ES1078100U - Duct device device (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Duct filling device (1) comprising: - a tank (3) inside which is air under pressure, - a push button (2), subject to the tank (3), and - a bag (4). Characterized in that the bag (4) is divided into: - an interior zone (24) to the duct (28), - a container zone (25) of the tank (3), and - a communicating area (26) of the interior area (24) to the duct (28) and the container zone (25) of the tank; Where the inner area (24) of the bag (4) is placed inside the conduit (28) to be sealed and the container container zone (25) is left outside of said conduit (28), releasing the pressurized air of the reservoir (3) by means of the button (2) that passes through the communicating zone (26) of the container zone (25) of the reservoir to the interior zone (24) to the conduit (28), said conduit (28) closing. (Machine-translation by Google Translate, not legally binding)

Description

Duct sealing device.

Object of the invention

The present invention relates to a device that is used in the filling of ducts that is placed at the ends of said ducts.

It is applicable in duct installations that are not going to be used immediately, or in facilities that are exposed to the action of animals.

Technical problem to solve and background of the invention

In any installation that has ducts, it is a priority to avoid introducing animals and / or dirt into these ducts that can make the use of the duct very limited or even that the duct is clogged and unusable, or very costly to recover.

It is essential that the conduits in the facilities that will be for a while without a cable being introduced through them, or in those that already have a cable inside and that access to them is complicated, is secured and the entrance of No element that could damage the conduit or damage the cables that run inside the conduit.

For this, devices are used that are placed at the ends of the ducts and that adapt to the geometry of the duct, expanding until the entrance to the duct is sealed by pressure.

The devices used have a bag that expands thanks to the introduction of a gas inside, so that with its expansion it presses against the duct, achieving its sealing. The gas is compressed in a container which incorporates a button to press to achieve the release of the gas. The gas container is inside the bag.

Since the container is inside the bag and the bag is completely inserted into the duct to be sealed, pressing the gas release button becomes a complicated task, since there is no comfortable access gap to press said button

In the state of the art we find the document EP 1614953 A1 which shows a device for sealing ducts used in electrical, telephone and similar lines, by swelling an element. Document US 5 901 962 A discloses a device for sealing the gap between a cable and the conduit through which the cable runs through the swelling of an element, but the swelling of this element is produced by manual means.

To solve the problem of access to the button of the container, the object of the invention is developed, with which the container is outside the duct and the button can be pressed effortlessly.

Description of the invention

The invention discloses a device by means of which a duct is sealed at the end thereof.

The duct sealing device object of the invention comprises a reservoir within which there is pressurized air, a push button attached to the reservoir and a bag.

In the duct sealing device object of the invention, the bag is divided into a zone inside the duct, a container containing area, and a zone communicating from the area inside the duct and the container containing area;

In the duct sealing device object of the invention, the inner area of the bag is placed inside the duct to be sealed and the reservoir container area is left outside said duct, releasing the pressurized air from the reservoir by means of the push button which passes through the communicating zone of the container containing zone to the inner zone of the duct, sealing said duct.

In the duct sealing device the bag has a laminar structure comprising a central aluminum foil, surrounded by two sheets of polyamide that are fixed to the aluminum by means of a chemical adhesive, and attached to the polyamide layers some polyethylene sheets configuring the outside of the bag.

In the duct sealing device, the central aluminum foil of the bag is between 15 and 30 μm thick.

In the duct sealing device the polyamide sheets located on both sides of the central aluminum foil of the bag have a thickness between 8 and 15 μm.

In the duct sealing device, the polyethylene sheets that constitute the outer layer of the bag have a thickness between 50 and 100 μm.

In the duct sealing device, the push-button comprises two horizontal parallel walls, each of the parallel walls comprising at one end a perforation and at the other end an appendix joining the parallel walls to each other and extending perpendicularly to the parallel walls ; and a "L" shaped trigger with a branch of the "L" located between the parallel walls and the other branch located parallel to the appendix.

In the device object of the invention, by pressing the trigger branch parallel to the appendix, the trigger is rotated around the perforation and, by means of this rotation, said trigger presses a valve comprised in the tank, thus releasing the pressurized air from inside the tank.

The button of the device object of the invention comprises, in addition to the horizontal parallel walls, the appendix and the trigger:

-

in its lower part, a circular skirt;

-

following the skirt, a flat circular surface perpendicular to the skirt that extends inside the button; the circular flat surface comprising a through hole;

In the duct sealing device the circular skirt has at least two diametrically opposed grooves, which facilitate the mounting under pressure on the upper part of the tank by elastic jump.

