CA2871894C - Hose-joint combination - Google Patents
Hose-joint combination Download PDFInfo
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- CA2871894C CA2871894C CA2871894A CA2871894A CA2871894C CA 2871894 C CA2871894 C CA 2871894C CA 2871894 A CA2871894 A CA 2871894A CA 2871894 A CA2871894 A CA 2871894A CA 2871894 C CA2871894 C CA 2871894C
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Abstract
A hose-joint combination includes an axially extensible hose unit and a joint. The joint includes a cylinder, a C-clip and a ring. The cylinder includes a thread and a nozzle. The nozzle includes a neck and a head. The C-clip is placed on a first section of the axially extensible hose unit so that a second section of the axially extensible hose unit is placed between a front end of the C-clip and a rear face of the head. Moreover, a fold between the first and second sections of the axially extensible hose unit is stuck between the nozzle and the C-clip. The ring includes a thread engaged with the thread of the cylinder and a first frusto-conical face in contact with the frusto-conical external face of the neck to force the C-clip to press the first section of the axially extensible hose unit on the neck.
Description
Hose-Joint Combination BACKGROUND OF INVENTION
1. FIELD OF INVENTION
The present invention relates to a hose and, more particularly, to a combination of an axially extensible hose with a reliable joint.
1. FIELD OF INVENTION
The present invention relates to a hose and, more particularly, to a combination of an axially extensible hose with a reliable joint.
2. RELATED PRIOR ART
Referring to FIGS. 9 to 12, a conventional joint 900 includes a cylinder 920 and a ring 940. The cylinder 920 includes a nozzle 922 that is shaped like a mushroom. In operation, the cylinder 920 is connected to a faucet. An expansible hose 960 is inserted through the ring 940. The nozzle 922 is inserted in the expansible hose 960. The ring 940 includes, on an internal side, a thread engaged with a thread formed on an external side of the cylinder 920 so that the ring 940 is connected to the cylinder 920. Two things are expected. At first, the expansible hose 960 is expected to be firmly joined to the joint 900.
Secondly, there is expected to be no leak. However, the joint 900 does not come up to the expectations. The gap between the ring 940 and the nozzle 922 is constant while the thickness of the expansible hose 960 is reduced as the length and diameter of the expansible hose 960 are increased in operation. Hence, there is leak. Moreover, the expansible hose 960 could easily be detached from the joint 900.
A conventional hose unit includes a hose inserted in a sheath. The hose is expansible while the sheath is not. The external diameter of the hose is smaller than the internal diameter of the sheath when the hose is not expanded. Hence, there is a gap between the internal and sheaths.
The gap allows the hose to expand when the hose is filled with water.
The expansion of the hose in the radial direction suppresses the expansion of the hose in the axial direction. The length of the hose is smaller than that of the sheath when the hose is not expanded. When the hose is not expanded, there are inevitably wrinkles on the sheath because the sheath does not shrink. The wrinkles render the conventional hose unit aesthetically unpleasant. Moreover, it is difficult to turn the hose unit into a roll. The hose becomes too thin to survive high hydraulic pressure when it is filled with water.
The present invention is therefore intended to obviate or at least alleviate the problems encountered in the prior art.
SUMMARY OF INVENTION
It is the primary objective of the present invention to provide a neat and reliable hose-joint combination.
To achieve the foregoing objective, the hose-joint combination includes an axially extensible hose unit and a joint. The joint includes a cylinder, a C-clip and a ring. The cylinder includes a thread and a nozzle. The nozzle includes a neck and a head. The C-clip is placed on a first section of the axially extensible hose unit so that a second section of the axially extensible hose unit is placed between a front end of the C-clip and a rear face of the head. Moreover, a fold between the first and second sections of the axially extensible hose unit is stuck between the nozzle and the C-clip. The ring includes a thread engaged with the thread of the cylinder and a first frusto-conical face in contact with the frusto-conical external face of the neck to force the C-clip to press the first section of the axially extensible hose unit on the neck.
