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 device has the beneficial effects that the buffer is externally arranged in the mounting groove in the bottom of the hinge cup, and the driving plate and the guide mechanism are integrated through the sliding plate, so that the thickness of the base can be reduced, and the appearance is smaller, neat and attractive.

Description

Technical Field

[0001] The invention relates to a hinge, in particular to an external buffering hardware hinge. Background Art

[0002] With the increasing demand for silent closing in the furniture industry, hardware hinges with buffer functions have become the core accessories of modern cabinets, wardrobes and other high-end furniture. Traditional buffer hinges generally adopt the technical solution of setting a buffer inside the base, but this structure has the following technical defects that need to be solved: 1: The bloated structure of the base restricts installation. The existing technology integrates the hydraulic buffer into the internal chamber of the base. In order to accommodate the buffer travel space, the thickness of the base must be increased to more than 25mm. This not only causes the overall size of the hinge to exceed the industry standard installation aperture of 32mm, but also produces a noticeable bulge in the base after installation. For modern minimalist style furniture with ultra-thin door panels ≤18mm thick, this type of hinge will cause the following problems: The gap between the door panel and the cabinet is forced to increase to more than 8mm to avoid the protruding base, which destroys the integrity of the furniture appearance and cannot meet the requirements of embedded installation, causing structural interference in narrow-edge cabinet applications.

[0003] 2: Redundancy in the force transmission path causes energy loss. The driving arm of the traditional structure needs to transmit the closing force to the buffer in the base through the intermediate connecting rod. This transmission path requires three-level transmission, which results in large energy loss. At the same time, the minimum gap between the intermediate connecting rod and the inner wall of the base is only 1.2-1.5mm, which is prone to friction noise due to metal fatigue after long-term use.

[0004] 3. Buffer response hysteresis affects user experience. The traditional structure needs to experience a delay from the drive arm contacting the buffer to the complete start of the buffer. This causes the hinge to lose its buffering effect within a range of about 15° at the closing end, and small-angle buffering cannot be achieved. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an external buffering hardware hinge which has a simple structure, is easy to use, has a good buffering effect, is small in size, and has a neat and beautiful appearance.

[0006] The object of the present invention is achieved by the following methods: an external buffer hardware hinge, which includes a hinge cup and a base, the hinge cup and the base are hinged 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 slide plate is installed at the bottom of the hinge cup in a forward and backward sliding manner, guide plates are extended upward on both sides of the slide plate, the guide plates cover the outer side wall of the hinge cup, a limit plate is extended from the top of the guide plate toward the hinge cup, and the limit plate is slidably installed in a guide groove on the outer side wall of the hinge cup; The bottom of the hinge cup is provided with an air avoidance groove penetrating through the body thereof, the top of the slide plate is provided with a driving plate extending into the air avoidance groove, and the upper hinge arm is provided with a driving arm deviating from the hinge point between the upper hinge arm and the hinge cup. When the hinge is closed, the driving arm and the driving plate are pressed against each other to push the slide plate to move; A buffer is also installed on the hinge cup, and the buffer acts on the slide plate to slow down the movement speed of the slide plate.

[0007] Furthermore: the bottom of the hinge cup is concavely provided with a mounting groove, and the buffer is installed in the mounting groove.

[0008] Furthermore: the installation groove is set through the outer bottom and front end surface of the hinge cup, the slide plate is extended into the installation groove with a support plate, and the buffer is connected to the support plate.

[0009] Furthermore: a reset arm is also arranged on the upper hinge arm, and the reset arm is arranged away from the hinge point between the upper hinge arm and the hinge cup. Correspondingly, a reset groove is arranged on the slide plate, and the reset arm extends into the reset groove and slides.

[0010] Furthermore: the slide plate is also provided with a locking plate extending into the air avoidance groove.

[0011] Furthermore: the buffer is a compression damping type hydraulic buffer, the cylinder part of the buffer is fixed in the installation groove, and the piston rod of the buffer is connected to the support plate.

[0012] The beneficial effects of the present invention are: 1. Simple structure, low production cost and improved market competitiveness.

[0013] 2. By placing the buffer outside the mounting groove at the bottom of the hinge cup and using a skateboard to integrate the drive plate and guide mechanism, the thickness of the base can be reduced, making its appearance more compact, neat and beautiful.

[0014] 3. The innovatively designed drive arm and drive plate directly contact the transmission structure, eliminating the intermediate connecting rod. The closing force is transmitted in a single stage from drive arm → slide plate → buffer, which improves the power transmission efficiency.

[0015] 4. The separate installation structure of the slide plate and the buffer allows the user to remove the buffer for replacement and maintenance, reducing the subsequent use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a rendering of the present invention and the cabinet assembly.

[0017] Figure 2 , 3 This is a schematic diagram of the hinge in the present invention being in an open state.

[0018] Figure 4 This is a schematic diagram of the hinge in the present invention being in a closed state.

[0019] Figure 5 This is a cross-sectional view of the structure of the hinge in the open state in the present invention.

[0020] Figure 6 This is a cross-sectional view of the structure of the hinge in the closed state in the present invention.

[0021] Figure 7 , 8 It is a structural exploded view of the present invention.

[0022] Fig. 9 This is an exploded view of the slide plate and hinge arm of the present invention. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings. An external buffer hardware hinge, comprising a hinge cup 1 and a base 2, the hinge cup 1 and the base 2 are hingedly connected 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 slide plate 5 is slidably mounted on the bottom of the hinge cup 1, guide plates 51 extend upward on both sides of the slide plate 5, the guide plates 51 cover the outer side wall of the hinge cup 1, a limit plate 52 extends from the top of the guide plate 51 toward the hinge cup 1, and the limit plate 52 is slidably mounted in a guide groove 11 on the outer side wall of the hinge cup 1; The bottom of the hinge cup 1 is provided with an air-avoiding groove 12 through the body thereof, and the top of the slide plate 5 is provided with a driving plate 53 extending into the air-avoiding groove 12. The upper hinge arm 3 is provided with a driving arm 31 away from the hinge point between the upper hinge arm 3 and the hinge cup 1. When the hinge is closed, the driving arm 31 and the driving plate 53 are pressed against each other to push the slide plate 5 to move. The hinge cup 1 is also provided with a buffer 6 , which acts on the slide plate 5 to slow down the movement speed of the slide plate 5 .

[0024] In one embodiment, a mounting groove 13 is concavely disposed at the bottom of the hinge cup 1 , and the buffer 6 is mounted in the mounting groove 13 .

[0025] In one embodiment, the installation groove 13 is arranged through the outer bottom and the front end surface of the hinge cup 1 , the slide plate 5 extends into the installation groove 13 with a support plate 54 , and the buffer 6 is connected to the support plate 54 .

[0026] In one of the embodiments: the upper hinge arm 3 is further provided with a reset arm 32, and the reset arm 32 is arranged 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, and the reset arm 32 extends into the reset groove 55 and slides.

[0027] In one embodiment, the slide plate 5 is further provided with a locking plate 56 extending into the air-avoiding groove 12 .

[0028] In one embodiment, the buffer is a compression damping type hydraulic buffer, the cylinder portion of the buffer is fixed in the mounting groove, and the piston rod of the buffer is connected to the support plate 54.

[0029] 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 to realize the opening and closing function of the hinge.

[0030] When the hinge swings from the closed state to the open state, the hinge cup 1 drives the entire hinge system to open and close 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 to complete the opening action of the hinge through relative movement with the upper hinge arm 3 and the lower hinge arm 4.

[0031] When the hinge is closed, the driving arm 31 and the driving plate 53 squeeze each other, pushing the slide plate 5 to move along the guide groove 11 of the hinge cup 1. This process enables the slide plate 5 to move smoothly along the guide rail. At the same time, in this case, a buffer 6 is installed in the hinge cup 1, which acts on the slide plate 5 to slow down the movement speed of the slide plate, thereby generating a buffering effect on the closing of the hinge and avoiding excessive impact force when the hinge is closed.

