CN217073997U - Spring connecting structure for roller of sun-shading curtain of automobile skylight - Google Patents
Spring connecting structure for roller of sun-shading curtain of automobile skylight Download PDFInfo
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- CN217073997U CN217073997U CN202122514700.0U CN202122514700U CN217073997U CN 217073997 U CN217073997 U CN 217073997U CN 202122514700 U CN202122514700 U CN 202122514700U CN 217073997 U CN217073997 U CN 217073997U
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- torsion spring
- connecting shaft
- clamping
- spring
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Abstract
The utility model discloses a spring connecting structure for a roller blind of an automobile skylight, which comprises a connecting shaft and a torsional spring, wherein one end of the connecting shaft is sheathed and connected with a roller blind pipe for winding a sun blind, the other end of the connecting shaft is radially provided with a clamping hole, the hole wall of one side of the clamping hole is provided with a guide part with an inclined surface facing into the hole at the hole opening, and the other end of the connecting shaft axially extends out of a torsional spring clamping support part; one end of the torsion spring connected with the connecting shaft is bent along the radial direction to form a hook clamping part; the outer diameter of the torsion spring clamping and supporting part is smaller than the outer diameter of the shaft body of the connecting shaft, and the outer diameter of the torsion spring clamping and supporting part is matched with the inner diameter of the torsion spring; during assembly, the hook clamping part of the torsion spring is smoothly clamped into the clamping hole through the guide part only by rotating the connecting shaft or the torsion spring, so that the assembly of the torsion spring and the connecting shaft is completed, a special assembly tool is saved, and the assembly time is reduced; and meanwhile, the number of turns of the torsion spring sleeved on the torsion spring clamping supporting part can be reduced.
Description
Technical Field
The utility model relates to an sunroof technical field especially relates to a spring coupling structure for sunroof sunshade screen spool.
Background
The traditional spring connection mode of the roller shutter shaft of the automobile sun-shading curtain adopts a spiral groove formed by tightly holding a spiral spring (torsion spring) on a connecting shaft, and the spiral spring is tightly connected with the connecting shaft through the radial and axial elasticity of the spiral spring which is stretched and deformed. The connection mode usually has higher requirement on the assembly elasticity of the coil spring, and the spiral groove with more circles needs to be arranged for assembly, so that the occupied space is large; the spiral assembly elasticity is large, the torsion spring needs to be stretched by a special spiral tool, and the production assembly difficulty and the production cost are high; while there is also a risk of rotational loosening. Therefore, a spring connection structure of a shade roller is needed to solve the problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a spring coupling structure for sunroof sunshade screen spool to solve among the prior art and adopt helical spring elasticity to hold the mode of holding tightly and take occupation space big, have the technical problem of the risk that rotatory pine takes off when connecting the connecting axle.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model discloses a spring coupling structure for sunroof sunshade screen spool, including connecting axle, torsional spring, the one end of connecting axle and the roller shutter pipe socket joint that is used for coiling the sunshade screen, the other end of connecting axle has seted up the joint hole along radial, one of them side pore wall in joint hole is provided with a slope in the drill way and faces downthehole guide portion, the other end of connecting axle extends a torsional spring joint supporting part along the axial; one end of the torsion spring connected with the connecting shaft is bent along the radial direction to form a hook clamping part; the external diameter of torsional spring joint supporting part is less than the axis body external diameter of connecting axle, the external diameter of torsional spring joint supporting part with the internal diameter phase-match of torsional spring.
The further improvement lies in that an inclined plane transition section is arranged between the connecting shaft and the torsion spring clamping supporting part.
The further improvement lies in that the radial section of the torsion spring clamping support part is in a cross shape.
The utility model discloses a spring coupling structure for sunroof sunshade screen spool, through setting up along radial joint hole at the tip of connecting axle, the pore wall in joint hole sets up the guide portion of slope to downthehole in drill way department, and a pot head of torsional spring is established at torsional spring joint supporting part, during the assembly, only need through rotatory connecting axle or torsional spring, make the crotch joint portion of torsional spring smoothly block into to the joint downthehole through the guide portion of drill way department in joint hole, can accomplish the assembly of torsional spring and connecting axle, save special assembly fixture, reduce assembly man-hour; the required torque between the torsion spring and the connecting shaft is provided by the radial hook clamping part and the clamping hole, so that the number of turns of the torsion spring sleeved on the torsion spring clamping supporting part can be reduced, and the layout space is saved; the hook clamping part is inserted into the clamping hole, so that the stability between the torsion spring and the connecting shaft can be ensured, and the risk of rotation loosening is solved.
