CN2381867Y

CN2381867Y - Unthread pipe connector

Info

Publication number: CN2381867Y
Application number: CN 99217465
Authority: CN
Inventors: 李世卿
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-02
Filing date: 1999-08-02
Publication date: 2000-06-07
Anticipated expiration: 2009-08-02

Abstract

The utility model relates to an unthreaded pipe connector. A pipe joint 3 is sheathed on the outer end of each of butt-joint pipes 1; a sealing ring 4 is positioned in an annular ladder groove 31 in the pipe joint 3; a conical hole is arranged at the end of the pipe joint 3; a tightening ring 2 with a conical external surface and an axial groove 21 is sheathed on the outer end of the butt-joint pipes 1; the space between the pipe joint 3 and the butt-joint pipes 1 is sealed by the sealing ring 4, and the pipe joint 3 and the butt-joint pipes 1 are fastened by the elastic tightening ring 2. The utility model has the advantages of simple structure, convenient installation and disassembly and material saving, and the progress of the pipe construction is accelerated without threaded connection. The utility model is suitable for various pipes, especially pipes which are always removed.

Description

The screw-thread-free pipe link

The utility model relates to a kind of pipe connection, particularly a kind of screw-thread-free pipe link.

In steel pipeline, the threaded link of the general employing in the joint of tube and tube, the advantage of this way is to connect reliably, but the screw thread at pipe joint place needs the scene to manufacture, needing wastes time and energy with special tool processing, influences construction speed, particularly the pipeline of often removing for need is not suitable for as agricultural irrigation, construction, field work etc. very much.

The utility model purpose provides a kind of screw-thread-free pipe link, need not threaded link at the jointing place of pipeline, and the not threaded link of employing, it is simple in structure, installing/dismounting is quick and convenient, need not the site preparation screw thread during installation, construction speed is accelerated, and can be saved material.

The utility model is realized by following technological scheme.It comprises pipe joint 3, seal ring 4, pipe joint 3 be sleeved on docked respectively manage 1 outer end, seal ring 4 is pipe joint 3 internal diameters and respectively managing between 1 external diameter of being docked.Has tackiness agent at pipe joint 3 internal diameters with being docked respectively to manage between 1 the external diameter.Each end at pipe joint 3 has round taper hole, and respectively manages the retaining ring 2 that 1 outer end is set with the band conical external surface being docked.On retaining ring 2, have axial groove 21.Seal ring 4 is in the ring ladder groove 31 that is contained in the pipe joint 3.Described pipe joint 3 can be straight-through shape, bent angle shape, threeway shape or four-way shape.When using, a kind of mode for pipe joint 3 is sleeved on docked respectively manage 1 outer end, seal ring 4 is placed in the ring ladder groove 31 in the pipe joint 3, respectively managed 1 external diameter with seal ring 4 risings with what dock, with pipe joint 3 with docked respectively manage 1 between sealing, the end of pipe joint 3 docked with quilt respectively manage 1 between useful binders fixedly secure.Another kind of mode for docked with quilt in the outer end of pipe joint 3 respectively manage 1 between without adhesive, and conical hole is made in each end of pipe joint 3, the retaining ring 2 of respectively managing 1 outer end suit band conical external surface that is being docked, on retaining ring 2, have axial groove 21, make retaining ring 2 have elasticity, retaining ring 2 is pressed in conical bore, makes retaining ring 2 resiliently deformables, thereby joint 31 is connected firmly with respectively managing of being docked.

In sum, the utility model adopts the pipe joint of band shape step trough, uses each pipe that is docked with the seal ring rising, with the joint sealing, adopts tackiness agent or filler fixedly to secure between pipe joint and quilt each pipe that docks in the pipe joint end.Or fixed with flexible circular cone retaining ring in the end, because elasticity is fastening, be difficult for loosening.Make the link of pipe simple in structure, easy installation and removal is quick; The scene manufactures the workload of screw thread when saving installation, has accelerated the pipeline construction progress; Owing to remove the screw thread that disappeared, make the wall thickness dimension of pipeline can attenuate, also saved material, reduce material cost and screw thread processing charges, thereby reduced cost.The utility model screw-thread-free pipe link is suitable for various pipelines, particularly uses on the pipeline of often removing.

Do with embodiment below and specify.

Fig. 1 is a linkage structure schematic representation of the present utility model,

Fig. 2, Fig. 3, Fig. 4 are another kind of linkage structure schematic representation of the present utility model,

Fig. 5 is the A-A sectional view among Fig. 2,3,4.

Pipe joint 3 is three-way union as shown in Figure 1, pipe joint 3 be sleeved on docked respectively manage 1 outer end, seal ring 4 is positioned at the ring ladder groove 31 of pipe joint 3, respectively managed 1 with seal ring 4 risings by what dock, with pipe joint 3 with by docked respectively manage 1 between the sealing, each end hole of pipe joint 3 and respectively managing in the gap 5 between 1 of being docked, but filling with tackiness agent or filler with pipe joint 3 docked with quilt respectively manage 1 between fixed.Connect situation as Fig. 2 for the pipe joint of straight-through shape, pipe joint 3 be sleeved on docked respectively manage 1 outer end, seal ring 4 is positioned at the ring ladder groove 31 of pipe joint 3, by seal ring 4 with pipe joint 3 docked with quilt respectively manage 1 between seal.Different with Fig. 1 is to have conical bore in the end of pipe joint 3, is respectively managed the retaining ring 2 that the band outer cone is equipped with in 1 end what dock.As Fig. 5, have axial groove 21 on this retaining ring 2, make it have elasticity, be convenient to push and release from the end of pipe joint 3.As Fig. 3 is the connection situation of elbow unions, as the connection situation of Fig. 4 for three-way union, the structure of its joint and Fig. 2, shown in Figure 5 identical.This linkage structure also can be made union cross or other form.

Claims

1, screw-thread-free pipe link is characterized in that: it comprises pipe joint (3), seal ring (4), and pipe joint (3) is sleeved on by the outer end of each pipe (1) of butt joint, and seal ring (4) is positioned at pipe joint (3) internal diameter and is docked between each pipe (1) external diameter.

2, screw-thread-free pipe link according to claim 1 is characterized in that: have tackiness agent at pipe joint (3) internal diameter with dock between each external diameter of managing (1).

3, screw-thread-free pipe link according to claim 1 is characterized in that: each end at pipe joint (3) has tapered bore, and at the retaining ring (2) that is set with the band conical external surface by the outer end of each pipe (1) of butt joint.

4, screw-thread-free pipe link according to claim 3 is characterized in that: have axial groove (21) on described retaining ring (2).

5, according to claim 1 or 2 or 3 or 4 described screw-thread-free pipe links, it is characterized in that: described seal ring (4) is in the ring ladder groove (31) that is contained in the pipe joint (3).

6, according to claim 1 or 2 or 3 or 4 described screw-thread-free pipe links, it is characterized in that: described pipe joint (3) is straight-through shape, bent angle shape, threeway shape or four-way shape.