A single motor controlled drive foldable sun visor device

Abstract

The application discloses a single-motor controlled and driven foldable sunshade device, which comprises a foldable sunshade device, a folding and unfolding driving device, a control device and a supporting device; the foldable sunshade device adopts a foldable structure developed based on the origami technology, can be folded into a 3D structure occupying a very small space in a non-use or transportation state, and can be conveniently and quickly unfolded into a structure size actually required in a use state. The application can realize that a single motor simultaneously applies two opposite direction concentrated loads through the driving and control device, and can change the load direction and the load size according to actual requirements, so that the unfolding and folding actions of the sunshade device are more smooth and easier to be controlled in real time. Meanwhile, the application can use various foldable structure materials, such as paper used in the traditional origami technology, flexible plastic film materials and rigid steel truss materials, so that the practical application scenarios of the foldable sunshade device are widened.

Description

Technical Field

[0001] This invention relates to the field of sunshades, and more specifically to a foldable sunshade device controlled and driven by a single motor. Background Technology

[0002] Sunshades are devices that prevent direct sunlight from entering a specific area. They are currently widely used in various scenarios such as pedestrian rest areas along roads or in tourist attractions, roofs requiring shade, and vehicle roofs. Traditional sunshade devices have the following problems:

[0003] (1) The size of sunshade is generally large, which may occupy a lot of space when it is not needed, resulting in low space utilization of the sunshade device;

[0004] (2) A foldable sunshade device has received increasing attention. It can be folded into a smaller volume when not in use or during transportation, and unfolded into a specific shape when needed. However, this type of foldable sunshade device still suffers from low folding efficiency and difficulty in adjusting the driving force for unfolding and folding in real time. Summary of the Invention

[0005] To address the shortcomings of existing sun visors, this invention proposes a foldable sun visor device driven by a single motor. This device enables the sun visor to be quickly folded up when not in use and quickly unfolded when needed, effectively improving the efficiency of sun visor use.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] A foldable sun visor device controlled and driven by a single motor includes a folding sun visor device, a folding and unfolding drive device, a control device, and a support device.

[0008] The folding and unfolding drive device and the control device are both fixed on the support device, and the folding sunshade device is installed on the folding and unfolding drive device.

[0009] The folding and unfolding drive device includes a rotary motor, a gear set, two tracks, two guide rails, and two trolleys; the gear set includes a main gear, two auxiliary gears, and a transmission gear.

[0010] Two guide rails are symmetrically fixed to the support device. The rotary motor is located between the two guide rails and fixed to the guide rails. The rotating shaft of the rotary motor is connected to the main gear. The main gear meshes with a secondary gear and a transmission gear. The transmission gear also meshes with another secondary gear. The trolley is located on the guide rails and can slide along the guide rails. The top is connected to the outer periphery of the folding sunshade device. The tracks are fitted onto the bottom of the trolley and the secondary gear.

[0011] The folding sunshade device is a foldable structure formed by origami. In its folded state, it can form a small-volume three-dimensional structure, and in its unfolded state, it can be quickly unfolded into the required structural size.

[0012] The control device controls the rotary motor to rotate, which drives the main gear, transmission gear, and auxiliary gear to rotate, thereby driving the two tracks to rotate, so that the two trolleys fixed on the tracks move along the guide rail in two opposite directions, causing the folding sunshade device to fold or unfold.

[0013] Furthermore, the folding and unfolding drive device also includes a limiting device, with two limiting devices respectively installed at the ends of the two guide rails to limit the displacement of the trolley.

[0014] Furthermore, the unfolded configuration of the folding sunshade device is a circular surface, the center of which is a regular hexagon concentric with the circular surface. The extension lines between the six sides of the regular hexagon and the sides of the circular surface are valley lines, and the angle bisector of the angle between two adjacent valley lines is a mountain peak line. When the folding sunshade device is folded, it folds around the regular hexagon, using the mountain peak line and valley line as fold lines.

[0015] Furthermore, the connection points between the two trolleys and the folding sunshade device are located at two symmetrical points where the central axis of the unfolded surface of the folding sunshade device intersects with the circumference of the unfolded surface.

[0016] Furthermore, the unfolded configuration of the folding sunshade device is a circular surface. The angle bisector of the included angle between two adjacent valley lines is separated from the midpoint of the angle bisector. The segment closer to the center of the circle is the upper half, which is the mountain peak line, and the segment farther from the center of the circle is the lower half, which is the valley line. Parallel lines are drawn through the midpoint of the angle bisector, parallel to the valley lines on both sides. Both of these parallel lines are mountain peak lines.

