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WO-2026091024-A1 - ROTARY SHAFT MECHANISM AND ELECTRONIC DEVICE

WO2026091024A1WO 2026091024 A1WO2026091024 A1WO 2026091024A1WO-2026091024-A1

Abstract

A rotary shaft mechanism and an electronic device. The rotary shaft mechanism comprises: a base (100), a first rotating member (200), a second rotating member (300), and a sliding member (400). The first rotating member (200) is rotatably fitted with the base (100); one end of the second rotating member (300) rotates around the base (100), and the other end thereof is slidably connected to the first rotating member (200); the sliding member (400) is slidably connected to the base (100) and is located between the first rotating member (200) and the second rotating member (300) in a first direction, and the sliding member (400) is in abutting fit with the first rotating member (200) and the second rotating member (300); and during rotation of the first rotating member (200) around the base (100), the first rotating member (200) drives the sliding member (400) to slide in the first direction, such that the second rotating member (300) rotates around the base (100) and slides relative to the first rotating member (200) in the first direction.

Inventors

  • HUANG, SHENGXIAN
  • DONG, Shaohong
  • CHEN, Ruihao

Assignees

  • 荣耀终端股份有限公司

Dates

Publication Date
20260507
Application Date
20241031

Claims (20)

  1. A rotating shaft mechanism, characterized in that it comprises: Base (100); The first rotating component (200) rotates in conjunction with the base (100); The second rotating member (300) has one end that rotates around the base (100) and the other end that is slidably connected to the first rotating member (200); A sliding member (400) is slidably connected to the base (100) and is located between the first rotating member (200) and the second rotating member (300) along a first direction. The sliding member (400) abuts against the first rotating member (200) and the second rotating member (300) respectively. During the rotation of the first rotating member (200) around the base (100), the first rotating member (200) drives the sliding member (400) to slide along the first direction, so that the second rotating member (300) rotates around the base (100) and slides relative to the first rotating member (200) along the first direction; The first direction is the axial direction of the base (100).
  2. The rotating shaft mechanism according to claim 1 is characterized in that, The first rotating component (200) includes a main swing arm (210) and a connecting block (220); One end of the main swing arm (210) rotates in conjunction with the base (100), and the other end is connected to the connecting block (220); The second rotating member (300) is located on one side of the main swing arm (210) along the first direction and is connected to the connecting block (220); The sliding member (400) is located between the main swing arm (210) and the second rotating member (300) along the first direction. The sliding member (400) rotates in a spiral engagement with the main swing arm (210) and rotates in an arc engagement with the second rotating member (300).
  3. The rotating shaft mechanism according to claim 2 is characterized in that, The main swing arm (210) includes a rotating part (211) and a connecting part (212). The rotating part (211) rotates in cooperation with the base (100), and the connecting part (212) is connected to the connecting block (220). The rotating part (211) includes a first rotating structure (213) and a first helical rotating structure (214). The first rotating structure (213) is configured to rotate in an arc with the base (100), and the first helical rotating structure (214) is configured to rotate in a helical manner with the slider (400).
  4. The rotating shaft mechanism according to claim 3 is characterized in that, The sliding member (400) includes a second helical rotation structure (401) and a second rotation structure (402); The second helical rotation structure (401) and the first helical rotation structure (214) rotate in a helical cooperation, and the second rotation structure (402) is configured to rotate in an arc cooperation with the second rotating member (300); The sliding member (400) is configured to slide along the first direction when the first rotating member (200) rotates around the base (100) under the force of the first helical rotating structure (214) and the second helical rotating structure (401) rotating in a helical manner.
  5. The rotating shaft mechanism according to claim 4 is characterized in that, The second rotating member (300) includes a rotating part (301) and a sliding part (302). The rotating part (301) rotates relative to the base (100), and the sliding part (302) is slidably connected to the connecting block (220). The rotating part (301) includes: a third rotating structure (303), which rotates in an arc with the second rotating structure (402) of the sliding member (400); The second rotating member (300) is configured to be subjected to a force along the first direction when the sliding member (400) slides along the first direction, and slides relative to the connecting block (220) along the first direction.
  6. The rotating shaft mechanism according to claim 5 is characterized in that, The connecting block (220) includes a first groove (221), which is formed by an inwardly recessed first width of the surface of the connecting block (220) facing the base (100); The sliding part (302) of the second rotating member (300) is disposed in the first groove (221). When the second rotating member (300) rotates around the base (100), the sliding part (302) slides in the first direction in the first groove (221).
  7. The rotating shaft mechanism according to claim 6 is characterized in that, The first groove (221) includes a bottom surface (2211) that is away from the base (100); The sliding end (3021) of the sliding part (302) facing away from the base (100) is adjacent to the bottom surface (2211) of the first groove (221).
  8. The rotating shaft mechanism according to claim 7 is characterized in that, The first groove (221) further includes a first sidewall (2212) and a second sidewall (2213) opposite to each other, the first sidewall (2212) and the second sidewall (2213) being connected to the bottom surface (2211) respectively; When the rotating shaft mechanism is in the unfolded state, there is a first distance between the first side end (3022) of the sliding part (302) and the first side wall (2212), and a second distance between the second side end (3023) of the sliding part (302) and the second side wall (2213), wherein the first distance is less than the second distance; the first side end (3022) is adjacent to the sliding member (400) along the first direction, and the second side end (3023) is away from the sliding member (400) along the first direction; When the rotating shaft mechanism is in the folded state, there is a third distance between the first side end (3022) of the sliding part (302) and the first side wall (2212), and a fourth distance between the second side end (3023) of the sliding part (302) and the second side wall (2213), wherein the third distance is greater than the fourth distance; Wherein, the first distance is less than the third distance, and the second distance is greater than the fourth distance.
  9. The rotating shaft mechanism according to claim 8 is characterized in that, The connecting block (220) also includes a relief groove (222); The clearance groove (222) is located on the side of the first slide groove (221) opposite to the slider (400) along the first direction and is in communication with the first slide groove (221).
  10. The rotating shaft mechanism according to claim 9 is characterized in that, The second rotating member (300) further includes a protrusion extending relative to the sliding portion (302) along the first direction. Exit (304); The protrusion (304) is configured to slide into the relief groove (222) when the second rotating member (300) slides relative to the connecting block (220) in the first direction, with the end of the protrusion (304) close to the third sidewall (2221) of the relief groove (222).
  11. The rotating shaft mechanism according to claim 4 is characterized in that, Also includes: a spiral sliding bracket (500); The spiral sliding bracket (500) is located on the base (100) and on the side of the second rotating member (300) opposite to the sliding member (400); The spiral sliding bracket (500) is configured to rotate in a spiral engagement with the second rotating member (300) and to engage with the sliding member (400) such that the second rotating member (300) slides relative to the connecting block (220) in the first direction and rotates about the base (100).
  12. The rotating shaft mechanism according to claim 11 is characterized in that, The rotating part (301) of the second rotating member (300) further includes a third helical rotating structure (305), and the side of the helical sliding bracket (500) facing the second rotating member (300) includes a fourth helical rotating structure (501), and the third helical rotating structure (305) and the fourth helical rotating structure (501) rotate in a helical cooperation. The spiral sliding bracket (500) is further configured such that when the second rotating member (300) is subjected to a force from the sliding member (400) along the first direction, the third spiral rotating structure (305) and the fourth spiral rotating structure (501) rotate in a spiral engagement, causing the second rotating member (300) to slide relative to the connecting block (220) along the first direction and rotate about the base (100).
  13. The rotating shaft mechanism according to claim 12 is characterized in that, The first helical rotation structure (214) of the first rotating member (200) has a first helical surface, the second helical rotation structure (401) of the sliding member (400) has a second helical surface, the third helical rotation structure (305) of the second rotating member (300) has a third helical surface, and the fourth helical rotation structure (501) of the helical sliding bracket (500) has a fourth helical surface; The extension direction of the first helical surface is the same as that of the second helical surface, and the extension direction of the first helical surface is different from that of the fourth helical surface. The extension direction of the third helical surface is the same as that of the fourth helical surface, but the extension direction of the third helical surface is different from that of the second helical surface.
  14. The rotating shaft mechanism according to claim 11 is characterized in that, The base (100) includes stacked shaft caps (101) and brackets (102), the brackets (102) including support rods (1021) whose length direction is parallel to the first direction; The slider (400) further includes a second groove (403), the length direction of which is parallel to the first direction; The support rod (1021) is embedded in the second groove (403) to enable the sliding member (400) to slide along the base (100).
  15. The rotating shaft mechanism according to claim 14 is characterized in that, The second groove (403) is located on the side surface of the slider (400) opposite to the bracket (102); The surface of the support rod (1021) facing the shaft cover (101) includes a third groove (1026), the length direction of the third groove (1026) is parallel to the first direction, and the length of the third groove (1026) is greater than the length of the second groove (403); The sliding member (400) is located between the shaft cover (101) and the bracket (102) and is located in the third slide groove (1026). The support rod (1021) is embedded in the second slide groove (403) to realize the sliding member (400) sliding along the base (100).
  16. The rotating shaft mechanism according to claim 14 is characterized in that, The bracket (102) includes a fourth slide groove, the length direction of which is parallel to the first direction; The slider (400) includes a slider block, the length direction of which is parallel to the first direction; The length of the fourth groove is greater than the length of the sliding block; The sliding block is configured to be embedded in the fourth sliding groove and slide within the fourth sliding groove to enable the sliding member (400) to slide along the base (100).
  17. The rotating shaft mechanism according to claim 14 is characterized in that, The bracket (102) includes a fixed bracket (1022), which is connected to the support rod (1021) and is located on the side of the main swing arm (210) away from the sliding member (400); The fixed bracket includes a fourth rotating structure (10221), which is configured to rotate in an arc with the first rotating structure (213) of the main swing arm (210).
  18. The rotating shaft mechanism according to claim 15 is characterized in that, It also includes: a first pre-tensioning mechanism (600); The first pre-tightening mechanism (600) is located on the side of the spiral sliding bracket (500) away from the second rotating member (300). One end of the first pre-tightening mechanism (600) abuts against the spiral sliding bracket (500), and the other end is fixed to the base (100). The first pre-tightening mechanism (600) is configured to press the spiral sliding bracket (500), the second rotating member (300), the sliding member (400), the first rotating member (200), and the fixed bracket (1022) along the first direction.
  19. The rotating shaft mechanism according to claim 17 or 18 is characterized in that, It also includes: a second pre-tensioning mechanism; The second pre-tightening mechanism is located on the side of the fixed bracket (1022) away from the main swing arm (210). One end of the second pre-tightening mechanism abuts against the fixed bracket (1022), and the other end is fixed to the base (100). The second pre-tightening mechanism is configured to press the spiral sliding bracket (500), the second rotating member (300), the sliding member (400), the first rotating member (200), and the fixed bracket (1022) along the first direction.
  20. The rotating shaft mechanism according to claim 13 is characterized in that, The number of main swing arms (210) is at least two, and at least two of the main swing arms (210) are located on the base. (100) on opposite sides along the first direction, and rotating in cooperation with the base (100); The extension direction of the first helical surface of the main swing arm (210) located on opposite sides of the base (100) is symmetrical with respect to the first direction.

Description

A rotating shaft mechanism and electronic device Technical Field This application relates to the field of terminal equipment technology, and in particular to a rotating shaft mechanism and electronic equipment. Background Technology With the development of terminal technology, the screen sizes of mobile phones and other electronic devices are getting larger and larger. In order to meet users' portability needs while increasing screen size, foldable screen devices are gradually entering users' usage scenarios. Foldable screen devices typically use a hinge mechanism to achieve folding or unfolding. The hinge mechanism includes a swing arm and a connecting block. When the electronic device falls, the swing arm and the connecting block slide relative to each other, causing the display screen to impact the hinge mechanism downwards, resulting in the display screen failure. Summary of the Invention This application provides a pivot mechanism and electronic device to solve the problem of relative sliding between the swing arm and the connecting block during a drop, which can easily lead to display screen failure. In a first aspect, this application provides a rotating shaft mechanism, comprising: a base, a first rotating member, a second rotating member, and a sliding member. The first rotating member rotates in conjunction with the base; one end of the second rotating member rotates around the base, and the other end is slidably connected to the first rotating member; the sliding member is slidably connected to the base and is located between the first and second rotating members along a first direction, and the sliding member abuts against the first and second rotating members respectively; during the rotation of the first rotating member around the base, the first rotating member drives the sliding member to slide along the first direction, so that the second rotating member rotates around the base and slides relative to the first rotating member along the first direction; wherein, the first direction is the axial direction of the base. The rotating shaft mechanism provided in this application embodiment has a first rotating member, a sliding member, and a second rotating member abutting and cooperating in a first direction to jointly form a rotating assembly of the rotating shaft mechanism. This rotating assembly can have both a synchronization function and a motion control function around the base, achieving both synchronization and improved strength of the rotating shaft mechanism. This not only reduces the space occupied by the rotating shaft mechanism in the y-axis direction, but also effectively distributes the drop impact force of the second rotating member using the first rotating member, preventing the second rotating member from detaching from its corresponding first rotating member. During a drop, it prevents the first rotating member from driving the electronic device's body towards the base, thereby preventing the body from driving the display screen to impact the base and causing display screen failure. In some implementations, the first rotating component includes a main swing arm and a connecting block; one end of the main swing arm rotates in conjunction with the base, and the other end is connected to the connecting block; the second rotating component is located on one side of the main swing arm along a first direction and is connected to the connecting block; a sliding component is located between the main swing arm and the second rotating component along the first direction, the sliding component rotates helically with the main swing arm, and rotates in an arc with the second rotating component. Thus, the helistic rotation of the sliding component and the main swing arm can drive the second rotating component to slide along the first direction. In some implementations, the main swing arm includes a rotating part and a connecting part. The rotating part rotates in conjunction with the base, and the connecting part is connected to a connecting block. The rotating part includes a first rotating structure and a first helical rotating structure. The first rotating structure is configured to rotate in conjunction with the base, and the first helical rotating structure is configured to rotate helically in conjunction with a sliding member. In this way, one end of the main swing arm rotates in an arc with the base, and the other end rotates helically with the sliding member, thereby forming an inverted structure. This prevents the main swing arm from detaching from the base during rotation or a fall, improving impact resistance and structural stability. In some implementations, the slider includes a second helical rotation structure and a second rotation structure; the second helical rotation structure and the first helical rotation structure rotate in a helical engagement, and the second rotation structure is configured to rotate in an arc engagement with the second rotating member; the slider The