Upper hinge mechanism and door and window

Abstract

The utility model provides an upper hinge mechanism and a door and window, the upper hinge mechanism comprises an upper frame side connecting assembly, an upper rotating connecting assembly, an upper sash side connecting assembly, a fulcrum assembly and an adjusting connecting assembly, the upper sash side connecting assembly comprises an upper sash side hinge plate and an upper sash side fixing base; the upper leaf side hinge plate is installed on the upper leaf side fixing base in an up-down swinging mode through the fulcrum assembly, and the upper leaf side hinge plate is connected with the upper leaf side fixing base through the adjusting connecting assembly. When the adjusting connecting assembly is in the unlocking state, the end, connected with the adjusting connecting assembly, of the upper sash side hinge plate swings upwards, and the upper frame side connecting assembly inclines downwards. The upper hinge mechanism is of an integrated structure and has good structural strength, and when the upper hinge mechanism is installed in the fixed outer frame, the upper frame side connecting assembly can be easily inserted into the frame installation groove in the upper corner of the fixed outer frame, so that the installation of the door and window sash fixedly provided with the upper hinge mechanism of the integrated structure in the fixed outer frame is simple and easy to implement.

Description

Technical Field

[0001] The utility model relates to the technical field of doors and windows, in particular to an upper hinge mechanism for being assembled in a door and window, and a door and window equipped with the upper hinge mechanism. Background Art

[0002] Currently, if Figure 1 As shown, the openable doors and windows installed in the building mainly include a fixed outer frame 10 fixed in the building, a door and window sash 20 installed in the fixed outer frame 10 so as to be openable and closable, an upper hinge mechanism 30, and a lower hinge mechanism 40. The door and window sash 20 includes a sash frame 21 and a sash panel 22 installed in the sash frame 21. The sash panel 22 is usually glass. The upper hinge mechanism 30 is installed between the sash frame 21 and the fixed outer frame 10 at the upper corner of the door and window sash 20, and the lower hinge mechanism 40 is installed between the sash frame 21 and the fixed outer frame 10 at the lower corner of the door and window sash 20.

[0003] Existing upper hinge mechanisms and lower hinge mechanisms are of two types: split structures and integrated structures. Regardless of whether they are split structures or integrated structures, the upper hinge mechanisms and lower hinge mechanisms both include a frame-side connecting assembly fixed to the fixed outer frame, a sash-side connecting assembly fixed to the sash frame of the door and window sash, and a rotating connecting assembly. The rotating connecting assembly is connected between the frame-side connecting assembly and the sash-side connecting assembly. The sash-side connecting assembly rotates inward or outward relative to the frame-side connecting assembly through the rotating connecting assembly, thereby opening or closing the door and window sash accordingly. Typically, the sash-side connecting assembly includes a sash-side fixed base and a sash-side hinge plate fixed by fixed pins. The sash-side fixed base is used to be fixedly connected to the sash frame, and the sash-side hinge plate is used to be connected to the rotating connecting assembly. In addition, the inner peripheral side of the fixed outer frame is provided with a C-shaped groove for the frame-side connecting assembly to be installed, and the outer peripheral side of the sash frame is provided with a C-shaped groove for the sash-side connecting assembly to be installed.

[0004] For the upper hinge mechanism and lower hinge mechanism of the split structure: when not assembled between the fixed outer frame and the sash frame of the door and window sash, the rotating connection assembly and the sash side hinge plate of the sash side connection assembly are integrated on the frame side connection assembly, while the sash side hinge plate and the sash side fixed base are separate and temporarily not fixed by fixing pins, which means that the upper hinge mechanism and the lower hinge mechanism are split structures before installation, and the frame side connection assembly and the components integrated thereon are separated from the sash side fixed base of the sash side connection assembly. In this way, the installation process of doors and windows equipped with split upper and lower hinge mechanisms is as follows: 1. Fix the frame-side connecting assembly and the sash-side fixing base of the upper hinge mechanism to the C-shaped groove of the fixed outer frame and the C-shaped groove of the sash frame respectively, and fix the frame-side connecting assembly and the sash-side fixing base of the lower hinge mechanism to the C-shaped groove of the fixed outer frame and the C-shaped groove of the sash frame respectively; 2. Make the rotating connecting assembly of the upper hinge mechanism and the rotating connecting assembly of the lower hinge mechanism both in the open state; 3. At least two workers are required to lift the door and window sashes and make the door The window sash is in an open state relative to the fixed outer frame. At the same time, the sash-side fixed base of the upper hinge mechanism on the outer periphery of the door and window sash must be strictly aligned with the sash-side hinge plate, and the sash-side fixed base of the lower hinge mechanism must be strictly aligned with the sash-side hinge plate; 4. Multiple workers lift the door and window sash toward the fixed outer frame and move it horizontally. After it is moved into place, an additional worker is required to install the fixing pins of the upper hinge mechanism and the lower hinge mechanism, and fix the sash-side fixed base of the upper hinge mechanism to the sash-side hinge plate, and fix the sash-side fixed base of the lower hinge mechanism to the sash-side hinge plate. At this point, the assembly of the doors and windows is completed. However, the upper hinge mechanism and the lower hinge mechanism of the split structure have low strength at the fixed connection between their respective sash-side fixed bases and the sash-side hinge plates, which can easily lead to failure of the doors and windows after a period of subsequent use.

[0005] For the upper and lower hinge mechanisms with an integrated structure: before being assembled between the fixed outer frame and the sash frame of the door or window sash, the frame-side connecting assembly, the rotating connecting assembly, and the sash-side connecting assembly are already connected, making the upper and lower hinge mechanisms a single structure before installation. The installation process for doors and windows equipped with an integrated upper and lower hinge mechanism is as follows: 1. Secure the sash-side fixing base of the lower hinge mechanism to the outer periphery of the sash frame, and secure the sash-side fixing base of the upper hinge mechanism to the outer periphery of the sash frame; 2. Open the rotating connecting assembly of the upper hinge mechanism and the rotating connecting assembly of the lower hinge mechanism; 3. The worker lifts the door or window sash and first inserts the frame-side connecting assembly of the lower hinge mechanism into the C-shaped groove of the fixed outer frame, then inserts the frame-side connecting assembly of the upper hinge mechanism into the C-shaped groove of the sash frame; 4. Secure the frame-side connecting assemblies of both the lower and upper hinge mechanisms to the fixed outer frame. At this point, the door or window assembly is complete. However, since the fixed outer frame is integrally provided with ribs on both sides of the C-shaped groove for forming the C-shaped groove, when the frame-side connecting assembly of the lower hinge mechanism is inserted into the C-shaped groove of the fixed outer frame, the door and window sash is in a slightly tilted state, specifically, the side of the door and window sash away from the fixed outer frame is slightly tilted downward, such as Figure 2 When the door or window sash is tilted, the frame-side connecting assembly of the upper hinge mechanism fixed at its upper corner is bound to tilt upward. Combined with the obstruction of the rib on the inner circumference of the upper end of the fixed outer frame, it is difficult for the frame-side connecting assembly of the upper hinge mechanism to fit into the C-shaped groove at the upper end of the fixed outer frame, making the installation of the door or window sash very difficult.

[0006] To address this issue, prior art: Chinese invention patent No. CN106715815B discloses an angled hardware fixture that secures to undercut grooves on both sides of the frame, simplifying the connection of door and window sashes to the frame. However, this angled hardware fixture is an additional component with a complex structure and high precision requirements for its contours. This results in high production costs for this angled hardware, which in turn increases the production costs of doors and windows. Utility Model Content

[0007] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an upper hinge mechanism which is an integrated structure and can make the installation of the door and window sash fixed with the upper hinge mechanism in the fixed outer frame simple and easy to implement.

[0008] To achieve the above-mentioned object, the present invention provides an upper hinge mechanism for being assembled between a fixed outer frame and a sash frame of a door or window, the upper hinge mechanism comprising an upper frame-side connecting assembly for being fixed to the fixed outer frame, an upper sash-side connecting assembly for being fixed to the sash frame, and an upper rotating connecting assembly, the upper sash-side connecting assembly comprising an upper sash-side hinge plate and an upper sash-side fixed base, the upper sash-side hinge plate being connected to the upper frame-side connecting assembly via the upper rotating connecting assembly;

[0009] The upper hinge mechanism is an integrated structure that keeps the upper frame side connection assembly, the upper rotation connection assembly and the upper sash side connection assembly connected in sequence;

[0010] The upper hinge mechanism further includes a fulcrum assembly and an adjustment connection assembly, wherein the upper sash side hinge plate is mounted on the upper sash side fixed base so as to be able to swing up and down through the fulcrum assembly, and one end of the upper sash side hinge plate away from the upper frame side connection assembly is connected to the upper sash side fixed base through the adjustment connection assembly, and the adjustment connection assembly has an unlocked state for allowing the upper sash side hinge plate to swing up and down around the fulcrum assembly, and a locked state for restricting the upper sash side hinge plate from swinging up and down around the fulcrum assembly;

[0011] When the adjustment connection assembly is in the unlocked state, the upper frame side connection assembly is tilted downward by swinging the end of the upper sash side hinge plate connected to the adjustment connection assembly upward;

[0012] When the adjustment connection assembly is in a locked state, the upper fan side hinge plate is in a horizontal state.

