Open ratchet wrench

Open ratchet wrench. The invention relates to ratchet wrenches, in particular to an open ratchet wrench. The open ratchet wrench is compact and reasonable in structure, easy to machine, easy and convenient to operate and capable of improving work efficiency. The wrench comprises a ratchet and pawl transmission mechanism, a wrench body, a wrench head, a first driving plate and a second driving plate. The wrench body, the wrench head, the first driving plate and the second driving plate are provided with matched openings respectively. The ratchet wheel and pawl transmission mechanism is positioned between the wrench head and the wrench body; the wrench head unidirectionally rotates in the wrench body through the ratchet and pawl transmission mechanism; the wrench head is rotationally arranged on the wrench head through a first driving plate and a second driving plate which are fixedly arranged on the wrench head up and down. The device has the characteristics of compact and reasonable structure, simplicity in p