Patent Publication Number: US-2023157474-A1

Title: Intelligent motorized curtain mechanism

Description:
FILED OF INVENTION 
     The present invention relates to the field of motorized curtains, and particularly relates to an intelligent motorized curtain mechanism. 
     DESCRIPTION OF THE PRIOR ART 
     Motorized curtain enables wireless control of curtains with motor drive, and comes in built-in type and external type. Based on the different operating mechanism and decorative effect, motorized curtains are classified into motorized opening and closing curtain series, motorized lifting curtain series, motorized canopy, motorized sunshade, motorized awning, etc., specifically, such as blinds, roller blinds, roman blinds, soft sheer curtains, cellular shades, honeycomb curtains, etc. 
     The existing intelligent curtain mechanisms require specific curtain rails and the professional staff for the installation, which come with high materials and transportation costs and hampers the marketing efforts in other countries; on the other hand, it is necessary to modify the existing wire layout and remove the old curtain rails for installing the intelligent curtain mechanism available on the market, which entails heavy workload and wastes a lot of materials and thus makes these existing intelligent curtain mechanisms unsalable. 
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     The present invention provides a motorized curtain mechanism to bring down the cost and make it easier to install such curtains. 
     The object of present invention is achieved with the following arrangements: 
     An intelligent motorized curtain mechanism, wherein a first mounting box, a second mounting box, a bead chain length adjustment mechanism and a bead chain are provided, the first mounting box and the second mounting box are both provided with a retaining mechanism mounted on the back, the first mounting box is provided with a power control mechanism and a master drive mechanism fixedly mounted inside, the second mounting box is provided with a slave mechanism fixedly mounted inside, the master drive mechanism is arranged on the left side of the bead chain, and the slave mechanism is arranged on the right side of the bead chain, and the bead chain length adjustment mechanism is snap-fitted to the surface of the bead chain. 
     The power control mechanism drives the master drive mechanism, which forms a synchronous belt connecting with the bead chain through the slave mechanism and enables the master drive mechanism to move the curtain installed on the bead chain, and the retaining mechanism easily clamps the first mounting box on the original curtain rail, and the power control mechanism is powered by a lithium battery, requiring no modification of the existing electrical wire layout, thus it is simply structured, lightweight and easy to be installed, besides, the first mounting box, as the driving part, can be installed either at the end of the curtain rail, or at its middle. 
     Further, the power control mechanism is preferably provided with a lithium battery, a drive motor and a controller module, the lithium battery, drive motor and controller module are fixedly mounted inside the first mounting box, the drive motor is provided with a clutch on the top, the master drive mechanism is connected to the top of the clutch, and the controller module is provided with a Bluetooth module fixedly mounted on the surface of the controller module. 
     The lithium battery is provided for power supply, the drive motor with spacer drives the clutch, which then drives the master drive mechanism to rotate, and the Bluetooth module is arranged to receive the control signal from the mobile phone APP. 
     Further, the master drive mechanism is preferably provided with a drive wheel and a first bead chain guide slot, the drive wheel rotates inside the first mounting box by means of a rotating shaft, the first bead chain guide slot is arranged on the right side of the first mounting box, the bead chain is snap-fitted onto the drive wheel and moves within the first bead chain guide slot, and the drive wheel is provided with the synchronizing tooth slots evenly spaced on the wheel body. 
     The first bead chain guide slot is arranged to limit the range of motion of the bead chain, the drive wheel driven by the power control mechanism rotates to drive the bead chain, and the synchronous tooth slots arranged on the body of the drive wheel is connected to the chain pitch on the bead chain for maintaining the stable rotation of the bead chain. 
     Further, the slave mechanism is preferably provided with a driven wheel and a second bead chain guide slot, the driven wheel rotates inside the first mounting box by means of a rotating shaft, the second bead chain guide slot is arranged on the left side of the second mounting box, the bead chain is snap-fitted onto the driven wheel and moves within the second bead chain guide slot. 
     The second bead chain guide slot is arranged for the driven wheel to drive the bead chain. 
     Further, the retaining mechanism is preferably provided with a C-plate and an adjusting screw, the C-plate is mounted on the back of the first mounting box and the second mounting box, the adjusting screw is threaded to the bottom of the C-plate, and the adjusting screw is provided with a retaining block fixedly connected to its top. 
     With the arrangements mentioned above, it is possible to change the relative position between the retaining block and the top of the C-plate by turning the adjusting screw, so that the device can be easily installed on or removed from the original curtain rail. 
     Further, the bead chain length adjustment mechanism is preferably provided with a movable chain clip, the movable chain clip is provided with an insertion hole penetrating its interior for the bead chain to move through, the movable chain clip is provided with a button movably mounted inside, the button is provided with a spring fixedly mounted at its bottom. 
     The button, when not being pressed, limits the movement of bead chain with its projection, and frees the bead chain when being pressed down, and automatically springs back under the action of the spring when being released, so that the length of the bead chain in use can be easily adjusted. 
     Further, the bead chain is preferably provided with a retaining clip fixedly mounted on the surface of the bead chain. 
     With the arrangements mentioned above, it is easy to retain the curtain with retaining clip. 
     In summary, the present invention provides the following benefits: 
     First, the power control mechanism drives the master drive mechanism, which forms a synchronous belt connecting with the bead chain through the slave mechanism and enables the master drive mechanism to move the curtain installed on the bead chain, and the retaining mechanism easily clamps the first mounting box on the original curtain rail, and the power control mechanism is powered by a lithium battery, requiring no modification of the existing electrical wire layout, thus it is simply structured, lightweight and easy to be installed, besides, the first mounting box, as the driving part, can be installed either at the end of the curtain rail, or at its middle. 
     Second, the lithium battery is provided for power supply, the drive motor with spacer drives the clutch, which then drives the master drive mechanism to rotate, and the Bluetooth module is arranged to receive the control signal from the mobile phone APP. 
     Third, it is possible to change the relative position between the retaining block and the top of the C-plate by turning the adjusting screw, so that the device can be easily installed on or removed from the original curtain rail. 
    
    
     
       DESCRIPTION OF THE DRAWINGS 
         FIG.  1    is a structural representation according to a preferred embodiment of the present invention; 
         FIG.  2    is a cross-sectional view of the first mounting box according to a preferred embodiment of the present invention; 
         FIG.  3    is a cross-sectional view of the second mounting box according to a preferred embodiment of the present invention; 
         FIG.  4    is a structural representation of the bead chain length adjustment mechanism according to a preferred embodiment of the present invention; 
         FIG.  5    is a structural representation of the retaining mechanism according to a preferred embodiment of the present invention; 
         FIG.  6    is a structural representation of the drive wheel according to a preferred embodiment of the present invention; 
         FIG.  7    is a schematic diagram of the circuit module according to a preferred embodiment of the present invention; 
         FIG.  8    is a structural representation of the second embodiment of the present invention; 
         FIG.  9    is a structural representation of the bead chain length adjustment mechanism according to the second embodiment of the present invention; 
         FIG.  10    is a structural representation of the retaining mechanism according to the third embodiment of the present invention; 
         FIG.  11    is a structural representation of the retaining mechanism according to the fourth embodiment of the present invention; 
     
    
    
     Index of Elements:  1 , the First Mounting Box;  2 , the Second Mounting Box;  3 , Bead Chain Length Adjustment Mechanism;  301 , Movable Chain Clip;  302 , Insertion Hole;  303 , Button;  304 , Spring;  4 , Bead chain;  5 , Retaining Mechanism;  501 , C-plate;  502 , Adjusting Screw;  503 , Retaining Block;  504 , L-plate;  505 , Driven Wheel Housing;  506 , Fixing Piece;  507 , Rubber Head Screw;  6 , Power Control Mechanism;  601 , Lithium Battery;  602 , Drive Motor;  603 , Controller Module;  604 , Clutch;  605 , Bluetooth Module;  7 , Master drive mechanism;  701 , Drive wheel;  702 , First Bead Chain Guide Slot;  703 , Synchronizing Tooth Slot;  8 , Slave Mechanism;  801 , Driven Wheel;  802 , The Second Bead Chain Guide Slot;  9 , Retaining Clip; 
     SPECIFIC EMBODIMENTS 
     The following text, together with the drawing sheet, present a clear and complete description of the embodiments of the present invention, obviously, the described embodiments are only a part of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative work fall within the scope of protection of the present invention. 
