Windproof and anti-icing convenient insulation device capable of live working

Abstract

The utility model relates to a windproof and anti-icing convenient insulating device capable of live working, which comprises a lower-end metal accessory, an insulating body is arranged on the upper part of the lower-end metal accessory, and an upper-end fitting is arranged on the upper part of the insulating body; the upper part of the upper-end fitting is connected with a gland through a rotating shaft; the buckling part of the upper end fitting and the gland is provided with an arc-shaped groove for installing a high-voltage wire, and the arc-shaped groove is a silicone rubber cushion layer. An operation screw rod penetrating through the gland is mounted at the end, far away from the silicone rubber cushion layer, of the upper-end fitting; and a compression spring is sleeved on the operation screw rod between the upper end fitting and the gland. According to the insulator, the diameter of the upper umbrella cover is increased, so that the influence of dust, foreign matters or icing in severe weather on the insulator is avoided; lines can be maintained by live-line operation, and safe operation and maintenance of the lines are facilitated; the wire fixing structure can effectively avoid the problems of wire loosening and wire insulating layer abrasion caused by strong wind.

Description

Technical Field

[0001] This utility model relates to the field of wire bonding technology, and in particular to a windproof and ice-proof, convenient insulating device for live-line operation. Background Technology

[0002] Currently, power distribution networks primarily use outdoor overhead lines, which rely on poles topped with post-type insulators to support the power conductors. These post-type insulators must not only withstand the mechanical stress of supporting the conductors but also provide insulation between the conductors and the poles. Ordinary post-type insulators present the following problems in application:

[0003] Insulators are connected to the top of the pole by bolts. In strong winds, the insulators rotate around the top of the pole, which can cause the conductor to fall off the insulator, as well as cause wear on the insulation layer, leakage, and potential danger.

[0004] According to a public notice regarding a composite post insulator that allows for live-line work (application number: 202221576351.3), the aforementioned application uses a positioning structure and a wire-laying hole to fix high-voltage lines erected at high altitudes. When strong winds cause the high-voltage lines to sway, the high-voltage lines compress the springs, which act as shock absorbers and buffers, thus improving the stability of the fixed high-voltage lines.

[0005] However, the high-voltage line where the porcelain insulator is installed is subjected to wind vibration, which causes the insulation layer to wear and expose the high-voltage conductor. In addition, the overall structure is not designed for anti-icing conditions, and under severe icing conditions, it is very easy for the external insulation and mechanical strength to fail. At the same time, dust and foreign objects can easily fall onto the umbrella cover. Utility Model Content

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] This utility model provides a windproof and ice-proof, convenient insulating device for live-line work, comprising: a lower metal attachment, an insulator mounted on the upper part of the lower metal attachment, the insulator including a support core, and multiple umbrella sleeves provided on the support core; an upper hardware is mounted on the upper part of the insulator; the outer diameter of the umbrella sleeves away from the lower metal attachment is larger than the outer diameter of the umbrella sleeves close to the lower metal attachment;

[0008] The upper part of the upper fitting is connected to a pressure cap via a pivot; the upper fitting and the pressure cap fastening parts are respectively provided with arc-shaped grooves for installing high-voltage wires, and the arc-shaped grooves are made of silicone rubber pads; the pressure cap and the upper fitting are made of aluminum alloy.

[0009] As a further improvement, an operating screw passing through the pressure cap is installed on the upper hardware at the end away from the silicone rubber pad; a compression spring is fitted on the operating screw between the upper hardware and the pressure cap.

[0010] As a further improvement, the support core is a composite material structure.

[0011] As a further improvement, the upper hardware is provided with a threaded hole corresponding to the compression spring.

[0012] As a further improvement, the pressure cap is provided with a threaded hole corresponding to the compression spring.

[0013] As a further improvement, the operating screw is provided with a handle.

[0014] The above-mentioned technical solution of this utility model has the following beneficial effects: the insulator has an enlarged upper sheath diameter design, which avoids the impact of dust, foreign objects and icing in severe weather on the insulator; it allows for live operation and maintenance of the line, facilitating safe operation and maintenance of the line; after the conductor is fixed, the upper part of the device that contacts the conductor has an open-loop structure and is made of aluminum alloy, which makes it difficult to generate induced current inside, thus avoiding heat loss. At the same time, the part that contacts the conductor is designed with a silicone rubber pad, which further ensures the formation of the open-loop structure and also avoids wear of the conductor insulation layer caused by vibration due to wind. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a windproof, ice-proof, and convenient insulating device for live-line operation according to the present invention;

[0016] Figure 2 This is a schematic diagram of the overall structure of a windproof, ice-proof, and convenient insulating device for live-line work according to the present invention.

[0017] Figure 3 This is a front view of a windproof, ice-proof, and convenient insulating device for live-line work according to the present invention;

[0018] Figure 4 This is a side view of a windproof, ice-proof, and convenient insulating device for live-line operation according to the present invention.

[0019] Figure 5 This is a top view of a windproof, ice-proof, and convenient insulating device for live-line operation according to the present invention. Detailed Implementation

[0020] The following embodiments further illustrate the content of this utility model, but should not be construed as limiting the utility model. Any modifications or substitutions made to the methods, steps, or conditions of this utility model without departing from its spirit and essence are within the scope of this utility model.

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings and examples.

[0022] Please see Figure 1-5 As shown, this utility model discloses a windproof and ice-proof, convenient insulating device for live-line work, comprising: a lower metal attachment 7, with an insulator installed on the upper part of the lower metal attachment 7; the insulator includes a support core 6, and a plurality of umbrella sleeves 5 are provided on the support core 6; the outer diameter of the umbrella sleeves 5 away from the lower metal attachment 7 is larger than the outer diameter of the umbrella sleeves 5 close to the lower metal attachment 7;

[0023] The insulator is equipped with an upper fitting 3; the upper part of the upper fitting 3 is connected to a pressure cap 1 via a rotating shaft; the upper fitting 3 and the pressure cap 1 are respectively provided with arc-shaped grooves for installing high-voltage wires at their fastening parts, and the arc-shaped grooves are silicone rubber pads 8; the pressure cap 1 and the upper fitting 3 are made of aluminum alloy.

[0024] In some embodiments of this utility model, an operating screw 4 passing through the pressure cap 1 is installed on the upper end of the fitting 3 away from the silicone rubber pad 8; a compression spring 2 is sleeved on the operating screw 4 between the upper end fitting 3 and the pressure cap 1. In actual application, the compression spring 2 is always in a compressed state during the adjustment of the distance between the pressure cap 1 and the upper end fitting 3. After the high-voltage wire is placed in, this allows the crossbar or plate connected to the operating screw 4 on the pressure cap 1 to be pressed down. Since the crossbar or plate is fixedly connected to the pressure cap 1, the pressure of the spring is transmitted to the pressure cap 1 through the crossbar or plate, thereby making the high-voltage wire more stable and secure in the arc-shaped groove. The upper part of the operating screw 4 passing through the pressure cap 1 can be fixedly connected with a protrusion or other structure with an outer diameter larger than the operating screw 4; this is not limited here. Such a structure can be welded or... Figure 5 As shown, the operating screw 4 has a through hole on its upper side, into which a chisel 41 is inserted. A limiting piece 42 is fitted on the operating screw 4 between the chisel 41 and the pressure cap 1, thus preventing the top of the operating screw 4 from being rotated into the pressure cap 1 or between the pressure cap 1 and the upper hardware 3. Similarly, the part of the upper hardware 3 that passes through the operating screw 4 is also provided with a crossbar or cross plate.

[0025] In some embodiments of this utility model, the support core 6 is a composite material structure.

[0026] In some embodiments of this utility model, the upper hardware 3 is provided with a threaded hole corresponding to the compression spring 2.

[0027] In some embodiments of this utility model, the pressure cap 1 is provided with a threaded hole corresponding to the compression spring 2.

[0028] In some embodiments of this utility model, the operating screw 4 is provided with a handle.

[0029] In this utility model, the insulator device consists of eight parts: a pressure cap 1, a compression spring 2, an upper hardware 3, an operating screw 4, a sheath 5, a support core 6 (made of composite material), a lower hardware accessory 7, and a silicone rubber pad 8. The part in contact with the conductor is designed with a silicone rubber pad 8, which further ensures the formation of the open-loop structure and also avoids wear on the conductor insulation layer caused by vibration due to wind.

[0030] The operating screw 4 is assembled onto the upper fitting 3, and together with the pressure cap 1 and compression spring 2, forms an adjustable wire-fixing assembly. Both the upper fitting 3 and the pressure cap 1 have arc-shaped grooves that cooperate to fix the wire, forming a robust wire-fixing structure. Simultaneously, both the upper fitting 3 and the pressure cap 1 have silicone rubber pads 8 to enhance the friction between them and the insulated wire. The opening size of the pressure cap 1 can be adjusted using a live operating lever, suitable for wires with a cross-sectional area of ​​50-240 mm². During the tightening operation, the operating screw 4 applies a certain amount of elasticity to the pressure cap 1, which can, to some extent, prevent the operating screw 4 from loosening due to wire vibration, thus preventing the wire insulation layer from wearing away and the high-voltage conductor from being exposed.

[0031] The support core 6 is made of composite material, with one end crimped to the upper fitting 3 and the other end crimped to the lower fitting accessory 8. A vulcanized silicone rubber insulating sheath 5 in the middle of the support core provides sufficient creepage distance. The sheath near the upper fitting has a larger outer diameter, effectively preventing dust and foreign objects from falling onto the lower sheath. It also protects the lower sheath from moisture icing due to weather conditions.

[0032] The method of using the windproof, ice-proof, and convenient live-line working insulating device of this utility model includes the following steps:

[0033] Adjust the distance between the arc-shaped grooves of the silicone rubber pad 8 by rotating the handle on the operating screw 4, that is, adjust the distance between the pressure cap 1 and the upper hardware 3, and adjust it to a distance where the high-voltage wire can be placed.

