Bi-folding doors and windows

Abstract

The present invention provides a two-way folding door and window, comprising a window frame, a first window sash, a second window sash and a driving mechanism; the window frame is embedded in a wall; the first window sash is rotatably connected to the inner top wall of the window frame; the second window sash is located below the first window sash and is rotatably connected to the bottom wall of the first window sash; the driving mechanism is arranged on the window frame, and the driving mechanism is respectively connected to the first window sash and the second window sash, and is used to drive the first window sash to swing indoors or outdoors, and is also used to drive the second window sash to swing. The two-way folding door and window provided by the present invention can control the first window sash to swing outdoors in the window frame, and control the second window sash to swing, and can shield the upper front area of ​​the window frame outdoors, prevent external rainwater from entering the room, and improve the cleanliness of the room; and the first window sash and the second window sash can swing to the room, which is convenient for cleaning the outdoor side.

Description

Technical Field

[0001] The invention belongs to the technical field of door and window manufacturing, and in particular relates to a bidirectional folding door and window. Background Art

[0002] Doors and windows are important components of buildings and have multiple functions. Doors and windows are not only an important part of the building envelope system, but also have an important impact on the overall shape of the building. Folding windows are a new type of window design. By installing a hinged telescopic component, the window can be moved outward as much as possible, thereby bringing more sunlight and light to the balcony and living room.

[0003] In the prior art, folding windows are usually opened by pulling up and down, with the two window sashes forming an angle and hovering in the window frame to achieve ventilation of the door and window. When this type of folding window is opened, the two window sashes are in the window frame, and both window sashes have openings above and below. In rainy weather, rainwater can easily enter the room through the opened folding window, affecting the cleanliness of the room. In addition, the folding window is not easy to clean on the outdoor side, which is inconvenient to clean when installed on a high floor, and the safety risk is relatively high. Summary of the invention

[0004] The embodiment of the present invention provides a bidirectional folding door and window, aiming to improve the indoor cleanliness and the cleaning convenience of the window sash on rainy days.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a two-way folding door and window, including a window frame, a first window sash, a second window sash and a driving mechanism; the window frame is embedded in the wall; the first window sash is rotatably connected to the inner top wall of the window frame; the second window sash is located below the first window sash and is rotatably connected to the bottom wall of the first window sash; the driving mechanism is arranged on the window frame, and the driving mechanism is respectively connected to the first window sash and the second window sash, for driving the first window sash to swing indoors or outdoors, and also for driving the second window sash to swing.

[0006] In one possible implementation, the driving mechanism includes a rotary drive member, a first transmission component, a second transmission component and a clutch transmission member; the rotary drive member is arranged on the window frame; the first transmission component is connected to the second window sash and is connected to the output end of the rotary drive member; the second transmission component is arranged on the window frame and is connected to the first window sash; the clutch transmission member is arranged on the window frame, and has a combined position connecting the first transmission component and the second transmission component, and also has a separated position separated from at least one of the first transmission component and the second transmission component; wherein, in the combined position, the rotary drive member drives the first window sash and the second window sash to swing together, and in the separated position, the rotary drive member drives the second window sash to swing alone.

[0007] In one possible implementation, the first transmission assembly includes a worm, a worm wheel, a first gear, two first sprockets and a second gear; the worm is connected to the output end of the rotating drive member; the worm wheel is rotatably disposed on the window frame and is meshed with the worm; the first gear is located above the worm wheel and is rotatably disposed on the window frame; the two first sprockets are respectively disposed on the worm wheel and the first gear, and the two first sprockets are connected through a first chain transmission; the second gear is rotatably disposed on the window frame, and the second gear is meshed with the first gear; wherein the second gear is connected to the second transmission assembly through a clutch transmission member in a coupled state.

[0008] In one possible implementation, the second transmission assembly includes a rotating shaft, a third gear, two second sprockets and a fourth gear; the rotating shaft is rotatably disposed on the window frame and is connected to the first window sash; the third gear is rotatably disposed on the window frame and is located between the rotating shaft and the first gear; the two second sprockets are respectively disposed on the rotating shaft and the third gear, and the two second sprockets are connected through a second chain transmission; the fourth gear is rotatably disposed on the window frame and is meshed with the third gear; wherein the fourth gear is connected to the second gear through a clutch transmission member in a coupled state.

[0009] In one possible implementation, the clutch transmission member includes a telescopic drive member and a movable gear arranged at the output end of the telescopic drive member; when the telescopic drive member drives the movable gear to move to engage with the second gear and the fourth gear together, a coupled state is formed; when the telescopic drive member drives the movable gear to disengage from the second gear and the fourth gear, a separated state is formed.

[0010] In one possible implementation, a pushing assembly is connected to the second window sash, the second window sash is rotatably connected to the bottom wall of the first window sash, and a slide groove is provided on the side wall of the second window sash; one end of the pushing assembly is slidably connected to the slide groove, and the other end is connected to the worm gear, and the pushing assembly is used to drive the second window sash to swing.

[0011] In a possible implementation, the push assembly includes a first rod body and a second rod body, wherein one end of the first rod body is connected to the worm gear; one end of the second rod body is hinged to the first rod body, and the other end is hinged to a slider, which is slidably connected in the slide groove.

[0012] In a possible implementation, two baffles are rotatably provided on the side wall of the second window sash, the two baffles are respectively located on both sides of the slide groove, and a space for accommodating the push assembly is formed between the two baffles.

[0013] In a possible implementation, a torsion spring is provided on the rotating shaft of the baffle.

[0014] In a possible implementation, the window frame includes a frame body and two outer shells, the two outer shells are respectively connected to outer walls on opposite sides of the frame body, and a cavity for accommodating the driving mechanism is opened inside the outer shells.

[0015] The beneficial effect of the bidirectional folding door and window provided by the present invention is that: compared with the prior art, the present invention can control the first window sash to swing toward the indoor or outdoor in the window frame through a driving mechanism with two driving ends, and control the second window sash to swing at the same time. The first window sash swings toward the outdoor in the window frame, which can avoid the appearance of a gap between the first window sash and the window frame. At the same time, the driving mechanism can drive the second window sash to swing, so that the second window sash can cooperate with the first window sash to block the upper front area of ​​the window frame, avoid rainwater flowing into the room along the first window sash and the second window sash, and prevent rainwater from being blown into the room by the outdoor wind, thereby improving the indoor cleanliness; the first window sash can drive the second window sash to swing toward the indoor, so that the side of the first window sash and the second window sash located outdoors swings toward the indoor, which is convenient for cleaning the first window sash and the second window sash. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a bidirectional folding door and window provided in an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of a three-dimensional structure of a bi-directional folding door and window provided by an embodiment of the present invention rotating toward the outdoors;

[0018] Figure 3 A schematic diagram of a three-dimensional structure of a bi-directional folding door and window provided by an embodiment of the present invention rotating toward the outdoors;

[0019] Figure 4 A schematic front view of the bidirectional folding door and window provided in an embodiment of the present invention;

[0020] Figure 5 for Figure 1 A-direction view in the figure;

[0021] Figure 6 for Figure 1 B view in the figure;

[0022] Figure 7 for Figure 4 C-direction view in;

[0023] Figure 8 A schematic diagram of the three-dimensional structure of the bi-directional folding door and window provided by an embodiment of the present invention when the second window sash is rotated toward the outdoors;

[0024] Fig. 9 A schematic diagram of an exploded structure of a window frame used in an embodiment of the present invention;

[0025] In the figure: 10, window frame; 11, frame body; 12, shell; 20, first window sash; 30, second window sash; 31, slide groove; 32, push assembly; 321, first rod body; 322, second rod body; 323, slider; 33, baffle; 40, driving mechanism; 41, rotating driving member; 42, first transmission assembly; 421, worm; 422, worm wheel; 423, first gear; 424, first sprocket; 425, first chain; 426, second gear; 43, second transmission assembly; 431, rotating shaft; 432, third gear; 433, second sprocket; 434, second chain; 435, fourth gear; 44, clutch transmission member; 441, telescopic driving member; 442, movable gear. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] See also Figures 1 to 3 The bidirectional folding door and window provided by the present invention is now described. The bidirectional folding door and window comprises a window frame 10, a first window sash 20, a second window sash 30 and a driving mechanism 40; the window frame 10 is embedded in a wall; the first window sash 20 is rotatably connected to the inner top wall of the window frame 10; the second window sash 30 is located below the first window sash 20 and is rotatably connected to the bottom wall of the first window sash 20; the driving mechanism 40 is arranged on the window frame 10, and the driving mechanism 40 is connected to the first window sash 20 and the second window sash 30 respectively, and is used to drive the first window sash 20 to swing indoors or outdoors, and is also used to drive the second window sash 30 to swing.

[0029] It should be noted that the top wall and the bottom wall of the first window sash 20 and the second window sash 30 can be arc-shaped surfaces. When the first window sash 20 swings in the window frame 10, the top wall of the first window sash 20 always rotates and fits with the inner top wall of the window frame 10, which can prevent the first window sash 20 from rotating and causing rainwater to penetrate into the window frame 10. The first window sash 20 is connected to a driving mechanism 40 provided on the window frame 10, and the driving mechanism 40 can control the first window sash 20 and the second window sash 30 at the same time. The driving mechanism 40 can control the first window sash 20 to swing outdoors or indoors. When the first window sash 20 swings outdoors, the driving assembly can also control the second window sash 30 to swing toward the direction close to the indoors, so that there is an angle between the second window sash 30 and the first window sash 20, so that the second window sash 30 can cover the upper front area of ​​the window frame 10 outdoors, which is conducive to preventing outdoor rainwater from entering the indoors.

[0030] The beneficial effect of the bidirectional folding door and window provided by the present invention is that: compared with the prior art, the present invention can control the first window sash 20 to swing indoors or outdoors in the window frame 10 through the driving mechanism 40 provided with two driving ends, and control the second window sash 30 to swing at the same time. The first window sash 20 swings outdoors in the window frame 10, which can avoid the occurrence of a gap between the first window sash 20 and the window frame 10. At the same time, the driving mechanism 40 can drive the second window sash 30 to swing, so that the second window sash 30 can cooperate with the first window sash 20 to cover the upper front area of ​​the window frame 10, so as to avoid rainwater flowing into the room along the first window sash 20 and the second window sash 30, and can prevent rainwater from being blown into the room by the outdoor wind, thereby improving the indoor cleanliness; the first window sash 20 can drive the second window sash 30 to swing indoors, so that the side of the first window sash 20 and the second window sash 30 located outdoors swings indoors, which is convenient for cleaning the first window sash 20 and the second window sash 30.

[0031] In one possible implementation, see Figure 1 and Figure 4 The driving mechanism 40 includes a rotary driving member 41, a first transmission assembly 42, a second transmission assembly 43 and a clutch transmission member 44; the rotary driving member 41 is arranged on the window frame 10; the first transmission assembly 42 is connected to the second window sash 30 and is connected to the output end of the rotary driving member 41; the second transmission assembly 43 is arranged on the window frame 10 and is connected to the first window sash 20; the clutch transmission member 44 is arranged on the window frame 10, and has a combined position connecting the first transmission assembly 42 and the second transmission assembly 43, and also has a separated position separated from at least one of the first transmission assembly 42 and the second transmission assembly 43; wherein, in the combined position, the rotary driving member 41 drives the first window sash 20 and the second window sash 30 to swing together, and in the separated position, the rotary driving member 41 drives the second window sash 30 to swing alone.

[0032] It should be noted that the rotary drive member 41 can be a motor, which is arranged on the window frame 10. The rotary drive member 41 is connected to the first transmission assembly 42. The first transmission assembly 42 and the second transmission assembly 43 are both arranged on the window frame 10, and the first transmission assembly 42 and the second transmission assembly 43 are arranged at intervals. The clutch transmission member 44 is arranged on the window frame 10, and can realize the transmission connection and separation of the first transmission assembly 42 and the second transmission assembly 43 by switching the working state. When the clutch transmission member 44 is in the engaged state, the first transmission assembly 42 can drive the second window sash 30 to rotate, and the first transmission assembly 42 can transmit the rotational power of the rotary drive member 41 to the second transmission assembly 43 through the clutch transmission member 44, and the second transmission assembly 43 can drive the first window sash 20 to rotate.

[0033] In one possible implementation, see Figure 4 and Figure 5 The first transmission assembly 42 includes a worm 421, a worm wheel 422, a first gear 423, two first sprocket wheels 424 and a second gear 426; the worm 421 is connected to the output end of the rotating driving member 41; the worm wheel 422 is rotatably arranged on the window frame 10 and is meshed with the worm 421; the first gear 423 is located above the worm wheel 422 and is rotatably arranged on the window frame 10; the two first sprocket wheels 424 are respectively arranged on the worm wheel 422 and the first gear 423, and the two first sprocket wheels 424 are connected by a first chain 425; the second gear 426 is rotatably arranged on the window frame 10, and the second gear 426 is meshed with the first gear 423; wherein the second gear 426 is connected to the second transmission assembly 43 via a clutch transmission member 44 in a combined state.

[0034] It should be noted that the worm 421 is connected to the output end of the rotary drive member 41 and can rotate under the drive of the rotary drive member 41. The thread on the worm 421 is meshed with the worm wheel 422. The structure of the combination of the worm wheel 422 and the worm 421 has a self-locking function, which can turn off the drive of the rotary drive member 41 when the second window sash 30 reaches the specified open position, thereby fixing the position of the second window sash 30. The first gear 423 is rotatably arranged on the outer wall of the window frame 10 and is located above the worm wheel 422. The first gear 423 and the worm wheel 422 are both coaxially connected with a first sprocket 424. The two first sprockets 424 are both connected by a first chain 425. The rotational power of the rotary drive member 41 can be transmitted to the first gear 423 through the two first sprockets 424 and the first chain 425. The second gear 426 is rotatably set on the window frame 10 and meshed with the first gear 423. The second gear 426 can receive the rotational driving force on the first gear 423. The second gear 426 is transmission-connected to the clutch transmission member 44 and can transmit the rotational driving force to the second transmission assembly 43 through the clutch transmission member 44.

[0035] In one possible implementation, see Figure 1 and Figure 6 The second transmission assembly 43 includes a rotating shaft 431, a third gear 432, two second sprockets 433 and a fourth gear 435; the rotating shaft 431 is rotatably provided on the window frame 10 and is connected to the first window sash 20; the third gear 432 is rotatably provided on the window frame 10 and is located between the rotating shaft 431 and the first gear 423; the two second sprockets 433 are respectively provided on the rotating shaft 431 and the third gear 432, and the two second sprockets 433 are connected through a second chain 434; the fourth gear 435 is rotatably provided on the window frame 10 and is meshed with the third gear 432; wherein the fourth gear 435 is connected to the second gear 426 through a clutch transmission member 44 in a combined state.

[0036] It should be noted that, when the clutch transmission member 44 is in the engaged state, the fourth gear 435 can be connected to the clutch transmission member 44, can receive the rotational driving force, and drive the third gear 432 to rotate, the third gear 432 is coaxially connected to one of the second sprockets 433, and the other second sprocket 433 is coaxially connected to the rotating shaft 431. The two second sprockets 433 are connected through the second chain 434, so that the rotational driving force on the third gear 432 is transmitted to the rotating shaft 431, and can drive the rotating shaft 431 to rotate, thereby driving the first window sash 20 to swing in the window frame 10.

[0037] In one possible implementation, see Figure 6 The clutch transmission member 44 includes a telescopic driving member 441 and a movable gear 442 arranged at the output end of the telescopic driving member 441; when the telescopic driving member 441 drives the movable gear 442 to move to mesh with the second gear 426 and the fourth gear 435, a combined state is formed; when the telescopic driving member 441 drives the movable gear 442 to disengage from the second gear 426 and the fourth gear 435, a separated state is formed.

[0038] It should be noted that the telescopic driving member 441 can be a cylinder. When the clutch transmission member 44 is in the engaged state, the telescopic driving member 441 drives the movable gear 442 to mesh with the second gear 426 and the fourth gear 435, and the first transmission assembly 42 transmits the driving force of the rotating driving member 41 to the rotating shaft 431, so that the first window sash 20 swings. When the clutch transmission member 44 is in the disengaged state, the telescopic driving member 441 drives the movable gear 442 to separate from the second gear 426 and the fourth gear 435, and the fourth gear 435 stops rotating, so that the second sprocket 433 remains stationary, the rotating shaft 431 cannot rotate, and the first window sash 20 stops swinging and is in a stationary state. When the first window sash 20 rotates to the outdoors, the clutch transmission member 44 is switched from the engaged state to the disengaged state, and the telescopic driving member 441 drives the movable gear 442 to separate from the second gear 426 and the fourth gear 435. At this time, the first transmission assembly 42 is driven by the rotating driving member 41 to swing the second window sash 30. The rotation angle of the second window sash 30 can be further adjusted after the first window sash 20 stops swinging, so that the second window sash 30 can cooperate with the tilted first window sash 20, which can not only realize the drainage of rainwater, but also prevent external rainwater from being affected by outdoor wind and entering the room through the window frame 10.

[0039] For some examples, see Figure 2 and Figure 7 When the first window sash 20 rotates to the specified position, the movable gear 442 is controlled to separate from the second transmission assembly 43 by the telescopic driving member 441, so that the first window sash 20 stops rotating; the first transmission assembly 42 is driven by the rotating driving member 41 to control the second window sash 30 to rotate. When the first window sash 20 rotates out of the room, the second window sash 30 can form a ramp structure with the first window sash 20, so that rainwater can flow down from the surfaces of the first window sash 20 and the second window sash 30, and the second window sash 30 can block the front of the window frame 10 to prevent rainwater from entering the room due to the influence of external wind.

[0040] In one possible implementation, see Figure 2 and Figure 3 A pushing assembly 32 is connected to the second window sash 30, and the second window sash 30 is rotatably connected to the bottom wall of the first window sash 20. A sliding groove 31 is provided on the side wall of the second window sash 30; one end of the pushing assembly 32 is slidably connected to the sliding groove 31, and the other end is connected to the worm gear 422. The pushing assembly 32 is used to drive the second window sash 30 to swing.

[0041] It should be noted that the second window sash 30 is rotatably connected to the first window sash 20, one end of the push assembly 32 is arranged on the inner wall of the window frame 10, and rotates under the rotation drive of the worm wheel 422, and the other end of the push assembly 32 is slidably connected to the slide groove 31 of the side wall of the second window sash 30, and can push the second window sash 30 to swing while rotating. The worm 421 and the worm 421 can cooperate with each other to realize the self-locking of the push assembly 32. After rotating and pushing the second window sash 30 to rotate to the specified position, the rotating driving member 41 controls the worm 421 to stop rotating, realizes the locking of the worm wheel 422, and realizes the fixing of the push assembly 32. The second window sash 30 is supported by the push assembly 32 and can be fixed at the specified position.

[0042] In one possible implementation, see Figure 2 and Figure 3 The push assembly 32 includes a first rod body 321 and a second rod body 322. One end of the first rod body 321 is connected to the worm gear 422. One end of the second rod body 322 is hinged to the first rod body 321, and the other end is hinged to a slider 323. The slider 323 is slidably connected to the slide groove 31.

[0043] It should be noted that one end of the first rod 321 is rotatably connected to the inner side wall of the second window sash 30 and is connected to the worm gear 422. One end of the second rod 322 is hinged to one end of the first rod 321, and the other end is hinged to a slider 323. The slider 323 slides and fits with the slide groove 31 of the side wall of the second window sash 30. The length of the second rod 322 can be greater than the length of the first rod 321. When the second window sash 30 is in the window frame 10, one end of the first rod 321 is connected to the inner side wall of the window frame 10, and the other end is close to the bottom wall of the window frame 10; the other end of the second rod 322 is close to the bottom wall of the first window sash 20 and is located at one end of the slide groove 31. When the clutch transmission member 44 is in the disengaged state, the telescopic driving member 441 drives the movable gear 442 to separate from the fourth gear 435, and the rotating driving member 41 controls the first rod 321 to rotate, and the first rod 321 drives the second rod 322 to push the inner wall of the slide groove 31, and the slider 323 can slide in the slide groove 31 and drive the second window sash 30 to rotate, so that the second window sash 30 swings, and prevents rainwater on the first window sash 20 from flowing into the room through the second window sash 30. One end of the second window sash 30 is connected to the first window sash 20, and the other end is led to the outside, which can prevent rainwater from entering the room and improve the cleanliness of the room.

[0044] For some examples, see Figure 8The outer wall of the first window sash 20 is close to the inner wall of the window frame 10, the clutch transmission member 44 is in a separated state, and the telescopic driving member 441 drives the movable gear 442 to separate from the first transmission assembly 42 and the second transmission assembly 43. At this time, the first rod body 321 is driven to rotate by the rotating driving member 41, and the second window sash 30 is pushed toward the outside through the second rod body 322, so that the second window sash 30 swings toward the outside, so that the door and window can realize the function of only opening the second window sash 30, and can be adaptively ventilated.

[0045] In one possible implementation, see Figure 2 and Figure 3 Two baffles 33 are rotatably provided on the side wall of the second window sash 30 . The two baffles 33 are respectively located on both sides of the slide groove 31 , and a space for accommodating the push assembly 32 is formed between the two baffles 33 .

[0046] It should be noted that two baffles 33 are provided on the side wall of the second window sash 30, and the two baffles 33 are respectively located indoors and outdoors, and the two baffles 33 have spaces for accommodating the first rod 321 and the second rod 322. When the first window sash 20 and the second window sash 30 rotate toward the outdoors, the first rod 321 squeezes the baffle 33 on one side of the indoor space and causes the baffle 33 to rotate; when the first window sash 20 and the second window sash 30 rotate toward the indoor space, the first rod 321 squeezes the baffle 33 on one side of the outdoor space and causes the baffle 33 to rotate. The baffle 33 can form a seal with the second window sash 30, and when the door and window are closed, the door and window can be sealed to prevent outside air from entering the room from the installation gap of the push assembly 32.

[0047] In a possible implementation, a torsion spring is provided on the rotating shaft 431 of the baffle 33 .

[0048] It should be noted that a torsion spring is provided on the rotating shaft 431 of the baffle 33. When the baffle 33 is not squeezed by the first rod body 321, the baffle 33 remains perpendicular to the side wall of the second window sash 30 and can block the push assembly 32. When the first window sash 20 and the second window sash 30 are both located in the window frame 10, the baffle 33 can cooperate with the first window sash 20 and the second window sash 30 to achieve sealing of doors and windows to prevent outside air from entering the room.

[0049] In one possible implementation, see Fig. 9 The window frame 10 includes a frame body 11 and two shells 12 . The two shells 12 are respectively connected to the outer walls of the frame body 11 on opposite sides, and a cavity for accommodating the driving mechanism 40 is opened inside the shells 12 .

[0050] It should be noted that a shell 12 is provided on both side walls of the frame 11, and a cavity for accommodating the driving mechanism 40 is provided inside the shell 12. The shell 12 and the frame 11 are detachably connected to provide an installation position for the driving mechanism 40, and the driving mechanism 40 can be hidden inside the window frame 10, thereby strengthening the protection of the driving mechanism 40 and improving the service life of the device.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Bi-directional folding doors and windows, characterized in that: include: Window frame, embedded in the wall; A first window sash is rotatably connected to the inner top wall of the window frame; A second window sash is located below the first window sash and is rotatably connected to the bottom wall of the first window sash; A driving mechanism, disposed on the window frame, connected to the first window sash and the second window sash respectively, for driving the first window sash to swing indoors or outdoors, and for driving the second window sash to swing; The driving mechanism comprises: A rotary drive member, disposed on the window frame; a first transmission assembly connected to the second window sash and to an output end of the rotary drive member; A second transmission assembly, disposed on the window frame and connected to the first window sash; a clutch transmission member, provided on the window frame, having a combined position connecting the first transmission assembly and the second transmission assembly, and also having a separated position separated from at least one of the first transmission assembly and the second transmission assembly; Wherein, in the combined position, the rotary drive member drives the first window sash and the second window sash to swing together, and in the separated position, the rotary drive member drives the second window sash to swing alone; The top wall and the bottom wall of the first window sash and the second window sash are both arc-shaped surfaces, and when the first window sash swings in the window frame, the top wall of the first window sash always rotates and fits with the inner top wall of the window frame; The second window sash is connected to a push assembly, which is rotatably connected to the bottom wall of the first window sash, and a slide groove is provided on the side wall of the second window sash; one end of the push assembly is slidably connected to the slide groove, and the other end is connected to the worm gear, and the push assembly is used to drive the second window sash to swing.

2. The bi-directional folding door and window according to claim 1, characterized in that: The first transmission assembly comprises: A worm connected to the output end of the rotary drive member; A worm wheel, rotatably disposed on the window frame and meshingly connected with the worm; A first gear, located above the worm gear and rotatably mounted on the window frame; Two first sprockets, respectively disposed on the worm wheel and the first gear, the two first sprockets being connected via a first chain transmission; A second gear, rotatably disposed on the window frame, the second gear being meshed and connected with the first gear; Wherein, the second gear is connected to the second transmission assembly via the clutch transmission member in a coupled state.

3. The bi-directional folding door and window according to claim 2, characterized in that: The second transmission assembly comprises: A rotating shaft, rotatably disposed on the window frame and connected to the first window sash; A third gear, rotatably mounted on the window frame and located between the rotating shaft and the first gear; Two second sprockets are respectively arranged on the rotating shaft and the third gear, and the two second sprockets are connected by a second chain transmission; A fourth gear is rotatably disposed on the window frame and meshedly connected with the third gear; The fourth gear is connected to the second gear via the clutch transmission member in a coupled state.

4. The bi-directional folding door and window according to claim 3, characterized in that: The clutch transmission member includes a telescopic driving member and a movable gear arranged at the output end of the telescopic driving member; the engaged state is formed when the telescopic driving member drives the movable gear to move to mesh with the second gear and the fourth gear; the separated state is formed when the telescopic driving member drives the movable gear to disengage from the second gear and the fourth gear.

5. The bi-directional folding door and window according to claim 1, characterized in that: The push assembly includes a first rod body and a second rod body, one end of the first rod body is connected to the worm gear; one end of the second rod body is hinged to the first rod body, and the other end is hinged with a slider, and the slider is slidably connected in the slide groove.

6. The bi-directional folding door and window as claimed in claim 1, characterized in that: Two baffles are rotatably provided on the side wall of the second window sash, and the two baffles are respectively located on both sides of the slide groove, and a space for accommodating the push assembly is formed between the two baffles.

7. The bi-directional folding door and window according to claim 6, characterized in that: A torsion spring is arranged on the rotating shaft of the baffle.

8. The bidirectional folding door and window according to any one of claims 1 to 7, characterized in that: The window frame comprises a frame body and two outer shells. The two outer shells are respectively connected to the outer walls of the frame body at two opposite sides, and a cavity for accommodating the driving mechanism is provided inside the outer shells.

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