CN201013719Y - Self-tightening type anti-drop anti-theft screw - Google Patents
Self-tightening type anti-drop anti-theft screw Download PDFInfo
- Publication number
- CN201013719Y CN201013719Y CNU2007201395085U CN200720139508U CN201013719Y CN 201013719 Y CN201013719 Y CN 201013719Y CN U2007201395085 U CNU2007201395085 U CN U2007201395085U CN 200720139508 U CN200720139508 U CN 200720139508U CN 201013719 Y CN201013719 Y CN 201013719Y
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- self
- tightening
- nut
- screw rod
- cap
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- Expired - Fee Related
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Abstract
The utility model relates to a self-tightening anti-loose antitheft screw which is to solve the problem that the existing screw and nut are prone to loose and fall, and is characterized in that a tightening rod(3) direction of thread of which is contrary to that on the upper part of the screw rod(1) is arranged on the end of the screw rod(1), the diameter of the tightening rod(3) is smaller than that of the screw rod, a spare nut(4) is screwed on the tightening rod(3), the dimensions of the spare nut are the same to that of the nut(2), and the spare nut(4) and the nut are put in a self-tightening sleeve(5). The self-tightening anti-loose antitheft does not loose, can self-tighten under vibration, is simple in structure, is safe and antitheft, and can be reused to reduce the use cost.
Description
Technical field:
The utility model relates to a kind of fastening connection piece, especially self tightening anticreep anti-theft screw.
Background technique:
Bolt and nut is a kind of fastening connection piece of using always, it be widely used in industry-by-industry, as lathe, track and various machinery.Existing bolt and nut link generally be adopt carry out behind the spring washer pretension locking, long-time use rear spring packing ring lost efficacy and followed the string, and under the effect of vibration force, nut easily becomes flexible even comes off, the so just regular procuratorial work of needs influences vehicle or equipment normally moves.
The model utility content:
In order to overcome the deficiency that existing bolt and nut is easily loosening even come off, the utility model provides a kind of self tightening anticreep anti-theft screw, this self tightening anticreep anti-theft screw can not become flexible, can auto lock when being vibrated, have simple in structure and safe and reliable characteristics.
The technical solution of the utility model is: this self tightening anticreep anti-theft screw comprises self-tightening cover, screw rod and nut, the termination of screw rod has and the opposite check lock lever of screw rod top thread rotary orientation, the diameter of check lock lever is less than screw diameter, be rotary with cap fully on the check lock lever, the outer contour shape of cap and nut and measure-alike is equipped with cap and nut and places in the self-tightening cover fully.
Above-mentioned cap fully and nut are outer hexagonal shaped; Being equipped with cap is 2; Screw rod is a right-handed thread, and check lock lever is a left-handed thread; Self-tightening cover 5 is interior hexagonal shaped; Self-tightening cover 5 is outer hexagonal shaped; Self-tightening cover 5 is an outer ring.
The utlity model has following beneficial effect: owing to take such scheme, when producing the trend of becoming flexible under the effect of nut in vibration force, driving the self-tightening cover rotates, the cap that is equipped with in the self-tightening cover then rotates to fastening direction, has effectively avoided nut loosening, all right auto lock nut under the effect of vibration force, simple in structure, safe antitheft, owing to can reuse, thereby reduce cost.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-screw rod among the figure, the 2-nut, the 3-check lock lever, 4-is equipped with cap, 5-self-tightening cover.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this self tightening anticreep anti-theft screw comprises screw rod 1 and nut 2, and the termination of screw rod 1 has and the opposite check lock lever 3 of screw rod 1 top thread rotary orientation, and screw rod 1 is a right-handed thread, and check lock lever 3 is a left-handed thread.The diameter of check lock lever 3 is less than screw rod 1 diameter, is rotary with 2 on the check lock lever 3 and is equipped with caps 4, is equipped with the outer contour shape of cap 4 and nut 2 and measure-alike, and being equipped with cap 4 be outer hexagonal shaped with nut 2, is equipped with cap 4 and places self-tightening to overlap in 5 with nut 2.
During actual the use, when producing the trend of becoming flexible under the effect of nut 2 in vibration force, driving self-tightening cover 5 rotates, 4 on cap fully in the self-tightening cover 5 can only be to nut 2 fastening directions rotations under the left-hand thread threaded function, effectively avoided nut 2 loosening, all right auto lock nut 2 is simple in structure, safe and reliable under the effect of vibration force; Self-tightening cover 5 reaches fully with nut 2, and cap 4 is an interference fit, under the situation that no extraneous special tool is supported, can't dismantle screw, so the utlity model has excellent antitheft function, in addition, because this model utility in use can be carried out complete dismounting by special tool, both can reuse, thereby reach the purpose of saving cost.
Claims (7)
1. self tightening anticreep anti-theft screw, comprise screw rod (1) and nut (2), it is characterized in that: the termination of screw rod (1) has and the opposite check lock lever (3) of screw rod (1) top thread rotary orientation, the diameter of check lock lever (3) is less than screw rod (1) diameter, be rotary with cap (4) fully on the check lock lever (3), the outer contour shape of cap (4) and nut (2) and measure-alike is equipped with cap (4) and places in the self-tightening cover (5) with nut (2) fully.
2. self tightening anticreep anti-theft screw according to claim 1 is characterized in that: being equipped with cap (4) is outer hexagonal shaped with nut (2).
3. self tightening anticreep anti-theft screw according to claim 1 is characterized in that: being equipped with cap (4) is 2.
4. self tightening anticreep anti-theft screw according to claim 1 is characterized in that: screw rod (1) is a right-handed thread, and check lock lever (3) is a left-handed thread.
5. self tightening anticreep anti-theft screw according to claim 1 is characterized in that: self-tightening cover (5) is interior hexagonal shaped.
6. self tightening anticreep anti-theft screw according to claim 1 is characterized in that: self-tightening cover (5) is outer hexagonal shaped.
7. self tightening anticreep anti-theft screw according to claim 1 is characterized in that: self-tightening cover (5) is an outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201395085U CN201013719Y (en) | 2007-02-14 | 2007-02-14 | Self-tightening type anti-drop anti-theft screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201395085U CN201013719Y (en) | 2007-02-14 | 2007-02-14 | Self-tightening type anti-drop anti-theft screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201013719Y true CN201013719Y (en) | 2008-01-30 |
Family
ID=39025508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201395085U Expired - Fee Related CN201013719Y (en) | 2007-02-14 | 2007-02-14 | Self-tightening type anti-drop anti-theft screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201013719Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047244A (en) * | 2011-10-12 | 2013-04-17 | 杨凤亭 | Anti-looseness screw |
| CN104847654A (en) * | 2015-06-03 | 2015-08-19 | 马鞍山聚力科技有限公司 | S-pipe distributing valve with replaceable wearable layer |
| CN104846861A (en) * | 2015-06-03 | 2015-08-19 | 马鞍山聚力科技有限公司 | Multistage nut locking device for digging bucket |
| CN105041828A (en) * | 2015-06-03 | 2015-11-11 | 马鞍山聚力科技有限公司 | Multi-stage nut loosening preventing device for oil pumping unit crank pin |
| CN105889286A (en) * | 2016-07-01 | 2016-08-24 | 国网辽宁省电力有限公司盘锦供电公司 | Anti-theft and anti-vibration screw thread pair structure |
| CN108138829A (en) * | 2015-08-17 | 2018-06-08 | 韦尔休尔科技有限公司 | For the lock nut structure of thread spindle to be adjusted |
| CN110388367A (en) * | 2018-04-19 | 2019-10-29 | 李瑛� | A kind of novel not Unscrewed screw |
| CN113586310A (en) * | 2021-07-13 | 2021-11-02 | 大唐水电科学技术研究院有限公司 | Large-scale removable fraction bucket runner |
| CN115013406A (en) * | 2021-03-03 | 2022-09-06 | 俞桂凤 | Bolt assembly capable of not loosening |
-
2007
- 2007-02-14 CN CNU2007201395085U patent/CN201013719Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047244A (en) * | 2011-10-12 | 2013-04-17 | 杨凤亭 | Anti-looseness screw |
| CN104847654A (en) * | 2015-06-03 | 2015-08-19 | 马鞍山聚力科技有限公司 | S-pipe distributing valve with replaceable wearable layer |
| CN104846861A (en) * | 2015-06-03 | 2015-08-19 | 马鞍山聚力科技有限公司 | Multistage nut locking device for digging bucket |
| CN105041828A (en) * | 2015-06-03 | 2015-11-11 | 马鞍山聚力科技有限公司 | Multi-stage nut loosening preventing device for oil pumping unit crank pin |
| CN108138829A (en) * | 2015-08-17 | 2018-06-08 | 韦尔休尔科技有限公司 | For the lock nut structure of thread spindle to be adjusted |
| CN105889286A (en) * | 2016-07-01 | 2016-08-24 | 国网辽宁省电力有限公司盘锦供电公司 | Anti-theft and anti-vibration screw thread pair structure |
| CN110388367A (en) * | 2018-04-19 | 2019-10-29 | 李瑛� | A kind of novel not Unscrewed screw |
| CN115013406A (en) * | 2021-03-03 | 2022-09-06 | 俞桂凤 | Bolt assembly capable of not loosening |
| CN113586310A (en) * | 2021-07-13 | 2021-11-02 | 大唐水电科学技术研究院有限公司 | Large-scale removable fraction bucket runner |
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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: 20080130 Termination date: 20100214 |