CN2495885Y

CN2495885Y - Internal expanding ring for blocking leakage of large sized pipeline

Info

Publication number: CN2495885Y
Application number: CN 01262659
Authority: CN
Inventors: 毛政新
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-07
Filing date: 2001-09-07
Publication date: 2002-06-19
Anticipated expiration: 2011-09-07

Abstract

The utility model relates to an internal expanding ring for blocking leakage of large sized pipeline. The utility model is characterized in that the internal expanding ring is formed by connecting at least three arc internal expanding ring bodies[1]; the ends of the two neighboring internal expanding rings are connected through a pivot shaft; and when the utility model is opening, the at least three arc internal expanding ring bodies[1] form a closed round ring shape. The sectional are of the internal expanding ring is greatly decreased after folding the at least three internal expanding ring bodies, so that the internal expanding ring can be inserted into the pipeline. When the internal expanding ring is unfolded again, the external wall surface of the internal expanding ring can go against the inner wall surface of the pipeline, which makes the internal expanding ring be tightly fastened on the inner wall of the pipeline so as to promote the function of stopping leakage.

Description

Packing in the large-scale pipeline

The utility model relates to a kind of mending-leakage circle of pipeline.

In the prior art, large-scale liquid-transport pipe-line when for example drainage pipeline causes leaking being damaged, generally is to carry out mending-leakage at its outside cement of sticking with paste, this craft leakage mending method can leak after the length slightly once more in the time, does not therefore still have at present good method pipeline is advanced long mending-leakage.

The purpose of this utility model is to provide packing in a kind of large-scale pipeline, makes it to possess the effect that mending-leakage is easy and simple to handle, endurance is good.

The technical solution of the utility model is: packing in a kind of large-scale pipeline, it is connected by the interior packing body of three sections arcs forms at least, phase pivot connection between the end of packing body in the two neighboring sections, under open state, the interior packing body of described at least three sections arcs constitutes closed round ring shape.

The utility model compared with prior art has following advantage:

After the inside folding of packing at least three sections, its sectional area greatly reduces, then in packing can stretch in the pipeline, after opening interior packing again, then the outer wall surface of interior packing can be against the inner wall surface of pipeline, and packing swelling firmly reaches the effect of leak stopping in making on inner-walls of duct.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing 1 is a plan view of the present utility model;

Accompanying drawing 2 is an A of the present utility model place zoomed-in view;

Accompanying drawing 3 is the three-dimensional structure diagram of the utility model under half folding state; Wherein:

[1], interior packing body; [2], rotatingshaft; [3], hinge; [4], locating slot; [5], seam;

Embodiment: referring to accompanying drawing 1 to accompanying drawing 3, packing in a kind of large-scale pipeline, it is connected by the interior packing body [1] of three sections arcs forms at least, generally be that interior packing body [1] is formed by 3 to 6 sections, it in accompanying drawing 1 and the accompanying drawing 3 packing body [1] in five sections, in the two neighboring sections between the end of packing body [1] phase pivot connect, in accompanying drawing 3, pivotally connected in the described two neighboring sections between the end of packing body [1] for pivotally connected with hinge [3].Under open state, the interior packing body [1] of described at least three sections arcs constitutes closed round ring shape, as shown in Figure 1.

Shown in accompanying drawing 2, in the described two neighboring sections end joint [5] of packing body [1] locate into

The shape interface, packing body [1] is in the higher intensity of seam crossing tool in making.

As shown in Figure 3, along the circumferential direction be provided with two locating slots [4] on the outer wall of packing body [1] in described, can two seal rings of phase embedding in these two locating slots [4], between two seal rings, be filled with sealing materials such as polyurethane.

Claims

1, packing in a kind of large-scale pipeline, it is characterized in that: it is connected by the interior packing body [1] of three sections arcs forms at least, phase pivot connection between the end of packing body [1] in the two neighboring sections, under open state, the interior packing body [1] of described at least three sections arcs constitutes closed round ring shape.

2, packing in the large-scale pipeline according to claim 1 is characterized in that: connect by hinge [3] phase pivot between the end of packing body [1] in the described two neighboring sections.

3, packing in the large-scale pipeline according to claim 1 is characterized in that: packing body [1] is formed by 3 to 6 sections in described.

4, packing in the large-scale pipeline according to claim 1 is characterized in that: in the described two neighboring sections end joint [5] of packing body [1] locate into

The shape interface.

5, packing in the large-scale pipeline according to claim 1 is characterized in that: along the circumferential direction be provided with two locating slots [4] on the outer wall of packing body [1] in described.