Gas-insulated switchgear

Abstract

The invention belongs to the technical field of high-voltage switch equipment, and particularly discloses an inflatable cabinet. According to the gas-insulated switchgear provided by the invention, the first operating mechanism and the second operating mechanism are both arranged at the front side of the circuit breaker chamber, the first operating mechanism and the second operating mechanism are convenient to operate, and the first operating mechanism and the second operating mechanism are arranged at the same side of the circuit breaker chamber, so that the size of the gas-insulated switchgear in the front-back direction is reduced; the first operating mechanism and the second operating mechanism are arranged along the height direction of the circuit breaker chamber, so that the size of the gas-insulated switchgear in the left-right direction is not increased, and the occupied space of the gas-insulated switchgear is further reduced; besides, each bus chamber is correspondingly provided with one operating mechanism, the two operating mechanisms control the corresponding bus chambers respectively, and the two operating mechanisms are completely independent and do not influence each other, so that maintenance is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage switchgear, and in particular to an inflatable cabinet. Background Art

[0002] The gas-filled cabinet is a device that seals the main busbar, sealed poles, three-position switch and other equipment in a gas box filled with insulating gas to ensure the insulation performance of the switchgear. The double-busbar gas-filled cabinet can significantly improve the reliability of the power supply and distribution lines. The double-busbar gas-filled cabinet has a circuit breaker chamber and two busbar chambers. The two busbar chambers are arranged in sequence along the front and back directions of the circuit breaker chamber and are placed on the top of the circuit breaker chamber. A three-position switch is provided in the busbar chamber, and each busbar chamber is respectively provided with a three-position operating mechanism. The three-position operating mechanism controls the three-position switch to be in the open position, grounding position or closed position. In the prior art, one of the three-position operating mechanisms is provided at the rear side of the circuit breaker chamber, and the other three-position operating mechanism is provided at the front side of the circuit breaker chamber to facilitate the connection between the three-position operating mechanism and the corresponding busbar chamber. However, the three-position operating mechanism placed at the rear side of the circuit breaker chamber is not convenient to operate. Summary of the Invention

[0003] The purpose of the present invention is to provide an inflatable cabinet that facilitates the operation of two operating mechanisms, reduces the size of the inflatable cabinet in the front-to-back direction, and does not increase the size of the inflatable cabinet in the left-to-right direction, thereby reducing the space occupied by the inflatable cabinet.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] An inflatable cabinet includes a circuit breaker chamber, a first busbar chamber, a second busbar chamber, a first operating mechanism, and a second operating mechanism. The first busbar chamber is provided with a first disconnector, and the second busbar chamber is provided with a second disconnector. The first busbar chamber and the second busbar chamber are arranged at the top of the circuit breaker chamber along the front-to-back direction of the circuit breaker chamber. The first operating mechanism and the second operating mechanism are both provided at the front side of the circuit breaker chamber. The first operating mechanism and the second operating mechanism are arranged along the height direction of the circuit breaker chamber. The first operating mechanism actuates the first disconnector via a first transmission mechanism, and the second operating mechanism actuates the second disconnector via a second transmission mechanism.

[0006] As an optional technical solution of the above-mentioned inflatable cabinet, the second transmission mechanism includes a first transmission wheel group, a transmission rod and a second transmission wheel group. The first transmission wheel group is arranged on the front side of the circuit breaker chamber, and the first transmission wheel group and the first transmission mechanism are arranged in the same plane. The second transmission wheel group is arranged on the rear side of the circuit breaker chamber. One end of the first transmission wheel group is connected to the second operating mechanism, the other end of the first transmission wheel group is connected to one end of the transmission rod, one end of the second transmission wheel group is connected to the other end of the transmission rod, and the other end of the second transmission wheel group is connected to the second disconnector. The second operating mechanism activates the second disconnector through the sequential transmission of the first transmission wheel group, the transmission rod and the second transmission wheel group.

[0007] As an optional technical solution for the above-mentioned inflatable cabinet, there are multiple transmission rods, one end of each transmission rod is connected to the other end of the first transmission wheel group, and the other end of each transmission rod is connected to one end of the second transmission wheel group.

[0008] As an optional technical solution for the above-mentioned inflatable cabinet, one end of the transmission rod is provided with a first plug, and the other end of the transmission rod is provided with a second plug, the outer diameter of the first plug is not larger than the outer diameter of the transmission rod, and the outer diameter of the second plug is not smaller than the outer diameter of the transmission rod, a first fixing seat is provided on the front side of the circuit breaker chamber, and a second fixing seat is provided on the rear side of the circuit breaker chamber, the first plug passes through the second fixing seat and the first fixing seat in sequence, and the transmission rod is rotatably connected to the first fixing seat and the second fixing seat respectively, the first plug is connected to the other end of the first transmission wheel group, and the second plug is connected to one end of the second transmission wheel group.

[0009] As an optional technical solution for the above-mentioned inflatable cabinet, the bottom of the first busbar chamber and the bottom of the second busbar chamber are respectively spaced apart from the top of the circuit breaker chamber to form a penetration space, and the other end of the transmission rod is penetrated through the penetration space and connected to one end of the second transmission wheel group.

[0010] As an optional technical solution for the above-mentioned inflatable cabinet, at least one fixing member is provided on the top of the circuit breaker chamber, the transmission rod is rotatably connected to the fixing member, and the bottom of the first busbar chamber and / or the bottom of the second busbar chamber is recessed with a receiving groove for accommodating the fixing member.

[0011] As an optional technical solution for the above-mentioned inflatable cabinet, a first groove is recessed on the front side of the first busbar chamber, one side of the first groove passes through the bottom of the first busbar chamber, the bottom of the first groove is flush with the front panel of the circuit breaker chamber, and the length of the transmission rod protruding from the front panel of the circuit breaker chamber is less than the depth of the first groove.

[0012] As an optional technical solution of the above-mentioned inflatable cabinet, a second groove is recessed on the rear side of the second busbar chamber, and one side of the second groove passes through the bottom of the second busbar chamber. A third groove is recessed on the rear side of the circuit breaker chamber, and one side of the third groove passes through the top of the circuit breaker chamber, and the third groove is connected to the second groove, and the bottom of the third groove is flush with the bottom of the second groove. The length of the transmission rod protruding from the rear panel of the circuit breaker chamber is less than the depth of the second groove.

[0013] As an optional technical solution of the above-mentioned inflatable cabinet, the first isolating switch is a three-position isolating switch, the second isolating switch is a two-position isolating switch, and the length of the second isolating switch is shorter than the length of the first isolating switch;

[0014] Alternatively, the first isolating switch and the second isolating switch are both three-position isolating switches.

[0015] As an optional technical solution of the above-mentioned inflatable cabinet, the first transmission wheel assembly includes a first transmission driving wheel and a first transmission driven wheel, the first transmission driving wheel is connected to the second operating mechanism, the first transmission driven wheel is connected to one end of the transmission rod, and the first transmission driving wheel and the first transmission driven wheel are connected by a first transmission member;

[0016] The second transmission wheel assembly includes a second transmission driven wheel and a first driven wheel assembly, the second transmission driven wheel is connected to the other end of the transmission rod, the second transmission driven wheel is connected to one end of the first driven wheel assembly via a second transmission member, and the other end of the first driven wheel assembly is connected to the second isolating switch;

[0017] The second operating mechanism activates the second isolating switch in sequence through the first transmission driving wheel, the first transmission driven wheel, the transmission rod, the second transmission driven wheel and the first driven wheel assembly.

[0018] Beneficial effects of the present invention:

[0019] The inflatable cabinet provided by the present invention has a first busbar chamber and a second busbar chamber arranged on the top of the circuit breaker chamber, and the first busbar chamber and the second busbar chamber are arranged along the front-to-back direction of the circuit breaker chamber, the first operating mechanism is connected to the first isolating switch through the first transmission mechanism, and the second operating mechanism is connected to the second isolating switch through the second transmission mechanism, and the first operating mechanism and the second operating mechanism are both arranged on the front side of the circuit breaker chamber, which is convenient for operating the first operating mechanism and the second operating mechanism. The first operating mechanism and the second operating mechanism are arranged on the same side of the circuit breaker chamber, which reduces the size of the inflatable cabinet in the front-to-back direction, and the first operating mechanism and the second operating mechanism are arranged along the height direction of the circuit breaker chamber, without increasing the size of the inflatable cabinet in the left-to-right direction, thereby reducing the occupied space of the inflatable cabinet; in addition, an operating mechanism is respectively arranged for each busbar chamber, and the two operating mechanisms respectively control the busbar chamber corresponding thereto. The two operating mechanisms are completely independent of each other and do not affect each other, which is convenient for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an axonometric view of an inflatable cabinet provided by an embodiment of the present invention;

[0021] Figure 2 1 is a schematic structural diagram of a first transmission mechanism, a second transmission mechanism, a first isolating switch, and a second isolating switch provided in an embodiment of the present invention;

[0022] Figure 3 2 is a schematic diagram of the structure of the first busbar chamber and the second busbar chamber provided in an embodiment of the present invention;

[0023] Figure 4 is a structural schematic diagram of a first transmission mechanism provided by an embodiment of the present invention;

[0024] Figure 5 1 is a schematic structural diagram of a first transmission mechanism and a second transmission mechanism provided by an embodiment of the present invention;

[0025] Figure 6 is a front structural schematic diagram of a second transmission mechanism provided by an embodiment of the present invention;

[0026] Figure 7 is a structural schematic diagram of the back side of the second transmission mechanism provided by an embodiment of the present invention;

[0027] Figure 8 1 is a schematic structural diagram of a transmission rod provided by an embodiment of the present invention;

[0028] Figure 9 is a schematic structural diagram of a transmission rod arrangement provided by an embodiment of the present invention;

[0029] Figure 10 Schematic diagram of the external structures of the first busbar chamber and the second busbar chamber provided by an embodiment of the present invention.

[0030] In the picture:

[0031] 1. Circuit breaker compartment; 2. First busbar compartment; 3. Second busbar compartment; 4. First operating mechanism; 5. Second operating mechanism; 6. First transmission mechanism; 7. Second transmission mechanism; 8. Accommodation slot; 9. Mounting bracket;

[0032] 11. First fixing seat; 12. Second fixing seat; 13. Fixing piece; 14. Third slot; 15. Support rib;

[0033] 21. First isolating switch; 22. First slot;

[0034] 31. Second isolating switch; 32. Second slot;

[0035] 61, second transmission driving wheel; 62, second driven wheel group; 621, first driven wheel; 622, fourth driven wheel; 623, fifth driven wheel; 63, third transmission member; 64, fourth transmission member; 65, fifth transmission member;

[0036] 71. First transmission wheel group; 711. First transmission driving wheel; 712. First transmission driven wheel; 713. First transmission member; 72. Transmission rod; 721. First plug; 722. Second plug; 73. Second transmission wheel group; 731. Second transmission driven wheel; 732. First driven wheel assembly; 7321. Sixth driven wheel; 7322. Ninth driven wheel; 7323. Tenth driven wheel; 733. Second transmission member; 734. Sixth transmission member; 735. Seventh transmission member. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0038] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0039] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0040] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0041] like Figures 1 to 3 As shown, this embodiment provides an inflatable cabinet, which includes a circuit breaker chamber 1, a first busbar chamber 2, a second busbar chamber 3, a first operating mechanism 4, and a second operating mechanism 5. A first disconnector 21 is provided in the first busbar chamber 2, and a second disconnector 31 is provided in the second busbar chamber 3. The first busbar chamber 2 and the second busbar chamber 3 are arranged at the top of the circuit breaker chamber 1 along the front-to-back direction of the circuit breaker chamber 1. The first operating mechanism 4 and the second operating mechanism 5 are both arranged at the front side of the circuit breaker chamber 1. The first operating mechanism 4 and the second three-position operating mechanism 5 are arranged along the height direction of the circuit breaker chamber 1. The first operating mechanism 4 activates the first disconnector 21 via a first transmission mechanism 6, and the second operating mechanism 5 activates the second disconnector 31 via a second transmission mechanism 7.

[0042] The first busbar chamber 2 and the second busbar chamber 3 are arranged at the top of the circuit breaker chamber 1, and the first busbar chamber 2 and the second busbar chamber 3 are arranged along the front-to-back direction of the circuit breaker chamber 1. The first operating mechanism 4 is connected to the first disconnector 21 through the first transmission mechanism 6, and the second operating mechanism 5 is connected to the second disconnector 31 through the second transmission mechanism 7. The first operating mechanism 4 and the second operating mechanism 5 are both arranged on the front side of the circuit breaker chamber 1, which is convenient for operating the first operating mechanism 4 and the second operating mechanism 5. The first operating mechanism 4 and the second operating mechanism 5 are arranged on the same side of the circuit breaker chamber 1, which reduces the size of the inflatable cabinet in the front-to-back direction. The first operating mechanism 4 and the second operating mechanism 5 are arranged along the height direction of the circuit breaker chamber 1, without increasing the size of the inflatable cabinet in the left-to-right direction, thereby reducing the space occupied by the inflatable cabinet; in addition, each busbar chamber is respectively provided with an operating mechanism, and the two operating mechanisms respectively control the corresponding busbar chamber. The two operating mechanisms are completely independent and do not affect each other, which is convenient for maintenance.

[0043] In some embodiments, the first isolating switch 21 and the second isolating switch 31 are arranged at the top of the circuit breaker chamber 1, and the first isolating switch 21 is arranged close to the front side of the circuit breaker chamber 1, and the second isolating switch 31 is arranged close to the rear side of the circuit breaker chamber 1. In order to improve the transmission stability of the first transmission mechanism 6 and ensure the stability of the first operating mechanism 4 controlling the action of the first isolating switch 21, the first busbar chamber 2 is arranged close to the first operating mechanism 4, and the first operating mechanism 4 is arranged above the second operating mechanism 5 along the height direction of the circuit breaker chamber 1 to shorten the transmission distance of the first transmission mechanism 6. The first operating mechanism 4 is connected to the front panel of the first busbar chamber 2 so that the first operating mechanism 4 is arranged close to the first isolating switch 21, and the second operating mechanism 5 is connected to the front panel of the circuit breaker chamber 1. The second transmission mechanism 7 is arranged below the first transmission mechanism 6. The first transmission mechanism 6 and the second transmission mechanism 7 will not interfere with each other in layout, which simplifies the structure of the first transmission mechanism 6 and the second transmission mechanism 7, making the transmission of the first transmission mechanism 6 and the second transmission mechanism 7 more stable. Optionally, a mounting bracket 9 is provided on the housing of the first operating mechanism 4, one end of which is fixedly connected to the housing of the first operating mechanism 4, and the other end of which is fixedly connected to the front panel of the first busbar chamber 2. A mounting bracket 9 is provided on the housing of the second operating mechanism 5, one end of which is fixedly connected to the housing of the second operating mechanism 5, and the other end of which is fixedly connected to the front panel of the housing of the circuit breaker chamber 1.

[0044] The first isolating switches 21 extend along the front-to-back direction of the circuit breaker chamber 1. Three first isolating switches 21 are usually provided and are sequentially arranged along the left-to-right direction of the circuit breaker chamber 1. Figure 4As shown, the first transmission mechanism 6 includes a second transmission driving wheel 61 and a second driven wheel group 62. The second transmission driving wheel 61 is connected to the first operating mechanism 4. One end of the second driven wheel group 62 is connected to the second transmission driving wheel 61 through a third transmission member 63. The other end of the second driven wheel group 62 is connected to the first isolating switch 21. The first operating mechanism 4 activates the first isolating switch 21 through the second transmission driving wheel 61 and the second driven wheel group 62.

[0045] Three first isolating switches 21 are provided, and the second driven wheel group 62 includes a first driven wheel 621, a second driven wheel, a third driven wheel, a fourth driven wheel 622 and a fifth driven wheel 623. The first driven wheel 621, the second driven wheel and the third driven wheel are all connected to the first isolating switch 21 placed in the middle, and the first driven wheel 621, the second driven wheel and the third driven wheel are coaxially arranged. The fourth driven wheel 622 is connected to a first isolating switch 21 placed on the outside, and the fifth driven wheel 623 is connected to another first isolating switch 21 placed on the outside. The first driven wheel 621 is connected to the second transmission driving wheel 61 through the third transmission member 63, the second driven wheel is connected to the fourth driven wheel 622 through the fourth transmission member 64, and the third driven wheel is connected to the fifth driven wheel 623 through the fifth transmission member 65. The second transmission driving wheel 61 rotates, driving the first driven wheel 621 via the third transmission member 63. The second and third driven wheels rotate simultaneously. The second driven wheel rotates, driving the fourth driven wheel 622 via the fourth transmission member 64. The third driven wheel rotates, driving the fifth driven wheel 623 via the fifth transmission member 65, thereby actuating the three first disconnectors 21. Optionally, the axis of the second transmission driving wheel 61 is aligned with the axis of the first driven wheel 621 along the height of the circuit breaker chamber 1 to reduce the transmission distance between the second transmission driving wheel 61 and the second driven wheel assembly 62, thereby improving the transmission stability of the first transmission mechanism 6. Because the three first disconnectors 21 are arranged flush, the spacing between the second driven wheel and the fourth driven wheel 622, as well as the spacing between the third driven wheel and the fifth driven wheel 623, is minimized, thereby reducing the transmission distance of the second driven wheel assembly 62 and improving the transmission stability of the first transmission mechanism 6.

[0046] The second transmission driving wheel 61, the first driven wheel 621, the second driven wheel, the third driven wheel, the fourth driven wheel 622, and the fifth driven wheel 623 are all sprockets, and the third transmission member 63, the fourth transmission member 64, and the fifth transmission member 65 are chains. Alternatively, the second transmission driving wheel 61, the first driven wheel 621, the second driven wheel, the third driven wheel, the fourth driven wheel 622, and the fifth driven wheel 623 are all synchronous pulleys, and the third transmission member 63, the fourth transmission member 64, and the fifth transmission member 65 are synchronous belts.

[0047] In some embodiments, as Figures 5 to 7As shown, the second transmission mechanism 7 includes a first transmission wheel set 71, a transmission rod 72, and a second transmission wheel set 73. The first transmission wheel set 71 is arranged at the front side of the circuit breaker chamber 1 and is arranged in the same plane as the first transmission mechanism 6. This ensures the coordination of the layout of the first operating mechanism 4 and the second operating mechanism 5, and can reduce the size of the inflatable cabinet in the front-to-back direction of the circuit breaker chamber 1. The second transmission wheel set 73 is arranged at the rear side of the circuit breaker chamber 1. One end of the first transmission wheel set 71 is connected to the second operating mechanism 5, the other end of the first transmission wheel set 71 is connected to one end of the transmission rod 72, one end of the second transmission wheel set 73 is connected to the other end of the transmission rod 72, and the other end of the second transmission wheel set 73 is connected to the second disconnector 31. The second operating mechanism 5 activates the second disconnector 31 through the sequential transmission of the first transmission wheel set 71, the transmission rod 72, and the second transmission wheel set 73. The second transmission mechanism 7 has a simple structure, with a transmission rod 72 extending in the front-to-back direction of the circuit breaker chamber 1. Due to its simple structure, the transmission rod 72 does not take up space and is unlikely to interfere with related structures in the circuit breaker chamber 1 or the busbar chamber. One end of the first transmission wheel assembly 71 and the other end of the first transmission wheel assembly 71 are arranged along the height of the circuit breaker chamber 1, with one end of the first transmission wheel assembly 71 positioned below and the other end of the first transmission wheel assembly 71 positioned above. One end of the second transmission wheel assembly 73 and the other end of the second transmission wheel assembly 73 are arranged along the height of the circuit breaker chamber 1, with one end of the second transmission wheel assembly 73 positioned below and the other end of the second transmission wheel assembly 73 positioned above. The first transmission wheel group 71 is arranged below the first transmission mechanism 6 along the height direction of the circuit breaker chamber 1. According to the structure of the second transmission mechanism 7, the transmission rod 72 and the second transmission wheel group 73 are both arranged below the first transmission mechanism 6 along the height direction of the circuit breaker chamber 1, so that the second transmission mechanism 7 and the first transmission mechanism 6 do not interfere with each other in layout, simplifying the structure of the first transmission mechanism 6 and the second transmission mechanism 7, and making the transmission of the first transmission mechanism 6 and the second transmission mechanism 7 more stable.

[0048] Optionally, combined Figure 3 and Figure 5 As shown, the bottom of the first busbar chamber 2 and the bottom of the second busbar chamber 3 are spaced from the top of the circuit breaker chamber 1, forming a through-space. The other end of the transmission rod 72 passes through the through-space and connects to one end of the second transmission wheel assembly 73. The transmission rod 72 does not occupy space within the circuit breaker chamber 1 or the busbar chamber, and does not affect the layout of the components within the circuit breaker chamber 1 or the busbar chamber. The diameter of the transmission rod 72 is set according to the size of the through-space and is not specifically limited here.

[0049] Support ribs 15 are provided on opposite sides of the top of the circuit breaker chamber 1 along the left-right direction of the circuit breaker chamber 1. The support ribs 15 extend along the front-to-back direction of the circuit breaker chamber 1. The bottom of the first busbar chamber 2 and the bottom of the second busbar chamber 3 are respectively connected to the support ribs 15, thereby forming a through space between the bottom of the first busbar chamber 2 and the bottom of the second busbar chamber 3 and the top of the circuit breaker chamber 1.

[0050] like Figure 7 and Figure 8 As shown, both ends of the transmission rod 72 are rotatably connected to the top of the circuit breaker chamber 1. Optionally, one end of the transmission rod 72 is provided with a first plug 721, and the other end of the transmission rod 72 is provided with a second plug 722. The outer diameter of the first plug 721 is no larger than the outer diameter of the transmission rod 72, and the outer diameter of the second plug 722 is no smaller than the outer diameter of the transmission rod 72. A first fixing seat 11 is provided on the front side of the circuit breaker chamber 1, and a second fixing seat 12 is provided on the rear side of the circuit breaker chamber 1. The first plug 721 passes through the second fixing seat 12 and the first fixing seat 11 in sequence. The second plug 722 is stopped by the second fixing seat 12, thereby positioning the transmission rod 72 in the axial direction of the transmission rod 72. The transmission rod 72 is rotatably connected to the first fixing seat 11 and the second fixing seat 12, respectively. The first fixing seat 11 and the second fixing seat 12 provide support for the transmission rod 72. The first plug 721 is connected to the other end of the first transmission wheel assembly 71, and the second plug 722 is connected to one end of the second transmission wheel assembly 73.

[0051] A rotating bearing is provided on the first fixed seat 11 and the second fixed seat 12 respectively. The outer ring of the rotating bearing is connected to the first fixed seat 11 or the second fixed seat 12. The inner ring of the rotating bearing can allow the first plug 721 to pass through. The transmission rod 72 is fixedly connected to the inner ring of the rotating bearing.

[0052] Combine Figure 6 and Figure 9 As shown, to ensure the stability of the transmission of the transmission rod 72, at least one fixing member 13 is provided at the top of the circuit breaker chamber 1. The transmission rod 72 is rotatably connected to the fixing member 13 and cooperates with the first fixing seat 11 and the second fixing seat 12 to achieve multi-point positioning of the transmission rod 72. The bottom of the first busbar chamber 2 and / or the bottom of the second busbar chamber 3 is recessed with a receiving groove 8 for accommodating the fixing member 13 to facilitate the placement and installation of the fixing member 13. The number of fixing members 13 is set according to the length of the transmission rod 72 to improve the stability of the transmission of the transmission rod 72. For example, a fixing member 13 is provided at the top of the circuit breaker chamber 1, and the middle portion of the transmission rod 72 is rotatably connected to the fixing member 13. The fixing member 13, the first fixing seat 11, and the second fixing seat 12 cooperate to achieve three-point positioning of the transmission rod 72. The position of the receiving groove 8 is determined by the position of the fixing member 13, which is not specifically limited here.

[0053] Optionally, the fixing member 13 includes an inverted, U-shaped fixing bracket, with both ends of the fixing bracket connected to the top of the circuit breaker chamber 1. The transmission rod 72 passes through two opposite walls of the fixing bracket and is rotatably connected to the two side walls of the fixing bracket. The fixing member 13 may also have other structures, which are not described in detail here.

[0054] There are multiple transmission rods 72, one end of each transmission rod 72 is connected to the other end of the first transmission wheel set 71, and the other end of each transmission rod 72 is connected to one end of the second transmission wheel set 73. Providing multiple transmission rods 72 can reduce the transmission torque of each transmission rod 72, thereby reducing the strength requirements of the transmission rods 72.

[0055] In some embodiments, continue to refer to Figure 5 、 Figure 6 、 Figure 7 and Figure 9 As shown, the first transmission wheel assembly 71 includes a first transmission driving wheel 711 and a first transmission driven wheel 712. The first transmission driving wheel 711 is connected to the second operating mechanism 5, and the first transmission driven wheel 712 is connected to one end of the transmission rod 72. The first transmission driving wheel 711 and the first transmission driven wheel 712 are connected via a first transmission member 713. The second transmission wheel assembly 73 includes a second transmission driven wheel 731 and a first driven wheel assembly 732. The second transmission driven wheel 731 is connected to the other end of the transmission rod 72, and the second transmission driven wheel 731 is connected to one end of the first driven wheel assembly 732 via a second transmission member 733. The other end of the first driven wheel assembly 732 is connected to the second isolating switch 31. The second operating mechanism 5 sequentially transmits force to the second isolating switch 31 through the first transmission driving wheel 711, the first transmission driven wheel 712, the transmission rod 72, the second transmission driven wheel 731, and the first driven wheel assembly 732, thereby achieving stable force transmission to drive the second isolating switch 31. The structure is simple and easy to implement.

[0056] The number of first transmission driven wheels 712 corresponds to the number of transmission rods 72, that is, each transmission rod 72 is provided with a corresponding first transmission driven wheel 712, and the multiple first transmission driven wheels 712 are connected to the first transmission driving wheel 711 via a first transmission member 713. To facilitate the arrangement of the first operating mechanism 4 and the second operating mechanism 5, the rotation axis of the first transmission driving wheel 711 and the rotation axis of the second transmission driving wheel 61 are aligned along the height direction of the circuit breaker chamber 1.

[0057] The number of the second transmission driven wheels 731 corresponds to the number of the transmission rods 72 , that is, each transmission rod 72 is correspondingly provided with a second transmission driven wheel 731 . The second isolating switch 31 is provided with three components. The first driven wheel assembly 732 includes a sixth driven wheel 7321, a seventh driven wheel, an eighth driven wheel, a ninth driven wheel 7322, and a tenth driven wheel 7323. The sixth, seventh, and eighth driven wheels are all connected to the second isolating switch 31 located in the middle and are coaxially arranged. The ninth driven wheel 7322 is connected to one of the second isolating switches 31 located on the outside, and the tenth driven wheel 7323 is connected to the other second isolating switch 31 located on the outside. The sixth driven wheel 7321 is connected to the second transmission driven wheel 731 via a second transmission member 733, the seventh driven wheel is connected to the ninth driven wheel 7322 via a sixth transmission member 734, and the eighth driven wheel is connected to the tenth driven wheel 7323 via a seventh transmission member 735. The rotation of the first transmission driving wheel 711 drives the first transmission driven wheel 712 to rotate, thereby driving the transmission rod 72 to rotate. The rotation of the transmission rod 72 drives the second transmission driven wheel 731, which in turn drives the sixth driven wheel 7321. The seventh and eighth driven wheels rotate simultaneously. The seventh driven wheel drives the ninth driven wheel 7322, which in turn drives the tenth driven wheel 7323, thereby actuating the three second isolating switches 31. Because the three second isolating switches 31 are arranged flush, the spacing between the seventh and ninth driven wheels 7322, as well as the spacing between the eighth and tenth driven wheels 7323, is minimized. This reduces the transmission distance of the second transmission wheel assembly 73 and improves the transmission stability of the second transmission mechanism 7.

