CN111681901A - Isolation switch - Google Patents
Isolation switch Download PDFInfo
- Publication number
- CN111681901A CN111681901A CN202010587449.8A CN202010587449A CN111681901A CN 111681901 A CN111681901 A CN 111681901A CN 202010587449 A CN202010587449 A CN 202010587449A CN 111681901 A CN111681901 A CN 111681901A
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- Prior art keywords
- block
- pressing block
- rotating shaft
- disconnecting link
- groove
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- 238000002955 isolation Methods 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 239000012212 insulator Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 23
- 238000012937 correction Methods 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 230000002746 orthostatic effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract 3
- 230000009471 action Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
- H01H21/14—Means for increasing contact pressure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/54—Lever switches with blade-type contact co-operating with one or two spring-clip contacts, e.g. knife switch
- H01H21/56—Lever switches with blade-type contact co-operating with one or two spring-clip contacts, e.g. knife switch making contact in one position only
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- Manufacture Of Switches (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
The invention discloses an isolation switch, which comprises a rotating shaft, an installation part and two insulators fixed on the surface of the installation part, wherein one ends of the two insulators, which are far away from the installation part, are respectively provided with a contact, one of the contacts is connected with a switch through the rotating shaft, and the rotating shaft is provided with a fastening and switching mechanism connected with the switch; when the disconnecting link is closed, the knife edge of the disconnecting link can directly clamp the contact, the disconnecting link can extrude the pressing block to enable the pressing block to be separated from the clamping block in the sliding square hole, the pressing block can directly clamp the disconnecting link after being pressed, and the lower pull spring can reset to pull the pressing block to move together, so that the knife edge of the disconnecting link is more tightly contacted with the contact.
Description
Technical Field
The embodiment of the invention relates to the technical field of model tests, in particular to an isolation switch.
Background
The isolation knife switch is the most used electrical appliance in high-voltage switch electrical appliances, the working principle and the structure of the isolation knife switch are simpler, but the isolation knife switch has large use amount and high requirement on the working reliability, and has larger influence on the design, the establishment and the safe operation of a substation and a power plant. The main characteristic of the knife switch is that it has no arc-extinguishing ability, and can only open and close the circuit under the condition of no load current.
Common isolation switch generally faces in the existing market, it because of directly exposing in the external world when using, so the fastener of switch tip on it, like the spring, the ageing phenomenon of corrosion very easily appears under the erosion that receives external environment for a long time, lead to fastener fastening dynamics not enough, easily blow the switch under the external strong wind environment for the not tight overheated phenomenon appears in edge of a knife closure, and the fastener of corrosion still can increase the degree of difficulty that the switch opened and shut, thereby the condition that the edge of a knife closure is not enough or the edge of a knife is promoted by the fastener and kick-backs very easily appears when making the switch close.
Disclosure of Invention
Therefore, the embodiment of the invention provides an isolation switch, which aims to solve the problems that in the prior art, a fastening piece at the end part of the switch is easy to rust and age under the corrosion of the external environment for a long time, so that the fastening strength of the fastening piece is insufficient, the rusted fastening piece can increase the opening and closing difficulty of the switch, and the switch is easy to have the situation that the knife edge is not closed sufficiently or the knife edge is pushed by the fastening piece to rebound when the switch is closed.
In order to achieve the above object, an embodiment of the present invention provides the following:
an isolation switch comprises a rotating shaft, a mounting part and two insulators fixed on the surface of the mounting part, wherein contacts are mounted at one ends, far away from the mounting part, of the two insulators, one of the contacts is connected with the switch through the rotating shaft, and a tractor is mounted on the other contact;
the tractor comprises an L-shaped supporting block connected with the contact, and the surface of the supporting block is provided with a square sliding hole; the sliding square hole is internally connected with a pressing block; a lower tension spring is mounted at the bottom of the pressing block, and one end of the lower tension spring, which is far away from the pressing block, is connected with the supporting block; a guide inclined plane is arranged on one side of the top of the pressing block;
a position correcting block is arranged on one side, far away from the disconnecting link, of the pressing block and is arranged in the sliding square hole; a clamping block which is used for being matched with the correcting block to lock the correcting block is arranged on the inner wall of the sliding square hole;
when the disconnecting link is switched on, the disconnecting link gradually extrudes one end, far away from the sliding square hole, of the pressing block, the pressing block is separated from the clamping block, the disconnecting link is along the guide inclined plane, the top of the pressing block moves to the bottom of the pressing block, the pressing block is separated from the clamping block, and the tension of the lower tension spring further orders about the pressing block to press the disconnecting link down, so that the disconnecting link is tightly attached to the contact.
