CN207116724U - A kind of electric device grounding system in concrete foundation - Google Patents
A kind of electric device grounding system in concrete foundation Download PDFInfo
- Publication number
- CN207116724U CN207116724U CN201720943733.8U CN201720943733U CN207116724U CN 207116724 U CN207116724 U CN 207116724U CN 201720943733 U CN201720943733 U CN 201720943733U CN 207116724 U CN207116724 U CN 207116724U
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- copper
- connection part
- buried
- copper billet
- clamping connection
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Abstract
It the utility model is related to a kind of electric device grounding system in concrete foundation, including the ground connection ejectment being sequentially connected, pre-buried copper billet, draw lower copper bar and grounded screen, it is described also to include fixed support, the pre-buried copper billet is arranged on fixed support, the lower section of the pre-buried copper billet is provided with copper rod, it is described to draw lower copper bar and be connected by copper rod with pre-buried copper billet, the fixed support includes clamping connection part, vertical support pin and bearing diagonal pin, the bottom of the clamping connection part is provided with through hole, the pre-buried copper billet is fixed on clamping connection part, the copper rod passes through through hole, the vertical support pin and clamping connection part vertical connection, the bearing diagonal pin is connected with four end points of clamping connection part.Compared with prior art, the utility model has the advantages that being less prone to displacement, registration and construction links up.
Description
Technical field
A kind of equipment ground device is the utility model is related to, more particularly, to a kind of electric in concrete foundation
Equipment ground system.
Background technology
Electrical equipment multipoint earthing in concrete foundation is typically using the extraction copper bar mode directly out of basis.
Pre-buried copper bar exposes basis, after equipment installation again clod wash to body earthing member.Using pre-buried copper bar mode, deposit both ways
Common quality defect：
1st, ground outlet and equipment ground part are easily eccentric
Copper bar is drawn spot placement accuracy and is difficult to control, and manufacture processing, alignment error in place accumulation, easily causes ground outlet
It is eccentric with equipment ground part, influence attractive in appearance, part lead bias is excessive, it has to digs ground, causes to do over again.
2nd, root is easy to crack
Copper bar lead-out wire goes out root stress at ground in ground clod wash, easily causes root concrete cracking.As copper bar reveals
Head directly overlaps, then horizontal lead wire copper bar does not paste ground, unsightly, is easily tripped during operation maintenance.
Installation out of doors electrical equipment grounding copper billet system design in volume of concrete foundation using ground connection ejectment with
Concrete foundation is grounded pre-buried copper piece bolt docking form.The pre-buried copper piece of foundation grounding is connected by drawing lower copper bar with grounded screen,
Welded using heat release at both ends.
Patent CN201320403486 proposes a kind of 1000kVGIS equipment grounds design and uses equipment ground ejectment and base
Plinth is grounded pre-buried copper piece bolt docking form.Foundation grounding built-in fitting is connected by copper stranded conductor with auxiliary earth mat, and both ends use
Heat release is welded.Ejectment is connected with pre-buried copper coin using bolt tapping.But there is problems with the technique：
1st, the folder of pre-buried copper piece is by steel pipe support, is single-point support, and in concreting process, overall folder easily goes out
Situation about now shifting.
2nd, it is easy to slip teeth after ground connection copper billet tapping, cause ejectment bolt connection unreliable.
3rd, pre-buried copper billet be accurately positioned it is rear is only fixed by four bolts on folder top, during concreting, hold
Easily influenceed to cause copper billet positioning deviation occur by external force.
4th, concrete foundation points three layers pours, and is grounded auxiliary net and from the second layer leads to third layer and appear and is connected with pre-buried copper piece,
Whole work progress is discontinuous, time-consuming longer, and inapplicable outdoor two layers of concrete large slab construction technology poured.
Utility model content
The purpose of this utility model is to provide a kind of electrical equipment in concrete foundation regarding to the issue above to connect
Ground system.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of electric device grounding system in the concrete foundation, including the ground connection ejectment, pre-buried being sequentially connected
Copper billet, draw lower copper bar and grounded screen, described also to include fixed support, the pre-buried copper billet is arranged on fixed support, described pre-
The lower section for burying copper billet is provided with copper rod, and described to draw lower copper bar and be connected by copper rod with pre-buried copper billet, the fixed support includes clamping connection
Part, vertical support pin and bearing diagonal pin, the bottom of the clamping connection part are provided with through hole, and the pre-buried copper billet is fixed on clamping connection part,
The copper rod passes through through hole, the vertical support pin and clamping connection part vertical connection, four ends of the bearing diagonal pin and clamping connection part
Point connection.
The clamping connection part includes channel-section steel clamping connection part, and the channel-section steel clamping connection part both sides, which are provided with, is used for nut, leads in the nut
Screw rod is crossed, pre-buried copper billet is realized and fixed.
The vertical support pin is black angle bar support feet, and the bearing diagonal pin is reinforcement bar support spike, the black angle bar support
Pin and reinforcement bar support spike are fixed on ground by expansion bolt, and are connected by being welded with clamping connection part.
The pre-buried copper billet not perforate when pre-buried, after electrical equipment installation positioning, according to electrical equipment grounding part position
Put the self tapping perforate connection ground connection ejectment on pre-buried copper billet.
Stainless steel swivel nut is provided with the perforate of the pre-buried copper billet, the stainless steel swivel nut is connected with ground connection ejectment.
The copper rod passes through L-type heat release weldering connection with drawing lower copper bar.
Be additionally provided with local fixing on the fixed support, the local fixing respectively with clamping connection part and pre-buried copper
Block connects.
Compared with prior art, the utility model has the advantages that：
(1) the utility model proposes electric device grounding system, pre-buried copper billet be by clamping connection part, vertical support pin and
Bearing diagonal pin is supported jointly, is only compared compared with original by way of steel pipe carries out single-point support, this support is more
It is firm, situations such as being less prone to displacement in the casting process of concrete, stability is good.
(2) vertical support pin uses black angle bar support feet, and supporting way consolidates, and load-bearing property is good, and bearing diagonal pin is then adopted
With reinforcement bar support spike, ductility is good and ensure that support performance, and the two is fixed on ground by expansion bolt and passes through electricity
Weldering is connected with clamping connection part, and integrated connection mode consolidates, phenomena such as being not susceptible to loosen.
(3) stainless steel swivel nut is provided with the perforate of pre-buried copper billet, is not susceptible to slide tooth after tapping, therefore with being grounded ejectment
Connection it is reliable, stability is good.
(4) copper rod passes through L-type radiation weldering connection with drawing lower copper bar, it can be ensured that overall faying surface meets the ground connection load designed
Traffic requirement.
(5) local fixing is additionally provided with fixed support, further ensures the reliable fixation of pre-buried copper billet.
(6) grounded screen is arranged in same layer concrete lift and completes all apply by the utility model with earthed system
Work process, changes original system and need to will be grounded auxiliary net and led to from the second layer after third layer appears, then be connected with pre-buried copper piece
Mounting means；It is applicable to construction operation in two layers of outdoor volume of concrete foundation poured, and can effectively shorten
Whole construction period.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the connection diagram of pre-buried copper billet and clamping connection part；
Wherein, 1 is pre-buried copper billet, and 2 be copper rod, and 3 is draw lower copper bar, and 4 be clamping connection part, and 5 be vertical support pin, and 6 be tiltedly branch
Spike, 7 be local fixing.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
A kind of electric device grounding system in concrete foundation that the present embodiment provides, including be sequentially connected
Equipment ground ejectment, integral built-in copper billet 1 (including copper rod 2), draw lower copper bar 3 and the auxiliary net of ground connection, in addition to fixed support.It is pre-buried
The generally shaped body of copper billet 1, copper rod and pre-buried 1 integrated casting of copper billet, pre-buried copper billet 1 are fixed on ground by the fixed support
Face, draw lower copper bar 3 and connected by heat release weldering and copper rod 2 and the auxiliary net of ground connection.
Wherein, fixed support includes clamping connection part 4, local fixing 7, vertical support pin 5 and bearing diagonal pin 6, vertical branch
The both ends of spike 5 and bearing diagonal pin 6 are connected by being welded with the setscrew and clamping connection part 4 for being fixed on ground respectively, clamping connection part 4
Pre-buried copper billet 1 is fixed by screw rod and local fixing 7.Vertical support pin 5 is black angle bar, and bearing diagonal pin 6 is steel
Muscle.As shown in Fig. 2 clamping connection part 4 is channel-section steel, channel-section steel both sides are fixed with the nut for clamping pre-buried copper billet 1, and screw rod passes through the spiral shell
Cap fixes pre-buried copper billet 1.There is gap in pre-buried copper billet, can be highly micro- by moving up and down copper billet progress copper billet with channel-section steel bottom
Adjust, compensate frame bottom foundation elevation error.Draw lower copper bar 3 and carry out the horizontal welding of L-type with copper rod 2, to ensure overall faying surface
Meet the ground connection current-carrying capacity requirement of design.Not perforate when pre-buried copper billet 1 is pre-buried, after equipment installation positioning, according to equipment ground
The self tapping perforate on pre-buried copper billet of part position connects ejectment.Pre-buried copper billet 1 is connected by stainless steel swivel nut with ground connection ejectment.It is stainless
Steel swivel nut is a kind of spiral winding of the cold rolling rhombus stainless steel wire Accurate Shaping of any surface finish, is the concentric body of internal and external screw thread, dress
High intensity, wear-resistant, high temperature resistant are formed after good, antidetonation, shock resistance, corrosion resistance, meets spiral shell in the high accuracy of international standard
Line.
Pouring for system is carried out according to said structure, in the present embodiment in the casting process of system, overall flow is with needing
It is noted that main points it is as follows, first be grounded copper billet pass through overall foundry casting, it is desirable to the Vehicle Processing of copper billet upper surface is smooth, and does
The tin plating work on good surface, it is ensured that draw lower copper bar with equipment and contact reliably；The copper bar of copper billet portion integralization processing 70cm length, cuts
Area need to require to formulate according to design drawing, the copper billet configuration φ 32 at Changji station scene 150 copper bar, 100 copper billet configuration φ 18
Copper bar, copper bar bottom needs Vehicle Processing smooth, it is ensured that during copper bar heat release weldering be connected with auxiliary earth mat, mould clamping connection is close.Connect
Ground copper billet requires the defects of pore-free, crackle, corner breakage after processing；Copper billet helps junction to apply bitumastic solution with copper.Material arrives
Earthing member overall appearance inspection should be carried out after.Grounding copper block size trueness error is controlled in 0~2mm scopes by design requirement
Interior, the copper rod of copper billet bottom requires that diameter have to be larger than φ 32 and φ 18, and workpiece size is verified before in-site installation.Do
Good arrival ground connection copper billet dispatches from the factory the examination of data, it is ensured that is grounded the crudy of copper billet.Entered during practice of construction using red copper
Row casting.
When fixed support is processed, suitable channel-section steel folder is selected to be processed according to copper billet size, each channel-section steel folder
Part each side has 2 M10 nuts, and nut is welded on channel-section steel, is drilled at channel-section steel weldering nut, for wearing M10X40 spiral shell
Silk, φ 50 hole is opened at channel-section steel center, and after copper rod passes through hole, overall fixed, channel-section steel bottom welding 2 is carried out to ground connection copper billet by screw
Root 40*4 angle bar, it is easy to follow-up overall fixed and regulation.
It is to ground connection copper billet and the positioning of channel-section steel fixed clip, installation, adjustment, first according to design drawing to grounding copper afterwards
Block position snap the line positioning, it is determined that opening position beats expansion bolt, first by the spike of channel-section steel fixed clip and anchor point expansion bolt
Spot welding is carried out, then, further according to axis and absolute altitude accurate location, channel-section steel folder is integrally adjusted with horizon rule using level meter
It is whole, after being adjusted in place, full weld is carried out to spike, in addition, in order to ensure channel-section steel fixed clip is in concrete casting, position does not occur
Move, influence to position, 4 diagonal braces need to be done to the channel-section steel folder installed using 40*4 angle bar and fixed.Ground connection copper billet is installed in groove
After on steel clamp part, to copper rod and draw lower copper bar (80*10 or 50*4), and copper bar (80*10 or 50*4) and auxiliary earth mat (TJ-150
Copper stranded conductor) heat release weldering is carried out respectively, heat release postwelding is completed, brushing bitumastic solution is needed, does preservative treatment.Adjust plane absolute altitude on copper billet
Consistent (+0.002m) with the secondary face absolute altitude that pours of the big plates of GIS, copper billet is horizontal and absolute altitude is positioned after the completion of adjusting, and tightens clamping connection spiral shell
Bolt.At copper side and copper bar heat release weldering and channel-section steel folder screw is fixed at copper billet and does local fixation using reinforcing bar, avoids concrete
When pouring, ground connection copper billet shifts, and influences pre-buried effect.Ground connection copper billet surrounding pastes the flexible rubber of black, prevents concrete
After pouring, the concrete around copper billet cracks, copper block surface pastes U.S. line paper, prevents coagulation because expanding with heat and contract with cold
Pollution ground connection copper block surface when soil pours, influences to overlap reliability.Send someone to check again before casting concrete, tighten up fixed support
Bolt.Special messenger guards when pouring, and avoids concrete shock club from touching ground connection copper billet and channel-section steel fixed support, causes earthing member to move
It is dynamic, influence positioning accuracy.
After the installation in place of 750kV GIS devices, ground connection ejectment is drawn and is connected to ground connection and buries on copper, further according to ground connection ejectment
The position of screw, the positioning screw hole position on copper is buried, ground connection copper billet is drilled using power drill.After the completion of drilling, with silk
Coning row tapping, screw tap coordinate Special tapping tool to use.During tapping, uniformly to exert oneself, along rotating repeatedly counterclockwise, avoid silk
It is excessive to bore stress, causes to be broken.When installing stainless steel recoil inserts, recoil inserts should rub lubricating oil, be easily installed.Connection connects
Ground ejectment, is fastened to bolt, then is tightened up with torque spanner, meets regulation moment values.
Claims (7)
1. a kind of electric device grounding system in the concrete foundation, including be sequentially connected ground connection ejectment, pre-buried copper
Block, draw lower copper bar and grounded screen, it is characterised in that be also arranged on including fixed support, the pre-buried copper billet on fixed support, institute
The lower section for stating pre-buried copper billet is provided with copper rod, and described to draw lower copper bar and be connected by copper rod with pre-buried copper billet, the fixed support includes
Clamping connection part, vertical support pin and bearing diagonal pin, the bottom of the clamping connection part are provided with through hole, and the pre-buried copper billet is fixed on clamping connection part
On, the copper rod is by through hole, the vertical support pin and clamping connection part vertical connection, four of the bearing diagonal pin and clamping connection part
End points connects.
2. the electric device grounding system according to claim 1 in concrete foundation, it is characterised in that described
Clamping connection part includes channel-section steel clamping connection part, and the channel-section steel clamping connection part both sides, which are provided with, is used for nut, by screw rod in the nut, to pre-buried
Copper billet, which is realized, to be fixed.
3. the electric device grounding system according to claim 1 in concrete foundation, it is characterised in that described
Vertical support pin is black angle bar support feet, and the bearing diagonal pin is reinforcement bar support spike, the black angle bar support feet and reinforced bar support
Pin is fixed on ground by expansion bolt, and is connected by being welded with clamping connection part.
4. the electric device grounding system according to claim 1 in concrete foundation, it is characterised in that described
Pre-buried copper billet not perforate when pre-buried, after electrical equipment installation positioning, according to electrical equipment grounding part position in pre-buried copper billet
Upper self tapping perforate connection ground connection ejectment.
5. the electric device grounding system according to claim 4 in concrete foundation, it is characterised in that described
Stainless steel swivel nut is provided with the perforate of pre-buried copper billet, the stainless steel swivel nut is connected with ground connection ejectment.
6. the electric device grounding system according to claim 1 in concrete foundation, it is characterised in that described
Copper rod passes through L-type heat release weldering connection with drawing lower copper bar.
7. the electric device grounding system according to claim 1 in concrete foundation, it is characterised in that described
Local fixing is additionally provided with fixed support, the local fixing is connected with clamping connection part and pre-buried copper billet respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720943733.8U CN207116724U (en) | 2017-07-31 | 2017-07-31 | A kind of electric device grounding system in concrete foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720943733.8U CN207116724U (en) | 2017-07-31 | 2017-07-31 | A kind of electric device grounding system in concrete foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207116724U true CN207116724U (en) | 2018-03-16 |
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ID=61572307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720943733.8U Expired - Fee Related CN207116724U (en) | 2017-07-31 | 2017-07-31 | A kind of electric device grounding system in concrete foundation |
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| Country | Link |
|---|---|
| CN (1) | CN207116724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041908A (en) * | 2019-12-18 | 2020-04-21 | 周江 | Track stray current grounding terminal positioning device and application thereof |
-
2017
- 2017-07-31 CN CN201720943733.8U patent/CN207116724U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041908A (en) * | 2019-12-18 | 2020-04-21 | 周江 | Track stray current grounding terminal positioning device and application thereof |
| CN111041908B (en) * | 2019-12-18 | 2021-11-16 | 周江 | Track stray current grounding terminal positioning device and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20200731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |