Hinge and device

Abstract

The embodiment of the application provides a hinge and equipment, comprising: a hinge body, comprising an upper hinge plate and a lower hinge plate, the upper hinge plate and the lower hinge plate are rotationally connected through a first rotation axis; the upper hinge plate is provided with a second rotation axis, the circumferential outer wall of the second rotation axis is provided with a limiting convex part, the limiting convex part protrudes outward along the radial direction of the second rotation axis; the top of the supporting rod is connected with a supporting bush, the supporting bush is sleeved on the outer side of the second rotation axis; a supporting base is located on the lower hinge plate, a supporting pad is located in the middle part of the supporting base, the supporting pad is provided with a slot, the bottom of the supporting rod penetrates through the slot; one end of the spring is sleeved on the supporting rod and abuts against the supporting rod, and the other end is connected with the supporting pad. In the process of relative rotation of the supporting bush and the second rotation axis, a greater normal force is generated through the contact between the supporting bush and the limiting convex part, and a greater torque is provided for the equipment; at the same time, according to the position setting of the limiting convex part in the circumferential direction of the second rotation axis, the hovering angle is reasonably set, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of hinge technology, and more specifically, to a hinge and device. Background Technology

[0002] With global shipping prices continuing to rise, the packing volume of goods has become increasingly important. Currently, in the related technologies of various refrigeration equipment manufacturers, the hinges of refrigerated equipment are very thick and protrude from the outside of the refrigerated body, resulting in a large outer packaging size for the product. This reduces the packing volume of the product and consequently increases the shipping cost.

[0003] As a key connecting component that enables doors to open and close, the performance of hinges directly affects ease of use, safety, and user experience. With consumers increasingly demanding features in home furnishing products such as quiet operation, smooth movement, automatic rebound, and soft-close, traditional rigid hinges are no longer sufficient to meet the application requirements of the high-end market.

[0004] Existing technologies have disclosed various hinge structures with elastic mechanisms, which integrate springs, dampers, and other components within the hinge to achieve automatic opening, slow closing, or position holding functions of the door. Traditional hinges often employ rigid connections or point-contact structures for their elastic mechanisms. When there are installation deviations in the door or deformation due to long-term use, stress concentration can easily occur, leading to jamming of support components, abnormal noise, and affecting the opening and closing feel. Existing hinges mostly use rigid fixing in their connection structure, requiring extremely high alignment accuracy between the upper and lower hinge plates. In actual assembly, even minor dimensional deviations or unevenness of the cabinet can cause the hinge to move poorly, or even damage the internal springs or bearing structures.

[0005] Thin hinges can reduce outer packaging size and increase packing volume, but they fail to provide satisfactory performance. Users experience poor door-opening stability and low satisfaction. The industry has yet to find a good solution. Utility Model Content

[0006] This application provides a hinge and device that solves the problems of poor hovering effect and small hovering angle of existing hinges.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] A hinge, comprising:

[0009] The hinge body includes an upper hinge plate and a lower hinge plate, which are rotatably connected via a first rotating shaft; the upper hinge plate is provided with a second rotating shaft, and the outer circumferential wall of the second rotating shaft is provided with a limiting protrusion, which protrudes outward along the radial direction of the second rotating shaft;

[0010] The elastic device includes a support bearing, a support rod, a support base, a spring, and a support pad. The top of the support rod is connected to the support bearing, which is fitted onto the circumferential outer wall of the second rotating shaft and can cooperate with the limiting protrusion. The support base is located on the lower hinge plate, and the support pad is located in the middle of the support base. The support pad has a slot, and the bottom of the support rod passes through the slot. One end of the spring is fitted onto and abuts against the support rod, and the other end is connected to the support pad.

[0011] Optionally, the support base has a pad mounting hole in the middle and the bottom surfaces on both sides are provided with a downwardly convex second arc-shaped surface, and the support pad is located in the pad mounting hole;

[0012] The lower hinge plate has support bosses on both sides, and the top surface of the support boss is a first arc-shaped surface that is recessed downwards; the support base is attached to the support boss, and the second arc-shaped surface cooperates with the first arc-shaped surface.

[0013] Optionally, the support base includes two parallel support rods, with their ends fixedly connected and the bottom provided with the second arc-shaped surface; the middle of the two support rods bends outward to form the pad mounting hole.

[0014] Optionally, the support pad includes a limiting ring, with a first limiting post on each side of one end of the limiting ring and a second limiting post on each side of the other end of the limiting ring;

[0015] The outer walls of the two first limiting posts are sleeved with the inner ring of the spring;

[0016] The outer walls of the two second limiting posts are respectively provided with a first conical surface and a second conical surface, forming a narrow opening that is inserted into the inner wall of the pad mounting hole;

[0017] The gap between the two first limiting posts and the gap between the two second limiting posts constitute the slot.

[0018] Optionally, a limiting plate is provided in the middle of the support rod, and the spring is sleeved on the support rod. One end of the spring abuts against the limiting plate, and the other end abuts against the limiting ring.

[0019] Optionally, there are several limiting protrusions, each of which is evenly distributed on the radial section of the second rotating shaft and extends along the axial direction of the second rotating shaft.

[0020] Optionally, the limiting protrusion has a circular arc or elliptical arc cross-section.

[0021] Optionally, the second rotating shaft includes a rotating shaft body and connecting portions at both ends of the rotating shaft body. The connecting portions are cylindrical structures that cooperate with the upper hinge plate. The circumferential outer wall of the rotating shaft body is provided with the limiting protrusion and is connected to the support bearing.

[0022] Optionally, the lower hinge plate includes a mounting base and side plates disposed at both ends of the mounting base;

[0023] Both side plates are provided with arc-shaped limiting holes, and the outer end of the connecting part is inserted into the arc-shaped limiting holes.

[0024] This application also provides a device including the hinge described in any of the above embodiments.

[0025] This application provides a hinge comprising: a hinge body including an upper hinge plate and a lower hinge plate, the upper hinge plate and the lower hinge plate being rotatably connected via a first rotating shaft; the upper hinge plate having a second rotating shaft, the outer circumferential wall of the second rotating shaft having a limiting protrusion, the limiting protrusion protruding radially outward along the second rotating shaft; a spring device including a support bearing, a support rod, a support base, a spring, and a support pad; the top of the support rod is connected to the support bearing, the support bearing being fitted onto the outer side of the second rotating shaft; the support base is located on the lower hinge plate, the support pad is located in the middle of the support base, the support pad has a slot, the bottom of the support rod passing through the slot; one end of the spring is fitted onto and abuts against the support rod, and the other end is connected to the support pad.

[0026] The hinge provided in this application embodiment has the following technical advantages compared to the prior art:

[0027] In this application, the hinge body includes an upper hinge plate and a lower hinge plate that are rotatably connected. The upper hinge plate is provided with a second rotating shaft, and the circumferential outer wall of the second rotating shaft is provided with a limiting protrusion. The top of the support rod is provided with a support bearing, which is fitted onto the circumferential outer wall of the second rotating shaft and cooperates with the limiting protrusion. Thus, during the relative rotation of the support bearing and the second rotating shaft, a greater normal force is generated through the contact between the support bearing and the limiting protrusion, providing greater torque to the device. At the same time, the hovering angle is reasonably set according to the circumferential position of the limiting protrusion on the second rotating shaft, improving the user experience. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0029] Figure 1 This is a schematic diagram of the structure of a device provided in an embodiment of this application;

[0030] Figure 2 This is a schematic diagram of the hinge structure provided in an embodiment of this application;

[0031] Figure 3 for Figure 2 Front view structural diagram;

[0032] Figure 4 for Figure 3 A schematic diagram of the side view structure;

[0033] Figure 5 This is a schematic diagram of the structure of the second rotating shaft provided in an embodiment of this application;

[0034] Figure 6 This is a schematic diagram of a second rotation axis provided in another embodiment of this application, wherein (a) is a front view of the second rotation axis; and (b) is a cross-sectional view along line AA in (a).

[0035] Figure 7 The following is a schematic diagram of the structure of the support rod provided in the embodiment of this application; wherein, (a) is a front view of the support rod; and (b) is a cross-sectional view along direction AA in (a).

[0036] Figure 8 The following is a schematic diagram of the structure of the support pad provided in the embodiment of this application; wherein, (a) is a front view of the support pad; and (b) is an isometric view of the support pad.

[0037] The following labels are shown in the attached diagram:

[0038] 1. Hinge; 2. Elastic device; 3. Equipment;

[0039] Upper hinge plate 11, lower hinge plate 12, first rotating shaft 13, second rotating shaft 14;

[0040] Mounting base 121, side plate 122, support boss 123, arc-shaped limiting hole 124;

[0041] Support bearing 21, support rod 22, support base 23, spring 24, support pad 25;

[0042] Slot 251, limiting ring 252, first limiting post 253, second limiting post 254, first conical surface 2541, second conical surface 2542;

[0043] Limit plate 221;

[0044] Rotating shaft body 141, connecting part 142, limiting protrusion 143. Detailed Implementation

[0045] This utility model discloses a hinge and device that solves the problems of poor hovering effect and small hovering angle of existing hinges.

[0046] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0047] Please see Figure 1-8 , Figure 1 This is a schematic diagram of the structure of a device provided in an embodiment of this application; Figure 2 This is a schematic diagram of the hinge structure provided in an embodiment of this application; Figure 3 for Figure 2 Front view structural diagram; Figure 4 for Figure 3 A schematic diagram of the side view structure; Figure 5 This is a schematic diagram of the structure of the second rotating shaft provided in an embodiment of this application;

[0048] Figure 6 This is a schematic diagram of a second rotation axis provided in another embodiment of this application, wherein (a) is a front view of the second rotation axis; and (b) is a cross-sectional view along line AA in (a). Figure 7 The following is a schematic diagram of the structure of the support rod provided in the embodiment of this application; wherein, (a) is a front view of the support rod; and (b) is a cross-sectional view along direction AA in (a). Figure 8 The following is a schematic diagram of the structure of the support pad provided in the embodiment of this application; wherein, (a) is a front view of the support pad; and (b) is an isometric view of the support pad.

[0049] In one specific embodiment, the hinge 1 provided in this application includes a hinge 1 body and an elastic device 2, the elastic device 2 being connected to the hinge body; wherein, the hinge 1 body includes an upper hinge plate 11 and a lower hinge plate 12, a first rotating shaft 13 is provided between the upper hinge plate 11 and the lower hinge plate 12, and the two are rotatably connected by the first rotating shaft 13; the first rotating shaft 13 is preferably disposed on the lower hinge plate 12, and the upper hinge plate 11 is fitted onto the first rotating shaft 13, and is capable of rotating around the first rotating shaft 13. The upper hinge plate 11 is provided with a second rotating shaft 14, and the circumferential outer wall of the second rotating shaft 14 is provided with a limiting protrusion 143, the limiting protrusion 143 extending axially along the second rotating shaft 14 and protruding radially outward along the second rotating shaft 14; the limiting protrusion 143 and the second rotating shaft 14 are preferably integrally disposed to simplify the device structure and facilitate production and processing.

[0050] The first rotating shaft 13 connects the upper and lower hinge plates 12, providing the main rotational degree of freedom, and is usually a pin or rivet structure. The second rotating shaft 14 is set on the upper hinge plate 11 and is parallel to the first rotating shaft 13. It serves as the guide shaft of the elastic device 2. A limiting protrusion 143 is provided on the outer wall of the second rotating shaft 14. The limiting protrusion 143 can be an annular boss, multiple discrete protrusions, or spiral ribs. It cooperates with the support bearing 21 to achieve angular limiting. It provides staged resistance or positioning sense during rotation to prevent the support bearing 21 from slipping excessively.

