CN2589777Y

CN2589777Y - Novel pipe joint

Info

Publication number: CN2589777Y
Application number: CN 02205187
Authority: CN
Inventors: 宋明富
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-28
Filing date: 2002-02-28
Publication date: 2003-12-03
Anticipated expiration: 2012-02-28

Abstract

The utility model relates to a novel pipeline joint, which comprises a main body, fastening nuts, O-shaped sealing rings, etc. Both ends of the novel pipeline joint are engraved with fastening screw threads, hole diameters among the center and both ends inside the novel pipeline joint form a cone-shaped structure, and the O-shaped sealing rings and a sealing and isolating ring are sheathed among the main body of the novel pipeline joint and pipes to be connected; the fastening nuts are connected with fastening metal push rings which are connected with the O-shaped sealing rings between which the sealing and isolating ring is arranged. When the novel pipeline joint is used for connecting pipelines, the novel pipeline joint makes no use of on-site fastening and also make no use of welding, and the utility model can be used for connecting pipes with different materials. When the utility model is used for constructing, the utility model can accomplish connection through hands or simple tools. The novel pipeline joint can be used as a micro-displacement expansion joint. The designing structure of the novel pipeline joint can be used for tee, self-closing valves and water taps to be used as the serial products of novel connecting pieces, and the utility model can be used for connecting wires, cables and steel cables and can also be used for building agricultural greenhouses and building structures.

Description

New-type pipe joint

Technical field:

The utility model relates to a kind of pipe joint, belongs to International Classification of Patents F16L " pipe joint or pipe fitting " technical field.

Background technique:

The connecting mode of the various pipelines of present running water pipe, fuel tube, oil transport pipeline and chemical plant, power plant all adopts welding or spiral shell to buckle connection usually, and all there are many shortcomings in these two kinds of connecting modes, low such as effect, construction technical requirement is high, construction tool is complicated heavy, be difficult for guaranteeing construction quality, execution conditions are had certain limitation etc.

Summary of the invention:

At the problems referred to above, the purpose of this utility model is to provide a kind of applied widely, solid and reliable safety, and the construction efficient quick, cost is low, and collection connection, sealing, slip joint are a kind of New-type pipe joint of one.

The utility model is by the following technical solutions:

A kind of New-type pipe joint, comprise that main body, tightening nut and O RunddichtringO form, binding thread is carved with at the two ends of pipe coupling, aperture by middle mind-set two ends in the joint is a cone structure, pipe joint body and wait to take between be with O RunddichtringO and seal isolation ring, tightening nut connects fastening metal and pushes away circle, and fastening metal pushes away circle and connects the O RunddichtringO, and the seal isolation ring is housed between the O RunddichtringO.

This pipe coupling need not on-the-spot hitch when connecting pipe, also need not weld, and with extrusion principle pipe joint is linked with waiting to take over firmly.The tubing that can be used for unlike material connects.Can be free-hand or finish connection in when construction with simple tool.Joint can be made the micrometric displacement slip joint.The project organization of described pipe joint can be used for threeway, Jie Men and the water tap series product as novel coupling.The connection of electric wire and cable, wirerope can be used for, agricultural greenhouse and building framework can be used to construct.

Described pipe joint can be with various metallic material or plastic production, and is applied widely, solid and reliable safety, and the easy construction quickness and high efficiency, cost is low, and collection connection, sealing, slip joint are one.And can reuse, low to construction workman technical requirements, can carry out installation without instrument or with simple tool.Link with traditional welding construction or spiral shell and to connect construction and compare, improved efficiency of construction, reduced construction cost.

Description of drawings:

Fig. 1 is the structural principle schematic representation of the utility model pipe joint;

Fig. 2 is the structural representation of the utility model tee union;

Fig. 3 is the utility model elbow structure schematic representation;

Fig. 4 is the utility model list joint structure schematic representation;

Fig. 5 is the structural representation that big caliber of the present utility model connects embodiment 1;

Fig. 6 is the structural representation that big caliber of the present utility model connects embodiment 2.

Among the figure: 1, wait to join two pipes together 2, tightening nut, 3, metal pushes away circle, 4, pipe joint body, 5, O RunddichtringO, 6, isolating ring, 7, the joint internal lining pipe, 8, pipe joint, 9, flange trim ring, 10, the lange fitting head, 11, hold-down bolt, 13, big caliber pipe joint.

