Land wind power insulating cylinder

Abstract

The utility model relates to the field of switch equipment, in particular to a land wind power insulating cylinder, which comprises an insulating shell, an arc extinguish chamber, an insulating pull rod and a flexible connector, the lower end of the insulating shell is provided with an opening, the top of the insulating shell is embedded with an upper wire outlet seat, and the upper wire outlet seat is fixedly connected with an upper wiring end at the top end of the arc extinguish chamber; the side wall of the insulating shell is provided with a lower wire outlet seat connecting port, a lower wire outlet seat is arranged in the lower wire outlet seat connecting port, the lower wire outlet seat is connected with a lower wiring end of the arc extinguish chamber through flexible connection, the insulating pull rod is fixedly connected with a moving contact at the lower end of the arc extinguish chamber, and an arc extinguish chamber assembly positioning disc is further arranged in the insulating shell. The lower part of the arc extinguish chamber is fixedly connected with the insulating shell through an arc extinguish chamber assembling and positioning disc, and the periphery of the arc extinguish chamber assembling and positioning disc is provided with a plurality of positioning claws used for abutting against the inner wall of the insulating shell for positioning. The insulating shell can be suitable for arc extinguish chambers of various models or manufacturers, and stable positioning of the arc extinguish chambers in the insulating shell is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of switchgear, in particular to a land wind power insulating cylinder. BACKGROUND

[0002] The insulating cylinder is a commonly used component of switchgear, and the insulating shell of the insulating cylinder is usually made of epoxy resin material in the prior art. The structure of the insulating cylinder in the prior art is that an arc-extinguishing chamber is arranged in the insulating cylinder, an upper outgoing line seat is arranged at the upper part of the insulating cylinder, a lower outgoing line seat is arranged at the lower part of the insulating cylinder, and a movable contact of the arc-extinguishing chamber is connected with an insulating pull rod at the lower end of the insulating cylinder. The insulating cylinder has the following defects: for arc-extinguishing chambers of different manufacturers or arc-extinguishing chambers of different models, corresponding insulating shells need to be used, and the insulating shells are difficult to be applicable to arc-extinguishing chambers of different manufacturers or arc-extinguishing chambers of different models, so that the insulating shells need to be improved. SUMMARY

[0003] The utility model aims at the problem that the insulating shell of the prior art insulating cylinder is difficult to be applicable to arc-extinguishing chambers of different manufacturers or arc-extinguishing chambers of different models, and provides a land wind power insulating cylinder capable of solving the foregoing problem.

[0004] To achieve the above object, the utility model realizes the following technical scheme: a land wind power insulating cylinder, comprising an insulating shell, an arc-extinguishing chamber, an insulating pull rod and a flexible connection, an opening is arranged at the lower end of the insulating shell, an upper outgoing line seat is embedded at the top of the insulating shell, the upper outgoing line seat is fixedly connected with an upper wiring end at the top end of the arc-extinguishing chamber, a lower outgoing line seat connecting port is arranged on the side wall of the insulating shell, a lower outgoing line seat is arranged in the lower outgoing line seat connecting port, the lower outgoing line seat is connected with a lower wiring end of the arc-extinguishing chamber through the flexible connection, the insulating pull rod is fixedly connected with a movable contact at the lower end of the arc-extinguishing chamber, and an arc-extinguishing chamber assembly positioning disc is further arranged in the insulating shell, the lower part of the arc-extinguishing chamber is fixedly connected with the insulating shell through the arc-extinguishing chamber assembly positioning disc, and a plurality of positioning claws for being positioned on the inner wall of the insulating shell are arranged on the outer periphery of the arc-extinguishing chamber assembly positioning disc.

[0005] In the above scheme, a through hole is arranged in the middle of the arc-extinguishing chamber assembly positioning disc, a corresponding assembly positioning part is arranged at the lower part of the arc-extinguishing chamber, the assembly positioning part passes through the through hole, an adjustable port is arranged on the arc-extinguishing chamber assembly positioning disc, and a locking bolt is arranged at the adjustable port. The assembly positioning part of the arc-extinguishing chamber is fixedly connected with the arc-extinguishing chamber assembly positioning disc through the locking bolt. Through this arrangement, the arc-extinguishing chamber assembly positioning disc and the assembly positioning part at the lower part of the arc-extinguishing chamber are fixedly connected.

[0006] In the above scheme, the insulating shell is an integral injection molding piece made of reinforced nylon material. The insulating shell is an integral injection molding piece made of reinforced nylon material, which can not only enhance the strength of the insulating shell, but also make the nylon material more environmentally friendly because it is a degradable material.

[0007] In the above solution, the lower outlet seat is connected to a cutter head, which is arranged outside the insulating housing and fixedly connected to the lower outlet seat and the flexible connector. Through this arrangement, the cutter head is integrated on the insulating cylinder, which can reduce the size of the switchgear and facilitate the connection of the knife switch.

[0008] In the above solution, the upper outlet seat is a copper or aluminum integral piece. With this arrangement, the corresponding upper outlet seat can be selected according to the current level of the insulating cylinder without having to replace the injection mold.

