Window structure capable of being overlapped and turned over

Abstract

A window structure capable of being overlapped and turned over, comprising: a frame; a first window body, which is connected to the frame in a turnover manner; a second window body, which is slidably connected to the first window body, wherein by means of sliding the second window body along the first window body, the second window body and the first window body are overlapped or extended; and a turnover driver, which is connected to the frame and the first window body and used for driving the overlapped first window body and second window body to turn over relative to the frame. The window structure capable of being overlapped and turned over in the present application can be opened by means of both sliding and turning over, such that the window structure can cover a large spatial range when same is opened.

Description

Foldable and flip window structure Technical Field

[0001] The present application relates to the technical field of doors and windows, and in particular to a foldable and flippable window structure. Background Art

[0002] Existing sliding folding windows use an aluminum profile frame as a supporting frame and utilize two slide rails fixed on the supporting frame to guide the windows. The two windows are slid up and down or left and right so that the two windows can be stacked together. However, the two stacked windows cannot be flipped over.

[0003] It should be noted that the above introduction to the background technology is merely for the purpose of providing a clear and complete description of the technical solutions of this application and facilitating understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art.

[0004] Summary of the Invention

[0005] The purpose of this application is to provide a foldable and flippable window structure to solve the problems pointed out in the above background technology or other similar problems.

[0006] An embodiment of the present application provides a foldable and flippable window structure, comprising: a frame; a first window body, flippably connected to the frame; a second window body, slidably connected to the first window body, and the second window and the first window can be overlapped or unfolded by sliding the second window along the first window; and a flipping driver, connected to the frame and the first window, for driving the stacked first window and second window to flip relative to the frame.

[0007] In some embodiments, the window structure includes two sets of slide rails, and the two sets of slide rails are respectively arranged on opposite sides of the first window body and the second window body.

[0008] In some embodiments, opposite sides of the second window are attached to the frame by magnetic attraction, so that the second window can slide along the first window against the frame and provide friction to the second window.

[0009] In some embodiments, the first window and the second window are connected by an elastic component, and the sum of the upward pulling force of the elastic component on the second window and the friction force is basically equal to the gravity of the second window, so as to maintain the second window at any position within the sliding range of the second window.

[0010] In some embodiments, the elastic component includes multiple coil springs, multiple coil spring shafts are provided on the first window, one end of the multiple coil springs are respectively wound around the multiple coil spring shafts, and the other ends of the multiple coil springs are connected to the second window.

[0011] In some embodiments, the window structure also includes a first locking mechanism, which includes a first lock tongue and a first lock body that can be locked to each other, one of the first lock tongue and the first lock body is provided on the first window and the other is provided on the second window, for releasably locking the stacked first window and the second window.

[0012] In some embodiments, the window structure also includes a second locking mechanism, which includes a second lock tongue and a second lock body that can be locked to each other, one of the second lock tongue and the second lock body is provided on the first window body and the other is provided on the frame, and is used to releasably lock the first window body in an unflipped state with the frame.

[0013] In some embodiments, the first window is reversibly connected to the frame via a hinge.

[0014] In some embodiments, the flip actuator is a gas spring, one end of the gas spring is hinged to the frame, and the other end of the gas spring is hinged to the first window.

[0015] In some embodiments, the first window includes a first transparent plate and a first window frame fixed to the inner side of the first transparent plate, and the frame is located on the inner side of the first transparent plate; the second window includes a second transparent plate and a second window frame fixed to the inner side of the second transparent plate, and the second transparent plate is located on the outer side of the first transparent plate; the two sides of the second window frame are respectively slidably connected to the two sides of the first window frame through a set of sliding rails, and the sliding rails are magnetically attached to the frame so that the second window can slide along the first window close to the frame.

[0016] The beneficial effects of the embodiments of the present application include:

[0017] The second window of the present application is slidably connected to the first window, rather than being slidably connected to the frame. Therefore, when the second window slides to overlap with the first window, the second window can be flipped relative to the frame together with the first window, so that the window structure can be both slid open and flipped open, the openable space range is large, and a larger window opening space can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some of the embodiments described in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0019] 1 and 2 are schematic diagrams of a foldable and flippable window structure in a closed state according to an embodiment of the present application;

[0020] 3 and 4 are schematic diagrams of a foldable and flippable window structure in a first sliding and opening state according to an embodiment of the present application;

[0021] 5 and 6 are schematic diagrams of a foldable and flippable window structure in a second sliding and opening state according to an embodiment of the present application;

[0022] 7 and 8 are schematic diagrams of a foldable and flippable window structure in a third sliding open state according to an embodiment of the present application;

[0023] 9 and 10 are schematic diagrams of a foldable and flippable window structure in a first flip-open state according to an embodiment of the present application;

[0024] 11 and 12 are schematic diagrams of a foldable and flippable window structure in a second flip-open state according to an embodiment of the present application;

[0025] 13 and 14 are schematic diagrams of a foldable and flippable window structure in a third flip-open state according to an embodiment of the present application;

[0026] 15 to 17 are schematic diagrams of a first window and a second window stacked in an embodiment of the present application;

[0027] FIG18 is a partial enlarged view of point A in FIG15 ;

[0028] FIG19 is a partial enlarged view of point B in FIG16;

[0029] FIG20 is a partial enlarged view of point C in FIG16;

[0030] FIG21 is a partial enlarged view of point D in FIG17;

[0031] FIG22 is a partial enlarged view of point E in FIG15 ;

[0032] FIG23 is a schematic diagram of the retractable slide rail in the present application in a shortened state;

[0033] FIG24 is a schematic diagram of the retractable slide rail in the present application in an extended state. DETAILED DESCRIPTION

[0034] To help those skilled in the art better understand the technical solutions in this specification, the following will provide a clear and complete description of the technical solutions in the embodiments of this specification, in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this specification, not all of them. All other embodiments derived by those skilled in the art based on the embodiments in this specification without creative effort shall fall within the scope of protection of this specification.

[0035] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements in terms of name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.

[0036] In the embodiments of the present application, the singular forms "a", "the", etc. may include plural forms and should be broadly understood as "a" or "a type" rather than being limited to the meaning of "one"; in addition, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise; in addition, the term "according to" should be understood as "at least in part according to...", and the term "based on" should be understood as "at least in part based on...", unless the context clearly indicates otherwise; in addition, the term "plurality" means two or more, unless otherwise specified.

[0037] In the embodiments of the present application, the use of the adjective or adverb modifiers "horizontal" and "vertical", "up" and "down", "longitudinal" and "lateral", "clockwise" and "counterclockwise", "front" and "back", "left" and "right", "top" and "bottom", "inside" and "outside" is only to facilitate relative reference between multiple groups of terms, and does not describe any specific directional limitation on the modified terms.

[0038] The present invention provides a foldable and flippable window structure comprising a frame, a first window, a second window, and a flip actuator. The first window is flippably connected to the frame, and the second window is slidably connected to the first window. The second window can be slidably connected to the first window, and the second window can be overlapped or unfolded with the first window by sliding the second window along the first window. The flip actuator is connected to the frame and the first window and is used to drive the overlapping first and second windows to flip relative to the frame.

[0039] The second window of the present application is slidably connected to the first window rather than to the frame. Therefore, when the second window slides to overlap with the first window, the second window can be flipped relative to the frame together with the first window, thereby obtaining a larger window opening space.

[0040] It should be noted that the term "window structure" in this application should be understood in a broad sense, referring to any structure that can be opened and closed, including but not limited to windows, doors, etc.

[0041] The following describes the implementation of the embodiments of the present application with reference to the accompanying drawings.

[0042] As shown in Figures 1 and 2, the foldable and flippable window structure includes a frame 1, a first window 2, a second window 3 and a flipping drive 4. The inner space of the frame 1 can be covered by the first window 2 and the second window 3. By sliding the second window 3, a part of the inner space can be opened. By using the flipping drive 4 to flip the first window 2 and the second window 3, the entire inner space can be opened.

[0043] The frame 1 shown in Figures 1 and 2 is generally a square frame 1, which includes two longitudinal support rods 101 and a transverse support rod 102 that are opposite and spaced apart. The two longitudinal support rods 101 are respectively arranged in the vertical direction, and the transverse support rod 102 is arranged in the horizontal direction. The opposite ends of the transverse support rod 102 are respectively connected to the top ends of the two longitudinal support rods 101.

[0044] The frame 1 can be made of steel, which has high structural strength and can stably support the two windows.

[0045] As shown in FIG1 and FIG2 , the first window body 2 includes a first transparent plate 201 and a first window frame surrounded by two first longitudinal bars 202 and two first transverse bars 203 . The first window frame is fixed to the periphery of the first transparent plate 201 to support the first transparent plate 201 .

[0046] The first transparent plate 201 shown in Figures 1 and 2 is a square plate, which can be made of glass. The first window frame is fixed to the inner side of the first transparent plate 201. On the one hand, it makes the outer side of the first transparent plate 201 facing outward smooth and has no convex structure. On the other hand, it is convenient to set the second window 3 on the outer side of the first transparent plate 201.

[0047] As shown in Figures 1, 2 and 15, a plurality of hinges 204 are provided on the first cross bar 203 above the first window 2. The plurality of hinges 204 are arranged at intervals along the first cross bar 203. The plurality of hinges 204 are connected to the transverse support rod 102 of the frame 1 so that the first window 2 can be flipped relative to the frame 1.

[0048] As shown in Figures 1, 2, 10 and 18, the second window body 3 includes a second transparent plate 301 and a second window frame surrounded by two second longitudinal rods 302 and two second transverse rods 303. The second window frame is fixed to the periphery of the second transparent plate 301 to support the second transparent plate 301.

[0049] The second transparent plate 301 shown in Figures 1 and 2 is a square plate, which can be made of glass. The second window frame is fixed to the inner side of the second transparent plate 301. On the one hand, it makes the outer side of the second transparent plate 301 facing outward smooth without a convex structure, and on the other hand, it facilitates sliding connection with the first window body 2.

[0050] In some embodiments, as shown in Figure 15, the second window 3 and the first window 2 are slidably connected by a slide rail 5. Unlike the prior art in which the slide rail 5 is set between the frame 1 and the window, the present application sets the slide rail 5 between the first window 2 and the second window 3. The slide rail 5 is set independently of the frame 1, so the slide rail 5 will not restrict the flipping of the first window 2 and the second window 3.

[0051] In the example of Figure 15, a group of slide rails 5 are respectively provided on the opposite sides of the first window 2 and the second window 3. Each group of slide rails 5 includes a first guide rail 501 fixed at the longitudinal side edge of the first window 2, a second guide rail 502 fixed at the longitudinal side edge of the second window 3, and a retractable slide rail 504 provided between the first guide rail 501 and the second guide rail 502. The first guide rail 501, the second guide rail 502 and the retractable slide rail 504 all extend longitudinally along the first window 2 or the second window 3.

[0052] As shown in FIG15 , the first guide rail 501 can be fixed on the inner side of the first transparent plate 201 and arranged side by side with the first longitudinal rod 202 . The first guide rail 501 can be fixed on the side of the first longitudinal rod 202 , and a guide groove 503 is formed in the first guide rail 501 .

[0053] As shown in Figures 15 and 22, the second guide rail 502 can be fixed on the inner side surface of the second longitudinal rod 302. The second guide rail 502 includes a first side panel 5021, a second side panel 5022, and a connecting plate 5023 connected between the first side panel 5021 and the second side panel 5022. The first side panel 5021 and the second side panel 5022 are roughly parallel, so the cross-section of the second guide rail 502 is roughly U-shaped. The first side panel 5021 is located on the outside of the first transparent plate 201 and is fixedly connected to the second longitudinal rod 302. The second side panel 5022 is located on the inside of the first transparent plate 201 and is inserted into the guide groove 503. Therefore, the second guide rail 502 and the first guide rail 501 are plugged together.

[0054] As shown in Figures 23 and 24, the retractable slide rail 504 is located within the guide groove 503. The retractable slide rail 504 includes multiple sliding sections that are sequentially slidably connected. These sections can slide relative to each other, thereby extending and retracting the retractable slide rail 504. The innermost sliding section is fixedly connected to the first guide rail 501, while the outermost sliding section is fixedly connected to the second guide rail 502. Therefore, the second guide rail 502 can slide relative to the first guide rail 501 along the guide groove 503. The retractable slide rail 504 extends and retracts as the second guide rail 502 slides, thereby achieving a sliding connection between the first window 2 and the second window 3. Providing two sets of slide rails 5 ensures smoother sliding of the second window 3.

[0055] The present application provides two sets of slide rails so that the window structure of the present application can have a closed state and different open states.

[0056] FIG1 and FIG2 are schematic diagrams of the window structure in a closed state, that is, the second window 3 does not slide toward the first window 2, and the first window 2 and the second window 3 are in an expanded state.

[0057] 3 and 4 are schematic diagrams of the window structure in a first sliding open state, that is, the second window 3 slides toward the first window 2 a first distance, and the first window 2 and the second window 3 are in a partially overlapping state.

[0058] Figures 5 and 6 are schematic diagrams of the window structure in the second sliding open state, that is, the second window 3 slides a second distance toward the first window 2, the first window 2 and the second window 3 are in a partially overlapping state, the second distance is greater than the first distance, and the opening space in the second open state is greater than the opening space in the first open state.

[0059] Figures 7 and 8 are schematic diagrams of the window structure in the third sliding opening state, that is, the second window 3 slides a third distance toward the first window 2, the first window 2 and the second window 3 are in a completely overlapping state, the third distance is greater than the second distance, the third distance is roughly equal to the longitudinal width of the second window 3, and is also the maximum sliding stroke of the second window 3. The opening space in the third opening state is greater than the opening space in the second opening state.

[0060] When the second window 3 slides to different positions, additional auxiliary positioning means can be used to keep the second window 3 at the corresponding position. For example, the operator can hold the second window 3 with his hands to prevent the second window 3 from sliding.

[0061] In order to maintain the second window 3 at any position within the sliding stroke without the aid of external force, in some embodiments, as shown in Figures 2, 4, 6, and 8, the window structure of the present application also includes an elastic component 6 for providing an upward pulling force to the second window 3. The elastic component 6 is connected between the first window 2 and the second window 3. The upward pulling force of the elastic component 6 on the second window 3 is basically equal to the gravity of the second window 3. Therefore, the pulling force can maintain the second window 3 at any position within its sliding stroke, such as maintaining the second window 3 at the position shown in Figure 4 or 6, without the need for external force to prevent the second window 3 from sliding.

[0062] In addition, since the pulling force of the elastic component 6 basically offsets the gravity of the second window 3, the operator only needs to apply a very small force to easily slide the second window 3 upward, which is labor-saving and convenient.

[0063] Optionally, as shown in Figures 2, 4, 6 and 8, the elastic component 6 includes multiple coil springs 601, multiple coil spring shafts 602 are provided on the first window 2, one ends of the multiple coil springs 601 are respectively wound around the multiple coil spring shafts 602, and the other ends of the multiple coil springs 601 are connected to the second window 3.

[0064] In the examples of Figures 15 and 18, multiple spring shafts 602 are arranged at the lower end of the first longitudinal rod 202 of the first window frame, and the multiple spring shafts 602 are arranged in sequence from top to bottom. The multiple spring shafts 602 are covered by a shell 603, and the upper ends of the multiple springs 601 are respectively wound around the multiple spring shafts 602, and the lower ends of the multiple springs 601 extend out of the shell 603 and are connected to the second horizontal rod 303 below the second window frame.

[0065] Optionally, the window structure includes two groups of elastic components 6, which are respectively arranged on opposite sides of the first window 2 and the second window 3 to provide symmetrical pulling forces to the second window 3 from both sides. The sum of the pulling forces of the two groups of elastic components 6 on the second window 3 is basically equal to the gravity of the second window 3.

[0066] In order to prevent the second window 3 from turning outward due to improper force applied by the operator when sliding the second window 3 upward, in some embodiments, as shown in Figures 4, 6, 15, 16 and 17, the opposite sides of the second window 3 are attached to the frame 1 by magnetic attraction, so that the second window 3 can slide close to the frame 1 along the side edge of the first window 2 and provide friction for the second window 3.

[0067] In this embodiment, the sum of the friction force and the upward pulling force of the elastic component 6 on the second window 3 is basically equal to the gravity of the second window 3, so that the second window 3 can hover at any position within its sliding stroke without the need for external force to prevent the second window 3 from sliding.

[0068] Exemplarily, as shown in Figures 15, 16, 17 and 19, the window structure includes a magnetic positioning component 7, which includes a plurality of magnets 701 provided on the second window 3. The plurality of magnets 701 are in contact with and adsorb on the metal frame 1, so that the second window 3 is close to the frame 1 under the action of magnetic force, thereby relying on the magnetic force to limit the outward turning of the second window 3 and provide friction damping for the second window 3.

[0069] For example, the magnetic positioning component 7 is provided on the slide rail 5 so that the slide rail 5 is magnetically attached to the frame 1, thereby enabling the second window 3 to be attached to the frame 1 and slide closely against the frame 1. However, the present application is not limited thereto, and the magnetic positioning component 7 can also be provided on the frame 1, and the slide rail 5 is a metal slide rail, so that the slide rail 5 can also be magnetically attached to the frame 1.

[0070] Optionally, multiple magnets 701 are fixed on the second side plate 5022 of the second guide rail 502, multiple magnets 701 are located outside the guide groove 503 of the first guide rail 501, and multiple magnets 701 are arranged at intervals along the longitudinal direction of the second window 3 on the second side plate 5022 to increase the range of magnetic force and increase the magnetic force between the second window 3 and the frame 1.

[0071] Optionally, a plurality of magnets 701 are arranged at intervals throughout the entire longitudinal width of the second window 3 , so that the entire side edge of the second window 3 is tightly fitted to the frame 1 .

[0072] Although the window structure can be partially opened by sliding the second window 3 toward the first window 2, in some cases it may still not meet the space requirements. In order to provide a larger window opening space, the first window 2 and the second window 3 need to be flipped as a whole. Therefore, when the second window 3 slides to overlap with the first window 2 (as shown in Figure 7), the flip driver 4 can be used to drive the overlapping first window 2 and second window 3 to flip as a whole, thereby opening the entire inner space of the frame 1.

[0073] Figure 8 provides an installation example of the flip actuator 4. There are two flip actuators 4, which are respectively arranged on opposite sides of the first window 2. The flip actuator 4 is a gas spring. One end of the gas spring is hinged to the longitudinal support rod 101 of the frame 1, and the other end of the gas spring is hinged to the first longitudinal rod 202 of the first window 2. Therefore, the gas spring can drive the first window 2 and the second window 3 to flip or reset by telescoping.

[0074] 7 and 8 are schematic diagrams of the window structure in an unflipped state, ie, the piston rod 401 of the gas spring is not extended, the second window 3 is close to the frame 1, and the first window 2 and the second window 3 remain in a vertical state.

[0075] Figures 9 and 10 are schematic diagrams of the window structure in a first flip-open state, i.e., the piston rod 401 of the gas spring extends to a first length, driving the first window 2 and the second window 3 to flip relative to the frame 1 at a first angle. For example, the first angle is 30° or 45°.

[0076] Figures 11 and 12 are schematic diagrams of the window structure in a second flip-open state, where the piston rod 401 of the gas spring extends to a second length, driving the first window 2 and the second window 3 to flip relative to the frame 1 to a second angle. The second length is greater than the first length, and the second angle is greater than the first angle. For example, the second angle is 60°.

[0077] Figures 13 and 14 are schematic diagrams of the window structure in a third flip-open state, i.e., the piston rod 401 of the gas spring extends to a third length, driving the first window 2 and the second window 3 to flip relative to the frame 1 by a third angle. The third length is greater than the second length, and the third angle is greater than the second angle. For example, the second angle is 90°.

[0078] When the first window 2 and the second window 3 are flipped to different positions, the gas spring can keep the first window 2 and the second window 3 in the corresponding position without worrying about the first window 2 and the second window 3 automatically flipping back to their original position. The piston rod 401 of the gas spring drives the first window 2 and the second window 3 to return to their original position by retracting.

[0079] The gas spring is only used as an example of the flip actuator 4 and does not limit the scope of the present application. The flip actuator 4 may also be other retractable driving devices.

[0080] In order to enable the second window 3 and the first window 2 to remain in an overlapping state and prevent the second window 3 from sliding down relative to the first window 2 during the flipping process, in some embodiments, as shown in Figures 8, 16 and 20, the window structure of the present application also includes a first locking mechanism 8 for releasably locking the overlapping first window 2 and second window 3. The first locking mechanism 8 includes a first lock tongue 801 and a first lock body 802 that can be engaged with each other. One of the first lock tongue 801 and the first lock body 802 is provided on the first window 2 and the other is provided on the second window 3. The first lock tongue 801 and the first lock body 802 lock the first window 2 and the second window 3 together by engaging to prevent the second window 3 from accidentally sliding down.

[0081] In the examples of Figures 16 and 20 , a first locking tongue 801 is disposed on a first crossbar 203 below the first window frame. A first hook 803 is provided at the lower end of the first locking tongue 801. A second locking body 902 is disposed on a second crossbar 303 below the second window frame. The first locking body 802 has a second hook 804 that can be ejected and retracted. The second hook 804 has a guide slope facing the first window 2. When the second window 3 slides upward to overlap the first window 2, the first hook 803 slides along the guide slope to below the second hook 804 and engages with the second hook 804, thereby locking the first window 2 and the second window 3 together. To unlock the window, the button 805 on the first locking body 802 is pressed to retract the second hook 804, releasing the engagement between the second hook 804 and the first hook 803. This allows the second window 3 to slide downward to close the window structure.

[0082] FIG16 and FIG20 only provide an example of the first locking mechanism 8, and do not limit the scope of the present application. The first locking mechanism 8 may also be other lockable and unlockable structures.

[0083] In order to prevent the first window 2 and the second window 3 from unexpectedly flipping over, in some embodiments, as shown in Figures 8, 17, and 21, the window structure of the present application also includes a second locking mechanism 9 for releasably locking the first window 2 in an unflipped state with the frame 1. The second locking mechanism 9 includes a second lock tongue 901 and a second lock body 902 that can be engaged with each other. One of the second lock tongue 901 and the second lock body 902 is provided on the first window 2 and the other is provided on the frame 1. The second lock tongue 901 and the second lock body 902 lock the first window 2 and the frame 1 together by being engaged to prevent the first window 2 and the second window 3 from accidentally flipping over.

[0084] In the examples of Figures 17 and 21 , a second locking tongue 901 is provided on the longitudinal support rod 101 of the frame 1. The second locking tongue 901 is connected to a pull ring 903 for pulling the second locking tongue 901 downward. A second lock body 902 is provided on the first longitudinal rod 202 of the first window frame. For example, the second lock body 902 can be provided on the housing 603. The second lock body 902 has a cavity therein, into which the second locking tongue 901 is inserted, thereby locking the first window 2 and the frame 1 together to prevent the first window 2 from flipping relative to the frame 1. When unlocking is required, the pull ring 903 is pulled downward to disengage the second locking tongue 901 from the cavity of the second locking body 902. This releases the engagement between the second locking tongue 901 and the second lock body 902, thereby causing the flip actuator 4 to flip the first window 2 and the second window 3 to open the window structure.

[0085] FIG17 and FIG21 only provide an example of the second locking mechanism 9 and do not limit the scope of the present application. The second locking mechanism 9 may also be other lockable and unlockable structures.

[0086] The window structure of the present application can be applied to any equipment or building that requires windows or doors, such as laboratory cabinets, display cabinets, houses, etc.

[0087] The foregoing is merely an example of the present invention and is not intended to limit the present invention. Various modifications and variations are possible within the scope of the present invention. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A foldable and flippable window structure, comprising: frame; A first window body, connected to the frame in a flippable manner; A second window is slidably connected to the first window, and the second window and the first window are overlapped or unfolded by sliding the second window along the first window; A flipping driver is connected to the frame and the first window, and is used for driving the stacked first window and the second window to flip relative to the frame.

2. The window structure according to claim 1, characterized in that: The foldable and flippable window structure comprises two sets of slide rails, and the two sets of slide rails are respectively arranged on opposite sides of the first window body and the second window body.

3. The window structure according to claim 1, characterized in that: The opposite sides of the second window are attached to the frame by magnetic attraction, so that the second window can slide along the first window against the frame and provide friction force to the second window.

4. The window structure according to claim 3, characterized in that: The first window and the second window are connected by an elastic component, and the sum of the upward pulling force of the elastic component on the second window and the friction force is substantially equal to the gravity of the second window, so as to keep the second window at any position within the sliding travel of the second window.

5. The window structure according to claim 4, characterized in that: The elastic component includes a plurality of coil springs. The first window body is provided with a plurality of coil spring shafts. One ends of the plurality of coil springs are respectively wound around the plurality of coil spring shafts, and the other ends of the plurality of coil springs are connected to the second window body.

6. The window structure according to claim 1, characterized in that: Also includes: The first locking mechanism includes a first locking tongue and a first locking body which can be engaged with each other, wherein one of the first locking tongue and the first locking body is arranged on the first window and the other is arranged on the second window, and is used for releasably locking the stacked first window and the second window.

7. The window structure according to claim 1, characterized in that: Also includes: The second locking mechanism comprises a second locking tongue and a second locking body which can be engaged with each other, wherein the second locking tongue and the second locking body One of the two is arranged on the first window and the other is arranged on the frame, and is used to releasably lock the first window in an unturned state with the frame.

8. The window structure according to claim 1, characterized in that: The first window is connected to the frame via a hinge so as to be flippable.

9. The window structure according to claim 1, characterized in that: The flip driver is a gas spring, one end of the gas spring is hinged to the frame, and the other end of the gas spring is hinged to the first window.

10. The window structure according to claim 1, characterized in that: The first window body comprises a first transparent plate and a first window frame fixed to the inner side of the first transparent plate, and the frame is located on the inner side of the first transparent plate; The second window body comprises a second transparent plate and a second window frame fixed to the inner side of the second transparent plate, and the second transparent plate is located on the outer side of the first transparent plate; The two sides of the second window frame are slidably connected to the two sides of the first window frame through a set of slide rails, and the slide rails are attached to the frame by magnetic attraction, so that the second window body can slide along the first window body close to the frame.

Images