CN103016863B - Pipeline connecting structure and hydraulic pipeline - Google Patents
Pipeline connecting structure and hydraulic pipeline Download PDFInfo
- Publication number
- CN103016863B CN103016863B CN201210554949.7A CN201210554949A CN103016863B CN 103016863 B CN103016863 B CN 103016863B CN 201210554949 A CN201210554949 A CN 201210554949A CN 103016863 B CN103016863 B CN 103016863B
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- attaching nut
- pipeline
- jointing construction
- pipeline jointing
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 92
- 239000010959 steel Substances 0.000 claims abstract description 92
- 230000008878 coupling Effects 0.000 claims description 54
- 238000010168 coupling process Methods 0.000 claims description 54
- 238000005859 coupling reaction Methods 0.000 claims description 54
- 238000005520 cutting process Methods 0.000 claims description 37
- 238000010276 construction Methods 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 20
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 230000013011 mating Effects 0.000 description 11
- 230000007423 decrease Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Joints With Sleeves (AREA)
Abstract
The invention discloses a pipeline connecting structure which comprises a steel pipe (1), a connecting nut (2) clamped on the steel pipe (1), a rubber pipe, an outer sleeve (4), a joint core (3) and a matching sleeve (6). The pipeline connecting structure provided by the invention has the advantages that the matching sleeve which can be matched along with the diameter of the steel pipe is additionally arranged in the joint core, so that the joint core can be directly connected with the steel pipes with different pipe diameters, the structure that the connection can be realized only by a transition joint in the prior art is changed, the number of parts is reduced, the number of connecting points in the whole pipeline is reduced, and the occurrence of leakage accidents is reduced. The steel pipes of corresponding models are sleeved through different types of matching sleeves, the types of the steel pipes which can be butted by the joint cores are expanded, the types of connecting accessories between the steel pipes and the joint cores are reduced, unnecessary resource waste caused by excessive accessories is avoided, complicated work of selecting accessories is caused during assembly, and the assembly time is saved. The invention also discloses a hydraulic pipeline applying the pipeline connecting structure.
Description
Technical field
The present invention relates to hydraulic tube field, particularly, relate to pipeline jointing construction, hydraulic pipe line.
Background technique
In hydraulic pipe line, need to consider the diameter of steel pipe, the selecting of the shape of hydraulic fluid port and Placement, sebific duct and joint core, the selection of transit joint, the selection etc. of connection fittings kind when mounting cement pipe joint.And often kind of accessory comprises Multiple Type, various fitment combination coupling just can complete the entirety assembling of rubber hose coupling, accessory required in sebific duct pipeline jointing construction will certainly be caused so various, accessory type kind is various, apolegamy intricate operation, make troubles to design, production, stock and storage, add the overall cost safeguarded.In addition, in the linkage structure of pipeline, usually need just can to realize steel pipe by transit joint and dock with the coupling of joint core.Connected element is more, may occur that the place of leakage point is more, will increase the care and maintenance work of pipeline like this.
As shown in Figure 1, in the prior art, steel pipe 1 ' and sebific duct realize being connected needs and add transit joint 6 ' in centre, and realize being connected by attaching nut 2 ' between transit joint 6 ' with joint core, and realize sealing by seal ring 7 '.The cutting ferrule 5 ' of the upper socket of steel pipe 1 ' is divided into surperlight type, light-duty and heavy, and also having three kinds to the attaching nut 2 ' of the steel pipe 1 ' adapted of identical caliber, the joint core 3 ' that transit joint 6 ' and sebific duct certainly will be caused like this to connect also needs three kinds of models that can match.So just cause number of spare parts to increase, must increase the weight of to produce, the difficulty of apolegamy and storage, efficiency of assembling is low and easily make mistakes.
Summary of the invention
The object of this invention is to provide a kind of pipeline jointing construction and use the hydraulic pipe line of this pipeline jointing construction, in order to improve actual use middle joint of a great variety, loaded down with trivial details and that pipeline tie point is too much drawback is installed.
To achieve these goals, the invention provides a kind of pipeline jointing construction, comprise steel pipe, the attaching nut be connected on steel pipe, with the joint core of fastener for connection and the overcoat that is connected in this joint core, described pipeline jointing construction also comprises coupling cover, the endoporus of one end of described joint core and described fastener for connection is shoulder hole, periphery is formed with the outside thread be engaged with the internal thread of described attaching nut, described coupling is placed in described shoulder hole, and the internal diameter of this coupling cover is identical with the external diameter of described steel pipe.
