General-purpose invisible hinge for door and window capable of being opened by 180 degrees

Abstract

This utility model discloses a universal concealed hinge for doors and windows that can open 180°, including a frame mounting part and a sash mounting part. The frame mounting part includes a main load-bearing arm, with a vertically arranged first connecting shaft and a second connecting shaft fixed on the left and right sides of the main load-bearing arm, respectively. A frame mounting unit is respectively provided on the upper and lower sides of the main load-bearing arm. Each frame mounting unit includes a frame mounting seat, a frame fixing seat, and a control arm. The upper and lower ends of the first connecting shaft are rotatably connected to a frame fixing seat, and the middle parts of the upper and lower ends of the main load-bearing arm are respectively rotatably connected to a control arm. The sash mounting part includes a base, with a sash mounting unit respectively provided on the upper and lower sides of the base. Each sash mounting unit includes a sash mounting seat and a control seat, and the upper and lower ends of the second connecting shaft are rotatably connected to a control seat. This hinge can achieve a 0° to 180° opening for doors and windows, and is widely used in doors and windows in various occasions, ensuring the sealing performance and usability of doors and windows.

Description

Technical Field

[0001] This utility model belongs to the field of door and window hardware accessories, specifically relating to a universal invisible hinge for doors and windows that can be opened 180°. Background Technology

[0002] Winter temperatures are low in northern my country, and most door and window hinges in the region are exposed. Installing hinges requires cutting the door and window weatherstripping at the installation location, affecting the airtightness of the doors and windows, leading to air leaks. In low temperatures, they are also prone to freezing, affecting the normal opening and closing of doors and windows. Some hinges also have a maximum opening angle of less than 180°, limiting their usability. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a universal invisible hinge for doors and windows that can be opened 180°, which can be widely used in doors and windows in various occasions to ensure the sealing performance and use effect of doors and windows.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a universal invisible hinge for doors and windows that can be opened 180°, characterized in that it includes a frame mounting part and a sash mounting part. The frame mounting part includes a main load-bearing arm. A first connecting shaft and a second connecting shaft are fixed vertically on the left and right sides of the main load-bearing arm, respectively. A frame mounting unit is provided on the upper and lower sides of the main load-bearing arm. Each frame mounting unit includes a frame mounting seat, a frame fixing seat, and a control arm. The frame mounting seat is used to connect to the front of the vertical part of the door and window frame profile. The vertical part of the door and window frame profile has a frame mounting hole. The frame fixing seat is fixed to the frame mounting seat. The upper and lower ends of the first connecting shaft are rotatably connected to one of the frame fixing seats, respectively. The middle parts of the upper and lower ends of the main load-bearing arm are respectively connected to... One of the control arms is rotatably connected. The sash mounting part includes a base. A sash mounting unit is respectively provided on the upper and lower sides of the base. Each sash mounting unit includes a sash mounting seat and a control seat. The sash mounting seat is used to connect to the front of the vertical part of the door and window sash profile. A sash mounting hole is opened on the vertical part of the door and window sash profile. A sash mounting seat and a control seat are fixed at the upper and lower ends of the base. The upper and lower ends of the second connecting shaft are rotatably connected to a control seat. After the universal door and window invisible hinge is installed, the frame mounting part is installed in the frame mounting hole, and the sash mounting part is installed in the sash mounting hole. During the opening and closing of the door and window, the left and right movements of each control arm are guided by a frame fixing seat and a control seat.

[0005] This utility model of a universal invisible hinge for doors and windows features two connecting shafts: a first connecting shaft for the frame mounting portion and a second connecting shaft for the sash mounting portion. The first and second connecting shafts are fixed to the left and right sides of the main load-bearing arm, respectively. After installation, the first connecting shaft rests on the door / window frame, and the second connecting shaft rests on the door / window sash, allowing the door / window to open from 0° to 180°. Simultaneously, a control arm is installed at the upper and lower ends of the main load-bearing arm. The left and right movement of each control arm is guided by a frame fixing seat and a control seat, respectively. The control arms control the opening angle of the door / window, ensuring the regularity and reliability of the opening action. Furthermore, this universal invisible hinge for doors and windows can be widely applied to doors and windows in various applications. After installation, the frame mounting portion and the sash mounting portion are concealed within the frame mounting holes and sash mounting holes, respectively. Moreover, the installation of this universal invisible hinge for doors and windows does not require cutting the door / window sealing strips at the installation location, ensuring the sealing performance and usability of the doors and windows.

