Vacuum arc-extinguishing chamber and assembling and fixing tool thereof

Abstract

The invention relates to a vacuum arc-extinguishing chamber and an assembling and fixing tool thereof. The assembling and fixing tool comprises a fixing base, a fixing piece and a first locking piece. The fixed seat is provided with a placing cavity and a via hole communicated with the placing cavity, the vacuum arc-extinguishing chamber is arranged in the placing cavity, and the via hole is configured to allow the movable end of the vacuum arc-extinguishing chamber to extend out of the placing cavity; the fixed part is arranged on the fixed seat, the fixed part is provided with a fixed end and a movable end, the fixed end is used for being fixedly connected with a movable end of the vacuum arc-extinguishing chamber, and the movable end can move relative to the fixed seat; and the first locking piece is used for locking the movable end and the fixed seat. According to the assembling and fixing tool, the vacuum arc extinguish chamber can be fixed, the movable end of the arc extinguish chamber does not need to be manually fixed by assembling personnel, and the vacuum arc extinguish chamber is easy to assemble.

Description

Technical Field

[0001] The present application relates to the technical field of assembly of vacuum interrupter chambers, and in particular to vacuum interrupter chambers and assembly and fixing tooling thereof. Background Art

[0002] The vacuum interrupter is the core component of medium and high voltage power switches. Its main function is to quickly extinguish the arc and suppress the current through the vacuum environment inside it, thereby avoiding accidents and unexpected events. It is mainly used in power transmission and distribution systems and has the characteristics of energy saving, explosion-proof, small size, long life, reliable operation and no pollution. The vacuum interrupter is divided into the interrupter for circuit breakers and the interrupter for load switches in terms of use. The interrupter for circuit breakers is mainly used in substations and power grid facilities in the power sector, and the interrupter for load switches is mainly used for end users of the power grid.

[0003] In the structure of vacuum interrupter, bellows is an important sealing component. The bellows can not only isolate the vacuum state inside the vacuum interrupter from the external atmospheric state, but also enable the moving contact and the moving conductive rod to move within a specified range to complete the closing and breaking operations of the vacuum switch. However, the disadvantage of the bellows is that it cannot withstand large torque. Large torque will damage the welding part of the bellows, which will cause leakage in the vacuum interrupter. Therefore, during the assembly process of the vacuum interrupter, measures should be taken to prevent the bellows connected to the moving end of the interrupter from twisting.

[0004] The moving end of the vacuum interrupter is usually provided with threads and connected to other parts by bolts. In the related assembly technology, one person needs to hold the tool to fix the moving end of the vacuum interrupter, and the other person tightens the fixing bolts of the moving end of the vacuum interrupter. That is, at least two assemblers are required to cooperate. In addition, the moving end of the interrupter cannot be guaranteed not to be twisted during the assembly process, and the assembly process is complicated. Summary of the invention

[0005] Based on this, it is necessary to provide a vacuum interrupter and its assembly fixing tooling to address the problem of complex assembly of the vacuum interrupter.

[0006] An assembly and fixing tool for a vacuum interrupter, the assembly and fixing tool comprising:

[0007] A fixing seat, comprising a placement cavity and a through hole communicating with the placement cavity, wherein the placement cavity is used to arrange the vacuum interrupter, and the through hole is configured to allow the moving end of the vacuum interrupter to extend out of the placement cavity;

[0008] A fixing member, arranged on the fixing seat, the fixing member having a fixed end and a movable end, the fixed end being used for fixed connection with the movable end of the vacuum interrupter, and the movable end being movable relative to the fixing seat; and

[0009] The first locking member is used to lock the movable end with the fixing seat.

[0010] In one embodiment, the fixed end has a first fixing portion and a second fixing portion that are spaced apart from each other, and the first fixing portion and the second fixing portion are respectively used to clamp the movable end at two opposite sides of the movable end.

[0011] In one embodiment, the first fixing portion includes a first side wall and a first bolt, the first side wall is respectively provided with a first screw hole, and the first bolt is used to pass through the first screw hole to abut against the plane of one side of the movable end;

[0012] And / or, the second fixing portion includes a second side wall and a second bolt, the second side wall is respectively provided with a second screw hole, and the second bolt is used to pass through the second screw hole to abut against the plane on the other side of the movable end.

[0013] In one of the embodiments, a sliding groove is provided on the fixing member, and the sliding groove extends from the movable end to the fixed end, and the first locking member can slide in the sliding groove.

[0014] In one of the embodiments, the assembly and fixing tool further includes an adjusting pad block, which is disposed between the movable end and the fixing seat, and is used to adjust the height of the movable end.

[0015] In one embodiment, there are multiple adjusting pads, each of which has a different thickness, and the multiple adjusting pads are selectively arranged between the movable end and the fixed seat.

[0016] In one embodiment, the fixing seat comprises:

[0017] Base plate;

[0018] A top plate, arranged opposite to the bottom plate;

[0019] At least two support rods, one end of which is connected to the outer peripheral side of the top plate, and the other end of which is connected to the outer peripheral side of the bottom plate. The top plate, support rods and bottom plate are used to enclose the placement cavity, and the via hole is opened on the top plate.

[0020] In one embodiment, the top plate is an arc-shaped structure, and a notch is formed on one side of the top plate along the circumference, and the notch is configured to allow the vacuum arc extinguishing chamber to enter the placement cavity through the notch.

[0021] In one of the embodiments, an arc-shaped guide groove is formed on the top plate, and the first locking member can move along the arc-shaped guide groove.

[0022] In one of the embodiments, the assembly and fixing tool comprises a third locking piece, and the third locking piece is used to connect the static end of the vacuum interrupter to the bottom plate.

[0023] A vacuum interrupter chamber is provided. The vacuum interrupter chamber is used for being fixed by an assembly fixing tool. The vacuum interrupter chamber has a moving end. An outer side wall of the moving end has a plane.

[0024] When assembling the above-mentioned vacuum arc chamber and its assembly and fixing tool, first place the vacuum arc chamber in the placement cavity, then move the movable end of the fixing member so that the fixed end of the fixing member is fixed to the fixing seat, when the position of the fixed end is determined, the position of the movable end on the fixing seat is also determined, and then fix the movable end by the first locking member to achieve the fixation of the vacuum arc chamber, and then connect the movable end of the vacuum arc chamber to other parts. That is, the vacuum arc chamber can be fixed by the assembly and fixing tool of the present application, and there is no need for the assembler to manually fix the movable end of the arc chamber, making the assembly of the vacuum arc chamber simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure in which a vacuum interrupter is fixed in an assembly fixture in one embodiment.

[0026] Figure 2 for Figure 1 Schematic diagram of the structure of the assembly fixing tool removing the support seat.

[0027] Figure 3 Schematic diagram of the structure of a fixing member in one embodiment.

[0028] Figure 4 It is a top view of the assembly fixing tool and the vacuum interrupter in one embodiment.

[0029] : Figure numerals: 100, fixing seat; 110, top plate; 111, notch; 112, guide groove; 120, support rod; 130, bottom plate; 140, placement cavity; 150, through hole; 200, fixing piece; 210, fixed end; 211, first side wall; 212, second side wall; 213, first bolt; 215, first screw hole; 216, second screw hole; 220, movable end; 230, sliding groove; 250, first locking piece; 260, second locking piece; 270, adjusting pad; 300, vacuum arc chamber; 310, moving end; 311, plane; 400, supporting seat. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] In the structure of vacuum interrupter, bellows is an important sealing component. The bellows can not only isolate the vacuum state inside the vacuum interrupter from the external atmospheric state, but also enable the moving contact and the moving conductive rod to move within a specified range to complete the closing and breaking operations of the vacuum switch. However, the disadvantage of the bellows is that it cannot withstand large torque. Large torque will damage the welding part of the bellows, which will cause leakage in the vacuum interrupter. Therefore, during the assembly process of the vacuum interrupter, measures should be taken to prevent the bellows connected to the moving end of the interrupter from twisting.

[0037] The moving end of the vacuum interrupter is usually provided with threads and connected to other parts by bolts. In the related technology, one person needs to hold the tool to fix the moving end of the interrupter, and the other person needs to tighten the fixing bolts of the moving end of the vacuum interrupter. That is, at least two assembly personnel are required to cooperate. In addition, the moving end of the interrupter cannot be guaranteed not to be twisted during the assembly process, and the assembly process is complicated.

[0038] See also Figure 1-Figure 4, an assembly and fixing tool for a vacuum interrupter 300 provided in one embodiment of the present application, the assembly and fixing tool comprises a fixing seat 100, a fixing member 200 and a first locking member 250. The fixing seat 100 has a placement cavity 140 and a through hole 150 connected to the placement cavity 140, the placement cavity 140 is used to place the vacuum interrupter 300, and the through hole 150 is configured to allow the movable end 310 of the vacuum interrupter 300 to extend out of the placement cavity 140; the fixing member 200 is arranged on the fixing seat 100, and the fixing member 200 has a fixed end 210 and a movable end 220, the fixed end 210 is used to be fixedly connected to the movable end 310 of the vacuum interrupter 300, and the movable end 220 can move relative to the fixing seat 100; the first locking member 250 is used to lock the movable end 220 with the fixing seat 100.

[0039] During assembly, the vacuum interrupter 300 is first placed in the placement cavity 140, and then the movable end 220 of the fixing member 200 is moved so that the fixed end 210 of the fixing member 200 is fixed to the fixing seat 100. When the position of the fixed end 210 is determined, the position of the movable end 220 on the fixing seat 100 is also determined, and then the movable end 220 is fixed by the first locking member 250, so that the vacuum interrupter 300 can be fixed, and then the movable end 310 of the vacuum interrupter 300 can be connected to other parts. That is, the vacuum interrupter 300 can be fixed by the assembly and fixing tool of the present application, and there is no need for the assembler to manually fix the movable end 310 of the interrupter, so that the assembly of the vacuum interrupter 300 is simple. The moving end 310 is fixed to the fixed end 210 of the fixing member 200, and the fixing member 200 is fixedly connected to the fixing seat 100, that is, the moving end 310 is fixed. When the moving end 310 is connected to other components, the moving end 310 can be prevented from rotating to prevent a large torque from damaging the welding part of the bellows, thereby causing leakage in the vacuum arc chamber 300.

[0040] In some embodiments, the fixed end 210 has a first fixing portion and a second fixing portion that are spaced apart from each other, and the first fixing portion and the second fixing portion are respectively used to clamp the movable end 310 at two opposite sides of the movable end 310 .

[0041] In some embodiments, the first fixing portion includes a first side wall 211 and a first bolt 213. The first side wall 211 is respectively provided with a first screw hole 215. The first bolt 213 is used to pass through the first screw hole 215 to abut against one side of the movable end 310, and the second side wall 212 is used to abut against the other side of the movable end.

[0042] In some other embodiments, the second fixing portion includes a second side wall 212 and a second bolt 214, and a second screw hole 216 is respectively opened on the second side wall 212. The first side wall 211 is used to abut against one side of the moving end, and the second bolt 214 is used to pass through the second screw hole 216 to abut against the other side of the moving end 310.

[0043] In some other embodiments, the first fixing portion includes a first side wall 211 and a first bolt 213, and the first side wall 211 is respectively provided with a first screw hole 215, and the first bolt 213 is used to pass through the first screw hole 215 to abut against one side of the movable end 310; the second fixing portion includes a second side wall 212 and a second bolt 214, and the second side wall 212 is respectively provided with a second screw hole 216, and the second bolt 214 is used to pass through the second screw hole 216 to abut against the other side of the movable end 310.

[0044] Of course, the first fixing portion and the second fixing portion may be able to move closer to or farther from each other along the radial direction of the movable end, such as two clamps at the front end of a wrench.

[0045] In some embodiments, a sliding groove 230 is formed on the fixing member 200 . The sliding groove 230 extends from the movable end 220 to the fixed end 210 . The first locking member 250 can slide in the sliding groove 230 .

[0046] In this embodiment, the first locking member 250 can be a bolt or an elastic locking member, and the first locking member 250 can slide in the sliding groove 230 to facilitate the installation of the vacuum interrupter 300. Specifically, taking the first locking member 250 as a bolt as an example, the first locking member 250 passes through the sliding groove 230 and the fixing seat 100 to fix the movable end 220 to the fixing seat 100. When disassembling the vacuum interrupter 300, first remove the second locking member 260 and loosen the first locking member 250 at the same time, and then move the fixing member 200 outward along the radial direction of the vacuum interrupter 300 until the first side wall 211 and the second side wall 212 of the fixed end 210 are completely separated from the movable end 310, and then the vacuum interrupter 300 can be taken out of the placement cavity 140. When installing the vacuum arc chamber 300, first place the vacuum arc chamber 300 in the placement cavity 140; then push the movable end 220 from the outside to the inside so that the first side wall 211 and the second side wall 212 clamp the movable end 310 from both sides of the movable end 310 respectively; finally, fix the movable end 220 to the fixed seat 100 through the first locking piece 250.

[0047] That is, the first locking member 250 can slide in the sliding groove 230 , so that during the installation and removal of the vacuum interrupter 300 , there is no need to remove the movable end 220 of the fixing member 200 , and only the first locking member 250 needs to be loosened, which makes the installation convenient and simple.

[0048] Of course, when the first locking piece 250 is an elastic locking piece, the locking of the movable end 220 and the fixed seat 100 is achieved through elastic force, and the installation and disassembly process of the vacuum arc chamber 300 is similar to the installation and disassembly process when the first locking piece 250 is a screw.

[0049] In some embodiments, the assembly and fixing tool further includes an adjusting pad 270 , and the adjusting pad 270 is disposed between the movable end 220 and the fixing seat 100 , and the adjusting pad 270 is used to adjust the height of the movable end 220 .

[0050] In this embodiment, the adjusting pad 270 is used to adjust the height of the movable end 220 to adapt to vacuum interrupter chambers 300 of different heights.

[0051] In some embodiments, there are multiple adjusting pads 270 , each of which has a different thickness, and the multiple adjusting pads 270 are selectively disposed between the movable end 220 and the fixing seat 100 .

[0052] In the present embodiment, the thickness of each of the adjusting pads 270 is different, and the corresponding adjusting pads 270 can be selected according to the height of the vacuum arc extinguishing chamber 300. Specifically, a through hole is provided on the adjusting pad 270, and the first locking member 250 is used to pass through the movable end 220, the adjusting pad 270 and the fixing seat 100 in sequence to fix the three. Of course, it is also possible that the size of the adjusting pad 270 is smaller than the size of the movable end 220, so that the first locking member 250 can avoid the adjusting pad 270, so as to directly fix the movable end 220 and the fixing seat 100 from the peripheral side of the adjusting pad 270. In the present embodiment, the first locking member 250 is a bolt, and the number of the bolts is two.

[0053] In some other embodiments, the height of the adjusting pad 270 can be adjusted. For example, the adjusting pad 270 includes an upper plate and a lower plate. A lifting mechanism is provided between the upper plate and the lower plate. The lifting mechanism is used to change the distance between the upper plate and the lower plate, thereby adjusting the height of the adjusting pad 270.

[0054] In other embodiments, the height of the fixing base 100 may be adjustable, so that the height of the fixing base 100 can be adjusted to accommodate vacuum interrupter chambers 300 of different heights.

[0055] In some embodiments, the fixing seat 100 includes a bottom plate 130, a top plate 110, and at least two support rods 120. The top plate 110 and the bottom plate 130 are arranged opposite to each other in the vertical direction; at least two support rods 120 connect the bottom plate 130 with the top plate 110 at the outer peripheral sides of the top plate 110 and the bottom plate 130, and the top plate 110, the support rods 120, and the bottom plate 130 are used to enclose the placement cavity 140, and the through hole 150 is opened on the top plate 110.

[0056] In this embodiment, the number of the support rods 120 may be two or more. In this embodiment, the number of the support rods 120 is four, and the four support rods 120 are evenly arranged between the top plate 110 and the bottom plate 130. The vacuum interrupter 300 is placed on the bottom plate 130, and the moving end 310 of the vacuum interrupter 300 extends out of the through hole 150 on the top plate 110. The fixing member 200 is arranged on the fixing seat 100, and is used to fix the moving end 310 of the vacuum interrupter 300.

[0057] Furthermore, the support plate includes a bare rod segment and screw segments respectively arranged at both ends of the bare rod segment, and the outer diameter of one of the screw segments is larger than the outer diameter of the bare rod segment, so that the nut can pass through the bare rod segment and enter the screw segment with a larger outer diameter; the diameter of the other screw segment is smaller than the diameter of the bare rod segment, and at the same time, the mounting hole on the top rod is smaller than the outer diameter of the bare rod segment, so that the bare rod segment supports the top plate 110, and corresponding nuts are respectively arranged on the top plate 110 and the bottom plate 130 to achieve locking of the top plate 110 and the bottom plate 130.

[0058] Furthermore, the top plate 110 is an arc-shaped structure, and a notch 111 is provided on one side of the top plate 110 along the circumferential direction. The notch 111 is configured to allow the vacuum interrupter 300 to enter the placement cavity 140 through the notch 111 .

[0059] In this embodiment, the vacuum interrupter 300 is used to enter the placement cavity 140 from the notch 111, so as to facilitate the placement of the vacuum interrupter 300 and further facilitate the installation of the vacuum interrupter 300.

[0060] Furthermore, an arc-shaped guide groove 112 is formed on the top plate 110 , and the first locking member 250 is used to move along the arc-shaped guide groove 112 .

[0061] In this embodiment, the first locking piece 250 is used to move along the arc-shaped guide groove 112, that is, the movable end 220 moves along the circumference of the top plate 110 so as to be fixed to the top plate 110 at any position. When the vacuum arc chamber 300 is placed in the placement groove, there is no need to rotate the angle of the vacuum arc chamber 300. As long as the curvature of the arc-shaped guide groove 112 is greater than 180 degrees, the vacuum arc chamber 300 can be fixed at any position.

[0062] In some embodiments, the assembly and fixing tool includes a third locking piece, and the third locking piece is used to connect the static end of the vacuum interrupter 300 with the bottom plate 130 .

[0063] In some embodiments, a support base 400 is further provided at the bottom of the fixing base 100, the third locking member is a bolt, and the static end of the bottom of the vacuum interrupter 300 is connected to the bottom plate 130 by the bolt. The support base 400 is used to support the fixing base 100 so that the bolt can pass through the bottom plate 130 from the bottom of the bottom plate 130 and connect to the static end.

[0064] In some other embodiments, a support base 400 is fixed on the bottom plate 130 , and the static end of the vacuum interrupter 300 is fixedly connected to the support base 400 .

[0065] An embodiment of the present application further provides a vacuum arc extinguishing chamber 300 , which has a moving end 310 , and an outer wall of the moving end 310 has a plane 311 , and the first fixing portion and / or the second fixing portion abuts against the plane 311 to enhance the fixing effect on the moving end 310 .

[0066] 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.

[0067] 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 vacuum interrupter (300) assembly and fixing tool, characterized in that: The assembly and fixing tooling comprises: A fixing seat (100) having a placement cavity (140) and a through hole (150) communicating with the placement cavity (140), wherein the placement cavity (140) is used to arrange the vacuum interrupter (300), and the through hole (150) is configured to allow a moving end (310) of the vacuum interrupter (300) to extend out of the placement cavity (140); A fixing member (200) is arranged on the fixing seat (100), the fixing member (200) having a fixed end (210) and a movable end (220), the fixed end (210) being used for fixed connection with the movable end (310) of the vacuum interrupter (300), and the movable end (220) being movable relative to the fixing seat (100); and The first locking member (250) is used to lock the movable end (220) and the fixing seat (100).

2. The assembly and fixing tool for the vacuum interrupter (300) according to claim 1, characterized in that: The fixed end (210) comprises a first fixing portion and a second fixing portion which are arranged at an interval, and the first fixing portion and the second fixing portion are respectively used to clamp the movable end (310) at two opposite sides of the movable end (310).

3. The assembly and fixing tool for the vacuum interrupter (300) according to claim 2, characterized in that: The first fixing portion comprises a first side wall (211) and a first bolt (213); the first side wall (211) is respectively provided with a first screw hole (215); the first bolt (213) is used to pass through the first screw hole (215) to abut against one side of the movable end (310); And / or, the second fixing portion includes a second side wall (212) and a second bolt (214), the second side wall (212) is respectively provided with a second screw hole (216), and the second bolt (214) is used to pass through the second screw hole (216) to abut against the other side of the movable end (310).

4. The assembly and fixing tool for the vacuum interrupter (300) according to claim 1, characterized in that: The fixing member (200) is provided with a sliding groove (230), the sliding groove (230) extending from the movable end (220) to the fixed end (210), and the first locking member (250) is capable of sliding in the sliding groove (230).

5. The assembly and fixing device for the vacuum interrupter (300) according to claim 1, characterized in that: The assembly and fixing tool further comprises an adjusting pad (270), wherein the adjusting pad (270) is arranged between the movable end (220) and the fixing seat (100), and the adjusting pad (270) is used to adjust the height of the movable end (220).

6. The assembly and fixing tool for the vacuum interrupter (300) according to claim 5, characterized in that: There are a plurality of adjusting pads (270), each of which has a different thickness, and the plurality of adjusting pads (270) are selectively arranged between the movable end (220) and the fixing seat (100).

7. The assembly and fixing tool for the vacuum interrupter (300) according to claim 1, characterized in that: The fixing seat (100) comprises: Bottom plate (130); A top plate (110) disposed opposite to the bottom plate (130); At least two support rods (120) have one end connected to the outer peripheral side of the top plate (110) and the other end connected to the outer peripheral side of the bottom plate (130); the top plate (110), the support rods (120) and the bottom plate (130) are used to enclose the placement cavity (140); and the through hole (150) is opened on the top plate (110).

8. The assembly and fixing tool for the vacuum interrupter (300) according to claim 7, characterized in that: The top plate (110) is an arc-shaped structure, and a notch (111) is provided on one side of the top plate (110) along the circumferential direction, and the notch (111) is configured to allow the vacuum interrupter (300) to enter the placement cavity (140) through the notch (111).

9. The assembly and fixing tool for the vacuum interrupter (300) according to claim 5, characterized in that: The fixing seat (100) is provided with a guide groove (112) with an arc structure, and the first locking member (250) is capable of moving along the guide groove (112).

10. A vacuum interrupter (300), the vacuum interrupter (300) being used to be fixed by the assembly and fixing tool according to any one of claims 1 to 9, characterized in that: The vacuum interrupter (300) has a moving end (310), and a plane (311) is provided on the outer side wall of the moving end (310).

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