Side pressure type buffer hinge of aluminum frame door

Abstract

An aluminum frame door side pressure type buffer hinge comprises a hinge cup and a hinge arm, the hinge cup is provided with a concave installation cavity, a first connecting rod and a second connecting rod are installed in the installation cavity in a hinged mode, the other end of the first connecting rod and the other end of the second connecting rod are hinged to the hinge arm, and the first connecting rod and the second connecting rod swing relative to the hinge arm and the hinge cup to achieve opening and closing of the hinge. A buffer hole is formed in the side wall of the mounting cavity in a transverse extending manner, a buffer block is mounted in the buffer hole in a telescopic manner, an extrusion inclined surface is arranged on the end surface of the buffer block, and the extrusion inclined surface extends into the mounting cavity; the first connecting rod extends outwards to form a buffering arm, and when the hinge is closed, the buffering arm makes contact with the extrusion inclined face and pushes the buffering block to move into the buffering hole through the extrusion inclined face, so that the damping effect is generated when the hinge is closed.

Description

Technical Field

[0001] This utility model relates to a hardware hinge, specifically a side-pressure buffer hinge for aluminum frame doors. Background Technology

[0002] Hinges, as essential hardware connecting door panels and frames, are widely used in furniture, building doors and windows, and other fields. Traditional hinges, lacking an effective deceleration mechanism, often generate significant impact forces between the door panel and frame when closing. This impact not only easily damages the door panel and frame, reducing their lifespan, but also produces considerable noise, affecting the user experience. To solve these problems, soft-close hinges were developed. Soft-close hinges, through built-in damping elements, effectively slow down the closing speed of the door panel, achieving a smooth and quiet closing effect, protecting the door panel and frame, and improving user comfort.

[0003] However, existing buffer hinge designs still have some significant shortcomings that limit their performance and applicability in practical applications, specifically:

[0004] 1. Insufficient Aesthetics: In existing soft-close hinge designs, damping elements such as damping cylinders are typically installed directly within the hinge cup's mounting cavity. When the hinge is open, the damping elements are completely exposed, affecting not only the overall aesthetics of the hinge but also failing to meet the high aesthetic requirements of upscale furniture or doors and windows. This exposed design appears visually jarring and fails to satisfy the modern design demands for both concealment and aesthetics.

[0005] 2. Susceptible to external environmental influences: Since the damping element is directly installed within the mounting cavity and exposed to the external environment, it easily accumulates dust and dirt, and may even be subjected to impacts or pressure from external objects. These factors can lead to a decline in the performance of the damping element, such as a weakening or complete failure of the damping effect, thereby shortening the hinge's lifespan. This design flaw is particularly pronounced during long-term use or in harsh environments.

[0006] 3. Limited Design Flexibility: Directly mounting the damping element within the hinge cup's mounting cavity limits the hinge's structural design flexibility. Due to the limited space in the mounting cavity, this layout struggles to adapt to door leaf requirements of different sizes, types, or installation methods. Especially in specialized applications such as aluminum-framed doors, existing buffer hinges cannot meet the requirements of side-pressure installation, thus limiting their applicability.

[0007] 4. Unstable damping effect: In some existing designs, the damping element may be subjected to a large direct impact force when the hinge is closed. This impact not only accelerates the wear of the damping element, but may also lead to unstable damping effect, so it is necessary to make further improvements. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an aluminum frame door side-pressure buffer hinge that is simple in structure, easy to use, and can optimize the appearance design, improve durability, and adapt to more diverse installation needs while ensuring damping function.

[0009] The purpose of this utility model is achieved through the following means: a side-pressure buffer hinge for an aluminum frame door, comprising a hinge cup and a hinge arm, wherein the hinge cup is provided with a recessed mounting cavity, and a first connecting rod and a second connecting rod are hingedly mounted in the mounting cavity, the other end of the first connecting rod and the second connecting rod are hinged to the hinge arm, the first connecting rod and the second connecting rod swing relative to the hinge arm and the hinge cup to realize the opening and closing of the hinge, and a buffer hole is provided in the side wall of the mounting cavity extending laterally, and a buffer block is telescopically mounted in the buffer hole, wherein the end face of the buffer block is provided with a pressing slope, and the pressing slope extends into the mounting cavity;

[0010] The first link extends outward with a buffer arm. When the hinge is closed, the buffer arm contacts the compression ramp and pushes the buffer block into the buffer hole through the compression ramp, generating a damping effect when the hinge is closed.

[0011] Furthermore, a damping cylinder is also installed inside the buffer hole. One end of the damping cylinder is supported by the bottom of the buffer hole, and the other end of the damping cylinder is supported by the inner end face of the buffer block.

