CN109268590A - A kind of pipe fitting anti-loosing device - Google Patents

A kind of pipe fitting anti-loosing device Download PDF

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Publication number
CN109268590A
CN109268590A CN201810972984.8A CN201810972984A CN109268590A CN 109268590 A CN109268590 A CN 109268590A CN 201810972984 A CN201810972984 A CN 201810972984A CN 109268590 A CN109268590 A CN 109268590A
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CN
China
Prior art keywords
pipe fitting
hole
ring
pin
pin rod
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.)
Granted
Application number
CN201810972984.8A
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Chinese (zh)
Other versions
CN109268590B (en
Inventor
张东林
郑健
任立新
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AECC Shenyang Engine Research Institute
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AECC Shenyang Engine Research Institute
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Filing date
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Application filed by AECC Shenyang Engine Research Institute filed Critical AECC Shenyang Engine Research Institute
Priority to CN201810972984.8A priority Critical patent/CN109268590B/en
Publication of CN109268590A publication Critical patent/CN109268590A/en
Application granted granted Critical
Publication of CN109268590B publication Critical patent/CN109268590B/en
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Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00Joints with sleeve or socket
    • F16L21/08Joints with sleeve or socket with additional locking means

Abstract

The application belongs to engine pipelines connection design field, in particular to a kind of pipe fitting anti-loosing device, it include: snap ring, including inner ring and outer ring, axial one end end face of the inner ring offers the groove of regular hexagon, and is adapted to the pipe fitting nut, the outer ring is sector structure, it is arranged on the outer wall of the inner ring, axially offers first through hole group identical apart from the interior ring center, the outer ring radially offers the second sets of vias perpendicular to the first through hole group;Strut, including nut set and pin rod, the nut set is adapted to the pipe fitting nut, and the pin rod is co-axially located on the outer wall of the nut set, the via clearance of the pin rod and the first through hole group cooperates, and the pin rod radially offers third through-hole far from one end that the nut covers;Pin, rod-like structure cooperate with the via clearance of second sets of vias, and are adapted to the third through-hole, and one end is equipped with pull ring.The present apparatus is simple and reliable, effectively locking.

Description

A kind of pipe fitting anti-loosing device
Technical field
The application belongs to engine pipelines connection design field, in particular to a kind of pipe fitting anti-loosing device.
Background technique
The connection of pipeline generallys use the form that pipe fitting is connect with cap nut.Pipe fitting is typically provided with cap nut Outer-hexagonal structure, for tightening for twisting tool.Usual both ends are equipped with insurance hole, and anti-loose mode is locked both ends using lock silk Tight mode, with the mode disadvantage that locking wire lock is tight: needing specific purpose tool when installation, cumbersome, low efficiency;Usual pipeline is many It is more, need more working hour that could complete installment work;The region of narrow space is difficult to mount and dismount operation, maintainability Difference;The technical level of installation personnel there are certain requirements, if installation is more loose, the loosening of pipe fitting can be caused, cause to be situated between in pipe Matter leakage;A large amount of tiny fragmentary lock silks can be generated when disassembly, be may cause and are leak into engine hole configurations, and are not easy to be sent out It is existing, it causes damages.
Thus, it is desirable to have a kind of technical solution overcomes or at least mitigates at least one drawbacks described above of the prior art.
Summary of the invention
There is provided a kind of pipe fitting anti-loosing devices for the purpose of the application, need when solving to install in the prior art special It is cumbersome with tool, low efficiency, the problem of maintainability difference.
The technical solution of the application is:
The application's is a kind of pipe fitting anti-loosing device, and the pipe fitting is connected by two pipe fitting nuts Together, the pipe fitting anti-loosing device includes:
Snap ring, including inner ring and outer ring, axial one end end face of the inner ring offer the groove of regular hexagon, and with institute Pipe fitting nut adaptation is stated, the outer ring is sector structure, is arranged on the outer wall of the inner ring, is axially offered described in distance The identical first through hole group of interior ring center, two adjacent through-holes in the first through hole group are tangent, and the outer ring is radially Offer the second sets of vias perpendicular to the first through hole group, the every two adjacent through-hole phase in second sets of vias It cuts;
Strut, including nut set and pin rod, the nut set are adapted to the pipe fitting nut, the pin rod coaxial arrangement On the outer wall of nut set, the via clearance of the pin rod and the first through hole group cooperates, and the pin rod is far from described One end of nut set radially offers third through-hole;
Pin, rod-like structure cooperate with the via clearance of second sets of vias, and are adapted to the third through-hole, one end Equipped with pull ring.
Optionally, the center of circle of two through-holes at the most both ends in the first through hole group and 4 center of circle of inner ring are formed Angle is greater than 60 °.
Optionally, the outer ring is welded in the inner ring.
Optionally, the pin rod is welded on the nut and puts on.
Optionally, the third through-hole offers internal screw thread, and the pin is threadedly coupled with the third through-hole.
Optionally, the pull ring is fixedly connected on the pin.
Optionally, the other end of the pin offers radial fourth hole, and is adapted to and is provided with collision bead device, described to touch Pearl device limits axial displacement of the pin in the third through-hole of the pin rod.
Optionally, the collision bead device includes two collision beads and the collision bead spring that is arranged among it.
Optionally, the pipe fitting anti-loosing device is made of stainless steel material.
Optionally, the third through-hole being arranged on the pin rod is axially disposed have it is multiple.
At least there are following advantageous effects in the application:
The pipe fitting anti-loosing device of the application by it is open-and-shut insertion, extract operation can be completed installation and removal and Fixation is reliable, effectively locking.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the application;
Fig. 2 is the Snap ring structure schematic diagram of the application;
Fig. 3 is the branching rod structure schematic diagram of the application;
Fig. 4 is the latch structure schematic diagram of the application;
Wherein:
1- outer ring, 2- nut set, 3- pin, 4- inner ring, 5- pin rod.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application implementation clearer, below in conjunction in the embodiment of the present application Attached drawing, technical solutions in the embodiments of the present application is further described in more detail.In the accompanying drawings, identical from beginning to end or class As label indicate same or similar element or element with the same or similar functions.Described embodiment is the application A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use In explanation the application, and it should not be understood as the limitation to the application.Based on the embodiment in the application, ordinary skill people Member's every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.Under Face is described in detail embodiments herein in conjunction with attached drawing.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown is merely for convenience of description the application and simplifies description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the application The limitation of range.
1 to Fig. 4 the application is described in further details with reference to the accompanying drawing.
Such as Fig. 1, the application's is a kind of pipe fitting anti-loosing device, and pipe fitting is by two pipe fitting nuts in succession It is connected together, pipe fitting anti-loosing device includes:
Snap ring (such as Fig. 2), including inner ring 4 and outer ring 1, axial one end end face of inner ring 4 offer the groove of regular hexagon, And be adapted to pipe fitting nut, outer ring 1 is sector structure, is arranged on the outer wall of inner ring 4, is axially offered apart from the circle of inner ring 4 The identical first through hole group of the heart, two adjacent through-holes in first through hole group are tangent, and outer ring 1 is radially offered perpendicular to Second sets of vias of one sets of vias, the every two adjacent through-hole in the second sets of vias are tangent;
Strut (such as Fig. 3), including nut set 2 and pin rod 5, nut set 2 are adapted to pipe fitting nut, and pin rod 5 is coaxially disposed On the outer wall of nut set 2, the via clearance of pin rod 5 and first through hole group cooperates, and the one end of pin rod 5 far from nut set 2 is radial Offer third through-hole;
Pin 3 (such as Fig. 4), rod-like structure cooperate with the via clearance of the second sets of vias, and are adapted to third through-hole, one end Equipped with pull ring.
The device of the application, snap ring are respectively fitted on the pipe fitting nut that two dock with strut, are inserted by pin rod 5 outer The through-hole of first through hole group on ring 1, and be fixed with pin 3, realize the anti-loose setting to pipe fitting.
In the present embodiment, the folder that the center of circle of two through-holes at the most both ends in first through hole group and 4 center of circle of inner ring are formed Angle is greater than 60 °, and because nut shape is mostly hexagon, the twisting platform maximum rotation angle of hexagon is 60 °, can be with original position It is overlapped, pin rod 5 can necessarily pass through in outer ring 1 when ensure that installation;
Outer ring 1 is welded in inner ring 4, and pin rod 5 is welded on nut set 2, ensure that the reliability of connection.
Third through-hole offers internal screw thread, and pin 3 is threadedly coupled with third through-hole, it is therefore prevented that pin 3 falls off, for the present apparatus For, it is the device of dual anti-dropout, furthermore it is also possible to be arranged are as follows: the other end of pin 3 offers radial fourth hole, And it is adapted to and is provided with collision bead device, axial displacement of the collision bead device banking pin 3 in the third through-hole of pin rod 5.Collision bead device packet The collision bead device of the collision bead spring for including two collision beads and being arranged among it, setting can limit pin 3, by squeezing collision bead Device, the collision bead of two sides squeeze intermediate collision bead spring, and pin 3 can be inserted into pin rod 5, and crash device is logical by the third of pin rod 5 The collision bead of two sides is popped up, is limited on pin rod 5 to pin 3, when needing to take out pin 3, passes through extruding by Kong Shi, collision bead spring reset The collision bead of two sides pulls straight out pin 3.
Meanwhile the third through-hole that is arranged on pin rod 5 is axially disposed has multiple, ensure that pin 3 can be inserted into outer ring 1 simultaneously On the second sets of vias through-hole and pin rod 5 on third through-hole;
Pull ring is fixedly connected on pin 3, is conducive to operator's manual operations, is made full use of limited operating space;
Pipe fitting anti-loosing device is made of stainless steel material, is avoided the liquid etc. contacted when because loading and unloading and is made to it At corrosion.
The pipe fitting anti-loosing device of the application by it is open-and-shut insertion, extract operation can be completed installation and removal and Fixation is reliable, effectively locking.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any Within the technical scope of the present application, any changes or substitutions that can be easily thought of by those familiar with the art, all answers Cover within the scope of protection of this application.Therefore, the protection scope of the application should be with the scope of protection of the claims It is quasi-.

Claims (10)

1. a kind of pipe fitting anti-loosing device, the pipe fitting is connected together by two pipe fitting nuts, special Sign is that the pipe fitting anti-loosing device includes:
Snap ring, including inner ring (4) and outer ring (1), axial one end end face of the inner ring (4) offer the groove of regular hexagon, And be adapted to the pipe fitting nut, the outer ring (1) is sector structure, is arranged on the outer wall of the inner ring (4), axially opens It is tangent equipped with two adjacent through-holes in the identical first through hole group in the inner ring (4) center of circle, the first through hole group, The outer ring (1) radially offers the second sets of vias perpendicular to the first through hole group, every in second sets of vias Two adjacent through-holes are tangent;
Strut, including nut set (2) and pin rod (5), the nut set (2) are adapted to the pipe fitting nut, the pin rod (5) It is co-axially located on the outer wall of the nut set (2), the via clearance of the pin rod (5) and the first through hole group cooperates, institute It states pin rod (5) and radially offers third through-hole far from one end of the nut set (2);
It sells (3), rod-like structure, cooperates with the via clearance of second sets of vias, and be adapted to the third through-hole, one end is set There is pull ring.
2. pipe fitting anti-loosing device according to claim 1, which is characterized in that the most both ends in the first through hole group Two through-holes the center of circle and the inner ring (4) center of circle formed angle be greater than 60 °.
3. pipe fitting anti-loosing device according to claim 1, which is characterized in that the outer ring (1) is welded in described On ring (4).
4. pipe fitting anti-loosing device according to claim 1, which is characterized in that the pin rod (5) is welded on the spiral shell In mother set (2).
5. pipe fitting anti-loosing device according to claim 1, which is characterized in that the third through-hole offers interior spiral shell Line, the pin (3) are threadedly coupled with the third through-hole.
6. pipe fitting anti-loosing device according to claim 1, which is characterized in that the pull ring is fixedly connected on the pin (3) on.
7. pipe fitting anti-loosing device according to claim 1, which is characterized in that the other end of the pin (3) offers Radial fourth hole, and be adapted to and be provided with collision bead device, the collision bead device limits the pin (3) in the pin rod (5) Axial displacement in third through-hole.
8. pipe fitting anti-loosing device according to claim 7, which is characterized in that the collision bead device includes two collision beads And the collision bead spring being arranged among it.
9. pipe fitting anti-loosing device according to claim 1, which is characterized in that the pipe fitting anti-loosing device uses Stainless steel material is made.
10. pipe fitting anti-loosing device according to claim 1, which is characterized in that the third being arranged on the pin rod (5) Through-hole is axially disposed have it is multiple.
CN201810972984.8A 2018-08-24 2018-08-24 Anti-loosening device for pipe joint Active CN109268590B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810972984.8A CN109268590B (en) 2018-08-24 2018-08-24 Anti-loosening device for pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810972984.8A CN109268590B (en) 2018-08-24 2018-08-24 Anti-loosening device for pipe joint

Publications (2)

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CN109268590A true CN109268590A (en) 2019-01-25
CN109268590B CN109268590B (en) 2020-07-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113503806A (en) * 2021-06-22 2021-10-15 同济大学 Bolt anti-loosening intelligent monitoring device based on tail-connected angular displacement sensor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5380052A (en) * 1993-12-27 1995-01-10 Quikcoup, Inc. Releasable handle-type fastener for pipe couplings
WO1997028396A1 (en) * 1996-01-29 1997-08-07 Sloane Norman S Splined safety lock with resilient retaining ring
US5704659A (en) * 1996-08-26 1998-01-06 Valterra Products, Inc. Valve adapter locking system
CN101120197A (en) * 2005-02-16 2008-02-06 尤尼德塔有限公司 Fluid transport tube connector fittings
CN103398244A (en) * 2013-08-05 2013-11-20 广东中泽重工有限公司 Anti-loose movable pipe connecting device
CN204986090U (en) * 2015-10-08 2016-01-20 中国航空工业集团公司沈阳发动机设计研究所 Pipeline connection joint

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5380052A (en) * 1993-12-27 1995-01-10 Quikcoup, Inc. Releasable handle-type fastener for pipe couplings
WO1997028396A1 (en) * 1996-01-29 1997-08-07 Sloane Norman S Splined safety lock with resilient retaining ring
US5704659A (en) * 1996-08-26 1998-01-06 Valterra Products, Inc. Valve adapter locking system
CN101120197A (en) * 2005-02-16 2008-02-06 尤尼德塔有限公司 Fluid transport tube connector fittings
CN103398244A (en) * 2013-08-05 2013-11-20 广东中泽重工有限公司 Anti-loose movable pipe connecting device
CN204986090U (en) * 2015-10-08 2016-01-20 中国航空工业集团公司沈阳发动机设计研究所 Pipeline connection joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113503806A (en) * 2021-06-22 2021-10-15 同济大学 Bolt anti-loosening intelligent monitoring device based on tail-connected angular displacement sensor

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