Single-sliding-block crossed type door and window hinge

Abstract

The invention discloses a single-slider cross type door and window hinge which comprises a base, a short arm, a supporting arm, a long arm and a reinforcing arm, a main slider is slidably connected to the base in the length direction of the base, one end of the short arm is rotatably connected to the rear portion of the main slider, and the other end of the short arm is rotatably connected to the front portion of the supporting arm; one end of the long arm is rotationally connected to the rear portion of the supporting arm, the other end of the long arm is rotationally connected to the rear portion of the base, the rear end of the reinforcing arm is rotationally connected to the long arm, the front portion of the reinforcing arm is rotationally connected to the middle of the short arm, and the front end of the reinforcing arm is further rotationally connected with a secondary sliding block. The secondary sliding block is connected to the main sliding block in a sliding mode in the length direction of the main sliding block. The device has the advantages of being not prone to sand dust inclusion and more stable in motion trail.

Description

Technical Field

[0001] The present invention relates to the technical field of door and window hinges, and in particular to a single-slider cross-type door and window hinge. Background Art

[0002] Many existing cross-hinges, such as the one disclosed in Chinese Patent Publication No. CN215255445U, typically have the ends of the reinforcing arm and the short arm pivotally connected to two separate sliders, which then slide together within a slide groove in the base. This structure, which includes two or more main sliding components, is referred to as a "dual-slider structure" or a "multi-slider structure."

[0003] However, the inventors have found in practice that the above-mentioned "double slider structure" has the following inherent defects in actual application:

[0004] 1. Poor motion coordination and unstable trajectory: Because the two sliders are separate entities, their movement within the chute is entirely dependent on the push-pull action of the linkage. Due to factors such as accumulated machining tolerances, assembly errors, and local unevenness in the chute or sliders, it's difficult for the two sliders to achieve completely consistent motion resistance. This can lead to speed differences or slight start-stop jerks during movement, a phenomenon known as "motion asynchrony."

[0005] 2. Complex structure, prone to dust and dirt accumulation: The dual-slider design increases the number of independent components and complicates the internal structure of the base chute. The gap between the two sliders provides ample space for external dust, impurities in rainwater, and debris left over from construction, making it easy for dust and sand to be trapped between the two sliders.

[0006] 3. Uneven bearing stress, posing a safety hazard: Due to asynchronous movement, the force transmitted to the two sliders by the connecting rod mechanism is difficult to be evenly distributed.

[0007] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and the present invention is made based on this situation. Summary of the Invention

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a door and window hinge with a single slider, which is not easily trapped by sand and dust and has a more stable movement trajectory.

[0009] The present invention is achieved through the following technical solutions:

[0010] In order to solve the above technical problems, the present invention provides a single-slider cross-type door and window hinge, including a base, a short arm, a support arm, a long arm and a reinforcing arm, wherein the base is slidably connected to a main slider along its length direction, one end of the short arm is rotatably connected to the rear part of the main slider, the other end of the short arm is rotatably connected to the front part of the support arm, one end of the long arm is rotatably connected to the rear part of the support arm, the other end of the long arm is rotatably connected to the rear part of the base, the rear end of the reinforcing arm is rotatably connected to the long arm, the front part of the reinforcing arm is rotatably connected to the middle part of the short arm, and the front end of the reinforcing arm is also rotatably connected to a secondary slider, and the secondary slider is slidably connected to the main slider along the length direction of the main slider.

[0011] In order to further solve the technical problem to be solved by the present invention, in a single-slider cross-type door and window hinge provided by the present invention, the reinforcing arm is located below the short arm and supports the short arm from below.

[0012] In order to further solve the technical problem to be solved by the present invention, the present invention provides a single-slider cross-type door and window hinge, in which a sliding hole is provided on the main slider, and the secondary slider is fitted in the sliding hole.

[0013] In order to further solve the technical problem to be solved by the present invention, in a single-slider cross-type door and window hinge provided by the present invention, the secondary slider is a rivet with a cover at the lower end.

