CN2135095Y

CN2135095Y - Cement pipe joint with y-shaped rubber sealing ring

Info

Publication number: CN2135095Y
Application number: CN 92217290
Authority: CN
Inventors: 聂再安
Original assignee: NIE YOU AN
Current assignee: NIE YOU AN
Priority date: 1992-07-04
Filing date: 1992-07-04
Publication date: 1993-06-02
Anticipated expiration: 2002-07-04

Abstract

The utility model relates to a cement pipe joint with a Y-shaped rubber sealing ring, belonging to a novel water sealing manner used in the water feeding and drainage pipeline. The utility model is characterized in that a Y-shaped rubber sealing ring is made by utilizing the property of the rubber which is capable of highly resetting after stretched. The top circle part of the Y-shaped rubber sealing ring and the pipe socket of the cement pipe are cast and compacted together through serial assembling dies. A definite shrink range is left on the internal diameter of the Y-shaped rubber sealing ring and the outer diameter of the patchhole. When the patchhole is stuck into the pipe socket, a definite clamping force is generated by the cutting edge of the Y-shaped rubber sealing ring and the outer diameter of the patchhole. The clamping force can be increased in company with the rising of the water pressure in the pipeline. Thus, the utility model has a favorable water sealing function.

Description

Cement pipe joint with Y-shaped rubber sealing ring

The utility model relates to water supply and sewerage pipeline joint in the fixed buildings, is a kind of cement pipe joint with Y shape rubber seal.

In existing various water supply and sewerage pipeline joints, mostly be to adopt blue or green lead, materials such as asbestos cement, spunyarn or O shape rubber seal seal.(Fig. 1) be the asbestos cement pipe joint of cement, spunyarn sealing.Constitute by asbestos-cement pipe (1), sleeve pipe (2), spunyarn (3), cement filler (4).(Fig. 2) be the asbestos cement pipe joint of trapezoidal rubber seal sealing.Constitute by asbestos-cement pipe (1), reinforced concrete flange (2), trapezoidal rubber seal (3), sleeve pipe (4), bolt (5).(Fig. 3) be the reinforced concrete conduit pipe joint of O shape rubber seal sealing.Form by socket (1), O shape rubber seal (2), bellmouth (3).When socket and bellmouth respectively towards arrow A, when the B direction compresses, O shape rubber seal is compressed and just plays seal action.(Fig. 4) be the cast iron conduit pipe joint of spunyarn, cement seal.Constitute by socket (1), cement filler (2), spunyarn (3), bellmouth (4).(Fig. 5) the reinforced concrete sink drain joint that seals for cement mortar.Constitute by socket (1), cement mortar filler (2), bellmouth (3).Above-mentioned various pipe coupling, all be the filler between bellmouth and the socket is beaten reality or fasten after just reach sealing effect.Therefore to the requirement of strength of bellmouth than higher, and also cumbersome when installation.

The purpose of the utility model is to provide a kind of cement pipe joint with Y shape rubber seal.Its technical characteristics is: the outer garden part of Y shape rubber seal is watered to smash with the bellmouth internal diameter and is in the same place, and has installation and maintenance conveniently, and sealability is reliable, lower-price characteristic.Can also utilize simultaneously the hydraulic pressure in the pipeline to improve the water shutoff performance.

Description of drawings:

(Fig. 1) the asbestos cement pipe joint that seals for existing cement, spunyarn.

(Fig. 2) the asbestos cement pipe joint that seals for existing trapezoidal rubber seal.

(Fig. 3) the reinforced concrete conduit pipe joint that seals for existing O shape rubber seal.

(Fig. 4) for having the cast iron conduit pipe joint of spunyarn, cement seal now.

(Fig. 5) the reinforced concrete sink drain joint that seals for existing cement mortar.

(Fig. 6) be the utility model structure sectional view.

(Fig. 7) be the utility model embodiment (1) structure sectional view.

(Fig. 8) be the utility model embodiment (2) structure sectional view.

(Fig. 9) be the utility model embodiment (3) structure sectional view.

The technical solution of the utility model is: the characteristic that can highly reset after utilizing rubber to stretch, be made into the Y shape rubber seal (2) shown in (Fig. 6), simultaneously, design the series of combination mould and the bellmouth (3) of the outer garden part of Y shape rubber seal (2) and armored concrete downpipe is watered to smash be in the same place, thereby consisted of the armored concrete downpipe joint with the Y shape rubber seal shown in (Fig. 6). When socket (1) did not insert bellmouth (3), Y shape rubber seal (2) was nature, and its cutting edge internal diameter is less than socket (1) external diameter. When socket (1) inserted bellmouth (3), the cutting edge of Y shape rubber seal (2) contacted with the external diameter of socket (1), produces certain enclasping pressure, has just played the effect of water shutoff. The external diameter of the cutting edge internal diameter of Y shape rubber seal (2) and socket (1) differs certain size, and both differences are called the magnitude of interference, and the size of the magnitude of interference is relevant with the caliber of water pipe.

Owing to adopted technique scheme, the utility model is compared with existing reinforced concrete sink drain joint, has installation and maintenance conveniently, seals characteristics such as reliable, is the existing ideal update product of reinforced concrete sink drain joint.

