CN104089126A - Metal pipe connecting structure - Google Patents

Metal pipe connecting structure Download PDF

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Publication number
CN104089126A
CN104089126A CN201410290861.8A CN201410290861A CN104089126A CN 104089126 A CN104089126 A CN 104089126A CN 201410290861 A CN201410290861 A CN 201410290861A CN 104089126 A CN104089126 A CN 104089126A
Authority
CN
China
Prior art keywords
interior
connecting head
protuberance
metal tube
hollow slot
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
Application number
CN201410290861.8A
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Chinese (zh)
Inventor
宋捍东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Chuan Qi Steel Work Co Ltd
Original Assignee
Sichuan Chuan Qi Steel Work Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sichuan Chuan Qi Steel Work Co Ltd filed Critical Sichuan Chuan Qi Steel Work Co Ltd
Priority to CN201410290861.8A priority Critical patent/CN104089126A/en
Publication of CN104089126A publication Critical patent/CN104089126A/en
Pending legal-status Critical Current

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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
    • F16L37/00Couplings of the quick-acting type
    • F16L37/08Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/1205Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using hooks hinged about an axis placed behind a flange and which act behind the other flange
    • 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
    • F16L37/00Couplings of the quick-acting type
    • F16L37/08Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/127Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using hooks hinged about an axis

Abstract

The invention discloses a metal pipe connecting structure. The metal pipe connecting structure comprises a pipe body and a connecting head; annular projections are integrally arranged on the external surface on the end portion of the pipe body; the annular projection is provided with a plurality of snapping grooves; internal steps are arranged on the internal surface on the end portion of the pipe body; concave grooves are formed in the internal steps; the external surface on the end portion of the connecting head is provided with external steps which are matched with the internal steps; the external steps are provided with protruding portions which are matched with the concave grooves; the external surface in the middle of the connecting head is flexibly provided with a plurality of buckles; when the metal pipe connecting structure is used, the connecting head and the metal pipe are fixedly connected through the buckles and the fastening grooves, the external steps of the connecting head are inserted inside the internal steps, and the protruding portions on the external steps are inserted inside the concave grooves in the internal steps. The metal pipe connecting structure enables the metal pipe connecting speed to be fast, enables connected metal pipe to be good in sealing performance and solves the problem that the metal pipe connection requires welding or bolt connection in the prior art.

Description

The linkage structure of metal tube
Technical field
The present invention relates to pipeline field, relate in particular to a kind of linkage structure of metal tube.
Background technique
Metal tube is widely used in the every aspect of daily life, such as for delivery of various media such as oil, gas, water.In prior art, the Placement between metal tube mainly contains and is welded to connect, and the advantage such as good stability, Security are good owing to having for the metal tube being welded to connect, good airproof performance, resistance to deformation and long service life is widely used in all trades and professions.As China Patent No. " 201320273737.1 " discloses a kind of linkage structure of metal pipe element, its open day is on November 27th, 2013, its technological scheme is that the linkage structure of described metal pipe element comprises pipe fitting body and fittings body, pipe fitting body and fittings body are respectively equipped with pipe fitting joint and the joint joint of pegging graft and coordinating, joint joint is provided with the main passage of pegging graft for pipe fitting joint, pipe fitting joint is provided with the subaisle being connected with main passage conducting, and the position coordinating of pegging graft between described pipe fitting joint and joint joint forms welding region.
But the prior art that the above-mentioned patent document of take is representative, in actual use, still exists following defect: one,, because pipe fitting body and fittings body need to be welded to connect, the connection speed of pipe fitting is slow, causes installation efficiency low.Two, welding process needs special welder's operation, to having relatively high expectations of installation personnel.Three, in welding process, easily there is rosin joint or solder skip phenomenon, and then affect steadiness and the sealing of pipe fitting body and fittings body joint.Four, the internal diameter of pipe fitting body and fittings body varies in size, and after connecting, both joints form step, easily pile up impurity.Five, the pipe fitting body being welded to connect also exists the shortcoming that is not easy to dismounting and inconvenient maintenance.
In addition, in prior art, different according to the classification of transportation of substances, the flange that also has conventional between metal tube connects, but this Placement needs more bolt to fix, and still causes installation efficiency low.
Summary of the invention
The object of the invention is to overcome the above-mentioned problems in the prior art, a kind of linkage structure of metal tube is provided, adopt after the present invention, the connection speed of metal tube is faster, better tightness after metal tube connects, has solved metal tube in prior art and has connected and need to weld or bolted problem.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of linkage structure of metal tube, it is characterized in that: comprise body and connecting head, on the outer surface of described body end, integral type is provided with annular protrusion, on described annular protrusion, be provided with a plurality of buckling grooves, on the internal surface of described body end, be provided with interior step, on described interior step, be provided with hollow slot; On the outer surface of described connecting head end, be provided with the outer step suitable with interior step, on described outer step, be provided with the protuberance suitable with hollow slot, on the outer surface at described connecting head middle part, be movably set with a plurality of hasps; During installation, connecting head is fixedly connected with buckling groove by hasp with body, and in the interior step of outer step insertion of connecting head, in the hollow slot in the protuberance on outer step inserts on step.
Described interior step comprises interior landscape surface and interior vertical face, forms the angle of 75-90 degree between described interior landscape surface and interior vertical face, and described hollow slot is arranged in interior vertical face; On described outer step, be provided with the fitting surface matching with interior vertical face, described protuberance is arranged on fitting surface.
Described hollow slot is V-shaped groove, and described protuberance is V-arrangement protuberance.
Between described hollow slot and protuberance, be provided with O-ring seal.
Between described interior step and outer step, be provided with O-ring seal.
Employing the invention has the advantages that:
One,, in the present invention, by can rapidly metal tube and connecting head firmly being linked into an integrated entity hasp and coordinating of buckling groove, thereby make the installation efficiency between metal tube higher.And the structure of hasp and buckling groove is mature technology of the prior art, common installer just can complete installation fast, to installation personnel without specific (special) requirements.By the coordinating of outer step and interior step, protuberance, coordinate with hollow slot, can effectively prevent the medium seepage in body, make the better tightness after metal tube connects.Meanwhile, the present invention also makes the connecting tube after connection identical with metal tube internal diameter, is conducive to the smooth circulation of medium.Compare for the prior art of representative with China Patent No. " 201320273737.1 ", the present invention has not only solved metal tube in prior art and has connected and need to weld or bolted problem, also make the installation and removal of metal tube convenient, be conducive to later maintenance.
Two, in the present invention, described interior step comprises interior landscape surface and interior vertical face, forms the angle of 75-90 degree between described interior landscape surface and interior vertical face, and described hollow slot is arranged in interior vertical face; On described outer step, be provided with the fitting surface matching with interior vertical face, described protuberance is arranged on fitting surface, this structural reinforcing outer step and the tightness that interior step is connected, make the leakage proof better effects if between metal tube and connecting head.
Three, in the present invention, described hollow slot is V-shaped groove, described protuberance is V-arrangement protuberance, V-shaped groove matches with V-arrangement protuberance, not only can to connecting head, locate when mounted, accelerate both installation rates, can also strengthen the sealing that outer step is connected with interior step, guarantee that the medium in body can be from both joint seepages.
Four, in the present invention, between described hollow slot and protuberance, be provided with O-ring seal, between described interior step and outer step, be provided with O-ring seal, by the cooperation of double seal circle, not only can further improve sealing effect, stop medium seepage completely, also help and improve the working life that connects rear integrated piping.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 1 middle tube body;
Fig. 3 is the structural representation of connecting head in the embodiment of the present invention 1;
Fig. 4 is the structural representation of the embodiment of the present invention 2;
Fig. 5 is the structural representation of the embodiment of the present invention 3;
