CN203348272U - Connection part - Google Patents
Connection part Download PDFInfo
- Publication number
- CN203348272U CN203348272U CN 201320273772 CN201320273772U CN203348272U CN 203348272 U CN203348272 U CN 203348272U CN 201320273772 CN201320273772 CN 201320273772 CN 201320273772 U CN201320273772 U CN 201320273772U CN 203348272 U CN203348272 U CN 203348272U
- Authority
- CN
- China
- Prior art keywords
- annular knurl
- screw rod
- link
- bolt
- bush
- 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
The utility model discloses a connection part. The connection part comprises a bolt and a bush, wherein a screw rod of the bolt is sleeved with the bush. The screw rod is provided with knurling, an annular protruding portion is arranged at the upper end of the inner wall of the bush, and the inner diameter of the protruding portion is smaller than the outer diameter of the knurling. The connection part solves the problem that the bush and the bolt are separated easily in the prior art. The straight-tooth-shaped knurling is arranged on the screw rod, the annular protruding portion with the inner diameter slightly smaller than the outer diameter of the knurling is arranged at the upper end of the inner wall of the bush, separation between the bush and the bolt is avoided through friction force between the knurling and the protruding portion, installation of the connection part is convenient, and the installation efficiency is improved.
Description
Technical field
The utility model has related to a kind of link, belongs 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, usually on the screw rod of link, be set with lining, and this lining normally before link dispatches from the factory with regard to supporting being arranged on screw rod, so that the later stage is more convenient while using.But, for can being overlapped, lining installs on screw rod, usually the internal diameter of lining is designed to consistent with screw flight section width, and lining directly is sleeved on 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 be coordinated completely, cause installation efficiency low.
The model utility content
The utility model has related to a kind of link, can effectively avoid separating of sleeve pipe and bolt, is convenient to the installation of link, has improved installation efficiency.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is:
A kind of link comprises bolt and is socketed in the 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 the external diameter of annular knurl.
Aforesaid link is characterized in that: the internal diameter of described lug boss is preferably than the little 0.1mm of the external diameter of annular knurl.
Aforesaid link is characterized in that: described annular knurl is straight-tooth shape annular knurl.
The beneficial effects of the utility model are: by straight-tooth shape annular knurl is set on screw rod, and in the inwall upper end of lining, the circular lug boss that internal diameter is slightly less than knurled outside diameter is set, by the frictional force between annular knurl and lug boss, avoid separating of lining and bolt, be convenient to the installation of link, improved installation efficiency.
The accompanying drawing explanation
Fig. 1 is the sectional view of the utility model link;
Fig. 2 is the plan view of the utility model lining.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As depicted in figs. 1 and 2, a kind of link, comprise bolt 1 and be socketed in the 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 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 be received on screw rod 11 through annular knurl 12 covers, and the frictional force between lug boss 21 and 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 that the utility model provides, can effectively avoid separating of sleeve pipe and bolt, is convenient to the installation of link, improved installation efficiency.
Above demonstration and described basic principle of the present utility model, major character and advantage.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 break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is by appending claims and equivalent circle thereof.
Claims (4)
1. a link, comprise bolt (1) and be socketed in the 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. according to the described link of any one in claim 1-3, it is characterized in that: described annular knurl (12) is straight-tooth shape annular knurl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320273772 CN203348272U (en) | 2013-05-20 | 2013-05-20 | Connection part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320273772 CN203348272U (en) | 2013-05-20 | 2013-05-20 | Connection part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203348272U true CN203348272U (en) | 2013-12-18 |
Family
ID=49748179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320273772 Expired - Fee Related CN203348272U (en) | 2013-05-20 | 2013-05-20 | Connection part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203348272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322006A (en) * | 2013-05-20 | 2013-09-25 | 昆山神昌精密金属制品有限公司 | Connecting piece |
-
2013
- 2013-05-20 CN CN 201320273772 patent/CN203348272U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322006A (en) * | 2013-05-20 | 2013-09-25 | 昆山神昌精密金属制品有限公司 | Connecting piece |
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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: 20131218 Termination date: 20140520 |