CN112885583A - Novel overvoltage limiter for autotransformer - Google Patents
Novel overvoltage limiter for autotransformer Download PDFInfo
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- CN112885583A CN112885583A CN202110029190.XA CN202110029190A CN112885583A CN 112885583 A CN112885583 A CN 112885583A CN 202110029190 A CN202110029190 A CN 202110029190A CN 112885583 A CN112885583 A CN 112885583A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
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Abstract
The invention relates to the technical field of limiters, and particularly discloses a novel overvoltage limiter for an autotransformer, which comprises a limiter main body, a first fixing plate and a plurality of cable sockets, wherein metal plates are integrally formed on the left side and the right side of the top and the bottom of the first fixing plate, through the structural design of the first connecting frame, the second fixing plate, the convex plate, the first concave groove, the first convex block, the second connecting frame and the telescopic rod, the limiter main body has the effect of adjustable state, realizes the effect of convenient inspection and maintenance, avoids the situation that the limiter main body needs to be disassembled when the limiter main body is inspected and maintained at regular intervals, solves the problem that the traditional overvoltage limiter needs to be disassembled in the process of maintenance and repair, the maintenance process of workers is inconvenient, and the problem that the main body of the limiter is damaged to influence the subsequent normal use is easily caused by the dismounting operation.
Description
Technical Field
The invention relates to the technical field of limiters, in particular to a novel overvoltage limiter for an autotransformer.
Background
A limiter belongs to voltage adjusting equipment, limits some parameters of a machine to ensure that the machine normally operates within the limited parameter value and is not allowed to be used beyond the limit, aims to maintain the safe and stable operation of a generator and avoid abnormal accident shutdown caused by the action of a protective relay, needs to be connected between a cable and a transformer when the overvoltage limiter is installed, needs a worker to regularly maintain and check the cable connection part after the overvoltage limiter is used for a long time, avoids hidden dangers in subsequent use caused by accidental loosening or falling of the connection part, however, the traditional overvoltage limiter is completely fixed in a special box body by using bolts, and is convenient for subsequent maintenance and check operation after the worker is always required to disassemble the limiter in the process of maintaining and checking, the overvoltage limiter is not beneficial to maintenance operation of workers, the phenomenon of easy damage can also occur when the limiter is disassembled and assembled for many times, and the limiter is not beneficial to long-time normal use of the limiter, so that the novel overvoltage limiter for the autotransformer is necessary to be designed, and the problem mentioned above is solved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the novel overvoltage limiter for the autotransformer, which has the advantages of angle adjustment of the limiter in the maintenance and inspection process and the like, and solves the problem that the traditional overvoltage limiter is inconvenient because the limiter needs to be detached in the regular maintenance and maintenance process.
The invention relates to an overvoltage limiter for a novel autotransformer, which comprises a limiter main body, a first fixing plate and a plurality of cable sockets, wherein metal plates are integrally formed on the left side and the right side of the top and the bottom of the first fixing plate, fixing bolts for fixing the first fixing plate are connected inside the metal plates in a threaded manner, a first connecting frame is fixedly connected to the middle of the back surface of the limiter main body, a second fixing plate is fixedly connected to the middle of the front surface of the first fixing plate, convex plates are fixedly connected to the left side and the right side of the front surface of the second fixing plate, first concave grooves are formed in the positions, close to the front surface, of the opposite surfaces of the two convex plates, a first convex block is fixedly connected to the middle of the front surface of the second fixing plate, a second connecting frame is fixedly connected to the middle of the front surface of the inner wall of the first connecting frame, the second connecting frame is movably sleeved on the outer surface of the first convex block, the telescopic link is including dead lever and movable rod, the inside of telescopic link dead lever is equipped with the powerful spring of second, the powerful spring of second is in compression state, the positive top of second fixed plate and the equal fixedly connected with second connecting plate in bottom, two the opposite face of second connecting plate and the position department that is close to the back all run through and have seted up spacing slot, the top of first linking frame and the position department that just is close to the back all run through and have seted up the opening, two it has the third connecting rod, two to peg graft in activity respectively between two openings that spacing slot and first linking frame were seted up the surface of third connecting rod and the position department that is close to the opposite face all have the fifth connecting plate along annular integrated into one piece, the first powerful spring of fixedly connected with between the inner wall of fifth connecting plate and first linking frame.
According to the overvoltage limiter for the novel autotransformer, the output end of the telescopic rod is of the semicircular structure and is matched with the shape and size of the first concave groove, and the rubber pad is fixedly connected inside the first concave groove.
The overvoltage limiter for the novel autotransformer is characterized in that the left side and the right side of a first connecting frame are respectively provided with a slide way, a first connecting rod is movably inserted in the slide ways, the left side and the right side of two convex plates are respectively provided with a channel, the opposite surfaces of the two first connecting rods are respectively fixedly connected with a second connecting rod and movably inserted in the channels, an opening is formed in the left side and the right side of the middle of a rubber pad in a penetrating mode, the channels are communicated with the openings, and the outer surfaces of the two first connecting rods and the sides close to the sides far away from each other are respectively fixedly connected with the first connecting plates.
The invention discloses an overvoltage limiter for a novel autotransformer, wherein the sides, far away from each other, of two third connecting rods respectively protrude to the top and bottom positions of a convex plate, the sides, far away from each other, of the two third connecting rods are fixedly connected with third connecting plates, each third connecting plate comprises a longitudinal plate and a vertical plate, the front surfaces of the longitudinal plates of the two third connecting plates respectively protrude to the top and bottom positions of a limiter main body, and a space is reserved between the front surfaces of the longitudinal plates of the two third connecting plates.
The invention discloses an overvoltage limiter for a novel autotransformer, wherein the outer surface of a third connecting plate is a rough surface, and a second concave groove is formed in the position, close to the front surface, of the opposite surface of the longitudinal plate of the two third connecting plates along the horizontal longitudinal direction.
According to the overvoltage limiter for the novel autotransformer, the second connecting frame is designed to be of a rectangular structure, the second connecting frame is located between the two second connecting plates, and spaces are reserved between the top and the bottom of the second connecting frame and opposite surfaces of the two second connecting plates respectively.
The overvoltage limiter for the novel autotransformer is characterized in that the first connecting rods are positioned inside the slide way, a distance is reserved between the back surface of the first connecting rods and the first connecting frame, the longitudinal diameter of the slide way is matched with the size of the first connecting rods, the outer surfaces of the first connecting frame and the first connecting rods are smooth surfaces, second convex blocks are integrally formed on the outer surfaces of the two first connecting rods and close to the positions of opposite surfaces along a ring shape, and one sides, far away from each other, of the two second convex blocks are respectively in contact with the left side and the right side of the inner wall of the first connecting frame.
According to the overvoltage limiter for the novel autotransformer, the limiting plates are fixedly connected to the left side and the right side of the inner wall of the first connecting frame, the fourth connecting plates are fixedly connected to the left side and the right side of the convex plate, the two fourth connecting plates are movably clamped between the limiting plates respectively, and the outer surfaces of the fourth connecting plates and the limiting plates are smooth surfaces.
The invention discloses an overvoltage limiter for a novel autotransformer, wherein threaded rods are fixedly connected to the middle parts of the top and the bottom of a limiter main body and the positions close to the back surface, nuts are connected to the outer surface of each threaded rod in a threaded manner, protruding rods are fixedly connected to the front surface and the back surface of one side, far away from the nuts, of each nut, and one sides, far away from the nuts, of the protruding rods are respectively in contact with two third connecting plates.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through the structural design of the first connecting frame, the second fixing plate, the convex plate, the first concave groove, the first convex block, the second connecting frame and the telescopic rod, the limiter main body has the effect of adjustable state, the effect of convenient inspection and maintenance is realized, the situation that the limiter main body needs to be disassembled when the limiter main body is inspected and maintained regularly is avoided, the problems that the maintenance process is inconvenient for workers due to the disassembly operation in the maintenance and repair process of the traditional overvoltage limiter and the subsequent normal use is affected due to the damage of the limiter main body caused by the disassembly and assembly operation are solved, meanwhile, through the structural design of the rubber pad and the second strong spring, the effect of pressure application limitation on the limiter main body can be realized, and the maintenance and repair treatment of the limiter main body by the workers are facilitated, avoided easily droing between telescopic link and the flange to and when carrying out angle adjustment observation to this limiter main part and overhauing, be in not hard up state all the time between telescopic link and the flange and lead to the condition appearance that causes inconvenience to staff's maintenance processing procedure.
2. According to the invention, through the structural design of the through holes formed in the second connecting plate, the limiting slot, the third connecting plate, the third connecting rod and the first connecting frame, the limiting and positioning effects on the limiter main body and the first connecting frame can be realized, the phenomenon that the limiter main body is always in a loose state and is easy to move back and forth in the using process is avoided, through the structural design of the second concave slot, the state adjustment of the limiter main body by a worker is facilitated, and the situation that the third connecting plate is inconvenient to grab, press and pull when the state of the limiter main body is adjusted is avoided.
3. According to the invention, through the structural design of the first strong spring and the fifth connecting plate, the splicing state between the third connecting rod and the limiting slot is more stable, the situation that the installation of the limiter main body is unstable due to the fact that the third connecting rod and the limiting slot are always in a loose state is avoided, meanwhile, the working personnel can adjust the located state of the limiter main body more conveniently, a certain pressure is provided between the third connecting rod and the second connecting plate, and the situation that the telescopic rod accidentally crosses the first concave groove formed in the convex plate to cause falling-off due to the fact that the limiter main body is in a relatively loose state when the limiter main body is pulled and adjusted towards the outer side is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic top view of the cross-sectional structure of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is a schematic side view of the cross-sectional structure of the present invention;
FIG. 6 is a schematic view of the front cross-sectional structure of the convex plate of the present invention;
FIG. 7 is a schematic view of a connection structure between the telescopic rod and the second connecting rod according to the present invention;
FIG. 8 is a schematic view of the first bump separated from the second connecting frame according to the present invention;
fig. 9 is an enlarged structural diagram at B in fig. 8 according to the present invention.
In the figure: 1. a limiter body; 2. a cable socket; 3. a first fixing plate; 4. a metal plate; 5. fixing the bolt; 6. a first connection frame; 7. a slideway; 8. a first connecting rod; 9. a first connecting plate; 10. a second fixing plate; 11. a convex plate; 12. a first recess groove; 13. a rubber pad; 14. a channel; 15. a second connecting rod; 16. a second connecting plate; 17. limiting slots; 18. a third connecting plate; 19. a first strong spring; 20. a second recess groove; 21. a first bump; 22. a second connection frame; 23. a telescopic rod; 24. a second strong spring; 25. a fourth connecting plate; 26. a limiting plate; 27. an opening; 28. a fifth connecting plate; 29. a third connecting rod; 30. a threaded rod; 31. a nut; 32. a nose bar; 33. and a second bump.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the various embodiments of the invention. It should be understood, however, that these physical details should not be construed as limiting the invention. That is, in some embodiments of the invention, such physical details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Example 1: please refer to fig. 1-6, including limiter body 1, first fixed plate 3 and a plurality of cable sockets 2, the top of first fixed plate 3 and the left and right sides of the bottom are all integrated into one piece to have metal sheet 4, the inside of metal sheet 4 is all screwed with fixing bolt 5 of fixed first fixed plate 3, the back middle part fixedly connected with first connection frame 6 of limiter body 1, the positive middle part fixedly connected with second fixed plate 10 of first fixed plate 3, the positive left and right sides of second fixed plate 10 is all fixedly connected with protruding board 11, the opposite face of two protruding boards 11 and the position department that is close to the front all are equipped with first depressed groove 12, the positive middle part fixedly connected with first protruding block 21 of second fixed plate 10.
The middle part of the front surface of the inner wall of the first connecting frame 6 is fixedly connected with a second connecting frame 22, the second connecting frame 22 is movably sleeved on the outer surface of the first bump 21, the positions of the left side and the right side close to the back surface are fixedly connected with a telescopic rod 23, the telescopic rod 23 comprises a fixed rod and a movable rod, a second strong spring 24 is arranged inside the fixed rod of the telescopic rod 23, the second strong spring 24 is in a compressed state, the top and the bottom of the front surface of the second fixed plate 10 are fixedly connected with a second connecting plate 16, the positions of the opposite surfaces of the two second connecting plates 16 close to the back surface are respectively provided with a limiting slot 17 in a penetrating way, the positions of the top and the bottom of the first connecting frame 6 close to the back surface are respectively provided with a through hole in a penetrating way, a third connecting rod 29 is movably inserted between the two through holes of the two limiting slots 17 and the first connecting frame 6, the positions of the outer surfaces of the, a first strong spring 19 is fixedly connected between the fifth connecting plate 28 and the inner wall of the first connecting frame 6, the left side and the right side of the first connecting frame 6 are both provided with a slideway 7, a first connecting rod 8 is movably inserted in the slideway 7, and the left side and the right side of the two convex plates 11 are both provided with a channel 14.
The opposite surfaces of the two first connecting rods 8 are fixedly connected with second connecting rods 15 and movably inserted in the channel 14, an opening 27 is formed between the left side and the right side of the middle part of the rubber pad 13 in a penetrating manner, the channel 14 is communicated with the opening 27, the outer surfaces of the two first connecting rods 8 close to the mutually far sides are fixedly connected with first connecting plates 9, the second connecting frames 22 are in rectangular structural design, the second connecting frames 22 are positioned between the two second connecting plates 16, spaces are respectively reserved between the tops and the bottoms of the second connecting frames 22 and the opposite surfaces of the two second connecting plates 16, the first connecting rods 8 are positioned in the slide 7, the back surfaces of the first connecting rods 8 are spaced from the first connecting frames 6, the longitudinal diameter of the slide 7 is matched with the first connecting rods 8, and the outer surfaces of the first connecting frames 6 and the first connecting rods 8 are smooth surfaces, the surface of two head rods 8 and the position department that is close to the opposite face all have second lug 33 along annular integrated into one piece, the one side that two second lugs 33 kept away from each other contacts with the left and right sides of 6 inner walls of first connecting frame respectively, the equal fixedly connected with limiting plate 26 in the left and right sides of 6 inner walls of first connecting frame, the equal fixedly connected with fourth connecting plate 25 in the left and right sides of flange 11, two fourth connecting plates 25 are the position department of activity joint between a plurality of limiting plates 26 respectively, fourth connecting plate 25 is the smooth surface with limiting plate 26's surface, the middle part of 1 top of limiter main part and bottom just is close to the equal fixedly connected with threaded rod 30 in the position department at the back, threaded rod 30's surface threaded connection has nut 31.
The front and the back of one side of two nuts 31 far away from each other are fixedly connected with protruding rods 32, and one side of the protruding rods 32 far away from the nuts 31 is respectively contacted with the two third connecting plates 18.
According to the above structural design, the device can conveniently restore the position of the limiter body 1 after the overhaul is finished by workers through the structural design of the slide rail 7, the first connecting rod 8, the first connecting plate 9, the channel 14 and the opening 27, thereby avoiding the situation that the limiter body 1 is inconvenient to press to reset and reuse because the telescopic rod 23 and the rubber pad 13 are always in a close fit state, meanwhile, the second connecting frame 22 can be effectively rotated and operated when being positioned between the second connecting plates 16 through the structural design of reserving a space distance between the second connecting frame 22 and the second connecting plate 16, avoiding the situation that the second connecting plate 16 obstructs and influences the rotating process of the second connecting frame 22, effectively playing a limiting effect on the first connecting rod 8 through the structural design of the second bump 33, and avoiding the situation that the first connecting rod 8 is separated and falls off from the first connecting frame 6 through the slide rail 7, through the structural design of fourth connecting plate 25 and limiting plate 26, be convenient for the staff to install the operation to first connecting frame 6 earlier stage, avoided the second connecting frame 22 difficult and the first lug 21 between the condition appearance of butt joint installation, through threaded rod 30, the structural design of nut 31 and nose bar 32, can effectually adjust the restriction to the position of locating of third connecting rod 29, thereby realize observing the inspection operation to the follow-up angle upset of limiter main part 1, avoid being in closely laminating state between third connecting rod 29 and the second connecting plate 16 all the time and influence the condition appearance of limiter main part 1 rotation operation.
Example 2: different from the embodiment 1, please refer to fig. 7, the sides of the two third connecting rods 29 far away from each other protrude to the top and bottom positions of the convex plate 11, the sides of the two third connecting rods 29 far away from each other are fixedly connected with the third connecting plates 18, the third connecting plates 18 include longitudinal plates and vertical plates, the front surfaces of the longitudinal plates of the two third connecting plates 18 protrude to the top and bottom positions of the limiter body 1 respectively, and a space is left between the front surfaces, the outer surfaces of the third connecting plates 18 are rough surfaces, and the positions of the opposite surfaces of the longitudinal plates of the two third connecting plates 18 and the positions close to the front surfaces are provided with second concave grooves 20 along the horizontal longitudinal direction.
According to the structural design, the device can be convenient for workers to adjust the state between the first connecting frame 6 and the second connecting plate 16 through the structural design of the third connecting plate 18, the situation that the third connecting rod 29 is inconvenient to grab and press for adjustment is avoided, the workers can grab and press the third connecting plate 18 through the structural design of the second concave groove 20, and the situation that the third connecting plate 18 is easy to slide in the grabbing and pressing process is avoided.
Example 3: different from the embodiments 1 and 2, please refer to fig. 8 and 9, the output end of the telescopic rod 23 is a semicircular structure and is matched with the shape and size of the first concave groove 12, and the rubber pad 13 is fixedly connected inside the first concave groove 12.
According to the structural design, the device is more favorable for the staff to carry out the angle upset to limiter main part 1 and subsequent observation inspection operation promptly through the structural design of rubber pad 13 for the in-process of maintaining limiter main part 1 is in not hard up state all the time and influences the condition appearance of observing the inspection.
When the invention is used: when the limiter body 1 is used for a long time and the wiring position needs to be overhauled and maintained, a worker can firstly respectively hold the longitudinal plates of the two third connecting plates 18 to the sides far away from each other to apply pressure, so that the third connecting plates 18 drive the third connecting rods 29 to move through the limiting slots 17 and the through holes formed in the first connecting frame 6, the outer surfaces of the third connecting rods 29 are kept away from and kept between the positions close to the bottom and the limiting slots 17, the first strong springs 19 are compressed and contracted through the fifth connecting plates 28, then the two third connecting plates 18 are simultaneously pressed and pulled to the front side, then the longitudinal plates of the third connecting plates 18 are continuously held to apply pressure to the front side, the first connecting frame 6 drives the second connecting frame 22, the telescopic rods 23 and the fourth connecting plates 25 to simultaneously slide to the front side until the movable rods of the telescopic rods 23 move to the inner positions of the first concave grooves 12, and keep away from each other between second connection frame 22 and the first lug 21, at this moment, second powerful spring 24 kick-backs for closely laminate between telescopic link 23 and the rubber pad 13, the staff can exert pressure the knob through threaded rod 30 to nut 31 afterwards, make threaded rod 30 remove and play the top-moving effect to third connecting plate 18 through nose bar 32, make keep away from and reserve the space between its third connecting rod 29 and the second connecting plate 16, and keep away from between fourth connecting plate 25 and the limiting plate 26, and finally, the staff can exert pressure to limiter main part 1 through second connection frame 22, nose bar 11 and first depressed groove 12 and carry out the angle upset and observe the inspection promptly.
If the second connecting frame 22 and the two convex plates 11 are prevented from easily falling off, the worker can separate the third connecting rod 29 from the limiting slot 17 and apply pressure to the front surface to pull a small distance to loosen the third connecting plate 18, the first strong spring 19 rebounds after losing pressure, so that the bottom surfaces of the two third connecting rods 29 are respectively tightly attached to the two second connecting plates 16, and then the third connecting plates 18 are continuously pulled, due to the tight fit between the third connecting rod 29 and the second connecting plate 16, a certain pulling force needs to be applied during the pulling of the third connecting plate 18, so that the situation that the limiter body 1 is too loose due to the position between the second connecting frame 22 and the convex plate 11 during the outward pulling process is avoided, and the telescopic rod 23 is easily separated from the first concave groove 12 in a staggered way, so that the normal butt joint is influenced.
After the overhaul and maintenance of the limiter body 1 are completed and the position of the limiter body 1 needs to be restored, a worker can firstly adjust the front of the limiter body 1 to be vertical, then respectively apply pressure to the opposite surfaces to push the two first connecting plates 9, the first connecting plates 9 drive the first connecting rods 8 to move through the slideways 7 and the channels 14, so that the two second connecting rods 15 are respectively contacted with the output ends of the telescopic rods 23 through the openings 27, then continuously apply pressure, the second strong springs 24 are compressed and contracted until the output ends of the telescopic rods 23 are far away from the rubber pads 13, then the pressure application state is kept, and then the limiter body 1 is pressed backwards through the front of the limiter body 1 to push the back of the limiter body to be contacted with the front of the first fixing plate 3, at the moment, the third connecting rod 29 is positioned right above the limiting slot 17, finally, the worker turns the nut 31 again, so that the protruding rod 32 is far away from the longitudinal plate of the third connecting plate 18, the first strong spring 19 rebounds along with the movement of the nut 31 until the third connecting rod 29 is inserted into the limiting slot 17 again, and the reset processing operation of the limiter main body 1 can be completed by achieving the limiting effect between the first connecting frame 6 and the second connecting plate 16 again.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a novel overvoltage limiter for autotransformer, includes limiter main part, first fixed plate and a plurality of cable socket, its characterized in that: the left side and the right side of the top and the bottom of the first fixed plate are integrally formed with a metal plate, the inner part of the metal plate is in threaded connection with a fixing bolt for fixing the first fixed plate, the middle part of the back surface of the limiter main body is fixedly connected with a first connecting frame, the middle part of the front surface of the first fixed plate is fixedly connected with a second fixed plate, the left side and the right side of the front surface of the second fixed plate are fixedly connected with convex plates, the opposite surfaces of the two convex plates and the positions close to the front surface are respectively provided with a first concave groove, the middle part of the front surface of the second fixed plate is fixedly connected with a first convex block, the middle part of the front surface of the inner wall of the first connecting frame is fixedly connected with a second connecting frame, the second connecting frame is movably sleeved on the outer surface of the first convex block, and the positions close to the back, the inside of telescopic link dead lever is equipped with the powerful spring of second, the powerful spring of second is in compression state, the positive top of second fixed plate and the equal fixedly connected with second connecting plate in bottom, two the opposite face of second connecting plate and the position department that is close to the back all run through and have seted up spacing slot, the top of first connecting frame and the position department that the bottom just is close to the back all run through and have seted up the opening, two spacing slot and first connecting frame are seted up between two openings respectively the activity grafting have a third connecting rod, two the surface of third connecting rod and the position department that is close to the opposite face all have the fifth connecting plate along annular integrated into one piece, the first powerful spring of fixedly connected with between the inner wall of fifth connecting plate and first connecting frame.
2. The overvoltage limiter for a novel autotransformer as claimed in claim 1, wherein: the output end of the telescopic rod is of a semicircular structure and is matched with the shape and size of the first concave groove, and a rubber pad is fixedly connected inside the first concave groove.
3. The overvoltage limiter for a novel autotransformer as claimed in claim 2, wherein: the utility model discloses a rubber pad, including rubber pad, first flange, first connecting frame, second flange, first connecting rod, second flange, rubber pad, the both sides all are equipped with the slide about the first connecting frame, the inside activity of slide is pegged graft and is had the head rod, two the passageway has all been seted up to the left and right sides of flange, two the equal fixedly connected with second connecting rod of opposite face of head rod and activity are pegged graft in the inside of passageway, run through between the left and right sides at rubber pad middle part and seted up the opening, be linked together between passageway and the opening, two.
4. The overvoltage limiter for a novel autotransformer as claimed in claim 1, wherein: two one side of keeping away from each other of third connecting rod is outstanding respectively to the top and the bottom position department of flange, two the equal fixedly connected with third connecting plate in one side that the third connecting rod was kept away from each other, the third connecting plate is including vertical board and vertical board, two the front of the vertical board of third connecting plate is outstanding respectively to the top and the bottom position department of limiter main part and between leave the space.
5. The overvoltage limiter for a novel autotransformer as claimed in claim 4, wherein: the outer surface of the third connecting plate is a rough surface, and second concave grooves are formed in the positions, close to the front surface, of the opposite surfaces of the two longitudinal plates of the third connecting plate along the horizontal longitudinal direction.
6. The overvoltage limiter for a novel autotransformer as claimed in claim 1, wherein: the second connecting frame is designed to be of a rectangular structure, the second connecting frame is located at a position between the two second connecting plates, and spaces are reserved between the top and the bottom of the second connecting frame and opposite faces of the two second connecting plates respectively.
7. The overvoltage limiter for a novel autotransformer as claimed in claim 3, wherein: the utility model discloses a slide, including the slide, the first connecting rod is located the inside of slide and leaves the distance between the back and the first connecting frame, the longitudinal diameter size and the first connecting rod looks adaptation seted up of slide, the surface of first connecting frame and first connecting rod is the smooth surface, two the position department of the surface of first connecting rod and being close to the opposite face all has the second lug, two along annular integrated into one piece the one side that the second lug was kept away from each other contacts with the left and right sides of first connecting frame inner wall respectively.
8. The overvoltage limiter for a novel autotransformer as claimed in claim 1, wherein: the equal fixedly connected with limiting plate in the left and right sides of first carriage inner wall, the equal fixedly connected with fourth connecting plate in the left and right sides of flange, two the fourth connecting plate is movable joint respectively in the position department between a plurality of limiting plates, the surface of fourth connecting plate and limiting plate is the smooth surface.
9. The overvoltage limiter for a novel autotransformer as claimed in claim 1, wherein: the equal fixedly connected with threaded rod in position department that just is close to the back in the middle part of limiter main part top and bottom, the surface threaded connection of threaded rod has the nut, two the nut keeps away from the front and the equal fixedly connected with nose bar in the back of one side each other, and is a plurality of one side that the nut was kept away from to the nose bar contacts between with two third connecting plates respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110029190.XA CN112885583B (en) | 2021-01-11 | 2021-01-11 | Overvoltage limiter for autotransformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN112885583B CN112885583B (en) | 2022-02-25 |
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| CN208315321U (en) * | 2018-05-17 | 2019-01-01 | 重庆时翔电子有限公司 | A kind of outdoor rain-proof type box type transformer |
| CN210310385U (en) * | 2019-02-26 | 2020-04-14 | 柳州铁道职业技术学院 | Fixing device of railway transponder |
| CN210780032U (en) * | 2019-12-03 | 2020-06-16 | 淮安信息职业技术学院 | Novel wireless arrester for communication |
| CN111739712A (en) * | 2020-07-16 | 2020-10-02 | 南通威科电气有限公司 | Box-type combined transformer |
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2021
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| CN103389395A (en) * | 2013-07-31 | 2013-11-13 | 国家电网公司 | Arrestor test rack |
| CN108134361A (en) * | 2018-02-08 | 2018-06-08 | 国网福建永春县供电有限公司 | A kind of arrester erecting device |
| CN208315321U (en) * | 2018-05-17 | 2019-01-01 | 重庆时翔电子有限公司 | A kind of outdoor rain-proof type box type transformer |
| CN108816868A (en) * | 2018-07-31 | 2018-11-16 | 芜湖市凯鑫避雷器有限责任公司 | A kind of cleaning structure of difference arrester |
| CN210310385U (en) * | 2019-02-26 | 2020-04-14 | 柳州铁道职业技术学院 | Fixing device of railway transponder |
| CN210780032U (en) * | 2019-12-03 | 2020-06-16 | 淮安信息职业技术学院 | Novel wireless arrester for communication |
| CN111739712A (en) * | 2020-07-16 | 2020-10-02 | 南通威科电气有限公司 | Box-type combined transformer |
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| CN112885583B (en) | 2022-02-25 |
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