CN207609889U - Plastics articulation - Google Patents
Plastics articulation Download PDFInfo
- Publication number
- CN207609889U CN207609889U CN201721368324.6U CN201721368324U CN207609889U CN 207609889 U CN207609889 U CN 207609889U CN 201721368324 U CN201721368324 U CN 201721368324U CN 207609889 U CN207609889 U CN 207609889U
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- Prior art keywords
- loose joint
- flush end
- nut
- sleeve
- joint sleeve
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Abstract
It includes loose joint flush end that the utility model, which discloses a kind of plastics articulation, loose joint nut, loose joint sleeve and O-ring seal, loose joint flush end blocks loose joint nut shoulder by shoulder, it is bonded with loose joint flush end after loose joint sleeve insertion O-ring seal, loose joint nut is compressed with loose joint sleeve threaded engagement, sealed interface, the loose joint flush end, loose joint nut and loose joint sleeve are coaxial, the loose joint nut and loose joint sleeve are respectively provided with screw thread, loose joint sleeve end face is provided with seal groove, for placing O-ring seal, loose joint sleeve and loose joint flush end inner wall are designed with 1 °~3 ° pattern drafts, a plurality of perpendicular seamed edge is arranged in loose joint nut outer rim.Plastics provided by the utility model, using centering is threadedly coupled, solves the problems, such as the fast and reliable connectivity problem of heavy-caliber PVDF pipeline and existing import articulation whole set procurement, shorten procurement cycle and purchase cost with articulation, avoid cost waste.
Description
Technical field
The utility model is related to a kind of plastics work suitable for fast and reliable connection on fluid plastic pipe transmission system
Connector solves the fast and reliable connectivity problem of existing domestic heavy-caliber PVDF pipeline.
Background technology
Converter valve is by thyristor, damping capacitor, equalizing capacitance, damping resistance, equalizing resistance, saturable reactor, thyristor
The parts compositions such as control unit, valve cooling water distribution pipeline road.Converter valve is the core equipment of DC transmission engineering, by successively
Three-phase alternating voltage is connected to DC terminal and obtains the control of desired DC voltage and realization to power, value accounts for about the change of current
Stand the 22~25% of complete set of equipments total price.The design of converter valve applies power electronic technique, light-operated switch technology, high pressure skill
The state-of-the-art technology and achievement in research of art, control technology and technology of pressure equalization, cooling technology, high pressure insulating materials, main technology
Difficult point is cooled down comprising converter valve, and current ± 1100kV extra-high voltage direct-current transmissions require cooling caliber to reach D110, therefore are badly in need of
The fast and reliable jointing of invention heavy-caliber PVDF pipeline.
Invention content
The purpose of this utility model is to provide a kind of plastics articulations to solve big mouth using centering is threadedly coupled
Fast and reliable connection between diameter PVDF pipelines and stainless steel pipes or heavy-caliber PVDF pipeline and heavy-caliber PVDF pipeline is asked
Topic.
To solve the above problems, the technical solution adopted in the utility model is：
A kind of plastics articulation, including loose joint flush end, loose joint nut, loose joint sleeve and O-ring seal, loose joint flush end are logical
It crosses shoulder and blocks loose joint nut shoulder, be bonded with loose joint flush end after loose joint sleeve insertion O-ring seal, loose joint nut and loose joint sleeve
Cylinder threaded engagement compresses, sealed interface,
The loose joint flush end, loose joint nut and loose joint sleeve are moulding,
The loose joint flush end, loose joint nut and loose joint sleeve are coaxial, loose joint flush end and loose joint sleeve can with intercommunication medium,
The loose joint nut and loose joint sleeve are respectively provided with screw thread,
The loose joint sleeve end face is provided with seal groove, for placing O-ring seal,
The loose joint sleeve lining is designed with 1 °~3 ° pattern drafts, is conducive to moulding and demoulds,
The loose joint flush end inner wall is designed with 1 °~3 ° pattern drafts, is conducive to moulding and demoulds,
A plurality of perpendicular seamed edge is arranged in the loose joint nut outer rim, increases screens, facilitates installation, solves to skid in installation process and ask
Topic.
The O-ring seal material is ethylene propylene diene rubber EPDM, and hardness is 65~75 Shao Er A type hardness testers.
The screw thread is sawtooth thread, and tooth form is right-angled trapezium, 3 degree of the flank angle of working face, non-working surface flank angle
30 degree, D110 caliber screw thread maximum diameters are 127.5, screw pitch 3.6, and D90 caliber screw thread maximum diameters are 107.5, screw pitch 3.6.
The utility model compared with prior art, has the following advantages that and advantageous effect：
(1) plastics provided by the utility model solve heavy-caliber PVDF pipeline with articulation using centering is threadedly coupled
Fast and reliable connectivity problem between stainless steel pipes or heavy-caliber PVDF pipeline and heavy-caliber PVDF pipeline；
(2) single monomer injection molding is used, solves the problems, such as existing import articulation whole set procurement, shortens procurement cycle
And purchase cost；
(3) there is shrinkage cavity in processing water channel position when solving the problems, such as to process using bar and connector wall thickness is underproof, keeps away
Cost waste is exempted from.
Description of the drawings
Fig. 1 is a kind of articulation assembly diagram described in the utility model embodiment；
Fig. 2 is loose joint flush end A-A sectional views described in the utility model embodiment；
Fig. 3 is loose joint flush end front view described in the utility model embodiment；
Fig. 4 is loose joint flush end vertical view described in the utility model embodiment；
Fig. 5 is loose joint nut A-A sectional views described in the utility model embodiment；
Fig. 6 is loose joint nut front view described in the utility model embodiment；
Fig. 7 is loose joint nut vertical view described in the utility model embodiment；
Fig. 8 is loose joint sleeve A-A sectional views described in the utility model embodiment；
Fig. 9 is loose joint sleeve front view described in the utility model embodiment；
Figure 10 is loose joint sleeve vertical view described in the utility model embodiment.
Specific implementation mode
Embodiments of the present invention are described in further detail with reference to embodiment and attached drawing, but the reality of the present invention
It is without being limited thereto to apply mode.
Embodiment 1
As shown in Figure 1, a kind of plastics articulation, including loose joint flush end 1, loose joint nut 2, loose joint sleeve 3 and O-shaped sealing
Circle 4, loose joint flush end 1 block 2 shoulder 2-1 of loose joint nut by shoulder 1-1, and loose joint sleeve 3 is embedded in after O-ring seal 4 and loose joint
Flush end 1 is bonded, and loose joint nut 2 is compressed with 3 threaded engagement of loose joint sleeve, sealed interface, the loose joint flush end, loose joint nut and work
Female connector cylinder is moulding,
The loose joint flush end 1, loose joint nut 2 and loose joint sleeve 3 are coaxial, and loose joint flush end 1 can be situated between with loose joint sleeve 3 with intercommunication
Matter,
As shown in Figure 2 to 4, the loose joint flush end 1 has uniform wall thickness with pipeline welding ends, is connect with loose joint sleeve 3
End face be provided with and increase seal face, 1 shoulder 1-1 of loose joint flush end is used for cutting ferrule loose joint nut 2, makes during the connection process, living
Female connector cylinder 3 and loose joint flush end 1 are static, 2 threaded engagement of loose joint nut, move outer circle and chamfering is arranged, and eliminate stress concentration, inner wall design
There is 1 °~3 ° of pattern draft, is conducive to moulding and demoulds.
As shown in Fig. 5~Fig. 7, shoulder 2-1 is arranged in loose joint nut 2, and for blocking loose joint end 1,2 outer circle of loose joint nut is set
A plurality of perpendicular seamed edge is set, slippage problems in installation process are solved, torque spanner or belt clamp can be used to be installed.
As shown in Figure 5, Figure 8, the loose joint nut 2 and loose joint sleeve 3 are both provided with sawtooth thread, and tooth form is right angle ladder
Shape, 3 degree of the flank angle of working face, 30 degree of non-working surface flank angle, D110 caliber screw thread maximum diameters are 127.5, screw pitch 3.6,
D90 caliber screw thread maximum diameters are 107.5, and screw pitch 3.6 passes through voltage-withstand test 2.1MPa 1min.
