Manual-automatic double-side synchronous belt transmission sunshade curtain

Abstract

The utility model relates to the technical field of transmission control, in particular to a manual-automatic double-side synchronous belt transmission sunshade curtain. The device comprises a winding drum, a pull rod and a synchronous belt, a right support and a left support are arranged on the two sides of the winding drum; the right support comprises a driving motor, a gear set and a synchronizing wheel, and the driving motor is meshed with the synchronizing wheel through the gear set; a position sensor is arranged on the gear set; the left support is provided with a synchronizing wheel; the synchronizing wheels on two sides are connected with a winding drum; the driven wheel comprises a support, a pulley and a pre-tightening wheel, and the synchronous belt is connected to the synchronous wheel through the pulley, the pre-tightening wheel and the pull rod. And a limiting sensor is arranged on the synchronous belt. The structure of the right support, the structure of the left support and the structure of the driven wheel are improved, an original winding drum, an original pull rod and an original synchronous belt are matched, a manual control mode and an automatic control mode are achieved, and accurate control over the movement position of the sunshade curtain is achieved.

Description

Technical Field

[0001] This utility model relates to the field of transmission control technology, specifically to a manual / automatic dual-sided synchronous belt drive sunshade. Background Technology

[0002] Traditional sunshade blinds often employ simplistic transmission methods, with manual operation being inconvenient and automatic control lacking in positional accuracy. To address these issues, engineers have actively explored solutions. For example, Chinese patent CN221322242U proposes an innovative design that achieves synchronized raising and lowering of the winding wheels by aligning the drive components on both sides, simplifying the internal structure and employing single-sided transmission. However, while current electric roller blinds possess automated control capabilities, they often suffer from unstable transmission and low efficiency due to single-sided power transmission, and retrofitting them is difficult and costly due to the difficulty in preserving the original structure. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a manual and automatic dual-sided synchronous belt driven sunshade curtain.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A manual / automatic dual-sided synchronous belt driven sunshade includes a roller, a pull rod, and a synchronous belt. The roller has a right support and a left support on both sides, and a driven pulley is mounted at the bottom of the pull rod. The right support includes a drive motor, a gear set, and a synchronous pulley; the drive motor meshes with the synchronous pulley via the gear set. A position sensor is mounted on the gear set. The left support has a synchronous pulley, and the synchronous pulleys on both sides are connected to the roller. The driven pulley includes a bracket, a pulley, and a pre-tensioning pulley; the synchronous belt is connected to the synchronous pulley via the pulley, pre-tensioning pulley, and pull rod. A limit sensor is mounted on the synchronous belt.

[0006] This technical solution improves the structure of the right support, left support, and driven wheel, and, in conjunction with the existing roller, pull rod, and synchronous belt, achieves both manual and automatic control modes, as well as precise control of the sunshade's movement position. Specifically, the roller and pull rod assembly are connected to the sunshade fabric via the up-and-down movement of the pull rod, while the double-sided supports fix and support these structures. The drive system is located within the right support, transmitting power to the spindle via a gear set and electromagnetic clutch, thereby driving the synchronous pulley to rotate. The double-sided synchronous belt connects the synchronous pulleys on both sides, converting power into the up-and-down movement of the pull rod. The sensor system includes position sensors and limit sensors, which monitor the position of the pull rod and the extreme positions of the sunshade fabric, respectively, control the operation of the drive motor and electromagnetic clutch, and transmit the sunshade fabric's status information to the central control unit.

[0007] In addition, the manual / automatic dual-sided synchronous belt driven sunshade curtain proposed in this utility model also has the following additional technical features:

[0008] According to one embodiment of the present invention, the drum further includes a mandrel, a plug, a coil spring, and a support block. The two ends of the mandrel are installed on the right support and the left support through the plug, and the end of the mandrel is connected to the synchronous pulley. The coil spring is sleeved in the middle of the mandrel and applies elastic force to the drum through the support block.

[0009] In this technical solution, the spindle not only supports the entire drum, but also transmits power through the connection at its end with the synchronous pulley; the plug ensures that the spindle can be firmly installed on the left and right supports, preventing it from loosening or falling off; the coil spring and the support block work together to provide the necessary elasticity to the drum, so that the sunshade curtain can remain stable and orderly during the rolling and unfolding process.

[0010] According to one embodiment of the present invention, the right support further includes a mounting base, a limiting block, an electromagnetic clutch, and a bearing housing. The mounting base is equipped with a drive motor and a bearing housing. The output end of the drive motor is connected to the electromagnetic clutch through the limiting block. The output end of the electromagnetic clutch is connected to the bearing housing, and the output end of the bearing housing is connected to a gear set.

[0011] In this technical solution, the limit block ensures that the output end of the drive motor and the input end of the electromagnetic clutch maintain an appropriate gap and connection, preventing malfunctions caused by excessively tight or loose connections. The electromagnetic clutch controls the engagement and disengagement of the clutch by controlling the on / off state of the current. When current flows, the clutch engages, transmitting the power of the drive motor to the bearing housing. When the current is cut off, the clutch disengages, cutting off the power transmission. The electromagnetic clutch also controls the magnitude of the transmitted torque by adjusting the magnitude of the current. Bearings are installed inside the bearing housing, and the bearings reduce friction and wear between rotating parts by rolling or sliding. Different transmission ratios and torque transmission capabilities are achieved by adjusting the number of teeth and module of the gear set.

[0012] According to one embodiment of the present invention, the gear set includes a housing, and gears I, II and III installed in the housing; gear I is connected to the output end of the bearing seat, gear II is connected to the right end of the spindle, and gear III meshes with gears I and II respectively; a position sensor is located between gear I and the housing.

[0013] In this technical solution, the housing prevents dust, moisture, and other impurities from entering, while also supporting the relative positions of the gear sets. Gear I is connected to the output end of the bearing housing, transmitting rotational power to gear III. Gear III, along with gear II, transmits rotational power to gear II. Gear II is connected to the right end of the spindle, transmitting rotational power to the spindle. A synchronous pulley on the spindle transmits power to the synchronous belt. The position sensor, typically an electromagnetic induction sensor or a photoelectric sensor, monitors the rotational state of gear I in real time and converts the monitored signal into an electrical signal, which is then transmitted to the controller.

[0014] According to one embodiment of the present invention, the right support further includes a guide wheel, which is located below the right synchronous wheel, and the synchronous belt is connected to the pull rod via the synchronous wheel and the guide wheel.

[0015] In this technical solution, the guide wheel is used to ensure that the synchronous belt can smoothly pass around the synchronous pulley and transmit power to the tie rod, thereby realizing the transmission of power or motion; by adjusting the position and angle of the guide wheel, it is ensured that the synchronous belt will not deviate from the predetermined path during operation, thereby maintaining synchronous operation with the synchronous pulley.

[0016] According to one embodiment of the present invention, the driven wheel further includes an adjusting screw, which is located between the preload wheel and the bracket. The tension of the timing belt is adjusted by adjusting the distance between the preload wheel and the pulley.

[0017] In this technical solution, during long-term use, the tension of the timing belt may change due to wear or deformation. The tension of the timing belt can be easily adjusted by rotating the adjusting screw. When the adjusting screw is rotated, its axial position changes, thereby pushing or pulling the preload pulley, changing the distance between the preload pulley and the pulley, and thus adjusting the tension of the timing belt.

[0018] According to one embodiment of the present invention, the limit sensor includes a limit piece located on the synchronous belt and a photoelectric sensor located at the driven wheel; the limit piece moves with the synchronous belt to the photoelectric sensor, and triggers a limit signal, causing the synchronous belt to stop moving.

[0019] In this technical solution, the photoelectric sensor consists of a transmitter and a receiver. The transmitter emits a light beam, and the receiver detects the reflected light beam or the light beam passing through the object. When the limiting piece passes the sensor, it changes the path of the light beam, which is then detected by the receiver.

[0020] According to one embodiment of the present invention, a sunshade curtain is provided between the roller and the pull rod, and the extreme position of the sunshade curtain when pulled down coincides with the installation position of the photoelectric sensor.

[0021] This technical solution achieves precise detection of the sunshade curtain's position by installing a photoelectric sensor at the extreme position of the curtain's pull-down. Once the curtain reaches this position, the photoelectric sensor triggers a control signal to stop the roller's rotation or reverse it, thereby preventing the curtain from being pulled down excessively or damaged.

