CN204533140U - Flower shape anti-theft bolt in a kind of - Google Patents
Flower shape anti-theft bolt in a kind of Download PDFInfo
- Publication number
- CN204533140U CN204533140U CN201420821265.3U CN201420821265U CN204533140U CN 204533140 U CN204533140 U CN 204533140U CN 201420821265 U CN201420821265 U CN 201420821265U CN 204533140 U CN204533140 U CN 204533140U
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- China
- Prior art keywords
- bolt
- shape anti
- flower shape
- bolt head
- theft
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Abstract
The utility model relates to bolt technical field, specifically a kind of interior flower shape anti-theft bolt.Flower shape anti-theft bolt in a kind of, comprise bolt head, screw rod, it is characterized in that: the lower end connecting screw rod of bolt head, on described bolt head, annular is laid with some embedded lock grooves, is provided with boss between adjacent two lock grooves.Compared with the existing technology, shape anti-theft bolt is spent in a kind of, the one side of tightening due to its head is vertical surface, another side is then arc surface, like this, after tightening, do not have the special instrument matched not dismantle, for some need locking, situation about not dismantling provides special bolt.
Description
Technical field
The utility model relates to bolt technical field, specifically a kind of interior flower shape anti-theft bolt.
Background technique
Traditional bolt, due to shape criteria, therefore, can be dismantled by the instrument of routine, but meet the situation of some special assemblings and installation, carry out locking after needing assembling, and do not allow random dismounting, like this, traditional bolt is convenient to dismounting due to it and can not utilizes.
Summary of the invention
The utility model is for overcoming the deficiencies in the prior art, a kind of interior flower shape anti-theft bolt is provided, the one side of tightening due to its head is vertical surface, another side is then arc surface, like this, after tightening, do not have the special instrument matched not dismantle, for some need locking, situation about not dismantling provides special bolt.
For achieving the above object, in design is a kind of, flower shape anti-theft bolt, comprises bolt head, screw rod, it is characterized in that: the lower end connecting screw rod of bolt head, on described bolt head, annular is laid with some embedded lock grooves, is provided with boss between adjacent two lock grooves.
The one side of described lock groove be from the upper-end surface of bolt head under vertical surface, the another side of lock groove be along the upper-end surface of bolt head to vertical surface bottom arc surface.
The top of bolt head lower end surface is positioned at bottom described vertical surface.
Described arc surface is arc convex surface.
The outer rim of described screw rod is provided with screw thread.
Described lock groove is at least provided with 4.
The utility model compared with the existing technology, shape anti-theft bolt is spent in a kind of, the one side of tightening due to its head is vertical surface, another side is then arc surface, like this, after tightening, do not have the special instrument matched not dismantle, for some need locking, situation about not dismantling provides special bolt.
After once assembling, in follow-up using process, forbid that the position of dismantling uses, in order to prevent other people intentional or unintentional disassembling and design, during assembling, bolt head tightening direction is stressed, bolt is able to fastening, and unclamp direction due to stress surface be an arc surface, instrument will be had no way of stressed self falling, reach the object can not carrying out dismantling.
Accompanying drawing explanation
Fig. 1 is the utility model structural front view.
Fig. 2 is the utility model structure plan view.
See Fig. 1, Fig. 2,1 is bolt head, and 2 is screw rod, and 3 is screw thread, and 4 is lock groove, and 5 is boss, and 6 is vertical surface, and 7 is arc surface.
Embodiment
With reference to the accompanying drawings the utility model is described further below.
As shown in Fig. 1, Fig. 2, the lower end connecting screw rod 2 of bolt head 1, on described bolt head 1, annular is laid with some embedded lock grooves 4, is provided with boss 5 between adjacent two lock grooves 4.
The one side of lock groove 4 be from the upper-end surface of bolt head 1 under vertical surface 6, the another side of lock groove 4 be along the upper-end surface of bolt head 1 to vertical surface 6 bottom arc surface 7.
The top of bolt head 1 lower end surface is positioned at bottom vertical surface 6.
Arc surface 7 is arc convex surface.
The outer rim of screw rod 2 is provided with screw thread 3.
Lock groove 4 is at least provided with 4.
A kind of interior flower shape anti-theft bolt is provided, bolt head 1 has dug some embedded lock grooves 4, form a kind of state being similar to sunk screw, can use when counterbore assembles, the one side of tightening due to its head is vertical surface, and another side is then arc surface, like this, after tightening, do not have the special instrument matched not dismantle, for some need locking, situation about not dismantling provides special bolt.
After once assembling, in follow-up using process, forbid that the position of dismantling uses, in order to prevent other people intentional or unintentional disassembling and design, during assembling, bolt head tightening direction is stressed, bolt is able to fastening, and unclamp direction due to stress surface be an arc surface, instrument will be had no way of stressed self falling, reach the object can not carrying out dismantling.
Claims (6)
1. flower shape anti-theft bolt in a kind, comprise bolt head, screw rod, it is characterized in that: the lower end connecting screw rod (2) of bolt head (1), the upper annular of described bolt head (1) is laid with some embedded lock grooves (4), is provided with boss (5) between adjacent two lock grooves (4).
2. flower shape anti-theft bolt in one according to claim 1, it is characterized in that: the one side of described lock groove (4) be from the upper-end surface of bolt head (1) under vertical surface (6), the another side of lock groove (4) be along the upper-end surface of bolt head (1) to vertical surface (6) bottom arc surface (7).
3. flower shape anti-theft bolt in one according to claim 2, is characterized in that: described vertical surface (6) bottom is positioned at the top of bolt head (1) lower end surface.
4. flower shape anti-theft bolt in one according to claim 2, is characterized in that: described arc surface (7) is arc convex surface.
5. flower shape anti-theft bolt in one according to claim 1, is characterized in that: the outer rim of described screw rod (2) is provided with screw thread (3).
6. flower shape anti-theft bolt in one according to claim 1, is characterized in that: described lock groove (4) is at least provided with 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821265.3U CN204533140U (en) | 2014-12-19 | 2014-12-19 | Flower shape anti-theft bolt in a kind of |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821265.3U CN204533140U (en) | 2014-12-19 | 2014-12-19 | Flower shape anti-theft bolt in a kind of |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204533140U true CN204533140U (en) | 2015-08-05 |
Family
ID=53747149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420821265.3U Active CN204533140U (en) | 2014-12-19 | 2014-12-19 | Flower shape anti-theft bolt in a kind of |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204533140U (en) |
-
2014
- 2014-12-19 CN CN201420821265.3U patent/CN204533140U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |