CN109707928A - Metallic conduit snap ring-type connection structure - Google Patents
Metallic conduit snap ring-type connection structure Download PDFInfo
- Publication number
- CN109707928A CN109707928A CN201711022022.8A CN201711022022A CN109707928A CN 109707928 A CN109707928 A CN 109707928A CN 201711022022 A CN201711022022 A CN 201711022022A CN 109707928 A CN109707928 A CN 109707928A
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- clasp
- metal tube
- snap ring
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 78
- 239000002184 metal Substances 0.000 claims abstract description 78
- 238000007789 sealing Methods 0.000 claims abstract description 58
- 238000002788 crimping Methods 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- 229920006351 engineering plastic Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000007747 plating Methods 0.000 claims 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 8
- 239000010962 carbon steel Substances 0.000 description 8
- 230000006378 damage Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- -1 for example Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
-
- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/03—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
-
- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/08—Joints with sleeve or socket with additional locking means
Abstract
The present invention provides a kind of metallic conduit snap ring-type connection structure comprising: clasp pipe fitting, at least provided with seal groove and annular groove on female end inner peripheral surface, the annular groove is located at the axially external of the seal groove；Sealing ring is arranged in the seal groove；Guide collar, is arranged in annular groove and is located at the axially external of sealing ring, and the internal diameter of guide collar is less than the internal diameter of sealing ring and is greater than the outer diameter of metal tube；And metal clasp, it is in tool ring-type jaggy, to be arranged in annular groove and be located at the axially external of guide collar, wherein when metal tube is inserted into the bellmouth of clasp pipe fitting in place, the seal groove of clasp pipe fitting is compressed using crimping tool and annular groove is allowed to deform, to make metal tube corresponding deformation by the tightening of snap ring deformation, the sealed connection between metal tube clasp pipe fitting is realized from there through sealing ring.
Description
Technical field
The present invention relates to metallic conduit connection structure more particularly to metallic conduit snap ring-type connection structures.
Background technique
In building field and industrial circle, fluid-transporting tubing is often used.Traditional fluid-transporting tubing is by pipe fitting
It is formed by connecting, threaded connection is generallyd use between pipe fitting, to form various pipe-line systems.A kind of pipe fitting as maturation connects
Mode is connect, the installation effectiveness of threaded connection is not high, and has certain requirement to working space, also to solve to prevent junction from leaking
A series of problems, such as.
For this purpose, gradually developing card lifting pressing type metal pipe fitting connection structure in recent years.It uses thin metallic tubd to design, and utilizes
Specific purpose tool crimping deforms thin-walled, so that pipe fitting connection moment be made to complete.As shown in Figure 1A, in cartridge connection cross-sectional view,
Crimping tool for being crimped simultaneously at socket section M and seal groove N two, compressed by sealing groove location, is forced O-shaped in slot
Sealing ring is close to steel pipe, plays the role of hermetic seal, and socket section M is squeezed and deformed by hexagonal card pressure, steel pipe and pipe fitting, utilizes
The rigidity of metal material itself, plays the role of anti-pulling.
This structure construction is simple, and the operating time is short, the non-threaded connection of connector, the mantle fiber operation of no complexity, and no high temperature is bright
Fire, front and back processing when welding, oily pollution or welding slag pollution when no construction cutting or linking.
In clamp-press type metal tube connection structure, key can be made of various metal materials, for example, stainless steel,
Copper, carbon steel tubing etc..Pipe-line system is being had certain requirements (for example, in the fire-fighting spraying pipeline system of building to corrosion resistance
System) in, it can be using more stainless steel pipe or copper pipe fitting, but this also results in the raising of material cost.Therefore, current
Cartridge connection pipeline in, more still continued to use the zinc-plated thin-wall tube of carbon steel material, connection type still uses clamp-press type,
To obtain than using higher cost performance on stainless steel tube and copper pipe.
However, it is very big to use zinc-plated carbon steel pipe to have the defects that in clamp-press type metal tube connection structure.Figure 1B is shown
The enlarged drawing of the position B of the clamp-press type metal tube connection structure of Figure 1A.As shown in Figure 1B, holding due to clamp-press type pipe 91
Mouth section M is caused the outer wall and card pressure of zinc-plated carbon steel pipe 92 by hexagonal card pressure, zinc-plated carbon steel pipe 92 and the deformation of pipe fitting friction and Extrusion
The zinc coat of the inner wall of formula pipe fitting 91 is destroyed, and the water flow F in pipeline is flowed by being intubated in gap, and hexagonal of going directly is squeezed and deformed
Position, the zinc coat of the inner wall of zinc-plated carbon steel pipe 92 and clamp-press type pipe 91 has been destroyed at this time, carbon steel pipe and clamp-press type pipe
Part is etched oxidation under the action of water flow, so that the service life of pipeline will have a greatly reduced quality.
In addition, insertion end is easy to cause rubber seal during metal tube is inserted into clamp-press type metal tube
Damage or displacement, are caused poorly sealed.
Being disclosed in the information of background parts of the present invention, it is only intended to increase understanding of the overall background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The object of the present invention is to provide a kind of metallic conduit snap ring-type connection structures, are able to solve existing zinc-plated carbon steel
The defect that corrosion resistance reduces in pipe connecting structure.
A further object of the present invention is to provide a kind of metallic conduit snap ring-type connection structure, can prevent in metal tube
The part insertion connection structure of damage during to(for) sealing ring.
The present invention provides a kind of metallic conduit snap ring-type connection structure comprising: clasp pipe fitting, female end inner peripheral surface
On at least provided with seal groove and annular groove, the annular groove is located at the axially external of the seal groove；Sealing ring is arranged in institute
It states in seal groove；Guide collar is arranged in annular groove and is located at the axially external of sealing ring, and the internal diameter of the guide collar is less than
The internal diameter of sealing ring and the outer diameter for being greater than metal tube；And metal clasp, in having ring-type jaggy, to be arranged in snap ring
In slot and it is located at the axially external of guide collar, wherein utilizing crimping work when metal tube is inserted into the bellmouth of clasp pipe fitting in place
Tool compresses the seal groove of clasp pipe fitting and annular groove is allowed to deform, so that the tightening deformation by snap ring strains metal tube mutually
Shape realizes the sealed connection between metal tube clasp pipe fitting from there through sealing ring.
In above-mentioned metallic conduit snap ring-type connection structure, it is preferable that can also include being arranged in annular groove and being located at
Guide collar between sealing ring and snap ring, the internal diameter of the guide collar are less than the internal diameter of sealing ring and are greater than the outer diameter of metal tube.
It is further preferred that the guide collar is made of polyethylene.
In above-mentioned metallic conduit snap ring-type connection structure, it is preferable that further include that the axially external antiseepage of snap ring is set
Ring, thus when clasp pipe fitting is compacted from the sealing between axially external realization clasp pipe fitting and metal tube.Further
Preferably, the cutoff collar is made of engineering plastics.
In above-mentioned metallic conduit snap ring-type connection structure, it is preferable that the metal tube is galvanized pipe.
In above-mentioned metallic conduit snap ring-type connection structure, it is preferable that the inner band of the metal clasp has dentalation.
In above-mentioned metallic conduit snap ring-type connection structure, it is preferable that the tapered face of the inner peripheral surface of the metal clasp.
In above-mentioned metallic conduit snap ring-type connection structure, it is preferable that the width of the cross section of the sealing ring is greater than height
Degree.It is further preferred that the non-circular cross-section of the cross section of the sealing ring.
The present invention also provides a kind of metallic conduit snap ring-type connection structures comprising: clasp pipe fitting, female end are equipped with
Seal groove and annular groove；Sealing ring is arranged in the seal groove；Snap ring, in having ring-type jaggy, so that setting exists
In annular groove and it is convenient for compressive deformation；And guide collar, it is arranged in annular groove, the internal diameter of the guide collar is less than sealing ring
Internal diameter and be greater than metal tube outer diameter, wherein when metal tube insertion clasp pipe fitting bellmouth in place when, utilize crimping tool
The seal groove and annular groove for compressing clasp pipe fitting are allowed to deform, to realize that the sealing between metal tube clasp pipe fitting connects
It connects.
The present invention also provides a kind of metallic conduit snap ring-type connection structures comprising: clasp pipe fitting, female end are equipped with
Seal groove and annular groove；Sealing ring is arranged in the seal groove；Metal clasp, in having ring-type jaggy, to set
It sets in annular groove and convenient for compressive deformation；And cutoff collar, in the bellmouth of clasp pipe fitting setting the axially outermost,
The diameter of the cutoff collar is less than the diameter of sealing ring and is slightly larger than the diameter of metal tube, thus when clasp pipe fitting is compacted
Sealing between axially external realization clasp pipe fitting and metal tube.
