A gas insulated switchgear that is easy to assemble

Abstract

The utility model relates to a gas insulation cabinet technical field, concretely relates to a gas insulation cabinet convenient to combine, including two groups of gas insulation cabinet body adjacent, two groups of gas insulation cabinet body's adjacent side face are equipped with the combined connecting structure of mutual cooperation, the combined connecting structure includes the positioning sleeve sliding connection in the right side four corner places of gas insulation cabinet body, the left side of gas insulation cabinet body with a plurality of positioning sleeve corresponding position all are fixedly connected with the positioning column, the right side of gas insulation cabinet body top respectively screw thread connection has the bus socket and gas quick connector, the utility model discloses the quick alignment of adjacent gas insulation cabinet body is realized through the design, avoids the precision problem when traditional flange bolt alignment, significantly improves the combination efficiency, and the electrical and gas passage accurate and fast butt joint are completed, further reduce the risk of deviation.

Description

Technical Field

[0001] This utility model relates to the field of gas insulation cabinet technology, and specifically to a gas insulation cabinet that is easy to assemble. Background Technology

[0002] SF6, as an insulating gas, has many advantages. It is a colorless, odorless, non-toxic, and non-flammable inert gas with excellent arc-cooling properties. In particular, it generates a high cooling effect under the high temperature of electric arcs in switchgear, avoiding the possibility of localized high temperatures. The insulation performance of SF6 far exceeds that of traditional oil and air insulating media. When used in electrical equipment, it can reduce the size of the equipment and improve the reliability of the equipment insulation. Gas-insulated cabinets are insulated by sealing all the live parts of the main circuit in a gas box and filling it with SF6.

[0003] With the surge in demand for expansion of new energy power plants and urban power grids, gas-insulated switchgear needs to be frequently combined and spliced ​​with multiple units to achieve functional expansion. At the same time, when the substation floor space is limited, vertical or horizontal splicing can reduce the equipment layout space, and faulty units can be disassembled individually to avoid power outages of the entire unit and improve the convenience of operation and maintenance. However, when combining existing gas-insulated switchgear, adjacent units are fixed with flange bolts, which requires manual tightening of each bolt. Precise alignment of the flanges is required to ensure that the gas-insulated switchgear can be combined and fixed, which poses a risk of busbar misalignment and results in low combination efficiency.

[0004] Therefore, it is of great importance to design a gas-insulated cabinet that is easy to assemble to solve the above-mentioned defects. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model designs a gas-insulated cabinet that is easy to assemble. This gas-insulated cabinet aims to solve the technical problems of high busbar misalignment risk and low assembly efficiency caused by the high alignment accuracy requirements when using flange bolts for rigid connection in existing gas-insulated cabinets.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A gas-insulated cabinet that is easy to assemble includes two adjacent sets of gas-insulated cabinet bodies, and the adjacent sides of the two sets of gas-insulated cabinet bodies are equipped with mutually cooperating combination connection structures.

[0008] The combined connection structure includes positioning sleeves that are slidably connected to the four corners on the right side of the gas-insulated cabinet. Positioning posts are fixedly connected to the left side of the gas-insulated cabinet at positions corresponding to the multiple positioning sleeves. A busbar socket and a gas quick connector are threadedly connected to the top of the right side of the gas-insulated cabinet. A busbar plug and a gas connection plug are threadedly connected to the left side of the gas-insulated cabinet at positions corresponding to the busbar socket and the gas quick connector, and the busbar plug and the gas connection plug are respectively plugged into the busbar socket and the gas quick connector.

[0009] As a preferred embodiment of this utility model, each of the four corners of the bottom of the gas-insulated cabinet is equipped with a caster wheel, and the bottom of the gas-insulated cabinet and the outer side of the multiple caster wheels are threaded with support feet.

[0010] As a preferred embodiment of this utility model, a movable groove is provided on the right side of the gas-insulated cabinet at a position corresponding to the positioning sleeve. Both ends of the positioning sleeve are fixedly connected to connectors. Both sets of connectors are slidably connected to the inner sidewall of the movable groove through a stabilizing slide groove. A buffer spring is fixedly connected between the inner side of both sets of connectors and the movable groove.

[0011] As a preferred embodiment of this utility model, both the bus socket and the bus plug are threadedly connected to the gas-insulated cabinet via a first threaded joint, and a first rubber sealing ring is fitted on the outer side of both sets of the first threaded joints.

[0012] As a preferred embodiment of this utility model, a threaded fixing sleeve is movably sleeved on the outer side of the bus plug, the threaded fixing sleeve is threadedly connected to the outer side of the bus socket, and an abutment ring and a second rubber sealing ring are respectively sleeved on the outer side of the bus socket.

[0013] As a preferred embodiment of this utility model, both the gas quick connector and the gas connection plug are threadedly connected to the gas insulation cabinet via a second threaded connector. A third rubber sealing ring is fitted on the outer side of each of the two sets of second threaded connectors. A solenoid valve is fixedly installed at the connection point between the gas quick connector and the gas connection plug and the second threaded connector.

[0014] As a preferred embodiment of this utility model, a sliding sleeve is slidably connected to the outer side of the gas quick connector, and a compression spring is sleeved on the outer side of the gas quick connector and inside the sliding sleeve. The two ends of the compression spring are fixedly connected to the gas quick connector and the sliding sleeve, respectively. Multiple sets of locking balls are movably installed inside the gas quick connector. A locking groove is opened on the outer side of the gas connector at a position corresponding to the locking ball. A fourth rubber sealing ring is sleeved on both the front and rear ends of the outer side of the gas quick connector and located on the sliding sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, the design of the combined connection structure allows for rapid alignment of adjacent gas-insulated cabinets by moving the positioning pins with the positioning sleeves during assembly via casters. This avoids the accuracy issues associated with traditional flange bolt alignment and significantly improves assembly efficiency. Furthermore, the design of the busbar plug and busbar socket connection, as well as the gas connection plug and gas quick connector connection, facilitates precise and rapid connection of electrical and gas pathways after the rapid alignment of adjacent gas-insulated cabinets, further reducing the risk of misalignment. Attached Figure Description

[0017] Figure 1 This is a diagram showing the assembled state of the gas-insulated cabinet of this utility model;

[0018] Figure 2 This is a schematic diagram of the gas-insulated cabinet structure of this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 2 Enlarged view at point B in the middle;

[0021] Figure 5 This is a schematic diagram of the internal structure of the gas quick connector and gas connection plug of this utility model.

[0022] In the diagram: 1. Gas-insulated cabinet; 101. Casters; 102. Support feet; 2. Combined connection structure; 3. Positioning sleeve; 301. Movable groove; 302. Connector; 303. Stabilizing slide groove; 304. Buffer spring; 4. Positioning post; 5. Busbar socket; 501. First threaded connector; 502. First rubber sealing ring; 503. Threaded fixing sleeve; 504. Abutment ring; 505. Second rubber sealing ring; 6. Gas quick connector; 601. Second threaded connector; 602. Third rubber sealing ring; 603. Solenoid valve; 604. Sliding sleeve; 605. Compression spring; 606. Locking ball; 607. Locking groove; 608. Fourth rubber sealing ring; 7. Busbar plug; 8. Gas connection plug. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example: Please refer to Figures 1-5 This utility model provides a technical solution:

[0025] A gas-insulated cabinet that is easy to assemble includes two adjacent sets of gas-insulated cabinet bodies 1, and the adjacent sides of the two sets of gas-insulated cabinet bodies 1 are equipped with mutually cooperating combination connection structures 2.

[0026] First, in this embodiment, the specific structure of the combined connection structure 2 is as follows:

[0027] The combined connection structure 2 includes positioning sleeves 3 slidably connected to the four corners on the right side of the gas-insulated cabinet 1. Positioning posts 4 are fixedly connected to the left side of the gas-insulated cabinet 1 at positions corresponding to the multiple positioning sleeves 3. Busbar sockets 5 and gas quick connectors 6 are threadedly connected to the top right side of the gas-insulated cabinet 1. Busbar plugs 7 and gas connection plugs 8 are threadedly connected to the left side of the gas-insulated cabinet 1 at positions corresponding to the busbar sockets 5 and gas quick connectors 6. The busbar plugs 7 and gas connection plugs 8 are respectively inserted into the busbar sockets 5 and gas quick connectors 6. By inserting the positioning posts 4 into the positioning sleeves 3, the adjacent gas-insulated cabinets 1 can be quickly aligned, avoiding the accuracy problems of traditional flange bolt alignment and significantly improving the assembly efficiency. The insertion design of the busbar plugs 7 into the busbar sockets 5 and the insertion design of the gas connection plugs 8 into the gas quick connectors 6 facilitate the accurate and rapid connection of electrical and gas passages after the adjacent gas-insulated cabinets 1 are quickly aligned, further reducing the risk of misalignment.

[0028] Furthermore, each of the four corners at the bottom of the gas-insulated cabinet 1 is equipped with a caster wheel 101. Support feet 102 are threadedly connected to the bottom of the gas-insulated cabinet 1 and to the outside of the multiple caster wheels 101. The caster wheels 101 facilitate the movement and adjustment of the gas-insulated cabinet 1 to adapt to different layout requirements. The threaded connection design of the support feet 102 allows for height adjustment, ensuring the stability of the gas-insulated cabinet 1 after assembly, while also preventing the caster wheels 101 from sliding due to load after assembly.

[0029] Then, a movable groove 301 is provided on the right side of the gas-insulated cabinet 1 at the position corresponding to the positioning sleeve 3. Both ends of the positioning sleeve 3 are fixedly connected to connectors 302. Both sets of connectors 302 are slidably connected to the inner wall of the movable groove 301 through a stabilizing slide 303. A buffer spring 304 is fixedly connected between the inner side of the two sets of connectors 302 and the movable groove 301. The connectors 302 at both ends of the positioning sleeve 3 slide through the stabilizing slide 303, and the buffer spring 304 absorbs the impact force during docking, protecting precision components, such as busbar plug-in parts, from rigid collision damage.

[0030] Furthermore, both the bus socket 5 and the bus plug 7 are threadedly connected to the gas-insulated cabinet 1 via the first threaded connector 501. The outer side of both sets of first threaded connectors 501 is fitted with a first rubber sealing ring 502. After the bus socket 5 and the bus plug 7 are installed and fixed on the outside of the gas-insulated cabinet 1 via the first threaded connector 501, the end located inside the gas-insulated cabinet 1 is electrically connected to the internal components. At the same time, the first rubber sealing ring 502 ensures the sealing performance after connection.

[0031] The bus plug 7 is movably fitted with a threaded fixing sleeve 503, which is threadedly connected to the outside of the bus socket 5. The outside of the bus socket 5 is fitted with an abutment ring 504 and a second rubber sealing ring 505. After the adjacent gas-insulated cabinets 1 are aligned, the bus plug 7 is inserted into the inside of the bus socket 5. An operating gap is left between the adjacent gas-insulated cabinets 1. The threaded fixing sleeve 503 can be rotated to fix its threads to the outside of the bus socket 5. After the threaded fixing sleeve 503 is rotated into place, its inner side is limited by the limiting ring on the outside of the bus plug 7, and its bottom end near the bus socket 5 abuts against the abutment ring 504. The abutment ring 504 presses against the second rubber sealing ring 505. After the second rubber sealing ring 505 is compressed by the abutment ring 504, it fills the annular gap between the bus socket 5 and the bus plug 7, further improving the sealing performance after connection.

[0032] Secondly, both the gas quick connector 6 and the gas connection plug 8 are threaded to the gas insulation cabinet 1 through the second threaded connector 601. The outer side of both sets of second threaded connectors 601 is fitted with a third rubber sealing ring 602. A solenoid valve 603 is fixedly installed at the connection between the gas quick connector 6 and the gas connection plug 8 and the second threaded connector 601. After the gas quick connector 6 and the gas connection plug 8 are connected to the gas insulation cabinet 1 through the second threaded connector 601, the third rubber sealing ring 602 ensures the sealing of the connection. The solenoid valve 603 is used to control the gas flow, so as to automatically isolate the gas passage when the gas insulation cabinet 1 is assembled or disassembled separately.

[0033] Finally, a sliding sleeve 604 is slidably connected to the outer side of the gas quick connector 6. A compression spring 605 is fitted inside the sliding sleeve 604 on the outer side of the gas quick connector 6. The two ends of the compression spring 605 are fixedly connected to the gas quick connector 6 and the sliding sleeve 604, respectively. Multiple sets of locking balls 606 are movably installed inside the gas quick connector 6. A locking groove 607 is provided on the outer side of the gas connector 8 at a position corresponding to the locking ball 606. A fourth rubber sealing ring 608 is fitted on both the front and rear ends of the sliding sleeve 604 on the outer side of the gas quick connector 6. When the gas connector 8 is inserted into the gas quick connector 6, the sliding sleeve 604 is slid out of the locking ball 604 through the operating gap between adjacent gas insulating cabinets 1. External constraints at 06 compress the compression spring 605, allowing the gas connector plug 8 to be inserted into the gas quick connector 6. During insertion, the end of the gas connector plug 8 pushes the locking ball 606 into the gas quick connector 6 for smooth insertion. After releasing the sliding sleeve 604, the compression spring 605 returns to its original position. Multiple locking balls 606, constrained by the sliding sleeve 604, are locked into the locking groove 607. The pre-tension of the compression spring 605 ensures the restraining effect of the sliding sleeve 604, thus guaranteeing the firmness of the connection between the gas connector plug 8 and the gas quick connector 6. Simultaneously, the fourth rubber sealing ring 608 ensures the sealing performance after connection, significantly improving the efficiency and reliability of the gas insulation cabinet 1 assembly.

[0034] In this embodiment, the specific implementation scenario is as follows: During the assembly of the gas-insulated cabinet 1, the moving wheels 101 are used to move the positioning pin 4 and insert it into the positioning sleeve 3. The connectors 302 at both ends of the positioning sleeve 3 slide through the stabilizing grooves 303, and the buffer springs 304 absorb the impact force during docking, protecting precision components, such as the busbar connection points, from rigid collision damage, and achieving rapid alignment of adjacent gas-insulated cabinets 1. After the busbar socket 5 and busbar plug 7 are installed and fixed on the outside of the gas-insulated cabinet 1 through the first threaded connector 501, the end located inside the gas-insulated cabinet 1 is electrically connected to the internal components. At the same time, the first rubber sealing ring 502 ensures the tightness of the connection. After the adjacent gas-insulated cabinets 1 are aligned, the bus plug 7 is inserted into the bus socket 5. An operating gap is left between the adjacent gas-insulated cabinets 1. The rotatable threaded fixing sleeve 503 is threadedly fixed to the outside of the bus socket 5. After the threaded fixing sleeve 503 is rotated into place, its inner side is limited by the limiting ring on the outside of the bus plug 7, while its bottom end near the bus socket 5 abuts against the abutment ring 504. The abutment ring 504 presses against the second rubber sealing ring 505. After the second rubber sealing ring 505 is compressed by the abutment ring 504, it fills the annular gap between the bus socket 5 and the bus plug 7, further improving the sealing performance after connection. The gas quick connector 6 and the gas connection plug 8 are connected via the first... After the threaded connector 601 is connected to the gas-insulated cabinet 1, the third rubber sealing ring 602 ensures the sealing of the connection. The solenoid valve 603 is used to control the gas flow, facilitating automatic isolation of the gas passage when the gas-insulated cabinet 1 is assembled or disassembled separately. When the gas connector 8 is inserted into the gas quick connector 6, the sliding sleeve 604, through the operating gap between adjacent gas-insulated cabinets 1, releases the external restriction on the locking ball 606. At this time, the compression spring 605 is compressed, allowing the gas connector 8 to be inserted into the gas quick connector 6. When the gas connector 8 is inserted, its end pushes the locking ball 606 into the gas quick connector 6 for smooth insertion. After the sliding sleeve 604 is released, the compression spring 605 returns to its original position. Multiple sets of locking balls 606 are locked into the locking groove 607 under the restriction of the sliding sleeve 604. The pre-tightening force of the compression spring 605 ensures the restriction effect of the sliding sleeve 604, thereby ensuring the firmness of the connection between the gas connector 8 and the gas quick connector 6. At the same time, the fourth rubber sealing ring 608 ensures the sealing performance after connection. The entire operation process is simple and convenient. This utility model achieves rapid alignment of adjacent gas-insulated cabinets 1 through design, avoiding the accuracy problems of traditional flange bolt alignment, significantly improving the combination efficiency, facilitating accurate and rapid connection of electrical and gas passages, and further reducing the risk of misalignment.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas insulated switchgear for easy assembly comprising two adjacent groups of gas insulated switchgear bodies (1), characterized in that: The adjacent sides of the two sets of gas-insulated cabinets (1) are equipped with mutually cooperating combination connection structures (2); The combined connection structure (2) includes positioning sleeves (3) that are slidably connected to the four corners on the right side of the gas-insulated cabinet (1). Positioning posts (4) are fixedly connected to the left side of the gas-insulated cabinet (1) at positions corresponding to the multiple positioning sleeves (3). A bus socket (5) and a gas quick connector (6) are threadedly connected to the top right side of the gas-insulated cabinet (1). A bus plug (7) and a gas connection plug (8) are threadedly connected to the left side of the gas-insulated cabinet (1) at positions corresponding to the bus socket (5) and the gas quick connector (6). The bus plug (7) and the gas connection plug (8) are respectively plugged into the bus socket (5) and the gas quick connector (6).

