A type of american cushion hinge

Abstract

The utility model discloses an american buffer hinge, including hinge cup and hinge arm, the hinge cup inside is provided with accommodation cavity, and the one end of hinge arm is equipped with transmission arm part near hinge cup, and transmission arm part is installed in accommodation cavity through first pin shaft hinged, still including reset torsion spring and buffer device, reset torsion spring sets up in accommodation cavity and is used to provide hinge closing force, the buffer device includes slider and buffer, and the buffer sets up on hinge cup and is located accommodation cavity outside, the slider is slid in accommodation cavity and is respectively with transmission arm part and buffer transmission connection. When driving hinge cup closes to certain angle, transmission arm part drives buffer action through slider, and the buffer produces buffer effect to hinge cup to realize closing buffer. Thus, through setting up reset torsion spring in the inside of hinge cup accommodation cavity, only need to set up a reset torsion spring, in addition, through setting up buffer in accommodation cavity outside, utilize the outside space of hinge cup, and it is convenient to maintain replacement.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically to an American-style buffer hinge. Background Technology

[0002] This section provides only background information related to this application to enable those skilled in the art to understand this application more thoroughly and accurately, and it is not necessarily prior art.

[0003] Hinges are mechanical devices used to connect two fixed parts and allow relative rotation between them. They are widely used in furniture, doors, windows, and other fields. Hinges are divided into ordinary hinges and soft-close hinges. Ordinary hinges do not have a soft-close function, while soft-close hinges are widely used in cabinets because of their better soft-close ability. They are used to buffer the impact when opening or closing cabinet doors, preventing damage to the cabinet from excessive collision force between the door and the cabinet body.

[0004] Existing American-style damping hinges typically include components such as a hinge cup, hinge arm, torsion spring, and damping device. Among them, the damping device, as the key component providing damping, is generally located inside the hinge cup cavity, while the torsion spring, as the key component providing elastic force, is generally located outside the hinge cup cavity. The hinge arm is connected to the hinge cup via a pin and is subjected to the torsion force of the torsion spring.

[0005] However, when the above structure is adopted, the buffer device is located inside the hinge cup cavity, which occupies a large internal space and is also more troublesome to maintain and replace; while when the torsion spring is located outside the hinge cup cavity, in order to ensure force balance, torsion springs need to be installed on both sides of the hinge cup, which increases the number of torsion springs and increases the cost. Utility Model Content

[0006] To overcome the shortcomings of the prior art, this utility model provides an American-style buffer hinge. By placing the return torsion spring inside the hinge cup cavity, only one return torsion spring is needed, and it occupies less space. In addition, by placing the buffer outside the hinge cup cavity, the external space of the hinge cup is fully utilized, and maintenance and replacement are convenient.

[0007] The technical solution adopted by this utility model to solve its problem is: An American-style buffer hinge includes a hinge cup and a hinge arm. The hinge cup has a receiving cavity inside. A drive arm is provided at one end of the hinge arm near the hinge cup. The drive arm is hinged to the receiving cavity via a first pin. Wherein: It also includes a reset torsion spring and a buffer device, wherein the reset torsion spring is disposed in the accommodating cavity and is used to provide hinge closing force; The buffer device includes a slider and a buffer, the buffer being disposed outside the receiving cavity; the slider is slidably disposed inside the receiving cavity and is respectively connected to the transmission arm and the buffer; When the hinge cup is closed to a certain angle, the transmission arm drives the buffer to move through the slider, and the buffer provides a buffering effect on the hinge cup to achieve closing buffering.

[0008] As an optional implementation, the transmission arm is provided with a first protrusion, and the slider is provided with a locking hole; when the hinge cup is driven to close to a certain angle, the first protrusion abuts against the locking hole to achieve transmission connection.

[0009] As an optional implementation, the slider is further provided with a second protrusion extending out of the accommodating cavity, and the second protrusion abuts against the telescopic end of the buffer to achieve a transmission connection.

[0010] As an optional implementation, the reset torsion spring is a double torsion spring structure, and a second pin is inserted into the accommodating cavity of the hinge cup, with the double torsion spring structure sleeved on the second pin.

[0011] As an optional implementation, the double torsion spring structure includes a first spring body, a second spring body, and a connecting arm connecting the first spring body and the second spring body respectively. The first spring body is provided with a first support foot, and the second spring body is provided with a second support foot, wherein: Both the first spring body and the second spring body are sleeved on the second pin shaft, the connecting arm abuts against the hinge cup receiving cavity, and both the first support foot and the second support foot abut against the transmission arm.

[0012] As an optional implementation, a decorative cover is also included within the hinge cup receiving cavity, the decorative cover being used to conceal the reset torsion spring and the slider portion.

[0013] As an alternative implementation, at least a portion of the bottom wall of the decorative cover abuts against at least a portion of the top wall of the slider to restrict the slider from moving along the height direction.

[0014] As an optional implementation, at least a portion of the side walls of the hinge cup receiving cavity are abutted against at least a portion of the side walls of the slider to restrict the slider from moving in the horizontal direction.

[0015] As an optional implementation, the buffer includes a cylinder and a piston rod, wherein one of the cylinder and the piston rod is a fixed end, and the other is a telescopic end and is kinetically connected to the slider.

[0016] As an optional implementation, it also includes a mounting base that covers the hinge cup and is located outside the receiving cavity, the mounting base having a mounting slot for mounting the buffer.

[0017] In summary, the American-style buffer hinge provided by this utility model only requires one reset torsion spring by placing the reset torsion spring inside the hinge cup cavity, thus occupying a small space. In addition, by placing the buffer outside the hinge cup cavity, the external space of the hinge cup is fully utilized, and maintenance and replacement are convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the American-style buffer hinge of this utility model; Figure 2 This is an exploded view of the American-style buffer hinge of this utility model; Figure 3 for Figure 1 A structural diagram from another perspective; Figure 4 This is a schematic diagram of the structure of the American-style buffer hinge of this utility model after the decorative cover is hidden. Figure 5 for Figure 4 A structural diagram showing the installation base hidden; Figure 6 This is a schematic diagram of the structure of the American-style buffer hinge of this utility model when it is closed to the start of buffering; Figure 7 This is a schematic diagram of the structure of the American-style buffer hinge of this utility model when it is fully closed.

[0019] The meanings of the reference numerals in the attached figures are as follows: 1. Hinge cup; 11. Receiving cavity; 2. Hinge arm; 21. Transmission arm; 211. First protrusion; 3. Return torsion spring; 31. First spring body; 32. Second spring body; 33. Connecting arm; 34. First support foot; 35. Second support foot; 4. Slider; 41. Locking hole; 42. Second protrusion; 5. Buffer; 51. Cylinder body; 52. Piston rod; 6. Decorative cover; 7. Mounting base; 8. First pin; 9. Second pin. Detailed Implementation

[0020] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 module 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.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0023] See Figure 1-7 This utility model provides an American-style soft-close hinge, including a hinge cup 1 and a hinge arm 2. The hinge cup 1 is used to install on a cabinet door panel, and a receiving cavity 11 is formed inside the hinge cup 1. The hinge arm 2 is used to install on the cabinet door body, and a transmission arm 21 is provided at one end of the hinge arm 2 near the hinge cup 1. The transmission arm 21 is hinged to the receiving cavity 11 via a first pin 8, thereby realizing the hinge engagement between the hinge arm 2 and the hinge cup 1. In addition, it also includes a return torsion spring 3 and a buffer device. The return torsion spring 3 is disposed in the receiving cavity 11 and is used to provide the hinge closing force. The buffer device includes a slider 4 and a buffer 5. The buffer 5 is disposed on the hinge cup 1 and located outside the receiving cavity 11. The slider 4 slides in the receiving cavity 11 and is drivenly connected to the transmission arm 21 and the buffer 5 respectively.

[0024] When the hinge cup 1 is closed to a certain angle, the transmission arm 21 on the hinge arm 2 drives the buffer 5 to move through the slider 4. The buffer 5 provides a buffering effect on the hinge cup 1 to achieve closing buffering.

[0025] Therefore, by placing the reset torsion spring 3 inside the accommodating cavity 11 of the hinge cup 1 instead of outside the hinge cup 1, only one reset torsion spring 3 needs to be installed, and it occupies a small space. In addition, by placing the buffer 5 outside the accommodating cavity 11 of the hinge cup 1, the external space of the hinge cup 1 is fully utilized, and it is also convenient for maintenance and replacement.

[0026] Specifically, the transmission arm 21 is provided with a first protrusion 211, and the slider 4 is provided with a locking hole 41; when the hinge cup 1 is driven to close to a certain angle, the first protrusion 211 abuts against the locking hole 41 to realize the transmission connection; in addition, the slider 4 is also provided with a second protrusion 42 that extends out of the receiving cavity 11, and the second protrusion 42 abuts against the telescopic end of the buffer 5 to realize the transmission connection.

[0027] Therefore, when the hinge cup 1 is closed until the first protrusion 211 on the transmission arm 21 abuts against the locking hole 41 (as shown in the image), Figure 6 As shown), it then continues to drive the hinge cup 1 to close. The first protrusion 211 will drive the slider 4 to slide. The second protrusion 42 on the slider 4 will compress the telescopic end of the buffer 5 to achieve a buffered closure of the hinge cup 1 until the hinge cup 1 is fully closed (as shown). Figure 7 (As shown).

[0028] See Figure 2 and Figure 4 The reset torsion spring 3 is a double torsion spring structure. A second pin 9 passes through the cavity 11 of the hinge cup 1, and the double torsion spring structure is fitted onto the second pin 9. Specifically, the double torsion spring structure includes a first spring body 31, a second spring body 32, and a connecting arm 33 connecting the first spring body 31 and the second spring body 32 respectively. The first spring body 31 is provided with a first support foot 34, and the second spring body 32 is provided with a second support foot 35. Both the first spring body 31 and the second spring body 32 are fitted onto the second pin 9. The connecting arm 33 abuts against the bottom wall of the cavity 11 of the hinge cup 1, and the first support foot 34 and the second support foot 35 abut against the transmission arm 21.

[0029] Therefore, the reset torsion spring 3 provides the elastic force required when the hinge closes. The elastic force applied by the double torsion spring structure makes the hinge close more smoothly and can drive the hinge back to its initial position when the hinge closes.

[0030] See Figure 1-3 The hinge also includes a decorative cover 6 that covers the cavity 11 of the hinge cup 1. The decorative cover 6 is used to partially cover the return torsion spring 3 and the slider 4, which not only effectively prevents the influence of external factors such as dust and moisture on the components and improves their durability, but also improves the overall aesthetics of the product.

[0031] In this case, at least a portion of the bottom wall of the decorative cover 6 is in contact with at least a portion of the top wall of the slider 4, thereby restricting the movement of the slider 4 along the height direction and preventing phenomena such as the slider 4 lifting up during sliding, thus greatly improving the sliding stability of the slider 4.

[0032] Of course, it should be noted that in other embodiments, limiting screws or similar devices can be inserted into the hinge cup 1 to restrict the up-and-down movement of the slider 4, but this restriction is not applied here.

[0033] Furthermore, at least some of the side walls of the hinge cup 1 receiving cavity 11 are in contact with at least some of the side walls of the slider 4, thereby restricting the slider 4 from moving in the horizontal direction, thus preventing the slider 4 from deviating during sliding and greatly improving the smoothness of sliding of the slider 4.

[0034] Thus, under the combined action of the decorative cover 6 and the hinge cup 1 receiving cavity 11, the slider 4 can slide smoothly and stably within the hinge cup 1 receiving cavity 11, thereby smoothly driving the buffer 5 to perform its action to produce a damping buffering effect.

[0035] The buffer 5 includes a cylinder 51 and a piston rod 52. In this embodiment, the cylinder 51 is a fixed end, and the piston rod 52 is a telescopic end that abuts against the second protrusion 42 of the slider 4.

[0036] Therefore, when the hinge cup 1 is closed to a certain angle, and the hinge cup 1 is continued to be closed, the hinge arm 2 can drive the slider 4 to slide and compress the piston rod 52 through the slider 4 to achieve damping buffer.

[0037] Of course, in other embodiments, the buffer 5 can also be installed in reverse. In this case, the cylinder 51 is the telescopic end and abuts against the second protrusion 42 of the slider 4, while the piston rod 52 is the fixed end. When the slider 4 drives the cylinder 51 to compress and move relative to the piston rod 52, it can also achieve damping and buffering. Therefore, it is not restricted here.

[0038] Additionally, it includes a mounting base 7 that covers the hinge cup 1 and is located on the outer side of the receiving cavity 11. The mounting base 7 has a mounting groove for mounting the buffer 5. Thus, the mounting base 7 not only effectively prevents external factors such as dust and moisture from affecting the buffer 5 and improves its durability, but also shields the buffer 5, thereby improving the overall aesthetics of the product.

[0039] In summary, the American-style buffer hinge provided by this utility model, by setting the reset torsion spring 3 inside the accommodating cavity 11 of the hinge cup 1, only one reset torsion spring 3 needs to be set, thus occupying a small space; in addition, by setting the buffer 5 outside the accommodating cavity 11 of the hinge cup 1, the external space of the hinge cup 1 is fully utilized, and maintenance and replacement are convenient.

[0040] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0041] It should be understood that the terms "top", "bottom", "inner", "outer", 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 module 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.

[0042] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0043] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. An American-style buffer hinge, characterized in that, The device includes a hinge cup and a hinge arm. The hinge cup has a receiving cavity inside. The hinge arm has a transmission arm portion at one end near the hinge cup. The transmission arm portion is hinged to the receiving cavity via a first pin. It also includes a reset torsion spring and a buffer device, wherein the reset torsion spring is disposed in the accommodating cavity and is used to provide hinge closing force; The buffer device includes a slider and a buffer, the buffer being disposed outside the receiving cavity; the slider is slidably disposed inside the receiving cavity and is respectively connected to the transmission arm and the buffer; When the hinge cup is closed to a certain angle, the transmission arm drives the buffer to move through the slider, and the buffer provides a buffering effect on the hinge cup to achieve closing buffering.

2. The American-style buffer hinge according to claim 1, characterized in that, The transmission arm is provided with a first protrusion, and the slider is provided with a locking hole; when the hinge cup is driven to close to a certain angle, the first protrusion abuts against the locking hole to achieve transmission connection.

3. The American-style buffer hinge according to claim 1, characterized in that, The slider is also provided with a second protrusion that extends out of the accommodating cavity. The second protrusion abuts against the telescopic end of the buffer to achieve a transmission connection.

4. The American-style buffer hinge according to any one of claims 1-3, characterized in that, The reset torsion spring is a double torsion spring structure, and a second pin is inserted into the accommodating cavity of the hinge cup. The double torsion spring structure is sleeved on the second pin.

5. The American-style buffer hinge according to claim 4, characterized in that, The double torsion spring structure includes a first spring body, a second spring body, and connecting arms connecting the first spring body and the second spring body respectively. The first spring body is provided with a first support foot, and the second spring body is provided with a second support foot, wherein: Both the first spring body and the second spring body are sleeved on the second pin shaft, the connecting arm abuts against the hinge cup receiving cavity, and both the first support foot and the second support foot abut against the transmission arm.

6. The American-style buffer hinge according to claim 4, characterized in that, It also includes a decorative cover disposed within the hinge cup receiving cavity, the decorative cover being used to conceal the reset torsion spring and the slider portion.

7. The American-style buffer hinge according to claim 6, characterized in that, At least a portion of the bottom wall of the decorative cover abuts against at least a portion of the top wall of the slider to restrict the slider from moving along the height direction.

8. The American-style buffer hinge according to any one of claims 1-3, characterized in that, At least a portion of the two side walls of the hinge cup cavity are abutted against at least a portion of the two side walls of the slider to restrict the slider from moving in the horizontal direction.

9. The American-style buffer hinge according to any one of claims 1-3, characterized in that, The buffer includes a cylinder and a piston rod, one of which is a fixed end and the other is a telescopic end that is connected to the slider in a transmission manner.

10. The American-style buffer hinge according to claim 9, characterized in that, It also includes a mounting base that covers the hinge cup and is located outside the receiving cavity, the mounting base having a mounting slot for mounting the buffer.

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