CN201237031Y

CN201237031Y - Composite pipe fittings

Info

Publication number: CN201237031Y
Application number: CNU2008200120535U
Authority: CN
Inventors: 王振宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-10
Filing date: 2008-04-10
Publication date: 2009-05-13
Anticipated expiration: 2018-04-10

Abstract

The utility model relates to a composite pipe. A graduated scale is arranged on the outer surface of the composite pipe along the length direction of the composite pipe. The pipe can be cut by an operator by the size on the scale accurately according to the drawing or the size measured on the spot without manual measurement. Accordingly, the composite pipe with the structure can obviate the pipe length measurement procedure and reduce manpower.

Description

A kind of composite pipe fitting

Technical field:

The utility model relates to a kind of composite pipe fitting that is made of plastics and metal.

Technical background:

Composite pipe fitting is meant the pipe fitting that is combined with each other in mutually nested mode by two or more material.The most frequently used composite pipe fitting has metal tube (as steel pipe) and the compound structure of plastic tube in the prior art, outer and/or the internal surface that is metal tube is compounded with plastic layer, this composite pipe fitting has anti-erosion and the low characteristic of cost, is widely used in all fields such as building, chemical industry and metallurgy.Owing to be subjected to the restriction of institute's laying work area geographical environment when laying pipeline with composite pipe fitting, cause the integral layout of each bar pipeline to be not the same or close, the length of laying pipeline riser part of needed each minute also is not quite similar, and promptly laying each bar pipeline all needs constituting the program that each section of pipeline carries out in-site measurement, cutting, connection pipe fitting.

For this reason, lay pipeline at the scene, especially during the pipeline in laying building or structure, the operator at first will or measure on the spot each section pipeline size according to each section pipeline size of being indicated on the drawing, indicate that according to drawing size or field survey size determine the length of required pipe fitting then, again multiple tubing element is axially coupled together to form pipeline.Because the finished product pipe fitting of selling on the market all is the isometric structures of scale, and scale pipe fitting and combination thereof can not be complementary with the length of the required pipeline of each section, so the unique scheme that solves the length matching problem is a cutting pipes, makes it can reach predetermined length.

Composite pipe fitting of the prior art, owing on its surface any length mark is not set, when cutting pipes, operator are after clear and definite drawing is indicated size or field survey size, at least need two human length scales to measure the length of precut pipe fitting, and on this pipe fitting, marked the relevant position, just can cut then.This shows that adopt the pipe fitting of this kind structure to lay pipeline, the problem that at first reflects is waste of manpower, because of it is measured and cutting pipes needs two operator at least; Next is that and tape measure can remain with small radian under extended configuration because length scales adopts tape measure usually, and the free end of tape measure after launching very easily depart from the center line of pipe fitting, causes to measure certain error to occur; In addition, owing to be cut in the disconnected pipe fitting, have only one section quilt wherein in time to be installed in the pipeline, and another section as need be utilized the time, because it does not have dimension mark, so, want to utilize this part pipe fitting, also need carry out the second time and measure, and then further increase programmed sequence of operations.

Summary of the invention:

Task of the present utility model provides a kind of the utilization visually just can judge the composite pipe fitting of cutting position with convenient construction exactly.

The outer surface of the composite pipe fitting that the utility model proposed and be provided with scale formula scale along the length direction of pipe fitting.

Scale formula scale on the described composite pipe fitting outer surface is the outer surface that is printed on pipe fitting by ink jet numbering machine.The outer surface of described composite pipe fitting and have certain distance ground also to be printed with manufacturer's mark with scale formula rod interval.

The outer surface scale formula scale of the composite pipe fitting that the utility model proposed, the operator can be according to indicating on the scale that size is exactly according to the size cutting pipes of drawing or field survey, and do not need to cut again behind the manual measurement, so, use the pipe fitting of this kind structure can save operation and the manpower of measuring pipe range; Simultaneously, because of the scale formula scale on the pipe fitting can be printed on the surface of pipe fitting in the mode of spraying by ink jet numbering machine, so this composite pipe fitting increases fabricating cost hardly; In addition, also be marked with size on the remaining pipe fitting owing to be cut, this residue pipe fitting easily utilizes again, and then can save raw material.

Description of drawings:

Accompanying drawing 1 is the embodiment's of composite pipe fitting that proposes of the utility model a surface structure schematic representation.

Embodiment:

Referring to Fig. 1, this figure provides the embodiment's of composite pipe fitting that the utility model proposes surface structure.This composite pipe fitting 1 can be made of the plastic pipe 12 on the metal pipe element 11 (as steel pipe) and the surface that sets within it, at the scale formula that the is provided with scale 13 of composite pipe fitting 1 outer surface axial and elongatedly, this scale formula scale 13 can be printed on the outer surface of composite pipe fitting 1 with it by ink jet numbering machine.The outer surface of composite pipe fitting 1 and and 13 on scale formula scale be separated with certain distance ground and also be printed with manufacturer's mark 14, manufacturer's mark 14 can comprise producer's title and factory site, and telephone number.

Claims

1, a kind of composite pipe fitting is characterized in that: the outer surface of this composite pipe fitting and be provided with scale formula scale along the length direction of pipe fitting.