The plastic-steel spirally-wound pipe of band joint socket
Technical field
The utility model is involved in a kind of structured wall plastic pipe, particularly a kind of plastic-steel spirally-wound pipe with joint socket.
Background technique
The popular plastic-steel of existing market twines the draining drain pipe; Be called the SRP pipe abroad; This structured wall popes is compared with traditional double-wall corrugated pipe, hollow wall entwining tube, steel band reinforced spiral ripple pipe, the plastic-steel spirally-wound pipe combination property best; It is minimum that it produces materials, and ring stiffness is high, and equipment cost is low.All there is a common shortcoming but entwining tube in the past is the same: because adopt winding shaping process production; Stiffening rib is the helicoidal structure of non-sealing; The connection of tubing has brought very big difficulty to construction and installation, the seal structure complex of connection, and it is big to reveal hidden danger.The Placement that adopts at present has two kinds: a kind of is the method for mechanical fasteners; Outer with 11 coatings of stainless steel stirrup; Internal layer filling-foam rubber plate 12, the fastening force through clamping bolt on the stainless steel stirrup compresses the internal layer rubber plate and reaches seal action (accompanying drawing one); This connection construction is more loaded down with trivial details, and cost is high, is not suitable for the heavy caliber plastic-steel spirally-wound pipe and connects; Another kind is that the hot melt band connects, and utilizes high temperature that the electric heating element energising back that is embedded in the hot melt belt surface produces that the internal surface of hot melt band 13 and tubing is fused into integral body (accompanying drawing two); This connection construction is difficulty relatively also, and it is longer that the hot melt band connects welded seam, and the rare illusion that can produce accidentally connects us to be called " rosin joint " bonding insecure, seepage easily in the using process; The weakest link of entwining tube is an interface, adopts the bearing strength of this Placement jointing to reduce greatly, can be out of shape when jointing receives external compression to crack and seepage.
Summary of the invention
The purpose of the utility model is to overcome the problems referred to above that plastic-steel spirally-wound pipe exists when tubing connects in the existing technology, a kind of easy construction is provided, connects the plastic-steel spirally-wound pipe that is not easy the band joint socket of seepage in reliable, the using process.The plastic-steel spirally-wound pipe of the utility model design band joint socket comprises plastic-steel spirally-wound pipe, and it is characterized in that: the end at plastic-steel spirally-wound pipe has joint socket.It is characterized in that: described joint socket is the interface section that an internal diameter is a bit larger tham plastic-steel spirally-wound pipe the other end external diameter.It is characterized in that: described interface section and plastic-steel spirally-wound pipe have one section to be bell-mouthed transition linkage section, and the transition linkage section is connected with the plastic-steel spirally-wound pipe circular arc is smooth with interface section.It is characterized in that: described interface section is a straight-run of pipe, and straight tube is socketed on the plastic-steel spirally-wound pipe outer side surface.It is characterized in that: described interface section is a plastic-steel spirally-wound pipe.The utility model plastic-steel spirally-wound pipe of joint socket " band " is divided into online moulding bellmouth and rolls off the production line two kinds of moulding bellmouths; Online moulding bellmouth is once Wrapping formed when the tubing production and processing; The effective length of general plastic-steel spirally-wound pipe is 6 meters, 8 meters or 10 meters, and is every at a distance from above-mentioned length when Wrapping formed, and the vary in diameter of tubing once is the external diameter OD that the inner diameter, ID of bellmouth part equals non-bellmouth part; This process be change gradually can not influence the bonding between the band; A complete plastic-steel spirally-wound pipe comprises flat segments and bellmouth part, and each root plastic-steel spirally-wound pipe all is that to hold the straight the other end level with both hands be bellmouth, only need increase the suitable seal pad at a straight end (plug) in the time of construction and both can satisfy the sealing needs with the female end socket joint then; Cost simple to operate is low; Bellmouth is whole processing good seal performance, and anti-pressure ability is strong, and it is easy to maintenance to run into emergency case; The moulding bellmouth that rolls off the production line is exactly to produce socket pipe and conventional plastic-steel spirally-wound pipe respectively; Conventional plastic-steel spirally-wound pipe does not contain the bellmouth part; The internal diameter of socket pipe equals the external diameter of conventional plastic-steel spirally-wound pipe, as required socket pipe is cut into the length that bellmouth needs, and bellmouth partly is welded on of conventional plastic-steel spirally-wound pipe through an extrusion apparatus then; Plastic-steel spirally-wound pipe with routine during welding injects in the socket pipe; Be that outer socket pipe coats the conventional entwining tube of internal layer, each root plastic-steel spirally-wound pipe all is that to hold the straight the other end level with both hands be bellmouth like this, and only need dock during construction both can be very convenient; In addition socket pipe increased connection part bearing capacity especially from the pressure of outside, well protecting connection part; No matter the online moulding bellmouth or the moulding bellmouth that rolls off the production line all are when the entwining tube production and processing, to accomplish, do not need to do at the construction field (site) complicated procedures of forming.
Description of drawings
Fig. 1 is the structural drawing that existing stainless stirrup connects plastic-steel spirally-wound pipe.
Fig. 2 is the structural drawing that existing Electric thermal smelting belt connects plastic-steel spirally-wound pipe.
Fig. 3 is the online bellmouth plastic-steel spirally-wound pipe linkage structure exploded view of the utility model.
Fig. 4 is the bellmouth plastic-steel spirally-wound pipe linkage structure exploded view that rolls off the production line of the utility model.
Embodiment
Comprise plastic-steel spirally-wound pipe among the figure, it is characterized in that: the end at plastic-steel spirally-wound pipe has joint socket.It is characterized in that: described joint socket is the interface section that an internal diameter is a bit larger tham plastic-steel spirally-wound pipe the other end external diameter.It is characterized in that: described interface section and plastic-steel spirally-wound pipe have one section to be bell-mouthed transition linkage section, and the transition linkage section is connected with the plastic-steel spirally-wound pipe circular arc is smooth with interface section.It is characterized in that: described interface section is a straight-run of pipe, and straight tube is socketed on the plastic-steel spirally-wound pipe outer side surface.It is characterized in that: described interface section is a plastic-steel spirally-wound pipe.
Fig. 3 is the plastic-steel spirally-wound pipe long splice composition of online moulding bellmouth, the 1st, and the joint socket of plastic-steel spirally-wound pipe (inner diameter, ID 8), the 2nd, the non-female end of plastic-steel spirally-wound pipe (that is: plug external diameter OD9); The joint socket 1 of the plastic-steel spirally-wound pipe of such band bellmouth is disposable Wrapping formed through a special forming equipment; Just when the production of tubing every at a distance from needed length vary in diameter once; Constitute one section transition linkage section, external diameter OD become greater to inner diameter, ID, is the needed size of female end when OD equals or be slightly larger than ID; Accomplish the needed length of bellmouth and change to external diameter OD again; Each circulation is exactly a plastic-steel spirally-wound pipe like this, is wrapped with rubber pad 3 with 2 during installation and injects female end 1, satisfies the sealing needs.
Fig. 4 is the plastic-steel spirally-wound pipe long splice composition of moulding bellmouth of rolling off the production line, the 5th, and the joint socket of plastic-steel spirally-wound pipe (inner diameter, ID), the 4th, not with the plastic-steel spirally-wound pipe (external diameter OD) of bellmouth; The 5th, independent machine shaping; 5 length is needed bellmouth length, and ID equals or is slightly larger than OD, through an extrusion equipment with adhesive 6 fusions and squeeze in 4 outside and 5 inside; Bond together 4 and 5; Accomplish the making of an enlarging, be wrapped with rubber pad 7 with 4 during installation and inject socket pipe 5, installation.
The plastic-steel spirally-wound pipe of joint socket " band " of the utility model is divided into online moulding bellmouth and rolls off the production line two kinds of moulding bellmouths; Online moulding bellmouth is once Wrapping formed when the tubing production and processing; The effective length of general plastic-steel spirally-wound pipe is 6 meters, 8 meters or 10 meters, and is every at a distance from above-mentioned length when Wrapping formed, and the vary in diameter of tubing once is the external diameter OD that the inner diameter, ID of bellmouth part equals non-bellmouth part; This process be change gradually can not influence the bonding between the band; A complete plastic-steel spirally-wound pipe comprises flat segments and bellmouth part, and each root plastic-steel spirally-wound pipe all is that to hold the straight the other end level with both hands be bellmouth, only need increase the suitable seal pad at a straight end (plug) in the time of construction and both can satisfy the sealing needs with the female end socket joint then; Cost simple to operate is low; Bellmouth is whole processing good seal performance, and anti-pressure ability is strong, and it is easy to maintenance to run into emergency case; The moulding bellmouth that rolls off the production line is exactly to produce socket pipe and conventional plastic-steel spirally-wound pipe respectively; Conventional plastic-steel spirally-wound pipe does not contain the bellmouth part; The internal diameter of socket pipe equals the external diameter of conventional plastic-steel spirally-wound pipe, as required socket pipe is cut into the length that bellmouth needs, and bellmouth partly is welded on of conventional plastic-steel spirally-wound pipe through an extrusion apparatus then; Plastic-steel spirally-wound pipe with routine during welding injects in the socket pipe; Be that outer socket pipe coats the conventional entwining tube of internal layer, each root plastic-steel spirally-wound pipe all is that to hold the straight the other end level with both hands be bellmouth like this, and only need dock during construction both can be very convenient; In addition socket pipe increased connection part bearing capacity especially from the pressure of outside, well protecting connection part; No matter the online moulding bellmouth or the moulding bellmouth that rolls off the production line all are when the entwining tube production and processing, to accomplish, do not need to do at the construction field (site) complicated procedures of forming.