CN1325808C - Pipe screwthread connection device - Google Patents
Pipe screwthread connection device Download PDFInfo
- Publication number
- CN1325808C CN1325808C CNB2003101206836A CN200310120683A CN1325808C CN 1325808 C CN1325808 C CN 1325808C CN B2003101206836 A CNB2003101206836 A CN B2003101206836A CN 200310120683 A CN200310120683 A CN 200310120683A CN 1325808 C CN1325808 C CN 1325808C
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- CN
- China
- Prior art keywords
- ring
- retaining ring
- connection set
- pipe
- incision
- 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
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- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The screw connector for a pipeline has a nut (4) with a female thread (5). It has a recess (14) which accommodates a first internal ring (9) with a radial flange (13). A clamping ring (10) is pushed against the first internal ring. The nut screws onto a sleeve (1) with a male thread (3). The first internal ring compresses a sealing ring (6) with a radial external flange (7) and a small clamping flange (8) at one end.
Description
Invention field
The present invention relates to a kind of pipe thread connection set, be with a connecting tube joint, can insert a pipe in the pipe joint and have screw thread; Also be with a threaded piece, it has corresponding corresponding screw thread, and can be screwed into or be screwed on the connecting tube joint or in; And have Sealing and a fixed element, wherein Sealing is by elastic material, fixed block is made up of metal parts, Sealing and fixed element can be clamped between connecting tube joint and the threaded piece, and being used for the sealing of pipeline and fixing, fixed element acts on clamping ring or the incision ring that retaining ring and on the Sealing is used for fixing pipe by one and forms.
Background technique
For example by the known this pipe thread connection set of DE-GM1777607.Sealing intrinsic in this pipe thread connection set is by elastic material, and for example elastomer or synthetic rubber are made.Clamping ring or incision ring are made by metallic material.Reach sealing by Sealing.And clamping ring or incision ring particularly overcome withdrawal force by distortion with is connected the power that produces necessity with the clamping of pipe and carries out sealedly.For clamping ring or incision ring are not directly contacted with Sealing, a retaining ring is set additionally between these elements.
The shortcoming of this scheme is to adopt the fixed element of being made up of a plurality of parts.When prepackage these parts have gap and mutually can not concentric arrangement each other, make the insertion of pipe and by going wrong.The assembling after processing of the processing of many single parts and single part also can cause with high costs and take a lot of work.
Summary of the invention
From this prior art, the objective of the invention is, make such pipe thread connection set, it can be made economically, easily the assembling, can make the insertion of pipe simultaneously and pass easier.
For this reason, the invention provides a kind of pipe thread connection set, have a connecting tube joint, its inside can be inserted a pipe and be had a screw thread; One threaded piece, it has corresponding corresponding screw thread and can be screwed on the connecting tube joint or be screwed into the connecting tube joint; And a Sealing and a fixed element, wherein Sealing is made up of elastic material, fixed element is made up of the metal constituent element, sealing part and fixed element can be clamped between connecting tube joint and the threaded piece, and be used for sealing and fixing tube, fixed element acts on clamping ring or the incision ring that retaining ring and on the seal element is used for fixing pipe by one and forms, it is characterized by: retaining ring and clamping ring or incision ring are made of one, and the connection between two parts weakens by material or material is put up a bridge forms, and this connection can be thrown off by the operation threaded piece.
According to retaining ring of the present invention and clamping ring or incision ring formation one assembly unit.That is to say that in fact these parts constitute a part when prepackage and pipe insertion.Only just be divided into two elements, retaining ring and clamping ring or incision ring at threaded piece this part when adjusting the benchmark mounting point of screwing on.Not only simplified processing but also simplified the assembling of single part by this structure.Corresponding in addition pipe can insert or pass easily, because interconnective part (retaining ring and clamping ring or incision ring) arranged concentric accurately mutually.
If retaining ring and incision ring are made of one, and weaken or material is put up a bridge to form and connected, so preferentially select for use and economical especially by material.
Substitute material structure sealed or one can consider that also retaining ring is connected by force closure with the incision ring.
In order to ensure when the pipe thread connection set assembles, reaching required sealing and fixed function imagination, on retaining ring and/or incision ring, pulling restricting means or part are set, it acts on a pretightening force towards pipe and connecting tube joint on Sealing when the benchmark mounting point that pipe thread connects, in the pretightening force that produces on the cutting rib on the incision ring towards pipe.
The pulling restricting means can be to be made in backstop seamed edge on the part or the like, and they reach by this structure, avoids the excessive stresses of clamping ring or incision ring and Sealing at tension pipe thread connection set and after arriving the benchmark mounting point.
A preferred measure is in addition, retaining ring has an outside thread district, threaded piece is on pre-installed position can its internal thread be screwed in addition threaded area, wherein on threaded piece, conjointly establish a groove with internal thread, the outside thread district makes retaining ring can freely rotate in threaded piece on this position in rigging position is located at this groove.
Make threaded piece in the outside thread district that at first can be screwed in retaining ring on the pre-installed position by this structure, make part constitute a preassembled unit.When the threaded piece continuation was rotated with respect to retaining ring, the outside thread district of retaining ring arrived in the groove of threaded piece, reached the structure that retaining ring can rotate freely in threaded piece here after retaining ring and clamping ring or the disengagement of incision ring then.Thereby avoid when threaded piece continues to twist forward retaining ring to follow rotation, make Sealing can not be subjected to active force and damage by the part of following rotation.
Best imagination in addition, retaining ring has an internal cones in the end, and incision ring embeds in this internal cones with a protuberance when the threaded together part, thereby can be radially to internal strain, and with in the sealed form of the shape ground incision tube wall.
Best imagination also, threaded piece has an internal cones in the inboard, and incision ring embeds in this internal cones with a protuberance when the threaded together part, thereby can be radially to internal strain, and with in the sealed form incision of the shape tube wall.
A kind of preferential especially measure is that retaining ring has a metallic seal rib in its side towards the connecting tube joint.This seal land is chimeric in the end face seal of benchmark rigging position and connecting tube joint.
The sealing metal that reaches thus between retaining ring and the connecting tube joint connects.
For the imagination that simplifies the operation more, retaining ring removably is connected with seal element, particularly uses kayser or elasticity chucking mode.
Can also make Sealing and threaded piece, retaining ring and clamping ring or incision ring be merged into an assembly unit thus, the rigger can operate more easily thus.
Perhaps it is also conceivable that the fixed element of being made up of retaining ring and incision ring constitutes a metal seal between pipe and pipe thread connection set.
Reach thus, retaining ring can irrespectively make pipe produce metallic seal (effect) with respect to the pipe thread connection set with Sealing.
Represent embodiments of the invention in the accompanying drawings, be illustrated in more detail below.
Brief description
Fig. 1 represents a kind of by pipe thread connection set of the present invention with the decomposition view in the centre section;
Fig. 2 is in a pre-installed position (by Fig. 2 upper half part) that does not clamp with at the pipe thread connection set of answering rigging position (view below among Fig. 2) of clamping;
Fig. 3 shows a kind of flexible program similar with Fig. 2.
Embodiment
Expression one pipe thread connection set in the accompanying drawing, it has a connecting tube joint 1, one pipe 2 can insert in this pipe joint, and in its outlet port one outside thread 3 is arranged.Secondly the pipe thread connection set has a threaded piece 4, and it makes the form of lock nut, and has internal thread 5, and it can be screwed on the outside thread 3 of connecting tube joint 1.Be provided with Sealing and fixed block in addition.Sealing 6 is by elastic material, and for example elastomer or rubber are made.It is done circlewise, makes it surround the end of the pipe 2 that inserts, and wherein it has a projection and elasticity chucking edge 8 in the outside.Fixed element is made up of the metal constituent element, just acts on the retaining ring 9 of the pipe that is used for fixing insertion 2 on the Sealing 6 and a clamping ring or incision ring 10 by one and forms.Sealing 6 and fixed element 9,10 can be clamped between connecting tube joint 1 and the threaded piece 4, and are used for the sealing of pipeline 2 with respect to connecting tube joint 1 on the one hand, are used for pipeline is fixed on the reference position on the other hand.
Be combined into an assembly unit according to retaining ring 9 of the present invention and clamping ring or incision ring 10.This being combined in by operating can be thrown off when threaded piece 4 produces the pipe thread connection.Retaining ring 9 is made of one with incision ring 10 in the present embodiment for this reason, and wherein the connection of part constitutes by material weakening or material bridging 11.On retaining ring 9 and incision ring 10, be provided with the pulling limiting part, the benchmark mounting point of the pipe thread connection set of its view below pressing Fig. 2 produces a pretightening force towards pipe and connecting tube joint 1 on Sealing 6, the working angles rib place on incision ring 10 produces the pretightening force towards pipe 2.
This pulling restricting means for example can constitute by the protuberance 12 of clamping ring or incision ring 10, wherein constitutes corresponding pulling restricting means by side protuberance 12, that arrange perpendicular to the pipe thread connection set longitudinal axis.Therefore the benchmark rigging position at the view below Fig. 2 can not make the further tensioning of pipe thread connection set by operation threaded piece 4.
Retaining ring 9 has an outside thread district 13, threaded piece 4 is on pre-installed position can its internal thread 5 be screwed in addition threaded area, wherein in threaded piece 4, be right after internal thread 5 and form a groove 14, outside thread district 13 is positioned at this groove at rigging position, by the view finding of pressing Fig. 2, make retaining ring can be arranged in the threaded piece 4 after separately as particularly with clamping ring or incision ring 10 with rotating freely.
Retaining ring 9 has an internal taper hole 15 in end face one side, and incision ring 10 embeds in this internal taper hole with a boss when threaded together part 4, and cuts the tube wall of pipe 2 thus with the sealed form of shape radially to internal strain.Threaded piece 4 also has an internal taper hole 16 in the inboard, incision ring 10 embeds in this internal taper hole with a corresponding boss when threaded together part 4, thereby makes it radially to internal strain, and in the tube wall with the sealed form incision of shape pipe 2.Retaining ring 9 has a metallic seal rib 17 at it on a side of connecting tube joint 1 in addition, during its benchmark rigging position below pressing Fig. 2 and end face 18 sealings of connecting tube joint 1 chimeric.
Retaining ring 9 is connected by elasticity chucking connection set with Sealing 6 in the present embodiment, wherein in 8 embeddings of elasticity chucking seamed edge and the corresponding undercut groove 19 of retaining ring.
Structure pipe screw connection shown in replacing in the accompanying drawings also can be made like this, promptly only forms a metallic seal by retaining ring 9 and clamping ring or incision ring 10 fixed elements of forming between pipe 2 and pipe connection device.
By the view of pressing Fig. 2 as seen, operation during threaded piece 4 by making clamping ring or incision ring 10 move the method for separating and in Fig. 2, being moved to the left with retaining ring 9 by tube wall along pipe 2, make the pipe thread connection set with respect to pipe 2 sealings and clamping, wherein the acting in conjunction of the corresponding protuberance by the conical surface and clamping ring or incision ring is clamp-oned in the tube wall, shown in Fig. 2 bottom.Simultaneously retaining ring 9 moves to the left of Fig. 2, makes seal convexity 7 be securely fixed in the cavity that the aperture by the groove of retaining ring 9 and connecting tube joint 1 forms, and Sealing is pressed between the part on the wall with pipe 2 securely.
Fig. 3 represents a kind of flexible program, and wherein connecting tube joint 1 has internal thread.Threaded piece 4 has corresponding outside thread, and can be screwed in the internal threaded regions of connecting tube joint 1.This in other respects scheme is equivalent to the mode of execution by Fig. 1 and 2.
The present invention is not limited to this embodiment, but in the scope of open source information various variation can be arranged.
Disclosed all new single features or characteristics combination all are considered as content of the present invention in specification and/or accompanying drawing.
Claims (9)
1. the pipe thread connection set has a connecting tube joint (1), and its inside can be inserted a pipe (2) and be had a screw thread (3); One threaded piece (4), it has corresponding screw thread (5) and can be screwed in connecting tube joint (1) goes up or is screwed into connecting tube joint (1); And a Sealing and a fixed element, wherein Sealing (6) is made up of elastic material, fixed element is by metal constituent element (9,10) form, sealing part and fixed element can be clamped between connecting tube joint (1) and the threaded piece (4), and be used for sealing and fixing tube (2), fixed element acts on clamping ring or the incision ring (10) that retaining ring (9) and on the seal element (6) is used for fixing pipe (2) by one and forms, it is characterized by: retaining ring (9) and clamping ring or incision ring (10) are made of one, connection between this two part weakens by material or material is put up a bridge, and (11) form, and this connection can be thrown off by operation threaded piece (4).
2. by the described pipe thread connection set of claim 1, it is characterized by: on retaining ring (9) and/or incision ring (10), be provided with pulling restricting means or parts, they go up generation one pretightening force towards pipe (2) and connecting tube joint (1) at Sealing (6) when the benchmark rigging position of pipe thread connection set, the cutting rib place on incision ring (10) produces a pretightening force towards pipe (2).
3. by the described pipe thread connection set of claim 1, it is characterized by: retaining ring (9) has an outside thread district (13), threaded piece (4) is on pre-installed position can its internal thread (5) be screwed in addition threaded area, wherein on threaded piece (4), be right after internal thread (5) and be provided with a groove (14), outside thread district (13) are positioned at this groove when rigging position, make retaining ring (9) can freely rotate in threaded piece (4) in this position.
4. by the described pipe thread connection set of claim 1, it is characterized by: retaining ring (9) has an internal taper hole (15) in end face one side, incision ring (10) embeds in this internal taper hole with the one protuberance when threaded together part (4), and can be radially to internal strain and with shape in the sealed form incision tube wall.
5. by the described pipe thread connection set of claim 1, it is characterized by: threaded piece (4) inboard has an internal taper hole (16), incision ring (10) embeds in this internal taper hole with a protuberance when threaded together part (4), and can radially cut in the tube wall to sealed form to internal strain with shape.
6. by the described pipe thread connection set of claim 1, it is characterized by: retaining ring (9) has a metallic seal rib (17) in its side towards connecting tube joint (1), and the end face (18) of it and connecting tube joint (1) seals chimeric when the benchmark rigging position.
7. by the described pipe thread connection set of claim 1, it is characterized by: retaining ring (9) removably is connected with Sealing (6).
8. by each described pipe thread connection set of claim 1 to 7, it is characterized by: the fixed element of being made up of retaining ring (9) and incision ring (10) forms metallic seal between pipe (2) and pipe thread connection set.
9. by the described pipe thread connection set of claim 7, it is characterized by: retaining ring (9) tightens mode with adopting kayser or elasticity being connected of Sealing (6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10259188 | 2002-12-18 | ||
| DE10259188.1 | 2002-12-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1508449A CN1508449A (en) | 2004-06-30 |
| CN1325808C true CN1325808C (en) | 2007-07-11 |
Family
ID=34258130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101206836A Expired - Fee Related CN1325808C (en) | 2002-12-18 | 2003-12-18 | Pipe screwthread connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1325808C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102631071B (en) * | 2012-05-10 | 2014-03-26 | 林德星 | Toothbrush |
| CN105442272B (en) * | 2015-11-09 | 2017-09-26 | 海信（山东）冰箱有限公司 | A kind of level sensor, assembly method and washing machine |
| ES2864029T3 (en) * | 2019-02-13 | 2021-10-13 | Gmt Gummi Metall Technik Gmbh | Connecting sleeve, tension-compression bar and method for the manufacture of a tension-compression bar |
| CN111071800A (en) * | 2019-12-06 | 2020-04-28 | 刘月金 | Full-automatic inferior-quality sanitary towel linking pipe conveying and separating powder machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4136896A (en) * | 1977-11-18 | 1979-01-30 | Aeroquip Corporation | Flareless tube fitting for 37° adapter |
| FR2536148A1 (en) * | 1982-11-15 | 1984-05-18 | Melconian Guy | Leaktight fastening system for pipework connections |
| FR2568665A1 (en) * | 1984-08-03 | 1986-02-07 | Ravitt Raccords | Connection for tubes for high pressure |
| US4867489A (en) * | 1987-09-21 | 1989-09-19 | Parker Hannifin Corporation | Tube fitting |
| WO1997020163A1 (en) * | 1995-11-30 | 1997-06-05 | Fabrizio Minerdo | A connector for high-pressure metal pipes |
| CN1345405A (en) * | 1999-11-30 | 2002-04-17 | 帕克汉尼芬有限公司 | Pipe connector and method for production thereof |
-
2003
- 2003-12-18 CN CNB2003101206836A patent/CN1325808C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4136896A (en) * | 1977-11-18 | 1979-01-30 | Aeroquip Corporation | Flareless tube fitting for 37° adapter |
| FR2536148A1 (en) * | 1982-11-15 | 1984-05-18 | Melconian Guy | Leaktight fastening system for pipework connections |
| FR2568665A1 (en) * | 1984-08-03 | 1986-02-07 | Ravitt Raccords | Connection for tubes for high pressure |
| US4867489A (en) * | 1987-09-21 | 1989-09-19 | Parker Hannifin Corporation | Tube fitting |
| WO1997020163A1 (en) * | 1995-11-30 | 1997-06-05 | Fabrizio Minerdo | A connector for high-pressure metal pipes |
| CN1345405A (en) * | 1999-11-30 | 2002-04-17 | 帕克汉尼芬有限公司 | Pipe connector and method for production thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1508449A (en) | 2004-06-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20201218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |