CN204082848U - A kind of self-tightening screw - Google Patents
A kind of self-tightening screw Download PDFInfo
- Publication number
- CN204082848U CN204082848U CN201420391286.6U CN201420391286U CN204082848U CN 204082848 U CN204082848 U CN 204082848U CN 201420391286 U CN201420391286 U CN 201420391286U CN 204082848 U CN204082848 U CN 204082848U
- Authority
- CN
- China
- Prior art keywords
- screw
- tightening
- self
- bar
- lead 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
Links
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model provides a kind of self-tightening screw, comprises screw terminal, through hole, lead screw, screw thread, screw tail, and described screw terminal surface is drilled with through hole; Described lead screw is divided into tighten up a screw bar and lower lead screw; Bar cross-section of tightening up a screw is regular polygon; There is screw thread on lower lead screw surface; Described anti-loose structure is fixedly connected on tightens up a screw between bar and lower lead screw, and lower surface is provided with salient point; Described screw tail is three spiral empennages.
Description
Technical field
The utility model relates to a kind of securing means, especially a kind of self-tightening screw.
Background technique
Nowadays, screw has become part indispensable in modern's daily life, screw is applied in various electronic equipment by people usually, such as mobile phone, the electronic products such as notebook computer, aircraft, the components of machine such as automobile, railway, bridge, building waits the every aspect in life, but need to mate corresponding instrument in screw locking process in the past, as there is no suitable instrument, then screw cannot lock or unscrew, cannot lock, cause assembly each several part to be out of shape or bad connection, cannot unscrew, cause assembly to split and waste man-hour not in time, affect working efficiency.
Model utility content
Problem to be solved in the utility model is to provide a kind of self-tightening screw, and in prior art, screw is in locking or unscrew in process, as in advance prepared suitable instrument, then cannot locking nut, and cause assembly each several part to fix; Equally, if there is no suitable instrument, then cannot unscrew screw, cause assembly to split not in time.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of self-tightening screw, comprises screw terminal, through hole, lead screw, screw thread, screw tail, and described screw terminal surface is drilled with through hole; Described lead screw is divided into tighten up a screw bar and lower lead screw; Bar cross-section of tightening up a screw is that regular polygon is fixedly connected with screw terminal; There is screw thread on lower lead screw surface; Described anti-loose structure is fixedly connected on tightens up a screw between bar and lower lead screw.
Further, described through hole is circle, triangle, rectangle, hexagonal one, to adapt to difform lever.
Further, described in bar cross-section of tightening up a screw be regular polygon, spanner locking easy to use, unscrew screw.
Further, described anti-loose structure lower surface has several salient points, and this salient point increases the frictional force between screw and target element, and screw is combined more closely with target element.
Further, described screw tail is three spiral empennages.
The advantage that the utility model has and good effect are: when not having suitable locking, unscrewing instrument, locking that can be artificial, unscrew screw, this self-tightening screw can be locked by spanner etc., unscrew instrument carries out fastening, loosening operation, the salient point of anti-loose structure lower surface can increase the frictional force of screw and inter-module, and screw is combined more closely with inter-module.
Accompanying drawing explanation
Fig. 1 is the structural representation of self-tightening screw in the utility model;
Fig. 2 is the enlarged diagram of bar and lower lead screw jointing place of tightening up a screw in the utility model.
In figure: 1, screw terminal; 2, through hole; 3, to tighten up a screw bar; 4, anti-loose structure; 5, screw thread; 6, lower lead screw; 7, screw tail; 8, salient point.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of self-tightening screw, by screw terminal 1, through hole 2, bar 3 of tightening up a screw, anti-loose structure 4, screw thread 5, lower lead screw 6, screw tail 7, salient point 8 forms; Described screw terminal 1 surface is drilled with through hole 2 for regular hexagon, and cylindrical and cross-section can be facilitated to be the operation that regular hexagon instrument carries out locking and unscrewing, described in bar 3 cross-section of tightening up a screw be positive six prisms, the operation of locking and unscrewing can be carried out for spanner.
Embodiment 2
As shown in Figure 1 and Figure 2, a kind of self-tightening screw, by screw terminal 1, through hole 2, bar 3 of tightening up a screw, anti-loose structure 4, screw thread 5, lower lead screw 6, screw tail 7, salient point 8 forms; Described screw terminal 1 surface is drilled with through hole 2 for circular, and cylindrical and hex tool can be facilitated to carry out the operation of locking and unscrewing, described in bar 3 cross-section of tightening up a screw be four-prism, the operation of locking and unscrewing can be carried out for spanner.
Described lead screw 3 top is tri-prism, and spanner can be supplied to carry out the operation of locking and unscrewing.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model scope change and improve, and all should still belong within this patent covering scope.
Claims (5)
1. a self-tightening screw, comprises screw terminal, lead screw, screw tail, it is characterized in that: described screw terminal surface is provided with through hole; Described lead screw is divided into tighten up a screw bar and lower lead screw; Bar cross-section of tightening up a screw is regular polygon, and is fixedly connected with screw terminal; There is screw thread on lower lead screw surface; Tighten up a screw between bar and lower lead screw and be provided with anti-loose structure.
2. self-tightening screw according to claim 1, is characterized in that: the shape of described through hole is the one in circle, triangle, rectangle, hexagon.
3. self-tightening screw according to claim 1, is characterized in that: described in the tighten up a screw cross-section of bar be regular hexagon.
4. self-tightening screw according to claim 1, is characterized in that: described anti-loose structure is the annular bar protruded, and its lower surface establishes some salient points.
5. self-tightening screw according to claim 1, is characterized in that: described screw tail is three spiral empennages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420391286.6U CN204082848U (en) | 2014-07-15 | 2014-07-15 | A kind of self-tightening screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420391286.6U CN204082848U (en) | 2014-07-15 | 2014-07-15 | A kind of self-tightening screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082848U true CN204082848U (en) | 2015-01-07 |
Family
ID=52175571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420391286.6U Expired - Fee Related CN204082848U (en) | 2014-07-15 | 2014-07-15 | A kind of self-tightening screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082848U (en) |
-
2014
- 2014-07-15 CN CN201420391286.6U patent/CN204082848U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20150715 |
|
| EXPY | Termination of patent right or utility model |