Accordingly, in one aspect the present invention resides in a hose-joint combination including: a hose unit including first, second, third and fourth sections;
and a joint including: a cylinder formed with a thread and a nozzle, wherein the nozzle is formed with a neck and a head, and wherein the head is formed with a rear face and a front face; a C-clip formed with a front end and a frusto-conical external face, and placed on the first section of the hose unit so that the second section of the hose unit is clamped by the front end of the C-clip and the rear face of the head and that a fold between the first and second sections of the hose unit is stuck between the nozzle and the C-clip; a first ring including a thread engaged with the thread of the cylinder and a first frusto-conical face in contact with the frusto-conical external face of the C-clip to force the C-clip to press the first section of the hose unit on the neck;
and a second ring connected to the first ring and formed with a frusto-conical internal face that cooperates with an end of the first ring and the fourth section of the hose unit to provide an annular space to allow water to expand the fourth section of the hose unit and hence press an external face of the fourth section of the hose unit against the frusto-conical internal face.
Other objectives, advantages and features of the present invention 2a will be apparent from the following description referring to the attached drawings.
BRIEF DESCRIPTION OF DRAWINGS
The present invention will be described via detailed illustration of the preferred embodiment versus the prior art referring to the drawings wherein:
FIG. 1 is a perspective view of a combination of a joint with an axially extensible hose unit according to the preferred embodiment of the present invention;
FIG. 2 is a partial view of a skin of the axially extensible hose unit shown in FIG. 1;
FIG. 3 is a cross-sectional view of the hose-joint combination shown in FIG. 1;
FIG. 4 is an enlarged partial view of the hose-joint combination shown in FIG. 3;
FIG. 5 is a cross-sectional view of the axially extensible hose unit shown in FIG. 3;
FIG. 6 is a cross-sectional view of the hose-joint combination in another position than shown in FIG. 3;
FIG. 7 is an enlarged partial view of the hose-joint combination shown in FIG. 6;
FIG. 8 is a cross-sectional view of the axially extensible hose unit shown in FIG. 6;
FIG. 9 is a perspective view of a conventional joint;
FIG. 10 is an exploded view of the joint shown in FIG. 9;
FIG. 11 is a cross-sectional view of the joint shown in FIG. 9 and an
Referring to FIGS. 9 to 12, a conventional joint 900 includes a cylinder 920 and a ring 940. The cylinder 920 includes a nozzle 922 that is shaped like a mushroom. In operation, the cylinder 920 is connected to a faucet. An expansible hose 960 is inserted through the ring 940. The nozzle 922 is inserted in the expansible hose 960. The ring 940 includes, on an internal side, a thread engaged with a thread formed on an external side of the cylinder 920 so that the ring 940 is connected to the cylinder 920. Two things are expected. At first, the expansible hose 960 is expected to be firmly joined to the joint 900.
Secondly, there is expected to be no leak. However, the joint 900 does not come up to the expectations. The gap between the ring 940 and the nozzle 922 is constant while the thickness of the expansible hose 960 is reduced as the length and diameter of the expansible hose 960 are increased in operation. Hence, there is leak. Moreover, the expansible hose 960 could easily be detached from the joint 900.
A conventional hose unit includes a hose inserted in a sheath. The hose is expansible while the sheath is not. The external diameter of the hose is smaller than the internal diameter of the sheath when the hose is not expanded. Hence, there is a gap between the internal and sheaths.
The gap allows the hose to expand when the hose is filled with water.
The expansion of the hose in the radial direction suppresses the expansion of the hose in the axial direction. The length of the hose is smaller than that of the sheath when the hose is not expanded. When the hose is not expanded, there are inevitably wrinkles on the sheath because the sheath does not shrink. The wrinkles render the conventional hose unit aesthetically unpleasant. Moreover, it is difficult to turn the hose unit into a roll. The hose becomes too thin to survive high hydraulic pressure when it is filled with water.
The present invention is therefore intended to obviate or at least alleviate the problems encountered in the prior art.
SUMMARY OF INVENTION
It is the primary objective of the present invention to provide a neat and reliable hose-joint combination.
To achieve the foregoing objective, the hose-joint combination includes an axially extensible hose unit and a joint. The joint includes a cylinder, a C-clip and a ring. The cylinder includes a thread and a nozzle. The nozzle includes a neck and a head. The C-clip is placed on a first section of the axially extensible hose unit so that a second section of the axially extensible hose unit is placed between a front end of the C-clip and a rear face of the head. Moreover, a fold between the first and second sections of the axially extensible hose unit is stuck between the nozzle and the C-clip. The ring includes a thread engaged with the thread of the cylinder and a first frusto-conical face in contact with the frusto-conical external face of the neck to force the C-clip to press the first section of the axially extensible hose unit on the neck.
