Electric sunshade curtain

Abstract

The application relates to an electric sunshade curtain which comprises a lower curtain motor and a connecting rod, the connecting rod is connected with rotating assemblies, the rotating assemblies are four sets and are installed at four corners of aluminum profiles; the rotating assemblies are connected with synchronous belts, the synchronous belts are clamped with sliding blocks, the sliding blocks are fixed with lower window curtain cloths; the rotating assemblies are composed of gear box parts and driving wheel parts, the gear box parts comprise synchronous wheels, the synchronous wheels are sleeved with driven wheels, rolling bearings are installed at two ends of the synchronous wheels respectively; the driving wheel parts comprise driving wheels, the driving wheels and the driven wheels are mutually meshed to drive, the other end of the driving wheel is clamped with the connecting rod, end covers are arranged outside the driving wheels, and the end covers are fixedly connected with the aluminum profiles. Through the composition of the rotating assemblies by the gear box parts and the driving wheel parts, when the rotating assemblies are installed, the two parts of the driving wheels and the driven wheels are randomly staggered at angles, the driving wheels can be directly and smoothly inserted into the driven wheels, and the gear transmission is an internal meshing structure, so that the rotating assemblies are good in silence.

Description

Technical Field

[0001] This invention relates to the field of smart home manufacturing technology, and in particular to an electric sunshade. Background Technology

[0002] Curtains are common decorative items, serving functions such as sun shading, heat insulation, and regulating indoor light. There are various types of curtains, such as swing curtains, beaded roller blinds, and pleated blinds. Curtains are usually opened and closed manually. However, with technological advancements and rising demands for a higher standard of living in the home, motorized curtains have emerged. Motorized curtains consist of a motor assembly, a track, and hanging components. The motor drives the hanging components to slide along the track, automatically controlling the opening and closing of the curtains.

[0003] With the increasing popularity of sunrooms, constructed from glass and metal frames, they allow sunlight to penetrate through both the roof and walls, making this style of design increasingly sought after in recent years. Sunrooms typically feature sunshades on the roof and walls. When sunlight is not desired, these curtains can be drawn. Currently, motorized sunshades are commonly used. Existing motorized sunshades on the roof generally consist of two side rails and two front and rear motor tracks. The side rails and motor tracks form a square frame for the sunshade. A motor is installed in the motor track, while a timing belt and slider are installed in the side rails. After the slider is fixed to the curtain fabric, the motor starts, allowing the curtain fabric to move up and down.

[0004] Chinese Patent Publication (Announcement) No.: CN106836668B, Patent Title: Split-Type Simple Electric Canopy Sunshade Curtain, which discloses the following technical solution: "

[0004] The technical solution of the split-type simple electric canopy sunshade curtain of the present invention is: characterized in that it includes two side rails, the side rails are provided with a sliding groove and a synchronous belt groove... a synchronous wheel is provided in the motor connecting seat, the outer wall of the synchronous wheel cooperates with the synchronous belt, an end cover is provided on the motor connecting seat... a motor is provided in the upper cover at the front end of the two side rails, one end of the motor cooperates with the motor connecting seat, and the output shaft of the motor passes through the motor connecting seat and is connected to the synchronous wheel..." In this technical solution, the output shaft of the motor passes through the motor connecting seat and is connected to the synchronous wheel, and from its attached... Figure 2 As can be seen from the image, the output shaft of motor 23 is square in shape. During assembly, it is inserted into the corresponding square cavity of synchronous pulley 9 to transmit power.

[0005] In practical applications, the assembled electric sunshade is large and heavy, making transportation inconvenient. Therefore, the entire assembly of the electric sunshade is carried out on-site by the user. When installing the synchronous pulley onto the motor, the square inner cavity of the synchronous pulley must be aligned with the square output shaft of the motor, meaning the four sides must be aligned for successful assembly. If the two parts are misaligned by a certain angle, even a slight misalignment will prevent them from being inserted. Since the motor or synchronous pulley is already in a semi-assembled state, the installation posture cannot be adjusted arbitrarily, which will cause inconvenience during installation.

[0006] In addition, as shown in Chinese Patent Publication (Announcement) No.: CN220275365U, patent title: Electric Curtain, it discloses that "

[0044] the transmission assembly also includes a transmission wheel 320, a gear assembly and a transmission shaft 330, the gear assembly includes a first bevel gear 340, a second bevel gear 350, a third bevel gear 360 and a fourth bevel gear 370... the third bevel gear 360 is disposed at one end of the transmission shaft 330 located in the motor box 500 and meshes with the first bevel gear 340, the fourth bevel gear 370 is disposed at one end of the transmission shaft 330 located in the transmission box 510 and meshes with the second bevel gear 350."

[0007] This gear assembly uses bevel gears for meshing, which is an external meshing structure. However, the gear penetration depth and noise reduction are insufficient, leaving room for improvement. Summary of the Invention

[0008] The purpose of this invention is to provide an electric sunshade to solve the problems mentioned in the background art.

[0009] To solve the above-mentioned technical problems, the present invention is achieved through the following technical measures: an electric sunshade curtain, comprising an aluminum profile serving as a four-sided frame, characterized in that: a lower curtain motor is disposed within the aluminum profile, a connecting rod is disposed in front of the lower curtain motor, and a rotating assembly is connected to the other end of the connecting rod; four sets of rotating assemblies are respectively installed at the four corners of the aluminum profile; a synchronous belt is externally connected to the rotating assembly, and a slider is engaged on the synchronous belt, with the lower curtain fabric fixed to the slider; the rotating assembly consists of a gearbox section and a drive wheel section; the gearbox section includes a synchronous wheel, one end of which is sleeved with a driven wheel, and rolling bearings are respectively installed at both ends of the synchronous wheel, which are respectively engaged with the housing and the upper cover plate; the drive wheel section includes a drive wheel, which meshes with the driven wheel for transmission; the other end of the drive wheel is engaged with the connecting rod; an end cap is disposed outside the drive wheel, and the end cap is fixedly connected to the aluminum profile.

[0010] The driving wheel is equipped with an external gear, and the driven wheel has an internal gear on its inner wall. The external gear can just fill the entire internal gear. The purpose of this design is to allow the driving wheel and the driven wheel to transmit power through a 1:1 transmission ratio, which can result in high torque, smooth operation, and good noise reduction.

[0011] The tooth tips of the driving gear and the driven gear are triangular. The purpose of this design is to change the original surface-to-surface contact of the two gears during the meshing process to a point-to-point contact (equivalent to line-to-line contact), so that the driving gear can smoothly insert into the driven gear.

[0012] The pitch of the driving gear is P2, and the pitch of the driven gear is P1, where P2 = 2P1. The purpose of this design is to reduce the contact area between the teeth, thereby further reducing the resistance encountered during gear insertion and facilitating smooth assembly.

[0013] The slider's main body is square, with smooth, flat surfaces on the top and bottom. Ventilation slots are provided on its four sides. A power chamber for fixing the timing belt is located on the main body, and the power chamber has a rack-shaped notch for meshing with the timing belt. Small cavities and large cavities are also provided on the main body. The purpose of this design is that the ventilation slot is a U-shaped groove penetrating the slider. Since the slider moves within the aluminum profile, it is essentially a clearance fit. The ventilation slot allows for pressure balance, ensuring smooth vertical movement of the slider. The power chamber houses the timing belt, which moves with the slider. Due to the space constraints of the aluminum profile, the timing belt will not fall out. Small cavities are provided on the main body to hold one side of the second timing belt, and large cavities are provided to hold the other side of the second timing belt and one side of the first timing belt.

[0014] A snap-fit ​​bracket is installed on the back of the slider. The purpose of this design is that after the snap-fit ​​bracket is fixed to the slider, the curtain fabric fixed to the other end of the snap-fit ​​bracket can move up and down with the slider.

[0015] The slider is equipped with a weight-reducing cavity and a balancing cavity. The purpose of this design is to reduce the slider's weight and energy consumption while meeting all performance requirements. The balancing cavity is a hollowed-out, waist-shaped opening designed to balance the weight across the slider, preventing tilting during movement due to uneven weight distribution and friction with adjacent aluminum profiles. Additionally, it provides ventilation, maintaining a balance of air pressure.

