CN109268590B - Anti-loosening device for pipe joint - Google Patents
Anti-loosening device for pipe joint Download PDFInfo
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- CN109268590B CN109268590B CN201810972984.8A CN201810972984A CN109268590B CN 109268590 B CN109268590 B CN 109268590B CN 201810972984 A CN201810972984 A CN 201810972984A CN 109268590 B CN109268590 B CN 109268590B
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- hole
- pin
- hole group
- ring
- pipe joint
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- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The application belongs to the technical field of engine pipe connection design, in particular to locking release of coupling, include: the clamping ring comprises an inner ring and an outer ring, a regular hexagonal groove is formed in the end face of one axial end of the inner ring and is matched with the pipe joint nut, the outer ring is of a fan-shaped structure and is arranged on the outer wall of the inner ring, a first through hole group which is as far as the circle center of the inner ring is axially formed in the outer ring, and a second through hole group which is perpendicular to the first through hole group is radially formed in the outer ring; the support rod comprises a nut sleeve and a pin rod, the nut sleeve is matched with the pipe joint nut, the pin rod is coaxially arranged on the outer wall of the nut sleeve, the pin rod is in clearance fit with the through hole of the first through hole group, and a third through hole is radially formed in one end, far away from the nut sleeve, of the pin rod; the pin and the rod-shaped structure are in clearance fit with the through holes of the second through hole group and are matched with the third through holes, and one end of the pin is provided with a pull ring. The device is simple and reliable, and is effective in looseness prevention.
Description
Technical Field
The application belongs to the technical field of engine pipeline connection design, and particularly relates to a pipe joint loosening prevention device.
Background
The connection of the pipes is usually in the form of a coupling of a pipe nipple with a casing nut. The pipe joint and the cap nut are usually provided with an outer hexagonal structure for tightening the wrenching tool. Both ends all are equipped with the insurance hole usually, and locking mode that the locking wire was locked with both ends is adopted to the locking mode of taking off, with the mode shortcoming of locking wire locking: special tools are needed during installation, the operation is complicated, and the efficiency is low; generally, the pipelines are numerous, and the installation work can be completed only by more working hours; the installation and the disassembly operation are difficult in a narrow area, and the maintainability is poor; the technical level of installation personnel has certain requirements, and loose pipe joints can be caused if the installation is loose, so that medium in the pipes leaks; when the engine is disassembled, a large amount of fine scattered lock threads are generated, possibly leak into the hole structure of the engine and are not easy to be found, and loss is caused.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The utility model aims at providing a locking release of coupling to need specialized tool, complex operation, inefficiency, the poor problem of maintainability during the installation among the solution prior art.
The technical scheme of the application is as follows:
the application is a locking release of coupling, the coupling is in the same place through two coupling nut butt joints, locking release of coupling includes:
the clamping ring comprises an inner ring and an outer ring, a regular hexagonal groove is formed in the end face of one axial end of the inner ring and is matched with the pipe joint nut, the outer ring is of a fan-shaped structure and is arranged on the outer wall of the inner ring, a first through hole group with the same distance from the circle center of the inner ring is axially formed in the outer ring, two adjacent through holes in the first through hole group are tangent, a second through hole group perpendicular to the first through hole group is radially and upwards formed in the outer ring, and every two adjacent through holes in the second through hole group are tangent;
the support rod comprises a nut sleeve and a pin rod, the nut sleeve is matched with the pipe joint nut, the pin rod is coaxially arranged on the outer wall of the nut sleeve, the pin rod is in clearance fit with the through hole of the first through hole group, and a third through hole is radially formed in one end, far away from the nut sleeve, of the pin rod;
the pin and the rod-shaped structure are in clearance fit with the through holes of the second through hole group and are matched with the third through holes, and one end of the pin is provided with a pull ring.
Optionally, the centers of the two through holes at the two ends of the first through hole group form an included angle with the center of the inner ring 4, which is greater than 60 °.
Optionally, the outer ring is welded to the inner ring.
Optionally, the pin is welded to the nut sleeve.
Optionally, the third through hole is provided with an internal thread, and the pin is in threaded connection with the third through hole.
