CN105465507B - A kind of compression type corrugated stainless steel tubing and its assemble method for gas pipeline - Google Patents
A kind of compression type corrugated stainless steel tubing and its assemble method for gas pipeline Download PDFInfo
- Publication number
- CN105465507B CN105465507B CN201610021576.5A CN201610021576A CN105465507B CN 105465507 B CN105465507 B CN 105465507B CN 201610021576 A CN201610021576 A CN 201610021576A CN 105465507 B CN105465507 B CN 105465507B
- Authority
- CN
- China
- Prior art keywords
- bellows
- copper nut
- stainless steel
- nut
- shape
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Joints With Pressure Members (AREA)
- Gasket Seals (AREA)
Abstract
Include the invention discloses a kind of compression type corrugated stainless steel tubing and its assemble method for gas pipeline：First copper nut, cone seal packing ring, male connection, short steel bushing, bellows, coating, long steel bushing, flat gasket circle and the second copper nut；Connect combustion gas main line and gas kitchen ranges using the bellows, have many advantages, such as applicable pipelines interface, install with exchange that convenient and step is succinct, provide that coupling mechanism force reliable sealing performance is good, be connected firmly safely and effectively, high-low temperature resistant, good appearance, with outside coating corrosion resistance and good, service life length, hickey and Green's interface can independent assortment use.
Description
Technical field
The present invention relates to a kind of bellows and its assemble method, more particularly to a kind of compression type for gas pipeline not
Become rusty corrugated steel pipe and its assemble method.
Background technology
Gas appliance connection is exclusively used in connecting combustion gas main line, transmission combustion gas, coal gas, oil liquefied gas or natural pond with bellows
The flexible connecting lines of the sources of the gas such as gas and stationary gas kitchen range, it is very universal in the prior art.Bellows is
It is made of metal charge, the soft connecting tube of the metal material with helical fissure, bellows has certain flexibility can be with
Meaning bending has the advantage of hard metal tubing concurrently without bending, and will not produce the installation of rubber tube and exchange inconvenience, will not
The easy some retardation under bending state, will not produce corrosion-resistant, easy aging, service life short and easy leak
Phenomenon.
(1) fault of construction of bellows in the prior art：
But either two ends use lattice to the bellows used in the prior art using nipple mode or two ends
Woods joint style connects combustion gas main line and gas kitchen ranges, although its is easy to connect reliable, can thoroughly prevent leakage phenomenon, it is to avoid
Cause poisoning, the accident potential of explosive incident because of gas leakage, but connected mode underaction；Meanwhile, prior art is
Bellows and the hard pipeline of steel or PVC material is set to be tightly connected, in the market using the prefabricated joint of engineering
Or using the joint of clamp sleeve, but said structure is in installation and functionally existing defects：
1. when using engineering prefabricated joint：
Referring to " plug-in spiral corrugated metal flexible coupling pipe ", the ZL that China Patent No. is ZL 97225276.2
97225278.9 " it is soft with spiral corrugated metal pipe that spiral corrugated metal flexible coupling pipe " discloses two kinds of processing
The structure and scheme of connecting tube, its two ends is welded with the thread connecting joint of metal；These three are related to scheme and employ ripple gold
Belong to pipe main body, arbitrarily can be bent with certain flexibility without bending, and threaded connection is convenient and reliable, can thoroughly prevent leakage
The phenomenons such as gas, choke, leak, cause poisoning, the accident potential of explosive incident because of gas leakage so as to eliminate, actual use effect
Fruit is very well.But it is due to that the termination of corrugated flexible metal tube main body must all be welded with a metal in above-mentioned three kinds of technical schemes
Joint, this is just limited its length dimension, determines just change when dispatching from the factory, more can not be at the scene according to institute
Length is needed to carry out free cutting.And the various mounting locations that can not be used widely.
2. when using clamp sleeve joint：
Referring to " a kind of attachment structure of the bellows of improvement " that China Patent No. is ZL200810059270.4, the connection
Structure includes two liners and a nut, and the inner side of liner has the shape matched with ripple tube outer surface, and spiro cap exists
On bellows, nut is connected by screw thread with adapter, and the shade of nut is blocked in the end of above-mentioned liner.
The attachment structure of above-mentioned bellows is to be withheld using liner on bellows, does not fall out bellows；Then it is sharp
Liner is blocked with nut, just bellows is fixedly connected with adapter after nut is connected with adapter.Adapter and bellows it
Between set sealing ring can play sealed effect, to prevent junction from leakage phenomenon occur.
During due to installing there is the insecure situation of coupling mechanism force that provides in the stopping means of bellows, and operating personnel are in locking
If excessive force, may damage using and the single crest shape of bellows coordinate stopping means, cause position-limit mechanism fracture or
The single crest gross distortion of person's bellows, leads to not provide enough coupling mechanism forces and trigger leakage.In order to repair the portion of damage
Related bellows crest need to be cut off by dividing, and thus influence installation effect and efficiency.Simultaneously because seal face can during bellows production
Can there are sharp burrs or fast mouth situation, ripple is easily caused when applying excessive helical pressure to it or carrying out and repeatedly compressing
End surfaces cut seal, cause seal to damage and influence the sealing effectiveness of bellows.
(2) the assemble method defect of bellows structure in the prior art：
1. for the assemble method of engineering preparation joint：
Referring to " plug-in spiral corrugated metal flexible coupling pipe ", the ZL that China Patent No. is ZL 97225276.2
97225278.9 " mount scheme of two kinds of corrugated metal pipes disclosed in spiral corrugated metal flexible coupling pipe ", the first use
Corrugated metal pipe and connector welding fabrication, are recycled connector to be threadedly coupled with coupling nut, are caused using both extruding
Therebetween sealing ring deforms on fixed Green's joint again, this assembling mode using be welded to connect corrugated metal pipe and
Connector, number of assembling steps is cumbersome, high to welding requirements to avoid welding the overlap caused；Second in metal bellows two ends set
After connecing coupling nut, then metal bellows and adpting flange welded, adpting flange has boss, utilizes the convex of adpting flange
Platform coordinates with Gas Pipe street corner causes sealing ring therebetween to deform, and this assembling mode uses and is welded to connect metal bellows
And adpting flange, number of assembling steps is cumbersome, and coupling nut rotation inconvenience is caused to avoid welding the overlap caused, therefore will to welding
Ask high, and coupling nut rotates the abrasion that can cause it to metal bellows on metal bellows, reduces the life-span.
2. for the assemble method of clamp sleeve joint：
It is disclosed for ZL200810059270.4 " a kind of attachment structure of the bellows of improvement " referring to China Patent No.
The mount scheme of bellows, it is that first nut is set with bellows, then two panels liner is sleeved on the outer surface of bellows,
The inner side of liner has the shape matched with ripple tube outer surface, is coordinated using the screw thread of pipe joint and nut so that nut
Shade be blocked in the end of above-mentioned liner, and then fixed bellows, if operating personnel's excessive force in locking, may be damaged
Using the stopping means coordinated with the single crest shape of bellows, cause that position-limit mechanism fractures or the single crest of bellows seriously becomes
Shape, leads to not provide enough coupling mechanism forces and trigger leakage.
(3) other defect of bellows in the prior art：
1. when the two ends of bellows use same joint：
The two ends of metal bellows of the prior art use the joint of identical type, but when combustion gas main line and combustion gas
When kitchen range use different types of joint between the two, the inconvenience that bellows can be caused to connect.For example combustion gas main line is used
Nipple and gas kitchen ranges use Green's joint, then can not be directly using metal bellows of the prior art to two
Person is attached.The two ends for only having bellows in the prior art use mounting means during same tip to be described, and also do not have pair
Bellows two ends provide enlightenment using the mounting means of different joints.
2. when bellows do not have coating：
The outside of metal bellows of the prior art lacks coating, and the metal part of bellows can expose outside, shadow
Sound is attractive in appearance, so can also cause metal part to be acted on and corroded to it by extraneous medium, while can be hurt by extraneous sharp weapon, easily
Cause leakage accident.Only bellows is not described using the mounting means of the coating of periphery in the prior art, also not had
Enlightenment is provided using the mounting means of the coating of periphery to bellows.
Due to there is above-mentioned defect in the prior art, market in urgent need one kind is applied to pipelines interface, with raising
The sealing leak situation that the installation effectiveness of operator, the reliable damage for providing coupling mechanism force and reduction to seal are caused occurs, simultaneously
And corrugated stainless steel tubing and its assemble method safer, effective and with outside coating.
The content of the invention
It is an object of the invention to provide a kind of compression type corrugated stainless steel tubing and its assemble method for gas pipeline, energy
Overcome the shortcoming of above-mentioned prior art, there is wide applicability to existing different types of joint, good dismounting is reached
Efficiency, it is connected firmly, service life length and other effects.
To achieve the above object, the present invention provides following technical scheme：A kind of compression type stainless steel for gas pipeline
The assemble method of bellows, the corrugated stainless steel tubing includes：First copper nut, cone seal packing ring, male connection, short steel
Set, bellows, coating, long steel bushing, flat gasket circle and the second copper nut；The corrugated stainless steel tubing uses following steps group
Dress：1) bellows is welded into pipe using 304 stainless steel bands of 0.2mm thickness, and pipe is carried out to be formed after post forming
The equidistant corrugated body of rule, that is, form the bellows segment being located in the middle part of the bellows, a diameter of 13mm of the bellows, the pitch of waves
For 3mm, crest height is 1.7mm, and solution treatment is carried out to its surface so that bright inside and outside the bellows；2) it will be in cylinder
The coating of shape is uniformly set on the outer surface of the bellows segment of the bellows；3) the short steel bushing is in rank
Terraced sleeve-shaped, the short steel bushing is inserted in from the straight length of one end positioned at the pipe, its smaller diameter end is set in institute
The straight length of bellows is stated, its larger diameter end part is covered the coating of the bellows bellows segment；4) the long steel
Set is in ladder bushing shape, and the straight length of long steel bushing from the other end positioned at the pipe is inserted in, makes its smaller diameter end
The straight length of the other end of the bellows is set in, its larger diameter end part is covered the bellows bellows segment other end
The coating；5) one end of the male connection is cylindrical in shape, and the other end is in outer-hexagonal nut shape, and the external screw thread is connect
The other end of head is inserted in from the straight length direction of one end of the pipe, and being set in for making its rotatable and be axially movable is described
The smaller diameter end of short steel bushing；6) second copper nut, will be described in outer-hexagonal nut shape and with the tubular boss of axial direction
Tubular boss is inserted in from the straight length direction of the other end of the pipe, and being set in for making its rotatable and be axially movable is described
The smaller diameter end of long steel bushing；7) two straight lengths on the pipe are processed, one end formed port part have diameter by
The big stepped openings section of gradual change, other end formation port part has radially projecting flange；8) the cone seal packing ring is put
Put inside first copper nut, first copper nut is coordinated using screw thread nibbles one end with the male connection
Close；9) the flat gasket circle is placed on inside second copper nut, with the lip fits；10) to forming finished product
Corrugated stainless steel tubing is detected, and packaging and storage.
