A new compact damper hinge

Abstract

The utility model relates to hinge technical field discloses a novel compact damping hinge, including hinge body one, hinge body one outer wall one side fixedly connected with rotating sleeve no.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to a novel compact damping hinge. Background Technology

[0002] In the fields of modern furniture, architectural decoration and industrial equipment, hinges are the core components that connect fixed and moving parts. Their performance directly affects the safety, stability and service life of the equipment. As users continue to increase their requirements for space utilization, ease of operation and safety protection, compact damping hinges that have the functions of stable angle stopping and slow closing have become a hot spot in the market.

[0003] In the existing technology, common damping hinges are mostly composed of leaf plates, hinge shafts, spring assemblies and damping assemblies. Their technical principle is usually to realize the relative rotation between the leaf plates through the hinge shaft, and to use the elastic deformation of the spring assembly to store or release energy to drive the moving parts to automatically reset. The damping function mostly relies on independently set damping cylinders, which generate a buffering effect through the viscous resistance of the oil.

[0004] However, in existing technologies, solutions that rely on high friction or mechanical locking to achieve full-angle hovering often sacrifice the door's ability to automatically and smoothly close without external intervention, resulting in insufficient convenience. Solutions that rely on springs or hydraulic damping to achieve automatic closing typically have weak or unstable hovering functions, and the damping force may decrease sharply at the end of the closing stroke, causing the door to accelerate downwards under gravity, thus affecting the safety and flexibility of the hinge. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a novel compact damping hinge, which aims to improve the problem that the solution of achieving full-angle suspension by relying on high friction or mechanical locking often sacrifices the door leaf's ability to automatically and smoothly close without external force intervention. The solution of achieving automatic closing by relying on spring or hydraulic damping usually has a weak or unstable suspension function, which affects the safety and flexibility of the hinge.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel compact damping hinge, comprising a hinge body one, a rotating sleeve two fixedly connected to one side of the outer wall of the hinge body one, a hinge shaft rotatably connected to the inner wall of the rotating sleeve two, a rotating sleeve one rotatably connected to the outer wall of the hinge shaft, a hinge body two fixedly connected to the outer wall of the rotating sleeve one, locking pins provided at both ends of the hinge shaft, and a damping component provided on the inner wall of the hinge shaft;

[0007] The damping assembly includes a damping cylinder and a piston rod. The outer wall of the damping cylinder is fixedly connected to the inner wall of the hinge shaft. The outer wall of the piston rod is slidably connected to the inner wall of the damping cylinder. A sliding rod is fixedly connected to the outer wall of the piston rod. A rotating tube is slidably connected to the outer wall of the piston rod. One side of the outer wall of the rotating tube is fixedly connected to the inner wall of a rotating sleeve. A guide hole is opened on the outer wall of the rotating tube. The outer wall of the sliding rod is slidably connected to the inner wall of the guide hole.

[0008] Furthermore, a torsion spring is fixedly connected to one end of the rotating tube, the outer wall of the torsion spring is fixedly connected to the inner wall of the hinge shaft, and a rotating block is fixedly connected to one end of the torsion spring.

[0009] Furthermore, one side of the outer wall of the rotating block is fixedly connected to the inner wall of the rotating sleeve, and a pressing rod is fixedly connected to one side of the outer wall of the rotating block.

[0010] Furthermore, one end of the extrusion rod is provided with a friction plate, and a groove is formed on one side of the outer wall of the friction plate. One end of the extrusion rod is slidably connected to the inner wall of the groove.

[0011] Furthermore, a second friction plate is fixedly connected to the inner wall of the hinge shaft, one side of the outer wall of the second friction plate is disposed outside the first friction plate, and a connecting rod is fixedly connected to one side of the outer wall of the second friction plate.

[0012] Furthermore, a sector-shaped guide rail is fixedly connected to the upper surfaces of hinge body one and hinge body two, and a rotating plate is slidably connected to the inner wall of the sector-shaped guide rail.

[0013] Furthermore, a connecting block is fixedly connected to the lower surface of the rotating plate, a worm is rotatably connected to the inner wall of the connecting block, and worm wheels are fixedly connected to the upper surfaces of hinge body one and hinge body two, with the tooth ends of the worm meshing with the tooth ends of the worm wheel.

[0014] Furthermore, a buffer strip is fixedly connected to the outer wall of the rotating plate, and an adjusting head is fixedly connected to one end of the worm gear.

