Friction-force-adjustable side-hung hinge for large-load-bearing curtain wall profile

Abstract

The utility model discloses a side-hung hinge for a friction-force-adjustable large-load-bearing curtain wall profile. The side-hung hinge comprises a bottom plate, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a sliding block. According to the hinge, the bottom plate, the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod and the sliding block are arranged, the bottom plate is connected with the second connecting rod, and a first sliding groove and a second sliding groove are formed in the bottom plate, so that the bottom plate is connected with the fourth connecting rod through the first sliding groove and the sliding block and connected with the third connecting rod through the second sliding groove; then the second connecting rod is connected with the fourth connecting rod, and the third connecting rod is connected with the first connecting rod, so that a five-connecting-rod structure is formed, the strength of the hinge is improved, and the whole structure is practical, reliable and firm; and two limiting points are formed and are used for positioning the maximum opening angle of the hinge.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware, in particular to a flat hinge for a large load-bearing curtain wall profile with adjustable friction. Background Art

[0002] A hinge is a mechanical device used to connect two solid bodies and allow them to rotate relative to each other. A hinge can be made of movable components or foldable materials. Hinges can be used in doors and windows, such as curtain wall profile windows. The existing curtain wall profile windows on the market are limited by their own structure. The flat hinges they use are not strong enough to bear the load, and are prone to deformation after a period of use. They are also prone to damage due to poor positioning after opening to the maximum angle, and lack the friction adjustment function. The announcement number is CN216690730U, which discloses a window hinge, including a first fixing plate fixed to a window frame and a second fixing plate fixed to a window sash, the corresponding sides of the window frame and the window sash are respectively provided with C-shaped grooves, the second fixing plate is hinged to the first fixing plate through a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are rotatably arranged between the first fixing plate and the second fixing plate, the first fixing plate and the second fixing plate are respectively connected to the corresponding C-shaped grooves through movable buckles, the movable buckles include a bottom plate sliding in the C-shaped groove and a connecting portion protruding from the center of the front of the bottom plate, the center of the bottom plate is provided with a tapered hole penetrating the connecting portion, a T-shaped screw is arranged in the tapered hole, and T-shaped nuts connected to the T-shaped screw are respectively arranged in the first fixing plate and the second fixing plate. The overall strength of the hinge is insufficient and the adjustability is low. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model aims to provide a flat hinge for curtain wall profiles with high strength, adjustable friction and large load-bearing capacity.

[0004] To achieve the above-mentioned purpose, the solution provided by the utility model is: a flat hinge for a large load-bearing curtain wall profile with adjustable friction, comprising a base plate, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, and a sliding block, the base plate is provided with a first sliding groove and a second sliding groove, the sliding block is slidably connected in the first sliding groove, one end of the second connecting rod is hinged to the middle part of the first connecting rod, and the other end of the second connecting rod is hinged to the end part of the base plate, one end of the fourth connecting rod is hinged to the middle part of the second connecting rod, and the other end of the fourth connecting rod is hinged to the sliding block, one end of the third connecting rod is hinged to the middle part of the base plate, and the other end of the third connecting rod is hinged to the end part of the first connecting rod, wherein the middle part of the third connecting rod slides on the second sliding groove.

[0005] The beneficial effects of the present utility model are as follows: The overall strength of the hinge is improved. By arranging a bottom plate, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, and a sliding block, the bottom plate is used to connect the second connecting rod, and the first sliding groove and the second sliding groove are formed on the bottom plate, so that the bottom plate is connected to the fourth connecting rod through the first sliding groove and the sliding block, and the bottom plate is connected to the third connecting rod through the second sliding groove. Then, the second connecting rod is connected to the fourth connecting rod, and the third connecting rod is connected to the first connecting rod, thus forming a five-link structure, which improves the strength of the hinge. The overall structure is practical, reliable, and firm. At the same time, the sliding block connected to the fourth connecting rod slides on the first sliding groove, and the middle part of the third connecting rod slides on the second sliding groove, constituting two limit points for positioning the maximum opening angle of the hinge.

[0006] Further, the sliding block includes a first friction block and a second friction block. The first friction block is arranged on the top surface of the bottom plate, the second friction block is arranged on the bottom surface of the bottom plate, and an adjusting screw is connected between the first friction block and the second friction block. After the present utility model adopts the above structure, the first friction block and the second friction block respectively slide on the bottom plate by friction, and by screwing the adjusting screw, the tightness between the first friction block and the second friction block is adjusted to realize the adjustment of the opening and closing force when the hinge is opened and closed.

