Threading structure of high-voltage cabinet

Abstract

The utility model provides a high-voltage cabinet threading structure. The high-voltage cabinet threading structure comprises a first insulator and a second insulator, the nesting section comprises a first inner protection pipe, a second inner protection pipe and a partition plate, the first insulator is nested on the outer edge of the first inner protection pipe, and the second insulator is nested on the outer edge of the second inner protection pipe; limiting groove plates allowing the copper bars to pass through are arranged in the partition plates, and the sizes of the copper bars of different specifications are matched by replacing the nesting sections of different sizes and specifications. According to the utility model, the part for accommodating the copper bar to pass through is designed into an inner core type structure, when the specification needs to be changed to meet the placement requirement of the copper bar, only the nesting sections bearing the function of the inner core need to be replaced, and a plurality of groups of nesting sections and a certain number of first insulators and second insulators are carried on an assembly site; during assembly, only the nesting sections need to be selected correspondingly for matching, a large number of threading sleeves of different sizes do not need to be carried, and the carrying weight of related accessories is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-voltage cabinets, and in particular relates to a wire threading structure for a high-voltage cabinet. Background Art

[0002] High-voltage cabinets, also known as high-voltage distribution cabinets, refer to electrical products that play the role of switching, controlling or protecting in power generation, transmission, distribution, power conversion and consumption in power systems. Wire bushings are usually used between high-voltage distribution cabinets as the outer protection components of copper bars to complete the function of line connection between different high-voltage cabinets.

[0003] In the prior art, most of the wire bushings are formed in one piece using insulating materials, but the specifications and quantity of the copper busbars will be configured according to the assembly requirements of the high-voltage cabinet. In order to maintain the corresponding size spacing requirements, the size of the inner core part of the wire bushing will be designed to be of various different specifications. Due to the insulation requirements, the commonly used wire bushings are relatively large in size and weight. During actual on-site assembly, it is necessary to carry wire bushings of various different specifications to meet the assembly requirements, which increases the carrying weight of the accessories and the burden on the operators. Utility Model Content

[0004] The utility model provides a high-voltage cabinet threading structure, aiming to solve the problem that the threading sleeves commonly used at present are relatively large in size and weight, a variety of threading sleeves of different specifications need to be carried to meet assembly needs during actual on-site assembly, and the carrying weight of accessories is large.

[0005] The utility model is implemented in this way: a high-voltage cabinet threading structure comprises:

[0006] a first insulator and a second insulator;

[0007] A nested section, wherein the nested section comprises a first inner protective tube, a second inner protective tube and a partition, wherein the first insulator is nested in the outer edge of the first inner protective tube, and the second insulator is nested in the outer edge of the second inner protective tube;

[0008] The partition is provided with a limiting slot plate for accommodating the copper bar to pass through, and the sizes of copper bars of different specifications are adapted by replacing nesting sections of different sizes.

[0009] Preferably, a first outer sheath and a first pressing plate are provided on the first insulator, and the first pressing plate is located at one end of the first outer sheath close to the partition.

[0010] Preferably, the second insulator comprises a second outer sheath and a second pressing plate, and the second pressing plate is located at one end of the second outer sheath close to the partition.

[0011] Preferably, the limiting groove plate is located at the center of the partition plate, and the limiting groove plate is provided with through holes of different specifications.

[0012] Preferably, the first outer sheath is nested in the outer edge of the first inner protective tube, and the second outer sheath is nested in the outer edge of the second inner protective tube;

[0013] The first pressing plate, the partition plate and the second pressing plate are attached to each other and fixed by bolts.

[0014] Preferably, the first pressing plate is provided with a limiting hole, the partition is provided with a guide hole; the second pressing plate is provided with a limiting column;

[0015] When the first pressing plate, the partition plate and the second pressing plate are connected in sequence, the limiting column passes through the guide hole and the limiting hole in sequence; the first pressing plate, the partition plate and the second pressing plate use the limiting column as a limiting connecting rod to first insert the nesting section into the second insulator during the assembly process, and let the limiting column pass through the limiting hole first to complete the preliminary assembly, and then the first insulator is sleeved on the nesting section. Since the limiting column and the limiting hole cooperate with the nesting section and the second insulator to form a whole first, the complexity of the assembly process is reduced;

[0016] Preferably, an embedding ring is provided at the connection between the partition and the first inner protective tube; and an embedding groove adapted to the embedding ring is provided on the end surface of the first pressing plate facing the partition.

[0017] Preferably, an embedding ring is provided at the connection between the partition and the second inner protective tube; and an embedding groove adapted to the embedding ring is provided on the end surface of the second pressing plate facing the partition.

[0018] Preferably, the second pressing plate and the first pressing plate are respectively pressed onto the embedded rings on different sides of the partition.

