Automatic bidirectional dimming shutter

Abstract

The invention relates to the technical field of shutters, and discloses an automatic bidirectional dimming shutter which comprises an arrangement type shutter mechanism and a telescopic driven mechanism. A shaft body butt joint block fixedly connected with one end of the first horizontal rotating shaft and a hollow rotating column connected with the rotating end of the shading blade and capable of driving the shading blade to rotate are arranged in the first horizontal rotating shaft. The polygonal insertion column can move in the axial direction of the hollow rotating column and can be inserted into the shaft body butt joint block; and the first spiral spring generates an elastic damping effect on the polygonal insertion column. On the basis that the inclination angles of the shading blades can be normally adjusted, the automatic bidirectional dimming shutter has the advantage of being low in maintenance cost, due to the fact that each shading blade is in an independent and separable connection mode, once a single shading blade is damaged, a user can quickly replace the shading blade, and the maintenance cost is reduced. Therefore, the maintenance cost and the use cost of the equipment are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of blinds, and specifically to an automatic two-way dimming blind. Background Art

[0002] In daily life and workplaces, both blinds and curtains are commonly used light-shielding items. Compared with curtains, blinds have adjustable blades, which can not only block ultraviolet radiation but also adjust indoor light. The swaying of curtains makes indoor life appear and disappear, while the overlapping design of blinds ensures the privacy of the home. The overall design of blinds is simple and elegant, making them a common sunshade and decoration in office areas.

[0003] For example, the Chinese patent application with the publication number "CN115162932A" discloses an "automatic two-way dimming blind", whose main structure includes a number of daylighting blades, a number of light-shielding blades, a top connecting rod, a daylighting driving device, a bottom connecting rod, and a light-shielding driving device. This automatic two-way dimming blind can supplement indoor lighting through the upper daylighting blades, while achieving a sunshade function through the lower part, and automatically adjust the blade angle according to the incident angle of sunlight to adapt to different usage periods and installation positions.

[0004] Since the daylighting blades and the light-shielding blades are sequentially connected in series by a number of connecting lines, and in actual use of the above automatic two-way dimming blind, because each daylighting blade and a number of light-shielding blades exist independently, during long-term use, it is very likely that a single daylighting blade and a number of light-shielding blades will be damaged. And the daylighting blades and the light-shielding blades are sequentially connected in series by a number of connecting lines. Once one of the daylighting blades and a number of light-shielding blades is damaged, the entire device needs to be replaced, resulting in a high maintenance cost for the above automatic two-way dimming blind and indirectly leading to a relatively high usage cost. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an automatic two-way dimming blind, which, on the basis of being able to normally adjust the tilt angle of the light-shielding blades, has the characteristic of low maintenance cost. Since each light-shielding blade is connected in a separate and separable manner, when a single light-shielding blade is damaged, the user can quickly replace it, thereby reducing the maintenance cost and usage cost of the device and solving the above technical problems.

[0006] To achieve the above object, the present invention provides the following technical solution: An automatic two-way dimming louver, which includes a driving motor fixedly installed in a motor fixed base, and also includes an array louver mechanism. The array louver mechanism internally has two symmetrically arranged strip-shaped brackets, a first horizontal rotating shaft longitudinally arranged and installed in the strip-shaped brackets through bearings, a plurality of light-shielding blades located in the central area between the two strip-shaped brackets and capable of rotating with the first horizontal rotating shaft, a double synchronous pulley for synchronously rotating the plurality of first horizontal rotating shafts, and a second horizontal rotating shaft fixedly installed at the end of one of the double synchronous pulleys, capable of rotating with the rotor of the driving motor and driving the double synchronous pulley to rotate; and a telescopic driven mechanism, which internally has a shaft body docking block fixedly connected to one end of the first horizontal rotating shaft, a hollow rotating column connected to the rotating end of the light-shielding blade and capable of driving the light-shielding blade to rotate, a polygonal insertion column capable of moving axially in the hollow rotating column and inserting into the interior of the shaft body docking block, and a first spiral spring that produces an elastic damping effect on the polygonal insertion column.

