CN2731230Y - Stainless steel pipe joint - Google Patents

Stainless steel pipe joint Download PDF

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Publication number
CN2731230Y
CN2731230Y CN 200420083992 CN200420083992U CN2731230Y CN 2731230 Y CN2731230 Y CN 2731230Y CN 200420083992 CN200420083992 CN 200420083992 CN 200420083992 U CN200420083992 U CN 200420083992U CN 2731230 Y CN2731230 Y CN 2731230Y
Authority
CN
China
Prior art keywords
pipe
joint
pipe joint
stainless steel
pipe fitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 200420083992
Other languages
Chinese (zh)
Inventor
岑焯波
Original Assignee
岑焯波
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 岑焯波 filed Critical 岑焯波
Priority to CN 200420083992 priority Critical patent/CN2731230Y/en
Application granted granted Critical
Publication of CN2731230Y publication Critical patent/CN2731230Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a stainless steel pipe fitting joint, comprising a pipe nut and a pipe joint which are sheathed and arranged on a pipe fitting. The inner surface of the end part of the pipe joint is provided with an arc shape or spherical surface shape concave surface, the front end of the concave surface is provided with a positioning annular concave groove, and a sealing ring is inserted and arranged in the annular concave groove. The inner surface of the base part of the pipe nut is provided with an arc shape or spherical surface shape concave surface, a self-regulated core metal short sleeve is provided and sheathed on the end part of the pipe fitting, and the outer ring surface of the metal short sleeve is provided with an arc shape or spherical surface shape convex surface. In the utility model, the self-regulated core metal short sleeve is provided among the pipe fitting, the pipe joint and the pipe nut, when the stainless steel pipe fitting joint is installed, even an interface is not leveled or can not be leveled, the metal short sleeve sheathed on the pipe fitting can automatically regulate in order to assure the compact combination of the pipe fitting, the pipe joint and the pipe nut, which assures that continuous loosening also can not occur to make leakage generated when a pipe system suffers from foreign impaction or the fluctuation of hydraulic pressure is larger.

Description

The stainless steel pipe joint
Technical field
The utility model relates to a kind of pipe fitting joint, particularly a kind of stainless steel pipe joint.
Background technique
Present thin-wall stainless steel is because can not be in its surperficial tapping, carrying out pipe fitting when connecting, and can only take the mode of pipe fitting joint that adjacent tubes is connected or adopts welding method to connect.It is with high costs that stainless steel welds, and the field of employment also is restricted easily.It is silica gel or the rubber seal that is provided with a tapered cross-section in pipe fitting joint that common stainless steel pipe connects, be provided with at sealing circle one end and limit the plain seal circle that it moves, flange on plain seal circle and the pipe fitting or pipe nut match, and guarantee the location.The Stainless Steel Tube system of this structure when mounted, if jointing does not have levelling, in case when running into water pressure fluctuations or being subjected to external shock, its joint is loosening easily, and then occurs leaking, and makes us not too satisfied.
The model utility content
But the purpose of this utility model is to provide a kind of simple and reasonable, low self-aligning of cost, mounting or dismounting convenience, good seal performance, watertight stainless steel pipe joint, to overcome deficiency of the prior art.
A kind of stainless steel pipe joint by this purpose design, comprise the pipe nut and the pipe joint that are set on the pipe fitting, its structure characteristic is that pipe joint end internal surface is provided with arc or sphere shape concave surface, and this concave surface front end is provided with a location annular groove, is embedded with seal ring in the annular groove; Pipe nut base portion internal surface is provided with arc or sphere shape concave surface, and pipe fitting end is arranged with one outward from the short cover of aligning metal, and the short cover of this metal outer ring surface is provided with arc or sphere shape convex surface.
The short cover of above-mentioned metal two ends join with the arc or the sphere shape concave surface of the arc of pipe joint or sphere shape concave surface, pipe nut respectively.Seal ring is an O type silica gel sealing ring.Seal ring and pipe fitting one end join.Pipe joint is union elbow or elbow or compromise joint.
The utility model is provided with between pipe fitting and pipe joint, pipe nut can be from the short cover of the metal of aligning, when installing, even jointing does not have levelling or can not levelling the time, being set on the pipe fitting the short cover of metal can regulate automatically, guarantee that pipe fitting combines closely with pipe joint, pipe nut, to guarantee that pipe-line system is subjected to external shock or water pressure fluctuations when big, can not occur connecting yet loosening, the situation of leaking takes place.Be provided with seal ring in the short cover of metal front end, further strengthen the sealing between pipe fitting and the pipe joint, prevent to leak.
But the low self-aligning of this simple and reasonable cost, mounting or dismounting are convenient, good seal performance and possess the self-aligning function.
Description of drawings
Fig. 1 is the utility model one example structure schematic representation.
Fig. 2 is the A-A sectional structure schematic representation of Fig. 1.
Fig. 3 is the short cover of metal structure for amplifying schematic representation.
Fig. 4 is the B-B sectional structure schematic representation of Fig. 3.
Fig. 5 is pipe nut structure for amplifying schematic representation.
Fig. 6 is the C-C sectional structure schematic representation of Fig. 5.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1-Fig. 6, this stainless steel pipe joint, be arranged with pipe nut 4 and union elbow 1 on pipe fitting 5 ends, pipe joint 1 end internal surface is provided with arc-shaped concave 12, these concave surface 12 front ends are provided with a location annular groove 11, be embedded with O type silica gel sealing ring 2 in the annular groove 11, sealing circle 2 joins with pipe fitting 5 one ends; Pipe nut 4 base portion internal surfaces are provided with arc-shaped concave 41, are arranged with one outside pipe fitting 5 ends from the short cover 3 of aligning metal, and the short cover of this metal 3 outer ring surfaces are provided with arc convex 31.The two ends of the short cover 3 of metal join with the arc-shaped concave 12 of pipe joint 1, the arc-shaped concave 41 of pipe nut 4 respectively.
Arc convex in the such scheme also can be made into sphere shape concave surface, and its effect is the same; Pipe joint also can be elbow or compromise joint except can be union elbow.

Claims (5)

1. stainless steel pipe joint, comprise the pipe nut (4) and the pipe joint (1) that are set on the pipe fitting (5), it is characterized in that described pipe joint (1) end internal surface is provided with arc or sphere shape concave surface (12), this concave surface front end is provided with a location annular groove (11), is embedded with seal ring (2) in the annular groove; Pipe nut (4) base portion internal surface is provided with arc or sphere shape concave surface (41), is arranged with one outside pipe fitting (5) end from the short cover of aligning metal (3), and the short cover of this metal outer ring surface is provided with arc or sphere shape convex surface (31).
2. stainless steel pipe joint according to claim 1 is characterized in that the short cover of described metal two ends join with the arc or the sphere shape concave surface of the arc of pipe joint or sphere shape concave surface, pipe nut respectively.
3. stainless steel pipe joint according to claim 1 is characterized in that described seal ring is an O type silica gel sealing ring.
4. stainless steel pipe joint according to claim 1 is characterized in that described seal ring and pipe fitting one end join.
5. stainless steel pipe joint according to claim 1 is characterized in that described pipe joint is union elbow or elbow or compromise joint.
CN 200420083992 2004-09-12 2004-09-12 Stainless steel pipe joint Expired - Fee Related CN2731230Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420083992 CN2731230Y (en) 2004-09-12 2004-09-12 Stainless steel pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420083992 CN2731230Y (en) 2004-09-12 2004-09-12 Stainless steel pipe joint

Publications (1)

Publication Number Publication Date
CN2731230Y true CN2731230Y (en) 2005-10-05

Family

ID=35051566

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420083992 Expired - Fee Related CN2731230Y (en) 2004-09-12 2004-09-12 Stainless steel pipe joint

Country Status (1)

Country Link
CN (1) CN2731230Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110296292A (en) * 2018-03-21 2019-10-01 福鸣环保科技(深圳)有限公司 Elbow ball face sealing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110296292A (en) * 2018-03-21 2019-10-01 福鸣环保科技(深圳)有限公司 Elbow ball face sealing device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee