CN103322006A - Connecting piece - Google Patents
Connecting piece Download PDFInfo
- Publication number
- CN103322006A CN103322006A CN2013101857101A CN201310185710A CN103322006A CN 103322006 A CN103322006 A CN 103322006A CN 2013101857101 A CN2013101857101 A CN 2013101857101A CN 201310185710 A CN201310185710 A CN 201310185710A CN 103322006 A CN103322006 A CN 103322006A
- Authority
- CN
- China
- Prior art keywords
- lining
- annular knurl
- link
- bolt
- knurl
- 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.)
- Pending
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Abstract
The invention discloses a connecting piece which comprises a bolt and a lining sleeved on a threaded rod of the bolt. A knurl is arranged on the threaded rod, an annular protruding portion is arranged at the upper end of the inner wall of the lining, and the inner diameter of the protruding portion is less than the outer diameter of the knurl. The connecting piece solves the problem that the lining and the bolt are easy to separate in the prior art. The tooth-shaped knurl is arranged on the threaded rod, the annular protruding portion with the inner diameter slightly less than the outer diameter of the knurl is arranged at the upper end of the inner wall of the lining, separation of lining and the bolt is avoided through the friction force between the knurl and the protruding portion, installation of the connecting piece is convenient, and installation efficiency is improved.
Description
Technical field
The present invention relates to a kind of link, belonged to the Machining Technology field.
Background technique
Link is widely used in connection and the application between the material of different qualities.In order to make the connection better effects if of link, the screw rod at link is set with lining usually, and this lining normally before link dispatches from the factory with regard to supporting being installed on the screw rod, so that the later stage is more convenient when using.But, for can being overlapped, lining installs on the screw rod, usually the internal diameter of lining is designed to consistent with screw flight section width, and lining directly is sleeved on the screw rod, this mounting type is in the transportation process of link, owing to jolting, rocking, be easy to make lining and screw rod to be separated, cause link in use, need to reselect suitable lining and cooperate completely, cause installation efficiency low.
Summary of the invention
The present invention relates to a kind of link, can effectively avoid separating of sleeve pipe and bolt, be convenient to the installation of link, improved installation efficiency.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of link comprises bolt and is socketed in lining on the screw rod of described bolt that described screw rod is provided with annular knurl, and the upper end of described lining inwall is provided with annular projection section, and the internal diameter of described lug boss is less than the external diameter of described annular knurl.
Aforesaid link is characterized in that: the internal diameter of described lug boss is than the little 0.08mm-0.15mm of external diameter of annular knurl.
Aforesaid link is characterized in that: the internal diameter of described lug boss is preferably the little 0.1mm of external diameter than annular knurl.
Aforesaid link is characterized in that: described annular knurl is straight-tooth shape annular knurl.
The invention has the beneficial effects as follows: by straight-tooth shape annular knurl is set at screw rod, and in the inwall of lining upper end the circular lug boss that internal diameter is slightly less than knurled outside diameter is set, by the frictional force between annular knurl and the lug boss, avoid separating of lining and bolt, be convenient to the installation of link, improved installation efficiency.
Description of drawings
Fig. 1 is the sectional view of link of the present invention;
Fig. 2 is the plan view of lining of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As depicted in figs. 1 and 2, a kind of link, comprise bolt 1 and be socketed in lining 2 on the screw rod 11 of described bolt 1, described screw rod 11 is provided with annular knurl 12, the upper end of described lining 2 inwalls is provided with annular projection section 21, and the internal diameter of described lug boss 21 is slightly less than the external diameter of described annular knurl 12, wherein annular knurl 12 is straight-tooth shape annular knurl, when the upper end of lining 2 falls to annular knurl 12 place of screw rod 11, utilize the frictional force between annular knurl 12 and the lug boss 21, avoid separating of lining 2 and bolt 1, be convenient to the installation of link, improved installation efficiency.
Wherein, the internal diameter of lug boss 21 is during than the little 0.08mm-0.15mm of external diameter of annular knurl 12, both can easily lining 2 have been passed annular knurl 12 covers and receive on the screw rod 11, and the frictional force between lug boss 21 and the annular knurl 12 is enough to avoid lining 2 to drop easily from screw rod 11.
Through repetition test, the internal diameter of lug boss (21) is during than the little 0.1mm of external diameter of annular knurl (12), best results.
In sum, a kind of link provided by the invention can effectively be avoided separating of sleeve pipe and bolt, is convenient to the installation of link, has improved installation efficiency.
Above demonstration and described basic principle of the present invention, major character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is by appending claims and equivalent circle thereof.
Claims (4)
1. link, comprise bolt (1) and be socketed in lining (2) on the screw rod (11) of described bolt (1), it is characterized in that: described screw rod (11) is provided with annular knurl (12), the upper end of described lining (2) inwall is provided with annular projection section (21), and the internal diameter of described lug boss (21) is less than the external diameter of described annular knurl (12).
2. link according to claim 1, it is characterized in that: the internal diameter of described lug boss (21) is than the little 0.08mm-0.15mm of external diameter of annular knurl (12).
3. link according to claim 2, it is characterized in that: the internal diameter of described lug boss (21) is preferably the little 0.1mm of external diameter than annular knurl (12).
4. the described link of any one according to claim 1-3 is characterized in that: described annular knurl (12) is straight-tooth shape annular knurl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101857101A CN103322006A (en) | 2013-05-20 | 2013-05-20 | Connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101857101A CN103322006A (en) | 2013-05-20 | 2013-05-20 | Connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103322006A true CN103322006A (en) | 2013-09-25 |
Family
ID=49190966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101857101A Pending CN103322006A (en) | 2013-05-20 | 2013-05-20 | Connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103322006A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500543A (en) * | 2014-11-25 | 2015-04-08 | 广西大学 | Anti-falling structure of screw mounting sleeve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3560132A (en) * | 1966-10-31 | 1971-02-02 | Deutsch Fastener Corp | Arrangement for captive screw |
| WO1980002728A1 (en) * | 1979-06-04 | 1980-12-11 | D Klaric | Connecting device |
| CN101151471A (en) * | 2005-04-01 | 2008-03-26 | 劳斯伯格篷房制造有限责任公司 | Sleeve and component provided therefor |
| CN102171461A (en) * | 2008-09-30 | 2011-08-31 | 沃纳·弗吕基格 | Fastening device |
| CN203348272U (en) * | 2013-05-20 | 2013-12-18 | 昆山神昌精密金属制品有限公司 | Connection part |
-
2013
- 2013-05-20 CN CN2013101857101A patent/CN103322006A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3560132A (en) * | 1966-10-31 | 1971-02-02 | Deutsch Fastener Corp | Arrangement for captive screw |
| WO1980002728A1 (en) * | 1979-06-04 | 1980-12-11 | D Klaric | Connecting device |
| CN101151471A (en) * | 2005-04-01 | 2008-03-26 | 劳斯伯格篷房制造有限责任公司 | Sleeve and component provided therefor |
| CN102171461A (en) * | 2008-09-30 | 2011-08-31 | 沃纳·弗吕基格 | Fastening device |
| CN203348272U (en) * | 2013-05-20 | 2013-12-18 | 昆山神昌精密金属制品有限公司 | Connection part |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500543A (en) * | 2014-11-25 | 2015-04-08 | 广西大学 | Anti-falling structure of screw mounting sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130925 |