CN2181610Y

CN2181610Y - Fasy-to-mounting-and-dismounting pipe connection

Info

Publication number: CN2181610Y
Application number: CN 93211573
Authority: CN
Inventors: 焦发兆
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-10
Filing date: 1993-05-10
Publication date: 1994-11-02
Anticipated expiration: 2003-05-10

Abstract

The utility model discloses a pipe connection which is easy to install and disassemble. The pipe connection which is easy to install and disassemble is suitable for the pipe connections of a water pipe and a coal gas pipe. The pipe connection which is easy to install and disassemble is mainly composed of a connection body (5), at least compression nut (2) which is connected with the connection body (5) by a thread, and a conical sealed clamping sleeve (4) which is arranged inside the compression nut (2) and is close contacted with the connection body (5). The pipe connection which is easy to install and disassemble has the advantages of good sealing performance, and convenient installation and disassembly. The pipe connection which is easy to install and disassemble is the very ideal substitute of the existing pipe connections of a water pipe and a coal gas pipe.

Description

Fasy-to-mounting-and-dismounting pipe connection

The utility model relates to a kind of pipeline fittings, and a kind of pipe joint is particularly useful for the convenient to load and transport pipe joint of water, gas pipe.

Supply water, in the pipe arrangement construction of air feed engineering, the pipe joint pipeline fittings that is absolutely necessary.Although existing pipe joint different, be located at pipe joint according to screw thread and still distinguish in the pipe joint outward and have only two classes, and a class is internal thread joint (an abbreviation spigot), and another kind of is nipple (abbreviation socket).No matter be internal thread joint or nipple, the head of pipeline must be overlapped earlier before the pipe arrangement construction or attacked screw thread, and mostly number is that carry out at the scene, so working strength of workers is big.In addition, this Placement also exists some not enough: the one, and unreliable by the fitted seal of screw thread, therefore usually on outside thread, wrap up class sealing materials such as flax silk in the construction; The 2nd, destroyed during owing to the silk of the antirust coat quilt cover (or attacking) outside the pipeline, pipe coupling place is corrosion too early easily; The 3rd, a joint one assembling of Pipe Cutting in order that saves land is wanted in pipe arrangement construction, should not concentrate pipe arrangement, and assemble simultaneously many places; The 4th, pipe coupling is easily dead by rust, the inconvenience dismounting.

In view of the above-mentioned deficiency of existing in prior technology, the purpose of this utility model is water, the gas pipe pipe joint that discloses a kind of good airproof performance, convenient to load and transport.

The feature of the technical solution of realization above-mentioned purpose of the present utility model is mainly to be contained in the cone seal cutting ferrule that closely contacts with fittings body in the gland nut by a fittings body and at least one gland nut that is spirally connected with fittings body and one to be formed.

Cause gland nut loosening in order to prevent to have a rebound phenomenon behind the cone seal cutting ferrule torsional deformation, the utility model is provided with the anti-bounce-back tapered sleeve of a smooth material of usefulness again outside each cone seal cutting ferrule, the cone seal cutting ferrule then can not produce torsional deformation when turning gland nut like this.

The utility model compared with prior art has following advantage:

1, the joint of pipeline need not machining screw, and zinc-plated protective layer can be not destroyed, can prolong the working life of pipeline;

2, save the workload of machining screw during pipe arrangement, not only can reduce working strength of workers, and can speed up the work;

3, can realize concentrating pipe arrangement, multiple spot assembling construction;

4, joint can be not dead by rust, convenient disassembly.

Below in conjunction with drawings and Examples the utility model is explained in further detail.

Description of drawings:

Fig. 1 is the structural drawing of straight connector;

Fig. 2 is the structural drawing of elbow;

Fig. 3 is the structural drawing of tee union;

Example 1:

This example is a kind of straight connector.With reference to Fig. 1, fittings body (5) and gland nut (2) all select for use malleable cast iron by the known method processing and fabricating; Cone seal cutting ferrule (4) selects for use natural rubber to make; Anti-bounce-back tapered sleeve (3) selects for use little engineering plastics of friction factor or nylon 6 to make.

With reference to Fig. 1, will resist bounce-back tapered sleeve (3) to be enclosed within on the cone seal cutting ferrule (4) during assembling earlier, insert respectively again in the taper hole of fittings body (5) and gland nut (2), then its assembly is set to respectively on pipeline to be connected (1) and (6).During butt joint, with one spanner is kept a grip on fittings body (5), another spanner turns gland nut (2).The moment of torsion that is produced in the process of turning changes and resolves into axial force and radial force by the taper hole in fittings body (5) and the gland nut (2).Described axial force and radial force pass to pipeline (1) and (6) by two anti-bounce-back tapered sleeves (3) and cone seal cutting ferrule (4), and pipeline (1) and (6) and described pipe joint are joined together.

Example 2:

With reference to Fig. 2, present embodiment is a kind of elbow, and wherein fittings body (5) is one section bend pipe, and two is equipped with the outer silk that gland nut (2) is installed.Other enforcement means in this example are identical with example 1.

Example 3

With reference to Fig. 3, present embodiment is a kind of tee union, and wherein fittings body (5) is a three-way pipe, is equipped with the outer silk that gland nut (2) is installed on its three ports.Other enforcement means in this example are identical with example 1.

Claims

1, a kind of convenient to load and transport pipe joint is characterized in that mainly being contained in the gland nut (2) by a fittings body (5) and at least one gland nut (2) that is spirally connected with fittings body (5) and one and is formed with the cone seal cutting ferrule (4) that fittings body (5) closely contacts.

2, a kind of convenient to load and transport pipe joint according to claim 1 is characterized in that also comprising being placed in the outer anti-bounce-back tapered sleeve (3) of cone seal cutting ferrule (4).

3, a kind of convenient to load and transport pipe joint according to claim 1 and 2 is characterized in that of described fittings body (5) is provided with the outer silk that gland nut (2) is installed, and its endoporus is tapered.

4, a kind of convenient to load and transport pipe joint according to claim 1 and 2 is characterized in that fittings body (5) is the bend pipe that one section two is provided with the outer silk that gland nut (2) is installed.

5, a kind of convenient to load and transport pipe joint according to claim 1 and 2 is characterized in that fittings body (5) is a three-way pipe, is equipped with the outer silk that gland nut (2) is installed on its three ports.