Underwater cleaning machine

Abstract

The utility model provides an underwater cleaning machine, and aims to solve the problem of high cost during cleaning, maintenance and replacement of a filtering device. The underwater cleaning machine comprises a machine body provided with a water inlet and a water outlet; the filtering device is arranged in the machine body, and when the underwater cleaning machine is in a cleaning mode, water flows into the machine body through the water inlet and is discharged from the water outlet after being filtered by the filtering device; wherein the filtering device comprises a first shell and a second shell, the first shell is arranged in the direction of the machine body, the second shell is detachably connected with the first shell, the second shell is provided with a containing space, the first shell seals an opening of the containing space of the second shell, and the first shell is provided with a first filtering piece; the second shell is provided with a first opening communicated with the water inlet.

Description

Technical Field

[0001] This application relates to the field of robotics, and in particular to an underwater cleaning machine. Background Technology

[0002] Underwater cleaning robots are robots capable of performing cleaning tasks in pools. Typically, underwater cleaning robots have a filtration system inside their bodies, which collects dirt and debris from the pool during operation.

[0003] One type of underwater cleaning robot in related technologies is prone to filter blockage or damage by algae, silt and other impurities after long-term use. However, the filter components are difficult to disassemble, resulting in high costs for cleaning, maintenance and replacement of the filter device. Utility Model Content

[0004] This application provides an underwater cleaning machine designed to improve the high cost of cleaning, maintaining, and replacing filter devices.

[0005] The specific technical solution is as follows:

[0006] This application provides an underwater cleaning machine, including: a body with an inlet and an outlet; and a filter device disposed inside the body. When the underwater cleaning machine is in cleaning mode, water flows into the body through the inlet, is filtered by the filter device, and is discharged from the outlet. The filter device includes a first housing arranged along the body and a second housing detachably connected to the first housing. The second housing has a receiving space, the first housing closes the opening of the receiving space of the second housing, and the first housing is provided with a first filter element. The second housing is provided with a first opening communicating with the inlet.

[0007] In this application, the filtration device includes a first housing and a second housing arranged along the direction of the machine body, and the first housing and the second housing are detachably connected. Furthermore, a first filter element is disposed on the first housing. When the first filter element is clogged or damaged by impurities, the first housing and the second housing can be disassembled, allowing for cleaning or replacement of only the first housing, or only the first filter element. This helps reduce the cost of cleaning, maintenance, and replacement of the filtration device.

[0008] In some embodiments, the second housing does not have a filter element. All water flowing inside the filtration device is filtered through the first filter element, which helps to reduce the cost of the filtration device, increase the flow rate of water passing through the filtration device, and ensure the filtration effect.

[0009] In some embodiments, the second housing is provided with a second filter element at least partially on the side opposite to the first housing. This arrangement allows water to flow out of the containment space through the second filter element when the filter is removed from underwater, preventing debris from being carried out of the filter box when water is discharged from the inlet or other openings. It also improves the problem of "dead zones" formed within the filter due to difficulty in water drainage, reducing the probability of odor generation and further enhancing the convenience of cleaning and maintenance of the filter.

[0010] In some embodiments, a filter screen is provided on the side of the second housing opposite to the first housing, and a first switch is provided on the side of the filter screen away from the receiving space; when the underwater cleaner leaves the water surface, the first switch is in the open state (the first switch is in the open state when the machine leaves the water surface and drains water from the machine); when the underwater cleaner is running underwater / in water / on the water surface, the first switch is in the closed state, and the operation includes cleaning and / or waste collection. This configuration, on the one hand, avoids the water flow carrying waste out of the filter box when it exits through the inlet, etc.; it also improves the problem of "dead zones" formed in the filter device due to the inconvenience of water discharge. On the other hand, it helps to improve the reliability of waste cleaning and waste collection.

[0011] In some embodiments, the first housing has a plate-like structure; the second housing tapers away from the first housing. This causes dirt to accumulate at the bottom converging end of the second housing. This results in more thorough dirt recovery from the filter, thereby reducing dirt residue in the filter.

[0012] In some embodiments, at least one sidewall of the second housing is trapezoidal. This configuration allows the second housing to form a bottom-converging structure. Furthermore, the trapezoidal sidewall of the second housing can form a guide surface, allowing dirt to slide down the sidewall to the bottom converging end of the second housing. Therefore, during waste collection, it is beneficial to further reduce dirt residue in the filtration device.

[0013] In some embodiments, the first opening extends away from the water inlet to form a water inlet channel, which extends into the receiving space of the second housing to form a port, the port being opposite to the bottom wall of the receiving space; wherein, the bottom wall is the wall surface of the second housing that is away from the first housing and opposite to the first housing. This facilitates more thorough recovery of contaminants in the filter device, reducing contaminant residue in the filter device.

[0014] In some embodiments, a second switch is provided at the port near the side wall of the first housing. When the underwater cleaning machine is suctioning, the second switch is in the open state; when the second switch is open, the communication area between the port and the accommodating space increases. Opening the second switch during cleaning increases the communication area, thereby improving cleaning efficiency. When the underwater cleaning machine is collecting waste, the second switch is closed, increasing the suction force at the port and facilitating efficient back-suction and recycling of waste.

[0015] In some embodiments, the underwater cleaning machine further includes a drive assembly disposed within the body, with the first housing closer to the drive assembly than the second housing. This shortens the distance the filtered water travels to the drive assembly, reducing frictional resistance and thus improving the underwater cleaning machine's efficiency and reducing energy consumption.

[0016] In some embodiments, the underwater cleaning machine further includes a mounting component disposed within the body, the mounting component being located between the first housing and the water outlet; the mounting component is equipped with a third filter element, water enters through the water inlet, is filtered sequentially by the first filter element and the third filter element, and is discharged from the water outlet; wherein, the filtration accuracy of the third filter element is higher than that of the first filter element. In some embodiments, the third filter element can also be used directly, such as a sponge. This configuration, on the one hand, helps to improve the filtration effect. On the other hand, large particles of dirt are retained in the containment space, while small particles of impurities are adsorbed / intercepted on the third filter element, thereby helping to improve the cleaning / usage cycle of the third filter element.

[0017] In some embodiments, the first filter element is a filter screen, and the third filter element is a sponge or a high-efficiency particulate filter screen. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an underwater cleaning machine provided in an embodiment of this application (corresponding to the posture of the underwater cleaning machine when moving forward and backward underwater);

[0019] Figure 2 This is a schematic diagram of the structure of a filtration device provided in an embodiment of this application;

[0020] Figure 3 This is a cross-sectional structural schematic diagram of a filtration device provided in an embodiment of this application;

[0021] Figure 4 This is a structural schematic diagram of an underwater cleaning machine provided in one embodiment of this application from another perspective (corresponding to the underwater cleaning machine's posture when it is being raised, lowered, or connected to a base station);

[0022] Figure 5A cross-sectional structural schematic diagram of a filtering device provided in an embodiment of this application from another perspective;

[0023] Figure 6 This is another structural schematic diagram of a filtering device provided in an embodiment of this application.

[0024] The annotations in the attached figures are explained as follows:

[0025] 1. Underwater cleaning machine;

[0026] 10. Filter device; 20. Drive assembly; 30. Body; 31. Inlet; 40. Mounting parts; 41. Third filter element;

[0027] 110. Second housing; 101. First opening; 103. Water passage gap; 110a. Accommodation space; 111. Side wall; 112. Bottom wall; 113. Second filter element; 1131. Filter screen; 1132. First switch element.

[0028] 120. First housing; 121. First filter element;

[0029] 200, water inlet channel; 202, port; 230, second switch. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0031] In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] like Figures 1 to 3 As shown in the figure, this application provides an underwater cleaning machine 1. The underwater cleaning machine 1 includes a body 30 and a filter device 10. The body 30 is provided with a water inlet 31 and a water outlet (not shown in the figure). The filter device 10 is disposed inside the body 30. When the underwater cleaning machine 1 is in cleaning mode, water flows into the body 30 through the water inlet 31, is filtered by the filter device 10, and is discharged from the water outlet. The filter device 10 includes a first housing 120 arranged along the direction of the body and a second housing 110 detachably connected to the first housing 120. The second housing 110 has a receiving space 110a. The first housing 120 closes the opening of the receiving space 110a of the second housing 110, and the first housing 120 is provided with a first filter element 121. The second housing 110 is provided with a first opening 101 communicating with the water inlet 31.

[0035] The underwater cleaning machine 1 includes a body 30 and a filter device 10. The body 30 is the main structure of the underwater cleaning machine 1. The body 30 can operate underwater, filtering water flow through an inlet 31, a filter device 10, and an outlet, thereby collecting dirt (mainly solid waste) in the water into the filter device 10. The body 30 can also be connected to a base station to perform garbage suction, thereby sucking the dirt back out of the filter device 10, ensuring the reuse of the filter device 10.

[0036] Reference Figure 1 The filter device 10 includes a first housing 120 and a second housing 110 arranged along the body direction. The body direction refers to the length direction of the body 30 of the underwater cleaning machine 1. It is understood that the underwater cleaning machine 1 has multiple attitudes, such as forward attitude and backward attitude, ascending attitude and diving attitude, etc., and the attitude of the filter device 10 will also change synchronously according to the attitude of the underwater cleaning machine 1.

[0037] Specifically, such as Figure 1 and Figure 3As shown, when the underwater cleaning machine 1 is cleaning debris at the bottom of the pool in a forward and backward posture, the length direction of the machine body 30 is consistent with the travel direction X (forward and backward direction) of the underwater cleaning machine 1. At this time, the first housing 120 and the second housing 110 of the filter device 10 are arranged along the horizontal travel direction X of the underwater cleaning machine 1, and the first opening 101 of the second housing 110 can face the bottom of the water to facilitate the collection of dirt from the bottom of the water.

[0038] like Figure 4 and Figure 5 As shown, when the underwater cleaning machine 1 ascends or descends to perform operations such as ascent, base station docking, and descent, the length of the body 30 can be aligned with the vertical direction Z of the underwater cleaning machine 1. This is equivalent to the body 30 flipping over, reducing water resistance during ascent and descent. Simultaneously, the filter device 10 flips over, with the first housing 120 and the second housing 110 arranged along the vertical direction Z of the underwater cleaning machine 1. The first opening 101 of the second housing 110 no longer faces the bottom, thus preventing dirt from leaking out of the filter device 10 due to gravity.

[0039] The first housing 120 and the second housing 110 can be connected by various detachable methods such as snap-fit ​​connection and threaded connection, and this application does not limit this. The first opening 101 of the second housing 110 is connected to the water inlet 31, so that external water flows into the filter device 10 through the water inlet 31 and the first opening 101 in sequence. The receiving space 110a of the second housing 110 is used to receive dirt. The first housing 120 is used to close the receiving space 110a and filter the dirt in the receiving space 110a through the first filter element 121. Water can flow out of the receiving space 110a through the first filter element 121, and dirt is blocked in the receiving space 110a by the first filter element 121. It should be noted that in the figure, the reference numeral for the first filter element 121 is pointed to the first housing 120 by an arrow line, indicating that the first filter element 121 is installed on the water outlet (not shown in the figure) of the first housing 120, so that the water flowing out of the water outlet of the first housing 120 can be filtered by the first filter element 121.

[0040] The specific working process of the underwater cleaning machine 1 is as follows: When the underwater cleaning machine 1 is performing cleaning operations at the bottom of the water, the length direction of the machine body 30 is consistent with the direction of travel X, and the first opening 101 can face the side where the bottom is located. Water flows into the filter device 10 through the inlet 31 and the first opening 101, thereby continuously collecting dirt. When the dirt reaches the preset volume, the underwater cleaning machine 1 starts the garbage collection function: first, it adjusts its posture so that the length direction of the machine body 30 is consistent with the lifting direction Z (perpendicular to the direction of travel), and then climbs to the surface. At this time, the posture of the filter device 10 changes synchronously, and the first opening 101 no longer faces the bottom, so that the filter device 10 can better store dirt and prevent dirt from leaking out of the first opening 101 and returning to the water due to gravity during the climbing process. After the machine body 30 climbs to the position, it docks with the base station, and the base station can suck up the dirt in the storage space 110a of the filter device 10. After suction is completed, the underwater cleaning machine 1 dives underwater again to repeat the garbage cleaning operation.

[0041] In this application, the filter device 10 includes a first housing 120 and a second housing 110 arranged along the body direction, and the first housing 120 and the second housing 110 are detachably connected. Further, a first filter element 121 is disposed on the first housing 120. When the first filter element 121 is clogged or damaged by impurities, the first housing 120 and the second housing 110 can be disassembled, allowing for cleaning or replacement of only the first housing 120, or only the first filter element 121. This helps reduce the cost of cleaning, maintenance, and replacement of the filter device 10. Furthermore, it also improves the convenience of cleaning and maintaining the filter device 10.

[0042] Furthermore, since the first housing 120 and the second housing 110 are detachably connected, the first filter element 121 of the filter device 10 can be adjusted and optimized in a targeted manner according to different underwater cleaning scenarios and water quality conditions, which is also conducive to improving the application scenarios and applicability of the underwater cleaning machine 1.

[0043] In some embodiments, such as Figure 2 and Figure 3 As shown, the second housing 110 does not have a filter element. That is, all the water inside the filter device 10 is filtered through the first filter element 121, which helps to reduce the cost of the filter device 10, increase the flow rate of water through the filter device 10, and ensure the filtration effect.

[0044] In some embodiments, such as Figure 6 As shown, the second housing 110 is provided with at least a portion of a second filter element 113 on the side opposite to the first housing 120.

[0045] In this embodiment, at least a portion of the second housing 110 opposite to the first housing 120 is provided with a second filter element 113. After water enters the receiving space 110a, it can also flow out through the second filter element 113. With this configuration, when the filter device 10 is removed from underwater, the water in the receiving space 110a can flow out through the second filter element 113, preventing the water from carrying out debris from the filter box when it is discharged from the inlet, etc. This can speed up / facilitate the rapid discharge of water from the machine when it is lifted out of the water. At the same time, it can improve the problem of water forming a "dead zone" in the filter device 10 due to the inconvenience of water discharge, reduce the probability of the filter device 10 producing odors, and further improve the convenience of cleaning and maintaining the filter device 10.

[0046] In some embodiments, such as Figure 6 As shown, a filter screen 1131 is provided on the side of the second housing 110 opposite to the first housing 120, and a first switch 1132 is provided on the side of the filter screen 1131 away from the receiving space 110a; wherein, when the underwater cleaning machine 1 leaves the water surface, the first switch 1132 is in the open state (when the machine leaves the water surface, the first switch 1132 is in the open state when the water inside the machine is discharged); when the underwater cleaning machine 1 is running underwater / in the water / on the water surface, the first switch 1132 is in the closed state, and the operation includes cleaning and / or garbage collection.

[0047] In this embodiment, the second housing 110 is provided with a second filter element 113, which is a filter screen 1131. That is, the filter screen 1131 is connected to the receiving space 110a of the second housing 110. Furthermore, a first switch element 1132 is provided on the side of the filter screen 1131 facing away from the receiving space 110a. The first switch element 1132 can control the opening and closing of the outlet of the filter screen 1131. That is, water can selectively flow through the filter screen 1131 and out of the filtration device 10.

[0048] Specifically, when the underwater cleaning machine 1 leaves the water surface, the first switch 1132 is in the open state. At this time, the water in the containing space 110a can flow out through the filter screen 1131, thereby quickly draining the water from the machine when it is lifted out of the water, and also improving the problem of water forming a "dead zone" in the filter device 10 due to the inconvenience of drainage. When the underwater cleaning machine 1 is running underwater / in water / on the surface, the first switch 1132 is in the closed state. The operating states of the underwater cleaning machine 1 can include a garbage cleaning state and a garbage collection state. Taking the underwater cleaning machine 1 in the garbage cleaning state as an example, at this time, the water in the water flows into the containing space 110a through the first opening 101, and then flows out of the filter device 10 only through the first filter element 121, thus forming a filtration channel. This can improve the reliability of garbage cleaning. Taking the underwater cleaning machine 1 in the garbage collection state as an example, the underwater cleaning machine 1 is connected to the base station, and the dirt in the containing space 110a is sucked out of the containing space 110a through the first opening 101 under the suction action of the base station. Since the first switch 1132 is closed, a larger suction force can be generated, which in turn helps to improve the reliability of waste recycling.

[0049] It should be noted that the first switch 1132 can be a movable baffle / sealing plate (preferably a flexible plate) disposed on the surface of the second housing 110 opposite to the receiving space 110a, which can automatically block or open the second filter element 1131 according to the operating status of the underwater cleaning machine 1; or, a pipeline communicating with the second filter element 1131 can be disposed on the surface of the second housing 110 opposite to the receiving space 110a, and the first switch can be a solenoid valve disposed on the pipeline, which can control the opening and closing of the pipeline according to the operating status of the underwater cleaning machine 1, thereby automatically blocking or opening the second filter element 1131. The first switch can be disposed in various ways, and this application does not limit it.

[0050] In some embodiments, such as Figure 2 and Figure 3 As shown, the first housing 120 has a plate-like structure, and the second housing 110 converges in a direction away from the first housing 120. That is, the accommodating space 110a of the second housing 110 has a shape with a large opening and a tapering bottom. Since the first housing 120 and the second housing 110 are arranged along the length of the fuselage 30, when the fuselage 30 is docked with the base station, the length of the fuselage 30 is the same as the lifting direction Z. At this time, the second housing 110 and the first housing 120 are arranged along the lifting direction Z. In this case, referring to... Figure 4 and Figure 5The second housing 110 is positioned with its bottom facing downwards at the end furthest from the first housing 120, which allows dirt to accumulate at the bottom converging end of the second housing 110. This ensures more thorough recovery of dirt from the filter device 10, thereby reducing dirt residue in the filter device 10.

[0051] In some embodiments, such as Figure 2 , Figure 3 , Figure 5 As shown, at least one sidewall 111 of the second housing 110 has a trapezoidal structure. This configuration allows the second housing 110 to form a bottom-converging structure. Furthermore, the trapezoidal sidewall 111 of the second housing 110 can form a guide surface, allowing dirt to slide down the sidewall to the bottom converging end of the second housing 110. Therefore, during waste collection, it is beneficial to further reduce dirt residue in the filter device 10.

[0052] Optionally, such as Figure 3 As shown, the second housing 110 also includes a bottom wall 112 connected to the side wall 111. The bottom wall 112 is a wall surface of the second housing 110 that is away from the first housing 120 and opposite to the first housing 120. There are multiple side walls 111, all of which are trapezoidal structures. Further, the included angle between the side wall 111 and the bottom wall 112 is greater than 90° and less than 180°.

[0053] This design allows the sidewall 111 to form a trapezoidal structure, thereby achieving the effect of allowing dirt to accumulate at the bottom converging end of the bottom wall 112.

[0054] In some embodiments, such as Figure 1 , Figure 3 As shown, the first opening 101 extends a water inlet channel 200 in a direction away from the water inlet 31. The water inlet channel 200 extends into the receiving space 110a of the second housing 110 to form a port 202. The port 202 is opposite to the bottom wall 112 of the receiving space 110a.

[0055] By providing a water inlet channel 200, the interface on the base station can extend into the water inlet channel 200 through the first opening 101. Since the water inlet channel 200 extends into the receiving space 110a of the second housing 110, when the base station's suction pump operates, the dirt concentrated in the receiving space 110a can be easily sucked away through the water inlet channel 200 under the suction action of the pump. This facilitates more thorough recovery of dirt from the filter device 10, reducing dirt residue in the filter device 10. Furthermore, the port 202 of the water inlet channel 200 is opposite to the bottom wall 112 of the receiving space 110a, thus leaving a water passage gap 103 between them. In this way, when the underwater cleaning machine 1 performs a cleaning task, external water can enter the receiving space 110a through the water inlet channel 200, and then flow through the water passage gap 103 to the first filter element 121 of the first housing 120 before being discharged.

[0056] In some embodiments, such as Figure 5 As shown, a second switch 230 is provided at the port 202 near the side wall of the first housing 120. When the underwater cleaning machine 1 is suctioning dirt, the second switch 230 is in the open state. When the second switch 230 is open, the communication area between the port 202 and the accommodating space 110a increases.

[0057] By changing the state of the second switch 230, the communication area between port 202 and the accommodating space 110a can be controlled. When the underwater cleaning machine 1 is suctioning waste, the second switch 230 is opened, increasing the communication area and thus improving cleaning efficiency. When the underwater cleaning machine 1 is collecting waste under the action of the base station's suction pump, the second switch 230 is closed, thereby increasing the suction force at port 202 and facilitating efficient reverse suction and collection of waste.

[0058] Optionally, the second switch element 230 can be a rotating plate connected to the channel wall of the water inlet channel 200. When the rotating plate is in the first position, it is in a closed state, and the communication area between port 202 and the receiving space 110a is minimized or completely closed. When the rotating plate is in the second position, it is in an open state, and the communication area between port 202 and the receiving space 110a is maximized. Alternatively, the second switch element 230 can also be a telescopic plate connected to the channel wall of the water inlet channel 200. When the telescopic plate is in an extended state, it is in a closed state, and the communication area between port 202 and the receiving space 110a is minimized or completely closed. When the telescopic plate is in a retracted state, it is in an open state, and the communication area between port 202 and the receiving space 110a is maximized. The second switch element 230 can be configured in various ways, and this application does not limit this.

[0059] In some embodiments, such as Figure 1As shown, the underwater cleaning machine 1 also includes a drive assembly 20 disposed within the body 30, with the first housing 120 being closer to the drive assembly 20 than the second housing 110.

[0060] The drive component 20 can be, for example, a water pump. Under the driving action of the drive component 20, external water will enter the filter device 10 for filtration. Since the first housing 120 is closer to the drive component 20, and the first filter element 121 is disposed on the first housing 120, the distance of the filtered water to the drive component 20 is shortened, which can reduce frictional resistance, thereby improving the working efficiency of the underwater cleaning machine 1 and reducing energy consumption.

[0061] In some embodiments, such as Figure 1 As shown, the underwater cleaning machine 1 also includes a mounting component 40 disposed within the body 30. The mounting component 40 is located between the first housing 120 and the water outlet. The mounting component 40 is provided with a third filter element 41. Water flows in through the water inlet 31, is filtered by the first filter element 121 and the third filter element 41 in sequence, and is discharged from the water outlet. The filtration accuracy of the third filter element 41 is higher than that of the first filter element 121.

[0062] In this embodiment, a mounting member 40 with a third filter element 41 is also provided inside the body 30, thereby realizing secondary filtration of the water flow. The water flow first passes through the primary filtration of the first filter element 121 in the first housing 120, and then flows through the mounting member 40, where it undergoes secondary filtration through the third filter element 41. This arrangement, on the one hand, helps to improve the filtration effect. On the other hand, large particles of dirt are retained in the containing space 110a, while small particles of impurities are adsorbed / intercepted on the third filter element 41, thereby helping to improve the cleaning / usage cycle of the third filter element 41.

[0063] Optionally, the first filter element 121 is a filter screen, and the third filter element 41 is a sponge or a high-efficiency particulate air (HEPA) filter. This helps to reduce the cleaning and maintenance costs of the underwater cleaning machine 1.

[0064] In some embodiments, the third filter element can be used directly without the use of mounting components, such as a sponge; in other embodiments, the sponge may also be fixed by mounting components or other parts.

[0065] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An underwater cleaning machine, characterized in that, include: The body is equipped with a water inlet and a water outlet; A filtration device is installed inside the machine body. When the underwater cleaning machine is in cleaning mode, water flows into the machine body through the inlet, is filtered by the filtration device, and is discharged from the outlet. The filtration device includes a first housing arranged along the body direction and a second housing detachably connected to the first housing. The second housing has a receiving space, the first housing closes the opening of the receiving space of the second housing, and the first housing is provided with a first filter element. The second housing is provided with a first opening communicating with the water inlet.

2. The underwater cleaning machine according to claim 1, characterized in that, The second housing is not provided with a filter element, or the second housing is provided with a second filter element at least partially on the side opposite to the first housing.

3. The underwater cleaning machine according to claim 1, characterized in that, The second housing has a filter screen on one end face opposite to the first housing, and a first switch is provided on the side of the filter screen away from the receiving space; When the underwater cleaning machine leaves the water surface, the first switch is in the open state; when the underwater cleaning machine is running underwater / in the water / on the surface, the first switch is in the closed state, and the operation includes cleaning and / or garbage collection.

4. The underwater cleaning machine according to claim 1, characterized in that, The first housing has a plate-like structure; the second housing converges in a direction away from the first housing.

5. The underwater cleaning machine according to claim 4, characterized in that, At least one sidewall of the second housing is a trapezoidal structure.

6. The underwater cleaning machine according to claim 1, characterized in that, The first opening extends away from the water inlet to form a water inlet channel, which extends into the receiving space of the second housing to form a port, and the port is opposite to the bottom wall of the receiving space; The bottom wall is the wall surface of the second housing that is away from the first housing and opposite to the first housing.

7. The underwater cleaning machine according to claim 6, characterized in that, A second switch is provided at the port near the side wall of the first housing. When the underwater cleaning machine is suctioning out dirt, the second switch is in the open state. When the second switch is opened, the communication area between the port and the accommodating space increases.

8. The underwater cleaning machine according to claim 1, characterized in that, The underwater cleaning machine also includes a drive assembly located within the body, with the first housing being closer to the drive assembly than the second housing.

9. The underwater cleaning machine according to claim 1, characterized in that, The underwater cleaning machine also includes a mounting component disposed within the body, the mounting component being located between the first housing and the water outlet; The mounting component is equipped with a third filter element. Water enters through the inlet, is filtered sequentially by the first filter element and the third filter element, and then discharged from the outlet. The filtration accuracy of the third filter element is higher than that of the first filter element.

10. The underwater cleaning machine according to claim 9, characterized in that, The first filter element is a filter screen; The third filter element is a sponge or a high-efficiency particulate filter.

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