External buffering hardware hinge

Abstract

An external buffering hardware hinge comprises a hinge cup and a base, the hinge cup is hinged to the base through an upper hinge arm and a lower hinge arm, a sliding plate is installed at the bottom of the hinge cup in a front-back sliding mode, guide plates extend upwards from the two sides of the sliding plate and cover the outer side wall of the hinge cup, and limiting plates extend from the tops of the guide plates towards the hinge cup. The limiting plate is installed in a guide groove in the outer side wall of the hinge cup in a sliding mode and slides. The bottom of the hinge cup penetrates through a body of the hinge cup and is provided with a receding groove, the top of the sliding plate extends into the receding groove to form a driving plate, the upper hinge arm deviates from the hinge point of the upper hinge arm and the hinge cup and is provided with a driving arm, and when the hinge is closed, the driving arm and the driving plate extrude each other to push the sliding plate to move. The utility model has the beneficial effects that the buffer is externally arranged in the mounting groove at the bottom of the hinge cup, and the sliding plate is integrated with the driving plate and the guide mechanism, so that the thickness of the base can be reduced, and the appearance is smaller, neat and attractive.

Description

Technical Field

[0001] This utility model relates to a hinge, specifically an external buffer metal hinge. Background Technology

[0002] With the increasing demand for silent closure in the furniture industry, hinges with cushioning functions have become core components of modern high-end furniture such as cabinets and wardrobes. Traditional cushioning hinges generally use a technology that incorporates a buffer inside the base, but this structure has the following technical shortcomings that urgently need to be addressed:

[0003] 1. The bulky base structure restricts installation. Current technology integrates the hydraulic damper into the internal cavity of the base. To accommodate the damper's travel space, the base thickness must be increased to over 25mm. This not only causes the overall hinge size to exceed the industry standard mounting hole diameter of 32mm, but also results in a noticeable outward protrusion of the base after installation. For modern minimalist furniture with ultra-thin door panels ≤18mm thick, this type of hinge will cause the following problems:

[0004] The gap between the door panel and the cabinet body is forced to be increased to more than 8mm to avoid the protruding base, which damages the overall appearance of the furniture and cannot meet the requirements of embedded installation, resulting in structural interference in the application of narrow-sided cabinets.

[0005] 2. Redundancy in the force transmission path leads to energy loss. In traditional structures, the drive arm needs to transmit the closing force to the buffer inside the base via an intermediate connecting rod. This transmission path requires three stages of transmission, resulting in significant energy loss. Furthermore, the minimum clearance between the intermediate connecting rod and the inner wall of the base is only 1.2-1.5mm, which can easily lead to frictional noise due to metal fatigue after long-term use.

[0006] 3. Lag in buffer response impacts user experience. Traditional structures experience a delay from the moment the drive arm contacts the buffer to the point where the buffer is fully activated. This causes the hinge to lose its buffering effect within approximately 15° of its closed end, making it impossible to achieve small-angle buffering. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide an external buffer hardware hinge that is simple in structure, easy to use, has a good buffering effect, small size, and neat and beautiful appearance.

[0008] The purpose of this utility model is achieved through the following means: an external buffer hardware hinge, which includes a hinge cup and a base. The hinge cup and the base are hinged together by an upper hinge arm and a lower hinge arm. The upper hinge arm and the lower hinge arm swing relative to the hinge cup and the base to realize the opening and closing of the hinge. A sliding plate is installed on the bottom of the hinge cup in a sliding manner. Guide plates extend upward from both sides of the sliding plate. The guide plates cover the outer side wall of the hinge cup. A limiting plate extends from the top of the guide plate towards the hinge cup. The limiting plate is slidably installed in the guide groove on the outer side wall of the hinge cup.

[0009] The bottom of the hinge cup has a clearance groove through its body, and the top of the slide plate extends into the clearance groove with a drive plate. The upper hinge arm is provided with a drive arm offset from its hinge point with the hinge cup. When the hinge is closed, the drive arm and the drive plate squeeze each other and push the slide plate to move.

[0010] The hinge cup is also equipped with a damper, which acts on the skateboard to slow down the skateboard's movement speed.

[0011] Furthermore, the bottom of the hinge cup is recessed and has a mounting groove, and the buffer is installed in the mounting groove.

[0012] Furthermore: the mounting groove extends through the outer bottom and front end face of the hinge cup, the sliding plate extends into the mounting groove with a support plate, and the buffer is connected to the support plate.

[0013] Furthermore, a reset arm is also provided on the upper hinge arm. The reset arm is offset from the hinge point between the upper hinge arm and the hinge cup. Correspondingly, a reset groove is provided on the slide plate, and the reset arm extends into the reset groove to slide.

[0014] Furthermore, the skateboard is also equipped with a locking plate that extends into the clearance groove.

[0015] Furthermore: the buffer is a compression damping type hydraulic buffer, the cylinder part of the buffer is fixed in the mounting groove, and the piston rod of the buffer is connected to the support plate.

[0016] The beneficial effects of this utility model are: 1. Simple structure, low production cost, and improved market competitiveness.

[0017] 2. By placing the buffer externally in the mounting slot at the bottom of the hinge cup and using a sliding plate to integrate the drive plate and guide mechanism, the thickness of the base can be reduced, making it more compact, neat and beautiful in appearance.

[0018] 3. The innovative design of the drive arm and drive plate direct contact transmission structure eliminates the intermediate connecting rod, and the closing force is transmitted in a single stage through the drive arm → slide plate → buffer, improving the power transmission efficiency.

[0019] 4. The separate installation structure of the slide plate and the shock absorber allows users to remove the shock absorber for replacement and maintenance, reducing the cost of later use. Attached Figure Description

[0020] Figure 1 This is a diagram showing the overall assembly and usage effect of this utility model and the cabinet.

[0021] Figure 2 , 3 This is a schematic diagram of the hinge in the open state in this utility model.

[0022] Figure 4 This is a schematic diagram of the hinge in the closed state in this utility model.

[0023] Figure 5 This is a cross-sectional view of the structure of this utility model with the hinge in the open state.

[0024] Figure 6 This is a cross-sectional view of the structure of this utility model with the hinge in the closed state.

[0025] Figure 7 , 8 This is an exploded view of the structure of this utility model.

[0026] Figure 9 This is an exploded view of the sliding plate and hinge arm in this utility model. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings. An external buffer hardware hinge includes a hinge cup 1 and a base 2. The hinge cup 1 and the base 2 are hinged together by an upper hinge arm 3 and a lower hinge arm 4. The upper hinge arm 3 and the lower hinge arm 4 swing relative to the hinge cup 1 and the base 2 to realize the opening and closing of the hinge. A sliding plate 5 is installed on the bottom of the hinge cup 1 in a sliding manner. Guide plates 51 extend upward from both sides of the sliding plate 5. The guide plates 51 cover the outer side wall of the hinge cup 1. A limiting plate 52 extends from the top of the guide plate 51 toward the hinge cup 1. The limiting plate 52 is slidably installed in the guide groove 11 on the outer side wall of the hinge cup 1.

[0028] The bottom of the hinge cup 1 is provided with a clearance groove 12 through its body. The top of the slide plate 5 extends into the clearance groove 12 with a drive plate 53. The upper hinge arm 3 is provided with a drive arm 31 off-center from its hinge point with the hinge cup 1. When the hinge is closed, the drive arm 31 and the drive plate 53 press against each other, pushing the slide plate 5 to move.

[0029] The hinge cup 1 is also equipped with a buffer 6, which acts on the slide plate 5 to slow down the movement speed of the slide plate 5.

[0030] In one embodiment: the bottom of the hinge cup 1 is recessed with a mounting groove 13, and the buffer 6 is installed in the mounting groove 13.

[0031] In one embodiment: the mounting groove 13 is provided through the outer bottom and front end face of the hinge cup 1, the sliding plate 5 extends into the mounting groove 13 with a support plate 54, and the buffer 6 is connected to the support plate 54.

[0032] In one embodiment: the upper hinge arm 3 is further provided with a reset arm 32, which is offset from the hinge point between the upper hinge arm 3 and the hinge cup 1. Correspondingly, a reset groove 55 is provided on the slide plate 5, and the reset arm 32 extends into the reset groove 55 to slide.

[0033] In one embodiment, the sliding plate 5 is further provided with a locking plate 56 extending into the clearance groove 12.

[0034] In one embodiment: the buffer is a compression damping type hydraulic buffer, the cylinder part of the buffer is fixed in the mounting groove, and the piston rod of the buffer is connected to the support plate 54.

[0035] Working principle: In the initial state of the hinge, the upper hinge arm and the lower hinge arm are connected to the hinge cup and the base respectively through the hinge point, allowing the hinge cup and the base to swing relative to each other, so as to realize the opening and closing function of the hinge.

[0036] When the hinge swings from the closed state to the open state, the hinge cup 1 drives the opening and closing of the entire hinge system through the upper hinge arm 3 and the lower hinge arm 4. The slide plate 5 is installed at the bottom of the hinge cup 1 and slides in the guide groove 11 at the bottom of the hinge cup 1. The opening action of the hinge is completed by the relative movement between the slide plate 5 and the upper hinge arm 3 and the lower hinge arm 4.

[0037] When the hinge is closed, the drive arm 31 and the drive plate 53 press against each other, pushing the slide plate 5 along the guide groove 11 of the hinge cup 1. This process allows the slide plate 5 to move smoothly along the guide rail. At the same time, a buffer 6 is installed in the hinge cup 1 in this case. The buffer acts on the slide plate 5 to slow down the movement speed of the slide plate, thereby buffering the hinge closing and avoiding excessive impact force when the hinge closes.

[0038] Furthermore, in this case, a reset arm 32 is installed on the upper hinge arm 3. The reset arm 32 can cooperate with the reset groove 55 on the slide plate 5 to help the hinge push the slide plate and the buffer to the normal position during the opening process, so as to prepare for the next reset of the hinge.

[0039] It should be noted that a guide plate 51 and a limiting plate 52 are provided on the outside of the hinge cup 1. The limiting plate 52 cooperates with the guide groove 11 on the outer wall of the hinge cup 1 by sliding to limit the movement range of the slide plate 5 and ensure the stability and accuracy of the hinge during the opening and closing process.

[0040] Compared to traditional technologies, the damper 6 in this device effectively slows down the opening and closing speed of the hinge, preventing violent collisions between metal parts, thereby reducing friction and extending the hinge's lifespan. Furthermore, the damper's design makes the hinge smoother during opening and closing, enhancing the user experience.

[0041] Furthermore, in traditional hinge designs, the damper is usually placed inside the hinge cup or in direct contact with other components, which can result in a cluttered structure and affect the appearance. In contrast, this design mounts the damper on the outside of the hinge cup 1. This design greatly simplifies the internal structure of the hinge cup, resulting in a smoother and more streamlined external profile.

[0042] Meanwhile, the externally mounted damper effectively avoids protrusions or complex components in traditional designs, enhancing the overall aesthetics of the hinge and meeting the demands of modern home and industrial products for refined appearance.

[0043] Save space and keep the interior structure neat:

[0044] Furthermore, by placing the buffer 6 on the outside of the hinge cup 1, the interior of the hinge cup remains clean and tidy. This design not only avoids occupying space inside the hinge cup but also allows sufficient space for other important components such as the slide plate and drive plate to fit precisely, ensuring the stability and efficient operation of the hinge. The configuration of the outer buffer reduces interference with the internal space, making the internal structure of the hinge cup more compact and efficient.

[0045] Furthermore, since the buffer 6 is located on the outside of the hinge cup, its installation and removal are relatively simple, facilitating later maintenance and replacement. Users can easily inspect and replace the buffer without disassembling other internal components, improving the ease of maintenance.

[0046] In conclusion, in modern design, a product's appearance and functionality are crucial factors for customers when making a purchase. By placing the damper on the outside of the hinge cup, not only is the product's manufacturing precision and structural optimization improved, but its competitiveness in the market is also enhanced. Consumers tend to have a high acceptance of clean, simple, and efficient designs, which increases the overall perceived value of the product and strengthens its overall competitiveness.

[0047] 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. An external buffer metal hinge, comprising a hinge cup (1) and a base (2), wherein the hinge cup (1) and the base (2) are hinged together by an upper hinge arm (3) and a lower hinge arm (4), and the upper hinge arm (3) and the lower hinge arm (4) swing relative to the hinge cup (1) and the base (2) to realize the opening and closing of the hinge, characterized in that: The bottom of the hinge cup (1) is slidably mounted with a sliding plate (5). Guide plates (51) extend upward on both sides of the sliding plate (5). The guide plates (51) cover the outer wall of the hinge cup (1). The top of the guide plates (51) extends towards the hinge cup (1) with a limiting plate (52). The limiting plate (52) is slidably mounted in the guide groove (11) on the outer wall of the hinge cup (1). The bottom of the hinge cup (1) is provided with a clearance groove (12) through its body. The top of the slide plate (5) extends into the clearance groove (12) with a drive plate (53). The upper hinge arm (3) is provided with a drive arm (31) off from its hinge point with the hinge cup (1). When the hinge is closed, the drive arm (31) and the drive plate (53) squeeze each other and push the slide plate (5) to move. The hinge cup (1) is also equipped with a buffer (6), which acts on the slide plate (5) to slow down the movement speed of the slide plate (5).

2. The external buffer hardware hinge according to claim 1, characterized in that: The bottom of the hinge cup (1) is recessed and has a mounting groove (13), and the buffer (6) is installed in the mounting groove (13).

3. The external buffer hardware hinge according to claim 2, characterized in that: The mounting groove (13) is provided through the outer bottom and front end face of the hinge cup (1), the sliding plate (5) extends into the mounting groove (13) with a support plate (54), and the buffer (6) is connected to the support plate (54).

4. The external buffer hardware hinge according to claim 1, characterized in that: The upper hinge arm (3) is also provided with a reset arm (32). The reset arm (32) is set away from the hinge point between the upper hinge arm (3) and the hinge cup (1). Correspondingly, a reset groove (55) is provided on the slide plate (5). The reset arm (32) extends into the reset groove (55) and slides.

5. The external buffer hardware hinge according to claim 1, characterized in that: The slide plate (5) is also provided with a locking plate (56) extending into the clearance groove (12).

6. The external buffer hardware hinge according to claim 3, characterized in that: The buffer is a compression damping type hydraulic buffer. The cylinder part of the buffer is fixed in the mounting groove, and the piston rod of the buffer is connected to the support plate (54).

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