EP1098042A1 - Vorrichtung zum Verkleinern von Material, z.B. für Toilettenbecken - Google Patents

Vorrichtung zum Verkleinern von Material, z.B. für Toilettenbecken Download PDF

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Publication number
EP1098042A1
EP1098042A1 EP00402991A EP00402991A EP1098042A1 EP 1098042 A1 EP1098042 A1 EP 1098042A1 EP 00402991 A EP00402991 A EP 00402991A EP 00402991 A EP00402991 A EP 00402991A EP 1098042 A1 EP1098042 A1 EP 1098042A1
Authority
EP
European Patent Office
Prior art keywords
grid
knife
shaft
pump
subassembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00402991A
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English (en)
French (fr)
Other versions
EP1098042B1 (de
Inventor
Jean-Claude Perdriel
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1098042A1 publication Critical patent/EP1098042A1/de
Application granted granted Critical
Publication of EP1098042B1 publication Critical patent/EP1098042B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
    • B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
    • B02C18/10—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged above container
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/10—Waste-disintegrating apparatus combined with the bowl

Definitions

  • the present invention relates generally to a device for maceration intended to equip a water closet bowl, usually called W.-C ..
  • W.-C . Such devices are known per se, they cut the material discharged from the toilet bowl so that it can be sent through diameter pipes of little importance usually intended for the evacuation of waste water from sinks, showers, bathtubs, ..., that is to say water containing no materials.
  • the water from the flush and the materials it entrains are brought into a bowl with perforated wall which is placed in an enclosure forming a reservoir.
  • a knife arranged at the bottom of the bowl and driven in rotation by an electric motor, ensures shredding fragmented materials that can be entrained with the flushing water through the holes in the bowl and fall into the bottom of the enclosure where they are drawn in and discharged into the evacuation piping by the action of a pump.
  • the materials are sucked by the pump through an assembly comprising a knife and a cutting grid.
  • a knife driven in rotation in front of a perforated grid, the axis of rotation of said knife being perpendicular to the plane of the grid.
  • the grid is fixed in the material supply duct and the knife is carried by the axis of the pump.
  • the knife rotates at a speed of around 3000 rpm and must be placed at a distance from the grid between 2 and 6 hundredths of a millimeter to ensure the shredding of materials in good Working conditions. It is therefore necessary to extremely precise the flatness of the knife and grid surfaces, their axial positioning and the space separating them so that the shredding is carried out properly and that the knife does not rub against the grid due to a bad alignment.
  • the invention aims to propose a device according to the second mode of design realization such that the assembly and the interventions are simple to achieve.
  • the material shredding device by example intended to equip a water closet bowl, in which the materials are sucked by a pump through a perforated grid in front of which turns a knife, is characterized in that said device comprises a grid-knife sub-assembly removable coupled to the end of the pump outlet shaft by means of a piece coupling, said knife-grid subassembly comprising a shaft which crosses the grid and carries the knife and fixing and adjusting means ensuring the adjustment of the position of the knife in relation to the grid.
  • the device for shredding materials discharged from a toilet bowl comprises in known manner an enclosure 1 in which the flushing water and the materials are brought through an orifice 10.
  • This enclosure 1 forms a tank at the bottom from which materials and water fall.
  • An electric pump 12 is arranged in enclosure 1 to suck materials and water and send them into the tubing 13.
  • the device according to the invention is of the type in which the materials and the water are sucked by the pump 12 through an assembly comprising a grid 30 and a knife 31 disposed in front of the inlet port of the pump bottom 20 which ensures their shredding before their rejection by the nozzle 21 towards the evacuation pipe 13.
  • the pump bottom 20 constituted for example by a molded plastic part is, in the embodiment shown in drawing, secured to the pump body 12 by the use of latching means 22.
  • the grid 30 is fixed to the pump bottom 20 by fixing means 33, for example screws.
  • This grid 30 is crossed by holes 32 and the knife 31 is disposed parallel to the external surface of the grid 30 so as to cut the materials sucked through said orifices 32 by the action of pump 12.
  • a grid-knife subassembly removable 300 such as that shown in FIG. 3.
  • This knife-grid sub-assembly is manufactured independently of the rest of the shredder this which allows to control the surface conditions and to precisely adjust the position of the grid 30 and the knife 31 during assembly in the factory.
  • the perfectly adjusted sub-assembly 300 is provided with a shaft which crosses the grid and carries the knife, and is coupled to the end of the outlet shaft 15 of the pump 12 during assembly of the shredding device after fitting a part Coupling 14.
  • this coupling is carried out from the outside of the pump bottom 20, it ends with the fitting of the fixing means 33 which secure the grid and the pump bottom 20.
  • This arrangement makes it possible to provide a sub-assembly 300 whose adjustments can be very precise and that can be disassembled, reassembled or replaced from fairly simple way during maintenance or repair operations without said adjustments are altered.
