Electric folding door and window

Abstract

The present invention relates to the technical field of doors and windows, and specifically to an electric folding door and window, comprising a window frame, and an upper window sash and a lower window sash in the window frame, wherein the top of the upper window sash is hinged to the upper part of the window frame; the top of the lower window sash is hinged to the bottom of the upper window sash, and the bottom is vertically slidably arranged on the window frame, and a driving device is fixedly arranged in the lower sash frame of the lower window sash, and the driving device has a transmission shaft driven by a lifting motor, the transmission shaft is horizontally arranged, and the two ends respectively extend out of the two opposite side surfaces of the lower window sash and are respectively fixed with a gear, and racks are respectively fixed on the left and right inner walls of the window frame, and the gears and the racks are meshed with each other, and the lifting motor can drive the lower window sash to slide up and down along the slide rail of the window frame, thereby realizing the opening or closing of the lower window sash; in the electric folding door and window provided by the present invention, the driving device is arranged on the movable window sash and can move up and down with the movable window sash, and the movable window sash can be moved to a suitable position for maintenance, which is convenient for maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of doors and windows, in particular to an electric folding door and window. Background Art

[0002] Folding doors and windows are opened by pulling up and down, with an angle formed between two adjacent window sashes / door sashes, and can be suspended at any position, which has the advantages of good ventilation, good air tightness, no space occupation, and easy cleaning. In particular, the two-way folding doors and windows can be opened and closed by electric means, which can further improve the portability of the folding doors and windows.

[0003] Chinese invention patent CN 102052039A discloses a lifting folding window with electric and manual non-interference, including a folding door panel installed on a door frame, a door lock, a door lock operating mechanism, an electric mechanism and a control circuit. The electric mechanism is mainly composed of a motor, an electromagnetic clutch, a counterweight, a rotating wheel and an open-loop belt rope. The rotating wheel is installed in the upper corner area of ​​the door frame. The open-loop belt rope passes around the rotating wheel to form an anti-slip transmission match. One end of the open-loop belt rope is connected to the driving point of the folding door panel, and the other end is connected to the counterweight. The motor is connected to the rotating wheel through the electromagnetic clutch. The door lock operating mechanism is provided with a manual lock handle and a traction electromagnet. When opening the door, the traction electromagnet coil is first connected to open the door lock, and then the electromagnetic clutch coil is connected to engage the clutch, and finally the motor rotates forward to open the door and window; when closing the door, the clutch is first engaged, and then the motor reverses to close the door and window. However, this solution has the following problems: the electric mechanism is arranged in the upper frame of the window frame, which is inconvenient to install and maintain. For this reason, it is necessary to improve the existing electric folding doors and windows to simplify the structure and improve the convenience of use and maintenance. Summary of the invention

[0004] In order to overcome the defects in the prior art, the task of the present invention is to provide an electric folding door and window with a simple structure and convenient installation and maintenance.

[0005] The task of the present invention is achieved through the following technical solutions:

[0006] An electric folding door and window comprises a window frame / door frame fixed on a wall, and an upper window sash and a lower window sash in the window frame / door frame, wherein the top of the upper window sash is hinged to the upper outer side of the window frame / door frame; the top of the lower window sash is hinged to the bottom of the upper window sash, and the bottom is vertically slidably arranged on the window frame / door frame; a driving device is fixedly arranged in the lower sash frame / door frame of the lower window sash, and the driving device has a transmission shaft driven by a lifting motor, the transmission shaft is horizontally arranged, and the two ends respectively extend out of the two opposite side surfaces of the lower window sash and are respectively fixed with a gear, and racks are respectively fixed on the left and right inner walls of the window frame / door frame, and the gear and the rack are meshed with each other. With the rotation of the lifting motor, under the interaction of the gear and the rack, the lower window sash is driven to slide up and down along the slide rail on the inner side surface of the window frame / door frame, thereby pushing out or retracting the lower frame of the upper window sash, and the upper window sash and the lower window sash are angled to realize the opening or closing of the lower window sash.

[0007] As a preferred technical solution, the driving device includes a lifting motor, a planetary reducer, an automatic clutch and an output gear box connected in series in sequence.

[0008] As a preferred technical solution, a first fixing plate is fixed to the outer end of the lifting motor, and a second fixing plate is provided at the outer end of the output gear box. The second fixing plate also serves as an outer end cover of the output gear box. The driving device can be fixed in the upper sash frame or the lower sash frame of the lower window sash through the first fixing plate and the second fixing plate.

[0009] As a preferred technical solution, the planetary reducer includes a first housing, in which a planetary reduction mechanism is provided, the planetary gear reduction mechanism and the automatic clutch are respectively arranged at the two ends of the inner cavity of the first housing, an end cover is provided at the outer end of the first housing, and the lifting motor is fixed at the outer end of the end cover.

[0010] As a preferred technical solution, the planetary gear reduction mechanism includes a first planet carrier, a second planet carrier and an output planet carrier, the first planet carrier, the second planet carrier and the output planet carrier are coaxially arranged, the input end of the first planet carrier is provided with a first planetary gear, and the axis of the output end is provided with a first sun gear; the input end of the second planet carrier is provided with a second planetary gear, and the axis of the output end is provided with a second sun gear; the input end of the output planet carrier is provided with a third planetary gear, and the output end located at the axis is connected to the automatic clutch, the inner wall of the first housing where the planetary gear reduction mechanism is located is provided with an inner gear ring, and the first planetary gear, the second planetary gear and the third planetary gear are provided with a third planetary gear. The star gears are all meshed with the inner gear ring, the input sun gear is fixed on the transmission shaft of the lifting motor and meshed with the first planetary gear, the first sun gear is meshed with the second planetary gear, the second sun gear is meshed with the third planetary gear, the output gear box includes a second box body, which is provided with a first output gear and a second output gear that mesh with each other, the second box body is fixed to the first box body, the first output gear is connected to the output shaft of the automatic clutch, the axis of the second output gear is provided with a connecting through hole, the transmission shaft is inserted in the connecting through hole and fixed to the second output gear, and the two ends are respectively passed through the second box body and fixed to the gears, and the transmission shaft is located outside the first box body.

[0011] As a preferred technical solution, the automatic clutch includes a clutch plate, a shift block, an output plate, a spherical steel ball and a magnet. A through hole is provided in the center of the clutch plate, and the output shaft of the output planetary carrier passes through the through hole and is fixed to the shift block. The clutch plate and the inner wall of the first housing are interference fit to keep the clutch plate fixed. The output shaft of the output planetary carrier can rotate in the through hole in the center of the clutch plate. Two slide grooves are radially symmetrically provided on the inner end surface of the clutch plate. The cross-section of the slide groove is semicircular and is adapted to the spherical steel ball. The lower end of the slide groove is separated from the through hole in the center of the clutch plate. An axially arranged mounting hole is provided at the lower end of the slide groove. The magnet is fixed in the mounting hole, and the inner end surface is flush with the bottom surface of the slide groove. A spherical steel ball is respectively arranged in each slide groove and can roll along the length direction of the slide groove. When the spherical steel ball slides to the lower end of the slide groove, the magnet fixes it to the lower end of the slide groove by suction.

[0012] As a preferred technical solution, the shift block is in the shape of a sheet as a whole, and its center is fixed to the output shaft of the output planetary carrier and can rotate synchronously with the output planetary carrier. The two are connected by a pin key or a cylindrical hole connection structure. The shift block has a cylindrical center part, and two protrusions protruding radially outward are arranged on the outer circumferential surface of the center part. The two protrusions are symmetrically arranged along the circumferential direction. The outer end of the protrusion is semicircular and smoothly transitioned to the center part through an arc part. The arc part is concave toward the axis of the shift block and is used to push the spherical steel ball to roll along the slide groove; the outer end of the output disk is a circular sleeve, the outer end of which is open, and a plurality of slots are evenly distributed on the inner wall of the circumference. The slots are arranged along the axial direction, and the cross section thereof is substantially the same as that of the output disk. The surface is semicircular and adapted to the spherical steel ball. The inner end of the output disc is closed and a through hole is provided in the center, which is matched and connected with the driving shaft of the first output gear to drive the first output gear to rotate; the shift block and the clutch disc are arranged in a circular sleeve. Through the rotation of the shift block, the arc portion pushes the spherical steel ball to roll along the slide groove, and enter or leave the slot to realize the engagement or disengagement of the shift block and the output disc, thereby realizing the automatic engagement or disengagement between the planetary reducer and the output gear box, realizing the electric and manual operation modes of the folding window. When driven by the lifting motor, the planetary reducer and the output gear box are automatically engaged; after the lifting motor stops, the planetary reducer and the output gear box are automatically disengaged.

[0013] As a preferred technical solution, lifting balancers are respectively provided on the left and right inner sides of the window frame / door frame, and the lower window sash slides up and down along the window frame / door frame through the lifting balancers.

[0014] As a preferred technical solution, the lifting balancer includes a box body and a slider arranged below the box body, and a plurality of groups of coil springs are arranged in the box body; the slider is arranged at the lower end of the box body, and grooves are arranged on the left and right sides of the slider, and a coil spring fixing part is protruding outward from the lower part of the groove, and the coil spring fixing part is in the shape of a square prism, and a coil spring fixing hole is arranged in the upper part of the groove, and each coil spring is pulled downward from the box body, and its end extends out of the box body and overlaps, and a through hole adapted to the coil spring fixing part is arranged on the coil spring, and the end of the coil spring is sleeved on the coil spring fixing part and is connected to the coil spring by a bolt. The spring fixing hole is fixed, and the coil spring is installed on the slider. The bottom end of the groove on the slider is tilted inward to facilitate the end of the coil spring to fit into the groove. The slider is provided with an axial hole, which passes through the front and rear end surfaces of the slider. Bearing seats are respectively provided at both ends of the axial hole. Striped grooves are provided on the inner wall of the bearing seat along the circumferential direction. The inner diameter of the axial hole is smaller than the inner diameter of the bearing seat. The end of the transmission shaft is connected to the axial hole through a bearing, and the bearing is fixed to the bearing seat through the striped groove on the bearing seat, driving the slider to slide, thereby driving the movable window sash to automatically rise and fall, and a buffer groove is provided on the top of the slider.

[0015] As a preferred technical solution, the box body is composed of a lower box body and an upper box body, the lower box body and the upper box body are integrally formed, a plurality of lower shaft seats are arranged in the lower box body, the upper box body can be detachably mounted on the lower box body, an upper fixed shaft matched with the lower shaft seat is arranged on the bottom surface of the upper box body opposite to the lower box body, the upper fixed shaft is inserted in the lower shaft seat to form a coil spring seat, the coil spring is fixed on the coil spring seat, buffer blocks matched with the buffer groove are arranged at both ends of the lower box body and the upper box body, a plurality of limit columns are arranged on the upper box body and the lower box body, and the limit columns, the upper fixed shaft and the lower shaft seat limit each coil spring to a corresponding position.

[0016] Compared with the prior art, the electric folding door and window of the present invention has the following advantages: the driving device is arranged on the movable window sash and can move up and down with the movable window sash. During maintenance, the movable window sash can be moved to a suitable position for easy maintenance; the driving device drives a transmission shaft to rotate and the transmission shaft extends in both directions. The two ends of the transmission shaft can respectively cooperate with the racks in the left and right inner walls of the window frame / door frame through a gear to realize the free lifting and lowering of the movable door and window, and the two sides of the movable door and window are lifted and lowered synchronously, with smooth movement, small friction, simple and efficient, flexible movement, no jamming and delay phenomenon, small space occupation, simple and efficient structure, and cost saving.

[0017] The concept, specific structure and effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a specific embodiment 1 of an electric folding door and window in the present invention;

[0019] Figure 2 is a three-dimensional schematic diagram of the driving device in the present invention;

[0020] Figure 3 It is a schematic diagram of the exploded structure of the driving device in the present invention;

[0021] Figure 4 is a cross-sectional view of the driving device of the present invention;

[0022] Figure 5 It is a schematic diagram of the exploded structure of the planetary reducer, automatic clutch and output gear box in the present invention;

[0023] Figure 6 Schematic diagram of the exploded structure of the automatic clutch in the present invention (forward);

[0024] Figure 7 Schematic diagram of the exploded structure of the automatic clutch in the present invention (reverse);

[0025] Figure 8is a cross-sectional view of the automatic clutch of the present invention;

[0026] Fig. 9 It is a schematic diagram of the shift block and the clutch plate in the present invention;

[0027] Fig.10 It is a schematic diagram of the shift block and the output disk in the present invention;

[0028] Fig.11 It is a schematic diagram of the present invention when the shifting block contacts the spherical steel ball;

[0029] Fig.12 It is a schematic diagram of the push block in the present invention pushing the spherical steel ball into the card slot;

[0030] Fig.13 It is a schematic diagram of the separation of the shifting block and the spherical steel ball in the present invention;

[0031] Fig.14 It is a schematic diagram of the automatic wire tensioning device in the specific embodiment 2 of the present invention;

[0032] Fig.15 It is a structural schematic diagram of the manual-automatic clutch lock of the present invention;

[0033] Fig.16 It is a schematic diagram of the internal structure of the manual-automatic clutch lock of the present invention;

[0034] Fig.17 for Fig.16 A magnified view of part A in FIG.

[0035] Fig.18 for Fig.16 A magnified view of part B in FIG.

[0036] Fig.19 is a schematic diagram of a second driving mechanism of the present invention;

[0037] Fig. 20 is a schematic diagram of the third driving mechanism in the present invention;

[0038] Fig.21 is a schematic diagram of a first telescopic rod in the present invention;

[0039] Fig. 22 It is a schematic diagram of the unlocking swing tooth of the manual-automatic clutch lock of the present invention being combined with the second driving gear;

[0040] Fig.23 It is a schematic diagram of the unlocking swing tooth and the locking swing tooth of the manual-automatic clutch lock of the present invention when both are disengaged from the second driving gear;

[0041] Fig.24 It is a schematic diagram of the locking swing gear of the manual-automatic clutch lock in the present invention being combined with the second driving gear;

[0042] Fig.25 It is a schematic diagram of a lifting balancer in the present invention;

[0043] Fig.26 It is a schematic diagram of the internal structure of the lifting balancer in the present invention;

[0044] Fig. 27 It is a schematic diagram of a slider of the lifting balancer in the present invention. DETAILED DESCRIPTION

[0045] The present invention provides a manual-automatic clutch lock and a manual-electric integrated folding door and window using the manual-automatic clutch lock, which can realize manual and automatic opening and closing, locking and lifting, and can make the lower window sash move up and down smoothly by pulling the balancer, thereby reducing resistance, being flexible to move, and convenient for maintenance. The present invention is described in detail below in conjunction with the drawings and specific embodiments of the specification. Specific embodiment 1

[0046] like Figure 1 As shown, the manual electric integrated folding door and window provided by the present invention includes a window frame / door frame 10 fixed on the wall, and an upper window sash 21 and a lower window sash 20 in the window frame / door frame 10, the top of the upper window sash 21 is hinged to the upper outer side of the window frame / door frame 10; the top of the lower window sash 20 is hinged to the bottom of the upper window sash 21, and the bottom is vertically slidably arranged on the window frame / door frame 10.

[0047] A driving device 30 is fixedly provided in the lower sash frame / door frame of the lower window sash 20. The driving device 30 has a transmission shaft 40 driven by a lifting motor. The transmission shaft 40 is horizontally arranged, and the two ends extend out of the two opposite sides of the lower window sash 20 and are respectively fixed with a gear 50. Racks 60 are respectively fixed on the left and right inner walls of the window frame / door frame 10. The gear 50 and the rack 60 are meshed with each other. As the lifting motor rotates, under the interaction of the gear 50 and the rack 60, the lower window sash 20 is driven to slide up and down along the slide rail on the inner side of the window frame / door frame 10, thereby pushing out or retracting the lower frame of the upper window sash 21. The upper window sash 21 and the lower window sash 20 are at an angle to achieve the opening or closing of the lower window sash 20.

[0048] The present invention improves the design of the driving device 30, which has an automatic clutch function, can automatically switch between electric and manual, and realizes double-side output by using a lifting motor. In addition, lifting balancers 80 are respectively provided on the left and right inner sides of the window frame / door frame 10, and the lower window sash 20 slides up and down along the window frame / door frame 10 through the lifting balancer 80, which can adapt to lower window sashes 20 of various weights, so as to ensure the use of a lifting motor with relatively low power, and can be suspended at any position.

[0049] like Figure 2 , Figure 3 As shown, the driving device 30 includes a lifting motor 31, a planetary reducer 32, an automatic clutch 33 and an output gear box 34 which are connected in series in sequence.

[0050] A first fixing plate 35 is fixedly disposed at the outer end of the lifting motor 31, and a second fixing plate 36 is disposed at the outer end of the output gear box 34. The second fixing plate 36 also serves as an outer end cover of the output gear box 34. The driving device 30 can be fixed in the upper sash frame or the lower sash frame of the lower window sash 20 through the first fixing plate 35 and the second fixing plate 36.

[0051] like Figure 4 , Figure 5 As shown, the planetary reducer 32 includes a first housing 321, and the planetary gear reduction mechanism and the automatic clutch 33 are respectively arranged at two ends of the inner cavity of the first housing 321. The outer end of the first housing 321 is provided with an end cover 323, and the lifting motor 31 is fixed to the outer end of the end cover 323.

[0052] The planetary gear reduction mechanism includes a first planet carrier 3211 , a second planet carrier 3212 and an output planet carrier 3213 , and the first planet carrier 3211 , the second planet carrier 3212 and the output planet carrier 3213 are coaxially arranged.

[0053] The input end of the first planetary carrier 3211 is provided with a first planetary gear 3214, and the axis of the output end is provided with a first sun gear 3215; the input end of the second planetary carrier 3212 is provided with a second planetary gear 3216, and the axis of the output end is provided with a second sun gear 3217; the input end of the output planetary carrier 3213 is provided with a third planetary gear 3218, and the output end located at the axis is connected to the automatic clutch 33.

[0054] An inner ring gear is provided on the inner wall of the first box body 321 where the planetary gear reduction mechanism is located, and the first planetary gear 3214, the second planetary gear 3216 and the third planetary gear 3218 are all meshed with the inner ring gear. The input sun gear 3220 is fixed on the transmission shaft of the lifting motor 31 and meshed with the first planetary gear 3214, the first sun gear 3215 is meshed with the second planetary gear 3216, and the second sun gear 3217 is meshed with the third planetary gear 3218.

[0055] The output gearbox 34 includes a second housing 341, in which a first output gear 3221 and a second output gear 3222 are meshed with each other, and the second housing 341 is fixed to the first housing 321. The first output gear 3221 is connected to the output shaft of the automatic clutch 33, and the axis of the second output gear 3222 is provided with a connecting through hole, and the transmission shaft 40 is inserted into the connecting through hole and fixed to the second output gear 3222, and the two ends are respectively passed through the second housing 341 and fixed to the gear 50. The transmission shaft 40 is located outside the first housing 321.

[0056] The transmission shaft 40 and the second output gear 3222 may cooperate with each other in the form of a spline or a prism + cylindrical hole, so as to form a structure in which the transmission shaft 40 can be driven by the second output gear 3222 to rotate and move axially.

[0057] like Figure 6 , 7 As shown in , 8 , the automatic clutch 33 includes a clutch disc 331 , a shift block 332 , an output disc 333 , a spherical steel ball 334 and a magnet 335 .

[0058] In the following description of the automatic clutch, the axial inner end (inside) refers to the end axially facing the output gearbox, and the axial outer end (outside) refers to the end facing the planetary reducer. The lower end refers to the end radially facing the axis center, and the upper end refers to the end away from the axis center.

[0059] The clutch disc 331 is provided with a through hole at its center, through which the output shaft of the output planet carrier 3213 passes and is fixed to the shift block 332. The clutch disc 331 and the inner wall of the first housing 321 are interference-fitted to keep the clutch disc 331 fixed, and the output shaft of the output planet carrier 3213 can rotate in the through hole at the center of the clutch disc 331. Two slide grooves 336 are radially symmetrically provided on the inner end surface (the end facing the output gear box) of the clutch disc 331. The cross section of the slide groove 336 is semicircular and matches the spherical steel ball 334. The lower end of the slide groove 336 (the end facing the axis) is separated from the through hole at the center of the clutch disc 331 (that is, the slide groove 336 is not connected to the through hole). The lower end of the slide groove 336 is provided with an axially arranged mounting hole, and the magnet 335 is fixed in the mounting hole. The inner end surface is flush with the bottom surface of the slide groove 336, and does not affect the rolling of the spherical steel ball 334 along the slide groove 336. A spherical steel ball 334 is respectively arranged in each slide groove 336 and can roll (slide) along the length direction of the slide groove 336. When the spherical steel ball 334 slides to the lower end of the slide groove 336, the magnet 335 fixes it at the lower end of the slide groove 336 through suction.

[0060] like Fig. 9 , Fig.10 As shown, the shift block 332 is in the shape of a sheet as a whole, and its center is fixed to the output shaft of the output planet carrier 3213, and can rotate synchronously with the output planet carrier 3213, and the two can be connected by a pin key, a cylindrical hole or the like. The shift block 332 has a cylindrical center portion 3321, and two protrusions 3322 protruding radially outward are arranged on the outer circumferential surface of the center portion 3321, and the two protrusions 3322 are symmetrically arranged along the circumferential direction, and the outer end of the protrusion 3322 is semicircular and smoothly transitionally connected to the center portion 3321 through the arc portion 3323. The arc portion 3323 is concave toward the axis of the shift block 332, and is used to push the spherical steel ball 334 to roll along the slide groove 336.

[0061] The outer end of the output disc 333 (the end facing the planetary reducer) is a circular sleeve, which is open at the outer end and has multiple slots 3331 evenly distributed on the inner wall of the circle. The slots 3331 are arranged along the axial direction, and their cross-sections are semicircular and fit the spherical steel balls 334. The inner end of the output disc 333 is closed, and a through hole is provided in the center, which is matched and connected with the driving shaft 3223 of the first output gear 3221, driving the first output gear 3221 to rotate.

[0062] The shift block 332 and the clutch plate 331 are arranged in a circular sleeve. Through the rotation of the shift block 332, the arc portion 3323 pushes the spherical steel ball 334 to roll along the slide groove 336, and is engaged in or out of the engagement groove 3331, so as to realize the engagement or disengagement between the shift block 332 and the output plate 333. Thus, the automatic engagement or disengagement between the planetary reducer and the output gear box is realized, and the electric and manual operation modes of the folding window are realized. When the lifting motor is used for driving, the planetary reducer and the output gear box are automatically engaged; after the lifting motor stops, the planetary reducer and the output gear box are automatically disengaged.

[0063] The following takes electric lifting as an example (the lifting motor rotates clockwise) and combines Figure 11-13 The working process and working principle of the automatic clutch are introduced in detail.

[0064] In the scheme of the present invention, the controller for starting or stopping the lifting motor can be fixed on the window frame / door frame in a wired manner; it can also be controlled by APP remote IoT control, Bluetooth remote control, various sensor controls such as wind, rain, smoke, temperature, etc., fixed box control and handheld remote control.

[0065] Press the lifting switch on the controller, the lifting motor starts, and after being decelerated by the planetary reducer, the output shaft of the output planetary carrier 3213 drives the shift block 332 to rotate clockwise until the arc portion 3323 on the shift block 332 contacts the spherical steel ball 334. Fig.11 shown.

[0066] The lifting motor continues to rotate, and the spherical steel ball 334, pushed by the arc portion 3323, overcomes the suction force of the magnet 335 and disengages from it, and continues to move upward (radially outward) along the slide groove 336 under the push of the arc portion 3323. Finally, the upper half of the spherical steel ball 334 is stuck in the groove 3331 on the inner wall of the output disk 333, and the lower half is located at the upper end of the arc portion 3323. Fig.12 As shown, under the driving force of the rotation of the shifting block 332, the spherical steel ball 334 drives the output disc 333 to rotate along with the shifting block 332, thus realizing the combination of the planetary reducer and the output gear box.

[0067] When the stop switch on the controller is pressed or the lifting switch is released, the lifting motor is first controlled to reverse for a period of time and then stop. The lifting motor reverses to make the shift block 332 reverse a certain angle, such as 20-30 degrees counterclockwise, so that the arc portion 3323 is disengaged from the spherical steel ball 334. At this time, the thrust applied by the arc portion 3323 to the spherical steel ball 334 disappears, so that under the suction force of the magnet 335, the spherical steel ball 334 moves downward (rolls) along the slide groove 336, and is finally fixed at the lower end of the slide groove 336 by the magnetic force. Fig.13 As shown. The planetary reducer is disengaged from the output gear box. At this time, the output disc 333 can rotate freely. Therefore, when the operator manually raises or lowers the folding window, the transmission shaft 40 can drive the second and first output gears in the output gear box to rotate without transmitting the driving force to the planetary reducer and the lifting motor, and the lifting can be manually operated at will.

[0068] To disengage the clutch, the time for the lifting motor to reverse can be determined according to the reduction ratio of the planetary reducer and the angle at which the shifting block 332 disengages the spherical steel ball 334 .

[0069] In the above solution, there are two slide grooves 336 on the clutch plate and two spherical steel balls 334 and protrusions 3322 that cooperate therewith. In practical applications, the specific number is not limited to two, and there may be only one or more than two.

[0070] The lifting motor 31 is powered by an external power source, and for this purpose, a power interface is provided on the window frame / door frame 10, and the power interface is connected to the lifting motor 31 through a wire. If maintenance is convenient, the power interface can be set on the lower frame; if rainwater penetration is considered, the power interface can be set on the upper frame of the window frame / door frame 10; the power interface can also be set on the side frame of the window frame / door frame 10.

[0071] The rack 60 may also be in the form of an elastic annular toothed belt.

