Multi-adaptive switch device

Abstract

The invention discloses multi-adaptive switch equipment, which belongs to the field of switch equipment, and is characterized in that a main switch and a grounding switch are integrated on the same single-phase shell, and a plurality of groups of single-phase switch equipment are arranged along the axial direction, so that the physical space and bus interface occupied by the switch equipment are effectively reduced; and the arrangement flexibility of electric power facilities in a limited space is improved. The integrated switch design simplifies the installation and maintenance process, reduces the work complexity and time cost, and facilitates the daily inspection and maintenance. According to the switchgear, through the arrangement of the interphase supports, the structure of the switchgear is stabilized, electrical isolation is achieved, the safety and adaptability of the switchgear are enhanced, the requirements for space and performance under different working conditions can be met, and the overall efficiency and practicability of the switchgear are remarkably improved; the switch device is simple in principle and structure, compact in structure, good in electrical performance, high in adaptability, capable of meeting various practical application requirements and good in application and popularization value.

Description

Technical Field

[0001] The present invention belongs to the field of pumped-storage switch products, specifically relates to the field of switch equipment, and in particular to a multi-adaptability switch equipment. Background Art

[0002] Pumped storage power stations are the most reliable, economical, longest-lived, largest-capacity, and most technologically mature energy storage devices in the current power system. Building a pumped storage power station is one of the most economical and effective measures to improve the coordination, safety, and stability of power grid operation.

[0003] At present, pumped storage power stations generally use complete sets of switch products. Busbar section disconnectors, as one of the indispensable equipment of pumped storage power stations, usually need to be arranged vertically in actual engineering applications. In traditional structures, the main switch, as the core control element of the circuit, bears the important responsibilities of opening and closing the circuit, protecting equipment and personal safety. However, traditional structures often only contain independent main switches, while grounding switches appear in the circuit as independent products. Although this layout method meets the basic electrical control needs to a certain extent, it also has certain limitations, which are specifically manifested in the following aspects: First, since the main switch and the grounding switch are both independent products, their layout in the circuit often requires occupying a large physical space and busbar interface, which increases the overall size of the equipment and limits the flexible layout of power facilities in a limited space. Second, due to the independent product design, the main switch and the grounding switch need to be handled separately during installation and maintenance, which increases the complexity and time cost of the work. In addition, the large space occupation also increases the difficulty of inspection and maintenance. Therefore, the traditional switchgear structure has poor adaptability and cannot meet the space requirements of the equipment under different working conditions.

[0004] It can be seen that the existing switchgear has poor adaptability due to the design of independent products for the main switch and the grounding switch, and cannot meet the actual application requirements of the equipment for space under different working conditions. Summary of the invention

[0005] The present invention provides a multi-adaptability switch device to solve the technical problem that the existing switch device has poor adaptability and cannot meet the actual application requirements of the device for space under different working conditions because the main switch and the grounding switch are designed as independent products.

[0006] In order to achieve the above object, the present invention adopts the following technical contents: A multi-adaptable switchgear comprises a plurality of groups of single-phase switchgear arranged axially; the plurality of groups of single-phase switchgear are connected via a base frame; The single-phase switchgear comprises a single-phase housing; The single-phase housing is provided with a main switch and a grounding switch; wherein the main switch is located inside the single-phase housing; An operating transmission unit is provided at the bottom of the single-phase switch device located at the bottom, and the operating transmission unit is connected to the main switch and the grounding switch respectively; An interphase support is provided between each two adjacent groups of the single-phase switch devices, and the interphase support is used to support the single-phase switch devices, adjust the spacing and achieve electrical isolation.

[0007] Furthermore, multiple groups of single-phase switch devices are arranged along the box connecting surface of the base frame; the single-phase housing is connected to the wall through the connecting legs of the base frame; the bottom of the single-phase switch device located at the bottom is connected to the supporting legs of the base frame, which is used to support the switch device in a vertical state on the foundation surface.

[0008] Furthermore, interphase supports are provided between the single-phase housing and the base frame to achieve electrical isolation.

[0009] Further, the interphase support includes a screw and a nut; In the two adjacent groups of single-phase housings, a first supporting bent plate is installed at the bottom of the single-phase housing located on the upper side, and a second supporting bent plate is installed at the top of the single-phase housing located on the lower side; The screw rod is inserted between the first supporting bent plate and the second supporting bent plate and is fixed by a nut; An electrical isolation component is sleeved on the screw rod to achieve electrical isolation.

[0010] Further, the electrical isolation assembly includes an insulating sleeve and an insulating pad respectively sleeved on the screw rod; nuts are provided on both sides of the first supporting bent plate, serving as a top nut and a bottom top nut; The insulating sleeve is located between the top nut and the first supporting bent plate, the insulating sleeve adopts a T-shaped hollow structure, and the end of the T-shaped hollow structure is inserted into the screw hole of the first supporting bent plate; The insulating pad is located between the bottom nut and the first supporting bent plate; Gaskets are arranged between the insulating sleeve and the top nut and between the insulating pad and the bottom nut, and the gaskets are sleeved on the screw rod.

[0011] Furthermore, the base frame is provided with a plurality of lifting points for lifting and flipping the switchgear; the lifting points include a first lifting point, a second lifting point and a third lifting point; the overall cross-section of the base frame is L-shaped, including a connected side plate and a bottom plate; the first lifting point is located on the bottom plate and is located below the bottom single-phase switchgear; the second lifting point is located on the side plate and is located between the two groups of single-phase switchgear located above; the third lifting point is located on the side plate and is located above the top single-phase switchgear; The first lifting point cooperates with the second lifting point to be used for lifting and transporting the switchgear; The first hanging point cooperates with the third hanging point to be used for flipping the switch device.

[0012] Furthermore, the second hanging point is provided with a hanging ear; the hanging ear adopts a T-shaped structure, and is arranged through a mounting hole opened on the box connecting surface of the base frame and is welded to the mounting hole.

[0013] Furthermore, the cross section of the single-phase housing in the main circuit direction is square, polygonal, or a combination of a plane and an arc, and the grounding switch is installed on any plane outside the single-phase housing.

[0014] Furthermore, the grounding switch is installed inside the single-phase housing through a grounding mounting plate.

[0015] Further, the single-phase switch device comprises a main switch unit and a grounding switch unit; the main switch unit comprises a main switch unit housing, and a plurality of main switch unit housings are connected via a box connection surface of the chassis; The grounding switch unit comprises a grounding switch unit housing connected to the main switch unit housing; The end surface A and the end surface B of the grounding switch unit housing are correspondingly and closely arranged with the first end surface and the second end surface of the main switch unit housing.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a multi-adaptive switchgear, which integrates the main switch and the grounding switch on the same single-phase housing and arranges multiple groups of single-phase switchgear along the axial direction, effectively reducing the physical space occupied by the switchgear and the busbar interface, and improving the layout flexibility of power facilities in a limited space. The integrated switch design simplifies the installation and maintenance process, reduces the complexity of the work and the time cost, and is convenient for daily inspection and maintenance; the switchgear not only stabilizes the equipment structure through the setting of phase-to-phase support, but also realizes electrical isolation, enhances the safety and adaptability of the equipment, can meet the space and performance requirements under different working conditions, and significantly improves the overall efficiency and practicality of the switchgear; the switchgear has a simple principle and structure, a compact structure, good electrical performance, strong adaptability, can meet a variety of practical application needs, and has good promotion and application value.

[0017] Preferably, in the present invention, the single-phase switch device is distributed axially along the connecting surface of the base frame box, and is connected to the wall through the connecting legs of the base frame, and the supporting legs are supported on the foundation surface. This design enhances the stability and supporting force of the equipment and ensures the stable operation of the equipment in a vertical state.

[0018] Preferably, in the present invention, interphase supports are also provided between the single-phase housing and the base frame, which not only provide structural support but also achieve electrical isolation, thereby enhancing the safety and reliability of the equipment.

[0019] Preferably, in the present invention, a combination of a screw, a nut, a first support bent plate, a second support bent plate and an electrical isolation component is used to achieve a stable connection and electrical isolation between adjacent single-phase switch devices, thereby improving the overall performance and safety of the equipment.

[0020] Further preferably, in the present invention, the use of insulating sleeves and insulating pads, as well as the provision of gaskets, further enhance the electrical isolation effect, prevent the occurrence of electrical faults, and ensure the stable operation of the equipment.

[0021] Preferably, in the present invention, the provision of the lifting points facilitates the lifting and turning of the equipment, improves the convenience of installation and maintenance, and also provides convenience for the transportation and storage of the equipment.

[0022] Preferably, in the present invention, the lifting ear design of the T-shaped structure enhances the load-bearing capacity and stability of the lifting point, ensuring the safety of the equipment during the lifting process; in particular, the arrangement in which the T-shaped structure passes through the mounting hole and is welded to the mounting hole is adopted. Even if the weld is detached, the gravity can be borne by the T-shaped structure, thereby ensuring the reliability of the lifting ear.

[0023] Preferably, in the present invention, the cross-sectional shapes of the single-phase housing in the main circuit direction are various and can be selected according to actual needs, thereby improving the adaptability and flexibility of the equipment; at the same time, the grounding switch is installed on any plane outside the single-phase housing, which also increases the flexibility of installation.

[0024] Preferably, in the present invention, the grounding switch is installed inside the single-phase housing through the grounding mounting plate, thereby realizing the hidden installation of the grounding switch, which not only saves space but also improves the aesthetics of the equipment; the setting of the grounding mounting plate can conduct the grounding loop to the housing, thereby ensuring the electrical performance.

[0025] Preferably, in the present invention, the single-phase switch device can adopt a modular setting, and the main switch unit and the grounding switch unit are designed separately and combined together, which not only ensures the independence of their respective functions, but also realizes the compactness of the overall structure, and improves the overall performance and reliability of the equipment; the modular design facilitates assembly and disassembly, and better meets actual engineering needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a multi-adaptive switch device provided by an embodiment of the present invention; Figure 2 A structural side view of a multi-adaptive switch device provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a phase-to-phase support of a multi-adaptive switchgear provided in an embodiment of the present invention; Figure 4 for Figure 3 Middle partial enlarged picture; Figure 5 A schematic diagram of the structure of an insulating sleeve for phase-to-phase support provided in an embodiment of the present invention; Figure 6 A schematic diagram of hoisting a multi-adaptability switchgear provided in an embodiment of the present invention; Figure 7 A schematic diagram of a flipping of a multi-adaptive switch device provided by an embodiment of the present invention; Figure 8 A lifting lug connection diagram of a multi-adaptability switch device provided by an embodiment of the present invention; Fig. 9 The present invention provides an arrangement of a single-phase housing and a grounding switch under different cross-sections of a multi-adaptive switch device; wherein (a) is a rear connection under a square cross-section; (b) is a front connection under a square cross-section; (c) is a rear connection under a polygonal cross-section; (d) is a front connection under a polygonal cross-section; (e) is a rear connection under a plane arc-shaped joint surface; (f) is a front connection under a plane arc-shaped joint surface; Fig.10A schematic structural diagram of a grounding switch of a multi-adaptive switch device provided by an embodiment of the present invention arranged in a single-phase housing; wherein (a) is a front view; (b) is a side view; Fig.11 A schematic structural diagram of a grounding switch unit of a multi-adaptability switch device provided in an embodiment of the present invention; wherein (a) is a front view; (b) is a side view; Fig.12 A schematic structural diagram of a main switch unit of a multi-adaptive switch device provided in an embodiment of the present invention; wherein (a) is a front view; and (b) is a side view.