[0022] According to one embodiment of the present invention, the present invention also includes a controller, the input terminals of which are respectively connected to a position sensor and a limit sensor; the output terminals of the controller are respectively connected to a drive motor; the controller has a built-in communication module, and the controller is connected to a central control unit through the communication module.

[0023] This technical solution uses the output signals of the position sensor and limit sensor as the input of the controller, and the input signal of the drive motor as the output of the controller, forming a closed-loop control system; the communication module uses RS-485, CAN bus or Wi-Fi, Bluetooth, Zigbee modules to communicate with the central control unit.

[0024] According to one embodiment of the present invention, the controller, right support, left support, and driven wheel are all mounted on the wall.

[0025] In this technical solution, the right support and the left support remain fixed, forming a stable support structure together with the driven wheel. The support structure not only supports the drum and tie rod located inside it, but also ensures that the synchronous belt can smoothly perform relative winding action.

[0026] Compared with the prior art, this utility model has the following advantages:

[0027] By improving the structure of the right support, left support, and driven wheel, and in conjunction with the original drum, pull rod, and synchronous belt, both manual and automatic control modes are achieved, as well as precise control of the movement position of the sunshade. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the right support structure.

[0030] Figure 3 This is a schematic diagram of the right support structure.

[0031] Figure 4 This is a schematic diagram of the controller and the reel.

[0032] In the diagram: 1. Right support; 11. Drive system; 111. Linear motor; 112. Limit block; 113. Electromagnetic clutch; 114. Bearing housing; 115. Position sensor; 12. Synchronous pulley; 13. Gear set; 121. Gear I; 122. Gear III; 123. Gear II; 14. Guide wheel; 15. Mounting base; 2. Left support; 3. Drum; 31. Mandrel; 32. Plug; 33. Support block; 34. Coil spring; 4. Tie rod; 5. Driven wheel; 51. Bracket; 52. Pulley; 53. Preload wheel; 6. Limit sensor; 7. Synchronous belt; 8. Controller. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1

[0035] like Figures 1 to 4 As shown, this embodiment provides a manual / automatic dual-sided synchronous belt driven sunshade, including a roller 3, a pull rod 4, and a synchronous belt 7; the roller 3 is provided with a right support 1 and a left support 2 on both sides, and the pull rod 4 is equipped with a driven wheel 5 at the bottom; the right support 1 includes a drive motor, a gear set 13, and a synchronous wheel 12, and the drive motor meshes with the synchronous wheel 12 through the gear set 13; a position sensor 115 is installed on the gear set 13; the left support 2 is equipped with the synchronous wheel 12, and the synchronous wheels 12 on both sides are connected to the roller 3; the driven wheel 5 includes a bracket 51, a pulley 52, and a pre-tensioning wheel 53, and the synchronous belt 7 is connected to the synchronous wheel 12 through the pulley 52, the pre-tensioning wheel 53, and the pull rod 4; a limit sensor 6 is installed on the synchronous belt 7.

[0036] like Figures 1 to 4 As shown, this technical solution improves the structure of the support, left support 2, and driven wheel 5, and, in conjunction with the original roller 3, pull rod 4, and synchronous belt 7, achieves both manual and automatic control modes, as well as precise control of the sunshade's movement position. Specifically, the roller 3 and pull rod 4 assembly are connected to the sunshade fabric through the up-and-down movement of the pull rod 4, while the double-sided supports fix and support these structures; the drive system 11 is located inside the right support 1, and transmits power to the spindle 31 through the gear set 13 and electromagnetic clutch 113, thereby driving the synchronous wheel 12 to rotate; the double-sided synchronous belt 7 connects the synchronous wheels 12 on both sides, converting the power into the up-and-down movement of the pull rod 4; the sensor system includes a position sensor 115 and a limit sensor 6, which monitor the position of the pull rod 4 and the limit position of the sunshade fabric, respectively, control the operation of the drive motor and electromagnetic clutch 113, and transmit the status information of the sunshade fabric to the central control unit.

[0037] In addition, the manual / automatic dual-sided synchronous belt driven sunshade curtain proposed in this utility model also has the following additional technical features:

[0038] According to one embodiment of the present invention, the drum 3 further includes a spindle 31, a plug 32, a coil spring 34, and a support block 33. The two ends of the spindle 31 are installed on the right support 1 and the left support 2 through the plug 32, and the end of the spindle 31 is connected to the synchronous pulley 12. The coil spring 34 is sleeved in the middle of the spindle 31, and the support block 33 applies elastic force to the drum 3.

[0039] In this technical solution, the spindle 31 not only supports the entire drum 3, but also transmits power to the synchronous wheel 12 through the connection at its end; the plug 32 ensures that the spindle 31 can be firmly installed on the left and right supports 1, preventing it from loosening or falling off; the coil spring 34 and the support block 33 work together to provide the necessary elasticity to the drum 3, so that the sunshade curtain can remain stable and orderly during the rolling and unfolding process.

[0040] According to one embodiment of the present invention, the right support 1 further includes a mounting base 15, a limiting block 112, an electromagnetic clutch 113, and a bearing seat 114. A drive motor and a bearing seat 114 are mounted on the mounting base 15. The output end of the drive motor is connected to the electromagnetic clutch 113 through the limiting block 112. The output end of the electromagnetic clutch 113 is connected to the bearing seat 114. The output end of the bearing seat 114 is connected to the gear set 13.

[0041] In this technical solution, the limiting block 112 ensures that the output end of the drive motor and the input end of the electromagnetic clutch 113 maintain an appropriate gap and connection state, preventing malfunctions caused by excessively tight or loose connections. The electromagnetic clutch 113 controls the engagement and disengagement of the clutch by controlling the on / off state of the current. When the current flows, the clutch engages, transmitting the power of the drive motor to the bearing housing 114. When the current is cut off, the clutch disengages, cutting off the power transmission. The electromagnetic clutch 113 also controls the magnitude of the transmitted torque by adjusting the magnitude of the current. The bearing housing 114 contains bearings, which reduce friction and wear between rotating parts by rolling or sliding. Different transmission ratios and torque transmission capabilities are achieved by adjusting the number of teeth and module of the gear set 13.

[0042] According to one embodiment of the present invention, the gear set 13 includes a housing, and gears I 121, II 123 and III 122 installed in the housing; gear I 121 is connected to the output end of bearing seat 114, gear II 123 is connected to the right end of spindle 31, and gear III 122 meshes with gears I 121 and II 123 respectively; position sensor 115 is located between gear I 121 and housing.

[0043] In this technical solution, the housing prevents dust, moisture, and other impurities from entering, while simultaneously supporting the relative positions of the gear sets 13. Gear I 121 is connected to the output end of the bearing housing 114, transmitting rotational power to gear III 122. Gear III 122 and gear II 123 transmit rotational power to gear II 123. Gear II 123 is connected to the right end of the spindle 31, transmitting rotational power to the spindle 31. The spindle 31 has a synchronous pulley 12, which transmits power to the synchronous belt 7. The position sensor 115 is typically an electromagnetic induction sensor or a photoelectric sensor, which monitors the rotational state of gear I 121 in real time and converts the monitored signal into an electrical signal, which is then transmitted to the controller 8.

[0044] According to one embodiment of the present invention, the right support 1 further includes a guide wheel 14, which is located below the right synchronous wheel 12. The synchronous belt 7 is connected to the pull rod 4 via the synchronous wheel 12 and the guide wheel 14.

[0045] In this technical solution, the guide wheel 14 is used to ensure that the synchronous belt 7 can smoothly pass around the synchronous wheel 12 and transmit to the tie rod 4, thereby realizing the transmission of power or motion; by adjusting the position and angle of the guide wheel 14, it is ensured that the synchronous belt 7 will not deviate from the predetermined path during operation, thereby maintaining synchronous operation with the synchronous wheel 12.

[0046] According to one embodiment of the present invention, the driven wheel 5 further includes an adjusting screw, which is located between the preload wheel 53 and the bracket 51. The tension of the synchronous belt 7 is adjusted by adjusting the distance between the preload wheel 53 and the pulley 52.

[0047] In this technical solution, during long-term use, the tension of the timing belt 7 may change due to wear or deformation. The tension of the timing belt 7 can be easily adjusted by rotating the adjusting screw. When the adjusting screw is rotated, its axial position will change, thereby pushing or pulling the preload wheel 53, changing the distance between the preload wheel 53 and the pulley 52, and thus adjusting the tension of the timing belt 7.

[0048] According to one embodiment of the present invention, the limit sensor 6 includes a limit piece located on the synchronous belt 7 and a photoelectric sensor located at the driven wheel 5; the limit piece moves with the synchronous belt 7 to the photoelectric sensor, and when the limit signal is triggered, the synchronous belt 7 stops moving.

[0049] In this technical solution, the photoelectric sensor consists of a transmitter and a receiver. The transmitter emits a light beam, and the receiver detects the reflected light beam or the light beam passing through the object. When the limiting piece passes the sensor, it changes the path of the light beam, which is then detected by the receiver.

[0050] According to one embodiment of the present invention, a sunshade curtain is provided between the roller 3 and the pull rod 4, and the extreme position of the sunshade curtain when pulled down is consistent with the installation position of the photoelectric sensor.

[0051] This technical solution achieves precise detection of the sunshade curtain's position by installing a photoelectric sensor at the extreme position of the curtain's pull-down. Once the curtain reaches this position, the photoelectric sensor triggers a control signal to stop or reverse the rotation of the roller 3, thereby preventing the curtain from being pulled down excessively or damaged.

[0052] According to one embodiment of the present invention, the present invention also includes a controller 8, the input terminals of which are connected to the position sensor 115 and the limit sensor 6 respectively; the output terminals of the controller 8 are connected to the drive motor respectively; the controller 8 has a built-in communication module, and the controller 8 is connected to the main control unit through the communication module.

[0053] This technical solution uses the output signals of position sensor 115 and limit sensor 6 as inputs to controller 8, and the input signal of drive motor as output to controller 8, forming a closed-loop control system; the communication module uses RS-485, CAN bus or Wi-Fi, Bluetooth, Zigbee modules to communicate with the central control unit.

[0054] According to one embodiment of the present invention, the controller 8, the right support 1, the left support 2, and the driven wheel 5 are all mounted on the wall.

[0055] In this technical solution, the right support 1 and the left support 2 remain fixed, forming a stable support structure together with the driven wheel 5. The support structure not only supports the drum 3 and the tie rod 4 located inside it, but also ensures that the synchronous belt 7 can smoothly perform relative winding action.

[0056] The usage process of the above embodiments is as follows:

[0057] like Figures 1 to 4 As shown, in manual mode, the user drives the sunshade curtain to unfold and retract by pulling the lever 4 up and down; the movement of the lever 4 drives the driven wheel 5 and its pulley 52 and pretensioning wheel 53, thereby pulling or releasing the synchronous belt 7; guided by the synchronous pulleys 12 on both sides, the synchronous belt 7 converts the linear motion of the lever 4 into the rotational motion of the drum 3; at this time, the drive motor and electromagnetic clutch 113 are in a non-working state, and the power transmission between the gear set 13 and the synchronous pulley 12 is cut off; the position sensor 115 and the limit sensor 6 continuously monitor the position of the lever 4 and the sunshade curtain;

[0058] like Figures 1 to 4 As shown, in electric mode, the user sends information to the controller 8 via the main control unit. After receiving the information, the controller 8 transmits the power of the drive motor to the gear set 13 through the electromagnetic clutch 113. The rotation of the gear set 13 drives the spindle 31 and its synchronous pulley 12, which in turn drives the synchronous belt 7 to move. The movement of the synchronous belt 7 is then converted into the unfolding or retraction of the sunshade curtain through the driven pulley 5 and the pull rod 4. During this process, the position sensor 115 monitors the rotation state of the gear set 13 in real time and feeds the signal back to the controller 8. When the sunshade curtain reaches the preset position or the limit position, the limit sensor 6 triggers the control signal. The controller 8 controls the drive motor to stop working or reverse according to the signal, thereby achieving precise control of the sunshade curtain.

[0059] It should be noted that this utility model only improves the hardware structure and does not make any improvements to the software, and is therefore protected as a utility model.

