Pushing lever structure of ratchet wrench

A pushing lever structure of a ratchet wrench, comprising:

• a head portion formed with a receiving space and having a through hole in a top wall of the head portion, wherein the through hole is in communication with the receiving space;
• a ratchet gear having a peripheral surface provided with teeth, the ratchet gear being rotatably mounted in the receiving space of the head portion;
• a toothed element having a front peripheral surface portion provided with teeth, the toothed element further having a rear peripheral surface portion provided with a cavity and a recess, wherein the cavity and the recess are vertically arranged with respect to each other, the cavity has a greater horizontal width than the recess, the toothed element being mounted in the receiving space and displaceable between two opposite lateral sides of the receiving space;
• a pushing lever having a main body, a pushing portion provided at a top end of the main body, and a pushing block extending forward from the main body, the pushing lever being rotatably mounted in the receiving space, wherein the pushing portion juts out of the head portion through the through hole, the pushing block extends into the recess of the toothed element, and the pushing block drives the toothed element into displacement when the pushing lever is rotated;
• and
• an elastic positioning element provided between a rear side of the toothed element and a front side of the pushing lever, the elastic positioning element having a front end extending into the cavity of the toothed element, the elastic positioning element having such elasticity as to urge a front side of the toothed element to keep meshing with the ratchet gear;
• wherein the pushing block has a width gradually reduced toward a free end of the pushing block, the pushing block has two curved opposite lateral sides, each of the two opposite lateral sides of the pushing block forms a concave surface, and the recess has two opposite lateral sides spaced farther apart at an opening of the recess than at an inner end of the recess, the two opposite lateral sides of the recess are curved, and each of the two opposite lateral sides of the recess forms a convex surface.