Pressure-resistant structure of high-voltage bushing

Abstract

The utility model relates to a compression-resistant structure of a high-voltage bushing. The compression-resistant structure comprises a main bushing; the insulating sleeve is arranged in the main body sleeve in a penetrating manner, a copper sleeve is arranged in the insulating sleeve in a penetrating manner, and the copper sleeve is used for arranging a copper lead in a penetrating manner; and the at least one compression-resistant assembly is arranged along the axial direction of the main body sleeve, the compression-resistant assembly is arranged on the insulating sleeve in a sleeving manner, and the compression-resistant assembly is attached to the inner wall of the main body sleeve. The compression-resistant components are arranged between the insulating sleeve and the main body sleeve, the insulating sleeve is sleeved with the compression-resistant components, the compression-resistant components are attached to the inner wall of the main body sleeve, and the multiple compression-resistant components are distributed in the axial direction of the main body sleeve, so that the compression resistance of the main body sleeve can be effectively improved under the condition that the flexibility of the main body sleeve is not affected, and the service life of the main body sleeve is prolonged. Therefore, the risk that the high-pressure sleeve is broken when bearing pressure is reduced, and the service life of the high-pressure sleeve is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage bushings, in particular to a high-voltage bushing pressure-resistant structure. Background Art

[0002] High-voltage bushing is a kind of pipe used to encapsulate and protect high-voltage power equipment in the power system. It is mainly used in the fields of transmission lines, substations and power equipment to isolate and protect the high-voltage part of high-voltage equipment, and also plays a supporting and fixing role.

[0003] At present, the existing high-pressure casings are prone to rupture when under pressure due to the lack of pressure-resistant structure design, leading to serious safety accidents; the lack of pressure-resistant structure design will increase the risk of pipeline damage, requiring more frequent maintenance and repair work; the pipeline may require more support and reinforcement facilities during operation, resulting in increased costs. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a high-voltage bushing pressure-resistant structure for solving the problem that the existing high-voltage bushing is prone to rupture when subjected to pressure, thereby increasing the risk of pipeline damage.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a high-voltage bushing pressure-resistant structure, comprising:

[0006] Main casing;

[0007] An insulating sleeve, the insulating sleeve is inserted into the main body sleeve, a copper sleeve is inserted into the insulating sleeve, and the copper sleeve is used to insert a copper lead;

[0008] At least one pressure-resistant component is arranged along the axial direction of the main sleeve, the pressure-resistant component is sleeved on the insulating sleeve, and the pressure-resistant component is in contact with the inner wall of the main sleeve.

[0009] Optionally, the pressure-resistant assembly includes an outer support ring and an inner support ring, the inner support ring is nested in the outer support ring, the inner support ring is fitted with the insulating sleeve, and the outer support ring is fitted with the main body sleeve.

[0010] Optionally, the outer support ring includes a central ring and an outer ring, and a plurality of support plates are circumferentially arranged on the outer wall of the central ring, and the support plates are connected to the outer ring.

[0011] Optionally, a mounting hole is provided between two adjacent support plates on the center ring, and the mounting hole is provided through the wall thickness of the center ring in the radial direction of the center ring.

[0012] Optionally, three support plates are evenly distributed on the outer wall of the center ring along the circumferential direction.

[0013] Optionally, the support plate is in a fan-shaped structure, and the mounting hole is a rectangular hole.

[0014] Optionally, the inner support ring has a plurality of fan-shaped holes distributed along the circumferential direction, the fan-shaped holes are arranged to penetrate the wall thickness of the inner support ring along the radial direction of the inner support ring, and the fan-shaped holes are used for mounting in cooperation with the support plate.

[0015] Optionally, an insulating rubber block is provided between two adjacent fan-shaped holes, and the insulating rubber block is arranged on the inner wall of the inner support ring.

[0016] Optionally, the insulating rubber block protrudes radially along the inner support ring, the insulating rubber block cooperates with the mounting hole, and the insulating rubber block fits against the outer wall of the insulating sleeve.

[0017] Optionally, a plurality of grooves are circumferentially provided on the inner wall of the insulating sleeve, the groove depth of the grooves extends in the radial direction of the insulating sleeve, and the groove length of the grooves extends in the axial direction of the insulating sleeve.

[0018] As described above, the utility model has the following beneficial effects: by arranging a pressure-resistant component between the insulating sleeve and the main body sleeve, the pressure-resistant component is sleeved on the insulating sleeve, and the pressure-resistant component is fitted with the inner wall of the main body sleeve, and a plurality of pressure-resistant components are distributed along the axial direction of the main body sleeve, the pressure resistance of the main body sleeve can be effectively improved without affecting the flexibility of the main body sleeve, thereby reducing the risk of rupture of the high-voltage sleeve when under pressure, and effectively extending the service life of the high-voltage sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shown is a half-section schematic diagram of a high-voltage bushing pressure-resistant structure shown in an embodiment of the present application;

[0020] Figure 2 Shown is an exploded schematic diagram of the compression-resistant assembly.

[0021] Description of Reference Numerals

[0022] Main casing 1, insulating casing 2, groove 201, copper casing 3, pressure-resistant component 4, outer support ring 401, center ring 401a, outer ring 401b, support plate 401c, mounting hole 401d, inner support ring 402, fan-shaped hole 402a, insulating rubber block 402b. DETAILED DESCRIPTION

[0023] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0024] See also Figure 1 to Figure 2 . It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the utility model in a schematic manner, so the diagram only shows the components related to the utility model rather than being drawn according to the number, shape and size of the components during actual implementation. During actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated. The structure, proportion, size, etc. illustrated in the drawings attached to this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of the utility model, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the utility model without affecting the effect and purpose that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0025] Before describing the embodiment of the utility model in detail, the application environment of the utility model is described first. The technology of the utility model is mainly applied to the technical field of high-voltage bushings. The utility model is used to solve the problem that the existing high-voltage bushings are prone to rupture when subjected to pressure, increasing the risk of pipeline damage.

[0026] Please combine Figure 1 to Figure 2 As shown, the utility model provides a high-voltage bushing pressure-resistant structure.

[0027] In an exemplary embodiment of the present application, the high-voltage bushing pressure-resistant structure includes: a main bushing 1; an insulating bushing 2, the insulating bushing 2 is inserted into the main bushing 1, a copper sleeve 3 is inserted into the insulating bushing 2, and the copper sleeve 3 is used to insert a copper lead; at least one pressure-resistant component 4 is axially arranged along the main bushing 1, the pressure-resistant component 4 is sleeved on the insulating bushing 2, and the pressure-resistant component 4 is in contact with the inner wall of the main bushing 1.

[0028] In this embodiment, a pressure-resistant component 4 is arranged between the insulating sleeve 2 (the insulating sleeve 2 is made of polyimide plastic and has the characteristics of high temperature resistance, corrosion resistance and wear resistance) and the main sleeve 1. The pressure-resistant component 4 is sleeved on the insulating sleeve 2, and the pressure-resistant component 4 is in contact with the inner wall of the main sleeve 1. A plurality of pressure-resistant components 4 are distributed along the axial direction of the main sleeve 1. Without affecting the flexibility of the main sleeve 1, the pressure resistance of the main sleeve 1 can be effectively improved, thereby reducing the risk of rupture of the high-voltage sleeve when under pressure, and effectively extending the service life of the high-voltage sleeve.

[0029] In an exemplary embodiment of the present application, the pressure-resistant component 4 includes an outer support ring 401 and an inner support ring 402 , the inner support ring 402 is nested in the outer support ring 401 , the inner support ring 402 is fitted with the insulating sleeve 2 , and the outer support ring 401 is fitted with the main sleeve 1 .

[0030] In this embodiment, the outer support ring 401 and the inner support ring 402 are both made of rigid materials. The pressure generated outside the main sleeve 1 is resisted by the outer support ring 401, and the inner support ring 402 provides support for the outer support ring 401, thereby improving the overall pressure resistance of the sleeve.

[0031] In an exemplary embodiment of the present application, the outer support ring 401 includes a central ring 401a and an outer ring 401b. The outer wall of the central ring 401a is provided with a plurality of support plates 401c along the circumferential direction, and the support plates 401c are connected to the outer ring 401b.

[0032] In this embodiment, the support plate 401c is used to disperse the pressure of the outer ring 401b, thereby improving the compressive strength of the outer ring 401b.

[0033] In an exemplary embodiment of the present application, a mounting hole 401d is provided between two adjacent support plates 401c on the center ring 401a, and the mounting hole 401d is provided along the radial direction of the center ring 401a and penetrates the wall thickness of the center ring 401a.

[0034] In an exemplary embodiment of the present application, three support plates 401c are evenly distributed on the outer wall of the center ring 401a along the circumferential direction.

[0035] In an exemplary embodiment of the present application, the support plate 401c is a fan-shaped structure, and the mounting hole 401d is a rectangular hole.

[0036] In an exemplary embodiment of the present application, the inner support ring 402 has a plurality of fan-shaped holes 402a distributed along the circumferential direction. The fan-shaped holes 402a are arranged to penetrate the wall thickness of the inner support ring 402 in the radial direction of the inner support ring 402. The fan-shaped holes 402a are used for installation in conjunction with the support plate 401c.

[0037] In this embodiment, the support plate 401c passes through the fan-shaped hole 402a and is connected to the outer ring 401b. The support plate 401c cooperates with the fan-shaped hole 402a to realize the assembly of the inner support ring 402 and the outer support ring 401.

[0038] In an exemplary embodiment of the present application, an insulating rubber block 402 b is provided between two adjacent fan-shaped holes 402 a , and the insulating rubber block 402 b is arranged on the inner wall of the inner support ring 402 .

[0039] In an exemplary embodiment of the present application, the insulating rubber block 402 b protrudes radially along the inner support ring 402 , the insulating rubber block 402 b cooperates with the mounting hole 401 d , and the insulating rubber block 402 b fits the outer wall of the insulating sleeve 2 .

[0040] In this embodiment, the insulating rubber block 402b passes through the mounting hole 401d and contacts the outer wall of the insulating sleeve 2. When the copper lead wire inserted in the copper sleeve 3 is transmitting, the copper lead wire itself generates high-voltage current, and the copper sleeve 3 wraps the copper lead wire inside. When the high voltage is continuously working, the current generated by the copper lead wire passes through the outer wall of the insulating sleeve 2. Since the insulating rubber block 402b fits the outer wall of the insulating sleeve 2, the current can be led to the inner support ring 402. The inner support ring 402 is an insulating rubber ring, so that the leakage current of the insulating sleeve 2 can be insulated, thereby increasing the safety of use.

[0041] In an exemplary embodiment of the present application, a plurality of grooves 201 are circumferentially provided on the inner wall of the insulating sleeve 2 , the groove depth of the groove 201 extends radially of the insulating sleeve 2 , and the groove length of the groove 201 extends axially of the insulating sleeve 2 .

[0042] In this embodiment, four grooves 201 are evenly distributed along the axial direction on the inner wall of the insulating sleeve 2, and the four grooves 201 form a "cross"-shaped through hole. When the copper lead is energized, the surface current transmission of the copper lead will produce a higher stability. The copper lead transfers the temperature to the copper sleeve 3, and a cavity is generated through the opened "cross" through hole, thereby reducing the contact area between the insulating sleeve 2 and the copper sleeve 3, and the cavity can produce a certain heat dissipation effect for the copper lead.

[0043] The working principle is as follows: a pressure-resistant component 4 is arranged between the insulating sleeve 2 and the main sleeve 1; the pressure-resistant component 4 is sleeved on the insulating sleeve 2, and the pressure-resistant component 4 is fitted with the inner wall of the main sleeve 1; and a plurality of pressure-resistant components 4 are distributed along the axial direction of the main sleeve 1. Without affecting the flexibility of the main sleeve 1, the pressure resistance of the main sleeve 1 can be effectively improved, thereby reducing the risk of rupture of the high-voltage sleeve when under pressure, and effectively extending the service life of the high-voltage sleeve.

[0044] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A high voltage bushing pressure-resistant structure, characterized in that: include: Main casing; An insulating sleeve, the insulating sleeve is inserted into the main sleeve, a copper sleeve is inserted into the insulating sleeve, and the copper sleeve is used to insert a copper lead; At least one pressure-resistant component is arranged along the axial direction of the main sleeve, the pressure-resistant component is sleeved on the insulating sleeve, and the pressure-resistant component is in contact with the inner wall of the main sleeve.

2. The high voltage bushing pressure-resistant structure according to claim 1, characterized in that: The pressure-resistant assembly comprises an outer support ring and an inner support ring, wherein the inner support ring is nested in the outer support ring, the inner support ring is fitted with the insulating sleeve, and the outer support ring is fitted with the main body sleeve.

3. The high voltage bushing pressure-resistant structure according to claim 2, characterized in that: The outer supporting ring comprises a central ring and an outer ring. The outer wall of the central ring is provided with a plurality of supporting plates along the circumferential direction. The supporting plates are connected to the outer ring.

4. The high voltage bushing pressure-resistant structure according to claim 3, characterized in that: A mounting hole is provided between two adjacent support plates on the center ring, and the mounting hole is provided through the wall thickness of the center ring in the radial direction of the center ring.

5. The high voltage bushing pressure-resistant structure according to claim 4, characterized in that: The outer wall of the center ring is evenly distributed with three support plates along the circumferential direction.

6. The high voltage bushing pressure-resistant structure according to claim 5, characterized in that: The support plate is in a fan-shaped structure, and the mounting hole is a rectangular hole.

7. The high voltage bushing pressure-resistant structure according to claim 4, characterized in that: The inner support ring is provided with a plurality of fan-shaped holes distributed along the circumferential direction. The fan-shaped holes are arranged to penetrate the wall thickness of the inner support ring along the radial direction of the inner support ring. The fan-shaped holes are used for matching and installing with the support plate.

8. The high voltage bushing pressure-resistant structure according to claim 7, characterized in that: An insulating rubber block is provided between two adjacent fan-shaped holes, and the insulating rubber block is arranged on the inner wall of the inner support ring.

9. The high voltage bushing pressure-resistant structure according to claim 8, characterized in that: The insulating rubber block protrudes along the radial direction of the inner support ring, the insulating rubber block cooperates with the mounting hole, and the insulating rubber block is in contact with the outer wall of the insulating sleeve.

10. The high voltage bushing pressure-resistant structure according to claim 1, characterized in that: A plurality of grooves are circumferentially arranged on the inner wall of the insulating sleeve, the groove depth of the grooves extends along the radial direction of the insulating sleeve, and the groove length of the grooves extends along the axial direction of the insulating sleeve.

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