CN201358990Y - Screw nut - Google Patents
Screw nut Download PDFInfo
- Publication number
- CN201358990Y CN201358990Y CNU2009200687884U CN200920068788U CN201358990Y CN 201358990 Y CN201358990 Y CN 201358990Y CN U2009200687884 U CNU2009200687884 U CN U2009200687884U CN 200920068788 U CN200920068788 U CN 200920068788U CN 201358990 Y CN201358990 Y CN 201358990Y
- Authority
- CN
- China
- Prior art keywords
- nut
- screw nut
- edges
- utility
- seamed
- 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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- Lock And Its Accessories (AREA)
Abstract
The utility model discloses a screw nut. A screw hole is formed in the center of the screw nut; and a plurality of edges are formed on the periphery of the screw hole, wherein the length of at lease one edge is different from that of the other edges. Components are fixed on a bicycle through the screw nut; and because of the unsymmetrical arrangement of the edges, the components can be disassembled only by a wrench with a wrench opening corresponding to the shape of the screw nut, and a common universal wrench cannot achieve the effect, thereby greatly increasing the disassembly difficulty and reducing the possibility of single component being stolen.
Description
Technical field
The utility model relates to a kind of nut, refers to a kind of nut that is installed on the bicycle especially.
Background technique
In current society, in order to alleviate traffic pressure, advocate environmental protection and natural traffic environment, bring bicycle into public transportation system, thereby in each crucial location, terrestrial reference perfect Cycle Hire network being set and solving " last kilometer " traffic problems, is efficient ways by the checking of increasing city.By this kind mode, the user can select nearest lease point to lease bicycle, behind the destination of riding, bicycle given back near the lease point this destination get final product, and bicycle is given back the back and is locked mutually by a snap close on the car and the lock that the lease point is provided with.
How antitheft this kind lease bicycle is locked in the lease point in time spent not by lock, therefore become an important problem.Prevent that car load from preventing that single component are stolen stolen also comprising so-called antitheft promptly comprising because the science setting of lock, excellent prevention the stolen situation of car load take place; But at present the single parts on the bicycle be mostly by general bolts and nuts connect with car load on, so need promptly can easily back out, increased the antitheft difficulty of single part greatly by general spanner.Therefore need a kind of new link really, to prevent the stolen of single parts.
Summary of the invention
Technical problem to be solved in the utility model is for providing a kind of new nut, and this kind nut only can prevent the stolen of single bicycle assembly parts thereby increased the difficulty of dismantling parts by could being backed out with its specific spanner that cooperates.
For solving the problems of the technologies described above, the utility model provides a kind of nut, and this nut center offers a screw hole, and periphery is formed with a plurality of seamed edges, wherein, has at least one length to be different from other seamed edges in the described seamed edge.
By above-mentioned nut parts are fixed on the bicycle, because the asymmetry setting of its seamed edge, have only by having and to dismantle these parts with the corresponding spanner of pulling the hole of this nut shape, and general Allen wrench is difficult to accomplish, increase the dismounting difficulty greatly, reduced the stolen possibility of single parts.
Further improvement of the utility model is that described nut is a pentagon nut, and periphery is formed with five seamed edges; The ratio of the length of side of five seamed edges of described pentagon nut was respectively 1.13: 1.06: 1: 1.06: 1.13; Also can be hexagon nut, periphery is formed with six seamed edges.
Description of drawings
Fig. 1 is the structural representation of first preferred embodiment of the utility model nut;
Fig. 2 is the structural representation of second preferred embodiment of the utility model nut;
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, nut of the present utility model comprises a nut body 10, and 10 one-tenth one pentagons of described nut body are formed with five seamed edges 11,12,13,14,15 respectively in its periphery, and this nut center offers a screw hole 16; Article five, seamed edge 11,12,13,14,15 is asymmetric setting, wherein has at least the length of a seamed edge different with other seamed edges, wherein, and seamed edge 11: seamed edge 12: seamed edge 13: seamed edge 14: seamed edge 15=1.13: 1.06: 1: 1.06: 1.13; As preferred embodiment of the present utility model, the length of each bar seamed edge is respectively 10.67mm, 10.00mm, 9.45mm, 10.00mm, 10.67mm.By the non-symmetry structure design of this kind nut, have only by have the identical shaped spanner of pulling the hole with it and just can pull, and can not be sleeved on this kind nut, thereby the difficulty that has increased dismounting has greatly prevented stolen possibility by existing Allen wrench.
As shown in Figure 2, shown the structural representation of second preferred embodiment of the utility model nut, described nut body 30 can be arranged to a hexagon equally, and wherein six seamed edges also are non-being symmetrical arranged.
Therefore, the seamed edge that this kind nut needs only it is provided with asymmetry, can expand its seamed edge number as required arbitrarily, just can pull this kind nut and have only by having the identical shaped specific spanner of pulling the hole, greatly reduces the stolen possibility of single parts.
Claims (4)
1. nut, this nut center offers a screw hole, and periphery is formed with a plurality of seamed edges, it is characterized in that having at least one length to be different from other seamed edges in the described seamed edge.
2. nut as claimed in claim 1 is characterized in that, described nut is a pentagon nut, and periphery is formed with five seamed edges.
3. nut as claimed in claim 1 is characterized in that, described nut is a hexagon nut, and periphery is formed with six seamed edges.
4. nut as claimed in claim 2 is characterized in that, the ratio of the length of side of five seamed edges of described pentagon nut was respectively 1.13: 1.06: 1: 1.06: 1.13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200687884U CN201358990Y (en) | 2009-03-13 | 2009-03-13 | Screw nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200687884U CN201358990Y (en) | 2009-03-13 | 2009-03-13 | Screw nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201358990Y true CN201358990Y (en) | 2009-12-09 |
Family
ID=41424753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200687884U Expired - Fee Related CN201358990Y (en) | 2009-03-13 | 2009-03-13 | Screw nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201358990Y (en) |
-
2009
- 2009-03-13 CN CNU2009200687884U patent/CN201358990Y/en not_active Expired - Fee Related
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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: 20091209 Termination date: 20140313 |