FIELD: oil and gas production industry. SUBSTANCE: this well-head packing box is intended for sealing well-heads of deep wells during their operation with inserted rod pumps. Pivotally connected with tee-piece is ball head. Body is connected with ball head. Ball head is made up of lower bush, lower collar holder, lower sealing member, and intermediate bush. Body has upper bush, upper collar holder, and upper sealing member. Each collar of set of which packing box sealing members are composed is made splittable within at least one quarter of length of collar circular ring over its average radius. Split line is angled with respect to circumference line of average radius of circular ring in the form of slot in its body from upper surface to lower surface. Made on one of created surfaces of split is fixing protrusion, and made on other surface is fixing recess, and they are mating. Aforesaid embodiment of packing box helps improve its design due to advanced construction of collars which constitute basic component of well-head packing box. EFFECT: higher efficiency. 21 dwg
