CN105937677A - Totally-closed maintenance-free threaded fitting - Google Patents
Totally-closed maintenance-free threaded fitting Download PDFInfo
- Publication number
- CN105937677A CN105937677A CN201610518110.6A CN201610518110A CN105937677A CN 105937677 A CN105937677 A CN 105937677A CN 201610518110 A CN201610518110 A CN 201610518110A CN 105937677 A CN105937677 A CN 105937677A
- Authority
- CN
- China
- Prior art keywords
- retaining ring
- joint
- totally
- connector
- maintenance
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 241000826860 Trapezium Species 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 208000031481 Pathologic Constriction Diseases 0.000 claims description 2
- 210000001215 vagina Anatomy 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Sleeves (AREA)
Abstract
The invention belongs to the field of pipeline devices and particularly relates to a totally-closed maintenance-free threaded fitting. The totally-closed maintenance-free threaded fitting comprises a connector and a pipe body. The end of the pipe body is inserted into the connector, a stop opening is formed in the end of the connector, a sealing ring is arranged in the stop opening, the pipe body is sleeved with a locking ring, the sealing ring is sealed in the stop opening through the locking ring, a retreat stopping structure for preventing the pipe body from being pulled out of the connector is arranged on the inner side of the locking ring, the retreat stopping structure is composed of at least two parallel annular protrusions, the locking ring is installed on the connector through a pressing cap, the pressing cap is in threaded connection with the connector, a set of matched conical faces are arranged on the outer side of the locking ring and the inner side of the pressing cap, the locking ring is provided with a notch and an incision, and the notch and the incision are symmetrically formed. Detachable design is adopted, frequent disassembly and assembly can be achieved after connection, the fitting cannot be damaged in the maintenance or redirection process, and therefore the maintenance cost is reduced.
Description
Technical field
The invention belongs to plumbing installation field, particularly relate to a kind of totally-enclosed maintenance-free threaded fitting.
Background technology
Pvc pipe is the tubing that a class is conventional, in prior art, generally uses the mode of hot melt to be attached tubing, this company
It is high that the mode of connecing has bonding strength, seals reliable advantage, but after connecting, non-removable shortcoming is the most prominent.Due to can not
Dismounting, the maintenance of pipeline and the difficulty of cleaning work increase, and maintenance cost raises.
Summary of the invention
The present invention provides a kind of totally-enclosed maintenance-free threaded fitting, with the problem solving to propose in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions: the invention provides a kind of totally-enclosed maintenance-free spiral shell
Stricture of vagina pipe fitting, including joint and body, the end of body is inserted in joint, and the end of joint is provided with seam, is provided with in seam
Sealing ring, the outside of body is cased with retaining ring, and sealing ring is pressed on stop portion by retaining ring, and the inner side of retaining ring is provided with and prevents
The backing stop structure that body is extracted out from joint, backing stop structure is made up of at least two annular projections being parallel to each other, described locking
Ring is arranged on joint by pressure cap, and pressure cap is threaded connection with joint, and the outside of retaining ring and the inner side of pressure cap are provided with one
The conical surface that group cooperates, described retaining ring is provided with a gap and an otch, and gap and otch are symmetrical arranged.
The cross section of described annular projection is right angled triangle, and a right-angle side of right angled triangle overlaps with the inwall of retaining ring,
Another right-angle side is positioned at joint side.The cross section of described sealing ring is right-angled trapezium, and the acute angle of right-angled trapezium is inserted in described
Seam in.Described retaining ring is made up of nylon material.
The invention have the benefit that the present invention uses design for disassembly, after connection can being dismounted for multiple times, when therefore keeping in repair or change its course
Pipe fitting will not be damaged, thus reduce maintenance cost；Use sealing ring as sealing member, seal simple in construction, seal
Dependable performance, accessory low cost；The setting of retaining ring, it is ensured that the fastness being connected between joint with body, the most effectively
Body is prevented to extract out from joint.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the partial enlarged drawing in Fig. 1 at A；
Fig. 3 is the structural representation of retaining ring.
In figure: 1-joint, 2-sealing ring, 3-retaining ring, 4-pressure cap, 5-body, 6-annular projection, 7-gap, 8-otch.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described further:
The present embodiment includes joint 1 and body 5, and the end of body 5 is inserted in joint 1, in the prior art, and either heat
Molten attachment structure, or by the attachment structure being connected and sealed by any sealing gasket, cutting the end face of body 5 during connection
Cutting the precast construction outside planarization or body 5 end and have particular/special requirement, the operation easier of connection is high, the versatility of pipe fitting also than
Poor.Compared with above two connected mode, the flatness of body 5 end face is wanted by the socket connection mode herein used without any
Ask, it is not required that in the prefabricated any attachment structure in body 5 end, not only reduce operation easier, improve the versatility of pipe fitting,
Also make that convenience is installed to be improved.
The end of joint 1 is provided with seam, is provided with sealing ring 2 in seam, and the outside of body 5 is cased with retaining ring 3, retaining ring
Sealing ring 2 is enclosed in seam by 3.Seam inwall and retaining ring 3 define an annular groove accommodating sealing ring 2, will seal
Circle 2 is arranged in annular groove, makes the sealing property of sealing ring 2 give full play to, and can realize two way seal.
It addition, the present invention uses seam inwall and retaining ring 3 surround annular groove rather than directly process ring on joint 1 inwall
Groove, if reason for this is that and directly processing annular groove on joint 1 inwall, is accomplished by during installation first installing sealing ring 2, then
Body 5 is inserted in joint 1, and now, in order to when preventing plug-in mounting, the end of body 5 scratches sealing ring 2, need body
It is the highest that chamfering, installation difficulty and installation requirement are removed and processed to the burr of the end of 5；Use the groove structure of the present invention
Time, sealing ring 2, then plug-in mounting body 5 can be first installed, it is to avoid while sealing ring 2 damages during installation, reduce installation difficulty
Degree and installation requirement.
The inner side of retaining ring 3 is provided with backing stop structure, can effectively prevent body 5 from extracting out from joint 1, and then ensure that connection
Fastness and reliability.Backing stop structure is made up of at least two annular projections being parallel to each other 6, and annular projection 6 can directly be adopted
Being processed with lathe, process the shortest, difficulty is low.The cross section of described annular projection 6 is right angled triangle, right angle trigonometry
One right-angle side of shape overlaps with the inwall of retaining ring 3, and another right-angle side is positioned at joint 1 side.Cross section is right angle trigonometry
The annular projection 6 of shape has one-way check effect, while one-way check acts on guarantee connectivity robustness and reliability, also makes
When obtaining plug-in mounting, the resistance between retaining ring 3 and body 5 is less, the most laborsaving.
Described retaining ring 3 is arranged on joint 1 by pressure cap 4, and pressure cap 4 is threaded connection with joint 1, retaining ring 3
Outside and the inner side of pressure cap 4 be provided with one group of conical surface cooperated.In pressure cap 4 compaction process, under the effect of the conical surface,
Retaining ring 3 is gathered to body 5, the pressure between retaining ring 3 and body 5 constantly increases, and body 5 is required when extracting out to be overcome
Frictional force increases the most therewith, thus improves the bonding strength of joint 1 and body 5.
It is provided with a gap 7 in described retaining ring 3 and an otch 8, gap 7 and otch 8 are symmetrical arranged.Retaining ring 3
Not being fully disconnected at gap 7, be fully disconnected at otch 8, the effect of gap 7 and otch 8 is to make retaining ring 3 inside
Gather required pressure less, so that the screwing force needed for installing pressure cap 4 is less, so that installing more laborsaving.Otch 8
Another effect is so that retaining ring 3 can be inserted in from the side of body 5, makes installation more convenient.
The cross section of described sealing ring 2 is right-angled trapezium, and the acute angle of right-angled trapezium is inserted in described seam.Pressure cap 4 was tightened
Cheng Zhong, retaining ring 3 is slided to joint 1 side under the promotion of pressure cap 4, then by one of the wedge-shaped segment of sealing ring 2
It is partially pressed in seam；In ensuing compaction process, the cross section of sealing ring 2 deforms upon so that sealing ring 2 is to body 5
The pressure at outer wall and seam edge constantly becomes big, thus increases the voltage endurance capability of sealing surface, improves sealing effectiveness；Sealing ring 2
Cross section is right-angled trapezium, both can guarantee that sealing ring 2 can enter in seam smoothly, it is achieved stable firm attachment, can guarantee that again
Stop portion can fully be made up, compress by the encapsulant having volume enough, thus further ensures the reliability of sealing.
Described retaining ring 3 is made up of nylon material.In order to ensure locking effect, retaining ring 3 needs have certain hardness,
Meanwhile, in order to ensure that retaining ring 3 can be installed from side, retaining ring 3 needs have certain toughness, and nylon material can be very
Good meets requirement.
The present invention uses design for disassembly, after connection can being dismounted for multiple times, pipe fitting will not be damaged when therefore keeping in repair or change its course,
Thus reduce maintenance cost；Using sealing ring 2 as sealing member, seal simple in construction, sealing property is reliable, accessory cost
Low；The setting of retaining ring 3, it is ensured that the fastness being connected between joint 1 with body 5, especially effectively prevent body 5
Extract out from joint 1.
Claims (4)
1. a totally-enclosed maintenance-free threaded fitting, including joint (1) and body (5), it is characterised in that: body (5)
End is inserted in joint (1), and the end of joint (1) is provided with seam, is provided with sealing ring (2), body (5) in seam
Outside be cased with retaining ring (3), sealing ring (2) is pressed on stop portion by retaining ring (3), and the inner side of retaining ring (3) is provided with
Preventing the backing stop structure that body (5) is extracted out from joint (1), backing stop structure is by least two annular projections being parallel to each other (6)
Composition, described retaining ring (3) is arranged on joint (1) by pressure cap (4), and pressure cap (4) and joint (1) pass through spiral shell
Stricture of vagina connects, and the outside of retaining ring (3) and the inner side of pressure cap (4) are provided with one group of conical surface cooperated, described retaining ring
(3) it is provided with a gap (7) on and an otch (8), gap (7) and otch (8) are symmetrical arranged.
A kind of totally-enclosed maintenance-free threaded fitting the most according to claim 1, it is characterised in that: described annular projection (6)
Cross section be right angled triangle, a right-angle side of right angled triangle overlaps with the inwall of retaining ring (3), and another right-angle side is positioned at
Joint (1) side.
A kind of totally-enclosed maintenance-free threaded fitting the most according to claim 1, it is characterised in that: described sealing ring (2)
Cross section be right-angled trapezium, the acute angle of right-angled trapezium is inserted in described seam.
A kind of totally-enclosed maintenance-free threaded fitting the most according to claim 1, it is characterised in that: described retaining ring (3)
It is made up of nylon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518110.6A CN105937677A (en) | 2016-07-04 | 2016-07-04 | Totally-closed maintenance-free threaded fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610518110.6A CN105937677A (en) | 2016-07-04 | 2016-07-04 | Totally-closed maintenance-free threaded fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105937677A true CN105937677A (en) | 2016-09-14 |
Family
ID=56873236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610518110.6A Pending CN105937677A (en) | 2016-07-04 | 2016-07-04 | Totally-closed maintenance-free threaded fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105937677A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827259A (en) * | 2018-06-26 | 2018-11-16 | 安徽六启教育软件科技有限公司 | Safe surveying instrument |
| CN108844530A (en) * | 2018-06-26 | 2018-11-20 | 安徽六启教育软件科技有限公司 | Multifunctional mapping instrument |
| CN109000628A (en) * | 2018-06-26 | 2018-12-14 | 安徽六启教育软件科技有限公司 | Convenient surveying instrument |
| CN109000629A (en) * | 2018-06-26 | 2018-12-14 | 安徽六启教育软件科技有限公司 | High stability surveying instrument |
| CN109029390A (en) * | 2018-06-26 | 2018-12-18 | 安徽六启教育软件科技有限公司 | Integral type surveying instrument |
| CN109059877A (en) * | 2018-06-26 | 2018-12-21 | 安徽六启教育软件科技有限公司 | High heat-insulated surveying instrument |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB431083A (en) * | 1934-03-20 | 1935-07-01 | Ford Cone Joints Ltd | Improvements relating to pipe couplings |
| US4309050A (en) * | 1979-07-06 | 1982-01-05 | Societe Anonyme Dite: Legris | Pipe fittings, and in particular for high pressure fluid pipes |
| CN2264832Y (en) * | 1996-10-18 | 1997-10-15 | 川路塑胶有限公司 | Multi-functional pipe joint |
| US6502865B1 (en) * | 2000-08-09 | 2003-01-07 | Dynamic Air | Pipe coupler and method of coupling |
| CN2851788Y (en) * | 2005-11-07 | 2006-12-27 | 卜莹 | Quickly locking type pipe joint |
| CN201787229U (en) * | 2010-08-20 | 2011-04-06 | 江阴市恒润法兰有限公司 | Large-scale ultrahigh-pressure connecting flange structure |
| CN102252140A (en) * | 2011-07-21 | 2011-11-23 | 浙江大学 | Seal joint of deep low-temperature nonmetal pipeline |
| CN202392318U (en) * | 2011-12-05 | 2012-08-22 | 张关莲 | Pipeline connector |
| CN104930274A (en) * | 2015-05-11 | 2015-09-23 | 唐学功 | Connecting structure of quick connector and connector thereof |
| CN205745746U (en) * | 2016-07-04 | 2016-11-30 | 张超 | Totally-enclosed maintenance-free threaded fitting |
-
2016
- 2016-07-04 CN CN201610518110.6A patent/CN105937677A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB431083A (en) * | 1934-03-20 | 1935-07-01 | Ford Cone Joints Ltd | Improvements relating to pipe couplings |
| US4309050A (en) * | 1979-07-06 | 1982-01-05 | Societe Anonyme Dite: Legris | Pipe fittings, and in particular for high pressure fluid pipes |
| CN2264832Y (en) * | 1996-10-18 | 1997-10-15 | 川路塑胶有限公司 | Multi-functional pipe joint |
| US6502865B1 (en) * | 2000-08-09 | 2003-01-07 | Dynamic Air | Pipe coupler and method of coupling |
| CN2851788Y (en) * | 2005-11-07 | 2006-12-27 | 卜莹 | Quickly locking type pipe joint |
| CN201787229U (en) * | 2010-08-20 | 2011-04-06 | 江阴市恒润法兰有限公司 | Large-scale ultrahigh-pressure connecting flange structure |
| CN102252140A (en) * | 2011-07-21 | 2011-11-23 | 浙江大学 | Seal joint of deep low-temperature nonmetal pipeline |
| CN202392318U (en) * | 2011-12-05 | 2012-08-22 | 张关莲 | Pipeline connector |
| CN104930274A (en) * | 2015-05-11 | 2015-09-23 | 唐学功 | Connecting structure of quick connector and connector thereof |
| CN205745746U (en) * | 2016-07-04 | 2016-11-30 | 张超 | Totally-enclosed maintenance-free threaded fitting |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827259A (en) * | 2018-06-26 | 2018-11-16 | 安徽六启教育软件科技有限公司 | Safe surveying instrument |
| CN108844530A (en) * | 2018-06-26 | 2018-11-20 | 安徽六启教育软件科技有限公司 | Multifunctional mapping instrument |
| CN109000628A (en) * | 2018-06-26 | 2018-12-14 | 安徽六启教育软件科技有限公司 | Convenient surveying instrument |
| CN109000629A (en) * | 2018-06-26 | 2018-12-14 | 安徽六启教育软件科技有限公司 | High stability surveying instrument |
| CN109029390A (en) * | 2018-06-26 | 2018-12-18 | 安徽六启教育软件科技有限公司 | Integral type surveying instrument |
| CN109059877A (en) * | 2018-06-26 | 2018-12-21 | 安徽六启教育软件科技有限公司 | High heat-insulated surveying instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160914 |
|
| RJ01 | Rejection of invention patent application after publication |