CN103052308B - Improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net - Google Patents
Improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net Download PDFInfo
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- CN103052308B CN103052308B CN201210532945.9A CN201210532945A CN103052308B CN 103052308 B CN103052308 B CN 103052308B CN 201210532945 A CN201210532945 A CN 201210532945A CN 103052308 B CN103052308 B CN 103052308B
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- fixed lever
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- gauze screen
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 15
- 230000005672 electromagnetic field Effects 0.000 title claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net, comprise vertical fixed lever (1) and horizontal fixed lever (2), described vertical fixed lever (1), equally spacedly respectively on upper horizontal fixed lever (2) and lower horizontal fixed lever (3) offer through hole, through hole is provided with connection fixture (7), on vertical fixed lever (1), mutually level two connection fixtures (7) fix with the two ends of gauze screen x wire (5) respectively, upper horizontal fixed lever (2) is above equally spaced offers through hole, through hole is provided with connection fixture (7), connection fixture (7) on one end of gauze screen vertical line (6) and upper horizontal fixed lever (2) fixes, structure of the present invention is simple, install easily fixing, gauze screen x wire and gauze screen vertical line are intertwined to form electromagnetic shielding net, good to the shield effectiveness of electromagnetism, shield effectiveness can be up to state standards, the scope of application is wide.
Description
Technical field
The present invention relates to a kind of gauze screen, particularly relate to one and improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net, belong to electromagnetic protection technical field.
Background technology
Overhead transmission line can produce the electromagnetic field of some strength in running, and electromagnetic radiation exceedes after after certain value and can have a negative impact to the productive life of people.For improving the power frequency electromagnet field intensity of the building of overhead transmission line periphery, make it the requirement meeting " 4kV/m residential block power frequency electric field evaluation criterion " in HJ/T 24-1998 " 500kV superhigh pressure transmission and transformation engineering electromagnetic radiation environment effect appraise technical specification ".Existing gauze screen structure is simple, and install fixing inconvenient, can not select the density of gauze screen as required, effectiveness is not good.
As Chinese invention patent notification number: CN102056469A, publication date: the patent of invention on May 11st, 2011 discloses gauze screen draw off gear, it is by main shaft, drive sprocket, shaft stool, guide rail holder, gauze screen formed, both sides at gauze screen are provided with guide rail, the upper end of guide rail is provided with main shaft, one end of main shaft is provided with drive sprocket, one end of main shaft is fixed on guide rail by shaft stool, main shaft on be provided with gauze screen, gauze screen is provided with several slide blocks on the both sides of net, the slide block guide rail that can arrange in the both sides of gauze screen in slide up and down.But this device volume is comparatively large, can only carry out folding and unfolding, effectively can not shield electromagnetism, use inconvenience gauze screen.
Summary of the invention
The object of the invention is, for existing gauze screen, fixing inconvenience is installed, the density of gauze screen can not be selected as required, the defect that effectiveness is not good and deficiency, there is provided a kind of structure simple, easy for installation, the density of gauze screen can be selected as required, the improvement overhead transmission line periphery power frequency electromagnetic field fixed shielding net that effectiveness is good.
For achieving the above object, technical solution of the present invention is: improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net, comprise vertical fixed lever and horizontal fixed lever, vertical fixed lever and upper horizontal fixed lever form gate or two vertical fixed levers and upper horizontal fixed lever and lower horizontal fixed lever and to join end to end formation rectangle, described vertical fixed lever, equally spacedly respectively on upper horizontal fixed lever and lower horizontal fixed lever offer through hole, through hole is provided with connection fixture, on vertical fixed lever, mutually level two connection fixtures fix with the two ends of gauze screen x wire respectively, equally spacedly on upper horizontal fixed lever offer through hole, through hole is provided with connection fixture, connection fixture on one end of gauze screen vertical line and upper horizontal fixed lever fixes, the other end of the gauze screen vertical line connection fixture corresponded on lower horizontal fixed lever is fixed or directly perpendicularly with the gauze screen x wire be positioned at bottom to be fixed, the centre of connection fixture is provided with through hole, the sidewall of connection fixture offers screwed hole, in screwed hole, clamping screw is installed.
The bottom of described vertical fixed lever is arranged on hold-down support.
Described gauze screen x wire and gauze screen vertical line all adopt the annealed copper wire with good magnetic property.
Described vertical fixed lever, upper horizontal fixed lever and lower horizontal fixed lever adopt the good metal of magnetic property to make.
The invention has the beneficial effects as follows:
1. the present invention is fixed with upper horizontal fixed lever and lower horizontal fixed lever between vertical fixed lever, and equally spacedly respectively on vertical fixed lever, upper horizontal fixed lever and lower horizontal fixed lever be fixed with connection fixture, be fixedly connected with gauze screen x wire and gauze screen vertical line by connection fixture, gauze screen x wire and gauze screen vertical line are intertwined to form electromagnetic shielding net.
2. structure of the present invention is simple, and install easily fixing, good to the shield effectiveness of electromagnetism, shield effectiveness can be up to state standards, and the scope of application is wide.
Accompanying drawing explanation
Fig. 1 is the first structural representation of the present invention.
Fig. 2 is the second structural representation of the present invention.
In figure: vertical fixed lever 1, upper horizontal fixed lever 2, lower horizontal fixed lever 3, hold-down support 4, gauze screen x wire 5, gauze screen vertical line 6, connection fixture 7, power transmission line 8, house owed by a citizen 9.
Embodiment
Illustrate that the present invention is described in further detail with embodiment below in conjunction with accompanying drawing.
See Fig. 1, Fig. 2, of the present inventionly improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net, comprise vertical fixed lever 1 and horizontal fixed lever 2, vertical fixed lever 1 and upper horizontal fixed lever 2 form gate or two vertical fixed levers 1 and upper horizontal fixed lever 2 and lower horizontal fixed lever 3 and to join end to end formation rectangle, described vertical fixed lever 1, equally spacedly respectively on upper horizontal fixed lever 2 and lower horizontal fixed lever 3 offer through hole, through hole is provided with connection fixture 7, on vertical fixed lever 1, mutually level two connection fixtures 7 fix with the two ends of gauze screen x wire 5 respectively, equally spacedly on upper horizontal fixed lever 2 offer through hole, through hole is provided with connection fixture 7, connection fixture 7 on one end of gauze screen vertical line 6 and upper horizontal fixed lever 2 fixes, the connection fixture 7 gauze screen x wire 5 that is fixing or direct and that be positioned at bottom that the other end of gauze screen vertical line 6 corresponds on lower horizontal fixed lever 3 is perpendicular fixing, the centre of connection fixture 7 is provided with through hole, the sidewall of connection fixture 7 offers screwed hole, in screwed hole, clamping screw is installed.
The bottom of described vertical fixed lever 1 is arranged on hold-down support 3.
Described gauze screen x wire 5 and gauze screen vertical line 6 all adopt the annealed copper wire with good magnetic property.
The metal that described vertical fixed lever 1, upper horizontal fixed lever 2 and lower horizontal fixed lever 3 adopt magnetic property good is made.
Vertical fixed lever 1 is two, the bottom of vertical fixed lever 1 is arranged on hold-down support 3 respectively, be mounted with upper horizontal fixed lever 2 between vertical fixed lever 1 and form gate framework, or be mounted with upper horizontal fixed lever 2 and lower horizontal fixed lever 3 between vertical fixed lever 1, form rectangular frame.The metal that vertical fixed lever 1, upper horizontal fixed lever 2 and lower horizontal fixed lever 3 adopt magnetic property good is made, and can play the effect of support and magnetic conduction preferably.
Equally spacedly respectively on vertical fixed lever 1, upper horizontal fixed lever 2 and lower horizontal fixed lever 3 offer through hole, through hole is provided with connection fixture 7.The centre of connection fixture 7 is provided with through hole, the sidewall of connection fixture 7 offers screwed hole, is provided with clamping screw in screwed hole, and connection fixture 7 is for fixed mask net x wire 5 and gauze screen vertical line 6.Gauze screen x wire 5 and gauze screen vertical line 6 all adopt the annealed copper wire with good magnetic property.
When adopting gate framework, on vertical fixed lever 1, mutually level two connection fixtures 7 fix with the two ends of gauze screen x wire 5 respectively, connection fixture 7 on one end of gauze screen vertical line 6 and upper horizontal fixed lever 2 fixes, the connection fixture 7 that the other end of gauze screen vertical line 6 corresponds on lower horizontal fixed lever 3 is fixed, and such gauze screen x wire 5 and gauze screen vertical line 6 have been intertwined to form electromagnetic shielding net on horizontal and vertical.
When adopting rectangular frame, on vertical fixed lever 1, mutually level two connection fixtures 7 fix with the two ends of gauze screen x wire 5 respectively, connection fixture 7 on one end of gauze screen vertical line 6 and upper horizontal fixed lever 2 fixes, the other end of gauze screen vertical line 6 is perpendicular fixing with the gauze screen x wire 5 be positioned at bottom, same gauze screen x wire 5 and gauze screen vertical line 6 have been intertwined to form electromagnetic shielding net on horizontal and vertical, also can gauze screen x wire 5 and gauze screen vertical line 6 be first fixed on a framework, then by this frame installation at vertical fixed lever 1, on upper horizontal fixed lever 2 and lower horizontal fixed lever 3.
Claims (4)
1. improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net, comprise vertical fixed lever (1) and horizontal fixed lever (2), vertical fixed lever (1) and upper horizontal fixed lever (2) form gate or two vertical fixed levers (1) and upper horizontal fixed lever (2) and lower horizontal fixed lever (3) and to join end to end formation rectangle, it is characterized in that: described vertical fixed lever (1), equally spacedly respectively on upper horizontal fixed lever (2) and lower horizontal fixed lever (3) offer through hole, through hole is provided with connection fixture (7), on vertical fixed lever (1), mutually level two connection fixtures (7) fix with the two ends of gauze screen x wire (5) respectively, upper horizontal fixed lever (2) is above equally spaced offers through hole, through hole is provided with connection fixture (7), connection fixture (7) on one end of gauze screen vertical line (6) and upper horizontal fixed lever (2) fixes, connection fixture (7) the gauze screen x wire (5) that is fixing or direct and that be positioned at bottom that the other end of gauze screen vertical line (6) corresponds on lower horizontal fixed lever (3) is perpendicular fixing, the centre of connection fixture (7) is provided with through hole, the sidewall of connection fixture (7) offers screwed hole, in screwed hole, clamping screw is installed.
2. according to claim 1ly improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net, it is characterized in that: the bottom of described vertical fixed lever (1) is arranged on hold-down support (3).
3. according to claim 1ly improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net, it is characterized in that: described gauze screen x wire (5) and gauze screen vertical line (6) all adopt the annealed copper wire with good magnetic property.
4. according to claim 1ly improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net, it is characterized in that: described vertical fixed lever (1), upper horizontal fixed lever (2) and lower horizontal fixed lever (3) adopt the good metal of magnetic property to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532945.9A CN103052308B (en) | 2012-12-12 | 2012-12-12 | Improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210532945.9A CN103052308B (en) | 2012-12-12 | 2012-12-12 | Improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103052308A CN103052308A (en) | 2013-04-17 |
| CN103052308B true CN103052308B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210532945.9A Active CN103052308B (en) | 2012-12-12 | 2012-12-12 | Improve overhead transmission line periphery power frequency electromagnetic field fixed shielding net |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2346919Y (en) * | 1998-10-24 | 1999-11-03 | 王玺 | Cloth fire-proofing shutter |
| CN201191741Y (en) * | 2008-04-22 | 2009-02-04 | 上海市电力公司 | Three phase conductive wire insulation fixing rack |
| CN102056469A (en) * | 2009-10-29 | 2011-05-11 | 范茂荣 | Retraction device for shielding net |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH081999B2 (en) * | 1989-05-17 | 1996-01-10 | フクビ化学工業株式会社 | Transparent electromagnetic wave shield material |
-
2012
- 2012-12-12 CN CN201210532945.9A patent/CN103052308B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2346919Y (en) * | 1998-10-24 | 1999-11-03 | 王玺 | Cloth fire-proofing shutter |
| CN201191741Y (en) * | 2008-04-22 | 2009-02-04 | 上海市电力公司 | Three phase conductive wire insulation fixing rack |
| CN102056469A (en) * | 2009-10-29 | 2011-05-11 | 范茂荣 | Retraction device for shielding net |
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|---|---|
| CN103052308A (en) | 2013-04-17 |
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Effective date of registration: 20161009 Address after: 430077 No. 47 Xu Dong Road, fruit lake street, Wuchang District, Hubei, Wuhan Patentee after: Econimic Research Institute of Grid State Hubei Power Supply Company Patentee after: Hubei Electric Power Research Institute of Power Company Patentee after: State Grid Corporation of China Address before: 430077, 359 East Main Street, Wuchang District, Hubei, Wuhan Patentee before: Wuhan Central China Power Grid Co., Ltd. Patentee before: Hubei Electric Power Research Institute of Power Company Patentee before: State Grid Corporation of China |