Splicing type multi-layer grading ring

Abstract

The utility model discloses a splicing type multi-layer grading ring which comprises a base plate, a lower support, an upper support and a grading ring body. Six sets of main supporting columns are evenly arranged on the base plate, side supporting columns are arranged on the side portions of one set of main supporting columns in the diameter direction of the base plate, and internal threads are arranged in the main supporting columns and the side supporting columns. A lower bracket is arranged in the main supporting column; the lower support is composed of a first lower supporting frame and a second lower supporting frame, and arc-shaped fixing pieces are arranged at the two ends of the second lower supporting frame. An upper bracket is arranged in the side supporting column; the upper support is composed of a first upper supporting frame and a second upper supporting frame, and arc-shaped fixing pieces are arranged at the two ends of the second upper supporting frame. And the four groups of grading rings are sequentially arranged on the arc-shaped fixing sheets at the two ends of the second upper support frame and the second lower support frame from top to bottom. All the components can be detached and prefabricated, the occupied area is small after the components are detached, and transportation is convenient; meanwhile, all the parts are connected in a clamping and sleeving mode, later assembly is facilitated, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of electrical shielding, and particularly relates to a spliced multi-layer grading ring. Background Art

[0002] The main function of the grading ring is to evenly distribute high voltage around electrical equipment to ensure that there is no potential difference between various parts of the ring, so as to achieve the effect of voltage equalization. It is crucial for protecting electrical equipment and maintaining the stable operation of the power system.

[0003] In the prior art, the multi-layer grading ring structure usually fixes the grading ring to the metal rod by welding; this design results in a relatively large volume of the multi-layer grading ring structure, which is not convenient for transportation and installation; at the same time, some assembled multi-layer grading ring structures are not stable enough, there is no limit between each grading ring, and it is easy to loosen; there is also a lack of limit and positioning mechanisms for the bracket during assembly, and the installation efficiency is slightly low. Content of the Utility Model

[0004] The purpose of the utility model is to provide a spliced multi-layer grading ring that is convenient for assembly.

[0005] The purpose of the utility model is achieved as follows: A spliced multi-layer grading ring includes a chassis, an upper bracket, a lower bracket, and grading rings;

[0006] Six groups of main support columns are evenly arranged on the chassis. On the side of one group of the main support columns in the diameter direction of the chassis, there is a side support column. Internal threads are provided inside the main support columns and the side support column; an upper bracket is arranged inside the main support column; the upper bracket is composed of a first upper support frame and a second upper support frame. The first upper support frame is rotationally connected inside the main support column by threads. Arc-shaped fixing pieces are provided at both ends of the second upper support frame; a lower bracket is arranged inside the side support column; the lower bracket is composed of a first lower support frame and a second lower support frame. The first lower support frame is rotationally connected inside the side support column by threads. Arc-shaped fixing pieces are provided at both ends of the second lower support frame;

[0007] There are four groups of grading rings. The four groups of grading rings are sequentially placed from top to bottom on the arc-shaped fixing pieces at both ends of the second upper support frame and the arc-shaped fixing pieces at both ends of the second lower support frame.

[0008] An intermediate support frame is arranged between the two groups of grading rings in the middle. Arc-shaped fixing pieces are provided at both ends of the intermediate support frame.

[0009] Preferably, the six groups of main support columns are arranged at an acute angle with the plane after extending outward from the chassis.

[0010] Preferably, the distance from the outer end of the second upper support frame and the second lower support frame to the central axis of the chassis is less than the distance from the inner end to the central axis of the chassis.

[0011] Preferably, the main support column and the side support column are cavity structures with one end open. The cavity structure consists of an inner cavity and an outer cavity. The inner diameter of the outer cavity is larger than that of the inner cavity, and an internal thread is provided in the outer cavity.

[0012] Preferably, there are six groups of the intermediate support frames.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The upper support and the lower support are used to connect multiple groups of grading rings to form a multi-layer grading ring body. Each module can be prefabricated, occupying a small area during transportation and being convenient for welding and installation after being transported to the site.

[0015] 2. A threaded docking structure is provided to facilitate the insertion of the upper support and the lower support. At the same time, an arc-shaped fixing piece is provided to contact the grading ring body, facilitating subsequent welding.

[0016] 3. The main support column and the auxiliary support column are provided, which can conveniently hold the upper support and the lower support. At the same time, cavities with different diameters are provided inside, facilitating the control of the insertion depth of the support and being beneficial to improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the present utility model.

[0018] Figure 2 is Figure 1 an enlarged view of the structure at A in

[0019] Wherein, 1 is the chassis, 2 is the lower support, 201 is the first lower support frame, 202 is the second lower support frame, 3 is the upper support, 301 is the first upper support frame, 302 is the second upper support frame, 4 is the grading ring, 5 is the main support column, 6 is the side support column, 7 is the arc-shaped fixing piece, 8 is the intermediate support frame, 9 is the inner cavity, and 10 is the outer cavity. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0021] It should be noted that in the description of the present utility model, it is necessary to state that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0022] In the description of the present utility model, it is also necessary to state that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" 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 directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] As Figure 1-2 shown, a spliced multi-layer grading ring includes a chassis 1, a lower bracket 2, an upper bracket 3, and a grading ring 4.

[0024] Six groups of main support columns 5 are evenly arranged on the chassis 1. A side support column 6 is provided on the side of one of the groups of main support columns 5 in the diameter direction of the chassis 1. Internal threads are provided inside the main support column 5 and the side support column 6. The lower bracket 2 is arranged inside the main support column 5. The lower bracket 2 is composed of a first lower support bracket 201 and a second lower support bracket 202. The first lower support bracket 201 is rotationally connected inside the main support column 5 by threads. Arc-shaped fixing pieces 7 are provided at both ends of the second lower support bracket 202. The upper bracket 3 is arranged inside the side support column 6. The upper bracket 3 is composed of a first upper support bracket 301 and a second upper support bracket 302. The first upper support bracket 301 is rotationally connected inside the side support column 6 by threads. Arc-shaped fixing pieces 7 are provided at both ends of the second upper support bracket 302.

[0025] As Figure 1 shown, there are four groups of grading rings 4. The four groups of grading rings 4 are sequentially placed from top to bottom on the arc-shaped fixing pieces at both ends of the second lower support bracket 202 and the arc-shaped fixing pieces at both ends of the second upper support bracket 302.

[0026] AsFigure 1-2 As shown, there is an intermediate support frame 8 between the two groups of grading rings 4 in the middle. Arc-shaped fixing pieces 7 are provided at both ends of the intermediate support frame 8. Each group of arc-shaped fixing pieces is adapted to the ring body of the grading ring, facilitating the fixation of the grading ring.

[0027] As Figure 1 shown, the six groups of main support columns 5 and the chassis 1 are arranged at an acute angle with the plane extending outward, that is, the six groups of main support columns are arranged radially outward.

[0028] As Figure 1 shown, the distance from the outer end of the second upper support frame 301 and the second lower support frame 201 to the central axis of the chassis is less than the distance from the inner end to the central axis of the chassis.

[0029] As Figure 2 shown, the main support column 5 and the side support column 6 are cavity structures with one end open. The cavity structure is composed of an inner cavity 9 and an outer cavity 10. The inner diameter of the outer cavity 10 is larger than that of the inner cavity 9. Internal threads are provided in the outer cavity 10. The insertion ends of the first lower support frame 201 and the first upper support frame 301 are matched with the internal threads, that is, the diameter of the insertion ends of the first lower support frame and the first upper support frame is larger than the inner diameter of the inner cavity and is consistent with the inner diameter of the outer cavity; at the same time in the design, the length of each group of outer cavities is kept the same, that is, the situation where the insertion depths of each support frame are inconsistent can be avoided.

[0030] As Figure 1 shown, there are six groups of intermediate support frames 8. Setting multiple groups of intermediate support frames is beneficial to enhancing the overall stability and avoiding the phenomenon of loosening due to some solder joints being unreliable.

[0031] The working principle of the present utility model is described as follows: During manufacturing, each component can be prefabricated separately. During transportation, each component can be bundled and placed separately, occupying a smaller area than a complete grading ring and having a higher transportation efficiency; during assembly, first rotate the upper bracket into the auxiliary support column, then fix the two groups of grading rings and the arc-shaped fixing pieces, and then rotate the main body 180 degrees, that is, the uppermost grading ring is located at the bottom; sleeved the third group of grading rings from the upper part and make them contact with the second group of grading rings, then rotate the lower bracket into the main support column, adjust the position of the third group of grading rings and weld them to the inner end of the second lower bracket, install the fourth grading ring to the outer end of the second lower bracket, and install the intermediate support frame between the third group of grading rings and the second group of grading rings.

[0032] The above-described embodiments are only used to describe the preferred embodiments of the present utility model, and do not limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, various variations and improvements made by those of ordinary skill in the art to the technical solution of the present utility model should all fall within the protection scope of the present utility model. The technical content claimed by the present utility model has been fully recorded in the claims.

Claims

1. A spliced ​​multi-layer pressure equalizing ring, characterized in that: It consists of a chassis, a lower bracket, an upper bracket and a pressure equalizing ring; Six groups of main support columns are evenly arranged on the chassis, and side support columns are arranged on the side of one group of the main support columns in the diameter direction of the chassis, and internal threads are arranged inside the main support columns and the side support columns; a lower bracket is arranged inside the main support column; the lower bracket is composed of a first lower support frame and a second lower support frame, the first lower support frame is rotatably connected to the main support column by threads, and arc-shaped fixing plates are arranged at both ends of the second lower support frame; an upper bracket is arranged inside the side support column; the upper bracket is composed of a first upper support frame and a second upper support frame, the first upper support frame is rotatably connected to the side support column by threads, and arc-shaped fixing plates are arranged at both ends of the second upper support frame; There are four groups of pressure equalizing rings, and the four groups of pressure equalizing rings are placed on the arc-shaped fixing plates at both ends of the second upper support frame and on the arc-shaped fixing plates at both ends of the second lower support frame in sequence from top to bottom.

2. A spliced ​​multi-layer pressure equalizing ring according to claim 1, characterized in that: An intermediate support frame is provided between the two groups of the equalizing pressure rings in the middle, and arc-shaped fixing plates are provided at both ends of the intermediate support frame.

3. The spliced ​​multi-layer pressure equalizing ring according to claim 1, characterized in that: The six groups of main support columns are arranged at an acute angle to the rear plane of the chassis extending outward.

4. The spliced ​​multi-layer pressure equalizing ring according to claim 1, characterized in that: The distance between the outer ends of the second upper support frame and the second lower support frame and the central axis of the chassis is smaller than the distance between the inner ends and the central axis of the chassis.

5. The spliced ​​multi-layer pressure equalizing ring according to claim 1, characterized in that: The main support column and the side support column are a cavity structure with one end open, and the cavity structure consists of an inner cavity and an outer cavity. The inner diameter of the outer cavity is larger than the inner diameter of the inner cavity, and an internal thread is provided in the outer cavity.

6. The spliced ​​multi-layer pressure equalizing ring according to claim 2, characterized in that: The intermediate support frames are divided into six groups.

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