Directly sealed steel drum and sealing and fixing methods

Abstract

The invention relates to a directly sealed steel drum, belonging to the field of packing steel drums; a top cover of the steel drum is provided with two symmetrically distributed filling openings of a G2 directly sealed embedded flange sealer. The technical proposal of the invention is as follows: a straight pipe 21 of a flange coil 16 is enclosed by an octagonal convex plate 5 which is at the top part of the steel drum, is provided with a convex plate edge 7 and is positioned on the extending part of the drum top cover 1; a cone-shaped combined convex plate coil 26 is formed under the extrusion of a cone-shaped lock installation mold; the flange coil 16 is isolated and riveted inside the steel drum to be used as an internal thread and a positioning device; the top cover 1 of the steel drum serves as an isolated layer and becomes a directly sealed contact surface; when a cone-shaped step drum plug 29 is mounted with a rubber gasket 38 and is screwed into the flange coil 16 in the steel drum, the top cover of the steel drum 1 directly contacts the cone-shaped step drum plug 29 to form the steel drum embedded flange sealer which is directly sealed and has a rigid clamping connection structure, so that no leakage occurs even when the steel drum is struck or falls off in the processes of transportation, loading and unloading. The directly sealed steel drum adopts two G2 filling openings, so that the steel drum has more functions; the work efficiency is higher in repeated use, renovation and cleaning of the steel drum and the cleanliness inside the drum is better. The invention further provides a sealing method and a fixing method of the directly sealed steel drum.

Description

technical field [0001] The invention relates to a directly sealed steel drum in the field of packaging steel drums. The steel drum uses the top cover of the drum as a sealing surface, directly contacts with the bung, and forms a directly sealed steel drum with an embedded flange closure under the action of a rubber gasket. , The present invention also provides a sealing method and a fixing method for a directly sealed type steel drum. Background technique [0002] 216.5 liters (208 liters in China) closed steel drums are currently the most widely used packaging steel drums in the world. They all use G2 (non-sealed pipe thread size code) closures as liquid injection ports (also discharge ports), and G3 / 4 The closure is used as a vent. The Chinese steel drum standard GB / T 325-2000, the European steel drum standard EN 210: 1999, and the international steel drum standard ISO 15750-2: 2002 all make reference to the structure, size and performance of closed steel drums. specific...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a steel drum embedded flange sealer based on the above-mentioned indirect sealing and elastic clamping connection structure that does not leak when the steel drum is impacted and dropped, and the top cover of the drum is seriously deformed. Embedded flange closure steel drum with direct sealing, rigid clamping connection structure and sealing and fixing method

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