2. A gas insulated switchgear according to claim 1, characterized in that: The gas-insulated cabinet (1) is equipped with four corners at the bottom, and the bottom of the gas-insulated cabinet (1) and the outside of the multiple sets of moving wheels (101) are threaded with support feet (102).

3. A gas insulated switchgear according to claim 1, characterized in that: A movable groove (301) is provided on the right side of the gas-insulated cabinet (1) at a position corresponding to the positioning sleeve (3). Both ends of the positioning sleeve (3) are fixedly connected to connectors (302). Both sets of connectors (302) are slidably connected to the inner wall of the movable groove (301) through a stabilizing slide groove (303). A buffer spring (304) is fixedly connected between the inner side of the two sets of connectors (302) and the movable groove (301).

4. A gas insulated switchgear according to claim 1, characterized in that: Both the bus socket (5) and the bus plug (7) are threadedly connected to the gas-insulated cabinet (1) through the first threaded joint (501), and the outer sides of both sets of the first threaded joints (501) are fitted with first rubber sealing rings (502).

5. A gas insulated switchgear according to claim 1, characterized in that: The outer side of the bus plug (7) is movably fitted with a threaded fixing sleeve (503), which is threadedly connected to the outer side of the bus socket (5). The outer side of the bus socket (5) is fitted with an abutment ring (504) and a second rubber sealing ring (505).

6. A gas insulated switchgear according to claim 1, characterized in that: The gas quick connector (6) and the gas connection plug (8) are both threadedly connected to the gas insulation cabinet (1) through the second threaded connector (601). The outer sides of the two sets of second threaded connectors (601) are fitted with third rubber sealing rings (602). A solenoid valve (603) is fixedly installed at the connection between the gas quick connector (6) and the gas connection plug (8) and the second threaded connector (601).

7. A gas insulated switchgear according to claim 1, characterized in that: A sliding sleeve (604) is slidably connected to the outside of the gas quick connector (6). A compression spring (605) is sleeved on the outside of the gas quick connector (6) and inside the sliding sleeve (604). The two ends of the compression spring (605) are fixedly connected to the gas quick connector (6) and the sliding sleeve (604) respectively. Multiple sets of locking balls (606) are movably installed inside the gas quick connector (6). A locking groove (607) is opened on the outside of the gas connector (8) at a position corresponding to the locking ball (606). A fourth rubber sealing ring (608) is sleeved on the outside of the gas quick connector (6) and at both the front and rear ends of the sliding sleeve (604).

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