In the duct sealing device the through hole comprises a circular shape with a rectangle tangential to the circular shape on one of its major sides.

In the duct sealing device, at the junction of the two branches of the "L", the trigger comprises a hole that is placed in correspondence with the perforations of the parallel walls and by a pin introduced by the perforations and the hole is they connect the trigger and the parallel walls.

In the duct sealing device the through hole comprises a circular shape with a rectangle tangential to the circular shape on one of the major sides of the rectangle.

In the duct sealing device the reservoir of the device comprises a cylindrical body with one end of said truncated cone-shaped body and the other end comprises a connection head with the button.

The pressurized air in the device reservoir is compressed at a pressure in a range from 100 to 200 atmospheres of pressure.

In the duct sealing device the reservoir head is connected to the reservoir body through a threaded area located at one end of the head, and at the other end the head comprises a perimeter flange connecting the reservoir with the push button.

In the duct sealing device, the valve is operated by an activator that passes through the through hole of the button.

Description of the figures

In order to complete the description and in order to help a better understanding of the characteristics of the invention, this descriptive report is attached, as an integral part thereof, a set of drawings in which with an illustrative and non-limiting nature, the next:

Figure 1 shows a perspective view of the device object of the invention.

Figure 2 shows a perspective view of the device object of the invention placed in a conduit.

Figure 3 shows a perspective view of the compressed air tank with the button installed which is part of the device object of the invention.

Figure 4 shows a view of a section of the air reservoir with two details of said section.

Figure 5 shows a perspective view of the button that is part of the device object of the invention.

Figure 6 shows another perspective view of the button that is part of the device object of the invention.

Figure 7 shows a view of a section of the button that is part of the device object of the invention.

Figure 8 shows a perspective view of the trigger that is part of the device button.

Figure 9 shows a section of a wall of the bag that is part of the device object of the invention.

The numerical references reflected in the figures correspond to the following elements:

one.

 device,

2.

 button,

3.

 Deposit,

Four.

 bag,

5.

 skirt

6.

 groove,

7.

 flat surface,

8.

 through hole,

9.

 parallel wall,

10.

drilling,

eleven.

appendix,

12.

trigger,

13.

orifice,

14.

Barrette,

fifteen.

body,

16.

head,

17.

threaded area,

18.

perimeter flange,

19.

valve,

twenty.

activator,

twenty-one.

aluminum,

22

polyamide,

2. 3.

polyethylene,

24.

inside the duct,

25.

container holding area,

26.

communicating zone,

27.

sealing putty,

28.

conduit,

29.

reinforcement.

Preferred Embodiment of the Invention

As already indicated, and as can be seen in the detailed figures, the object of the invention is an easily operable device (1) that makes the sealing of a conduit.

The device (1) object of the invention comprises a tank (3) with a button (2) at one end of said tank (3), the tank (3) containing pressurized air which, by means of the button (2), is released to expand a bag (4) which, by pressing against the conduit (28) that is desired to be sealed, seals said conduit (28).

The bag (4) observable in Figure 1, comprises three different parts all linked and connected to each other:

-

inner zone (24) to the duct (28),

-

container holding area (25),

-

communicating zone (26).

The inner area (24) to the conduit (28) is the part of the bag (4) that is placed, if there is a cable, around the cable and inside the conduit (28) to be sealed, the container holding area (25 ) is the part of the bag (4) that is left outside the duct (28) and where the pressure air tank (3) is located, and the communicating area (26) is the part of the bag (4) by the air that passes when it is released from the tank (3) until the inner area (24) swells to the duct (28) and seals said duct (28).

In the communicating area (26) of the bag there is a reinforcement (29) to prevent separation of the container area (25) from the tank from the inner area (24) to the duct (28) during use of the device (1) object of the invention.

Also, to fill in the free spaces that may be left when the bag (4) expands by filling the duct (28), the bag (4) comprises a sealing putty (27), which is located outside the area inside (24) to the duct (28) which, by expanding the bag (7) inside the duct (28), contributes to obtaining a complete seal of the duct (28.)

Next, and referring to Figures 5, 6 and 7, the button (2) of the device (1) object of the invention is described.

