CN220374256U - Single spring sunshade curtain extension rod - Google Patents
Single spring sunshade curtain extension rod Download PDFInfo
- Publication number
- CN220374256U CN220374256U CN202322087949.7U CN202322087949U CN220374256U CN 220374256 U CN220374256 U CN 220374256U CN 202322087949 U CN202322087949 U CN 202322087949U CN 220374256 U CN220374256 U CN 220374256U
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- China
- Prior art keywords
- spring
- rod body
- rod
- single spring
- extension rod
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 13
- 230000030279 gene silencing Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
The utility model relates to a single-spring sunshade extension rod which comprises a rod body, wherein two end covers which are slidably supported on a sunshade driving track are respectively arranged at two ends of the rod body, a spring is connected in the rod body in a penetrating manner, and two ends of the spring are connected with pull ropes penetrating out of the end covers. More than two guide bosses are axially arranged on the periphery of the spring along the rod body, and the guide bosses are axially inserted into axial grooves on the inner wall of the rod body. The pull ropes are pulled outwards from two sides of the single spring, the elastic precision of the single spring is consistent in the synchronous pulling process of the pull ropes from two sides, and compared with the two springs from two sides, the influence of long-term operation on the stretching precision can be effectively avoided, and the stretching synchronous performance is improved.
Description
Technical Field
The utility model relates to a sunroof sunshade screen technology, in particular to a single-spring sunshade screen extension rod.
Background
With the advancement of automobile technology, the performance requirements of sun shades for automobile sunroofs are increasingly improved, and the prior application of patents by the applicant is that: 2016200763892, the curtain is pulled by the cord pulling wire to drive the curtain to move forward to open, and the spring buffer end is eliminated when the curtain is wound, so that the curtain is stopped at any position to realize winding. Because the curtain cloth is of a flexible structure, the curtain cloth needs to be elastically buffered and pulled by a spring and the elastic buffering is eliminated, and the pulling acting force on the curtain cloth easily causes middle deformation of the front end of the curtain cloth, thereby influencing the attractive appearance and the usability. In addition, as the two ends are independently driven by the two springs, the elastic performance of the curtain cloth is different, even if the difference precision is better, the performance difference is gradually obvious when the curtain cloth is in a stretching operation state for a long time, the two sides are easy to pull out of step, the sliding noise, the deflection blocking and even the blocking of the curtain cloth pulling end cover exist, and the safety and the stable unreeling of the curtain cloth are influenced.
Disclosure of Invention
The utility model provides the single-spring sunshade curtain extension rod which has a simple structure and stable pulling synchronization performance.
The technical scheme adopted by the utility model is as follows: the utility model provides a single spring sunshade screen extension pole, includes the body of rod, and the both ends of the body of rod set up two respectively and slide the end cover of support on sunshade screen drive track, its characterized in that: a spring is connected in the rod body in a penetrating way, and two ends of the spring are connected with a pull rope penetrating out of the end cover.
Further, more than two guide bosses are axially arranged on the periphery of the spring along the rod body, and the guide bosses are axially inserted into axial grooves on the inner wall of the rod body.
Further, a mandrel which is axially penetrated in the spring is connected between the two end covers.
Further, the outer wall of the mandrel and/or the inner wall of the rod body are/is provided with a silencing felt.
Further, the axial center of the rod body is connected with a bolt in a penetrating mode, and the bolt is inserted into the middle position of the spring.
By adopting the technical scheme, the utility model has the beneficial effects that:
1. the pull ropes are pulled outwards from two sides of the single spring, the elastic precision of the single spring is consistent in the synchronous pulling process of the pull ropes from two sides, and compared with the two springs from two sides, the influence of long-term operation on the stretching precision can be effectively avoided, and the stretching synchronous performance is improved.
2. The middle of the single spring is inserted and positioned by a bolt, so that the stretching synchronization precision towards two sides is further improved.
3. The guide boss is matched with the axial groove of the rod body, so that the spring can be prevented from rotating in the rod body, normal and stable stretching of the spring is affected, and the synchronism of two-side operation is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of an extension rod according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a second embodiment of an extension rod according to the present utility model;
fig. 4 is a schematic view of a three-extension rod structure according to an embodiment of the present utility model.
In the figure: the sunshade curtain driving guide rail 1, the scroll 2, the curtain cloth 3, the paying-off wheel 4, the paying-off motor 5, the stay cord 6, the reversing pulley 7, the rod body 8, the end cover 9, the spring 10, the guide boss 11, the axial groove 12 and the bolt 13.
Detailed Description
Further description is provided below with reference to the drawings and examples.
In the first embodiment shown in fig. 1 and 2, the front end of the rolling cloth 3 is wound by the extension rod, the rear end of the curtain cloth 3 is wound on the roller 2, the outer end of the roller 2 is provided with the paying-off wheel 4, the paying-off wheel 4 is externally connected with the paying-off motor 5, the paying-off motor 5 pays out the pull rope 6, and the pull rope 6 is wound on the reversing pulley 7 at the front end of the sunshade screen driving rail 1 and then penetrates through the end cover 9 of the end part of the roller 2 to slide on the sunshade screen driving rail 1. In the single-spring sunshade extension rod of the embodiment, two end covers 9 which are slidably supported on a sunshade driving track are respectively arranged at two ends of a rod body 8, a spring 10 is connected in the rod body 8 in a penetrating manner, and two ends of the spring 10 are connected with a pull rope 6 penetrating out of the end covers.
The second embodiment shown in fig. 1 and 3 is different from the first embodiment in that: more than two guide bosses 11 are axially arranged on the periphery of the spring 10 along the rod body 8, and the guide bosses 11 are axially inserted into axial grooves 12 on the inner wall of the rod body 8.
Because the length of the single spring is longer, the guide boss can be provided with a plurality of evenly distributed and symmetrical guide bosses, and synchronous guide rotation prevention during stretching of two sides is ensured. In fig. 3, the spring is a schematic line drawing, the guide boss is arranged on the outer ring of the spring in a relative structure, and the drawing is a schematic drawing.
The third embodiment shown in fig. 1 and 4 differs from the first embodiment in that: the axial center of the rod body 8 is connected with a bolt 13 in a penetrating way, and the bolt 13 is inserted into the middle position of the spring 10.
On the basis of the embodiment, a mandrel which is axially connected in the spring in a penetrating way is connected between the two end covers, so that the stability, torsion resistance and radial deformation resistance of the spring stay cord are further improved. And a silencing felt can be arranged on the outer wall of the mandrel and/or the inner wall of the rod body, so that hard impact damage is avoided, and noise is reduced.
Claims (5)
1. The utility model provides a single spring sunshade screen extension pole, includes the body of rod, and the both ends of the body of rod set up two respectively and slide the end cover of support on sunshade screen drive track, its characterized in that: a spring is connected in the rod body in a penetrating way, and two ends of the spring are connected with a pull rope penetrating out of the end cover.
2. The single spring shade extension rod of claim 1, wherein: more than two guide bosses are axially arranged on the periphery of the spring along the rod body, and the guide bosses are axially inserted into axial grooves on the inner wall of the rod body.
3. A single spring shade extension rod as defined in claim 1, wherein: a mandrel which is axially connected in the spring in a penetrating way is connected between the two end covers.
4. A single spring shade extension rod as defined in claim 3, wherein: and the outer wall of the mandrel and/or the inner wall of the rod body are/is provided with a silencing felt.
5. A single spring shade extension rod as defined in claim 1, wherein: the axial center of the rod body is connected with a bolt in a penetrating way, and the bolt is inserted into the middle position of the spring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2023220298573 | 2023-07-31 | ||
| CN202322029857 | 2023-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220374256U true CN220374256U (en) | 2024-01-23 |
Family
ID=89564519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322087949.7U Active CN220374256U (en) | 2023-07-31 | 2023-08-04 | Single spring sunshade curtain extension rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220374256U (en) |
-
2023
- 2023-08-04 CN CN202322087949.7U patent/CN220374256U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |