CN1954168A

CN1954168A - Pipe coupling system

Info

Publication number: CN1954168A
Application number: CNA2005800079046A
Authority: CN
Inventors: 赵重远
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-09
Filing date: 2005-02-04
Publication date: 2007-04-25
Also published as: KR100462099B1; KR20040030738A

Abstract

The present invention provides a pipe coupling system in which a piping work can be simply and easily performed by coupling a pipe and a pipe fitting to each other with a screw and a sealing effect can be enhanced by providing a soft sealing ring coming in close contact with the surfaces of the pipe and the pipe fitting. The pipe coupling system comprises: a pipe (2) provided with a flange (4) which is formed by bending an end of the pipe (2) in a direction perpendicular to a circumferential surface thereof; a swivel nut (8) fitted into the pipe (2) such that a rear end of the swivel nut (8) is laked to the flange of the pipe (2) to prevent separation; a soft sealing ring (10) provided to come in close contact with the surface of the flange (4) of the pipe (2); and a pipe fitting of which a part of a circumferential surface is provided with a male screw (34) such that the male screw (34) is coupled to the swivel nut (8) fitted into the pipe (2) and of which an end surface coming in contact with the soft sealing ring (10) is provided with a support protrusion (35) such that a part of an inner surface of the soft sealing ring (10) coming in close contact with the end surface is supported by the support protrusion (35).

Description

Plumbing connection system

Technical field

The present invention relates to a kind of plumbing connection system, more particularly, relate to a kind of like this plumbing connection system, in this system, pipework can be simply will be managed and pipe fitting interconnects and finishes by screw thread, and by making the soft seal ring closely contact the enhancing sealing effect with the surface of pipe and pipe fitting.

Background technique

Usually, pipework is meant the pipe layout of carrying out for water supply, draining, air-conditioning, heating, air feed etc. and is connected.The pipe fitting that is used to interconnect pipeline comprises pipe joint, spigot, bend pipe, valve and similar accessory.

In the past, mainly adopting welding will manage (particularly copper pipe) is connected on the pipe fitting as pipe joint, valve, spigot, bend pipe etc.But under the situation of welding, the many proficiency skills of welding requirements are difficult to keep in repair when defective occurring or damaging, and change whole pipe in some cases possibly.That is to say, when defective or damage in pipeline, occurring, change and abandon the part that does not have damage together.Moreover, because welding portion or a part of pipeline part need to cut off, be very difficult so carry out exploded (separation) operation.In addition, owing to should cut off pipeline with accurate length, and then welding again, so the operation that is difficult to carry out interchangeable parts and reconnects part.

Under the situation of welding, when building two-layer or higher building (for example apartment), after finishing, pipework should leak or air tightness test.Therefore, be difficult to find defective, and need cost plenty of time and cost to carry out the repairing of defective.

In the pipeline of routine, be provided with respectively owing to be used to prevent the safety check of fluid reflux of process and flow control valve, gate valve, the ball valve that is used for control flow rate, therefore increased the number of pipe fitting, thereby made pipework complicated.

Summary of the invention

Of the present invention being designed for addresses the above problem.One object of the present invention is to provide a kind of plumbing connection system, in this system, can be simply by will managing with screw thread and pipe fitting interconnects and finishes pipework, and by making the soft seal ring closely contact the enhancing sealing effect with the surface of pipe and pipe fitting.

In addition, another object of the present invention is to provide a kind of plumbing connection system, in this system, be used as pipe fitting by the safety check that singly touches that will have safety check and flow control valve function, but simplified construction improves space availability ratio, and reduces cost.

According to an aspect of the present invention, provide a kind of plumbing connection system, comprising: be provided with the pipe of flange, this flange is to form along the direction bending perpendicular to its circumferential surface by the end with pipe; Swivel nut, it is assembled on the pipe, so that the rear end of this swivel nut locks onto on the flange of pipe, to prevent separately; The soft seal ring is used for closely contacting with the surperficial of flange of pipe; And pipe fitting, the part circumferential surface of this accessory is provided with outside thread, this outside thread is connected with swivel nut on being assembled to pipe, and the end face of this accessory and soft seal loop contacts is provided with supporting convex, so that the inner surface portion of the soft seal ring that closely contacts with this end face is supported by this supporting convex.

Pipe fitting can comprise pipe joint, spigot, valve, filter, bend pipe, T junction, connection wye, "+" (intersection) T-joint etc.

The flange of pipe can by with the end of pipe outwards expansion once form in once folding mode, and can be by the end of pipe be outwards expanded, and then abducent tube end curved inwardly form in the mode of twice-folded.

