A concealed hinge for a frame and panel flat profile

Abstract

The utility model discloses a kind of hidden hinges for frame-fan flush section bar, the hinge main part includes the first blade assembly fixed in frame body part, the second blade assembly fixed in fan body part and the connecting rod structure connecting the first blade assembly and second blade assembly, the first blade assembly is installed in frame body part in embedded mode, the second blade assembly is connected and fixed with fan body part, the first blade assembly and second blade assembly are connected and fixed by connecting rod structure, in closed state, the connecting rod structure is contracted into the installation groove, when this hinge structure acts in frame-fan flush section bar, the outer facade of fan body part and frame body part can keep better flush effect, under the advantage of considering small volume and small opening size, the opening angle of opening fan can also be greater than 90 degrees, specifically 95.5 degrees, while better hiding effect is realized to hinge main body from fan body outside and inside.

Description

Technical Field

[0001] This utility model relates to the field of door and window accessories technology, specifically to a concealed hinge for frame and sash flush profiles. Background Technology

[0002] A hinge is a type of hinge structure, a mechanical device used to connect two solid objects and allow relative rotation between them. Hinges are used in furniture such as cabinets, cupboards, doors, and windows.

[0003] Commonly used hinges are usually connected within the rotation angle between the fixed plate and the movable fan. When the movable fan is closed, the hinge is exposed to the outside. Even when the movable fan is closed, a large part of the structure still protrudes from the fixed plate and the movable fan, affecting the aesthetics of the inside of the movable fan and the installation space.

[0004] To address the issue of concealed hinges, concealed hinges have emerged in the market. Due to their discreetness and aesthetic appeal, concealed hinges are widely used in home furnishing designs. Traditional concealed hinges use hinge arms to open and close the door and frame. However, because the hinge arms themselves are relatively large, concealed hinges often have a significant thickness, which can lead to large gaps between the door and frame in some cases, thus affecting the overall aesthetics.

[0005] Furthermore, for most of the hidden door hinges on the market, they can only be used on non-flat frame profiles. The pain point of existing products and competitors is that when hidden door hinges are used on profiles with flush frames and sashes, the size requirement of the hidden door hinges is large, which leads to a larger opening size. Some hinges with smaller size and smaller opening size cannot achieve an opening angle of more than 90 degrees for the sash. Utility Model Content

[0006] To address the technical deficiencies in the background technology, this utility model proposes a concealed hinge for frame-sash flush profiles, solving the aforementioned technical problems and meeting practical needs. The specific technical solution is as follows:

[0007] A concealed hinge for a frame-sash flush profile includes a hinge body, the hinge body including a first blade assembly fixed to the frame portion, a second blade assembly fixed to the sash portion, and a connecting rod structure connecting the first blade assembly and the second blade assembly.

[0008] The first blade assembly has an outwardly opening mounting groove. A first fixing block and a second fixing block are respectively provided at both ends of the mounting groove. The connecting rod structure is disposed in the mounting groove. The connecting rod structure includes a first connecting plate, a second connecting plate, and a third connecting plate. One end of the first connecting plate and the second connecting plate extends into the mounting groove and is hinged to the first fixing block and the second fixing block. The other end of the first connecting plate is hinged to one end of the third connecting plate. The other end of the second connecting plate is hinged to the side of the third connecting plate closer to the first connecting plate. The other end of the third connecting plate is connected to the second blade assembly.

[0009] As an improvement to the above solution, the side of the first fixing block is provided with a first extension portion that is fixed to the mounting groove, and a first spacing adjustment screw is inserted into the mounting groove along the thickness direction of the first extension portion.

[0010] As an improvement to the above solution, the side of the second fixing block is provided with a second extension portion that is fixed to the mounting groove, and a second spacing adjustment screw is inserted into the mounting groove along the thickness direction of the second extension portion.

[0011] As an improvement to the above solution, a first shaft and a second shaft arranged in parallel are connected between the first fixing block and the second fixing block. One end of the first connecting plate is sleeved in a ring shape on the outside of the first shaft and aligned with the axis of the first shaft. One end of the second connecting plate is sleeved in a ring shape on the outside of the second shaft and aligned with the axis of the second shaft.

[0012] As an improvement to the above solution, the other end of the first connecting plate is bent and connected to the end of the third connecting plate, and a third shaft is provided at the end position corresponding to the connection between the first connecting plate and the third connecting plate.

[0013] The other end of the third connecting plate is bent and connected to the second blade assembly. The end of the second connecting plate is hinged to the bent position of the third connecting plate. A fourth shaft is provided at the hinge position between the second connecting plate and the third connecting plate.

[0014] As an improvement to the above solution, the first blade assembly further includes a first adjusting member that is sandwiched in a sheet shape between the end of the mounting groove and the frame portion, and a first adjusting screw is provided along the mounting groove toward the first adjusting member.

[0015] As an improvement to the above solution, the second blade assembly includes a second adjusting member sandwiched in a sheet shape between the third connecting plate and the fan body portion. The end of the third connecting plate connected to the second adjusting member is provided with an integrally formed elongated condition, and a second adjusting screw is provided along the elongated condition toward the second adjusting member.

[0016] The beneficial effects of this utility model are as follows: the first blade assembly is embedded in the frame part, the second blade assembly is connected and fixed to the fan part, and the first blade assembly and the second blade assembly are connected and fixed by a connecting rod structure. In the closed state, the connecting rod structure retracts into the mounting groove. When this hinge structure acts on the profile with the frame and fan flush, the exposed volume is small and the opening size is also small. The outer surfaces of the fan part and the frame part can maintain a good flush effect. At the same time, the hinge body is well hidden from both the outside and inside of the fan body. While taking into account the advantages of small size and small opening size, the opening angle of the fan can also be greater than 90 degrees. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the hinge of this utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the main structure of the hinge of this utility model. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the unfolded structure of the hinge body of this utility model.

[0020] Figure 4 This is a schematic diagram of the first blade assembly structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the connecting rod structure of this utility model.

[0022] Figure 6 This is a schematic diagram showing the engagement state of the hinge body and the fan frame of this utility model.

[0023] Figure 7 This is a schematic diagram of the closed state of the fan-shaped frame of this utility model.

[0024] Figure 8 This is a schematic diagram of the fan-shaped frame of this utility model in the open state.

[0025] The components include: hinge body 1, first leaf assembly 2, mounting groove 21, first adjusting component 22, first adjusting screw 23, second leaf assembly 3, second adjusting component 31, extension 32, second adjusting screw 33, connecting rod structure 4, first connecting plate 41, second connecting plate 42, third connecting plate 43, first shaft 44, second shaft 45, third shaft 46, fourth shaft 47, first fixing block 5, first extension 51, first spacing adjusting screw 52, ​​first fixing screw 53, second fixing block 6, second extension 61, second spacing adjusting screw 62, second fixing screw 63, first strip groove 7, second strip groove 8, and height adjusting block 9. Detailed Implementation

[0026] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0027] A concealed hinge for a frame-sash flush profile includes a hinge body 1, wherein the hinge body 1 includes a first blade assembly 2 fixed to the frame portion, a second blade assembly 3 fixed to the sash portion, and a connecting rod structure 4 connecting the first blade assembly 2 and the second blade assembly 3.

[0028] In the technical solution of the hinge body 1 of this utility model, the hinge body 1 is sandwiched between the frame part and the fan part, the first blade assembly 2 is fixed on the frame, the second blade assembly 3 is fixed on the fan, and the first blade assembly 2 and the second blade assembly 3 are connected by a connecting rod structure 4.

[0029] The frame has an embedding groove and a first strip groove 7 for mounting the first blade assembly 2. The mounting groove 21 is embedded in the frame and is fixed by the first adjusting member 22 clamping the first strip groove 7 with the mounting groove 21. The fan body has a second strip groove 8 along its length. The second adjusting member 31 passes through the second strip groove 8. The second blade assembly 3 is fixed by the second adjusting member 31 clamping the second strip groove 8 with the long member 32. The second strip groove 8 has a height adjusting block 9 at the bottom of the second blade assembly 3.

[0030] Specifically, the first blade assembly 2 further includes a first adjusting member 22 that is sandwiched in a sheet shape between the end of the mounting groove 21 and the frame portion. A first adjusting screw 23 is provided along the mounting groove 21 toward the first adjusting member 22. The first adjusting member 22 is inserted into the first strip groove 7. By turning the first adjusting screw 23, the first adjusting member 22 can be adjusted to clamp the upper edge of the first strip groove 7 with the mounting groove 21 to achieve fixation.

[0031] Specifically, the second blade assembly 3 includes a second adjusting member 31 that is sandwiched between the third connecting plate 43 and the fan body portion in a sheet-like shape. The end of the third connecting plate 43 that connects to the second adjusting member 31 is provided with an integrally formed long condition 32. A second adjusting screw 33 is provided along the long condition 32 toward the second adjusting member 31. The second adjusting member 31 is inserted into the second strip groove 8. By turning the second adjusting screw 33, the second adjusting member 31 and the long condition 32 can be adjusted to clamp the upper edge of the second strip groove 8 to achieve fixation.

[0032] In the technical solution of the first blade assembly 2 of this utility model, the first blade assembly 2 has an installation groove 21 with an opening facing outward. The two ends of the installation groove 21 are respectively provided with a first fixing block 5 and a second fixing block 6. The connecting rod structure 4 is disposed in the installation groove 21. In the open state, the connecting rod structure 4 extends outward along the groove opening of the installation groove 21. In the closed state, the connecting rod structure 4 retracts into the installation groove 21.

[0033] Furthermore, in the above solution, the side of the first fixing block 5 is provided with a first extension 51 fixed to the mounting groove 21, and a first spacing adjustment screw 52 is inserted into the mounting groove 21 along the thickness direction of the first extension 51. The side of the second fixing block 6 is provided with a second extension 61 fixed to the mounting groove 21, and a second spacing adjustment screw 62 is inserted into the mounting groove 21 along the thickness direction of the second extension 61. The first spacing adjustment screw 52 and the second spacing adjustment screw 62 adjust the position of the first fixing block 5 and the second fixing block 6 in the mounting groove 21, thereby adjusting the overlap gap between the frame and the fan body.

[0034] Furthermore, a first fixing screw 53 is provided on the side adjacent to the first fixing block 5, and a second fixing screw 63 is provided on the side adjacent to the second fixing block 6. After adjusting the first spacing adjusting screw 52 and the second spacing adjusting screw 62 to adjust the overlap gap between the frame and the fan body, the first fixing block 5 and the second fixing block 6 are fixed by screwing the first fixing screw 53 and the second fixing screw 63, thereby completing the installation of the first blade assembly 2.

[0035] Furthermore, in the above scheme, the connecting rod structure 4 includes a first connecting plate 41, a second connecting plate 42, and a third connecting plate 43. One end of the first connecting plate 41 and the second connecting plate 42 extends into the mounting groove 21 and is hinged to the first fixing block 5 and the second fixing block 6. The other end of the first connecting plate 41 is hinged to one end of the third connecting plate 43. The other end of the second connecting plate 42 is hinged to the side of the third connecting plate 43 near the first connecting plate 41. The other end of the third connecting plate 43 is connected to the second blade assembly 3.

[0036] A first shaft 44 and a second shaft 45 arranged in parallel are connected between the first fixing block 5 and the second fixing block 6. One end of the first connecting plate 41 is sleeved in a ring shape on the outside of the first shaft 44 and aligned with the axis of the first shaft 44. One end of the second connecting plate 42 is sleeved in a ring shape on the outside of the second shaft 45 and aligned with the axis of the second shaft 45.

[0037] It should be noted that when the fan body opens outward, the first connecting plate 41 and the second connecting plate 42 rotate outward with the first shaft 44 and the second shaft 45 as the axis, respectively, and the third connecting plate 43 extends outward synchronously. At the same time, in order to increase the opening angle of the fan body, the side of the first connecting plate 41 is provided with a first arc-shaped groove that matches the curvature of the outer surface of the second shaft 45, and the side of the second connecting plate 42 is provided with a second arc-shaped groove that matches the curvature of the outer surface of the third shaft 46. When the fan body reaches the maximum opening angle, the end of the second connecting plate 42 connected to the second shaft 45 is attached to the first arc-shaped groove, and the end of the first connecting plate 41 connected to the third connecting plate 43 is attached to the second arc-shaped groove.

[0038] Furthermore, in the above scheme, the other end of the first connecting plate 41 is bent and connected to the end of the third connecting plate 43, and a third shaft 46 is provided at the end position corresponding to the connection between the first connecting plate 41 and the third connecting plate 43.

[0039] Furthermore, in the above scheme, the other end of the third connecting plate 43 is bent and connected to the second blade assembly 3, the end of the second connecting plate 42 is hinged to the bent position of the third connecting plate 43, and a fourth shaft 47 is provided corresponding to the hinge position of the second connecting plate 42 and the third connecting plate 43.

[0040] It should be noted that when the fan body retracts, the first connecting plate 41 and the second connecting plate 42 retract toward the bottom of the mounting groove 21, causing the third connecting plate 43 to retract toward the mounting groove 21. At the same time as the retraction, the third connecting plate 43 and the first connecting plate 41 rotate and fold around the third shaft 46. The third connecting plate 43 and the second connecting plate 42 rotate and position around the fourth shaft 47, controlling the second blade assembly 3 to retract and close.

[0041] Furthermore, when the hinge body of this technology is applied to a profile with a flush frame and sash, the first blade assembly 2 is embedded in the frame, reducing the gap between the frame and the sash. The second blade assembly 3 is connected and fixed to the sash. The first blade assembly 2 and the second blade assembly 3 are connected and fixed through a connecting rod structure 4. Under the action of the connecting rod structure 4, the opening angle of the sash is greatly improved, generally greater than 90 degrees. In the closed state, the connecting rod structure 4 retracts into the mounting groove 21. When this hinge structure is applied to a profile with a flush frame and sash, the exposed volume is small and the opening size is also small. Compared with existing hinges that are small in volume and have small opening sizes, which cannot simultaneously achieve an opening angle of more than 90 degrees for the sash, the hinge body 1 of this technology, while taking into account the advantages of small volume and small opening size, can also open the sash to an opening angle greater than 90 degrees.

[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A concealed hinge for frame-sash flush profiles, characterized in that, The hinge body (1) includes a first blade assembly (2) fixed to the frame part, a second blade assembly (3) fixed to the fan part, and a connecting rod structure (4) connecting the first blade assembly (2) and the second blade assembly (3). The first blade assembly (2) has an outwardly opening mounting groove (21). The two ends of the mounting groove (21) are respectively provided with a first fixing block (5) and a second fixing block (6). The connecting rod structure (4) is disposed in the mounting groove (21). The connecting rod structure (4) includes a first connecting plate (41), a second connecting plate (42) and a third connecting plate (43). One end of the first connecting plate (41) and the second connecting plate (42) extends into the mounting groove (21) and is hinged to the first fixing block (5) and the second fixing block (6). The other end of the first connecting plate (41) is hinged to one end of the third connecting plate (43). The other end of the second connecting plate (42) is hinged to the side of the third connecting plate (43) close to the first connecting plate (41). The other end of the third connecting plate (43) is connected to the second blade assembly (3).

2. The concealed hinge for frame-sash flush profiles according to claim 1, characterized in that, The first fixing block (5) has a first extension (51) fixed to the mounting groove (21) on its side, and a first spacing adjustment screw (52) is inserted into the mounting groove (21) along the thickness direction of the first extension (51).

3. The concealed hinge for frame-sash flush profiles according to claim 1, characterized in that, The second fixing block (6) has a second extension (61) fixed to the mounting groove (21) on its side, and a second spacing adjustment screw (62) is inserted into the mounting groove (21) along the thickness direction of the second extension (61).

4. The concealed hinge for frame-sash flush profiles according to claim 1, characterized in that, A first shaft (44) and a second shaft (45) arranged in parallel are connected between the first fixing block (5) and the second fixing block (6). One end of the first connecting plate (41) is sleeved in a ring shape on the outside of the first shaft (44) and aligned with the axis of the first shaft (44). One end of the second connecting plate (42) is sleeved in a ring shape on the outside of the second shaft (45) and aligned with the axis of the second shaft (45).

5. The concealed hinge for frame-sash flush profiles according to claim 1, characterized in that, The other end of the first connecting plate (41) is bent and connected to the end of the third connecting plate (43). A third shaft (46) is provided at the end position corresponding to the connection between the first connecting plate (41) and the third connecting plate (43). The other end of the third connecting plate (43) is bent and connected to the second blade assembly (3). The end of the second connecting plate (42) is hinged to the bent position of the third connecting plate (43). A fourth shaft (47) is provided at the hinge position between the second connecting plate (42) and the third connecting plate (43).

6. The concealed hinge for frame-sash flush profiles according to claim 1, characterized in that, The first blade assembly (2) further includes a first adjusting member (22) sandwiched in a sheet shape between the end of the mounting groove (21) and the frame portion, and a first adjusting screw (23) is provided along the mounting groove (21) toward the first adjusting member (22).

7. The concealed hinge for frame-sash flush profiles according to claim 1, characterized in that, The second blade assembly (3) includes a second adjusting member (31) sandwiched in a sheet shape between the third connecting plate (43) and the fan body portion. The end of the third connecting plate (43) connected to the second adjusting member (31) is provided with an integrally formed long condition (32), and a second adjusting screw (33) is provided along the long condition (32) toward the second adjusting member (31).

Images