Gas-insulated switchgear sealing device

Abstract

The utility model relates to the field of gas-insulated switchgears, in particular to a gas-insulated switchgear sealing device which comprises a gas-insulated switchgear, an assembly shell, a moving part, supporting legs and a gas port, the four supporting legs with the same specification are installed on the lower side of the gas-insulated switchgear, the assembly shell is installed at the upper end of the front side of the gas-insulated switchgear, the moving part is installed on the upper side of the assembly shell, and the gas port is formed in the front side of the assembly shell. The telescopic shaft can horizontally move and stretch, the fixed part is fixedly installed on the telescopic shaft, the fixed part and the movable part are connected and installed through the fixed rod, the horizontal position of the telescopic shaft can be adjusted, and the function of opening and closing an air port of the sealing rubber air cushion is achieved. The diameter of the sealing rubber air cushion is far larger than that of the air port, gas leakage can be effectively avoided, the sealing rubber air cushions are arranged on the two sides in the cylindrical thin wall, and the sealing performance is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of inflatable cabinets, in particular to a sealing device for an inflatable cabinet. Background Art

[0002] The inflatable cabinet is suitable for small secondary substations, switchgear, box-type substations, residential areas, industrial and mining enterprises, and large shopping malls in the power system, and is particularly suitable for airports, subways, railways and other places with high electricity requirements. A Chinese patent discloses a sealing device for an inflatable cabinet (authorization announcement number CN 214037847U). The patented technology can achieve sealing of the installation cylinder through the cooperation between the first limit ring and the first sealing rubber to prevent gas leakage, and further seal the installation cylinder through the cooperation between the second limit ring and the second sealing rubber, thereby increasing the sealing of the installation cylinder to prevent gas leakage. A connecting rod is provided to connect the first sealing rubber and the second sealing rubber, thereby achieving synchronous movement of the first sealing rubber and the second sealing rubber, thereby achieving the gas head through the installation cylinder to the inside of the inflatable box, and a spring is provided to push the first sealing rubber to the left, thereby The first sealing rubber is sealed with the first limiting ring, and at the same time, the second sealing rubber is pulled to the left under the action of the connecting rod, so that the second sealing rubber is sealed with the right side of the second limiting ring, increasing the sealing performance of the installation tube and avoiding air leakage of the installation tube. The first sealing rubber is limited by the cooperation between the slider and the slide groove to avoid the first sealing rubber being misaligned with the first limiting ring when sliding back to its position, thereby causing air leakage of the installation tube. However, the sealing mechanism used involves a spring. Under the action of the high-pressure strong inflatable cabinet, the elastic potential energy of the spring is too large and the spring will deform, resulting in low sealing performance and leakage. Therefore, those skilled in the art provide an inflatable cabinet sealing device to solve the problems raised in the above background technology. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an inflatable cabinet sealing device, including an inflatable cabinet, an assembly shell, a movable part, a support leg, and an air port. Four support legs of the same specifications are installed on the lower side of the inflatable cabinet, the assembly shell is installed at the upper end of the front side of the inflatable cabinet, the movable part is installed on the upper side of the assembly shell, and the front side of the assembly shell is provided with an air port.

[0004] Preferably: a second fixing plate is installed inside the air port, a cylindrical thin wall is connected to the rear side of the second fixing plate, a first fixing plate is connected to the rear side of the cylindrical thin wall, and the first fixing plate and the second fixing plate are fixedly installed by a second screw;

[0005] Preferably: a cavity is provided in the cylindrical thin wall, a sealing rubber air cushion is installed in the cavity, an assembly groove is installed on the sealing rubber air cushion, the assembly groove is installed on the assembly part, and the assembly part is installed on the left side port of the telescopic shaft;

[0006] Preferably: the right side of the telescopic shaft is connected to the mounting cylinder, the right side of the cylinder is mounted with a first fixing plate, the first fixing plate is provided with a first screw hole, the left side of the cylinder is mounted with a fixing ring, the left side of the fixing ring is mounted with a first bearing, the left side of the first bearing is mounted with a second fixing plate, the second fixing plate is provided with a second screw hole, the middle position of the second fixing plate is provided with a round hole, and the first fixing plate and the second fixing plate are fixedly mounted by a first screw rod;

[0007] Preferably: a third fixing plate is installed on the left side of the second fixing plate, a slot is provided on the second fixing plate, a plug plate is installed in the slot, and the second fixing plate and the third fixing plate are fixedly installed by the plug plate;

[0008] Preferably: the third fixing plate is provided with a third screw hole, a second bearing is installed on the left side of the third fixing plate, an axial hole is provided in the second bearing, and the third fixing plate and the support plate are fixedly installed by nuts;

[0009] Preferably, a fixing rod is installed on the right side of the third fixing plate, a fixing piece is installed on the lower side of the fixing rod, the fixing piece is fixedly installed on the telescopic shaft, and a moving piece is installed on the upper side of the fixing rod.

