CN-118257780-B - Rotating shaft mechanism and foldable equipment

Abstract

The embodiment of the application provides a rotating shaft mechanism and foldable equipment. The rotating shaft mechanism comprises a main shaft, a connecting rod, a fixing frame and a supporting plate, wherein the main shaft is used as a fixed component, the connecting rod, the fixing frame and the supporting plate are used as movable components to jointly form a connecting rod sliding block mechanism, the connecting rod is slidably arranged on the fixing frame, the connecting rod is pivoted on the main shaft, and two ends of the supporting plate are respectively pivoted on the main shaft and the fixing frame. When the fixing frames positioned on the two sides of the main shaft rotate, the connecting rod and the supporting plate can be driven to rotate, so that the switching of the rotating shaft mechanism between the flattening state and the closing state is realized. The connecting rod sliding block mechanism in the rotating shaft mechanism has only three movable components, four low pairs are needed, the high pairs are not needed, the parts are fewer, the structure is simple, the reliability is good, and the cost is lower. When the rotating shaft mechanism is switched to a closed state, a screen accommodating space is formed between the supporting plates on two sides of the main shaft and the main shaft so as to accommodate the water drop-shaped bending part of the flexible screen during folding. The hinge mechanism, the first housing, the second housing, and the flexible screen combine to form a foldable device.

Inventors

• WANG XU
• ZHAO MENGLONG
• GONG LEXING
• ZOU LIN
• YUAN SHENGLAN
• LIU SENXIN
• LIU ZHUANG

Assignees

• 华为技术有限公司

Dates

Publication Date

20260508

Application Date

20221226

Claims (20)

1. 1. The rotating shaft mechanism is characterized by comprising a main shaft, a plurality of connecting rods, a fixing frame and a supporting plate, wherein the fixing frame is arranged in pairs; One or more connecting rods are respectively arranged at two sides of the main shaft along the axial direction perpendicular to the main shaft, and one end of each connecting rod is pivoted on the main shaft; Each pair of fixing frames are respectively arranged at two sides of the main shaft along the axial direction perpendicular to the main shaft, the fixing frames positioned at the same side of the main shaft are correspondingly arranged with the connecting rods, and the connecting rods are connected to the fixing frames corresponding to the connecting rods in a sliding manner; Each pair of supporting plates are respectively arranged at two sides of the main shaft along the axial direction perpendicular to the main shaft, and the supporting plates positioned at the same side of the main shaft are correspondingly arranged with the fixing frame; the fixing frames positioned on two sides of the main shaft can rotate relative to the main shaft so as to enable the rotating shaft mechanism to be switched between a flattened state and a closed state; in the process that the rotating shaft mechanism is switched from the flattening state to the closing state, the fixing frames positioned on the two sides of the main shaft rotate in opposite directions, and the fixing frames drive the connecting rods corresponding to the fixing frames and the supporting plates to rotate so that screen accommodating spaces are formed between the supporting plates positioned on the two sides of the main shaft and the main shaft.
2. 2. The rotating shaft mechanism according to claim 1, wherein the fixing frames located at both sides of the main shaft rotate backward in the process of switching the rotating shaft mechanism from the closed state to the flattened state, and the fixing frames drive the connecting rods and the supporting plates corresponding to the fixing frames to rotate so that the supporting plates located at both sides of the main shaft are flush and can cover one side of the main shaft.
3. 3. The spindle assembly of claim 1 wherein the pivot axes of the links on opposite sides of the spindle are symmetrically disposed on opposite sides of the pivot axis of the pair of support plates on the spindle.
4. 4. The spindle mechanism according to claim 1, wherein when the spindle mechanism is in the closed state, the links are located on a side of the support plate opposite to the Rong Bing space corresponding to the links, and a pitch of pivot axes of the links located on both sides of the spindle is larger than a pitch of the support plates arranged in pairs near the spindle.
5. 5. The spindle mechanism of claim 1, wherein the link and the spindle are pivotally connected; or, the connecting rod is in virtual shaft connection with the main shaft.
6. 6. The spindle mechanism of any one of claims 1 to 5, wherein the mount has a first sliding portion and the link corresponding to the mount has a second sliding portion, the first and second sliding portions being slidably engaged to slidably connect the link to the mount.
7. 7. The spindle mechanism of claim 6, wherein the first sliding portion is a guide groove provided on the fixing frame, the second sliding portion is a guide arm provided on the connecting rod, and the guide arm is slidably mounted in the guide groove; Or, the first sliding part is a guide arm arranged on the fixing frame, the second sliding part is a guide groove arranged on the connecting rod, and the guide arm is slidably arranged in the guide groove.
8. 8. The spindle mechanism of any one of claims 1 to 5, wherein each support plate has one or more first arcuate arms, the spindle has one or more first arcuate slots corresponding to one or more of the first arcuate arms, and one or more of the first arcuate arms is slidably mounted in one or more of the first arcuate slots to pivotally connect the support plate to the spindle; or, the supporting plate and the main shaft are in pivot connection.
9. 9. The spindle apparatus according to any one of claims 1 to 5, wherein each of the support plates has one or more second arcuate arms, the mount has one or more second arcuate slots corresponding to the one or more second arcuate arms, and the one or more second arcuate arms are slidably mounted to the one or more second arcuate slots corresponding to the one or more second arcuate arms to pivotally connect the support plates to the mount; Or, the supporting plate is in pivot connection with the fixing frame.
10. 10. A spindle assembly according to any one of claims 1 to 5, further comprising a synchronizing assembly provided on the spindle for enabling synchronized counter rotation of the links on either side of the spindle.
11. 11. The spindle apparatus of claim 10 wherein the synchronizing assembly includes first gears secured in correspondence with the links on either side of the spindle, the pivot axis of each link coinciding with the axis of the first gear corresponding to the link, the first gears on either side of the spindle being in driving engagement.
12. 12. The spindle mechanism of claim 11 wherein the synchronizing assembly further comprises an even number of sequentially engaged second gears, the first gears on either side of the spindle being driven by the even number of second gears.
13. 13. The spindle mechanism of claim 12 wherein the second gears are single gears; or, two second gears are duplex gears, each duplex gear comprises a first tooth part and a second tooth part which are coaxially arranged, the first gears positioned on two sides of the main shaft are correspondingly meshed with the first tooth parts in the duplex gears, and the second tooth parts in the two duplex gears are meshed.
14. 14. A spindle mechanism according to claim 12 or claim 13, further comprising a damping assembly mounted to the spindle for providing a damping force to the link as the link rotates relative to the spindle.
15. 15. The spindle mechanism of claim 14 wherein the ends of the plurality of first gears have first cam portions, the damping assembly including a first integral cam movable relative to the first cam portions in the axial direction of the first gears, the first integral cam having second cam portions engageable with the first cam portions, and a first resilient member operable on the first integral cam to urge the second cam portions toward the first cam portions.
16. 16. The spindle assembly of claim 15 wherein said damping assembly further comprises a bracket and a first lever coaxially coupled to said first gear, said bracket being secured to said spindle, said first lever being mounted on said bracket at opposite ends thereof, said first integral cam being slidably mounted on said first lever.
17. 17. The spindle mechanism of claim 16 wherein the number of first integral cams and first resilient members is one, each of the first gears having one of the first cam portions; Or, the number of the first connecting cams and the number of the first elastic pieces are two, each first gear is provided with two first cam parts which are distributed in a back-to-back mode, and a group of first connecting cams and the first elastic pieces are respectively arranged on two sides of the axis direction of each first gear.
18. 18. The spindle apparatus of claim 16 or 17, wherein the damping assembly further comprises a second integral cam and a single cam disposed in corresponding spaced relation to the first cam portion, the second integral cam being slidably mounted on the first lever, the single cam being in synchronous rotational connection with the first lever; The first elastic piece is arranged between the first connecting cam and the second connecting cam in a compressed mode, the first elastic piece is sleeved outside the first rod, and the first elastic piece can act on the second connecting cam to press the third cam portion to the single cam.
19. 19. The spindle mechanism of claim 18, wherein the damping assembly further comprises a hover cam, a second spring, and a second lever, the second gear, the hover cam, and the second lever being respectively in synchronous rotational connection, the second conjoined cam having a fourth cam portion at a location corresponding to at least one of the second gears, the fourth cam portion and the hover cam being correspondingly engageable; The second elastic piece is arranged between the first connecting cam and the hovering cam in a compressed mode, the second elastic piece is sleeved outside the second rod, and the second elastic piece can act on the hovering cam to press the hovering cam to the fourth cam part.
20. 20. The spindle mechanism of claim 16 or 17, wherein the damping assembly further comprises a hover cam, a second spring, and a second lever, the second gear, the hover cam, and the second lever being respectively in synchronous rotational connection, the first integral cam having a fifth cam portion at a location corresponding to at least one of the second gears, the fifth cam portion and the hover cam being correspondingly engageable; the second elastic piece is arranged between the bracket and the hovering cam in a compressed mode, the second elastic piece is sleeved outside the second rod, and the second elastic piece can act on the hovering cam to press the hovering cam to the fifth cam part.