[0051] The elastic device 2 includes a support bearing 21, a support rod 22, a support base 23, a spring 24, and a support pad 25. The top of the support rod 22 is connected to the support bearing 21, which is fitted onto the circumferential outer wall of the second rotating shaft 14 and can cooperate with the limiting protrusion 143. The support base 23 is located on the lower hinge plate 12, and the support pad 25 is located in the middle of the support base 23. The support pad 25 has a slot 251, and the bottom of the support rod 22 passes through the slot 251. One end of the spring 24 is fitted onto and abuts against the support rod 22, and the other end is connected to the support pad 25.

[0052] The top of the support rod 22 is connected to a support bearing 21, which is preferably an arc-shaped, open structure. The support bearing 21 rotates around the second rotating axis 14, specifically with its inner wall rolling in contact with the second rotating axis 14, generating force through rolling friction. The bottom of the support bearing 21 is connected to the support rod 22 and forms a mating relationship with the limiting protrusion 143. When the equipment is turned on, the support bearing 21 is pushed to rotate along the second rotating axis 14. When it rotates to engage with the limiting protrusion 143, it generates resistance, achieving positioning or locking. When the support bearing 21 rotates relative to the second rotating axis 14 to contact the limiting protrusion 143, the normal force increases as the rolling friction between the two changes to static friction, providing greater torque to the equipment, optimizing the hovering effect, and making its hovering more stable. The support base 23 is located on the lower hinge plate 12, preferably below the lower hinge plate 12, supporting the entire elastic device 2 and providing an installation reference. The support pad 25 is located in the middle of the support base 23. The support pad 25 has a slot 251 for the support rod 22 to pass through. The slot 251 can be rectangular, circular or other structures, used to limit the stroke of the support rod 22. One end of the spring 24 is fitted and abuts against the support rod 22, such as by a slot or step for positioning, and the other end is connected to the support pad 25, providing compression or tension elasticity; it stores energy when the equipment is turned on, and after release, it helps the door to automatically close or remain open, buffering impact and extending service life.

[0053] The specific working process is as follows: Initially, the door is in the closed state, and the spring 24 is in the pre-compressed state. When the door opens, the upper hinge plate 11 rotates with the door body, and the second rotating shaft 14 drives the support bearing 21 to move outward. The support rod 22 pushes the spring 24 to further contract. When the support bearing 21 passes the limiting protrusion 143, a skipping sensation is generated, achieving intermediate positioning, such as a 60° pause. The door continues to open to its maximum angle, at which point the spring 24 has maximum stored energy. When the door closes, after the external force is released, the spring 24 releases energy, pushing the support rod 22 upward, causing the support bearing 21 to return to its original position, assisting the door in closing. Through the cooperation of the limiting protrusion 143 and the support bearing 21, a "two-stage stop" or a "three-stage stop" can be achieved.

[0054] The aforementioned hinge 1 can be applied to cabinet doors, wardrobe doors, refrigerator doors, or washing machine lids, and its usage scenarios can be set as needed, all of which are within the protection scope of this application.

[0055] In one optional embodiment, there are several limiting protrusions 143, each of which is evenly distributed on the radial section of the second rotating shaft 14 and extends along the axial direction of the second rotating shaft 14.

[0056] The limiting protrusions 143 are numerous, thereby achieving multi-point force distribution and improving stability. The limiting protrusions 143 are preferably arranged at equal angles in the circumferential direction; for example, when three are provided, one is spaced 120° apart, ensuring balanced force distribution and enabling multi-stage hovering. The limiting protrusions 143 are strip-shaped or columnar along the length of the second rotation axis 14; their multi-point force distribution can disperse the pressure on the limiting bearing, preventing excessive wear at a single point and extending service life. The limiting protrusions 143 are evenly distributed in the radial cross-section, that is, within the cross-section perpendicular to the second rotation axis 14, each protrusion is arranged at equal angles; for example, three limiting protrusions 143 are distributed at 120° intervals to ensure rotational symmetry. The limiting protrusions 143 are preferably elongated strip-shaped or prismatic in shape.

