CN107448702A - The cold pipeline of liquid is rigidly connected Quick Release Hoop - Google Patents
The cold pipeline of liquid is rigidly connected Quick Release Hoop Download PDFInfo
- Publication number
- CN107448702A CN107448702A CN201710908871.7A CN201710908871A CN107448702A CN 107448702 A CN107448702 A CN 107448702A CN 201710908871 A CN201710908871 A CN 201710908871A CN 107448702 A CN107448702 A CN 107448702A
- Authority
- CN
- China
- Prior art keywords
- semicircle clip
- end block
- earrings
- docking
- safety latch
- 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
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 13
- 238000003032 molecular docking Methods 0.000 claims abstract description 50
- 238000012856 packing Methods 0.000 claims abstract description 12
- 241001504664 Crossocheilus latius Species 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends
- F16L21/065—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends tightened by tangentially-arranged threaded pins
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
It is rigidly connected Quick Release Hoop the invention discloses a kind of cold pipeline of liquid, including：Semicircle clip I, semicircle clip II, safety latch, earrings bolt, self-locking nut, saddle shaped washer, alignment pin, earrings bolt connection pin, packing ring, joint pin and hinge section；Semicircle clip I and the one end of semicircle clip II are hinged by hinge section, and the other end is butt end, and the butt end of semicircle clip I is provided with docking end block I, and semicircle clip II docks end and is provided with docking end block II；Safety latch is U-shaped cover body structure, is covered in outside docking end block I and docking end block II；Self-locking nut is assemblied in earrings bolt and stretched out on the tightening latch of safety latch；Semicircle clip I and semicircle clip II, which rotate, to be fastened, earrings bolt sequentially passes through the docking end block I of semicircle clip I by being inserted in the groove of the docking end block II of semicircle clip II, the contraposition in the bar hole on two side plates of safety latch, alignment pin and earrings bolt connection pin are assembled, realizes and locks finally by rotary self-locking nut.
Description
Technical field
The present invention relates to pipeline connecting parts field, more particularly to a kind of cold pipeline of liquid is rigidly connected Quick Release Hoop.
Background technology
The cold pipeline of liquid is rigidly connected in pipe-line system of the Quick Release Hoop applied to engine in Aviation Industry, to the cold pipeline of liquid
Play connection.In these industries, high are required to properties of product, to the performance requirements such as the material of product, intensity, structure compared with
Height, other non-products can substitute.For in general product in these industry applications, the material selection of clip is improper, does not reach
The requirement specified, and in some special environment, the material of common product can not meet its requirement.
Traditional clip is typically made up of the part such as band, fixture block, and the cold pipeline of liquid of the invention is rigidly connected Quick Release Hoop
It is made up of three parts, the cold pipeline of liquid is rigidly connected Quick Release Hoop component, aluminum convex-concave joint, rubber seal.Traditional clip one
As be all to be molded by metal plate punching, clip intensity, rigidity than relatively low, it is impossible to meet aviation pipeline connection the needs of.
The content of the invention
The present invention is directed to above-mentioned technical problem, proposes a kind of high intensity, safe, the cold pipeline rigidity of the flexible liquid of assembling
Connect Quick Release Hoop.
To achieve the above objectives, it is achieved through the following technical solutions：
The cold pipeline of liquid is rigidly connected Quick Release Hoop, including：Semicircle clip I, semicircle clip II, safety latch, earrings bolt, from
Split nut, saddle shaped washer, alignment pin, earrings bolt connection pin, packing ring, joint pin and hinge section；
Semicircle clip I and the inwall of semicircle clip II are provided with sealed groove；
The front end of semicircle clip I and semicircle clip II is hinged end, and the hinged end of semicircle clip I and semicircle clip II is equal
It is hinged by a joint pin and hinge section both ends；The rear end of semicircle clip I and semicircle clip II is butt end, semicircle clip I
Butt end is provided with docking end block I, and semicircle clip II docks end and is provided with docking end block II；
Wherein, dock end block I and docking end block II has been radially arranged and has extended radially through docking end block I and right for earrings bolt
Connect the bolt hole of end block II；Connect the positioning hole for being provided with end block I and being axially inserted into for alignment pin；Docking end block II opens up spiral shell
The position of keyhole is provided with the groove being completely embedded into for the earrings department of earrings bolt, and ensure the earrings of earrings bolt
Annular distance is axially extending, and the annular distance position for the earrings that docking end block II is located at earrings bolt is provided with and this annular distance central coaxial
Through hole；
Safety latch is U-shaped cover body structure, and the groove part of its single-ended opening is sequentially embedded completely accommodates semicircle clip I 1
The docking end block II of end block I and semicircle clip II is docked, and it blocks end and be provided with and is stretched out for the tightening latch part of earrings bolt
Through hole；The alignment pin for docking end block I is provided with two side plates of safety latch to stretch out and for docking end block II
The bar hole of through hole contraposition；
Self-locking nut is assemblied in earrings bolt and stretched out on the tightening latch of safety latch closure end through hole；
Wherein, the outer wall of end block I is docked to be equipped with being nested with the tightening latch of the earrings bolt of safety latch closure end internal time
Saddle shaped washer；
Earrings bolt connection pin is sequentially passed through the bar hole of safety latch side side plate by axial side, and docking end block II leads to
Hole, the annular distance of earrings bolt eventually pass through the bar hole of the opposite side side plate of safety latch, and with two side plate outer walls of safety latch
Be lined with packing ring, final earrings bolt connection pin by roll stone roller formula squeeze riveter and safety latch, dock end block II, earrings bolt and
Packing ring riveting is integrated.
Two end faces similar in two side plates of saddle shaped washer and safety latch are provided with guiding groove；Two of safety latch
Side plate inwall is provided with the projection that saddle shaped washer guiding and rotary stopper are realized with being oriented to groove cooperation.
Using the present invention of above-mentioned technical proposal, mode that semicircle clip I and semicircle clip II are connected through the hinge, realize
Rotate and fasten, then butt end radical first covers in safety latch on docking end (the i.e. semicircle card of semicircle clip I and semicircle clip II
The docking end block I of hoop I and the docking end block II of semicircle clip II are embedded in inside), then earrings bolt is by semicircle clip II
Dock and the closure end for docking end block I, saddle shaped washer and safety latch for sequentially passing through semicircle clip I is inserted in the groove of end block II
End plate, the contraposition in the bar hole on two side plates of safety latch is then carried out, assemble alignment pin and earrings bolt connection pin, finally fill
With self-locking nut, realize and lock eventually through rotary self-locking nut.
Wherein, the sealed groove shape of the inwall of semicircle clip I and semicircle clip II is convex according to docking pipeline docking location
Rise shape depending on；
Overall structure part uses high-temperature alloy material (GH4169), has excellent elevated temperature strength, and good is anti-oxidant
And the combination property such as hot corrosion resistance, good fatigue behaviour, fracture toughness.
To sum up, the present invention is a little：
1st, assembling structure is more flexible.
2nd, the assembling structure of safety latch is further ensured that integrally-built security.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the present invention can
Become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Brief description of the drawings
Totally 14 width accompanying drawing of the invention, wherein：
Fig. 1 is the overall structure front view schematic diagram of the present invention.
Fig. 2 is the side view schematic diagram of the present invention.
Fig. 3 is the structural representation of semicircle clip I of the present invention.
Fig. 4 is Fig. 3 A-A cross-sectional views.
Fig. 5 is the structural representation of semicircle clip II of the present invention.
Fig. 6 is Fig. 5 A-A cross-sectional views.
Fig. 7 is the safety latch front view schematic diagram of the present invention.
Fig. 8 is the safety latch side view schematic diagram of the present invention.
Fig. 9 is the safety latch top view illustration of the present invention.
Figure 10 is the earrings bolt arrangement schematic diagram of the present invention.
Figure 11 is the side view of the saddle shaped washer of the present invention.
Figure 12 is the front view of the saddle shaped washer of the present invention.
Figure 13 is the top view of the saddle shaped washer of the present invention.
Figure 14 is the structural representation of earrings bolt connection pin of the present invention.
In figure：1st, semicircle clip I, 1.1, docking end block I, 2, semicircle clip II, 2.1, connect end block II 2.1,2.2, groove,
3rd, safety latch, 3.1, side plate, 3.2, projection, 4, earrings bolt, 5, self-locking nut, 6, saddle shaped washer, 6.1, be oriented to groove, 7, fixed
Position pin, 8, earrings bolt connection pin, 9, packing ring, 10, joint pin 11, hinge section.
Embodiment
The cold pipeline of a kind of liquid as represented in figures 1 through 14 is rigidly connected Quick Release Hoop, including：Semicircle clip I 1, semicircle clip II
2, safety latch 3, earrings bolt 4, self-locking nut 5, saddle shaped washer 6, alignment pin 7, earrings bolt connection pin 8, packing ring 9, joint pin
10 and hinge section 11；
The front end of semicircle clip I 1 and semicircle clip II 2 is the hinged end of hinged end, semicircle clip I 1 and semicircle clip II 2
Portion is hinged by a joint pin 10 and the both ends of hinge section 11；The rear end of semicircle clip I 1 and semicircle clip II 2 is butt end,
The butt end of semicircle clip I 1 is provided with docking end block I 1.1, and semicircle clip II 2 docks end and is provided with docking end block II 2.1；
Wherein, dock end block I 1.1 and docking end block II 2.1 has been radially arranged and has extended radially through butt end for earrings bolt 4
The bolt hole of block I 1.1 and docking end block II 2.1；Connect the positioning hole for being provided with end block I 1.1 and being axially inserted into for alignment pin 7；
The position for opening up bolt hole of docking end block II 2.1 is provided with the groove being completely embedded into for the earrings department of earrings bolt 4
2.2, and ensure the annular distance of the earrings of earrings bolt 4 to be axially extending, docking end block II 2.1 is located at the earrings of earrings bolt 4
Annular distance position be provided with through hole with this annular distance central coaxial；
Safety latch 3 is U-shaped cover body structure, and the groove part of its single-ended opening is sequentially embedded completely accommodates semicircle clip I 1
The docking end block II 2.1 of end block I 1.1 and semicircle clip II 2 is docked, and its closure end is provided with the tightening latch for earrings bolt 4
The through hole that part is stretched out；It is provided with 3 two side plates 3.1 of safety latch and stretches out and use for docking the alignment pin 7 of end block I 1.1
In the bar hole 3.2 aligned with docking the through hole of end block II 2.1；
Self-locking nut 5 is assemblied in earrings bolt 4 and stretched out on the tightening latch of the closure end through hole of safety latch 3；
Wherein, dock and be nested with dress on the tightening latch for the earrings bolt 4 that the outer wall of end block I 1.1 blocks end internal time with safety latch 3
Equipped with saddle shaped washer 6；
Earrings bolt connection pin 8 is sequentially passed through the bar hole of the side side plate of safety latch 3 by axial side, docks end block II 2.1
Through hole, the annular distance of earrings bolt 4 eventually passes through the bar hole of the opposite side side plate of safety latch 3, and with two sides of safety latch 3
The outer wall of plate 3.1 is lined with packing ring 9, and final earrings bolt connection pin 8 is by rolling stone roller formula squeeze riveter and safety latch 3, docking end block II
2.1st, earrings bolt 4 and the riveting of packing ring 9 are integrated.
Saddle shaped washer 6 is provided with two end faces similar in two side plates 3.1 of safety latch 3 and is oriented to groove 6.1；Safety
Two inwalls of side plate 3.1 of door bolt 3 are provided with the projection that the guiding of saddle shaped washer 6 and rotary stopper are realized with being oriented to the cooperation of groove 6.1
3.3。
Using the present invention of above-mentioned technical proposal, mode that semicircle clip I 1 and semicircle clip II 2 are connected through the hinge is real
Now rotate and fasten, then safety latch 3 is first covered in the docking end of semicircle clip I 1 and semicircle clip II 2 (i.e. by butt end radical
The docking end block I 1.1 of semicircle clip I and the docking end block II 2.1 of semicircle clip II 2 are embedded in inside), then earrings bolt 4
Docking end block I 1.1, the saddle type of semicircle clip I are sequentially passed through by being inserted in the groove of the docking end block II 2.1 of semicircle clip II 2
The end plate at the closure end of packing ring 6 and safety latch 3, then carries out the contraposition in the bar hole on two side plates of safety latch 3, assembling positioning
Pin 7 and earrings bolt connection pin 8, self-locking nut 5 is finally assembled, realize and lock eventually through rotary self-locking nut 5.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member without departing from the scope of the present invention, when the technology contents using the disclosure above make it is a little change or be modified to
The equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modification, equivalent change and modification made for any of the above embodiments, in the range of still falling within technical solution of the present invention.
Claims (2)
- The Quick Release Hoop 1. the cold pipeline of liquid is rigidly connected, it is characterised in that including：Semicircle clip I (1), semicircle clip II (2), safety latch (3), earrings bolt (4), self-locking nut (5), saddle shaped washer (6), Alignment pin (7), earrings bolt connection pin (8), packing ring (9), joint pin (10) and hinge section (11)；The front end of the semicircle clip I (1) and semicircle clip II (2) is hinged end, semicircle clip I (1) and semicircle clip II (2) Hinged end be hinged by a joint pin (10) and hinge section (11) both ends；Semicircle clip I (1) and semicircle clip II (2) rear end is butt end, and semicircle clip I (1) butt end is provided with docking end block I (1.1), semicircle clip II (2) butt end Portion is provided with docking end block II (2.1)；Wherein, dock end block I (1.1) and docking end block II (2.1) has been radially arranged and has extended radially through docking for earrings bolt (4) The bolt hole of end block I (1.1) and docking end block II (2.1)；Connect to be provided with end block I (1.1) and be axially inserted into for alignment pin (7) Positioning hole；The position for opening up bolt hole of docking end block II (2.1) is provided with complete for the earrings department of earrings bolt (4) Embedded groove (2.2), and ensure the annular distance of the earrings of earrings bolt (4) to be axially extending, docking end block II (2.1) is located at The annular distance position of the earrings of earrings bolt (4) is provided with the through hole with this annular distance central coaxial；The safety latch (3) is U-shaped cover body structure, and the groove part of its single-ended opening is sequentially embedded completely accommodates semicircle clip I (1) docking end block I (1.1) and the docking end block II (2.1) of semicircle clip II (2), and it blocks end and is provided with for earrings The through hole that the tightening latch part of bolt (4) is stretched out；It is provided with described (3) two side plates (3.1) of safety latch for docking end block I (1.1) alignment pin (7) stretches out and the bar hole (3.2) for being aligned with docking the through hole of end block II (2.1)；The self-locking nut (5) is assemblied in earrings bolt (4) and stretched out on the tightening latch of safety latch (3) closure end through hole；Wherein, end block I (1.1) outer wall is docked with being nested with the tightening latch of the earrings bolt (4) of safety latch (3) closure end internal time It is equipped with saddle shaped washer (6)；Earrings bolt connection pin (8) is sequentially passed through the bar hole of safety latch (3) side side plate by axial side, docks end block II (2.1) through hole, the annular distance of earrings bolt (4) eventually pass through the bar hole of the opposite side side plate of safety latch (3), and and safety latch (3) two side plate (3.1) outer walls are lined with packing ring (9), and final earrings bolt connection pin (8) is by rolling stone roller formula squeeze riveter and peace Full door bolt (3), docking end block II (2.1), earrings bolt (4) and packing ring (9) riveting are integrated.
- The Quick Release Hoop 2. the cold pipeline of liquid according to claim 1 is rigidly connected, it is characterised in that：The saddle shaped washer (6) is provided with guiding groove with two end faces similar in two side plates (3.1) of safety latch (3) (6.1)；Two side plate (3.1) inwalls of safety latch (3) are provided with realizes that saddle shaped washer (6) is led with being oriented to groove (6.1) cooperation To the projection (3.3) with rotary stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710908871.7A CN107448702A (en) | 2017-09-29 | 2017-09-29 | The cold pipeline of liquid is rigidly connected Quick Release Hoop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710908871.7A CN107448702A (en) | 2017-09-29 | 2017-09-29 | The cold pipeline of liquid is rigidly connected Quick Release Hoop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107448702A true CN107448702A (en) | 2017-12-08 |
Family
ID=60498525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710908871.7A Pending CN107448702A (en) | 2017-09-29 | 2017-09-29 | The cold pipeline of liquid is rigidly connected Quick Release Hoop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107448702A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019494A (en) * | 2018-01-09 | 2018-05-11 | 台州椒星传动设备有限公司 | A kind of mechanism for axial adjusting of accurate retarding machine input shaft |
| CN110720374A (en) * | 2018-07-17 | 2020-01-24 | 中国热带农业科学院橡胶研究所 | Automatic rubber tapping machine |
| CN111894509A (en) * | 2020-08-25 | 2020-11-06 | 中国石油天然气集团有限公司 | Safety locking device and locking method for rotary blowout preventer |
| CN112599831A (en) * | 2020-12-11 | 2021-04-02 | 武汉轻工大学 | Cell stack tightening device |
| TWI744821B (en) * | 2020-03-13 | 2021-11-01 | 昆富工業股份有限公司 | Positioning clamp and carrier using the same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB261403A (en) * | 1925-11-12 | 1927-02-24 | Vladimir Antoine De Vulitch | A clamping ring for securing flexible tubes to metallic couplings or connections |
| CN201487428U (en) * | 2009-08-19 | 2010-05-26 | 孔国花 | Integrated hoop |
| CN201593658U (en) * | 2010-02-27 | 2010-09-29 | 襄樊超卓航空技术有限公司 | Lathedog |
| CN202597960U (en) * | 2012-04-16 | 2012-12-12 | 中国航空工业集团公司沈阳发动机设计研究所 | Rapidly dismounted steel clamp structure |
| CN103133805A (en) * | 2011-11-24 | 2013-06-05 | 中国航空工业集团公司沈阳发动机设计研究所 | Fast-dismantled clamp structure |
| CN206159694U (en) * | 2016-08-22 | 2017-05-10 | 湖州万士乐建筑工程机械有限公司 | High pressure clamp |
| CN207298156U (en) * | 2017-09-29 | 2018-05-01 | 大连长之琳科技发展有限公司 | Liquid cooling pipe road rigid connection Quick Release Hoop |
-
2017
- 2017-09-29 CN CN201710908871.7A patent/CN107448702A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB261403A (en) * | 1925-11-12 | 1927-02-24 | Vladimir Antoine De Vulitch | A clamping ring for securing flexible tubes to metallic couplings or connections |
| CN201487428U (en) * | 2009-08-19 | 2010-05-26 | 孔国花 | Integrated hoop |
| CN201593658U (en) * | 2010-02-27 | 2010-09-29 | 襄樊超卓航空技术有限公司 | Lathedog |
| CN103133805A (en) * | 2011-11-24 | 2013-06-05 | 中国航空工业集团公司沈阳发动机设计研究所 | Fast-dismantled clamp structure |
| CN202597960U (en) * | 2012-04-16 | 2012-12-12 | 中国航空工业集团公司沈阳发动机设计研究所 | Rapidly dismounted steel clamp structure |
| CN206159694U (en) * | 2016-08-22 | 2017-05-10 | 湖州万士乐建筑工程机械有限公司 | High pressure clamp |
| CN207298156U (en) * | 2017-09-29 | 2018-05-01 | 大连长之琳科技发展有限公司 | Liquid cooling pipe road rigid connection Quick Release Hoop |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019494A (en) * | 2018-01-09 | 2018-05-11 | 台州椒星传动设备有限公司 | A kind of mechanism for axial adjusting of accurate retarding machine input shaft |
| CN110720374A (en) * | 2018-07-17 | 2020-01-24 | 中国热带农业科学院橡胶研究所 | Automatic rubber tapping machine |
| TWI744821B (en) * | 2020-03-13 | 2021-11-01 | 昆富工業股份有限公司 | Positioning clamp and carrier using the same |
| CN111894509A (en) * | 2020-08-25 | 2020-11-06 | 中国石油天然气集团有限公司 | Safety locking device and locking method for rotary blowout preventer |
| CN112599831A (en) * | 2020-12-11 | 2021-04-02 | 武汉轻工大学 | Cell stack tightening device |
| CN112599831B (en) * | 2020-12-11 | 2022-04-29 | 武汉轻工大学 | Cell stack tightening device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107448702A (en) | The cold pipeline of liquid is rigidly connected Quick Release Hoop | |
| US2048424A (en) | Swivel nut lock | |
| EP2662538A3 (en) | Connection of a double-walled turbocharger housing | |
| CN203765576U (en) | Flange disassembly and assembly assisting tool | |
| CN207298156U (en) | Liquid cooling pipe road rigid connection Quick Release Hoop | |
| US9995250B2 (en) | Exhaust gas heat exchanger | |
| DE102014006262B4 (en) | Voltage compensating pipe section with integrated sealing function, especially for hot fluid pipelines | |
| US10180022B1 (en) | Hinge assembly to pivotably mount blind flange to pipe weld neck flange | |
| HRP20220117T1 (en) | Positive lock system for restrained joints of ductile iron spun pipes and fittings | |
| CN107725862A (en) | The split type mutual ball valve with lock of interconnection | |
| US20150089984A1 (en) | Key for a lock | |
| CN202597973U (en) | Pull-out resistant hose joint | |
| CN217762499U (en) | Pipeline connection quick-release clamp assembly | |
| CA2902492A1 (en) | Multipositional fitting | |
| CN207935624U (en) | Pipeline breach obturator | |
| CN108561598B (en) | High-temperature one-way valve | |
| EP3449161B1 (en) | Plug with attachable upper trunnion | |
| US20180045346A1 (en) | Pipe Coupling Having Arcuate Snap Couplers With Cylindrical Base Body | |
| BRPI0801659A2 (en) | closure for a tank | |
| CN208764052U (en) | A kind of integrated hoop component | |
| CN207740589U (en) | The pipe-line system of pipe connecting structure and chemical industry equipment | |
| CN207935491U (en) | A kind of Double-clack coaxial-type check-valves | |
| CN207093609U (en) | A kind of grid coupling | |
| CN205919005U (en) | Suspension type fast -assembling flange groove locking device of mechanism | |
| US8353208B2 (en) | Housing made of fiber-reinforced plastic |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171208 |