[0032] Furthermore: In this case, a reset arm 32 is installed on the upper hinge arm 3, and 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 return to the normal position during the opening process, preparing for the next reset of the hinge.

[0033] It should be noted that a guide plate 51 and a limit plate 52 are provided on the outside of the hinge cup 1. The limit 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 precision of the hinge during the opening and closing process.

[0034] Compared with the conventional technology, the buffer 6 in the present invention can effectively slow down the opening and closing speed of the hinge, avoid violent collision between metal parts, thereby reducing friction and extending the service life of the hinge. In addition, the design of the buffer makes the hinge more stable during the opening and closing process, improving the user experience.

[0035] Furthermore, in conventional hinge designs, the buffer is usually arranged inside the hinge cup or in direct contact with other components, which may cause the structure to appear messy and affect the appearance. However, the buffer is installed on the outside of the hinge cup 1, which greatly simplifies the internal structure of the hinge cup and makes the external contour smoother.

[0036] At the same time, the buffer installed on the outside can effectively avoid the protrusions or complex components in the traditional design, improve the overall aesthetics of the hinge, and meet the demand for refined appearance of modern home and industrial products.

[0037] Save space and keep the internal structure tidy: In addition, after the buffer 6 is arranged outside the hinge cup 1, the interior of the hinge cup can be kept simple and neat. This design not only avoids the space inside the hinge cup being occupied, but also allows other important components such as the slide plate and the drive plate to have enough space for precise matching, ensuring the stability and efficient operation of the hinge. The configuration of the outer buffer reduces the interference with the internal space, making the internal structure of the hinge cup more compact and efficient.

[0038] In addition, since the buffer 6 is located outside the hinge cup, its installation and removal are relatively simple, which is convenient for later maintenance and replacement. The user can easily check and replace the buffer without disassembling other internal parts, which improves the convenience of maintenance.

[0039] In summary, in modern design, the appearance design and functionality of the product are important considerations for customers when purchasing. By setting the buffer on the outside of the hinge cup, not only the process accuracy and structural optimization of the product are improved, but also its competitiveness in the market is enhanced. Consumers tend to have a high degree of acceptance for neat, simple and efficient designs, which improves the overall value of the product and enhances the overall product competitiveness.

[0040] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An external buffer hardware hinge, comprising a hinge cup (1) and a base (2), wherein the hinge cup (1) and the base (2) are hingedly connected via 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: A slide plate (5) is slidably mounted on the bottom of the hinge cup (1) in a forward and backward manner, guide plates (51) are extended upwardly on both sides of the slide plate (5), the guide plates (51) cover the outer wall of the hinge cup (1), and a limit plate (52) is extended toward the hinge cup (1) from the top of the guide plate (51), the limit plate (52) is slidably mounted in a 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) penetrating through the body thereof, the top of the slide plate (5) is provided with a driving plate (53) extending into the clearance groove (12), and the upper hinge arm (3) is provided with a driving arm (31) deviating from the hinge point between the upper hinge arm (3) and the hinge cup (1), and when the hinge is closed, the driving arm (31) and the driving plate (53) are pressed against each other to push the slide plate (5) to move; A buffer (6) is also installed on the hinge cup (1), and the buffer (6) 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 concavely provided with a mounting groove (13), and the buffer (6) is mounted in the mounting groove (13).

3. The external buffer hardware hinge according to claim 2, characterized in that: The mounting groove (13) is arranged through the outer bottom and front end surface of the hinge cup (1); the slide plate (5) has a support plate (54) extending into the mounting groove (13); 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), and the reset arm (32) is arranged 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), and the reset arm (32) extends into the reset groove (55) to slide.

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 air avoidance 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 installation groove, and the piston rod of the buffer is connected to the support plate (54).

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