Multifunctional chair-bed capable of providing bidirectional self-locking

The invention provides a multifunctional bed and chair capable of two-way self-locking, comprising a bed body, a wheelchair and a connecting device, the bed and the wheelchair are connected and fitted through the connecting device; the connecting device includes a bedside lock mechanism, a bedside lock Mechanism, bed guide wheels and bed guide rails; the bedside lock mechanism is installed at the head of the bed to fix the front of the wheelchair, and the bed end lock mechanism is installed at the tail of the bed to fix the rear of the wheelchair. The bed end lock mechanism includes the bed end lock hook , connecting piece and connecting rod II; one end of connecting rod II is connected to connecting piece, the other end of connecting rod II is connected to the footboard, and the connecting piece is connected to the lock hook at the end of the bed; when the footboard is opened, it drives the connecting rod II, and the connecting rod II drives the lock hook at the end of the bed to unlock end of bed. The bedside lock mechanism includes the bedside lock hook, the connecting rod Ⅰ and the bedside lock motor. The bedside lock motor is fixed at the head of the bed, and the bedside lock motor is connected to the connecting rod Ⅰ; The head lock hook realizes the connection and fixation between the wheelchair and the head of the bed.