[0057] Specifically, the support bearing 21 is located on the inner end of the second rotating shaft 14, and the spring 24 is pre-compressed. The support bearing 21 slides outward along the limiting protrusion 143, and the spring 24 is gradually compressed, resulting in smooth and unobstructed movement. When the support bearing 21 rotates relative to the second rotating shaft 14 until it contacts the first limiting protrusion 143, it achieves positioning at a positioning angle of 60°. With continued force application, the support bearing 21 passes the first limiting protrusion 143 and reaches the fully open position, where it is positioned again. The spring 24 releases energy, pushing the support bearing 21 back to its original position. The aforementioned multiple limiting protrusions 143 provide stable stopping points, enabling two-stage or three-stage stops. Various damping curves can be achieved by using support bearings 21 of different shapes.

[0058] In one alternative embodiment, the limiting protrusion 143 has a circular arc or elliptical arc cross-section. This design allows the limiting protrusion 143 to contact the support bearing 21, providing friction while adjusting the contact stiffness and guiding characteristics. It also facilitates a smooth surface transition, reduces jamming, and prevents sharp edges from scratching the inner wall of the support bearing 21. Furthermore, by adjusting the arc radius or elliptical eccentricity, the initial sliding force, positioning feel, and rebound smoothness can be controlled to adapt to the needs of doors of different weights.

[0059] In one optional embodiment, the support base 23 has a pad mounting hole in the middle and a second arc-shaped surface protruding downward on the bottom surface on both sides. The support base 23 overlaps the support boss 123. The lower hinge plate 12 has support bosses 123 on both sides. The top surface of the support boss 123 is a first arc-shaped surface that is recessed downward. The second arc-shaped surface cooperates with the first arc-shaped surface.

[0060] The pad mounting hole is located in the middle of the support base 23 to avoid the structure below, such as the extension of the support rod 22. The second arc-shaped surface is set on the bottom surface of both sides of the support base 23, serving as a fulcrum to cooperate with the concave surface of the lower hinge plate 12, allowing the support base 23 to swing or tilt slightly within a certain range. The first arc-shaped surface is set on the top surface of the support boss 123 to accommodate the second arc-shaped surface, forming a local spherical pair or universal joint connection to achieve angle self-adaptation. The first arc-shaped surface is such as a U-shape or a hemispherical socket. The support base 23 overlaps the support boss 123 and can be detached or floated. Specifically, the support base 23 overlaps the first arc-shaped surface of the lower hinge plate 12 through the second arc-shaped surfaces on both sides. The pad mounting hole in the middle is used to install the support pad 25. When the elastic device 2 is working, the support rod 22 moves up and down under force. Due to possible installation deviations or deformations of the door body, the support base 23 may tilt or deflect slightly. The convex arc surface rolls or slides slightly within the concave arc surface to achieve angle compensation and avoid stress concentration or jamming. When hinge 1 is subjected to vibration or impact, the arc-shaped mating structure absorbs part of the energy, providing buffering and shock absorption, and protecting the internal parts of the elastic device 2; the arc-shaped mating allows the support base 23 to swing slightly, adapting to installation errors or door deformation, reducing stress concentration caused by rigid connections, extending service life, and avoiding jamming or abnormal noise caused by off-center loading.

[0061] In one optional embodiment, the support base 23 includes two parallel support rods 22 bodies, with the two ends of the two support rods 22 bodies fixedly connected, and a second arc-shaped surface provided at the bottom; the middle part of the two support rods 22 bodies bends outward and protrudes to form a pad mounting hole.

[0062] The support base 23 includes two parallel support rods 22, which are arranged like parallel strips to form the main load-bearing frame. The two ends of the two support rods 22 are integrally formed and connected to form a stable frame. The second arc-shaped surface at the bottom is located on the bottom surface of the end of the rod and is a downward convex arc shape. It cooperates with the first arc-shaped surface of the lower hinge plate 12 to achieve flexible overlap. The middle part of the support rod 22 bends and protrudes outward away from each other to form a pad mounting hole for installing the support pad 25.

[0063] In an optional embodiment, the support pad 25 includes a limiting ring 252, with a first limiting post 253 on both sides of one end of the limiting ring 252 and a second limiting post 254 on both sides of the other end of the limiting ring 252.

[0064] The outer walls of the two first limiting posts 253 are sleeved with the inner ring of the spring 24;

[0065] The outer walls of the two second limiting posts 254 are respectively provided with a first conical surface 2541 and a second conical surface 2542, forming a narrow opening that is inserted into the inner wall of the pad mounting hole;

[0066] The gap between the two first limiting posts 253 and the gap between the two second limiting posts 254 constitute the slot 251.

[0067] The limiting ring 252 can be a circular ring, a square ring, or an irregularly shaped ring, serving as the main skeleton of the supporting pad 25. First and second limiting posts 254 extend from its two ends respectively. The first limiting post 253 is located on both sides of one end of the limiting ring 252, symmetrically distributed, with a smooth outer wall and a diameter slightly smaller than the inner diameter of the spring 24, serving as a positioning axis for the spring 24 to prevent it from shifting. The second limiting post 254 is symmetrically distributed on both sides of the other end of the limiting ring 252. The outer wall has a first conical surface 2541 and a second conical surface 2542, with the conical surfaces extending from the root to the end. The slot gradually narrows, with two conical surfaces facing each other to form an inverted V-shaped opening for easy insertion into the pad mounting hole. During insertion, the conical surfaces guide the insertion, and once in place, the narrow opening expands, with the outer wall tightly fitting against the hole wall, enabling rapid assembly. The slot 251 consists of a transverse gap between two pairs of limiting posts, including the gap between the first limiting posts 253 and the gap between the second limiting posts 254. This gap forms a longitudinal through-slot, through which the support rod 22 passes for guidance. Preferably, the slot width of the slot 251 is slightly larger than the diameter of the support rod 22, allowing for slight oscillation. The inner ring of the spring 24 is fitted onto the outer wall of the first limiting post 253, limiting one end of the spring 24. The second limiting post 254 is aligned with the pad mounting hole of the support base 23 and inserted through the conical surface for fixation.

[0068] The support rod 22 has a limiting plate 221 in the middle, and a spring 24 is sleeved on the support rod 22. One end of the spring 24 abuts against the limiting plate 221, and the other end abuts against the limiting ring 252. The limiting plate 221 and the support rod 22 are integrally set. The diameter of the limiting plate 221 is larger than the diameter of the support rod 22. The limiting plate 221 can be set as an annular boss, which serves as an axial stop structure at the upper end of the spring 24. The spring 24 is sleeved on the support rod 22 to realize guiding and telescopic movement. When the spring 24 is compressed, it is subjected to force by the limiting plate 221 to prevent the spring 24 from falling off and to transmit elastic force. The other end of the spring 24 abuts against the limiting ring 252 of the support pad 25 to form a fixed fulcrum and complete the force closed loop. Understandably, the limiting plate 221 is located in the middle of the support rod 22, such as an annular boss, a cross reinforcing rib, or a polygonal flange. It serves as the axial limiting end of the spring 24, bearing the thrust when the spring 24 is compressed, preventing the spring 24 from slipping off the support rod 22, and is used to adjust the pre-compression of the spring 24. The spring 24 is sleeved on the support rod 22, and the support rod 22 serves as the guide shaft for the spring 24. The inner ring of the spring 24 is clearance-fitted with the outer wall of the support rod 22.

[0069] The specific working process is as follows: Spring 24 is in a pre-compressed state, with one end pressing on the limiting plate 221 and the other end pressing on the limiting ring 252. When the door is opened, the upper hinge plate 11 rotates, driving the support bearing 21 to move along the second rotation axis 14, and the support rod 22 moves downwards relative to it. Spring 24 is further compressed, and the elastic force increases. When the door is closed, the external force is released, and spring 24 releases energy, pushing the support rod 22 back to its original position. The two ends of spring 24 are in double-end contact to prevent spring 24 from shifting, tilting, or falling off. The elastic force is directly transmitted through the rigid structure, which is highly efficient. The initial compression amount can be adjusted by the position of the limiting plate 221 to adapt to different loads.

[0070] Specifically, the second rotating shaft 14 includes a rotating shaft body 141 and connecting portions 142 located at both ends of the rotating shaft body 141. The connecting portions 142 are cylindrical structures that cooperate with the upper hinge plate 11. The circumferential outer wall of the rotating shaft body 141 is provided with a limiting protrusion 143, which is connected to the support bearing 21.

[0071] The rotating shaft body 141 serves as the middle section and has a limiting protrusion 143. The rotating shaft body 141 cooperates with the support bearing 21 to achieve positioning and guidance. The connecting parts 142 are located at both ends of the rotating shaft body 141 and are used to fix the second rotating shaft 14 to the upper hinge plate 11. The connecting parts 142 and the rotating shaft body 141 are integrally set. The connecting parts 142 are cylindrical and are inserted into the corresponding holes of the upper hinge plate 11. The cooperation method is clearance cooperation, which is simple to process and has high positioning accuracy. Specifically, the connecting parts 142 at both ends of the rotating shaft body 141 are inserted into the mounting holes of the upper hinge plate 11, the support bearing 21 cooperates with the rotating shaft body 141 from the bottom, and the remaining components of the elastic device 2 are installed in sequence.

[0072] In another embodiment, the lower hinge plate 12 includes a mounting base 121 and side plates 122 located at both ends of the mounting base 121. Both side plates 122 have arc-shaped limiting holes 124, and the outer end of the connecting portion 142 is inserted into the arc-shaped limiting holes 124. The mounting base 121 has side plates 122 at both lateral ends, which support the rotating structure and have arc-shaped limiting holes 124. The end of the second rotating shaft 14 slides within the arc-shaped limiting holes 124, forming a kinematic pair and guiding the rotation trajectory. The mounting base 121 is a flat plate structure with screw holes, fixed to the cabinet or furniture body, and supports the entire lower hinge plate 12. The side plates 122 are perpendicular to both ends of the mounting base 121, forming a U-shaped frame to enhance overall rigidity and support rotational movement.

[0073] Arc-shaped limiting holes 124 are provided on each side plate 122. The hole shape is an arc curve, and the center of the circle is set on the rotation center line of the hinge 1. The connecting parts 142 at both ends of the second rotating shaft 14 pass through the arc-shaped limiting holes 124. The connecting parts 142 slide along the arc in the hole to form a guide rail motion pair, thereby realizing the path guidance when the door is opened.

[0074] Similarly, the upper hinge plate 11 includes a mounting base and side plates at both ends of the mounting base. Both side plates are provided with mounting holes. The two ends of the first rotating shaft 13 are fitted into the mounting holes of the side plates and protrude from the mounting holes. The first rotating shaft 13 is fixed to the lower hinge plate 12. The mounting base is a flat plate structure with mounting holes to achieve fixation with the cabinet door or freezer door.

[0075] In another embodiment, to further improve the hovering effect, buffer damping ribs are provided on the inner walls of both sides of the slot 251. The buffer damping ribs on both sides are interference-fitted with the support rod 22 to support the support rod 22. When the upper hinge plate 11 and the lower hinge plate 12 move relative to each other, the support rod 22 slides with the buffer damping ribs, thereby generating a damping effect. During the relative movement of the upper hinge plate 11 and the lower hinge plate 12, a certain buffering effect is maintained, which solves the problems of poor hovering effect and small hovering angle of the current thin hinge 1, increases the buffering effect when the door is closed, avoids the problem of hand pinching when the door is closed, and improves the user experience.

[0076] This application also provides a device including the hinge 1 described in any of the above embodiments.

