3results about How to "Long sealing time" patented technology

The present invention discloses an automatic protection device for the bottom of a furnace mouth, comprising a furnace door, a furnace door body is arranged at the upper side of the furnace door, a furnace door bottom platform is arranged at the lower side of the furnace door, a guide rail is fixedly connected to the outer side of the furnace door bottom platform, a trolley body is slidably arranged on the guide rail, the trolley body is composed of a trolley platform and a trolley chassis, the upper surface of the trolley platform is flush with the upper surface of the furnace door bottom platform, the lower side connecting rollers of the trolley chassis are correspondingly arranged on the guide rail, both sides of the trolley chassis are rotatably connected with connecting rods, and the other end of the connecting rod is rotatably connected to the left and right sides of the front surface of the furnace door body. In the present invention, the trolley obtains horizontal reciprocating motion traction through the lifting power of the furnace door, the trolley and the furnace door realize position interlocking and motion synchronization through the left and right connecting rods, the furnace door is opened to complete the automatic protection of the furnace door bottom by the trolley, and the reliable sealing time of the furnace door and the furnace door bottom is extended.

The utility model discloses a waterproof low -voltage wire harness connector, including first connecting piece and second connecting piece, the connecting place of first connecting piece is provided with male terminal seat, and the connecting place of second connecting piece is provided with connecting groove, and the female end slot that is compatible with male terminal seat is provided in connecting groove, and the sliding sealing assembly that is provided with female end slot is provided with one in the connecting place outer edge of first connecting piece, and the sealing ring is provided with two groups of fixed buckles that are symmetrically arranged on the upper side and the lower side of second connecting piece, and one end of two groups of fixed buckles and sliding sealing assembly is limited and is clamped. The utility model has the advantages of better waterproof effect, and sealing installation structure is simple, and is more stable.

This utility model discloses an aluminum alloy flange connection structure with good sealing effect in the field of flange sealing technology. It includes an aluminum alloy flange one, an aluminum alloy flange two, a pipe body one, and a pipe body two. An insertion groove is formed on one side wall of the aluminum alloy flange one, and an insertion protrusion ring is provided on one side wall of the aluminum alloy flange two. A sealing ring one is provided at the insertion connection between the insertion protrusion ring and the insertion groove, and a sealing ring two is provided at the contact point between the aluminum alloy flange one and the aluminum alloy flange two. The aluminum alloy flange one and the aluminum alloy flange two are fastened together by anti-loosening fasteners. A gap protection seal is provided between the outer surfaces of the aluminum alloy flange one and the aluminum alloy flange two, and a sealing ring three is provided between the gap protection seal and both the aluminum alloy flange one and the aluminum alloy flange two. This application avoids the increase of gap at the connection due to loosening of bolts and nuts, greatly improves the sealing effect, and provides a long-lasting and durable sealing effect.