Abstract: A fixing belt adjusting mechanism and a wearable device are provided. The fixing belt adjusting mechanism includes a fixing base, a ratchet wheel, a driving member, a knob, a reset piece and a transmission wheel. The driving member may be rotated by the knob, so that a pawl drives the ratchet wheel to rotate in a first direction. Both ends of the reset piece are respectively connected with the fixing base and the ratchet wheel, so that the ratchet wheel may be driven to rotate and reset in a second direction. The transmission wheel coaxially and fixedly connected with the ratchet wheel may drive a first fixing belt and a second fixing belt to move towards or away from each other through rotation. Therefore, the fixing belt adjusting mechanism may achieve the effect of synchronously adjusting two fixing belts using a simple structure, which facilitates improving the user experience.

Abstract: A smart wearable device includes a housing, a charging apparatus and a charger. The charging apparatus is disposed in the housing. The charger is configured to charge the charging apparatus. The charging apparatus is mounted in the housing of the smart wearable device. The charging apparatus includes a motherboard, a battery, an adapter, and a charging contact disposed in the housing. The battery and the adapter are both electrically connected to the motherboard. The charging contact is electrically connected to the adapter and extends through the outer wall of the housing. The charging contact includes a conductive ceramic charging contact.

Abstract: A fixing belt adjusting mechanism and a wearable device are provided. The fixing belt adjusting mechanism includes a fixing base, a ratchet wheel, a driving member, a knob, a reset piece and a transmission wheel. The driving member may be rotated by the knob, so that a pawl drives the ratchet wheel to rotate in a first direction. Both ends of the reset piece are respectively connected with the fixing base and the ratchet wheel, so that the ratchet wheel may be driven to rotate and reset in a second direction. The transmission wheel coaxially and fixedly connected with the ratchet wheel may drive a first fixing belt and a second fixing belt to move towards or away from each other through rotation. Therefore, the fixing belt adjusting mechanism may achieve the effect of synchronously adjusting two fixing belts using a simple structure, which facilitates improving the user experience.

Abstract: Embodiments of the present disclosure disclose a protection apparatus, where a protection shell and a protected member are locked by using a first locking part and a second locking part respectively, and the unlocking of the first locking part is controlled by the second locking part by means of a sensor and a controller. Thus, multiple protection of the protected member is achieved by using the first locking part and the second locking part, and a protection effect on the protected member is improved. Meanwhile, when the second locking part unlocks the protection shell during the removal stage of the protected member, the first locking part also unlocks the protected member at the same time, thereby simplifying operation steps of removing the protected member.

Abstract: The present disclosure provides a head-mounted device including a display component, a speaker component, and a connecting component. Two ends of the connecting component respectively are connected to the display component and the speaker component. The connecting component includes a body, a rotating bracket, and a locking block. The body is connected to the display component and has an opening. The rotating bracket is disposed in the body. One end of the rotating bracket has a first protrusion portion, a second protrusion portion, and an accommodating groove. The other end of the rotating bracket passes through the opening and is connected to the speaker component. The locking block is disposed in the body and is movable to close to or away from the accommodating groove. When the locking block is engaged with the accommodating groove, the rotating bracket is limited to rotate.

Abstract: A medical hearing-aid earphone includes a housing, and a battery assembly and a circuit board assembly located in the housing, where the housing is internally provided with a sound cavity, and the medical hearing-aid earphone further includes a speaker assembly located in the housing and a holder sleeved outside the speaker assembly. The holder and the speaker assembly divide the sound cavity into a front sound cavity and a rear sound cavity, where a relative position of the speaker assembly in the holder is adjustable during assembling. The medical hearing-aid earphone is convenient to adjust space sizes of a front sound cavity and a rear sound cavity, so that the medical hearing-aid earphone can be customized according to requirements of different users and has a larger application range.

Abstract: The present disclosure provides smart glasses and a camera device thereof. The camera device includes a base, a circuit board component, a camera component, and a case. The base has an engaging part, and the engaging part is detachably connected to a temple of a smart glasses body. The circuit board component is disposed on the base. The camera component is disposed on the base and electrically connected to the circuit board component. The case is disposed on the base and covers the circuit board component and the camera component. The case has a camera opening, and a part of the camera component is exposed from the camera opening. The camera device may be detachably connected to the smart glasses through the engaging part on the base, so that the user may quickly change different camera devices according to requirements.

Abstract: The present disclosure provides a head-mounted device including a display component, a speaker component, and a connecting component. Two ends of the connecting component respectively are connected to the display component and the speaker component. The connecting component includes a body, a rotating bracket, and a locking block. The body is connected to the display component and has an opening. The rotating bracket is disposed in the body. One end of the rotating bracket has a first protrusion portion, a second protrusion portion, and an accommodating groove. The other end of the rotating bracket passes through the opening and is connected to the speaker component. The locking block is disposed in the body and is movable to close to or away from the accommodating groove. When the locking block is engaged with the accommodating groove, the rotating bracket is limited to rotate.

Abstract: A medical hearing-aid earphone includes a housing, and a battery assembly and a circuit board assembly located in the housing, where the housing is internally provided with a sound cavity, and the medical hearing-aid earphone further includes a speaker assembly located in the housing and a holder sleeved outside the speaker assembly. The holder and the speaker assembly divide the sound cavity into a front sound cavity and a rear sound cavity, where a relative position of the speaker assembly in the holder is adjustable during assembling. The medical hearing-aid earphone is convenient to adjust space sizes of a front sound cavity and a rear sound cavity, so that the medical hearing-aid earphone can be customized according to requirements of different users and has a larger application range.