Combined linkage hinge for sliding sash window

Abstract

The utility model discloses a combined linkage hinge for horizontal sliding window, including two hinges of upper, lower interval arrangement, and linkage assembly, hinge all includes two parallel guide rails, is equipped with the cross link between two guide rails, two fixed ends of cross link are connected with two guide rails, and two movable ends are connected with the slider on two guide rails, the linkage assembly includes first connecting rod, second connecting rod and third connecting rod, and the first connecting rod is connected with the second connecting rod between, and the second connecting rod is connected with the third connecting rod between through eccentric rivet. In this way, by the eccentric characteristic of eccentric rivet, the connecting angle or relative position of adjacent connecting rod can be fine adjusted through rotating rivet, avoids the size error produced in the hinge processing process and the assembly error when installing in situ, reduces the difficulty of installation debugging, improves construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of doors and windows, specifically to a linkage hinge for a combined sliding window. Background Technology

[0002] With the continuous advancement of the door and window industry and people's pursuit of a higher quality of life, window sash designs are trending towards larger sizes to adapt to modern architectural aesthetics and lighting requirements. To support these large window sashes, two independent hinges are typically installed on each side. These hinges work together to ensure stable opening and closing of the window sash. To avoid the window sash jamming or uneven force due to inconsistent movement of the two hinges on one side, a linkage component is usually added between the two hinges on the same side. This linkage component ensures that the two hinges can move synchronously. However, due to dimensional errors during hinge manufacturing and assembly errors during on-site installation, repeated adjustments are required during installation, especially when the window sash is large, which further increases the difficulty of installation and adjustment. Utility Model Content

[0003] Based on this, and in response to the aforementioned technical problems, this utility model provides a combined sliding window linkage hinge.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A combined sliding window hinge includes two hinges spaced apart vertically, and a linkage assembly for driving the two hinges to open or retract synchronously. Each hinge includes two parallel guide rails with a cross link between them. The two fixed ends of the cross link are connected to the two guide rails via first connectors, and the two movable ends are connected to sliders on the two guide rails via second connectors. The two guide rails of the two hinges are respectively mounted on the outer wall of the window frame and the inner wall of the window sash. The linkage assembly includes components connected sequentially from top to bottom. The first link, second link, and third link are connected. The upper end of the first link is connected to the movable end on the upper hinge side, and the lower end of the third link is connected to the movable end on the same side of the lower hinge. A clearance groove is provided on the first link corresponding to the position of the first connector. Multiple bushings are fitted on the second link. Each bushing is fixed to the window frame by an installation structure. The lower end of the first link and the upper end of the second link, as well as the lower end of the second link and the upper end of the third link, are connected by eccentric rivets. These eccentric rivets can finely adjust the connection angle of adjacent links.

[0006] By employing the above technical solution, a linkage assembly consisting of a first link, a second link, and a third link connects the upper and lower hinges on the same side of their moving ends. This allows the two sets of hinges to achieve completely synchronized opening and closing movements under the drive of the linkage assembly, ensuring that the window sash maintains stable movement throughout its entire opening and closing stroke. Specifically, a clearance groove adapted to the connecting parts is provided on the first link, providing ample space for the connecting parts during hinge operation and ensuring smooth transmission of all components. Furthermore, multiple bushings fitted on the second link are fixed to the window frame through an installation structure, forming multi-point support. This improves the overall rigidity of the linkage assembly, preventing the second link from bending and deforming due to long-term stress, further enhancing the overall stability and reliability of the hinge linkage structure. In addition, the connection between the first link and the second link, and the connection between the second link and the third link, are all connected with eccentric rivets. In this way, by utilizing the eccentric characteristics of the eccentric rivets, the connection angle or relative position of adjacent links can be finely adjusted by rotating the rivets. This avoids dimensional errors caused during hinge processing and assembly errors during on-site installation, reduces the difficulty of installation and debugging, and improves construction efficiency.

[0007] In a specific embodiment of this utility model: the eccentric rivet includes a rotating column and an eccentric rod, which are eccentrically connected; both ends of the second connecting rod are provided with first holes for connecting to the rotating column, and the lower end of the first connecting rod and the upper end of the third connecting rod are provided with second holes for connecting to the eccentric rod. Thus, the rotating column of the eccentric rivet is connected to the first hole. When the eccentric rivet rotates, because the rotating column and the eccentric rod are eccentrically connected (i.e., their axes do not coincide), the eccentric rod rotates eccentrically, causing changes in the connection angle between the lower end of the first connecting rod and the upper end of the second connecting rod, and the connection angle between the upper end of the third connecting rod and the lower end of the second connecting rod. This angle adjustment causes the positions of the first and third connecting rods relative to the guide rail to shift, thereby adjusting the positions of the upper and lower cross connecting rods. This allows for rapid adjustment of the installation state of the hinge linkage structure, improving the efficiency of on-site installation.

[0008] In a specific embodiment of this utility model: the installation structure includes a vertical groove and a locking screw located inside the bushing through which the second connecting rod can pass. The side walls on both sides of the vertical groove are respectively provided with a through hole and a countersunk hole. The second connecting rod is provided with a through hole at the position corresponding to the countersunk hole. The tip of the locking screw passes through the through hole, the through hole and the countersunk hole in sequence to fix the bushing to the window frame, and the screw head of the locking screw is completely recessed into the countersunk hole.

[0009] The existing technology uses bolts to fix the bushing, requiring a travel groove in the connecting rod, which reduces the overall structural strength of the second connecting rod. To address this, by providing connecting through holes and countersunk holes on the side walls of the bushing's vertical groove, and a corresponding through hole on the second connecting rod at the countersunk hole, during assembly, the locking screw passes through the through hole, through hole, and countersunk hole in sequence to fix the bushing to the upper part of the window frame. The screw head of the locking screw is completely recessed into the countersunk hole, achieving synchronous linkage between the upper and lower hinges without interfering with the movement of the second connecting rod. Furthermore, the second connecting rod can be cut to the required length according to the on-site installation conditions to accommodate different window sash sizes.

[0010] In a specific embodiment of this utility model: the guide rail has a groove for constraining the sliding of the slider, and the cross-section of the groove is C-shaped.

[0011] In a specific embodiment of this utility model: the cross linkage includes a first folding rod and a second folding rod that are cross-connected, and the first folding rod and the second folding rod are connected by a rotating shaft.

[0012] In summary, this invention uses a linkage assembly consisting of a first link, a second link, and a third link to connect the upper and lower hinges. This allows the two hinges to open or retract in complete synchronization under the drive of the linkage assembly, ensuring the window sash maintains stable movement throughout its opening and closing stroke. Furthermore, the connections between the first and second links, and between the second and third links, are made using eccentric rivets. This utilizes the eccentricity of the rivets to fine-tune the connection angle or relative position of adjacent links by rotating the rivets, avoiding dimensional errors during hinge manufacturing and assembly errors during on-site installation. This reduces the difficulty of installation and debugging, and improves construction efficiency. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of a combined sliding window linkage according to the present invention;

[0015] Figure 2 This is a schematic diagram of the hinge linkage structure of this utility model;

[0016] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0017] Figure 4 yes Figure 1 Enlarged view at point B in the middle;

[0018] Figure 5 yes Figure 1 Enlarged view at point C;

[0019] Figure 6 yes Figure 2 Sectional view at point DD;

[0020] Figure 7 This is a structural schematic diagram of the eccentric rivet of this utility model;

[0021] Figure 8 yes Figure 2 Sectional view at EE. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 and Figure 2 As shown, this utility model is a combined sliding window linkage hinge, installed as follows: Figure 1 The sliding window sash 9 includes two hinges 10 spaced apart vertically. Each hinge 10 includes two parallel guide rails 11, with a cross link 12 between them. The sliding window 9 includes a window frame 902 and a window sash 901 mounted on the window frame 902. The two guide rails 11 of the two hinges 10 are respectively mounted on the outer wall of the window frame 902 and the inner wall of the window sash 901. The two fixed ends of the cross link 12 are connected to the two guide rails 11, and the two movable ends are connected to sliders 13 on the two guide rails 11. Each guide rail 11 has a groove 14 that constrains the sliding of the slider 13; the groove has a C-shaped cross-section.

[0024] like Figure 2 , Figure 3 and Figure 5 As shown, the cross linkage 12 includes a first folded rod 121 and a second folded rod 122 connected in an "X" shape. The first folded rod 121 and the second folded rod 122 are connected by a rotating shaft 123. Here, the side of the first folded rod 121 and the second folded rod 122 above the rotating shaft 123 are the two movable ends of the cross linkage 12, and the side of the first folded rod 121 and the second folded rod 122 below the rotating shaft 123 are the two fixed ends of the cross linkage 12. The two fixed ends of the cross linkage 12 are connected to the guide rail 11 respectively through a first connector 15. The two movable ends of the cross linkage 12 are connected to the two sliders 13 respectively through a second connector 16. Both the first connector 15 and the second connector 16 can be common connectors such as screws, pins, and rivets.

[0025] like Figures 1-5 As shown, it also includes a linkage assembly 20 for driving the two hinges 10 to open or retract synchronously. This linkage assembly includes a first link 21, a second link 22, and a third link 23 connected sequentially from top to bottom. The upper end of the first link 21 is connected to the movable end on one side of the upper hinge 10. The lower end of the third link 23 is connected to the movable end on the same side of the lower hinge 10. A clearance groove 211 is provided on the first link 21 at a position corresponding to the first connecting member 15. Thus, when the linkage assembly 20 moves along with the two sliders 13 on the same side, the clearance groove 211 ensures that the first link 21 of the linkage assembly 20 will not interfere with the first connecting member 15 on the same side when moving up and down. Here, the first link 21, the second link 22, and the third link 23 are all made of aluminum.

[0026] In this embodiment, the lower end of the first connecting rod 21 and the upper end of the second connecting rod 22, as well as the lower end of the second connecting rod 22 and the upper end of the third connecting rod 23, are connected by eccentric rivets 30. By utilizing the eccentric characteristic of the eccentric rivets, the connection angle or relative position of adjacent connecting rods can be finely adjusted by rotating the rivets. This avoids dimensional errors caused during hinge manufacturing and assembly errors during on-site installation, reducing the difficulty of installation and debugging and improving construction efficiency.

[0027] like Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, in this embodiment, the eccentric rivet 30 includes a rotating column 31 and an eccentric rod 32. The rotating column 31 and the eccentric rod 32 are eccentrically connected. First holes 33 for connecting to the rotating column 31 are provided at both ends of the second connecting rod 22. Second holes 34 for connecting to the eccentric rod 32 are provided at the lower end of the first connecting rod 21 and the upper end of the third connecting rod 23. Thus, the rotating column is connected to the first holes. When the eccentric rivet rotates, because the rotating column and the eccentric rod are eccentrically connected (i.e., their center lines do not coincide), the eccentric rod rotates eccentrically. This causes changes in the connection angle between the lower end of the first connecting rod and the upper end of the second connecting rod, and the connection angle between the upper end of the third connecting rod and the lower end of the second connecting rod. This angle adjustment causes the positions of the first and third connecting rods relative to the guide rail to shift, thereby adjusting the positions of the upper and lower cross connecting rods and adjusting the installation state of the hinge linkage structure, thus improving the adjustment efficiency of on-site installation.

[0028] like Figure 2 , Figure 4 and Figure 8As shown, in this embodiment, multiple bushings 24 are fitted onto the second connecting rod 22. Each bushing 24 is fixed to the window frame 902 by an installation structure. In this way, the multiple bushings 24 fitted onto the second connecting rod 22 form a multi-point support by fixing them to the window frame 902 through the installation structure, which improves the overall rigidity of the linkage assembly, avoids bending deformation of the second connecting rod 22 due to long-term stress, and further enhances the overall stability and reliability of the hinge linkage structure.

[0029] like Figure 8 As shown, in this embodiment, the mounting structure includes a vertical groove 25 inside the bushing 24 through which the second connecting rod 22 passes, and a locking screw. Through holes 26 and countersunk holes 27 are respectively formed on the side walls of the vertical groove 25. The through holes 26 and countersunk holes 27 are coaxially arranged. A through hole 28 is formed on the second connecting rod 22 at the position corresponding to the countersunk hole 27. During assembly, the locking screw passes through the through holes 26, through holes 28, and countersunk holes 27 in sequence to fix the bushing 24 to the outer wall of the window frame 902. The screw head of the locking screw is completely recessed into the countersunk hole 27, without protruding, to ensure that it does not interfere with the upward and downward sliding of the second connecting rod 22. Compared with the prior art, the second connecting rod 22 only has through holes, without the need for elongated travel grooves, and the overall structural strength of the second connecting rod is not reduced. Furthermore, the second connecting rod can be cut to the required length according to the on-site installation conditions to accommodate window sashes of different specifications. Grooves 221 are respectively opened on both sides of the outer surface of the second connecting rod 22.

[0030] In summary, this invention uses a linkage assembly consisting of a first link, a second link, and a third link to connect the upper and lower hinges. This allows the two hinges to open or retract in complete synchronization under the drive of the linkage assembly, ensuring the window sash maintains stable movement throughout its opening and closing stroke. Furthermore, the connections between the first and second links, and between the second and third links, are made using eccentric rivets. This utilizes the eccentricity of the rivets to fine-tune the connection angle or relative position of adjacent links by rotating the rivets, avoiding dimensional errors during hinge manufacturing and assembly errors during on-site installation. This reduces the difficulty of installation and debugging, and improves construction efficiency.

[0031] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A combined sliding window linkage, comprising two hinges spaced apart vertically, and a linkage assembly for driving the two hinges to open or retract synchronously; each hinge includes two parallel guide rails, with a cross link between the two guide rails, the two fixed ends of the cross link being connected to the two guide rails respectively via a first connector, and the two movable ends being connected to sliders on the two guide rails respectively via a second connector; the two guide rails of the two hinges are respectively mounted on the outer wall of the window frame and the inner wall of the window sash; the linkage assembly includes, from top to bottom, sequentially connected... The first, second, and third connecting rods are connected. The upper end of the first connecting rod is connected to the movable end on one side of the upper hinge, and the lower end of the third connecting rod is connected to the movable end on the same side of the lower hinge. A clearance groove is provided on the first connecting rod corresponding to the position of the first connecting piece. Multiple bushings are fitted on the second connecting rod. Each bushing is fixed to the window frame by an installation structure. The lower end of the first connecting rod and the upper end of the second connecting rod, as well as the lower end of the second connecting rod and the upper end of the third connecting rod, are connected by eccentric rivets. These eccentric rivets can finely adjust the connection angle of adjacent connecting rods.

2. The linkage hinge for the combined sliding window according to claim 1, characterized in that, The eccentric rivet includes a rotating column and an eccentric rod, which are eccentrically connected; both ends of the second connecting rod are provided with a first hole for connecting with the rotating column, and the lower end of the first connecting rod and the upper end of the third connecting rod are provided with a second hole for connecting with the eccentric rod.

3. The linkage hinge for the combined sliding window according to claim 1, characterized in that, The mounting structure includes a vertical groove inside the bushing through which the second connecting rod can pass and a locking screw. The side walls on both sides of the vertical groove are respectively provided with a through hole and a countersunk hole. The second connecting rod is provided with a through hole at the position corresponding to the countersunk hole. The tip of the locking screw passes through the through hole, the through hole and the countersunk hole in sequence to fix the bushing to the window frame, and the screw head of the locking screw is completely recessed into the countersunk hole.

4. The linkage hinge for the combined sliding window according to claim 1, characterized in that, Each guide rail has a groove that constrains the sliding of the slider, and the groove has a C-shaped cross-section.

5. The linkage hinge for the combined sliding window according to claim 1, characterized in that, The cross linkage includes a first folded rod and a second folded rod that are cross-connected, and the first folded rod and the second folded rod are connected by a rotating shaft.

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