External screw thread root of the tooth has larger fillet, to reduce stress concentration, after internal and external threads screw, major diameter gapless convenient for pair
In, have rectangular thread transmission efficiency and the high feature of trapezoidal thread tooth form screw thread tooth base intensity concurrently.Biography for single load bearing
Dynamic screw thread.
As shown in Fig. 8~Figure 10, the loose joint sleeve 3 and pipeline welding ends have uniform wall thickness, connect with loose joint flush end 1
The end face connect is provided with seal groove, for placing O-ring seal, may be implemented repeatedly to connect fitted seal.3 inner wall of loose joint sleeve
It is designed with 1 °~3 ° of pattern draft, is conducive to moulding and demoulds.
EPDM material O-rings are selected for O-ring seal, since EPDM materials O-ring can be
Keep preferable elasticity under the conditions of -50 DEG C~160 DEG C, and EPDM materials have to ethylene glycol group water solution it is good
Any reaction will not occur therewith for compatibility, and it is advantageous to EPDM material O-rings, hardness is 65~75 Shao Er A type hardness testers.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiment of the utility model is not by above-mentioned
The limitation of embodiment, under other any Spirit Essences and principle without departing from the utility model made by change, modify, replace
In generation, simplifies combination, should be equivalent substitute mode, is included within the scope of protection of the utility model.
Claims (3)
1. a kind of plastics articulation, it is characterised in that：Including loose joint flush end, loose joint nut, loose joint sleeve and O-ring seal,
Loose joint flush end blocks loose joint nut shoulder by shoulder, is bonded with loose joint flush end after loose joint sleeve insertion O-ring seal, loose joint spiral shell
It is female to be compressed with loose joint sleeve threaded engagement, sealed interface,
The loose joint flush end, loose joint nut and loose joint sleeve are moulding,
The loose joint flush end, loose joint nut and loose joint sleeve are coaxial, loose joint flush end and loose joint sleeve can with intercommunication medium,
The loose joint nut and loose joint sleeve are respectively provided with screw thread,
The loose joint sleeve end face is provided with seal groove, for placing O-ring seal,
The loose joint sleeve lining is designed with 1 °~3 ° pattern drafts,
The loose joint flush end inner wall is designed with 1 °~3 ° pattern drafts,
A plurality of perpendicular seamed edge is arranged in the loose joint nut outer rim.
2. a kind of plastics articulation according to claim 1, it is characterised in that：The O-ring seal material is ternary
EP rubbers EPDM, hardness are 65~75 Shao Er A type hardness testers.
3. a kind of plastics articulation according to claim 1, it is characterised in that：The screw thread is sawtooth thread, tooth
Type is right-angled trapezium, and 3 degree of the flank angle of working face, 30 degree of non-working surface flank angle, D110 caliber screw thread maximum diameters are 127.5,
Screw pitch is that 3.6, D90 caliber screw thread maximum diameters are 107.5, screw pitch 3.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721368324.6U CN207609889U (en) | 2017-10-23 | 2017-10-23 | Plastics articulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721368324.6U CN207609889U (en) | 2017-10-23 | 2017-10-23 | Plastics articulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207609889U true CN207609889U (en) | 2018-07-13 |
Family
ID=62793639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721368324.6U Active CN207609889U (en) | 2017-10-23 | 2017-10-23 | Plastics articulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207609889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952968A (en) * | 2019-12-30 | 2020-04-03 | 西南石油大学 | High fatigue life type superhigh pressure fracturing union connects |
-
2017
- 2017-10-23 CN CN201721368324.6U patent/CN207609889U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952968A (en) * | 2019-12-30 | 2020-04-03 | 西南石油大学 | High fatigue life type superhigh pressure fracturing union connects |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Flexible joint for plastics Effective date of registration: 20201103 Granted publication date: 20180713 Pledgee: Bank of China Limited Guangzhou Pearl River Branch Pledgor: GUANGZHOU GOALAND ENERGY CONSERVATION TECH Co.,Ltd. Registration number: Y2020440000348 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220726 Granted publication date: 20180713 Pledgee: Bank of China Limited Guangzhou Pearl River Branch Pledgor: GUANGZHOU GOALAND ENERGY CONSERVATION TECH Co.,Ltd. Registration number: Y2020440000348 |