CN115573645A

CN115573645A - Electric folding door and window

Info

Publication number: CN115573645A
Application number: CN202211089532.8A
Authority: CN
Inventors: 黄海清
Original assignee: Guangzhou Haodi Window And Door Co ltd
Current assignee: Guangzhou Haodi Window And Door Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2023-01-06
Also published as: CN111173410A; CN116816209A; CN116752858A

Abstract

The invention relates to the technical field of doors and windows, in particular to an electric folding door and window, which comprises a window frame, an upper sash and a lower sash, wherein the upper sash and the lower sash are arranged in the window frame; the top of the lower window sash is hinged with the bottom of the upper window sash, the bottom of the lower window sash is vertically and slidably arranged on the window frame, a driving device is fixedly arranged in the lower window sash frame of the lower window sash, the driving device is provided with a transmission shaft driven by a lifting motor, the transmission shaft is horizontally arranged, two end parts of the transmission shaft respectively extend out of two opposite side surfaces of the lower window sash and are respectively fixed with a gear, racks are respectively and fixedly arranged on the left inner side wall and the right inner side wall of the window frame, the gears and the racks are mutually engaged, and the lifting motor can drive the lower window sash to slide up and down along a slide rail of the window frame, so that the lower window sash is opened or closed; according to the electric folding door and window, the driving device is arranged on the movable window sash and can move up and down along with the movable window sash, and the movable window sash can be moved to a proper position for maintenance, so that the electric folding door and window is convenient to maintain.

Description

Electric folding door and window

Technical Field

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

Background

The folding door and window adopts an up-and-down lifting opening mode, an included angle is formed between two adjacent window sashes/door leaves, the folding door and window can hover at any position, and the folding door and window has the advantages of good ventilation effect, good air tightness, no space occupation, convenience in cleaning and the like. Especially, the bidirectional folding door and window can further improve the use portability of the folding door and window by electrically controlling the opening and closing of the folding door and window.

The invention Chinese patent CN 102052039A discloses an electric and manual non-interfering lifting type folding window, which comprises a folding door plate, a door lock operating mechanism, an electric mechanism and a control circuit, wherein the folding door plate, the door lock operating mechanism, the electric mechanism and the control circuit are arranged on a door frame; a manual lock handle and a traction electromagnet are arranged in the door lock operating mechanism; when the door is opened, the traction electromagnet coil is firstly switched on to open the door lock, then the electromagnetic clutch coil is switched on to combine the clutch, and finally the motor rotates forwards to open the door and window; when the door is closed, the clutch is firstly combined, and then the motor rotates reversely 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, and is inconvenient to install and maintain. Therefore, the existing electric folding door and window needs to be improved so as to simplify the structure and improve the convenience of use and maintenance.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide the electric folding door and window which is simple in structure and convenient to install and maintain.

The task of the invention is realized by the following technical scheme:

an electric folding door and window comprises a window frame/door frame fixed on a wall body, 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 on the outer side of the upper part of the window frame/door frame; the top of the lower window sash is hinged with the bottom of the upper window sash, the bottom of the lower window sash is vertically arranged on the window frame/door frame in a sliding manner, a driving device is fixedly arranged in the lower window sash/door frame of the lower window sash, the driving device is provided with a transmission shaft driven by a lifting motor, the transmission shaft is horizontally arranged, two end parts of the transmission shaft respectively extend out of two opposite side surfaces of the lower window sash and are respectively fixed with a gear, racks are respectively fixed on the left inner side wall and the right inner side wall of the window frame/door frame, the gears and the racks are mutually meshed, the lower window sash is driven to slide up and down along a sliding rail on the inner side surface of the window frame/door frame under the interaction of the gears and the racks along with the rotation of the lifting motor, so that the lower frame of the upper window sash is ejected or retracted, and the upper window sash and the lower window sash are in an included angle shape, so as to open or close the lower window sash.

As a preferable technical scheme, the driving device comprises a lifting motor, a planetary reducer, an automatic clutch and an output gear box which are sequentially connected in series.

As a preferred technical scheme, a first fixing plate is fixedly arranged at the outer end of the lifting motor, a second fixing plate is arranged at the outer end of the output gear box, the second fixing plate is simultaneously used as an outer end cover of the output gear box, and the driving device can be fixed in an upper sash frame or a lower sash frame of the lower sash through the first fixing plate and the second fixing plate.

As a preferred technical scheme, the planetary reducer comprises a first box body, a planetary reduction mechanism is arranged in the planetary reducer, the planetary reduction mechanism and the automatic clutch are respectively and oppositely arranged at two ends of an inner cavity of the first box body, an end cover is arranged at the outer end of the first box body, and the lifting motor is fixed at the outer end of the end cover.

As a preferred technical scheme, the planetary gear speed reducing mechanism comprises a first planet carrier, a second planet carrier and an output planet carrier, wherein the first planet carrier, the second planet carrier and the output planet carrier are coaxially arranged, a first planet gear is arranged at the input end of the first planet carrier, and a first sun gear is arranged at the axis of the output end; the input end of the second planet carrier is provided with a second planet wheel, and the axis of the output end is provided with a second sun wheel; the input end of the output planet carrier is provided with a third planet wheel, the output end positioned at the axis is connected with the automatic clutch, the inner wall of the first box body is provided with an inner gear ring, the first planet wheel, the second planet wheel and the third planet wheel are all meshed with the inner gear ring, the input sun wheel is fixed on a transmission shaft of the lifting motor and is meshed with the first planet wheel, the first sun wheel is meshed with the second planet wheel, the second sun wheel is meshed with the third planet wheel, the output gear box comprises a second box body, a first output gear and a second output gear which are mutually meshed are arranged in the second box body, the second box body is fixed with the first box body, the first output gear is connected with 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 into the connecting through hole and fixed with the second output gear, and two ends of the transmission shaft penetrate through the second box body respectively and then are fixed with the gear, and the transmission shaft is positioned outside the first box body.

As a preferred technical scheme, the automatic clutch includes a clutch disc, a shifting block, an output disc, spherical steel balls and magnets, a through hole is formed in the center of the clutch disc, an output shaft of the output planet carrier penetrates through the through hole to be fixed with the shifting block, the clutch disc is in interference fit with the inner wall of the first box body to keep the clutch disc fixed, the output shaft of the output planet carrier can rotate in the through hole in the center of the clutch disc, two sliding grooves are symmetrically formed in the inner end surface of the clutch disc along the radial direction, the cross sections of the sliding grooves are semicircular and are matched with the spherical steel balls, the lower ends of the sliding grooves are separated from the through hole in the center of the clutch disc, an installation hole is formed in the lower ends of the sliding grooves in the axial direction, the magnets are fixed in the installation hole, the inner end surface is flush with the bottom surfaces of the sliding grooves, each sliding groove is internally provided with one spherical steel ball and can roll along the length direction of the sliding groove, and when the spherical steel balls slide to the lower ends of the sliding grooves, the magnets are fixed at the lower ends of the sliding grooves by suction force.

As a preferred technical scheme, the shifting block is integrally flaky, the center of the shifting block is fixed with an output shaft of the output planet carrier and can synchronously rotate along with the output planet carrier, the shifting block and the output planet carrier are connected by adopting a pin key or a cylindrical hole connecting structure, the shifting block is provided with a cylindrical central part, two convex parts which protrude outwards in the radial direction are arranged on the outer circumferential surface of the central part, the two convex parts are symmetrically arranged along the circumferential direction, the outer end parts of the convex parts are semicircular and are in smooth transition connection with the central part through arc parts, and the arc parts are inwards concave towards the axis of the shifting block and are used for pushing the spherical steel balls to roll along the sliding grooves; the outer end of the output disc is a circular sleeve, the outer end of the output disc is open, a plurality of clamping grooves are uniformly distributed on the inner wall of the circumference, the clamping grooves are arranged along the axial direction, the section of each clamping groove is semicircular and matched with the spherical steel balls, the inner end of the output disc is closed, the center of each clamping groove is provided with a through hole, and the clamping grooves are connected with a driving shaft of the first output gear in a matching mode to drive the first output gear to rotate; the shifting block and the clutch disc are arranged in the circular sleeve, the circular arc part pushes the spherical steel ball to roll along the sliding groove and clamp or separate from the clamping groove through the rotation of the shifting block, so that the combination or the separation of the shifting block and the output disc is realized, the automatic combination or the separation between the planetary reducer and the output gear box is realized, the electric operation mode and the manual operation mode of the folding window are realized, and when the lifting motor is used for driving, the planetary reducer and the output gear box are automatically combined; after the lifting motor stops, the planetary reducer and the output gear box are automatically separated.

As a preferable technical scheme, the left inner side face and the right inner side face of the window frame/the door frame are respectively provided with a lifting balancer, and the lower window sash slides up and down along the window frame/the door frame through the lifting balancers.

As a preferred technical scheme, the lifting balancer comprises a box body and a sliding block arranged below the box body, wherein 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, grooves are formed in the left side and the right side of the slider, coil spring fixing parts are arranged on the lower portions of the grooves in an outward protruding mode and are square prisms, coil spring fixing holes are formed in the upper portions of the grooves, each coil spring is pulled out of the box body downwards, the tail end of each coil spring is overlapped after extending out of the box body, through holes matched with the coil spring fixing parts are formed in the coil springs, the tail ends of the coil springs are sleeved on the coil spring fixing parts and are fixed with the coil spring fixing holes through bolts, the coil springs are installed on the slider, and the bottom ends of the grooves in the slider are arranged in an inward inclining mode, so that the tail ends of the coil springs can be attached to the grooves conveniently; be equipped with the shaft hole on the slider, the shaft hole runs through the front and back terminal surface of slider, and the both ends in shaft hole are equipped with the bearing frame respectively, are equipped with the stripe groove along circumference on the inner wall of bearing frame, and the internal diameter in shaft hole is less than the internal diameter of bearing frame, the tip of transmission shaft passes through the bearing and links to each other with the shaft hole, and the bearing passes through the stripe groove on the bearing frame to be fixed with the bearing frame, and the drive slider slides to drive activity casement automatic rising, the top of slider is equipped with the dashpot.

According to the preferable technical scheme, the box body is formed by combining 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 is detachably mounted on the lower box body, upper fixing shafts matched with the lower shaft seats are arranged on the bottom surface, opposite to the lower box body, of the upper box body, the upper fixing shafts are inserted in the lower shaft seats to form coil spring seats, the coil springs are fixed on the coil spring seats, buffer blocks matched with the buffer grooves are arranged at the two ends of the lower box body and the upper box body, a plurality of limiting columns are arranged on the upper box body and the lower box body, and the limiting columns, the upper fixing shafts and the lower shaft seats limit the coil springs at corresponding positions.

Compared with the prior art, the electric folding door and window has the following advantages: the driving device is arranged on the movable window sash and can move up and down along with the movable window sash, and the movable window sash can be moved to a proper position for maintenance so as to be convenient for maintenance; the driving device rotates through driving one transmission shaft, the transmission shaft stretches out in two directions, the two ends of the transmission shaft can be matched with the racks in the left side wall and the right side wall of the window frame/the door frame through one gear respectively, free lifting of the movable door and window is achieved, the two sides of the movable door and window synchronously lift, the movement is stable, the friction force is small, the moving is simple and efficient, the moving is flexible, the clamping stagnation delaying phenomenon cannot occur, the occupied space is small, the structure is simple and efficient, and the cost is saved.

The conception, specific structure and effects of the present invention will be further described in conjunction with the accompanying drawings to fully understand the objects, features and effects of the present invention.

Drawings

Fig. 1 is a schematic perspective view of an electric folding door and window according to an embodiment 1 of the present invention;

FIG. 2 is a perspective view of the driving device of the present invention;

FIG. 3 is an exploded view of the driving device of the present invention;

FIG. 4 is a cross-sectional view of the driving device of the present invention;

FIG. 5 is an exploded view of the planetary reducer, automatic clutch and output gearbox of the present invention;

FIG. 6 is an exploded view (forward direction) of the automatic clutch of the present invention;

FIG. 7 is an exploded view of the automatic clutch of the present invention (reversed);

FIG. 8 is a cross-sectional view of an automatic clutch according to the present invention;

FIG. 9 is a schematic view of the shift block and clutch plate of the present invention;

FIG. 10 is a schematic view of a paddle and output tray of the present invention;

FIG. 11 is a schematic view of the contact between the pusher and the ball-shaped ball according to the present invention;

FIG. 12 is a schematic view of the ball-shaped steel ball pushed by the shifting block to be clamped into the clamping groove in the present invention;

FIG. 13 is a schematic view of the present invention in which the pusher is disengaged from the ball-shaped ball;

FIG. 14 is a schematic view of an automatic wire tensioning device according to embodiment 2 of the present invention;

