Transmission structure with limiting rail and air compressor

A transmission structure, comprising a rotating shaft and a transmission body,

• wherein an end of the rotating shaft is provided with a limiting rail, and another end of the rotating shaft is configured to be connected to a driving mechanism,
• wherein a first end of the transmission body movably cooperates with the limiting rail so that when the rotating shaft rotates, the transmission body reciprocates along an axis of the rotating shaft under limit of the limiting rail, and a second end of the transmission body is configured to be connected to a device that requires linear reciprocation to do work;
• wherein the first end of the transmission body is symmetrically provided with transmission members;
• the limiting rail extends in a circumferential direction of the rotating shaft;
• the limiting rail extends reciprocally in an axial direction of the rotating shaft;
• and the transmission members movably cooperate with the limiting rail;
• the transmission body comprises a cavity through which the rotating shaft extends and a passage in which the transmission member is placed, and wherein the passage is in communication with the cavity, and wherein the transmission member is fit tightly into the passage, a top of the passage is covered by a fastener comprising a hoop body and a pressure plate connected to the hoop body, and wherein the hoop body is fit over an outer surface of the transmission body, and the pressure plate covers the top of the passage;
• and
• further comprising a guide assembly comprising a first guide member and a second guide member in sliding or rolling fit with the first guide member, wherein the first guide member is arranged parallel to the rotating shaft, the second guide member is arranged on the transmission body, and the hoop body comprises an engaging groove or an engaging hole cooperating with the second guide member.