PIPE ASSEMBLY WITH UNIDIRECTIONAL TELESCOPIC ARRANGEMENT FOR SAFETY
FIELD OF INVENTION:
[001] The present subject matter described herein, relates to pipe assembly in electrical, mechanical, and electronics components, and, in particular, to pipe assembly with self locking of inner pipe with outer pipe in downward movement to avoid sudden fall of inner pipe in the outer pipe. More particularly, the present pipe assembly which provides a telescopic movement of inner pipe in the outer pipe when the inner pipe is not fixed.
BACKGROUND AND PRIOR ART:
[002] Generally, electrical, electronics, and mechanical devices are mounted on top of a pipe assembly. With the help of pipe assembly height of the devices can be adjusted as per the requirement. In the pipe assembly, the inner pipe is secured in the outer pipe concentrically. The inner pipe moves up and down inside the outer pipe to adjust the height of the device.
[003] For example, in existing pedestal fan pipe assembly, height of the pedestal fan can be adjusted with the help of pipe assembly. Further, the inner pipe is fixed with the outer pipe with a screw or collect nut which avoid fall of inner pipe in the outer pipe. When the collect nut is loose, frictional force on inner pipe reduces which allows sudden downward movement of the inner pipe in the outer pipe. The sudden fall of the pedestal fan mounted on inner pipe due to un-tighten of screw may cause accidents. Today’s era is of consumer goods with more safety. To achieve this, we needs to increase the safety of fan/ pipe assembly joint such that, after loosening thumb screw, it should not fall suddenly.
[004] To make safe locking of inner pipe with the outer pipe, several techniques had been purposed in the past. In one technique, inner pipe has a sliding fastener which engages with the grooves available on the outer pipe. While moving in downward direction, the sliding fastener fixes with the outer pipe and does not allow further downward movement of the inner pipe. To move the pedestal fan at the lower position, the user has to press sliding fastener every time when it engages with the outer pipe or main button of the sliding fastener should be kept press during downward movement of inner pipe. This pipe assembly is complex and costly. Further, this assembly does not provide smooth downward movement of the inner pipe in the outer pipe.
[005] In another technique a sealing cylindrical sleeve is provide on the outer surface of the outer pipe. In order to fix the height, the sealing cylindrical sleeve is concentrically rotated to fix the location of inner pipe with the outer pipe. Upon rotation of the sealing cylindrical sleeve about the inner pipe, the rotation of the sleeve creates pressure or friction on the inner pipe and restricts the movement of inner pipe. Upon loosing the sealing cylindrical sleeve to adjust the height of the pedestal fan, the pedestal fan will fall sudden if no external force is applied to hold the pedestal fan. Therefore, this pipe assembly is not efficient to avoid sudden fall of the inner pipe when fixing screw is loose.
[006] The existing pipe assemblies do not provide any mechanism to avoid sudden fall of the inner pipe in the outer pipe without involving manual efforts. Further, the existing pipe assemblies are expensive and complex in designing and manufacturing. Therefore, there is a need in the art to provide a pipe assembly with telescopic arrangement that can be more simple and inexpensive, and which avoid sudden fall of the inner pipe in the outer pipe upon loosen of fixing screw.
OBJECTS OF THE INVENTION:
[007] The principal objective of the present invention is to provide a pipe assembly with telescopic downward movement.
[008] Another object of the present subject matter is to provide a pipe assembly with telescopic movement which increases the safety of pipe assembly in electrical, electronic, and mechanical devices.
[009] Another object of the present subject matter is to provide avoid accident at consumer end or place due to improper tightening of the inner pipe with the outer pipe.
[0010] Another object of the present subject matter is to provide a pipe assembly in which inner pipe moves telescopically inside the outer pipe with a slow continuous downward motion even after loosen pipe assembly joint.
[0011] Yet another object of the present invention is to provide a pipe assembly with telescopic movement which is simple and inexpensive, and efficiently allow slow downward motion of inner pipe in the outer pipe.
SUMMARY OF THE INVENTION:
[0012] The subject matter herein disclosed relates to a pipe assembly with telescopic movement to avoid sudden fall of inner pipe in outer pipe. The present pipe assembly has inner pipe, outer pipe and a collecting structure. The collecting structure is provided at top end of the outer pipe from where the inner pipe can slide in and out from the outer pipe. Further, the collecting structure has a collect sleeve and a collect sleeve cap. The collect sleeve cap is mounted on the top of the collect sleeve with help of collect sleeve cap fixing screws. Further, an O ring is provided on outer surface of the inner pipe in the collecting structure. The O ring is provided in between the collect sleeve cap and the collect sleeve. The collect sleeve has an inner tapered profile which has wider profile at upper side and narrow profile at lower side. When the inner pipe moves in downward direction, the O ring of the inner pipe provided on outer surface of the inner pipe engages with the inner tapered profile of the collect sleeve. The inner tapered profile of the collect sleeve applies pressure on the O ring which creates friction on the inner pipe and restrict sudden fall of the inner pipe in the outer pipe. Due to engagement of the O ring and the inner tapered profile of the collect sleeve, the inner pipe slide slowly in the outer pipe when thump screw is loose
[0013] In order to further understand the characteristics and technical contents of the present subject matter, a description relating thereto will be made with reference to the accompanying drawings. However, the drawings are illustrative only but not used to limit scope of the present subject matter.

