Threaded plug

Abstract

The invention relates to a threaded plug for the outflow opening of a fluid-conducting housing, said threaded plug comprising a cylindrical screw-in section (1) with an external thread (2) and a A contact flange (3) at the end of the insertion section (1) that is enlarged relative to the outer diameter of the screw-in section (1). The screw-in section ( 1 ) is designed together with the contact flange ( 3 ) as a one-piece injection-molded plastic part of uniform material and is closed at one end with a base ( 4 ). A recess (6) extends centrally in the longitudinal direction through the abutment flange (3) and the screw-in section (1) as an inner engagement for a tool, the recess (6) at The base ( 4 ) ends and has an insertion opening ( 7 ) for the tool located opposite the base ( 4 ). The abutment flange (3) has at its outer periphery an outer engagement (8) for a tool, wherein a bezel is formed between the outer engagement (8) and the inner engagement (6). Circumferential inner recess (12) with flange aperture (14). In the transition region between the abutment flange (3) and the screw-in section (1) there is such a wall configuration that in the screwed-in state of the screw-in section (1) and the In the abutting state of the abutment flange (3), for the splitting of the abutment flange (3) due to the increased splitting torque at the external acting part (8) relative to the permissible tightening torque, the Viewed in the screwing-in direction (X), in the region of the end of the screw-in section (1) and behind the base (4), a tear-off region is formed so that, during tear-off, the thread plug The power flow inside the head does not extend through said bottom (4). There is such an extremely small engagement length (L) of the recess (6) for the inner action part that the screw plug can be released by means of a tool inserted into the inner action part (6). head.

Description

technical field [0001] The invention relates to an outflow orifice of a housing for guiding a fluid A threaded plug (Verschlussschraube) comprising a cylindrical screw-in section with an external thread and an abutment at the end of the screw-in section enlarged relative to the outer diameter of the screw-in section Flange, wherein the screw-in section is designed together with the abutment flange as a one-piece plastic injection-molded part of the same material and is closed at one end with a bottom and serves as a tool for the The recess of the inner action part (Innenangriff) extends in the longitudinal direction in the middle through the contact flange and the screw-in section, said recess ends at the bottom and has a tool for the opposite bottom Insert the orifice. Background technique [0002] A screw plug for hydraulics of the type described above is known, for example, from application document DE 10 2013 101 972 A1. Such threaded plugs are used, for example, in ...

AI Technical Summary

Problems solved by technology

However, the stop body is thus weakened so that the necessary tightening torque and the required tearing torque cannot be achieved here either.

There is therefore the risk that, if the stop body breaks open, hydraulic fluid, for example, can escape uncontrollably from the open screw-in section remaining in the screw-in opening.

Furthermore, it is difficult to unscrew the screw-in section without a stop body

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