CN2341005Y

CN2341005Y - Multifunctional flexible joint with internal or external screw short pipes

Info

Publication number: CN2341005Y
Application number: CN 97213235
Authority: CN
Inventors: 冯杰
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-04
Filing date: 1997-04-04
Publication date: 1999-09-29
Anticipated expiration: 2007-04-04

Abstract

The utility model relates to a multipurpose movable joint comprising an inner thread short joint and an outer short joint, which is an installation kit which can be directly disassembled and assembled and is frequently used for pipeline and heating radiator installation works. The utility model is composed of the inner thread short joint 1, a spiral press cap 2, a pad slice 3 and the outer thread short joint, the inner thread of the short joint 1 can be directly buckled and connected with a pipeline with outer thread, and the outer thread of the short joint 4 can be directly screwed and connected a valve, a bend head, a tee and various pipes with inner thread. When a radiator is installed, the outer thread of the short joint 4 can be buckled and connected with the inner thread of an air bag bashing, and the utility model can save a thread short pipe or a hexagonal inner joint, reduce screwed connection positions and has a beautiful and smooth appearance.

Description

Contain the union of using of two kinds of pipe nipples of inside and outside silk more

The utility model relates to a kind of pipeline and heating radiator with direct dismounting function the union that the Component one that connect usefulness contain inside and outside silk pipe nipple is installed, and abbreviates as and uses union more.

In general pipeline and heating system installing engineering, some important equipment such as valve, radiator are because the requirement of installation, maintenance and replacing, each valve and every group of radiator all should have can with the possibility of the direct disassemble or assemble of pipeline.Stipulate clearly also that in " Code for construction and acceptance of heating and sanitary works GBJ242-32 " that country issues radiator must be equipped with removable link with being connected of pipeline.The common union of using is at present produced according to NBS, and its two pipe nipples all are to have only internal thread (taper pipe thread), and certain narrow limitation and inconvenient part are arranged when installing and using.

The purpose of this utility model is to overcome the deficiency of prior art, and architecture advances is carried out in traditional union, makes its application area more extensive, easy to use, simplifies installation process, saves component.

The purpose of this utility model reaches by the following technical programs: how two pipe nipples with union have inside and outside taper pipe thread respectively, wherein internal thread pipe nipple 1 contain internal thread (taper pipe thread) can with externally threaded pipeline of having of identical nominal diameter or fitting to fitting screwed connection, and an outer silk pipe nipple 4 contains outside thread (taper pipe thread), can with the mutual screwed connections of fitting to fitting such as the valve with internal thread, elbow, threeway, pipe collar and gas bag bushing of identical nominal diameter.

The utility model and existing product relatively have following advantage: the many direct application area that enlarged traditional union with union of the utility model, it is applicable to that more pipeline is connected with the direct installation of screw thread valve, elbow, threeway, pipe collar and gas bag bushing, the centre does not need by one section screw thread short tube again or re-uses a hexagonal interior joint pipe fitting excessively to connect, equipment is installed compactly more, has saved other component, has reduced the screwed connection position.As seen, it has saved material, has reduced expense, simplifies the installation and maintenance operating process simultaneously, and No. one, volume-diminished, the profile smoothness.

Accompanying drawing 1 is how the utility model assembles schematic diagram with union;

Accompanying drawing the 2, the 3rd, the embodiment master of internal thread pipe nipple 1, side view in the accompanying drawing 1;

Accompanying drawing the 4, the 5th, the embodiment master of spiral pressure cap 2, side view in the accompanying drawing 1;

Accompanying drawing the 6, the 7th, embodiment master, the side view of accompanying drawing 1 China and foreign countries' silk pipe nipple 4.

Below in conjunction with accompanying drawing use of the present utility model is elaborated:

The utility model is made up of internal thread pipe nipple 1, spiral pressure cap 2, pad 3, outer silk pipe nipple 4.One end of internal thread pipe nipple 1 has internal thread (taper pipe thread), the other end has the internal thread of outside thread and spiral pressure cap 2 one ends can screwed connection, one end of outer silk pipe nipple 4 has outside thread (taper pipe thread), the other end has a boss, the boss inboard can add pad 3, the outside can be inserted among the through hole of the other end of spiral pressure cap 2, by spiral pressure cap 2 internal thread pipe nipple 1 and outer silk pipe nipple 4 are linked together, screw or open spiral pressure cap 2 and just internal thread pipe nipple 1 and outer silk pipe nipple 4 closely can be compressed by pad 3 and link together or directly take apart, this just possesses and can directly tear open, the function of dress.

The outside thread (taper pipe thread) of internal thread of internal thread pipe nipple 1 (taper pipe thread) and outer silk pipe nipple 4, make series by nominal diameter: D15, D20, D25, D32, D40, D50, D80, D100 be totally 8 kinds of specifications.

Pad 3 can use flax silk to be compiled into the loose joint pad, and also available General Purpose Rubber, heat resistant rubber or asbestos rubber are made, and concrete condition should rationally be selected manufactured materials for use according to the different medium in the pipeline.

The Manufacturing material of internal thread pipe nipple 1, spiral pressure cap 2 and outer silk pipe nipple 4 can be selected various steel, cast iron, malleable cast iron (malleable iron component), copper, stainless steel, plastics etc. for use, specifically select for use which kind of material to determine that general heating water supply and sewerage pipeline is mainly selected steel, cast iron and malleable cast iron (malleable iron component) for use according to the character of pipeline internal medium.Should note carrying out antirust processing after the production and processing.

Claims

What contain two kinds of pipe nipples of inside and outside silk manyly use union, and it is made up of internal thread pipe nipple 1, spiral pressure cap 2, pad 3 and an outer pipe nipple 4.It is characterized in that: an end of internal thread pipe nipple 1 has taper pipe thread (internal thread) to make series by nominal diameter: D15, D20, D25, D32, D40, D50, D80, D100, the other end has outside thread to detain mutually with the internal thread of pressure cap 2 one ends to cooperate, one end of outer silk pipe nipple 4 has taper pipe thread (outside thread), make serial D15 by nominal diameter, D20, D25, D32, D40, D50, D80, D100, the other end has boss, but boss inboard shimming 3, the outside can be inserted among the through hole of the spiral pressure cap the other end, by spiral pressure cap 2 internal thread pipe nipple 1 is compressed with an outer silk pipe nipple 4 and to link together, screw or open spiral pressure cap 2 and internal thread pipe nipple 1 and outer silk pipe nipple 4 can be compressed by pad 3 and be connected or directly take apart, have the function that can directly connect or directly take apart.The taper pipe thread of internal thread pipe nipple 1 (internal thread) can with the various pipelines or the fitting to fitting screwed connection of same diameter taper pipe thread (outside thread), the taper pipe thread (outside thread) of outer silk pipe nipple 4 can with various fitting to fitting screwed connections such as the valve of the taper pipe thread that contains same diameter (internal thread), elbow, pipe collar, threeway, gas bag bushing.