A hinge structure with double buffering function

Abstract

The utility model discloses a kind of hinge structures with double buffering function, including hinge cup, hinge arm, first buffer assembly being arranged on hinge cup and second buffer assembly being arranged in hinge arm, rocker assembly is equipped between the hinge cup and hinge arm, the rocker assembly includes outer rocker arm and inner rocker arm;The first buffer assembly includes first buffer and first driving block, and the first driving block is drivingly connected with outer rocker arm;The second buffer assembly includes second buffer and second driving block, and the second driving block is drivingly connected with inner rocker arm;When driving hinge cup to open or close, first buffer can be driven to act by first driving block driven by outer rocker arm to realize opening buffering, and second buffer can be driven to act by second driving block driven by inner rocker arm to realize closing buffering. Thus, the hinge structure has double buffering function, which can perfectly combine safety, protection, comfort, quietness and durability, and is more practical.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically to a hinge structure with dual buffer function. 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] A hinge is a mechanical device used to connect two fixed parts and allow relative rotation between them. 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 cushion the cabinet door when it is closed, preventing the cabinet door from colliding with the cabinet body with excessive force and damaging the cabinet.

[0004] However, existing soft-close hinges do not have a soft-close function. When the cabinet door opens too fast, it can easily pinch children, pets, etc., and can also damage the cabinet door or hinge structure due to violent impact with the cabinet or other obstacles, resulting in poor product durability. In addition, when the cabinet door violently impacts other objects, it will also generate a lot of noise, reducing the user experience. Utility Model Content

[0005] In order to overcome the defects mentioned in the prior art, the present invention provides a hinge structure with dual buffer function, which can solve the problems of insufficient safety, poor durability and poor noise reduction mentioned in the background art.

[0006] The technical solution adopted by this utility model to solve its problem is: A hinge structure with dual buffer function includes a hinge cup and a hinge arm. A rocker arm assembly is provided between the hinge cup and the hinge arm to realize hinged opening and closing. The rocker arm assembly includes an outer rocker arm and an inner rocker arm. One end of the outer rocker arm and one end of the inner rocker arm are hinged to the hinge cup, and the other ends of the outer rocker arm and the other end of the inner rocker arm are hinged to the hinge arm. The structure also includes: A first buffer assembly is disposed on the hinge cup and includes a first buffer and a first drive block that drives and engages with the first buffer. The first drive block is driven and connected to one end of the outer rocker arm near the hinge cup. The second buffer assembly is disposed inside the hinge arm and includes a second buffer and a second drive block that drives and cooperates with the second buffer. The second drive block is driven to one end of the inner rocker arm near the hinge arm. Specifically, when the hinge cup is opened or closed, the outer rocker arm and the inner rocker arm can be driven to swing back and forth simultaneously; when the hinge cup is opened to a certain angle, the outer rocker arm drives the first drive block to drive the first buffer to move, and the first buffer provides a buffering effect on the hinge cup to achieve opening buffering; when the hinge cup is closed to a certain angle, the inner rocker arm drives the second drive block to drive the second buffer to move, and the second buffer provides a buffering effect on the hinge cup to achieve closing buffering.

[0007] As an alternative implementation, the hinge cup has a groove configured to accommodate at least a portion of the rocker arm assembly when the hinge cup is closed; the first buffer assembly is located outside the groove.

[0008] As an optional implementation, the first drive block is hinged to the hinge cup and located on the outer side of the groove; the side of the outer rocker arm near the hinge cup is connected to the first drive block in a transmission manner.

[0009] As an optional implementation, it also includes a drive shaft that passes through the first drive block and is linked with the first drive block. A clearance hole is provided on one side of the hinge cup, and a locking hole is provided on the side of the outer rocker arm near one end of the hinge cup. The drive shaft passes through the clearance hole and is locked in the locking hole to realize the transmission connection with the outer rocker arm. When the hinge cup is opened, the outer rocker arm can be driven to swing synchronously. The outer rocker arm is engaged with the locking hole through the drive shaft to drive the first drive block to rotate synchronously.

[0010] As an optional implementation, the first buffer is a first hydraulic cylinder, including a first cylinder body and a first piston rod movably disposed on the first cylinder body. The first buffer assembly also includes a transmission plate, one end of which is connected to the first drive block, and the other end of which is connected to the first cylinder body or the first piston rod. When the hinge cup is opened to a certain angle, the first drive block drives the first cylinder or the first piston rod to extend or retract via the transmission plate to buffer the hinge cup.

[0011] As an optional implementation, the second drive block is a transmission block, which is hinged inside the hinge arm; one end of the inner rocker arm near the hinge arm is hinged to one end of the transmission block to achieve a transmission connection; When the hinge cup is closed, the inner rocker arm can be swung synchronously. After the hinge cup is closed to a certain angle, the inner rocker arm drives the transmission block to rotate.

[0012] As an optional implementation, the second buffer is a second hydraulic cylinder, and includes a second cylinder body and a second piston rod movably disposed on the second cylinder body. The other end of the transmission block is hinged to the second piston rod to achieve a transmission connection. When the hinge cup is closed to a certain angle, the transmission block drives the second piston rod to extend and retract to buffer the hinge cup.

[0013] As an optional implementation, the second drive block is a sliding seat, which is slidably disposed inside the hinge arm; the sliding seat is provided with a first protrusion, and the inner rocker arm is provided with a second protrusion at one end near the hinge arm, the first protrusion and the second protrusion abut against each other to achieve a transmission connection; When the hinge cup is closed, the inner rocker arm can be swung simultaneously. After the hinge cup is closed to a certain angle, the inner rocker arm drives the sliding seat to slide through the abutment of the second protrusion and the first protrusion.

[0014] As an optional implementation, the second buffer is a third hydraulic cylinder, and includes a third cylinder body and a third piston rod movably disposed on the third cylinder body; The sliding seat has an installation groove, the third oil cylinder is disposed in the installation groove, the third piston rod abuts against the inner wall of the installation groove to achieve a transmission connection, and the third cylinder body protrudes from the installation groove and abuts against and is limited at the hinge of the outer rocker arm and the hinge arm. When the hinge cup is closed to a certain angle, the sliding seat compresses the third piston rod to buffer the hinge cup.

[0015] As an optional implementation, it also includes a torsion spring disposed at the hinge point between the outer rocker arm and the hinge arm, with the third cylinder abutting and limiting the torsion spring.

[0016] In summary, the hinge structure with dual buffer function provided by this utility model has the following beneficial effects: (1) The hinge structure of this utility model, by setting a first buffer component at the hinge cup and a second buffer component in the hinge arm, enables the hinge structure to have both opening buffer and closing buffer functions, thereby slowing down the opening and closing speed of the cabinet door, avoiding cabinet door pinching or collision accidents, and also preventing the cabinet door from violently hitting other objects, which would damage the cabinet door and hinge structure and extend the service life of the product; in addition, by slowing down the opening and closing speed of the cabinet door, it is also possible to avoid the cabinet door violently hitting and generating huge noise, thereby creating a quiet environment and improving the user experience.

[0017] (2) The hinge structure of this utility model effectively utilizes the external space and avoids the problem of limited internal space by setting the first buffer component outside the hinge cup groove. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the hinge structure in the first embodiment of the present invention when the hinge cup is fully open; Figure 2 This is an exploded view of the hinge structure of the first embodiment of this utility model; Figure 3 This is a schematic diagram of the mounting base in the hinge structure of the first embodiment of this utility model; Figure 4 for Figure 1 A structural diagram showing the installation base hidden; Figure 5 for Figure 4 A schematic diagram of the structure after concealing the first buffer and the transmission plate; Figure 6 This is a schematic diagram of the hinge structure of the first embodiment of the present invention when the hinge cup is fully closed (the mounting base has been hidden). Figure 7 for Figure 6 A schematic diagram of the structure after concealing the first buffer and the transmission plate; Figure 8 This is a schematic diagram of the hinge structure in the first embodiment of the present invention when the hinge cup is opened to the start of buffering (the mounting base has been hidden). Figure 9 for Figure 8 A schematic diagram of the structure after concealing the first buffer and the transmission plate; Figure 10 This is a schematic diagram of the hinge structure from another perspective of the first embodiment of this utility model; Figure 11 for Figure 10 A schematic diagram of the structure after the hinge arm is hidden; Figure 12 This is a schematic diagram of the hinge structure in the first embodiment of the present invention when the hinge cup is closed to the start of buffering (the hinge arm has been hidden). Figure 13 This is a schematic diagram of the hinge structure of the first embodiment of the present invention when the hinge cup is fully closed (the hinge arm has been hidden). Figure 14 This is a schematic diagram of the hinge structure of the second embodiment of the present invention when the hinge cup is fully open (the hinge arm has been hidden). Figure 15 for Figure 14 A schematic diagram of the structure after hiding the second driving block; Figure 16This is a schematic diagram of the hinge cup closing to the start of buffering in the chain structure of the second embodiment of the present invention (the hinge arm has been hidden). Figure 17 This is a schematic diagram of the hinge structure in the second embodiment of the present invention when the hinge cup is fully closed (the hinge arm has been hidden).

[0019] The meanings of the reference numerals in the attached figures are as follows: 1. Hinge cup; 101. Groove; 102. Clearance hole; 103. First hinge hole; 104. Second hinge hole; 105. Third hinge hole; 106. Mounting hole; 2. Hinge arm; 3. Outer rocker arm; 301. Locking hole; 302. Fourth hinge hole; 4. Inner rocker arm; 401. Fifth hinge hole; 402. Second protrusion; 5. First buffer assembly; 501. First drive block; 5011. Protrusion; 5012. Drive shaft; 5013. Sixth hinge hole; 502. Transmission plate; 5021. Protrusion; 5022. Bending part; 503. First hydraulic cylinder; 5031. First cylinder body; 5 032. First piston rod; 6. Mounting seat; 601. First mounting groove; 602. Second mounting groove; 603. Limiting hole; 604. Hook; 7. First hinge shaft; 8. Double needle; 801. First needle; 802. Second needle; 9. Transmission block; 10. Second cylinder; 1001. Second cylinder body; 1002. Second piston rod; 11. Second hinge shaft; 12. Third hinge shaft; 13. Fourth hinge shaft; 14. Fifth hinge shaft; 15. Sliding seat; 1501. First protrusion; 16. Third cylinder; 1601. Third cylinder body; 1602. Third piston rod; 17. Torsion spring. 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] Example 1 See Figure 1-13 This utility model provides a hinge structure with double buffer function, including a hinge cup 1 fixed on the cabinet door and a hinge arm 2 fixed in the cabinet body. A rocker arm assembly is provided between the hinge cup 1 and the hinge arm 2 to realize hinged opening and closing. The rocker arm assembly includes an outer rocker arm 3 and an inner rocker arm 4. One end of the outer rocker arm 3 and one end of the inner rocker arm 4 are both hinged to the hinge cup 1, and the other end of the outer rocker arm 3 and the other end of the inner rocker arm 4 are both hinged to the hinge arm 2. Thus, when the hinge cup 1 is opened or closed, the outer rocker arm 3 and the inner rocker arm 4 can be driven to swing back and forth simultaneously. In addition, it also includes a first buffer assembly 5 disposed on the hinge cup 1 and a second buffer assembly disposed in the hinge arm 2. The first buffer assembly includes a first buffer and a first drive block 501 that is driven to cooperate with the first buffer. The first drive block 501 is driven to be connected to one end of the outer rocker arm 3 near the hinge cup 1. The second buffer assembly includes a second buffer and a second drive block that is driven to cooperate with the second buffer. The second drive block is driven to be connected to one end of the inner rocker arm 4 near the hinge arm 2.

[0024] When the hinge cup 1 is opened or closed, the outer rocker arm 3 and the inner rocker arm 4 can swing back and forth simultaneously. The outer rocker arm 3 can drive the first drive block 501 to move. When the hinge cup 1 is opened to a certain angle, the outer rocker arm 3 drives the first drive block 501 to drive the first buffer to move. The first buffer provides a buffering effect on the hinge cup 1 to achieve opening buffering. The inner rocker arm 4 can drive the second drive block to move. When the hinge cup 1 is closed to a certain angle, the inner rocker arm 4 drives the second drive block to drive the second buffer to move. The second buffer provides a buffering effect on the hinge cup 1 to achieve closing buffering.

[0025] Therefore, by setting the first buffer component 5 at the hinge cup 1 and the second buffer component inside the hinge arm 2, the hinge structure has both opening and closing buffer functions, which can slow down the opening and closing speed of the cabinet door, avoid cabinet door pinching or collision accidents, and also prevent the cabinet door from violently hitting other objects, thus preventing damage to the cabinet door and hinge structure and extending the service life of the product. In addition, slowing down the opening and closing speed of the cabinet door can also prevent the cabinet door from violently hitting and generating loud noise, thereby creating a quiet environment and improving the user experience.

[0026] For details, please refer to Figure 2 The hinge cup 1 has a groove 101 configured to accommodate at least a portion of the rocker arm assembly when the hinge cup 1 is closed; the first buffer assembly 5 is located outside the groove 101. Preferably, the first drive block 501 is hinged to the hinge cup 1 and located on the outer side of the groove 101; the side of the outer rocker arm 3 near one end of the hinge cup 1 is drively connected to the first drive block 501.

[0027] Therefore, by placing the first buffer component 5 outside the groove 101 of the hinge cup 1, the external space is effectively utilized, avoiding the problem of limited internal space.

[0028] More specifically, it also includes a drive shaft 5012 that passes through and is linked to the first drive block 501. A clearance hole 102 is provided on one side of the hinge cup 1, and a locking hole 301 is provided on the side of the outer rocker arm 3 near one end of the hinge cup 1. The drive shaft 5012 passes through the clearance hole 102 and is locked in the locking hole 301 to achieve a transmission connection with the outer rocker arm 3. Thus, when the hinge cup 1 is opened, the outer rocker arm 3 can be driven to swing synchronously. The outer rocker arm 3 drives the first drive block 501 to rotate synchronously through the locking engagement of the drive shaft 5012 and the locking hole 301.

[0029] In this embodiment, the outer rocker arm 3 has a fourth hinge hole 302 on both sides near the hinge cup 1, the first drive block 501 has a sixth hinge hole 5013, and the two side walls of the groove 101 of the hinge cup 1 have a first hinge hole 103. Thus, by passing the first hinge shaft 7 through the two fourth hinge holes 302, the two first hinge holes 103, and the sixth hinge hole 5013 respectively, the outer rocker arm 3 can be hinged to the hinge cup 1 on both sides.

[0030] See also Figure 2 and Figure 4 The first buffer is a first hydraulic cylinder 503, which includes a first cylinder body 5031 and a first piston rod 5032 movably disposed on the first cylinder body 5031. The first buffer assembly 5 also includes a transmission plate 502, one end of which is used for transmission connection with the first drive block 501, and the other end of which is transmitted connection with the first piston rod 5032. When the hinge cup 1 is opened to a certain angle, the first drive block 501 drives the first piston rod 5032 to extend and retract through the transmission plate 502 to generate a buffering effect on the hinge cup 1.

[0031] In this embodiment, when the first piston rod 5032 is compressed and moved relative to the first cylinder 5031, it can generate a buffering effect; preferably, one end of the transmission plate 502 is provided with a protrusion 5021, and the first drive block 501 is provided with a protrusion 5011. The protrusion 5021 is used to abut against the protrusion 5011 to realize the transmission connection; the other end of the transmission plate 502 is bent with a bending portion 5022, which is used to abut against the first piston rod 5032 to realize the transmission connection.

[0032] Therefore, when the hinge cup 1 is opened to a certain angle, the protrusion 5011 on the first drive block 501 can abut against the protrusion 5021 on the transmission plate 502, and then drive the transmission plate 502 to move. The bent part 5022 of the transmission plate 502 can abut against and compress the first piston rod 5032 to buffer the hinge cup 1 until the hinge cup 1 is fully opened. Conversely, when the hinge cup 1 is closed, the outer rocker arm 3 and the first drive block 501 can be driven to rotate and reset simultaneously. The first drive block 501 disengages from the transmission plate 502, and the first piston rod 5032 extends and resets, driving the transmission plate 502 to reset and move until the first piston rod 5032 is fully reset.

[0033] Of course, it should be noted that in other embodiments, the first cylinder 503 can also be installed in reverse, and the first cylinder body 5031 can be compressed by the transmission plate 502 to produce a buffering effect on the hinge cup 1, which can also achieve the same technical effect, and is not limited here.

[0034] Furthermore, the hinge structure also includes a mounting base 6 disposed on the side of the hinge cup 1 and shielding the first buffer assembly 5. The first hydraulic cylinder 503 and the transmission plate 502 are both disposed within the mounting base 6. One end of the mounting base 6 has two hooks 604 arranged vertically at intervals, and the hinge cup 1 has two corresponding mounting holes 106. By engaging the two hooks 604 into the two mounting holes 106, one end of the mounting base 6 can be fixed in a limited position. The other end of the mounting base 6 has a limiting hole 603, and both sides of the groove 101 of the hinge cup 1 have third hinge holes 105. By using a second pin 802 passing through the limiting hole 603 and the third hinge hole 105 respectively, the other end of the mounting base 6 can be fixed in a limited position, thereby assembling and fixing the mounting base 6 onto the hinge cup 1.

[0035] The mounting base 6 has a first mounting groove 601 that matches the shape of the first cylinder 5031 and a second mounting groove 602 that matches the shape of the transmission plate 502. The first cylinder 5031 is placed in the first mounting groove 601 and the transmission plate 502 is placed in the second mounting groove 602. When the mounting base 6 is assembled and fixed on the hinge cup 1, it can limit and fix the first buffer and the transmission plate 502.

[0036] In addition, the inner rocker arm 4 is bent at one end near the hinge cup 1 to form a fifth hinge hole 401, and the two side walls of the groove 101 of the hinge cup 1 are provided with second hinge holes 104; thus, by using the first pin 801 to pass through the two second hinge holes 104 and the fifth hinge hole 401 respectively, one end of the inner rocker arm 4 can be hinged to the hinge cup 1.

[0037] In this embodiment, the first pin 801 and the second pin 802 are integrally formed to form a double pin 8.

[0038] Therefore, the opening process of the hinge structure in this embodiment is as follows: When hinge cup 1 is in the fully closed state (e.g.) Figure 6-7 As shown), at this time, the protrusion 5011 on the first drive block 501 is located at one end of the clearance hole 102. When the hinge cup 1 is opened, the outer rocker arm 3 can be rotated synchronously. The outer rocker arm 3 synchronously drives the first drive block 501 to rotate counterclockwise until the protrusion 5011 on the first drive block 501 abuts against the protrusion 5021 of the transmission plate 502 (as shown). Figure 8-9 As shown), the hinge cup 1 continues to open, and the first drive block 501 continues to rotate counterclockwise, driving the transmission plate 502 to compress the first piston rod 5032 to achieve buffering, until the hinge cup 1 is fully open (as shown). Figure 4-5 As shown), at this time, the transmission plate 502 compresses the first piston rod 5032 to the bottom, and the protrusion 5011 on the first drive block 501 rotates to the other end of the first clearance hole 102.

[0039] See Figure 10-13 The second driving block is a transmission block 9, which is hinged to the hinge arm 2 via a third hinge shaft 12. The end of the inner rocker arm 4 near the hinge arm 2 is hinged to one end of the transmission block 9 via the second hinge shaft to achieve a transmission connection. Thus, when the hinge cup 1 is closed, the inner rocker arm 4 can be driven to swing synchronously. When the hinge cup 1 is closed to a certain angle, the inner rocker arm 4 drives the transmission block 9 to rotate.

[0040] More specifically, the second buffer is a second hydraulic cylinder 10, which includes a second cylinder body 1001 and a second piston rod 1002 movably mounted on the second cylinder body 1001. In this embodiment, when the second piston rod 1002 extends relative to the second cylinder body 1001, it can generate a buffering effect. Preferably, the other end of the transmission block 9 is hinged to the second piston rod 1002 via a fourth hinge shaft 13 to achieve a transmission connection. The second cylinder body 1001 is hinged within the hinge arm 2 via a fifth hinge shaft 14.

[0041] Therefore, when the hinge cup 1 is closed to a certain angle, the transmission block 9 drives the second piston rod 1002 to extend to buffer the hinge cup 1.

[0042] Of course, it should be noted that in other embodiments, the second cylinder 10 can also be installed in reverse, and the second cylinder body 1001 can be extended by the transmission block 9 to buffer the hinge cup 1, which can also achieve the same technical effect. This is not a limitation.

[0043] Therefore, the closing process of the hinge structure in this embodiment is as follows: When hinge cup 1 is in the fully open state (e.g.) Figure 10-11As shown), the second piston rod 1002 is in the retracted state. When it drives the hinge cup 1 to close, it can drive the inner rocker arm 4 to swing until the hinge cup 1 closes to a certain angle. Then, the inner rocker arm 4 is linked with the transmission block 9 (as shown). Figure 12 As shown), when the hinge cup 1 continues to close, the inner rocker arm 4 drives the transmission block 9 to rotate and pulls the second piston rod 1002 to extend, thus buffering the hinge cup 1 until the hinge cup 1 is fully closed (as shown). Figure 13 (As shown).

[0044] Example 2 See Figure 14-17 The hinge structure in this embodiment differs from that in Embodiment 1 in that the structure of the second buffer component is different. In this embodiment, the second driving block is a sliding seat 15, which is slidably disposed inside the hinge arm 2. The sliding seat 15 has a first protrusion 1501 on each side of its bottom edge, and a second protrusion 402 on the inner rocker arm 4 near the hinge arm 2. The first protrusion 1501 and the second protrusion 402 abut against each other to achieve a transmission connection. Thus, when the hinge cup 1 is closed, the inner rocker arm 4 can be driven to swing synchronously. When the hinge cup 1 is closed to a certain angle, the inner rocker arm 4 drives the sliding seat 15 to slide through the abutment of the second protrusion 402 and the first protrusion 1501.

[0045] More specifically, the second buffer is a third hydraulic cylinder 16, and includes a third cylinder body 1601 and a third piston rod 1602 movably disposed on the third cylinder body 1601; in this embodiment, when the third piston rod 1602 is driven to compress and move relative to the third cylinder body 1601, it can generate a buffering effect; preferably, the sliding seat 15 has an installation groove, and the third hydraulic cylinder 16 is disposed in the installation groove; wherein, the end of the third piston rod 1602 abuts against the inner wall of the installation groove to achieve a transmission connection, and the third cylinder body 1601 partially protrudes from the installation groove and abuts and limits the hinge joint between the outer rocker arm 3 and the hinge arm 2; Therefore, when the hinge cup 1 is closed to a certain angle, the sliding seat 15 compresses the third piston rod 1602 to buffer the hinge cup 1.

[0046] Of course, it should be noted that in other embodiments, the third cylinder 16 can also be installed in reverse, and the third cylinder body 1601 can be compressed by the sliding seat 15 to produce a buffering effect on the hinge cup 1, which can also achieve the same technical effect. This is not a limitation.

[0047] Preferably, it also includes a torsion spring 17 disposed at the hinge of the outer rocker arm 3 and the hinge arm 2, and the third cylinder 1601 abuts and is limited on the torsion spring 17.

[0048] Therefore, the closing process of the hinge structure in this embodiment is as follows: When hinge cup 1 is in the fully open state (e.g.) Figure 14-15 As shown), at this time, the third piston rod 1602 is in the extended state. When it drives the hinge cup 1 to close, it can drive the inner rocker arm 4 to swing until the hinge cup 1 is closed to a certain angle. At this time, the inner rocker arm 4 is linked with the sliding seat 15 (as shown). Figure 16 As shown), when the hinge cup 1 continues to close, the inner rocker arm 4 drives the sliding seat 15 to slide and compress the third piston rod 1602 to achieve a buffering effect on the hinge cup 1 until the hinge cup 1 is fully closed (as shown). Figure 17 (As shown).

[0049] In summary, the hinge structure with dual buffer function provided by this utility model has the following beneficial effects: (i) The hinge structure of this utility model, by setting a first buffer component 5 at the hinge cup 1 and a second buffer component in the hinge arm 2, enables the hinge structure to have both opening buffer and closing buffer functions, thereby slowing down the opening and closing speed of the cabinet door, avoiding cabinet door pinching or collision accidents, and also preventing the cabinet door from violently hitting other objects and causing damage to the cabinet door and hinge structure, thus extending the service life of the product; in addition, by slowing down the opening and closing speed of the cabinet door, it can also avoid the cabinet door from violently hitting and generating huge noise, thereby creating a quiet environment and improving the user experience.

[0050] (ii) The hinge structure of this utility model effectively utilizes the external space and avoids the problem of limited internal space by setting the first buffer component 5 outside the groove 101 of the hinge cup 1.

[0051] 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.

[0052] 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.

