Abstract: A disposable cleaning-free paint pot comprise a pot body and a pot lid covering an opening of the pot body, the pot lid including a pot lid connector and a feed hole disposed in the pot lid connector, the adapter including an external thread disposed at an outer wall, positioning blocks disposed at an inner wall thereof, a press plate and a clamping cam; the pot lid joint is including positioning slots engaging with the positioning blocks and an annular groove for the clamping cam. The paint pot from cleaning after spray coating, the cleanliness of paint pot is guaranteed, so that the paint pot is fitted on spray gun rapidly, and the paint can be mixed in the pot body.

Abstract: A disposable cleaning-free paint pot comprise a pot body and a pot lid covering an opening of the pot body, the pot lid including a pot lid connector and a feed hole disposed in the pot lid connector, the adapter including an external thread disposed at an outer wall, positioning blocks disposed at an inner wall thereof, a press plate and a clamping cam; the pot lid joint is including positioning slots engaging with the positioning blocks and an annular groove for the clamping cam. The paint pot from cleaning after spray coating, the cleanliness of paint pot is guaranteed, so that the paint pot is fitted on spray gun rapidly, and the paint can be mixed in the pot body.

Abstract: A sealing structure of a reciprocating plunger pump comprises a pump seat, a pressure relief valve assembly, a pressure regulating valve assembly, and a plunger rod assembly; the plunger rod assembly includes a plunger rod, a large sealing ring and a small sealing ring; the structure of the large sealing ring is the same as that of the small sealing ring, and the large sealing ring includes a ring-shaped sealing body, an annular recess, and an annular tension spring; the annular tension spring always has an outwardly expanding force on both side walls of the annular recess; the sealing body includes a saw-tooth sealing groove. The sealing structure reduce the load on the pump and improve the service life of the sealing ring.

Abstract: A sealing structure of a reciprocating plunger pump, comprising a pump seat, a pump body assembly, a first sealing ring, and a second sealing ring; the first sealing ring including a first sealing body which is an integrally formed annular body structure including an upper layer, a lower layer, and a V-shaped groove; wherein the V-shaped groove divides the bottom surface of the lower layer into an inner portion and an outer portion, and the inner portion thereof is higher than the outer portion; the second sealing ring includes a second sealing body which is integrally formed and includes an upper ring piece and a lower ring piece having an included angle disposed therebetween; the sealing body includes an annular rib disposed in the middle of an outer wall thereof. The sealing structure allows the reciprocating plunger pump to have a good sealing effect and a long service life.