CN2703913Y - Two-screwing screw - Google Patents
Two-screwing screw Download PDFInfo
- Publication number
- CN2703913Y CN2703913Y CN 200420064975 CN200420064975U CN2703913Y CN 2703913 Y CN2703913 Y CN 2703913Y CN 200420064975 CN200420064975 CN 200420064975 CN 200420064975 U CN200420064975 U CN 200420064975U CN 2703913 Y CN2703913 Y CN 2703913Y
- Authority
- CN
- China
- Prior art keywords
- screw
- derotation
- threads
- screw thread
- positive rotation
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a two-screwing screw, mainly including an including screw cap. Positive rotation threads and derotation threads are provided on the screw, and the diameter of the positive rotation thread is bigger than the diameter of the derotation thread. For positive rotation threads and the derotation threads, which are respectively cooperated with a positive rotation nut and a derotation nut when the utility model is used, are provided on the screw in the device. The positive rotation threads achieve the action of fixation, and the derotation threads achieve the action of avoiding loosening, which assures use safety.
Description
Technical field
The utility model relates to a kind of screw, and particularly a kind of have the Two-screwing screw that rotates and reverse screw thread simultaneously on screw.
Background technique
If on the common screw on machine the back have bigger vibration during machine works, screw can fluff after a period of time, brings certain hidden danger for the safe operation of machine, important equipment also needs regularly to check, has strengthened workload.
Summary of the invention
The purpose of this utility model provides a kind ofly can not unclamp safe and reliable Two-screwing screw automatically.
The purpose of this utility model is achieved in that a kind of Two-screwing screw, comprises nut 1, and screw 2 is provided with dextrorotation screw thread 3 and derotation screw thread 4.The diameter of dextrorotation screw thread 3 is greater than the diameter of derotation screw thread 4.
Two-screwing screw provided by the utility model, owing on screw 2, be provided with dextrorotation screw thread and derotation screw thread, match with positive spin nut and derotation nut respectively during use, the dextrorotation screw thread plays fixing effect, the derotation screw thread plays the effect of becoming flexible of preventing, has guaranteed safe in utilization.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model adopts following structure: a kind of Two-screwing screw, comprise nut 1, and screw 2 is provided with dextrorotation screw thread 3 and derotation screw thread 4.The diameter of dextrorotation screw thread 3 is greater than the diameter of derotation screw thread 4.
When this device uses, earlier positive spin nut is rotated on the dextrorotation screw thread 3, the derotation nut is rotated on the derotation screw thread 4 can plays fixing effect then.
The diameter of dextrorotation screw thread 3 is for positive spin nut can be inserted in easily greater than the diameter of derotation screw thread 4.
Claims (2)
1, a kind of Two-screwing screw comprises nut (1), it is characterized in that: screw (2) is provided with dextrorotation screw thread (3) and derotation screw thread (4).
2, Two-screwing screw according to claim 1 is characterized in that: the diameter of dextrorotation screw thread (3) is greater than the diameter of derotation screw thread (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064975 CN2703913Y (en) | 2004-06-16 | 2004-06-16 | Two-screwing screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064975 CN2703913Y (en) | 2004-06-16 | 2004-06-16 | Two-screwing screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2703913Y true CN2703913Y (en) | 2005-06-08 |
Family
ID=34777645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420064975 Expired - Fee Related CN2703913Y (en) | 2004-06-16 | 2004-06-16 | Two-screwing screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2703913Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011784A (en) * | 2010-11-23 | 2011-04-13 | 北京北方专用车新技术发展有限公司 | Anti-loosing and locking method of bolt and nut with left and right-hand threads |
| CN103867550A (en) * | 2012-12-11 | 2014-06-18 | 王昇辉 | Locking device capable of not loosening main shaft and nuts |
| CN103990843A (en) * | 2014-05-13 | 2014-08-20 | 繁昌县金科机电科技有限公司 | Knife rest |
| CN105090210A (en) * | 2015-09-02 | 2015-11-25 | 无锡市东赫金属制品有限公司 | Double-rotation-direction bolt |
| CN107413947A (en) * | 2015-08-12 | 2017-12-01 | 重庆市合川区均恒金属加工厂 | Combined impact pressing mold |
-
2004
- 2004-06-16 CN CN 200420064975 patent/CN2703913Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011784A (en) * | 2010-11-23 | 2011-04-13 | 北京北方专用车新技术发展有限公司 | Anti-loosing and locking method of bolt and nut with left and right-hand threads |
| CN103867550A (en) * | 2012-12-11 | 2014-06-18 | 王昇辉 | Locking device capable of not loosening main shaft and nuts |
| CN103867550B (en) * | 2012-12-11 | 2016-03-30 | 王昇辉 | Main shaft and nut do not get loose lockup device |
| CN103990843A (en) * | 2014-05-13 | 2014-08-20 | 繁昌县金科机电科技有限公司 | Knife rest |
| CN107413947A (en) * | 2015-08-12 | 2017-12-01 | 重庆市合川区均恒金属加工厂 | Combined impact pressing mold |
| CN107413947B (en) * | 2015-08-12 | 2019-06-07 | 重庆市合川区均恒金属加工厂 | Combined impact pressing mold |
| CN105090210A (en) * | 2015-09-02 | 2015-11-25 | 无锡市东赫金属制品有限公司 | Double-rotation-direction bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |