Bearing hinge for inward opening and inward falling

Abstract

The utility model belongs to the technical field of door and window accessories, and provides a load-bearing hinge for inward opening and inward falling, which comprises a frame mounting seat and a sash mounting seat, the frame mounting seat and the sash mounting seat are hinged with a transmission arm through a load-bearing arm, the frame mounting seat comprises a load-bearing plate, one end of the load-bearing plate is hinged with one end of the load-bearing arm, and the other end of the load-bearing plate is hinged with one end of the transmission arm. The other end of the bearing arm is hinged to the sash installation base, the other end of the transmission arm is hinged to the sash installation base, and the middle of the transmission arm is hinged to the bearing arm. The frame mounting base further comprises a bearing insert and a bearing sliding piece which are arranged at the end, close to the bearing arm, of the bearing plate, the bearing insert is connected with the bearing plate, the bearing sliding piece is embedded in one side of the bearing insert, a first clamping block is arranged on the side, away from the bearing sliding piece, of the bearing insert, and a second clamping block is arranged on the side, away from the bearing insert, of the bearing sliding piece. The bearing hinge for inward opening and inward falling has the advantages of being high in bearing capacity, convenient to install and good in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window accessories, in particular to a load-bearing hinge for inward opening and tilting. Background Art

[0002] Hinges are common door and window hardware in daily life, usually used for the rotation connection between door and window frames and door and window sashes. Hinges are generally divided into exposed hinges and concealed hinges. Existing aluminum alloy door and window inward opening and tilting systems generally use concealed hinges.

[0003] When the window (door) sash is opened or tilted inward, the lower hinge needs to bear most of the weight of the window (sash). The lower hinge of the conventional hidden hinge on the market is usually only connected to the crossbeam of the window (door) frame. This type of hinge is not load-bearing enough, which will cause the hinge to deform and the window (door) sash to sag. In order to improve the load-bearing capacity, some hinges will add connection points with the hinge on the vertical beam of the window (door) frame in addition to connecting the hinge with the crossbeam of the window (door) frame. However, generally, only a vertical projection is set to abut against the vertical beam of the window (door) frame, and the load-bearing capacity is limited. In addition, some hinges will connect the vertical projection with the vertical beam of the window (door) frame by screws, which requires drilling and tapping on the window frame, which is complicated to install and not conducive to later position adjustment or upgrading.

[0004] The technical problem to be solved by the present application is: how to solve the problem that the existing inward-opening and inward-tilting hinges have poor load-bearing capacity and are complicated to install. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model aims to provide a load-bearing hinge for inward opening and tilting, which has the characteristics of simple and reliable structure, easy installation and good load-bearing performance.

[0006] The technical solution adopted by the utility model is: a load-bearing hinge for inward opening and inward tilting, comprising a frame mounting seat and a leaf mounting seat, the frame mounting seat and the leaf mounting seat are hingedly connected through a load-bearing arm and a transmission arm, the frame mounting seat comprises a load-bearing plate, one end of the load-bearing plate is hingedly connected to one end of the load-bearing arm, the other end of the load-bearing plate is hingedly connected to one end of the transmission arm, the other end of the load-bearing arm is hingedly connected to the leaf mounting seat, the other end of the transmission arm is hingedly connected to the leaf mounting seat, and the middle part of the transmission arm is hingedly connected to the load-bearing arm;

[0007] The frame mounting seat also includes a load-bearing insert and a load-bearing slide arranged on one end of the load-bearing plate near the load-bearing arm. The load-bearing insert is connected to the load-bearing plate, and the load-bearing slide is embedded in one side of the load-bearing insert. A first clamping block is arranged on the side of the load-bearing insert away from the load-bearing slide, and a second clamping block is arranged on the side of the load-bearing slide away from the load-bearing insert.

[0008] The load-bearing hinge for inward opening and tilting of the present application fixes the load-bearing plate on the crossbeam of the window frame, and arranges a load-bearing insert and a load-bearing slide at one end of the load-bearing plate close to the vertical beam of the window frame, and the load-bearing insert and the load-bearing slide are clamped on the crossbeam of the window frame. When the window sash is opened horizontally or tilted inward, the gravity transmitted by the load-bearing arm is distributed on the crossbeam and the vertical beam of the window frame, which greatly improves the load-bearing capacity of the hinge. In addition, the load-bearing insert and the load-bearing slide are arranged close to the end where the load-bearing plate and the load-bearing arm are hinged, so that the torsion can be better borne and the hinge can be prevented from being deformed.

[0009] In addition, the load-bearing insert and the load-bearing slide are of a separable and engageable structure, which makes installation easier. During installation, the first clamping block of the load-bearing insert is first clamped on the vertical beam of the window frame, and the second clamping block of the load-bearing slide is then clamped on the vertical beam of the window frame. The load-bearing slide is then slid toward the load-bearing insert until the two are engaged. The preset clamping groove on the vertical beam of the window frame is used to press the load-bearing insert and the load-bearing slide together as a whole, so that the load-bearing plate is tightly connected to the vertical beam of the window frame, which makes installation more convenient. In addition, the corresponding type of load-bearing slide can be selected according to the size of the clamping groove on the vertical beam of the window frame of different types, thereby improving the versatility of the hinge.

[0010] In some embodiments, a first stop block is provided on the side of the load-bearing insert close to the load-bearing slide, and a second stop block is provided on the side of the load-bearing slide close to the load-bearing insert, which is opposite to the first stop block. The second stop block is located on the side of the first stop block away from the hinge between the load-bearing arm and the load-bearing plate, and the first stop block and the second stop block abut each other.

[0011] By adopting the above technical solution, the first abutment block and the second abutment block are in relative contact with each other, and the first clamping block, the second clamping block and the window frame vertical beam slot are clamped and tightened, which can promote the load-bearing insert and the load-bearing slide to be assembled into a whole, prevent the two from being easily separated, and improve the reliability of the hinge structure.

[0012] In some embodiments, a slot is provided on a side of the load-bearing insert close to the load-bearing slide, and a plug-in block matching the slot is provided on a side of the load-bearing slide close to the load-bearing insert.

[0013] By adopting the above technical solution and utilizing the differential connection between the slot and the plug-in block, the load-bearing insert and the load-bearing slide can be assembled into a whole. By coordinating the first clamping block with the second clamping block and the window frame vertical beam clamping slot to tighten the load-bearing insert and the load-bearing slide, it can prevent the load-bearing insert and the load-bearing slide from being easily separated, thereby improving the structural reliability of the hinge.

[0014] In some embodiments, the frame mounting seat further comprises a locking member threadedly connected to the load-bearing slide, and the locking member penetrates the load-bearing slide along the length direction of the load-bearing plate.

[0015] By adopting the above technical solution, the locking member is tightened in the direction away from the load-bearing plate, so that the first clamping block is clamped and pressed tightly with the second clamping block and the window frame vertical beam slot to lock the position of the load-bearing slide and improve the reliability of the hinge structure.

[0016] In some embodiments, the load bearing insert is detachably connected to the load bearing plate.

[0017] By adopting the above technical solution, load-bearing inserts of different sizes can be replaced according to the slot model on the vertical beam of the window frame, which has better versatility.

[0018] In some embodiments, the frame mounting seat further comprises a plurality of rivets rotatably connected to the load-bearing plate, the rivets are arranged on the load-bearing plate at intervals, and one end of each rivet protruding from the load-bearing plate is connected to a rotary vane.

[0019] By adopting the above technical solution, the rotary vane is driven to rotate by rotating the rivet, so that the rotary vane is clamped with the slot on the window frame beam, so that the load-bearing plate is fixed on the window frame beam, and quick disassembly and installation are achieved.

[0020] In some embodiments, the fan mounting seat includes a base plate, an adjustment seat and an adjustment block. The base plate is hinged to one end of the load-bearing arm, the adjustment seat is connected to one end of the base plate, and the end of the transmission arm away from the load-bearing plate is rotatably connected to the adjustment seat through an inverted pin shaft. The adjustment seat is provided with a pin hole for the inverted pin shaft to swing. The adjustment block is arranged on the side of the adjustment seat close to the base plate. The adjustment block is detachably connected to the adjustment seat, and a tightening member is provided on the adjustment block.

