FR2953878A1 - Aspirator/separator for extracting water from e.g. water basin, has cone whose section is reduced from outlet of aspiration chamber towards inlet of waste recovery installation to accelerate upward movement of water towards installation - Google Patents

Abstract

The invention relates to a vacuum cleaner / drainer for a pool of water or swimming pool, comprising: - a suction chamber (1) comprising an inlet (1a) and an outlet (1b), said chamber being surmounted by an installation (20 ) waste recovery, - a port (10) for injection of water under pressure connected to a conduit (11) opening to at least one nozzle (12) with water jet, said nozzle introducing the pressurized water to the recovery plant (20) so as to create a vacuum in the suction chamber (1) and to induce an upward movement of the pool or pool water from the inlet (1a) to the outlet ( 1b) of said chamber, characterized by the fact that: the pressure of the water injected into the pipe (11) is greater than or equal to 70 × 105 Pa, a cone (2) connects the outlet (1b) of the suction chamber (1) at the inlet of the recovery plant (20), the section of said cone being reduced since the output of said chamber to the inlet of said installation so as to accelerate the upward movement of water to said installation.

Description

Vacuum cleaner / water trap for pool or pool Description Technical field of the invention.

The invention relates to a vacuum cleaner / water trap for a pool or pool.

It concerns the technical field of devices for extracting water from a pool, a swimming pool, a reservoir, a flooded cellar, etc.

State of the art

Water aspirators are well known in the prior art. Document US 3,039,122 (BIRDSALL), US 4,240,174 (THIEM), US 4,615,802 (HARBAUGH), or US 3,755,843 (GOERTZEN), vacuum cleaners whose head is connected to a pump, are known in particular. The latter is often particularly expensive and needs to be perfectly sealed to avoid any risk of short circuit and / or electrocution.

To overcome the problems associated with the use of a pump, water aspirators are known comprising: - a suction chamber provided with an inlet and an outlet, said chamber being surmounted by an installation waste recovery, - 2

a pressurized water injection orifice connected to a duct leading to at least one waterjet nozzle, said nozzle introducing the pressurized water to the recovery installation so as to create a depression in the chamber; suction and induce an upward movement of water pool or pool from the entrance to the exit of said chamber.

Such vacuum cleaners are for example described in documents FR 2,667,099 (MONETTA) and FR 2,683,845 (MONETTA). The injection port is usually connected to a conventional watering device or to the sweep of a swimming pool. The water pressure generated by such systems is generally low. In fact, the depression created in the suction chamber is not sufficient to clear and suck the water out of the pool or pool.

In view of this state of affairs, the main objective that the invention aims to achieve is to modify the suction device of the type described in documents FR 2.667.099 (MONETTA) and FR 2.683.845 (MONETTA), so that to be able to clear and suck the water out of a pool or pool.

Disclosure of the invention. The solution proposed by the invention is a vacuum cleaner / water trap for pool or pool, of the type known from the prior art, that is to say comprising: - a suction chamber having an inlet and an outlet , said chamber being surmounted by a waste recovery installation, - a water injection orifice under pressure connected to a duct leading to at least one jet nozzle, said nozzle introducing the water under pressure to the recovery plant to create a vacuum in the suction chamber and to induce upward movement - 3

water from the pool or pool from the entrance to the outlet of said chamber. This vacuum cleaner / desiccant is however remarkable in that: the pressure of the water injected into the duct is greater than or equal to 70 × 10 5 Pa; a cone connects the outlet of the suction chamber to the inlet of the inlet; waste recovery plant, the section of said cone being reduced from the outlet of said chamber to the inlet of said installation so as to accelerate the upward movement of the water towards said installation. 10 Working in high pressure combined with the use of an accelerator cone makes it possible to easily unburden and suck the water contained in a pool or swimming pool without any other pumping device. Description of the figures.

Other advantages and characteristics of the invention will appear better on reading the description of a preferred embodiment which follows, with reference to the appended drawings, carried out as indicative and non-limiting examples and in which: FIG. 1a is a diagrammatic cross-sectional view of the vacuum cleaner / desiccator which is the subject of the invention; FIG. 1b is a diagrammatic sectional view of the vacuum cleaner / desiccator which is the subject of the invention, the accelerator cone being removed; 2 is a sectional view along AA of the vacuum cleaner / sludge shown schematically in FIG. 1a; FIG. 3 is a diagrammatic side view of the vacuum cleaner / destemmer 30 which is the object of FIG. the invention, the accelerator cone not being shown, - Figure 4 is an enlarged view of detail D of Figure la. Embodiments of the invention

Referring to Figure la, the vacuum cleaner / desiccator object of the invention is provided with a suction chamber 1 surmounted by a waste recovery facility 20.

The chamber 1 is formed by a rigid hollow shell, preferably obtained by plastic molding. Referring to Figure 3, a maneuvering handle 7 large is rotatably mounted on the hull. With a travel of about 180 °, this handle 7 makes it easy to maneuver the vacuum cleaner / desiccant, the latter is to the right or left of the user.

The chamber 1 is provided with an inlet through which the water enters the pool or pool and an outlet through which said water is ejected. In practice, the inlet has a substantially rectangular section. It is large, for example 35 cm x 20 cm, so that bulky waste such as leaves, pebbly branches, can easily enter the chamber 1. The output lb is preferably circular. Its diameter varies from 8 cm to 15 cm so that bulky waste can easily get out of the chamber 1.

The chamber 1 is provided with a port 10 for injection of water under pressure. The latter is for example screwed laterally on the hollow shell forming the chamber 1. This orifice 10 is intended to be connected to a high-pressure water injection device, typically of the Karcher® type cleaner. The objective is to inject into the pipe 11 a water having a pressure greater than or equal to 70x105 Pa (70 bar), preferably greater than 100x105 Pa (100 bar) and can for example reach 250x105 Pa (250 bar) or even advantage. -4 2953878 -5

The connection of the pipe 100 connecting the water injection device under high pressure and the orifice 10 is by quick coupling or clamp or clamping ring. This orifice 10 may, if appropriate, also be connected to another water injection device, for example a garden hose or a swimming pool plug.

The orifice 10 is connected to a conduit 11 disposed in the chamber 1. The conduit 11 is for example molded or clipped on the inner wall of the hollow shell forming the chamber 1. It opens to at least one water jet nozzle 10 12 arranged to introduce the pressurized water towards the recovery plant 20. In this way, a strong depression is created in the chamber 1, causing a suction that induces an upward movement of the water basin or the pool from the entrance to the exit 1b of said room. In practice, the nozzle 12 is disposed inside the chamber 1, in the middle of the outlet lb, and oriented upwards. The departure of the suction is thus lowered, which makes more efficient the vacuum cleaner / desiccator. The nozzle 12 is typically screwed on the conduit 11. It is interchangeable according to the pressure of the water flowing in the conduit 11. The position of the nozzle 12 in the chamber 1 makes it easily accessible, which allows the user to 20 change it quickly without having to disassemble the entire vacuum cleaner / desiccator as in the majority of known devices of the prior art.

In accordance with the invention, a cone 2 connects the outlet lb of the chamber 1 to the inlet of the waste recovery plant. The latter may be a simple hose 20 clearing connected to the upper end of the cone 2 and to extract the water and waste to dump outside the pool or pool. The installation may however be more complex, include filtration systems and / or a cistern or a water recovery tank. In practice, the cone 2 is a rigid piece obtained by plastic molding. Its section is reduced since the exit lb of the room 1 2953878 -6

to the inlet of the installation 20 so as to accelerate, by venturi effect, the upward movement of the water towards said installation. In practice, the lower end of the cone 2 is fixed around the outlet lb of the chamber 1, by screwing or by means of a ring or a clamp. The diameter of this low end varies from 8 cm to 15 cm. The upper end of the cone 2 to a diameter of between 3 cm and 6 cm. The height of the cone 2 varies from 15 cm to 40 cm.

The operation of the vacuum cleaner / stripper object of the invention is as follows: the user connects the orifice 10 to the high-pressure water injection device. The jet of pressurized water generated by the nozzle 12, combined with the venturi effect induced by the cone 2, creates a large suction in the chamber 1 which allows to completely empty the water of a pool or a pool traditional, while removing sludge and other wastes. It is not necessary that the flow of water injected into the conduit 11 is important. Indeed, only the high pressure combined with the venturi effect make effective the vacuum cleaner / desiccant. For example, a flow rate of the order of 200 L / H is sufficient to extract the water and to débourber. A small amount of water is therefore consumed.

If the cone is not connected to the outlet 1b of the chamber 1, the force of the jet of water generated by the nozzle 12 is potentially dangerous, risking injuring the user, especially in the eye. It is therefore important to provide security. To do this, the duct 11 is advantageously provided with means for discharging the pressure in said duct when the cone 2 is not connected to the chamber 1. In practice, this means is a rod 200, for example 2 mm diameter, connected to the base of the cone 2. When the latter is correctly positioned at the output lb (Figure la), the rod 200 closes a first hole made in the shell forming the chamber 1 and a second hole made in the duct 11. This second bore may pass radially through the duct 11, in which case the rod 200 passes through said duct, said rod then having a diameter smaller than that of said duct. These different holes can 2953878 -7

incorporate a seal ensuring tightness. When the cone 2 is removed (FIG. 1b), the rod 100 releases the various bores, creating one or more leaks F having the effect of lowering the pressure of the water in the pipe 1 and thus reducing the force of the jet Other equivalent discharge and safety valve devices may be used by those skilled in the art.

According to another advantageous characteristic of the invention, a brush 3 is disposed inside the suction chamber 1. Referring to FIGS. 1a, 1b and 2, the brush 3 is connected to bolted threaded rods 30 on the shell forming the chamber 1. By adjusting the screwing of the threaded rods 30, the user has the possibility of adjusting the height of the brush 3. This is particularly advantageous when the bristles of the brush 3 are worn. Referring to Figure 2, the brush 3 is preferably arranged diagonally in the chamber 1 so as not to hinder the flow of water.

With reference to FIGS. 1a, 1b and 4, the duct 11 is advantageously provided with orifices 110 opening into the chamber 1 and whose jets are directed towards the brush 3. These high-power jets make it possible to effectively unstick certain the wall of the pool or pool, such as seaweed and direct them to the brush 3.

Advantageously, the orifices 110 are provided with an obstruction means. This is in practice needle screw 120 obstructing more or less the orifices 110. Depending on the position of the needle screws 120, it is not only possible to adjust the force of the jets issuing from the orifices 110, but also the pressure of the water. prevailing in the conduit 11. Thus, if the orifices 110 are completely released, the pressure in the conduit 11 drops. And in fact, the force of the jet generated by the nozzle 12 decreases. It is then possible to work at low pressure and to use the filter bell described in FR 2.683.845 (MONETTA), a silt bag, a leaf bag or any other similar device. 2953878 -8

For this purpose, it may be advantageous to provide a kit in which the vacuum cleaner / sludge is sold with all these different elements, the latter can be mounted directly at the outlet lb of the chamber 1 or at the upper end of the cone 2. All these elements can also be used when the port 10 is connected to a low pressure water injection device.

With reference to FIGS. 2 and 3, the vacuum cleaner / scrubber has wheels 5 located outside the chamber 1. This arrangement makes it possible 10 not to hinder the passage of water and waste. In practice, the wheels 5 are standard plastic wheels. They are held by pins on demountable pins 50 housed in bearings made on the outer wall of the shell forming the chamber 1. The axes 50 are preferably made of stainless steel and have a diameter of about 10 mm.

Advantageously, the wheels 5 are adjustable in height so as to adjust the suction height (height separating the wall of the pool or basin and the inlet of the chamber 1). In practice, the axes 50 are mounted in bearings whose height is adjustable.

Referring to FIG. 2, the rigid shell forming the chamber 1 is provided with removable weighting elements 6. These are preferably tubes of lead, bronze, concrete, or other, being fixed in the axes 50 of the wheels 5. These weighting elements 6 allow 25 to increase or decrease the weight of the vacuum cleaner / sludge and to change its center of gravity. Indeed, it may be advantageous to increase the weight of the latter to improve the brushing effect. In addition, the ballast tubes can roll on a wall by limiting friction

Claims (10)

Revendications1. Vacuum cleaner / water trap for a water basin or swimming pool, comprising: - a suction chamber (1) comprising an inlet (1a) and an outlet (1b), said chamber being surmounted by a waste recovery installation (20) - a port (10) for injecting water under pressure connected to a conduit (11) opening to at least one nozzle (12) with water jet, said nozzle introducing the pressurized water to the installation of recovery (20) so as to create a vacuum in the suction chamber (1) and to induce an upward movement of the pool or pool water from the inlet (1a) to the outlet (1b) of said chamber , characterized by the fact that: - the pressure of the water injected into the duct (11) is greater than or equal to 70x105 Pa, - a cone (2) connects the outlet (1b) of the suction chamber (1 ) at the inlet of the recovery plant (20), the section of said cone decreasing from the outlet of said chamber to the inlet of said installation so as to accelerate the upward movement of the water towards said installation. 2. Vacuum cleaner / sludge according to claim 1, wherein the nozzle (12) with water jet is disposed inside the suction chamber (1). 3. Vacuum cleaner / desiccator according to one of the preceding claims, wherein a brush (3) is disposed in the suction chamber (1), the conduit (11) being provided with orifices (110) opening into said chamber and whose jets are directed towards said brush. 2953878 - 10- 4. Vacuum cleaner / desiccator according to claim 3, wherein the orifices (110) are provided with means (120) for adjusting the flow rate of the jets and the pressure of the water in the conduit (11). 5 5. Vacuum cleaner / desiccator according to one of claims 3 or 4, wherein the brush (3) is adjustable in height. 6. Vacuum cleaner / desiccator according to one of claims 3 to 5, wherein the brush (3) is disposed at an angle in the suction chamber (1). 7. Vacuum cleaner / desiccator according to one of the preceding claims, wherein the conduit (11) is provided with means (200) for discharging the pressure in said conduit when the cone (2) is not connected to the chamber suction (1). 8. Vacuum cleaner / desiccator according to one of the preceding claims, comprising wheels (5) located outside the suction chamber (1), said wheels being held by pins on pins (50) removable. 9. Vacuum cleaner / desiccator according to claim 8, wherein the wheels (5) are adjustable in height so as to adjust the suction height. 25 10.A vacuum cleaner / desiccator according to one of the preceding claims, wherein the suction chamber (1) is formed by a rigid shell provided with removable ballasting elements (6). 10 15 20