CN203404516U - Anti-disengaging sealing connecting structure of pipeline - Google Patents
Anti-disengaging sealing connecting structure of pipeline Download PDFInfo
- Publication number
- CN203404516U CN203404516U CN201320531064.5U CN201320531064U CN203404516U CN 203404516 U CN203404516 U CN 203404516U CN 201320531064 U CN201320531064 U CN 201320531064U CN 203404516 U CN203404516 U CN 203404516U
- Authority
- CN
- China
- Prior art keywords
- connecting structure
- pipe joint
- lock washer
- honeycomb duct
- anticreep
- 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.)
- Withdrawn - After Issue
Links
- 238000007789 sealing Methods 0.000 title abstract description 15
- 210000000515 tooth Anatomy 0.000 claims description 38
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000000903 blocking effect Effects 0.000 abstract 2
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model discloses an anti-disengaging sealing connecting structure of a pipeline. The anti-disengaging sealing connecting structure comprises a pipe joint, a diversion pipe, a locking nut, a sealing ring and a check ring. The end portion of the diversion pipe is inserted into the pipe joint, a thread at one end of the locking nut is connected to the outer wall of the pipe joint, and the other end portion of the locking nut is provided with a blocking part extending inwards in the radial direction. The sealing ring and the check ring are arranged on the diversion pipe in a sleeved mode and are pressed on the end portion of the pipe joint by the blocking part of the locking nut. The anti-disengaging sealing connecting structure further comprises a locking washer, wherein the locking washer is arranged on the diversion pipe in a sleeved mode and located inside the locking nut, the locking washer comprises an annular locking washer body provided with a plurality of internal teeth which are distributed in the circumferential direction, the internal teeth incline towards one side of the pipe joint from the locking washer body, barbed tips are formed by the tail ends of the internal teeth, and the tips embrace the diversion pipe. The anti-disengaging sealing connecting structure has the advantages that the diversion pipe does not loose easily, and the sealing effect is not affected even when the locking nut looses.
Description
Technical field
The utility model relates to a kind of linkage structure of pipeline, and particularly a kind of anticreep Hermetical connecting structure of pipeline, is particularly useful for the connection of various transfusion metallic conduits or highstrenghtpiston's hard tube.
Background technique
In carrying the pipeline of liquid, the connection between pipeline conventionally adopts flange to connect or adopts hatch lock collar to hold the form socket of pipeline tightly.Flange connects owing to there being the shortcoming that difficulty of processing is large, installation footprint is large, and needs welding (and some material cannot weld at all), so the mode that some occasion cannot be used flange to connect is carried out pipeline connection.And while adopting hatch lock collar to hold the form socket of pipeline tightly, need locking nut to continue that clamp ring is produced to impacting force and just can guarantee being tightly connected of pipeline, once that locking nut occurs is loosening, pipeline will get loose, and causes leak of liquid phenomenon to occur; Because machine intimate part installation structure is compact, limited space when locking nut is installed, causes locking nut coupling mechanism force less than normal, and through working long hours, locking nut is easily loosening, causes pipeline to get loose.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of anticreep Hermetical connecting structure of pipeline is provided, and this anticreep Hermetical connecting structure can prevent from leaking because of nut loosening.
The technological scheme that the utility model is realized above-mentioned purpose is:
A kind of anticreep Hermetical connecting structure of pipeline, comprise pipe joint, honeycomb duct, locking nut, seal ring and back-up ring, wherein, the end of honeycomb duct is inserted in pipe joint, one head thread of locking nut is connected on pipe joint outer wall, the end of other end is provided with radially inner stop part, and described seal ring and shield ring sleeve are pressed on the end of pipe joint on honeycomb duct and by the stop part of locking nut; It is characterized in that, also comprise lock washer, this lock washer is enclosed within on honeycomb duct and is positioned at locking nut, from the end of pipe joint, between the stop part of locking nut, be followed successively by seal ring, back-up ring and lock washer, wherein, lock washer comprises annular lock washer body, this lock washer body is provided with a plurality of internal tooths that along the circumferential direction distribute, this internal tooth is by lock washer body towards pipe joint lopsidedness, and the end of this internal tooth forms the tip of reversed acanthoid, and hold tightly outside honeycomb duct at this tip.
A preferred version of the present utility model, wherein, described internal tooth is along the circumferential direction uniformly distributed, and this internal tooth extends to form towards pipe joint lopsidedness from the inner ring surface of lock washer body, and the connection part place of internal tooth and lock washer body is arranged to arc transition.
A preferred version of the present utility model, wherein, the end of described internal tooth has the clinoplain towards pipe joint, and edge corresponding with honeycomb duct outer wall in this clinoplain, described tip forms.Further, described tip is circular arc, that is this tip is the sharp limit along the circular arc of the circumferencial direction of honeycomb duct.
A preferred version of the present utility model, wherein, described honeycomb duct is aluminum pipe, thrust in the body of honeycomb duct at the tip of described internal tooth.
A preferred version of the present utility model, wherein, this anticreep Hermetical connecting structure is two, is arranged at respectively the two ends of pipe joint.By described pipe joint and two anticreep Hermetical connecting structures, two honeycomb ducts are linked together.
A preferred version of the present utility model, wherein, one end corresponding with lock washer in described back-up ring is provided with recess, and the inner side of the stop part of described locking nut is provided with conical surface, and the minimum diameter of this conical surface is less than the external diameter of lock washer body; Internal tooth in described lock washer extend in described recess, and a side of lock washer body is adjacent on the end face of back-up ring, and the outer diameter side of another side is along being adjacent on the conical surface of stop part.
A preferred version of the present utility model, wherein, the end face of described pipe joint is provided with plane of inclination, and described seal ring acts on this plane of inclination.
A preferred version of the present utility model, wherein, described seal ring is O type rubber seal; Described honeycomb duct is metal tube or plastic rigid pipe.
A preferred version of the present utility model, wherein, described honeycomb duct is the oil guide pipe on the flow measurement converter being connected in oilling machine, this honeycomb duct is metal tube or plastic rigid pipe.
The working principle of the anticreep Hermetical connecting structure of pipeline of the present utility model is:
After anticreep Hermetical connecting structure of the present utility model installs, the stop part of locking nut is pressed on seal ring on the end of pipe joint by lock washer and back-up ring successively, formation is tightly connected, now outside honeycomb duct (can be also slightly to penetrate in the body of honeycomb duct) be held at the tip of the internal tooth in lock washer tightly, because described internal tooth is towards pipe joint lopsidedness, if therefore honeycomb duct occurs along the axial float that departs from pipe joint direction, can pull internal tooth distortion that the internal diameter of internal tooth is further dwindled, thereby increase coupling mechanism force, and the axial tension of honeycomb duct is larger, the coupling mechanism force of lock washer is also larger, realize self-locking, thereby make the honeycomb duct cannot play, guarantee sealing effect.
The utility model compared with prior art has following beneficial effect:
1, under hydrodynamic pressure or other external pull effects, can there is not play in honeycomb duct, guarantee to be tightly connected, and do not reveal.
Even if 2 do not tighten or occur loosening in the situation that at locking nut, lock washer still with honeycomb duct locking, guarantee that seal ring can be pressed on the end of pipe joint, still guarantees sealing effect.
3, simple in structure, easy processing, plays hoop than existing double over much easier, to tubing processibility, requires lower.
Accompanying drawing explanation
Fig. 1 is the structural representation (analysing and observe) of an embodiment of the anticreep Hermetical connecting structure of pipeline of the present utility model.
Fig. 2 is the axial explosive view of Fig. 1.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the sectional view of locking nut in Fig. 1.
Fig. 5 and Fig. 6 are the structural representation of lock washer in Fig. 1, and wherein, Fig. 5 is plan view, and Fig. 6 is left view (analysing and observe).
Fig. 7 is for showing the schematic diagram of the working principle of anticreep Hermetical connecting structure of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but mode of execution of the present utility model is not limited to this.
Referring to Fig. 1～Fig. 6, the anticreep Hermetical connecting structure of pipeline of the present utility model comprises pipe joint 5, honeycomb duct 6, locking nut 1, seal ring 4 and back-up ring 3, wherein, the end of honeycomb duct 6 is inserted in pipe joint 5, one head thread of locking nut 1 is connected on pipe joint 5 outer walls, the end of other end is provided with radially inner stop part 1-1, and described seal ring 4 and back-up ring 3 are enclosed within on honeycomb duct 6 and are pressed on the end of pipe joint 5 by the stop part 1-1 of locking nut 1; In addition, also comprise lock washer 2, this lock washer 2 is enclosed within on honeycomb duct 6 and is positioned at locking nut 1, from the end of pipe joint 5, between the stop part 1-1 of locking nut 1, be followed successively by seal ring 4, back-up ring 3 and lock washer 2, wherein, lock washer 2 comprises annular lock washer body 2-1, this lock washer body 2-1 is provided with a plurality of internal tooth 2-2 that along the circumferential direction distribute, this internal tooth 2-2 by lock washer body 2-1 towards pipe joint 5 lopsidedness, the end of this internal tooth 2-2 forms the most advanced and sophisticated 2-3 of reversed acanthoid, and this tip 2-3 holds tightly outside honeycomb duct 6.
Particularly, referring to Fig. 1～Fig. 6, described internal tooth 2-2 is 10, along the circumferential direction be uniformly distributed, this internal tooth 2-2 body is sheet, and its inner ring surface from lock washer body 2-1 extends to form towards pipe joint 5 lopsidedness, and the connection part place of this internal tooth 2-2 and lock washer body 2-1 is arranged to arc transition, stressed to improve, prevent that stress is concentrated.The end of described internal tooth 2-2 has the clinoplain towards pipe joint 5, described most advanced and sophisticated 2-3 edge corresponding with honeycomb duct 6 outer walls in this clinoplain forms, and this edge is the circular arc matching with honeycomb duct 6 surfaces, that is this tip 2-3 sharp limit that is circular arc.In present embodiment, described honeycomb duct 6 is aluminum pipe, and during work, the most advanced and sophisticated 2-3 of described circular arc is surrounded on outside aluminum pipe, and thrusts slightly in the body of honeycomb duct 6, thereby improves the effect of holding tightly, prevents that honeycomb duct 6 from getting loose.
Referring to Fig. 1～Fig. 6, one end corresponding with lock washer 2 in described back-up ring 3 is provided with recess 3-1, and 3-1 is tapered for this recess, matches with described internal tooth 2-2; The inner side of the stop part 1-1 of described locking nut 1 (i.e. a side corresponding with lock washer 2) is provided with conical surface 1-2, and the minimum diameter of this conical surface 1-2 is less than the external diameter of lock washer body 2-1; Internal tooth 2-2 in described lock washer 2 extend in recess 3-1, and a side of lock washer body 2-1 is adjacent on the end face of back-up ring 3, and the outer diameter side of another side is along being adjacent on the conical surface 1-2 of stop part 1-1.By the stop part 1-1 place at locking nut 1, conical surface 1-2 is set, like this, locking nut 1 is being tightened in the process of pipe joint 5, conical surface 1-2 position can constantly produce extruding to seal ring 4 along with locking nut 1 and the degree that screws of pipe joint 5, thereby has guaranteed the sealing effect of seal ring 4.
Referring to Fig. 1～Fig. 5, the end face of described pipe joint 5 is provided with plane of inclination 5-1, and it is upper that described seal ring 4 acts on this plane of inclination 5-1, and sealing circle 4 is O type rubber seal.By described plane of inclination 5-1 is set, between this plane of inclination 5-1 and honeycomb duct 6, form shrink space, like this when back-up ring 3 press seal circle 4, increase along with impacting force, seal ring 4 is constantly compressed in shrink space, thereby the outer surface that is closely attached on tightly plane of inclination 5-1 and honeycomb duct 6, obtains good sealing effect.
In present embodiment, described honeycomb duct 6 is for being connected to the oil guide pipe on the flow measurement converter in oilling machine, the two ends of pipe joint 5 all form an above-mentioned anticreep Hermetical connecting structure, thereby by these two anticreep Hermetical connecting structures, two oil guide pipes are coupled together.
Below in conjunction with accompanying drawing, the working principle of anticreep Hermetical connecting structure of the present utility model is further described:
Referring to Fig. 6, after installing, the stop part 1-1 of locking nut 1 is pressed on seal ring 4 on the plane of inclination 5-1 of end of pipe joint 5 by lock washer 2 and back-up ring 3 successively, formation is tightly connected, and now the most advanced and sophisticated 2-3 of the internal tooth 2-2 in lock washer 2 holds tightly outside honeycomb duct 6 (in seeing figure a).Because described internal tooth 2-2 is towards pipe joint 5 lopsidedness, on honeycomb duct 6, having a directed force F there is when departing from the axial float of pipe joint 5 directions it, can pull internal tooth 2-2 distortion that the internal diameter of internal tooth 2-2 is dwindled, coupling mechanism force increases, the most advanced and sophisticated 2-3 of internal tooth 2-2 can penetrate into the body interior (seeing b in figure) of honeycomb duct 6 slightly, increase along with F, the internal diameter of internal tooth 2-2 further dwindles, the most advanced and sophisticated 2-3 of internal tooth 2-2 can deeper penetrate into the body interior (seeing c in figure) of honeycomb duct 6, make the honeycomb duct 6 cannot play, guarantee sealing effect.And loosening even if locking nut 1 occurs, the coupling mechanism force between lock washer 2 and honeycomb duct 6 is still constant, so can not affect because of the loosening of locking nut 1 sealing effect.
Above-mentioned is preferably mode of execution of the utility model; but mode of execution of the present utility model is not subject to the restriction of foregoing; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within portion is included in protection domain of the present utility model.
Claims (10)
1. the anticreep Hermetical connecting structure of a pipeline, comprise pipe joint, honeycomb duct, locking nut, seal ring and back-up ring, wherein, the end of honeycomb duct is inserted in pipe joint, one head thread of locking nut is connected on pipe joint outer wall, the end of other end is provided with radially inner stop part, and described seal ring and shield ring sleeve are pressed on the end of pipe joint on honeycomb duct and by the stop part of locking nut; It is characterized in that, also comprise lock washer, this lock washer is enclosed within on honeycomb duct and is positioned at locking nut, from the end of pipe joint, between the stop part of locking nut, be followed successively by seal ring, back-up ring and lock washer, wherein, lock washer comprises annular lock washer body, this lock washer body is provided with a plurality of internal tooths that along the circumferential direction distribute, this internal tooth is by lock washer body towards pipe joint lopsidedness, and the end of this internal tooth forms the tip of reversed acanthoid, and hold tightly outside honeycomb duct at this tip.
2. the anticreep Hermetical connecting structure of pipeline according to claim 1, it is characterized in that, described internal tooth is along the circumferential direction uniformly distributed, this internal tooth extends to form towards pipe joint lopsidedness from the inner ring surface of lock washer body, and the connection part place of internal tooth and lock washer body is arranged to arc transition.
3. the anticreep Hermetical connecting structure of pipeline according to claim 2, is characterized in that, the end of described internal tooth has the clinoplain towards pipe joint, and edge corresponding with honeycomb duct outer wall in this clinoplain, described tip forms.
4. the anticreep Hermetical connecting structure of pipeline according to claim 3, is characterized in that, described tip is circular arc.
5. according to the anticreep Hermetical connecting structure of the pipeline described in any one in claim 1～4, it is characterized in that, described honeycomb duct is aluminum pipe, and thrust in the body of honeycomb duct at the tip of described internal tooth.
6. the anticreep Hermetical connecting structure of pipeline according to claim 1, is characterized in that, this anticreep Hermetical connecting structure is two, is arranged at respectively the two ends of pipe joint.
7. according to the anticreep Hermetical connecting structure of the pipeline described in any one in claim 1～4,6, it is characterized in that, one end corresponding with lock washer in described back-up ring is provided with recess, the inner side of the stop part of described locking nut is provided with conical surface, and the minimum diameter of this conical surface is less than the external diameter of lock washer body; Internal tooth in described lock washer extend in described recess, and a side of lock washer body is adjacent on the end face of back-up ring, and the outer diameter side of another side is along being adjacent on the conical surface of stop part.
8. the anticreep Hermetical connecting structure of pipeline according to claim 7, is characterized in that, the end face of described pipe joint is provided with plane of inclination, and described seal ring acts on this plane of inclination.
9. the anticreep Hermetical connecting structure of pipeline according to claim 1, is characterized in that, described seal ring is O type rubber seal; Described honeycomb duct is metal tube or plastic rigid pipe.
10. the anticreep Hermetical connecting structure of pipeline according to claim 1, is characterized in that, described honeycomb duct is the oil guide pipe on the flow measurement converter being connected in oilling machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531064.5U CN203404516U (en) | 2013-08-28 | 2013-08-28 | Anti-disengaging sealing connecting structure of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320531064.5U CN203404516U (en) | 2013-08-28 | 2013-08-28 | Anti-disengaging sealing connecting structure of pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404516U true CN203404516U (en) | 2014-01-22 |
Family
ID=49940453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320531064.5U Withdrawn - After Issue CN203404516U (en) | 2013-08-28 | 2013-08-28 | Anti-disengaging sealing connecting structure of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404516U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453248A (en) * | 2013-08-28 | 2013-12-18 | 托肯恒山科技（广州）有限公司 | Anti-dropping hermetically-connecting structure of pipelines |
| CN111577632A (en) * | 2020-05-18 | 2020-08-25 | 浙江当代风机有限公司 | Industrial fan convenient for connecting pipelines |
| CN113155376A (en) * | 2021-04-29 | 2021-07-23 | 广西玉柴机器股份有限公司 | Engine diesel oil leakage test method and tool |
-
2013
- 2013-08-28 CN CN201320531064.5U patent/CN203404516U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453248A (en) * | 2013-08-28 | 2013-12-18 | 托肯恒山科技（广州）有限公司 | Anti-dropping hermetically-connecting structure of pipelines |
| CN103453248B (en) * | 2013-08-28 | 2016-01-27 | 托肯恒山科技（广州）有限公司 | A pipeline anti-sealed connection structure |
| CN111577632A (en) * | 2020-05-18 | 2020-08-25 | 浙江当代风机有限公司 | Industrial fan convenient for connecting pipelines |
| CN113155376A (en) * | 2021-04-29 | 2021-07-23 | 广西玉柴机器股份有限公司 | Engine diesel oil leakage test method and tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140122 Effective date of abandoning: 20160127 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |