CN2249344Y - Coal-powder pipe joint - Google Patents

Abstract

The utility model belongs to a connecting device between pipelines, which comprises a main body (8) and a joint (1). The main body and the joint are connected with an adjustable mechanism. In the adjustable mechanism, one end of a ball barrel (4) of which the outer surface is a spherical surface and the inner surface is a convex arc surface is communicated with the main body, and the other end is sheathed on the outside of the joint. A front sheath and a back sheath are arranged outside the ball barrel. The front sheath and the joint are hermetically sheathed with each other. A sealing ring (6) is arranged between the front sheath and the back sheath. A pressing ring is arranged outside the sealing ring. The front sheath and the back sheath are connected together with the adjustable tight mechanism. The length and the angle between the joint and the main body of the utility model can be changed by microdisplacement in order to avoid the problems of pipelines, such as bending, deforming, cracking, etc.

Description

Coal-powder pipe joint

The utility model belongs to connection set between the pipeline (road), is suitable for the pulverized coal channel of cold and hot variation especially, boiler tubing etc.

The pipe connector lug that uses in the existing engineering, body and interface are an integral body, its length, interface angle fix, unadjustable, and many deficiencies are in use arranged: the one, in the installation process, the angle of pipe and joints interface will be aimed at; The 2nd, after installing, because of expanding with heat and contract with cold, length, angle can not be finely tuned, and particularly the tangible coal dust of cold and hot variation, gas pipe line, boiler tubing etc. are not suitable for, and easily make pipe bending, cracking, cause having an accident.

The purpose of this utility model is intended to solve pipe and joints joint microdisplacement problem, and a kind of length, the fine-tuning Coal-powder pipe joint of angle are provided.

The purpose of this utility model has following technological scheme to finish: comprise between body, interface, described body and the interface and adopt adjusting mechanism to be connected, this adjusting mechanism is: one outer for sphere, interiorly connect for ball tube one end and the described body of convex globoidal, the other end is enclosed within outside the described interface, sheath and back sheath before described ball tube outside is provided with, sheath and described sealing joint socket before being somebody's turn to do, between preceding sheath and back sheath, be provided with seal ring, the sealing circle is provided with retainer ring outward, and described preceding sheath and back sheath adopt the adjustable mechanism that tightens up to connect.

Above-mentioned ball tube outer spherical surface also can be convex globoidal, is equal on technical, the using effect.

Above-mentioned seal ring can be one, two etc.

The above-mentioned adjustable mechanism that tightens up can be bolt and nut and tightens up mechanism.

Above-mentioned body can be shapes such as straight tube, curved tube, connects to adapt to various angle pipelines.

The utility model makes the angle of interface and body, length can finely tune variation because of adopting adjusting mechanism, has the adjusting surplus when pipe is installed, and is convenient to install butt joint, so convenient.More important is that pipeline expands with heat and contract with cold, and interface length in the ball tube can be stretched by trace, and angle can be rotated by trace, therefore can avoid pipe bending, distortion, problems of crack.

Fig. 1 is technical solutions of the utility model embodiment 1 a structural drawing.

Further describe-embodiment 1 below in conjunction with accompanying drawing 1: interface 1 is provided with bellows 2 among the figure.Preceding sheath 3 and interface 1 sealing socket, the centre is provided with seal ring.Ball tube 4 and curved cylindrical body 8 welding.Ball tube 4 inner ring faces are convex globoidal, and ball tube 4 is enclosed within outside the interface 1.Preceding sheath 3 is enclosed within ball tube 4 outer front ends, and back sheath 7 is located at outer rear end, is provided with two circle seal rings 6 between preceding sheath 3 and back sheath 7, the seal ring 6 outer retainer rings 5 that are provided with.Adopt bolt and nut to tighten up adjusting between preceding sheath 3 and the back sheath 7.

Claims (3)

1, a kind of Coal-powder pipe joint, comprise body (8), interface (1), it is characterized in that, adopt adjusting mechanism to be connected between described body (8) and the interface (1), this adjusting mechanism is: one outer is sphere, in connect for ball tube (4) one ends and the described body of convex globoidal, the other end is enclosed within outside the described interface (1), described ball tube outside is provided with preceding sheath (3) and back sheath (7), sheath (3) and described interface (1) sealing socket before being somebody's turn to do, between preceding sheath (3) and back sheath (7), be provided with seal ring (6), the outer retainer ring (5) that is provided with of sealing circle (6), described preceding sheath (3) and back sheath (7) adopt the adjustable mechanism that tightens up to connect.

2, Coal-powder pipe joint as claimed in claim 1 is characterized in that: the above-mentioned adjustable mechanism that tightens up is that bolt and nut tightens up mechanism.

3, Coal-powder pipe joint as claimed in claim 1 or 2 is characterized in that: two circles before and after above-mentioned seal ring can be divided into.

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