Embodiment:

Pipe coupling of the present utility model, comprise that main body (4), tightening nut (2) and O RunddichtringO (5) form, binding thread is carved with at the two ends of pipe coupling, aperture by middle mind-set two ends in the joint is a cone structure, pipe joint body (4) and wait to take between (1) and be with O RunddichtringO (5) and seal isolation ring (6), tightening nut (2) connects fastening metal and pushes away circle (3), fastening metal pushes away circle (3) and connects O RunddichtringO (5), and seal isolation ring (6) is housed between O RunddichtringO (5).

Plain end pipe to be connect (1) can be Stainless Steel Tube, iron pipe or plastic tube, and the tube wall thickness without limits.There is binding thread at two of pipe joint, and the aperture by middle mind-set two ends in the joint is a cone structure.To wait during connection to join two pipes together in (1) insertion tube adapter body (4), be with O RunddichtringO (5) and O type isolating ring (6) at pipe joint and between waiting to take over.During connection each parts is fitted together by mode shown in Figure 1.Screw tightening nut (2), nut (2) promotes fastening metal and pushes away circle (3), pushes away circle (3) and promotes the small end generation displacement of O RunddichtringO (5) to joint (4).Because end spaces is tapered in the joint, the space is more little more inward, pipe joint and wait to take between the gap also more little.Therefore, fastening nut is pressed O RunddichtringO (5) inwards more, and encapsulation is good more.For bearing in the bigger pipe pressure to external leakage, strengthen closed performance, also can adopt multi-stage sealed.Simultaneously, keep normal deformation when keeping multipole O type circle pressurized, strengthen sealing effect, seal ring isolating ring (6) is housed between O type circle (5).By textural association shown in Figure 1 just can be free-hand or simple tool realize the firm connection of 10mm-100mm diameter pipeline, and have sealing and slip joint function concurrently.

(7) among the figure are the joint internal lining pipe, and its effect is to be enhancing bearing strength to be taken over.The pipe joint that structure as shown in the figure assembles just can be realized the connection to thin walled tube and soft tubing, but and the tensile strength of reinforced pipe joint.

Fig. 4 is a single-termination header structure schematic representation.Single-ended joint is the transition connection that connects for the pipe that satisfies two calibers that vary in size, or uses the demand that connects of buckleing pipe fitting with original band spiral shell.When being used for and having externally threaded pipe fitting and joining, pipe joint among Fig. 4 (8) connects an end with common pipe fitting be outside thread.

Fig. 5 and Fig. 6 are the schematic representation of two kinds of bassoon drive connectors, are applicable to that connecting the pipeline of caliber more than 150mm uses.Each parts label and Fig. 1 are consistent among the figure, and action principle is also identical with Fig. 1, and just because profile is huge, and for ease of fastening, the tightening nut among Fig. 1 (2) changes flange trim ring (9) in Fig. 5, (10) are the pipe joints of flanged dish.(13) among Fig. 6 are the big caliber pipe joints of not flanged dish, the easier processing of this joint, and manufacture cost is lower.

Pipe coupling of the present utility model is applicable to that the pipeline of the unlike material in various fields such as tap water, combustion gas, machinery, oil, chemical industry, power plant, different purposes connects.This joining method that connects tube head also can be used for threeway, joint door, the first-class joint of the fire hose, is specially adapted to the connection of thin-wall stainless steel, thereby provides technical support for Stainless Steel Tube is used for tap water pipe line.

When being used for combustion gas and pipeline road, pipe joint of the present utility model also has outstanding especially advantage, at first because of its structural feature, do not need special tool(s) and welding when construction or repairing, not only the construction repairing is fast and simple, and there is not a naked light, can not cause the danger of inflammable gas and oil inflame blast, more can be because of the construction initiation fire.

Claims

1, a kind of New-type pipe joint, comprise that main body (4), tightening nut (2) and O RunddichtringO (5) form, it is characterized in that: binding thread is carved with at the two ends of pipe coupling, aperture by middle mind-set two ends in the joint is a cone structure, pipe joint body (4) and wait to take between (1) and be with O RunddichtringO (5) and seal isolation ring (6), tightening nut (2) connects fastening metal and pushes away circle (3), fastening metal pushes away circle (3) and connects O RunddichtringO (5), and seal isolation ring (6) is housed between O RunddichtringO (5).