CN112524368B - Universal expansion joint - Google Patents
Universal expansion joint Download PDFInfo
- Publication number
- CN112524368B CN112524368B CN202011377640.6A CN202011377640A CN112524368B CN 112524368 B CN112524368 B CN 112524368B CN 202011377640 A CN202011377640 A CN 202011377640A CN 112524368 B CN112524368 B CN 112524368B
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- CN
- China
- Prior art keywords
- ball seat
- hole
- connecting pipe
- concave ball
- concave
- 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.)
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Classifications
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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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/026—Universal and axially displaceable joints
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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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
- F16L27/06—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces
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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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
- F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a universal expansion joint, comprising: the ball head connecting pipe is rotatably and spirally connected with the concave ball seat; one end of the concave ball seat, which is far away from the ball head connecting pipe, is telescopically sleeved with a telescopic pipe, and the telescopic pipe and the concave ball seat can do telescopic motion; the ball head connecting pipe, the concave ball seat and the middle part of the telescopic pipe are provided with mutually communicated through holes, and external flowing medium can flow through the through hole of the telescopic pipe, the through hole of the concave ball seat and the through hole of the ball head connecting pipe from the outside in sequence and then flows out of the outside; the concave ball seat and the telescopic pipe can do telescopic motion by shaking and deformation to release energy, so that the problem of leakage caused by cracks and cracks at a weak place of a pipeline system is solved; the ball head connecting pipe is connected with the concave ball seat in a rotatable and winding manner, so that the pipeline in rigid connection becomes flexible, a gap is generated in the rotatable and winding manner to obtain a certain space, and the problems that the sealing element between the pipelines is disassembled or the parts of the pipelines are replaced wastes time and labor are solved.
Description
Technical Field
The invention relates to a universal expansion joint, and belongs to the technical field of mechanical joints.
Background
Firstly, in all rigidly connected pipeline systems, as the used materials in the pipeline systems are all rigid materials, the rigidly connected pipeline systems can deform when the pipelines expand with heat and contract with cold; when pressure changes occur in the pipeline system, the rigidly connected pipeline system can generate vibration, and the pipelines are rigidly connected, so that the vibration and deformation of the pipeline system caused by the vibration can be restricted, and cracks can be generated at the weakest position in the pipeline system for releasing energy, for example, the welded position can generate cracks to generate leakage;
secondly, because there is no gap between the pipes which are rigidly connected, a certain space is left by disassembling and replacing the sealing parts between the pipes or replacing the parts of the pipes, which can not operate the large-scale pipe system and the pipe system with good rigidity by deforming and leaving the gap, thus leading to the incapability of replacing; or only the pipeline system can be cut into a plurality of sections, and the pipeline system is connected after the sealing elements or the pipeline parts are replaced, so that the time and labor are wasted, and the disassembly, assembly and replacement of parts are inconvenient.
Disclosure of Invention
In order to solve the technical problem, the invention provides a universal expansion joint.
The invention is realized by the following technical scheme.
The invention provides a universal expansion joint, comprising: the ball head connecting pipe is rotatably and spirally connected with the concave ball seat;
one end of the concave ball seat, which is far away from the ball head connecting pipe, is telescopically sleeved with a telescopic pipe, and the telescopic pipe and the concave ball seat can do telescopic motion;
the ball head connecting pipe, the concave ball seat and the telescopic pipe are provided with through holes communicated with each other in the middle, and external flowing media can flow through the through hole of the telescopic pipe, the through hole of the concave ball seat and the through hole of the ball head connecting pipe from the outside in sequence and then flow out of the outside.
The invention has the beneficial effects that: the rigidly connected pipeline system generates vibration, shaking and deformation to enable the concave ball seat and the telescopic pipe to do telescopic motion so as to release energy, and the problem of leakage caused by cracks and cracks at the weak part of the pipeline system is solved;
the ball head connecting pipe is connected with the concave ball seat in a rotatable and winding manner, so that the pipeline in rigid connection becomes flexible, a gap can be generated by rotation and winding to obtain a certain space, and the problems that the time and the labor are wasted when a sealing element between the pipelines is disassembled or parts of the pipelines are replaced are solved.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is an enlarged partial schematic view at A of FIG. 1;
FIG. 3 is an enlarged partial schematic view at B of FIG. 1;
FIG. 4 is an enlarged partial schematic view at D of FIG. 1;
in the figure: 1-flange a; 2-a telescopic pipe; 3-a concave ball seat; 4-ball head connecting pipe; 5-bolt; 6-cover plate; 7-a nut; 8-flange A; 9-O-shaped sealing ring A; 10-nylon retainer ring A; 11-cylindrical pin; 12-tightening the nut; 13-a compression spring; 14-set screws; 15-nylon retainer ring B; and 16-O-shaped sealing ring B.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
See fig. 1-4.
