| 摘要 |
An explosive trap for burrowing rodents is comprised of an elastic sack and an associated support frame which are placed in a tunnel that is formed adjacent to the rodent's run. The frame includes a pointed spike which punctures the sack when it expands to a predetermined size upon inflation by the pressurized gas. The resulting explosion provides a concussive shock which kills the rodent. The sack is fluidly connected to an above ground container which can be filled with the pressurized gas through a length of hose, and a valve located at the outlet of the container normally prevents the gas from flowing from the container into the sack. A trigger located outside of the rodent run above its clean-out hole causes the valve to be opened and release the gas from the container, so that it will inflate the sack, when the rodent pushes more dirt out of the clean-up hole. The trigger includes an elongate platform, which is suspended above the clean-out hole by means of a rod which is pushed into the ground, and an elongate arm which is pivotally attached to the platform. In one embodiment the valve is opened by means of a battery energized solenoid when mating nodes located on the arm and platform come into contact upon the arm being raised. In another embodiment the valve is mechanically opened upon upward movement of the arm. The trigger can also be utilized for exploding electrically fired pyrotechnic charges if desired.
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