Supporting device for disassembly and maintenance of SF6 gas insulated switchgear

Abstract

The invention relates to a supporting device for disassembly and maintenance of an SF6 gas insulated switchgear. The supporting device comprises the auxiliary supporting mechanism and an arc extinguish chamber lifting and transferring mechanism, the auxiliary supporting mechanism comprises a first base, a telescopic column and a first supporting piece, one end of the telescopic column is connected with the base, and the other end of the telescopic column is connected with the first supporting piece. The telescopic column can drive the supporting piece to move close to or away from the base, and the first supporting piece is used for supporting a flange of a bus and / or a flange of a current transformer; the arc extinguish chamber lifting transfer mechanism comprises a second base, a lifting assembly and a second supporting piece, the base is provided with a walking piece used for driving the arc extinguish chamber lifting transfer mechanism to move, and the lifting assembly is connected with the second base and the second supporting piece and used for driving the second supporting piece to move close to or away from the base. And the second supporting piece is used for supporting the arc extinguish chamber. The supporting device gives consideration to adaptability, portability and safety.

Description

Technical Field

[0001] The present application relates to the technical field of disassembly and maintenance of SF6 gas-insulated fully enclosed combination electrical appliances, and in particular to a supporting device for disassembly and maintenance of SF6 gas-insulated fully enclosed combination electrical appliances. Background Art

[0002] SF6 gas insulated fully enclosed switchgear, referred to as GIS (GAS insulated SWITCHGEAR), is a new type of high-voltage supporting device developed after the application of SF6 gas. GIS usually includes circuit breakers, disconnectors, grounding switches, current transformers, busbars and other components.

[0003] GIS generally needs to undergo a withstand voltage test before leaving the factory, but components such as circuit breakers, busbars, and current transformers are assembled together for testing. When a phase circuit breaker fails the withstand voltage test or other adverse conditions occur, the circuit breaker needs to be disassembled. However, as shown in Figure 1, the upper support of the arc extinguishing chamber 101 of the circuit breaker is connected to the busbar 102, current transformer 103 and other components, and the busbar 102 and current transformer 103 are connected to the isolating switch (not shown) and other components through the flange 104. Therefore, when dismantling the circuit breaker, it is necessary to consider the temporary support of the components above the arc extinguishing chamber 101.

[0004] In the related art, a crane is usually used or a simple gantry bracket is processed on site to temporarily support the components above the arc extinguishing chamber 101. At the same time, a temporary lifting point needs to be set up to cooperate with a hoist, a sling, etc. to carry out the lifting and transfer of the circuit breaker arc extinguishing chamber 101. The installation of the operating tools is complicated, the portability is poor, and the stability is not high. Moreover, the equipment differences brought by different manufacturers and different projects are not taken into account, and the adaptability, portability, safety and other aspects are all poor. Summary of the invention

[0005] Based on this, it is necessary to provide a support device for dismantling and repairing SF6 gas-insulated fully enclosed combination electrical appliances in view of the poor adaptability, portability and safety of existing tools.

[0006] The present application provides a support device for disassembly and maintenance of SF6 gas-insulated fully enclosed combination electrical appliances, comprising:

[0007] an auxiliary support mechanism, the auxiliary support mechanism comprising a first base, a telescopic column and a first support member, one end of the telescopic column is connected to the first base, the other end of the telescopic column is connected to the first support member, the telescopic column can drive the first support member to move closer to or away from the first base, and the first support member is used to support a flange of a busbar and / or a flange of a current transformer; and

[0008] The arc extinguishing chamber lifting and transfer mechanism comprises a second base, a lifting assembly and a second support member, the second base is provided with a walking member for driving the arc extinguishing chamber lifting and transfer mechanism to move, the lifting assembly connects the second base and the second support member, the lifting assembly is used to drive the second support member to move closer to or away from the second base, and the second support member is used to support the arc extinguishing chamber.

[0009] The technical solution is further described below:

[0010] In one embodiment, the first base includes a crossbeam, a first column beam and a second column, the first column and the second column are connected to the crossbeam at intervals, an avoidance groove for avoiding obstacles is formed between the first column and the second column, and the crossbeam is connected to the telescopic column.

[0011] In one embodiment, the cross beam is rotatably connected to the telescopic column so that the first base can rotate around the axial direction of the telescopic column.

[0012] In one embodiment, the telescopic column comprises:

[0013] A first sleeve, one end of which is connected to the first base and the other end of which is connected to a first nut;

[0014] a second sleeve, one end of which is connected to the first support member, and the other end of which is connected to a second nut;

[0015] A screw rod, comprising an axially connected first thread segment and a second thread segment, the thread rotation direction of the first thread segment is opposite to the thread rotation direction of the second thread segment, the first thread segment can be movably inserted into the first sleeve and matched with the first nut thread, and the second thread segment can be movably inserted into the second sleeve and matched with the second nut thread.

[0016] In one embodiment, the telescopic column further includes an anti-slip gripping piece, which is sleeved on the screw rod and located between the first thread segment and the second thread segment.

[0017] In one embodiment, the first support member includes a support beam and a limit member arranged on the support beam, the limit member is provided with a first arc groove matching the shape of the flange, the number of the telescopic columns is at least two, all the telescopic columns are arranged at intervals along the extension direction of the support beam, and one end of each of the telescopic columns is connected to the support beam, and the other end of each of the telescopic columns is connected to one of the first bases.

[0018] In one embodiment, the walking member includes a plurality of universal wheels, and all the universal wheels are arranged at intervals on the second base.

[0019] In one embodiment, the lifting assembly comprises:

[0020] A first connecting rod, the first connecting rod comprises a first rod and a second rod, one end of the first rod is rotatably connected to the second base, the other end of the first rod is rotatably connected to one end of the second rod through a first rotating shaft, and the other end of the second rod is rotatably connected to the second support member;

[0021] a second connecting rod, the second connecting rod comprising a third rod and a fourth rod, one end of the third rod being rotatably connected to the second base, the other end of the third rod being rotatably connected to one end of the fourth rod via a second rotating shaft, and the other end of the fourth rod being rotatably connected to the second support member;

[0022] A driving rod, wherein the driving rod is connected to the first rotating shaft and / or the second rotating shaft, and the driving rod is used to drive the first rotating shaft and the second rotating shaft to move closer to each other or away from each other.

[0023] In one of the embodiments, the second support member is provided with a second arc-shaped groove matching the shape of the arc-extinguishing chamber.

[0024] In one embodiment, an anti-slip pad is provided on the first support member and / or the second support.

[0025] In the above-mentioned support device for dismantling and repairing SF6 gas-insulated fully enclosed combination electrical appliances, the flange of the busbar and / or the flange of the current transformer are supported by an auxiliary support mechanism, so that the components above the arc extinguishing chamber can be stably supported after the arc extinguishing chamber is disassembled. Compared with the traditional solution of using a crane or building a temporary door-type bracket for support, the auxiliary support mechanism of the present application occupies less space and does not require temporary assembly, making it more convenient to use. At the same time, the first support member is driven to rise and fall by a telescopic column, and the height of the auxiliary support mechanism can be flexibly adjusted to adapt to the height of the equipment flanges of different manufacturers and different projects, thereby improving the applicability of the auxiliary support mechanism. In addition, the arc extinguishing chamber lifting and transfer mechanism supports the arc extinguishing chamber through the second support member, and then drives the second support to lift and lower through the lifting assembly, so that the disassembled arc extinguishing chamber can be lowered to a suitable height, and the arc extinguishing chamber can be transferred to a suitable position for maintenance through the walking member, so there is no need to set up a temporary lifting point at the work site, and there is no need to manually operate the hoist or sling to lift the arc extinguishing chamber, which solves the lifting and shifting problems when the arc extinguishing chamber is dismantled for maintenance, and can effectively improve the safety and reliability of on-site maintenance of F6 gas-insulated fully enclosed combination electrical appliances. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0029] FIG1 is a schematic structural diagram of an SF6 gas-insulated fully enclosed switchgear according to an embodiment.

[0030] FIG2 is a schematic structural diagram of a supporting device supporting a SF6 gas-insulated fully enclosed switchgear according to an embodiment.

[0031] FIG. 3 is a side view of the supporting device shown in FIG. 2 supporting the SF6 gas-insulated fully enclosed switchgear.

[0032] FIG. 4 is a schematic structural diagram of an auxiliary supporting mechanism of a supporting device according to an embodiment.

[0033] FIG. 5 is a partial enlarged view of the portion A shown in FIG. 4 .

[0034] FIG6 is a schematic structural diagram of an arc extinguishing chamber lifting and transferring mechanism of a supporting device according to an embodiment.

[0035] FIG. 7 is a rear view of the arc extinguishing chamber lifting and transferring mechanism shown in FIG. 6 .

[0036] FIG. 8 is a side view of the arc extinguishing chamber lifting and transferring mechanism shown in FIG. 6 .

[0037] Description of reference numerals:

[0038] 101, arc extinguishing chamber; 102, busbar; 103, current transformer; 104, flange; 20, auxiliary support mechanism; 21, first base; 211, first column; 212, beam; 213, second column; 214, avoidance groove; 22, telescopic column; 221, first sleeve; 222, second sleeve; 223, screw; 2231, first thread segment; 2232, second thread segment; 224, first nut; 225, second nut; 22 6. Anti-slip gripping member; 23. First supporting member; 231. Support beam; 232. Limiting member; 2321. First arc-shaped groove; 30. Arc extinguishing chamber lifting and transfer mechanism; 31. Second base; 311. Universal wheel; 32. Lifting assembly; 321. First rod; 322. Second rod; 323. Third rod; 324. Fourth rod; 325. First rotating shaft; 326. Second rotating shaft; 327. Driving rod; 33. Second supporting member; 331. Second arc-shaped groove. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0040] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application 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 application.

[0041] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0044] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0045] 2 and 3, an embodiment of the present application provides a support device for dismantling and overhauling an SF6 gas-insulated fully enclosed combined electrical appliance, which is used to lower and transfer the arc extinguishing chamber 101 and support the components above the arc extinguishing chamber 101 when the SF6 gas-insulated fully enclosed combined electrical appliance is dismantled and overhauled. Specifically, the support device of an embodiment includes an auxiliary support mechanism 20 and an arc extinguishing chamber lifting and transferring mechanism 30, wherein the auxiliary support mechanism 20 is used to support the components above the arc extinguishing chamber 101, and the arc extinguishing chamber lifting and transferring mechanism 30 is used to lift and move the arc extinguishing chamber 101.

[0046] Specifically, in conjunction with FIG4 , the auxiliary support mechanism 20 includes a first base 21, a telescopic column 22 and a first support member 23, one end of the telescopic column 22 is connected to the first base 21, and the other end of the telescopic column 22 is connected to the first support member 23, the telescopic column 22 can drive the first support member 23 to move closer to or away from the first base, and the first support member 23 is used to support the flange 104 of the busbar 102 and / or the flange 104 of the current transformer 103;

[0047] 6 , the arc extinguishing chamber lifting and transfer mechanism 30 includes a second base 31, a lifting assembly 32 and a second support member 33. The second base 31 is provided with a walking member for driving the arc extinguishing chamber lifting and transfer mechanism 30 to move. The lifting assembly 32 connects the second base 31 and the second support member 33. The lifting assembly 32 is used to drive the second support member 33 to move closer to or away from the second base 31. The second support member 33 is used to support the arc extinguishing chamber 101.

[0048] For example, when the SF6 gas-insulated fully enclosed switchgear needs to be disassembled and repaired, the auxiliary support mechanism 20 is first moved to below the flange 104 of the busbar 102 or the flange 104 of the current transformer 103, and then the telescopic column 22 is adjusted to extend until the first support member 23 supports the flange 104. Preferably, in actual operation, multiple auxiliary support mechanisms 20 can be used simultaneously to support the flange 104 of the busbar 102 and the flange 104 of the current transformer 103, respectively.

[0049] Then, the arc extinguishing chamber lifting and transferring mechanism 30 is moved to the bottom of the arc extinguishing chamber 101, and the second supporting member 33 is lifted by the lifting assembly 32, so that the second supporting member 33 supports the arc extinguishing chamber 101. Then, the arc extinguishing chamber 101 is disassembled from the busbar 102 and the current transformer 103, and then, the arc extinguishing chamber 101 is slowly lowered to a suitable height by the lifting assembly 32, and then the arc extinguishing chamber 101 is transferred to a suitable position by the walking member, and then the arc extinguishing chamber 101 can be repaired. After the repair of the arc extinguishing chamber 101 is completed, the arc extinguishing chamber 101 can be transferred back to the original position by the walking member, and the arc extinguishing chamber 101 is slowly lifted to a suitable height by the lifting assembly 32, so as to install the repaired arc extinguishing chamber 101 back to the busbar 102 and the current transformer 103. Preferably, in actual operation, if the overall length of the arc extinguishing chamber 101 is long, multiple arc extinguishing chamber lifting and transferring mechanisms 30 can also be used simultaneously to support the arc extinguishing chamber 101.

[0050] In the above-mentioned support device for dismantling and overhauling SF6 gas-insulated fully enclosed combination electrical appliances, the flange 104 of the busbar 102 and / or the flange 104 of the current transformer 103 are supported by the auxiliary support mechanism 20, so that the components above the arc extinguishing chamber 101 can be stably supported after the arc extinguishing chamber 101 is disassembled. Compared with the traditional solution of using a crane or building a temporary door-type support for support, the auxiliary support mechanism 20 of the present application occupies less space and does not require temporary assembly, making it more convenient to use. At the same time, the telescopic column 22 is used to drive the first support member to rise and fall, and the height of the auxiliary support mechanism 20 can be flexibly adjusted to adapt to the height of the equipment flange 104 of different manufacturers and different projects, thereby improving the applicability of the auxiliary support mechanism 20. In addition, the arc extinguishing chamber lifting and transfer mechanism 30 supports the arc extinguishing chamber 101 through the second support member 33, and then drives the second support to lift and lower through the lifting assembly 32, so that the disassembled arc extinguishing chamber 101 can be lowered to a suitable height, and the arc extinguishing chamber 101 can be transferred to a suitable position for maintenance through the walking member, so that there is no need to set up a temporary lifting point at the work site, and there is no need to manually operate the hoist or sling to lift the arc extinguishing chamber 101, which solves the lifting and shifting problems when the arc extinguishing chamber 101 is disassembled for maintenance, and can effectively improve the safety and reliability of on-site maintenance of F6 gas-insulated fully enclosed combination electrical appliances.

[0051] 4 , the first base 21 includes a crossbeam 212, a first column 211 and a second column 213. The first column 211 and the second column 213 are connected to the crossbeam 212 at intervals, and a avoidance groove 214 for avoiding obstacles is formed between the first column 211 and the second column 213. The crossbeam 212 is connected to the telescopic column 22. The first column 211 and the second column 213 are arranged at intervals, and the avoidance groove 214 for avoiding obstacles is formed between the first column 211 and the second column 213, so that the first base 21 can be placed stably on the horizontal ground and can also be placed across obstacles, thereby improving the applicability and flexibility of the auxiliary support mechanism 20.

[0052] Furthermore, the crossbeam 212 is rotatably connected to the telescopic column 22, so that the first base 21 can rotate around the axial direction of the telescopic column 22. In this way, the first base 21 can flexibly adjust the angle of the first base 21 according to the position of the obstacle. For example, as shown in FIG. 2, the first base 21 is rotated to the crossbeam 212 to extend horizontally, so that the first base 21 can cross the longitudinal obstacle. The first base 21 is rotated to the crossbeam 212 to extend longitudinally, so that the first base 21 can cross the lateral obstacle, which further improves the use flexibility of the auxiliary support mechanism 20.

[0053] In conjunction with FIG. 4 and FIG. 5 , optionally, in one embodiment, the telescopic column 22 includes a first sleeve 221, a second sleeve 222, and a screw 223, wherein one end of the first sleeve 221 is connected to the first base 21, and the other end is connected to a first nut 224. One end of the second sleeve 222 is connected to the first support member 23, and the other end is connected to a second nut 225. The screw 223 includes an axially connected first thread segment 2231 and a second thread segment 2232, the thread rotation direction of the first thread segment 2231 is opposite to the thread rotation direction of the second thread segment 2232, the first thread segment 2231 is movably disposed in the first sleeve 221 and threadedly engaged with the first nut 224, and the second thread segment 2232 is movably disposed in the second sleeve 222 and threadedly engaged with the second nut 225. In this way, by rotating the screw 223, the first sleeve 221 and the second sleeve 222 can be moved closer to or farther away from each other, thereby lengthening or shortening the telescopic column 22, and further adjusting the overall height of the auxiliary support mechanism 20 to adapt to the height of the flange 104 of different devices.

[0054] 5 , the telescopic column 22 further includes an anti-skid gripping piece 226, which is sleeved on the screw rod 223 and located between the first thread segment 2231 and the second thread segment 2232. In this way, when rotating the screw rod 223, the operator can grip the anti-skid gripping piece 226 to operate, which is more convenient and labor-saving.

[0055] It is worth noting that, in other embodiments, the telescopic column 22 may also be an electric telescopic rod or a telescopic hydraulic cylinder or a pneumatic cylinder, etc., which is not limited here.

[0056] 4, optionally, in one embodiment, the first support member 23 includes a support beam 231 and a stopper 232 disposed on the support beam 231, and the stopper 232 is provided with a first arc groove 2321 matching the shape of the flange 104. In this way, by placing the flange 104 in the first arc groove 2321, the flange 104 can be stably supported to prevent the flange 104 from detaching from the first support member 23 during maintenance.

[0057] Continuing to refer to FIG. 4 , there are at least two telescopic columns 22, all of which are arranged at intervals along the extension direction of the support beam 231, and one end of each telescopic column 22 is connected to the support beam 231, and the other end of each telescopic column 22 is connected to a first base 21. The stability of the first support member 23 can be improved by at least two telescopic columns 22 supporting the first support member 23 together.

[0058] Referring to FIG. 6 , in one embodiment, the walking member includes a plurality of universal wheels 311, and all the universal wheels 311 are arranged at intervals on the second base 31. For example, the number of universal wheels 311 is four, the base is a rectangular plate-shaped structure, and the four universal wheels 311 are respectively arranged at the four corners of the base. In this way, the arc extinguishing chamber lifting and transferring mechanism 30 can be easily moved by using the universal wheels 311, thereby realizing the movement of the arc extinguishing chamber 101. It is understandable that in other embodiments, the number of universal wheels 311 can also be two, three, five or more, etc., which is not limited here.

[0059] 6 to 8 , in one embodiment, the lifting assembly 32 includes a first connecting rod, a second connecting rod and a driving rod 327, the first connecting rod includes a first rod 321 and a second rod 322, one end of the first rod 321 is rotatably connected to the second base 31, the other end of the first rod 321 is rotatably connected to one end of the second rod 322 via a first rotating shaft 325, the other end of the second rod 322 is rotatably connected to the second support member 33, the second connecting rod includes a third rod 323 and a fourth rod 324, one end of the third rod 323 is rotatably connected to the second base 31, the other end of the third rod 323 is rotatably connected to one end of the fourth rod 324 via a second rotating shaft 326, the other end of the fourth rod 324 is rotatably connected to the second support member 33, so that the first connecting rod and the second connecting rod form a diamond structure. Further, the driving rod 327 is connected to the first rotating shaft 325 and / or the second rotating shaft 326, and the driving rod 327 is used to drive the first rotating shaft 325 and the second rotating shaft 326 to move closer to or away from each other, so that the second support member 33 can be raised or lowered, thereby achieving the raising or lowering of the arc extinguishing chamber 101 on the second support member 33. Further, the driving rod 327 can be driven manually or by electricity, hydraulic pressure or pneumatic pressure, which is not limited here.

[0060] The second support member 33 is raised or lowered by driving the first connecting rod and the second connecting rod to rotate by the driving rod 327, which can make the lifting of the second support member 33 more stable and labor-saving, thereby improving the stability of the lifting or lowering of the arc extinguishing chamber 101. It is worth noting that in other embodiments, the lifting component 32 can also be an electric push rod, a hydraulic cylinder or a pneumatic cylinder, etc., which is not limited here.

[0061] 6 , the second support member 33 is provided with a second arc groove 331 matching the shape of the arc extinguishing chamber 101. In this way, the second support member 33 can support the arc extinguishing chamber 101 more stably, preventing the arc extinguishing chamber 101 from detaching from the second support member 33 during lifting or moving, thereby improving safety.

[0062] Optionally, in one embodiment, an anti-skid pad (not shown) is provided on the first support member 23 and / or the second support. Exemplarily, an anti-skid pad is provided in the first arc groove 2321 of the first support member 23, thereby increasing the friction between the first support member 23 and the flange 104, preventing the flange 104 from slipping out of the first arc groove 2321, and also preventing the first support member 23 from scratching the flange 104. Similarly, an anti-skid pad may also be provided in the second arc groove 331 of the second support member 33, thereby increasing the friction between the second support member 33 and the arc extinguishing chamber 101, preventing the arc extinguishing chamber 101 from slipping out of the second arc groove 331, and also preventing the second support member 33 from scratching the arc extinguishing chamber 101. Exemplarily, the anti-skid pad may be a rubber pad or a silicone pad.

[0063] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A support device for dismantling and repairing SF6 gas-insulated fully enclosed switchgear, characterized in that: include: An auxiliary support mechanism, the auxiliary support mechanism comprising a first base, a telescopic column and a first support member, one end of the telescopic column is connected to the first base, the other end of the telescopic column is connected to the first support member, the telescopic column can drive the first support member to move closer to or away from the first base, and the first support member is used to support a flange of a busbar and / or a flange of a current transformer; as well as The arc extinguishing chamber lifting and transfer mechanism comprises a second base, a lifting assembly and a second support member, the second base is provided with a walking member for driving the arc extinguishing chamber lifting and transfer mechanism to move, the lifting assembly connects the second base and the second support member, the lifting assembly is used to drive the second support member to move closer to or away from the second base, and the second support member is used to support the arc extinguishing chamber.

2. The supporting device for dismantling and repairing SF6 gas-insulated fully enclosed switchgear according to claim 1 is characterized in that: The first base includes a crossbeam, a first column beam and a second column. The first column and the second column are connected to the crossbeam at intervals. An avoidance groove for avoiding obstacles is formed between the first column and the second column. The crossbeam is connected to the telescopic column.

3. The supporting device for dismantling and repairing SF6 gas-insulated fully enclosed switchgear according to claim 2 is characterized in that: The cross beam is rotatably connected to the telescopic column so that the first base can rotate around the axial direction of the telescopic column.

4. The supporting device for dismantling and repairing SF6 gas-insulated fully enclosed switchgear according to claim 1 is characterized in that: The telescopic column comprises: A first sleeve, one end of which is connected to the first base and the other end of which is connected to a first nut; a second sleeve, one end of which is connected to the first support member, and the other end of which is connected to a second nut; A screw rod, comprising an axially connected first thread segment and a second thread segment, the thread rotation direction of the first thread segment is opposite to the thread rotation direction of the second thread segment, the first thread segment can be movably inserted into the first sleeve and matched with the first nut thread, and the second thread segment can be movably inserted into the second sleeve and matched with the second nut thread.

5. The supporting device for dismantling and repairing SF6 gas-insulated fully enclosed switchgear according to claim 4 is characterized in that: The telescopic column further comprises an anti-skid gripping piece, which is sleeved on the screw rod and located between the first thread segment and the second thread segment.

6. The supporting device for dismantling and repairing SF6 gas-insulated fully enclosed switchgear according to claim 1 is characterized in that: The first support member includes a support beam and a limit member arranged on the support beam, the limit member is provided with a first arc groove matching the shape of the flange, the number of the telescopic columns is at least two, all the telescopic columns are arranged at intervals along the extension direction of the support beam, and one end of each of the telescopic columns is connected to the support beam, and the other end of each of the telescopic columns is connected to one of the first bases.

7. The supporting device for dismantling and repairing SF6 gas-insulated fully enclosed switchgear according to claim 1 is characterized in that: The walking member includes a plurality of universal wheels, and all the universal wheels are arranged at intervals on the second base.

8. The supporting device for dismantling and repairing SF6 gas-insulated fully enclosed switchgear according to claim 1 is characterized in that: The lifting assembly comprises: A first connecting rod, the first connecting rod comprises a first rod and a second rod, one end of the first rod is rotatably connected to the second base, the other end of the first rod is rotatably connected to one end of the second rod through a first rotating shaft, and the other end of the second rod is rotatably connected to the second support member; a second connecting rod, the second connecting rod comprising a third rod and a fourth rod, one end of the third rod being rotatably connected to the second base, the other end of the third rod being rotatably connected to one end of the fourth rod via a second rotating shaft, and the other end of the fourth rod being rotatably connected to the second support member; A driving rod, wherein the driving rod is connected to the first rotating shaft and / or the second rotating shaft, and the driving rod is used to drive the first rotating shaft and the second rotating shaft to move closer to each other or away from each other.

9. The supporting device for dismantling and repairing SF6 gas-insulated fully enclosed switchgear according to claim 1 is characterized in that: The second supporting member is provided with a second arc-shaped groove matching the shape of the arc-extinguishing chamber.

10. The supporting device for dismantling and repairing SF6 gas-insulated fully enclosed switchgear according to any one of claims 1 to 9, characterized in that: The first support member and / or the second support is provided with an anti-slip pad.

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