An irrigation bayonet riser pipe and riser receiving base assembly reduces the labor required to farm agricultural plots. The invention comprises a plurality of riser pipe receiving bases distributed along and fluidly connected to an underground irrigation supply line and a respective plurality of bayonet riser pipes that are selectively and fluidly connected to said receiving bases and further incorporates a respective plurality of flexible shape retaining and durable tubular irrigation hose segments that are attached to said receiving bases and each said hose segment preserves a path to a respective said receiving base through the ground to allow said riser pipes to be inserted and reversibly attached through said hose segments to said receiving bases. When said riser pipes are removed from said bases, a worker is better able to use farm equipment on the plot to till, to plant, and to harvest crops.

A pipe connector may include a lower motion link and an upper motion link, which may be fastened so as to be pivotable towards each other about a pivot axis. The lower motion link may have a lower seating for one of the pipe sections, and a bearing surface for the connection flange of the first pipe section. The upper motion link may have an upper seating for the other of the pipe sections, and a bearing surface for the connection flange of the second pipe section. The pivot axis may be aligned substantially at right angles to an axial direction of the lower seating and of the upper seating for the pipe sections. In a closed state, the bearing surfaces may be facing each other so that the connection flanges of both pipe sections may be able to be clasped.

A pipe connector may include a lower motion link and an upper motion link, which may be fastened so as to be pivotable towards each other about a pivot axis. The lower motion link may have a lower seating for one of the pipe sections, and a bearing surface for the connection flange of the first pipe section. The upper motion link may have an upper seating for the other of the pipe sections, and a bearing surface for the connection flange of the second pipe section. The pivot axis may be aligned substantially at right angles to an axial direction of the lower seating and of the upper seating for the pipe sections. In a closed state, the bearing surfaces may be facing each other so that the connection flanges of both pipe sections may be able to be clasped.

A mechanical branch outlet including: a housing having an outer surface and an inner surface and defining an outlet bore extending between the outer surface and the inner surface; and an insert having a first end and a second end, the outlet bore of the housing sized to receive the second end of the insert and retain the first end of the insert.

A mechanical branch outlet including: a housing having an outer surface and an inner surface and defining an outlet bore extending between the outer surface and the inner surface; and an insert having a first end and a second end, the outlet bore of the housing sized to receive the second end of the insert and retain the first end of the insert.

A mechanical branch outlet including: a housing having an outer surface and an inner surface and defining an outlet bore extending between the outer surface and the inner surface; and an insert having a first end and a second end, the outlet bore of the housing sized to receive the second end of the insert and retain the first end of the insert.

A mechanical branch outlet including: a housing having an outer surface and an inner surface and defining an outlet bore extending between the outer surface and the inner surface; and an insert having a first end and a second end, the outlet bore of the housing sized to receive the second end of the insert and retain the first end of the insert.

Provided is a pressure pipe connection structure that reduces man-hours for machining one or more pressure pipes and does not require high machining precision. Multiple arc members form a ring shape that makes a circle by matching the end faces thereof to each other. Non-penetrating holes may be provided on the outer circumference of the arc members. The ring formed by the multiple arc members has an inner diameter that is smaller than the outer diameter and larger than the inner diameter of a pressure pipe. A cylindrical sleeve has an inner cylindrical surface inside which the entire outer circumferences of arc members are fitted into a hollow internal space, into which respective one or more pressure pipes are inserted from one or more opposing entrances; and multiple through holes, which penetrate from the outside and are provided with female thread ridges. The one or more pressure pipes are cut to a certain length that is suited to the placement site and a groove is grooves cut in the corresponding pressure pipe. The arc members are fitted into the groove, and the arc members are positioned on an inner cylindrical surface by inserting the one or more pressure pipes into a sleeve, the respective through holes and non-penetrating holes are made to communicate with each other, and the one or more pressure pipes are fixed using bolts.

A mechanical branch outlet including: a housing having an outer surface and an inner surface and defining an outlet bore extending between the outer surface and the inner surface; and an insert having a first end and a second end, the outlet bore of the housing sized to receive the second end of the insert and retain the first end of the insert.

A mechanical branch outlet including: a housing having an outer surface and an inner surface and defining an outlet bore extending between the outer surface and the inner surface; and an insert having a first end and a second end, the outlet bore of the housing sized to receive the second end of the insert and retain the first end of the insert.