Pipe fitting can comprise and singly touch safety check that this singly touches safety check and comprises: the T-valve body, and this valve body has the region of no pressure, so that fluid can bottom horizontal flow sheet, this valve body is formed with outside thread on the two ends of the horizontal component that fluid flows through; Disk, this disk are arranged on a side of valve body, and can rotate around the disk fixing pin in the valve body, with the flow of control fluid; The flow control axle, this flow control axle is arranged in the vertical component of valve body rotationally, so that by its rotation and the open and close disk, and the lower end of this flow control axle bends towards a side; Lid with eccentric axis, this lid is arranged in the vertical component of valve body prejudicially, and supports the flow Control Shaft rotationally.

Description of drawings

By the detailed description of reference accompanying drawing, will more clearly understand above-mentioned and other feature and advantage of the present invention to exemplary embodiment.

Fig. 1 is a perspective exploded view, and it shows the plumbing connection system according to an embodiment of the invention;

Fig. 2 is a viewgraph of cross-section, and it shows the assembling condition of plumbing connection system according to the embodiment of the present invention;

Fig. 3 is a schematic representation, and it shows the user mode of plumbing connection system according to the embodiment of the present invention;

Fig. 4 is a viewgraph of cross-section, and it shows the assembly system according to the plumbing connection system of another embodiment of the present invention;

Fig. 5 is a viewgraph of cross-section, and it shows and singly touches safety check according to the plumbing connection system of an embodiment of the invention;

Fig. 6 is a viewgraph of cross-section, and it shows the user mode of singly touching safety check of plumbing connection system according to the embodiment of the present invention; And

Fig. 7 is a viewgraph of cross-section, and it shows the assembling condition according to the plumbing connection system of another embodiment of the present invention.

Embodiment

Describe plumbing connection system with reference to the accompanying drawings in detail according to exemplary mode of execution of the present invention.

As Figure 1-3, the plumbing connection system according to an embodiment of the invention comprises: be provided with the pipe 2 of flange 4, this flange is to form along the direction bending perpendicular to its circumferential surface by the two ends with pipe; Swivel nut 8, it is assembled on the pipe 2, and the rear end of this swivel nut 8 locks onto on pipe 2 the flange 4, separates with flange preventing; Soft seal ring 10 is used for closely contacting with the surperficial of flange 4 of pipe 2; And pipe fitting, the part circumferential surface of this pipe fitting is provided with outside thread 34, so that this outside thread 34 be assembled to the swivel nut 8 of pipe on 2 and be connected, and the end face that this pipe fitting contacts with soft seal ring 10 is provided with supporting convex 35, thereby the inner surface portion of the soft seal ring 10 that closely contacts with this end face is supported by this supporting convex 35.

The flange 4 of pipe 2 is outwardly-bent formation the in end by managing 2.

For example, the flange 4 of pipe 2 can once form with a folding mode by the end of pipe is outwards expanded, as shown in Figure 4; Also can be by the end of pipe be outwards expanded, and then abducent tube end curved inwardly form in the mode of twice-folded, as shown in Figure 2.

As shown in Figure 3, according to the position and the piping design of installing, can be wide variety of shapes for the shape of the pipe 2 of use, as linear, L shaped, T shape.

When needing, spigot 6 can be connected by welding on the pipe 2.

Copper pipe, Stainless Steel Tube etc. can be as pipes 2.Under the situation of the copper pipe that the connection operation is normally undertaken by welding, owing to pipework can be carried out under unjointed situation, so the present invention can be effectively applied to copper pipe more.

As shown in Figure 2, form block 9 on the rear end of each swivel nut 8, this block 9 is locked on the flange 4 of pipe 2 preventing separately, and this block makes the flange 4 of pipe 2 closely contact with pipe fitting.

Soft seal ring 10 is made by elastic material, for example rubber, silicon, soft synthetic resin or the like.

Soft seal ring 10 can be the dihedral thin plate of tool, as long as can be deformed into tabular under the stressed situation in both sides and can closely contact with the flange 4 of pipe 2 and the side of pipe fitting, the sealing ring can be a different shape.

The supporting convex 35 of pipe fitting is to protrude from its side with the height littler than soft seal ring 10 thickness.Preferably, the height of this supporting convex 35 is less than the minimum thickness when soft seal ring 10 is compressed, because when soft seal ring 10 is at utmost compressed, can obtain enough sealing effects.

As shown in figs. 1 and 3, pipe fitting can comprise pipe joint 30, gate valve 44, singly touch safety check 80, bend pipe 50, T junction 42, gauge 40 and similar accessory.

The polygonal projection, for example hexagonal protrusions 32, quadrangle projection, pentagon are protruding, octagonal projection etc., preferably be formed in the pipe fitting, so that for example the instrument of spanner can be used for the swinging head accessory, the perhaps rotation (see figure 1) of limiter tube accessory when being installed to pipe fitting on the pipeline.