[0012] Furthermore, the damping cylinder is a compression damping type hydraulic cylinder.

[0013] Furthermore: one end of the cylinder body of the damping cylinder is connected to the buffer block, and one end of the piston rod of the damping cylinder is connected to the bottom of the buffer hole.

[0014] Furthermore, the buffer block has a columnar structure, with at least a first anti-rotation surface provided on its columnar surface, and correspondingly, a first anti-rotation platform is provided on the inner hole of the buffer hole to cooperate with it.

[0015] Furthermore, the inner end face of the buffer block is recessed inward with a mounting hole, and the damping cylinder is inserted into the mounting hole.

[0016] Furthermore, the buffer block is made of plastic material, and its extrusion slope is set so that the side closer to the buffer arm is lower and the side farther away from the buffer arm is higher.

[0017] Furthermore: the buffer arm is provided as an outward extension of the material of the first connecting rod body, and the buffer arm is far away from the hinge point between the first connecting rod and the hinge cup.

[0018] The beneficial effects of this utility model are: 1. Simple structure, low production cost, and improved market competitiveness.

[0019] 2. Traditional hinges typically have their damping elements directly housed within the hinge cup's mounting cavity. When the hinge is open, the damping element is completely exposed, affecting the overall appearance. This invention, however, installs the damping element within a buffer hole on the hinge cup's side wall, employing a side-mounted design. This allows the damping element to be completely concealed within the hinge cup when the hinge is open, only functioning when closed by engaging with the buffer arm through a pressing bevel. This design significantly enhances the hinge's aesthetics, meeting the high aesthetic demands of modern homes and commercial spaces, and resulting in a more concise and elegant overall door and window system.

[0020] 3. The damping element is placed sideways within the buffer hole on the side wall of the hinge cup, effectively utilizing the lateral space of the hinge cup and reducing the overall volume of the hinge in the open state. Compared to traditional designs, this compact structure makes the hinge more suitable for installation in environments with limited space, such as narrow-framed aluminum doors or small furniture, improving installation flexibility and applicability.

[0021] 4. The buffer block precisely engages with the buffer arm of the first connecting rod through a pressing inclined surface, generating a damping effect when the hinge is closed. This side-pressure design makes the connection between the damping element and other hinge components tighter, reducing loosening and wear that may occur during long-term use, thereby improving the stability of the hinge and the reliability of the damping effect, ensuring that it can maintain excellent performance after repeated opening and closing.

[0022] 5. Since the damping elements, including the buffer block and damping cylinder, are only activated and generate damping effect when the hinge is closed, compared to the traditional design where the damping elements are continuously stressed throughout the opening and closing process, the side-mounted design of this invention significantly reduces the wear and aging of the damping elements. This working mode extends the service life of the damping elements, thereby improving the durability of the entire hinge system and providing users with a longer-lasting reliable experience.

[0023] 6. Through the side-pressure cooperation of the buffer arm and the compression ramp, the hinge can achieve smooth deceleration during closing, avoiding impact and noise when closing doors and windows. This optimized damping effect not only improves user comfort but also protects the door and window structure from long-term impact damage, enhancing the product's practicality.

[0024] 7. The damping element is installed within the buffer hole for easy assembly and disassembly. Replacement or maintenance of the damping element can be performed without disassembling the entire hinge; it can be done simply by accessing the side. This design simplifies installation and maintenance, reduces maintenance costs, and enhances product usability and user-friendliness. Attached Figure Description

[0025] Figure 1 , 2 This is a rendering of the hinge in the open state in this utility model.

[0026] Figure 3 This is a rendering of the hinge in a partially closed state in this utility model.

[0027] Figure 4 This is a cross-sectional view of the structure of the present invention with the hinge in a semi-closed state.

[0028] Figure 5 This is a cross-sectional view of the structure of this utility model with the hinge in the closed state.

[0029] Figure 6 This is an exploded view of the structure of this utility model. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings. A side-pressure buffer hinge for an aluminum frame door includes a hinge cup 1 and a hinge arm 2. The hinge cup 1 has a recessed mounting cavity 3. A first connecting rod 4 and a second connecting rod 5 are hingedly mounted in the mounting cavity 3. The other end of the first connecting rod 4 and the second connecting rod 5 is hinged to the hinge arm 2. The first connecting rod 4 and the second connecting rod 5 swing relative to the hinge arm 2 and the hinge cup 1 to realize the opening and closing of the hinge. A buffer hole 6 is provided laterally extending from the side wall of the mounting cavity 3. A buffer block 7 is telescopically mounted in the buffer hole 6. The end face of the buffer block 7 is provided with a pressing inclined surface 72, which extends into the mounting cavity 3.

[0031] The first link 4 extends outward with a buffer arm 41. When the hinge is closed, the buffer arm 41 contacts the compression ramp 72 and pushes the buffer block 7 into the buffer hole 6 through the compression ramp 72, thus generating a damping effect when the hinge is closed.

[0032] In one embodiment, a damping cylinder 8 is also installed inside the buffer hole 6. One end of the damping cylinder 8 is supported on the bottom of the buffer hole 6, and the other end of the damping cylinder 8 is supported on the inner end face of the buffer block 7.

[0033] In one embodiment, the damping cylinder 8 is a compression damping type hydraulic cylinder.

[0034] In one embodiment, one end of the cylinder body 81 of the damping cylinder 8 is connected to the buffer block 7, and one end of the piston rod 82 of the damping cylinder 8 is connected to the bottom of the buffer hole 6.

[0035] In one embodiment, the buffer block 7 is a columnar structure, with at least a first anti-rotation surface 71 provided on its columnar surface. Correspondingly, a first anti-rotation platform 61 is provided on the inner hole of the buffer hole 6 to cooperate with it.

[0036] In one embodiment, the inner end face of the buffer block 7 is recessed with an inward mounting hole, and the damping cylinder 8 is inserted into the mounting hole.

[0037] In one embodiment, the buffer block 7 is made of plastic material, and the extrusion slope 72 on it is set to be lower on the side closer to the buffer arm 41 and higher on the side farther away from the buffer arm 41.

[0038] In one embodiment, the buffer arm 41 is provided as an outward extension of the material of the first link 4 body, and the buffer arm 41 is away from the hinge point between the first link 4 and the hinge cup 1.

[0039] Working principle:

[0040] This aluminum frame door side-pressure buffer hinge includes the following main components:

[0041] Hinge cup 1: It has a recessed mounting cavity 3, which serves as the basic fixing component of the hinge.

[0042] Hinge 2: Connected to the door frame or door leaf, providing support for opening and closing.

[0043] The first link 4 and the second link 5 are hinged to the hinge cup 1 and the hinge arm 2 respectively, forming a four-bar linkage. When the door or window is opened or closed, the first link 4 and the second link 5 swing relative to the hinge cup 1 and the hinge arm 2, realizing the opening and closing function of the hinge. This structure ensures the basic flexibility and stability of the hinge's movement.

[0044] The core innovation of this utility model lies in the horizontal provision of a buffer hole 6 on the side wall of the hinge cup mounting cavity 3, and the installation of a retractable buffer block 7 and a damping cylinder 8 therein, achieving a damping effect through a side-pressure design.

[0045] Specifically: The buffer block 7 in this case has a pressing bevel 72 on its end face, and the bevel extends into the mounting cavity 3. The side closer to the buffer arm 41 is lower, and the side further away is higher. The buffer block 7 is a columnar plastic structure, and a first anti-rotation surface 71 is provided on the columnar surface, which cooperates with the first anti-rotation platform 61 on the inner wall of the buffer hole 6 to restrict its rotation and ensure linear movement.

[0046] Specifically: The buffer arm 41 is formed by extending outward from the body material of the first link 4 and is located away from the hinge point between the first link 4 and the hinge cup 1. When the hinge opens and closes, the buffer arm swings around the hinge point of the first link.

[0047] Specifically: The damping cylinder 8 is a compression damping type hydraulic cylinder. The cylinder body 81 is connected to the buffer block 7, and the piston rod 82 is fixed to the bottom of the buffer hole 6 and installed in the mounting hole on the inner end face of the buffer block 7.

[0048] When the hinge closes, the first link 4 swings with the hinge movement, causing the buffer arm 41 to approach the compression ramp 72 of the buffer block 7. The angle at which the buffering begins can be controlled according to user needs, so that in the final stage of closing, the buffer arm 41 contacts the compression ramp 72 from the lower side and gradually moves towards the higher side, applying compression force to push the buffer block 7 back into the buffer hole 6. After being subjected to force, the buffer block 7 compresses the damping cylinder 8. The cylinder moves with the buffer block 7, and the piston rod 82 extends relative to it. Hydraulic oil flows within the cylinder, generating damping force, slowing the movement speed of the buffer block 7, thereby slowing the closing speed of the hinge and achieving a buffered closing effect.

[0049] It should be noted that in this case, the hydraulic damping force provided by the damping cylinder 8 is combined with the progressive design of the extrusion ramp 72 to gradually increase the damping force, avoid sudden impacts, and ensure a smooth and quiet closing process. The first anti-rotation surface and the anti-rotation platform ensure the stability of the buffer block 7's movement direction, and the extrusion ramp 72 and the buffer arm 41 are always precisely aligned to ensure consistent damping effect.

[0050] Compared with traditional technology, in the side-pressure buffer hinge of this utility model, the buffer block 7 and the damping cylinder 8 are hidden in the buffer hole 6 on the side wall of the hinge cup. They are completely invisible when the hinge is opened, which avoids the problem of traditional damping elements being exposed and affecting the appearance. This maintains the simplicity and beauty of the door and window system and meets the needs of modern design.

[0051] Meanwhile, the side-mounted damping design makes full use of the lateral space of the hinge cup, reducing the overall volume. It is particularly suitable for narrow-frame aluminum doors or applications with limited space, improving installation flexibility. The buffer arm 41 and the extrusion ramp 72 have a tight lateral pressure fit, and the anti-rotation design further ensures precise movement, reduces loosening and wear, and maintains a stable damping effect even after long-term use.

[0052] Furthermore, in this case, the damping element is only subjected to force when closed and remains stationary at other times, significantly reducing wear. The combination of the plastic buffer block 7 and the hydraulic damping cylinder 8 further improves durability. At the same time, the progressive damping force makes the closing process smooth and shock-free, reduces noise, protects the door and window structure, and enhances the user experience.

[0053] In summary, this invention achieves smooth buffering when the hinge closes by setting a buffer hole 6 on the side wall of the hinge cup and utilizing the side-pressing cooperation of the buffer block 7, damping cylinder 8, and buffer arm 41. Its working principle is clear, and its technology is highly efficient. It not only solves the problems of exposed damping elements and loose structure in traditional hinges, but also provides an aesthetically pleasing, durable, and practical solution for aluminum frame door and window systems through its concealed design and optimized damping effect. Therefore, it can be widely promoted and used.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A side-pressure buffer hinge for an aluminum frame door, comprising a hinge cup (1) and a hinge arm (2), wherein the hinge cup (1) is provided with a recessed mounting cavity (3), and a first connecting rod (4) and a second connecting rod (5) are hingedly mounted in the mounting cavity (3), the other end of the first connecting rod (4) and the second connecting rod (5) being hinged to the hinge arm (2), and the first connecting rod (4) and the second connecting rod (5) swinging relative to the hinge arm (2) and the hinge cup (1) to realize the opening and closing of the hinge, characterized in that: The sidewall of the mounting cavity (3) is provided with a buffer hole (6) extending laterally. A buffer block (7) is telescopically installed in the buffer hole (6). The end face of the buffer block (7) is provided with a pressing slope (72), which extends into the mounting cavity (3). The first link (4) extends outward with a buffer arm (41). When the hinge is closed, the buffer arm (41) contacts the compression ramp (72) and pushes the buffer block (7) into the buffer hole (6) through the compression ramp (72), generating a damping effect when the hinge is closed.

2. The aluminum frame door side-pressure buffer hinge according to claim 1, characterized in that: A damping cylinder (8) is also installed inside the buffer hole (6). One end of the damping cylinder (8) is supported on the bottom of the buffer hole (6), and the other end of the damping cylinder (8) is supported on the inner end face of the buffer block (7).

3. The aluminum frame door side-pressure buffer hinge according to claim 2, characterized in that: The damping cylinder (8) is a compression damping type hydraulic cylinder.

4. The aluminum frame door side-pressure buffer hinge according to claim 3, characterized in that: One end of the cylinder body (81) of the damping cylinder (8) is connected to the buffer block (7), and one end of the piston rod (82) of the damping cylinder (8) is connected to the bottom of the buffer hole (6).

5. The aluminum frame door side-pressure buffer hinge according to claim 1, characterized in that: The buffer block (7) is a columnar structure, and at least a first anti-rotation surface (71) is provided on its columnar surface. Correspondingly, a first anti-rotation platform (61) is provided on the inner hole of the buffer hole (6).

6. The aluminum frame door side-pressure buffer hinge according to claim 2, characterized in that: The inner end face of the buffer block (7) is recessed with an inward mounting hole, and the damping cylinder (8) is inserted into the mounting hole.

7. A side-pressure buffer hinge for an aluminum frame door according to claim 1 or 5, characterized in that: The buffer block (7) is made of plastic material, and the extrusion slope (72) on it is set with the side closer to the buffer arm (41) being low and the side farther away from the buffer arm (41) being high.

8. The aluminum frame door side-pressure buffer hinge according to claim 1, characterized in that: The buffer arm (41) is an outward extension of the body material of the first connecting rod (4), and the buffer arm (41) is far away from the hinge point between the first connecting rod (4) and the hinge cup (1).

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