CN2223407Y

CN2223407Y - Socket type flexible-to-rigid interface connecting short pipe

Info

Publication number: CN2223407Y
Application number: CN 95243072
Authority: CN
Inventors: 古传洪
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-04-18
Filing date: 1995-04-18
Publication date: 1996-03-27
Anticipated expiration: 2005-04-18

Abstract

The utility model relates to a plug-in type flexible-to-rigid interface connecting short pipe for conveying various fluid media, in particular to a water supply pipeline. It is characterized by that the short tube with circumferential boss and its spigot are matched with the bore of bearing end of flexible tube and the bore of bearing end is matched with that of spigot of rigid tube. The matching place of the inserting end of the short pipe and the flexible pipe interface is provided with a rubber ring gap, and the matching place of the socket end of the short pipe and the rigid pipe interface is provided with a filler space. The utility model discloses the nozzle stub is through using in two ten thousand meters D150-D400 millimeter pipeline installation engineering of Mianzhu county water company, has successfully realized the interconversion of self-stress pipe and cast iron pipe and is connected, and it reaches the designing requirement to save labour and time.

Description

The flexible rigid interface that changes of insert type connects short tube

The utility model relates to various flowing mediums and carries the conversion link, and the flexible rigid interface that changes of the insert type that particularly a kind of feedwater piping is used connects short tube.It not only is suitable for the mutual conversion of nonmetal spigot and socket type flexible interface pipeline and spigot and socket type rigid interface cast iron tube uses, and the mutual conversion that also is suitable for spigot and socket type flexible interface cast iron tube and spigot and socket type rigid interface cast iron tube is used.

According to the knowledge of the applicant: defeated, distributing pipe line in the present water engineering, adopt spigot and socket type more and more general from stress (prestressing force) concrete reinforced pipe (hereinafter to be referred as self stressed pipe).Being extensive use of of this nonmetal pipeline has the trend that replaces cast iron tube greatly, and it is compared with cast iron tube, has many superiority.Required accessory when but this self stressed pipe also exists turning, reducing, Fen Shui, contact, connection maintenance, control valve and other valve, facility can not show a candle to the deficiencies such as accessory specification great variety of goods of cast iron tube.Because this self stressed pipe road accessory is non-standard accessory, so the producer that produces is few, can't satisfy user's needs, the user has to process voluntarily as required or consigned processing, or far purchase commodities, therefore also exist cost price height, bothersome effort, delay construction period, feedback information to wait unfavorable factor slowly.

The purpose of this utility model is exactly in order to overcome above-mentioned the deficiencies in the prior art part, design a kind of conversion and connect short tube, be used with existing various rigid interface sleeve pipes, can make from stress spigot and socket type flexible interface pipeline and in use all adopt standard (GB3420-82) cast-iron pipe accessory (rigid interface).

The purpose of this utility model is such realization: design the short tube of tool circumference boss in the pipe, the socket end bore of the spigot of this pipe and flexible pipe matches, the spigot bore of its socket end and rigid pipe matches.

The spigot of short tube and the flexible pipe connector place of matching leave the cushion rubber gap, and the socket end inner ring of short tube and rigid pipe interface cooperation place have filling space.

Adopt this conversion to connect short tube and existing various rigid interface sleeve kit use, can progressively eliminate the non-standard pipe fittings of most of nonmetal spigot and socket type flexible interface pipeline, make it to produce, use more unified standard.The utility model also is suitable for the mutual conversion of spigot and socket type flexible interface cast iron tube and spigot and socket type rigid interface cast iron tube to be used.Thereby reached the purpose of this utility model.

The utility model structure and the engineering construction that will illustrate below in conjunction with accompanying drawing facts have proved: it has realized being connected of flexible pipe and rigid pipe smoothly, and all be utilize the standard cast iron fittings, solved the problem of self stressed pipe turning, reducing, Fen Shui, contact, connection maintenance, control valve and other valve, facility well.

Fig. 1 is the utility model structure sectional view.

Fig. 2 is that the utility model is used the annexation sectional view.

With reference to Fig. 1, Fig. 2, the conversion of adopting grey cast iron to make connects short tube 1, be cast with circumference boss 2 in this short tube, the socket end bore of No. 4 flexible pipes 6 of its spigot (as self stressed pipe, engineering plastics pipe) matches, and its socket end 3 matches with the spigot bore of rigid pipe 5 (as cast iron tube, alloy pipe).The spigot 4 and the flexible pipe 6 interface places of matching of short tube 1 leave the gap of cushion rubber 7, adopt cushion rubber 7 sealed interfaces; Have filling space with the rigid pipe 5 interface places of matching in the socket end 3 of short tube 1, adopt cement 8 (asbestos cement or expanding cement) sealed interface.Like this, just, realized of the connection of nonmetal slotting formula flexible interface pipeline to the conversion of spigot and socket type rigid interface cast iron tube.At spigot and socket type rigid interface cast iron pipe end, can use any or several standard cast-iron pipe accessories to connect, satisfy requirement of engineering.Afterwards, need utilize existing various rigid interface sleeve pipe, again spigot and socket type rigid interface cast iron tube be changed to nonmetal spigot and socket type flexible interface pipeline.

The utility model is on probation in feedwater piping through Mianzhu county water utility, Miho Dockyard 150 surplus having installed 20,000---D400 millimeter pipeline, wherein 90% is self stressed pipe, by with the supporting use of associating of existing self stressed pipe and cast iron tube adapter sleeve, realized that successfully the mutual conversion of self stressed pipe and cast iron tube uses, so pipe fittings all adopts standard cast-iron pipe accessory, both made things convenient for engineering construction, save engineering cost again, and reached the engine request standard.

Claims

One kind be used to fail, the flexible rigid interface that changes of insert type that the distributing pipe line conversion connects connects short tube, it is characterized in that: tool circumference boss in the short tube, the socket end bore of the spigot of short tube and flexible pipe matches, the spigot bore of the socket end of short tube and rigid pipe matches.
2. the flexible rigid interface that changes of insert type according to claim 1 connects short tube, and it is characterized in that: the spigot of short tube and the flexible pipe connector place of matching leave the cushion rubber gap, have filling space with rigid pipe interface cooperation place in the socket end of short tube.