[0034] Place the high-voltage wire into the arc-shaped groove of the silicone rubber pad 8, and then adjust the operating screw 4 to press the silicone rubber pad 8 on the cover 1 and the upper hardware 3 to the high-voltage wire.

[0035] When you want to release the high-voltage wire, adjust the handle on the operating screw 4 to move the arc-shaped grooves on the pressure cap 1 and the upper hardware 3 away from each other, and then take out the high-voltage wire.

[0036] During the process of adjusting the distance between the pressure cap 1 and the upper hardware 3, the compression spring 2 is always in a compressed state.

[0037] In some embodiments of this utility model, a hinged lever mechanism is used, supplemented by a threaded self-locking anti-loosening snap-fit ​​structure, to fix and install overhead conductors. The fixing structure is stable, the multiple anti-loosening measures ensure stability, and the application effect is easily standardized, avoiding variations in binding methods from different individuals. After use, it ensures that the relevant power conductors are firmly and stably secured and not easily loosened.

[0038] In some embodiments of this utility model, the conductor fixing structure is an integrally molded component with high overall strength, capable of withstanding a 6kN horizontal force perpendicular to the conductor (Note: 6kN is 2.5 times the theoretical force acting on the conductor at a typhoon wind speed of 55m / s) without loosening. It has excellent wind resistance.

[0039] In some embodiments of this utility model, the outer insulating umbrella cover structure adopts a combination of large and small umbrellas, with an extra-large umbrella at the top, which can not only block dust and foreign objects, but also protect the lower umbrella skirt from the effects of moisture freezing, so that the whole device has anti-icing capability.

[0040] In some embodiments of this invention, the top fixing device is driven by a rotating screw, and the lower end of the screw is designed with an operating ring for live-line work, which can perfectly match various insulated operating rods on the market. The process of fixing and loosening the wire is driven by rotating the operating rod. This is very convenient and safe, especially in live-line work using the insulated rod method.

[0041] In some embodiments of this utility model, after the wire is fixed, the upper part of the device that contacts the wire has an open-loop structure (the part where the cover and the upper hardware fasten together, i.e., the part with the silicone rubber pad 8), and is made of aluminum alloy, which makes it difficult for induced current to be generated inside, thus avoiding heat loss. The silicone rubber pad designed in the part that contacts the wire further ensures the formation of the open-loop structure and also avoids wear on the wire insulation layer caused by vibration due to wind.

[0042] In some embodiments of this utility model, the construction process is simple, saving time and effort.

[0043] In summary, the enlarged diameter of the upper sheath of this insulator avoids the impact of dust, foreign objects, and icing in severe weather on the insulator; it allows for live operation and maintenance of the line, facilitating safe operation and maintenance; after the conductor is fixed, the upper part of the device that contacts the conductor has an open-loop structure and is made of aluminum alloy, which makes it difficult for induced current to be generated inside, avoiding heat loss. At the same time, the silicone rubber pad layer designed in the contact part with the conductor further ensures the formation of the open-loop structure and also avoids wear of the conductor insulation layer caused by vibration due to wind.

[0044] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A windproof and ice-proof, convenient insulating device for live-line work, comprising: The lower metal accessory (7) is characterized in that an insulator is installed on the upper part of the lower metal accessory (7), the insulator includes a support core (6), and a plurality of umbrella sleeves (5) are provided on the support core (6); the outer diameter of the umbrella sleeve (5) away from the lower metal accessory (7) is larger than the outer diameter of the umbrella sleeve (5) close to the lower metal accessory (7); The insulator is equipped with an upper fitting (3), and the upper part of the upper fitting (3) is connected to a pressure cap (1) via a rotating shaft; the upper fitting (3) and the pressure cap (1) are respectively provided with arc-shaped grooves for installing high-voltage wires at their fastening parts, and the arc-shaped grooves are made of silicone rubber pads (8); the pressure cap (1) and the upper fitting (3) are made of aluminum alloy.

2. The windproof and ice-proof, convenient-to-operate-on-line insulating device according to claim 1, characterized in that, An operating screw (4) passing through the pressure cap (1) is installed on the upper end fitting (3) at the end away from the silicone rubber pad (8); a compression spring (2) is sleeved on the operating screw (4) between the upper end fitting (3) and the pressure cap (1).

3. The windproof and ice-proof, convenient-to-operate-on-line insulation device according to claim 1, characterized in that, The support core (6) is a composite material structure.

4. The windproof and ice-proof, convenient-to-operate-on-line insulation device according to claim 2, characterized in that, The upper fitting (3) is provided with a threaded hole corresponding to the compression spring (2).

5. A windproof, ice-proof, and convenient insulating device for live-line work according to claim 2, characterized in that, The pressure cap (1) is provided with a threaded hole corresponding to the compression spring (2).

6. A windproof, ice-proof, and convenient insulating device for live-line work according to claim 2, characterized in that, The operating screw (4) is equipped with a handle.

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