Optionally, the inner wall of the sliding square hole is further provided with a position correction sliding groove for limiting the position correction block;
the correcting position sliding groove comprises a strip-shaped movable groove, a square groove is arranged at one end, close to the clamping block, of the movable groove, the groove width of the square groove is larger than that of the movable groove, a V-shaped transition groove is arranged between the square groove and the movable groove, and two ends of the transition groove are respectively communicated with the square groove and the movable groove;
an embedded block connected with the pressing block is arranged right below the position correcting block; the inserted block include with press the connection inserted block that the pressed block is connected, install main inserted column on the connection inserted block, main inserted column is kept away from the one end card of connecting the inserted block is located in the activity inslot, main inserted column can follow the activity inslot slides.
Optionally, a fastening and engaging mechanism is mounted on the rotating shaft; the fastening and engaging mechanism comprises two sealing sleeves respectively connected with two ends of the rotating shaft and deflection columns symmetrically arranged on two sides of the disconnecting link; the outer side walls at the two ends of the rotating shaft are provided with thread sections with opposite thread turning directions, and the sealing sleeve is in threaded connection with the thread sections;
the side wall of the disconnecting link is connected with an opening and closing sealer which can slide along the rotating shaft; the opening and closing sealer is arranged between the two sealing sleeves, and one end of the deflection column is arranged on the side wall of the disconnecting link;
in the process that the disconnecting link deflects to separate from the contact, the disconnecting link drives the deflection column to rotate around the rotating shaft, so that the sealing sleeve is driven to rotate around the rotating shaft, the sealing sleeve slides along the rotating shaft in a threaded manner, and the opening and closing sealer is pushed to fasten the disconnecting link.
Optionally, the opening and closing sealer includes two moving gear sleeves respectively screwed on the two thread sections, and a driving sleeve connected with the deflection column is sleeved on an outer side wall of each moving gear sleeve;
the lateral wall of the movable gear sleeve is provided with a plurality of driving gear blocks, the inner wall of the driving sleeve is provided with a clamping groove, the inner wall of the clamping groove is provided with a driving strip meshed with the driving gear blocks, and the spiral directions of the inner wall of the movable gear sleeve are opposite.
Optionally, one end of the movable gear sleeve, which is far away from the position sealing sleeve, is connected with a fastening spring sleeved on the rotating shaft;
the fastening spring is close to one end of the disconnecting link and is installed with a tight piece that pastes that the disconnecting link surface is connected, the other end of the fastening spring is installed the cover and is established in the pivot and with remove the correction ring that the tooth cover is connected, paste tight piece with correct and be connected with a plurality of restriction pieces between the ring.
Optionally, paste the tight piece including the cover establish in the pivot and with outer ring of pasting of switch surface connection, the adapter sleeve that is the I shape has been cup jointed to the inside wall of outer ring, the adapter sleeve is kept away from the one end of outer ring install a plurality of be U type and with switch internal surface connection's the shell fragment that pastes, paste the shell fragment and keep away from one side of outer ring install be used for with the guide piece that the contact is connected.
The embodiment of the invention has the following advantages:
according to the isolating switch, when the switch is closed, the knife edge of the switch can directly clamp the contact, the switch can extrude the pressing block to be separated from the clamping block in the sliding square hole, the switch can be directly clamped after the pressing block is pressed, the lower pull spring can reset to pull the pressing block to move together, and the contact between the knife edge of the switch and the contact is firmer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a left side view of an embodiment of the present invention;
FIG. 3 is a schematic structural view of a fastening engagement mechanism according to an embodiment of the present invention;
fig. 4 is a schematic view of a retractor according to an embodiment of the present invention.
In the figure:
1-a rotating shaft; 2-a mounting member; 3, an insulator; 4-fastening the engagement mechanism; 5-a tractor; 6-opening and closing the sealer; 7-a patch; 8-a position correction chute; 9-an insert;
301-a contact; 302-a knife switch;
401-position sealing sleeve; 402-deflection post;
501-supporting block; 502-sliding square hole; 503-pressing block; 504-lower tension spring; 505-an erasure block;
601-a restriction sheet; 602-moving the gear sleeve; 603-a driving sleeve; 604-driving the tooth block; 605-a snap groove; 606-a drive bar; 607-a fastening spring; 608-a corrective ring;
701-attaching a ring outside; 702-a connecting sleeve; 703-attaching an elastic sheet; 704-a guide plate;
801-active slot; an 802-transition trench; 803-square groove;
901-connecting the insert; 902-main stud.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1, the present invention provides an isolation switch, which includes a rotating shaft 1, a mounting member 2, and two insulators 3 fixed on the surface of the mounting member 2, wherein two contacts 301 are respectively installed at one end of each insulator 3 far away from the mounting member 2, one of the contacts 301 is connected with a switch 302 through the rotating shaft 1, a fastening and engaging mechanism 4 connected with the switch 302 is installed on the rotating shaft 1, and a retractor 5 is installed on the other contact 301.
As shown in fig. 1, 2 and 3, the fastening and engaging mechanism 4 includes two position-sealing sleeves 401 respectively connected to two ends of the rotating shaft 1 and deflecting columns 402 symmetrically disposed on two sides of the knife switch 302; the outer side walls of the two ends of the rotating shaft 1 are provided with thread sections with opposite thread turning directions, and the sealing sleeve 401 is in threaded connection with the thread sections;
the side wall of the knife switch 302 is connected with an opening and closing sealer 6 which can slide along the rotating shaft 1; the opening and closing sealer 6 is arranged between the two sealing sleeves 401, and one end of the deflection column 402 is arranged on the side wall of the disconnecting link 302;
in the process that the knife switch 302 deflects to be separated from the contact 301, the knife switch 302 drives the deflection column 402 to rotate around the rotating shaft 1, and further drives the position sealing sleeve 401 to rotate around the rotating shaft 1, the position sealing sleeve 401 slides along the rotating shaft 1 in a threaded manner, and the opening and closing sealer 6 is pushed to fasten the knife switch 302;
after the knife switch 302 deflects and disengages from the contact 301, the deflection column 402 is driven to move, the on-off closer 6 is pushed to slide along the thread of the rotating shaft 1 to fasten the knife switch 302 and the rotating shaft 1, and when the knife switch 302 deflects and closes, the tractor 5 is driven to move downwards to push the knife switch 302 to be tightly attached to the contact 301.
The isolating knife switch has the same using principle as the isolating knife switch which is common on the market, but the isolating knife switch can be used for isolating the knife by fastening the engaging and disengaging mechanism 4 and the tractor 5, the fastening part and the knife edge part of the knife switch 302 are fixed, the insert block which can prevent the knife switch 302 from loosening due to long service time or untight knife edge sealing, in the specific implementation, taking fig. 1 as an example, the knife switch 302 is pulled only by an insulating rod or the like, the knife switch 302 is rotated to perform the closing operation, the rotating knife switch 302 drives the deflection column 402 to move together, then the opening and closing sealer 6 is pushed to slide along the thread of the rotating shaft 1 to fasten the knife switch 302 and the rotating shaft 1, when the knife edge of the knife switch 302 contacts the contact 301, the retractor 5 is driven to move downwards, the knife switch 302 is pushed to be tightly attached to the contact 301, and the phenomenon of shaking or untight closing between the knife edge and the contact 301 is avoided.
