CN2800282Y - Lightningproof earth resistance test terminal protection box for building - Google Patents
Lightningproof earth resistance test terminal protection box for building Download PDFInfo
- Publication number
- CN2800282Y CN2800282Y CN 200520049937 CN200520049937U CN2800282Y CN 2800282 Y CN2800282 Y CN 2800282Y CN 200520049937 CN200520049937 CN 200520049937 CN 200520049937 U CN200520049937 U CN 200520049937U CN 2800282 Y CN2800282 Y CN 2800282Y
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- CN
- China
- Prior art keywords
- box body
- test terminal
- lid
- protection
- box
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Abstract
The utility model includes a metal test terminal (13), one end of which is welded with a downlead of a building that is connected with a lightning-proof earthed body. The utility model also includes a protection box body (2) and a removeable box cover (1). Another end of the metal test terminal (13) is fixed in the box body (2). The box body (2) is made of load-bearing materials, for example, cast steel, belonging to metals. The metal test terminal and the metal box body (2) insulate from each other. The surfaces of the box body (2), the box cover (1) and the metal test terminal (13) are all equipped with protective layers. Switching of the box cover (1) adopts a structure which can not be opened easily by persons except test persons. The front end of the external wall of the box body (2) is equipped with a step which prevents the front surface of the box body (2) from sinking into the wall. The utility model is provided with the following advantages: it standardizes the setting of the test terminal, keeps tested earth resistance accurate permanently, ensures the test terminal to test permanently and avoids injury danger of lightning shock on the test terminal.
Description
Technical field
The utility model relates to a kind of building lightning protection earthing device, specifically be a kind of be installed in the body of wall or concrete structure etc. in building lightning protection earth resistance terminal protecting box.
Background technology
As everyone knows, the quality of one building buildings or structures lightning protection effect, quality of materials, the quantity that depends on the lightning protection body to a great extent is effective grounding area and the factors such as arrangement of grounding body in soil, being reflected on the code requirement, is exactly that grounding resistance must less than what according to different buildings classifications.Yet the grounding body resistance value of buildings is owing to being subjected to underground water table sedimentation in the material burn into soil, especially having used the grounded screen of friction reducer can cause the rising of grounding resistance along with the influence of many reasons such as decomposition loss of friction reducer in construction.The serviceable life of buildings in general between 30～70 years, some in addition go up century-old.In order to grasp the grounding resistance of these buildingss at any time effectively, just must long-lived earth resistance terminal be installed, so that take to set up measures to rectify and reform such as artificial earth electrode as required by code requirement.
But existing calibrating terminal (being metal material makes) is very lack of standardization, and shape is multifarious as band iron, round steel, steel pipe, angle steel etc.; Especially calibrating terminal exposes oxidized outside corrosion for a long time, has a strong impact on the accuracy of detected value; Even lost for fractureing by the people behind the heavy corrosion or firmly covered and to detect by pastes such as mortar cement; Simultaneously since exposed outside, just in case people Zheng Chu this place is arranged when being struck by lightning, then the danger of being hit injury by thunder and lightning is arranged; In addition, various nonstandard terminals are exposed outside, have a strong impact on the sight of whole buildings.
The utility model content
The technical problems to be solved in the utility model is, overcomes above the deficiencies in the prior art, provides a kind of detected value accurate, and makes the long-lived building lightning protection earth resistance of its calibrating terminal terminal protecting box.
Technical solution of the present utility model is, a kind of building lightning protection earth resistance terminal protecting box with following structure is provided, and it comprises the metallic test terminal, the downlead that is connected with the lightning protection body welding of one end and buildings.It also comprises protection box box body and capable of taking off lid, and the other end of described metallic test terminal is fixed in the box body, and described box body is made by load-bearing material.
Described load-bearing material can adopt metal such as cast steel; Insulate between described metallic test terminal and the metal case; At described box body, lid and metallic test terminal surfaces matcoveredn; The stubborn structure of non-testing staff is adopted in the folding of lid; At box body outer wall front end the step that prevents in the recessed metope of box body front surface is arranged.
After adopting above structure, the utlity model has following advantage: 1, make the standardization that is provided with of calibrating terminal; 2, provide reliable assurance for calibrating terminal and buildings long-term co-existence, thus the permanent accuracy that keeps grounding resistance to detect; 3, guarantee that calibrating terminal is not artificially damaged or do not lived by paste such as mortar cement and not decorated material etc. cover and can detect to permanent property; 4, avoided calibrating terminal to be in the personal injury that may occur when thunderbolt takes place; 5, provide interface (this calibrating terminal can also be used for equipment interface and the usefulness of making equipotential in the buildings) for setting up the artificial earth electrode; 6, improve the sight of buildings.
Description of drawings
Fig. 1 is the structural representation (Fig. 1 is the B-B echelon sectional view among Fig. 2) of this protection box.
Fig. 2 is that A among Fig. 1 is to view.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
In Fig. 1, Fig. 2, this building lightning protection earth resistance terminal protecting box comprises metallic test terminal 13, and it also comprises protection box box body 2 and capable of taking off lid (plate) 1.One end of described metallic test terminal 13 is fixed in the box body 2, and described box body 2 is made by load-bearing material, and the material of lid 1 is general identical with box body 2.
Described load-bearing material can be metal, preferably adopts cast steel.The end of described metallic test terminal 13 outside box body 2 is the steel pipe 6 that is provided with cross-drilled hole 7, end in box body 2 is a threaded post 15, the diameter of threaded post 15 is less than the external diameter of steel pipe 6, and threaded post 15 is fixed on box body 2 rear walls by nut 4 through the hole 14 on box body 2 rear walls.Use high quality round bar during installation, horizontal stroke (directly) passes in steel pipe 16 holes of (going into) metallic test terminal 13 as required, reliably welds; Again the other end of round steel firmly is welded on buildings and the downlead that the lightning protection body is connected by code requirement.
Insulation between described metallic test terminal 13 and the metal case 2.Described insulation refers between metallic test terminal 13 and metal case 2 insulating washer is arranged.Described insulating washer is made up of the insulating sleeve 5 in the packing ring 8 of box body 2 rear wall outer faces, the back cinclides 14 and the packing ring 8 of rear wall inner face.
The opening-closing structure of described capable of taking off lid 1 is: the outer face of lid 1 is concordant with the frontal plane of the frame of box body 2, and the height dimension of lid 1 is slightly smaller than the height dimension in the box body 2 front opening places.In the box body 2 front opening places upper end of two side and lid 1 both sides upper end respectively have one (to) hole 11 and the pin 10 of coupling mutually, be longer than or greater than the diameter of pin 10 in described hole 11.The diapire at box body 2 front opening places and lid 1 bottom have one (to) projection 9 and the pit 12 of coupling mutually.Lid 1 makes pit 12 and projection coincide under deadweight.Need open the lid 1 o'clock, and lid 1 upwards will be levered up earlier, outwards open again.The above opening-closing structure of the lid 1 non-testing staff who separates this structure that is unable to use is difficult to open the lid 1.
Be provided with chromium plating or zinc-plated protective seam on metallic test terminal 13 surfaces.Be equipped with zinc-plated on the surface of box body 2 and lid 1 or the corrosion protection layer that turns blue, its effect is to make it more permanent, to reach the effect with buildings long-term co-existence.
At box body 2 outer wall front ends the step 16 that prevents in the recessed metope of box body 2 front surfaces is arranged.Effect is after this protection box being embedded body of wall at flour sand pulp-water mud and before mounting facing plate etc.; naturally reserve flour sand pulp-water mud from now on and mount the position of facing plate etc.; promptly the frontal plane of box body 2 frames of this protection box is consistent with surface of wall after body of wall completes at last; in order to avoid box body 2 is recessed and be overshadowed in the body of wall, and hinder following testing.The effect of groove 3 is to make box body 2 more firm with combining of body of wall.
Claims (9)
1, a kind of building lightning protection earth resistance terminal protecting box; it comprises metallic test terminal (13); the one end welds with the downlead that is connected with the lightning protection body of buildings; it is characterized in that: it also comprises protection box box body (2) and capable of taking off lid (1); the other end of described metallic test terminal (13) is fixed in the box body (2), and described box body (2) is made by load-bearing material.
2, protection box according to claim 1, it is characterized in that: described load-bearing material refers to metal.
3, the described protection box of root claim 2 is characterized in that: described metal finger cast steel.
4, protection box according to claim 2 is characterized in that: insulation between described metallic test terminal (13) and the metal case (2).
5, protection box according to claim 4 is characterized in that: described insulation refers between metallic test terminal (13) and metal case (2) insulating washer is arranged.
6, protection box according to claim 1; it is characterized in that: the end of described metallic test terminal (13) outside box body (2) is for being provided with the steel pipe (6) of cross-drilled hole (7); end in box body (2) is threaded post (15); the diameter of threaded post (15) is less than the external diameter of steel pipe (6); one end of described metallic test terminal (13) is fixed in the box body (2) and refers to that threaded post (15) is fixed on box body (2) rear wall by nut (4) through the hole (14) on box body (2) rear wall.
7, protection box according to claim 1, it is characterized in that: the opening-closing structure of described capable of taking off lid (1) is: the outer face of lid (1) is concordant with the frontal plane of box body (2) frame, and the height dimension of lid (1) is slightly smaller than the height dimension in box body (2) the front opening place; Respectively there is the mutually hole (11) and the pin (10) of coupling the upper end of two side and lid (1) both sides upper end in box body (2) the front opening place, and be longer than or greater than the diameter of pin (10) described hole (11); There is a projection (9) and a pit (12) that mates mutually the diapire at box body (2) front opening place and lid (1) bottom.
8, protection box according to claim 1 is characterized in that: be provided with chromium plating or zinc-plated protective seam on metallic test terminal (13) surface; All have zinc-plated or the corrosion protection layer that turns blue on the surface of box body (2) and lid (1).
9, protection box according to claim 1 is characterized in that: at box body (2) outer wall front end the step (16) that prevents in the recessed metope of box body (2) front surface is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520049937 CN2800282Y (en) | 2005-04-29 | 2005-04-29 | Lightningproof earth resistance test terminal protection box for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520049937 CN2800282Y (en) | 2005-04-29 | 2005-04-29 | Lightningproof earth resistance test terminal protection box for building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2800282Y true CN2800282Y (en) | 2006-07-26 |
Family
ID=36842779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520049937 Expired - Fee Related CN2800282Y (en) | 2005-04-29 | 2005-04-29 | Lightningproof earth resistance test terminal protection box for building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2800282Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081119A (en) * | 2009-11-29 | 2011-06-01 | 新兴重工湖北三六一一机械有限公司 | Electrostatic grounding protection device for detecting grounding resistances |
| CN104993440A (en) * | 2015-07-14 | 2015-10-21 | 北京万兴建筑集团有限公司 | Lightning-protection manual grounding system and construction method by utilizing structure steel bar externally-connected downlead wire |
| CN107275815A (en) * | 2017-07-12 | 2017-10-20 | 中国人民解放军63926部队 | Formula ground concealed installation ground terminal box and its installation method are inserted a kind ofly |
-
2005
- 2005-04-29 CN CN 200520049937 patent/CN2800282Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081119A (en) * | 2009-11-29 | 2011-06-01 | 新兴重工湖北三六一一机械有限公司 | Electrostatic grounding protection device for detecting grounding resistances |
| CN102081119B (en) * | 2009-11-29 | 2013-05-01 | 新兴重工湖北三六一一机械有限公司 | Electrostatic grounding protection device for detecting grounding resistances |
| CN104993440A (en) * | 2015-07-14 | 2015-10-21 | 北京万兴建筑集团有限公司 | Lightning-protection manual grounding system and construction method by utilizing structure steel bar externally-connected downlead wire |
| CN107275815A (en) * | 2017-07-12 | 2017-10-20 | 中国人民解放军63926部队 | Formula ground concealed installation ground terminal box and its installation method are inserted a kind ofly |
| CN107275815B (en) * | 2017-07-12 | 2023-06-23 | 中国人民解放军63926部队 | Ground-inserted ground concealed-installation grounding terminal box and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |