CN203826573U - Reusable earthing device - Google Patents
Reusable earthing device Download PDFInfo
- Publication number
- CN203826573U CN203826573U CN201420182066.2U CN201420182066U CN203826573U CN 203826573 U CN203826573 U CN 203826573U CN 201420182066 U CN201420182066 U CN 201420182066U CN 203826573 U CN203826573 U CN 203826573U
- Authority
- CN
- China
- Prior art keywords
- ground connection
- reusable
- stainless pipe
- earthing device
- earthing
- 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.)
- Expired - Fee Related
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Abstract
An objective of the utility model is to provide a reusable earthing device which is simple in structure and installation, and portable. The device comprises an earthing stainless steel circular pipe. The upper end and the lower end of the earthing stainless steel circular pipe are respectively provided with internal threads. The lower end is connected with a percussion bit by threads, and the upper end is connected with a terminal or a suspension ring by threads. The earthing device is made of a stainless steel circular pipe material, so cost is reduced, corrosion resistant effect is good, assembly is convenient and fast, and the device can be reused after being pulled out. Using a special impact electric hammer to cooperate with the device, labor intensity is greatly reduced, and installation efficiency is improved. The device solves defect that when an earthing device is driven into ground, a protection film is worn out by sandstone.
Description
Technical field
The utility model relates to electrical grounding resist technology field, relates to specifically a kind of reusable earthing device.
Background technology
Ground connection is divided into several conventional ground connection such as anti-static grounding, working earthing, DC earthing, lightning protection, power protection ground connection according to its application.Different ground connection requires also different to the resistance of ground resistance, the grounding resistance of direct lightning strike protection requires≤10 ohm, grounding requirement grounding resistance≤4 ohm of power protection ground connection, the protection of induction thunder, and the integrated ground resistance of building requires≤1 ohm.The way of ground connection simply says to be exactly in soil, to bury multiple earth electrodes underground, then these earth electrodes with Hot-dip zinc-coated flat steel sheet by being welded to connect, earth electrode divides two kinds of the horizontal grounding utmost point, vertical grounding electrodes substantially.The design of ground connection must be as requested ground resistance resistance, and the resistivity of on-site soil, calculates needed earth electrode quantity.
The general construction process of ground connection:
1) the horizontal grounding utmost point is generally earthing module, first underground at interval of 4 meters, dig and be not less than one meter of dark hole, the size in hole is determined according to the size of earth electrode, the quantity in hole is determined according to the definite earth electrode quantity of scheme, and the ditch that then digs same depth links up these holes.Then the horizontal grounding utmost point is positioned over to the end, hole, by welding, the horizontal grounding utmost point is coupled together with Hot-dip zinc-coated flat steel sheet, and above assigned address reserves binding post on ground.Conventionally also to wrap resistance reducing agent in Hot-dip zinc-coated flat steel sheet, earth electrode surrounding, in order to reduce resistance, to ensure earthing effect, the last backfill earthwork compacting.
2) it is several that vertical grounding electrode is generally hot galvanizing angle steel, hot galvanized steel pipe, copper covered steel earth rod, and its construction method is that vertical grounding electrode is vertically placed on to the end, hole, is driven underground with sledgehammer, and other is identical with the construction method of the horizontal grounding utmost point.According to construction experience all the year round, no matter be hot galvanizing earth electrode or copper covered steel earth electrode, in the process of being driven underground with sledgehammer, due to the friction of sandstone in soil, the diaphragm on earth electrode surface can be worn away, thereby loses the antisepsis of diaphragm.Backfill again after only digging dell earth electrode being put into, the effect of guarantee earth electrode diaphragm, but so just increased construction cost, lose the advantage that earth rod can be directly driven underground.
In the prior art, common engineering amount is not very large grounding construction, earth excavation, be backfilling and compacted, Grounding Grids is driven underground all by artificial, earth electrode is underground because need are embedded in for a long time, must weld, and certainly will cause like this that grounding construction efficiency is low, cost is high, and earth electrode is no matter be non-metal module, galvanized steel or copper material, must be disposable imbed underground.This is concerning the work of some civilian, military scientific research project and some temporary groundings, although ground connection is had relatively high expectations, because be often short several days, long one or two months will adjourn, this grounding construction method of continuing to use at present, just become very impracticable and need not.In addition, in the application for a patent for invention that is 201110385244.2 at application number, a kind of modular electrical earth rod that adopts percussion tool to bury underground is disclosed, although the technical scheme described in it buries for installation certain effect of having played underground, but be barred body structure due to what adopt, all there is the defect of complicated trouble in transport and installation process, and is also to adopt disposable installation.
Utility model content
The purpose of this utility model be to provide a kind of simple in structure, light, simple and direct reusable earthing device is installed.
In order to achieve the above object, the technical solution adopted in the utility model is: the utility model comprises ground connection stainless pipe, the two ends up and down of described ground connection stainless pipe are respectively equipped with internal thread, its lower end drill hammer that has been threaded, its upper end be threaded binding post or suspension ring.
When can meeting ground connection, squeezes into described ground connection stainless pipe the required intensity in ground, and can ensure that resistance value reaches standard-required, while needing whole device to take out after finishing using, binding post is unloaded, suspension ring are tightened on to the upper end of stainless pipe, adopt the method for hoist that whole device is taken out.
Described ground connection stainless pipe subsection setup adopts double end connecting bolt to connect between every section.In specific implementation process, can, according to different resistance value requirements, the segmentation of ground connection stainless pipe be lengthened.
The subsection setup of described ground connection stainless pipe is at least one section.Ground connection stainless pipe when one section reach resistance and require after, just can no longer connect ground connection stainless pipe, can be with two sections of double end connecting bolt connections or the ground connection stainless pipe of multistage more in the time not reaching resistance.
Described binding post is provided with connection bolt, and one end of connection bolt is arranged with truncated cone-shaped wiring securing member.Connecting bolt is through after through hole, and wiring securing member is enclosed within on connecting bolt, after wire is installed on wiring securing member, wiring securing member is fastened on splicing ear with nut.
The overall diameter of described drill hammer, ground connection stainless pipe and double end connecting bolt is all identical.The identical whole earthing device resistance minimum in the process of squeezing into ground that ensured of overall diameter, is easier to construction.
The junction of described drill hammer, ground connection stainless pipe and double end connecting bolt is equipped with spanner groove.The setting of spanner groove can so that the connection between each assembly, meanwhile, because the bonding strength between each assembly is not large especially, can not arrange spanner groove and directly adopt pipeline connecting clamp to connect.
The section length of described ground connection stainless pipe adopts 1m or 1.5m.
Described binding post is provided with connection electric wire, and it adopts tin-coated copper braid over braid electric wire.At the two ends that connect electric wire, the power lug being used in conjunction with connection bolt is set respectively.
In installation process, what prior art was general is adopts and impacts electric hammer, can make like this ground connection stainless pipe end being impacted by blastic deformation, being connected of impact and binding post or suspension ring; Another erection unit is exactly the special electric hammer of applicant's custom-designed earth electrode of institute, comprise tup and hammer body, its tup is through transformation, its tup part is provided with the male connection being used in conjunction with ground connection stainless pipe, in use ground connection stainless pipe is threaded on the tup of special electric hammer, whole device, perpendicular to ground, is connected to special electric hammer power supply, whole ground connection stainless pipe is impacted and enters ground.This Special hammer has been obtained extraordinary practical effect in actual production, is used in conjunction with and more can improves installation effectiveness with the utility model, reduces production costs.
The obtained beneficial effect of the utility model is:
One, adopt stainless pipe material to make, reduce costs, anti-corrosion effects is good, easy to assembly quick, and can pull out
After going out, reuse;
Two, adopt special impact electric hammer and the utility model to be used in conjunction with, greatly reduced labour intensity, improved installation effectiveness;
Three, solved earthing device in the time squeezing into ground, the defect that diaphragm is ground away by sandstone.
Brief description of the drawings
Fig. 1 the utility model structural representation;
Fig. 2 the utility model suspension ring structural representation.
In figure: 1 drill hammer; 2 ground connection stainless pipes; 3 double end connecting bolts; 4 binding posts; 5 connection bolts; 6 wiring securing members; 7 suspension ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
The utility model comprises ground connection stainless pipe 2, and the two ends up and down of described ground connection stainless pipe 2 are respectively equipped with internal thread, its lower end drill hammer 1 that has been threaded, its upper end be threaded binding post 4 or suspension ring 7.
Described ground connection stainless pipe 2 subsection setups adopt double end connecting bolt 3 to connect between every section.
The subsection setup of described ground connection stainless pipe 2 is at least one section.
Described binding post 4 is provided with connection bolt 5, and one end of connection bolt 5 is arranged with truncated cone-shaped wiring securing member 6.
The overall diameter of described drill hammer 1, ground connection stainless pipe 2 and double end connecting bolt 3 is all identical.
The junction of described drill hammer 1, ground connection stainless pipe 2 and double end connecting bolt 3 is equipped with spanner groove.
The section length of described ground connection stainless pipe 2 adopts 1m or 1.5m.
Described binding post 4 is provided with connection electric wire, and it adopts tin-coated copper braid over braid electric wire.
In Specific construction process:
One, do not need under buried condition of construction at earth connection:
The first step, is threaded drill hammer 1 with ground connection stainless pipe 2;
Second step, is connected to ground connection stainless pipe 2 on the nipple of tup of special electric hammer;
The 3rd step, is vertically placed on whole device on ground to be squeezed into, and operating personnel buttress special electric hammer gently, starts power supply, and whole device enters the operating state of squeezing into ground;
The 4th step, in the time that ground connection stainless pipe 2 submerges ground soon, test resistance with resistance measuring instrument, whether reach requirement, if reach requirement, special electric hammer is unloaded, install binding post 4, connection electric wire one end is linked on binding post 4, and the other end is connected on equipment, and whole earthing device completes installation; If do not reach requirement, connect again one section of ground connection stainless pipe 2 at ground connection stainless pipe 2 by double end connecting bolt 3, repeat the first to the 3rd step, continue to squeeze into ground; When resistance is excessive can not continue to go deep into time and when resistance value does not reach requirement, now, beyond the 4m squeezing into a little, find again one and squeeze into a little, continue to repeat the first to the 3rd step, after completing, with connecting electric wire, two binding posts 4 of squeezing into are a little connected, whether test meets the requirements, by that analogy.
The 5th step, after whole earthing device is finished using, binding post 4 is unloaded, change suspension ring, drill hammer 1 adopts the mode of hoist, whole earthing device extracted, except in use may have a little damage, miscellaneous part is all reusable, and drill hammer 1 can carry out angle grinding machine reparation and reuse.
Two, need under buried condition of construction at earth connection:
Excavated the ditch that 0.5m is dark, now, adopted the step as the first situation, in qualified backfill soil later, the utility model installs.
Claims (8)
1. a reusable earthing device, comprise ground connection stainless pipe (2), it is characterized in that: the two ends up and down of described ground connection stainless pipe (2) are respectively equipped with internal thread, its lower end drill hammer (1) that has been threaded, its upper end be threaded binding post (4) or suspension ring (7).
2. reusable earthing device according to claim 1, is characterized in that: described ground connection stainless pipe (2) subsection setup adopts double end connecting bolt (3) to connect between every section.
3. reusable earthing device according to claim 2, is characterized in that: the subsection setup of described ground connection stainless pipe (2) is at least one section.
4. reusable earthing device according to claim 1, is characterized in that: described binding post (4) is provided with connection bolt (5), and one end of connection bolt (5) is arranged with truncated cone-shaped wiring securing member (6).
5. reusable earthing device according to claim 1, is characterized in that: the overall diameter of described drill hammer (1), ground connection stainless pipe (2) and double end connecting bolt (3) is all identical.
6. reusable earthing device according to claim 1 or 5, is characterized in that: the junction of described drill hammer (1), ground connection stainless pipe (2) and double end connecting bolt (3) is equipped with spanner groove.
7. according to the reusable earthing device described in claim 2 or 3, it is characterized in that: the section length of described ground connection stainless pipe (2) adopts 1m or 1.5m.
8. reusable earthing device according to claim 1, is characterized in that: described binding post (4) is provided with connection electric wire, and it adopts tin-coated copper braid over braid electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182066.2U CN203826573U (en) | 2014-04-15 | 2014-04-15 | Reusable earthing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420182066.2U CN203826573U (en) | 2014-04-15 | 2014-04-15 | Reusable earthing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826573U true CN203826573U (en) | 2014-09-10 |
Family
ID=51482040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420182066.2U Expired - Fee Related CN203826573U (en) | 2014-04-15 | 2014-04-15 | Reusable earthing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340734A (en) * | 2016-11-15 | 2017-01-18 | 国网浙江省电力公司检修分公司 | Ground rod and grounding device |
-
2014
- 2014-04-15 CN CN201420182066.2U patent/CN203826573U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340734A (en) * | 2016-11-15 | 2017-01-18 | 国网浙江省电力公司检修分公司 | Ground rod and grounding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20160415 |