It is preferred that, airtight testing sealing is carried out to finished product bellows, test pressure is 0.3Mpa/1min；The coating is
PVC protective layers.
It is preferred that, the flat gasket circle is processed into u-shaped by natural rubber, and internal diameter is 12mm, and external diameter is 18.5mm, thickness
For 3mm, surface is smooth complete.
It is preferred that, first copper nut uses HPb59-1 brass to be finish-machined to nut of the specification for M18, it is ensured that taper
Seal washer precision abuts in the first shape counterface, and surface carries out Nickel Plating Treatment, wear resistant corrosion resistant.
It is preferred that, second copper nut uses HPb59-1 brass to be finish-machined to nut of the specification for G1/2, and surface is carried out
Nickel Plating Treatment, wear resistant corrosion resistant.
A kind of corrugated stainless steel tubing, it is carried out according to the assemble method of the compression type corrugated stainless steel tubing for gas pipeline
Assembling, including：First copper nut, cone seal packing ring, male connection, short steel bushing, bellows, coating, long steel bushing, plain cushion
Sealing ring and the second copper nut；First copper nut is in outer-hexagonal nut shape, and connecting pipe interface connects with the external screw thread
Head, its one end for connecting the male connection has internal thread；The barrel of described male connection one end has and institute
State the external screw thread of the internal thread engagement of the first copper nut；The cone seal packing ring is arranged on first copper nut and described outer
Between nipple；The smaller diameter end and the other end of the male connection of the short steel bushing are slidably connected；The long steel bushing
Smaller diameter end and one end of second copper nut be slidably connected, and the smaller diameter end of the long steel bushing length be more than it is described
The length of the smaller diameter end of short steel bushing；The tubular boss of second copper nut is located at one end of second copper nut simultaneously
It is slidably located in the smaller diameter end of the long steel bushing, the other end of second copper nut has internal thread, it is another for connecting
A kind of pipe joint；The flat gasket circle is arranged on inside second copper nut.
It is preferred that, the stepped openings of bellows section be arranged on the cone seal packing ring and the male connection it
Between；The radially projecting flange of the bellows is arranged between second copper nut and the flat gasket circle.
It is preferred that, the cone seal packing ring is annular seal packing ring of the section in isosceles trapezoid；The flat gasket circle
For the rectangular U-shaped seal washer of section.
It is preferred that, the inside of first copper nut has the first shape abutting end coordinated with the cone seal packing ring
Face, and the shape counterface connects the inwall of two different inner diameters of first copper nut；The male connection is in cylinder
One end of shape has the faying face coordinated with the cone seal cast；Utilize first copper nut and the male connection
Screw thread coordinate and the conical seal ring is produced elastic deformation, its sealing is fixed on Green's interface of pipeline.
It is preferred that, the inside of second copper nut have that the radially projecting flange shape with the bellows coordinates the
Dimorphism counterface, and the second shape counterface connects the inwall of two different inner diameters of second copper nut；It is described
Another surface of the radially projecting flange of bellows coordinates with the flat gasket circle；Second copper nut utilizes internal thread and pipe
The hickey connection on road, and make the flat gasket using the radially projecting flange of the hickey and the bellows
Circle produces elastic deformation and reaches sealing effectiveness.
The invention provides a kind of compression type corrugated stainless steel tubing and its assemble method for gas pipeline, the ripple is used
Line pipe connects combustion gas main line and gas kitchen ranges, with applicable pipelines interface, installs with exchanging the letter of convenient and operational sequence
It is clean, provide coupling mechanism force reliable sealing performance it is good, be connected firmly safely and effectively, high-low temperature resistant, good appearance, with outside coating
Corrosion resistance and good, service life length, can effectively prevent damaged by rats or extraneous sharp weapon from scratching, with hickey and Green's interface all
Can independent assortment using, can be to prevent getting rusty and ensure that nut slides on raising disassembly efficiency with long and short steel bushing.
Brief description of the drawings：
Fig. 1 is a kind of compression type corrugated stainless steel tubing and its structural representation of assemble method for gas pipeline；
Fig. 2 is a kind of for part A in the compression type corrugated stainless steel tubing of gas pipeline and its accompanying drawing 1 of assemble method
The enlarged drawing of bellows；
Fig. 3 is a kind of for part B in the compression type corrugated stainless steel tubing of gas pipeline and its accompanying drawing 1 of assemble method
The enlarged drawing of one end end of bellows；
Fig. 4 is a kind of for C portion in the compression type corrugated stainless steel tubing of gas pipeline and its accompanying drawing 1 of assemble method
The enlarged drawing of the other end end of bellows；
Fig. 5 is a kind of bellows segment of the bellows of compression type corrugated stainless steel tubing for gas pipeline and its assemble method
Schematic diagram；
Fig. 6 is close for the taper of a kind of compression type corrugated stainless steel tubing for gas pipeline and its bellows of assemble method
The schematic diagram of seal washer；
Fig. 7 is a kind of compression type corrugated stainless steel tubing for gas pipeline and its first bronze medal of the bellows of assemble method
The schematic diagram of nut；
Fig. 8 is a kind of compression type corrugated stainless steel tubing for gas pipeline and its second bronze medal of the bellows of assemble method
The schematic diagram of nut；
Fig. 9 is a kind of compression type corrugated stainless steel tubing for gas pipeline and its external screw thread of the bellows of assemble method
The schematic diagram of joint；
Figure 10 is a kind of compression type corrugated stainless steel tubing for gas pipeline and its short steel of the bellows of assemble method
The schematic diagram of set；
Figure 11 is a kind of compression type corrugated stainless steel tubing for gas pipeline and its long steel of the bellows of assemble method
The schematic diagram of set.
Embodiment：
To make the purpose, technical scheme and advantage of the invention implemented clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or the element with same or like function.Described embodiment is the present invention
A part of embodiment, rather than whole embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to uses
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.Under
Embodiments of the invention are described in detail with reference to accompanying drawing for face.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, is for only for ease of the description present invention and simplifies description, rather than indicate or imply signified dress
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to present invention protection
The limitation of scope.
In a broad embodiment of the invention, a kind of assembling side of compression type corrugated stainless steel tubing for gas pipeline
Method, the corrugated stainless steel tubing includes：It is first copper nut, cone seal packing ring, male connection, short steel bushing, bellows, coated
Layer, long steel bushing, flat gasket circle and the second copper nut；The corrugated stainless steel tubing is assembled using following steps：1) ripple
Pipe is welded into pipe using 304 stainless steel bands of 0.2mm thickness, and the equidistant ripple of formation rule after post forming is carried out to pipe
Body, that is, form the bellows segment being located in the middle part of the bellows, a diameter of 13mm of the bellows, the pitch of waves is 3mm, crest height
For 1.7mm, solution treatment is carried out to its surface so that bright inside and outside the bellows；2) by the described coated of cylindrical shape
Layer is uniformly set on the outer surface of the bellows segment of the bellows；3) the short steel bushing is in ladder bushing shape, will
The short steel bushing is inserted in from the straight length of one end positioned at the pipe, its smaller diameter end is set in the straight tube of the bellows
Section, makes its larger diameter end part cover the coating of the bellows bellows segment；4) the long steel bushing is in ladder bushing shape
Shape, the straight length of long steel bushing from the other end positioned at the pipe is inserted in, its smaller diameter end is set in the ripple
The straight length of the other end of pipe, makes its larger diameter end part cover the coating of the bellows bellows segment other end；5)
One end of the male connection is cylindrical in shape, the other end be in outer-hexagonal nut shape, by the other end of the male connection from
The straight length direction of one end of the pipe is inserted in, and what is made its rotatable and be axially movable is set in the small straight of the short steel bushing
Footpath end；6) second copper nut is in outer-hexagonal nut shape and with the tubular boss of axial direction, by the tubular boss from institute
The straight length direction for stating the other end of pipe is inserted in, and what is made its rotatable and be axially movable is set in the small straight of the long steel bushing
Footpath end；7) two straight lengths on the pipe are processed, one end, which forms port part, has the ladder that diameter becomes larger
Open section, other end formation port part has radially projecting flange；8) the cone seal packing ring is placed on described first
Inside copper nut, first copper nut 1 is coordinated using screw thread engages one end with the male connection 3；9) will be described
Flat gasket circle is placed on inside second copper nut, with the lip fits；10) to the corrugated stainless steel tubing of formation finished product
Detected, and packaging and storage.
A kind of corrugated stainless steel tubing, it is carried out according to the assemble method of the compression type corrugated stainless steel tubing for gas pipeline
Assembling, including：First copper nut, cone seal packing ring, male connection, short steel bushing, bellows, coating, long steel bushing, plain cushion
Sealing ring and the second copper nut；First copper nut is in outer-hexagonal nut shape, and connecting pipe interface connects with the external screw thread
Head, its one end for connecting the male connection has internal thread；The barrel of described male connection one end has and institute
State the external screw thread of the internal thread engagement of the first copper nut；The cone seal packing ring is arranged on first copper nut and described outer
Between nipple；The smaller diameter end and the other end of the male connection of the short steel bushing are slidably connected；The long steel bushing
Smaller diameter end and one end of second copper nut be slidably connected, and the smaller diameter end of the long steel bushing length be more than it is described
The length of the smaller diameter end of short steel bushing；The tubular boss of second copper nut is located at one end of second copper nut simultaneously
It is slidably located in the smaller diameter end of the long steel bushing, the other end of second copper nut has internal thread, it is another for connecting
A kind of pipe joint；The flat gasket circle is arranged on inside second copper nut.
Using the compression type corrugated stainless steel tubing for gas pipeline of the application, it is responsible for using bellows connection combustion gas
Road and gas kitchen ranges, with applicable pipelines interface, install with exchange convenient and operational sequence it is succinct, coupling mechanism force is provided can
By good seal performance, be connected firmly safe and effective, high-low temperature resistant, good appearance, with outside coating corrosion resistance and good, make
With long lifespan, can effectively prevent damaged by rats or extraneous sharp weapon from scratching, with hickey and Green's interface can independent assortment use,
Can be to prevent getting rusty and ensure that nut slides on raising disassembly efficiency with long and short steel bushing.
As shown in figure 1, a kind of assemble method of compression type corrugated stainless steel tubing for gas pipeline, the stainless steel wave
Line pipe includes：First copper nut 1, cone seal packing ring 2, male connection 3, short steel bushing 4, bellows 5, coating 6, long steel bushing
7th, the copper nut 9 of flat gasket circle 8 and second.
The corrugated stainless steel tubing is assembled using following steps：1) the 304 of the use of the bellows 5 0.2mm thickness is stainless
Steel band is welded into pipe, and the equidistant corrugated body of formation rule after post forming is carried out to pipe, that is, is formed and be located at the bellows 5
The bellows segment at middle part, a diameter of 13mm of the bellows 5, the pitch of waves is 3mm, and crest height is 1.7mm, and its surface is consolidated
Molten processing so that bright inside and outside the bellows 5；2) coating 6 of cylindrical shape is uniformly set in the ripple
On the outer surface of the bellows segment of line pipe 5；3) the short steel bushing 4 is in ladder bushing shape, by the short steel bushing 4 from positioned at institute
The straight length for stating one end of pipe is inserted in, and its smaller diameter end is set in the straight length of the bellows 5, is made its large-diameter end
Divide the coating 6 of the covering bellows segment of bellows 5；4) the long steel bushing 7 is in ladder bushing shape, by the long steel bushing
7 are inserted in from the straight length of the other end positioned at the pipe, its smaller diameter end is set in the straight of the other end of the bellows 5
Pipeline section, makes its larger diameter end part cover the coating 6 of the bellows segment other end of bellows 5；5) external screw thread connects
First 3 one end is cylindrical in shape, and the other end is in outer-hexagonal nut shape, by the other end of the male connection 3 from the pipe
The straight length direction of one end is inserted in, and what is made its rotatable and be axially movable is set in the smaller diameter end of the short steel bushing 4；6) institute
The second copper nut 9 is stated in outer-hexagonal nut shape and with the tubular boss of axial direction, by the tubular boss from the pipe
The straight length direction of the other end is inserted in, and what is made its rotatable and be axially movable is set in the smaller diameter end of the long steel bushing 7；7)
Two straight lengths on the pipe are processed, one end forms the stepped openings section that there is port part diameter to become larger,
Other end formation port part has radially projecting flange；8) the cone seal packing ring 2 is placed on first copper nut 1
Inside, first copper nut 1 is coordinated using screw thread engages one end with the male connection 3；9) it is the plain cushion is close
Seal 8 is placed on inside second copper nut 9, with the lip fits；10) corrugated stainless steel tubing for forming finished product is carried out
Detection, and packaging and storage.
Airtight testing sealing is carried out to finished product bellows, test pressure is 0.3 Mpa/1min；The coating 6 is protected for PVC
Sheath.
The flat gasket circle 8 is processed into u-shaped by natural rubber, and internal diameter is 12mm, and external diameter is 18.5mm, and thickness is 3mm,
Surface is smooth complete.
First copper nut 1 uses HPb59-1 brass to be finish-machined to nut of the specification for M18, it is ensured that conical gasket
Enclose 2 precisions and abut in the first shape counterface, surface carries out Nickel Plating Treatment, wear resistant corrosion resistant.
Second copper nut 9 uses HPb59-1 brass to be finish-machined to nut of the specification for G1/2, and surface is carried out at nickel plating
Reason, wear resistant corrosion resistant.
As Figure 1-10 shows, a kind of corrugated stainless steel tubing, it is according to the compression type corrugated stainless steel tubing for gas pipeline
Assemble method assembled, including：First copper nut 1, cone seal packing ring 2, male connection 3, short steel bushing 4, bellows
5th, coating 6, long steel bushing 7, the copper nut 9 of flat gasket circle 8 and second；First copper nut 1 is in outer-hexagonal nut shape, even
Adapter pipeline joint and the male connection 3, its one end for connecting the male connection 3 have internal thread；The external screw thread
The barrel of the one end of joint 3 has the external screw thread engaged with the internal thread of first copper nut 1；The cone seal packing ring
2 are arranged between first copper nut 1 and the male connection 3；The smaller diameter end of the short steel bushing 4 and the external screw thread
The other end of joint 3 is slidably connected；The smaller diameter end of the long steel bushing 7 and one end of second copper nut 9 are slidably connected, and
The length of the smaller diameter end of the long steel bushing 7 is more than the length of the smaller diameter end of the short steel bushing 4；The institute of second copper nut
Tubular boss is stated positioned at one end of second copper nut 9 and is slidably located in the smaller diameter end of the long steel bushing 7, described the
The other end of two copper nuts 9 has internal thread, for connecting another pipe joint；The flat gasket circle 8 is arranged on described
Inside second copper nut 9.
The stepped openings section of the bellows 5 is arranged between the cone seal packing ring 2 and the male connection 3；
The radially projecting flange of the bellows 5 is arranged between second copper nut 9 and the flat gasket circle 8.
The cone seal packing ring 2 is annular seal packing ring of the section in isosceles trapezoid；The flat gasket circle 8 is section
Rectangular U-shaped seal washer.
The inside of first copper nut 1 has the first shape counterface coordinated with the cone seal packing ring 2, and institute
State the inwall that shape counterface connects two different inner diameters of first copper nut 1；The male connection 3 tubular one
End is with the faying face coordinated with the shape of conical seal ring 2；Utilize first copper nut 1 and the male connection 3
Screw thread, which coordinates, makes the conical seal ring 2 produce elastic deformation, its sealing is fixed on Green's interface of pipeline.
The inside of second copper nut 9 has the second shape that the radially projecting flange shape with the bellows 5 coordinates
Counterface, and the second shape counterface connects the inwall of two different inner diameters of second copper nut 9；The ripple
Another surface of the radially projecting flange of pipe 5 coordinates with the flat gasket circle 8；Second copper nut 9 utilizes internal thread and pipe
The hickey connection on road, and make the plain cushion close using the radially projecting flange of the hickey and the bellows 5
Seal 8 produces elastic deformation and reaches sealing effectiveness.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
The present invention is described in detail with reference to the foregoing embodiments for pipe, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, or which part technical characteristic is equally replaced
Change；And these modifications or replacement, the essence of appropriate technical solution is departed from the essence of various embodiments of the present invention technical scheme
God and scope.
Claims (10)
1. a kind of assemble method of compression type corrugated stainless steel tubing for gas pipeline, the corrugated stainless steel tubing includes：The
One copper nut (1), cone seal packing ring (2), male connection (3), short steel bushing (4), bellows (5), coating (6), long steel
Cover (7), flat gasket circle (8) and the second copper nut (9)；It is characterized in that：The corrugated stainless steel tubing uses following steps group
Dress：
1) bellows (5) is welded into pipe using 304 stainless steel bands of 0.2mm thickness, and pipe is carried out after post forming
The equidistant corrugated body of formation rule, that is, form the bellows segment being located in the middle part of the bellows (5), the diameter of the bellows (5)
For 13mm, the pitch of waves is 3mm, and crest height is 1.7mm, carries out solution treatment to its surface so that light inside and outside the bellows (5)
It is bright；
2) coating (6) of cylindrical shape is uniformly set in the appearance of the bellows segment of the bellows (5)
On face；
3) the short steel bushing (4) is in ladder bushing shape, by the short steel bushing (4) from the straight length of one end positioned at the pipe
It is inserted in, its smaller diameter end is set in the straight length of the bellows (5), its larger diameter end part is covered the bellows
(5) coating (6) of bellows segment；
4) the long steel bushing (7) is in ladder bushing shape, by the long steel bushing (7) from the straight tube of the other end positioned at the pipe
Section is inserted in, and its smaller diameter end is set in the straight length of the other end of the bellows (5), its larger diameter end part is covered institute
State the coating (6) of bellows (5) bellows segment other end；
5) one end of the male connection (3) is cylindrical in shape, and the other end is in outer-hexagonal nut shape, by the male connection
(3) the other end is inserted in from the straight length direction of one end of the pipe, and what is made its rotatable and be axially movable is set in institute
State the smaller diameter end of short steel bushing (4)；
6) second copper nut (9) in outer-hexagonal nut shape and with axial direction tubular boss, by the tubular boss from
The straight length direction of the other end of the pipe is inserted in, and what is made its rotatable and be axially movable is set in the long steel bushing (7)
Smaller diameter end；
7) two straight lengths on the pipe are processed, the ladder that one end forms port part and there is diameter to become larger is opened
Mouth section, other end formation port part has radially projecting flange；
8) the cone seal packing ring (2) is placed on the first copper nut (1) inside, first copper nut (1) utilizes
Screw thread, which coordinates, engages one end with the male connection (3)；
9) the flat gasket circle (8) is placed on the second copper nut (9) inside, with the lip fits；
10) corrugated stainless steel tubing for forming finished product is detected, and packaging and storage.
2. a kind of assemble method of compression type corrugated stainless steel tubing for gas pipeline according to claim 1, it is special
Levy and be：Airtight testing sealing is carried out to finished product bellows, test pressure is 0.3Mpa/1min；The coating (6) is protected for PVC
Sheath.
3. a kind of assemble method of compression type corrugated stainless steel tubing for gas pipeline according to claim 2, it is special
Levy and be：The flat gasket circle (8) is processed into u-shaped by natural rubber, and internal diameter is 12mm, and external diameter is 18.5mm, and thickness is
3mm, surface is smooth complete.
4. a kind of assemble method of compression type corrugated stainless steel tubing for gas pipeline according to claim 3, it is special
Levy and be：First copper nut (1) uses HPb59-1 brass to be finish-machined to nut of the specification for M18, it is ensured that conical gasket
Circle (2) precision abuts in the first shape counterface, and surface carries out Nickel Plating Treatment, wear resistant corrosion resistant.
5. a kind of assemble method of compression type corrugated stainless steel tubing for gas pipeline according to claim 4, it is special
Levy and be：Second copper nut (9) uses HPb59-1 brass to be finish-machined to nut of the specification for G1/2, and surface carries out nickel plating
Processing, wear resistant corrosion resistant.
6. a kind of corrugated stainless steel tubing, it is assembled according to the assemble method described in claim 1, including：First copper nut
(1), cone seal packing ring (2), male connection (3), short steel bushing (4), bellows (5), coating (6), long steel bushing (7), flat
Pad sealing ring (8) and the second copper nut (9)；First copper nut (1) is in outer-hexagonal nut shape, connecting pipe interface and institute
Male connection (3) is stated, its one end for connecting the male connection (3) has internal thread；Described male connection (3) one end
Barrel there is the external screw thread that is engaged with the internal thread of first copper nut (1)；The cone seal packing ring (2) is set
Between first copper nut (1) and the male connection (3)；The smaller diameter end of the short steel bushing (4) and the outer spiral shell
The other end of line joint (3) is slidably connected；The smaller diameter end of the long steel bushing (7) and one end of second copper nut (9) are slided
Dynamic connection, and length of the length more than the smaller diameter end of the short steel bushing (4) of the smaller diameter end of the long steel bushing (7)；It is described
The tubular boss of second copper nut (9) is located at one end of second copper nut (9) and the long steel bushing that is slidably located in
(7) in smaller diameter end, the other end of second copper nut (9) has internal thread, for connecting another pipe joint；Institute
State flat gasket circle (8) and be arranged on the second copper nut (9) inside.
7. a kind of corrugated stainless steel tubing according to claim 6, it is characterised in that：The stepped openings of the bellows (5)
Section is arranged between the cone seal packing ring (2) and the male connection (3)；The bellows (5) it is radially projecting
Flange is arranged between second copper nut (9) and the flat gasket circle (8).
8. a kind of corrugated stainless steel tubing according to claim 7, it is characterised in that：The cone seal packing ring (2) is disconnected
Face is in the annular seal packing ring of isosceles trapezoid；The flat gasket circle (8) is the rectangular U-shaped seal washer of section.
9. a kind of corrugated stainless steel tubing according to claim 8, it is characterised in that：The inside of first copper nut (1)
With the first shape counterface coordinated with the cone seal packing ring (2), and the shape counterface connects first bronze medal
The inwall of two different inner diameters of nut (1)；The tubular one end of the male connection (3) has and the conical seal ring
(2) faying face that shape coordinates；Being coordinated using the screw thread of first copper nut (1) and the male connection (3) makes the cone
Shape sealing ring (2) produces elastic deformation, its sealing is fixed on Green's interface of pipeline.
10. a kind of corrugated stainless steel tubing according to claim 9, it is characterised in that：The inside of second copper nut (9)
The the second shape counterface coordinated with the radially projecting flange shape with the bellows (5), and the second shape abutting end
Face connects the inwall of two different inner diameters of second copper nut (9)；The radially projecting flange of the bellows (5) it is another
One surface coordinates with the flat gasket circle (8)；Second copper nut (9) is connected using the hickey of internal thread and pipeline, and
Make the flat gasket circle (8) produce elasticity using the radially projecting flange of the hickey and the bellows (5) to become
Shape reaches sealing effectiveness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610021576.5A CN105465507B (en) | 2016-01-14 | 2016-01-14 | A kind of compression type corrugated stainless steel tubing and its assemble method for gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610021576.5A CN105465507B (en) | 2016-01-14 | 2016-01-14 | A kind of compression type corrugated stainless steel tubing and its assemble method for gas pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105465507A CN105465507A (en) | 2016-04-06 |
| CN105465507B true CN105465507B (en) | 2017-09-29 |
Family
ID=55603518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610021576.5A Expired - Fee Related CN105465507B (en) | 2016-01-14 | 2016-01-14 | A kind of compression type corrugated stainless steel tubing and its assemble method for gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105465507B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108317319A (en) * | 2018-04-04 | 2018-07-24 | 南京知行管业有限公司 | A kind of corrugated flexible hose fastener |
| CN110542121A (en) * | 2018-05-29 | 2019-12-06 | 青岛海尔智慧厨房电器有限公司 | Connection structure and gas-cooker |
| CN110230741B (en) * | 2019-07-11 | 2023-08-22 | 芜湖泰和管业股份有限公司 | Stainless steel corrugated pipe hard sealing joint unit and corrugated pipe applying same |
| CN111185755B (en) * | 2020-01-22 | 2020-09-29 | 温州职业技术学院 | Gas pipeline assembly assembling equipment |
| CN111396655B (en) * | 2020-03-18 | 2024-09-03 | 北京市自来水集团禹通市政工程有限公司 | Quick-acting adapter |
| CN111457173B (en) * | 2020-05-25 | 2021-11-16 | 重庆共启科技有限公司 | Compression type stainless steel corrugated pipe for gas pipeline and assembling method thereof |
| CN113714685B (en) * | 2021-07-27 | 2023-05-02 | 常州市镭烁光电科技有限公司 | Corrugated pipe welding device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB854116A (en) * | 1957-10-01 | 1960-11-16 | Bendix Corp | Flexible conduit members |
| GB868343A (en) * | 1959-07-01 | 1961-05-17 | Power Flexible Tubing Company | Improvements relating to end unions for corrugated metallic tubing having an outer braided covering |
| DE3445662A1 (en) * | 1984-12-14 | 1986-06-19 | Albert Speck KG Kieselbronn, 7530 Pforzheim | Connecting sleeve on a metal-ring corrugated hose |
| CN202708417U (en) * | 2012-06-21 | 2013-01-30 | 宁波市狮山管业有限公司 | Stainless steel corrugated pipe for gas |
| CN204004893U (en) * | 2014-07-18 | 2014-12-10 | 宁波忻杰燃气用具实业有限公司 | Gas appliance connects with stainless steel ripple flexible pipe |
-
2016
- 2016-01-14 CN CN201610021576.5A patent/CN105465507B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB854116A (en) * | 1957-10-01 | 1960-11-16 | Bendix Corp | Flexible conduit members |
| GB868343A (en) * | 1959-07-01 | 1961-05-17 | Power Flexible Tubing Company | Improvements relating to end unions for corrugated metallic tubing having an outer braided covering |
| DE3445662A1 (en) * | 1984-12-14 | 1986-06-19 | Albert Speck KG Kieselbronn, 7530 Pforzheim | Connecting sleeve on a metal-ring corrugated hose |
| CN202708417U (en) * | 2012-06-21 | 2013-01-30 | 宁波市狮山管业有限公司 | Stainless steel corrugated pipe for gas |
| CN204004893U (en) * | 2014-07-18 | 2014-12-10 | 宁波忻杰燃气用具实业有限公司 | Gas appliance connects with stainless steel ripple flexible pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105465507A (en) | 2016-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105465507B (en) | A kind of compression type corrugated stainless steel tubing and its assemble method for gas pipeline | |
| US6857668B2 (en) | Replaceable corrosion seal for threaded connections | |
| EP2029927B1 (en) | Sealing device with ridges for corrugated stainless steel tubing | |
| CN204533920U (en) | A kind of bellows selfsealings positive mechanical formula clamp sleeve | |
| CN201779381U (en) | Gas delivering stainless steel corrugated hose joint component with leakage detection function | |
| CN105171349A (en) | Preparation method for hydraulic pressure composite thermometal oil pipe | |
| CN104390079A (en) | Lip seal welding type pipe fitting joint and mounting process thereof | |
| SA96170495A (en) | Threaded joint for metal tubes with internal coating | |
| CN110130839A (en) | A kind of ring seal structure of coupling | |
| CN205479804U (en) | Nonrust corrugated steel pipe is used in gas appliance connection that is suitable for multiple pipeline interface | |
| CN205504232U (en) | A mechanically compress tightly nonrust corrugated steel pipe of formula for gas pipeline | |
| CN208535389U (en) | A kind of pipeline quick-make connector for repairing of speedily carrying out rescue work | |
| CN109458516A (en) | A kind of compound pipeline complex pipeline field repair component and operating method | |
| CN212004658U (en) | T-shaped double-sealing double-receiving-head structure for rolling large-diameter steel pipe | |
| CN104455871B (en) | A kind of three-limb tube part | |
| CN209622303U (en) | Gas piping double containment copper alloy plug component | |
| CN114251530A (en) | Quick-insertion type pipe joint | |
| CN208634593U (en) | A kind of gas metal pipe | |
| CN208237267U (en) | The Hermetical connecting structure of thin walled hard metal circular tube | |
| CN204420410U (en) | A kind of bellows positive mechanical formula clamp sleeve | |
| CN112413250A (en) | Pipeline connecting structure | |
| CN102141179B (en) | Electric hot-melt fastening type pipe fitting | |
| CN205503031U (en) | Adapter sleeve for oil drilling | |
| CN205956585U (en) | Anticorrosive repaired mouth structure of exempting from in spiral weld pipe | |
| CN112824727A (en) | Bimetal composite pipe threaded joint and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170929 Termination date: 20220114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |