CN2394080Y

CN2394080Y - Flexible joint for steel plastic pipe

Info

Publication number: CN2394080Y
Application number: CN 99252941
Authority: CN
Inventors: 金明虎
Original assignee: 金秀男
Priority date: 1999-11-09
Filing date: 1999-11-09
Publication date: 2000-08-30
Anticipated expiration: 2009-11-09

Abstract

The utility model provides a movable joint, which is used for butting of an iron pipe and a plastic pipe. The movable joint is composed of an iron external thread joint, a rubber pad, an internal thread external sleeve, and a plastic welding joint. One end of the plastic welding joint is provided with an internal through diameter surface which is sheathed with the rubber pad and a sealing convex edge surface which forms sealing match with a thread plugging surface of the end head portion of internal threads of the internal thread external sleeve, and the other end of the plastic welding joint can be welded with the plastic pipe which needs to be connected. The utility model has the advantages of simple structure, beautiful appearance, low cost, convenient and rapid construction, labor saving, reduced labor intensity, and shortened construction period.

Description

The steel plastic pipe union

The utility model relates to the union that a kind of irony pipe and plastic tube connect.

At present the utilizing in the process of water, transfer equipment such as source, transfer, terminal and parts are irony tubing mostly.Irony tubing is perishable, forms dirt, inconvenient maintenance.The development of new material has brought a lot of benefits to human society, wherein polymer tubing uses at the water source and has played development function, relative irony tubing, have more superiority at aspects such as anticorrosion, durable, water quality purity, construction intensities, thus polymer tubing on application more and more widely.Yet polymer tubing and irony tubing but have very hang-up when connecting.In the middle of the small diameter tube unit construction, regular standard steel plastic pipe material interfacing part is not arranged as yet at present.Normally dock by force with the ironware joint, the irony joint structure is to be made of the inside and outside wire connection head of irony and rubber pad, cap nut, and butt joint increases working strength by force, ensures that coefficient is little.

The purpose of this utility model provides the union that the irony pipe and the plastic tube of a kind of simple in structure, low cost of manufacture, easy construction correctly dock.

The technical solution of the utility model is as follows:

Adopt irony nipple, rubber pad and internal thread overcoat in general iron pipe and the union that iron pipe docks, increase again and include the polymer welded joint, polymer welded joint one end is provided with prominent stupefied of the sealing that the interior latus rectum face of socket rubber pad and plug face with internal thread overcoat female end head part be sealed and matched mutually, and the other end of polymer welded joint can weld with plastic tube to be connect.

The utility model has adopted iron pipe and has moulded the mode that pipe butt joint screw is reinforced, and has guaranteed polymer tubing and irony tubing fully, the flexible connection of iron parts.The utility model is simple in structure, handsome in appearance, cost is low, and convenient and quick construction is saved the labour force, reduces labor intensity, the reduction of erection time, has promotional value.

Below in conjunction with accompanying drawing embodiment of the present utility model is further described:

Fig. 1 is a sectional drawing of the present utility model.

Fig. 2 is the utility model part ssembly drawing.

The outside thread of irony nipple 1 one ends matches with the internal thread of internal thread overcoat 3, its the other end can be established internal thread, also can establish outside thread, dock with irony tubing to be connect, polymer welded joint 6 adopts PP-C (polypropylene) plastic material, latus rectum face 2 and sealing were prominent stupefied 5 in polymer welded joint 6 one ends were provided with, interior latus rectum face 2 socket rubber pads 4, prominent stupefied the 5 plug face 7 with internal thread overcoat 3 female end head part of sealing is sealed and matched mutually, and the other end of polymer welded joint 6 utilizes fusing soldering welder to weld with plastic tube to be connect.Fastening internal thread overcoat 3 can make irony nipple 1 and polymer welded joint 6 be closely connected.

Claims

1, a kind of steel plastic pipe union, include irony nipple (1), rubber pad (4), internal thread overcoat (3), it is characterized in that also including polymer welded joint (6), polymer welded joint (6) one ends are provided with the sealing prominent stupefied (5) that the interior latus rectum face (2) of socket rubber pad (4) and plug face (7) with internal thread overcoat (3) female end head part are sealed and matched mutually, and the other end of polymer welded joint (6) can weld with plastic tube to be connect.