Double-deck hover hinge mechanism

Abstract

The application discloses a double-layer hovering hinge mechanism, which comprises a hinge upper plate, a hinge cover plate and a hinge fixing plate; hinge lugs of the hinge cover plate, the hinge fixing plate and the hinge upper plate arranged in sequence on the same side form a set of hinge lug assemblies, hinge shafts are respectively arranged in hinge holes of the hinge lug assemblies on both sides; first rotating friction pairs and rotating limiting pairs are respectively arranged on both sides of the hinge lugs of the hinge upper plate, the first rotating friction pairs are used for providing friction force in the rotating direction of the hinge upper plate, and the rotating limiting pairs are used for limiting the movement angle of automatic rotation of the hinge upper plate; friction assemblies are arranged between the hinge lugs of the hinge cover plate and the hinge shafts, and the friction assemblies are used for providing friction force in the rotating direction of the hinge cover plate. The structure that the upper and lower hinges independently rotate is adopted, the action and function between the two layers of hinges do not interfere, and the double-layer hovering hinge mechanism can be widely applied to use scenes, such as handrail cover plates, central control mechanisms and the like, which have double-layer rotating opening.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts technology, specifically relating to a double-layer suspension hinge mechanism. Background Technology

[0002] Hinges, as mechanical components, are widely used in various fields such as automobiles. Their functions are becoming increasingly diverse, with hinges featuring hovering capabilities being applied to assemblies such as automotive armrests. This type of hinge provides an automatic spring-opening force to the armrest cover when it is opened, allowing the cover to automatically spring open to a set angle and then hover.

[0003] Current hinges typically only allow for single-layer opening and stopping. When faced with the need to simultaneously meet the requirements of refrigerator sealing and upper storage, such single-layer stopping hinges cannot meet the usage requirements. Summary of the Invention

[0004] The purpose of this invention is to provide a double-layer hovering hinge mechanism to solve the problem that existing single-layer hovering hinges cannot meet the usage requirements.

[0005] This invention is achieved through the following technical solution: A double-layer hovering hinge mechanism, comprising a hinge upper plate, a hinge cover plate, and a hinge fixing plate; The hinge upper plate, hinge cover plate and hinge fixing plate are each provided with two hinge lugs, and each hinge lug is provided with a hinge hole for the hinge shaft to pass through, and the hinge hole on the hinge fixing plate is an oblong hole. The two hinge lugs of the upper hinge plate are located between the two hinge lugs of the hinge fixing plate, and the two hinge lugs of the hinge cover plate are located on the outside of the two hinge lugs of the hinge fixing plate. The hinge cover plate, hinge fixing plate and hinge upper plate arranged sequentially on the same side form a set of hinge bracket assemblies, and the hinge shaft is respectively inserted into each hinge hole of the hinge bracket assembly on both sides. The hinge shaft is a double-ended bolt structure, and the bolt of the double-ended bolt is set with an oblong cross section; Each hinge shaft is fitted with a torsion spring, which provides a spring force for the upper hinge plate to rotate and open. A first rotational friction pair and a rotational limiting pair are respectively provided on both sides of the hinge lug on the upper hinge plate. The first rotational friction pair is used to provide frictional force in the rotational direction to the upper hinge plate, and the rotational limiting pair is used to limit the movement angle of the upper hinge plate to rotate automatically. A friction assembly is provided between the hinge lug of the hinge cover and the hinge shaft, which provides frictional force to the hinge cover in the rotational direction.

[0006] In some embodiments, one torsion arm of the torsion spring is engaged with the hinge shaft, and the other torsion arm abuts against the upper plate of the hinge. When the hinge plate rotates open, the torsion arm in one of the torsion springs, which abuts against the hinge plate, can abut against the hinge fixing plate after rotating a set angle.

[0007] In some embodiments, a fixing rod is provided on the hinge fixing plate to limit the rotational position of the torsion arm of one of the torsion springs.

[0008] In some embodiments, the first rotating friction pair includes a first washer and a first friction plate, the first washer being snapped into connection with the hinge lug of the upper hinge plate, and the first friction plate having an oblong hole that mates with the hinge shaft. A first butterfly-shaped washer and an inner nut are provided on the outside of the first friction plate, and the inner nut is threadedly connected to the hinge shaft.

[0009] In some embodiments, the rotation limiting pair includes a first rotation limiting piece and a second rotation limiting piece, wherein the first rotation limiting piece is snapped into connection with the hinge lug of the upper hinge plate, and the second limiting piece is provided with an oblong hole that mates with the hinge shaft. The first rotating limiting plate is provided with a limiting groove, and the second rotating limiting plate is provided with a limiting protrusion. The limiting protrusion is fitted into the limiting groove, and the circumferential dimension of the limiting protrusion is smaller than the circumferential dimension of the limiting groove.

[0010] In some embodiments, a second butterfly-shaped gasket is provided on one side of the second rotation limiting piece.

[0011] In some embodiments, an isolation insert is provided on the side of the hinge lug of the hinge fixing plate facing the rotation limiting pair. The isolation insert is snapped together with the hinge shaft, so that the isolation insert can provide an axial abutment force for the rotation limiting pair.

[0012] In some embodiments, the friction assembly includes a second friction plate and a third friction plate disposed on both sides of the hinge lug of the hinge fixing plate. The second friction plate and the third friction plate are provided with waist-shaped holes that cooperate with the hinge shaft. An outer nut is provided on the outside of the third friction plate, and the outer nut is threadedly connected to the hinge shaft.

[0013] In some embodiments, a coaxial sleeve is provided between the two hinge axes.

[0014] In some embodiments, a first limiting component is provided between the upper hinge plate and the fixed hinge plate to limit the maximum rotation angle of the upper hinge plate along the opening rotation direction. And / or, a second limiting component is provided between the hinge cover plate and the hinge fixing plate to limit the maximum rotation angle of the hinge cover plate along the opening rotation direction.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: This invention employs a structure with two independent hinge layers, integrating the two hinge layers into a single hinge mechanism. The upper hinge automatically opens to a set angle via a torsion spring during the first stage of opening and can hover at any position. The lower hinge can rotate independently and hover at any position. The actions and functions of the two hinge layers do not interfere with each other. This invention can be widely applied to scenarios such as armrest covers and central control mechanisms where double-layer rotation opening is required. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the double-layer hovering hinge mechanism according to an embodiment of the present invention.

[0018] Figure 2 This is an exploded view of the double-layer hovering hinge mechanism according to an embodiment of the present invention.

[0019] Figure 3 This is a front view of the double-layer hovering hinge mechanism according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the cooperation structure between the first rotation limiting member and the second rotation limiting member in an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the rotation limiting structure on the first and second rotation limiting members in an embodiment of the present invention.

[0022] in: 100. Hinge upper plate; 11. Limiting plate; 200. Hinge cover plate; 21. Limiting ear plate; 300. Hinge fixing plate; 31. First limiting ear; 32. Second limiting ear plate. 21. Hinge pin; 22. Torsion spring; 23. Fixing rod; 24. Coaxial sleeve; 25. Torsion spring bushing. 31. First gasket; 32. First friction plate; 33. First butterfly gasket; 34. Inner nut; 35. First rotation limit plate; 351. Limiting groove; 36. Second rotation limit plate; 361. Limiting protrusion; 37. Second butterfly gasket. 40. Isolation insert; 51. Washer, 52. Second friction plate, 53. Third friction plate, 54. Third butterfly washer, 55. Outer nut. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0024] In the double-layer hovering hinge mechanism of the present invention, the upper hinge can be automatically opened to the designed angle by a torsion spring in the first stage of opening, and in the second stage, the upper hinge can be rotated by external force and can be hovered at any position; the lower hinge can rotate to any angle within the working load limit and hover at any angle, so as to realize the function of double-layer hinge connection. It can be widely used in application scenarios such as handrail covers and central control mechanisms where double-layer rotation opening is required.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments of the present invention, the double-layer hovering hinge mechanism includes a hinge upper plate 100, a hinge cover plate 200, and a hinge fixing plate 300. The hinge upper plate 100, hinge cover plate 200 and hinge fixing plate 300 are each provided with two hinge lugs. Each hinge lug is provided with a hinge hole for the hinge shaft to pass through, and the hinge hole on the hinge fixing plate is an oblong hole.

[0026] The two hinge lugs of the hinge upper plate 100 are located between the two hinge lugs of the hinge fixing plate 300, and the two hinge lugs of the hinge cover plate 200 are located on the outside of the two hinge lugs of the hinge fixing plate 300.

[0027] The hinge cover plate 200, hinge fixing plate 300 and hinge upper plate 100 arranged sequentially on the same side form a set of hinge bracket assemblies. The hinge shaft 21 is inserted into each hinge hole of the hinge bracket assembly on both sides, so that the hinge upper plate and hinge cover plate are respectively connected to the hinge fixing plate.

[0028] The hinge shaft 21 adopts a double-ended stud structure, and the screw part of the double-ended stud is set as an oblong cross-section structure that mates with the hinge hole on the hinge fixing plate.

[0029] Torsion springs 22 are respectively installed on the hinge shaft 21, and the torsion springs provide the force required for the opening and rotation of the upper plate of the hinge.

[0030] A snap-fit ​​groove is provided at the end of the hinge shaft 21. One torsion arm of the torsion spring 22 is snapped into the snap-fit ​​groove, and the other torsion arm abuts against the upper hinge plate 100, so that the upper hinge plate can automatically rotate and open when it is opened.

[0031] A fixing rod 23 is provided on the hinge fixing plate 300. The torsion arm of one of the torsion springs extends to the position of the fixing rod. When the torsion spring drives the upper plate of the hinge to rotate a certain distance, the torsion arm of the torsion spring will abut against the fixing rod. At this time, the spring force for the rotation of the upper plate of the hinge is continued only through the torsion spring on the other side.

[0032] A torsion spring sleeve 25 is fitted on the hinge shaft 21, and a torsion spring 22 is fitted on the torsion spring sleeve 25 to protect the torsion spring and the hinge shaft.

[0033] by Figure 3 Taking a set of hinge lugs located on the left side as an example, a first washer 31, a first friction plate 32, and a first butterfly washer 33 are sequentially arranged on the right side of the hinge lug of the upper hinge plate 100. The first washer 31, the first friction plate 32, and the first butterfly washer 33 are sequentially sleeved on the hinge shaft 21. An inner nut 24 is provided on the outside of the first butterfly washer. The inner nut 24 is threadedly connected to the hinge shaft 21, providing mutual pressing force for the first washer, the first friction plate, and the first butterfly washer.

[0034] The first washer 31 is snapped into place with the hinge lug of the upper hinge plate. The first friction plate 32 has an oblong hole that mates with the hinge shaft, so that when the upper hinge plate rotates, the first washer 31 and the first friction plate 32 form a first rotational friction pair, providing frictional force in the rotational direction for the upper hinge plate. Under the compressive force of the inner nut, the first butterfly washer 33 provides elastic compressive force to the first friction plate and the first washer, and provides elastic deformation space in the axial direction.

[0035] Between the hinge lug of the hinge upper plate 100 and the hinge lug of the hinge fixing plate 300, a first rotation limiting piece 35, a second rotation limiting piece 36, a second butterfly-shaped washer 37 and an isolation insert 40 are arranged sequentially from right to left.

[0036] The first rotation limiting piece 35, the second rotation limiting piece 36, and the second butterfly-shaped washer 37 are sequentially sleeved on the hinge shaft 21. The first rotation limiting piece 35 is engaged with the hinge lug of the upper hinge plate 100. The second rotation limiting piece 36 has an oblong hole that mates with the hinge shaft, so that when the upper hinge plate rotates, the first rotation limiting piece 35 and the second rotation limiting piece 36 form a rotation limiting pair to restrict the automatic opening angle of the upper hinge plate. Similarly, the second butterfly-shaped washer 37 serves the same function as the first butterfly-shaped washer.

[0037] like Figure 4 and Figure 5 A limiting groove 351 is provided on the first rotation limit 35, and a limiting protrusion 361 is provided on the second rotation limit piece 36, which can cooperate to fall into the limiting groove, and the circumferential dimension of the limiting protrusion is smaller than the circumferential dimension of the limiting groove.

[0038] When the upper hinge plate rotates under the force of the torsion spring, the first rotation limit plate and the second rotation limit plate rotate relative to each other. When the limit protrusion and the limit groove come into contact, a rotation limit engagement is formed between the two, so that the upper hinge plate automatically opens to the set angle and then stops rotating.

[0039] For example, such as Figure 5 The included angle of the limiting groove 351 is B, and the included angle of the limiting protrusion 361 is A. At this point, the theoretical angle of rotation of the upper hinge plate is... This ensures the consistency of the automatic opening angle of the upper hinge plate.

[0040] Between the hinge lug of the hinge fixing plate 300 and the hinge lug of the hinge cover plate 200, a washer 51 and a second friction plate 52 are arranged sequentially from right to left. A third friction plate 53 and a third butterfly washer 54 are arranged sequentially on the outside of the hinge lug of the hinge cover plate. An outer nut 55 is arranged on the outside of the third butterfly washer 54. The outer nut 55 is threadedly connected to the hinge shaft 21, providing mutual pressing force between the second friction plate, the hinge lug of the hinge cover plate and the third friction plate, so that the three form a friction fit, allowing the hinge cover plate to rotate to any position and then stop.

[0041] The gasket 51, the second friction plate 52, the third friction plate 53, and the second butterfly gasket 54 are respectively fitted onto the hinge shaft 21. The second and third friction plates are provided with oblong holes that mate with the hinge shaft, so that when the hinge cover plate rotates, it can form a frictional engagement with the second friction plates on both sides.

[0042] The third butterfly-shaped washer 54 is used to provide an axial elastic compressive force between the second friction plate, the hinge lug of the hinge cover plate and the third friction plate. The magnitude of the suspension friction force of the hinge cover plate can be adjusted by adjusting the outer nut.

[0043] The first, second, and third friction plates can be made of brass.

[0044] A limiting plate 11 is provided on the hinge upper plate 100, and a first limiting lug 31 is provided on the hinge fixing plate 300. When the hinge upper plate rotates to the position where the limiting plate abuts against the first limiting lug, the maximum rotation angle of the hinge upper plate can be limited.

[0045] A limiting ear plate 21 is provided on the hinge cover plate 200, and a matching second limiting support ear 32 is provided on the hinge fixing plate 300. When the hinge cover plate rotates upward and rotates to the position where the limiting ear plate abuts against the second limiting support ear, the maximum rotation angle of the hinge cover plate can be limited.

[0046] During assembly, a coaxial sleeve 24 is placed between the two hinge shafts to ensure that the two hinge shafts have good coaxiality.

[0047] An annular groove is provided on the hinge shaft 21, and a U-shaped insertion port is provided on the isolation insert 40, allowing the isolation insert 40 to be inserted into the annular groove and fixed on the hinge shaft 21. By providing the isolation insert, the forces applied by the inner nut and the outer nut along the axial direction can be isolated, preventing them from interfering with each other, and enabling independent adjustment of the friction and opening force between the hinge upper plate, the hinge cover plate, and the hinge fixing plate.

[0048] This double-layer hovering hinge mechanism integrates two independent rotating and hovering layers as well as automatic pop-up opening functions. After opening, the two layers can rotate simultaneously without interfering with each other, which well meets the functional requirements of refrigerator configuration and upper storage.

[0049] Taking the application of hinge mechanism in handrail assembly as an example, the hinge fixing plate is fixedly installed on the handrail assembly, the handrail cover plate is connected to the hinge upper plate, the handrail cover plate is pressed down to unlock, the hinge upper plate rotates and twists the torsion spring, after being released, the hinge upper plate rotates under the action of the torsion spring, rotates to the limit angle between the first rotation limit plate and the second rotation limit plate, so as to realize the automatic opening of the handrail cover plate and the suspension at the set angle; Continue rotating the handrail cover upwards. Under the frictional force of the first rotating friction pair, the handrail cover can be suspended after rotating to any angle.

[0050] After the armrest cover is opened, the inner hinge cover can rotate around the hinge axis, and under the action of the second friction plate and the third friction plate, it can be suspended at any rotation position.

[0051] This double-layer hovering hinge mechanism can achieve independent rotation of the upper and lower layers or rotation of the upper and lower layers together without interference between them, and has a wide range of applications.

[0052] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this invention is usually placed in during use. They are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0053] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this invention does not imply that the components are required to be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0054] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. Double-layer hover hinge mechanism, characterized in that, Includes the hinge top plate, hinge cover plate, and hinge fixing plate; The hinge upper plate, hinge cover plate and hinge fixing plate are each provided with two hinge lugs, and each hinge lug is provided with a hinge hole for the hinge shaft to pass through, and the hinge hole on the hinge fixing plate is an oblong hole. The two hinge lugs of the upper hinge plate are located between the two hinge lugs of the hinge fixing plate, and the two hinge lugs of the hinge cover plate are located on the outside of the two hinge lugs of the hinge fixing plate. The hinge cover plate, hinge fixing plate and hinge upper plate arranged sequentially on the same side form a set of hinge bracket assemblies, and the hinge shaft is respectively inserted into each hinge hole of the hinge bracket assembly on both sides. The hinge shaft is a double-ended bolt structure, and the bolt of the double-ended bolt is set with an oblong cross section; Each hinge shaft is fitted with a torsion spring, which provides a spring force for the upper hinge plate to rotate and open. A first rotational friction pair and a rotational limiting pair are respectively provided on both sides of the hinge lug on the upper hinge plate. The first rotational friction pair is used to provide frictional force in the rotational direction to the upper hinge plate, and the rotational limiting pair is used to limit the movement angle of the upper hinge plate to rotate automatically. A friction assembly is provided between the hinge lug of the hinge cover and the hinge shaft, which provides frictional force to the hinge cover in the rotational direction.

2. The dual-stage hover hinge mechanism of claim 1, wherein, One torsion arm of the torsion spring is engaged with the hinge shaft, and the other torsion arm abuts against the upper plate of the hinge. When the hinge plate rotates open, the torsion arm in one of the torsion springs, which abuts against the hinge plate, can abut against the hinge fixing plate after rotating a set angle.

3. The double-layer hovering hinge mechanism according to claim 2, characterized in that, A fixing rod is provided on the hinge fixing plate, which limits the rotation position of the torsion arm of one of the torsion springs.

4. The dual-stage hover hinge mechanism of claim 1, wherein, The first rotating friction pair includes a first washer and a first friction plate. The first washer is snapped into connection with the hinge lug of the upper hinge plate. The first friction plate is provided with an oblong hole that mates with the hinge shaft. A first butterfly-shaped washer and an inner nut are provided on the outside of the first friction plate, and the inner nut is threadedly connected to the hinge shaft.

5. The dual-stage hover hinge mechanism of claim 4, wherein, The rotation limiting pair includes a first rotation limiting piece and a second rotation limiting piece. The first rotation limiting piece is snapped into connection with the hinge lug of the upper hinge plate. The second limiting piece is provided with an oblong hole that mates with the hinge shaft. The first rotating limiting plate is provided with a limiting groove, and the second rotating limiting plate is provided with a limiting protrusion. The limiting protrusion is fitted into the limiting groove, and the circumferential dimension of the limiting protrusion is smaller than the circumferential dimension of the limiting groove.

6. The dual-stage hover hinge mechanism of claim 5, wherein, A second butterfly-shaped gasket is provided on one side of the second rotation limit plate.

7. The dual-stage hover hinge mechanism of any one of claims 1-6, wherein, An isolation plate is provided on the side of the hinge bracket of the hinge fixing plate facing the rotation limit pair. The isolation plate is snapped into the hinge shaft, so that the isolation plate can provide the rotation limit pair with an axial abutment force.

8. The dual-stage hover hinge mechanism of claim 1, wherein, The friction assembly includes a second friction plate and a third friction plate disposed on both sides of the hinge lug of the hinge fixing plate. The second and third friction plates are provided with waist-shaped holes that mate with the hinge shaft. An outer nut is provided on the outside of the third friction plate, and the outer nut is threadedly connected to the hinge shaft.

9. The dual-stage hover hinge mechanism of claim 1, wherein, A coaxial sleeve is fitted between the two hinge axes.

10. The double-layer hovering hinge mechanism according to claim 1, characterized in that, A first limiting assembly is arranged between the hinge upper plate and the hinge fixing plate, and is used for limiting the maximum rotation angle of the hinge upper plate in the opening rotation direction. And / or, a second limiting assembly is arranged between the hinge cover plate and the hinge fixing plate, and is used for limiting the maximum rotation angle of the hinge cover plate in the opening rotation direction.

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