CN2136110Y

CN2136110Y - Mark scraper for pipe joint

Info

Publication number: CN2136110Y
Application number: CN 92218018
Authority: CN
Inventors: 胡俊安; 王功建; 储荣春
Original assignee: Maanshan Institute Of Mining Research Ministry Of Metallurgical Industry
Current assignee: Maanshan Institute Of Mining Research Ministry Of Metallurgical Industry
Priority date: 1992-06-03
Filing date: 1992-06-03
Publication date: 1993-06-16
Anticipated expiration: 2002-06-03

Abstract

The utility model discloses a bench work tool which is used for drawing the intersecting line of two pipes, comprising a base, a rotating barrel, a rotating shaft, an index plate, a measuring scale, a sleeve barrel, and a drawing needle. The utility model has parallel and perpendicular special space position, which can draw corresponding intersecting lines for the two pipes with different external diameters and different angles requiring to be welded together. The lines drawing instrument can be widely used for drawing the intersecting lines when the industrial and mining enterprise lays pipe-lines at site. The utility model has the advantages of simple structure, low cost, convenient portability, and simple and practical design, can effectively improve the quality and the work efficiency of the pipes connecting with the pipe joint, and reduce the labor strength.

Description

Mark scraper for pipe joint

A kind of small tool of drawing two pipe intersections is applicable to and draws any two intersections that need pass through the pipe of welding mutually, is specially adapted to on-the-spot assisting when establishing pipeline, draws intersection fast.

On-the-spot at present assisting when establishing pipeline, most of no standard elbows, threeway, four-way etc. are for using, needing is shaped with artificial gas cutting is at any time welded, owing to there is not the line tool of intersection, have to leans on manually by rule of thumb the sample preparation plate or cut during gas cutting, not only require great effort but also time-consuming while trying, and weld shape is irregular, poor welding quality.

The utility model is exactly a kind of small tool at the problems referred to above design, can accurately draw the intersection of any two tubes, takes over effect and quality to improve.

The utility model adopts brand-new design, and critical piece has base, arc-shaped scale, sleeve, rotating shaft, scale slide rule, and parts such as axle sleeve and painter's paraphernalia are formed.Be characterized as the central module that scale slide rule system connects instrument base and painter's paraphernalia, it can be free to slide and fix in the upper end have the rotating shaft of chute, rotating shaft then is inserted in the sleeve that tangles with base, form one with base, the fixed hub that is positioned at scale slide rule one end is enclosed within on the little axle of painter's paraphernalia, form whole, run through base near be milled with ten " word " shape on the pipe one side, section is half garden shape groove, and line-drawing instrument is leaned against on the pipe securely.Painter's paraphernalia integral body is hook, and it colludes handle and is inserted in the axle sleeve of slide rule one end as rotating shaft, can move freely, and the hook lower end is that two bifurcateds are drawn pin.

The geometrical relationship of each parts is: rule is vertical with rotating shaft, tangles between sleeve and the base, can be movable in 180 ° of scopes, and to draw needle point and be positioned on the center line that colludes the handle rotating shaft, axle sleeve is parallel with sleeve centerline.

As shown in drawings, be penetrated with " cross " shape section groove on the bottom surface of base 1, an end is fixed with arc-shaped scale 2, and sleeve 3 connects with base with hinge, angle is shown by arc-shaped scale 2 between sleeve 3 and horizontal line, rotating shaft 4 can move freely in sleeve 3, in the chute on rotating shaft 4 tops that scale slide rule 5 is screwed, can horizontally slip, scale slide rule 5 one end tape spools cover 7, painter's paraphernalia 6 is hooks, colludes handle as the flexible and rotation in axle sleeve 7 of little axle, and drawing the needle point bifurcated is A, B 2 points.

Using method: when drawing intersection, at first adjust base and be close on the pipe, according to angle 2(＜90 of two pipes of setting °) adjusting sleeve pipe 3 conforms to scale.If drawing the external diameter of pipe of intersection is R ₁, another external diameter of pipe is R, adjusts scale slide rule and R ₂Conform to, left hand is pushed down base then, and right-hand push painter's paraphernalia 64 rotates around the shaft, suitably firmly just can draw out and pass through curve mutually, and the method for drafting of another pipe is identical therewith.

Accompanying drawing is embodiment of the present utility model.

Accompanying drawing 1, the whole schematic diagram of pipe joint line-drawing instrument.

Accompanying drawing 2, base upward view

Accompanying drawing 3, base side view

Accompanying drawing indicates: 1, base, 2, arc-shaped scale, 3, sleeve, 4, rotating shaft, 5, the scale slide rule, 6, painter's paraphernalia, 7, axle sleeve, AB draw needle point.

Claims

1, a kind of pipe joint line-drawing instrument that comprises base, draws pin, dial, it is characterized by that the section that runs through whole base is arranged on base and the pipe contact-making surface is the groove milling of half garden shape, base one end is fixed with arc-shaped scale, the sleeve that tangles is housed on the base center, the rotating shaft that has the scale slide rule is contained in the sleeve, and the scale slide rule is vertical with rotating shaft to be installed, and painter's paraphernalia is a hook, colluding point is the picture needle point of two bifurcateds, colludes the handle nature and is inserted in the axle sleeve of scale slide rule one end as little axle.

2, according to the pipe joint line-drawing instrument of claim, it is characterized by in the sliding sleeve or chute that the scale slide rule is contained in rotating shaft upper end, the little shaft centre line of painter's paraphernalia is parallel with shaft centerline, draws on the center line that pin two cusps are positioned at little.