CN2698637Y - Aluminum alloy grounding block for light car - Google Patents
Aluminum alloy grounding block for light car Download PDFInfo
- Publication number
- CN2698637Y CN2698637Y CN 200420040313 CN200420040313U CN2698637Y CN 2698637 Y CN2698637 Y CN 2698637Y CN 200420040313 CN200420040313 CN 200420040313 CN 200420040313 U CN200420040313 U CN 200420040313U CN 2698637 Y CN2698637 Y CN 2698637Y
- Authority
- CN
- China
- Prior art keywords
- aluminum
- aluminum alloy
- copper bush
- copper
- blocks
- 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
Abstract
The utility model relates to an aluminum alloy grounding block for light cars, in particular to an electric conduction grounding protection block used on the light rail underground aluminum alloy car body, which solves the following technical problems existing in the background technique: it is difficult to weld the copper and the aluminum, the fastness of the grounding block is poor, and the grounding block is easy to corrode and deform. The technical projects solving the technical problems are as follows: an aluminum alloy grounding block for light cars is characterized in that aluminum blocks with a quadrate cross section are filled in a copper bush whose cross section is congruent with the aluminum blocks; the aluminum blocks and the copper bush are interference fit; the copper bush is connected to the aluminum blocks by rivets; circular holes are drilled on the copper bush filled with aluminum blocks. The utility model is provided with the following advantages: the aluminum blocks and the copper bush are provided with very high connecting fastness, the head of the copper bush at the extending position of the aluminum blocks can be convenient and firm to weld with the chassis of the aluminum car body, and the sensibility of the grounding protection is high.
Description
Technical field: the utility model relates to the light body car of a kind of aluminum alloy ground connection piece, particularly a kind of conductive earthing protection piece that is used on the light rail subway aluminum alloy bodywork chassis.
Background technology: the existing basic structure that is used for the conductive grounding device on the light rail subway aluminum alloy bodywork chassis is: use bolt in the car body chassis of aluminium matter the copper gusset piece, on the copper gusset piece, connect L type copper earth plate with bolt earlier again, again copper gusset piece and L type copper earth plate are welded, be drilled with circular hole on the non-face of weld of L type copper earth plate.The existing obvious problem of this earth system is: the fastness of two kinds of metal solder difficulties of copper and aluminium, device is poor and corroded easily and be out of shape.
Summary of the invention: technical problem to be solved in the utility model is exactly that background technology exists: the fastness of two kinds of metal solder difficulties of copper and aluminium, device is poor and corroded easily and be out of shape.Solving this technical problem the technical scheme that is adopted is: the light body car of a kind of aluminum alloy ground connection piece, it is characterized in that this ground connection piece by cross-sectional plane be square aluminium block be filled in its cross section congruence copper sheathing in, the two interference fit, copper sheathing connects by rivet with aluminium block, is drilled with circular hole on the copper sheathing of filling aluminium block.Wherein, two rivets of connection copper sheathing and aluminium block are positioned at symmetric position.
The beneficial effect that the utility model and background technology comparison are had is: owing to adopt technique scheme, and first, make aluminium block and copper sheathing have very high connection fastness, the head that aluminium block is stretched place's copper sheathing can make things convenient for, weld with aluminium matter car body chassis securely; The second,, guaranteed the sensitivity of ground protection owing to the good conductivity of copper.
Description of drawings: Fig. 1 is the utility model structural representation.
The specific embodiment: with reference to figure 1, the light body car of a kind of aluminum alloy ground connection piece, it is characterized in that this ground connection piece by cross-sectional plane be square aluminium block 3 press-fit in its cross section congruence copper sheathing 1 in, the two interference fit, copper sheathing 1 connects by rivet 2 with aluminium block 3, press-fits on the copper sheathing 1 of aluminium block to be drilled with circular hole 4.Two rivets 2 that connect copper sheathing 1 and aluminium block 3 are positioned at symmetric position, and then the utility model is implemented to finish.
Claims (2)
1, the light body car of a kind of aluminum alloy ground connection piece, it is characterized in that this ground connection piece by cross-sectional plane be square aluminium block (3) press-fit in its cross section congruence copper sheathing (1) in, the two interference fit, copper sheathing (1) connects by rivet (2) with aluminium block (3), press-fits on the copper sheathing (1) of aluminium block to be drilled with circular hole (4).
2,, it is characterized in that two rivets (2) that connect copper sheathing (1) and aluminium block (3) are positioned at symmetric position according to the light body car of the described a kind of aluminum alloy of claim 1 ground connection piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040313 CN2698637Y (en) | 2004-04-29 | 2004-04-29 | Aluminum alloy grounding block for light car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420040313 CN2698637Y (en) | 2004-04-29 | 2004-04-29 | Aluminum alloy grounding block for light car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2698637Y true CN2698637Y (en) | 2005-05-11 |
Family
ID=34774248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420040313 Expired - Fee Related CN2698637Y (en) | 2004-04-29 | 2004-04-29 | Aluminum alloy grounding block for light car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2698637Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010030A (en) * | 2011-09-28 | 2013-04-03 | 苏州市南方欣达双金属材料有限公司 | Ground connection block of electric locomotive body and processing method thereof |
| CN103010029A (en) * | 2011-09-28 | 2013-04-03 | 苏州市南方欣达双金属材料有限公司 | Ground connection block of electric locomotive underpan and processing method thereof |
-
2004
- 2004-04-29 CN CN 200420040313 patent/CN2698637Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010030A (en) * | 2011-09-28 | 2013-04-03 | 苏州市南方欣达双金属材料有限公司 | Ground connection block of electric locomotive body and processing method thereof |
| CN103010029A (en) * | 2011-09-28 | 2013-04-03 | 苏州市南方欣达双金属材料有限公司 | Ground connection block of electric locomotive underpan and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050511 Termination date: 20120429 |