Dust box assembly and pool cleaning robot

Abstract

This utility model discloses a dustbin assembly and a water tank cleaning robot. The dustbin assembly includes an inner dustbin and an outer dustbin. The inner dustbin has a mounting part, an inlet channel, a first outlet, and a flange. The outer dustbin has a mounting mating part, an opening, a second outlet, and a second vent. The dustbin assembly has two working states. In the first working state, the inner dustbin is used alone. In the second working state, the inner dustbin is inserted into the outer dustbin, with the mounting part and the mounting mating part engaging to restrict their relative movement. The flange extends to the outer periphery of the outer dustbin wall. This utility model achieves stable switching between the two working states through a detachable combination structure of the inner and outer dustbins. It can flexibly adapt to the needs of different water tanks or different cleaning stages of the same water tank, eliminating the need for replacing the entire dustbin or disassembling the filter, making maintenance convenient and reducing operating costs. It also ensures the structural stability of the dustbin and the reliability of water flow in both states.

Description

Technical Field

[0001] This utility model relates to the field of pool cleaning robot technology, specifically to a dust box assembly and a pool cleaning robot. Background Technology

[0002] The dustbin in a pool cleaning robot serves to filter and collect impurities. Different types of pools require different dustbin sizes to meet varying water quality requirements. Currently, most pool cleaning robots on the market use single, fixed dustbins with relatively fixed filtration precision and functions. However, in actual cleaning scenarios, different types of pools have significantly different dustbin requirements. For example, home swimming pools have relatively clean water, with impurities mainly consisting of small objects like hair, dander, and fine limescale, requiring high-precision filtration. Outdoor landscape pools or fish ponds often contain larger impurities such as fallen leaves, pebbles, and aquatic plants. Using a high-precision filtration dustbin in such cases can easily lead to clogging and reduced filtration efficiency. Therefore, a dustbin that balances filtration efficiency with the capacity to hold larger impurities is needed. Furthermore, the requirements for the same pool also differ at different cleaning stages. Initial cleaning requires handling a large amount of impurities, necessitating a larger dustbin capacity, while routine maintenance focuses more on fine filtration.

[0003] Existing fixed-structure dust boxes are ill-suited to meet these diverse needs. Changing the filtration precision or function requires replacing the entire dust box with one of different specifications, which is not only cumbersome but also increases equipment costs. While some dust boxes feature removable filters, the process is tedious, cleaning, and maintenance are inconvenient, potentially affecting the equipment's continuous operating efficiency. Furthermore, filters often only allow for adjustments to the filtration precision and effect on one side, offering limited control over the overall filtration precision and function of the dust box. Utility Model Content

[0004] To address the aforementioned technical problems, the main objective of this utility model is to provide a dustbin component and a pool cleaning robot that are flexible, adaptable to different cleaning scenarios, easy to maintain, and have a higher degree of functional integration, thereby enhancing the applicability of pool cleaning robots.

[0005] To achieve the above objectives, this utility model proposes a dustbin assembly for a pool cleaning robot, comprising: An inner dust box, wherein a mounting portion is provided on the inner dust box, and an inlet channel and a first outlet are formed on the box wall of the inner dust box, connecting the interior and exterior of the inner dust box; the upper side of the inner dust box has a first opening, and a flange protruding from the outer side of the box wall, surrounding the outer periphery of the first opening; and, An outer dust box is provided with an installation mating part. An opening and a second outlet are formed on the box wall of the outer dust box to connect the inside and outside of the outer dust box. The upper side of the outer dust box has a second opening. The dust box assembly is equipped with filters at least at the first and second outlets. It has a first working state and a second working state. In the first working state, the inner dust box is used alone. In the second working state, the inner dust box is inserted into the outer dust box through the second opening. The mounting part and the mounting mating part cooperate with each other to restrict the relative movement between the outer dust box and the inner dust box. The opening is opposite to the inlet end of the inlet channel. The first outlet and the second outlet are opposite to each other. The flange extends outward to the outer periphery of the outer dust box wall.

[0006] Optionally, the mounting part is a locking block disposed on the outer side of the inner dust box wall, the mounting mating part is a locking groove disposed on the outer dust box wall, and the lower side of the locking block is provided with a guide slope.

[0007] Optionally, the box wall includes a bottom wall disposed on the lower side of the inner dust box, and a guide block is protruding on the inner side of the bottom wall, forming the inlet channel in the guide block.

[0008] Optionally, the inner dust box further includes a movable door component, which is movably mounted on the guide block to have an open state and a closed state. In the open state, the movable door component floats upward under negative pressure and opens the inlet channel. In the closed state, the movable door falls under gravity and covers the upper side of the inlet channel.

[0009] Optionally, the guide block has an upwardly facing mounting surface, the inlet channel passes through the mounting surface, and multiple slots are provided on the mounting surface. The movable door component includes a door panel and multiple buckles. Multiple buckles protrude from the lower side of the door panel, and the multiple buckles are movably inserted into the multiple slots in a one-to-one correspondence. Each buckle is provided with a limit protrusion to limit the upward movement of the movable door component.

[0010] Optionally, the dust box assembly further includes a medicine storage section installed on the outer side of the inner dust box wall and disposed between the inner dust box and the outer dust box.

[0011] Optionally, the medicine storage section is provided with an opening groove facing the inner dust box, and includes a plurality of locking feet extending from the opening groove into the inner dust box. A baffle is provided on the wall of the inner dust box, and a plurality of mounting holes are provided on the baffle. The plurality of locking feet are correspondingly engaged with the plurality of mounting holes, so that a gap is defined between the baffle and the opening groove.

[0012] Optionally, the upper end of the inner dust box is open, and the dust box assembly further includes a sealing ring, which is fixed to the upper side of the flange, and the upper end face of the sealing ring is used to press against the cover plate of the pool cleaning robot.

[0013] To achieve the above objectives, this utility model proposes a pool cleaning robot, comprising: A housing, wherein a flow channel is formed within the housing; A dustbin assembly, disposed in the flow channel, wherein the dustbin assembly is as described above; and... The pump body is disposed in the flow channel and is located downstream of the dust box assembly.

[0014] Optionally, the housing includes a cover plate and a base. The base has an open mounting groove on the upper side. The dust box assembly is detachably disposed in the mounting groove. The cover plate covers the upper side of the base. A guide cylinder protrudes from the bottom wall of the mounting groove into the interior of the mounting groove. The guide cylinder is inserted into the inlet channel and forms a suction port communicating with the outside of the base. A drain port is provided on the side wall of the mounting groove facing the pump body. When the dust box assembly is in a first working state, the first outlet and the drain port are arranged opposite to each other. When the dust box assembly is in a second working state, the first outlet, the second outlet, and the drain port are arranged sequentially.

[0015] The technical solution provided by this utility model has the following beneficial effects: This invention provides a dustbin assembly and a water tank cleaning robot. The dustbin assembly includes an inner dustbin and an outer dustbin. The assembly has two operating states. In the first operating state, the inner dustbin is used alone. Water is drawn in through the inlet channel of the inner dustbin, and impurities in the water are collected inside. The filtered water is discharged from the first outlet. In the second operating state, the inner dustbin is inserted into the outer dustbin through a second opening. The mounting part and the mounting mating part cooperate to restrict the relative movement between the outer and inner dustbins. The opening is opposite to the inlet end of the inlet channel, and the first outlet and the second outlet are opposite to each other. The flange extends outward to the outer periphery of the outer dustbin wall.

[0016] In this embodiment, in the first working state, the inner dust box is installed separately in the pool cleaning robot. Water flows into the inner dust box through the inlet channel, impurities are trapped inside, and the filtered water flows out through the first outlet. In the second working state, the inner dust box is inserted into the outer dust box, and the mounting part and the mounting mating part cooperate to fix their relative positions. Water flows in through the opening of the outer dust box, enters the inner dust box through the inlet channel, and the filtered water flows out through the first outlet and the second outlet in sequence. Thus, the combination design of the inner and outer dust boxes realizes the switching between two working states. It can adapt to different filtration needs without replacing the entire dust box, making operation convenient and reducing operating costs. When the working state needs to be switched, only the operation of removing or inserting the inner dust box is required, making the structure simple and easy to operate. Compared with structures where some filters are removable, this double-layer dust box structure has a significant filtration adjustment effect and does not require cumbersome disassembly and assembly operations. With the dust box assembly provided in this example, the filtration effect of the dust box can be adjusted through simple maintenance operations, enabling the pool cleaning robot to adapt to different cleaning scenarios and / or cleaning stages, improving its applicability and practicality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A three-dimensional structural diagram of an embodiment of the pool cleaning robot provided by this utility model; Figure 2 for Figure 1 A three-dimensional structural diagram of a water tank cleaning robot, where the cover plate is not shown; Figure 3 for Figure 2 A three-dimensional structural exploded view of the water tank cleaning robot; Figure 4 for Figure 3 A three-dimensional structural diagram of the central support body; Figure 5 for Figure 3 A three-dimensional structural diagram of the dust collection box assembly; Figure 6 for Figure 5 A three-dimensional structural diagram of the dust collection box assembly from another perspective; Figure 7 for Figure 6 Exploded view of the three-dimensional structure of the dust collection box assembly; Figure 8 for Figure 7An exploded view of the three-dimensional structure of the inner dust box.

[0019] Explanation of icon numbers: 10-Water tank cleaning robot; 100-Dust box assembly; 110-Inner dust box; 111-Installation section; 1111-Clamping block; 1112-Guide ramp; 112-Inlet channel; 113-First outlet; 114-Guide block; 115-Mounting surface; 1151-Clamping slot; 116-Moving door component; 1161-Door panel; 1162-Snap-on; 117-Baffle; 1171-Mounting port; 118 -Flange; 119-First opening; 120-Outer dust box; 121-Mounting mating part; 1211-Slot; 122-Opening; 123-Second outlet; 124-Second opening; 130-Reagent storage part; 131-Clamping foot; 140-Sealing ring; 200-Housing; 210-Cover plate; 220-Base; 221-Mounting groove; 222-Drain outlet; 223-Guide cylinder; 2231-Suction port.

[0020] The purpose, functional features, and excellent effects of this utility model will be further explained below in conjunction with specific embodiments and accompanying drawings. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are 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 those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] Please refer to Figures 1 to 8. This utility model provides a dustbin assembly 100 and a pool cleaning robot 10 having the same. The pool cleaning robot 10 is designed to efficiently clean various types of pools, such as landscape pools, fish ponds, and especially swimming pools, which are frequently used and have high hygiene requirements. It should be noted that in this utility model, the up-down direction is roughly parallel to the vertical direction. The upstream and downstream refer to the order in which the pump drives the water flow during the cleaning operation of the pool cleaning robot 10. The water flows through the upstream area first after entering the flow channel, and then flows through the downstream area.

[0025] Please see Figures 1 to 3 The pool cleaning robot provided by this utility model includes a housing 200, a dust box assembly 100, and a pump body. A flow channel for water circulation is formed within the housing 200. The dust box assembly 100 is disposed within this flow channel, and the pump body is also disposed within the flow channel and downstream of the dust box assembly 100. When the pool cleaning robot 10 performs cleaning operations, the dust box assembly 100 filters and collects impurities from the water flow, and the pump body provides power for the water flow within the flow channel, allowing water from the pool to be drawn into the housing 200, filtered by the dust box assembly 100, and then flowed back into the pool, thereby achieving pool cleaning.

[0026] Specifically, the housing 200 provides a supporting structure for the entire pool cleaning robot 10, serving to install and protect its internal components. During cleaning operations, the housing 200, dust box assembly 100, and pump body work together to form a complete water circulation and filtration system. When the pump body operates, it generates negative pressure, driving water from the pool into the flow channel within the housing 200. As the water flows through the dust box assembly 100, impurities are trapped, and the filtered water continues to flow within the flow channel and eventually returns to the pool. The dust box assembly 100 is positioned upstream of the pump body, allowing it to filter the water flow first, preventing impurities from entering the pump body and affecting its normal operation.

[0027] Specifically, please refer to Figures 5 to 8 The dust box assembly 100 includes an inner dust box 110 and an outer dust box 120. The inner dust box 110 has a mounting portion 111, and its wall has an inlet channel 112 and a first outlet 113 connecting its interior and exterior. The upper side of the inner dust box 110 has a first opening 119, and the outer side of its wall has a flange 118 protruding around the outer periphery of the first opening 119. The outer dust box 120 has a mounting fitting portion 121, and its wall has an opening 122 and a second outlet 123 connecting its interior and exterior. The upper side of the outer dust box 120 has a second opening 124. It is understood that both the inner dust box 110 and the outer dust box 120 are covered with filter screens, and these filter screens at least cover the first outlet 113 and the second outlet 123, achieving filtration of liquid impurities, retaining solid dirt in the dust box assembly 100, and discharging the filtered liquid outwards.

[0028] The dust box assembly 100 has two working states. In the first working state, the inner dust box 110 is used alone. At this time, water can be drawn in through the inlet channel 112 of the inner dust box 110. Impurities in the water are collected in the inner dust box 110. The water is filtered when it flows through the first outlet 113 and then discharged to the downstream of the dust box assembly 100. In the second working state, the inner dust box 110 is inserted into the outer dust box 120 through the second opening 124. The mounting part 111 and the mounting mating part 121 cooperate with each other to restrict the relative movement between the outer dust box 120 and the inner dust box 110. The opening 122 and the inlet end of the inlet channel 112 are arranged opposite each other, and the first outlet 113 and the second outlet 123 are arranged opposite each other. The flange 118 extends outward to the outer periphery of the box wall of the outer dust box 120. At this time, the water can enter the inner dust box 110 through the opening 122 of the outer dust box 120 and the inlet channel 112 of the inner dust box 110 in sequence. The water flows through the first outlet 113 and the second outlet 123 in sequence, and is discharged after two filtrations, flowing downstream of the dust box assembly 100.

[0029] The mounting part 111 and the mounting mating part 121 cooperate with each other, meaning that the two are connected and fixed through a specific structural design. For example, the mounting part 111 is a protrusion, and the mounting mating part 121 is a groove that matches the protrusion; or the mounting part 111 is a magnet, and the mounting mating part 121 is a metal part that can be attracted by the magnet. The flange 118 can enhance the stability when the inner dust box 110 and the outer dust box 120 are mated. When the inner dust box 110 and the outer dust box 120 are fitted together, it can seal the gap between the two dust boxes and play a certain positioning role.

[0030] In this embodiment, in the first working state, the inner dust box 110 is installed separately in the water tank cleaning robot 10. Water flows into the inner dust box 110 through the inlet channel 112, impurities are trapped inside the inner dust box 110, and the filtered water flows out through the first outlet 113. In the second working state, the inner dust box 110 is inserted into the outer dust box 120. The mounting part 111 and the mounting mating part 121 cooperate to fix their relative positions. Water flows in through the opening 122 of the outer dust box 120, enters the inner dust box 110 through the inlet channel 112, and the filtered water flows out sequentially through the first outlet 113 and the second outlet 123. Thus, through the combined design of the inner dust box 110 and the outer dust box 120, the switching between the two working states is realized. Different filtration needs can be adapted without replacing the entire dust box, making operation convenient and reducing usage costs. At the same time, the structural cooperation between the two working states ensures smooth water flow. When switching between the two working states, only the operation of removing or inserting the inner dust box 110 is required, making the operation simple and efficient. Furthermore, compared to structures with partially detachable filters, this double-layer dustbin structure offers the advantage of significantly improved filtration performance without the need for cumbersome disassembly and assembly. The dustbin assembly 100 provided in this example allows for easy adjustment of the dustbin's filtration efficiency through simple maintenance, enabling it to adapt to different cleaning scenarios and / or stages, thus enhancing the applicability and practicality of the pool cleaning robot 10.

[0031] For further information, please refer to [link / reference]. Figure 3 and Figure 4 The housing 200 includes a cover plate 210 and a base 220. The base 220 has an upper open mounting groove 221. The dust box assembly 100 is detachably installed in the mounting groove 221. The cover plate 210 covers the upper side of the base 220. The bottom wall of the mounting groove 221 has a guide cylinder 223 protruding into the interior of the mounting groove 221. The guide cylinder 223 is inserted into the inlet channel 112. The lower end of the guide cylinder 223 forms a suction port 2231 that connects to the outside of the base 220. The mounting groove 221 has a drain port 222 on the side wall facing the pump body. When the dust box assembly 100 is in the first working state, the first outlet 113 and the drain port 222 are opposite to each other. When the dust box assembly 100 is in the second working state, the first outlet 113, the second outlet 123 and the drain port 222 are sequentially connected. The guide cylinder 223 serves two purposes: firstly, it guides the installation of the dust box assembly 100, ensuring accurate installation; secondly, the suction port 2231 formed by the guide cylinder 223 introduces water from the water tank into the dust box assembly 100. The length and diameter of the guide cylinder 223 can be adjusted to fit the dust box assembly 100 according to actual needs.

[0032] In this embodiment, when installing the dust box assembly 100, simply open the cover plate 210, place the dust box into the mounting groove 221, and insert the guide cylinder 223 inside the mounting groove 221 into the inlet channel 112 of the inner dust box 110 to achieve positioning and installation of the dust box assembly 100. Then, close the cover plate 210 to complete the fixation. Thus, the structural design of the housing 200 facilitates the installation and disassembly of the dust box assembly 100. The guide cylinder 223 ensures the accuracy of the dust box assembly 100 installation. The cooperation between the drain outlet 222 and the outlet of the dust box assembly 100 ensures that water flows smoothly from the dust box assembly 100 to the pump body when the pool cleaning robot 10 is working, improving the working stability of the pool cleaning robot 10. It also ensures that when maintaining the pool cleaning robot 10, water can be discharged from the drain outlet 222 when the dust box assembly 100 is lifted for cleaning, making it easy for the user to lift the dust box assembly 100 for subsequent cleaning and maintenance.

[0033] Furthermore, such as Figure 7 As shown, the mounting part 111 is a locking block 1111 located on the outer side of the inner dust box 110, and the mounting mating part 121 is a slot 1211 located on the outer dust box 120. A guide slope 1112 is provided on the lower side of the locking block 1111. The locking block 1111 can be engaged in the slot 1211, achieving relative fixation between the inner dust box 110 and the outer dust box 120. The guide slope 1112 makes it easier for the locking block 1111 to slide into the slot 1211, reducing installation difficulty. The number of locking blocks 1111 and slots 1211 can be set according to actual needs; for example, a set of locking blocks 1111 and slots 1211 can be provided on each opposite side of the dust box to enhance the fixing effect.

[0034] In this embodiment, when the inner dust box 110 needs to be inserted into the outer dust box 120 to switch to the second working state, the inner dust box 110 moves downward under the action of external force. The guide slope 1112 of the locking block 1111 contacts the box wall of the outer dust box 120. As the inner dust box 110 continues to move downward, the guide slope 1112 is squeezed, causing the locking block 1111 to undergo a certain elastic deformation. When the locking block 1111 moves to the position of the slot 1211, the locking block 1111 elastically resets and locks into the slot 1211, thus fixing the inner dust box 110 and the outer dust box 120. When it is necessary to separate the two, an external force is applied to make the locking block 1111 disengage from the slot 1211. The cooperation structure of the locking block 1111 and the slot 1211 is simple, and the installation and disassembly are convenient. The setting of the guide slope 1112 further improves the convenience of operation and ensures the stable cooperation between the inner dust box 110 and the outer dust box 120 in the second working state.

[0035] Furthermore, the box wall includes a bottom wall disposed on the lower side of the inner dust box 110, and a guide block 114 protrudes from the inner side of the bottom wall, forming an inlet channel 112 in the guide block 114. The shape of the guide block 114 can be designed according to the direction of the inlet channel 112. The arrangement of the guide block 114 provides a structural basis for the formation of the inlet channel 112. At the same time, the guide block 114 protrudes from the inner side of the bottom wall and can guide the water flow entering the inner dust box 110, allowing the water flow to enter the inner dust box 110 more smoothly. The arrangement of the guide block 114 not only forms the inlet channel 112 and guides the water flow, but also cooperates with the guide cylinder 223 in the base 220 to play a limiting and guiding role, so that the dust box assembly 100 can be firmly fixed to the base 220.