Preferably, on described steel pipe, fixed cover is connected to cutting ferrule, described attaching nut and described cutting ferrule clamping.
Preferably, the axial cross section of described cutting ferrule is wedge shape, this wedge shape has two tips extended to axial direction of both ends, the cutting ferrule of this wedge shape section forms two conical surfaces in the circumferential, the conical surface of side and the endoporus clamping of described attaching nut, the conical surface of opposite side engages with the described port overlapped that mates.
Preferably, the inwall of described mating port forms the first taper mouth, and this first taper mouth mates with the conical surface of described cutting ferrule opposite side.
Preferably, the close port of described steel pipe, radial expansion is formed with bulge loop, described attaching nut and described bulge loop clamping.
Preferably, described bulge loop forms two conical surfaces in the circumferential, the conical surface of bulge loop side and described attaching nut's clamping, the conical surface of opposite side with described mate to overlap engage.
Preferably, the inwall of described mating port forms the second taper mouth, and this second taper mouth mates with the conical surface of described bulge loop opposite side.
Preferably, sealing gasket is provided with between described coupling cover and the end difference of described shoulder hole.
Preferably, the hole wall of described shoulder hole was fluted to formation for last week, is provided with and can mates with described the seal ring overlapping and fit tightly in described groove.
Also proposed a kind of hydraulic pipe line in one embodiment of the present of invention, comprise the pipeline jointing construction described in above-described embodiment.
The pipeline jointing construction that the present invention proposes, can with the coupling cover of diameter of steel tube apolegamy by installing additional in joint core, joint core directly can be connected with the steel pipe of different tube diameters, change and need transit joint could realize the structure connected in the past, save the quantity of component in installation process, decrease the tie point in overall pipeline, decrease the generation of leakage accident.In addition, by the steel pipe of different types of coupling cover socket respective model, extend the kind that joint core can dock steel pipe, decrease the kind of connection fittings between steel pipe and joint core, avoid the unnecessary wasting of resources that accessory too much causes, and during assembling, cause the tedious work selecting accessory, save installation time.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation that in prior art, steel pipe is connected with joint core by transit joint;
Fig. 2 is the steel pipe that provides of the embodiment of the present invention by card sleeve clamp connected nut the structural representation be connected with joint core in succession;
Fig. 3 be the embodiment of the present invention provide steel pipe, cutting ferrule, attaching nut, coupling cover, sealing gasket, the decomposing schematic representation of linkage structure between joint core;
Fig. 4 is the structural representation that steel pipe that the embodiment of the present invention provides is connected by bulge loop clamping attaching nut and with joint core;
Fig. 5 is that the coupling cover that the embodiment of the present invention provides coordinates the schematic diagram realizing sealing configuration with seal ring.
Description of reference numerals
1 ' steel pipe 2 ' attaching nut
3 ' joint core 4 ' overcoat
5 ' cutting ferrule 6 ' transit joint
7 ' seal ring
1 steel pipe 11 bulge loop
2 attaching nut 3 joint core
31 end difference 4 overcoats
5 cutting ferrules 6 mate cover
61 first taper mouth 62 second taper mouths
71 sealing gasket 72 seal rings
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
The pipeline jointing construction that the present invention proposes, as shown in Figure 2, comprise steel pipe 1, the attaching nut 2 be connected on steel pipe 1, the joint core 3 be connected with steel pipe 1 and the overcoat 4 be connected in this joint core 3, pipeline jointing construction also comprises coupling cover 6, joint core 3 is shoulder hole with the endoporus of one end of fastener for connection, periphery is formed with the outside thread be engaged with the internal thread of attaching nut 2, coupling cover 6 is placed in shoulder hole, and the internal diameter of this coupling cover 6 is identical with the external diameter of steel pipe 1.
Joint core 3 is connected to overcoat 4 with the connecting end outer cover of sebific duct, and overcoat 4 can be buckled in joint core 3 in advance, forms integral type together with joint core 3.Sebific duct does not illustrate in accompanying drawing of the present invention, and sebific duct should be first engage with joint core 3, afterwards clamping overcoat 4 again, to coordinate with the fin on overcoat 4 inner peripheral surface to the fin of formation joint core 3 last week and clamps sebific duct, sebific duct can not be come off from joint core 3.Joint core 3 is set to shoulder hole with the endoporus of steel pipe 1 joint end, and as shown in Figure 2 and Figure 3, coupling cover 6 can be placed on the end difference 31 of shoulder hole.Under normal circumstances, the coupling outer circumferential face of cover 6 and the hole wall of shoulder hole are fitted, and the outer circumference diameter of namely mating cover 6 is identical with the diameter of bore of shoulder hole, makes steel pipe 1 stabilized structure after engaging with joint core 3.
The diameter of coupling cover 6 inner circumferential is identical with the outer circumference diameter of steel pipe 1, thus ensures steel pipe 1 stable connection after insertion coupling cover 6.Attaching nut 2 is threaded connection with joint core 3 after inserting coupling cover 6 by steel pipe 1, and attaching nut 2 is tightened steel pipe 1, completes the connection of pipeline.This kind of linkage structure eliminates transit joint, also makes in original linkage structure two tie points be reduced to a tie point.In addition, the specification of joint core 3 and attaching nut 2 remains unchanged, and the specification only changing coupling cover 6 mates different steel pipes 1, decreases the change of different model accessory, saves cost of production.
In addition, the screw thread that joint core 3 is engaged with attaching nut 2 can only have a kind of specification, and what need conversion is that the steel pipe 1 of different-diameter and the coupling that coordinates with steel pipe 1 overlap 6, and attaching nut's 2 need make the aperture of self and the diameter matches of steel pipe 1 outer wall.
Illustrate: the aperture as shoulder hole is the joint core 3 of 20mm, can connecting external diameter be the steel pipe 5 kinds of φ 12mm, φ 14mm, φ 15mm, φ 16mm, 18mm, the external diameter of design coupling cover 6 is φ 20mm, internal diameter is that φ 12mm, 14mm, φ 15mm, 16mm, φ 18mm mates with steel pipe 1, the Design of Screw Thread of joint core 3 is M26 × 1.5, and the internal thread of the nut of 5 kinds of steel pipes, 1 clamping is M26 × 1.5, but the aperture that nut mates with steel pipe 1 is φ 12mm, φ 14mm, 15mm, φ 16mm, φ 18mm five kinds.
Further careful explanation is done to the structure of all parts in linkage structure and annexation below.
Be clamping relation between attaching nut 2 and steel pipe 1, insert the endoporus of joint core 3 at steel pipe 1 after, attaching nut 2 is connected with joint core 3 and is blocked by steel pipe 1, makes steel pipe 1 can not depart from joint core 3.Therefore, firm snap-in structure is needed between attaching nut 2 and steel pipe 1.
In one embodiment of the present of invention, attaching nut 2 with the snap fit of steel pipe 1 can be: on steel pipe 1, fixed cover is connected to cutting ferrule 5, attaching nut 2 and cutting ferrule 5 clamping.
Cutting ferrule 5 needs the close end being directly fixed on steel pipe 1, a kind of structure of cutting ferrule 5 can be: the axial cross section of cutting ferrule 5 is wedge shape, this wedge shape has two tips extended to axial direction of both ends, the cutting ferrule 5 of this wedge shape section forms two conical surfaces in the circumferential, the conical surface of side and the endoporus clamping of attaching nut 2, the conical surface of opposite side engages with the port of described coupling cover 6.
Cutting ferrule 5 forms two conical surfaces in the circumferential, engages respectively with attaching nut 2 and coupling cover 6.The conical surface of cutting ferrule 5 side and attaching nut 2 clamping, the structure preferably selecting endoporus mutually to mate with this conical surface with the attaching nut of its clamping.Like this, attaching nut 2 by loose for structure thicker bottom attaching nut 3 for extruding force punishment, can make increasing by force intensity bottom attaching nut in the process screwed.
In addition, overlap 6 coordinate closely with cutting ferrule 5 to make coupling, as shown in Figure 3, in one embodiment of the present of invention, the inwall of coupling cover 6 port forms the first taper mouth 61, and this first taper mouth 61 mates with the conical surface of cutting ferrule 5 opposite side.The taper mouth of coupling cover 6 is arranged to the angle matched with the conical surface of cutting ferrule 5, make the conical surface of cutting ferrule 5 can stretch into certain distance in the port of coupling cover 6, make cutting ferrule 5 larger with the area of contact of mating cover 6, steadiness and the sealing of pipeline connection can be realized better.Meanwhile, the coupling cover 6 of this kind of structure engages with cutting ferrule 5 effect also serving and disperse extruding force, identical with the principle of cutting ferrule 5 clamping with attaching nut in above-described embodiment 2.Under normal circumstances, cutting ferrule 5 can select PSR cutting ferrule.