As shown in fig. 2 and 3, the opening and closing device 6 includes two moving gear sleeves 602 respectively screwed on the two thread sections, and a driving sleeve 603 connected with the deflection column 402 is sleeved on the outer side wall of the moving gear sleeve 602;
the outer side wall of the movable gear sleeve 602 is provided with a plurality of driving gear blocks 604, the inner wall of the driving sleeve 603 is provided with a clamping groove 605, the inner wall of the clamping groove 605 is provided with a driving strip 606 meshed with the driving gear blocks 604, and the spiral directions of the inner walls of the two movable gear sleeves 602 are opposite;
the arrangement is that after the movable gear sleeve 602 moves for a certain distance, the meshing operation can be continued, the spiral turning directions of the inner walls of the two movable gear sleeves 602 are opposite, the side walls of the two ends of the rotating shaft 1 are provided with threads with opposite turning directions, the diameter of the position sealing sleeve 401 is larger than that of the movable gear sleeve 602, and the arrangement of the spirals of the rotating shaft 1 and the inner wall of the movable gear sleeve 602 is that when the movable gear sleeve 602 is driven, the spirals can slide to the knife switch 302 along the threads at the same time so as to perform the fastening operation.
When the knife switch 302 is closed and drives the deflection column 402 to rotate, the driving sleeve 603 is directly driven to move, the movable driving sleeve 603 drives the tooth block 604 and the movable tooth sleeve 602 to rotate through the engagement of the driving strip 606 with a rubber material, the movable tooth sleeve 602 moves towards the knife switch 302 along the screw thread when rotating, so that the knife switch 302 is clamped, and when the movable tooth sleeve 602 cannot move continuously, the driving strip 606 is compressed to move among the plurality of driving tooth blocks 604 until the knife switch 302 does not deflect. If the fastening spring 607 is not failed, the movable gear sleeve 602 will not move, and will move only when it fails, and the end of the knife switch 302 opened after the arrangement will not easily loosen, so it will not have the phenomenon of automatic reset, and once the knife switch 302 automatically resets, the knife edge dislocation will easily occur.
When the knife switch 302 is opened, the moving gear sleeve 602 is driven by the driving sleeve 603 moving in the opposite direction to move toward the position-sealing sleeve 401, and the position-sealing sleeve 401 is fixed on the rotating shaft 1, so that the moving gear sleeve 602 cannot easily leave the original position, i.e. the looseness of the end of the knife switch 302 cannot be easily changed.
As shown in fig. 3, one end of the movable gear sleeve 602 away from the position sealing sleeve 401 is connected with a fastening spring 607 sleeved on the rotating shaft 1;
one end of the fastening spring 607 close to the disconnecting link 302 is provided with a clinging sheet 7 connected with the surface of the disconnecting link 302, the other end of the fastening spring 607 is provided with a correction ring 608 which is sleeved on the rotating shaft 1 and is connected with the movable gear sleeve 602, a plurality of limiting sheets 601 are connected between the clinging sheet 7 and the correction ring 608, and the limiting sheets 609 are V-shaped, so that the limiting sheets have certain expansion and contraction force.
When the movable gear sleeve 602 moves towards the disconnecting link 302, the straightening ring 608 is pushed to push the fastening spring 607 and the limiting piece 609 to move towards the disconnecting link 302, and the fastening spring 607 and the limiting piece 609 are pressed, so that the end of the disconnecting link 302 cannot easily shake or loosen, the rotating end of the disconnecting link 302, namely the end connected with the rotating shaft 1, is attached to the attaching piece 7, and the disconnecting link 302 can be contacted with the contact 301 through the attaching piece 7 more fully without large friction to reduce the contact area.
As shown in fig. 3, the sticking sheet 7 includes an outer sticking ring 701 sleeved on the rotating shaft 1 and connected to the outer surface of the switch 302, an i-shaped connecting sleeve 702 is sleeved on the inner side wall of the outer sticking ring 701, one end of the connecting sleeve 702 far away from the outer sticking ring 701 is provided with a plurality of U-shaped sticking spring sheets 703 connected to the inner surface of the switch 302, and one side of the sticking spring sheets 703 far away from the outer sticking ring 701 is provided with a guide sheet 704 connected to the contact 301.
