CN105958416A - Broken line self-falling off power transmission line fixing device - Google Patents
Broken line self-falling off power transmission line fixing device Download PDFInfo
- Publication number
- CN105958416A CN105958416A CN201610330383.8A CN201610330383A CN105958416A CN 105958416 A CN105958416 A CN 105958416A CN 201610330383 A CN201610330383 A CN 201610330383A CN 105958416 A CN105958416 A CN 105958416A
- Authority
- CN
- China
- Prior art keywords
- power transmission
- transmission line
- bar shaped
- slide opening
- slide block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 92
- 230000006835 compression Effects 0.000 claims abstract description 14
- 238000007906 compression Methods 0.000 claims abstract description 14
- 230000006698 induction Effects 0.000 claims description 14
- 230000003068 static effect Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 9
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010417 needlework Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/18—Devices affording mechanical protection in the event of breakage of a line or cable, e.g. net for catching broken lines
Landscapes
- Electric Cable Installation (AREA)
Abstract
The present invention provides a broken line self-falling off power transmission line fixing device. The device comprises an electric wire fixing member comprising a strip-like sliding hole from which a power transmission line penetrates, a line supporting sliding block capable of sliding up and down is arranged inside the strip-like sliding hole, and the power transmission line is arranged on the line supporting sliding block. A compression spring is arranged under the line supporting sliding block, the upper end of the strip-like sliding hole is equipped with a cutting edge, and a threading frame is also fixed on the electric wire fixing member and is symmetrically equipped with a pair of external threading holes from which the power transmission line can penetrate at the two sides of the strip-like sliding hole. A sliding frame capable of sliding forth and back in the threading frame is arranged at the inner side of the threading frame and is equipped with a pair of internal threading holes from which the power transmission line can penetrate at the two sides of the strip-like sliding hole, the internal threading holes are lower than the external threading holes, and when the sliding frame slides to the limit position of any side, the penetration-through area of the internal hole and the external hole at the side is less than the cross-section area of the power transmission line. The broken line self-falling off power transmission line fixing device is assembled on a power transmission rack, and enables the broken power transmission line to fall off from a power grid totally when the power transmission line breaks accidently, thereby eliminating the potential safety hazards.
Description
Technical field
The present invention relates to field of transmission equipment, especially, relate to a kind of power transmission line fixing device.
Background technology
For current power transmission line, when power transmission line ruptures, broken string hangs down into ground, then will produce step voltage on ground, or power transmission line breaks the end of a thread directly contact dough figurine body or combustible, all will cause great danger.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of power transmission line fixing device that certainly comes off that breaks, this device is assemblied on transmission of electricity frame, the power transmission line of fracture can be made to come off from electrical network completely, to eliminate safe hidden trouble when occurring power transmission line surprisingly to rupture.
The technical solution adopted for the present invention to solve the technical problems is: this broken string includes being assemblied in the electric wire fixture transmitted electricity on frame from the power transmission line fixing device that comes off；Described electric wire fixture includes being available for the bar shaped slide opening that power transmission line passes；Being provided with a pillow line slide block that can slide up and down along bar shaped slide opening in described bar shaped slide opening, power transmission line pillows above this pillow line slide block；It is provided with a compression spring between lower section and the lower end of described bar shaped slide opening of described pillow line slide block；The upper end of described bar shaped slide opening is provided with cutting cutting edge；Also fixing a threading framework on described electric wire fixture, described threading framework is symmetrically arranged on two with, at described bar shaped slide opening, the outer perforation passed for power transmission line a pair；A sliding frame that can slidably reciprocate between perforation outside the two of threading framework it is provided with inside described threading framework；On described sliding frame, offer the interior perforation passed for power transmission line a pair in the both sides of described bar shaped slide opening；The upper end of described interior perforation is less than the upper end of outer perforation, and when described sliding frame slides into any one side pole extreme position, the described interior perforation of this side is less than the cross-sectional area of power transmission line with the through area of outer perforation.
As preferably, described sliding frame is matched with in the chute being opened on described threading framework by the roller bearing of upper and lower sides so that sliding frame can along the direction orthogonal with described bar shaped slide opening in described threading framework slidably.
As preferably, the lower end of described compression spring interfixes with the lower end of described bar shaped slide opening, and do not fix between the upper end of compression spring and described pillow line slide block, so that compression spring does not the most form downward pull strength to pillow line slide block, improve the maximum upper punch kinetic energy of pillow line slide block.