[0016] Compared with the prior art, the advantages of this invention are as follows: by composing the rotating assembly into a gearbox section and a driving wheel section, the driving wheel and driven wheel can be offset at any angle during installation, allowing the driving wheel to be directly and smoothly inserted into the driven wheel, making installation and disassembly very convenient. Furthermore, because the gear transmission is an internal meshing structure, it features high transmission efficiency, large torque, and smooth operation, resulting in strong gear penetration depth and good noise reduction.

[0017] As an improvement of the present invention, the housing is provided with a slanted buckle, a waist-shaped groove, and a waist-shaped post on the end cap. The purpose of this design is that the slanted buckle can be directly inserted into the aluminum profile, making the housing quick and easy to install and disassemble. The waist-shaped groove on the other side of the housing is used to accommodate the waist-shaped post on the end cap, allowing both to be directly inserted for assembly, achieving pre-fixation and further facilitating quick and easy installation and disassembly. Attached Figure Description

[0018] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0019] In the attached diagram:

[0020] Figure 1 This is a perspective view of the electric sunshade curtain (single unit) described in this invention.

[0021] Figure 2 This is a schematic diagram of the installation of the rotating assembly described in this invention.

[0022] Figure 3 This is a partial exploded view of the rotating assembly described in this invention.

[0023] Figure 4 This is an exploded view of the rotating assembly described in this invention.

[0024] Figure 5 The three-dimensional form of the slider described in this invention Figure 1 .

[0025] Figure 6 is a cross-sectional view of the slider and timing belt described in this invention.

[0026] Figure 7 is a perspective view of the electric sunshade curtain (double set) of the present invention.

[0027] Figure 8 This is a schematic diagram of the internal meshing of the driving wheel and the driven wheel according to the present invention.

[0028] Figure 9 This is an enlarged view of part A as described in this invention.

[0029] Figure 10 This is a perspective view of the connecting rod described in this invention.

[0030] Figure 11 The three-dimensional form of the slider described in this invention Figure 2 .

[0031] Explanation of reference numerals in the attached drawings: 1. Upper and lower aluminum profiles; 2. Lower curtain motor; 3. Connecting rod; 4. Rotating assembly; 5. Synchronous belt; 6. Slider; 7. Lower curtain fabric; 8. Gearbox; 9. Drive wheel; 10. Synchronous pulley; 11. Driven wheel; 12. Rolling bearing; 13. Housing; 14. Top cover; 15. Drive wheel; 16. End cover; 17. Triangular tooth tip; 18. Ventilation slot; 19. Power chamber; 20. Rack-shaped notch ; 21. Small cavity; 22. Large cavity; 23. Buckle bracket; 24. Weight reduction cavity; 25. Balance cavity; 26. Angled buckle; 27. Waist-shaped groove; 28. Waist-shaped column; 29. ​​Square rod; 30. Coupling; 31. First synchronous belt; 32. Second synchronous belt; 33. Upper curtain motor; 34. Upper curtain fabric; 36. Center line of driving gear teeth; 37. Center line of driven gear teeth; 38. Square inner cavity; 39. Left and right aluminum profiles. Detailed Implementation

[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0033] Example 1

[0034] This embodiment provides an electric sunshade curtain; please refer to [reference needed]. Figure 1 Taking a single motor controlling a curtain as an example, an electric sunshade consists of aluminum profiles, a lower curtain motor 2, a rotating assembly 4, a synchronous belt 5, a slider 6, the lower curtain fabric 7, a rotating assembly 4, a square rod 29, a coupling 30, a rotating assembly 4, a synchronous belt 5, a slider 6, and a rotating assembly 4, etc. (in) Figure 1 (In the following is a brief introduction to each component, proceeding counterclockwise.) The aluminum profile serves as the frame, forming upper and lower aluminum profiles 1 and left and right side aluminum profiles 39 on all four sides of the electric sunshade. Four sets of rotating components 4 are installed at the four corners of the electric sunshade. Two synchronous belts 5 are installed inside the left and right side aluminum profiles 39. Two sets of sliders 6 are connected and fixed to the synchronous belts 5. During operation, the lower curtain motor 2 starts rotating. The upper left rotating component 4 converts the motor's rotational motion into the up-and-down movement of the left synchronous belt 5. The left synchronous belt 5, through the lower left rotating component 4, converts the up-and-down motion into rotational motion, which is then transmitted to the square rod 29. The square rod 29, through the lower right rotating component 4, drives the right synchronous belt 5 to move up and down. The sliders 6 fixed to the right synchronous belt 5 move up and down synchronously, ultimately achieving the up-and-down movement of the lower curtain fabric 7.

[0035] Please refer to Figure 1-11This embodiment provides an electric sunshade curtain, comprising aluminum profiles serving as the four-sided frame. A lower curtain motor 2 is disposed within the upper and lower aluminum profiles 1. A connecting rod 3 is disposed in front of the lower curtain motor 2, and the other end of the connecting rod 3 is connected to a rotating assembly 4. Four sets of rotating assemblies 4 are respectively installed at the four corners of the aluminum profiles. A synchronous belt 5 is externally connected to the rotating assembly 4, and a slider 6 is engaged with the synchronous belt 5. The slider 6 fixes the lower curtain fabric 7 to the lower curtain fabric. The rotating assembly 4 consists of a gearbox section 8 and a drive wheel section 9. 8 includes a synchronous pulley 10, one end of which is sleeved with a driven pulley 11. Rolling bearings 12 are installed at both ends of the synchronous pulley 10, and the rolling bearings 12 at both ends are respectively engaged with the housing 13 and the upper cover plate 14. The driving pulley part 9 includes a driving pulley 15, which meshes with the driven pulley 11 for transmission. The other end of the driving pulley 15 is engaged with the connecting rod 3. An end cover 16 is provided on the outside of the driving pulley 15. The end cover 16 and the aluminum profile are pre-installed in the profile to achieve a detachable fixed connection.

[0036] In the embodiments of this invention application, please refer to Figure 2 The lower curtain motor 2 is installed inside the upper and lower aluminum profiles 1 on the top side. The lower curtain motor 2 is a commercially available part, and a connecting rod 3 is snapped into the front of the lower curtain motor 2.

[0037] In the embodiments of this invention application, please refer to Figure 4 One end of the connecting rod 3 (a toothed hexagonal head shape) extends into the lower curtain motor 2 for fixed connection, and the other end of the connecting rod 3 is square, extending into the inner cavity of the drive wheel 15 of the rotating assembly 4 for fixed connection, transmitting power. It should be noted that there are four sets of rotating assemblies 4, installed at the four corners of the aluminum profile: the upper left rotating assembly 4, the lower left rotating assembly 4, the lower right rotating assembly 4, and the upper right rotating assembly 4. Their constituent parts are all the same (except for the connecting rod 3). The connecting rod 3 of the upper left rotating assembly 4 is as follows... Figure 3 and Figure 4 As shown, one end is connected to the lower curtain motor 2. Please refer to... Figure 1 and Figure 10 The lower left rotating assembly 4 and the lower right rotating assembly 4 are connected by two square rods 29 on the left and right sides and a coupling 30 that fixes them through a square inner cavity 38 to transmit power. The upper right rotating assembly 4 does not need to transmit power, so this part is not required.

[0038] In the embodiments of this invention application, please refer to Figure 3The rotating assembly 4 consists of two modules: a gearbox section 8 and a drive wheel section 9. The housing 13 has two oblong grooves 27, and the end cap 16 has two oblong posts 28. When the two modules need to be installed, they can be directly inserted to achieve pre-fixation, making installation and disassembly quick and convenient. Simultaneously, the housing 13 is equipped with angled buckles 26, which can be directly inserted into the left and right aluminum profiles 39, allowing the housing 13 to be quickly installed on the left and right aluminum profiles 39.

[0039] In the embodiments of this invention application, please refer to Figure 4 The gearbox section 8 includes a synchronous pulley 10, one end of which is fitted with a driven pulley 11. Rolling bearings 12 are installed at both ends of the synchronous pulley 10. The rolling bearings 12 at both ends are respectively engaged with the housing 13 (with bearing seats inside) and the upper cover plate 14 (with bearing seats), forming the gearbox section 8 module.

[0040] In the embodiments of this invention application, please refer to Figure 4 The active wheel 9 includes an active wheel 15, which meshes with the driven wheel 11 for transmission. The other end of the active wheel 15 is engaged with the connecting rod 3. An end cover 16 is provided on the outside of the active wheel 15. The end cover 16 is pre-installed in the aluminum profile and is mainly used for quick disassembly and assembly of the aluminum profile to achieve modular assembly.

[0041] In the embodiments of this invention application, please refer to Figure 8 The driving wheel 15 is equipped with an external gear, and the driven wheel 11 has an internal gear on its inner wall. The external gear can just fill the entire internal gear. By transmitting power between the driving wheel 15 and the driven wheel 11 through a transmission ratio of 1:1, high torque and smooth operation can be achieved, resulting in good noise reduction.

[0042] Furthermore, the tooth pitch of the driving gear 15 is P2, and the tooth pitch of the driven gear 11 is P1, where P2 = 2P1. This reduces the contact area between the teeth, thereby further reducing the resistance encountered during gear insertion and facilitating smooth assembly.

[0043] In the embodiments of this invention application, please refer to Figure 9 The tooth tips of the driving gear 15 and the driven gear 11 are triangular tooth tips 17. In order to change the original surface-to-surface contact of the two gears to point-to-point contact (equivalent to line-to-line contact) during the meshing process, the driving gear 15 can be smoothly inserted into the driven gear 11.

[0044] Furthermore, in this novel structure, when the driving gear 15 and the driven gear 11 are assembled, the center lines 36 and 37 of the adjacent driving gear teeth will not completely overlap. Please refer to [reference needed]. Figure 9 Even if the tip of the tooth of the driving gear 15 just touches the tip of the tooth of the driven gear 11, the pitch circle radii of the two meshing gears are definitely different. The two center lines will definitely form a certain angle. When subjected to force, due to the angle, the gears will not completely lock up due to the influence of the component force, so they can smoothly insert and mesh.

[0045] In the embodiments of this invention application, please refer to Figure 5 and Figure 6 The main body of the slider 6 is a square body with flat and smooth surfaces on the top and bottom. Ventilation slots 18 are provided on the four sides of the body. The ventilation slots 18 are U-shaped slots that pass through the slider 6. Since the slider 6 moves within the aluminum profiles 39 on the left and right sides, it is basically a clearance fit. The ventilation slots 18 can balance the air pressure above and below, making the slider 6 move up and down smoothly.

[0046] Furthermore, a power cavity 19 for fixing the synchronous belt 5 is provided on the main body. The power cavity 19 is provided with a rack-shaped notch 20 that meshes with the synchronous belt 5. The power cavity 19 is used to place the synchronous belt 5. The synchronous belt 5 moves with the slider 6. Due to the space limitation of the aluminum profiles 39 on the left and right sides, the synchronous belt 5 will not fall out naturally.

[0047] Furthermore, a small cavity 21 and a large cavity 22 are provided on the main body. The small cavity 21 is used to house one side of the second synchronous belt 32, and the large cavity 22 is used to house the other side of the second synchronous belt 32 and one side of the first synchronous belt 31.

[0048] Furthermore, a weight-reducing cavity 24 is provided on the slider 6. The function of the weight-reducing cavity 24 is to reduce the weight of the slider 6 and reduce energy consumption while meeting the various performance requirements of the slider 6.

[0049] Furthermore, a balance cavity 25 is provided on the slider 6. The balance cavity 25 is a hollowed-out waist-shaped hole. It is designed to balance the weight of each area of ​​the slider 6 and prevent it from tilting during movement due to uneven weight distribution on one side, which would cause friction with the aluminum profiles 39 on the left and right sides. In addition, it also serves as a ventilation function to maintain the balance of air pressure.

[0050] In the embodiments of this invention application, please refer to Figure 11 A snap-fit ​​bracket 23 is installed on the back of the slider 6. After the snap-fit ​​bracket 23 is fixed to the slider 6, the curtain fabric fixed to the other end of the snap-fit ​​bracket 23 can move up and down with the slider 6.

[0051] It should be noted that, please refer to Figure 7 In this embodiment, the electric sunshade is a split type, consisting of an upper curtain fabric 34 and a lower curtain fabric 7. Both close and open simultaneously during operation, thus requiring an additional dual-power assembly, such as an upper curtain motor 33. Its working principle is the same as that of a single-motor control system. For details in this embodiment, please refer to... Figure 7 In the middle, the output shaft of the newly added upper curtain motor 33 and the lower curtain motor both face to the left. It should be noted that customers can also oriented the output shaft of the upper curtain motor 33 to the right as needed, that is, install one motor on the left and the other on the right.

[0052] Compared with the prior art, the advantages of this invention are as follows: By combining the rotating assembly 4 with a gearbox section 8 and a driving wheel section 9, during installation, the driving wheel 15 and the driven wheel 11 can be offset at any angle, allowing the driving wheel 15 to be directly and smoothly inserted into the driven wheel 11, making installation and disassembly very convenient. Furthermore, since the gear transmission is an internal meshing structure, it has high transmission efficiency, large torque, and smooth operation, resulting in strong gear penetration depth and good noise reduction. In addition, the slider 6 can pass through one synchronous belt 5 or, as needed, two synchronous belts 5, offering strong versatility. The same rotating assembly 4 can be used at the four corners of an electric sunshade, offering high versatility and reducing production costs.

[0053] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0054] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0055] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A motorized sunblind comprising an aluminium profile (1) as a four- sided frame, characterized in that The aluminium profile (1) is provided with a lower curtain motor (2), the lower curtain motor (2) is provided with a connecting rod (3), the other end of the connecting rod (3) is connected with a rotating assembly (4), the rotating assembly (4) has four sets, is installed at four corners of the aluminium profile (1) respectively, the rotating assembly (4) is provided with a synchronous belt (5), the synchronous belt (5) is clamped with a sliding block (6), the sliding block (6) is fixed with a lower window curtain cloth (7), the rotating assembly (4) is composed of a gear box part (8) and a driving wheel part (9), the gear box part (8) includes a synchronous wheel (10), one end of the synchronous wheel (10) is sleeved with a driven wheel (11), rolling bearings (12) are installed at both ends thereof respectively, the rolling bearings (12) at both ends are clamped on a box body (13) and an upper cover plate (14) respectively, the driving wheel part (9) includes a driving wheel (15), the other end of the driving wheel (15) is clamped with the connecting rod (3), the driving wheel (15) is provided with an end cover (16), the end cover (16) is fixedly connected with the aluminium profile (1), the driving wheel (15) is provided with an external gear, the inner wall of the driven wheel (11) is provided with an internal gear, the external gear can just insert the whole internal gear, the tooth top shape of the driving wheel (15) and the driven wheel (11) is a triangular tooth top (17), the pitch of the driving wheel (15) is P2, the pitch of the driven wheel (11) is P1, wherein, P2=2P1, the main body of the sliding block (6) is a square body, the upper and lower surfaces of the body are smooth, the four side surfaces of the body are provided with ventilation grooves (18), the body is provided with a power cavity (19) for fixing the synchronous belt (5), the power cavity (19) is provided with a rack-shaped notch (20) engaged with the synchronous belt (5), the body is provided with a small cavity (21), the body is provided with a large cavity (22), the back surface of the sliding block (6) is provided with a buckle support (23), the sliding block (6) is provided with a weight-reducing cavity (24) and a balance cavity (25).

2. The motorized shade of claim 1, wherein: The box body (13) is provided with an inclined buckle (26), the box body (13) is provided with a waist-shaped groove (27), the end cover (16) is provided with a waist-shaped column (28).

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