[0021] By adopting the above technical solution, the bottom plate is clamped in the slot on the horizontal beam of the window sash, the adjustment block is clamped in the slot on the vertical beam of the window sash, the adjustment block is connected to the adjustment seat, and the sash mounting seat is installed on the window sash.

[0022] In some embodiments, the fan mounting seat also includes a horizontal adjustment screw and a vertical adjustment screw, the head of the horizontal adjustment screw is clamped with the adjustment seat, the rod of the horizontal adjustment screw is threadedly connected to the adjustment block, the vertical adjustment screw is threadedly connected to the end of the pin hole away from the transmission arm, and the bottom of the vertical adjustment screw is abutted against the top of the inner inverted pin shaft.

[0023] By adopting the above technical solution, the horizontal gap between the window sash and the window frame can be adjusted by turning the horizontal adjustment screw, and the vertical gap between the window sash and the window frame can be adjusted by turning the vertical adjustment screw, which can facilitate fine-tuning the position of the window sash and the window frame to ensure the air tightness and water tightness of the door and window system.

[0024] In some embodiments, the fan mounting seat further includes an angle adjustment screw, and the adjustment block and the transmission arm are provided with threaded holes that cooperate with the thread of the angle adjustment screw.

[0025] By adopting the above technical solution, the angle adjustment screw can adjust the opening angle of the window sash. When the angle adjustment screw is set in the threaded hole on the adjustment block, the window sash can be opened 180°. When the angle adjustment screw is set in the threaded hole on the transmission arm, the window sash can only be opened 90° due to the limitation of the angle adjustment screw.

[0026] In some embodiments, one end of the load-bearing arm away from the load-bearing plate is hinged to a first connecting arm, and the other end of the first connecting arm is hinged to the fan mounting seat. The end of the transmission arm away from the fan mounting seat is hinged to a second connecting arm, and the other end of the second connecting arm is hinged to the load-bearing plate.

[0027] By adopting the above technical solution, the first connecting arm and the second connecting arm can widen the range of the opening angle of the window sash. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of a preferred embodiment of the utility model, in which a load-bearing hinge for inward opening and tilting is in a 90° open state;

[0029] Figure 2 for Figure 1 Another structural schematic diagram of the inwardly opening and tilting load-bearing hinge in a 90° open state is shown.

[0030] Figure 3 for Figure 1 The structural schematic diagram of the load-bearing hinge for inward opening and tilting shown is in a 180° open state;

[0031] Figure 4 for Figure 1 The structural exploded schematic diagram of the load-bearing hinge middle frame mounting seat for inward opening and tilting shown;

[0032] Figure 5 for Figure 1 The cross-sectional structure diagram of the load-bearing hinge for inward opening and tilting along the AA line is shown;

[0033] Figure 6 for Figure 1 The structure diagram shown is that the load-bearing hinge for inward opening and tilting is installed in the inward opening and tilting system.

