Rotating shaft apparatus and electronic device

An electronic device, comprising:

• a first housing;
• a second housing;
• and
• a rotating shaft apparatus, wherein the rotating shaft apparatus comprises:
• a first rotating mechanism, comprising a first ratchet and a first tooth engaged with the first ratchet;
• the first tooth being rotatable with respect to the first ratchet in a first rotation direction, an engagement structure between the first tooth and the first ratchet making the first tooth stop rotating with respect to the first ratchet in a second rotation direction, and the second rotation direction being opposite to the first rotation direction;
• and
• a second rotating mechanism, coaxially arranged with the first rotating mechanism and comprising a second ratchet and a second tooth engaged with the second ratchet;
• the second ratchet being in stop-rotation connection with the first tooth, the second tooth being rotatable with respect to the second ratchet in the second rotation direction, and an engagement structure between the second tooth and the second ratchet making the second tooth stop rotating with respect to the second ratchet in the first rotation direction;
• wherein the rotating shaft apparatus further comprises a mounting base and a driving member, the driving member is rotatably connected to the mounting base, and the first ratchet is fixed to the mounting base, and the second tooth is in stop-rotation connection with the driving member;
• the mounting base is fixed with respect to the first housing, and the driving member is connected to the second housing;
• wherein the first tooth is configured to rotate, under driving of the driving member, with respect to the first ratchet in the first rotation direction, thereby changing a relative angle between the first housing and the second housing through engagement between the first tooth and the first ratchet;
• and the second tooth is configured to rotate, under driving of the driving member, with respect to the second ratchet in the second rotation direction, thereby changing the relative angle between the first housing and the second housing through engagement between the second tooth and the second ratchet.

An electronic device, comprising:

• a first housing, a second housing, and a rotating shaft apparatus;
• the rotating shaft apparatus being connected between the first housing and the second housing;
• the rotating shaft apparatus comprising:
• a first rotating mechanism, comprising a first ratchet and a first tooth;
• the first ratchet being connected to the first housing;
• the first tooth being rotatably connected to the first ratchet and being rotatable with respect to the first ratchet in a first rotation direction;
• the first ratchet being provided with a plurality of positioning grooves in the first rotation direction;
• the first tooth being capable of being selectively accommodated in at least one of the plurality of positioning grooves, so as to make the first tooth stop rotating with respect to the first ratchet in a second rotation direction;
• and the second rotation direction being opposite to the first rotation direction;
• and
• a second rotating mechanism, arranged coaxially with the first rotating mechanism, and comprising a second ratchet and a second tooth engaged with the second ratchet;
• the second ratchet being connected to the second housing, the second ratchet being in stop-rotation connection with the first tooth;
• the second tooth being rotatable with respect to the second ratchet in the second rotation direction;
• and an engagement structure between the second tooth and the second ratchet being capable of making the second tooth stop rotating with respect to the second ratchet in the first rotation direction;
• wherein the rotating shaft apparatus further comprises a mounting base and a driving member, the driving member is rotatably connected to the mounting base, and the first ratchet is fixed to the mounting base, and the second tooth is in stop-rotation connection with the driving member;
• wherein the mounting base comprises a mounting portion, a supporting portion and a connecting shaft, the supporting portion is arranged at an end of the mounting portion and defines a mounting space together with the mounting portion, the first rotating mechanism and the second rotating mechanism are arranged in the mounting space, the connecting shaft is connected to a side of the supporting portion facing towards the mounting portion, and the driving member is rotatably connected to the connecting shaft.