ES2399089T3 - Portable device for hard surface aspiration - Google Patents

Abstract

Portable device for the suction of hard surfaces (10) with a suction nozzle (45) and a vacuum equipment (16) that is in rheological communication with the suction nozzle (45) to aspirate a mixture of liquid and air from a hard surface , and with a separating device (40, 57) to separate the liquid from the mixture of liquid and air, as well as with a dirty liquid reservoir (23) to accommodate the liquid that has been separated, characterized in that in the flow path between the suction nozzle (45) and the aspiration equipment (16) a separation chamber (33) is located in which the suction device (40, 57) is housed and which through a suction conduit (47) is in rheological communication with a suction nozzle (48) of the suction nozzle (45), and through the depression duct (60) with the suction equipment (16), and that through a drain hole (67) is in communication with a dirty liquid tank (23) , the mouth areas (51, 61) of the suction duct and the depression duct (47, 60) being surrounded within the separation chamber (33) in the peripheral direction at least partially of intermediate storage areas ( 71, 72, 73) for the liquid that has been separated.

Description

Portable device for hard surface aspiration

The invention relates to a portable apparatus for the aspiration of hard surfaces with an aspiration nozzle and an aspiration group which is in rheological communication with the aspiration nozzle, intended to aspirate a mixture of liquid and air from a hard surface, and with a separation installation to separate the liquid from the mixture of liquid and air, as well as with a dirty liquid reservoir to accommodate the liquid that has been separated.

Through this kind of hard surface aspiration apparatus, a liquid from a hard surface can be aspirated, for example from a window pane. For this purpose, a suction flow is generated by means of a vacuum group so that a mixture of liquid and air can be aspirated through the suction nozzle. By means of the separation device, the liquid can be separated from the mixture of liquid and air by transferring it to a dirty liquid reservoir. The hard surface aspiration equipment is made portable so that it can be easily driven by the user manually along the hard surface to be vacuumed.

This class of hard surface aspiration apparatus is known for example from EP 0 663 176 B1 and US 6,691,369 B1. In the hard surface aspiration equipment disclosed in EP 0 663 176 B1, the separation of the liquid from the mixture of liquid and air takes place directly in the dirty liquid reservoir. The consequence of this is that the degree of separation depends on the level of liquid in the dirty liquid reservoir. In addition, the suction flow caused by the vacuum group varies depending on the liquid level. As the degree of filling of the separation tank increases, there is a risk that the suction flow will be reduced and for this reason only a smaller amount of liquid can be aspirated from the hard surface.

The hard surface aspiration apparatus disclosed in US 6,691,369 B1 also has the disadvantage that it can only work in a predetermined position relative to the vertical, since otherwise it is interrupted by means of a Float communication between the suction nozzle and the vacuum group. If the hard surface aspiration apparatus is operated above the head, so that the aspiration nozzle is below the vacuum group, referred to the vertical one, then there is a risk that the liquid aspirated from the hard surface will return to exit through the suction mouth of the suction nozzle. Therefore, the user must carefully monitor that the hard surface aspiration apparatus is used only in the predetermined position. This makes it difficult to aspirate hard surfaces that are difficult for the user to reach, for example skylight crystals inclined to the vertical.

The objective of the present invention is to perfect a portable device for the aspiration of hard surfaces of the class mentioned above, so that regardless of the level of filling of the dirty liquid tank it provides a uniform suction flow and can be used in any orientation with respect to the vertical.

This objective is solved in a portable apparatus for the aspiration of hard surfaces of the generic class according to the invention because in the flow path, a separation chamber is located between the aspiration nozzle and the aspiration group in which the device is located of separation and that through a suction duct it is in communication with a suction mouth of the suction nozzle, and through a depression duct it is in rheological communication with the suction group, and that through a discharge orifice it is in communication with the dirty liquid reservoir, the mouth areas of the suction duct and the depression duct being inside the separation chamber, surrounded in peripheral direction at least in part by intermediate storage areas for the liquid that It has been separated.

In the apparatus for the aspiration of hard surfaces according to the invention, the separation of the liquid from the aspirated mixture of liquid and air is carried out in a separation chamber which, through a drain hole, is in communication with the dirty liquid reservoir. In the dirty liquid reservoir, the liquid that has been aspirated accumulates, without causing the suction flow caused by the vacuum group to be detrimental. The suction flow therefore does not pass through the dirty liquid tank and is therefore independent of the level of filling of the dirty liquid tank. The separation chamber is in rheological communication through an aspiration conduit with the aspiration mouth of the aspiration nozzle, and the separation chamber is communicated through a depression conduit with the aspiration group. The area of the mouth of the suction duct that flows into the separation chamber is surrounded inside the separation chamber, at least in a partial area of its periphery, by an intermediate storage area for the liquid that has been separated . The same applies to the area of the mouth of the depression conduit that flows into the separation chamber. Also this mouth area is at least partly surrounded inside the separation chamber in the peripheral direction by an intermediate storage area for the liquid that has been separated. An embodiment of this class offers the advantage that the hard surface aspiration apparatus according to the invention can be used working in any orientation with respect to the vertical. If the hard surface aspiration apparatus is used, for example, in such a way that the suction nozzle is, in relation to the vertical one, below the aspiration group, a suction flow can be formed and in the The separation chamber can separate liquid by means of the separation device, for which the liquid that has been separated can first accumulate in the at least one intermediate storage area surrounding the mouth of the suction duct. If the device

Hard surface aspiration is reused later in an orientation in which the aspiration nozzle is located higher than the aspiration group, then the liquid accumulated in the aforementioned intermediate storage area can flow through the hole discharge to the dirty liquid tank. If the hard surface aspiration apparatus according to the invention is used in a horizontal position, that is to say with an orientation in which the aspiration nozzle is located relative to the vertical at the same height as the aspiration group, then also with this orientation can form an aspiration flow, in which case the liquid that has been separated can accumulate in the intermediate storage areas surrounding the aspiration duct and the depression duct, to pass later, when the aspiration apparatus hard surfaces are again in an upright position, to the dirty liquid reservoir through the drain hole.

The hard surface aspiration apparatus according to the invention is therefore characterized by keeping the suction quality uniform, regardless of the level of filling of the dirty liquid reservoir and regardless of the position taken by the surface aspiration apparatus hard relative to the vertical. Therefore it is especially suitable for aspirating a film of water from window panes. The user can drive it along the window pane in the same way as is customary for the handling of the usual window cleaning devices where the liquid applied on the window pane is manually removed by means of a scraper that has a rubber lip

It is convenient that the separation device forms inside the separation chamber a shock wall located between the mouths of the suction duct and the depression duct. During operation of the hard surface aspiration apparatus, the vacuum cleaner group depresses the separation chamber, so that the mixture of liquid and air drawn through the aspiration nozzle is sucked into the separation chamber. The mixture crosses the area of the mouth of the suction duct and then falls into the stripping wall into which the liquid separates. The sucked air flows around the shock wall and can then be drawn from the separation chamber by the side of the shock wall away from the mouth of the suction duct through the mouth of the depression duct.

It is convenient that the impact wall has a convex curvature in the direction of the mouth area of the suction duct. This has the advantage that the sucked air can surround the impact wall with small losses of flow to reach the mouth of the depression duct.

In a preferred embodiment, an especially important separation effect is achieved when the impact wall covers the opening of the mouth of the depression duct. In this way the sucked air undergoes an intense change of direction within the separation chamber until it reaches the opening of the mouth of the depression duct. In this way the droplets of liquid entrained can be separated from the air flow inside the separation chamber in an especially effective manner.

Another increase in the separation effect can be achieved when a shock plate is located at a distance from the opening of the opening of the suction duct. With such a configuration, the mixture of air and aspirated liquid impacts the opening of the suction duct opening first on a shock plate and then passes into the interior space of the separation chamber in which the device is located from separation. A part of the aspirated liquid is already separated in the shock plate, and another part is separated from the aspirated air by the separation device.

The shock plate is preferably made flat and oriented with inclination with respect to the longitudinal axis of the suction duct. In this way, the losses of aspiration flow can be reduced, and the droplets of entrained liquid can be safely separated.

In a particularly preferred embodiment of the portable hard surface aspiration apparatus according to the invention, the mouth area of the aspiration duct enters into a housing gallery of the separation chamber that penetrates into the separation chamber, forming the accommodation gallery and the outer walls of the separation chamber at least one of the intermediate storage areas for the liquid that has been separated. The mouth area of the suction duct is received in the accommodation gallery, where it is firmly secured. This reduces the risk that the suction duct will suffer some mechanical damage. At least one of the intermediate storage areas in which the liquid that has been separated can be formed is formed between the accommodation gallery and the outer walls of the separation chamber, in the event that the surface suction apparatus hard have the corresponding orientation, especially if the hard surface aspiration apparatus works above the head, that is to say when the suction nozzle adopts a location located below the suction equipment, referring to the vertical. If at a later time the hard surface aspiration apparatus returns to work again in an upright position, so that the aspiration nozzle is located above the aspiration group, then the liquid accumulated in the at least one intermediate storage area between the housing gallery and the outer walls of the separation chamber, it can be drained through the discharge hole to pass to the dirty liquid reservoir.

