Improved electric blinds

Abstract

Improved electric blinds, comprising a headrail (1), a one-way driving apparatus (2) being centrally arranged within the headrail (1), and an output shaft (2.1) of the one-way driving apparatus (2) being in a transmission connection with a transmission rod (4) by means of a transmission assembly (3). The transmission assembly (3) parallelly transmits power of the output shaft (2.1) to the transmission rod (4); the transmission rod (4) and the output shaft (2.1) are arranged in parallel and positioned on two sides of a center line of the headrail (1). Two symmetrically arranged cord winders (5) are provided on the transmission rod (4); and the cord winders (5) are connected with a blinds body (7) by means of pull cords (6). The improved electric blinds fully utilize mounting space, adapting to existing headrails (1) so as to seamlessly convert traditional manual blinds into electric blinds. Moreover, the length of the headrail (1) can be easily adjusted.

Description

An improved electric curtain Technical Field

[0001] The utility model relates to the technical field of electric curtains, in particular to an improved electric curtain. Background Art

[0002] Traditional manual Venetian blinds and honeycomb blinds include an upper track, which is equipped with a transmission rod and a rope winder. The transmission rod is driven by a structure such as a bead or a spring to rotate the rope winder to wind up and release the rope to drive the curtain body to open and close. With the development of intelligent curtains, traditional manual curtains are developing towards electric curtains. In order to reduce costs, the upper track is not re-molded and the existing upper track is used. A one-way output drive device can be installed at the end of the upper track to replace the manual drive device such as a bead or a spring, and a power supply device is installed at the other end. The replaced electric curtain is not convenient to cut the length of the upper track because the two ends of the upper track are respectively equipped with a one-way output drive device and a power supply device. However, it is difficult to meet the needs of some users who need to modify the size of the curtains. In order to avoid the above problems, a two-way output drive device is installed in the middle position of the upper track, which can simultaneously drive the rope winders on both sides, so that the two ends of the upper track can be conveniently cut. However, this structure is bulky, costly, and too long. In addition, the power supply part is difficult to be built in and needs to be hung outside the upper track. The overall structure is not beautiful. Therefore, how to match the small-sized drive device built into the middle position of the upper track while keeping the existing upper track structure unchanged, connect the manual curtains into electric curtains, and facilitate cutting and adjusting the length at both ends of the upper track is a problem that needs to be solved urgently.

[0003] Utility Model Content

[0004] In view of the current status of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide an improved electric curtain that can be applied to the existing upper track, seamlessly replaced with an electric structure, and conveniently cut the upper track to adjust the size.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: an improved electric curtain, including an upper track, a one-way drive device is provided in the middle of the upper track, the output shaft of the one-way drive device is connected to the transmission rod through a transmission assembly, and the transmission assembly transmits the power of the output shaft in parallel to the transmission rod. The transmission rod is arranged parallel to the output shaft and is located on both sides of the center line of the upper track. Two symmetrically arranged rope winders are provided on the transmission rod, and the rope winders are connected to the curtain body through a pull rope.

[0006] Furthermore, the transmission assembly includes a first gear and a second gear, the first gear is coaxially driven with the output shaft, the second gear is coaxially driven with the transmission rod, and the first gear and the second gear are parallel meshed for transmission.

[0007] Furthermore, the rope reel includes a rope reel seat, in which a winding core mounting position is provided on a side coaxial with the transmission rod and offset from the center line of the upper track, and a winding core for winding and releasing the pull rope is provided on the winding core mounting position.

[0008] Furthermore, the two ends of the winding core are respectively provided with a first rotating part and a second rotating part, and the two ends of the winding core installation position are respectively provided with a first supporting part and a second supporting part that cooperate with the first rotating part and the second rotating part. A rope hole for passing the pull rope is provided on the rope winding seat near the first supporting part and located at the center line of the upper track.

[0009] Furthermore, a reversing wheel is provided on the winding core near the first rotating part, and a rope ladder is connected to the reversing wheel.

[0010] Furthermore, the one-way drive device is provided with a motor core, a reducer, a control board and a power supply unit, and the motor core and the power supply unit are electrically connected to the control board.

[0011] Furthermore, the length of the transmission rod is smaller than the length of the upper track, and the distances from both ends of the transmission rod to the corresponding ends of the upper track are greater than zero.

[0012] Furthermore, an auxiliary installation portion is provided on one end of the one-way drive device relative to the output shaft.

[0013] Compared with the existing technology, the advantages of the present invention are: the present invention adopts a one-way drive device whose output shaft is arranged parallel to the transmission rod in the upper track, and is eccentrically arranged on both sides of the center line of the upper track, making full use of the installation space, and transmitting power in parallel through the transmission component, and transmitting the power of the one-way drive device in parallel to the transmission rod to realize the synchronous retraction and release of the rope winders on both sides. The one-way drive device is small in size and low in cost, and can match the existing upper track, so that traditional manual curtains can be seamlessly connected to electric curtains. In addition, the one-way drive device is installed in the middle of the upper track, does not occupy the cutting space at both ends of the upper track, and is convenient for people to adjust the length of the upper track. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a top view of the present invention;

[0018] Figure 3 is a schematic diagram of the structure of the utility model split upper track;

[0019] Figure 4 is an exploded schematic diagram of the one-way drive device of the present invention;

[0020] Figure 5 is an exploded schematic diagram of the rope reel of the present invention;

[0021] As shown in the figure, 1 upper track, 2 one-way drive device, 2.1 output shaft, 2.2 motor movement, 2.3 reducer, 2.4 control board, 2.5 power supply unit, 2.6 installation auxiliary unit, 3 transmission assembly, 3.1 first gear, 3.2 second gear, 4 transmission rod, 5 rope winder, 5.1 rope winder seat, 5.2 winding core installation position, 5.3 winding core, 5.4 first rotating part, 5.5 second rotating part, 5.6 first supporting part, 5.7 second supporting part, 5.8 rope running hole, 5.9 reversing wheel, 6 pull rope, 7 curtain body, 8 rope ladder. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with specific implementation methods.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0027] As shown in Figures 1-5, the present invention provides an improved electric curtain, including an upper track 1, a one-way drive device 2 is provided in the middle of the upper track 1, and the output shaft 2.1 of the one-way drive device 2 is connected to the transmission rod 4 through a transmission assembly 3. The transmission assembly 3 transmits the power of the output shaft 2.1 in parallel to the transmission rod 4. The transmission rod 4 is arranged parallel to the output shaft 2.1 and is located on both sides of the center line of the upper track 1. Two symmetrically arranged rope winders 5 are provided on the transmission rod 4, and the rope winders 5 are connected to the curtain body 7 through a pull rope 6. The center line of the upper track 1 refers to the center line along the length direction of the upper track 1. The curtain body 7 can be a venetian blind body, a honeycomb blind body, a pleated blind body, etc., which are connected up and down by pull ropes and are opened and closed by pulling up and down by the pull ropes. The present invention is preferably explained with a venetian blind body as an example, and the venetian blind body is composed of a plurality of louvers.

[0028] The utility model adopts a one-way drive device 2, the output shaft 2.1 of which is arranged parallel to the transmission rod 4 in the upper track 1, and is eccentrically arranged on both sides of the center line of the upper track 1, making full use of the installation space, and transmitting power in parallel through the transmission component 3, and transmitting the power of the one-way drive device 2 in parallel to the transmission rod 4 to realize the synchronous retraction and release of the rope 6 by the rope winders 5 on both sides. The one-way drive device 2 is small in size and low in cost, and can match the existing upper track 1, so that traditional manual curtains are seamlessly connected to electric curtains. In addition, the one-way drive device 2 is installed in the middle of the upper track 1, does not occupy the cutting space at both ends of the upper track 1, and is convenient for people to adjust the length of the upper track 1.

[0029] 2 and 4 , the transmission assembly 3 includes a first gear 3.1 and a second gear 3.2. The first gear 3.1 is coaxially transmitted with the output shaft 2.1, and the second gear 3.2 is coaxially transmitted with the transmission rod 4. The first gear 3.1 and the second gear 3.2 are parallelly meshed for transmission. The output shaft 2.1 of the one-way drive device 2 outputs power and drives the first gear 3.1 to rotate coaxially. The first gear 3.1 drives the second gear 3.2 to rotate, and the second gear 3.2 drives the transmission rod 4 to rotate coaxially. The power of the output shaft 2.1 is transmitted through the action of the first gear 3.1 and the second gear 3.2. The force is transmitted to the transmission rod 4 in parallel, so that the one-way drive device 2 can be installed in the middle of the upper track 1 to drive the transmission rod 4 to synchronously control the rope winders 5 on both sides, so that the one-way drive device 2 is not limited to being installed only at the end of the upper track 1, and can also realize the function of driving both ends of the bidirectional drive device, and the cost is lower and the size is small. While ensuring that the traditional manual Venetian blinds can be seamlessly connected and converted into electric Venetian blinds, the size of the two ends of the upper track 1 can also be adjusted. Because the one-way drive device 2 is installed in the middle of the upper track 1, the two ends of the upper track 1 can be left empty, which is convenient for cutting and flexible in use.

[0030] Among them, referring to Figures 2 and 5, the rope winder 5 includes a rope winder seat 5.1, and a core mounting position 5.2 is provided in the rope winder seat 5.1 on the coaxial side of the transmission rod 4 and offset from the center line of the upper track 1. A core 5.3 for winding and releasing the pull rope 6 is provided on the core mounting position 5.2. Since the one-way drive device 2 and the transmission rod 4 are both eccentrically installed, and in order to adapt to the coaxial transmission of the core 5.3 and the transmission rod 4, the core mounting position 5.2 in the rope winder 5 is eccentrically set to facilitate the transmission rod 4 to rotate the core 5.3.

[0031] Among them, referring to Figure 5, the two ends of the winding core 5.3 are respectively provided with a first rotating part 5.4 and a second rotating part 5.5, and the two ends of the winding core mounting position 5.2 are respectively provided with a first supporting part 5.6 and a second supporting part 5.7 cooperating with the first rotating part 5.4 and the second rotating part 5.5. The rope winding device seat 5.1 is provided with a rope running hole 5.8 for passing the pull rope 6 near the first supporting part 5.6 and located at the center line of the upper track 1. In order to save installation space and facilitate the installation of the one-way drive device 2 in the middle of the upper track 1, the positions of the transmission rod 4 and the winding core 5.3 are eccentrically set, and the venetian blind body below the upper track 1 is still normally set directly below the upper track 1. Therefore, the rope running hole 5.8 remains centered to ensure that the venetian blind body can be stably opened and closed up and down under the action of the pull rope 6.

[0032] 5 , in order to adapt the Venetian blinds to dimming, a reversing wheel 5.9 is provided on the winding core 5.3 near the first rotating portion 5.4. The reversing wheel 5.9 is connected to a rope ladder 8, which is connected to each slat. The reversing wheel 5.9 can play a role in reversing and dimming.

[0033] 4 , the one-way drive device 2 is provided with a motor movement 2.2, a reducer 2.3, a control board 2.4 and a power supply unit 2.5. The motor movement 2.2 and the power supply unit 2.5 are electrically connected to the control board 2.4. Since the one-way drive device 2 is eccentrically arranged, there is more installation space, and the power supply unit 2.5 can be built-in, making the overall structure neater and more beautiful, and avoiding the power supply unit 2.5 being exposed outside the upper track 1.

[0034] Among them, referring to Figure 2, the length of the transmission rod 4 is less than the length of the upper rail 1, and the distances from the two ends of the transmission rod 4 to the corresponding ends of the upper rail 1 are greater than zero. This structural setting facilitates cutting space at both ends of the upper rail 1, and the transmission rod 4 will not be cut during cutting, which can not only ensure the normal transmission of the transmission rod 4, but also facilitate the cutting and adjustment of the size of the upper rail 1.

[0035] Among them, referring to Figures 2, 3, and 4, the one-way drive device 2 is provided with an installation auxiliary portion 2.6 on one end relative to the output shaft 2.1. Since the one-way drive device 2 is eccentrically installed in the upper track 1, one side of the one-way drive device 2 is in contact with the inner wall of one side of the upper track 1, and the distance from the other side to the other inner wall of the upper track 1 is greater than zero. In order to prevent the one-way drive device 2 from radially moving, radial limiters are respectively provided at both ends of the one-way drive device 2. One end is filled and limited by the outer shell of the transmission assembly 3, and the other end is filled and limited by providing the installation auxiliary portion 2.6, so that the one-way drive device 2 can be stably installed in the upper track 1.

[0036] When in use, the one-way drive device 2 works and outputs power through the output shaft 2.1. The output shaft 2.1 transmits the first gear 3.1, the second gear 3.2, the transmission rod 4, and the rope winder 5 to wind up and release the pull rope 6, thereby controlling the opening and closing of the blinds. The output shaft 2.1 of the one-way drive device 2 is arranged in parallel with the transmission rod 4 in the upper track 1, and is eccentrically arranged on both sides of the center line of the upper track 1, making full use of the installation space, and transmitting power in parallel through the transmission assembly 3, so that the power of the one-way drive device 2 is transmitted in parallel to the transmission rod 4 to realize the synchronous retraction and release of the rope winders 5 on both sides, so that the traditional manual curtains are seamlessly connected to electric curtains. The one-way drive device 2 is installed in the middle of the upper track 1, and the two ends of the transmission rod 4 do not hit the two ends of the upper track 1, so that there is cutting space at both ends of the upper track 1, which is convenient for size adjustment. In addition, the eccentric setting of the one-way drive device 2 can provide more installation space, and the power supply unit 2.5 can be built-in, making the overall structure more beautiful and neat.

[0037] Unless otherwise specified, the materials, reagents and experimental equipment involved in the embodiments of the present invention are all commercially available products in the field of electric curtains.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An improved electric curtain, characterized in that, It includes an upper track, in the middle of which a one-way drive device is provided. The output shaft of the one-way drive device is connected to a transmission rod through a transmission assembly. The transmission assembly transmits the power of the output shaft in parallel to the transmission rod. The transmission rod is arranged parallel to the output shaft and is located on both sides of the center line of the upper track. Two symmetrically arranged rope winders are provided on the transmission rod, and the rope winders are connected to the curtain body through a pull rope.

2. The improved electric curtain according to claim 1, wherein, The transmission assembly includes a first gear and a second gear. The first gear is coaxially driven with the output shaft, the second gear is coaxially driven with the transmission rod, and the first gear and the second gear are parallel meshed for transmission.

3. An improved electric curtain according to claim 1, characterized in that, The rope reel includes a rope reel seat, in which a winding core installation position is provided on a side coaxial with the transmission rod and offset from the center line of the upper track. The winding core installation position is provided with a winding core for winding and releasing the pull rope.

4. An improved electric curtain according to claim 3, characterized in that, The two ends of the winding core are respectively provided with a first rotating part and a second rotating part, and the two ends of the winding core installation position are respectively provided with a first supporting part and a second supporting part that cooperate with the first rotating part and the second rotating part. A rope hole for passing the pull rope is provided on the rope winding device seat near the first supporting part and located at the center line of the upper track.

5. An improved electric curtain according to claim 4, wherein, A reversing wheel is provided on the winding core near the first rotating part, and a rope ladder is connected to the reversing wheel.

6. An improved electric curtain according to claim 1, wherein, The one-way driving device is provided with a motor core, a reducer, a control board and a power supply unit, and the motor core and the power supply unit are electrically connected to the control board.

7. An improved electric curtain according to claim 1, characterized in that, The length of the transmission rod is less than the length of the upper track, and the distances from both ends of the transmission rod to the corresponding ends of the upper track are greater than zero.

8. An improved electric curtain according to claim 1, wherein, An installation auxiliary portion is provided on one end of the one-way drive device relative to the output shaft.

Images