Upper hinge and window

Abstract

The present invention provides an upper hinge and a window, comprising a first connecting seat, a second connecting seat, a connecting rod assembly and a locking mechanism, wherein the connecting rod assembly is movably connected to the first connecting seat and the second connecting seat respectively, and the locking mechanism is installed on the first connecting seat or the connecting rod assembly; the locking mechanism is used to lock or unlock the first connecting seat and the connecting rod assembly, and when the locking mechanism is in a locked state, the first connecting seat is fixed to the connecting rod assembly, or when the locking mechanism is in an unlocked state, the first connecting seat can move relative to the connecting rod assembly; it also includes a window frame, a window sash and a lower hinge, the upper hinge and the lower hinge are respectively installed at the two ends of the window sash, and the upper hinge and the lower hinge are both fixedly connected to the window frame; the upper hinge and the window have the advantages of reasonable structure, easy use and good applicability.

Description

Technical Field

[0001] The invention belongs to the technical field of hardware, and in particular relates to an upper hinge and a window. Background Art

[0002] Windows are a fundamental component of modern buildings. Based on how they open, existing windows can be primarily categorized into several types: casement windows, sliding windows, and suspended windows. With the continuous improvement of people's quality of life, these types of windows are no longer able to meet their evolving needs, resulting in a relative lack of adaptability or ease of use. Specifically, both casement and sliding windows utilize hinges to allow the sash to rotate relative to the frame. Specifically, the axis of rotation for casement windows is longitudinal, while the axis of rotation for suspended windows is transverse.

[0003] Casement windows can be opened 100% and have a large opening area, providing better ventilation and light transmission. However, this type of window also has the following disadvantages: 1. When children are present, an open casement window poses a safety hazard to active children; 2. When no one is inside, an open or forgotten casement window provides a shortcut for criminals to enter the room, resulting in poor theft protection; 3. On rainy days, rainwater can easily drift into the room. Furthermore, while suspended windows can effectively avoid the shortcomings of casement windows, they suffer from insufficient sash opening and a small opening area, resulting in relatively poor ventilation. In summary, if the hinges are improved to combine the advantages of both casement and suspended windows, it would be possible to meet different window usage needs or provide more convenient use, thereby improving the applicability of windows. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide an upper hinge and a window with a reasonable structure, easy use and high applicability.

[0005] In order to solve the above technical problems, the technical solution used in the present invention is:

[0006] An upper hinge comprises a first connecting seat, a second connecting seat, a connecting rod assembly and a locking mechanism, wherein the connecting rod assembly is movably connected to the first connecting seat and the second connecting seat respectively, and the locking mechanism is installed on the first connecting seat or the connecting rod assembly;

[0007] The locking mechanism is used to lock or unlock the first connecting seat and the connecting rod assembly, and when the locking mechanism is in the locked state, the first connecting seat is fixed to the connecting rod assembly. When the locking mechanism is in the unlocked state, the first connecting seat can move relative to the connecting rod assembly, so that the first connecting seat is away from the second connecting seat, and the axes of the first connecting seat and the second connecting seat are relatively parallel.

[0008] As a further improvement to the upper hinge, the connecting rod assembly includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod. The first end of the first connecting rod is slidably connected to the first connecting seat and can rotate relative to the first connecting seat, the second end of the first connecting rod is rotatably connected to the first end of the second connecting rod, the second end of the second connecting rod is slidably connected to the second connecting seat and can rotate relative to the second connecting seat, the first end of the third connecting rod is rotatably connected to the second connecting seat, the second end of the third connecting rod is rotatably connected to the first end of the fourth connecting rod, and the second end of the fourth connecting rod is rotatably connected to the first connecting rod.

[0009] As a further improvement to the upper hinge, a fifth connecting rod is further included, one end of the fifth connecting rod is rotatably connected to the first connecting rod, and the other end of the fifth connecting rod is rotatably connected to the first connecting seat.

[0010] As a further improvement to the upper hinge, the first connecting rod is respectively provided with a first through hole, a second through hole, and a third through hole along its length direction, the second connecting rod is respectively provided with a fourth through hole, a fifth through hole, and a sixth through hole along its length direction, the third connecting rod is respectively provided with a seventh through hole, an eighth through hole, and a ninth through hole along its length direction, the fourth connecting rod is respectively provided with a tenth through hole and an eleventh through hole along its length direction, the second connecting seat is respectively provided with a twelfth through hole and a thirteenth through hole along its length direction, the thirteenth through hole is strip-shaped and extends along the length direction of the second connecting seat, and a fourteenth through hole is provided at one end of the first connecting seat, the fourteenth through hole is strip-shaped and extends along the length direction of the first connecting seat;

[0011] The fourteenth through hole is hinged to the third through hole, the second through hole is hinged to the tenth through hole and forms a first hinge position, the first through hole is hinged to the fourth through hole and forms a second hinge position, the fifth through hole is hinged to the eighth through hole and forms a third hinge position, the sixth through hole is hinged to the thirteenth through hole and forms a fourth hinge position, the twelfth through hole is hinged to the seventh through hole and forms a fifth hinge position, and the ninth through hole is hinged to the eleventh through hole and forms a sixth hinge position.

[0012] As a further improvement to the upper hinge, a fifteenth through hole is further provided on the first connecting rod, and the fifteenth through hole is located between the second through hole and the third through hole. A sixteenth through hole is further provided at the other end of the first connecting seat, and a seventeenth through hole is provided at one end of the fifth connecting rod and an eighteenth through hole is provided at the other end. The seventeenth through hole is hinged to the fifteenth through hole, and the eighteenth through hole is hinged to the sixteenth through hole.

[0013] As a further improvement to the upper hinge, the locking mechanism includes a sliding member, a limiting member and a limiting column. The sliding member is slidably connected to the first connecting seat, and the sliding member can reciprocate in the axial direction relative to the first connecting seat. The limiting member is fixedly connected to the sliding member, and the limiting column is fixedly connected to the first connecting rod. When the locking mechanism is in a locked state, the limiting member and the limiting column form a clamping position.

[0014] As a further improvement to the upper hinge, a groove is provided on the limiting member along its length direction, and an opening is provided at one end or both ends of the groove, the opening is connected to the groove, and the width of the opening gradually increases away from the groove, and when the locking mechanism performs a locking action, the limiting column enters the groove through the opening.

[0015] As a further improvement to the upper hinge, when the first connecting seat and the second connecting seat are in a folded state, the third hinge position, the fourth hinge position and the fifth hinge position form a triangle;

[0016] The second hinge position, the first hinge position and the sixth hinge position form a triangle.

[0017] As a further improvement to the upper hinge, taking the center line of the twelfth through hole and the thirteenth through hole as the reference line, when the first connecting seat and the second connecting seat are in a folded state, the third hinge position is located on the first side of the reference line, and when the first connecting seat is unfolded to the first side relative to the second connecting seat by more than 10 degrees, the third hinge position moves to the second side of the reference line.

[0018] As a further improvement to the upper hinge, the second link and the fourth link are both clamped between the first link and the third link, and the second link and the fourth link are on the same plane. A recess is also provided on one side in the width direction of the second link. When the first connecting seat and the second connecting seat are in a folded state, the fourth link is placed in the recess.

[0019] As a further improvement to the upper hinge, the first through hole and the fourth through hole are hingedly connected through a second hinge shaft to form a second hinge position, the second hinge shaft includes a first shaft body and a second shaft body, the first shaft body is fixedly connected to the second shaft body, and the axis center line of the first shaft body deviates from the axis center line of the second shaft body, and the second hinge shaft rotates relative to the first connecting rod and the second connecting rod.

[0020] As a further improvement to the upper hinge, the second connecting seat includes a first substrate and a second substrate. Relative to the thickness direction of the first substrate or the second substrate, the first substrate and the second substrate are overlapped and fixed, and / or the first substrate and the second substrate are integrally formed, the twelfth through hole and the thirteenth through hole both pass through the first substrate or the second substrate, and the width of the first substrate is smaller than the width of the second substrate.

[0021] As a further improvement to the upper hinge, the second connecting seat further includes a first reinforcing plate, which is superimposed on the first base plate and fixedly connected to the first base plate and / or the second base plate;

[0022] With respect to the width direction of the first substrate, the first reinforcing plate is located on one side of the thirteenth through hole, and one side of the first reinforcing plate protrudes out of the first substrate.

[0023] As a further improvement to the upper hinge, a second reinforcing plate is further included, the second reinforcing plate being superimposed on the first base plate and fixedly connected to the first base plate and / or the second base plate;

[0024] The second reinforcing plate is located on one side of the twelfth through hole relative to the width direction of the first substrate, and one side of the second reinforcing plate protrudes outside the first substrate;

[0025] And / or, the twelfth through hole passes through the first substrate, the second substrate and the second reinforcing plate.

[0026] A window comprising a window frame, a window sash and the upper hinge as described above, wherein the window frame is fixedly connected to the second connecting seat of the upper hinge, and the window sash is fixedly connected to the first connecting seat of the upper hinge;

[0027] When the locking mechanism of the upper hinge is in a locked state, one side of the window sash serves as a rotation fulcrum relative to the width direction of the window frame and can rotate relative to the window frame to open or close the window frame;

[0028] Alternatively, the locking mechanism of the upper hinge is in an unlocked state, and in a height direction relative to the window frame, one end of the window sash is a rotation fulcrum and can be tilted relative to the window frame to open or close the window frame.

[0029] As a further improvement to the window, the lower hinge includes a first mounting seat, a second mounting seat and an arm assembly, and the arm assembly is movably connected to the first mounting seat and the second mounting seat respectively;

[0030] The support arm assembly includes a first support arm, a second support arm and a connecting rod, one end of the first support arm is rotatably connected to the second mounting base, the other end of the first support arm is rotatably connected to the first end of the connecting rod, and the second end of the connecting rod is rotatably connected to the first mounting base;

[0031] One end of the second support arm is slidably connected to the second mounting seat and can rotate relative to the second mounting seat, and the other end is rotatably connected to the first mounting seat, and the first support arm is rotatably connected to the second support arm.

[0032] As a further improvement to the window, the first support arm is provided with a first hinge hole, a second hinge hole and a third hinge hole along its length, the second support arm is provided with a fourth hinge hole, a fifth hinge hole and a sixth hinge hole along its length, the first mounting base is provided with a seventh hinge hole and an eighth hinge hole along its length, the second mounting base is provided with a ninth hinge hole and a tenth hinge hole along its length, the tenth hinge hole being strip-shaped and extending along the length of the second mounting base.

[0033] The first hinge hole is hinged to the ninth hinge hole, the second hinge hole is hinged to the fifth hinge hole, the third hinge hole is hinged to one end of the connecting rod to form an eleventh hinge point, the fourth hinge hole is hinged to the seventh hinge hole, the sixth hinge hole is hinged to the tenth hinge hole, and the sixth hinge hole can be translated along the length direction of the tenth hinge hole, and the eighth hinge hole is hinged to the other end of the connecting rod to form a twelfth hinge point.

[0034] As a further improvement to the window, when the first mounting seat and the second mounting seat are in a folded state, the third hinge hole, the eighth hinge hole and the seventh hinge hole form a triangle;

[0035] The third hinge hole, the fifth hinge hole and the first hinge hole form a triangle.

[0036] As a further improvement to the window, the second support arm is clamped between the first mounting seat and the first support arm, and the second support arm and the connecting rod are on the same plane. A first recessed portion is also provided on one side in the width direction of the second support arm. When the first mounting seat and the second mounting seat are in a folded state, the connecting rod is placed in the first recessed portion. A second recessed portion is also provided on the second support arm on the other side relative to the first recessed portion.

[0037] As a further improvement to the window, the ninth hinge hole and the tenth hinge hole are both provided with hinge bolts, and the second mounting seat is hinged to the first support arm and the second support arm respectively through the hinge bolts;

[0038] In the thickness direction of the lower hinge, one of the hinge pins is loosely fitted with the second mounting seat and the first support arm, and the other hinge pin is loosely fitted with the second mounting seat and the second support arm;

[0039] When the first mounting seat is unfolded relative to the second mounting seat, the arm assembly is unfolded, and the first mounting seat is flatly opened inward relative to the second mounting seat;

[0040] When the first mounting seat and the second mounting seat are in a folded state, the first support arm and the second support arm can drive the hinge bolt to move along the thickness direction of the lower hinge, thereby causing the first support arm and the second support arm to tilt inward relative to the second mounting seat.

[0041] As a further improvement to the window, the end of the first end of the hinge bolt is provided with a chamfered surface, and the chamfered surface allows the axis of the hinge bolt to be inclined relative to the axis of the ninth hinge hole or the tenth hinge hole.

[0042] As a further improvement to the window, with a line connecting the centers of the ninth hinge hole and the tenth hinge hole as a reference line, when the first mounting seat and the second mounting seat are in a folded state, the centers of the third hinge hole and the eleventh hinge point are located on a first side of the reference line, and the centers of the second hinge hole and the fifth hinge hole are located on a second side of the reference line opposite to the first side;

[0043] When the first mounting seat is expanded toward the first side relative to the second mounting seat by more than 10 degrees, the centers of the second hinge hole and the fifth hinge hole cross the reference line toward the first side.

[0044] As a further improvement to the window, when the first mounting seat and the second mounting seat are in a folded state, the beveled surfaces are both oriented toward one side in the width direction of the second mounting seat.

[0045] As a further improvement to the window, a first adjustment mechanism is further provided on the first mounting seat, and the first adjustment mechanism is used to adjust the position of the first mounting seat relative to the second mounting seat.

[0046] As a further improvement to the window, the first adjustment mechanism includes a sleeve, a top screw, a first rotating shaft and a second rotating shaft. The sleeve is fixedly connected to the first mounting seat, the first rotating shaft is fixedly connected to the second rotating shaft, and the axis of the second rotating shaft deviates from the axis of the first rotating shaft. The first rotating shaft is rotatably connected to the sleeve, and the first rotating shaft can move along the axial direction of the sleeve. The second rotating shaft is hinged to the second support arm, the top screw is movably connected to the sleeve, and the top screw is used to lock the first rotating shaft and the sleeve.

[0047] As a further improvement to the window, a reinforcing backplate is further provided on the second mounting seat. The reinforcing backplate is arranged along the axial direction of the second mounting seat, and the reinforcing backplate is fixedly connected to the second mounting seat. A first snap-fit ​​portion is further provided on one side of the width direction of the reinforcing backplate, and the first snap-fit ​​portion is used to form a clamping portion with the window frame. A locking piece is also provided on the reinforcing backplate, and the locking piece can be rotated relative to the reinforcing backplate, so that the locking piece and the first snap-fit ​​portion cooperate with each other to fix the reinforcing backplate to the window frame.

[0048] As a further improvement to the window, a receiving groove is provided on the reinforcing back plate, the locking member is located in the receiving groove, one end of the locking member is rotatably connected to the reinforcing back plate and / or the second mounting seat, and the other end of the locking member is a free end;

[0049] After the locking member is locked with the window frame, the free end of the locking member protrudes from the other side of the reinforcing back plate in the width direction, and the free end abuts against the window frame.

[0050] As a further improvement to the window, it also includes a second adjustment mechanism, which is movably connected to the second mounting seat and is used to adjust the movement distance of the second mounting seat relative to the width direction of the window frame.

[0051] As a further improvement to the window, the second adjustment mechanism includes a fixing seat, an adjusting bolt, and an adjusting nut. The adjusting nut is connected to the fixing seat, the adjusting bolt is rotatably connected to the second mounting seat, and the adjusting bolt is connected to the adjusting nut. The fixing seat is used to be fixed to the window frame.

[0052] As a further improvement to the window, a second buckle portion is provided on both sides of the fixing seat in the width direction, the second buckle portion is used to clamp the fixing seat to the window frame, and the length of the fixing seat is smaller than its width;

[0053] The fixing seat is also provided with a fixing through hole, and a locking piece is provided in the fixing through hole. The locking piece is screwed into the fixing through hole. The second buckle portion is also provided with a receiving groove, and the receiving groove corresponds to the fixing hole. The locking piece is used to fix the fixing seat on the window frame.

[0054] Compared with the prior art, the beneficial effects of the present invention are mainly reflected in: by arranging a locking mechanism that cooperates with the connecting rod assembly on the first connecting seat (for connecting the window sash), further, when the locking mechanism is in a locked state, the first connecting seat is in a non-rotatable state relative to the connecting rod assembly, that is, the other end of the connecting rod assembly can only rotate relative to the second connecting seat (for connecting the window frame), that is, there is only one rotation point on the upper hinge, so that the window sash can only rotate relative to the horizontal, that is, open horizontally; when the locking mechanism is in an unlocked closed state, the first connecting seat can rotate relative to the connecting rod assembly, that is, two rotation points are formed on the upper hinge, so that the longitudinal axis of the window sash can be linearly tilted relative to the longitudinal axis of the window frame, or one end of the window sash in the height direction is tilted relative to the window sash, that is, the window sash is suspended; so that the window can meet different usage requirements, thereby improving the convenience or applicability of the use of the upper hinge and the window. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the accompanying drawings, and the drawings are not drawn to scale with actual size. The emphasis is on illustrating the subject matter of the present invention.

[0056] Figure 1 This is a schematic structural diagram of the upper hinge in the flat-open state in the present invention;

[0057] Figure 2 This is a front structural schematic diagram of the upper hinge in the suspended state in the present invention;

[0058] Figure 3 It is a rear view structural schematic diagram of the upper hinge in the suspended state in the present invention;

[0059] Figure 4 Schematic diagram of the structural decomposition of the upper hinge in the present invention;

[0060] Figure 5 Schematic diagram of the structure of the second hinge shaft in the present invention;

[0061] Figure 6 This is a structural diagram of the lower hinge in the present invention in an expanded state;

[0062] Figure 7 for Figure 6 Schematic diagram of the structure in the upward direction;

[0063] Figure 8 Schematic diagram of the first mounting seat in the present invention in a tilted (suspended) state relative to the second mounting seat;

[0064] Figure 9 This is a schematic diagram of the structure of the present invention when the lower hinge is folded;

[0065] Figure 10 This is a schematic diagram of the casement state of the window of the present invention;

[0066] Figure 11 This is a schematic diagram of the window in the suspended open state according to the present invention. DETAILED DESCRIPTION

[0067] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments given do not limit the present invention. In this embodiment, it should be understood that the directions or positional relationships indicated by terms such as "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention.

[0068] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element. The terms "mounted," "one end," "the other end," and similar expressions used in this invention are for illustrative purposes only.

[0069] like Figure 1-5As shown, this embodiment provides an upper hinge 050, which includes a first connecting seat 001, a second connecting seat 002, a connecting rod assembly 003 and a locking mechanism 004, wherein the connecting rod assembly 003 is movably connected to the first connecting seat 001 and the second connecting seat 002 respectively, and the locking mechanism 004 is installed on the first connecting seat 001 or the connecting rod assembly 003. In this embodiment, the locking mechanism 004 is installed on the first connecting seat 001. Among them, the locking mechanism 004 is used to lock or unlock the first connecting seat 001 and the connecting rod assembly 003. When the locking mechanism 004 is in the locked state, the first connecting seat 001 and the connecting rod assembly 003 are fixed, that is, the first connecting seat 001 is in a non-rotatable or non-movable state relative to the connecting rod assembly 003, that is, at this time there is only one rotation point between the first connecting seat 001 and the second connecting seat 002, and the first connecting seat 001 and the second connecting seat 002 can only form relative rotation through the connecting rod assembly 003, so that the window sash 048 connected to the upper hinge 050 can only rotate relative to the window frame 047, or in other words, the rotation axis of the window sash 048 is in a longitudinal state at this time, so that the window sash 048 rotates relative to this longitudinal or vertical rotation axis, that is, the window sash 048 is realized in a horizontally open state.

[0070] like Figure 2-3As shown, further, when the locking mechanism 004 is in the unlocked state, the first connecting seat 001 can move relative to the connecting rod assembly 003, so that the first connecting seat 001 is away from the second connecting seat 002, and the axes of the first connecting seat 001 and the second connecting seat 002 are relatively parallel, thereby realizing the suspended state of the hinge or the window. At the same time, the window is also provided with a lower hinge 049 that cooperates with the upper hinge 050, that is, the first connecting seat on the lower upper hinge 050 rotates horizontally relative to the second connecting seat, or the first connecting seat on the lower hinge 049 can be tilted relative to the second connecting seat; that is, when the locking mechanism 004 is in the unlocked state, there are two rotation points between the first connecting seat 001 and the second connecting seat 002, that is, in addition to the relative rotation between the first connecting seat 001 and the second connecting seat 002 through the connecting rod assembly 003, the first connecting seat 001 can also rotate independently relative to the connecting rod assembly 003, that is, at this time the first connecting seat 001 can no longer cooperate with the connecting rod assembly 003 and constrain the vertical or longitudinal rotation axis of the window sash 048 relative to the window frame 047, that is, at this time the window sash 048 is in a horizontal state or a horizontal state relative to the rotation axis of the window frame 047, thereby realizing the suspended state of the window sash 048. For example, the top of the window sash 048 in the vertical direction is tilted away from the window frame 047 (tilted toward the interior or the exterior), and at the same time, the top edge of the window sash 048 in the width direction is parallel to the top edge of the window frame 047 in the width direction, or in other words, the first connecting seat 001 and the second connecting seat 002 on the upper hinge 050 are relatively parallel, and the first connecting seat 001 is away from the second connecting seat 002.

[0071] Specifically, by providing a locking mechanism 004 that cooperates with the connecting rod assembly 003 on the first connecting seat 001 (for connecting the window sash 048), further, when the locking mechanism 004 is in a locked state, the first connecting seat 001 is in a non-rotatable state relative to the connecting rod assembly 003, that is, the other end of the connecting rod assembly 003 can only rotate relative to the second connecting seat 002 (for connecting the window frame 047), that is, there is only one rotation point on the upper hinge 050, so that the window sash 048 can only rotate relative to the horizontal , that is, open horizontally; when the locking mechanism 004 is in the unlocked state, the first connecting seat 001 can be rotated relative to the connecting rod assembly 003, that is, two rotation points are formed on the upper hinge 050, so that the longitudinal axis of the window sash 048 can be linearly tilted relative to the longitudinal axis of the window frame 047, or one end of the window sash 048 in the height direction is tilted relative to the window sash 048, that is, the window sash 048 is suspended; so that the window can meet different usage requirements, thereby improving the convenience or applicability of the upper hinge 050 and the window.

[0072] like Figure 3-4As shown, in a preferred embodiment, the connecting rod assembly 003 includes a first connecting rod 005, a second connecting rod 006, a third connecting rod 007 and a fourth connecting rod 008. The first end of the first connecting rod 005 is slidably connected to the first connecting base 001 and can rotate relative to the first connecting base 001. The second end of the first connecting rod 005 is rotatably connected to the first end of the second connecting rod 006. The second end of the second connecting rod 006 is slidably connected to the second connecting base 002 and can rotate relative to the second connecting base 002. The first end of the third connecting rod 007 is rotatably connected to the second connecting base 002. The second end of the third connecting rod 007 is rotatably connected to the first end of the fourth connecting rod 008. The second end of the fourth connecting rod 008 is rotatably connected to the first connecting rod 005. Further, the fifth connecting rod 009 is further included. One end of the fifth connecting rod 009 is rotatably connected to the first connecting rod 005, and the other end is rotatably connected to the first connecting base 001.

[0073] Specifically, if Figure 4 As shown, the first connecting rod 005 is respectively provided with a first through hole 010, a second through hole 011 and a third through hole 012 along its length direction, the second connecting rod 006 is respectively provided with a fourth through hole 013, a fifth through hole 014 and a sixth through hole 015 along its length direction, the third connecting rod 007 is respectively provided with a seventh through hole 016, an eighth through hole 017 and a ninth through hole 018 along its length direction, the fourth connecting rod 008 is respectively provided with a tenth through hole 019 and an eleventh through hole 020 along its length direction, the second connecting seat 002 is respectively provided with a twelfth through hole 021 and a thirteenth through hole 022 along its length direction, the thirteenth through hole 022 is strip-shaped and extends along the length direction of the second connecting seat 002, and a fourteenth through hole 023 is provided at one end of the first connecting seat 001, the fourteenth through hole 023 is strip-shaped and extends along the length direction of the first connecting seat 001.

[0074] Further, such as Figure 3-4 As shown, the fourteenth through hole 023 is hinged to the third through hole 012, the second through hole 011 is hinged to the tenth through hole 019 via a pin to form a first hinge point 024, the first through hole 010 is hinged to the fourth through hole 013 via a pin to form a second hinge point 025, the fifth through hole 014 is hinged to the eighth through hole 017 via a pin to form a third hinge point 026, the sixth through hole 015 is hinged to the thirteenth through hole 022 via a pin to form a fourth hinge point 027, the twelfth through hole 021 is hinged to the seventh through hole 016 via a pin to form a fifth hinge point 028, and the ninth through hole 018 is hinged to the eleventh through hole 020 via a pin to form a sixth hinge point 029. When the upper hinge 050 is unfolded or folded, the pin located in the fourth hinge point 027 can reciprocate along the length of the thirteenth through hole 022.

[0075] like Figure 4As shown, in a preferred embodiment, the first connecting rod 005 is further provided with a fifteenth through hole 030, which is located between the second through hole 011 and the third through hole 012. The other end of the first connecting base 001 is further provided with a sixteenth through hole 031. The fifth connecting rod 009 is provided with a seventeenth through hole 032 at one end and an eighteenth through hole 033 at the other end. The seventeenth through hole 032 is hingedly connected to the fifteenth through hole 030, and the eighteenth through hole 033 is hingedly connected to the sixteenth through hole 031. The provision of the fifth connecting rod 009 can limit the angle at which the window sash 048 can tilt relative to the window frame 047 when the window is suspended. In other words, by providing fifth connecting rods 009 of different lengths, the maximum rotation angle of the first connecting base 001 relative to the first connecting rod 005 can be limited, thereby achieving adjustment of the maximum tilt angle of the window sash 048 relative to the window frame 047 when the window is suspended.

[0076] like Figure 4 As shown, in a preferred embodiment, the locking mechanism 004 includes a sliding member 034, a limiting member 035, and a limiting column 036. The sliding member 034 is slidably connected to the first connecting seat 001, and the sliding member 034 can reciprocate relative to the axial direction of the first connecting seat 001. Specifically, the first connecting seat 001 is provided with a sliding groove (not shown) that cooperates with the sliding member 034. The sliding member 034 is placed in the sliding groove. When the sliding member is driven by an external mechanism, it can drive the limiting member 034 to move along the axial direction of the first connecting seat 001. Furthermore, the limiting member 035 is fixedly connected to the sliding member 034. In this embodiment, the limiting member 035 and the sliding member 034 are integrally formed. The limiting column 036 is fixed to the first connecting rod 005 by riveting, welding or bolts, and the limiting member 035 or the limiting column 036 is spaced a preset distance from the fourteenth through hole 023. When the locking mechanism 004 is in the locked state, the limiting member 035 and the limiting column 036 form a clamping force, so that the first connecting seat 001 cannot rotate relative to the first connecting rod 005, that is, the window sash 048 cannot be opened in a suspended state relative to the window frame 047, but can only be opened horizontally.

[0077] like Figure 4As shown, in a preferred embodiment, a groove 037 is provided on the limiting member 035 along its length direction, and an opening 038 is provided at one end or both ends of the groove 037, the opening 038 is connected to the groove 037, and the width of the opening 038 gradually increases away from the groove 037, that is, the opening 038 is trumpet-shaped; further, when the locking mechanism 004 performs a locking action, the limiting column 036 enters the groove 037 through the opening 038. At this time, the trumpet-shaped opening 038 can guide the movement of the limiting column 036, thereby making it easier for the limiting column 036 to move to the groove 037 on the limiting member 035; that is, the trumpet-shaped opening 038 can make the relative movement of the limiting member 035 and the limiting column 036 not require very high precision, that is, it is easier to achieve the locking action of the locking mechanism 004.

[0078] In a preferred embodiment, when the first connecting seat 001 and the second connecting seat 002 are in a folded state, the third hinge position 026, the fourth hinge position 027 and the fifth hinge position 028 form an obtuse triangle; further, the two corner points of the obtuse triangle are both located on the first connecting seat 001. When it is necessary to change this triangle (at this time the window sash 048 and the window frame 047 are in a closed state), only the third hinge position 026 can be moved (connecting the fifth through hole 014 and the eighth through hole 017 on the second connecting rod 006 and the third connecting rod 007, respectively, or the third hinge position 026 is a corner point of this triangle), or in other words, the third connecting rod 007 is rotated to achieve the change of the corner point. Furthermore, the second hinge position 025, the first hinge position 024, and the sixth hinge position 029 form an obtuse triangle. When this triangle needs to be changed, only the first hinge position 024 (corner point) can be moved, that is, only the first connecting rod 005 can be rotated. When the position of the first hinge position 024 (corner point) changes, the third connecting rod 007 is synchronously driven by the fourth connecting rod 008 to move, thereby changing the position of the third hinge position 026 (corner point). In other words, when the upper hinge 050 is in the folded state, the two triangles on the upper hinge 050 form an interlocking structure, thereby ensuring the stability of the upper hinge 050 after folding, and thus allowing the closed window sash 048 to withstand positive or negative wind pressure from the outside, that is, maintaining the relative airtightness of the window sash 048 relative to the window frame 047.

[0079] like Figure 3As shown, in a preferred embodiment, the second link 006 and the fourth link 008 are both clamped between the first link 005 and the third link 007, and the second link 006 and the fourth link 008 are on the same plane. A recessed portion 039 is also provided on one side in the width direction of the second link 006. When the first connecting seat 001 and the second connecting seat 002 are in a folded state, the fourth link 008 is placed in the recessed portion 039. Furthermore, the fourth hinge position 027 connecting the second link 006 and the second connecting seat 002 is constrained by the thirteenth through hole 022, and the recessed portion 039 on the second link 006 (towards the indoor side) now accommodates the fourth link 008, thereby constraining and blocking the sixth hinge position 029 formed by the ninth through hole 018 and the eleventh through hole 020 hinged by the pin shaft, and preventing it from moving toward the outdoors, thereby further improving the stability of the upper hinge 050 after folding; secondly, the second link 006 and the fourth link 008 are both clamped between the first link 005 and the third link 007, and the second link 006 and the fourth link 008 are on the same plane, which also makes the structure of the upper hinge 050 relatively more compact after storage.

[0080] Furthermore, in a preferred embodiment, with the center line connecting the twelfth through hole 021 and the thirteenth through hole 022 as the reference line, when the first connecting seat 001 and the second connecting seat 002 are in the folded state, the third hinge position 026 is located on the first side of the reference line. When the first connecting seat 001 is unfolded to the first side relative to the second connecting seat 002 by more than 10 degrees, the third hinge position 026 moves to the second side of the reference line. Specifically, the third hinge position 026, the fourth hinge position 027, and the fifth hinge position 028 form a triangle. When the triangle needs to be changed, the fifth hinge position 028, as a corner point of the triangle, is relatively fixed, while the fourth hinge position 027 can move relative to the thirteenth through hole 022 (the strip-shaped hole). Therefore, the change of the triangle can be achieved by moving the third hinge position 026 (and the fourth hinge position 027 moves synchronously with the change). Specifically, when the first connecting base 001 is unfolded more than 10 degrees relative to the second connecting base 002 toward the first side, the third hinge position 026 is moved to the second side of the reference line. In other words, when the upper hinge 050 is folded, the sixth hinge position 029 is prevented from moving toward the interior of the room. This means that the second link 006, the third link 007, and the fourth link 008 cooperate with each other to form a self-locking mechanism. This allows the closed window sash 048 to withstand positive or negative wind pressure from the outside, maintaining the relative tightness of the window sash 048 relative to the window frame 047.

[0081] like Figure 3-5As shown, in a preferred embodiment, the first through hole 010 and the fourth through hole 013 are hinged by the second hinge shaft 040 to form a second hinge position 025; further, the second hinge shaft 040 includes a first shaft body 041 and a second shaft body 042, the first shaft body 041 and the second shaft body 042 are integrally formed, and the axis line of the first shaft body 041 deviates from the axis line of the second shaft body 042, and the second hinge shaft 040 can rotate relative to the first connecting rod 005 and the second connecting rod 006. Since the center line of the first shaft 041 deviates from the center line of the second shaft 042, that is, by rotating and adjusting the hinge shaft 040, the position of the first shaft 041 relative to the second shaft 042 can be changed, thereby causing one end of the first connecting rod 005 to change relative to the second connecting rod 006, thereby achieving fine-tuning of the tightness of the window sash 048 and the window frame 047 after closing (or the clamping force acting on the sealing strip between the window frame 047 and the window sash 048).

[0082] like Figure 4 As shown, in a preferred embodiment, the second connecting base 002 includes a first base plate 043 and a second base plate 044. With respect to the thickness direction of the first base plate 043 or the second base plate 044, the first base plate 043 and the second base plate 044 are superimposed and fixed, and / or the first base plate 043 and the second base plate 044 are integrally formed. The twelfth through hole 021 and the thirteenth through hole 022 both penetrate the first base plate 043 or the second base plate 044, and the width of the first base plate 043 is smaller than the width of the second base plate 044. Specifically, when the upper hinge 050 is installed on the window, if the width of the first base plate 043 is smaller than the width of the second base plate 044, the first base plate 043 can be sunken into the C-shaped groove opening of the window sash 048 profile. This ensures the structural strength of the second connecting base 002 while also reducing the installation space occupied by the upper hinge 050 between the window sash 048 and the window frame 047.

[0083] like Figure 4As shown, in a preferred embodiment, second connecting base 002 further includes a first reinforcing plate 045. First reinforcing plate 045 is superimposed on first base plate 043 and fixed to first base plate 043 and / or second base plate 044 by riveting, or first reinforcing plate 045 is integrally formed with first base plate 043. Furthermore, first reinforcing plate 045 is located on one side of thirteenth through hole 022 relative to the width of first base plate 043, and one side of first reinforcing plate 045 protrudes beyond first base plate 043. Specifically, when window sash 048 is in the suspended state, thirteenth through hole 022 on second connecting base 002 is subjected to tension from window sash 048 (e.g., wind pressure, with the tension primarily located on the side of the second connecting base facing window sash 048). The provision of first reinforcing plate 045 enhances the structural strength of second connecting base 002, that is, strengthens the load-bearing capacity of second connecting base 002, thereby improving the stability of upper hinge 050 during use. At the same time, when the window is in a suspended state, that is, the window sash 048 is in a tilted state relative to the window frame 047, the tension exerted on the second connecting seat 002 at this time is not horizontally applied to the window frame 047, that is, this tension is a downward-inclined biased tension or a downward-pulling biased force relative to the top of the window frame 047. Therefore, after one side of the first reinforcing plate 045 protrudes from the first base plate 043, the part of the first reinforcing plate 045 that protrudes from the first base plate 043 can be clamped in the C-shaped groove of the window frame 047 profile, thereby effectively enhancing the load-bearing capacity of the second connecting seat 002, that is, improving the stability of the upper hinge 050 during use.

[0084] like Figure 4As shown, in a preferred embodiment, a second reinforcing plate 046 is further included. The second reinforcing plate 046 is superimposed on the first substrate 043 and fixed to the first substrate 043 and / or the second substrate 044 by riveting, or the second reinforcing plate 046 is integrally formed with the first substrate 043. With respect to the width of the first substrate 043, the second reinforcing plate 046 is located on one side of the twelfth through hole 021, with one side of the second reinforcing plate 046 protruding from the first substrate 043; and / or the twelfth through hole 021 passes through the first substrate 043, the second substrate 044, and the second reinforcing plate 046. The provision of the second reinforcing plate 046 can enhance the structural strength of the second connecting base 002, thereby improving the connection reliability between the second connecting base 002 and the connecting rod assembly 003. Furthermore, one side of the second reinforcing plate 046 protrudes from the first substrate 043. When the window is in a suspended state, that is, the window sash 048 is in a tilted state relative to the window frame 047, the tension applied to the second connecting seat 002 at this time is not horizontally applied to the window frame 047, that is, this tension is a downward-inclined biased tension or a downward-pulling biased force relative to the top of the window frame 047. Therefore, after one side of the second reinforcing plate 046 protrudes from the first substrate 043, the part of the second reinforcing plate 046 that protrudes from the first substrate 043 can be clamped in the C-shaped groove of the window frame 047 profile, thereby effectively enhancing the load-bearing capacity of the second connecting seat 002, that is, improving the stability of the upper hinge 050 during use.

[0085] like Figure 10-11 As shown, this embodiment further provides a window, which includes a window frame 047, a window sash 048, a lower hinge 049, and the upper hinge 050 as described above. The upper hinge 050 and the lower hinge 049 are respectively installed at the two ends of the window sash 048 in the height direction, and the upper hinge 050 and the lower hinge 049 are both fixed to the window frame 047 by bolts. Of course, the upper hinge 050 and the lower hinge 049 are also fixed to the window sash 048 by bolts. Furthermore, when the locking mechanism of the upper hinge 050 is in a locked state, the outer hinge and the lower hinge 049 together form a longitudinal rotation axis between the window sash 048 and the window frame 047, so that the window sash 048 can rotate relative to the window frame 047 to open or close the window frame 047. Alternatively, the locking mechanism of the upper hinge 050 is in the unlocked state, and the lower hinge 049 forms a horizontal rotation axis between the window sash 048 and the window frame 047 in the height direction relative to the window frame 047, and the first connecting seat 001 of the upper hinge 050 is away from the second connecting seat 002, and the axes of the first connecting seat 001 and the second connecting seat 002 are relatively parallel, so that the window sash 048 uses the lower hinge 049 as a rotation fulcrum and tilts relative to the window frame 047 to open or close the window frame 047.

[0086] like Figure 6-9As shown, in a preferred embodiment, lower hinge 049 includes a first mounting seat 1, a second mounting seat 2, and an arm assembly, with the arm assembly being movably connected to first mounting seat 1 and second mounting seat 2, respectively. Specifically, first mounting seat 1 is used to mount window sash 048, while second mounting seat 2 is used to mount window frame 047. That is, window sash 048 and window frame 047 are movably connected via lower hinge 049, thereby enabling window sash 048 to open or close window frame 047. Furthermore, first mounting seat 1 is rotatable relative to second mounting seat 2 in a horizontal direction relative to second mounting seat 2, and the arm assembly is used to constrain and enable first mounting seat 1 to move along a predetermined trajectory relative to second mounting seat 2. When lower hinge 049 is in use, window sash 048 moves in a casement-opening manner relative to window frame 047. Alternatively, when the first and second mounting bases 1 and 2 are in a folded state, and in the longitudinal direction relative to the second mounting base 2, the first mounting base 1 and / or the arm assembly can be tilted relative to the second mounting base 2, such that the longitudinal axis of the first mounting base 1 and / or the arm assembly forms an angle with the longitudinal axis of the second mounting base 2. In this case, when the lower hinge 049 is in use, the movement of the window sash 048 relative to the window frame 047 is cantilevered. That is, by allowing the first mounting base 1 (for connecting to the window sash 048) in the lower hinge 049 to rotate horizontally relative to the second mounting base 2 (for connecting to the window frame 047), the first mounting base 1 can also be tilted longitudinally relative to the second mounting base 2, thereby allowing the window sash 048 to be used relative to the window frame 047 in either a horizontal or cantilevered manner, thereby allowing the window to meet different usage requirements. For example, when better ventilation and light transmission are required, the window can be opened horizontally; when greater security is required, the window can be opened cantilevered.

[0087] like Figure 6-9 As shown, in a preferred embodiment, the support arm assembly includes a first support arm 3, a second support arm 4, and a connecting rod 5. One end of the first support arm 3 is rotatably connected to the second mounting base 2 via a hinge bolt 18, the other end of the first support arm 3 is rotatably connected to the first end of the connecting rod 5 via a pin, and the second end of the connecting rod 5 is rotatably connected to the first mounting base 1 via a pin. One end of the second support arm 4 is rotatably connected to the second mounting base 2 via a hinge bolt 18, and the hinge bolt 18 can slide relative to the second mounting base 2. The other end of the second support arm 4 is rotatably connected to the first mounting base 1, and the first support arm 3 and the second support arm 4 are rotatably connected via a pin.

[0088] like Figure 8As shown, in a preferred embodiment, when the projections of the first mounting seat 1 and the second mounting seat 2 coincide with each other in the longitudinal direction, that is, when the lower hinge 049 is in the folded state, the arm assembly can tilt relative to the second mounting seat 2, such that the longitudinal axis of the first mounting seat 1 forms an angle with the longitudinal axis of the second mounting seat 2. That is, both the arm assembly and the first mounting seat 1 can tilt relative to the second mounting seat 2. Specifically, the lower hinge 049 in this embodiment is a lower-lower hinge 049, which means that when the window is suspended, the cooperation of the upper and lower hinges 049 is also required; further, in the suspended state, the axis of the width direction of the window sash 048 serves as the rotation fulcrum for the deflection of the window sash 048 relative to the window frame 047.

[0089] like Figure 9 As shown, in a preferred embodiment, the first support arm 3 is provided with a first hinge hole 6, a second hinge hole 7 and a third hinge hole 8 along its length direction, the second support arm 4 is provided with a fourth hinge hole 9, a fifth hinge hole 10 and a sixth hinge hole 11 along its length direction, the first mounting base 1 is provided with a seventh hinge hole 12 and an eighth hinge hole 13 along its length direction, and the second mounting base 2 is provided with a ninth hinge hole 14 and a tenth hinge hole 15 along its length direction.

[0090] Furthermore, the first hinge hole 6 and the ninth hinge hole 14 are hinged through the hinge bolt 18, the second hinge hole 7 and the fifth hinge hole 10 are hinged, the third hinge hole 8 and one end of the connecting rod 5 are hinged to form an eleventh hinge point, the fourth hinge hole 9 and the seventh hinge hole 12 are hinged, and the sixth hinge hole 11 and the tenth hinge hole 15 are hinged through the hinge bolt 18, wherein the sixth hinge hole 11 can be translated along the length direction of the tenth hinge hole 15, that is, the tenth hinge hole 15 is strip-shaped and the tenth hinge hole 15 extends along the length direction of the second mounting seat 2, that is, the hinge bolt 18 can slide along the tenth hinge hole 15 or can slide along the length direction of the second mounting seat 2, and the eighth hinge hole 13 is hinged to the other end of the connecting rod 5 to form a twelfth hinge point.

[0091] Furthermore, a first recessed portion 16 is provided on one side in the width direction of the second support arm 4. When the first mounting base 1 and the second mounting base 2 are in a folded state, or relative to the window, when the window sash 048 is closed in the window frame 047, the connecting rod 5 is placed in the first recessed portion 16. Furthermore, the third hinge hole 8, the eighth hinge hole 13, and the seventh hinge hole 12 form a triangle. In other words, the two hinge holes on the connecting rod 5 and the seventh hinge hole 12 on the first mounting base 1 together form a triangle. Alternatively, the eleventh hinge point, the twelfth hinge point, and the thirteenth hinge point together form a triangle. In other words, at this time, because one end of the connecting rod 5 is rotationally connected to the first mounting base 1 and the other end of the connecting rod 5 is rotationally connected to the first support arm 3, an obtuse triangle is formed. The two corner points of this triangle are both located on the first mounting seat 1. At this time (when the window is closed, that is, when the window sash 048 and the window frame 047 are closed), when it is necessary to change this triangle, only the third corner point located on the connecting rod 5 can be changed (when the first support arm 3 is rotated). In other words, this third corner point moves relative to the width direction of the window frame 047 (left and right), or relative to the thickness direction of the window frame 047 (front and back or indoor and outdoor). Among them, the eleventh hinge point is limited by the first recessed portion 16 when moving toward the outside. Furthermore, for the inward-opening window, the negative wind pressure in the room is applied to the window sash 048. At this time, the window hardware bearing The eleventh rivet point carries part of the force (wind pressure), while the other part is transferred to the window frame 047 and then to the wall through the overlapping edge of the window sash 048 and the window frame 047. Furthermore, the premise for the sixth hinge hole 11 to move toward the end of the second mounting seat in the tenth hinge hole 15 is that the sixth hinge hole 11 on the second support arm can move toward the end of the second mounting seat in the tenth hinge hole 15 only when the window sash 048 is opened to 10 degrees. At this time, because the connecting rod 5 is placed in the first recessed portion 16, this third corner point cannot move in the width direction (left and right) relative to the window frame 047. Furthermore, the sixth hinge hole 11 on the second support arm 4 is constrained by the tenth hinge hole 15 on the second mounting seat 2, and the first recessed portion 16 on the second support arm 4 (located on or facing the indoor side) now accommodates the connecting rod 5, thereby limiting the hinge point formed by the connecting rod 5 and the third hinge hole 8 from moving toward the outdoors. Furthermore, the third hinge hole 8, the fifth hinge hole 10 and the first hinge hole 6 form a triangle; when it is necessary to change this triangle, the first hinge hole 6 is relatively fixed as a corner point, and thus the obtuse triangle can only be changed to an acute triangle by rotating the second corner point, that is, the hinge point of the second hinge hole 7 and the fifth hinge hole 10 (which can be regarded as the fourteenth hinge point), and sliding the third corner point, that is, the hinge point of the sixth hinge hole 11 and the tenth hinge hole 15 (which can be regarded as the fifteenth hinge point).However, the sixth hinge hole 6 on the second support arm 4 can only move within the tenth hinge hole 15 toward one end of the second mounting base when the window sash 048 is opened to 10 degrees. This prevents the hinge point formed by the connecting rod 5 and the third hinge hole 8 from moving toward the interior of the room. In other words, when the lower hinge 049 is folded, the first support arm 3, the second support arm 4, and the connecting rod 5 cooperate and form a self-locking mechanism, allowing the closed window sash 048 to withstand positive or negative wind pressure from the outside, thereby maintaining the relative airtightness of the window sash 048 relative to the window frame 047.

[0092] like Figure 7-9 As shown, in a preferred embodiment, a second recessed portion 17 is further provided on the second support arm 4 on the other side of the first recessed portion 16. When the window sash 048 is opened to 180 degrees relative to the window frame 047 in the casement opening mode, the corners of the window sash 048 will squeeze the second support arm 4. The second recessed portion 17 can form a way to avoid the corners of the window sash 048, that is, the window sash can be opened to 180 degrees, thereby providing a wider opening to meet people's higher usage needs. Furthermore, when the lower hinge 049 is in the storage state, the second support arm 4 forms a complete strip. That is, the notch provided on the second support arm 4 (such as the second recessed portion 17, used to avoid the corners of the window sash 048; the first recessed portion 16, used to accommodate the connecting rod 5) makes the structure of the lower hinge 049 relatively more compact. In other words, the second support arm 4 is clamped between the first mounting base 1 and the first support arm 3, and the second support arm 4 and the connecting rod 5 are on the same plane, thereby making the structure after the lower hinge 049 is stored relatively more compact.

[0093] like Figure 9As shown, in a preferred embodiment, a hinge bolt 18 is provided in each of the ninth hinge hole 14 and the tenth hinge hole 15. The hinge bolt 18 is used to articulate the second mounting seat 2 with the first support arm 3 and the second support arm 4, respectively. Furthermore, a chamfered surface 19 is provided at the first end of the hinge bolt 18. The chamfered surface 19 allows the axis of the hinge bolt 18 to tilt relative to the axis of the ninth hinge hole 14 or the tenth hinge hole 15. When the first mounting seat 1 and the second mounting seat 2 are in the folded state, the chamfered surface 19 is located on one side of the width of the second mounting seat 2, thereby enabling the first mounting seat 1 or the window sash 048 to tilt (cantilever) relative to the window frame 047. In this embodiment, the hinge bolt 18 is cylindrical, and the curvature of the first end of the hinge bolt 18 is a major arc. This allows the hinge bolt 18 to tilt relative to the hinge hole while preventing it from falling out of the hinge hole. Specifically, in the thickness direction of the lower hinge 049, one hinge pin 18 is loosely engaged with the second mounting seat 2 and the first support arm 3, while the other hinge pin 18 is loosely engaged with the second mounting seat 2 and the second support arm 4. Specifically, one hinge pin 18 can slide relative to the second mounting seat 2, or both hinge pins 18 can tilt at a certain angle relative to one side of the second mounting seat. Furthermore, when the first mounting seat 1 is unfolded relative to the second mounting seat 2, the support arm assembly also unfolds accordingly, that is, the first mounting seat 1 is flatly opened (rotated) inwardly relative to the second mounting seat 2. Furthermore, when the first mounting seat 1 and the second mounting seat 2 are folded, the first support arm 3 and the second support arm 4 can drive the corresponding hinge pin 18 to move in the thickness direction of the lower hinge 049 (that is, the hinge pin 18 can tilt relative to the axis of the hinge in the thickness direction), thereby causing the first support arm 3 and the second support arm 4 to tilt inwardly or outwardly relative to the second mounting seat 2, thereby allowing the window sash 048 to open in an inwardly or outwardly cantilevered manner relative to the window frame 047.

[0094] Furthermore, taking the center line of the ninth hinge hole 14 and the tenth hinge hole 15 as the reference line, when the first mounting seat 1 and the second mounting seat 2 are in a folded state, the centers of the third hinge hole 8 and the eleventh hinge point are located on the first side of the reference line, and the centers of the second hinge hole 7 and the fifth hinge hole 10 are located on the second side of the reference line opposite to the first side; further, when the first mounting seat 1 is unfolded to 3-10 degrees toward the first side relative to the second mounting seat 2, the centers of the second hinge hole 7 and the fifth hinge hole 10 cross the reference line toward the first side.

[0095] like Figure 9As shown, in a preferred embodiment, the first mounting seat 1 is further provided with a first adjustment mechanism for adjusting the position of the first mounting seat 1 relative to the second mounting seat 2; that is, the first adjustment mechanism is used to fine-tune the front-to-back position of the window sash 048 relative to the window frame 047 to ensure the safety and precision of the window. Specifically, the first adjustment mechanism includes a sleeve 20, a jackscrew 21, a first rotating shaft 22, and a second rotating shaft 23. The sleeve 20 is integrally formed with the first mounting seat 1 and is perpendicular to the first mounting seat 1. The first rotating shaft 22 and the second rotating shaft 23 are integrally formed, and the axis of the second rotating shaft 23 is offset from the axis of the first rotating shaft 22. The first rotating shaft 22 is rotatably connected to the sleeve 20 and can move along the axial direction of the sleeve 20. The second rotating shaft 23 is hingedly connected to the second support arm 4. The jackscrew 21 is movably connected to the sleeve 20 and is used to lock the first rotating shaft 22 in the sleeve 20 in the longitudinal direction. For example, when the window is closed, the frame surface of the window sash 048 cannot be flush with the frame surface of the window frame 047. At this time, the first rotating shaft 22 can be rotated to drive the second rotating shaft 23 to rotate. Since the first rotating shaft 22 and the second rotating shaft are eccentrically arranged, the position of the window sash 048 relative to the window frame 047 can be fine-tuned, thereby achieving the safety quality of the window.

[0096] like Figure 9As shown, in a preferred embodiment, a reinforcing back plate 24 is further provided on the second mounting seat 2, and the reinforcing back plate 24 is arranged along the axial direction of the second mounting seat 2. The reinforcing back plate 24 is fixed to the second mounting seat 2 by bolts or rivets. A first snap-fit ​​portion 25 is further provided on one side in the width direction of the reinforcing back plate 24. The first snap-fit ​​portion 25 is used to form a clamping with the C-shaped groove of the window frame 047. A locking member 26 is also provided on the reinforcing back plate 24. The locking member 26 can be rotated relative to the reinforcing back plate 24, so that the locking member 26 and the first snap-fit ​​portion 25 cooperate with each other to fix the reinforcing back plate 24 to the window frame 047. Specifically, when the second mounting seat 2 needs to be clamped with the C-shaped groove of the window frame 047, or in other words, the first clamping portion 25 on the second mounting seat 2 needs to be clamped with the C-shaped groove of the window frame 047 to increase the connection strength between the second mounting seat 2 and the window frame 047 or the C-shaped groove; at this time, since the window frame 047 is a closed ring (quadrilateral) at this time, that is, the second mounting seat 2 at this time cannot be inserted into the groove along the axial direction of the C-shaped groove of the window frame 047, so the first clamping portion 25 can only be clamped into one side of the groove at a certain inclination angle relative to the radial direction of the C-shaped groove, that is, relative to the width direction of the C-shaped groove, the first clamping portion 25 can only be clamped with one side of the C-shaped groove, and the other side is in an empty state. At this time, the locking piece 26 set on the reinforcing back plate 24 is rotated and the free end of the locking piece 26 is clamped on the other side of the C-shaped groove, thereby fixing the reinforcing back plate 24 or the second mounting seat 2 to the window frame 047. Furthermore, the first snap-fit ​​portion 25 is integrally formed with the reinforcing back plate 24, so that the reinforcing back plate 24 can bear a larger load. When the lower casement hinge 049 is used in the window and the window sash 048 is opened, the first snap-fit ​​portion 25 on the reinforcing back plate 24 on the lower casement hinge 049 at the bottom of the window sash 048 can be correspondingly clamped on the innermost side of the C-shaped groove of the window frame 047, the side of the C-shaped groove farthest from the window sash 048 (relative to the inner side, the direction in which the window sash 048 opens is outward); further, the first snap-fit ​​portion 25 on the reinforcing back plate 24 on the lower casement hinge 049 at the top of the window sash 048 can be correspondingly clamped on the window The outermost side of the C-shaped groove of the frame 047, that is, the side relatively close to the window sash 048; that is, at this time, the load generated by the gravity of the window sash 048 on the reinforcing backboard 24 is mainly borne by the first clip portion 25; and the locking member 26 not only enables the reinforcing backboard 24 to be clamped with the C-shaped groove of the window frame 047, but also, relative to the width direction of the C-shaped groove, the locking member 26 can also apply a lateral thrust to the reinforcing backboard 24, that is, the reinforcing backboard 24 cannot move freely relative to the C-shaped groove, that is, the first clip portion 25 can be fully engaged with the edge of the C-shaped groove of the window frame 047 to ensure that the reinforcing backboard 24 or the second mounting seat 2 is reliably stressed.

[0097] like Figure 7 、 Figure 9As shown, in a preferred embodiment, a receiving groove 27 is formed on the reinforcing back plate 24, and a locking member 26 is positioned within the receiving groove 27. One end of the locking member 26 is rotatably connected to the reinforcing back plate 24 and / or the second mounting base 2, while the other end of the locking member 26 is free. After the locking member 26 is locked with the window frame 047, the free end of the locking member 26 protrudes from the other side of the reinforcing back plate 24 in the width direction and abuts the window frame 047. The provision of the receiving groove 27 can reduce the overall thickness of the lower hinge 049, thereby facilitating its installation and fixation in the window frame 047. Of course, the locking member 26 can be slightly higher than the reinforcing back plate 24 in the thickness direction. That is, when the second mounting base 2 is locked with the window frame 047, a certain squeezing force or pre-tightening force is applied to the locking member 26. This prevents the locking member 26 from becoming loose during the subsequent use of the window due to factors such as building vibration, wind-induced vibration, etc.

[0098] like Figure 9 As shown, in a preferred embodiment, a second adjustment mechanism is further included, which is movably connected to the second mounting base 2 and is used to adjust the movement distance of the second mounting base 2 relative to the width direction of the window frame 047. Specifically, the second adjustment mechanism includes a fixing base 28, an adjustment bolt 29, and an adjustment nut 30. The adjustment nut 30 is detachably engaged with the fixing base 28. The adjustment bolt 29 is rotatably connected to the second mounting base 2, and the adjustment bolt 29 and the adjustment nut 30 are bolted together. The fixing base 28 is used to be fixed to the window frame 047. Furthermore, second snap-fit ​​portions 31 are provided on both sides of the width direction of the fixing seat 28. The second snap-fit ​​portions 31 are used to clamp the fixing seat 28 and the window frame 047, and the length of the fixing seat 28 is smaller than its width. Further, the length of the fixing seat 28 is smaller than the width of the C-shaped groove of the window frame 047. That is, when the fixing seat 28 needs to be installed in the C-shaped groove of the window frame 047, the fixing seat 28 is first placed in the opening of the C-shaped groove, and then rotated 90 degrees so that the second snap-fit ​​31 is clamped with the edge of the C-shaped groove of the window frame 047. Furthermore, a fixing through hole 32 is provided on the fixing seat 28, and a locking piece 33 is provided in the fixing through hole 32. The locking piece 33 is screwed into the fixing through hole 32, and a receiving groove 34 is provided on the second buckle portion 31. The receiving groove 34 corresponds to the fixing hole, and the locking piece 33 is used to fix the fixing seat 28 on the window frame 047; when the locking piece 33 is rotated and the fixing seat 28 is fixed to the window frame 047 profile, the end of the locking piece 33 will squeeze and destroy the profile (equivalent to drilling the profile) to produce debris; and after the receiving groove 34 is provided, the generated debris can fall directly into the receiving groove 34, thereby preventing these debris from affecting the adjustment of the lower hinge 049, or affecting the smooth movement of the second mounting seat 2 along the C-shaped groove of the window frame 047.

[0099] Compared with the prior art, the beneficial effects of the present invention are mainly reflected in the following aspects: by providing a locking mechanism that cooperates with the connecting rod assembly on the first connecting seat (for connecting the window sash), further, when the locking mechanism is in a locked state, the first connecting seat is in a non-rotatable state relative to the connecting rod assembly, that is, the other end of the connecting rod assembly can only rotate relative to the second connecting seat (for connecting the window frame), that is, there is only one rotation point on the upper hinge, so that the window sash can only rotate relative to the horizontal, that is, open horizontally. When the locking mechanism is in an unlocked closed state, the first connecting seat can rotate relative to the connecting rod assembly, that is, two rotation points are formed on the upper hinge, so that the longitudinal axis of the window sash can be linearly tilted relative to the longitudinal axis of the window frame, or one end of the window sash in the height direction can be tilted relative to the window sash, that is, the window sash can be suspended and opened; so that the window can meet different usage requirements, thereby improving the convenience or applicability of the upper hinge and the window.

[0100] In this specification, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0101] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0102] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An upper hinge, characterized in that: It includes a first connecting seat, a second connecting seat, a connecting rod assembly and a locking mechanism, wherein the connecting rod assembly is movably connected to the first connecting seat and the second connecting seat respectively, and the locking mechanism is installed on the first connecting seat or the connecting rod assembly; The locking mechanism is used to lock or unlock the first connecting seat and the connecting rod assembly, and when the locking mechanism is in a locked state, the first connecting seat is fixed to the connecting rod assembly, and when the locking mechanism is in an unlocked state, the first connecting seat can move relative to the connecting rod assembly, so that the first connecting seat is away from the second connecting seat, and the axes of the first connecting seat and the second connecting seat are relatively parallel; The connecting rod assembly includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, wherein the first end of the first connecting rod is slidably connected to the first connecting seat and can rotate relative to the first connecting seat, the second end of the first connecting rod is rotatably connected to the first end of the second connecting rod, the second end of the second connecting rod is slidably connected to the second connecting seat and can rotate relative to the second connecting seat, the first end of the third connecting rod is rotatably connected to the second connecting seat, the second end of the third connecting rod is rotatably connected to the first end of the fourth connecting rod, and the second end of the fourth connecting rod is rotatably connected to the first connecting rod; The locking mechanism includes a sliding member, a limiting member and a limiting column. The sliding member is slidably connected to the first connecting seat, and the sliding member can reciprocate in the axial direction relative to the first connecting seat. The limiting member is fixedly connected to the sliding member, and the limiting column is fixedly connected to the first connecting rod. When the locking mechanism is in a locked state, the limiting member and the limiting column form a clamping position.

2. The upper hinge according to claim 1, characterized in that: The connecting rod assembly further includes a fifth connecting rod, one end of which is rotatably connected to the first connecting rod, and the other end of which is rotatably connected to the first connecting seat.

3. The upper hinge according to claim 1 or 2, characterized in that: The first connecting rod is respectively provided with a first through hole, a second through hole, and a third through hole along its length direction, the second connecting rod is respectively provided with a fourth through hole, a fifth through hole, and a sixth through hole along its length direction, the third connecting rod is respectively provided with a seventh through hole, an eighth through hole, and a ninth through hole along its length direction, the fourth connecting rod is respectively provided with a tenth through hole and an eleventh through hole along its length direction, the second connecting seat is respectively provided with a twelfth through hole and a thirteenth through hole along its length direction, the thirteenth through hole is in a strip shape and extends along the length direction of the second connecting seat, and a fourteenth through hole is provided at one end of the first connecting seat, the fourteenth through hole is in a strip shape and extends along the length direction of the first connecting seat; The fourteenth through hole is hinged to the third through hole, the second through hole is hinged to the tenth through hole and forms a first hinge position, the first through hole is hinged to the fourth through hole and forms a second hinge position, the fifth through hole is hinged to the eighth through hole and forms a third hinge position, the sixth through hole is hinged to the thirteenth through hole and forms a fourth hinge position, the twelfth through hole is hinged to the seventh through hole and forms a fifth hinge position, and the ninth through hole is hinged to the eleventh through hole and forms a sixth hinge position.

4. The upper hinge according to claim 3, characterized in that: The connecting rod assembly also includes a fifth connecting rod, one end of the fifth connecting rod is rotatably connected to the first connecting rod, and the other end is rotatably connected to the first connecting seat. The first connecting rod is also provided with a fifteenth through hole, and the fifteenth through hole is located between the second through hole and the third through hole. The other end of the first connecting seat is also provided with a sixteenth through hole, one end of the fifth connecting rod is provided with a seventeenth through hole, and the other end is provided with an eighteenth through hole. The seventeenth through hole is hinged to the fifteenth through hole, and the eighteenth through hole is hinged to the sixteenth through hole.

5. The upper hinge according to any one of claims 1, 2 and 4, characterized in that: A groove is provided on the limiting member along its length direction, and an opening is provided at one end or both ends of the groove. The opening is connected to the groove, and the width of the opening gradually increases away from the groove. When the locking mechanism performs a locking action, the limiting column enters the groove through the opening.

6. The upper hinge according to claim 3, characterized in that: When the first connecting seat and the second connecting seat are in a folded state, the third hinge position, the fourth hinge position and the fifth hinge position form a triangle; The second hinge position, the first hinge position and the sixth hinge position form a triangle.

7. The upper hinge according to claim 3, characterized in that: Taking the center line of the twelfth through hole and the thirteenth through hole as the reference line, when the first connecting seat and the second connecting seat are in a folded state, the third hinge position is located on the first side of the reference line, and when the first connecting seat is unfolded to the first side relative to the second connecting seat by more than 10 degrees, the third hinge position moves to the second side of the reference line.

8. The upper hinge according to any one of claims 1-2, 6-7, characterized in that: The second link and the fourth link are both clamped between the first link and the third link, and the second link and the fourth link are on the same plane. A recessed portion is also provided on one side in the width direction of the second link. When the first connecting seat and the second connecting seat are in a folded state, the fourth link is placed in the recessed portion.

9. The upper hinge according to claim 3, characterized in that: The first through hole and the fourth through hole are hingedly connected by a second hinge shaft to form a second hinge position. The second hinge shaft includes a first shaft body and a second shaft body. The first shaft body is fixedly connected to the second shaft body, and the axis center line of the first shaft body deviates from the axis center line of the second shaft body, and the second hinge shaft rotates relative to the first connecting rod and the second connecting rod.

10. The upper hinge according to claim 3, characterized in that: The second connecting seat includes a first substrate and a second substrate. Relative to the thickness direction of the first substrate or the second substrate, the first substrate and the second substrate are overlapped and fixed, and / or the first substrate and the second substrate are integrally formed, the twelfth through hole and the thirteenth through hole both penetrate the first substrate or the second substrate, and the width of the first substrate is smaller than the width of the second substrate.

11. The upper hinge according to claim 10, characterized in that: The second connecting base further includes a first reinforcing plate, which is superimposed on the first substrate and fixedly connected to the first substrate and / or the second substrate; With respect to the width direction of the first substrate, the first reinforcing plate is located on one side of the thirteenth through hole, and one side of the first reinforcing plate protrudes out of the first substrate.

12. The upper hinge according to claim 10 or 11, characterized in that: Also included is a second reinforcing plate, which is superimposed on the first substrate and fixedly connected to the first substrate and / or the second substrate; The second reinforcing plate is located on one side of the twelfth through hole relative to the width direction of the first substrate, and one side of the second reinforcing plate protrudes outside the first substrate; And / or, the twelfth through hole passes through the first substrate, the second substrate and the second reinforcing plate.

13. A window, characterized in that: The window frame comprises a window sash, a lower hinge, and an upper hinge according to any one of claims 1 to 12, wherein the upper hinge and the lower hinge are respectively installed at two ends of the window sash, and the upper hinge and the lower hinge are both fixedly connected to the window frame; When the locking mechanism of the upper hinge is in a locked state, the upper hinge and the lower hinge together form a longitudinal rotation axis between the window sash and the window frame, so that the window sash can rotate relative to the window frame to open or close the window frame; Alternatively, when the locking mechanism of the upper hinge is in an unlocked state, the lower hinge forms a transverse rotation axis between the window sash and the window frame in the height direction relative to the window frame, and the first connecting seat of the upper hinge is away from the second connecting seat, so that the window sash uses the lower hinge as a rotation fulcrum and tilts relative to the window frame to open or close the window frame.

14. The window according to claim 13, characterized in that: The lower hinge includes a first mounting seat, a second mounting seat and an arm assembly, and the arm assembly is movably connected to the first mounting seat and the second mounting seat respectively; The support arm assembly includes a first support arm, a second support arm and a connecting rod, one end of the first support arm is rotatably connected to the second mounting base, the other end of the first support arm is rotatably connected to the first end of the connecting rod, and the second end of the connecting rod is rotatably connected to the first mounting base; One end of the second support arm is slidably connected to the second mounting seat and can rotate relative to the second mounting seat, and the other end is rotatably connected to the first mounting seat, and the first support arm is rotatably connected to the second support arm.

15. The window according to claim 14, characterized in that: The first support arm is provided with a first hinge hole, a second hinge hole and a third hinge hole along its length direction, the second support arm is provided with a fourth hinge hole, a fifth hinge hole and a sixth hinge hole along its length direction, the first mounting base is provided with a seventh hinge hole and an eighth hinge hole along its length direction, the second mounting base is provided with a ninth hinge hole and a tenth hinge hole along its length direction, the tenth hinge hole is strip-shaped and extends along the length direction of the second mounting base; The first hinge hole is hinged to the ninth hinge hole, the second hinge hole is hinged to the fifth hinge hole, the third hinge hole is hinged to one end of the connecting rod to form an eleventh hinge point, the fourth hinge hole is hinged to the seventh hinge hole, the sixth hinge hole is hinged to the tenth hinge hole, and the sixth hinge hole can be translated along the length direction of the tenth hinge hole, and the eighth hinge hole is hinged to the other end of the connecting rod to form a twelfth hinge point.

16. The window according to claim 15, characterized in that: When the first mounting base and the second mounting base are in a folded state, the third hinge hole, the eighth hinge hole and the seventh hinge hole form a triangle; The third hinge hole, the fifth hinge hole and the first hinge hole form a triangle.

17. The window according to claim 14, wherein: The second support arm is clamped between the first mounting seat and the first support arm, and the second support arm and the connecting rod are on the same plane. A first recessed portion is also provided on one side in the width direction of the second support arm. When the first mounting seat and the second mounting seat are in a folded state, the connecting rod is placed in the first recessed portion. A second recessed portion is also provided on the other side of the second support arm relative to the first recessed portion.

18. The window according to claim 15, wherein: The ninth hinge hole and the tenth hinge hole are both provided with hinge bolts, and the second mounting seat is hinged to the first support arm and the second support arm respectively through the hinge bolts; In the thickness direction of the lower hinge, one of the hinge pins is loosely fitted with the second mounting seat and the first support arm, and the other hinge pin is loosely fitted with the second mounting seat and the second support arm; When the first mounting seat is unfolded relative to the second mounting seat, the arm assembly is unfolded, and the first mounting seat is flatly opened inward relative to the second mounting seat; When the first mounting seat and the second mounting seat are in a folded state, the first support arm and the second support arm can drive the hinge bolt to move along the thickness direction of the lower hinge, thereby causing the first support arm and the second support arm to tilt inward relative to the second mounting seat.

19. The window according to claim 18, characterized in that: The end portion of the first end of the hinge bolt is provided with a chamfered surface, and the chamfered surface enables the axis of the hinge bolt to be inclined relative to the axis of the ninth hinge hole or the tenth hinge hole.

20. The window according to claim 15, wherein: Taking the line connecting the centers of the ninth hinge hole and the tenth hinge hole as a reference line, when the first mounting seat and the second mounting seat are in a folded state, the centers of the third hinge hole and the eleventh hinge point are located on a first side of the reference line, and the centers of the second hinge hole and the fifth hinge hole are located on a second side of the reference line opposite to the first side; When the first mounting seat is expanded toward the first side relative to the second mounting seat by more than 10 degrees, the centers of the second hinge hole and the fifth hinge hole cross the reference line toward the first side.

21. The window according to claim 19, wherein: When the first mounting base and the second mounting base are in a folded state, the oblique cut surfaces are both oriented toward one side in the width direction of the second mounting base.

22. The window according to any one of claims 14 to 21, characterized in that: The first mounting seat is further provided with a first adjustment mechanism, and the first adjustment mechanism is used to adjust the position of the first mounting seat relative to the second mounting seat.

23. The window according to claim 22, characterized in that: The first adjusting mechanism includes a sleeve, a top screw, a first rotating shaft and a second rotating shaft. The sleeve is fixedly connected to the first mounting seat, the first rotating shaft is fixedly connected to the second rotating shaft, and the axis of the second rotating shaft deviates from the axis of the first rotating shaft. The first rotating shaft is rotatably connected to the sleeve, and the first rotating shaft can move along the axial direction of the sleeve. The second rotating shaft is hinged to the second support arm, and the top screw is movably connected to the sleeve. The top screw is used to lock the first rotating shaft and the sleeve.

24. The window according to any one of claims 14 to 21, characterized in that: A reinforcing back plate is also provided on the second mounting seat, and the reinforcing back plate is arranged along the axial direction of the second mounting seat. The reinforcing back plate is fixedly connected to the second mounting seat, and a first clip portion is also provided on one side of the width direction of the reinforcing back plate, and the first clip portion is used to form a clip with the window frame. A locking piece is also provided on the reinforcing back plate, and the locking piece can be rotated relative to the reinforcing back plate, so that the locking piece and the first clip portion cooperate with each other to fix the reinforcing back plate to the window frame.

25. The window according to claim 24, characterized in that: The reinforcing back plate is provided with a receiving groove, the locking member is located in the receiving groove, one end of the locking member is rotatably connected to the reinforcing back plate and / or the second mounting seat, and the other end of the locking member is a free end; After the locking member is locked with the window frame, the free end of the locking member protrudes from the other side of the reinforcing back plate in the width direction, and the free end abuts against the window frame.

26. The window according to any one of claims 14 to 21, characterized in that: It also includes a second adjustment mechanism, which is movably connected to the second mounting seat and is used to adjust the movement distance of the second mounting seat relative to the width direction of the window frame.

27. The window according to claim 26, characterized in that: The second adjustment mechanism includes a fixing seat, an adjusting bolt, and an adjusting nut. The adjusting nut is connected to the fixing seat. The adjusting bolt is rotatably connected to the second mounting seat, and the adjusting bolt is connected to the adjusting nut. The fixing seat is used to be fixed to the window frame.

28. The window according to claim 27, characterized in that: A second buckle portion is provided on both sides of the fixing seat in the width direction, the second buckle portion is used to clamp the fixing seat and the window frame, and the length of the fixing seat is smaller than its width; The fixing seat is also provided with a fixing through hole, and a locking piece is provided in the fixing through hole. The locking piece is screwed into the fixing through hole. The second buckle portion is also provided with a receiving groove, and the receiving groove corresponds to the fixing hole. The locking piece is used to fix the fixing seat on the window frame.

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