CN109869549A - A kind of detachable holding tube Hermetical connecting structure - Google Patents
A kind of detachable holding tube Hermetical connecting structure Download PDFInfo
- Publication number
- CN109869549A CN109869549A CN201910326071.3A CN201910326071A CN109869549A CN 109869549 A CN109869549 A CN 109869549A CN 201910326071 A CN201910326071 A CN 201910326071A CN 109869549 A CN109869549 A CN 109869549A
- Authority
- CN
- China
- Prior art keywords
- fixed structure
- connector
- holding tube
- hermetical connecting
- detachable holding
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000008859 change Effects 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Abstract
The invention discloses a kind of detachable holding tube Hermetical connecting structures, a kind of detachable holding tube Hermetical connecting structure, the connection of gas output end and tube at one end for system assembly connection component seals, the connector on the gas output end including being connected to system assembly connection component；The detachable fixed structure being tightly connected with duct wall；Squeeze for connector and fixed structure the push structure of sealing.The present invention has both feature easy to disassemble, that pressure bearing and seal performance is excellent, and same conduit can still keep excellent pressure bearing and seal performance with after fixed structure assembly for several times.
Description
Technical field
The invention belongs to mechanical connection technical fields, and in particular to a kind of detachable holding tube Hermetical connecting structure.
Background technique
Complex fluid control system needs conduit to form gas circuit, it is desirable that conduit and system assembly connection position are in experience system
(pressure-bearing 1.0MPa, leakproofness are better than 1.0 × 10 to the reliable pressure bearing and seal of energy after applying working condition (temperature, vibration and impact etc.)-7Pa·
M3/s), part conduit also needs to meet the functional requirement assembled and disassembled again after undergoing system applying working condition, it is therefore desirable to using removable
Unload holding tube Hermetical connecting structure.
Currently, there are two main classes for existing holding tube Hermetical connecting structure: one kind is based on high molecular material (such as polytetrafluoroethyl-ne
Alkene) sealing element holding tube Hermetical connecting structure, which is convenient for disassembly, but pressure bearing and seal ability general (usually 10- 7Pam3/s magnitude), the problem of the deficiency of sealability caused by stress relaxation can be faced after experience system applying working condition；It is another
Class is the holding tube Hermetical connecting structure based on metal material (such as copper) sealing element, and the structure pressure bearing and seal performance is excellent (usually
Better than 10-7Pam3/s magnitude), there is good adaptability to system applying working condition, but face the difficult problem of disassembly.
We has developed a kind of detachable holding tube Hermetical connecting structure in order to solve problem above.
Summary of the invention
The object of the invention is that providing a kind of detachable holding tube Hermetical connecting structure to solve the above-mentioned problems.
The present invention through the following technical solutions to achieve the above objectives:
A kind of detachable holding tube Hermetical connecting structure, gas output end and tube at one end for system assembly connection component
Connection sealing, comprising:
The connector being connected on the gas output end of system assembly connection component；
The detachable fixed structure being tightly connected with duct wall；
Squeeze for connector and fixed structure the push structure of sealing.
Specifically, fixed structure is sleeved on duct wall, and fixed structure is made of memorial alloy, heats fixed structure,
Fixed structure generates Phase change shrinkage and holds conduit tightly.
Further, the first end of fixed structure is formed as circular conical surface；With the of fixed structure on the inside of the first end of connector
One end squeezes sealing cooperation.
Further, it is additionally provided between the tip inside surface of connector and the first end of fixed structure for sealing
Sealed taper pad.
Specifically, push structure includes swivel nut, and swivel nut matches connection with joint screw thread, abutting portion is arranged on swivel nut, pushes against
Portion is used to act on the second end of fixed structure toward abutting when the precession of connector direction in swivel nut.
Further, the first end of swivel nut is internally provided with internal screw thread, is provided with external screw thread on the outside of the first end of connector.
Preferably, it is additionally provided between abutting portion and the second end of fixed structure and passes screw-down torque for offsetting swivel nut
It is handed to two anti-rotation gaskets of fixed structure, the small end face fitting of two anti-rotation gaskets.
Specifically, swivel nut and anti-rotation gasket are set on conduit.
Preferably, the cone angle of the first end circular conical surface of fixed structure is 55 °；The cone of circular conical surface on the inside of the first end of connector
Angle is 60 °.
Preferably, the cone angle of sealed taper pad is 60 °.
The beneficial effects of the present invention are:
A kind of detachable holding tube Hermetical connecting structure of the invention:
Feature easy to disassemble, that pressure bearing and seal performance is excellent is had both, same conduit with fixed structure after assembling for several times, still
It can keep excellent pressure bearing and seal performance.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure: 1, connector, 2, sealed taper pad, 3, fixed structure, 4, anti-rotation gasket, 5, swivel nut, 6, conduit.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
Embodiment 1, as shown in Figure 1:
A kind of detachable holding tube Hermetical connecting structure, gas output end and conduit 6 one for system assembly connection component
The connection at end seals, comprising:
The connector 1 being connected on the gas output end of system assembly connection component；
The detachable fixed structure 3 being tightly connected with 6 side wall of conduit；
Squeeze for connector 1 and fixed structure 3 push structure of sealing.
In this embodiment, one end of connector 1 is directly connect on the gas output end of system assembly connection component, fixed
The inside of structure 3 removably, with 6 side wall of conduit is hermetically assembled, and the outside of fixed structure 3 is also in push structure
Lower squeeze with connector 1 of effect seals, herein under cooperation sealing structure, from the gas output end of system assembly connection component export to
Gas in conduit 6 will not be leaked in the junction of conduit 6 and system assembly connection component；
The sealing carried out between fixed structure 3 and conduit 6 can choose and act on fixed structure 3 for mechanical mechanism and make
Sealing is squeezed between fixed structure 3 and conduit 6, fixed structure 3 is also detached from conduit 6 when losing the effect of power；
Embodiment 2, as shown in Figure 1:
The present embodiment the difference from embodiment 1 is that: fixed structure 3 is sleeved on 6 side wall of conduit, and fixed structure 3 is note
Recall alloy to be made, heat fixed structure 3, fixed structure 3 generates Phase change shrinkage and holds conduit 6 tightly.
Usage mode is and to move to some position on conduit 6 first by 3 sets of fixed structure on conduit 6, heats fixed knot
Structure 3 makes it generate Phase change shrinkage holding conduit 6, reaches the inside of fixed structure 3 and the sealed connection of conduit 6, will lead again later
Pipe 6 is inserted into the inner hole of connector 1, then the outside of structure 3 and the sealing of connector 1 is fixed.When disassembly, by conduit 6 from connector 1
Inner hole in remove, (or cooling of other way) is impregnated at 3 place position of fixed structure in liquid nitrogen, fixed structure 3 is
It is detached from conduit 6.
Embodiment 3, as shown in Figure 1:
The present embodiment and the difference of embodiment 1 or embodiment 2 are: the first end of fixed structure 3 is formed as circular conical surface；It connects
Sealing cooperation is squeezed on the inside of first 1 first end with the first end of fixed structure 3.
Shape on the inside of the shape of the first end of fixed structure 3 and the first end of connector 1 and the cooperation side between them
Formula is to preferably cooperate push structure to the extruding between fixed structure 3 and connector 1, and this extruding can efficiently and effectively
Seal the connection between 3 outside of fixed structure and connector 1.
Embodiment 4, as shown in Figure 1:
The present embodiment and the difference of embodiment 3 are: in the tip inside surface of connector 1 and the first end of fixed structure 3
Between be additionally provided with sealed taper pad 2 for sealing.
At work, push structure propelling extrusion makes the sealed taper pad 2 between connector 1 and fixed structure 3 generate extruding
Deformation, be better achieved connector 1 and 6 connecting portion of conduit couple and sealing function.
Embodiment 5, as shown in Figure 1:
The present embodiment and the difference of embodiment 4 are: push structure includes swivel nut 5, and swivel nut 5 matches company with 1 screw thread of connector
It connects, abutting portion is set on swivel nut 5, abutting portion is used to act on fixed structure 3 toward abutting when 1 direction precession of connector in swivel nut 5
Second end.
When 5 rotation direction 1 retrograde precession of connector of swivel nut, then it pushes fixed structure 3 and the extruding of connector 1 close by abutting portion
Envelope connection；When needing to dismantle, then swivel nut 5 reversely rotates；It is inside far from 1 one end of connector on the preferred swivel nut 5 in abutting portion
The circular protrusion of setting；The second end of fixed structure 3 is preferably smooth face, and preferred its is divided into far from connector in the present embodiment
1 cylindrical section, and the conical surface section close to connector 1.This preferred outer wall of external thread sleeve 5 is six side's faceted pebbles, is twisted convenient for applying regulation to it
Clamp force square.
Embodiment 6, as shown in Figure 1:
The present embodiment and the difference of embodiment 5 are: the first end of swivel nut 5 is internally provided with internal screw thread, the of connector 1
External screw thread is provided on the outside of one end.
Embodiment 7, as shown in Figure 1:
The difference of the present embodiment and embodiment 5 or embodiment 6 is: between abutting portion and the second end of fixed structure 3
It is additionally provided with two anti-rotation gaskets 4 that fixed structure 3 is transferred to for offsetting swivel nut 5 for screw-down torque, two anti-rotation gaskets 4
Small end face fitting.
4 planform of anti-rotation gasket is similar to plain washer (GB/T 97.1-2002), and the external rounded corner in one end is small nose circle
Face, the other end are large round end surface to inner bore chamfering, and two 4 roundlet end faces of anti-rotation gasket fitting assembly, play elimination and turn round when use
Turn power effect.According to test result, fixed structure 3 has preferable anti-axial tensile power performance, but torsional rotation force ability is weaker,
Anti-rotation gasket 4 acts on fixed structure 3 for reducing the twisting resistance generated when swivel nut 5 is tightened.
