Anti-twist vacuum arc-extinguishing chamber
By introducing anti-torsion grooves and pin structures into the vacuum arc extinguishing chamber, the gas leakage problem caused by the rotation of the conductive rod during installation is solved, and the stable connection and insulation performance of the conductive rod are improved.
Patent Information
- Application Number
- CN202421992126.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-16
AI Technical Summary
During the installation process, the existing vacuum arc extinguishing chamber is prone to gas leakage due to excessive torque, and the surface is smooth and cannot be applied, which affects the connection stability.
An anti-torsion groove and anti-torsion block structure is designed to insert the slide groove and slot through a pin to prevent the conductive rod from rotating, and provide a support point through the resistance portion to facilitate the application of torque.
It prevents the conductive rod from rotating, ensures stable connections, and enhances the insulation performance of the vacuum arc extinguishing chamber.
Smart Images
Figure CN223079034U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vacuum interrupter chambers, in particular to an anti-twist vacuum interrupter chamber. Background Art
[0002] The vacuum interrupter, also known as the vacuum switch tube, is the core component of medium and high voltage power switches. Its main function is to quickly extinguish the arc and suppress the current after the medium and high voltage circuit is cut off from the power supply through the excellent insulation of the vacuum inside the tube, so as to avoid accidents and unexpected events. It is mainly used in power transmission and distribution control systems, as well as in power distribution systems in metallurgy, mining, petroleum, chemical industry, railways, broadcasting, communications, industrial high-frequency heating, etc.
[0003] During the installation process of the existing vacuum interrupter, the moving conductive rods and the static conductive rods may cause gas leakage inside the vacuum interrupter due to excessive torque, thereby reducing the insulation performance. In addition, the surface of the vacuum interrupter is relatively smooth, and torque cannot be applied to the vacuum interrupter, so it is impossible to ensure the stable connection between the vacuum interrupter and the operating mechanism. Therefore, the applicant has made a beneficial design and found a solution to the above-mentioned problem. The technical solution to be introduced below is produced in this context. Summary of the invention
[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned traditional vacuum interrupter design and provide a product with anti-twist function and convenient for applying torque.
[0005] To solve the above problems, the utility model adopts the following technical solutions.
[0006] A twist-proof vacuum arc extinguishing chamber comprises a shell, wherein two ends of the shell are provided with a dynamic guide sleeve and a static guide sleeve, the dynamic guide sleeve is provided with a fixed sleeve, the fixed sleeve is slidably provided with a dynamic conductive rod, the static guide sleeve is provided with a static conductive rod, the fixed sleeve and the static guide sleeve are both provided with an anti-twist groove, both sides of the anti-twist groove are provided with limiting parts, the anti-twist groove is provided with an anti-twist block, both sides of the anti-twist block are provided with a resistance part, the anti-twist block is provided with a making way groove for making way for the limiting part, both sides of the dynamic conductive rod are provided with sliding grooves, both sides of the static conductive rod are provided with slots, both sides of the anti-twist block are provided with pins, and are inserted in the sliding grooves and the slots.
[0007] Preferably, the clearance groove is provided with a fixing through hole.
[0008] Preferably, the latch is inserted into the fixing through hole, the latch is provided with a grabbing portion, protrusions are provided on both sides of the latch and abut against the side walls of the fixing through hole, and the protrusions are provided with inclined surfaces.
[0009] Preferably, the dynamic conductive rod and the static conductive rod are provided with thread grooves.
[0010] Beneficial effects:
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] In the present utility model, by inserting the plug pins into the sliding grooves and slot holes, rotation of the moving conductive rod and the static conductive rod during the connection with the operating mechanism is prevented. The abutting portion provides a support point for the wrench, facilitating the application of torque to the vacuum interrupter or the conductive rod of the operating mechanism, so that the product has the advantages of anti-twisting and facilitating the application of torque. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 FIG. is a schematic side sectional structure view of an anti-twisting vacuum interrupter of the present utility model;
[0014] Figure 2 For the present utility model Figure 1 Local enlarged view A of an anti-twisting vacuum interrupter;
[0015] Figure 3 For the present utility model Figure 1 Local enlarged view B of an anti-twisting vacuum interrupter;
[0016] Figure 4 FIG. is an exploded view of an anti-twisting vacuum interrupter of the present utility model Figure 1 ;
[0017] Figure 5 For the present utility model Figure 4 Local enlarged view C of an anti-twisting vacuum interrupter;
[0018] Figure 6 FIG. is an exploded view of an anti-twisting vacuum interrupter of the present utility model Figure 2 ;
[0019] Figure 7 For the present utility model Figure 6 Local enlarged view D of an anti-twisting vacuum interrupter;
[0020] The corresponding relationship between the reference numerals in the drawings and the component names is as follows:
[0021] Reference numerals: 1, housing; 2, moving guide sleeve; 3, static guide sleeve; 4, anti-twisting groove; 5, anti-twisting block; 6, plug pin; 7, threaded groove; 21, fixing sleeve; 22, moving conductive rod; 221, sliding groove; 31, static conductive rod; 311, slot hole; 41, limiting portion; 51, relief groove; 52, abutting portion; 53, fixing through hole; 61, grasping portion; 62, convex block; 63, inclined surface. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0024] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0025] Reference example Figures 1 to 7 A twist-proof vacuum interrupter comprises a shell 1, a moving guide sleeve 2 and a static guide sleeve 3 are arranged at both ends of the shell 1, the moving guide sleeve 2 is provided with a fixed sleeve 21, the fixed sleeve 21 is provided with a moving conductive rod 22, the static guide sleeve 3 is provided with a static conductive rod 31, the fixed sleeve 21 and the static guide sleeve 3 are both provided with an anti-twist groove 4, both sides of the anti-twist groove 4 are provided with a limiting portion 41, the anti-twist groove 4 is provided with an anti-twist block 5, both sides of the anti-twist block 5 are provided with a resisting portion 52, the anti-twist block 5 is provided with a giving groove 51 which gives way to the limiting portion 41, both sides of the moving conductive rod 22 are provided with a slide groove 221, and the static conductive rod 22 is provided with a slide groove 221. Slots 311 are provided on both sides of the conductive rod 31, and latches 6 are provided on both sides of the anti-twist block 5 and inserted into the slide groove 221 and the slot 311. During the opening process, the movable conductive rod 22 will move and separate from the static conductive rod 31. Therefore, the latch 6 will move in the slide groove 221. By inserting the latch 6 into the slide groove 221 and the slot 311, the movable conductive rod 22 and the static conductive rod 31 are prevented from rotating during the connection process with the operating mechanism. The abutment portion 52 provides a support point for the wrench, so that torque is easily applied to the vacuum interrupter or the conductive rod of the operating mechanism.
[0026] It is worth mentioning that the clearance groove 51 is provided with a fixing through hole 53, which provides a guide for the latch 6 and provides a receiving space for the latch 6. When the latch 6 is inserted into place, the latch 6 is flush with the surface of the clearance groove 51.
[0027] It is worth mentioning that the bolt 6 is inserted into the fixed through hole 53. The bolt 6 is provided with a grasping portion 61. Both sides of the bolt 6 are provided with bumps 62, which abut against the side wall of the fixed through hole 53. The bumps 62 are provided with inclined surfaces 63. The bumps 62 connect and fix the bolt 6 to the fixed through hole 53 in an interference fit manner. The inclined surfaces 63 facilitate the insertion of the bolt 6 into the fixed through hole 53, and the grasping portion 61 facilitates the removal of the bolt 6 from the fixed through hole 53;
[0028] It is worth mentioning that the moving conductive rod 22 and the static conductive rod 31 are provided with threaded grooves 7, which facilitate the threaded connection between the moving conductive rod 22, the static conductive rod 31 and the conductive rod of the operating mechanism.
[0029] Through the above design scheme, the product can achieve the advantages of anti-twisting effect and facilitating the application of torque.
[0030] The above content further elaborates on the present utility model in combination with specific implementation manners. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope determined by the claims submitted for the present utility model.
Claims
1. A torsion-proof vacuum interrupter, comprising a housing (1), wherein moving guide sleeves (2) and static guide sleeves (3) are provided at both ends of the housing (1), a fixed sleeve (21) is provided on the moving guide sleeve (2), a moving conductive rod (22) is slidably provided on the fixed sleeve (21), a static conductive rod (31) is provided on the static guide sleeve (3), and the characteristics are as follows: The fixed sleeve (21) and the static guide sleeve (3) are both provided with an anti-twist groove (4), and limiting portions (41) are provided on both sides of the anti-twist groove (4). The anti-twist groove (4) is provided with an anti-twist block (5), and abutment portions (52) are provided on both sides of the anti-twist block (5). The anti-twist block (5) is provided with a clearance groove (51) for making way for the limiting portion (41). The moving conductive rod (22) is provided with a sliding groove (221) on both sides, and the static conductive rod (31) is provided with a slot (311) on both sides. The anti-twist block (5) is provided with a latch (6) on both sides and is inserted into the sliding groove (221) and the slot (311).
2. The anti-torsion vacuum interrupter according to claim 1, wherein: The clearance groove (51) is provided with a fixing through hole (53).
3. The anti-torsion vacuum interrupter according to claim 2, wherein: The latch (6) is inserted into the fixing through hole (53), the latch (6) is provided with a gripping portion (61), protrusions (62) are provided on both sides of the latch (6) and abut against the side walls of the fixing through hole (53), and the protrusions (62) are provided with inclined surfaces (63).
4. The anti-twist vacuum interrupter according to claim 3, characterized in that: The moving conductive rod (22) and the static conductive rod (31) are provided with thread grooves (7).