CN202503117U - Grounding body - Google Patents
Grounding body Download PDFInfo
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- CN202503117U CN202503117U CN201220098959XU CN201220098959U CN202503117U CN 202503117 U CN202503117 U CN 202503117U CN 201220098959X U CN201220098959X U CN 201220098959XU CN 201220098959 U CN201220098959 U CN 201220098959U CN 202503117 U CN202503117 U CN 202503117U
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- main body
- pipe
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- grounding
- pole
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Abstract
The utility model discloses a grounding body which comprises a grounding main body and a wire connecting terminal. The grounding main body comprises an upper main body, a middle main body, a lower main body, a center circular rod, and a plurality of circular pipes. The center circular rod is vertically inserted into a main body axial inner hole. The central section of the center circular rod is provided with a liquid feeding blind hole. A plurality of liquid outlet holes are provided uniformly on a lower end conical surface of the center circular rod. The liquid feeding blind hole is respectively communicated with the plurality of liquid outlet holes. The plurality of circular pipes are respectively inserted into radial positioning holes. One end of each of the circular pipes is inserted into the middle main body inner hole. A wedge-form surface of one end tip of each of the circular pipes abuts against the lower end conical surface of the center circular rod. After the grounding main body is pre-buried, each circular pipe is respectively inserted into the soil surrounding the grounding main body, and the liquid outlet holes at the lower end of the center circular rod are respectively communicated with the circular pipe inner holes in corresponding positions. The grounding body has high strength, a small grounding resistance, and good corrosion resistance and conductive effect, a sodium chloride resistance reduction liquid can be regularly added, the use cost is low, and the soil excavation amount is small.
Description
Technical field
The utility model relates to a kind of earthing device of low voltage power distribution network; Especially a kind of low-voltage alternating-current neutral ground point that is widely used in; Equipment ground in protection connecting to neutral iterative earthing and the isolated neutral system belongs to the electric power safety equipment technical field.
Background technology
Earth electrode is the earthing device of a kind of landfill in soil, plays power failure electric current, lightning current, static etc. are effectively imported the earth, reduces the effect of step voltage, with normal operation of assurance equipment and personal safety.Earth electrode generally adopts steel wire to make, because the steel wire self-resistance is bigger, surface area per unit length is less; Therefore buried part must have enough length, could reduce its resistance value, strengthens conductivity; Cause a large amount of excavation of needs soil, increased difficulty of construction.At present; The earth electrode that the lightning arrester of power industry transformer, building etc. is used; The modes that adopt band iron welding angle steel more, band iron and angle steel easy-to-rust, corrosion thing are peeled off the back and are formed air insulation; Reduced conductive effect, thereby people, transformer and building protective facility have been lost defencive function.
The patent No. is that 201020130370.4 Chinese utility model patent discloses a kind of earth electrode; This earth electrode is made up of earth electrode main body, earth terminal; The earth electrode main body is made up of for three sections upper, middle and lower; Can reduce earth resistance through the length of regulating mid portion, but can increase the soil excavated volume like this, cause certain difficulty to construction.
The patent No. is that 201020625497.3 Chinese utility model patent discloses a kind of earth electrode, and this earth electrode is provided with graphite electrode below band iron, and the band iron under ground portion is provided with graphite electrode and contact near the graphite electrode place; Resistant to rust function and conductive effect have been improved; Improved defencive function, but graphite electrode intensity is low, damages easily when being driven underground to people, transformer and building protective facility; In addition; The band iron lower end adopts conducting resinl to be connected with the graphite electrode square groove in this patent, because the oxidation corrosion phenomenon appears in the bonding interface of conducting resinl and metal layer easily, has potential safety hazard.
Summary of the invention
The purpose of the utility model provide a kind of simple in structure, intensity is high, corrosion-resistant, the soil excavated volume is little and can effectively reduce the earth electrode of grounding resistance.
