CN116209529A - Dual-functional high-pressure water jet cleaner - Google Patents

Abstract

A high pressure water jet cleaner (1) comprising: a housing (10); a first pump (25) associated with the housing (10) provided with a suction conduit (30) and a delivery conduit (35) suitable for being connected to a water network; a dispensing gun (45) provided with a dispensing nozzle (65) and fluidly connected to the delivery conduit (35) of the first pump (25); -a second pump (110) associated with the housing (10) provided with a suction duct (120) and a delivery duct (125), the suction duct (120) being in direct fluid communication with a tank (80) adapted to contain a liquid and being independent of the suction duct (30) of the first pump (25), the delivery duct (125) being independent of the delivery duct (35) of the first pump (25); and a spray gun (140) provided with a nozzle and fluidly connected to the delivery conduit of the second pump.

Description

Dual-functional high-pressure water jet cleaner

Technical Field

The present invention relates to a high pressure water jet cleaner, i.e. a high pressure cleaning device, for cleaning a surface by generating a liquid jet under pressure.

Background

As is well known, high pressure cleaning devices or high pressure water jet cleaners generally comprise a pump to which an electric motor is mechanically connected for supplying the pump with the mechanical energy required to pressurize a fluid such as water and delivering it to a delivery conduit.

The pressurized fluid is typically used to remove dirt from a surface and/or to rinse after washing with a cleaning and/or sanitizing liquid.

In particular, in order to clean surfaces with cleaning and/or sanitizing liquids, sprayers, also known as atomizers, can be used which use a pump or compressor connected to a suitable nozzle to spray the cleaning and/or sanitizing liquid from the tank in order to deposit the droplets uniformly on the surface to be treated.

Typically, after allowing the cleaning/sanitizing liquid to act for a sufficient time, the cleaning/sanitizing liquid must be removed, for example, by rinsing with a high pressure water jet cleaner, to ensure that no liquid marks remain on the surface.

One disadvantage encountered by the operator responsible for cleaning is that he/she must carry a high pressure water jet cleaner and a sprayer/atomizer. The advantage is that the device does not have to be connected to/disconnected from the network each time.

The object of the present invention is to solve the drawbacks of the prior art, all within the framework of an efficient, rational and robust constructional solution.

This object is achieved by the features of the invention as reported in the independent claims. The dependent claims outline preferred and/or particularly advantageous aspects of the invention.

Disclosure of Invention

In particular, the present invention provides a high pressure water jet cleaner comprising: a housing; a first pump associated with the housing, provided with a suction duct and a delivery duct, the suction duct being adapted to be connected to a water network; a dispensing gun provided with a dispensing nozzle and fluidly connected to a delivery conduit of the first pump; a second pump associated with the housing, provided with a suction duct in direct fluid communication with the tank adapted to contain the liquid and independent of the suction duct of the first pump, and a delivery duct independent of the delivery duct of the first pump; a spray gun provided with a nozzle and fluidly connected to the delivery conduit of the second pump.

Thanks to this solution, the user can develop the washing operation quickly and easily, since he/she always has the appropriate tool on hand, carrying only one single tool, i.e. a single high-pressure water jet cleaner, and thus without having to connect or disconnect the different machines to/from the water network and/or the electric grid.

According to one aspect of the invention, a high pressure water jet cleaner may include a first electric motor mechanically coupled to a first pump to activate the first pump, a second electric motor mechanically coupled to a second pump to activate the second pump, and a power supply configured to selectively couple the first electric motor or the second electric motor to a source of electrical energy. Thus, it is particularly quick and convenient to select the function of the high pressure water jet cleaner to be used between the classical water jet cleaner functions of dispensing pressurized liquid (water) and spraying cleaning and/or sanitizing liquid. Furthermore, this allows rationalization of the motor size, since only one motor is allowed to be turned on at a time.

According to another aspect of the invention, the second pump may be configured to produce a maximum flow rate of between 0.1L/min and 0.3L/min and a maximum pressure of between 2 bar and 6 bar.

Thus, the liquid in the spray tank is optimal.

According to yet another aspect of the invention, the second pump may be a vibratory pump.

Thus, the high pressure water jet cleaner has a high service life, since the vibration pump requires few washers, e.g. only one washer, at its moving pumping member and the pressure generated by the vibration pump is low, so that the members subjected to the stress of corrosive liquids such as cleaning and disinfecting agents are few and the stress is relatively small and their possible replacement is quick and easy. In detail, the components in contact with the fluid (i.e. the surfaces defining the fluid channel sections) are defined by a stainless steel body, except for the surfaces defined by the gaskets.

Another advantage of the vibration pump is that the second motor may be an integral part of the vibration pump, which helps to make the high pressure water jet cleaner more compact.

In more detail, the second motor may comprise a solenoid adapted to move the ferromagnetic material core along the oscillation axis, and the second pump comprises a pumping member slidably inserted into the pumping chamber and integrally slid to the ferromagnetic material core along the oscillation axis.

The invention may provide that a tank of the disinfecting and/or cleaning liquid may be associated with the housing.

This makes the high-pressure water jet cleaner particularly easy to handle, since the tank of liquid to be sprayed can also be transported by acting on the housing of the high-pressure water jet cleaner (e.g. by gripping the handle).

Another aspect of the invention provides that the canister may be removably associated with the housing.

Thus, the canister can be easily transported with the housing of the high pressure water jet cleaner and at the same time cleaning and/or refilling of the canister is made easier by the fact that the canister can be detached from the housing.

Furthermore, this feature allows for quick and easy replacement and cleaning of the canister, even temporarily with a larger canister. In particular, the latter feature benefits from the fact that the conduit connecting the suction conduit of the second pump with the tank can be removably associated with the tank, so that the conduit can be detached from the tank and inserted into another tank, for example a tank having a larger capacity.

In yet another aspect of the invention, the housing may include a horizontal linear guide adapted to guide the tank.

This feature makes it easier and faster to remove the can from the housing, furthermore, the solution is particularly robust, since the fixing of the guiding can reduces the possibility of damaging the can due to incorrect positioning when inserting the can into the receiving seat of the can.

To further enhance the operational convenience of the high pressure water jet cleaner, the high pressure water jet cleaner may include, i.e., a housing associated with the first pump and the second pump, a first support adapted to hold the dispensing gun, and a second support adapted to hold the spray gun.

Drawings

Other characteristics and advantages of the invention will become more apparent upon reading the following description, provided by way of non-limiting example, with the aid of the accompanying drawings.

Fig. 1 is a front view of a high pressure water jet cleaner according to the present invention.

Fig. 2 is a side view of the high pressure water jet cleaner of fig. 1.

Fig. 3 is a rear view of the high pressure water jet cleaner of the previous figures.

Fig. 4 is a rear view of a high pressure water jet cleaner with a canister adapted to contain cleaning and/or sanitizing liquids removed.

Fig. 5 is a schematic partial illustration of a high pressure water jet cleaner according to the present invention.

Fig. 6 is a cross-sectional view of a high pressure water jet cleaner vibration pump.

Detailed Description

With particular reference to these figures, a high pressure water jet cleaner (i.e., a high pressure washing apparatus) is indicated generally at 1.

The high-pressure water jet cleaner 1 comprises a housing 10, for example made of plastic material, the housing 10 preferably being provided with a handle 15, preferably made on top of the housing, for gripping the high-pressure water jet cleaner by a user.

The housing 10 is rigid, i.e. does not deform under normal forces acting on it while using a high pressure water jet cleaner. In practice, the plastic material used and the thickness of the housing are such that the housing is substantially rigid.

In order to operate the high pressure water jet cleaner, the high pressure water jet cleaner may include, in addition to the handle, a pair of floor contact wheels 20 rotatably associated with the housing, such as positioned outside the housing.

Referring particularly to fig. 5, the high pressure water jet cleaner includes a first pump 25 associated with, i.e., secured to, the housing 10 and preferably contained (e.g., fully contained) within the housing 10, i.e., within the interior cavity of the housing.

The first pump 25 is provided with a suction conduit 30 and a delivery conduit 35, the suction conduit being adapted to be connected to a source of fluid to be pressurized, such as a water supply network.

The first pump 25 is preferably configured to generate a maximum pressure of more than 60 bar.

The first pump 25 may be one of an axial piston tilt plate pump, a reciprocating pump, or a piston pump with an eccentric shaft.

The high pressure water jet cleaner may include an inlet coupling fitting 40 (see fig. 1) rigidly associated with the housing 10, accessible from the outside and fluidly connected to the suction conduit 30 of the first pump 25. Basically, the inlet coupling fitting 40 is connected to the suction duct 30 by a tube (not shown and located within the housing) and is adapted to be connected to a fluid source to be pressurized by a tube provided with a coupling fitting complementary to the inlet coupling fitting 40.

As known to the person skilled in the art, the inlet coupling fitting is for example of the quick connect-disconnect type and will therefore not be described further.

The high pressure water jet cleaner 1 comprises a dispensing gun 45 fluidly connected to the delivery conduit 35 of the first pump, e.g. (directly) via a flexible tube 50. In the illustrated embodiment, the high pressure water jet cleaner includes a flexible tube 50 spooling mechanism provided with a roller 55 rotatably associated with the housing 10, for example at the handle 15.

The dispensing gun 45 includes a body provided with a handpiece and a dispensing gun 60, for example, removably associated with the handpiece. The lance is provided at one free end thereof with a dispensing nozzle 65. The dispensing gun may be associated with any other cleaning tool (e.g., a rotating brush) as an alternative to the spray gun.

It must be noted that a dispensing nozzle refers to a nozzle that is configured to withstand the pressure generated by the first pump and is also configured to produce a compact, substantially linear liquid jet. Dispensing nozzles typically have such a mechanism: is configured to change the shape of the jet between rectangular and fan-shaped, for example, by moving a pair of opposing walls of the mechanism toward and away from each other.

The dispensing gun 45 may include a trigger 70 movable between a first position in which the dispensing gun does not dispense pressurized fluid (e.g., via a spray gun) and a second position in which the dispensing gun dispenses pressurized fluid (e.g., via a spray gun). In particular, the trigger 70 is located at the handpiece and actuates the tap between a first position, in which the tap allows pressurized fluid to flow from the delivery conduit 35 to the dispensing nozzle 65, and a second position, in which the tap stops pressurized fluid from flowing from the delivery conduit 35 to the dispensing nozzle 65.

The dispensing nozzle 65, and thus the dispensing gun 45, is in fluid communication with only the delivery conduit 35 of the first pump. The delivery conduit 35 is in turn connected at the outlet only to the dispensing nozzle 65 and thus to the dispensing nozzle 45. In fact, the fluid pressurized by the first pump is dispensed only via the dispensing nozzle 65 (through the dispensing gun).

Referring specifically to the diagram in fig. 5, the high pressure water jet cleaner 1 includes a first electric motor 75 configured to activate the first pump 25. That is, the first electric motor 75 is mechanically connected to the first pump 25 to activate it, thereby pressurizing the fluid from the suction conduit. The first electric motor 75 and the first pump 25 together form a first motor pump of the high pressure water jet cleaner.

The first electric motor may, for example, be only turned on or off, and when turned on, it activates the first pump at a preset activation speed to pressurize the fluid.

The first electric motor 75 is adapted to be electrically connected to an electrical energy source E. The source of electrical energy E may be an electrical connection cable adapted to be connected to an electrical grid and/or a battery.

In particular, the first electric motor 75 may be actuated only between a first state in which it is switched on, i.e. in which it is powered by the source of electrical energy, and a second state in which it is switched off, i.e. in which it is not powered by the source of electrical energy and in which no current flows.

The high pressure water jet cleaner comprises a tank 80 adapted to hold a liquid, in particular a cleaning and/or sanitizing liquid. The tank 80 is preferably made of a polymeric material at least in the portion in contact with the liquid. In the illustrated embodiment, the canister 80 is made entirely of a polymeric material.

The canister 80 includes a fill opening formed in an upper portion thereof, i.e., a top portion thereof, and a lid 90 for closing the fill opening and removably associated with the canister.

The canister 80 is associated with the housing 10, for example, and is preferably removably secured to the housing 10.

For example, the housing may include a recess 95 adapted to at least partially receive the canister 80 (see fig. 4, where the canister is removed from the housing) in order to increase the overall compactness of the cleaner.

In particular, the can comprises a portion adapted to be inserted into the recess and dimensioned such that it is plastically deformed (or such that it is deformed) during insertion, so as to achieve a non-permanent interference connection with the housing. For example, the recess has a form converging towards a bottom wall 100 of the recess itself, which bottom wall preferably lies in a vertical plane, in order to achieve said interference connection.

The housing may include a guide configured to guide the securement of the canister 80 to the housing, such as guiding the canister into the recess 95.

Preferably, the guide defines a substantially horizontal sliding axis, i.e. it guides the insertion of the can into the recess 95 along the horizontal sliding axis. However, it is not excluded that in alternative embodiments not shown, the guide may define a substantially vertical sliding axis, and the recess may be shaped to accommodate the canister in a vertical insertion and extraction direction.

In the embodiment shown, the guide comprises at least one linear relief 105, preferably a pair of linear reliefs 105, formed on the mutually opposite walls of the recess and protruding from the surface of the recess 95 transversely to the bottom wall in a direction approaching the centre of the recess. In detail, the embossments 105, i.e. the pair of embossments 105, extend along a substantially horizontal longitudinal axis.

In the embodiment shown, the guides are converging, i.e. the longitudinal axis of the embossments 105 is converging, in particular towards the bottom wall 100.

The guide further comprises a groove formed in the can and shaped to at least partially receive the embossment such that the guide slides over the embossment. For example, the guide includes a pair of grooves formed on opposing walls of the can and positioned and shaped to slide over the embossments 105.

The high-pressure water jet cleaner 1 comprises a second pump 110, the second pump 110 being associated with the housing 10, for example fixed without residual degrees of freedom.

In the illustrated embodiment, the second pump 110 is housed in a closed box-shaped case 115 that is rigidly fixed (e.g., screwed or hooked) to the housing 10 without residual degrees of freedom. However, in an embodiment not shown, the second pump 110 is contained in the same housing 10 in which the first pump 25 is contained.

The second pump 110 is provided with a suction conduit 120 which is in fluid communication with a tank 80, for example by means of a suction conduit 130, which tank is adapted to contain cleaning/sanitizing liquid and which is independent of, i.e. fluidly separate from, the suction conduit of the first pump. It is also apparent that the suction duct 120 is not in communication with the delivery duct of the first pump.

The second pump 110 also includes a discharge conduit 125 that is independent of the delivery conduit of the first pump.

The second pump is preferably configured to generate a maximum flow rate of between 0.1L/min and 0.3L/min and a maximum pressure of between 2 bar and 6 bar. In particular, the second pump shown is configured to produce a maximum flow rate of between 0.1L/min and 0.2L/min and a maximum pressure of between 2 bar and 4 bar.

For example, the second pump 110 is a vibration pump.

Such a vibration pump 110 is thus started by a second motor, which is an integral part of the vibration pump itself.

In particular, the second pump comprises a box-shaped casing 170, for example made of steel, provided with a pumping chamber 175 defined in the cylindrical member, in fluid communication with the delivery duct 125 through the insertion of the unidirectional delivery valve 180 and the suction duct 120.

In the pumping chamber 175, a pumping member is slidably inserted along the sliding axis X, which also acts as a one-way suction valve when selectively placing the pumping chamber 175 in communication with the suction conduit.

In particular, the pumping member comprises a piston 185 slidably inserted into the cylinder along the sliding axis X and provided with an axial cavity 186 extending through the piston from one axial end to the other axial end along the direction of the sliding axis X, so as to place the suction duct 120 in fluid communication with the pumping chamber 175.

The pumping member further comprises a ball 190 at the axial cavity 186, pushed by a resilient element 195 into a sealing seat for the ball itself, made at the axial end of the piston 185 remote from the suction duct. The resilient element pushes the ball 190 (e.g., in a direction away from the delivery valve) toward the receiving seat to block the axial cavity of the piston, thereby acting as a suction valve.

The pump comprises an annular gasket 200, for example, housed in a housing groove made in a cylindrical member in which the piston slides, which is attached to the housing of the piston (i.e., the cylindrical side surface of the piston).

The annular gasket 200 serves as a hydrodynamic seal between the pumping chamber 175 and the suction conduit 120.

The gasket is preferably made of a polymeric material.

Furthermore, this gasket is the only pump gasket in contact with the fluid to be pumped and the moving body (piston).

As the piston 185 moves along the sliding axis X toward the delivery conduit, the ball is pressed into its receiving seat and closes the axial cavity 186, and fluid is pushed by the piston and ball assembly toward the one-way delivery valve, so the one-way delivery valve opens, allowing fluid to flow toward the delivery conduit.

When the piston 185 moves along the sliding axis X towards the delivery catheter, the elastic element is configured in such a way that: such that the bulb itself is spaced from its receiving seat in the piston, allowing fluid from the suction conduit to enter the pumping chamber through the axial cavity of the piston.

In the case of the vibration pump described herein, the second motor is contained in a box-shaped housing 170 that includes a pumping chamber 175.

In particular, the second motor comprises a solenoid 205 capable of moving a core 210 of ferromagnetic material along an oscillation axis coaxial with the sliding axis X. The solenoid is energized in an alternating manner to generate a variable magnetic field to alternately move the core along the sliding axis between two end-of-travel positions.

The core 210 has an axial cavity passing through it from one end to the other in the direction of the sliding axis X and which is in fluid communication with the axial cavity of the piston, i.e. which is an extension of the axial cavity of the piston in the core.

The core 210 is, for example, rigidly integral with the piston 185 and is housed in a chamber 215 (i.e., a cylindrical member having a pumping chamber defined therein) interposed between the suction conduit 120 and the pumping chamber 175. In detail, the sealing gasket 200 is interposed between the chamber 215 and the pumping chamber.

The second motor comprises a first spring 220 and a second spring 225 housed in a chamber 215 and acting on the core 210 itself from opposite axial ends thereof, each spring generating a force in the direction of the oscillation axis, respectively, opposite to the force generated by the other spring.

In the illustrated embodiment, downstream of the delivery conduit 125, the high pressure water jet cleaner includes a bypass valve (not shown) in fluid communication with the delivery conduit 125 and the tank 80 via a bypass conduit 135, the bypass valve being associated with a pressure gauge (not shown) capable of measuring the pressure in the delivery conduit and controlling the bypass valve in accordance with the pressure. In particular, the bypass valve is configured to actuate between a first position in which the bypass valve does not act on fluid downstream of the delivery conduit 125 and a second position in which the bypass valve diverts the output flow from the delivery conduit to the tank 80 via the bypass conduit 135.

When the pressure gauge detects a pressure above a preset threshold, the bypass valve switches from the first position to the second position. The pressure gauge may be electronic or mechano-hydraulic.

The high pressure water jet cleaner 1 comprises a spray gun 140, for example, fluidly connected to the delivery conduit 125 of the second pump (directly) by a flexible tube 145.

The spray gun 140 includes a body provided with a handpiece and a spray gun 150, for example, removably associated with the handpiece.

The lance is provided with a nozzle 155 at one free end thereof.

It must be specified that the nozzle is a nozzle configured to produce a conical or possibly spiral fluid jet (emanating from the outlet opening in a direction moving away from the nozzle). Typically, such nozzles include a plurality of liquid guiding surfaces therein from the second pump, the liquid guiding surfaces being configured to guide the fluid in a direction inclined relative to the central axis of the nozzle outlet orifice.

The spray gun 140 may include a trigger 160 movable between a first position in which the spray gun does not spray fluid pressurized by the second pump (e.g., via the spray gun 150) and a second position in which the spray gun sprays fluid pressurized by the second pump. In particular, the trigger 160 is located at the handpiece and actuates the faucet between a first position, in which it allows pressurized fluid to flow from the delivery conduit 125 to the nozzle 155, and a second position, in which it stops pressurized fluid from flowing from the delivery conduit 125 to the nozzle 155.

The nozzle 155 and thus the spray gun 140 is in fluid communication with the delivery conduit 125 of the second pump only. Thus, it is not in fluid communication with the delivery conduit of the first pump. Similarly, the delivery nozzle is not in fluid communication with the delivery conduit of the second pump. In practice, the fluid pressurized by the second pump is injected only via the nozzle 155 (through the spray gun).

In the embodiment shown, the second pump is of the vibrating type and has a second motor therein as a constituent thereof, however, it is not excluded that in an embodiment not shown, the second pump may be of a different type, provided that it is configured to produce a maximum flow rate of between 0.1L/min and 0.3L/min and a maximum pressure of between 2 bar and 6 bar. In this case, the high-pressure water jet cleaner 1 may include a second electric motor configured to start the second pump. That is, the second electric motor is mechanically connected to the second pump to activate the second pump in such a way as to pressurize fluid from tank 80.

The high pressure water jet cleaner includes, for example, a manual power supply configured to selectively connect the first electric motor or the second electric motor to a source of electrical energy.

In particular, the power supply device may be actuated in three positions: a first position in which both the first electric motor and the second electric motor are turned off, a second position in which only the first electric motor is turned on and the second electric motor 60 is turned off, and a third position in which the first electric motor is turned off and only the second electric motor is turned on.

For example, the power supply device can only be actuated in said three positions.

It should be noted that "manual" means that it can be actuated manually, preferably only by an operator.

The first electric motor and the second electric motor are electrically connected to the source of electrical energy by insertion of the power supply device.

In the illustrated embodiment, the power supply device comprises a switch 230, i.e. consists of a switch 230 configured to be permanently positioned in the three positions described above. The switch 230 includes a selection body, such as a knob, that can be directly contacted by a user for selecting a position.

The high pressure water jet cleaner comprises a pressure limiting device (not shown) adapted to detect the pressure at the delivery conduit of the first pump and configured to interrupt the power supply of the first electric motor when it detects that the pressure in the delivery conduit and/or in the pipe connected to the dispensing gun is greater than a predetermined threshold.

For example, the voltage limiting device may comprise a switch placed on an electrical connection cable connecting the power supply device to the first electric motor.

Finally, the high pressure water jet cleaner may further comprise a first support 235 adapted to hold the dispensing spray gun and a second support 240 adapted to hold the spray gun, both of which are rigidly attached to the housing 10. For example, the housing itself makes available the first support and the second support, i.e. the first support and the second support are integral with the housing or a part thereof.

Each support comprises a flange projecting outwards from the outer surface of the housing, the flange originating from the housing, and a grip portion holding the respective gun, i.e. the spray gun, and associated with the end of the flange opposite to the end in contact with the outer surface of the housing.

In the embodiment shown, each gripping portion is shaped as a tubular portion, for example, oriented with the central axis transverse to the horizontal plane, into which the lance of the respective gun is inserted. For example, the inner surface of the tubular portion that contacts the gun is conical, with a cross-sectional area that gradually decreases from top to bottom.

The operation of the high pressure water jet cleaner according to the present invention is as follows.

When the user has to clean and/or disinfect the surface with a suitable product, he can operate the power supply and change it to a third position to activate the second pump and spray the liquid contained in the tank 80 through the spray gun.

After allowing the cleaning and/or sanitizing agent to act for a sufficient time, the user can set the power supply to the second position to activate the first pump and sweep the cleaning agent and soil with the pressurized fluid using the dispensing gun.

When there is no cleaning and/or sanitizing liquid anymore, it is sufficient to remove the cap 90 to refill the tank, and in case it is necessary to replace the cleaning and/or sanitizing liquid and to remove all the liquid already in the tank or to clean the tank, the tank can be removed from the housing, for example by pulling it horizontally out and removing the tubing connected (preferably by a removable connection) to the second pump.

When the job is complete, the user can place the guns in their respective supports 234, 240 and conveniently transport all of the items together, including the canister 80, for example by simply grasping the handle 15.

The invention thus conceived is susceptible of numerous modifications and variations, all of which fall within the scope of the inventive concept.

Furthermore, all the details may be replaced by other technically equivalent elements.

In practice, the materials used, as well as the contingent shapes and dimensions, may be any according to requirements without thereby departing from the scope of protection of the following claims.

Claims (10)

1. A high pressure water jet cleaner (1) comprising:

a housing (10);

a first pump (25) associated with the housing (10) provided with a suction duct (30) and a delivery duct (35), the suction duct (30) being adapted to be connected to a water network,

a dispensing gun (45) provided with a dispensing nozzle (65) and fluidly connected to the delivery conduit (35) of the first pump (25),

a second pump (110) associated with the housing (10) and provided with a suction duct (120) and a delivery duct (125), the suction duct (120) being in direct fluid communication with a tank (80) adapted to contain a liquid and being independent of the suction duct (30) of the first pump (25), the delivery duct (125) being independent of the delivery duct (35) of the first pump (25), and

a spray gun (140) provided with a nozzle and fluidly connected to the delivery conduit of the second pump.

2. The high pressure water jet cleaner (1) according to claim 1, comprising a first electric motor (75) mechanically connected to the first pump (25) for starting the first pump, a second electric motor (205, 210) mechanically connected to the second pump (110) for starting the second pump, and a power supply (230) configured to be selectively connected to the first electric motor (75) or to an electric energy source of the second electric motor (205, 210).

3. The high pressure water jet cleaner (1) according to any of the preceding claims, wherein the second pump (110) is configured to generate a maximum flow rate between 0.1L/min and 0.3L/min and a maximum pressure between 2 bar and 6 bar.

4. The high pressure water jet cleaner (1) according to any of the preceding claims, wherein the second pump (110) is a vibrating pump.

5. The high pressure water jet cleaner (1) according to claim 4, wherein the second electric motor is an integral part of the vibration pump.

6. The high pressure water jet cleaner (1) according to claim 5, wherein the second electric motor comprises a solenoid (205) adapted to move a core (210) made of ferromagnetic material along a swing axis, and the second pump comprises a pumping member (195, 200) slidably inserted into a pumping chamber (175) and integrally slid to the core made of ferromagnetic material along the swing axis.

7. The high pressure water jet cleaner (1) according to any one of the preceding claims, wherein the tank (80) is associated with the housing (10).

8. The high pressure water jet cleaner (1) according to claim 7, wherein the canister (80) is removably associated with the housing (10).

9. The high pressure water jet cleaner (1) according to claim 8, wherein the housing (10) comprises a horizontal linear guide (105) adapted to guide the tank (80).

10. The high pressure water jet cleaner (1) according to claim 1, wherein the tank (10) comprises a first support (235) adapted to hold the dispensing gun and a second support (240) adapted to hold the spray gun.

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