Isolating switch

Abstract

The invention relates to an isolating switch which comprises a base, an insulating column, a sleeve shell, a driving assembly, a rotating assembly, a separating mechanism, a first conducting rod, a second conducting rod, a first contact, a second contact, a first isolating sleeve and a second isolating sleeve, the insulating column is arranged between the base and the sleeve shell, one end of the driving assembly penetrates out of the sleeve shell, and the other end of the driving assembly is connected with the separating mechanism. The first conducting rod and the second conducting rod are installed on the two opposite sides of an inner cavity of the sleeve shell, a first contact is arranged at one end of the first conducting rod, a second contact is arranged at one end of the second conducting rod, and the rotating assembly is connected with the separating mechanism and the first contact. The rotating assembly is used for driving the first contact to horizontally rotate relative to the sleeve shell under the moving action of the separating mechanism, the first isolation sleeve is arranged at one end of the second contact and makes contact with one end of the second conductive rod, and the second isolation sleeve is arranged on the side face of one end of the first conductive rod and corresponds to the first isolation sleeve in position. Compared with the prior art, the invention has the advantages of reducing switch damage and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of power systems, and particularly to a disconnecting switch. Background Art

[0002] A disconnecting switch is a switching device mainly used for "isolating power sources, performing switching operations, and connecting and disconnecting small-current circuits" without an arc-extinguishing function. When the disconnecting switch is in the open position, there is an insulating distance that meets the specified requirements and an obvious disconnection mark between the contacts. When in the closed position, it can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuits) within a specified time.

[0003] Patent CN219534339U discloses a disconnecting switch, which includes a base, a first insulator, a first contact plate assembly, a second insulator, a fixing plate, a second contact plate, and two isolating blades. The first contact plate assembly includes a locking baffle arranged on the first insulator and a first contact plate arranged on the locking baffle and cooperating with the two isolating blades. A locking component cooperating with the locking baffle is arranged on the two isolating blades.

[0004] In this solution, during the opening operation, it is necessary to pull the pull ring to release the fixing effect of the locking piece, and then the operator can disconnect the two isolating blades from the first contact plate. However, during the opening and closing processes, before the distance between the isolating blades and the contact plate reaches the arc-extinguishing distance, an arc will continuously be generated, which may cause the staff to be injured by the continuously increasing arc, and the generated arc with a relatively large length may cause great damage to the equipment. Summary of the Invention

[0005] The purpose of the present invention is to provide a disconnecting switch that reduces arc damage.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] An isolating switch includes a base, an insulating column, a housing, and a driving assembly, a rotating assembly, a separating mechanism, a first conductive rod, a second conductive rod, a first contact, a second contact, a first isolating sleeve, and a second isolating sleeve disposed inside the housing. The insulating column is disposed between the base and the housing. One end of the driving assembly passes through the housing, and the other end is connected to the separating mechanism. The driving assembly is used to drive the separating mechanism to move. The first conductive rod and the second conductive rod are respectively installed on opposite sides of the inner cavity of the housing. The first contact is provided at one end of the first conductive rod, and the second contact is provided at one end of the second conductive rod. The rotating assembly is respectively connected to the separating mechanism and the first contact. The rotating assembly is used to drive the first contact to rotate horizontally relative to the housing under the movement of the separating mechanism. The first isolating sleeve is disposed on the outer surface of one end of the second contact and contacts one end of the second conductive rod. The second isolating sleeve is disposed on the side surface of one end of the first conductive rod and corresponds to the position of the first isolating sleeve.

[0008] Further, the driving assembly includes a driving rod and a driven rod. One end of the driving rod passes through the housing. The other end of the driving rod is connected to one end of the driven rod, and the other end of the driven rod is connected to the separating mechanism.

[0009] Further, the rotating assembly includes a rotating rod, a first gear, and a first rack that meshes with the first gear. One end of the rotating rod is rotatably connected to one end of the first contact. The other end of the rotating rod passes through one end of the first conductive rod and is connected to the first gear. The first gear is also connected to the first rack, and the first rack is also connected to the separating mechanism. The first gear and the first gear are used to drive the rotating rod to rotate when the separating mechanism moves. The rotating rod is used to drive the first contact to rotate under the drive of the first gear and the first rack.

[0010] Further, it further includes a conductive block and a connecting groove. The conductive block is disposed at the other end of the first contact, and the connecting groove is disposed at the other end of the second contact. The connecting groove is used to be snap-connected to the conductive block.

[0011] Further, the separation mechanism includes a mounting block, a fixing plate, a mounting plate, a connecting block, a second gear, and a second rack and a third rack that mesh with the second gear. The mounting block is installed on the inner wall of the housing. The upper end of the mounting block is provided with symmetrically arranged fixing plates. The symmetric fixing plates are jointly connected to the mounting plate. The upper end of the mounting plate is provided with symmetrically arranged connecting blocks. The symmetrically arranged connecting blocks are respectively connected to the first isolation sleeve and the second isolation sleeve. The upper end of the mounting plate is further provided with the second gear, the second rack, and the third rack. The second rack and the third rack are respectively arranged on both sides of the second gear. The second rack is further connected to the connecting block connecting the first isolation sleeve. The third rack is further connected to the connecting block connecting the second isolation sleeve. The connecting block is used to, when the separation mechanism moves, the first isolation sleeve connected to the connecting block pushes the second rack to rotate. The second rack drives the second gear to rotate. The second gear drives the third rack to rotate. The third rack drives the second isolation sleeve to move.

[0012] Further, the separation mechanism further includes a housing, a driving block, a guiding rod, a guiding groove, an extension block, a balance rod, and a moving block. The housing is installed on the mounting block and is connected to the driving component. The driving block is vertically slidably connected to the housing. Both lower portions on both sides of the driving block are connected with the guiding rods. The guiding rods are also vertically slidably connected to the inner cavity side wall of the housing. The guiding groove is opened on one side of the fixing plate close to the housing and is slidably matched with one end of the guiding rod away from the driving block. The housing is used for the driving component to drive the driving block to move through the housing. The upper end of the extension block is installed at the lower end of the connecting block, and the lower end of the extension block is connected to the upper end of the balance rod. The lower end of the balance rod is vertically slidably connected to the moving block. A spring is sleeved on the outer surface of the balance rod to elastically connect the moving block and the extension block. The extension block and the balance rod are also slidably connected to the mounting plate.

[0013] Further, the separation mechanism further includes a reset component. The reset component includes an arc-shaped groove, a one-way moving rod, a connecting port, a notch, a first magnetic pole, and a second magnetic pole. Both ends of the arc-shaped groove are connected to the guiding groove. A connecting port is opened at the connection of one end of the arc-shaped groove and the guiding groove. The connecting port is rotatably connected to the one-way moving rod. A notch is opened on one side of the connecting port. The vertical height of the notch is the same as the vertical height of the one-way moving rod. The first magnetic pole is installed at one end of the one-way moving rod. The second magnetic pole is installed in the inner cavity of the notch. The first magnetic pole and the second magnetic pole have the same magnetic property.

[0014] It is used to make the one-way moving rod move away from the position of the notch and maintain an inclined state by the mutual repulsion of the same-sex magnetic poles.

[0015] Further, the separation mechanism further includes a horizontal groove and a vertical groove. The horizontal groove is opened at the lower end of the mounting plate and is slidably engaged with the outer wall of the moving block. The vertical groove is opened at the upper part of one end of the horizontal groove far from the second conductive rod, and the horizontal width of the vertical groove is the same as the horizontal width of the moving block. The vertical groove and the horizontal groove communicate with each other to form an L-shaped groove.

[0016] Further, the separation mechanism further includes a limit shell, a limit groove, a clamping groove, and a limit rod. The limit shell is slidably connected to both sides of the upper part of the moving block and is attached to the side wall of the lower end of the balance rod. The limit groove is opened in the inner cavity of the horizontal groove and is slidably engaged with the limit shell. The limit rod is slidably connected in the inner cavity of the limit groove. The limit rod and the limit shell are elastically connected by a spring. The clamping groove is opened in the limit groove, and a transition surface is provided on the clamping groove. The transition surface is inclined in the direction away from the moving block. The clamping groove is used to closely fit with the limit rod under the action of elastic force to elastically limit the moving block through the limit rod.

[0017] Further, the separation mechanism further includes a driven plate, a driven block, and a sliding groove. One end of the driven plate is slidably connected to the lower end of the mounting plate, and a driven block for driving the driven plate to move is provided at the lower part of one end of the driven plate. The other end of the driven plate is connected to the first rack. The sliding groove is opened at the lower end of the mounting plate and is slidably engaged with the driven plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The driving component of the present invention drives the separation mechanism, and the separation mechanism drives the rotating component. Through the cooperation of the first gear and the first rack in the rotating component, the first isolation sleeve and the second isolation sleeve are driven to approach each other, so that the first contact rotates horizontally away from the position where the second contact is located, thereby reducing the distance at which an arc is generated during the separation of the first contact and the second contact, and thus avoiding the continuous generation of an arc when the interval between the first contact and the second contact is less than the arc extinguishing distance, thereby reducing the damage of the arc to the disconnector.

[0020] (2) By pulling the driving rod to drive the driven rod to move horizontally synchronously, the housing and the driving block are driven to move horizontally, and then the first isolation sleeve and the second isolation sleeve are driven to approach each other, thereby separating the first contact and the second contact, avoiding the continuous generation of an arc when the interval between the first contact and the second contact is less than the arc extinguishing distance, and during the closing process, after the first contact rotates back to the initial position, the first isolation sleeve and the second isolation sleeve will move away from each other, thereby avoiding the continuous generation of an arc during the closing process after the interval between the first contact and the second contact gradually becomes less than the arc extinguishing distance.

