Gas-insulated switchgear

Abstract

The utility model relates to an inflatable cabinet, and relates to the field of inflatable cabinets. The device comprises a plurality of cabinet boxes and a voltage-sharing assembly connected with the cabinet boxes, the voltage-sharing assembly comprises an equipment base, a voltage-sharing shell and a movable plug set, the voltage-sharing shell is installed in the equipment base and fixedly connected with the equipment base, a connecting pipe set connected with the cabinet boxes is installed on the voltage-sharing shell, and the movable plug set is fixedly connected with the equipment base. The connecting pipe set is fixedly connected with the pressure equalizing shell in a sealed mode, and the lower end face of the movable plug set is installed in the equipment base in a sliding mode. According to the invention, the pressure equalizing assembly is arranged outside the cabinet boxes, and the pressure equalizing assembly is communicated with each cabinet box through the connecting pipe group, so that each cabinet box can be ensured to act with the connecting pipe group during use, and the purpose of balancing respective air pressure is achieved; the electrical equipment in each cabinet box can be ensured to be used in the same pressure environment, and the air pressure balance among the cabinet boxes is realized through the ingenious design of the pressure equalizing assembly.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of air-filled cabinets, in particular to an air-filled cabinet. BACKGROUND

[0002] With the acceleration of domestic urban power grid construction and reconstruction, the market demand for air-filled cabinets is increasing year by year, and with the development of the power system, higher requirements are put forward for the safety and reliability of electrical equipment.

[0003] The existing Chinese patent with the publication number CN214798555U discloses an air-filled cabinet, which comprises a main cabinet, a cabinet door is arranged at the lower part of the front end of the main cabinet, three hinges are arranged at the left end of the cabinet door and the left part of the front end of the main cabinet, an observation port is arranged at the upper part of the front end of the main cabinet, a transparent glass is arranged at the front end of the observation port, a limiting ring is fixedly arranged at the right part of the front end of the cabinet door, a door handle is fixedly arranged at the front end of the limiting ring, a plurality of heat dissipation grooves are arranged in the middle part and the right end of the left end of the main cabinet, and a plurality of connecting holes are arranged at the lower part of the left end of the main cabinet.

[0004] According to the related technology in the above, in actual use, the air pressure in each cabinet may fluctuate due to external factors such as temperature, thereby causing other unbalanced conditions in the cabinet, which may affect the normal operation of electrical equipment and even cause damage to the equipment, especially when the temperature changes greatly, the air-filled cabinet has safety hazards. CONTENT OF THE UTILITY MODEL

[0005] In order to balance the air pressure in each air-filled cabinet and increase the safety of the air-filled cabinet, the application provides an air-filled cabinet.

[0006] The air-filled cabinet provided by the application adopts the following technical scheme:

[0007] An air-filled cabinet comprises a plurality of cabinet groups and a pressure equalizing assembly connected with the cabinet groups, the pressure equalizing assembly comprises a device seat, a pressure equalizing shell and a movable plug group, the pressure equalizing shell is installed in the device seat and is fixedly connected with the device seat, a connecting pipe group connected with the cabinet groups is installed on the pressure equalizing shell, the connecting pipe group is sealingly and fixedly connected with the pressure equalizing shell, the lower end surface of the movable plug group is slidingly installed in the device seat, and the head of the movable plug group extends into the pressure equalizing shell, and the movable plug group is sealingly and slidingly connected with the pressure equalizing shell.

[0008] By adopting the technical scheme, the equalizing assembly is arranged, and the connecting pipe group is used to connect the cabinet boxes with the equalizing shell, so that the cabinet boxes are communicated with each other through the equalizing assembly in use, and the equalizing assembly is designed as a structure matched with the equipment seat, the equalizing shell and the movable plug group, so that the equipment seat can be fixed and installed outside the cabinet box in use, the equalizing shell and the movable plug group can be installed on the equipment seat after the equipment seat is fixed, and the movable plug group can slide in the equipment seat and the equalizing shell according to the change of the air pressure in the cabinet box, so that the air pressure balance between the cabinet boxes is realized, and the performance and safety of the gas-filled cabinet are improved.

[0009] Optionally, the equipment seat comprises a seat frame and a top plate, the top plate is symmetrically arranged at the head of the seat frame, and the top plate is fixedly connected with the seat frame.

[0010] By adopting the technical scheme, the equipment seat adopts the structure of the seat frame and the top plate, the top plate is symmetrically arranged at the head of the seat frame and is fixedly connected, a stable installation basis is provided for the equalizing shell and the movable plug group, the overall stability of the equalizing assembly is ensured, the equalizing shell and the movable plug group are installed between the seat frame and the top plate, and the upper end of the equalizing shell is fixed on the top plate, so that the equalizing shell and the movable plug group can be stably installed and used on the equipment seat.

[0011] Optionally, positioning inner plates are symmetrically arranged on the inner side of the seat frame, the positioning inner plates are integrally formed with the seat frame, and guide sliding rods for sliding installation of the movable plug group are further arranged between the positioning inner plates and the seat frame, and the two ends of the guide sliding rods are fixedly connected with the positioning inner plates and the seat frame.

[0012] By adopting the technical scheme, the two groups of positioning inner plates are fixedly installed on the inner side of the seat frame, so that the guide sliding rods can be fixedly installed through the positioning inner plates, the positioning inner plates on the inner side of the seat frame are integrally formed with the seat frame, and the structural strength of the seat frame is enhanced. The guide sliding rods provide a guide function for sliding of the movable plug group, so that the movable plug group can slide stably, and the accuracy of air pressure balance is ensured.

[0013] Optionally, the equalizing shell comprises a main frame shell and a connecting pipe head, the connecting pipe head is uniformly arranged on the upper end surface of the main frame shell, and the connecting pipe head is sealingly and fixedly connected with the main frame shell.

[0014] By adopting the technical scheme, the main frame shell and the connecting pipe head structure of the equalizing shell are convenient to use, the connecting pipe head is uniformly arranged on the upper end surface of the main frame shell and is sealingly and fixedly connected, the connecting pipe group is connected with the cabinet boxes, the gas can uniformly flow between the cabinet boxes and the equalizing shell, and the equalizing effect is improved.

[0015] Optionally, the movable plug set comprises a sealing part and an elastic support, the sealing part is installed in the main frame shell and is in sealing sliding connection with the main frame shell, and the elastic support is slidingly installed on the guide sliding rod and is supported at the lower end surface of the sealing part.

[0016] By adopting the above technical scheme, the movable plug set is designed as a structure in which the sealing part and the elastic support are matched, and the sealing part of the movable plug set is in sealing sliding connection with the main frame shell, so that the sealing property in the equalizing shell is ensured. The elastic support is slidingly installed on the guide sliding rod and supports the sealing part, so that the position of the sealing part can be flexibly adjusted according to the change of the air pressure, and air pressure balance is realized.

[0017] Optionally, the sealing part comprises a positioning sliding block and a sealing block, a stable support rod is fixedly installed at the upper end surface of the positioning sliding block, and the sealing block is fixedly installed at the upper end surface of the stable support rod.

[0018] By adopting the above technical scheme, the sealing part is designed as a structure in which the positioning sliding block, the stable support rod and the sealing block are matched, so that the stability of the sealing block is ensured by the stable support rod during use, and the sealing block can better cooperate with the main frame shell, so that good sealing effect is realized.

[0019] Optionally, the elastic support comprises a horizontal sliding plate and a supporting spring, the two ends of the horizontal sliding plate are slidingly installed on the guide sliding rod, and the supporting spring is fixedly installed between the horizontal sliding plate and the positioning sliding block.

[0020] By adopting the above technical scheme, the horizontal sliding plate and the supporting spring structure of the elastic support can ensure stable support of the sealing part during use, the horizontal sliding plate slides on the guide sliding rod, the supporting spring provides elastic support, the movable plug set can automatically adjust the position according to the change of the air pressure, and the sensitivity of air pressure balance is improved.

[0021] Optionally, a threaded sleeve is integrally formed at the inner side of the bottom surface of the seat frame, a supporting screw is threadedly connected in the threaded sleeve, and the head of the supporting screw is supported at the lower end surface of the horizontal sliding plate.

[0022] By adopting the threaded sleeve and the supporting screw structure at the bottom surface of the seat frame, the initial position of the horizontal sliding plate can be adjusted by rotating the supporting screw, so that the initial state of the movable plug set is adjusted, and debugging and maintenance of air pressure balance of the air charging cabinet are facilitated.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: the present application sets the equalizing assembly outside the cabinet box, and connects the equalizing assembly with each cabinet box through the connecting pipe group, so that each cabinet box can be connected with the connecting pipe group during use, balance the air pressure of each cabinet box, ensure that the electrical equipment in each cabinet box can be used in the same pressure environment, and balance the air pressure between each cabinet box through the ingenious design of the equalizing assembly. Each component cooperates with each other, the structure is stable, the sealing performance is good, the air pressure balance sensitivity is high, and the debugging and maintenance are convenient. It can effectively solve the problem of unbalanced air pressure of the existing gas-filled cabinet, improve the performance and safety of the gas-filled cabinet, and reduce the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure in the embodiment of the present application.

[0025] Figure 2 is a perspective view of the equalizing assembly in the embodiment of the present application.

[0026] Figure 3 is a perspective view of the device seat and the movable plug group in the embodiment of the present application. Figure 2 is a front view of the device shown in

[0027] Figure 4 is a perspective view of the equalizing shell in the embodiment of the present application.

[0028] Figure 5 is a front view of the device shown in Figure 4

[0029] Figure 6 is a perspective view of the equalizing shell in the embodiment of the present application.

[0030] BRIEF DESCRIPTION OF DRAWINGS: 1, cabinet box; 2, equalizing assembly; 201, positioning sliding block; 202, sealing block; 203, stable support rod; 204, horizontal sliding plate; 205, support spring; 21, device seat; 211, seat frame; 212, top plate; 213, positioning inner plate; 214, guide sliding rod; 215, threaded sleeve; 216, support screw; 22, equalizing shell; 221, main frame shell; 222, connecting pipe head; 23, movable plug group; 231, sealing part; 232, elastic support; 3, connecting pipe group. DETAILED DESCRIPTION

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] The embodiment of the present application discloses a gas-filled cabinet. Referring to Figure 1 , Figure 2 and Figure 3 ​As shown in the figure, an air charging cabinet comprises a plurality of cabinet boxes 1 and a pressure equalizing assembly 2 connected with the cabinet boxes 1, the pressure equalizing assembly 2 comprises an equipment seat 21, a pressure equalizing shell 22 and a movable plug group 23, the pressure equalizing shell 22 is installed in the equipment seat 21 and is fixedly connected with the equipment seat 21, a connecting pipe group 3 connected with the cabinet boxes 1 is installed on the pressure equalizing shell 22 and is sealingly fixedly connected with the pressure equalizing shell 22, the lower end surface of the movable plug group 23 is slidingly installed in the equipment seat 21 and the head of the movable plug group 23 extends into the pressure equalizing shell 22, and the movable plug group 23 is sealingly slidingly connected with the pressure equalizing shell 22. In use, the pressure equalizing assembly 2 is provided, and the connecting pipe group 3 is used to connect each cabinet box 1 with the pressure equalizing shell 22, so that the cabinet boxes 1 are communicated with each other through the pressure equalizing assembly 2 in use, and the pressure equalizing assembly 2 is designed to have the structure of the equipment seat 21, the pressure equalizing shell 22 and the movable plug group 23, so that the equipment seat 21 can be fixedly installed outside the cabinet boxes 1 in use, and the pressure equalizing shell 22 and the movable plug group 23 can be installed on the equipment seat 21 after the equipment seat 21 is fixed, and the movable plug group 23 can slide in the equipment seat 21 and the pressure equalizing shell 22 according to the change of the air pressure in the cabinet boxes 1 in use, so that the air pressure balance between the cabinet boxes 1 is realized, and the performance and safety of the air charging cabinet are improved.

[0033] Referring to Figure 3 , Figure 4 and Figure 5 As shown in the figure, the equipment seat 21 comprises a seat frame 211 and a top plate 212, the top plate 212 is symmetrically arranged at the head of the seat frame 211 and is fixedly connected with the seat frame 211. The equipment seat 21 adopts the structure of the seat frame 211 and the top plate 212, the top plate 212 is symmetrically arranged at the head of the seat frame 211 and is fixedly connected, which provides a stable installation basis for the pressure equalizing shell 22 and the movable plug group 23 and ensures the overall stability of the pressure equalizing assembly 2, and the pressure equalizing shell 22 and the movable plug group 23 are installed between the seat frame 211 and the top plate 212, and the upper end of the pressure equalizing shell 22 is fixed on the top plate 212, so that the pressure equalizing shell 22 and the movable plug group 23 can be stably installed and used on the equipment seat 21. The inner side surface of the seat frame 211 is symmetrically provided with positioning inner plates 213, the positioning inner plates 213 are integrally formed with the seat frame 211, and a guide sliding rod 214 for sliding installation of the movable plug group 23 is further arranged between the positioning inner plates 213 and the seat frame 211, and the two ends of the guide sliding rod 214 are fixedly connected with the positioning inner plates 213 and the seat frame 211. By fixedly installing two groups of positioning inner plates 213 on the inner side surface of the seat frame 211, the guide sliding rod 214 can be fixedly installed through the positioning inner plates 213, and the positioning inner plates 213 on the inner side surface of the seat frame 211 are integrally formed with the seat frame 211, which enhances the structural strength of the seat frame 211. The arrangement of the guide sliding rod 214 provides a guide function for the sliding of the movable plug group 23, so that the movable plug group 23 can slide stably and the accuracy of air pressure balance is ensured.

[0034] Referring to Figure 3 and Figure 6 As shown in the drawings, the equalizing shell 22 comprises a main frame shell 221 and a connecting pipe head 222, the connecting pipe head 222 is uniformly arranged on the upper end surface of the main frame shell 221, and the connecting pipe head 222 is sealingly and fixedly connected with the main frame shell 221. The structure of the main frame shell 221 and the connecting pipe head 222 of the equalizing shell 22 facilitates the uniform arrangement of the connecting pipe head 222 on the upper end surface of the main frame shell 221 and the sealing and fixed connection, facilitates the communication of the connecting pipe group 3 with each cabinet 1, and enables the gas to flow uniformly between the cabinet 1 and the equalizing shell 22, thereby improving the equalizing effect.

[0035] Referring to Figure 3 , Figure 4 and Figure 5 As shown in the drawings, the movable plug group 23 comprises a sealing part 231 and an elastic support 232, the sealing part 231 is installed in the main frame shell 221, and the sealing part 231 is sealingly and slidingly connected with the main frame shell 221, the elastic support 232 is slidingly installed on the guide slide rod 214, and the upper end of the elastic support 232 is supported on the lower end surface of the sealing part 231. By designing the movable plug group 23 as a structure in which the sealing part 231 and the elastic support 232 are matched, and by sealingly and slidingly connecting the sealing part 231 of the movable plug group 23 with the main frame shell 221, the sealing property in the equalizing shell 22 is ensured. The elastic support 232 is slidingly installed on the guide slide rod 214 and supports the sealing part 231, and can flexibly adjust the position of the sealing part 231 according to the change of the gas pressure, thereby realizing the gas pressure balance.

[0036] Referring to Figure 3 , Figure 4 and Figure 5As shown, the sealing part 231 comprises a positioning sliding block 201 and a sealing block 202, the upper end surface of the positioning sliding block 201 is fixedly installed with a stable supporting rod 203, and the sealing block 202 is fixedly installed on the upper end surface of the stable supporting rod 203. By designing the sealing part 231 as a structure matched by the positioning sliding block 201, the stable supporting rod 203 and the sealing block 202, the stability of the sealing block 202 is ensured by the stable supporting rod 203 in use, so that the sealing block 202 can better cooperate with the main frame shell 221 to achieve a good sealing effect. The elastic support 232 comprises a horizontal sliding plate 204 and a supporting spring 205, both ends of the horizontal sliding plate 204 are slidingly installed on the guide sliding rod 214, and the supporting spring 205 is fixedly installed between the horizontal sliding plate 204 and the positioning sliding block 201. The structure of the horizontal sliding plate 204 and the supporting spring 205 of the elastic support 232 can ensure that the stable supporting sealing part 231 is used in use, the horizontal sliding plate 204 slides on the guide sliding rod 214, and the supporting spring 205 provides elastic support, so that the movable plug group 23 can automatically adjust the position according to the change of air pressure, and the sensitivity of air pressure balance is improved. The bottom inner side of the seat frame 211 is integrally formed with a threaded sleeve 215, the threaded sleeve 215 is threadedly connected with a supporting screw 216, and the head of the supporting screw 216 is supported on the lower end surface of the horizontal sliding plate 204. The threaded sleeve 215 and the supporting screw 216 on the bottom of the seat frame 211 are structured, and the initial position of the horizontal sliding plate 204 can be adjusted by rotating the supporting screw 216, so as to adjust the initial state of the movable plug group 23, thereby facilitating the debugging and maintenance of the air pressure balance of the gas-filled cabinet.

[0037] The implementation principle of the gas-filled cabinet according to the embodiment of the application is as follows: in installation and use, the seat frame 211 is placed at a suitable position, the top plate 212 is symmetrically installed at the head of the seat frame 211 and fixedly connected, and the assembly of the equipment seat 21 is completed. The two ends of the guide sliding rod 214 are fixedly connected with the positioning inner plate 213 and the seat frame 211 respectively. The two ends of the horizontal sliding plate 204 are slidingly installed on the guide sliding rod 214, and the supporting spring 205 is installed between the horizontal sliding plate 204 and the positioning sliding block 201, and the installation of the elastic support 232 is completed. The positioning sliding block 201, the stable supporting rod 203 and the sealing block 202 are assembled into the sealing part 231, and the sealing part 231 is installed in the main frame shell 221, so that the sealing part 231 is sealingly and slidingly connected with the main frame shell 221. The equalizing shell 22 is installed in the equipment seat 21 and fixedly connected, so that the upper end of the elastic support 232 is supported on the lower end surface of the sealing part 231. The connecting pipe group 3 is installed on the connecting pipe head 222 and connected with each cabinet 1, and the connecting pipe group 3 is sealingly and fixedly connected with the equalizing shell 22. The supporting screw 216 is threadedly connected in the threaded sleeve 215, the position of the supporting screw 216 is adjusted, and the head of the supporting screw 216 is supported on the lower end surface of the horizontal sliding plate 204.

