FR3007775A1 - AUTOMATIC SANITARY INSTALLATION - Google Patents

Abstract

The invention relates to an installation comprising a sanitary room (S) in which is disposed a toilet bowl (6), a technical room (7) separated from the sanitary room (5) by a partition (3), and a device for washing (11) associated with a movement mechanism (12), able to move said washing device (11) between a retracted position in the technical room (5) and a position deployed above said lavatory bowl (6) ) to clean it. The displacement mechanism (12) comprises first and second scissor-actuated lever arms controlled to pivot between a folded position corresponding to the retracted position of the washing device and an unfolded position corresponding to the deployed position of the washing.

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to sanitary installations with automatic washing and especially to sanitary installations for public use. The invention relates, in particular, to a sanitary installation comprising a sanitary room in which is disposed a toilet bowl, and a technical room 10 separated from the sanitary room by a partition, said installation further comprising a washing device mounted movably in the technical room and movable to above said toilet bowl for cleaning. BACKGROUND ART Document FR 2,744,743 describes a sanitary installation of the type defined above, the washing device of which is designed in the form of a retractable drawer in the technical room. The washing device in drawer form has the disadvantage of occupying a relatively large volume in the technical room, requiring in particular a relatively large depth of this technical room in the sliding direction of the drawer. OBJECT OF THE INVENTION The present invention is intended to overcome this disadvantage. For this purpose, according to the invention, the installation is remarkable in that the movement mechanism comprises first and second lever arms articulated together in scissors and respectively comprising rear ends connected to a fixed frame and front ends. connected to the washing device, said first and second lever arms being controlled to pivot between: - on the one hand, a folded position corresponding to the retracted position of the washing device, wherein the first and second lever arms form between them a small angle and are arranged substantially vertically in the technical room, - and secondly, an unfolded position corresponding to the deployed position of the washing device, where the lever arms form between them a larger angle.

Thanks to the articulated nature of the movement mechanism, the washing device occupies a small place in the technical room when the lever arms adopt the folded position. As an indication, the width occupied by the washing device does not exceed or slightly 350 mm. Moreover, thanks to the invention, the vertical load accepted at the end of the bowl, during cleaning, is of the order of 150 DaN.

The installation according to the invention may also comprise the following characteristics, taken separately or in combination: the washing device may be fixed on a support, with the first lever arm having a first end pivotally mounted on said support and a a second end pivotally mounted to the fixed frame, and - the second lever arm having a first end guided with respect to the support of the washing device and a second end guided on the fixed frame; - The support of said washing device may be a plate adapted to close the opening of the partition in the retracted position of the washing device; the first end of the first lever arm can be arranged under the first end of the second lever arm; the first and second lever arms can be controlled by an electric jack; The washing device may comprise means for projecting a washing liquid; the projection means may comprise at least one ramp of washing nozzles adapted to project pressurized washing liquid over the entire width of the toilet bowl; the washing nozzles can be oriented in at least two different directions; the washing nozzles may be flat jet nozzles that flare at an angle of substantially 120 ° C; The washing device may further comprise drying means adapted to dry said toilet bowl; - The drying means may comprise at least one flat nozzle 30 for projecting an air knife extending substantially over the entire width of the toilet bowl; the installation may comprise an air / water venturi mixer which is fed by a booster and which is connected to a tubular inlet opening into a siphon of the lavatory, said air / water venturi mixer being placed at a higher than that of the toilet bowl. BRIEF DESCRIPTION OF THE DRAWINGS Other features and advantages of the invention will become apparent from the following description of one of its embodiments, given by way of non-limiting example, with reference to the accompanying drawings. In the drawings: FIG. 1 is a perspective and partly torn view of an installation according to the invention; FIG. 2 is a perspective view of a part of the installation according to the invention comprising a articulated mechanism, the articulated mechanism being in the deployed position, - Figure 3 shows the installation part shown in Figure 2, perspective view, the articulated mechanism being in the retracted position, - Figure 4A is a second perspective view of three rear quarter of the installation part shown in FIG. 2, FIG. 4B is a perspective view of three quarter rear of the installation part shown in FIG. 4A, showing only certain elements of the installation shown in FIG. 4A, FIG. 5 shows air blowing means of the washing device of the installation according to the invention; FIG. 6 is a perspective view of the device for spraying a washing liquid of the ins According to the invention, FIG. 7 shows a projection nozzle belonging to the projection device of FIG. 6; FIG 8 is a sectional view of a toilet bowl of the installation shown in Figure 1, and Figure 9 is a sectional view of a device for producing water under pressure, that includes the 'installation.

DETAILED DESCRIPTION Figure 1 shows a sanitary installation S according to one embodiment of the invention, constituting a sanitary installation for public use. This sanitary installation S comprises an outer enclosure which is classically subdivided by a partition 3 between a sanitary facility 5 accessible to the public, and a technical room 7 accessible only to maintenance personnel and housing mechanical and electronic devices for automated operation of the machine. 'health facility. A majority of these devices is carried by a frame 1 (for example a metal frame) which is arranged in the technical room 7. This frame 1 has a front face 2 facing the partition 3 and a rear face 4 open to the opposite the partition 3, so that maintenance personnel can access the various devices carried by the frame 1. 25 The partition 3 divides the sanitary installation S into two premises: a sanitary room 5 located in front of the partition 3, which comprises a toilet bowl 6, and a technical room 7 located behind the partition 3. The technical room 7 comprises all the elements 30 housed in the frame 1, accessible from the rear face 4 of the frame. The elements furthermore comprise an electrical cabinet 10, a water tank 8 fed by a water inlet 9 connected to the public water distribution network 35 and a wastewater evacuation system (not shown in FIG. 1) from the toilet bowl 6. Among the elements included in the technical room 7, there are also elements (described below) ensuring the operation of a washing device 11 and a moving mechanism 12 associated with the washing device 11. The washing device 11 is movable by the displacement device 12 between the deployed position visible in FIG. 2, where the washing device can wash and dry the bowl 6, and the retracted position visible on the Figure 3, where it is completely retracted into the technical room 7 thus allowing the use of the sanitary facility by the public. For this purpose, the partition 3 comprises a hatch 3a 15 which, in the retracted position of the washing device 11, is closed by a plate 14 carrying said washing device 11. In the deployed position, the washing device 11 passes into the sanitary room through this hatch 3a, led by the plate 14 which is driven by the displacement device 12. The displacement mechanism 12 will now be described with reference to Figures 2 to 4B. The displacement mechanism 12 according to the invention is an articulated mechanism movable between the retracted position and the deployed position mentioned above. In the retracted position, the articulated mechanism occupies a very small space, allowing it not only to fit into the frame 1, but also to occupy a minimum space inside said frame 1. As can be seen from FIG. see Figure 3, in the retracted position, the articulated mechanism is folded on itself and extends vertically in the technical room 7. It occupies substantially only half the depth of the frame. In this way, other elements can be fixed to the frame 1 behind the articulated displacement mechanism 12. Moreover, thanks to this retractable hinged mechanism, the frame can have smaller dimensions than those of the frames of the conventional sanitary installations. . The articulated displacement mechanism 12 comprises a substantially rectangular frame 15 having two long sides 16 and two short sides 17. The two long sides 16 form two first lever arms 16. An upper end 18 of each of the large sides 16 is pivotally mounted around an axis X pivot provided on the plate 14, that is to say on the support of the washing device 11. Another lower end 19 of each of the long sides is pivotally mounted about a second axis 15 pivot X 'provided in the technical room 7. In particular the second pivot axis X' through the frame 1. The pivot of the lower ends 17 of the long sides 16 of the frame is provided by the actuation of a cylinder 20. The cylinder 20 is preferably an electric jack. It is connected to a control module located, for example, in the electrical cabinet 10. An end 21 of the jack is connected to a crossbar 22 of the frame 15, the other end 23 of the jack is pivotally mounted on a support 24 fixed to the frame 1. Thus, the long sides 16 of the frame 15 transmit the movement of the cylinder 20 to the plate 14 supporting the washing device 11, thus ensuring its displacement. The articulated displacement mechanism 12 also comprises, as can be seen in FIGS. 2 and 4, two second lever arms 25, parallel to one another, located on either side of the frame 15, and connected to the frame 15 by a pivoting joint 26 (Figure 3), substantially in the middle of the length of each arm 35 and three quarters of the length of each of the connecting rods 16 (or large sides of the frame 15). The arms 25 connected to the rods 16 thus form a device of the scissors type. The second arm 25 serves to guide the plate 14 so that the latter tilts in the deployed position.

