Entwining tube spigot-and-socket joint
Technical field
The present invention relates to pipe joint field, be specifically related to a kind of entwining tube spigot-and-socket joint.
Background technology
Polyethylene plastic-steel winding pipe (SRWPE) is to be welded (on faying surface through spiral winding by the heterotypic strip of steel plastic compount
Extrusion welding) to make, its inner wall smooth is smooth, and specification is DN200-DN3000mm.This kind of tubing have corrosion-resistant, light weight,
The advantages such as simple installation, through-current capacity are big, life-span length (50 years), alternative high energy consumption material (cement, cast iron, pottery etc.) makes
Tubing, belongs to environment-friendly product.
It was connected with each other the various pipe joints of employing between polyethylene plastic-steel winding pipe to be attached in the past, but many connect
Head is not the most starved and can be well connected and sealed, and after connecting, the short time will occur joint leakage phenomenon, and some seal effect
But the best joint cost is the highest, it is impossible to well promoted the use of.
Such as Chinese Patent Application No. 201220003239.0, disclose a kind of pipe connected for polyethylene plastic-steel winding pipe
Joint, it includes spiral pipe body, is separately fixed at the plug-in unit sleeve pipe outside spiral pipe body two ends and holds
Cannulated, insert
Part sleeve pipe is made up of the first serpentine pipe and the first straight tube, have inside the first serpentine pipe match with evagination spiral and
Rotation direction is identical
Spiral grooves, and between the first serpentine pipe and the first straight tube, be provided with the first flange projection, the first serpentine pipe rotation
Merge fixing
One end at spiral pipe body;Socket joint sleeve pipe is made up of the second serpentine pipe and the second straight tube, outside the first straight tube
Footpath less than or
Internal diameter equal to the second straight tube.Although above-mentioned patent by spiral pipe body two ends port and socket joint sleeve pipe and
Plug-in unit poverty pipe
Junction is respectively adopted sweat soldering connected mode, improves the sealing of product, but its first serpentine pipe and
Second spiral
Be respectively equipped with the spiral grooves coordinated with plastic-steel spirally-wound pipe on pipe, by this spiral grooves make the first serpentine pipe and
Second spiral
Pipe screws with spiral pipe body respectively and is connected, and therefore this pipe joint is only applicable to twine with the plastic-steel of identical screw thread
Around pipe, knot
Structure is complicated, and processing cost is high.
And for example Chinese Patent Application No. 201220614450.6, disclose a kind of self-locking connected for plastic-steel spirally-wound pipe
Pipe joint, including plug-in unit sleeve pipe and socket joint sleeve pipe, plug-in unit sleeve pipe includes the first corrugated tubing and the first straight tube, socket joint set
Pipe includes
Two corrugated tubings and the second straight tube;The first described corrugated tubing and the second corrugated tubing are provided with and plastic-steel spirally-wound pipe external screw thread
Three coordinated
Head thread;The port of the first straight tube is provided with one group of buckle coordinated with the second straight tube.Although above-mentioned patent is
One straight tube
Port is provided with one group of buckle coordinated with the second straight tube, solves the problem that existing pipe joint intensity is bad, but
It is this kind of pipe
Joint difficulty of processing is big, and die manufacturing cost is high, and weight is big, and especially this pipe joint once pins and occurs leaking
Or other hair
Time sick, joint cannot unload, and only destroys a joint and just can solve problem, directly results in the increase of cost.
Summary of the invention
In order to solve the problems referred to above, the present invention proposes a kind of entwining tube spigot-and-socket joint, designs the most ingenious, low cost,
Easy to connect, intensity is high, and can effectively seal, and effective, durable, service life is long, can promote the use of.
In order to reach foregoing invention purpose, the present invention proposes techniques below scheme:
Entwining tube spigot-and-socket joint, including outer tube and interpolation pipe, interpolation pipe one end connects in being inserted in one end of outer tube, interior
Intubating equipped with sealing ring between outer tube, the other end of outer tube rotates fixing connection winding pipe, the other end rotation of interpolation pipe
Turn fixing and connect winding pipe.
Described outer tube includes spin mouth and interface, spins mouth and interface links into an integrated entity, and the mouth that spins is cylinder
Shape, has annular groove inside the mouth that spins, the annular boss of annular groove outer end has three skewed slots, is spaced 120 degree between three skewed slots,
Interface profile is horn-like, and inside is cylindrical channel, and cylindrical channel has circular groove near oral area, has ring in the middle of circular groove inwall
Shape draw-in groove, the necking end of interface connects without skewed slot end with the one end of the mouth that spins.
Described outer tube includes spin mouth and interface, spins mouth and interface links into an integrated entity, and the mouth that spins is cylinder
Shape, has annular groove inside the mouth that spins, the annular boss of annular groove outer end has three skewed slots, is spaced 120 degree between three skewed slots,
Interface profile is cylindrical, and inside is cylindrical channel, and cylindrical channel rises near oral area annular groove, another of interface
End ringless-type groove ends connects without skewed slot end with the one end of the mouth that spins.
Described interpolation pipe includes spin mouth and interface, spins mouth and interface links into an integrated entity, and the mouth that spins is cylinder
Shape, has annular groove inside the mouth that spins, the annular boss of annular groove outer end has three skewed slots, is spaced 120 degree between three skewed slots,
Described interface is cylindric, is designed with ramp shaped boss outside interface one end, has annular chamfer, grafting outside the other end
The ramp shaped boss end of mouth connects without skewed slot end with the one end of the mouth that spins.
