The utility model discloses a
vacuum pump, which relates to the technical field of vacuum
welding, and comprises a motor, a pump body arranged on one side of the motor, and a frame body fixed at the bottoms of the motor and the pump body, one side of the pump body is fixedly connected with an exhaust drain
pipe, a
filter element is arranged in the exhaust drain
pipe, and a quick release piece is arranged in the
filter element. A positioning piece is arranged in the exhaust drainage
pipe, the quick release piece comprises a connecting rod movably sleeved with the
filter element, a limiting block is fixedly connected to the top of the connecting rod and located at the top of the filter element, and a bolt is fixedly connected to the bottom of the connecting rod and located at the bottom of the filter element. According to the
vacuum pump provided by the utility model, the filter element can be replaced, maintained and cleaned more simply and efficiently through the quick-release piece, complicated disassembly steps are not needed, and the filter element can be quickly taken out to be cleaned, replaced or checked only by unscrewing the connecting rod, so that the problems that the filter element of a small
vacuum pump is difficult to take out and the filter element is difficult to clean can be solved. And blockage may be caused.