CN202789966U - Quincuncial bolt - Google Patents
Quincuncial bolt Download PDFInfo
- Publication number
- CN202789966U CN202789966U CN 201220426981 CN201220426981U CN202789966U CN 202789966 U CN202789966 U CN 202789966U CN 201220426981 CN201220426981 CN 201220426981 CN 201220426981 U CN201220426981 U CN 201220426981U CN 202789966 U CN202789966 U CN 202789966U
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- CN
- China
- Prior art keywords
- bolt
- head
- utility
- model
- screw rod
- 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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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a quincuncial bolt, which comprises a head part (1) and a threaded rod (2), wherein the threaded rod (2) is provided with a thread; the head part (1) is a cylinder; the outer side of the cylinder is provided with arc-shaped bulges (11) along the axial direction; and the arc-shaped bulges (11) are evenly distributed at the outer side of the cylinder. According to the quincuncial bolt disclosed by the utility model, the force bearing parts of the head part are the arc-shaped bulges, and therefore, the wear resistance of the head part is greatly increased, and the service life of the bolt is prolonged.
Description
Technical field
The utility model belongs to fastener areas, is specifically related to a kind of bolt.
Background technique
Bolt is a kind of adapted nut or the cylindrical threaded fastening piece that is connected with the body screw-thread fit, is used for making two above parts to be fixed together.The bolt of prior art comprises head and screw rod, and wherein bolt head mostly is greatly hexagon head, square head or large homalocephalus cross etc., in use, produces easily in the head of above-mentioned bolt and the contact process of extracting tool and damages.
Therefore, need a kind of new bolt to address the above problem.
The model utility content
The model utility purpose: the utility model holds flimsy deficiency for bolt head in the prior art, provides a kind of head non-damageable quincunx bolt.
Technological scheme: for solving the problems of the technologies described above, quincunx bolt of the present utility model adopts following technological scheme:
A kind of quincunx bolt comprises head and screw rod, is provided with screw thread on the described screw rod, and described head is cylindrical, and described columniform arranged outside has arc convex vertically, and described arc convex is evenly distributed in the described columniform outside.
Beneficial effect: the head load of quincunx bolt of the present utility model partly is arc convex, has greatly increased the wear-resistant ability of head, improves bolt working life.
Description of drawings
Fig. 1 is the plan view of the quincunx bolt of the utility model;
Fig. 2 is the plan view of the quincunx bolt of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiments only is used for explanation the utility model and is not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
See also illustrated in figures 1 and 2ly, quincunx bolt of the present utility model comprises head 1 and screw rod 2, be provided with screw thread on the screw rod 2, head 1 is cylindrical, and columniform arranged outside has arc convex 11 vertically, and arc convex 11 is evenly distributed in the columniform outside.Each several part arc convex 11 is stressed even, not fragile.Wherein, arc convex 11 is arc-shaped convex.The quantity of arc convex 11 is 2,4 or 6.Screw rod 2 is provided with guide rod 3 away from an end of head 1.Its leading role makes things convenient for bolt to enter.Guide rod 3 is cylindrical, and the diameter of guide rod 3 is less than the diameter of screw rod 2.Guide rod 3 also can be frustoconic shape.The length of guide rod 3 is the 1/5-1/4 of screw rod 2 length.
The head load of quincunx bolt of the present utility model partly is arc convex, has greatly increased the wear-resistant ability of head, improves bolt working life.
Claims (7)
1. quincunx bolt, comprise head (1) and screw rod (2), described screw rod is provided with screw thread on (2), it is characterized in that, described head (1) is cylindrical, described columniform arranged outside has arc convex (11) vertically, and described arc convex (11) is evenly distributed in the described columniform outside.
2. quincunx bolt as claimed in claim 1 is characterized in that, described arc convex (11) is arc-shaped convex (11).
3. quincunx bolt as claimed in claim 1 is characterized in that, the quantity of described arc convex (11) is 2,4 or 6.
4. quincunx bolt as claimed in claim 1 is characterized in that, described screw rod (2) is provided with guide rod (3) away from an end of described head (1).
5. quincunx bolt as claimed in claim 4 is characterized in that, described guide rod (3) is cylindrical, and the diameter of described guide rod (3) is less than the diameter of described screw rod (2).
6. quincunx bolt as claimed in claim 4 is characterized in that, described guide rod (3) is frustoconic shape.
7. quincunx bolt as claimed in claim 4 is characterized in that, the length of described guide rod (3) is the 1/5-1/4 of described screw rod (2) length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220426981 CN202789966U (en) | 2012-08-27 | 2012-08-27 | Quincuncial bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220426981 CN202789966U (en) | 2012-08-27 | 2012-08-27 | Quincuncial bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789966U true CN202789966U (en) | 2013-03-13 |
Family
ID=47817232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220426981 Expired - Fee Related CN202789966U (en) | 2012-08-27 | 2012-08-27 | Quincuncial bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789966U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527598A (en) * | 2013-10-25 | 2014-01-22 | 昆山市联昆热压板有限公司 | Bolt |
| CN105496530A (en) * | 2016-01-28 | 2016-04-20 | 苏州瑞华医院有限公司 | Lobulated hollow forcing screw |
-
2012
- 2012-08-27 CN CN 201220426981 patent/CN202789966U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527598A (en) * | 2013-10-25 | 2014-01-22 | 昆山市联昆热压板有限公司 | Bolt |
| CN105496530A (en) * | 2016-01-28 | 2016-04-20 | 苏州瑞华医院有限公司 | Lobulated hollow forcing screw |
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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: 20130313 Termination date: 20150827 |
|
| EXPY | Termination of patent right or utility model |