Dirty collecting pit apron of livestock manure that prevents being poisoned

The utility model provides a dirty collecting pit apron of livestock manure that prevents being poisoned, is including lapping body and pull rod, its characterized in that: the apron body including the apron subassembly and with the lateral wall is connected of apron subassembly, the apron subassembly is including the first apron unit, second cover unit and the third apron unit that connect gradually, first apron unit, second cover unit and lateral wall be all through hinge plate fixed connection between two liang, is connected through the hinge rotation between second cover unit and the thirdapron unit, the expansion end that the unit was lapped to the third is provided with metal lock catch, the pull rod top is provided with solid fixed ring metal lock catch connects the metallic bond just the solid fixed ring that the metallic bond passed on the pull rod links to each other with the pull ring. The utility model discloses a set up pull rod and metallic bond, drive opening and beingclosed of third apron unit