[0007] Preferably, the array louver mechanism includes two symmetric strip-shaped brackets. The strip-shaped brackets are provided with a plurality of first shaft body mounting holes longitudinally arranged. Inside each of the first shaft body mounting holes of the strip-shaped brackets, a rotatable first horizontal rotating shaft is axially installed respectively. A first docking plate is installed at the opposite ends of every two symmetric first horizontal rotating shafts. A light-shielding blade capable of achieving a light-shielding effect is placed between every two symmetric strip-shaped brackets at the same height. A double synchronous pulley is fixedly installed at the other end of each of the first horizontal rotating shafts respectively. The two double synchronous pulleys are linked by a synchronous belt. A second horizontal rotating shaft is fixedly installed at the end of a double synchronous pulley in the middle through a second docking plate.

[0008] Preferably, the edges and corners of the light-shielding blade are provided with a rounded corner structure.

[0009] Preferably, the width of the light-shielding blade is sufficient to effectively block sunlight when the light-shielding blade is closed.

[0010] Preferably, the telescopic driven mechanism includes a hollow rotating column and an axle docking block, one end face of the axle docking block is fixedly connected to one end of the No. 1 docking plate, the other end face of the axle docking block is provided with a polygonal insertion groove with an inwardly concave structure, one end face of the hollow rotating column is provided with a flat embedding groove with an inwardly concave structure for fixing and installing shading blades, a horizontal component movable cavity is provided inside the hollow rotating column, the other end of the hollow rotating column is provided with a No. 1 axle through hole connecting one end of the horizontal component movable cavity and the external space, and the hollow rotating column is provided with an energy-saving device inside the horizontal component movable cavity. A polygonal limit plate capable of axially moving along the movable cavity of the horizontal component, the polygonal limit plate is fixedly installed on a horizontal telescopic shaft that passes through the No. 1 shaft through-hole at one end surface facing the No. 1 shaft through-hole, the hollow rotating column is provided with a No. 1 coil spring that generates elastic pressure on the polygonal limit plate toward the shaft docking block inside the movable cavity of the horizontal component, the horizontal telescopic shaft is fixedly installed with a disc-shaped force plate at one end located outside the hollow rotating column, and the disc-shaped force plate is provided with a polygonal insertion column that is an integral structure with it and can be inserted into the polygonal insertion groove at one end surface facing the shaft docking block.

[0011] Preferably, the structural shape of the polygonal insertion groove cross section is consistent with the structural shape of the polygonal insertion column cross section, both are polygonal structures, and the structural dimensions of the polygonal insertion groove cross section match the structural dimensions of the polygonal insertion column cross section.

[0012] Preferably, the structural shape of the cross section of the movable cavity of the horizontal component is consistent with the structural shape of the cross section of the polygonal limiting plate, both are polygonal structures, and the structural dimensions of the cross section of the movable cavity of the horizontal component match the structural dimensions of the cross section of the polygonal limiting plate.

[0013] Preferably, it also includes a torque strength control mechanism, which is internally provided with a hollow disk body that rotates with the rotor of the driving motor, an inner rotating column that can drive the second horizontal rotating shaft to rotate, and an arc-shaped contact plate that can enable the hollow disk body and the inner rotating column to be linked by friction.

[0014] Preferably, the torque strength control mechanism includes a hollow disk body and an inner rotating column, the upper end surface of the hollow disk body is provided with a rotor fixing groove for fixing and installing the rotor, the center of the hollow disk body is provided with a columnar component installation cavity, the center of the bottom end of the hollow disk body is provided with an axle body fixing channel, the axle body of the second horizontal rotating shaft is installed inside the axle body fixing channel through a bearing, the center of the columnar component installation cavity is placed with an inner rotating column, the bottom center of the inner rotating column is provided with an axle body fixing groove for fixing and installing the second horizontal rotating shaft, the hollow disk body is located at the columnar component installation cavity A plurality of annular array-type axial component movable cavities are arranged on the periphery of the cavity, and the circumferential side surfaces of the axial component movable cavities and the cylindrical component mounting cavity are connected through the shaft body telescopic holes, and an inner movable plate capable of axially moving along the cylindrical component mounting cavity is arranged inside the cylindrical component mounting cavity, a No. 2 coil spring is arranged at one end of the inner movable plate, a connecting shaft body penetrating the shaft body telescopic hole is fixedly installed at the other end of the inner movable plate, and an arc-shaped resistance plate that abuts against the circumferential surface of the inner rotating cylinder is fixedly installed at one end of the connecting shaft body located inside the cylindrical component mounting cavity.

[0015] Preferably, one end of the No. 2 coil spring abuts against one end surface of the inner movable plate, and the other end abuts against one end surface of the movable cavity of the axial component, and the No. 2 coil spring is in a compressed state, and the structural radius of the inner concave surface of the arc-shaped abutment plate matches the structural radius of the inner rotating column.

[0016] Compared with the prior art, the present invention provides an automatic two-way dimming blinds, which has the following features:

[0017] Beneficial effects:

[0018] 1. On the basis of being able to normally adjust the inclination angle of the shading blades, it has the characteristics of low maintenance cost. Since each shading blade is connected separately and detachably, once a single shading blade is damaged, the user can quickly replace it, thereby reducing the maintenance cost and use cost of the equipment.

[0019] 2. By setting up an arranged shutter mechanism, after the driving motor is started, the steering angle of the rotor is controlled by the controller. When the second horizontal rotating shaft rotates, due to the linkage effect of the synchronous belt, multiple shading blades will be driven to rotate synchronously and at the same angle, thereby achieving a parallel shading effect.

[0020] 3. By setting up a telescopic driven mechanism, the staff apply a force towards the center of symmetry on the disc-shaped force-applying plate with both hands until the polygonal insertion post disengages from the polygonal insertion slot, then take out the damaged light-shielding blade. Subsequently, select a new damaged light-shielding blade. Similarly, apply a force towards the center of symmetry on the disc-shaped force-applying plate. When the polygonal insertion post aligns with the polygonal insertion slot, release the force on the disc-shaped force-applying plate. Under the elastic action of the first helical spring, the polygonal insertion slot will insert into the interior of the polygonal insertion post, thus realizing the replacement of the light-shielding blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 is a perspective sectional view of the present invention;

[0023] Figure 3 is a perspective view of the arranged louver mechanism in the present invention;

[0024] Figure 4 is a perspective sectional view of the arranged louver mechanism in the present invention;

[0025] Figure 5 is a perspective sectional view of the telescopic driven mechanism in the present invention;

[0026] Figure 6 is a combined perspective view of the polygonal limit plate, horizontal telescopic shaft, disc-shaped force-applying plate and polygonal insertion post in the present invention;

[0027] Figure 7 is a perspective sectional view of the torque strength control mechanism in the first perspective in the present invention;

[0028] Figure 8 is a perspective sectional view of the torque strength control mechanism in the second perspective in the present invention.

[0029] Wherein: 1. Motor fixed base; 2. Driving motor; 3. Rotor; 4. Arranged louver mechanism; 41. Strip-shaped bracket; 42. First shaft body mounting hole; 43. First horizontal rotating shaft; 44. First docking plate; 45. Double synchronous pulley; 46. Synchronous belt; 47. Light-shielding blade; 48. Second docking plate; 49. Second horizontal rotating shaft; 5. Telescopic driven mechanism; 51. Hollow rotating column; 52. Flat embedded groove; 53. Horizontal component moving cavity; 54. First shaft body perforation; 55. Polygonal limiting plate; 56. First spiral spring; 57. Horizontal telescopic shaft; 58. Disk-shaped force-applying plate; 59. Shaft body docking block; 510. Polygonal insertion groove; 511. Polygonal insertion column; 6. Torque strength control mechanism; 61. Hollow disk body; 62. Rotor fixing groove; 63. Cylindrical component mounting cavity; 64. Shaft body fixing channel; 65. Axial component moving cavity; 66. Shaft body expansion hole; 67. Inner moving plate; 68. Second spiral spring; 69. Arc-shaped resisting plate; 610. Inner rotating column; 611. Shaft body fixing groove. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1 and Figure 2 , an automatic two-way dimming louver, including a driving motor 2 fixedly installed in the motor fixed base 1, embedding and installing the motor fixed base 1 inside or on the surface of the wall. At the same time, the driving motor 2 needs to use a servo motor that can rotate bidirectionally, and the instrument for controlling the driving motor 2 selects a controller that can control the rotation speed and rotation angle of the driving motor 2.

[0032] In order to achieve a parallel light-shielding effect, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, it is necessary to set up an array type louver mechanism 4, which internally has two symmetrically arranged strip-shaped brackets 41, a first horizontal rotating shaft 43 installed longitudinally in the strip-shaped brackets 41 through bearings, a plurality of light-shielding blades 47 located in the central area between the two strip-shaped brackets 41 and capable of rotating with the first horizontal rotating shaft 43, a double synchronous pulley 45 for synchronously rotating a plurality of the first horizontal rotating shafts 43, and a second horizontal rotating shaft 49 fixedly installed at the end of one of the double synchronous pulleys 45, capable of rotating with the rotor 3 of the driving motor 2 and driving the double synchronous pulley 45 to rotate. After the driving motor 2 is started, the steering angle of the rotor 3 is controlled by the controller. When the second horizontal rotating shaft 49 rotates, due to the linkage effect of the synchronous belt 46, a plurality of light-shielding blades 47 will be driven to rotate synchronously and at the same angle, thus achieving a parallel light-shielding effect.

[0033] For the specific structure of the array type louver mechanism 4, please refer to Figure 3 and Figure 4 , including two symmetric strip-shaped brackets 41. A plurality of first shaft body mounting holes 42 for longitudinal discharging are provided in the strip-shaped brackets 41. A rotatable first horizontal rotating shaft 43 is axially installed inside each of the first shaft body mounting holes 42 of the strip-shaped brackets 41. A first docking plate 44 is installed at the opposite ends of every two symmetric first horizontal rotating shafts 43. A light-shielding blade 47 capable of achieving a light-shielding effect is placed between every two symmetrically high strip-shaped brackets 41. In order to prevent the edges from causing cutting injuries to personnel, it is necessary to provide a rounded corner structure at the edges of the light-shielding blade 47. A double synchronous pulley 45 is fixedly installed at the other end of each of the first horizontal rotating shafts 43. Every two of the double synchronous pulleys 45 are linked by a synchronous belt 46. A second horizontal rotating shaft 49 is fixedly installed at the end of a double synchronous pulley 45 in the middle through a second docking plate 48. The width of the light-shielding blade 47 is sufficient to effectively block sunlight when the light-shielding blade 47 is closed.

[0034] For the convenience of replacing the damaged light-shielding blade 47, please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6, it is necessary to set up a telescopic driven mechanism 5, which is internally provided with a shaft body docking block 59 fixedly connected to one end of the first horizontal rotating shaft 43, a hollow rotating column 51 connected to the rotating end of the light-shielding blade 47 and capable of driving the light-shielding blade 47 to rotate, a polygonal insertion column 511 capable of moving axially in the hollow rotating column 51 and inserting into the inside of the shaft body docking block 59, and a first helical spring 56 that produces an elastic damping effect on the polygonal insertion column 511. When it is necessary to replace the new light-shielding blade 47, first, the staff applies a force towards the center of symmetry to the disc-shaped force-applying plate 58 with both hands until the polygonal insertion column 511 disengages from the polygonal insertion groove 510, then takes out the damaged light-shielding blade 47. Then, a new damaged light-shielding blade 47 is selected. Similarly, a force towards the center of symmetry is applied to the disc-shaped force-applying plate 58. When the polygonal insertion column 511 is aligned with the polygonal insertion groove 510, the force applied to the disc-shaped force-applying plate 58 is released. Under the elastic action of the first helical spring 56, the polygonal insertion groove 510 will insert into the inside of the polygonal insertion column 511, thereby realizing the replacement of the light-shielding blade 47.

[0035] For the specific structure of the telescopic driven mechanism 5, please refer to Figure 5 and Figure 6, including a hollow rotating column 51 and a shaft body docking block 59. One end face of the shaft body docking block 59 is fixedly connected to one end of the first docking plate 44. The other end face of the shaft body docking block 59 is provided with a polygon insertion groove 510 with an inwards concave structure. One end face of the hollow rotating column 51 is provided with a flat embedding groove 52 with an inwards concave structure and used for fixedly installing a light-shielding blade 47. The interior of the hollow rotating column 51 is provided with a horizontal component moving cavity 53. The other end of the hollow rotating column 51 is provided with a first shaft body perforation 54 communicating one end of the horizontal component moving cavity 53 with the external space. Inside the hollow rotating column 51 and located in the horizontal component moving cavity 53, there is placed a polygon limiting plate 55 capable of moving axially along the horizontal component moving cavity 53. One end face of the polygon limiting plate 55 facing the first shaft body perforation 54 is fixedly installed with a horizontal telescopic shaft 57 penetrating through the first shaft body perforation 54. Inside the hollow rotating column 51 and located in the horizontal component moving cavity 53, there is placed a first spiral spring 56 that generates an elastic pressure on the polygon limiting plate 55 towards the direction of the shaft body docking block 59. One end of the horizontal telescopic shaft 57 located outside the hollow rotating column 51 is fixedly installed with a disc-shaped force-applying plate 58. One end face of the disc-shaped force-applying plate 58 facing the shaft body docking block 59 is provided with a polygon insertion post 511 integrally structured with it and capable of inserting into the interior of the polygon insertion groove 510. The structural shape of the cross-section of the polygon insertion groove 510 is the same as that of the cross-section of the polygon insertion post 511, both being polygon structures, and the structural size of the cross-section of the polygon insertion groove 510 matches the structural size of the cross-section of the polygon insertion post 511. The structural shape of the cross-section of the horizontal component moving cavity 53 is the same as that of the cross-section of the polygon limiting plate 55, both being polygon structures, and the structural size of the cross-section of the horizontal component moving cavity 53 matches the structural size of the cross-section of the polygon limiting plate 55.

[0036] To prevent the driving motor 2 from being overloaded and causing the light-shielding blade 47 to be bent and damaged, please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8, it is necessary to set up a torque strength control mechanism 6, inside which is provided a hollow disk body 61 that rotates with the rotor 3 of the driving motor 2, an inner rotating column 610 that can drive the No. 2 horizontal rotating shaft 49 to rotate, and an arc-shaped contact plate 69 that can link the hollow disk body 61 and the inner rotating column 610 by friction. When the torque resistance formed by the rotor 3 on the shading blade 47 is less than the maximum static friction force between the arc-shaped contact plate 69 and the inner rotating column 610, the driving motor 2 can work normally. Once the torque resistance formed by the rotor 3 on the shading blade 47 is greater than the maximum static friction force between the arc-shaped contact plate 69 and the inner rotating column 610, the rotor 3 will rotate relative to the No. 2 horizontal rotating shaft 49, and the No. 2 horizontal rotating shaft 49 will be in a stationary state, so that the torque force on the shading blade 47 will not continue to increase, thereby preventing the driving motor 2 from being overloaded and causing the shading blade 47 to bend and be damaged.

[0037] For the specific structure of the torque intensity control mechanism 6, please refer to Figure 7 and Figure 8 , comprising a hollow disk body 61 and an inner rotating column 610, wherein the upper end surface of the hollow disk body 61 is provided with a rotor fixing groove 62 for fixing and installing the rotor 3, the center of the hollow disk body 61 is provided with a columnar component installation cavity 63, the bottom center of the hollow disk body 61 is provided with an axle body fixing channel 64, the axle body of the second horizontal rotating shaft 49 is installed inside the axle body fixing channel 64 through a bearing, the center of the columnar component installation cavity 63 is provided with an inner rotating column 610, the bottom center of the inner rotating column 610 is provided with an axle body fixing groove 611 for fixing and installing the second horizontal rotating shaft 49, the hollow disk body 61 is provided with a plurality of annular array-type axial component movable cavities 65 on the periphery of the columnar component installation cavity 63, and the circumferential side surfaces of the axial component movable cavities 65 and the columnar component installation cavity 63 are passed through The shaft body telescopic hole 66 is connected, and the hollow disk body 61 is provided with an inner movable plate 67 capable of axially moving along the cylindrical component mounting cavity 63 inside the cylindrical component mounting cavity 63, and a No. 2 coil spring 68 is placed at one end of the inner movable plate 67, and a connecting shaft body that passes through the shaft body telescopic hole 66 is fixedly installed on the other end of the inner movable plate 67, and an arc-shaped contact plate 69 that abuts against the circumferential surface of the inner rotating column 610 is fixedly installed on one end of the connecting shaft body located inside the cylindrical component mounting cavity 63, one end of the No. 2 coil spring 68 abuts against one end surface of the inner movable plate 67, and the other end abuts against one end surface of the axial component movable cavity 65, and the No. 2 coil spring 68 is in a compressed state, and the structural radius of the inner concave surface of the arc-shaped contact plate 69 matches the structural radius of the inner rotating column 610.

[0038] In use, install the device normally according to the installation procedure. When the shading angle needs to be adjusted, start the driving motor 2 and control the steering angle of the rotor 3 through the controller. After the second horizontal rotating shaft 49 rotates, due to the linkage effect of the synchronous belt 46, a plurality of shading blades 47 will be driven to rotate synchronously and at the same angle, thereby achieving a parallel shading effect;

[0039] When a new shading blade 47 needs to be replaced, first, the staff applies a force towards the center of symmetry to the disc-shaped force-applying plate 58 with both hands until the polygonal insertion post 511 disengages from the polygonal insertion groove 510, and then take out the damaged shading blade 47. Then, select a new damaged shading blade 47. Similarly, apply a force towards the center of symmetry to the disc-shaped force-applying plate 58. When the polygonal insertion post 511 aligns with the polygonal insertion groove 510, release the force on the disc-shaped force-applying plate 58. Under the elastic action of the first helical spring 56, the polygonal insertion groove 510 will insert into the interior of the polygonal insertion post 511, thereby realizing the replacement of the shading blade 47.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic two-way dimming blind, comprising a drive motor (2) fixedly mounted in a motor fixing base (1), characterized in that: Also includes, An arranged shutter mechanism (4) is provided with two symmetrically arranged strip-shaped brackets (41), a first horizontal rotating shaft (43) installed in the strip-shaped brackets (41) through bearings and arranged in a longitudinal direction, a plurality of light-shielding blades (47) located in the center area of ​​the two strip-shaped brackets (41) and capable of rotating with the first horizontal rotating shaft (43), a double synchronous belt pulley (45) for making the plurality of the first horizontal rotating shafts (43) rotate synchronously, and a second horizontal rotating shaft (49) fixedly installed at the end of one of the double synchronous belt pulleys (45), capable of rotating with the rotor (3) of the driving motor (2) and capable of driving the double synchronous belt pulley (45) to rotate; and a telescopic driven mechanism (5), which is provided with an axle body docking block (59) fixedly connected to one end of a first horizontal rotating shaft (43), a hollow rotating column (51) connected to the rotating end of a light shielding blade (47) and capable of driving the light shielding blade (47) to rotate, a polygonal insertion column (511) capable of moving in the axial direction of the hollow rotating column (51) and capable of being inserted into the axle body docking block (59), and a first coil spring (56) producing an elastic damping effect on the polygonal insertion column (511).

2. The automatic two-way dimming blind according to claim 1, characterized in that: The arrangement type shutter mechanism (4) comprises two symmetrical strip-shaped brackets (41), wherein the strip-shaped brackets (41) are provided with a plurality of first shaft body mounting holes (42) for longitudinal material discharging, wherein the strip-shaped brackets (41) are respectively provided with a first horizontal rotating shaft (43) capable of rotating axially inside each of the first shaft body mounting holes (42), wherein a first docking plate (44) is respectively provided at the opposite ends of each two symmetrical first horizontal rotating shafts (43), wherein a shading blade (47) capable of shading is provided between each two strip-shaped brackets (41) of symmetrical height, wherein a double synchronous pulley (45) is respectively fixedly provided at the other end of each first horizontal rotating shaft (43), wherein each two double synchronous pulleys (45) are linked by a synchronous belt (46), and a second horizontal rotating shaft (49) is fixedly provided at the end of a double synchronous pulley (45) located in the middle through a second docking plate (48).

3. The automatic two-way dimming blinds according to claim 2, characterized in that: The corners of the shading blades (47) are provided with rounded corner structures.

4. The automatic two-way dimming blinds according to claim 3, characterized in that: The width of the shading blade (47) is sufficient to effectively block sunlight when the shading blade (47) is closed.

5. The automatic two-way dimming blind according to claim 4, characterized in that: The telescopic driven mechanism (5) comprises a hollow rotating column (51) and an axial docking block (59), one end face of the axial docking block (59) is fixedly connected to one end of the first docking plate (44), the other end face of the axial docking block (59) is provided with a polygonal insertion groove (510) with an inwardly concave structure, one end face of the hollow rotating column (51) is provided with a flat embedding groove (52) with an inwardly concave structure and used for fixing and installing the shading blade (47), the interior of the hollow rotating column (51) is provided with a horizontal component active cavity (53), the other end of the hollow rotating column (51) is provided with a first axial body through hole (54) connecting one end of the horizontal component active cavity (53) and the external space, and the hollow rotating column (51) is provided with a plurality of holes (54) that can be moved along the horizontal component in the interior of the horizontal component active cavity (53). A polygonal limit plate (55) is provided for axial movement in the movable cavity (53) of the horizontal component, and the polygonal limit plate (55) is fixedly mounted on a horizontal telescopic shaft (57) which passes through the No. 1 shaft through hole (54) at one end surface facing the No. 1 shaft through hole (54). The hollow rotating column (51) is provided with a No. 1 coil spring (56) which generates elastic pressure on the polygonal limit plate (55) in the direction of the shaft docking block (59) inside the movable cavity (53) of the horizontal component, and the horizontal telescopic shaft (57) is fixedly mounted with a disc-shaped force plate (58) at one end located outside the hollow rotating column (51), and the disc-shaped force plate (58) is provided with a polygonal insertion column (511) which is an integral structure with the disc-shaped force plate (58) and can be inserted into the polygonal insertion groove (510) at one end surface facing the shaft docking block (59).

6. The automatic two-way dimming blind according to claim 5, characterized in that: The structural shape of the cross section of the polygonal insertion groove (510) is consistent with the structural shape of the cross section of the polygonal insertion column (511), both of which are polygonal structures, and the structural dimensions of the cross section of the polygonal insertion groove (510) match the structural dimensions of the cross section of the polygonal insertion column (511).

7. The automatic two-way dimming blind according to claim 6, characterized in that: The structural shape of the cross section of the horizontal component movable cavity (53) is consistent with the structural shape of the cross section of the polygonal limiting plate (55), both of which are polygonal structures, and the structural dimensions of the cross section of the horizontal component movable cavity (53) match the structural dimensions of the cross section of the polygonal limiting plate (55).

8. An automatic two-way dimming blind according to any one of claims 2 to 7, characterized in that: The invention also comprises a torque strength control mechanism (6), which is provided with a hollow disk (61) rotating with the rotor (3) of the driving motor (2), an inner rotating column (610) capable of driving the second horizontal rotating shaft (49) to rotate, and an arc-shaped contact plate (69) capable of making the hollow disk (61) and the inner rotating column (610) move in conjunction with each other by means of friction.

9. The automatic two-way dimming blind according to claim 8, characterized in that: The torque strength control mechanism (6) comprises a hollow disk (61) and an inner rotating column (610), the upper end surface of the hollow disk (61) is provided with a rotor fixing groove (62) for fixing and installing the rotor (3), the center of the hollow disk (61) is provided with a columnar component installation cavity (63), the bottom center of the hollow disk (61) is provided with an axle fixing channel (64), the axle of the second horizontal rotating shaft (49) is installed inside the axle fixing channel (64) through a bearing, the center of the columnar component installation cavity (63) is provided with an inner rotating column (610), the bottom center of the inner rotating column (610) is provided with an axle fixing groove (611) for fixing and installing the second horizontal rotating shaft (49), the hollow disk (61) is located at the columnar component A plurality of annular array-type axial component movable cavities (65) are arranged on the periphery of the mounting cavity (63); the axial component movable cavities (65) and the circumferential side surfaces of the columnar component mounting cavity (63) are connected via an axle body telescopic hole (66); the hollow disk body (61) is provided with an inner movable plate (67) capable of axially moving along the columnar component mounting cavity (63) inside the columnar component mounting cavity (63); a No. 2 coil spring (68) is provided at one end of the inner movable plate (67); a connecting shaft body penetrating the axle body telescopic hole (66) is fixedly installed at the other end of the inner movable plate (67); and an arc-shaped contact plate (69) that contacts the circumferential surface of the inner rotating column (610) is fixedly installed at one end of the connecting shaft body located inside the columnar component mounting cavity (63).

10. The automatic two-way dimming blind according to claim 9, characterized in that: One end of the No. 2 coil spring (68) abuts against one end surface of the inner movable plate (67), and the other end abuts against one end surface of the movable cavity (65) of the axial component, and the No. 2 coil spring (68) is in a compressed state, and the structural radius of the inner concave surface of the arc-shaped abutment plate (69) matches the structural radius of the inner rotating column (610).

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