Accordingly, in one aspect the present invention resides in a hose-joint combination including: a hose unit including first, second, third and fourth sections;
and a joint including: a cylinder formed with a thread and a nozzle, wherein the nozzle is formed with a neck and a head, and wherein the head is formed with a rear face and a front face; a C-clip formed with a front end and a frusto-conical external face, and placed on the first section of the hose unit so that the second section of the hose unit is clamped by the front end of the C-clip and the rear face of the head and that a fold between the first and second sections of the hose unit is stuck between the nozzle and the C-clip; a first ring including a thread engaged with the thread of the cylinder and a first frusto-conical face in contact with the frusto-conical external face of the C-clip to force the C-clip to press the first section of the hose unit on the neck;
and a second ring connected to the first ring and formed with a frusto-conical internal face that cooperates with an end of the first ring and the fourth section of the hose unit to provide an annular space to allow water to expand the fourth section of the hose unit and hence press an external face of the fourth section of the hose unit against the frusto-conical internal face.
Other objectives, advantages and features of the present invention 2a will be apparent from the following description referring to the attached drawings.
BRIEF DESCRIPTION OF DRAWINGS
The present invention will be described via detailed illustration of the preferred embodiment versus the prior art referring to the drawings wherein:
FIG. 1 is a perspective view of a combination of a joint with an axially extensible hose unit according to the preferred embodiment of the present invention;
FIG. 2 is a partial view of a skin of the axially extensible hose unit shown in FIG. 1;
FIG. 3 is a cross-sectional view of the hose-joint combination shown in FIG. 1;
FIG. 4 is an enlarged partial view of the hose-joint combination shown in FIG. 3;
FIG. 5 is a cross-sectional view of the axially extensible hose unit shown in FIG. 3;
FIG. 6 is a cross-sectional view of the hose-joint combination in another position than shown in FIG. 3;
FIG. 7 is an enlarged partial view of the hose-joint combination shown in FIG. 6;
FIG. 8 is a cross-sectional view of the axially extensible hose unit shown in FIG. 6;
FIG. 9 is a perspective view of a conventional joint;
FIG. 10 is an exploded view of the joint shown in FIG. 9;
FIG. 11 is a cross-sectional view of the joint shown in FIG. 9 and an
3 'expansible hose; and FIG. 12 is a cross-sectional view of the joint and the expansible hose in another position than shown in FIG. 11.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
Referring to FIG. 1, there is a combination of a joint 100 with an axially extensible hose unit 200 according to the preferred embodiment of the present invention. The axially extensible hose unit 200 includes a hose 212 and a sheath 214. The hose 212 is made of an elastic water-tight material so that it is expansible and can keep water therein.
Referring to FIG. 2, the sheath 214 is a tubular element made of a fabric that includes warps 220 and woofs 222. The warps 220 extend substantially parallel to the axis of the sheath 214 while the woofs 222 extend substantially perpendicular to the warps 220. The warps 220 are made of an elastic material so that they are extensible. The woofs 222 are made of a non-elastic material so that they are not extensible. Hence, the sheath 214 is axially extensible but not radially expansible.
Referring to FIG. 3, the joint 100 includes a cylinder 120, a C-clip 140 and two rings 160 and 180. The cylinder 120 includes a channel 122 through which water can run. On an external side, the cylinder 120 includes a thread 124 and a nozzle 121. The nozzle 121 includes a neck 126 and a head 128. The neck 126 is made with a diameter smaller than that of the head 128. The neck 126 includes a frusto-conical external face that shrinks toward the head 128. The head 128 includes a planar rear face 127 and a frusto-conical front face 129. There is a sharp angle between the planar rear face 127 of the head 128 and the frusto-conical external face of the neck 126. The frusto-conical front face 129 of the
DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
Referring to FIG. 1, there is a combination of a joint 100 with an axially extensible hose unit 200 according to the preferred embodiment of the present invention. The axially extensible hose unit 200 includes a hose 212 and a sheath 214. The hose 212 is made of an elastic water-tight material so that it is expansible and can keep water therein.
Referring to FIG. 2, the sheath 214 is a tubular element made of a fabric that includes warps 220 and woofs 222. The warps 220 extend substantially parallel to the axis of the sheath 214 while the woofs 222 extend substantially perpendicular to the warps 220. The warps 220 are made of an elastic material so that they are extensible. The woofs 222 are made of a non-elastic material so that they are not extensible. Hence, the sheath 214 is axially extensible but not radially expansible.
Referring to FIG. 3, the joint 100 includes a cylinder 120, a C-clip 140 and two rings 160 and 180. The cylinder 120 includes a channel 122 through which water can run. On an external side, the cylinder 120 includes a thread 124 and a nozzle 121. The nozzle 121 includes a neck 126 and a head 128. The neck 126 is made with a diameter smaller than that of the head 128. The neck 126 includes a frusto-conical external face that shrinks toward the head 128. The head 128 includes a planar rear face 127 and a frusto-conical front face 129. There is a sharp angle between the planar rear face 127 of the head 128 and the frusto-conical external face of the neck 126. The frusto-conical front face 129 of the
4 =
-head 128 shrinks as it extends from the neck 126.
The C-clip 140 is an elastic element. The C-clip 140 is formed with a frusto-conical internal face 142 and a frusto-conical external face 144.
The frusto-conical internal face 142 of the C-clip 140 is shaped in compliance with the frusto-conical external face of the neck 126.
On an internal face, the first ring 160 includes a thread 164 and two frusto-conical faces 165 and 166. The first frusto-conical face 165 is located between the second frusto-conical face 166 and the thread 164 along an axis of the first ring 160. The thread 164 is shaped and sized in compliance with the thread 124. The frusto-conical face 166 is shaped in compliance with the frusto-conical front face 129 of the head 128.
On an external face, the first ring 160 is formed with a thread 162.
On an internal face, the second ring 180 is formed with a thread 182 and a frusto-conical face 184. The thread 182 is shaped and sized in compliance with the thread 162. The frusto-conical face 184 shrinks as it extends from the thread 182.
The axially extensible hose unit 200 is inserted through the second ring 180 and the first ring 160. The nozzle 121 is inserted in the axially extensible hose unit 200.
The C-clip 140 is placed on a first section 202 of the axially extensible hose unit 200. Thus, the first section 202 of the axially extensible hose unit 200 is sandwiched between the neck 126 and the internal face 142 of the C-clip 140. Moreover, a second section 204 of the axially extensible hose unit 200 is sandwiched between the planar rear face 127 of the head 128 and a front end of the C-clip 140.
The thread 164 is engaged with the thread 124 to connect the first
-head 128 shrinks as it extends from the neck 126.
The C-clip 140 is an elastic element. The C-clip 140 is formed with a frusto-conical internal face 142 and a frusto-conical external face 144.
The frusto-conical internal face 142 of the C-clip 140 is shaped in compliance with the frusto-conical external face of the neck 126.
On an internal face, the first ring 160 includes a thread 164 and two frusto-conical faces 165 and 166. The first frusto-conical face 165 is located between the second frusto-conical face 166 and the thread 164 along an axis of the first ring 160. The thread 164 is shaped and sized in compliance with the thread 124. The frusto-conical face 166 is shaped in compliance with the frusto-conical front face 129 of the head 128.
On an external face, the first ring 160 is formed with a thread 162.
On an internal face, the second ring 180 is formed with a thread 182 and a frusto-conical face 184. The thread 182 is shaped and sized in compliance with the thread 162. The frusto-conical face 184 shrinks as it extends from the thread 182.
The axially extensible hose unit 200 is inserted through the second ring 180 and the first ring 160. The nozzle 121 is inserted in the axially extensible hose unit 200.
The C-clip 140 is placed on a first section 202 of the axially extensible hose unit 200. Thus, the first section 202 of the axially extensible hose unit 200 is sandwiched between the neck 126 and the internal face 142 of the C-clip 140. Moreover, a second section 204 of the axially extensible hose unit 200 is sandwiched between the planar rear face 127 of the head 128 and a front end of the C-clip 140.
The thread 164 is engaged with the thread 124 to connect the first
5 =
, ring 160 to the cylinder 120. Thus, a third section 206 of the axially extensible hose unit 200 is sandwiched between the front face 129 of the head 128 and the frusto-conical face 166.
The match of the frusto-conical external face of the neck 126 with the frusto-conical internal face 142 of the C-clip 140 and the match of the frusto-conical external face 144 of the C-clip 140 with the first frusto-conical face 165 of the first ring 160 squeeze the first section 202 of the axially extensible hose unit 200 tighter between the neck 126 and the C-clip 140 as the thread 164 is tighter engaged with the thread 124.
The match of the frusto-conical front face 129 of the head 128 with the second frusto-conical face 166 of the first ring 160 squeezes the third section 206 of the axially extensible hose unit 200 tighter between the head 128 and the first ring 160 as the thread 164 is tighter engaged with the thread 124.
Finally, the thread 182 is engaged with the thread 162 to connect the second ring 180 to the first ring 160.
Referring to FIGS. 3 through 5, the length of the hose 212 and the sheath 214 is at a value of L and the thickness of the hose 212 is at a value of A when the hose 212 are empty.
Referring to FIGS. 6 through 8, the axially extensible hose unit 200 is expanded by water that runs therein. The thickness of the axially extensible hose unit 200 is reduced as the length and diameter of the axially extensible hose unit 200 are increased.
This reduction however does not render the axially extensible hose unit 200 slack in the joint 100 for reasons. At first, before the axially extensible hose unit 200 is expanded, the thickness of the first section 202
, ring 160 to the cylinder 120. Thus, a third section 206 of the axially extensible hose unit 200 is sandwiched between the front face 129 of the head 128 and the frusto-conical face 166.
The match of the frusto-conical external face of the neck 126 with the frusto-conical internal face 142 of the C-clip 140 and the match of the frusto-conical external face 144 of the C-clip 140 with the first frusto-conical face 165 of the first ring 160 squeeze the first section 202 of the axially extensible hose unit 200 tighter between the neck 126 and the C-clip 140 as the thread 164 is tighter engaged with the thread 124.
The match of the frusto-conical front face 129 of the head 128 with the second frusto-conical face 166 of the first ring 160 squeezes the third section 206 of the axially extensible hose unit 200 tighter between the head 128 and the first ring 160 as the thread 164 is tighter engaged with the thread 124.
Finally, the thread 182 is engaged with the thread 162 to connect the second ring 180 to the first ring 160.
Referring to FIGS. 3 through 5, the length of the hose 212 and the sheath 214 is at a value of L and the thickness of the hose 212 is at a value of A when the hose 212 are empty.
Referring to FIGS. 6 through 8, the axially extensible hose unit 200 is expanded by water that runs therein. The thickness of the axially extensible hose unit 200 is reduced as the length and diameter of the axially extensible hose unit 200 are increased.
This reduction however does not render the axially extensible hose unit 200 slack in the joint 100 for reasons. At first, before the axially extensible hose unit 200 is expanded, the thickness of the first section 202
6 , of the axially extensible hose unit 200 is reduced since the first section 202 of the axially extensible hose unit 200 is pressed tight between the neck 126 and the C-clip 140 as mentioned above.
Secondly, before the axially extensible hose unit 200 is expanded, the thickness of the third section 206 of the axially extensible hose unit 200 is reduced since the third section 206 of the axially extensible hose unit 200 is pressed tight between the head 128 and the first ring 160 as mentioned above.
Thirdly, a fold between the first and second sections 202 and 204 of the axially extensible hose unit 200 is stuck between the nozzle 121 and the C-clip 140.
Fourthly, a fourth section 208 of the axially extensible hose unit 200 is pressed tighter against the frusto-conical face 184 of the second ring 180 as the axially extensible hose unit 200 is expanded more. Hence, the axially extensible hose unit 200 is firmly connected to the joint 100 and there is no leak.
The first and second rings 160 and 180 are made as two individual elements as they are made by mold-injection of plastics in the preferred embodiment. The first and second rings 160 and 180 can however be made in one piece if they are made of metal in another embodiment.
The length of the hose 212 and the sheath 214 is at a value of L' and the thickness of the hose 212 is at a value of A' when the hose 212 are filled with water. The value L' is larger than the value L. The value A' is smaller than the value A. The hose 212 is radially expanded to a predetermined extent so that they are restrained by the sheath 214 which is not radially expansible for using the non-expansible woofs 222.
Secondly, before the axially extensible hose unit 200 is expanded, the thickness of the third section 206 of the axially extensible hose unit 200 is reduced since the third section 206 of the axially extensible hose unit 200 is pressed tight between the head 128 and the first ring 160 as mentioned above.
Thirdly, a fold between the first and second sections 202 and 204 of the axially extensible hose unit 200 is stuck between the nozzle 121 and the C-clip 140.
Fourthly, a fourth section 208 of the axially extensible hose unit 200 is pressed tighter against the frusto-conical face 184 of the second ring 180 as the axially extensible hose unit 200 is expanded more. Hence, the axially extensible hose unit 200 is firmly connected to the joint 100 and there is no leak.
The first and second rings 160 and 180 are made as two individual elements as they are made by mold-injection of plastics in the preferred embodiment. The first and second rings 160 and 180 can however be made in one piece if they are made of metal in another embodiment.
The length of the hose 212 and the sheath 214 is at a value of L' and the thickness of the hose 212 is at a value of A' when the hose 212 are filled with water. The value L' is larger than the value L. The value A' is smaller than the value A. The hose 212 is radially expanded to a predetermined extent so that they are restrained by the sheath 214 which is not radially expansible for using the non-expansible woofs 222.
7 The axially extensible hose unit 200 exhibits several advantages over the prior art. At first, the external sides of the hose 212 can be supported by the internal side of the sheath 214 when the hose 212 is expanded. The radial expansion of the hose 212 is limited to the predetermined extent since they are restrained by the sheath 214 which is not radially expansible for using the non-expansible woofs 222.
Secondly, the length of the hose 212 is identical to that of the sheath 214 when the hose 212 is not expanded, i.e., not filled with water. There is no wrinkle on the sheath 214. Hence, the axially extensible hose unit 200 is neat and aesthetically pleasant. Moreover, it is easy to turn the axially extensible hose unit 200 into a roll.
Thirdly, the hose 212 is radially expansible to the predetermined extent since they are restrained by the sheath 214 which is not radially expansible for using the non-expansible woofs 222. Therefore, the hose 212 expands axially more than radially.
Fourthly, the hose 212 would not become too thin when they are filled with water because their expansion is mostly in the axial direction.
Hence, the hose 212 would survive higher hydraulic pressure than the prior art.
The present invention has been described via the detailed illustration of the preferred embodiment. Those skilled in the art can derive variations from the preferred embodiment without departing from the scope of the present invention. Therefore, the preferred embodiment shall not limit the scope of the present invention defined in the claims.
Secondly, the length of the hose 212 is identical to that of the sheath 214 when the hose 212 is not expanded, i.e., not filled with water. There is no wrinkle on the sheath 214. Hence, the axially extensible hose unit 200 is neat and aesthetically pleasant. Moreover, it is easy to turn the axially extensible hose unit 200 into a roll.
Thirdly, the hose 212 is radially expansible to the predetermined extent since they are restrained by the sheath 214 which is not radially expansible for using the non-expansible woofs 222. Therefore, the hose 212 expands axially more than radially.
Fourthly, the hose 212 would not become too thin when they are filled with water because their expansion is mostly in the axial direction.
Hence, the hose 212 would survive higher hydraulic pressure than the prior art.
The present invention has been described via the detailed illustration of the preferred embodiment. Those skilled in the art can derive variations from the preferred embodiment without departing from the scope of the present invention. Therefore, the preferred embodiment shall not limit the scope of the present invention defined in the claims.
8
Claims (8)
1. A hose-joint combination including:
a hose unit (200) including first, second, third and fourth sections (202/204/206/208); and a joint (100) including:
a cylinder (120) formed with a thread (124) and a nozzle (121), wherein the nozzle (121) is formed with a neck (126) and a head (128), and wherein the head (128) is formed with a rear face (127) and a front face (129);
a C-clip (140) formed with a front end and a frusto-conical external face (144), and placed on the first section (202) of the hose unit (200) so that the second section (204) of the hose unit (200) is clamped by the front end of the C-clip (140) and the rear face (127) of the head (128) and that a fold between the first and second sections (202/204) of the hose unit (200) is stuck between the nozzle (121) and the C-clip (140); a first ring (160) including a thread (164) engaged with the thread (124) of the cylinder (120) and a first frusto-conical face (165) in contact with the frusto-conical external face (144) of the C-clip (140) to force the C-clip (140) to press the first section (202) of the hose unit (200) on the neck (126); and a second ring (180) connected to the first ring (160) and formed with a frusto-conical internal face (184) that cooperates with an end of the first ring (160) and the fourth section (208) of the hose unit (200) to provide an annular space to allow water to expand the fourth section (208) of the hose unit (200) and hence press an external face of the fourth section (208) of the hose unit (200) against the frusto-conical internal face (184).
a hose unit (200) including first, second, third and fourth sections (202/204/206/208); and a joint (100) including:
a cylinder (120) formed with a thread (124) and a nozzle (121), wherein the nozzle (121) is formed with a neck (126) and a head (128), and wherein the head (128) is formed with a rear face (127) and a front face (129);
a C-clip (140) formed with a front end and a frusto-conical external face (144), and placed on the first section (202) of the hose unit (200) so that the second section (204) of the hose unit (200) is clamped by the front end of the C-clip (140) and the rear face (127) of the head (128) and that a fold between the first and second sections (202/204) of the hose unit (200) is stuck between the nozzle (121) and the C-clip (140); a first ring (160) including a thread (164) engaged with the thread (124) of the cylinder (120) and a first frusto-conical face (165) in contact with the frusto-conical external face (144) of the C-clip (140) to force the C-clip (140) to press the first section (202) of the hose unit (200) on the neck (126); and a second ring (180) connected to the first ring (160) and formed with a frusto-conical internal face (184) that cooperates with an end of the first ring (160) and the fourth section (208) of the hose unit (200) to provide an annular space to allow water to expand the fourth section (208) of the hose unit (200) and hence press an external face of the fourth section (208) of the hose unit (200) against the frusto-conical internal face (184).
2. The hose-joint combination according to claim 1, wherein the first ring (160) includes a second frusto-conical face (166) for pressing the third section (206) of the hose unit (200) on the front face (129) of the head (128).
3. The hose-joint combination according to claim 2, wherein the neck (126) includes a frusto-conical external face for contact with the first section (202) of the hose unit (200), and wherein the C-clip (140) includes a frusto-conical internal face (142) for contact with the first section (202) of the hose unit (200).
4. The hose-joint combination according to claim 3, wherein the rear face (127) of the head (128) is a planar face so that there is a sharp angle between the planar rear face (127) of the head (128) and the frusto-conical external face of the neck (126).
5. The hose-joint combination according to claim 4, wherein the front face (129) of the head (128) is a frusto-conical face for contact with the third section (206) of the hose unit (200).
6. The hose-joint combination according to claim 1, wherein the first and second rings (160/180) are made two individual elements.
7. The hose-joint combination according to claim 6, wherein the first ring (160) is formed with a thread (162), and wherein the second ring (180) includes a thread (182) engaged with the thread (162) of the first ring (160).
8. The hose-joint combination according to claim 1, wherein the first and second rings (160/180) are made one.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102222745 | 2013-12-04 | ||
| TW102222745U TWM479372U (en) | 2013-12-04 | 2013-12-04 | Pipe joint structure of telescopic water pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2871894A1 CA2871894A1 (en) | 2015-06-04 |
| CA2871894C true CA2871894C (en) | 2017-05-16 |
Family
ID=51394700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2871894A Active CA2871894C (en) | 2013-12-04 | 2014-11-24 | Hose-joint combination |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2871894C (en) |
| TW (1) | TWM479372U (en) |
-
2013
- 2013-12-04 TW TW102222745U patent/TWM479372U/en not_active IP Right Cessation
-
2014
- 2014-11-24 CA CA2871894A patent/CA2871894C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA2871894A1 (en) | 2015-06-04 |
| TWM479372U (en) | 2014-06-01 |
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