CN203631222U - Anti-loose rotational locking fixed core - Google Patents
Anti-loose rotational locking fixed core Download PDFInfo
- Publication number
- CN203631222U CN203631222U CN201320873823.6U CN201320873823U CN203631222U CN 203631222 U CN203631222 U CN 203631222U CN 201320873823 U CN201320873823 U CN 201320873823U CN 203631222 U CN203631222 U CN 203631222U
- Authority
- CN
- China
- Prior art keywords
- fixed core
- rotational lock
- lock fixed
- section
- loose
- 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 - Lifetime
Links
- 238000001746 injection moulding Methods 0.000 claims abstract description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model relates to an anti-loose rotational locking fixed core which comprises a threaded connection section (1). The anti-loose rotational locking fixed core is characterized in that the threaded connection section is connected with a riveting connection section (2), the riveting connection section is connected with an injection molding section (3), three convex-concave points (4) are uniformly distributed on the circumferential surface of the tail end of the injection molding section, and a 360-degree circumferential slot (5) is formed in the riveting connection section. The anti-loose rotational locking fixed core is used for the technical field of trumpet manufacture.
Description
technical field:
the utility model relates to loudspeaker manufacture technology field, especially relates to a kind of anti-loose rotational lock fixed core.
background technology:
one of core part that anti-loose rotational lock fixed core is car horn equipment, i.e. fixed core in car horn, its Main Function is to adopt swollen riveter skill to realize and being connected of loudspeaker housing, and produces satisfactory product.
the anti-loose rotational lock fixed core of existing one, is made up of the section of being threaded, riveting linkage section, injection moulding section successively, in the time producing car horn, adopts swollen riveter skill that fixed core is connected with loudspeaker housing, then support is connected with nut with loudspeaker.Due to the characteristic of swollen riveter skill itself, fixed core and housing contact portion after riveted joint have a projection, and now housing also needs to be connected with support, in order to be connected with support better and to guarantee relaxation effect, just need to increase an outer sawtooth butterfly gasket, increase its tightness and anti-loose property.But, increase the application of outer sawtooth butterfly gasket, increase cost, increase the assembly process being connected with support, reduce production efficiency, so the structure of this anti-loose rotational lock fixed core needs further improvement.
between superheater and economizer.Thoroughly solve the pollution of heating surface thereafter, stop up and wear problem.
utility model content:
the purpose of this utility model is to provide a kind of anti-loose rotational lock fixed core.
the purpose of this utility model is achieved in that
a kind of anti-loose rotational lock fixed core, its composition comprises: the section of being threaded, the described section of being threaded is connected with riveting linkage section, described riveting linkage section is connected with injection moulding section, on described injection moulding segment trailer periphery, be provided with three convex-concave points that are evenly distributed, the circumference fluting of 360 ° is set on described riveting linkage section.
described anti-loose rotational lock fixed core, described convex-concave point take the first center line of axial vane surface and the center line of another convex-concave point form angle α as 119 ° 30 '-120 ° 30 '.
described anti-loose rotational lock fixed core, described convex-concave point is take the distance a between the edge line of axial vane surface as 1.8mm.
described anti-loose rotational lock fixed core, described convex-concave point is with the corner radius of the radian R of the edge line of axial vane surface
a
for 3mm.
described anti-loose rotational lock fixed core, described convex-concave point is with the corner radius of the radian R of the edge line of axial vane surface
b
for 0.9mm.
described anti-loose rotational lock fixed core, described convex-concave point is take the chamfering D of sagittal plane as 0.5mm × 45.
described anti-loose rotational lock fixed core, described circumference fluting take the sideline of radial section and another side line formation angle β as 59 ° 30 '-60 ° 30 ', and divided equally by axis.
described anti-loose rotational lock fixed core, described circumference fluting is take the groove depth H of radial section as 1.6mm.
described anti-loose rotational lock fixed core, described circumference fluting is with the corner radius of the radian R of the edge line of radial section
c
for 0.6mm.
beneficial effect:
1. process three convex-concave points in injection moulding section, make fixed core be injection-moulded in rear defence spline in coil rack and move, prevent from getting loose; At riveting linkage section, a fluting is set, when guaranteeing its rivet force, adopts swollen riveting and turn over the technique that riveting knot is closed, realize the riveted joint of housing and fixed core, after riveted joint, can increase the tightness that housing is connected with fixed core like this.
2. application specific mould carries out riveting to fixed core, make after fixed core and housing riveted joint, on the periphery of the outstanding housing parts of riveted joint platform, form locking zigzag projection, guarantee the tightness that housing is connected with support, reduce the application of outer sawtooth butterfly gasket, save raw material, reduced cost; Increase the anticreep effect being connected with support, reduced assembly process, improved production efficiency.
accompanying drawing explanation:
accompanying drawing 1 is the utility model structural representation;
accompanying drawing 2 is the axial zoomed-in view of the utility model;
accompanying drawing 3 is partial enlarged drawing of the present utility model.
embodiment:
embodiment 1:
a kind of anti-loose rotational lock fixed core, its composition comprises: the section of being threaded 1, the described section of being threaded is connected with riveting linkage section 2, described riveting linkage section is connected with injection moulding section 3, on described injection moulding segment trailer periphery, be provided with three convex-concave points 4 that are evenly distributed, the circumference fluting 5 of 360 ° is set on described riveting linkage section.
embodiment 2:
according to the anti-loose rotational lock fixed core described in embodiment 1, described convex-concave point take the first center line of axial vane surface and the center line of another convex-concave point form angle α as 119 ° 30 '-120 ° 30 '.
embodiment 3:
according to the anti-loose rotational lock fixed core described in embodiment 1, described convex-concave point is take the distance a between the edge of axial vane surface as 1.8mm.
embodiment 4:
according to the anti-loose rotational lock fixed core described in embodiment 1, described convex-concave point is with the corner radius of the radian R of the edge line of axial vane surface
a
for 3mm.
embodiment 5:
according to the anti-loose rotational lock fixed core described in embodiment 1, described convex-concave point is with the corner radius of the radian R of the edge line of axial vane surface
b
for 0.9mm.
embodiment 6:
according to the anti-loose rotational lock fixed core described in embodiment 1, described convex-concave point is take the chamfering D of sagittal plane as 0.5mm × 45.
embodiment 7:
according to the anti-loose rotational lock fixed core described in embodiment 1, described circumference fluting take the sideline of radial section and another side line formation angle β as 59 ° 30 '-60 ° 30 ', and divided equally by axis.
embodiment 8:
according to the anti-loose rotational lock fixed core described in embodiment 1, described circumference fluting is take the groove depth H of radial section as 1.6mm.
embodiment 9:
according to the anti-loose rotational lock fixed core described in embodiment 1, described circumference fluting is with the corner radius of the radian R of the edge line of radial section
c
for 0.6mm.
Claims (9)
1. an anti-loose rotational lock fixed core, its composition comprises: the section of being threaded, it is characterized in that: the described section of being threaded is connected with riveting linkage section, described riveting linkage section is connected with injection moulding section, on described injection moulding segment trailer periphery, be provided with three convex-concave points that are evenly distributed, the circumference fluting of 360 ° is set on described riveting linkage section.
2. anti-loose rotational lock fixed core according to claim 1, is characterized in that: described convex-concave point take the first center line of axial vane surface and the center line of another convex-concave point form angle α as 119 ° 30 '-120 ° 30 '.
3. anti-loose rotational lock fixed core according to claim 1 and 2, is characterized in that: described convex-concave point is take the distance a between the edge line of axial vane surface as 1.8mm.
4. anti-loose rotational lock fixed core according to claim 1 and 2, is characterized in that: described convex-concave point is with the corner radius of the radian R of the edge line of axial vane surface
afor 3mm.
5. anti-loose rotational lock fixed core according to claim 1 and 2, is characterized in that: described convex-concave point is with the corner radius of the radian R of the edge line of axial vane surface
bfor 0.9mm.
6. anti-loose rotational lock fixed core according to claim 1 and 2, is characterized in that: described convex-concave point is take the chamfering D of sagittal plane as 0.5mm × 45.
7. anti-loose rotational lock fixed core according to claim 1 and 2, is characterized in that: described circumference fluting take the sideline of radial section and another side line formation angle β as 59 ° 30 '-60 ° 30 ', and divided equally by axis.
8. anti-loose rotational lock fixed core according to claim 1 and 2, is characterized in that: described circumference fluting is take the groove depth H of radial section as 1.6mm.
9. anti-loose rotational lock fixed core according to claim 1 and 2, is characterized in that: described circumference fluting is with the corner radius of the radian R of the edge line of radial section
cfor 0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320873823.6U CN203631222U (en) | 2013-12-29 | 2013-12-29 | Anti-loose rotational locking fixed core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320873823.6U CN203631222U (en) | 2013-12-29 | 2013-12-29 | Anti-loose rotational locking fixed core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203631222U true CN203631222U (en) | 2014-06-04 |
Family
ID=50817677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320873823.6U Expired - Lifetime CN203631222U (en) | 2013-12-29 | 2013-12-29 | Anti-loose rotational locking fixed core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203631222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714934A (en) * | 2013-12-29 | 2014-04-09 | 哈尔滨固泰电子有限责任公司 | Anti-loosening rotating locking fixed iron core |
-
2013
- 2013-12-29 CN CN201320873823.6U patent/CN203631222U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714934A (en) * | 2013-12-29 | 2014-04-09 | 哈尔滨固泰电子有限责任公司 | Anti-loosening rotating locking fixed iron core |
| CN103714934B (en) * | 2013-12-29 | 2016-08-24 | 哈尔滨固泰电子有限责任公司 | Anti-loose rotational lock fixed core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |