CN207906649U - A kind of durable plastics lined pipe - Google Patents
A kind of durable plastics lined pipe Download PDFInfo
- Publication number
- CN207906649U CN207906649U CN201820187355.XU CN201820187355U CN207906649U CN 207906649 U CN207906649 U CN 207906649U CN 201820187355 U CN201820187355 U CN 201820187355U CN 207906649 U CN207906649 U CN 207906649U
- Authority
- CN
- China
- Prior art keywords
- plastic tube
- pipe
- connector
- tube
- plastics lined
- 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
- 239000004033 plastic Substances 0.000 title claims abstract description 150
- 229920003023 plastic Polymers 0.000 title claims abstract description 150
- 239000002184 metal Substances 0.000 claims abstract description 60
- 229910052751 metal Inorganic materials 0.000 claims abstract description 60
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 3
- 230000001788 irregular Effects 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
A kind of durable plastics lined pipe, including metal tube and inner lining plastic tube.Compared with prior art, the plastic inner pipe of the utility model plastics lined pipe is sealedly attached to by rough surface and sealing ring in metal outer pipe；Adjacent plastics lined pipe is connected by straight pipe or joint sealing, adjacent plastics lined pipe and connecting component are further fastened by anchor ear, the simple installation of plastics lined pipe is easy, between interior plastic tube and outer metal tube, it is completely embedded between adjacent plastics lined pipe, inner lining plastic tube with outer metal tube because being completely embedded, in the conveying medium larger with circumstance of temperature difference, greatly promote the service life of plastics lined pipe, save the production cost of pharmaceutical factory, improve productivity effect, and it easily replaces, assembling is flexible, pharmacy producer can adjust the length of plastics lined pipe according to actual needs, the material of metal tube and plastic tube.
Description
Technical field
The utility model is related to a kind of improved plastics lined pipes, more particularly to can effectively avoid inner lining plastic tube arch camber deform or
The plastics lined pipe of drawing crack damage.
Background technology
The bulk pharmaceutical chemicals workshop of pharmaceutical factory conveys material usually using plastics lined pipe, contains corrosive gas or liquid in material,
In the conveying medium larger with circumstance of temperature difference, since inner lining plastic tube differs larger with the expansion of the line of outside steel pipe, cause interior
Lining plastic expects pipe axial stretching is far longer than outside steel pipe, and inner lining plastic tube is easy arch camber deformation or drawing crack caused by expansion or shrinkage
Damage, will appear pipeline blocks phenomenon to production of raw medicine in the process, and more severe patient is to generate drawing crack when inner lining plastic tube is shunk
Easily cause to reveal afterwards, corrosion steel pipe damages, and a large amount of economic loss is caused to pharmaceutical factory.Therefore, there is an urgent need for design one kind to have
Effect avoids the plastics lined pipe that inner lining plastic tube arch camber deformation or drawing crack damage.
Invention content
In view of this, the utility model is directed to the defect of existing plastics lined pipe, a kind of improved plastics lined pipe is provided, it can be effective
Inner lining plastic tube arch camber deformation or drawing crack is avoided to damage, tube body can adapt to a variety of tube body environment, and durability is good, service life
It is long, significantly reduce piping foundation frequency.
To achieve the above object, the utility model adopts the following technical solution：
A kind of improved plastics lined pipe, including metal tube and inner lining plastic tube, the caliber of the inner lining plastic tube are slightly less than gold
Belong to the caliber of outer tube, inner lining plastic tube is placed in metal tube body, is wherein tightly connected between metal tube and inner lining plastic tube, phase
It is tightly connected between adjacent plastics lined pipe.
Further, there is the plastic tube rough external surface, the metal tube to have rough inner-surface；Preferably,
There is the plastics pipe internal surface regular shape or irregular groove, the metal pipe internal surface to have matching shape
Regular or irregular protrusion；It is further preferred that sealing ring is set between the plastic tube and metal tube, the sealing ring
Internal and external cycle all has dentation, increases the elastic deformability of sealing ring, close between plastic tube and metal tube to further increase
Seal effect.
Further, the end of the plastic tube forms annular flange and is coated on the end of the metal tube, the first modeling
It is tightly connected by straight pipe between expects pipe and the second plastic tube, described straight pipe one end and the end welding of the first plastic tube connect
It connects, the other end of the straight pipe and the end of the second plastic tube are welded to connect.
The length of the plastic tube is more than the length of the metal tube, and the plastics length of tube is more than the metal pipe portion
Point outer surface be in shape of threads, connected by joint sealing between the first plastic tube and the second plastic tube, the connector includes the
One connector, the second connector, fastener and sealing element；The fastener is with female nut, the first connector right end
With the structure being connected with pipeline, for left end tool there are one external annulus, the outer surface of the external annulus is machined with external screw thread, and described the
The external screw thread of one connector is meshed with the internal thread of the fastener；The left part of the fastener has spacing ring, and second connects
Head includes the annulus that right part has spacing ring, and the left part of first connector has groove, and the sealing element is embedded in recessed
In slot, sealing element is preferably round section joint ring, and the spacing ring of second connector and the spacing ring of the fastener abut against, and second
The right part of connector is abutted with the left part of the first connector；The position of first connector or the second connector connection plastic tube can be socket joint
Welding is threadedly coupled, and when for socket weld, the inner wall that connector connects the position of plastic tube is smooth；When for be threadedly coupled
When, the position inner wall that connector connects plastic tube is shape of threads.
In use, first fastener is sleeved on the second connector, make the spacing ring and the second connector right end of fastener left end
Spacing ring offsets, and round section joint ring is embedded in the groove of the first connector, and the external screw thread of the first connector external annulus is torqued-up to tightly
On the internal thread of firmware, the right part of the second connector is abutted with the left part of the first connector.Plastic tube is connect with two respectively again
Head socket weld or threaded connection.
It is additionally provided with limited block on the plastic tube, which is set to the end of metal tube, is connected on plastic tube,
Not only it can prevent from accessing metal tube in connector, but also the inner cavity that can prevent plastic tube from leaving metal tube.
Further, it is fastenedly connected by anchor ear between the adjacent plastics lined pipe, first plastic tube and described
After two plastic tubes are tightly connected, the anchor ear is connection formation after upper and lower two half anchor ear pairing, and upper and lower two half anchor ear is equal
In semi-annular shape, the outward bending of semicircular ring both ends respectively forms an erection joint, the erection joint of upper half anchor ear one end and phase
The connection of erection joint pairing and bolt fastening of the lower half anchor ear one end answered, the adjacent lining of junction contacts of the semicircular ring anchor ear
On the outer metal tube for moulding pipe, the semicircular inner walls of the anchor ear are equipped with elastic spacing block, which is connected to adjacent
In the connecting component of plastics lined pipe, plastics lined pipe is further fastened.
Further, the metal tube can be one kind in stainless steel tube, coating steel pipe, copper pipe；The plastic tube can be
One kind in PP, PVC, PE.
Compared with prior art, the plastic inner pipe of the utility model plastics lined pipe is sealedly attached to by rough surface and sealing ring
In metal outer pipe；Adjacent plastics lined pipe is connected by straight pipe or joint sealing, and adjacent lining plastic is further fastened by anchor ear
The simple installation of pipe and connecting component, plastics lined pipe is easy, and is connected between the plastics lined pipe between interior plastic tube and outer metal tube, adjacent
Closely, inner lining plastic tube, in the conveying medium larger with circumstance of temperature difference, greatly promotes lining plastic because being completely embedded with outer metal tube
The service life of pipe saves the production cost of pharmaceutical factory, improves productivity effect, and easily replace, assembling is flexible, and pharmacy producer can root
According to the length of actual needs adjustment plastics lined pipe, the material of metal tube and plastic tube.
Description of the drawings
Fig. 1 is the structure chart of one embodiment plastics lined pipe of the utility model；
Fig. 2 is the part-structure figure of another embodiment plastics lined pipe of the utility model；
Fig. 3 is the structure chart of the utility model anchor ear；
Fig. 4 is the structure chart of the utility model loose joint.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the utility model is described further, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between a technical characteristic new
Embodiment.
As described in Fig. 1, Fig. 3, an embodiment of the utility model, a kind of improved plastics lined pipe, including metal tube 1 and liner
Plastic tube 2, the caliber of the inner lining plastic tube 2 are slightly less than the caliber of metal outer pipe 1, and inner lining plastic tube 2 is placed in 1 tube body of metal tube
It is interior, it is wherein tightly connected between metal tube 1 and inner lining plastic tube 2, is tightly connected between adjacent plastics lined pipe.
There is the plastic tube 2 rough external surface, the metal tube 1 to have rough inner-surface；Preferably, the plastics
2 inner surface of pipe has regular shape or an irregular groove, 1 inner surface of the metal tube have matching regular shape or
Irregular protrusion；It is further preferred that sealing ring is arranged between the plastic tube 2 and metal tube 1（Diagram is not shown）, described
The Internal and external cycle of sealing ring all has dentation, increases the elastic deformability of sealing ring, to further increase plastic tube and metal tube
Between sealing effect.
The end of the plastic tube 2 forms annular flange and is coated on the end of the metal tube, the first plastic tube and
It is tightly connected by straight pipe 3 between two plastic tubes, 3 one end of the straight pipe and the end of the first plastic tube are welded to connect, institute
The end for stating the other end and the second plastic tube of straight pipe 3 is welded to connect.
It is fastenedly connected by anchor ear between the adjacent plastics lined pipe, first plastic tube and second plastic tube are close
After envelope connection, the anchor ear is connection formation after upper and lower two half anchor ear 41,42 pairings, and upper and lower two half anchor ear 41,42 is equal
In semi-annular shape, the outward bending of semicircular ring both ends respectively forms an erection joint, the erection joint of upper 41 one end of half anchor ear with
The connection of erection joint pairing and bolt fastening of corresponding lower 42 one end of half anchor ear, the junction contacts phase of the semicircular ring anchor ear
On the outer metal tube of adjacent plastics lined pipe, the semicircular inner walls of the anchor ear are equipped with elastic spacing block 5, which abuts
In in the connecting component of adjacent plastics lined pipe, the elastic spacing block 5 can be multiple, further to fasten plastics lined pipe.
As described in Fig. 2, Fig. 3, Fig. 4, another embodiment of the utility model, a kind of improved plastics lined pipe, including metal tube 1
With inner lining plastic tube 2, the caliber of the inner lining plastic tube 2 is slightly less than the caliber of metal outer pipe 1, and inner lining plastic tube 2 is placed in metal
In 1 tube body of pipe, wherein it is tightly connected between metal tube 1 and inner lining plastic tube 2, is tightly connected between adjacent plastics lined pipe.
There is the plastic tube 2 rough external surface, the metal tube 1 to have rough inner-surface；Preferably, the plastics
2 inner surface of pipe has regular shape or an irregular groove, 1 inner surface of the metal tube have matching regular shape or
Irregular protrusion；It is further preferred that sealing ring is arranged between the plastic tube 2 and metal tube 1（Diagram is not shown）, described
The Internal and external cycle of sealing ring all has dentation, increases the elastic deformability of sealing ring, to further increase plastic tube and metal tube
Between sealing effect.
The length of the plastic tube 2 is more than the length of the metal tube 1, and 2 length of the plastic tube is more than the metal
The outer surface of 1 part of pipe is in shape of threads, is connected by joint sealing between the first plastic tube and the second plastic tube, the connector packet
Include the first connector 61, the second connector 62, fastener 63 and sealing element（Diagram is not shown）；The fastener 63 is with internal thread
Nut, 61 right end of the first connector has the structure that is connected with pipeline, there are one left end tools external annulus, the external annulus
Outer surface is machined with external screw thread, and the external screw thread of first connector 61 is meshed with the internal thread of the fastener 63；It is described tight
It includes the annulus that right part has spacing ring, first connector 61 that the left part of firmware 63, which has spacing ring, the second connector 62,
Left part there is groove, the sealing element is embedded in groove, and sealing element is preferably round section joint ring, second connector 52
The spacing ring of spacing ring and the fastener 63 abuts against, and the right part of the second connector 62 and the left part of the first connector 61 are supported
It connects；The position of first connector 61 or the second connector 62 connection plastic tube can be socket weld or threaded connection, when for socket weld
When, the inner wall that connector connects the position of plastic tube is smooth；When to be threadedly coupled, connector connects the position inner wall of plastic tube
For shape of threads.
In use, first fastener is sleeved on the second connector, make the spacing ring and the second connector right end of fastener left end
Spacing ring offsets, and round section joint ring is embedded in the groove of the first connector, and the external screw thread of the first connector external annulus is torqued-up to tightly
On the internal thread of firmware, the right part of the second connector is abutted with the left part of the first connector.Plastic tube is connect with two respectively again
Head socket weld or threaded connection.
It is additionally provided with limited block on the plastic tube 2（Diagram is not shown）, which is set to the end of metal tube 1,
It is connected on plastic tube 2, can not only prevent from accessing metal tube 1 in connector, but also the inner cavity that can prevent plastic tube from leaving metal tube.
It is fastenedly connected by anchor ear between the adjacent plastics lined pipe, first plastic tube and second plastic tube are close
After envelope connection, the anchor ear is connection formation after upper and lower two half anchor ear 41,42 pairings, and upper and lower two half anchor ear 41,42 is equal
In semi-annular shape, the outward bending of semicircular ring both ends respectively forms an erection joint, the erection joint of upper 41 one end of half anchor ear with
The connection of erection joint pairing and bolt fastening of corresponding lower 42 one end of half anchor ear, the junction contacts phase of the semicircular ring anchor ear
On the outer metal tube of adjacent plastics lined pipe, the semicircular inner walls of the anchor ear are equipped with elastic spacing block 5, which abuts
In in the connecting component of adjacent plastics lined pipe, the elastic spacing block 5 can be multiple, further to fasten plastics lined pipe.
Claims (4)
1. a kind of plastics lined pipe, including metal tube and inner lining plastic tube, the caliber of the inner lining plastic tube are slightly less than metal outer pipe
Caliber, inner lining plastic tube are placed in metal tube body, it is characterised in that：It is sealed between the metal tube and the inner lining plastic tube
It connects, is tightly connected between adjacent plastics lined pipe；There is the plastic tube rough external surface, the metal tube to have coarse interior table
There is the rough external surface in face, the plastic tube regular shape or irregular groove, the metal tube rough inner-surface to have
Sealing ring, the sealing ring is arranged in matching regular shape or irregular protrusion between the plastic tube and metal tube
Internal and external cycle all have dentation.
2. according to the plastics lined pipe described in claim 1, it is further characterized in that：The end of the plastic tube formed annular flange and
It is coated on the end of the metal tube, is tightly connected by straight pipe between the first plastic tube and the second plastic tube, it is described straight-through
Pipe one end and the end of the first plastic tube are welded to connect, and the end welding of the other end of the straight pipe and the second plastic tube connects
It connects.
3. according to the plastics lined pipe described in claim 1, it is further characterized in that：The length of the plastic tube is more than the metal tube
Length, and the plastics length of tube be more than the metallic pipe portions outer surface be in shape of threads, the first plastic tube and second modeling
It is connected by joint sealing between expects pipe, the connector includes the first connector, the second connector, fastener and sealing element；It is described tight
Firmware is with female nut, and the first connector right end has the structure being connected with pipeline, and there are one outer shrouds for left end tool
The outer surface of wall, the external annulus is machined with external screw thread, the external screw thread of first connector and the internal thread phase of the fastener
Engagement；The left part of the fastener have spacing ring, the second connector include right part have spacing ring annulus, described first
There is groove, the sealing element to be embedded in groove for the left part of connector, and the sealing element is round section joint ring, second connector
Spacing ring
It is abutted against with the spacing ring of the fastener, the right part of the second connector is abutted with the left part of the first connector；First connects
The position of head or the second connector connection plastic tube can be socket weld or threaded connection, when for socket weld, connector connection modeling
The inner wall at the position of expects pipe is smooth；When to be threadedly coupled, the position inner wall that connector connects plastic tube is shape of threads；It is described
Limited block is additionally provided on plastic tube, which is set to the end of metal tube, is connected on plastic tube, and can both prevent will be golden
Belong in pipe access connector, and can prevent plastic tube from leaving the inner cavity of metal tube.
4. the plastics lined pipe according to claim 2 or 3, it is further characterized in that：By embracing between the adjacent plastics lined pipe
Banding is solidly connected, and after first plastic tube and second plastic tube sealed connection, the anchor ear is upper and lower two half anchor ear
Couple after pairing and formed, upper and lower two half anchor ear is in semi-annular shape, and the outward bending of semicircular ring both ends is each to form an installation
Connector, simultaneously bolt is tight with the erection joint pairing connection of corresponding lower half anchor ear one end for the erection joint of upper half anchor ear one end
Gu on the outer metal tube of the adjacent plastics lined pipe of junction contacts of the semicircular ring anchor ear, the semicircular inner walls of the anchor ear are equipped with
Elastic spacing block, the elastic spacing block are connected in the connecting component of adjacent plastics lined pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820187355.XU CN207906649U (en) | 2018-02-05 | 2018-02-05 | A kind of durable plastics lined pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820187355.XU CN207906649U (en) | 2018-02-05 | 2018-02-05 | A kind of durable plastics lined pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207906649U true CN207906649U (en) | 2018-09-25 |
Family
ID=63562002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820187355.XU Expired - Fee Related CN207906649U (en) | 2018-02-05 | 2018-02-05 | A kind of durable plastics lined pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207906649U (en) |
-
2018
- 2018-02-05 CN CN201820187355.XU patent/CN207906649U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 |