[0014] In order to further solve the technical problem to be solved by the present invention, the present invention provides a single-slider cross-type door and window hinge, in which a groove is provided on the base for avoiding the secondary slider and enhancing the structural strength.

[0015] In order to further solve the technical problem to be solved by the present invention, the present invention provides a single-slider cross-type door and window hinge, in which a first sliding groove is provided on a long side of the base, and a first ridge extending upward is provided on a side corresponding to the main slider, and the first ridge can be slidably embedded in the first sliding groove.

[0016] In order to further solve the technical problem to be solved by the present invention, in a single-slider cross-type door and window hinge provided by the present invention, the first sliding groove is formed as one piece by bending the side of the base upward, inward and then downward.

[0017] In order to further solve the technical problem to be solved by the present invention, the present invention provides a single-slider cross-type door and window hinge, in which the two long sides of the base are each provided with a second sliding groove, and the second sliding groove is formed by first bending the two long sides of the base upward and then bending inward, and the lower part of both sides of the main slider is provided with a second ridge, and the second ridge can be slidably embedded in the corresponding second sliding groove.

[0018] In order to further solve the technical problem to be solved by the present invention, the present invention provides a single-slider cross-type door and window hinge, in which a cover plate is provided on the top of the main slider, and the two side edges of the cover plate protrude outward and exceed the corresponding second ridges, so that the cross-section of the main slider is I-shaped.

[0019] In order to further solve the technical problem to be solved by the present invention, in a single-slider cross-type door and window hinge provided by the present invention, an avoidance gap for avoiding the hinge axis between the short arm and the main slider is opened on the reinforcing arm.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The present invention abandons the "double slider" or "multi-slider" structure that relies on multiple independent sliders in the prior art, and innovatively adopts the design of "single main slider with built-in secondary slider". Specifically, it connects and guides the reinforcing arm that originally required an independent slider to drive through a secondary slider that can slide on the main slider itself, thereby integrating all sliding functions on a main slider. First, this structure fundamentally solves the problems of unstable trajectory, jamming and abnormal noise caused by asynchronous movement of the double sliders, ensuring the stability and smoothness of the opening and closing process of doors and windows; second, this structure significantly reduces the problem of accumulation and entrainment of sand, gravel and dirt, thereby improving the durability and environmental adaptability of the hinge; third, the overall structure is more compact, the force transmission is more concentrated, and the lower support design of the reinforcing arm effectively improves the overall load-bearing capacity and stability of the hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of embodiment 1;

[0024] Figure 2 It is an exploded schematic diagram of embodiment 1;

[0025] Figure 3 is a schematic diagram of the three-dimensional structure of embodiment 2;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the main slider in the second embodiment. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] See also Figures 1 to 4The present invention provides a single-slider cross-type door and window hinge, the core of which is to adopt a structure of a single main slider and a secondary slider to solve the problems of unstable movement and easy dust accumulation caused by the double-slider structure in the prior art.

[0029] like Figure 1 and Figure 3 As shown, the door and window hinge of this embodiment includes a base 1 fixed to the window frame (not shown), and a connecting rod assembly for connecting to the window sash (not shown) and sliding on the base 1. The connecting rod assembly includes a main slider 6 and a connecting rod mechanism consisting of a short arm 2, a support arm 3, a long arm 4, and a reinforcing arm 5.

[0030] The specific connection relationship is as follows: Main slider 6 is slidably mounted on base 1, allowing reciprocating motion along its length. One end of short arm 2 is pivotally connected to the rear of main slider 6 via a hinge shaft; the other end of short arm 2 is pivotally connected to the front of support arm 3; one end of long arm 4 is pivotally connected to the rear of support arm 3, and the other end is pivotally connected to a fixed hinge point at the rear of base 1.

[0031] In order to enhance the rigidity and stability of the entire linkage, a reinforcing arm 5 is provided. The rear end of the reinforcing arm 5 is rotatably connected to the long arm 4 (e.g., the middle of the long arm 4 or other suitable position), and the front end is rotatably connected to the middle of the short arm 2.

[0032] The key improvement of the present invention is that the independent slider for driving the reinforcing arm in the traditional hinge is eliminated and a secondary slider 7 is innovatively provided. Figure 1 、 Figure 2 As shown, the secondary slider 7 is rotatably connected to the front end of the reinforcing arm 5. At the same time, the secondary slider 7 is slidably connected to the main slider 6 along the length direction of the main slider 6. In this way, the movement guidance of the reinforcing arm 5 is completely dependent on the secondary slider 7 sliding on the main slider 6. The core sliding component of the entire hinge is only the main slider 6, forming a "single slider" structure with a compact structure and unified movement. This design fundamentally avoids the problem of asynchronous movement of the two sliders in the double slider structure, making the hinge slide more steadily and smoothly during the opening and closing process, and the trajectory more stable. It also greatly simplifies the internal structure of the slide groove, avoids the problem of dust and sand easily mixed between the double sliders, and significantly improves durability.

[0033] In a preferred embodiment, in order to further optimize the load-bearing performance, as Figure 1 As shown, the entire reinforcement arm 5 is arranged below the short arm 2. When the window sash is opened, the reinforcement arm 5 can provide stable and reliable support for the short arm 2 from below, effectively sharing the bending moment borne by the short arm 2, thereby improving the load-bearing capacity and wind pressure resistance of the entire hinge.

[0034] In addition, the reinforcing arm 5 and the short arm 2 cross to form an "X" shape. Such a design can increase structural stability and load-bearing capacity.

[0035] In order to achieve reliable sliding of the secondary slider 7 on the main slider 6, as shown in FIG. Figure 1 As shown, the main slider 6 has a sliding hole 61 formed along its length, and the main body of the secondary slider 7 is slidably engaged in the sliding hole 61. As a simple and reliable implementation, the secondary slider 7 is preferably a specially made rivet, the upper portion of which is riveted to the reinforcing arm 5, the rod of which is inserted into the sliding hole 61, and the lower end of the secondary slider is provided with a cover portion with a larger diameter than the sliding hole 61 to prevent it from falling out of the sliding hole 61.

[0036] In order to provide a space for the secondary slider 7 (especially the cover at the lower end) to move to the front end, a groove 11 is formed at a corresponding position on the base 1. The stamping of the groove 11 also acts as a reinforcing rib in part, which can improve the structural strength of the base 1.

[0037] In addition, when the hinge is fully closed, the reinforcing arm 5 may interfere with the hinge axis connecting the short arm 2 and the main slider 6. Figure 1 、 Figure 2 As shown, an avoidance notch 51 is provided on the inner side of the reinforcing arm 5 , which ensures that when the hinge is fully closed, there is a sufficient safety gap between the reinforcing arm and the hinge axis, thereby ensuring smooth and unobstructed movement.

[0038] The sliding guide structure between the main slider 6 and the base 1 will be described in detail below through two specific embodiments.

[0039] Example 1

[0040] See also Figure 1 and Figure 2 , this embodiment shows the first sliding guide structure. In this structure, a long side of the base 1 is formed with a first slide groove 12 by a stamping process. Specifically, the first slide groove 12 is formed by first bending the side metal sheet of the base 1 upward, then bending it horizontally inward, and finally bending it downward. Its cross-section is roughly "J"-shaped or "C"-shaped. Correspondingly, a first ridge 62 extends upward from one side of the main slider 6. The shape of the first ridge 62 is adapted to the internal cavity of the first slide groove 12 and can be slidably embedded therein. This unilateral guide structure is simple and easy to process, and it can increase the load-bearing capacity of the hinge.

[0041] Example 2

[0042] See also Figure 3 and Figure 4This embodiment demonstrates a second type of sliding guide structure. The main difference from the first embodiment is that this embodiment utilizes bilaterally symmetrical guides, resulting in a more stable structure. In this structure, the two long sides of the base 1 are integrally formed with second slide grooves 13 by bending upward and then inward. Second ridges 63 are correspondingly provided on the lower portions of both sides of the main slider 6. These second ridges 63 can simultaneously slide into the corresponding second slide grooves 13 on both sides.

[0043] To further enhance the stability of the main slider 6 during guidance and prevent it from tilting or shaking, a cover plate 64 is provided on top of the main slider 6 (preferably integrally formed with the main slider 6). The two sides of this cover plate 64 protrude outward, extending beyond the second ridge 63 at the bottom and covering the top of the second chute 13. This design creates a stable "I-shaped" cross-section for the main slider 6, providing excellent guidance and anti-overturning capabilities on the base 1.

[0044] The present invention operates as follows: When the window sash is pushed outward, it drives the connecting rod assembly to move. The main slider 6 slides backward in the slide groove (first slide groove 12 or second slide groove 13) of the base 1. Simultaneously, the secondary slider 7 slides relatively in the slide hole 61 of the main slider 6. The connecting rods (2, 3, 4, 5) rotate in coordination around their respective hinge points, thereby smoothly pushing the window sash outward and supporting it in a predetermined position. The process of closing the window sash is the reverse of the above movement.

[0045] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A single-slider cross-type door and window hinge, characterized by: The invention comprises a base (1), a short arm (2), a support arm (3), a long arm (4) and a reinforcing arm (5); a main slider (6) is slidably connected to the base (1) along its length direction; one end of the short arm (2) is rotatably connected to the rear of the main slider (6); the other end of the short arm (2) is rotatably connected to the front of the support arm (3); one end of the long arm (4) is rotatably connected to the rear of the support arm (3); the other end of the long arm (4) is rotatably connected to the rear of the base (1); the rear end of the reinforcing arm (5) is rotatably connected to the long arm (4); the front end of the reinforcing arm (5) is rotatably connected to the middle of the short arm (2); the front end of the reinforcing arm (5) is also rotatably connected to a secondary slider (7); the secondary slider (7) is slidably connected to the main slider (6) along the length direction of the main slider (6).

2. The single-slider cross-type door and window hinge according to claim 1, characterized in that: The reinforcing arm (5) is located below the short arm (2) and supports the short arm (2) from below.

3. The single-slider cross-type door and window hinge according to claim 1, characterized in that: The main slider (6) is provided with a sliding hole (61), and the secondary slider (7) is fitted in the sliding hole (61).

4. The single-slider cross-type door and window hinge according to claim 3, characterized in that: The secondary slider (7) is a rivet with a cover at the lower end.

5. The single-slider cross-type door and window hinge according to claim 1, characterized in that: The base (1) is provided with a groove (11) for avoiding the secondary slider (7) and enhancing the structural strength.

6. The single-slider cross-type door and window hinge according to claim 1, characterized in that: A first sliding groove (12) is provided on a long side of the base (1), and a first ridge (62) extending upward is provided on a corresponding side of the main slider (6), and the first ridge (62) can be slidably embedded in the first sliding groove (12).

7. The single-slider cross-type door and window hinge according to claim 6, characterized in that: The first sliding groove (12) is integrally formed by bending the side of the base (1) upward, inward, and then downward.

8. The single-slider cross-type door and window hinge according to claim 1, characterized in that: The base (1) is provided with a second slide groove (13) on both long sides thereof, and the second slide groove (13) is formed by first bending the two long sides of the base (1) upward and then bending them inward. The lower parts of both sides of the main slider (6) are provided with a second ridge (63), and the second ridge (63) can be slidably embedded in the corresponding second slide groove (13).

9. The single-slider cross-type door and window hinge according to claim 8, characterized in that: A cover plate (64) is provided on the top of the main slider (6), and both side edges of the cover plate (64) protrude outwards and exceed the corresponding second ridges (63), so that the cross section of the main slider (6) presents an I-shape.

10. The single-slider cross-type door and window hinge according to claim 1, characterized in that: The reinforcing arm (5) is provided with an avoidance notch (51) for avoiding the hinge axis between the short arm (2) and the main slider (6).

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