Shaft assembly, rotating mechanism and terminal equipment

Abstract

The present application provides a shaft assembly, a rotating mechanism and a terminal device. The shaft assembly includes a shaft, a rotating member, an adjusting member and a friction guide column. The rotating member includes a sleeve rotatably mounted on the outside of the shaft. The adjusting member is rotatably mounted in the shaft along a first direction. The adjusting member is provided with an abutment top at one end facing the shaft, and the outer size of the abutment top gradually decreases from the end away from the shaft toward the end of the shaft. The friction guide column is arranged on the shaft along a second direction, and the second direction is different from the first direction. One end of the friction guide column is adapted to the outer shape of the abutment top, and the other end abuts the shaft sleeve. The adjusting member cooperates with the friction guide column so that the adjusting member gradually presses the friction guide column against the shaft sleeve along the second direction in the process of rotating into the shaft. The torque of the shaft assembly is adjustable and can be adjusted at any time during use.

Description

Technical Field

[0001] The present application relates to the field of rotating connection structures, and in particular to a rotating shaft assembly, a rotating mechanism and a terminal device. Background Art

[0002] Many current products, such as laptops, foldable phones, smart watches, and head-mounted display devices, have rotational freedom and need to achieve relative rotation of the two parts to achieve functions such as folding / unfolding, closing / opening, and rotating angles. For example, the keyboard and display parts of a laptop computer need to be connected by a rotating mechanism to achieve unfolding or folding. Existing rotating mechanisms cannot dynamically adjust torque, or it is difficult for users to adjust it by themselves. In addition, since the friction parts will be lost during the rotation of the shaft, its torque will be reduced. For non-adjustable shafts, when the torque is less than a certain threshold, the shaft function will fail. Summary of the invention

[0003] In order to solve the above-mentioned problem, the present application provides a shaft assembly capable of dynamically adjusting torque, a rotating mechanism including the shaft assembly, and a terminal device including the rotating mechanism.

[0004] The present application provides a rotating shaft assembly, including a shaft, a rotating member, an adjusting member and a friction guide column, wherein the axial direction of the shaft is defined as a first direction. The rotating member includes a sleeve, which is rotatably sleeved on the outside of the shaft. The adjusting member is rotatably arranged in the shaft along the first direction, and the adjusting member is provided with an abutment top at one end facing the shaft, and the outer size of the abutment top gradually decreases from the end away from the shaft toward the end of the shaft. The second direction is different from the first direction, and one end of the friction guide column is adapted to the outer shape of the abutment top, and the other end abuts the sleeve. The cooperation between the adjusting member and the friction guide column enables the adjusting member to gradually press the friction guide column against the sleeve along the second direction in the direction away from the shaft during the process of rotating into the shaft.

[0005] In a possible implementation manner, a matching groove is recessed inwardly provided at one end of the friction guide column facing the adjusting member, and an inner surface of the matching groove matches a surface of the abutting top portion.

[0006] In a possible implementation manner, the abutting top portion is a conical portion, and a diameter of the conical portion gradually increases from a side close to the friction guide column toward a side away from the friction guide column, and the first direction and the second direction are perpendicular to each other.

[0007] In a possible implementation manner, the adjusting member further includes a threaded portion connected to one end of the abutting top portion;

[0008] Along the first direction, the shaft is provided with a matching hole, in which a thread matching the threaded portion is provided, and the adjusting member is rotatably disposed in the matching hole.

[0009] In a possible implementation manner, the friction guide column includes a main column portion and limiting ribs provided on opposite sides of the main column portion;

[0010] The shaft member is provided with a limiting hole along the second direction, and the limiting hole is communicated with the matching hole; the limiting hole includes a main body hole portion and a limiting groove, the main body column portion is arranged in the main body hole portion, and the limiting rib is arranged in the limiting groove.

[0011] In a possible implementation manner, a limiting hole is respectively provided at two opposite ends of the shaft along the second direction, the two limiting holes are connected to the matching hole to pass through the shaft, and a friction guide column is provided in each limiting hole.

[0012] In a possible implementation manner, the rotating member includes a rotating block and a swing arm, one end of the swing arm is connected to the rotating block, and the other end of the swing arm is provided with two sleeves at intervals, each sleeve is provided with a through hole extending through the first direction, and the shaft member is provided in the through hole;

[0013] The adjusting member further comprises a nut at one end away from the abutting top portion, and a diameter of the nut is greater than a diameter of the through hole.

[0014] The present application also provides a rotating mechanism, including a fixed plate and the above-mentioned rotating shaft assembly, the shaft member includes a connected rotating part and a mounting part, the mounting part is connected to one axial end of the rotating part, the sleeve is rotatably mounted outside the rotating part, and the mounting part is connected to the fixed plate so that the rotating member can rotate relative to the fixed plate.

[0015] In a possible implementation manner, the rotating mechanism further includes a fixing member;

[0016] The fixing plate includes an ear portion, and the ear portion is penetrated by an opening;

[0017] The mounting portion is provided with a slot along the first direction, and a mounting hole is provided through the mounting portion along the second direction, and the mounting hole is connected with the slot;

[0018] The ear portion is arranged in the slot, and the fixing member passes through the mounting hole and the slot to connect the mounting portion to the ear portion.

[0019] The present application also provides a terminal device, comprising a first part, a second part and the above-mentioned rotating mechanism, wherein the fixing plate is connected to the first part, and the rotating member is connected to the second part, so that the first part rotates relative to the second part.

[0020] Compared with the prior art, the shaft assembly provided by the present application is provided with a friction guide column and an adjustment member in the shaft, and an abutment top is provided at the end of the adjustment member, and the outer size of the abutment top is gradually reduced from the end away from the shaft member toward the end of the shaft member. The two ends of the friction guide column cooperate with the abutment top and the sleeve respectively, and by adjusting and rotating the adjustment member to screw into the shaft member, a component force along the second direction can be provided to the friction guide column, so that interference is generated between the friction guide column and the sleeve, and the friction force changes, thereby realizing dynamic adjustment of the torque of the shaft assembly. And the torque of the rotating mechanism can be adjusted at any time during use, so as to further improve the delivery yield of the product. In addition, the rotating mechanism has a simple structure, is easy to assemble, and each component is easy to mass produce. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of a rotating mechanism according to an embodiment of the present application.

[0023] Figure 2 for Figure 1 An exploded schematic diagram of the rotating mechanism is shown.

[0024] Figure 3 for Figure 2 An enlarged schematic diagram of the partial structure of the rotating mechanism is shown.

[0025] Figure 4 for Figure 1 A partially exploded schematic diagram of the rotating mechanism shown.

[0026] Figure 5 for Figure 1 A partial cross-sectional view of a portion of the rotating mechanism shown.

[0027] Figure 6 A schematic diagram of the structure of a terminal device according to an embodiment of the present application.

[0028] Figure 7 This is a schematic diagram of the structure of a terminal device according to another embodiment of the present application.

[0029] Main component symbols

[0030] Rotating mechanism 200

[0031] Rotating shaft assembly 100

[0032] Rotating member 10

[0033] Rotating block 11

[0034] Swing arm 12

[0035] Bushing 13

[0036] Through hole 131

[0037] Shaft 20

[0038] Rotating unit 21

[0039] Mounting section 22

[0040] Matching hole 23

[0041] Limit hole 24

[0042] Main body hole 241

[0043] Limiting slot 242

[0044] Slot 25

[0045] Mounting holes 26

[0046] Adjustment 30

[0047] Nut 31

[0048] Threaded portion 32

[0049] Reach top 33

[0050] Cone 331

[0051] Friction guide 40

[0052] Main column 41

[0053] Limiting rib 42

[0054] Matching groove 43

[0055] Fixed plate 50

[0056] Main body plate 51

[0057] Ear 52

[0058] Opening 53

[0059] Fixing 60

[0060] First direction Y1

[0061] Second direction Y2

[0062] The third direction Y3

[0063] Terminal device 300, 400

[0064] Part I 310, 410

[0065] Part II 320, 420 DETAILED DESCRIPTION

[0066] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0067] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a centered element at the same time. When an element is considered to be "set on" another element, it may be directly set on the other element or there may be a centered element at the same time. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0068] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0069] Some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and technical features in the embodiments can be combined with each other.

[0070] Figure 1-Figure 5 A rotating mechanism 200 of the present embodiment is shown, the torque of which is adjustable and can be adjusted at any time during use, and can be widely used in notebook computers, foldable mobile phones, Bluetooth headset boxes, head-mounted display devices, etc.

[0071] See also Figure 1 and Figure 2The rotating mechanism 200 provided in this embodiment includes a rotating shaft assembly 100, a fixing plate 50 and a fixing member 60. The rotating shaft assembly 100 includes a rotating member 10, two shaft members 20, two adjusting members 30 and a plurality of friction guide posts 40.

[0072] One end of the shaft member 20 is connected to the fixed plate 50 through the fixing member 60 and serves as the rotating shaft of the rotating member 10. The rotating member 10 is rotatably connected to the shaft member 20, thereby realizing rotation relative to the fixed plate 50. The friction guide post 40 is disposed in the shaft member 20, and one end is connected to the adjusting member 30, and the other end is connected to the rotating member 10.

[0073] See also Figure 2 and Figure 3 , a first direction Y1, a second direction Y2 and a third direction Y3 which are perpendicular to each other are defined in the rotating mechanism 200. Among them, the shaft member 20 has an axis of symmetry, and the axial direction of the shaft member 20 is defined as the first direction Y1. The rotating member 10 includes a rotating block 11, a swing arm 12 and two sleeves 13. One end of the swing arm 12 is connected to the rotating block 11, and the other end is provided with two spaced sleeves 13. Along the first direction Y1, the two sleeves 13 are respectively provided with corresponding through holes 131. The shaft member 20 includes a connected rotating portion 21 and a mounting portion 22 connected to the rotating portion 21. The rotating portion 21 is rotatably arranged in the through hole 131 so that the sleeve 13 rotates around the rotating portion 21, thereby realizing the relative rotation connection between the rotating member 10 and the shaft member 20.

[0074] A matching hole 23 is provided in the rotating part 21 along the first direction Y1, and the adjusting member 30 is rotatably provided in the matching hole 23 along the first direction Y1. In this embodiment, the adjusting member 30 is a screw with a conical end. Specifically, the adjusting member 30 includes a nut 31, a threaded portion 32 connected to one side of the nut 31, and a contact portion 33 connected to the side of the threaded portion 32 away from the nut 31. The surface of the threaded portion 32 is provided with a thread, and the matching hole 23 is provided with a thread matching the threaded portion 32, so that the adjusting member 30 can be rotatably screwed into the matching hole 23. Among them, the matching hole 23 is a cylindrical blind hole, which does not penetrate the rotating part 21.

[0075] See also Figure 3 and Figure 4, along the second direction Y2, i.e., the direction perpendicular to the axial direction of the shaft member 20. In this embodiment, the second direction Y2 is the radial direction of the shaft member 20, i.e., along the radial direction of the shaft member 20, two limiting holes 24 are provided at opposite ends of the rotating portion 21 of each shaft member 20. Each limiting hole 24 penetrates the opposite ends of the shaft member 20 along the axial direction, and each limiting hole 24 is used to accommodate a corresponding friction guide post 40. The friction guide post 40 is roughly cylindrical in shape, including a main body column 41 and two limiting ribs 42 arranged on opposite sides of the main body column 41. Correspondingly, the two limiting holes 24 are connected to the matching hole 23 and penetrate the rotating portion 21, and each friction guide post 40 is arranged in a limiting hole 24. Among them, the limiting hole 24 includes a main body hole 241 and limiting grooves 242 arranged on opposite sides of the main body hole 241, and the inner surface of the main body hole 241 is concave to form the limiting groove 242. The main column portion 41 is arranged in the main hole portion 241, and the two limiting ribs 42 are correspondingly arranged in the two limiting grooves 242. Through the clearance fit between the limiting ribs 42 of the friction guide column 40 and the limiting hole 24 of the shaft 20, the friction guide column 40 can be controlled to move only along the second direction Y2, but not along the first direction Y1 and / or the third direction Y3 (i.e., it cannot rotate), thereby ensuring normal assembly. Among them, when the limiting ribs 42 and the limiting hole 24 are clearance-matched, the single-side clearance is about 0.05mm.

[0076] In this embodiment, the abutting portion 33 is a conical portion having a conical surface 331 . The diameter of the conical portion gradually increases from a side close to the friction guide pillar 40 toward a side away from the friction guide pillar 40 .

[0077] See also Figure 3 and Figure 5 Each friction guide post 40 has a concave end facing the shaft 20 and a matching groove 43 formed therein. The bottom surface of the matching groove 43 is an arc surface and is matched and connected with the conical surface 331 of the abutting top 33. The adjusting member 30 is rotated and screwed into the matching hole 23, and the abutting top 33 is pushed into the matching groove 43. The end of the friction guide post 40 that is away from the matching groove 43 protrudes out of the surface of the shaft 20 and abuts against the sleeve 13. In the process of rotating the adjusting member 30 into the matching hole 23, the abutting top 33 is screwed into the matching hole 23 along the first direction Y1, and the friction guide post 40 is pushed to extend out of the limiting hole 24 along the second direction Y2, so that the friction guide post 40 applies a pressure F substantially along the second direction Y2 to the inner wall of the sleeve 13. 压力 , the pressure F 压力 The rotation torque can be increased. Since the outer dimension of the abutting portion 33 gradually decreases from the end away from the shaft 20 toward the end of the shaft 20, the force applied by the abutting portion 33 to the friction guide column 40 gradually increases during the process of the adjusting member 30 being screwed into the matching hole 23. 压力 Also gradually increasing.

[0078] Assuming that the friction coefficient between the friction guide pin 40 and the sleeve 13 is μ, the friction force F between the two is 摩擦力 =μF 压力 Since each shaft 20 is provided with two friction guide pins 40 and the two friction guide pins 40 are subjected to the same force, the friction force on one side (one shaft 20) of the rotating mechanism 200 can be recorded as 2F 摩擦力1 or 2F 摩擦力2 , then the total torque in the rotating mechanism 200 (two shafts 20) is N 扭力 =2F 摩擦力1 +2F 摩擦力2 Therefore, by adjusting the screwing degree of the adjusting member 30, the interference amount (i.e., F 摩擦力 ), thereby flexibly adjusting the torque in the entire rotating mechanism 200.

[0079] It can be understood that in other embodiments, the second direction Y2 and the first direction Y1 may not be perpendicular, as long as they are at a certain angle. The number of friction guide pillars 40 can be increased according to actual conditions. The abutting top portion 33 can be in other shapes, for example, it can be a wedge-shaped portion, and the size of the wedge-shaped portion gradually decreases from the end away from the shaft member 20 toward the end of the shaft member 20, as long as it can achieve the process of the adjustment member 30 rotating into the shaft member 20 to gradually press the friction guide pillar 40, so that the friction guide pillar 40 abuts against the sleeve 13 in the direction away from the shaft member along the second direction Y2.

[0080] Please see again Figure 1 , Figure 2 and Figure 3 The fixing plate 50 includes a main plate portion 51 and two ears 52 spaced apart at one end of the main plate portion 51, each ear portion 52 having an opening 53 extending therethrough. Correspondingly, along the first direction Y1, the mounting portion 22 of the shaft member 20 has a slot 25, and the ear portion 52 is disposed in the slot 25. Along the second direction Y2, the mounting portion 22 has a mounting hole 26 extending therethrough, and the mounting hole 26 is connected to the slot 25. The fixing member 60 passes through the mounting hole 26 and the slot 25, thereby fixing the mounting portion 22 to the ear portion 52, so as to achieve a fixed connection between the mounting portion 22 and the fixing plate 50. The slot 25 and the matching hole 23 are not connected to each other.

[0081] During actual assembly, the friction guide pin 40 can be placed in the limiting hole 24 first, and then the sleeve 13 can be sleeved on the shaft member 20, and then the adjustment member 30 can be screwed into the matching hole 23. The nut 31 is generally cylindrical, and the diameter of the nut 31 is larger than the diameter of the through hole 131. Finally, the mounting portion 22 of the shaft member 20 is fixed to the fixing plate 50 through the fixing member 60.

[0082] Compared with the traditional laminated or iron sheet-coated rotating shaft structure, the rotating mechanism 200 provided in the present application is provided with an adjusting member 30 and a friction guide post 40 in the shaft member 20, and the friction guide post 40 and the shaft sleeve 13 are assembled. By adjusting the screwing of the adjusting member 30, the interference amount between the friction guide post 40 and the shaft sleeve 13 can be changed, so that the torque can be dynamically adjusted, and the torque of the rotating mechanism 200 can be adjusted at any time during use, so as to further improve the product delivery yield. In addition, the rotating mechanism 200 has a simple structure, is easy to assemble, and each component is easy to mass produce.

[0083] See also Figure 6 In one embodiment of the present application, a terminal device 300 is provided, comprising a first part 310, a second part 320 and a rotating mechanism 200, wherein the rotating mechanism 200 connects the first part 310 and the second part 320. The rotating member 10 is connected to the second part 320, and the fixing plate 50 is connected to the first part 310. The opening and closing angles of the first part 310 and the second part 320 can be changed by the rotating mechanism 200, and maintained at the opening and closing angles required by the user.

[0084] The specific names of the first part 310 and the second part 320 are related to the use scenario of the rotating mechanism 200. In this embodiment, the terminal device 300 is a laptop computer, the first part 310 can be a keyboard, and the second part 320 can be a display screen. It can be understood that in other embodiments, the first part 310 can be a display screen, and the second part 320 can be a keyboard.

[0085] See also Figure 7 Another embodiment of the present application further provides a terminal device 400, which is a head mounted display device, including a first part 410, a second part 420 and a rotating mechanism 200, wherein the rotating mechanism 200 connects the first part 410 and the second part 420. The rotating member 10 is connected to the second part 420, and the fixing plate 50 is connected to the first part 410. The rotating mechanism 200 can change the flip angle of the second part 420 relative to the first part and maintain the flip angle required by the user.

[0086] The first part 410 may be a headband, and the second part 420 may be a display host. The fixing plate 50 is tilted or vertically arranged, and the display host can also move up and down along the opening 53 .

[0087] It is understood that in other embodiments, the first part 410 may be a display host, and the second part 420 may be a headband. The above is only an example and is not intended to be limiting.

[0088] The above implementation modes are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the above preferred implementation modes, a person skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A rotating shaft assembly, characterized in that: include: A shaft, wherein the axial direction of the shaft is defined as a first direction; The rotating member comprises a shaft sleeve, wherein the shaft sleeve is rotatably sleeved outside the shaft member; An adjusting member is rotatably disposed in the shaft member along a first direction; an abutting top portion is disposed at one end of the adjusting member facing the shaft member, and the outer size of the abutting top portion decreases step by step from the end away from the shaft member toward the end of the shaft member; A friction guide post is arranged on the shaft along a second direction, the second direction is different from the first direction, one end of the friction guide post is conformed to the outer periphery of the abutting top, and the other end abuts against the shaft sleeve; The cooperation between the adjusting member and the friction guide post enables the adjusting member to gradually press the friction guide post against the sleeve along the second direction away from the shaft member during the process of rotating into the shaft member.

2. The shaft assembly according to claim 1, characterized in that: A matching groove is recessed in one end of the friction guide column facing the adjusting member, and the inner surface of the matching groove matches the surface of the abutting top portion.

3. The shaft assembly according to claim 2, characterized in that: The abutting top portion is a conical portion, and the diameter of the conical portion gradually increases from a side close to the friction guide column toward a side away from the friction guide column, and the first direction and the second direction are perpendicular to each other.

4. The shaft assembly according to claim 1, characterized in that: The adjusting member further comprises a threaded portion connected to one end of the abutting top portion; Along the first direction, the shaft is provided with a matching hole, in which a thread matching the threaded portion is provided, and the adjusting member is rotatably disposed in the matching hole.

5. The shaft assembly according to claim 4, characterized in that: The friction guide column includes a main column portion and limiting ribs arranged on opposite sides of the main column portion; The shaft member is provided with a limiting hole along the second direction, and the limiting hole is communicated with the matching hole; the limiting hole includes a main body hole portion and a limiting groove, the main body column portion is arranged in the main body hole portion, and the limiting rib is arranged in the limiting groove.

6. The shaft assembly according to claim 5, characterized in that: The shaft member is provided with a limiting hole at two opposite ends along the second direction, respectively. The two limiting holes are connected to the matching hole to penetrate the shaft member, and a friction guide column is provided in each limiting hole.

7. The shaft assembly according to claim 1, characterized in that: The rotating member comprises a rotating block and a swing arm, one end of the swing arm is connected to the rotating block, and the other end of the swing arm is provided with two sleeves at intervals, each sleeve is provided with a through hole along the first direction, and the shaft member is provided in the through hole; The adjusting member further comprises a nut at one end away from the abutting top portion, and a diameter of the nut is greater than a diameter of the through hole.

8. A rotating mechanism, characterized in that: include: Fixed plate; The rotating shaft assembly according to any one of claims 1-7; the shaft member includes a connected rotating portion and a mounting portion, the mounting portion is connected to one axial end of the rotating portion, the sleeve is rotatably mounted outside the rotating portion, and the mounting portion is connected to the fixed plate so that the rotating member can rotate relative to the fixed plate.

9. The rotating mechanism according to claim 8, characterized in that: The rotating mechanism further comprises a fixing member; the fixing plate comprises an ear portion, and the ear portion is penetrated by an opening; The mounting portion is provided with a slot along the first direction, and a mounting hole is provided through the mounting portion along the second direction, and the mounting hole is connected with the slot; The ear portion is arranged in the slot, and the fixing member passes through the mounting hole and the slot to connect the mounting portion to the ear portion.

10. A terminal device, characterized in that: include: A first part, a second part and a rotating mechanism as described in any one of claims 8 to 9; The fixing plate is connected to the first part, and the rotating member is connected to the second part, so that the first part can rotate relative to the second part.

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