CN2773380Y - Drill end screw - Google Patents
Drill end screw Download PDFInfo
- Publication number
- CN2773380Y CN2773380Y CN 200520055143 CN200520055143U CN2773380Y CN 2773380 Y CN2773380 Y CN 2773380Y CN 200520055143 CN200520055143 CN 200520055143 CN 200520055143 U CN200520055143 U CN 200520055143U CN 2773380 Y CN2773380 Y CN 2773380Y
- Authority
- CN
- China
- Prior art keywords
- self drilling
- utility
- model
- drilling screws
- screw
- 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 a self drilling screw which comprises a screw main body and two self drilling leaflets which are arranged at the end of the screw main body. At least one self drilling leaflet is provided with at least one micro groove. Because the self drilling screw of the utility model is provided with the micro groove in the tail end, the speed for the self drilling screw to drill a metallic plate is greatly improved. The utility model saves labor and has simple structure.
Description
Technical field
The utility model relates to a kind of screw, relates in particular to a kind of improvement of brill stern construction of SELF DRILLING SCREWS.
Background technique
SELF DRILLING SCREWS is a kind of fastening piece that is used for fixing sheet metal such as steel plate etc., its tail end 110 is for boring stern construction, shown in Fig. 1 and Fig. 1 a, this brill stern construction comprises the groove 111 of two oblique settings, the tail end that is arranged on described screw of symmetry, thus screw tail end end face is cut apart two lobe leaves 112 of formation.Owing to form these two lobe leaves 112, this screw just can be used for holing on sheet metal, but because some sheet metal is very hard, as steel plate, therefore cause the speed of existing SELF DRILLING SCREWS boring slow, more consuming time and effort in the process of boring.
Therefore, there is defective in prior art, awaits improving and development.
The model utility content
The purpose of this utility model is to provide a kind of SELF DRILLING SCREWS, by improve boring stern construction, overcomes prior art slow defective of penetration rate at than the hard metal plate time, and a kind of penetration rate SELF DRILLING SCREWS faster is provided.
The technical solution of the utility model is as follows:
A kind of SELF DRILLING SCREWS, it comprises a screw body; And two bore the back lobe leaf, is arranged on the tail end of described screw body, and wherein, at least one described brill back lobe leaf is provided with at least one micro groove.
Described SELF DRILLING SCREWS wherein, is respectively arranged with micro groove on the described brill back lobe leaf.
A kind of SELF DRILLING SCREWS provided by the utility model owing at tail end one micro groove structure is set, greatly improves SELF DRILLING SCREWS speed when sheet metal is holed, and is laborsaving and simple in structure.
Description of drawings
Fig. 1 is the schematic representation of the SELF DRILLING SCREWS of prior art;
Fig. 1 a is the enlarged diagram of the SELF DRILLING SCREWS of prior art shown in Figure 1;
Fig. 2 is the schematic representation of SELF DRILLING SCREWS of the present utility model.
Embodiment
Below preferred embodiment of the present utility model is described in detail.
Described SELF DRILLING SCREWS of the present utility model, as shown in Figure 2, the lobe leaf 112 of the brill tail of described SELF DRILLING SCREWS is provided with a micro groove 200 exactly, and this micro groove 200 can utilize die casting to form or form through punching press.It also can respectively be provided with a micro groove 200 on two lobe leaves of described brill tail, through evidence, this micro groove 200 can improve the SELF DRILLING SCREWS working efficiency in when work greatly, and is laborsaving and penetration rate is fast, and efficient can be enhanced about more than once.And the project organization of product of the present utility model is simple, and cost changes little.
It should be noted that the improvement of the brill stern construction of described SELF DRILLING SCREWS of the present utility model is can adopt on the nut of arbitrary form, can not limit the scope of asking for protection of the present utility model with illustrated form.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (2)
1, a kind of SELF DRILLING SCREWS, it comprises a screw body; And two bore the back lobe leaf, is arranged on the tail end of described screw body, it is characterized in that at least one described brill back lobe leaf is provided with at least one micro groove.
2, SELF DRILLING SCREWS according to claim 1 is characterized in that, is respectively arranged with micro groove on the described brill back lobe leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055143 CN2773380Y (en) | 2005-02-24 | 2005-02-24 | Drill end screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055143 CN2773380Y (en) | 2005-02-24 | 2005-02-24 | Drill end screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2773380Y true CN2773380Y (en) | 2006-04-19 |
Family
ID=36708644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520055143 Expired - Fee Related CN2773380Y (en) | 2005-02-24 | 2005-02-24 | Drill end screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2773380Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083634A1 (en) * | 2009-01-22 | 2010-07-29 | 三友璟工业有限公司 | Self-drilling screw |
| CN102847847A (en) * | 2011-06-30 | 2013-01-02 | 冯一鸣 | Manufacturing method of self-drilling screw |
| CN103016486A (en) * | 2011-09-26 | 2013-04-03 | 宏颖企业股份有限公司 | Self drilling screw structure |
-
2005
- 2005-02-24 CN CN 200520055143 patent/CN2773380Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083634A1 (en) * | 2009-01-22 | 2010-07-29 | 三友璟工业有限公司 | Self-drilling screw |
| CN102847847A (en) * | 2011-06-30 | 2013-01-02 | 冯一鸣 | Manufacturing method of self-drilling screw |
| CN103016486A (en) * | 2011-09-26 | 2013-04-03 | 宏颖企业股份有限公司 | Self drilling screw structure |
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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: 20060419 Termination date: 20100224 |