High-pressure cleaning machine with working mode switching function

Abstract

The present invention relates to the technical field of high-pressure cleaning equipment, and in particular to a high-pressure cleaning machine with a working mode switching function, comprising a main unit and a cleaning gun, wherein the water outlet of the main unit is connected to the water inlet of the cleaning gun through a water pipe, and a switching switch is provided on the cleaning gun for starting and stopping the high-pressure cleaning machine or switching the working mode of the high-pressure cleaning machine; the main unit comprises: a PCB board, when the user performs a preset gesture operation on the switching switch, the PCB board detects the current working condition of the high-pressure cleaning machine and forms a fluctuation signal; a booster pump, the booster pump is driven by a motor, and the PCB board switches the input voltage of the motor according to the fluctuation signal, thereby switching the working mode of the high-pressure cleaning machine. The beneficial effect is that the working mode of the high-pressure cleaning machine can be quickly switched by the switching switch on the cleaning gun, without the need to set a remote control on the cleaning gun, and without the need for the user to move to the main unit to adjust the working mode, thereby improving the convenience of use.

Description

Technical Field

[0001] The present invention relates to the technical field of high-pressure cleaning equipment, and in particular to a high-pressure cleaning machine with a working mode switching function. Background Art

[0002] A high-pressure cleaner is a cleaning device that uses high-pressure water jets to wash the surface of an object. It can remove dirt and wash away dirt to achieve the purpose of cleaning the surface of the object. High-pressure cleaning is also recognized by the world as one of the most scientific, economical and environmentally friendly cleaning methods. Its advantages are low cost, high efficiency, no pollution to the environment, and no damage to the object being cleaned, so its application is becoming more and more extensive.

[0003] In order to make the high-pressure cleaner more widely applicable, it is often necessary to preset a variety of different working modes and switch the corresponding working modes according to the different objects being washed by the high-pressure cleaner. The high-pressure cleaner is mainly composed of a main unit and a cleaning gun. The cleaning gun is connected to the main unit through a water pipe, and the length of the water pipe can be set according to the needs of the user. In the prior art, a knob switch is usually set on the main unit. If the user wants to adjust the working mode of the high-pressure cleaner, he needs to go back to the main unit and manually adjust the knob switch to switch the working mode. This method requires the user to run back and forth, which is very inconvenient to use; or a remote control is installed on the cleaning gun to switch the working mode through the remote control, but the cost of installing the remote control is high, and the remote control is easily damaged. Therefore, there is an urgent need for a new type of high-pressure cleaner with a working mode switching function. Summary of the invention

[0004] In view of the above problems existing in the prior art, a high-pressure cleaning machine with a working mode switching function is now provided.

[0005] The specific technical solutions are as follows:

[0006] The present invention includes a high-pressure cleaning machine with a working mode switching function, including a main machine and a cleaning gun, wherein a water outlet of the main machine is connected to a water inlet of the cleaning gun through a water pipe, and a switching switch is provided on the cleaning gun for starting and stopping the high-pressure cleaning machine or switching the working mode of the high-pressure cleaning machine;

[0007] The host comprises:

[0008] a booster pump, the input end of the booster pump is connected to the output end of a motor, and the booster pump is driven by the motor;

[0009] A PCB board, wherein the output end of the PCB board is connected to the input end of the motor. When the user performs a preset gesture operation on the switching switch, the PCB board detects the current working condition of the high-pressure cleaning machine and forms a fluctuation signal. The PCB board switches the input voltage of the motor according to the fluctuation signal, thereby switching the working mode of the high-pressure cleaning machine.

[0010] Preferably, the PCB board comprises:

[0011] a detection module, used for detecting the working current of the motor or the water pressure in the host to form the fluctuation signal;

[0012] A storage module, used to store a preset judgment rule;

[0013] a control module, connected to the detection module and the storage module respectively, and used to judge the fluctuation signal in combination with the preset judgment rule, and if the fluctuation signal meets the preset judgment rule, the control module switches the input voltage of the motor;

[0014] A power module, the input end of the power module is connected to an external power source, and the output end of the power module is connected to the control module for providing voltage to the control module.

[0015] Preferably, the fluctuation signal includes a water pressure fluctuation signal or a current fluctuation signal.

[0016] Preferably, the preset gesture operation includes continuously starting and stopping the switching switch within a preset time.

[0017] Preferably, the preset time is 0.5S.

[0018] Preferably, the PCB board provides at least two input voltages to the motor.

[0019] Preferably, the switching switch is a trigger switch.

[0020] Preferably, the trigger switch is connected to the PCB board via a micro switch.

[0021] Preferably, at least two rolling wheels are provided at the bottom of the host.

[0022] A ring handle is arranged on the top of the main machine.

[0023] The beneficial effect of the technical solution of the present invention is that the working mode of the high-pressure cleaner can be quickly switched through the switching switch on the cleaning gun, without the need to set a remote control on the cleaning gun, and without the need for the user to move to the host to adjust the working mode, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The embodiments of the present invention will be described more fully with reference to the attached drawings, which are provided for illustration and description only and are not intended to limit the scope of the present invention.

[0025] Figure 1 A schematic structural diagram of a high-pressure cleaning machine according to an embodiment of the present invention;

[0026] Figure 2 Schematic diagram of the structure of a host according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0030] The embodiment of the present invention provides a high pressure cleaning machine with a working mode switching function, such as Figure 1 As shown, it includes a main unit 1 and a cleaning gun 2, the water outlet of the main unit 1 is connected to the water inlet of the cleaning gun 2 through a water pipe 3, and the cleaning gun 2 is provided with a switching switch 20 for starting and stopping the high-pressure cleaning machine or switching the working mode of the high-pressure cleaning machine;

[0031] like Figure 2 As shown, host 1 includes:

[0032] a booster pump 11, the input end of the booster pump 11 is connected to the output end of a motor 12, and the booster pump 11 is driven by the motor 12;

[0033] A PCB board 10, the output end of the PCB board 10 is connected to the input end of the motor 12. When the user performs a preset gesture operation on the switching switch 20, the PCB board 10 detects the current working condition of the high-pressure cleaning machine and forms a fluctuation signal. The PCB board 10 switches the input voltage of the motor 12 according to the fluctuation signal, thereby switching the working mode of the high-pressure cleaning machine.

[0034] Specifically, in the present embodiment, the switching switch 20 adopts a trigger switch, and the trigger switch 20 is arranged on the handle of the cleaning gun 2, and is used to control the nozzle of the cleaning gun 2. When the trigger switch 20 is turned on, the nozzle of the cleaning gun 2 is opened, the water pressure in the cleaning gun 2 is reduced, and the water pressure in the main unit 1 is also reduced accordingly. After the PCB board 10 detects the reduction in water pressure, it automatically provides a preset input voltage to the motor 12, so that the motor 12 drives the booster pump 11 to work; when the trigger switch 20 is turned off, the nozzle of the cleaning gun 2 is closed, and the booster pump 12 is still in working state at this time. The water pressure in the cleaning gun 2 increases instantly. After the PCB board 10 detects the increase in water pressure, it automatically cuts off the input voltage provided to the motor 12, so that the booster pump 11 stops working.

[0035] Specifically, in this embodiment, the preset gesture operation is: within a preset time, 0.5 seconds is used in this embodiment, that is, the start and stop switch 20 are completed once each within 0.5 seconds. When the trigger switch 20 of the cleaning gun 2 is quickly started and stopped, the PCB board 10 in the host 1 will detect the fluctuation information of the water pressure or the fluctuation signal of the current. The PCB board 10 processes the detected fluctuation signal and judges it in combination with a preset judgment rule. If the fluctuation signal meets the preset judgment rule, the PCB board 10 gives feedback and adjusts the input voltage of the motor 12, thereby changing the outlet water pressure of the booster pump 11, and realizing the rapid switching of the working mode of the high-pressure cleaning equipment.

[0036] Further, the fluctuation signal includes a water pressure fluctuation signal or a current fluctuation signal, and the PCB board 10 can switch the input voltage of the motor 12 by detecting the fluctuation of the water pressure in the host 1, or can switch the input voltage of the motor 12 by detecting the fluctuation of the working current of the motor 12. The preset judgment rule includes: within a preset time (0.5S), when the PCB board 10 detects twice in a row that the water pressure in the host 1 reaches a preset pressure value, the PCB board 10 automatically switches the input voltage of the motor 12; or, within a preset time (0.5S), when the PCB board 10 detects twice in a row that the working current of the motor 12 reaches a preset current value, the PCB board 10 automatically switches the input voltage of the motor 12. It should be noted that the PCB board 10 provides at least two input voltages to the motor 12, and each time a preset gesture operation is performed on the switch 20, the PCB board 10 automatically switches between the at least two input voltages.

[0037] In a preferred embodiment, Figure 2 As shown, the PCB board 10 includes:

[0038] A detection module 101, used to detect the working current of the motor 12 or the water pressure in the host 1 and form a fluctuation signal;

[0039] A storage module 102, used to store a preset judgment rule;

[0040] A control module 103, connected to the detection module 101 and the storage module 102, respectively, for judging the fluctuation signal in combination with a preset judgment rule. If the fluctuation signal meets the preset judgment rule, the control module 103 switches the working voltage of the motor 12;

[0041] A power module 104 , the input end of the power module 104 is connected to an external power source 15 , and the output end of the power module 104 is connected to the control module 103 for providing voltage to the control module 103 .

[0042] Specifically, in this embodiment, the PCB board 10 provides at least two input voltages to the motor 12, each input voltage corresponds to a working mode, and the working mode of the high-pressure cleaner is switched by changing the input voltage of the motor 12. In this embodiment, the external power supply 15 can use an AC power supply from a power grid, or a DC power supply provided by a backup battery.

[0043] In a preferred embodiment, the trigger switch is connected to the PCB board via a micro switch.

[0044] Specifically, a waterproof micro switch is used in this embodiment to prevent water in the cleaning gun from penetrating into the micro switch and causing a short circuit. When the user presses the trigger switch, an external mechanical force is generated. The transmission element (pin, button, lever, roller, etc.) of the micro switch applies the external mechanical force to the action reed. When the action reed is displaced to the critical point, an instantaneous action is generated, so that the moving contact at the end of the action reed is quickly connected or disconnected with the fixed contact. When the force on the transmission element is removed, the action reed generates a reverse action force. When the reverse stroke of the transmission element reaches the critical point of the action of the reed, the reverse action is completed instantly. The micro switch has the advantages of small contact spacing, short action stroke, small pressing force, and rapid switching.

[0045] In a preferred embodiment, Figure 1 As shown, at least two rolling wheels 13 are provided at the bottom of the host 1;

[0046] A ring handle 14 is provided on the top of the main unit 1 .

[0047] Specifically, since the host 1 is heavy, two rolling wheels 13 are provided at the bottom of the host 1 , and a ring handle 14 is provided at the top of the host 1 , so that the user can move the host 1 easily.

[0048] In a preferred embodiment, the high-pressure cleaning machine further includes a heater, which is arranged in the water pipe between the water inlet of the main machine and the water outlet of the main machine;

[0049] A filter is also provided in the water pipe between the water inlet of the main unit and the water outlet of the main unit;

[0050] A fan is also arranged in the host, and the input end of the fan is connected to the output end of the power module.

[0051] Specifically, the input ends of the heater and the fan are both connected to the power module, which provides the working voltage. The heater is used to provide water of a certain temperature to the cleaning gun according to the needs of the user to meet the cleaning needs of various different occasions. The filter is used to filter impurities in the water to prevent the impurities in the water from causing secondary pollution to the objects being cleaned. Since the working current of the motor of the high-pressure cleaning machine is large and the heat is serious, a fan is set in the main unit and a corresponding exhaust port is set on the outer casing of the main unit. When the boost pump is started, the fan is also started to dissipate the heat generated by the motor and extend the service life of the high-pressure cleaning machine.

[0052] Furthermore, in this embodiment, the fan can be an axial flow fan, and a frequency converter can be installed on the fan to adjust the working voltage and frequency of the fan. Since the heat generated by the motor is different due to different input voltages, the fan is provided with a corresponding working voltage according to the different input voltages of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the frequency converter also has protection functions, such as over-current, over-voltage, overload protection, etc.

[0053] The beneficial effect of the technical solution of the present invention is that the working mode of the high-pressure cleaning machine can be quickly switched through the switching switch on the cleaning gun, without the need to set a remote control on the cleaning gun, and without the need for the user to move to the host to adjust the working mode, thereby improving the convenience of use.

[0054] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-pressure cleaning machine with a working mode switching function, comprising a main unit and a cleaning gun, wherein the water outlet of the main unit is connected to the water inlet of the cleaning gun through a water pipe, characterized in that: The cleaning gun is provided with a switching switch for starting and stopping the high-pressure cleaning machine or switching the working mode of the high-pressure cleaning machine; The host comprises: a booster pump, the input end of the booster pump is connected to the output end of a motor, and the booster pump is driven by the motor; a PCB board, wherein the output end of the PCB board is connected to the input end of the motor, and when the user performs a preset gesture operation on the switch, the PCB board detects the current working condition of the high-pressure cleaning machine and forms a fluctuation signal, and the PCB board switches the input voltage of the motor according to the fluctuation signal, thereby switching the working mode of the high-pressure cleaning machine. The PCB board includes: a detection module for detecting the working current of the motor or the water pressure in the host and forming the fluctuation signal; A storage module, used to store a preset judgment rule; a control module, connected to the detection module and the storage module respectively, and used to judge the fluctuation signal in combination with the preset judgment rule, and if the fluctuation signal meets the preset judgment rule, the control module switches the input voltage of the motor; a power module, the input end of the power module is connected to an external power source, the output end of the power module is connected to the control module, and is used to provide voltage to the control module, The fluctuation signal includes a water pressure fluctuation signal, and the preset judgment rule includes: when the PCB board detects that the water pressure in the host reaches a preset pressure value twice in a preset time, the PCB board automatically switches the input voltage of the motor.

2. The high pressure cleaning machine according to claim 1, characterized in that: The preset gesture operation includes continuously starting and stopping the switch within a preset time.

3. The high pressure cleaning machine according to claim 2, characterized in that: The preset time is 0.5S.

4. The high pressure cleaning machine according to claim 1, characterized in that: The PCB board provides at least two input voltages to the motor.

5. The high pressure cleaning machine according to claim 1, characterized in that: The switching switch is a trigger switch.

6. The high pressure cleaning machine according to claim 5, characterized in that: The trigger switch is connected to the PCB board via a micro switch.

7. The high pressure cleaning machine according to claim 1, characterized in that: At least two rolling wheels are arranged at the bottom of the main machine.

8. The high pressure cleaning machine according to claim 1, characterized in that: A ring handle is arranged on the top of the main machine.

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