Dynamic sealing structure of gas-insulated switchgear

Abstract

The utility model relates to the technical field of dynamic sealing structures, in particular to a dynamic sealing structure of a gas insulated switchgear. According to the technical scheme, the heat dissipation device comprises a mounting base, a driving part is fixedly mounted at the bottom of the mounting base, a transmission plate is rotatably mounted at the bottom of the driving part, a driving shaft is rotatably mounted in the mounting base, a connecting structure is fixedly mounted between the bottom of the driving shaft and the transmission plate, and a heat dissipation assembly is fixedly mounted in the mounting base. The heat dissipation assembly comprises heat dissipation holes formed in the two sides of the installation base. According to the dynamic sealing structure, the mounting seat can be fixed in the gas-insulated switchgear by rotating the driving part, the structure is simple, the operation is convenient and fast, meanwhile, the internal part of the dynamic sealing structure is cooled under a sealing condition, the damage of devices caused by overhigh internal temperature of the structure is avoided, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of dynamic sealing structures, in particular to a dynamic sealing structure for a gas-insulated switchgear (GIS). Background Art

[0002] At present, the existing dynamic sealing structure of a gas-insulated switchgear is generally installed between the load switch body and the operating mechanism. Its internal part is connected to the rotating main shaft of the switch, and the external part is connected to the bottom cam of the driving plate of the operating mechanism. Since the load switch is filled with gas inside, dynamic sealing cooperation must be adopted at the connection. This dynamic sealing structure mainly plays two roles. The first is to connect the main shaft inside the switch so that the operating mechanism can drive the internal main shaft to rotate, and the switch realizes opening and closing. The second is to prevent air leakage at the connection part.

[0003] When the dynamic sealing structure is working, heat will be generated inside the structure due to the rotation of the driving shaft, resulting in temperature rise. Usually, the dynamic sealing structure does not have a heat dissipation function. The operation of the dynamic sealing structure at high temperature may cause overheating of the internal components, damage the components, and shorten the service life of the equipment. Therefore, we propose a dynamic sealing structure for a gas-insulated switchgear. Summary of the Invention

[0004] The purpose of the utility model is to propose a theme of a dynamic sealing structure for a gas-insulated switchgear aiming at the problems existing in the background art.

[0005] The technical solution of the utility model: A dynamic sealing structure for a gas-insulated switchgear, comprising:

[0006] A mounting seat, a driving part is fixedly installed at the bottom of the mounting seat, and a transmission plate is rotatably installed at the bottom of the driving part;

[0007] A driving shaft rotatably installed in the mounting seat, and a connecting structure is fixedly installed between the bottom of the driving shaft and the transmission plate;

[0008] A heat dissipation component fixedly installed in the mounting seat, and the heat dissipation component includes heat dissipation holes opened on both sides of the mounting seat.

[0009] Optionally, the driving part is a hexagonal structure integrally formed on the mounting seat, and the diameter of the mounting seat is smaller than that of the driving part.

[0010] Optionally, a threaded joint is fixedly installed at the top of the mounting seat, a through hole is opened in the mounting seat, one end of the through hole penetrates through the driving part, and the driving shaft is rotatably installed in the through hole.

[0011] Optionally, the connection structure includes riveting holes formed in the drive plate. A riveting protrusion is fixedly installed at one end of the drive shaft close to the drive plate. A connection sleeve is provided between the drive plate and the through hole. The riveting protrusion passes through the connection sleeve and is riveted to the riveting hole.

[0012] Optionally, a bearing is sleeved at one end of the drive shaft, and a sealing ring is fixedly installed between the bearing and the through hole.

[0013] Optionally, the heat dissipation component includes a fan blade rotatably installed in the heat dissipation hole, and a sealing plate is fixedly installed on one side of the heat dissipation hole close to the through hole.

[0014] Optionally, the heat dissipation component further includes a connecting shaft fixedly installed at one end of the drive shaft close to the mounting seat. A first bevel gear is fixedly installed on the connecting shaft. A rotating shaft is rotatably installed in the mounting seat. Two second bevel gears are fixedly installed on the rotating shaft. The second bevel gears are both meshed with the first bevel gear. Both ends of the rotating shaft pass through the mounting seat and the sealing plate and extend into the heat dissipation hole. The fan blades are fixedly connected to both ends of the rotating shaft extending into the heat dissipation hole respectively.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] 1. The utility model realizes that the mounting seat can be installed in the gas-filled cabinet by only using a wrench to clamp the driving part and applying force to the driving part to make it rotate, and it will not interfere with or damage the driving shaft in the through hole. The structure is simple and the operation is convenient and fast.