[0072] The invention realizes automatic connection and disconnection of the reducer and the output gear box through the automatic clutch, can be electrically driven or manually operated, and is easy to use.

[0073] The present invention realizes that a lifting motor drives the transmission shaft to extend in both directions through a lifting motor and a reduction box, and drives the lower window sash to slide up and down in cooperation with the gear rack, with smooth movement, small friction, flexible movement, no jamming phenomenon, and cost saving.

[0074] In addition, the driving lifting motor assembly in the present invention is arranged in the lower window sash and can move with the lower window sash. Compared with arranging the lifting motor assembly in the upper frame of the window frame / door frame, it is more convenient to install, maintain and service.

[0075] The automatic clutch provided by the present invention is not limited to the application in the fields of up and down, left and right, and horizontal opening of electric doors and windows, but can also be applied to various fields such as sunshade, curtains, curtain walls, cabinet doors of home appliances and furniture, garages, etc. Specific embodiment 2

[0076] In order to prevent the wires from loosening and getting entangled, the present invention designs an automatic wire tensioning device based on the specific embodiment 1, which is arranged in the upper frame or the lower frame of the window frame / door frame 10.

[0077] like Fig.14 As shown, taking the case of being set in the upper frame of the window frame / door frame 10 as an example, the automatic wire tensioning device includes a spring 71 and a pulley group consisting of a movable pulley 72, a first fixed pulley 73, and a second fixed pulley 74. The first fixed pulley 73 and the second fixed pulley 74 are arranged side by side at the end of the side frame of the window frame / door frame 10. A fixed shaft 75 is arranged in the upper frame or the lower frame, one end of the spring 71 is fixed to the fixed shaft 75, and the other end is fixed to the movable pulley 72. A wire 76 is arranged in the side frame of the side window frame / door frame 10, one end of the wire 76 is connected to the power interface, and the other end is connected to the connection terminal of the lifting motor 31 after passing through the first fixed pulley 73, the movable pulley 72, and the second fixed pulley 74 in sequence.

[0078] When the lower window sash 20 moves downward, the wire 76 pulls the movable pulley 72 to move toward the first fixed pulley 73, and the spring 71 is pulled to store energy, so that the wire 76 remains in a taut state; when the lower window sash 20 moves upward, the spring 71 pulls the movable pulley 72 to move away from the first fixed pulley 73, which also keeps the wire 76 in a taut state. Therefore, no matter whether the lower window sash 20 moves upward or downward, the wire 76 is always in a taut state and will not be loosened or entangled.

[0079] The first fixed pulley 73 and the second fixed pulley 74 may be arranged side by side horizontally, or may be arranged side by side vertically.

[0080] In this embodiment, the wire is always in a tensioned state through the automatic wire tensioning device, so as to prevent the wire from being loosened and entangled, thereby affecting the movement of the lower window sash. Specific embodiment 3

[0081] The present invention makes the weight of the lower window sash 20 uniform by using the lifting balancer 80, and the lower window sash 20 can be suspended at any position. The lifting balancer 80 can adopt the lifting balancer disclosed in CN209742589U and CN109458081A, or other structural forms. After the two ends of the transmission shaft 40 pass through the gear 50, they are fixed to the slider on the lifting balancer. Through the lifting balancer 80, the folding window can be manually raised and lowered with less air force, and a low-power DC motor can be loaded on the window sash.

[0082] like Figure 25-27As shown, the lifting balancer includes a box body 820 and a slider 810 arranged below the box body 820, and a plurality of groups of coil springs 830 are arranged in the box body 820.

[0083] The slider 810 is arranged at the lower end of the box body 820. The left and right sides of the slider 810 are provided with grooves 811. The lower part of the groove 811 is provided with a coil spring fixing part 812 protruding outward. The coil spring fixing part 812 is in the shape of a square prism. The upper part of the groove 811 is provided with a coil spring fixing hole 813. Each coil spring 830 is pulled downward from the box body 820, and its end extends out of the box body 820 and overlaps. The coil spring 830 is provided with a through hole adapted to the coil spring fixing part 812. The end of the coil spring 830 is sleeved on the coil spring fixing part 812 and fixed with the coil spring fixing hole 813 by bolts, so that the coil spring 830 is installed on the slider 810. The bottom end of the groove 811 on the slider 810 is tilted inwardly, so that the end of the coil spring 830 is convenient for fitting the groove 811, and the end of the coil spring 830 is prevented from tilting up to hinder the movement of the movable window sash or scratch the user.

[0084] The slider 810 is provided with an axial hole 814, which passes through the front and rear end surfaces of the slider 810, and bearing seats 8141 are respectively provided at both ends of the axial hole 814. The inner wall of the bearing seat 8141 is provided with striped grooves along the circumference, and the inner diameter of the axial hole 814 is smaller than the inner diameter of the bearing seat 8141. When applied to electric lifting, the driving part of the power motor is connected to the axial hole 814 through the bearing, and the bearing is fixed to the bearing seat 8141 through the striped grooves on the bearing seat 8141, driving the slider 810 to slide, thereby driving the movable window sash to automatically lift. The top of the slider 810 is provided with a buffer groove 815.

[0085] The box body 820 is composed of a lower box body 821 and an upper box body, and the lower box body 821 and the upper box body are integrally formed. A plurality of lower shaft seats 841 are arranged in the lower box body 821, and the upper box body is detachably mounted on the lower box body 821. An upper fixed shaft matching the lower shaft seat 841 is arranged on the bottom surface of the upper box body 822 opposite to the lower box body, and the upper fixed shaft is inserted into the lower shaft seat 841 to form a coil spring seat, and the coil spring 830 is fixed on the coil spring seat. Buffer blocks 823 matching the buffer groove 815 are arranged at both ends of the lower box body 821 and the upper box body. When the slider 810 slides to one end of the box body 820, the buffer block 823 is inserted into the buffer groove 815, which can play a certain buffering role, reduce the collision between the slider 810 and the box body 820, and thus extend the service life of the slider 810 and the box body 820. A plurality of limiting posts 824 are provided on the upper box body 822 and the lower box body. The limiting posts 824, the upper fixed shaft and the lower shaft seat 841 limit each coil spring 830 to a corresponding position, which can effectively prevent the coil spring 830 from moving freely in the box body 820, thereby affecting the use effect.

[0086] The present application scheme utilizes coil springs of different types and quantities so that the coil spring force can ensure the force balance of the movable door / window sash. The springs can be selected according to the actual conditions such as the size and weight of the window sash, thereby further improving flexibility and convenience. No positioning parts are required, thus avoiding problems caused by deformation and aging of the positioning parts. The structure is simpler and the service life is effectively extended.

[0087] In addition, an empty mounting seat is reserved in the lifting balancer. If the initially equipped coil spring cannot meet the balance of the movable door / window sash, it is used to increase the coil spring to increase the pulling force of all coil springs, so as to match the movable door / window sash and ensure that it can hover at any position. Specific embodiment 4

[0088] In order to ensure indoor safety, in this specific embodiment, a manual-automatic clutch lock 100 is provided on the upper frame of the lower window sash 20 .

[0089] Figure 1 The manual-automatic clutch lock 100 is shown to be arranged on the upper frame of the lower window sash 20. The manual-automatic clutch lock 100 has an automatic clutch function, and can be automatically unlocked or locked by controlling the lock motor through a controller, or can be manually unlocked or locked without using a controller. Figure 15-16 , the specific structure and working principle of the manual-automatic clutch lock 100 are described in detail.

[0090] like Fig.15 As shown, the manual-automatic clutch lock 100 includes a lock body 110, an operating handle 120 and a telescopic lock rod 130. The lock body 110 is fixed to the upper frame of the lower window sash 20 through a mounting plate 140. The telescopic lock rod 130 functions as a lock tongue, and an extension rod is connected to the outer end of the telescopic lock rod. The inner side walls of the left and right side frames of the window frame / door frame 10 are respectively provided with lock holes. A lock core is provided in the lock body 110. Under the control of the operating handle 120 or the lock motor, the lock core makes the telescopic lock rod 130 extend or contract to the left and right sides, so that the extension rod is inserted into the lock hole or retracted from the lock hole, thereby achieving locking or unlocking.

[0091] like Fig.16 As shown, the lock core includes a lock motor 150 , a first drive mechanism 160 , a clutch mechanism 170 , a second drive mechanism 180 and a bolt drive mechanism 190 .

[0092] like Fig.17As shown, the first driving mechanism 160 includes a worm 161, a first double gear 162, a second double gear 163 and a third double gear 164. The worm 161 is connected to the output shaft of the lock motor 150, the large gear in the first double gear 162 is meshed with the worm 161, the small gear in the first double gear 162 is meshed with the large gear in the second double gear 163, the small gear in the second double gear 163 is meshed with the large gear in the third double gear 164, and the small gear in the third double gear 164 is used to output rotation to the clutch mechanism 170.

[0093] like Fig.18 and 19 As shown, the clutch mechanism 170 includes a lower gear 171, an upper gear 172, a swing frame 173 and a swing tooth 174. The lower gear 171 is coaxially fixed with the upper gear 172, the lower gear 171 is meshed with the pinion in the third double gear 164, the swing frame 173 is in a broken line shape, the center is fixed on the gear shaft of the upper gear 172, and the two ends are respectively provided with an unlocking swing tooth 174 and a locking swing tooth 175, the upper gear 172 is respectively meshed with the unlocking swing tooth 174 and the locking swing tooth 175, and the unlocking swing tooth 174 and the locking swing tooth 175 are used to clutch with the second driving mechanism 180.

[0094] like Fig.19 As shown, the second driving mechanism 180 includes a first driving gear 181 and a second driving gear 182 , which are meshed with each other and are used to transmit the output rotation of the clutch mechanism 170 to the bolt driving mechanism 190 .

[0095] like Fig. 20 As shown, the bolt drive mechanism 190 includes a third drive gear 191 and a fourth drive gear 192. The fourth drive gear 192 is rotatably disposed in the lock body 110 and cooperates with the third drive gear 191 to drive the telescopic lock rod 130 to extend or retract to both sides. A square hole 193 is provided at the center of the third drive gear 191. The operating handle 120 is inserted and fixed in the square hole 193 for rotating the third drive gear 191. The second drive gear 182 is coaxially fixedly disposed with the third drive gear 191.

[0096] The telescopic locking rod 130 includes a first telescopic locking rod 131 and a second telescopic locking rod 132 , which are respectively disposed on the left and right sides of the lock body 110 .

[0097] like Fig.21 As shown, the inner end of the first telescopic locking rod 131 is bent into a Z shape, including a connecting portion 1312 and an outer end 1313 which are sequentially connected to the inner end 1311, the inner end 1311 and the outer end 1313 are parallel to each other, and a first locking tongue rack is provided on the side of the inner end 1311 facing the third driving gear 191, and a second locking tongue rack is provided on the side of the outer end 1313 facing away from the third driving gear 191.

[0098] The outer end portion 1313 of the first telescopic locking rod 131 is arranged opposite to the inner end portion of the second telescopic locking rod 132, and a third lock tongue rack is provided on the side of the inner end portion of the second telescopic locking rod 132 facing the first telescopic locking rod 131. The fourth driving gear 192 is sandwiched between the outer end portion 1313 of the first telescopic locking rod 131 and the inner end portion of the second telescopic locking rod 132, and is respectively engaged with the second lock tongue tooth and the third lock tongue rack.

[0099] The working process of the manual-automatic clutch lock 100 is as follows:

[0100] (1) Electric unlocking.

[0101] When the unlock button on the controller is pressed, the lock motor 150 starts and rotates forward. With the rotation of the worm 161, the first double gear 162, the second double gear 163 and the third double gear 164 are driven to rotate. The third double gear 164 drives the lower gear 171 and the upper gear 172 to rotate synchronously. Then, the swing frame 173 rotates with the upper gear 172, so that the unlocking swing tooth 174 is engaged with the first driving gear 181, and the locking swing tooth 175 is disengaged from the first driving gear 181. Fig. 22 As shown, the first drive gear 181 is driven to rotate, thereby driving the second drive gear 182 to rotate clockwise. The second drive gear 182 drives the operating handle 120 and the third drive gear 191 to rotate, and the third drive gear 191 drives the first drive rack on the inner end 1311 of the first telescopic lock rod 131 to retract the first telescopic lock rod 131 inwardly; at the same time, the second drive rack on the outer end 1313 of the first telescopic lock rod 131 drives the fourth drive gear 192 to rotate, and the fourth drive gear 192 cooperates with the third drive rack on the inner end of the second telescopic lock rod 132 to drive the second telescopic lock rod 132 to retract inwardly. As a result, the first telescopic lock rod 131 and the second telescopic lock rod 132 are both retracted inwardly, causing the extension rods connected to them to retract inwardly and escape from the lock holes on the inner side walls of the left and right side frames of the window frame / door frame 10, and the manual-automatic clutch lock is opened.

[0102] After the manual clutch lock is opened, the lock motor 150 is reversed by a certain angle, so that the unlocking swing gear 174 and the locking swing gear 175 in the clutch mechanism 170 are disengaged from the first driving gear 181 in the second driving mechanism 180. Fig.23 At this time, the operating handle 120 can be manually rotated to unlock and close the lock.

[0103] (2) Electric locking.

[0104] When the lock button on the controller is pressed, the lock motor 150 starts and reverses, and as the worm 161 rotates, the first double gear 162, the second double gear 163 and the third double gear 164 are driven to rotate, and the third double gear 164 drives the lower gear 171 and the upper gear 172 to rotate synchronously, so that the swing frame 173 rotates with the upper gear 172, so that the unlocking swing tooth 174 is disengaged from the first driving gear 181, and the locking swing tooth 175 is engaged with the first driving gear 181, as shown in FIG. Fig.25 As shown, the first drive gear 181 is driven to rotate, and then the second drive gear 182 is driven to rotate counterclockwise. The second drive gear 181 drives the operating handle 120 and the third drive gear 191 to rotate, and the third drive gear 191 drives the first drive rack on the inner end 1311 of the first telescopic lock rod 131, so that the first telescopic lock rod 131 extends outward; at the same time, the second drive rack on the outer end 1313 of the first telescopic lock rod 131 drives the fourth drive gear 192 to rotate, and the fourth drive gear 192 cooperates with the third drive rack on the inner end of the second telescopic lock rod 132 to drive the second telescopic lock rod 132 to extend outward. As a result, the first telescopic lock rod 131 and the second telescopic lock rod 132 both extend outward, so that the extension rods connected to them extend outward and are inserted into the lock holes on the inner side walls of the left and right side frames of the window frame / door frame 10, and the manual-automatic clutch lock is locked.

[0105] After the manual clutch lock is locked, the lock motor 150 rotates forward a certain angle, so that the unlocking swing gear 174 and the locking swing gear 175 in the clutch mechanism 170 are both disengaged from the second driving gear 182 in the second driving mechanism 180. At this time, the operating handle 120 can be manually rotated to unlock and lock.

[0106] (3) When the lock is manually switched on and off, since the clutch mechanism 170 has been disengaged from the second drive mechanism 180, the first drive gear 181 can be driven to rotate by operating the handle 120, and the subsequent actions are the same as those in (1) and (2) above.

[0107] In the present invention, the folding door and window can automatically open or close the manual-automatic clutch lock when it is electrically controlled.

[0108] (1) When the folding window is in the closed state, the lock is in the locked state. Press the folding window lifting button to first perform the unlocking operation, the lock motor starts, the extension rod is pulled out of the lock hole, the lock motor reverses, and the clutch mechanism 170 is disengaged from the lock tongue driving mechanism 190;

[0109] (2) The lifting motor starts and the window sash is lifted up to the specified position.

[0110] (3) When the folding window is in the open state, the lock is in the open state. Press the folding window lowering button, the lifting motor starts, and the lower window sash is pulled down. When the lower window sash is lowered into place, the lock motor starts, so that the extension rod extends into the lock hole, and then the lock motor reverses, and the clutch mechanism 170 is disengaged from the lock tongue driving mechanism 190.

[0111] Compared with the prior art, the present invention has the following advantages:

[0112] (1) The drive device has an automatic clutch function, which can automatically switch between electric and manual operation;

[0113] (2) The driving device adopts the form of a two-way transmission shaft, which drives the lower window sash up and down on both sides, with smooth movement, low friction and flexible movement.

[0114] (3) A lifting motor is used to achieve balanced drive output on both sides, thus avoiding the safety hazard of the window sash being broken by strong force due to imbalance on both sides when one of the two motors is damaged while the other motor continues to work, thus saving costs.

[0115] (4) The driving lifting motor assembly is arranged in the lower window sash and can move up and down with the lower window sash, which is convenient for installation and maintenance.

[0116] (5) The weight of the lower window sash is made uniform by lifting the balancer, and a low-power, low-current DC lifting motor can be loaded on the lower window sash. The driving motor clutch can achieve the hovering of the lower window sash at any position.

[0117] (6) The manual-automatic clutch lock has a clutch function and can realize electric and manual switching.

[0118] (7) The clutch adopts a mechanical structure with high stability, does not use electronic components such as electromagnetic switches, has a low failure rate and low maintenance cost.

[0119] (8) This integrated control and drive system is based on safe voltage, low current, and low power DC motors, and realizes APP remote IoT control, Bluetooth remote control, various sensing controls such as wind, rain, smoke, and temperature, fixed box control, and handheld remote control.

[0120] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention.

Claims

1. An electric folding door and window, It is characterized in that The door frame comprises a window frame / door frame fixed to the wall, and an upper window sash and a lower window sash in the window frame / door frame, wherein the top of the upper window sash is hinged to the upper outer side of the window frame / door frame; the top of the lower window sash is hinged to the bottom of the upper window sash, and the bottom is vertically slidably arranged on the window frame / door frame; a driving device is fixedly arranged in the lower sash frame / door frame of the lower window sash, and the driving device has a transmission shaft driven by a lifting motor, the transmission shaft is horizontally arranged, and the two ends respectively extend out of the two opposite side surfaces of the lower window sash and are respectively fixed with a gear, and racks are respectively fixed on the left and right inner walls of the window frame / door frame, and the gears and the racks are meshed with each other, and with the rotation of the lifting motor, under the interaction of the gears and the racks, the lower window sash is driven to slide up and down along the slide rail on the inner side surface of the window frame / door frame, thereby pushing out or retracting the lower frame of the upper window sash, and the upper window sash and the lower window sash are at an angle to realize the opening or closing of the window sash; the left and right inner sides of the window frame / door frame A lifting balancer is also provided on the upper part, and the lower window sash slides up and down along the window frame / door frame through the lifting balancer; the lifting balancer includes a box body and a slider arranged below the box body, and a plurality of groups of coil springs are arranged in the box body; the slider is arranged at the lower end of the box body, and the coil spring is pulled downward from the box body and installed on the slider, and an axial hole is provided on the slider, and the end of the transmission shaft is connected to the axial hole through a bearing; a manual-automatic clutch lock is provided on the upper frame of the lower window sash, and the manual-automatic clutch lock includes a lock body, an operating handle and a telescopic locking rod, the lock body is fixed to the upper frame of the lower window sash through a mounting plate, the outer end of the telescopic locking rod is connected to an extension rod, and lock holes are respectively provided on the inner side walls of the left and right sides of the window frame / door frame, and a lock core is provided in the lock body. Under the control of the operating handle or the lock motor, the lock core makes the telescopic locking rod extend or contract to the left and right sides, so that the extension rod is inserted into the lock hole or retracted from the lock hole, thereby realizing locking or unlocking.

2. The electric folding door and window according to claim 1, It is characterized in that The driving device comprises a lifting motor, a planetary reducer, an automatic clutch and an output gear box which are connected in series in sequence.

3. The electric folding door and window according to claim 2, It is characterized in that A first fixing plate is fixedly disposed at the outer end of the lifting motor, and a second fixing plate is disposed at the outer end of the output gear box. The second fixing plate also serves as an outer end cover of the output gear box. The driving device can be fixed in the upper sash frame or the lower sash frame of the lower window sash through the first fixing plate and the second fixing plate.

4. The electric folding door and window according to claim 2, It is characterized in that The planetary reducer comprises a first housing, a planetary reduction mechanism is arranged inside the planetary reducer, the planetary gear reduction mechanism and the automatic clutch are arranged at two ends of the inner cavity of the first housing respectively, an end cover is arranged at the outer end of the first housing, and the lifting motor is fixed at the outer end of the end cover.

5. The electric folding door and window according to claim 4, It is characterized in that The planetary gear reduction mechanism comprises a first planet carrier, a second planet carrier and an output planet carrier, the first planet carrier, the second planet carrier and the output planet carrier are coaxially arranged, the input end of the first planet carrier is provided with a first planetary gear, and the axis of the output end is provided with a first sun gear; the input end of the second planet carrier is provided with a second planetary gear, and the axis of the output end is provided with a second sun gear; the input end of the output planet carrier is provided with a third planetary gear, and the output end located at the axis is connected to the automatic clutch, an inner gear ring is provided on the inner wall of the first housing where the planetary gear reduction mechanism is located, and the first planetary gear, the second planetary gear and the third planetary gear are all connected to the housing. The inner gear ring is meshed, the input sun gear is fixed on the transmission shaft of the lifting motor and meshes with the first planetary gear, the first sun gear is meshed with the second planetary gear, the second sun gear is meshed with the third planetary gear, the output gear box includes a second box body, which is provided with a first output gear and a second output gear that mesh with each other, the second box body is fixed to the first box body, the first output gear is connected to the output shaft of the automatic clutch, the axis of the second output gear is provided with a connecting through hole, the transmission shaft is inserted in the connecting through hole and fixed to the second output gear, and the two ends are respectively passed through the second box body and fixed to the gears, and the transmission shaft is located outside the first box body.

6. The electric folding door and window according to claim 4, It is characterized in that The automatic clutch comprises a clutch plate, a shift block, an output plate, a spherical steel ball and a magnet. A through hole is provided in the center of the clutch plate, and the output shaft of the output planetary carrier passes through the through hole and is fixed to the shift block. The clutch plate and the inner wall of the first housing are interference fit to keep the clutch plate fixed. The output shaft of the output planetary carrier can rotate in the through hole in the center of the clutch plate. Two slide grooves are radially symmetrically provided on the inner end surface of the clutch plate. The cross-section of the slide groove is semicircular and adapted to the spherical steel ball. The lower end of the slide groove is separated from the through hole in the center of the clutch plate. An axially arranged mounting hole is provided at the lower end of the slide groove. The magnet is fixed in the mounting hole. The inner end surface is flush with the bottom surface of the slide groove. A spherical steel ball is respectively arranged in each slide groove and can roll along the length direction of the slide groove. When the spherical steel ball slides to the lower end of the slide groove, the magnet fixes it to the lower end of the slide groove by suction.

7. The electric folding door and window according to claim 6, It is characterized in that The shifting block is integrally sheet-shaped, and its center is fixed to the output shaft of the output planet carrier and can rotate synchronously with the output planet carrier. The connection between the two is achieved by a pin-key or cylindrical hole connection structure. The shifting block has a cylindrical central part, and two protruding parts protruding radially outward are provided on the outer circumferential surface of the central part. The two protruding parts are symmetrically arranged in the circumferential direction. The outer end of the protruding part is semi-circular and is smoothly connected to the central part through an arc part. The arc part is concave inward towards the axis of the shifting block and is used to push the spherical steel ball to roll along the chute. The outer end of the output disk is a circular sleeve with an open outer end, and a plurality of card slots are evenly arranged on the inner circumferential wall. The card slots are arranged axially, and their cross-sections are semi-circular and are adapted to the spherical steel balls. The inner end of the output disk is closed, and a through hole is provided in the center, which is matched and connected with the drive shaft of the first output gear to drive the first output gear to rotate. The shifting block and the clutch disk are arranged in the circular sleeve. By rotating the shifting block, the arc part pushes the spherical steel ball to roll along the chute, engaging or disengaging from the card slot, realizing the combination or disengagement between the shifting block and the output disk, thereby realizing the automatic combination or disengagement between the planetary reducer and the output gearbox, and realizing two operation modes of electric and manual for the folding window. When the lifting motor is driven, the planetary reducer and the output gearbox are automatically combined; after the lifting motor stops, the planetary reducer and the output gearbox are automatically disengaged.

8. The electric folding door and window according to claim 1, characterized in that, grooves are provided on the left and right sides of the slider. A spring fixing part protruding outward is provided at the lower part of the groove. The spring fixing part is in the shape of a square prism. A spring fixing hole is provided at the upper part of the groove, and their ends coincide after extending out of the box body. A through hole adapted to the spring fixing part is provided on the spring. The end of the spring is sleeved on the spring fixing part and fixed to the spring fixing hole by a bolt. The bottom end of the groove on the slider is inclined inward to facilitate the end of the spring to fit the groove. The shaft hole penetrates the front and rear end faces of the slider. Bearing seats are respectively provided at both ends of the shaft hole. Striped grooves are provided along the circumferential direction on the inner wall of the bearing seat. The inner diameter of the shaft hole is smaller than the inner diameter of the bearing seat. The bearing is fixed to the bearing seat through the striped groove on the bearing seat to drive the slider to slide, thereby driving the movable window sash to automatically lift and lower. A buffer groove is provided at the top of the slider.

9. The electric folding door and window according to claim 8, characterized in that, the box body is composed of a lower box body and an upper box body. The lower box body and the upper box body are integrally formed. A plurality of lower shaft seats are provided in the lower box body. The upper box body is detachably installed on the lower box body. Upper fixing shafts adapted to the lower shaft seats are provided on the bottom surface of the upper box body opposite to the lower box body. The upper fixing shafts are inserted into the lower shaft seats to form spring seats. The springs are fixed on the spring seats. Buffer blocks adapted to the buffer grooves are provided at both ends of the lower box body and the upper box body. A plurality of limit posts are provided on the upper box body and the lower box body. The limit posts, the upper fixing shafts and the lower shaft seats limit each spring in the corresponding position.

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