An electric roller shutter and a method of switching its state of use

Abstract

The application discloses an electric roller shutter and a use state switching method thereof. The electric roller shutter comprises an upper electric rolling device, a lower electric rolling device and a curtain cloth. The upper electric rolling device and the lower electric rolling device are arranged separately in an up-down mode, and are connected with upper and lower sides of the curtain cloth respectively. The upper electric rolling device and the lower electric rolling device are used for driving the curtain cloth to roll up and release. The curtain cloth has an upper shading area and a lower shading area which are adjacent to each other. The shading rate of the upper shading area is lower than that of the lower shading area. The electric roller shutter can switch the shading area and the shading effect, and is more flexible in use.

Description

Technical Field

[0001] This invention relates to the field of electric curtains, and in particular to an electric roller blind and a method for switching its usage status. Background Technology

[0002] Electric roller blinds are light-blocking devices that use an electric rolling mechanism (such as a tubular motor) to drive the curtain to release and roll up, and are a common device in modern smart homes. However, existing electric roller blinds generally only allow adjustment of the light-blocking area and cannot control the light-blocking effect of the blocked area, which limits their use.

[0003] In view of the above problems, it is necessary to study an electric roller blind and its usage state switching method, which can switch between the shading area and the shading effect, making it more flexible in use. Summary of the Invention

[0004] The purpose of this invention is to provide an electric roller blind and a method for switching its usage status, which can switch between the shading area and the shading effect, making it more flexible to use.

[0005] To achieve the above objectives, the solution of the present invention is:

[0006] An electric roller blind includes an upper electric rolling device, a lower electric rolling device, and a curtain fabric; the upper and lower electric rolling devices are arranged separately and connected to the upper and lower sides of the curtain fabric respectively; both the upper and lower electric rolling devices are used to drive the curtain fabric to roll up and release; the curtain fabric has an upper shading area and a lower shading area that are adjacent to each other, and the shading rate of the upper shading area is lower than that of the lower shading area.

[0007] The upper electric winding and unwinding device includes an upper tubular motor, and the upper side of the curtain is connected to the rotor of the upper tubular motor.

[0008] The upper side of the curtain forms a connecting area, which is connected to the rotor of the upper tubular motor. The connecting area is provided with several rigid guide reinforcing strips, which are spaced apart in the connecting area and are arranged parallel to the upper tubular motor.

[0009] The guide reinforcement strip is made of plastic or metal; the guide reinforcement strip is bonded to the connecting area or sewn together with stitches.

[0010] The connecting area of ​​the curtain is connected to the upper tubular motor via at least two connecting ropes, and the connecting ropes are detachably connected to the connecting area.

[0011] The lower electric winding and unwinding device includes a protective box and a lower tubular motor installed in the protective box; the rotor of the lower tubular motor has a connecting slot along its axial direction; the protective box has an inlet and outlet slot along its axial direction, and at least one end of the protective box has a disassembly and assembly opening, which communicates with the inlet and outlet slot, and the disassembly and assembly opening is fitted with a disassembly and assembly cover for opening and closing the disassembly and assembly opening; the curtain moves through the inlet and outlet slot of the protective box, and a connecting seat is provided on the lower side of the curtain, which slides into the connecting slot of the lower tubular motor, and the connecting seat and the connecting slot are circumferentially and radially limited.

[0012] The protective box has two opposing curved plates, and the inlet / outlet slot is formed between the two curved plates.

[0013] One side of the disassembly cover is pivotally connected to one side of the disassembly opening, and the other side of the disassembly cover is movably fastened to the protective box.

[0014] When the disassembly cover closes the disassembly opening, the disassembly cover is flush with the end face of the protective box that has the disassembly opening.

[0015] A method for switching the usage states of an electric roller blind as described above, the electric roller blind having a first usage state, a second usage state, a third usage state, a fourth usage state, and a fifth usage state; when the electric roller blind is in the first usage state, the upper and lower light-blocking areas of the curtain are respectively rolled up to a fully rolled-up state by the upper and lower electric rolling-up devices; when the electric roller blind is in the second usage state, the upper light-blocking area of ​​the curtain is rolled up to a fully rolled-up state by the upper electric rolling-up device, and the lower light-blocking area of ​​the curtain is released to a half-open state by the lower electric rolling-up device; when the electric roller blind is in the third usage state, the upper light-blocking area of ​​the curtain is released to a half-open state by the upper electric rolling-up device, and the lower light-blocking area of ​​the curtain is rolled up to a fully rolled-up state by the lower electric rolling-up device. The electric roller blind is in the following states: When in the fourth operating state, the upper light-blocking area of ​​the curtain is fully rolled up by the upper electric rolling device, and the lower light-blocking area is fully opened by the lower electric rolling device; when in the fifth operating state, the upper light-blocking area of ​​the curtain is fully opened by the upper electric rolling device, and the lower light-blocking area is fully rolled up by the lower electric rolling device; the switching method from the first operating state to the second operating state is as follows: the upper electric rolling device is not working, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to a half-open state; the switching method from the first operating state to the third operating state is as follows: the upper electric rolling device releases the upper light-blocking area of ​​the curtain to a half-open state. In the open state, the lower electric rolling mechanism is not working; the switching method for the electric roller blind from the first to the fourth usage state is as follows: the upper electric rolling mechanism is not working, and the lower electric rolling mechanism releases the lower light-blocking area of ​​the curtain to the fully open state; the switching method for the electric roller blind from the first to the fifth usage state is as follows: the upper electric rolling mechanism releases the upper light-blocking area of ​​the curtain to the fully open state, and the lower electric rolling mechanism is not working; the switching method for the electric roller blind from the second to the first usage state is as follows: the upper electric rolling mechanism is not working, and the lower electric rolling mechanism rolls up the lower light-blocking area of ​​the curtain to the fully retracted state; the switching method for the electric roller blind from the second to the third usage state is as follows: the upper electric rolling mechanism... The upper light-blocking area of ​​the curtain is released to a half-open state, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to a fully retracted state; the switching method for the electric roller blind from the second to the fourth use state is: the upper electric rolling device is not working, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to a fully open state; the switching method for the electric roller blind from the second to the fifth use state is: the upper electric rolling device releases the upper light-blocking area of ​​the curtain to a fully open state, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to a fully retracted state; the switching method for the electric roller blind from the third to the first use state is: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to a fully retracted state, and the lower electric rolling device is not working;The switching method for this electric roller blind from the third usage state to the second usage state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to the fully retracted state, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to the half-open state; the switching method for this electric roller blind from the third usage state to the fourth usage state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to the fully retracted state, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to the fully open state; the switching method for this electric roller blind from the third usage state to the fifth usage state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to the fully retracted state, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to the fully open state; When the light-blocking area is fully open, the lower electric rolling mechanism is inactive. The switching method from the fourth to the first usage state of the electric roller blind is as follows: the upper electric rolling mechanism is inactive, and the lower electric rolling mechanism rolls the lower light-blocking area of ​​the curtain to a fully retracted state. The switching method from the fourth to the second usage state is as follows: the upper electric rolling mechanism is inactive, and the lower electric rolling mechanism rolls the lower light-blocking area of ​​the curtain to a partially open state. The switching method from the fourth to the third usage state is as follows: the upper electric rolling mechanism rolls the lower light-blocking area of ​​the curtain to a partially open state. When released to the half-open state, the lower electric roller shutter retracts the lower light-blocking area of ​​the curtain to the fully retracted state. The switching method from the fourth to the fifth usage state is as follows: the upper electric roller shutter releases the lower light-blocking area of ​​the curtain to the fully open state, and the lower electric roller shutter retracts the lower light-blocking area of ​​the curtain to the fully retracted state. The switching method from the fifth to the first usage state is as follows: the upper electric roller shutter retracts the upper light-blocking area of ​​the curtain to the fully retracted state, and the lower electric roller shutter does not operate. The switching method from the fifth to the second usage state is as follows. The switching method is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to the fully retracted state, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to the half-open state; the switching method from the fifth usage state to the third usage state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to the half-open state, and the lower electric rolling device does not work; the switching method from the fifth usage state to the fourth usage state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to the fully retracted state, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to the fully open state.

[0016] The electric roller blind also has a sixth operating state; when the electric roller blind is in the sixth operating state, the upper light-blocking area of ​​the curtain is released to a half-open state by the upper electric rolling device, and the lower light-blocking area of ​​the curtain is released to a half-open state by the lower electric rolling device; the switching method of the electric roller blind from the first operating state to the sixth operating state is: the upper electric rolling device releases the upper light-blocking area of ​​the curtain to a half-open state, and the lower electric rolling device releases the upper light-blocking area of ​​the curtain to a half-open state; the switching method of the electric roller blind from the second operating state to the sixth operating state is: the upper electric rolling device releases the upper light-blocking area of ​​the curtain to a half-open state. When the light-blocking area is released to a half-open state, the lower electric rolling device is not activated. The switching method from the third to the sixth usage state of the electric roller blind is as follows: the upper electric rolling device is not activated, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to a half-open state. The switching method from the fourth to the sixth usage state of the electric roller blind is as follows: the upper electric rolling device releases the lower light-blocking area of ​​the curtain to a half-open state, and the lower electric rolling device rolls the lower light-blocking area of ​​the curtain back to a half-open state. The switching method from the fifth to the sixth usage state of the electric roller blind is as follows: the upper electric rolling device... The upper light-blocking area of ​​the curtain is rolled up to a half-open state, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to a half-open state; the switching method for the electric roller blind from the sixth usage state to the first usage state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to a fully rolled-up state, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to a fully rolled-up state; the switching method for the electric roller blind from the sixth usage state to the second usage state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to a fully rolled-up state, and the lower electric rolling device does not operate; the switching method for the electric roller blind from the sixth usage state to the third usage state is as follows: The switching method for the operating state is as follows: the upper electric rolling device is not working, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to the fully retracted state; the switching method for the electric roller blind from the sixth operating state to the fourth operating state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to the fully retracted state, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to the fully open state; the switching method for the electric roller blind from the sixth operating state to the fifth operating state is as follows: the upper electric rolling device releases the upper light-blocking area of ​​the curtain to the fully open state, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to the fully retracted state.

[0017] After adopting the above solution, the curtain fabric of the present invention has an upper shading area and a lower shading area with different shading rates. The upper shading area is wound up and released by the upper electric rolling device, and the lower shading area is wound up and released by the lower electric rolling device. In this way, the present invention can wind up and release the upper shading area and the lower shading area separately, thereby adjusting the shading area and shading effect of the electric roller blind of the present invention and improving the user's flexibility. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 (First usage state).

[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 (Second usage state).

[0020] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 (Third usage state).