  • the sub-assembly knife grid 300 comprises a shaft 34 having, at a first end, a parallelepiped end 40 intended to be positioned in an orifice 140 in the part coupling 14.
  • the shaft 34 passes through the grid 30 and carries the knife 31 at its second end. Fixing and adjustment means ensure the desired positioning of the knife in relation to the grid.
  • the sub-assembly according to the invention then comprises a device 39 allowing a correction of the perpendicularity faults between the shaft 34 and the grid 30 arranged on the side of the grid 30 opposite the knife 31 which could be generated when positioning the base of the knife parallel to the grid, due to defects in parallelism between the faces perpendicular to the axis of the different parts used in assembly or perpendicularity defects between the shaft and said different parts.
  • this device 39 includes a core 41 formed on the shaft 34, a skirt 44 and two pins 42 and 43.
  • the core 41 is constituted by a portion of the shaft 34 having a diameter more important than the rest of said shaft 34. It is cylindrical and ends in two faces planes perpendicular to the shaft 34, the first, 45, is arranged at the foot of the end piece parallelepiped 40 and the second, 46, is intended to be arranged opposite the upper face of the grid 30.
  • the skirt 44 is a tubular piece intended to cover the core 41, its radius internal is greater than the external radius of said core 41 so that it can move angularly with respect thereto, it carries a fallen edge 47 whose opening central to a diameter slightly greater than the diameter of the shaft 34.
  • the core 41 is crossed by two radial bores 48, 49, perpendicular to each other and crossing each other.
  • the bore 48 is of a diameter such that it allows the insertion of the pin 42, while the bore 49 is of a diameter such that it allows the insertion of the pin 43.
  • the first pin 42 has a diameter greater than the diameter of the second pin 43 and is crossed by a radial bore allowing the insertion of said pin 43.
  • the skirt 44 is also crossed radially by a bore 49 ' allowing the insertion of the pin 43.
  • the length of the pin 42 is substantially equal to the diameter of the core 41 and the length of the pin 43 is substantially equal to the external diameter of the skirt 44.
  • the pin 42 is introduced into the bore 48 of the core 41 being oriented in such a way that its radial bore is in the axis of the bore 49 of said core 41.
  • the shaft 34 is introduced by its second end into the skirt 44 so to bring it around the core 41 until its fallen edge 47 is in support against the flat face 46 of said core 41.
  • the skirt 44 is positioned in such a way that its radial bore 49 'is in the extension of the bore 49 of the core 41 and the pin 43 is introduced into the bore passing through the skirt 44, the core 41 and the pierced pin 42.
  • Such an assembly allows a ball joint movement between the shaft 34 and the skirt 44 which avoids the wear which could be generated by misalignments between these rooms.
  • the knife-grid sub-assembly 300 shown in FIGS. 3 and 4 comprises another rotation bearing 38 constituted by a flat washer arranged on the edge fallen 47 from skirt 44, grid 30, a second rotation pad 36 and knife 31.
  • the second rotation bearing 36 is arranged in a countersink 37 produced in the underside of the grid 30.
  • the axial dimensions of said rotation bearing 36 and said counterbore 37 are controlled so as to obtain that the free surface of the pad is parallel to the plane of the free surface of the grid 30 and disposed at a distance between 2 and 6 hundredths of a millimeter thereof.
  • a series of thickness rotation bearings is provided different and the depth of the counterbore 37 is measured in order to choose the bearing of suitable thickness.
  • the positioning of the second rotation bearing 36 in the counterbore 37 of the grid prevents impurities from slipping between the base of the knife 31 and the grid 30.
  • the knife 31 has a hub 310 through which a bore 311 allows its positioning on the shaft 34 and an oblong orifice 312 in which a pin 35 ensuring the rotational connection of the knife 31 on the shaft 34, and two blades 313 ensuring the cutting of the materials sucked through the orifices of the grid.
  • the blades 313 are parallel to each other and arranged on either side of a diametral plane, parallel to said diametral plane.
  • a clamping nut 50 completes the assembly of the knife-grid sub-assembly 300 according to the invention by being screwed onto the second end of the shaft 34, threaded to this effect.
  • the clamping nut 50 is introduced into a cup 314 machined in the hub 310 of the knife.
  • the assembly of the sub-assembly 300 is produced and completed by the installation of the nut 50 which tightens the elements against each other in order to arrange them properly by compared to others.
  • the nut 50 is screwed until a torque of rotation of the knife is obtained predetermined then blocked by a spun brake system, which allows to obtain a assembly by which the problems of adjustment due to variations in dimensions of the components are eliminated different parts of the assembly, shaft 34, device 39, rotation bearings 36 and 38, grid 30 and knife 31.
  • this embodiment has the defect to make the clearance between the base of the knife and the grid depend on the depth of the counterbore 37 and the thickness of the rotation bearing 36.
  • the grid-knife sub-assembly 301 includes, like the knife-grid subassembly 300 of FIGS. 3 and 4, a shaft 34 carrying a device 39 allowing a correction of the perpendicularity defects between the shaft and the grid 30, a rotation bearing 38, a grid 30, a bearing rotation 36 arranged in a counterbore 37 of the grid 30 and a knife 31.
  • the knife-grid sub-assembly 301 is mounted by means of two nuts 70 and 64 intended to be adjusted independently on the one hand, the stacking shaft 34, device 39, grid 30, rotation bearings 36 and 38, counterbore 37 and, on the other hand, the position of the base of the knife 31 relative to the surface of the grid 30.
  • a spacer 60 is added to the sub-assembly knife grid.
  • This spacer 60 is generally cylindrical, it ends in a flange 61 of larger diameter than the current diameter of said spacer 60, but equal to the diameter of the counterbore 37 of the grid 30.
  • the spacer 60 is positioned on the shaft 34 after the installation of the rotation bearing 36, then the first nut 70 is screwed onto the threaded end of said shaft 34 to clamp the various elements against each other in order to catch up with the axial games.
  • the nut 70 is introduced into the less in part in a bowl 71 formed in the end of the spacer 60.
  • the assembly continues with the installation of the pin 35 in the bore constituted by the bore 62 of the spacer and 63 of the shaft 34 and the positioning of the knife 31 with interposition of an O-ring 65.
  • the bore 63 of the shaft 34 is, as shown in thin dashed lines, of section S oblong so that the passage necessary for the installation of the pin 35 is kept despite the sliding of the spacer 60 on said shaft 34 during the take-up of axial clearances.
  • the knife 31 is fixed in position by tightening the second nut 64 which crushes the O-ring 65 until the clearance between the base of the knife 31 and the grid 30 or from 2 to 6 hundredths of a millimeter then blocking of said nut 64 with spun brake.
  • the internal bore of the knife 31 is diameter such that the spacer 60 can be positioned there.
  • the mounting and adjustment of axial clearance of the knife-grid subassembly 301 is achieved by means of two nuts 64 and 70 arranged on the same side of the grid 30, on the side of the knife.
  • the two nuts mounting and adjustment can be arranged on the same side of the grid 30, on the side opposite knife 31.
  • the knife-grid subassembly 302 according to the embodiment of the FIG. 6 comprises two nuts 170, 164 arranged on either side of said grid 30.
  • this shaft is intended to carry the knife 31, rotation pads 36 and 38 arranged on either side of the grid 30, an end piece 240 parallelepiped and a device 139 allowing a correction of the defects of perpendicularity between the shaft 134 and the grid 30.
  • the device 139 allowing a compensating for perpendicularity defects between the shaft 134 and the grid 30 is constituted by two washers 141, 142 respectively presenting a boss 143 and a cup 144 globally hemispherical.
  • the washer 142 is immobilized in rotation on the shaft 134 by setting place of a pin 146 in a bore 145 of the shaft and a bore 147 of said washer.
  • the assembly comprises, around the second part 136 of the shaft 134, a stack consisting of the rotation bearing 36, the grid 30, the rotation bearing 38, the washer 142 fixed by the pin 146, the washer 141 and the first clamping nut 170 by which the axial clearances between the different elements are caught up.
  • the bore 145 of the shaft is of oblong section in order to allow the axial displacement of the pin 146 during tightening.
  • the knife 31 is mounted around the fourth part 138 of the shaft 134 after the installation of the O-ring 65 and the pin 35 then fixed in position by the screwing the second nut 164 and fitting a spun brake.
  • the axis 15 of the pump 12 carries a turbine 23 turning in the pump bottom 20 in order to draw the flushing water and the materials present at the bottom of the tank 1 through the orifices 25 of said pump bottom.
  • the end of the pump axis 15 carries a parallelepiped end piece 16 intended to be inserted into an orifice 146 in the coupling part 14.
  • the coupling part 14 is preferably a plastic part providing a certain flexibility in the coupling between the axis 15 of the pump 12 and the shaft 34, 134 of the removable knife-grid subassembly according to the invention.
  • the knife-grate sub-assembly according to the invention is presented opposite the central orifice 26 said pump bottom 20, the shaft 34 is threaded into the central orifice 26 until the end piece 40, 240 is positioned in the opening 140 of the coupling part 14.
  • the grid 30 is then fixed to the bottom of the pump by the installation of fastening means 33.
  • a chimney 24 formed in the extension of the central orifice 26 extends to near the hub of the turbine 23.
  • This chimney 24 encloses the connection between axis 15 of the pump and 34 or 134 of the sub-assembly knife grid so as to avoid the effects of vortexing and rolling up of materials around these.
  • FIG. 7 An exemplary embodiment of the grid 30 used in the assembly according to the invention is shown in Figure 7.
  • the orifices 32 are produced in the form of coated diamonds circumferentially along the ring traversed by the blades 313 of the knife. This configuration has the advantage of admitting materials through a large part of the orifice and cut them under the action of the knife when they have reached the pointed end of the orifice 32, which facilitates cutting.
  • the grid 30 has positioning notches 320 adapted to cooperate with pins, not shown in the drawings, of the pump bottom 20 for position the grid 30 so that its holes 32 are opposite the holes 25 of said pump bottom.
  • the openings 333 are intended for the passage of the fixing means 33.
  • a coating 66 can be applied to the knife 31 so as to create an end face that does not have any irregularities and to avoid material windings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Surgical Instruments (AREA)
  • Non-Flushing Toilets (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP00402991A 1999-11-05 2000-10-27 Vorrichtung zum Verkleinern von Material, z.B. für Toilettenbecken Expired - Lifetime EP1098042B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9913861A FR2800764B1 (fr) 1999-11-05 1999-11-05 Dispositif de dilaceration de matieres, par exemple destine a equiper une cuvette de water-closet
FR9913861 1999-11-05

Publications (2)

Publication Number Publication Date
EP1098042A1 true EP1098042A1 (de) 2001-05-09
EP1098042B1 EP1098042B1 (de) 2005-02-02

Family

ID=9551745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00402991A Expired - Lifetime EP1098042B1 (de) 1999-11-05 2000-10-27 Vorrichtung zum Verkleinern von Material, z.B. für Toilettenbecken

Country Status (4)

Country Link
EP (1) EP1098042B1 (de)
AT (1) ATE288521T1 (de)
DE (1) DE60017853T2 (de)
FR (1) FR2800764B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1420119A1 (de) * 2002-11-15 2004-05-19 Central General Marcas S.L. Sanitäre Vorrichtung
FR3006721A1 (fr) * 2013-06-10 2014-12-12 Ksb Sas Pompe dileceratrice a moyens de reglage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2872065B1 (fr) * 2004-06-24 2006-09-08 Victor Jean Ballestra Sous-ensemble grille-couteau destine a equiper le fond de pompe d'un dispositif de dilaceration des matieres en provenance d'une cuvette de w-c
FR3088221B1 (fr) * 2018-11-13 2023-02-24 Victor Jean Ballestra Dispositif de dilaceration pour broyeur sanitaire

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1349257A (fr) * 1962-11-07 1964-01-17 Water-closet à pompe
US3878569A (en) * 1974-05-02 1975-04-22 Itt Sewage treatment device
GB1551919A (en) * 1977-02-09 1979-09-05 Chittenden J B Macerator and pump and macerator assembly
US4271540A (en) * 1979-04-26 1981-06-09 Clifton Ronald M Sewage system with comminutor
US4697746A (en) * 1984-08-17 1987-10-06 Ebara Corporation Grinder pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2032008A5 (de) 1969-02-14 1970-11-20 Lecat Roger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1349257A (fr) * 1962-11-07 1964-01-17 Water-closet à pompe
US3878569A (en) * 1974-05-02 1975-04-22 Itt Sewage treatment device
GB1551919A (en) * 1977-02-09 1979-09-05 Chittenden J B Macerator and pump and macerator assembly
US4271540A (en) * 1979-04-26 1981-06-09 Clifton Ronald M Sewage system with comminutor
US4697746A (en) * 1984-08-17 1987-10-06 Ebara Corporation Grinder pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1420119A1 (de) * 2002-11-15 2004-05-19 Central General Marcas S.L. Sanitäre Vorrichtung
ES2224821A1 (es) * 2002-11-15 2005-03-01 Central General Marcas, S.L. Dispositivo sanitario.
FR3006721A1 (fr) * 2013-06-10 2014-12-12 Ksb Sas Pompe dileceratrice a moyens de reglage
EP2813707A1 (de) * 2013-06-10 2014-12-17 Ksb S.A.S Zerkleinerungspumpe mit Reguliermitteln

Also Published As

Publication number Publication date
EP1098042B1 (de) 2005-02-02
FR2800764B1 (fr) 2002-03-15
DE60017853D1 (de) 2005-03-10
FR2800764A1 (fr) 2001-05-11
ATE288521T1 (de) 2005-02-15
DE60017853T2 (de) 2006-01-12

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