Hover damper overhanging door hinge

Abstract

The utility model provides a kind of hovering damping upturning door hinge, including shell, movable assembly, damping assembly, the front end of shell is provided with stretch component;Movable assembly block includes movable assembly block I and adjusting block, the lower end of movable assembly block I is connected with compression spring by connecting rod, the top of movable assembly block I and the abutment of the roller set on stretch component are abutted;Damping assembly includes hydraulic oil cylinder and movable adjusting rod, the top of movable adjusting rod and the oil cylinder rod of hydraulic oil cylinder are connected, the top of movable adjusting rod and the oil cylinder rod of hydraulic oil cylinder are connected.The utility model, by setting adjustable structure consisting of first adjusting bolt, second adjusting bolt, can adjust damping assembly and movable assembly according to cabinet door weight and use scene, realize the flexible adjustment of cabinet door opening maximum angle, satisfy the use demand under different scenes.

Description

Technical Field

[0001] This utility model relates to the field of cabinet door hinge technology, specifically a hovering damping upward flip door hinge. Background Technology

[0002] Currently, cabinet doors are generally categorized into sliding doors (sliding left and right), hinged doors (hinged on the side), and flip-up doors. Flip-up doors are connected to the cabinet body via hinges. Traditional hinges typically consist of a hinge cup fixed to the door body, a hinge seat fixed to the cabinet body, and a transmission component connecting the hinge cup and hinge seat. Since the door needs to remain open, a gas spring is commonly added to the transmission component. However, gas spring hinges have the following drawbacks in practical applications: they lack an upward-swinging and hovering opening / closing function; the use of gas pressure supports affects the smoothness of door opening and closing; and they can easily damage the structural strength of the door and cabinet. Furthermore, the pressure transmitted by the gas spring can easily cause breakage at the hinge joint, resulting in poor stability and reduced product lifespan. Utility Model Content

[0003] The purpose of this utility model is to provide a hovering damping lift-up door hinge to solve the problem mentioned in the background art that existing cabinet doors cannot be lifted up and hovered.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A hovering damping liftgate hinge includes:

[0006] The outer shell has an extension component at its front end. The front end of the extension component is fixedly connected to the rear end face of the fixing block. The extension component can extend and retract and adjust its angle as the cabinet door is opened and closed. When the cabinet door is opened, the fixing block pulls the extension component to gradually extend from the front end of the outer shell.

[0007] The movable block includes movable block I and an adjustment block. The adjustment block and the rod are integrally formed. The lower end of the movable block I is connected to a compression spring via a connecting rod. The other end of the compression spring is connected to the upper end face of the adjustment block. The top of the movable block I abuts against a roller provided on the abutment part of the extension assembly. The abutment part is fixedly connected to the end of the connecting rod and rotates with the fixed hinge point.

[0008] The damping assembly includes a hydraulic cylinder and a movable adjusting rod. The top of the movable adjusting rod is connected to the cylinder rod of the hydraulic cylinder. When the cabinet door is closed, the roller generates a downward thrust on the top of the movable block I as the extension assembly rotates, compressing the spring. The hinge point II between the connecting rod and the second cantilever abuts against the hydraulic cylinder, generating a damping force. This balances the damping force of the hydraulic cylinder with the elastic force generated by the deformation of the compression spring, thus achieving stable suspension of the cabinet door at any opening angle.

[0009] Preferably, the top of the rod is provided with an internal thread groove, and the threaded end of the first adjusting bolt is screwed into the internal thread groove at the top of the rod, forming a threaded engagement. The lower end face of the movable adjusting rod is provided with an internal thread groove, and the threaded end of the second adjusting bolt is screwed into the internal thread groove at the lower end face of the movable adjusting rod, forming a threaded engagement.

[0010] Preferably, both the first adjusting bolt and the rod are engaged in the first slot on the right side of the housing. The shape of the first slot is adapted to the outer periphery of the first adjusting bolt and the side structure of the rod, which serves to limit the movement of the first adjusting bolt. The first slot also provides space for the rod to slide during adjustment, thus guiding the sliding of the rod. When the first adjusting bolt is adjusted, rotating the first adjusting bolt causes the rod to move synchronously under the action of the threaded engagement. The rod also causes the adjusting block integrally formed with it to change position. After the first adjusting bolt is adjusted, the integral structure of the adjusting block and the rod remains fixed during the opening and closing of the cabinet door, and can only move when adjusted by the first adjusting bolt.

