CN202597380U - Dodecagonal head bolt - Google Patents
Dodecagonal head bolt Download PDFInfo
- Publication number
- CN202597380U CN202597380U CN 201220116806 CN201220116806U CN202597380U CN 202597380 U CN202597380 U CN 202597380U CN 201220116806 CN201220116806 CN 201220116806 CN 201220116806 U CN201220116806 U CN 201220116806U CN 202597380 U CN202597380 U CN 202597380U
- Authority
- CN
- China
- Prior art keywords
- bolt
- head
- dodecagonal
- bolt head
- utility
- 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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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses a dodecagonal head bolt, belongs to a fastener and aims to provide a bolt which is conveniently clamped by a wrench in a multi-angle mode and can effectively prevent a thread from loosening. The dodecagonal head bolt comprises a bolt body consisting of a bolt head and a screw, wherein the shape of the bolt head (1) has a dodecagonal structure; a weight loss pit (4) is formed on the end face of the bolt head; the side face of the bolt head is provided with a plurality of weight loss holes (5); and a safe hole (3) is formed on the screw (2). The utility model has the advantages that the dodecagonal head bolt is simple in structure, convenient to use, reliable in self-locking performance and light in weight and is a bolt applied to the fields of automobiles, ships, aviation and the like.
Description
Technical field
The utility model relates to a kind of fastening piece, relates in particular to a kind of bolt.
Background technique:As everyone knows, bolt be machine building industry be used for two or more component connect, fixing a kind of fastening piece.Stubborn for the ease of pulling, bolt head is the hexagon head structure mostly; Yet because the restriction of mounting point, spanner just can't carry out effective clamping, tighten inconvenience later on turning over several angle bolt head again at some special occasions.In addition, under the high vibration effect, take place to become flexible for fear of bolt, employing increases the self-locking property that modes such as elastic washer, toothed washer improve bolt usually at present, but effect is unsatisfactory.Need a kind of bolt of being convenient to the clamping of spanner multi-angle, can preventing thread looseness badly.
Summary of the invention:In order to overcome the defective that exists in the existing technology, the utility model aims to provide a kind of bihexagonal head screw of being convenient to the clamping of spanner multi-angle, can effectively preventing thread looseness.
To achieve these goals, the utility model adopts following technological scheme: comprise the bolt body that is made up of bolt head and screw rod; The profile of bolt head is the dodecagon structure, and the side that is provided with a loss of weight pit, this bolt head at the end face of this bolt head is provided with a plurality of lightening holes, on screw rod, is provided with an insurance hole.
Compare with existing technology; The utility model is owing to adopted technique scheme; Therefore changed original hexagon head bolt head into the dodecagon structure, increased the angle of spanner clamping screw head, even if also can convenient wrench under the narrower and small situation of installing space to the clamping of bolt head.In addition, owing on screw rod, increased the insurance hole, therefore can prevent bolt falling through the construction opening pin, the accident potential that thoroughly avoided because of bolt looseness, comes off and bring.The utlity model has simple in structure, easy to use, self-locking property is reliable, advantage such as in light weight.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Among the figure: 3 loss of weight pits, 4 lightening holes 5 of bolt head 1 screw rod 2 insurance holes
Embodiment:Below in conjunction with accompanying drawing and concrete embodiment the utility model is described further:
As shown in Figure 1: bolt head 1 is connected as a single entity with screw rod 2, and the profile of bolt head 1 is the dodecagon structure, and screw rod 2 is provided with an insurance hole 3.In order to alleviate the weight of bolt, be provided with a loss of weight pit 4, be provided with four lightening holes 5 in the side of this bolt head at the end face of bolt head 1.
Claims (1)
1. a bihexagonal head screw comprises the bolt body that is made up of bolt head and screw rod; It is characterized in that: the profile of bolt head (1) is the dodecagon structure, and the side that is provided with a loss of weight pit (4), this bolt head at the end face of this bolt head is provided with a plurality of lightening holes (5), on screw rod (2), is provided with an insurance hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220116806 CN202597380U (en) | 2012-03-26 | 2012-03-26 | Dodecagonal head bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220116806 CN202597380U (en) | 2012-03-26 | 2012-03-26 | Dodecagonal head bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597380U true CN202597380U (en) | 2012-12-12 |
Family
ID=47314925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220116806 Expired - Fee Related CN202597380U (en) | 2012-03-26 | 2012-03-26 | Dodecagonal head bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597380U (en) |
-
2012
- 2012-03-26 CN CN 201220116806 patent/CN202597380U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20130326 |