[0027] Reference numerals: 1-main switch; 2-grounding switch; 3-phase support; 4-single-phase switch equipment; 5-first grounding switch operating mechanism and transmission; 6-main switch operating mechanism and transmission; 7-second grounding switch operating mechanism and transmission; 8-base frame; 9-single-phase housing; 10-grounding mounting plate; 11-main switch unit; 12-main switch unit body; 21-grounding switch unit; 211-grounding static side; 212-grounding dynamic side; 31-gasket; 32-screw; 33-nut; 34-insulating sleeve; 341-outer surface; 342-inner surface; 35-insulating pad; 81-connecting leg; 82-hanging point; 821-first hanging point; 822-second hanging point; 8221-hanging ear; 8222-mounting hole; 823-third hanging point; 83-supporting leg; 84-box connecting surface; 85-supporting surface; 91 - main switch unit housing; 911 - first end face; 912 - second end face; 92 - grounding switch unit housing; 921 - end face A; 922 - end face B; 951 - first supporting bent plate; 952 - second supporting bent plate. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail in the following specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply 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 on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example 1 As mentioned in the background technology, the traditional structure often only includes an independent main switch, while the grounding switch appears in the loop as an independent product. Although this layout method meets the basic electrical control needs to a certain extent, it also has certain limitations, which are: First, since the main switch and the grounding switch are independent products, their layout in the loop often requires occupying a larger physical space and busbar interface, which increases the overall size of the equipment and limits the flexible layout of power facilities in a limited space; second, due to the independent product design, the main switch and the grounding switch need to be handled separately during the installation and maintenance process, which increases the complexity and time cost of the work; in addition, the larger space occupancy also increases the difficulty of inspection and maintenance.

[0036] In order to solve the above problems, the present invention provides a multi-adaptable switch device, which integrates the main switch and the grounding switch into an integrated design, reduces the occupied physical space and busbar interface, has strong adaptability, and can meet the space requirements of the equipment under different working conditions.

[0037] like Figure 1 and Figure 2 As shown, this embodiment provides a multi-adaptive switch device, phase support 3, single-phase switch device 4, first earthing switch operating mechanism and transmission 5, main switch operating mechanism and transmission 6, second earthing switch operating mechanism and transmission 7 and base frame 8.

[0038] In this embodiment, the main body of the switch device is arranged vertically, the connecting legs 81 of the base frame 8 are connected to the wall, the connecting legs 81 have a variety of arrangements and connection methods (such as 6, 8 or 10 in number, welded or bolted), and the supporting legs 83 are connected to the base surface or the supporting frame on the base surface to ensure that the switch device is stable and reliable in use and will not tip over; the single-phase switch device 4 is connected to the box connection surface 84, and the three-phase single-phase switch device 4 is distributed along the box connection surface 84; in order to prevent the single-phase switch device 4 from causing deformation or damage to the single-phase housing 9 due to excessive cantilever, phase supports 3 are provided to support each layer based on the support surface 85, and the number of phase supports 3 on each layer can be 1 or more. If multiple phase supports 3 are used, the multiple phase supports 3 are evenly arranged.

[0039] In this embodiment, the main switch 1 and the grounding switch 2 are installed inside and outside the single-phase housing 9 to form a single-phase switch device 4. The grounding switch 2 is distributed on both sides or one side of the break of the main switch 1 and arranged as needed; the first grounding switch operating mechanism and transmission 5, the main switch operating mechanism and transmission 6, and the second grounding switch operating mechanism and transmission 7 are transmissively arranged in front of 9, behind, on the left or right side, and the first grounding switch operating mechanism and transmission 5, the main switch operating mechanism and transmission 6, and the second grounding switch operating mechanism and transmission 7 are arranged below the three-phase single-phase switch device 4 to facilitate personnel observation or manual operation.

[0040] like Figure 3 As shown, in this embodiment, the interphase support 3 includes a gasket 31, a screw 32, a nut 33, an insulating sleeve 34, and an insulating pad 35. By adjusting the position of the nut 33 on the screw 32, the distance between the first support bent plate 951 and the second support bent plate 952 can be adjusted, which can overcome the distance deviation between the single-phase housings of different phases due to manufacturing errors and increase the fault tolerance of manufacturing; the single-phase housings 9 of different phases need to be electrically isolated in application, such as Figure 3 and Figure 4 As shown, an insulating sleeve 34 and an insulating pad 35 are provided between the nuts 33; Figure 5 As shown, the insulating sleeve 34 is a T-shaped hollow structure, and the outer surface 341 and the inner surface 342 can be cylindrical surfaces or multi-faceted columns; the screw 32 passes through the center of the inner surface 342, and the insulating sleeve 34 realizes the electrical isolation of the first supporting bent plate 951 and the screw 32, and the insulating pad 35 realizes the electrical isolation of the first supporting bent plate 951 and the gasket 31 and the nut 33; In this embodiment, an electrical isolation mechanism is also provided between the single-phase housing 9 and the base frame 8 , and the method for implementing the electrical isolation is the same as the electrical isolation measure at the position of the interphase support 3 .