[0011] The second adjusting bolt and the movable adjusting rod are both engaged in the second slot on the right side inside the housing. The shape of the second slot is adapted to the outer periphery of the second adjusting bolt and the side structure of the movable adjusting rod. When the second adjusting bolt is adjusted, rotating the second adjusting bolt can drive the movable adjusting rod to rise and fall under the action of the threaded engagement, thereby changing the initial position of the hydraulic cylinder rod. The hydraulic cylinder rod remains fixed during the opening and closing of the cabinet door and can only move when adjusted by the second adjusting bolt.

[0012] Preferably, the extension component includes a slide groove, which is formed at the front end of the housing. A slip ring hinge point is slidably connected in the slide groove. The slip ring hinge point can slide flexibly along the length direction of the slide groove, and a first cantilever is hinged at the central pivot of the slip ring hinge point.

[0013] Preferably, the other end of the first cantilever away from the hinge point of the slip ring is rotatably connected to the hinge seat II provided at the rear end of the fixed block. A fixed hinge point is provided on the inner wall of the outer shell below the slide groove. A connecting rod is hinged at the fixed hinge point. The end of the connecting rod away from the fixed hinge point is hinged to the end position of the second cantilever through the hinge point II.

[0014] Preferably, the other end of the second cantilever away from the connecting rod is hinged to the hinge seat I provided at the front end of the fixed block, and the middle part of the connecting rod is hinged to the middle part of the first cantilever through hinge point I.

[0015] Preferably, the right side of the adjustment block has an integrally formed connecting part that protrudes towards the rod, the top structure of the connecting part is adapted to the bottom shape of the rod, and the connecting part is integrally formed with the rod.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model, by setting an adjustable structure composed of a first adjusting bolt and a second adjusting bolt, can adjust the damping component and movable block according to the weight of the cabinet door and the usage scenario, so as to flexibly adjust the maximum opening angle of the cabinet door and meet the usage needs in different scenarios.

[0018] This invention, by setting up a movable block and a damping component, causes the movable block I to compress the spring due to the thrust of the roller of the extension component. The extension component then resists the hydraulic cylinder to generate a damping force, so that the damping force of the hydraulic cylinder, the elastic force of the compression spring, and the weight of the cabinet door form a dynamic balance. At the same time, with the precise adjustment of the adjusting bolt, the cabinet door can be stably suspended at any opening angle, avoiding the problems of traditional hinges falling or getting stuck, and improving the ease of use. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This utility model Figure 1 Another perspective 3D illustration;

[0021] Figure 3 This utility model Figure 2 Another perspective 3D illustration;

[0022] Figure 4 This is a three-dimensional schematic diagram of the roller and moving block I of this utility model;

[0023] Figure 5 This is a three-dimensional schematic diagram of the movable block I, the adjusting block, and the damping component of this utility model;

[0024] Figure 6 This is a three-dimensional schematic diagram of the adjustment block and damping component of this utility model.

[0025] In the diagram: 1. Outer shell; 2. Slide groove; 3. Slip ring hinge point; 4. First cantilever; 5. Connecting rod; 6. Second cantilever; 7. Hinge point I; 8. Hinge point II; 9. Fixed block; 901. Hinge seat I; 902. Hinge seat II; 10. Fixed hinge point; 11. Roller; 1101. Abutment part; 12. Movable block I; 13. Connecting rod; 14. Compression spring; 15. Adjusting block; 1501. Connecting part; 16. Rod part; 17. Movable adjusting rod; 20. First adjusting bolt; 21. Second adjusting bolt; 22. Cylinder rod; 23. Hydraulic cylinder; 24. First slot; 25. Second slot. 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] Example:

[0028] Please see Figures 1 to 6 This utility model provides a technical solution:

[0029] A hovering damping liftgate hinge includes a housing 1, a movable block and a damping component, with each structure working together to achieve smooth opening and closing of the cabinet door and hovering at any angle.

[0030] The front end of the outer shell 1 is integrated with an extension component for driving the cabinet door to open. This extension component not only realizes the angle adjustment of the cabinet door, but also provides the triggering condition for the force transmission of the movable block.

