CN205877491U - Card income formula connecting device of pipe fitting - Google Patents
Card income formula connecting device of pipe fitting Download PDFInfo
- Publication number
- CN205877491U CN205877491U CN201620775583.XU CN201620775583U CN205877491U CN 205877491 U CN205877491 U CN 205877491U CN 201620775583 U CN201620775583 U CN 201620775583U CN 205877491 U CN205877491 U CN 205877491U
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- pipe fitting
- claw
- snap
- adapter sleeve
- attachment means
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Abstract
The utility model relates to a connecting device field of pipe fitting discloses a card income formula connecting device of pipe fitting, including adapter sleeve, jack catch structure and ration shrink nut, the adapter sleeve is tubulose symmetrical structure, and its surface is equipped with the external screw thread, and the internal surface is equipped with the seal groove, sets up the sealing washer in the seal groove, and ration shrink nut is equipped with the internal thread with the one end that the adapter sleeve is connected, and the internal thread closes with the outer thread to match of adapter sleeve surface, and ration shrink inner wall of nut still is equipped with the boss, and the jack catch structure sets up in the space that adapter sleeve, ration shrink nut and pipe fitting enclose. The utility model discloses it is simply convenient to install, does not need the hydraulic pressure of heaviness or machinery to withhold instrument or welding equipment, only leans on the structure of pipe fitting itself, uses the spanner can accomplish the connection, and technical requirement is low, and all junctions all can dismantle at will, maintain, change, add moreover, can not destroy original pipe fitting, and original pipe fitting can reuse, sparingly cost.
Description
Technical field
The present invention relates to the attachment means field of pipe fitting, in particular to the snap-in attachment means of a kind of pipe fitting.
Background technology
Daily life there is multiple pipe fitting need to connect, has heating pipe fitting, pipe member, combustion gas pipe fitting, sewer pipe etc.,
Purposes according to pipeline, material, the mode of connection is the most not the same.As a example by stainless steel pipe, current stainless steel pipe is common
Connected mode mainly have compression, clamp-press type, bendable, clamping hoop type, adhesive type, movable joint Flange joint, socket welding type,
Welding type and welding are connected, with tradition, the subseries connected mode combined.
Compression connects: pipe arrangement inserts the mouth of pipe of pipe fitting exactly, nut fastens, by spiral force by the sleeve pipe of spout part
Compressed by sealing ring, seal, complete the connection of pipe arrangement.
The shortcoming that compression connects: compression connects to be needed by the beading tube ends of pipe arrangement or in the pipe end groove work of pipe arrangement
Tool one tongue of spin-up, or add c-type thrust ring, the complex process of on-the-spot processing at pipe end rotation groove, workload is big, and quality is unstable
Fixed.
Cartridge connection: the U-type groove of clamp-press type pipe end is built with special rubber seal, by rustless steel during installation
Pipe insertion bellmouth pipe fitting is to positioning step position, with the special card pressure instrument card splenium to U-type groove and U-type groove one or both sides
Position extrudes simultaneously, and rubber seal seals after being squeezed, card splenium position pipe fitting and tubing contraction distortion simultaneously, cuts open
Face forms hexagonal configuration and plays location fixation, thus have effectively achieved the connection of stainless steel pipes.
The shortcoming of cartridge connection: need to use specific purpose tool, non-dismountable after card pressure, card pressure position cross section reduces, impact
Flow.
Bendable connection: pipe arrangement inserts the mouth of pipe of pipe fitting exactly, fastens acorn nut with special spanner, by compressing
Sealing ring is sealed, thus completes the connection of pipe arrangement and pipe fitting.
The shortcoming of bendable connection: need to grooving machine at the scene to pipe arrangement end rolling groove with fixing c-type circle.
Welding type connect: by the end finished edge of pipe arrangement, by hand or automatic welding pipe arrangement is made shape welding.
The shortcoming that welding type connects: scene need to have solder technology and equipment, is easily generated leak source, owing to the ablation of alloy is made
Easily get rusty with pipeline.
Flange form connects: exactly flange and pipe arrangement are made shape argon arc welding, with fast folder or bolt fastening, makes the sealing between flange
Pave sealing function, complete pipe arrangement and connect.
The shortcoming that flange form connects: in addition to the shortcoming of welding, also volume is relatively big, the problem that efficiency of assembling is the lowest.
Taper thread connects: be exactly that external screw thread makees shape argon arc welding with pipe arrangement, and internal thread tube piece has connected sealing with taper thread and made
With, complete pipe arrangement and connect.
The shortcoming that taper thread connects: in addition to the screw thread accuracy of manufacture, scene is installed or welded and all must strictly control
Centrage, otherwise external screw thread may weld tiltedly, and welding quality can not get ensureing, being likely to result in and do over again or seal failure, commissure is also
There is the problem that decay resistance declines.This is the most reliable type of attachment.
The various connected modes of above stainless steel pipe, or need heavy hydraulic pressure or instrument withheld by machinery or welding sets
Standby, difficulty of construction is big, installs inconvenience, or belongs to permanent connection, once occurs leakage or certain position to need to change pipe
Road, then must cut off (destruction) at relevant position when increasing equipment, then could keep in repair carrying out, change or add, very
Trouble, the connection of the pipe fitting of other materials there is also similar problem.
Summary of the invention
Present invention is primarily targeted at for the problems referred to above, it is provided that the snap-in attachment means of a kind of pipe fitting, only tube
The structure of part itself, uses spanner can complete to connect, installs simple, and technology requires low, and all junctions all can be random
Dismantling, keep in repair, change, increase, will not destroy original pipe fitting, the snap-in attachment means of this pipe fitting is applicable not only to rustless steel
Pipe fitting, is also applied for the connection of multiclass pipe fitting, such as aluminium-plastics pipe piece, PB pipe fitting, PP-R pipe fitting, PVC pipe etc..
To achieve these goals, the present invention uses following technical scheme:
The snap-in attachment means of a kind of pipe fitting, including adapter sleeve, claw structure with quantitatively shrink nut, adapter sleeve is pipe
Shape symmetrical structure, its outer surface is provided with external screw thread, and inner surface is provided with seal groove, arranges sealing ring, quantitatively shrink spiral shell in seal groove
Female one end being connected with adapter sleeve is provided with female thread, and female thread matches with the external screw thread of adapter sleeve outer surface, quantitatively shrinks spiral shell
Female inwall is additionally provided with boss, in the space that claw structure is arranged at adapter sleeve, quantitatively contraction nut and pipe fitting surround.
Further, claw structure includes claw, deformation arm, and claw uses integral structure with deformation arm；
Further, claw structure also includes that back-up ring, claw, deformation arm use integral structure with back-up ring；
Further, adapter sleeve and claw structure are integral type structure；
Further, seal groove uses closed or Open architecture；
Further, the cross section of open seal groove is right-angled trapezium, and the angle of its hypotenuse is 20-80 degree；
Further, adapter sleeve centre position is provided with locating ring；
Further, described boss is two-stage step boss, and its side near female thread side is hypotenuse；
Further, the angle of the hypotenuse of described boss is 40-50 degree；
Further, clawed end portions outer surface is provided with guiding circular arc, and guiding circular arc matches with the hypotenuse of boss；
Further, clawed end portions inner surface is provided with and snaps in tooth；
Further, claw is uniformly distributed along the circumference, its quantity at least two；
Further, described claw structure is c-type；
Further, claw snaps in the amount of pipe fitting and is at least 0.2mm.
The present invention compared with prior art has the advantages that present configuration is simple, and it is convenient to install, it is not necessary to stupid
The hydraulic pressure of weight or machinery withhold instrument or welding equipment, the only structure of tube part itself, use spanner can complete to connect, skill
Art requires low, and all junctions all can arbitrarily dismantle, keep in repair, change, increase, and will not destroy original pipe fitting, primary tube
Part can reuse, cost-effective, economizes on resources.
Accompanying drawing explanation
Fig. 1 is the adapter sleeve cross-sectional view of embodiment 1；
Fig. 2 is the quantitatively contraction nut cross-sectional view of embodiment 1；
Fig. 3 is the claw structure structural representation of embodiment 1；
Fig. 4 is the clawed end portions partial enlarged drawing of embodiment 1；
Fig. 5 is the adapter sleeve cross-sectional view of embodiment 2；
Fig. 6 is the cross-sectional view after embodiment 2 connects；
Fig. 7 is the adapter sleeve cross-sectional view of embodiment 3；
Fig. 8 is that embodiment 3 installs pre-structure schematic diagram；
Fig. 9 is embodiment 3 mounted configuration schematic diagram；
Figure 10 is the adapter sleeve cross-sectional view of embodiment 4；
Figure 11 is the claw structure schematic diagram in embodiment 5；
Figure 12 is the claw structure schematic diagram in embodiment 6；
Figure 13-Figure 16 is various forms of to snap in toothing schematic diagram.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling: 1, pipe fitting；2, nut is quantitatively shunk；3, seal groove；4, connect
Set；5, claw；6, deformation arm；7, back-up ring；8, locating ring；9, external screw thread；10, female thread；11, boss；12, guiding circular arc；13、
Snap in tooth；14, male connection；15, sealing ring.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
Embodiment 1
As it is shown in figure 1, the adapter sleeve 4 of the present embodiment, adapter sleeve 4 is Tubular Symmetrical Shapes structure, outside its outer surface two ends are provided with
Screw thread 9, inner surface two ends are provided with seal groove 3, and inwall centre position is provided with locating ring 8.
As in figure 2 it is shown, quantitatively shrink one end that nut 2 is connected with adapter sleeve 4 to be provided with female thread 10, female thread 10 be connected
The external screw thread 9 overlapping 4 outer surfaces matches, and quantitatively shrinks nut 2 inwall and is additionally provided with boss 11, and boss 11 is that two-stage step is convex
Platform, its side near female thread 10 side is hypotenuse, and the angle of hypotenuse is 40-50 degree.
As it is shown on figure 3, the claw structure structural representation of the present embodiment, claw structure is loop configuration, including claw 5,
Deformation arm 6 and back-up ring 7, claw 5, deformation arm 6 use integral structure with back-up ring 7.Claw structure is arranged at adapter sleeve 4, quantitatively
In the space that contraction nut 2 and pipe fitting 1 surround.
Fig. 4 is claw 5 structural representation, and claw 5 end outer surface is provided with guiding circular arc 12, guiding circular arc 12 and boss
The hypotenuse of 11 matches, and claw 5 terminal interior surface is provided with and snaps in tooth 13, and the purpose arranging guiding circular arc 12 is to prevent card
Blocked by boss 11 when pawl 5 snaps in pipe fitting.
During installation, first sealing ring 15 is loaded in seal groove 3, then will quantitatively shrink nut 2 by boss 11 in outside
Direction loads on pipe fitting 1, is loaded by claw structure and quantitatively shrinks on the pipe fitting inside nut 2, then pipe fitting 1 is loaded adapter sleeve
In 4, after pipe fitting 1 end face contacts with locating ring 8, rotate quantitatively contraction nut 2 and make the external screw thread of its female thread 10 and adapter sleeve 4
9 screw, in the space that claw structure enters adapter sleeve 4, quantitatively contraction nut 2 and pipe fitting 1 surround, and at this moment claw structure guide ring
7 prop up adapter sleeve 4, and the inclined-plane of guiding circular arc on claw 5 12 and boss 11 comes into contact with that (angle on this inclined-plane guides circle exactly
The angle of the guide angle of arc 12), this is the state before claw 5 will snap in pipe fitting 1, and now claw 5 is not yet received to pipe fitting 1 center
Contracting, deformation arm 6 not yet deforms；It is further continued for rotating and quantitatively shrinks nut 2 and make the guiding circular arc 12 of claw 5 along the inclined-plane of boss 11
Gradient slides to pipe fitting 1 center, makes claw 5 external diameter shrink, and now deformation arm 6 deforms, and claw 5 snaps in pipe wall.Claw 5 end
Inner surface is provided with and snaps in tooth 13 and be applicable to non-plastic class pipe fitting, and it is according to anti-between pipe fitting that claw 5 snaps in the amount of snapping in of pipe wall
The needs of pulling-out force and artificially manufacture and design, can be previously set and can control, its optional scope is generally 0.2mm-
1.2mm, if tube material changes, the amount of snapping in also respective change.If applying the present invention to the connection of Plastic pipe fitting,
Need not setting on claw and snap in tooth, utilize the bump contact clamping of claw and pipe fitting.
Embodiment 2
As it is shown in figure 5, the present embodiment is compared with Example 1, quantitatively contraction nut 2 structure is identical, and adapter sleeve 4 is tied with claw
Structure integral type connects, and Fig. 6 is the cross-sectional view after the present embodiment connects.
Embodiment 3
As it is shown in fig. 7, adapter sleeve 4 structure chart of the present embodiment, adapter sleeve 4 two ends have open seal groove, and notch is horizontal
Cross section is right-angled trapezium, and the angle of its hypotenuse is 20-80 degree, and claw structure and quantitatively contraction nut 2 are same as in Example 1.Fig. 8
Connecting pre-structure schematic diagram for the present embodiment, Fig. 9 is structural representation after the present embodiment connects.
Embodiment 4
As shown in Figure 10, compared with Example 3, the open seal groove structure at adapter sleeve 4 two ends is different, adopts for the present embodiment
Use this structure, need to manage outer equipped two male connections 14 at adapter sleeve 4 two ends, be used for coordinating with quantitatively contraction nut 2.
Adapter sleeve in embodiment 3 needs to use hot investment casting, and casting requires height, if it occur that casting flaw, it may occur that seepage, but
Need not equipped male connection, and use this connecting jacket structure of the present embodiment, processing is simple, uses steel pipe manufacture i.e.
Can, however it is necessary that equipped male connection.Claw structure and quantitatively contraction nut 2 are same as in Example 1.
According to actual needs, 3 part-claws 5, deformation arm 6 and the back-up ring 7 in claw structure, all can be independent,
Claw structure can have various deformation.Such as following embodiment 5 and embodiment 6:
Embodiment 5
In the present embodiment, claw structure is decomposed into two parts, and back-up ring 7 is individually present, and claw 5 and deformation arm 6 use one
Formula structure, forms dog rings, as shown in figure 11.The claw structure of the present embodiment, needs and quantitatively shrinks nut 2 and embodiment 1
Or the adapter sleeve of embodiment 2 or embodiment 3 with the use of.Claw structure uses this decomposed form, adds primarily to reduce
Work difficulty.
Embodiment 6
In the present embodiment, claw structure is also classified into two parts-self-existent back-up ring 7 and the dog rings of claw 5 composition, goes
Fall deformation arm 6, and dog rings has been " C " type, lacks one section, as shown in figure 12.Such claw structure, is easier to when mounted
Clamping.Equally, when mounted, this claw structure needs and quantitatively shrinks nut 2 and embodiment 1 or embodiment 2 or embodiment 3
Adapter sleeve with the use of.
The snapping in tooth 13 and can have various deformation, as shown in figures 13-16 of claw 5 terminal interior surface.Increase on claw and snap in
The purpose of tooth is contemplated to the pulling-out force between increase and pipe fitting, as long as easily manufacturing, easily snapping in, can strengthen again and between pipe fitting
Pulling-out force, other shape does not limits.If applying the present invention to the connection of Plastic pipe fitting, claw need not setting and snap in
Tooth, utilizes the bump contact clamping of claw and pipe fitting, but in order to prevent pipe fitting from deforming, then needs to arrange in pipe anti-
Flat lining, flattens pipe fitting during to prevent claw clamping.
The minimum number of claw is two, and either even number or odd number all must comply be uniformly distributed along the circumference former
Then.The width of claw is the biggest, and the gap between claw is the least, and claw is the biggest with the contact area of tube outer diameter, it is meant that claw
Need not snap in pipe wall when pipe fitting clamping and also can obtain attachment force the biggest between pipe fitting, such stress is to plastics
Class pipe fitting is highly beneficial, because bump contact substantially reduces the pressure of unit are, although claw do not snap in pipe wall but
Total attachment force does not subtracts.
Owing to being to carry out blanking according to different length expenses when pipe fitting is installed, unavoidably have the error in length, have
Last the most just discovery may be installed to fill not Shang, if pipe fitting length any can cut out short again, but if short a bit the poorest
Tens millimeters do not fill, and this situation will be the most awkward.Having had this adapter sleeve just can solve problem, adapter sleeve total length is permissible
Make two kinds: one is full-length, it is adaptable in the normal connection that consumption is maximum；Another kind is exactly longer by tens than full-length
The length of millimeter, it is adaptable to shorter connection owed by pipe fitting, and its essence compensates connection exactly.
The snap-in attachment means of this pipe fitting is used to not only the connection of stainless steel pipe, is also applied for aluminum pipe, aluminum copper-clad
The connection of the multiclass pipe fittings such as pipe, copper pipe, titanium pipe, common galvanized iron conduit, aluminium-plastics pipe piece, PB pipe fitting, PP-R pipe fitting, PVC pipe, when
So, being applied to the connection of unlike material pipe fitting, claw structure is also otherwise varied with the material quantitatively shrinking nut.
Certainly, foregoing is only presently preferred embodiments of the present invention, it is impossible to be considered for limiting the enforcement to the present invention
Example scope.The present invention is also not limited to the example above, and those skilled in the art are in the essential scope of the present invention
Interior made impartial change and improvement etc., all should belong in the patent covering scope of the present invention.
Claims (14)
1. the snap-in attachment means of a pipe fitting, it is characterised in that include adapter sleeve (4), claw structure and quantitatively shrink nut
(2), adapter sleeve (4) is Tubular Symmetrical Shapes structure, and its outer surface is provided with external screw thread (9), and inner surface is provided with seal groove (3), seal groove
(3) sealing ring (15) is set in, quantitatively shrinks one end that nut (2) is connected with adapter sleeve (4) and be provided with female thread (10), female thread
(10) match with the external screw thread (9) of adapter sleeve (4) outer surface, quantitatively shrink nut (2) inwall and be additionally provided with boss (11), claw
Structure is loop configuration, is arranged at adapter sleeve (4), quantitatively shrinks nut (2) and in space that pipe fitting (1) surrounds.
The snap-in attachment means of pipe fitting the most according to claim 1, it is characterised in that claw structure include claw (5) and
Deformation arm (6), claw (5) uses integral structure with deformation arm (6).
The snap-in attachment means of pipe fitting the most according to claim 2, it is characterised in that claw structure also includes back-up ring
(7), claw (5), deformation arm (6) use integral structure with back-up ring (7).
The snap-in attachment means of pipe fitting the most according to claim 1, it is characterised in that adapter sleeve (4) with claw structure is
Integral structure.
The snap-in attachment means of pipe fitting the most according to claim 1, it is characterised in that seal groove (3) use closed or
Open architecture.
The snap-in attachment means of pipe fitting the most according to claim 5, it is characterised in that the horizontal stroke of open seal groove (3)
Cross section is right-angled trapezium, and the angle of its hypotenuse is 20-80 degree.
The snap-in attachment means of pipe fitting the most according to claim 1, it is characterised in that adapter sleeve (4) centre position is arranged
There is locating ring (8).
The snap-in attachment means of pipe fitting the most according to claim 1, it is characterised in that described boss (11) is two-stage platform
Stepwise boss (11), its side near female thread (10) side is hypotenuse.
The snap-in attachment means of pipe fitting the most according to claim 8, it is characterised in that the hypotenuse of described boss (11)
Angle is 40-50 degree.
The snap-in attachment means of pipe fitting the most according to claim 2, it is characterised in that claw (5) end outer surface sets
Being equipped with guiding circular arc (12), guiding circular arc (12) matches with the hypotenuse of boss (11).
The snap-in attachment means of 11. pipe fittings according to claim 2, it is characterised in that claw (5) terminal interior surface sets
It is equipped with and snaps in tooth (13).
The snap-in attachment means of 12. pipe fittings according to claim 2, it is characterised in that claw (5) is uniformly distributed along the circumference, its
Quantity at least two.
The snap-in attachment means of 13. pipe fittings according to claim 1, it is characterised in that claw structure is c-type.
The snap-in attachment means of 14. pipe fittings according to claim 2, it is characterised in that claw (5) snaps in pipe fitting (1)
Amount at least 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620775583.XU CN205877491U (en) | 2016-07-22 | 2016-07-22 | Card income formula connecting device of pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620775583.XU CN205877491U (en) | 2016-07-22 | 2016-07-22 | Card income formula connecting device of pipe fitting |
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| Publication Number | Publication Date |
|---|---|
| CN205877491U true CN205877491U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620775583.XU Active CN205877491U (en) | 2016-07-22 | 2016-07-22 | Card income formula connecting device of pipe fitting |
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| CN (1) | CN205877491U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015778A (en) * | 2016-07-22 | 2016-10-12 | 陆子万 | Pipe clamping connection device |
| CN114008364A (en) * | 2019-06-28 | 2022-02-01 | 东尾机械株式会社 | Pipe joint |
-
2016
- 2016-07-22 CN CN201620775583.XU patent/CN205877491U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015778A (en) * | 2016-07-22 | 2016-10-12 | 陆子万 | Pipe clamping connection device |
| CN114008364A (en) * | 2019-06-28 | 2022-02-01 | 东尾机械株式会社 | Pipe joint |
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