CN202746385U - Anti-theft nut and anti-theft bolt for bicycle - Google Patents
Anti-theft nut and anti-theft bolt for bicycle Download PDFInfo
- Publication number
- CN202746385U CN202746385U CN201220427331.XU CN201220427331U CN202746385U CN 202746385 U CN202746385 U CN 202746385U CN 201220427331 U CN201220427331 U CN 201220427331U CN 202746385 U CN202746385 U CN 202746385U
- Authority
- CN
- China
- Prior art keywords
- nut
- theft
- bolt
- bolt head
- ratchet slot
- 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 - Lifetime
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Abstract
The utility model relates to an anti-theft nut and an anti-theft bolt for a bicycle. The anti-theft nut comprises a nut body, wherein a bolt hole is formed in the center of the nut body; the nut body is in the shape of a cone frustum; the circumferential surface in the shape of the cone frustum is a smooth surface; at least one ratchet groove is formed on the smooth surface; and the ratchet groove extends to the outer end of the nut body. The anti-theft bolt comprises a bolt body comprising a bolt rod and a bolt head, wherein the bolt head is in the shape of a cone frustum; the circumferential surface in the shape of the cone frustum is a smooth surface; at least one ratchet groove is formed on the smooth surface; and the ratchet groove extends to the top surface of the bolt head. As the side wall at the outer end of the anti-theft nut/the bolt head is set to be a smooth conical inclined surface, a thief cannot clamp the nut/the bolt head by using a general spanner, so that the nut/the bolt head cannot be unscrewed all the time; and even if the thief reluctantly clamps the nut/the bolt head by utilizing a recess of the ratchet groove, the thief only can unscrew the nut/the bolt head in the screwing direction, and the nut/the bolt head slides when being rotated in the unscrewing direction, so that the anti-theft function is achieved.
Description
Technical field
The utility model relates to a kind of threaded connector technical field, particularly is mainly used in preventing stolen a kind of bicycle use anti-theft nut and the anti-theft bolt of important spare part on the bicycle.
Background technique
Nut on the existing public bicycles is commonly the general nut of GB, and its nut periphery is hexagon shape, is vised or entangles and by the twisting instrument nut is unclamped by some general instruments easily.Some lawless persons often utilize general utility tool will be connected to cycle wheel flower-drum spindle nut to unclamp, thereby steal the important spare parts such as wheel on the public bicycles, vehicle frame, seat cushion.
The model utility content
The purpose of this utility model is to overcome the deficiency that above-mentioned prior art exists, and provides a kind of simple and reasonable for structure, and being not easy to the twisting of GB spanner and tonger unclamps, but bicycle use anti-theft nut and the anti-theft bolt that it can be screwed.
The purpose of this utility model is achieved in that
A kind of bicycle use anti-theft nut comprises nut body, and the nut body center has screw, it is characterized in that described nut body is circular cone shape, and the circumferential surface of circular cone shape is smooth surface, smooth surface is provided with at least one ratchet slot, and ratchet slot extends to the outer end of nut body.In view of the outer end sidewall of anti-theft nut is arranged to smooth circular cone inclined-plane, the robber uses common wrench can't clamp jack panel, and nut can't be twisted all the time, even the robber utilizes the recess of ratchet slot to vise reluctantly nut, also can only turn nut along the direction that screws, then skid when direction is rotated along unclamping.And this nut is to be applied on the important spare part of bicycle, with the usefulness that fixes, therefore, can reach very effective anti-theft effect to important spare part; If people need to back-out nut, necessarily cooperate special spanner, the special spanner the inside has individual projection to cooperate with the ratchet slot of anti-theft nut, forms a rotation location, so just can back-out or tightening nut.
The purpose of this utility model can also adopt following technical measures to solve:
As scheme more specifically, described ratchet slot is provided with three and be evenly arranged on the circumferential surface of nut body.
Described ratchet slot comprises supporting surface and guide surface, and supporting surface points to the nut body centre, and guide surface is arc surface.
Described nut body is the nut that is connected with the flower-drum axle of cycle wheel.
Described nut body is and the bolted nut of the seat cushion of cycle wheel.
A kind of bicycle use anti-theft bolt comprises the bolt body that is made of screw rod and bolt head, it is characterized in that, described bolt head is circular cone shape, and the circumferential surface of circular cone shape is smooth surface, and smooth surface is provided with at least one ratchet slot, and ratchet slot extends to the bolt head end face.
The purpose of this utility model can also adopt following technical measures to solve:
As scheme more specifically, described ratchet slot is provided with three and be distributed on the circumferential surface of bolt head.
Described ratchet slot comprises supporting surface and guide surface, and supporting surface points to the bolt head centre, and guide surface is arc surface.
Described bolt body is the bolt that is connected with the seat cushion nut of cycle wheel.
The beneficial effects of the utility model are as follows:
(1) is arranged to smooth circular cone inclined-plane in view of the outer end sidewall of anti-theft nut, the robber uses common wrench can't clamp jack panel, nut can't be twisted all the time, even the robber utilizes the recess of ratchet slot to vise reluctantly nut, he also can only turn nut along the direction that screws, and then skids when direction is rotated along unclamping.And this nut is to be applied on the important spare part of bicycle, with the usefulness that fixes, therefore, can reach very effective anti-theft effect to important spare part; If people need to back-out nut, necessarily cooperate special spanner, the special spanner the inside has individual projection to cooperate with the ratchet slot of anti-theft nut, forms a rotation location, so just can back-out or tightening nut.As a same reason, the design of this anti-theft nut outer end is applied on the bolt head, makes it become the antitheft principle anti-theft bolt the same with anti-theft nut;
(2) guide surface of ratchet slot is arc surface in anti-theft nut and the anti-theft bolt, and when using non-matching instrument toward unclamping direction when rotating anti-theft nut or anti-theft bolt, slipping effect is more obvious, further strengthens anti-theft function.
Description of drawings
Fig. 1 is anti-theft nut one example structure schematic representation of the present utility model.
Fig. 2 is anti-theft nut master TV structure schematic representation.
Fig. 3 is the left TV structure schematic representation of Fig. 2.
Fig. 4 is anti-theft bolt one example structure schematic representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1 to Figure 3, a kind of bicycle use anti-theft nut, comprise nut body 1, nut body 1 center has screw 11, described nut body 1 is circular cone shape, and the circumferential surface of circular cone shape is smooth surface, and smooth surface is provided with at least one ratchet slot 12, and ratchet slot 12 extends to the outer end of nut body 1.
Described ratchet slot 12 is provided with three and be evenly arranged on the circumferential surface of nut body 1.
Described ratchet slot 12 comprises supporting surface 121 and guide surface 122, and supporting surface 121 points to nut body 1 centre, and guide surface 122 is arc surface.
Described nut body 1 is the nut that is connected with the flower-drum axle of cycle wheel.Described nut body 1 also can for the bolted nut of the seat cushion of cycle wheel.
As shown in Figure 4, a kind of bicycle use anti-theft bolt comprises the bolt body 2 that is made of screw rod 22 and bolt head 21, described bolt head 21 is circular cone shape, and the circumferential surface of circular cone shape is smooth surface, and smooth surface is provided with at least one ratchet slot 212, and ratchet slot 212 extends to bolt head 21 end faces.
Described ratchet slot 212 is provided with three and be distributed on the circumferential surface of bolt head 21.
Described ratchet slot 212 comprises supporting surface and guide surface, and supporting surface points to the bolt head centre, and guide surface is arc surface.
Described bolt body 2 is the bolt that is connected with the seat cushion nut of cycle wheel.
Above-mentioned anti-theft nut 1 and anti-theft bolt 2 can be used together.
Claims (9)
1. bicycle use anti-theft nut, comprise nut body (1), nut body (1) center has screw (11), it is characterized in that, described nut body (1) is circular cone shape, and the circumferential surface of circular cone shape is smooth surface, and smooth surface is provided with at least one ratchet slot (12), and ratchet slot (12) extends to the outer end of nut body (1).
2. bicycle use anti-theft nut according to claim 1 is characterized in that, described ratchet slot (12) is provided with three and be evenly arranged on the circumferential surface of nut body (1).
3. bicycle use anti-theft nut according to claim 1 is characterized in that, described ratchet slot (12) comprises supporting surface (121) and guide surface (122), and supporting surface (121) points to nut body (1) centre, and guide surface (122) is arc surface.
4. bicycle use anti-theft nut according to claim 1 is characterized in that, described nut body (1) is the nut that is connected with the flower-drum axle of cycle wheel.
5. bicycle use anti-theft nut according to claim 1 is characterized in that, described nut body (1) is and the bolted nut of the seat cushion of cycle wheel.
6. bicycle use anti-theft bolt, comprise the bolt body (2) that is consisted of by screw rod (22) and bolt head (21), it is characterized in that, described bolt head (21) is circular cone shape, and the circumferential surface of circular cone shape is smooth surface, smooth surface is provided with at least one ratchet slot, and ratchet slot extends to bolt head (21) end face.
7. bicycle use anti-theft bolt according to claim 6 is characterized in that, described ratchet slot is provided with three and be distributed on the circumferential surface of bolt head (21).
8. bicycle use anti-theft bolt according to claim 6 is characterized in that, described ratchet slot comprises supporting surface and guide surface, and supporting surface points to the bolt head centre, and guide surface is arc surface.
9. bicycle use anti-theft bolt according to claim 6 is characterized in that, described bolt body (2) is the bolt that is connected with the seat cushion nut of cycle wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220427331.XU CN202746385U (en) | 2012-08-27 | 2012-08-27 | Anti-theft nut and anti-theft bolt for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220427331.XU CN202746385U (en) | 2012-08-27 | 2012-08-27 | Anti-theft nut and anti-theft bolt for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746385U true CN202746385U (en) | 2013-02-20 |
Family
ID=47705784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220427331.XU Expired - Lifetime CN202746385U (en) | 2012-08-27 | 2012-08-27 | Anti-theft nut and anti-theft bolt for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746385U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041832A (en) * | 2015-08-13 | 2015-11-11 | 郑州比克新能源汽车有限公司 | Electric automobile wheel nut anti-theft structure |
| CN107906103A (en) * | 2017-10-25 | 2018-04-13 | 康佳集团股份有限公司 | A kind of non-removable threaded connector and its tightening method |
| RU186590U1 (en) * | 2018-02-19 | 2019-01-24 | Диана Анатольевна Ерцкина | ANTI-VANDAL THREADED CONNECTION |
| CN112682410A (en) * | 2020-12-22 | 2021-04-20 | 上海电气集团上海电机厂有限公司 | Fastening bolt structure suitable for large pretightening force |
-
2012
- 2012-08-27 CN CN201220427331.XU patent/CN202746385U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041832A (en) * | 2015-08-13 | 2015-11-11 | 郑州比克新能源汽车有限公司 | Electric automobile wheel nut anti-theft structure |
| CN107906103A (en) * | 2017-10-25 | 2018-04-13 | 康佳集团股份有限公司 | A kind of non-removable threaded connector and its tightening method |
| RU186590U1 (en) * | 2018-02-19 | 2019-01-24 | Диана Анатольевна Ерцкина | ANTI-VANDAL THREADED CONNECTION |
| CN112682410A (en) * | 2020-12-22 | 2021-04-20 | 上海电气集团上海电机厂有限公司 | Fastening bolt structure suitable for large pretightening force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUANG ZHAORUI Free format text: FORMER OWNER: CAI TINGZHEN Effective date: 20150415 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150415 Address after: Taiwan County, Chiayi, China water village head 7 adjacent justice Road No. 86 Patentee after: Huang Zhaorui Address before: Taiwan Chiayi County Township village head Chinese water road 22 adjacent lane No. 9 in 33 Patentee before: Cai Tingjian |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |