Anti-accidental-touch high-insulativity high-voltage isolation switch
By designing a high-insulation high-voltage disconnector that can prevent accidental contact, and using the knife locking and sleeve locking structures, the safety hazards caused by accidental contact during the maintenance of the high-voltage disconnector are solved, ensuring safe operation.
Patent Information
- Application Number
- CN202422545127.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-22
AI Technical Summary
Existing high-voltage disconnectors are prone to accidental closure due to accidental contact during maintenance, posing a safety hazard.
A high-insulation, high-voltage disconnector with anti-accidental touch is designed, which prevents accidental operation by means of structures such as knife-pushing blocking block locking, sleeve locking rotating handle and locking block inserting into locking hole.
It effectively prevents the accidental collision of the switch blades, ensures the safety of maintenance personnel, and avoids life-threatening dangers caused by misoperation.
Smart Images
Figure CN223347682U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of high-voltage isolating switches, in particular to a high-insulation high-voltage isolating switch which can be prevented from accidental contact. Background Art
[0002] High-voltage disconnectors operate on a mechanical disconnect principle, either manually or electrically. When current flows through the high-voltage disconnector, the operating mechanism separates the moving and stationary contacts, opening or closing the circuit. Because disconnectors lack dedicated arc extinguishing devices, they cannot be used to disconnect normal composite power supplies, let alone short-circuit currents.
[0003] For general manual high-voltage disconnect switches, when maintenance personnel are repairing the circuit, the high-voltage isolation opening only has a protective structure at the rotating rod to prevent the high-voltage disconnect switch from closing by mistake. If this protective structure fails, if the personnel accidentally touch the high-voltage disconnect switch and the high-voltage disconnect switch is closed, it is easy to cause life-threatening danger. Utility Model Content
[0004] The purpose of the utility model is to provide a high-insulation, high-voltage disconnector with an anti-accidental-touch feature, so as to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above object, the present invention provides the following technical solution: a high-insulation, high-voltage disconnector with anti-accidental contact, comprising a mounting frame, an insulating column fixedly connected to the lower side of the mounting frame, a rotating piece fixedly connected to the front side of the insulating column, a knife blade connected to a rotating shaft outside the rotating piece, a mounting plate fixedly connected to the lower side of the rotating piece, a locking box fixedly connected to the upper part of the mounting plate, the locking boxes on both sides are arranged on both sides of the knife blade, a locking groove is defined inside the locking box, a locking block is slidably connected inside the locking groove, a sliding groove communicating with the locking groove is defined inside the locking box, a sliding rod is fixedly connected inside the sliding groove, the locking block is fixedly connected to the upper and lower sides of the end away from the knife blade with a connecting ear fixedly connected, the connecting ear is slidably connected to the outside of the sliding rod, a first spring is fixedly connected between the connecting ear and the sliding groove, the first spring is sleeved on the outside of the sliding rod, a locking hole for matching the locking block is defined inside the knife blade, a lifting rod is slidably connected to the mounting plate, a blocking block facing the locking block is fixedly connected to the upper part of the lifting rod, a second spring is fixedly connected between the blocking block and the mounting plate, and the second spring is sleeved on the outside of the lifting rod.
[0006] Preferably, a connecting groove communicating with the locking groove is provided on the front side of the locking box, and a pulling piece is fixedly connected to the front side of one end of the locking block away from the gate knife, and the pulling piece is slidably connected to the inside of the connecting groove.
[0007] Preferably, the lower portion of the lifting rod is fixedly connected to a limiting plate.
[0008] Preferably, the mounting frame is rotatably connected to a rotating shaft inside, a sleeve is slidably connected to the outside of one end of the rotating shaft, a rotating handle is fixedly connected to one end of the sleeve, two groups of embedded blocks are fixedly connected to the outside of the rotating shaft, an embedded groove is opened inside the sleeve, and the embedded blocks are slidably connected to the inside of the embedded groove.
[0009] Preferably, a third spring is fixedly connected between the rotating shaft and the inner wall of the sleeve, four groups of fixing rods are fixedly connected to the side of the sleeve close to the mounting frame, and four groups of fixing holes are opened on the outer side of the mounting frame.
[0010] Preferably, an outer limiting cylinder is fixedly connected to one side of the rotating shaft, and the outer limiting cylinder is sleeved on the outside of the third spring. An inner limiting rod is sleeved inside the other end of the third spring, and the inner limiting rod is fixedly connected to the inner wall of the sleeve.
[0011] Compared with the prior art, the beneficial effects of the present invention are:
[0012] 1. The utility model pushes the blocking block downward by the knife to ensure the knife is in a horizontal position. The first spring pulls the ear to drive the locking block to move along the locking groove, so that the locking block is inserted into the locking hole, further locking the position of the knife. It can further lock the disconnected knife to prevent the knife from being accidentally touched and causing it to close, thereby affecting the life safety of maintenance personnel;
[0013] 2. The utility model also realizes the switching of the knife switch by rotating the rotating handle and the sleeve driving the rotating shaft to rotate. The third spring pulls the sleeve to insert the fixing rod into the fixing hole, and the rotating shaft is locked by the sleeve to prevent the rotating handle from being pushed accidentally. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first perspective;
[0015] Figure 2 This is a schematic diagram of the locking box structure of the utility model from the second perspective;
[0016] Figure 3 This is a cross-sectional view of the locking box structure of the utility model from the third perspective;
[0017] Figure 4 This is a cross-sectional view of the sleeve structure from the fourth perspective of the present invention.
[0018] In the figure: 1. Mounting frame; 2. Insulating column; 3. Rotating plate; 4. Mounting plate; 5. Switch; 6. Locking box; 7. Locking groove; 8. Locking block; 9. Ear; 10. Sliding groove; 11. Sliding rod; 12. First spring; 13. Block; 14. Lifting rod; 15. Second spring; 16. Limiting plate; 17. Locking hole; 18. Connecting groove; 19. Pulling plate; 20. Rotating shaft; 21. Sleeve; 22. Rotating handle; 23. Embedding groove; 24. Embedding block; 25. Third spring; 26. Fixed rod; 27. Fixed hole; 28. Outer limiting cylinder; 29. Inner limiting rod. DETAILED DESCRIPTION
[0019] 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 are within the scope of protection of the present invention.
[0020] See also Figure 1-4 The utility model provides a technical solution: an anti-accidental-touch high-insulation high-voltage disconnector, comprising a mounting frame 1, an insulating column 2 fixedly welded on the lower side of the mounting frame 1, a rotating piece 3 fixedly welded on the front side of the insulating column 2, a knife 5 installed on the outer rotating shaft of the rotating piece 3, a mounting plate 4 fixedly welded on the lower side of the rotating piece 3, a locking box 6 fixedly welded on the upper part of the mounting plate 4, the locking boxes 6 on both sides are arranged on both sides of the knife 5, a locking groove 7 is provided inside the locking box 6, a locking block 8 is slidably installed inside the locking groove 7, a sliding groove 10 communicating with the locking groove 7 is provided inside the locking box 6, a sliding rod 11 is fixedly welded inside the sliding groove 10, and a connecting ear 9 is fixedly welded on the upper and lower sides of the end of the locking block 8 away from the knife 5, the connecting ear 9 is slidably connected to the outer side of the sliding rod 11, and a first elastic member is fixedly welded between the connecting ear 9 and the sliding groove 10. Spring 12, the first spring 12 is sleeved on the outside of the sliding rod 11, and a locking hole 17 that cooperates with the locking block 8 is opened inside the gate knife 5. The interior of the mounting plate 4 is slidably connected with a lifting rod 14, and a blocking block 13 facing the locking block 8 is fixedly welded on the upper part of the lifting rod 14. A second spring 15 is fixedly welded between the blocking block 13 and the mounting plate 4. The second spring 15 is sleeved on the outside of the lifting rod 14. When the gate knife 5 is disconnected, the gate knife 5 moves downward by pushing the blocking block 13 to ensure the horizontal position of the gate knife 5. The first spring 12 drives the locking block 8 to move along the locking groove 7 by pulling the ear 9, so that the locking block 8 is inserted into the locking hole 17, further locking the position of the gate knife 5. When the gate knife 5 is upward, the second spring 15 pushes the blocking block 13 so that the blocking block 13 blocks both ends of the locking groove 7 to prevent the locking block 8 from extending;
[0021] A connecting groove 18 communicating with the locking groove 7 is provided on the front side of the locking box 6, and a pulling piece 19 is fixedly welded on the front side of the end of the locking block 8 away from the knife switch 5. The pulling piece 19 is slidably connected to the inside of the connecting groove 18, and the locking block 8 is driven to move by the pulling piece 19, which is convenient for retrieving the locking block 8 into the locking box 6. The pulling piece 19 and the locking block 8 are insulated to prevent the danger caused by charge retention; a limiting piece 16 is fixedly welded at the lower part of the lifting rod 14 to prevent the lifting rod 14 from separating from the mounting plate 4; a rotating shaft 20 is rotatably installed inside the mounting frame 1, and a sleeve 21 is slidably installed on the outside of one end of the rotating shaft 20. A rotating handle 22 is fixedly welded at one end of the sleeve 21. By rotating the rotating handle 22, the sleeve 21 drives the rotating shaft 20 to rotate, thereby realizing the switch of the knife switch 5. Two sets of embedded blocks 24 are fixedly welded on the outside of the rotating shaft 20, and a sleeve 21 is opened inside There is an embedding groove 23, and the embedding block 24 is slidably installed inside the embedding groove 23 to ensure that the sleeve 21 can drive the rotating shaft 20 to rotate; a third spring 25 is fixedly welded between the rotating shaft 20 and the inner wall of the sleeve 21, and four groups of fixing rods 26 are fixedly welded on the side of the sleeve 21 close to the mounting frame 1. Four groups of fixing holes 27 are opened on the outside of the mounting frame 1. The third spring 25 pulls the sleeve 21 to insert the fixing rods 26 into the fixing holes 27, and locks the rotating shaft 20 through the sleeve 21 to prevent the rotating handle 22 from being pushed accidentally; an outer limiting cylinder 28 is fixedly welded on one side of the rotating shaft 20, and the outer limiting cylinder 28 is sleeved on the outside of the third spring 25. An inner limiting rod 29 is sleeved on the other end of the third spring 25, and the inner limiting rod 29 is fixedly welded to the inner wall of the sleeve 21 to limit the two ends of the third spring 25 to prevent the third spring 25 from deflecting when it is deformed.
[0022] Working principle: When the utility model is in use, by rotating the rotating handle 22, the sleeve 21 drives the rotating shaft 20 to rotate, thereby realizing the switching of the knife gate 5. The third spring 25 pulls the sleeve 21 to insert the fixing rod 26 into the fixing hole 27, and locks the rotating shaft 20 through the sleeve 21 to prevent the rotating handle 22 from being pushed accidentally. When the knife gate 5 is disconnected, the knife gate 5 moves downward by pushing the blocking block 13 to ensure that the knife gate 5 is in a horizontal position. The first spring 12 drives the locking block 8 to move along the locking groove 7 by pulling the ear 9, so that the locking block 8 is inserted into the locking hole 17, further locking the position of the knife gate 5. When the knife gate 5 is upward, the locking block 8 is driven to move by pulling the plate 19, and the locking block 8 is recovered into the locking box 6. The second spring 15 pushes the blocking block 13 so that the blocking block 13 blocks both ends of the locking groove 7 to prevent the locking block 8 from extending.
[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-insulation, high-voltage disconnector with an anti-accidental-touch function, comprising a mounting frame (1), characterized in that: The lower side of the mounting frame (1) is fixedly connected to an insulating column (2), the front side of the insulating column (2) is fixedly connected to a rotating piece (3), the outer rotating shaft of the rotating piece (3) is connected to a switch knife (5), the lower side of the rotating piece (3) is fixedly connected to a mounting plate (4), the upper part of the mounting plate (4) is fixedly connected to a locking box (6), the locking boxes (6) on both sides are arranged on both sides of the switch knife (5), a locking groove (7) is provided inside the locking box (6), a locking block (8) is slidably connected inside the locking groove (7), a sliding groove (10) communicating with the locking groove (7) is provided inside the locking box (6), a sliding rod (11) is fixedly connected inside the sliding groove (10), and the locking block (8) is remote from the locking box (6). A connecting ear (9) is fixedly connected to the upper and lower sides of one end of the gate knife (5), and the connecting ear (9) is slidably connected to the outside of the sliding rod (11). A first spring (12) is fixedly connected between the connecting ear (9) and the sliding groove (10), and the first spring (12) is sleeved on the outside of the sliding rod (11). A locking hole (17) for matching the locking block (8) is opened inside the gate knife (5), and a lifting rod (14) is slidably connected inside the mounting plate (4). A blocking block (13) facing the locking block (8) is fixedly connected to the upper part of the lifting rod (14), and a second spring (15) is fixedly connected between the blocking block (13) and the mounting plate (4), and the second spring (15) is sleeved on the outside of the lifting rod (14).
2. The anti-accidental-touch high-insulation high-voltage disconnector according to claim 1, characterized in that: The front side of the locking box (6) is provided with a connecting groove (18) communicating with the locking groove (7); the front side of the locking block (8) away from the gate knife (5) is fixedly connected with a pulling piece (19); the pulling piece (19) is slidably connected to the inside of the connecting groove (18).
3. The anti-accidental-touch high-insulation high-voltage disconnector according to claim 1, characterized in that: The lower portion of the lifting rod (14) is fixedly connected to a limiting plate (16).
4. The anti-accidental-touch high-insulation high-voltage disconnector according to claim 1, characterized in that: The mounting frame (1) is rotatably connected to a rotating shaft (20) inside, a sleeve (21) is slidably connected to the outside of one end of the rotating shaft (20), a rotating handle (22) is fixedly connected to one end of the sleeve (21), two groups of embedded blocks (24) are fixedly connected to the outside of the rotating shaft (20), an embedded groove (23) is provided inside the sleeve (21), and the embedded blocks (24) are slidably connected to the inside of the embedded groove (23).
5. The anti-accidental-touch high-insulation high-voltage disconnector according to claim 4, characterized in that: A third spring (25) is fixedly connected between the rotating shaft (20) and the inner wall of the sleeve (21); four groups of fixing rods (26) are fixedly connected to the side of the sleeve (21) close to the mounting frame (1); and four groups of fixing holes (27) are opened on the outer side of the mounting frame (1).
6. The anti-accidental-touch high-insulation high-voltage disconnector according to claim 5, characterized in that: An outer limiting cylinder (28) is fixedly connected to one side of the rotating shaft (20), and the outer limiting cylinder (28) is sleeved on the outside of the third spring (25). An inner limiting rod (29) is sleeved inside the other end of the third spring (25), and the inner limiting rod (29) is fixedly connected to the inner wall of the sleeve (21).