Tensioning mechanism of sunshade curtain cloth
By designing a winding drum and a tensioning mechanism with coil springs, the problem of loose and sagging sunshade curtains is solved, achieving a taut curtain effect, suitable for horizontally arranged curtains.
Patent Information
- Application Number
- CN202520500121.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-03-21
AI Technical Summary
Sunshade curtains are prone to loosening and collapsing when not taut, which affects the appearance, especially when installed on the roof of a car.
A tensioning mechanism including a winding drum, a winding device, and a coil spring was designed to tighten the curtain fabric through the action of the coil spring, keeping the curtain fabric in a taut state.
It effectively prevents unevenness in the sunshade curtains, and is especially suitable for keeping the curtains flat when they are laid horizontally.
Smart Images
Figure CN223720632U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a sunshade curtain, in particular to a sunshade curtain fabric tensioning mechanism. BACKGROUND
[0002] After the sunshade curtain fabric is pulled out, the sunshade curtain fabric will appear very loose if it is not tensioned, especially when the sunshade curtain is arranged on the roof of a car, if there is no tensioning mechanism, the sunshade curtain will collapse in the middle under the action of gravity, which is very ugly, and therefore it is necessary to improve. SUMMARY
[0003] In view of the defects of the prior art, the present application provides a sunshade curtain fabric tensioning mechanism, which can tension the curtain fabric and avoid unevenness of the curtain fabric.
[0004] The technical scheme adopted by the present application to solve the technical problem is: a sunshade curtain fabric tensioning mechanism, comprising a curtain box and a track, a winding drum is rotatably connected in the curtain box, the winding drum is driven to rotate by a driving mechanism, one end of a curtain fabric is wound on the winding drum, one end of the track is arranged at the bottom of the curtain box, both ends of the curtain fabric pass through the track, and a winding device is further arranged, the winding device is arranged at the other end of the track, a rotating shaft is rotatably connected in the winding device, the other end of the curtain fabric is wound on the rotating shaft, the winding device is provided with a winding spring, the rotating shaft comprises an inner shaft and an outer sleeve tube, the other end of the curtain fabric is wound on the outer sleeve tube, the inner shaft is fixed at the ends of the winding device, the outer sleeve tube is rotatably connected on the inner shaft, the winding spring is arranged on the inner shaft, one end of the winding spring is fixed with the inner shaft, and the other end of the winding spring is rotatable with the outer sleeve tube.
[0005] In the above technical scheme, preferably, one end of the inner shaft is provided with a rotating block, the rotating block is rotatably connected on the inner shaft, the outer circle of the rotating block is provided with a clamping groove, the inner wall of the outer sleeve tube is provided with a protrusion matched with the clamping groove, and one end of the winding spring is fixed on the rotating block.
[0006] The present application has the beneficial effects that: when in use, the winding spring in the winding device tensions the curtain fabric, so that the curtain fabric is always in a taut state, and unevenness of the curtain fabric is avoided, and the present application is especially suitable for use when the curtain is arranged horizontally. BRIEF DESCRIPTION OF DRAWINGS
[0007] Figure 1 The utility model discloses a three -dimensional schematic drawing.
[0008] Figure 2The utility model discloses a side surface schematic view.
[0009] Figure 3 For Figure 2 Sectional view along A-A.
[0010] Figure 4 It is the schematic diagram of rotating block.
[0011] Figure 5 It is the schematic diagram of outer sleeve. Specific embodiments
[0012] The application is described in further detail below in conjunction with the drawings and specific embodiments:
[0013] Reference Figures 1 to 5 A tensioning mechanism of sunshade curtain cloth, including curtain box 1 and track 2, the curtain box 1 is rotatably connected with a winding drum 3, the winding drum 3 is driven to rotate by drive mechanism 31, one end of the curtain cloth 4 is wound on the winding drum 3, one end of the track 2 is arranged at the bottom of the curtain box 1, and the two ends of the curtain cloth 4 pass through the track 2.
[0014] Further including a winder 5, the winder 5 is arranged at the other end of the track 2, a rotating shaft 6 is rotatably connected in the winder 5, and the other end of the curtain cloth 4 is wound on the rotating shaft 6.
[0015] The curtain cloth 4 includes first curtain cloth 41 and second curtain cloth 42, and one end of the first curtain cloth 41 and the second curtain cloth 42 is sewn together.
[0016] The winder 5 is provided with a winding spring 7, the rotating shaft 6 includes inner shaft 61 and outer sleeve 62, the other end of the curtain cloth 4 is wound on the outer sleeve 62, the two ends of the inner shaft 61 are fixed on the end of the winder 5, the outer sleeve 62 is rotatably connected on the inner shaft 61, the winding spring 7 is arranged on the inner shaft 61, one end of the winding spring 7 is fixed with the inner shaft 61, and the other end of the winding spring 7 is rotatable with the outer sleeve 62. The function of the winding spring is to tighten the curtain cloth, so that the curtain cloth is tensioned after being pulled out.
[0017] One end of the inner shaft 61 is provided with a rotating block 71, the rotating block 71 is rotatably connected on the inner shaft 61, the outer ring of the rotating block 71 is provided with clamping groove 711, the inner wall of the outer sleeve 62 is provided with protrusion 621 matched with the clamping groove 711, and one end of the winding spring 7 is fixed on the rotating block 71.
[0018] The first curtain cloth 4 is wound on the winding drum 3, and the second curtain cloth 42 is wound on the rotating shaft 6.
[0019] When using, the coil spring in the retractor tightens the curtain cloth, so that the curtain cloth is always in a tight state, avoiding uneven state of the curtain cloth, especially suitable for horizontal arrangement of the curtain.
Claims
1. A tensioning mechanism for a sunshade curtain, comprising a curtain box and a track, wherein a roller is rotatably connected inside the curtain box, the roller is driven to rotate by a drive mechanism, one end of the curtain fabric is wound around the roller, one end of the track is located at the bottom of the curtain box, and both ends of the curtain fabric pass through the track, characterized in that: The roller is arranged at the other end of the track, a rotating shaft is rotatably arranged in the roller, and the other end of the curtain cloth is wound on the rotating shaft, The roller is provided with a winding spring, the rotating shaft comprises an inner shaft and an outer sleeve, the other end of the curtain cloth is wound on the outer sleeve, the inner shaft is fixed at the ends of the roller, the outer sleeve is rotatably arranged on the inner shaft, the winding spring is arranged on the inner shaft, one end of the winding spring is fixed with the inner shaft, and the other end of the winding spring is rotatable with the outer sleeve.
2. A tensioning mechanism for a shade cloth according to claim 1, characterised in that: One end of the inner shaft is provided with a rotating block, the rotating block is rotatably arranged on the inner shaft, the outer ring of the rotating block is provided with a clamping groove, the inner wall of the outer sleeve is provided with a protrusion matched with the clamping groove, and one end of the winding spring is fixed on the rotating block.