A first end 27 of the arms 25 is slidably mounted in rails 28 fixed in the technical room 7, on the frame 1. The rails 28 are oriented substantially in a slightly inclined direction with respect to a vertical axis. The ends 27 are equipped with wheels 29 capable of rolling in the rails 28. Two other ends 31 of the arms 25, opposite the ends 27, are also equipped with rollers 29 which bear against the rear face of the plate 14 (FIG. 4) . The rear face of the plate 14 may also comprise two protruding ribs 32, along which the rollers 29 may be guided to roll on the plate 14. It will be noted that the rollers 29 could be replaced by any other similar connection, for example a link slidably between pivots carried by the end 31 of the arms 25 The washing device 11 further comprises washing and drying elements, fixed to the bottom end 33 of the plate 14. In this way, a washing liquid and a Drying air blade can be projected at short distance on the bezel 34 of the toilet bowl 6, for optimized washing and drying. In particular, a washing liquid can be projected at a distance of substantially 4 cm above the toilet bowl 6, and a drying air blade can be projected at a distance of substantially 2 cm. In more detail, the washing device 11 comprises means for projecting a liquid (see FIGS. 4A to 7) comprising a tube 35 pierced with several holes 36 each accommodating a nozzle 37 (shown only in FIG. 7). The holes 36 each equipped with a nozzle 37 are distributed equidistantly over the entire length of the tube 35, corresponding substantially to the width of the toilet bowl 6. More precisely, in the context of this example, the tube 35 is equipped with three holes 36: a central hole and two lateral holes. The central hole 36 is oriented in a first direction, and the lateral holes are oriented in a direction different from that of the central hole. Each of the nozzles 37, an illustrative example of which is given in FIG. 7, comprises an inlet 38 of liquid of cylindrical shape, connected to a constriction 39 allowing the diffusion 40 of a jet 41 of pressurized product which is substantially flat and flares out at an angle of substantially 120 °.

Thus, with only three jets 41, one can spray a surface at least as wide as the width of the toilet bowl 6. The cylindrical inlet 38 of the nozzle 37 is preferably threaded (reference 42) to be screwed into a hole 36. The tube 35 is closed at one of its ends, and open at another end 43 to allow a connection of the tube to a water supply hose (not shown to simplify the reading of the figures).

The hose is connected at its other end to a booster device 46 fixed to the frame 1 in the technical room. The booster 46 provides a liquid injection under pressure in the hose to increase the washing efficiency. Canisters 47 of disinfectant liquid may also be arranged in the technical room and connected to the arrival of washing liquid in the tube 35. The tube 35 may, for example, be fixed by tabs 44 under a box 45 for blowing air. 5 is shown in FIG. 5. The box 45 is fixed under the plate 14 and defines therewith a chamber 48 of convergent section, having an upper end 50 of air inlet which is narrow in width and large in height, compared to its lower air outlet end 51 which is wide and small in height, delimiting a thin slot 51 with the plate 14. This slot 51 constitutes a flat nozzle adapted to create an air gap which extends over any the width of the toilet bowl 6 during blowing.

The chamber 48 is supplied with air by a tubular inlet 49 connected to the inlet end 50 of the chamber 48. A connecting flexible pipe 49 'connects the tubular inlet 50 and a fan 52 (FIGS. 2 and 3) fixed on the chassis 1.

FIG. 8 shows various elements that comprise the lavatory bowl 6. Among these elements, the lavatory bowl 6 comprises a hollow block having an internal volume large enough to accommodate a receptacle 55 substantially in the form of a truncated cone and a siphon 56. The receptacle 55 has, at a first end 55 ', a peripheral annular edge 57, forming a seat for a user of the toilet bowl 6. The annular edge bears on an edge 58 of the hollow block 54. The edge 58 of the hollow block 54 defines a receiving opening of the receptacle 55. The other end 59 of the receptacle 55 is sealingly connected to a first end 60 of the siphon 56. A second end 61 of the siphon 56 is connected by a pipe 56a, to the evacuation of wastewater. A hatch 62 is provided below the hollow block 54, to allow maintenance of the toilet bowl 6 if necessary. The installation further comprises a flushing device capable, if necessary, of ejecting towards the wastewater outlet elements closing off the latter.

These means comprise the booster 46 mentioned above, which preferably feeds an air-water venturi mixer 63 (FIG. 9) itself connected by a pipe 63a to a tubular inlet 64 opening into the siphon 56 and directed towards the outlet of said siphon. The blower selectively supplies either the mixer 63 or the washing nozzles 37 (or other water delivery device 37 'that could be included in the installation according to the invention), the distribution of water under pressure being controlled by solenoid valves 9 'or others. The air-water mixer 63 with venturi will now be described with reference to FIG. 9. The venturi mixer 63 has an inlet 64 'connected to the booster and an outlet 65 connected to the pipe 63a.

The inlet 64 'communicates with a convergent 66 opening into a mixing chamber 67 of larger section, into which also an air inlet 70 communicating with the atmosphere opens, which mixing chamber communicates with the outlet 65 by a second converge 68.

The air-water mixture is made in the mixing chamber 67 by suction of air through the air inlet 70, by the venturi effect, under the effect of the depression created in the mixing chamber 67 by the ejection of water under pressure from convergent 66.

Thanks to the injection of the pressurized air / water mixture in the siphon 56 during the flushing operation during the automatic cleaning process of the sanitary installation, the potentially bulky objects of the siphon (paper, cans) , etc.) are evacuated with wastewater, and this with great efficiency despite a relatively low water consumption. For example, the ejection power of the siphon was tested by injecting water into the siphon by means of a pipe. In the first case, the pipe was not connected to the venturi mixer, and in the other case, the pipe was.

In the first case, the jet of water obtained reached 1 m. In the second case, the jet of water obtained reached 1.3 m. Owing to the presence of the water / air venturi mixer, it is possible, in particular, to dislodge hand towel balls 8 cm in diameter, present in the siphon. We will now describe the operation of the installation according to the invention. After the departure of a user of the installation according to the invention, the operation of the washing device is triggered. The jack 20 unfolds and pushes linearly the two arms 16, which causes a displacement of the washing device 11 above the bowl. The speed of movement of the washing device 11 may be substantially 70 mm / s. Simultaneously with the deployment of the jack, the washing liquid is thrown by the nozzles 37 over a complete stroke of the washing device 11, that is to say from the retraction of the plate 14 to a position of the device washing it is above the end of the toilet bowl 6. The complete output of the washing device takes about ten seconds. It should be noted that, thanks to the movement mechanism 12, the washing system allows a recoil of 500 mm with respect to the axis of the toilet bowl 6 to the right of the latter (which allows in particular an adaptation from the washing device to sanitary larger, especially for disabled people, exceeding 420 to 700 mm the length of conventional toilet bowls). Furthermore, the pressure of the washing nozzles 37 is substantially 8 bar. After a first wash, the washing device 35 carries out a second washing by moving in the other direction, towards the partition 3 until reaching the other end of the toilet bowl 6 (that is to say without however returning completely to the edge of the partition 3). This return takes about five seconds. Then, an air knife is projected on the toilet bowl 6 on a return trip of the washing device 11 above the toilet bowl 6. The air is projected under pressure thanks to the high pressure fan 52. Finally, the washing device returns to the retracted position in the frame 1 and the plate 14 closes the partition 3. The complete output of the mechanism in the drying phase lasts about five seconds and the complete retraction of the mechanism in the hard drying phase about ten seconds.

The complete cleaning of the toilet bowl 6 uses about 4 liters of water, by carrying out the washing process just described for about thirty seconds (drying included). After washing and drying the toilet bowl 6, the flush system is triggered. To do this, the air / water mixture, obtained through the venturi mixer, is thrown into the siphon for a period of about two seconds. A one-second projection time can be provided for an economical wash control.

Claims (12)

REVENDICATIONS1. Sanitary installation (S) comprising a sanitary room (5) in which is disposed a toilet bowl (6), and a technical room (7) separated from the sanitary room (5) by a partition (3), said sanitary installation ( S) further comprising a washing device (11) associated with a displacement mechanism (12) adapted to move said washing device (11) through an opening in the partition between a retracted position in the room technique (5) and a position deployed above said toilet bowl (6) for cleaning, characterized in that said movement mechanism (12) comprises first and second lever arms articulated with each other in scissors and comprising respectively rear ends connected to a fixed frame and the front ends connected to the washing device, said first and second lever arms being controlled to pivot between: - on the one hand, a folded position corresponding to the posi retraction of the washing device, wherein said first and second lever arms form a low angle between them and are arranged substantially vertically in the technical room, and secondly, an unfolded position corresponding to the deployed position of the washing device wherein said lever arms form a larger angle between them. 2. Installation according to claim 1, in which -the washing device is fixed on a support (14), - the first lever arm (16) has a first end (18) pivotally mounted on said support (14) and a second end (19) pivotally mounted on the fixed frame (), - the second lever arm (25) has a first end (31) guided with respect to the support of the washing device and a second end (27) guided on the fixed frame . 3. Installation according to claim 2, wherein the support (14) of said washing device (11) is a plate adapted to close the opening of the partition in the retracted position of the washing device. 4. Installation according to claim 2 or claim 3, wherein the first end of the first lever arm is disposed under the first end of the second lever arm. 5. Installation according to any one of the preceding claims, wherein the first and second lever arm are controlled by an electric jack (20). 6. Installation according to any one of the preceding claims, wherein said washing device (11) comprises means for projecting (35) a washing liquid. 7. Installation according to claim 6, wherein the projection means (35) comprise at least one ramp of washing nozzles (36, 37) adapted to project pressurized washing liquid over the entire width of the toilet bowl. (6). 8. Installation according to claim 7, wherein said washing nozzles (36, 37) are oriented in at least two different directions. The plant of claim 7 or claim 8, wherein said wash nozzles (37) are flat jet nozzles which flare at an angle of substantially 120 ° C. 10. Installation according to any one of the preceding claims, wherein said washing device (11) further comprises drying means (45) adapted to dry said toilet bowl (6). 11. Installation according to claim 10, wherein said drying means (45) comprise at least one flat nozzle (51) for projecting a blade of air extending substantially over the entire width of the toilet bowl. (6). 12. Installation according to any one of the preceding claims, comprising an air / water venturi mixer (63) which is fed by a booster (46) and which is connected to a tubular inlet (64) opening into a siphon (56). of the toilet bowl (6), said mixer / water venturi being placed at a level higher than that of the toilet bowl (6).