CN2479340Y

CN2479340Y - Joint of aluminium-plastic pipe

Info

Publication number: CN2479340Y
Application number: CN 01236376
Authority: CN
Inventors: 李西长
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-04
Filing date: 2001-04-04
Publication date: 2002-02-27
Anticipated expiration: 2011-04-04

Abstract

The utility model provides a pipe joint of a plastic-aluminum pipe, comprising a pipe core (1), wherein the pipe core (1) is arranged with a lining pipe (2) which is sleeved with the plastic-aluminum pipe, the lining pipe (2) is equipped with a seal ring (3) which is installed in a chase of the seal ring, a tight nut which is engaged and connected with the pipe core (1), and the inner of the tight nut is provided with collars. The improvement is that the tight nut engaged and connected with the pipe core (1) is a front end tight nut (4), and a rear end tight nut (5) engaged and connected with the front end tight nut (4) is provided, and the front end tight nut (4) and the rear end tight nut (5) are arranged with the collars (6). The utility model has the advantages that the pipe joint is non-leakage and non-disjunction.

Description

A kind of pipe joint of plastic-aluminum pipe

The utility model relates to a kind of pipeline connecting parts, particularly the pipe joint of plastic-aluminum pipe.

The plastic-aluminum pipe is owing to have anticorrosive, flexibility is convenient to advantages such as installation well, be widely used in the pipeline installation, at present, the pipe joint of known plastic-aluminum pipe, it comprises a tube core, has the lining pipe that connects with the plastic-aluminum pipe box on the tube core, have a seal ring that is installed in the o-ring groove on the lining pipe, have a tightening nut that is connected with tube core, be equipped with in the tightening nut and can be stuck in lead and mould the collar of managing on the outer wall.The pipe joint of this structure, collar and seal ring can only tighten and seal the front end of plastic-aluminum pipe and lining pipe belled position under the effect of tightening nut, under the bigger situation of the pressure of pipeline range of temperature big or pipeline, leak easily, perhaps plastic-aluminum tube and tube joint disconnects.

The purpose of this utility model is to provide a kind of joint of plastic-aluminum pipe, to overcome the deficiency of known technology.

The utility model is achieved in that a kind of pipe joint of plastic-aluminum pipe, it comprises a tube core (1), has the lining pipe (2) that connects with the plastic-aluminum pipe box on the tube core (1), has the seal ring (3) that is installed in the o-ring groove on the lining pipe (2), has the tightening nut that is connected with tube core (1), collar is housed in the tightening nut, its improvements are that joining the tightening nut that is connected with tube core (1) is front end tightening nut (4), have a rear end tightening nut (5) that is connected with front end tightening nut (4), in front end tightening nut (4) and the rear end tightening nut (5) collar (6) is housed.

The pipe joint of plastic-aluminum pipe of the present utility model can be that pipe joint is a bilateral pipe list joint, and an end of tube core (1) has the lining pipe (2) that connects with the plastic-aluminum pipe box, and the other end has the screw thread that is connected with pipe fitting.

The pipe joint of plastic-aluminum pipe of the present utility model can be that pipe joint is a bilateral pipe twin adapter, and respectively there is a lining pipe that connects with the plastic-aluminum pipe box (2) at the two ends of tube core (1).

The pipe joint of the plastic-aluminum pipe that the utility model provides, owing to have front end tightening nut and rear end tightening nut, cooperate two seal rings on the lining pipe of collar and tube core, can realize the lining pipe belled position two ends fit sealing of plastic-aluminum tube and tube core, have the advantage of not leaking, not disconnecting.

Fig. 1: the half sectional view of the general assembly drawing of a kind of structure of pipe joint of the utility model plastic-aluminum pipe.

Fig. 2: the half sectional view of the tube core (1) of the another kind of structure of the pipe joint of the utility model plastic-aluminum pipe.

The utility model is described in further detail in conjunction with the embodiments with reference to accompanying drawing.

Embodiment 1, and Fig. 1 has provided a kind of concrete structure of the utility model.Consult Fig. 1, a kind of pipe joint of plastic-aluminum pipe, it comprises a tube core (1), has the lining pipe (2) that connects with the plastic-aluminum pipe box on the tube core (1), have two seal rings (3) that are installed in the o-ring groove on the lining pipe (2), have a front end tightening nut (4) that is connected with tube core (1), have a rear end tightening nut (5) that is connected with front end tightening nut (4), in front end tightening nut (4) and the rear end tightening nut (5) collar (6) is housed.What present embodiment provided is bilateral pipe list joint, and an end of tube core (1) has with the plastic-aluminum pipe box and connects lining pipe (2), and the other end has the screw thread that is connected with pipe fitting, the pipe joint of this structure, can by with being connected of other pipe fitting, finish the connection of pipeline.

Embodiment 2, Fig. 2 has provided the concrete structure of bilateral pipe twin adapter tube core (1) of the pipe joint of the utility model plastic-aluminum pipe, respectively there is a lining pipe that connects with the plastic-aluminum pipe box (2) at the two ends of tube core (1), cooperate seal ring (3), front end tightening nut (4) and rear end tightening nut (5) and the collar (6) of structure shown in Figure 1 to constitute a bilateral pipe twin adapter, be used for the butt joint between the plastic-aluminum pipe.

The above-mentioned embodiment who provides is that technical solutions of the utility model are not limited to the foregoing description to the further specifying of technical solutions of the utility model.Those skilled in the art can set out various multiple way unions according to the technological scheme that the utility model provides.

Claims

1, a kind of pipe joint of plastic-aluminum pipe, it comprises a tube core (1), has the lining pipe (2) that connects with the plastic-aluminum pipe box on the tube core (1), has the seal ring (3) that is installed in the o-ring groove on the lining pipe (2), has the tightening nut that is connected with villous themeda core (1), collar is housed in the tightening nut, it is characterized in that the tightening nut that is connected with villous themeda core (1) is front end tightening nut (4), have a rear end tightening nut (5) that is connected with front end tightening nut (4), in front end tightening nut (4) and the rear end tightening nut (5) collar (6) is housed.

2, the pipe joint of plastic-aluminum pipe according to claim 1 is characterized in that pipe joint is a bilateral pipe list joint, and an end of tube core (1) has the lining pipe (2) that connects with the plastic-aluminum pipe box, and the other end has the screw thread that is connected with pipe fitting.

3, the pipe joint of plastic-aluminum pipe according to claim 1 is characterized in that pipe joint is a bilateral pipe twin adapter, and respectively there is a lining pipe that connects with the plastic-aluminum pipe box (2) at the two ends of tube core (1).