In figure, be labeled as: 1, body, 2, connecting head, 3, annular protrusion, 4, buckling groove, 5, interior step, 6, hollow slot, 7, outer step, 8, protuberance, 9, hasp, 10, O-ring seal, 11, fitting surface, 51, interior landscape surface, 52, interior vertical face.
Embodiment
Embodiment 1
A kind of linkage structure of metal tube, comprise body 1 and connecting head 2, on the outer surface of described body 1 end, integral type is provided with annular protrusion 3, on described annular protrusion 3, be provided with a plurality of buckling grooves 4, on the internal surface of described body 1 end, be provided with interior step 5, on described interior step 5, be provided with hollow slot 6; Described interior step 5 comprises interior landscape surface 51 and interior vertical face 52, forms the angle of 90 degree between described interior landscape surface 51 and interior vertical face 52, and described hollow slot 6 is arranged in interior vertical face 52.On the outer surface of described connecting head 2 ends, be provided with the outer step 7 suitable with interior step 5, on described outer step 7, be provided with the fitting surface 11 matching with interior vertical face 52, on described fitting surface 11, be provided with the protuberance 8 suitable with hollow slot 6.On the outer surface at described connecting head 2 middle parts, be movably set with a plurality of hasps 9; During installation, connecting head 2 is fixedly connected with buckling groove 4 by hasp 9 with body 1, the outer step 7 of connecting head 2 inserts in interior step 5, in hollow slot 6 in protuberance 8 on outer step 7 inserts on step 5, and in order to guarantee the sealing of joint, between hollow slot 6 and protuberance 8, be provided with O-ring seal 10, between interior step 5 and outer step 7, be provided with O-ring seal 10.Wherein, between interior landscape surface 51 and interior vertical face 52, form the structure of 90 degree angles, can strengthen outer step 7 and the tightness that interior step 5 is connected, make the leakage proof better effects if between metal tube and connecting head 2.
The preferred implementation of the present embodiment is, described hollow slot 6 is V-shaped groove, and described protuberance 8 is V-arrangement protuberance 8, but is not limited to above-mentioned preferred implementation, and for example, hollow slot 6 also can be U-groove bevel, and protuberance 8 also can be U-shaped protuberance 8.
Embodiment 2
A kind of linkage structure of metal tube, comprise body 1 and connecting head 2, on the outer surface of described body 1 end, integral type is provided with annular protrusion 3, on described annular protrusion 3, be provided with a plurality of buckling grooves 4, on the internal surface of described body 1 end, be provided with interior step 5, on described interior step 5, be provided with hollow slot 6; Described interior step 5 comprises interior landscape surface 51 and interior vertical face 52, forms the angle of 75 degree between described interior landscape surface 51 and interior vertical face 52, and described hollow slot 6 is arranged in interior vertical face 52.On the outer surface of described connecting head 2 ends, be provided with the outer step 7 suitable with interior step 5, on described outer step 7, be provided with the fitting surface 11 matching with interior vertical face 52, on described fitting surface 11, be provided with the protuberance 8 suitable with hollow slot 6.On the outer surface at described connecting head 2 middle parts, be movably set with a plurality of hasps 9; During installation, connecting head 2 is fixedly connected with buckling groove 4 by hasp 9 with body 1, the outer step 7 of connecting head 2 inserts in interior step 5, in hollow slot 6 in protuberance 8 on outer step 7 inserts on step 5, and in order to guarantee the sealing of joint, between hollow slot 6 and protuberance 8, be provided with O-ring seal 10, between interior step 5 and outer step 7, be provided with O-ring seal 10.Wherein, between interior landscape surface 51 and interior vertical face 52, form the structure of 75 degree angles, not only can strengthen the tightness that outer step 7 is connected with interior step 5, make the leakage proof better effects if between metal tube and connecting head 2, also make the joint of metal tube and connecting head 2 to seamlessly transit, avoid impurity in metallic conduit to be deposited in both joints.
Embodiment 3
A kind of linkage structure of metal tube, comprise body 1 and connecting head 2, on the outer surface of described body 1 end, integral type is provided with annular protrusion 3, on described annular protrusion 3, be provided with a plurality of buckling grooves 4, on the internal surface of described body 1 end, be provided with interior step 5, on described interior step 5, be provided with hollow slot 6; Described interior step 5 comprises interior landscape surface 51 and interior vertical face 52, forms the angle of 82 degree between described interior landscape surface 51 and interior vertical face 52, and described hollow slot 6 is arranged in interior vertical face 52.On the outer surface of described connecting head 2 ends, be provided with the outer step 7 suitable with interior step 5, on described outer step 7, be provided with the fitting surface 11 matching with interior vertical face 52, on described fitting surface 11, be provided with the protuberance 8 suitable with hollow slot 6.On the outer surface at described connecting head 2 middle parts, be movably set with a plurality of hasps 9; During installation, connecting head 2 is fixedly connected with buckling groove 4 by hasp 9 with body 1, the outer step 7 of connecting head 2 inserts in interior step 5, in hollow slot 6 in protuberance 8 on outer step 7 inserts on step 5, and in order to guarantee the sealing of joint, between hollow slot 6 and protuberance 8, be provided with O-ring seal 10, between interior step 5 and outer step 7, be provided with O-ring seal 10.Wherein, between interior landscape surface 51 and interior vertical face 52, form the structure of 82 degree angles, not only can strengthen the tightness that outer step 7 is connected with interior step 5, make the leakage proof better effects if between metal tube and connecting head 2, also make the joint of metal tube and connecting head 2 to seamlessly transit, avoid impurity in metallic conduit to be deposited in both joints.
In the present invention, the quantity of described buckling groove 4 is preferably 6, is evenly distributed on metal tube end surrounding, has both guaranteed quick mounting metal tube, guarantees that again the steadiness of the metal tube after connecting is best.
In the present invention, between described hollow slot 6 and protuberance 8, the mounting groove of O-ring seal 10 is arranged in hollow slot 6, and between described interior step 5 and outer step 7, the mounting groove of O-ring seal 10 is arranged on outer step 7.
In the present invention, described metal tube is identical with the internal diameter size of connecting head 2, wherein, described interior step 5 refers to the step structure of offering on body 1 inwall of metal tube end, and described outer step 7 refers to the step structure of offering on body 1 outer wall of connecting head 2 ends.
In the present invention, the linkage structure of described hasp 9 and buckling groove 4 preferably adopts the fastening structure of casing and case lid in toolbox, has advantage simple in structure, easy to use.

Claims (5)

1. the linkage structure of a metal tube, it is characterized in that: comprise body (1) and connecting head (2), on the outer surface of described body (1) end, integral type is provided with annular protrusion (3), on described annular protrusion (3), be provided with a plurality of buckling grooves (4), on the internal surface of described body (1) end, be provided with interior step (5), on described interior step (5), be provided with hollow slot (6); On the outer surface of described connecting head (2) end, be provided with the outer step (7) suitable with interior step (5), on described outer step (7), be provided with the protuberance (8) suitable with hollow slot (6), on the outer surface at described connecting head (2) middle part, be movably set with a plurality of hasps (9); During installation, connecting head (2) is fixedly connected with buckling groove (4) by hasp (9) with body (1), and in the outer step (7) of connecting head (2) inserts,, in step (5), the protuberance (8) on outer step (7) inserts in the hollow slot (6) on interior step (5).
2. the linkage structure of metal tube as claimed in claim 1, it is characterized in that: described interior step (5) comprises interior landscape surface (51) and interior vertical face (52), the angle that forms 75-90 degree between described interior landscape surface (51) and interior vertical face (52), described hollow slot (6) is arranged in interior vertical face (52); On described outer step (7), be provided with the fitting surface (11) matching with interior vertical face (52), described protuberance (8) is arranged on fitting surface (11).
3. the linkage structure of metal tube as claimed in claim 1 or 2, is characterized in that: described hollow slot (6) is V-shaped groove, and described protuberance (8) is V-arrangement protuberance (8).
4. the linkage structure of metal tube as claimed in claim 1, is characterized in that: between described hollow slot (6) and protuberance (8), be provided with O-ring seal (10).
5. the linkage structure of the metal tube as described in claim 1,2 or 4, is characterized in that: between described interior step (5) and outer step (7), be provided with O-ring seal (10).
CN201410290861.8A 2014-06-26 2014-06-26 Metal pipe connecting structure Pending CN104089126A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201410290861.8A CN104089126A (en) 2014-06-26 2014-06-26 Metal pipe connecting structure

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106122643A (en) * 2016-07-26 2016-11-16 浙江工业大学 A kind of dissection type vehicle fuel pipe snap joint
CN107143408A (en) * 2017-07-19 2017-09-08 合肥康尔信电力系统有限公司 A kind of generating set exhaust system assembly
CN111943420A (en) * 2020-08-17 2020-11-17 徐州工程学院 Multifunctional assembled and disassembled spliced water purifier

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2258066A (en) * 1940-03-11 1941-10-07 Youngstown Sheet And Tube Co Pipe joint
US3667784A (en) * 1970-04-03 1972-06-06 Heath & Sherwood Drilling Ltd Drill rod structure
DE3019623A1 (en) * 1980-05-22 1981-11-26 Dipl.-Ing. Wilhelm Markgraf KG Bauunternehmung, 8580 Bayreuth Flangeless connection for underground pipes - uses interlocking smooth ends or sleeve around stepped ends, both incorporating sealing rings
US4629221A (en) * 1983-04-05 1986-12-16 Hunting Oilfield Services (Uk) Ltd. Pipe connectors
CN2311684Y (en) * 1997-12-15 1999-03-24 李海波 Spigot-and-socket pipe joint
CN201897029U (en) * 2010-11-22 2011-07-13 北京北机机电工业有限责任公司 Eagle mouth type quick-change front sealing head device for pneumatic pulse injector
CN202834520U (en) * 2012-10-13 2013-03-27 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 Oil field surface pipeline connector
CN203431377U (en) * 2013-08-30 2014-02-12 重庆福鹏机械制造有限公司 Quick-mounting joint device for water pump
CN203948846U (en) * 2014-06-26 2014-11-19 四川川起钢结构有限公司 A kind of linkage structure of metal tube

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2258066A (en) * 1940-03-11 1941-10-07 Youngstown Sheet And Tube Co Pipe joint
US3667784A (en) * 1970-04-03 1972-06-06 Heath & Sherwood Drilling Ltd Drill rod structure
DE3019623A1 (en) * 1980-05-22 1981-11-26 Dipl.-Ing. Wilhelm Markgraf KG Bauunternehmung, 8580 Bayreuth Flangeless connection for underground pipes - uses interlocking smooth ends or sleeve around stepped ends, both incorporating sealing rings
US4629221A (en) * 1983-04-05 1986-12-16 Hunting Oilfield Services (Uk) Ltd. Pipe connectors
CN2311684Y (en) * 1997-12-15 1999-03-24 李海波 Spigot-and-socket pipe joint
CN201897029U (en) * 2010-11-22 2011-07-13 北京北机机电工业有限责任公司 Eagle mouth type quick-change front sealing head device for pneumatic pulse injector
CN202834520U (en) * 2012-10-13 2013-03-27 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 Oil field surface pipeline connector
CN203431377U (en) * 2013-08-30 2014-02-12 重庆福鹏机械制造有限公司 Quick-mounting joint device for water pump
CN203948846U (en) * 2014-06-26 2014-11-19 四川川起钢结构有限公司 A kind of linkage structure of metal tube

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106122643A (en) * 2016-07-26 2016-11-16 浙江工业大学 A kind of dissection type vehicle fuel pipe snap joint
CN106122643B (en) * 2016-07-26 2017-11-07 浙江工业大学 A kind of dissection type vehicle fuel pipe snap joint
CN107143408A (en) * 2017-07-19 2017-09-08 合肥康尔信电力系统有限公司 A kind of generating set exhaust system assembly
CN111943420A (en) * 2020-08-17 2020-11-17 徐州工程学院 Multifunctional assembled and disassembled spliced water purifier

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Application publication date: 20141008

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