JPH02100710U

JPH02100710U -

Info

Publication number: JPH02100710U
Application number: JP648789U
Authority: JP
Priority date: 1989-01-25
Filing date: 1989-01-25
Publication date: 1990-08-10

Description

[Brief explanation of drawings]

第１図は、本考案の作業状態を示す断面図、第
２図はガイド桿のみを断面にした平面図、第３図
は既設管の湾曲部分に於ける斜視図である。符号の説明、１…既設管、３…マンホール、４
…削錆機、５…本体、６…回転体、８…バイト、
９…エアホース、１０…ガイド桿、１２…ノズル
孔、１４…ウオータホース、１５…連結材、１６
…ワイヤー。 FIG. 1 is a sectional view showing the working state of the present invention, FIG. 2 is a plan view showing only the guide rod in section, and FIG. 3 is a perspective view of the curved portion of the existing pipe. Explanation of symbols, 1... Existing pipe, 3... Manhole, 4
... Rust scraper, 5... Main body, 6... Rotating body, 8... Bit,
9... Air hose, 10... Guide rod, 12... Nozzle hole, 14... Water hose, 15... Connecting material, 16
…wire.

Claims

[Scope of claims for utility model registration] 1. Manholes 3 provided at predetermined intervals
A rod-shaped device that moves forward and backward in an existing pipe 1 that is buried underground and whose end is exposed in a manhole 3, and cuts away rust that has adhered to the inner circumferential surface of the existing pipe 1. A shaft is provided in the main body 5 of the main body 5 to rotate via a predetermined power source, and a rotary body 6 is provided on the shaft protruding from the rear end of the main body 5, with a cutting tool 8 etc. protruding from the outer peripheral surface. A rust scraper 4 is coaxially fixed, and a plurality of nozzle holes 12 are formed on the peripheral edge of the rear face, which is located on the forward side of the rust scraper 4 and is an end face facing the rust scraper 4, through which water is spouted. A rust removal device for an existing pipe, which has a relatively heavy guide rod 10, and the rust scraper 4 and the guide rod 10 are connected by a flexible connecting member 15 having excellent strength. 2 At the front end of the hollow main body 5, there is a manhole 3 in front.
2. The rust removal device for existing pipes according to claim 1, wherein the main body 5 is an air motor, and the main body 5 is an air motor. 3. The rust removal device for an existing pipe according to claim 1, wherein the tip of the water hose 14 introduced from the manhole 3 is communicatively connected to the guide rod 10. 4. The rust removal device for existing pipes according to claim 1, wherein the connecting member 15 is constituted by a coil spring in which a wire having a large diameter is wound. 5. Attach the wire 16 introduced from the front manhole 3 to the front end of the guide rod 10, and
Wire 16 introduced from rear manhole 3
according to claim 1, wherein the guide rod 10 and the rust scraper 4 are moored to the rear end of the rust scraper 4, and the combination of the guide rod 10 and the rust scraper 4 is moved forward and backward within the existing pipe 1 by winding the wire 16. Rust removal equipment for existing pipes.