BRIEF DESCRIPTION OF THE DRAWINGS
[0014] It is to be noted, however, that the appended drawings illustrate only typical embodiments of the present subject matter and are therefore not to be considered for limiting of its scope, for the invention may admit to other equally effective embodiments. The detailed description is described with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the figures to reference like features and components. Some embodiments of system or methods in accordance with embodiments of the present subject matter are now described, by way of example, and with reference to the accompanying figures, in which:
[0015] Fig. 1 illustrates structure and arrangement of inner pipe with outer pipe for telescopic movement, in accordance with an embodiment of the present subject matter;
[0016] Fig. 2a and 2b illustrates structure of collect sleeve in the pipe assembly for applying pressure on inner pipe with O ring, in accordance with an embodiment of the present subject matter;
[0017] Fig. 2c illustrates structure of O ring of the pipe assembly, in accordance with an embodiment of the present subject matter; and
[0018] Fig. 3a and 3b illustrates structure of collect sleeve cap of the pipe assembly, in accordance with an embodiment of the present subject matter.
[0019] The figures depict embodiments of the present subject matter for the purposes of illustration only. A person skilled in the art will easily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
DESCRIPTION OF THE PREFERRED EMBODIMENTS:
[0020] The subject matter disclosed herein relates to a pipe assembly with telescopic movement to avoid sudden fall of inner pipe in outer pipe. The present pipe assembly has inner pipe, outer pipe and a collecting structure. The collecting structure is provided at top end of the outer pipe from where the inner pipe can slide in and out from the outer pipe. Further, the collecting structure has a collect sleeve and a collect sleeve cap. The collect sleeve cap is mounted on the top of the collect sleeve with help of collect sleeve cap fixing screws. Further, an O ring is provided on outer surface of the inner pipe in the collecting structure. The O ring is provided in between the collect sleeve cap and the collect sleeve. The collect sleeve has an inner tapered profile which has wider profile at upper side and narrow profile at lower side. When the inner pipe moves in downward direction, the O ring of the inner pipe provided on outer surface of the inner pipe engages with the inner tapered profile of the collect sleeve. The inner tapered profile of the collect sleeve applies pressure on the O ring which creates friction on the inner pipe and restrict sudden fall of the inner pipe in the outer pipe. Due to engagement of the O ring and the inner tapered profile of the collect sleeve, the inner pipe slide slowly in the outer pipe when thump screw is loose.
[0021] It should be noted that the description and figures merely illustrate the principles of the present subject matter. It should be appreciated by those skilled in the art that conception and specific embodiment disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present subject matter. It should also be appreciated by those skilled in the art that by devising various arrangements that, although not explicitly described or shown herein, embody the principles of the present subject matter and are included within its spirit and scope. Furthermore, all examples recited herein are principally intended expressly to be for pedagogical purposes to aid the reader in understanding the principles of the present subject matter and the concepts contributed by the inventor(s) to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions. The novel features which are believed to be characteristic of the present subject matter, both as to its organization and method of operation, together with further objects and advantages will be better understood from the following description when considered in connection with the accompanying figures.
[0022] These and other advantages of the present subject matter would be described in greater detail with reference to the following figures. It should be noted that the description merely illustrates the principles of the present subject matter. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described herein, embody the principles of the present subject matter and are included within its scope.
[0023] Fig. 3 illustrates assembly of inner pipe with the outer pipe with help of collect sleeve and collect sleeve cap, in accordance with an embodiment of the present subject matter. The pipe assembly 100 comprising an inner pipe 1 and an outer pipe 10. The inner pipe 1 slides into the outer pipe 10 concentrically. The outer pipe 10 is a hollow pipe where the inner pipe 1 may be hollow or solid pipe. The pipe assembly 100 has a collecting structure on top end of the outer pipe 10. The collecting structure has collect sleeve 8 and collect sleeve cap 7. The collect sleeve cap 7 is mounted over the collect sleeve 8 with fixing screws 3 which holds the O ring and allows to keep it inside. In another embodiment, the collecting structure can be single piece structure with collect sleeve and collect sleeve cap. Further a thump screw 5 is provided on the collect sleeve cap 7 to fix the location of inner pipe 1 with the outer pipe 10. The thump screw 5 is un-tighten to allow downward and upward motion of the inner pipe 1 in the outer pipe 10.
[0024] In the collecting structure, an O ring 4 is provided on outer surface of the inner pipe 1 in between the collect sleeve 8 and the collect sleeve cap 7. The O ring 4 moves along the inner pipe 1 in the collecting structure. The collect sleeve cap 7 restricts the upward movement of the O ring 4 along with the inner pipe 1. The collect sleeve 8 has an inner tapered profile at inner side of the hollow outer pipe 10. The inner tapered profile has bigger radius at upper side than lower side. The inner tapered profile of the collect sleeve 8 applies pressure on the O ring 4 to restrict sudden fall of the inner pipe 1 in the hollow outer pipe 10. When the inner pipe 1 slides inside the outer pipe, the O ring 4 engages with the inner tapered profile of the collect sleeve 8. The inner tapered profile applies pressure on the O ring 4 which create frictional force on the inner pipe 1 which slows down the downward movement of the inner pipe 1. Due to the tapered profile, the collect sleeve 8 presses the O ring 4 and creates friction between the inner pipe 1 and the O ring 4 which avoid sudden fall of the inner pipe in the outer pipe.
[0025] On the other hand when the thump screw 5 is loose and the inner pipe 1 needs to move in upward direction. While pulling the inner pipe 1 in upward direction, the O ring 4 which is attached with the outer surface of the inner pipe 1 also moves in upward direction towards the collect sleeve cap 7. Due to the upward motion and the inner tapered profile of the collect sleeve 8, the O ring 4 dis-engages from the narrow circumference of the inner tapered profile and moves toward wider circumference of the inner tapered profile. When O ring 4 moves in upward direction and dis-engages from the inner tapered profile, a gap is created between the inner pipe 1 and the collect sleeve 8. Due to the gap and dis-engagement, there is no pressure on the inner pipe 1 from the collect sleeve 8. When there is no pressure on the inner pipe 1, the inner pipe 1 can easily move to a desired height.
[0026] Fig. 2a and 2b illustrates structure of the collect sleeve 8 and its engagement with the O ring respectively, in accordance with an embodiment of the present subject matter. The collect sleeve 8 is provided on the outer surface and inner surface of the outer pipe 10. The inner tapered profile 8a of the collect sleeve 8 is inside the hollow outer pipe 10. The collect sleeve 8 is mounted on the hollow outer pipe 10 with help of collect sleeve locking screw 9 which fixes the collect sleeve with the outer pipe 10. The O ring 4 slides into the inner tapered profile 8a of the collect sleeve when the inner pipe 1 is moving in downward direction. The O ring 4 slides into the inner tapered profile 8a from wider circumference to narrow circumference. The movement from wider to narrow creates pressure on the O ring 4 which creates frictional force on the inner pipe 1. The frictional force in between the O ring 4 and the inner pipe 1 restrict sudden fall of the inner pipe 1 in the outer pipe 10 and provides a telescopic movement in downward direction. Fig 2c illustrates structure of O ring in the present pipe assembly. The O ring 4 is ring type structure made of a high elastic and durable material. The O ring 4 has high resistance to wear and tear during the operations.
[0027] Fig. 3a and 3b illustrates structure of collect sleeve cap 7, in accordance with an embodiment of the present subject matter. The collect sleeve cap 7 is mounted over the collect sleeve 8 through cap fixing screw 3. In another embodiment, the collect sleeve cap 7 can be integrated with the collect sleeve 8 and formed as a single piece. The collect sleeve cap 7 is circular and covers the outer surface of the outer pipe 10. The collect sleeve cap 7 has a gap 7b between two circular ends. A thump screw 5 is provided in the two circular ends. Upon rotation of the thump screw 5, the inner pipe 1 is fixed with the outer pipe 10 at desired location. When thump screw 5 is rotated, the gap between the ends of the collect sleeve cap 7 is reduced and frictional force is applied on the inner pipe 1 by the collect sleeve cap 7. The frictional force applied by the collect sleeve cap 7 restricts the movement of the inner pipe 1 with reference to the outer pipe 10. Upon loosening the thump screw 5, height of the inner pipe can be adjusted with reference to the outer pipe 10. The collect sleeve cap 7 restricts the movement of O ring 4 in upward direction beyond the collect sleeve cap 7.
[0028] The present pipe assembly can be applied in any electrical, electronics, and mechanical devices. For example, TV can be mounted on inner pipe and height of TV can be adjusted with the present pipe assembly. It should be noted that present pipe assembly can be implemented in any field.
[0029] To understand the use of present pipe assembly, the pipe assembly can be implemented in the pedestal fan. The present pipe assembly can be used to adjust height of the pedestal fan. To adjust the height of the fan, the thumb screw 5 is to be loose. After adjusting the height to the required height, the thumb screw 5 is tighten for locking inner pipe 1 movement with the outer pipe 10.
[0030] For increasing height of the fan: To increase the fan height, the thumb screw 5 is loose first, the inner pipe 1 is lifted to desired height and then the thumb screw 5 is tighten. While pulling inner pipe 1 towards upward direction, the O ring 4 attached with inner pipe 1 also move towards the collect sleeve cap 7, a gap is created between inner pipe 1 and the inner tapered profile of the collect sleeve 8, due to which there is no pressure on inner pipe 1and the inner pipe 1 can move easily to desired height.
[0031] For decreasing height of fan: For decreasing the fan height, the thumb screw 5 is loose first, after loosening the thumb screw 5 usually the complete inner pipe 1 falls suddenly due to weight of motor with guard assembly on top of the inner pipe 1. However in the present pipe assembly, while inner pipe 1 is moving downwards, an O ring 4 attached with the inner pipe 1 also move towards the inner tapered profile of the collect sleeve 8 which locks the collect sleeve 8 and the inner pipe 1. The locking of collect sleeve 8 and the inner pipe 1 from the O ring 4 creates a frictional force/pressure on the inner pipe 1 which leads to avoid sudden fall of the fan.
[0032] It will be further appreciated that functions or structures of a plurality of components or steps may be combined into a single component or step, or the functions or structures of one-step or component may be split among plural steps or components. The present invention contemplates all of these combinations. Unless stated otherwise, dimensions and geometries of the various structures depicted herein are not intended to be restrictive of the invention, and other dimensions or geometries are possible. Plural structural components or steps can be provided by a single integrated structure or step. Alternatively, a single integrated structure or step might be divided into separate plural components or steps. In addition, while a feature of the present invention may have been described in the context of only one of the illustrated embodiments, such feature may be combined with one or more other features of other embodiments, for any given application. It will also be appreciated from the above that the fabrication of the unique structures herein and the operation thereof also constitute methods in accordance with the present invention. The present invention also encompasses intermediate and end products resulting from the practice of the methods herein. The use of “comprising” or “including” also contemplates embodiments that “consist essentially of” or “consist of” the recited feature.
[0033] Although embodiments for the present subject matter have been described in language specific to structural features, it is to be understood that the present subject matter is not necessarily limited to the specific features described. Rather, the specific features and methods are disclosed as embodiments for the present subject matter. Numerous modifications and adaptations of the system/component of the present invention will be apparent to those skilled in the art, and thus it is intended by the appended claims to cover all such modifications and adaptations which fall within the scope of the present subject matter.

