CN106402545A - Axial buckling and pressing connector - Google Patents
Axial buckling and pressing connector Download PDFInfo
- Publication number
- CN106402545A CN106402545A CN201610851487.3A CN201610851487A CN106402545A CN 106402545 A CN106402545 A CN 106402545A CN 201610851487 A CN201610851487 A CN 201610851487A CN 106402545 A CN106402545 A CN 106402545A
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- Prior art keywords
- ring
- joint
- pipe body
- pressure ring
- casing play
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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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/1012—Flanged joints
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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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/1017—Joints with sleeve or socket
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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
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The invention relates to an axial buckling and pressing connector. The axial buckling and pressing connector comprises an intra-pipe glue layer, a framework layer and an extra-pipe glue layer which are all of cylindrical structures and are sequentially connected in a sleeved manner from inside to outside to form a pipe body; the intra-pipe glue layer and the framework layer extend out of the pipe body from the same end, and the framework layer is made of flexible materials; the buckling and pressing connector further comprises an outer pressing ring and an inner pressing ring, the front end of the extending-out end of the intra-pipe glue layer is sleeved with the outer pressing ring, and the back section of the framework layer is sleeved with the inner pressing ring; and the outer pressing ring, the front section of the framework layer, the inner pressing ring and a piston flange are sequentially pressed in a butting manner from the extending-out end to the other end in the axial direction of the pipe body and are integrally molded through vulcanization. Compared with a flexible connecting pipe with the same length, a connecting structure adopting the connector and the pipe body is characterized in that the connector size is small, the flexibility section of the pipe body is long, the structure is simple, installation is flexible, and the connector and the pipe body are more firmly combined through vulcanization integrated molding. The technical problems that a traditional axial buckling and pressing connector is low in connecting strength, poor in pulling and dropping resistance and free of the self-locking function are solved.
Description
Technical field
The present invention relates to the axial buckle press joint structure of a kind of axial buckle press joint, more particularly to flexibility connection pipe.Belong to
Conduit coupling technical field, is mainly used in the pipe-line system of the working medias such as all kinds of oil, water.
Background technology
At present, in the industrial circles such as oil, chemical industry, ship, lay the pipeline using oil, water etc. as working media in a large number
System, pipeline in equipment operation, expand with heat and contract with cold, in the presence of the factor such as vibratory impulse, corresponding power, vibration and position can be produced
Move.Therefore in pipe-line system, adopt rubber flexible connecting pipe in a large number, play vibration and noise reducing, shock resistance, bit shift compensation and transmission and be situated between
The effect of matter.When pipeline latus rectum larger (more than DN32), general connection metal tubes and rubber in the form of bump joint
Flexibility connection pipe, in order to ensure that the security reliability of pipe-line system, the bump joint structure of rubber flexible connecting pipe and assembly form rise
Important function.
In the conventional technology, rubber flexible connecting pipe bump joint frequently with attaching type (see Fig. 1), flange live flange form (see
Fig. 2), the structure such as mounting flange formula (see Fig. 3), several structures respectively have advantage but have deficiency, analysis in table 1.
Table 1
It can be seen that, several joint designs cut both ways, and existing product can not take into account stable and reliable for performance, easy for installation, light weight
The demand using with little space mounting.
So needing a kind of joint badly, solving that traditional jointing bonding strength is low, anti-pulling-and-doffing performance is poor, there is no the skill of auto-lock function
Art problem.
Content of the invention
It is an object of the invention to provide a kind of axial buckle press joint, to solve that traditional jointing bonding strength is low, resistance to plucking takes off
Property technical problem that is poor, not having auto-lock function.
The present invention adopts following technical scheme：
A kind of axial buckle press joint, including lap joint flange (1), flexible pipe body (10)；Described lap joint flange (1) is ring flange
Structure, described flexible pipe body (10) includes inner glue layer (2), casing play (3), outer glue-line (4) from inside to outside successively, and described withholding connects
Head be located at described flexible pipe body (10) termination it is characterised in that：
Described buckle press joint also includes outer press ring (5), inner pressure ring (6), and described outer press ring (5), inner pressure ring (6) are annular sleeve
Structure, is enclosed within the inner glue layer (2) of described flexible pipe body (10) end outside described outer press ring (5) outward, described inner glue layer (2) end
It is provided with outward the boss (21) of a ring shape, described outer press ring (5) inner ring end is provided with corresponding ring-shaped depression (51),
Described boss (21) embeds the sealing structure forming joint and pumped (conveying) medium in pipe in described depression (51)；Described outer press ring (5)
Turning down backward along its outer ring makes its section L-shaped, and routing up part is tubular pressure ring (52)；
Outwards turnover makes the L-type that its section is in handstand, described inner pressure ring (6) set to described inner pressure ring (6) its end face of front end edge
It is cylindrical jacket (62) in described casing play (3) part outward, described cylindrical jacket (62) rear end is connect with described outer glue-line (4)
Contacting surface becomes inclined-plane to offset, and the contact surface of described outer glue-line (4) is located at the contact surface with described cylindrical jacket (62) on this inclined-plane
Constitute and the sealing structure outside body；The part that described inner pressure ring (6) is turned up is annular disk (61), before described casing play (3)
End outwards turns down anti-package residence backward and states annular disk (61) front end face and side wall, and described annular disk (61) embeds described outer press ring
(5) L-shaped is wrapped, and the front end face of described annular disk (61) offsets and accommodates described bone with the rear end face of described outer press ring (5)
Rack-layer (3), annular disk (61) described in described tubular pressure ring (52) overcoat simultaneously clamps described casing play (3) front end, described tubular pressure
The height of ring (52) is less than the thickness of described annular disk (61), and described lap joint flange (1) is socketed on described cylindrical jacket (62)
And offset with the rear end face of described annular disk (61), the inner glue layer (2) of described flexible pipe body (10), casing play (3), outer glue-line
(4), outer press ring (5), inner pressure ring (6) are integrally formed through sulfuration.
Described outer press ring (5), inner pressure ring (6), lap joint flange (1) are made of metal materials.
Described outer press ring (5), the contact surface of inner pressure ring (6) are provided with the waveform being mutually twisted or jagged teeth
(7) occlusion compresses described casing play (3).
Described flexible pipe body inner glue layer (2), outer glue-line (4) are quality of rubber materials, and described casing play (3) adopts impregnation aramid fiber curtain
Line makes, and described flexible pipe body (10) is integrally formed through sulfuration；Described outer press ring (5), inner pressure ring (6) contact surface gluing.
The deflection angle that turns up of described inner pressure ring (6) is arc transition, and described outer press ring (5) is to should circular arc setting camber line
Transition.
Advantages of the present invention is as follows：
1. present invention axial direction buckle press joint structure digs anti-package structure by casing play 3, and the conventional radial form of withholding is turned
It is changed to and axially withholds, both withhold size quite, that is, on the premise of ensureing strength of joint, anti-pulling-and-doffing performance and reliability, save
Axial space size, compared with the adapter of the common flex of equal length, body flexible section is longer, vibration shock isolation performance is more excellent.
This joint and body more strong bonded are made using sulfuration integrated forming technique, enhance the intensity of joint, anti-pulling-and-doffing performance and
Security reliability.Present invention axial direction buckle press joint structure is adopted to achieve strong with the good joint of little bump joint size acquisition
Degree, anti-pulling-and-doffing performance, sealing and reliability；
2., after present invention axial direction buckle press joint is installed, it is bolted, joint each several part clamping, the structure of inside and outside pressure ring
Design and the wavy or angled laciniation being matched due to design processing, after casing play 3 is compressed, inside and outside
Pressure ring pressing locking can achieve auto-lock function, with the increase of pipe in-vivo medium pressure, acts on pressure force on joint casing play 3
Also accordingly increase, strengthen auto-lock function further, reach the preferable mechanical state of joint design；Auto-lock function under elevated pressure conditions
Advantage becomes apparent from, further reinforced joint intensity and reliability.Ensure that its damping, impact resistance and its reliability.
3. the flexibility connection pipe sealing surface of present invention axial direction buckle press joint is metal joint rigid seal, non-aging, can be real
Now repeatedly installing/dismounting, installation accuracy require low, reliability high, connection sealing can be effectively ensured from suitable seal
Property；Compare traditional flange to live the sealing surface of flanged fitting structure, it adopts the sealing surface of rubber turnup structure, easy creep, easily
Aging, repeatedly install and use and easily cause that rubber face is destroyed, installation accuracy has high demands, thus being easily caused seal failure.
4. present invention axial direction buckle press joint structure is simple, easily manufactured, and cooperation lap joint flange rotates freely can be in little sky
Between realize flexibly installing.
5. flexibility connection pipe latus rectum DN32 can be reached using axial buckle press joint structure and its sulfuration integrated forming technique
No damage bearing 25～20MPa burst pressure joint in the range of～DN100, in the range of latus rectum DN125～DN250, bearing 15
～12MPa burst pressure joint no damages；Under 1.33 times of operating pressures, pulsating fatigue reaches No. 400,000 joints and no damages.
Brief description：
Fig. 1 is the attaching type structural representation of conventional art；
Fig. 2 is the flanged fitting structural representation of conventional art；
Fig. 3 is the mounting flange formula joint design schematic diagram of conventional art；
Fig. 4 is the schematic diagram of cross section structure of the present invention；
Fig. 5 is the schematic diagram of the present invention and pipeline joint structure；
Fig. 6 is outer press ring structural representation of the present invention；
Fig. 7 is inner pressure ring structural representation of the present invention；
Fig. 8 is lap joint flange structural representation of the present invention；
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described further.
Following examples are only, for clear, example of the present invention is described, and the not limit to embodiments of the present invention
Fixed.For those of ordinary skill in the field, other multi-forms can also be made on the basis of the following description
Change or variation, and these belong to the spiritual obvious change drawn of the present invention or change the protection still in the present invention
Among scope.
Embodiment 1
Referring to shown in Fig. 4-8, a kind of axial buckle press joint, including lap joint flange 1, flexible pipe body 10；Described lap joint flange 1
For flange plate structure, described flexible pipe body 10 includes inner glue layer 2, casing play 3, outer glue-line 4 from inside to outside successively, and described withholding connects
Head is located at the termination of described flexible pipe body 10,
Described buckle press joint also includes outer press ring 5, inner pressure ring 6, and described outer press ring 5, inner pressure ring 6 are annular nested structure, institute
State and be enclosed within outside the inner glue layer 2 of described flexible pipe body 10 end outside outer press ring 5, outside described inner glue layer 2 end, be provided with a ring
The boss 21 of shape, described outer press ring 5 inner ring end is provided with corresponding ring-shaped depression 51, and described boss 21 embeds described recessed
Fall into the sealing structure forming joint and pumped (conveying) medium in pipe in 51；Described outer press ring 5 turns down backward along its outer ring makes its section be in L
Type, routing up part is tubular pressure ring 52；
Outwards turnover makes the L-type that its section is in handstand to described inner pressure ring 6 its end face of front end edge, and described inner pressure ring 6 is enclosed within institute
Stating the part outside casing play 3 is cylindrical jacket 62, and described cylindrical jacket 62 rear end becomes inclined-plane phase with the contact surface of described outer glue-line 4
Support, the contact surface of described outer glue-line 4 be located on this inclined-plane constitute with the contact surface of described cylindrical jacket 62 with outside body
Sealing structure；The part that described inner pressure ring 6 turns up is annular disk 61, and described casing play 3 front end outwards turns down anti-package residence backward
State annular disk 61 front end face and side wall, the L-shaped that described annular disk 61 embeds described outer press ring 5 is wrapped, described annular disk 61
Front end face offsets and accommodates described casing play 3, annular disk described in described tubular pressure ring 52 overcoat with the rear end face of described outer press ring 5
61 and clamp described casing play 3 front end, the height of described tubular pressure ring 52 is less than the thickness of described annular disk 61, described kink method
Blue 1 is socketed on described cylindrical jacket 62 and is offseted with the rear end face of described annular disk 61, the inner glue layer of described flexible pipe body 10
2nd, casing play 3, outer glue-line 4, outer press ring 5, inner pressure ring 6 are integrally formed through sulfuration.
Described outer press ring 5, inner pressure ring 6, lap joint flange 1 are made of metal materials.
Described outer press ring 5, the contact surface of inner pressure ring 6 are provided with the waveform being mutually twisted or jagged teeth 7 are stung
Combined pressure tightly described casing play 3.
Described flexible pipe body inner glue layer 2, outer glue-line 4 are quality of rubber materials, and described casing play 3 adopts impregnation aromatic polyamide cord system
Make, described flexible pipe body 10 is integrally formed through sulfuration；Described outer press ring 5, inner pressure ring 6 contact surface gluing.
The deflection angle that turns up of described inner pressure ring 6 is arc transition, and described outer press ring 5 is to should circular arc setting camber line mistake
Cross.
Using method and self-lock mechanism：
Flexibility connection pipe is connected with pipeline, needs the pipe interface of docking to be similarly flange-interface, described in this programme
Lap joint flange axial direction buckle press joint is docked with flange-interface and is bolted pretension.Now by continuous pretension bolt, two methods
Orchid is constantly extruded by pretension, meanwhile, presses described outer press ring, inner pressure ring.The casing play that turns up thus naturally compressed, by
In being provided with the waveform being mutually twisted or jagged teeth 7, thus defining auto-lock function, with pipe in-vivo medium pressure
Strong increase, acts on pressure force on joint casing play 3 and also accordingly increases, and strengthens auto-lock function further, under elevated pressure conditions
Auto-lock function advantage becomes apparent from.In addition the boss of described body inner glue layer is due to being lying into described interior, the described outer press ring that is recessed
Also can promote to press described body inner glue layer end face and need mating interface end face.That is, the pretension of bolt not only docks
Secure interface, also compress described casing play.The present invention significantly simplifies attachment structure, the length reduction of joint design,
Facilitate installation, reduce deadweight, can complete to install in small space.
Form is axially withheld using the present invention and realizes joint and body pressing and forming in less space, by bump joint
Sealing position be designed as inside and outside pressure ring composite construction, inside and outside pressure ring design processing match wavy or angled fall
Laciniation, inside and outside pressure ring after treatment by body framework material end fasten compression, by sulfidization molding, make joint with
Framework material is combined as a whole；When gradually being fastened with bolt in flange installation process, inside and outside pressure ring pressing locking, skeleton material
Material is connected even closer with joint, enhances strength of joint, reliability and anti-pulling-and-doffing performance, and because the flexibility using this joint connects
Seal of tube face seals for metal rigidity, connection sealing can be effectively ensured from suitable seal, simultaneously non-aging.
During processing, the stitching surface of the inside and outside pressure ring of joint, through sandblasting, cleaning, spraying adhesive, drying, reaches and rubber
And the requirement of framework material excellent bonds；Traditionally complete flexibility connection pipe body cladding, be wound around after, erection joint simultaneously will be managed
Body framework material is dug with inside and outside pressure ring clamping, using frock compression, framework material and joint sulfidization molding, makes joint and bone
Rack-layer 3, inner glue layer 2, outer glue-line 4 are combined as a whole and constitute entirety.Bone is ensured using inside and outside pressure ring contact surface adhesive for spraying
Frame material and the bonding strength of metal joint.
Present invention axial direction buckle press joint structure with little bump joint size obtain good strength of joint, anti-pulling-and-doffing performance,
Sealing and reliability, and joint design is simple, lightweight, easy for installation；Can be by design of material, interface size design and pipe
Body structure design makes flexibility connection pipe be applied to the various working such as different interface shapes, inside nominal diameter, working media.Using this
Bright axial buckle press joint structure and its integrated molding technology can reach and hold in the range of flexibility connection pipe latus rectum DN32～DN100
No damaged by 25～20MPa burst pressure joint, connect bearing 15～12MPa burst pressure in the range of latus rectum DN125～DN250
Head no damages；Under 1.33 times of operating pressures, pulsating fatigue reaches No. 400,000 joints and no damages, and equipment and pipe-line system are effectively ensured
Security reliability.
Application examples 1
Manufacture experimently flexibility connection pipe according to axial buckle press joint structure and its integrated molding Analyzing on Building A Planning Scheme, analysis verification connects
Head reliability.
Flexibility connection pipe latus rectum DN250, operating pressure 3.0MPa, working medium water, interface size sets according to GB2501 standard
Meter.
See Fig. 6 according to above-mentioned requirements design flexibility connection pipe joint.
According to interface size design bump joint part, framework material adopts impregnation aromatic polyamide cord, and the inside and outside pressure ring of joint pastes
Conjunction face adopts special binder to process, and completes, after body cladding operation, to install metal joint part, by skeleton according to technological design
Material layer digs brushing adhesive, and clamping compresses between inside and outside pressure ring and with special tooling, thus flexibility connects after ensureing sulfuration
The anti-pulling-and-doffing performance of pipe joint.
Butt joint part stressing conditions are analyzed：
1) under working condition, flexibility connection pipe pressurising 3.0MPa, when safety coefficient is designed as 3 times of rated operating pressures, effect
Power in body unit length is：F=3PS=3 × 3.0MPa × (π × 250mm × 1mm)=7065N, i.e. unit length pipe
Body stress about 7.07kN/mm；
2) aromatic polyamide cord specification is 1670dtex/1 × 3, its elongation at break about 4%, pulls apart strength about 750N, stretching die
Amount 780cN/dtex, elastic modelling quantity 120GPa, cord winding angle is 54.4 °, and the cord number of plies is 4 layers, and flexibility connection pipe reaches peace
Overall coefficient, that is, under 3 times of rated operating pressure effects, body axial direction maximum distortion about 2.9mm, axial deformation about 2.5mm, here is made
Under firmly, 0.85kN/mm is about to pulling force suffered by individual layer framework material；
3) with reference to joint design size (Fig. 6), inside and outside pressure ring binding face is the lip/recess with certain angle
Structure, after framework material pressing locking, pulling force suffered by framework material can be analyzed to perpendicular to oblique in lip/recess pressing position
The normal force in face and the tangential force along bevel direction, tangential force here can be considered the pull-off that joint location framework material is subject to
Power, carries out force analysis to this position framework material, calculates pull-out force suffered by individual layer framework material and is about 0.61kN/mm；
4) pass through experimental test, treated rubber is 22kN/m, framework material and rubber with the bonding strength of metal
Bonding strength be 13kN/m (H extraction)；
5), after the fastening of 12-M24 bolt, bolt pretightening is approximately the self-locking action power to aromatic polyamide cord for the inside and outside pressure ring：P0
=σ 0 As=0.5 σ s As=0.5 × 640N/mm2 × 353mm2=112960N ≈ 113kN；P0 is pretightning force, and σ s is spiral shell
Line performance rate, As is the calculated diameter of threaded portion weak section.
6) framework material is by inside and outside pressure ring clamping partial-length about 60mm, therefore pull-out force suffered by individual layer framework material is about
37kN, clamping part adhesion of rubber to metal intensity is about 1.32kN, and framework material and rubber adhesion intensity are about 0.78kN,
Inside and outside pressure ring is about 113kN to the self-locking action power of cord.
As can be seen here, bonding force suffered by framework material and the collective effect power of self-locking action power, are far longer than flexibility connection pipe
Suffered pull-out force under 3 times of operating pressures, from point of theory analysis, flexibility connection pipe in a rated operation can not pull-off.
Performance test is carried out to flexibility connection pipe preproduction workpiece：
1) rated operating pressure, pressurize 15min are pressurized to flexibility connection pipe internal water flooding, body is without exception, connector status
Well；
2) flexibility connection pipe is pressurized to 2 times of rated operating pressures, pressurize 30min, body is without exception, and connector status are good；
3) pressurising is continued to flexibility connection pipe, to 12.5MPa body explosion, after explosion, joint still remains intact, by calculating
Pull-out force F=PExplosion× π × R2 show that resistance to plucking takes off ability and is more than 60T.
4) to flexibility connection pipe with 50～60 times/min of cycle, 0～1.33 times of rated operating pressure carries out pressure pulse test,
After 400000 subpulse tests, body is without exception, and connector status are good；
5) rated operating pressure is pressurized to flexibility connection pipe internal water flooding, one end is fixed, the other end is with the axial position of 24mm
Move, the axial displacement of 20mm carries out stretching, compresses, after respectively carrying out 20 extreme displacement complementation tests, body is without exception, nipple
State is good；
6) under rated operating pressure, carry out axial tension, the compression of 12mm, respectively carry out 1500 connector status good.
7) under rated operating pressure, carry out the radial shear 1500 times of 10mm, connector status are good.
By experimental test, self-locking is axially withheld with flexibility connection pipe joint design reliability to verify, this joint design
By tensile and compress, radial shear, and under the various operating modes such as all directions impact displacement, internal pressure pulse, all
Can guarantee that good anti-pulling-and-doffing performance and sealing, there is high security reliability, fully meet conventional flex union nipple
Install and use requirement.
In sum, self-locking of the present invention axially withhold flexibility connection pipe joint design have rational in infrastructure, manufacture work
The advantages of skill is simple, the de- ability of resistance to plucking is strong, has high security reliability, and it is lightweight, size is little, can meet little space
Flexibility connection pipe installation requirements, and do not affect the performances such as vibration damping, noise reduction, shock resistance, bit shift compensation that flexibility connection pipe has will
Ask it is adaptable to the joint of each field flexibility connection pipe designs and fabricates.
Claims (5)
1. a kind of axial buckle press joint, including lap joint flange (1), flexible pipe body (10)；Described lap joint flange (1) is tied for ring flange
Structure, described flexible pipe body (10) includes inner glue layer (2), casing play (3), outer glue-line (4), described buckle press joint from inside to outside successively
Positioned at the termination of described flexible pipe body (10) it is characterised in that：
Described buckle press joint also includes outer press ring (5), inner pressure ring (6), and described outer press ring (5), inner pressure ring (6) are annular noose
Structure, is enclosed within the inner glue layer (2) of described flexible pipe body (10) end outward, outside described inner glue layer (2) end outside described outer press ring (5)
It is provided with the boss (21) of a ring shape, described outer press ring (5) inner ring end is provided with corresponding ring-shaped depression (51), institute
State boss (21) and embed the sealing structure forming joint and pumped (conveying) medium in pipe in described depression (51)；Described outer press ring (5) edge
Its outer ring turns down backward makes its section L-shaped, and routing up part is tubular pressure ring (52)；
Outwards turnover makes the L-type that its section is in handstand to described inner pressure ring (6) its end face of front end edge, and described inner pressure ring (6) is enclosed within institute
Stating casing play (3) part outward is cylindrical jacket (62), the contact surface of described cylindrical jacket (62) rear end and described outer glue-line (4)
Inclined-plane is become to offset, the contact surface of described outer glue-line (4) is located at and is constituted with the contact surface of described cylindrical jacket (62) on this inclined-plane
With the sealing structure outside body；The part that described inner pressure ring (6) is turned up is annular disk (61), described casing play (3) front end to
Annular disk (61) front end face and side wall are stated in the outer anti-package residence of turnover backward, and described annular disk (61) embeds the L of described outer press ring (5)
Shape is wrapped, and the front end face of described annular disk (61) offsets and accommodates described casing play with the rear end face of described outer press ring (5)
(3), annular disk (61) described in described tubular pressure ring (52) overcoat clamp described casing play (3) front end, described tubular pressure ring
(52) height is less than the thickness of described annular disk (61), and described lap joint flange (1) is socketed on described cylindrical jacket (62) simultaneously
Offset with the rear end face of described annular disk (61), the inner glue layer (2) of described flexible pipe body (10), casing play (3), outer glue-line (4),
Outer press ring (5), inner pressure ring (6) are integrally formed through sulfuration.
2. a kind of axial buckle press joint according to claim 1 it is characterised in that：Described outer press ring (5), inner pressure ring (6),
Lap joint flange (1) is made of metal material.
3. a kind of axial buckle press joint according to claim 1 it is characterised in that：Described outer press ring (5), inner pressure ring (6)
Contact surface be provided with the waveform being mutually twisted or jagged teeth (7) occlusion compress described casing play (3).
4. a kind of axial buckle press joint according to claim 1 it is characterised in that：Described flexible pipe body inner glue layer (2), outer
Glue-line (4) is quality of rubber materials, and described casing play (3) adopts impregnation aromatic polyamide cord to make, and described flexible pipe body (10) is through sulfuration one
Body formed；Described outer press ring (5), inner pressure ring (6) contact surface gluing.
5. a kind of axial buckle press joint according to claim 1 it is characterised in that：The turnover of turning up of described inner pressure ring (6)
Angle is arc transition, and described outer press ring (5) is to should circular arc setting arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610851487.3A CN106402545B (en) | 2016-09-26 | 2016-09-26 | A kind of axial direction buckle press joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610851487.3A CN106402545B (en) | 2016-09-26 | 2016-09-26 | A kind of axial direction buckle press joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106402545A true CN106402545A (en) | 2017-02-15 |
| CN106402545B CN106402545B (en) | 2018-06-19 |
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ID=57997434
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610851487.3A Active CN106402545B (en) | 2016-09-26 | 2016-09-26 | A kind of axial direction buckle press joint |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271534A (en) * | 2020-03-05 | 2020-06-12 | 张建军 | Fatigue-resistant impact-resistant pull-out-resistant bidirectional buckling and pressing joint |
| CN111306374A (en) * | 2020-03-05 | 2020-06-19 | 张建军 | Low-rigidity impact-resistant large-displacement compensation balanced type double-arc flexible connecting pipe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201749A (en) * | 1922-07-19 | 1923-08-09 | Ramsay Condensing Locomotive C | Improvements in or relating to flexible pipe couplings |
| CN2680949Y (en) * | 2004-02-27 | 2005-02-23 | 中国人民解放军海军工程大学 | Balanced type elbow form flexible connecting pipe |
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| GB201749A (en) * | 1922-07-19 | 1923-08-09 | Ramsay Condensing Locomotive C | Improvements in or relating to flexible pipe couplings |
| CN2680949Y (en) * | 2004-02-27 | 2005-02-23 | 中国人民解放军海军工程大学 | Balanced type elbow form flexible connecting pipe |
| CN104100803A (en) * | 2014-07-17 | 2014-10-15 | 宁波市正一砼泵配件有限公司 | Rubber damping throat for delivering concrete |
| CN104964113A (en) * | 2015-07-02 | 2015-10-07 | 中国铁建重工集团有限公司 | Compensator for slurry balance shield mud circulation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271534A (en) * | 2020-03-05 | 2020-06-12 | 张建军 | Fatigue-resistant impact-resistant pull-out-resistant bidirectional buckling and pressing joint |
| CN111306374A (en) * | 2020-03-05 | 2020-06-19 | 张建军 | Low-rigidity impact-resistant large-displacement compensation balanced type double-arc flexible connecting pipe |
| CN111306374B (en) * | 2020-03-05 | 2021-06-22 | 张建军 | Low-rigidity impact-resistant large-displacement compensation balanced type double-arc flexible connecting pipe |
| CN111271534B (en) * | 2020-03-05 | 2021-09-17 | 张建军 | Fatigue-resistant impact-resistant pull-out-resistant bidirectional buckling and pressing joint |
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| CN106402545B (en) | 2018-06-19 |
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