[0058] The first transmission driving wheel 711, the first transmission driven wheel 712, the second transmission driven wheel 731, the sixth driven wheel 7321, the seventh driven wheel, the eighth driven wheel, the ninth driven wheel 7322, and the tenth driven wheel 7323 are all sprockets, and the first transmission member 713, the second transmission member 733, the sixth transmission member 734, and the seventh transmission member 735 are chains. Alternatively, the first transmission driving wheel 711, the first transmission driven wheel 712, the second transmission driven wheel 731, the sixth driven wheel 7321, the seventh driven wheel, the eighth driven wheel, the ninth driven wheel 7322, and the tenth driven wheel 7323 are all synchronous pulleys, and the first transmission member 713, the second transmission member 733, the sixth transmission member 734, and the seventh transmission member 735 are synchronous belts.

[0059] In some embodiments, as Figure 10As shown, a first groove 22 is recessed on the front side of the first busbar chamber 2. One side of the first groove 22 passes through the bottom of the first busbar chamber 2. The bottom of the first groove 22 is flush with the front panel of the circuit breaker chamber 1. The length of the transmission rod 72 protruding from the front panel of the circuit breaker chamber 1 is less than the depth of the first groove 22, which reduces the length of the transmission rod 72, thereby reducing the transmission distance of the second transmission mechanism 7 and improving the transmission stability of the second transmission mechanism 7.

[0060] Continue to refer to Figure 10 As shown, a second slot 32 is recessed on the rear side of the second busbar chamber 3, one side of the second slot 32 extending through the bottom of the second busbar chamber 3. A third slot 14 is recessed on the rear side of the circuit breaker chamber 1, one side of the third slot 14 extending through the top of the circuit breaker chamber 1. The third slot 14 is connected to the second slot 32, and the bottom of the third slot 14 is flush with the bottom of the second slot 32. The length of the transmission rod 72 protruding from the rear panel of the circuit breaker chamber 1 is less than the depth of the second slot 32, which reduces the length of the transmission rod 72 and, in turn, the transmission distance of the second transmission mechanism 7, thereby improving the transmission stability of the second transmission mechanism 7. It should be explained that since the transmission rod 72 is disposed between the bottoms of the two busbar chambers and the top of the circuit breaker chamber 1, the portion of the transmission rod 72 protruding from the rear panel of the circuit breaker chamber 1 is located within the space formed by the second slot 32 and the third slot 14. Optionally, the portion of the rear side of the second busbar chamber 3 where the second groove 32 is not recessed is flush with the portion of the rear side of the circuit breaker chamber 1 where the third groove 14 is not recessed, without increasing the size of the inflatable cabinet in the front-to-back direction of the circuit breaker chamber 1.

[0061] In some embodiments, see Figure 9 As shown, the first isolator 21 is a three-position isolator, and the second isolator 31 is a two-position isolator. The length of the second isolator 31 is shorter than that of the first isolator 21. The three-position isolator has a closed position, an open position, and a grounded position, while the two-position isolator has a closed position and an open position. Due to the different functions of the two types of isolators, the structures of the two types of isolators are also different. The structure of the two-position isolator is simpler than that of the three-position isolator. Therefore, the length of the two-position isolator is shorter than that of the three-position isolator, which allows the depth of the second slot 32 to be increased, thereby reducing the length of the transmission rod 72.

[0062] In some other embodiments, see Figure 3 As shown, the first isolating switch 21 and the second isolating switch 31 are both three-position isolating switches and can be set according to the actual needs of the user.

[0063] The other structures of the first busbar chamber 2, the second busbar chamber 3 and the circuit breaker chamber 1 are all existing technologies and will not be described in detail here.

[0064] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An inflatable cabinet, characterized in that: The invention comprises a circuit breaker chamber (1), a first busbar chamber (2), a second busbar chamber (3), a first operating mechanism (4) and a second operating mechanism (5); a first isolating switch (21) is provided in the first busbar chamber (2), a second isolating switch (31) is provided in the second busbar chamber (3); the first busbar chamber (2) and the second busbar chamber (3) are arranged on the top of the circuit breaker chamber (1) along the front-to-back direction of the circuit breaker chamber (1); the first operating mechanism (4) and the second operating mechanism (5) are both arranged on the front side of the circuit breaker chamber (1); the first operating mechanism (4) and the second operating mechanism (5) are arranged along the height direction of the circuit breaker chamber (1); the first operating mechanism (4) actuates the first isolating switch (21) through a first transmission mechanism (6); and the second operating mechanism (5) actuates the second isolating switch (31) through a second transmission mechanism (7).