By above structure, the present invention can be reached in the fluid penetrated between clasp pipe fitting and the metal tube of insertion
Zinc coat is just stopped by sealing ring before impaired place, because being tied to improve entire connection without corroding caused by metal tube
The service life of structure.
In addition, the present invention can prevent right during metal tube is inserted into connection structure by the setting of guide collar
In the damage of sealing ring.
Methods and apparatus of the present invention has additional features and advantages, these characteristics and advantages are attached from what is be incorporated herein
It will be apparent in figure and subsequent specific embodiment, or will be in the attached drawing being incorporated herein and subsequent specific reality
It applies in mode and is stated in detail, the drawings and the detailed description together serve to explain specific principles of the invention.
Detailed description of the invention
Figure 1A is the schematic diagram of clamp-press type metal tube connection structure in the prior art.
Figure 1B shows the enlarged drawing of the position B of the clamp-press type metal tube connection structure of Figure 1A.
Fig. 2 is the clasp pipe fitting construction half-section diagram of metallic conduit snap ring-type connection structure of the invention.
Fig. 3 is the half-section diagram of metallic conduit snap ring-type connection structure of the invention, wherein the inside of clasp pipe fitting
It has been mounted with sealing ring, guide collar, snap ring, cutoff collar, has been assembled but without with metal tube.
Fig. 4 is the cut-away view of metallic conduit snap ring-type connection structure of the invention, and wherein the inside of clasp pipe fitting has been
It is mounted with sealing ring, guide collar, snap ring, cutoff collar, and inserts metal tube, and carried out crimping assembly.
Fig. 5 shows the enlarged drawing of the position A of the metal tube snap ring-type connection structure of Fig. 4.
Fig. 6 shows circular ring type snap ring of the invention, and wherein right part of flg is the cross-sectional view of left hand view.
Fig. 7 shows ring gear formula snap ring of the invention.
It is to be appreciated that attached drawing is not necessarily drawn to scale, it illustrates in a way by the sheet that simplifies
Each feature of the basic principle of invention.Specific design feature of the invention disclosed herein, including for example specific ruler
Very little, orientation, positioning and shape, will partly be determined by the application of specific purpose and use environment.
In attached drawing of the invention, in several figures through attached drawing, appended drawing reference is referred to of the invention identical or is waited
The part of effect.
Specific embodiment
It specific reference will be made to each embodiment of the invention now, show these implementations in the drawings and the following description
The example of example.Although the present invention is combined with exemplary embodiment and is described, it will be understood that this specification is not intended to
Limit the invention to those exemplary embodiments.On the contrary, the present invention is directed to not only cover these exemplary embodiments, and cover
Lid can be included in it is within the spirit and scope of the present invention being defined by the appended claims it is various replacement, modification, etc.
Effect form and other embodiments.
As shown in Fig. 2, one end of the clasp pipe fitting 1 of metallic conduit snap ring-type connection structure of the invention has bellmouth,
To be inserted into wanted metal tube.The bellmouth of clasp pipe fitting 1 is successively arranged seal groove 2 and annular groove 3 from inside to outside.Seal groove 2
It is greater than the internal diameter of 1 other parts of clasp pipe fitting, with the internal diameter of annular groove 3 to accommodate rubber seal and snap ring.Institute in figure
The clasp pipe fitting 1 shown is integrally formed.
Fig. 3 is the half-section diagram of metallic conduit snap ring-type connection structure of the invention.As shown in Fig. 3, clasp pipe fitting
Be mounted with sealing ring 4, guide collar 5, snap ring 6 and cutoff collar 8 in 1 seal groove 2 and annular groove 3, but without with metal
Pipe is assembled.
Here, guide collar 5 is not required.Guide collar 5 is in circular ring shape, internal diameter be less than the internal diameter of sealing ring 4 and big
In the outer diameter for the metal tube 7 being inserted into.
Fig. 4 is the cut-away view of metallic conduit snap ring-type connection structure of the invention.Fig. 5 shows the snap ring-type metal of Fig. 4
The enlarged drawing of the position A of pipe fitting joint structure.As shown in Figure 4, Figure 5, in the seal groove 2 and annular groove 3 of clasp pipe fitting 1
It is successively mounted with sealing ring 4, guide collar 5, snap ring 6 and cutoff collar 8, and inserts metal tube 7, and carried out crimping assembly.
Here, guide collar 5 has 7 centering of metal tube for facilitating guidance insertion, sealing ring 4 is avoided damage to or moves, from
And better ensure that the effect of sealing.For this purpose, the internal diameter of guide collar 5 is less than the internal diameter of sealing ring 4 and is greater than the outer of metal tube 7
Diameter is achieved in the guiding function being inserted into for metal tube 7.
Guide collar 5 can be made of any suitable material, if it can satisfy strength and toughness and corrosion-resistant requirement, and
Enough deformations are generated when compression without being destroyed.It is preferred that using engineering plastics, such as polyethylene etc..
Cutoff collar 8 is not required.Cutoff collar 8 is in circular ring shape, and axial direction in the bellmouth of clasp pipe fitting 1 is arranged in most
Outside.When clasp pipe fitting 1 is compacted, realizes and be tightly engaged between cutoff collar 8 and metal tube 7, it is close from axially external realization
Envelope, thus can prevent external moisture from penetrating into clasp pipe fitting 1 and causing to corrode.
8 diameter of cutoff collar can be set smaller than to the diameter of sealing ring 4, and be greater than the diameter of metal tube 7.At this point, anti-
Guide collar (7 centering of metal tube of guidance insertion, avoid damage to or move sealing ring 4) can be played the role of by seeping ring 8, thus
It can be omitted guide collar 5.
Cutoff collar 8 can be made of any suitable material, if it can satisfy strength and toughness and corrosion-resistant requirement, and
Enough deformations are generated when compression without being destroyed.It is preferred that using engineering plastics, such as polyethylene etc..
And it should be noted that sealing ring shown in figure 4, guide collar 5, snap ring 6 and cutoff collar 8 put in order only
It is a kind of preferred implementations.It is close that the basic role of guide collar 5 is that guidance 7 centering of metal tube insertion is avoided damage to or moved
Seal 4, the basic role of cutoff collar 8 are to prevent external moisture from penetrating into clasp pipe fitting 1 and causing to corrode, meet
Under the premise of sealing these requirements, other arrangement modes are also possible.No matter for example, the setting sequence of other associated components
How, make guide collar 5 in the axially external setting of the bellmouth inner close fitting sealing ring 4 of clasp pipe fitting 1.In another example no matter other
How is the setting sequence of associated components, and cutoff collar 8 is arranged the axially outermost in the bellmouth of clasp pipe fitting 1.
Sealing ring 4 preferably uses more flat structure, that is, width is greater than the cross section of height, to increase and institute's seal pipe
Contact area between part, to improve sealing effect.For example, rectangular cross section or oval cross section section or other are suitable
Close the cross section of shape.
Snap ring 6 is in having ring-type jaggy, so that when being radially compressed, internal diameter reduces.Snap ring 6 can use various
Form.As an example, Fig. 6 shows a kind of circular ring type snap ring.
The right part of flg of Fig. 6 is the cross-sectional view of left hand view.The right part of flg of Fig. 6 shows, the tapered face of the inner peripheral surface of snap ring 6.
Certainly, this is only a kind of exemplary cross section, can also use rectangular cross section as shown in FIG. 6.When by radial compaction
When, the metal tube of this cone structure and compressive deformation provides axial compressive force with credit union, to further compress rubber seal
Circle, thus provides better seal effect.
Fig. 7 shows a kind of ring gear formula snap ring, internal to have circumferentially distributed dentalation.This dentalation has
Help be embedded into when by radial compaction and be inserted into metal tube, to improve anti-drawing strength.Equally, snap ring 6 shown in Fig. 7
The inner peripheral surface structure of tapered surface can be equally used for circular ring type snap ring shown in fig. 6.
Metallic conduit snap ring-type connection structure shown in Fig. 4 is assembled in this way.Metal tube 7 is inserted into Fig. 3 institute first
It is in place in 1 bellmouth of clasp pipe fitting for being mounted with sealing ring 4, guide collar 5, snap ring 6 and cutoff collar 8 shown, then make
With compaction tool on clasp pipe fitting 1 seal groove 2 and annular groove 3 carry out while being compressed to predetermined size.At this point, sealing
Slot 2 is forced internal sealing ring 4 to be close to metal tube 8 and forms one of face sealing, the fluid in pipeline is prevented to let out by circumferential compression
Leakage, meets seal request.Annular groove 3 is forced internal snap ring 6 to be tightly embedded in metal tube 7 and forms a circle by circumferential compression simultaneously
It is embedded in the compression groove of metal tube, meets pipeline anti-pull-out property.When being equipped with guide collar 5, guide collar 5 also while circumferentially by
To being inwardly compressed, to be close to the outer surface of metal tube 7 and the inner surface of clasp pipe fitting 1, further sealing is formed.When setting
When having cutoff collar 8, cutoff collar 8 also while is circumferentially inwardly compressed, to be close to outer surface and the snap ring-type of metal tube 7
The inner surface of pipe fitting 1 forms further sealing.
Test data shows that the tension pull out force of the snap ring-type connection of equivalent specifications is the 2.2 of cartridge connection tension pull out force
Times or more, improved strengthened snap ring-type connection tension pull out force is 4 times or more of equivalent specifications cartridge connection tension pull out force.
It can be seen from Fig. 4 metallic conduit snap ring-type connection structure only the seal groove 2 on clasp pipe fitting 1 and card
By deformation is compressed, other positions will not deform annular groove 3 (in the same area).
Although snap ring 6 is tightly embedded in metal tube 7 zinc coat of coating steel pipe outer wall is caused to be broken it can be seen from Fig. 5
It is bad, but it is just close before reaching zinc coat and being damaged place to penetrate into the water flow between clasp pipe fitting 1 and the metal tube 7 of insertion
Seal 4 is stopped, because without corroding caused by metal tube 7.It is also shown in Fig. 5, although snap ring 6 is tightly embedded in metal tube 7 and makes
It is destroyed at the zinc coat of coating steel pipe outer wall, but the axially outermost shape due to cutoff collar 8 in the bellmouth of clasp pipe fitting 1
At sealing, external moisture does not penetrate into the inside of clasp pipe fitting 1, thus will not cause to corrode to metal tube 7.It changes
Yan Zhi, structure of the invention make connected coating steel pipe service life will not be caused to reduce because of the destruction of zinc coat.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to the exhaustive present invention, or limits the invention to disclosed precise forms, and it will be apparent that according to the above instruction,
Many changes and variations can be made.The purpose of selecting and describing the exemplary embodiment is that explaining of the invention specific
Principle and its practical application, so that others skilled in the art can be realized and utilize of the invention a variety of different
Exemplary implementation scheme and various chooses and changes.The scope of the present invention be intended to by appended claims and its
Equivalent form is limited.
Claims (10)
1. a kind of metallic conduit snap ring-type connection structure characterized by comprising
Clasp pipe fitting (1), at least provided with seal groove (2) and annular groove (3), the annular groove (3) on female end inner peripheral surface
Positioned at the axially external of the seal groove (2)；
Sealing ring (4) is arranged in the seal groove (2)；
Guide collar (5) is arranged in annular groove (3) and is located at the axially external of sealing ring (4), and the internal diameter of the guide collar is small
Internal diameter in sealing ring and the outer diameter greater than metal tube (7)；And
Metal clasp (6), in having ring-type jaggy, to be arranged in annular groove (3) and be located at the axial direction of guide collar (5)
Outside,
Wherein when metal tube (7) are inserted into the bellmouth of clasp pipe fitting in place, crimping tool is utilized to compress clasp pipe fitting (1)
Seal groove (2) and annular groove (3) are allowed to deform, so that the tightening deformation by snap ring makes metal tube (7) corresponding deformation, thus lead to
Cross the sealed connection between sealing ring (4) realization metal tube (7) clasp pipe fitting (1).
2. metallic conduit snap ring-type connection structure according to claim 1, which is characterized in that the guide collar is by engineering plastic
Material is made.
3. metallic conduit snap ring-type connection structure according to claim 1, which is characterized in that further include being arranged in metal card
The axially external cutoff collar (8) of ring (6), thus when clasp pipe fitting (1) is compacted from axially external realization clasp pipe fitting
(1) sealing between metal tube (7).
4. metallic conduit snap ring-type connection structure according to claim 3, which is characterized in that the cutoff collar (8) is by work
Engineering plastics are made.
5. metallic conduit snap ring-type connection structure according to claim 1, which is characterized in that the metal tube (7) is plating
Zinc pipe.
6. metallic conduit snap ring-type connection structure according to claim 1, which is characterized in that the metal clasp (6)
Inner peripheral surface has dentalation.
7. metallic conduit snap ring-type connection structure according to claim 1, which is characterized in that the metal clasp (6)
The tapered face of inner peripheral surface.
8. metallic conduit snap ring-type connection structure according to claim 1, which is characterized in that the cross of the sealing ring (4)
The width in section is greater than height.
9. a kind of metallic conduit snap ring-type connection structure characterized by comprising
Clasp pipe fitting (1), female end are equipped with seal groove (2) and annular groove (3)；
Sealing ring (4) is arranged in the seal groove (2)；
Metal clasp (6), in having ring-type jaggy, to be arranged in annular groove (3) and be convenient for compressive deformation；And
Guide collar (5), in the axially external setting of the bellmouth inner close fitting sealing ring (4) of clasp pipe fitting (1), the guide collar
Internal diameter be less than the internal diameter of sealing ring and be greater than the outer diameter of metal tube (7), wherein when metal tube (7) insertion clasp pipe fitting being held
Mouth in place when, using crimping tool compress clasp pipe fitting (1) seal groove (2) and annular groove (3) be allowed to deform, to realize
Sealed connection between metal tube (7) clasp pipe fitting (1).
10. a kind of metallic conduit snap ring-type connection structure characterized by comprising
Clasp pipe fitting (1), female end are equipped with seal groove (2) and annular groove (3)；
Sealing ring (4) is arranged in the seal groove (2)；
Metal clasp (6), in having ring-type jaggy, to be arranged in annular groove (3) and be convenient for compressive deformation；And
Cutoff collar (8), the axially outermost, the diameter of the cutoff collar (8) is small for setting in the bellmouth of clasp pipe fitting (1)
Diameter in sealing ring (4) and the diameter slightly larger than metal tube (7), thus outside from axis when clasp pipe fitting (1) is compacted
Realize the sealing between clasp pipe fitting (1) and metal tube (7) in side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711022022.8A CN109707928A (en) | 2017-10-26 | 2017-10-26 | Metallic conduit snap ring-type connection structure |
| PCT/CN2018/111851 WO2019080894A1 (en) | 2017-10-26 | 2018-10-25 | Clamp ring type connection structure for metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711022022.8A CN109707928A (en) | 2017-10-26 | 2017-10-26 | Metallic conduit snap ring-type connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109707928A true CN109707928A (en) | 2019-05-03 |
Family
ID=66247133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711022022.8A Pending CN109707928A (en) | 2017-10-26 | 2017-10-26 | Metallic conduit snap ring-type connection structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109707928A (en) |
| WO (1) | WO2019080894A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4229025A (en) * | 1978-04-25 | 1980-10-21 | Perfection Corporation | Stab-type coupling |
| CN2437938Y (en) * | 2000-07-27 | 2001-07-04 | 贵州凯撒铝业有限公司 | Double collar locking bush type quick-mounting joint for pipeline |
| CN2823753Y (en) * | 2005-05-26 | 2006-10-04 | 董阿能 | Fast-inserting joint |
| CN1961173A (en) * | 2004-01-26 | 2007-05-09 | 金石允 | Joint for plumbing |
| CN201748082U (en) * | 2010-06-28 | 2011-02-16 | 王德明 | Quick fastening pipe coupling |
| CN205136880U (en) * | 2015-11-06 | 2016-04-06 | 苏光彬 | Metal pipeline snap ring formula connection structure |
| CN208311707U (en) * | 2017-10-26 | 2019-01-01 | 周庆念 | Metallic conduit snap ring-type connection structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2014201808B2 (en) * | 2006-04-12 | 2016-02-04 | Orrcon Operations Pty Ltd | Pipe and pipe joining method |
| CN201621393U (en) * | 2010-01-21 | 2010-11-03 | 河南康泰塑业科技有限公司 | Ring pressure reinforced thin-wall metal pipe fitting |
-
2017
- 2017-10-26 CN CN201711022022.8A patent/CN109707928A/en active Pending
-
2018
- 2018-10-25 WO PCT/CN2018/111851 patent/WO2019080894A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4229025A (en) * | 1978-04-25 | 1980-10-21 | Perfection Corporation | Stab-type coupling |
| CN2437938Y (en) * | 2000-07-27 | 2001-07-04 | 贵州凯撒铝业有限公司 | Double collar locking bush type quick-mounting joint for pipeline |
| CN1961173A (en) * | 2004-01-26 | 2007-05-09 | 金石允 | Joint for plumbing |
| CN2823753Y (en) * | 2005-05-26 | 2006-10-04 | 董阿能 | Fast-inserting joint |
| CN201748082U (en) * | 2010-06-28 | 2011-02-16 | 王德明 | Quick fastening pipe coupling |
| CN205136880U (en) * | 2015-11-06 | 2016-04-06 | 苏光彬 | Metal pipeline snap ring formula connection structure |
| CN208311707U (en) * | 2017-10-26 | 2019-01-01 | 周庆念 | Metallic conduit snap ring-type connection structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019080894A1 (en) | 2019-05-02 |
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