7 results about "Protruding lips" patented technology

This application discloses a valve stem sealing structure, relating to the field of valve stem sealing technology, including a valve body and a gland. The gland is fastened to the valve body by bolts, and a sealing groove is formed on the upper part of its inner wall, housing an O-ring that fits onto the valve stem. A sealing cavity is formed on the inner wall of the valve body, and multiple sealing modules are provided, including, from top to bottom, a dynamic seal, an elastic sealing assembly, a pair of wedge-shaped sealing packings, and a flexible graphite braided packing. The elastic sealing assembly includes an upper support, a lower support, and a spring disposed between them. Tightening the bolts generates an axial preload, driving the inner and outer protruding lips of the dynamic seal to press tightly against the valve stem and the inner wall of the sealing cavity, respectively, and compressing the sealing packings and packing. This structure, through multiple sealing combinations, significantly improves the reliability, stability, and leakage resistance of the valve stem seal.

A panel, which, at two opposite edges, includes coupling parts that allow joining by a downward movement, the coupling parts including a male part that fits in a female part, wherein the male part comprises a laterally protruding lip with at a lower side a downward facing support surface.

To provide a gasket that can suppress corrosion of the contact surface to which it is applied. [Solution] The sealing device 1 comprises an elastic body portion 2 formed from an elastic material. The elastic body portion 2 has a fitting portion 10 which is an annular part, a lip 20 which is an annular part that protrudes inward from the fitting portion 10, and an annular first projection 30. The lip 20 protrudes inward from the inner end portion 10a of the fitting portion 10, inclined inward. The length l of the protruding lip 20 is set based on the minimum crushing allowance c when the pipe is maximally eccentric with respect to the through hole. The first projection 30 protrudes inward from the inner end portion 10a of the fitting portion 10.

The invention provides a fitting for a window, comprising a fitting assembly (1) attachable in a fitting groove (7) provided in a window profile (8), a rotatable arm (2) having a shaft channel (15), and a shaft (3) having a widened head (24) at one end and a radially projecting lip (25) at the other end. The fitting assembly is provided with a body (5) and a passage opening (14). In the assembled state of the fitting, the arm is rotatably connected to the main body of the fitting assembly with the lip of the shaft hooked on the main body using the shaft disposed in the channel opening and the shaft channel, with the main body and the arm being enclosed between the lip and the widened head of the shaft.

A panel, which, at two opposite edges, includes coupling parts that allow joining by a downward movement, the coupling parts including a male part that fits in a female part, wherein the male part comprises a laterally protruding lip with at a lower side a downward facing support surface.

A panel, which, at two opposite edges, includes coupling parts that allow joining by a downward movement, the coupling parts including a male part that fits in a female part, wherein the male part comprises a laterally protruding lip with at a lower side a downward facing support surface.