CN201461668U - Screw - Google Patents
Screw Download PDFInfo
- Publication number
- CN201461668U CN201461668U CN2009201203205U CN200920120320U CN201461668U CN 201461668 U CN201461668 U CN 201461668U CN 2009201203205 U CN2009201203205 U CN 2009201203205U CN 200920120320 U CN200920120320 U CN 200920120320U CN 201461668 U CN201461668 U CN 201461668U
- Authority
- CN
- China
- Prior art keywords
- screw
- plane
- angle
- thread
- groove
- 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
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- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The utility model relates to a screw, which comprises a screw body and a tail part, wherein the screw body is provided with threads, the crest of the threads forms a line, and the root of the threads is provided with a groove. The use method of the utility model is the same as that of the existing screw. The utility model has the advantages that because the crest of the threads forms a line which is similar to an edge, the occlusion between connected parts is more compact and tighter after the screw is screwed into the connected parts, and the crest has a cutting function in the tapping process with high tapping speed and smoothness; and further, when the root of the threads is provided the groove, the groove can further play a locking role, and the connection between the screw and the connected part is further solidified.
Description
(1) technical field
The utility model relates to a kind of screw.
(2) background technique
Known screw comprises screw body and afterbody, screw body is provided with screw thread, but the tip of thread of the screw thread of existing screw is a plane, because tip of thread is a plane, therefore screw thread is bigger with the surface of contact that pierces between the hole, thereby therefore pierces afterwards and the interlock defective tightness between the connected piece; And it is slower that screw tip of thread in shooting process does not have shear action therefore to shoot speed, causes having some setbacks of shooting again easily.
(3) summary of the invention
In order to overcome the above-mentioned deficiency of existing screw, the utility model provides a kind of more firm, faster screw more smoothly of the speed of shooting of interlock between back and the connected piece of shooting.
The technical scheme in the invention for solving the technical problem is: a kind of screw, comprise screw body and afterbody, and described screw body is provided with screw thread, and the tip of thread of described screw thread is lines.
Further, the Bottom of Thread of described screw thread is provided with groove.
Further, the angle of the tooth form of described screw thread is 20 °～70 °, most preferably is 30 °.
The utility model also has following additional technical feature:
The sectional shape of described groove on the axial direction of screw body is: comprise a plane, the two ends on this plane extend upward the tooth form connection inclined for described screw thread.
Angle between described two inclined-planes and the described plane is the obtuse angle.
The screw on described plane is shot the inclined-plane of direction one side and the angle between the described plane greater than the angle between another inclined-plane and the described plane.
The screw on described plane is shot the length on inclined-plane of direction one side less than the length on another inclined-plane.
Angle between described two inclined-planes is 130 °～160 °, and the angle between most preferred described two inclined-planes is 145 °.
Using method of the present utility model is identical with the using method of existing screw, does not repeat them here.
The beneficial effects of the utility model are: 1. because the tip of thread of screw thread is lines, be similar to a blade, so screw to pierce behind the connected piece interlock between the connected piece compact more, closely.And tip of thread has shear action in shooting process, shoots to speed up, and shoots smooth and easy.2. further, when the Bottom of Thread of screw thread was provided with groove, groove can further play lock function, and being connected between screw and the connected piece more further obtains consolidating.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 be among Fig. 1 A-A to sectional view.
(5) embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to Fig. 1, a kind of screw comprises screw body 1 and afterbody 2, and described screw body 1 is provided with screw thread, and the tip of thread 3 of described screw thread is lines.The angle of the tooth form of described screw thread is preferably 20 °～70 °, and in the present embodiment, the angle of the tooth form of screw thread is 30 °.
Because the tip of thread 3 of screw thread is lines, is similar to a blade, thus screw to pierce behind the connected piece interlock between the connected piece compact more, closely.And tip of thread 3 has shear action in shooting process, shoots to speed up, and shoots smooth and easy.
With reference to Fig. 2, the Bottom of Thread of described screw thread is provided with groove 4.The shape of groove 4 is preferably: the sectional shape of described groove on the axial direction of screw body 1 is: comprise a plane 5, the two ends on this plane 5 extend upward the tooth form connection inclined for described screw thread, angle between two inclined-planes and the described plane 5 is the obtuse angle, the screw on described plane is shot the inclined-plane 6 of direction one side and the angle between the described plane 5 greater than the angle between another inclined-plane 7 and the described plane 5, angle between two inclined-planes is preferably 130 °～160 °, angle in the present embodiment between two inclined-planes is preferably 145 °, be that inclined-plane 6 and the angle between the plane 5 that the screw on plane is shot direction one side is 165 °, the angle between another inclined-plane 7 and the plane 5 is 160 °.The screw on described plane is shot the length on inclined-plane 6 of direction one side less than the length on another inclined-plane 7.When the Bottom of Thread of screw thread was provided with groove 4, groove 4 can further play lock function, more further obtained being connected between screw and the connected piece consolidating, and adopted the shape of above-mentioned groove, can realize the best effect that is connected between screw and the connected piece.
Claims (10)
1. a screw comprises screw body and afterbody, and described screw body is provided with screw thread, it is characterized in that: the tip of thread of described screw thread is lines.
2. screw as claimed in claim 1 is characterized in that: the Bottom of Thread of described screw thread is provided with groove.
3. screw as claimed in claim 1 or 2 is characterized in that: the angle of the tooth form of described screw thread is 20 °～70 °.
4. screw as claimed in claim 3 is characterized in that: the angle of the tooth form of described screw thread is 30 °.
5. screw as claimed in claim 2 is characterized in that: the sectional shape of described groove on the axial direction of screw body is: comprise a plane, the two ends on this plane extend upward the tooth form connection inclined for described screw thread.
6. screw as claimed in claim 5 is characterized in that: the angle between described two inclined-planes and the described plane is the obtuse angle.
7. screw as claimed in claim 6 is characterized in that: the screw on described plane is shot the inclined-plane of direction one side and the angle between the described plane greater than the angle between another inclined-plane and the described plane.
8. as claim 5 or 6 described screws, it is characterized in that: the screw on described plane is shot the length on inclined-plane of direction one side less than the length on another inclined-plane.
9. as claim 5 or 6 described screws, it is characterized in that: the angle between described two inclined-planes is 130 °～160 °.
10. as claim 5 or 6 described screws, it is characterized in that: the angle between described two inclined-planes is 145 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201203205U CN201461668U (en) | 2009-05-14 | 2009-05-14 | Screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201203205U CN201461668U (en) | 2009-05-14 | 2009-05-14 | Screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461668U true CN201461668U (en) | 2010-05-12 |
Family
ID=42389021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201203205U Expired - Fee Related CN201461668U (en) | 2009-05-14 | 2009-05-14 | Screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853020A (en) * | 2020-07-23 | 2020-10-30 | 浙江明泰控股发展股份有限公司 | Self-tapping screw quickly installed on plastic part and machining device of self-tapping screw |
-
2009
- 2009-05-14 CN CN2009201203205U patent/CN201461668U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111853020A (en) * | 2020-07-23 | 2020-10-30 | 浙江明泰控股发展股份有限公司 | Self-tapping screw quickly installed on plastic part and machining device of self-tapping screw |
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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: 20100512 Termination date: 20130514 |