The disclosure provides a sealing plug assembly including a plug body, a guide ring, a first sealing ring and an elastic component. The plug body has an annular outer surface having a plug side and an exposed side opposite each other and a first annular recess located at the annular outer surface and located between the plug side and the exposed side. The guide ring is sleeved on the plug body and located in the first annular recess. The guide ring has a first inclined surface. The first sealing ring is sleeved on the plug body and located in the first annular recess. The first sealing ring is located farther away from the exposed side of the annular outer surface than the guide ring. The first sealing ring has a second inclined surface matching the first inclined surface. The elastic component is sleeved on the first sealing ring.

The disclosure provides a sealing plug assembly including a plug body, a guide ring, a first sealing ring and an elastic component. The plug body has an annular outer surface having a plug side and an exposed side opposite each other and a first annular recess located at the annular outer surface and located between the plug side and the exposed side. The guide ring is sleeved on the plug body and located in the first annular recess. The guide ring has a first inclined surface. The first sealing ring is sleeved on the plug body and located in the first annular recess. The first sealing ring is located farther away from the exposed side of the annular outer surface than the guide ring. The first sealing ring has a second inclined surface matching the first inclined surface. The elastic component is sleeved on the first sealing ring.

A fluid end, includes a plunger reciprocating within a first bore, the plunger increasing a pressure of a fluid within a pressure chamber. The fluid end also includes a second bore. The fluid end further includes a plug assembly associated with the second bore. The plug assembly includes a plug body positioned within the second bore. The plug assembly also includes a lock ring positioned, at least in part, within the second bore, the lock ring positioned to be driven radially outward responsive to a longitudinal force applied to the plug body.

A fluid end, includes a plunger reciprocating within a first bore, the plunger increasing a pressure of a fluid within a pressure chamber. The fluid end also includes a second bore. The fluid end further includes a plug assembly associated with the second bore. The plug assembly includes a plug body positioned within the second bore. The plug assembly also includes a lock ring positioned, at least in part, within the second bore, the lock ring positioned to be driven radially outward responsive to a longitudinal force applied to the plug body.

Sealing caps and method for manufacturing such sealing caps are presented wherein the sealing cap has a body (1) with a U-shaped profile with a base (9) and a perimeter wall (7) wherein the outside of the body is coated with a layer of an elastic material (5) and wherein the base is provided with a continuous convex ridge (12) adjacent the perimeter wall.

Sealing caps and method for manufacturing such sealing caps are presented wherein the sealing cap has a body (1) with a U-shaped profile with a base (9) and a perimeter wall (7) wherein the outside of the body is coated with a layer of an elastic material (5) and wherein the base is provided with a continuous convex ridge (12) adjacent the perimeter wall.

A hole plug includes a cap and a securing frame. The securing frame extends from the cap. The securing frame includes first and second support legs, first and second connectors, and a lock body. The first connector is engaged with the first support leg. The second connector is engaged with the second support leg. The lock body is engaged with the first and second connectors.

A hole plug includes a cap and a securing frame. The securing frame extends from the cap. The securing frame includes first and second support legs, first and second connectors, and a lock body. The first connector is engaged with the first support leg. The second connector is engaged with the second support leg. The lock body is engaged with the first and second connectors.

The disclosure provides a sealing plug assembly including a plug body, a guide ring, a first sealing ring and an elastic component. The plug body has an annular outer surface having a plug side and an exposed side opposite each other and a first annular recess located at the annular outer surface and located between the plug side and the exposed side. The guide ring is sleeved on the plug body and located in the first annular recess. The guide ring has a first inclined surface. The first sealing ring is sleeved on the plug body and located in the first annular recess. The first sealing ring is located farther away from the exposed side of the annular outer surface than the guide ring. The first sealing ring has a second inclined surface matching the first inclined surface. The elastic component is sleeved on the first sealing ring.

According to the disclosure, a closing disc is provided for closing openings, in particular in motor vehicles. It comprises a plate-shaped carrier body made of a hard component with a covering side and a closing side, and a soft component arranged on the closing side, wherein the soft component is formed from a heat-activatable adhesive material, and wherein the closing disc is free of latching means or comprises no latching and/or fastening means.