CN108550492B - High-voltage isolating switch - Google Patents
High-voltage isolating switch Download PDFInfo
- Publication number
- CN108550492B CN108550492B CN201810602857.9A CN201810602857A CN108550492B CN 108550492 B CN108550492 B CN 108550492B CN 201810602857 A CN201810602857 A CN 201810602857A CN 108550492 B CN108550492 B CN 108550492B
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- blade
- contact
- insulating column
- mounting
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- 230000000149 penetrating effect Effects 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 10
- 239000004568 cement Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
Landscapes
- Switch Cases, Indication, And Locking (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
The invention relates to a high-voltage isolating switch which comprises a first insulating column, a second insulating column, a base, a first gate blade, a second gate blade, a first contact blade and a second contact blade, wherein a first mounting blade is fixedly arranged at the upper end of the first insulating column, a second mounting blade is fixedly arranged at the upper end of the second insulating column, the first contact blade, the second contact blade, the first mounting blade and the second mounting blade are all sheet bodies arranged in the vertical direction, the first contact blade is fixedly connected with the first mounting blade, the second contact blade is fixedly connected with the second mounting blade, and the first contact blade and the second contact blade are all inserted between the first gate blade and the second gate blade. By adopting the technical scheme, the invention provides the high-voltage isolating switch, which not only can save the material cost of the contact piece and the hinging seat, but also can reduce the interval between the first switch piece and the second switch piece, increase the contact surface between the two contact pieces and the first switch piece and the second switch piece, and improve the stability of the isolating switch.
Description
Technical Field
The invention relates to a high-voltage isolating switch.
Background
The high-voltage isolating switch is an important switching device in the electric system of a power plant and a transformer substation, and is matched with the high-voltage circuit breaker for use, and has the main functions of ensuring the safety of the high-voltage electric appliance and the device during maintenance work, playing the role of isolating voltage, being incapable of using and cutting off, inputting load current and switching-on/off short-circuit current, being only used for certain switching operations without generating strong electric arcs, namely not having an arc extinguishing function; the voltage classes are divided into an indoor type and an outdoor type according to different installation places, and are divided into a single column type, a double column type and a three column type according to the number of insulating columns, and each voltage class is provided with optional equipment.
As shown in fig. 1, the conventional high-voltage isolating switch comprises a first insulating column 1', a second insulating column 2', a base 3', a first gate blade 4', a second gate blade 5', wherein the first insulating column 1' and the second insulating column 2' are mounted on the base 3' at intervals, a first contact blade 6' is arranged at the upper end of the first insulating column 1', a second contact blade 7' is arranged at the upper end of the second insulating column 2', the first gate blade 4' and the second gate blade 5' are oppositely arranged, one end of the first gate blade 4', one end of the second gate blade 5' are hinged with the first contact blade 6', a locking device 8' is arranged between the other end of the first gate blade 4', the second gate blade 5' and the second contact blade 7', and in order to ensure that the two contact blades can be well fixed at the upper end of the insulating column, the first contact blade 6', the second contact blade 7' are both in an L shape, the side walls 61', 71' along the horizontal direction in the two contact blades are fixedly connected with the corresponding first insulating column 1', the second insulating column 2', and the two side walls 62', 72' along the vertical direction in the two contact blades are respectively located between the first gate blade 4' and the second gate blade 5 '.
However, the high-voltage isolating switch with the structure has at least the following defects: (1) The two contact pieces are arranged in an L-shaped manner, so that the size is large, the material is increased, and the production cost is increased; (2) The widths of the two contact pieces are large, so that the interval between the first brake blade and the second brake blade is large; (3) The front end face and the rear end face of the side wall along the vertical direction in the two contact sheets are respectively contacted with the first brake blade and the second brake blade, so that the contact surface is narrow, and the stability of the isolating switch is poor; (4) Because the thickness of the side wall of the first contact piece along the vertical direction is thin, a hinge seat is required to be installed on the first contact piece, and the hinge seat is utilized to realize the hinge of the first contact piece and one ends of the first brake blade and the second brake blade, so that materials are additionally added, and the cost is increased.
Disclosure of Invention
The purpose of the invention is that: in order to overcome the defects of the prior art, the invention provides the high-voltage isolating switch, which not only can save the material cost of the contact piece and the hinging seat, but also can reduce the interval between the first switch blade and the second switch blade, increase the contact surface between the two contact pieces and the first switch blade and the second switch blade, and improve the stability of the isolating switch.
The technical scheme of the invention is as follows: the high-voltage isolating switch comprises a first insulating column, a second insulating column, a base, a first gate blade and a second gate blade, wherein the first insulating column and the second insulating column are installed on the base at intervals; the locking device comprises a locating plate and a locking plate, wherein the locating plate is fixedly arranged between the first brake blade and the second brake blade, the locking plate is hinged with the locating plate, a locking hook is arranged at one end of the locking plate, a reset spring is arranged between the other end of the locking plate and the locating plate, a protruding block is arranged on the second contact plate towards the locking hook position, and the locking hook is arranged at the lower end of the protruding block.
By adopting the technical scheme, the first contact piece is fixed on the first insulating column through the first mounting piece, the second contact piece is fixed on the second insulating column through the second mounting piece, and the first contact piece, the second contact piece, the first mounting piece and the second mounting piece are all sheet bodies arranged along the vertical direction, so that the material cost of the two contact pieces can be saved, and the interval between the first brake blade and the second brake blade is shortened; the first contact piece and the second contact piece are inserted between the first brake blade and the second brake blade to form surface contact, so that the contact surface between the two contact pieces and the first brake blade and the contact surface between the two contact pieces and the second brake blade can be increased, and the stability of the isolating switch is improved; in addition, when one end of the first switch blade and one end of the second switch blade are hinged with the first contact piece, a hinge seat is not required to be arranged, and the hinge seat is directly hinged with the front side wall and the rear side wall of the first contact piece, so that the material cost of the hinge seat is saved, and the hinge seat is convenient to install and simple in structure.
The invention is further provided with: the locating piece, the first blade and the second blade on corresponding position wear to be equipped with first bolt, the head of first bolt is contradicted with first blade, the cover is equipped with first nut on the first bolt, is equipped with first spring between first nut and the second blade, first spring cover is established on first bolt, still the cover is equipped with the lock nut that is used for extrudeing the locating piece on first blade on the first bolt, lock nut is located between first blade and the second blade.
By adopting the further arrangement, the positioning piece can be fixed between the first brake blade and the second brake blade through the cooperation of the first bolt and the locking nut; the cooperation of first bolt, first nut and first spring can extrude the second contact piece elasticity between first plug blade and second plug blade for the second contact piece is inseparabler with first plug blade, second plug blade contact, and stability is good.
Still further, the present invention provides: the locking piece is 7-shaped, the positioning piece comprises a substrate, the first bolt is arranged on the substrate in a penetrating mode, the substrate is obliquely extended to one side of the second contact piece, and a connecting piece is arranged on the substrate in an extending mode, and the corner position of the locking piece is hinged to the connecting piece.
By adopting the further arrangement, the connecting sheet is obliquely arranged, so that the locking hook on the locking sheet can swing by a certain amplitude when being separated from the convex block to unlock, and cannot contact with the first bolt penetrating through the substrate, thereby ensuring stable unlocking performance.
Still further, the present invention is provided with: the first contact piece, the first brake blade and the second brake blade are correspondingly provided with second bolts in a penetrating mode, the heads of the second bolts are in contact with the first brake blade, second nuts are sleeved on the second bolts, second springs are arranged between the second nuts and the second brake blade, and the second springs are sleeved on the second bolts.
Adopt above-mentioned still further setting, through the cooperation of second bolt, second nut and second spring both can realize the articulated of first plug blade, the one end and the first contact piece of second plug blade, can extrude first contact piece elasticity again between first plug blade and second plug blade for first contact piece is inseparabler with first plug blade, second plug blade contact, and stability is good.
Still further, the present invention is provided with: the locating piece on be equipped with the through-hole, the locking piece on extend to the through-hole in have operating portion.
By adopting the above arrangement, the operation part can conveniently drive the locking piece to swing through the special tool, so that the locking hook on the locking piece is separated from the boss for unlocking, and the operation is convenient.
Still further, the present invention is provided with: the second mounting piece is provided with a limiting step for limiting the downward rotation position of the first brake blade or the second brake blade when the first brake blade or the second brake blade is locked with the second contact piece.
By adopting the further arrangement, when the second mounting piece is arranged at the position corresponding to one side of the first brake blade, the limiting step limits the downward rotation position of the first brake blade when the first brake blade is locked with the second contact piece; when the second mounting piece is mounted at a position corresponding to one side of the second shutter piece, the limiting step limits the position of the second shutter piece which rotates downwards when being locked with the second contact piece, so that the first shutter piece or the second shutter piece is prevented from colliding with the second insulation column.
Still further, the present invention is provided with: the first mounting piece is provided with an arc abutting surface for abutting against the first brake blade or the second brake blade after the first brake blade or the second brake blade and the second contact piece are unlocked.
By adopting the further arrangement, when the first mounting piece is arranged at one side position corresponding to the first brake blade, the arc abutting surface is used for abutting the first brake blade after unlocking the second contact piece; when the first mounting piece is mounted at one side position corresponding to the second shutter piece, the arc abutting surface is used for abutting the second shutter piece after unlocking the second contact piece, so that the first shutter piece or the second shutter piece is prevented from colliding with the first insulation column.
Still further, the present invention is provided with: the first contact piece is provided with two mounting holes which are staggered left and right, the first mounting piece is provided with a positioning hole corresponding to the two mounting holes, a third bolt is arranged in the positioning hole and the mounting hole in a penetrating way, and a third nut is sleeved on the third bolt to form the fixed connection between the first contact piece and the first mounting piece; the fixing mode of the second contact piece and the second mounting piece is the same as the fixing mode of the first contact piece and the first mounting piece.
By adopting the further arrangement, the fixing mode of the second contact piece and the second mounting piece and the fixing mode of the first contact piece and the first mounting piece are firm in fixing, the strength of the first contact piece and the second contact piece can be increased, the width of the first contact piece and the second contact piece along the vertical direction is reduced, and the whole structure is more compact.
Still further, the present invention is provided with: the first insulating column and the second insulating column are made of ceramics, the upper end of the first insulating column is provided with a first cover plate, the upper end of the second insulating column is provided with a second cover plate, the first mounting piece downwards extends to form a first fixing piece, the first fixing piece penetrates through the first cover plate to extend into the first insulating column, the first mounting piece is integrated with or fixedly connected with the first cover plate, the first fixing piece is poured into the first insulating column, the second mounting piece downwards extends to form a second fixing piece, the second fixing piece downwards penetrates through the second cover plate to extend into the second insulating column, the second mounting piece is integrated with or fixedly connected with the second cover plate, the second fixing piece is poured into the second insulating column, and a plurality of grooves are formed in the side walls of the first fixing piece and the second fixing piece.
By adopting the further arrangement, the first cover plate and the second cover plate can be used for conveniently mounting the first mounting piece and the second mounting piece on the first insulating column and the second insulating column respectively, and then the first fixing piece and the second fixing piece are respectively poured into the first insulating column and the second insulating column to form fixation, so that the processing is convenient, and the fixation is firm; the arrangement of the grooves can prevent the first fixing piece and the second fixing piece from being separated from the first insulating column and the second insulating column respectively, so that the fixing is firmer.
Still further, the present invention is provided with: the first insulating column and the second insulating column comprise a column body and an insulating sleeve sleeved outside the column body, a first cover plate is arranged at the upper end of the first insulating column, a second cover plate is arranged at the upper end of the second insulating column, a first mounting piece is integrated with or fixedly connected with the first cover plate, a second mounting piece is integrated with or fixedly connected with the second cover plate, the first cover plate is fixedly connected with the column body of the first insulating column, and the second cover plate is fixedly connected with the column body of the second insulating column.
By adopting the arrangement, the first cover plate and the second cover plate can be conveniently arranged on the first insulating column and the second insulating column respectively, and the first cover plate and the second cover plate are respectively fixed with the column body of the first insulating column and the column body of the second insulating column, so that the installation is convenient, and the structure is simple.
Drawings
FIG. 1 is a block diagram of a prior art high voltage isolator;
FIG. 2 is a block diagram of an embodiment of the present invention when two insulation columns are in a first mode;
FIG. 3 is a diagram showing the structure of the cooperation of the lock hook and the bump according to an embodiment of the present invention;
FIG. 4 shows a structure of a locking device according to an embodiment of the present invention;
FIG. 5 is a block diagram of a spacer according to an embodiment of the present invention;
FIG. 6 is a block diagram of a locking tab in accordance with an embodiment of the invention;
FIG. 7 is a diagram illustrating a first contact patch configuration in accordance with an embodiment of the present invention;
FIG. 8 is a diagram of a second contact block in accordance with an embodiment of the present invention;
FIG. 9 is a diagram showing a first mounting plate and a first cover plate according to an embodiment of the present invention;
FIG. 10 is a diagram showing a second mounting plate and a second cover plate according to an embodiment of the present invention;
FIG. 11 is an overall construction diagram of the case where two insulation columns are employed in the second mode;
FIG. 12 is a view showing the structure of the first mounting tab and the first cover plate when two insulating columns are in the second mode;
Fig. 13 is a view showing a structure of the second mounting piece and the second cover plate when the two insulation columns adopt the second mode.
Detailed Description
As shown in fig. 1-10, a high-voltage isolating switch comprises a first insulating column 1, a second insulating column 2, a base 3, a first gate blade 4 and a second gate blade 5, wherein the first insulating column 1 and the second insulating column 2 are installed on the base 3 at intervals, the first insulating column 1 and the second insulating column 2 are fixed with the base 3 through bolts and nuts, or can be fixed on the base 3 in other manners such as clamping, the upper end of the first insulating column 1 is provided with a first contact blade 6, the upper end of the second insulating column 2 is provided with a second contact blade 7, the first gate blade 4 and the second gate blade 5 are oppositely arranged along the transverse direction, one ends of the first gate blade 4 and the second gate blade 5 are hinged with the first contact blade 6, a locking device 8 is arranged between the other ends of the first gate blade 4 and the second gate blade 5 and the second contact blade 7, the upper end of the first insulating column 1 is fixedly provided with a first mounting sheet 9, the upper end of the second insulating column 2 is fixedly provided with a second mounting sheet 10, the first contact sheet 6, the second contact sheet 7, the first mounting sheet 9 and the second mounting sheet 10 are all sheet bodies arranged along the vertical direction, the first contact sheet 6 is fixedly connected with the first mounting sheet 9, the second contact sheet 7 is fixedly connected with the second mounting sheet 10, the first contact sheet 6 and the second contact sheet 7 are both inserted between the first gate sheet 4 and the second gate sheet 5 to form surface contact, so that the material cost of the two contact sheets can be saved, the interval between the first gate sheet 4 and the second gate sheet 5 is reduced, the contact surface between the two contact sheets and the first gate sheet 4 and the second gate sheet 5 can be increased, and the stability of the isolating switch is improved; the locking device 8 comprises a positioning plate 81 and a locking plate 82, wherein the positioning plate 81 is fixedly arranged between the first brake blade 4 and the second brake blade 5, the locking plate 82 is hinged with the positioning plate 81, a locking hook 821 is arranged at one end of the locking plate 82, a return spring 83 is arranged between the other end of the locking plate 82 and the positioning plate 81, a bump 71 is arranged on the second contact plate 7 towards the position of the locking hook 821, and the locking hook 821 is hooked at the lower end of the bump 71 to form locking.
In the specific embodiment of the invention, the positioning plate 81, the first shutter blade 4 and the second shutter blade 5 are correspondingly provided with the first bolt 11 in a penetrating way, the head part of the first bolt 11 is in contact with the first shutter blade 4, the first bolt 11 is sleeved with the first nut 12, the first spring 13 is arranged between the first nut 12 and the second shutter blade 5, the first spring 13 is sleeved on the first bolt 11, the first bolt 11 is also sleeved with the locking nut 14 for extruding the positioning plate 81 on the first shutter blade 4, the locking nut 14 is positioned between the first shutter blade 4 and the second shutter blade 5, the first bolt 11 is provided with two side by side, the first nut 12, the first spring 13 and the locking nut 14 are correspondingly provided with two, and more groups can be naturally arranged according to the requirement; the locking piece 82 is in a 7-shaped arrangement, the positioning piece 81 comprises a substrate 811, the first bolt 11 is arranged on the substrate 811 in a penetrating mode, a connecting piece 812 is obliquely extended to one side of the second contact piece 7 on the substrate 811, the corner position of the locking piece 82 is hinged with the connecting piece 812 through a hinge shaft 84, the connecting piece 812 is obliquely arranged, a locking hook 821 on the locking piece 82 can swing by a certain amplitude when being separated from a bump for unlocking, and the locking hook can not be contacted with the first bolt 11 arranged on the substrate 811 in a penetrating mode, so that stable unlocking performance is ensured.
The specific hinging manner of one end of the first shutter blade 4 and one end of the second shutter blade 5 with the first contact blade 6 is that a second bolt 15 is arranged at corresponding positions on the first contact blade 6, the first shutter blade 4 and the second shutter blade 5 in a penetrating manner, the head of the second bolt 15 is in contact with the first shutter blade 4, a second nut 16 is sleeved on the second bolt 15, a second spring 17 is arranged between the second nut 16 and the second shutter blade 5, and the second spring 17 is sleeved on the second bolt 15. The first brake blade 4 and one end of the second brake blade 5 are hinged with the first contact piece 6 through the cooperation of the second bolt 15, the second nut 16 and the second spring 17, and the first contact piece 6 can be elastically extruded between the first brake blade 4 and the second brake blade 5, so that the first contact piece 6 is in closer contact with the first brake blade 4 and the second brake blade 5, and the stability is good. When the first switch blade 4 and the second switch blade 5 are hinged with the first contact piece 6, the hinge seat is not required to be arranged, and the hinge seat is directly hinged with the front side wall and the rear side wall of the first contact piece 6, so that the material cost of the hinge seat is saved, and the hinge seat is convenient to install and simple in structure.
The locating plate 81 is provided with a through hole 810, and the locking plate 82 extends into the through hole 810 to form an operation part 820, so that the locking plate 82 can be driven to swing by a special tool, and a locking hook 821 on the locking plate 82 is separated from the boss 71 to be unlocked conveniently, and the operation is convenient.
In the specific embodiment of the invention, the first mounting plate 9 and the second mounting plate 10 are both arranged at one side position corresponding to the second brake blade 5, and the second mounting plate 10 is provided with a limiting step 101 for limiting the downward rotation position of the second brake blade 5 when the second brake blade 5 is locked with the second contact blade 7; the first mounting piece 9 is provided with an arc abutting surface 91 for abutting against the second brake blade 5 after unlocking the second brake blade 5 and the second contact piece 7. Of course, the first mounting piece 9 and the second mounting piece 10 may be mounted at positions corresponding to one side of the first shutter piece 4, and the first shutter piece 4 may be correspondingly limited by the limiting step, and the circular arc abutting surface may be used for abutting against the first shutter piece 4.
In the embodiment of the invention, the fixing mode of the second contact piece 7 and the second mounting piece 10 is the same as the fixing mode of the first contact piece 6 and the first mounting piece 9, specifically, two mounting holes 61 and 62 are arranged on the first contact piece 6, the two mounting holes 61 and 62 are staggered left and right, positioning holes 92 and 93 are arranged on the first mounting piece 9 corresponding to the two mounting holes, a third bolt 18 is arranged in the positioning holes and the mounting holes in a penetrating way, and a third nut is sleeved on the third bolt 18 to form the fixed connection between the first contact piece 6 and the first mounting piece 9. Of course, the contact piece and the mounting piece can also be fixed by adopting a welding mode, a clamping mode and the like.
The first insulating column 1 and the second insulating column 2 may be arranged in two ways, the first is: the first insulation column 1 and the second insulation column 2 are made of ceramics, a first cover plate 20 is arranged at the upper end of the first insulation column 1, a second cover plate 30 is arranged at the upper end of the second insulation column 2, a first fixing plate 90 is arranged on the side wall of the first fixing plate 90 in a downward extending mode, the first fixing plate 90 penetrates through the first cover plate 20 to extend into the first insulation column 1, the first fixing plate 9 is welded with the first cover plate 20, the first fixing plate 20 is poured into the first insulation column 1 through cement, a second fixing plate 100 is arranged on the second fixing plate 10 in a downward extending mode, the second fixing plate 100 penetrates through the second cover plate 30 to extend into the second insulation column 2, the second fixing plate 10 is welded with the second cover plate 30, the second fixing plate 100 is poured into the second insulation column 2 through cement, and a plurality of grooves 901 and 1001 are formed in the side walls of the first fixing plate 90 and the second fixing plate 100, wherein the first fixing plate 20 and the second cover plate 30 can be convenient to respectively install the first fixing plate 9 and the second fixing plate 10 on the first insulation column 1 and the second insulation column 2, the second fixing plate 100 are firmly fixed in the second insulation column 2, and the first insulation column 100 and the second insulation column 2 are formed firmly, and the insulation column is convenient to process; the arrangement of the grooves can prevent the first fixing piece and the second fixing piece from being separated from the first insulating column 1 and the second insulating column 2 respectively, so that the fixing is firmer.
As shown in fig. 11-13, the second is: the first insulating column 1 and the second insulating column 2 can also adopt columns 1A and 2A, then, insulating sleeves 1B and 2B are sleeved outside the columns 1A and 2A, the insulating sleeve B can be made of silica gel and the like, a first cover plate 20 'is arranged at the upper end of the first insulating column 1, a second cover plate 30' is arranged at the upper end of the second insulating column 2, a first mounting piece 9 is welded with the first cover plate 20', a second mounting piece 10 is welded with the second cover plate 30', the first cover plate 20 'is fixedly connected with the column 1A of the first insulating column 1 through bolts 40', and the second cover plate 30 'is fixedly connected with the column 2A of the second insulating column 2 through bolts 40'.
Claims (6)
1. The utility model provides a high voltage isolator, including first insulating column, the second insulating column, the base, first plug blade, the second plug blade, first insulating column and second insulating column interval mount are on the base, the upper end of first insulating column is equipped with first contact piece, the upper end of second insulating column is equipped with the second contact piece, first plug blade sets up with the second plug blade is relative, the one end and the first contact piece of first plug blade, the second plug blade are articulated, be equipped with locking device between the other end and the second contact piece of first plug blade, second plug blade, its characterized in that: the upper end of the first insulating column is fixedly provided with a first mounting sheet, the upper end of the second insulating column is fixedly provided with a second mounting sheet, the first contact sheet, the second contact sheet, the first mounting sheet and the second mounting sheet are sheet bodies arranged along the vertical direction, the first contact sheet is fixedly connected with the first mounting sheet, the second contact sheet is fixedly connected with the second mounting sheet, and the first contact sheet and the second contact sheet are inserted between the first brake blade and the second brake blade to form surface contact; the locking device comprises a positioning plate and a locking plate, wherein the positioning plate is fixedly arranged between the first brake blade and the second brake blade, the locking plate is hinged with the positioning plate, a locking hook is arranged at one end of the locking plate, a reset spring is arranged between the other end of the locking plate and the positioning plate, a convex block is arranged on the second contact plate towards the locking hook position, and the locking hook is arranged at the lower end of the convex block; the positioning piece, the first shutter blade and the second shutter blade are correspondingly provided with first bolts in a penetrating way, the heads of the first bolts are in contact with the first shutter blade, first nuts are sleeved on the first bolts, first springs are arranged between the first nuts and the second shutter blade, the first springs are sleeved on the first bolts, locking nuts for extruding the positioning piece on the first shutter blade are sleeved on the first bolts, and the locking nuts are positioned between the first shutter blade and the second shutter blade; the locking piece is arranged in a 7 shape, the positioning piece comprises a substrate, the first bolt is penetrated on the substrate, a connecting piece is obliquely extended on the substrate towards one side of the second contact piece, and the corner position of the locking piece is hinged with the connecting piece; the first contact piece, the first brake blade and the second brake blade are correspondingly provided with second bolts in a penetrating way, the heads of the second bolts are in contact with the first brake blade, second nuts are sleeved on the second bolts, second springs are arranged between the second nuts and the second brake blade, and the second springs are sleeved on the second bolts; the locating piece on be equipped with the through-hole, the locking piece on extend to the through-hole in have operating portion.
2. The high voltage isolator as in claim 1, wherein: the second mounting piece is provided with a limiting step for limiting the downward rotation position of the first brake blade or the second brake blade when the first brake blade or the second brake blade is locked with the second contact piece.
3. The high voltage isolator as in claim 1, wherein: the first mounting piece is provided with an arc abutting surface for abutting against the first brake blade or the second brake blade after the first brake blade or the second brake blade and the second contact piece are unlocked.
4. The high voltage isolator as in claim 1, wherein: the first contact piece is provided with two mounting holes which are staggered left and right, the first mounting piece is provided with a positioning hole corresponding to the two mounting holes, a third bolt is arranged in the positioning hole and the mounting hole in a penetrating way, and a third nut is sleeved on the third bolt to form the fixed connection between the first contact piece and the first mounting piece; the fixing mode of the second contact piece and the second mounting piece is the same as the fixing mode of the first contact piece and the first mounting piece.
5. The high voltage isolator as in claim 1, wherein: the first insulating column and the second insulating column are made of ceramics, the upper end of the first insulating column is provided with a first cover plate, the upper end of the second insulating column is provided with a second cover plate, the first mounting piece downwards extends to form a first fixing piece, the first fixing piece penetrates through the first cover plate to extend into the first insulating column, the first mounting piece is integrated with or fixedly connected with the first cover plate, the first fixing piece is poured into the first insulating column, the second mounting piece downwards extends to form a second fixing piece, the second fixing piece downwards penetrates through the second cover plate to extend into the second insulating column, the second mounting piece is integrated with or fixedly connected with the second cover plate, the second fixing piece is poured into the second insulating column, and a plurality of grooves are formed in the side walls of the first fixing piece and the second fixing piece.
6. The high voltage isolator as in claim 1, wherein: the first insulating column and the second insulating column comprise a column body and an insulating sleeve sleeved outside the column body, a first cover plate is arranged at the upper end of the first insulating column, a second cover plate is arranged at the upper end of the second insulating column, a first mounting piece is integrated with or fixedly connected with the first cover plate, a second mounting piece is integrated with or fixedly connected with the second cover plate, the first cover plate is fixedly connected with the column body of the first insulating column, and the second cover plate is fixedly connected with the column body of the second insulating column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810602857.9A CN108550492B (en) | 2018-06-12 | 2018-06-12 | High-voltage isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810602857.9A CN108550492B (en) | 2018-06-12 | 2018-06-12 | High-voltage isolating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108550492A CN108550492A (en) | 2018-09-18 |
| CN108550492B true CN108550492B (en) | 2024-06-11 |
Family
ID=63493645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810602857.9A Active CN108550492B (en) | 2018-06-12 | 2018-06-12 | High-voltage isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108550492B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3339037A (en) * | 1965-07-12 | 1967-08-29 | S & C Electric Co | High voltage switch construction |
| CN206628399U (en) * | 2017-03-29 | 2017-11-10 | 福建骐航实业有限公司 | A kind of strong high voltage isolator moving contact of contact performance |
| CN208336077U (en) * | 2018-06-12 | 2019-01-04 | 高电科技有限公司 | A kind of high voltage isolator |
-
2018
- 2018-06-12 CN CN201810602857.9A patent/CN108550492B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3339037A (en) * | 1965-07-12 | 1967-08-29 | S & C Electric Co | High voltage switch construction |
| CN206628399U (en) * | 2017-03-29 | 2017-11-10 | 福建骐航实业有限公司 | A kind of strong high voltage isolator moving contact of contact performance |
| CN208336077U (en) * | 2018-06-12 | 2019-01-04 | 高电科技有限公司 | A kind of high voltage isolator |
Non-Patent Citations (1)
| Title |
|---|
| GW16型高压隔离开关运动机理及常见故障分析;谢育鹏;黄冬林;刘涛;;电气时代;20160910(第09期);全文 * |
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| Publication number | Publication date |
|---|---|
| CN108550492A (en) | 2018-09-18 |
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