46results about How to "Expand the range of suction" patented technology

The invention discloses an automatic brake fluid release device. The automobile brake fluid release device comprises a fluid release device bottom seat, wherein a plurality of movable pulleys are fixedly connected below the fluid release device bottom seat, the number of the movable pulleys is two, a fluid release device support rod is fixedly installed on the other side, relative to the movable pulleys, of the fluid release device bottom seat, and a support rod inner loop bar is inserted into the fluid release device support rod. According to the automobile brake fluid release device, a firstpipe and a rubber casing pipe are arranged, and due to the fact that the rubber casing pipe has plasticity and is difficult to damage in the compression process, the rubber casing pipe and the firstpipe can be conveniently inserted into a brake fluid box, brake fluid in the brake fluid box can be pumped by using a pump machine, and then replacement of the brake fluid is preformed, and in the design, the rubber casing pipe sleeves one end of the first pipe, and therefore a fluid suction range of the first pipe can be enlarged, and by arranging a washing hairbrush and a washing shaft, the washing shaft can be inserted into the brake fluid box so as to clean up the brake fluid on the inner wall of the brake fluid box, and then incomplete fluid replacement is avoided.

The invention discloses a manhole trash cleaning device. The manhole trash cleaning device comprises a connecting device, a forward-reverse motor, a driving groove, a trash suction groove, trash cleaning hoppers and arc grippers, wherein the forward-reverse motor is arranged above the driving groove and fixedly connected with a rotary shaft, and the rotary shaft penetrates the upper end of the driving groove and is fixedly connected with a threaded rod B; trash suction cavities are symmetrically connected to the left and right ends of the driving groove; a moving block is in threaded connection onto the threaded rod B; the trash cleaning hoppers are symmetrically hinged to the lower end of the driving groove; a cylindrical tube is fixedly connected to the center of the lower end of the driving groove; a moving sleeve is sleeved with a ring which is fixedly connected with the moving sleeve; a fixed block is fixedly mounted at the lower end of the cylindrical tube, and the arc grippers are symmetrically hinged to the lower end of the fixed block. The manhole trash cleaning device is simple in structure and convenient to operate, trash on the surface of sewage in a manhole can be cleaned, sludge in the manhole can be cleaned simultaneously, the cleaning efficiency is high, and the trash cleaning effect is good.