Efficient rolling rotary sunshade curtain

Abstract

The utility model relates to an efficient rolling rotary sunshade curtain which is characterized in that two ends of a rolling shaft are rotatably connected to side frames on two sides in a penetrating manner, an unwinding driving wheel is connected with an unwinding motor, an unwinding rope belt is wound on the unwinding driving wheel and an unwinding driven wheel, and a sliding block is fixedly connected to the unwinding rope belt in a penetrating manner; the ends, connected with the extension rods, of the sliding blocks are in the state that the sliding blocks are driven by the unwinding rope belts to slide front and back in the sunshade curtain rails of the side frames. One end or two ends of the reel are rotatably connected with the inner end of a rotating shaft in a penetrating mode, the rotating shaft is fixedly connected with the side frame in a penetrating mode, the inner end of the rotating shaft is connected with the outer end of a spring, the inner end of the spring is connected with a rotation stopping connector, and a rotation stopping boss is arranged on the periphery of the rotation stopping connector and inserted into an axial rotation stopping groove in the reel in a guiding mode. The unwinding driving wheel and the unwinding driven wheel are driven by the unwinding motor to rotate forwards to drive the unwinding rope belt to rotate, the unwinding rope belt drives the extension rod through the sliding block to pull curtain cloth to be unwound, and when winding is needed, the unwinding motor rotates reversely to drive the unwinding rope belt to rotate reversely to be combined with counter-acting force of a spring in a winding shaft, so that speed-controllable stable self-winding is achieved.

Description

Technical Field

[0001] The utility model relates to a sunshade curtain, in particular to a high-efficiency rolling and rotating sunshade curtain. Background Art

[0002] In the existing sunshade driving structure, such as the sunshade with patent number 2016200763892, a steel wire rope is used to pull the curtain cloth through a spring to unwind, and another sunshade with patent number 2022108807422 is used to pull the pull rod to unwind through a tension spring through a transmission cable. Both use elastic instantaneous recovery to rewind the curtain cloth, and the rewinding speed is uncontrollable, which may cause pinching and injury to people in the car, as well as instantaneous rewinding and impact noise, and the performance is poor. Summary of the invention

[0003] The utility model provides a sunshade curtain which can be rolled up efficiently, stably and controllably.

[0004] The technical solution adopted by the utility model is: an efficient retractable rotary sunshade, comprising an extension rod and a reel wound with a rolling curtain cloth, wherein both ends of the reel can be rotatably connected to side frames on both sides, and is characterized in that: it also includes two groups of unwinding devices respectively located on the side frames on both sides, and the unwinding device comprises an unwinding motor, an unwinding rope, an unwinding driving wheel and an unwinding driven wheel, the unwinding driving wheel is connected to the unwinding motor, the unwinding driving wheel and the unwinding driven wheel are wound with an unwinding rope, a slider is fixedly connected to the unwinding rope, and the slider is connected to the end of the extension rod and is in a sliding state driven by the unwinding rope in the sunshade track of the side frame; one end or both ends of the reel is rotatably connected to the inner end of the rotating shaft, the rotating shaft is fixedly connected to the side frame, the inner end of the rotating shaft is connected to the outer end of a spring, the inner end of the spring is connected to a stop joint, a stop boss is arranged on the outer periphery of the stop joint, and the stop boss guides the axial stop groove in the plug-in reel.

[0005] Furthermore, coil springs are arranged on both sides of the curtain, and the front and rear ends of the coil springs are connected to the extension rod and the winding shaft.

[0006] Furthermore, the center of the rotating shaft is inscribed with a core shaft, and the core shaft is axially connected to the spring.

[0007] Further, the core shaft has an axial clearance or can be rotated through the anti-rotation joint.

[0008] Furthermore, a core shaft is connected between the centers of the rotating shafts at both ends of the reel, the core shaft is axially inserted into the spring, and the core shaft has an axial clearance or can rotate through the anti-rotation joint.

[0009] Furthermore, the unwinding rope is a rubber belt.

[0010] Furthermore, the unwinding rope is a chain structure, the unwinding driving wheel and the unwinding driven wheel are sprocket structures, and the chain structure of the unwinding rope is engaged with the winding sprocket structure.

[0011] Furthermore, the unwinding rope is a steel wire rope, and a plurality of transmission fasteners are evenly spaced on the steel wire rope. A circle of multiple fastener snap-in slots are arranged on the unwinding active wheel and the unwinding driven wheel. The transmission fasteners are buckled into or out of the fastener snap-in slots on the unwinding active wheel and the unwinding driven wheel as the steel wire rope is wound around. The setting length of the plurality of transmission parts on the steel wire rope is greater than the unwinding length of the sunshade.

[0012] Furthermore, it also includes a tension control shaft which is arranged on the side frame and can be adjusted up and down. The tension control shaft presses the unwinding rope belt outwardly or inwardly to control the tension of the unwinding rope belt to be in a tensioned state.

[0013] Furthermore, the unwinding motor is connected to the unwinding driving wheel via a reverse overrunning clutch.

[0014] By adopting the above technical solution, the beneficial effects of the utility model are:

[0015] 1. The unwinding motor drives the unwinding active wheel and the unwinding driven wheel to rotate forward to drive the unwinding rope to rotate. The unwinding rope drives the extension rod to pull the curtain cloth to unwind through the slider. When rewinding is required, the unwinding motor drives the unwinding rope to reverse and combine with the reaction force of the spring in the reel to achieve controllable speed and stable self-rewinding.

[0016] 2. The side of the curtain is supplemented with a winding spring to further increase the winding force.

[0017] 3. The reel has a built-in core shaft, which can effectively prevent the radial runout of the spring and avoid spring damage, jamming, and impact noise.

[0018] 4. The unwinding motor is connected to the unwinding driving wheel through a reverse overrunning clutch. When winding, no power is input into the unwinding device. The rewinding force of the reel and the rewinding force of the winding spring are combined to drive the slider to move backward through the extension rod to realize the winding of the curtain. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0020] Figure 2 This is a schematic structural diagram of the unwinding device of Embodiment 2 of the present utility model.

[0021] In the figure: side frame 1, unwinding motor 2, unwinding rope 3, unwinding driving wheel 4, unwinding driven wheel 5, reel 6, curtain cloth 7, slider 9, extension rod 10, transmission fastener 11, fastener bayonet 12, rotating shaft 13, spring 14, anti-rotation joint 15, anti-rotation boss 16, anti-rotation groove 17. DETAILED DESCRIPTION

[0022] The invention is further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1The first embodiment shown is a highly efficient retractable and revolvable sunshade that stops immediately, comprising an extension rod 10 and a reel 6 wound around a rolling curtain fabric 7, wherein the two ends of the reel 6 are rotatably plugged into a rotation shaft 13, and the rotation shaft 13 is fixedly connected to the side frames 1 on both sides, and the rotation shaft 13 is connected to the outer end of a spring 14 at the inner end of the reel 6, and the inner end of the spring 14 is connected to a rotation stop joint 15, and a rotation stop boss 16 is arranged on the outer periphery of the rotation stop joint, and the rotation stop boss 16 guides the axial rotation stop groove 17 in the plug-in reel 6. Two unwinding devices are arranged inward on the side frames on both sides, and the unwinding devices include an unwinding motor 2, an unwinding rope belt 3, an unwinding driving wheel 4, and an unwinding driven wheel 5, wherein the unwinding driving wheel 4 is connected to the unwinding motor 2, and the unwinding driving wheel 4 and the unwinding driven wheel 5 are wound with the unwinding rope belt 3, and a slider 9 is fixedly connected to the unwinding rope belt 3, and the slider 9 is connected to the end of the extension rod 10 and is driven by the unwinding rope belt to slide forward and backward in the sunshade track of the side frame.

[0024] On the basis of the above-mentioned embodiment, a coil spring may be further provided on the side of the curtain 7 .

[0025] Based on the above embodiment, the unwinding rope belt can be selected as a rubber belt, and the unwinding driving wheel and the unwinding driven wheel are pulley structures.

[0026] Based on the above embodiment, the unwinding rope can be selected to be a chain structure, the unwinding driving wheel and the unwinding driven wheel are sprocket structures, and the chain structure of the unwinding rope is engaged with the winding sprocket structure.

[0027] Figure 2 The second embodiment shown is different from the first embodiment in that the unwinding device has a steel wire rope, and a plurality of transmission fasteners 11 are evenly spaced on the steel wire rope, and a circle of multiple fastener bayonet holes 12 are set on the unwinding driving wheel. The transmission fastener 11 is buckled into or out of the fastener bayonet 12 as the steel wire rope is wound around the unwinding driving wheel, and the unwinding slave wheel buckles into or out of the fastener bayonet 12. The length of the multiple transmission parts on the steel wire rope is greater than the unwinding length of the sunshade. The technology of this device refers to patent 2020213843374. Any transmission fastener can be replaced by a slider 9.

[0028] On the basis of the above embodiment, a tension control shaft that can be adjusted up and down can be set on the side frame, and the tension control shaft presses the unwinding rope belt outward or inward to control the tension of the unwinding rope belt. This tension control technology belongs to the existing technology, and this embodiment and the drawings will not be described in detail.

Claims

1. An efficient retractable sunshade, comprising an extension rod and a reel around which a rolling curtain cloth is wound, wherein both ends of the reel can be rotatably connected to the side frames on both sides, and characterized in that: The unwinding device also includes two groups of unwinding devices respectively located on the side frames on both sides, the unwinding device includes an unwinding motor, an unwinding rope, an unwinding driving wheel and an unwinding driven wheel, the unwinding driving wheel is connected to the unwinding motor, the unwinding driving wheel and the unwinding driven wheel are wound with an unwinding rope, a slider is fixedly inserted on the unwinding rope, the slider is connected to the end of the extension rod, and it is driven by the unwinding rope to slide back and forth in the sunshade track of the side frame; one end or both ends of the reel are rotatably inserted into the inner end of the rotating shaft, the rotating shaft is fixedly inserted into the side frame, the inner end of the rotating shaft is connected to the outer end of a spring, the inner end of the spring is connected to a stop joint, a stop boss is arranged on the outer periphery of the stop joint, and the stop boss guides the axial stop groove in the plug-in reel.

2. The high-efficiency retractable rotary sunshade according to claim 1 is characterized by: Coil springs are arranged on both sides of the curtain, and the front and rear ends of the coil springs are connected to the extension rod and the winding shaft.

3. The high-efficiency retractable rotary sunshade according to claim 1 is characterized by: The center of the rotating shaft is inwardly connected to a core shaft, and the core shaft axially penetrates the spring.

4. The high-efficiency retractable rotary sunshade according to claim 3 is characterized by: The spindle may have axial clearance or be rotatable through the swivel joint.

5. The high-efficiency retractable rotary sunshade according to claim 1 is characterized by: A core shaft is connected between the centers of the rotating shafts at both ends of the reel. The core shaft is axially connected to the spring, and the core shaft has an axial clearance or can be rotated through the anti-rotation joint.

6. The high-efficiency retractable rotary sunshade according to claim 1 is characterized by: The unwinding rope belt is a rubber belt.

7. The high-efficiency retractable rotary sunshade according to claim 1 is characterized by: The unwinding rope belt is a chain structure, the unwinding driving wheel and the unwinding driven wheel are sprocket structures, and the chain structure of the unwinding rope belt meshes with the winding sprocket structure.

8. The high-efficiency retractable rotary sunshade according to claim 1 is characterized by: The unwinding rope is a steel wire rope, on which a plurality of transmission fasteners are evenly spaced, and a circle of a plurality of fastener slots are arranged on the unwinding driving wheel and the unwinding driven wheel. The transmission fasteners are buckled into or out of the fastener slots on the unwinding driving wheel and the unwinding driven wheel as the steel wire rope is wound around. The length of the plurality of transmission parts on the steel wire rope is greater than the unwinding length of the sunshade.

9. The high-efficiency retractable rotary sunshade according to claim 1 is characterized by: The invention also comprises a tension control shaft which is arranged on the side frame and can be adjusted up and down. The tension control shaft presses the unwinding rope belt outwardly or inwardly to control the tension of the unwinding rope belt to be in a tensioned state.

10. The high-efficiency retractable rotary sunshade according to claim 1, characterized in that: The unwinding motor is connected to the unwinding driving wheel via a reverse overrunning clutch.

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