CN108557594A - A kind of lightning current current divider and installation method with self-locking device - Google Patents
A kind of lightning current current divider and installation method with self-locking device Download PDFInfo
- Publication number
- CN108557594A CN108557594A CN201810327241.5A CN201810327241A CN108557594A CN 108557594 A CN108557594 A CN 108557594A CN 201810327241 A CN201810327241 A CN 201810327241A CN 108557594 A CN108557594 A CN 108557594A
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- Prior art keywords
- self
- lightning current
- locking device
- fixed
- copper
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- Granted
Links
- 238000009434 installation Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000010949 copper Substances 0.000 claims abstract description 53
- 229910052802 copper Inorganic materials 0.000 claims abstract description 53
- 238000007667 floating Methods 0.000 claims description 34
- 239000010779 crude oil Substances 0.000 claims description 13
- 239000004677 Nylon Substances 0.000 claims description 12
- 229920001778 nylon Polymers 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 208000025274 Lightning injury Diseases 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000004643 material aging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4436—Arrangements for yieldably braking the reel or the material for moderating speed of winding or unwinding
- B65H75/4439—Arrangements for yieldably braking the reel or the material for moderating speed of winding or unwinding acting directly on the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
- B65D90/46—Arrangements for carrying off, or preventing the formation of electrostatic charges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/48—Automatic re-storing devices
- B65H75/486—Arrangements or adaptations of the spring motor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/146—Measuring arrangements for current not covered by other subgroups of G01R15/14, e.g. using current dividers, shunts, or measuring a voltage drop
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of lightning current current divider with self-locking device, including lightning current diverter mechanism, there are plane scroll spring and copper braid over braid in the lightning current diverter mechanism, one end of plane scroll spring is fixed on the shell of lightning current diversion structure, and the other end is fixed on the main shaft being connected with reel；On one end of copper braid over braid is fixed on the reel in lightning current diversion structure Nei, the other end passes through the self-locking device being fixed on lightning current diversion structure, the self-locking device can be in one reaction force of copper braid over braid to be stretched under swing state, its stretching speed is reduced, plane scroll spring is made to be in stable state.The configuration of the present invention is simple, it is novel in design, improve plane scroll spring service life.
Description
Technical field
The invention belongs to lightning current current dividers, and in particular to a kind of lightning current current divider with self-locking device.
Background technology
Large-scale crude oil stock tank is generally floating roof tank, its floating plate is swum in above crude oil when use.Currently, former in order to prevent
Oil and gas is leaked from the edge of floating plate, is usually sealed against, this sealing is completed by non-conductive material, usually butyronitrile rubber
Glue, this material can make electric insulation between floating plate and tank skin, and floating plate is made to become isolated conductor.Since crude oil resistivity is higher,
Thunder and lightning occurs and crude oil can generate a large amount of electrostatic charges when crude oil quick tinning, these charges will gradually be transferred to one and carry
Opposite charges has on the conductor of gravitation, and crude oil electrostatic charge will be collected due to being influenced floating plate by tank skin low potential, the electrostatic charge
Induced voltage is up to kilovolts up to a hundred, and air puncture voltage is about 500kV/m, and standard floating plate and tank skin gap are about 250mm, due to
Sealing material aging and process deviation, floating plate can be reduced with tank skin gap, and electrostatic charge induced voltage between the two is about 100kV
When can form the spill over of igniting property, once sealing material aging oil and gas is overflowed, you can cause fire incident.National standard
《Code for design of petroleum depots》(GB 50074-2002) and《Oil and petroleum installations thunder and lightning safety standard》(GB15599-95) to floating
Disk lightning protection, anti-static grounding have clear stipulaties：" floating top oil tank or covered floating roof tank should not install lightning rod, but should be by floating roof
It is electrically connected with 2 conducting wires with tank body.Floating top oil tank connecting wire should select cross section to be not less than 25mm2Soft copper twist again
Line.For covered floating roof tank, steel floating plate oil tank connecting wire should select cross section to be not less than 16mm2Soft copper answer twisted wire；Aluminium
Matter floating plate oil tank connecting wire should select the stainless steel steel wire rope that diameter is not less than 1.8mm ".Traditional crude oil stock tank floating plate is anti-
Thunder, anti-static grounding mode generally use two 25mm2Soft copper answer twisted wire and pressed by tank wall top and be more than the high length of tank
It is connect with floating plate, when floating plate is increased with liquid level, soft copper is answered twisted wire and is scattered on floating plate, due to crude oil vapor sulfur-bearing and wind rain
Beating, which makes the soft copper answer twisted wire, easily corrodes, thus there are security risks.
Existing country's external floating top tank lightning current current divider is all made of plane scroll spring and is fixed on shell and shaft one end
On, the fixation of copper braid over braid is wrapped in the shaft other end, and the flexible elastic force by plane scroll spring of copper braid over braid controls.It is this
In actual use, when encountering strong wind weather, copper braid over braid is blown structure, causes frequently to stretch out and bounce back.Frequently stretch
Contracting vibration can cause the plane scroll spring in equipment elastic force fatigue occur even to be broken.Once the elastic force of plane scroll spring
Become smaller and be even broken, can cause braid over braid that cannot retract in equipment, be scattered on floating plate.
Invention content
Insufficient according to prior art, the present invention provides a kind of lightning current current divider and installation method with self-locking device,
To improve the service life of plane scroll spring.
The present invention is realized by following technical scheme：
A kind of lightning current current divider with self-locking device, including lightning current diverter mechanism, in the lightning current diverter mechanism
There are plane scroll spring and copper braid over braid, one end of plane scroll spring to be fixed on the shell of lightning current diversion structure, separately
One end is fixed on the main shaft being connected with reel；One end of copper braid over braid is fixed in the reel in lightning current diversion structure
On, the other end passes through the self-locking device being fixed on lightning current diversion structure, the self-locking device that can be in swing state
One reaction force of the copper braid over braid to be stretched down, reduces its stretching speed, and plane scroll spring is made to be in stable state.
Preferably, the self-locking device includes fixing sleeve, leading truck, upper nylon jacket, swing span, lower nylon jacket；It is described
Fixing sleeve is connected on the Wire bundling frame of lightning current diversion structure, and the leading truck is hinged with fixing sleeve, the upper nylon jacket peace
Dress is fixed on leading truck position of upper, and the swing span is located at leading truck lower part, and hinged with leading truck, the lower nylon jacket peace
Dress is fixed on the bottom of swing span.
Preferably, the self-locking device further includes centainly using angle for making fixed frame be in, it is ensured that uses process
The regulating device that middle copper braid over braid can normally stretch.
Preferably, the regulating device includes adjusting connecting rod, lantern ring and nut；Described one end for adjusting connecting rod and guiding
Frame is hinged, adjust connecting rod the other end be placed through the lantern ring on the Wire bundling frame of lightning current diversion structure after, pass through nut
Fastening is against on the Wire bundling frame of lightning current diversion structure, to fix leading truck.
Preferably, the swing span is flexibly connected by bolt with leading truck.
Preferably, the free end of the copper braid over braid is wrapped up by copper Wiring nose.
A kind of installation method of the lightning current current divider of aforementioned strip self-locking device, this method are：Lightning current diversion structure
Crude oil floating roof tank is fixed on stainless steel bolt to fill on wall, copper Wiring nose one end of copper braid over braid is fixed on original with stainless steel bolt
On the foam baffle of oily floating top pot floating dish, pass through copper braid over braid, lightning current diversion structure in this way between floating roof tank and tank skin
An electric path is formed, the electric current generated with conduction lightning stroke；Adjustment adjust connecting rod, make to lead determine frame be in centainly use angle,
Copper braid over braid can normally stretch during ensuring use, and when copper braid over braid is when flexible by outer force effect, leading truck is fixed,
Swing span is swung with copper braid over braid, and swing span top position negative direction compresses copper braid over braid at this time, gives one reaction force,
It reduces its stretching speed or even is locked, plane scroll spring is effectively made to be in stable state.
Advantageous effect of the present invention：
The present invention increases a self-locking device on the basis of original lightning current diversion structure, using the device with swing side
To copper braid over braid is compressed, one reaction force is given, its stretching speed is reduced or even is locked, what the frequent telescopic band of hedging came
To the nuisance vibration of plane scroll spring, plane scroll spring service life is improved.
Description of the drawings
Fig. 1 is a kind of front view of lightning current current divider with self-locking device of the present invention；
Fig. 2 is a kind of side view of the lightning current current divider with self-locking device shown in FIG. 1；
Fig. 3 is the self-locking device structural schematic diagram of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, by specific embodiment, the present invention is further illustrated.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of lightning current current divider with self-locking device, including lightning current diverter mechanism 1,
There are plane scroll spring 11 and copper braid over braid 8, one end of plane scroll spring 11 to be fixed on thunder and lightning in lightning current diverter mechanism 1
On the shell for flowing diversion structure 1, the other end is fixed on the main shaft being connected with reel；One end of copper braid over braid 8 is fixed on
On in reel in lightning current diversion structure 1, the other end passes through the self-locking device being fixed on lightning current diversion structure 1,
The self-locking device can be in 8 one reaction forces of copper braid over braid to be stretched under swing state, reduce its stretching speed, make
Plane scroll spring 11 is in stable state.
Preferable scheme is that：Self-locking device includes fixing sleeve 2, leading truck 3, upper nylon jacket 4, swing span 5, lower nylon jacket 6；
Fixing sleeve 2 is connected on the Wire bundling frame of lightning current diversion structure 1, and leading truck 3 is hinged with fixing sleeve 2, and the installation of upper nylon jacket 4 is solid
It is scheduled on 3 position of upper of leading truck, swing span 5 is located at 3 lower part of leading truck, and hinged with leading truck 3, and the lower installation of nylon jacket 6 is fixed
In the bottom of swing span 5.
Further embodiment is：Self-locking device further includes centainly using angle for making fixed frame 3 be in, it is ensured that was used
The regulating device that copper braid over braid 8 can normally stretch in journey.
Preferable scheme is that：Regulating device includes adjusting connecting rod 7, lantern ring 12 and nut 13；Adjust connecting rod 7 one end with lead
It is hinged to frame 3, adjust connecting rod 7 the other end be placed through the lantern ring 12 on the Wire bundling frame of lightning current diversion structure 1 after, pass through
The fastening of nut 13 is against on the Wire bundling frame of lightning current diversion structure 1, to fix leading truck 3.
Preferable scheme is that：Swing span 5 is realized and is led by the cooperation of screw rod and left fixing bolt 9 and right fixing bolt 10
It is flexibly connected to frame 3, and adjusts connecting rod 7 and be connected on the screw rod on right side.
When installing and using, lightning current diversion structure 1 is fixed on crude oil floating roof tank with stainless steel bolt and fills on wall, copper braiding
Be fixed on the foam baffle of crude oil floating top pot floating dish with stainless steel bolt with 8 copper Wiring nose one end, in this way in floating roof tank and
An electric path is formed by copper braid over braid 8, lightning current diversion structure 1 between tank skin, the electric current generated with conduction lightning stroke.
The present invention increases a self-locking device on the basis of original lightning current diversion structure, and when mounted, adjustment is adjusted
Section connecting rod 7 makes leading truck 3 use angle in certain, it is ensured that copper braid over braid 8 can normally stretch during use, when copper braid over braid
8 when flexible by outer force effect, and leading truck 3 is fixed, and swing span 5 is swung with copper braid over braid 8, at this time 5 top of swing span
Pressing plate negative direction compress copper braid over braid 8, give one reaction force, reduce its stretching speed or even locked, effectively
So that plane scroll spring 11 is in stable state, avoids stretching to flat because copper braid over braid 8 returns under the outer force effect such as strong wind
Face scroll spring 11 causes frequent vibration, to improve the service life of plane scroll spring 11.
Self-locking device in the present invention can be when copper braid over braid 8 be influenced to swing by wind or some external force, with pendulum
Dynamic direction compresses copper braid over braid 8, gives one reaction force, reduces its stretching speed or even is locked, will not be because of strong wind etc.
The interference of external force makes copper braid over braid 8 drive plane scroll spring frequent vibration, can improve the use of plane scroll spring 11
Service life.
It the above is only the preferred embodiment of the present invention, it should be pointed out that：Those skilled in the art are come
It says, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (7)
1. a kind of lightning current current divider with self-locking device, it is characterised in that：Including lightning current diverter mechanism（1）, the thunder
Current diverter mechanism（1）Inside there is plane scroll spring（11）With copper braid over braid（8）,
Plane scroll spring（11）One end be fixed on lightning current diversion structure（1）Shell on, the other end is fixed on and rolls up
On the main shaft that disk is connected；
Copper braid over braid（8）One end be fixed on lightning current diversion structure（1）On in interior reel, the other end passes through and is fixed on thunder
Current diverter structure（1）On self-locking device, the self-locking device can give be in the copper braid over braid to be stretched under swing state
（8）One reaction force, reduces its stretching speed, makes plane scroll spring（11）In stable state.
2. a kind of lightning current current divider with self-locking device according to claim 1, it is characterised in that：The self-locking device
Including fixing sleeve（2）, leading truck（3）, upper nylon jacket（4）, swing span（5）, lower nylon jacket（6）；
The fixing sleeve（2）It is connected to lightning current diversion structure（1）Wire bundling frame on, the leading truck（3）With fixing sleeve（2）
It is hinged, the upper nylon jacket（4）It is fixed on leading truck（3）Position of upper, the swing span（5）Positioned at leading truck（3）Under
Portion, and and leading truck（3）It is hinged, the lower nylon jacket（6）It is fixed on swing span（5）Bottom.
3. a kind of lightning current current divider with self-locking device according to claim 2, it is characterised in that：The self-locking device
Further include for making fixed frame（3）Angle is used in certain, it is ensured that copper braid over braid during use（8）The tune that can normally stretch
Regulating device.
4. a kind of lightning current current divider with self-locking device according to claim 3, it is characterised in that：The regulating device
Including adjusting connecting rod（7）, lantern ring（12）And nut（13）；
The adjusting connecting rod（7）One end and leading truck（3）It is hinged, adjust connecting rod（7）The other end be placed through thunder and lightning flow point
Flow device structure（1）Wire bundling frame on lantern ring（12）Afterwards, pass through nut（13）Fastening be against lightning current diversion structure（1）'s
On Wire bundling frame, thus by leading truck（3）It is fixed.
5. a kind of lightning current current divider with self-locking device according to claim 2, it is characterised in that：The swing span
（5）Pass through bolt and leading truck（3）Flexible connection.
6. a kind of lightning current current divider with self-locking device according to claim 1, it is characterised in that：The copper braid over braid
（8）Free end wrapped up by copper Wiring nose.
7. a kind of installation method based on any one of claim 1 to the 6 lightning current current divider with self-locking device, feature
It is：
Lightning current diversion structure（1）Crude oil floating roof tank is fixed on stainless steel bolt to fill on wall, copper braid over braid（8）Copper wiring
Nose one end is fixed on stainless steel bolt on the foam baffle of crude oil floating top pot floating dish, is passed through in this way between floating roof tank and tank skin
Copper braid over braid（8）, lightning current diversion structure（1）An electric path is formed, the electric current generated with conduction lightning stroke；
Adjustment adjusts connecting rod（7）, make to lead and determine frame（3）Angle is used in certain, it is ensured that copper braid over braid during use（8）It can be just
It is often flexible, when copper braid over braid（8）When flexible by outer force effect, leading truck（3）It is fixed, swing span（5）As copper weaves
Band（8）It swings, at this time swing span（5）Top position negative direction compresses copper braid over braid（8）, one reaction force is given, it is reduced
Stretching speed is even locked, and plane scroll spring is effectively made（11）In stable state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810327241.5A CN108557594B (en) | 2018-04-12 | 2018-04-12 | Lightning current diverter with self-locking device and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810327241.5A CN108557594B (en) | 2018-04-12 | 2018-04-12 | Lightning current diverter with self-locking device and installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108557594A true CN108557594A (en) | 2018-09-21 |
| CN108557594B CN108557594B (en) | 2024-03-08 |
Family
ID=63534884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810327241.5A Active CN108557594B (en) | 2018-04-12 | 2018-04-12 | Lightning current diverter with self-locking device and installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108557594B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084764A (en) * | 1976-04-28 | 1978-04-18 | Fa. J. N. Eberle & Cie. Gmbh | Device for winding up a belt or web |
| US4730783A (en) * | 1983-09-30 | 1988-03-15 | Spencer Products Company | Tape measure |
| CN2501213Y (en) * | 2001-08-29 | 2002-07-17 | 杨存璋 | Coiling box for telephone connecting line |
| JP2003225874A (en) * | 2002-02-05 | 2003-08-12 | Yoshikata Rokusha | Automatically rolling-in pushing device |
| JP2010240325A (en) * | 2009-04-10 | 2010-10-28 | Fujii Denko Co Ltd | Conductive type take-up utensil and conductive type safety belt equipped with the same |
| CN204167622U (en) * | 2014-08-29 | 2015-02-18 | 江苏德大自动化设备有限公司 | A kind of lightning protection, the dual-purpose earthing device of antistatic |
| CN208413525U (en) * | 2018-04-12 | 2019-01-22 | 江苏驭雷安全科技有限公司 | Lightning current current divider with self-locking device |
-
2018
- 2018-04-12 CN CN201810327241.5A patent/CN108557594B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084764A (en) * | 1976-04-28 | 1978-04-18 | Fa. J. N. Eberle & Cie. Gmbh | Device for winding up a belt or web |
| US4730783A (en) * | 1983-09-30 | 1988-03-15 | Spencer Products Company | Tape measure |
| CN2501213Y (en) * | 2001-08-29 | 2002-07-17 | 杨存璋 | Coiling box for telephone connecting line |
| JP2003225874A (en) * | 2002-02-05 | 2003-08-12 | Yoshikata Rokusha | Automatically rolling-in pushing device |
| JP2010240325A (en) * | 2009-04-10 | 2010-10-28 | Fujii Denko Co Ltd | Conductive type take-up utensil and conductive type safety belt equipped with the same |
| CN204167622U (en) * | 2014-08-29 | 2015-02-18 | 江苏德大自动化设备有限公司 | A kind of lightning protection, the dual-purpose earthing device of antistatic |
| CN208413525U (en) * | 2018-04-12 | 2019-01-22 | 江苏驭雷安全科技有限公司 | Lightning current current divider with self-locking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108557594B (en) | 2024-03-08 |
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