[0041] It can be seen that this switchgear effectively reduces the physical space occupied by the switchgear and the busbar interface by integrating the main switch and the grounding switch on the same single-phase housing and arranging multiple groups of single-phase switchgear along the axial direction, thereby improving the layout flexibility of power facilities in limited space. The integrated switch design simplifies the installation and maintenance process, reduces the complexity of the work and the time cost, and is convenient for daily inspection and maintenance; this switchgear not only stabilizes the equipment structure through the setting of phase-to-phase support, but also realizes electrical isolation, enhances the safety and adaptability of the equipment, and can meet the space and performance requirements under different working conditions, significantly improving the overall efficiency and practicality of the switchgear.

[0042] Example 2 This embodiment also provides another multi-adaptive switch device, which is further optimized and improved on the basis of embodiment 1, as follows: In this embodiment, a suspension point 82 is provided on the base frame 8; Figure 6 and Figure 7 , the hanging point 82 includes a first hanging point 821, a second hanging point 822 and a third hanging point 823; wherein, Figure 6 As shown, the first lifting point 821 and the second lifting point 822 are used for horizontal lifting of the switchgear during transportation. Figure 7 As shown, the first hanging point 821 and the third hanging point 823 are the hanging points used when the switchgear is flipped from horizontal to vertical before the installation station. The second guide chain is used at the third hanging point 823, and the first guide chain is used at the first hanging point 821. By adjusting the length of the first guide chain and the second guide chain 2, the switchgear is flipped from a horizontal state to a vertical state and moved to the installation station; Figure 8 As shown, the ear 8221 of the second hanging point 822 is T-shaped, and the mounting hole 8222 for fixing the ear 8221 is opened on the box connecting surface 84; the ear 8221 is welded through the mounting hole 8222, and even if the weld is detached, the gravity can be borne by the T-shaped structure, thereby ensuring the reliability of the ear.

[0043] like Fig. 9 As shown, in this embodiment, specifically in the single-phase switch device 4, as Fig. 9 As shown in (a) and (b), when the cross section of the single-phase housing 9 in the main circuit direction is square, the grounding switch 2 can be arranged at the front side or the rear side of the single-phase housing 9, and the first grounding switch operating mechanism and the transmission 5 or the second grounding switch operating mechanism and the transmission 7 are arranged with the grounding switch 2; like Fig. 9 As shown in (c) and (d), when the cross section of the single-phase housing 9 in the main circuit direction is polygonal, such as a hexagon, the grounding switch 2 can be arranged on any one of the front side, rear side, oblique upper side such as surface 1, surface 2, oblique lower side such as surface 3, surface 4, etc. of the single-phase housing 9; like Fig. 9 As shown in (e) and (f), the cross section of the single-phase housing 9 in the main circuit direction is a combination of a plane and an arc surface.

[0044] like Fig.10 As shown, specifically Fig.10 As shown in (a) and (b), in this embodiment, the grounding switch 2 can also be arranged inside the single-phase housing 9 as needed; the volume of the single-phase housing 9 is enlarged, and a grounding switch mounting plate 10 is set inside the single-phase housing 9, and the grounding switch 2 is installed on the grounding mounting plate 10, so that the grounding circuit can be connected to the housing, and the transmission is arranged outside the box through the output shaft. The grounding switch 2 can be arranged at the front, rear, obliquely upward, or obliquely downward inside the single-phase housing 9.

[0045] like Fig.11 Shown and Fig.12As shown, in the single-phase switch device 4 of this embodiment, the main switch 1, the grounding switch 2, and the single-phase housing 9 can be split into two units, namely the main switch unit 11 and the grounding switch unit 21, and then combined according to engineering needs.

[0046] like Fig.12 As shown, specifically Fig.12 As shown in (a) and (b), the main switch unit 11 includes a main switch unit body 12 and a main switch unit shell 91; the cross-section of the main switch unit shell 91 is the same as the cross-section of the single-phase shell 9 in the main circuit direction, the main switch unit shell 91 is connected to the box connecting surface 84 of the base frame 8, and the front end is supported from the support surface 85.

[0047] like Fig.11 As shown in (a) and (b), the grounding switch unit 21 includes a grounding static side 211, a grounding dynamic side 212 and a grounding switch unit housing 92; wherein the grounding static side 211 is connected to the main switch unit body 12, and the end face A921 and the end face B922 of the grounding switch unit housing 92 are correspondingly connected to the first end face 911 and the second end face 912 of the main switch unit housing 91 as needed.

[0048] It can be seen that this embodiment provides a multi-adaptive switch device, which designs a multi-directional arrangement of grounding switches to meet the space requirements of the switch device under different working conditions. At the same time, a cantilever support structure is set up, which not only meets the support needs, but also can adjust the spacing and has an electrical isolation function.

[0049] The present invention provides a multi-adaptive switch device, which has the following advantages compared with the existing switch devices: First, adaptability and compactness: By axially arranging multiple groups of single-phase switchgear and connecting them through the chassis, and integrating the grounding switch and the main switch on the single-phase housing, the equipment is highly integrated and compactly laid out, improving space utilization. At the same time, the multi-adaptability design enables the switchgear to flexibly adapt to the needs of different power systems and installation environments.

[0050] Second, electrical isolation and safety: Setting interphase supports between the single-phase casing and the chassis and between adjacent single-phase switchgear not only provides structural support, but also achieves effective electrical isolation through electrical isolation components (such as insulating sleeves, insulating pads, etc.), ensuring that the induced current between different phase boxes flows according to the predetermined loop, meets the expected design requirements, and enhances equipment safety and reliability.

[0051] Third, convenient installation and maintenance: The grounding switch can be installed on any plane inside or outside the single-phase housing and fixed by the grounding mounting plate. This design simplifies the installation process and improves installation efficiency. At the same time, multiple lifting points set on the chassis facilitate the lifting, flipping and transportation of the equipment, further reducing the difficulty of installation and maintenance.

[0052] Fourth, flexible scalability: Single-phase switchgear can be designed modularly, including main switch unit and grounding switch unit. These units are connected through the box connection surface of the chassis, so that the equipment can be flexibly expanded or reduced as needed to meet the power requirements of different capacities.

[0053] Fifth, stable support structure: The base frame is connected to the wall through the connecting legs and supported on the foundation surface through the supporting legs, ensuring the stability of the equipment in a vertical state. At the same time, the setting of interphase support also enhances the overall stability and earthquake resistance of the equipment.

[0054] Sixth, strong adaptability: The cross-sectional shapes of the single-phase housing in the main circuit direction are diverse, and different arrangements of grounding switches can be selected according to actual needs, thus meeting different needs in engineering applications.

[0055] Seventh, efficient operating transmission: An operating transmission unit is set at the bottom of the single-phase switchgear located at the bottom. The unit is connected to the main switch and the grounding switch, realizing centralized control and operation of the switchgear, and improving operating efficiency and convenience.

[0056] The above embodiment is only one of the implementation methods that can realize the technical solution of the present invention. The scope of protection claimed by the present invention is not limited only to this embodiment, but also includes changes, replacements and other implementation methods that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the present invention.

Claims

1. A multi-adaptive switch device, characterized in that: It comprises a plurality of groups of single-phase switch devices (4) arranged axially; the plurality of groups of single-phase switch devices (4) are connected via a base frame (8); The single-phase switch device (4) comprises a single-phase housing (9); The single-phase housing (9) is provided with a main switch (1) and a grounding switch (2); wherein the main switch (1) is located inside the single-phase housing (9); An operating transmission unit is arranged at the bottom of the single-phase switch device (4) located at the bottom, and the operating transmission unit is respectively connected to the main switch (1) and the grounding switch (2); An interphase support (3) is provided between each two adjacent groups of the single-phase switch devices (4), and the interphase support (3) is used to support the single-phase switch devices (4), adjust the spacing, and achieve electrical isolation.

2. The multi-adaptive switch device according to claim 1, characterized in that: A plurality of groups of single-phase switch devices (4) are arranged along the box connection surface (84) of the base frame (8); the single-phase housing (9) is connected to the wall via the connection legs (81) of the base frame (8); and the bottom of the single-phase switch device (4) located at the bottom is connected to the support legs (83) of the base frame (8) for supporting the switch device in a vertical state on a foundation surface.

3. The multi-adaptive switch device according to claim 1, characterized in that: An interphase support (3) is provided between the single-phase housing (9) and the base frame (8) to achieve electrical isolation.

4. The multi-adaptive switch device according to claim 1, characterized in that: The interphase support (3) comprises a screw (32) and a nut (33); In two adjacent groups of single-phase casings (9), a first supporting bent plate (951) is installed at the bottom of the single-phase casing (9) located at the upper side, and a second supporting bent plate (952) is installed at the top of the single-phase casing (9) located at the lower side; The screw rod (32) is inserted between the first supporting bent plate (951) and the second supporting bent plate (952), and is fixed by a nut (33); An electrical isolation component is sleeved on the screw rod (32) to achieve electrical isolation.

5. The multi-adaptive switch device according to claim 4, characterized in that: The electrical isolation assembly comprises an insulating sleeve (34) and an insulating pad (35) respectively sleeved on the screw rod (32); nuts (33) are provided on both sides of the first supporting bent plate (951), serving as a top nut (33) and a bottom top nut (33); The insulating sleeve (34) is located between the top nut (33) and the first supporting bent plate (951); the insulating sleeve (34) adopts a T-shaped hollow structure, and the end of the T-shaped hollow structure is inserted into the screw hole of the first supporting bent plate (951); The insulating pad (35) is located between the bottom nut (33) and the first supporting bent plate (951); A gasket (31) is provided between the insulating sleeve (34) and the top nut (33) and between the insulating pad (35) and the bottom nut (33), and the gasket (31) is sleeved on the screw rod (32).

6. The multi-adaptive switch device according to claim 1, characterized in that: The base frame (8) is provided with a plurality of lifting points (82) for lifting and flipping the switchgear; the lifting points (82) include a first lifting point (821), a second lifting point (822) and a third lifting point (823); the base frame (8) has an overall L-shaped cross-section, including a connected side plate and a bottom plate; the first lifting point (821) is located on the bottom plate and is located below the bottom single-phase switchgear (4); the second lifting point (822) is located on the side plate and is located between the two groups of single-phase switchgear (4) located above; the third lifting point (823) is located on the side plate and is located above the top single-phase switchgear (4); The first lifting point (821) cooperates with the second lifting point (822) to be used for lifting and transporting the switchgear; The first hanging point (821) cooperates with the third hanging point (823) to be used for flipping the switch device.

7. The multi-adaptive switch device according to claim 6, characterized in that: The second hanging point (822) is provided with a hanging ear (8221); the hanging ear (8221) adopts a T-shaped structure and is arranged through a mounting hole (8222) opened on the box connecting surface (84) of the bottom frame (8) and is connected to the mounting hole (8222) by welding.

8. The multi-adaptive switch device according to claim 1, characterized in that: The cross-section of the single-phase housing (9) in the main circuit direction is square, polygonal, or a combination of a plane and an arc, and the grounding switch (2) is installed on any plane outside the single-phase housing (9).

9. The multi-adaptable switch device according to claim 1, characterized in that: The grounding switch (2) is installed inside the single-phase housing (9) via a grounding mounting plate (10).

10. The multi-adaptable switch device according to claim 1, characterized in that: The single-phase switch device (4) comprises a main switch unit (11) and a grounding switch unit (21); the main switch unit (11) comprises a main switch unit housing (91), and a plurality of main switch unit housings (91) are connected via a housing connection surface (84) of a base frame (8); The grounding switch unit (21) comprises a grounding switch unit housing (92) connected to a main switch unit housing (91); The end surface A (921) and the end surface B (922) of the grounding switch unit housing (92) are correspondingly arranged to fit the first end surface (911) and the second end surface (912) of the main switch unit housing (91).

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