Special-shaped vacuum arc-extinguishing chamber aging pull-open tool

Abstract

The utility model belongs to the field of vacuum arc-extinguishing chambers, and discloses an aging pull-open tool for a special-shaped vacuum arc-extinguishing chamber. Comprising a backing ring, a supporting cylinder, a connector, a rotating unit, a handle and a fixing piece. The backing ring sleeves the lower end of the inner wall of the supporting cylinder, the connector is arranged at the upper end of the backing ring and sleeves the upper end of the inner wall of the supporting cylinder, the rotating unit is fixedly installed at the end, close to the connector, of the supporting cylinder, the handle is fixedly installed on the side, away from the backing ring, of the rotating unit, and the fixing part penetrates from one side of the connector to the other side of the connector. The supporting cylinder is provided with a fixing hole and a connecting hole, the connector is provided with at least two polygonal holes, the rotating unit comprises a connecting piece, a left cam and a right cam, and the technical problem that in the prior art, part of special-shaped vacuum arc extinguish chambers are of non-threaded structures, and contacts of the vacuum arc extinguish chambers cannot be separated is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum interrupter chambers and relates to an aging and opening tool for special-shaped vacuum interrupter chambers. Background Art

[0002] During the manufacturing process of vacuum interrupters, certain steps require the separation of a pair of contacts, such as during burn-in, insulation testing, and vacuum testing. This process requires the use of a fixture to separate the contacts. For conventional vacuum interrupters, this fixture is typically installed at one end of the chamber, threading the movable conductive rod of the vacuum interrupter into the separating fixture. This movement of the conductive rod, in turn, moves the contacts up and down, achieving contact separation. However, for some special-shaped vacuum interrupters, the movable conductive rod is not threaded, so conventional methods cannot be used. Utility Model Content

[0003] The purpose of the utility model is to provide a special-shaped vacuum interrupter aging and pulling tool to solve the technical problem in the prior art that some special-shaped vacuum interrupters are non-threaded structures and the vacuum interrupter contacts cannot be separated.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions to achieve them: a special-shaped vacuum arc chamber aging and pulling tool includes: a gasket, a support tube, a connecting head, a rotating unit, a handle and a fixing piece; the gasket is sleeved on the lower end of the inner wall of the support tube, the connecting head is arranged on the upper end of the gasket, and is sleeved on the upper end of the inner wall of the support tube, the rotating unit is fixedly installed on one end of the support tube close to the connecting head, the handle is fixedly installed on the side of the rotating unit away from the gasket, and the fixing piece passes from one side of the connecting head to the other side.

[0005] Furthermore, the support tube is provided with a fixing hole and a connecting hole; a plurality of the fixing holes are located in the same plane, a plurality of the connecting holes are located in the same plane, and the axes of the fixing holes and the axes of the connecting holes are perpendicular to each other.

[0006] Furthermore, the connector is provided with at least two polygonal holes; the polygonal holes are adapted to the connecting holes.

[0007] Furthermore, the rotating unit includes a cam assembly and a connecting piece; the connecting piece passes through the cam assembly and the fixing hole in sequence from the outside to the inside and is fixedly connected to the support tube.

[0008] Furthermore, the cam assembly includes a left cam and a right cam; the left cam is located on one side of the support tube, and the right cam is located on the other side of the support tube, and the left cam and the right cam are both movably connected to the support tube.

[0009] Furthermore, one end of the handle is fixedly connected to the left cam, and the other end is fixedly connected to the right cam.

[0010] Furthermore, the connecting holes and the polygonal holes are both waist-shaped holes.

[0011] Furthermore, the gasket is in the shape of an "X" and the connector is in the shape of an inverted "X"; the gasket, support tube and connector are all hollow structures.

[0012] Furthermore, the inner side wall of the support tube is threadedly connected to the outer side wall of the gasket ring.

[0013] Furthermore, the connecting member includes a first connecting member and a second connecting member; a first through hole is provided on the left cam, and a second through hole is provided on the right cam; the first connecting member passes through the first through hole and the fixing hole in sequence from the outside to the inside and is fixedly connected to the support tube, and the second connecting member passes through the second through hole and the fixing hole in sequence from the outside to the inside and is fixedly connected to the support tube.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects:

[0015] The utility model discloses a tool for aging and opening a special-shaped vacuum interrupter, comprising a gasket, a support tube, a connector, a rotating unit, a handle and a fixing part; the lower end of the support tube is sleeved on the outer wall of the gasket, the connector is arranged on the upper end of the gasket and sleeved on the upper end of the inner wall of the support tube, the rotating unit is fixedly mounted on the end of the support tube close to the connector, the handle is fixedly mounted on the side of the rotating unit away from the gasket, and the fixing part passes from one side of the connector to the other side. The moving conductive rod of the vacuum interrupter is connected to the gasket, and since the two ends of the handle are respectively connected to the left cam and the right cam, when the handle rotates, the left cam and the right cam are driven to move in the same direction, and the two connectors pass through the left cam and the right cam respectively and are fixedly connected to the connector, driving the connector to move up and down, thereby achieving the purpose of separating the contacts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a structural diagram of a special-shaped vacuum interrupter aging and opening tooling of the utility model;

[0018] Figure 2 This is a cross-sectional view of a special-shaped vacuum interrupter aging and opening tooling of the utility model;

[0019] Figure 3This is a cross-sectional view of the connection between the aging and pulling tooling of a special-shaped vacuum interrupter of the utility model and the vacuum interrupter;

[0020] Figure 4 This is a schematic structural diagram of the support tube in an embodiment of the present utility model;

[0021] Figure 5 Schematic diagram of the structure of the connector in the embodiment of the present invention.

[0022] Reference numerals:

[0023] 1-gasket; 2-support tube; 21-fixing hole; 22-connecting hole; 3-connecting head; 31-polygonal hole; 4-rotating unit; 41-connecting piece; 42 left cam; 43-right cam; 5-handle; 6-fixing piece. DETAILED DESCRIPTION

[0024] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the numbers used in this manner are interchangeable where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, methods, products, or apparatus.

[0026] The present invention is described in further detail below with reference to the accompanying drawings:

[0027] Example 1

[0028] The utility model provides a special-shaped vacuum interrupter aging and pulling tool, such as Figure 1 He Ru Figure 2As shown, it includes: a gasket 1, a support tube 2, a connector 3, a rotating unit 4, a handle 5, and a fixing member 6. The lower end of the support tube 2 is sleeved on the outer wall of the gasket 1, the connector 3 is located at the upper end of the gasket 1 and sleeved on the upper end of the inner wall of the support tube 2, the rotating unit 4 is fixedly mounted on the end of the support tube 2 close to the connector 3, the handle 5 is fixedly mounted on the side of the rotating unit 4 away from the gasket 1, and the fixing member 6 extends from one side of the connector 3 to the other side. The special-shaped vacuum interrupter aging and pulling tool is used to connect to the vacuum interrupter.

[0029] Specifically, the gasket 1 is in the shape of a cross, with the diameter of the upper end smaller than that of the lower end. The outer surface of the upper end of the gasket 1 is provided with a thread, and the inside of the gasket 1 is a hollow structure. The support tube 2 is in the shape of a circular ring, and the inner surface of the support tube 2 is threadedly connected to the outer surface of the upper end of the gasket 1, and the bottom end of the support tube 2 is in contact with the upper surface of the lower end of the gasket 1. Figure 4 As shown, the support tube 2 is provided with a fixing hole 21 and a connecting hole 22. The axis of the fixing hole 21 is parallel to the ground, and the axis of the connecting hole 22 is perpendicular to the ground. In this embodiment, there are two fixing holes 21, located in the same horizontal plane, and there are also two connecting holes 22, both located in the same horizontal plane. The fixing hole 21 is used for detachable connection with the connecting member 41. The connecting hole 22 coincides with the polygonal hole 31. In this embodiment, there are two polygonal holes 31, which need to be arranged in pairs, but can also be four. The four polygonal holes 31 facilitate the coincidence of the connector 3 with the connecting holes 22 on the support tube 2.

[0030] like Figure 5 As shown, the connector 3 is in the shape of an inverted "X" with the large end facing upward and the small end facing downward, and is located at the upper end of the gasket 1. The outer wall of the small end of the connector 3 engages with the inner wall of the upper end of the support tube 2, and the upper end surface of the support tube 2 abuts against the bottom of the large end of the connector 3. A plurality of polygonal holes 31 are provided on the side of the small end of the connector 3 facing the gasket 1. It should be noted that the polygonal holes 31 and the connection hole 22 are of the same shape and size. When the connector 3 is connected to the connection hole 22, ensure that the two symmetrically arranged polygonal holes 31 coincide with the connection hole 22.

[0031] like Figure 3As shown, the rotating unit 4 includes a connecting member 41, a left cam 42, and a right cam 43. The left cam 42 is arranged on one side of the side wall of the support tube 2, and the right cam 43 is arranged on the other side of the side wall of the support tube 2. The left cam 42 is provided with a first through hole, and the right cam 43 is provided with a second through hole. In this embodiment, the connecting member 41 is a shaft pin, and there are two connecting members 41. One connecting member passes from left to right through the first through hole of the left cam 42 and the fixing hole 21 of the support tube 2 to engage with the support tube 2, and the other connecting member passes from right to left through the second through hole of the right cam 43 and the fixing hole 21 of the support tube 2 to engage with the support tube 2. One side of the left cam 42 and the right cam 43 is always in contact with the bottom surface of the large end of the connector 3.

[0032] One end of the handle 5 is fixedly connected to the left cam 42, and the other end is fixedly connected to the right cam 43, with a curved shape in the middle. It should be noted that fixed connections include threaded connections, key connections, pin connections, interference fit connections, welding, and riveting. A threaded connection is a common fixed connection method, connecting two or more parts through the screwing of threads. This connection method has the advantages of simple structure, ease of manufacture and assembly, and ease of disassembly and adjustment. A key connection connects two parts together using a key, achieving axial fixation and torque transmission. Key connections are divided into four types: flat key connection, woodruff key connection, wedge key connection, and tangential key connection. Among them, woodruff keys, wedge keys, tangential keys, and ordinary flat keys and thin flat keys among flat keys are all fixed connections. Key connections have the advantages of simple structure, reliable operation, and easy assembly and disassembly. A pin connection connects two parts together using a pin to achieve fixation or positioning. Pin connections have the advantages of simple structure, ease of manufacture and assembly. An interference fit connection achieves connection through an interference fit between two parts. This connection method has the advantages of simple structure, high load capacity, and resistance to loosening. Welding involves heating two parts to fuse and connect them, achieving a fixed connection. Welding offers advantages such as high connection strength and good sealing, but it is not removable. Riveting involves connecting two parts with rivets, achieving a fixed connection. Riveting offers advantages such as reliable connection and high load-bearing capacity. The fixed connection here is welding, with one end of the handle 5 welded to the left cam 42 and the other end welded to the right cam 43.

[0033] like Figure 1 As shown, the fixing member 6 in this embodiment is a pull-out pin. The fixing member 6 is designed with a large end and a small end. The large end is arranged on the outer surface of the support tube 2, and the small end passes through another polygonal hole 31 from one polygonal hole 31 on the connecting head 3 and is fixed by an anti-slip member.

[0034] Finally, the gasket 1, support tube 2, connector 3, rotating unit 4, handle 5, and fixing part 6 are made of stainless steel, which has good corrosion resistance and high strength and hardness. When used for a long time in a humid environment, it can maintain the stability of its appearance and performance, is not easy to rust or corrode, can withstand greater external pressure and impact loads, and is not easy to deform or break.

[0035] Example 2

[0036] The utility model discloses a tool for opening and aging a special-shaped vacuum interrupter, comprising a gasket 1, a support tube 2, a connector 3, a rotating unit 4, a handle 5, and a fixing member 6. The support tube 2 is provided with a fixing hole 21 and a connecting hole 22, the connector 3 is provided with a polygonal hole 31, and the rotating unit 4 includes a connector 41 and a cam assembly, the cam assembly including a left cam 42 and a right cam 43. The handle 5 is forced to rotate by an external force. Since the handle is welded to the left cam 42 and the right cam 43, respectively, when the handle 5 rotates, the left cam 42 and the right cam 43 rotate in the same direction. Since the side walls of the left cam 42 and the connector 3 abut against the side walls of the right cam 43, the motion is transmitted to the connector 3. Since the left cam 42 and the right cam 43 are cams with curved profiles, the connector 3 can move up and down. In addition, the fixing member 6 is installed in the polygonal hole 31 on the connector 3 to limit the range of up and down movement.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A special-shaped vacuum interrupter aging and opening tool, characterized by: It comprises a gasket (1), a support tube (2), a connector (3), a rotating unit (4), a handle (5) and a fixing member (6); The gasket (1) is sleeved on the lower end of the inner wall of the support tube (2); the connecting head (3) is arranged on the upper end of the gasket (1) and sleeved on the upper end of the inner wall of the support tube (2); the rotating unit (4) is fixedly mounted on one end of the support tube (2) close to the connecting head (3); the handle (5) is fixedly mounted on the side of the rotating unit (4) away from the gasket (1); and the fixing member (6) passes from one side of the connecting head (3) to the other side.

2. The special-shaped vacuum interrupter aging and opening tool according to claim 1, characterized in that: The support cylinder (2) is provided with a fixing hole (21) and a connecting hole (22); The plurality of fixing holes (21) are located in the same plane, the plurality of connecting holes (22) are located in the same plane, and the axes of the fixing holes (21) and the axes of the connecting holes (22) are perpendicular to each other.

3. The special-shaped vacuum interrupter aging and opening tool according to claim 1, characterized in that: The connector (3) is provided with at least two polygonal holes (31); The polygonal hole (31) is adapted to the connecting hole (22).

4. The special-shaped vacuum interrupter aging and opening tool according to claim 2, characterized in that: The rotating unit (4) comprises a cam assembly and a connecting member (41); The connecting piece (41) passes through the cam assembly and the fixing hole (21) in sequence from the outside to the inside and is fixedly connected to the support tube (2).

5. The special-shaped vacuum interrupter aging and opening tool according to claim 4, characterized in that: The cam assembly includes a left cam (42) and a right cam (43); The left cam (42) is located on one side of the support cylinder (2), and the right cam (43) is located on the other side of the support cylinder (2). Both the left cam (42) and the right cam (43) are movably connected to the support cylinder (2).

6. The special-shaped vacuum interrupter aging and opening tool according to claim 5, characterized in that: One end of the handle (5) is fixedly connected to the left cam (42), and the other end is fixedly connected to the right cam (43).

7. The special-shaped vacuum interrupter aging and opening tool according to claim 3, characterized in that: The connecting hole (22) and the polygonal hole (31) are both waist-shaped holes.

8. The special-shaped vacuum interrupter aging and opening tool according to claim 1, characterized in that: The gasket (1) is in the shape of a Chinese character "X", and the connector (3) is in the shape of an inverted Chinese character "X". The gasket (1), support tube (2), and connector (3) all have hollow structures.

9. The special-shaped vacuum interrupter aging and opening tool according to claim 1, characterized in that: The inner side wall of the support cylinder (2) is threadedly connected to the outer side wall of the gasket ring (1).

10. The special-shaped vacuum interrupter aging and opening tool according to claim 5, characterized in that: The connecting member (41) comprises a first connecting member and a second connecting member; The left cam (42) is provided with a first through hole, and the right cam (43) is provided with a second through hole; The first connecting member passes through the first through hole and the fixing hole (21) in sequence from the outside to the inside and is fixedly connected to the support tube (2), and the second connecting member passes through the second through hole and the fixing hole (21) in sequence from the outside to the inside and is fixedly connected to the support tube (2).

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