| 摘要 |
Disclosed is a portable car-used oil extracting and tire inflation apparatus with separately disposed oil and air pumps. A first embodiment of the apparatus mainly includes a motor with a rotary shaft on upper and lower ends thereof. The upper rotary shaft is connected by an eccentric pin to a rocker arm of an oil pump assembly disposed at an upper front portion of the apparatus. The lower rotary shaft is similarly connected to a rocker arm of an air pump assembly disposed at a lower front portion of the apparatus. When the motor is turned on the rocker arms reciprocate in linear movement, and the oil and the air pump assemblies extract and drain oil from a sump of a vehicle and inflate tires of the vehicle, respectively. A second embodiment of the apparatus has similar structure as that of the first embodiment except weighted eccentric shaft means are connected to the rotary shafts of the motor by a unidirectional bearing, and a power switch is provided to enable the motor to turn either in a first direction to actuate the oil pump assembly only, or in a second reverse direction to actuate the air pump assembly only, thereby enhancing the efficiency of the power output of the motor.
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