CN104007357B - Secondary loop of mutual inductor short-circuit device - Google Patents
Secondary loop of mutual inductor short-circuit device Download PDFInfo
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- CN104007357B CN104007357B CN201410215855.6A CN201410215855A CN104007357B CN 104007357 B CN104007357 B CN 104007357B CN 201410215855 A CN201410215855 A CN 201410215855A CN 104007357 B CN104007357 B CN 104007357B
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- shank
- expansion rod
- fixed body
- hole
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Abstract
The invention discloses a kind of secondary loop of mutual inductor short-circuit device, including fixed body, shank, expansion rod, slip semicircle set, conducting bar, knob；The outer surface of shank offers the hole of symmetry, is provided with Expandable strip in hole, and the inner surface of Expandable strip is provided with protuberance；Expansion rod is slideably positioned in shank；The top of shank is fixed in fixed body；The outer surface sliding contact of slip semicircle set and shank；Rotating shaft is fixed in fixed body, and rotating shaft is positioned at above shank, and the centre position of press strip is fixed in rotating shaft, the two ends of press strip respectively with the top of slip semicircle set and the tip contact of expansion rod；Shank is two；Connecting axle and be vertically installed in fixed body, connect axle between two shanks, the centre position of conducting bar connects with being connected axle, and knob is arranged at the top of fixed body and connects with being connected axle。The present invention can consolidate installation, and is capable of short circuit and the rapid translating of non-short circuit state。
Description
Technical field
The present invention relates to a kind of electric power overhaul field, particularly relate to a kind of secondary loop of mutual inductor short-circuit device。
Background technology
In relay protection works, it is often necessary to by secondary loop of mutual inductor short circuit。
Currently, mainly utilize short circuit joint that secondary loop of mutual inductor is carried out short circuit。Existing short circuit joint includes a fittings body and two shanks being arranged on fittings body, two shank mutual conduction。In use, shank is inserted in the jack of secondary loop of mutual inductor, short circuit can be realized。
But, fixing unstable problem after such insertion deposited by existing short circuit joint, and short circuit joint easily loosens, and causes open circuit of secondary loop of current transformer, produces high voltage burning apparatus and even jeopardizes personal safety。And, existing short circuit joint could cancel short circuit after can only taking off from the jack of secondary loop of mutual inductor, which results in the inconvenience of work。
Summary of the invention
Namely the purpose of the present invention is in that to overcome the deficiencies in the prior art, it is provided that a kind of secondary loop of mutual inductor short-circuit device that can consolidate installation, and this device can also realize short circuit and the rapid translating of non-short circuit state。
The purpose of the present invention is achieved through the following technical solutions:
Secondary loop of mutual inductor short-circuit device, including fixed body, shank, expansion rod, slip semicircle set, conducting bar, rotating shaft and press strip, knob and connection axle；Shank is hollow cylinder, and the outer surface of shank offers the hole of symmetry, is provided with Expandable strip in hole, and the upper end of Expandable strip is connected with the hole wall in hole, and the other parts of Expandable strip do not contact with the hole wall in hole, and the inner surface of Expandable strip is provided with protuberance；Expansion rod is slideably positioned in shank, the top of expansion rod is positioned at outside shank, the bottom of expansion rod is taper, and the bottom of expansion rod is positioned at the top of protuberance, the minimum diameter more than expansion rod bottom of the distance between two protuberances and the maximum gauge less than expansion rod bottom；The top of shank is fixed in fixed body；The outer surface sliding contact of slip semicircle set and shank, the top of slip semicircle set is positioned at shank top end, and the bottom of slip semicircle set is positioned at above hole；Rotating shaft is fixed in fixed body, and rotating shaft is positioned at above shank, and the centre position of press strip is fixed in rotating shaft, the two ends of press strip respectively with the top of slip semicircle set and the tip contact of expansion rod；Shank is two；Connecting axle and be vertically installed in fixed body, connect axle between two shanks, the centre position of conducting bar connects with being connected axle, and the length of conducting bar is more than the distance between two shanks, and knob is arranged at the top of fixed body and connects with being connected axle。
Shank operationally, is inserted in the socket of secondary loop of mutual inductor by the present invention, and two shanks are by turning on bar conducting, it is achieved short circuit。When shank inserts in the socket of secondary loop of mutual inductor, the plane contact that slip semicircle set is other with socket, slip semicircle set stress also moves up relative to shank, the top of slip semicircle set and the end thereof contacts of press strip, the one end making press strip moves upward, thus the other end of press strip moves down and with the tip contact of expansion rod。Expansion rod is pressed downward against by press strip, makes the bottom of expansion rod insert between two protuberances and Expandable strip is outwards pushed up so that Expandable strip is close to the inner surface of socket, so that the installation of the present invention is more firm。
Want rapid translating extremely non-short circuit state, it is only necessary to turning knob, drive conducting bar to rotate by connecting axle to turn on bar and do not contact with shank。
Further, the outer surface of described Expandable strip offers a plurality of anti-slip tank。
Anti-slip tank is set, it is possible to reduce the problem that short-circuit plug loosens in socket further。
Further, the bottom of described shank is provided with shrouding；Also include the spring being fixed on shrouding upper surface。
After short-circuit plug inserts socket, the bottom of expansion rod is by spring-compressed, and after short-circuit plug takes out, expansion rod is upwards pushed up by spring so that the bottom of expansion rod departs from protuberance, and expansion rod and Expandable strip automatically reset。Increase shrouding and spring, enable short-circuit plug to automatically reset, improve the convenience when present invention uses。
Further, the outer surface of described slip semicircle set is provided with spacing preiection；It is provided with positive stop lug boss in described fixed body；Spacing preiection is positioned at above positive stop lug boss。
Spacing preiection and positive stop lug boss are set, it is prevented that slip semicircle set falls out outside fixed body。
Further, the two ends of described conducting bar offer adapt with described shank outer surface arc groove。
Arc groove is set, it is possible to make conducting bar bigger with the contact area of shank, thus realizing more stable effective conducting。
In sum, advantages of the present invention and having the beneficial effects that:
1. the present invention can be stably mounted in the socket of secondary loop of mutual inductor, it is to avoid short-circuit plug loosens, and causes open circuit of secondary loop of current transformer, produces the problem that high voltage burning apparatus even jeopardizes personal safety；
2. the present invention can realize short circuit and the rapid translating of non-short circuit state, it is not necessary to takes off the present invention, improves work efficiency；
3. anti-slip tank is set, it is possible to reduce the problem that short-circuit plug loosens in socket further；
4. increase shrouding and spring, enable short-circuit plug to automatically reset, improve the convenience when present invention uses；
5. spacing preiection and positive stop lug boss are set, it is prevented that slip semicircle set falls out outside fixed body；
6. arc groove is set, it is possible to make conducting bar bigger with the contact area of shank, thus realizing more stable effective conducting。
Accompanying drawing explanation
In order to be illustrated more clearly that embodiments of the invention, the accompanying drawing used required for describing in the embodiment of the present invention will be briefly described below。It will be apparent that the accompanying drawing in the following describes is only some embodiments recorded in the present invention, for a person skilled in the art, when not paying creative work, it is also possible to according to figure below, obtain other accompanying drawing。
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the working state figure of the present invention；
Fig. 3 is the top view of conducting bar；
Wherein, the parts title that accompanying drawing labelling is corresponding is as follows:
1-fixed body, 2-shank, 3-expansion rod, 4-slip semicircle set, 5-turns on bar, 6-rotating shaft, 7-press strip, 8-shrouding, 9-spring, 10-knob, 11-connects axle, 12-secondary loop of mutual inductor socket, 101-positive stop lug boss, 201-hole, 202-Expandable strip, 203-protuberance, 204-anti-slip tank, 401-spacing preiection, 501-arc groove。
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete description。It will be apparent that embodiment described below is only the part in the embodiment of the present invention, rather than all。Based on the embodiment that the present invention records, other all embodiments that those skilled in the art obtain when not paying creative work, all in the scope of protection of the invention。
Embodiment 1:
As depicted in figs. 1 and 2, secondary loop of mutual inductor short-circuit device, including fixed body 1, shank 2, expansion rod 3, slip semicircle set 4, conducting bar 5, rotating shaft 6 and press strip 7, knob 10 and connection axle 11；Shank 2 is hollow cylinder, the outer surface of shank 2 offers the hole 201 of symmetry, is provided with Expandable strip 202 in hole 201, and the upper end of Expandable strip 202 is connected with the hole wall in hole 201, the other parts of Expandable strip 202 do not contact with the hole wall in hole 201, and the inner surface of Expandable strip 202 is provided with protuberance 203；Expansion rod 3 is slideably positioned in shank 2, the top of expansion rod 3 is positioned at outside shank 2, the bottom of expansion rod 3 is taper, the bottom of expansion rod 3 is positioned at the top of protuberance 203, the minimum diameter more than expansion rod 3 bottom of the distance between two protuberances 203 and the maximum gauge less than expansion rod 3 bottom；The top of shank 2 is fixed in fixed body 1；The outer surface sliding contact of slip semicircle set 4 and shank 2, the top of slip semicircle set 4 is positioned at shank 2 top end, and the bottom of slip semicircle set 4 is positioned at above hole 201；Rotating shaft 6 is fixed in fixed body 1, and rotating shaft 6 is positioned at above shank 2, and the centre position of press strip 7 is fixed in rotating shaft 6, and the two ends of press strip 7 overlap the top of 4 and the tip contact of expansion rod 3 respectively with slip semicircle；
Shank 2 is two；Connect axle 11 and be vertically installed in fixed body 1, connect axle 11 between two shanks 2, the centre position of conducting bar 5 connects with being connected axle 11, and the length of conducting bar 5 is more than the distance between two shanks 2, and knob 10 is arranged at the top of fixed body 1 and connects with being connected axle 11。
Operationally, being inserted by shank 2 in secondary loop of mutual inductor socket 12, two shanks 2 turn on by turning on bar 5, it is achieved short circuit。When shank 2 inserts in secondary loop of mutual inductor socket 12, the plane contact that slip semicircle set 4 is other with socket, slip semicircle overlaps 4 stress and moves up relative to shank 2, the top of slip semicircle set 4 and the end thereof contacts of press strip 7, the one end making press strip 7 moves upward, thus the other end of press strip 7 moves down and with the tip contact of expansion rod 3。Expansion rod 3 is pressed downward against by press strip 7, makes the bottom of expansion rod 3 insert between two protuberances 203 and Expandable strip 202 is outwards pushed up so that Expandable strip 202 is close to the inner surface of socket。
Want rapid translating extremely non-short circuit state, it is only necessary to turning knob 10, drive conducting bar 5 to rotate by connecting axle 11 so that conducting bar 5 does not contact with shank 2。
Embodiment 2:
As depicted in figs. 1 and 2, the present embodiment is on the basis of embodiment 1, and the outer surface of described Expandable strip 202 offers a plurality of anti-slip tank 204。
Embodiment 3:
As depicted in figs. 1 and 2, the present embodiment is on the basis of any one embodiment above-mentioned, and the bottom of described shank 2 is provided with shrouding 8；Also include the spring 9 being fixed on shrouding 8 upper surface。
After short-circuit plug inserts secondary loop of mutual inductor socket 12, spring 9 is compressed by the bottom of expansion rod 3, and after short-circuit plug takes out, expansion rod 3 is upwards pushed up by spring 9, the bottom making expansion rod 3 departs from protuberance 203, and expansion rod 3 and Expandable strip 202 automatically reset。
Embodiment 4:
As depicted in figs. 1 and 2, the present embodiment is on the basis of any one embodiment above-mentioned, and the outer surface of described slip semicircle set 4 is provided with spacing preiection 401；It is provided with positive stop lug boss 101 in described fixed body 1；Spacing preiection 401 is positioned at above positive stop lug boss 101。
Embodiment 5:
As it is shown on figure 3, the present embodiment is on the basis of any one embodiment above-mentioned, the two ends of described conducting bar 5 offer adapt with described shank 2 outer surface arc groove 501。
Arc groove 501 is set, it is possible to make conducting bar 5 bigger with the contact area of shank 2, thus realizing more stable effective conducting。
As it has been described above, the present invention just can be realized preferably。
Claims (3)
1. secondary loop of mutual inductor short-circuit device, it is characterised in that:
Including fixed body (1), shank (2), expansion rod (3), slip semicircle set (4), conducting bar (5), rotating shaft (6) and press strip (7), knob (10) and connection axle (11)；
Shank (2) is hollow cylinder, the outer surface of shank (2) offers the hole (201) of symmetry, hole (201) is provided with Expandable strip (202), the upper end of Expandable strip (202) is connected with the hole wall of hole (201), the other parts of Expandable strip (202) do not contact with the hole wall of hole (201), and the inner surface of Expandable strip (202) is provided with protuberance (203)；
Expansion rod (3) is slideably positioned in shank (2), the top of expansion rod (3) is positioned at shank (2) outward, the bottom of expansion rod (3) is taper, the bottom of expansion rod (3) is positioned at the top of protuberance (203), the minimum diameter more than expansion rod (3) bottom of the distance between two protuberances (203) and the maximum gauge less than expansion rod (3) bottom；
The top of shank (2) is fixed in fixed body (1)；The outer surface sliding contact of slip semicircle set (4) and shank (2), the top of slip semicircle set (4) is positioned at shank (2) top end, and the bottom of slip semicircle set (4) is positioned at top, hole (201)；
Rotating shaft (6) is fixed in fixed body (1), rotating shaft (6) is positioned at shank (2) top, the centre position of press strip (7) is fixed in rotating shaft (6), the two ends of press strip (7) respectively with the tip contact on the top of slip semicircle set (4) and expansion rod (3)；
Shank (2) is two；
Connect axle (11) and be vertically installed in fixed body (1), connect axle (11) and be positioned between two shanks (2), the centre position of conducting bar (5) connects with being connected axle (11), the length of conducting bar (5) is more than the distance between two shanks (2), and knob (10) is arranged at the top of fixed body (1) and connects with being connected axle (11)；
The outer surface of described Expandable strip (202) offers a plurality of anti-slip tank (204)；
The bottom of described shank (2) is provided with shrouding (8)；
Also include the spring (9) being fixed on shrouding (8) upper surface。
2. secondary loop of mutual inductor short-circuit device according to claim 1, it is characterised in that:
The outer surface of described slip semicircle set (4) is provided with spacing preiection (401)；
Positive stop lug boss (101) it is provided with in described fixed body (1)；
Spacing preiection (401) is positioned at positive stop lug boss (101) top。
3. secondary loop of mutual inductor short-circuit device according to claim 1, it is characterised in that:
The two ends of described conducting bar (5) offer adapt with described shank (2) outer surface arc groove (501)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215855.6A CN104007357B (en) | 2014-05-22 | 2014-05-22 | Secondary loop of mutual inductor short-circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410215855.6A CN104007357B (en) | 2014-05-22 | 2014-05-22 | Secondary loop of mutual inductor short-circuit device |
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| Publication Number | Publication Date |
|---|---|
| CN104007357A CN104007357A (en) | 2014-08-27 |
| CN104007357B true CN104007357B (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410215855.6A Active CN104007357B (en) | 2014-05-22 | 2014-05-22 | Secondary loop of mutual inductor short-circuit device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009356B (en) * | 2014-05-22 | 2016-02-03 | 国网四川省电力公司成都市新都供电分公司 | A kind of short-circuit device |
| CN110763878A (en) * | 2019-11-12 | 2020-02-07 | 衡阳市华仪电力互感器有限公司 | Low-voltage side short-circuit device of power transformer |
| CN112051516A (en) * | 2020-08-03 | 2020-12-08 | 广东电网有限责任公司 | Current transformer secondary circuit short circuit instrument |
| CN112630474A (en) * | 2020-12-10 | 2021-04-09 | 广东电网有限责任公司中山供电局 | Integral type area insulating handle's current transformer secondary circuit short circuit instrument |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2671691B2 (en) * | 1992-01-10 | 1997-10-29 | 住友電装株式会社 | connector |
| JPH0864309A (en) * | 1994-08-25 | 1996-03-08 | Sumitomo Wiring Syst Ltd | Short-circuitting connector |
| CN2302608Y (en) * | 1997-06-24 | 1998-12-30 | 洛阳航空电器厂 | Wire spring type electric connector |
| CN101557057B (en) * | 2008-04-10 | 2011-12-21 | 贵州航天电器股份有限公司 | Electric connector capable of realizing short circuit and open circuit switching between contact elements |
| CN201549802U (en) * | 2009-11-30 | 2010-08-11 | 福建省电力有限公司厦门电业局 | High-voltage insulation short-circuiting device |
| CN202997125U (en) * | 2013-01-15 | 2013-06-12 | 湖州开合电子有限公司 | Short-circuit protection electrical connector |
| CN203838280U (en) * | 2014-05-22 | 2014-09-17 | 国网四川省电力公司成都市新都供电分公司 | Current transformer secondary circuit short circuit device |
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