[0077] The device 3 provided in this embodiment includes a hinge 1 with an upper hinge plate 11 and a lower hinge plate 12 rotatably connected. The upper hinge plate 11 is provided with a second rotating shaft 14. The outer circumferential wall of the second rotating shaft 14 is provided with a limiting protrusion 143. The top of the support rod 22 is provided with a support bearing 21, which is fitted onto the outer circumferential wall of the second rotating shaft 14 and cooperates with the limiting protrusion 143. Thus, during the relative rotation of the support bearing 21 and the second rotating shaft 14, a greater normal force is generated through the contact between the support bearing 21 and the limiting protrusion 143, providing a greater torque to the device. At the same time, the hovering angle is reasonably set according to the position of the limiting protrusion 143 on the circumferential side of the second rotating shaft 14, improving the user experience.

[0078] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0079] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A hinge, characterized in that, include: The hinge body includes an upper hinge plate and a lower hinge plate, which are rotatably connected via a first rotating shaft; the upper hinge plate is provided with a second rotating shaft, and the outer circumferential wall of the second rotating shaft is provided with a limiting protrusion, which protrudes outward along the radial direction of the second rotating shaft; The elastic device includes a support bearing, a support rod, a support base, a spring, and a support pad. The top of the support rod is connected to the support bearing, which is fitted onto the circumferential outer wall of the second rotating shaft and can cooperate with the limiting protrusion. The support base is located on the lower hinge plate, and the support pad is located in the middle of the support base. The support pad has a slot, and the bottom of the support rod passes through the slot. One end of the spring is fitted onto and abuts against the support rod, and the other end is connected to the support pad.

2. The hinge according to claim 1, characterized in that, The support base has a pad mounting hole in the middle, and the bottom surfaces on both sides are provided with a second arc-shaped surface that bulges downward. The support pad is located in the pad mounting hole. The lower hinge plate has support bosses on both sides, and the top surface of the support boss is a first arc-shaped surface that is recessed downwards; the support base is attached to the support boss, and the second arc-shaped surface cooperates with the first arc-shaped surface.

3. The hinge according to claim 2, characterized in that, The support base includes two parallel support rods, with their ends fixedly connected and the bottom having the second arc-shaped surface; the middle of the two support rods bends outward to form the pad mounting hole.

4. The hinge according to claim 3, characterized in that, The support pad includes a limiting ring, with a first limiting post on each side of one end of the limiting ring and a second limiting post on each side of the other end of the limiting ring. The outer walls of the two first limiting posts are sleeved with the inner ring of the spring; The outer walls of the two second limiting posts are respectively provided with a first conical surface and a second conical surface, forming a narrow opening that is inserted into the inner wall of the pad mounting hole; The gap between the two first limiting posts and the gap between the two second limiting posts constitute the slot.

5. The hinge according to claim 4, characterized in that, A limiting plate is provided in the middle of the support rod, and the spring is sleeved on the support rod. One end of the spring abuts against the limiting plate, and the other end abuts against the limiting ring.

6. The hinge according to claim 1, characterized in that, There are several limiting protrusions, and each limiting protrusion is evenly distributed on the radial section of the second rotating shaft and extends along the axial direction of the second rotating shaft.

7. The hinge according to claim 6, characterized in that, The limiting protrusion has a circular arc or elliptical arc cross section.

8. The hinge according to claim 1, characterized in that, The second rotating shaft includes a rotating shaft body and connecting portions at both ends of the rotating shaft body. The connecting portions are cylindrical structures that cooperate with the upper hinge plate. The circumferential outer wall of the rotating shaft body is provided with the limiting protrusion and is connected to the support bearing.

9. The hinge according to claim 8, characterized in that, The lower hinge plate includes a mounting base and side plates located at both ends of the mounting base; Both side plates are provided with arc-shaped limiting holes, and the outer end of the connecting part is inserted into the arc-shaped limiting holes.

10. A device, characterized in that, Includes the hinge as described in any one of claims 1-9.

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