[0009] The present utility model has positive effects: the onshore wind power insulation cylinder of the present utility model is provided with an arc extinguishing chamber assembly positioning disk inside the insulation cylinder, and the installation position of the arc extinguishing chamber assembly positioning disk inside the insulation shell is adjustable, and the height of the arc extinguishing chamber assembly positioning disk inside the insulation shell can be adjusted according to the height of the installed arc extinguishing chamber, so that the insulation shell can be suitable for arc extinguishing chambers of various models or manufacturers. The outer periphery of the arc extinguishing chamber assembly positioning disk is provided with a plurality of positioning claws for pressing against the inner wall of the insulation shell for positioning. After the arc extinguishing chamber and the arc extinguishing chamber assembly positioning disk are fixedly connected, the arc extinguishing chamber is installed into the insulation shell from the lower end of the insulation shell, and pressure is applied so that the upper end of the arc extinguishing chamber presses against the upper outlet seat, while the positioning claws on the outer periphery of the arc extinguishing chamber assembly positioning disk press against the inner wall of the insulation shell, so that there is sufficient pressure and friction between the positioning claws and the inner wall of the insulation shell, thereby ensuring the stable positioning of the arc extinguishing chamber inside the insulation shell. The onshore wind power insulation cylinder of the present utility model has a simple structure and is easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic structural diagram of the onshore wind power insulation cylinder of the present utility model.

[0011] Figure 2 This is a schematic cross-sectional view of the onshore wind power insulation cylinder of the present invention.

[0012] Figure 3 This is a schematic diagram of the internal structure of the onshore wind power insulation cylinder of the present utility model.

[0013] Figure 4 Schematic diagram of the structure for assembling the positioning plate for the arc extinguishing chamber.

[0014] The reference numerals in the figure are: insulating shell 1, arc extinguishing chamber 2, upper terminal 21, lower terminal 22, assembly positioning part 23, moving contact 24, insulating pull rod 3, flexible connection 4, upper outlet seat 5, lower outlet seat 6, cutter head 61, arc extinguishing chamber assembly positioning plate 7, positioning claw 71, through hole 72, adjustable mouth 73, locking bolt 74. DETAILED DESCRIPTION

[0015] The following examples clearly and completely describe the technical solutions of the present invention. Obviously, the examples described are only a portion of the embodiments of the present invention, not all of them. Based on the examples of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0016] like Figure 1-3 An onshore wind power insulation cylinder shown includes an insulation shell 1 , an arc extinguishing chamber 2 , an insulation rod 3 and a flexible connection 4 .

[0017] The insulating housing 1 can be a one-piece injection-molded piece made of reinforced nylon. This not only enhances the strength of the insulating housing 1, but nylon is also biodegradable and more environmentally friendly. The shape of the insulating housing 1 can be customized as needed. An opening is provided at the bottom of the insulating housing 1. To facilitate fastening, several fixing nuts can be pre-installed in the insulating layer on the lower end surface of the insulating housing 1.

[0018] An upper outlet socket 5 is embedded in the top of the insulating housing 1. It is a single-piece copper or aluminum component. In use, the corresponding upper outlet socket 5 can be selected based on the current rating of the insulating barrel, without having to replace the injection mold. A copper upper outlet socket has a higher current rating, while an aluminum upper outlet socket can be used if the switchgear requires a lower current rating.

[0019] A lower outlet seat connection port is provided on the side wall of the insulating housing 1. A lower outlet seat 6 is provided in the lower outlet seat connection port. The lower outlet seat 6 is connected to the lower terminal 22 of the arc extinguishing chamber 2 via a flexible connector 4. The lower outlet seat 6 is also a metal conductor and can be made of a material selected according to the required current level, such as a copper or aluminum integral piece. The flexible connector 4 can be made of an existing metal material.

[0020] In order to reduce the volume of the switch device, a knife head 61 of the knife switch can also be set on the lower outlet seat 6. The knife head 61 is set outside the insulating shell 1. The knife head 61 can be integrally formed with the lower outlet seat 6. The knife head 61 is fixedly connected to the flexible connection 4 by bolts.

[0021] The arc extinguishing chamber 2 is provided in the insulating housing 1 and is located at the upper portion of the insulating housing 1 . The upper terminal 21 at the top of the arc extinguishing chamber 2 is fixedly connected to the upper outlet seat 5 , and the connection method may be a bolt connection.

[0022] like Figure 1-2 As shown, an arc extinguishing chamber assembly positioning plate 7 is further provided in the insulating housing 1. The arc extinguishing chamber assembly positioning plate 7 is arranged below the arc extinguishing chamber 2. Figure 4As shown, a through hole 72 is provided in the middle of the arc extinguishing chamber assembly positioning disk 7, and the assembly positioning portion 23 at the lower end of the arc extinguishing chamber 2 is a cylindrical step surface at the lower part of the arc extinguishing chamber 2 shell. The assembly positioning portion 23 passes through the through hole 72, and an adjustable opening 73 is provided on the arc extinguishing chamber assembly positioning disk 7. A locking bolt 74 is provided at the adjustable opening 73. The locking bolt 74 is used to connect the two sides of the adjustable opening 73. By rotating the locking bolt 74 or rotating the nut thereon, the opening width of the adjustable opening 73 can be adjusted to achieve locking or loosening of the arc extinguishing chamber assembly positioning disk 7 and the assembly positioning portion 23.