[0015] This utility model has the following beneficial effects:

[0016] In this invention, when the opening angle is large, the pressing rod presses the friction plate one and the friction plate two together to generate friction, providing sufficient resistance so that the hinge body two can remain stably at any opening angle. During the closing process, when the friction plate one and the friction plate two separate, the spring releases elastic potential energy to drive the hinge body two to rotate. At the same time, the rotating sleeve one drives the piston rod to slide in the damping cylinder. The sliding of the piston rod is subject to the viscous resistance of the damping oil, producing a damping effect, thereby achieving the slow closing of the hinge body two. This avoids the problem of the hinge falling rapidly and causing injury to personnel, thus improving the safety and flexibility of use and enhancing the practicality of the device.

[0017] In this invention, by rotating the adjusting head, the worm gear is driven to rotate, thereby enabling the worm gear to slide along a fan-shaped curve on the worm wheel, thus changing the angle of the rotating plate. The angle of the rotating plate determines the maximum opening angle limit point of the second hinge body relative to the first hinge body, thereby achieving precise and stable setting and locking of the maximum opening angle of the door and window, meeting the needs of diverse usage scenarios, and thus improving the practicality of the device. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of a novel compact damping hinge proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the hinge shaft portion of a novel compact damping hinge proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the damping cylinder part of a novel compact damping hinge proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the rotating block structure of a novel compact damping hinge proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the rotating plate portion of a novel compact damping hinge proposed in this utility model.

[0023] Figure 6 This is a schematic diagram of the adjusting head part of a novel compact damping hinge proposed in this utility model.

[0024] Legend:

[0025] 1. Hinge body one; 2. Hinge body two; 3. Rotating sleeve one; 4. Rotating sleeve two; 5. Locking pin; 6. Damping cylinder; 7. Piston rod; 8. Slide rod; 9. Rotary tube; 10. Guide hole; 11. Torsion spring; 12. Rotating block; 13. Pressing rod; 14. Friction plate one; 15. Slide groove; 16. Friction plate two; 17. Connecting rod; 18. Sector guide rail; 19. Rotating plate; 20. Buffer bar; 21. Connecting block; 22. Worm gear; 23. Hinge shaft; 24. Adjusting head; 25. Worm wheel. Detailed Implementation

[0026] 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.

[0027] Reference Figures 1-4 This utility model provides an embodiment of a novel compact damping hinge, comprising a hinge body 1, a rotating sleeve 4 fixedly connected to one side of the outer wall of the hinge body 1, and a hinge shaft 23 rotatably connected to the inner wall of the rotating sleeve 4. The hinge shaft 23 is made of a specially customized carbon fiber composite material, which is resistant to high temperature, corrosion, and wear, and has a certain degree of toughness while ensuring high hardness. A rotating sleeve 3 is rotatably connected to the outer wall of the hinge shaft 23, and a hinge body 2 is fixedly connected to the outer wall of the rotating sleeve 3. Both the hinge body 1 and the hinge body 2 are made of high-strength stainless steel with surface treatment to improve the wear resistance and corrosion resistance of the product. Locking pins 5 are provided at both ends of the hinge shaft 23, and a damping component is provided on the inner wall of the hinge shaft 23 to dampen the hinge. The damping assembly includes a damping cylinder 6 and a piston rod 7. The damping oil filled in the damping cylinder 6 is a silicone-based hydraulic oil, which provides viscous resistance, a fact well-known and will not be elaborated upon here. The outer wall of the damping cylinder 6 is fixedly connected to the inner wall of the hinge shaft 23. The outer wall of the piston rod 7 is slidably connected to the inner wall of the damping cylinder 6. A slide rod 8 is fixedly connected to the outer wall of the piston rod 7, and a rotating tube 9 is slidably connected to the outer wall of the piston rod 7. One side of the outer wall of the rotating tube 9 is fixedly connected to the inner wall of the rotating sleeve 3. A guide hole 10 is opened on the outer wall of the rotating tube 9. The outer wall of the slide rod 8 is slidably connected to the inner wall of the guide hole 10. The rotating tube 9 slides in conjunction with the guide hole 10 and the slide rod 8, thereby converting the rotation of the rotating tube 9 into the linear displacement of the piston rod 7, thus driving the damping cylinder 6. The piston movement effect is achieved by a torsion spring 11 fixedly connected to one end of the rotating tube 9. The torsion spring 11 stores and releases elastic potential energy, thereby absorbing rotational energy when the hinge is opened and assisting in rotating the hinge body 2 when closed, reducing the user's operating force. The outer wall of the torsion spring 11 is fixedly connected to the inner wall of the hinge shaft 23, and a rotating block 12 is fixedly connected to one end of the torsion spring 11. The rotating block 12 works in conjunction with the pressing rod 13 to drive the pressing rod 13 to slide in the slide groove 15 when the opening and closing angle changes, thus achieving the effect of controlling the position of the friction plate 14. One side of the outer wall of the rotating block 12 is fixedly connected to the inner wall of the rotating sleeve 3, and the pressing rod 13 is fixedly connected to one side of the outer wall of the rotating block 12. One end of the pressure rod 13 is provided with a friction plate 14. A groove 15 is provided on one side of the outer wall of the friction plate 14. The groove 15 is used to guide the pressure rod 13 to slide, thereby allowing the friction plate 14 to move freely within a specific angle, ensuring that friction contact is triggered only when needed. One end of the pressure rod 13 is slidably connected to the inner wall of the groove 15. A second friction plate 16 is fixedly connected to the inner wall of the hinge shaft 23. One side of the outer wall of the second friction plate 16 is located outside the friction plate 14. A connecting rod 17 is fixedly connected to one side of the outer wall of the second friction plate 16. The first friction plate 14 and the second friction plate 16 make friction contact, thereby generating sliding resistance when the opening and closing angle exceeds the threshold, achieving the effect of stopping the second hinge body 2 at any angle.

[0028] Reference Figure 5 and Figure 6A sector-shaped guide rail 18 is fixedly connected to the upper surfaces of hinge body 1 and hinge body 2. A rotating plate 19 is slidably connected to the inner wall of the sector-shaped guide rail 18. A connecting block 21 is fixedly connected to the lower surface of the rotating plate 19. A worm gear 22 is rotatably connected to the inner wall of the connecting block 21. A worm wheel 25 is fixedly connected to the upper surfaces of hinge body 1 and hinge body 2. The tooth ends of the worm gear 22 mesh with the tooth ends of the worm wheel 25. The worm gear 22 and the worm wheel 25 perform meshing motion, thereby driving the rotating plate 19 to move within the sector-shaped guide rail 18, thus adjusting the maximum opening angle. The worm gear 25 and worm 22 are made of high-strength alloy steel and are designed to withstand repeated meshing forces, which is common knowledge and will not be elaborated further here. A buffer strip 20 is fixedly connected to the outer wall of the rotating plate 19. The buffer strip 20 is used to provide soft limiting, thereby absorbing the impact when the rotating plate 19 reaches the set angle, preventing hard impact, reducing noise and structural damage. An adjustment head 24 is fixedly connected to one end of the worm 22. The adjustment head 24 is used to manually rotate the worm 22, so that the user can easily adjust the maximum opening angle and improve applicability.

[0029] Working principle: When using this new compact damping hinge for opening and closing operations, the locking pin 5 first limits and fixes the hinge shaft 23 to prevent axial movement during rotation, ensuring the stability of the hinge structure. During opening, the hinge body 2 is rotated, which drives the rotating sleeve 3 and rotating block 12 to rotate around the hinge shaft 23. The rotation of the rotating sleeve 3 and rotating block 12 causes the torsion spring 11 to undergo torsional deformation, storing elastic potential energy. The rotating sleeve 3 synchronously drives the rotating... When tube 9 rotates, it forms a sliding engagement with the slide rod 8 on piston rod 7 through guide hole 10. This rotation of tube 9 pushes slide rod 8 along the direction of guide hole 10, thereby causing piston rod 7 to slide away from damping cylinder 6. Simultaneously, rotating block 12 synchronously drives extrusion rod 13 to slide within slide groove 15. When the opening angle is small, extrusion rod 13 only slides within slide groove 15. When the opening angle exceeds the stroke of extrusion rod 13 within slide groove 15, extrusion rod 13 slides out of slide groove 15 and pushes... The first friction plate 14 moves towards the second friction plate 16 and fits tightly together. Friction is generated at the contact surface between the first friction plate 14 and the second friction plate 16, increasing the hinge's rotational resistance. This allows the second hinge body 2 to stop at any position. When closed, the second hinge body 2 rotates in the opposite direction, causing the rotating block 12, rotating sleeve 3, and rotating block 12 to rotate around the hinge shaft 23. Simultaneously, the rotating block 12 drives the pressing rod 13 to slide. When a certain angle is reached, the pressing rod 13 slides into the groove 15. The pressing rod 13 no longer presses the friction plate 14, reducing the friction between the friction plate 14 and the friction plate 16. The spring releases its elastic potential energy, causing the hinge body 2 to rotate. At the same time, the rotating sleeve 3 causes the piston rod 7 to slide back into the damping cylinder 6. Since there is damping oil in the damping cylinder 6, the sliding of the piston rod 7 will be subject to the viscous resistance of the damping oil, producing a damping effect. This achieves the slow closing of the hinge body 2, thereby preventing the hinge from falling rapidly and causing injury to personnel, thus improving the safety and flexibility of use.

[0030] Secondly, by rotating the adjusting head 24, the worm gear 22 is driven to rotate. Since the worm wheel 25 is fixed, the worm gear 22 slides along the fan-shaped curve on the worm wheel 25. At the same time, the rotating plate 19 slides in the fan-shaped guide rail 18, thereby changing the angle of the rotating plate 19. The angle of the rotating plate 19 determines the maximum opening angle limit point of the hinge body 2 relative to the hinge body 1. The buffer strip 20 on the rotating plate 19 provides a gentle physical limit and buffer when the set angle is reached to prevent hard impact, thereby achieving precise and stable setting and locking of the maximum opening angle of the door and window to meet the needs of diverse usage scenarios.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel compact damping hinge, comprising a hinge body (1), characterized in that: A rotating sleeve 2 (4) is fixedly connected to one side of the outer wall of the hinge body 1 (1). A hinge shaft (23) is rotatably connected to the inner wall of the rotating sleeve 2 (4). A rotating sleeve 1 (3) is rotatably connected to the outer wall of the hinge shaft (23). A hinge body 2 (2) is fixedly connected to the outer wall of the rotating sleeve 1 (3). Locking pins (5) are provided at both ends of the hinge shaft (23). A damping component is provided on the inner wall of the hinge shaft (23). The damping assembly includes a damping cylinder (6) and a piston rod (7). The outer wall of the damping cylinder (6) is fixedly connected to the inner wall of the hinge shaft (23). The outer wall of the piston rod (7) is slidably connected to the inner wall of the damping cylinder (6). A slide rod (8) is fixedly connected to the outer wall of the piston rod (7). A rotating tube (9) is slidably connected to the outer wall of the piston rod (7). One side of the outer wall of the rotating tube (9) is fixedly connected to the inner wall of the rotating sleeve (3). A guide hole (10) is opened on the outer wall of the rotating tube (9). The outer wall of the slide rod (8) is slidably connected to the inner wall of the guide hole (10).

2. The novel compact damping hinge according to claim 1, characterized in that: One end of the rotating tube (9) is fixedly connected to a torsion spring (11), the outer wall of the torsion spring (11) is fixedly connected to the inner wall of the hinge shaft (23), and one end of the torsion spring (11) is fixedly connected to a rotating block (12).

3. The novel compact damping hinge according to claim 2, characterized in that: The outer wall of the rotating block (12) is fixedly connected to the inner wall of the rotating sleeve (3), and a pressing rod (13) is fixedly connected to the outer wall of the rotating block (12).

4. The novel compact damping hinge according to claim 3, characterized in that: One end of the extrusion rod (13) is provided with a friction plate (14), and a groove (15) is provided on one side of the outer wall of the friction plate (14). One end of the extrusion rod (13) is slidably connected to the inner wall of the groove (15).

5. A novel compact damping hinge according to claim 1, characterized in that: The inner wall of the hinge shaft (23) is fixedly connected to a friction plate two (16), one side of the outer wall of the friction plate two (16) is located outside the friction plate one (14), and a connecting rod (17) is fixedly connected to one side of the outer wall of the friction plate two (16).

6. The novel compact damping hinge according to claim 1, characterized in that: The upper surfaces of hinge body one (1) and hinge body two (2) are fixedly connected to a fan-shaped guide rail (18), and a rotating plate (19) is slidably connected to the inner wall of the fan-shaped guide rail (18).

7. A novel compact damping hinge according to claim 6, characterized in that: A connecting block (21) is fixedly connected to the lower surface of the rotating plate (19), and a worm (22) is rotatably connected to the inner wall of the connecting block (21). A worm wheel (25) is fixedly connected to the upper surface of the first hinge (1) and the second hinge (2). The tooth end of the worm (22) meshes with the tooth end of the worm wheel (25).

8. A novel compact damping hinge according to claim 7, characterized in that: A buffer strip (20) is fixedly connected to the outer wall of the rotating plate (19), and an adjusting head (24) is fixedly connected to one end of the worm (22).

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