[0031] The extension assembly includes a groove 2 formed at the front end of the outer casing 1, the groove 2 extending along the length of the outer casing 1, and a sliding ring hinge point 3 slidably connected within the groove. The sliding ring hinge point 3 is a circular retaining ring with an internal pivot, which is engaged within the groove 2 and can slide flexibly along the inner wall of the groove 2. A first cantilever 4 is hinged at its central pivot point. The other end of the first cantilever 4, away from the sliding ring hinge point 3, forms a rotatable connection with a hinge seat II 902 pre-set at the rear end of the fixing block 9 (e.g., ...). Figure 1 As shown in the figure, the front end of the fixing block 9 has a connection hole adapted to the installation of the cabinet door, and is fixed to the back of the cabinet door panel by screws and other fasteners.

[0032] Meanwhile, a fixed hinge point 10 is provided on the inner wall of the outer casing 1 below the slide groove 2 (e.g. Figure 1 As shown), a connecting rod 5 is hinged at the fixed hinge point 10. The end of the connecting rod 5 away from the fixed hinge point 10 is hinged to the end of the second cantilever 6 through hinge point II8, and the middle part of the connecting rod 5 is cross-hinged to the middle part of the first cantilever 4 through hinge point I7. The other end of the second cantilever 6 away from the connecting rod 5 is hinged to the hinge seat I901 at the front end of the fixed block 9, forming a multi-hinged linkage structure.

[0033] In this embodiment, when the cabinet door is opened, an external force drives the cabinet door to rotate outward, and the cabinet door drives the fixing block 9 to move synchronously. The fixing block 9 pulls the second cantilever 6 and the first cantilever 4 through the hinge seat I 901 and hinge seat II 902 respectively, so that the multi-hinged structure unfolds. At the same time, the first cantilever 4 drives the slip ring hinge point 3 to slide along the slide groove 2. When the cabinet door is closed, the structure folds synchronously, and the slip ring hinge point 3 resets along the slide groove 2, ensuring the smoothness of the cabinet door opening and closing process.

[0034] The movable block is located inside the housing 1 and is used to convert the movement of the extension component into the force of the damping component. It includes movable block I12 and adjustment block 15.

[0035] The top of the movable block I12 abuts against the roller 11 on the abutment part 1101 of the connecting rod 5 in the extension assembly (as shown). Figure 4 As shown, the top of the movable block I12 has an umbrella-shaped inclined slope, which facilitates its cooperation with the roller 11. The roller 11 can reduce the friction between the movable block I12 and the connecting rod 5, ensuring smooth transmission. The lower end of the movable block I12 is vertically fixed with a connecting rod 13. The compression spring 14 is sleeved on the connecting rod 13. The lower end face of the compression spring 14 is fixed to the upper end face of the adjusting block 15. The number of compression springs 14 is not fixed and can be adjusted according to the weight of the cabinet door and the requirements.

[0036] In this embodiment, when the extension assembly unfolds as the cabinet door opens, the abutment part 1101 of the connecting rod 5 swings with the connecting rod 5, and its roller 11 generates a downward thrust on the top of the movable block I 12, pushing the movable block I 12 down along the preset guide structure inside the outer shell 1; during the downward movement of the movable block I 12, the connecting rod 13 squeezes the compression spring 14, causing the compression spring 14 to deform and store elastic potential energy, while the compression spring 14 transmits the downward force to the adjustment block 15.

[0037] In addition, the right side of the adjustment block 15 has an integrally formed connecting portion 1501 that protrudes toward the damping assembly. The adjustment block 15, the connecting portion 1501 and the rod portion 16 are integrally formed.

[0038] It should be noted that the right side of the adjusting block 15 has a connecting part 1501 that protrudes towards the damping component (e.g., Figure 6 As shown in the figure, this results in a local structural protrusion, while most of the left side is flat. This asymmetrical structure is prone to lateral tilting or warping due to the shift of the center of gravity during the stress process. However, the left side of the adjustment block 15 is connected to multiple compression springs 14 through the connecting rod 13, which can buffer local stress through its own elasticity. At the same time, the multiple compression springs 14 are evenly distributed along the left side of the adjustment block 15, which can form a balanced upward support force, forming a mechanical balance with the downward force transmitted by the right connecting part 1501, avoiding jamming or transmission failure caused by structural asymmetry, and further ensuring the stability of the component's force transmission.

[0039] The damping component is the core structure for enabling the cabinet door to stop arbitrarily. It is located inside the outer shell 1 and includes a hydraulic cylinder 23, a movable adjusting rod 17, and a corresponding adjusting bolt. It achieves the hovering function by generating a damping force that balances the elastic force of the compression spring 14.

[0040] The top of the movable adjusting rod 17 is fixedly connected to the cylinder rod 22 of the hydraulic cylinder 23, and the cylinder body of the hydraulic cylinder 23 is fixed on the inner wall of the outer casing 1. When the hydraulic cylinder 23 is pressed, the cylinder rod 22 extends and retracts along the cylinder body of the hydraulic cylinder 23, thereby obstructing the flow of hydraulic oil or damping medium inside the hydraulic cylinder 23 and generating a stable damping force.

[0041] When the cabinet door tends to close, the hinge point II8 of the connecting rod 5 and the second cantilever 6 abuts against the top of the hydraulic cylinder 23. At this time, the movable adjusting rod 17 has been fixed in position by adjustment and will no longer move with the opening and closing of the cabinet door. Only the hydraulic cylinder 23 slides vertically downward along the cylinder rod 22 under the abutting force of the hinge point II8. During the compression process of the hydraulic cylinder 23, the flow of the damping medium inside the hydraulic cylinder 23, such as hydraulic oil, is obstructed, thereby generating a stable damping force, which can counteract the weight and motion inertia of the cabinet door itself. When the damping force is balanced with the weight of the cabinet door and the elastic force of the compression spring 14, the cabinet door can be stably stopped at the current opening angle, realizing the arbitrary stop function.

[0042] The adjustment function of the movable adjustment rod 17 is reflected in changing the initial position of the hydraulic cylinder rod 22: for example, the higher the fixed height of the movable adjustment rod 17 inside the outer casing 1, the longer the initial extension of the hydraulic cylinder rod 22 out of the hydraulic cylinder 23 body, the smaller the initial compressible stroke of the hydraulic cylinder rod 22 during the opening and closing of the cabinet door, and the greater the initial damping force; conversely, the lower the fixed height of the movable adjustment rod 17, the smaller the initial extension of the hydraulic cylinder rod 22, and the smaller the initial damping force, thus adapting to the damping requirements of cabinet doors of different weights.

[0043] The movable block and damping assembly also have an adjustable structure. The top of the rod 16 has an internal threaded groove, and the threaded end of the first adjusting bolt 20 is screwed into the internal threaded groove to form a threaded engagement. The first adjusting bolt 20 and the rod 16 are both engaged in the first slot 24 on the right side of the outer casing 1. The shape of the first slot 24 is adapted to the outer periphery of the first adjusting bolt 20 and the side structure of the rod 16, which not only provides radial limit for both to prevent displacement during adjustment, but also reserves space in the slot for the rod 16 to slide during adjustment. When the first adjusting bolt 20 is rotated, the rod 16 moves synchronously through the threaded engagement, thereby changing the position of the integrally formed adjusting block 15. After the first adjusting bolt 20 is adjusted, the integral structure of the adjusting block 15 and the rod 16 remains fixed during the opening and closing of the cabinet door, and can only move when adjusted by the first adjusting bolt 20.

[0044] The lower end face of the movable adjusting rod 17 has an internal threaded groove, and the threaded end of the second adjusting bolt 21 is screwed into the internal threaded groove to form a threaded engagement. Both the second adjusting bolt 21 and the movable adjusting rod 17 are engaged in the second slot 25 on the right side inside the outer casing 1. The shape of the second slot 25 is adapted to the outer periphery of the second adjusting bolt 21 and the side structure of the movable adjusting rod 17. Its function is the same as that of the first slot 24, which not only achieves radial limiting but also reserves space for the lifting and lowering of the movable adjusting rod 17. When the second adjusting bolt 21 is rotated, the movable adjusting rod 17 is driven to rise and fall through the threaded engagement, thereby changing the initial position of the cylinder rod 22 of the hydraulic cylinder 23. After the second adjusting bolt 21 is adjusted, the movable adjusting rod 17 and the cylinder rod 22 remain fixed during the opening and closing of the cabinet door and can only move when adjusted by the second adjusting bolt 21.

[0045] It should be noted that the outer shell 1 adopts a split symmetrical design, consisting of two shell halves of the same shape. The inner edges of the two shell halves are fastened together by bolts to form the complete outer shell 1. When the two shell halves 1 are joined together by bolts, the semi-groove structures on both sides precisely align, forming the complete first slot 24 and second slot 25. This facilitates the assembly of the damping components. The rod 16, movable adjusting rod 17, and adjusting bolts can be pre-placed in the semi-groove of one shell halves before the other shell halves are closed and fixed, reducing installation difficulty. At the same time, the symmetrically joined slots can form a wrap-around limit on the adjusting bolts and sliding rods from both sides. Compared with the single-sided slots of a single shell halves, the limiting accuracy is higher, which can effectively prevent radial offset when the adjusting bolts are turned and lateral tilt when the sliding rods slide, further ensuring the stability of the damping force adjustment and the smoothness of the sliding rod movement.

[0046] When adjusting the adjusting bolts, turning the first adjusting bolt 20 clockwise moves the rod 16 through the threaded connection, thereby adjusting the movable range of the compression spring 14 and controlling the compression spring 14. The thrust is transmitted to the rod 16 through the first adjusting bolt 20, and then acts on the adjusting block 15 through the connecting part 1501 integrally formed with the adjusting block 15, thereby changing the initial compression degree and maximum deformation range of the compression spring 14. Turning it counterclockwise adjusts in the opposite direction. The adjustment logic of the second adjusting bolt 21 is the same as that of the first adjusting bolt 20. Turning the second adjusting bolt 21 drives the movable adjusting rod 17 to rise and fall through the threaded connection, changing the initial position of the cylinder rod 22 of the hydraulic cylinder 23, thereby adjusting the initial damping force of the hydraulic cylinder 23. Turning it clockwise raises the movable adjusting rod 17, increases the initial extension of the cylinder rod 22, and increases the initial damping force. Turning it counterclockwise lowers the movable adjusting rod 17, decreases the initial extension of the cylinder rod 22, and decreases the initial damping force. The combination of these two components allows the hinge to adapt to the hovering requirements of cabinet doors of varying weights, ensuring the stable operation of the arbitrary stop function in various scenarios. If the cabinet door automatically closes downwards after being opened to a certain angle (easily sagging), it indicates insufficient damping force. The adjusting bolt should be turned clockwise to increase the damping force by compressing the spring. If the cabinet door is difficult to open, or easily bounces upwards after stopping at a certain angle, it indicates excessive damping force. The adjusting bolt should be turned counterclockwise to reduce the spring compression and thus lower the damping force. After adjustment, repeatedly open and close the cabinet door to test the stability of the hovering at different angles until the ideal state is achieved.

[0047] In this embodiment, through the coordinated adjustment of the first adjusting bolt 20 and the second adjusting bolt 21, the balance threshold of damping force and elastic force can be precisely matched according to the weight of the cabinet door and the usage scenario, so that the cabinet door can achieve arbitrary position suspension control within the opening angle of 0°-90° (or a larger range); when the cabinet door is opened to the target angle, the adjusted damping component can quickly form a dynamic balance with the elastic force of the compression spring 14 and the weight of the cabinet door, so that the cabinet door can be smoothly stationary at this angle, effectively avoiding the "dropping" problem caused by insufficient damping of traditional hinges or the "stuttering" problem caused by excessive damping, realizing flexible adjustment of the cabinet door opening angle, and ensuring that the cabinet door opening and closing is smooth without any sense of jerking through the precise matching of damping force and elastic force, thus improving the operating experience.

[0048] All other parts of this utility model not described herein are the same as existing technologies, or are known technologies, or can be implemented using existing technologies, and will not be described in detail here.

[0049] 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 hovering damping upward-opening door hinge, characterized in that, include: The outer shell (1) has an extension component at its front end. The front end of the extension component is fixedly connected to the rear end face of the fixing block (9). The extension component can extend and retract and adjust its angle as the cabinet door is opened and closed. When the cabinet door is opened, the fixing block (9) pulls the extension component to gradually extend from the front end of the outer shell (1). The movable block includes movable block I (12) and adjustment block (15). The adjustment block (15) and the rod (16) are integrally formed. The lower end of the movable block I (12) is connected to a compression spring (14) via a connecting rod (13). The other end of the compression spring (14) is connected to the upper end face of the adjustment block (15). The top of the movable block I (12) abuts against the roller (11) provided on the abutting part (1101) of the extension assembly. The abutting part (1101) is fixedly connected to the end of the connecting rod (5) and rotates with the fixed hinge point (10). The damping assembly includes a hydraulic cylinder (23) and a movable adjusting rod (17). The top of the movable adjusting rod (17) is connected to the cylinder rod (22) of the hydraulic cylinder (23). When the cabinet door is closed, the roller (11) generates a downward thrust on the top of the movable block I (12) as the extension assembly rotates, squeezing the compression spring (14). The hinge point II (8) of the connecting rod (5) and the second cantilever (6) abuts against the hydraulic cylinder (23) to generate a damping force, so that the damping force of the hydraulic cylinder (23) and the elastic force generated by the deformation of the compression spring (14) are balanced, so that the cabinet door can be stably suspended at any opening angle.

2. The hovering damping upward-opening door hinge according to claim 1, characterized in that: It also includes a first adjusting bolt (20) and a second adjusting bolt (21); the top of the rod (16) is provided with an internal thread groove, the threaded end of the first adjusting bolt (20) is screwed into the internal thread groove at the top of the rod (16), and the two form a threaded fit; the lower end face of the movable adjusting rod (17) is provided with an internal thread groove, the threaded end of the second adjusting bolt (21) is screwed into the internal thread groove at the lower end face of the movable adjusting rod (17), and the two form a threaded fit.

3. A hovering damping upward-opening door hinge according to claim 2, characterized in that: The first adjusting bolt (20) and the rod (16) are both engaged in the first slot (24) on the right side of the outer shell (1). The shape of the first slot (24) is adapted to the outer periphery of the first adjusting bolt (20) and the side structure of the rod (16). The first slot (24) leaves space for the rod (16) to slide when adjusting. When the first adjusting bolt (20) is adjusted, the first adjusting bolt (20) is rotated, and the rod (16) is driven to move synchronously under the action of the thread engagement. The rod (16) drives the adjusting block (15) integrally formed with it to change position. After the first adjusting bolt (20) is adjusted, the integral structure of the adjusting block (15) and the rod (16) remains fixed during the opening and closing of the cabinet door. It can only move when adjusted by the first adjusting bolt (20).

4. A hovering damping upward-opening door hinge according to claim 2, characterized in that: The second adjusting bolt (21) and the movable adjusting rod (17) are both engaged in the second slot (25) on the right side inside the outer casing (1). The shape of the second slot (25) is adapted to the outer periphery of the second adjusting bolt (21) and the side structure of the movable adjusting rod (17). When the second adjusting bolt (21) is adjusted, rotating the second adjusting bolt (21) can drive the movable adjusting rod (17) to rise and fall under the action of the threaded engagement, thereby changing the initial position of the cylinder rod (22) of the hydraulic cylinder (23). The cylinder rod (22) remains fixed during the opening and closing of the cabinet door and can only move when adjusted by the second adjusting bolt (21).

5. A hovering damping upward-opening door hinge according to claim 1, characterized in that: The extension assembly includes a slide (2), which is opened at the front end of the housing (1). A sliding ring hinge point (3) is slidably connected in the slide (2). The sliding ring hinge point (3) can slide flexibly along the length direction of the slide (2), and a first cantilever (4) is hinged at the central pivot of the sliding ring hinge point (3).

6. A hovering damping upward-opening door hinge according to claim 5, characterized in that: The other end of the first cantilever (4) away from the sliding ring hinge point (3) is rotatably connected to the hinge seat II (902) provided at the rear end of the fixed block (9). A fixed hinge point (10) is provided on the inner wall of the outer shell (1) below the slide groove (2). A connecting rod (5) is hinged at the fixed hinge point (10). The end of the connecting rod (5) away from the fixed hinge point (10) is hinged to the end position of the second cantilever (6) through the hinge point II (8).

7. A hovering damping upward-opening door hinge according to claim 6, characterized in that: The other end of the second cantilever (6) away from the connecting rod (5) is hinged to the hinge seat I (901) provided at the front end of the fixed block (9), and the middle part of the connecting rod (5) is hinged to the middle part of the first cantilever (4) through the hinge point I (7).

8. A hovering damping upward-opening door hinge according to claim 1, characterized in that: The right side of the adjustment block (15) is integrally formed with a connecting part (1501) that protrudes towards the rod (16). The top structure of the connecting part (1501) is adapted to the bottom shape of the rod (16), and the connecting part (1501) and the rod (16) are integrally formed.

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