A fully insulated cubicle with reinforced structure
Through innovative design of support and connection components, the problem of insufficient strength of the support plate of the fully insulated gas-insulated switchgear was solved, achieving more stable support for electrical components and gas pressure protection, improving the structural strength and adaptability of the device, and facilitating the combination and connection of the gas-insulated switchgear.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI QIANYAN ELECTRICAL EQUIPMENT CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-09
AI Technical Summary
The existing support plates of fully insulated gas-filled switchgear are not strong enough to fix devices of different weights, which may result in them being unable to effectively support heavier devices, affecting the structural stability and gas pressure protection effect of the device.
The design employs support and connection components, including the cooperation between support rods and pins, the sliding connection between slide rails and sliders, the combination of side busbars and connectors, and the use of inner lining plates, which improves the flexibility and strength of the support structure and enhances the device's compressive strength and adaptability.
The design of the support and connection components ensures stable support for the electrical components inside the gas-filled cabinet, improves the structural strength and gas pressure resistance of the device, enhances its adaptability to different circuit components, and facilitates the combination and connection of the gas-filled cabinet.
Smart Images

Figure CN224342815U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fully insulated gas-filled switchgear technology, and in particular to a fully insulated gas-filled switchgear with a reinforced structure. Background Technology
[0002] A fully insulated gas-insulated switchgear with a reinforced structure is a high-voltage switchgear used in power systems. It features a fully insulated, sealed design and a built-in mechanically reinforced frame. Primarily used in urban power grids, rail transit, and new energy power plants—locations with stringent requirements for space efficiency and safety—it effectively withstands internal arcing and can withstand long-term operation in harsh environments. Existing fully insulated gas-insulated switchgear typically uses an isolation plate to separate the gas chamber and mounts the insulated components onto a support plate for fixation. However, this structure suffers from insufficient support strength when encountering heavier components because the support plate is fixed inside the gas-insulated switchgear, and the different types and weights of the components requiring gas protection can lead to this issue. Therefore, improvements are needed to address these problems. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fully insulated gas-filled cabinet with a reinforced structure.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a fully insulated gas-filled cabinet with a reinforced structure, comprising an outer shell, a sealing plate installed at the front end of the outer shell, one side of the sealing plate being movably hinged to the outer shell, and a support assembly installed inside the outer shell, and a connecting assembly installed above the support assembly.
[0005] Preferably, an isolation plate is installed at the upper part of the inner shell, and the isolation plate has mounting grooves at its four ends. Glanders are installed in the mounting grooves, and the front and rear two glands are installed in opposite directions. An inner lining plate is installed inside the outer shell, and an air intake valve is installed on one side of the lower end of the outer shell.
[0006] Preferably, a screwdriver is installed at the center of the front end of the sealing plate, and a sealing strip is sleeved around the rear end of the sealing plate. Both the outer shell and the isolation plate are provided with corresponding sealing grooves.
[0007] Preferably, the support assembly is horizontally disposed on the support plate below the interior of the outer shell, the two ends of the support plate are slidably connected to the inner wall of the outer shell, and a slide rail is horizontally installed on the bottom surface of the support plate. The slide rail has multiple insertion holes, and sliders are slidably connected to both sides of the slide rail.
[0008] Preferably, a support rod is movably hinged to the slider, and a pin passes through the upper end of the slider. Both ends of the pin are placed in the insertion holes. A connecting block is installed at the other end of the support rod. The connecting block is fixed to the inner wall of the outer shell, and the support rod and the connecting block are movably hinged.
[0009] Preferably, the connecting assembly includes a plurality of side busbars vertically mounted on the upper ends of both sides of the housing. One side of the side busbar passes through the housing and the inner liner and is fixed to the housing by a flange. A connector is installed in the middle of one side of the side busbar, and the connector is covered with a protective sleeve. A connection hole for cooperating with the connector is opened on the outer side of the other side of the side busbar.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the connector and the side busbar facilitates the maintenance of the internal electrical components of the gas cabinet, facilitates the connection between gas cabinets, and improves the convenience of assembling gas cabinets. The cooperation between the support rod and the pin facilitates the adjustment of the support angle of the support rod and the adjustment of the support capacity of the support rod, thereby improving the adaptability of the device to different circuit devices. The cooperation between the inner liner and the outer shell facilitates the improvement of the structural strength of the device, facilitates the prevention of deformation of the outer shell, and improves the pressure resistance of the device. This device improves the pressure resistance to air pressure and improves the adaptability to gas protection of different circuit devices. 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:
[0012] Figure 1 This is a three-dimensional schematic diagram of the overall structure proposed in this utility model;
[0013] Figure 2 This is a three-dimensional schematic diagram of the main structure proposed in this utility model;
[0014] Figure 3 This is a cross-sectional view of the overall structure proposed in this utility model;
[0015] Figure 4 This is a three-dimensional schematic diagram of the support structure proposed in this utility model;
[0016] Figure 5 This is a three-dimensional schematic diagram of the connection structure proposed in this utility model;
[0017] Figure 6 This is a three-dimensional schematic diagram of the closed structure proposed in this utility model.
[0018] The numbers in the diagram are: 1. Outer shell; 2. Side busbar; 3. Protective sleeve; 4. Connector; 5. Inner liner; 6. Support plate; 7. Support rod; 8. Gland head; 9. Screwdriver; 10. Sealing strip. Detailed Implementation
[0019] 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.
[0020] Example: See Figure 1-6 This utility model discloses a fully insulated gas-filled cabinet with a reinforced structure, comprising an outer shell 1, a sealing plate installed at the front end of the outer shell 1, one side of the sealing plate being hinged to the outer shell 1, and a support assembly installed inside the outer shell 1, with a connecting assembly installed above the support assembly; an isolation plate installed at the upper end of the inner shell 1, with four mounting slots at its four ends, each containing a gland 8, the front and rear glands 8 being installed in opposite directions, and an inner liner 5 installed inside the outer shell 1, with an air inlet valve installed on one side of the lower end of the outer shell 1. The inner liner 5, made of high-strength carbon fiber, enhances the structural strength of the outer shell 1 and prevents deformation during inflation; a screw feeder 9 is installed at the middle of the front end of the sealing plate, and a sealing strip 10 is fitted around the rear periphery of the sealing plate. Both the outer shell 1 and the isolation plate have corresponding sealing grooves, and the sealing strip 10 facilitates sealing of the space below the isolation plate, preventing gas leakage.
[0021] In this novel experimental design, the support assembly includes a support plate 6 horizontally positioned below the interior of the outer shell 1. The two ends of the support plate 6 are slidably connected to the inner wall of the outer shell 1. A slide rail is horizontally mounted on the bottom surface of the support plate 6, with multiple insertion holes on the slide rail. Sliding blocks are slidably connected to both sides of the slide rail, allowing the support rod 7 to be adjusted in angle to adjust the support strength via the slide rail and sliding blocks. The support rod 7 is hinged to the sliding block, with a pin penetrating its upper end. Both ends of the pin are placed in insertion holes. A connecting block is mounted on the other end of the support rod 7, and the connecting block is fixed to the inner wall of the outer shell 1. The support rod 7 and the connecting block are hinged together. The connection assembly includes multiple side busbars 2 vertically mounted on the upper ends of both sides of the outer shell 1. One side of the side busbar 2 passes through the outer shell 1 and the inner lining plate 5 and is fixed to the outer shell 1 via a flange. A connector 4 is mounted in the middle of one side of the side busbar 2, and a protective sleeve 3 is fitted over the connector 4. A connecting hole for cooperating with the connector 4 is opened on the outer side of the other side busbar 2. Multiple gas-filled cabinets can be freely connected in series via the side busbar 2 and connector 4.
[0022] Working principle: When using this utility model, first place the circuit device that needs to be inflated and insulated on the support plate 6. At this time, the line can be connected to the upper end of the outer shell 1 through the side busbar 2, and the connecting wire is passed through the gland 8 and inserted into the isolation plate to connect to the circuit device that needs to be protected. At the same time, the output line is passed through the gland 8 in the opposite direction and out of the isolation plate to connect to other circuit devices that do not need to be inflated and insulated, and finally connected to the side busbar 2 on the other side. At this time, close the sealing plate and rotate the screw feeder 9 to fix the sealing plate. Then, the insulating gas can be introduced into the interior through the air inlet valve. When multiple gas-insulated cabinets need to be connected, the side busbars 2 of two gas-insulated cabinets can be connected through the connector 4. At this time, the internal circuits of the two gas-insulated cabinets can be connected.
[0023] 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 fully insulated gas-filled switchgear with a reinforced structure, comprising an outer shell (1), characterized in that: A sealing plate is installed at the front end of the outer shell (1), one side of the sealing plate is movably hinged to the outer shell (1), and a support component is installed inside the outer shell (1), and a connecting component is installed above the support component.
2. The fully insulated gas-filled switchgear with a reinforced structure according to claim 1, characterized in that: An isolation plate is installed inside the upper part of the outer shell (1). The isolation plate has installation slots at its four ends. A gland head (8) is installed in the installation slot. The front and rear gland heads (8) are installed in opposite directions. An inner liner plate (5) is installed inside the outer shell (1). An air intake valve is installed on one side of the lower end of the outer shell (1).
3. A fully insulated gas-filled switchgear with a reinforced structure according to claim 2, characterized in that: A screwdriver (9) is installed at the middle of the front end of the sealing plate, and a sealing strip (10) is sleeved on the periphery of the rear end of the sealing plate. The outer shell (1) and the isolation plate are both provided with corresponding sealing grooves.
4. A fully insulated gas-filled switchgear with a reinforced structure according to claim 3, characterized in that: The support assembly includes a support plate (6) horizontally disposed below the interior of the outer shell (1). The two ends of the support plate (6) are slidably connected to the inner wall of the outer shell (1), and a slide rail is horizontally installed on the bottom surface of the support plate (6). The slide rail has multiple insertion holes, and sliders are slidably connected to both sides of the slide rail.
5. A fully insulated gas-filled switchgear with a reinforced structure according to claim 4, characterized in that: A support rod (7) is movably hinged to the slider, and a pin passes through the upper end of the slider. Both ends of the pin are placed in the insertion hole. A connecting block is installed at the other end of the support rod (7). The connecting block is fixed to the inner wall of the outer shell (1), and the support rod (7) is movably hinged to the connecting block.
6. A fully insulated gas-filled switchgear with a reinforced structure according to claim 5, characterized in that: The connecting assembly includes multiple side busbars (2) vertically installed on the upper sides of the outer shell (1). One side of the side busbar (2) passes through the outer shell (1) and the inner liner (5) and is fixed to the outer shell (1) by a flange. A connector (4) is installed in the middle of one side of the side busbar (2), and a protective sleeve (3) is fitted over the connector (4). A connection hole that mates with the connector (4) is opened on the outer side of the other side of the side busbar (2).