High-voltage insulating sleeve for vacuum switch

Abstract

The utility model relates to vacuum switch technical field discloses a kind of high-voltage insulating bushings for vacuum switch, including bushing body, several umbrella skirts are equipped on bushing body, and one end of bushing body is connected with connecting pipe, connecting pipe is equipped with connecting lock mechanism, connecting lock mechanism includes multiple insertion rods, multiple through holes that pass through the pipe wall of connecting pipe are arranged in circumferential array on connecting pipe, sliding slot one is equipped in through hole, insertion rod is inserted and connected and is arranged in through hole, push plate that is slidably located in sliding slot one is equipped on the outer wall of insertion rod, spring one is sleeved on insertion rod, and the both ends of spring one respectively abut with push plate and the inner wall of sliding slot one, the outer side of connecting pipe is sleeved with the limit tube that can slide, the outer wall of bushing body away from connecting pipe one end is equipped with multiple insertion slots matched with insertion rod. The setting of connecting lock mechanism, insertion rod telescoping is controlled by limit tube, the quick disassembly of multiple bushing bodies is realized, and the disassembly efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum switch technology, specifically to a high-voltage insulating bushing for a vacuum switch. Background Technology

[0002] A vacuum switch is a switching device that uses vacuum as both an arc-extinguishing and insulating medium. The high-voltage insulating bushing is a crucial component for the vacuum switch to achieve its electrical functions and ensure safe and reliable operation. It reliably insulates the internal live conductors of the vacuum switch from ground potential, withstands the operating voltage of the equipment, and prevents phase-to-phase or phase-to-ground short circuits.

[0003] In the use of vacuum switches, in order to meet the requirements of higher voltage and equidistant spacing, multiple high-voltage insulating bushings are usually connected together. The most common connection method is flange connection, which is fastened by bolts and nuts. This method is inconvenient to disassemble and assemble and is time-consuming. Utility Model Content

[0004] (I) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to overcome the defects of inconvenient and time-consuming assembly and connection of the above-mentioned multiple bushings, and to provide a high-voltage insulating bushing for vacuum switches.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a high-voltage insulating bushing for a vacuum switch, comprising a bushing body, the bushing body having a plurality of umbrella skirts, a connecting pipe connected to one end of the bushing body, a connecting locking mechanism on the connecting pipe, the connecting locking mechanism including a plurality of insert rods, the connecting pipe having a plurality of through holes arranged in a circumferential array penetrating the wall of the connecting pipe, a sliding groove being provided in the through holes, the insert rods being inserted into the through holes, a push plate slidingly located in the sliding groove being provided on the outer wall of the insert rods, a spring being sleeved on the insert rods, the two ends of the spring abutting against the push plate and the inner wall of the sliding groove being respectively, a slidable limiting tube being sleeved on the outer side of the connecting pipe, and a plurality of slots adapted to the insert rods being provided on the outer wall of the bushing body at the end away from the connecting pipe.

[0008] As an improvement: a second groove is provided on the outer wall of the connecting pipe, and multiple second springs arranged in a circular array are connected in the second groove. A sliding plate with an annular structure matching the second groove is provided on the inner wall of the limiting pipe. The sliding plate is slidably disposed in the second groove and one side of the sliding plate abuts against one end of the second spring. The end of the insertion rod that contacts the limiting pipe has an arc-shaped structure.

[0009] As an improvement: the inner diameter of the connecting tube is adapted to the outer diameter of the sleeve body, and the number of the insertion rods and slots is the same, both being an even number.

[0010] As an improvement: the outer wall of the limiting tube is provided with several raised patterns, the inner wall of the limiting tube is embedded with a magnet one, and the outer wall of the connecting tube is embedded with a magnet two at a position corresponding to the magnet one. The magnet one and the magnet two are magnetically attracted to each other.

[0011] As an improvement: a sealing plug is provided inside the connecting pipe, the outer wall of the sealing plug has an inverted conical structure, and a sealing groove matching the sealing plug is provided at the other end of the sleeve body.

[0012] As an improvement: a positioning point one is provided on the outer wall of the sleeve body near the slot, and multiple positioning points two are provided on the outer wall of the connecting tube, which are the same number as the number of insertion rods and correspond to their positions.

[0013] (III) Beneficial Effects

[0014] The advantages of this utility model compared with the prior art are as follows:

[0015] Compared to traditional bolt and flange connections, the locking mechanism, with the insert rod connected by spring one inserted into the slot, ensures a stable and reliable engagement between the insert rod and the slot during connection, improving connection reliability. At the same time, the sliding limit tube connected by spring two allows for quick assembly and disassembly of the two sleeve bodies by simply operating the limit tube to control the extension and retraction of the insert rod. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a high-voltage insulating bushing for a vacuum switch according to this utility model.

[0017] Figure 2 yes Figure 1 A schematic diagram of the explosion structure.

[0018] Figure 3 yes Figure 2 A magnified schematic diagram of the local A structure.

[0019] Figure 4 yes Figure 1 A schematic diagram of the front view structure.

[0020] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure at point AA.

[0021] Figure 6 yes Figure 5 A magnified schematic diagram of the local B structure.

[0022] Figure 7 This is a schematic diagram of the connection status of a high-voltage insulating bushing for a vacuum switch according to this utility model.

[0023] [Explanation of Labels in the Attached Image]

[0024] 1. Sleeve body; 2. Connecting pipe; 3. Insert rod; 4. Through hole; 5. Slide groove one; 6. Push plate; 7. Spring one; 8. Limiting tube; 9. Slot; 10. Slide groove two; 11. Spring two; 12. Slide plate; 13. Magnet one; 14. Magnet two; 15. Sealing plug; 16. Sealing groove; 17. Positioning point one; 18. Positioning point two. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0026] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0027] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0028] Combined with appendix Figure 1 As shown, a high-voltage insulating bushing for a vacuum switch includes a bushing body 1, which is provided with a plurality of umbrella skirts. One end of the bushing body 1 is connected to a connecting pipe 2, which is provided with a connecting locking mechanism. The inner diameter of the connecting pipe 2 is adapted to the outer diameter of the bushing body 1.

[0029] Combined with appendix Figures 4 to 6 As shown, the connecting locking mechanism includes multiple insert rods 3. The connecting tube 2 has multiple through holes 4 arranged in a circumferential array, penetrating the wall of the connecting tube 2. A sliding groove 5 is provided in the through hole 4. The insert rod 3 is inserted into the through hole 4. A push plate 6 is provided on the outer wall of the insert rod 3 and is slidably located in the sliding groove 5. A spring 7 is sleeved on the insert rod 3. The two ends of the spring 7 abut against the push plate 6 and the inner wall of the sliding groove 5, respectively. A slidable limiting tube 8 is sleeved on the outer side of the connecting tube 2. The outer wall of the sleeve body 1 away from the connecting tube 2 has multiple slots 9 that are adapted to the insert rods 3. The inner diameter of the connecting tube 2 is adapted to the outer diameter of the sleeve body 1. The number of insert rods 3 and slots 9 is the same, both being an even number. In this practical application, four are used.

[0030] Meanwhile, to allow operators to more intuitively understand the alignment status of the insertion rod 3 and the slot 9, in conjunction with the attached... Figure 2As shown, a positioning point 17 is provided on the outer wall of the sleeve body 1 near the slot 9, and a number of positioning points 18 corresponding to the number of insertion rods 3 are provided on the outer wall of the connecting tube 2. Under the guidance of positioning point 17 and positioning point 18, the difficulty of aligning the insertion rods 3 with the slot 9 is reduced, making the operation simpler and clearer.

[0031] Among them, the combination of appendix Figure 2 and Figure 3 As shown, the outer wall of the connecting pipe 2 is provided with a sliding groove 10, and multiple springs 11 arranged in a circular array are connected in the sliding groove 10. The inner wall of the limiting pipe 8 is provided with a ring-shaped sliding plate 12 that matches the sliding groove 10. The sliding plate 12 is slidably disposed in the sliding groove 10 and one side of the sliding plate 12 abuts against one end of the spring 11. The limiting pipe 8 connected by the spring 11 can automatically return to its original position after operation. The end of the insertion rod 3 that contacts the limiting pipe 8 is an arc-shaped structure. The arc-shaped insertion rod 3 can easily bear force, thereby realizing the extension and retraction of the insertion rod 3.

[0032] When connecting the two sleeve bodies 1, first slide the limiting tube 8 upwards until the bottom of the limiting tube 8 slides above the through hole 4. At this time, the insertion rod 3 retracts into the through hole 4 under the action of spring 7. Insert one end of the sleeve body 1 into the connecting tube 2 of the other sleeve body 1. Then, rotate according to the indications of positioning point 17 and positioning point 28, so that positioning point 17 is aligned with any one of positioning point 28. Finally, withdraw the force applied to the limiting tube 8. The limiting tube 8 returns to its original position under the action of spring 211, and cooperates with the arc end of the insertion rod 3 to push the insertion rod 3 into the slot 9, thereby fixing and locking the two connected sleeve bodies 1. After the insertion rod 3 is inserted into the slot 9, it is locked by the limiting tube 8, ensuring a firm connection and reliable connection. The specific connection effect is as follows: Figure 7 As shown.

[0033] To ensure connection stability, in conjunction with the attached... Figure 1 As shown, the outer wall of the limiting tube 8 is provided with several raised textures, and a magnet 13 is embedded in the inner wall of the limiting tube 8. A magnet 24 is embedded in the outer wall of the connecting tube 2 at a position corresponding to the magnet 13. The magnet 13 and the magnet 24 are magnetically attracted to each other. When the limiting tube 8 is in operation, the position of the limiting tube 8 can be fixed by the magnetic effect between the magnet 13 and the magnet 24, ensuring a firm connection.

[0034] Further integration with appendix Figure 1 and Figure 5As shown, the connecting pipe 2 is provided with a sealing plug 15, the outer wall of the sealing plug 15 is an inverted conical structure, and the other end of the sleeve body 1 is provided with a sealing groove 16 that matches the sealing plug 15. The design with the inverted conical sealing plug 15 and the matching sealing groove 16 can achieve a reliable seal by utilizing the principle of conical surface mating, thereby preventing moisture, dust or leakage.

[0035] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high-voltage insulating bushing for a vacuum switch, comprising a bushing body (1), wherein the bushing body (1) is provided with a plurality of skirts, characterized in that: One end of the sleeve body (1) is connected to a connecting pipe (2), and the connecting pipe (2) is provided with a connection locking mechanism; The connecting locking mechanism includes multiple insert rods (3). The connecting tube (2) has multiple through holes (4) arranged in a circular array to penetrate the wall of the connecting tube (2). A sliding groove (5) is provided in the through hole (4). The insert rod (3) is inserted into the through hole (4). A push plate (6) is provided on the outer wall of the insert rod (3) and is slidably located in the sliding groove (5). A spring (7) is sleeved on the insert rod (3). The two ends of the spring (7) abut against the push plate (6) and the inner wall of the sliding groove (5) respectively. A sliding limiting tube (8) is sleeved on the outer side of the connecting tube (2). The outer wall of the sleeve body (1) away from the connecting pipe (2) is provided with multiple slots (9) that are adapted to the insertion rod (3).

2. The high-voltage insulating bushing for a vacuum switch according to claim 1, characterized in that: The outer wall of the connecting pipe (2) is provided with a sliding groove (10), and multiple springs (11) arranged in a circular array are connected in the sliding groove (10). The inner wall of the limiting pipe (8) is provided with a sliding plate (12) with an annular structure that matches the sliding groove (10). The sliding plate (12) is slidably disposed in the sliding groove (10) and one side of the sliding plate (12) abuts against one end of the spring (11). The end of the insert rod (3) that contacts the limiting pipe (8) has an arc-shaped structure.

3. The high-voltage insulating bushing for a vacuum switch according to claim 1, characterized in that: The inner diameter of the connecting pipe (2) is adapted to the outer diameter of the sleeve body (1), and the number of the insert (3) and the slot (9) is the same, both being an even number.

4. A high-voltage insulating bushing for a vacuum switch according to claim 2, characterized in that: The outer wall of the limiting tube (8) is provided with several raised patterns, and a magnet (13) is embedded in the inner wall of the limiting tube (8). A magnet (14) is embedded in the outer wall of the connecting tube (2) at a position corresponding to the magnet (13). The magnet (13) and the magnet (14) are magnetically attracted to each other.

5. A high-voltage insulating bushing for a vacuum switch according to claim 1, characterized in that: The connecting pipe (2) is provided with a sealing plug (15), the outer wall of the sealing plug (15) is an inverted conical structure, and the other end of the sleeve body (1) is provided with a sealing groove (16) that matches the sealing plug (15).

6. A high-voltage insulating bushing for a vacuum switch according to claim 3, characterized in that: The sleeve body (1) has a positioning point 1 (17) on the outer wall near the slot (9), and the connecting pipe (2) has multiple positioning points 2 (18) on the outer wall, which are the same number as the insertion rod (3) and correspond to each other in position.

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