CN203570817U - Anti-detaching bolt and crossover coupling - Google Patents
Anti-detaching bolt and crossover coupling Download PDFInfo
- Publication number
- CN203570817U CN203570817U CN201320570811.6U CN201320570811U CN203570817U CN 203570817 U CN203570817 U CN 203570817U CN 201320570811 U CN201320570811 U CN 201320570811U CN 203570817 U CN203570817 U CN 203570817U
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- groove
- tooth
- head
- bolt
- axial region
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Abstract
The utility model discloses an anti-detaching bolt and a crossover coupling. The anti-detaching bolt comprises a head part and a shaft part. The shaft part is provided with threads. The head part is arranged at the top end of the shaft part. A groove is formed in the end face of the head part. The two ends of the groove penetrate through the head part. A tooth-shaped structure is arranged at the bottom of the groove. The crossover coupling comprises a hexagonal head part. A protrusion matched with the tooth-shaped structure is arranged on one end face of the hexagonal head part. The anti-detaching bolt and the crossover coupling matched with the anti-detaching bolt cannot generate waste materials.
Description
Technical field
The utility model belongs to technical field of fastening, especially relates to a kind of anti-demounting bolt and the crossover sub suitable with it.
Background technique
Bolt is conventional fastening piece, to mount and dismount all more for convenience for the indispensable strength member connecting between mechanical part and device is fixing, common bolt and nut fastening piece, but use bolt and nut fastening piece for some significant points, it is very important that its Security just seems, because it can disassemble easily, therefore, often become the object that lawless person steals or destroys, cause huge property loss.
For addressing this problem, many people research and develop diversified anti-demounting bolt, as Chinese patent notice of authorization number: CN 202690691U, January 23 2013 notice of authorization day, a kind of anti-theft bolt is disclosed, comprise outer-hexagonal bolt head, bar portion, between described outer-hexagonal bolt head and bar portion, be provided with cylindrical transition part, between described outer-hexagonal bolt head and cylindrical transition part, be provided with concave ring groove, between described outer-hexagonal bolt head and cylindrical transition part, form neck post.When screwing in, bolt reaches after tight condition, continue to pull spanner the cylindrical transition part between head and bar portion disconnect, only have bar portion to be retained in the object of connection, thereby can be antitheft, the effect of Anti-dismantling, but after connection completes, head is thrown away as waste material, has caused larger waste.
Model utility content
The utility model is need to be by head and bolt fracture when tightening and cause the deficiency of waste material in order to overcome anti-demounting bolt of the prior art, and a kind of anti-demounting bolt of waste material and suitable crossover sub of can not producing is provided.
To achieve these goals, the utility model is by the following technical solutions:
A kind of anti-demounting bolt of the present utility model, comprises head and axial region, and described axial region is provided with screw thread, and described head is arranged on the top of axial region, and the end face of head is provided with groove, and the two ends of groove connect head, and the bottom of described groove is provided with tooth-shape structure.In use, by rotating this bolt with the suitable spanner of tooth-shape structure, can carry out fastening.After tightening, without head being twisted into two parts to the object that can realize Anti-dismantling, the waste of effectively having avoided existing structure to cause product, has also saved manufacture cost simultaneously.
As preferably, the sidewall of described groove is centroclinal to groove gradually to bottom portion of groove by head end, and described tooth-shape structure comprises left groove and the right groove of depression, between left groove and right groove, is provided with middle tooth.With the tooth-shape structure of left groove, right groove and middle tooth, differ from the specification of conventional bolt head like this, only have the special tool by matching with tooth-shape structure just can open, anti-theft effect is better.
As preferably, the bottom surface of described left groove is perpendicular to the axis of axial region, and described middle tooth is rectangular teeth, and the bottom surface of described right groove is inclined-plane.
And the crossover sub that this anti-demounting bolt is suitable, comprises hexagon-head, and an end face of described hexagon-head is provided with the projection suitable with tooth-shape structure.By common wrench, rotate like this hexagon-head of crossover sub, can complete the fastening of anti-demounting bolt, after having tightened, crossover sub can be lifted down, and re-starts the assembling of next product, thereby replaces manufacturing special-purpose spanner, reduces production costs.
As preferably, described projection comprise the left tooth suitable with left groove, with the suitable right tooth of right groove and with the suitable middle slot of middle tooth.
Therefore, the utlity model has following beneficial effect: the waste that (1) has effectively avoided existing structure to cause product; (2) easily manufactured, cost of production is lower.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the utility model anti-demounting bolt;
Fig. 2 is a kind of structural representation of the utility model crossover sub.
In figure, head 1, left groove 1a, middle tooth 1b, right groove 1c, axial region 2, screw thread 2a, hexagon-head 3, projection 4, left tooth 4a, middle slot 4b, right tooth 4c.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
In embodiment as shown in Figure 1, a kind of anti-demounting bolt, comprises head 1 and axial region 2, and head is arranged on the top of axial region, and axial region is provided with screw thread 2a.The end face of head is provided with groove, and the sidewall of groove is centroclinal to groove gradually to bottom portion of groove by head end.The two ends of groove connect head, and the bottom of groove is provided with tooth-shape structure, comprises left groove 1a and the right groove 1c of depression, is provided with middle tooth 1b between left groove and right groove, and wherein the bottom surface of left groove is perpendicular to the axis of axial region, and middle tooth is rectangular teeth, and the bottom surface of right groove is inclined-plane.
As shown in Figure 2, the crossover sub that a kind of and this anti-demounting bolt is suitable, comprise hexagon-head 3, one end is provided with projection 4, the end face of projection be provided with the left tooth 4a suitable with left groove, with the suitable right tooth 4c of right groove and with the suitable middle slot 4b of middle tooth.When using, by the end face laminating of the projection of this crossover sub and anti-demounting bolt head, left tooth, middle slot and right groove match with left groove, middle tooth and right groove separately, now the hexagon-head to crossover sub by hexagonal wrench cover, i.e. rotatable this anti-demounting bolt of tightening.After tightening, crossover sub can be lifted down, and re-starts the assembling of next product.
Claims (5)
1. an anti-demounting bolt, it is characterized in that, comprise head (1) and axial region (2), described axial region (2) is provided with screw thread (2a), described head (1) is arranged on the top of axial region (2), the end face of head (1) is provided with groove, and the two ends of groove connect head (1), and the bottom of described groove is provided with tooth-shape structure.
2. anti-demounting bolt according to claim 1, it is characterized in that, the sidewall of described groove is centroclinal to groove gradually to bottom portion of groove by head (1) end face, described tooth-shape structure comprises left groove (1a) and the right groove (1c) of depression, between left groove (1a) and right groove (1c), is provided with middle tooth (1b).
3. anti-demounting bolt according to claim 1 and 2, is characterized in that, the bottom surface of described left groove (1a) is perpendicular to the axis of axial region (2), and described middle tooth (1b) is rectangular teeth, and the bottom surface of described right groove (1c) is inclined-plane.
4. with the suitable crossover sub of anti-demounting bolt described in claims 1 to 3, it is characterized in that, comprise hexagon-head (3), an end face of described hexagon-head (3) is provided with the projection suitable with tooth-shape structure (4).
5. crossover sub according to claim 4, is characterized in that, described projection (4) comprise the left tooth (4a) suitable with left groove (1a), with the suitable right tooth (4c) of right groove (1c) and with the suitable middle slot (4b) of middle tooth (1b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320570811.6U CN203570817U (en) | 2013-09-16 | 2013-09-16 | Anti-detaching bolt and crossover coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320570811.6U CN203570817U (en) | 2013-09-16 | 2013-09-16 | Anti-detaching bolt and crossover coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570817U true CN203570817U (en) | 2014-04-30 |
Family
ID=50538549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320570811.6U Expired - Fee Related CN203570817U (en) | 2013-09-16 | 2013-09-16 | Anti-detaching bolt and crossover coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439913A (en) * | 2019-09-04 | 2019-11-12 | 海盐上宇紧固件科技股份有限公司 | A kind of high-intensitive anti-demounting bolt of wind power equipment |
-
2013
- 2013-09-16 CN CN201320570811.6U patent/CN203570817U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439913A (en) * | 2019-09-04 | 2019-11-12 | 海盐上宇紧固件科技股份有限公司 | A kind of high-intensitive anti-demounting bolt of wind power equipment |
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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: 20140430 Termination date: 20140916 |
|
| EXPY | Termination of patent right or utility model |