CN209245490U - A kind of composite steel wire oil pipe - Google Patents

Abstract

The utility model discloses a kind of composite steel wire oil pipe, including inner core tube, it is successively arranged soft braiding layer and steel wire braid outside inner core tube, steel wire braid is externally provided with outer tube.The utility model is beneficial in that first weaves soft braiding layer in inner core tube, it is allowed to be bonded inner core tube even closer, then the braided steel wire braiding layer in soft braiding layer, steel wire braid is set to fit closely soft braiding layer, not consolidation problem of the steel wire floor directly with inner core tube braiding is eliminated, to reduce the swell increment of oil pipe；There is two layers of braiding layer, improves the bursting strength of steel wire oil pipe.

Description

A kind of composite steel wire oil pipe

Technical field

The utility model relates to oil pipe technical field, especially a kind of composite steel wire oil pipe.

Background technique

Composite steel wire oil pipe is using the Wrapping formed mesh skeleton of high-tensile steel wires left-and-right spiral as reinforcement, with plastics system Inner tube be matrix, and steel-wire carcass and inside and outside layer pipe are closely attached a kind of New pipe together with binding resin Material, because steel wire braid is covered by among continuous thermoplastic plastics, composite steel wire oil pipe overcomes other type of oil Manage respective disadvantage, and maintain other respective advantages of type oil pipe, have anti-corrosion, smooth low-resistance, wear-resisting, light weight, Resist the performances such as compacted performance is good, impact resistance is good.However directly there is not consolidation with core pipe braiding in stainless steel wire, can reduce oil The bursting strength of the swell increment of pipe, steel wire oil pipe is low, under sustained stress be easy cracking, reduce composite pipe reliability and Service life.

For example, publication date is on August 31st, 2018 open application No. is CN201810565972.3 in Chinese patent document Entitled " a kind of steel plastic compount steady state pipe " patent of invention, this application discloses a kind of steel plastic compount steady state pipes, it includes Inner plastic, steel pipe layer and plastic outer layer, the steel pipe layer are arranged between inner plastic and plastic outer layer, and surface is provided with Organic passivation film layer is provided with protrusion on the inner wall of the steel pipe layer, and the protrusion is arranged along the axial direction of pipeline, described convex Through-hole is offered on rising, and the axial direction in the steel pipe layer along pipeline is provided with reinforcing rib.Disadvantage is that steel pipe layer It is damascene structures with plastic layer, for inner plastic first by pressure tube expansion, the through-hole being arranged in steel pipe layer influences steel when steel pipe is pressurized Tube layer is easy spalling to the protecting effect of inner plastic.

Therefore, a kind of inner tube and the compact composite steel wire oil pipe of steel wire floor are designed just it is necessary to.

Utility model content

The utility model will overcome existing composite steel wire oil pipe inner plastic and steel wire floor to combine there are gap, and oil pipe holds The deficiency of easy spalling, provides a kind of composite steel wire oil pipe, improves the bursting strength of composite steel wire oil pipe.

To achieve the goals above, the utility model adopts the following technical solution.

A kind of composite steel wire oil pipe, including inner core tube, inner core tube are successively arranged soft braiding layer and steel wire braid, steel outside Silk braiding layer is externally provided with outer tube.Soft braiding layer is first woven in inner core tube, it is even closer to be allowed to be bonded inner core tube, then exists Braided steel wire braiding layer in soft braiding layer, makes steel wire braid fit closely soft braiding layer, eliminate steel wire floor directly with The not consolidation problem of inner core tube braiding, to reduce the swell increment of oil pipe；There is two layers of braiding layer, improves the quick-fried of steel wire oil pipe Resistance to spalling.

Preferably, inner core tube material selection nylon or Teflon material.

Preferably, soft braiding layer and outer tube select thermoplastic.Make pipe fitting that there is good electrical insulating property, prevent Aqueous, flexibility and wearability, it is excellent in cushion effect.

Preferably, soft braiding layer selects staple material.Facilitate the fitting of steel wire braid and inner core tube.

Preferably, soft braiding layer includes two unidirectional fibrous layers, two fibrous layers intersect.Soft braiding layer Two fibrous layers be cross-woven, improve the intensity of soft braiding layer, soft braiding layer enable to improve the intensity of inner core tube.

Preferably, the winding angle of one of fibrous layer of soft braiding layer and inner core tube axis is 45 degree to 80 The winding angle of degree, another fibrous layer and inner core tube axis is 10 degree to 45 degree.It is circumferential lasting to improve soft braiding layer reply The ability of stress improves the bursting strength of soft braiding layer.

Further, the winding angle of the one of fibrous layer Yu inner core tube axis of soft braiding layer is 80 degree, another The winding angle of a fibrous layer and inner core tube axis is 45 degree.

The utility model has the beneficial effect that

1, not consolidation problem of the steel wire floor directly with inner core tube braiding is eliminated, to reduce the swell increment of oil pipe；

2, there is two layers of braiding layer, improve the bursting strength of steel wire oil pipe.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is soft a kind of structural schematic diagram of embodiment of braiding layer in the utility model.

In figure: 1 21 steel wire braid of soft 2 fibrous layer of braiding layer of inner core tube, 3 outer tube 4.

Specific embodiment

The utility model is described further in the following with reference to the drawings and specific embodiments.

In Fig. 1 to 2, a kind of composite steel wire oil pipe, including inner core tube 1, inner core tube 1 are successively arranged soft 2 He of braiding layer outside Steel wire braid 3, steel wire braid 3 are externally provided with outer tube 4.1 material selection nylon of inner core tube or Teflon material.Soft braiding Layer 2 and outer tube 4 select thermoplastic.Staple material also can be selected in soft braiding layer 2.

As shown in Fig. 2, soft braiding layer 2 includes two unidirectional fibrous layers 21, two fibrous layers 21 intersect, soft The winding angle of one of fibrous layer 21 of braiding layer and 1 axis of inner core tube is 45 degree to 80 degree, another fibrous layer 21 and The winding angle of 1 axis of inner core tube is 10 degree to 45 degree.The one of fibrous layer 21 and 1 axis of inner core tube of soft braiding layer 2 Winding angle α be 80 degree, the winding angle γ of another fibrous layer 21 and 1 axis of inner core tube is 45 degree.

Above-mentioned thermoplastic is specially polyvinyl chloride, polyethylene, polypropylene etc..Preferably, outer tube 4 uses high density Outer layer of polyethene makes pipe fitting have good electrical insulating property, waterproofness, flexibility and wearability, excellent in cushion effect.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the protection scope of the utility model.

Claims (7)

1. a kind of composite steel wire oil pipe, including inner core tube, characterized in that be successively arranged soft braiding layer and steel outside the inner core tube Silk braiding layer, steel wire braid are externally provided with outer tube.

2. a kind of composite steel wire oil pipe according to claim 1, characterized in that the inner core tube material selection nylon or iron Fluorine dragon material.

3. a kind of composite steel wire oil pipe according to claim 1, characterized in that the soft braiding layer and outer tube are selected Thermoplastic.

4. a kind of composite steel wire oil pipe according to claim 1, characterized in that the soft braiding layer selects staple material Material.

5. a kind of composite steel wire oil pipe according to claim 3, characterized in that the soft braiding layer includes two unidirectional Fibrous layer, two fibrous layers intersect.

6. a kind of composite steel wire oil pipe according to claim 5, characterized in that one of fibre of the soft braiding layer The winding angle for tieing up layer and inner core tube axis is 45 degree to 80 degree, and the winding angle of another fibrous layer and inner core tube axis is 10 It spends to 45 degree.

7. a kind of composite steel wire oil pipe according to claim 6, characterized in that one of fibre of the soft braiding layer The winding angle for tieing up layer and inner core tube axis is 80 degree, and the winding angle of another fibrous layer and inner core tube axis is 45 degree.