An electric curtain track

Abstract

This invention relates to an electric curtain track, comprising a housing and a ring-shaped belt disposed within the housing. The housing contains at least one set of sliding mechanisms, comprising multiple sliding mechanisms arranged sequentially along the belt. These sliding mechanisms are connected to the belt on the same side and can rotate or move synchronously with the belt. The sliding mechanisms are connected by connecting belts. One end of each of the at least one set of sliding mechanisms is connected to a drive belt, which is fixedly connected to the belt and moves horizontally with it. The drive belt and connecting belt drive the sliding mechanisms to move horizontally along the belt. This electric curtain track only requires the horizontal movement of the belt to control the rotation of the curtain slats, achieving the conversion between light blocking and light transmission. It also simultaneously opens and closes the curtains, providing fully automatic control. Furthermore, it requires only one motor for control, eliminating the need for two separate control systems, making it convenient to use.

Description

Technical Field

[0001] This invention relates to the field of smart homes, and in particular to an electric curtain track. Background Technology

[0002] As a representative of smart home technology, electric curtains have brought great convenience to people's lives. Users can use remote control to open and close the electric curtains, making them convenient and intelligent to use.

[0003] Existing motorized curtains generally include a track and transmission boxes located at both ends of the track. The transmission boxes contain motors and transmission mechanisms, which drive the transmission belt inside the track to move. A slider is fixedly connected to the transmission belt, which in turn drives the slider inside the track to slide along the track, thereby opening and closing the curtains.

[0004] Generally, controlling motorized vertical blinds involves not only opening and closing the blinds but also controlling the rotation of the vertical slats. The vertical slats typically rotate 90 degrees around a vertical axis to achieve light blocking or transmission. Most commercially available vertical blind control mechanisms use two separate cords: one controls the rotation of the vertical slats around the axis, and the other controls the opening and closing of the entire blind. However, this two-cord control system is not only structurally complex and inconvenient to implement, but also difficult to control, prone to errors, and for automatically controlled motorized blinds, lacks automation, significantly impacting the user experience. Summary of the Invention

[0005] In view of this, embodiments of the present invention provide an electric curtain track that can automatically control the rotation of the blades of an electric vertical blind around a vertical axis and the opening and closing of the electric curtain through a single operation.

[0006] To address the above problems, the embodiments of the present invention mainly provide the following technical solutions:

[0007] An electric curtain track includes a housing and a ring-shaped belt disposed within the housing. Gears are provided at both ends of the housing, and the belt is wound around the gears at both ends. A drive mechanism drives the belt to rotate around the gears at both ends in a ring shape via one of the gears at one end. The track is characterized in that: at least one set of sliding mechanisms is provided within the housing; each set of at least one sliding mechanism includes multiple sliding mechanisms arranged sequentially along the belt; the multiple sliding mechanisms are connected to the belt on the same side and can rotate or move synchronously with the movement of the belt; the multiple sliding mechanisms are connected to each other via a connecting belt; one of the two ends of at least one set of sliding mechanisms is connected to a drive belt; the drive belt is fixedly connected to the belt and moves horizontally with the belt; the drive belt and the connecting belt drive the sliding mechanism to move horizontally along the belt.

[0008] Preferably, the drive belt and the sliding mechanism, and the connecting belt and the sliding mechanism are all movably connected. The sliding mechanism includes a bracket and a pulley that is vertically arranged axially inside the bracket. The bracket also includes a transmission mechanism and a clamping member. The pulley is connected to the clamping member through the transmission mechanism. The transmission mechanism includes a clutch structure. When the drive belt moves with the belt, it first drives the clutch structure in the sliding mechanism to engage and then disengage.

[0009] Preferably, the bottom of the clamping member is exposed outside the bracket for connecting the curtain slats, and one side of the pulley is exposed outside the bracket and engages with the belt, allowing it to rotate relative to the belt or move horizontally with the belt. In the engaged state, the pulley and the clamping member rotate synchronously, and in the disengaged state, the pulley and the clamping member separate from each other in the direction of rotation.

[0010] Preferably, in the engaged state, the pulley and the clamping member rotate synchronously by a preset angle and then separate from each other. In the separated state, the pulley rotates in the opposite direction and re-engages with the clamping member, and then rotates by another preset angle and separates from each other again.

[0011] Preferably, the transmission mechanism includes a transmission wheel, the pulley is connected to the transmission wheel and can synchronously drive the transmission wheel to rotate, the clutch structure includes a clutch member, the clutch member is connected to the clamping member and can rotate coaxially, a spring is provided between the clutch member and the clamping member, the spring causes the clutch member to always have an upward tendency to connect with the transmission wheel and rotate synchronously, and the clutch member can compress the spring downward and separate from the transmission wheel.