[0023] The insulating rod 3 can be an existing insulating rod. The insulating rod 3 is arranged in the insulating housing 1 and is located below the arc extinguishing chamber assembly positioning plate 7. The upper end of the insulating rod 3 is fixedly connected to the moving contact 24 at the lower end of the arc extinguishing chamber 2.

[0024] The utility model relates to an onshore wind power insulation cylinder. When the insulation shell is injection molded, the upper outlet seat and the fixing nuts on the lower end surface of the insulation shell are embedded in the corresponding parts of the insulation shell. When the arc extinguishing chamber is assembled, the arc extinguishing chamber assembly positioning plate is first sleeved on the assembly positioning part of the lower part of the arc extinguishing chamber and positioned by the cylindrical step surface. The nut on the locking bolt is then tightened to reduce the adjustable opening so that the arc extinguishing chamber assembly positioning plate is fixedly connected to the arc extinguishing chamber. The flexible connection is then assembled to the lower terminal of the arc extinguishing chamber, and the insulating pull rod is then connected to the moving contact at the lower end of the arc extinguishing chamber. The arc extinguishing chamber is then installed into the insulation shell. A certain pressure is applied so that the top of the arc extinguishing chamber is pressed against the upper outlet seat. The upper outlet seat is then fixedly connected to the upper terminal at the top of the arc extinguishing chamber by bolts, and the two are ensured to be tightly pressed to achieve good conductivity. By connecting the upper outlet seat and the upper terminal with bolts, the height of the arc extinguishing chamber in the insulating shell can be positioned. Combined with the positioning claws on the outer periphery of the arc extinguishing chamber assembly positioning plate, the assembly of the arc extinguishing chamber in the insulating shell can be made more stable. Finally, the lower outlet seat and the soft connection are fixedly connected with bolts to complete the assembly of the insulating cylinder.

[0025] The onshore wind power insulation cylinder of the present invention assembles and positions the arc extinguishing chamber through the arc extinguishing chamber assembly positioning plate, so the insulation shell can be applied to arc extinguishing chambers of various brands and models, with better versatility and easier assembly. After assembly, the arc extinguishing chamber is more stably positioned in the insulation shell. The insulation shell is made of reinforced nylon material, which has higher strength, is biodegradable, and is more environmentally friendly. The onshore wind power insulation cylinder of the present invention integrates a knife head on the lower outlet seat, which can be directly connected to the knife switch. This arrangement can reduce the size of the switch and improve the internal space utilization of the switch equipment. The upper outlet seat of the onshore wind power insulation cylinder of the present invention can be selected according to the required current level, and there is no need to replace the injection mold of the insulation cylinder.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the scope and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An onshore wind power insulation cylinder, characterized by: It includes an insulating shell, an arc extinguishing chamber, an insulating pull rod and a soft connection. The lower end of the insulating shell is provided with an opening. An upper wire seat is embedded in the top of the insulating shell. The upper wire seat is fixedly connected to the upper terminal at the top of the arc extinguishing chamber. A lower wire seat connecting port is provided on the side wall of the insulating shell. A lower wire seat is provided in the lower wire seat connecting port. The lower wire seat is connected to the lower terminal of the arc extinguishing chamber through a soft connection. The insulating pull rod is fixedly connected to the moving contact at the lower end of the arc extinguishing chamber. An arc extinguishing chamber assembly positioning disk is also provided in the insulating shell. The lower part of the arc extinguishing chamber is fixedly connected to the insulating shell through the arc extinguishing chamber assembly positioning disk. The outer periphery of the arc extinguishing chamber assembly positioning disk is provided with a plurality of positioning claws for positioning against the inner wall of the insulating shell.

2. The onshore wind power insulation cylinder according to claim 1, characterized in that: A through hole is provided in the middle of the arc extinguishing chamber assembly positioning plate, and an assembly positioning portion corresponding thereto is provided at the lower portion of the arc extinguishing chamber. The assembly positioning portion passes through the through hole, and an adjustable opening is provided on the arc extinguishing chamber assembly positioning plate. A locking bolt is provided at the adjustable opening, and the assembly positioning portion of the arc extinguishing chamber can be fixedly connected to the arc extinguishing chamber assembly positioning plate through the locking bolt.

3. The onshore wind power insulation cylinder according to claim 1, characterized in that: The insulating shell is an integral injection-molded part made of reinforced nylon.

4. The onshore wind power insulation cylinder according to claim 1, characterized in that: The lower outlet seat is connected with a cutter head, which is arranged outside the insulating shell and is fixedly connected to the lower outlet seat and the soft connection.

5. The onshore wind power insulation cylinder according to claim 1, characterized in that: The upper outlet seat is an integral piece made of copper or aluminum.

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