Embodiment 8, as shown in Figure 1:
The present embodiment and the difference of embodiment 7 are: swivel nut 5 and anti-rotation gasket 4 are set on conduit 6.
When the application assembles, swivel nut 5, anti-rotation gasket 4, fixed structure 3, sealed taper pad 2, which successively cover, is packed into conduit 6, fixed
After structure 3 moves to target position, heating fixed structure 3 makes it generate Phase change shrinkage holding conduit 6, and conduit 6 is inserted into connector 1
Hole, tightening swivel nut 5 makes sealed taper pad 2 between connector 1 and fixed structure 3 generate extrusion deformation, realizes that connector 1 is connect with conduit 6
The connection at position and sealing function.When disassembly, swivel nut 5 is unscrewed, conduit 6 is removed from 1 inner hole of connector, it will be where fixed structure 3
Position is impregnated in liquid nitrogen, and fixed structure 3 and conduit 6 are detached from, and removes fixed structure 3, anti-rotation gasket 4, swivel nut 5.
Embodiment 9:
The present embodiment and the difference of embodiment 3 are: the cone angle of the first end circular conical surface of fixed structure 3 is 55 °；Connector 1
First end on the inside of circular conical surface cone angle be 60 °.
According to the design experiences in this field, reliable conical surface seal design, the cone angle of the mating parts conical surface is answered angled
Difference, differential seat angle are usually the several years.Fixed structure conical surface cone angle design value is 55 °, processing and heating assembly rear cone different parts
Cone angle range is 52 °~56 °；Connector is that machine adds part, 60 ° of deviation very littles of cone angle measured value and design value.According to a large amount of at present
Test result, this by 55 ° of cone angle designs can meet that repetition is detachable and requirement, the benefit of 55 ° of cone angle designs such as sealing are reductions
The variation of different parts cone angle is greatly to the influence of leakproofness after fixed structure assembly.
Embodiment 10:
The present embodiment and the difference of embodiment 4 are: the cone angle of sealed taper pad 2 is 60 °.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and equivalents circle
It is fixed.
Claims (10)
- Gas output end and tube at one end 1. a kind of detachable holding tube Hermetical connecting structure, for system assembly connection component Connection sealing, comprising:The connector being connected on the gas output end of system assembly connection component；The detachable fixed structure being tightly connected with duct wall；Squeeze for connector and fixed structure the push structure of sealing.
- 2. a kind of detachable holding tube Hermetical connecting structure according to claim 1, it is characterised in that: fixed structure is sleeved on Duct wall, and fixed structure is made of memorial alloy, heats fixed structure, fixed structure generates Phase change shrinkage and holds conduit tightly.
- 3. a kind of detachable holding tube Hermetical connecting structure according to claim 1 or 2, it is characterised in that: fixed structure First end is formed as circular conical surface；Sealing cooperation is squeezed on the inside of the first end of connector with the first end of fixed structure.
- 4. a kind of detachable holding tube Hermetical connecting structure according to claim 3, it is characterised in that: in the end of connector The sealed taper pad for sealing is additionally provided between side surface and the first end of fixed structure.
- 5. a kind of detachable holding tube Hermetical connecting structure according to claim 4, it is characterised in that: push structure includes spiral shell Set, swivel nut matchs connection with joint screw thread, setting abutting portion on swivel nut, abutting portion in swivel nut toward being supported when the precession of connector direction Tightly act on the second end of fixed structure.
- 6. a kind of detachable holding tube Hermetical connecting structure according to claim 5, which is characterized in that in the first end of swivel nut Portion is provided with internal screw thread, is provided with external screw thread on the outside of the first end of connector.
- 7. a kind of detachable holding tube Hermetical connecting structure according to claim 5 or 6, which is characterized in that abutting portion with Two anti-turning pads that fixed structure is transferred to for offsetting swivel nut for screw-down torque are additionally provided between the second end of fixed structure Piece, the small end face fitting of two anti-rotation gaskets.
- 8. a kind of detachable holding tube Hermetical connecting structure according to claim 7, it is characterised in that: swivel nut and anti-rotation gasket It is set on conduit.
- 9. a kind of detachable holding tube Hermetical connecting structure according to claim 3, it is characterised in that: the first of fixed structure The cone angle for holding circular conical surface is 55 °；The cone angle of circular conical surface on the inside of the first end of connector is 60 °.
- 10. a kind of detachable holding tube Hermetical connecting structure according to claim 4, it is characterised in that: the cone of sealed taper pad Angle is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326071.3A CN109869549A (en) | 2019-04-23 | 2019-04-23 | A kind of detachable holding tube Hermetical connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326071.3A CN109869549A (en) | 2019-04-23 | 2019-04-23 | A kind of detachable holding tube Hermetical connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109869549A true CN109869549A (en) | 2019-06-11 |
Family
ID=66922967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910326071.3A Pending CN109869549A (en) | 2019-04-23 | 2019-04-23 | A kind of detachable holding tube Hermetical connecting structure |
Country Status (1)
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