CN110230741A - A kind of bellows of the hard seal nipple unit of corrugated stainless steel tubing and the application connector - Google Patents
A kind of bellows of the hard seal nipple unit of corrugated stainless steel tubing and the application connector Download PDFInfo
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- CN110230741A CN110230741A CN201910623727.8A CN201910623727A CN110230741A CN 110230741 A CN110230741 A CN 110230741A CN 201910623727 A CN201910623727 A CN 201910623727A CN 110230741 A CN110230741 A CN 110230741A
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- bellows
- seal nipple
- hard seal
- stainless steel
- steel tubing
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Classifications
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- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0206—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the collar not being integral with the pipe
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- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
- F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
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- 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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/18—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses characterised by the use of additional sealing means
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- 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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/26—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses specially adapted for hoses of metal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Diaphragms And Bellows (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses the bellowss of a kind of hard seal nipple unit of corrugated stainless steel tubing and the application connector, belong to sylphon seal field.Hard seal nipple unit of the invention, including silk and interior Threaded Connector Coupling outside the washer, O-ring, the pedestal that matches that are set on the outside of bellows, O-ring is sheathed on respectively on the outside of two adjacent trough sections that bellows is recessed inwardly, the bottom opposite flank of the outer silk of pedestal and interior Threaded Connector Coupling is respectively arranged with outer screw tap forming head and internal thread conical head, washer is sheathed on the outside of bellows and between outer screw tap forming head and internal thread conical head, and washer bottom both ends are located between two O-rings.Hard seal nipple unit of the invention, not only installs easy to operate, and can effectively improve leakproofness, and can prevent connector from slipping；Bellows of the invention, using above-mentioned hard seal nipple unit, usage safety performance increases.
Description
Technical field
The present invention relates to sylphon seal technical fields, seal and connect firmly more specifically to a kind of corrugated stainless steel tubing
The bellows of head unit and the application connector.
Background technique
Corrugated stainless steel tubing is installed in pipeline system as a kind of flexible pressure-resistant pipe fitting, to compensate pipeline or machine
The effects of mutual displacement of device, equipment connecting pin absorbs vibrational energy, can play vibration damping, noise reduction has flexible, quality
Gently, the multinomial feature such as corrosion-resistant, antifatigue, high-low temperature resistant, the thin-wall corrugated tube being made of stainless steel can be bent,
And the advantages of having metal pipe material concurrently, it is quite suitable for using in the pipelines such as tap water, oil and combustion gas.Corrugated stainless steel tubing connection side
Formula be divided into flanged joint, welding, screwed connection, quick coupling connection etc., small diameter metal hose generally use screw thread and quickly
Connector connection, larger caliber generally use flanged joint and welding.
For conveyance conduit application field, the connection sealing of corrugated stainless steel tubing and other pipe fittings can be required strictly, institute
It is also very high with the processing of inevitable requirement its jointing and equipment precision, otherwise there can be pipeline object in actual use
The security risk of matter leakage.However existing joints structure form multiplicity on the market, but alienation of poor quality is very big, it is general to connect
Head is all made of the structure type of end face rubber seal, in higher temperature environmental condition in use, due to its showing there are aging
As sealing performance cannot ensure very well, and service life is by larger limitation.
About the research of corrugated pipe connector form, have a large amount of patent disclosures, such as Chinese Patent Application No. at present:
2013205622030, the applying date: on September 11st, 2013, invention and created name are as follows: a kind of corrugated tube end connection connector, it should
Application case discloses a kind of corrugated tube end connection connector, which includes joint housing and compression nut, joint housing packet
It including and is equipped with externally threaded first connecting pin, and set internal thread second connection end, compression nut includes bellows insertion end,
And the third connecting pin being connect equipped with external screw thread with second connection end, second connection end inner face and third connecting pin top it
Between be equipped with the snap lock collar that is compacted.This application makees the compression of snap lock collar by joint housing and compression nut
With, and then corrugated tube end is compressed.
For another example Chinese Patent Application No.: 201610077348X, the applying date: on 2 1st, 2016, this application discloses one
Kind stainless steel corrugated flexible hose fast and safely integral joint device is equipped with the first groove, nut in the tip inside of connector
Lateral wall be equipped with and the second groove；Further include be connected to the first groove, the first snap ring in the second groove, by recessed first
It is caught in the first snap ring in slot and the second groove, can be realized the self-locking inside function of nut and connector.Chinese Patent Application No.:
2014104429995, the applying date: on September 2nd, 2014, this application discloses a kind of stainless steel ripple hose couplings to seal firmly
The wave neck for penetrating ripple hose end in nut is arranged in including the split type snap ring that nut can be stopped to deviate from structure,
The nozzle wave ring that corrugated flexible hose is in snap ring ring cavity is shaped to be fastened on the conical ring of the snap ring ring cavity conical surface by beating wave；Outer silk
The fitting end conical surface is inlaid with becket and matches with conical ring.Chinese Patent Application No.: 2016100162378, the applying date:
On January 7th, 2016, this application discloses a kind of corrugated pipe for gas Quick-mounting joint, the snap ring including expandable,
The lateral wall of snap ring is equipped with the first axially distributed inclined surface, and one end opening is equipped with the flange extended to snap ring center position
Portion；When nut screws in connector, nut drives snap ring moving radially, and is connected to flange part on the lateral wall of bellows.
To sum up, the above application case be can yet be regarded as the good hard sealing means of a kind of pair of corrugated stainless steel tubing, but due to stainless
Corrugated steel pipe self structure and material characteristic limit, and the sealing performance of corrugated stainless steel tubing still suffers from larger challenge in practice,
Research for sylphon seal performance is still the hot spot in industry.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome in the prior art, corrugated stainless steel tubing joint sealing performance is not good enough, influences using peace
Full deficiency provides the bellows of a kind of hard seal nipple unit of corrugated stainless steel tubing and the application connector；
A kind of hard seal nipple unit of corrugated stainless steel tubing of the invention, not only installs easy to operate, and can effectively improve
Leakproofness, and can prevent connector from slipping；
A kind of bellows for applying hard seal nipple of the invention, using above-mentioned hard seal nipple unit, safety in utilization
It can increase, be suitable for promoting and applying.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
The hard seal nipple unit of a kind of corrugated stainless steel tubing of the invention, including being set to washer on the outside of bellows, O-shaped
The outer silk of the pedestal enclose, matched and interior Threaded Connector Coupling, O-ring are sheathed on two adjacent trough sections that bellows is recessed inwardly respectively
The bottom opposite flank of outside, the outer silk of pedestal and interior Threaded Connector Coupling is respectively arranged with outer screw tap forming head and internal thread conical head, washer set
On the outside of the bellows and positioned at outer screw tap forming head and internal thread conical head between, and washer bottom both ends positioned at two O-rings it
Between.
It further, further include inside support ring, inside support ring is arranged on the inside of the wave crest section that bellows outwardly protrudes；And
Inside support ring is in the wave crest section between the two neighboring trough section where two O-rings.
Further, inside support ring is the non-close ring body that end is equipped with opening.
Further, the zigzag structure matched is respectively equipped on the both ends relative wall of inside support ring opening.
Further, washer successively includes upper circle portion, centre circle portion and lower circle portion；The width in centre circle portion is less than on its both ends
The width in circle portion and lower circle portion is respectively formed recessed along the extruding being gradually increased far from centre circle portion direction opening in the two sides in centre circle portion
Slot, the extruding groove of two sides is respectively corresponded to be matched with outer screw tap forming head and internal thread conical head.
Further, lower circle portion is not less than the development length in upper circle portion along the length that Bellows Length direction extends, under
The both ends in circle portion are located between two O-rings.
Further, the material of washer uses red copper.
Further, sealing ring is additionally provided between the outer silk of pedestal and the top of interior Threaded Connector Coupling.
Further, outer screw tap forming head has upwardly extended vertical extended segment far from one end of washer, and internal thread conical head is remote
One end from washer is connected with horizontal extension section.
Further, there is a kind of bellows for applying hard seal nipple of the invention hard sealing as described above to connect
Head unit.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result:
(1) a kind of bellows for applying hard seal nipple of the invention uses inside support ring on the inside of the bellows in wave crest
It carries out stablizing support, cooperation is effectively squeezed using washer and O-ring in trough on the outside of the bellows, and two-way cooperation is realized surely
Fixed metal hard-sealing, can effective lift-off seal performance, prevent pipe leakage, extend the service life of bellows, be suitable for pushing away
It is wide to use.
(2) a kind of hard seal nipple unit of corrugated stainless steel tubing of the invention, O-ring are sheathed on bellows respectively and concave
On the outside of sunken two adjacent trough sections, washer be then sheathed on the outside of bellows and be located at outer screw tap forming head and internal thread conical head it
Between, original state lower gasket makes it be located in the upper center of bellows crest location, outer screw tap due to the effect of two sides O-ring
Washer is plastically deformed when forming head and internal thread conical head mutual extrusion, and both ends, which respectively correspond, is caught in two sides O-ring and intermediate wave
In gap between peak, make on the outside of bellows and junction portion form hard sealing, enhance the leakproofness to pipeline, service life and
Usage safety performance is all significantly improved promotion.
(3) the hard seal nipple unit of a kind of corrugated stainless steel tubing of the invention, washer be squeezed plastic deformation after form arc
Shape is held tightly in the wave crest of bellows outer ring, keeps bellows not easily to fall off by axial force rear joint part in use, and
Washer not only seals but also plays snap ring, and overall structure part is less, installs relatively simple.
(4) the hard seal nipple unit of a kind of corrugated stainless steel tubing of the invention, inside support ring are that end is equipped with the non-of opening
Ring body is closed, the zigzag structure matched is respectively equipped on the both ends relative wall of inside support ring opening, when inside support ring
It opens when restPosing, the engagement cooperation of opening both ends is held out against, and is capable of the stability of effective guarantee inside support ring position and accurate
Property, it is fitted tightly over inside support ring on bellows wave crest section inner wall, is not in that forced contraction deforms again at ring body both ends, lead
The case where causing inside support ring to loosen in bellows wave crest section, inner support strength and stability of the effective guarantee to bellows.
Detailed description of the invention
Fig. 1 is a kind of original state structural schematic diagram of the hard seal nipple unit of corrugated stainless steel tubing of the invention；
Fig. 2 is the partial enlargement structural representation in Fig. 1 at A；
Fig. 3 is a kind of tightening state structural schematic diagram of the hard seal nipple unit of corrugated stainless steel tubing of the invention；
Fig. 4 is the partial enlargement structural representation in Fig. 3 at B；
Fig. 5 is the structural schematic diagram of inside support ring in the present invention；
Fig. 6 is the structural schematic diagram of inside support ring installation unit in the present invention；
Fig. 7 is the structural schematic diagram of bellows in the present invention.
Label declaration in schematic diagram:
100, bellows；110, clad；120, O-ring；130, sealing ring；140, teflon layer；150, composite web glue
Layer；
200, the outer silk of pedestal；210, outer screw tap forming head；220, vertical extended segment；
300, interior Threaded Connector Coupling；310, internal thread conical head；320, horizontal extension section；
400, washer；410, upper circle portion；420, centre circle portion；430, lower circle portion；440, groove is squeezed；
500, inside support ring；600, outer fixed cylinder；610, interior retracting cylinder；620, enlarged portion；630, notch.
Specific embodiment
To further appreciate that the contents of the present invention, in conjunction with attached drawing, the present invention is described in detail.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
The present invention will be further described with reference to the examples below.
Embodiment 1
As shown in Figures 1 to 7, the hard seal nipple unit of a kind of corrugated stainless steel tubing of the present embodiment, including it is set to wave
The washer 400 in 100 outside of line pipe, O-ring 120, the outer silk 200 of pedestal and interior Threaded Connector Coupling 300 matched, wherein O-ring 120 divides
It is not sheathed on the outside of two adjacent trough sections that bellows 100 is recessed inwardly, the bottom of pedestal outer silk 200 and interior Threaded Connector Coupling 300
Portion opposite flank is respectively arranged with outer screw tap forming head 210 and internal thread conical head 310, and washer 400 is then sheathed on 100 outside of bellows
And between outer screw tap forming head 210 and internal thread conical head 310, and 400 bottom both ends of washer are located between two O-rings 120.
The outer silk 200 of pedestal and interior Threaded Connector Coupling 300 are the structure type generally taken in the hard seal nipple of bellows 100 in the present embodiment,
It screws the hard sealing of realization by cooperation, specific structure and belongs to routine techniques in industry with the use of principle, herein not
This is repeated again.Sealing ring 130, wave are additionally provided between the outer silk 200 of pedestal and the top of interior Threaded Connector Coupling 300 in the present embodiment
Clad 110 is additionally provided on the outside of line pipe 100.
As shown in Fig. 2, the present embodiment China and foreign countries screw tap forming head 210 and internal thread conical head 310 are located at pedestal 200 He of outer silk
The bottom of interior Threaded Connector Coupling 300 and the two Relative distribution are gradually reduced along close to its area of section of the direction of washer 400, and its end
Portion is smooth arc end face, and outer screw tap forming head 210 has upwardly extended vertical extended segment 220, internal thread far from one end of washer 400
Conical head 310 is connected with horizontal extension section 320 far from one end of washer 400.Correspondingly, washer 400 successively includes upper circle portion
410, centre circle portion 420 and lower circle portion 430；Upper circle portion 410 includes successively downward vertical section and converging transition, until with straight down
Centre circle portion 420 be connected, lower circle portion 430 then includes successively downward divergent segment and vertical section, divergent segment and 420 phase of centre circle portion
Even, the width in centre circle portion 420 is significantly less than the width in circle portion 410 and lower circle portion 430 on its both ends, thus in centre circle portion 420
Two sides are respectively formed along the extruding groove 440 being gradually increased far from 420 direction of centre circle portion opening, and lower circle portion 430 is along bellows 100
The length that length direction extends is not less than the development length in upper circle portion 410, the both ends in lower circle portion 430 be located at two O-rings 120 it
Between.The extruding groove 440 of two sides is respectively corresponded to be matched with outer screw tap forming head 210 and internal thread conical head 310, so that the outer silk of pedestal
200 and interior Threaded Connector Coupling 300 is opposite when screwing extrusion fit, opposite 310 mutual extrusion of outer screw tap forming head 210 and internal thread conical head
Into squeezing in groove 440, original state lower gasket 400 makes it be located in 100 wave of bellows due to the effect of two sides O-ring 120
Washer 400 is plastically deformed when the upper center of peak position, outer screw tap forming head 210 and internal thread 310 mutual extrusion of conical head, under
The both ends deformation in circle portion 430 is pressed down against bellows 100, and both ends respectively correspond be caught in two sides O-ring 120 and intermediate peak it
Between gap in, as shown in Figure 3 and Figure 4, the outside of bellows 100 and junction portion is made to form hard sealing, lower circle portion 430 forms arc
Shape is held tightly in the wave crest of 100 outer ring of bellows, and bellows 100 is made to be not easy to take off by axial force rear joint part in use
It falls, and washer 400 not only seals but also plays snap ring, overall structure part is less, installs relatively simple.Specifically in this reality
Red copper can be used in the material for applying a middle washer 400, can be plastically deformed under squeezing action.
The length in lower circle portion 430 is not less than the development length in upper circle portion 410 in the present embodiment, can sufficiently ensure lower circle portion
430 both ends stress deformations are caught between two sides O-ring 120, close to hold tightly in 100 outer ring of bellows, are enhanced to the close of pipeline
Feng Xing.Vertical extended segment 220 is equipped with above outer screw tap forming head 210, the vertical extended segment 220 extend after certain altitude with top
Horizontal segment is connected, which is to be in close contact with the top planes in upper circle portion 410, and upper circle portion 410 extends vertically
The height of section is not less than the height of the vertical extended segment 220 in outer 210 top of screw tap forming head, when silk 200 outside pedestal and interior Threaded Connector Coupling 300
When mutually screwing, between vertical section one end correspondence in upper circle portion 410 is caught between vertical extended segment 220 and outer screw tap forming head 210
In gap, the vertical section other end in upper circle portion 410 then extends along 320 direction of horizontal extension section of internal thread conical head 310, helps to protect
Hinder washer 400 to the sufficiently sealed property outside pedestal between silk 200 and interior Threaded Connector Coupling 300.
A kind of bellows for applying hard seal nipple of the present embodiment, it is close using the hard seal nipple unit of the present embodiment
Envelope effect is good and connector is not easily to fall off, and service life and usage safety performance are all significantly improved promotion.And the present embodiment
Bellows, be combined using metal material and other various materials, there is high pressure resistant, high temperature resistant outstanding, external force resistance etc.
Performance, and have both the performances such as metal bellows Wear-resistant corrosion-resistant, service performance is obviously improved, it is specific as shown in fig. 7, comprises
The bellows 100 of stainless steel material, is substrate with bellows 100, and successively cladding is provided with Teflon on 100 outer wall of bellows
Layer 140 and composite web glue-line 150, composite web glue-line 150 include the canvas stratum reticulare being interweaved and layer of silica gel, and canvas stratum reticulare is by sail
Cloth weaves.Layer of silica gel is evenly applied to 140 outer surface of teflon layer, i.e. layer of silica gel is evenly applied to teflon layer 140
On outside wave crest and trough face, and canvas stratum reticulare is then attached on the wave crest face of teflon layer 140.First in ripple when actual processing
Uniformly-coating has one layer of teflon layer 140 on 100 outer wall of pipe, then in 140 outer application liquid-state silicon gel of teflon layer, liquid-state silicon
Glue has cladding in the Wave crest and wave trough Duan Jun of teflon layer 140, is then knitted to form sail with canvas silk thread in 140 outside of teflon layer
Cloth stratum reticulare, canvas stratum reticulare are attached on the wave crest outer wall outstanding of teflon layer 140, are then carried out at hot setting to pipeline surface
Reason, liquid-state silicon gel solidifies and composite web glue-line 150 is integrally formed in bulging from the areola of canvas stratum reticulare, and composite web glue-line 150 is whole
It shows consideration on the wave crest face for investing teflon layer 140.Clad 110 is additionally provided in the present embodiment on the outside of bellows 100, i.e., compound
Clad 110 is additionally provided on the outside of net glue-line 150, the position that hard seal nipple unit is arranged in 100 end of bellows is usually by wave
After the clad 110 and composite web glue-line 150 of 100 end of line pipe first strip, exposes internal corrugated tube body and installed again.
The present embodiment is compound in the outside of substrate bellows 100 successively compound teflon layer 140 and composite web glue-line 150
The form that net glue-line 150 is interweaved using canvas stratum reticulare and layer of silica gel, the canvas net of braiding depend on carrying carrier as silica gel
So that the two is interweaved and form whole mixed layer, facilitates the dependency of effectively enhancing canvas stratum reticulare and bellows 100, sufficiently guarantee wave
The intensity of line pipe 100.The pipe thickness H of bellows 100 is no more than 0.2mm, the corrugation density on bellows 100 in the present embodiment
For 2.8-3mm, and compound other materials layer then control it is as follows: the thickness h 1 of teflon layer 140 is 10-12um, composite web glue
The thickness h 2 of layer 150 is 25-40um (i.e. composite web glue-line 150 is coated on the thickness on the top wave crest face of teflon layer 140),
It is between the thickness h 1 of teflon layer 140 and the thickness H of bellows 100 simultaneouslyWherein k is (0.7-1.2)；It is compound
It is between the thickness h 2 of net glue-line 150 and the thickness H of bellows 100Wherein a is (0.5-2)；Pass through
Accurate dimension control to substrate layer and composite layer, realizes the larger promotion of 100 performance of bellows.
Specifically the pipe thickness H of bellows 100 is 0.2mm in the present embodiment, and the corrugation density of bellows 100 is
2.8mm, the thickness h 1 of plating teflon layer 140 are 10um, and the thickness h 2 of composite web glue-line 150 is 27um, and teflon layer is electroplated
140 thicknessThe thickness of composite web glue-line 150The present embodiment passes through to bellows
The mutual cooperation of 100 pipe thicknesses and corrugation density makes tube wall more Bao Gengmi, and substrate hardness can be effectively reduced, and enhancing material is soft
Toughness, while remaining the proper properties such as stainless steel pressure resistance Wear-resistant, high-temperature resistant.The flexible reinforced of tube wall has convenient for bellows 100
Effect bending and flexible Application, solve the problems, such as current bellows 100 due to pliability limited cannot too long setting, it is basic herein
On, the high-low temperature resistant of bellows 100, wear-resisting, corrosion resistance etc. are further enhanced by the way that teflon layer 140 is electroplated.The present embodiment
The stretching resistance of the used canvas of canvas stratum reticulare used is not less than 1200N, and intensity is higher, using canvas silk thread in teflon layer
140 outsides directly weave networking, form effective powerful protection net cover, and silica gel is cooperated to bloat the silica gel of the inside and outside intertexture to be formed
Layer can not only effectively enhance 100 intensity of bellows, and the netted canvas of braiding, which is more advantageous to, improves 100 surface feel of bellows, makes
It is suitable for that feeling is better that it, which is touched soft or hard, improves operating experience.