[0017] Multiple V-shaped notches are evenly spaced around the circumference of the circular surface, with one vertex of each V-shaped notch located on the mountain peak line or valley line, thereby preventing interference between the surfaces during folding.

[0018] Divide each of the two adjacent valley lines and their corresponding angle bisectors into equal parts. Connect the valley lines and the corresponding bisectors on the angle bisectors to form multiple parallel bisectors. In a clockwise direction, if the line containing the bisector to the left of the bisector is a mountain peak line, then the bisector is a mountain peak line; otherwise, the bisector is a valley line.

[0019] The beneficial effects of this invention are as follows:

[0020] (1) In view of the problem that traditional sunshades have low space utilization and are difficult to unfold, the present invention designs a folding sunshade device with single motor control drive. The device adopts a foldable structure based on origami technology. When it is not in use or in the transportation state, it is folded into a 3D structure that occupies only a small space, and when it is in use, it can be easily and quickly unfolded into the actual required structural size.

[0021] (2) The single motor controlled drive folding sunshade device of the present invention can realize the simultaneous application of two concentrated loads in opposite directions by a single motor, and can change the direction and magnitude of the applied load according to actual needs, so that the unfolding and folding action of the sunshade device is smoother and easier to control in real time.

[0022] (3) The folding sunshade device of the present invention can be applied to sunshades formed by various origami structures, such as paper used in traditional origami techniques, as well as flexible plastic film materials and rigid steel truss materials, which greatly broadens the selection of folding structure materials and makes the application scenarios of the folding sunshade device more extensive. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the single-motor controlled folding sunshade device of the present invention.

[0024] Figure 2 This is a schematic diagram of the folding and unfolding drive device of the present invention.

[0025] Figure 3 This is a schematic diagram of the configuration design of the folding sunshade device made of flexible material according to the present invention.

[0026] Figure 4 This is a schematic diagram of the folding sunshade device of the present invention in the folded state.

[0027] Figure 5 This is a schematic diagram of the configuration design of the folding sunshade device made of rigid materials according to the present invention.

[0028] Figure 6 This is a flowchart illustrating the folding and unfolding method of the sunshade using a single motor control drive according to the present invention.

[0029] In the diagram, the components are: 1. Folding sunshade device; 1-1. Peak line; 1-2. Valley line; 1-3. Cutting line; 2. Folding and unfolding drive device; 2-1. Rotary motor; 2-2. Gear set; 2-2-1. Main gear; 2-2-2. Secondary gear; 2-2-2. Transmission gear; 2-2-3. Track; 2-3. Guide rail; 2-4. Trolley; 2-5. Limiting device; 2-6. Control device; 3. Support device; 4. Detailed Implementation

[0030] The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. The purpose and effects of the present invention will become clearer. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0031] like Figure 1 As shown, the single-motor controlled foldable sunshade device of this invention includes four parts: a foldable sunshade device 1, a folding and unfolding drive device 2, a control device 3, and a support device 4.

[0032] The support device 4 is fixed to the ground or roof surface for various practical applications; the control device 3 is installed on the upright of the support device 4 to control the operating mode of the rotary motor, including its forward or reverse rotation and the magnitude of the driving force. The folding sunshade device 1 and the folding and unfolding drive device 2 are both located on the support device 4.

[0033] The folding and unfolding drive unit 2 includes: a rotary motor 2-1, a gear set 2-2, two tracks 2-3, two guide rails 2-4, two trolleys 2-5, and two limiting devices 2-6. The gear set 2-2 includes a main gear 2-2-1, two auxiliary gears 2-2-2, and a transmission gear 2-2-3.

[0034] Two guide rails 2-4 are symmetrically fixed to the uprights of the support device 4. A rotary motor 2-1 is located between the two guide rails 2-4 and fixed to them. A gear set 2-2 is located above the rotary motor 2-1 and below the folding sunshade device 1, used for power transmission. Figure 2As shown, the rotating shaft of the rotary motor 2-1 is connected to the main gear 2-2-1. The main gear 2-2-1 meshes with a secondary gear 2-2-2 and a transmission gear 2-2-3. The transmission gear 2-2-3 also meshes with another secondary gear 2-2-2. The trolley 2-5 is located on the guide rail 2-4 and can slide along the guide rail 2-4. The bottom end of the trolley 2-5 rests on the track 2-3, and the top end of the trolley 2-5 is connected to the outer periphery of the folding sunshade device 1. The track 2-3 is fitted onto the bottom of the trolley 2-5 and the secondary gear 2-2-2. A limiting device 2-6 is arranged at the outer end of each guide rail 2-4 to limit the displacement of the trolley 2-5. When the track 2-3 slides, it will drive the two trolleys 2-5 on the left and right to move in opposite directions on the guide rail 2-4 until they stop at the limiting device 2-6.