[0060] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A manual / automatic dual-sided synchronous belt driven sunshade curtain, characterized in that, The device includes a drum (3), a pull rod (4), and a timing belt (7); the drum (3) has a right support (1) and a left support (2) on both sides, and the pull rod (4) has a driven wheel (5) at the bottom; the right support (1) includes a drive motor, a gear set (13), and a timing wheel (12), and the drive motor meshes with the timing wheel (12) through the gear set (13); the gear set (13) is equipped with a position sensor (115); the left support (2) is equipped with a timing wheel (12), and the timing wheels (12) on both sides are connected to the drum (3); the driven wheel (5) includes a bracket (51), a pulley (52), and a pre-tensioning wheel (53), and the timing belt (7) is connected to the timing wheel (12) through the pulley (52), the pre-tensioning wheel (53), and the pull rod (4); the timing belt (7) is equipped with a limit sensor (6).

2. The manual / automatic dual-sided synchronous belt driven sunshade curtain as described in claim 1, characterized in that, The drum (3) also includes a spindle (31), a plug (32), a coil spring (34), and a support block (33). The two ends of the spindle (31) are installed on the right support (1) and the left support (2) through the plug (32), and the end of the spindle (31) is connected to the synchronous pulley (12). The coil spring (34) is sleeved in the middle of the spindle (31), and the support block (33) applies elastic force to the drum (3).

3. The manual / automatic dual-sided synchronous belt driven sunshade curtain as described in claim 2, characterized in that, The right support (1) also includes a mounting base (15), a limiting block (112), an electromagnetic clutch (113), and a bearing seat (114). The mounting base (15) is equipped with a drive motor and a bearing seat (114). The output end of the drive motor is connected to the electromagnetic clutch (113) through the limiting block (112). The output end of the electromagnetic clutch (113) is connected to the bearing seat (114). The output end of the bearing seat (114) is connected to the gear set (13).

4. The manual / automatic dual-sided synchronous belt driven sunshade curtain as described in claim 3, characterized in that, The gear set (13) includes a housing, and gear I (121), gear II (123) and gear III (122) installed in the housing; gear I (121) is connected to the output end of the bearing seat (114), gear II (123) is connected to the right end of the spindle (31), and gear III (122) meshes with gear I (121) and gear II (123) respectively; the position sensor (115) is located between gear I (121) and the housing.

5. The manual / automatic dual-sided synchronous belt driven sunshade curtain as described in claim 1, characterized in that, The right support (1) also includes a guide wheel (14), which is located below the right synchronous wheel (12). The synchronous belt (7) is connected to the pull rod (4) via the synchronous wheel (12) and the guide wheel (14).

6. The manual / automatic dual-sided synchronous belt driven sunshade curtain as described in claim 1, characterized in that, The driven wheel (5) also includes an adjusting screw, which is located between the preload wheel (53) and the bracket (51). By adjusting the distance between the preload wheel (53) and the pulley (52), the tension of the timing belt (7) can be adjusted.

7. The manual / automatic dual-sided synchronous belt driven sunshade curtain as described in claim 1, characterized in that, The limit sensor (6) includes a limit piece located on the synchronous belt (7) and a photoelectric sensor located at the driven wheel (5); the limit piece moves with the synchronous belt (7) to the photoelectric sensor, and the synchronous belt (7) stops moving when the limit signal is triggered.

8. The manual / automatic dual-sided synchronous belt driven sunshade curtain as described in claim 1, characterized in that, A sunshade curtain is provided between the roller (3) and the pull rod (4), and the extreme position of the sunshade curtain when pulled down is consistent with the installation position of the photoelectric sensor.

9. The manual / automatic dual-sided synchronous belt driven sunshade curtain as described in claim 1, characterized in that, It also includes a controller (8), whose input terminals are connected to the position sensor (115) and the limit sensor (6) respectively; the output terminals of the controller (8) are connected to the drive motor respectively; the controller (8) has a built-in communication module, and the controller (8) is connected to the main control unit through the communication module.

10. The manual / automatic dual-sided synchronous belt driven sunshade curtain as described in claim 9, characterized in that, The controller (8), right support (1), left support (2), and driven wheel (5) are all installed on the wall.

Images