Optionally, the tab is fixedly connected to the pin.
Optionally, a radial fourth through hole is formed in the other end of the pin, and a ball collision device is arranged in a matched manner and limits axial displacement of the pin in the third through hole of the pin rod.
Optionally, the ball striking device comprises two striking balls and a striking ball spring arranged between the two striking balls.
Optionally, the pipe joint loosening prevention device is made of stainless steel.
Optionally, a plurality of third through holes are formed in the pin rod along the axial direction.
The application has at least the following beneficial technical effects:
the utility model provides a locking release of coupling can accomplish the installation and dismantle and fixed firm reliable, effective locking through very simple insertion, extraction operation.
Drawings
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is a schematic view of a snap ring construction of the present application;
FIG. 3 is a schematic view of a strut structure of the present application;
FIG. 4 is a schematic illustration of a pin construction of the present application;
wherein:
1-outer ring, 2-nut sleeve, 3-pin, 4-inner ring and 5-pin rod.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1 to 4.
Referring to fig. 1, the present application is directed to a pipe joint release preventing device, in which pipe joints are butt-joined by two pipe joint nuts, the pipe joint release preventing device comprising:
the clamping ring (as shown in figure 2) comprises an inner ring 4 and an outer ring 1, wherein a regular hexagonal groove is formed in the end face of one axial end of the inner ring 4 and is matched with a pipe joint nut, the outer ring 1 is of a fan-shaped structure and is arranged on the outer wall of the inner ring 4, a first through hole group which is as far as the center of a circle of the inner ring 4 is axially formed, two adjacent through holes in the first through hole group are tangent, a second through hole group which is perpendicular to the first through hole group is radially formed in the outer ring 1, and every two adjacent through holes in the second through hole group are tangent;
the support rod (as shown in figure 3) comprises a nut sleeve 2 and a pin rod 5, the nut sleeve 2 is matched with a pipe joint nut, the pin rod 5 is coaxially arranged on the outer wall of the nut sleeve 2, the pin rod 5 is in clearance fit with the through hole of the first through hole group, and a third through hole is radially formed in one end, far away from the nut sleeve 2, of the pin rod 5;
the pin 3 (as shown in fig. 4) is in clearance fit with the through hole of the second through hole group and is matched with the third through hole, and one end of the pin is provided with a pull ring.
According to the device, the clamping ring and the supporting rod are respectively sleeved on the two butted pipe joint nuts, the pin rod 5 is inserted into the through hole of the first through hole group on the outer ring 1, and the pin 3 is used for fixing, so that the anti-loosening setting of the pipe joint is realized.
In the embodiment, the included angle formed by the circle centers of the two through holes at the two ends in the first through hole group and the circle center of the inner ring 4 is more than 60 degrees, and the maximum rotation angle of the hexagonal wrenching platform is 60 degrees, namely the maximum rotation angle can be coincided with the original position, so that the pin rod 5 can certainly penetrate through the outer ring 1 during installation;
the outer ring 1 is welded on the inner ring 4, and the pin rod 5 is welded on the nut sleeve 2, so that the connection reliability is ensured.
The third through hole is seted up there is the internal thread, and round pin 3 and third through hole threaded connection have prevented falling of round pin 3, to this device, are dual anti-drop's device, in addition, can also set up to: the other end of the pin 3 is provided with a radial fourth through hole and is provided with a ball collision device in a matching way, and the ball collision device limits the axial displacement of the pin 3 in the third through hole of the pin rod 5. The ball collision device comprises two ball collision springs and a ball collision spring, the ball collision device is arranged between the two ball collision springs, the pin 3 can be inserted into the pin rod 5, the ball collision springs are reset when the ball collision devices pass through the third through hole of the pin rod 5, the ball collision devices on two sides are popped out, the pin 3 is limited on the pin rod 5, and when the pin 3 needs to be taken out, the ball collision devices on two sides can directly pull out the pin 3.
Meanwhile, a plurality of third through holes are formed in the pin rod 5 along the axial direction, so that the pins 3 can be simultaneously inserted into the through holes of the second through hole group on the outer ring 1 and the third through holes on the pin rod 5;
the pull ring is fixedly connected to the pin 3, so that manual operation of an operator is facilitated, and the limited operation space is fully utilized;
the anti-loosening device of the pipe joint is made of stainless steel, so that corrosion to the pipe joint caused by liquid and the like in contact during assembly and disassembly is avoided.
The utility model provides a locking release of coupling can accomplish the installation and dismantle and fixed firm reliable, effective locking through very simple insertion, extraction operation.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a locking release of coupling, the coupling is in the same place through two coupling nut butt joints, its characterized in that, locking release of coupling includes:
the clamping ring comprises an inner ring (4) and an outer ring (1), wherein a regular hexagonal groove is formed in the end face of one axial end of the inner ring (4) and is matched with the pipe joint nut, the outer ring (1) is of a fan-shaped structure and is arranged on the outer wall of the inner ring (4), a first through hole group which is as far as the circle center of the inner ring (4) is axially formed, two adjacent through holes in the first through hole group are tangent, a second through hole group which is perpendicular to the first through hole group is radially formed in the outer ring (1), and every two adjacent through holes in the second through hole group are tangent;
the support rod comprises a nut sleeve (2) and a pin rod (5), the nut sleeve (2) is matched with the pipe joint nut, the pin rod (5) is coaxially arranged on the outer wall of the nut sleeve (2), the pin rod (5) is in clearance fit with the through hole of the first through hole group, and a third through hole is radially formed in one end, far away from the nut sleeve (2), of the pin rod (5);
the pin (3) is of a rod-shaped structure, is in clearance fit with the through hole of the second through hole group, is adaptive to the third through hole, and is provided with a pull ring at one end.
2. The pipe joint release preventing device according to claim 1, wherein the centers of the two through holes at the two extreme ends of the first through hole group form an included angle of more than 60 ° with the center of the inner ring (4).
3. The pipe joint release prevention device according to claim 1, wherein the outer ring (1) is welded to the inner ring (4).
4. Device according to claim 1, characterized in that said pin (5) is welded to said nut sleeve (2).
5. The anti-loosening device for pipe joints according to claim 1, wherein the third through hole is internally threaded, and the pin (3) is in threaded connection with the third through hole.
6. The pipe joint release prevention device according to claim 1, wherein the pull ring is fixedly connected to the pin (3).
7. The anti-release device for pipe joints according to claim 1, wherein the other end of the pin (3) is provided with a fourth radial through hole and is adapted with a ball-striking device, which limits the axial displacement of the pin (3) in the third through hole of the pin rod (5).
8. The fitting release prevention device of claim 7, wherein the ball detent means comprises two balls and a ball detent spring disposed therebetween.
9. The fitting release prevention apparatus of claim 1, wherein the fitting release prevention apparatus is made of a stainless steel material.
10. The pipe joint release prevention device according to claim 1, wherein the third through hole provided in the pin shaft (5) is provided in plurality in the axial direction.
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)
| Publication Number | Publication Date |
|---|---|
| CN109268590A CN109268590A (en) | 2019-01-25 |
| CN109268590B true CN109268590B (en) | 2020-07-24 |
Family
ID=65154645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810972984.8A Active CN109268590B (en) | 2018-08-24 | 2018-08-24 | Anti-loosening device for pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109268590B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516788A (en) * | 2019-08-05 | 2020-08-11 | 苏州海帝精密机械有限公司 | Protection device for vehicle rod locking mechanism of folding vehicle |
| 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 |
| CN114215315B (en) * | 2021-12-17 | 2023-04-25 | 宿令雁 | Construction device for outer wall decoration surface for building construction and use method |
Family Cites Families (6)
| 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 |
| ITGE20050015A1 (en) * | 2005-02-16 | 2006-08-17 | Unidelta S P A | JOINT JOINT FOR FLUID TRANSPORT TUBES |
| CN103398244B (en) * | 2013-08-05 | 2015-08-05 | 广东中泽重工有限公司 | Locking movable connecting pipe 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 |
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2018
- 2018-08-24 CN CN201810972984.8A patent/CN109268590B/en active Active
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| Publication number | Publication date |
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| CN109268590A (en) | 2019-01-25 |
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