[0017] 2. The utility model realizes heat dissipation inside the dynamic sealing structure under sealed conditions through the heat dissipation hole, the sealing plate, the rotating shaft, the first bevel gear, the second bevel gear, the fan blade, and the drive shaft, avoiding device damage caused by excessive temperature inside the structure and prolonging the service life of the equipment.

[0018] The utility model realizes that the mounting seat can be fixed in the gas-filled cabinet by rotating the driving part. The structure is simple and the operation is convenient and fast. At the same time, it realizes heat dissipation inside the dynamic sealing structure under sealed conditions, avoiding device damage caused by excessive temperature inside the structure and prolonging the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structural schematic diagram of the utility model is given;

[0020] Figure 2 The structural schematic diagram of the connection structure in the utility model is given;

[0021] Figure 3Provide a front view sectional structure schematic diagram of the mounting base in the present utility model.

[0022] Reference numerals: 1, mounting base; 101, through hole; 102, second bevel gear; 103, rotating shaft; 104, first bevel gear;

[0023] 2, drive plate; 3, heat dissipation holes; 4, drive part; 5, threaded joint; 6, sealing plate; 7, drive shaft; 8, bearing; 9, connecting shaft; 10, connecting sleeve; 11, fan blade; 12, riveting hole; 13, riveting protrusion. Specific embodiments

[0024] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] Generally, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model.

[0026] Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] Embodiment

[0031] As Figure 1-2 As shown, a dynamic sealing structure of an inflatable cabinet proposed by the present utility model includes a mounting base 1. A driving part 4 is fixedly installed at the bottom of the mounting base 1, and a transmission plate 2 is rotatably installed at the bottom of the driving part 4.

[0032] Among them, the driving part 4 is a hexagonal structure integrally formed on the mounting base 1. This structural design of the driving part 4 can be well matched with standard tools such as wrenches for operation. After a worker uses a wrench to clamp the driving part 4 and then rotates the wrench to apply force to the driving part 4, the mounting base 1 is fixedly installed in the inflatable cabinet through a threaded joint 5. The diameter of the mounting base 1 is smaller than that of the driving part 4.

[0033] In addition, a threaded joint 5 is fixedly installed at the top of the mounting base 1. A through hole 101 is opened in the mounting base 1. One end of the through hole 101 penetrates through the driving part 4, and a driving shaft 7 is rotatably installed in the through hole 101.

[0034] In this embodiment, a driving shaft 7 is rotatably installed in the mounting base 1. A connection structure is fixedly installed between the bottom of the driving shaft 7 and the transmission plate 2; the connection structure includes a riveting hole 12 opened on the transmission plate 2. A riveting protrusion 13 is fixedly installed at one end of the driving shaft 7 close to the transmission plate 2. A connecting sleeve 10 is provided between the transmission plate 2 and the through hole 101. The riveting protrusion 13 passes through the connecting sleeve 10 and is riveted to the riveting hole 12 to connect the transmission plate 2 with the operating mechanism of the inflatable cabinet. The rotation of the transmission plate 2 drives the driving shaft 7 to rotate. The transmission plate 2 and the mounting base 1 are separated from each other by the connecting sleeve 10 to avoid interference.

[0035] Among them, a bearing 8 is sleeved at one end of the driving shaft 7. A sealing ring is fixedly installed between the bearing 8 and the through hole 101. The bearing 8 can enable the driving shaft 7 to rotate relative to the mounting base 1 and is not easily deformed during the rotation. Moreover, the sealing ring can prevent the gas in the inflatable cabinet from leaking from the through hole 101, improving the installation sealing performance of the driving shaft 7.

[0036] As Figure 3As shown in the figure, a heat dissipation component is fixedly installed inside the mounting base 1. The heat dissipation component includes heat dissipation holes 3 opened on both sides of the mounting base 1. The heat dissipation component further includes fan blades 11 rotatably installed in the heat dissipation holes 3. A sealing plate 6 is also fixedly installed on one side of the heat dissipation hole 3 close to the through hole 101. The rotation of the fan blades 11 drives the air around the mounting base 1 to flow faster, enabling the air to transfer heat to the mounting base 1 at a faster speed, thereby dissipating heat from the mounting base 1 and achieving heat dissipation inside the dynamic sealing structure under sealed conditions.

[0037] Among them, the heat dissipation component further includes a connecting shaft 9 fixedly installed at one end of the driving shaft 7 close to the mounting base 1. A first bevel gear 104 is fixedly installed on the connecting shaft 9. A rotating shaft 103 is rotatably installed inside the mounting base 1. Two second bevel gears 102 are fixedly installed on the rotating shaft 103. The second bevel gears 102 are both meshed with the first bevel gear 104. Both ends of the rotating shaft 103 pass through the mounting base 1 and the sealing plate 6 and extend into the heat dissipation hole 3. The fan blades 11 are respectively fixedly connected to both ends of the rotating shaft 103 extending into the heat dissipation hole 3. The rotation of the driving shaft 7 drives the connecting shaft 9 fixedly installed at one end of the driving shaft 7 to rotate, causing the first bevel gear 104 to rotate, thereby driving the second bevel gear 102 to rotate, and then driving the fan blades 11 fixedly connected to both ends of the rotating shaft 103 to rotate, achieving heat dissipation for the mounting base 1, avoiding device damage caused by excessive temperature inside the structure, and extending the service life of the device.

