Carry formula of putting spiral shell sucker -rod pumping bleeder

The utility model provides a carry formula of putting spiral shell sucker -rod pumping bleeder is by the top connection, connect at the outer barrel of top connection below, install in the internal sealed core section of thick bamboo of urceolus, install and form at a plurality of sealing washers on sealed core section of thick bamboo upper portion. The utility model discloses a lifting and transferring of oil well flow string makes sealed core section of thick bamboo barrel outer relatively reciprocate relatively in controllable stroke, and then realizes opening and closing of draining hole, accomplishes spiral shell sucker -rod pumping upper portion tubular column and sheathed tube and switches on and separate, can avoid luo sucker -rod pumping jing to examine the phenomenon that leaks that liquid or greasy dirt appear in operating in pump process and well -flushing to realize oil jacket pipe intercommunication when reaching the well -flushing. The utility model discloses can carry many times and put the us