Mute hinge capable of being closed in buffering mode

Abstract

The utility model relates to the technical field of hinges, in particular to a buffer closed mute hinge which comprises a hinge frame which is a U-shaped metal frame, a protective cover is installed on an opening in the upper end of the hinge frame, a buffer telescopic rod is installed in the hinge frame, and the hinge frame, the protective cover and the buffer telescopic rod form a main structure of the hinge. According to the mute hinge capable of achieving buffering closing, the connecting hinge plate drives the butt joint piece to move, the movement is transmitted to the limiting connecting frame through the first-section connecting piece and the second-section connecting piece, finally the buffering telescopic rod is driven to work, and the buffering spring and the damping structure installed in the buffering telescopic rod effectively slow down the closing speed of door and window parts; the door and window and peripheral structures are prevented from being damaged by impact force generated by rapid closing, further, limiting damping blocks installed in the hinge frames abut against the surfaces of the buffering telescopic rods, damping limiting is further conducted on movement of the buffering telescopic rods, and the overall buffering effect is more stable.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically to a silent hinge with buffer closure. Background Technology

[0002] Hinges, as key mechanical devices that connect two solids and allow rotation between them, are widely used in daily life and industrial production. From common doors and windows to cabinet doors and drawers of various furniture, hinges play an indispensable role.

[0003] Traditional hinges often produce loud impact noise during the closing process due to the lack of cushioning, noise reduction measures, and structural features, which affects the user experience. Furthermore, long-term hard impacts can lead to accelerated wear and tear on the hinges and connecting parts, shortening their service life. Utility Model Content

[0004] The purpose of this invention is to provide a silent hinge with buffer closure, in order to solve the problems mentioned in the background art, such as the lack of buffering and noise reduction measures and structures, which often produce large impact noises, and the long-term hard impacts can also lead to accelerated wear of the hinge and connecting parts, shortening their service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a buffer-closing silent hinge, including a hinge frame, which is configured as a U-shaped metal frame, a protective cover is installed at the upper opening of the hinge frame, and a buffer telescopic rod is installed inside the hinge frame, and the hinge frame, the protective cover and the buffer telescopic rod constitute the main structure of the hinge.

[0006] A U-shaped groove is provided on one end of the hinge frame, and a connecting piece is installed in the groove of the hinge frame. The other end of the connecting piece is rotatably connected to the connecting hinge plate, and the connecting hinge plate is set as a T-shaped plate structure. An auxiliary damping block is provided in the groove of the connecting hinge plate near the hinge frame, and the auxiliary damping block is in contact with the surface of a connecting piece.

[0007] The first section of the connector has a shaft that passes through the hinge plate and the docking piece. One side of the first section of the connector is rotatably connected to the second section of the connector. One end of the second section of the connector has a limit connecting bracket, and the other end of the limit connecting bracket is connected to the connecting sealing cover. The connecting sealing cover is installed at the output end of the buffer telescopic rod.

[0008] By adopting the above technical solution, the multi-segment rotation operation can be effectively realized to achieve a buffering and closing effect during use.

[0009] Preferably, an auxiliary connecting plate is rotatably connected to one side of the bottom end of the hinge frame via a shaft, and the auxiliary connecting plate has a connecting thread inside, and wing-shaped connecting plates are provided on both sides of the hinge frame.

[0010] By adopting the above technical solution, the auxiliary connecting plate and the wing-shaped connecting plates on both sides of the hinge frame facilitate the connection ports between the hinge frame and components such as doors and windows to maintain stability.

[0011] Preferably, a limiting damping block is installed inside the hinge frame, and the surface of the limiting damping block abuts against the surface of the buffer telescopic rod. The outer wall of the buffer telescopic rod is provided with a protruding structure that connects to the hinge frame, and the buffer telescopic rod contains a buffer spring and a damping medium.

[0012] By adopting the above technical solution, the movement of the buffer telescopic rod is further damped and limited by the limiting damping block abutting against the surface of the buffer telescopic rod.

[0013] Preferably, the two ends of the limiting connecting frame have a height difference, and the height difference between the two ends of the limiting connecting frame is consistent with the height difference between the connecting sealing cover and the two connecting parts.

[0014] By adopting the above technical solution and setting the height difference, the movement of the connecting sealing cover and the two-section connector can be precisely limited during the opening and closing of the door and window components.

[0015] Preferably, the limiting connecting frame passes through the sound-absorbing sponge, and the sound-absorbing sponge is installed on the inner wall of the hinge frame and the protective cover.

[0016] By adopting the above technical solution, the sound-absorbing sponge can absorb the noise generated by the hinge during the movement by directly contacting the limiting connection frame.

[0017] Preferably, the shaft diameter of the two connecting parts is smaller than that of the shaft diameter of the first connecting part, and the two connecting parts move within the space formed by the hinge frame and the protective cover.

[0018] By adopting the above technical solution, the working range of the two-section connector is limited, thereby ensuring that the relative movement between the components is smooth and within a reasonable range.

[0019] Preferably, the connecting piece is connected to the hinge frame by a short screw, and a silent damping is provided at the connection between the connecting piece and the connecting hinge plate.

[0020] By adopting the above technical solution, the connecting parts are installed with short screws, which facilitates the connection between the connecting parts and the hinge frame and maintains stability.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the silent hinge with buffer closure:

[0022] 1. When the device is in use, the connecting hinge plate drives the docking parts to move, which is transmitted to the limiting connecting frame through the first and second connecting parts, and finally drives the buffer telescopic rod to work. The buffer spring and damping structure installed inside the buffer telescopic rod effectively slow down the closing speed of the door and window components, avoiding damage to the door, window and surrounding structure caused by the impact force generated by rapid closing. Furthermore, the limiting damping block installed in the hinge frame abuts against the surface of the buffer telescopic rod, further damping and limiting the movement of the buffer telescopic rod, optimizing the buffering process and making the buffering effect more stable.

[0023] 2. Furthermore, the shaft diameter of the second-section connector is smaller than that of the first-section connector, and it moves within the space formed by the hinge frame and the protective cover, effectively ensuring smooth and reasonable relative movement between the components. The protruding structure on the outer wall of the buffer telescopic rod is connected to the hinge frame, which also enhances the connection stability between the buffer telescopic rod and the hinge frame. Even when subjected to large external forces, it can ensure that the buffer telescopic rod works normally and is not prone to loosening.

[0024] 3. An auxiliary damping block inside the device contacts the surface of a connecting piece, effectively reducing friction and impact noise between the connecting hinge plate and the connecting piece during rotation. The limiting connecting frame is installed through the sound-absorbing sponge on the inner wall of the hinge frame and the protective cover. The sound-absorbing sponge can absorb the noise generated by the hinge during movement and convert it into heat energy or other forms of energy, thereby preventing noise transmission. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model;

[0026] Figure 2 A three-dimensional structural diagram of the hinge frame and buffer telescopic rod of this utility model;

[0027] Figure 3 This is a schematic diagram of the overall internal side section of the present invention.

[0028] Figure 4 This is a three-dimensional structural diagram of the hinge frame and limiting damping block of this utility model.

[0029] Figure 5 This is a three-dimensional structural diagram of the installation of a connecting piece and a connecting hinge plate according to this utility model;

[0030] Figure 6 This is a three-dimensional structural diagram of the disassembly and assembly of a connecting piece and a connecting hinge plate of this utility model.

[0031] In the diagram: 1. Hinge frame; 2. Protective cover; 3. Buffer telescopic rod; 4. Connecting sealing cover; 5. Limiting connecting frame; 6. Two-section connector; 7. One-section connector; 8. Auxiliary damping block; 9. Connecting hinge plate; 10. Butt joint; 11. Sound-absorbing sponge; 12. Limiting damping block; 13. Auxiliary connecting plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-6 This utility model provides a technical solution: a buffer-closing silent hinge, including a hinge frame 1, a protective cover 2, a buffer telescopic rod 3, a connecting sealing cover 4, a limiting connecting frame 5, a two-section connecting piece 6, a one-section connecting piece 7, an auxiliary damping block 8, a connecting hinge plate 9, a docking piece 10, a sound-absorbing sponge 11, a limiting damping block 12, and an auxiliary connecting plate 13.

[0034] Among them, the hinge frame 1 is set as a U-shaped metal frame, the upper opening of the hinge frame 1 is equipped with a protective cover 2, and a buffer telescopic rod 3 is installed inside the hinge frame 1. The hinge frame 1, the protective cover 2 and the buffer telescopic rod 3 constitute the main structure of the hinge.

[0035] A U-shaped groove is provided on one end of the hinge frame 1, and a connecting piece 10 is installed in the groove of the hinge frame 1. The other end of the connecting piece 10 is rotatably connected to the connecting hinge plate 9. The connecting hinge plate 9 is a T-shaped plate structure. The connecting piece 10 is connected to the hinge frame 1 by a short screw. A silent damping is provided at the connection between the connecting piece 10 and the connecting hinge plate 9. An auxiliary damping block 8 is provided in the groove of the connecting hinge plate 9 near the hinge frame 1. The auxiliary damping block 8 is in contact with the surface of a connecting piece 7. An auxiliary connecting plate 13 is rotatably connected to one side of the bottom end of the hinge frame 1 by a shaft. A connecting thread is provided in the auxiliary connecting plate 13. Airfoil connecting plates are provided on both sides of the hinge frame 1. A limit damping block 12 is installed in the hinge frame 1. The surface of the limit damping block 12 abuts against the surface of the buffer telescopic rod 3. A protruding structure connected to the hinge frame 1 is provided on the outer wall of the buffer telescopic rod 3. The buffer telescopic rod 3 has a built-in buffer spring and damping medium.

[0036] Referring to the attached diagrams in the instruction manual Figures 1-6As shown, when the device is in use, the hinge can be installed and fixed on corresponding furniture, doors, windows, and other components through the connecting threads in the auxiliary connecting plate 13, which is rotatably connected to the wing-shaped connecting plates on both sides of the hinge frame 1 and the shaft on one side of the bottom. Figure 1 and Figure 4 As shown, the auxiliary connecting plate 13 can rotate within a certain angle range to adapt to different installation requirements;

[0037] As the doors and windows are opened, the connecting hinge plate 9 rotates, causing the docking piece 10 to move. During this process, the docking piece 10 is connected to a first connecting piece 7 via a shaft, causing the first connecting piece 7 to rotate. The first connecting piece 7 drives the second connecting piece 6, which is rotatably connected to it, to move. The rotation of the second connecting piece 6 is centered on the shaft of the first connecting piece 7. The limiting connecting frame 5 is connected to the connecting sealing cover 4 to transmit the movement of the second connecting piece 6. Since the connecting sealing cover 4 is installed at the output end of the buffer telescopic rod 3, it drives the buffer telescopic rod 3 to work.

[0038] The buffer telescopic rod 3 generates a reverse force by utilizing the built-in buffer spring and damping medium, which slows down the closing speed of the door and window components and achieves a buffering effect. During this process, the limiting damping block 12 installed in the hinge frame 1 abuts against the surface of the buffer telescopic rod 3, further damping and limiting the movement of the buffer telescopic rod 3 and optimizing the buffering performance.

[0039] A shaft is provided inside a first-section connector 7, which passes through the hinge plate 9 and the docking part 10. One side of the first-section connector 7 is rotatably connected to the second-section connector 6. One end of the second-section connector 6 is provided with a limiting connecting frame 5. The other end of the limiting connecting frame 5 is connected to the connecting sealing cover 4. The connecting sealing cover 4 is installed at the output end of the buffer telescopic rod 3. The two ends of the limiting connecting frame 5 have a height difference, and the height difference between the two ends of the limiting connecting frame 5 is consistent with the height difference between the connecting sealing cover 4 and the second-section connector 6. The limiting connecting frame 5 passes through the sound-absorbing sponge 11, and the sound-absorbing sponge 11 is installed on the inner wall of the hinge frame 1 and the protective cover 2. The shaft diameter of the second-section connector 6 is smaller than the shaft diameter of the first-section connector 7, and the second-section connector 6 moves within the space formed by the hinge frame 1 and the protective cover 2.

[0040] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, the auxiliary damping block 8 in the groove of the connecting hinge plate 9 contacts the surface of a connecting piece 7. During rotation, the auxiliary damping block 8 reduces the friction and impact noise between the connecting hinge plate 9 and the connecting piece 7. The silent damping provided at the connection between the docking piece 10 and the connecting hinge plate 9 can also reduce the noise generated in this part during rotation. The sound-absorbing sponge 11 penetrated by the limiting connecting frame 5 can absorb the noise generated by the hinge during movement. It works together from multiple aspects to achieve a silent effect.

[0041] Although the two ends of the limiting connecting frame 5 have a height difference, this height difference is consistent with the height difference between the connecting sealing cover 4 and the two-section connecting piece 6. This allows the limiting connecting frame 5 to limit the movement of the connecting sealing cover 4 and the two-section connecting piece 6 through its own structure and cooperation with other components when the door and window components are closed or opened to a certain extent. This ensures that the door and window components are in the appropriate opening and closing position, while avoiding damage to the hinge due to excessive movement. The two-section connecting piece 6 moves within the space formed by the hinge frame 1 and the protective cover 2, and its shaft diameter is smaller than that of the shaft diameter of the first-section connecting piece 7. This design helps to ensure that the relative movement between the components is smooth and within a reasonable range. Combined with the limiting connecting frame 5 and other structures, this makes the hinge work more stable and reliable.

[0042] Working principle: When using this silent hinge with buffer closure, when the component to be closed drives the connecting hinge plate 9 to rotate, the connecting hinge plate 9 pushes the docking part 10 connected to it to move. At this time, the docking part 10 causes a section of the connecting part 7 to rotate through the shaft, and the section of the connecting part 7 drives the second section of the connecting part 6 connected to it to move. As the second section of the connecting part 6 rotates, the connecting sealing cover 4 is connected, which drives the buffer telescopic rod 3 installed in the hinge frame 1 to work. The buffer telescopic rod 3 uses the built-in buffer spring and damping medium to generate a reverse force, which slows down the closing speed of the component and achieves a buffering effect. At the same time, the limiting damping block 12 in the hinge frame 1 abuts against the surface of the buffer telescopic rod 3, further limiting the movement speed of the buffer telescopic rod 3 and optimizing the buffering performance.

[0043] During use, the auxiliary damping block 8 contacts the surface of a connecting piece 7. When the two move relative to each other, the auxiliary damping block 8 can absorb and buffer the vibration generated by rotation, reducing friction and impact noise. The silent damping set at the connection between the docking piece 10 and the connecting hinge plate 9 can also effectively reduce the noise generated by rotation at this point. At the same time, the sound-absorbing sponge 11 installed on the inner wall of the hinge frame 1 and the protective cover 2 will absorb the noise generated and propagated when the hinge components move, converting the noise energy into other forms, thereby achieving a silent effect and increasing the overall practicality.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A silent hinge with buffer closure, comprising: The hinge frame (1) is configured as a U-shaped metal frame. A protective cover (2) is installed at the upper opening of the hinge frame (1), and a buffer telescopic rod (3) is installed inside the hinge frame (1). The hinge frame (1), the protective cover (2) and the buffer telescopic rod (3) constitute the main structure of the hinge. The feature is that: a section of the hinge frame (1) is provided with a U-shaped groove, and a connecting piece (10) is installed in the groove of the hinge frame (1). The other end of the connecting piece (10) is rotatably connected to the connecting hinge plate (9). The connecting hinge plate (9) is set as a T-shaped plate structure. An auxiliary damping block (8) is provided in the groove of the connecting hinge plate (9) near the hinge frame (1). The auxiliary damping block (8) is in contact with the surface of a section of the connecting piece (7). The first section connector (7) is provided with a shaft that passes through the connecting hinge plate (9) and the docking piece (10), and one side of the first section connector (7) is rotatably connected to the second section connector (6). One end of the second section connector (6) is provided with a limiting connecting frame (5), and the other end of the limiting connecting frame (5) is connected to the connecting sealing cover (4). The connecting sealing cover (4) is installed at the output end of the buffer telescopic rod (3).

2. The silent hinge with buffer closure according to claim 1, characterized in that: The hinge frame (1) has an auxiliary connecting plate (13) rotatably connected to one side of the bottom end via a shaft, and the auxiliary connecting plate (13) has a connecting thread inside, and the hinge frame (1) has wing-shaped connecting plates on both sides.

3. The silent hinge with buffer closure according to claim 1, characterized in that: The hinge frame (1) is equipped with a limiting damping block (12), and the surface of the limiting damping block (12) abuts against the surface of the buffer telescopic rod (3). The outer wall of the buffer telescopic rod (3) is provided with a protruding structure connected to the hinge frame (1), and the buffer telescopic rod (3) is equipped with a buffer spring and a damping medium.

4. The silent hinge with buffer closure according to claim 1, characterized in that: The two ends of the limiting connecting frame (5) have a height difference, and the height difference between the two ends of the limiting connecting frame (5) is consistent with the height difference between the connecting sealing cover (4) and the two-section connecting piece (6).

5. A silent hinge with buffer closure according to claim 1, characterized in that: The limiting connecting frame (5) penetrates the sound-absorbing sponge (11), and the sound-absorbing sponge (11) is installed on the inner wall of the hinge frame (1) and the protective cover (2).

6. A silent hinge with buffer closure according to claim 1, characterized in that: The shaft diameter of the two-section connector (6) is smaller than that of the shaft diameter of the first-section connector (7), and the two-section connector (6) moves within the space formed by the hinge frame (1) and the protective cover (2).

7. A silent hinge with buffer closure according to claim 1, characterized in that: The docking part (10) is connected to the hinge frame (1) by a short screw, and a silent damping is provided at the connection between the docking part (10) and the connecting hinge plate (9).

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