[0013] Based on the integrated structure of the upper hinge mechanism, the present application provides a fulcrum assembly and an adjustable connecting assembly in the upper hinge mechanism, so that when the adjustable connecting assembly is in an unlocked state, the upper sash-side hinge plate can swing up and down about the fulcrum assembly, and when the adjustable connecting assembly is in a locked state, the upper sash-side hinge plate cannot swing up and down about the fulcrum assembly. Thus, after the upper sash-side connecting assembly of the upper hinge mechanism is fixed to the sash mounting slot at the top of the sash frame, the upper hinge mechanism as a whole is also fixed to the top of the sash frame. Subsequently, when the upper frame-side connecting assembly of the upper hinge mechanism in this state is inserted into the frame mounting slot at the upper corner of the fixed outer frame, the adjustable connecting assembly of the upper hinge mechanism is in an unlocked state, so that the end of the upper sash-side hinge plate connected to the upper rotating connecting assembly swings downward, thereby causing the upper frame-side connecting assembly connected to this end to swing downward, thereby causing the upper frame-side connecting assembly as a whole to tilt downward. In this way, the upper frame-side connecting assembly can easily pass over the first mounting arm portion forming the frame mounting slot at the top of the fixed outer frame, allowing the upper frame-side connecting assembly to be easily inserted into the frame mounting slot at the upper corner of the fixed outer frame. Afterwards, the upper hinge mechanism's adjustable connecting assembly is restored to its locked state. The upper sash-side hinge plate, connected to the upper rotating connecting assembly, then swings upward until the upper sash-side hinge plate is horizontal, forcing the upper frame-side connecting assembly to be inserted into the frame mounting slot at the upper corner of the fixed outer frame. Finally, the upper frame-side connecting assembly is secured to the fixed outer frame, completing the assembly of the upper hinge mechanism in the door or window, allowing the door or window sash, with the integrated upper hinge mechanism, to be installed in the fixed outer frame.

[0014] Obviously, the upper hinge mechanism involved in the present application is an integrated structure with good structural strength. After being installed between the fixed outer frame and the sash frame of the door and window, it can also improve the stability of the overall structure of the door and window, making the door and window durable. At the same time, the present application provides a fulcrum component and an adjustable connection component in the upper hinge mechanism of the integrated structure, so that when the upper hinge mechanism is installed in the fixed outer frame, the upper frame side connection component is tilted downward as a whole, and the upper frame side connection component can be easily inserted into the frame installation groove at the upper corner of the fixed outer frame, making the installation of the door and window sash fixed with the upper hinge mechanism of the integrated structure in the fixed outer frame simple and easy to implement.

[0015] Furthermore, the structure of the fulcrum assembly is preferably as follows: the fulcrum assembly includes a vertically arranged fulcrum pin and a fulcrum through-hole defined in the upper sash-side fixed base, the upper end of the fulcrum pin being fixed to the upper sash-side hinge plate, and the fulcrum pin being inserted into the fulcrum through-hole so as to be movable up and down. Thus, when the adjustable connecting assembly is in the unlocked state, the fulcrum pin cooperates with the fulcrum through-hole to enable the upper sash-side hinge plate to swing up and down about the fulcrum pin, and during this swinging process, the fulcrum pin will sway up and down in the fulcrum through-hole.

[0016] Furthermore, the fulcrum assembly also includes a limiting groove opened in the upper fan side fixed base, the limiting groove is connected to the bottom of the fulcrum through hole, and the groove wall of the limiting groove is distributed on the periphery of the hole wall of the fulcrum through hole, so that the upper fan side fixed base forms a limiting step portion at the connection between the fulcrum through hole and the limiting groove, and the lower end of the fulcrum pin is fixed with a limiting flange, which can be movably accommodated in the limiting groove and can abut against the limiting step portion. When the adjustment connection assembly is in the unlocked state, as the upper sash-side hinge plate swings up and down with the fulcrum pin as the center, the upper sash-side hinge plate drives the fulcrum pin to swing up and down, and at the same time, the limiting flange swings up and down in the limiting groove. During this process, the limiting step abuts against the upper side of the limiting flange to limit the upward swing of the limiting flange, thereby limiting the upward swing amplitude of the upper sash-side hinge plate. The upper sash-side fixed base abuts against the lower side of the upper sash-side hinge plate to limit the downward swing of the upper sash-side hinge plate, thereby limiting the downward swing amplitude of the upper sash-side hinge plate. In this way, when the door and window sash with the upper hinge mechanism fixed thereto is installed into the fixed outer frame, the upward and downward swing amplitude of the upper sash-side hinge plate is reliably limited to a reasonable range, which not only enables the upper frame-side connection assembly to be easily inserted into the frame installation groove at the upper corner of the fixed outer frame, but also prevents the upper sash-side hinge plate from colliding with the fixed outer frame due to the large swing amplitude. In addition, the limiting step portion can also constrain the limiting flange in the limiting groove, thereby preventing the fulcrum pin from escaping upward from the fulcrum through hole.

[0017] Preferably, the fulcrum pin is a one-piece metal part that is riveted to the upper sash hinge plate. This ensures that the fulcrum pin itself has good structural strength and its fixation to the upper sash hinge plate is reliable, thereby enhancing the structural strength of the one-piece upper hinge mechanism.

[0018] Furthermore, the preferred structure of the adjusting connection assembly is as follows: the adjusting connection assembly includes a vertically arranged adjusting pin, an adjusting through hole provided in the upper fan side hinge plate, and a connecting hole provided in the upper fan side fixed base, the adjusting pin includes an upper shaft section, a lower shaft section, and at least one adjusting protrusion radially protruding from the outer circumferential surface of the upper shaft section, the lower shaft section is rotatably connected to the connecting hole, the adjusting through hole includes a hole main body part, and a hole limiting part connected to the side of the hole main body part, and the upper shaft section is passed through the hole main body part; when the adjusting pin is rotated to align the adjusting protrusion with the hole limiting part in a circumferential direction, the adjusting protrusion can be located in the hole limiting part, and the adjusting connection assembly is in an unlocked state; when the adjusting pin is rotated to stagger the adjusting protrusion with the hole limiting part in a circumferential direction, the adjusting protrusion, the upper fan side hinge plate and the upper fan side fixed base abut in sequence from top to bottom, and the adjusting connection assembly is in a locked state. In this adjustment connection assembly, the adjustment connection assembly can be switched to an unlocked state or a locked state by simply rotating the adjustment pin, which is convenient for workers to operate and more convenient for installing door and window sashes with an upper hinge mechanism with an integrated structure in a fixed outer frame.

[0019] Preferably, there is one adjusting protrusion on the adjusting pin and one hole limiting portion on the upper fan side hinge plate, which is convenient for the production of the adjusting pin and the processing of the adjusting through hole in the upper fan side hinge plate.

[0020] Furthermore, the outer circumference of the adjustment protrusion is a circular arc surface, and the outer circumference of the adjustment protrusion and the outer circumference of the upper shaft segment are both connected by a circular arc surface. The contour of the adjustment hole is adapted to the outer circumference of the adjustment pin at the adjustment protrusion, with a gap between the two. In this way, when the upper hinge mechanism is assembled, the adjustment connection assembly is always in a locked state. At this time, the portion of the adjustment pin where the adjustment protrusion is located extends upward from the adjustment hole of the upper sash hinge plate, exposed on the upper side of the upper sash hinge plate. The outer circumference of the adjustment pin at the adjustment protrusion is a circular arc surface with no sharp edges. Therefore, even if this portion of the adjustment pin is exposed on the upper side of the upper sash hinge plate, even if a worker bumps into it, it will not pose a safety hazard.

[0021] Furthermore, the outer peripheral surface of the lower shaft segment is in surface contact with the wall of the connecting hole, which increases the friction between the lower shaft segment and the fixed base on the upper fan side, so that the lower shaft segment cannot rotate freely. The lower shaft segment is only allowed to rotate in the connecting hole when external force is applied to the adjusting pin, thereby ensuring the stability of the adjusting connecting assembly in the unlocked state or the locked state.

[0022] Furthermore, the outer diameter of the upper shaft section is larger than the outer diameter of the lower shaft section, and the adjusting pin is formed with a shaft step portion at the connection between the upper shaft section and the lower shaft section. The top surface of the upper fan side fixed base is provided with a friction increasing protrusion located on the outer peripheral side of the connecting hole. The shaft step portion abuts against the friction increasing protrusion, and the two are in surface contact, further increasing the friction between the upper fan side fixed base and the adjusting pin, so that the adjusting pin is allowed to rotate only when external force is applied to the adjusting pin, and more reliably ensuring the stability of the adjusting connection assembly in the unlocked state or the locked state.

[0023] Preferably, a rotation groove is formed on the top surface of the adjusting pin. The rotation groove may be a triangular groove, a square groove, or a hexagonal groove. By inserting a rotation tool that matches the rotation groove into the rotation groove, the adjusting pin can be easily rotated to switch the state of the adjusting connection assembly to an unlocked state or a locked state, making the operation of switching the state of the adjusting connection assembly simple and easy to implement.

[0024] Preferably, the adjusting pin is a metal piece of an integrated structure. In this way, the adjusting pin itself has good structural strength, which is conducive to improving the structural strength of the upper hinge mechanism of the integrated structure.

[0025] The present application also provides a door and window, comprising a fixed outer frame, a door and window sash openably and closably mounted in the fixed outer frame, an upper hinge mechanism, and a lower hinge mechanism; the fixed outer frame is provided with a frame mounting groove on its inner circumference, and the fixed outer frame is provided with first mounting arms fixedly disposed on both sides of the frame mounting groove along its thickness direction; the door and window sash comprises a sash frame and a sash panel mounted in the sash frame, the sash frame is provided with sash mounting grooves on both the top and bottom surfaces, and the sash frame is provided with second mounting arms fixedly disposed on both sides of the sash mounting groove along its thickness direction;

[0026] The upper hinge mechanism is the upper hinge mechanism described above;

[0027] The lower hinge mechanism includes a lower frame side connection assembly, a lower sash side connection assembly, and a lower rotating connection assembly. The lower sash side connection assembly includes a lower sash side hinge plate and a lower sash side fixed base. The lower sash side hinge plate of the lower sash side connection assembly is connected to the lower frame side connection assembly through the lower rotating connection assembly. The lower hinge mechanism is an integrated structure that keeps the lower frame side connection assembly, the lower rotating connection assembly, and the lower sash side connection assembly connected in sequence.

[0028] The upper hinge mechanism is assembled between the top of the sash frame and the fixed outer frame, the upper frame side connecting assembly is accommodated in the frame mounting groove at the upper corner of the fixed outer frame and is fixed to the fixed outer frame, and the bottom of the upper sash side fixing base is accommodated in the sash mounting groove at the top of the sash frame and is fixed to the sash frame;

[0029] The lower hinge mechanism is assembled between the bottom of the sash frame and the fixed outer frame, the lower frame side connecting component is accommodated in the frame mounting groove at the lower corner of the fixed outer frame and is fixed to the fixed outer frame, and the top of the lower sash side fixing base is accommodated in the sash mounting groove at the bottom of the sash frame and is fixed to the sash frame.

[0030] In the doors and windows involved in the present application, both the upper hinge mechanism and the lower hinge mechanism are integrated structures, both have good structural strength, which is conducive to improving the stability of the overall structure of the doors and windows, making the doors and windows durable. At the same time, the present application provides a fulcrum assembly and an adjustment connection assembly in the integrated upper hinge mechanism. When the door and window sashes fixed with the integrated upper hinge mechanism and the lower hinge mechanism are installed in the fixed outer frame, the upper frame side connection assembly of the upper hinge mechanism can be tilted downward as a whole, so that the upper frame side connection assembly can be easily inserted into the frame installation groove at the upper corner of the fixed outer frame, making the installation of the door and window sashes fixed with the integrated upper hinge mechanism and the lower hinge mechanism in the fixed outer frame simple and easy to implement.

[0031] Furthermore, one end of the sash mounting groove at the top of the sash frame is an upper hinge insertion opening that allows the upper sash-side fixing base to slide in, and the upper sash-side fixing base is fixedly connected to the sash frame via a first locking member; one end of the sash mounting groove at the bottom of the sash frame is a lower hinge insertion opening that allows the lower sash-side fixing base to slide in, and the lower sash-side fixing base is fixedly connected to the sash frame via a second locking member. This facilitates the installation and fixation of the upper hinge mechanism at the top of the sash frame and the installation and fixation of the lower hinge mechanism at the bottom of the sash frame.

[0032] As described above, the upper hinge mechanism and the door and window involved in the present invention have the following beneficial effects:

[0033] 1. The upper hinge mechanism involved in this application is an integrated structure with good structural strength. After being installed between the fixed outer frame and the sash frame of the door and window, it can also improve the stability of the overall structure of the door and window, making the door and window durable.

[0034] 2. The present application sets a fulcrum assembly and an adjustment connection assembly in the upper hinge mechanism of the integrated structure, so that when the upper hinge mechanism is installed in the fixed outer frame, the upper frame side connection assembly is tilted downward as a whole, and the upper frame side connection assembly can be easily inserted into the frame mounting groove at the upper corner of the fixed outer frame, making the installation of the door and window sash fixed with the upper hinge mechanism of the integrated structure in the fixed outer frame simple and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a structural diagram of doors and windows.

[0036] Figure 2 This is a schematic diagram of a door or window equipped with an upper hinge mechanism and a lower hinge mechanism of an integrated structure during installation of the door or window sash according to the prior art.

[0037] Figure 3 and Figure 4 This is a schematic diagram of the structure of the doors and windows of this application when assembled from different perspectives.

[0038] Figure 5 for Figure 3 Enlarged view of circle A.

[0039] Figure 6 for Figure 4 Enlarged view of circle B.

[0040] Figure 7 for Figure 4 Enlarged view of circle D.

[0041] Figure 8 This is a structural diagram of the hinge mechanism of this application when its adjustment connection component is in the unlocked state.

[0042] Figure 9 for Figure 8Schematic diagram of the structure from another perspective.

[0043] Figure 10 for Figure 8 main view.

[0044] Figure 11 for Figure 8 Top view of .

[0045] Figure 12 for Figure 11 EE cross-sectional view.

[0046] Figure 13 This is a top view of the hinge mechanism of this application when its adjustment connection component is in a locked state.

[0047] Figure 14 for Figure 13 FF cross-sectional view.

[0048] Figure 15 for Figure 14 Enlarged view of the G circle.

[0049] Figure 16 for Figure 14 Enlarged view of circle H.

[0050] Figure 17 This is a structural diagram of the upper fan side hinge plate in the upper hinge mechanism of this application.

[0051] Figure 18 This is a structural diagram of the connecting seat of the upper fan side fixed base in the upper hinge mechanism of this application.

[0052] Figure 19 for Figure 18 Schematic diagram of the structure from another perspective.

[0053] Figure 20 This is a structural diagram of the adjustment pin in the hinge mechanism of this application.

[0054] Figure 21 This is a structural diagram of the hinge mechanism in this application.

[0055] Figures 22a to 22e This is a schematic diagram of the assembly process of the doors and windows of this application.

[0056] Figure 23 This is a structural diagram of the present application in which an anti-falling component is fixed on the upper profile of the fan frame.

[0057] Component number description

[0058] 10 Fixed frame

[0059] 11 frame mounting slots

[0060] 12 First mounting arm

[0061] 13. Upper profile of outer frame

[0062] 14 Lower profile of outer frame

[0063] 15 Left profile of outer frame

[0064] 16 Outer frame right profile

[0065] 20 Door and window sashes

[0066] 21 fan frame

[0067] 22 panels

[0068] 23 fan installation slots

[0069] 24 Second mounting arm

[0070] 25 Sash frame upper profile

[0071] 26 Sash frame lower profile

[0072] 27 Sash frame left profile

[0073] 28 Sash frame right profile

[0074] 30 Upper hinge mechanism

[0075] 31 Upper frame side connection assembly

[0076] 32 Upper fan side connection assembly

[0077] 33 Upper rotating connecting assembly

[0078] 34 Upper sash side hinge plate

[0079] 341 Adjustment hole

[0080] 342 hole body

[0081] 343 hole limiter

[0082] 35 Upper sash side fixing base

[0083] 351 Fulcrum through hole

[0084] 352 limit slot

[0085] 353 limit step

[0086] 354 connection hole

[0087] 355 Zengmo Tubu

[0088] 36 fulcrum assembly

[0089] 361 pivot pin

[0090] 362 limit flange

[0091] 37 Adjusting the connection components

[0092] 371 Adjustment pin

[0093] 372 upper shaft section

[0094] 373 lower shaft section

[0095] 374 Adjustment protrusion

[0096] 375 shaft step

[0097] 376 Rotating Slot

[0098] 40 Lower hinge mechanism

[0099] 41 Lower frame side connection assembly

[0100] 42 Lower fan side connection assembly

[0101] 43 Lower rotating connecting assembly

[0102] 44 Lower fan side hinge plate

[0103] 45 Lower fan side fixed base

[0104] 50 First locking piece

[0105] 60 Second locking piece

[0106] 71 Adjustment seat

[0107] 72 connector

[0108] 73 Adjusting bolt

[0109] 74 limiting ribs

[0110] 80 Anti-fall parts DETAILED DESCRIPTION

[0111] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0112] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification for the understanding and reading of those familiar with this technology, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose of the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be considered as the scope of the implementation of the present invention without substantially changing the technical content.

[0113] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0114] In addition, the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0115] The utility model relates to the technical field of doors and windows, and in particular to an upper hinge mechanism, a door and window equipped with the upper hinge mechanism, and an installation method of the door and window. The door and window can be an inward-opening window or an outward-opening window.

[0116] For ease of description, in the following embodiments, the definitions of various directions are as follows: the height direction of the doors and windows is defined as the up and down direction, the width direction of the doors and windows is defined as the left and right direction, and the thickness direction of the doors and windows is defined as the front and back direction; the thickness direction of the doors and windows is also the indoor and outdoor direction, and the outdoor side direction is the front direction.

[0117] like Figure 1 、 Figure 3 and Figure 4As shown, a door or window typically includes a fixed outer frame 10, a door or window sash 20 that is openably mounted within the fixed outer frame 10, an upper hinge mechanism 30, and a lower hinge mechanism 40. The upper hinge mechanism 30 and the lower hinge mechanism 40 are mounted at the upper left corner and lower left corner of the door or window sash 20, respectively; alternatively, the upper hinge mechanism 30 and the lower hinge mechanism 40 are mounted at the upper right corner and lower right corner of the door or window sash 20, respectively. The door or window sash 20 is rotatably mounted to the fixed outer frame 10 via the upper hinge mechanism 30 and the lower hinge mechanism 40, allowing the door or window sash 20 to open inward or outward relative to the fixed outer frame 10, achieving inward or outward opening. The following describes the preferred structures of the various components of the door or window, taking as an example an inward-opening door or window, with the upper hinge mechanism 30 mounted at the upper right corner of the door or window sash 20 and the lower hinge mechanism 40 mounted at the lower right corner of the door or window sash 20.

[0118] like Figure 3 、 Figure 4 and Figure 7 As shown, the fixed outer frame 10 is used to be fixed in a window opening of a building. The fixed outer frame 10 includes an upper outer frame profile 13, a lower outer frame profile 14, a left outer frame profile 15, and a right outer frame profile 16. The upper outer frame profile 13, the lower outer frame profile 14, the left outer frame profile 15, and the right outer frame profile 16 are all made of aluminum alloy profiles. The upper outer frame profile 13 and the lower outer frame profile 14 are vertically opposed and extend straight from side to side. The left outer frame profile 15 and the right outer frame profile 16 are horizontally opposed and extend straight from side to side. A circle of frame mounting grooves 11 are provided on the inner periphery of the fixed outer frame 10. The frame mounting grooves 11 are C-shaped grooves. The fixed outer frame 10 is fixed with first mounting arms 12 along its thickness, at the front and rear sides of the frame mounting grooves 11. The first mounting arms 12 are inverted L-shaped and extend in the same direction as the frame mounting grooves 11. Thus, the lower surface of the outer frame upper profile 13 is provided with a frame mounting groove 11 and a first mounting arm 12 extending horizontally. The upper surface of the outer frame lower profile 14 is provided with a frame mounting groove 11 and a first mounting arm 12 extending horizontally. The right surface of the outer frame left profile 15 is provided with a frame mounting groove 11 and a first mounting arm 12 extending vertically. The left surface of the outer frame right profile 16 is provided with a frame mounting groove 11 and a first mounting arm 12 extending vertically. Furthermore, the frame mounting groove 11 on the lower side of the outer frame upper profile 13, the frame mounting groove 11 on the right side of the outer frame left profile 15, the frame mounting groove 11 on the upper side of the outer frame lower profile 14, and the frame mounting groove 11 on the left side of the outer frame right profile 16 are aligned in the front-to-back direction and connected end to end. The first mounting arm 12 on the lower surface of the outer frame upper profile 13 is the first mounting arm 12 that fixes the upper side of the outer frame 10, and the first mounting arm 12 on the upper surface of the outer frame lower profile 14 is the first mounting arm 12 that fixes the lower side of the outer frame 10.

[0119] like Figure 3 and Figure 4As shown, the door and window sash 20 includes a sash frame 21 and a sash panel 22 installed in the sash frame 21. The sash panel 22 has a single-layer glass structure or a multi-layer glass structure. The sash frame 21 includes an upper sash frame profile 25, a lower sash frame profile 26, a left sash frame profile 27, and a right sash frame profile 28. The upper sash frame profile 25, the lower sash frame profile 26, the left sash frame profile 27, and the right sash frame profile 28 are all aluminum alloy profiles. The upper sash frame profile 25 and the lower sash frame profile 26 are opposite to each other in vertical direction and extend straight from left to right. The left sash frame profile 27 and the right sash frame profile 28 are opposite to each other in horizontal direction and extend straight from left to right. The outer circumference of the sash frame 21 is provided with a circle of C-shaped sash mounting grooves 23. Second mounting arms 24 are fixedly attached to the front and rear sides of the sash mounting grooves 23 along the thickness of the sash frame 21. These second mounting arms 24 are inverted L-shaped and extend in the same direction as the sash mounting grooves 23. Thus, the upper surface of the upper sash frame profile 25 is provided with left and right sash mounting grooves 23, the lower surface of the lower sash frame profile 26 is provided with left and right sash mounting grooves 23, the left surface of the left sash frame profile 27 is provided with up and down sash mounting grooves 23, and the right surface of the right sash frame profile 28 is provided with up and down sash mounting grooves 23. Furthermore, the sash mounting grooves 23 on the upper side of the upper sash frame profile 25, the left side of the left sash frame profile 27, the lower side of the lower sash frame profile 26, and the right side of the right sash frame profile 28 are aligned in the front-to-back direction and connected end to end.

[0120] like Figure 3 、 Figure 5 、 Figure 8 and Figure 9 As shown, the upper hinge mechanism 30 includes an upper frame-side connecting assembly 31 for fixing to the upper right corner of the fixed outer frame 10, an upper sash-side connecting assembly 32 for fixing to the top of the sash frame 21, and an upper rotating connecting assembly 33. The upper sash-side connecting assembly 32 includes an upper sash-side hinge plate 34 and an upper sash-side fixed base 35 connected to the lower left side of the upper sash-side hinge plate 34. The right section of the upper sash-side hinge plate 34 is connected to the upper frame-side connecting assembly 31 via the upper rotating connecting assembly 33. The integrated structure of the upper hinge mechanism 30 means that the upper frame-side connecting assembly 31, the upper rotating connecting assembly 33, and the upper sash-side connecting assembly 32 always maintain a connected state in sequence.

[0121] like Figure 4 、 Figure 6 and Figure 21As shown, the lower hinge mechanism 40 includes a lower frame-side connecting assembly 41 for fixing to the lower right corner of the fixed outer frame 10, a lower sash-side connecting assembly 42 for fixing to the bottom of the sash frame 21, and a lower rotating connecting assembly 43. The lower sash-side connecting assembly 42 includes a lower sash-side hinge plate 44 and a lower sash-side fixed base 45 fixed to the lower left side of the lower sash-side hinge plate 44. The right section of the lower sash-side hinge plate 44 is connected to the lower frame-side connecting assembly 41 via the lower rotating connecting assembly 43. The integrated structure of the lower hinge mechanism 40 means that the lower frame-side connecting assembly 41, the lower rotating connecting assembly 43, and the lower sash-side connecting assembly 42 are always connected in sequence.

[0122] When assembling doors and windows, first fix the upper hinge mechanism 30 and the lower hinge mechanism 40 to the top and bottom of the door and window sash 20 respectively; then install the upper hinge mechanism 30 and the lower hinge mechanism 40 into the fixed outer frame 10. In order to facilitate the installation of the door and window sash 20 fixed with the upper hinge mechanism 30 and the lower hinge mechanism 40 of the integrated structure in the fixed outer frame 10, the present application improves the structure of the upper hinge mechanism 30 of the integrated structure. Specifically: Figures 8 to 14 As shown, the upper hinge mechanism 30 further includes a fulcrum assembly 36 and an adjustment connection assembly 37. The upper sash-side hinge plate 34 is mounted on the upper sash-side fixed base 35 via the fulcrum assembly 36 so as to be swingable up and down. The left end of the upper sash-side hinge plate 34, which is away from the upper frame-side connection assembly 31, is connected to the upper sash-side fixed base 35 via the adjustment connection assembly 37. The upper sash-side fixed base 35 is located on the left side of the fulcrum assembly 36, and the upper rotation connection assembly 33 and the upper frame-side connection assembly 31 are both located on the right side of the fulcrum assembly 36. The adjustment connection assembly 37 has an unlocked state that allows the upper sash-side hinge plate 34 to swing up and down around the fulcrum assembly 36, and a locked state that restricts the upper sash-side hinge plate 34 from swinging up and down around the fulcrum assembly 36. When the adjustment connection assembly 37 is in the unlocked state, the upper sash-side hinge plate 34 can swing up and down around the fulcrum assembly 36, which can also cause the left end of the upper sash-side hinge plate 34 connected to the adjustment connection assembly 37 to swing up, thereby tilting the upper frame-side connection assembly 31 connected to the right end of the upper sash-side hinge plate 34 downward. When the adjustment connection assembly 37 is in the locked state, the upper sash-side hinge plate 34 cannot swing up and down, and the upper sash-side hinge plate 34 is in a horizontal state, so that the upper frame-side connection assembly 31 no longer tilts.

[0123] Furthermore, the present application also provides a method for installing a door and window, which includes a fixed outer frame 10 having the above structure, a door and window sash 20, an upper hinge mechanism 30, and a lower hinge mechanism 40. The method for installing the door and window includes the following steps.

[0124] Step S1: Figure 22a and Figure 22bAs shown, the lower fan side fixing base 45 of the lower hinge mechanism 40 is installed into the fan mounting groove 23 at the bottom of the lower profile 26 of the fan frame, and the lower fan side fixing base 45 is fixedly connected to the fan frame 21, so that the lower hinge mechanism 40 as a whole is first fixed at the right end of the bottom of the lower profile 26 of the fan frame, and the lower hinge mechanism 40 is in an open state.

[0125] Step S2: Figure 22c and Figure 22d As shown, the upper fan side fixing base 35 of the upper hinge mechanism 30 is installed into the fan mounting groove 23 at the top of the fan frame upper profile 25, and the upper fan side fixing base 35 is fixedly connected to the fan frame 21, so that the upper hinge mechanism 30 as a whole is first fixed at the right end of the top of the fan frame upper profile 25, and the upper hinge mechanism 30 is in an open state.

[0126] Step S3, the worker lifts the door and window sash 20 and installs the door and window sash 20 into the fixed outer frame 10 from the rear side of the fixed outer frame 10; when installing, the lower frame side connecting component 41 of the lower hinge mechanism 40 will be inserted into the frame installation groove 11 at the lower corner of the fixed outer frame 10; due to the arrangement of the first installation arm 12 on the top surface of the lower outer frame profile 14, when the lower frame side connecting component 41 is inserted into the frame installation groove 11 at the lower corner of the fixed outer frame 10, the door and window sash 20 will be tilted downward away from the side of the fixed outer frame 10 (i.e., the rear side when in the open state), as shown in FIG. Figure 22e As shown, this is to avoid the lower frame side connection component 41 from colliding with the first installation arm 12 on the top surface of the lower outer frame profile 14.

[0127] Step S4: The adjustment connection component 37 in the upper hinge mechanism 30 is in the unlocked state, so that the upper fan side hinge plate 34 can swing up and down around the fulcrum component 36, thereby causing the upper frame side connection component 31 connected to the right end of the upper fan side hinge plate 34 to tilt downward. Figure 11 and Figure 12 At this time, the upper frame side connection assembly 31 is lower than the first mounting arm 12 on the bottom surface of the outer frame upper profile 13.

[0128] Step S5: Since the upper frame side connection component 31 is tilted downward and lower than the first mounting arm 12 on the bottom surface of the outer frame upper profile 13, the upper frame side connection component 31 of the upper hinge mechanism 30 can be easily inserted into the frame mounting groove 11 at the upper corner of the fixed outer frame 10. The upper frame side connection component 31 will not collide with the first mounting arm 12 on the bottom surface of the outer frame upper profile 13, making this step easy to perform.

[0129] Step S6, make the adjustment connection component 37 in the upper hinge mechanism 30 in a locked state, then the upper fan side hinge plate 34 is in a horizontal state and cannot swing up and down; in the process of switching the adjustment connection component 37 from the unlocked state to the locked state, the left end of the upper fan side hinge plate 34 swings downward, and the right end of the upper fan side hinge plate 34 swings upward, which makes the upper frame side connection component 31 connected to the right end of the upper fan side hinge plate 34 move upward, and the upper frame side connection component 31 is inserted into the frame mounting groove 11 at the upper corner of the fixed outer frame 10.

[0130] Step S7: Fix the lower frame-side connecting assembly 41 of the lower hinge mechanism 40 to the lower corner of the fixed outer frame 10, and fix the upper frame-side connecting assembly 31 of the upper hinge mechanism 30 to the upper corner of the fixed outer frame 10. Of course, in step S3, the lower frame-side connecting assembly 41 can also be inserted into the frame mounting groove 11 at the lower corner of the fixed outer frame 10 before fixing the lower frame-side connecting assembly 41 to the fixed outer frame 10, and then the upper frame-side connecting assembly 31 of the upper hinge mechanism 30 can be inserted into the frame mounting groove 11 at the upper corner of the fixed outer frame 10.

[0131] After the doors and windows are assembled, the upper right corner of the doors and windows, such as Figure 3 and Figure 5 As shown, the upper hinge mechanism 30 is assembled between the top of the sash frame 21 and the fixed outer frame 10, the upper frame side connecting component 31 is accommodated in the frame mounting groove 11 at the upper right corner of the fixed outer frame 10 and is fixed to the fixed outer frame 10, and the bottom of the upper sash side fixing base 35 is accommodated in the sash mounting groove 23 at the top of the sash frame upper profile 25 and is fixed to the sash frame upper profile 25. At the lower right corner of the door and window, as shown Figure 4 and Figure 6 As shown, the lower hinge mechanism 40 is assembled between the bottom of the sash frame 21 and the fixed outer frame 10, the lower frame side connecting component 41 is accommodated in the frame mounting groove 11 at the lower right corner of the fixed outer frame 10 and is fixed to the fixed outer frame 10, and the top of the lower sash side fixing base 45 is accommodated in the sash mounting groove 23 at the bottom of the sash frame lower profile 26 and is fixed to the sash frame 21.

[0132] Preferably, if Figure 8 and Figure 21 As shown, the upper frame side connection component 31 includes an L-shaped sheet metal part, and the lower frame side connection component 41 includes an L-shaped die casting part. Figure 3 and Figure 5 As shown, the horizontal section of the L-shaped sheet metal is fixed and locked to the right end of the outer frame upper profile 13 by screws, and the vertical section of the L-shaped sheet metal is fixed and locked to the upper end of the outer frame right profile 16 by screws. Figure 4 and Figure 6As shown, the horizontal section of the L-shaped die-casting is screwed and locked to the right end of the outer frame lower profile 14, and the vertical section of the L-shaped die-casting is screwed and locked to the lower end of the outer frame right profile 16. The upper sash-side connecting assembly 32 rotates inward or outward relative to the upper frame-side connecting assembly 31 through the upper rotating connecting assembly 33, and the lower sash-side connecting assembly 42 rotates inward or outward relative to the lower frame-side connecting assembly 41 through the lower rotating connecting assembly 43, thereby opening or closing the door and window sash 20 inward relative to the fixed outer frame 10.

[0133] The upper hinge mechanism 30 , the door and window equipped with the upper hinge mechanism 30 , and the door and window installation method involved in the present application have the following advantages.

[0134] 1. The upper hinge mechanism 30 and the lower hinge mechanism 40 are both integrated structures and have good structural strength. After being installed between the fixed outer frame 10 and the sash frame 21 of the door and window, the stability of the overall structure of the door and window can be improved, making the door and window durable and reducing the failure rate.

[0135] 2. Based on the configuration of the upper hinge mechanism 30 and the lower hinge mechanism 40 of the integrated structure in the door and window, when assembling the door and window, the lower hinge mechanism 40 of the integrated structure is first fixed to the bottom of the door and window sash 20, and the upper hinge mechanism 30 of the integrated structure is fixed to the top of the door and window sash 20, and then the door and window sash 20 with the upper hinge mechanism 30 and the lower hinge mechanism 40 fixed thereto is installed into the fixed outer frame 10. The present application provides a fulcrum assembly 36 and an adjustment connection assembly 37 in the upper hinge mechanism 30 of the integrated structure. When the door and window sash 20 with the upper hinge mechanism 30 and the lower hinge mechanism 40 fixed thereto is installed into the fixed outer frame 10, by putting the adjustment connection assembly 37 into the unlocked state, the right end of the upper sash-side hinge plate 34 connected to the upper frame-side hinge plate is pressed downward, causing the upper frame-side connection assembly 31 to tilt downward as a whole, lower than the first mounting arm 12 on the bottom surface of the outer frame upper profile 13. In this way, the upper frame side connecting assembly 31 can easily pass over the first mounting arm 12 on the upper side of the fixed outer frame 10, so that the upper frame side connecting assembly 31 can be easily inserted into the frame mounting groove 11 at the upper right corner of the fixed outer frame 10 without colliding with the first mounting arm 12 on the upper side of the fixed outer frame 10, making it simple and easy to install the door and window sash 20 fixed with the upper hinge mechanism 30 and the lower hinge mechanism 40 of the integrated structure in the fixed outer frame 10. After the upper frame side connecting assembly 31 is inserted into the frame mounting groove 11 at the upper right corner of the fixed outer frame 10, the adjustment connecting assembly 37 is locked, and the upper frame side connecting assembly 31 is then fixed to the fixed outer frame 10, thereby completing the assembly of the upper hinge mechanism 30 in the door and window, and realizing the installation of the door and window sash 20 fixed with the upper hinge mechanism 30 of the integrated structure in the fixed outer frame 10.

[0136] Furthermore, the structure of the fulcrum assembly 36 is preferably as follows: Figures 8 to 15,as well as Figure 18 and Figure 19 As shown, the fulcrum assembly 36 includes a vertically arranged fulcrum pin 361 and a fulcrum through-hole 351 that is provided in the upper sash-side fixed base 35 and extends vertically therethrough. The upper end of the fulcrum pin 361 is fixed to the upper sash-side hinge plate 34. The fulcrum pin 361 is inserted into the fulcrum through-hole 351 so as to be movable up and down. The diameter of the fulcrum through-hole 351 is larger than the outer diameter of the fulcrum pin 361, allowing the fulcrum pin 361 to swing within the fulcrum through-hole 351. Thus, when the adjustment connection assembly 37 is in the unlocked state, the cooperation between the fulcrum pin 361 and the fulcrum through-hole 351 allows the upper sash-side hinge plate 34 to swing up and down with the fulcrum pin 361 as the center, and during the swinging process, the fulcrum pin 361 is allowed to swing up and down within the fulcrum through-hole 351.

[0137] Furthermore, if Figures 8 to 15 ,as well as Figure 19 As shown, the fulcrum assembly 36 also includes a limiting groove 352 opened in the upper fan side fixed base 35, and the limiting groove 352 is connected to the bottom of the fulcrum through hole 351; the groove width of the limiting groove 352 is much larger than the aperture of the fulcrum through hole 351, that is, the groove wall of the limiting groove 352 is distributed along the radial direction of the fulcrum pin 361 on the periphery of the hole wall of the fulcrum through hole 351, so that the upper fan side fixed base 35 forms a limiting step portion 353 at the connection between the fulcrum through hole 351 and the limiting groove 352; the lower end of the fulcrum pin 361 is fixed with a limiting flange 362, and the groove width of the limiting groove 352 should allow the limiting flange 362 to be movably accommodated in the limiting groove 352, and there is a large gap between the outer periphery of the limiting flange 362 and the groove wall of the limiting groove 352. When the upper fan-side hinge plate 34 swings up and down, the limiting flange 362 can abut against the bottom surface of the limiting step portion 353 .

[0138] When the adjustment connection assembly 37 is in the unlocked state, as shown in FIG. Figure 12As shown, as the upper sash-side hinge plate 34 swings up and down around the fulcrum pin 361, the upper sash-side hinge plate 34 drives the fulcrum pin 361 to swing up and down, while simultaneously, the limiting flange 362 swings up and down in the limiting groove 352. During this process, the limiting step 353 abuts against the upper side of the limiting flange 362, limiting the upward swing of the limiting flange 362 and thus limiting the upward swing range of the upper sash-side hinge plate 34. The upper sash-side fixed base 35 abuts against the lower side of the upper sash-side hinge plate 34, limiting the downward swing of the upper sash-side hinge plate 34 and thus limiting the downward swing range of the upper sash-side hinge plate 34. In this way, when the door and window sash 20, to which the upper hinge mechanism 30 is attached, is installed in the fixed outer frame 10, the upward and downward swinging range of the upper sash-side hinge plate 34 is reliably limited to a reasonable range, allowing the upper frame-side connecting assembly 31 to be easily inserted into the frame mounting groove 11 at the upper corner of the fixed outer frame 10 while preventing the upper sash-side hinge plate 34 from colliding with the fixed outer frame 10 due to a large swinging range. In addition, the limiting step 353 can also constrain the limiting flange 362 in the limiting groove 352, thereby preventing the fulcrum pin 361 from disengaging upward from the fulcrum through hole 351.

[0139] Preferably, the fulcrum pin 361 is a one-piece metal component, which provides good structural strength. Furthermore, the fulcrum pin 361 is riveted to the upper sash hinge plate 34, ensuring a secure connection between them. This effectively enhances the structural strength of the one-piece upper hinge mechanism 30, ensuring the smooth opening and closing performance of the door or window.

[0140] Furthermore, the preferred structure of the adjustment connection assembly 37 is as follows: Figures 8 to 14 、 Figures 16 to 20 As shown, the adjustment connection assembly 37 includes a vertically arranged adjustment pin 371, an adjustment through hole 341 opened at the left end of the upper fan side hinge plate 34 and passing through from top to bottom, and a connection hole 354 opened in the upper fan side fixed base 35, the adjustment pin 371 includes an upper shaft section 372, a lower shaft section 373, and an adjustment protrusion 374 radially protruding from the outer peripheral surface of the upper end of the upper shaft section 372; the lower shaft section 373 is rotatably connected to the connection hole 354; the adjustment through hole 341 includes a hole main body 342, and a hole limiting portion 343 connected to the right side of the hole main body 342, the upper shaft section 372 is passed through the hole main body 342, the aperture of the hole main body 342 is larger than the outer diameter of the upper shaft section 372, allowing the upper fan side hinge plate 34 and the adjustment pin 371 to swing relative to each other, and the contour of the hole limiting portion 343 is adapted to the outer peripheral contour of the adjustment protrusion 374.

[0141] When the upper fan side hinge plate 34 is in a horizontal state, Figure 10As shown, the adjusting protrusion 374 on the adjusting pin 371 is higher than the top surface of the upper sash side hinge plate 34, and the adjusting pin 371 can be rotated at this time. When the upper sash side hinge plate 34 is in a horizontal state and the adjusting pin 371 is rotated, the adjusting protrusion 374 can be rotated to the side just above the hole limiter 343; when the adjusting pin 371 is rotated so that the adjusting protrusion 374 is rotated to the side just above the hole limiter 343, as shown in FIG. Figure 11 and Figure 12 As shown, the adjusting protrusion 374 is circumferentially aligned with the hole limiting portion 343. At this time, the adjusting protrusion 374 can be accommodated in the hole limiting portion 343, allowing the left end of the upper fan side hinge plate 34 to swing upward, and the adjusting connection assembly 37 is in an unlocked state; when the adjusting pin 371 is rotated to make the adjusting protrusion 374 pass from the upper side of the hole limiting portion 343, as shown in FIG. Figure 13 and Figure 14 As shown, the adjustment protrusion 374 is circumferentially offset from the hole stop 343. At this point, the adjustment protrusion 374, the upper sash-side hinge plate 34, and the upper sash-side fixed base 35 abut against each other from top to bottom, preventing the upper sash-side hinge plate 34 from swinging up and down, and the adjustment connection assembly 37 is in a locked state. Alternatively, in other embodiments, when the adjustment connection assembly 37 is in the locked state, a very small gap exists between the adjustment protrusion 374 and the upper sash-side hinge plate 34. In the adjustment connection assembly 37 involved in this application, the adjustment connection assembly 37 can be switched to the unlocked or locked state by simply rotating the adjustment pin 371, which facilitates operation by workers and further facilitates the installation of the door and window sash 20, which is fixed with the integrated upper hinge mechanism 30, in the fixed outer frame 10.

[0142] In this embodiment, Figure 17 and Figure 20 As shown, there is one adjustment protrusion 374 on the adjustment pin 371, and one hole stopper 343 on the upper sash-side hinge plate 34, which facilitates the production of the adjustment pin 371 and the processing of the adjustment through hole 341 in the upper sash-side hinge plate 34. Of course, in other embodiments, there may be two adjustment protrusions 374 on the adjustment pin 371, and two left and right, or two front and rear, hole stoppers 343 on the upper sash-side hinge plate 34, depending on actual needs.

[0143] Furthermore, if Figure 20 As shown, the outer peripheral surface of the adjusting protrusion 374 is an arc surface, and the outer peripheral surface of the adjusting protrusion 374 and the outer peripheral surface of the upper shaft section 372 are both connected by an arc surface transition; Figure 17As shown, the contour of the adjustment hole 341 matches the outer contour of the adjustment pin 371 at the adjustment protrusion 374, with a gap between the two. This way, when the upper hinge mechanism 30 is assembled, the adjustment connection assembly 37 remains locked. At this point, the portion of the adjustment pin 371 where the adjustment protrusion 374 is located protrudes upward from the adjustment hole 341 of the upper hinge plate 34. The outer contour of the adjustment pin 371 at the adjustment protrusion 374 is a circular arc, without any sharp edges. Therefore, even if this portion of the adjustment pin 371 is exposed on the upper side of the upper hinge plate 34, even if a worker bumps into it, it poses no safety hazard.

[0144] Preferably, if Figure 20 As shown, a rotation slot 376 is formed on the top surface of the adjustment pin 371. The rotation slot 376 can be a triangular slot, a square slot, or a hexagonal slot. By inserting a rotation tool that matches the rotation slot 376 into the rotation slot 376, the adjustment pin 371 can be easily rotated to switch the state of the adjustment connection assembly 37, so that the adjustment connection assembly 37 is in an unlocked state or a locked state, making the operation of switching the state of the adjustment connection assembly 37 simple and easy to implement.

[0145] Furthermore, the rotation of the adjusting pin 371 should satisfy the following requirements: it is allowed to rotate only when external force is applied to the adjusting pin 371, and it is not allowed to rotate when no external force is applied to the adjusting pin 371. Therefore, this application increases the friction between the adjusting pin 371 and the upper fan side fixed base 35 through the following two friction-increasing methods.

[0146] Increase friction method 1: Figure 14 and Figure 16 As shown, the outer peripheral surface of the lower shaft section 373 is in surface contact with the wall of the connecting hole 354, which increases the friction between the lower shaft section 373 and the upper fan side fixed base 35, so that the lower shaft section 373 cannot rotate freely. The lower shaft section 373 is only allowed to rotate in the connecting hole 354 when external force is applied to the adjusting pin 371, thereby ensuring the stability of the adjusting connecting assembly 37 in the unlocked state or the locked state.

[0147] Increase friction method 2: Figure 14 and Figure 16 As shown, the outer diameter of the upper shaft section 372 is larger than the outer diameter of the lower shaft section 373, so that the adjusting pin 371 is formed with an axial step portion 375 at the connection between the upper shaft section 372 and the lower shaft section 373, and the top surface of the upper fan side fixed base 35 is provided with a friction increasing protrusion 355 located on the outer peripheral side of the connecting hole 354, and the axial step portion 375 abuts against the friction increasing protrusion 355, and the two are in surface contact, thereby increasing the friction force between the upper fan side fixed base 35 and the adjusting pin 371, and ensuring that the adjusting pin 371 is allowed to rotate only when external force is applied to the adjusting pin 371, thereby more reliably ensuring the stability of the adjusting connection assembly 37 in the unlocked state or the locked state.

[0148] In addition, the lower end of the adjusting pin 371 can be pierced so that the adjusting pin 371 is integrally formed with a thickened pier head at the lower end of the lower shaft section 373, and the pier head abuts against the bottom surface of the upper fan side fixed base 35, thereby limiting the adjusting pin 371 from detaching from the connecting hole 354 of the upper fan side fixed base 35.

[0149] Preferably, the adjustment pin 371 is a metal part with an integrated structure, so that the adjustment pin 371 itself has good structural strength, effectively improving the structural strength of the integrated upper hinge mechanism 30 itself, and ensuring the opening and closing performance of doors and windows.

[0150] Furthermore, if Figure 22c and Figure 22d As shown, the right end of the sash mounting groove 23 at the top of the sash frame upper profile 25 is the upper hinge insertion port, which allows the upper sash side fixing base 35 to slide leftward into the sash mounting groove 23 at the top of the sash frame upper profile 25; after the upper sash side fixing base 35 slides leftward into place, the first locking member 50 is used to securely connect the upper sash side fixing base 35 to the sash frame upper profile 25, thereby securing the upper sash side fixing base 35 to the right end of the top of the door and window sash 20. Figure 22a and Figure 22b As shown, the right end of the sash mounting groove 23 at the bottom of the sash frame lower profile 26 is the lower hinge insertion port. The lower hinge insertion port allows the lower sash side fixing base 45 to slide leftward into the sash mounting groove 23 at the bottom of the sash frame lower profile 26. After the lower sash side fixing base 45 slides leftward into place, the second locking member 60 is used to securely connect the lower sash side fixing base 45 to the sash frame lower profile 26, thereby securing the lower sash side fixing base 45 to the right end of the bottom of the door and window sash 20. This facilitates the installation and fixation of the upper hinge mechanism 30 on the top of the sash frame 21 and the installation and fixation of the lower hinge mechanism 40 on the bottom of the sash frame 21. The first locking member 50 and the second locking member 60 are both locking screws.