[0035] The purpose of using transmission gear 2-2-3 here is to make the two auxiliary gears 2-2-2 rotate in two opposite clockwise directions. For example, if one auxiliary gear 2-2-2 located to the left of the main gear 2-2-1 rotates clockwise, the other auxiliary gear 2-2-2 located to the right of the main gear 2-2-2 will rotate counterclockwise, and vice versa.

[0036] The folding sun visor device 1 is connected to the folding and unfolding drive device 2 by two left and right trolleys 2-5 that slide on the guide rail 2-4. The trolleys are located at two symmetrical points A and B where the central axis of the unfolding surface of the folding sun visor device 1 intersects with the circumference of the unfolding surface. By sliding the trolleys in opposite directions synchronously, a reverse and symmetrical concentrated load is applied to the folding sun visor device 1 to realize the unfolding or folding action of the folding sun visor device 1.

[0037] The folding sunshade device 1 can be made of materials such as paper used in traditional origami techniques, flexible plastic film materials, or rigid steel truss materials.

[0038] like Figure 3 As shown, the folding sunshade device 1 is a foldable structure formed by origami. Its configuration design is as follows: its unfolded surface is a circular surface, and its center is a regular hexagon concentric with the circle. All six sides of the regular hexagon are valley lines 1-2. The extension lines between the six sides of the regular hexagon and the sides of the circle are valley lines 1-2. The angle bisector of the angle between two adjacent valley lines 1-2 is the peak line 1-1. When the folding sunshade device 1 is folded, it is folded around the regular hexagon, using the peak line 1-1 and valley lines 1-2 as fold lines. The peak line 1-1 means that when folding the foldable sunshade device 1, it will fold inward in a direction perpendicular to the plane. The valley line 1-2 means that when folding the foldable sunshade device 1, it will fold outward in a direction perpendicular to the plane.

[0039] like Figure 4 As shown, Figure 3The folding sunshade device 1 can form a small-volume three-dimensional structure in its folded state, and can be quickly unfolded into the required structural size in its unfolded state.

[0040] like Figure 5 As shown, the folding sunshade device 1 can also be made of rigid materials, and its configuration design is as follows: Figure 3 This is a further improved scheme based on the previous one. In this embodiment, the unfolded configuration of the folding sunshade device 1 is also a circular surface. The angle bisector of the included angle between two adjacent valley lines 1-2 is separated from the midpoint of the angle bisector. The segment closer to the center of the circle is the upper half, which is the mountain peak line, and the segment farther from the center of the circle is the lower half, which is the valley line. Parallel lines to the valley lines on both sides are drawn through the midpoint of the angle bisector. Both of these parallel lines are mountain peak lines 1-1.

[0041] To prevent interference between adjacent surfaces, multiple V-shaped notches are evenly spaced around the circumference of the circular surface, with one vertex of each V-shaped notch located on either the mountain peak line 1-1 or the valley line 1-2.

[0042] Each adjacent valley line 1-2 and its corresponding angle bisector is equally divided. Connecting the valley line 1-2 with the corresponding bisector points on the angle bisectors creates multiple parallel bisectors. In a clockwise direction, if the line containing the bisector point to the left of the bisector is a peak line, then that bisector is marked as peak line 1-1; otherwise, it is marked as valley line 1-2. The smallest unit composed of peak lines and valley lines is a grid, and each grid corresponds to a rigid plate.

[0043] like Figure 6 As shown, the folding and unfolding process of the single-motor controlled foldable sunshade device according to an embodiment of the present invention is as follows:

[0044] Step 1: Based on the actual required type of sunshade and the material type of the folding structure, use professional origami design software to generate a configuration design scheme for the foldable sunshade device 1, and then manufacture the sunshade device.

[0045] Step 2: Connect the foldable sunshade device 1 to the folding and unfolding drive device 2.

