CN112681915A

CN112681915A - Angle-adjustable corner hinge

Info

Publication number: CN112681915A
Application number: CN202011603120.2A
Authority: CN
Inventors: 白宝鲲
Original assignee: Guangdong Kinlong Hardware Products Co Ltd
Current assignee: Guangdong Kinlong Hardware Products Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-04-20
Anticipated expiration: 2040-12-29
Also published as: CN112681915B

Abstract

The invention relates to a corner hinge with adjustable opening angle, comprising: frame fixing base, fan fixing base, adjusting part, fan fixing base pass through adjusting part and are connected with the frame fixing base, and adjusting part is used for adjusting fan fixing base for frame fixing base turned angle. The above-mentioned scheme that this application provided adjusts the fan fixing base through adjusting part for frame fixing base turned angle, realization casement opening angle's that can be convenient regulation to customer's differentiation demand under different climatic conditions, different service environment and different use scenes has been satisfied.

Description

Angle-adjustable corner hinge

Technical Field

The invention relates to the technical field of window accessories, in particular to a corner hinge with an adjustable opening angle.

Background

Hinges and hinges are commonly used for opening flat windows, or for connecting a window frame and a window sash and realizing the rotary opening and closing of the window sash. At present, the traditional hinge usually opens the window sash at a full angle of 90 degrees or 180 degrees, and when the window sash needs to be opened at different angles, a supporting gear control is usually additionally added, and a sliding support is used for an outward opening window.

The extra cost is increased by additionally increasing the strut to control the opening angle, and the self structure of the sliding support generally has lower bearing and complex installation.

Disclosure of Invention

Therefore, the angle hinge with the adjustable opening angle is needed to be provided for solving the problems that the existing window frame and window sash connecting piece is complex to install and the opening angle of the window sash is inconvenient to adjust.

The present invention provides a corner hinge with an adjustable opening angle, comprising:

a frame fixing seat;

a fan fixing seat;

the adjusting component is used for adjusting the fan fixing seat relative to the frame fixing seat rotation angle.

Above-mentioned bight hinge with adjustable opening angle adjusts a fixing base through adjusting part and for frame fixing base turned angle, realization casement opening angle's that can be convenient regulation to customer's differentiation demand under different climatic conditions, different service environment and different use scenes has been satisfied.

In one embodiment, the adjusting assembly comprises a first swing rod, a connecting block and a second swing rod;

the connecting block is rotatably connected with a second fixing plate on the frame fixing seat, the second swinging rod is arranged on one side of the connecting block, which is far away from the second fixing plate, one end of the second swinging rod is rotatably connected with the connecting block, and the other end of the second swinging rod is rotatably connected with the fan fixing seat;

first swinging arms with the second fixed plate rotates to be connected, just first swinging arms with the connecting block all is located same one side of second fixed plate, first swinging arms is kept away from the one end of second fixed plate with fan fixing base sliding connection, the second swinging arms is located first swinging arms top, just the second swinging arms with first swinging arms rotates to be connected.

In one embodiment, the fan fixing seat comprises a transverse mounting seat, a vertical mounting seat, a hinge shaft and a limiting pin, the transverse mounting seat is vertically connected with the vertical mounting seat, the plane of the transverse mounting seat is parallel to the plane of the second fixing plate, and the vertical mounting seat is positioned above the second fixing plate;

a hinge shaft mounting hole is formed in one side, away from the transverse mounting seat, of the vertical mounting seat, and the hinge shaft penetrates through the hinge shaft mounting hole and then is connected with a tenth through hole in the second swinging rod;

and a first sliding groove is formed in the transverse mounting seat, one end of the limiting pin is positioned in the first sliding groove, and the other end of the limiting pin penetrates through the first sliding groove and then is connected with a seventh through hole in the first swinging rod.

In one embodiment, the swing rod further comprises a limiting assembly, the limiting assembly is arranged on one side, away from the first swing rod, of the transverse mounting seat, and the limiting pin sequentially penetrates through the limiting assembly and the first sliding groove and then is connected with the seventh through hole.

In one embodiment, the limiting assembly comprises a limiting sheet, and the limiting sheet is arranged on one side of the transverse mounting seat, which faces away from the first swinging rod;

the limiting piece is provided with a fifth sliding groove, the position of the fifth sliding groove corresponds to the position of the first sliding groove, the limiting pin sequentially penetrates through the fifth sliding groove and the first sliding groove and then is connected with the seventh through hole, and the limiting pin is in interference fit with the fifth sliding groove.

In one embodiment, the inner wall of the fifth sliding groove is provided with a sawtooth part, and after the limit pin extends into the fifth sliding groove, the sawtooth part is abutted against the side wall of the limit pin.

In one embodiment, the swing rod device further comprises a first chute length adjusting piece, the first chute length adjusting piece is arranged on one side, away from the first swing rod, of the transverse mounting seat, the first chute length adjusting piece can move relative to the first chute along the moving direction of the limiting pin, and the limiting piece is arranged between the first chute length adjusting piece and the transverse mounting seat.

In one embodiment, the first sliding groove length adjusting part comprises an adjusting seat, a second sliding groove, a third sliding groove and a fourth sliding groove are sequentially arranged on the adjusting seat, the second sliding groove and the third sliding groove are arranged at intervals, and the third sliding groove is communicated with the fourth sliding groove;

when the adjusting seat is arranged on one side, away from the first swing rod, of the transverse mounting seat, the second sliding groove is matched with a second riveting column on the transverse mounting seat, the fourth sliding groove is matched with a first riveting column on a lug on the transverse mounting seat, and the limiting pin sequentially penetrates through the third sliding groove, the fifth sliding groove and the first sliding groove and then is connected with the seventh through hole.

In one embodiment, the first chute length adjustment member further comprises a screw;

the adjusting seat is far away from one end of the vertical mounting seat is provided with a clamping groove, the transverse mounting seat is far away from one end of the vertical mounting seat is provided with a screw hole, and when the adjusting seat is arranged on one side, deviating from the first swinging rod, of the transverse mounting seat, the screw is clamped in the clamping groove and connected with the screw hole in a threaded mode.

In one embodiment, the connecting device further comprises a first connecting pin, a second connecting pin, a third connecting pin and a fourth connecting pin;

an eighth through hole, a ninth through hole and a protrusion are formed in the connecting block, the third connecting pin penetrates through the eighth through hole and then is connected with the second through hole in the second fixing plate, the protrusion is connected with the arc-shaped hole in the second fixing plate, the fourth connecting pin penetrates through the ninth through hole from bottom to top and then is connected with the twelfth through hole in the second swing rod, and the fourth connecting pin is abutted to the second fixing plate;

the first connecting pin penetrates through a fifth through hole in the first swinging rod and then is connected with the first through hole in the second fixing plate, and the second connecting pin penetrates through a sixth through hole in the first swinging rod from bottom to top and then is connected with an eleventh through hole in the second swinging rod.

Drawings

FIG. 1 is a schematic view of an adjustable opening angle corner hinge according to an embodiment of the present invention;

FIG. 2 is a schematic view of the connection structure of the middle frame fixing base in FIG. 1;

FIG. 3 is a schematic view of the fan fixing base shown in FIG. 1;

FIG. 4 is a schematic view of the adjusting seat shown in FIG. 3;

FIG. 5 is an exploded view of FIG. 1;

FIG. 6 is a schematic view of the bottom structure of the connecting block in FIG. 1;

FIG. 7 is a cross-sectional view of FIG. 1;

FIG. 8 is a schematic view of the adjustment block of FIG. 1 in an initial position;

fig. 9 is a schematic view of the adjustment seat of fig. 1 in an adjusted position.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1, in one embodiment of the present invention, there is provided a corner hinge with an adjustable opening angle, including: frame fixing base 10, fan fixing base 50 and adjusting part, wherein, fan fixing base 50 passes through adjusting part and is connected with frame fixing base 10, and adjusting part is used for adjusting 50 turned angle for frame fixing base 10 of fan fixing base.

By adopting the technical scheme, the adjusting assembly is used for adjusting the rotation angle of the sash fixing seat relative to the frame fixing seat, so that the opening angle of the sash can be conveniently adjusted, and the differentiation requirements of customers under different climatic conditions, different use environments and different use scenes are met.

In some embodiments, as shown in fig. 1 in conjunction with fig. 5, the adjustment assembly of the present application includes a first swing lever 20, a connecting block 30, and a second swing lever 40; the connecting block 30 is rotatably connected with the second fixing plate 102 on the frame fixing seat 10, the second swing rod 40 is arranged on one side of the connecting block 30, which is far away from the second fixing plate 102, one end of the second swing rod 40 is rotatably connected with the connecting block 30, and the other end of the second swing rod 40 is rotatably connected with the fan fixing seat 50;

the first swing rod 20 is rotatably connected to the second fixing plate 102, the first swing rod 20 and the connecting block 30 are both located on the same side of the second fixing plate 102, one end of the first swing rod 20, which is far away from the second fixing plate 102, is slidably connected to the fan fixing base 50, the second swing rod 40 is located above the first swing rod 20, and the second swing rod 40 is rotatably connected to the first swing rod 20.

When the rotation angle of the fan fixing seat 50 relative to the frame fixing seat 10 needs to be adjusted, the fan fixing seat 50 is pushed by external force, the fan fixing seat 50 drives the second swing rod 40 to rotate, the second swing rod 40 drives the connecting block 30 to rotate, because the second swing rod 40 is rotatably connected with the first swing rod 20, when the second swing rod 40 rotates, the second swing rod 40 drives the first swing rod 20 to rotate along the axial direction perpendicular to the second fixing plate 102, because one end of the first swing rod 20, which is far away from the second fixing plate 102, is slidably connected with the fan fixing seat 50, when the first swing rod 20 rotates along the axial direction perpendicular to the second fixing plate 102, the fan fixing seat 50 slides relative to the first swing rod 20, and finally, the rotation angle between the fan fixing seat 50 and the frame fixing seat 10 is adjusted.

In some embodiments, as shown in fig. 3 in combination with fig. 2 and 5, the fan fixing base 50 in the present application includes a horizontal mounting base 501, a vertical mounting base 502, a hinge shaft 401, and a limit pin 203, where the horizontal mounting base 501 and the vertical mounting base 502 are connected vertically, a plane of the horizontal mounting base 501 is parallel to a plane of the second fixing plate 102, and the vertical mounting base 502 is located above the second fixing plate 102;

a hinge shaft mounting hole 5021 is formed in one side, away from the transverse mounting seat 501, of the vertical mounting seat 502, and the hinge shaft 401 penetrates through the hinge shaft mounting hole 5021 and then is connected with a tenth through hole 402 in the second swinging rod 40; the transverse mounting seat 501 is provided with a first sliding slot 5014, one end of the limit pin 203 is located in the first sliding slot 5014, and the other end of the limit pin passes through the first sliding slot 5014 and then is connected with the seventh through hole 206 of the first swing lever 20.

When the fan fixing seat 50 is pushed by external force, the hinge shaft 401 in the hinge shaft mounting hole 5021 in the vertical mounting seat 502 on the fan fixing seat 50 drives the second swing lever 40 to rotate, the second swing lever 40 drives the connecting block 30 to rotate, because the second swing lever 40 is rotatably connected with the first swing lever 20, when the second swing lever 40 rotates, the second swing lever 40 rotates the first swing lever 20 in the axial direction perpendicular to the second fixed plate 102, since the end of the first swing lever 20 remote from the second fixed plate 102 is connected to the stopper pin 203 in the first slide slot 5014 on the lateral mount 501, when the first swing rod 20 rotates along the axial direction perpendicular to the second fixing plate 102, the limit pin 203 will synchronously drive the horizontal mounting seat 501 to rotate along the axial direction perpendicular to the second fixing plate 102, so as to adjust the rotation angle between the fan fixing seat 50 and the frame fixing seat 10.

In some embodiments, in order to fix the limit pin 203 at different positions in the first sliding slot 5014, so as to stably open the sash fixing seat 50 relative to the frame fixing seat 10, the corner hinge with adjustable opening angle in the present application further includes a limit component disposed on a side of the transverse mounting seat 501 facing away from the first swing lever 20, and the limit pin 203 sequentially passes through the limit component and the first sliding slot 5014 and then is connected to the seventh through hole 206.

Further, as shown in fig. 3, the limiting component includes a limiting sheet 505, and the limiting sheet 505 is disposed on a side of the transverse mounting seat 501 facing away from the first swinging rod 20; the limiting sheet 505 is provided with a fifth sliding chute 5051, the position of the fifth sliding chute 5051 corresponds to the position of the first sliding chute 5014, the limiting pin 203 sequentially penetrates through the fifth sliding chute 5051 and the first sliding chute 5014 and then is connected with the seventh through hole 206, and the limiting pin 203 is in interference fit with the fifth sliding chute 5051.

Specifically, the limiting plate 505 is further provided with a limiting plate mounting hole 5052, one end of the transverse mounting seat 501 close to the vertical mounting seat 502 is provided with a second riveting column 5013, the limiting plate mounting hole 5052 of the limiting plate 505 is sleeved on the second riveting column 5013, at this time, the position of the fifth chute 5051 of the limiting plate 505 corresponds to the position of the first chute 5014, the limiting pin 203 sequentially passes through the fifth chute 5051 and the first chute 5014 and then is connected with the seventh through hole 206, as shown in fig. 7 and with reference to fig. 1, as shown in fig. 2, the transverse mounting seat 501 is perpendicular to the second fixing plate 102 in the initial stage, after the fan fixing seat 50 is pushed to the preset position by external force, since the limiting pin 203 is in interference fit with the fifth chute 5051, the limiting pin 203 sequentially passes through the fifth chute 5051 and the first chute 5014 and then is connected with the seventh through hole 206, the position of the limiting pin 203 is fixed relative to the first chute 5014 and the seventh through hole 206, because the first sliding slot 5014 is disposed on the transverse mounting seat 501 and the seventh through hole 206 is disposed on the first swinging rod 20, under the cooperation of the limiting pin 203 and the fifth sliding slot 5051, the transverse mounting seat 501 is stable in position relative to the first swinging rod 20, and because the first swinging rod 20 is connected to the second fixing plate 102 on the frame fixing seat 10, the transverse mounting seat 501 is stable in position relative to the second fixing plate 102 on the frame fixing seat 10, and thus the sash fixing seat 50 can be opened stably relative to the frame fixing seat 10.

In some embodiments, as shown in fig. 3, a serrated portion 50511 is provided on an inner wall of the fifth sliding chute 5051, and when the stopper pin 203 extends into the fifth sliding chute 5051, the serrated portion 50511 abuts against a side wall of the stopper pin 203. The provision of the serrations 50511 effectively limits the free movement of the stopper pin 203 in the fifth chute 5051, thereby limiting the position of the stopper pin 203 in the first chute 5014.

In some embodiments, in order to facilitate adjustment of the opening angle of the integral hinge, the corner hinge with adjustable opening angle in the present application further includes a first sliding slot length adjusting member, which is disposed on a side of the transverse mounting seat 501 away from the first swing lever 20, and is capable of moving relative to the first sliding slot 5014 along the moving direction of the stopper pin 203, and the stopper piece 505 is disposed between the first sliding slot length adjusting member and the transverse mounting seat 501.

Further, as shown in fig. 3, the first sliding slot length adjusting member includes an adjusting seat 503, the adjusting seat 503 is sequentially provided with a second sliding slot 5031, a third sliding slot 5032 and a fourth sliding slot 5033, the second sliding slot 5031 and the third sliding slot 5032 are arranged at intervals, and the third sliding slot 5032 is communicated with the fourth sliding slot 5033; when the adjusting seat 503 is disposed on a side of the transverse mounting seat 501 away from the first swing rod 20, the second sliding slot 5031 is engaged with the second riveting post 5013 on the transverse mounting seat 501, the fourth sliding slot 5033 is engaged with the first riveting post 50121 on the protrusion 5012 on the transverse mounting seat 501, and the limit pin 203 sequentially passes through the third sliding slot 5032, the fifth sliding slot 5051, and the first sliding slot 5014 and then is connected to the seventh through hole 206.

Specifically, as shown in fig. 3 and with reference to fig. 4, two baffles 5011 are disposed in parallel at an interval at an end of the transverse mounting seat 501 close to the vertical mounting seat 502 in the present application, a placement slot 50111 is formed between the two baffles 5011, when the adjustment seat 503 is disposed on a side of the transverse mounting seat 501 away from the first swing rod 20, at this time, the second sliding slot 5031 is partially located in the placement slot 50111, the second riveting column 5013 is located in the second sliding slot 5031, the positions of the third sliding slot 5032, the fifth sliding slot 5051 and the first sliding slot 5014 correspond, the clamping slot 5034 on the adjustment seat 503 is buckled on the protrusion 5012, and the first riveting column 50121 on the protrusion 5012 is located in the fourth sliding slot 5033.

As shown in fig. 8, when the end of the adjusting seat 503 facing the vertical mounting seat 502 abuts against the vertical mounting seat 502, at this time, the horizontal mounting seat 501 can rotate between 0 ° and 90 ° relative to the second fixing plate 102, as shown in fig. 9, when the end of the adjusting seat 503 facing the vertical mounting seat 502 is five centimeters away from the vertical mounting seat 502, at this time, a portion of the third sliding slot 5032 is misaligned with the fifth sliding slot 5051 and the first sliding slot 5014, since the limit pin 203 sequentially passes through the third sliding slot 5032, the fifth sliding slot 5051 and the first sliding slot 5014 and then is connected with the seventh through hole 206, at this time, the third sliding slot 5032 acts as a limit for the limit pin 203, and when the end of the adjusting seat 503 facing the vertical mounting seat 502 is five centimeters away from the vertical mounting seat 502, assuming that the adjusting seat 503 and the second fixing plate 102 are 50 °, since the limit pin 203 abuts against the end of the third sliding slot 5032 facing the vertical mounting seat 502 when the horizontal mounting seat 501 rotates counterclockwise, at this time, the adjusting base 503 cannot be driven to rotate along with the transverse mounting base 501 along the counterclockwise direction, and only the adjusting base 503 can be driven to rotate along with the transverse mounting base 501 along the clockwise direction toward the second fixing plate 102, that is, the transverse mounting base 501 can rotate between 0 ° and 50 ° relative to the second fixing plate 102.

In some embodiments, as shown in fig. 3 in combination with fig. 4 and 7, the first chute length adjustment member of the present application further comprises a screw 504; a clamping groove 5036 is arranged at one end of the adjusting seat 503 away from the vertical mounting seat 502, a screw hole (not shown) is arranged at one end of the horizontal mounting seat 501 away from the vertical mounting seat 502, and when the adjusting seat 503 is arranged at one side of the horizontal mounting seat 501 away from the first swinging rod 20, the screw 504 is clamped in the clamping groove 5036 and then is in threaded connection with the screw hole. When the distance between the adjusting seat 503 and the lateral mounting seat 501 needs to be adjusted, a tool is inserted through the through hole 5035 and then the screw 504 is rotated.

In some embodiments, as shown in fig. 5 in combination with fig. 2 and 6, the corner hinge with adjustable opening angle of the present application further includes a first connecting pin 201, a second connecting pin 202, a third connecting pin 301, a fourth connecting pin 302, and a backing plate 103, wherein the backing plate 103 is provided with a third through hole 1031 and a fourth through hole 1032, the connecting block 30 is provided with an eighth through hole 303, a ninth through hole 304, and a protrusion 305,

the third connecting pin 301 sequentially passes through the eighth through hole 303 and the fourth through hole 1032 and then is connected with the second through hole 1022 on the second fixing plate 102, the protrusion 305 is connected with the arc-shaped hole 1023 on the second fixing plate 102, the fourth connecting pin 302 passes through the ninth through hole 304 from bottom to top and then is connected with the twelfth through hole 404 on the second swing lever 40, and the fourth connecting pin 302 abuts against the backing plate 103;

the first connecting pin 201 passes through the fifth through hole 204 of the first swing lever 20 and the third through hole 1031 of the spacer 103 in sequence and is connected to the first through hole 1021 of the second fixing plate 102, and the second connecting pin 202 passes through the sixth through hole 205 of the first swing lever 20 from bottom to top and is connected to the eleventh through hole 403 of the second swing lever 40.

In summary, the invention of the present application, when in use:

firstly, the corner hinge with adjustable opening angle in the present invention is assembled, then the first fixing plate 101 on the frame fixing seat 10 is fixed to the frame body, as shown in fig. 5 and combined with fig. 3, the first fixing plate 101 is vertically connected to the second fixing plate 102, at the same time, the vertical mounting seat on the fan fixing seat 50 is fixed to the fan body through the fan fixing seat mounting hole 5022 via the bolt, at this time, pushing the fan body, the fan body will drive the fan fixing seat 50 to move, the hinge shaft 401 in the hinge shaft mounting hole 5021 on the vertical mounting seat 502 on the fan fixing seat 50 will drive the second swing lever 40 to rotate, the second swing lever 40 will drive the connecting block 30 to rotate, because the second swing lever 40 is rotationally connected to the first swing lever 20, when the second swing lever 40 rotates, the second swing lever 40 will drive the first swing lever 20 to rotate along the axial direction perpendicular to the second fixing plate 102, because the end of the first swing lever 20 away from the second fixing plate 102 is connected to the limit pin 203 in the first sliding slot 5014 of the transverse mounting seat 501, when the first swing lever 20 rotates along the axial direction perpendicular to the second fixing plate 102, the limit pin 203 will synchronously drive the transverse mounting seat 501 to rotate along the axial direction perpendicular to the second fixing plate 102, thereby realizing the adjustment of the rotation angle between the fan fixing seat 50 and the frame fixing seat 10.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An adjustable opening angle corner hinge, comprising:

a frame fixing seat (10);

a fan fixing seat (50);

the adjusting component, fan fixing base (50) pass through the adjusting component with frame fixing base (10) are connected, the adjusting component is used for adjusting fan fixing base (50) for frame fixing base (10) turned angle.

2. The adjustable opening angle corner hinge according to claim 1, wherein the adjusting assembly comprises a first swing lever (20), a connecting block (30), and a second swing lever (40);

the connecting block (30) is rotatably connected with a second fixing plate (102) on the frame fixing seat (10), the second swinging rod (40) is arranged on one side, away from the second fixing plate (102), of the connecting block (30), one end of the second swinging rod (40) is rotatably connected with the connecting block (30), and the other end of the second swinging rod (40) is rotatably connected with the fan fixing seat (50);

the first swing rod (20) is rotatably connected with the second fixing plate (102), the first swing rod (20) and the connecting block (30) are located on the same side of the second fixing plate (102), one end, far away from the second fixing plate (102), of the first swing rod (20) is slidably connected with the fan fixing seat (50), the second swing rod (40) is located above the first swing rod (20), and the second swing rod (40) is rotatably connected with the first swing rod (20).

3. The corner hinge with adjustable opening angle of claim 2, characterized in that the sash holder (50) comprises a horizontal mounting seat (501), a vertical mounting seat (502), a hinge shaft (401) and a limit pin (203), wherein the horizontal mounting seat (501) is vertically connected with the vertical mounting seat (502), the plane of the horizontal mounting seat (501) is parallel to the plane of the second fixing plate (102), and the vertical mounting seat (502) is located above the second fixing plate (102);

a hinge shaft mounting hole (5021) is formed in one side, away from the transverse mounting seat (501), of the vertical mounting seat (502), and the hinge shaft (401) penetrates through the hinge shaft mounting hole (5021) and then is connected with a tenth through hole (402) in the second swinging rod (40);

the transverse mounting seat (501) is provided with a first sliding groove (5014), one end of the limiting pin (203) is located in the first sliding groove (5014), and the other end of the limiting pin penetrates through the first sliding groove (5014) and then is connected with a seventh through hole (206) in the first swinging rod (20).

4. The corner hinge with adjustable opening angle of claim 3, characterized in that it further comprises a limiting component, said limiting component is disposed on a side of said transverse mounting seat (501) facing away from said first swinging rod (20), and said limiting pin (203) is connected with said seventh through hole (206) after passing through said limiting component and said first sliding slot (5014) in sequence.

5. Corner hinge with adjustable opening angle according to claim 4, characterized in that the stop assembly comprises a stop tab (505), the stop tab (505) being arranged on the side of the transverse mounting seat (501) facing away from the first swinging lever (20);

the limiting piece (505) is provided with a fifth sliding groove (5051), the position of the fifth sliding groove (5051) corresponds to the position of the first sliding groove (5014), the limiting pin (203) sequentially penetrates through the fifth sliding groove (5051) and the first sliding groove (5014) and then is connected with the seventh through hole (206), and the limiting pin (203) is in interference fit with the fifth sliding groove (5051).

6. The adjustable-opening-angle corner hinge according to claim 5, wherein a serration (50511) is provided on an inner wall of the fifth chute (5051), and when the stopper pin (203) is extended into the fifth chute (5051), the serration (50511) abuts against a side wall of the stopper pin (203).

7. The corner hinge with adjustable opening angle according to claim 5, further comprising a first chute length adjustment member provided on a side of the lateral mount (501) facing away from the first swing lever (20), the first chute length adjustment member being movable relative to the first chute (5014) in the moving direction of the stopper pin (203), the stopper piece (505) being provided between the first chute length adjustment member and the lateral mount (501).

8. The corner hinge with adjustable opening angle according to claim 7, wherein the first sliding slot length adjusting member comprises an adjusting seat (503), a second sliding slot (5031), a third sliding slot (5032) and a fourth sliding slot (5033) are sequentially arranged on the adjusting seat (503), the second sliding slot (5031) and the third sliding slot (5032) are arranged at intervals, and the third sliding slot (5032) is communicated with the fourth sliding slot (5033);

when the adjusting seat (503) is arranged on one side of the transverse mounting seat (501) departing from the first swinging rod (20), the second sliding groove (5031) is matched with a second riveting column (5013) on the transverse mounting seat (501), the fourth sliding groove (5033) is matched with a first riveting column (50121) on a convex block (5012) on the transverse mounting seat (501), and the limiting pin (203) sequentially penetrates through the third sliding groove (5032), the fifth sliding groove (5051) and the first sliding groove (5014) and then is connected with the seventh through hole (206).

9. The adjustable opening angle corner hinge of claim 8, wherein the first chute length adjustment further comprises a screw (504);

a clamping groove (5036) is formed in one end, far away from the vertical mounting seat (502), of the adjusting seat (503), a screw hole is formed in one end, far away from the vertical mounting seat (502), of the transverse mounting seat (501), and when the adjusting seat (503) is arranged on one side, far away from the first swinging rod (20), of the transverse mounting seat (501), the screw (504) is clamped in the clamping groove (5036) and is in threaded connection with the screw hole.

10. The corner hinge with adjustable opening angle according to any one of claims 2 to 9, further comprising a first connecting pin (201), a second connecting pin (202), a third connecting pin (301), and a fourth connecting pin (302);

an eighth through hole (303), a ninth through hole (304) and a protrusion (305) are arranged on the connecting block (30), the third connecting pin (301) passes through the eighth through hole (303) and then is connected with a second through hole (1022) on the second fixing plate (102), the protrusion (305) is connected with an arc-shaped hole (1023) on the second fixing plate (102), the fourth connecting pin (302) passes through the ninth through hole (304) from bottom to top and then is connected with a twelfth through hole (404) on the second swing rod (40), and the fourth connecting pin (302) abuts against the second fixing plate (102);

the first connecting pin (201) penetrates through a fifth through hole (204) in the first swinging rod (20) and then is connected with a first through hole (1021) in the second fixing plate (102), and the second connecting pin (202) penetrates through a sixth through hole (205) in the first swinging rod (20) from bottom to top and then is connected with an eleventh through hole (403) in the second swinging rod (40).