[0010] Technical effects and advantages of the utility model:

[0011] 1. The telescopic shaft can be extended and retracted horizontally by utilizing the function of the cylinder. A fixed part is fixed on the telescopic shaft. The fixed part and the movable part are connected and installed through a fixed rod. The horizontal position of the telescopic shaft can be adjusted. In addition, an assembly part is installed on the left side of the telescopic shaft. A sealing rubber air cushion is installed on the assembly part. The function of opening and closing the air port of the sealing rubber air cushion can be achieved by adjusting the horizontal position of the telescopic shaft.

[0012] 2. The sealing rubber air cushion is installed in the cylindrical thin wall, and the diameter of the sealing rubber air cushion is much larger than the diameter of the air port, which can effectively prevent gas leakage. Sealing rubber air cushions are provided on both sides of the cylindrical thin wall to enhance the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an inflatable cabinet sealing device provided in an embodiment of the present application;

[0014] Figure 2 It is a schematic diagram of a partial cross-sectional structure of an inflatable cabinet sealing device provided in an embodiment of the present application;

[0015] Figure 3 It is a partial structural schematic diagram of an inflatable cabinet sealing device provided in an embodiment of the present application;

[0016] Figure 4 It is a schematic diagram of a partial cross-sectional structure of an inflatable cabinet sealing device provided in an embodiment of the present application;

[0017] Figure 5It is a schematic diagram of a local explosion structure in an inflatable cabinet sealing device provided in an embodiment of the present application.

[0018] In the figure: 1, inflatable cabinet; 2, assembly shell; 3, plug plate; 4, cylinder; 5, second fixed plate; 6, third fixed plate; 7, first fixed disk; 8, second fixed disk; 9, first screw; 10, nut; 11, second screw; 12, cavity; 13, fixing ring; 14, first bearing; 15, telescopic shaft; 16, assembly part; 17, sealing rubber air cushion; 18, moving part; 101, support foot; 201, air port; 202, support plate; 401, first fixed plate; 402, first screw hole; 501, second screw hole; 502, round hole; 503, slot; 601, third screw hole; 602, second bearing; 603, shaft hole; 701, cylindrical thin wall; 1701, assembly groove; 1801, fixing rod; 1802, fixing part. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0020] Example

[0021] See also Figure 1 to Figure 5 In this embodiment, a gas cabinet sealing device is provided, including a gas cabinet 1, an assembly shell 2, a moving part 18, a support leg 101, and an air port 201. Four support legs 101 of the same specification are installed on the lower side of the gas cabinet 1, the assembly shell 2 is installed at the upper end of the front side of the gas cabinet 1, the moving part 18 is installed on the upper side of the assembly shell 2, and the air port 201 is provided on the front side of the assembly shell 2;

[0022] Specifically, the second fixing plate 8 is installed inside the air port 201, the rear side of the second fixing plate 8 is connected to the cylindrical thin wall 701, the rear side of the cylindrical thin wall 701 is connected to the first fixing plate 7, and the first fixing plate 7 and the second fixing plate 8 are fixedly installed by the second screw 11;

[0023] A cavity 12 is provided in the cylindrical thin wall 701, a sealing rubber air cushion 17 is installed in the cavity 12, a mounting groove 1701 is installed on the sealing rubber air cushion 17, the mounting groove 1701 is installed on the mounting part 16, and the mounting part 16 is installed on the left side port of the telescopic shaft 15;

[0024] The right side of the telescopic shaft 15 is connected to the cylinder 4, the first fixing plate 401 is installed on the right side of the cylinder 4, the first fixing plate 401 is provided with a first screw hole 402, the fixing ring 13 is installed on the left side of the cylinder 4, the first bearing 14 is installed on the left side of the fixing ring 13, the second fixing plate 5 is installed on the left side of the first bearing 14, the second fixing plate 5 is provided with a second screw hole 501, the middle position of the second fixing plate 5 is provided with a round hole 502, and the first fixing plate 401 and the second fixing plate 5 are fixedly installed by the first screw rod 9;

[0025] The third fixing plate 6 is installed at the left side of the second fixing plate 5. The second fixing plate 5 is provided with a slot 503. The inserting plate 3 is installed in the slot 503. The second fixing plate 5 and the third fixing plate 6 are fixedly installed through the inserting plate 3.

[0026] The third fixing plate 6 is provided with a third screw hole 601, a second bearing 602 is installed on the left side of the third fixing plate 6, a shaft hole 603 is provided in the second bearing 602, and the third fixing plate 6 and the support plate 202 are fixedly installed by a nut 10;

[0027] A fixing rod 1801 is installed on the right side of the third fixing plate 6 , a fixing member 1802 is installed on the lower side of the fixing rod 1801 , the fixing member 1802 is fixedly installed on the telescopic shaft 15 , and a moving member 18 is installed on the upper side of the fixing rod 1801 .

[0028] The working principle of the utility model is:

[0029] When using an inflatable cabinet sealing device, the cylinder 4 is used to realize horizontal displacement and extension of the telescopic shaft 15. A fixing part 1802 is fixedly installed on the telescopic shaft 15. The fixing part 1802 and the movable part 18 are connected and installed through a fixing rod 1801. The horizontal position of the telescopic shaft 15 can be adjusted to realize the function of opening and closing the air port 201 of the sealing rafter rubber air cushion 17. The sealing rubber air cushion 17 is installed in the cylindrical thin wall 701, and the diameter of the sealing rubber air cushion 17 is much larger than the diameter of the air port 201, which can effectively prevent gas leakage. Sealing rubber air cushions 17 are provided on both sides of the cylindrical thin wall 701 to enhance the sealing performance.

[0030] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. An inflatable cabinet sealing device, characterized in that: The invention comprises an inflatable cabinet (1), an assembly shell (2), a moving part (18), a support leg (101), and an air port (201). Four support legs (101) of the same specification are installed on the lower side of the inflatable cabinet (1), the assembly shell (2) is installed at the upper end of the front side of the inflatable cabinet (1), the moving part (18) is installed on the upper side of the assembly shell (2), and the air port (201) is provided on the front side of the assembly shell (2).

2. The sealing device of the inflatable cabinet according to claim 1, characterized in that: A second fixed disk (8) is installed inside the air port (201), the rear side of the second fixed disk (8) is connected to a cylindrical thin wall (701), the rear side of the cylindrical thin wall (701) is connected to a first fixed disk (7), and the first fixed disk (7) and the second fixed disk (8) are fixedly installed by a second screw rod (11).

3. The sealing device of the inflatable cabinet according to claim 2, characterized in that: The cylindrical thin wall (701) is provided with a cavity (12), a sealing rubber air cushion (17) is installed in the cavity (12), an assembly groove (1701) is installed on the sealing rubber air cushion (17), the assembly groove (1701) is installed on the assembly part (16), and the assembly part (16) is installed on the left side port of the telescopic shaft (15).

4. The sealing device of the inflatable cabinet according to claim 3, characterized in that: The right side of the telescopic shaft (15) is connected to the cylinder (4), the right side of the cylinder (4) is installed with a first fixing plate (401), the first fixing plate (401) is provided with a first screw hole (402), the left side of the cylinder (4) is installed with a fixing ring (13), the left side of the fixing ring (13) is installed with a first bearing (14), the left side of the first bearing (14) is installed with a second fixing plate (5), the second fixing plate (5) is provided with a second screw hole (501), the middle position of the second fixing plate (5) is provided with a round hole (502), and the first fixing plate (401) and the second fixing plate (5) are fixedly installed by a first screw rod (9).

5. The sealing device of the inflatable cabinet according to claim 4, characterized in that: A third fixing plate (6) is installed at the left side of the second fixing plate (5); a slot (503) is provided on the second fixing plate (5), an inserting plate (3) is installed in the slot (503), and the second fixing plate (5) and the third fixing plate (6) are fixedly installed via the inserting plate (3).

6. The sealing device of the inflatable cabinet according to claim 5, characterized in that: The third fixing plate (6) is provided with a third screw hole (601), a second bearing (602) is installed on the left side of the third fixing plate (6), an axial hole (603) is provided in the second bearing (602), and the third fixing plate (6) and the support plate (202) are fixedly installed by a nut (10).

7. The sealing device of the inflatable cabinet according to claim 6, characterized in that: A fixing rod (1801) is installed on the right side of the third fixing plate (6), a fixing member (1802) is installed on the lower side of the fixing rod (1801), the fixing member (1802) is fixedly installed on the telescopic shaft (15), and a moving member (18) is installed on the upper side of the fixing rod (1801).

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