Set forth cutting ferrule 5, attaching nut 2 in above-described embodiment, mate the integrated connection that cover 6 cooperation realizes pipeline, cutting ferrule 5 is wherein connected on steel pipe 1 outside being, the inner peripheral surface of cutting ferrule 5 has teeth, can be embedded in the tube wall of steel pipe 1, what therefore realize with steel pipe 1 is fixing.Realize except joint except being made steel pipe 1, attaching nut 2, coupling cover 6 entirety by cutting ferrule 5, also proposed a kind of structure in one embodiment of the invention, as shown in Figure 4, in the close port of steel pipe 1, radial expansion is formed with bulge loop 11, attaching nut 2 and bulge loop 11 clamping.
A kind of generation type of bulge loop 11 passes through extrusion forming technology, mould is set with the inside and outside of body of steel pipe 1, inner mould selects steel core usually, and the diameter of steel core is identical with the inner diameter of steel pipe 1, namely fills up with the inner space of steel core by steel pipe 1.Afterwards, the outer circumferential face of steel pipe 1 is socketed an outer mold again, this outer mold is also tubular structure, and be that outside expansion of steel pipe 1 reserves specific space at the middle section position of outer mold, this space can make steel pipe 1 tube wall of expansion form the structure consistent with this spatial form.
During processing steel pipe 1, extrude to centre force from steel pipe 1 two ends to steel pipe 1, steel pipe 1 can outwards expand in the position of outer mold headspace, until fill up the headspace of outer mold, also form the shape of this headspace simultaneously.So far, the bulge loop 11 of steel pipe 1 machines.
From the practical function of bulge loop 11, also identical with the effect of cutting ferrule 5, be equally in order to attaching nut 2 and the joint mating cover 6, therefore, the structure that bulge loop 11 is formed also can be: bulge loop 11 forms two conical surfaces in the circumferential, the conical surface of bulge loop 11 side and described attaching nut 2 clamping, the conical surface of opposite side engages with described coupling cover 6.
For the structure of bulge loop 11, coupling cover 6 needs to be mated, and the structure of therefore mating cover 6 formation can be: the inwall of coupling cover 6 port forms the second taper mouth 62, and this second taper mouth 62 mates with the conical surface of bulge loop 11 opposite side.The conical surface of the second taper mouth 62 of coupling cover 6 is 24 ° with axial optimum angle, therefore, the conical surface of bulge loop 11 opposite side matched also is 24 ° with axial optimum angle, respective outer side edges mode is herein equivalent to the fit system mating cover 6 and cutting ferrule 5, and its advantage repeats no more herein.
In addition, coupling cover 6 can also have another kind of juncture with steel pipe 1, by the port enlarging of steel pipe 1, make it expand outwardly and form bell mouth shape structure, coupling cover 6 forms conical surface on the outer circumferential face of port, engages with the inwall of the steel pipe 1 after enlarging, and to be 60 ° of this kind of modes with the optimum angle of axis after mating the conical surface of cover 6 and steel pipe 1 enlarging be, and steel pipe 1 encases from outside mates cover 6, juncture before changing, can realize steel pipe 1 and the tight engagement of mating cover 6 equally.
Further, in order to improve the seal that pipeline connects, between coupling cover 6 and the end difference 31 of shoulder hole, sealing gasket 71 is provided with.The diameter of sealing gasket 71 outer rim is identical with the diameter of the outer circumferential face of coupling cover 6.After steel pipe 1 inserts coupling cover 6, attaching nut 2 is threaded with joint core 3, in the process connected, certain extruding force can be had to sealing gasket 71, sealing gasket 71 is crushed distortion, therefore make coupling overlap between 6 and sealing gasket 71, between sealing gasket 71 and end difference 31, there is no gap, reach sealing effect.
As shown in Figure 2, sealing gasket 71 is placed on the end difference 31 of shoulder hole, and sealing gasket 71 is large with end difference 31 grade, and coupling cover 6 can be changed according to actual needs, but sealing gasket 71 does not need extra replacing.
Except sealing gasket 71 can realize except sealing effect, seal ring 72 can also be used, usually use O type circle.As shown in Figure 5, in one embodiment of the present of invention, hole wall last week of shoulder hole is fluted to formation, and being provided with in groove can with the seal ring 72 mating cover 6 and fit tightly.
