CN103758842A - Thread bushing structure - Google Patents
Thread bushing structure Download PDFInfo
- Publication number
- CN103758842A CN103758842A CN201410042952.XA CN201410042952A CN103758842A CN 103758842 A CN103758842 A CN 103758842A CN 201410042952 A CN201410042952 A CN 201410042952A CN 103758842 A CN103758842 A CN 103758842A
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- CN
- China
- Prior art keywords
- bushing
- edge
- edge cover
- cover
- seat
- 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.)
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- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a thread bushing structure. The thread bushing structure comprises a bushing base and a bushing. The bushing is installed inside the bushing base, the bushing is provided with an internal thread used for installing a bolt, the periphery of the bushing is provided with at least one annular groove, the bushing and the bushing base are cast together, and the material of the bushing base is cast into the groove. According to the thread bushing structure, the bushing can be prevented from disengaging or being pulled out, the using requirements are met, leakage caused by pull and disengagement of the bushing is effectively prevented, cost generated in the product manufacturing process is reduced, and the reliability of the product is improved.
Description
Technical field
The present invention relates to mechanical parts field, particularly a kind of screw thread structure of mosaic.
Background technique
In engine oil path connects, often relate to a kind of worm structure with edge cover, such as the turnover oilhole edge cover on diesel oil filter seat, cross oil draining bolt and screw in this edge cover.But, turnover oilhole on existing diesel oil filter seat edge cover only has radially spacing, do not have in the axial direction spacing, in assembling oil draining bolt make-up torque process, edge cover easily gets loose, under responsive to axial force, edge cover, easily along axially extracting, causes occurring the fault of leakage of oil in batches in test-run a machine process.
Summary of the invention
The present invention is in order to overcome defect in above-mentioned prior art, and a kind of screw thread structure of mosaic is provided, and restriction edge cover play in the axial direction, guarantees when make-up torque, can not extract, get loose, and meets usage requirement.
For achieving the above object, the invention provides a kind of screw thread structure of mosaic, comprising: edge seat; Edge cover, it is inner that this edge cover is installed on edge seat, and edge tackling has the internal thread for construction bolt, and at outer at least one annular groove that is arranged with of edge cover, edge cover is cast and is formed together with edge seat, and the material of edge seat is cast in groove.
In technique scheme, the periphery of edge cover is straight strand annular knurl or polygon prismatic.
In technique scheme, internal thread and the peripheral coaxality of inlaying cover.
Compared with prior art, the present invention has following beneficial effect: by overlapping periphery design annular groove at edge, when using this worm structure, even when bolt is applied to larger make-up torque, edge cover can not get loose or be pulled out yet, and meets usage requirement, has effectively prevented that edge cover from being caused occurring the fault of seepage by pull-off, reduce the cost of manufacture course of products, improved the reliability of product.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of screw thread structure of mosaic of the present invention;
Fig. 2 is along A-A direction sectional view in Fig. 1.
Mark the following drawings mark thereon by reference to the accompanying drawings:
1-inlays seat, and 2-inlays cover, 21-annular groove, 3-combination mat, 4-bolt.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subject to the restriction of embodiment.
As shown in Figures 1 and 2, a kind of screw thread structure of mosaic of the present invention is mainly to design in order to prevent the edge axial pull-off of cover, the screw thread structure of mosaic that the present embodiment provides mainly comprises edge seat 1 and edge cover 2, edge cover 2 casting together with edge seat 1 forms and this edge cover 2 casts from edge seat 1 inside, edge cover 2 internal threads (unmarked in figure) that have for construction bolt, as a kind of preferred embodiment, this screw thread structure of mosaic has the function of radially spacing and axial limiting simultaneously, guarantees reliability when bolt is screwed into the interior also make-up torque of this edge cover 2.Radially spacing in order to realize, the periphery of edge cover 2 can be designed as straight strand annular knurl (referring to Fig. 2) or polygon prismatic, edge cover 2 is cast into the rotation that edge seat can prevent edge cover 2 at 1 o'clock, in order to realize axial limiting, at outer at least one annular groove 21 that is arranged with of edge cover 2, it is example that the present embodiment be take 2 annular grooves 21, the material of edge seat 1 is cast in annular groove can axially block edge cover 2, limit edge cover 2 play in the axial direction, guaranteed that edge overlaps 2 and can not extract, get loose, met usage requirement.
