CN206268344U - Tool areole spring bushing - Google Patents
Tool areole spring bushing Download PDFInfo
- Publication number
- CN206268344U CN206268344U CN201621332581.XU CN201621332581U CN206268344U CN 206268344 U CN206268344 U CN 206268344U CN 201621332581 U CN201621332581 U CN 201621332581U CN 206268344 U CN206268344 U CN 206268344U
- Authority
- CN
- China
- Prior art keywords
- spring
- compression spring
- cylindrical compression
- steel wire
- hole
- 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 tool areole spring bushing, as made by cylindrical compression spring, the spring steel wire of cylindrical compression spring has square-section, it is characterised in that：Cylindrical compression spring is provided with the through hole through its side wall, the through hole is outputed between the circle up and down of cylindrical compression spring, the upper half of through hole is located at the lower surface of the upper circle steel wire of cylindrical compression spring, the lower half of through hole is located at the upper surface of the lower circle steel wire of cylindrical compression spring, the height dimension of the diameter less than spring steel wire of the through hole；Spring steel wire inner ring and outer ring same position simultaneously to centre extruding after form local intermediate projections, intermediate projections make between the circle up and down of cylindrical compression spring mutually at a distance from without mutual and tight.The utility model simple structure low cost, more conducively improves and the bonding strength between affiliated product, while the effective circumferential area of bushing endoporus is big.
Description
Technical field
The utility model is related to a kind of spring bushing for being applied to injection-compression molding product endoporus.
Background technology
To strengthen the interior hole strength of injection-compression molding product, the endoporus of injection-compression molding product generally sets metal lining, metal
Bushing is fixed together in injection-compression molding with plastics, and the cost of metal lining is of a relatively high, and to make metal lining with modeling
Material strong bonded in injection-compression molding, the outer surface of metal lining will also carry out annular groove processing and surface knurling or gear hobbing process.
If replacing metal lining with cylindrical compression spring as the inner bore bush of injection-compression molding product, although low cost, but bullet
Spring axial compression in injection-compression molding, can be simultaneously tight between the circle up and down of spring, and plastic material can not enter into the circle up and down of spring
Between and only in spring outer ring, cause the bond strength between bushing and plastics poor, when using easily occur loosen.Therefore,
Applicant also takes some solutions, and the number of applying for a patent 201420236326.X, a kind of practicality of title " spring housing "
New patent, but also have the following disadvantages, i.e., the gap between cylindrical compression spring is enclosed up and down is too small, it is impossible to realize improving very well
With the bonding strength between affiliated product, but gap is excessive and effective circumferential area of bushing endoporus can be caused to diminish.
The content of the invention
In view of the deficiency of background technology, the purpose of this utility model aims to provide a kind of simple structure low cost, more conducively
Improve and the bonding strength between affiliated product, while the big tool areole spring bushing of the effective circumferential area of bushing endoporus.
The utility model adopts the following technical scheme that to complete：
Tool areole spring bushing, as made by cylindrical compression spring, the spring steel wire of cylindrical compression spring has square
Section, it is characterised in that：Cylindrical compression spring is provided with the through hole through its side wall, and the through hole is in cylindrical compression spring
Outputed between enclosing up and down, the upper half of through hole is located at the lower surface of the upper circle steel wire of cylindrical compression spring, the lower subluxation of through hole
In the upper surface of the lower circle steel wire of cylindrical compression spring, the height dimension of the diameter less than spring steel wire of the through hole.
Spring steel wire forms local intermediate projections after the same position of inner ring and outer ring is extruded to centre simultaneously, middle
Projection makes between the circle up and down of cylindrical compression spring mutually at a distance from without mutual and tight.
After adopting the above technical scheme, the setting that spring bushing passes through areole first, it is possible to resolve on cylindrical compression spring
The too small problem in gap between lower circle, therefore simple structure low cost, more conducively improve and the connection between affiliated product is strong
Degree；Secondly, make cylindrical compression spring up and down enclose between mutually at a distance from without mutual and tight intermediate projections, be by
Simultaneously to being formed after the extruding of centre, one can make the material that spring inner ring participates in deformation tail off to the Internal and external cycle of spring steel wire, deform
Simply, tailed off secondly participating in the material for deforming due to spring inner ring, so effective circumferential area of bushing endoporus can be made big.
Brief description of the drawings
The utility model has drawings described below：
Fig. 1 is structural representation of the present utility model,
Fig. 2 amplifies for the A-A sectional views of Fig. 1.
Specific embodiment
As illustrated, tool areole spring bushing of the present utility model, as made by cylindrical compression spring, cylinder compression bullet
The spring steel wire 1 of spring has square-section, and cylindrical compression spring is provided with the through hole 3 through its side wall, and the through hole 3 is in circle
Outputed between the circle up and down of post compression spring, the upper half of through hole 3 is located at the lower surface of the upper circle steel wire of cylindrical compression spring, passes through
The lower half of through hole is located at the upper surface of the lower circle steel wire of cylindrical compression spring, and the diameter of the through hole 3 is less than spring steel wire 1
Height dimension；Spring steel wire 1 forms local intermediate projections 2 after the same position of inner ring and outer ring is extruded to centre simultaneously,
Intermediate projections 2 make between the circle up and down of cylindrical compression spring mutually at a distance from without mutual and tight.
Claims (2)
1. areole spring bushing had, and as made by cylindrical compression spring, the spring steel wire of cylindrical compression spring has square section
Face, it is characterised in that：Cylindrical compression spring is provided with the through hole through its side wall, and the through hole is in the upper of cylindrical compression spring
Outputed between lower circle, the upper half of through hole is located at the lower surface of the upper circle steel wire of cylindrical compression spring, the lower half of through hole is located at
The upper surface of the lower circle steel wire of cylindrical compression spring, the height dimension of the diameter less than spring steel wire of the through hole.
It is 2. as claimed in claim 1 to have areole spring bushing, it is characterised in that：Spring steel wire is identical inner ring and outer ring
Simultaneously to forming local intermediate projections after the extruding of centre, intermediate projections make between the circle up and down of cylindrical compression spring mutually for position
At a distance from without mutual and tight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621332581.XU CN206268344U (en) | 2016-12-07 | 2016-12-07 | Tool areole spring bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621332581.XU CN206268344U (en) | 2016-12-07 | 2016-12-07 | Tool areole spring bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206268344U true CN206268344U (en) | 2017-06-20 |
Family
ID=59043797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621332581.XU Expired - Fee Related CN206268344U (en) | 2016-12-07 | 2016-12-07 | Tool areole spring bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206268344U (en) |
-
2016
- 2016-12-07 CN CN201621332581.XU patent/CN206268344U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20191207 |