Side snowplow including land leveler

A side snowplow including a land leveler, comprising:

• a rear mounted seat, a hydraulic cylinder I, a pull rod, a snow-pushing board, an oscillating rod, a hydraulic cylinder II, and a front mounted seat, wherein:
• the rear mounted seat is fixed on a rear portion of a rear rack of the land leveler, the rear mounted seat being hingedly connected to a hinge plate I through pins;
• one end of the pull rod is hingedly connected to the hinge plate I through pins, and another end of the pull rod is hingedly connected to a hinge plate II through fixed pins;
• one end of the hydraulic cylinder I is hingedly connected to the rear mounted seat, and another end of the hydraulic cylinder I is hingedly connected to the pull rod;
• the front mounted seat is fixed on a front portion of the rear rack of the land leveler;
• one end of the oscillating rod is hingedly connected to the front mounted seat, and another end of the oscillating rod is hingedly connected to a hinge plate III through the pins;
• one end of the hydraulic cylinder II is hingedly connected to the front mounted seat, and another end of the hydraulic cylinder II is hingedly connected to the oscillating rod;
• and
• the snow-pushing board is positioned at a left side or a right side of the land leveler and inclines toward a direction that the land leveler moves, a rear end of the snow-pushing board being connected to the hinge plate II, a front end of the snow-pushing board being connected to the hinge plate III,
• wherein the pull rod comprises:
• a steel tube, a copper sleeve, blocking plates, a blocking pedestal, and a sliding rod, wherein:
• one end of the copper sleeve includes a protruded shoulder, the protruded shoulder being configured with two blocking plates that are semicircular, the blocking plates fix the copper sleeve at an end of the steel tube through bolts;
• and
• the sliding rod passes through the copper sleeve and slides in the steel tube, the blocking pedestal being configured at one end of the sliding rod to prevent the sliding rod from sliding out of the copper sleeve.