Drawings
FIG. 1 is a schematic view of a spring coupling structure of a roller blind shaft of a sunshade of an automobile in the prior art;
FIG. 2 is a schematic view of a spring connection structure of a roller shutter shaft of the sunshade of the present invention;
FIG. 3 is a schematic view of a spring connection structure of a roller shutter shaft of the sunshade of the present invention;
FIG. 4 is a schematic view of a radial cross-sectional structure of the connecting shaft at the position of the snap-fit hole;
fig. 5 is a schematic radial sectional structure view of the torsion spring clamping support part.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the conventional roller blind shaft of the sun blind is connected by a spring in a manner that a torsion spring 2 is tightly held in a spiral groove 11 at the end of a connecting shaft 1, and when the roller blind is assembled, the end of the torsion spring is spread by a special tool, and then the tool is released to tightly hold the torsion spring in the spiral groove 11, so that the torsion spring and the spiral groove are stretched to generate radial and axial elasticity, thereby realizing the transmission of torque.
As shown in fig. 2-5, the utility model provides a spring coupling structure for sunroof roller blind, including connecting axle 1, torsional spring 2, one end of connecting axle 1 cup joints with the roller blind pipe (not shown in the figure) that is used for coiling the sunshade screen, the other end of connecting axle 1 has seted up joint hole 10 along radial, the other end of connecting axle 1 extends a torsional spring joint supporting part 12 along the axial, one of them side pore wall of joint hole 10 is provided with an inclined plane towards downthehole guide part 13 at the drill way; one end of the torsion spring 2 connected with the connecting shaft 1 is bent along the radial direction, namely the end part of the spring body is bent along the radial direction to form a hook clamping part 21; the external diameter of torsional spring joint supporting part 21 is less than the axis body external diameter of connecting axle 1, the external diameter of torsional spring joint supporting part 21 with the internal diameter phase-match of torsional spring 2. During the assembly, with 2 tip overcoat of wind spring on torsional spring joint supporting part 21, rotatory connecting axle 1 or torsional spring 2 make the crotch joint portion 21 of torsional spring 2 lead through the guide 13 of the orifice department of joint hole 10, block smoothly into to joint hole 10 in, can accomplish the assembly of torsional spring 2 and connecting axle 1, save special assembly fixture, reduce assembly man-hour.
The utility model discloses an optimal mode does, connecting axle 1 with be equipped with inclined plane changeover portion 14 between the torsional spring joint supporting part 21, when the assembly, the surface of connecting axle 1 is reachd to hook joint portion 21 accessible inclined plane changeover portion 14.
As shown in FIG. 5, the further improvement is that the radial section of the torsion spring clamping support part 12 is cross-shaped, and a non-solid cylindrical structure is adopted, which is beneficial to reducing the weight of parts.
The required torque between the torsion spring and the connecting shaft is provided by the radial hook clamping part 21 matched with the clamping hole 10, so that the number of turns of the torsion spring sleeved on the torsion spring clamping supporting part can be reduced, and the layout space is saved; the hook clamping part is inserted into the clamping hole, so that the stability between the torsion spring and the connecting shaft can be ensured, and the risk of rotation loosening is solved.
It should be understood that the directional terms are set forth in conjunction with the daily operating habits of the operator and the user and the drawings of the specification, and their presence should not affect the scope of the present invention.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.
Claims (3)
1. The spring connecting structure for the roller of the sun-shading curtain of the automobile skylight is characterized by comprising a connecting shaft and a torsion spring, wherein one end of the connecting shaft is connected with the roller tube for winding the sun-shading curtain, the other end of the connecting shaft is radially provided with a clamping hole, a hole wall on one side of the clamping hole is provided with a guide part with an inclined surface facing into the hole at a hole opening, and the other end of the connecting shaft axially extends out of a torsion spring clamping supporting part; one end of the torsion spring connected with the connecting shaft is bent along the radial direction to form a hook clamping part; the external diameter of torsional spring joint supporting part is less than the axis body external diameter of connecting axle, the external diameter of torsional spring joint supporting part with the internal diameter phase-match of torsional spring.
2. The spring coupling structure for a roll shaft of a sun blind for an automobile sunroof according to claim 1, wherein an inclined transition section is provided between the coupling shaft and the torsion spring clamping support portion.
3. The spring coupling structure for a roll shaft of a sun blind for an automobile sunroof according to claim 1, wherein a radial cross section of the torsion spring catching support part is cross-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122514700.0U CN217073997U (en) | 2021-10-19 | 2021-10-19 | Spring connecting structure for roller of sun-shading curtain of automobile skylight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122514700.0U CN217073997U (en) | 2021-10-19 | 2021-10-19 | Spring connecting structure for roller of sun-shading curtain of automobile skylight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217073997U true CN217073997U (en) | 2022-07-29 |
Family
ID=82496582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122514700.0U Active CN217073997U (en) | 2021-10-19 | 2021-10-19 | Spring connecting structure for roller of sun-shading curtain of automobile skylight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217073997U (en) |
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2021
- 2021-10-19 CN CN202122514700.0U patent/CN217073997U/en active Active
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