Hinge with buffering function and cabinet using same

By using a buffer assembly composed of permanent magnets or springs, the problem of elastic decay caused by complex force on traditional torsion springs is solved, achieving a stable buffering effect and extending service life.

CN223838899UActive Publication Date: 2026-01-27SHENZHEN COLORLIGHT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520173979.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-01-27
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

Traditional torsion spring hinges have multiple stress points, and their elasticity decreases after long-term use, resulting in a weakened cushioning effect and affecting the user experience and lifespan.

Method used

The buffer assembly, consisting of mutually repelling permanent magnet blocks or springs, is used as the power component. It has a single and stable force direction and provides a damping effect through magnetic repulsion or elastic deformation, thus avoiding friction and wear of the components.

Benefits of technology

It extends the lifespan of the hinge, provides stable cushioning, reduces noise and vibration, and improves the user experience and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hinge with buffering and a cabinet using the same, the hinge comprises a fixed part, a rotating part, a connecting part and a buffering assembly, the head end of the fixed part is hinged with the tail end of the connecting part, and the head end of the connecting part is hinged with the tail end of the rotating part; the buffering assembly comprises a cover body, a power piece and a movable block, the cover body is fixedly installed on the fixing piece, an opening of the cover body is close to the connecting piece, the power piece is installed on the inner wall of the cover body, the movable end of the power piece is movably connected with the movable block, the movable block is slidably connected with the inner wall of the cover body, and the end of the movable block penetrates out of the opening of the cover body and movably abuts against the connecting piece. According to the torsion spring, the power piece is always only subjected to the acting force inwards abutting against the movable block, the stress direction is single and stable, the damage risk caused by uneven stress or complex stress of a power assembly is greatly reduced, and the problems that due to the fact that a traditional torsion spring is large in number of stress points, elasticity attenuation is prone to occurring after long-term use, and the service life of the torsion spring is prolonged are solved. And the hinge loses the damping effect.
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Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically a hinge with a buffer and a cabinet using the same. Background Technology

[0002] Traditional hinge structures primarily rely on torsion springs to achieve a buffering and damping function. During daily use, when connected objects such as cabinet doors and windows are opened and closed, the torsion spring provides corresponding resistance through its own elastic deformation, thereby achieving a buffering and damping effect, making the opening and closing process relatively smooth and preventing collisions or shaking caused by excessive speed.

[0003] However, torsion springs must withstand stresses of varying magnitudes from multiple directions. Each time a cabinet door or drawer is opened or closed, the torsion spring not only has to overcome the object's own weight but also cope with additional stresses caused by changes in opening and closing speed and angle. Over time, these complex and variable stresses cause the torsion spring to gradually deform, its elasticity to decrease, and it eventually loses its damping effect. This results in objects opening and closing stiffly and being prone to impacts, severely affecting the user experience and lifespan. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model proposes a hinge with buffer and a cabinet using it. The power component is always subjected to the force of the inward pressing moving block, and the force direction is singular and stable. This greatly reduces the risk of damage to the power component due to uneven or complex force. It also solves the problem that traditional torsion springs are prone to elasticity decay after long-term use due to multiple force points, resulting in the hinge losing its damping effect.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A buffered hinge includes a fixed member, a rotating member, a connecting member, and a buffer assembly, wherein the first end of the fixed member is hinged to the end of the connecting member, and the first end of the connecting member is hinged to the end of the rotating member.

[0007] The buffer assembly includes a cover, a power component, and a movable block. The cover is fixedly installed on the fixing component. The opening of the cover is located near the connecting component. The power component is installed on the inner wall of the cover. The movable end of the power component is movably connected to the movable block. The movable block is slidably connected to the inner wall of the cover. The power component is used to continuously drive the movable block to move towards the opening of the cover. The end of the movable block protrudes from the opening of the cover and movably abuts against the connecting component.

[0008] When an external force is applied to the rotating component and causes the connecting component to rotate towards the cover, the connecting component abuts against the movable block, causing the movable block to slide towards the inner wall of the cover.