On the hole wall of shoulder hole, circumference fluting, puts into sizeable seal ring 72 wherein.The condition of seal ring 72 demand fulfillment to embed in groove, and the inner circumferential diameter of seal ring 72 is slightly less than the diameter of shoulder hole hole wall, and namely seal ring 72 is stuck in groove, and some slightly leans out groove in shoulder hole.Because the outer circumferential face diameter mating cover 6 is identical with the diameter of shoulder hole inner circumferential, therefore seal ring 72 slightly lean out groove part can with coupling cover 6 contact, and be subject to the extruding of coupling cover 6 and be out of shape, thus make coupling overlap between 6 and seal ring 72, between seal ring 72 and groove, there is no gap, reach the effect of sealing.
Also proposed a kind of hydraulic pipe line in one embodiment of the present of invention, comprise the pipeline jointing construction described in above-described embodiment.
The pipeline jointing construction that the present invention proposes, can with the coupling cover of diameter of steel tube apolegamy by installing additional in joint core, joint core directly can be connected with the steel pipe of different tube diameters, change and need transit joint could realize the structure connected in the past, save the quantity of component in installation process, decrease the tie point in overall pipeline, decrease the generation of leakage accident.In addition, by the steel pipe of different types of coupling cover socket respective model, extend the kind that joint core can dock steel pipe, decrease the kind of connection fittings between steel pipe and joint core 3, avoid the unnecessary wasting of resources that accessory too much causes, and during assembling, cause the tedious work selecting accessory, save installation time.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different mode of execution of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a pipeline jointing construction, comprise steel pipe (1), be connected to the attaching nut (2) on steel pipe (1), the joint core (3) be connected with steel pipe (1), and the overcoat (4) be connected in this joint core (3), it is characterized in that, described pipeline jointing construction also comprises coupling cover (6), described joint core (3) is shoulder hole with the endoporus of one end of described fastener for connection, periphery is formed with the outside thread be engaged with the internal thread of described attaching nut (2), described coupling cover (6) is placed in described shoulder hole, the internal diameter of this coupling cover (6) is identical with the external diameter of described steel pipe (1), described coupling cover (6) is matched according to the diameter of described steel pipe (1), and the specification of described joint core (3) and described attaching nut (2) remains unchanged.
2. pipeline jointing construction according to claim 1, is characterized in that, the upper fixed cover of described steel pipe (1) is connected to cutting ferrule (5), described attaching nut (2) and described cutting ferrule (5) clamping.
3. pipeline jointing construction according to claim 2, it is characterized in that, the axial cross section of described cutting ferrule (5) is wedge shape, this wedge shape has two tips extended to axial direction of both ends, the cutting ferrule (5) of this wedge shape section forms two conical surfaces in the circumferential, the conical surface of side and the endoporus clamping of described attaching nut (2), the conical surface of opposite side engages with the described port overlapping (6) that mates.
4. pipeline jointing construction according to claim 3, it is characterized in that, the inwall of described coupling cover (6) port forms the first taper mouth (61), and this first taper mouth (61) mates with the conical surface of described cutting ferrule (5) opposite side.
5. pipeline jointing construction according to claim 1, it is characterized in that, the close port of described steel pipe (1), radial expansion is formed with bulge loop (11), described attaching nut (2) and described bulge loop (11) clamping.
6. pipeline jointing construction according to claim 5, it is characterized in that, described bulge loop (11) forms two conical surfaces in the circumferential, the conical surface of bulge loop (11) side and described attaching nut (2) clamping, the conical surface of opposite side overlaps (6) engage with described coupling.
7. pipeline jointing construction according to claim 6, it is characterized in that, the inwall of described coupling cover (6) port forms the second taper mouth (62), and this second taper mouth (62) mates with the conical surface of described bulge loop (11) opposite side.
8. the pipeline jointing construction according to any one of claim 1 ~ 7, is characterized in that, is provided with sealing gasket (71) between described coupling cover (6) and the end difference (31) of described shoulder hole.
9. the pipeline jointing construction according to any one of claim 1 ~ 7, it is characterized in that, the hole wall of described shoulder hole was fluted to formation for last week, is provided with and can mates with described the seal ring (72) overlapping (6) and fit tightly in described groove.
10. a hydraulic pipe line, is characterized in that, comprises the pipeline jointing construction in claim 1 ~ 9 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554949.7A CN103016863B (en) | 2012-12-19 | 2012-12-19 | Pipeline connecting structure and hydraulic pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554949.7A CN103016863B (en) | 2012-12-19 | 2012-12-19 | Pipeline connecting structure and hydraulic pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016863A CN103016863A (en) | 2013-04-03 |
| CN103016863B true CN103016863B (en) | 2015-01-07 |
Family
ID=47965791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210554949.7A Active CN103016863B (en) | 2012-12-19 | 2012-12-19 | Pipeline connecting structure and hydraulic pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016863B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883818B (en) * | 2014-03-27 | 2015-09-23 | 中国矿业大学 | The device of hard steel pipe and viscoelasticity pipeline coupled transfer liquid |
| GB2565067A (en) | 2017-07-31 | 2019-02-06 | Eaton Ind Holding Gmbh | Formed pipe end-section of a pipeline and pipe screw connection |
| CN108458177A (en) * | 2018-03-28 | 2018-08-28 | 宝鸡市中煜徳钛业有限公司 | A kind of assembly type titanium alloy turbocharger tube |
| CN109282093A (en) * | 2018-08-17 | 2019-01-29 | 弗通流体科技（上海）有限公司 | Squash type pipe connection system |
| CN113217162B (en) * | 2021-05-17 | 2022-09-06 | 联合汽车电子有限公司 | Automatic backpressure control device, control method and engine bench test system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5074599A (en) * | 1990-10-30 | 1991-12-24 | Crawford Fitting Co. | Tube fitting |
| CN2373661Y (en) * | 1998-05-18 | 2000-04-12 | 赵立斌 | Easy connecting pipe joint device |
| US7240929B2 (en) * | 1997-04-15 | 2007-07-10 | Swagelok Company | Ferrule with plural inner diameters |
| CN101105250A (en) * | 2006-07-12 | 2008-01-16 | 王国林 | Threaded pipe joint |
| CN202381890U (en) * | 2011-12-31 | 2012-08-15 | 海盐双赢管件制造有限公司 | Bolted hose pipe joint |
-
2012
- 2012-12-19 CN CN201210554949.7A patent/CN103016863B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5074599A (en) * | 1990-10-30 | 1991-12-24 | Crawford Fitting Co. | Tube fitting |
| US7240929B2 (en) * | 1997-04-15 | 2007-07-10 | Swagelok Company | Ferrule with plural inner diameters |
| US7367595B2 (en) * | 1997-04-15 | 2008-05-06 | Swagelok Company | Ferrule having convex interior wall portion |
| CN2373661Y (en) * | 1998-05-18 | 2000-04-12 | 赵立斌 | Easy connecting pipe joint device |
| CN101105250A (en) * | 2006-07-12 | 2008-01-16 | 王国林 | Threaded pipe joint |
| CN202381890U (en) * | 2011-12-31 | 2012-08-15 | 海盐双赢管件制造有限公司 | Bolted hose pipe joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103016863A (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103016863B (en) | Pipeline connecting structure and hydraulic pipeline | |
| KR101195280B1 (en) | Apparatus for connecting a insertional pipe | |
| JP5361240B2 (en) | Flange coupling bolt | |
| US20150159753A1 (en) | Cylinder bulkhead holder | |
| CN101382218B (en) | Pipe joint | |
| CN204163819U (en) | Exhaust pipe connection structure and there is the automobile exhaust pipe assembly of this structure | |
| JP5818855B2 (en) | Pipe fitting | |
| CN102985739B (en) | Pipe connector | |
| JP5917198B2 (en) | Telescopic flexible joint and water faucet with saddle using the same | |
| CN218914045U (en) | Pipeline connecting device | |
| KR101472494B1 (en) | Saddle flange | |
| CN105605048A (en) | Single-connector winding pipe stainless steel hoop | |
| CN201526698U (en) | Ball type stop valve | |
| CN101852318B (en) | Flange-type connecting system of compressed air conveying pipeline | |
| CN212868883U (en) | Reducing metal joint | |
| CN201090854Y (en) | Tube connecting device | |
| CN211040043U (en) | Hose and hard tube connecting structure for packing liquid | |
| CN202674652U (en) | Quick-insertion joint | |
| CN202220931U (en) | Pipeline quick connecting assembly | |
| CN201916639U (en) | Steel wire plastic composite pipe connector | |
| CN219841201U (en) | Novel anticreep tubular product | |
| CN222950582U (en) | Corrugated pipe double-seal quick plug connector for gas delivery | |
| JP2019163830A (en) | Pipe joint | |
| CN210830925U (en) | Hydraulic rubber hose assembly | |
| JP2018071591A (en) | Joint method of polyethylene double-layer pipe for water supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |