An air inflation cabinet sleeve structure

Abstract

The utility model discloses a kind of inflatable cabinet sleeve pipe structures, it is related to inflatable cabinet sleeve pipe structure technical field, including sleeve pipe and brass conducting rod, multiple first connecting countersunk hole are equidistantly provided on sleeve pipe, electric testing piece that cooperates with first connecting countersunk hole is poured in sleeve pipe, multiple second countersunk hole for sleeve pipe installation are equidistantly spaced at the side end of first connecting countersunk hole, and second countersunk hole is set up on sleeve pipe;The utility model realizes reliable electric testing function by first connecting countersunk hole and electric testing piece cooperation, and equidistantly distributed second countersunk hole is convenient for sleeve pipe stable installation, countersunk head design avoids connecting component protruding, improves compactness and security of structure, finally solves the problem of insufficient insulation and structural stability of existing inflatable cabinet sleeve pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of gas-insulated cabinet sleeve structure, and in particular to a gas-insulated cabinet sleeve structure. Background Technology

[0002] Gas-insulated switchgear, as a compact and safe electrical device, is widely used in power distribution systems. Bushings are key components connecting the internal and external circuits of the gas-insulated switchgear, and their insulation performance and structural stability are directly related to the safe and reliable operation of the entire gas-insulated switchgear. However, existing gas-insulated switchgear bushings generally suffer from insufficient insulation and structural stability in actual use, which brings many hidden dangers to the normal operation of the equipment. Existing gas-insulated switchgear bushings often exhibit localized electric field concentration due to uneven electric field distribution. Furthermore, since existing gas-insulated switchgear bushings employ shielding structures, often consisting of a covered shielding sleeve, corona discharge easily occurs inside and on the surface of the bushing under high-voltage conditions. Over time, this accelerates the aging of the insulation material, gradually degrading its insulation performance. In severe cases, it may lead to insulation breakdown, causing short-circuit faults in the equipment, affecting the stable power supply of the power system, and further exacerbating the risk of insulation failure. Therefore, this application designs a gas-insulated switchgear bushing structure to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a gas-filled cabinet sleeve structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a gas-insulating cabinet sleeve structure, including a sleeve and a brass conductive rod, wherein a plurality of first countersunk holes are equally spaced on the sleeve, and an electric test piece that mates with the first countersunk holes is cast in the sleeve, wherein a plurality of second countersunk holes for sleeve installation are equally spaced on the side end of the first countersunk holes, and the second countersunk holes are opened on the sleeve.

[0005] Preferably, the sleeve has symmetrically formed connecting grooves that abut against both ends of the brass conductive rod.

[0006] Preferably, the sleeve is provided with multiple shielding meshes at equal intervals in a ring, and the shielding meshes are cast and installed in the sleeve.

[0007] Preferably, the sleeve is provided with longitudinal reinforcing steel wires at intervals, and the longitudinal reinforcing steel wires are embedded in the sleeve.

[0008] Preferably, one end of the brass conductive rod has a first connecting threaded hole, and the other end of the brass conductive rod has a second connecting threaded hole.

[0009] Preferably, the sleeve is made of epoxy casting.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the design of the first and second connecting threaded holes at both ends of the brass conductive rod allows for flexible connection to external circuits or equipment of different specifications, thereby achieving the function of adapting to diverse connection needs; the multiple shielding meshes arranged at equal intervals in the bushing can effectively disperse the electric field intensity, reduce the phenomenon of local electric field concentration, enhance anti-interference ability, and thus achieve the function of improving insulation performance under high voltage environment; the longitudinal reinforcing steel wires arranged at intervals in the bushing significantly improve the mechanical strength and deformation resistance of the bushing, enhance the overall structural stability, and thus achieve the function of extending service life; the cooperation between the first connecting countersunk hole and the voltage detection piece realizes a reliable voltage detection function, providing a safe reference for operation and maintenance; the equidistantly distributed second countersunk holes facilitate stable installation of the bushing, and the countersunk design improves the structural compactness and safety, thereby achieving the function of safe and convenient operation and maintenance and stable installation; finally, it solves the problem of insufficient insulation and structural stability of existing gas-insulated switchgear bushings. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this utility model; Figure 2 This is a schematic diagram of the three-dimensional structure of the longitudinally reinforcing steel wire proposed in this utility model; Figure 3 This is a schematic diagram of the three-dimensional structure of the shielding mesh proposed in this utility model; Figure 4 This is a three-dimensional structural diagram of the brass conductive rod proposed in this utility model.

[0012] The numbers in the diagram are: 1. Sleeve; 2. Brass conductive rod; 3. First countersunk hole; 4. Second countersunk hole; 5. Connecting groove; 6. Shielding mesh; 7. Longitudinal reinforcing wire; 8. Voltage tester; 9. First threaded hole; 10. Second threaded hole. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] Example: See Figure 1-4This utility model discloses a gas-insulating cabinet sleeve structure, comprising a sleeve 1 and a brass conductive rod 2. Multiple first countersunk holes 3 are equidistantly spaced on the sleeve 1. A voltage testing piece 8, which mates with the first countersunk holes 3, is cast into the sleeve 1. Multiple second countersunk holes 4, equidistantly spaced on the side of the first countersunk holes 3, are provided for installing the sleeve 1. The second countersunk holes 4 are located on the sleeve 1. The first countersunk holes 3 and the voltage testing piece 8 work together to achieve reliable voltage testing. The equidistantly distributed second countersunk holes 4 facilitate stable installation of the sleeve 1, and the countersunk design prevents the connecting parts from protruding. This design enhances structural compactness and safety. The bushing 1 has symmetrically arranged connecting grooves 5 that abut against both ends of the brass conductive rod 2. These grooves provide precise installation positioning for the brass conductive rod 2, and the symmetrical design ensures balanced force distribution on the conductive rod, guarantees a stable current conduction path, and reduces contact resistance. The bushing 1 also features multiple equidistant, annularly spaced shielding meshes 6, which are cast and installed within the bushing 1. These annularly spaced shielding meshes effectively disperse the electric field intensity, reduce localized electric field concentration, enhance anti-interference capabilities, and ensure the insulation performance of the bushing 1 under high-voltage conditions.

[0015] In this utility model, a longitudinal reinforcing steel wire 7 is provided at intervals in the sleeve 1, and the longitudinal reinforcing steel wire 7 is embedded in the sleeve 1; the longitudinal reinforcing steel wire 7 significantly improves the mechanical strength and deformation resistance of the sleeve 1, enhances the overall structural stability, and extends the service life; one end of the brass conductive rod 2 is provided with a first connecting threaded hole 9, and the other end of the brass conductive rod 2 is provided with a second connecting threaded hole 10; the threaded hole design at both ends facilitates the flexible connection of the brass conductive rod 2 with external circuits or equipment, adapts to different wiring requirements, and improves the connection versatility; the sleeve 1 is made of epoxy casting; epoxy material has excellent insulation properties and mechanical strength, and the casting process ensures that the sleeve 1 has a dense structure, is moisture-proof and corrosion-proof, and is suitable for the sealed environment inside the gas-filled cabinet.

[0016] Working Principle: When using this utility model, the device is first installed and fixed. The sleeve 1 is made of epoxy casting, which has excellent insulation and sealing properties and is suitable for the gas environment inside the gas chamber. The brass conductive rod 2 is precisely installed in the sleeve 1 through the connecting grooves 5 at both ends, serving as the core of current conduction. The first connecting threaded hole 9 and the second connecting threaded hole 10 at both ends can flexibly connect to the external circuit to ensure efficient current transmission. The second countersunk hole 4 on the sleeve 1 is used to stably install the overall structure in the gas chamber, and the equidistant distribution ensures balanced installation force. The first connecting countersunk hole 3, together with the voltage tester 8, can monitor the energized status of the sleeve 1 in real time, providing a safety reference for operation and maintenance. The annular equidistant shielding mesh 6 can effectively disperse the high voltage electric field, avoid local electric field concentration leading to insulation breakdown, and improve operational safety. The longitudinal reinforcing steel wire 7 enhances the resistance of the sleeve 1 to mechanical stress, prevents deformation due to vibration and temperature changes during installation or operation, and ensures structural stability. The use of the device is then completed.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gas-insulated cabinet sleeve structure, comprising a sleeve (1) and a brass conductive rod (2), characterized in that: The sleeve (1) is provided with a plurality of first connecting countersunk holes (3) at equal intervals. The sleeve (1) is filled with an electric test piece (8) that matches the first connecting countersunk holes (3). The side end of the first connecting countersunk holes (3) is provided with a plurality of second countersunk holes (4) for the installation of the sleeve (1) at equal intervals. The second countersunk holes (4) are opened on the sleeve (1).

2. The gas-insulating cabinet sleeve structure according to claim 1, characterized in that: The sleeve (1) is symmetrically provided with connecting grooves (5) that fit and abut against both ends of the brass conductive rod (2).

3. The gas-insulating cabinet sleeve structure according to claim 2, characterized in that: The sleeve (1) is provided with multiple shielding meshes (6) at equal intervals in a ring, and the shielding meshes (6) are cast and installed in the sleeve (1).

4. The gas-insulating cabinet sleeve structure according to claim 3, characterized in that: The sleeve (1) is provided with longitudinal reinforcing steel wires (7) at intervals, and the longitudinal reinforcing steel wires (7) are embedded in the sleeve (1).

5. The gas-insulating cabinet sleeve structure according to claim 4, characterized in that: One end of the brass conductive rod (2) is provided with a first connecting threaded hole (9), and the other end of the brass conductive rod (2) is provided with a second connecting threaded hole (10).

6. The gas-insulating cabinet sleeve structure according to claim 5, characterized in that: The sleeve (1) is made of epoxy casting.

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