FIG. 15 is a schematic structural view of the manual-automatic integrated clutch lock of the present invention;

FIG. 16 is a schematic view of an internal structure of the manual-automatic integrated clutch lock of the present invention;

FIG. 17 is an enlarged view of portion A of FIG. 16;

FIG. 18 is an enlarged view of portion B of FIG. 16;

FIG. 19 is a schematic view of a second drive mechanism of the present invention;

FIG. 20 is a schematic view of a third drive mechanism of the present invention;

FIG. 21 is a schematic view of a first telescoping pole of the present invention;

FIG. 22 is a schematic view of the combination of the unlocking pendulum teeth and the second driving gear of the manual-automatic integrated clutch lock of the present invention;

FIG. 23 is a schematic view of the unlocking pendulum teeth and the locking pendulum teeth of the manual-automatic integrated clutch lock of the present invention being disengaged from the second driving gear;

FIG. 24 is a schematic view of the locking swing teeth of the manual-automatic integrated clutch lock in combination with the second driving gear;

FIG. 25 is a schematic view of a lift balancer of the present invention;

FIG. 26 is a schematic view showing an internal structure of a pull balancer in the present invention;

fig. 27 is a schematic view of a slide of the pull-up balancer of the present invention.

Detailed Description

The invention provides a manual-automatic integrated clutch lock and a manual-electric integrated folding door and window using the same, which can realize manual and automatic locking and unlocking and lifting, can ensure that a lower window sash can stably move up and down by lifting a balancer, reduce resistance, move flexibly and are convenient to maintain. The invention is described in detail below with reference to the drawings and the detailed description.

Example 1.

As shown in fig. 1, the manual and electric integrated folding door and window provided by the present invention comprises a window frame/door frame 10 fixed on a wall, and an upper window sash 21 and a lower window sash 20 in the window frame/door frame 10, wherein the top of the upper window sash 21 is hinged to the outer side of the upper part of the window frame/door frame 10; the top of lower sash 20 is hinged to the bottom of upper sash 21, which is vertically slidably arranged on frame/frame 10.

The lower sash frame/door frame of the lower sash 20 is internally and fixedly provided with a driving device 30, the driving device 30 is provided with a transmission shaft 40 driven by a lifting motor, the transmission shaft 40 is horizontally arranged, two end parts of the transmission shaft respectively extend out of two opposite side surfaces of the lower sash 20 and are respectively and fixedly provided with a gear 50, the left inner side wall and the right inner side wall of the window frame/door frame 10 are respectively and fixedly provided with a rack 60, the gear 50 and the rack 60 are mutually meshed, the lower sash 20 is driven to slide up and down along a slide rail on the inner side surface of the window frame/door frame 10 under the interaction of the gear 50 and the rack 60 along with the rotation of the lifting motor, so that the lower frame of the upper sash 21 is ejected or retracted, and the upper sash 21 and the lower sash 20 are in a shape of a corner, so as to realize the opening or closing of the lower sash 20.

The invention improves the design of the driving device 30, the driving device 30 has an automatic clutch function, can automatically realize the automatic switching between electric operation and manual operation, and realizes double-side output by utilizing one lifting motor. In addition, the left and right inner side surfaces of the window frame/door frame 10 are respectively provided with a lifting balancer 80, and the lower window sash 20 can slide up and down along the window frame/door frame 10 through the lifting balancer 80, so that the lower window sash 20 can adapt to lower window sashes 20 with various weights, a lifting motor with smaller power can be used, and the lower window sash can be suspended at any position.

As shown in fig. 2 and 3, the driving device 30 includes a lifting motor 31, a planetary reducer 32, an automatic clutch 33, and an output gearbox 34 connected in series in this order.

The outer end of the lifting motor 31 is fixedly provided with a first fixing plate 35, the outer end of the output gearbox 34 is provided with a second fixing plate 36, the second fixing plate 36 is simultaneously used as an outer end cover of the output gearbox 34, and the driving device 30 can be fixed in the upper sash frame or the lower sash frame of the lower sash 20 through the first fixing plate 35 and the second fixing plate 36.

As shown in fig. 4 and 5, the planetary gear reducer 32 includes a first case 321, and the planetary gear reduction mechanism and the automatic clutch 33 are respectively disposed at opposite ends of an inner cavity of the first case 321. An end cover 323 is arranged at the outer end of the first box 321, and the lifting motor 31 is fixed at the outer end of the end cover 323.

The planetary gear reduction mechanism includes a first carrier 3211, a second carrier 3212, and an output carrier 3213, and the first carrier 3211, the second carrier 3212, and the output carrier 3213 are coaxially disposed.

The input end of the first planet carrier 3211 is provided with a first planet wheel 3214, and the axis of the output end is provided with a first sun gear 3215; the input end of the second planet carrier 3212 is provided with a second planet wheel 3216, and the axis of the output end is provided with a second sun wheel 3217; the input end of the output planet carrier 3213 is provided with a third planet gear 3218, and the output end at the axis is connected with an automatic clutch 33.

An inner gear ring is arranged on the inner wall of the first box 321 where the planetary gear speed reducing mechanism is located, the first planet gear 3214, the second planet gear 3216 and the third planet gear 3218 are all meshed with the inner gear ring, the input sun gear 3220 is fixed on a transmission shaft of the lifting motor 21 and is meshed with the first planet gear 3214, the first sun gear 3215 is meshed with the second planet gear 3216, and the second sun gear 3217 is meshed with the third planet gear 3218.

The output gear case 34 includes a second case 341 in which a first output gear 3221 and a second output gear 3222 are engaged with each other are provided, and the second case 341 is fixed to the first case 321. The first output gear 3221 is connected with an output shaft of the automatic clutch 33, a connecting through hole is formed in an axis of the second output gear 3222, the transmission shaft 40 is inserted into the connecting through hole and fixed with the second output gear 3222, and two ends of the transmission shaft respectively penetrate through the second case 341 and then fixed with the gear 50. The driving shaft 40 is located outside the first case 321.

The transmission shaft 40 and the second output gear 3222 may be matched in a spline or prism + cylindrical hole manner, so as to form a structural form that the transmission shaft 40 can be driven by the second output gear 3222 to rotate and can axially move.

As shown in fig. 6, 7, and 8, the automatic clutch 33 includes a clutch disc 331, a dial 332, an output disc 333, and a ball 334 and a magnet 335.

In the following description of the automatic clutch, the axially inner end (inner side) refers to an end toward the output gear box in the axial direction, and the axially outer end (outer side) refers to an end toward the planetary reduction gear. The lower end is the end facing the axial center along the radial direction, and the upper end is the end far away from the axial center.

The center of the clutch disc 331 is provided with a through hole through which the output shaft of the output planet carrier 3213 passes to be fixed with the shifting block 332. The clutch disc 331 is in interference fit with the inner wall of the first case 321 to keep the clutch disc 331 fixed, and the output shaft of the output planet carrier 3213 can rotate in the through hole in the center of the clutch disc 331. Two sliding grooves 336 are symmetrically arranged on the inner end surface (the end facing the output gear box) of the clutch disc 331 along the radial direction, the sections of the sliding grooves 336 are semicircular and are matched with the spherical steel balls 334, and the lower ends (the end facing the axis) of the sliding grooves 336 are separated from the through hole in the center of the clutch disc 331 (namely the sliding grooves 336 are not communicated with the through hole). The lower end of the sliding groove 336 is provided with an installation hole which is arranged along the axial direction, the magnet 335 is fixed in the installation hole, the inner end surface is flush with the bottom surface of the sliding groove 336, and the rolling of the spherical steel ball 334 along the sliding groove 336 is not influenced. Each sliding groove 336 is internally provided with a spherical steel ball 334 which can roll (slide) along the length direction of the sliding groove 336, and when the spherical steel ball 334 slides to the position at the lower end of the sliding groove 336, the magnet 335 is fixed at the lower end of the sliding groove 336 through suction force.

As shown in fig. 9 and 10, the shifting block 332 is a plate, the center of which is fixed to the output shaft of the output planet carrier 3213 and can rotate synchronously with the output planet carrier 3213, and the shifting block and the output planet carrier can be connected by a pin, a cylindrical hole, or the like. The shifting block 332 has a cylindrical central portion 3321, two protrusions 3322 protruding outward in the radial direction are provided on the outer circumferential surface of the central portion 3321, the two protrusions 3322 are symmetrically arranged in the circumferential direction, and the outer ends of the protrusions 3322 are semicircular and are in smooth transition connection with the central portion 3321 through an arc portion 3323. The arc portion 3323 is recessed toward the axis of the shifting block 332 for pushing the ball 334 to roll along the sliding groove 336.

The outer end (the end facing the planetary reducer) of the output disc 333 is a circular sleeve, the outer end is open, a plurality of clamping grooves 3331 are uniformly distributed on the inner wall of the circumference, the clamping grooves 3331 are axially arranged, and the section of each clamping groove 3331 is semicircular and is matched with the spherical steel ball 334. The inner end of the output disc 333 is closed, and a through hole is formed in the center, and is connected to the driving shaft 3223 of the first output gear 3221 in a matching manner, so as to drive the first output gear 3221 to rotate.

The shifting block 332 and the clutch disc 33 are arranged in the circular sleeve, and through rotation of the shifting block 332, the circular arc portion 3323 pushes the spherical steel ball 334 to roll along the sliding groove 336 and be clamped into or separated from the clamping groove 3331, so that the shifting block 332 and the output disc 333 are combined or separated. Therefore, automatic combination or disconnection between the planetary reducer and the output gear box is realized, two operation modes of electric operation and manual operation of the folding window are realized, and when the lifting motor is used for driving, the planetary reducer and the output gear box are automatically combined; after the lifting motor stops, the planetary reducer and the output gear box are automatically separated.

The operation and the working principle of the automatic clutch will be described in detail below with reference to fig. 11-13, taking electric lift as an example (forward rotation, i.e. clockwise rotation, of the lift motor).

In the scheme of the invention, the controller for starting or stopping the lifting motor can be fixed on the window frame/the door frame in a wired mode; also can adopt the long-range thing of APP to ally oneself with control, bluetooth remote control, various induction control such as wind and rain, smog, temperature, fixed box control and handheld remote control.

When a lifting switch on the controller is pressed down, the lifting motor is started, and after the speed is reduced by the planetary reducer, the output shaft of the output planet carrier 3213 drives the shifting block 332 to rotate clockwise until the arc portion 3323 on the shifting block 332 is in contact with the spherical steel ball 334, as shown in fig. 11.

The lifting motor continues to rotate, the spherical steel ball 334 overcomes the attraction of the magnet 335 to be separated from the magnet under the pushing of the arc portion 3323, and continues to move upwards (radially outer end) along the sliding groove 336 under the pushing of the arc portion 3323, finally, the upper half portion of the spherical steel ball 334 is clamped into the clamping groove 3331 on the inner wall of the output disc 333, and the lower half portion of the spherical steel ball 334 is located at the upper end of the arc portion 3323, as shown in fig. 12. Under the drive of the rotation of the shifting block 332, the spherical steel balls 334 drive the output disc 333 to rotate together with the shifting block 332, so that the combination of the planetary reducer and the output gearbox is realized.

When the stop switch on the controller is pressed down or the lifting switch is released, the lifting motor is controlled to rotate reversely for a period of time and then stop, the lifting motor rotates reversely to enable the shifting block 332 to rotate reversely for a certain angle, for example, rotate counterclockwise for 20-30 degrees, so that the circular arc portion 3323 is separated from the spherical steel ball 334, at this time, the thrust applied to the spherical steel ball 334 by the circular arc portion 3323 disappears, and then the spherical steel ball 334 moves (rolls) downwards along the sliding groove 336 under the action of the suction force of the magnet 335 and is finally fixed at the lower end of the sliding groove 336 by magnetic force, as shown in fig. 13. Disengagement of the planetary reducer from the output gearbox. At this time, the output tray 333 is freely rotatable, so that when an operator manually lifts or lowers the folding window, the transmission shaft 40 can drive the output gear box and the second and first output gears to rotate, without transmitting a driving force to the planetary gear reducer and the lifting motor, and can be lifted or lowered by any manual operation.

To disengage the clutch, the time for the reverse rotation of the lift motor may be determined based on the reduction ratio of the planetary reducer and the angle at which the dial 332 disengages the ball 334.

In the above scheme, there are two sliding grooves 336 on the clutch plate, and two spherical steel balls 334 and two convex portions 3322 matched with the sliding grooves 336. In practical applications, the specific number is not limited to two, and may be only one, or two or more.

The elevator motor 21 is powered by an external power source, and for this purpose, a power interface is provided on the window/door frame 10, and the power interface is connected with the elevator motor 21 through a wire. If the maintenance is convenient, the power interface can be arranged on the lower frame; if it is considered to avoid the infiltration of rainwater, the power source interface may be provided on the upper frame of the window/door frame 10; it is also possible to provide the power interface on the side frame of the window/door frame 10.

The rack 60 may also be constructed as an elastic endless toothed belt.

The invention realizes the automatic combination and disconnection of the speed reducer and the output gear box through the automatic clutch, can be electrically driven and manually operated, and is convenient to use.

The invention realizes that the transmission shaft is driven by one lifting motor to extend out in two directions by matching the lifting motor with the reduction gearbox, and the lower window sash is driven by matching the gear and the rack to slide up and down, so the invention has the advantages of stable motion, small friction force, flexible movement, no clamping stagnation and cost saving.

In addition, the driving lifting motor assembly is arranged in the lower window sash and can move along with the lower window sash, and compared with the lifting motor assembly arranged in the upper frame of the window frame/the door frame, the driving lifting motor assembly is more convenient to install, maintain and maintain.

The automatic clutch provided by the invention is not limited to be applied to the fields of up-and-down, left-and-right, side-to-side opening and the like of electric doors and windows, and can also be applied to various fields of sun shades, curtains, curtain walls, cabinet doors of home appliances and furniture, garages and the like.

Example 2.

In order to avoid the loose and winding of the conducting wire, the invention designs an automatic conducting wire tensioning device which is arranged in the upper frame or the lower frame of the window frame/door frame 10 on the basis of the specific embodiment 1.

As shown in fig. 14, taking the example of being disposed in the upper frame of the window/door frame 10, the automatic wire tensioning device includes a spring 71 and a pulley block consisting of a movable pulley 72 and first and second fixed

pulleys

73, 74, the first and second fixed

pulleys

73, 73 being disposed side by side at the ends of the side frames of the window/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 with the fixed shaft 75, the other end of the spring is fixed with the movable pulley 72, a lead 76 is arranged in the side frame of the side window frame/door frame 10, one end of the lead 76 is connected with a power interface, and the other end of the lead is connected with a wiring terminal of the lifting motor 21 after sequentially passing through the fixed pulley 73, the movable pulley 72 and the second fixed pulley 74.

When the lower window sash 20 moves downwards, the wire 76 pulls the movable pulley 72 to move towards the first fixed slide 73, and the spring 71 is pulled to store energy, so that the wire 76 keeps a tensioned state; when lower window sash 20 moves upward, spring 71 pulls movable pulley 72 away from first fixed slide 73, also keeping wire 76 taut. Thus, the wire 76 is always in tension, and does not become loose from being wound, regardless of whether the lower window sash 20 is moved upward or downward.

The first fixed pulley 73 and the second fixed pulley 74 may be horizontally arranged side by side, or may be arranged side by side in the vertical direction.

In the embodiment, the conducting wire is always in a tensioned state through the conducting wire automatic tensioning device, so that the situation that the conducting wire is loosened and wound together to influence the movement of the lower window sash is avoided.

Example 3.

The present invention makes the weight of the lower window sash 20 uniform by lifting the balancer 80, and the window can hover at any position. The pull balancer 80 may take the form of the pull balancer disclosed in CN209742589U and CN109458081A, or other configurations. Both ends of the transmission shaft 40 penetrate through the gear 50 and are fixed with the sliding blocks on the lifting balancer. By pulling the balancer 80, the folding window can be manually lifted and lowered with a small amount of air force, and a low-power dc motor can be loaded on the window sash.

As shown in fig. 25 to 27, the lifting balancer includes a case 820 and a slider 810 disposed under the case 820, and a plurality of sets of coil springs 830 are provided in the case 820.

The slider 810 is disposed at the lower end of the case 820, grooves 811 are formed at the left and right sides of the slider 810, coil spring fixing portions 812 are formed at the lower portions of the grooves 811 to protrude outward, the coil spring fixing portions 812 have a square prism shape, and coil spring fixing holes 813 are formed at the upper portions of the grooves 811. Each coil spring 830 is pulled out downwards from the box body 820, the tail end of each coil spring 830 extends out of the box body 820 and then is overlapped, a through hole matched with the coil spring fixing part 812 is formed in each coil spring 830, the tail end of each coil spring 830 is sleeved on the corresponding coil spring fixing part 812 and is fixed with the corresponding coil spring fixing hole 813 through a bolt, and the coil springs 830 are installed on the sliding blocks 810. The bottom end of the groove 811 on the slider 810 is inclined inwards, so that the tail end of the coil spring 830 can be conveniently attached to the groove 811, and the tail end of the coil spring 830 is prevented from being tilted to block the movement of the movable window sash or scratch a user.

Be equipped with shaft hole 814 on slider 810, shaft hole 814 runs through slider 810's front and back terminal surface, and the both ends of shaft hole 814 are equipped with bearing frame 841 respectively, are equipped with the stripe groove along circumference on the inner wall of bearing frame 841, and the internal diameter in shaft hole 814 is less than the internal diameter of bearing frame 841. When the power window sash lifting device is applied to electric lifting, a driving part of a power motor is connected with a shaft hole 814 through a bearing, the bearing is fixed with a bearing seat 841 through a stripe groove on the bearing seat 841, and the sliding block 810 is driven to slide, so that the movable window sash is driven to automatically lift. The top end of the slider 810 is provided with a buffer groove 815.

The box 820 is composed of a lower box 821 and an upper box, and the lower box 821 and the upper box are integrally formed. The lower box body 821 is internally provided with a plurality of lower shaft seats 841, the upper box body is detachably arranged on the lower box body 821, the bottom surface of the upper box body 822 opposite to the lower box body is provided with an upper fixed shaft matched with the lower shaft seats 841, the upper fixed shaft is inserted in the lower shaft seats 841 to form a coil spring seat, and the coil spring 830 is fixed on the coil spring seat. The both ends of lower box body 821 and last box body are equipped with the buffer block 823 with buffer slot 815 looks adaptation, and when slider 810 slided to the one end of box body 820, buffer block 823 inserted in buffer slot 815, can play certain cushioning effect, reduces the collision of slider 810 and box body 820 to the life of extension slider 810 and box body 820. The upper box body 822 and the lower box body are provided with a plurality of limiting columns 824, the upper fixing shaft and the lower shaft seat 841 limit each coil spring 830 at corresponding positions, and the coil springs 830 can be effectively prevented from moving freely in the box body 820, so that the using effect is influenced.

According to the scheme, the force of the coil springs can ensure the stress balance of the movable door/window sash by utilizing the coil springs with different types and numbers, the coil springs can be selected according to the practical conditions of the size, the weight and the like of the window sash, and the flexibility and the convenience are further improved; the positioning piece is not needed, the problems caused by deformation and aging of the positioning piece are avoided, the structure is simpler, and the service life is effectively prolonged.

In addition, if the coil spring which is prepared for the first time cannot meet the balance of the movable door/window sash, the mounting seat reserved in the lifting balancer is used for increasing the coil spring to improve the pulling force of all the coil springs, so that the movable door/window sash is matched, and the movable door/window sash can be suspended at any position.

Example 4.

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

Fig. 1 shows an automated manual engaging and disengaging lock 100 disposed on an upper frame of a lower window sash 20. The manual-automatic integrated clutch lock 100 has an automatic clutch function, can be unlocked or locked automatically by controlling a lock motor through a controller, and can also be unlocked and locked manually without using the controller. The detailed structure and operation principle of the manual-automatic integrated clutch lock 100 will be described in detail with reference to fig. 15-16.

As shown in fig. 15, the automated manual separation and reunion lock 100 includes a lock body 110, an operating handle 120, and a telescopic lock bar 130. The lock body 110 is fixed on the upper frame of the lower window sash 20 through the mounting plate 140, the telescopic lock rod 130 functions as a bolt, the outer end of the telescopic lock rod is connected with an extension rod, the inner side walls of the left and right side frames of the window frame/door frame 10 are respectively provided with a lock hole, the lock body 110 is internally provided with a lock cylinder, and the lock cylinder enables the telescopic lock rod 130 to extend or contract towards the left and right sides under the control of the operating handle 120 or a lock motor, so that the extension rod is inserted into or retracted from the lock hole, thereby realizing locking or unlocking.

As shown in fig. 16, the lock cylinder includes a lock motor 150, a first drive mechanism 160, a clutch mechanism 170, a second drive mechanism 180, and a deadbolt drive mechanism 190.

As shown in fig. 17, the first driving mechanism 160 includes a worm 161, a first duplicate gear 162, a second duplicate gear 163, and a third duplicate gear 164. The worm 161 is connected to an output shaft of the lock motor 150, a large gear of the first duplicate gear 162 is engaged with the worm 161, a small gear of the first duplicate gear 162 is engaged with a large gear of the second duplicate gear 163, a small gear of the second duplicate gear 163 is engaged with a large gear of the third duplicate gear 164, and a small gear of the third duplicate gear 164 is used for outputting rotation to the clutch mechanism 170.

As shown in fig. 18 and 19, the clutch mechanism 170 includes a lower gear 171, an upper gear 172, a swing frame 173, and swing teeth 174. The lower gear 171 is coaxially fixed to the upper gear 172, the lower gear 171 is engaged with a pinion gear of the third duplicate gear 164, the swing frame 173 is in a zigzag shape, the center thereof is fixed to a gear shaft of the upper gear 172, the two ends thereof are respectively provided with an unlocking swing tooth 174 and a closing swing tooth 175, the upper gear 172 is respectively engaged with the unlocking swing tooth 174 and the closing swing tooth 175, and the unlocking swing tooth 174 and the closing swing tooth 175 are engaged with and disengaged from the second driving mechanism 180.

As shown in fig. 19, the second drive mechanism 180 includes a first drive gear 181 and a second drive gear 182 that are engaged with each other for transmitting the output rotation of the clutch mechanism 170 to the deadbolt drive mechanism 190.

As shown in fig. 20, the latch bolt driving mechanism 190 includes a third driving gear 191 and a fourth driving gear 192, and the fourth driving gear 192 is rotatably installed in the lock body 110 to drive the telescopic lock lever 130 to extend or retract to both sides in cooperation with the third driving gear 191. A square hole 193 is formed in the center of the third driving gear 191, and the operating handle 120 is inserted and fixed in the square hole 193 to rotate the third driving gear 191. The second driving gear 182 is coaxially and fixedly disposed with the third driving gear 191.

The telescopic lock lever 130 includes a first telescopic lock lever 131 and a second telescopic lock lever 132 respectively provided at left and right sides of the lock body 110.

As shown in fig. 21, the inner end of the first telescopic lock bar 131 is bent in a zigzag shape, and includes a connection portion 1312 and an outer end portion 1313 which are sequentially connected to the inner end portion 1311, the inner end portion 1311 and the outer end portion 1313 are parallel to each other, a first locking bolt rack is disposed on a side of the inner end portion 1311 facing the third driving gear 191, and a second locking bolt rack is disposed on a side of the outer end portion 1313 facing away from the third driving gear 191.

The outer end 1313 of the first telescopic lock rod 131 is opposite to the inner end of the second telescopic lock rod 132, a third bolt rack is arranged on the side of the inner end of the second telescopic lock rod 132 facing the first telescopic lock rod 131, and the fourth drive gear 192 is clamped between the outer end 1313 of the first telescopic lock rod 131 and the inner end of the second telescopic lock rod 132 and is respectively engaged with the second bolt tooth and the third bolt rack.

The operation of the manual-automatic integrated clutch lock 100 is as follows:

(1) And (4) electrically unlocking.

When an unlocking button on the controller is pressed, the lockset motor 150 is started and rotates forwards, the first duplicate gear 162, the second duplicate gear 163 and the third duplicate gear 164 are driven to rotate along with the rotation of the worm 161, the third duplicate gear 164 drives the lower gear 171 and the upper gear 172 to rotate synchronously, then the swing frame 173 drives the unlocking swing teeth 174 to be combined with the first driving gear 181 along with the rotation of the upper gear 172, the locking swing teeth 175 are separated from the first driving gear 181, and as shown in fig. 22, the first driving gear 181 is driven to rotate, and the second driving gear 182 is driven to rotate clockwise. The second driving gear 182 drives the operating handle 120 and the third driving gear 191 to rotate, and the third driving gear 191 drives the first driving rack on the inner end 1311 of the first telescopic lock rod 131 to retract the first telescopic lock rod 131 inwards; meanwhile, the second driving rack on the outer end 1313 of the first telescopic lock rod 131 drives the fourth driving gear 192 to rotate, and the fourth driving gear 192 is matched with the third driving rack on the inner end of the second telescopic lock rod 132 to drive the second telescopic lock rod 132 to retract inwards. Then, the first telescopic lock rod 131 and the second telescopic lock rod 132 are both retracted inward, so that the extension rods connected thereto are retracted inward and released from the locking holes on the inner sidewalls of the left and right side frames of the window/door frame 10, and the manual-automatic integrated clutch lock is opened.

After the manual-automatic clutch lock is opened, the lock motor 150 rotates reversely by a certain angle, so that the unlocking swing teeth 174 and the locking swing teeth 175 in the clutch mechanism 170 are disengaged from the first driving gear 181 in the second driving mechanism 180, as shown in fig. 23. At this time, the operating handle 120 may be manually rotated to open and close the lock.

(2) And (6) electrically closing the lock.

When a lock closing button on the controller is pressed, the lockset motor 150 is started and rotates reversely, the first duplicate gear 162, the second duplicate gear 163 and the third duplicate gear 164 are driven to rotate along with the rotation of the worm 161, the third duplicate gear 164 drives the lower gear 171 and the upper gear 172 to rotate synchronously, then the swing frame 173 rotates along with the rotation of the upper gear 172, so that the unlocking swing tooth 174 is disengaged from the first driving gear 181, and the lock closing swing tooth 175 is combined with the first driving gear 181, as shown in fig. 25, and drives the first driving gear 181 to rotate, and further drives the second driving gear 182 to rotate anticlockwise. The second driving gear 181 drives the operating handle 120 and the third driving gear 191 to rotate, and the third driving gear 191 drives the first driving rack on the inner end 1311 of the first telescopic lock rod 131 to extend the first telescopic lock rod 131 outwards; meanwhile, the second driving rack on the outer end 1313 of the first telescopic lock rod 131 drives the fourth driving gear 192 to rotate, and the fourth driving gear 192 is matched with the third driving rack on the inner end of the second telescopic lock rod 132 to drive the second telescopic lock rod 132 to extend outwards. Then, the first telescopic lock rod 131 and the second telescopic lock rod 132 both extend outward, so that the extension rods connected to each extend outward and are inserted into the lock holes on the inner side walls of the left and right side frames of the window/door frame 10, and the manual-automatic integrated clutch lock is locked.

After the manual-automatic integrated clutch lock is locked, the lock motor 150 rotates forward by a certain angle, so that the unlocking swing teeth 174 and the locking swing teeth 175 in the clutch mechanism 170 are disengaged from the second driving gear 182 in the second driving mechanism 180. At this time, the operating handle 120 may be manually rotated to open and close the lock.

(3) When the lock is manually opened and closed, the clutch mechanism 170 is already disengaged from the second driving mechanism 180, so that the first driving 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).

According to the invention, when the folding door and window is electrically controlled, the opening or closing of the manual-automatic integrated clutch lock can be automatically carried out.

(1) When the folding window is in the closed state, the lockset is in the locking state at the moment. When a lifting button of the folding window is pressed, unlocking operation is firstly executed, a lock motor is started, an extension rod is pulled out of a lock hole, the lock motor rotates reversely, and the clutch mechanism 170 is disengaged from the bolt driving mechanism 190;

(2) The lifting motor is started to lift the lower window sash upwards to a specified position.

(3) When the folding window is in the open mode, the lockset is in the open mode at the moment. When the folding window descending button is pressed down, the lifting motor is started, the lower window sash is lifted downwards and pulled, and when the lower window sash descends to the right position, the lock motor is started, so that the extension rod extends into the lock hole, then the lock motor rotates reversely, and the clutch mechanism 170 is disengaged from the bolt driving mechanism 190.

Compared with the prior art, the invention has the following advantages:

(1) The driving device has an automatic clutch function and can automatically realize the arbitrary switching between electric operation and manual operation;

(2) The driving device adopts a form of a bidirectional transmission shaft, the lower window sash is driven by the two sides to move up and down, the movement is stable, the friction force is small, and the movement is flexible.

(3) The left and right sides of the window are driven by the lifting motor to output balance, the potential safety hazard that the window sash is broken by force due to unbalance of the two sides when one motor is damaged and the other motor continues to work is avoided, and the cost is saved.

(4) The driving lifting motor component is arranged in the lower window sash and can move up and down along with the lower window sash, so that the installation, maintenance and repair are convenient.

(5) The weight of the lower window sash is uniform by lifting the balancer, a low-power and low-current direct current lifting motor can be loaded on the lower window sash, and the lower window sash can be suspended at any position only by engaging and disengaging the driving motor.

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

(7) The clutch is carried out by adopting a mechanical structure, the stability is high, electronic parts such as an electromagnetic switch and the like are not adopted, the failure rate is low, and the maintenance cost is low.

(8) This control drive is integrative to be based on safe voltage, undercurrent, miniwatt direct current motor, the long-range thing of APP that realizes allies oneself with the control, bluetooth remote control, various induction control such as wind and rain, smog, temperature, fixed box control and handheld remote control.

The present invention is not limited to the above preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the protection scope of the present invention.

Claims

1. An electric folding door and window is characterized by comprising a window frame/door frame fixed on a wall body, and an upper window sash and a lower window sash which are arranged in the window frame/door frame, wherein the top of the upper window sash is hinged to the outer side of the upper part of the window frame/door frame; the top of the lower window sash is hinged with the bottom of the upper window sash, the bottom of the lower window sash is vertically and slidably arranged on the window frame/door frame, a driving device is fixedly arranged in the lower window sash/door frame of the lower window sash, the driving device is provided with a transmission shaft driven by a lifting motor, the transmission shaft is horizontally arranged, two end parts of the transmission shaft respectively extend out of two opposite side surfaces of the lower window sash and are respectively and fixedly provided with a gear, the left inner side wall and the right inner side wall of the window frame/door frame are respectively and fixedly provided with a rack, the gear and the rack are mutually meshed, the lower window sash is driven to vertically slide along a sliding rail on the inner side surface of the window frame/door frame under the interaction of the gear and the rack along with the rotation of the lifting motor, so that the lower frame of the upper window sash is ejected out or retracted, and the upper window sash and the lower window sash are in an included angle shape, and the opening or closing of the lower window sash is realized.

2. The motorized folding door and window according to claim 1, characterized in that the driving means comprise a lifting motor, a planetary reducer, an automatic clutch and an output gearbox connected in series in this order.

3. The electric folding door and window as claimed in claim 2, wherein the outer end of the lifting motor is fixedly provided with a first fixing plate, the outer end of the output gear box is provided with a second fixing plate, the second fixing plate is simultaneously used as an outer end cover of the output gear box, and the driving device can be fixed in the upper sash frame or the lower sash frame of the lower sash through the first fixing plate and the second fixing plate.

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

5. The electric folding door and window as claimed in claim 4, wherein 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 planet 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 planet wheel, and the axis of the output end is provided with a second sun wheel; the input end of the output planet carrier is provided with a third planet wheel, the output end positioned at the axis is connected with the automatic clutch, the inner wall of the first box body is provided with an inner gear ring, the first planet wheel, the second planet wheel and the third planet wheel are all meshed with the inner gear ring, the input sun wheel is fixed on a transmission shaft of the lifting motor and is meshed with the first planet wheel, the first sun wheel is meshed with the second planet wheel, the second sun wheel is meshed with the third planet wheel, the output gear box comprises a second box body, a first output gear and a second output gear which are mutually meshed are arranged in the second box body, the second box body is fixed with the first box body, the first output gear is connected with 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 into the connecting through hole and fixed with the second output gear, and two ends of the transmission shaft penetrate through the second box body respectively and then are fixed with the gear, and the transmission shaft is positioned outside the first box body.

6. The electric folding door and window as claimed in claim 4, wherein the automatic clutch includes a clutch disc, a dial, an output disc, a ball-shaped steel ball and a magnet, a through hole is formed in the center of the clutch disc, the output shaft of the output planet carrier passes through the through hole and is fixed to the dial, the clutch disc is in interference fit with the inner wall of the first box body to keep the clutch disc fixed, the output shaft of the output planet carrier can rotate in the through hole in the center of the clutch disc, two sliding grooves are symmetrically formed in the inner end surface of the clutch disc along the radial direction, the cross sections of the sliding grooves are semicircular and are matched with the ball-shaped steel ball, the lower ends of the sliding grooves are separated from the through hole in the center of the clutch disc, an axially-arranged mounting hole is formed in the lower ends of the sliding grooves, the magnet is fixed in the mounting hole, the inner end surface is flush with the bottom surfaces of the sliding grooves, a ball-shaped steel ball is respectively arranged in each sliding groove and can roll along the length direction of the sliding groove, and when the ball-shaped steel ball slides to the lower ends of the sliding grooves, the magnet is fixed to the lower ends of the sliding grooves by suction force.

7. The electrically-operated folding door/window according to claim 6, wherein the shift block is integrally sheet-shaped, the center of the shift block is fixed to the output shaft of the output planetary carrier and can rotate synchronously with the output planetary carrier, the shift block and the output planetary carrier are connected by a pin key or a cylindrical hole connection structure, the shift block has a cylindrical central portion, two convex portions which protrude outwards in the radial direction are arranged on the outer circumferential surface of the central portion, the two convex portions are symmetrically arranged in the circumferential direction, the outer end portions of the convex portions are semicircular and are connected with the central portion in a smooth transition mode through arc portions, and the arc portions are recessed towards the axis of the shift block and are used for pushing the ball-shaped steel balls to roll along the sliding grooves; the outer end of the output disc is a circular sleeve, the outer end of the output disc is open, a plurality of clamping grooves are uniformly distributed on the inner wall of the circumference, the clamping grooves are arranged along the axial direction, the section of each clamping groove is semicircular and matched with the spherical steel balls, the inner end of the output disc is closed, the center of each clamping groove is provided with a through hole, and the clamping grooves are connected with a driving shaft of the first output gear in a matching mode to drive the first output gear to rotate; the shifting block and the clutch disc are arranged in the circular sleeve, the circular arc part pushes the spherical steel ball to roll along the sliding groove and be clamped into or separated from the clamping groove by the rotation of the shifting block, so that the shifting block is combined with or separated from the output disc, the automatic combination or separation between the planetary reducer and the output gear box is realized, the electric operation mode and the manual operation mode of the folding window are realized, and when the lifting motor is used for driving, the planetary reducer is automatically combined with the output gear box; after the lifting motor stops, the planetary reducer and the output gear box are automatically separated.

8. The electromotive foldable door/window of claim 1, wherein the inner sides of the left and right sides of the window/door frame are respectively provided with a pull balancer, and the lower window sash slides up and down along the window/door frame through the pull balancer.

9. The electrically-operated folding door and window as claimed in claim 8, wherein the lifting balancer includes a box body and a slider disposed under the box body, and a plurality of groups of coil springs are disposed in the box body; the slider is arranged at the lower end of the box body, grooves are formed in the left side and the right side of the slider, coil spring fixing parts are arranged on the lower portions of the grooves in an outward protruding mode and are square prism-shaped, coil spring fixing holes are formed in the upper portions of the grooves, each coil spring is pulled out of the box body downwards, the tail end of each coil spring is overlapped after extending out of the box body, through holes matched with the coil spring fixing parts are formed in the coil springs, the tail ends of the coil springs are sleeved on the coil spring fixing parts and are fixed with the coil spring fixing holes through bolts, the coil springs are installed on the slider, and the bottom ends of the grooves in the slider are arranged in an inward inclined mode, so that the tail ends of the coil springs can be attached to the grooves conveniently; be equipped with the shaft hole on the slider, the shaft hole runs through the front and back terminal surface of slider, and the both ends in shaft hole are equipped with the bearing frame respectively, are equipped with the stripe groove along circumference on the inner wall of bearing frame, and the internal diameter in shaft hole is less than the internal diameter of bearing frame, the tip of transmission shaft passes through the bearing and links to each other with the shaft hole, and the bearing passes through the stripe groove on the bearing frame to be fixed with the bearing frame, and the drive slider slides to drive activity casement automatic rising, the top of slider is equipped with the dashpot.

10. The power-driven foldable door/window of claim 9, wherein the case is formed by combining a lower case and an upper case, the lower case and the upper case are integrally formed, the lower case has a plurality of lower shaft seats therein, the upper case is detachably mounted on the lower case, an upper fixing shaft adapted to the lower shaft seats is provided on a bottom surface of the upper case opposite to the lower case, the upper fixing shaft is inserted into the lower shaft seats to form coil spring seats, the coil springs are fixed on the coil spring seats, buffer blocks adapted to the buffer grooves are provided at both ends of the lower case and the upper case, a plurality of limiting posts are provided on the upper case and the lower case, and the limiting posts, the upper fixing shaft and the lower shaft seats limit the respective coil springs to corresponding positions.