The button (2) comprises, in its lower part, a skirt (5) of circular shape, which allows its mounting on the pressure air tank (3), by placing the skirt (5) on the top of the tank (3). The skirt

(5)

 The circular has at least two diametrically opposed grooves (6), which facilitate the mounting under pressure on the upper part of the tank (3) by elastic jump.

The push button (2) comprises, following the skirt (5), a circular flat surface (7) that is perpendicular to the skirt (5) and that extends through the inside of the push button (2); the flat circular surface (7) comprises through hole

(8)

 in its central area, the shape of the through hole (8) being circular with a rectangle tangential to the circular shape on one of its major sides.

In the button (2) perpendicular to the flat surface (7) and in the opposite direction to the connection with the tank (3), two parallel walls (9) are erected with each other, said parallel walls (9) comprise at one end a perforation (10) each of the parallel walls (9) and at the other end comprise an appendix (11) that joins the parallel walls (9) with each other and extends perpendicular to the flat surface (7).

The button (2) comprises a trigger (12), in the form of "L", with a branch of the "L" located between the parallel walls (9) and the other branch located parallel to the appendix (11); at the junction of the two branches of the "L" the trigger (12) comprises a hole (13) that is placed in correspondence with the perforations (10) of the parallel walls (9) and introducing a pin (14) joins the trigger (12) to the parallel walls (9).

The tank (3) incorporates compressed air at high pressure in its interior, air under pressure and no other gases having been chosen due to the stability of the air due to temperature variations.

The reservoir (3), as can be seen in Figures 3 and 4, comprises a cylindrical body (15), one end is shaped like a truncated cone trunk, and the other end has a head (16) through the that the connection is made with the button (2).

The head (16) of the tank (3) is connected to the body (15) of the tank (3) through a threaded area (17). At the end of the head (16) of the tank (3) there is a perimeter flange (18) for the connection of the tank (3) with the button (2) through the skirt (5) of said button (2).

The head (16) of the tank (3) incorporates at its end a valve (19), which comprises an activator (20) that passes through the through hole (8) of the button (2).

The valve is actuated by pressing the trigger (12) of the push button (2), specifically by pressing the branch parallel to the appendix (11), a rotation of the trigger (12) is performed around the pin (14) of the push button (2) in the that the trigger branch (12) located between the parallel walls (9) moves and presses the activator (20) of the valve (19) releasing the compressed air that is in the tank (3).

The walls of the bag (4) of the device (1) object of the invention, have a laminar structure (observable in Figure 9) composed of a central aluminum sheet (21), surrounded by two sheets of polyamide (22) that they are fixed to the aluminum (21) by means of a chemical adhesive, and a last sheet that configures the outer layer of the bag composed of polyethylene (23) that is fixed to the polyamide (22) by the heat of the rolling process of the bag, without the need of any type of adhesive.

The aluminum (21) of the walls of the bag (4) has a thickness that is between 15 and 30 μm, the thickness employed in the preferred embodiment of the invention being 20 μm.

The polyamide (22) of the structure of the bag (4) has a thickness that is between 8 and 15 μm, the thickness employed in the preferred embodiment of the invention being 12 μm.

The polyethylene (23) of the walls of the bag (4) has a thickness that is between 50 and 100 μm, the thickness employed in the preferred embodiment of the invention being 80 μm.

This laminar structure is a structure that has a mechanical resistance capable of withstanding the stresses generated in the sealing of the duct (28) being in turn a flexible and deformable structure which allows its adaptation to the duct (28) to be sealed.

The operation of the embodiment example of the device object of the invention is as follows:

-

placing the inner area (24) to the conduit (28) of the bag (4) of the device (1) around a cable that runs through the inside of a conduit (28), when this cable exists, at one end of the conduit (28) to be sealed, leaving out of said duct (28) the container holding area (25),

5 - the button (2) is pressed so that the compressed air is allowed out of the tank (3),

-

the air passes through the communicating zone (26) of the container holding area (25) to the inner zone (24) to the duct (28),

-

the duct (28) is sealed by pressure from the inner area (24) to the duct (28) of the bag (4) against the

inside said conduit (28), the cable being embedded in the inner area (24) to the conduit (28) of the bag (4), in the event that the cable exists.

The invention should not be limited to the particular embodiment described herein. Experts in the field can develop other embodiments in view of the description made here. Accordingly, the scope of the invention is defined by the following claims.

