Hydraulic buffering hinge

Abstract

A hydraulic buffering hinge comprises a hinge cup and a hinge arm, the hinge cup and the hinge arm are hinged through an upper connecting rod and a lower connecting rod, the two sides of the hinge cup penetrate through a body to be provided with installation grooves, supporting shells are fixedly installed on the installation grooves respectively, and the supporting shells extend towards the interior of the hinge cup to form pressing plates. The space between the pressing plate and the inner bottom of the hinge cup is hollowed to form a limiting area; a sliding plate is mounted in the limiting area in a sliding manner; a damper is mounted between the sliding plate and the hinge cup; the upper connecting rod extends towards the direction of the sliding plate to be provided with a driving arm, and when the hinge is closed, the driving arm pushes the sliding plate to move to generate a damping effect when the hinge is closed. The buffer mechanism has the advantages that the size of the hinge arm is obviously reduced, and the size of the hinge arm is greatly reduced due to the fact that the buffer mechanism does not occupy the space of the hinge arm any more. Due to the compact design, the physical occupied space of the hinge arm is reduced, so that the hinge arm is more flexible to install and use, and is suitable for various furniture sizes and styles.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hardware hinge, in particular to a hydraulic buffer hinge. BACKGROUND

[0002] As an indispensable connecting component in furniture, cabinets and other home products, the performance of the hydraulic buffer hinge directly affects the user experience and durability of the product. With the improvement of consumers' quality requirements for home products, the hydraulic buffer hinge gradually becomes the focus of the market due to its characteristics of reducing the impact force when the door panel is closed, reducing noise and prolonging the service life. However, despite the significant advantages of the hydraulic buffer hinge in function, the design in the prior art still has many shortcomings, especially in the setting position of the buffer device, the design of the transmission mechanism and the balance of the buffer force, which needs to be improved.

[0003] In the traditional design of the hydraulic buffer hinge, the buffer device is usually arranged inside the hinge arm and connected with the upper link or the lower link through a complex linkage mechanism to realize the damping effect when the hinge is closed. Although this design achieves the buffering function to some extent, it exposes a series of problems in actual application:

[0004] 1. For example, since the buffer device is directly installed inside the hinge arm, the size of the hinge arm must be increased to accommodate the buffer device and its related components. This design results in an oversized hinge arm, which not only limits the installation flexibility of the hinge, but also makes it look bulky, which is contrary to the simple and delicate style pursued by modern home design, and reduces the overall aesthetic appearance.

[0005] 2. The buffer device needs to be connected with the upper link or the lower link through a multi-stage linkage mechanism. This complex design significantly increases the structural complexity of the hinge. The manufacturing and assembly difficulty is also increased, resulting in a significant increase in production cost. In addition, the complex linkage mechanism is prone to failure due to wear or fatigue, such as loose linkage or damping failure, which reduces the reliability and durability of the hinge.

[0006] 3. The hydraulic buffer hinge in the prior art has a significant defect in the control of the buffer force, which is difficult to achieve an ideal balance between the closing speed and the complete closing. Specifically, it has the following two aspects; A: When the buffer force is designed to be small, the speed of the door leaf when closing cannot be effectively slowed down, resulting in too fast closing speed. This situation not only produces a large impact force and noise, affecting the user experience, but also causes impact damage to the door leaf and the hinge itself. Long-term use, frequent impact will accelerate the wear of the hinge, shorten its service life, and even may pinch the user's finger due to the rapid closing, which poses a safety hazard.

[0007] B: In order to avoid the problem of too fast closing speed, some designs slow down the closing speed by increasing the buffering force. However, this often leads to another extreme problem: due to the excessive damping effect, the door leaf cannot be completely closed after a certain extent, leaving a gap. This not only affects the sealing and aesthetics of the door leaf, but also may cause the door leaf to open unexpectedly under slight external force, reducing the user experience and safety, so it is necessary to further improve it. Utility model content

[0008] The utility model aims at overcoming the shortcoming of prior art, provide a simple structure, optimize the setting position and transmission mode of buffer device, and solve the problem of insufficient buffering force balance, realize the closing effect of door leaf of stable, quiet and completely closed, thereby improve the overall performance and user experience of hinge, a hydraulic buffer hinge.

[0009] The utility model aims at overcoming the short drawback of prior art, provide a simple structure, optimize the setting position and transmission mode of buffer device, and solve the problem of insufficient buffering force balance, realize the closing effect of door leaf of stable, quiet and completely closed, thereby improve the overall performance and user experience of hinge, a hydraulic buffer hinge.

[0010] The limiting area is hollow between the pressing plate and the inner bottom of the hinge cup;

[0011] The upper connecting rod is provided with a driving arm extending to the direction of the sliding plate, and the driving arm pushes the sliding plate to move when the hinge is closed, generating the damping effect when the hinge is closed.

[0012] Further, the inner side wall of the support shell is provided with a plurality of elastic buckles, and a plurality of installation holes are formed in the outer side wall of the hinge cup in correspondence, and the support shell is fixed in the installation hole by the elastic buckle.

[0013] Further, the bottom of the pressing plate extends downward to a height-limiting plate, and the height-limiting plate is supported on the inner bottom of the hinge cup, and the side wall of the sliding plate slides on the inner side surface of the height-limiting plate.

[0014] Further, the top of the sliding plate extends upward to be provided with a driving plate, the driving arm is connected with the driving plate, and the driving arm pushes the sliding plate to move through the driving plate.

[0015] Further, the sliding plate extends outward on both sides to be provided with a first damping plate and a second damping plate, and the first damping plate and the second damping plate extend into the installation slot on both sides and are connected with the damper.

[0016] Further, the supporting shell is internally provided with a containing cavity, the damper is installed in the containing cavity, a hollow slot is formed in the side wall of the containing cavity and is in communication with the inner part of the hinge cup, and the first damping plate or the second damping plate passes through the hollow slot and enters the containing cavity to be connected with the damper.

[0017] Further, the front end of the first damping plate is upwardly extended and provided with a first baffle, the rear end of the second damping plate is upwardly extended and provided with a second baffle, and the piston rod part of the damper extends into the active stroke of the first baffle and the second baffle.

[0018] Further, the damper is a self-resetting hydraulic buffer oil cylinder.

[0019] Further, the slide plate, the driving plate, the first damping plate, the second damping plate, the first baffle and the second baffle are integrally stamped and formed from a metal plate.

[0020] The utility model discloses the beneficial effect is: 1, simple structure, low production cost, improve market competitiveness.

[0021] 2, the volume of the hinge arm is significantly reduced, because the buffering mechanism no longer occupies the space of the hinge arm, the size of the hinge arm can be greatly reduced. This compact design reduces the physical space occupied by the hinge arm, making it more flexible in installation and use, suitable for various furniture sizes and styles.

[0022] 3, the appearance is more beautiful and neat, and the smaller hinge arm presents a more simple and modern appearance, which meets the delicate and simple style pursued by current home design and improves the overall visual effect of the furniture.

[0023] 4, the hinge cup and the buffering mechanism inside it are designed to be embedded in the plate material and completely hidden from view. This hidden installation not only further improves the flatness and aesthetics of the furniture surface, but also provides additional protection for the buffering mechanism, preventing external dust, moisture or accidental impact from causing damage, thereby improving the durability and reliability of the hinge.

[0024] 5, the synergistic effect of the double dampers provides a smoother damping curve, allowing the door leaf to maintain a stable deceleration state throughout the closing process. Compared with the traditional single-damper design, the closing action of the utility model is smoother and has no obvious jerk, improving the user's comfort. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is an effect diagram of the hinge in the open state in the utility model.

[0026] Figure 2 It is an effect diagram of the hinge in the closed state in the utility model.

[0027] Figure 3The structure section view of the hinge in the open state of the utility model.

[0028] Figure 4 The structure section view of the hinge in the closed state of the utility model.

[0029] Figure 5 The structure exploded view of the utility model.

[0030] Figure 6 The structure exploded view of the slide plate and the supporting leg in the utility model.

[0031] Figure 7 The structure schematic view of the slide plate in the utility model.

[0032] Figure 8 The structure schematic view of the supporting shell in the utility model. DETAILED DESCRIPTION

[0033] The utility model discloses a hydraulic buffering hinge, which comprises a hinge cup 1 and a hinge arm 2, and the hinge cup 1 and the hinge arm 2 are hingedly connected through an upper connecting rod 3 and a lower connecting rod 4. The upper connecting rod 3 and the lower connecting rod 4 swing relative to the hinge arm 2 and the hinge cup 1 to realize the opening and closing of the hinge. The hinge cup 1 is provided with mounting grooves 11 penetrating through the body on both sides. Supporting shells 5 are fixedly installed on the mounting grooves 11. The supporting shells 5 extend inwards and are provided with pressing plates 51. The pressing plates 51 and the inner bottom of the hinge cup 1 form a limiting area 6.

[0034] A slide plate 7 is slidably installed in the limiting area 6. A damper 8 is installed between the slide plate 7 and the hinge cup 1.

[0035] The upper connecting rod 3 is provided with a driving arm 31 extending towards the slide plate 7. When the hinge is closed, the driving arm 31 pushes the slide plate 7 to move, thereby generating the damping effect when the hinge is closed.

[0036] In one embodiment, the inner side wall of the supporting shell 5 is provided with a plurality of elastic buckles 52. Correspondingly, a plurality of mounting holes 12 are formed in the outer side wall of the hinge cup 1. The supporting shell 5 is clamped and fixed in the mounting holes 12 through the elastic buckles 52.

[0037] In one embodiment, the bottom of the pressing plate 51 extends downwards and is provided with a limiting plate 53. The limiting plate 53 is supported on the inner bottom of the hinge cup 1. The side wall of the slide plate 7 slides on the inner side of the limiting plate 53.

[0038] In one embodiment, the top of the slide plate 7 extends upwards and is provided with a driving plate 71. The driving arm 31 is connected with the driving plate 71. The driving arm 31 pushes the slide plate 7 to move through the driving plate 71.

[0039] In one of the embodiments, the slide plate 7 extends outwardly on both sides with a first damping plate 72 and a second damping plate 73, which extend into the mounting slots 11 on both sides and are connected with the dampers 8.

[0040] In one of the embodiments, the support shell 5 is provided with a receiving cavity 54, in which the damper 8 is installed, and the sidewall of the receiving cavity 54 is provided with a clearance groove 55, which is communicated with the inside of the hinge cup 1, and the first damping plate 72 or the second damping plate 73 passes through the clearance groove 55 and enters the receiving cavity 54 to be connected with the damper 8.

[0041] In one of the embodiments, the front end of the first damping plate 72 is provided with a first baffle 74 extending upwardly, the rear end of the second damping plate 73 is provided with a second baffle 75 extending upwardly, and the piston rod part of the damper 8 extends into the active stroke of the first baffle 74 and the second baffle 75.

[0042] In one of the embodiments, the damper 8 is a self-resetting hydraulic buffer cylinder.

[0043] In one of the embodiments, the slide plate 7, the drive plate 71, the first damping plate 72, the second damping plate 73, the first baffle 74 and the second baffle 75 are integrally stamped and formed by a metal plate.

[0044] Working principle: when the door leaf starts to close, as the door leaf closes, the upper connecting rod 3 swings relative to the hinge arm 2 and the hinge cup 1, and the drive arm 31 extending upwardly starts to act. The drive arm 31 is connected with the drive plate 71 at the top of the slide plate 7, and by pushing the drive plate 71, the slide plate 7 is driven to slide linearly in the limiting area 6. This direct transmission design simplifies the complex connecting rod mechanism in the traditional hinge, reduces the mechanical failure points, and improves the reliability.

[0045] It should be noted that the first damping plate 72 and the second damping plate 73 extend outwardly on both sides of the slide plate 7 and are connected with the two dampers 8 respectively. The front end of the first damping plate 72 is provided with a first baffle 74. When the slide plate 7 slides, the first baffle 74 first contacts the piston rod of the first damper 8, pushes it to compress, and generates an initial damping force. The damping effect in this stage slows down the initial speed of the door leaf closing, avoiding the impact and noise caused by too fast closing.

[0046] As the sliding plate 7 continues to slide backward, the second baffle 75 arranged at the rear end of the second damping plate 73 subsequently contacts the piston rod of the second damper 8, pushing it to compress. At this time, both dampers work simultaneously, further enhancing the damping effect, ensuring that the door leaf slows down further when approaching full closure, and finally achieving soft closing. This segmented damping mechanism, in which the first damper intervenes first and the second damper intervenes later, divides the closing process into multiple controlled stages, significantly improving the smoothness and stability of the door closing.

[0047] When the door leaf is fully closed, the sliding plate 7 slides to the end of the stroke, and both dampers 8 are in a compressed state, providing damping force to ensure that the door leaf is smoothly positioned without rebound or gap. This segmented damping design overcomes the single damping force of traditional hinges, avoiding the problems of "closing too fast" or "not being able to fully close", while significantly reducing the noise during closing and achieving a silent effect.

[0048] When the door leaf is re-opened, the upper connecting rod 3 swings in the opposite direction, releasing the pushing force of the driving arm 31 on the sliding plate 7. Both dampers 8 are self-resetting hydraulic buffer cylinders, and under the action of internal springs or hydraulic pressure, the piston rod automatically extends, pushing the sliding plate 7 back to the initial position, ready for the next closing action. This self-resetting feature ensures the cyclic use performance of the hinge, enhancing durability.

[0049] Compared with traditional technology, in the present case, the damping mechanism is arranged in the hinge cup 1 and fixed through the mounting groove 11 and the support shell 5, and the entire mechanism is embedded in the door leaf plate to be hidden. This design simplifies the function of the hinge arm 2 to a connecting component, significantly reducing its size and making the appearance more simple and neat. Compared with the bulky design of traditional hinge buffer devices installed in the hinge arm, the present utility model improves the aesthetics of furniture and protects the internal mechanism from external damage.

[0050] At the same time, the two dampers 8 intervene in the closing process in front and back, forming a unique damping curve: the initial damping slows down the speed, and the subsequent damping ensures soft closing. This segmented action not only makes the door closing process smoother and more stable, avoiding jerks, but also significantly reduces noise by controlling impact force, making it particularly suitable for situations that require a quiet environment, such as bedrooms or high-end furniture.

[0051] In addition, the sliding plate 7 activates the damper through the direct pushing of the driving arm 31, replacing the traditional complex linkage mechanism, reducing the number of parts and assembly difficulty. This simplified transmission method reduces production costs while improving the reliability of the mechanical structure.

[0052] In conclusion, in the case, by the drive arm 31 of the upper connecting rod 3 pushes the slide plate 7 to slide, two dampers 8 in the hinge cup 1 are activated in turn, and the segmented damping effect in the closing process is realized.The first damper slows down first when the door leaf is closed, and the second damper intervenes to ensure soft closing;When opening, the damper resets to restore the initial state.This process not only optimizes the function, but also brings the technical advantages of compact size, beautiful and clean, smooth and stable and quiet through design innovation, provides a higher quality solution for modern home, so it can be widely used.

[0053] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model. These changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A hydraulic damping hinge, comprising a hinge cup (1) and a hinge arm (2), the hinge cup (1) and the hinge arm (2) being hingedly connected through an upper connecting rod (3) and a lower connecting rod (4), the upper connecting rod (3) and the lower connecting rod (4) swinging relative to the hinge arm (2) and the hinge cup (1) to realize opening and closing of the hinge, characterized in that: The hinge cup (1) is provided with installation grooves (11) penetrating through the body on both sides, support shells (5) are fixedly installed on the installation grooves (11) respectively, the support shells (5) extend towards the cup inner direction and are provided with pressing plates (51), and the pressing plates (51) and the inner bottom of the hinge cup (1) are hollowed out to form limiting areas (6). ​ The limiting areas (6) are slidably provided with sliding plates (7), and dampers (8) are installed between the sliding plates (7) and the hinge cup (1). The upper connecting rod (3) is provided with a driving arm (31) extending towards the sliding plate (7), and when the hinge is closed, the driving arm (31) drives the sliding plate (7) to move, thereby generating the damping effect when the hinge is closed.

2. Hydraulic cushion hinge according to claim 1, characterized in that The inner side wall of the support shell (5) is provided with a plurality of elastic buckles (52), and correspondingly, a plurality of installation holes (12) are formed on the outer side wall of the hinge cup (1), and the support shell (5) is clamped and fixed in the installation hole (12) through the elastic buckle (52).

3. The hydraulic cushion hinge according to claim 1, wherein: The bottom of the pressing plate (51) extends downwards and is provided with a limiting plate (53), the limiting plate (53) is supported on the inner bottom of the hinge cup (1), and the side wall of the sliding plate (7) slides on the inner side of the limiting plate (53).

4. The hydraulic cushion hinge of claim 1, wherein: The top of the sliding plate (7) is provided with a driving plate (71) extending upwards, the driving arm (31) is connected with the driving plate (71), and the driving arm (31) drives the sliding plate (7) to move through the driving plate (71).

5. Hydraulic cushion hinge according to claim 1 or 4, characterized in that: The sliding plate (7) is provided with a first damping plate (72) and a second damping plate (73) extending outwards on both sides, the first damping plate (72) and the second damping plate (73) extend into the installation grooves (11) on both sides respectively and are connected with the dampers (8).

6. A hydraulic cushion hinge according to claim 5, wherein: The support shell (5) is provided with a containing cavity (54) therein, the damper (8) is installed in the containing cavity (54), the side wall of the containing cavity (54) is provided with an emptying groove (55) in communication with the inside of the hinge cup (1), and the first damping plate (72) or the second damping plate (73) passes through the emptying groove (55) and enters the containing cavity (54) to be connected with the damper (8).

7. A hydraulic cushion hinge according to claim 5, wherein: The front end of the first damping plate (72) is provided with a first baffle (74) extending upwards, the rear end of the second damping plate (73) is provided with a second baffle (75) extending upwards, and the piston rod part of the damper (8) extends into the active stroke of the first baffle (74) and the second baffle (75).

8. A hydraulic cushion hinge according to claim 7, wherein: The damper (8) is a self-resetting hydraulic buffer oil cylinder.

9. A hydraulic cushion hinge according to claim 7, wherein: The sliding plate (7), the driving plate (71), the first damping plate (72), the second damping plate (73), the first baffle (74) and the second baffle (75) are integrally stamped and formed by a metal plate.

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