CN203548489U - Hexagonal head bolt - Google Patents
Hexagonal head bolt Download PDFInfo
- Publication number
- CN203548489U CN203548489U CN201320678813.7U CN201320678813U CN203548489U CN 203548489 U CN203548489 U CN 203548489U CN 201320678813 U CN201320678813 U CN 201320678813U CN 203548489 U CN203548489 U CN 203548489U
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- CN
- China
- Prior art keywords
- bolt
- screw
- head
- screw rod
- bolt head
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- 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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- 239000012634 fragment Substances 0.000 claims description 17
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to the field of fastening pieces, in particular to a hexagonal head bolt. The bolt comprises a bolt head, a screw and threads, wherein the bottom face of the bolt head downward extends to form the screw, and the threads are formed in the outer edge of the screw. An inner hexagonal piece is arranged in the bolt head, an annular dome is arranged on the face, facing towards the screw, of the bolt head, the center of the annular dome protrudes towards the screw, and the screw penetrates through the annular dome. A hexagonal boss is arranged on the bottom face of the screw, and a screwdriver groove is formed in the bottom face of the hexagonal boss. Certain tensile force is kept between two connected parts all the time through the annular dome, connection stability of the two connected parts is ensured, after the inner hexagonal piece is arranged in the bolt head, the bolt can still be rapidly detached through the inner hexagonal piece even when the external hexagonal bolt head deforms, and the service life of the bolt is prolonged.
Description
Technical field
The utility model relates to fastener areas, particularly a kind of hexagon head bolt.
Background technique
Bolt is by head and a screw rod class fastening piece dimerous, need coordinate with nut, for being fastenedly connected two with the part of through hole.This Connecting format claims bolt to connect.As nut is screwed off from bolt, can make again these two parts separately, therefore bolt connects, be to belong to removably connect.
Application number is that 201320017427.3 Chinese utility model patent discloses a kind of hex head bolt, comprises bolt head and screw rod, and the end face of described bolt head is arc shaped surface, and the screw rod of described bolt head is fixed with annular shell fragment on face.Although this hex head bolt can be by the distortion of annular shell fragment, make two to be connected and between part, to remain certain tension force, guarantee two connective stabilities that are connected between part, but when some special occasions or inversion installation, rotation head installs or demounting bolt will produce very large difficulty.
Model utility content
The purpose of this utility model is to provide a kind of hexagon head bolt that can adopt various ways to realize installation and removal.
The utility model is that the technological scheme that its technical problem of solution adopts is,
A hexagon head bolt, comprises bolt head, the screw rod extending to form from described bolt head bottom surface downwards and is formed at the screw thread in described screw rod outer rim; It is characterized in that: the inside of described bolt head is provided with an interior hexagonal, at the screw rod of described bolt head, be fixed with annular shell fragment on face, the center of described annular shell fragment is towards screw rod direction protuberance, and described screw rod runs through annular shell fragment; Described screw rod bottom surface is provided with a Hexagon boss, and the bottom surface of Hexagon boss is provided with screw-driver slot.
Further, described screw-driver slot inner concave shape is formed in described Hexagon boss bottom surface.
Further, described screw-driver slot is straight groove or cross recess.
Compared with prior art, the utility model hexagon head bolt has following advantage:
1, the utility model is provided with after interior hexagonal in bolt head, even if the distortion of the hex head bolt head of outside still can utilize interior hexagonal to carry out quick-detachment bolt, has increased the working life of bolt.
2, the screw rod of bolt head described in the utility model is fixed with annular shell fragment on face, and swell towards screw rod direction at the center of described annular shell fragment.Therefore by this hexagon head bolt, by two, be connected part fixedly time soon, the annular elastomeric sector-meeting of the screw rod of its bolt head on face starts the side surface that contact is connected part, along with further tightening of this hexagon head bolt, annular shell fragment in above-mentioned will start distortion, thereby produce a rebounding force to being connected part, being finally two is connected between part and remains and guarantee two connective stabilities that are connected between part by certain tension force.
3, the utility model is by screw rod bottom surface, screw-driver slot being set, and in conjunction with original installing/dismounting portion---head, can realize multiple installation and removal mode simultaneously.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the utility model hexagon head bolt.
Fig. 2 is the left TV structure schematic diagram of the utility model hexagon head bolt.
In figure: 1, bolt head, 2, screw rod, 3, screw thread, 4, annular shell fragment, 5, Hexagon boss, 6, interior hexagonal.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object with effect is easy to understand, below in conjunction with illustrating and specific embodiment, further set forth the utility model.
Hexagon head bolt as shown in Figure 1 and Figure 2, comprises bolt head 1, the screw rod 2 extending to form from described bolt head 1 bottom surface downwards and is formed at the screw thread 3 in described screw rod 2 outer rims; The inside of described bolt head 1 is provided with an interior hexagonal 6.Even if the distortion of the hex head bolt head of outside, still can utilize interior hexagonal 6 to carry out quick-detachment bolt, increased the working life of bolt.
Screw rod 2 at described bolt head 1 is fixed with annular shell fragment 4 on face, and the center of described annular shell fragment 4 is towards screw rod 2 direction protuberances, and described screw rod 2 runs through annular shell fragment 4.By this hexagon head bolt, by two, be connected part fixedly time soon, the annular shell fragment 4 of the screw rod 2 of its bolt head 1 on face can start the side surface that contact is connected part, along with further tightening of this hexagon head bolt, annular shell fragment 4 in above-mentioned will start distortion, thereby produce a rebounding force to being connected part, being finally two is connected between part and remains and guarantee two connective stabilities that are connected between part by certain tension force.
Described screw rod 2 bottom surfaces are provided with a Hexagon boss 5, and the bottom surface of Hexagon boss 5 is provided with screw-driver slot.Described screw-driver slot inner concave shape is formed in described Hexagon boss 5 bottom surfaces.Described screw-driver slot is straight groove or cross recess.By in screw rod 2 bottom surfaces, screw-driver slot being set, simultaneously, in conjunction with original installing/dismounting portion---head, can realize multiple installation and removal mode.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.
The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a hexagon head bolt, comprises bolt head (1), the screw rod (2) extending to form from described bolt head (1) bottom surface downwards and is formed at the screw thread (3) in described screw rod (2) outer rim; It is characterized in that: the inside of described bolt head (1) is provided with an interior hexagonal (6), screw rod (2) in described bolt head (1) is fixed with annular shell fragment (4) on face, the center of described annular shell fragment (4) is towards screw rod (2) direction protuberance, and described screw rod (2) runs through annular shell fragment (4); Described screw rod (2) bottom surface is provided with a Hexagon boss (5), and the bottom surface of Hexagon boss (5) is provided with screw-driver slot.
2. hexagon head bolt according to claim 1, is characterized in that: described screw-driver slot inner concave shape is formed in described Hexagon boss (5) bottom surface.
3. hexagon head bolt according to claim 1 and 2, is characterized in that: described screw-driver slot is straight groove or cross recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320678813.7U CN203548489U (en) | 2013-10-30 | 2013-10-30 | Hexagonal head bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320678813.7U CN203548489U (en) | 2013-10-30 | 2013-10-30 | Hexagonal head bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548489U true CN203548489U (en) | 2014-04-16 |
Family
ID=50466612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320678813.7U Expired - Fee Related CN203548489U (en) | 2013-10-30 | 2013-10-30 | Hexagonal head bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438627A (en) * | 2016-11-18 | 2017-02-22 | 北京建筑大学 | Fastening piece for unilateral bolt |
-
2013
- 2013-10-30 CN CN201320678813.7U patent/CN203548489U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438627A (en) * | 2016-11-18 | 2017-02-22 | 北京建筑大学 | Fastening piece for unilateral bolt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 314100, No. 8, Chi Chi Road, dry kiln town, Jiashan County, Jiaxing, Zhejiang Patentee after: Zhejiang Cowin Fastech CO., Ltd. Address before: Jiashan County of Jiaxing City, Zhejiang province 314100 dry kiln Town Road No. 88 Room 308 leaves Patentee before: ZHEJIANG COWIN FASTECH CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20201030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |