CN2365494Y

CN2365494Y - Connector of pipe

Info

Publication number: CN2365494Y
Application number: CN 98245658
Authority: CN
Inventors: 袁忠定
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-18
Filing date: 1998-11-18
Publication date: 2000-02-23
Anticipated expiration: 2008-11-18

Abstract

The utility model relates to a pipe joint designed for optimizing tightness, simplifying structure and reducing cost. The pipe joint comprises a pipe joint body (2). The utility model is characterized in that an inserting part which is inserted into a soft pipe is arranged on one end of the pipe joint body, the end is connected with the soft pipe, and the outer surface of the inserting part is provided with a plurality of annular grooves (3). When the inserting part is inserted into a pipe, a hoop ring (1) is sheathed, and the soft pipe (4) is clamped and fastened by a fastening caliper. The utility model has the advantages of good tightness, small size, simple installation and low cost, is suitable for the rapid connection of aluminum plastic composite pipes, such as the rapid connection between soft pipes or the rapid connection between soft pipes and hard pipes.

Description

Pipe joint

The utility model relates to a kind of pipe joint technical field.

Along with scientific and technological progress, polyethylene pipe, aluminium-plastic composite pipe progressively enter people's daily life, and this pipe need adopt new pipe joint.As the Chinese patent " pipe joint device " of the patent No. 93206405.1, it comprises pipe joint, packing ring, spiral shell seat; The engaging body surface of pipe joint is provided with annular groove, sheathed elasticity watertight circle on the annular groove, and elasticity watertight circle places on the annular groove and protrudes engaging body slightly, and the inner face of packing ring is provided with several raised lines.This pipe joint has quick, the firm characteristics of connection, but its structure is complicated, and material is difficult for saving, cost height.

The purpose of this utility model is to provide a kind of good airproof performance, simple in structure, processing accessories is few, cost is low pipe joint.

The technical solution of the utility model is to realize like this.This pipe joint comprises union body, it is characterized in that described pipe joint connects flexible tube one end the insertion portion that inserts in the flexible tube is arranged, the insertion portion outer surface has a plurality of annular grooves, in its insertion tube after, put shell ring again, tighten fixedly flexible tube with fastening clamp.

The aforementioned tube fittings body connects hard tube one end can have outside thread or internal thread; That union body can be made is straight-through, elbow or three-way type union body; Above-mentioned annular groove is preferably 3～6; Above-mentioned flexible tube can be crosslinked polyethylene PEX pipe or crosslinked aluminium-plastic composite pipe.

This pipe joint has 1. good airproof performances, through Shanghai City structural material and component quality supervision and check station AJ98～409 tests, reaches 20 ℃, 5.0MPa, and the 15Min ne-leakage does not have destruction; 2. volume is little, because part is few, taking up room is 1/4～1/5 of original screw thread FERRULETYPE joint; 3 install simply, understandable, with special-purpose fastening clamp the red copper hoop are tightly got final product; 4. material is economized, equal specification, and every materials amount is 1/3 of a screw thread FERRULETYPE, can be country and saves a large amount of copper materials; 5. price is honest and clean, and the comparable original screw thread FERRULETYPE of cost reduces about 1/3～1/2.

Description of drawings:

Fig. 1. the utility model pipe joint partly cuts open sectional view.

Below in conjunction with description of drawings embodiment of the present utility model is described further.

As shown in the figure, this pipe joint comprises union body 2, and union body connects flexible tube 4 one ends the insertion portion that inserts in the flexible tube, the insertion portion outer surface has a plurality of annular grooves 3, is preferably 3～6, in its insertion tube after, put shell ring 1 again, block fixedly flexible tube with fastening clamp.That this union body can be made is through-type, curved head type or three-way type union body, connects hard tube one end and can be outside thread or internal thread.This pipe joint can be connected the occasion use between crosslinked polyethylene PEX pipe or crosslinked aluminium-plastic composite pipe and so on flexible tube and flexible tube, flexible tube and hard tube.

Claims

1. pipe joint, comprise union body (2), it is characterized in that described union body connects flexible tube (4) one ends the insertion portion that inserts in the flexible tube is arranged, the insertion portion outer surface has a plurality of annular grooves (3), after in its insertion tube, put shell ring (1) again, tighten fixedly flexible tube with fastening clamp.

2. pipe joint as claimed in claim 1 is characterized in that described union body connects hard tube one end and can have outside thread or internal thread.

3. pipe joint as claimed in claim 1 or 2 is characterized in that described union body can be through-type, curved head type or three-way type union body.

4. pipe joint as claimed in claim 1 is characterized in that described annular groove is preferably 3～6.

5. pipe joint as claimed in claim 1 is characterized in that described flexible tube can be crosslinked aluminium-plastic composite pipe or crosslinked polyethylene PEX pipe.