Description

Rotating shaft mechanism and foldable equipment Technical Field The embodiment of the application relates to the technical field of foldable equipment, in particular to a rotating shaft mechanism and the foldable equipment. Background Foldable devices (such as foldable flexible screen mobile phones) can be unfolded and folded through a rotating shaft mechanism in the middle of the foldable device. The rotating shaft mechanism is divided into a U-shaped rotating shaft mechanism and a drop-shaped rotating shaft mechanism according to the shape of the flexible screen in the closed state. As shown in fig. 1 (a), the U-shaped rotating shaft mechanism 10' has a simple structure and low cost, and a gap 21 exists between the two shells 20' in the closed state, so that the maximum thickness L1 of the whole machine is large, and sundries easily enter the gap 21 to damage the flexible screen 30 '. As shown in fig. 1 (b), the drop-shaped spindle mechanism 10 is relatively complex in structure and relatively costly, and the two housings 20 are stacked in a closed state, with a small overall thickness L2. The traditional drop-shaped rotating shaft mechanism has more parts, complex structure and higher cost. Disclosure of Invention The embodiment of the application provides a rotating shaft mechanism and foldable equipment, which solve the problems of more parts and complex structure of the traditional rotating shaft mechanism. The embodiment of the application adopts the following technical scheme: in a first aspect, an embodiment of the present application provides a spindle mechanism including a main shaft, a plurality of links, a pair-wise arranged fixing frame, and a pair-wise arranged support plate. One or more connecting rods are respectively arranged at two sides of the main shaft along the axial direction perpendicular to the main shaft, and one end of each connecting rod is pivoted on the main shaft. Each pair of fixing frames are respectively arranged on two sides of the main shaft along the axial direction perpendicular to the main shaft, the fixing frames positioned on the same side of the main shaft are correspondingly arranged with the connecting rods, and the connecting rods are connected onto the fixing frames corresponding to the connecting rods in a sliding manner. Each pair of support plates are respectively arranged on two sides of the main shaft along the axial direction perpendicular to the main shaft, and the support plates positioned on the same side of the main shaft are correspondingly arranged with the fixing frame. One end of each supporting plate is pivoted on the main shaft, and the other opposite end is pivoted on a fixing frame corresponding to the supporting plate. The connecting rod and the supporting plate which are positioned on the same side of the main shaft are respectively spaced on the pivot axis of the main shaft. The fixing frames positioned on two sides of the main shaft can rotate relative to the main shaft so as to enable the rotating shaft mechanism to be switched between a flattened state and a closed state. In the process that the rotating shaft mechanism is switched from the flattening state to the closing state, the fixing frames positioned at the two sides of the main shaft rotate in opposite directions, and the fixing frames drive the connecting rods and the supporting plates corresponding to the fixing frames to rotate, so that a screen accommodating space is formed between the supporting plates positioned at the two sides of the main shaft and the main shaft. The rotating shaft mechanism provided by the embodiment of the application has the advantages that the main shaft is used as a fixed component, the connecting rod, the fixed frame and the supporting plate are used as movable components to jointly form the connecting rod sliding block mechanism, the connecting rod is slidably arranged on the fixed frame, the connecting rod is pivoted on the main shaft, and two ends of the supporting plate are respectively pivoted on the main shaft and the fixed frame. When the fixing frames positioned on the two sides of the main shaft rotate, the connecting rod and the supporting plate can be driven to rotate, so that the switching of the rotating shaft mechanism between the flattening state and the closing state is realized. The connecting rod sliding block mechanism in the rotating shaft mechanism has only three movable components, four low pairs are needed, the high pairs are not needed, the parts are fewer, the structure is simple, the reliability is good, and the cost is lower. When the rotating shaft mechanism is switched to a closed state, a screen accommodating space is formed between the supporting plates on two sides of the main shaft and the main shaft so as to accommodate the water drop-shaped bending part of the flexible screen during folding. In an alternative implementation, the spindle is in the form of a flat bar. The main shaft is provided with a containing gro