[0019] Preferably, the embedded ring adopts a bevel structure, and the embedded groove adapted therewith allows the embedded ring to extend into the second pressing plate and the first pressing plate to the inside, thereby increasing the supporting force of the ring side and enhancing the connection strength between them.

[0020] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0021] The high-voltage cabinet threading structure provided by the utility model designs the part accommodating the copper busbar to be an inner core structure. When it is necessary to change the specifications to meet the copper busbar placement needs, it is only necessary to replace the nesting segment that bears the inner core function. A plurality of nesting segments and a certain number of first insulators and second insulators are carried at the assembly site. During assembly, it is only necessary to select the corresponding nesting segments for matching. The first insulator and the second insulator can be matched according to the number of assemblies without carrying a large number of threading sleeves of different sizes, thereby reducing the carrying weight of related accessories and reducing the stocking cost of the high-voltage cabinet threading structure. The stocking cost of auxiliary materials can be reduced while enhancing the flexibility of on-site equipment installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a structural schematic diagram of a high-voltage cabinet threading structure.

[0023] Figure 2 The utility model discloses an exploded structural diagram of a high-voltage cabinet threading structure.

[0024] Figure 3 The utility model provides a schematic diagram of a nested segment structure of a high-voltage cabinet threading structure.

[0025] Figure 4 The utility model provides a schematic structural diagram of a second insulator and a nested section in a high-voltage cabinet threading structure.

[0026] Figure 5 The utility model provides a schematic diagram of the internal structure of a high-voltage cabinet threading structure.

[0027] Figure 6 The utility model provides a schematic diagram of a structure of limiting slot plates of different sizes for a high-voltage cabinet threading structure.

[0028] Description of reference numerals:

[0029] 100, first insulator; 110, first outer sheath; 120, first pressing plate; 130, limiting hole;

[0030] 200, nesting section; 210, first inner protective tube; 220, second inner protective tube; 230, partition; 231, guide hole; 232, embedding ring; 240, limit slot plate;

[0031] 300, second insulator; 310, first outer sheath; 320, second pressing plate; 330, limiting column. DETAILED DESCRIPTION

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] The utility model embodiment provides a high-voltage cabinet threading structure, such as Figure 1-Figure 6 As shown, the high-voltage cabinet threading structure includes:

[0035] A first insulator 100, wherein a first outer sheath 110 and a first pressing plate 120 are provided on the first insulator 100;

[0036] A second insulator 300, wherein the second insulator 300 comprises a second outer sheath 310 and a second pressing plate 320;

[0037] The nesting section 200 includes a first inner protective tube 210, a second inner protective tube 220 and a partition 230, the first outer sheath 110 is nested on the outer edge of the first inner protective tube 210, the second outer sheath 310 is nested on the outer edge of the second inner protective tube 220, and the first pressing plate 120, the second pressing plate 320 and the partition 230 are fixed to the side wall of the high-voltage cabinet by bolts;

[0038] A limiting slot plate 240 for accommodating the copper bar passing through is provided at the center of the partition plate 230; the size of the limiting slot plate 240 can be matched with a nesting section 200 of a suitable size according to the need for the copper bar to pass through;

[0039] The first insulator 100 and the second insulator 300, as peripheral devices, form an integral structure with the nesting section 200 to meet the needs of circuit insulation and protect the copper busbar connected through the high-voltage cabinet threading structure. In actual use, the size of the copper busbar will be selected according to needs, and the high-voltage cabinet threading structure generally has the same insulation performance requirements; the first insulator 100, the nesting section 200 and the second insulator 300 are made of insulating materials in the prior art;

[0040] In the present application, we adopt a split design for the traditional threading sleeve, so that the threading sleeve becomes a detachable structure. By designing the part that accommodates the copper busbar to pass through as an inner core structure, when it is necessary to change the specifications to meet the placement requirements of the copper busbar, it is only necessary to replace the nesting segment 200 that bears the inner core function. At the assembly site, several groups of nesting segments 200 and a certain number of first insulators 100 and second insulators 300 are carried. During assembly, it is only necessary to select the corresponding nesting segments 200 for matching. The first insulator 100 and the second insulator 300 can be matched according to the number of assemblies without carrying a large number of threading sleeves of different sizes, thereby reducing the carrying weight of related accessories. Secondly, it can reduce the stocking cost of the high-voltage cabinet threading structure; while enhancing the flexibility of on-site equipment installation, it can also reduce the stocking cost of auxiliary materials;

[0041] As a preferred implementation in this embodiment, a limiting hole 130 is provided on the first pressing plate 120, and a guide hole 231 is provided on the partition 230; a limiting column 330 is provided on the second pressing plate 320. When the first pressing plate 120, the partition 230 and the second pressing plate 320 are connected in sequence, the limiting column 330 passes through the guide hole 231 and the limiting hole 130 in sequence. The inner core of the limiting column 330 is a through-hole structure, and the first pressing plate 120 and the partition 230 can be pressed on the second pressing plate 320 by bolt fixing.

[0042] The specific operation method is to insert a screw with a needle seat from the end of the second pressing plate 320 away from the first pressing plate 120, and let the screw pass through the first pressing plate 120, the partition 230 and the second pressing plate 320 from the inside of the through hole in sequence and extend from the inside of the through hole to the side of the first pressing plate 120 away from the second pressing plate 320, and then assemble the nut on the screw from this side, and use the screw to press the first pressing plate 120 and the partition 230 onto the second pressing plate 320;

[0043] In this embodiment, during the assembly process, the side wall of the high-voltage cabinet is provided with matching screw holes and sleeve holes. When the screws are fixed, the high-voltage cabinet threading structure can be simultaneously assembled on the side wall of the high-voltage cabinet to meet the need for fixed connection with the high-voltage cabinet.

[0044] As a preferred implementation in this embodiment, an embedding ring 232 is provided at the connection between the partition 230 and the first inner protective tube 210 and the second inner protective tube 220; an embedding groove adapted to the embedding ring 232 is provided on the end surface of the first pressing plate 120 facing the partition 230, and the same structure is provided on the second pressing plate 320;

[0045] The embedded ring 232 adopts an inclined surface structure, and the second pressing plate 320 and the first pressing plate 120 are pressed on the embedded ring 232 on different sides respectively, so as to improve the structural strength of the first insulator 100, the nesting section 200 and the second insulator 300;

[0046] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0047] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A high-voltage cabinet threading structure, characterized in that: include: A first insulator (100) and a second insulator (300); A nested section (200), the nested section (200) comprising a first inner protective tube (210), a second inner protective tube (220) and a partition (230), the first insulator (100) being nested at an outer edge of the first inner protective tube (210), and the second insulator (300) being nested at an outer edge of the second inner protective tube (220); The partition plate (230) is provided with a limiting slot plate (240) for accommodating the copper bar to pass through, and copper bars of different specifications can be adapted by replacing nesting sections (200) of different specifications.

2. A high-voltage cabinet threading structure as claimed in claim 1, characterized in that: The first insulator (100) is provided with a first outer sheath (110) and a first pressing plate (120), wherein the first pressing plate (120) is located at one end of the first outer sheath (110) close to the partition (230).

3. A high-voltage cabinet threading structure as claimed in claim 2, characterized in that: The second insulator (300) comprises a second outer sheath (310) and a second pressing plate (320), wherein the second pressing plate (320) is located at one end of the second outer sheath (310) close to the partition (230).

4. A high-voltage cabinet threading structure as claimed in claim 3, characterized in that: The limiting groove plate (240) is located at the center of the partition plate (230), and the limiting groove plate (240) is provided with through holes of different specifications.

5. A high-voltage cabinet threading structure as claimed in claim 4, characterized in that: The first outer sheath (110) is nested on the outer edge of the first inner sheath (210), and the second outer sheath (310) is nested on the outer edge of the second inner sheath (220); The first pressing plate (120), the partition plate (230) and the second pressing plate (320) are attached to each other and fixed by bolts.

6. A high-voltage cabinet threading structure as claimed in claim 5, characterized in that: The first pressing plate (120) is provided with a limiting hole (130), and the partition plate (230) is provided with a guide hole (231); the second pressing plate (320) is provided with a limiting column (330); When the first pressing plate (120), the partition plate (230) and the second pressing plate (320) are connected in sequence, the limiting column (330) passes through the guide hole (231) and the limiting hole (130) in sequence.

7. A high-voltage cabinet threading structure as claimed in claim 6, characterized in that: An embedding ring (232) is provided at the connection between the partition (230) and the first inner protective tube (210); and an embedding groove adapted to the embedding ring (232) is provided on the end surface of the first pressing plate (120) facing the partition (230).

8. A high-voltage cabinet threading structure as claimed in claim 7, characterized in that: An embedding ring (232) is provided at the connection between the partition (230) and the second inner protective tube (220); and an embedding groove adapted to the embedding ring (232) is provided on the end surface of the second pressing plate (320) facing the partition (230).

9. A high-voltage cabinet threading structure as claimed in claim 8, characterized in that: The second pressing plate (320) and the first pressing plate (120) are respectively pressed onto the embedded rings (232) on different sides of the partition (230).

10. A high-voltage cabinet threading structure according to claim 9, characterized in that: The embedded ring (232) adopts a sloped structure.

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