FR2508855A1 - VEHICLE FOR WASHING CONTAINERS, IN PARTICULAR CONTAINERS FOR THE MECHANIZED COLLECTION OF HOUSEHOLD GARBAGE - Google Patents

Abstract

The vehicle is of the type which comprises a water tank and washing heads which are supplied with pressurised washing liquid, in particular water. It comprises a washing box 3 having an opening 4 for the introduction of receptacles, a loading means 13 for introducing the receptacles inside the said box through the said opening, means for the leaktight closing of the said opening, and a plurality of washing heads (6, 8, 9, 10, 11) which are arranged in the said box, at least one of the said heads (6) being arranged so as to spray pressurised water inside the receptacle(s) introduced into the box and at least one of the other washing heads (8, 9, 10, 11) being arranged so as to spray pressurised water onto the outer walls of the said container(s).

Description

The present invention relates to a washing vehicle of

  containers, including containers for collection

mechanized household waste.

  At the moment, there is an important development

  both mechanized collection of household waste during which the containers, in the form of rolling bins are supported by means of frontal, ventral or lateral gripping mounted on the rear of a collection vehicle, lifted, and tilted in such a way as to dump their contents into the collection vehicle and then rested. Such containers or roll-containers exist in a number of standardized dimensions ranging from

  capacity of 110 liters with a capacity of 1300 liters.

  For reasons of appearance and hygiene it is necessary to ensure the maintenance of these containers Traditionally this interview was left to the initiative of the guardians of buildings and

  the washing was carried out using a jet of water.

  It has already been proposed for this maintenance a vehicle comprising washing heads supplied with washing liquid, especially water, under pressure, the vehicle comprising for this purpose a water reservoir and means for feeding said

heads in water under pressure.

  Such vehicles are not satisfactory because they

  only provide a summary and partial wash, usually

  inside, containers; they are also a source of nuisance due to numerous projections of washing water In addition these vehicles are of a large size often does not allow them to access certain urban areas.

  narrow or congested lanes of parked cars.

  The present invention proposes to provide a container washing vehicle avoiding the drawbacks of currently known vehicles, allowing a quick and complete washing of the containers while being of a simple and economical design allowing its use by a low qualified staff, not causing no nuisance during use and being also of reduced size Containers within the meaning of the invention means all containers likely to receive industrial waste, household or public, including collection containers mentioned above and the litter bins

placed in public places.

  The vehicle according to the invention is characterized by the fact that it comprises a washing box comprising an opening

  introduction of containers, loading means for introducing

  to draw the containers inside said box through said

  opening, means for sealing said opening

  preferably, means for immobilizing the containers on said loading means during the unloading and washing loading phases, and a plurality of washing heads disposed in said box, at least one of said heads being arranged projecting water under pressure into the container (s) introduced into the box and at least one of the other washing heads being arranged to project water under pressure onto the outer walls of the one or more containers.

  In a preferred embodiment in which the opening

  The loading means are at the rear of the vehicle, the loading means are constituted by a structure, preferably in the form of a bucket acting as a door for closing the opening.

  to introduce the containers into the box.

  Preferably this loading door is secured to two lateral arms pivoting under the action of a rotary jack mechanism, mounted at one end of said arms, said door being thus pivotable relative to the chassis of the vehicle between a low position in its bottom wall is substantially horizontal in the immediate vicinity of the ground and a

  position in which said door is applied correspondingly

  shape on the periphery of the loading opening of the

wash box.

  The contact face with the ground of the bottom of the door of

  loading is advantageously provided with support pads on the ground.

  In a preferred embodiment, the door of

  ment is articulated on the said arms in the vicinity of their

  Opposite to that related to the pivoting mechanism relative to the vehicle frame Elastic means are advantageously provided on said arms to allow a correct application of the underside of the loading door on the ground which

  the inequalities of the latter, these means being preferably

  resilient stops carried by an integral end piece of the door and surrounding a longitudinally disposed wedge

  on each of said arms, and widening towards the article

  culation of the loading door on said arms.

  The bottom wall of the hopper-shaped door advantageously comprises on its upper face guide rails in which the rollers of the containers,

  end stops being provided for a frontal support of the rollers

  when the desired position of the container on the wall of

  bottom of the loading door is obtained.