The invention provides a universal expansion joint, comprising: the ball head connecting pipe 4 is rotatably and spirally connected with the concave ball seat 3;
one end of the concave ball seat 3, which is far away from the ball head connecting pipe 4, is telescopically sleeved with an extension pipe 2, and the extension pipe 2 and the concave ball seat 3 can telescopically move;
the ball head connecting pipe 4, the concave ball seat 3 and the telescopic pipe 2 are provided with through holes communicated with each other at the middle parts, and external flowing media can flow through the through hole of the telescopic pipe 2, the through hole of the concave ball seat 3 and the through hole of the ball head connecting pipe 4 from the outside in sequence and then flow out of the outside.
The rigidly connected pipeline system generates vibration, shaking and deformation to enable the concave ball seat 3 and the telescopic pipe 2 to do telescopic motion so as to release energy, and the problem of leakage caused by cracks and cracks at the weak part of the pipeline system is solved;
the ball head connecting pipe 4 is rotatably and rotationally connected with the concave ball seat 3, so that the rigidly connected pipeline becomes flexible, a gap can be generated by rotation and rotation to obtain a certain space, and the problems of time and labor waste in detaching and replacing sealing elements between pipelines or replacing parts of the pipeline are solved.
The spherical surface recess is established to 3 upper ends of spill ball seats, 4 lower extremes of bulb connecting pipe are for being greater than half spheroidal sphere, 4 overcoat of bulb connecting pipe are equipped with and fix apron 6 at 3 terminal surfaces of spill ball seats, and 6 bottom inner faces of apron are the spherical surface recess, and spherical surface recess on the spill ball seat 3 and the spherical surface recess on the apron 6 constitute a space that supplies the rotatable and the wraparound of lower extreme spherical body of bulb connecting pipe 4, realize that bulb connecting pipe 4 and spill ball seat 3 are rotatable and the wraparound is connected.
The ball head connecting pipe 4 is screwed with the cover plate 6 through a bolt 5.
The top surface of the concave ball seat 3 and the bottom surface of the cover plate 6 are both provided with half-hole grooves forming through holes; the through hole corresponding to the through hole formed by the half hole groove is arranged on the bolt 5, lubricating media such as lubricating oil are input to the rotating surfaces of the ball head connecting pipe 4, the concave ball seat 3 and the cover plate 6 through the through hole formed by the concave ball seat 3 and the upper half hole groove of the cover plate 6 and the through hole on the bolt 5, impurities generated by rotation and orbital abrasion are discharged outwards through the through hole channel, and the rotating bolt 5 can be controlled to close the channel.
The outer end of the bolt 5 is provided with a nut 7 in a screwing mode, and the bolt 5 and the nut 7 are convenient to fixedly connect and install.
An annular groove is formed in the surface of the ball head connecting pipe 4, which is in contact with the concave ball seat 3, a nylon check ring A10 and an O-shaped sealing ring A9 are installed in the annular groove, and the nylon check ring A10 is located on the O-shaped sealing ring A9, so that the service life of the O-shaped sealing ring is prolonged, and the sealing pressure of the O-shaped sealing ring is improved.
And a flange A8 is fixedly welded on the end surface of the ball head connecting pipe 4 far away from the concave ball seat 3, so that the ball head connecting pipe is conveniently communicated with a pipeline through a flange A8.
And a flange A1 is fixedly welded at one end of the extension tube 2 far away from the concave ball seat 3, so that the extension tube is conveniently communicated with a pipeline through the flange A1.
The periphery of the concave ball seat 3 is telescopically sleeved on the inner surface of the telescopic pipe 2; and an adjusting device for adjusting the telescopic sleeving force of the concave ball seat 3 and the telescopic pipe 2 is arranged on the side wall of the telescopic pipe 2.