[0006] Preferably, each of the frame fixing seats has an arc surface on its outer side, the center line of which coincides with the center line of the first connecting shaft. Each control seat has a first arc groove, the center line of which coincides with the center line of the second connecting shaft. During the opening and closing of doors and windows, the movement of the left and right sides of each control arm is guided by one of the arc surfaces and one of the first arc grooves. The design of the arc surface on the outer side of the frame fixing seat and the design of the first arc groove on the control seat ensure that during the opening and closing of doors and windows, under the guidance of the arc surface and the first arc groove, the left and right sides of the control arm rotate around the center lines of the first and second connecting shafts respectively, making the opening and closing of doors and windows smooth, stable, and reliable.

[0007] Preferably, each frame fixing seat has a second arc groove, the center line of which coincides with the center line of the first connecting shaft. A vertically arranged guide shaft is fixed to the upper and lower ends of the main load-bearing arm, and each guide shaft is slidably connected to one of the second arc grooves. Based on the design of the arc surface and the first arc groove, the guide shafts, in conjunction with the second arc groove, further guide the rotation of the door and window sashes and the main load-bearing arm, ensuring safety and reliability.

[0008] Preferably, a first bushing is fixed on each of the frame fixing seats, and the upper and lower ends of the first connecting shaft are rotatably connected to a frame fixing seat through a first bushing, respectively. A second bushing is fixed on each of the control seats, and the upper and lower ends of the second connecting shaft are rotatably connected to a control seat through a second bushing, respectively. A third bushing is fixed on each of the control arms, and a pin is vertically inserted inside each of the third bushings. The middle parts of the upper and lower ends of the main load-bearing arm are rotatably connected to a control arm through a pin, respectively.

[0009] Preferably, the first connecting shaft and the second connecting shaft are fixed to the left and right sides of the main load-bearing arm respectively by horizontally installed set screws.

[0010] Preferably, each of the sash mounting bases has a waist-shaped hole with its major axis vertically aligned. A first adjusting screw passes through the waist-shaped hole and the base. Rotating the first adjusting screw adjusts the left and right overlap of the door / window sash, improving the left and right installation accuracy of the door / window sash.

[0011] Preferably, a second adjusting screw is vertically inserted between each of the control seats and the base, and the second adjusting screw is tightened against one of the sash mounting seats. Rotating the second adjusting screw can adjust the tightness of the second adjusting screw against the sash mounting seat, thereby adjusting the vertical overlap of the door and window sash and improving the vertical installation accuracy of the door and window sash.

[0012] Preferably, each frame mounting base is equipped with a first connecting screw for threaded connection to a first rivet nut, which is mounted on a first washer. The first washer is used to press against the back of the vertical part of the door / window frame profile. Each sash mounting base is equipped with a second connecting screw for threaded connection to a second rivet nut, which is mounted on a second washer. The second washer is used to press against the back of the vertical part of the door / window sash profile. A fixing plate is provided on the back of the base, and the upper and lower ends of the fixing plate are respectively fixedly connected to one of the sash mounting bases. After the universal invisible hinge for doors and windows is installed, the first rivet nut passes through the first washer and the vertical part of the door / window frame profile and is threadedly connected to the first connecting screw. The second rivet nut passes through the second washer and the vertical part of the door / window sash profile and is threadedly connected to the second connecting screw. Thus, the frame mounting part is fixed to the door / window frame profile and the sash mounting part is fixed to the door / window sash profile by clamping from the front and back, making installation convenient and secure.

[0013] Preferably, each frame mounting base is integrally provided with a frame mounting piece, the first connecting screw passes through the frame mounting piece, and a first positioning part is integrally provided on the back of the frame mounting piece. The width of the first positioning part is adapted to the width of the C-groove on the vertical part of the door / window frame profile. Each sash mounting base is integrally provided with a sash mounting piece, the second connecting screw passes through the sash mounting piece, and a second positioning part is integrally provided on the back of the sash mounting piece. The width of the second positioning part is adapted to the width of the C-groove on the vertical part of the door / window sash profile. After the universal invisible hinge for doors and windows is installed, the first positioning part is inserted into the C-groove on the vertical part of the door / window frame profile, and the second positioning part is inserted into the C-groove on the vertical part of the door / window sash profile. During installation, the first and second positioning parts play a pre-positioning role, which helps to improve the convenience of hinge installation.

[0014] Compared with existing technologies, this utility model has the following advantages: This utility model's universal concealed hinge for doors and windows, capable of opening 180°, achieves opening from 0° to 180° via two connecting shafts (first and second). Two control arms control the opening angle, ensuring the regularity and reliability of the opening action. This universal concealed hinge for doors and windows can be widely used in various applications. After installation, the frame mounting portion and the sash mounting portion are concealed within the frame mounting holes and sash mounting holes, respectively. Furthermore, the installation of this universal concealed hinge does not require cutting the door and window sealing strips, ensuring the sealing performance and effectiveness of the doors and windows. Attached Figure Description

[0015] Figure 1 This is a front view of the general-purpose invisible hinge for doors and windows in the embodiment;

[0016] Figure 2 This is a rear view of the general-purpose invisible hinge for doors and windows in the embodiment;

[0017] Figure 3 This is an exploded view of the structure of the general-purpose concealed hinge for doors and windows in the embodiment;

[0018] Figure 4 This is an external view of the frame mounting holes on the vertical part of the door and window frame profile in the embodiment;

[0019] Figure 5 This is an external view of the mounting holes on the vertical part of the door / window sash profile in the embodiment;

[0020] Figure 6 This is a diagram showing the doors and windows in a 180° open state after the installation of the universal invisible hinges in the example.

[0021] Figure 7 This is a diagram showing the doors and windows in a 90° open state after the installation of the universal invisible hinges in the example.

[0022] The specific reference numerals in the figure are as follows:

[0023] 1-Main load-bearing arm, 11-First connecting shaft, 12-Second connecting shaft, 13-Set screw, 14-Guide shaft, 2-Frame mounting base, 21-First positioning part, 22-First connecting screw, 23-First rivet nut, 24-First washer, 25-Frame mounting piece, 3-Frame fixing base, 31-Arc surface, 32-First bushing, 33-Second arc groove, 4-Control arm, 41-Third bushing, 42-Pin, 5-Base, 51-Fixing piece, 6-Fan mounting base, 61-Oval hole 62-First adjusting screw, 63-Second adjusting screw, 64-Second connecting screw, 65-Second rivet nut, 66-Second washer, 67-Sash mounting plate, 68-Second positioning part, 7-Control seat, 71-First arc groove, 72-Second bushing, 8-Vertical part of door and window frame profile, 81-C groove on vertical part 8 of door and window frame profile, 82-Frame mounting hole, 9-Vertical part of door and window sash profile, 91-C groove on vertical part 9 of door and window sash profile, 92-Sash mounting hole. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Components or structures not limited in this invention employ conventional techniques in the art.

[0025] The embodiment features a universal concealed hinge for doors and windows that can open 180°, such as... Figures 1-3 As shown, the system includes a frame mounting section and a sash mounting section. The frame mounting section includes a main load-bearing arm 1. A vertically arranged first connecting shaft 11 and a second connecting shaft 12 are fixed to the left and right sides of the main load-bearing arm 1, respectively. The first connecting shaft 11 and the second connecting shaft 12 are fixed to the left and right sides of the main load-bearing arm 1 by horizontally installed set screws 13. A frame mounting unit is provided on the upper and lower sides of the main load-bearing arm 1, and each frame mounting unit includes a frame mounting seat 2, a frame fixing seat 3, and a control arm 4. The frame mounting seat 2 is used to connect the front of the vertical part 8 of the door and window frame profile, as shown in the figure. Figure 4 As shown, the vertical part 8 of the door and window frame profile has frame mounting holes 82. The frame fixing seat 3 is fixed to the frame mounting seat 2. The upper and lower ends of the first connecting shaft 11 are rotatably connected to a frame fixing seat 3 respectively. The middle parts of the upper and lower ends of the main load-bearing arm 1 are rotatably connected to a control arm 4 respectively. The sash mounting part includes a base 5. A sash mounting unit is provided on the upper and lower sides of the base 5 respectively. Each sash mounting unit includes a sash mounting seat 6 and a control seat 7. The sash mounting seat 6 is used to connect the front of the vertical part 9 of the door and window sash profile, such as... Figure 5 As shown, a sash mounting hole 92 is provided on the vertical part 9 of the door and window sash profile. A sash mounting seat 6 and a control seat 7 are fixed at the upper and lower ends of the base 5, respectively. The upper and lower ends of the second connecting shaft 12 are rotatably connected to a control seat 7.

[0026] In this embodiment, each frame fixing seat 3 has an arc surface 31 on its outer side, the center line of the arc surface 31 coincides with the center line of the first connecting shaft 11, each control seat 7 has a first arc groove 71, the center line of the first arc groove 71 coincides with the center line of the second connecting shaft 12; each frame fixing seat 3 has a second arc groove 33, the center line of the second arc groove 33 coincides with the center line of the first connecting shaft 11, and a vertically arranged guide shaft 14 is fixed at the upper end and the lower end of the main load-bearing arm 1, and each guide shaft 14 is slidably connected to a second arc groove 33.

[0027] In this embodiment, a first bushing 32 is fixed on each frame fixing seat 3. The upper and lower ends of the first connecting shaft 11 are rotatably connected to a frame fixing seat 3 through a first bushing 32. A second bushing 72 is fixed on each control seat 7. The upper and lower ends of the second connecting shaft 12 are rotatably connected to a control seat 7 through a second bushing 72. A third bushing 41 is fixed on each control arm 4. A pin 42 is vertically inserted in each third bushing 41. The middle parts of the upper and lower ends of the main load-bearing arm 1 are rotatably connected to a control arm 4 through a pin 42.

[0028] In this embodiment, each fan mounting base 6 has a waist-shaped hole 61 with its long axis vertically arranged. A first adjusting screw 62 passes through the waist-shaped hole 61 and the base 5. A second adjusting screw 63 passes vertically between each control seat 7 and the base 5. The second adjusting screw 63 presses against one fan mounting base 6.

[0029] In this embodiment, each frame mounting base 2 is equipped with a first connecting screw 22, which is used to thread a first rivet nut 23. The first rivet nut 23 is mounted on a first washer 24, which is used to press the back of the vertical part 8 of the door and window frame profile. Each sash mounting base 6 is equipped with a second connecting screw 64, which is used to thread a second rivet nut 65. The second rivet nut 65 is mounted on a second washer 66, which is used to press the back of the vertical part 9 of the door and window sash profile. A fixing plate 51 is provided on the back of the base 5. The upper end and lower end of the fixing plate 51 are respectively... Each sash mounting base 2 is integrally connected to a sash mounting base 6. Specifically, each frame mounting base 2 is integrally provided with a frame mounting piece 25. A first connecting screw 22 passes through the frame mounting piece 25. A first positioning part 21 is integrally provided on the back of the frame mounting piece 25. The width of the first positioning part 21 is adapted to the width of the C-groove 81 on the vertical part 8 of the door and window frame profile. Each sash mounting base 6 is integrally provided with a sash mounting piece 67. A second connecting screw 64 passes through the sash mounting piece 67. A second positioning part 68 is integrally provided on the back of the sash mounting piece 67. The width of the second positioning part 68 is adapted to the width of the C-groove 91 on the vertical part 9 of the door and window sash profile.

[0030] After installation, the frame mounting portion and sash mounting portion of the aforementioned universal invisible door and window hinge are concealed in the frame mounting holes 82 and sash mounting holes 92, respectively. The first positioning part 21 is inserted into the C-groove 81 on the vertical part 8 of the door and window frame profile, and the second positioning part 68 is inserted into the C-groove 91 on the vertical part 9 of the door and window sash profile. The first rivet nut 23 passes through the first washer 24, the vertical part 8 of the door and window frame profile, and is threadedly connected to the first connecting screw 22. The second rivet nut 65 passes through the second washer 66, the vertical part 9 of the door and window sash profile, and is threadedly connected to the second connecting screw 64. Thus, the frame mounting portion is fixed to the door and window frame profile, and the sash mounting portion is fixed to the door and window sash profile by clamping from the front and back. The installation of the aforementioned universal invisible door and window hinge does not require cutting the door and window sealing strips at the installation location, ensuring the sealing performance and effectiveness of the doors and windows, and can be widely used in doors and windows in various occasions.

[0031] After the above-mentioned universal concealed hinges for doors and windows are installed, see the diagram showing the doors and windows in a 180° open state. Figure 6 See the diagram showing the doors and windows open at 90°. Figure 7 This universal concealed hinge for doors and windows enables opening of doors and windows from 0° to 180° via two connecting shafts, a first connecting shaft 11 and a second connecting shaft 12. Two control arms 4 control the opening angle, ensuring the regularity and reliability of the opening action. During the opening and closing process, the left and right sides of each control arm 4 rotate around the center lines of the first connecting shaft 11 and the second connecting shaft 12, respectively. The movement of each control arm 4's left and right sides is guided by an arc surface 31 and a first arc groove 71. Simultaneously, each guide shaft 14 slides along a second arc groove 33 around the center line of the first connecting shaft 11, ensuring smooth, stable, and reliable opening and closing of the doors and windows.

Claims

1. A universal concealed hinge for doors and windows that can open 180°, characterized in that, The device includes a frame mounting section and a sash mounting section. The frame mounting section includes a main load-bearing arm. A first connecting shaft and a second connecting shaft are fixed vertically on the left and right sides of the main load-bearing arm. A frame mounting unit is respectively provided on the upper and lower sides of the main load-bearing arm. Each frame mounting unit includes a frame mounting seat, a frame fixing seat, and a control arm. The frame mounting seat is used to connect to the front of the vertical part of the door / window frame profile. Frame mounting holes are opened on the vertical part of the door / window frame profile. The frame fixing seat is fixed to the frame mounting seat. The upper and lower ends of the first connecting shaft are rotatably connected to one of the frame fixing seats. The middle parts of the upper and lower ends of the main load-bearing arm are rotatably connected to one of the control arms. The sash mounting section includes a base. A sash mounting unit is provided on the upper and lower sides of the base, and each sash mounting unit includes a sash mounting seat and a control seat. The sash mounting seat is used to connect to the front of the vertical part of the door and window sash profile. A sash mounting hole is opened on the vertical part of the door and window sash profile. A sash mounting seat and a control seat are fixed at the upper and lower ends of the base, respectively. The upper and lower ends of the second connecting shaft are rotatably connected to a control seat. After the universal door and window invisible hinge is installed, the frame mounting part is installed in the frame mounting hole, and the sash mounting part is installed in the sash mounting hole. During the opening and closing of the door and window, the left and right movements of each control arm are guided by a frame fixing seat and a control seat, respectively.

2. The universal concealed hinge for doors and windows that can be opened 180° according to claim 1, characterized in that, Each of the frame fixing seats has an arc surface on its outer side, and the center line of the arc surface coincides with the center line of the first connecting shaft. Each of the control seats has a first arc groove, and the center line of the first arc groove coincides with the center line of the second connecting shaft. During the opening and closing of the doors and windows, the left and right movements of each control arm are guided by one of the arc surfaces and one of the first arc grooves.

3. The universal concealed hinge for doors and windows that can be opened 180° according to claim 2, characterized in that, Each of the frame fixing seats is provided with a second arc groove, the center line of the second arc groove coincides with the center line of the first connecting shaft, and a vertically arranged guide shaft is fixed at the upper end and the lower end of the main load-bearing arm, and each guide shaft is slidably connected to one of the second arc grooves.

4. The universal concealed hinge for doors and windows that can be opened 180° according to claim 1, characterized in that, Each frame fixing seat is fixed with a first bushing. The upper and lower ends of the first connecting shaft are rotatably connected to a frame fixing seat through a first bushing, respectively. Each control seat is fixed with a second bushing. The upper and lower ends of the second connecting shaft are rotatably connected to a control seat through a second bushing, respectively. Each control arm is fixed with a third bushing. A pin is vertically inserted in each third bushing. The middle parts of the upper and lower ends of the main load-bearing arm are rotatably connected to a control arm through a pin, respectively.

5. The universal concealed hinge for doors and windows that can be opened 180° according to claim 1, characterized in that, The first connecting shaft and the second connecting shaft are respectively fixed to the left and right sides of the main load-bearing arm by horizontally installed set screws.

6. The universal concealed hinge for doors and windows that can be opened 180° according to claim 1, characterized in that, Each of the fan mounting bases has a waist-shaped hole with its long axis set vertically, and a first adjusting screw passes through the waist-shaped hole and the base.

7. The universal invisible hinge for doors and windows that can be opened 180° according to claim 1, characterized in that, A second adjusting screw passes vertically between each of the control seats and the base, and the second adjusting screw abuts against one of the fan mounting seats.

8. The universal concealed hinge for doors and windows that can be opened 180° according to claim 1, characterized in that, Each frame mounting base is equipped with a first connecting screw for threaded connection to a first rivet nut, which is mounted on a first washer for pressing the back of the vertical part of the door / window frame profile. Each sash mounting base is equipped with a second connecting screw for threaded connection to a second rivet nut, which is mounted on a second washer for pressing the back of the vertical part of the door / window sash profile. A fixing plate is provided on the back of the base, and the upper and lower ends of the fixing plate are respectively fixedly connected to one of the sash mounting bases.

9. The universal concealed hinge for doors and windows that can be opened 180° according to claim 8, characterized in that, Each frame mounting base is integrally provided with a frame mounting piece, and the first connecting screw passes through the frame mounting piece. The back of the frame mounting piece is integrally provided with a first positioning part, the width of which is adapted to the width of the C-groove on the vertical part of the door and window frame profile. Each sash mounting base is integrally provided with a sash mounting piece, and the second connecting screw passes through the sash mounting piece. The back of the sash mounting piece is integrally provided with a second positioning part, the width of which is adapted to the width of the C-groove on the vertical part of the door and window sash profile. After the universal door and window invisible hinge is installed, the first positioning part is inserted into the C-groove on the vertical part of the door and window frame profile, and the second positioning part is inserted into the C-groove on the vertical part of the door and window sash profile.

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