[0053] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0054] 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 hinge structure with dual buffer function, comprising a hinge cup and a hinge arm, wherein a rocker arm assembly is provided between the hinge cup and the hinge arm to realize hinged opening and closing, the rocker arm assembly comprising an outer rocker arm and an inner rocker arm, one end of the outer rocker arm and one end of the inner rocker arm being hinged to the hinge cup, and the other end of the outer rocker arm and the other end of the inner rocker arm being hinged to the hinge arm, characterized in that, Also includes: A first buffer assembly is disposed on the hinge cup and includes a first buffer and a first drive block that drives and engages with the first buffer. The first drive block is driven and connected to one end of the outer rocker arm near the hinge cup. The second buffer assembly is disposed inside the hinge arm and includes a second buffer and a second drive block that drives and cooperates with the second buffer. The second drive block is driven to one end of the inner rocker arm near the hinge arm. Specifically, when the hinge cup is opened or closed, the outer rocker arm and the inner rocker arm can be driven to swing back and forth simultaneously; when the hinge cup is opened to a certain angle, the outer rocker arm drives the first drive block to drive the first buffer to move, and the first buffer provides a buffering effect on the hinge cup to achieve opening buffering; when the hinge cup is closed to a certain angle, the inner rocker arm drives the second drive block to drive the second buffer to move, and the second buffer provides a buffering effect on the hinge cup to achieve closing buffering.

2. The hinge structure according to claim 1, characterized in that, The hinge cup has a groove configured to accommodate at least a portion of the rocker arm assembly when the hinge cup is closed; the first buffer assembly is located outside the groove.

3. The hinge structure according to claim 2, characterized in that, The first drive block is hinged to the hinge cup and located on the outer side of the groove; the side of the outer rocker arm near the hinge cup is connected to the first drive block in a transmission manner.

4. The hinge structure according to claim 3, characterized in that, It also includes a drive shaft that passes through the first drive block and is linked with the first drive block. A clearance hole is provided on one side of the hinge cup, and a locking hole is provided on the side of the outer rocker arm near one end of the hinge cup. The drive shaft passes through the clearance hole and is locked and fixed in the locking hole to realize the transmission connection with the outer rocker arm. When the hinge cup is opened, the outer rocker arm can be driven to swing synchronously. The outer rocker arm is engaged with the locking hole through the drive shaft to drive the first drive block to rotate synchronously.

5. The hinge structure according to any one of claims 1-4, characterized in that, The first buffer is a first hydraulic cylinder, and includes a first cylinder body and a first piston rod movably disposed on the first cylinder body. The first buffer assembly also includes a transmission plate, one end of which is connected to the first drive block, and the other end of which is connected to the first cylinder body or the first piston rod. When the hinge cup is opened to a certain angle, the first drive block drives the first cylinder or the first piston rod to extend or retract via the transmission plate to buffer the hinge cup.

6. The hinge structure according to any one of claims 1-4, characterized in that, The second drive block is a transmission block, which is hinged inside the hinge arm; one end of the inner rocker arm near the hinge arm is hinged to one end of the transmission block to achieve a transmission connection; When the hinge cup is closed, the inner rocker arm can be swung synchronously. After the hinge cup is closed to a certain angle, the inner rocker arm drives the transmission block to rotate.

7. The hinge structure according to claim 6, characterized in that, The second buffer is a second hydraulic cylinder, and includes a second cylinder body and a second piston rod movably disposed on the second cylinder body. The other end of the transmission block is hinged to the second piston rod to achieve a transmission connection. When the hinge cup is closed to a certain angle, the transmission block drives the second piston rod to extend and retract to buffer the hinge cup.

8. The hinge structure according to any one of claims 1-4, characterized in that, The second drive block is a sliding seat, which is slidably disposed inside the hinge arm; the sliding seat is provided with a first protrusion, and the inner rocker arm is provided with a second protrusion at one end near the hinge arm, and the first protrusion and the second protrusion abut against each other to achieve a transmission connection; When the hinge cup is closed, the inner rocker arm can be swung simultaneously. After the hinge cup is closed to a certain angle, the inner rocker arm drives the sliding seat to slide through the abutment of the second protrusion and the first protrusion.

9. The hinge structure according to claim 8, characterized in that, The second buffer is a third hydraulic cylinder, and includes a third cylinder body and a third piston rod movably disposed on the third cylinder body; The sliding seat has an installation groove, the third oil cylinder is disposed in the installation groove, the end of the third piston rod abuts against the inner wall of the installation groove to achieve a transmission connection, and the third cylinder body protrudes from the installation groove and abuts against and is limited at the hinge of the outer rocker arm and the hinge arm. When the hinge cup is closed to a certain angle, the sliding seat compresses the third piston rod to buffer the hinge cup.

10. The hinge structure according to claim 9, characterized in that, It also includes a torsion spring disposed at the hinge point between the outer rocker arm and the hinge arm, and the third cylinder body abuts against and is limited on the torsion spring.

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