A forward and reverse adjustable damping sub-mother hinge and rotating switch device

Abstract

The present application is suitable for the hinge connection technical field. The present application discloses a child-mother hinge with adjustable damping in positive and reverse directions, which comprises a child hinge, a mother hinge, and a damping shaft mechanism arranged between the child hinge and the mother hinge. The damping shaft mechanism comprises a shaft fixed with the child hinge, the shaft has two ends respectively located in a first mother shaft hole and a second mother shaft hole on the mother hinge, and the shaft has a first one-way bearing assembly and a second one-way bearing assembly fixed at the two ends respectively, and the first one-way bearing assembly and the second one-way bearing assembly are installed in opposite directions. Since the shaft is provided with the one-way bearing assemblies in opposite directions respectively, the damping of the two ends of the shaft is adjusted respectively to realize different dampings in positive and reverse rotations, so as to better adapt to the needs of different application scenes. When used on a door, the damping of closing the door is increased and the damping of opening the door is appropriate through appropriate adjustment, which can prevent wind blowing and prevent clamping, and does not affect the opening of the door, and is widely used on objects which need to be rotated and opened.

Description

Technical Field

[0001] The present invention relates to the technical field of hinge connection, in particular to a hinge and a rotary switch device with adjustable damping in both forward and reverse directions. Background Art

[0002] A rotating shaft, also known as a pivot, is typically a necessary component between two rotating parts. It typically withstands torque in the direction of rotation. In certain situations, such as horizontal rotation, it also needs to withstand bending moments perpendicular to the direction of rotation. It is widely used in kitchen cabinets and doors. To facilitate opening, a damping mechanism is often incorporated. However, these damping mechanisms typically have bidirectional damping. While this prevents pinching during closing, the damping effect increases the difficulty of opening.

[0003] Existing damping shafts cannot achieve unidirectional rotation damping, whereby damping is generated in one rotation direction and no damping is generated in the other. For example, the unidirectional damping shaft disclosed in Chinese patent publication number CN207935274U can achieve unidirectional rotation damping, but the structure is complex and difficult to manufacture and assemble. Summary of the Invention

[0004] The main technical problem solved by the present invention is to provide a hinge with adjustable damping in both forward and reverse directions. The hinge with adjustable damping in both forward and reverse directions can achieve adjustable damping in both forward and reverse rotation directions, has a simple and compact structure, and has high assembly efficiency.

[0005] In order to solve the above problems, the present invention provides a sub-hinge with adjustable damping in both directions. The sub-hinge with adjustable damping in both directions includes a sub-hinge and a main hinge, and a damping shaft mechanism arranged between the sub-hinge and the main hinge. The damping shaft mechanism includes a shaft fixed to the sub-hinge, and the two ends of the shaft are respectively located at a first main shaft hole and a second main shaft hole on the main hinge. The two ends of the shaft are respectively fixed with a first one-way bearing assembly and a second one-way bearing assembly, and the installation directions of the first one-way bearing assembly and the second one-way bearing assembly are opposite.

[0006] Furthermore, the first one-way bearing assembly includes at least one first one-way bearing.

[0007] Furthermore, when there are two or more first one-way bearings, each first one-way bearing is fixed in series at one end of the rotating shaft in the same direction.

[0008] Furthermore, the second one-way bearing assembly includes at least one second one-way bearing.

[0009] Furthermore, when there are two or more second one-way bearings, each second one-way bearing is fixed in series at the other end of the rotating shaft in the same direction, and each second one-way bearing is in the opposite direction to the first one-way bearing.

[0010] Furthermore, the second one-way bearing assembly includes a second one-way bearing located in the second mother shaft hole and sleeved on one end of the rotating shaft in the opposite direction of the first one-way bearing, two second stop plates sleeved on the rotating shaft and located on the outside of the second one-way bearing, two spring plates located between the two second stop plates, and a second nut provided on the outside of a second stop plate and fixed to the rotating shaft.

[0011] Furthermore, the first one-way bearing assembly also includes two first stoppers sleeved on the rotating shaft and located outside the first one-way bearing, two first elastic plates located between the two first stoppers, and a first nut located outside a first stopper and fixed to the rotating shaft.

[0012] Furthermore, a limiting structure is provided between the first one-way bearing and the first mother shaft hole, and between the second one-way bearing and the second mother shaft hole.

[0013] Further, the limiting structure includes a first mother shaft hole positioning groove provided on the first mother shaft hole and a first one-way bearing positioning groove provided on the first one-way bearing, and a stop pin provided between the first mother shaft hole positioning groove and the first one-way bearing positioning groove; or includes a second mother shaft hole positioning groove provided on the second mother shaft hole and a second one-way bearing positioning groove provided on the second one-way bearing, and a stop pin provided between the second mother shaft hole positioning groove and the second one-way bearing positioning groove.

[0014] Furthermore, the first mother shaft hole locating grooves and the first one-way bearing locating grooves are the same in number and are located correspondingly.

[0015] Furthermore, the number of the first one-way bearing positioning grooves is three, which are evenly distributed in the circumferential direction of the first one-way bearing.

[0016] Furthermore, the second mother shaft hole locating grooves and the second one-way bearing locating grooves are the same in number and located correspondingly.

[0017] Furthermore, the number of the second one-way bearing positioning grooves is three, which are evenly distributed in the circumferential direction of the second one-way bearing.

[0018] Furthermore, the first female shaft hole and the second female shaft hole are located on the same straight line.

[0019] Furthermore, the sub-hinge is provided with a sub-axis hole for installing the rotating shaft, and the sub-axis hole is provided with a fixing pin for fixing the rotating shaft.

[0020] Further, the shaft is sleeved with a gasket between the first female shaft hole and the second female shaft hole at both ends of the sub-shaft hole.

[0021] Further, the elastic sheet is a butterfly-shaped elastic sheet.

[0022] The application also provides a rotary switch device, which comprises a reverse-adjustable-damping sub-mother hinge, the reverse-adjustable-damping sub-mother hinge comprising a sub-hinge and a mother hinge, and a damping shaft mechanism arranged between the sub-hinge and the mother hinge, the damping shaft mechanism comprising a shaft fixed with the sub-hinge, the shaft having a first female shaft hole and a second female shaft hole on the mother hinge at both ends of the shaft, the shaft having a first one-way bearing assembly and a second one-way bearing assembly fixed at both ends of the shaft, and the first one-way bearing assembly and the second one-way bearing assembly being installed in opposite directions.

[0023] Further, the first one-way bearing assembly comprises at least one first one-way bearing.

[0024] Further, when the number of the first one-way bearings is two or more, each first one-way bearing is fixed in series at one end of the shaft in the same direction.

[0025] Further, the second one-way bearing assembly comprises at least one second one-way bearing.

[0026] Further, when the number of the second one-way bearings is two or more, each second one-way bearing is fixed in series at the other end of the shaft in the same direction, and each second one-way bearing is opposite to the first one-way bearing in direction.

[0027] Further, the second one-way bearing assembly comprises a second one-way bearing opposite to the first one-way bearing in direction and sleeved in the second female shaft hole at one end of the shaft, two second stop sheets sleeved on the shaft and located outside the second one-way bearing, two elastic sheets located between the two second stop sheets, and a second nut fixed with the shaft and located outside one second stop sheet.

[0028] Further, the first one-way bearing assembly further comprises two first stop sheets sleeved on the shaft and located outside the first one-way bearing, two first elastic sheets located between the two first stop sheets, and a first nut fixed with the shaft and located outside one first stop sheet.

[0029] Further, the first one-way bearing and the second one-way bearing are respectively provided with a limiting structure between the first one-way bearing and the first female shaft hole and between the second one-way bearing and the second female shaft hole.

[0030] Further, the limiting structure includes a first mother shaft hole positioning groove provided on the first mother shaft hole and a first one-way bearing positioning groove provided on the first one-way bearing, and a stop pin provided between the first mother shaft hole positioning groove and the first one-way bearing positioning groove; or includes a second mother shaft hole positioning groove provided on the second mother shaft hole and a second one-way bearing positioning groove provided on the second one-way bearing, and a stop pin provided between the second mother shaft hole positioning groove and the second one-way bearing positioning groove.

[0031] Furthermore, the first mother shaft hole locating grooves and the first one-way bearing locating grooves are the same in number and are located correspondingly.

[0032] Furthermore, the number of the first one-way bearing positioning grooves is three, which are evenly distributed in the circumferential direction of the first one-way bearing.

[0033] Furthermore, the second mother shaft hole locating grooves and the second one-way bearing locating grooves are the same in number and located correspondingly.

[0034] Furthermore, the number of the second one-way bearing positioning grooves is three, which are evenly distributed in the circumferential direction of the second one-way bearing.

[0035] Furthermore, the first female shaft hole and the second female shaft hole are located on the same straight line.

[0036] Furthermore, the sub-hinge is provided with a sub-axis hole for installing the rotating shaft, and the sub-axis hole is provided with a fixing pin for fixing the rotating shaft.

[0037] Furthermore, the rotating shaft is provided with gaskets between the two ends of the sub-shaft hole and the first and second mother shaft holes.

[0038] Furthermore, the shrapnel is a butterfly-shaped shrapnel.

[0039] The present invention discloses a forward and reverse adjustable damping hinge comprising a sub-hinge and a main hinge, and a damping shaft mechanism disposed between the sub-hinge and the main hinge. The damping shaft mechanism comprises a shaft secured to the sub-hinge, with its ends located in first and second main shaft holes, respectively, on the hinge. A first and second one-way bearing assemblies are secured to the ends of the shaft, with the first and second one-way bearing assemblies being mounted in opposite directions. Because the shaft is provided with one-way bearing assemblies in opposite directions, the damping at each end of the shaft can be adjusted to achieve different damping levels during forward and reverse rotation, thereby better adapting to different application requirements. When used on a door, appropriate adjustment increases the damping during closing and provides an appropriate damping level during opening. This provides wind protection and prevents pinching while maintaining door opening stability, making it widely applicable for objects requiring a rotating switch. Furthermore, when the damping level needs to be adjusted, the damping between the stop pin and the shaft can be adjusted to achieve adjustable damping, better suiting different user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the description only show some of the embodiments of the present application, and should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained from these drawings without creative labor.

[0041] Figure 1 is a structure schematic diagram of a parent-child hinge embodiment of the present application with forward and reverse adjustable damping.

[0042] Figure 2 is an exploded schematic diagram of a parent-child hinge embodiment of the present application with forward and reverse adjustable damping.

[0043] Figure 3 is a structure schematic diagram of a front projection along a direction perpendicular to the rotation shaft.

[0044] Figure 4 is Figure 3 is a structure schematic diagram along the A-A direction.

[0045] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0046] The claims of the present application will be further described in detail below in combination with specific embodiments and the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor also belong to the scope of protection of the present application.

[0047] It should be understood that in the embodiments of the present application, all directional terms such as "up", "down", "left", "right", "front", "back", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship commonly used when the product is used, and are only for the convenience of simplifying the description of the present application, and do not mean that the device, element or component must have a specific orientation and specific orientation structure, and should not be understood as limiting the present application. It is only used to explain the relative position relationship, movement condition, etc. between the components shown in the drawings, and when the specific attitude changes, the directional indication may also change accordingly.

[0048] Furthermore, ordinal numbers such as "first" and "second" in this disclosure are used solely for distinction purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. The terms "first" and "second" may explicitly or implicitly indicate at least one of the technical features. In this disclosure, "plurality" means at least two, i.e., two or more, unless otherwise expressly specified; and "at least one" means one, one, or more.

[0049] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can mean that the positional relationship between components is relatively fixed, or that the components are physically fixedly connected. It can be a detachable connection or an integrated structure. It can be a mechanical connection or an electrical signal connection. It can be a direct connection or an indirect connection through an intermediate medium or component. It can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined in the specification, other understandings may not achieve the corresponding functions or effects. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] The controllers and control circuits that may be involved in the present invention are conventional control technologies or units known to those skilled in the art. For example, the control circuits of the controllers can be implemented by those skilled in the art using existing technologies, such as simple programming. The power supply also utilizes the existing technology described above. Since the main technical point of the present invention lies in improving the mechanical device, the specific circuit control relationships and circuit connections will not be described in detail herein.

[0051] like Figure 1 - Figure 4 As shown, the present invention provides an embodiment of a hinge with adjustable damping in both forward and reverse directions.

[0052] The forward and reverse adjustable damping sub-hinge includes a sub-hinge 2 and a main hinge 1, and a damping shaft mechanism arranged between the sub-hinge 2 and the main hinge 1, the damping shaft mechanism includes a shaft 3 fixed to the sub-hinge 2, the two ends of the shaft 3 are respectively located at the first main shaft hole 12 and the second main shaft hole 13 on the main hinge 1, the two ends of the shaft 3 are respectively fixed with a first one-way bearing assembly 4 and a second one-way bearing assembly 5, and the first one-way bearing assembly 4 and the second one-way bearing assembly 5 are installed in opposite directions.

[0053] Specifically, the sub hinge 2 is provided with a fixing hole 21 for fixing the rotating shaft 3 and a plurality of sub mounting holes 22 for mounting, each of the sub mounting holes 22 is distributed on different straight lines, i.e. not arranged on the same straight line, the sub hinge 2 is also provided with a positioning hole 23 for fixing the rotating shaft 3, and the rotating shaft 3 is fastened on the sub hinge 2 by cooperating the fixing pin 6 with the positioning hole 23. According to the need, the rotating shaft 3 and the sub hinge 2 remain in a relative static state, i.e. no rotational displacement occurs between the rotating shaft 3 and the sub hinge 2 during work. The realization that no rotational displacement occurs between the rotating shaft 3 and the sub hinge 2 can also be realized in other ways, such as setting the fixing hole 21 as a non-circular hole such as a square hole, etc., and the cross section of the rotating shaft 3 matches it. The one-way bearing assembly in the embodiment refers to the smaller damping when rotating in one direction, such as forward rotation, and the larger damping when rotating in the opposite direction, such as reverse rotation.

[0054] The female hinge 1 is provided with an opening 11 for accommodating the sub hinge 2 and a plurality of female mounting holes 14 for mounting, the opening 11 is provided with a first female shaft hole 12 and a second female shaft hole 13 on both sides, and the first female shaft hole 12 and the second female shaft hole 13 are arranged on the same straight line. The plurality of female mounting holes 14 are not on the same straight line.

[0055] The installation directions of the first one-way bearing assembly 4 and the second one-way bearing assembly 5 are opposite, which means that the rotational damping directions are opposite. The first one-way bearing assembly 4 includes a first one-way bearing 41 located in the first female shaft hole 12 and sleeved on one end of the rotating shaft 3, two first stop pieces 43 sleeved on the rotating shaft 3 and located outside the first one-way bearing 41, two first elastic pieces 44 located between the two first stop pieces 43, and a first nut 45 provided outside one of the first stop pieces 43 and fixed with the rotating shaft 3. The first elastic piece 44 is a butterfly-shaped elastic piece, which provides a continuous damping force for the first one-way bearing 41, and the size of the rotational damping between the first one-way bearing assembly 4 can be adjusted through the first nut 45.

[0056] A first limiting structure for limiting the rotation of the first one-way bearing sleeve during work is arranged between the first one-way bearing 41 and the first female shaft hole 12, the first limiting structure includes a first female shaft hole positioning groove 121 provided in the first female shaft hole 12 and a first one-way bearing positioning groove 411 provided in the first one-way bearing 12, and a first stop pin 42 provided between the first female shaft hole positioning groove 121 and the first one-way bearing positioning groove 411.

[0057] The second one-way bearing assembly 5 includes a second one-way bearing 51 located in the second mother shaft hole 13 and sleeved on one end of the rotating shaft 3 in the opposite direction of the first one-way bearing 41, two second stoppers 53 sleeved on the rotating shaft 3 and located on the outside of the second one-way bearing 51, two second elastic pieces 54 located between the two second stoppers 53, and a second nut 55 provided on the outside of a second stopper 53 and fixed to the rotating shaft 3. The second elastic piece 54 is a butterfly-shaped elastic piece, which provides continuous damping force for the second one-way bearing 51, and the rotational damping size between the second one-way bearing assembly 5 can be adjusted by the second nut 55.

[0058] A second limiting structure is provided between the second one-way bearing 51 and the second female shaft hole 13 to limit rotation of the second one-way bearing sleeve during operation. This second limiting structure includes a second female shaft hole locating groove 131 provided on the second female shaft hole 13, a second one-way bearing locating groove 511 provided on the second one-way bearing 51, and a second stop pin 52 provided between the second female shaft hole locating groove 131 and the second one-way bearing locating groove 511. The first limiting structure and the second limiting structure share the same limiting principle.

[0059] The second stop pins 52 are identical in number to the first stop pins 42, and are identical in number to the second one-way bearing locating groove 511, the second mother shaft hole locating groove 131, the first one-way bearing locating groove 411, and the first mother shaft hole locating groove 121, respectively, and their positions correspond. That is, after installation, any one of the stop pins cooperates with one of the mother shaft hole locating grooves and one of the one-way bearing locating grooves to secure the one-way bearing sleeve. The number of the first one-way bearing locating grooves can be set as needed, and can be one, two, or more. In this embodiment, three are used, and they are evenly distributed along the circumference of the first one-way bearing 41. Similarly, the second one-way bearing locating grooves can also be configured as described above.

[0060] The number of the first one-way bearing 41 and the second one-way bearing 51 can be set to one, two or more respectively. When there are two or more respectively, each first one-way bearing 41 is serially sleeved on the rotating shaft 3 in the same direction, and each second one-way bearing 51 is serially sleeved on the other end of the rotating shaft 3 in the same direction, and each first one-way bearing 41 is in opposite directions to each second one-way bearing 51.

[0061] Because the rotating shaft 3 is equipped with one-way bearing assemblies in opposite directions, the damping at both ends of the rotating shaft 3 can be adjusted separately for forward and reverse rotation, allowing for tailored damping to suit different application scenarios. When used on a door, proper adjustment increases the damping during closing and provides an appropriate damping during opening. This provides wind protection and prevents pinching while maintaining a stable opening, making it widely used for objects requiring rotational movement. Furthermore, when damping is required, the damping between the stop pin and the rotating shaft can be adjusted, achieving adjustable damping to better suit different user needs.

[0062] As needed, the rotating shaft 3 is provided with a gasket 7 between the two ends of the sub-shaft hole 21 and the first mother shaft hole 12 and the second mother shaft hole 13. The ends of the first stop needle 42 and the second stop needle 52 can be respectively adjusted with the pressure of the gasket 7, and the damping size of the rotating shaft 3 and the mother hinge can be realized when the rotating shaft 3 rotates, realizing multiple adjustments and having a better adaptability range.

[0063] like Figure 1 -4, the present invention also provides an embodiment of a rotary switch device.

[0064] The rotary switch device includes a sub-hinge with reverse adjustable damping, and the sub-hinge with forward and reverse adjustable damping includes a sub-hinge 2 and a main hinge 1, and a damping shaft mechanism arranged between the sub-hinge 2 and the main hinge 1, and the damping shaft mechanism includes a shaft 3 fixed to the sub-hinge 2, and the two ends of the shaft 3 are respectively located at the first main shaft hole 12 and the second main shaft hole 13 on the main hinge 1, and the two ends of the shaft 3 are respectively fixed with a first one-way bearing assembly 4 and a second one-way bearing assembly 5, and the first one-way bearing assembly 4 and the second one-way bearing assembly 5 are installed in opposite directions.

[0065] Specifically, the sub-hinge 2 is provided with a fixing hole 21 for securing the rotating shaft 3 and multiple sub-mounting holes 22 for mounting. Each sub-mounting hole 22 is distributed on a different straight line, i.e., it is not arranged on the same straight line. The sub-hinge 2 is also provided with a positioning hole 23 for securing the rotating shaft 3. The rotating shaft 3 is fastened to the sub-hinge 2 by a fixing pin 6 that cooperates with the positioning hole 23. As needed, the rotating shaft 3 and the sub-hinge 2 are maintained in a relatively static state, i.e., no rotational displacement occurs between the rotating shaft 3 and the sub-hinge 2 during operation. Achieving no rotational displacement between the rotating shaft 3 and the sub-hinge 2 can also be achieved by other means, such as configuring the fixing hole 21 as a non-circular hole, such as a square hole, with the cross-section of the rotating shaft 3 matching the square hole.

[0066] The female hinge 1 is provided with a notch 11 for receiving the sub-hinge 2 and a plurality of female mounting holes 14 for mounting. A first female shaft hole 12 and a second female shaft hole 13 are respectively provided on either side of the notch 11. The first female shaft hole 12 and the second female shaft hole 13 are arranged on the same straight line. The plurality of female mounting holes 14 are not arranged on the same straight line.

[0067] The first one-way bearing assembly 4 and the second one-way bearing assembly 5 are installed in opposite directions, which means that the rotational damping directions are opposite. The first one-way bearing assembly 4 comprises a first one-way bearing 41 located in the first female shaft hole 12 and sleeved on one end of the rotating shaft 3, two first stop pieces 43 sleeved on the rotating shaft 3 and located outside the first one-way bearing 41, two first elastic pieces 44 located between the two first stop pieces 43, and a first nut 45 located outside one of the first stop pieces 43 and fixed to the rotating shaft 3. The first elastic piece 44 is a butterfly-shaped elastic piece, which provides a continuous damping force for the first one-way bearing 41, and the size of the rotational damping between the first one-way bearing 41 and the first female shaft hole 12 can be adjusted through the first nut 45.

[0068] A first limiting structure is arranged between the first one-way bearing 41 and the first female shaft hole 12 to limit the rotation of the first one-way bearing sleeve during work. The first limiting structure comprises a first female shaft hole positioning groove 121 arranged on the first female shaft hole 12, a first one-way bearing positioning groove 411 arranged on the first one-way bearing 12, and a first stop needle 42 arranged between the first female shaft hole positioning groove 121 and the first one-way bearing positioning groove 411.

[0069] The second one-way bearing assembly 5 comprises a second one-way bearing 51 located in the second female shaft hole 13 and sleeved on one end of the rotating shaft 3 in the opposite direction of the first one-way bearing 41, two second stop pieces 53 sleeved on the rotating shaft 3 and located outside the second one-way bearing 51, two second elastic pieces 54 located between the two second stop pieces 53, and a second nut 55 located outside one of the second stop pieces 53 and fixed to the rotating shaft 3. The second elastic piece 54 is a butterfly-shaped elastic piece, which provides a continuous damping force for the second one-way bearing 51, and the size of the rotational damping between the second one-way bearing 51 and the second female shaft hole 13 can be adjusted through the second nut 55.

[0070] A second limiting structure is arranged between the second one-way bearing 51 and the second female shaft hole 13 to limit the rotation of the second one-way bearing sleeve during work. The second limiting structure comprises a second female shaft hole positioning groove 131 arranged on the second female shaft hole 13, a second one-way bearing positioning groove 511 arranged on the second one-way bearing 51, and a second stop needle 52 arranged between the second female shaft hole positioning groove 131 and the second one-way bearing positioning groove 511. The first limiting structure and the second limiting structure have the same limiting principle.

[0071] The second stop pins 52 are identical in number to the first stop pins 42, and are identical in number to the second one-way bearing locating groove 511, the second mother shaft hole locating groove 131, the first one-way bearing locating groove 411, and the first mother shaft hole locating groove 121, respectively, and their positions correspond. That is, after installation, any one of the stop pins cooperates with one of the mother shaft hole locating grooves and one of the one-way bearing locating grooves to secure the one-way bearing sleeve. The number of the first one-way bearing locating grooves can be set as needed, and can be one, two, or more. In this embodiment, three are used, and they are evenly distributed along the circumference of the first one-way bearing 41. Similarly, the second one-way bearing locating grooves can also be configured as described above.

[0072] The number of the first one-way bearing 41 and the second one-way bearing 51 can be set to one, two or more respectively. When there are two or more respectively, each first one-way bearing 41 is serially sleeved on the rotating shaft 3 in the same direction, and each second one-way bearing 51 is serially sleeved on the other end of the rotating shaft 3 in the same direction, and each first one-way bearing 41 is in opposite directions to each second one-way bearing 51.

[0073] Because the shaft 3 is equipped with one-way bearing assemblies in opposite directions, the damping at both ends of the shaft 3 can be adjusted separately to achieve forward and reverse rotation, allowing the damping to be adjusted as needed to better suit different application needs. When used on a door, appropriate adjustment increases the damping when closing the door and provides an appropriate damping when opening the door. This provides wind protection and prevents pinching without affecting door opening, and is widely used on objects that require rotation.

[0074] As needed, the rotating shaft 3 is provided with a gasket 7 between the two ends of the sub-shaft hole 21 and the first mother shaft hole 12 and the second mother shaft hole 13. The ends of the first stop needle 42 and the second stop needle 52 can be respectively adjusted with the pressure of the gasket 7, and the damping size of the rotating shaft 3 and the mother hinge can be realized when the rotating shaft 3 rotates, realizing multiple adjustments and having a better adaptability range.

[0075] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A parent-child hinge with adjustable damping in both directions, comprising a child hinge and a parent hinge, and a damping shaft mechanism provided between the child hinge and the parent hinge, characterized in that: The damping shaft mechanism includes a shaft fixed to the sub-hinge, with the first and second mother shaft holes on the mother hinge at both ends respectively, and a first one-way bearing assembly and a second one-way bearing assembly fixed at both ends of the shaft respectively, and the first one-way bearing assembly and the second one-way bearing assembly are installed in opposite directions, wherein the first one-way bearing assembly includes a first one-way bearing located in the first mother shaft hole and sleeved on one end of the shaft, two first stoppers sleeved on the shaft and located on the outside of the first one-way bearing, and two first elastic pieces located between the two first stoppers, and a spring provided on the outside of the first stopper and fixed to the shaft A first nut for adjusting the size of rotational damping; the second one-way bearing assembly includes a second one-way bearing located in the second mother shaft hole and sleeved on one end of the rotating shaft in the opposite direction of the first one-way bearing, two second stop plates sleeved on the rotating shaft and located on the outside of the second one-way bearing and two spring plates located between the two second stop plates, and a second nut located on the outside of a second stop plate and fixing the size of rotational damping with the rotating shaft. The first nut and the second nut respectively adjust the damping size in different rotation directions at both ends of the rotating shaft, and limiting structures are respectively provided between the first one-way bearing and the first mother shaft hole and the second one-way bearing and the second mother shaft hole.

2. The hinge with adjustable damping in both directions according to claim 1, characterized in that: When the number of the first one-way bearings is two or more, each first one-way bearing is fixed in series at one end of the rotating shaft in the same direction.

3. The hinge with adjustable damping in both forward and reverse directions according to claim 1, characterized in that: The second one-way bearing assembly includes at least one second one-way bearing.

4. The hinge with adjustable damping in both forward and reverse directions according to claim 3, characterized in that: When the number of the second one-way bearings is two or more, each second one-way bearing is fixed in series at the other end of the rotating shaft in the same direction, and each second one-way bearing is in the opposite direction to the first one-way bearing.

5. The hinge with adjustable damping in forward and reverse directions according to claim 1, characterized in that: The limiting structure includes a first mother shaft hole positioning groove provided on the first mother shaft hole and a first one-way bearing positioning groove provided on the first one-way bearing, and a stop pin provided between the first mother shaft hole positioning groove and the first one-way bearing positioning groove; or includes a second mother shaft hole positioning groove provided on the second mother shaft hole and a second one-way bearing positioning groove provided on the second one-way bearing, and a stop pin provided between the second mother shaft hole positioning groove and the second one-way bearing positioning groove.

6. The hinge with adjustable damping in forward and reverse directions according to claim 5, characterized in that: The first mother shaft hole locating grooves and the first one-way bearing locating grooves are the same in number and located in correspondence with each other, and the second mother shaft hole locating grooves and the second one-way bearing locating grooves are the same in number and located in correspondence with each other.

7. The hinge with adjustable damping in forward and reverse directions according to claim 6, characterized in that: The number of the first one-way bearing positioning grooves is three, which are evenly distributed in the circumferential direction of the first one-way bearing; the number of the second one-way bearing positioning grooves is three, which are evenly distributed in the circumferential direction of the second one-way bearing.

8. The hinge with adjustable damping in forward and reverse directions according to claim 1, characterized in that: The first female shaft hole and the second female shaft hole are located on the same straight line.

9. The hinge with adjustable damping in forward and reverse directions according to claim 1, characterized in that: The sub-hinge is provided with a sub-shaft hole for installing the rotating shaft, and the sub-shaft hole is provided with a fixing pin for fixing the rotating shaft.

10. The hinge with adjustable damping in forward and reverse directions according to claim 1, characterized in that: The rotating shaft is provided with gaskets between the two ends of the sub-shaft hole and the first mother shaft hole and the second mother shaft hole.

11. A rotary switch device, comprising a hinge, characterized in that: The parent-child hinge has the parent-child hinge with adjustable damping in forward and reverse directions as claimed in any one of claims 1 to 10.

Images