CN209762476U

CN209762476U - Flexible pipe

Info

Publication number: CN209762476U
Application number: CN201822244347.7U
Authority: CN
Inventors: 罗孝亮
Original assignee: Shenzhen Noire Hose Co Ltd
Current assignee: Shenzhen Noire Hose Co Ltd
Priority date: 2018-12-28
Filing date: 2018-12-28
Publication date: 2019-12-10
Anticipated expiration: 2028-12-28

Abstract

The utility model discloses a hose, including soft barrel and spiral helicine stereoplasm muscles and bones, the stereoplasm muscles and bones bond in the surface of soft barrel or bond in the internal surface of soft barrel or inlay and locate in the soft barrel. The utility model discloses a hose bonds in soft barrel's surface or bonds in soft barrel's internal surface or inlays and locate soft barrel through setting up spiral helicine stereoplasm muscles and bones for this hose mechanical properties is more excellent, and the atress is difficult to warp, and holistic rigidity and elasticity degree are all better, have great application range.

Description

Flexible pipe

Technical Field

The utility model relates to the field of pipelines, especially, relate to a hose.

Background

Hoses are widely used in many devices due to their ease of installation and large bending space. However, the existing hoses, such as single-material spiral pipes or corrugated pipes, have poor mechanical properties, are easily deformed under pressure, are easily broken and fractured, and have narrow application range.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model discloses a hose for solve the problems that the mechanical property of the existing hose is poor and the pressure is easy to deform.

the utility model discloses a following technical scheme realizes:

A hose comprises a soft barrel body and a spiral hard rib, wherein the hard rib is adhered to the outer surface of the soft barrel body or the inner surface of the soft barrel body or embedded in the soft barrel body.

Preferably, the soft cylinder is a tubular component formed by winding an extruded thermoplastic plastic belt on a metal flexible shaft cylindrical die and then cooling.

Preferably, the hard rib is a spiral component formed by adhering an extruded thermoplastic plastic strip to the outer surface of the soft cylinder or adhering to the inner surface of the soft cylinder or embedding the extruded thermoplastic plastic strip in the soft cylinder.

Preferably, the hard ribs are embedded in the soft cylinder, and the hose further comprises a woven layer embedded on the periphery of the soft cylinder.

Preferably, the outer side wall of the soft cylinder is formed with a spiral protrusion overlapping with the spiral track of the hard rib, and the woven layer comprises a first braided wire spirally extending along the side of the spiral protrusion.

Preferably, the first braided wire is provided with two pieces, and the two pieces of the first braided wire extend spirally along both sides of the spiral protrusion.

Preferably, the weaving layer still includes a plurality of edges the second braided wire of hose axial direction extension, and a plurality of the second braided wire is followed the circumferencial direction interval of hose sets up.

Preferably, the hard ribs are adhered to the outer surface of the soft cylinder, and the cross section of the hard ribs is semicircular or rectangular.

preferably, the hard ribs are embedded in the soft barrel, and the cross section of the hard ribs is circular, semicircular, elliptical, rectangular or rhombic.

Preferably, the hard rib forms a spiral groove on the periphery of the hose, and a portion of the soft cylinder corresponding to the spiral groove is protruded outwards.

Compared with the prior art, the beneficial effects of the utility model reside in that:

The utility model discloses a hose bonds in soft barrel's surface or bonds in soft barrel's internal surface or inlays and locate soft barrel through setting up spiral helicine stereoplasm muscles and bones for this hose mechanical properties is more excellent, and the atress is difficult to warp, and holistic rigidity and elasticity degree are all better, have great application range.

Drawings

Fig. 1 is a schematic side view of a hose according to an embodiment of the present invention;

fig. 2 is a schematic partial cross-sectional view of a hose according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

Fig. 4 is a schematic cross-sectional view of a variant design of a hose according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at B;

Fig. 6 is a schematic axial sectional partial structure view of a hose according to a second embodiment of the present invention;

Fig. 7 is a schematic axial sectional partial structure view of a hose according to a third embodiment of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 8 at C;

Fig. 9 is a schematic cross-sectional view of a design of a hose according to a third embodiment of the present invention;

Fig. 10 is a schematic cross-sectional view of another design variant of the hose according to the third embodiment of the present invention;

Fig. 11 is a schematic cross-sectional view of another design variant of the hose according to the third embodiment of the present invention.

Detailed Description

the present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

The first embodiment is as follows:

referring to fig. 1-3, an embodiment of the present invention discloses a hose, which includes a soft cylinder 11 and a spiral hard rib 12, wherein the hard rib 12 is adhered to an outer surface of the soft cylinder 11. The spiral hard ribs 12 are adhered to the outer surface of the soft barrel 11, so that the hose has the advantages of excellent mechanical property, difficult deformation under stress, good integral rigidity and elasticity and wide application range.

As an improvement of this embodiment, the soft cylinder 11 is a tubular member formed by winding an extruded thermoplastic plastic strip around a metal flexible shaft cylindrical mold and then cooling the extruded thermoplastic plastic strip. Because the soft cylinder body 11 is made of thermoplastic plastics, the hose has the advantages of good elasticity, compression deformation resistance, aging resistance, wide application temperature range (-60 ℃ -150 ℃), excellent processability and environmental protection.

As a modification of this embodiment, the hard ribs 12 are spiral members formed by bonding extruded thermoplastic plastic strips to the outer surface of the soft cylinder 11.