[0034] In the figure: 100, load-bearing hinge for inward opening and tilting; 10, frame mounting seat; 11, load-bearing plate; 111, mounting block; 12, load-bearing insert; 121, first clamping block; 122, first stop block; 13, load-bearing slide; 131, second clamping block; 132, second stop block; 14, locking member; 15, rivet; 16, rotary vane; 20, fan mounting seat; 21, bottom plate; 22, adjustment seat; 221, pin hole; 23, adjustment block; 24, tightening member; 25, inverted pin shaft; 26, horizontal adjustment screw; 27, vertical adjustment screw; 28, angle adjustment screw; 29, threaded hole; 30, load-bearing arm; 31, first connecting arm; 40, transmission arm; 41, second connecting arm. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. When the number of an element is referred to as "plurality", it may be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0038] See also Figures 1 to 6, which is a load-bearing hinge 100 for inward opening and tilting in a preferred embodiment of the utility model, includes a frame mounting seat 10 and a sash mounting seat 20, the frame mounting seat 10 and the sash mounting seat 20 are hingedly connected through a load-bearing arm 30 and a transmission arm 40, the frame mounting seat 10 includes a load-bearing plate 11, one end of the load-bearing plate 11 is hingedly connected to one end of the load-bearing arm 30, and the other end is hingedly connected to one end of the transmission arm 40, the other end of the load-bearing arm 30 is hingedly connected to the sash mounting seat 20, and the other end of the transmission arm 40 is hingedly connected to the sash mounting seat 20. The mounting seat 20 is hinged, and the middle part of the transmission arm 40 is hinged to the load-bearing arm 30; the frame mounting seat 10 also includes a load-bearing insert 12 and a load-bearing slide 13 arranged on one end of the load-bearing plate 11 close to the load-bearing arm 30, the load-bearing insert 12 is connected to the load-bearing plate 11, and the load-bearing slide 13 is embedded in one side of the load-bearing insert 12, and a first clamping block 121 is arranged on the side of the load-bearing insert 12 away from the load-bearing slide 13, and a second clamping block 131 is arranged on the side of the load-bearing slide 13 away from the load-bearing insert 12.

[0039] The load-bearing hinge 100 for inward opening and tilting of the present application fixes the load-bearing plate 11 on the crossbeam of the window frame, and arranges a load-bearing insert 12 and a load-bearing slide 13 at one end of the load-bearing plate 11 close to the vertical beam of the window frame. The load-bearing insert 12 and the load-bearing slide 13 are clamped on the crossbeam of the window frame. When the window sash is opened horizontally or tilted inward, the gravity transmitted by the load-bearing arm 30 is distributed on the crossbeam and the vertical beam of the window frame, which greatly improves the load-bearing capacity of the hinge. The load-bearing insert 12 and the load-bearing slide 13 are arranged close to the end where the load-bearing plate 11 and the load-bearing arm 30 are hinged, so that the torsion can be better resisted and the hinge can be prevented from being deformed. In addition, the load-bearing insert 12 and the load-bearing slide 13 are arranged close to the end where the load-bearing plate 11 and the load-bearing arm 30 are hinged. The load-bearing slide 13 is a detachable and interlocking structure, which makes it easy to install. During installation, the first block 121 of the load-bearing insert 12 is first clamped on the vertical beam of the window frame, and then the second block 131 of the load-bearing slide 13 is clamped on the vertical beam of the window frame. Then the load-bearing slide 13 is slid toward the load-bearing insert 12 until the two are interlocked. The preset groove on the vertical beam of the window frame is used to make the load-bearing insert 12 and the load-bearing slide 13 tightly fit together as a whole, so that the load-bearing plate 11 is tightly connected to the vertical beam of the window frame, which makes installation more convenient. In addition, the corresponding type of load-bearing slide 13 can be selected according to the size of the groove on the vertical beam of the window frame of different types, thereby improving the versatility of the hinge.

[0040] like Figure 4As shown, in this embodiment, a first stopper 122 is provided on the side of the load-bearing insert 12 close to the load-bearing slide 13, and a second stopper 132 is provided on the side of the load-bearing slide 13 close to the load-bearing insert 12, which is opposite to the first stopper 122. The second stopper 132 is located on the side of the first stopper 122 away from the hinged joint of the load-bearing arm 30 and the load-bearing plate 11, and the first stopper 122 and the second stopper 132 are in contact with each other. The first stopper 122 and the second stopper 132 are in contact with each other, and the first clamping block 121 and the second clamping block 131 and the window frame vertical beam clamping groove are clamped and pressed together, so that the load-bearing insert 12 and the load-bearing slide 13 can be spliced ​​into a whole, preventing the two from being easily separated, and improving the reliability of the hinge structure.

[0041] In other embodiments, a slot is provided on one side of the load-bearing insert 12 close to the load-bearing slide 13, and a plug-in block matched with the slot is provided on one side of the load-bearing slide 13 close to the load-bearing insert 12. By differentially connecting the slot and the plug-in block, the load-bearing insert 12 and the load-bearing slide 13 can be assembled into a whole, and the first clamping block 121 and the second clamping block 131 and the window frame vertical beam clamping slot can be clamped and pressed tightly, so that the load-bearing insert 12 and the load-bearing slide 13 can be prevented from being easily separated, thereby improving the structural reliability of the hinge.

[0042] Furthermore, the frame mounting seat 10 further includes a locking member 14 threadedly connected to the load-bearing slide 13, and the locking member 14 penetrates the load-bearing slide 13 along the length direction of the load-bearing plate 11. The locking member 14 is screwed in a direction away from the load-bearing plate 11, so that the first clamping block 121 and the second clamping block 131 and the window frame vertical beam clamping groove are clamped and pressed, so as to lock the position of the load-bearing slide 13 and improve the reliability of the hinge structure. In this embodiment, the locking member 14 is a headless hexagon socket screw.

[0043] Preferably, the load-bearing insert 12 is detachably connected to the load-bearing plate 11. The load-bearing inserts 12 of different sizes can be replaced according to the slot model on the vertical beam of the window frame, which has better versatility. Specifically, a mounting block 111 vertically arranged with the load-bearing plate 11 is fixedly connected to one end of the load-bearing plate 11 close to the load-bearing insert 12, and the load-bearing insert 12 and the mounting block 111 are fixed by bolts or rivets. Furthermore, in order to make the load-bearing insert 12 fit better with the load-bearing slide 13 and the mounting block 111, the load-bearing insert 12 and the load-bearing slide 13 are provided with positioning grooves matching the outer contour of the mounting block 111.

[0044] In other embodiments, the load-bearing insert 12 and the load-bearing plate 11 may also be integrally formed.

[0045] like Figure 1 and Figure 2As shown, the frame mounting seat 10 also includes a plurality of rivets 15 rotatably connected to the load-bearing plate 11, each rivet 15 is arranged at intervals on the load-bearing plate 11, and one end of each rivet 15 protruding from the load-bearing plate 11 is connected to a rotary piece 16. The rotary piece 16 is driven to rotate by rotating the rivet 15, so that the rotary piece 16 is clamped with the clamping groove on the window frame beam, so that the load-bearing plate 11 is fixed on the window frame beam, and quick disassembly and installation are realized.

[0046] Optionally, in other embodiments, the load-bearing plate 11 and the window frame crossbeam may be directly fixed by bolts.

[0047] like Figure 1 As shown, the window mounting seat 20 includes a bottom plate 21, an adjustment seat 22 and an adjustment block 23. The bottom plate 21 is hinged with one end of the load-bearing arm 30. The adjustment seat 22 is fixedly connected to one end of the bottom plate 21, and the end of the transmission arm 40 away from the load-bearing plate 11 is rotatably connected to the adjustment seat 22 through an inner pin shaft 25. The adjustment seat 22 is provided with a pin hole 221 for the inner pin shaft 25 to swing. The adjustment block 23 is arranged on the side of the adjustment seat 22 close to the bottom plate 21. The adjustment block 23 is detachably connected to the adjustment seat 22, and a top tightening member 24 is arranged on the adjustment block 23. The bottom plate 21 is clamped in the slot on the horizontal beam of the window sash, and then the adjustment block 23 is clamped in the slot on the vertical beam of the window sash, and then the top tightening member 24 is tightened to lock the adjustment block 23 on the vertical beam of the window sash, and then the adjustment block 23 is connected to the adjustment seat 22, and the window mounting seat 20 is installed on the window sash. In this embodiment, the top tightening member 24 is a headless hexagon socket screw.

[0048] Furthermore, the window mounting seat 20 also includes a horizontal adjustment screw 26 and a vertical adjustment screw 27. The head of the horizontal adjustment screw 26 is clamped with the adjustment seat 22, the rod of the horizontal adjustment screw 26 is threadedly connected with the adjustment block 23, the vertical adjustment screw 27 is threadedly connected with the end of the pin hole 221 away from the transmission arm 40, and the end of the vertical adjustment screw 27 is in contact with the top of the inner pin shaft 25. The horizontal gap between the window sash and the window frame can be adjusted by turning the horizontal adjustment screw 26, and the vertical gap between the window sash and the window frame can be adjusted by turning the vertical adjustment screw 27, which can facilitate fine-tuning the position of the window sash and the window frame to ensure the air tightness and water tightness of the door and window system. Optionally, in order to avoid rigid contact between the vertical adjustment screw 27 and the inner pin shaft 25, a buffer is provided between the vertical adjustment screw 27 and the inner pin shaft 25, and the buffer can be a plastic plug.

[0049] like Figure 1 and Figure 3As shown, the window mounting seat 20 also includes an angle adjustment screw 28, and a threaded hole 29 is provided on the adjustment block 23 and the transmission arm 40, which is threadedly matched with the angle adjustment screw 28. The angle adjustment screw 28 can adjust the opening angle of the window sash. When the angle adjustment screw 28 is set in the threaded hole 29 on the adjustment block 23, the window sash can be opened 180°. When the angle adjustment screw 28 is set in the threaded hole 29 on the transmission arm 40, the window sash can only be opened 90° due to the limitation of the angle adjustment screw 28.

[0050] like Figure 1 As shown, the end of the bearing arm 30 away from the bearing plate 11 is hinged to the first connecting arm 31, and the other end of the first connecting arm 31 is hinged to the window mounting seat 20. The end of the transmission arm 40 away from the window mounting seat 20 is hinged to the second connecting arm 41, and the other end of the second connecting arm 41 is hinged to the bearing plate 11. The first connecting arm 31 and the second connecting arm 41 can widen the range of the opening angle of the window sash.

[0051] like Figure 5 As shown, when the window sash tilts inward, the window sash will tilt at a certain angle with the tilting pin shaft 25 as a fulcrum, so that the window sash tilts inward relative to the window frame to achieve ventilation and avoid direct airflow. Therefore, in order to provide space for the tilting pin shaft 25 to swing, a trumpet-shaped expansion hole is provided on one side of the pin hole 221 close to one end of the transmission arm 40.

[0052] like Figure 6 As shown, when installing the hinge, first insert the adjustment block 23 into the slot of the window sash beam, move it upward for a distance, and then tighten the top tightening piece 24, then insert the bottom plate 21 into the slot of the window sash beam, loosen the top tightening piece 24 to lock the adjustment block 23 to move into the bottom plate 21, then tighten the top tightening piece 24 to lock the position of the adjustment block 23, then place the load-bearing plate 11 on the installation position on the window frame beam, and push the load-bearing insert 12 toward the window frame beam, so that the first block 121 of the load-bearing insert 12 is locked in The rivet 15 is then turned to drive the rotary vane 16 to rotate, so that the rotary vane 16 is clamped with the slot on the window frame beam, and the load-bearing slide 13 is placed in the slide groove on the window frame beam, and the load-bearing slide 13 is slid toward the load-bearing insert 12, so that the load-bearing slide 13 and the load-bearing insert 12 are engaged, and then the locking piece 14 is turned to lock the load-bearing slide 13, and finally the position of the window sash is fine-tuned by turning the horizontal adjustment screw 26 and the vertical adjustment screw 27 to complete the installation of the hinge.

[0053] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A load-bearing hinge (100) for inward opening and inward tilting, comprising a frame mounting seat (10) and a leaf mounting seat (20), wherein the frame mounting seat (10) and the leaf mounting seat (20) are hingedly connected via a load-bearing arm (30) and a transmission arm (40), wherein the frame mounting seat (10) comprises a load-bearing plate (11), wherein one end of the load-bearing plate (11) is hingedly connected to one end of the load-bearing arm (30), and the other end of the load-bearing plate (11) is hingedly connected to one end of the transmission arm (40), the other end of the load-bearing arm (30) is hingedly connected to the leaf mounting seat (20), the other end of the transmission arm (40) is hingedly connected to the leaf mounting seat (20), and the middle part of the transmission arm (40) is hingedly connected to the load-bearing arm (30), characterized in that: The frame mounting seat (10) further comprises a load-bearing insert (12) and a load-bearing slide (13) arranged at one end of the load-bearing plate (11) close to the load-bearing arm (30); the load-bearing insert (12) is connected to the load-bearing plate (11); the load-bearing slide (13) is embedded in one side of the load-bearing insert (12); a first clamping block (121) is arranged on the side of the load-bearing insert (12) away from the load-bearing slide (13); and a second clamping block (131) is arranged on the side of the load-bearing slide (13) away from the load-bearing insert (12).

2. The load-bearing hinge (100) for inward opening and tilting according to claim 1, characterized in that: A first stop block (122) is arranged on the side of the load-bearing insert (12) close to the load-bearing slide (13), and a second stop block (132) is arranged on the side of the load-bearing slide (13) close to the load-bearing insert (12) and is arranged opposite to the first stop block (122). The second stop block (132) is located on the side of the first stop block (122) away from the hinge between the load-bearing arm (30) and the load-bearing plate (11), and the first stop block (122) and the second stop block are in contact with each other.

3. The load-bearing hinge (100) for inward opening and tilting according to claim 1, characterized in that: A slot is provided on one side of the load-bearing insert (12) close to the load-bearing slide (13), and a plug-in block matching the slot is provided on one side of the load-bearing slide (13) close to the load-bearing insert (12).

4. The load-bearing hinge (100) for inward opening and tilting according to claim 2 or 3, characterized in that: The frame mounting seat (10) further comprises a locking member (14) threadedly connected to the load-bearing sliding member (13), wherein the locking member (14) penetrates the load-bearing sliding member (13) along the length direction of the load-bearing plate (11).

5. The load-bearing hinge (100) for inward opening and tilting according to claim 1, characterized in that: The load-bearing insert (12) is detachably connected to the load-bearing plate (11).

6. The load-bearing hinge (100) for inward opening and tilting according to claim 1, characterized in that: The frame mounting seat (10) further comprises a plurality of rivets (15) rotatably connected to the load-bearing plate (11), wherein the rivets (15) are arranged at intervals on the load-bearing plate (11), and one end of each rivet (15) protruding from the load-bearing plate (11) is connected to a rotary plate (16).

7. The load-bearing hinge (100) for inward opening and tilting according to claim 1, characterized in that: The fan mounting seat (20) comprises a base plate (21), an adjustment seat (22) and an adjustment block (23); the base plate (21) is hinged to one end of the load-bearing arm (30); the adjustment seat (22) is connected to one end of the base plate (21); and the end of the transmission arm (40) away from the load-bearing plate (11) is rotatably connected to the adjustment seat (22) via an inner inverted pin shaft (25); a pin hole (221) for the inner inverted pin shaft (25) to swing is provided on the adjustment seat (22); the adjustment block (23) is arranged on a side of the adjustment seat (22) close to the base plate (21); the adjustment block (23) is detachably connected to the adjustment seat (22); and a tightening member (24) is provided on the adjustment block (23).

8. The load-bearing hinge (100) for inward opening and tilting according to claim 7, characterized in that: The fan mounting seat (20) also includes a horizontal adjustment screw (26) and a vertical adjustment screw (27), the head of the horizontal adjustment screw (26) is clamped with the adjustment seat (22), the rod of the horizontal adjustment screw (26) is threadedly connected to the adjustment block (23), the vertical adjustment screw (27) is threadedly connected to the end of the pin hole (221) away from the transmission arm (40), and the bottom of the vertical adjustment screw (27) is abutted against the top of the inner inverted pin shaft (25).

9. The load-bearing hinge (100) for inward opening and tilting according to claim 7, characterized in that: The fan mounting seat (20) further comprises an angle adjustment screw (28), and the adjustment block (23) and the transmission arm (40) are provided with a threaded hole (29) threadably matched with the angle adjustment screw (28).

10. The load-bearing hinge (100) for inward opening and tilting according to claim 1, characterized in that: One end of the load-bearing arm (30) away from the load-bearing plate (11) is hinged to a first connecting arm (31), and the other end of the first connecting arm (31) is hinged to the fan mounting seat (20); one end of the transmission arm (40) away from the fan mounting seat (20) is hinged to a second connecting arm (41), and the other end of the second connecting arm (41) is hinged to the load-bearing plate (11).

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