CN2816545Y

CN2816545Y - Connection pipe-piece for external-spreading sawtooth-shape curve face

Info

Publication number: CN2816545Y
Application number: CN 200520044292
Authority: CN
Inventors: 王新德; 黄文博; 王淑诗
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-16
Filing date: 2005-08-16
Publication date: 2006-09-13
Anticipated expiration: 2015-08-16

Abstract

The utility model discloses a connection pipe piece for an external-spreading sawtooth-shaped curve face, which comprises a connection pipe, a connection nut, inner holes of connection joints of a pipeline, wherein the inner holes of the connection joints of the pipeline is provided with a structure which is provided with steps with equal inner diameter to the connection pipe; the inner holes are provided with a tapered gasket which is arranged between the tapered connection joints of the pipeline and the connection pipe. The utility model has the obvious characteristics of convenient connection, firm seal and convenient operation; the work efficiency is enhanced; the utility model puts an end to the defects that an adhesive joint is infirm, the inner diameter is reduced when the utility model is inwards recessed; the water leakage can not happen because of small gaps in the connection; the utility model is free from the influence of overheating. The application range is widened.

Description

A kind of connection pipe fitting that extends out the zigzag fashion curved surface

One, technical field:

A kind of pipeline of the utility model extends out the connection pipe fitting of zigzag fashion curved surface, and what relate to is pipeline and pipeline connecting pipe fitting technical field, is applied to copper pipe, thin-wall stainless steel, stainless steel-plastic composite pipe.

Two, background technique:

At present, the hot-water heating pipe of being supplied on the market adopts traditional galvanized pipe substantially, the pipeline of copper tube, its Placement is continued to use the outer silk of pipeline processing, no matter straight joint, elbow, pipe joints such as threeway, all should connect with pipe joint with internal thread, very easy oxide etch, influenced actual working life, polluted water, aluminium-plastic composite pipe can overcome and reduce water pollution, though using bayonet connection can carry out pipeline connects, owing to reaching in water oxygenization easily intensity is lost in the aluminium skin corrosion of centre, cause plastic-aluminum combined tracheal rupture, leak, again because aluminium-plastic composite pipe is caught a cold by heat expansion to contract easily, time one is of a specified duration, influenced the sealing of bayonet connection, the water leakage phenomenon that is caused happens occasionally, and has influenced applying of aluminium-plastic composite pipe, and what then come is to substitute above-mentioned three kinds of pipeline materials with stainless steel-plastic composite pipe, but, 1-adopts bonding method that pipeline and pipe joint are bonded together, and relates to adhesion technique requirement height, and bonding fastness varies with each individual, relatively lack technical support, be difficult to use in field boundary and close with uniform temperature; 2-adopts at the pipeline material jointing and adds being connected and sealed of pipeline connecting pipe fitting with the method for indent, and the problem of generation is to be cost to sacrifice internal diameter of the pipeline, and connects relative complex, simultaneously, and owing to the slight gap that has in the connection is leaked.

Three, summary of the invention:

A kind of purpose that extends out the connection pipe fitting of zigzag fashion curved surface of the utility model pipeline is improved prior art, the structure of inverter tube pipe connecting, and it is firm to reach long-time connection.Its technology is achieved in that and comprises connecting tube, the attaching nut, the pipe connector lug endoporus is provided with the step that equates with the connecting tube internal diameter in interior structure, it is characterized in that: endoporus is provided with the pipe connector lug of tapering and connecting tube and extends out and be provided with the taper pad between the toothing curved surface.Its tangible advantage is that easy to connect, it is firm to seal, operation is convenient, has improved work efficiency, has stopped the defective that bonding not firm and indent reduces internal diameter, do not leak, be not subjected to the evident characteristic of overheated influence, enlarged application area because of the slight gap that has in connecting.

Four, description of drawings:

Fig. 1 is a kind of structural representation that connects stainless steel-plastic composite pipe embodiment with straight joint;

Wherein, 1-connecting tube, 2-zigzag fashion curved surface, 3-attaching nut, 4-taper pad, 5-pipe connector lug, 6-attaching nut, 7-taper pad, 8-connecting tube;

Five, embodiment:

The utility model is further described by the straight joint connection below in conjunction with accompanying drawing:

See accompanying drawing 1, attaching nut (3), the corresponding direction of attaching nut (6) are inserted in the connecting tube two ends, stainless steel-the plastic composite pipe (1) of expander toothing curved surface (2), (8), the poly-tetrafluoro PVF taper pad (4) of cushioning, (7) between pipe connector lug (5) and connecting tube (1), (8), make attaching nut (3), (6) that to deviate from screw in jointing (5), compress the zigzag fashion curved surface (2) of stainless steel-plastic composite pipe (1), (8), and then compress taper pad (4), (7) and seal.

See accompanying drawing 1, attaching nut (3), the corresponding direction of attaching nut (6) are inserted in the connecting tube two ends, stainless steel-the plastic composite pipe (1) of expander toothing curved surface (2), (8), cushioning is by taper pad (4), (7) of poly-tetrafluoro fluoride material processing between pipe connector lug (5) and connecting tube (1), (8), make attaching nut (3), (6) that to deviate from screw in jointing (5), compress the zigzag fashion curved surface (2) of stainless steel-plastic composite pipe (1), (8), and then compress taper pad (4), (7) and seal.

Whole piping, according to configuration, the jointing of pipeline (5), profile can be different, but the jointing that the endoporus functional structure is identical (5) has straight joint, 90 ° of elbows, equal tee joint, awl footpath tee union, 45 ° of elbow connections, the elbow connection etc. of riding, and the technology of connection is identical with above-mentioned process.

Claims

1. a kind of connection pipe fitting that extends out the zigzag fashion curved surface of the utility model, comprise connecting tube (1), (8), attaching nut (3), (6), pipe connector lug (5) endoporus is provided with the step that equates with connecting tube (1), (8) internal diameter in interior structure, it is characterized in that: endoporus is provided with the pipe connector lug (5) of tapering and connecting tube (1), (8) and extends out and be provided with taper pad (4), (7) between the toothing curved surface (2).

2。According to the described a kind of connection pipe fitting that extends out the zigzag fashion curved surface of claim 1, it is characterized in that: taper pad (4), (7) are polytetrafluoroethylmaterial material.