[0012] Preferably, the clamping member includes an upper sleeve and a lower clamping portion. The sleeve is a cylindrical structure with an opening at the top, and the clutch and spring are housed inside it. The bracket includes an upper frame and a cylindrical surface below the frame. The lower end of the cylindrical surface is open. The sleeve is located inside the cylindrical surface. The clamping portion is exposed outside the bracket. The frame houses the pulley and the drive wheel.

[0013] Preferably, the sleeve has a slot extending along its axial direction, and the clutch (4) has a connecting shaft protruding radially outward on its circumferential surface. The connecting shaft is located in the slot and its end protrudes out of the slot. The clutch can move up and down along the sleeve and then connect upward with the transmission wheel and rotate synchronously.

[0014] Preferably, a connecting structure is provided between the cylindrical surface and the sleeve. The connecting structure allows the sleeve to be located inside the cylindrical surface and to rotate around a vertical axis within the cylindrical surface. A guide surface is provided on the inner surface of the cylindrical surface. The guide surface cooperates with the connecting shaft, allowing the connecting shaft to move simultaneously along the guide surface and the slot. This enables the clutch to rotate horizontally at a preset angle at a higher position where it engages with the transmission wheel, and then disengage downwards from the transmission wheel after rotating past the preset angle.

[0015] Preferably, the guide surface includes a horizontal surface extending horizontally along the circumference of the cylindrical surface, and two inclined surfaces located at both ends of the horizontal surface that slope downward toward the lower end opening of the cylindrical surface.

[0016] Preferably, the clutch is a cylindrical structure with an opening at the top. The lower part of the transmission wheel is inserted into the cylindrical structure. A plurality of first protrusions are spaced apart along the circumference on the lower outer surface of the transmission wheel. The inner surface of the clutch is provided with second protrusions that match the first protrusions and are also spaced apart along the same circumference. The second protrusions can be engaged with the clutch upward into the gap between the first protrusions, thereby making the clutch rotate synchronously with the transmission wheel.

[0017] Preferably, the bottom ends of the first protrusion are inclined surfaces sloping downwards towards the center on both sides, and the top end of the second protrusion is an arc-shaped surface.

[0018] Preferably, the sleeve has a central shaft at its center, which is inserted upward through the clutch and the drive wheel.

[0019] Preferably, the connecting strip is a rigid component with a groove along its length, the top of the sliding mechanism has a protruding shaft and a flange face located on the top of the protruding shaft, the protruding shaft is inserted into the groove, and each connecting strip connects two adjacent sliding mechanisms in sequence.

[0020] Preferably, one end of the connecting strip is curved upward relative to the other end, and the curved ends of the multiple connecting strips arranged in sequence are all located above the other ends of the adjacent connecting strips.

[0021] Preferably, the drive belt is also provided with a groove for the sliding mechanism to be inserted and slid.

[0022] Preferably, the top perimeter of the sliding mechanism has upwardly positioned limiting posts.

[0023] By means of the above technical solution, the technical solution provided by the embodiments of the present invention has at least the following advantages: the electric curtain track only needs to execute the movement of the belt to control the automatic engagement and disengagement of the clutch mechanism, thereby driving the rotation of the curtain slats to achieve the conversion between light blocking and light transmission, and can also realize the opening and closing of the curtain at the same time. The whole process is automatically controlled without manual operation. Moreover, the structure is compact and simple. Controlling the rotation of the curtain slats and the opening and closing of the curtain only requires one motor control, without the need for manual or two sets of system control, making it easy to use.

[0024] The above description is merely an overview of the technical solutions of the embodiments of the present invention. In order to better understand the technical means of the embodiments of the present invention and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of the present invention more obvious and understandable, specific implementation methods of the embodiments of the present invention are described below. Attached Figure Description

[0025] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0026] Figure 1a A schematic diagram of an electric curtain track provided in an embodiment of the present invention is shown. Figure 1b for Figure 1a The schematic diagram of the motorized curtain track is omitted, as the outer casing is not shown.

[0027] Figure 2 A schematic diagram of a sliding mechanism for an electric curtain track provided in an embodiment of the present invention is shown;

[0028] Figure 3 For along Figure 2 Sectional view of line AA in the middle;

[0029] Figure 4 for Figure 3 Exploded view of the components;

[0030] Figure 5 A schematic diagram illustrating the engagement of the clutch and transmission wheel in a sliding mechanism provided in an embodiment of the present invention;

[0031] Figure 6 An exploded view of the sliding mechanism component provided in an embodiment of the present invention. Detailed Implementation

[0032] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0033] Figure 1 shows a schematic diagram of an electric curtain track according to an embodiment of the present invention, including a housing 30 and a ring-shaped belt 20 disposed within the housing 30. Gears (not shown in the figure) are respectively provided at both ends of the housing 30. The belt 20 is wound around the gears at both ends, forming two belts that extend along the length of the track and are spaced apart along the width of the track. The output shaft of the drive mechanism drives the belt 20 to rotate around the gears at both ends in a ring via the gear at one end, thus enabling the belt 20 to move horizontally in a ring. Furthermore, the surface of the belt 20 is provided with teeth for meshing with gears on the sliding mechanism.

[0034] The bottom of the outer casing 30 is provided with an elongated opening extending along its length. The outer casing 30 is also provided with a sliding mechanism 40. One side of the sliding mechanism 40 is connected to the belt 20 and can move along or with the belt 20. The bottom of the sliding mechanism 40 is exposed outside the opening 300 of the outer casing 30, and the sliding mechanism 40 rests on the outer casing on both sides of the opening to prevent it from falling out.

[0035] The sliding mechanism 40 includes at least one set disposed within the housing 30. Each set of sliding mechanisms 40 includes multiple sliding mechanisms arranged sequentially along the belt 20, and the sliding mechanisms 40 in the same set are connected to the belt 20 on the same side. The sliding mechanisms 40 in the same set are connected to each other by a connecting belt 7. One of the sliding mechanisms 40 at each end of each set is connected to the drive belt 8. The drive belt 8 is connected to the belt 20 and moves horizontally along the track as the belt 20 moves horizontally. The horizontal movement of the drive belt 8 drives the sliding mechanism 40 and the connecting belt 7 to move horizontally along the track. Preferably, the connection between the sliding mechanism 40 and the connecting belt 7 is movable, and the connection between the drive belt 8 and the sliding mechanism 40 at the end is also movable. That is, the sliding mechanism 40 can move relative to the drive belt 8. Thus, when the drive belt moves, the sliding mechanism 40 remains stationary in the initial stage of the movement of the drive belt 8 and the belt 20, so that the clutch structure inside can engage to drive the curtain slats to rotate, and then separate. Furthermore, in the initial stages of opening and closing the curtains, the sliding mechanism 40 can maintain its position while the movement of the belt 20 drives the clutch structure in the sliding mechanism to engage and rotate the curtain slats by 90 degrees. Then the clutch structure disengages, and the sliding mechanism 40 moves along the length of the track along with the drive belt 8 and the belt 20.

[0036] Each sliding mechanism 40, relative to the track, moves from the starting end to the ending end of the track during the process of the curtain slats opening and closing. If there is only one sliding mechanism, one end of the track is the starting end and the other end is the ending end; if there are two or more sliding mechanisms, one end of the track is the starting end and the other end is the ending end. The starting and ending ends of multiple sliding mechanisms can be the same or opposite. Figure 1b As shown, this is a set of sliding mechanisms 40. In this case, the right side of the track in the diagram is the starting end, and the left side is the ending end. From the starting end to the ending end, as shown... Figure 1b The arrow indicates the closing direction of the curtain slats.

[0037] like Figure 1b As shown, a connecting band 7 is provided between every two adjacent sliding mechanisms 40, so the number of connecting bands 7 is one less than the number of sliding mechanisms 40. Each connecting band 7 is a relatively rigid component with a groove 71 extending along its length, the groove 71 having a first end 711 and a second end 712. A vertical protrusion 15 is provided at the top of the sliding mechanism 40 and is inserted into the groove 71 of its corresponding connecting band 7. The top of the protrusion 15 has a flange surface 16 that restricts the sliding mechanism 40 within the groove 71, allowing the sliding mechanism 40 to move along the groove 71 of the connecting band 7. Except for the two outermost sliding mechanisms, each sliding mechanism has two connecting bands 7 connected to its protrusion 15. In this way, multiple sliding mechanisms 40 are connected sequentially via the connecting bands 7. Each connecting band 7 is arranged sequentially with the first end near the starting end and the second end near the ending end. In the two connecting bands connected to the same sliding mechanism, the first end is located above the second end. Preferably, the end near the first end 711 is curved upwards to facilitate the insertion of the second end 712 of the connecting belt 7 below it. The outermost sliding mechanism is connected to a drive belt 8, which has a similar structure to the connecting belt 7, also having a long groove for the insertion of the protruding shaft 15 of the sliding mechanism 40. One end of the drive belt 8 is connected to the belt 20 and can move with the belt 20. This drive belt 8 is used to drive the sliding mechanism and the connecting belt 7 to move with the belt 20. After the sliding mechanisms are connected sequentially via the connecting belts, the drive belt 8 can be connected to the outermost sliding mechanism on either side. Preferably, the drive belt 8 is located in front of the curtain in the direction of movement from opening to closing; that is, the drive belt moves forward to close the curtain and retracts to open it.

[0038] like Figure 3 As shown, the top periphery of the sliding mechanism 40, that is, the top periphery of the support 1 of the sliding mechanism 40, is also provided with upward protruding limiting posts 17. The limiting posts 17 are used to restrict the connecting belt 7 between the limiting posts 17, so as to prevent the connecting belt from coming off or shifting left and right during the mutual movement of the sliding mechanism 40 and the connecting belt 7.

[0039] For example, such as Figure 1b There are five sliding mechanisms, designated 401, 402, 403, 404, and 405, and four connecting straps 7, designated 701, 702, 703, and 704. Each connecting strap connects two adjacent sliding mechanisms. Each sliding mechanism, except for 401 closest to the starting end and 405 closest to the ending end, is connected by two connecting straps: 701 connects 401 and 402, 702 connects 402 and 403, 703 connects 403 and 404, and 704 connects 404 and 405. Furthermore, the end of all connecting straps 701 closest to the starting end is the first end, located above the second end of its adjacent connecting strap 7. Figure 1b As shown, the right side is the starting end of the track, and the arrow indicates the closing direction of the curtain slats. Figure 1b With the curtains open, all sliding mechanisms are positioned on the right side of the track, i.e., the starting end. At this time, the sliding mechanism 40 furthest from the starting end of the track is connected to the drive strap 8. When the curtains are open, the connecting straps 7 can overlap each other, with the connecting strap 701 closest to the starting end at the bottom, i.e., overlapping from bottom to top in the order of 701-705.

[0040] The connecting belt 7 is used to limit the maximum distance between the sliding mechanisms 40 and to drive the sliding mechanisms 40 to move horizontally along the belt 20. Of course, those skilled in the art can adjust the length of each connecting belt 7 and the number of sliding mechanisms 40 according to the needs of the track length. Alternatively, there can be two sets of sliding mechanisms, each set connected to a different side of the belt 20. Thus, when the belt 20 moves horizontally in a ring, the two sets of sliding mechanisms always move in opposite directions, thereby enabling the two sets of sliding mechanisms to achieve the function of closing or opening the curtain by moving the curtain slats in opposite directions.

[0041] Each sliding mechanism, such as Figure 2-4As shown, the system includes a bracket 1, within which a pulley 2 is installed, its axial direction being vertically aligned. A transmission mechanism is also provided within the bracket 1. The pulley 2 is located at the top of the bracket 1, with one side protruding from the bracket 1 and engaging with a belt 20. A clamping member 3 is exposed at the bottom of the bracket 1. The pulley 2 is connected to the clamping member 3 via the transmission mechanism and can drive the clamping member 3 to rotate. The transmission mechanism also includes a clutch structure. When the clutch structure is engaged, the pulley 2 and the clamping member 3 can rotate synchronously, thus the rotation of the pulley 2 can drive the clamping member 3 to rotate synchronously. When the clutch structure is disengaged, the pulley 2 and the clamping member 3 are separated in the direction of rotation, and the movement of the pulley 2 will not drive the movement of the clamping member 3. The transmission mechanism also includes a transmission wheel 5, also located within the bracket 1 and vertically aligned with the axial direction of the pulley 2, and a clutch member 4 located below the transmission wheel 5. The transmission wheel 5 engages with the pulley 2 and rotates synchronously. The clutch 4 is connected to the clamping member 3 and can rotate synchronously. A spring 6 is located between the clutch 4 and the clamping member 3. This spring 6 drives the clutch 4 to move up and down relative to the clamping member 3. When it moves upward, the clutch 4 engages with the transmission wheel 5 and rotates synchronously. When the clutch 4 moves downward, it disengages from the transmission wheel 5, and the rotation of the transmission wheel 5 is not transmitted to the clutch 4. The spring 6 gives the clutch 4 a tendency to engage with the transmission wheel 5 and rotate synchronously. Preferably, the pulley 2 includes upper and lower parts, both of which have teeth. The upper teeth protrude from the bracket 1 and engage with the belt 20, while the lower teeth engage with the transmission wheel 5. The upper and lower teeth are coaxially arranged, and the period and radius of the teeth can be the same or different.

[0042] Preferred, such as Figure 6As shown, the clamping member 3 includes an upper sleeve 31 and a lower clamping part 32. The sleeve 31 is a cylindrical structure with an opening at the top, which houses the clutch 4 and the spring 6. The clamping part 32 protrudes from the track and connects to the curtain slats. The upper part of the bracket 1 is a frame 11 that houses the pulley 2 and the drive wheel 5. The lower part of the frame 11 is a cylindrical surface 12 with an opening at its lower end. This cylindrical surface 12 houses the sleeve 31 of the clamping member 3, the clutch 4, and the spring 6. Preferably, the cylindrical surface 12 is integrally formed with the frame 11. The sleeve 31 of the clamping member 3 has a slot 33 extending along its axial direction. The clutch 4 has a connecting shaft 41 protruding radially outward on its circumferential surface. The connecting shaft 41 is inserted into the slot 33 and its end protrudes out of the slot 33, and can move up and down with the slot 33. Thus, the clutch 4 can drive the clamping member 3 to rotate in the same direction while also moving up and down along the slot 33. A spring 6 is provided between the bottom of the clutch 4 and the sleeve 31. The spring 6 makes the clutch 4 tend to always move upward away from the sleeve 31. Preferably, there are two slots 33 symmetrically provided on the sleeve 31, and there are also two corresponding symmetrical connecting shafts 41 on the circumferential surface of the clutch 4. Preferably, there can be three or more slots and connecting shafts. Preferably, the slots and connecting shafts are evenly distributed circumferentially.

[0043] like Figure 5 , 6 As shown, the sleeve 31 and the clutch 4 are located within the cylindrical surface 12. A connecting structure is provided between the cylindrical surface 12 and the sleeve 31, allowing the sleeve 31 to be located within the cylindrical surface 12 and not move axially relative to the cylindrical surface 31, and to rotate about the vertical axis within the cylindrical surface 12. Preferably, the connecting structure is an annular groove 311 along its circumference on the outer surface of the sleeve 31, and a locking block 121 protruding radially inward on the inner surface of the cylindrical surface 12. The locking block 121 is engaged within the annular groove 311, thereby preventing the clamping member 3 from dislodging from the cylindrical surface 12 and ensuring that the sleeve 31 of the clamping member 3 can rotate about the axis within the cylindrical surface 12.

[0044] Preferably, the connection structure can also be other structures, for example, the positions of the locking block 121 and the annular groove 311 can be interchanged.

[0045] Furthermore, a guide surface 122 is provided on the inner surface of the cylindrical surface 12. The guide surface 122 cooperates with the connecting shaft 41, allowing the connecting shaft 41 to move simultaneously along the guide surface 122 and the slot 33. This enables the clutch to rotate horizontally by a preset angle at a higher position engaged with the transmission wheel, and then disengage downwards from the transmission wheel after rotating past the preset angle. The guide surface 122 includes a horizontal surface 1221 extending horizontally along the circumference of the cylindrical surface 12, and two inclined surfaces 1222 connected to the horizontal surface 1221 and located at both ends of the horizontal surface 1221, inclined towards the open end of the cylindrical surface 12. When the connecting shaft 41 rotates within the cylindrical surface 12 with the sleeve 31, the clutch 4 is in an engaged state when moving along the horizontal surface 1221, and the clutch 4 is engaged with the transmission wheel 5. When the connecting shaft 41 moves to the end of the horizontal plane 1221 and begins to move along the inclined plane 1222, the clutch is driven by the inclined plane 1222 towards the bottom of the sleeve 31. At this time, the clutch 4 compresses the spring 6 at its bottom, and the clutch 4 disengages from the transmission wheel 5. The same applies in the other direction. Therefore, the length of the horizontal plane 1221 should be reasonably set to achieve the preset angle of rotation of the clutch 4 and the clamping member 3 with the pulley 2 and the transmission wheel 5 when the clutch structure is engaged. Preferably, the preset angle that the clamping member 3 can rotate with the pulley 2 when engaged is 90 degrees. In this way, the curtain slats connected to the clamping member 3 can automatically rotate 90 degrees around its vertical direction, or rotate 90 degrees back, to realize the conversion between light transmission and light blocking of the curtain slats. Furthermore, this structure enables the pulley 2 to drive the clamping member 3 to rotate synchronously by a preset angle when the clutch structure is engaged. Then, the clutch structure separates the two. After the pulley 2 rotates in the opposite direction, the clutch structure engages the pulley 2 and the clamping member 3 again, and they continue to rotate synchronously in the opposite direction by a preset angle. Then, the clutch structure separates the two from each other.

[0046] like Figure 5The diagram shows the clutch 4, transmission 5, and spring 6. The upper part of the transmission 5 has a toothed shape 51 that meshes with the pulley 2. The lower outer surface of the transmission wheel 5 is provided with a plurality of first protrusions 52 spaced apart along its circumference. Meanwhile, the clutch 4 is a cylindrical structure, and the lower part of the transmission wheel 5 is inserted into the cylindrical structure. The inner surface of the clutch 4 is provided with a plurality of second protrusions 42 that match the first protrusions 52 and are also spaced apart along its circumference. When the clutch 4 engages upward with the lower part of the transmission wheel 5, the first protrusions 52 and the second protrusions 42 engage with each other. That is, the second protrusions 42 are located between the gaps of the first protrusions 52 and their widths match. In other words, the second protrusions 42 are inserted into the gaps between the first protrusions 52, and the clutch 4 and the transmission wheel 5 rotate synchronously. Furthermore, when the clutch 4 compresses the spring 6 downwards, the second protrusion 42 separates axially from the first protrusion 52. The bottom of the first protrusion 52 has two inclined surfaces on either side, and the top of the second protrusion 42 has an arc-shaped surface. When separated, the arc-shaped surface and one of the inclined surfaces remain in contact and can slide against each other. Figure 5 As shown, in the separated state, the transmission wheel 5 rotates counterclockwise in the direction of the arrow in the figure. The inclined surface on one side of the bottom of the first protrusion 52 slides against the inclined surface of the top of the second protrusion 42, giving the clutch 4 a downward and counterclockwise force. This causes the clutch 4 to compress the spring 6 below it and be in a low position. At this time, the connecting shaft 41 on the clutch 4 should be located at the bottom of the inclined surface 1222 of the guide surface, and the rotation of the transmission wheel 5 will not cause the clutch 4 to rotate. When the transmission wheel 5 rotates clockwise, the inclined surface on the other side of the first protrusion 52 gives the clutch 4 an upward force. At this time, under the action of the spring 6, the connecting shaft 41 on the clutch 4 can move upward along the inclined surface, and then the clutch 4 and the transmission wheel 5 are engaged and connected, changing from the separated state back to the engaged state. As the transmission wheel 5 continues to rotate clockwise, when the connecting shaft 41 of the clutch 4 moves along the horizontal plane 1221 to the inclined plane at the other end, it will also move downwards along the inclined plane, thus disengaging the clutch 4 from the transmission wheel 5 and returning to the separated state. Therefore, by reasonably setting the length and inclination of the horizontal plane 1221 and the inclined plane, the rotation angle of the transmission wheel 5 and the clutch 4 in the engaged state can be controlled. Preferably, this rotation angle is 90 degrees, used to realize the rotation of the curtain slats along their vertical axis, and thus from an angle perpendicular to the window to an angle parallel to the window.

[0047] The sleeve 31 is further provided with a central shaft 34, which extends opposite to the clamping part 32 and is inserted through the clutch 4 and the transmission wheel 5, thereby axially connecting the transmission wheel 5, the clutch 4, and the clamping part 3. An opening is provided between the frame 11 and the cylindrical surface 12 for a portion of the transmission wheel 5 to extend into. The upper part of the transmission wheel 5 is located inside the frame 11, and the lower part is inserted into the cylindrical surface 12.

[0048] like Figure 1a , 1b As shown, the arrows indicate the direction of the curtain closing from right to left. The diagram shows the curtain opening state. At this time, the clutch structure of the sliding mechanism is in a disengaged state, that is, the clutch 4 is located at the bottom of the sleeve 31 and compresses the spring 6, and the curtain slats are perpendicular to the window. Taking the curtain opening state to closing state as an example, at this time, the belt 20 connected to the sliding mechanism moves in the direction of the arrow. Initially, the movement of the belt 20 drives the drive belt 8 to move in the same direction, but the drive belt 8 does not drive the sliding mechanism 40 to rotate synchronously. At this time, the movement of the belt 20 can drive the rotation of all the belt gears 2 in the sliding mechanism 40. The clutch 4 and the transmission wheel 5, which have been disengaged, re-engage. The horizontal movement of the belt 20 drives the belt gears 2, the transmission wheel 5, the clutch 4, and the clamping member 3 to rotate, so that the curtain slats rotate from a state perpendicular to the window to a state parallel to the window. After the clutch 4 and clamping member 3 rotate horizontally by 90 degrees, the connecting shaft 41 of the clutch 4 moves to the inclined surface at one end of the guide surface, and then the clutch 4 presses down the spring and disengages from the transmission wheel 5. At this time, the clutch structure is in a disengaged state. At this time, the horizontal movement of the belt 20 drives the rotation of the belt gear 2 but does not drive the movement of the clamping member 3 below. The belt gear 2 rotates freely relative to the clamping member 3. At this time, the belt 20 continues to move horizontally in the direction of the arrow. The leftmost sliding mechanism 405 is driven by the drive belt and moves with the horizontal movement of the belt 20. The curtain closes slowly from right to left. When the leftmost sliding mechanism 405 moves with the belt 20 to the second end of its right connecting belt 704, the sliding mechanism 405 begins to drive the connecting belt 704 to move horizontally with the belt 20. When the first end of the connecting belt 704 moves to the position of the sliding mechanism 404, it begins to drive the sliding mechanism 404 to the left, that is, to the end. And so on. With the drive of the connecting belt, the sliding mechanism 40 reaches the predetermined position of its track.

[0049] When the curtains need to be opened, belt 20 moves in the reverse direction, causing belt gear 2 to reverse as well. This engages the clutch mechanism within the sliding mechanism, rotating the slats from parallel to the window to perpendicular. The clutch then disengages, allowing belt 20 to move only enough to rotate belt gear 2 relative to clamping member 3. Subsequently, the reverse movement of belt 20 first moves the leftmost drive belt 8 to the right, then along its groove towards the sliding mechanism 405. At a certain position, the sliding mechanism 405 moves to the right, simultaneously moving along the groove of the connecting belt 704 on its right side from left to right, i.e., from the second end to the first end as belt 20 moves, until it reaches the first end of the connecting belt 704. This then simultaneously moves the connecting belt 704 to the left, and so on, until all connecting belts overlap on the rightmost side, and the sliding mechanism is also positioned on the rightmost side of the track, i.e., at the starting end. Figure 1b As shown.

[0050] This electric curtain track only requires the movement of the belt to control the automatic engagement and disengagement of the clutch mechanism, thereby driving the rotation of the curtain slats to achieve the conversion between light blocking and light transmission. It can also simultaneously open and close the curtains. The entire process is automatically controlled without manual operation. Moreover, the structure is compact and simple. Controlling the rotation of the curtain slats and the opening and closing of the curtains only requires one motor, eliminating the need for manual operation or two separate systems, making it easy to use.

[0051] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0052] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An electric curtain track, comprising a housing (30) and a ring-shaped belt (20) disposed within the housing (30), wherein gears are provided at both ends of the housing (30), the belt (20) is wound around the gears at both ends, and a drive mechanism drives the belt (20) to rotate in a ring around the gears at both ends via the gear at one end, characterized in that: The housing (30) is provided with at least one set of sliding mechanisms (40). Each set of the at least one set of sliding mechanisms (40) includes multiple sliding mechanisms (40) arranged sequentially along the belt (20). The multiple sliding mechanisms (40) are connected to the belt (20) on the same side and can rotate or move synchronously with the movement of the belt (20). The multiple sliding mechanisms (40) are connected to each other by a connecting belt (7). One of the two ends of the at least one set of sliding mechanisms (40) is connected to a drive belt (8). The drive belt (8) is fixedly connected to the belt (20) and moves horizontally with the belt (20). The drive belt (8) and the connecting belt (7) drive the sliding mechanism (40) to move horizontally along the belt (20). The drive belt (8) and the sliding mechanism (40) and the connecting belt (7) and the sliding mechanism (40) are all movably connected. The sliding mechanism (40) includes a bracket (1) and a pulley (2) that is axially vertically arranged inside the bracket (1). The bracket (1) is also provided with a transmission mechanism and a clamping member (3). The pulley (2) is connected to the clamping member (3) through the transmission mechanism. The transmission mechanism includes a clutch structure. When the drive belt (8) moves with the belt (20), it first drives the clutch structure in the sliding mechanism (40) to engage and then disengage. In the engaged state, the pulley (2) and the clamping member (3) rotate synchronously; in the disengaged state, the pulley (2) and the clamping member (3) separate from each other in the rotation direction. In the combined state, the pulley (2) and the clamping member (3) rotate synchronously at a preset angle and then separate from each other. In the separated state, the pulley (2) rotates in the opposite direction and re-engages with the clamping member (3), and then rotates at a preset angle and separates from each other again. The transmission mechanism includes a transmission wheel (5), the pulley (2) is connected to the transmission wheel (5) and can synchronously drive the transmission wheel (5) to rotate, the clutch structure includes a clutch element (4), the clutch element (4) is connected to the clamping element (3) and can rotate coaxially, a spring (6) is provided between the clutch element (4) and the clamping element (3), the spring (6) makes the clutch element (4) tend to always be connected to the transmission wheel (5) and rotate synchronously, the clutch element (4) can compress the spring (6) downward and separate from the transmission wheel (5); The clamping member (3) includes a sleeve (31) located above, which houses the clutch member (4) and the spring (6). The sleeve (31) is located inside the cylindrical surface (12). The sleeve (31) has a slot (33) extending along its axial direction. The clutch member (4) has a connecting shaft (41) protruding radially outward on its circumferential surface. The connecting shaft (41) is located inside the slot (33) and its end protrudes from the slot (33). The clutch member (4) can move up and down along the sleeve (31) and then connect upward with the transmission wheel (5) and rotate synchronously. The sleeve (31) rotates around the vertical axis in the cylindrical surface (12). The inner surface of the cylindrical surface (12) is provided with a guide surface. The guide surface cooperates with the connecting shaft (41), so that the connecting shaft (41) can move along the guide surface and the slot (33) at the same time, thereby realizing that the clutch (4) rotates horizontally at a preset angle at a higher position engaged with the transmission wheel (5), and after rotating through the preset angle, it disengages downward from the transmission wheel (5). The guide surface includes a horizontal surface (1221) extending horizontally along the circumference of the cylindrical surface (12), and two inclined surfaces (1222) located at both ends of the horizontal surface (1221) and opening downward toward the lower end of the cylindrical surface (12); The clutch (4) is a cylindrical structure with an opening at the top. The lower part of the transmission wheel (5) is inserted into the cylindrical structure. The lower outer surface of the transmission wheel (5) is provided with a plurality of first protrusions (52) spaced apart along its circumference. The inner surface of the clutch (4) is provided with second protrusions (42) that match the first protrusions (52) and are also spaced apart along their circumference. The second protrusions (42) can be inserted into the gap between the first protrusions (52) as the clutch (4) moves upward, thereby making the clutch (4) and the transmission wheel (5) rotate synchronously.

2. The electric curtain track as described in claim 1, characterized in that: The bottom of the clamp (3) is exposed on the bracket (1) for connecting the curtain slats, and one side of the pulley (2) is exposed on the bracket (1) and engages with the belt (20), and can rotate relative to the belt (20) or move horizontally with the belt (20).

3. The electric curtain track as described in claim 1, characterized in that: The clamping member (3) includes a clamping part (32) located at the bottom, the sleeve (31) is a cylindrical structure with an opening at the top, the bracket (1) includes a frame (11) located at the top and a cylindrical surface (12) located below the frame, the lower end of the cylindrical surface (12) is open, the clamping part (32) is exposed in the bracket (1), and the pulley (2) and the drive wheel (5) are housed in the frame (11).

4. The electric curtain track as described in claim 1, characterized in that: A connecting structure is provided between the cylindrical surface (12) and the sleeve (31), the connecting structure enabling the sleeve (31) to be located within the cylindrical surface (12).

5. The electric curtain track as described in claim 1, characterized in that: The bottom sides of the first protrusion (52) are inclined surfaces that slope downward toward the center, and the top of the second protrusion (42) is an arc-shaped surface.

6. The motorized curtain track as described in claim 5, characterized in that: The sleeve (31) has a central shaft (34) at its center, which is inserted upward through the clutch (4) and the drive wheel (5).

7. The electric curtain track as described in claim 1, characterized in that: The connecting strip (7) is a rigid component and has a groove (71) along its length. The top of the sliding mechanism (40) has a protruding shaft (15) and a flange face (16) located on the top of the protruding shaft (15). The protruding shaft (15) is inserted into the groove (71). Each connecting strip connects two adjacent sliding mechanisms (40).

8. The motorized curtain track as described in claim 7, characterized in that: One end of the connecting strip (7) is raised relative to the other end, and the raised ends of the multiple connecting strips (7) arranged in sequence are all located above the other ends of the adjacent connecting strips (7).

9. The motorized curtain track as described in claim 8, characterized in that: The drive belt (8) is also provided with a groove for the sliding mechanism (40) to slide into.

10. The motorized curtain track as described in claim 7, characterized in that: The sliding mechanism (40) has upwardly positioned limiting posts (17) around its top perimeter.

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