Patent ID: 9661839
Date: 2017-05-30
CPC Classifications: A01M

Claim:
1. A cage having an automatic door, comprising a cuboid shaped cage, wherein a front side of said cage is provided with an opening; a door panel, disposed at the front opening and inside of the cage, wherein the door panel has a length greater than a height of the cage, and a top edge of the door panel is placed inside the cage, connected to a top surface of the cage through a hinge structure; a spring device, arranged between a lower edge of the door panel and the cage, wherein the spring device can make the lower edge of the door panel lean towards a bottom surface of the cage; a pedal, disposed on the bottom surface inside the cage, wherein a front edge of the pedal is connected to the bottom surface of the cage through another hinge structure; the cage is characterized in that: the pedal is connected with a connecting rod; a pair of rotation joints is placed between a lower end of the connecting rod and the pedal; an upper end of the connecting rod extends upward and forward along a sidewall of the cage and is bent towards outside of the door panel; a spring supporting seat is fixed on the sidewall of the cage; said spring supporting seat is connected with a spring; the connecting rod is fixed with a spring contact point; one end of the spring can act upon the spring contact point; the spring can make the connecting rod lean towards the top and front of the cage through the spring contact point; a hook is fixed on an outer surface of the door panel; an opening of the hook faces towards the top of the cage; and when the door panel is in its fully open position, a bending portion at the upper end of the connecting rod locks into the hook.