A buffer hinge with reduced friction

Abstract

The application provides a buffer hinge with a reduced friction function, comprising a hinge cup, a transmission arm group and a hinge base, one end of the transmission arm group is hingedly connected to the hinge cup, the other end of the transmission arm group is hingedly connected to the hinge base, the hinge cup is provided with a buffer damping assembly and a touch block, the touch block is provided with a connecting protruding edge part and a touch protruding edge part, the buffer damping assembly is installed on the hinge cup, a push rod of the buffer damping assembly is connected to the touch block, the touch block is arranged in an inner cavity of the hinge cup, the touch protruding edge part is arranged at a rear end of the touch block, the transmission arm group can abut against the touch protruding edge part when the hinge cup is closed, so that the touch block moves linearly and the buffer assembly is actuated, the connecting protruding edge part is arranged on a bottom surface of the touch block and can be slidably connected to a bottom surface in the inner cavity of the hinge cup when the touch block moves linearly. The structure is simple, the overall occupied volume is reduced, the buffer effect is achieved, the running friction is reduced, the transmission stability is improved, and the normal use of the product is ensured.

Description

Technical Field

[0001] This invention relates to the field of hinge technology, specifically a buffer hinge with friction reduction function. Background Technology

[0002] Hinges are widely used in furniture and appliances. The structure of existing hinges generally includes a hinge cup installed on the door, a hinge seat installed on the cabinet, and a transmission arm assembly hinged between the hinge cup and the hinge seat. The transmission arm assembly enables the hinge cup to open and close on the hinge seat, thereby enabling the door to open and close on the cabinet.

[0003] Furthermore, during the closing process, the door can be automatically closed. Generally, a power source for self-closing is added to the transmission arm assembly. This power source uses a torsion spring, which has a simple structure and realizes the automatic closing function of the hinge.

[0004] However, the above-mentioned traditional hinges have the following shortcomings in use: 1) Traditional hinges add a buffer damper to the hinge seat. Although this increases the buffering effect, it makes the overall size of the hinge large, which is not suitable for use in thinner furniture and appliances.

[0005] 2) Traditional hinges can add a buffer damper to the hinge cup, but this results in greater friction in the hinge cup transmission, making it difficult for the buffer damper to reset. Therefore, a reset spring needs to be added inside the hinge cup, which leads to a complex structure, high cost, and large volume occupation. At the same time, transmission components are prone to detachment or jamming during transmission, resulting in poor transmission stability and seriously affecting the normal use of the product. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a buffer hinge with friction reduction function. It has a simple structure, reduces the overall volume, has a buffering effect, reduces running friction, improves transmission stability, and ensures normal use of the product.

[0007] The objective of this invention is achieved as follows: a buffer hinge with friction reduction function, comprising a hinge cup, a transmission arm assembly, and a hinge seat. One end of the transmission arm assembly is hinged to the hinge cup via a U-shaped pin, and the other end of the transmission arm assembly is hinged to the hinge seat via a connecting pin assembly. The hinge cup is provided with a buffer damping component and an actuating block. The actuating block has a connecting protrusion for reducing friction and an actuating protrusion for activating the buffer damping component. The buffer damping component is mounted on the hinge cup, and its push rod is connected to the actuating block. The actuating block is located within the inner cavity of the hinge cup. The actuating protrusion is located at the rear end of the actuating block. As the hinge cup closes, the transmission arm assembly abuts against the actuating protrusion, causing the actuating block to move linearly and activate the buffer damping component. The connecting protrusion is located on the bottom surface of the actuating block and can slide on the bottom surface of the inner cavity of the hinge cup as the actuating block moves linearly.

[0008] Based on the above optimization, the actuating block is provided with a linkage protrusion that can be reset and slid as the buffer damping component is reset. The linkage protrusion is distributed at the front end of the actuating block and is always connected to the push rod of the buffer damping component.

[0009] Based on the above optimization, the linkage protrusion is configured as an inclined linkage protrusion that is always connected to the push rod of the buffer damping component as the trigger block moves linearly.

[0010] Based on the above optimization, the buffer damping assembly includes at least one buffer damper. The left and right sides of the hinge cup are respectively provided with mounting holes. The buffer damper can be installed and removed from the mounting holes, and the cylinder of the buffer damper abuts against the U-shaped pin. The push rod of the buffer damper is connected to the linkage protrusion.

[0011] Based on the above optimization, the hinge cup is provided with a limiting block for installing the buffer damping component, and the outer edge of the limiting block is provided with a plurality of snap-fit ​​blocks, and the hinge cup is provided with snap-fit ​​holes for fitting and mounting with the snap-fit ​​blocks.

[0012] Based on the above optimization, the bottom surface of the limiting block is provided with a supporting protrusion. The limiting block is adapted to be installed in the inner cavity of the hinge cup, while the supporting protrusion is adapted to be supported on the bottom surface of the inner cavity of the hinge cup, so that the limiting block and the bottom surface of the inner cavity of the hinge cup form a sliding groove for adapting to the linear sliding of the trigger block.

[0013] Based on the above optimization, the connecting protrusion includes a circular connecting protrusion formed by downward stamping, and the circular connecting protrusion is distributed at the four corners of the bottom surface of the touch block.

[0014] Based on the above optimization, the transmission arm assembly includes a hinged arm and a transmission rod, and the connecting pin assembly includes a first connecting pin and a second connecting pin. The front ends of the hinged arm and the transmission rod are respectively hinged to the hinge cup by U-shaped pins, and the rear ends of the hinged arm and the transmission rod are respectively hinged to the hinge seat by the first connecting pin and the second connecting pin. One end of the hinged arm is provided with a pushing protrusion for abutting or separating from the touch protrusion as the hinge cup opens and closes.

[0015] Based on the above optimization, the first connecting pin is fitted with a torsion spring for automatic closing of the hinge cup, and the two elastic ends of the torsion spring are respectively connected to the hinge arm and the transmission rod.

[0016] The advantages of this invention are: 1) By combining the structure of the buffer damping component, the actuating block, and the transmission arm assembly, the buffer damping component can be built into the hinge cup, which simplifies the structure and reduces the overall product volume. At the same time, when the hinge cup is closed, the transmission arm assembly pushes the actuating block to move, and the connecting convex edge slides to the bottom surface of the hinge cup cavity, reducing the friction area. This allows the actuating block to move back and forth more smoothly without adding a return spring, utilizing the built-in return function of the buffer damping component, thus improving operational stability and ensuring the product's performance.

[0017] 2) Under the action of the triggering convex edge, when closed, the hinge arm of the transmission arm assembly abuts against the triggering convex edge, creating a linkage relationship, thereby pushing the trigger block to move, and then making the buffer damping component work, so as to achieve the purpose of slow closing of the product.

[0018] 3) By adding a linkage protrusion, the buffer damping component is always connected to the touch block during the movement, which avoids the phenomenon of the touch block disengaging from the transmission parts such as the buffer damping component or jamming during operation, thereby improving transmission stability and ensuring normal operation of the product. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0021] Figure 2 This is a cross-sectional view of a preferred embodiment of the present invention.

[0022] Figure 3 This is a structural diagram of the preferred embodiment of the present invention when it is turned on (limiting blocks omitted).

[0023] Figure 4 This is a schematic diagram of the structure in the fully closed state of a preferred embodiment of the present invention (restriction blocks omitted).

[0024] Figure 5 This is an exploded view of a preferred embodiment of the present invention.

[0025] Figure 6 This is a partial assembly diagram of the hinge cup according to a preferred embodiment of the present invention.

[0026] Figure 7 This is a partial exploded view of the hinge cup according to a preferred embodiment of the present invention.

[0027] Figure 8 This is a partial exploded view of the hinge cup at another angle according to a preferred embodiment of the present invention.

[0028] Figure 9 This is a schematic diagram showing the connection between the trigger block and the buffer damping component in different states according to a preferred embodiment of the present invention. Detailed Implementation

[0029] The present invention will now be further described with reference to the accompanying drawings.

[0030] According to the appendix Figures 1 to 9 As shown, the friction-reducing buffer hinge of the present invention includes a hinge cup 1, a transmission arm assembly 2, and a hinge seat 3. One end of the transmission arm assembly 2 is hinged to the hinge cup 1 via a U-shaped pin 6, and the other end of the transmission arm assembly 2 is hinged to the hinge seat 3 via a connecting pin assembly. The hinge cup 1 is provided with a buffer damping component 4 and an actuating block 5. The actuating block 5 has a connecting protrusion 51 for reducing friction and an actuating protrusion 52 for activating the buffer damping component 4. The buffer damping component 4 is mounted on the hinge cup 1, and the push rod of the buffer damping component 4 is connected to the actuating block 5. The actuating block 5 is located in the inner cavity of the hinge cup 1, and the actuating protrusion 52 is located at the rear end of the actuating block 5. The transmission arm assembly 2 can abut against the touch protrusion 52 as the hinge cup 1 closes, causing the touch block 5 to move linearly and trigger the buffer damping assembly 4 to operate. The connecting protrusion 51 is provided on the bottom surface of the touch block 5 and can be slidably connected to the bottom surface of the inner cavity of the hinge cup 1 as the touch block 5 moves linearly.

[0031] Reference Figures 1 to 9 As shown, in further detail, the connecting protrusion 51 includes a circular connecting protrusion formed by downward stamping, and the circular connecting protrusion is distributed at the four corners of the bottom surface of the actuating block 5.

[0032] When the hinge cup 1 is closed, the transmission arm assembly 2 pushes the touch block 5 to move. The long strip connecting protrusion and the circular connecting protrusion of the connecting protrusion 51 slide to the bottom surface of the inner cavity of the hinge cup 1, reducing the friction area. This makes the touch block 5 move more smoothly back and forth using the built-in reset function of the buffer damping assembly 4 without adding a reset spring, improving the stability of operation and ensuring the product's performance.

[0033] Reference Figures 1 to 3 As shown in the figure, in further detail, the actuating block 5 is provided with a linkage protrusion 53 that can be reset and slid as the buffer damping component 4 is reset. The linkage protrusion 53 is distributed at the front end of the actuating block 5 and is always connected to the push rod of the buffer damping component 4.

[0034] The linkage protrusion 53 is configured as an inclined linkage protrusion that is always connected to the push rod of the buffer damping assembly 4 as the actuating block 5 moves linearly.

[0035] In this way, by adding the linkage protrusion 53, the buffer damping component 4 is always connected to the touch block 5 during the movement, avoiding the phenomenon of the touch block 5 disengaging from the transmission parts such as the buffer damping component 4 or getting stuck during operation, thus improving the transmission stability and ensuring the normal operation of the product.

[0036] In the optimized scheme, the hinge cup 1 is provided with a limiting block 7 for installing the buffer damping component 4. The outer edge of the limiting block 7 is provided with a plurality of snap-fit ​​blocks 71. The hinge cup 1 has snap-fit ​​holes 12 for snap-fitting the snap-fit ​​blocks 71.

[0037] With the structural cooperation between the limiting block 7 and the snap-fit ​​hole 12, the limiting block 7 can be easily disassembled and assembled, and the buffer damping component 4 can be easily maintained and replaced, ensuring the buffering effect and ensuring transmission stability.

[0038] Meanwhile, the bottom surface of the limiting block 7 is provided with a supporting protrusion 72. The limiting block 7 is adapted to be installed in the inner cavity of the hinge cup 1, while the supporting protrusion 72 is adapted to be supported on the bottom surface of the inner cavity of the hinge cup 1, so that the limiting block 7 and the bottom surface of the inner cavity of the hinge cup 1 form a sliding groove 13 adapted to the linear sliding of the trigger block 5.

[0039] The limiting block 7 using this structure is simple in structure, can prevent the buffer damping component 4 from detaching from the hinge cup 1 during operation, and ensures that the touch block 5 slides smoothly, thereby enhancing the stability of transmission operation and making it reliable and practical.

[0040] Reference Figures 1 to 9 As shown, further detailed, the buffer damping assembly 4 includes at least one buffer damper. In the hinge of this structure, the buffer damping assembly 4 includes two buffer dampers. Mounting holes 11 are respectively opened on the left and right sides of the hinge cup 1. The buffer damper can be installed and removed from the mounting holes 11, and the cylinder of the buffer damper abuts against the U-shaped pin 6. The push rod of the buffer damper is connected to the linkage protrusion 53.

[0041] In the optimized scheme, the transmission arm assembly 2 includes a hinged arm 21 and a transmission rod 22. The connecting pin assembly includes a first connecting pin 8 and a second connecting pin 9. The front ends of the hinged arm 21 and the transmission rod 22 are respectively hinged to the hinge cup 1 by U-shaped pins 6, and the rear ends of the hinged arm 21 and the transmission rod 22 are respectively hinged to the hinge seat 3 by the first connecting pin 8 and the second connecting pin 9. One end of the hinged arm 21 is provided with a pushing protrusion 23 for abutting or separating from the contact protrusion 52 as the hinge cup 1 opens and closes.

[0042] The first connecting pin 8 is fitted with a torsion spring 10 for automatic closing of the hinge cup 1, and the two elastic ends of the torsion spring 10 are respectively connected to the hinge arm 21 and the transmission rod 22.

[0043] The damping assembly 4 is built into the hinge cup 1, which is simple in structure and reduces the overall size of the product. When closing, the hinge cup 1 automatically closes towards the hinge seat 3 under the elastic action of the torsion spring 10. During this process, the pushing protrusion 23 of the hinge arm 21 abuts against the touching protrusion, creating a linkage relationship, which pushes the touching block 5 to move, causing the damping device to compress and work, so as to achieve the purpose of automatic and slow closing of the hinge cup 1. The structure is simple, easy to operate, and has a significant damping effect, ensuring the quality of product use.

[0044] The above specific embodiments are merely specific implementations of the present invention with better effects. Any structure that is the same as or equivalent to the buffer hinge with friction reduction function of the present invention is within the protection scope of the present invention.

Claims

1. A buffer hinge with friction reduction function, comprising a hinge cup (1), a transmission arm assembly (2), and a hinge seat (3), wherein one end of the transmission arm assembly (2) is hinged to the hinge cup (1) via a U-shaped pin (6), and the other end of the transmission arm assembly (2) is hinged to the hinge seat (3) via a connecting pin assembly, characterized in that: The hinge cup (1) is provided with a buffer damping assembly (4) and an actuating block (5). The actuating block (5) is provided with a connecting protrusion (51) for reducing friction and an actuating protrusion (52) for actuating the buffer damping assembly (4). The buffer damping assembly (4) is installed on the hinge cup (1) and the push rod of the buffer damping assembly (4) is connected to the actuating block (5). The actuating block (5) is placed in the inner cavity of the hinge cup (1). The actuating protrusion (52) is located at the rear end of the actuating block (5). The transmission arm assembly (2) can abut against the actuating protrusion (52) as the hinge cup (1) closes, so that the actuating block (5) moves linearly and actuates the buffer damping assembly (4). The connecting protrusion (51) is located on the bottom surface of the actuating block (5) and can slide on the bottom surface of the inner cavity of the hinge cup (1) as the actuating block (5) moves linearly.

2. The buffer hinge with friction reduction function according to claim 1, characterized in that: The actuating block (5) is provided with a linkage protrusion (53) that can be reset and slid when the buffer damping assembly (4) is reset. The linkage protrusion (53) is distributed at the front end of the actuating block (5) and is always connected to the push rod of the buffer damping assembly (4).

3. The buffer hinge with friction-reducing function according to claim 2, characterized in that: The linkage protrusion (53) is configured as an inclined linkage protrusion that is always connected to the push rod of the buffer damping assembly (4) as the actuating block (5) moves linearly.

4. The buffer hinge with friction-reducing function according to claim 2, characterized in that: The buffer damping assembly (4) includes at least one buffer damper. The left and right sides of the hinge cup (1) are respectively provided with mounting holes (11). The buffer damper can be installed and removed from the mounting holes (11). The cylinder of the buffer damper abuts against the U-shaped pin (6). The push rod of the buffer damper is connected to the linkage protrusion (53).

5. The buffer hinge with friction-reducing function according to claim 1, characterized in that: The hinge cup (1) is provided with a limiting block (7) for installing the limiting buffer damping component (4). The outer edge of the limiting block (7) is provided with a plurality of snap-fit ​​blocks (71). The hinge cup (1) has snap-fit ​​holes (12) for matching and snap-fitting the snap-fit ​​blocks (71).

6. The buffer hinge with friction-reducing function according to claim 5, characterized in that: The bottom surface of the limiting block (7) is provided with a supporting protrusion (72). The limiting block (7) is adapted to be installed in the inner cavity of the hinge cup (1), while the supporting protrusion (72) is adapted to be supported on the bottom surface of the inner cavity of the hinge cup (1), so that the limiting block (7) and the bottom surface of the inner cavity of the hinge cup (1) form a sliding groove (13) adapted to the linear sliding of the trigger block (5).

7. The buffer hinge with friction-reducing function according to claim 1, characterized in that: The connecting protrusion (51) includes a circular connecting protrusion formed by downward stamping, which is distributed at the four corners of the bottom surface of the trigger block (5).

8. The buffer hinge with friction-reducing function according to claim 1, characterized in that: The transmission arm assembly (2) includes a hinge arm (21) and a transmission rod (22). The connecting pin assembly includes a first connecting pin (8) and a second connecting pin (9). The front ends of the hinge arm (21) and the transmission rod (22) are respectively hinged to the hinge cup (1) by U-shaped pins (6). The rear ends of the hinge arm (21) and the transmission rod (22) are respectively hinged to the hinge seat (3) by the first connecting pin (8) and the second connecting pin (9). One end of the hinge arm (21) is provided with a pushing protrusion (23) for contacting or separating from the touch protrusion (52) as the hinge cup (1) opens and closes.

9. The buffer hinge with friction-reducing function according to claim 8, characterized in that: The first connecting pin (8) is fitted with a torsion spring (10) for the automatic closing of the hinge cup (1), and the two elastic ends of the torsion spring (10) are respectively connected to the hinge arm (21) and the transmission rod (22).

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