CN106703665A - Rain-shielding roller shutter for screen window - Google Patents

Abstract

The invention discloses a rain-shielding roller blind for screen windows, which comprises a waterproof fixing frame, a waterproof roller blind, a roller blind shaft, a motor, a Hall position sensor, a magnet, a rainwater sensing device and a control circuit board. The waterproof fixing frame is fixed on the frame of the screen window and a sliding groove is provided, and Hall position sensors are installed at the upper and lower ends of the sliding groove; a sliding rod is installed at the lower end of the waterproof roller blind, and a magnet is installed on the sliding rod, and the sliding rod is embedded in the sliding groove; the rain sensing device is set on Outside the room, it can detect whether there is rain and send a control signal to the control circuit board; the control circuit board controls the rotation of the motor according to the control signal, and the motor drives the roller blind shaft to lower or retract the waterproof roller blind. When it rains, the waterproof roller blind can be lowered automatically to realize the function of covering the rain; and after the waterproof roller blind is put down, the screen window can be cleaned from the outside of the window with water without disassembling the screen window.

Description

A kind of rain-shielding roller blind for screen window

technical field

The invention relates to a roller blind, in particular to a rain-shielding roller blind for screen windows.

Background technique

When the windows of many buildings are open, screens are used to prevent mosquitoes from entering the room. But existing screen window generally does not possess the function of keeping out the rain, and rainwater easily enters room from screen window with wind when it rains, and causes decoration in the room, article to be drenched in rain and damaged. In order to prevent losses, people install awnings above the windows, but they still cannot stop the rainwater from entering when the wind and rain are strong. Therefore, people will specially close the windows when they leave home, if they are forgotten, it is easy to cause losses.

The utility model patent with the authorized announcement number CN 202100169 U discloses a windproof and rainproof roller shutter door and window. This kind of door and window can be used to protect the car from wind and rain, but the roller blind must be pulled down manually, which is not suitable for houses, especially for Houses with screened windows.

In addition, the screen window installed on the window will get dirty soon after being exposed to the wind and the sun. When the current screen window is to be cleaned, if it is not disassembled, it is difficult to clean the outside of the screen window. If the outside is to be cleaned, it must be disassembled, which is very troublesome and easy to damage the screen window.

Contents of the invention

The object of the present invention is to provide a rain-shielding roller blind for a screen window in order to solve the problem that the screen window in the prior art cannot cover the rain and is not easy to clean.

A rain-shielding roller blind for a screen window, comprising a waterproof fixing frame, a waterproof roller blind, a roller shutter shaft, a motor, a Hall position sensor, a magnet, a rain sensing device, and a control circuit board. On one side in the room, including the first vertical arm, the second vertical arm, the upper cross beam and the lower cross beam, the first vertical arm and the second vertical arm are all provided with sliding grooves towards the middle side, and the sliding grooves Hall position sensors are installed at the upper and lower ends, the lower beam is provided with an upward slot, and the bottom of the slot is provided with an opening facing outside the room; the lower end of the waterproof roller shutter is provided with a slide bar, and magnets are installed at both ends of the slide bar. Embedded in the sliding groove of the waterproof fixing frame, the sliding rod can move up and down in the sliding groove of the waterproof fixing frame; the waterproof roller blind is wound on the roller shutter shaft, one end of the roller shutter shaft is movably connected to the upper end of the waterproof fixing frame, and the other end of the roller shutter shaft Connect the motor, and the motor is fixed on the upper end of the waterproof fixing frame; the control circuit board is respectively connected to the motor, the Hall position sensor, and the rain sensing device through wires; The board sends control signals; the control circuit board is fixed on the waterproof fixing frame, and the microcontroller is installed on the control circuit board, which can control the rotation of the motor according to the control signal.

When it is raining, the rain sensing device can detect the presence of rain, so as to send a control signal of rain to the control circuit board; when it is not raining, the rain sensing device can send a control signal of no rain to the control circuit board. The Hall position sensor cooperates with the magnet to sense the position of the slide bar. When the control circuit board receives the control signal of rain, it will send a forward control signal to the motor according to the position of the slide bar sensed by the Hall position sensor, and the motor will rotate and drive the roller blind shaft, so that the waterproof roller blind is completely lowered Block rainwater; the blocked rainwater flows into the slot of the lower beam, and then flows outside from the opening at the bottom of the slot. When the control circuit board receives the control signal of no rain, it will send a reverse control signal to the motor according to the position of the slide bar sensed by the Hall position sensor. Return to fully stowed state.

Further, it also includes a solar battery panel and a storage battery connected to the control circuit board, and the solar battery panel is installed on one side outside the room. The solar panels convert solar energy into electricity, which is stored in the battery; the battery supplies power to the motor and rain sensing device through the control circuit board. In this way, there is an additional power supply mode, not only solar energy can be utilized, but also the screen window can still work with the rain-shielding roller blind when the indoor power supply fails (such as when thunderstorms cause power failure in the room).

