CN201786871U - Internal and external pentagon conical flat-bottom flange bolt - Google Patents
Internal and external pentagon conical flat-bottom flange bolt Download PDFInfo
- Publication number
- CN201786871U CN201786871U CN2010202901457U CN201020290145U CN201786871U CN 201786871 U CN201786871 U CN 201786871U CN 2010202901457 U CN2010202901457 U CN 2010202901457U CN 201020290145 U CN201020290145 U CN 201020290145U CN 201786871 U CN201786871 U CN 201786871U
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- China
- Prior art keywords
- rod
- flange bolt
- bar head
- flange plate
- jiaos
- 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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Abstract
An internal and external pentagon conical flat-bottom flange bolt comprises a body (1). The body (1) consists of a rod head (1.1), a rod body (1.2) and a flange plate (1.3) formed at the lower end of the rod head (1.1), wherein the outer circumference of the rod body (1.2) is provided with thread (1.2.1). The bolt is characterized in that the thread (1.2.1) is half-thread arranged at the middle lower end of the rod body (1.2), the flange plate (1.3) is a conical flat-bottom flange plate, the rod head (1.1) is a pentagonal rod head, a pentagonal inner bore (1.1.1) is arranged in the pentagonal rod head axially, and a through hole (1.4) communicated with the pentagonal inner bore (1.1.1) is arranged in the body (1) axially. The internal and external pentagon conical flat-bottom flange bolt is not easy to slip off when used with a spanner, and has the advantages of material economization and lighter weight.
Description
Technical field:
The utility model relates to fastener areas, especially a kind of inside and outside flat flange bolt of pentagonal pyramid shape.
Background technique:
The flange plate that flange bolt generally comprises bar head, the body of rod and is formed on bar head lower end, the outer peripheral surface of the described body of rod is provided with screw thread.At present, the bar head of the flange bolt of prior art is generally hexagonal bar head, and when with supporting wrench operated with it, because spanner and hexagonal bar head have only two surface of contact, and these two surface of contact are parallel to each other, and during operation, spanner is easy to skid.Though be provided with hexagonal blind hole vertically in addition in the hexagonal bar head of some flange bolt, when using the wrench operated that matches with the hexagonal blind hole, spanner also skids easily.Secondly the flange bolt of prior art is generally solid bolt, and relatively consumptive material is also heavier after the moulding.
The model utility content:
The technical problems to be solved in the utility model is: when the supporting use of a kind of one side and spanner is provided, be difficult for skidding, relatively economize material on the other hand, the flat flange bolt of inside and outside pentagonal pyramid shape that weight is low weight again.
For solving the problems of the technologies described above, the utility model adopts a kind of so inside and outside flat flange bolt of pentagonal pyramid shape: it comprises body, described body is by the bar head, the body of rod and the flange plate formation that is formed on bar head lower end, the outer peripheral surface of the described body of rod is provided with screw thread, described screw thread is a partial thread, this partial thread is arranged on the middle lower end of the body of rod, described flange plate is the flat flange plate of taper, described bar head is five angular pole heads, be provided with five jiaos of endoporus vertically in this five angular poles head, be provided with the through hole that is connected with five jiaos of endoporus in the described body, this through hole is along the axial setting of body.
After adopting above structure, the utility model compared with prior art, have the following advantages: because the bar head of the inside and outside flat flange bolt of pentagonal pyramid shape of the present utility model is five angular pole heads, when using supporting with it wrench operated, this spanner has four surface of contact that link to each other successively and be not parallel to each other with the bar head, be equivalent to spanner and hold the bar head tightly, operating is difficult for skidding.In addition owing to five jiaos of endoporus that are provided with in this five angular poles head vertically, when using the wrench operated that matches with the five jiaos of endoporus inside and outside flat flange bolt of pentagonal pyramid shape of the present utility model, under the situation of circumcircle with same diameter, the length of side of five jiaos of endoporus can be greater than the length of side of hexagonal blind hole, when spanner rotates like this, resistance is bigger, and the probability that skids is just littler, that is to say to be difficult for skidding.Secondly owing to be provided with the through hole that is connected with five jiaos of endoporus in the body, this through hole is along the axial setting of body, and material has been saved in the setting of through hole greatly, makes the flat flange bolt of inside and outside pentagonal pyramid shape after the moulding also low weight.
Description of drawings:
Fig. 1 is the structural representation of the inside and outside flat flange bolt of pentagonal pyramid shape of the present utility model.
Fig. 2 is the sectional structure schematic representation of the inside and outside flat flange bolt of pentagonal pyramid shape of the present utility model along the straight line A-A among Fig. 1.
Fig. 3 is that the B of the flat flange bolt of inside and outside pentagonal pyramid shape shown in Fig. 1 is to structural representation.
Shown in the figure: 1, body, 1.1, the bar head, 1.1.1, five jiaos of endoporus, 1.2, the body of rod, 1.2.1, screw thread, 1.3, flange plate, 1.4, through hole.
Embodiment:
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 to Figure 3, the inside and outside flat flange bolt of pentagonal pyramid shape of the present utility model, it comprises body 1, described body 1 is made of bar head 1.1, the body of rod 1.2 and the flange plate 1.3 that is formed on bar head 1.1 lower ends.The outer peripheral surface of the described body of rod 1.2 is provided with screw thread 1.2.1, and described screw thread 1.2.1 is a partial thread, and this partial thread is arranged on the middle lower end of the body of rod 1.2.Described flange plate 1.3 is the flat flange plate of taper.Described bar head 1.1 is five angular pole heads, is provided with five jiaos of endoporus 1.1.1 vertically in this five angular poles head.Be provided with the through hole 1.4 that is connected with five jiaos of endoporus 1.1.1 in the described body 1, this through hole 1.4 is along the axial setting of body 1.
The inside and outside flat flange bolt of pentagonal pyramid shape of the present utility model, because the bar head of the inside and outside flat flange bolt of pentagonal pyramid shape of the present utility model is five angular pole heads, when using supporting with it wrench operated, this spanner has four surface of contact that link to each other successively and be not parallel to each other with the bar head, be equivalent to spanner and hold the bar head tightly, operating is difficult for skidding.In addition owing to five jiaos of endoporus that are provided with in this five angular poles head vertically, when using the wrench operated that matches with the five jiaos of endoporus inside and outside flat flange bolt of pentagonal pyramid shape of the present utility model, under the situation of circumcircle with same diameter, the length of side of five jiaos of endoporus can be greater than the length of side of hexagonal blind hole, when spanner rotates like this, resistance is bigger, and the probability that skids is just littler, that is to say to be difficult for skidding.Secondly owing to be provided with the through hole that is connected with five jiaos of endoporus in the body, this through hole is along the axial setting of body, and material has been saved in the setting of through hole greatly, makes the flat flange bolt of inside and outside pentagonal pyramid shape after the moulding also low weight.
Below only just the utility model embodiment's optimum scheme is described, but can not be interpreted as it is restriction claim.The utility model not only is confined to above embodiment, and its concrete structure allows multiple variation, as long as the variation in these claims is all within protection domain of the present utility model.
Claims (1)
1. the flat flange bolt of pentagonal pyramid shape inside and outside a kind, it comprises body (1), described body (1) is by bar head (1.1), the body of rod (1.2) and flange plate (1.3) formation that is formed on bar head (1.1) lower end, the outer peripheral surface of the described body of rod (1.2) is provided with screw thread (1.2.1), it is characterized in that: described screw thread (1.2.1) is a partial thread, this partial thread is arranged on the middle lower end of the body of rod (1.2), described flange plate (1.3) is the flat flange plate of taper, described bar head (1.1) is five angular pole heads, be provided with five jiaos of endoporus (1.1.1) vertically in this five angular poles head, be provided with the through hole (1.4) that is connected with five jiaos of endoporus (1.1.1) in the described body (1), this through hole (1.4) is along the axial setting of body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202901457U CN201786871U (en) | 2010-08-09 | 2010-08-09 | Internal and external pentagon conical flat-bottom flange bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202901457U CN201786871U (en) | 2010-08-09 | 2010-08-09 | Internal and external pentagon conical flat-bottom flange bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786871U true CN201786871U (en) | 2011-04-06 |
Family
ID=43818835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202901457U Expired - Fee Related CN201786871U (en) | 2010-08-09 | 2010-08-09 | Internal and external pentagon conical flat-bottom flange bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090209A (en) * | 2015-09-02 | 2015-11-25 | 无锡市东赫金属制品有限公司 | Bolt easy to pull and screw |
| CN105899820A (en) * | 2013-12-14 | 2016-08-24 | 冯塔那固件研发有限公司 | Screw element having a tool engagement portion |
-
2010
- 2010-08-09 CN CN2010202901457U patent/CN201786871U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105899820A (en) * | 2013-12-14 | 2016-08-24 | 冯塔那固件研发有限公司 | Screw element having a tool engagement portion |
| CN105090209A (en) * | 2015-09-02 | 2015-11-25 | 无锡市东赫金属制品有限公司 | Bolt easy to pull and screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20110809 |