As preferably, the shape on described pillow line slide block top is V-shaped as viewed from the described penetrating direction of bar shaped slide opening, to suppress power transmission line rolling in pillow line slide block；The top of described pillow line slide block and described cutting edge interruption-forming chopper structure.
As preferably, described electric wire fixture is shaped with bolt hole, is fixed on transmission of electricity frame by bolt pair.
As preferably, in described electric wire fixture, the part surrounding described bar shaped slide opening is formed by the stalloy stacking of rectangular frame-shaped, is a silicon steel frame；Having induction coil on the frame arm of described silicon steel frame around the home, an outfan of described induction coil is electrically connected with described cutting cutting edge, and another outfan is electrically connected to the static contact inside described bar shaped slide opening；The surface contacted with each other of described bar shaped slide opening and pillow line slide block is provided with insulating barrier；The side of described pillow line slide block is provided with the moving contact matched with described static contact, and during and if only if pillow line slide block slides into topmost, described static contact, moving contact are in electrical contact；Further, described moving contact is to more than resistance is described induction coil 2 times rested the head between line upper end of slide block.
The beneficial effects of the present invention is: this broken string is from coming off power transmission line fixing device in use, if the electric wire of transmission of electricity any side of frame surprisingly ruptures, then due to the instantaneous weightlessness of power transmission line of side of rupturing, the pressure resting the head on line slide block described in wire pair is made to die-off, so that the elastic force of described compression spring is released, make in bar shaped slide opening that electric wire is instantaneous is biased toward described cutting cutting edge, and cut cutting edge is cut off, so that the power transmission line of fracture side departs from electrical network, land completely；On the other hand, owing to the lateral pull of power transmission line non-fracture side is more than fracture side, described sliding frame is caused to be pulled to the non-fracture side of power transmission line, ultimately result in the described interior perforation of power transmission line non-fracture side, power transmission line is blocked by outer perforation, the non-fracture side making power transmission line cannot this power transmission line fixing device, and power transmission line the fracture interior perforation of side, outer perforation are due to apart from each other, the power transmission line of fracture can be made smoothly to pass and fall earthward.
Accompanying drawing explanation
Fig. 1 is that this broken string comes off in power transmission line fixing device certainly, the structural representation of the embodiment one of electric wire fixture.
Fig. 2 is this broken string from coming off in power transmission line fixing device, electric wire fixture and threading framework, sliding frame coordinate schematic diagram.
Fig. 3 is that this broken string comes off in power transmission line fixing device certainly, the structural representation of the embodiment two of electric wire fixture.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings:
Embodiment one:
In the embodiment one shown in Fig. 1, Fig. 2, this broken string includes being assemblied in the electric wire fixture 1 transmitted electricity on frame from the power transmission line fixing device that comes off；Described electric wire fixture 1 includes being available for the bar shaped slide opening 10 that power transmission line passes；Being provided with a pillow line slide block 11 that can slide up and down along bar shaped slide opening 10 in described bar shaped slide opening 10, power transmission line 3 pillows above this pillow line slide block 11；It is provided with a compression spring 12 between lower section and the lower end of described bar shaped slide opening 10 of described pillow line slide block 11；The upper end of described bar shaped slide opening 10 is provided with cutting cutting edge 13.
Above-mentioned power transmission line fixing device, the lower end of described compression spring 12 interfixes with the lower end of described bar shaped slide opening 10, and do not fix between the upper end of compression spring 12 and described pillow line slide block 11, so that compression spring 12 does not forms downward pull strength to pillow line slide block 11, improve the maximum upper punch kinetic energy of pillow line slide block 11.The shape on described pillow line slide block 11 top is V-shaped as viewed from the described penetrating direction of bar shaped slide opening 10, to suppress the power transmission line 3 rolling in pillow line slide block 11；The top of described pillow line slide block 11 and described cutting cutting edge 13 form chopper structure.It is shaped with bolt hole 100 on described electric wire fixture 1, is fixed on transmission of electricity frame by bolt pair.
As in figure 2 it is shown, also fix a threading framework 2 on described electric wire fixture 1, described threading framework 2 is symmetrically arranged on two with, at described bar shaped slide opening 10, the outer perforation 20 passed for power transmission line 3 a pair；A sliding frame 4 that can slidably reciprocate between perforation 20 outside the two of threading framework 2 it is provided with inside described threading framework 2；On described sliding frame 4, offer the interior perforation 40 passed for power transmission line 3 a pair in the both sides of described bar shaped slide opening 10；The upper end of described interior perforation 40 is less than the upper end of outer perforation 20, and when described sliding frame 4 slides into any one side pole extreme position, the described interior perforation 40 of this side is less than the cross-sectional area of power transmission line 3 with the through area of outer perforation 20；In the present embodiment one, described sliding frame 4 is matched with in the chute 21 being opened on described threading framework 2 by the roller bearing 41 of upper and lower sides so that sliding frame 4 can along the direction orthogonal with described bar shaped slide opening in described threading framework 2 slidably.
Above-mentioned broken string is from coming off power transmission line fixing device in use, if the unexpected fracture of the power transmission line 3 of transmission of electricity any side of frame, then due to the instantaneous weightlessness of power transmission line 3 of side of rupturing, make power transmission line that the pressure of described pillow line slide block 11 to be die-offed, so that the elastic force of described compression spring 12 is released, make in bar shaped slide opening 10 that power transmission line 3 is instantaneous is biased toward described cutting cutting edge 13, and cut cutting edge 13 is cut off, so that the power transmission line 3 of fracture side departs from electrical network, land completely；On the other hand, owing to the lateral pull of power transmission line 3 non-fracture side is more than fracture side, described sliding frame 4 is caused to be pulled to the non-fracture side of power transmission line, ultimately result in the described interior perforation 40 of power transmission line 3 non-fracture side, power transmission line 3 is blocked by outer perforation 20, the non-fracture side making power transmission line 3 cannot this power transmission line fixing device, and power transmission line 3 ruptures, the interior perforation 40 of side, outer perforation 20 are due to apart from each other, and the power transmission line 3 of fracture can be made smoothly to pass and fall earthward.
Embodiment two:
For described electric wire fixture 1, embodiment two is as it is shown on figure 3, unlike embodiment one, in described electric wire fixture 1, the part surrounding described bar shaped slide opening 10 is formed by the stalloy stacking of rectangular frame-shaped, is a silicon steel frame；Having induction coil 101 on the frame arm of described silicon steel frame around the home, an outfan of described induction coil 101 is electrically connected with described cutting cutting edge 13, and another outfan is electrically connected to the static contact 102 inside described bar shaped slide opening 10；Described bar shaped slide opening 10 and pillow line slide block 11 the surface contacted with each other be provided with insulating barrier, described induction coil 101 is located at inside the insulating barrier on bar shaped slide opening 10, in case with pillow line slide block 11 phase friction；The side of described pillow line slide block 11 is provided with the moving contact 112 matched with described static contact 102, during and if only if needlework slide block 11 slides into topmost, described static contact 102, moving contact 112 are in electrical contact, i.e., only when cutting cutting edge 13 and switching to power transmission line 3, static contact 102, moving contact 112 are just connected, so that the induction electric energy of induction coil 101 is exported, make cutting cutting edge 13, do not have the high heat of generation between cut-off power transmission line 3 and pillow line slide block 11, to soften power transmission line 3.It may be noted that, in the case of power transmission line 3 has been cut off, due to power transmission line 3 no longer ground connection, the power transmission line part being therefore in bar shaped slide opening 10 no longer has electric current, in described silicon steel frame, the most do not form alternating flux, so described induction coil 101 will no longer export electric energy, automatically avoid persistent fever in bar shaped slide opening 10；Only when the power transmission line 3 in bar shaped slide opening is not switched off, export electric current over the ground owing to sagging power transmission line has, in silicon steel frame, just form alternating magnetic field, so that induction coil 101 persistently exports electric energy, promoting the internal heating continuously of bar shaped slide opening 10, until softening power transmission line 3, being allowed to be cut off easily.It addition, in order to make heat concentrate between cutting cutting edge 13, power transmission line 3, pillow line slide block 11, more than 2 times that resistance is described induction coil 101 between described moving contact 112 to pillow line slide block 11 upper end.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of being made, equivalent, should be included within the scope of the present invention.
Claims (7)
1. broken string is from coming off a power transmission line fixing device, and this broken string includes being assemblied in the electric wire fixture (1) transmitted electricity on frame from the power transmission line fixing device that comes off；It is characterized in that: described electric wire fixture (1) includes being available for the bar shaped slide opening (10) that power transmission line passes；Being provided with pillow line slide block (11) that can slide up and down along bar shaped slide opening in described bar shaped slide opening (10), high voltage transmission line (3) pillows this pillow line slide block (11) top；It is provided with a compression spring (12) between lower section and the lower end of described bar shaped slide opening (10) of described pillow line slide block (11)；The upper end of described bar shaped slide opening (10) is provided with cutting cutting edge (13)；Also fixing a threading framework (2) on described electric wire fixture (1), described threading framework (2) is symmetrically arranged on two with a pair for power transmission line (3) the outer perforation (20) that passes described bar shaped slide opening (10)；Described threading framework (2) inner side is provided with a sliding frame (4) that can slidably reciprocate between perforation (20) outside two of threading framework (2)；On described sliding frame (4), offer the interior perforation (40) passed for power transmission line (3) a pair in the both sides of described bar shaped slide opening (10)；The upper end of described interior perforation (40) is less than the upper end of outer perforation (20), and when described sliding frame (4) slides into any one side pole extreme position, the described interior perforation (40) of this side is less than the cross-sectional area of power transmission line (3) with the through area of outer perforation (20).
Safety high voltage power transmission wire system the most according to claim 1, it is characterized in that: described sliding frame (4) is matched with by the roller bearing (41) of upper and lower sides in the chute (21) that is opened on described threading framework (2) so that sliding frame (4) can along the direction orthogonal with described bar shaped slide opening in described threading framework (2) slidably.
Safety high voltage power transmission wire system the most according to claim 1, it is characterized in that: the lower end of described compression spring (12) interfixes with the lower end of described bar shaped slide opening (10), and does not fixes between the upper end of compression spring (12) and described pillow line slide block (11).
Safety high voltage power transmission wire system the most according to claim 1, it is characterised in that: the shape on described pillow line slide block (11) top is V-shaped as viewed from the penetrating direction of described bar shaped slide opening (10)；The top of described pillow line slide block (11) forms chopper structure with described cutting cutting edge (13).
Safety high voltage power transmission wire system the most according to claim 1, it is characterised in that: it is shaped with bolt hole (100) on described electric wire fixture (1), is fixed on transmission of electricity frame by bolt pair.
Safety high voltage power transmission wire system the most as claimed in any of claims 1 to 5, it is characterised in that: in described electric wire fixture (1), the part surrounding described bar shaped slide opening (10) is formed by the stalloy stacking of rectangular frame-shaped, is a silicon steel frame；Having induction coil (101) on the frame arm of described silicon steel frame around the home, an outfan of described induction coil (101) is electrically connected with described cutting cutting edge (13), and another outfan is electrically connected to the static contact (102) of described bar shaped slide opening (10) inner side；The surface contacted with each other of described bar shaped slide opening (10) and pillow line slide block (11) is provided with insulating barrier；The side of described pillow line slide block (11) is provided with the moving contact (112) matched with described static contact (102), and during and if only if pillow line slide block (11) slides into topmost, described static contact (102), moving contact (112) are in electrical contact.
Safety high voltage power transmission wire system the most according to claim 6, it is characterised in that: more than 2 times that resistance is described induction coil (101) between described moving contact (112) to pillow line slide block (11) upper end.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330383.8A CN105958416B (en) | 2016-05-18 | 2016-05-18 | Break from the power transmission line fixing device that comes off |
| CN201710632170.5A CN107181230B (en) | 2016-05-18 | 2016-05-18 | The method for eliminating step voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610330383.8A CN105958416B (en) | 2016-05-18 | 2016-05-18 | Break from the power transmission line fixing device that comes off |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710632170.5A Division CN107181230B (en) | 2016-05-18 | 2016-05-18 | The method for eliminating step voltage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105958416A true CN105958416A (en) | 2016-09-21 |
| CN105958416B CN105958416B (en) | 2017-09-15 |
Family
ID=56912921
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710632170.5A Active CN107181230B (en) | 2016-05-18 | 2016-05-18 | The method for eliminating step voltage |
| CN201610330383.8A Active CN105958416B (en) | 2016-05-18 | 2016-05-18 | Break from the power transmission line fixing device that comes off |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710632170.5A Active CN107181230B (en) | 2016-05-18 | 2016-05-18 | The method for eliminating step voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107181230B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524936A (en) * | 2019-01-02 | 2019-03-26 | 广东南方电信规划咨询设计院有限公司 | It is a kind of for communicating the cable self-detaching device in overhead transmission line |
| CN112573290A (en) * | 2020-10-28 | 2021-03-30 | 国家电网有限公司 | Cable high altitude accommodating device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110974021A (en) * | 2019-09-26 | 2020-04-10 | 杭州为我健康新零售科技有限公司 | Electric leakage protection system and electric leakage protection method suitable for honey beverage vending machine |
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| US5255150A (en) * | 1991-12-11 | 1993-10-19 | Young J Ronald | Grounding device for power lines |
| CN102306567A (en) * | 2011-06-13 | 2012-01-04 | 四川省电力公司西昌电业局 | Wire disconnecting and de-energizing device |
| CN203180459U (en) * | 2013-03-26 | 2013-09-04 | 杨晴 | A high-voltage line fracture protection apparatus |
| CN103904603A (en) * | 2014-02-27 | 2014-07-02 | 广东电网公司电力科学研究院 | Distribution line typhoon-preventing integrated device capable of achieving pole and wire protecting and achieving pole protecting, wire abandoning, energy absorbing and disengaging |
| CN105356370A (en) * | 2015-12-01 | 2016-02-24 | 广东电网有限责任公司电力科学研究院 | Wire abandoning and pole protecting device for distribution circuit under nature disaster exceeding designed condition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005253235A (en) * | 2004-03-05 | 2005-09-15 | Daimei Kk | Coil-like cable hanger elongating device |
| CN103219682B (en) * | 2013-05-06 | 2015-07-08 | 丁云广 | Power transmission line disconnection protection and emergency power supply device |
| JP5989696B2 (en) * | 2014-03-17 | 2016-09-07 | 中国電力株式会社 | Wire coating stripping tool |
| CN203895909U (en) * | 2014-05-05 | 2014-10-22 | 许昌县电业公司 | Cable warning board hanging member |
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- 2016-05-18 CN CN201710632170.5A patent/CN107181230B/en active Active
- 2016-05-18 CN CN201610330383.8A patent/CN105958416B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5255150A (en) * | 1991-12-11 | 1993-10-19 | Young J Ronald | Grounding device for power lines |
| CN102306567A (en) * | 2011-06-13 | 2012-01-04 | 四川省电力公司西昌电业局 | Wire disconnecting and de-energizing device |
| CN203180459U (en) * | 2013-03-26 | 2013-09-04 | 杨晴 | A high-voltage line fracture protection apparatus |
| CN103904603A (en) * | 2014-02-27 | 2014-07-02 | 广东电网公司电力科学研究院 | Distribution line typhoon-preventing integrated device capable of achieving pole and wire protecting and achieving pole protecting, wire abandoning, energy absorbing and disengaging |
| CN105356370A (en) * | 2015-12-01 | 2016-02-24 | 广东电网有限责任公司电力科学研究院 | Wire abandoning and pole protecting device for distribution circuit under nature disaster exceeding designed condition |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524936A (en) * | 2019-01-02 | 2019-03-26 | 广东南方电信规划咨询设计院有限公司 | It is a kind of for communicating the cable self-detaching device in overhead transmission line |
| CN109524936B (en) * | 2019-01-02 | 2024-02-02 | 广东南方电信规划咨询设计院有限公司 | Cable self-releasing device for communication overhead line |
| CN112573290A (en) * | 2020-10-28 | 2021-03-30 | 国家电网有限公司 | Cable high altitude accommodating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107181230B (en) | 2019-01-08 |
| CN105958416B (en) | 2017-09-15 |
| CN107181230A (en) | 2017-09-19 |
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Inventor after: Hong Dongke Inventor before: Zhu Xiaoju |
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Effective date of registration: 20170815 Address after: 325000 No. 2 Yang Jin Road, Haicheng street, Wenzhou economic and Technological Development Zone, Zhejiang, China Applicant after: Hong Dongke Address before: Wujiang Pingwang Town District of Suzhou City, Jiangsu province 215221 Yang Village neighborhood committee Applicant before: Zhu Xiaoju |
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Address after: 430223 No.1, Liu Jiawan, Pu'an village, Miaoshan Development Zone, Jiangxia District, Wuhan City, Hubei Province Patentee after: Hong Dongke Address before: 325000 No. 2 Yang Jin Road, Haicheng street, Wenzhou economic and Technological Development Zone, Zhejiang, China Patentee before: Hong Dongke |
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Effective date of registration: 20201126 Address after: 226000 floor 12, building 1, 388 Yongxing Avenue, Gangzha District, Nantong City, Jiangsu Province Patentee after: Nantong Zhongzhi Testing Service Co.,Ltd. Address before: 430223 No.1, Liu Jiawan, Pu'an village, Miaoshan Development Zone, Jiangxia District, Wuhan City, Hubei Province Patentee before: Hong Dongke |