Specifically, the soft cylinder 11 is a PC cylinder, a PVC cylinder, a PE cylinder, a TPU cylinder, a TPE cylinder, a TPEE cylinder, or a TPV cylinder.

specifically, the rigid rib 12 is a PVC spiral part, a PU spiral part, a PP spiral part, a TPV spiral part, a TPU spiral part, a TPE spiral part, a TPEE spiral part, or a steel wire spiral part.

as a modification of this embodiment, the cross-sectional shape of the rigid ribs 12 is rectangular. It is understood that the cross-sectional shape of the rigid ribs 12 is not limited to a rectangle, but may be a semicircle as shown in fig. 4.

Referring to fig. 4-5, as a modified manner of this embodiment, the hard rib 12 forms a spiral groove 121 on the outer circumference of the soft tube 10, and the portion of the soft cylinder 11 corresponding to the spiral groove 121 is protruded outward. With this design, when the hose is buckled, the part of the soft cylinder 11 corresponding to the spiral groove 121 will be protruded outwards and will not be sunken towards the inner diameter of the hose, so that compared with the existing hose, when the hose is buckled, the inner diameter is relatively flat, which is convenient for conveying objects.

As a modification of this embodiment, the inner wall of the hose is smooth or micro-corrugated.

example two:

Referring to fig. 6, the hose provided in the present embodiment is different from the hose provided in the first embodiment in that: in this embodiment, the hard ribs 22 are adhered to the inner surface of the soft cylinder 21.

as a modification of this embodiment, the cross-sectional shape of the hard ribs 22 is circular, elliptical, or rectangular.

Example three:

Referring to fig. 7-8, the hose according to the present embodiment is different from the hose according to the first embodiment in that: in this embodiment, the hard ribs 32 are embedded in the soft cylinder 31.

Specifically, the soft cylinder 31 includes a first soft cylinder 311 and a second soft cylinder 312 wrapped around the first soft cylinder 311, and the hard rib 32 is embedded between the first soft cylinder 311 and the second soft cylinder 312. In the actual manufacturing process, firstly, the extruded first thermoplastic plastic belt is wound on the metal flexible shaft cylindrical die, then, the extruded thermoplastic plastic strip is spirally bonded on the periphery of the first thermoplastic plastic belt, then, the extruded second thermoplastic plastic belt is wound on the thermoplastic plastic strip, and finally, the whole body is cooled and molded. Specifically, the first thermoplastic plastic strip is cooled to form the first flexible cylinder 311, the second thermoplastic plastic strip is cooled to form the second flexible cylinder 312, and the first flexible cylinder 311 and the second flexible cylinder 312 are adhered and fixed.

As a modification of this embodiment, the cross-sectional shape of the hard ribs 32 is circular.

Referring to fig. 9-10, it is understood that the cross-sectional shape of the rigid ribs 32 is not limited to circular, but may be semicircular, elliptical, rectangular, or diamond.

Referring to fig. 11, as an improvement of this embodiment, the hose further includes a braided layer 33 embedded in the outer periphery of the second soft cylinder 312, the outer side wall of the soft cylinder 31 is formed with a spiral protrusion 3121 overlapping with the spiral track of the hard rib 12, and the braided layer 33 includes a first braided wire 331 extending spirally along the side of the spiral protrusion 3121. By embedding the braided layer 33 on the outer periphery of the second soft cylinder 312, the braided layer 33 can effectively improve the positive pressure resistance, negative pressure resistance and tensile resistance of the hose, prolong the service life of the hose and enlarge the application range of the hose.

Preferably, the first braided wire 331 is provided in two pieces, and the two pieces of the first braided wire 331 spirally extend along both sides of the spiral protrusion. By providing two first braided wires 331, the strength of the hose is further enhanced.

Preferably, the braided layer 33 further includes a plurality of second braided wires 332 extending along the axial direction of the hose, and the plurality of second braided wires 332 are arranged at intervals along the circumferential direction of the hose.

Preferably, the first and second weaving wires 331 and 332 are polyester wires. The polyester yarn has the advantages of high strength, good elasticity and good heat resistance, so that the hose has better positive pressure resistance, negative pressure resistance and tensile resistance.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A hose is characterized by comprising a soft barrel and a spiral hard rib, wherein the hard rib is adhered to the outer surface of the soft barrel or adhered to the inner surface of the soft barrel or embedded in the soft barrel.

2. The hose of claim 1, wherein the flexible body is a tubular member formed by winding an extruded thermoplastic strip around a metal flexible shaft cylindrical mold and cooling the extruded thermoplastic strip.

3. The hose of claim 1, wherein the rigid ribs are helical members formed by an extruded thermoplastic strip adhered to the outer surface of the flexible tube or adhered to the inner surface of the flexible tube or embedded in the flexible tube.

4. The hose of claim 1, wherein the rigid ribs are embedded in the flexible tube, the hose further comprising a woven layer embedded in the outer circumference of the flexible tube.

5. The hose of claim 4, wherein the outer sidewall of the soft cylinder is formed with a spiral protrusion overlapping the spiral track of the hard rib, and the braided layer includes a first braided wire spirally extending along a side of the spiral protrusion.

6. The hose of claim 5, wherein there are two of the first braided wires, the two first braided wires extending helically along both sides of the helical protrusion.

7. The hose of claim 6, wherein the braid further comprises a plurality of second braided wires extending in an axial direction of the hose, and wherein the plurality of second braided wires are spaced apart in a circumferential direction of the hose.

8. The hose according to any one of claims 1 to 7, wherein the hard ribs are bonded to the outer surface of the soft cylinder, and the cross-sectional shape of the hard ribs is semicircular or rectangular.

9. A hose according to any one of claims 1 to 7, wherein the cross-sectional shape of the rigid ribs is circular or semi-circular or elliptical or rectangular or diamond.

10. The hose according to any one of claims 1 to 7, wherein the hard ribs form spiral grooves on the outer periphery of the hose, and portions of the soft cylinder corresponding to the spiral grooves are protruded outward.