[0021] (3) By providing components such as a limiting shell, a limiting groove, and a clamping groove, when the limiting shell moves away from the clamping groove, the limiting rod is located inside the limiting shell at this time, and the end of the limiting rod away from the moving block fits against the side wall of the limiting groove. When the limiting shell moves to the transition surface, the limiting rod gradually extends out of the inner cavity of the limiting shell under the action of elastic force and contacts the transition surface. Until the moving block stops moving, the limiting rod moves into the clamping groove under the action of elastic force. At this time, the symmetrical limiting rods and the clamping groove fit tightly under the action of elastic force, so as to elastically limit the moving block in the horizontal direction of the one-way moving rod through the symmetrical limiting rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic diagram of the structure of the housing of the present invention;

[0024] Figure 3 is a schematic diagram of the internal structure of the housing of the present invention;

[0025] Figure 4 is of the present invention Figure 2 a schematic diagram of the structure of area A;

[0026] Figure 5 is of the present invention Figure 3 a schematic diagram of the structure of area B;

[0027] Figure 6 is a schematic diagram of the internal structure of the fixing plate of the present invention;

[0028] Figure 7 is of the present invention Figure 6 a schematic diagram of the structure of area C;

[0029] Figure 8 is a schematic diagram of the structure of the moving block of the present invention;

[0030] Figure 9 is a schematic diagram of the structure of the limiting shell of the present invention;

[0031] Figure 10 is of the present invention Figure 6 a schematic diagram of the structure of area D;

[0032] Figure 11 is a schematic diagram of the structure of the horizontal groove and the vertical groove of the present invention;

[0033] In the figure: 1. Base; 2. Insulating column; 3. Sheath; 4. Housing; 5. Driving rod; 6. First conductive rod; 7. Second conductive rod; 8. Driven rod; 9. Mounting block; 10. First contact; 11. Rotating rod; 12. Second contact; 13. Connecting groove; 14. First gear; 15. First rack; 16. First isolation sleeve; 17. Second isolation sleeve; 18. Connecting block; 19. Second gear; 20. Second rack; 21. Third rack; 22. Mounting plate; 23. Driven plate; 24. Driven block; 25. Fixed plate; 26. Arc groove; 27. Moving block; 28. Driving block; 29. Outer shell; 30. Guide rod; 31. Extension block; 32. Balance rod; 33. Limiting shell; 34. Limiting groove; 35. Card slot; 36. Limiting rod; 37. Unidirectional moving rod; 38. Connecting port; 39. Guide groove; 40. Conductive block. Detailed implementation mode

[0034] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0035] This embodiment provides a disconnector, as Figure 1 shown, including: a base 1, an insulating column 2, a sheath 3, and a driving assembly, a rotating assembly, a separating mechanism, a first conductive rod 6, a second conductive rod 7, a first contact 10, a second contact 12, a first isolation sleeve 16, and a second isolation sleeve 17 arranged inside the sheath 3.

[0036] Combined with Figure 1 and Figure 2 , for the rotating assembly, the driving rod 5 and the driven rod 8, symmetric insulating columns 2 are fixedly connected to the upper end of the base 1, the upper ends of the insulating columns 2 are fixedly connected together with a sheath 3, a housing 4 is fixedly connected to the middle of one side of the sheath 3, the lower side of the housing 4 is fixedly connected to the insulating column 2 away from the sheath 3, a driving rod 5 is slidably connected to the middle of the sheath 3, a driven rod 8 is fixedly connected to one end of the driving rod 5 close to the housing 4, a first conductive rod 6 and a second conductive rod 7 are respectively fixedly connected to both sides of the inner cavity of the sheath 3, a first contact 10 is arranged at the upper end of the first conductive rod 6, a second contact 12 is fixedly connected to the middle of the side of the second conductive rod 7 close to the first conductive rod 6, a separating mechanism for separating the first contact 10 and the second contact 12 is arranged at the bottom of the inner cavity of the housing 4, and one end of the driven rod 8 away from the driving rod 5 is connected to one side of the separating mechanism close to the driving rod 5. When the driving rod 5 drives the driven rod 8 to horizontally move away from the position where the housing 4 is located, the driven rod 8 drives the separating mechanism to horizontally move, and the upper end of the separating mechanism drives the first contact 10 to horizontally rotate away from the position where the second contact 12 is located.

