CN2918841Y - Anti-theft cap nut - Google Patents
Anti-theft cap nut Download PDFInfo
- Publication number
- CN2918841Y CN2918841Y CN 200620024980 CN200620024980U CN2918841Y CN 2918841 Y CN2918841 Y CN 2918841Y CN 200620024980 CN200620024980 CN 200620024980 CN 200620024980 U CN200620024980 U CN 200620024980U CN 2918841 Y CN2918841 Y CN 2918841Y
- Authority
- CN
- China
- Prior art keywords
- nut
- parent
- notch
- fixed cover
- 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
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- Burglar Alarm Systems (AREA)
Abstract
The utility model belongs to nut technical field and discloses an anti-theft nut, which is mainly characterized in that the utility model comprises a nut body with smooth inner walls, at least one notch with a built-in thread-off preventer is arranged on the nut body, wherein the end of the thread-off preventer close to the notch is connected with a spring, while the other end far away from the notch has certain gradient. A fixing sleeve with thread on the inner wall is arranged inside the nut body. At least one dented groove is arranged on the outer wall of the fixing sleeve corresponding to the position of the thread-off preventer. One side of the dented groove in accordance with the precession direction of the nut body is flat, while the other side in accordance with the removal direction of the nut body has a slope, the gradient of the dented groove slope is matched with that of the thread-off preventer end far away from the notch. The utility model provides an anti-theft nut composed of a nut body and a fixing sleeve, when in use, the nut can only procession and can be removed only by destroying the nut wholly. Thus the utility model is excellent against theft.
Description
Technical field
The utility model belongs to the nut technical field, particularly a kind of anti-theft nut.
Background technique
When outdoor facilities such as installation transformer, need to adopt bolt and nut to connect it is fixed.Offender for facilities such as desire theft transformers can back out nut with spanner, and therefore common bolt and nut attachment security performance is very poor.For antitheft, people have installed burglarproof lock on facilities such as transformer, though played antitheft effect, cost increases greatly.
The model utility content
The technical problem that the utility model solves just provides the anti-theft nut that a kind of cost is low, be difficult for backing out.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: comprise parent, the inner wall smooth of described parent also has the notch that at least one is built-in with anti-drop block, the nearly notch end of anti-drop block is connected with spring, notch end far away has certain slope, be provided with the fixed cover that inwall is a screw thread in the described parent, the fixed cover outer wall have at least one groove with matching part, anti-drop block position, a side consistent with parent precession direction of groove is the plane, a side consistent with parent back-out direction of groove is domatic, and the gradient of the gradient that groove is domatic and anti-drop block notch end far away is complementary.
Its additional technical feature is: an outer end of described parent inwall is provided with first bulge loop, the fixed cover outer wall be provided with second bulge loop with matching part, the first bulge loop position; Lining one end that leans on of described fixed cover outer wall is provided with the 3rd bulge loop.
Anti-theft nut provided by the utility model is compared with prior art and is had the following advantages: one, with nut two body settings, one end is set in the notch of parent inwall is connected with the anti-drop block that spring, the other end have certain slope, when the precession parent, anti-drop block contacts with the plane of fixed cover outer wall groove, and the common precession of parent and fixed cover is until locking.When screwing out parent, domatic the contacting of anti-drop block and fixed cover outer wall groove, because the gradient that groove is domatic and the gradient of anti-drop block notch end far away are complementary, anti-drop block was along domatic slip of groove and pressure spring when parent rotated, the anti-drop block of this moment does not have Point of Strength, can only rotate between parent and fixed cover but can not screw out, thereby nut can not unload.Because this nut can only can not screw out in precession,, can only carry out integral body to nut and destroy, thereby can play good antitheft effect if want to unload; Its two, the parent inwall is provided with first bulge loop, the fixed cover outer wall is provided with second bulge loop, after nut check, is two bodies though see nut from the outside, but can not destroy, and makes that the nut Security is higher; Its three, the fixed cover outer wall is provided with the 3rd bulge loop, makes nut whole tight, steadiness improves.
Description of drawings
Fig. 1 is the longitudinal section view of anti-theft nut provided by the utility model;
Fig. 2 is the axial, cross-sectional view of anti-theft nut.
Embodiment
Be described in further details below in conjunction with the structure and the use principle of accompanying drawing anti-theft nut provided by the utility model.
As shown in Figure 1, the utility model anti-theft nut comprises the parent 1 of inner wall smooth, parent 1 inwall has at least one notch 2, be provided with anti-drop block 3 in the notch 2, the nearly notch end 31 of anti-drop block 3 is connected with spring 4, notch end 32 far away has certain slope, being provided with inwall in parent 1 is the fixed cover 5 of screw thread, fixed cover 5 outer walls have at least one groove 6 with matching part, anti-drop block 3 position, a side consistent with parent 1 precession direction of groove 6 is plane 61, groove 6 to screw out the consistent side of direction with parent 1 be domatic 62, the gradient of the gradient of groove domatic 62 and anti-drop block notch end 32 far away is complementary.As shown in Figure 2, an outer end of parent 1 inwall is provided with first bulge loop 7, fixed cover 5 outer walls be provided with second bulge loop 8 with matching part, first bulge loop, 7 position, fixed cover 5 outer walls be provided with the 3rd bulge loop 9 by lining one end.
In use, when precession parent 1, anti-drop block 3 contacts with the plane 61 of fixed cover 5 outer wall grooves 6, and parent 1 and fixed cover 5 common precessions are until locking.When screwing out parent 1, anti-drop block 3 contacts with domatic 62 of the outer 5 wall grooves 6 of fixed cover, because the gradient of groove domatic 62 and the gradient of anti-drop block notch end 32 far away are complementary, anti-drop block 3 slided and pressure spring 4 along groove domatic 62 when parent 1 rotated, the anti-drop block 3 of this moment does not have Point of Strength, 5 of parent 1 and fixed covers can only rotate but can not screw out, and nut can not unload.Parent 1 inwall is provided with first bulge loop 7, fixed cover 5 outer walls and matching part, first bulge loop, 7 position are provided with second bulge loop 8, after nut check, though seeing nut from the outside is parent 1 and 5 liang of bodies of fixed cover, but but can not destroy, make that the nut Security is higher, fixed cover 5 outer walls are provided with the 3rd bulge loop 9, make nut whole tight, steadiness improves.
Claims (3)
1, anti-theft nut, comprise parent, it is characterized in that: the inner wall smooth of described parent also has the notch that at least one is built-in with anti-drop block, the nearly notch end of anti-drop block is connected with spring, notch end far away has certain slope, be provided with the fixed cover that inwall is a screw thread in the described parent, the fixed cover outer wall have at least one groove with matching part, anti-drop block position, a side consistent with parent precession direction of groove is the plane, a side consistent with parent back-out direction of groove is domatic, and the gradient of the gradient that groove is domatic and anti-drop block notch end far away is complementary.
2, anti-theft nut according to claim 1 is characterized in that: an outer end of described parent inwall is provided with first bulge loop, the fixed cover outer wall be provided with second bulge loop with matching part, the first bulge loop position.
3, anti-theft nut according to claim 2 is characterized in that: lining one end that leans on of described fixed cover outer wall is provided with the 3rd bulge loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620024980 CN2918841Y (en) | 2006-07-16 | 2006-07-16 | Anti-theft cap nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620024980 CN2918841Y (en) | 2006-07-16 | 2006-07-16 | Anti-theft cap nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2918841Y true CN2918841Y (en) | 2007-07-04 |
Family
ID=38216659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620024980 Expired - Fee Related CN2918841Y (en) | 2006-07-16 | 2006-07-16 | Anti-theft cap nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2918841Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675835A (en) * | 2015-03-06 | 2015-06-03 | 国家电网公司 | Antitheft nut |
| CN110285127A (en) * | 2019-07-25 | 2019-09-27 | 海盐宏合标准件有限公司 | A kind of anti-theft bolt easy to use |
-
2006
- 2006-07-16 CN CN 200620024980 patent/CN2918841Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675835A (en) * | 2015-03-06 | 2015-06-03 | 国家电网公司 | Antitheft nut |
| CN110285127A (en) * | 2019-07-25 | 2019-09-27 | 海盐宏合标准件有限公司 | A kind of anti-theft bolt easy to use |
| CN110285127B (en) * | 2019-07-25 | 2024-03-01 | 海盐宏合标准件有限公司 | Antitheft bolt convenient to use |
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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 |