Described sealing ring includes circle body, pawl, annular fixture block and collar stop, and circle body is cylindric, inside circle body in
Between and be respectively designed with pawl near end position, the centre position, outside of circle body is designed with annular fixture block, the other end of circle body
Outside is designed with collar stop.
Described sealing ring includes circle body and pawl, is semicircle shape outside circle body, is cylindric, inside circle body inside circle body
It is respectively designed with pawl near end positions.
Described outer tube and interpolation pipe are all that polyethylene die sinking integrated through injection molding is formed.
It is an advantage of the invention that design is the most ingenious, winding pipe is convenient and fast connection, and special by this apparatus structure
Design, special connected mode, it is possible to effectively seal against, No leakage, joint low cost, durable, intensity is high, and service life is long,
Can promote the use of well;It is existing that the pawl of sealing ring is designed to effectively prevent the deformation of pipeline expansion or shrinkage from producing leakage
As, and pipe joint is difficult to get loose;Three steel bands that three skewed slot designs of the mouth that spins of outer tube and interpolation pipe make winding pipe are firm
Effectively precession can spin in mouth well, then pass through foaming agent or PE polyvinyl resin (or other filleies) to spinning in mouth
Inside and outside annular groove, both sides carry out injecting glue sealing, convenient and swift, and good sealing effect, low cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram one of the present invention.
Fig. 2 is the schematic diagram two of the present invention.
Fig. 3 is the schematic diagram one of the sealing ring of the present invention.
Fig. 4 is the schematic diagram two of the sealing ring of the present invention.
Fig. 5 is the schematic diagram of the interpolation pipe of the present invention.
Fig. 6 is the schematic diagram one of the outer tube of the present invention.
Fig. 7 is the schematic diagram two of the outer tube of the present invention.
Detailed description of the invention
In order to the present invention is further described, introduce below in conjunction with Figure of description:
1-2 referring to the drawings, entwining tube spigot-and-socket joint, including outer tube 1 and interpolation pipe 2, interpolation pipe 2 one end is inserted in outer tube
Connecting in one end of 1, equipped with sealing ring 3 between interpolation pipe 2 and outer tube 1, the other end of outer tube 1 rotates and is wound around fixing connection
Pipe, the other end of interpolation pipe 2 rotates fixing connection winding pipe 4.
With reference to Fig. 6, described outer tube 1 includes spin mouth 11 and interface 12, spins mouth 11 and interface 12 connects into
Integrally, the mouth 11 that spins is cylindric, has annular groove 13, the annular boss 14 of annular groove 13 outer end has three inside the mouth 11 that spins
Skewed slot 15, is spaced 120 degree between three skewed slots 15, and interface 12 profile is horn-like, and inside is cylindrical channel, and cylindrical channel leans on
Nearly oral area has circular groove 16, has annular slot 17, the necking end of interface 12 and the one of the mouth 11 that spins in the middle of circular groove 16 inwall
End connects without skewed slot end.
With reference to Fig. 7, described outer tube 1 includes spin mouth 11 and interface 12, spins mouth 11 and interface 12 connects into
Integrally, the mouth 11 that spins is cylindric, has annular groove 13, the annular boss 14 of annular groove 13 outer end has three inside the mouth 11 that spins
Skewed slot 15, is spaced 120 degree between three skewed slots 15, and interface 12 profile is cylindrical, and inside is cylindrical channel, and cylindrical channel leans on
Nearly oral area rises and has annular groove 18, and the other end ringless-type groove ends of interface 12 and the one end of the mouth 11 that spins are without skewed slot end phase
Connect.
With reference to Fig. 5, described interpolation pipe 2 includes spin mouth 21 and interface 22, spins mouth 21 and interface 22 connects into
Integrally, the mouth 21 that spins is cylindric, has annular groove 23, the annular boss 24 of annular groove 23 outer end has three inside the mouth 21 that spins
Skewed slot 25, is spaced 120 degree between three skewed slots 25, and described interface 22 is cylindric, and interface 22 is designed with outside one end
Ramp shaped boss 26, has annular chamfer 27 outside the other end, the ramp shaped boss end of interface 22 and the one end of the mouth 21 that spins are without tiltedly
Groove end connects.The interface design annular chamfer of interpolation pipe is inserting of the interface convenient insertion outer tube of interpolation pipe for convenience
In interface.
With reference to Fig. 3, described sealing ring 3 includes circle body 31, pawl 32, annular fixture block 33 and collar stop 34, circle body 31
Being cylindric, inside circle body 31, middle and close end position is respectively designed with pawl 32, and the outside interposition of circle body 31 installs
In respect of annular fixture block 33, outside the other end of circle body 31, it is designed with collar stop 34.
With reference to Fig. 4, described sealing ring 3 includes circle body 31 and pawl 32, is semicircle shape, inside circle body 31 outside circle body 31
It is respectively designed with pawl 32 near end positions.
Described outer tube 1 and interpolation pipe 2 are all that polyethylene die sinking integrated through injection molding is formed.
Seeing figures.1.and.2, when the present invention uses, outer tube and interpolation pipe are spun on winding by the mouth that spins at two ends respectively
Pipe outer end, then by a and b 2 at the two ends that the mouth that spins contacts with winding pipe is carried out injecting glue sealing, corresponding model knot
The sealing ring of structure installs in the sealing ring groove seat in outer tube interface, and (sealing ring in Fig. 3 uses in FIG, in Fig. 4
Sealing ring uses in fig. 2), then the interface of interpolation pipe is inserted in the interface of outer tube, outer tube and interpolation pipe it
Between sealed by sealing ring, the present invention is quick and easy for installation, and low cost, good seal, No leakage, and intensity is high, and service life is long.