[0007] Further, an installation part is formed on the first friction block, and the end part of the fourth connecting rod is hinged to the installation part.

[0008] Further, a reinforcing part is formed by bending the end part of the second friction block upwards, and the reinforcing part passes through the first sliding groove and fits against the end part of the first friction block. After the present utility model adopts the above structure, the connection between the first friction block and the second friction block can be aligned up and down, and the connection is more stable.

[0009] Further, a recessed part is formed by bending the middle part of the bottom plate, and the recessed part is used to accommodate the fourth connecting rod. A first boss is formed on the recessed part, and the first sliding groove is formed on the first boss and extends along the length direction of the bottom plate. After the present utility model adopts the above structure, the first friction block and the second friction block respectively slide on the top surface and the bottom surface of the first boss by friction.

[0010] Further, a second boss is formed on the second connecting rod. After the present utility model adopts the above structure, a through hole is formed in the second boss to connect with the fourth connecting rod.

[0011] Further, the second sliding groove is in an arc structure.

[0012] Further, a first rivet is arranged in the second sliding groove, and the middle part of the third connecting rod is connected by the first rivet.

[0013] Further, a limit rivet is provided on the first link. When the hinge is closed, the limit rivet abuts against and presses the third link to prevent the hinge from reopening. After adopting the above structure in the present utility model, when an external force is applied to the first link in the closing direction after the hinge is closed, the limit rivet will push against the third link to prevent the third link from opening, thereby preventing the hinge from reopening and ensuring the tightness of the hinge to improve the sealing performance of the window.

[0014] Further, the first link and the second link, the second link and the bottom plate, the second link and the fourth link, the fourth link and the sliding block, the third link and the bottom plate, and the third link and the first link are respectively connected by second rivets.

[0015] Further, washers are respectively provided between the first link and the second link, between the second link and the bottom plate, between the second link and the fourth link, between the third link and the bottom plate, and between the third link and the first link. After adopting the above structure in the present utility model, the friction between the links can be reduced, thereby reducing the overall damage.

[0016] Further, a connecting plate is formed by bending the end of the first link, and the connecting plate is perpendicular to the first link. Description of the Drawings

[0017] Figure 1 is a three-dimensional view of the overall structure of the present utility model Figure 1 (open state).

[0018] Figure 2 is a three-dimensional view of the overall structure of the present utility model Figure 2 (closed state).

[0019] Figure 3 is an exploded view of the overall structure of the present utility model.

[0020] Figure 4 is a top view of the present utility model Figure 1 (open state).

[0021] Figure 5 is a top view of the present utility model Figure 2 (closed state).

[0022] Figure 6 is Figure 5 the A-A cross-sectional view in

[0023] Figure 7 is a top view of the present utility model Figure 3 (closed state).

[0024] Figure 8 is Figure 7 the B-B cross-sectional view in

[0025] Among them, 1 is a base plate, 11 is a first sliding groove, 12 is a second sliding groove, 121 is a first rivet, 13 is a recessed portion, 14 is a first boss, 2 is a first connecting rod, 21 is a limiting rivet, 22 is a connecting plate, 3 is a second connecting rod, 31 is a second boss, 4 is a third connecting rod, 5 is a fourth connecting rod, 61 is a first friction block, 611 is a mounting portion, 62 is a second friction block, 621 is a reinforcing portion, 63 is an adjusting screw, 71 is a second rivet, and 72 is a washer. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] See attached Figure 1 To Attachment Figure 8 As shown, a flat hinge for an adjustable friction and large load-bearing curtain wall profile comprises a base plate 1, a first connecting rod 2, a second connecting rod 3, a third connecting rod 4, a fourth connecting rod 5, and a sliding block. The base plate 1 is provided with a first sliding groove 11 and a second sliding groove 12. The first sliding groove 11 is slidably connected to the sliding block. One end of the second connecting rod 3 is hinged to the middle part of the first connecting rod 2, and the other end of the second connecting rod 3 is hinged to the end of the base plate 1. One end of the fourth connecting rod 5 is hinged to the middle part of the second connecting rod 3, and the other end of the fourth connecting rod 5 is hinged to the sliding block. One end of the third connecting rod 4 is hinged to the middle part of the base plate 1, and the other end of the third connecting rod 4 is hinged to the end of the first connecting rod 2. The middle part of the third connecting rod 4 slides on the second sliding groove 12, and the second sliding groove 12 is an arc-shaped structure.

