NZ742354B - Flexible expandable hose - Google Patents
Flexible expandable hoseInfo
- Publication number
- NZ742354B NZ742354B NZ742354A NZ74235418A NZ742354B NZ 742354 B NZ742354 B NZ 742354B NZ 742354 A NZ742354 A NZ 742354A NZ 74235418 A NZ74235418 A NZ 74235418A NZ 742354 B NZ742354 B NZ 742354B
- Authority
- NZ
- New Zealand
- Prior art keywords
- flexible
- spiral thread
- hose
- layers
- woven mesh
- Prior art date
Links
- 229920000126 Latex Polymers 0.000 claims description 11
- 239000004816 latex Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 239000004677 Nylon Substances 0.000 claims description 5
- 241000218970 Pepper golden mosaic virus - [Mexico] Species 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 50
- 239000004744 fabric Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000000452 restraining Effects 0.000 description 1
- 239000002965 rope Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The present utility model relates to the technical field of expandable hoses, and relates to a flexible expandable hose, comprising a flexible hose made of flexible bodies. More than two spiral thread layers or woven mesh layers that can extend or retract as the flexible hose extends or retracts are disposed in the flexible hose. When the spiral thread layers are disposed, spiral directions of two adjacent spiral thread layers are opposite, an outer diameter of an outermost spiral thread layer or woven mesh layer is less than an outer diameter of the flexible hose, and an inner diameter of an innermost spiral thread layer or woven mesh layer is less than an inner diameter of the flexible hose. The advantages comprise a light weight, a large expansion amount, high tensile strength, and a long service life. disposed in the flexible hose. When the spiral thread layers are disposed, spiral directions of two adjacent spiral thread layers are opposite, an outer diameter of an outermost spiral thread layer or woven mesh layer is less than an outer diameter of the flexible hose, and an inner diameter of an innermost spiral thread layer or woven mesh layer is less than an inner diameter of the flexible hose. The advantages comprise a light weight, a large expansion amount, high tensile strength, and a long service life.
Description
Description
Flexible expandable hose
Technical Field
The present invention relates to the technical field of expandable hoses, and
in particular, to a flexible expandable hose.
Background of the Invention
Expandable hoses can be retracted when not in use and be extended in use, and
are therefore popular among users related to car washing hoses, household use, and
the like. A currently used long water hose is stacked on the ground and becomes
entangled easily. Passers-by easily trip over the water hose, or tread on the water
hose, resulting in a reduced service life of the water hose. Such problems are
resolved by expandable hoses. A common commercially-available expandable hose
has the following structure: A latex tube is sleeved in a fabric tube. The latex tube is
shorter than the fabric tube. The fabric tube is stacked outside the latex tube. The
fabric tube may extend in an axial direction as the latex tube extends and expand in
a radial direction as the latex tube expands, so as to restrict the latex tube from
limitlessly expanding in the radial direction.
Alternatively, a threaded expandable hose is sleeved in the fabric tube. For
example, CN 203836417 U discloses a novel expandable hose, comprising an outer
tube and an expandable rib disposed in an inner cavity of the outer tube. The outer
tube is a fabric tube. The expandable rib can extend in an axial direction in the outer
tube. The expandable rib is shorter than the outer tube. The outer tube can extend or
retract in the axial direction as the expandable rib extends. The deficiencies of such
an expandable hose are as follows: First, the fabric tube becomes heavy with water,
and bacteria and the like grow easily. Second, the fabric tube becomes muddy easily,
making it difficult to clean. Third, an axial expansion amount is small. Fourth, the
fabric outer tube does not fold readily and results in a large volume in storage.
Summary of the Invention
The objective of the present invention is to provide a flexible expandable
hose that is easy to clean and has a large expansion amount and a smooth surface.
The objective of the present invention is achieved as follows:
A flexible expandable hose comprises a flexible hose made of flexible bodies.
