Vacuum interrupter and assembling and fixing tool thereof

Abstract

The application 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 part and a first locking part. The fixing base is provided with a placing cavity and a through hole communicating with the placing cavity, the vacuum arc-extinguishing chamber is arranged in the placing cavity, and the through hole is configured to allow a movable end of the vacuum arc-extinguishing chamber to extend out of the placing cavity. The fixing part is arranged on the fixing base, and the fixing part is provided with a fixed end and a movable end, the fixed end is used for fixedly connecting with the movable end of the vacuum arc-extinguishing chamber, and the movable end can move relative to the fixing base. The first locking part is used for locking the movable end and the fixing base. The assembling and fixing tool can fix the vacuum arc-extinguishing chamber, the arc-extinguishing chamber movable end does not need to be manually fixed by an assembling personnel, and the assembling of the vacuum arc-extinguishing chamber is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of assembly of vacuum interrupters, in particular to a vacuum interrupter and an assembly and fixing tool thereof. BACKGROUND

[0002] A vacuum interrupter is a core component of a medium and high voltage power switch, and its main function is to rapidly extinguish an arc in its internal vacuum environment and suppress current, thereby avoiding accidents and incidents, and is mainly applied to power transmission and distribution systems, and has the characteristics of energy saving, explosion prevention, small size, long service life, reliable operation and no pollution. The vacuum interrupter is divided into a circuit breaker interrupter and a load switch interrupter according to its use, and the circuit breaker interrupter is mainly used in power department substations and power grid facilities, and the load switch interrupter is mainly used in terminal users of the power grid.

[0003] In the structure of the vacuum interrupter, a bellows is an important sealing component, and the bellows not only separates the vacuum state inside the vacuum interrupter from the atmospheric state outside, but also enables a moving contact to move together with a moving conducting rod within a specified range to complete closing and breaking operations of the vacuum switch. However, the bellows has the disadvantage of being unable to withstand a large torsion force, and a large torsion force will damage the welding of the bellows, thereby causing the vacuum interrupter to leak, so measures must be taken during assembly of the vacuum interrupter to prevent the bellows connected to the moving end of the vacuum interrupter from being twisted.

[0004] The moving end of the vacuum interrupter is usually provided with threads and is connected to other components by means of a bolt fixing method. In related assembly technology, one person holds a tool to fix the moving end of the vacuum interrupter, and another person tightens the fixing bolt of the moving end of the vacuum interrupter. That is, at least two assembly personnel are required to cooperate, and the moving end of the vacuum interrupter cannot be guaranteed not to be twisted during assembly, and the assembly process is complex. SUMMARY

[0005] Therefore, it is necessary to provide a vacuum interrupter and an assembly and fixing tool thereof to solve the problem of complex assembly of the vacuum interrupter.

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

[0007] a fixing seat having a placing cavity and a through hole in communication with the placing cavity, the placing cavity being configured to accommodate the vacuum interrupter, and the through hole being configured to allow a moving end of the vacuum interrupter to extend out of the placing cavity;

[0008] a fixing member provided on the fixing seat, the fixing member having a fixed end and a movable end, the fixed end being configured to be fixedly connected to the moving end of the vacuum interrupter, and the movable end being configured to be movable relative to the fixing seat; and

[0009] A first locking member is configured to lock the movable end with the fixed seat.

[0010] In one embodiment, the fixed end has a first fixed part and a second fixed part arranged at intervals, and the first fixed part and the second fixed part are respectively configured to clamp the movable end on two opposite sides of the movable end.

[0011] In one embodiment, the first fixed part comprises a first side wall and a first bolt, the first side wall is respectively provided with a first threaded hole, and the first bolt is configured to pass through the first threaded hole to abut against a plane on one side of the movable end.

[0012] In one embodiment, the second fixed part comprises a second side wall and a second bolt, the second side wall is respectively provided with a second threaded hole, and the second bolt is configured to pass through the second threaded hole to abut against a plane on the other side of the movable end.

