Adjustable lubrication module of linear guideway

A lubrication module of a linear guideway, the linear guideway comprising a rail and a slider slidably disposed at the rail, the lubrication module comprising:

• an end lid has an end lid body and an outer end lid, the end lid body disposed on an end surface of the slider, the end lid body having a primary oiling channel and two secondary oiling channels, a feed hole and a receiving chamber disposed below the feed hole being disposed on an end surface of the end lid body, the receiving chamber being in communication with the primary oiling channel and the two secondary oiling channels, a first half-oil-guiding conduit and two first half-backflow chambers being disposed on a wall of the receiving chamber, with the outer end lid fitted in the receiving chamber, two second half-backflow chambers and a second half-oil-guiding conduit being disposed on an end surface of the outer end lid, the two second half-backflow chambers being connected to the first half-backflow chambers, respectively to jointly form one of two backflow chambers, and the second half-oil-guiding conduit being connected to the first half-oil-guiding conduit to jointly form an oil-guiding conduit;
• the oil-guiding conduit being closer to the rail than the feed hole, two ends of the primary oiling channel being in communication with the feed hole and the oil-guiding conduit, respectively, and two ends of each said secondary oiling channel to be in communication with the oil-guiding conduit and one of the backflow chambers, respectively;
• and
• an oil scraper disposed on an end surface of the end lid and having an oil feeding inlet, wherein the oil feeding inlet is in communication with the feed hole of the end lid body.