FR2668517A1 - SANITARY APPARATUS FOR THE FORCED EVACUATION OF WASTEWATER. - Google Patents

Abstract

- The present invention relates to a sanitary device for the forced evacuation of wastewater, comprising a bowl (2) having, at its lower part, a siphon (3) and, at its upper part, a supply duct of rinsing water (24), and a device for pumping and crushing (5) waste water, connected on the one hand to the outlet (4) of the siphon and, on the other hand to the inlet of a pipe evacuation (14) of waste water, said device (5) comprising a motor (6) integral with a pump body (7), in which is housed a rotor (8) mounted on the drive shaft ( 10) of said motor. - According to the invention, said pumping and grinding device (5) is arranged below the outlet (4) of said siphon (3), said pump body (7) being arranged above said drive motor (6).

Description

The present invention relates to a sanitary appliance

  for the forced evacuation of waste water through

  a pumping and grinding device, more particularly intended to be installed in the lavatories.

  Patent FR-A-2 607 843 discloses such a device.

  Sanitary toilet having a bowl connected at its lower part to a siphon and having, at its

  upper part, a conduit for supplying rinsing water.

  In addition, a device for pumping and grinding wastewater is connected, on the one hand to the bowl and, on the other hand, to the inlet of a sewage discharge duct. This device comprises a solid-state engine. a pump body in which mounted blades are housed

  on the motor drive shaft.

  In this case, the motor-pump assembly is resiliently suspended at the rear of the bowl, and the pump is arranged horizontally below the engine. The suspension of said assembly is intended to eliminate the vibrations and noise of the engine during the operation of the engine.

the sanitary apparatus.

  However, this arrangement of the pump below the engine necessarily places the blades of the pump in

  a position close to the "ceiling" of the pump body.

  The air, lighter than the wastewater-passing through the pump casing, tends to occupy the upper part of

  the latter in the vicinity of the blades In order to avoid

  In the apparatus described in FR-A-2 607 843, an elevated discharge line is provided for the purpose of evacuating the air trapped in the pump body. at least to a certain extent, the priming of the pump after a period of rest and at the start of the next cycle, but does not solve the problems caused by the air sucked with the water

  spent through the pump during the operating cycle.

  This inevitably leads to

  decreased capacity of said pump and an increase in

  Significant noise of operating noise due to the presence of the mixture of sewage and air around the blades. This increase in noise greatly exceeds

  the gain obtained by the elastic suspension.

  Moreover, in certain special cases in which the appliance is connected to a pipe of the network forming a siphon outside or descending steep slope, the pump body, after the actuation of the apparatus, can be partially emptied of its fluid, which would cause the pump to be defused since the blades are located in the upper part of the

  pump body And, at the same time, it provokes

  would drain the bowl which, being deprived of its water, would cause upsets of odors. The present invention aims to overcome these disadvantages. For this purpose, the sanitary apparatus for the forced evacuation of wastewater, of the type comprising a bowl having, at its lower part, a siphon and, at its upper part, a conduit for supplying rinsing water , and a device for pumping and grinding wastewater, connected, on the one hand, to the outlet of the siphon and, on the other hand, to the inlet of a wastewater discharge pipe, said device comprising an engine integral with a pump body, in which is housed a rotor mounted on the drive shaft of said motor, is

  remarkable, according to the invention, in that said provision

  pumping and grinding apparatus is arranged below the outlet of said siphon, said pump body being

  disposed above said drive motor.

  Thus, the arrangement of the pumping and grinding device below the outlet of the siphon and the pump body above the drive motor ensures an ideal position for the rotor which is thereby constantly immersed. because it is at the "bottom" of the pump body The air that may be sucked in with the wastewater always remains at a level higher than that of the rotor and therefore does not affect the operation of the pump. In particular, the appearance of any Cavitation phenomenon and / or the risk of defusing the pump

are avoided.

  Advantageously, said siphon is an integral part of said bowl and a flexible elbow connector connects, with sealing, the outlet of said siphon at the inlet of said pump body.

  grinding device at the bowl.

  Preferably, the outlet of the siphon extends horizon-

  at the rear of said bowl and the motor-pump assembly is arranged vertically below

said output.

  According to another characteristic of the invention, said rotor comprises a plurality of blades for grinding the organic and fibrous materials contained in the wastewater. According to yet another characteristic of the invention, said pump body has a horizontal lateral outlet and said drainage duct.

  used, connected to said output, goes up vertically.

