A high voltage AC isolating switch

Abstract

The present application relates to a high-voltage AC disconnector, and relates to the technical field of disconnectors, which includes a base and a conductive mechanism, two insulating columns are arranged on the base, and the two insulating columns are respectively arranged on the left and right sides of the top of the base, and the installation positions of the two insulating columns are provided with installation grooves, and the installation grooves are provided with easy-to-disassemble fixing mechanisms, and the easy-to-disassemble fixing mechanisms include installation components and clamping components, and the installation components include installation sleeves and connecting columns, and the installation sleeves are fixedly arranged in the installation grooves, and the connecting columns are fixedly arranged at the bottom of the insulating columns, and the connecting columns are adapted to the connecting columns. The present application has a reasonable structure, and the present application has a simple and convenient disassembly process, avoids the need to use external tools for operation, and improves the practical effect.

Description

Technical Field

[0001] The present application relates to the technical field of isolating switches, and in particular to a high-voltage AC isolating switch. Background Art

[0002] High-voltage AC disconnector is an important power system equipment, widely used in the electrical systems of power plants and substations. It is mainly used to ensure the safety of high-voltage electrical appliances and devices during maintenance work and to isolate voltage. It cannot be used to cut off or input load current and interrupt short-circuit current. It is only suitable for certain switching operations that do not generate strong arcs.

[0003] In the prior art, the bottom of the insulating column is usually connected to the base by welding or bolts. When a component on the insulating column is damaged and needs to be disassembled and replaced, external tools are required to perform the disassembly and replacement operation, which is less practical. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a high-voltage AC isolating switch.

[0005] A high-voltage AC disconnector provided in the present application adopts the following technical solution, including a base and a conductive mechanism, wherein two insulating columns are arranged on the base, and the two insulating columns are respectively arranged on the left and right sides of the top of the base, and the installation positions of the two insulating columns are provided with installation grooves, and the installation grooves are provided with easy-to-disassemble fixing mechanisms, and the easy-to-disassemble fixing mechanisms include an installation component and a clamping component, and the installation component includes an installation sleeve and a connecting column, the installation sleeve is fixedly arranged in the installation groove, and the connecting column is fixedly arranged at the bottom of the insulating column, and the connecting column is adapted to the installation sleeve, and the clamping component includes a threaded clamping ring and a clamping claw, and the clamping claw is arranged on the installation sleeve, and a plurality of the clamping claws are arranged on the installation sleeve, and each of the clamping claws is evenly arranged circumferentially on the installation sleeve, and a clamping thread is opened on the outer wall of each of the clamping claws, and the threaded clamping ring is sleeved on the installation sleeve and connected to each of the clamping threads, and a fixing hole adapted to the clamping claw is opened on the connecting column.

[0006] Optionally, a plurality of oblique sliding grooves are evenly provided on the outer side wall of the mounting sleeve, and each of the clamping jaws is slidably disposed in each of the oblique sliding grooves.

[0007] Optionally, a connecting sleeve is further provided on the base, and the connecting sleeve is sleeved on the threaded clamping ring and fixedly connected to the threaded clamping ring.

[0008] Optionally, the connecting sleeve includes at least a first connecting portion and a second connecting portion, and the first connecting portion is snap-connected with the second connecting portion.

[0009] Optionally, rubber gaskets are provided at both end portions of the connecting sleeve.

[0010] Optionally, the conductive mechanism includes a static contact seat, a moving contact seat and a conductive knife switch, the static contact seat and the moving contact seat are respectively arranged at the ends of the two insulating columns, one end of the conductive knife switch is rotatably mounted on the static contact seat, and a locking assembly is provided on the conductive knife switch.

[0011] Optionally, the locking assembly includes a mounting block, a limit block and a telescopic spring, the mounting block is arranged on the moving contact seat, the limit block is slidably arranged on the mounting block, a sliding cavity is opened in the mounting block, the limit block includes a connecting part and a sliding part, the connecting part and the sliding part are integrally formed, the connecting part is arranged in the sliding cavity, the telescopic spring is arranged in the sliding cavity, one end of the telescopic spring is fixedly connected to the inner wall of the sliding cavity, the other end of the telescopic spring is fixedly connected to the connecting part, a locking cavity is opened on the sliding part, and an unlocking inclined surface is opened on the bottom wall of the locking cavity.

[0012] By adopting the above technical solution, the present application has at least one of the following beneficial effects:

[0013] 1. The connecting column is fixedly arranged at the bottom of the insulating column, and the connecting column is adapted to the installation sleeve. After the connecting column is inserted into the connecting sleeve, the connecting sleeve is rotated. The rotation of the connecting sleeve drives the threaded clamping ring to rotate. When the threaded clamping ring rotates, the clamping claw slides. When one end of the clamping claw slides into the fixing hole, the insulating column is fixed. The reverse rotation of the connecting sleeve loosens the insulating column, thereby removing the insulating column. The insulating column can be disassembled and replaced without the help of external tools, which is highly practical.

[0014] 2. Through the cooperation between the mounting block, the limit block and the telescopic spring, when closing the switch, the stable connection between the conductive knife switch and the moving contact seat is guaranteed, thereby ensuring the stability of the device after closing the switch. The conductive knife switch can be separated from the limit block by simply pressing down the conductive knife switch so that the limit block does not move, providing convenient protection for the separation of the conductive knife switch and the moving contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of a conveniently disassembled fixing mechanism according to an embodiment of the present application;

[0017] Figure 3 It is a schematic diagram of the conductive mechanism of an embodiment of the present application.

[0018] In the figure, 1. base; 2. conductive mechanism; 3. insulating column; 4. mounting groove; 5. easy-to-disassemble fixing mechanism; 6. mounting assembly; 7. clamping assembly; 8. mounting sleeve; 9. connecting column; 10. threaded clamping ring; 11. clamping claw; 12. clamping thread; 13. fixing hole; 14. oblique sliding groove; 15. connecting sleeve; 16. first connecting part; 17. second connecting part; 18. rubber gasket; 19. static contact seat; 20. moving contact seat; 21. conductive knife switch; 22. locking assembly; 23. mounting block; 24. limit block; 25. telescopic spring; 26. sliding cavity; 27. connecting part; 28. sliding part; 29. ​​locking cavity; 30. unlocking inclined surface. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-3 The present application is further described with specific embodiments:

[0020] First of all, it should be noted that in the description of this application, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and other directional words appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application; in addition, if the terms "first", "second", "third" and other numerical quantifiers appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", and "connected" appear, they should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, a limited connection such as an interference fit, a transition fit, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium; therefore, for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0021] The present application embodiment discloses a high voltage AC isolating switch, referring to Figure 1 and Figure 3, including a base 1 and a conductive mechanism 2, the base 1 is provided with two insulating columns 3, the two insulating columns 3 are respectively arranged on the left and right sides of the top of the base 1, the conductive mechanism 2 includes a static contact seat 19, a moving contact seat 20 and a conductive knife switch 21, the static contact seat 19 and the moving contact seat 20 are respectively arranged at the ends of the two insulating columns 3, one end of the conductive knife switch 21 is rotatably mounted on the static contact seat 19, and the conductive knife switch 21 is provided with a lock assembly 22, the lock assembly 22 includes a mounting block 23, a limit block 24 and a telescopic spring 25, the mounting block 23 is arranged on the moving contact seat 20, and the limit block 24 is slidingly arranged The mounting block 23 is provided with a sliding cavity 26, the limit block 24 includes a connecting portion 27 and a sliding portion 28, the connecting portion 27 and the sliding portion 28 are integrally formed, the connecting portion 27 is arranged in the sliding cavity 26, the telescopic spring 25 is arranged in the sliding cavity 26, one end of the telescopic spring 25 is fixedly connected to the inner wall of the sliding cavity 26, the other end of the telescopic spring 25 is fixedly connected to the connecting portion 27, a locking cavity 29 is provided on the sliding portion 28, and an unlocking inclined surface 30 is provided on the bottom wall of the locking cavity 29. When the closing operation is required, the conductive knife switch 21 is rotated to be aligned with the limit block 24 abuts, after the conductive knife switch 21 abuts against the limit block 24, the conductive knife switch 21 continues to be pressed down, at this time the telescopic spring 25 is in a gradually stretched state, and the limit block 24 moves toward the static contact seat 19, and when the conductive knife switch 21 is pressed down to fall into the locking cavity 29, the pressing action is stopped, at this time the telescopic spring 25 is in a retracted state, and the limit block 24 moves away from the static contact seat 19, and when the limit block 24 stops moving, the conductive knife switch 21 completely enters the locking cavity 29 for stable engagement, completing the locking action, thereby ensuring the smooth flow of current, and when the conductive knife switch 21 needs to be opened, continue The conductive knife switch 21 is pressed down. At this time, the conductive knife switch 21 slides along the unlocking inclined surface 30, the telescopic spring 25 is stretched, and the limit block 24 moves toward the static contact seat 19. When the conductive knife switch 21 slides to the point where it can no longer move, the limit block 24 is manually fixed in place, and the conductive knife switch 21 is released. The conductive knife switch 21 automatically detaches from the limit block 24 under the action of the torsion spring (not marked) to complete the opening action. Since the connecting portion 27 and the sliding portion 28 are integrally formed, and the connecting portion 27 is arranged in the sliding cavity 26, the limit block 24 will not easily leave the mounting block 23 during the sliding process on the mounting block 23.

[0022] Reference Figure 1 and Figure 2, the installation positions of the two insulating columns 3 are both provided with installation grooves 4, and the installation grooves 4 are provided with easy-to-disassemble fixing mechanisms 5, which include installation components 6 and clamping components 7, the installation components 6 include installation sleeves 8 and connecting columns 9, the installation sleeves 8 are fixedly arranged in the installation grooves 4, the connecting columns 9 are fixedly arranged at the bottom of the insulating columns 3, and the connecting columns 9 are adapted to the installation sleeves 8, the clamping components 7 include threaded clamping rings 10 and clamping jaws 11, the clamping jaws 11 are arranged on the installation sleeves 8, and multiple clamping jaws 11 are arranged on the installation sleeves 8, and each clamping jaw 11 is evenly arranged around the installation sleeves 8, and each clamping jaw 11 is provided with a clamping thread 12 on the outer wall, the threaded clamping ring 10 is sleeved on the installation sleeves 8 and is threadedly connected to each clamping jaw 11, and a fixing hole 13 adapted to the clamping jaw 11 is provided on the connecting column 9, the installation sleeves 8 A plurality of oblique grooves 14 are evenly provided on the outer wall, and each clamping jaw 11 is slidably arranged in each oblique groove 14 respectively. The connecting column 9 is fixedly arranged at the bottom of the insulating column 3, and the connecting column 9 is adapted to the mounting sleeve 8. After the connecting column 9 is inserted into the mounting sleeve 8, the threaded clamping ring 10 is rotated, and the rotation of the threaded clamping ring 10 is converted into the axial movement of each clamping jaw 11, which tilts toward the connecting column 9 and inward into the fixing hole 13. When one end of the clamping jaw 11 slides into the fixing hole 13, the insulating column 3 is fixed. When the threaded clamping ring 10 rotates in the opposite direction, the clamping jaw 11 leaves the fixing hole 13 and separates from the connecting column 9, thereby loosening the insulating column 3, making it convenient for the staff to remove the insulating column 3 from the base 1. The insulating column 3 can be disassembled and replaced without the help of external tools, and the practicability is high.

[0023] A connecting sleeve 15 is also provided on the base 1. The connecting sleeve 15 is sleeved on the threaded clamping ring 10 and fixedly connected to the threaded clamping ring 10. The connecting sleeve 15 is provided to increase the contact area, which makes it easier for the staff to rotate the threaded clamping ring 10. The connecting sleeve 15 includes at least a first connecting portion 16 and a second connecting portion 17. The first connecting portion 16 is clamped with the second connecting portion 17. If the connecting sleeve 15 is damaged, it is convenient for the staff to dismantle it. Rubber washers 18 are provided at both end portions of the connecting sleeve 15. By providing the rubber washers 18, the corrosion effect on the metal in the easy-to-disassemble fixing mechanism 5 caused by the entry of external water vapor is reduced. After the rubber washers 18 are provided at both end portions of the connecting sleeve 15, the friction force generated when the connecting sleeve 15 is rotated can be increased, thereby reducing the possibility of the connecting sleeve 15 rotating by itself.

[0024] The implementation principle of the embodiment of the present application is:

[0025] When it is necessary to install the insulating column 3 on the base 1, first fix the connecting column 9 at the bottom of the insulating column 3, then insert the connecting column 9 into the installation sleeve 8, and after the installation is completed, rotate the connecting sleeve 15. The rotation of the connecting sleeve 15 drives the threaded clamping ring 10 to rotate, and the threaded clamping ring 10 rotates to drive the clamping jaw 11 to slide. When one end of the clamping jaw 11 slides into the fixing hole 13, the insulating column 3 is fixed. When it is necessary to remove the insulating column 3 from the base 1, it is only necessary to rotate the connecting sleeve 15 in the opposite direction. The rotation of the connecting sleeve 15 drives the threaded clamping ring 10 to rotate. When the threaded clamping ring 10 rotates, the clamping jaw 11 slides. When one end of the clamping jaw 11 slides out of the fixing hole 13, the insulating column 3 is released.

[0026] It should be noted that the above embodiments are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application. Although the present application has been described in detail in this specification with reference to the above embodiments, a person of ordinary skill in the art should understand that a person of ordinary skill in the art can still modify or make equivalent substitutions to the present application, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

Claims

1. A high voltage AC isolating switch, It is characterized in that The invention comprises a base (1) and a conductive mechanism (2), wherein two insulating columns (3) are arranged on the base (1), and the two insulating columns (3) are arranged on the left and right sides of the top of the base (1), respectively; a mounting groove (4) is provided at the mounting position of the two insulating columns (3); a conveniently detachable fixing mechanism (5) is arranged at the mounting groove (4), and the conveniently detachable fixing mechanism (5) comprises a mounting component (6) and a clamping component (7); the mounting component (6) comprises a mounting sleeve (8) and a connecting column (9); the mounting sleeve (8) is fixedly arranged in the mounting groove (4); the connecting column (9) is fixedly arranged at the bottom of the insulating column (3); The connecting column (9) is adapted to the mounting sleeve (8), the clamping assembly (7) comprises a threaded clamping ring (10) and a clamping jaw (11), the clamping jaw (11) is arranged on the mounting sleeve (8), a plurality of the clamping jaws (11) are arranged on the mounting sleeve (8), each of the clamping jaws (11) is evenly arranged in the circumference of the mounting sleeve (8), a clamping thread (12) is provided on the outer wall of each of the clamping jaws (11), the threaded clamping ring (10) is sleeved on the mounting sleeve (8) and connected to each of the clamping threads (12), and a fixing hole (13) adapted to the clamping jaw (11) is provided on the connecting column (9).

2. A high voltage AC isolating switch according to claim 1, It is characterized in that A plurality of oblique sliding grooves (14) are evenly arranged on the outer side wall of the installation sleeve (8), and each of the clamping jaws (11) is slidably arranged in each of the oblique sliding grooves (14).

3. A high voltage AC isolating switch according to claim 2, It is characterized in that A connecting sleeve (15) is also provided on the base (1), and the connecting sleeve (15) is sleeved on the threaded clamping ring (10) and fixedly connected to the threaded clamping ring (10).

4. A high voltage AC isolating switch according to claim 3, It is characterized in that The connecting sleeve (15) comprises at least a first connecting portion (16) and a second connecting portion (17), and the first connecting portion (16) is snap-connected with the second connecting portion (17).

5. A high voltage AC isolating switch according to claim 4, It is characterized in that Rubber washers (18) are provided at both end portions of the connecting sleeve (15).

6. A high voltage AC isolating switch according to claim 1, It is characterized in that The conductive mechanism (2) comprises a stationary contact seat (19), a movable contact seat (20) and a conductive knife switch (21); the stationary contact seat (19) and the movable contact seat (20) are respectively arranged at the ends of the two insulating columns (3); one end of the conductive knife switch (21) is rotatably mounted on the stationary contact seat (19); and a locking assembly (22) is arranged on the conductive knife switch (21).

7. A high voltage AC isolating switch according to claim 6, It is characterized in that The lock assembly (22) comprises a mounting block (23), a limiting block (24) and a telescopic spring (25); the mounting block (23) is arranged on the moving contact seat (20); the limiting block (24) is slidably arranged on the mounting block (23); a sliding cavity (26) is provided in the mounting block (23); the limiting block (24) comprises a connecting portion (27) and a sliding portion (28); the connecting portion (27) and the sliding portion (28) are integrally formed; the connecting portion (27) is arranged in the sliding cavity (26); the telescopic spring (25) is arranged in the sliding cavity (26); one end of the telescopic spring (25) is fixedly connected to the inner wall of the sliding cavity (26); the other end of the telescopic spring (25) is fixedly connected to the connecting portion (27); a locking cavity (29) is provided on the sliding portion (28); and an unlocking inclined surface (30) is provided on the bottom wall of the locking cavity (29).

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