 drives the limiting strip 6 to move in the inner cavity of the limiting groove 5 until the right side of the second insulating cover 4 is flush with the right side of the first insulating cover 3.

[0027] Then move another first insulating cover 3, insert the connecting strip 8 on the first insulating cover 3 into the inner cavity of the connecting groove 9 at the top of the previous first insulating cover 3, and then horizontally move another second insulating cover 4, and the second insulating cover 4 drives the limiting strip 6 to move in the inner cavity of the limiting groove 5 until the right side of the second insulating cover 4 is in contact with the previous second insulating cover 4;

[0028] By setting the connecting strip 8 and the connecting groove 9, the first insulating cover 3 can enter the installation position more quickly during assembly, thereby improving the assembly efficiency. By setting the limiting groove 5 and the limiting strip 6, the assembly of the first insulating cover 3 and the second insulating cover 4 is facilitated, thereby also improving the assembly efficiency.

[0029] In the above manner, a plurality of first insulating covers 3 and second insulating covers 4 are installed on the outer side of the insulating skin 2, so that when struck by lightning, the arc caused by the strong current advances along the spiral groove 11. Due to the existence of the spiral groove 11, the advancing distance is lengthened, so that the arc is gradually extinguished during the extension process, and the conductor 1 and the insulating skin 2 are not burned; on the other hand, the arc and heat advance along the guide groove 10 distributed in a straight line, so that the arc is guided and diverted, and the arc is continuously attenuated and finally extinguished. This embodiment effectively prevents lightning fracture;

[0030] The device is provided with an assemblable first insulating cover 3 and a second insulating cover 4, and the first insulating cover 3 and the second insulating cover 4 are assembled on the outside of the insulating skin 2. No special insulating skin 2 is required, which greatly reduces the cost while still having the function of preventing lightning strike and fracture.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0036] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An overhead insulated conductor capable of protecting against lightning strikes, comprising a conductor (1), the outer edge of the conductor (1) being sheathed with an insulating sheath (2), characterized in that: Two first insulating covers (3) and two second insulating covers (4) are respectively provided at the top and bottom of the insulating cover (2); spiral grooves (11) are provided on the outer edges of the first insulating cover (3) and the second insulating cover (4); limiting grooves (5) are provided at the bottom of the first insulating cover (3) near the front and rear sides; the inner cavity of the limiting groove (5) is movably connected to a limiting strip (6); the limiting strip (6) is fixedly connected to the top of the second insulating cover (4); an arc plate (7) is fixedly connected to the top of the first insulating cover (3) near the right side; a connecting strip (8) is fixedly connected to the inner side of the arc plate (7); a connecting groove (9) is provided at the top of the first insulating cover (3) near the left side; and a plurality of guide grooves (10) are provided on the inner walls of the first insulating cover (3) and the second insulating cover (4).

2. The lightning-proof overhead insulated conductor according to claim 1, characterized in that: The connection groove (9) and the connection strip (8) match each other, and the connection strip (8) is movably plugged into the inner cavity of the adjacent connection groove (9).

3. The overhead insulated conductor capable of protecting against lightning strikes according to claim 1, characterized in that: The cross section of the limiting strip (6) is an isosceles trapezoid, and the shorter side of the isosceles trapezoid structure faces upwards.

4. The lightning-proof overhead insulated conductor according to claim 1, characterized in that: A plurality of the guide grooves (10) are arranged in a circular array with the center of the conductor (1) as the center of the circle.

5. The overhead insulated conductor capable of protecting against lightning strikes according to claim 1, characterized in that: The two limit strips (6) are symmetrical front to back with the central axis of the second insulating cover (4) as the symmetry axis.

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