CN206682117U - A kind of bolt arrangement with good end face outward appearance - Google Patents
A kind of bolt arrangement with good end face outward appearance Download PDFInfo
- Publication number
- CN206682117U CN206682117U CN201720227824.1U CN201720227824U CN206682117U CN 206682117 U CN206682117 U CN 206682117U CN 201720227824 U CN201720227824 U CN 201720227824U CN 206682117 U CN206682117 U CN 206682117U
- Authority
- CN
- China
- Prior art keywords
- bolt
- pit
- bolt head
- shank
- head
- 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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- Bolts, Nuts, And Washers (AREA)
Abstract
It the utility model is related to a kind of bolt arrangement with good end face outward appearance, including shank of bolt and the bolt head for being fixed on shank of bolt one end；External screw thread is provided with shank of bolt；Bolt head is cylindrical structure, and the external diameter of bolt head is more than the maximum outside diameter of shank of bolt；It is provided with the top surface of bolt head and tightens pit.The technical program greatly improves the theftproof performance of whole bolt, and such a bolt needs special spanner to be used to installing and dismantling the bolt, meanwhile, the engagement that cylindrical bolt head can be intact with the surface of parts to be connected, improve outer quality.
Description
Technical field
The utility model belongs to connector technical field, particularly relates to a kind of bolt arrangement with good end face outward appearance.
Background technology
Threaded connection is main a kind of connected mode in current mechanical field, under this connected mode, it is sometimes desirable to
There is higher flatness between end to bolt or nut and the surface for connecting parts, but the threaded connection of prior art
It can not realize, because the head of bolt arrangement is necessary for outer polygon bolt arrangement or sets countersunk head in component surface
The structure in hole, but it is bound to obvious difference be present between such structure and the surface of parts, therefore influence connection knot
The presentation quality of structure.
If the head of bolt is identical with the shape of the counter sink of component surface, generally circular, then spiral shell can not be realized
Bolt is fastenedly connected.
Therefore, bolt connection can not adapt to such application requirements, can only use riveting or welding, but rivet or weld
The stress of junction or the performance of material are influenced whether, and convenient dismounting can not be realized.
Utility model content
The purpose of this utility model is to provide a kind of bolt arrangement with outside good end face, to solve prior art spiral shell
Differences in appearance between the surface of the shape of bolt head and parts to be connected is larger, and the problem of influence presentation quality.
The utility model is achieved through the following technical solutions：
A kind of bolt arrangement with good end face outward appearance, including shank of bolt and the bolt for being fixed on described shank of bolt one end
Head；
External screw thread is provided with the shank of bolt；The bolt head is cylindrical structure, the bolt head it is outer
Footpath is more than the maximum outside diameter of the shank of bolt；
It is provided with the top surface of the bolt head and tightens pit.
Angle between the center line for tightening pit and the center line of the bolt head is more than 0 degree and is less than 90 degree, and institute
The sagittal plane for stating the center line and the bolt head of tightening pit is in be more than 0 degree of angle for being less than 90 degree.
The pit of tightening is parabola shaped for approximate Double, and described tightens pit opening on the top surface of the bolt head
Mouth deviates the center line of the bolt head.
The pit of tightening is two or more, and is uniformly arranged on the periphery of the top surface of the bolt head, two
Individual or more than two midpoints for tightening pit are respectively positioned on using the midpoint of the bolt head as on the circumference in the center of circle.
The pit of tightening is cylinder.
The beneficial effects of the utility model are：
The technical program greatly improves the theftproof performance of whole bolt, and such a bolt needs special spanner to be used for
The bolt is installed and dismantles, meanwhile, the engagement that cylindrical bolt head can be intact with the surface of parts to be connected, improve outer
Quality.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model bolt arrangement application；
Fig. 2 is the application structure schematic diagram of another bolt arrangement of the utility model.
Description of reference numerals
1 shank of bolt, 2 bolt heads, 3 tighten pit, 4 first parts, 5 second parts, 10 shanks of bolt, 20 bolt heads
Portion, 21 tighten pit, 30 first parts, 40 second parts.
Embodiment
Describe the technical solution of the utility model in detail by the following examples, following embodiment is only exemplary
, it is only capable of for explanation and illustration the technical solution of the utility model, and be not to be construed as to technical solutions of the utility model
Limitation.
Embodiment 1
The application provides a kind of bolt arrangement with good end face outward appearance, as shown in figure 1, including shank of bolt 1 and fixing
Bolt head 2 in shank of bolt one end；Shank of bolt in the application is prior art, herein without describing in detail, the application
The first parts 4 and the second parts 5 pass through this bolt connection.
External screw thread is provided with shank of bolt 1, externally threaded length, the size of flight pitch are to need to be defined；Bolt
Head is cylindrical structure, and the external diameter of bolt head is more than the maximum outside diameter of shank of bolt；The bolt head of cylindrical structure is this
The key technology scheme of application, the axial centerline of cylindrical structure overlap with the axial centerline of shank of bolt.
It is provided with the top surface of bolt head 2 and tightens pit 3.It is parabola shaped for approximate Double to tighten pit, and tightens recessed
Opening of the hole on the top surface of bolt head deviates the center line of bolt head.
Tighten the angle between the center line of pit and the center line of bolt head and be more than 0 degree less than 90 degree, and tighten pit
The sagittal plane of center line and bolt head is in be more than 0 degree of angle for being less than 90 degree.It is so recessed by tightening by special spanner
Hole is tightened or demounting bolt.
Embodiment 2
The application also provides a kind of bolt arrangement with good end face outward appearance, as shown in Fig. 2 including shank of bolt 10 and admittedly
Due to the bolt head 20 of shank of bolt one end；Shank of bolt in the application is prior art, herein without describing in detail, first
The parts 40 of parts 30 and second pass through this bolt connection.
External screw thread is provided with shank of bolt, externally threaded length, the size of flight pitch are to need to be defined；Bolt head
Portion is cylindrical structure, and the external diameter of bolt head is more than the maximum outside diameter of shank of bolt；The bolt head of cylindrical structure is this Shen
Key technology scheme please, the axial centerline of cylindrical structure overlap with the axial centerline of shank of bolt.
It is provided with the top surface of bolt head and tightens pit 21.
It is two or more to tighten pit, and is uniformly arranged on the periphery of the top surface of bolt head, two or two
The center line for tightening pit above is respectively positioned on using the midpoint of bolt head as on the circumference in the center of circle.
Pit is tightened as cylinder.
In the present embodiment, tighten pit for three it is cylindrical tighten pit, three cylindrical to tighten in pit
Line is parallel with the center line of bolt head, and three cylindrical centers of circle for tightening pit are uniformly distributed in the midpoint with bolt head
For on the circumference in the center of circle.
By the technical program, the end of bolt is essentially in flat form, or can be with parts to be connected
Surface configuration is identical, and the bolt of the technical program needs specific instrument to be dismounted.In the technical program, if necessary to by originally
The bolt of technical scheme is tightened, it is only necessary to is inserted into specific instrument and is tightened in pit, using the friction for tightening pit come real
It existing rundown process, after tightening in place, can realize that auto lock operates, when needing to lay down bolt, reversely turn specific
Instrument.
The utility model has carried out detailed explanation by preferred embodiment.However, by studying carefully above,
Apparent to change and increase and those of ordinary skill in the art to each embodiment.It is intended that institute
There are these to change and increase all to fall in the scope that the utility model claims are protected.
Claims (4)
- A kind of 1. bolt arrangement with good end face outward appearance, it is characterised in that：Including shank of bolt and it is fixed on the shank of bolt The bolt head of one end；External screw thread is provided with the shank of bolt；The bolt head is cylindrical structure, and the external diameter of the bolt head is big In the maximum outside diameter of the shank of bolt；It is provided with the top surface of the bolt head and tightens pit；Angle between the center line for tightening pit and the center line of the bolt head is more than 0 degree and is less than 90 degree, and described stubborn The center line of tight pit is in be more than 0 degree of angle for being less than 90 degree with the sagittal plane of the bolt head.
- 2. the bolt arrangement according to claim 1 with good end face outward appearance, it is characterised in that：The pit of tightening is Approximate Double is parabola shaped, and the opening for tightening pit on the top surface of the bolt head deviates in the bolt head Line.
- 3. the bolt arrangement according to claim 1 with good end face outward appearance, it is characterised in that：The pit of tightening is Two or more, and are uniformly arranged on the periphery of the top surface of the bolt head, two or more described to tighten The midpoint of pit is respectively positioned on using the midpoint of the bolt head as on the circumference in the center of circle.
- 4. the bolt arrangement according to claim 3 with good end face outward appearance, it is characterised in that：The pit of tightening is Cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720227824.1U CN206682117U (en) | 2017-03-10 | 2017-03-10 | A kind of bolt arrangement with good end face outward appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720227824.1U CN206682117U (en) | 2017-03-10 | 2017-03-10 | A kind of bolt arrangement with good end face outward appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206682117U true CN206682117U (en) | 2017-11-28 |
Family
ID=60392906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720227824.1U Expired - Fee Related CN206682117U (en) | 2017-03-10 | 2017-03-10 | A kind of bolt arrangement with good end face outward appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206682117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647636A (en) * | 2020-12-19 | 2021-04-13 | 王洪 | Environment-friendly ceiling board and preparation method thereof |
-
2017
- 2017-03-10 CN CN201720227824.1U patent/CN206682117U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647636A (en) * | 2020-12-19 | 2021-04-13 | 王洪 | Environment-friendly ceiling board and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171128 Termination date: 20200310 |