CN114000807A

CN114000807A - Flat-open door and window

Info

Publication number: CN114000807A
Application number: CN202111188428.XA
Authority: CN
Inventors: 宦志伟; 李超; 曾富强
Original assignee: Aluk Curtain Wall Door & Windo
Current assignee: Aluk Curtain Wall Door & Windo
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-02-01

Abstract

The application discloses a casement door and window, which comprises a window frame, a sliding chute, a sliding rail and two window sashes, wherein each window sash comprises an edge plate and a plurality of window sash units which are hinged with each other; a connecting mechanism convenient for disassembly is arranged between one side face of the edge plate and the inner side wall of the window frame, and the other side face of the edge plate is hinged with the adjacent window sash unit; the casement unit includes the slider and two articulated glass frames each other that slide the adaptation with the slide rail, and the slider rotates to be connected on the tip that the glass frame kept away from each other, and the glass frame all swings towards the outside of window frame. This application has the effect that increases flat-open door and window's the space of opening, is favorable to promoting flat-open door and window's field of vision and air permeability.

Description

Flat-open door and window

Technical Field

The application relates to the field of glass doors and windows, in particular to a casement door and window.

Background

The casement window and door is a type of window in a house, and a window sash of the casement window and door moves along a certain horizontal direction. The casement doors and windows are mainly divided into push-pull doors and windows and turnover doors and windows, wherein the turnover doors and windows are mostly single-leaf doors and windows, and are supported and fixed by iron rods on window frames after going through mountains and turning upwards when being opened; most of the sliding doors and windows are double-sash, and the sashes slide horizontally or vertically along the groove of the window frame when opening or closing.

The existing push-pull casement door window usually comprises a window frame and two window sashes, sliding grooves are formed in the inner top wall and the inner bottom wall of the window frame, two sliding rails which are in one-to-one correspondence with the window sashes are arranged in the sliding grooves of the window frame, the length directions of the sliding grooves and the sliding rails are parallel to the width direction of the window frame, and the top ends and the bottom ends of the window sashes are respectively located in the two sliding grooves.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the push-pull casement door and window is in an opening state, at least half of the area of the space enclosed by the window frame is positioned under the shielding of the window sash, so that the opening space of the casement door and window is smaller, and the visual field and the ventilation of the casement door and window are poorer in the opening state.

Disclosure of Invention

In order to improve the view and the relatively poor problem of air permeability of flat-open door and window when opening the state, this application provides a flat-open door and window.

The application provides a flat-open door and window adopts following technical scheme:

a casement door and window comprises a window frame, a sliding chute, a sliding rail and two window sashes, wherein each window sash comprises an edge plate and a plurality of window sash units which are hinged with each other; a connecting mechanism convenient to disassemble is arranged between one side face of the edge plate and the inner side wall of the window frame, and the other side face of the edge plate is hinged with the adjacent window sash unit; the window sash unit comprises a sliding block matched with the sliding rail in a sliding mode and two glass frames hinged to each other, the sliding block is rotatably connected to the end portions, far away from each other, of the glass frames, and the glass frames swing towards the outer sides of the window frames.

Through adopting above-mentioned technical scheme, when flat-open door and window is opened to needs, connect the inside wall of edge board and window frame through coupling mechanism earlier, order about the slider again and slide and be close to corresponding edge board gradually along the length direction of slide rail, drive the outside swing of a plurality of glass frames towards the window frame simultaneously, and make a plurality of glass frames of same casement coincide each other, and two casement coincide respectively in the both ends of window frame along width direction, thereby make the space that the window frame encloses only the subtotal be under the sheltering from of casement, with this realization increase flat-open door and window's the effect of opening the space, be favorable to promoting flat-open door and window's field of vision and air permeability.

Optionally, a gauze is connected between the edge plate and the glass frame far away from the edge plate, a cavity is formed in the edge plate, and an elastic winding device for winding the gauze is arranged in the cavity;

when the elastic winding device winds the gauze, the glass frames rotate and are mutually overlapped.

By adopting the technical scheme, because the adjacent glass frames are hinged with each other, a gap exists between the two adjacent glass frames in the closed state, so that mosquitoes and sundries can easily enter the room through the gap. When the overlapped glass frame is unfolded, the glass frame drives the screen window to be unfolded and cover the glass frame, so that mosquitoes and sundries entering a room can be reduced; when opening flat-open door and window, the elasticity coiling mechanism is to the rolling of gauze, and drives the glass frame through elastic force and take place to rotate to drive a plurality of glass frames coincide each other, make the rolling of gauze and the folding of glass frame go on in step, be favorable to simplifying the degree of difficulty of opening of flat-open door and window.

Optionally, the elastic winding device includes a fixing rod connected to the inside of the edge plate, a winding drum sleeved on the fixing rod, an elastic member for driving the winding drum to rotate and a locking assembly for limiting winding of the gauze in a closed state;

the gauze is wound on the winding drum.

By adopting the technical scheme, when the casement door and window is closed, the glass frame is pushed to be unfolded, the glass frame drives the gauze to be separated from the winding drum and spread on the surface of the window sash, meanwhile, the winding drum also rotates to enable the elastic piece to be in a stretching state, and then the locking assembly limits the winding of the gauze, so that the closing state of the casement door and window can be stably kept; when opening flat-open door and window, withdraw the restriction of locking Assembly to the gauze earlier, the elastic component begins to retract and drives the winding drum through elastic force and reverse and the rotation that resets, and then twines the gauze on the winding drum, and the gauze drives the glass frame simultaneously and takes place the swing to it takes place to fold to drive a plurality of glass frames.

Optionally, the elastic element comprises a coil spring sleeved on the fixed rod, one end of the coil spring is connected to the fixed rod, and the other end of the coil spring is clamped with the winding drum and connected with the end of the gauze.

Through adopting above-mentioned technical scheme, at the in-process that the screen window was taken out the edge board, the winding drum can take place rotatoryly, and the coil spring of above-mentioned connected mode can receive tensile deformation simultaneously, if cancel when applying the exogenic force in the glass frame, the coil spring begins to reset the retraction and drives the winding drum counter rotation through elastic force, and then drives the gauze and twine on the winding drum, also can drive a plurality of glass frames folding during the expert.

Optionally, the locking assembly includes an installation plate movably connected to the inner wall of the cavity, a pawl hinged to the installation plate, a ratchet fixedly sleeved on the winding drum, and a first reset member for driving the pawl to reset; the pawl is in meshed fit with the ratchet wheel.

Through adopting above-mentioned technical scheme, after a plurality of glass frames expand, order about the mounting panel and be close to the winding drum, until ratchet and pawl meshing for the winding drum can only rotate towards a direction, and the rotation that resets of restriction winding drum, thereby make gauze and a plurality of glass frames expand steadily, and keep flat-open door and window's closed condition steadily.

Optionally, the window frame is provided with a limiting mechanism, and the limiting mechanism comprises a limiting rod hinged on the inner side wall of the window frame and a locking piece for limiting the swinging of the limiting rod;

when the limiting rod swings to a horizontal state, the limiting rod is attached to all the glass frames of the window sashes.

Through adopting above-mentioned technical scheme, expand the back at a plurality of glass frames, order about the gag lever post and take place the swing, until the gag lever post is in the horizontality, the gag lever post laminating is kept away from the side of another casement in the casement, and then the folding of a plurality of glass frames of restriction for a plurality of glass frames can slide in the window frame as a whole, further increase the mode that flat-open door and window opened or closed. When a plurality of glass frames need to be folded, the limiting rod is driven to rotate until the limiting rod is in a vertical state, and then the limiting rod is limited by the locking piece to rotate, so that the plurality of glass frames can be folded.

Optionally, a transmission assembly is arranged between the mounting plate and the edge plate;

when the limiting rod swings to a horizontal state, the transmission assembly drives the mounting plate to move towards the winding drum, and the ratchet wheel is meshed with the pawl.

Through adopting above-mentioned technical scheme, when the gag lever post swung to the horizontality, transmission assembly drove the mounting panel and moved towards the winding drum, and made ratchet and pawl meshing, and then restricted the rotation that resets of winding drum, need not the manual work or pressed the installation piece with the help of the foreign object to reduce the dislocation displacement between gauze and the glass frame, make the gauze connect steadily on the glass frame.

Optionally, the drive assembly include the rigid coupling in movable block on the mounting panel with be used for ordering about the second that the movable block resets, the edge plate seted up with the activity hole of cavity intercommunication, the movable block slide in the activity hole, the movable block seted up with the inclined plane of gag lever post butt adaptation.

By adopting the technical scheme, in the process that the limiting rod swings to the horizontal state, the limiting rod can extrude the inclined plane of the movable block and push the movable block and the mounting plate to synchronously move towards the ratchet wheel, and when the limiting rod is in the horizontal state, the ratchet wheel is meshed with the pawl, and the limiting rod is blocked at the movable hole, so that the reset rotation of the winding drum can be stably limited.

Optionally, the retaining member includes two magnetites that magnetism attracts mutually, arbitrary the magnetite connect in on the inside wall of window frame, another the magnetite connect in the gag lever post tip.

Through adopting above-mentioned technical scheme, when the gag lever post is in vertical state, two magnetite pass through magnetic force inter attraction to make the gag lever post keep vertical state steadily, and the operating procedure of unblock or locking gag lever post is simple, is convenient for open or close flat-open door and window.

Optionally, a rubber column for buffering collision is connected to the side wall of the glass frame.

Through adopting above-mentioned technical scheme, at the folding in-process of glass frame, the rubber column can cushion the collision between the glass frame, is favorable to prolonging flat-open door and window's life.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sliding blocks are driven to slide on the sliding rails, the glass frames are driven to swing towards the outer sides of the window frames, and the two window sashes are respectively overlapped at the two ends of the window frames along the width direction, so that only a small part of the space enclosed by the window frames is shielded by the window sashes, the effect of increasing the opening space of the casement window and door is achieved, and the visual field and the ventilation of the casement window and door are favorably improved;

2. the screen is driven to be wound on the winding drum through the reset contraction of the coil spring, and the glass frames are driven to rotate and mutually overlapped, so that the winding of the screen and the folding of the glass frames are synchronously carried out, and the opening difficulty of the casement door and window is facilitated to be simplified;

3. through rotating the gag lever post to promote movable block and mounting panel through the gag lever post and be close to the ratchet, until ratchet and pawl meshing, and the gag lever post laminating in one side of a plurality of glass frames, can restrict the folding of a plurality of glass frames and the rotation that resets of receipts reel, make a plurality of glass frames can steadily slide in the window frame as whole and in step, further increase the mode that flat-open door and window opened or closed.

Drawings

Fig. 1 is an overall structure schematic diagram of a closing state of a casement door and window according to an embodiment of the application.

Fig. 2 is a structural schematic diagram of an opening state of a casement door and window after a screen is hidden.

Fig. 3 is a schematic structural diagram of a window sash according to an embodiment of the present application.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

FIG. 5 is a schematic view of a partial structure of a window frame according to an embodiment of the present invention.

Fig. 6 is a schematic sectional view taken along line B-B in fig. 1.

Fig. 7 is a partially enlarged schematic view of a portion C in fig. 6.

FIG. 8 is a partial schematic structural diagram of an elastic rolling device and a transmission assembly according to an embodiment of the present application.

FIG. 9 is a schematic view of a partial cross-sectional structure of an edge plate, an elastic rolling device and a transmission assembly according to an embodiment of the present application.

Reference numerals: 1. a window frame; 11. a chute; 12. a slide rail; 13. caulking grooves; 21. an edge plate; 211. a cavity; 212. hinging the ear plate; 213. a horizontal bar; 214. coiling and sewing; 215. a movable hole; 216. a guide groove; 22. a window sash unit; 221. a slider; 222. a glass frame; 2221. a rubber column; 3. a connecting mechanism; 31. hooking; 32. a hanging rod; 4. a limiting mechanism; 41. a limiting rod; 42. a magnet; 5. a screen; 6. an elastic winding device; 61. fixing the rod; 62. winding the roll; 63. a coil spring; 64. a locking assembly; 641. mounting a plate; 6411. a hinged lever; 642. a pawl; 643. a ratchet wheel; 644. a torsion spring; 7. a transmission assembly; 71. a movable block; 711. a guide block; 72. a spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The embodiment of the application discloses flat-open door and window. Referring to fig. 1 and 2, the casement window includes a window frame 1, a sliding groove 11, a sliding rail 12, and two sashes. The sliding grooves 11 are provided with two, one sliding groove 11 is arranged on the inner top wall of the window frame 1, and the other sliding groove 11 is arranged on the inner bottom wall of the window frame 1. The slide rail 12 is fixed on the bottom wall of the slide groove 11 through screws, and each slide groove 11 is correspondingly provided with two slide rails 12, the two slide rails 12 respectively correspond to the two sashes, and the length directions of the slide rails 12 and the slide grooves 11 are parallel to the width direction of the window frame 1.

Referring to fig. 1 and 2, the window sash includes an edge plate 21 and a plurality of window sash units 22 hinged to each other by hinges. The edge plate 21 has a hollow rectangular parallelepiped shape, i.e., the edge plate 21 has a cavity 211 therein. A connecting mechanism 3 convenient for disassembly is arranged between one side face of the edge plate 21 and the inner side wall of the window frame 1, the other side face of the edge plate is hinged with the adjacent window sash unit 22 through hinges, and the edge plates 21 of the two window sashes are detachably connected with the two opposite inner side walls of the window frame 1 respectively.

Referring to fig. 2 and 3, the axial direction of the hinge axis of two adjacent sash units 22 is parallel to the height direction of the window frame 1, the sash units 22 include a sliding block 221 slidably fitted to the sliding rail 12 and two glass frames 222 hinged to each other through a hinge, and the glass frames 222 are used for embedding glass. The four sliding blocks 221 are cylindrical, and the sliding blocks 221 are embedded in the sliding rail 12 and move along the length direction of the sliding rail 12. The sliding blocks 221 are rotatably connected to the end portions of the glass frames 222 away from each other, each glass frame 222 corresponds to two sliding blocks 221, one sliding block 221 is arranged on the top wall of the glass frame 222, the other sliding block 221 is arranged on the bottom wall of the glass frame 222, and the glass frame 222 swings towards the outer side of the window frame 1. The window frame 1 is provided with a limiting mechanism 4, and the limiting mechanism 4 is used for limiting the glass frame 222 to swing.

When flat-open door and window is opened to needs, connect the inside wall of edge board 21 and window frame 1 through coupling mechanism 3 earlier, order about slider 221 again and slide and be close to corresponding edge board 21 gradually along the length direction of slide rail 12, drive the outside swing of a plurality of glass frames 222 towards window frame 1 simultaneously, and make a plurality of glass frames 222 of same casement coincide each other, and two casement coincide respectively at window frame 1 along width direction's both ends, thereby make the space that window frame 1 encloses only the minority be in under sheltering from of casement, with this effect of opening the space that realizes increasing flat-open door and window, be favorable to promoting flat-open door and window's the field of vision and air permeability. Meanwhile, the edge plate 21 and the window frame 1 are separated through the connecting structure, and the swing of the glass frames 222 is limited through the limiting mechanism 4, so that the glass frames 222 can slide in the window frame 1 as a whole, and the opening or closing mode of the casement window is further increased.

Referring to fig. 4 and 5, the connection mechanism 3 includes a hook 31 hinged to the edge plate 21 and a hanging rod 32 hooked and adapted to the hook 31, hinge ear plates 212 are welded to both sides of the hook 31 on the side wall of the edge plate 21 close to the inner side wall of the window frame 1, a horizontal rod 213 is inserted between the two hinge ear plates 212, the axial direction of the horizontal rod 213 is parallel to the thickness direction of the window frame 1, and one end of the horizontal rod 213 protrudes out of the edge plate 21 and is connected with a handle. The end of the hook 31 is fixedly sleeved on the horizontal rod 213, so that the hook 31 swings around the axis of the horizontal rod 213. The inner wall of the window frame 1 is provided with a caulking groove 13, two ends of the hanging rod 32 are respectively fixed on two opposite inner walls of the caulking groove 13, and the length direction of the hanging rod 32 is parallel to the axial direction of the horizontal rod 213.

When the edge plate 21 and the window frame 1 need to be connected, the pioneer makes the edge plate 21 attached to the inner side wall of the window frame 1, then the horizontal rod 213 is rotated by the handle, and the hook 31 is driven to swing until the hook 31 is hooked on the hanging rod 32, so that the edge plate 21 and the window frame 1 can be connected, and the relative movement between the two is limited; when the edge plate 21 and the window frame 1 need to be detached, the horizontal rod 213 is rotated by the handle, and the hook 31 is driven to swing until the hook 31 is separated from the hanging rod 32, so that the edge plate 21 and the window frame 1 can be detached, and the operation of connecting and detaching the edge plate 21 and the window frame 1 is simple, thereby facilitating the operation of a user.

Referring to fig. 1 and 5, the restricting mechanism 4 includes a restricting lever 41 hinged to an inner side wall of the window frame 1 and a locking member for restricting the swinging of the restricting lever 41. The number of the limiting rods 41 is four, and the limiting rods 41 are arranged on one sides, away from each other, of the two sashes. Each window sash corresponds to two limiting rods 41, the two limiting rods 41 are respectively hinged to the two inner side walls of the window frame 1, the axial direction of the hinge axis of each limiting rod 41 is parallel to the thickness direction of the window frame 1, and the sum of the length sizes of the two limiting rods 41 is equal to the width size of the window frame 1. When the limiting rod 41 swings to the horizontal state, the limiting rod 41 is attached to all the glass frames 222 of the window sashes. The locking piece comprises two magnets 42 with attractive magnetism, wherein any one magnet 42 is connected to the inner side wall of the window frame 1 in an embedding mode, and the other magnet 42 is connected to the end part of the limiting rod 41 in an embedding mode.

After the glass frames 222 are unfolded, the limiting rod 41 is driven to swing until the limiting rod 41 is in a horizontal state, the limiting rod 41 is attached to the side face, away from the other window sash, of the window sash, folding of the glass frames 222 is further limited, the glass frames 222 can slide in the window frame 1 as a whole, and the opening or closing mode of the casement window is further increased. When a plurality of glass frames 222 need to be folded, the limiting rod 41 is driven to rotate until the limiting rod 41 is in a vertical state, the two magnets 42 attract each other through magnetic force, the limiting rod 41 is stably kept in the vertical state, the plurality of glass frames 222 can be folded, and the operation steps of unlocking or locking the limiting rod 41 are simple, so that the side-hung door and window can be conveniently opened or closed.

Referring to fig. 1 and 6, since the adjacent glass frames 222 are hinged to each other, a gap exists between the adjacent two glass frames 222 in the closed state, so that mosquitoes and other things can easily enter the room through the gap. In order to prevent mosquitoes and other objects from entering the room as much as possible, a screen 5 is connected between the edge plate 21 and the glass frame 222 far away from the edge plate 21, and the screen 5 is arranged on one side of the two window sashes close to each other. The screen 5 is attached to the bezel 222 at one end by screws or welding and is rolled up in the cavity 211 of the edge plate 21 at the other end.

Referring to fig. 7 and 8, the edge plate 21 is provided with a winding slit 214 communicated with the cavity 211, the winding slit 214 is used for the screen 5 to pass through, and the edge plate 21 is provided with an elastic winding device 6 for winding the screen 5 in the cavity 211. When the elastic winding device 6 winds the screen 5, the plurality of glass frames 222 rotate and are overlapped with each other. In order to absorb the collision between the glass frames 222 during the winding process, rubber posts 2221 for absorbing the collision are adhesively attached to the sidewalls of the glass frames 222.

Referring to fig. 7 and 8, the elastic winding device 6 includes a fixing rod 61 connected to the inside of the edge plate 21, a winding drum 62 sleeved on the fixing rod 61, an elastic member for driving the winding drum 62 to rotate again, and a locking assembly 64 for limiting the winding screen 5 in a closed state. The fixing bar 61 has one end connected to the inner top wall of the cavity 211 and the other end connected to the inner bottom wall of the cavity 211, and the axial direction of the fixing bar 61 is parallel to the height direction of the edge plate 21.

Referring to fig. 7 and 8, the winding drum 62 is rotatable about the axis of the fixing lever 61, and the screen 5 is wound around the winding drum 62. The elastic element comprises a coil spring 63 sleeved on the fixing rod 61, and most of the coil spring 63 is located between the outer wall of the fixing rod 61 and the inner wall of the winding barrel 62. The number of the coil springs 63 is two, the two coil springs 63 are respectively sleeved at two ends of the fixing rod 61, one end of each coil spring 63 is connected to the fixing rod 61, and the other end of each coil spring 63 is clamped with the winding drum 62 and connected with the end of the gauze 5.

Referring to fig. 7 and 8, the locking assembly 64 includes a mounting plate 641 movably coupled to the inner wall of the cavity 211, a pawl 642 hinged to the mounting plate 641, a ratchet 643 fixedly secured to the take-up spool 62, and a first reset member for resetting the pawl 642. The mounting plate 641 moves in the width direction of the window frame 1, and a hinge bar 6411 is welded to the mounting plate 641, and the axis of the hinge bar 6411 is parallel to the height direction of the window frame 1. The pawl 642 is sleeved on the hinge rod 6411 such that the pawl 642 swings around the axial direction of the hinge rod 6411 and the pawl 642 is engaged with the ratchet 643. The first restoring member includes a torsion spring 644 sleeved on the hinge rod 6411, one end of the torsion spring 644 is connected to the mounting plate 641, and the other end is connected to the pawl 642.

When the casement door and window is closed, the glass frame 222 is pushed to be unfolded, the glass frame 222 drives the screen 5 to be separated from the winding drum 62 and spread on the surface of the window sash, meanwhile, the winding drum 62 also rotates, the coil spring 63 is in a stretching state, the mounting plate 641 is driven to be close to the winding drum 62 until the ratchet 643 is meshed with the pawl 642, the winding drum 62 can only rotate towards one direction, the reset rotation of the winding drum 62 is limited, the closing state of the casement door and window can be stably kept, and meanwhile, the screen window is unfolded and covered on the glass frame 222, so that mosquitoes and sundries entering the indoor space can be reduced; when opening flat-open door and window, pioneer makes mounting panel 641 keep away from receipts reel 62 to cancel the external force that exerts on glass frame 222, wind spring 63 begins to retract and drives through elastic force that receipts reel 62 is reverse and the rotation that resets, and then twines gauze 5 on receipts reel 62, and gauze 5 drives glass frame 222 and takes place the swing simultaneously, and drive a plurality of glass frames 222 and take place to fold, make the rolling of gauze 5 and the folding of glass frame 222 go on in step, be favorable to simplifying the degree of difficulty of opening of flat-open door and window.

Referring to fig. 8 and 9, in order to facilitate driving the mounting plate 641 to approach the winding drum 62, a transmission assembly 7 is disposed between the mounting plate 641 and the edge plate 21, when the limiting rod 41 swings to the horizontal state, the transmission assembly 7 drives the mounting plate 641 to move towards the winding drum 62, and the ratchet 643 engages with the pawl 642.

Referring to fig. 8 and 9, the transmission assembly 7 includes a movable block 71 fixedly connected to the mounting plate 641 and a second reset member for driving the movable block 71 to reset, the movable block 71 is fixed to the mounting plate 641 by welding, the edge plate 21 is provided with a movable hole 215 communicated with the cavity 211, the length direction of the movable block 71 is parallel to the thickness direction of the window frame 1, the movable block 71 slides in the movable hole 215, and the movable block 71 is provided with an inclined surface adapted to abut against the limiting rod 41.

Referring to fig. 8 and 9, the edge plate 21 has a guide groove 216 formed on an inner wall of the movable hole 215, and a guide block 711 slidably fitted to the guide groove 216 is welded to an inner wall of the movable block 71. The second restoring member includes a spring 72 located in the guide groove 216, and one end of the spring 72 is connected to a side wall of the guide block 711 and the other end is connected to an inner wall of the guide groove 216.

In the process that the limiting rod 41 swings to the horizontal state, the limiting rod 41 presses the inclined surface of the movable block 71, and pushes the movable block 71 and the mounting plate 641 to synchronously move towards the ratchet 643, until the limiting rod 41 is in the horizontal state, the ratchet 643 is meshed with the pawl 642, and the limiting rod 41 is blocked at the movable hole 215, so that the reset rotation of the winding drum 62 can be stably limited. When the limiting rod 41 swings to the vertical state, the spring 72 drives the movable block 71 to return and drives the mounting plate 641 to move away from the winding drum 62 until the ratchet 643 is separated from the pawl 642, so that the glass frame 222 can be folded.

The implementation principle of a flat-open door and window of the embodiment of the application is as follows: when the casement door and window needs to be opened, the hook 31 is driven to rotate firstly until the hook 31 is hooked on the hanging rod 32, the edge plate 21 and the inner side wall of the window frame 1 can be connected, then the limiting rod 41 is connected on the window frame 1 through the magnet 42, the external force applied to the glass frame 222 is removed, meanwhile, the spring 72 drives the ratchet 643 to separate from the pawl 642, the coil spring 63 starts to contract and drives the winding drum 62 to wind the gauze 5, meanwhile, the glass frames 222 swing towards the outer side of the window frame 1, the glass frames 222 of the same window sash are mutually overlapped, and the two window sashes are respectively overlapped at two ends of the window frame 1 in the width direction, so that only a small part of a space surrounded by the window frame 1 is shielded by the window sash, the effect of increasing the opening space of the casement door and window is achieved, and the visual field and the ventilation of the casement door and window are favorably improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a flat-open door and window, includes window frame (1), spout (11), slide rail (12) and two casement, its characterized in that: the sash comprises a border plate (21) and a plurality of sash units (22) hinged to each other;

a connecting mechanism (3) convenient to disassemble is arranged between one side face of the edge plate (21) and the inner side wall of the window frame (1), and the other side face of the edge plate is hinged with the adjacent window sash unit (22);

the window sash unit (22) comprises a sliding block (221) in sliding fit with the sliding rail (12) and two glass frames (222) hinged to each other, the sliding block (221) is rotatably connected to the end portions, far away from each other, of the glass frames (222), and the glass frames (222) swing towards the outer side of the window frame (1).

2. The casement window and door according to claim 1, wherein: a gauze (5) is connected between the edge plate (21) and the glass frame (222) far away from the edge plate (21), a cavity (211) is arranged in the edge plate (21), and an elastic winding device (6) for winding the gauze (5) is arranged in the cavity (211);

when the elastic winding device (6) winds the gauze (5), the glass frames (222) rotate and are mutually overlapped.

3. The casement window and door according to claim 2, wherein: the elastic winding device (6) comprises a fixing rod (61) connected to the inside of the edge plate (21), a winding drum (62) sleeved on the fixing rod (61), an elastic piece used for driving the winding drum (62) to reset and rotate, and a locking component (64) used for limiting the winding of the gauze (5) in a closed state;

the gauze (5) is wound on the winding drum (62).

4. The casement window and door according to claim 3, wherein: the elastic piece comprises a coil spring (63) sleeved on the fixing rod (61), one end of the coil spring (63) is connected to the fixing rod (61), and the other end of the coil spring is clamped with the winding drum (62) and connected with the end of the gauze (5).

5. The casement window and door according to claim 3, wherein: the locking assembly (64) comprises a mounting plate (641) movably connected to the inner wall of the cavity (211), a pawl (642) hinged to the mounting plate (641), a ratchet wheel (643) fixedly sleeved on the winding drum (62) and a first resetting piece for driving the pawl (642) to reset;

the pawl (642) is in meshing fit with the ratchet (643).

6. The casement window and door according to claim 5, wherein: the window frame (1) is provided with a limiting mechanism (4), and the limiting mechanism (4) comprises a limiting rod (41) hinged to the inner side wall of the window frame (1) and a locking piece for limiting the swinging of the limiting rod (41);

when the limiting rod (41) swings to a horizontal state, the limiting rod (41) is attached to all the glass frames (222) of the window sashes.

7. The casement window and door according to claim 6, wherein: a transmission assembly (7) is arranged between the mounting plate (641) and the edge plate (21);

when the limiting rod (41) swings to the horizontal state, the transmission assembly (7) drives the mounting plate (641) to move towards the winding drum (62), and the ratchet wheel (643) is meshed with the pawl (642).

8. The casement window and door according to claim 7, wherein: drive assembly (7) include the rigid coupling in movable block (71) on mounting panel (641) with be used for driving about the second that movable block (71) reset piece, edge board (21) seted up with activity hole (215) of cavity (211) intercommunication, movable block (71) slide in activity hole (215), movable block (71) seted up with the inclined plane of gag lever post (41) butt adaptation.

9. The casement window and door according to claim 6, wherein: the retaining member includes magnetite (42) that two magnetism attract each other, arbitrary magnetite (42) connect in on the inside wall of window frame (1), another magnetite (42) connect in gag lever post (41) tip.

10. A casement window and door according to any one of claims 2 to 9 and further characterised in that: and a rubber column (2221) for buffering collision is connected to the side wall of the glass frame (222).