Mounting structure of duplex insulator string

Abstract

The utility model relates to a mounting structure of a duplex insulator chain, which comprises an upper yoke plate, a lower yoke plate and two insulator chains connected between the upper yoke plate and the lower yoke plate in parallel left and right, two ends of the two insulator chains are connected with protective connecting devices, and each protective connecting device comprises a lower connecting seat and an upper connecting seat. The insulator string is arranged between the lower connecting seat and the upper connecting seat, and the lower connecting seat and the upper connecting seat are locked through a plurality of bolts; according to the utility model, the end parts of the two insulator strings which are spaced left and right are connected with the protective connecting device, so that when one insulator string is accidentally broken, the insulator string can be pulled through the protective connecting device to prevent the insulator string from falling down, and the stability of the duplex insulator string after installation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power fittings, and particularly relates to an installation structure of a double insulator string. Background Art

[0002] The Chinese patent publication number is: CN205723014U, and a single suspension point strain string announced on November 23, 2016. The key points of its technical solution include a U-shaped hanging ring, an extension ring, a U-shaped hanging ring, a coupling plate, a Z-shaped hanging buckle, a ball head hanging ring, an insulator string group, a bowl head hanging buckle, a coupling plate, a Z-shaped hanging plate, a parallel hanging plate, and a wedge-shaped strain clamp. The coupling plate is connected to the Z-shaped hanging buckle by bolts. The Z-shaped hanging buckle is provided with a limiting structure that abuts against the coupling plate. The bowl head hanging buckle is connected to the coupling plate by bolts. The bowl head hanging buckle is provided with a limiting structure that abuts against the coupling plate. Under the action of each limiting structure, the Z-shaped hanging buckle and the coupling plate, as well as the bowl head hanging buckle and the coupling plate, are fixedly connected, and cooperate with the insulator string group to form a stable rectangular structure, thereby avoiding small-angle torsion of the insulator string under unfavorable working conditions and being beneficial to maintaining the connection strength between the core rod and the end fittings. However, once a problem occurs at the single suspension point, it will not be able to hold the conductor within one span, resulting in the conductor and the insulator string falling into the important three-span section below together, which will cause serious impacts and low safety. Content of the Utility Model

[0003] The utility model aims to solve at least one of the problems existing in the related prior art to some extent. For this purpose, the utility model provides an installation structure of a double insulator string.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] An installation structure of a double insulator string includes an upper coupling plate, a lower coupling plate, and two insulator strings that are horizontally and parallelly connected between the upper coupling plate and the lower coupling plate. Protective connection devices are connected to both ends of the two insulator strings. The protective connection device includes a lower connection seat and an upper connection seat. The insulator string is arranged between the lower connection seat and the upper connection seat, and the lower connection seat and the upper connection seat are locked by several bolts.

[0006] In some embodiments, convex rings are provided at both ends of the insulator string. A lower arc-shaped groove is provided at the upper end of the lower connection seat, and an upper arc-shaped groove is provided at the lower end of the upper connection seat. The convex rings are arranged in the lower arc-shaped groove and the upper arc-shaped groove.

[0007] In some embodiments, rubber pads are provided in both the lower arc-shaped groove and the upper arc-shaped groove.

[0008] In some embodiments, a connecting member is provided on one side of the lower connecting base, and a connecting seat is provided at one end of the connecting member, and the connecting seat is fixedly connected to the upper connecting plate or the lower connecting plate.

[0009] In some embodiments, both ends of the insulator string are connected to the upper connecting plate or the lower connecting plate through bowl-shaped hanging rings.

[0010] In some embodiments, a hanging ring assembly is provided at the upper end of the upper connecting plate.

[0011] In some embodiments, an adjusting plate is connected to the lower end of the lower connecting plate through a U-shaped hanging ring.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] By connecting a protective connection device to the ends of two insulator strings spaced left and right, when an accident occurs and one of the insulator strings breaks, it can still be pulled by the protective connection device to prevent it from falling down, thereby improving the stability of the double-circuit insulator string after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a partial exploded schematic diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following specific implementation content provides various different embodiments or examples for implementing the present utility model. Of course, these are only embodiments or examples and are not intended to be restrictive. Additionally, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters of reference. These repetitions are for the purpose of simply and clearly describing the present utility model and do not represent a specific relationship between the different embodiments and / or structures being discussed.

[0017] As Figure 1 - Figure 2 shown, an installation structure of a double-circuit insulator string includes an upper connecting plate 1, a lower connecting plate 2, and two insulator strings 3 connected in parallel between the upper connecting plate 1 and the lower connecting plate 2, and protective connection devices 10 are connected to both ends of the two insulator strings 3.

[0018] Thus, through the arrangement of the protective connection device 10, when an accident occurs and one of the insulator strings 3 breaks, it can still be pulled by the protective connection device 10 to prevent it from falling down, thereby improving the stability of the double-circuit insulator string after installation.

[0019] Further, the protective connection device 10 includes a lower connection seat 4 and an upper connection seat 5. The insulator string 3 is disposed between the lower connection seat 4 and the upper connection seat 5, and the lower connection seat 4 and the upper connection seat 5 are locked by a plurality of bolts 6. Convex rings 21 are provided at both ends of the insulator string 3. A lower arc-shaped groove 22 is provided at the upper end of the lower connection seat 4, and an upper arc-shaped groove 23 is provided at the lower end of the upper connection seat 5. The convex rings 21 are disposed in the lower arc-shaped groove 22 and the upper arc-shaped groove 23.

[0020] When installing the protective connection device 10, the convex ring 21 of the insulator string 3 is placed in the lower arc-shaped groove 22 of the lower connection seat 4. Then, the upper connection seat 5 is covered, and the convex ring 21 of the insulator string 3 is snapped into the upper arc-shaped groove 23. Finally, the upper connection seat 5 and the lower connection seat 4 are fixed by locking the bolts 6. The structure is simple and the installation is convenient.

[0021] When installing the protective connection device 10, in order to avoid damaging the insulator string 3, rubber pads are provided in both the lower arc-shaped groove 22 and the upper arc-shaped groove 23.

[0022] In order to further improve the stability of the double insulator string after installation, a connecting member 31 is provided on one side of the lower connection seat 4. One end of the connecting member 31 is provided with a connection seat 32, and the connection seat 32 is fixedly connected to the upper link plate 1 or the lower link plate 2. Thus, when an insulator string 3 accidentally breaks, it can also be pulled by the protective connection device 10, the connecting member 3, the connection seat 32, and the upper link plate 1 or the lower link plate 2, greatly improving the stability of the double insulator string after installation.

[0023] In the present utility model, both ends of the insulator string 3 are connected to the upper link plate 1 or the lower link plate 2 through bowl-shaped hanging rings 41.

[0024] A hanging ring assembly 61 is provided at the upper end of the upper link plate 1.

[0025] An adjusting plate 72 is connected to the lower end of the lower link plate 2 through a U-shaped hanging ring 71.

[0026] Combined with the drawings and the above display and description of the basic principles, main features and advantages of the present utility model, those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An installation structure of a double-insulator string, comprising an upper link plate (1), a lower link plate (2), and two insulator strings (3) that are horizontally and parallelly connected between the upper link plate (1) and the lower link plate (2), characterized in that: At both ends of the two insulator strings (3), a protective connection device (10) is connected. The protective connection device (10) includes a lower connection seat (4) and an upper connection seat (5). The insulator string (3) is arranged between the lower connection seat (4) and the upper connection seat (5), and the lower connection seat (4) and the upper connection seat (5) are locked by several bolts (6).

2. The installation structure of a double-insulator string according to claim 1, characterized in that: Convex rings (21) are arranged at both ends of the insulator string (3). A lower arc-shaped groove (22) is arranged at the upper end of the lower connection seat (4), and an upper arc-shaped groove (23) is arranged at the lower end of the upper connection seat (5). The convex ring (21) is arranged in the lower arc-shaped groove (22) and the upper arc-shaped groove (23).

3. The installation structure of a double insulator string according to claim 2, wherein: Rubber pads are arranged in both the lower arc-shaped groove (22) and the upper arc-shaped groove (23).

4. The installation structure of a double-insulator string according to claim 1, characterized in that: A connecting piece (31) is arranged on one side of the lower connection seat (4). One end of the connecting piece (31) is provided with a connection seat (32), and the connection seat (32) is fixedly connected to the upper connection plate (1) or the lower connection plate (2).

5. The installation structure of a double insulator string according to claim 1, characterized in that: Both ends of the insulator string (3) are connected to the upper connection plate (1) or the lower connection plate (2) through bowl-shaped hanging rings (41).

6. The installation structure of a double insulator string according to claim 1, characterized in that: A hanging ring assembly (61) is arranged at the upper end of the upper connection plate (1).

7. The installation structure of a double-insulator string according to claim 1, characterized in that: An adjusting plate (72) is connected to the lower end of the lower connection plate (2) through a U-shaped hanging ring (71).

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