Further, a switch is arranged on the control circuit board, through which the rotation of the motor can be manually controlled.

Furthermore, the switch on the control circuit board is an automatic control switch, and an infrared receiving head is arranged on the control circuit board. The infrared receiving head can receive the control signal sent by wireless, and the control circuit board and the automatic control switch control the rotation of the motor according to the control signal. In this way, the rotation of the motor can be manually controlled by the remote controller, so that the waterproof roller blind is lowered or retracted.

Further, it also includes a casing, which is arranged on the side of the waterproof fixing frame close to the room and connected with the first vertical arm and the second vertical arm. The casing is used to cover components such as the control circuit board and the storage battery.

In addition, because the rain-blocking roller blind for the screen window is on the side of the screen window facing the room, it can be waterproof. Therefore, if you want to clean the screen window, just lower the waterproof roller blind completely, and spray water on the screen window from the outside to clean the screen window, eliminating the need to disassemble the screen window.

Beneficial effects of the present invention: without changing the structure of the existing windows and screens, only by installing the present invention, the waterproof roller blind can be lowered automatically in rainy days to block the rain, which overcomes the deficiency that the existing screens cannot block the rain; When the waterproof roller blind is used, the screen window can be cleaned from the outside of the window with water without dismantling the screen window; solar energy can be used, which is energy-saving, environmentally friendly and more secure; it not only realizes automatic control of the opening and closing of the waterproof roller blind, but also can be manually controlled, which is easy to use ; The structure is simple, the manufacturing cost is low, and it is easy to popularize and apply.

Description of drawings

Fig. 1 is a front view of the internal structure of an embodiment of the present invention.

Fig. 2 is a side view of the internal structure of an embodiment of the present invention.

Fig. 3 is a schematic diagram of the working principle of the present invention.

Figure 4 is a schematic diagram of the working principle of the Hall position sensor (A1160LLHLX-T).

Figure 5 is an infrared receiving circuit diagram.

Figure 6 is a schematic diagram of the motor drive.

Fig. 7 is a control flow chart of the automatic control mode of the present invention.

Fig. 8 is a control flow chart of the present invention through the manual control mode of the remote controller.

In Fig. 1 and Fig. 2, 1. Waterproof rolling shutter, 2. Rolling shutter shaft, 3. Motor, 4. Waterproof fixing frame, 41. First vertical arm, 42. Second vertical arm, 43. Upper beam , 44 lower beam, 5. rain sensing device, 6. solar panel, 7 battery, 8. control circuit board, 9. hall position sensor, 10. sliding rod, 11. sliding groove, 12. shell, 13. screen window frame.

detailed description

As shown in Figures 1 and 2, a rain-shielding roller blind for screen windows includes a waterproof fixing frame 4, a waterproof roller blind 1, a roller blind shaft 2, a motor 3, a rain sensing device 5, a solar panel 6, a storage battery 7, Hall position sensor 9, magnet (not shown in the figure), housing 12 and control circuit board 8, wherein, waterproof fixing mount 4 is fixed on the side of screen window frame 13 to the room, comprises first vertical arm 41, The second vertical arm 42, the upper cross beam 43 and the lower cross beam 44, the first vertical arm 41 and the second vertical arm 42 are all provided with sliding grooves 11 toward the middle side, and the upper and lower ends of the sliding grooves are equipped with Hall positions. The sensor 9, the lower beam 44 is provided with an upward slot, and the bottom of the slot is provided with an opening facing outside the room; the lower end of the waterproof roller blind is provided with a slide bar 10, and magnets are installed at both ends of the slide bar 10, and the two ends of the slide bar 10 are embedded in waterproof and fixed In the sliding groove 11 of the frame 4, the sliding rod 10 can move up and down in the sliding groove 11 of the waterproof fixed frame 4; the waterproof roller blind 1 is wound on the roller blind shaft 2, and one end of the roller blind shaft 2 is movably connected to the first vertical arm 41 The upper end of the roller shutter shaft 2 is connected to the motor 3 at the other end, and the motor 3 is fixed on the upper end of the second vertical arm 42; the rain sensing device 5 and the solar panel 6 are arranged outside the room; One side of the room is connected with the first vertical arm 41 and the second vertical arm 42, and the control circuit board 8, storage battery 7, motor 3 and roller shutter shaft 2 are housed in the housing 12; microcontroller is installed on the control circuit board 8, The motor 3, the rain sensing device 5, the Hall position sensor 9 and the storage battery 7 are respectively connected by wires.

Described solar cell panel 6 is installed on the side outside the room, and is connected with control circuit board 8 by wire.

The control circuit board 8 is provided with an automatic control switch, and the control circuit board 8 is provided with an infrared receiving head.

As shown in Figure 3, the infrared receiving circuit that the rain sensing device 5 and the control circuit board constitutes, or the rain detection circuit that the infrared receiving head and the control circuit board constitute, is used as a trigger circuit; Hall position sensor, magnet and the control circuit board constitute The slider position sensing circuit is used as the position judgment circuit; the microcontroller on the control circuit board analyzes the control signals from the trigger circuit and the position judgment circuit, and controls the rotation of the motor according to these control signals.

Figure 4 is a schematic diagram of the working principle of the Hall position sensor 9 (A1160LLHLX-T). When the slider 10 is at the bottom, the Hall position sensor 92 at the bottom will output a low level, and the Hall position sensor 91 at the top will output a high level; When the slide bar 10 is at the top, the bottom Hall position sensor 92 outputs a high level, and the top Hall position sensor 91 outputs a low level; when the slide bar 10 is neither at the top nor at the bottom, the two Hall positions The sensors 9 all output high levels. Therefore, the position of the slider 10 can be obtained according to these high and low levels.

Figure 5 is an infrared receiving circuit diagram. When receiving an infrared signal, the infrared receiving head (RPM6938) will generate a level change to the microcontroller.

Fig. 6 is a schematic diagram of the motor drive, M_P and M_N are respectively connected to the two forward and reverse control terminals of the motor 3, SET_F is the input terminal of the forward control signal of the microcontroller; SET_R is the input terminal of the reverse control signal of the microcontroller.

The motor 3 can recognize two kinds of control signals, which are the forward rotation control signal of the motor and the reverse rotation control signal of the motor. The screen window uses the automatic control method of the rain-shielding roller blind: as shown in Figure 7, when it rains, the rain sensor 5 can detect the existence of rainwater, thereby sending a control signal that there is rain to the control circuit board 8, and the control circuit board 8 When receiving the control signal of rain, it will send a forward control signal to the motor 3, the motor 3 rotates and drives the roller blind shaft 2, so that the waterproof roller blind 1 is completely put down to block the rain; when it is not raining, the rain sensing device 5 can Send the control signal of no rain to the control circuit board 8, when the control circuit board 8 receives the control signal of no rain, it will send the reverse control signal to the motor 3, and the motor 3 reversely rotates and drives the roller blind shaft 2, so that Waterproof roller blind 1 recovers the state that is fully packed up.

The screen window uses the rain-shielding roller blind through the manual control mode of the remote controller: as shown in Figure 8, it is also possible to manually control the lifting of the waterproof roller blind 1 with an infrared remote controller. When the slide bar 10 is at the top, the infrared remote controller emits the roller blind After the descending control signal, the infrared receiver of the control circuit board 8 receives the control signal, and the control circuit board 8 sends the forward rotation signal to the motor 3, and the motor 3 rotates forward, and the slide bar 10 can reach the bottom end; when the slide bar 10 At the bottom position, after the infrared remote control sends the control signal for the roller blind to rise, the infrared receiving head of the control circuit board 8 receives the control signal, and the control circuit board 8 sends the reverse signal to the motor 3, and the motor 3 reverses, and the slide bar 10 will be able to reach the top.

When the rainwater is not enough, the waterproof roller blind 1 can be put down, and water can be sprayed on the screen window from the outside to clean the screen window, which eliminates the need to dismantle the screen window.

Claims (5)

1. A screen window is used to shield the rain roller blind, comprising a waterproof fixing frame, a waterproof roller blind, a roller shutter shaft, a motor, a Hall position sensor, a magnet, a rain sensing device and a control circuit board, and it is characterized in that: the waterproof fixing frame is fixed on On the side of the screen window frame towards the room, it includes a first vertical arm, a second vertical arm, an upper crossbeam and a lower crossbeam, the first vertical arm and the second vertical arm are all provided with slide grooves towards the middle side, The upper and lower ends of the sliding groove are equipped with Hall position sensors. The lower beam is provided with an upward slot, and the bottom of the slot is provided with an opening facing outside the room; The two ends of the rod are embedded in the sliding groove of the waterproof fixing frame, and the sliding rod can move up and down in the sliding groove of the waterproof fixing frame; The other end of the shaft is connected to the motor, and the motor is fixed on the upper end of the waterproof fixing frame; the control circuit board is connected to the motor, the Hall position sensor, and the rain sensing device through wires; The control signal is sent to the control circuit board; the control circuit board is fixed on the waterproof fixing frame, and the microcontroller is installed on the control circuit board, which can control the rotation of the motor according to the control signal. 2 . The rain-shielding roller blind for screen windows according to claim 1 , further comprising a solar cell panel and a storage battery connected to the control circuit board, and the solar cell panel is installed on the side outside the room. 3. The rain-shielding roller blind for screen windows according to claim 1 or 2, characterized in that a switch is arranged on the control circuit board, and the rotation of the motor can be manually controlled by the switch. 4. The rain-shielding roller blind for screen windows according to claim 3, characterized in that: the switch on the control circuit board is an automatic control switch, and an infrared receiving head is arranged on the control circuit board. 5. According to any one of claims 1, 2, and 4, the rain-shielding roller blind for screen windows is characterized in that: it also includes a casing, and the casing is arranged on the side of the waterproof fixing frame close to the room, and is connected to the first vertical arm. Connected to the second vertical arm.