CN1475694A

CN1475694A - Tapless pipe adapter joining technique

Info

Publication number: CN1475694A
Application number: CNA031437141A
Authority: CN
Inventors: 龚荣富
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-28
Filing date: 2003-07-28
Publication date: 2004-02-18

Abstract

A technology for jointing non-screw pipes features that its jointer is composed of casing, rubber washer, metallic washer, pressing ring, and pressing cover. Turning the pressing cover can joint two pipes together without screwing their ends.

Description

No wire pipe fitting joint connection technique

The present invention relates to a kind of technical problem that wire pipe fitting connects with joint of not having.Its technology is called no fiber tube spare joint connection technique.The parts that its system reaches belong to pipe and connect general appliance.

Long-term practical experience of life shows: fluid is carried, and is very important to the mankind, and must relate to connecting of pipe fitting and its connector.

Existing associated couplings technology can be described as a connection technique, and its main points are: wait to take over and connector, all in advance tapping then screw interlock connection and sealing mutually, because general screw thread sealing thread also need be aided with encapsulation process before the button.

The present invention be such as straight joint, many logical heads, articulation, valve etc. connector, with the connecting of no wire pipe fitting, when a kind of the connection is provided, without the connection technique of tapping, be called no wire pipe fitting joint connection technique.Can be referred to as there not being the silk connection technique.Its technical essential is: the butt joint coupling components adopt not to have silk and connects design, such as the design of straight joint, and designed joint main casing, interior dress rubber gasket, metal washer, trim ring and at tip side, the corresponding accessories such as gland that add, integral connector coupling components; During connection, pipe end waiting does not need tapping, puts, screws gland in place as long as pipe end waiting is directly inserted the joint main casing.

Existing technology has silk to connect, because the necessary tapping of pipe end waiting; Only be tapping, increase design thickness to be taken over, caused the serious waste of pipe material, strengthened construction costs.Relevant device is also wanted in tapping, expends man-hour, prolongs project progress, and is real uneconomical.

The present invention does not have wire pipe fitting joint connection technique, system and connecting of straight joint, many logical heads, articulation, valve etc. and so on and no wire pipe fitting as mentioned above." no wire pipe fitting joint connection technique " if approved, its connector will be put design model by the technology of the present invention, produces the use of going on the market, and does not then need pipe end tapping waiting, and its direct effect is:

The first, because not tapping, the tube wall design thickness requirement to pipe fitting can correspondingly reduce, and saves pipe material, reduces construction costs.

The second, deduct threading apparatus, cut down expenses.

The 3rd, not tapping also can be reduced work hours, and speeds up the work, and all relates to economic benefit and social benefit nothing but.

For realizing the present invention, with design and the operation principle of no wire pipe fitting joint connection technique, take straight joint and articulation as example, accompanying drawings is as follows:

One, do not connect design with there being silk, such as the design of straight joint, the gland that design is added by joint main casing, interior dress rubber gasket, metal washer, trim ring and outer end forms.

Two, joint main casing (accompanying drawing one .1) (abbreviation main casing) is a major part, and its outer surface is a straight garden cylinder; For screwing with gland, there is the outside thread of respective length the end.

The main casing internal surface in central segment, is that the garden diameter is Φ ₁The short garden cylinder coaxial with outer surface, its Φ ₁It is smaller to wait to take over the nominal outer diameter.From lacking garden cylinder end, axially going out suitably at a distance, the garden diameter of phi is arranged ₂(nominal overall diameter to be taken over is bigger) is with Φ ₁Form first slope, in order to wait to take over when being inserted into, it is blocked.

Along Φ ₂Going out form and the coaxial straight garden cylinder of outer surface, and the outer end has greater than Φ suitable distant place ₂Φ ₃Coplane is with Φ ₂Form the endless belt step, place rubber gasket (accompanying drawing one .2), metal washer (accompanying drawing one .5).Φ ₃The garden cylinder is very short, short outward Φ ₃, with internal orifice garden, main casing outer end diameter of phi ₄, form second slope, trim ring is had effect of contraction, as embracing circle.

Three, to wait to take over the nominal outer diameter smaller for the trim ring inner diameter, but because the fracture that has plane and axle to become 60 ° of plane angles to be cut on the plane can overslaugh not treated the adapter insertion.

Four, the gland that fastens with joint main casing end outside thread, it is Φ that the center is drilled with diameter ₂The hole, garden, during connection gland is outwarded winding, allow and wait take over to insert gland: by storing order among the figure, put trim ring, metal washer, rubber gasket and insert the joint main casing and put in place.

Slowly screw gland, trim ring, metal washer and rubber gasket are advanced put in place.At this moment because of end thrust, compress rubber gasket fluid in the pipe is formed sealing; Simultaneously, constraint is waited to take over and can not rocked under average service conditions.Because the moving combination on trim ring and main casing second inclined-plane, make trim ring when being subjected to gland and pushing away before axially, also be subjected to axially entad pressure of main casing inclined-plane, and it is increasing, screw when putting in place to gland, nature will wait to take over locking, can not rock and retreat when guaranteeing normal the use to come off.

Union design and straight joint are quite similar, and as (accompanying drawing two), only the minority position is slightly different.The afterbody garden tube portion of its articulation and similar shape nominal overall diameter to be taken over etc. are big, are fit to directly insert in the joint stretch, and transfer to required size.

Can obtain conclusion to this: according to no fiber tube spare joint connection technique, general pipe fitting with all can not have a silk connection connecting of joint.Only need this joint by no fiber tube spare joint connection technique design, standby the getting final product of the no fiber tube spare joint of manufacturing.

Below just the present invention and existing technology relatively, its advantage is:

The first, reduce to wait to take over the wall design thickness, save pipe material, save engineering cost.

The second, without threading apparatus, reduce expenses.

The 3rd, save man-hour, speed up the work.

Below in conjunction with drawings and Examples present technique is explained as follows:

Accompanying drawing one is a sectional drawing of straight joint.As seen earlier make the joint main casing with related process, rubber gasket, metal washer, trim ring and gland are placed, are screwed gland Cheng Wusi straight joint with rubber gasket, metal washer, trim ring by figure on request and sell standby.

During use, gland is outwarded winding, operation screws gland and gets final product on request.

Claims

The present invention does not have fiber tube spare joint connection technique, and being different from existing technology has a connection technique.It is characterized in that the butt joint coupling member adopts the nothing silk to connect design, as the design of straight joint.The designed joint main casing, to be provided with the garden diameter in it be Φ ₁(it is smaller to wait to manage the nominal outer diameter), with the coaxial short garden cylinder of outer surface.End Φ ₁With the suitably Φ of distant place that goes out ₂(it is bigger to wait to take over the nominal outer diameter) forms first slope, blocks in order to waiting to take over.At Φ ₂Going out has bigger Φ suitably at a distance ₃With Φ ₂Coplane forms the endless belt step, places rubber gasket and puts metal washer afterwards.

Φ ₃Its weak point of garden cylinder, outer end Φ ₃With within the joint main casing end mouthful of garden diameter of phi ₄Form second slope, place the trim ring that becomes combination with the slope therebetween.

When gland screws.Trim ring is subjected to end thrust to compress rubber gasket fluid in the pipe is formed sealing, and constraint is waited to take over.When also screwing in conjunction with gland because trim ring and second slope are moving simultaneously, be subjected to radial centripetal pressure, will wait to take over locking, can not rock and come off when guaranteeing normal the use.

Adopt not have the joint coupling components that silk connects design, during connection, pipe end waiting is not wanted tapping, as long as will wait to take over, directly insert the joint main casing on request and put in place, screws gland and gets final product.

Like this, according to no wire pipe fitting joint connection technique, the butt joint coupling components adopts the connection of nothing silk to manufacture and design to sell and uses, and is claim of the present invention.