An automatic cleaning apparatus

Abstract

This invention relates to the field of cleaning equipment technology, and in particular to an automatic cleaning device, comprising a water tank, a first return flow channel, and a bubble module. The water tank has a cleaning chamber connected to a flow chamber, and a water tank temperature sensor is installed in the flow chamber. The cleaning chamber is connected to a water inlet module. The first return flow channel connects the flow chamber and the cleaning chamber, and a heater is installed on the first return flow channel. The bubble module includes a bubble generator located in the first return flow channel and an air inlet module connected to the bubble generator. The bubble generator is located downstream of the heater. Water in the water tank can be returned to the water tank for recycling through the first return flow channel. During the return flow, the circulating water can be heated to a target water temperature by the heater to facilitate the regulation of the water temperature in the water tank, thereby improving the cleaning effect. At the same time, the heated water can be acted upon by the bubble generator to form bubble water, which can perform deep cleaning on the surface of the object being cleaned, further improving the cleaning effect.

Description

Technical Field

[0001] This invention relates to the technical field of cleaning equipment, and more particularly to an automatic cleaning device. Background Technology

[0002] Existing cleaning equipment (such as high-pressure washers, dishwashers, and parts cleaners) typically relies solely on liquid impact, rinsing, or chemical reagents for cleaning. However, for complex structural parts and items with stubborn stains or microscopic particles, relying on a single physical or chemical cleaning method results in blind spots and dead zones, leading to poor cleaning effectiveness and an inability to meet multiple functional requirements.

[0003] This invention was proposed in response to the shortcomings of existing technologies. Summary of the Invention

[0004] This invention addresses the problems of existing cleaning equipment, which typically relies on a single physical or chemical cleaning method, resulting in blind spots and dead angles, poor cleaning effect, and inability to meet multiple functional requirements. It proposes an automatic cleaning device.

[0005] The technical solution adopted by this invention to solve its technical problem is: An automatic cleaning device, comprising: A water tank has a cleaning chamber inside, which is connected to a flow chamber. A water tank temperature sensor is installed in the flow chamber, and a water inlet module is connected to the cleaning chamber. A first return flow channel is connected between the flow chamber and the cleaning chamber, and a heater is provided on the first return flow channel; The bubble module includes a bubble generator disposed in the first return flow channel, an air intake module connected to the bubble generator, and a hydraulic sensor connected to the first return flow channel. The bubble generator is located downstream of the heater, and the hydraulic sensor is connected to the downstream of the bubble generator. The heater, the bubble generator, and the hydraulic sensor are electrically connected.

[0006] As described above, in an automatic cleaning device, the air intake module includes an air duct connected to the bubble generator, a one-way valve disposed on the air duct, and an inflation device, wherein the one-way valve is located downstream of the inflation device.

[0007] As described above, in an automatic cleaning device, the bottom of the water tank is provided with a housing, the flow chamber is provided inside the housing, a filter screen is provided between the water tank and the housing, the cleaning chamber and the flow chamber are connected through filter holes on the filter screen, and the water tank temperature sensor is provided inside the housing and below the filter screen.

[0008] As described above, in an automatic cleaning device, the water inlet module includes a spray device located at the top of the cleaning chamber, at least one water supply channel connected to the spray device, and the first return channel is connected to the spray device.

[0009] As described above, in an automatic cleaning device, the first return flow channel is further connected to at least one water supply pipe. A control valve is provided at the intersection of the water supply pipe and the first return flow channel. The water supply pipe is connected to the cleaning chamber, and the outlet of the water supply pipe is located on the side wall or bottom of the water tank. A first booster pump is also provided in the first return flow channel, and the first booster pump is located upstream of the heater.

[0010] As described above, in an automatic cleaning device, the water supply channel includes a cold water input channel, a hot water input channel, and a confluence channel connected to the water inlet end of the spray device. The cold water input channel and the hot water input channel are respectively connected to the confluence channel. The cold water input channel and the hot water input channel are respectively provided with a first inlet valve and a second inlet valve. The confluence channel is provided with a flow meter, which adjusts the water flow at the first inlet valve and / or the second inlet valve.

[0011] The automatic cleaning device described above further includes a steam module, which includes a clean water input channel and a steam input channel connecting the clean water input channel and the cleaning chamber. A steam generator is provided between the clean water input channel and the steam input channel. A third water inlet valve is provided in the clean water input channel. An ozone generator is also provided on the top of the water tank, and the output port of the ozone generator is connected to the cleaning chamber.

[0012] As described above, in an automatic cleaning device, a second return channel is also connected to one side of the clean water input channel. The second return channel is connected to the cleaning chamber, and a second booster pump is provided in the second return channel.

[0013] The automatic cleaning device described above further includes an ultrasonic cleaning module disposed in the water tank and an electrolysis module disposed in the flow cavity. Multiple ultrasonic cleaning modules are provided and spaced apart at the bottom of the water tank. The flow cavity is located between each ultrasonic cleaning module, and the output end of any ultrasonic cleaning module can extend into the cleaning cavity. The electrolysis module includes an electrolysis element and a mounting bracket. The electrolysis element is assembled in the flow cavity through the mounting bracket.

[0014] The automatic cleaning device described above further includes a drainage module, which includes a drainage channel communicating with the flow chamber and a drainage pump disposed in the drainage channel.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. Water in the water tank can be recycled back into the water tank from the overflow chamber through the first return flow channel. During the return flow, the actual temperature of the circulating water can be detected by the water tank temperature sensor. If the actual temperature of the circulating water is lower than the target water temperature, the circulating water can be heated to the target water temperature by the heater to facilitate the adjustment of the water temperature in the water tank and thus improve the cleaning effect. At the same time, the heated water can be used by the bubble generator to form bubble water, which can perform deep cleaning on the surface of the cleaned object and further improve the cleaning effect. 2. By placing the bubble generator downstream of the heater, the cooling circulating water can be heated first, and then a large number of bubbles can be generated in the hot water through the bubble generator. The produced bubble water can be directly introduced into the cleaning chamber through the water inlet module. The method of heating first and then foaming improves the proportion and stability of microbubbles, optimizes the bubble generation effect, and makes the impact force of bubble water cleaning more uniform, avoiding damage to the surface of objects, while enhancing the cleaning effect. 3. By sequentially arranging the heater, bubble generator, and hydraulic sensor along the water flow direction of the first return channel, and electrically connecting the heater, bubble generator, and hydraulic sensor, the actual hydraulic value downstream of the bubble generator can be detected by the hydraulic sensor. If the actual hydraulic value reaches the preset value, the bubble generator and heater can be triggered to start. If the actual hydraulic value does not reach the preset value, the bubble generator and heater will not be triggered to start, so as to protect the heater and bubble generator and prevent the heater from dry burning.

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the cleaning equipment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the cleaning equipment of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the cleaning device of the present invention in longitudinal cross-sectional view. Figure 4 for Figure 3 Enlarged view of part A in the image. Detailed Implementation

[0018] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0020] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0021] This invention provides an automatic cleaning device, which may be a high-pressure washer, dishwasher, parts cleaning machine, ultrasonic cleaner, etc., and is not specifically limited thereto; for example... Figures 1 to 4As shown, the automatic cleaning device includes a water tank 1, a first return flow channel 3, and a bubble module 4. The water tank 1 contains a cleaning chamber 11, which is connected to a flow chamber 12. A water tank temperature sensor 13 is located within the flow chamber 12. A water inlet module 2 is connected to the cleaning chamber 11, and the water inlet module 2 is used to input a suitable cleaning liquid into the cleaning chamber 11. The first return flow channel 3 connects the flow chamber 12 and the cleaning chamber 11, and a heater 31 is installed on the first return flow channel 3. The bubble module 4 includes a bubble generator 41 located in the first return flow channel 3, an air inlet module 42 connected to the bubble generator 41, and a valve connected to the first return flow channel 3. The hydraulic sensor 43 is connected to the downstream side of the bubble generator 41, and the bubble generator 41 is located downstream of the heater 31. Water in the water tank 1 can be recycled from the flow chamber 12 through the first return flow channel 3. During the return flow, the actual temperature of the circulating water can be detected by the water tank temperature sensor 13. If the actual temperature of the circulating water is lower than the target water temperature, the heater 31 can heat the circulating water to the target water temperature to regulate the water temperature in the water tank 1, thereby improving the cleaning effect. Simultaneously, the heated water can be actuated by the bubble generator 41 to form bubble water, which can deeply clean the surface of the object being cleaned, facilitating further cleaning. To improve cleaning efficiency, if the actual temperature of the circulating water measured by the water tank temperature sensor 13 is equal to or greater than the target water temperature, the heater 31 may not operate. In this case, bubble water can be generated by the bubble generator 41. The target water temperature can be set by the user or preset by different working modes of the equipment; no specific limitation is made here. Secondly, by placing the bubble generator 41 downstream of the heater 31, the cooled circulating water can be heated first, and then a large number of bubbles can be generated in the hot water by the bubble generator 41. The generated bubble water can be directly introduced into the cleaning chamber 11 through the water inlet module 2. The method of heating first and then foaming improves the proportion and stability of microbubbles and optimizes the bubble generation effect. This design ensures more even impact force during bubble water cleaning, preventing damage to object surfaces and enhancing cleaning effectiveness. Furthermore, the heater 31, bubble generator 41, and hydraulic sensor 43 are sequentially arranged along the water flow direction of the first return channel 3, and are electrically connected. The hydraulic sensor 43 can detect the actual hydraulic pressure value downstream of the bubble generator 41. If the actual hydraulic pressure value reaches a preset value, the bubble generator 41 and heater 31 can be triggered to start; if the actual hydraulic pressure value does not reach the preset value, the bubble generator 41 and heater 31 will not be triggered to start, thus protecting the heater 31 and bubble generator 41 and preventing the heater 31 from dry burning.

[0022] Furthermore, the cleaning equipment in this embodiment of the invention includes a control module. The control module can be used to control the coordinated operation of the electrical components in the cleaning equipment, enabling the cleaning equipment to operate in different working modes and enhancing its functionality. The water tank temperature sensor 13, heater 31, bubble generator 41, and hydraulic sensor 43 are electrically connected to the control module. The control module is equipped with a circulating temperature control unit. The control module can first determine the operating status of the bubble module 4. The operating status of the bubble module 4 can be specifically characterized by whether the air intake module 42 or the bubble generator 41 is activated. The circulating temperature control unit is used to determine the operating status of the bubble module 4 when it is not activated, based on the temperature measured by the water tank temperature sensor 13. The deviation between the actual water temperature and the target water temperature is used to determine the basic temperature control power of the heater 31, thereby achieving temperature regulation of the circulating water. This allows the circulating water to be quickly heated to the target water temperature and directly returned to the cleaning chamber 11 for recycling, realizing secondary heating of the circulating water and thus regulating the cleaning water temperature to ensure the cleaning effect. It should be noted that when the bubble generator 41 is not inlet, the heat loss of the heated circulating water passing through the bubble generator 41 is minimal and negligible. Optionally, the circulating temperature control unit can be combined with a PID algorithm for basic temperature control calculation. In addition, the bubble generator 41 can be set as a Venturi jet or other bubble generator 41 in the prior art, without specific limitations here.

[0023] Figures 1 to 4 An optional embodiment of the air intake module 42 of this solution is shown. The air intake module 42 includes an air duct 421 connected to the bubble generator 41, a one-way valve disposed on the air duct 421, and an inflation device 422. The one-way valve is located downstream of the inflation device 422. The inflation device 422 is disposed on the top of the water tank 1 and can be electrically connected to a control module to control its operation. The inflation device 422 includes at least an air intake pump for air intake. The air intake pump can be a conventional air pump, an air intake pump integrated with an electrically controlled valve, or a separate electrically controlled valve. The valve operation is not specifically limited here; the suction pump is equipped with a suction port 423, which can be used to draw air from outside the equipment or to connect to air tanks inside the equipment. The suction port 423 is connected to the air passage 421, and the outlet of the air passage 421 is connected to the inside of the bubble generator 41. A one-way valve is located inside the air passage 421 and close to the outlet of the air passage 421. The one-way valve enables one-way air intake from outside the equipment to the bubble generator 41 through the air passage 421, while preventing liquid, gas or gas-liquid mixture inside the bubble generator 41 from flowing back into the air passage 421, thus ensuring the reliability of the air intake module 42 and the safety of the equipment.

[0024] The air intake module 42 of this embodiment can input external ambient air to the bubble generator 41. The external air may have different ambient temperatures. When the external air mixes with the circulating water, the circulating water will generate a first heat loss based on the mixing of external air. Secondly, when the bubble module 4 is working, the circulating water will generate a certain degree of evaporation and atomization through the bubble generator 41, which will generate a second heat loss based on the bubble preparation system. Due to the above-mentioned first heat loss and second heat loss, the temperature of the bubble water entering the actual cleaning chamber 11 will deviate from the target water temperature.

[0025] To avoid the aforementioned temperature drop problem of the bubble water, this invention also proposes an optional implementation of a cleaning device with bubble water temperature compensation function, further optimizing the heating and control of the circulating water.

[0026] Specifically, the control module is equipped with a temperature compensation unit, which includes a state estimation subunit and a compensation calculation subunit. The state estimation subunit is used to respond to the start signal of the bubble module 4 and calculate the total heat loss of the circulating water according to the target water temperature, ambient temperature and preset characteristic parameters of the bubble generator 41. The total heat loss includes a first heat loss and a second heat loss.

[0027] To accurately obtain the ambient temperature, the air intake module 42 also includes an ambient temperature sensor. The ambient temperature sensor is located at the air intake end of the air passage 421 or near the suction port 423. The ambient temperature sensor is used to detect the air temperature when air enters the air passage 421 and defines it as the ambient temperature.

[0028] In this embodiment of the invention, the state estimation subunit uses the following heat loss model to calculate the total heat loss: Total heat loss of bubble water = (target water temperature - ambient temperature) × air sensible heat compensation coefficient + latent heat of vaporization compensation coefficient; wherein, the air sensible heat compensation coefficient (unit: W / ℃) represents the ratio of the power required to heat the air entering the bubble generator 41 from the ambient temperature to the target water temperature to the temperature difference, which depends on the air flow rate, air specific heat capacity and gas-liquid heat exchange efficiency; the latent heat of vaporization compensation power (unit: W) represents the heat required for the state changes such as water evaporation and atomization in the bubble generator 41, which is a constant value under the condition of fixed air pump flow rate; it should be noted that both the air sensible heat compensation coefficient and the latent heat of vaporization compensation power can be obtained through experimental calibration.

[0029] The compensation calculation subunit directly uses the total heat loss as the compensation power and adds it to the basic temperature control power to determine the heating power required for the bubble water; wherein, the basic temperature control power is defined as the heating power required to maintain the water temperature in water tank 1 at the target value when no bubbles are generated.

[0030] Furthermore, in order to improve the response speed of the temperature compensation unit, the sampling period of the water tank temperature sensor is preferably set to 0.5 to 1.0 seconds; the sampling period of the ambient temperature sensor can be set to an integer multiple of the water tank sampling period, such as 5 to 10 seconds, so as to reduce the system bus load while ensuring the accuracy of the compensation power calculation.

[0031] As another optional embodiment of the bubble water temperature compensation in the cleaning equipment of the present invention, this embodiment differs from the above embodiment that directly compensates for temperature based on a heat loss model in that the state estimation subunit can also introduce a Kalman filter model to estimate the true water temperature and temperature change rate of the bubble water in advance. The Kalman filter can fuse the heat loss model with the hysteresis measurements of the water tank temperature sensor 13 and the ambient temperature sensor to estimate the most accurate transient water temperature. Specifically, the state estimation subunit can respond to the start signal of the bubble module 4 and predict the water temperature change of the bubble water using a Kalman filter based on the actual water temperature measured by the water tank temperature sensor 13 and the ambient temperature measured by the ambient temperature sensor.

[0032] Furthermore, when the cleaning equipment is running in cyclic temperature control mode, the Kalman filter and temperature compensation work together as follows: First, when the control module detects the start signal of bubble module 4, it substitutes this information as a known input into the state prediction model of the Kalman filter. This state prediction model is based on the heat balance equation, taking into account the heating power, environmental heat dissipation, and heat loss caused by the start of bubble module 4 (such as latent heat of vaporization, forced convection, etc.), to calculate the expected rate of temperature change in the current control cycle, and thus obtain the prior water temperature estimate; where the rate of temperature change caused by heat loss is negative.

[0033] Subsequently, the control module acquires temperature sensor readings (including water tank temperature sensor 13 and / or ambient temperature sensor) with delays and measurement noise. It should be noted that in practical applications, there may be delays in temperature detection and data transmission. At the same time, when the bubble module 4 is working, the water flow is violently agitated, the hot and cold water are mixed unevenly, and electromagnetic interference may cause the temperature sensor readings to fluctuate wildly within a certain error range, generating measurement noise. In addition, sudden situations such as changes in water volume and fluctuations in ambient temperature may occur during system operation, causing the heat loss model to be unable to fully cover all changing factors, generating process noise.

[0034] To address the issues of measurement noise and process noise during temperature sensor sampling, the Kalman filter achieves optimal estimation through the following steps: a state prediction step and a measurement update step. The state prediction step involves calculating a prior state estimate and its error covariance using a state transition model (containing known inputs). The measurement update step involves acquiring the temperature sensor readings, calculating the Kalman gain, fusing the prior estimate with the temperature sensor readings in an optimal ratio, and outputting the posterior state estimate (i.e., the optimal estimate of the true water temperature) at the current moment. By dynamically adjusting the Kalman gain, the Kalman filter can effectively suppress the influence of the aforementioned measurement noise and maintain robustness against the aforementioned process noise, thereby ensuring the reliability of the bubble water temperature estimation and significantly improving the accuracy of the bubble water temperature compensation calculation.

[0035] Furthermore, the Kalman filter can perform the above-mentioned state prediction step and measurement update step according to the water tank temperature sampling period Δt; as a preferred embodiment, for household or commercial cleaning equipment, the sampling period Δt is set to 0.5 to 1.0 seconds; for precision cleaning scenarios, Δt can be set to 0.2 to 0.5 seconds.

[0036] Next, the optimal estimated true water temperature output from the Kalman filter is sent to the compensation calculation subunit. This subunit can run a feedforward compensation step and a feedback compensation step. The feedforward compensation step is as follows: based on measurable information such as the on-state of the bubble module 4, ambient temperature, and air pump flow rate, the feedforward compensation power corresponding to the expected heat loss is calculated. This feedforward compensation step enables the control module to start adjusting the heating power of the heater 31 before the water temperature deviation occurs, achieving a rapid response. The feedback compensation step is as follows: the water temperature deviation is calculated as the difference between the target water temperature and the optimal estimated true water temperature. The compensation calculation subunit calculates the feedback compensation power based on the above water temperature deviation and through a PID algorithm. Through the feedforward-feedback composite control strategy of the compensation calculation subunit, the water temperature is ensured to converge to the target value quickly and stably, and water temperature fluctuations caused by disturbances such as bubble opening are effectively suppressed.

[0037] As another optional embodiment of this solution, such as Figures 1 to 4As shown, the water inlet module 2 includes a spray device 21 located at the top of the cleaning chamber 11, at least one water supply channel 22 connected to the spray device 21, and the first return channel 3 connected to the spray device 21. The spray device 21 can be configured as a rotating spray arm, and the water supply channel 22 can be used to inject cold water and / or hot water into the spray device 21 for cleaning. In practical applications, the water supply channel 22 can be used for the initial water intake of the cleaning equipment, or for replenishing water midway to adjust the cleaning water temperature, so as to form different water intake modes for the cleaning equipment. By setting a rotating spray arm, the uniformity of water intake into the cleaning chamber 11 can be improved, especially when replenishing water midway, the mixing uniformity of the original cleaning water and the replenishing water flow in the cleaning chamber 11 can be improved, thereby achieving uniformity and reliability of temperature regulation.

[0038] Figures 1 to 4 This invention illustrates another optional embodiment of the cleaning device. The water tank 1 has a housing 14 at its bottom, and the flow chamber 12 is located within the housing 14. A filter screen 15 is provided between the water tank 1 and the housing 14. The cleaning chamber 11 and the flow chamber 12 are connected through filter holes on the filter screen 15. The water tank temperature sensor 13 is located inside the housing 14 and below the filter screen 15. By providing a filter screen 15 between the cleaning chamber 11 and the flow chamber 12, impurities in the cleaning chamber 11 can be isolated, preventing them from entering the flow chamber 12, which is advantageous. To ensure the safety and reliability of the heater 31 and bubble generator 41 in the first return flow channel 3; secondly, the housing 14 is detachably located at the bottom of the water tank 1, and the water tank temperature sensor 13 is located inside the housing 14. The temperature sensor can be directly disassembled and reassembled by removing and installing the housing 14, which facilitates the maintenance and replacement of the temperature sensor. Furthermore, the cleaning box and the housing 14 are detachably sealed. Optionally, the cleaning box and the housing 14 can be detachably connected by screws or other connecting accessories, and a sealing gasket can be provided between the cleaning box and the housing 14 to prevent water leakage.

[0039] Figures 1 to 4An alternative embodiment of the cleaning device of the present invention is shown. The first return flow channel 3 is further connected to at least one water supply pipe 32. A control valve 33 is provided at the intersection of the water supply pipe 32 and the first return flow channel 3. The water supply pipe 32 communicates with the cleaning chamber 11, and the outlet of the water supply pipe 32 is located on the side wall or bottom of the water tank 1. A first booster pump 34 is also provided in the first return flow channel 3. The first booster pump 34 is located upstream of the heater 31. 4. Increase the water flow velocity in the first return channel 3; the first return channel 3 can be provided with multiple water supply ends to the cleaning chamber 11, wherein the water supply ends include the water outlet of the spray device 21 and the water outlet of the water supply pipe 32. By setting a control valve 33 at the intersection of the water supply pipe 32 and the first return channel 3, and the intersection being located downstream of the bubble generator 41, the hydraulic sensor 43 is connected between the water outlet of the bubble generator 41 and the water inlet of the control valve 33, the temperature-adjusted bubble water can be sprayed through the spray device 21. The water spray device 21 and water supply pipe 32 inject water into the cleaning chamber 11, further improving the uniformity of water mixing. It should be noted that the control valve 33 is electrically connected to the control module. Through the control valve 33, the flow between the water supply pipe 32 and the first return channel 3 can be independently controlled, thereby achieving multi-path adjustment of the water flow between the first return channel 3 and the cleaning chamber 11, improving the user experience. Secondly, the first return channel 3 can extend from one side of the housing 14 around the outer wall of the water tank 1 to the top spray nozzle. At the shower device 21, the water supply pipe 32 can be arranged around the outside of the water tank 1, and the outlet of the water supply pipe 32 is located on the side wall or bottom of the water tank 1 to improve the uniformity of the bubble water entering the water tank 1; further optionally, the height of the above-mentioned intersection is higher than the flow cavity 12, and by setting the first booster pump 34, the water flow velocity in the first return flow channel 3 can be increased, thereby improving the water supply efficiency. Moreover, the first booster pump 34 can be set close to the bottom of the water tank 1, which is beneficial to increase the center of gravity of the water tank 1 and improve the stability of the cleaning equipment.

[0040] In practical applications, the cleaning equipment can be configured to: respond to the start signal of the first booster pump 34 and the comparison result of the actual hydraulic value in the first return channel 3 measured by the hydraulic sensor 43 and the preset value, control the bubble generator 41 or the air filling device 42 to start; in other words, when the water in the flow chamber 12 is pumped to the first return channel 3 by the first booster pump 34, and when the hydraulic sensor 43 measures that the hydraulic pressure has reached the preset value, the bubble module 4 and the heater 31 are started to ensure that the cleaning equipment heats the circulating water and / or generates bubbles during the circulating water return, thereby ensuring the normal operation of the circulating water cleaning mode of the cleaning equipment.

[0041] Alternatively, two water supply pipes 32 can be provided. The outlet of both water supply pipes 32 can be located on the side wall or bottom of the water tank 1, or the outlet of one water supply pipe 32 can be located on the side wall of the water tank 1 and the outlet of the other water supply pipe 32 can be located at the bottom of the water tank 1. No specific limitation is made here. Three diversion channels are formed between the two water supply pipes 32 and the first return flow channel 3. The control valve 33 can be set as a three-way control valve 33.

[0042] As an optional embodiment of this solution, the water outlet of the water pipe 32 can be positioned between the top and bottom of the water tank 1, and the water outlet of the water pipe 32 can be positioned close to the bottom of the cleaning chamber 11. In practical applications, water can be injected from the top of the cleaning chamber 11 through the spray device 21, while water is injected from the bottom side of the cleaning chamber 11 through the water pipe 32, so as to improve the uniformity of water flow mixing.

[0043] Figures 1 to 4 This invention illustrates another optional embodiment of the cleaning device. The water supply channel 22 includes a cold water input channel 221, a hot water input channel 222, and a confluence channel 223 connected to the water inlet of the spray device 21. The cold water input channel 221 and the hot water input channel 222 are respectively connected to the confluence channel 223. The cold water input channel 221 and the hot water input channel 222 are respectively provided with a first inlet valve 224 and a second inlet valve 225. The confluence channel 223 is provided with a flow meter 226, which adjusts the water inlet flow at the first inlet valve 224 and / or the second inlet valve 225. In this embodiment, the flow meter 226, the first inlet valve 224, and the second inlet valve 225 are electrically connected to a control module. The first inlet valve 224 is located at the water inlet of the cold water input channel 221, and the second inlet valve 225 is located at the water inlet of the spray device 21. The inlet valve 225 is located at the inlet end of the hot water inlet channel 222. The first inlet valve 224 and the second inlet valve 225 are used to control the opening and closing of the cold water inlet channel 221 and the hot water inlet channel 222, respectively. When the actual water temperature measured by the temperature sensor is less than the target temperature value, the control module can trigger the first inlet valve 224 to open to input cold water into the cleaning chamber 11, and / or trigger the second inlet valve 225 to open to input hot water into the cleaning chamber 11. The newly injected water mixes with the original water in the cleaning chamber 11, thereby realizing the regulation and control of the cleaning water temperature during the cleaning process, so that the water temperature in the cleaning chamber 11 is maintained at the target value, which is conducive to optimizing the cleaning effect. Secondly, the water temperature in the cleaning chamber 11 can be directly adjusted by directly inputting cold water and / or hot water to mix with the original cleaning water, without waiting for heating time, which is conducive to improving the temperature regulation efficiency.

[0044] In practical applications, the cleaning equipment has independently controllable water replenishment and temperature adjustment modes and circulation and temperature adjustment modes. The water replenishment and temperature adjustment mode adjusts the cleaning water temperature by directly inputting cold water, hot water, or a mixture of cold and hot water through the cold water inlet channel 221 and / or the hot water inlet channel 222. Since water loss occurs during the cleaning process, this water replenishment and temperature adjustment mode is suitable for situations where additional water needs to be added to the water tank 1. The flow meter 226 can control the water inlet flow of the cold water inlet channel 221 and / or the hot water inlet channel 222 according to the preset water replenishment amount to ensure appropriate water replenishment and avoid water waste. The circulation and temperature adjustment mode forms circulating water through the first return channel 3 and achieves temperature adjustment by reheating the circulating water through the heater 31 in the first return channel 3. This circulation and temperature adjustment mode is suitable for situations where no additional water replenishment is required, promoting the recycling of cleaning water. The heater 31 reheats the circulating water to ensure the cleaning effect. In addition, the reheated circulating water can also generate bubble water through the bubble generator 41 to enhance the deep cleaning effect.

[0045] Figures 1 to 4 This invention illustrates another optional embodiment of the cleaning device, which further includes an ultrasonic cleaning module 8 disposed in the water tank 1 and an electrolysis module 6 disposed in the flow cavity 12. Multiple ultrasonic cleaning modules 8 are provided and spaced apart at the bottom of the water tank 1. The flow cavity 12 is located between each of the ultrasonic cleaning modules 8, and the output end 81 of any ultrasonic cleaning module 8 can extend into the cleaning cavity 11. The electrolysis module 6 includes an electrolysis element 61 and a mounting bracket 62. The electrolysis element 61 is mounted in the flow cavity 12 via the mounting bracket 62. In this embodiment, the cleaning device is configured with multiple ultrasonic cleaning modules. Block 8, the ultrasonic cleaning module 8 is installed at the bottom of the water tank 1, and its output end 81 extends into the cleaning chamber 12 through the bottom of the water tank 1, so that the ultrasonic cleaning module 8 can act on the water in the water tank 1. At the same time, the cleaning equipment is also equipped with an electrolysis module 6. The cleaning equipment can clean items through the ultrasonic cleaning module 8 and the electrolysis module 6 working together. The cavitation effect of the ultrasonic cleaning module 8 can effectively remove dirt, particles and other substances from the items without easily damaging them. At the same time, electrolyzed water is generated through the electrolysis element 61, and the electrolyzed water can flow into the cleaning chamber 11 to achieve efficient disinfection and sterilization, enhance the functionality of the cleaning equipment, optimize the cleaning effect, and improve the cleaning efficiency.

[0046] Optionally, the electrolytic element 61 preferably adopts a stacked electrode assembly, with multiple electrode sheets installed in the mounting bracket 62. The electrolytic element 61 can be assembled in the housing 14 through the mounting bracket 62, and the electrolytic element 61 can be fixed in the middle of the flow cavity 12, which helps to increase the contact area between the electrolytic element 61 and the water flow in the flow cavity 12, thereby improving the electrolysis efficiency. Further optionally, the mounting bracket 62 is provided with four support feet so that the electrolytic element 61 can be suspended and fixed in the middle of the flow cavity 12, and water flow is allowed to pass through both the upper and lower sides of the electrolytic element 61.

[0047] The cleaning equipment of this invention integrates an ultrasonic cleaning module 8, an electrolysis module 6, and a bubble module 4. During cleaning, these modules operate simultaneously. The high-frequency vibrations generated by the ultrasonic module 8 induce cavitation in the liquid, effectively removing tiny dirt and attached particles from the surface of objects. The electrolysis module 6 electrolyzes water to generate highly oxidizing active oxygen and trace amounts of hypochlorous acid, achieving deep decomposition and sterilization of organic matter, grease, and microorganisms. The bubble module 4 continuously releases a uniform and fine stream of bubbles, creating turbulence in the cleaning liquid, enhancing the permeability and coverage of the cleaning medium, while also assisting in removing stains and reducing cleaning dead zones. This cleaning equipment achieves a multi-mechanism synergistic cleaning method, complementing physical impact, chemical decomposition, and fluid dynamics to improve cleaning efficiency and cleanliness. It also reduces energy consumption and dependence on chemical cleaning agents compared to single cleaning modes, making it particularly suitable for cleaning precision parts, complex structural surfaces, and scenarios with high hygiene requirements, demonstrating high efficiency, environmental friendliness, and comprehensive technical advantages.

[0048] Figures 1 to 4An alternative embodiment of the cleaning device of the present invention is shown. The cleaning device further includes a steam module 5, which includes a purified water inlet channel 51 and a steam inlet channel 52 connecting the purified water inlet channel 51 and the cleaning chamber 11. A steam generator 53 is provided between the purified water inlet channel 51 and the steam inlet channel 52. A third water inlet valve 55 is provided in the purified water inlet channel 51. An ozone generator 9 is also provided on the top of the water tank 1, and the output port of the ozone generator 9 is connected to the cleaning chamber 11. The third water inlet valve 55, the steam generator 53, and the ozone generator 53 are also present. The generator 9 is electrically connected to the control module to enable the cleaning equipment to have a steam sterilization function. The clean water input channel 51 is used to inject clean water or pure water into the steam generator 53, and the steam generator 53 converts the clean water or pure water into steam. The steam flows into the cleaning chamber 11 through the steam input channel 52, which can perform high-temperature sterilization in the cleaning chamber 11, thereby improving the cleaning effect. At the same time, the ozone generator 9 introduces ozone into the cleaning chamber 11, which helps to remove odors. Secondly, the steam generated by clean water or pure water helps to reduce scale, thereby extending the service life of the steam module 5. In practical applications, the cleaning equipment has at least an item cleaning mode and a self-cleaning mode. When the cleaning equipment is in item cleaning mode, it can clean items through the steam module 5 combined with hot water spray. In addition, it can also use the ultrasonic cleaning module 8, the electrolysis module 6 and the bubble module 4 to clean in conjunction, further improving the cleaning effect. When the cleaning equipment is in self-cleaning mode, it can use the steam module 5 and the ozone generator 9 to clean the inside of the water tank 1 to remove debris, stains and odors from the inside of the water tank 1, thereby enhancing the cleaning effect. Then, it can be combined with hot water spray to rinse the inside of the water tank 1. Finally, the wastewater is discharged to complete the self-cleaning of the water tank 1, preparing it for the next item cleaning.

[0049] Furthermore, a second return channel 54 is connected to one side of the purified water input channel 51. The second return channel 54 is connected to the cleaning chamber 11, and a second booster pump 56 is provided in the second return channel 54. The second booster pump 56 is electrically connected to the control module. The second booster pump 56 is located near the bottom of the water tank 1, and the water outlet of the second return channel 54 is higher than the second booster pump 56. The second booster pump 56 increases the water flow rate in the second return channel 54, and can pump the residual water in the purified water input channel 51 into the cleaning chamber 11 so that the purified water flows back to the cleaning chamber 11, which can reduce water accumulation in the pipe and improve water utilization.

[0050] Figures 1 to 4Another optional embodiment of the cleaning device of the present invention is shown. The cleaning device further includes a drainage module 7, which includes a drainage channel 71 communicating with the flow chamber 12 and a drainage pump 72 disposed in the drainage channel 71. The drainage pump 72 is electrically connected to the control module. After cleaning is completed, the water in the accommodating cavity and the cleaning cavity 11 can be discharged through the drainage channel 71 by the drainage pump 72.

[0051] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. An automatic cleaning device, characterized in that, include: A water tank (1) is provided with a cleaning chamber (11) inside. The cleaning chamber (11) is connected to a flow chamber (12). A water tank temperature sensor (13) is provided in the flow chamber (12). A water inlet module (2) is connected to the cleaning chamber (11). The first return flow channel (3) is connected between the flow chamber (12) and the cleaning chamber (11), and a heater (31) is provided on the first return flow channel (3). The bubble module (4) includes a bubble generator (41) disposed in the first return channel (3), an air intake module (42) connected to the bubble generator (41), and a hydraulic sensor (43) connected to the first return channel (3). The bubble generator (41) is located downstream of the heater (31), and the hydraulic sensor (43) is connected to the downstream of the bubble generator (41). The heater (31), the bubble generator (41) and the hydraulic sensor (43) are electrically connected.

2. The automatic cleaning equipment as described in claim 1, characterized in that, The air intake module (42) includes an air passage (421) connected to the bubble generator (41), a one-way valve and an inflation device (422) disposed on the air passage (421), wherein the one-way valve is located downstream of the inflation device (422).

3. The automatic cleaning equipment as described in claim 1, characterized in that, The bottom of the water tank (1) is provided with a shell (14), the flow chamber (12) is provided inside the shell (14), a filter screen (15) is provided between the water tank (1) and the shell (14), the cleaning chamber (11) and the flow chamber (12) are connected through the filter holes on the filter screen (15), and the water tank temperature sensor (13) is provided inside the shell (14) and below the filter screen (15).

4. The automatic cleaning equipment as described in claim 1, characterized in that, The water inlet module (2) includes a spray device (21) located at the top of the cleaning chamber (11), at least one water supply channel (22) connected to the spray device (21), and the first return channel (3) is connected to the spray device (21).

5. An automatic cleaning device as described in claim 4, characterized in that, The first return flow channel (3) is also connected to at least one water supply pipe (32). A control valve (33) is provided at the intersection of the water supply pipe (32) and the first return flow channel (3). The water supply pipe (32) is connected to the cleaning chamber (11), and the outlet of the water supply pipe (32) is located on the side wall or bottom of the water tank (1). The first return flow channel (3) is also provided with a first booster pump (34), which is located upstream of the heater (31).

6. An automatic cleaning device as described in claim 4, characterized in that, The water supply channel (22) includes a cold water input channel (221), a hot water input channel (222), and a confluence channel (223) connected to the water inlet end of the spray device (21). The cold water input channel (221) and the hot water input channel (222) are respectively connected to the confluence channel (223). The cold water input channel (221) and the hot water input channel (222) are respectively provided with a first inlet valve (224) and a second inlet valve (225). The confluence channel (223) is provided with a flow meter (226), and the flow rate at the first inlet valve (224) and / or the second inlet valve (225) is adjusted by the flow meter (226).

7. An automatic cleaning device as described in any one of claims 1 to 6, characterized in that, It also includes a steam module (5), which includes a clean water input channel (51) and a steam input channel (52) connecting the clean water input channel (51) and the cleaning chamber (11). A steam generator (53) is provided between the clean water input channel (51) and the steam input channel (52). A third water inlet valve (55) is provided in the clean water input channel (51). An ozone generator (9) is also provided on the top of the water tank (1). The output port of the ozone generator (9) is connected to the cleaning chamber (11).

8. An automatic cleaning device as described in claim 7, characterized in that, The water inlet channel (51) is also connected to a second return channel (54), which is connected to the cleaning chamber (11). A second booster pump (56) is provided in the second return channel (54).

9. An automatic cleaning device as described in any one of claims 1 to 6, characterized in that, It also includes an ultrasonic cleaning module (8) disposed in the water tank (1) and an electrolysis module (6) disposed in the flow cavity (12). Multiple ultrasonic cleaning modules (8) are provided and spaced apart at the bottom of the water tank (1). The flow cavity (12) is located between each ultrasonic cleaning module (8). The output end (81) of any ultrasonic cleaning module (8) can extend into the cleaning cavity (11). The electrolysis module (6) includes an electrolysis element (61) and a mounting bracket (62). The electrolysis element (61) is assembled in the flow cavity (12) through the mounting bracket (62).

10. An automatic cleaning device as described in any one of claims 1 to 6, characterized in that, It also includes a drainage module (7), which includes a drainage channel (71) connected to the flow chamber (12) and a drainage pump (72) disposed in the drainage channel (71).

Images