Search

CN-121989203-A - Leg booster mechanism

CN121989203ACN 121989203 ACN121989203 ACN 121989203ACN-121989203-A

Abstract

The application relates to the technical field of human body assistance, in particular to a leg assistance mechanism, which comprises a driving assembly, a first transmission assembly, a second transmission assembly, a third transmission assembly and a first supporting piece, wherein the driving assembly is in transmission connection with one end of the first transmission assembly and can drive the first transmission assembly to rotate around a first axis. One end of the second transmission assembly is connected with the other end of the first transmission assembly and can rotate around a second axis relative to the first transmission assembly. The third transmission assembly is connected with the other end of the second transmission assembly and can rotate around a third axis relative to the second transmission assembly. The second axis is perpendicular to the first axis and the third axis, and the third axis forms an included angle smaller than 90 degrees with the first axis. The first support is mounted to the third transmission assembly. The leg assisting mechanism can reduce the distortion of the walking posture of a user after wearing the leg assisting mechanism.

Inventors

  • Request for anonymity
  • Request for anonymity
  • Request for anonymity

Assignees

  • 极壳科技(上海)有限公司

Dates

Publication Date
20260508
Application Date
20241102

Claims (15)

  1. 1. The leg assisting mechanism is characterized by comprising a driving assembly (1), a first transmission assembly (2), a second transmission assembly (3), a third transmission assembly (4) and a first supporting piece (5), wherein, The driving assembly (1) is in transmission connection with one end of the first transmission assembly (2) and can drive the first transmission assembly (2) to rotate around a first axis; One end of the second transmission assembly (3) is connected with the other end of the first transmission assembly (2) and can rotate around a second axis relative to the first transmission assembly (2); The third transmission assembly (4) is connected with the other end of the second transmission assembly (3) and can rotate around a third axis relative to the second transmission assembly (3); the second axis is perpendicular to the first axis and the third axis, and the third axis forms an included angle smaller than 90 degrees with the first axis; the first support (5) is mounted to the third transmission assembly (4).
  2. 2. Leg assist mechanism according to claim 1, characterized in that the second transmission assembly (3) comprises a first support (31) and a second support (32), the first support (31) being connected to the first transmission assembly (2), the second support (32) being connected to the third transmission assembly (4), the first support (31) being detachably connected to and in contact with the second support (32) forming a connection surface, the connection surface being parallel to the third axis.
  3. 3. Leg assist mechanism according to claim 2, characterized in that the first support (31) comprises a first part (311) and a second part (312), the first part (311) being connected to the second part (312), the second part (312) being located on one side of the first part (311), the first part (311) being connected to the first transmission assembly (2), the second part (312) being detachably connected to the second support (32).
  4. 4. Leg assist mechanism according to claim 1, characterized in that the third transmission assembly (4) comprises a first link (41) and a second link (42), the first link (41) being connected to the second link (42) and being able to slide relatively, the first link (41) being connected to the second transmission assembly (3), the first support (5) being connected to the second link (42).
  5. 5. Leg assist mechanism according to claim 4, characterized in that the third transmission assembly (4) comprises a guide rail (43) and a slider (44), the guide rail (43) being in sliding engagement with the slider (44), wherein, The guide rail (43) is mounted on the first connecting rod (41) and extends along the length direction of the first connecting rod (41), and the sliding block (44) is mounted on the second connecting rod (42); Or alternatively, the first and second heat exchangers may be, The slider (44) is mounted on the first link (41), and the guide rail (43) is mounted on the second link (42) and extends in the longitudinal direction of the second link (42).
  6. 6. Leg assist mechanism according to claim 5, characterized in that the third transmission assembly (4) further comprises a limit part (45), the upper and lower ends of the second link (42) are respectively provided with the limit part (45), and the limit part (45) is connected with the guide rail (43).
  7. 7. Leg assist mechanism according to claim 1, characterized in that the first support (5) comprises a first support bar (51) and a first leg rest (52), the first support bar (51) connecting the first leg rest (52) and the third transmission assembly (4), the axis of at least a part of the first support bar (51) intersecting the first axis out-of-plane, the first leg rest (52) being located at the end of the first support bar (51) remote from the third transmission assembly (4).
  8. 8. Leg assist mechanism according to claim 7, characterized in that the first support bar (51) comprises a first section (511) and a second section (512), the first section (511) connects the third transmission assembly (4) and the second section (512), the axis of the first section (511) intersects the axis of the second section (512), the axis of the first section (511) intersects the first axis out of plane, and the second section (512) is connected to the first leg rest (52).
  9. 9. The leg assist mechanism as recited in claim 7, characterized in that a center of the first leg rest (52) is located on an extension of the third axis.
  10. 10. Leg assist mechanism according to claim 1, characterized in that the leg assist mechanism comprises a rotating assembly (6) and a second support (7), the rotating assembly (6) being connected to the third transmission assembly (4), at least a part of the third transmission assembly (4) being rotatable relative to the rotating assembly (6) about a fourth axis, which is parallel to the first axis, and the second support (7) being connected to the rotating assembly (6).
  11. 11. Leg assist mechanism according to claim 10, characterized in that the rotation assembly (6) comprises a third link (61) and a fourth link (62), the third link (61) connecting the fourth link (62) and the third transmission assembly (4), the fourth link (62) being rotatable relative to the third link (61) about the fourth axis, the second support (7) being connected to the fourth link (62).
  12. 12. Leg assist mechanism according to claim 11, characterized in that the rotation assembly (6) comprises a first motor (63), the first motor (63) being mounted to the third link (61) and being in driving connection with the fourth link (62) so as to be able to drive the fourth link (62) to rotate about the fourth axis.
  13. 13. Leg assist mechanism according to claim 10, characterized in that the second support (7) comprises a second support bar (71) and a second leg rest (72), the second support bar (71) connecting the second leg rest (72) and the third transmission assembly (4), the axis of at least a part of the second support bar (71) intersecting the first axis off-plane, the second leg rest (72) being located at the end of the second support bar (71) remote from the third transmission assembly (4).
  14. 14. Leg assist mechanism according to claim 13, characterized in that the second support bar (71) comprises a third section (711) and a fourth section (712), the third section (711) connecting the third transmission assembly (4) and the fourth section (712), the axis of the third section (711) intersecting the axis of the fourth section (712), the axis of the third section (711) intersecting the first axis off-plane, the fourth section (712) being connected to the second leg rest (72).
  15. 15. Leg assist mechanism according to claim 13, characterized in that the midpoint of the line connecting the center of the first leg rest (52) and the center of the second leg rest (72) is located on an extension of the third axis.

Description

Leg booster mechanism Technical Field The application relates to the technical field of human body assistance, in particular to a leg assistance mechanism. Background The leg assisting mechanism is an assisting product, and can simulate the movement of the legs of a human body to drive a user to walk. The leg assisting mechanism generally comprises a connecting rod and a motor, wherein the motor can drive the connecting rod to swing so as to simulate the leg of a human body, and further drive thighs and calves of a user to perform corresponding actions, so that assisting is realized. In the related art, when a user walks after wearing the leg assisting mechanism, the walking posture of the user always generates distortion, and the distorted walking posture is greatly different from the walking posture of the user normally walking, so that the wearing comfort of the user is affected, and the walking posture of the user is greatly changed after wearing the leg assisting mechanism. Disclosure of Invention In view of the above, the present application provides a leg assist mechanism to reduce distortion caused to a walking posture of a user after wearing the leg assist mechanism. Specifically, the method comprises the following technical scheme: The application provides a leg assisting mechanism, which comprises a driving component, a first transmission component, a second transmission component, a third transmission component and a first supporting piece, wherein, The driving assembly is in transmission connection with one end of the first transmission assembly and can drive the first transmission assembly to rotate around the first axis. One end of the second transmission assembly is connected with the other end of the first transmission assembly and can rotate around a second axis relative to the first transmission assembly. The third transmission assembly is connected with the other end of the second transmission assembly and can rotate around a third axis relative to the second transmission assembly. The second axis is perpendicular to the first axis and the third axis, and the third axis forms an included angle smaller than 90 degrees with the first axis. The first support is mounted to the third drive assembly. Optionally, the second transmission assembly includes a first support and a second support, the first support is connected with the first transmission assembly, the second support is connected with the third transmission assembly, the first support is detachably connected with the second support and contacts to form a connection surface, and the connection surface is parallel to the third axis. Optionally, the first support comprises a first part and a second part, the first part is connected with the second part, the second part is located on one side of the first part, the first part is connected with the first transmission assembly, and the second part is detachably connected with the second support. Optionally, the third transmission assembly includes a first link and a second link, the first link is connected to the second link and is capable of sliding relatively, the first link is connected to the second transmission assembly, and the first support is connected to the second link. Optionally, the third transmission assembly comprises a guide rail and a sliding block, the guide rail is in sliding fit with the sliding block, wherein the guide rail is installed on the first connecting rod and extends along the length direction of the first connecting rod, the sliding block is installed on the second connecting rod, or the sliding block is installed on the first connecting rod, and the guide rail is installed on the second connecting rod and extends along the length direction of the second connecting rod. Optionally, the third transmission assembly further includes a limiting portion, and the upper end and the lower end of the second connecting rod are respectively provided with the limiting portion, and the limiting portion is connected with the guide rail. Optionally, the first support piece includes first bracing piece and first leg holds in the palm, first bracing piece is connected first leg holds in the palm with third drive assembly, the axis of at least a portion of first bracing piece with first axis is different to be faced and is crossed, first leg holds in the palm is located first bracing piece is kept away from third drive assembly's one end. Optionally, the first support rod includes a first section and a second section, the first section is connected the third transmission assembly with the second section, the axis of the first section intersects with the axis of the second section, the axis of the first section intersects with the first axis out of plane, and the second section is connected with the first leg rest. Optionally, the center of the first leg rest is located on an extension of the third axis. Optionally, the leg booster mechanism includes a rotating assembly and a s