[0021] Figure 4 This is a schematic diagram of the structure of the present invention. Figure 4 (Fourth usage state).

[0022] Figure 5 This is a schematic diagram of the structure of the present invention. Figure 5 (Fifth usage state).

[0023] Figure 6 This is a schematic diagram of the structure of the present invention. Figure 6 (Sixth usage state).

[0024] Figure 7 This is a schematic diagram of the structure of the present invention. Figure 7 (Sixth usage state).

[0025] Figure 8 This is a partial structural diagram of the present invention. Figure 1 .

[0026] Figure 9 for Figure 8 Enlarged view of point a.

[0027] Figure 10 This is a partial structural diagram of the present invention. Figure 2 .

[0028] Figure 11 for Figure 10 Enlarged view of point b.

[0029] Figure 12 This is a partial structural diagram of the present invention. Figure 3 .

[0030] Figure 13 This is a partial structural diagram of the present invention. Figure 4 .

[0031] Figure 14 This is a partial structural exploded view of the present invention.

[0032] Figure 15 for Figure 14 Enlarged view of point c.

[0033] Figure 16 for Figure 14 Enlarged view of point d.

[0034] Figure 17 for Figure 14 Enlarged view of point e.

[0035] Label Explanation:

[0036] Upper electric winding and unwinding device 1, upper tubular motor 11,

[0037] Lower electric winding and unwinding device 2,

[0038] Protective box 21, cylinder 211, inlet / outlet channel 2111, bent plate 2112, end cap 212, disassembly / removal opening 2121, connecting hole 2122, disassembly / removal cover 213, rotating shaft 2131, elastic buckle plate 2132, screw 214.

[0039] Lower tubular motor 22, connecting through slot 221, limiting through slot 2211,

[0040] Curtain 3, upper blackout area 301, lower blackout area 302, connecting area 303.

[0041] Guiding reinforcement strip 31, connecting seat 32, limiting strip 321,

[0042] Connecting rope 4. Detailed Implementation

[0043] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0044] like Figures 1 to 17 As shown, this invention discloses an electric roller blind, which includes an upper electric rolling device 1, a lower electric rolling device 2, and a curtain fabric 3. The upper electric rolling device 1 and the lower electric rolling device 2 are arranged vertically, and are respectively connected to the upper and lower sides of the curtain fabric 3. Both the upper and lower electric rolling devices 1 and 2 are used to drive the curtain fabric 3 to roll up and release. The curtain fabric 3 has an upper light-blocking area 301 and a lower light-blocking area 302 that are adjacent to each other. The upper light-blocking area 301 and the lower light-blocking area 302 can be achieved by using different materials and layers (as shown above). The light-blocking area 301 has a single-layer structure, while the lower light-blocking area 302 has a double-layer structure. One layer of the lower light-blocking area 302 is integrally set with one layer of the upper light-blocking area 301. The other layer of the lower light-blocking area 302 can be a completely light-blocking plastic sheet. The light-blocking rate of the upper light-blocking area 301 is lower than that of the lower light-blocking area 302. The upper light-blocking area 301 is wound and unwound by the upper electric winding and unwinding device 1, while the lower light-blocking area 302 is wound and unwound by the lower electric winding and unwinding device 2. The lower light-blocking area 302 can achieve a complete light-blocking effect, while the light-blocking rate of the upper light-blocking area 301 can be half of the light-blocking rate of the lower light-blocking area 302.

[0045] In an embodiment of the present invention, the upper electric winding and unwinding device 1 may include an upper tubular motor 11, which is fixed to the top of the window. The upper side of the curtain 3 is connected to the rotor of the upper tubular motor 11 so that the upper tubular motor 11 can wind and unwind the curtain 3. The lower electric winding and unwinding device 2 can be pulled by the upper electric winding and unwinding device 1 through the curtain 3.

[0046] In an embodiment of the present invention, a connecting area 303 may be formed on the upper side of the curtain fabric 3. The connecting area 303 is connected to the rotor of the upper tubular motor 11. The connecting area 303 is provided with a plurality of rigid guide reinforcing strips 31. Each guide reinforcing strip 31 is spaced apart in the connecting area 303 to ensure that the connecting area 303 can be wound up, and each guide reinforcing strip 31 is arranged parallel to the upper tubular motor 11. The present invention can effectively improve the strength of the connecting area 303 of the curtain fabric 3 through the guide reinforcing strips 31, so that when the upper tubular motor 11 of the upper electric winding and unwinding device 1 winds up the connecting area 303 of the curtain fabric 3, the connecting area 303 of the curtain fabric 3 will not have a deviation problem; after the connecting area 303 of the curtain fabric 3 is stably wound up to the curtain winding and unwinding device, the connecting area 303 of the curtain fabric 3 can guide the rest of the curtain fabric, so that the rest of the curtain fabric 3 can also be stably wound up to the upper tubular motor 11 of the upper electric winding and unwinding device 1; thus, the upper electric winding and unwinding device 1 of the present invention can stably wind up the curtain fabric 3.

[0047] In embodiments of the present invention, each guide reinforcing strip 31 may be equally spaced in the connecting area 303, the spacing D2 between adjacent guide reinforcing strips 31 may be 1±0.5mm, and the width D1 of the guide reinforcing strip 31 may be 2±0.5mm. The guide reinforcing strip 31 may be made of plastic, making it both rigid and lightweight; or it may be made of metal. The guide reinforcing strip 31 may be fixed to the connecting area 303 of the curtain fabric 3 by adhesive bonding or by sewing.