[0038] Working principle: During the working process of the present utility model, the staff uses a wrench to clamp the driving part 4 and then rotates the wrench to apply force to the driving part 4, thereby fixedly installing the mounting base 1 inside the gas-filled cabinet through the threaded joint 5. The transmission plate 2 is connected to the operating mechanism of the gas-filled cabinet. The rotation of the transmission plate 2 drives the driving shaft 7 to rotate. The transmission plate 2 and the mounting base 1 are separated from each other through the connecting sleeve 10 to avoid interference.

[0039] The rotation of the driving shaft 7 drives the connecting shaft 9 fixedly installed at one end of the driving shaft 7 to rotate, causing the first bevel gear 104 fixedly installed on the connecting shaft 9 to rotate, thereby driving the second bevel gear 102 meshed with the first bevel gear 104 to rotate, enabling the rotating shaft 103 fixedly connected to the second bevel gear 102 to rotate inside the mounting base 1, and then driving the fan blades 11 fixedly connected to both ends of the rotating shaft 103 to rotate. The rotation of the fan blades 11 drives the air around the mounting base 1 to flow faster, enabling the air to transfer heat to the mounting base 1 at a faster speed, thereby dissipating heat from the mounting base 1 and achieving heat dissipation inside the dynamic sealing structure under sealed conditions, avoiding device damage caused by excessive temperature inside the structure, and extending the service life of the device.

[0040] The above specific embodiments are only several alternative embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An inflatable cabinet dynamic sealing structure, characterized in that, Comprising: A mounting base (1), a driving part (4) is fixedly installed at the bottom of the mounting base (1), and a transmission plate (2) is rotatably installed at the bottom of the driving part (4); A driving shaft (7) rotatably installed in the mounting base (1), a connecting structure is fixedly installed between the bottom of the driving shaft (7) and the transmission plate (2); A heat dissipation component fixedly installed in the mounting base (1), the heat dissipation component includes heat dissipation holes (3) opened on both sides of the mounting base (1).

2. The dynamic sealing structure of an inflatable cabinet according to claim 1, wherein, The driving part (4) is a hexagonal structure integrally formed on the mounting base (1), and the diameter of the mounting base (1) is smaller than that of the driving part (4).

3. The dynamic sealing structure of an inflatable cabinet according to claim 2, characterized in that A threaded joint (5) is fixedly installed at the top of the mounting base (1), a through hole (101) is opened in the mounting base (1), one end of the through hole (101) penetrates through the driving part (4), and the driving shaft (7) is rotatably installed in the through hole (101).

4. The dynamic sealing structure of an inflatable cabinet according to claim 3, characterized in that, The connecting structure includes a riveting hole (12) opened on the transmission plate (2), a riveting protrusion (13) is fixedly installed at one end of the driving shaft (7) close to the transmission plate (2), a connecting sleeve (10) is arranged between the transmission plate (2) and the through hole (101), and the riveting protrusion (13) passes through the connecting sleeve (10) and is riveted to the riveting hole (12).

5. The dynamic sealing structure of the gas-insulated switchgear according to claim 4, characterized in that A bearing (8) is sleeved at one end of the driving shaft (7), and a sealing ring is fixedly installed between the bearing (8) and the through hole (101).

6. The dynamic sealing structure of an inflatable cabinet according to claim 3, characterized in that, The heat dissipation component includes a fan blade (11) rotatably installed in the heat dissipation hole (3), and a sealing plate (6) is also fixedly installed on one side of the heat dissipation hole (3) close to the through hole (101).

7. The dynamic sealing structure of an inflatable cabinet according to claim 6, characterized in that, The heat dissipation component further includes a connecting shaft (9) fixedly installed at one end of the driving shaft (7) close to the mounting base (1), a first bevel gear (104) is fixedly installed on the connecting shaft (9), a rotating shaft (103) is rotatably installed in the mounting base (1), two second bevel gears (102) are fixedly installed on the rotating shaft (103), the second bevel gears (102) are both meshed with the first bevel gear (104), both ends of the rotating shaft (103) pass through the mounting base (1) and the sealing plate (6) and extend into the heat dissipation hole (3), and the fan blades (11) are respectively fixedly connected to both ends of the rotating shaft (103) extending into the heat dissipation hole (3).

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