[0046] Step 3: Determine whether the foldable sun visor device 1 is in use. The folding and unfolding drive device 2 drives the gear set 2-2 to rotate through the rotary motor 2-1. The gear set 2-2 enables the track 2-3 to slide in two opposite directions. The track 2-3 drives the two small cars 2-5 on the left and right to move in two opposite directions on the guide rail 2-4. The small cars 2-5 drive the unfolding and folding of the foldable sun visor device 1.

[0047] It will be understood by those skilled in the art that the above descriptions are merely preferred examples of the invention and are not intended to limit the invention. Although the invention has been described in detail with reference to the foregoing examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. All modifications and equivalent substitutions made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A single motor controlled drive foldable sun visor device, characterized by, It includes a folding sunshade device (1), a folding and unfolding drive device (2), a control device (3), and a support device (4). The folding and unfolding drive device (2) and the control device (3) are both fixed on the support device (4), and the folding sunshade device (1) is installed on the folding and unfolding drive device (2). The folding and unfolding drive device (2) includes a rotary motor (2-1), a gear set (2-2), two tracks (2-3), two guide rails (2-4), and two trolleys (2-5); the gear set (2-2) includes a main gear (2-2-1), two auxiliary gears (2-2-2), and a transmission gear (2-2-3). Two guide rails (2-4) are symmetrically fixed on the support device (4). The rotary motor (2-1) is located between the two guide rails (2-4) and fixed on the guide rails (2-4). The rotating shaft of the rotary motor (2-1) is connected to the main gear (2-2-1). The main gear (2-2-1) meshes with a secondary gear (2-2-2) and a transmission gear (2-2-3). The transmission gear (2-2-3) also meshes with another secondary gear (2-2-2). The trolley (2-5) is located on the guide rails (2-4) and can slide along the guide rails (2-4). The top is connected to the outer periphery of the folding sunshade device (1). The track (2-3) is fitted on the bottom of the trolley (2-5) and the secondary gear (2-2-2). The folding sunshade device (1) is a foldable structure formed by origami. In its folded state, it can form a small-volume three-dimensional structure, and in its unfolded state, it can be quickly unfolded into the required structural size. The control device (3) controls the rotary motor (2-1) to rotate, driving the main gear (2-2-1), transmission gear (2-2-3), and auxiliary gear (2-2-2) to rotate, thereby driving the two tracks (2-3) to rotate, so that the two trolleys (2-5) fixed on the tracks (2-3) move along the guide rail (2-4) in two opposite directions, so that the folding sunshade device (1) is folded or unfolded; The unfolded configuration of the folding sunshade device (1) is a circular surface, the center of which is a regular hexagon concentric with the circular surface. The extension lines between the six sides of the regular hexagon and the sides of the circular surface are valley lines, and the angle bisector of the included angle of two adjacent valley lines is a mountain peak line. When the folding sunshade device (1) is folded, it is folded around the regular hexagon with the mountain peak line and valley line as the fold lines. The unfolded configuration of the folding sunshade device (1) is a circular surface. The angle bisector of the included angle between two adjacent valley lines is separated from the midpoint of the angle bisector. The section closer to the center of the circle is the upper half, which is the mountain peak line. The section farther from the center of the circle is the lower half, which is the valley line. Parallel lines parallel to the valley lines on both sides are drawn through the midpoint of the angle bisector. Both of these parallel lines are mountain peak lines. Multiple V-shaped notches are evenly spaced around the circumference of the circular surface, with one vertex of each V-shaped notch located on the mountain peak line or valley line, thereby preventing interference between the surfaces during folding. Divide each of the two adjacent valley lines and their corresponding angle bisectors into equal parts. Connect the valley lines and the corresponding bisectors on the angle bisectors to form multiple parallel bisectors. In a clockwise direction, if the line containing the bisector to the left of the bisector is a mountain peak line, then the bisector is a mountain peak line; otherwise, the bisector is a valley line.

2. The foldable sunshade device with single-motor control drive according to claim 1, characterized in that, The folding and unfolding drive device (2) also includes a limiting device (2-6). The two limiting devices (2-6) are respectively installed at the ends of the two guide rails (2-4) to limit the displacement of the trolley (2-5).

3. The foldable sunshade device with single-motor control drive according to claim 1, characterized in that, The connection points between the two trolleys (2-5) and the folding sunshade device (1) are located at two symmetrical points where the central axis of the unfolded surface of the folding sunshade device (1) intersects with the circumference of the unfolded surface.

Images