The utility model is achieved through following technical scheme:
A kind of earth electrode comprises the ground connection main body, is fixed on the binding post of ground connection main body upper end, and said ground connection main body comprises main body, intermediate host, time main body, center pole and Duo Gen pipe; Said main body, intermediate host and the following main body of going up is fixedly connected sequentially; Following main body lower end is conical, and said center pole inserts the main body axial bore, and center pole axial centre is provided with the liquid feeding blind hole; It is conical that pole lower end, center is; Evenly be provided with a plurality of fluid holes that connect with the liquid feeding blind hole on the taper seat of pole lower end, center, evenly be provided with a plurality of radial location holes corresponding with the fluid hole position on the said intermediate host outer peripheral face, many pipes insert each radial location hole respectively; Pipe one end puts in the main body axial bore, and the lozenges of pipe one end termination is resisted against on the taper seat of pole lower end, center; After the ground connection main body was pre-buried, pipe other end termination put in respectively in the ground connection main body surrounding soil, and a plurality of fluid holes of pole lower end, center are communicated with relevant position pipe endoporus respectively.
The purpose of the utility model can also further realize through following technical measures.
Aforesaid earth electrode, pole liquid feeding blind hole top, wherein said center is provided with the blind hole end cap, pipe other end termination is provided with the pipe end cap, and said pipe end cap is provided with a plurality of axial dispersions hole.Said pipe axially spaced-apart is provided with several radial direction through hole.
Aforesaid earth electrode, wherein said main body, intermediate host and the following main body of going up all adopts the hot galvanizing steel to process.
The utility model can regularly add sodium chloride and fall blocking solution, and simple in structure, cost is low, good reproducibility, and the soil excavated volume is little, and the ground connection main body adopts the hot galvanizing steel to process good corrosion resistance.Compared with prior art; The utility model adopts earth electrode circumferentially to be uniformly distributed with the circular tube structure that an end is a lozenges; And in each pipe endoporus, load sodium chloride and fall blocking solution; When the center pole was laid, under the squeezing action of pole lower end, center taper seat to the lozenges of pipe one end, each pipe other end outwards put in respectively in the ground connection main body surrounding soil; Increased the contact-making surface of ground connection main body and surrounding soil, this moment, pole lower end, center fluid hole was communicated with the axial solution channel of relevant position pipe respectively.Sodium chloride is fallen in the liquid feeding blind hole of blocking solution input center pole; Sodium chloride falls blocking solution and flows in the axial solution channel of each pipe along liquid feeding blind hole, fluid hole respectively; A plurality of permeability holes and radial direction through hole through the pipe end cap is penetrated in the surrounding soil at last, reduced the resistivity of earth electrode surrounding soil, so the grounding resistance of the utility model is very little; The performance of dredging to electric current is greatly improved, and can bear the impact of big thunder-strike current or short circuit current.
Advantage of the utility model and characteristics will illustrate through the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide with reference to accompanying drawing as an example.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the I portion enlarged drawing of Fig. 1;
Fig. 3 is the structural representation of the utility model after pre-buried.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Like Fig. 1～shown in Figure 3, the binding post 2 that the utility model comprises ground connection main body 1, is arranged on ground connection main body 1 upper end and intersects vertically with ground connection main body 1, binding post 2 one ends are with 1 welding of ground connection main body or be threaded; The diameter range of ground connection main body 1 is 40mm～60mm; Altitude range is 800mm～1000mm, and ground connection main body 1 comprises main body 11, intermediate host 12, main body 13, center pole 14 and Duo Gen pipe 15 down, and last main body 11, intermediate host 12 are fixedly connected through screw thread with following main body 13 successively; The three all adopts the hot galvanizing steel to process; Improved the decay resistance of ground connection main body 1, following main body 13 lower ends are conical, are convenient to insert in the soil.Center pole 14 inserts in the main body axial bore 111; Pole 14 axial centre in center are provided with liquid feeding blind hole 141; Evenly be provided with a plurality of fluid holes 142 that connect with liquid feeding blind hole 141 on the center pole 14 lower end taper seats; Evenly be provided with a plurality of radial location holes 121 corresponding on intermediate host 12 outer peripheral faces with fluid hole 142 positions; Many pipes 15 insert each radial location hole 121 respectively, and pipe 15 1 ends put in the main body axial bore 111, and the lozenges of pipe 15 1 end terminations is resisted against on the center pole 14 lower end taper seats.After the ground connection main body was pre-buried, pipe 15 other end terminations put in respectively in the ground connection main body surrounding soil, and a plurality of fluid holes 142 of center pole 14 lower ends are communicated with relevant position pipe endoporus 151 respectively.Liquid feeding blind hole 141 tops of center pole 14 are provided with blind hole end cap 3, pipe 15 other end terminations are provided with pipe end cap 4; Said pipe end cap 4 is provided with a plurality of axial dispersions hole 41; Being convenient to sodium chloride falls blocking solution and is penetrated in the soil; Pipe 15 axially spaced-aparts are provided with 3 radial direction through hole 152, can make sodium chloride fall blocking solution and permeate more fully.
During use, earlier pipe 15 is inserted respectively in each the radial location hole 121 on intermediate host 12 cylindricals, will go up main body 11, intermediate host 12 again, main body 13 screws successively and links into an integrated entity down; Then with center pole 14 vertical insertions in the main body axial bore 111; Both are fitted, and digging out a diameter in the place that needs are provided with earth electrode is that 500mm, the degree of depth are the heatable adobe sleeping platform of 1500mm, vertically puts the utility model into heatable adobe sleeping platform; With rammed earth and be filled to about binding post 2 lower end 10mm and locate; Then center pole 14 is laid, under the squeezing action of pole 14 lower end taper seats in center to the lozenges of pipe 15, each pipe 15 is outwards got into ground connection main body 1 surrounding soil from middle main body 12 respectively; This moment, center pole 14 lower end fluid holes 142 were communicated with the pipe endoporus 151 of relevant position respectively; As shown in Figure 3, then the liquid feeding blind hole 141 through center pole 14 middle parts adds sodium chloride and falls blocking solution, and blocking solution falls in the sodium chloride of present embodiment, and to select concentration for use be the sodium chloride solution of 5 mol; Sodium chloride falls blocking solution and flows into respectively in the main body axial bore 111 along liquid feeding blind hole 141, the fluid hole 142 of center pole 14; Pass through radial direction through hole 152 and pipe endoporus 151 again, be penetrated in the surrounding soil through a plurality of permeability holes 41 on the outer end end cap 4, with upper end cover 3 blocked center poles 14 liquid feeding blind hole 141; Earth connection is connected on the binding post 2, fills and leads up the utility model and tamp with soil at last.
The utility model can be applicable to low voltage power distribution network ground connection; Also can be widely used in the neutral ground of low-voltage alternating-current earth neutral system, the equipment ground in protection connecting to neutral iterative earthing and the isolated neutral system etc., also be applicable to that broadcasting, communication, electric power, railway, civil aviaton, high mountain, desert, oil gas are carried simultaneously and earth protective device that industries such as chemical industry are used.
Except that the foregoing description, the utility model can also have other execution modes, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.
Claims (4)
1. earth electrode is characterized in that: comprise the ground connection main body, be fixed on the binding post of ground connection main body upper end, said ground connection main body comprises main body, intermediate host, time main body, center pole and Duo Gen pipe; Said main body, intermediate host and the following main body of going up is fixedly connected sequentially; Following main body lower end is conical, and said center pole inserts goes up the main body axial bore, and center pole axial centre is provided with the liquid feeding blind hole; It is conical that pole lower end, center is; Evenly be provided with a plurality of fluid holes that connect with the liquid feeding blind hole on the taper seat of pole lower end, center, evenly be provided with a plurality of radial location holes corresponding with the fluid hole position on the said intermediate host outer peripheral face, many pipes insert each radial location hole respectively; Pipe one end puts in the main body axial bore, and the lozenges of pipe one end termination is resisted against on the taper seat of pole lower end, center; After the ground connection main body was pre-buried, pipe other end termination put in respectively in the ground connection main body surrounding soil, and a plurality of fluid holes of pole lower end, center are communicated with the pipe endoporus of relevant position respectively.
2. earth electrode as claimed in claim 1 is characterized in that: pole liquid feeding blind hole top, said center is provided with the blind hole end cap, pipe other end termination is provided with the pipe end cap, and said pipe end cap is provided with a plurality of axial dispersions hole.
3. earth electrode as claimed in claim 2 is characterized in that: said pipe axially spaced-apart is provided with several radial direction through hole.
4. like claim 1,2 or 3 described earth electrodes, it is characterized in that: said main body, intermediate host and the following main body of going up all adopts the hot galvanizing steel to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220098959XU CN202503117U (en) | 2012-03-16 | 2012-03-16 | Grounding body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220098959XU CN202503117U (en) | 2012-03-16 | 2012-03-16 | Grounding body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202503117U true CN202503117U (en) | 2012-10-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220098959XU Expired - Fee Related CN202503117U (en) | 2012-03-16 | 2012-03-16 | Grounding body |
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| CN (1) | CN202503117U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979648A (en) * | 2015-07-15 | 2015-10-14 | 国家电网公司 | Electrode for measuring grounding resistance |
| CN105024179A (en) * | 2015-07-23 | 2015-11-04 | 中国平煤神马集团汝州电化有限公司 | Grounding electrode for burn-through transformer for calcium carbide furnace and mounting method of grounding electrode |
| CN105655739A (en) * | 2016-04-15 | 2016-06-08 | 国网河南省电力公司漯河供电公司 | Anticorrosion antitheft ground rod of power distribution network and application method thereof |
| CN106058499A (en) * | 2016-05-19 | 2016-10-26 | 国网河南省电力公司南阳供电公司 | Transformer substation outdoor equipment area foundation structure |
| CN106356651A (en) * | 2016-10-12 | 2017-01-25 | 国网江苏省电力公司盱眙县供电公司 | Pre-buried ground stud |
| CN112447310A (en) * | 2020-11-13 | 2021-03-05 | 广东电网有限责任公司 | Resistance reducing agent and preparation method and application thereof |
| CN113437542A (en) * | 2021-06-25 | 2021-09-24 | 河南四达电力设备股份有限公司 | Modular excavation-free grounding device of stainless steel package steel |
-
2012
- 2012-03-16 CN CN201220098959XU patent/CN202503117U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979648A (en) * | 2015-07-15 | 2015-10-14 | 国家电网公司 | Electrode for measuring grounding resistance |
| CN105024179A (en) * | 2015-07-23 | 2015-11-04 | 中国平煤神马集团汝州电化有限公司 | Grounding electrode for burn-through transformer for calcium carbide furnace and mounting method of grounding electrode |
| CN105024179B (en) * | 2015-07-23 | 2017-05-17 | 中国平煤神马集团汝州电化有限公司 | Grounding electrode for burn-through transformer for calcium carbide furnace and mounting method of grounding electrode |
| CN105655739A (en) * | 2016-04-15 | 2016-06-08 | 国网河南省电力公司漯河供电公司 | Anticorrosion antitheft ground rod of power distribution network and application method thereof |
| CN105655739B (en) * | 2016-04-15 | 2017-12-08 | 国网河南省电力公司漯河供电公司 | A kind of power distribution network anti-corrosion anti-theft grounding rod and its application method |
| CN106058499A (en) * | 2016-05-19 | 2016-10-26 | 国网河南省电力公司南阳供电公司 | Transformer substation outdoor equipment area foundation structure |
| CN106058499B (en) * | 2016-05-19 | 2018-06-22 | 国网河南省电力公司南阳供电公司 | A kind of outside transformer substation battery limits foundation structure |
| CN106356651A (en) * | 2016-10-12 | 2017-01-25 | 国网江苏省电力公司盱眙县供电公司 | Pre-buried ground stud |
| CN112447310A (en) * | 2020-11-13 | 2021-03-05 | 广东电网有限责任公司 | Resistance reducing agent and preparation method and application thereof |
| CN113437542A (en) * | 2021-06-25 | 2021-09-24 | 河南四达电力设备股份有限公司 | Modular excavation-free grounding device of stainless steel package steel |
| CN113437542B (en) * | 2021-06-25 | 2023-08-11 | 河南四达电力设备股份有限公司 | Combined stainless steel ladle steel excavation-free 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: 20121024 Termination date: 20200316 |