CN202189898U - Screw fastened bridge lathedog - Google Patents
Screw fastened bridge lathedog Download PDFInfo
- Publication number
- CN202189898U CN202189898U CN2011201669293U CN201120166929U CN202189898U CN 202189898 U CN202189898 U CN 202189898U CN 2011201669293 U CN2011201669293 U CN 2011201669293U CN 201120166929 U CN201120166929 U CN 201120166929U CN 202189898 U CN202189898 U CN 202189898U
- Authority
- CN
- China
- Prior art keywords
- screw
- lathedog
- bridge
- bolt
- anchor ears
- 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
A screw fastened bridge lathedog relates to a building construction device, in particular to a lathedog. The bridge lathedog comprises two anchor ears, one end of one anchor ear and one end of the other are connected through a first screw bolt, and the other ends of the two anchor ears are connected through a second screw bolt; the cross sections of the two anchor ears between the first screw bolt and the second screw bolt are outwards prominent semicircles; and at least one screw hole for setting a screw is formed on each of the two anchor ears between the first screw bolt and the second screw bolt. The utility model has the advantages that (1), the structure is simple; (2) the bridge lathedog are made from leftover material on a construction site, which is convenient, fast, and low in cost, and facilitates installation and realizes waste utilization; and (3) the bridge lathedog is practical and reliable since the screw can penetrate the insulation layer of a steel pipe to realize tight contact between the anchor ear and the steel pipe, not only meeting requirements on reliable electric connection, but also protecting the cosmoline coating on the steel pipe against damage to the utmost extent.
Description
Technical field
The utility model relates to architectural furniture, relates in particular to a kind of clip.
Background technology
In civil buildings; For blast and the fire of preventing that indirect contact electric shock and antiground fault cause; But conducting positions such as building metallic conduit will be done equipotential bonding, and metallic conduit valve, table, connecting hose place need do the equipotential jumper and connect because conduction is cut off.
If selected two test points in an alive circuit, recording does not have voltage promptly not have potential difference between them, assert that then these two test points are equipotential, does not have resistance between them yet.Equipotential bonding in the building is that metal that each electric device in the building and other device are exposed and conductive part couple together with manual work or natural grounding body and function conductor and be called equipotential bonding with the purpose that reaches the minimizing potential difference.Under the situation that equipotential bonding is obstructed, then need do the ground connection cross-over connection and realize electrical continuity.
When between metallic conduit flange or valve, connecting, because connecting portion has electrically non-conductive material such as rubber to intercept, if pipeline is struck by lightning or then personnel's electric shock accidents might take place when being touched by energized conductor.And according to code requirement, cast-iron pipe and zinc-plated pipeline do not allow to weld, and therefore need adopt braiding copper cash or copper core flexible conductor as earth connection usually with grounding clip at flange, valve, connecting hose across earth connection.
In the middle of construction reality; Because pipeline external surfaces such as fire_fighting pipe network will be brushed several roads corrosion resistant coating; Often to face a problem when doing cross-over connection, promptly how under the prerequisite of not destroying the paint anticorrosive coat, can realize the electrically conducting of equipotential bonding again with traditional grounding clip.If after whitewashing is accomplished, carry out cross-over connection again, between grounding clip and steel pipe, then have the thick insulating barrier of one deck so.Suppose that one section of steel pipe touches with charged object, thereby produce potential difference,, can not high potential be transmitted in the ground network, have potential safety hazard because the megohmite insulant obstruct is arranged between grounding clip and the steel pipe with the earth.Therefore want to avoid the generation of this situation, will make equipotential bonding reliable continuously whitewashing the antifouling paint good grounding clip of cross-over connection before.Yet this construction method produces a new problem again; The part that steel pipe does not whitewash corrosion resistant coating can not guarantee that contact is tight seamless between grounding clip and the pipeline; Corroded by rainwater, greasy dirt, pipe quality is exerted an influence, thus the potential safety hazard of causing.
Summary of the invention
The purpose of the utility model is in order to overcome the deficiency of prior art, a kind of screw tightening formula cross-over connection clip to be provided, under the prerequisite of not destroying the paint anticorrosive coat, can realizing the electrically conducting of equipotential bonding again.
The purpose of the utility model is achieved in that screw tightening formula cross-over connection clip; Comprise two anchor ears; One end of two anchor ears connects through first bolt, and the other end of two anchor ears connects through second bolt, and the section of two anchor ears between first bolt and second bolt is the semicircle of outside protrusion respectively; Be respectively provided to few screw hole on two anchor ears between first bolt and second bolt, screw is set respectively in each screw hole.
The utlity model has following advantage: (1) is simple in structure, improves to some extent than traditional grounding clip, only needs to increase fewer parts such as some apertures and screw and just can realize its function;
(2) adopt the leftover pieces of job site to make, convenient, fast, twice laid, cost are lower, are convenient to install;
(3) practical reliable.Screw can penetrate the steel pipe insulating barrier, and anchor ear is closely contacted with steel pipe, not only can satisfy the requirement of electric reliable connection, can protect the antiseptic oil enamelled coating of steel pipe not to be destroyed again to greatest extent, in engineering practice, has brought into play certain effect.
The utility model can be widely used in the equipotential cross-over connection of each metallic conduit such as skyscraper roofworks fire protection pipeline, gas pipeline, can on the oil pipeline of basement diesel generation machine room, do the equipotential cross-over connection of antistatic again.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is the reference figure of the utility model use occasion.
Embodiment
As shown in Figure 1; Screw tightening formula cross-over connection clip comprises that an end of 1, two anchor ear 1 of two anchor ears connects through first bolt 2; The other end of two anchor ears 1 connects through second bolt 5; The section of two anchor ears 1 between first bolt 2 and second bolt 5 is the semicircle of outside protrusion respectively, on two anchor ears between first bolt 2 and second bolt 5 two screw holes 3 is set respectively, in each screw hole 3 screw 4 is set respectively.
As shown in Figure 2, connect water meter 7 on the pipeline 6, the both sides of water meter 7 are mounting screw tightening formula cross-over connection clip respectively, and two screw tightening formula cross-over connection clips connect through PE line 8.During installation, lean on two semicircle anchor ears real and two bolts of screwing a little, adjust the bolt of screwing once more behind the appropriate position and live.Two screws in elder generation's tightening, following two screws of tightening and guarantee that two screw tip can fully contact with pipeline outer wall will in time be brushed antirust paint to screw after the installation and carry out anti-corrosion protection and play a part fixing again.
Claims (1)
1. screw tightening formula cross-over connection clip; Comprise two anchor ears; One end of two anchor ears connects through first bolt, and the other end of two anchor ears connects through second bolt, and the section of two anchor ears between first bolt and second bolt is the semicircle of outside protrusion respectively; It is characterized in that: be respectively provided to few screw hole on two anchor ears between first bolt and second bolt, screw is set respectively in each screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201669293U CN202189898U (en) | 2011-05-24 | 2011-05-24 | Screw fastened bridge lathedog |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201669293U CN202189898U (en) | 2011-05-24 | 2011-05-24 | Screw fastened bridge lathedog |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202189898U true CN202189898U (en) | 2012-04-11 |
Family
ID=45921333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201669293U Expired - Fee Related CN202189898U (en) | 2011-05-24 | 2011-05-24 | Screw fastened bridge lathedog |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202189898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464616A (en) * | 2013-08-01 | 2013-12-25 | 浙江恒成硬质合金有限公司 | Split mould |
-
2011
- 2011-05-24 CN CN2011201669293U patent/CN202189898U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464616A (en) * | 2013-08-01 | 2013-12-25 | 浙江恒成硬质合金有限公司 | Split mould |
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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 |
Granted publication date: 20120411 Termination date: 20170524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |