Quickly-assembled power-assisted hinge

The quick-install assist hinge solves the installation problem of super-large doors and windows through three connecting shafts and positioning part fixing structure, achieving arbitrary opening angles and good sealing. It is suitable for existing invisible hinges to maintain the integrity and aesthetics of doors and windows.

CN223135898UActive Publication Date: 2025-07-22邢宪鹏
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Patent Information

Application Number
CN202421866669.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-07-22
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

The existing invisible hinges are difficult to meet the installation requirements of ultra-large doors and windows, especially in terms of load-bearing and sealing in the middle, and traditional installation methods will damage the aesthetics of the profile and affect the performance of doors and windows.

Method used

The quick-install assist hinge is adopted, and the frame mounting seat, fan mounting seat and main connecting seat are connected through three connecting shafts. The positioning part is embedded in the C-shaped groove and fixed by the locking plate to achieve any opening angle of 0° to 360° and any opening and closing track, and the door and window profiles are not damaged during installation.

Benefits of technology

It realizes flexible installation of ultra-large doors and windows, improves the load-bearing and sealing performance in the middle, while maintaining the integrity and aesthetics of doors and windows, and is suitable for the supporting use of existing invisible hinges.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a quick-assembly power-assisted hinge, which comprises a frame mounting seat, a sash mounting seat, a main connecting seat and an auxiliary connecting seat, the frame mounting seat is rotatably connected with one side of the auxiliary connecting seat through a first connecting shaft, and the other side of the auxiliary connecting seat is rotatably connected with one side of the main connecting seat through a second connecting shaft. The other side of the main connecting base is rotationally connected with the sash mounting base through a third connecting shaft, the center line of the first connecting shaft, the center line of the second connecting shaft and the center line of the third connecting shaft are parallel but not coplanar, and the back face of the frame mounting base and the back face of the sash mounting base are provided with a first positioning part and a second positioning part respectively. And the first positioning part and the second positioning part are respectively embedded into C-shaped grooves on the side vertical surfaces of the door and window frame profile and the door and window sash profile. The quick-mounting power-assisted hinge can realize any opening angle of 0-360 degrees and any opening and closing track, is matched with any existing door and window invisible hinge for use, does not need to damage door and window profiles during mounting, and can solve the problems of load bearing and sealing in the middle of an ultra-large door and window.
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Description

Technical Field

[0001] The utility model belongs to the field of door and window hardware fittings, and particularly relates to a quick-installation assisted hinge. Background Art

[0002] At present, the connection between a door or window sash and a door or window frame is mostly realized through a concealed hinge. Two sets of concealed hinges are used on a set of doors and windows, one set for the upper part and one set for the lower part (i.e., an upper hinge and a lower hinge). Through the opening and closing of the concealed hinge and in cooperation with other door and window hardware fittings, the opening and closing of the door and window are realized. With the emergence of ultra-large doors and windows (the weight of the door is above 150 - 180 kg, and the weight of the window is above 80 kg), the existing concealed hinges are difficult to match the installation of ultra-large doors and windows. Because there are only the upper hinge and the lower hinge for supporting use in the existing market, when used on ultra-large doors and windows, the fatigue test, the load-bearing capacity in the middle part, and the sealing performance cannot meet the requirements. Although some ultra-large doors and windows will add a locking structure at the position between the upper hinge and the lower hinge, the load-bearing capacity in the middle part of the door and window is poor and still difficult to meet the use requirements. When some ultra-large doors and windows are installed, the hinge is directly installed by grooving on the door and window profile. This installation method that damages the profile affects the appearance and will have an adverse impact on the strength, heat preservation, energy conservation, and waterproof effect of the door and window. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a quick-installation assisted hinge aiming at the deficiencies of the existing technology. The quick-installation assisted hinge is convenient, flexible, and fast to install, can realize any opening angle within the range of 0° to 360°, and can realize any opening and closing trajectory. It can be used in combination with any existing concealed hinge of a door and window. During installation, there is no need to damage the door and window profile, and it can solve the load-bearing problem and the sealing problem in the middle part of ultra-large doors and windows.

[0004] The technical solution adopted by the present utility model to solve the above technical problems is as follows: A quick-installation assisted hinge, comprising a frame mounting seat, a sash mounting seat, a main connection seat and an auxiliary connection seat. One side of the frame mounting seat is rotatably connected to one side of the auxiliary connection seat via a first connecting shaft. The other side of the auxiliary connection seat is rotatably connected to one side of the main connection seat via a second connecting shaft. The other side of the main connection seat is rotatably connected to the sash mounting seat via a third connecting shaft. The centerlines of the first connecting shaft, the second connecting shaft and the third connecting shaft are parallel to each other but not coplanar. A first positioning portion is integrally provided on the back surface of the frame mounting seat. A second positioning portion is integrally provided on the back surface of the sash mounting seat. After installation, the first positioning portion is embedded and installed in a C-shaped groove on the side vertical surface of the door and window frame profile. The frame mounting seat is fixed to the side vertical surface of the door and window frame profile through a first locking piece. The first locking piece clamps the two side walls of the C-shaped groove on the side vertical surface of the door and window frame profile. The second positioning portion is embedded and installed in a C-shaped groove on the side vertical surface of the door and window sash profile. The sash mounting seat is fixed to the side vertical surface of the door and window sash profile through a second locking piece. The second locking piece clamps the two side walls of the C-shaped groove on the side vertical surface of the door and window sash profile.

[0005] The quick-installation assisted hinge of the present utility model realizes the connection of the frame mounting seat, the sash mounting seat, the main connection seat and the auxiliary connection seat through three connecting shafts, namely the first connecting shaft, the second connecting shaft and the third connecting shaft, and can realize any opening angle in the range of 0° to 360°, and realize any opening and closing trajectory. Therefore, it can be used in combination with any existing invisible hinges for doors and windows, including invisible hinges for doors and windows with 90° opening, 180° opening, 360° opening and any other arbitrary opening angles, with universality and a wide range of applications.

[0006] In the quick-installation assisted hinge of the present utility model, the centerlines of the first connecting shaft, the second connecting shaft and the third connecting shaft are parallel to each other but not coplanar, so that the sealing performance of the doors and windows can be increased after the doors and windows are closed. Moreover, the main connection seat and the auxiliary connection seat can increase the connection strength between the frame mounting seat and the sash mounting seat, and improve the load-bearing capacity of the middle part of the doors and windows.

[0007] The frame mounting seat and the sash mounting seat of the quick-installation assisted hinge of the present utility model can be quickly installed on the door and window frame profile and the door and window sash profile. During installation, there is no need to damage the door and window profiles, nor to disassemble the doors and windows. There is no need to adjust any part of the doors and windows, and it can also be directly installed on the existing doors and windows in normal use. The installation is convenient, flexible and fast, and can ensure the integrity, beauty and overall performance of the doors and windows.

[0008] Preferably, a first shaft seat, a second shaft seat and a third shaft seat are integrally and spaced up and down on the front surface of the frame mounting seat. There are two auxiliary connection seats. On one side of each auxiliary connection seat, there is a first shaft cylinder, and on the other side, there is a second shaft cylinder. Above and below the second shaft seat, there is one first shaft cylinder each. On one side of the main connection seat, there is a third shaft cylinder, and on the other side, there is a fourth shaft cylinder. A fourth shaft seat and a fifth shaft seat are integrally and spaced up and down on the front surface of the fan mounting seat. The fourth shaft cylinder is arranged between the fourth shaft seat and the fifth shaft seat. The first connecting shaft passes through the first shaft seat, the second shaft seat, the third shaft seat and the two first shaft cylinders at the same time. The second connecting shaft passes through the two second shaft cylinders and the third shaft cylinder at the same time. The third connecting shaft passes through the fourth shaft seat, the fourth shaft cylinder and the fifth shaft seat at the same time. The above structural design is beneficial to ensuring the overall strength, load-bearing capacity, sealing performance and assembly convenience of the quick-installation assist hinge of the present utility model.

[0009] Preferably, first shaft sleeves are respectively installed on the lower part of the first shaft seat, the upper and lower parts of the second shaft seat, and the upper part of the third shaft seat. The first connecting shaft passes through the four first shaft sleeves. Second shaft sleeves are respectively installed on the upper and lower parts of the third shaft cylinder. The second connecting shaft passes through the two second shaft sleeves. Third shaft sleeves are respectively installed on the upper and lower parts of the fourth shaft cylinder. The third connecting shaft passes through the two third shaft sleeves. The first shaft sleeve, the second shaft sleeve and the third shaft sleeve have good wear resistance, which can improve the service life of the first connecting shaft, the second connecting shaft and the third connecting shaft, and ensure the smooth opening and closing of the quick-installation assist hinge of the present utility model at any angle within 0° to 360°.

[0010] Preferably, fixing screws are respectively installed on the first shaft seat, the third shaft seat, each second shaft cylinder, the fourth shaft seat and the fifth shaft seat. Positioning ring grooves are respectively arranged at both ends of the first connecting shaft, the second connecting shaft and the third connecting shaft. One end of each fixing screw is positioned in one of the positioning ring grooves. The two ends of the first connecting shaft, the second connecting shaft and the third connecting shaft are respectively positioned by the fixing screws, which is convenient for assembly, simple in positioning operation and good in positioning effect.

[0011] Preferably, the first positioning part and the second positioning part are respectively arranged along the length directions of the frame mounting seat and the sash mounting seat. The maximum width of the cross-section of the first positioning part is adapted to the width of the C-shaped groove on the side vertical surface of the door and window frame profile, and the maximum width of the cross-section of the second positioning part is adapted to the width of the entrance of the C-shaped groove on the side vertical surface of the door and window sash profile. The quick-installation assisted hinge of the present utility model has a quick-installation function, and its entire installation process is very simple. When installing the quick-installation assisted hinge of the present utility model, obliquely insert the first positioning part on the back of the frame mounting seat into the C-shaped groove on the side vertical surface of the door and window frame profile, then lay the first positioning part flat, and then rotate the first locking piece to complete the installation of the frame mounting seat; vertically insert the second positioning part on the back of the sash mounting seat into the entrance of the C-shaped groove on the side vertical surface of the door and window sash profile, and then rotate the second locking piece to complete the installation of the sash mounting seat.

[0012] Preferably, the first locking piece is installed on the front of the frame mounting seat, and the second locking piece is installed on the back of the sash mounting seat.

[0013] Preferably, two positioning steps adapted to each of the second locking pieces are provided on the back of the sash mounting seat. The two positioning steps are arranged at a pair of diagonal corners of each of the second locking pieces, and positioning notches adapted to the two positioning steps are provided at a pair of diagonal corners of each of the second locking pieces. Before the quick-installation assisted hinge of the present utility model is locked and fixed, the initial positioning of the sash mounting seat in the C-shaped groove on the side vertical surface of the door and window sash profile can be realized through the cooperation of the two positioning steps and the two positioning notches, improving the convenience and accuracy of the installation operation.

[0014] Compared with the prior art, the present utility model has the following advantages: The quick-installation assisted hinge of the present utility model realizes the connection of the frame mounting seat, the sash mounting seat, the main connection seat and the auxiliary connection seat through three connecting shafts, namely the first connecting shaft, the second connecting shaft and the third connecting shaft. Its installation is convenient, flexible and fast, and any opening angle in the range of 0° to 360° can be realized, and any opening and closing trajectory can be realized. Therefore, it can be used in combination with any existing door and window invisible hinge, including door and window invisible hinges with 90° opening, 180° opening, 360° opening and other arbitrary opening angles, and has universality and a wide application range. When installing the quick-installation assisted hinge of the present utility model, there is no need to damage the door and window profiles, nor to disassemble the doors and windows. There is no need to adjust any part of the doors and windows, and it can also be directly installed on the existing doors and windows in normal use. The installation is convenient, flexible and fast, and can solve the bearing problem and sealing problem in the middle of super-large doors and windows. Description of the Drawings

[0015] Figure 1 The front external view of the quick-installation assisted hinge in the embodiment when it is opened at a certain angle;

[0016] Figure 2 Structural decomposition diagram of the quick-installation assist hinge in the embodiment;

[0017] Figure 3 Rear view of the side of the fan mounting seat when the quick-installation assist hinge in the embodiment is closed;

[0018] Figure 4 For Figure 3 Enlarged view at position A in

[0019] Figure 5 Schematic diagram of the state when the first positioning part is obliquely inserted into the C-shaped groove on the side elevation of the door and window frame profile;

[0020] Figure 6 Schematic diagram of the state when the first positioning part lies flat in the C-shaped groove on the side elevation of the door and window frame profile;

[0021] Figure 7 Schematic diagram of the state when the first positioning part lies flat in the C-shaped groove on the side elevation of the door and window frame profile and the first locking piece is locked;

[0022] Figure 8 Axonometric view of the effect after the quick-installation assist hinge in the embodiment is installed;

[0023] Figure 9 Side view of the effect after the quick-installation assist hinge in the embodiment is installed;

[0024] Figure 10 Side view when the quick-installation assist hinge in the embodiment is closed;

[0025] Figure 11 Side view when the quick-installation assist hinge in the embodiment is opened at 90°;

[0026] Figure 12 Side view when the quick-installation assist hinge in the embodiment is opened at 180°;

[0027] Specific reference numerals in the figure are as follows:

[0028] 1 - Frame mounting base, 11 - First positioning part, 12 - First locking piece, 13 - First shaft seat, 14 - Second shaft seat, 15 - Third shaft seat, 16 - First shaft sleeve, 17 - Fixing screw, 18 - Positioning ring groove, 2 - Sash mounting base, 21 - Second positioning part, 22 - Second locking piece, 23 - Positioning step, 24 - Positioning notch, 25 - Fourth shaft seat, 26 - Fifth shaft seat, 3 - Main connection base, 31 - Third shaft cylinder, 32 - Fourth shaft cylinder, 33 - Second shaft sleeve, 34 - Third shaft sleeve, 4 - Auxiliary connection base, 41 - First shaft cylinder, 42 - Second shaft cylinder, 5 - First connecting shaft, 6 - Second connecting shaft, 7 - Third connecting shaft, 8 - Door and window frame profile, 81 - C-shaped groove on the side surface of the door and window frame profile, 9 - Door and window sash profile, 91 - C-shaped groove on the side surface of the door and window sash profile, 92 - Entrance of the C-shaped groove on the side surface of the door and window sash profile. Detailed implementation mode

[0029] The following further describes the present utility model in detail with reference to the embodiments in the drawings. Structures or components not defined in the present utility model all adopt conventional technical means in the art.

[0030] The quick-installation assisting hinge of the embodiment is as Figures 1 to 4 shown, and includes a frame mounting base 1, a sash mounting base 2, a main connection base 3 and an auxiliary connection base 4. The frame mounting base 1 is rotatably connected to one side of the auxiliary connection base 4 through a first connecting shaft 5. The other side of the auxiliary connection base 4 is rotatably connected to one side of the main connection base 3 through a second connecting shaft 6. The other side of the main connection base 3 is rotatably connected to the sash mounting base 2 through a third connecting shaft 7. The centerlines of the first connecting shaft 5, the second connecting shaft 6 and the third connecting shaft 7 are parallel to each other but not coplanar. A first positioning part 11 is integrally provided on the back surface of the frame mounting base 1, and a second positioning part 21 is integrally provided on the back surface of the sash mounting base 2. After installation, the first positioning part 11 is embedded and installed in the C-shaped groove 81 on the side surface of the door and window frame profile 8. The frame mounting base 1 is fixed to the side surface of the door and window frame profile 8 through the first locking piece 12. The first locking piece 12 clamps the two side walls of the C-shaped groove 81 on the side surface of the door and window frame profile 8. The second positioning part 21 is embedded and installed in the C-shaped groove 91 on the side surface of the door and window sash profile 9. The sash mounting base 2 is fixed to the side surface of the door and window sash profile 9 through the second locking piece 22. The second locking piece 22 clamps the two side walls of the C-shaped groove 91 on the side surface of the door and window sash profile 9.

[0031] In this embodiment, the first positioning part 11 and the second positioning part 21 are respectively arranged along the length directions of the frame mounting base 1 and the sash mounting base 2. The maximum width of the cross-section of the first positioning part 11 is adapted to the width of the C-shaped groove 81 on the side surface of the door and window frame profile 8. The maximum width of the cross-section of the second positioning part 21 is adapted to the width of the entrance 92 of the C-shaped groove 91 on the side surface of the door and window sash profile 9.

[0032] The first locking piece 12 is installed on the front of the frame mounting seat 1, and the second locking piece 22 is installed on the back of the sash mounting seat 2. Two positioning steps 23 adapted to each second locking piece 22 are provided on the back of the sash mounting seat 2. The two positioning steps 23 are arranged at a pair of diagonal corners of each second locking piece 22, and positioning notches 24 adapted to the two positioning steps 23 are provided at a pair of diagonal corners of each second locking piece 22.

[0033] The first shaft seat 13, the second shaft seat 14, and the third shaft seat 15 are integrally and spaced up and down on the front of the frame mounting seat 1. The number of auxiliary connection seats 4 is two. A first shaft cylinder 41 is provided on one side of each auxiliary connection seat 4, and a second shaft cylinder 42 is provided on the other side. A first shaft cylinder 41 is provided above and below the second shaft seat 14. A third shaft cylinder 31 is provided on one side of the main connection seat 3, and a fourth shaft cylinder 32 is provided on the other side. The fourth shaft seat 25 and the fifth shaft seat 26 are integrally and spaced up and down on the front of the sash mounting seat 2. The fourth shaft cylinder 32 is arranged between the fourth shaft seat 25 and the fifth shaft seat 26. The first connecting shaft 5 passes through the first shaft seat 13, the second shaft seat 14, the third shaft seat 15, and the two first shaft cylinders 41 at the same time. The second connecting shaft 6 passes through the two second shaft cylinders 42 and the third shaft cylinder 31 at the same time. The third connecting shaft 7 passes through the fourth shaft seat 25, the fourth shaft cylinder 32, and the fifth shaft seat 26 at the same time.

[0034] First shaft sleeves 16 are respectively installed on the lower part of the first shaft seat 13, the upper and lower parts of the second shaft seat 14, and the upper part of the third shaft seat 15. The first connecting shaft 5 passes through the four first shaft sleeves 16. Second shaft sleeves 33 are respectively installed on the upper and lower parts of the third shaft cylinder 31. The second connecting shaft 6 passes through the two second shaft sleeves 33. Third shaft sleeves 34 are respectively installed on the upper and lower parts of the fourth shaft cylinder 32. The third connecting shaft 7 passes through the two third shaft sleeves 34. Fixing screws 17 are respectively installed on the first shaft seat 13, the third shaft seat 15, each second shaft cylinder 42, the fourth shaft seat 25, and the fifth shaft seat 26. Positioning ring grooves 18 are provided at both ends of the first connecting shaft 5, the second connecting shaft 6, and the third connecting shaft 7. One end of each fixing screw 17 is positioned in a positioning ring groove 18.

[0035] The above quick-installation assist hinge has a quick-installation function. Its entire installation process is very simple. It is not necessary to damage the door and window profiles, nor to disassemble the doors and windows. It is not necessary to adjust any part of the doors and windows, and it can also be directly installed on the existing normally used doors and windows. The installation is convenient, flexible, and fast. During installation, the first positioning part 11 on the back of the frame mounting seat 1 is obliquely inserted into the C-shaped groove 81 on the side vertical surface of the door and window frame profile 8 (see Figure 5 ), then the first positioning part 11 is laid flat (see Figure 6 ), and then the first locking piece 12 is rotated (see Figure 7), that is, the installation of the frame mounting seat 1 is completed; the second positioning portion 21 on the back of the sash mounting seat 2 is vertically inserted into the entrance 92 of the C-shaped groove 91 on the side surface of the door and window sash profile 9, and then the second locking piece 22 is rotated, that is, the installation of the sash mounting seat 2 is completed. The schematic diagram of the effect after the above quick-installation assist hinge is installed is shown in Figure 8 and Figure 9 .

[0036] The above quick-installation assist hinge realizes the connection of the frame mounting seat 1, the sash mounting seat 2, the main connection seat 3 and the auxiliary connection seat 4 through three connecting shafts whose center lines are parallel to each other but not coplanar, namely the first connecting shaft 5, the second connecting shaft 6 and the third connecting shaft 7. After the door and window are closed, the sealing performance of the door and window can be increased, and the main connection seat 3 and the auxiliary connection seat 4 can increase the connection strength between the frame mounting seat 1 and the sash mounting seat 2, improve the load-bearing capacity in the middle of the door and window. In addition, any opening angle in the range of 0° to 360° can be realized, and any opening and closing trajectory can be realized, so that it can be used in combination with any existing invisible hinge for doors and windows, including invisible hinges for doors and windows with 90° opening, 180° opening, 360° opening and other arbitrary opening angles, which has universality and a wide range of applications. The side views of the above quick-installation assist hinge when it is closed, opened at 90°, and opened at 180° are as shown in Figure 10 、 Figure 11 、 Figure 12 shown.

Claims

1. A quick-installation assist hinge, characterized in that, It includes a frame mounting base, a fan mounting base, a main connecting base and an auxiliary connecting base. One side of the frame mounting base is rotatably connected to one side of the auxiliary connecting base via a first connecting shaft. The other side of the auxiliary connecting base is rotatably connected to one side of the main connecting base via a second connecting shaft. The other side of the main connecting base is rotatably connected to the fan mounting base via a third connecting shaft. The centerlines of the first connecting shaft, the second connecting shaft and the third connecting shaft are parallel to each other but not coplanar. A first positioning portion is integrally provided on the back surface of the frame mounting base. A second positioning portion is integrally provided on the back surface of the fan mounting base. After installation, the first positioning portion is embedded and installed in a C-shaped groove on the side vertical surface of the door and window frame profile. The frame mounting base is fixed to the side vertical surface of the door and window frame profile by a first locking piece. The first locking piece clamps the two side walls of the C-shaped groove on the side vertical surface of the door and window frame profile. The second positioning portion is embedded and installed in a C-shaped groove on the side vertical surface of the door and window sash profile. The fan mounting base is fixed to the side vertical surface of the door and window sash profile by a second locking piece. The second locking piece clamps the two side walls of the C-shaped groove on the side vertical surface of the door and window sash profile.

2. The quick-installation assist hinge according to claim 1, characterized in that, On the front surface of the frame mounting base, a first shaft seat, a second shaft seat and a third shaft seat are integrally arranged at intervals up and down. The number of the auxiliary connecting bases is two. A first shaft cylinder is provided on one side of each auxiliary connecting base, and a second shaft cylinder is provided on the other side. One first shaft cylinder is provided above and below the second shaft seat respectively. A third shaft cylinder is provided on one side of the main connecting base, and a fourth shaft cylinder is provided on the other side. On the front surface of the fan mounting base, a fourth shaft seat and a fifth shaft seat are integrally arranged at intervals up and down. The fourth shaft cylinder is arranged between the fourth shaft seat and the fifth shaft seat. The first connecting shaft passes through the first shaft seat, the second shaft seat, the third shaft seat and the two first shaft cylinders at the same time. The second connecting shaft passes through the two second shaft cylinders and the third shaft cylinder at the same time. The third connecting shaft passes through the fourth shaft seat, the fourth shaft cylinder and the fifth shaft seat at the same time.

3. The quick-installation assist hinge according to claim 2, wherein First shaft sleeves are respectively installed at the lower part of the first shaft seat, the upper part and the lower part of the second shaft seat, and the upper part of the third shaft seat. The first connecting shaft passes through the four first shaft sleeves. Second shaft sleeves are respectively installed at the upper part and the lower part of the third shaft cylinder. The second connecting shaft passes through the two second shaft sleeves. Third shaft sleeves are respectively installed at the upper part and the lower part of the fourth shaft cylinder. The third connecting shaft passes through the two third shaft sleeves.

4. The quick-installation assist hinge according to claim 3, characterized in that, Fixing screws are respectively installed on the first shaft seat, the third shaft seat, each second shaft cylinder, the fourth shaft seat and the fifth shaft seat. Positioning ring grooves are respectively provided at both ends of the first connecting shaft, the second connecting shaft and the third connecting shaft. One end of each fixing screw is positioned in one of the positioning ring grooves.

5. A quick-installation assist hinge according to claim 1, wherein, The described first positioning portion and the described second positioning portion are respectively arranged along the length directions of the frame mounting seat and the sash mounting seat. The maximum width of the cross-section of the first positioning portion is adapted to the width of the C-shaped groove on the side vertical surface of the door and window frame profile, and the maximum width of the cross-section of the second positioning portion is adapted to the width of the entrance of the C-shaped groove on the side vertical surface of the door and window sash profile.

6. The quick-installation assist hinge according to claim 1, characterized in that, The described first locking piece is installed on the front surface of the frame mounting seat, and the described second locking piece is installed on the back surface of the sash mounting seat.

7. The quick-installation assist hinge according to claim 6, wherein, Two positioning steps adapted to each of the second locking pieces are provided on the back surface of the sash mounting seat. The two positioning steps are arranged at a pair of diagonal corners of each of the second locking pieces, and positioning notches adapted to the two positioning steps are provided at a pair of diagonal corners of each of the second locking pieces.