Sunshade curtain fabric tensioning structure
By introducing a combination of tension springs, steel wire ropes, and guide pulleys into the sunshade curtain, the problem of loosening and sinking of the curtain fabric during rolling is solved, achieving stable tension of the curtain fabric during the rolling process and improving the performance and stability of the sunshade curtain.
Patent Information
- Application Number
- CN202422771607.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-14
AI Technical Summary
Traditional sunshade curtains often have issues with the fabric sag when closed because the extension rod doesn't loosen and the curtain sinks, leading to spring failure, insufficient winding force, and loosening and sinking.
It adopts a combination structure of tension spring, pull cord buckle, tension steel wire rope, guide pulley and fixed pulley. Through the design of tension channel and guide groove, it ensures that the curtain fabric remains taut during the winding process, and uses spring sleeve to reduce friction and abnormal noise.
It effectively maintains the tension of the curtain fabric during the rolling process, improves performance, reduces friction and noise, and ensures stable use of the sunshade curtain.
Smart Images
Figure CN223523650U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sunroof sunshade curtain structure, in particular to a sunshade curtain fabric tensioning structure. BACKGROUND
[0002] With the popularity of sunroof on vehicles, the use performance requirement of the matched sunshade curtain is increasingly improved, the curtain fabric of the traditional sunshade curtain is not loose and sinks when closing due to the extension rod pulling, for this, the coil spring is arranged at the side edge of the curtain fabric, but with the frequent winding of the fabric and the gradual winding at a time, the coil spring is easy to fail, the winding force is smaller when winding to the tail part, and the loose sinking problem still exists. SUMMARY
[0003] The utility model provides a sunshade curtain fabric tensioning structure which is simple in structure and can effectively ensure that the curtain fabric is always tensioned when winding.
[0004] The utility model discloses a sunshade curtain fabric tensioning structure, which is characterized by comprising a tension spring, a pull line buckle, a tension steel wire rope, a guide pulley and a fixed pulley, a tension channel is arranged in the extension rod, a tension spring is arranged in the tension channel, or two tension springs are symmetrically arranged in the tension channel, the inner side of the two tension springs is fixedly connected with the extension rod, the outer side of the tension spring is connected with a tension steel wire rope which is inserted in the tension channel through the pull line buckle, the both ends of the extension rod are inserted with sliding blocks, the sliding blocks are provided with a tension guide channel and a tension guide groove, the guide pulley is rotatably inserted in the tension guide groove through a vertical column, the tension steel wire rope is outwardly inserted into the tension guide channel corresponding to the left and right channel parts of the extension rod, and is guided out of the guide pulley and then sent out through the front and rear channel parts of the tension guide channel, the tension steel wire rope is sent out forward and then reversely sent out through the fixed pulley arranged at the non-winding shaft end of the sunshade curtain, and the tension steel wire rope is reversely sent out and wound on the winding shaft or the winding wheel connected with the winding shaft.
[0005] A spring sheath is arranged in the tension channel, and the tension steel wire rope and the tension spring are inserted in the spring sheath.
[0006] The spring sheath is a rubber sheath or a nylon sheath.
[0007] A plurality of buckling columns are arranged in the pull line buckle, and the tension steel wire rope can be adjustably connected with any buckling column.
[0008] The tension steel wire rope is independent or connected with the curtain fabric side edge.
[0009] When the tensioning structure is used, the extension rod is retracted to open the sunshade curtain, and the curtain fabric is wound on the winding shaft, when the tension steel wire rope is wound on the winding wheel, the tension of the tension steel wire rope is controlled through the tension spring, so that the curtain fabric can be always tensioned during the winding process, the use performance is improved, the spring sheath can reduce the friction and abnormal sound in the channel, and the stable use in the channel is further ensured. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;
[0011] Figure 2 It is Figure 1 the explosion map;
[0012] Figure 3 It is Figure 1 the enlarged view of A in the figure.
[0013] In the figure: extension rod 1, tensioning channel 2, spring sheath 3, tension spring 4, pull line buckle 5, buckle joint column 6, tension steel wire rope 7, sliding block 8, tension guide channel left and right channel 9, tension guide channel front and back channel 10, tension guide groove 11, vertical column 12, guide pulley 13, fixed pulley 14. DETAILED DESCRIPTION
[0014] The following is further illustrated in combination with the drawings and examples.
[0015] Figures 1-3 As shown: a sunshade curtain fabric tensioning structure, comprising extension rod 1, spring sheath 3, tension spring 4, pull line buckle 5, tension steel wire rope 7, sliding block 8 and guide pulley 13. Tensioning channel 2 is arranged in extension rod 1, spring sheath 3 is arranged in tensioning channel 2, two tension springs 4 are symmetrically arranged in spring sheath 3, the inner side of two tension springs 4 is fixedly connected with spring sheath or extension rod, and the outer side of tension spring 3 is connected with tension steel wire rope 7 through pull line buckle 5, a plurality of buckle joint columns 6 in the direction of tensioning channel and any one of tension steel wire rope 7; the two ends of extension rod 1 are inserted into sliding block 8, tension guide channel and tension guide groove 11 are arranged on sliding block 8, guide pulley 13 is rotatably connected in tension guide groove 11 through vertical column 12, tension steel wire rope 7 is connected in tension guide channel in spring sheath, is connected with tension guide channel left and right channel 9 part of extension rod in tension guide channel out of the spring sheath and is guided through the outer side of guide pulley 13, and is sent out through tension guide channel front and back channel 10 part of tension guide channel of the tension guide channel, the tension steel wire rope is sent out in front and is guided through fixed pulley 14 arranged at the non-reel end of the sunshade curtain and is sent out in back, and the tension steel wire rope is sent out in back and is wound on the reel or the winding wheel connected with the reel.
[0016] In the embodiment, the spring sheath is selected to be rubber sheath or nylon sheath.
[0017] In the embodiment, the tension steel wire rope can be independent or connected with the curtain fabric side edge.
Claims
1. A shade fabric tensioning structure, characterized by: It includes tension spring, pull line buckle, tension steel wire rope, guide pulley and fixed pulley, the extension rod is provided with tension channel, the tension channel is provided with one tension spring, or the tension channel is provided with two tension springs symmetrically, the inner side of the two tension springs is fixedly connected with the extension rod, the outer side of the tension spring is connected with the tension steel wire rope which is inserted in the tension channel through the pull line buckle, the both ends of the extension rod are inserted with sliding block, the sliding block is provided with tension guide channel and tension guide groove, the tension guide groove is rotatably inserted with guide pulley through vertical column, the tension steel wire rope is outwardly inserted in the tension guide channel corresponding to the left and right channel part of the extension rod and is sent out through the front and back channel part of the tension guide channel after being guided outside the guide pulley, the tension steel wire rope is sent forward and is reversely sent backward by being wound around the fixed pulley which is arranged at the non-reel end of the sunshade curtain, the tension steel wire rope is sent backward and is wound around the winding wheel which is connected with the reel or outside the reel.
2. A shade fabric tensioning structure according to claim 1, characterized in that: The spring sheath is arranged in the tension channel, and the tension steel wire rope and the tension spring are inserted in the spring sheath.
3. A shade fabric tensioning structure according to claim 2, wherein: The spring sheath is a rubber sheath or a nylon sheath.
4. The shade fabric tensioning structure according to claim 1, wherein: The pull line buckle is provided with a plurality of buckling columns, and the tension steel wire rope can be adjustably connected with any buckling column.
5. The shade fabric tensioning structure according to claim 1, wherein: The tension steel wire rope is independent or connected with the curtain fabric side edge.