When the internal thread of processing edge cover 2, to guarantee tapped hole and the peripheral coaxality of inlaying cover 2, guarantee that coaxality is below ￠ 0.4mm.When using this screw thread structure of mosaic, bolt 4(is such as crossing oil draining bolt) be screwed into while inlaying the internal thread that overlaps 2, can increase combination mat 3, even bolt 4 is applied to larger make-up torque, edge cover 2 can not get loose or be pulled out yet, and meets usage requirement, has effectively prevented that edge cover 2 from being caused occurring the fault of seepage by pull-off, reduce the cost of manufacture course of products, improved the reliability of product.
Disclosed is above only specific embodiments of the invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (3)
1. a screw thread structure of mosaic, is characterized in that, comprising:
Edge seat;
Edge cover, it is inner that this edge cover is installed on described edge seat, and described edge tackling has the internal thread for construction bolt, outer at least one annular groove that is arranged with overlapping at described edge, described edge cover is cast and is formed together with described edge seat, and the material of described edge seat is cast in described groove.
2. screw thread structure of mosaic according to claim 1, is characterized in that, the periphery of described edge cover is straight strand annular knurl or polygon prismatic.
3. screw thread structure of mosaic according to claim 1, is characterized in that, the peripheral coaxality of described internal thread and described edge cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410042952.XA CN103758842A (en) | 2014-01-29 | 2014-01-29 | Thread bushing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410042952.XA CN103758842A (en) | 2014-01-29 | 2014-01-29 | Thread bushing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103758842A true CN103758842A (en) | 2014-04-30 |
Family
ID=50526133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410042952.XA Pending CN103758842A (en) | 2014-01-29 | 2014-01-29 | Thread bushing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103758842A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113238337A (en) * | 2021-04-21 | 2021-08-10 | 北京空间机电研究所 | Off-axis three-reflection surveying and mapping camera supporting frame structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001099127A (en) * | 1999-09-28 | 2001-04-10 | Keyence Corp | Female screw structure and mounting hole structure for photoelectric switch |
| CN201351667Y (en) * | 2009-02-12 | 2009-11-25 | 戚承坚 | Anti-theft device for automobile wheels |
| CN201412430Y (en) * | 2009-04-23 | 2010-02-24 | 贵州航天精工制造有限公司 | Auto-locking turnbuckle for reinforcing the intensity of low-intensity engineering material matrix screw hole |
| CN202833546U (en) * | 2012-10-12 | 2013-03-27 | 力帆实业(集团)股份有限公司 | Thread bushing connection assembly |
| CN203670414U (en) * | 2014-01-29 | 2014-06-25 | 广西玉柴机器股份有限公司 | Threaded bushing structure |
-
2014
- 2014-01-29 CN CN201410042952.XA patent/CN103758842A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001099127A (en) * | 1999-09-28 | 2001-04-10 | Keyence Corp | Female screw structure and mounting hole structure for photoelectric switch |
| CN201351667Y (en) * | 2009-02-12 | 2009-11-25 | 戚承坚 | Anti-theft device for automobile wheels |
| CN201412430Y (en) * | 2009-04-23 | 2010-02-24 | 贵州航天精工制造有限公司 | Auto-locking turnbuckle for reinforcing the intensity of low-intensity engineering material matrix screw hole |
| CN202833546U (en) * | 2012-10-12 | 2013-03-27 | 力帆实业(集团)股份有限公司 | Thread bushing connection assembly |
| CN203670414U (en) * | 2014-01-29 | 2014-06-25 | 广西玉柴机器股份有限公司 | Threaded bushing structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113238337A (en) * | 2021-04-21 | 2021-08-10 | 北京空间机电研究所 | Off-axis three-reflection surveying and mapping camera supporting frame structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140430 |