     Embodiment 1 
     Referring to  FIG.  1 - 7   , An intelligent motorized curtain mechanism, wherein a first mounting box  1 , a second mounting box  2 , a bead chain length adjustment mechanism  3  and a bead chain  4  are provided; the first mounting box  1  and the second mounting box  2  are both provided with a retaining mechanism  5  mounted on the back, the first mounting box  1  is provided with a power control mechanism  6  and a master drive mechanism  7  fixedly installed inside, the second mounting box  2  is provided with a slave mechanism  8  fixedly mounted inside, the master drive mechanism  7  is arranged on the left side of the bead chain  4 , the slave mechanism  8  is arranged on the right side of the bead chain  4 , and the bead chain length adjustment mechanism  3  is snap-fitted to the surface of the bead chain  4 . 
     Referring to the  FIG.  2   , the power control mechanism  1  of this embodiment comprises a lithium battery  601 , a drive motor  602  and a controller module  603 , the lithium battery  601 , the drive motor  602  and the controller module  603  are fixedly mounted inside the first mounting box  1 , the drive motor  602  is provided with a clutch  604  on the top, a master drive mechanism  7  is connected to the top of the clutch  604 , and the controller module  603  is provided with a Bluetooth module  605  fixedly mounted on the surface; a lithium battery  601  is provided for power supply, the drive motor  602  with spacer drives the clutch  604 , which then drives the master drive mechanism  7  to rotate, the lithium battery  601  can be charged with an external solar panel, which is a safe and environmentally friendly way to power it up, and the Bluetooth module  605  is arranged to receive the control signal from the mobile phone APP. 
     Referring to  FIG.  2    and  FIG.  6   , the master drive mechanism  7  of this embodiment comprises a drive wheel  701  and a first bead chain guide slot  702 , the drive wheel  701  rotates inside the first mounting box  1  by means of a rotating shaft, the first bead chain guide slot  702  is arranged on the right side of the first mounting box  1 , the bead chain  4  is snap-fitted to the drive wheel  701 , and the bead chain  4  moves inside the first bead chain guide slot  702 , the synchronous tooth slots  703  are evenly spaced on the body of the drive wheel  701 ; the first bead chain guide slot  702  limits the range of motion of the bead curtain body, the power control mechanism  6  drives the drive wheel  701  to rotate, which then drives the bead chain  4  to move, and the synchronous tooth slots  703  arranged on the body of the drive wheel  701  are connected to the chain pitch of the bead chain  4 , so as to maintain the stable rotation of the bead chain  4 . 
     Referring to  FIG.  3   , the slave mechanism  8  of this embodiment comprises a driven wheel  801  and a second bead chain guide slot  802 , the driven wheel  801  rotates inside the first mounting box  1  by a rotating shaft, the second bead chain guide slot  802  is arranged on the left side of the second mounting box  2 , the bead chain  4  is snap-fitted to the driven wheel  801  and moves inside the second bead chain guide slot  802 ; the second bead chain guide slot  802  is arranged for the driven wheel  801  to drive the bead chain  4 . 
     Referring to  FIG.  1    and  FIG.  5   , the retaining mechanism  5  of this embodiment comprises a C-shaped plate  501  and an adjusting screw  502 , the C-shaped plate  501  is mounted on the back of the first mounting box  1  and the second mounting box  2 , the adjusting screw  502  is threaded to the bottom of the C-shaped plate  501 , and the top of the adjusting screw  502  is fixedly connected to a retaining block  503 ; by turning the adjusting screw  502 , it is possible to adjust the relative position between the retaining block  503  and the top of the C-shaped plate  501 , so that the device can be easily installed on or removed from the original curtain rail. 
     Referring to  FIG.  1    and  FIG.  4   , the bead chain length adjusting mechanism  3  of this embodiment comprises a movable chain clip  301 , an insertion hole  302  is arranged in the interior of the movable chain clip  301  for the bead chain  4  to move through, a button  303  is movably installed inside the movable chain clip  301 , and a spring  304  is fixedly installed at the bottom of the button  303 ; the button  303 , when not being pressed, limits the movement of bead chain  4  with its projection, and frees the bead chain  4  when being pressed down, and automatically springs back under the action of the spring  304  when being released, so that the length of the bead chain  4  in use can be easily adjusted. 
     Referring to  FIG.  1   , in this embodiment, a retaining clip  9  is fixedly mounted on the surface of the bead chain  4 , which is arranged for retaining the curtain. 
     Embodiment 2 
     Referring to  FIG.  8   , this embodiment represents an innovative design of the bead chain length adjustment mechanism  3 , specifically, an intelligent motorized curtain mechanism, wherein a first mounting box  1 , a second mounting box  2 , a bead chain length adjustment mechanism  3  and a bead chain  4  are provided, the bead chain length adjustment mechanism  3  is movably installed in the first mounting box  1 , a retaining mechanism  5  is hung on the back of both the first mounting box  1  and the second mounting box  2 , the power control mechanism  6  and the master drive mechanism  7  are fixedly installed inside the first mounting box  1 , the slave mechanism  8  is fixedly installed inside the second mounting box  2 , the master drive mechanism  7  is arranged on the left side of the bead chain  4 , the slave mechanism  8  is arranged on the right side of the bead chain  4 , and the bead chain length adjusting mechanism  3  is snap-fitted to the surface of the bead chain 
     Referring to  FIG.  2   , the power control mechanism  6  of this embodiment comprises a lithium battery  601 , a drive motor  602  and a controller module  603 , the lithium battery  601 , the drive motor  602  and the controller module  603  are fixedly installed in the interior of the first mounting box  1 , the top of the drive motor  602  is provided with a clutch  604 , a master drive mechanism  7  is connected to the top of the clutch  604 , and a Bluetooth module  605  is fixedly mounted on the surface of the controller module  603 ; the lithium battery  601  is used for power supply, the drive motor  602  with the spacer drives the clutch  604 , which then drives the master drive mechanism  7  to rotate, and the Bluetooth module  605  is arranged to receive the control signal from the mobile phone APP. 
     Referring to  FIG.  2    and  FIG.  6   , the master drive mechanism  7  of this embodiment is provided with a drive wheel  701  and a first bead chain guide slot  702 , the drive wheel  701  rotates inside the first mounting box  1  by means of a rotating shaft, the first bead chain guide slot  702  is arranged on the right side of the first mounting box  1 , a bead chain  4  is snap-fitted to the drive wheel  701 , the bead chain  4  moves within the first bead chain guide slot  702 , the drive wheel  701  is provided with the synchronizing tooth slots  703  evenly spaced on the wheel body; the first bead chain guide slot  702  limits the range of motion of the bead curtain body, the drive wheel  701  driven by the power control mechanism  6  moves the bead chain  4 , and the synchronous tooth slots  703  arranged on the body of the drive wheel  701  are connected to the chain pitch of the bead chain  4 , so as to maintain the stable rotation of the bead chain  4 . 
     Referring to  FIG.  3   , a slave mechanism  8  of this embodiment comprises a driven wheel  801  and a second bead chain guide slot  802 , the driven wheel  801  rotates inside the first mounting box  1  by a rotating shaft, the second bead chain guide slot  802  is arranged on the left side of the second mounting box  2 , the bead chain  4  is snap-fitted to the driven wheel  801 , and the bead chain  4  moves inside the second bead chain guide slot  802 ; the second bead chain guide slot  802  is arranged for the driven wheel  801  to drive the bead chain  4 . 
     Referring to  FIG.  1    and  FIG.  5   , the retaining mechanism  5  of this embodiment comprises a C-shaped plate  501  and an adjusting screw  502 , the C-shaped plate  501  is mounted on the back of the first mounting box  1  and the second mounting box  2 , the adjusting screw  502  is threaded to the bottom of the C-shaped plate  501 , and the top of the adjusting screw  502  is fixedly connected to a retaining block  503 ; by turning the adjusting screw  502 , it is possible to adjust the relative position between the retaining block  503  and the top of the C-shaped plate  501 , so that the device can be easily installed on or removed from the original curtain rail. 
     Referring to  FIG.  1    and  FIG.  4   , the bead chain length adjustment mechanism  3  of this embodiment comprises a block, the block is movably connected to the interior of the first mounting box  1 , and the bead chain  4  is snap-fitted to the interior of the block; when the block is positioned away from the drive wheel  701 , the length of the bead chain  4  in use can be adjusted, and when the block is positioned near the drive wheel  701  or the driven wheel  801 , the bead chain is locked on the rail, with its length of section in use not adjustable. 
     Referring to  FIG.  1   , in this embodiment, a retaining clip  9  is fixedly mounted on the surface of the bead chain  4 , which is arranged for retaining the curtain. 
     Embodiment 3 
     Referring to  FIG.  10   , this embodiment represents another optimized design of the retaining mechanism  5 , specifically, a L-shaped plate  504  with sliding teeth and a driven wheel housing  505  with a stop structure serve as upper and lower retaining plates, and the distance to the original curtain rail is adjusted by pulling down and pushing up the L-shaped plate  504 , and retained by the sliding teeth on the L-shaped plate  504  and the stop structure on the driven wheel housing  505 . 
     Embodiment 4 
     Referring to  FIG.  11   , this embodiment represents another optimized design of the retaining mechanism  5 , specifically, the inner slot of the curtain rail with a specific cross-section is used for fixing purpose, and after the fixing piece  506  is stuck into the inner slot of the curtain rail, the fixing piece is clamped tight by rotating the rubber head screw  507 , and the drive wheel  701  and the driven wheel  801  module mechanism are arranged below the rubber head screw  507 . 
     Working Principle and Advantages: the power control mechanism  6  drives the master drive mechanism  7 , which forms a synchronous belt connecting with the bead chain through the slave mechanism and enables the master drive mechanism to move the curtain installed on the bead chain  4 , the retaining mechanism  5  easily clamps the first mounting box  1  on the original curtain rail, the power control mechanism  6  is powered by the lithium battery  601 , requiring no modification of the existing electrical wire layout, thus it is simply structured, lightweight and easy to be installed, besides, the first mounting box  1 , as the driving part, can be installed either at the end of the curtain rail, or at its middle; the lithium battery  601  is used for power supply, the drive motor  602  with the spacer drives the clutch  604 , which then drives the master drive mechanism  7  to rotate; the Bluetooth module  605  is arranged to receive the control signals from a mobile phone APP for easy control; the first bead chain guide slot  702  limits the range of motion of the bead curtain body, the power control mechanism  6  drives the drive wheel  701  to rotate, which then moves the drive bead chain  4 , the synchronous tooth slots  703  arranged on the body of the drive wheel  701  are connected with the chain pitch of the bead chain  4 , so as to maintain the stable rotation of the bead chain  4 ; the second bead chain guide slot  802  is arranged for moving the bead chain  4  with the driven wheel  801 ; by turning the adjusting screw  502 , it is possible to adjust the relative position between the retaining block  503  and the top of the C-shaped plate  501 , so that the device can be easily installed on or removed from the original curtain rail. 
     Although embodiments of the present invention are shown and described, it will be understood that a person of ordinary skill in the art changes, replaces and modifies these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.