CN201306352Y - Improved structure of vehicle rotation-prevention wheel boss bolt - Google Patents
Improved structure of vehicle rotation-prevention wheel boss bolt Download PDFInfo
- Publication number
- CN201306352Y CN201306352Y CNU200820146214XU CN200820146214U CN201306352Y CN 201306352 Y CN201306352 Y CN 201306352Y CN U200820146214X U CNU200820146214X U CN U200820146214XU CN 200820146214 U CN200820146214 U CN 200820146214U CN 201306352 Y CN201306352 Y CN 201306352Y
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- CN
- China
- Prior art keywords
- bolt
- wheel boss
- bolt head
- wheel hub
- matched
- 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
The utility model discloses an improved structure of a vehicle rotation-prevention wheel boss bolt, which comprises a screw rod and a bolt head, wherein one end of the screw rod is fixed at the middle part of the bolt head, and one side of the bolt head is a stable surface which is matched with the wheel boss; the upper part of the bolt head presents in a trapezoid shape, and the lower part is the stable surface which is matched with the wheel boss and is an arc surface. The lower part of the bolt head is provided with the stable surface which is matched with the wheel boss and is arc surface, the length between the stable surface and the arc surface of the wheel boss is increased, namely, the contact area is increased, so that after being tightened, the bolt is uneasy to be dropped; at the same time, the arc stable surface can be better matched with the arc surface of the wheel boss, so that the fixed hole of the wheel boss is free from being damaged caused by the rotation of the bolt.
Description
Technical field
The utility model relates to a kind of fastening piece, particularly relates to a kind of improvement structure of automobile-used anti-spinning roller hub bolt.
Background technique
The wheel hub of truck with realize being connected by bolt 1 ' and nut 2 ' (shown in Figure 1A) between the steel ring.For the convenience of installing and fastening after stability, generally all be provided with stability plane 12 ' (shown in Figure 1B) on the side of bolt 1 ' head 11 ', cylindrical bolt head 11 ' is vertically cut a part of circular arc, form parallel breach (shown in Fig. 1 C), the stabilising surface of this stability plane 12 ' and wheel hub 10 ' lean (shown in Fig. 1 D) during installation, can prevent that bolt 1 ' rotates thereupon in the process of fastening nut 2 ', fastening back is difficult for loosening, but the stability plane 12 ' of this bolt head 11 ' portion is too little with wheel hub 10 ' the contacted area, the stabilising surface (dotted portion among the figure) of wheel hub 10 ' can cut in bolt head 11 ' portion in the process of fastening nut 2 ', thereby cause bolt 1 ' loosening rotation in wheel hub 10 ' hole, bolt 1 ' after loosening very easily is cut off under the situation of alternate load, thereby causes wheel hub 10 ' bolt short 1 ' working life, wheel hub 10 ' scrappage height.
The model utility content
The purpose of this utility model is to provide a kind of difficult drop-off, tightness is good, assembling is easy to automobile-used anti-spinning roller hub bolt improvement structure.
For achieving the above object, technical solution of the present utility model is:
The utility model is a kind of improvement structure of automobile-used anti-spinning roller hub bolt, and it comprises screw rod and bolt head, and an end of screw rod is fixed in the middle part of bolt head, and the first side of bolt is the stabilising surface that cooperates with wheel hub; The top of described bolt head is trapezoid shaped, and the stabilising surface that the bottom cooperates with wheel hub is an arc surface.
After adopting such scheme, because the stabilising surface that the utility model bolt head bottom cooperates with wheel hub is an arc surface, increased the length of stabilising surface and wheel hub cambered surface, be that area of contact increases, be not easy after the bolton to get loose, the cambered surface of the stabilising surface of arc and wheel hub is more identical simultaneously, can not damage the wheel hub fixed hole because of the rotation of bolt.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Figure 1A commonly uses the bolts and nuts exploded view;
Figure 1B is a front view of commonly using bolt;
Fig. 1 C be Figure 1B along A to view;
Fig. 1 D commonly uses the scheme of installation of bolt on wheel hub;
Fig. 2 is an axonometric drawing of the present utility model;
Fig. 3 be Fig. 2 along A to view.
Embodiment
As shown in Figure 2, the utility model comprises bolt 1 and nut 2 as a complete fastener, and during installation, bolt 1 is screwed onto in the screw of nut 2 central authorities.
As shown in Figure 2, described bolt 1, it comprises screw rod 11 and bolt head 12, and an end of screw rod 11 is fixed in the middle part of bolt head 12, and the top 121 of bolt head 12 is trapezoid shaped, and the stabilising surface 121 that the bottom cooperates with wheel hub is arc surface (as shown in Figure 3).
Emphasis of the present invention just is: the stabilising surface that the bolt head bottom cooperates with wheel hub is an arc surface.
Claims (1)
1, a kind of improvement structure of automobile-used anti-spinning roller hub bolt, it comprises screw rod and bolt head, and an end of screw rod is fixed in the middle part of bolt head, and the first side of bolt is the stabilising surface that cooperates with wheel hub; It is characterized in that: the top of described bolt head is trapezoid shaped, and the stabilising surface that the bottom cooperates with wheel hub is an arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820146214XU CN201306352Y (en) | 2008-11-08 | 2008-11-08 | Improved structure of vehicle rotation-prevention wheel boss bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820146214XU CN201306352Y (en) | 2008-11-08 | 2008-11-08 | Improved structure of vehicle rotation-prevention wheel boss bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306352Y true CN201306352Y (en) | 2009-09-09 |
Family
ID=41098818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820146214XU Expired - Fee Related CN201306352Y (en) | 2008-11-08 | 2008-11-08 | Improved structure of vehicle rotation-prevention wheel boss bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306352Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261364A (en) * | 2011-06-07 | 2011-11-30 | 南通赛孚机械设备有限公司 | Bolt special for degassing tank access opening |
-
2008
- 2008-11-08 CN CNU200820146214XU patent/CN201306352Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261364A (en) * | 2011-06-07 | 2011-11-30 | 南通赛孚机械设备有限公司 | Bolt special for degassing tank access opening |
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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: 20090909 Termination date: 20121108 |