High-hardness material vacuum arc-extinguishing chamber electrode device

Abstract

The utility model discloses a vacuum arc-extinguishing chamber electrode device made of high-hardness materials, which comprises a ceramic shell, one end of the ceramic shell is fixedly connected with a static cover plate, the static cover plate is fixedly connected with a static conducting rod, the other end of the ceramic shell is provided with an opening, a movable cover plate is arranged in the opening, a movable conducting rod is inserted in the movable cover plate, and the static conducting rod is fixedly connected with the static cover plate. A limiting sleeve is arranged in the ceramic shell, the movable conducting rod is slidably connected in the limiting sleeve in a sleeved mode, a through hole is formed in the movable cover plate, two arc-shaped clamping plates which are oppositely arranged are arranged in the through hole, an open groove is formed in the inner side wall of the through hole, an extension plate is slidably inserted in the open groove, and the arc-shaped clamping plates are arranged in the extension plate. One end of the extension plate is fixedly connected with the arc-shaped clamping plate, the extension plate is fixedly connected with a traction rod, and the movable cover plate is provided with a sliding chute. The vacuum arc-extinguishing chamber is convenient to replace and install the conducting rod, is convenient to operate, and improves the maintenance convenience of the vacuum arc-extinguishing chamber body.

Description

Technical Field

[0001] The utility model relates to the field of vacuum switch related products, in particular to a vacuum arc extinguishing chamber electrode device made of high hardness material. Background Art

[0002] The vacuum interrupter is a device used for high current and high voltage circuit breaking. It is mainly used to control and process arcs generated in various electrical equipment. It has the advantages of high automation and reliable function, and is widely used in power systems and industrial production.

[0003] The main structural parts of the vacuum interrupter are insulating shell, dynamic and static cover plates, contacts, bellows, shielding cover, dynamic and static conductive rods, guide sleeves, etc. Among them, the guide sleeve is fitted onto the dynamic conductive rod.

[0004] The movable conductive rod of the existing vacuum interrupter is mostly connected to the contact by welding. When the conductive rod needs to be replaced, it is difficult to assemble it, or even cannot be assembled smoothly, and the versatility is poor. Utility Model Content

[0005] The purpose of the utility model is to provide a vacuum arc chamber electrode device made of high-hardness material to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-hardness material vacuum arc chamber electrode device, comprising a ceramic shell, one end of the ceramic shell is fixedly connected to a static cover plate, the static cover plate is fixedly connected to a static conductive rod, the other end of the ceramic shell is provided with an opening, a movable cover plate is provided in the opening, a movable conductive rod is inserted in the movable cover plate, a limit sleeve is provided in the ceramic shell, the movable conductive rod is slidably sleeved in the limit sleeve, a through hole is provided on the movable cover plate, two arc-shaped clamping plates are arranged opposite to each other in the through hole, a groove is provided on the inner side wall of the through hole, and the opening is provided with a groove. An extension plate is slidably inserted in the groove, one end of the extension plate is fixedly connected to the arc clamping plate, the extension plate is fixedly connected to a traction rod, a sliding groove is provided on the movable cover plate, the traction rod is slidably inserted in the sliding groove, the movable cover plate is fixedly connected to a support plate, a rotating groove is provided on the support plate, a threaded rod is rotatably connected in the rotating groove, the thread rotation directions of the threaded rod on both sides of the center point of the horizontal axial section of the threaded rod are opposite, both ends of the threaded rod are threadedly sleeved with moving blocks, a connecting rod is rotatably connected between the moving block and the traction rod, and one end of the threaded rod passes through the rotating groove and is fixedly connected to the rotating block.

[0007] Preferably, a groove is provided on the top of the support plate, a sliding rod is fixedly connected in the groove, an L-shaped support plate is slidably sleeved on the sliding rod, one end of the L-shaped support plate is fixedly connected to a positioning plate, one side of the positioning plate is fixedly connected to a card block, and a plurality of card slots corresponding to the card block are provided on the outer wall of one side of the rotating block.

[0008] Preferably, a bellows is provided in the ceramic shell, and two ends of the bellows are fixedly connected to the inside of the ceramic shell and the limiting sleeve respectively.

[0009] Preferably, the side wall of the arc-shaped clamping plate is provided with a plurality of anti-slip grooves arranged in an inclined manner.

[0010] Preferably, both sides of the limiting sleeve are fixedly connected to the ceramic shell via an alignment plate.

[0011] Preferably, a spring is sleeved on the slide rod, and two ends of the spring are fixedly connected to the L-shaped support plate and the inner wall of the groove respectively.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The high-hardness material vacuum arc chamber electrode device is configured such that a moving conductive rod is inserted into a moving cover plate, and a rotating block is rotated to drive the threaded rod to rotate in a supporting plate. When the threaded rod rotates, two moving blocks threadedly sleeved thereon will move relatively to realize the movement of the connecting rod. At this time, the connecting rod will drive the traction rod to move, and at this time the traction rod will push the extension plate to move, and the extension plate will push the arc clamping plate to clamp and fix the moving conductive rod. When the moving conductive rod needs to be disassembled, the rotating block can be rotated in the opposite direction. The utility model is convenient for replacing and installing the conductive rod, and is easy to operate, thereby improving the convenience of maintaining the vacuum arc chamber body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a vacuum arc extinguishing chamber electrode device made of high hardness material according to the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of a moving cover plate of a vacuum arc extinguishing chamber electrode device made of a high-hardness material according to the utility model;

[0016] Figure 3 This is an enlarged view of point A of a vacuum arc extinguishing chamber electrode device made of high hardness material of the utility model.

[0017] In the figure: 1. Ceramic shell; 2. Static cover plate; 3. Static conductive rod; 4. Dynamic cover plate; 5. Dynamic conductive rod; 6. Limit sleeve; 7. Arc clamping plate; 8. Extension plate; 9. Pull rod; 10. Support plate; 11. Threaded rod; 12. Moving block; 13. Connecting rod; 14. Rotating block; 15. Sliding rod; 16. L-shaped support plate; 17. Positioning plate; 18. Block; 19. Bellows; 20. Alignment plate; 21. Spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-3, the utility model provides an embodiment: a high-hardness material vacuum arc chamber electrode device, including a ceramic shell 1, one end of the ceramic shell 1 is fixedly connected to a static cover plate 2, the static cover plate 2 is fixedly connected to a static conductive rod 3, the other end of the ceramic shell 1 is provided with an opening, a movable cover plate 4 is provided in the opening, a movable conductive rod 5 is inserted in the movable cover plate 4, a limiting sleeve 6 is provided in the ceramic shell 1, the movable conductive rod 5 is slidably sleeved in the limiting sleeve 6, a through hole is provided on the movable cover plate 4, two arc-shaped clamping plates 7 arranged oppositely are provided in the through hole, a groove is provided on the inner side wall of the through hole, an extension plate 8 is slidably inserted in the groove, one end of the extension plate 8 is fixedly connected to the arc-shaped clamping plate 7, a traction rod 9 is fixedly connected to the extension plate 8, a slide groove is provided on the movable cover plate 4, the traction rod 9 is slidably inserted in the slide groove, and a support plate 10 is fixedly connected to the movable cover plate 4 A rotating groove is provided on the support plate 10, and a threaded rod 11 is rotatably connected in the rotating groove. The threaded directions on both sides of the center point of the horizontal axial section of the threaded rod 11 are oppositely set. Moving blocks 12 are threadedly sleeved at both ends of the threaded rod 11, and a connecting rod 13 is rotatably connected between the moving block 12 and the traction rod 9. One end of the threaded rod 11 passes through the rotating groove and is fixedly connected with a rotating block 14. Specifically, the dynamic conductive rod 5 is inserted into the dynamic cover plate 4, and the threaded rod 11 is driven to rotate in the support plate 10 by rotating the rotating block 14. When the threaded rod 11 rotates, the two moving blocks 12 threadedly sleeved thereon will move relatively to realize the movement of the connecting rod 13. At this time, the connecting rod 13 will drive the traction rod 9 to move. At this time, the traction rod 9 will push the extension plate 8 to displace, and the extension plate 8 will push the arc clamping plate 7 to clamp and fix the dynamic conductive rod 5.

[0022] In this embodiment, a groove is provided on the top of the support plate 10, a slide bar 15 is fixedly connected in the groove, an L-shaped support plate 16 is slidably sleeved on the slide bar 15, one end of the L-shaped support plate 16 is fixedly connected to a positioning plate 17, one side of the positioning plate 17 is fixedly connected to a clamping block 18, and a plurality of clamping grooves corresponding to the clamping block 18 are provided on the outer wall of one side of the rotating block 14, and the clamping block 18 on the positioning plate 17 is clamped into the clamping groove on the rotating block 14 by sliding the L-shaped support plate 16 on the slide bar 15 to realize the rotation and fixation of the rotating block 14; A bellows 19 is provided in the shell 1, and the two ends of the bellows 19 are respectively fixedly connected to the inside of the ceramic shell 1 and the limit sleeve 6; the side wall of the arc-shaped clamping plate 7 is provided with a plurality of anti-slip grooves arranged in an inclined manner to increase the friction during clamping and improve the stability; both sides of the limit sleeve 6 are fixedly connected to the ceramic shell 1 through the alignment plate 20; a spring 21 is sleeved on the slide rod 15, and the two ends of the spring 21 are respectively fixedly connected to the L-shaped support plate 16 and the inner wall of the groove, and the resilience of the spring 21 can promote the stability of the block 18 in the slot. Working principle: first, insert the moving conductive rod 5 into the moving cover plate 4, and drive the threaded rod 11 to rotate in the support plate 10 by rotating the rotating block 14. When the threaded rod 11 rotates, the two moving blocks 12 threadedly sleeved thereon will move relative to each other to realize the movement of the connecting rod 13. At this time, the connecting rod 13 will drive the traction rod 9 to move. At this time, the traction rod 9 will push the extension plate 8 to move, and the extension plate 8 will push the arc clamping plate 7 to clamp and fix the moving conductive rod 5. When it is necessary to disassemble the moving conductive rod 5, rotate the rotating block 14 in the opposite direction.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A vacuum interrupter electrode device made of high-hardness material, comprising a ceramic housing (1), characterized in that: One end of the ceramic shell (1) is fixedly connected to a static cover plate (2), and a static conductive rod (3) is fixedly connected to the static cover plate (2). The other end of the ceramic shell (1) is provided with an opening, and a dynamic cover plate (4) is provided in the opening. A dynamic conductive rod (5) is inserted in the dynamic cover plate (4). A limiting sleeve (6) is provided in the ceramic shell (1), and the dynamic conductive rod (5) is slidably sleeved in the limiting sleeve (6). A through hole is provided on the dynamic cover plate (4), and two arc-shaped clamping plates (7) arranged opposite to each other are provided in the through hole. A groove is provided on the inner side wall of the through hole, and an extension plate (8) is slidably inserted in the groove. One end of the extension plate (8) is fixedly connected to the arc-shaped clamping plate (7). The extension plate (8) is fixedly connected with a traction rod (9), the movable cover plate (4) is provided with a slide groove, the traction rod (9) is slidably inserted in the slide groove, the movable cover plate (4) is fixedly connected with a support plate (10), the support plate (10) is provided with a rotation groove, a threaded rod (11) is rotatably connected in the rotation groove, the threaded rotation directions of the threaded rod (11) on both sides of the center point of the horizontal axial section are opposite, both ends of the threaded rod (11) are threadedly sleeved with a moving block (12), a connecting rod (13) is rotatably connected between the moving block (12) and the traction rod (9), and one end of the threaded rod (11) passes through the rotation groove and is fixedly connected with a rotating block (14).

2. A vacuum interrupter electrode device made of high hardness material according to claim 1, characterized in that: The top of the support plate (10) is provided with a groove, a slide rod (15) is fixedly connected in the groove, an L-shaped support plate (16) is slidably sleeved on the slide rod (15), one end of the L-shaped support plate (16) is fixedly connected to a positioning plate (17), one side of the positioning plate (17) is fixedly connected to a clamping block (18), and a plurality of clamping grooves corresponding to the clamping block (18) are provided on an outer wall of one side of the rotating block (14).

3. The high-hardness material vacuum interrupter electrode device according to claim 1, characterized in that: A bellows (19) is provided inside the ceramic shell (1), and two ends of the bellows (19) are respectively fixedly connected to the inside of the ceramic shell (1) and the limiting sleeve (6).

4. The high-hardness material vacuum interrupter electrode device according to claim 1, characterized in that: The side wall of the arc-shaped clamping plate (7) is provided with a plurality of anti-slip grooves arranged in an inclined manner.

5. The high-hardness material vacuum interrupter electrode device according to claim 1, characterized in that: Both sides of the limiting sleeve (6) are fixedly connected to the ceramic housing (1) via an alignment plate (20).

6. The high-hardness material vacuum interrupter electrode device according to claim 2, characterized in that: The slide bar (15) is sleeved with a spring (21), and two ends of the spring (21) are fixedly connected to the L-shaped support plate (16) and the inner wall of the groove respectively.

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