[0013] In one embodiment, the fixed member is provided with a sliding groove extending from the movable end to the fixed end, and the first locking member is configured to slide in the sliding groove.

[0014] In one embodiment, the assembly fixing tool further comprises an adjusting pad arranged between the movable end and the fixed seat, and the adjusting pad is configured to adjust the height of the movable end.

[0015] In one embodiment, the number of adjusting pads is multiple, the thickness of each adjusting pad is different, and multiple adjusting pads are selectively arranged between the movable end and the fixed seat.

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

[0017] a bottom plate;

[0018] a top plate arranged opposite to the bottom plate;

[0019] at least two support rods, one end of each support rod is connected to the outer circumferential side of the top plate, and the other end of each support rod is connected to the outer circumferential side of the bottom plate, the top plate, the support rods and the bottom plate are configured to surround the placement cavity, and the through hole is arranged on the top plate.

[0020] In one embodiment, the top plate is an arc-shaped structure, the top plate is provided with a notch on one side in the circumferential direction, and the notch is configured to allow the vacuum interrupter to enter the placement cavity from the notch.

[0021] In one embodiment, the top plate is provided with an arc-shaped guide groove, and the first locking member is configured to move along the arc-shaped guide groove.

[0022] In one of the embodiments, the assembling and fixing tool comprises a third locking member for connecting the static end of the vacuum interrupter with the bottom plate.

[0023] A vacuum interrupter for assembling and fixing tool, the vacuum interrupter has a dynamic end, the dynamic end has a flat surface on its outer wall.

[0024] The vacuum interrupter and the assembling and fixing tool are used for assembling, first, the vacuum interrupter is arranged in the placing cavity, then the movable end of the fixing member is moved to fix the fixed end of the fixing member with 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, then the movable end is fixed by the first locking member, the vacuum interrupter is fixed, and the dynamic end of the vacuum interrupter is connected with other components. That is, the assembling and fixing tool can fix the vacuum interrupter, and the dynamic end of the vacuum interrupter is fixed by the assembling personnel, so that the assembling of the vacuum interrupter is simple. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the vacuum interrupter fixed in the assembling and fixing tool in one embodiment.

[0026] Figure 2 It is a structural schematic diagram of the assembling and fixing tool in Figure 1 with the support seat removed.

[0027] Figure 3 It is a structural schematic diagram of the fixing member in one embodiment.

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

[0029] Reference signs: 100, fixing seat; 110, top plate; 111, notch; 112, guide groove; 120, support rod; 130, bottom plate; 140, placing cavity; 150, through hole; 200, fixing member; 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 member; 260, second locking member; 270, adjusting pad; 300, vacuum interrupter; 310, dynamic end; 311, flat surface; 400, support seat. DETAILED DESCRIPTION

[0030] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such variations be considered as falling within the scope of the present application. It should be understood that the use of the terms "include", "comprise" or "contain" herein should not be understood as limiting the present application to the features or steps described herein, but rather the use of these terms is intended to cover the presence of the features or steps described herein as well as the presence of other features or steps not described herein.

[0031] In the description of the present application, it should be understood that, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0032] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can include at least one of the features explicitly or implicitly. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0033] In the present application, unless otherwise specifically defined and limited, if the terms "mount", "connect", "connect", "fix" and the like appear, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the present application, unless specifically stated and limited otherwise, if there is a description of a first feature "on" or "under" a second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "over", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower than the second feature in horizontal height.

[0035] It should be noted that if an element is referred to as being "fixed to" or "set to" another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0036] In the structure of the vacuum interrupter, the bellows is an important sealing component. The bellows not only separates the vacuum state inside the vacuum interrupter from the atmospheric state outside, but also enables the moving contact and the moving conducting rod to move within a specified range to complete the closing and breaking operations of the vacuum switch. However, the bellows has the disadvantage of being unable to withstand a large torsion force, which can damage the welding of the bellows and cause the vacuum interrupter to leak. Therefore, measures must be taken during assembly to prevent the bellows connected to the moving end of the vacuum interrupter from being twisted.

[0037] The moving end of the vacuum interrupter is usually provided with threads and is connected to other components by means of bolts. According to the related technology, one person holds a tool to fix the moving end of the vacuum interrupter, and another person tightens the fixing bolts of the moving end of the vacuum interrupter. That is, at least two assembly personnel are required to cooperate, and it cannot be guaranteed that the moving end of the vacuum interrupter will not be twisted during assembly. The assembly process is complex.

[0038] Referring to Figures 1-4The assembly fixing tool of the vacuum arc-extinguishing chamber 300 provided by an embodiment of the present application comprises a fixing base 100, a fixing piece 200, and a first locking piece 250. The fixing base 100 has a placing cavity 140 in which the vacuum arc-extinguishing chamber 300 is arranged, and a through hole 150 communicating with the placing cavity 140, the through hole 150 being configured to allow the movable end 310 of the vacuum arc-extinguishing chamber 300 to extend out of the placing cavity 140; the fixing piece 200 is arranged on the fixing base 100, and has a fixed end 210 and a movable end 220, the fixed end 210 is used to be fixedly connected with the movable end 310 of the vacuum arc-extinguishing chamber 300, and the movable end 220 is movable relative to the fixing base 100; the first locking piece 250 is used to lock the movable end 220 and the fixing base 100.

[0039] During assembly, first, the vacuum arc-extinguishing chamber 300 is arranged in the placing cavity 140, then the movable end 220 of the fixing piece 200 is moved to make the fixed end 210 of the fixing piece 200 fixed with the fixing base 100, when the position of the fixed end 210 is determined, the position of the movable end 220 on the fixing base 100 is also determined, then the movable end 220 is fixed by the first locking piece 250, so that the vacuum arc-extinguishing chamber 300 is fixed, and then the movable end 310 of the vacuum arc-extinguishing chamber 300 is connected with other components. That is, the assembly fixing tool of the present application can fix the vacuum arc-extinguishing chamber 300, without the need for an assembler to manually fix the movable end 310 of the arc-extinguishing chamber, so that the assembly of the vacuum arc-extinguishing chamber 300 is simple. The movable end 310 is fixed with the fixed end 210 of the fixing piece 200, and the fixing piece 200 is fixedly connected with the fixing base 100, that is, the movable end 310 is fixed, and when the movable end 310 is connected with other components, the movable end 310 can be prevented from rotating, so that a large torsion force does not damage the welding position of the bellows, and further cause the vacuum arc-extinguishing chamber 300 to leak.

[0040] In some embodiments, the fixed end 210 has a first fixing part and a second fixing part arranged at intervals, and the first fixing part and the second fixing part are respectively used to clamp the movable end 310 on two sides opposite to the position of the movable end 310.

[0041] In some embodiments, the first fixing part comprises a first side wall 211 and a first bolt 213, the first side wall 211 has a first screw hole 215 formed therein, 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, and a second side wall 212 is used to abut against the other side of the movable end.

[0042] In some embodiments, the second fixing part comprises a second side wall 212 and a second bolt 214, the second side wall 212 is provided with a second screw hole 216, and the first side wall 211 is used to abut one side of the movable end 310, and the second bolt 214 is used to pass through the second screw hole 216 to abut the other side of the movable end 310.

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

[0044] Of course, the first fixing part and the second fixing part can be close to or away from each other along the radial direction of the movable end, for example, the two clamps at the front end of the wrench.

[0045] In some embodiments, the fixing part 200 is provided with a sliding groove 230, the sliding groove 230 extends from the movable end 220 to the fixed end 210, and the first locking part 250 can slide in the sliding groove 230.

[0046] In this embodiment, the first locking part 250 can be a bolt or an elastic locking part, and the first locking part 250 can slide in the sliding groove 230 to facilitate the installation of the vacuum interrupter 300. Specifically, taking the first locking part 250 as a bolt as an example, the first locking part 250 passes through the sliding groove 230 and the fixed seat 100 to fixedly connect the movable end 220 and the fixed seat 100. When disassembling the vacuum interrupter 300, first, the second locking part 260 is removed, and then the first locking part 250 is loosened, and then the fixing part 200 is moved 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 interrupter 300, first, the vacuum interrupter 300 is placed in the placement cavity 140; then the movable end 220 is pushed from outside to 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; finally, the movable end 220 is fixed with the fixed seat 100 through the first locking part 250.

[0047] That is, the first locking part 250 can slide in the sliding groove 230, so that during the installation and disassembly of the vacuum interrupter 300, the movable end 220 of the fixing part 200 does not need to be disassembled, and only the first locking part 250 needs to be loosened, which is convenient and simple to install.

[0048] Of course, when the first locking member 250 is an elastic locking member, the locking of the movable end 220 and the fixed seat 100 is achieved by elastic force, and the mounting and dismounting process of the vacuum interrupter 300 is similar to that when the first locking member 250 is a screw.

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

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

[0051] In some embodiments, the number of the adjusting pads 270 is multiple, and the thickness of each adjusting pad 270 is different. The multiple adjusting pads 270 are selectively arranged between the movable end 220 and the fixed seat 100.

[0052] In the present embodiment, the thickness of each adjusting pad 270 is different, and the corresponding adjusting pad 270 can be selected according to the height of the vacuum interrupter 300. Specifically, a through hole is formed in the adjusting pad 270, and the first locking member 250 is used to sequentially pass through the movable end 220, the adjusting pad 270 and the fixed seat 100 to fix them. Of course, the size of the adjusting pad 270 can also be smaller than that of the movable end 220, so that the first locking member 250 can avoid the adjusting pad 270 to directly fix the movable end 220 and the fixed seat 100 from the 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 other embodiments, the height of the adjusting pad 270 can be adjusted. For example, the adjusting pad 270 comprises an upper plate and a lower plate, and a lifting mechanism is arranged 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 fixed seat 100 can also be adjusted, and the height of the fixed seat 100 is adjusted to adapt to vacuum interrupters 300 of different heights.

[0055] In some embodiments, the fixing base 100 comprises a bottom plate 130, a top plate 110, and at least two support rods 120. The top plate 110 is arranged opposite to the bottom plate 130 in a vertical direction; the at least two support rods 120 connect the bottom plate 130 and the top plate 110 at the outer circumferential 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 formed in the top plate 110.

[0056] In the present embodiment, the number of the support rods 120 can be two or more. In the present 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, the moving end 310 of the vacuum interrupter 300 extends out of the through hole 150 on the top plate 110, and the fixing member 200 is arranged on the fixing base 100 to fix the moving end 310 of the vacuum interrupter 300.

[0057] Further, the support plate comprises a light rod section and screw rod sections arranged at both ends of the light rod section respectively, and the outer diameter of one of the screw rod sections is greater than the outer diameter of the light rod section, so that the nut passes through the light rod section and enters the screw rod section with a larger outer diameter; the diameter of the other screw rod section is smaller than the diameter of the light rod section, and the mounting hole on the top rod is smaller than the outer diameter of the light rod section, so that the light rod section supports the top plate 110, and corresponding nuts are arranged on the top plate 110 and the bottom plate 130 to realize the locking of the top plate 110 and the bottom plate 130.

[0058] Further, the top plate 110 is in an arc structure, and a notch 111 is formed in a circumferential side of the top plate 110, and the notch 111 is configured to allow the vacuum interrupter 300 to enter the placement cavity 140 from the notch 111.

[0059] In the present embodiment, the vacuum interrupter 300 is used to enter the placement cavity 140 from the notch 111, thereby facilitating the placement of the vacuum interrupter 300, and further facilitating the installation of the vacuum interrupter 300.

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

[0061] In the present embodiment, the first locking member 250 is used to move along the arc-shaped guide groove 112, that is, the movable end 220 moves along the circumferential direction of the top plate 110 to be fixed with the top plate 110 at any position, and when the vacuum interrupter 300 is placed into the placement cavity 140, the angle of the vacuum interrupter 300 does not need to be turned, and as long as the arc degree of the arc-shaped guide groove 112 is greater than 180 degrees, the fixing of the vacuum interrupter 300 at any position can be realized.

[0062] In some embodiments, the assembly fixing tool comprises a third locking member for connecting the static end of the vacuum interrupter 300 with the bottom plate 130.

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

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

[0065] An embodiment of the present application further provides a vacuum interrupter 300, which has a moving end 310, and a plane 311 is arranged on the outer side wall of the moving end 310. The first fixing part and / or the second fixing part abut against the plane 311, so as to enhance the fixing effect on the moving end 310.

[0066] The technical features of the above-mentioned embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that they are within the scope of the present application.

[0067] The above-mentioned embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, however, it should not be understood as the limitation to the patent application scope. It should be pointed out that, for the ordinary skilled in the art, several modifications 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 patent protection scope of the present application should be subject to the appended claims.

Claims

1. An assembly fixture for a vacuum interrupter (300), characterized by, The assembly fixing tool comprises: a fixing base (100) having a placement cavity (140) in which the vacuum interrupter (300) is arranged and a through hole (150) communicating with the placement cavity (140), the through hole (150) being configured to allow the movable end (310) of the vacuum interrupter (300) to extend out of the placement cavity (140); a fixing member (200) arranged on the fixing base (100), the fixing member (200) having a fixed end (210) and a movable end (220), the fixed end (210) being used for fixedly connecting with the movable end (310) of the vacuum interrupter (300), and the movable end (220) being capable of moving relative to the fixing base (100); and a first locking member (250) for locking the movable end (220) and the fixing base (100). The assembly fixing tool further comprises an adjusting pad (270) arranged between the movable end (220) and the fixing base (100), the adjusting pad (270) being used for adjusting the height of the movable end (220).

2. The assembly fixture for the vacuum interrupter (300) according to claim 1, characterized in that, The fixed end (210) has a first fixing part and a second fixing part arranged at intervals, and the first fixing part and the second fixing part are respectively used for clamping the movable end (310) on two sides opposite to the position of the movable end (310).

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

4. The assembly fixture for the vacuum interrupter (300) according to claim 1, characterized in that, The fixing member (200) is provided with a 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 fixture for the vacuum interrupter (300) according to claim 1, characterized in that, The number of the adjusting pads (270) is multiple, the thickness of each adjusting pad (270) is different, and multiple adjusting pads (270) are selectively arranged between the movable end (220) and the fixing base (100).

6. The assembly fixture for the vacuum interrupter (300) according to claim 1, characterized in that, The fixing base (100) comprises: a bottom plate (130); a top plate (110) arranged opposite to the bottom plate (130); at least two support rods (120) connected to the outer circumferential side of the top plate (110) at one end and connected to the outer circumferential side of the bottom plate (130) at the other end, the top plate (110), the support rod (120) and the bottom plate (130) being used for surrounding to form the placement cavity (140), and the through hole (150) being arranged on the top plate (110).

7. The assembly fixture for the vacuum interrupter (300) according to claim 6, characterized in that, The top plate (110) is an arc-shaped structure, and a gap (111) is formed on one circumferential side of the top plate (110), and the gap (111) is configured to allow the vacuum interrupter (300) to enter the placement cavity (140) from the gap (111).

8. The assembly fixture for the vacuum interrupter (300) according to claim 1, characterized in that, A guide groove (112) in an arc-shaped structure is formed on the fixing seat (100), and the first locking member (250) is capable of moving along the guide groove (112).

9. A vacuum interrupter (300) for being fixed by the assembly fixing tool according to any one of claims 1-8, characterized in that, The vacuum interrupter (300) has a moving end (310), and a flat surface (311) is arranged on the outer side wall of the moving end (310).

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