The bellows 100 of row industry routine has the diversified forms such as metal tube, rubber tube or multilayer pipe at present, wherein metal tube
Though intensity is big but flexibility is poor, duct length is extremely restricted when use, must use multistage when pipeline being arranged over long distances
Pipeline splicing composition, is also biggish problem for the guarantee of leakproofness when not only construction is troublesome and pipeline splices, and current
Connecting method mostly uses a plurality of pipeline to be welded, and can form welding slag inside pipeline, it is defeated that influence pipeline is easy in long-time service
Send quality；Though rubber tube has certain flexibility convenient for bending, the performances such as pressure-resistant Wear-resistant corrosion-resistant do not adapt to complicated
Use environment, the interior also hose construction mutually compound with rubber tube of various metals bellows 100 of industry, but rubber tube are only used as outer
Layer protection pipe sleeve, it is difficult to fundamentally improve the flexible limitation of metal bellows 100, duct length nevertheless suffers from larger limitation,
And multistage rubber tube is difficult to connect using mechanical structure in splicing, mostly uses clip form to fasten, causes at tie point easily
There is leakage problem, causes various problems and risk to production practices.The present embodiment is then by 100 thickness of bellows and ripple
The control of density effectively enhances the flexibility of bellows 100, and when use can make 100 length of bellows unrestricted, simultaneously
According to substrate self-characteristic by the accurate compound of multi-layer material, keep bellows 100 well flexible simultaneously in holding, it is strong
Degree obtain effective guarantee, even if need between multistage pipeline splice when can also be directly by the way that spiral shell be arranged inside bellows 100
Line connection, makes to screw between different pipelines, not only convenient and flexible operation, and effective guarantee bellows 100 connect it is close
Feng Xing, prevents leakage problem, and actual use performance is obviously improved.The composite metal corrugated pipe 100 of the present embodiment is through practicing
Verifying can not revealed in 45 ° of swing amplitude 15,000 times guarantees repeatedly under the conditions of one kilogram of vertical weight, and service performance is safe and reliable.
Embodiment 2
A kind of hard seal nipple unit of corrugated stainless steel tubing of the present embodiment, substantially with embodiment 1, further, this
It further include inside support ring 500 in embodiment, inside support ring 500 is arranged on the inside of the wave crest section that bellows 100 outwardly protrudes；And it is interior
Support ring 500 is located in the wave crest section between the two neighboring trough section at two O-rings, 120 place.Specifically, two O-rings
120 are fastened in respectively in first and second inside trough sections of 100 end of bellows, and inside support ring 500 is then O-shaped positioned at two
In wave crest section between circle 120.Inside support ring 500 is metal material ring such as stainless steel etc., is supported on 100 inside of bellows, when
When 310 mutual extrusion washer 400 of outer screw tap forming head 210 and internal thread conical head, washer 400 occur plastic deformation and inwardly extruding in
Between wave crest section, and inside support ring 500 just be located at the wave crest section in provide inside effectively support, mutual extrusion effect make bellows
100 outsides and junction portion form hard sealing, and use metal hard-sealing, long service life and high temperature resistant.In in the present embodiment
The setting effective guarantee of the support ring 500 sealing stability and intensity of the hard sealing position of bellows 100, prevents tube body from becoming
The defects of shape is revealed, safety in utilization obtains effective guarantee.
Inside support ring 500 is the non-close ring body that end is equipped with opening in the present embodiment, so that inside support ring 500 has one
Fixed elasticity, internal diameter, which can be shunk, to be extended out so as to be fitted in the wave crest section of 100 inside of bellows, such as Fig. 5 institute
Show, figure a is the contraction state before inside support ring 500 is installed, and ring body opening both ends are in the spiral status being staggered front to back, thus in making
Support ring 500 can extend into 100 inside of bellows and reach at corresponding crest location, then strut inside support ring 500 outer
Expansion opens it in 100 wave crest section of bellows and the ring body front at the both ends that are open is opposite, and inside support ring 500 restores normal at this time
State is simultaneously bonded with 100 wave crest section inner wall of bellows completely just, to provide effective support for 100 inner wall of bellows, is ensured
Hard sealing effect.It is matched further, in this embodiment being respectively equipped on the both ends relative wall that inside support ring 500 is open
Such structure is arranged when the opening of inside support ring 500 restPoses in zigzag structure, and the engagement cooperation of opening both ends is held out against,
It is capable of the stability and accuracy of 500 position of effective guarantee inside support ring, inside support ring 500 is made to be fitted tightly over bellows 100
On wave crest section inner wall, is not in that forced contraction deforms again at ring body both ends, causes inside support ring 500 in 100 wave crest of bellows
The case where being loosened in section, inner support strength and stability of the effective guarantee to bellows 100.
The installation of inside support ring 500 can be realized using installation unit in the present embodiment, as shown in fig. 6, the present embodiment
Installation unit include outer fixed cylinder 600, the side of outer fixed cylinder 600 offers the notch 630 of bar shaped along its length so that
There is outer fixed cylinder 600 certain extending out to inside contract elasticity, and activity cooperation is equipped with interior retracting cylinder 610 in the inner cavity of outer fixed cylinder 600,
Interior retracting cylinder 610 can be movable along its length in outer fixed cylinder 600, and the end of interior retracting cylinder 610 is equipped with gradually to be expanded outward
The enlarged portion 620 opened, enlarged portion 620 are gradually increased along the direction area of section far from outer fixed cylinder 600, and enlarged portion 620
Outside wall surface is the curved wall to smoothly transit with interior 610 wall surface of retracting cylinder, and the outer diameter of enlarged portion 620 is greater than outer fixed cylinder 600
Intracavity diameter, inside support ring 500 are sheathed on the end of outer fixed cylinder 600, and outer fixed cylinder 600 and inside support ring 500 are equal before installing
In contraction state, outer fixed cylinder 600 and inside support ring 500 are protruded into bellows 100, inside support ring 500 is made to reach ripple
At the corresponding crest location in 100 inside of pipe, then twitching interior retracting cylinder 610 outward makes its end as shown in arrow direction in Fig. 6
The enlarged portion 620 in portion moves closer to outer fixed cylinder 600, since the outer diameter of enlarged portion 620 is larger when it reaches outer fixed cylinder
When 600 cavity position, the outer generation of fixed cylinder 600 will be made to extend out, while the generation of pair of interior support ring 500 extends out, and makes inside support ring 500
It opens fitting comprehensively to be fastened in 100 inside wave crest of bellows, and the both ends that are open of inside support ring 500 are meshed cooperation, sufficiently guarantor
The structural stability for hindering inside support ring 500 after inside support ring 500 is installed, interior retracting cylinder 610 is inwardly resetted, makes to expand
Portion 620 is detached from outer 600 inner cavity position of fixed cylinder, then integrally takes out installation unit.It can be real using the installation unit
The Fast Installation of existing pair of interior support ring 500, it is easy to operate.
The hard seal nipple unit of the present embodiment is stablized in 100 inside wave crest of bellows using inside support ring 500
Support, cooperation is effectively squeezed using washer 400 and O-ring 120 in 100 outside trough of bellows, and two-way cooperation is realized
Stable metal hard-sealing, can effective lift-off seal performance, prevent pipe leakage, extend the service life of bellows 100, fit
Preferably promote the use of.
Embodiment 3
A kind of bellows for applying hard seal nipple of the present embodiment, substantially same above-described embodiment, the difference is that this reality
It applies and is additionally provided with sensor fibre film in example on the outside of bellows 100, not only can effectively detect whether pipeline is damaged, and inspection can be transmitted
Signal is surveyed, ensures to the real-time monitoring of pipeline quality and transport status, has further ensured the security performance that pipeline uses.
The pipe thickness H of corrugated stainless steel tubing 100 is 0.2mm in the present embodiment, and the corrugation density of bellows 100 is
3mm；The thickness h 1 of teflon layer 140 is 11um, and the thickness h 2 of composite web glue-line 150 is 34um, and the thickness of teflon layer 140 is electroplated
DegreeThe thickness of composite web glue-line 150
Embodiment 4
A kind of bellows for applying hard seal nipple of the present embodiment, substantially same above-described embodiment, the difference is that this reality
The pipe thickness H for applying corrugated stainless steel tubing 100 in example is 0.1mm, and the corrugation density of bellows 100 is 2.9mm；Teflon layer
140 thickness h 1 is 12um, and the thickness h 2 of composite web glue-line 150 is 25um, and the thickness of teflon layer 140 is electroplatedThe thickness of composite web glue-line 150
Embodiment 5
A kind of bellows for applying hard seal nipple of the present embodiment, substantially same above-described embodiment, the difference is that this reality
The pipe thickness H for applying corrugated stainless steel tubing 100 in example is 0.1mm, and the corrugation density of bellows 100 is 3mm；Teflon layer
140 thickness h 1 is 10um, and the thickness h 2 of composite web glue-line 150 is 28um, and the thickness of teflon layer 140 is electroplated
The thickness of composite web glue-line 150
Embodiment 6
A kind of bellows for applying hard seal nipple of the present embodiment, substantially same above-described embodiment, the difference is that this reality
The pipe thickness H for applying corrugated stainless steel tubing 100 in example is 0.2mm, and the corrugation density of bellows 100 is 3mm；Teflon layer
140 thickness h 1 is 12um, and the thickness h 2 of composite web glue-line 150 is 40um, and the thickness of teflon layer 140 is electroplatedThe thickness of composite web glue-line 150
Embodiment 7
A kind of bellows for applying hard seal nipple of the present embodiment, substantially same above-described embodiment, the difference is that this reality
The pipe thickness H for applying corrugated stainless steel tubing 100 in example is 0.1mm, and the corrugation density of bellows 100 is 3mm；Teflon layer
140 thickness h 1 is 11um, and the thickness h 2 of composite web glue-line 150 is 30um, and the thickness of teflon layer 140 is electroplatedThe thickness of composite web glue-line 150
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (10)
1. a kind of hard seal nipple unit of corrugated stainless steel tubing, it is characterised in that: including the pad being set on the outside of bellows (100)
Circle (400), O-ring (120), the outer silk (200) of pedestal matched and interior Threaded Connector Coupling (300), O-ring (120) are sheathed on respectively
On the outside of two adjacent trough sections that bellows (100) is recessed inwardly, the bottom of pedestal outer silk (200) and interior Threaded Connector Coupling (300)
Opposite flank is respectively arranged with outer screw tap forming head (210) and internal thread conical head (310), and washer (400) is sheathed on bellows (100)
Outside and between outer screw tap forming head (210) and internal thread conical head (310), and washer (400) bottom both ends be located at two it is O-shaped
It encloses between (120).
2. the hard seal nipple unit of a kind of corrugated stainless steel tubing according to claim 1, it is characterised in that: further include interior branch
Pushing out ring (500), inside support ring (500) are arranged on the inside of the wave crest section that bellows (100) outwardly protrudes；And inside support ring (500)
In wave crest section between the two neighboring trough section where two O-rings (120).
3. the hard seal nipple unit of a kind of corrugated stainless steel tubing according to claim 2, it is characterised in that: inside support ring
(500) the non-close ring body of opening is equipped with for end.
4. the hard seal nipple unit of a kind of corrugated stainless steel tubing according to claim 3, it is characterised in that: inside support ring
(500) zigzag structure matched is respectively equipped on the both ends relative wall being open.
5. the hard seal nipple unit of a kind of corrugated stainless steel tubing according to claim 1, it is characterised in that: washer (400)
It successively include upper circle portion (410), centre circle portion (420) and lower circle portion (430)；The width in centre circle portion (420), which is less than on its both ends, to be enclosed
The width in portion (410) and lower circle portion (430) is respectively formed in the two sides of centre circle portion (420) and opens along far from centre circle portion (420) direction
The extruding groove (440) that mouth is gradually increased, the extruding groove (440) of two sides respectively correspond and outer screw tap forming head (210) and internal thread
Conical head (310) matches.
6. the hard seal nipple unit of a kind of corrugated stainless steel tubing according to claim 5, it is characterised in that: lower circle portion
(430) it is not less than the development length of upper circle portion (410) along the length that bellows (100) length direction extends, lower circle portion (430)
Both ends are located between two O-rings (120).
7. the hard seal nipple unit of a kind of corrugated stainless steel tubing according to claim 1, it is characterised in that: washer (400)
Material use red copper.
8. the hard seal nipple unit of a kind of corrugated stainless steel tubing according to claim 1-7, it is characterised in that: bottom
Sealing ring (130) are additionally provided between the outer silk (200) of seat and the top of interior Threaded Connector Coupling (300).
9. the hard seal nipple unit of a kind of corrugated stainless steel tubing according to claim 1 or 5, it is characterised in that: outer screw tap
Forming head (210) has upwardly extended vertical extended segment (220) far from the one end of washer (400), and internal thread conical head (310) is far from washer
(400) one end is connected with horizontal extension section (320).
10. a kind of bellows for applying hard seal nipple, it is characterised in that: have as claim 1-9 is described in any item hard
Seal nipple unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910623727.8A CN110230741B (en) | 2019-07-11 | 2019-07-11 | Stainless steel corrugated pipe hard sealing joint unit and corrugated pipe applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910623727.8A CN110230741B (en) | 2019-07-11 | 2019-07-11 | Stainless steel corrugated pipe hard sealing joint unit and corrugated pipe applying same |
Publications (2)
| Publication Number | Publication Date |
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| CN110230741A true CN110230741A (en) | 2019-09-13 |
| CN110230741B CN110230741B (en) | 2023-08-22 |
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| CN201910623727.8A Active CN110230741B (en) | 2019-07-11 | 2019-07-11 | Stainless steel corrugated pipe hard sealing joint unit and corrugated pipe applying same |
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| Country | Link |
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| CN (1) | CN110230741B (en) |
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| CN113503412A (en) * | 2021-07-15 | 2021-10-15 | 芜湖泰和管业股份有限公司 | Corrugated pipe quick installation connector and corrugated pipe applying same |
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| Publication number | Publication date |
|---|---|
| CN110230741B (en) | 2023-08-22 |
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