Hinge with adjustable buffering angle

Abstract

The utility model discloses a hinge with an adjustable buffer angle, which comprises a hinge cup and a hinge arm, and the hinge cup and the hinge arm are hinged through a rocker arm component. In addition, the hinge further comprises a buffer, a driving support and a shifting block, the buffer is arranged at the hinge cup, the driving support is rotationally arranged on the hinge cup and is in transmission fit with the buffer, the shifting block is arranged on the hinge cup in a sliding mode and is provided with a first position and a second position, and a first protruding part matched with the shifting block is arranged on the driving support. When the shifting block is shifted to a second position and the hinge cup is driven to be opened to a certain angle, the first lug boss is propped against the shifting block to limit the buffer from resetting; when the shifting block is shifted to the first position, the shifting block is separated from the first protruding part so that the buffer can be reset. Therefore, the size of the buffer stroke of the buffer can be adjusted by shifting the shifting block, then the size of the buffer angle of the hinge is adjusted, a user can select a proper buffer angle according to different use scenes and requirements, the user requirements are met, and the use experience of the user is improved.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically to a hinge with adjustable buffer angle. 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] In modern daily life, hardware hinges are widely used in the connection and opening / closing mechanisms of various containers, furniture, and electronic devices. To improve the comfort of using hinges and extend their service life, soft-close hinges have emerged. They mainly achieve smooth buffering during the hinge closing process by setting up a buffer device, preventing large impacts and noise caused by rapid closing.

[0004] Currently, most buffer hinges on the market do not allow for adjustment of their buffer angle, preventing users from selecting the appropriate buffer angle according to different usage scenarios and needs, thus reducing the user experience. Utility Model Content

[0005] In order to overcome the defects of the prior art, the present invention provides a buffer angle adjustable hinge, which can solve the problem mentioned in the background art of the inability to adjust the buffer angle of the buffer.

[0006] The technical solution adopted by this utility model to solve its problem is:

[0007] A buffer angle adjustable hinge, comprising:

[0008] A hinge cup and a hinge arm, wherein the hinge cup and the hinge arm are hinged together by a rocker arm assembly;

[0009] A buffer is provided at the hinge cup;

[0010] A drive bracket is rotatably mounted on the hinge cup and engages with the buffer in a transmission manner.

[0011] A lever, which is slidably disposed on the hinge cup and has a first position and a second position;

[0012] The drive bracket is provided with a first protrusion that cooperates with the lever. When the lever is moved to the second position and the hinge cup is opened to a certain angle, the first protrusion abuts against the lever to restrict the buffer from resetting. When the lever is moved to the first position, the lever separates from the first protrusion so that the buffer can be reset.

[0013] Furthermore, when the lever is moved to the second position and the hinge cup is closed, the first protrusion can abut against the lever and pass over the lever so that the hinge cup continues to close.

[0014] Furthermore, the lever is made of plastic.

[0015] Furthermore, it also includes a mounting base mounted outside the hinge, with the buffer mounted inside the mounting base; the toggle is slidably disposed on the mounting base and partially passes through the hinge cup.

[0016] Furthermore, the lever includes a main body and a lever portion disposed on the main body, wherein:

[0017] The mounting base has a mounting groove, and the main body is slidably mounted on the mounting groove and used to abut and cooperate with the first protrusion.

[0018] The hinge cup has a limiting hole, and the actuating part passes through the limiting hole for the user to actuate; the actuating part can slide within the limiting hole, and when the actuating part is actuated to one side of the limiting hole, the actuating block is in the first position; when the actuating part is actuated to the other side of the limiting hole, the actuating block is in the second position.

[0019] Further, the buffer includes a cylinder and a piston rod disposed on the cylinder, wherein:

[0020] The drive bracket is rotatably disposed inside the hinge cup and has a second protrusion. The second protrusion abuts against the piston rod through a transmission plate to achieve a transmission connection; or, the second protrusion abuts against the cylinder to achieve a transmission connection.

[0021] Furthermore, the drive bracket includes at least a first support rod rotatably connected to one side of the hinge cup, wherein the first protrusion and the second protrusion are respectively integrally formed on one end of the first support rod as a first protrusion and a second protrusion.

