CN211455974U - Bridge frame grounding device - Google Patents
Bridge frame grounding device Download PDFInfo
- Publication number
- CN211455974U CN211455974U CN201921912134.5U CN201921912134U CN211455974U CN 211455974 U CN211455974 U CN 211455974U CN 201921912134 U CN201921912134 U CN 201921912134U CN 211455974 U CN211455974 U CN 211455974U
- Authority
- CN
- China
- Prior art keywords
- wire box
- flat iron
- bridge
- galvanized flat
- galvanized
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910052742 iron Inorganic materials 0.000 claims abstract description 26
- 239000002985 plastic film Substances 0.000 claims abstract description 10
- 229920006255 plastic film Polymers 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 7
- 238000004870 electrical engineering Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Abstract
The utility model relates to a construction electrical engineering construction technical field specifically is a crane span structure earthing device, comprises zinc-plated band iron, line box: the top of the wire box is provided with a hole, and the hole is matched with the shape of the galvanized flat iron; the galvanized flat iron is bent by 90 degrees, and the vertical side of the galvanized flat iron is inserted into a wire box; and the wire box is wrapped with a plastic film to seal the wire box and the joint. The bridge grounding device effectively solves the problem of effective connection of the bridge and the protective grounding body, ensures the use safety of a power supply circuit, is simple to manufacture and install, is convenient to connect and is reliable and attractive due to the fact that the bridge is installed below a floor slab and is just embedded right above the bridge.
Description
Technical Field
The utility model relates to a construction electrical engineering construction technical field specifically is a crane span structure earthing device.
Background
According to the regulation in the national standard 'construction quality acceptance standard for electrical and architectural engineering': when the total length of the ladder frame, the tray and the groove box is not more than 30m, the total length is not less than 2 parts which are reliably connected with the protective conductor; when the total length is more than 30m, a connection point is added every 20 m-30 m, and the starting end and the terminal end are both reliably grounded.
The content is often ignored in the current electrical engineering construction process, the bridge is not reliably connected with the protection conductor, and only the electrical connection of the jumper wire between bridge sections is carried out, so that potential safety hazards exist in the use process of a power supply line.
Disclosure of Invention
The utility model provides a problem that the crane span structure was not all reliably connected with the protection conductor in depositing the electrical engineering construction, the utility model provides a crane span structure earthing device.
The utility model discloses a crane span structure earthing device, its characterized in that comprises line box and galvanized band iron: the top of the wire box is provided with a hole, and the hole is matched with the shape of the galvanized flat iron; the galvanized flat iron is bent by 90 degrees, and the vertical side of the galvanized flat iron is inserted into a wire box; and the wire box is wrapped with a plastic film to seal the wire box and the joint.
The bottom of the galvanized flat iron is higher than the bottom of the wire box, so that the flat iron does not protrude out of the plastic film outside the wire box; and welding the galvanized round steel along the horizontal side of the galvanized flat iron. After the pre-embedding is finished, the lightning protection system of the whole building is effectively connected through the galvanized round steel, and the lightning protection system of the whole building is used as a bridge protection conductor.
The plastic film is made of polyvinyl chloride. The polyvinyl chloride is used for sealing the wire box, so that the wire box has good mechanical property, chemical resistance, corrosion resistance and flame retardancy. And (5) removing the plastic film after the pre-embedding is finished, and preventing mortar and cement from being poured in during concrete pouring.
The wire box is a metal stretching wire box.
The utility model discloses a crane span structure earthing device has effectively solved the crane span structure and has protected the effective connection of grounding body, has guaranteed the safe in utilization of power supply line, and the preparation installation is simple, because the crane span structure is installed in the floor below, and crane span structure earthing device is again just pre-buried directly over the crane span structure, connects conveniently, reliably pleasing to the eye.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the wire box portion of the present invention.
Wherein, the wire box 1 is a galvanized flat iron 2.
Detailed Description
Example 1: the bridge frame grounding device is characterized by consisting of a wire box 1 and galvanized flat iron 2: the top of the wire box 1 is provided with a hole, and the shape of the hole is matched with that of the galvanized flat iron 2; the galvanized flat iron 2 is bent by 90 degrees, and the vertical side of the galvanized flat iron 2 is inserted into the wire box 1; the wire box 1 is wrapped with a plastic film to seal the wire box 1 and the joint; the bottom of the galvanized flat iron 2 is higher than the bottom of the wire box 1, so that the flat iron does not protrude out of the plastic film outside the wire box 1; and welding galvanized round steel along the horizontal side of the galvanized flat iron 2. The BIM technology is utilized to comprehensively arrange the bridge, and the installation position of the bridge grounding device is determined according to the national standard requirement. And marking with paint when the floor formwork is erected. Before concrete pouring is finished by binding the reinforcing steel bars, the bridge grounding device is fixedly installed, and the zinc-plated round steel which is 10 times longer than the bridge grounding device is effectively welded and connected with the whole grounding grid; treat the later stage, utilize 4 ~ 10 square millimeter's copper conductor during the crane span structure installation, one end directly links to each other with connecting hole on the line box 1, and the other end is connected with the crane span structure earth bolt.
Claims (4)
1. The bridge frame grounding device is characterized by consisting of a wire box (1) and galvanized flat iron (2): the top of the wire box (1) is provided with an opening, and the opening is matched with the galvanized flat iron (2) in shape; the galvanized flat iron (2) is bent by 90 degrees, and the vertical side of the galvanized flat iron (2) is inserted into the wire box (1); and the wire box (1) is wrapped with a plastic film to seal the wire box (1) and the joint.
2. The bridge grounding device of claim 1, wherein the bottom of the galvanized flat iron (2) is higher than the bottom of the wire box (1) so that the flat iron does not protrude from the plastic film outside the wire box (1); and welding the galvanized round steel along the horizontal side of the galvanized flat iron (2).
3. The bridge grounding assembly of claim 1, wherein said plastic film is polyvinyl chloride.
4. Bridge earthing device according to claim 1, characterized in that the wire box (1) is a metal tensile wire box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921912134.5U CN211455974U (en) | 2019-11-07 | 2019-11-07 | Bridge frame grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921912134.5U CN211455974U (en) | 2019-11-07 | 2019-11-07 | Bridge frame grounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211455974U true CN211455974U (en) | 2020-09-08 |
Family
ID=72304342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921912134.5U Expired - Fee Related CN211455974U (en) | 2019-11-07 | 2019-11-07 | Bridge frame grounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211455974U (en) |
-
2019
- 2019-11-07 CN CN201921912134.5U patent/CN211455974U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 |