[0151] Furthermore, if Figure 8 and Figure 21As shown, both the upper sash-side fixed base 35 and the lower sash-side fixed base 45 include an adjustment seat 71, a connecting seat 72, and an adjustment bolt 73. The adjustment seat 71 is located on the left side of the connecting seat 72. The adjustment seat 71 and the connecting seat 72 are connected by an adjustment bolt 73. The adjustment bolt 73 extends straight along the extension direction of the sash mounting grooves 23 at the top and bottom of the sash frame 21. The adjustment bolt 73 is rotatably supported in the adjustment seat 71 and threaded into the left end of the connecting seat 72. As for the upper hinge mechanism 30, the right section of the connecting seat 72 of the upper sash-side fixed base 35 is connected to the upper sash-side hinge plate 34 via a fulcrum assembly 36 and an adjustment connecting assembly 37. The adjustment seat 71 of the upper sash-side fixed base 35 is fixed to the sash frame upper profile 25 via two front and rear first locking members 50. Regarding the lower hinge mechanism 40, the right section of the connecting seat 72 of the lower sash-side fixed base 45 is fixedly connected to the lower sash-side hinge plate 44. The adjustment seat 71 of the lower sash-side fixed base 45 is fixed to the sash frame lower profile 26 via two front and rear second locking members 60. Preferably, the connecting seat 72 of the lower sash-side fixed base 45 and the lower sash-side hinge plate 44 can be combined into a single component. In this way, after the door and window are assembled, rotating the adjustment bolt 73 can drive the adjustment seat 71 to move relative to the connecting seat 72. The adjustment seat 71 is fixed to the door and window sash 20, thereby driving the door and window sash 20 to move relative to the fixed outer frame 10, thereby fine-tuning the gap between the door and window sash 20 and the fixed outer frame 10 and optimizing the assembly relationship between the door and window sash 20 and the fixed outer frame 10.

[0152] Preferably, if Figure 8 and Figure 21 As shown, the adjustment seat 71 and the connecting seat 72 are connected by a pre-assembled structure. During the transportation of the doors and windows, the pre-assembled structure ensures that the adjustment bolt 73 is securely inserted into the adjustment seat 71 and the connecting seat 72, thereby preventing the adjustment seat 71 from accidentally falling off the connecting seat 72 during transportation. This provides better conditions for subsequent on-site assembly of the doors and windows, facilitating subsequent on-site assembly and installation of the doors and windows. The pre-assembled structure between the adjustment seat 71 and the connecting seat 72 is prior art. For details, please refer to the hinge for doors and windows disclosed in Chinese Utility Model Patent No. CN219974211U, and therefore will not be described in detail here.

[0153] Preferably, if Figure 9 and Figure 21 As shown, along the thickness direction of the door and window sash 20, the front and rear sides of the bottom of the adjustment seat 71 and the front and rear sides of the connecting seat 72 are provided with limiting ribs 74. Figure 22c and Figure 22dAs shown, after the upper fan side fixing base 35 is slid from the right end of the fan frame upper profile 25 to the left into its fan mounting groove 23, a pair of second mounting arms 24 on the top surface of the fan frame upper profile 25 abut against the front and rear sides of the bottom of the adjustment seat 71 and the bottom of the connecting seat 72 of the upper fan side fixing base 35, and the limiting rib 74 of the upper fan side fixing base 35 is clamped in the pair of second mounting arms 24 on the top surface of the fan frame upper profile 25, limiting the displacement of the upper fan side fixing base 35 in the up and down directions and the front and back directions, so that the upper fan side fixing base 35 can only slide left and right along the extension direction of the fan mounting groove 23 at the top of the fan frame 21, which can make the installation of the upper fan side fixing base 35 more convenient and ensure the installation accuracy of the upper fan side fixing base 35 in the fan mounting groove 23 at the top of the fan frame 21. Similarly, as Figure 22a and Figure 22b As shown, after the lower fan side fixing base 45 is slid to the left from the right end of the fan frame lower profile 26 into its fan mounting groove 23, a pair of second mounting arms 24 on the bottom surface of the fan frame lower profile 26 abuts against the front and rear sides of the top of the adjustment seat 71 and the top of the connecting seat 72 of the lower fan side fixing base 45, and the limiting rib 74 of the lower fan side fixing base 45 is clamped in the pair of second mounting arms 24 on the bottom surface of the fan frame lower profile 26, limiting the lower fan side fixing base 45 from offsetting in the up and down directions and the front and back directions, so that the lower fan side fixing base 45 can only slide left and right along the extension direction of the fan mounting groove 23 at the bottom of the fan frame 21, which can not only make the installation of the lower fan side fixing base 45 more convenient, but also ensure the installation accuracy of the lower fan side fixing base 45 in the fan mounting groove 23 at the bottom of the fan frame 21.

[0154] In summary, the assembly process of the doors and windows with the above structure is as follows.

[0155] First, as Figure 22a and Figure 22b As shown, the lower fan side fixing base 45 of the lower hinge mechanism 40 is slid from the right end of the bottom of the lower fan frame profile 26 to the left into the fan mounting groove 23. After sliding to the left into place, two locking screws are used to fix the adjustment seat 71 of the lower fan side fixing base 45 to the lower fan frame profile 26, thereby fixing the lower hinge mechanism 40 as a whole at the right end of the bottom of the lower fan frame profile 26; at the same time, the lower hinge mechanism 40 is in an open state.

[0156] Second, if Figure 22c and Figure 22dAs shown, the upper fan side fixing base 35 of the upper hinge mechanism 30 is slid from the right end of the top of the fan frame upper profile 25 to the left into the fan mounting groove 23. After sliding to the left into place, two locking screws are used to fix the adjustment seat 71 of the upper fan side fixing base 35 to the fan frame upper profile 25, thereby fixing the upper hinge mechanism 30 as a whole at the right end of the top of the fan frame upper profile 25; at the same time, the upper hinge mechanism 30 is placed in an open state, and the adjusting pin 371 is rotated to put the adjusting connection assembly 37 in an unlocked state, that is, the adjusting protrusion 374 of the adjusting pin 371 is located directly above the hole limit portion 343 of the upper fan side hinge plate 34.

[0157] Third, if Figure 22e As shown, the worker lifts the door and window sash 20, first tilts one side of the door and window sash 20 downward, and inserts the lower frame side connecting component 41 of the lower hinge mechanism 40 into the frame mounting groove 11 at the lower corner of the fixed outer frame 10; then, the right end side of the upper sash side hinge plate 34 is swung downward to tilt the upper frame side connecting component 31 downward, and then the upper frame side connecting component 31 of the upper hinge mechanism 30 is easily inserted into the frame mounting groove 11 at the upper corner of the fixed outer frame 10.

[0158] Fourth, first restore the horizontal state of the upper fan side hinge plate 34, and insert the upper frame side connecting assembly 31 into the frame mounting groove 11 at the upper corner of the fixed outer frame 10; then, rotate the adjusting pin 371 to put the adjusting connecting assembly 37 in a locked state, that is, the adjusting protrusion 374 of the adjusting pin 371 is rotated an angle from the side directly above the hole limit portion 343 of the upper fan side hinge plate 34.

[0159] Fifth, fix the lower frame side connection component 41 of the lower hinge mechanism 40 to the lower corner of the fixed outer frame 10 , and fix the upper frame side connection component 31 of the upper hinge mechanism 30 to the upper corner of the fixed outer frame 10 .

[0160] Of course, in the second step above, before using two locking screws to fix the adjustment seat 71 of the upper sash side fixed base 35 to the sash frame upper profile 25, as shown in FIG. Figure 23As shown, an anti-falling component 80 can be fixed on the top of the upper profile 25 of the sash frame. The anti-falling component 80 can be made of screws or bolts. The anti-falling component 80 is fixed in the part of the sash mounting groove 23 on the right side of the upper sash side fixing base 35. After the anti-falling component 80 is fixed, its head constitutes an anti-slip protrusion, and the anti-slip protrusion is also distributed in the part of the sash mounting groove 23 on the right side of the upper sash side fixing base 35. In this way, when a malfunction occurs in the use of the door and window, for example, the locking screws used to fix the upper sash side fixing base 35 and the upper profile 25 of the sash frame are completely loosened, the door and window sash 20 will produce a certain amount of downward movement under the action of gravity, especially when the door and window sash 20 is opened, the door and window sash 20 will produce a relative movement with respect to the upper hinge mechanism 30, causing the upper sash side fixing base 35 of the upper hinge mechanism 30 to slide to the right from the sash mounting groove 23 at the top of the door and window sash 20, and the anti-slip protrusion can slide along the sliding direction of the upper sash side fixing base 35. When the upper sash 35 is blocked on the right side, the upper sash 35 will inevitably abut against the anti-slip protrusion on its right side when it slides to the right from the sash mounting groove 23. The anti-slip protrusion effectively blocks the upper sash 35, limiting the upper sash 35 from further sliding out of the sash mounting groove 23, preventing the upper sash 35 from completely sliding out of the sash mounting groove 23, thereby preventing the upper hinge mechanism 30 from being completely separated from the door and window sash 20, thereby preventing the door and window sash 20 from falling, and playing the role of preventing the window from falling.

[0161] In addition, when the locking screws for fixing the upper sash side fixing base 35 and the sash frame upper profile 25 are not loosened or not completely loosened, the upper sash side fixing base 35 and the sash frame upper profile 25 are still fixedly connected. At this time, the upper sash side fixing base 35 and the upper sash side hinge plate 34 are not in contact with the anti-slip protrusion, that is, the upper hinge mechanism 30 is not in contact with the anti-slip component 80. The vibration generated by the upper hinge mechanism 30 during the opening and closing process of the door and window sash 20 will not be transmitted to the anti-slip protrusion, so that the anti-slip component 80 is not affected by the vibration generated by the upper hinge mechanism 30 The anti-falling component 80 is strictly prevented from loosening relative to the upper profile 25 of the sash frame due to the vibration of the upper hinge mechanism 30, thereby ensuring the reliability of the anti-falling component 80 being fixed in the upper profile 25 of the sash frame, and finally reliably ensuring the anti-slip protrusion of the anti-falling component 80 to resist the upper sash side fixed base 35 when the upper sash side fixed base 35 of the subsequent upper hinge mechanism 30 slips from the sash mounting groove 23 of the upper profile 25 of the sash frame, so that the doors and windows have high load-bearing characteristics at the upper hinge mechanism 30, and finally effectively improve the reliability of the anti-falling fan.

[0162] Preferably, in order to facilitate the screwing of the screws or bolts constituting the anti-falling component 80 into the upper profile 25 of the sash frame from top to bottom, a tightening operation through hole running vertically through can be opened in the upper sash side hinge plate 34 of the upper hinge mechanism 30, and the anti-slip protrusion is exposed from the tightening operation through hole, making it convenient to fix and install the anti-falling component 80.

[0163] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0164] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. An upper hinge mechanism, for assembling between a fixed outer frame (10) and a sash frame (21) of a door or window, the upper hinge mechanism (30) comprising an upper frame-side connecting assembly (31) for fixing to the fixed outer frame (10), an upper sash-side connecting assembly (32) for fixing to the sash frame (21), and an upper rotating connecting assembly (33), the upper sash-side connecting assembly (32) comprising an upper sash-side hinge plate (34) and an upper sash-side fixed base (35), the upper sash-side hinge plate (34) being connected to the upper frame-side connecting assembly (31) via the upper rotating connecting assembly (33); The upper hinge mechanism (30) is an integrated structure that keeps the upper frame side connection component (31), the upper rotation connection component (33) and the upper fan side connection component (32) connected in sequence; Its characteristics are: The upper hinge mechanism (30) further comprises a fulcrum assembly (36) and an adjusting connection assembly (37); the upper sash side hinge plate (34) is mounted on the upper sash side fixed base (35) via the fulcrum assembly (36) so as to be able to swing up and down; one end of the upper sash side hinge plate (34) away from the upper frame side connection assembly (31) is connected to the upper sash side fixed base (35) via the adjusting connection assembly (37); the adjusting connection assembly (37) has an unlocking state for allowing the upper sash side hinge plate (34) to swing up and down around the fulcrum assembly (36), and a locking state for restricting the upper sash side hinge plate (34) from swinging up and down around the fulcrum assembly (36); When the adjustment connection assembly (37) is in an unlocked state, the upper frame side connection assembly (31) is tilted downward by swinging one end of the upper fan side hinge plate (34) connected to the adjustment connection assembly (37) upward; When the adjustment connection assembly (37) is in a locked state, the upper fan side hinge plate (34) is in a horizontal state.

2. The upper hinge mechanism according to claim 1, characterized in that: The fulcrum assembly (36) includes a vertically arranged fulcrum pin (361) and a fulcrum through hole (351) provided in the upper sash side fixed base (35); the upper end of the fulcrum pin (361) is fixed in the upper sash side hinge plate (34); and the fulcrum pin (361) is movably provided in the fulcrum through hole (351) up and down.

3. The upper hinge mechanism according to claim 2, characterized in that: The fulcrum assembly (36) also includes a limiting groove (352) provided in the upper fan side fixed base (35), the limiting groove (352) is connected to the bottom of the fulcrum through hole (351), the groove wall of the limiting groove (352) is distributed on the periphery of the hole wall of the fulcrum through hole (351), the upper fan side fixed base (35) forms a limiting step portion (353) at the connection between the fulcrum through hole (351) and the limiting groove (352), and the lower end of the fulcrum pin (361) is fixed with a limiting flange (362), and the limiting flange (362) can be movably accommodated in the limiting groove (352) and can abut against the limiting step portion (353).

4. The upper hinge mechanism according to claim 2, characterized in that: The fulcrum pin (361) is a metal part with an integrated structure, and the fulcrum pin (361) is fixed to the upper fan side hinge plate (34) by riveting.

5. The upper hinge mechanism according to claim 1, characterized in that: The adjusting connection assembly (37) includes a vertically arranged adjusting pin (371), an adjusting through hole (341) provided in the upper fan side hinge plate (34), and a connecting hole (354) provided in the upper fan side fixed base (35); the adjusting pin (371) includes an upper shaft section (372), a lower shaft section (373), and at least one adjusting protrusion (374) radially protruding from the outer peripheral surface of the upper shaft section (372); the lower shaft section (373) is rotatably connected to the connecting hole (354); the adjusting through hole (341) includes a hole main body (342) and a hole limiting portion (343) connected to the side of the hole main body (342); the upper shaft section (372) is inserted into the hole main body (342); When the adjusting pin (371) is rotated so that the adjusting protrusion (374) is circumferentially aligned with the hole limiting portion (343), the adjusting protrusion (374) can be located in the hole limiting portion (343), and the adjusting connection assembly (37) is in an unlocked state; When the adjusting pin (371) is rotated so that the adjusting protrusion (374) and the hole limiting portion (343) are circumferentially offset, the adjusting protrusion (374), the upper fan side hinge plate (34) and the upper fan side fixed base (35) abut against each other in sequence from top to bottom, and the adjusting connection assembly (37) is in a locked state.

6. The upper hinge mechanism according to claim 5, characterized in that: One adjusting protrusion (374) is provided on the adjusting pin (371), and one hole limiting portion (343) is provided on the upper fan side hinge plate (34).

7. The upper hinge mechanism according to claim 5, characterized in that: The outer peripheral surface of the adjusting protrusion (374) is an arc surface, and the outer peripheral surface of the adjusting protrusion (374) and the outer peripheral surface of the upper shaft section (372) are both connected through an arc surface transition, and the contour of the adjusting through hole (341) is adapted to the outer peripheral contour of the adjusting pin (371) at the adjusting protrusion (374), and there is a gap between the two.

8. The upper hinge mechanism according to claim 5, characterized in that: The outer peripheral surface of the lower shaft section (373) and the hole wall of the connecting hole (354) are in surface contact fit.

9. The upper hinge mechanism according to claim 5, characterized in that: The outer diameter of the upper shaft section (372) is greater than the outer diameter of the lower shaft section (373); the adjusting pin (371) is formed with a shaft step portion (375) at the connection between the upper shaft section (372) and the lower shaft section (373); the top surface of the upper fan side fixed base (35) is provided with a friction-increasing protrusion (355) located on the outer peripheral side of the connecting hole (354); the shaft step portion (375) abuts against the friction-increasing protrusion (355), and the two are in surface contact with each other.

10. The upper hinge mechanism (30) according to claim 5, characterized in that: A rotation groove (376) is provided on the top surface of the adjusting pin (371).

11. The upper hinge mechanism according to claim 5, characterized in that: The adjusting pin (371) is a metal part with an integrated structure.

12. A door and window, comprising a fixed outer frame (10), a door and window sash (20) installed in the fixed outer frame (10) so as to be openable and closable, an upper hinge mechanism (30) and a lower hinge mechanism (40); a frame mounting groove (11) is provided on the inner circumference of the fixed outer frame (10), and the fixed outer frame (10) is fixedly provided with first mounting arms (12) on both sides of the frame mounting groove (11) along the thickness direction thereof; the door and window sash (20) comprises a sash frame (21) and a sash panel (22) installed in the sash frame (21), sash mounting grooves (23) are provided on the top and bottom surfaces of the sash frame (21), and the sash frame (21) is fixedly provided with second mounting arms (24) on both sides of the sash mounting groove (23) along the thickness direction thereof; Its characteristics are: The upper hinge mechanism (30) is the upper hinge mechanism (30) according to any one of claims 1 to 11; the lower hinge mechanism (40) includes a lower frame side connecting component (41), a lower fan side connecting component (42), and a lower rotating connecting component (43); the lower fan side connecting component (42) includes a lower fan side hinge plate (44) and a lower fan side fixed base (45); the lower fan side hinge plate (44) of the lower fan side connecting component (42) is connected to the lower frame side connecting component (41) through the lower rotating connecting component (43); the lower hinge mechanism (40) is an integrated structure that keeps the lower frame side connecting component (41), the lower rotating connecting component (43) and the lower fan side connecting component (42) connected in sequence; The upper hinge mechanism (30) is assembled between the top of the sash frame (21) and the fixed outer frame (10), the upper frame side connecting assembly (31) is accommodated in the frame mounting groove (11) at the upper corner of the fixed outer frame (10) and is fixed to the fixed outer frame (10), and the bottom of the upper sash side fixing base (35) is accommodated in the sash mounting groove (23) at the top of the sash frame (21) and is fixed to the sash frame (21); The lower hinge mechanism (40) is assembled between the bottom of the fan frame (21) and the fixed outer frame (10), the lower frame side connecting component (41) is accommodated in the frame mounting groove (11) at the lower corner of the fixed outer frame (10) and is fixed to the fixed outer frame (10), and the top of the lower fan side fixed base (45) is accommodated in the fan mounting groove (23) at the bottom of the fan frame (21) and is fixed to the fan frame (21).

13. The door and window according to claim 12, characterized in that: One end of the fan mounting groove (23) at the top of the fan frame (21) is an upper hinge insertion port for allowing the upper fan side fixing base (35) to slide in, and the upper fan side fixing base (35) is fixedly connected to the fan frame (21) through a first locking member (50); one end of the fan mounting groove (23) at the bottom of the fan frame (21) is a lower hinge insertion port for allowing the lower fan side fixing base (45) to slide in, and the lower fan side fixing base (45) is fixedly connected to the fan frame (21) through a second locking member (60).

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