Single slider cross type door and window hinge

Abstract

The utility model discloses a single sliding block cross type door and window hinge, including base, short arm, support arm, long arm and reinforcing arm, the base is slidably connected with main sliding block along its length direction, one end of short arm is rotatively connected in the rear of main sliding block, the other end of short arm is rotatively connected in the front of support arm, one end of long arm is rotatively connected in the rear of support arm, the other end of long arm is rotatively connected in the rear of base, the rear end of reinforcing arm is rotatively connected on long arm, the front of reinforcing arm is rotatively connected in the middle part of short arm, the front end of reinforcing arm still rotatively connected with secondary sliding block, secondary sliding block is slidably connected on main sliding block along the length direction of main sliding block. The utility model has the advantages of not easy to pinch sand dust, and the track of movement is more stable.

Description

Technical Field

[0001] This utility model relates to the field of door and window hinge technology, and in particular to a single-slider cross-type door and window hinge. Background Technology

[0002] Many existing cross hinges, such as the one disclosed in Chinese utility model patent (publication number CN215255445U), typically have their reinforcing arm and short arm pivotally connected to two independent sliders, which are then slid together within a groove in the base. This structure, which includes two or more main sliding components, can be called a "dual-slider structure" or a "multi-slider structure".

[0003] However, the inventors discovered in practice that the above-mentioned "dual slider structure" has the following inherent defects in practical applications:

[0004] 1. Poor motion coordination and unstable trajectory: Since the two sliders are separate entities, their movement within the groove depends entirely on the pushing and pulling action of the linkage mechanism. Due to factors such as accumulated machining tolerances, assembly errors, and local unevenness of the groove or sliders, it is difficult to ensure that the motion resistance of the two sliders is completely consistent. This leads to speed differences or slight start-stop jerks during their movement, i.e., the phenomenon of "motion asynchrony".

[0005] 2. Complex structure, prone to dust and dirt accumulation: The dual-slider design increases the number of independent parts and makes the internal structure of the base groove more complex. The gap between the two sliders provides ample space for external sand, rainwater impurities, and construction debris to accumulate, making it easy for dust and sand particles to get trapped between the two sliders.

[0006] 3. Uneven stress distribution poses a safety hazard: Due to asynchronous movement, the force transmitted from the linkage mechanism to the two sliders is difficult to distribute evenly.

[0007] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a door and window hinge that is single-slider, less prone to trapping sand and dust, and has a more stable movement trajectory.

[0009] This utility model is achieved through the following technical solution:

[0010] To solve the above-mentioned technical problems, this utility model 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. A main slider is slidably connected to the base along its length direction. One end of the short arm is rotatably connected to the rear of the main slider, and the other end of the short arm is rotatably connected to the front of the support arm. One end of the long arm is rotatably connected to the rear of the support arm, and the other end of the long arm is rotatably connected to the rear of the base. The rear end of the reinforcing arm is rotatably connected to the long arm, and the front of the reinforcing arm is rotatably connected to the middle of the short arm. A secondary slider is also rotatably connected to the front end of the reinforcing arm, 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 this utility model, the present utility model provides a single slider cross-type door and window hinge in which 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 this utility model, this utility model provides a single slider cross-type door and window hinge, wherein the main slider is provided with a sliding hole and the secondary slider is fitted in the sliding hole.

[0013] In order to further solve the technical problems to be solved by this utility model, this utility model provides a single slider cross-type door and window hinge, wherein the secondary slider is a rivet with a cap at the lower end.

[0014] To further address the technical problems addressed by this utility model, this utility model provides a single-slider cross-type door and window hinge, wherein the base is provided with a groove for avoiding secondary sliders and strengthening the structure.

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

[0016] In order to further solve the technical problems to be solved by this utility model, the present utility model provides a single slider cross-type door and window hinge in which the first sliding groove is integrally formed by bending the side of the base upward, inward and downward.

[0017] To further solve the technical problem to be solved by this utility model, this utility model provides a single slider cross-type door and window hinge in which the base is provided with a second sliding groove on both the wide and long sides. The second sliding groove is formed by bending the two long sides of the base upward and then inward. The lower part of both sides of the main slider is provided with a second protruding ridge, and the second protruding ridge is slidably embedded in the corresponding second sliding groove.

[0018] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a single slider cross-type door and window hinge, wherein the top of the main slider is provided with a cover plate, and the two sides of the cover plate protrude outward and exceed the corresponding second protruding ridge, 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 this utility model, the present utility model provides a single slider cross-type door and window hinge in which the reinforcing arm is provided with a clearance notch for avoiding the hinge shaft between the short arm and the main slider.

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

[0021] This invention abandons the existing "dual-slider" or "multi-slider" structure that relies on multiple independent sliders, and innovatively adopts a "single main slider with built-in secondary slider" design. Specifically, it connects and guides the reinforcing arm, which originally required independent sliders for drive, through a secondary slider that can slide on the main slider itself, thereby integrating all sliding functions into a single main slider. First, this structure fundamentally solves the problems of unstable trajectory, jamming, and abnormal noise caused by asynchronous movement of dual sliders, ensuring the smoothness and stability of the opening and closing process of doors and windows. Second, this structure significantly reduces the accumulation and trapping of sand 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. Attached Figure Description

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 This is a three-dimensional structural diagram of Embodiment 1;

[0024] Figure 2 This is an exploded view of Example 1;

[0025] Figure 3 This is a three-dimensional structural schematic diagram of Embodiment 2;

[0026] Figure 4 This is a three-dimensional structural diagram of the main slider in Embodiment 2. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Please see Figures 1 to 4This utility model 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 existing double slider structure.

[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 the window sash (not shown) and sliding on the base 1. The connecting rod assembly includes a main slider 6 and a linkage 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: The main slider 6 is slidably mounted on the base 1 and can reciprocate along its length. One end of the short arm 2 is rotatably connected to the rear of the main slider 6 via a hinge shaft; 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, and the other end is rotatably connected to the fixed hinge point at the rear of the base 1.

[0031] To enhance the rigidity and stability of the entire linkage mechanism, 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), while its front end is rotatably connected to the middle of the short arm 2.

[0032] The key improvement of this utility model lies in the elimination of the independent slider for driving the reinforcing arm in traditional hinges, and the innovative design of a secondary slider 7. For example... Figure 1 , Figure 2 As shown, the secondary slider 7 is rotatably connected to the front end of the reinforcing arm 5, and simultaneously, it slides along the length of the main slider 6. Thus, the movement of the reinforcing arm 5 relies entirely on this secondary slider 7 sliding on the main slider 6. The entire hinge has only one core sliding component, the main slider 6, forming a compact and uniformly moving "single slider" structure. This design fundamentally avoids the problem of asynchronous movement between the two sliders in a double slider structure, making the hinge slide more smoothly and steadily during opening and closing, with a more stable trajectory. It also greatly simplifies the internal structure of the slide groove, avoids the problem of dust and sand particles easily getting trapped between the two sliders, and significantly improves durability.

[0033] In a preferred embodiment, to further optimize load-bearing performance, such as Figure 1 As shown, the reinforcing arm 5 is positioned below the short arm 2. When the window sash is open, the reinforcing arm 5 provides stable and reliable support to 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 intersect in an "X" shape. This design increases structural stability and load-bearing capacity.

[0035] To achieve reliable sliding of the secondary slider 7 on the main slider 6, such as Figure 1 As shown, a sliding hole 61 is formed on the main slider 6 along its length, and the main body of the secondary slider 7 is slidably fitted into the sliding hole 61. As a simple and reliable implementation, the secondary slider 7 is preferably a specially made rivet, the upper part of which is riveted to the reinforcing arm 5, the rod part of which passes through the sliding hole 61, and the lower end of which has a cover with a diameter larger than the sliding hole 61 to prevent it from coming out of the sliding hole 61.

[0036] To provide clearance for the secondary slider 7 moving to the front end (especially its lower cover), a groove 11 is provided at a corresponding position on the base 1. The stamping of this groove 11 also serves as a reinforcing rib in a localized manner, thereby improving the structural strength of the base 1.

[0037] Furthermore, 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. Therefore, as follows... Figure 1 , Figure 2 As shown, a clearance notch 51 is provided on the inner side of the reinforcing arm 5. This notch ensures that there is sufficient safety clearance between the reinforcing arm and the hinge axis when the hinge is fully closed, thus 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] Please see Figure 1 and Figure 2 This embodiment demonstrates a first type of sliding guide structure. In this structure, a first groove 12 is integrally formed on one long side of the base 1 through a stamping process. Specifically, the first groove 12 is formed by bending the side metal sheet of the base 1 upwards, then horizontally inwards, and finally downwards, with a cross-section approximately "J" or "C" shaped. Correspondingly, a first protruding rib 62 extends upwards from one side of the main slider 6. The shape of the first protruding rib 62 is adapted to the internal cavity of the first groove 12, allowing it to slide within it. This single-sided guide structure is simple, easy to manufacture, and can increase the load-bearing capacity of the hinge.

[0041] Example 2

[0042] Please see Figure 3 and Figure 4This embodiment demonstrates a second sliding guide structure. The main difference from Embodiment 1 is that this embodiment employs a bilateral symmetrical guide, resulting in a more stable structure. In this structure, the two long sides of the base 1 are integrally formed with second sliding grooves 13 by bending upwards and then inwards. Correspondingly, the lower parts of both sides of the main slider 6 are provided with second protruding ribs 63, which can simultaneously slide into the corresponding second sliding grooves 13 on both sides.

[0043] To further enhance the stability of the main slider 6 during the guiding process and prevent it from tilting or wobbling, a cover plate 64 (preferably integrally formed with the main slider 6) is provided on the top of the main slider 6. The two sides of the cover plate 64 protrude outwards, their width exceeding the lower second protruding ridge 63, and covering the top of the second groove 13. This design makes the overall cross-section of the main slider 6 present a stable "I" shape, achieving excellent guiding effect and anti-tipping capability on the base 1.

[0044] The working process of this utility model is as follows: When the window sash is pushed open outward, the window sash drives the linkage assembly to move. The main slider 6 slides backward in the groove (first groove 12 or second groove 13) of the base 1. At the same time, the secondary slider 7 slides relative to the main slider 6 in the sliding hole 61. Each linkage (2,3,4,5) rotates in coordination around its respective hinge point, thereby smoothly pushing the window sash outward and supporting it in the predetermined position. The process of closing the window sash is the reverse process of the above movement.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A single-slider cross-type door and window hinge, characterized in that: The device includes 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. One end of the short arm (2) is rotatably connected to the rear of the main slider (6), and 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), and 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), and the front of the reinforcing arm (5) is rotatably connected to the middle of the short arm (2). A secondary slider (7) is also rotatably connected to the front end of the reinforcing arm (5). The secondary slider (7) is slidably connected to the main slider (6) along the length 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. A single-slider cross-type door and window hinge according to claim 1, characterized in that: The main slider (6) has a sliding hole (61), and the secondary slider (7) is fitted into the sliding hole (61).

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

5. A single-slider cross-type door and window hinge according to claim 1, characterized in that: The base (1) has a groove (11) for avoiding the secondary slider (7) and for strengthening the structure.

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

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

8. A single-slider cross-type door and window hinge according to claim 1, characterized in that: The base (1) has a second sliding groove (13) on both long sides. The second sliding groove (13) is formed by bending the two long sides of the base (1) upward and then inward. The lower part of both sides of the main slider (6) has a second protruding rib (63). The second protruding rib (63) is slidably embedded in the corresponding second sliding groove (13).

9. A single-slider cross-type door and window hinge according to claim 8, characterized in that: The top of the main slider (6) is provided with a cover plate (64), and the two sides of the cover plate (64) protrude outward and exceed the corresponding second protruding edge (63), so that the cross-section of the main slider (6) is I-shaped.

10. A single-slider cross-type door and window hinge according to claim 1, characterized in that: The reinforcing arm (5) has a clearance notch (51) for avoiding the hinge shaft between the short arm (2) and the main slider (6).

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