Hinge Angle Adjustment Mechanism and Universal Concealed Hinge

Abstract

The present invention discloses and provides a hinge angle adjustment mechanism and a universal hidden hinge that can reduce the manufacturer's inventory and economic pressure by switching the opening angle of the hinge, and the product is applicable to both outward-opening casement windows and inward-opening casement windows. The universal hidden hinge includes a hinge angle adjustment mechanism. The hinge angle adjustment mechanism includes a window frame fixing plate, a positioning slider slidably matched with the window frame fixing plate, and an angle adjustment nail rotatably arranged on the window frame fixing plate. A limit convex block is arranged at the bottom of the angle adjustment nail, and a convex block receiving groove matched with the limit convex block is arranged on one side of the positioning slider facing the angle adjustment nail. Before adjustment, the limit convex block blocks the convex block receiving groove, and after adjustment, the limit convex block can be received into the convex block receiving groove. The present invention can be widely applied to the field of door and window systems.

Description

Technical Field

[0001] The present invention relates to a hinge angle adjustment mechanism and a general hidden hinge. Background Art

[0002] A door and window hinge is a device used to connect a window frame and a window sash, support the weight of the door and window, and realize the opening and closing of the door and window. A hidden hinge is a hinge embedded in the structure of a door frame or window frame. Different from the traditional type of hinge visible from the outside, the hidden hinge is invisible when the door is closed, and is suitable for situations where any additional obstacles are to be avoided, and for situations where, for aesthetic or safety reasons, the hinge is preferably invisible when the door or panel is closed.

[0003] Currently, the opening angle of the more common hidden hinges on the market is generally 90 degrees, which is mainly applied to outward-opening casement windows. At the same time, there are also some screen window hinges that pursue a larger opening angle, which are mainly applied to inward-opening screen windows, and the opening angle is generally 165 degrees or even 180 degrees. It can avoid occupying indoor space and posing potential safety hazards to people while being convenient to use. However, users can only choose one type of hinge, and cannot make the hinges applied to glass windows and screen windows universal. The product versatility is very poor. This will cause hinge manufacturers to need to stock one or several products with different opening angles additionally. The inventory of multiple products will impose great pressure on the entire processing and inventory, resulting in huge economic waste, and there are certain deficiencies. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a hinge angle adjustment mechanism and a general hidden hinge that can switch the opening angle of the hinge, make the product universal for outward-opening and inward-opening windows, and reduce the inventory and economic pressure of the manufacturer.

[0005] The technical solution adopted by a hinge angle adjustment mechanism of the present invention is as follows: the hinge angle adjustment mechanism includes a window frame fixing plate, a positioning slider slidably matched with the window frame fixing plate, and an angle adjustment nail rotatably arranged on the window frame fixing plate. A limiting convex block is arranged at the bottom of the angle adjustment nail, and a convex block receiving groove matched with the limiting convex block is arranged on one side of the positioning slider facing the angle adjustment nail. Before adjustment, the limiting convex block blocks the convex block receiving groove, and after adjustment, the limiting convex block can be received into the convex block receiving groove.

[0006] Furthermore, the hinge angle adjustment mechanism further includes a main support plate located above the window frame fixing plate and a pin for hinging the main support plate to the positioning slider. A horizontal sliding groove is provided on the window frame fixing plate. The width of the positioning slider is greater than the width of the horizontal sliding groove. The pin passes through the main support plate and the horizontal sliding groove in sequence and forms a movable hinge structure with the positioning slider.

[0007] Furthermore, the angle adjustment pin includes a nail cap, a rotating column, and the limiting convex block arranged in sequence from top to bottom. A countersunk head adjustment groove is provided at the top of the nail cap. The rotating column is rotationally matched with the window frame fixing plate through a bearing. The limiting convex block is rectangular, and the width of the limiting convex block is the same as the width of the convex block receiving groove.

[0008] Furthermore, the distance from the end of the positioning slider to the angle adjustment pin matches the stroke when the hinge is opened to 90 degrees.

[0009] The technical solution adopted by a general hidden hinge of the present invention is as follows: The general hidden hinge includes the above-mentioned hinge angle adjustment mechanism, a window sash fixing plate, a long support plate, and a short support plate. One end of the main support plate is slidably hinged on the horizontal sliding groove, and the other end is hinged to the end of the short support plate. The other end of the short support plate is hinged to the middle of the window sash fixing plate. One end of the long support plate is hinged to the end of the window frame fixing plate, and the other end is hinged to the front end of the window sash fixing plate. The middle of the long support plate is hinged to the middle of the main support plate. The window sash fixing plate and the window frame fixing plate can be relatively closed and opened to 180 degrees under the linkage of the long support plate, the short support plate, and the main support plate.

[0010] Furthermore, a short support plate receiving portion is provided on the right side of the long support plate. When closed, the short support plate can be received in the short support plate receiving portion.

[0011] Furthermore, a first relief groove is provided on the left side of the main support plate, and a second relief groove is provided on the left side of the long support plate. When the hinge is fully opened, the edges of the first relief groove and the second relief groove coincide to form a window sash avoidance angle.

[0012] Furthermore, the hinge joint between the long support plate and the window frame fixing plate is a left-right eccentric adjustment pin, and a longitudinal waist-shaped groove is provided on the window frame fixing plate corresponding to the left-right eccentric adjustment pin.

[0013] The beneficial effects of the present invention are as follows: the hinge angle adjustment mechanism of the present invention comprises a window frame fixing plate, a positioning slider slidably matched with the window frame fixing plate, and an angle adjustment nail rotatably arranged on the window frame fixing plate, a limiting protrusion is arranged at the bottom of the angle adjustment nail, and a protrusion accommodating groove matching the limiting protrusion is arranged on the side of the positioning slider facing the angle adjustment nail. Before adjustment, the limiting protrusion blocks the protrusion accommodating groove, so that the opening angle of the hinge is limited and can only be opened to 90 degrees. After adjustment, the limiting protrusion can be incorporated into the protrusion accommodating groove, thereby removing the restriction on the sliding of the positioning slider, and the hinge can be opened to a larger angle, even up to 180 degrees under the condition of support from a connecting rod mechanism, so that the hinge can be opened by switching the hinge opening angle. The product is commonly used for external casement windows and inward opening windows, reducing manufacturer inventory and economic pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 It is a structural schematic diagram of the bottom of the present invention;

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the angle adjustment nail of the present invention. DETAILED DESCRIPTION

[0017] The technical solution claimed in this application document is further described in detail below in conjunction with the accompanying drawings and embodiments:

[0018] like Figure 1 , Figure 2 , Figure 3As shown, the present application document claims a hinge angle adjustment mechanism and a general hidden hinge. This general hidden hinge can be applied to the glass window of an outward-opening window or the screen window of an inward-opening window. It mainly switches and adjusts the opening angle of the hinge through the hinge angle adjustment mechanism on the hinge. In the general open state, an opening angle is formed between the window sash and the window frame. Commonly, it is opened to 90 degrees. However, the general hidden hinge described in the present application can achieve an ultra-large opening angle of 180 degrees, with better ventilation and air permeability effects and being more aesthetically pleasing. Specifically, the general hidden hinge includes a window frame fixing plate 1, a main support plate 5, a short support plate 4, a long support plate 3, and a window sash fixing plate 2. The window frame fixing plate 1 is used for fixedly connecting with the window frame profile, and the window sash fixing plate 2 is used for fixedly connecting with the window sash profile, enabling the window sash profile to rotate relative to the window frame profile to achieve the opening and closing of the window sash. A horizontal sliding groove 11 is provided on the window frame fixing plate 1. The middle part of one end of the main support plate 5 is slidably hinged on the horizontal sliding groove 11, and the other end is hinged to the end of the short support plate 4 near the left side. The middle of the other end of the short support plate 4 is hinged to the middle part of the window sash fixing plate 2 near the right side. One end of the long support plate 3 near the right side is hinged to the end of the window frame fixing plate 1, and the middle part of the other end is hinged to the front end of the window sash fixing plate 2. Moreover, the middle part of the long support plate 3 near the left side is hinged to the middle part of the main support plate 5 near the right side. Due to size limitations, such a setting will have a relatively large stroke. Otherwise, the hinge needs to be made larger as a whole, resulting in higher costs and more cumbersome opening. Through such a structure, the window sash fixing plate 2 and the window frame fixing plate 1 can relatively close and open under the linkage of the long support plate 3, the short support plate 4, and the main support plate 5, and achieve a large-range opening of 180 degrees of the window sash when opening.

[0019] In order to make it more convenient for customers to use and to allow the hidden hinge to be used for both outward-opening windows and inward-opening windows, the applicant has added a hinge angle adjustment mechanism to the hinge, which includes a window frame fixing plate 1, a main support plate 5 located above the window frame fixing plate 1, a positioning slider 8 slidably matched with the window frame fixing plate 1, a pin 7 hingedly connecting the main support plate 5 with the positioning slider 8, and an angle adjustment nail 10 rotatably arranged on the window frame fixing plate 1, a limiting protrusion 101 is arranged at the bottom of the angle adjustment nail 10, a protrusion accommodating groove 80 matching the limiting protrusion 101 is arranged on the side of the positioning slider 8 facing the angle adjustment nail 10, a horizontal sliding groove 11 is arranged on the window frame fixing plate 1, and the width of the positioning slider 8 is greater than the The width of the transverse slide groove 11, the pin 7 passes through the main support plate 5 and the transverse slide groove 11 in sequence and then forms a movable hinge structure with the positioning slide block 8. Before adjustment, the length direction of the limiting protrusion 101 blocks the protrusion accommodating groove 80, and the stroke of the positioning slide block 8 is limited, and can only be opened to about 90 degrees at most. After adjustment, the limiting protrusion 101 can be inserted into the protrusion accommodating groove 80. At this time, the stroke of the positioning slide block 8 is no longer limited, and the main support plate 5 can move freely in the transverse slide groove 11, and cooperate with other connecting rods to achieve a large angle of 180 degrees. Of course, it should be noted that in this embodiment, a large range of 180 degrees is used as an example because the switching of these two angles is more meaningful and is not limited to the switching of the opening and closing angles of 90 degrees and 180 degrees.

[0020] The angle adjustment nail 10 includes a nail cap 103, a rotating column 102 and the limiting protrusion 101 which are arranged in sequence from top to bottom. A countersunk adjustment groove 104 is arranged on the top of the nail cap 103. The countersunk adjustment groove 104 is a hexagonal countersunk groove, a cross countersunk groove or a triangular countersunk groove. The present invention adopts a hexagonal countersunk groove. The rotating column 102 is rotatably matched with the window frame fixing plate 1 through a bearing. The limiting protrusion 101 is rectangular. The width of the limiting protrusion 101 is consistent with the width of the protrusion accommodating groove 80. The distance from the end of the positioning slider 8 to the angle adjustment nail 10 matches the stroke when the hinge is opened to 90 degrees.

[0021] In addition, a short support plate accommodating portion 30 is provided on the right side of the long support plate 3, and when closed, the short support plate 4 can be stored in the short support plate accommodating portion 30. A first clearance groove 51 is provided on the left side of the main support plate 5, and a second clearance groove 31 is provided on the left side of the long support plate 3. When the hinges are fully opened, the edges of the first clearance groove 51 and the second clearance groove 31 overlap to form a window sash avoidance angle, so that the window sash can be opened 180 degrees smoothly without being restricted.

[0022] The hinged part of the long support plate 3 and the window frame fixing plate 1 is a left-right eccentric adjusting screw 9. The corresponding position on the window frame fixing plate 1 for the left-right eccentric adjusting screw 9 is a longitudinal waist-shaped groove 12. The left-right eccentric adjusting screw 9 allows for fine adjustment after the hinge is installed to adjust the gap between the window sash and the window frame.

[0023] The content mentioned in the above embodiments is not a limitation to the present invention. Without departing from the inventive concept of the present invention, any obvious replacement is within the protection scope of the present invention. The present invention can be widely applied to the field of door and window systems.

Claims

1. A hinge angle adjustment mechanism, characterized in that: The hinge angle adjustment mechanism includes a window frame fixing plate (1), a positioning slider (8) slidably engaged with the window frame fixing plate (1), and an angle adjustment pin (10) rotatably provided on the window frame fixing plate (1). A limit projection (101) is provided at the bottom of the angle adjustment pin (10). On one side of the positioning slider (8) facing the angle adjustment pin (10), a projection receiving groove (80) matching the limit projection (101) is provided. Before adjustment, the limit projection (101) blocks the projection receiving groove (80). After adjustment, the limit projection (101) can be received into the projection receiving groove (80). The angle adjustment pin (10) includes a nail head (103), a rotating column (102), and the limit projection (101) arranged in sequence from top to bottom. A countersunk head adjustment groove (104) is provided at the top of the nail head (103). The rotating column (102) is rotatably engaged with the window frame fixing plate (1) through a bearing. The limit projection (101) is rectangular, and the width of the limit projection (101) is the same as the width of the projection receiving groove (80).

2. The hinge angle adjustment mechanism according to claim 1, wherein: The hinge angle adjustment mechanism further includes a main support plate (5) above the window frame fixing plate (1) and a pin (7) hinging the main support plate (5) and the positioning slider (8). A horizontal sliding groove (11) is provided on the window frame fixing plate (1). The width of the positioning slider (8) is greater than the width of the horizontal sliding groove (11). The pin (7) passes through the main support plate (5) and the horizontal sliding groove (11) in sequence and forms a movable hinge structure with the positioning slider (8).

3. The hinge angle adjustment mechanism according to claim 1, characterized in that: The distance from the end of the positioning slider (8) to the angle adjustment pin (10) matches the stroke when the hinge is opened to 90 degrees.

4. A general hidden hinge comprising the hinge angle adjustment mechanism according to claim 2, characterized in that: The universal hidden hinge further includes a window sash fixing plate (2), a long support plate (3), and a short support plate (4). One end of the main support plate (5) is slidably hinged on the horizontal sliding groove (11), and the other end is hinged to the end of the short support plate (4). The other end of the short support plate (4) is hinged to the middle of the window sash fixing plate (2). One end of the long support plate (3) is hinged to the end of the window frame fixing plate (1), and the other end is hinged to the front end of the window sash fixing plate (2). And the middle of the long support plate (3) is hinged to the middle of the main support plate (5). The window sash fixing plate (2) and the window frame fixing plate (1) can be relatively closed and opened to 180 degrees under the linkage of the long support plate (3), the short support plate (4), and the main support plate (5).

5. The general hidden hinge according to claim 4, characterized in that: A short support plate receiving portion (30) is provided on the right side of the long support plate (3). When closed, the short support plate (4) can be received into the short support plate receiving portion (30).

6. The general hidden hinge according to claim 4, characterized in that: A first relief groove (51) is provided on the left side of the main support plate (5), and a second relief groove (31) is provided on the left side of the long support plate (3). When the hinge is fully opened, the edges of the first relief groove (51) and the second relief groove (31) coincide to form a window sash avoidance angle.

7. The general hidden hinge according to claim 4, characterized in that: The hinged part of the long support plate (3) and the window frame fixing plate (1) is a left and right eccentric adjusting screw (9), and the corresponding part on the window frame fixing plate (1) to the left and right eccentric adjusting screw (9) is a longitudinal kidney-shaped groove (12).

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