[0048] In an embodiment of the present invention, the connecting area 303 of the curtain 3 can be connected to the upper tubular motor 11 via at least two connecting ropes 4, so that the upper tubular motor 11 applies force to the curtain 3 evenly. The connecting ropes 4 are detachably connected to the connecting area 303 (e.g., by binding ropes or by spring buckles), so that the curtain 3 is detachably connected to the upper electric roll-up device 1, facilitating the subsequent complete removal of the curtain 3 for cleaning.

[0049] In an embodiment of the present invention, the lower electric winding and unwinding device 2 includes a protective box 21 and a lower tubular motor 22 installed in the protective box 21; the rotor of the lower tubular motor 22 has a connecting groove 221 along its axial direction; the protective box 21 has an inlet and outlet groove along its axial direction, and at least one end of the protective box 21 has a disassembly and assembly opening 2121, which communicates with the inlet and outlet groove, and the disassembly and assembly opening 2121 is fitted with a disassembly and assembly cover 213 for opening and closing the disassembly and assembly opening 2121; the curtain 3 moves through the inlet and outlet groove of the protective box 21, and the lower side of the curtain 3 is provided with a connecting seat 32, which slides into the connecting groove 221 of the lower tubular motor 22, and the connecting seat 32 is circumferentially limited and radially limited in the connection groove 221; the present invention is configured such that the curtain 3 and the lower electric winding and unwinding device 2 can be detachably connected, which facilitates the subsequent complete removal of the curtain 3 for cleaning. In this invention, when the curtain 3 is installed with the lower electric winding device 2, firstly, the disassembly opening 2121 of the protective box 21 is opened; then, the connecting seat 32 of the curtain 3 is slidably connected to the connecting groove 221 of the winding device body, and the curtain 3 passes through the inlet and outlet groove 2111 of the protective box 21; after the connecting seat 32 of the curtain 3 is slidably connected to the connecting groove 221 of the winding device body, the disassembly opening 2121 is closed by the disassembly cover 213, thereby preventing the curtain 3 from separating from the lower electric winding device 2. When the curtain fabric 3 is disassembled from the lower electric winding and unwinding device 2, the following steps are taken: First, open the disassembly / reassembly opening 2121 of the protective box 21; then, apply force along the axial direction of the lower electric winding and unwinding device 2 to pull the connecting seat 32 of the curtain fabric 3 out of the connecting slot 221 of the winding and unwinding device body and move the connecting seat 32 out of the protective box 21 from the disassembly / reassembly opening 2121, and move the curtain fabric 3 out of the inlet / outlet slot 2111 of the protective box 21; after the connecting seat 32 and the fabric body of the curtain fabric 3 are completely detached from the lower electric winding and unwinding device 2, the disassembly / reassembly opening 2121 can be closed by the disassembly / reassembly cover 213 to protect the lower tubular motor 22. As can be seen from the foregoing, the disassembly / reassembly operations between the lower electric winding and unwinding device 2 and the curtain fabric 3 of the present invention are very simple and convenient.

[0050] In an embodiment of the present invention, the protective box 21 may include a hollow cylindrical body 211 and two end caps 212 respectively connected to both ends of the cylindrical body 211. The cylindrical body 211 is provided with the inlet and outlet through groove 2111, and one of the two end caps 212 is provided with the disassembly and assembly opening 2121. The end cap 212 and the cylindrical body 211 can be locked together by screws 214. This arrangement facilitates the installation of the lower tubular motor 22.

[0051] In an embodiment of the present invention, the cylindrical body 211 of the protective box 21 may have two opposing curved plates 2112, and the inlet and outlet through groove 2111 is formed between the two curved plates 2112. The surface of the curved plates 2112 is smooth and will not damage the body of the curtain fabric 3.

[0052] In an embodiment of the present invention, one side of the disassembly cover 213 can be pivotally connected to one side of the disassembly opening 2121, and the other side of the disassembly cover 213 is movably fastened to the protective box 21. This simplifies the connection between the disassembly cover 213 and the disassembly opening 2121 and facilitates opening and closing the disassembly opening 2121. The disassembly opening 2121 may have two opposing connecting holes 2122, while the disassembly cover 213 has two rotating shafts 2131 that are respectively inserted into the two connecting holes 2122, thus pivotally connecting the disassembly cover 213 to the disassembly opening 2121. Furthermore, the other side of the disassembly cover 213 may have an elastic buckle plate 2132 that movably fastens to the outer side of the protective box 21. This allows the user to easily apply force to the elastic buckle plate 2132 to release the disassembly cover 213 from the disassembly opening 2121. In addition, when the disassembly cover 213 closes the disassembly opening 2121, the disassembly cover 213 is flush with the end face of the protective box 21 where the disassembly opening 2121 is located, which makes the protective box 21 have good integrity.

[0053] In an embodiment of the present invention, limiting grooves 2211 can be formed on both sides of the connecting groove 221 of the lower tubular motor 22, and the connecting seat 32 is provided with limiting strips 321 that slide in contact with the limiting grooves 2211 on both sides of the connecting groove 221, so that the connecting seat 32 and the connecting groove 221 form a circumferential limiting fit and a radial limiting fit.

[0054] In an embodiment of the present invention, the connecting seat 32 is made of plastic, which makes the connecting seat 32 lightweight and strong; the connecting seat 32 can be used to fix the fabric body of the curtain 3 by means of adhesive or riveting.

[0055] As described above, the curtain 3 of the present invention has an upper shading area 301 and a lower shading area 302 with different shading rates. The upper shading area 301 is wound up and unwound by the upper electric rolling device 1, and the lower shading area 302 is wound up and unwound by the lower electric rolling device 2. In this way, the present invention can wind up and unwound the upper shading area 301 and the lower shading area 302 respectively, thereby adjusting the shading area and shading effect of the electric roller blind of the present invention and improving the user's flexibility.

[0056] The electric roller blind of the present invention has a first usage state, a second usage state, a third usage state, a fourth usage state, a fifth usage state, and a sixth usage state. (Cooperation) Figure 1 As shown, when the electric roller blind of the present invention is in the first use state, the upper light-blocking area 301 and the lower light-blocking area 302 of the curtain 3 are respectively rolled up to the fully rolled-up state by the upper electric rolling device 1 and the lower electric rolling device 2. At this time, the electric roller blind of the present invention does not block light, resulting in good indoor lighting. Figure 2As shown, when the electric roller blind of the present invention is in the second use state, the upper light-blocking area 301 of the curtain 3 is rolled up to the fully rolled-up state by the upper electric rolling device 1, and the lower light-blocking area 302 of the curtain 3 is released to the half-open state by the lower electric rolling device 2. At this time, the electric roller blind of the present invention provides semi-strong light blocking, which is suitable for blocking the light on the upper side of the window during the day when the outdoor light is strong, while ensuring the lighting of the indoor environment. Figure 3 As shown, when the electric roller blind of the present invention is in the third operating state, the upper light-blocking area 301 of the curtain 3 is released to a half-open state by the upper electric rolling device 1, and the lower light-blocking area 302 of the curtain 3 is rolled up to a fully closed state by the lower electric rolling device 2. At this time, the electric roller blind of the present invention provides semi-weak light blocking, which is suitable for blocking the light on the upper side of the window during the day when the outdoor light is weak, while ensuring the lighting of the indoor environment. Figure 4 As shown, when the electric roller blind of the present invention is in the fourth usage state, the upper light-blocking area 301 of the curtain 3 is rolled up to the fully rolled-up state by the upper electric rolling device 1, and the lower light-blocking area 302 of the curtain 3 is released to the fully open state by the lower electric rolling device 2. At this time, the electric roller blind of the present invention provides complete light blocking, which is suitable for blocking the lights outside the window at night and can ensure the lighting and privacy of the indoor environment. Figure 5 As shown, when the electric roller blind of the present invention is in the fifth operating state, the upper light-blocking area 301 of the curtain 3 is released to the fully open state by the upper electric rolling device 1, and the lower light-blocking area 302 of the curtain 3 is rolled up to the fully closed state by the lower electric rolling device 2. At this time, the electric roller blind of the present invention provides complete partial light blocking, which is suitable for blocking outdoor light during the day and ensuring indoor lighting. Figure 6 and Figure 7 As shown, when the electric roller blind of the present invention is in the sixth use state, the upper light-blocking area 301 of the curtain 3 is released to a half-open state by the upper electric rolling device 1, and the lower light-blocking area 302 of the curtain 3 is released to a half-open state by the lower electric rolling device 2. At this time, the electric roller blind of the present invention performs upper light transmission and lower light blocking, which can block outdoor light during the day and ensure indoor lighting and privacy.

[0057] In an embodiment of the present invention, the method for switching the use of the electric roller shutter is as follows:

[0058] The switching method for the electric roller blind from the first use state to the second use state is as follows: the upper electric rolling device 1 does not work, so that the upper light-blocking area 301 of the curtain 3 remains fully retracted, and the lower electric rolling device 2 releases the lower light-blocking area 302 of the curtain 3 to a half-open state.

[0059] The switching method for the electric roller blind from the first use state to the third use state is as follows: the upper electric rolling device 1 releases the upper light-blocking area 301 of the curtain 3 to a half-open state, and the lower electric rolling device 2 does not work, so that the lower light-blocking area 302 of the curtain 3 remains fully retracted.

[0060] The switching method for the electric roller blind from the first use state to the fourth use state is as follows: the upper electric rolling device 1 does not work, so that the upper light-blocking area 301 of the curtain 3 remains fully retracted, and the lower electric rolling device 2 releases the lower light-blocking area 302 of the curtain 3 to the fully open state.

[0061] The switching method for the electric roller blind from the first use state to the fifth use state is as follows: the upper electric rolling device 1 releases the upper light-blocking area 301 of the curtain 3 to the fully open state, and the lower electric rolling device 2 does not work, so that the lower light-blocking area 302 of the curtain 3 remains in the fully retracted state.

[0062] The switching method for the electric roller blind from the first use state to the sixth use state is as follows: the upper electric rolling device 1 releases the upper light-blocking area 301 of the curtain 3 to a half-open state, and the lower electric rolling device 2 releases the upper light-blocking area 301 of the curtain 3 to a half-open state.

[0063] The switching method for the electric roller blind from the second use state to the first use state is as follows: the upper electric rolling device 1 does not work, so that the upper light-blocking area 301 of the curtain 3 remains fully retracted, and the lower electric rolling device 2 rolls up the lower light-blocking area 302 of the curtain 3 to the fully retracted state.

[0064] The switching method for the electric roller blind from the second use state to the third use state is as follows: the upper electric rolling device 1 releases the upper light-blocking area 301 of the curtain 3 to a half-open state, and the lower electric rolling device 2 rolls up the lower light-blocking area 302 of the curtain 3 to a fully rolled-up state.

[0065] The switching method for the electric roller blind from the second use state to the fourth use state is as follows: the upper electric rolling device 1 does not work, so that the upper light-blocking area 301 of the curtain 3 remains fully retracted, and the lower electric rolling device 2 releases the lower light-blocking area 302 of the curtain 3 to the fully open state.

[0066] The switching method for the electric roller blind from the second use state to the fifth use state is as follows: the upper electric rolling device 1 releases the upper light-blocking area 301 of the curtain 3 to the fully open state, and the lower electric rolling device 2 rolls up the lower light-blocking area 302 of the curtain 3 to the fully closed state.

[0067] The switching method for the electric roller blind from the second use state to the sixth use state is as follows: the upper electric rolling device 1 releases the upper light-blocking area 301 of the curtain 3 to a half-open state, and the lower electric rolling device 2 does not work, so that the lower light-blocking area 302 of the curtain 3 remains in a half-open state.

[0068] The switching method for the electric roller blind from the third use state to the first use state is as follows: the upper electric rolling device 1 rolls up the upper light-blocking area 301 of the curtain 3 to the fully rolled-up state, while the lower electric rolling device 2 does not work, so that the lower light-blocking area 302 of the curtain 3 remains in the fully rolled-up state.

[0069] The switching method for the electric roller blind from the third use state to the second use state is as follows: the upper electric rolling device 1 rolls up the upper light-blocking area 301 of the curtain 3 to the fully rolled-up state, and the lower electric rolling device 2 releases the lower light-blocking area 302 of the curtain 3 to the half-open state.

[0070] The switching method for the electric roller blind from the third use state to the fourth use state is as follows: the upper electric rolling device 1 rolls up the upper light-blocking area 301 of the curtain 3 to the fully rolled-up state, and the lower electric rolling device 2 releases the lower light-blocking area 302 of the curtain 3 to the fully opened state.

[0071] The switching method for the electric roller blind from the third use state to the fifth use state is as follows: the upper electric rolling device 1 releases the upper light-blocking area 301 of the curtain 3 to the fully open state, and the lower electric rolling device 2 does not work, so that the lower light-blocking area 302 of the curtain 3 remains in the fully retracted state.

[0072] The switching method for the electric roller blind from the third use state to the sixth use state is as follows: the upper electric rolling device 1 does not work, so that the upper light-blocking area 301 of the curtain 3 remains in a half-open state, and the lower electric rolling device 2 releases the lower light-blocking area 302 of the curtain 3 to a half-open state.

[0073] The switching method for the electric roller blind from the fourth use state to the first use state is as follows: the upper electric rolling device 1 does not work, so that the upper light-blocking area 301 of the curtain 3 remains fully retracted, and the lower electric rolling device 2 rolls up the lower light-blocking area 302 of the curtain 3 to the fully retracted state.

[0074] The switching method for the electric roller blind from the fourth use state to the second use state is as follows: the upper electric rolling device 1 does not work, so that the upper light-blocking area 301 of the curtain 3 remains fully retracted, and the lower electric rolling device 2 rolls up the lower light-blocking area 302 of the curtain 3 to a half-open state.

[0075] The switching method for the electric roller blind from the fourth use state to the third use state is as follows: the upper electric rolling device 1 releases the lower light-blocking area 302 of the curtain 3 to a half-open state, and the lower electric rolling device 2 rolls up the lower light-blocking area 302 of the curtain 3 to a fully rolled-up state.

[0076] The switching method for the electric roller blind from the fourth use state to the fifth use state is as follows: the upper electric rolling device 1 releases the lower light-blocking area 302 of the curtain 3 to the fully open state, and the lower electric rolling device 2 rolls the lower light-blocking area 302 of the curtain 3 to the fully closed state.

[0077] The switching method for the electric roller blind from the fourth use state to the sixth use state is as follows: the upper electric rolling device 1 releases the lower light-blocking area 302 of the curtain 3 to a half-open state, and the lower electric rolling device 2 rolls up the lower light-blocking area 302 of the curtain 3 to a half-open state.

[0078] The switching method for the electric roller blind from the fifth use state to the first use state is as follows: the upper electric rolling device 1 rolls up the upper light-blocking area 301 of the curtain 3 to the fully rolled-up state, while the lower electric rolling device 2 does not work, so that the lower light-blocking area 302 of the curtain 3 remains in the fully rolled-up state.

[0079] The switching method for the electric roller blind from the fifth use state to the second use state is as follows: the upper electric rolling device 1 rolls up the upper light-blocking area 301 of the curtain 3 to the fully rolled-up state, and the lower electric rolling device 2 releases the lower light-blocking area 302 of the curtain 3 to the half-open state.

[0080] The switching method for the electric roller blind from the fifth use state to the third use state is as follows: the upper electric rolling device 1 rolls up the upper light-blocking area 301 of the curtain 3 to a half-open state, and the lower electric rolling device 2 does not work, so that the lower light-blocking area 302 of the curtain 3 remains fully rolled up.

[0081] The switching method for the electric roller blind from the fifth use state to the fourth use state is as follows: the upper electric rolling device 1 rolls up the upper light-blocking area 301 of the curtain 3 to the fully rolled-up state, and the lower electric rolling device 2 releases the lower light-blocking area 302 of the curtain 3 to the fully opened state.

[0082] The switching method for the electric roller blind from the fifth use state to the sixth use state is as follows: the upper electric rolling device 1 rolls up the upper light-blocking area 301 of the curtain 3 to a half-open state, and the lower electric rolling device 2 releases the lower light-blocking area 302 of the curtain 3 to a half-open state.

[0083] The switching method for the electric roller blind from the sixth use state to the first use state is as follows: the upper electric rolling device 1 rolls up the upper light-blocking area 301 of the curtain 3 to the fully rolled-up state, and the lower electric rolling device 2 rolls up the lower light-blocking area 302 of the curtain 3 to the fully rolled-up state.

[0084] The switching method for the electric roller blind from the sixth use state to the second use state is as follows: the upper electric rolling device 1 rolls up the upper light-blocking area 301 of the curtain 3 to the fully rolled-up state, and the lower electric rolling device 2 does not work, so that the lower light-blocking area 302 of the curtain 3 remains in the half-open state.

[0085] The switching method for the electric roller blind from the sixth usage state to the third usage state is as follows: the upper electric rolling device 1 is not working, and the lower electric rolling device 2 rolls up the lower light-blocking area 302 of the curtain 3 to the fully rolled-up state.

[0086] The switching method for the electric roller blind from the sixth use state to the fourth use state is as follows: the upper electric rolling device 1 rolls up the upper light-blocking area 301 of the curtain 3 to the fully rolled-up state, and the lower electric rolling device 2 releases the lower light-blocking area 302 of the curtain 3 to the fully opened state.

[0087] The switching method for the electric roller blind from the sixth usage state to the fifth usage state is as follows: the upper electric rolling device 1 releases the upper light-blocking area 301 of the curtain 3 to the fully open state, and the lower electric rolling device 2 rolls up the lower light-blocking area 302 of the curtain 3 to the fully closed state.

[0088] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. An electric roller blind, characterized in that: Includes an upper electric winding and unwinding device, a lower electric winding and unwinding device, and a curtain fabric; The upper and lower electric winding and unwinding devices are set up separately, and are connected to the upper and lower sides of the curtain respectively. Both devices are used to drive the curtain to wind up and unwind. The upper electric winding and unwinding device includes an upper tubular motor. A connecting area is formed on the upper side of the curtain. The connecting area is connected to the rotor of the upper tubular motor. The connecting area is provided with several rigid guide reinforcing strips. Each guide reinforcing strip is spaced apart in the connecting area and is parallel to the upper tubular motor. The curtain has an upper shading area and a lower shading area that are adjacent to each other. The shading rate of the upper shading area is lower than that of the lower shading area.

2. The electric roller blind as described in claim 1, characterized in that: The guide reinforcement strip is made of plastic or metal; the guide reinforcement strip is bonded to the connecting area or sewn together with stitches.

3. The electric roller blind as described in claim 1, characterized in that: The connecting area of ​​the curtain is connected to the upper tubular motor via at least two connecting ropes, and the connecting ropes are detachably connected to the connecting area.

4. The electric roller blind as described in claim 1, characterized in that: The lower electric winding and unwinding device includes a protective box and a lower tubular motor installed in the protective box; the rotor of the lower tubular motor has a connecting slot along its axial direction; the protective box has an inlet and outlet slot along its axial direction, and at least one end of the protective box has a disassembly and assembly opening, which communicates with the inlet and outlet slot, and the disassembly and assembly opening is fitted with a disassembly and assembly cover for opening and closing the disassembly and assembly opening. The curtain moves through the inlet and outlet slot of the protective box. A connecting seat is provided on the lower side of the curtain. The connecting seat slides into the connecting slot of the lower tubular motor. The connecting seat and the connecting slot are circumferentially and radially limited.

5. The electric roller blind as described in claim 4, characterized in that: The protective box has two opposing curved plates, and the inlet / outlet slot is formed between the two curved plates.

6. The electric roller blind as described in claim 4, characterized in that: One side of the disassembly cover is pivotally connected to one side of the disassembly opening, and the other side of the disassembly cover is movably fastened to the protective box.

7. The electric roller blind as described in claim 4, characterized in that: When the disassembly cover closes the disassembly opening, the disassembly cover is flush with the end face of the protective box that has the disassembly opening.

8. A method for switching the usage state of an electric roller shutter as described in claim 1, characterized in that: The electric roller blind has five operating states: a first operating state, a second operating state, a third operating state, a fourth operating state, and a fifth operating state. In the first operating state, the upper and lower light-blocking areas of the curtain are fully rolled up by the upper and lower electric rolling devices, respectively. In the second operating state, the upper light-blocking area of ​​the curtain is fully rolled up by the upper electric rolling device, and the lower light-blocking area is released to a half-open state by the lower electric rolling device. In the third operating state… When the electric roller blind is in its fourth operating state, the upper light-blocking area of ​​the curtain is released to a half-open state by the upper electric rolling device, and the lower light-blocking area of ​​the curtain is rolled up to a fully retracted state by the lower electric rolling device. The switching method for the electric roller blind from the first use state to the second use state is as follows: the upper electric rolling device is not working, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to a half-open state. The switching method for the electric roller blind from the first use state to the third use state is as follows: the upper electric rolling device releases the upper light-blocking area of ​​the curtain to a half-open state, and the lower electric rolling device does not work. The switching method for the electric roller blind from the first use state to the fourth use state is as follows: the upper electric rolling device is not working, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to the fully open state. The switching method for the electric roller blind from the first use state to the fifth use state is as follows: the upper electric rolling device releases the upper light-blocking area of ​​the curtain to the fully open state, and the lower electric rolling device does not work. The switching method for the electric roller blind from the second use state to the first use state is as follows: the upper electric rolling device is not working, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to the fully rolled-up state. The switching method for the electric roller blind from the second use state to the third use state is as follows: the upper electric rolling device releases the upper light-blocking area of ​​the curtain to a half-open state, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to a fully retracted state. The switching method for the electric roller blind from the second use state to the fourth use state is as follows: the upper electric rolling device is not working, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to the fully open state. The switching method for the electric roller blind from the second use state to the fifth use state is as follows: the upper electric rolling device releases the upper light-blocking area of ​​the curtain to the fully open state, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to the fully closed state. The switching method for the electric roller blind from the third use state to the first use state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to the fully rolled-up state, and the lower electric rolling device does not work. The switching method for the electric roller blind from the third use state to the second use state is as follows: the upper electric rolling device rolls up the upper shading area of ​​the curtain to the fully rolled-up state, and the lower electric rolling device releases the lower shading area of ​​the curtain to the half-open state. The switching method for the electric roller blind from the third to the fourth use state is as follows: the upper electric rolling device rolls up the upper shading area of ​​the curtain to the fully rolled-up state, and the lower electric rolling device releases the lower shading area of ​​the curtain to the fully opened state. The switching method for the electric roller blind from the third to the fifth use state is as follows: the upper electric rolling device releases the upper light-blocking area of ​​the curtain to the fully open state, and the lower electric rolling device does not work. The switching method for the electric roller blind from the fourth usage state to the first usage state is as follows: the upper electric rolling device is not working, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to the fully rolled-up state. The switching method for the electric roller blind from the fourth usage state to the second usage state is as follows: the upper electric rolling device is not working, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to a half-open state. The switching method for the electric roller blind from the fourth use state to the third use state is as follows: the upper electric rolling device releases the lower light-blocking area of ​​the curtain to a half-open state, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to a fully retracted state. The switching method for the electric roller blind from the fourth usage state to the fifth usage state is as follows: the upper electric rolling device releases the lower light-blocking area of ​​the curtain to the fully open state, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to the fully closed state. The switching method for the electric roller blind from the fifth usage state to the first usage state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to the fully rolled-up state, and the lower electric rolling device does not work. The switching method for the electric roller blind from the fifth use state to the second use state is as follows: the upper electric rolling device rolls up the upper shading area of ​​the curtain to the fully rolled-up state, and the lower electric rolling device releases the lower shading area of ​​the curtain to the half-open state. The switching method for the electric roller blind from the fifth usage state to the third usage state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to a half-open state, and the lower electric rolling device does not work. The switching method for the electric roller blind from the fifth usage state to the fourth usage state is as follows: the upper electric rolling device rolls up the upper shading area of ​​the curtain to the fully rolled-up state, and the lower electric rolling device releases the lower shading area of ​​the curtain to the fully opened state.

9. The method for switching the usage state of an electric roller shutter as described in claim 8, characterized in that: The electric roller blind also has a sixth operating state; when the electric roller blind is in the sixth operating state, the upper light-blocking area of ​​the curtain is released to a half-open state by the upper electric rolling device, and the lower light-blocking area of ​​the curtain is released to a half-open state by the lower electric rolling device. The switching method for the electric roller blind from the first use state to the sixth use state is as follows: the upper electric rolling device releases the upper light-blocking area of ​​the curtain to a half-open state, and the lower electric rolling device releases the upper light-blocking area of ​​the curtain to a half-open state. The switching method for the electric roller blind from the second use state to the sixth use state is as follows: the upper electric rolling device releases the upper light-blocking area of ​​the curtain to a half-open state, and the lower electric rolling device does not work. The switching method for the electric roller blind from the third to the sixth use state is as follows: the upper electric rolling device is not working, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to a half-open state. The switching method for the electric roller blind from the fourth usage state to the sixth usage state is as follows: the upper electric rolling device releases the lower light-blocking area of ​​the curtain to a half-open state, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to a half-open state. The switching method for the electric roller blind from the fifth to the sixth use state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to a half-open state, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to a half-open state. The switching method for the electric roller blind from the sixth use state to the first use state is as follows: the upper electric rolling device rolls up the upper shading area of ​​the curtain to the fully rolled-up state, and the lower electric rolling device rolls up the lower shading area of ​​the curtain to the fully rolled-up state. The switching method for the electric roller blind from the sixth usage state to the second usage state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to the fully rolled-up state, and the lower electric rolling device does not work. The switching method for the electric roller blind from the sixth usage state to the third usage state is as follows: the upper electric rolling device is not working, and the lower electric rolling device rolls up the lower light-blocking area of ​​the curtain to the fully rolled-up state. The switching method for the electric roller blind from the sixth usage state to the fourth usage state is as follows: the upper electric rolling device rolls up the upper light-blocking area of ​​the curtain to the fully rolled-up state, and the lower electric rolling device releases the lower light-blocking area of ​​the curtain to the fully opened state. The switching method for the electric roller blind from the sixth usage state to the fifth usage state is as follows: the upper electric rolling device releases the upper shading area of ​​the curtain to the fully open state, and the lower electric rolling device rolls up the lower shading area of ​​the curtain to the fully closed state.

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