It is convenient if the at least one buffer zone that is located between the gallery of

housing and the outer walls of the separation chamber widens in the direction of the separation device, as this facilitates the discharge of the accumulated liquid in the intermediate storage area. In particular, a continuous widening of the at least one intermediate storage area, which is located outside in the accommodation gallery, has proved particularly convenient.

The area of the mouth of the depression duct is preferably formed by a tubular part that penetrates inside the separation chamber. Inside the separation chamber, the tubular part may be surrounded in peripheral direction completely by one of the intermediate storage areas for the liquid that has been separated, that is to say that the area of the mouth of the depression duct is preferably surrounded through an intermediate storage zone annularly.

In an advantageous embodiment, the at least one intermediate storage zone that at least partially surrounds the area of the mouth of the depression conduit in the peripheral direction widens in the direction of the separation device. This facilitates the evacuation of the accumulated liquid from the intermediate storage area. Continuous widening has been especially advantageous.

The hard surface aspiration apparatus according to the invention can be carried by the user in one hand. It is convenient if the depression duct passes through a handle of the hard surface aspiration apparatus. The handle should preferably be completely surrounded by the user. This facilitates the conduction of the hard surface aspiration apparatus along the hard surface to be vacuumed, in particular along a window pane or a glass door.

In order to be able to clean the separation chamber from time to time and also to simplify the assembly of the hard surface aspiration apparatus, it is convenient that the hard surface aspiration apparatus comprises a base housing in which the equipment is housed. suction, and that the separation chamber is releasably connected with the base housing. For example, a quick spring connection or an elastic pressure joint can be used. In this way the separation chamber can be easily separated by the user from the base housing, in order to be able to clean the separation chamber. When assembling the hard surface vacuum cleaner it is simply necessary to connect the separation chamber with the base housing, for example by means of an interlock. Alternatively, a bolted joint can also be used, for example.

It is especially advantageous if the dirty liquid tank is made separably, so that the user can separate it from the remaining hard surface vacuum cleaner, for example to empty the tank. The dirty liquid reservoir is preferably releasably connected with the base housing of the hard surface vacuum cleaner. A quick spring connection or an elastic pressure joint can be used, but as an alternative a screw connection can also be provided, for example.

The suction nozzle is connected to the separation chamber preferably releasably. For example, it can be provided that the suction nozzle can be connected to the separation chamber by means of a quick spring connection or an elastic pressure joint. Alternatively, a screw connection can also be provided, for example.

It is especially advantageous if the hard surface vacuum apparatus has a base housing in which the suction unit is housed and in particular also rechargeable batteries, a separation chamber made as an independent component being releasably connected with the base housing, which in turn, it can be released in a releasable manner with a suction nozzle comprising the suction mouth and the suction duct, for which a dirty liquid reservoir is additionally provided that can be released releasably with the base housing and / or with the separation chamber.

In a preferred embodiment of the invention a discharge funnel is located in the drain hole of the separation chamber to transfer the liquid that has been separated from the separation chamber to the dirty liquid reservoir. Starting from the separation chamber, the discharge funnel narrows in the direction of the dirty liquid reservoir. This simplifies the drainage of the liquid that has been separated to pass it to the dirty liquid reservoir.

In order that during the operation of the hard surface vacuum cleaner apparatus liquid can flow into the dirty liquid tank it is necessary that the air inside the dirty liquid tank can escape from the tank. For this purpose, it is provided in a preferred embodiment that a ventilation channel penetrates the dirty liquid tank into the separation chamber. The dirty liquid reservoir can be vented through the ventilation channel. Starting from the dirty liquid tank, the ventilation channel penetrates into the separation chamber, so that the liquid that has been separated in the separation chamber can flow around the ventilation channel and reach the dirty liquid tank without obstacles, and that at the same time air can escape from the dirty liquid reservoir through the ventilation channel.

In order to prevent liquid from returning from the dirty liquid reservoir to the separation chamber, especially when working with the hard surface vacuum cleaner above the head, it is provided in an advantageous embodiment that inside from the dirty liquid reservoir penetrates a drain channel, by means

from which the dirty liquid reservoir is connected to the separation chamber. If you work with the hard surface aspiration apparatus above the head, so that the separation chamber is located below the dirty liquid reservoir, with respect to the vertical, then the liquid located inside the storage tank Dirty liquid can accumulate in the area surrounding the drainage channel without any risk of liquid leaking from the dirty liquid reservoir.

The following description of a preferred embodiment of the invention serves to provide a more detailed explanation, in combination with the drawing. In this one they show:

Figure 1: a perspective representation of a hard surface vacuum cleaner, and

Figure 2: A sectional view of the hard surface vacuum cleaner of Figure 1.

In the drawing, a portable apparatus for the aspiration of hard surfaces 10 is schematically shown by means of which a liquid can be aspirated from a hard surface, for example from a window pane. The hard surface vacuum apparatus 10 can be for this being held by the user with one hand on the handle 12, driving it along the hard surface in the same way as a conventional scraper that presents a rubber lip.

The hard surface vacuum apparatus 10 comprises a base housing 14, which forms the handle 12 and in which a vacuum cleaner 16 is housed with a suction turbine 17 and an electric motor 18. Inside the base housing 14 is located at least one rechargeable battery 19, in particular a lithium-ion battery for the power supply of the electric motor 18. At the bottom, the base housing 14 forms a support surface 21 for placing the hard surface vacuum cleaner 10 on a support surface.

On one side next to the base case 14 there is a dirty liquid tank 23 that can be separated from the base case 14, into which a filling device 25 with a drain channel 26 and a parallel oriented ventilation channel 27 penetrates. to the drain channel 26. The ventilation channel 27 protrudes from the top of the drain channel

26. On one side next to the filling device 25, the dirty liquid tank 23 has on its side away from the handle 12 a drain hole 31 that can be sealed tightly by a lid 29, to empty the liquid tank dirty 23.

Next to the base part 14 follows the base case 14 and the dirty liquid tank 23 a separation chamber 33 which is connected with the base case 14 releasably by means of a releasable elastic pressure joint. To release the elastic pressure joint, control buttons 34 are located on the outer side of the separation chamber 33. The separation chamber 33 has external walls in the form of an anterior wall 36 of concave curvature which is a continuation of the storage tank. dirty liquid 23, a rear wall 37 of convex curvature that follows the handle 12 and that in the form of side walls joins the front wall 36 and the rear wall 37 in one piece, of which side walls are only recognized in the drawing, specifically in figure 1, a side wall 38.

Inside the separation chamber 33 is a separation device in the form of a shock wall 40, which is curved in an arc. On the upper part, the separation chamber 33 is limited by a cover wall 42 that joins together the front wall 36, the rear wall 37 and the two side walls 38 forming a single piece, and in which a gallery is molded of housing 43 penetrating the separation chamber 33.

A suction nozzle 45 which carries a suction duct 47 follows the upper part of the separation chamber 33. The suction duct 47 starts from a suction nozzle 48 which is defined by a first flexible scraper lip 49 and a second flexible scraper lip 50, and penetrates with a mouth area 51 in the housing gallery 43. In the opening of the mouth 52 of the suction duct 47, away from the suction mouth 48, a support member 54 is located which distanced from the opening orifice 52, it supports a flat shock plate 57 inside the separation chamber 33, oriented in an inclined manner with respect to the longitudinal axis 55 of the suction duct 47.

Starting from the handle 12, the suction nozzle 45 widens in a transverse direction with respect to the longitudinal extension of the handle 12, so that the two scraper lips 49 and 50 extend along a multiple of the width of the housing base 14 and thus allow a hard surface to be covered to be covered with great extent, in particular a window pane.

The separation chamber 33 can be subjected to depression by the aspiration group 16. For this purpose the aspiration group 16 is in fluid communication with the separation chamber 33 through a depression conduit 60 that passes through the handle 12. A mouth area 61 of the depression duct 60 is made in the form of a piece of tube 62, which on the side of the impact wall 40 away from the mouth area 51 of the suction duct 47, penetrates into the interior of the separation chamber 33 The opening of the opening 63 of the depression duct 60 is covered by the impact wall 40 which has a convex curvature in the direction of the suction duct.

47. Because the separation chamber 33 is subjected to depression, an aspiration flow is formed from the

suction pump 48 through suction duct 47, separation chamber 33 and duct 5

depression 60. The sucked air can escape from the base case 14 through ventilation holes 65 made in the base case 14.

As already explained, the hard surface aspiration apparatus 10 can be conducted along the hard surface to aspirate liquid, as a scraper for cleaning a hard surface, in particular a window pane or A glass door In doing so, a mixture of liquid and air penetrates into the separation chamber 33 through the suction nozzle 48 and the suction duct 47, first impacting on the shock plate 57 disposed away from the opening of the opening 52 of the suction duct 47, where a part of the entrained liquid separates. Then the mixture of liquid and air strikes the impact wall 40 in which the rest of the entrained liquid is separated, while the aspirated air surrounds the impact wall 40 and is conducted through the depression duct 60 to the vacuum equipment 16. The liquid that has been separated inside the separation chamber 33 can flow through the drain channel 26 to the dirty liquid reservoir 23. For this purpose, the separation chamber 33 has a drain hole 67 in the which a drain funnel 68 is located. The drain funnel 68 narrows in a direction towards the dirty liquid reservoir 23. Under the drain funnel 68 is located the filling device 25 with the drain channel 26. The drain channel ventilation passes through the drain funnel 68 and penetrates into the separation chamber 33.

In Figures 1 and 2, the hard surface vacuum apparatus 10 is shown in an upright position, in which the suction nozzle 45 adopts a position located above the vacuum equipment 16, relative to the vertical. If the hard surface aspiration apparatus 10 is conducted in this position along a surface to be aspirated, then the liquid that has been separated into the separation chamber 33 can pass without problems to the drain hole 67 and through from the latter to the dirty liquid reservoir 23. On the other hand, if the hard surface vacuum apparatus 10 is operated in a horizontal position in which the suction nozzle 45 is located relative to the vertical essentially at the same height as the vacuum equipment 16 , or if working with the hard surface vacuum apparatus 10 above the head, such that the suction nozzle 45 is positioned relative to the vertical one below the suction equipment 16, then the liquid that has been separated in the separation chamber 33 it can first be accumulated in intermediate storage areas 71-73 of the separation chamber 33 until the surface suction apparatus Hard drives 10 are used again in the upright position shown in Figures 1 and 2. A first intermediate storage area 71 is located between the anterior wall 36 of the separation chamber 33 and the accommodation gallery 43, and a second Intermediate storage area 72 is positioned between the rear wall 37 of the separation chamber 33 and the accommodation gallery 43. Both intermediate storage areas 71, 72 are continuously enlarged in a direction towards the impact wall 40. The two Intermediate storage areas 71 and 72 extend in peripheral direction each along a part of the area of the mouth 51 of the suction duct 47.

A third intermediate storage area 73 extends through the interior of the separation chamber 33 annularly along the entire perimeter of the mouth area 61 of the depression duct 60. This third intermediate storage area 73 also goes widening continuously towards the impact wall 40.

The first and second intermediate storage areas 71 and 72 receive in particular the liquid that has been separated inside the separation chamber 33 when the hard surface vacuum cleaner 10 is in a position above the head, and the third zone of intermediate storage 73 receives especially the liquid that has been separated in the separation chamber 33 when the hard surface aspiration apparatus 10 is in a horizontal position, without the risk that the liquid that has been separated can pass through the suction duct 47 towards the suction nozzle 48 or the suction equipment 16 through the depression duct 60. If then the hard surface vacuum apparatus 10 returns to work again in an upright position, then the liquid that has accumulated in the meantime leaves intermediate storage areas 71, 72 and 73 and arrives at the dirty liquid reservoir 23 through the ori emptying hole 47 and emptying channel 26.

Since the drain channel 26 penetrates inside the dirty liquid tank 23, while its end 75 that penetrates the dirty liquid tank 23 is located approximately halfway up the dirty liquid tank 23, relative to the upright position shown in figures 1 and 2, when working the hard surface vacuum cleaner 10 in a horizontal position or above the head, there is also no risk that the liquid that has already passed to the dirty liquid tank 23, will escape again of the dirty liquid tank 23. The liquid inside the dirty liquid tank 23 accumulates in the area of the dirty liquid tank 23 surrounding the drain channel, when the hard surface vacuum cleaner 10 works in position horizontal or above the head.

The dirty liquid tank 23 can be vented through the ventilation channel 27 which runs parallel to the drain channel 26 in any position of the hard surface vacuum cleaner 10, so that air can escape from the dirty liquid tank 23 at any time. , which can then be aspirated from the separation chamber 33 through the depression duct 60.

The hard surface aspiration apparatus 10 can therefore work in any position relative to the vertical, in which case the liquid that has been separated in the separation chamber 33 can either pass directly to the dirty liquid reservoir 23 or be it first collects in the intermediate storage areas 71, 72 or 73 of the separation chamber 33 until the hard surface aspiration apparatus 10 returns to an upright position. The intermediate storage areas 71, 72 and 73 may each have a volume greater than 10 ml, for example a volume of about 20 ml.

Claims (17)

1.-Portable device for the aspiration of hard surfaces (10) with a suction nozzle (45) and a vacuum cleaner (16) which is in rheological communication with the suction nozzle (45) to aspirate a mixture of liquid and air from a hard surface, and with a separating device (40, 57) to separate the liquid from the mixture of liquid and air , as well as with a dirty liquid reservoir (23) to accommodate the liquid that has been separated, characterized in that a separation chamber (16) is located in the flow path between the suction nozzle (45) and the vacuum equipment (16). 33) in which the suction device (40, 57) is housed and through a suction duct (47) is in rheological communication with a suction mouth (48) of the suction nozzle (45), and through the depression duct (60) with the suction equipment (16), and through a drain hole (67) is in communication with a dirty liquid reservoir (23), the mouth areas (51, 61) of the suction duct and depression duct (47, 60), surrounded within the separation chamber (33) in peripheral direction at least partially of intermediate storage areas (71, 72, 73) for the liquid that has been separated. 2. Hard surface suction apparatus (10) according to claim 1, characterized in that the separation device forms inside the separation chamber (33) a shock wall (40) that is located between the mouth areas (51, 61) of the aspiration duct and depression duct (47, 60). 3.-Hard surface suction apparatus (10) according to claim 2, characterized in that the impact wall (40) has a convex curvature in the direction of the mouth area (51) of the suction duct (47). 4. A hard surface suction apparatus (10) according to claim 2 or 3, characterized in that the impact wall (40) covers the opening (63) of the depression duct (60). 5. - Hard surface suction apparatus (10) according to one of the preceding claims, characterized in that, a shock plate (57) is located distanced from the opening orifice (52) of the suction conduit (47). 6. Hard surface suction apparatus (10) according to claim 5, characterized in that the shock plate (57) has a flat shape and is inclined oriented with respect to the longitudinal axis (55) of the suction duct (47). 7. Hard surface suction apparatus (10) according to one of the preceding claims, characterized in that the mouth area (51) of the suction duct (47) enters a housing gallery (43) that penetrates the chamber of separation (33), where the accommodation gallery (43) and at least one outer wall (36, 37) of the separation chamber (33) define at least one of the intermediate storage areas (71, 72, 73 ). 8. - Hard surface suction apparatus (10) according to one of the preceding claims, characterized in that the area of the mouth (61) of the depression duct (60) is formed by a piece of tube (62) that penetrates the inside the separation chamber (33). 9. Hard surface suction apparatus (10) according to one of the preceding claims, characterized in that the area of the mouth (61) of the depression duct (60) is surrounded within the separation chamber (33) in the peripheral direction through one of the intermediate storage areas (71, 72, 73), this intermediate storage area (73) having an annular shape. 10. A hard surface suction apparatus (10) according to claim 7 or 9, characterized in that at least one of the intermediate storage areas (71, 72, 73) widens in the direction of the separation device (40, 57). 11.-Hard surface suction apparatus (10) according to one of the preceding claims, characterized in that the depression duct (60) passes through a handle (12) of the hard surface aspiration apparatus (10). 12. Hard surface suction apparatus (10) according to one of the preceding claims, characterized in that the hard surface suction apparatus (10) comprises a base housing (14) in which the suction equipment (16) is housed. , and because the separation chamber (33) is releasably connected with the base housing (14). 13.-Hard surface suction apparatus (10) according to claim 12, characterized in that the dirty liquid reservoir (23) is releasably connected with the base housing (14). 14.-Hard surface suction apparatus (10) according to one of the preceding claims, characterized in that the suction nozzle (45) is releasably connected with the separation chamber (33). 15.-Hard surface suction apparatus (10) according to one of the preceding claims, characterized in that a drain funnel (68) is located in the drain hole (68) to transfer the liquid that has been separated from the chamber of separation (33) to the dirty liquid reservoir (23). 16.-Hard surface suction apparatus (10) according to one of the preceding claims, characterized in that a ventilation channel (27) enters the separation chamber (27) that penetrates the dirty liquid reservoir (23). 17.-Hard surface suction apparatus (10) according to one of the preceding claims, characterized in that an emptying channel (26) penetrates into the dirty liquid tank (23), through which the dirty liquid tank (23) is in communication with the separation chamber (33).