[0009] The power component also includes a first magnetic block and a second magnetic block. The first magnetic block is fixedly installed on the inner wall of the cover, and the second magnetic block is fixedly installed on the end of the movable block near the first magnetic block. The first magnetic block and the second magnetic block repel each other.

[0010] Both the first magnetic block and the second magnetic block are permanent magnets.

[0011] The power component is a spring, one end of which is fixedly connected to the inner wall of the cover, and the other end of which is fixedly connected to the inner wall of the movable block.

[0012] An adjusting member is provided at the end of the cover away from the opening. The movable end of the adjusting member is threaded through the side wall of the cover and fixedly connected to the mounting end of the power component. The adjusting member is used to adjust the position of the mounting end of the power component inside the cover.

[0013] The fastener is provided with an mounting component, the end of which is threadedly connected to the cover.

[0014] A cabinet includes a cabinet body, a cabinet door, and a buffered hinge, wherein the fixing member is fixedly installed on the side away from the buffer assembly on the cabinet body, and the rotating member is fixedly installed on the side away from the buffer assembly on the cabinet door.

[0015] The technical solution of this utility model can include the following beneficial effects:

[0016] 1. The power component is always subjected to the inward pressing force of the moving block. The force direction is singular and stable, which greatly reduces the risk of damage to the power component due to uneven or complex force. It solves the problem that traditional torsion springs are prone to elasticity decay after long-term use due to multiple force points, which leads to the loss of damping effect of the hinge.

[0017] 2. The power components are a first magnetic block and a second magnetic block that repel each other, so that the first magnetic block and the second magnetic block can produce a damping effect without physical contact, which effectively reduces friction and wear between components and extends the service life of the hinge. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the hinge opening according to one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the hinge being closed according to one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the hinge opening according to another embodiment of the present invention;

[0021] Among them, 1. fixed component; 2. rotating component; 3. connecting component; 4. buffer assembly; 41. cover; 42. power component; 421. first magnetic block; 422. second magnetic block; 423. spring; 43. movable block; 44. adjusting component; 5. mounting component. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] In the description of this utility model, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "assembly," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The following is combined with Figures 1 to 3 This invention describes a buffered hinge and a cabinet using the same, according to an embodiment of the present invention.

[0027] A buffered hinge includes a fixing member 1, a rotating member 2, a connecting member 3, and a buffer assembly 4. The first end of the fixing member 1 is hinged to the end of the connecting member 3, and the first end of the connecting member 3 is hinged to the end of the rotating member 2.

[0028] The buffer assembly 4 includes a cover 41, a power component 42, and a movable block 43. The cover 41 is fixedly installed on the fixing component 1. The opening of the cover 41 is located close to the connecting component 3. The power component 42 is installed on the inner wall of the cover 41. The movable end of the power component 42 is movably connected to the movable block 43. The movable block 43 is slidably connected to the inner wall of the cover 41. The power component 42 is used to continuously drive the movable block 43 to move towards the opening of the cover 41. The end of the movable block 43 protrudes from the opening of the cover 41 and movably abuts against the connecting component 3.

[0029] When an external force is applied to the rotating member 2 and drives the connecting member 3 to rotate towards the cover 41, the connecting member 3 is used to abut against the movable block 43, causing the movable block 43 to slide towards the inner wall of the cover 41.

[0030] The movable component is slidably connected to the inner wall of the cover 41, and the power component 42 always drives the movable block 43 to move towards the opening end of the cover 41.

[0031] When an external force is applied to the rotating component 2, the rotating component 2 will drive the connecting component 3 to rotate closer to the cover 41. During this process, the connecting component 3 will contact the movable block 43 and press against the movable block 43, causing the movable block 43 to be subjected to a force that tilts inward toward the cover 41. Since the movable block 43 is slidably connected to the inner wall of the cover 41, the cover 41 can restrict the direction of movement of the movable block 43, causing the movable block 43 to slide toward the inner wall of the cover 41 under the action of the connecting component 3 and press inward against the power component 42.

[0032] Since the power component 42 always drives the movable block 43 to move towards the opening end of the cover 41, the direction of the force exerted by the connecting component 3 on the movable block 43 is opposite to the direction of the force exerted by the power component 42 on the movable block 43, thus forming a very effective damping and buffering effect, effectively reducing the movement speed and impact force of the rotating component 2, thereby avoiding the collision noise, damage or injury risk that may be caused by the hinge closing or opening quickly, and improving the safety of use.

[0033] Compared to traditional torsion springs, which experience elastic decay due to stresses of varying magnitudes from multiple directions during complex opening and closing processes, the buffer assembly 4 in this solution only experiences the force of the inward pressing movable block 43 on the power component 42. The force direction is singular and stable, which greatly reduces the risk of damage to the power component due to uneven or complex force distribution. This solves the problem that traditional torsion springs, due to multiple force points, are prone to elastic decay after long-term use, causing the hinge to lose its damping effect.

[0034] The power component 42 also includes a first magnetic block 421 and a second magnetic block 422. The first magnetic block 421 is fixedly installed on the inner wall of the cover 41, and the second magnetic block 422 is fixedly installed on the end of the movable block 43 near the first magnetic block 421. The first magnetic block 421 and the second magnetic block 422 repel each other.

[0035] In this embodiment, the power component 42 consists of a first magnetic block 421 and a second magnetic block 422 that repel each other, so that the first magnetic block 421 and the second magnetic block 422 can generate a damping effect without physical contact, effectively reducing friction and wear between components and extending the service life of the hinge.

[0036] Moreover, the magnetic repulsion force can be smoothly adjusted as the distance between the first magnetic block 421 and the second magnetic block 422 changes. Thus, when the rotating part 2 is subjected to external force, the magnetic repulsion force gradually increases from weak to strong, thereby providing a gradual and controllable buffering effect, making the hinge more stable during opening and closing, and reducing noise and vibration.

[0037] Furthermore, when an external force acts in the opposite direction, the magnetic repulsion can push the movable block 43 towards the opening of the cover 41, thereby assisting the movement of the rotating component 2. At this time, the user can open the cabinet door with less force, improving the user experience.

[0038] Both the first magnetic block 421 and the second magnetic block 422 are permanent magnets.

[0039] It is worth noting that the permanent magnet can maintain its magnetism for a long time without the need for an external power source or current, and is not easily affected by the external environment (such as temperature and humidity). This ensures that the buffering effect of the hinge in this solution is durable and stable, effectively solving the problem that traditional torsion springs will be damaged after long-term use, causing the hinge to lose its damping effect.

[0040] In another embodiment of this solution: the power component 42 is a spring 423, one end of the spring 423 is fixedly connected to the inner wall of the cover 41, and the other end of the spring 423 is fixedly connected to the inner wall of the movable block 43.

[0041] When an external force is applied to the rotating part 2, the rotating part 2 will drive the connecting part 3 to rotate towards the cover 41, so that the rotating part 2 presses against the movable block 43, causing the movable block 43 to slide towards the inner wall of the cover 41 and press against the spring 423 inward.

[0042] At this time, spring 423 undergoes elastic deformation within the cover 41 under the action of movable block 43. After elastic deformation, spring 423 applies a reaction force to movable block 43. As the degree of compression of spring 423 increases, the outward elastic force generated by spring 423 also increases accordingly, so that connector 3, spring 423 and movable block 43 together form a highly effective damping buffer structure.

[0043] Compared to traditional torsion spring hinges, which are prone to elasticity decay after long-term use due to multiple stress points, the spring 423 in this embodiment is always subjected to a force in one direction, which greatly reduces the risk of damage to the spring 423 due to complex stress.

[0044] An adjusting member 44 is provided at the end of the cover 41 away from the opening. The movable end of the adjusting member 44 is threaded through the side wall of the cover 41 and fixedly connected to the mounting end of the power member 42. The adjusting member 44 is used to adjust the position of the mounting end of the power member 42 inside the cover 41.

[0045] The rotating adjustment component 44 can precisely adjust the position of the power component 42 within the cover 41, thereby adjusting the buffering effect of the hinge in this solution to meet different application scenarios and user preferences.

[0046] The adjusting component 44 is fixedly connected to the first magnetic block 421. Rotating the adjusting component 44 adjusts the position of the first magnetic block 421 within the cover 41, thereby changing the distance between the first magnetic block 421 and the second magnetic block 422, which directly affects the magnitude of the magnetic repulsion force. When a stronger buffering force is needed, the distance between the first magnetic block 421 and the second magnetic block 422 can be shortened by adjusting the adjusting component 44 to increase the magnetic repulsion force; conversely, if a slightly weaker buffering force is desired, the distance between the first magnetic block 421 and the second magnetic block 422 can be increased to decrease the magnetic repulsion force.

[0047] In another embodiment, the adjusting member 44 is fixedly connected to the mounting end of the spring 423. By rotating the adjusting key, the preload of the spring 423 can be precisely adjusted. Adjusting the mounting end of the spring 423 towards the opening of the cover 41 increases the preload of the spring 423, providing stronger damping force throughout the buffering process. Adjusting the mounting end of the spring 423 away from the opening of the cover 41 reduces the preload position, resulting in a relatively weaker buffering force from the spring 423 in the initial stage.

[0048] The fastener 1 is provided with an mounting component 5, and the end of the mounting component 5 is threadedly connected to the cover 41.

[0049] The threaded connection design allows the cover 41 to be quickly and easily installed on the fixing part 1. When disassembly is required, the cover 41 can be quickly removed by rotating the mounting part 5 in the opposite direction, reducing the difficulty of installing and maintaining the hinge in this solution and improving work efficiency.

[0050] A cabinet, characterized in that it includes a cabinet body, a cabinet door, and a hinge with buffer;

[0051] The fastener 1 is fixedly installed on the cabinet body on the side away from the buffer assembly 4, and the rotating part 2 is fixedly installed on the cabinet door on the side away from the buffer assembly 4.

[0052] The cabinet features cushioned hinges that effectively slow down the opening and closing speed of the cabinet doors, preventing collisions and noise caused by rapid opening and closing. Users will experience a smoother and more stable operation, greatly enhancing user comfort.

[0053] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A hinge with a buffer, characterized in that, It includes a fixing component, a rotating component, a connecting component, and a buffer assembly. The first end of the fixing component is hinged to the end of the connecting component, and the first end of the connecting component is hinged to the end of the rotating component. The buffer assembly includes a cover, a power component, and a movable block. The cover is fixedly installed on the fixing component. The opening of the cover is located near the connecting component. The power component is installed on the inner wall of the cover. The movable end of the power component is movably connected to the movable block. The movable block is slidably connected to the inner wall of the cover. The power component is used to continuously drive the movable block to move towards the opening of the cover. The end of the movable block protrudes from the opening of the cover and movably abuts against the connecting component. When an external force is applied to the rotating component and causes the connecting component to rotate towards the cover, the connecting component abuts against the movable block, causing the movable block to slide towards the inner wall of the cover.

2. A buffered hinge according to claim 1, characterized in that, The power component also includes a first magnetic block and a second magnetic block. The first magnetic block is fixedly installed on the inner wall of the cover, and the second magnetic block is fixedly installed on the end of the movable block near the first magnetic block. The first magnetic block and the second magnetic block repel each other.

3. A hinge with buffer according to claim 2, characterized in that, Both the first magnetic block and the second magnetic block are permanent magnets.

4. A hinge with buffer according to claim 1, characterized in that, The power component is a spring, one end of which is fixedly connected to the inner wall of the cover, and the other end of which is fixedly connected to the inner wall of the movable block.

5. A hinge with cushioning according to claim 1, characterized in that, An adjusting member is provided at the end of the cover away from the opening. The movable end of the adjusting member is threaded through the side wall of the cover and fixedly connected to the mounting end of the power component. The adjusting member is used to adjust the position of the mounting end of the power component inside the cover.

6. A hinge with buffer according to claim 1, characterized in that, The fastener is provided with an mounting component, the end of which is threadedly connected to the cover.

7. A cabinet, characterized in that, Includes a cabinet body, cabinet doors, and a buffered hinge as described in any one of claims 1-6; The fastener is fixedly installed on the cabinet body on the side away from the buffer assembly, and the rotating part is fixedly installed on the cabinet door on the side away from the buffer assembly.