More than two spiral thread layers or woven mesh layers that can extend or retract
as the flexible hose extends or retracts are disposed in the flexible hose. When the
spiral thread layers are disposed, spiral directions of two adjacent spiral thread
layers are opposite, an outer diameter of an outermost spiral thread layer or woven
mesh layer is less than an outer diameter of the flexible hose, and an inner diameter
of an innermost spiral thread layer or woven mesh layer is more than an inner
diameter of the flexible hose.
The spiral thread layers or woven mesh layers are woven with spiral threads,
when the flexible hose is in a normal state, a particular axial distance exists between
two axially adjacent spiral threads, a particular radial distance exists between two
adjacent spiral thread layers or woven mesh layers, and the axial distances and the
radial distances are all filled with the flexible bodies integrated with the flexible
hose.
Each of the spiral threads is woven with more than one strong thread or strong
band.
The strong thread or strong band is made of a polyester or nylon material.
The flexible bodies are made of a TPE or TPV or silica gel or latex material.
Compared with the prior art, the present invention has the prominent and
beneficial technical effects as follows:
1. Both an inner surface layer and an outer surface layer of the present invention
are made of a same TPE or TPV or silica gel or latex material, so that only a small
amount of water stays on the present invention, and it is easy to clean and
dry the invention, thereby preventing the proliferation of bacteria.
2. In the present invention, flexible bodies are made of TPE, TPV, silica
gel, latex or other materials, so that an elastic deformation amount is large, and a
small volume is occupied in a normal state for easy storage.
3. The present invention has a smooth surface on which mud does not
stick easily, so that self-cleaning performance is desirable and use and storage are
facilitated.
4. A rope or band made of a polyester or nylon material is used for a force
supporting element in the present invention, so that a flexible hose manufactured
to fit the flexible bodies has a light weight, a large expansion amount, high tensile
strength, and a long service life.
Brief Description of the Drawings
Fig. 1 is a schematic structural sectional view of the present invention .
Detailed Description
The present invention is further described in conjunction with the drawingsand
particular embodiments as below. Refer to Figs. 1:
A flexible expandable hose comprises a flexible hose 10 made of flexible
bodies. More than two spiral thread layers 20, 30 or woven mesh layers that can
extend or retract as the flexible hose 10 extends or retracts are disposed in the
flexible hose 10. When the spiral thread layers are disposed, spiral directions of two
adjacent spiral thread layers 20, 30 are opposite, an outer diameter D2 of an
outermost spiral thread layer 20 or woven mesh layer is less than an outer diameter
D1 of the flexible hose 10, and an inner diameter D3 of an innermost spiral thread
layer 13 or woven mesh layer is more than an inner diameter D4 of the flexible
hose 10.
When pressurized water is filled in the flexible hose 10 to make the flexible
hose 10 deform in a radial direction, a distance between two adjacent spiral thread
layers 20, 30 is reduced, and spiral directions of two adjacent spiral thread layers 20,
30 are opposite, so that criss-cross woven mesh is formed. In addition, spiral threads
woven with strong threads or strong bands have high tensile strength and can be
barely stretched, so that radial deformation of the flexible hose 10 is restricted.
Therefore, the flexible hose 10 is protected from bursting under the effect of
pressurized water.
Certainly, when the more than two woven mesh layers that can extend or
retract as the flexible hose 10 extends or retracts are disposed in the flexible hose 10,
the woven mesh is pulled by the flexible bodies, and the woven mesh itself has a
restraining force, radial deformation is better restricted. However, the deficiency is
that as compared with a spiral thread layer, a woven mesh has a limited axial
deformation amount. In other words, an axial deformation amount of a woven mesh
layer is less than that of a spiral thread layer, and a customer may make a choice in
use.
The strong thread or strong band is made of a polyester or nylon material.
The spiral thread layers 20, 30 or woven mesh layers are woven with spiral
threads. When the flexible hose 10 is in a normal state, a particular axial distance
exists between two axially adjacent spiral threads, a particular radial distance L1
exists between two adjacent spiral thread layers 20, 30 or woven mesh layers, and
the axial distances and the radial distances L1 are all filled with the flexible bodies
integrated with the flexible hose 10.
When the radial distance L1 between two adjacent spiral thread layers 20, 30
or woven mesh layers is larger, because two adjacent spiral thread layers 20, 30 or
woven mesh layers are less restricted by each other, an elastic deformation amount
is larger, or otherwise an elastic deformation amount is smaller.
Each of the spiral threads is woven with more than one strong thread or strong
band.
The strong thread or strong band is made of a polyester or nylon material.
The flexible bodies are made of a TPE or TPV or silica gel or latex material.
A production process of a flexible expandable hose comprises the following
steps:
(1) forming a flexible inner tube 13 with an elastic material;
(2) winding an inner spiral thread layer 30 around an outer surface of the
flexible inner tube 13 in a forward direction or/and backward direction; or weaving
an inner woven mesh layer on an outer surface of the flexible inner tube 13;
(3) forming, on an outer surface of the flexible inner tube 13 and the inner
spiral thread layer 30 or inner woven mesh layer, a first flexible body 14 covering
the inner spiral thread layer or inner woven mesh layer;
(4) winding a second spiral thread layer 20 around an outer surface of the first
flexible body 14 in a forward direction or/and backward direction; or weaving a
second woven mesh layer on an outer surface of the first flexible body 14;
(5) forming, on an outer surface of the first flexible body 14 and the second
spiral thread layer 20 or second woven mesh layer, a second flexible body 11
covering the second spiral thread layer 20 or second woven mesh layer; and
(6) as deduced by analogy, forming, on an outer surface of an outermost spiral
thread layer 20 or woven mesh layer and a last flexible body 11, a flexible outer
tube 12 covering the outermost spiral thread layer 20 or woven mesh layer and the
last flexible body 14.
The embodiments described above are merely the preferred embodiments of
the present invention, and are not intended to limit the scope of protection of the
present invention, and therefore, equivalent changes made according to the
structure, shape and principle of the present invention shall be contained within the
scope of protection of the present invention.
Claims (5)
1. A flexible expandable hose, comprising a flexible hose made of flexible bodies, wherein more than two spiral thread layers or woven mesh layers capable of 5 extending or retracting as the flexible hose extends or retracts are disposed in the flexible hose, and when the spiral thread layers are disposed, spiral directions of two adjacent spiral thread layers are opposite, an outer diameter of an outermost spiral thread layer or woven mesh layer is less than an outer diameter of the flexible hose, and an inner diameter of an innermost spiral thread layer or woven mesh layer is 10 more than an inner diameter of the flexible hose.
2. The flexible expandable hose according to claim 1, wherein the spiral thread layers or woven mesh layers are woven with spiral threads, when the flexible hose is in a normal state, a particular axial distance exists between two axially 15 adjacent spiral threads, a particular radial distance exists between two adjacent spiral thread layers or woven mesh layers, and the axial distances and the radial distances are all filled with the flexible bodies integrated with the flexible hose.
3. The flexible expandable hose according to claim 2, wherein each of the 20 spiral threads is woven with more than one strong thread or strong band.
4. The flexible expandable hose according to claim 1, wherein the strong thread or strong band is made of a polyester or nylon material. 25
5. The flexible expandable hose according to any one of claims 1 to 4, wherein the flexible bodies are made of a TPE or TPV or silica gel or latex material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720904460.6 | 2017-07-25 | ||
| CN201720904460.6U CN207161912U (en) | 2017-07-25 | 2017-07-25 | A kind of elastic telescopic pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ742354A NZ742354A (en) | 2019-07-26 |
| NZ742354B true NZ742354B (en) | 2019-10-30 |
Family
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