Device is washed to closed sucker rod well head thorn

The utility model relates to a device is washed to closed sucker rod well head thorn. It washes the in -process and can produce a large amount of sump oil sewage and fall the problem that causes environmental pollution in ground mainly to have solved the current thorn that exists among the prior art. Its characterized in that: be equipped with in the space that main part (9) and top connection (1) formed self -sealing core (2) and clamping ring (3), a plurality of nozzle (8) is connected to the middle part centrum shape position circumference equidistance of main part, forming high -pressure ring cavity between the middle part centrum shape position of the main part external connection ring cavity outer wall (4) that makes progress, the middle part centrum shape part of main part and ring cavity outer wall (4), drawing (5) six partitions in the hole and connect on the ring cavity outer wall, plug (6) are connected on drawing the hole, and ring cavity outer wall lower extreme is opened there are inlet (7), and open the main part lower part has recovery mouth (10). This device is washed to closed sucker rod well head thorn in time retrieves the assigned position with sump oil sewage, realizes cleaning the borehole operation construction.