CN200952519Y - Double-thread bolt device - Google Patents
Double-thread bolt device Download PDFInfo
- Publication number
- CN200952519Y CN200952519Y CN 200620087437 CN200620087437U CN200952519Y CN 200952519 Y CN200952519 Y CN 200952519Y CN 200620087437 CN200620087437 CN 200620087437 CN 200620087437 U CN200620087437 U CN 200620087437U CN 200952519 Y CN200952519 Y CN 200952519Y
- Authority
- CN
- China
- Prior art keywords
- double
- thread
- threaded bolt
- start thread
- 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 relates to a double threaded bolt device and includes a screw, a thread, a head and a tail of the threaded bolt, the thread is double-line, and the inside section is trapezoid, and the thread is made by a special thread rolling, the double-line thread turns of the screw are 3-9 circles, the tail is tapered, the threaded bolt is characterized by higher penetration rate, higher adsorption force and pulling power, easier technology, low cost and easy mass production.
Description
Technical field
The utility model relates to a kind of new mechanical fastening piece, especially a kind of double-start thread pin device.
Technical background
The standard piece in present fastening field and non-tender are widely used in comprising building, machinery, and in the various fields of recent life, relate to a variety of products, as nut, bolt, self threading pin, or the like traditional product, all these almost become the material base of creating our life, the fastening piece that is widely used in purposes such as building at present is mainly plastic expansion and various metal material expansion gecko nail, as the bushing type gecko, car is repaiied gecko, inside and outside urgent gecko etc., wherein the plastic expansion bearing load is less, using scope is limited, and widely used expansion of metal all adopts composite structure, has plural part to combine, in the process of threaded together, finish and self expand and the combining closely of body of wall, reach the purpose of fastening or bearing load, certainly, along with era development needs, also can constantly require the new product of the new production needs of better adaptation or alternative to occur.Continuous development along with industry-by-industry, traditional product can not reach desirable effect or always not satisfactory fully aspect some, such as traditional self threading pin or gecko nail etc. are because its traditional tooth has determined the finiteness of its application area, as its adsorption force, operating process, many problems of improving and solving waited such as operation is consuming time.
Summary of the invention
The purpose of this utility model is to provide a kind of new special double-start thread bolt, this double-start thread bolt is suitable for various high-strength blending materials, its penetration rate is faster, and the adsorption force pulling force is stronger, stressed even event can be born bigger load, compares with conventional combination gecko nail, and its production technology is simpler, reduced cost of production thus, but the practical application effect improves greatly.
The purpose of this utility model is realized by following technological scheme, has developed a kind of double-start thread bolt.This threaded bolt screw thread is a two-wire, and the axial section shape inboard of this double-start thread is trapezoidal, and both sides are the triangle of similar regular screw threads, screw thread forms through special rolled thread, the pitch of threaded bolt is 10～41mm, and the double-start thread number of turns on the screw rod is 3～9 circles, and the threaded bolt afterbody is taper; Described threaded bolt head be shaped as hexagonal flange plate, interior hexagonal countersunk head, sheep eye, cross fluting countersunk head, hook-shaped; The pitch of thread of described double-start thread is 3～10mm, and height of thread is 0.63～2.7mm; The tapering of described threaded bolt afterbody taper is 30 degree.
The utility model has the advantages that: be suitable for various high-strength blending materials, penetration rate is faster, and the adsorption force pulling force is stronger, and is stressed even so can bear bigger load, compares with conventional combination gecko nail, its production technology is simpler, reduced cost of production, the practical application effect but improves greatly, and is time saving and energy saving, easy to use, suitable a large amount of production.
Description of drawings
Fig. 1 is the structural representation of double-start thread bolt;
Fig. 2 is a threaded bolt head schematic representation;
Specific embodiment
Develop a kind of double-start thread bolt referring to Fig. 1-Fig. 2 the utility model, taked following steps:
The screw thread 2 of this threaded bolt 1 is a two-wire, the axial section shape inboard of this double-start thread 2 is trapezoidal, and both sides are that the V thread screw of similar regular screw threads forms through special rolled thread, and the pitch 3 of threaded bolt 1 is 10～41mm, double-start thread 2 number of turns on the screw rod 4 are 3～9 circles, and threaded bolt afterbody 5 is taper; Described threaded bolt head 6 be shaped as hexagonal flange plate, interior hexagonal countersunk head, sheep eye, cross fluting countersunk head, hook-shaped; The pitch of thread of described double-start thread 2 is 3～10mm, and screw thread 2 degree of depth are that the tapering of described threaded bolt afterbody 5 tapers of 0.63～2.7mm is 30 degree.
Claims (4)
1, a kind of double-start thread pin device, form by screw rod, screw thread, threaded bolt head, threaded bolt afterbody, it is characterized in that screw thread is a two-wire, the axial section shape inboard of this double-start thread is trapezoidal, both sides are triangle, the pitch of threaded bolt is 10～41mm, and the double-start thread number of turns on the screw rod is 3～9 circles, and the threaded bolt afterbody is taper.
2, double-start thread pin device according to claim 1, what it is characterized in that described threaded bolt head is shaped as hexagonal flange plate, interior hexagonal countersunk head, sheep eye, cross fluting countersunk head, hook-shaped.
3, double-start thread pin device according to claim 1, the pitch of thread that it is characterized in that described double-start thread is 3～10mm, height of thread is 0.63～2.7mm.
4, double-start thread pin device according to claim 1, the tapering that it is characterized in that the taper of described threaded bolt afterbody are 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620087437 CN200952519Y (en) | 2006-07-29 | 2006-07-29 | Double-thread bolt device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620087437 CN200952519Y (en) | 2006-07-29 | 2006-07-29 | Double-thread bolt device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200952519Y true CN200952519Y (en) | 2007-09-26 |
Family
ID=38810821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620087437 Expired - Fee Related CN200952519Y (en) | 2006-07-29 | 2006-07-29 | Double-thread bolt device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200952519Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493993A (en) * | 2011-12-19 | 2012-06-13 | 吴江宏瑞精密机械厂 | Screw |
| CN110722224A (en) * | 2019-10-18 | 2020-01-24 | 北部湾大学 | Method for numerically controlling and repairing external threads with different leads by variable spindle rotation speed |
-
2006
- 2006-07-29 CN CN 200620087437 patent/CN200952519Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493993A (en) * | 2011-12-19 | 2012-06-13 | 吴江宏瑞精密机械厂 | Screw |
| CN110722224A (en) * | 2019-10-18 | 2020-01-24 | 北部湾大学 | Method for numerically controlling and repairing external threads with different leads by variable spindle rotation speed |
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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: 20070926 Termination date: 20090831 |