The utility model embodiment is as follows:

Embodiment 1:

With reference to accompanying drawing (Fig. 7), present embodiment is the reinforced concrete conduit pipe joint of band Y shape rubber seal.Y shape rubber seal (2) and bellmouth (3) water and smash together among the figure, the external diameter of socket (1) is the tapering of 20:1, when socket (1) inserted bellmouth (3), the external diameter of socket (1) was tightly waled by the cutting edge of Y shape rubber seal (2), has so just played the effect of water shutoff.Because the cutting edge of Y shape rubber seal (2) and the external diameter of skewer mouth (1) have the surface of contact of broad, improved the reliability of sealing so more, when the hydraulic pressure in the aqueduct raises, the cutting edge of Y shape rubber seal (2) is under the effect of hydraulic pressure, external diameter to skewer mouth (1) just binds round tightly more, and the effect of water shutoff is just good more like this.The skewer mouth (1) of present embodiment and bellmouth (3) must be not each other axial pressure, thereby alleviated the outside tension of bellmouth (3).When must the swing certain angle of bellmouth (3) and skewer mouth (1), the depth minus that skewer mouth (1) skewer can be gone into bellmouth (3) is a little less.So just, can produce certain relative rotation, and not influence sealing effect.

Present embodiment has been compared following advantage with existing reinforced concrete conduit pipe joint with the sealing of O shape rubber seal:

Therefore 1, because Y shape rubber seal is fixed in the bellmouth, the requirement to the physical dimension of bellmouth inner working face does not just have the height of O shape rubber seal, and will make things convenient for manyly when installation yet.

2, the axial pressure that bellmouth and skewer mouth must be not each other, thus the outside tension of rubber seal reduced to bellmouth, reduced requirement of strength to bellmouth.Simultaneously, O shape rubber seal can only be applicable to the installation of cement straight tube, and Y shape rubber seal can also be applicable to the installation of various special-shaped water delivery pipe fittings such as fiber concrete threeway, elbow.

3,, when reducing the skewer of skewer mouth in bellmouth and go into the degree of depth, still can bind round more tightly on skewer mouth external diameter and do not influence the water shutoff performance because the cutting edge of Y shape rubber seal has bigger stretchability.At this moment, just can obtain bigger relative rotation between bellmouth and the skewer mouth.

Embodiment 2:

With reference to accompanying drawing (Fig. 8), present embodiment is the reinforced concrete sleeve of band Y shape rubber seal.Two asbestos-cement pipes (4) are distinguished skewer in reinforced concrete sleeve (5) among the figure, and are tightly bound round the position by the cutting edge of two Y shape rubber seal (2) respectively.The outer garden part of Y shape rubber seal (2) and the endoporus of reinforced concrete sleeve (5) water to smash is in the same place.The step of reinforced concrete sleeve (5) internal projection is the positioning device of asbestos-cement pipe (4) skewer depth degree.The sealing principle of present embodiment is identical with (Fig. 6).

Embodiment 3:

With reference to accompanying drawing (Fig. 9), present embodiment is the special-shaped sewer pipe joint of fiber concrete of band Y shape rubber seal.(6) are the fiber concrete threeways of band Y shape rubber seal among the figure, and (7) are the fiber concrete traps of band Y shape rubber seal, and (8) are the reinforced concrete sink drains of band Y shape rubber seal; (2) be Y shape rubber seal, (9) are the fiber concrete elbows of band Y shape rubber seal.Because the cement pipe joint of band Y shape rubber seal must bellmouth and skewer mouth axial pressure each other when installation, so can be suitable for the installation of various special-shaped pipelines, the sealing principle of present embodiment is identical with (Fig. 6's).

Claims

1, a kind of cement pipe joint with Y shape rubber seal, be a kind of novel water shutoff mode in the water supply and sewerage pipeline, feature of the present utility model is the reinforced concrete sink drain joint that can be made into band Y shape rubber seal, the outer garden part of Y shape rubber seal (2) and the endoporus of bellmouth (3) water to be smash together, the external diameter of skewer mouth (1) has certain tapering, leaves certain magnitude of interference between the external diameter of the internal diameter of Y shape rubber seal (2) and skewer mouth (1).

2,, it is characterized in that to be made into the reinforced concrete conduit pipe joint of band Y shape rubber seal according to the cement pipe joint of the band Y shape rubber seal of claim 1.The outer garden of Y shape rubber seal (2) is partly watered to smash with bellmouth (3) and is in the same place, and the external diameter of skewer mouth (1) is processed into the tapering of 20:1.

3, according to the cement pipe joint of the band Y shape rubber seal of claim 1, its feature also is to be made into the reinforced concrete sleeve of band Y shape rubber seal, the outer garden of two Y shape rubber seal (2) is partly watered to smash with reinforced concrete sleeve (5) respectively and is in the same place, two asbestos-cement pipes (4) skewer are respectively gone into the two ends of reinforced concrete sleeve (5), and are waled tightly by the cutting edge of two Y shape rubber seal (2).

4, according to the cement pipe joint of the band Y shape rubber seal of claim 1, its feature also is to be made into the fiber concrete steel tubing in different shapes joint of band Y shape rubber seal, and the outer garden of Y shape rubber seal (2) is partly watered with the bellmouth internal diameter of fiber concrete threeway (6), fiber concrete trap (7), fiber concrete elbow (9) respectively and smash together.