  Advantageously, four parallel rails are provided allowing the simultaneous reception of two containers on said

  dump-shaped door for loading and washing.

  Thus, thanks to the invention it is possible to simultaneously load and wash two identical or different containers,

  capacity for example of 120, 240 and 330 liters.

  For larger containers, such as 660, 750, 1100 and 1300 liters, one container at a time

is loaded and washed.

  To maintain the container or containers to be loaded on the dump-shaped door used as loading means, provision is made

  according to the invention two telescopic brackets, operable separately

  simultaneously or simultaneously comprising an amount substantially perpendicular to the bottom wall of the loading door having a movable slide under the action of an integrated cylinder and an upper cross member parallel to said bottom wall and provided with lower stops resilient to apply from the top to a container brought and positioned on the loading door when it is in the open position in the vicinity

of the ground.

  Naturally the two stems are operated if it is desired to load and wash simultaneously two containers, or a container of large capacity, only one of the gallows can be used in the case of loading and washing a

  only container of small capacity.

  To ensure a tight closure of the box during washing a peripheral seal is made on the periphery of the loading opening and the loading door

  locked on the box using a locking mechanism

  cylinder liner mounted on the outside of the box.

  According to a particularly advantageous characteristic of the invention making it possible to significantly reduce the dimensions of the wash water tank, a washing water recycling circuit is provided in the vehicle according to the invention.

  decanting and filtration means.

  Advantageously there is provided in this circuit one and preferably several successive settling tanks, cleaning traps being provided for the removal of accumulated debris in the or settling tanks.

  The water leaving the settling tank (s) is

  gumption taken up by a lifting pump and brought to a sepa-

  rateur for cleaning by water circulation and then for a self-cleaning filter allowing cleaning with air or water circulating countercurrent Separation and filtration residues are also brought into bins equipped with trap doors. access The water thus decanted and filtered is returned to the tank where it is taken to feed the washing heads by a pump, in particular a high-pressure piston pump This high-pressure piston pump, especially at a pressure of 50 bar , is driven from the power take-off of the vehicle by a conventional pulley and belt system, additional security may be provided in the form of a clutch permitting rotation of the pump only when the vehicle is stopped and

steady state.

  To ensure better washing inside and outside the containers, it is advantageous for some or all of the washing heads to have several jets and to be rotatable, the rotation of the heads being ensured by the pressure of the water or by a pneumatic motor actuated by a an air compressor unit driven by the vehicle power take-off, the latter comprising

a compressed air tank.

  The vehicle also includes a hydraulic control fluid reservoir for supplying an oil pump for driving the rotary control cylinders for pivoting

of the loading door.

  The washing can be carried out in cold water, preferably with the addition of detergent, bactericidal, deodorant and dye additives, or with hot water with or without additive. When hot water is to be used, a water heater is to be installed. heating, advantageously composed of a boiler and a

  exchanger, and a good thermal insulation.

  Other advantages and characteristics of the invention

  will be highlighted in the following description

  given by way of non-limiting example of an embodiment -5 with reference to the annexed drawing L in which

  FIG. 1 is a schematic side elevational view of

  left of the vehicle according to the invention illustrating the load-

  container 2, is a schematic side elevational view of

  than the right of the vehicle according to the invention, the load gate-

  3 is a schematic rear view illustrating details of the immobilization means of the containers on the loading door,

  FIG. 4 is a schematic side elevational view of

  than the enlarged loading door, and FIG. 5 is a circuit diagram of the

recycling of wash water.

  We now refer to the drawing which represents a schematic

  the vehicle according to the invention illustrating only the

  essential characteristics necessary to understand the invention.

  tion. The vehicle itself is a truck comprising a driving cabin 1 and a chassis 2 supporting the various elements

of the washing installation.

  In practice, we have been able to use a truck whose length is less than 6 meters and the overall width of about

2 meters.

  The truck has at its rear part a washing box 3 provided at its rear part with a loading opening 4

  whose circumference has a peripheral seal 5.

  FIG. 1 shows a container C in position

washing.

  Inside the box are arranged two rotary heads 6 for washing the inside of the containers, each of the heads 6, only one of which is visible in the drawing being mounted at the end of one of two parallel arms 7 fixed

  at the bottom of the box 3.

  In different points of the inner wall of the box

  Other rotating heads are mounted for the essential washing.

  the outer walls of the containers.

  There is thus an upper head 8, a front head 9,

  a lower head 10 and two lateral heads 11.

  Another head 12 is mounted on the loading door 6-

  13, which will be described in more detail below.

after.

  In the embodiment envisaged, the heads 6 comprise

  Each of them has four nozzles allowing four jets to be directed.

  The other heads 8 to 12 are of the two-nozzle type pro-

thus giving two washing jets.

  The rotation of the four-jet heads 6 is ensured by the pressure of the water; the rotation of the heads 8 to 12 with two jets is provided by a pneumatic motor supplied with compressed air from a compressed air reservoir 14, the compressed air being supplied to the reservoir 14 by a compressor unit driven by the intake of

force of the vehicle.

  The water required for washing is supplied to the heads from a reservoir 15 via a high pressure piston pump 16 (FIG. 5) driven by pulleys and belts.

  from the PTO of the vehicle.

  In the exemplary embodiment the water reservoir is a

  stainless steel tank with a capacity of 2,500 liters.

  As indicated above, the container or containers are introduced into the washing box 3 while being supported by

  the closing door 13 of this box.

  This door 13 has the shape of a bucket comprising a bottom wall 17, a wall 18 substantially perpendicular to

  the bottom wall and two side walls 19 of sensitive section-

triangular shape.

  The box-shaped door 13 is articulated at 20 to two lateral arms 21 pivotable by their opposite end about a horizontal axis 22 under the action of a mechanism

  with rotary jacks 23 preferably comprising two coupled jacks.

  The cylinders are driven by a powered oil pump

from an oil tank 24.

  On the underside of the bottom wall 17 are put

  in place pads 25 support the ground.

  To compensate for the unevenness of the floor and to allow in all circumstances a good application of the bottom wall of the door is provided a resilient stop mechanism that is best seen in Figure 4 This mechanism comprises resilient annular stops 26 carried by a piece 27 secured to the

  door 13 and surrounding a wedge 28 formed on each of the arms 21.

  On the upper face of the bottom wall 17 are made of guide rails 29 for the rollers of the containers of the stops 30 being provided for the front support of the rollers of the containers placed on the loading door in position

  as shown in the right part of Figure 1.

  To immobilize the container (s) on the door of

  loading is provided according to the invention two telescopic gantries

  spades 31 each having a vertical upright 32 and a neck

  smooth 33 actuated by an integrated jack, each gallows comprising

  an upper cross member 34 provided with lower stops elasto-

mother 35.

  As best seen in FIG. 1, once the container is brought into position in the guide rails 29 against the abutments 30 or the upper cross members 34 are lowered until the elastomeric stops 35 come into contact with the upper rim of the container tank, the lid

  in the open position.

  For containers of large widths both

  these 31 are operated simultaneously and they are also

  when it is desired to simultaneously load two containers of

  small width, each cross 34 thus ensuring the clamping

  at the top of one of the containers.

  To introduce the container (s) thus kept in the washing box, it is sufficient to actuate the rotary-cylinder mechanism (23) to bring the door against the loading opening (4), after which the door is locked on the box (1). using a jack mechanism 36 (FIG. 2) The rotary heads are then fed with water under pressure

  ensuring thorough washing inside and outside of the container (s)

  perfectly immobilized thanks to the 31 stems during

  washing phase Once the washing is done, it is enough to unlock

  ler the rear door and to actuate again the mechanism with cylinders 23 to bring the door in low position after which one frees the container or containers of the clamping brackets and they are

  clears rails by rolling them backwards.

  The operating commands for opening and closing the loading door as well as for clamping and unclamping the containers are advantageously located on a control panel arranged at the rear of the vehicle and operated by the service personnel. It also has an emergency stop button The other commands are made at 8-

from a desk in the cabin.

  We will now describe with particular reference to

  FIG. 5 shows a possible circuit for recycling the washing water. The water leaving the washing box 3 at its lower part

  in a first settling tank 36 o accumulates

  This bin has at its bottom a hatch 37 whose opening and closing are controlled by a mechanism 38 (Figure 2) actuated by jacks and ensuring an effect

  arcboutement in the closed position.

  Following the tray 36 and separated therefrom by a grid 39 is a second settling tank 40 for detritus of average size This tray 40 is separated by a grid 41 of a tray 42 forming a tank of water decanted A recovery pump 43 of this decanted dirty water is provided and is driven

by a pneumatic motor.

  The water having passed through this pump 43 reaches a

  separator 44 with centrifugal effect ensuring cleaning by circula-

  water, waste and circulating water arriving in a solid waste bin 45 provided with a cleaning hatch 46, the

  too full of water being brought back by a conduit 47 into the tank 42.

  The water coming out of the separator is brought to an automatic filter.

  cleaner 48 with compressed air circulating against

  waste arriving at a litter bin 49 equipped with a

cleaning hatch 50.

  Finally the water leaving the filter 48 is returned to the tank 15 after passing through a conventional safety filter, and the

  where appropriate, a heating installation (not shown)

  a boiler and an exchanger, tank 15 from which it feeds the washing heads with the high piston pump

  pressure 16 as described above.

  Although the invention has been described in connection with a particular embodiment it is obvious that it is numbly limited and that it can provide many variations and modifications without departing from its scope

neither of his mind.

-9

Claims (10)

RESELLS-I-CATIONS   Container washing vehicle, in particular containers for the mechanized collection of household refuse, of the type comprising a water tank and washing heads supplied with washing liquid, in particular water, under pressure, characterized in that it comprises a washing box comprising a container introduction opening, loading means for introducing the containers inside said box through said opening, means for sealing said opening, and a plurality of heads in at least one of said heads being arranged to project water under pressure into the container or containers introduced into the box and at least one of the other washing heads being arranged to project water under pressure on the outer walls of said container or containers. 2 Vehicle according to claim 1, characterized in that it comprises means for immobilizing the containers on the loading means during the loading phases,   unloading and washing containers.   Vehicle according to any one of claims 1   and 2, characterized in that the loading opening is situated at the rear of the vehicle, the loading means being constituted by a structure, preferably in the form of a bucket, serving as a closing door for the opening of the vehicle. 'introduction containers in the box.   4 Vehicle according to claim 3, characterized in that said door is secured to two pivoting side arms   under the action of a rotating-cylinder mechanism mounted at one end   of said arms, said door being capable of pivoting between   a low position in which its bottom wall is sensi-   horizontally in the immediate vicinity of the ground and a high position in which the said door applies in correspondence of shape around the periphery of the loading opening of the washing.   Vehicle according to claim 4, characterized in that said door is articulated on said arms in the vicinity   their end opposite to that related to the pivoting mechanism.   Vehicle according to Claim 5, characterized in that the said arms comprise elastic means for compensating the unevenness of the ground and allowing an application   correct of the underside of the door on the floor.   Vehicle according to claim 6, characterized in that said means are resilient abutments surrounding a wedge disposed longitudinally on each of said arms and extending in the direction of the hinge of the door on said arms.   Vehicle according to any one of claims 3   to 7, characterized in that the bottom wall of the door has on its upper face guide rails for the casters of the containers and end stops for a support front of said wheels.   Vehicle according to any of claims 2   at 8, characterized by the fact that it comprises two telescopic brackets   copics, operable simultaneously or separately, each comprising an amount substantially perpendicular to the bottom wall of the loading door comprising a movable slide under the action of an integrated jack and an upper crosspiece parallel to said bottom wall and provided with stops lower elastics may be applied from above to a container positioned on the loading door in the open position near the ground.   Vehicle according to any one of claims 3   to 9, characterized in that it comprises on the outer face of the box a locking mechanism of the loading door on the caisson.   Vehicle according to any one of the claims   preceding, characterized by the fact that it comprises a circuit of recycling of wash water.   12 Vehicle according to claim 11, characterized in that it comprises in said circuit means of decantation   and filtering the wash water.   Vehicle according to any one of the claims   characterized by the fact that it comprises means of heating the wash water.