[0038] In actual use, when the air pressure in each cabinet 1 is unbalanced, the gas flows into or out of the equalizing shell 22 through the connecting pipe group 3. The change of air pressure will push the sealing part 231 of the movable plug group 23 to slide in the main frame shell 221, and the supporting spring 205 of the elastic support 232 will expand or contract according to the change of air pressure, so as to adjust the position of the sealing part 231, so that the air pressure in each cabinet 1 gradually reaches balance. By rotating the supporting screw 216, the initial position of the movable plug group 23 can be adjusted to adapt to different air pressure balance requirements.

[0039] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An air chamber comprising a number of groups of chamber boxes (1) and a pressure equalizing assembly (2) connected to the chamber boxes (1), characterized in that: The equalizing assembly (2) comprises an equipment seat (21), an equalizing shell (22) and a movable plug group (23), the equalizing shell (22) is installed in the equipment seat (21), and the equalizing shell (22) is fixedly connected with the equipment seat (21), a connecting pipe group (3) connected with the cabinet box (1) is installed on the equalizing shell (22), the connecting pipe group (3) is sealingly and fixedly connected with the equalizing shell (22), the lower end surface of the movable plug group (23) is slidingly installed in the equipment seat (21), and the head of the movable plug group (23) extends into the equalizing shell (22), and the movable plug group (23) is sealingly and slidingly connected with the equalizing shell (22).

2. An air-entrapment chamber according to claim 1, wherein: The equipment seat (21) comprises a seat frame (211) and a top plate (212), the top plate (212) is symmetrically arranged at the head of the seat frame (211), and the top plate (212) is fixedly connected with the seat frame (211).

3. An air-entrapment chamber according to claim 2, wherein: The inner side of the seat frame (211) is symmetrically provided with a positioning inner plate (213), the positioning inner plate (213) is integrally formed with the seat frame (211), and a guide sliding rod (214) for slidingly installing the movable plug group (23) is further arranged between the positioning inner plate (213) and the seat frame (211), and the two ends of the guide sliding rod (214) are fixedly connected with the positioning inner plate (213) and the seat frame (211) respectively.

4. An air-entrapment chamber as claimed in claim 3, characterised in that: The equalizing shell (22) comprises a main frame shell (221) and a connecting pipe head (222), the connecting pipe head (222) is uniformly arranged on the upper end surface of the main frame shell (221), and the connecting pipe head (222) is sealingly and fixedly connected with the main frame shell (221).

5. An air-entrapment chamber as claimed in claim 4, characterised in that: The movable plug group (23) comprises a sealing part (231) and an elastic support (232), the sealing part (231) is installed in the main frame shell (221), and the sealing part (231) is sealingly and slidingly connected with the main frame shell (221), and the elastic support (232) is slidingly installed on the guide sliding rod (214), and the upper end of the elastic support (232) is supported on the lower end surface of the sealing part (231).

6. An air-entrapment chamber as claimed in claim 5, characterised in that: The sealing part (231) comprises a positioning sliding block (201) and a sealing block (202), the upper end surface of the positioning sliding block (201) is fixedly provided with a stable supporting rod (203), and the sealing block (202) is fixedly installed on the upper end surface of the stable supporting rod (203).

7. An air-entrapment chamber as claimed in claim 6, characterised in that: The elastic support (232) comprises a horizontal sliding plate (204) and a supporting spring (205), the two ends of the horizontal sliding plate (204) are slidingly installed on the guide sliding rod (214), and the supporting spring (205) is fixedly installed between the horizontal sliding plate (204) and the positioning sliding block (201).

8. An air-entrapment chamber according to claim 7, characterised in that: The bottom surface of the seat frame (211) is integrally formed with a threaded sleeve (215), a supporting screw (216) is threadedly connected in the threaded sleeve (215), and the head of the supporting screw (216) is supported on the lower end surface of the horizontal sliding plate (204).

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