The adjusting device comprises a set screw 14 screwed through the side wall of the telescopic pipe 2 through threads and a set nut 12 screwed with the set screw 14, a closed hole is formed in the contact end of the set screw 14 and the telescopic pipe 2, a compression spring 13 and a cylindrical pin 11 are installed in the closed hole, the cylindrical pin 11 on the top of the compression spring 13 is in contact with the telescopic pipe 2, and the telescopic sleeving force of the concave ball seat 3 and the telescopic pipe 2 is adjusted; the concave ball seat 3 is provided with an annular groove corresponding to the cylindrical pin 11, when the extension tube 2 extends to a certain length, the cylindrical pin 11 is clamped in the annular groove of the concave ball seat 3, and the extension tube cannot extend and retract any more, so that the extension tube 2 is prevented from extending beyond a certain range to cause the concave ball seat 3 to be disconnected with the extension tube 2 to generate leakage.
An annular groove is arranged on the periphery of the concave ball seat 3, which is in contact with the extension tube 2, a nylon check ring B15 and an O-shaped sealing ring B16 are arranged in the annular groove, and the two can do linear motion along the axial direction. The sealing is performed by an O-shaped sealing ring 16, and a nylon check ring 15 is added on the O-shaped sealing ring 16 to increase the durability and the sealing pressure. The nylon retainer ring prevents the O-ring 16 from being broken by being forced into the gap.
Claims (8)
1. A universal expansion joint, comprising: the ball head connecting pipe (4) and the concave ball seat (3) are connected in a rotating and winding way;
one end of the concave ball seat (3) far away from the ball head connecting pipe (4) is telescopically sleeved with a telescopic pipe (2), and the telescopic pipe (2) and the concave ball seat (3) can telescopically move;
through holes which are communicated with each other are formed in the ball head connecting pipe (4), the concave ball seat (3) and the middle part of the telescopic pipe (2), and external flowing media can flow through the through hole of the telescopic pipe (2), the through hole of the concave ball seat (3) and the through hole of the ball head connecting pipe (4) from the outside in sequence and then flow out of the outside;
the ball head connecting pipe (4) is screwed with the cover plate (6) through a bolt (5); the top surface of the concave ball seat (3) and the bottom surface of the cover plate (6) are provided with half-hole grooves forming through holes; the through hole that the through-hole that constitutes with half hole groove on bolt (5) corresponds the department is equipped with the through-hole, through the through-hole that half hole groove constitutes and the through-hole on bolt (5) on concave ball seat (3) and apron (6), and the through-hole that half hole groove constitutes can the steerable closing of rotatory bolt (5).
2. The universal expansion joint of claim 1, wherein: the spherical surface groove is established to spill ball seat (3) upper end, bulb connecting pipe (4) lower extreme is for being greater than semi-spheroidal sphere, bulb connecting pipe (4) overcoat is equipped with apron (6) of fixing at spill ball seat (3) terminal surface, and apron (6) bottom inner face is spherical surface groove, and spherical surface groove on spill ball seat (3) and the spherical surface groove on apron (6) constitute a space that supplies the rotatable and the orbit of the lower extreme spherical body of bulb connecting pipe (4).
3. The universal expansion joint of claim 1, wherein: and the outer end of the bolt (5) is screwed with a nut (7).
4. The universal expansion joint of claim 1, wherein: an annular groove is formed in the surface of the ball head connecting pipe (4) in contact with the concave ball seat (3), a nylon check ring A (10) and an O-shaped sealing ring A (9) are installed in the annular groove, and the nylon check ring A (10) is located on the O-shaped sealing ring A (9).
5. The universal expansion joint of claim 1, wherein: and a flange A (8) is fixedly welded on the end surface of the ball head connecting pipe (4) far away from the concave ball seat (3).
6. The universal expansion joint of claim 1, wherein: and a flange A (1) is fixedly welded at one end of the telescopic pipe (2) far away from the concave ball seat (3).
7. The universal expansion joint of claim 1, wherein: the adjusting device comprises a set screw (14) which is screwed through the side wall of the telescopic pipe (2) through threads and a set nut (12) which is screwed with the set screw (14), a blank hole is formed in the contact end of the set screw (14) and the telescopic pipe (2), a compression spring (13) and a cylindrical pin (11) are installed in the blank hole, and the cylindrical pin (11) on the top of the compression spring (13) is in contact with the telescopic pipe (2); the concave ball seat (3) is provided with an annular groove corresponding to the cylindrical pin (11), and the cylindrical pin (11) can be clamped into the annular groove of the concave ball seat (3).
8. The universal expansion joint according to claim 7, wherein: an annular groove is arranged on the periphery of the concave ball seat (3) contacting with the telescopic pipe (2), and a nylon retainer ring B (15) and an O-shaped sealing ring B (16) are arranged in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011377640.6A CN112524368B (en) | 2020-11-30 | 2020-11-30 | Universal expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011377640.6A CN112524368B (en) | 2020-11-30 | 2020-11-30 | Universal expansion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112524368A CN112524368A (en) | 2021-03-19 |
| CN112524368B true CN112524368B (en) | 2022-07-05 |
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ID=74995426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011377640.6A Active CN112524368B (en) | 2020-11-30 | 2020-11-30 | Universal expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112524368B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623588B (en) * | 2021-08-24 | 2023-06-30 | 智城六新数字科技研究院(南京)有限公司 | Intelligent integrated lamp post based on control of Internet of things |
| CN117450340B (en) * | 2023-12-22 | 2024-04-05 | 江西艾林克压缩机有限公司 | Air compressor |
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| CN2753941Y (en) * | 2004-11-01 | 2006-01-25 | 郑文科 | Variable-angle concrete pump line joint |
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| CN200993294Y (en) * | 2006-12-19 | 2007-12-19 | 贵州航天新力铸锻有限责任公司 | High pressure fluid pulse buffer |
| CN201129588Y (en) * | 2007-12-25 | 2008-10-08 | 刘运章 | Antiseize heat resisting spherical pipe joint |
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| CN211145698U (en) * | 2019-11-18 | 2020-07-31 | 江苏星河阀门有限公司 | Pipe joint with compensation function |
| CN211599222U (en) * | 2019-12-13 | 2020-09-29 | 浙江东禾机械科技股份有限公司 | Dampproofing rust-resistant easy oiling fastener |
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| US8740258B2 (en) * | 2011-08-23 | 2014-06-03 | Fabrication of Rig and Exploration Equipment, Inc. | Two-axis adjustable mud pipe joint |
| CN205689553U (en) * | 2016-06-23 | 2016-11-16 | 绍兴上虞中塘电器五金厂 | A kind of hollow bolt |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0781700A1 (en) * | 1995-12-28 | 1997-07-02 | The Torrington Company | Track roller with plug |
| CN2753941Y (en) * | 2004-11-01 | 2006-01-25 | 郑文科 | Variable-angle concrete pump line joint |
| CN1877184A (en) * | 2006-05-29 | 2006-12-13 | 阎瑞杰 | Universal expansion joint for oil seal pipeline |
| CN200993294Y (en) * | 2006-12-19 | 2007-12-19 | 贵州航天新力铸锻有限责任公司 | High pressure fluid pulse buffer |
| CN201129588Y (en) * | 2007-12-25 | 2008-10-08 | 刘运章 | Antiseize heat resisting spherical pipe joint |
| CN102026561A (en) * | 2008-05-13 | 2011-04-20 | 雅固拉国际精密工业有限公司 | Downhill engagement and motivity adjustment |
| CN103062536A (en) * | 2012-09-29 | 2013-04-24 | 徐州支点机电设备有限公司 | Flange convenient to maintain |
| KR101318774B1 (en) * | 2013-02-28 | 2013-10-16 | 신진정공 주식회사 | Ball type expansion joint |
| CN203286174U (en) * | 2013-06-18 | 2013-11-13 | 中国长江电力股份有限公司 | Universal telescopic pipeline connecting device |
| CN205371188U (en) * | 2015-12-15 | 2016-07-06 | 广东晾霸智能科技有限公司 | Expansion bar |
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| CN211599222U (en) * | 2019-12-13 | 2020-09-29 | 浙江东禾机械科技股份有限公司 | Dampproofing rust-resistant easy oiling fastener |
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| Publication number | Publication date |
|---|---|
| CN112524368A (en) | 2021-03-19 |
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