  To wedge the motor-pump assembly, the motor bottom cooperates advantageously with the base of the base of the bowl by a groove-tongue connection. In particular, said groove can be formed in the bottom of said motor while the tongue then makes protruding from said base of said base In addition, between the groove and the tongue can be arranged a strip of material

elastic.

  Generally, the apparatus is of the type comprising, at the upper part of said bowl, a distribution chamber for the rinsing water. In this case, according to the invention, a wall of said distribution chamber has an opening for connection. a flushing water duct whose geometry is such that, once the duct in place, at least one air passage

  remains between the said conduit and the edge of the said opening

  ture. According to an exemplary embodiment, said opening is defined by a central mounting hole of said conduit and

  two air passages, crescent-shaped, disposed respectively on either side of said central hole.

  According to another embodiment, said opening

  is defined by a central mounting hole of said conduit and an air passage connected to said central hole and leading to

  singing in the ceiling of said dispensing chamber.

  According to another characteristic of the invention, the appa-

  It includes a non-contact controller for its operating cycle.

  Advantageously, said non-contact control device comprises at least one photocell

  which leads to a side wall of the upper part of

of said apparatus.

  The figures of the appended drawing will make it clear how the invention can be realized. In these figures,

  identical references designate elements

  lar. Figure 1 is a longitudinal section of an example of

  realization of the sanitary apparatus according to the invention.

  FIG. 2 is an enlarged view, along the arrow F of FIG. 1, of the rear wall of the chamber of

  dispensing rinsing water of said apparatus.

  FIG. 3 is a partial section along the line

III-III of Figure 2.

  FIG. 4 is a view, similar to FIG. 2, of a

  variant embodiment of said rear wall.

  FIG. 5 is a view from above of the wall shown

in Figure 4.

  Figure 6 schematically illustrates a sanitary apparatus

  of the invention with a control device without

  contact of the operating cycle thereof.

  FIG. 7 is an enlarged view of said device

command associated with the device.

  Referring to Figure 1, the sanitary appliance 1 for the forced evacuation of wastewater comprises a bowl 2 having, at its lower part, a siphon 3 As shown in Figure 1, the siphon 3 can be an integral part of the bowl 2 and be made, like the latter, of ceramic, sandstone or the like This siphon 3 has, at the rear of the bowl 2, a horizontal outlet 4 below which is arranged, according to the invention, a This device 5 comprises a motor 6 integral with a pump body 7, in the lower part of which is housed a rotor 8, provided with blades 9 and mounted on the drive shaft. In addition, the pump body 7 is disposed above the drive motor 6 and, advantageously, the motor-pump assembly is arranged vertically below the horizontal outlet 4 of the siphon 3. an elbow connector 11 connects, with sealing, the outlet 4 of the sip hon 3

  at the inlet 12 of said pump body 7 A lateral exit

  horizontal channel 13 is formed in the pump body 7, outlet which is connected to one end of a waste water discharge conduit 14 This exhaust duct 14 is bent and lifts vertically to be put into communication, by its other end, with

Line 15 of the network.

  This arrangement of the evacuation duct 14, elevated with respect to the pump body 7, makes it possible to maintain in the bowl 2 a sufficient water reserve. The level of water 16 in the bowl 2 and the siphon 3 is in fact determined by the height of the exhaust duct 14 Moreover, the siphon 3 guarantees a minimum water resistance, indicated by the reference 16a, thus avoiding any ascent

odors.

  Thus, as already indicated, the arrangement of the device 5 below the outlet 4 of the siphon 3, and the pump body 7 above the drive motor 6 ensures an ideal position for the rotor 8 which is constantly immersed . It is noted in Figure 1 that this arrangement of the device 5 under the outlet 4 of the siphon 3 is made possible by the compactness of said device, and it also allows the easy emptying of the pump body 7 and the convenient inspection of the duct. evacuation 14 in case

  obstruction of the latter by an accidental thrown object.

so much in the bowl.

  Furthermore, in the bottom of the engine 6 is formed a groove 17 which cooperates with a tongue 18 projecting from the base 19 of the base 20 of the bowl 2,

  to lock the pumping and grinding device 5.

  This tongue may be the bar connecting the two walls of the base In order to improve the damping of the noise and vibrations generated by the device, a band of elastic material 21 is provided between the

groove 17 and the tongue 18.

  In addition, in the usual manner, the bowl 2 has at its upper part a chamber 22 for dispensing rinsing water, the rear wall 23 of which is traversed by a conduit 24 for supplying this rinsing water.

  chamber 22 feeds an annular chamber 25 which leads to

  through openings 26 inside the bowl 2.

  With reference to FIGS. 2 to 5, the rear wall 23 is provided with an opening 27 for connecting the duct 24 by means of a flexible ring 28. In addition, the geometry of the opening 27 is such that, once the duct 24 set up thanks to the ring 28, at least one air passage 29 remains between the duct 24 and the edge of the opening 27. More particularly, in FIG. 2, two opposite air passages 29, each crescent-shaped, are provided on either side of a central hole 36 for the duct 24 In the embodiment of the rear wall 23, shown in Figures 4 and 5, a single passage of air 29 is provided, which opens into the ceiling 35 of the chamber of

  distribution 22, and is connected to a central hole 36.

  Said passages 29, on the one hand, facilitate the introduction

  tion of the ring 28 and thus the introduction of the conduit 24 and, secondly, constitute, after the attachment of the duct, air intakes, which participate in avoiding any phenomenon of siphoning of wastewater in the adduction of water in case of obstruction or overflow of the bowl. Referring now to Figures 6 and 7, the sanitary apparatus 1 comprises a contactless control device 31 of its operating cycle, provided for example with a photocell 32 which opens onto a side wall 33 of the upper rear part. This photocell 32 detects the presence of the hand 34 of the user, or any other object passing through his field of action, at a distance of

  certain distance from the fixture 1.

Claims (10)

  Sanitary apparatus for the forced evacuation of wastewater, of the type comprising a bowl (2) having, at its lower part, a siphon (3) and, at its upper part, a conduit for supplying rinsing water (24), and a device for pumping and grinding (5) waste water, connected, on the one hand to the outlet (4) of the siphon and, on the other hand to the inlet of an exhaust duct (14) wastewater, said device (5) comprising a motor (6) integral with a pump body (7), in   which is housed a rotor (8) mounted on the drive shaft   (10) of said engine, characterized in that said pumping and grinding device (5) is arranged below the outlet (4) of said siphon (3), said pump body (7) being arranged   above said drive motor (6).   2 Apparatus according to claim 1, characterized in that said siphon (3) is an integral part of said bowl (2) and in that a flexible elbow (11) connects, sealingly, the outlet (4)   said siphon at the inlet (12) of said pump body.   3 Apparatus according to claim 2, characterized in that the outlet (4) of the siphon (3) extends horizontally at the rear of said bowl (2) and in that the motor assembly (6) pump (7) is   disposed vertically below said outlet (4).   Apparatus according to any one of claims 1   at 3, characterized in that said rotor (8) has a   plurality of blades (9) for grinding the organic materials   fibrous substances contained in wastewater.   Apparatus according to any one of claims 1   at 4, characterized in that said pump body (7) has a horizontal side outlet (13) and that said waste water discharge duct (14) connected to   said output, goes up vertically.   Apparatus according to any one of claims 1   to 5, characterized in that the bottom of the motor (6) cooperates with the base (19) of the base (20) of the bowl (2) by a groove-tongue connection.   Apparatus according to claim 6, characterized in that said groove (17) is provided   in the bottom of said engine (6), while said lan-   guette (18) protrudes from said base (19) of said base.   Apparatus according to one of claims 6 or 7,   characterized in that between the groove (17) and the tongue (18) is arranged a web of material elastic (21).   Apparatus according to any one of claims 1   to 8, of the type comprising, at the upper part of said bowl (2), a distribution chamber (22) for the rinsing water, characterized in that a wall (23) of said distribution chamber (22) has an opening (27) for connecting the flushing water conduit (24), whose geometry is such that, once the duct in place, at least one air passage (29) remains between said   conduit (24) and the edge (30) of said opening (27).   Apparatus according to claim 9, characterized in that said opening (27) is defined by a central hole (36) for mounting said duct (24) and two air passages (29), crescent-shaped, disposed respectively from and other of said hole central (36).   11 Apparatus according to claim 9, characterized in that said opening (27) is defined by a central hole (36) mounting said conduit (24) and an air passage (29) connected to said central hole (36) and opening in the ceiling (35) of said chamber of distribution (22).   Apparatus according to any one of claims 1   11, characterized in that it comprises a device for   non-contact control (31) of its operating cycle   is lying. Apparatus according to claim 12, characterized in that said non-contact control device (31) comprises at least one photocell (32) which opens onto a side wall (33) of   the upper part of said apparatus (1).