Flanged joint 54 can be used as pipe fitting, and an end of this flanged joint is provided with flange 55 so that flange is connected with the person in charge 1, and the other end is provided with outside thread, so as be installed in the swivel nut 8 of pipe on 2 and cooperate (see figure 3).In addition, the flexible tube of being made by deformable flexible material 52 can be used as pipe fitting, and the two ends of this spring tube are provided with outside thread 53 (see figure 3)s.

Though not shown in the accompanying drawings, pipe fitting can use for example "+" (intersection) T-joint, spigot, filter, stop valve, angle valve, gate valve, safety valve and similar accessory.

As illustrated in Figures 5 and 6, comprise as the safety check 80 that singly touches of pipe fitting: T-valve body 82, this valve body has the region of no pressure, so that fluid can bottom horizontal flow sheet, this valve body has the outside thread 34 that forms on the two ends of the horizontal component 81 that fluid flows through; Disk 84, it is arranged on a side of valve body 82, and can be around 85 rotations of the disk fixing pin in the valve body 82, with the flow of control fluid; Flow control axle 86, it is arranged in the vertical component 83 of valve body 82 rotationally, so that by its rotation and open and close disk 84, and the lower end of this Control Shaft bends towards a side; The lid 88 of eccentric axis, this lid are arranged in the vertical component 83 of valve body 82 prejudicially, and support flow Control Shaft 86 rotationally.

The inside of valve body 82 is provided with the region of no pressure, so that fluid can bottom horizontal flow sheet, the valve seat 87 that contacts with disk 84 protrudes from an end of horizontal component 81.

One end of disk 84 can be supported by the vertical component 83 of valve body 82 rotationally around disk fixing pin 85.

Upper end at flow control axle 86 forms handle 89.

By retainer nut 90 being fastened on the outside thread that is formed on the vertical component 83 and the lid 88 of fixed axis off-centre.

Have singly the touching in the safety check 80 of said structure, outside thread 34 is formed on the two ends of horizontal component 81 of valve body 82.Supporting convex 35 is formed on the end of outside thread 34.

By rotation flow Control Shaft 86, singly touch safety check 80 and allow its curved end that disk 84 is closely contacted with valve seat 87, flowing of fluid can be blocked (see figure 5) thus.By rotation flow Control Shaft 86, singly touch safety check 80 and allow its curved end separately, thereby disk 84 can freely separate from valve seat 87, and can center on disk fixing pin 85 rotation (see figure 6)s from disk 84.Therefore, the fluid by horizontal component 81 is successfully flowed as shown in Figure 6 from left to right.That is to say, singly touch safety check 80, come control flow rate with rotation amplitude according to flow control axle 86 as flow control valve (gate valve, ball valve etc.); This singly touches safety check also as safety check, and this safety check makes disk 84 closely contact with valve seat 87 by hydrodynamic pressure, to block flowing of fluid.

As shown in Figure 7, pipe fitting can comprise: spigot 60, and an end of this spigot is provided with outside thread 34, and the other end is provided with attachment portion 61; With dead ring 63, this dead ring is forced to insert and integrally be fixed to the attachment portion 61 of spigot 60, and this dead ring is made by insulating material, and the circumferential surface of this dead ring is provided with outside thread 64.

The supporting convex 35 that cooperates with soft seal ring 10 is formed on the end of outside thread 34 of spigot 60.In addition, on the end opposite that is formed on dead ring 63 with supporting convex 65 that soft seal ring 10 cooperates with spigot 60.

Can utilize swivel nut 8 will manage 2 is connected on spigot 60 and the dead ring 63.

Can be arranged on swivel nut 8 and manage between 2 the flange 4 as the Sealing of O shape ring 7, thereby strengthen sealability.

Dead ring 63 can be made by elastic material, synthetic resin (polyoxymethylene etc.) for example, and the elastic force by this dead ring makes this dead ring 63 closely contact with attachment portion 61 thus.

When using above-mentioned dead ring 63, can be blocked along the electric current of pipe 2.

Above-mentioned according to plumbing connection system of the present invention in because pipework can utilize screw thread to carry out under the situation of not welding, and without any need for welding personnel.Therefore, compare, may reduce construction cost, and further reduce the generation of accidental event with welding.

Owing to when defective occurring or damaging, be easy to dismantle swivel nut, exchange so accessory can carry out part, thereby being convenient to safeguard safeguards composition with reduction.

When building two-layer or higher building (as the apartment), can in floor or pipe-line cell, leak or air tightness test by the pipe fitting with closed end is installed on the end of pipe.Therefore, can find defective and place under repair at any time.Therefore, can improve build guality and reduce reconstructed cost.

Above-mentioned according to plumbing connection system of the present invention in, the soft seal ring closely is inserted between the end face of the flange of pipe and pipe fitting, thereby has strengthened sealing effect greatly.By on the end face of pipe fitting, being formed for locking the supporting convex of soft seal ring, can easily carrying out the assembling and the positioning action of soft seal ring, and prevent that the soft seal ring from separating from pipe fitting.

Form the flange of the pipe vertical with circumferential surface by the mode with twice-folded, the flange of this pipe can closely contact with swivel nut.Therefore, do not need to be provided with additional Sealing, for example O shape is encircled, thereby reduces the part number and increased intensity greatly.

In addition, in plumbing connection system according to the present invention, owing to singly touch safety check by adopting, a pipe fitting can be finished two kinds of functions, and promptly therefore flow control valve (gate valve, ball valve etc.) and safety check can simplify pipework, and reduce installing space.Thereby, may reduce construction cost and improve space availability ratio.

In addition, in plumbing connection system according to the present invention, owing to adopt dead ring, can be blocked along the leakage and the electric current of pipeline, so the present invention can be applied to require the field of electricity safety as pipe fitting.

Though described exemplary mode of execution of the present invention, the invention is not restricted to these exemplary mode of executions, but can under the situation of the scope that does not deviate from claims of the present invention, specification and accompanying drawing, carry out modification in every way.Therefore, such modification belongs to scope of the present invention.

Claims

1. plumbing connection system comprises:

Be provided with the pipe of flange, this flange is to form along the direction bending perpendicular to its circumferential surface by the end with pipe;

Swivel nut, it is assemblied on the described pipe, and the rear end of this swivel nut locks onto on the flange of described pipe, to prevent separately;

The soft seal ring is used for closely contacting with the surperficial of flange of described pipe; And

Pipe fitting, the part circumferential surface of this pipe fitting is provided with outside thread, so that this outside thread is connected with swivel nut on being assemblied in pipe, and the end face of this pipe fitting and soft seal loop contacts is provided with supporting convex, so that the inner surface portion of the soft seal ring that closely contacts with this end face is supported by this supporting convex.

2. plumbing connection system as claimed in claim 1, the flange of wherein said pipe are once to form by the end of pipe is outwards expanded.

3. plumbing connection system as claimed in claim 1, the flange of wherein said pipe be in the mode of twice-folded by the end of pipe is outwards expanded, and then the end of abducent pipe curved inwardly and form.

4. plumbing connection system as claimed in claim 1, wherein said swivel nut is provided with block in its back-end, this block is locked on the flange of pipe, separate with the flange of pipe preventing, and this block makes the flange of pipe closely contact with pipe fitting when the precession pipe fitting.

5. plumbing connection system as claimed in claim 1, wherein said soft seal annular becomes the dihedral thin plate of tool.

6. plumbing connection system as claimed in claim 5, the supporting convex of wherein said pipe fitting protrudes from the side of pipe fitting with the height less than the thickness of described soft seal ring.

7. plumbing connection system as claimed in claim 1, wherein said pipe fitting comprise and are selected from one or more in the following accessory: pipe joint, spigot, gate valve, singly touch safety check, bend pipe, T junction, connection wye, gauge, flexible tube, "+" shape cross-over joint, filter, stop valve, angle valve, gate valve and safety valve.

8. plumbing connection system as claimed in claim 7, the wherein said safety check that singly touches comprises:

The T-valve body, this valve body has the region of no pressure, so that fluid can bottom horizontal flow sheet, this valve body is formed with outside thread on the two ends of the horizontal component that fluid flows through;

Disk, this disk are arranged on a side of described valve body, and can rotate around the disk fixing pin in the valve body, with the flow of control fluid;

The flow control axle, this flow control axle is arranged in the vertical component of described valve body rotationally, so that by the rotation of flow control axle and the open and close disk, and the lower end of this flow control axle bends towards a side; And

Lid with eccentric axis, this lid is arranged in the vertical component of valve body prejudicially, and supports described flow control axle rotationally.

9. plumbing connection system as claimed in claim 8, wherein the side of the valve seat that contacts with described disk in the horizontal component of described valve body protruded.

10. plumbing connection system as claimed in claim 8 wherein by set screw nut being installed on the outside thread that is formed in the vertical component, is fixed to described lid with eccentric axis on the vertical component of described valve body.

11. plumbing connection system as claimed in claim 1, wherein said pipe fitting comprises:

Spigot, an end of this spigot is provided with outside thread, and the other end is provided with the attachment portion; And

Dead ring, this dead ring are inserted and integrally are fixed to the attachment portion of described spigot forcibly, and this dead ring is made by insulating material, and the circumferential surface of this dead ring is provided with outside thread.

12. plumbing connection system as claimed in claim 1 wherein is inserted with Sealing between the flange of described swivel nut and pipe, the sealing part can improve sealability.