[0022] Furthermore, the drive bracket also includes a support block connected to the other end of the first support rod. When the hinge cup is closed until the support block abuts against the rocker arm assembly or the hinge arm, the rocker arm assembly or the hinge arm can drive the drive bracket to rotate relative to the hinge cup under the action of the hinge closing force, and simultaneously compress the buffer so that the hinge cup produces a buffering effect.

[0023] Furthermore, the drive bracket also includes a second support rod rotatably connected to the other side inside the hinge cup and disposed opposite to the first support rod, the support block being located between the first support rod and the second support rod, and the other end of the support block being connected to the second support rod.

[0024] Further, the rocker arm assembly includes an outer rocker arm and an inner rocker arm, one end of the outer rocker arm is hinged to the hinge cup, and the other end is hinged to the hinge arm; one end of the inner rocker arm is hinged to the hinge cup, and the other end is hinged to the hinge arm, wherein;

[0025] A torsion spring is also provided at the hinge joint between the outer rocker arm and the hinge arm. A first torsion arm and a second torsion arm are respectively provided at both ends of the torsion spring. The first torsion arm abuts against the inner side of the hinge arm, and the second torsion arm abuts against the inner side of the inner rocker arm to provide hinge closing force.

[0026] In summary, this utility model provides an adjustable buffer angle hinge. When the user moves the lever to the second position, the buffer's reset is restricted, thus reducing the buffer's buffer stroke and consequently the hinge's buffer angle. For kitchen cabinet doors, a smaller buffer angle allows for quick closing, improving work efficiency. When the user moves the lever back to the first position, the buffer fully resets, increasing its buffer stroke and thus the hinge's buffer angle. For bedroom cabinet doors, a larger buffer angle allows for slow closing, reducing noise and impact, and enhancing the user experience. Therefore, users can select the appropriate buffer angle according to different usage scenarios and needs, thereby meeting their requirements and improving their user experience. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the adjustable buffer angle hinge of this utility model;

[0028] Figure 2 This is an exploded schematic diagram of the adjustable buffer angle hinge of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the adjustable hinge with buffer angle of this utility model when the lever is in the first position;

[0030] Figure 4 This is a schematic diagram of the structure of the adjustable buffer angle hinge of this utility model when the lever is in the second position;

[0031] Figure 5 This is a partial structural diagram of the adjustable-angle buffer hinge of this utility model when it begins to buffer.

[0032] Figure 6 This is a partial structural diagram of the adjustable hinge with buffer angle of this utility model when it is fully closed;

[0033] Figure 7 This is a partial structural diagram of the adjustable buffer angle hinge of this utility model when the lever is in the second position and the buffer is limited and fixed.

[0034] The meanings of the reference numerals in the attached figures are as follows:

[0035] 1. Hinge cup; 101. Limiting hole; 102. Groove; 103. Limiting protrusion; 2. Hinge arm; 3. Outer rocker arm; 4. Inner rocker arm; 5. Drive bracket; 501. First support rod; 5011. First protrusion; 5012. Second protrusion; 502. Support block; 5021. Wear-resistant sleeve; 503. Second support rod; 5031. Third protrusion; 6. Buffer; 601. Cylinder body; 602. Piston rod; 7. Transmission plate; 8. Pulley; 801. Main body; 802. Pulley part; 9. Mounting seat; 901. Mounting groove; 10. Torsion spring; 1001. First torsion arm; 1002. Second torsion arm; 11. Double needle; 12. First pin; 13. Second pin. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] See Figure 1-7 This utility model provides a hinge with an adjustable buffer angle, including a hinge cup 1 fixed to a cabinet door and a hinge arm 2 fixed to the inside of the cabinet. A rocker arm assembly is provided between the hinge cup 1 and the hinge arm 2 to achieve hinged opening and closing. It also includes a buffer assembly, which includes a buffer 6 disposed at the hinge cup 1 and a drive bracket 5 rotatably disposed inside the hinge cup 1 and drivingly cooperating with the buffer 6. When the hinge cup 1 is closed, the drive bracket 5 is simultaneously closed until it abuts against the rocker arm assembly or the hinge arm 2. At this point, under the action of the hinge closing force, the rocker arm assembly or the hinge arm 2 can drive the drive bracket 5 to rotate relative to the hinge cup 1, thereby compressing the buffer 6 to provide a buffering effect on the hinge cup 1, thus achieving buffered closure of the hinge.

[0040] It also includes a lever 8 that slides on the hinge cup 1. The lever 8 has a first position and a second position on the hinge cup. The drive bracket 5 is provided with a first protrusion that cooperates with the lever 8. When the lever 8 is moved to the second position and the hinge cup 1 is opened to a certain angle, the first protrusion abuts against the lever 8 to limit the reset of the buffer 6. When the lever 8 is moved to the first position, the lever 8 separates from the first protrusion so that the buffer 6 can be reset.

[0041] Based on the above structure, when the hinge is in a fully closed state and the lever 8 is moved to the second position, when the hinge is reopened, the buffer 6 gradually resets and drives the drive bracket 5 to rotate and reset until the hinge is opened to a certain angle. At this time, the first protrusion on the drive bracket 5 abuts against the lever 8. At this time, the reset force of the buffer 6 cannot drive the first protrusion past the lever 8. The reset of the buffer 6 is restricted. Then, the hinge continues to open, and the drive bracket 5 no longer rotates relative to the hinge cup 1 until the hinge is fully opened and reset.

[0042] At this point, because the reset of buffer 6 is restricted, the buffer stroke of buffer 6 is reduced, which means the buffer angle of the hinge is reduced. When the hinge is closed again, it needs to close close to the hinge arm 2 before buffering occurs. Therefore, by moving the toggle block 8 to the second position, the buffer angle of the hinge can be reduced. When applied to kitchen cabinet doors, the smaller buffer angle allows for quick closing of the cabinet door, improving work efficiency.

[0043] Conversely, when the toggle block 8 is moved to the first position, since the toggle block 8 is separated from the first protrusion, the buffer 6 can continue to reset and drive the drive bracket 5 to rotate relative to the hinge cup 1 to its initial state until the buffer 6 is fully reset. At this point, the buffer stroke of the buffer 6 reaches its maximum, which increases the buffer angle of the hinge. When the hinge is driven to close again, the hinge closes only a small angle before buffering occurs until it is fully closed. Therefore, by moving the toggle block 8 to the first position, the buffer angle of the hinge can be increased. When applied to bedroom cabinet doors, a larger buffer angle allows the cabinet door to close slowly, reducing noise and impact, and improving the user experience. Thus, users can choose the appropriate buffer angle according to different usage scenarios and needs, thereby meeting their requirements and improving the user experience.

[0044] It should be noted that when the hinge is fully open and the lever 8 is moved to the second position, and then the hinge is closed to a certain angle, the first protrusion on the drive bracket 5 can abut against the lever 8 (e.g., Figure 4 As shown in the figure, under the action of the hinge closing force, the first protrusion can pass over the lever 8 so that the hinge cup continues to close.

[0045] Preferably, the lever 8 is a plastic part that can deform under external force, so that the first protrusion can easily pass over the lever 8 during the closing process without jamming or stopping.

[0046] See also Figure 1-4 It also includes a mounting base 9 installed on the outer side of the hinge, the buffer 6 is installed in the mounting base 9, and the lever 8 is slidably disposed on the mounting base 9 and partially passes through the hinge cup 1. Specifically, the lever 8 includes a main body 801 and a lever part 802 disposed on the top of the main body 801. The top of the mounting base 9 has a mounting groove 901, the main body 801 is slidably disposed on the mounting groove 901 and is used to abut against the first protrusion; the hinge cup 1 has a through limiting hole 101, and the lever part 802 passes through the limiting hole 101 for the user to lever; wherein, the lever part 802 can slide in the limiting hole 101 and when the lever part 802 is levered to one side of the limiting hole 101, the lever 8 is in a first position (e.g., Figure 3 (as shown); when the actuating part 802 is moved to the other side of the limiting hole 101, the actuating block 8 is in the second position (as shown). Figure 4 (As shown).

[0047] The buffer 6 includes a cylinder 601 and a retractable piston rod 602 mounted on the cylinder 601. The drive bracket 5 is rotatably mounted inside the hinge cup 1 and has a second protrusion. The second protrusion abuts against the piston rod 602 via a transmission plate 7 to achieve a transmission connection. One side of the transmission plate 7 abuts against the second protrusion, and the other side abuts against the piston rod 602. When the drive bracket 5 rotates relative to the hinge cup 1, the piston rod 602 can be compressed by the transmission plate 7 to achieve buffering. Conversely, when the hinge is opened, the piston rod 602 returns to its original position and extends, driving the drive bracket 5 to rotate and return to its original position via the transmission plate 7.

[0048] Of course, in other embodiments, the buffer 6 can also be reversed, that is, the cylinder 601 of the buffer 6 is aligned with the second protrusion. Since the contact area on the cylinder 601 for abutting the second protrusion is large, there is no need to set an additional transmission plate 7. The second protrusion can be directly abutted against the cylinder 601 to achieve transmission connection.

[0049] See Figure 1-2The hinge cup 1 has a groove 102 inside, which is configured to accommodate at least part of the rocker arm assembly when the hinge is fully closed; the drive bracket 5 includes a first support rod 501 rotatably connected to an inner sidewall of the groove 102, and a first protrusion 5011 and a second protrusion 5012 integrally formed on the lower end of the first support rod 501, respectively. The first protrusion 5011 is used to abut against the main body 801 of the lever 8, and the second protrusion 5012 is used to drive the buffer 6.

[0050] The drive bracket 5 also includes a support block 502 connected to the upper end of the first support rod 501. The support block 502 is provided with a wear-resistant sleeve 5021. When the hinge cup 1 is closed until the wear-resistant sleeve 5021 on the support block 502 abuts against the hinge arm 2, the wear-resistant sleeve 5021 abuts against the upper end face of the hinge arm 2 at a tangential or approximately tangential angle (e.g., ...). Figure 5 (As shown), then under the action of the hinge closing force, the hinge arm 2 can drive the drive bracket 5 to rotate relative to the hinge cup 1 and synchronously compress the buffer 6 so that the hinge cup 1 produces a buffering effect. At the same time, the wear-resistant sleeve 5021 slides on the upper end surface of the hinge arm 2 until the hinge is fully closed. The support block 502 abuts against the upper end of the hinge arm 2 and is located outside the groove 102 (as shown). Figure 6 (As shown).

[0051] Of course, in other embodiments, the wear-resistant sleeve 5021 on the support block 502 can also rotate and compress the buffer 6 by abutting against the rocker arm assembly, which can achieve the same technical effect, and is not limited here.

[0052] See also Figure 1-2 The drive bracket 5 also includes a second support rod 503 rotatably connected to the other inner wall of the groove 102 and disposed opposite to the first support rod 501. The support block 502 is located between the first support rod 501 and the second support rod 503, and the other end of the support block 502 is connected to the upper end of the second support rod 503.

[0053] The lower end of the second support rod 503 is integrally formed with a third protrusion 5031, and the side wall of the groove 102 is also provided with a limiting protrusion 103. When the hinge is opened, the piston rod 602 of the buffer 6 is reset and drives the drive bracket 5 to rotate relative to the hinge cup 1 until the third protrusion 5031 abuts against the limiting protrusion 103. At this time, the drive bracket 5 is limited and fixed, so it can be ensured that the drive bracket 5 is in the same position relative to the hinge cup 1 after each return. This ensures that the support block 502 on the drive bracket 5 can abut against the hinge arm 2 when the hinge is closed, thereby ensuring the reliability of the buffer closure of the hinge cup 1.

[0054] Additionally, the rocker arm assembly includes an outer rocker arm 3 and an inner rocker arm 4. One end of the outer rocker arm 3 is hinged to the hinge cup 1, and the other end is hinged to the hinge arm 2. One end of the inner rocker arm 4 is hinged to the hinge cup 1, and the other end is hinged to the hinge arm 2. Specifically, one end of the outer rocker arm 3 and one end of the inner rocker arm 4 are hinged to the hinge cup 1 via a double pin 11. The other end of the outer rocker arm 3 is hinged to the hinge arm 2 via a first pin 12, and the other end of the inner rocker arm 4 is hinged to the hinge arm 2 via a second pin 13.

[0055] The outer rocker arm 3 and the hinge arm 2 are provided with a torsion spring 10. The torsion spring 10 is sleeved on the first pin 12 and the two ends of the torsion spring 10 are respectively provided with a first torsion arm 1001 and a second torsion arm 1002. The first torsion arm 1001 abuts against the inner side of the hinge arm 2, and the second torsion arm 1002 abuts against the inner side of the inner rocker arm 4 to provide hinge closing force.

[0056] In summary, the adjustable buffer angle hinge provided by this utility model allows for several improvements. When the user moves the lever 8 to the second position, the buffer 6's reset is restricted, thus reducing the buffer stroke of the buffer 6 and consequently the hinge's buffer angle. For kitchen cabinet doors, a smaller buffer angle enables quick closing, improving work efficiency. When the user moves the lever 8 back to the first position, the buffer 6 fully resets, increasing its buffer stroke and thus the hinge's buffer angle. For bedroom cabinet doors, a larger buffer angle allows for slow closing, reducing noise and impact, and enhancing the user experience. Therefore, users can select the appropriate buffer angle according to different usage scenarios and needs, thereby meeting their requirements and improving their user experience.

[0057] 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.

[0058] 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.

[0059] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0060] 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. A buffer angle adjustable hinge, characterized in that, include: A hinge cup and a hinge arm, wherein the hinge cup and the hinge arm are hinged together by a rocker arm assembly; A buffer is provided at the hinge cup; A drive bracket is rotatably mounted on the hinge cup and engages with the buffer in a transmission manner. A lever, which is slidably disposed on the hinge cup and has a first position and a second position; The drive bracket is provided with a first protrusion that cooperates with the lever. When the lever is moved to the second position and the hinge cup is opened to a certain angle, the first protrusion abuts against the lever to restrict the buffer from resetting. When the lever is moved to the first position, the lever separates from the first protrusion so that the buffer can be reset.

2. The adjustable hinge with buffer angle according to claim 1, characterized in that, When the lever is moved to the second position and the hinge cup is closed, the first protrusion can abut against the lever and pass over the lever so that the hinge cup continues to close.

3. The adjustable hinge with buffer angle according to claim 2, characterized in that, The lever is made of plastic.

4. The adjustable hinge with buffer angle according to any one of claims 1-3, characterized in that, It also includes a mounting base mounted outside the hinge, with the buffer mounted inside the mounting base; the toggle is slidably disposed on the mounting base and partially passes through the hinge cup.

5. The adjustable-angle buffer hinge according to claim 4, characterized in that, The lever includes a main body and a lever portion disposed on the main body, wherein: The mounting base has a mounting groove, and the main body is slidably mounted on the mounting groove and used to abut and cooperate with the first protrusion. The hinge cup has a limiting hole, and the actuating part passes through the limiting hole for the user to actuate; the actuating part can slide within the limiting hole, and when the actuating part is actuated to one side of the limiting hole, the actuating block is in the first position; when the actuating part is actuated to the other side of the limiting hole, the actuating block is in the second position.

6. The adjustable buffer angle hinge according to claim 4, characterized in that, The buffer includes a cylinder and a piston rod disposed on the cylinder, wherein: The drive bracket is rotatably disposed inside the hinge cup and has a second protrusion. The second protrusion abuts against the piston rod through a transmission plate to achieve a transmission connection; or, the second protrusion abuts against the cylinder to achieve a transmission connection.

7. The adjustable-angle buffer hinge according to claim 6, characterized in that, The drive bracket includes at least a first support rod rotatably connected to one side of the hinge cup, and the first protrusion and the second protrusion are respectively integrally formed on one end of the first support rod as a first protrusion and a second protrusion.

8. The adjustable hinge with buffer angle according to claim 7, characterized in that, The drive bracket also includes a support block connected to the other end of the first support rod. When the hinge cup is closed until the support block abuts against the rocker arm assembly or the hinge arm, the rocker arm assembly or the hinge arm can drive the drive bracket to rotate relative to the hinge cup under the action of the hinge closing force, and simultaneously compress the buffer so that the hinge cup produces a buffering effect.

9. The adjustable-angle buffer hinge according to claim 8, characterized in that, The drive bracket further includes a second support rod rotatably connected to the other side inside the hinge cup and disposed opposite to the first support rod. The support block is located between the first support rod and the second support rod, and the other end of the support block is connected to the second support rod.

10. The adjustable-angle buffer hinge according to claim 8, characterized in that, The rocker arm assembly includes an outer rocker arm and an inner rocker arm. One end of the outer rocker arm is hinged to the hinge cup, and the other end is hinged to the hinge arm. One end of the inner rocker arm is hinged to the hinge cup, and the other end is hinged to the hinge arm. A torsion spring is also provided at the hinge joint between the outer rocker arm and the hinge arm. A first torsion arm and a second torsion arm are respectively provided at both ends of the torsion spring. The first torsion arm abuts against the inner side of the hinge arm, and the second torsion arm abuts against the inner side of the inner rocker arm to provide hinge closing force.

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