Claims (12)

1.- Device (1) for filling ducts comprising:

-

a reservoir (3) within which air under pressure is located,

-

a button (2), subject to the tank (3), and

-

a bag (4).

characterized in that the bag (4) is divided into:

-

an inner zone (24) to the duct (28),

-

a container area (25) of the tank (2), and

-

a communicating zone (26) from the inner zone (24) to the duct (28) and the container zone (25) of the tank; where the inner area (24) of the bag (4) is placed inside the duct (28) to be sealed and the container area (25) of the reservoir (25) is left outside said duct, releasing the pressurized air of the tank (3) by means of the button (2) that passes through the communicating zone (26) of the container zone (25) of the tank to the inner zone (24) to the duct (28), sealing said duct (28).

2. Device (1) for filling ducts, according to claim 1, characterized in that the bag (4) has a laminar structure comprising a central aluminum sheet (21), surrounded by two sheets of polyamide (22) that are fixed to the aluminum (21) by means of a chemical adhesive, and together with the layers of polyamide (22), sheets of polyethylene (23) are formed by configuring the exterior of the bag (4). 3. - Device (1) for sealing ducts according to claim 6, characterized in that the central aluminum sheet (21) of the bag (4) has a thickness between 15 and 30 μm. 4. Device (1) for sealing ducts according to any of claims 6 to 7, characterized in that the polyamide sheets (22) located on both sides of the central aluminum foil (21) of the bag (4) They have a thickness between 8 and 15 μm. 5. Device (1) for filling ducts according to any of claims 6 to 8, characterized in that the polyethylene sheets (23) that constitute the outer layer of the bag (4) have a thickness between 50 and 100 μm . 6. Device (1) for filling ducts, according to claim 1, characterized in that the button (2) comprises:

-

two horizontal parallel walls (9), each of the parallel walls (9) comprising at one end a perforation (10) and at the other end an appendix (11) joining the parallel walls (9) to each other and extending perpendicular to the parallel walls (9);

-

a trigger (12), shaped like an "L", with a branch of the "L" located between the parallel walls (9) and the other

branch located parallel to the appendix (11). so that when the trigger branch (12) is pressed parallel to the appendix (11), the trigger (12) is rotated around the perforation (10) and said trigger (12) actuates a valve (19) comprised in the tank (3), releasing the pressurized air inside the tank by means of this rotation (3). 7. Duct sealing device (1) according to claim 6, characterized in that the button (2) of the device (1) additionally comprises the two parallel walls (9), the appendix (11) and the trigger (12 ):

-

in its lower part, a skirt (5) of circular shape;

-

above the skirt (5), a circular flat surface (7) perpendicular to the skirt (5) that extends inside the button (2); the flat surface (7) comprising a through hole (8);

8. Duct sealing device (1) according to claims 1 to 2, characterized in that the circular skirt (5) comprises at least two diametrically opposed grooves (6), which facilitate pressure mounting on the upper part of the tank (3) by elastic jump. 9. Device (1) for filling ducts according to any one of claims 1 to 4, characterized in that the trigger (12), at the junction of the two branches of the "L", comprises a hole (13) that it is placed in correspondence with the perforations (10) of the parallel walls (9) and, by means of a pin (14) introduced by the perforations (10) and the hole (13) the trigger (12) and the parallel walls ( 9). 10. Device (1) for filling ducts according to any of claims 2 or 3, characterized in that the through hole (8) comprises a circular shape with a rectangle tangential to the circular shape on one of the major sides of the rectangle. 11.- Duct sealing device (1) according to any of the preceding claims characterized in that the reservoir (3) of the device (1) comprises a cylindrical body (15) with an end of said cone-shaped body (15) truncated and the other end comprises a head (16) for connection with the button (2). 12. 12. Duct sealing device (1) according to any of the preceding claims characterized in that the pressurized air comprised by the reservoir (3) of the device (1) is compressed at a pressure in a range from 100 to 200 atmospheres of pressure. 13.- Duct sealing device (1) according to claim 7 characterized in that the head (16) of the The tank (3) is connected to the body of the tank (3) through a threaded area (17) located at one end of the head (16), and at the other end the head (16) comprises a perimeter flange (18 ) to connect the tank (3) with the button (2). 14. Device (1) for filling ducts according to any of claims 7 or 8, characterized in that the valve (19) is operated by means of an activator (20) that passes through the through hole (8) of the button ( 2).