15 results about "Protruding lips" patented technology

The invention relates to the technical field of electric tools, and provides a suction cup sealing structure which is characterized in that the circumferential edge of the outer ring of an annular sealing part protrudes towards one side to form a first flange part, and a second flange part is formed on the side, in the same direction as the first flange part, of the circumferential edge of the inner ring; a plurality of through holes are formed in the annular face between the first flange part and the second flange part, and a supporting part is embedded in the first flange part. An annular protruding lip edge is arranged on the side face, facing the first flange part, of the through hole, and when the sealing disc is attached to the annular face, the air guide holes in the sealing disc are communicated with the overlapped part of the through hole. And a certain distance and a certain gap are kept between the sealing disc and the annular surface by the convex lips in the other through holes, so that an air passage is formed. The invention further provides the intelligent suction cup, the sealing disc is directly communicated with the through hole through the air guide hole, the sealing adsorption performance is improved through circumferential equal-interval layout, a smooth air channel is formed by ingeniously utilizing an existing structure, the structure is compact, and later disassembly and maintenance work is more convenient.

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.

The utility model discloses a quick plugging connector with an accurate limiting function. The sealing assembly is installed in the connector body, the top cap is arranged on one side of the sealing assembly and used for axially limiting the sealing assembly, and the locking piece is installed at the inserting end of the connector body and used for locking and limiting an inserting piece inserted into the connector body. A butt joint cavity for the insertion of the insertion piece is axially arranged in the joint body; the end, away from the sealing assembly, of the top cap is provided with an annular outwards-protruding lip edge and locking elastic pieces, wherein the locking elastic pieces extend outwards, and the two sides of each locking elastic piece are oppositely arranged. The locking piece comprises limiting blocks which are separated up and down and conduct axial limiting on the inserting piece, the left ends and the right ends of the two limiting blocks are both connected with elastic arms, and the upper elastic arm and the lower elastic arm on the left side and the right side are both connected through a pressure block. According to the utility model, the problem of axial movement of the top cap can be solved, and accurate limiting among the joint body, the top cap and the locking piece can be realized.

The utility model relates to a fuel tank which comprises a tank body, liquid fuel and a wick, the lower end of the wick is immersed in the liquid fuel, a top cover is arranged on the top of the tank body and comprises an easy-to-pull cover and a sealing cover, the easy-to-pull cover is composed of an outer ring and an easy-to-tear piece, the outer ring is connected with an upper opening of the tank body in a sealing mode, and the sealing cover is buckled at the top end of the outer ring in a pressing mode. A tray is arranged on the upper portion of the tank body, the periphery of the tray is connected with the inner wall of the tank body in a sealed mode, at least one fixing nozzle is arranged in the middle of the tray and used for fixing the upper end of a wick, an air hole and a backflow hole are further formed in the tray, the air hole is provided with a protruding lip facing the upper surface of the tray, and the backflow hole is provided with a protruding lip facing the lower surface of the tray. After being opened, the bottle cap can be sealed and closed again to support repeated use; the tray isolates flames from internal fuel, so that the flames are uniform and durable; the air hole automatically adjusts the pressure in the tank, and explosion caused by overheating of the interior of the fuel cavity during combustion is avoided; and the liquid fuel leaking out of the tray can flow back into the tank through the backflow hole.

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 method for the assembly of a stairlift guide rail (100), the method involving the use of a kit comprising a plurality of segments of guide rail, each segment of the plurality of segments comprising a first face (211) and a second face (212), wherein each tapered segment comprises a protruding lip (220) extending from a first one of said first face and said second face, and a second one of said first face and said second face comprising a recess (351) for receiving a lip 220 of an adjacent tapered segment (210), wherein each segment (210) comprises a through-hole (221) extending across said recess (351) and each lip (220) protruding of each segment (210) comprises a through-hole (221), such that when a lip (220) of an adjacent segment (210) is inserted in said recess (351) said through- holes (221) of said lip (220) and said segment (210) are aligned, and the two adjacent segments are joint by inserting a bolt (231) through said aligned through-holes and fixing said bolt with a nut (232), wherein the radial outer surface (472) of the nut (232) comprises a tapered surface (473), such that when the nut (232) is pulled into the through-hole (221) by rotating the bolt (231) the nut (232) acts as a wedge on the lip (220), thereby pulling the lip (220) and the segment (210) attached thereto tightly towards and against the adjacent segment (210).

A pillbox whose body takes the form of a thin cylinder with a shallow body in the middle separated into separate “pockets” by walls erected through the diameter of the body to form two or more equal segments of the body (ambiguous to pizza slices). A circular top and bottom then cover the body in order to have the cylinder sealed off at the top and bottom whilst still being hollow on the inside. The cylinder's ring side lack walls, thus making the segments of the body into cavities of equal sizes whose openings encompass the ring side of the cylinder. A sleeve does, however, wrap snugly around the ring side of the cylinder, possessing a square opening roughly the same size as one of the cavities of the cylinder. The sleeve is then held in place by two protruding lips (one at the top and one at the bottom) of the cylinder due to the top and bottom sides of the cylinder overhanging the ring side itself. Due to this, the ring sleeve cannot move up or down the depth of the cylinder and is thus stuck in place, however, can still rotate around the ring side of the cylinder.

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.

The utility model relates to the technical field of valves, and discloses a clamping sleeve and a soft sealing plug valve, the clamping sleeve comprises a clamping sleeve body, the clamping sleeve body is in a conical barrel shape, two installation windows are arranged on the clamping sleeve body, and the two installation windows are arranged on the two opposite sides of the clamping sleeve body; a plurality of exhaust holes are formed in the clamping sleeve body and located between the two installation windows. Two installation windows are arranged on a cutting sleeve body, the cutting sleeve is fixed to a protruding lip edge of an inlet and an outlet of a valve body in the soft sealing plug valve, and the two installation windows are used for being communicated with a flow channel in the valve body. Due to the fact that the multiple exhaust holes are formed in the clamping sleeve body, after the clamping sleeve is installed on a valve body in the soft sealing plug valve, the multiple exhaust holes are communicated with a cavity between the clamping sleeve and the valve body, the multiple exhaust holes are used for exhausting air in the cavity, the attaching performance of the clamping sleeve and the valve body is guaranteed, and then the sealing effect is guaranteed.

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.

The utility model discloses an air direct pressure pinch valve neck bush lip type closing device which comprises a neck bush body, at least two sections of protruding lip bands are arranged in the middle of the neck bush body, the lip bands are elastic and attached to the inner wall of the neck bush body, the broken portions of the lip bands form lip corner structures, and the lip corner structures are connected with the neck bush body. When the outer side of the neck bush main body is compressed by air to close an inner channel of the neck bush, the inner walls of the lip bands are attached to each other or attached to the inner wall of the neck bush main body to seal the channel; according to the design, a plurality of lip bands are additionally arranged in the channel of the neck bush, and the lip bands of the neck bush have good elasticity, so that the neck bush does not need to be pushed by large air pressure to tightly close the pinch valve through the lip bands, the stress burden of the whole neck bush can be relieved, and the lip angle structure further facilitates the closing effect of the neck bush; the operation condition is improved, the service life is prolonged, the safety of the pinch valve is improved, and driving energy is saved.

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.