CN2311682Y

CN2311682Y - Pipe connecting piece

Info

Publication number: CN2311682Y
Application number: CN 97243701
Authority: CN
Inventors: 陶应恒
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-27
Filing date: 1997-10-27
Publication date: 1999-03-24
Anticipated expiration: 2007-10-27

Abstract

The utility model relates to a pipe connecting piece which is a tool. The pipe connecting piece mainly comprises an outer wire joint, a tightening nut, a sealing ring, and a washer. The outer wire joint which can be sheathed on a pipe is screwed tightly with the tightening nut. The sealing ring and the washer are reinforced, and seal a clearance between the pipe and the tightening nut. The pipe connecting piece solves the problems that sleeve joint in original technology needs wire passing on the outer wall of the pipe, and a plurality of pipes need to be installed and disassembled to change or take off a pipe. The pipe connecting piece has the advantages of time saving, labor saving, and convenient installation and disassembly.

Description

Pipe connection

Pipe connection of the present utility model belongs to the pipe jointer tool, and its classification number is: F16L.

Existing pipeline connection is all silk rollings on the inwall of the outer wall of pipe and joint, by being twisted to connect mutually, the outer silk of joint internal thread and pipe forms, so not only need multiple silk rolling instrument, and when installing/dismounting, need turn pipe pipe is broken away from from joint, and need many pipes of dismounting just can change or take off a pipe, take a lot of work, time-consuming, operation inconvenience.

The purpose of this utility model is to propose a kind of silk rolling on pipe that need not, by tightening the pipe connection that nut and nipple socket-connect and form.

The utility model by nipple, tighten nut, sealed circular ring and packing ring and form, tighten nut and twist mutually with nipple and connect, sealed circular ring, packing ring place the gap effect of playing sealing pipe and nut in the nut that tightens.

Accompanying drawing 1 is that the nut, nipple, pipe of tightening of the present utility model interconnects phase diagram.

Accompanying drawing 2 is construction profiles of outer silk elbow of the present utility model.

Accompanying drawing 3 is construction profiles of the utility model threeway nipple.

Accompanying drawing 4 is construction profiles of the utility model four-way nipple.

Accompanying drawing 5 is the straight-through construction profiles of outer silk of the present utility model.

Accompanying drawing 6 is construction profiles of the utility model reducing nipple.

Accompanying drawing 7 is sectional views of B face shown in Figure 1 in the utility model.

Below in conjunction with accompanying drawing the utility model being done one describes in detail.

Tighten on the end inwall of nut 4 screw thread is arranged, on the interface end outer wall of nipple 6 screw thread 5 is arranged also, the outer wall thread 5 that tightens end inner thread of nut 4 and nipple 6 can be twisted mutually and is connected together, the inwall that tightens nut 4 has the diameter of screw thread one end bigger than the diameter of not threaded end, the not threaded end diameter of inwall that tightens nut 4 is a bit larger tham the outer diameter of pipe 1, pipe 1 can just be packed into tighten in the nut 4, the gap of the two is very little; The inner diameter of nipple 6 is bigger than the outer diameter of pipe 1, and pipe 1 packs into the inwall of nipple 6 after packing into from not screwed end that tightens nut 4 again; Packing ring 2 and sealed circular ring 3 can be inserted and be tightened on the not threaded end inwall of nut 4, a packing ring 2 and two rubber seal annulus 3 are successively put into tighten nut 4 near not threaded end inwalls, pipe 1 passed tighten nut 4, insert again in the nipple 6, to tighten nut 4 connects with nipple 6 is stubborn mutually, till the contact of the port of nipple 6 and compressing rubber seal annulus 3, nipple 6 with tighten nut 4 at the relative pressure that produces in the motion connect rubber seal annulus 3 of twisting, under this pressure, form a circle pressure tank between two rubber seal annulus 3, on the inwall that two rubber seal annulus 3 tightly is adsorbed on tighten nut 4 and the outer wall of pipe 1, sealed the slight gap that tightens 1 on nut 4 and pipe, liquid in the pipe 1 can't be flowed out, reinforced the power of connecting airtight that tightens nut 4 and pipe 1 simultaneously; The effect of packing ring 2 is the friction that reduce to tighten between nut 4 and the rubber seal annulus 3, be unlikely to make tighten nut 4 and nipple 6 twist mutually connect in rubber seal annulus 3 revolve thereupon and move.That nipple 6 can be made into is straight-through, elbow, threeway, four-way, and reducing all has screw thread 5 on the outer wall of the interface end of nipple 6.

Pipe connection of the present utility model has reduced the many operations of pipe in the silk rolling process, and installing/dismounting is easy, saves time, laborsaving, is suitable for applying.

Claims

1, a kind of pipe connection, it is characterized in that comprising and tighten nut (4), nipple (6), rubber seal annulus (3) and packing ring (2), screw thread (5) is arranged on the interface end outer wall of nipple (6), tighten between nut (4), nipple (6) and pipe (1) mutually socket rubber seal annulus (3) and packing ring (2) and place and tighten in the nut (4).

2, pipe connection as claimed in claim 1 is characterized in that nipple (6) has straight-through, elbow, threeway, four-way, reducing.

3, pipe connection as claimed in claim 1 is characterized in that having the rubber seal annulus (3) that is no less than two.