| 摘要 |
A livestock guard. The livestock guard may include a rectangular base frame. Two vertical posts may be attached to the rectangular base frame. There may be a pivot bar centrally and longitudinally oriented within the rectangular base frame. There may be two livestock guard ramps within the rectangular base frame and pivotally attached to the pivot bar in such a way as to decline away from the pivot bar in opposite directions. The pivot bar may be supported at each end by a spring assembly housed in one of the vertical post members. The pivot bar may be supported in such a way as to normally rest at a predetermined height above the rectangular base frame and also in such a way as to be depressible to the height of the rectangular base frame when pressed under a certain weight.
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