2. The inflatable cabinet according to claim 1, characterized in that: The second transmission mechanism (7) comprises a first transmission wheel group (71), a transmission rod (72) and a second transmission wheel group (73); the first transmission wheel group (71) is arranged at the front side of the circuit breaker chamber (1), and the first transmission wheel group (71) and the first transmission mechanism (6) are arranged in the same plane; the second transmission wheel group (73) is arranged at the rear side of the circuit breaker chamber (1); one end of the first transmission wheel group (71) is connected to the second operating mechanism (5); the other end of the first transmission wheel group (71) is connected to one end of the transmission rod (72); one end of the second transmission wheel group (73) is connected to the other end of the transmission rod (72); the other end of the second transmission wheel group (73) is connected to the second disconnector (31); the second operating mechanism (5) operates the second disconnector (31) through the sequential transmission of the first transmission wheel group (71), the transmission rod (72) and the second transmission wheel group (73).

3. The inflatable cabinet according to claim 2, characterized in that: There are multiple transmission rods (72), one end of each transmission rod (72) is respectively connected to the other end of the first transmission wheel set (71), and the other end of each transmission rod (72) is respectively connected to one end of the second transmission wheel set (73).

4. The inflatable cabinet according to claim 2, characterized in that: One end of the transmission rod (72) is provided with a first plug (721), and the other end of the transmission rod (72) is provided with a second plug (722). The outer diameter of the first plug (721) is not larger than the outer diameter of the transmission rod (72), and the outer diameter of the second plug (722) is not smaller than the outer diameter of the transmission rod (72). A first fixing seat (11) is provided on the front side of the circuit breaker chamber (1), and a second fixing seat (12) is provided on the rear side of the circuit breaker chamber (1). The first plug (721) passes through the second fixing seat (12) and the first fixing seat (11) in sequence, and the transmission rod (72) is rotatably connected to the first fixing seat (11) and the second fixing seat (12) respectively. The first plug (721) is connected to the other end of the first transmission wheel group (71), and the second plug (722) is connected to one end of the second transmission wheel group (73).

5. The inflatable cabinet according to claim 2, characterized in that: The bottom of the first busbar chamber (2) and the bottom of the second busbar chamber (3) are respectively spaced from the top of the circuit breaker chamber (1) to form a penetration space, and the other end of the transmission rod (72) is penetrated through the penetration space and connected to one end of the second transmission wheel set (73).

6. The inflatable cabinet according to claim 5, characterized in that: At least one fixing member (13) is provided on the top of the circuit breaker chamber (1), the transmission rod (72) is rotatably connected to the fixing member (13), and a receiving groove (8) for receiving the fixing member (13) is recessed on the bottom of the first busbar chamber (2) and / or the bottom of the second busbar chamber (3).

7. The inflatable cabinet according to claim 2, characterized in that: A first groove (22) is recessed on the front side of the first busbar chamber (2), one side of the first groove (22) passes through the bottom of the first busbar chamber (2), the bottom of the first groove (22) is flush with the front panel of the circuit breaker chamber (1), and the length of the transmission rod (72) protruding from the front panel of the circuit breaker chamber (1) is less than the depth of the first groove (22).

8. The inflatable cabinet according to claim 2 or 7, characterized in that: A second groove (32) is recessed on the rear side of the second busbar chamber (3), one side of the second groove (32) passes through the bottom of the second busbar chamber (3), a third groove (14) is recessed on the rear side of the circuit breaker chamber (1), one side of the third groove (14) passes through the top of the circuit breaker chamber (1), and the third groove (14) is connected to the second groove (32), the bottom of the third groove (14) is flush with the bottom of the second groove (32), and the length of the transmission rod (72) protruding from the rear panel of the circuit breaker chamber (1) is less than the depth of the second groove (32).

9. The inflatable cabinet according to claim 8, characterized in that: The first isolating switch (21) is a three-position isolating switch, the second isolating switch (31) is a two-position isolating switch, and the length of the second isolating switch (31) is shorter than the length of the first isolating switch (21); Alternatively, the first isolating switch (21) and the second isolating switch (31) are both three-position isolating switches.

10. The inflatable cabinet according to claim 2, characterized in that: The first transmission wheel assembly (71) includes a first transmission driving wheel (711) and a first transmission driven wheel (712), the first transmission driving wheel (711) is connected to the second operating mechanism (5), the first transmission driven wheel (712) is connected to one end of the transmission rod (72), and the first transmission driving wheel (711) and the first transmission driven wheel (712) are connected via a first transmission member (713); The second transmission wheel assembly (73) includes a second transmission driven wheel (731) and a first driven wheel assembly (732); the second transmission driven wheel (731) is connected to the other end of the transmission rod (72); the second transmission driven wheel (731) is connected to one end of the first driven wheel assembly (732) via a second transmission member (733); and the other end of the first driven wheel assembly (732) is connected to the second isolating switch (31); The second operating mechanism (5) sequentially transmits power through the first transmission driving wheel (711), the first transmission driven wheel (712), the transmission rod (72), the second transmission driven wheel (731) and the first driven wheel assembly (732) to activate the second isolating switch (31).

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