[0029] In this embodiment, the sliding block includes a first friction block 61 and a second friction block 62. The first friction block 61 is disposed on the top surface of the bottom plate 1, and the second friction block 62 is disposed on the bottom surface of the bottom plate 1. An adjusting screw 63 is connected between the first friction block 61 and the second friction block 62. A reinforcing portion 621 is formed by bending the end of the second friction block 62 upward. The reinforcing portion 621 passes through the first sliding groove 11 and fits against the end of the first friction block 61.

[0030] In this embodiment, an installation portion 611 is formed on the first friction block 61, and the end of the fourth connecting rod 5 is hinged to the installation portion 611.

[0031] In this embodiment, a recessed portion 13 is formed by bending the middle of the bottom plate 1. The recessed portion 13 is used to accommodate the fourth connecting rod 5. A first boss 14 is formed on the recessed portion 13, and a first sliding groove 11 is formed on the first boss 14. The first sliding groove 11 extends along the length direction of the bottom plate 1. Specifically, the first friction block 61 is disposed on the top surface of the first boss 14, and the second friction block 62 is disposed on the bottom surface of the first boss 14. The fourth connecting rod 5 is connected to the second friction block 62 by passing a second rivet 71 through the installation portion 611 of the first friction block 61. Thus, the second rivet 71 slides on the first sliding groove 11.

[0032] In this embodiment, the second sliding groove 12 has an arc-shaped structure. A first rivet 121 is disposed in the second sliding groove 12, and the middle of the third connecting rod 4 is connected to the first rivet 121.

[0033] In this embodiment, a limit rivet 21 is disposed on the first connecting rod 2. When the hinge is closed, the limit rivet 21 abuts against the third connecting rod 4 to prevent the hinge from reopening.

[0034] In this embodiment, a second boss 31 is formed on the second connecting rod 3.

[0035] In this embodiment, the first connecting rod 2 and the second connecting rod 3, the second connecting rod 3 and the bottom plate 1, the second connecting rod 3 and the fourth connecting rod 5, the fourth connecting rod 5 and the sliding block, the third connecting rod 4 and the bottom plate 1, and the third connecting rod 4 and the first connecting rod 2 are respectively connected by second rivets 71.

[0036] In this embodiment, washers 72 are respectively disposed between the first connecting rod 2 and the second connecting rod 3, between the second connecting rod 3 and the bottom plate 1, between the second connecting rod 3 and the fourth connecting rod 5, between the third connecting rod 4 and the bottom plate 1, and between the third connecting rod 4 and the first connecting rod 2.

[0037] In this embodiment, a connecting plate 22 is formed by bending the end of the first connecting rod 2. The connecting plate 22 is perpendicular to the first connecting rod 2. The connecting plate 22 is connected to the window sash, and the bottom plate 1 is connected to the window frame.

[0038] In this embodiment, the hinge of this embodiment is a hinge with a five-link structure. The bottom plate 1 is connected to the third link 4, the fourth link 5, and the second link 3 respectively by rivets. Then, the end of the fourth link 5 is connected to the second link 3. Finally, the first link 2 is connected to the third link 4 and the second link 3 together. The connection between the fourth link 5 and the bottom plate 1 is achieved by the combination of the first friction block 61 and the second friction block 62 being clamped on the first sliding groove 11 of the bottom plate 1;

[0039] When the hinge is opened, the first link 2 is driven to swing by an external force. The first link 2 swings to drive the third link 4 and the second link 3 to swing. The third link 4 slides in the second sliding groove 12 through the first rivet 121 to guide the swing of the third link 4. The second link 3 swings to drive the fourth link 5 to swing. The fourth link 5 swings to push the sliding block to slide in the first sliding groove 11 until the hinge of this embodiment is opened to the maximum angle, the sliding block moves to the end of the first sliding groove 11, and the first rivet 121 moves to the end of the second sliding groove 12. In this way, the positioning of the first rivet 121 in the second sliding groove 12 and the combination of the first friction block 61 and the second friction block 62 in the first sliding groove 11 constitute two limit points, thus improving the strength of the hinge and also serving as the positioning of the maximum opening angle of the hinge.

[0040] At the same time, after the hinge of this embodiment is closed, when an external force is applied to the first link 2 in the closing direction, the limit rivet 21 on the first link 2 will abut and press against the side wall of the third link 4 to limit the opening of the third link 4, thereby restricting the hinge from opening back and ensuring the tightness of the hinge and improving the sealing performance of the window.

[0041] When it is necessary to adjust the opening and closing force of the hinge of this embodiment, turn the adjusting screw 63 with a screwdriver to drive the first friction block 61 to approach or move away from the second friction block 62, thereby increasing or decreasing the friction between the first friction block 61 and the top surface of the first boss 14, and the friction between the second friction block 62 and the bottom surface of the first boss 14, so as to achieve the adjustment of the opening and closing force of the hinge.

[0042] The above-described embodiments are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any person skilled in the art can make more possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present invention. Therefore, all equivalent changes made according to the idea of the present invention without departing from the content of the technical solution of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A flat hinge for a large load-bearing curtain wall profile with adjustable friction, comprising a base plate (1), a first connecting rod (2), a second connecting rod (3), a third connecting rod (4), a fourth connecting rod (5), and a sliding block, characterized in that: The bottom plate (1) is provided with a first sliding groove (11) and a second sliding groove (12). The sliding block is slidably connected in the first sliding groove (11). One end of the second connecting rod (3) is hinged to the middle of the first connecting rod (2), and the other end of the second connecting rod (3) is hinged to the end of the bottom plate (1). One end of the fourth connecting rod (5) is hinged to the middle of the second connecting rod (3), and the other end of the fourth connecting rod (5) is hinged to the sliding block. One end of the third connecting rod (4) is hinged to the middle of the bottom plate (1), and the other end of the third connecting rod (4) is hinged to the end of the first connecting rod (2). Among them, the middle of the third connecting rod (4) slides on the second sliding groove (12).

2. The adjustable friction and large load-bearing flat hinge for curtain wall profiles according to claim 1, characterized in that: The sliding block includes a first friction block (61) and a second friction block (62). The first friction block (61) is arranged on the top surface of the bottom plate (1), and the second friction block (62) is arranged on the bottom surface of the bottom plate (1). An adjusting screw (63) is connected between the first friction block (61) and the second friction block (62).

3. The adjustable friction and large load-bearing flat hinge for curtain wall profiles according to claim 2, characterized in that: The end of the second friction block (62) is bent upward to form a reinforcing part (621). The reinforcing part (621) passes through the first sliding groove (11) and then fits against the end of the first friction block (61).

4. An in-swing hinge for an adjustable friction and large load-bearing curtain wall profile according to claim 1, characterized in that: A recessed part (13) is formed by bending the middle of the bottom plate (1). The recessed part (13) is used to accommodate the fourth connecting rod (5). A first boss (14) is formed on the recessed part (13), and the first sliding groove (11) is opened on the first boss (14). The first sliding groove (11) extends along the length direction of the bottom plate (1).

5. An in-swing hinge for an adjustable friction and large-load-bearing curtain wall profile according to claim 1, characterized in that: The second sliding groove (12) has an arc-shaped structure.

6. An in-swing hinge for an adjustable friction and large load-bearing curtain wall profile according to claim 1, characterized in that: A first rivet (121) is arranged in the second sliding groove (12). The first rivet (121) connects the middle of the third connecting rod (4).

7. An in-swing hinge for an adjustable-friction large-load-bearing curtain wall profile according to claim 1, characterized in that: A limit rivet (21) is arranged on the first connecting rod (2). When the hinge is closed, the limit rivet (21) abuts against and presses the third connecting rod (4) to prevent the hinge from reopening.

8. An adjustable friction large-load curtain wall profile used for a casement hinge, characterized in that: The first connecting rod (2) and the second connecting rod (3), the second connecting rod (3) and the bottom plate (1), the second connecting rod (3) and the fourth connecting rod (5), the fourth connecting rod (5) and the sliding block, the third connecting rod (4) and the bottom plate (1), and the third connecting rod (4) and the first connecting rod (2) are respectively connected by second rivets (71).

9. An adjustable friction large load-bearing curtain wall profile used for a casement hinge, characterized in that: Washers (72) are respectively arranged between the first connecting rod (2) and the second connecting rod (3), the second connecting rod (3) and the bottom plate (1), the second connecting rod (3) and the fourth connecting rod (5), the third connecting rod (4) and the bottom plate (1), and the third connecting rod (4) and the first connecting rod (2).

10. The adjustable friction and large load-bearing flat hinge for curtain wall profiles according to claim 1, characterized in that: A connecting plate (22) is formed by bending the end of the first connecting rod (2). The connecting plate (22) is perpendicular to the first connecting rod (2).

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