We claim:

1. A pipe assembly (100) with telescopic movement to avoid sudden fall of inner pipe (1) in outer pipe (10), the pipe assembly (100) comprising:
the inner pipe (1) and the outer pipe (10), wherein the inner pipe (1) is secured inside the outer pipe (10);
a collecting structure is provided on top end of the outer pipe (10) which receives the inner pipe (1) and provides telescopic movement to the inner pipe (1), wherein the collecting structure () comprising:
an O ring (4) provided on outer surface of the inner pipe (1) inside the collecting structure, wherein the O ring (4) applies pressure on the inner pipe (1) and provides telescopic movement of the inner pipe (1) inside the outer pipe (10).
2. The pipe assembly (100) as claimed in claim 1, wherein the collecting structure comprising:
a collect sleeve (8) provided on outer surface of the outer pipe (10); and
a collect sleeve cap (7) provided on top of the collect sleeve (8) to restrict movement of the O ring (4) in upper direction along with the inner pipe (1), wherein the collect sleeve cap (7) and the collect sleeve (8) are connected with each other through collect sleeve cap fixing screw (3).

3. The pipe assembly (100) as claimed in claim 2, wherein the collect sleeve (8) has inner tapered profile (8a) in which the O ring (4) of the inner pipe (1) moves along with downward movement of the inner pipe (1) and provide telescopic movement to the inner pipe (1) inside the outer pipe (10) by applying pressure on the inner pipe (1) by the O ring (4).

4. The pipe assembly (100) as claimed in claim 3, wherein the inner tapered profile (8a) applies pressure on the O ring (4) when the O ring (4) moves downward towards narrow portion of the inner tapered profile (8a).
5. The pipe assembly (100) as claimed in claim 1, wherein engagement of the O ring (4) provided on outer surface of the inner pipe (1) with the inner tapered profile (8a) of the collect sleeve (8) creates frictional force on the inner tube which avoid sudden fall of the inner pipe (1) in the outer pipe (10).

6. The pipe assembly (100) as claimed in claim 2, wherein when the inner pipe moves in upward direction the O ring (4) dis-engages from the inner tapered profile (8a) and no pressure is applied on the inner pipe (4) for smooth upward motion.

7. The pipe assembly (100) as claimed in claim 1, wherein the collect sleeve cap (7) restrict movement of O ring (4) in the collecting structure in upward direction.

8. The pipe assembly (100) as claimed in claim 1, wherein the collect sleeve cap (7) has a thump screw (5) to fix the inner pipe (1) with the outer pipe (10) at desired location.

9. The pipe assembly (100) as claimed in claim 1, wherein the inner pipe (1) has telescopic movement in downward direction by the O ring (4) and the inner tapered Profile (8a) of the collect sleeve (8) and upward movement is free.

10. The pipe assembly (100) as claimed in claim 1, wherein the O ring (4) is made up from a high elastic and durable material.