[0037] As Figures 3 - 4As shown, a first insulating sleeve 16 is slidably connected to the middle of the side of the second conductive rod 7 close to the second contact 12. The first insulating sleeve 16 is sleeved on the outer wall of the second contact 12. A second insulating sleeve 17 is slidably connected to the middle of the side of the lower part of the first conductive rod 6 close to the second contact 12. The position of the second insulating sleeve 17 corresponds to the position of the first insulating sleeve 16. A rotating rod 11 is rotatably connected to the side of the upper end of the first conductive rod 6 close to the second conductive rod 7. The middle of the upper end of the rotating rod 11 is rotatably connected to the side of the first contact 10 away from the second conductive rod 7. That is, the first contact 10 can rotate vertically around the center position of the upper end face of the rotating rod 11. The lower end of the rotating rod 11 passes through the lower end face of the first conductive rod 6. A first gear 14 is fixedly connected to the outer wall of the lower part of the rotating rod 11. A first rack 15 is arranged on one side of the first gear 14. The end of the first rack 15 away from the first gear 14 is slidably connected to the outer wall of the separating mechanism. The first rack 15 and the first gear 14 are meshed with each other. During the horizontal movement of the first rack 15 along with the separating mechanism, the first rack 15 will drive the first gear 14 to rotate horizontally, thereby driving the rotating rod 11 to drive the first contact 10 to rotate horizontally, so that the position of the first contact 10 is away from the position where the second contact 12 is located, so as to separate the first contact 10 and the second contact 12 to achieve power-off processing. A conductive block 40 is fixedly connected to the side of the lower end of the first contact 10 away from the rotating rod 11. A connection groove 13 that is snap-fitted with the conductive block 40 is provided at the upper end of the second contact 12.

[0038] As Figure 5As shown, the separating mechanism includes a mounting block 9. The lower end of the mounting block 9 is fixedly connected to the middle of the lower wall of the inner cavity of the housing 4. The upper end of the mounting block 9 is fixedly connected with symmetric fixing plates 25. The symmetric fixing plates 25 are fixedly connected with a mounting plate 22 at the ends away from the mounting block 9. The middle of the upper end of the mounting plate 22 is horizontally slidably connected with symmetric connecting blocks 18. The symmetric connecting blocks 18 are respectively fixedly connected to the first isolation sleeve 16 and the second isolation sleeve 17. The middle of the upper end of the mounting plate 22 is rotatably connected with a second gear 19. On both sides of the second gear 19, there are respectively arranged a second rack 20 and a third rack 21. Both the second rack 20 and the third rack 21 are horizontally slidably connected to the mounting plate 22. The second rack 20 and the third rack 21 are respectively meshed with the second gear 19. The end of the second rack 20 away from the second gear 19 is fixedly connected to the connecting block 18 close to the first isolation sleeve 16. The end of the third rack 21 away from the second gear 19 is fixedly connected to the connecting block 18 close to the second isolation sleeve 17. That is, when the connecting block 18 drives the first isolation sleeve 16 to move horizontally, the connecting block 18 connected to the first isolation sleeve 16 will push the second rack 20 to move horizontally, thereby driving the second gear 19 to rotate and driving the third rack 21 to move horizontally in the direction of the second conductive rod 7, so as to drive the second isolation sleeve 17 to move horizontally through the third rack 21, so as to achieve the first isolation sleeve 16 and the second isolation sleeve 17 approaching the position of the conductive block 40 synchronously horizontally. And inclined surfaces are provided around the lower part of the conductive block 40. Therefore, when the second isolation sleeve 17 and the first isolation sleeve 16 approach the conductive block 40, the side walls of the first isolation sleeve 16 and the second isolation sleeve 17 will contact the inclined surfaces, thereby pushing the conductive block 40 to move in the vertical direction. And since the conductive block 40 is connected to the first contact 10, when the inclined surfaces contact the first isolation sleeve 16 and the second isolation sleeve 17 synchronously, the first contact 10 will rotate vertically in the direction away from the second contact 12. When the first isolation sleeve 16 and the second isolation sleeve 17 are closely attached to each other, at this time, the first contact 10 and the second contact 12 are separated from each other, thus avoiding continuous generation of electric arcs in the gap between the first contact 10 and the second contact 12 when the power is off.

[0039] As Figures 6 - 7As shown, a housing 29 is fitted to the middle of the upper end of the mounting block 9. A driving block 28 is vertically slidably connected to the middle of the upper end of the housing 29. Both lower parts of the two sides of the driving block 28 are fixedly connected with guide rods 30. The guide rods 30 are vertically slidably connected to the inner cavity side wall of the housing 29. A guide groove 39 is formed in one side of the fixing plate 25 close to the housing 29. One end of the outer wall of the guide rod 30 away from the driving block 28 is slidably engaged with the guide groove 39. The lower part of one side of the housing 29 close to the first conductive rod 6 is fixedly connected with one end of the driven rod 8 away from the driving rod 5. That is, during the process of pulling the driving rod 5 to move horizontally, the driving rod 5 will drive the housing 29 to move horizontally through the driven rod 8, thereby driving the driving block 28 to move horizontally. The middle of the lower end of the connecting block 18 is fixedly connected with an extension block 31. The lower end of the extension block 31 is fixedly connected with a balance rod 32. A moving block 27 is vertically slidably connected to the lower end of the balance rod 32. The top of the moving block 27 and the extension block 31 are elastically connected by a spring. The spring is sleeved on the outer wall of the balance rod 32. Both the extension block 31 and the balance rod 32 are horizontally slidably connected to the mounting plate 22. A horizontal groove slidably engaged with the outer wall of the moving block 27 is formed in the middle of one side of the lower end of the mounting plate 22 close to the second conductive rod 7. The upper part of one end of the horizontal groove away from the second conductive rod 7 is provided with a vertical groove. The horizontal width of the vertical groove is the same as the horizontal width of the moving block 27. The vertical groove and the horizontal groove communicate with each other to form an L-shaped groove, as Figure 11 shown. During the process of the driving block 28 moving horizontally, the driving block 28 will contact the side of the moving block 27 away from the rotating rod 11, thereby pushing the moving block 27 to move horizontally along the horizontal groove, and thus driving the connecting block 18 connected to the first isolation sleeve 16 to move horizontally through the moving block 27, the balance rod 32 and the extension block 31, thereby driving the first isolation sleeve 16 and the second isolation sleeve 17 to approach each other until the moving block 27 moves directly below the vertical groove. At this time, the second isolation sleeve 17 and the first isolation sleeve 16 are closely attached to each other to isolate the first contact 10 and the second contact 12.

[0040] As Figures 8 - 9As shown, when the moving block 27 moves to the connection of the horizontal groove and the vertical groove, at this time, after the side wall of the moving block 27 fits with the end of the horizontal groove close to the first conductive rod 6 and cannot continue to move horizontally. To prevent the moving block 27 from affecting the continued horizontal movement of the driving block 28, two vertical sliding connections are provided on the upper sides of the moving block 27 with limit shells 33. A limit groove 34 is provided in the middle of the inner cavity of the horizontal groove. The outer wall of the end of the limit shell 33 away from the one-way moving rod 37 is slidably matched with the inner cavity of the limit groove 34. During the horizontal movement of the moving block 27 along with the driving block 28, the limit shell 33 moves horizontally along the limit groove 34. A clamping groove 35 is provided at one end of the inner cavity of the limit groove 34 close to the vertical groove. The clamping groove 35 is farther away from the position of the moving block 27 relative to the limit groove 34, that is, the horizontal distance between the symmetric clamping grooves 35 is greater than the horizontal distance between the symmetric limit grooves 34. The vertical height of the clamping groove 35 is less than the vertical height of the limit groove 34. A transition surface is provided between the limit groove 34 and the clamping groove 35, and the transition surface is inclined in the direction away from the moving block 27. The end of the limit shell 33 away from the limit groove 34 is in contact with the lower side wall of the balance rod 32. A limit rod 36 is horizontally slidably connected in the middle of the inner cavity of the limit groove 34. The limit rod 36 is elastically connected to the limit shell 33 by a spring. When the limit shell 33 is away from the clamping groove 35, at this time, the limit rod 36 is located in the inner cavity of the limit shell 33 and the end of the limit rod 36 away from the moving block 27 is in contact with the side wall of the limit groove 34. When the limit shell 33 moves to the transition surface, at this time, the limit rod 36 gradually extends out of the inner cavity of the limit shell 33 under the action of the elastic force and contacts the transition surface. Until the moving block 27 stops moving, at this time, the limit rod 36 moves into the clamping groove 35 under the action of the elastic force. At this time, the symmetric limit rods 36 are tightly attached to the clamping groove 35 under the action of the elastic force, so as to elastically limit the moving block 27 in the horizontal direction of the one-way moving rod through the symmetric limit rods 36.

[0041] As Figure 7As shown, a first inclined surface is provided at the lower part of one end of the moving block 27 away from the rotating rod 11, and a second inclined surface is provided at the upper part of one end of the driving block 28 close to the rotating rod 11. During the horizontal movement of the driving block 28, the second inclined surface approaches and fits with the first inclined surface, thereby pushing the moving block 27 to move horizontally. When the moving block 27 moves to directly below the vertical groove, at this time, the second inclined surface cooperates with the first inclined surface to push the moving block 27 to move vertically upward along the vertical groove until the upper end surface of the driving block 28 fits with the lower end surface of the moving block 27, and then the moving block 27 stops moving upward. After the driving block 28 is separated from the moving block 27, the moving block 27 moves downward to the junction of the horizontal groove and the vertical groove under the action of elastic force. A driven plate 23 is slidably connected to one side of the lower end of the mounting plate 22 away from the horizontal groove. A sliding groove for the driven plate 23 to slide is provided at the lower end of the mounting plate 22. One end of the driven plate 23 away from the moving block 27 is fixedly connected to the first rack 15. A driven block 24 is fixedly connected to the middle of one side of the lower end of the driven plate 23 away from the first rack 15. As the driving block 28 continuously moves away from the moving block 27, it gradually approaches the driven block 24 and pushes the driven block 24 to drive the driven plate 23 to move horizontally. The driven plate 23 will drive the first rack 15 to move horizontally, thereby driving the first gear 14 to rotate and then driving the rotating rod 11 and the first contact 10 to rotate horizontally. At this time, after the first contact 10 rotates horizontally, it moves away from the position where the second contact 12 is located. The first contact 10 and the second contact 12 are isolated through the second isolation sleeve 17 and the first isolation sleeve 16, thereby avoiding continuous generation of electric arcs during the process of the first contact 10 moving away from the second contact 12. When the disconnector is switched on and off, as the interval between the two electrodes increases, an electric arc will be generated in the air between the electrodes. The electric arc of the disconnector is an instantaneous spark generated when the current passes through some insulating media such as air, which is a self-sustaining gas conduction phenomenon. It is not until the interval between the electrodes increases to a certain extent that the electric arc can be extinguished.

[0042] As shown Figure 6 and Figure 10As shown, after the first rack 15 drives the first gear 14 to rotate 180°, the rotating rod 11 can no longer rotate at this time. The horizontal width of the driven plate 23 is greater than the horizontal width of the first gear 14. Therefore, after the first gear 14 rotates 180°, the side wall of the driven plate 23 will contact the outer wall of the first gear 14, so that the driven plate 23 can no longer drive the first rack 15 to move to drive the first gear 14 to rotate. At the lower sides of both ends of the guide groove 39 and directly below the side wall of the chute close to the second contact 12, a reset assembly for adjusting the position of the driving block 28 is provided. The reset assembly includes an arc groove 26. Both ends of the arc groove 26 are connected to the guide groove 39. The connection between the arc groove 26 close to the second contact 12 and the guide groove 39 is a connection port 38. A one-way moving rod 37 is rotatably connected to the side of the connection port 38 away from the second contact 12. The one-way moving rod 37 is in an inclined state. The horizontal length between both ends of the one-way moving rod 37 is greater than the horizontal length of the connection port 38. A notch is provided on the side of the connection port 38 close to the second contact 12. The vertical height of the notch is the same as the vertical height of the one-way moving rod 37. One end of the one-way moving rod 37 away from the connection port 38 is fixedly connected with a first magnetic pole. A second magnetic pole with the same magnetism as the first magnetic pole is provided at the bottom of the inner cavity of the notch. Due to the principle of like magnetic poles repelling each other, the one-way moving rod 37 will maintain a position away from the notch and keep an inclined state under the repulsive force of the first magnetic pole and the second magnetic pole. For the sake of distinction, "first" is added before the structures in the reset assemblies at both ends of the guide groove 39, and "second" is added before the structures in the reset assemblies at the middle position of the guide groove 39 for distinction.

[0043] When the driving block 28 drives the driven block 24 to synchronously approach the position where the first arc groove 26 is located, the guide rod 30 will synchronously approach the position where the first arc groove 26 is located along with the guide groove 39. When the guide rod 30 moves to the position of the first connection port 38, the side wall of the guide rod 30 contacts the side of the first one-way moving rod 37 close to the first connection port 38. Under the guiding action of the first one-way moving rod 37, the guide rod 30 will relatively move into the inner cavity of the first arc groove 26. The distance between the bottom of the inner cavity of the first arc groove 26 and the top of the guide rod 30 is the same as the distance between the top of the driving block 28 and the top of the housing 29. That is, after the guide rod 30 enters the inner cavity of the first arc groove 26, the driving block 28 will vertically move down along the inner cavity of the housing 29, so that the driving block 28 is separated from the driven block 24 and continues to move along the housing 29 in the direction of the driving rod 5. After the guide rod 30 crosses the bottom end of the inner cavity of the first arc groove 26, under the action of the elastic force and the guiding action of the first arc groove 26 on the guide rod 30, the driving block 28 will move up until the guide rod 30 returns to the inner cavity of the guide groove 39 through the connection between the end of the first arc groove 26 close to the driving rod 5 and the guide groove 39. At this time, the driving block 28 will cross the driven block 24 and be located on the side of the driven block 24 close to the driving rod 5.

[0044] That is, by pulling the drive rod 5, the housing 29 can be driven to move horizontally through the driven rod 8, so that the drive block 28 moving horizontally can push the moving block 27 to move synchronously. After the first isolation sleeve 16 and the second isolation sleeve 17 are in contact with each other to separate the first contact 10 and the second contact 12, the drive block 28 separates from the moving block 27 and approaches the position where the driven block 24 is located. When the driven block 24 is in the initial position, that is, when the drive block 28 has not pushed the driven block 24 to move, the vertical plane where the midpoint of the lower end face of the driven block 24 is located coincides with the vertical plane where the vertex of the second arc-shaped groove 26 is located. During the process of the drive block 28 approaching the driven block 24 and pushing it to move, the drive block 28 will contact the side of the second one-way moving rod 37 away from the second connection port 38, thereby pushing the second one-way moving rod 37 to rotate in the direction of the second arc-shaped groove 26. At this time, the second one-way moving rod 37 will not affect the movement of the guide rod 30. After the guide rod 30 contacts the first one-way moving rod 37 close to the drive rod 5, it will enter the first arc-shaped groove 26 close to the drive rod 5. At this time, the rotating rod 11 rotates 180° away from the second contact 12, so that after the drive block 28 moves downward and passes over the driven block 24, it moves to the side of the driven block 24 close to the drive rod 5. When the drive block 28 moves in the direction away from the drive rod 5, the drive block 28 will contact the side of the driven block 24 close to the drive rod 5, thereby pushing the driven block 24 to move in the direction away from the drive rod 5, driving the driven plate 23 and the first rack 15 to move, so that the rotating rod 11 rotates 180° in the direction close to the second contact 12. During the process of the first contact 10 rotating back with the rotating rod 11, the side wall of the conductive block 40 will contact the outer walls of the first isolation sleeve 16 and the second isolation sleeve 17 again and thus be lifted. During this process, the guide rod 30 contacts the side of the second one-way moving rod 37 close to the drive rod 5 and enters the second arc-shaped groove 26, and once again separates the drive block 28 from the driven block 24 and passes over the driven block 24 and returns to the guide groove 39 again, so that the drive block 28 contacts the side of the moving block 27 close to the drive rod 5 and pushes it to move, driving the first isolation sleeve 16 and the second isolation sleeve 17 to separate from each other, so that the conductive block 40 returns to the connection groove 13 under the action of gravity, completing the switch closing operation. And when the drive block 28 moves to the first one-way moving rod 37 away from the drive rod 5, after the guide rod 30 enters the first arc-shaped groove 26 away from the drive rod 5, it moves to the side of the moving block 27 away from the drive rod 5, which is convenient for driving the moving block 27 to move next time. By pushing and pulling the drive rod 5 to drive the driven rod 8 to move, before the first contact 10 and the second contact 12 are separated, the first contact 10 and the second contact 12 can be separated by the first isolation sleeve 16 and the second isolation sleeve 17, so as to avoid continuous generation of electric arcs when the distance between the first contact 10 and the second contact 12 is less than the arc extinguishing distance during the opening process.And after isolation, the rotating rod 11 is driven by the first rack 15 and the first gear 14 to drive the first contact 10 away from the position where the second contact 12 is located. When closing, after the first contact 10 rotates back to the initial position first, the first isolation sleeve 16 and the second isolation sleeve 17 move away from each other, thereby reducing the closing distance, shortening the time required for closing, and further reducing the time for generating an arc during closing, so as to minimize the damage caused by the arc as much as possible.

[0045] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0046] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. An isolating switch, characterized in that, It includes a base (1), an insulating column (2), a housing (3), and a driving component, a rotating component, a separating mechanism, a first conductive rod (6), a second conductive rod (7), a first contact (10), a second contact (12), a first insulating sleeve (16) and a second insulating sleeve (17) arranged inside the housing (3). The insulating column (2) is arranged between the base (1) and the housing (3). One end of the driving component passes through the housing (3), and the other end is connected to the separating mechanism. The driving component is used to drive the separating mechanism to move. The first conductive rod (6) and the second conductive rod (7) are respectively installed on opposite sides of the inner cavity of the housing (3). The first contact (10) is arranged at one end of the first conductive rod (6), and the second contact (12) is arranged at one end of the second conductive rod (7). The rotating component is respectively connected to the separating mechanism and the first contact (10). The rotating component is used to drive the first contact (10) to rotate horizontally relative to the housing (3) under the action of the movement of the separating mechanism. The first insulating sleeve (16) is arranged on the outer surface of one end of the second contact (12) and contacts with one end of the second conductive rod (7). The second insulating sleeve (17) is arranged on the side surface of one end of the first conductive rod (6) and corresponds to the position of the first insulating sleeve (16).

2. The disconnector according to claim 1, characterized in that, The driving component includes a driving rod (5) and a driven rod (8). One end of the driving rod (5) passes through the housing (3), the other end of the driving rod (5) is connected to one end of the driven rod (8), and the other end of the driven rod (8) is connected to the separating mechanism.

3. An isolating switch according to claim 1, characterized in that, The rotating component includes a rotating rod (11), a first gear (14) and a first rack (15) meshing with the first gear (14). One end of the rotating rod (11) is rotatably connected to one end of the first contact (10). The other end of the rotating rod (11) passes through one end of the first conductive rod (6) and is connected to the first gear (14). The first gear (14) is also connected to the first rack (15). The first rack (15) is also connected to the separating mechanism. The first gear (14) and the first gear (14) are used to drive the rotating rod (11) to rotate when the separating mechanism moves. The rotating rod (11) is used to drive the first contact (10) to rotate under the drive of the first gear (14) and the first rack (15).

4. The disconnector according to claim 3, characterized in that, It also includes a conductive block (40) and a connecting groove (13). The conductive block (40) is arranged at the other end of the first contact (10). The connecting groove (13) is arranged at the other end of the second contact (12). The connecting groove (13) is used to be snap-connected with the conductive block (40).

5. An isolating switch according to claim 1, characterized in that, The separation mechanism includes a mounting block (9), a fixing plate (25), a mounting plate (22), a connecting block (18), a second gear (19), and a second rack (20) and a third rack (21) that mesh with the second gear (19). The mounting block (9) is installed on the inner wall of the sleeve (3). At the upper end of the mounting block (9), symmetrically arranged fixing plates (25) are installed. The symmetric fixing plates (25) are jointly connected to the mounting plate (22). At the upper end of the mounting plate (22), symmetrically arranged connecting blocks (18) are installed. The symmetrically arranged connecting blocks (18) are respectively connected to the first isolation sleeve (16) and the second isolation sleeve (17). At the upper end of the mounting plate (22), there are also provided the second gear (19), the second rack (20), and the third rack (21). The second rack (20) and the third rack (21) are respectively arranged on both sides of the second gear (19). And the second rack (20) is also connected to the connecting block (18) connecting the first isolation sleeve (16). The third rack (21) is also connected to the connecting block (18) connecting the second isolation sleeve (17). The connecting block (18) is used to, when the separation mechanism moves, the first isolation sleeve (16) connected to the connecting block (18) push the second rack (20) to rotate. The second rack (20) drives the second gear (19) to rotate. The second gear (19) drives the third rack (21) to rotate. The third rack (21) drives the second isolation sleeve (17) to move.

6. The disconnector according to claim 5, characterized in that, The separation mechanism further includes a housing (29), a driving block (28), a guide rod (30), a guide groove (39), an extension block (31), a balance rod (32), and a moving block (27). The housing (29) is installed on the mounting block (9) and is connected to the driving assembly. The driving block (28) is vertically and slidably connected to the housing (29). On both lower sides of the driving block (28), the guide rods (30) are connected. The guide rods (30) are also vertically and slidably connected to the inner cavity side wall of the housing (29). The guide groove (39) is opened on one side of the fixing plate (25) close to the housing (29) and is slidably engaged with one end of the guide rod (30) away from the driving block (28). The housing (29) is used for the driving assembly to drive the driving block (28) to move through the housing (29). The upper end of the extension block (31) is installed at the lower end of the connecting block (18), and the lower end of the extension block (31) is connected to the upper end of the balance rod (32). The lower end of the balance rod (32) is vertically and slidably connected to the moving block (27). A spring is sleeved on the outer surface of the balance rod (32) to elastically connect the moving block (27) and the extension block (31). The extension block (31) and the balance rod (32) are also slidably connected to the mounting plate (22).

7. An isolating switch according to claim 6, characterized in that, The separating mechanism further includes a reset component, and the reset component includes an arc-shaped groove (26), a one-way moving rod (37), a connection port (38), a notch, a first magnetic pole and a second magnetic pole. Both ends of the arc-shaped groove (26) are connected to the guiding groove (39). A connection port (38) is provided at the connection of one end of the arc-shaped groove (26) and the guiding groove (39). The connection port (38) is rotatably connected to the one-way moving rod (37). A notch is provided on one side of the connection port (38), and the vertical height of the notch is the same as the vertical height of the one-way moving rod (37). The first magnetic pole is installed at one end of the one-way moving rod (37), and the second magnetic pole is installed in the inner cavity of the notch. The first magnetic pole and the second magnetic pole have the same magnetism, and are used to make the one-way moving rod (37) move away from the notch and maintain an inclined state by the mutual repulsion of like magnetic poles.

8. A disconnector according to claim 6, characterized in that, The separating mechanism further includes a horizontal groove and a vertical groove. The horizontal groove is provided at the lower end of the mounting plate (22) and is slidably matched with the outer wall of the moving block (27). The vertical groove is provided at the upper part of one end of the horizontal groove far from the second conductive rod (7), and the horizontal width of the vertical groove is the same as the horizontal width of the moving block (27). The vertical groove and the horizontal groove communicate with each other to form an L-shaped groove.

9. A disconnector according to claim 8, characterized in that, The separating mechanism further includes a limiting shell (33), a limiting groove (34), a clamping groove (35), and a limiting rod (36). The limiting shell (33) is slidably connected to the upper sides of both sides of the moving block (27) and is attached to the lower side wall of the balance rod (32). The limiting groove (34) is provided in the inner cavity of the horizontal groove and is slidably matched with the limiting shell (33). The limiting rod (36) is slidably connected in the inner cavity of the limiting groove (34). The limiting rod (36) and the limiting shell (33) are elastically connected by a spring. The clamping groove (35) is provided in the limiting groove (34), and a transition surface is provided on the clamping groove (35). The transition surface is inclined in the direction away from the moving block (27). The clamping groove (35) is used to closely fit with the limiting rod (36) under the action of elastic force to elastically limit the moving block (27) through the limiting rod (36).

10. A disconnector according to claim 5, characterized in that, The separating mechanism further includes a driven plate (23), a driven block (24), and a sliding groove. One end of the driven plate (23) is slidably connected to the lower end of the mounting plate (22), and a driven block (24) for driving the driven plate (23) to move is provided at the lower part of one end of the driven plate (23). The other end of the driven plate (23) is connected to the first rack (15). The sliding groove is provided at the lower end of the mounting plate (22) and is slidably matched with the driven plate (23).

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