CN2599368Y

CN2599368Y - Pressure-resisting fast connection device for pipeline

Info

Publication number: CN2599368Y
Application number: CNU032387121U
Authority: CN
Inventors: 黄国华; 宁三运
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-21
Filing date: 2003-02-21
Publication date: 2004-01-14
Anticipated expiration: 2013-02-21

Abstract

The utility model discloses a pipe pressure resistant fast connecting device, which includes two connectors respectively fixed to an end of the two pipes to be connected; the end of the two opposite connectors are respectively provided with a convex end face matching with each other; a circular sealing groove is formed between the convex end faces of the two connectors closed to the connector inner wall; the sealing groove is provided with a gasket; the outer wall of the opening end of the two connectors bends outwards and forms a bulge edge; outside of the bulge edge is provided with two halves of a slip, of which the axial outer surface is provided with taper; the inner circumstance wall of the slip is provided with a groove, of which both lateral sides respectively match with the radial outer surface of the bulge edge of the opening end of the two connectors; the outer surface of the slip is provided with a lock sleeve. The utility model has advantages of small size, low manufacturing cost, no interference of adjacent pipes, convenient and fast installation, no loosening, reliable use, good sealing and pressure resistant performance, which is not only applicable in metal pipe connection, but also capable of connecting plastic pipes, with wide scope of application.

Description

The withstand voltage Quick Connect Kit of pipeline

Technical field

The withstand voltage Quick Connect Kit of the improvement of the pipe coupling of using when the utility model belongs to connecting tube, particularly pipeline.

Background technique

At present, the joint that is used to connect senior middle school's low pressure metallic conduit adopts flange and bolted mode more, the pipe coupling that connects with this traditional Placement easily produces loosening, therefore the metal pipe sealing that connects is often not ideal enough, owing to want construction bolt on the flange, so the diameter of flange is often bigger, when the pressure medium in the pipeline when higher, have place, larger-diameter flange present position and often produce bigger destructive torsional moment, make the pressure-resistant seal effect of two pipeline connections reduce, influence the normal use of pipeline.If will guarantee that destructive torsional moment can not influence the sealing effect of pipeline junction, flange will be done very thickly, and therefore comparatively heavy, volume is also big.In addition,, easily cause to produce between the adjacent channel and interfere, and the screw on the requirement flange plate has more accurately that the position concerns when connecting with flange, otherwise used connecting bolt is difficult to installation because flange diameter is a lot of greatly than the pipe diameter that will connect.

Also have some pipelines that constitute by materials such as PVC, CPVC when connecting, the general employing expanded the rubber cushion form of the putting sealing that straight chewing-gum glues form, expands the R mouth, often because of the variation of geology and the variation when installing produce seepage, do not reach sealing effect, the tubing that materials such as PE are done, the normal joint Placement that adopts electric smelting, electric heating form, the cost height is difficult for changing.

The model utility content

The purpose of this utility model is to provide a kind of pipeline withstand voltage Quick Connect Kit, not only volume is little, can not cause the interference between the adjacent channel, and simple installation is quick, be difficult for becoming flexible, have higher operational safety, the withstand voltage effect of sealing of pipe coupling place simultaneously also is improved, its installation cost is cheap, changes easily.

The purpose of this utility model is achieved in that the withstand voltage Quick Connect Kit of a kind of pipeline, comprise two joints that are fixed in two pipe ends that will connect respectively, the end of two joints respect to one another has the concavo-convex end face that cooperatively interacts respectively, near looping seal groove between the concavo-convex counterface of two joints of inner nosepiece wall, be equipped with sealing gasket in the seal groove, all outwards form flange on the opening end outer wall of two joints, the outside cooperation of flange is installed with the slips that its axial external surface of two halves has tapering, the inner peripheral wall of slips is provided with groove, match with the radially-outer surface of two joint opening end flanges respectively in the bi-side of groove, engage sleeves is equipped with lock tube on the outer surface of slips.

When the utility model uses, earlier two joints are fixed in the end of two pipelines that will connect respectively, assemble sealing gasket in the joint end, use tensioner that two joints are drawn over to one's side, at this moment sealing gasket is just sticked in the seal groove of two joint ends formation, installs the two halves slips then on two joint external flanges, lock tube is sleeved on the slips outer surface again, just finished installment work, simple installation is quick.The radial dimension that is installed in the slips of the utility model joint and lock tube is smaller, therefore be difficult for producing location conflicts between the adjacent channel, can be more close between the pipeline, save the space, the axial external surface of slips has tapering, can make to cooperate the lock tube that is installed in the slips outside to produce self-locking, be difficult for loosening.Because sealing gasket is stuck in the seal groove, when the sealing gasket of the pressure medium desire in the pipeline by the joint outward during seepage, the outside crush seal pad of pressure medium also makes it to expand more and is adjacent to the concavo-convex counterface of two joints, thus also indirect raising sealing effect.The diameter and the flange of the flange that forms on the utility model joint outer wall are compared much smaller, when even the pressure of pipeline internal medium is very high, torsional moment in this flange place formation is also little, therefore can not reduce the sealing effect of pipeline, protects the normal use of positive pipeline.The utility model material therefor is few, and processing is simple, and cost of production is lower.The utility model is not only applicable to connect the stress metal pipeline, and it can also be with plastic production so that connect the plastic pressure pipeline, and Applicable scope is extensive.

Description of drawings

Accompanying drawing is a half section structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail, the withstand voltage Quick Connect Kit of a kind of pipeline, as shown in the figure, comprise two joints 1 that are fixed in two pipeline 5 ends that will connect respectively, the end of two joints 1 respect to one another has the concavo-convex end face that cooperatively interacts respectively, near looping seal groove between the concavo-convex counterface of two joints of joint 1 inwall, be equipped with sealing gasket 4 in the seal groove.

As shown in the figure, the cross section of annular seal groove is a triangle, the recessed end face near its inwall that is one of them joint tilts recessed in joint end face middle part, the outstanding convex cone face that forms of the convex surface of the close inner nosepiece wall of another joint 1, such two joints 1 just form a cross section between the close concavo-convex end face of inner nosepiece wall when cooperation is installed be leg-of-mutton annular seal groove.When the pressure medium desire in the pipeline 5 during by the outside seepage of sealing gasket 4, the pressure of medium makes sealing gasket 4 expand, and the further sidewall of the seal groove of the concavo-convex counterface formation of jam-packed two joints, thereby can obtain very desirable sealing effect.Certainly the cross section of this annular seal groove can also be traditional rectangle, and the seal ring that respective shapes is housed in the seal groove also can be realized comparatively desirable sealing.

As shown in the figure, all outwards form flange on the opening end outer wall of two joints 1, the outside cooperation of flange is equipped with two halves slips 3, the axial external surface of slips 3 is conical surface, the inner peripheral wall of slips 3 is provided with the groove that its bi-side are the plane of inclination, and two inclined sides of groove match with the radially-outer surface that has tapering of two joints, 1 opening end flange respectively.The bi-side of groove can also be vertical surface, and the radially-outer surface of the two joint opening end flanges that match with groove two vertical surfaces also is vertical surface accordingly.Engage sleeves is equipped with lock tube 2 on the outer surface of slips 3.The inner surface configuration and the flange external surface shape of two halves slips 3 inner peripheral surface groove altogether are complementary.Be installed on the flange for two halves slips 3 can be cooperated better, the radially-outer surface of groove bi-side that are provided with on slips 3 inner peripheral walls and two joint opening end flanges with matching all is inclined to set, and its tapering is 1: 4-1: 12.The tapering of the axial external surface of two halves slips 3 is 1: 4-1: 12.Setting has the matching surface of certain taper can be so that the annexation between each parts be more tight reliable, and has certain self-locking effect, makes to cooperate firmly.

Because the internal surface of lock tube 2 matches with the outer surface that has tapering of slips 3, the one port footpath is big, and the other end bore is little, is provided with the retaining lock seaming 6 that matches with the end face of two half-watts 3 respectively in the end near its bigbore end of lock tube 2.After whole connection set installs, retaining lock seaming 6 and slips 3 end faces chucking are got final product.

For the connection of the hard tube that constitutes by materials such as PVC, CPVC, PE, can make the mouth of pipe end that will connect directly form concavo-convex end face and flange with the enlarging mould, corresponding slips and lock tube are installed are again got final product.

Claims

1. withstand voltage Quick Connect Kit of pipeline, comprise two joints (1) that are fixed in two pipelines (5) end that will connect respectively, it is characterized in that: the end of two joints respect to one another (1) has the concavo-convex end face that cooperatively interacts respectively, near looping seal groove between the concavo-convex counterface of two joints of joint (1) inwall, be equipped with sealing gasket (4) in the seal groove, all outwards form flange on the opening end outer wall of two joints (1), the outside cooperation of flange is installed with the slips (3) that its axial external surface of two halves has tapering, the inner peripheral wall of slips (3) is provided with groove, match with the radially-outer surface of two joint opening end flanges respectively in the bi-side of groove, engage sleeves is equipped with lock tube (2) on the outer surface of slips (3).

2. the withstand voltage Quick Connect Kit of pipeline according to claim 1 is characterized in that: the cross section of said annular seal groove is a triangle.

3. the withstand voltage Quick Connect Kit of pipeline according to claim 1 is characterized in that: the tapering of the axial external surface of said two halves slips (3) is 1: 4-1: 12.

4. the withstand voltage Quick Connect Kit of pipeline according to claim 1, it is characterized in that: the groove bi-side that are provided with on slips (3) inner peripheral wall and the radially-outer surface of two joint opening end flanges with matching all are inclined to set, and its tapering is 1: 4-1: 12.

5. the withstand voltage Quick Connect Kit of pipeline according to claim 1 is characterized in that: the end of described lock tube (2) is provided with the retaining lock seaming (6) that matches with the end face of two halves slips (3) respectively.