CN2317380Y

CN2317380Y - Quick-acting pipe joint assembly

Info

Publication number: CN2317380Y
Application number: CN 97229286
Authority: CN
Inventors: 李学好
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-14
Filing date: 1997-10-14
Publication date: 1999-05-05
Anticipated expiration: 2007-10-14

Abstract

The utility model relates to a quick-acting pipe joint assembly, comprising a birdsmouth whose inner end is designed into a joint main body 2 of a ladder step 8 and a ladder step 9; an 'O'-shaped flexible sealing ring 3, a positioning member 5 for the sealing ring, a stainless steel non-return member 6 and a non-return release member 7 are arranged in order from the ladder step 9 at the inner end of the birdsmouth; a pipe fastener 4 is in a screw connection with the outer end of the birdsmouth of the joint main body 2. The quick-acting pipe joint assembly thoroughly overcomes the defects existing in previous traditional connection modes; the utility model has the advantages of simple structure, good tightness, and convenient installation and dismounting; the quick-acting pipe joint assembly can be repeatedly used by replacing inner parts, and accordingly, the service life can be prolonged.

Description

The quick coupling assembly

The utility model belongs to connection pipe fitting, is specifically related to a kind of quick coupling assembly that connects metal or nonmetal water pipe that is applicable to.

China's water-feeding pipes still extensively adopts Coating Steel Pipe at present.Because its corrosion-resistant, in use form scale and pollute water supply, Hong Kong Bureau of Water Resources has begun to forbid by legislation the use of Coating Steel Pipe in the building domestic water system in 1995.So it is imperative to select for use other corrosion-resistant tubing to replace Coating Steel Pipe.Wherein, the Coating Steel Pipe and the aluminium-plastic composite pipe of pool layer are more satisfactory substitute products in thin-walled copper tube, the band; the Coating Steel Pipe of pool layer has only a kind of Placement of wire connection in the band; work efficiency is low; be subject to inferior construction technology and influence construction quality; and the tubing price is higher, uses to be subjected to certain restriction; Aluminium-plastic composite pipe adopts brass crimping accessory, and it is easier construct, work efficiency height, but accessory processed complex, cost is higher, the general user is beyond affordability, and accessory to cause the pipeline area of passage to have only when connection original 1/3rd, increased loss of head; The thin-walled copper tube adopts welding and two kinds of Placements of cutting ferrule, and wherein welding manner is reliable, economical, and institute generally adopts for new construction, but needs special tool and special technical training, for doing special processing in encapsulate copper pipe weld bond place; The cutting ferrule Placement fast, convenient, but because the design problem of accessory itself, under variation of temperature or situation about being shaken, is very likely leaked.

The purpose of this utility model be to provide a kind of simple in structure, use quick coupling assembly very easily.

Quick coupling assembly of the present utility model, it is characterized in that comprising that a birdsmouth the inner is set as the adapter body of two ladder steps, ladder step in this birdsmouth the inner rises places " O " type flexible seal ring, seal ring locating piece, stainless steel non return part and non-return releasing part successively, and a pipe fitting fastening piece is spirally connected in the birdsmouth outer end of adapter body.

Adapter body and pipe fitting fastening piece can adopt brass, aluminum alloy to make, and also can adopt duroplasts to make.

Two rank body steps of quick coupling assembly of the present utility model, be used to limit the insertion depth of water pipe and the location that guarantees seal ring, effect by means of rank body step and seal ring locating piece has guaranteed the location of seal ring effectively, thereby gives full play to the seal action of seal ring; Quick coupling assembly birdsmouth the inner is provided with the stainless steel non return part, can prevent that water pipe from use getting loose, and guarantees the Security of system; The pipe fitting fastening piece that is spirally connected in the birdsmouth outer end of adapter body, and in birdsmouth the inner of adapter body one non-return is set and removes part, so that inner member is changed in dismounting.Therefore, quick coupling assembly of the present utility model has thoroughly overcome the drawback of traditional Placement in the past, and it is very convenient to install, dismantle, and good seal performance, structure are also very simple, very easily promote the use of.Only need when mounted pipe is inserted in the quick coupling assembly of the present utility model, tighten the pipe fitting fastening piece and get final product.Unclamp the pipe fitting fastening piece, promptly replaceable inner member, thereby assembly is reusable, has prolonged working life.

Below in conjunction with accompanying drawing quick coupling assembly of the present utility model is described further:

Fig. 1 is the structural representation of the utility model quick coupling assembly.

As shown in Figure 1, quick coupling assembly of the present utility model, comprise that a birdsmouth the inner is set as the adapter body 2 of ladder step 8 and ladder step 9, place " O " type flexible seal ring 3, seal ring locating piece 5, stainless steel non return part 6 and non-return successively at 9 on the ladder step of this birdsmouth the inner and remove part 7, a pipe fitting fastening piece 4 is spirally connected in the birdsmouth outer end of adapter body 2.When water pipe 1 plug-in package, water pipe 1 outer wall closely contacts with " O " type flexible seal ring 3 with stainless steel non return part 6, and under the effect of stainless steel non return part 6, water pipe can not get loose.In working order down, the left of fluid pressure effect " O " type flexible seal ring 3, " O " type flexible seal ring 3 is pushed to seal ring locating piece 5, under the acting in conjunction of hydraulic pressure and seal ring locating piece 5, " O " type flexible seal ring 3 deforms, be close to the inwall of adapter body 2 and the outer wall of water pipe 1, produce seal action.When maintenance, unclamp pipe fitting fastening piece 4, non-return is removed part 7 tops to stainless steel non return

part

6,6 of stainless steel non return parts break away from water pipe, can extract water pipe.

Claims

A kind of quick coupling assembly, it is characterized in that comprising that a birdsmouth the inner is set as the adapter body (2) of ladder step (8) and ladder step (9), ladder step (9) in this birdsmouth the inner rises places " O " type flexible seal ring (3), seal ring locating piece (5), stainless steel non return part (6) and non-return releasing part (7) successively, and a pipe fitting fastening piece (4) is spirally connected in the birdsmouth outer end of adapter body 2.