This outer ring 701 and adapter sleeve 702 can play the effect of protection location, still can prop up guide vane 704 through pasting shell fragment 703 on the adapter sleeve 702 simultaneously for guide vane 704 can be promoted by pasting shell fragment 703 all the time, and paste contact 301 always, and so set up guide vane 704 also can play the operation of fastening to switch 302, make switch 302's fastening effect better, the phenomenon of automatic re-setting can not appear after opening.
As shown in fig. 1 and 4, the retractor 5 includes an L-shaped supporting block 501 connected to the contact 301, and a square sliding hole 502 is formed on the surface of the supporting block 501; a pressing block 503 is connected in the sliding square hole 502; a lower tension spring 504 is arranged at the bottom of the pressing block 503, and one end of the lower tension spring 504, which is far away from the pressing block 503, is connected with the supporting block 501; one side of the top of the pressing block 503 is provided with a guide inclined plane;
an aligning block 505 is arranged on one side of the pressing block 503, which is far away from the knife switch 302, and the aligning block 505 is arranged in the sliding square hole 502; the inner wall of the square sliding hole 502 is provided with a clamping block which is used for matching with the correcting block 505 to lock the correcting block 505;
when the knife switch is switched on, the knife switch 302 gradually presses one end of the pressing block 503, which is far away from the sliding square hole 502, so that the pressing block 503 is separated from the clamping block, the knife switch 302 moves from the top of the pressing block 503 to the bottom of the pressing block 503 along the guide inclined plane, so that the pressing block 503 is separated from the clamping block, and the pulling force of the pull-down spring 504 further drives the pressing block 503 to press down the knife switch 302, so that the knife switch 302 is tightly attached to the contact 301.
When the knife switch 302 is closed, the knife edge of the knife switch 302 directly clamps the contact 301, meanwhile, the knife switch 302 presses the pressing block 503 to separate from the clamping block in the square sliding hole 502, meanwhile, the pressing block 503 directly clamps the knife switch 302 after being pressed and drives the knife switch 302 to move together, and meanwhile, the lower tension spring 504 resets to pull the pressing block 503 to move together, so that the contact between the knife edge of the knife switch 302 and the contact 301 is firmer.
As shown in fig. 4, the inner wall of the square sliding hole 502 is further provided with a position-correcting chute 8 for limiting a position-correcting block 505;
the straightening chute 8 comprises a strip-shaped movable groove 801, one end of the movable groove 801 close to the clamping block is provided with a square groove 803, the groove width of the square groove 803 is larger than that of the movable groove 801, a V-shaped transition groove 802 is arranged between the square groove 803 and the movable groove 801, and two ends of the transition groove 802 are respectively communicated with the square groove 803 and the movable groove 801;
an insert block 9 connected with the pressing block 503 is arranged right below the orthostatic block 505; the insert 9 comprises a connecting insert 901 connected with the pressing block 503, a main insert column 902 is installed on the connecting insert 901, one end of the main insert column 902 far away from the connecting insert 901 is clamped in the movable groove 801, and the main insert column 902 can slide along the movable groove 801.
The pressing block 503 is provided to facilitate the knife switch 302 to be locked, and here, taking fig. 4 as an example, when the knife switch 302 presses the pressing block 503, the lower part of the knife switch 302 slides along the inclined surface of the pressing block 503, the pressing block 503 is pressed, the position correcting block 505 on the block 503 to be pressed is separated from the limit of the position limiting block, the lower tension spring 504 is reset, the pressing block 503 is pulled to move downwards, the embedded block 9 firstly passes through the transition groove 802 from the square groove 803, and after the guiding by the inclined surface of the transition groove 802, the knife switch can directly enter the movable groove 801 until the lower tension spring 504 is not in motion, when the block 503 to be pressed is not in motion, if the knife switch 302 is continuously pressed, the pressing block 503 is pressed again, and the force is continuously applied until the pressing block 503 blocks the lower sidewall of the knife switch 302, as shown in fig. 4, and the pressing block 503 is pressed against the knife switch 302 under the action of the lower tension spring 504, so that the knife switch 302 does not rebound or move.
Both the pressing block 503 and the correcting block 505 should have elasticity.
The insert 9 includes a connecting insert 901 connected to the pressing block 503, a main insert 902 fitted into the movable groove 801 is attached to a side wall of the connecting insert 901, and the main insert 902 has a quadrangular cross section, and the main insert 902 is provided so that the main insert 902 does not shake in the movable groove 801.
When the knife switch 302 is pulled out, the pressing block 503 directly drives the connecting insert 901 and the main insert 902 to move together when moving, when the main insert 902 moves to the square groove 803, the positioning block 505 is specifically in a right-angled trapezoid structure as shown in fig. 4, at this time, the inclined surface of the positioning block 505 contacts the position-locking block, then the knife switch 302 is continuously lifted, so that the positioning block 505 is compressed until the position-locking block protrudes beyond the position-locking block, at this time, the positioning block locks the positioning block 505, so that the positioning block 505 cannot move easily, at this time, the lower tension spring 504 is stretched, then the knife switch 302 is continuously pulled, so that one end of the pressing block 503, which is far away from the positioning block 505, is greatly stressed, at this time, the pressing block 503 slightly inclines the main insert 902 and moves slightly towards one side of the pressing block 503 in the square groove 803, so that a gap exists between the pressing block 503 and the knife switch 302, then the knife switch 302 can easily slide out of the pressing block 503, and then the inclined pressing block 503 can be reset under the action of the lower tension spring 504, so as to facilitate the subsequent clamping operation.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. An isolation switch is characterized by comprising a rotating shaft (1), a mounting part (2) and two insulators (3) fixed on the surface of the mounting part (2), wherein one ends, far away from the mounting part (2), of the two insulators (3) are respectively provided with a contact (301), one of the contacts (301) is connected with a switch (302) through the rotating shaft (1), and the other contact (301) is provided with a retractor (5);
the retractor (5) comprises an L-shaped supporting block (501) connected with the contact (301), and a square sliding hole (502) is formed in the surface of the supporting block (501); a pressing block (503) is connected in the sliding square hole (502); a lower tension spring (504) is installed at the bottom of the pressing block (503), and one end, far away from the pressing block (503), of the lower tension spring (504) is connected with the supporting block (501); one side of the top of the pressing block (503) is provided with a guide inclined plane;
a position correction block (505) is arranged on one side, away from the disconnecting link (302), of the pressing block (503), and the position correction block (505) is arranged in the sliding square hole (502); a clamping block which is used for being matched with the correcting block (505) to lock the correcting block (505) is installed on the inner wall of the sliding square hole (502);
when the disconnecting link is switched on, the disconnecting link (302) gradually extrudes one end, far away from the sliding square hole (502), of the pressing block (503), so that the pressing block (503) is separated from the clamping block, the disconnecting link (302) moves to the bottom of the pressing block (503) from the top of the pressing block (503) along the guide inclined plane, so that the pressing block (503) is separated from the clamping block, and the tension of the lower tension spring (504) further drives the pressing block (503) to press the disconnecting link (302) downwards, so that the disconnecting link (302) is tightly attached to the contact (301).
2. The isolating switch according to claim 1, wherein the inner wall of the sliding square hole (502) is further provided with a position-correcting sliding groove (8) for limiting the position-correcting block (505);
the correcting position sliding groove (8) comprises a strip-shaped movable groove (801), a square groove (803) is formed in one end, close to the clamping block, of the movable groove (801), the groove width of the square groove (803) is larger than that of the movable groove (801), a V-shaped transition groove (802) is formed between the square groove (803) and the movable groove (801), and two ends of the transition groove (802) are respectively communicated with the square groove (803) and the movable groove (801);
an embedded block (9) connected with the pressing block (503) is arranged right below the orthostatic block (505); the insert (9) comprises a connecting insert (901) connected with the pressing block (503), a main insert pillar (902) is installed on the connecting insert (901), one end, far away from the connecting insert (901), of the main insert pillar (902) is clamped in the movable groove (801), and the main insert pillar (902) can slide along the movable groove (801).
3. An isolation switch according to claim 1, characterized in that the rotating shaft (1) is provided with a fastening and engaging mechanism (4); the fastening and switching mechanism (4) comprises two sealing sleeves (401) respectively connected with two ends of the rotating shaft (1) and deflection columns (402) symmetrically arranged on two sides of the disconnecting link (302); the outer side walls at two ends of the rotating shaft (1) are provided with thread sections with opposite thread turning directions, and the sealing sleeve (401) is in threaded connection with the thread sections;
the side wall of the knife switch (302) is connected with an opening and closing sealer (6) which can slide along the rotating shaft (1); the opening and closing sealer (6) is arranged between the two sealing sleeves (401), and one end of the deflection column (402) is arranged on the side wall of the disconnecting link (302);
in the process that the disconnecting link (302) deflects to be separated from the contact (301), the disconnecting link (302) drives the deflection column (402) to rotate around the rotating shaft (1), so that the position sealing sleeve (401) is driven to rotate around the rotating shaft (1), and the position sealing sleeve (401) slides along the rotating shaft (1) through threads to push the opening and closing sealer (6) to fasten the disconnecting link (302).
4. An isolation switch as claimed in claim 3, wherein said opening and closing closure (6) comprises two moving gear sleeves (602) respectively screwed on two said thread sections, and a driving sleeve (603) connected with said deflection column (402) is sleeved on the outer side wall of said moving gear sleeve (602);
the outer side wall of the movable gear sleeve (602) is provided with a plurality of driving gear blocks (604), the inner wall of the driving sleeve (603) is provided with a clamping groove (605), the inner wall of the clamping groove (605) is provided with a driving strip (606) meshed with the driving gear blocks (604), and the spiral directions of the inner wall of the movable gear sleeve (602) are opposite.
5. The isolating switch according to claim 4, characterized in that one end of the moving gear sleeve (602) far away from the position sealing sleeve (401) is connected with a fastening spring (607) sleeved on the rotating shaft (1);
the fastening spring (607) is close to one end of the disconnecting link (302) and is installed with a tight piece (7) connected with the surface of the disconnecting link (302), the other end of the fastening spring (607) is installed with a correction ring (608) which is sleeved on the rotating shaft (1) and is connected with the movable gear sleeve (602), and a plurality of limiting pieces (601) are connected between the tight piece (7) and the correction ring (608).
6. The isolation switch according to claim 5, wherein the sticking piece (7) comprises an outer sticking ring (701) which is sleeved on the rotating shaft (1) and connected with the outer surface of the switch (302), an I-shaped connecting sleeve (702) is sleeved on the inner side wall of the outer sticking ring (701), one end, far away from the outer sticking ring (701), of the connecting sleeve (702) is provided with a plurality of sticking spring pieces (703) which are U-shaped and connected with the inner surface of the switch (302), and one side, far away from the outer sticking ring (701), of each sticking spring piece (703) is provided with a guide piece (704) connected with the contact (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010587449.8A CN111681901B (en) | 2020-06-24 | 2020-06-24 | Isolation switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010587449.8A CN111681901B (en) | 2020-06-24 | 2020-06-24 | Isolation switch |
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| CN111681901A true CN111681901A (en) | 2020-09-18 |
| CN111681901B CN111681901B (en) | 2022-07-29 |
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| CN115240965A (en) * | 2022-08-04 | 2022-10-25 | 国网安徽省电力有限公司滁州市城郊供电公司 | Fuse is used in transformer protection |
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Also Published As
| Publication number | Publication date |
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| CN111681901B (en) | 2022-07-29 |
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