JPS62161522U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of a tool according to an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of a fireproof airtight unit installed in a wall through hole, and Fig. 3 is a jig for inserting electric wires. The symbols in the front view of the figure are as follows. 1: Nut, 2: Screw shaft, 3: Bearing box, 4: Bearing, 5: Bracket, 6: Motor, 7: Output shaft, 8: Gear,
9: Gear, 10: Key, 20: Wall through hole, 21
: Fireproof airtight unit, 22: Fireproof layer, 30: Wire insertion jig, 31: Arrowhead, 32: Half pipe, 3
3: Rear end.

Claims (1)

[Scope of utility model registration request] Asbestos foam is placed closely at both ends of the frame, rods for pressing the asbestos foam are appropriately placed on both sides of the asbestos foam, and electric wires are passed through the asbestos foam and solidified over time in the central space of the frame. When forming a fireproof airtight penetration by injecting a liquid airtight sealant,
A tool for pre-inserting an electric wire insertion jig consisting of a half-split pipe with an arrowhead attached to the tip, which is used for piercing an electric wire through an asbestos foam, wherein a nut that fits into the rear end of the electric wire insertion jig is a screw shaft. The screw shaft is supported by a bearing box at the rear end, and a motor is attached to the screw shaft side of the bracket extending from the bearing box, and the motor transmits the screw shaft through a rotational force transmitting means. A tool for penetrating electric wires into a fireproof and airtight penetration part, characterized in that the tool is configured to drive a wire.