[0036] Please see Figure 7 and Figure 8 The inner dust box 110 also includes a movable door component 116, which is movably mounted on the guide block 114 to have an open state and a closed state. In the open state, the pump of the water tank cleaning robot 10 generates negative pressure, and the movable door component 116 floats upward under the negative pressure, thereby opening the inlet channel 112, allowing water in the water tank to smoothly enter the inner dust box 110 through the inlet channel 112. In the closed state, the pump stops working, the negative pressure disappears, and the movable door component 116 falls under its own gravity, covering the upper side of the inlet channel 112 to prevent impurities collected in the inner dust box 110 from leaking out of the inlet channel 112. Preferably, the movable door component 116 is made of materials such as rubber and silicone to improve its sealing performance to the inlet channel 112. This embodiment is based on a passive control logic of "negative pressure drive + gravity reset", which can realize the automatic opening and closing of the inlet channel without additional manual or electric operation. The structure is simple and reliable, and it is linked with the working state of the pump.

[0037] Furthermore, the guide block 114 has an upward-facing mounting surface 115, through which the inlet channel 112 passes to form a doorway. Multiple latches 1151 are provided on the mounting surface 115. The movable door component 116 includes a door panel 1161 and multiple latches 1162. Multiple latches 1162 protrude from the lower side of the door panel 1161, and each latch 1162 is movably inserted into one of the latches 1151, allowing the movable door component 116 to be movably assembled onto the guide block 114. When the movable door 116 falls, the door panel 1161 precisely covers the upper end of the inlet channel 112, effectively sealing the inlet channel. In addition, each latch 1162 is provided with a limiting protrusion, which can abut against the edge of the latch 1151 to limit the upward movement of the movable door component 116 and prevent it from floating excessively upward under negative pressure and detaching from the guide block 114. In this way, the assembly of the movable door 116 is achieved through a simple structure, which is simple in structure and low in production cost.

[0038] Based on the above embodiments, such as Figure 7 and Figure 8 As shown, the dust box assembly 100 also includes a chemical storage section 130 installed on the outer wall of the inner dust box 110 and disposed between the inner dust box 110 and the outer dust box 120. The chemical storage section 130 is a component for storing cleaning agents (such as disinfectants, algaecides, etc.), and can be a box with a accommodating space. The chemical storage section 130 is located between the inner dust box 110 and the outer dust box 120. When water flows through this area, the chemicals in the chemical storage section 130 dissolve in the water and enter the water tank with the water flow, thus improving water quality. The capacity of the chemical storage section 130 can be designed according to actual needs to adapt to different usage cycles.

[0039] Furthermore, the medicine storage section 130 is provided with an opening 122 facing the inner dust box 110, and includes multiple retaining feet 131 extending from the opening 122 into the inner dust box 110. A baffle 117 is provided on the wall of the inner dust box 110, and the baffle 117 has multiple mounting holes 1171. The multiple retaining feet 131 are correspondingly engaged with the mounting holes 1171, thus defining a gap between the baffle 117 and the opening 122. The opening 122 provides space for storing medicine, and the engagement of the retaining feet 131 with the mounting holes 1171 achieves a fixed connection between the medicine storage section 130 and the inner dust box 110. The gap between the baffle 117 and the opening 122 allows water to flow through this gap and contact the medicine in the opening 122, promoting the dissolution of the medicine.

[0040] In this embodiment, when installing the agent storage section 130, cleaning agent is first placed in the slot of opening 122, and its locking feet 131 are inserted one-to-one into the mounting openings 1171 on the baffle 117 of the inner dust box 110, thus fixing the agent storage section 130 to the outside of the inner dust box 110. When water flows between the inner dust box 110 and the outer dust box 120, it comes into contact with the agent through the gap between the baffle 117 and the slot of opening 122. After dissolving, the agent enters the water tank with the water flow. The beneficial effect of this embodiment is that the cooperation between the locking feet 131 and the mounting openings 1171 achieves a stable installation of the agent storage section 130. The formation of the gap ensures sufficient contact between the agent and the water flow, improving the utilization rate of the agent. At the same time, the structural design is simple and easy to install and maintain.

[0041] Based on the above embodiments, the upper end of the inner dust box 110 is open, and the dust box assembly 100 also includes a sealing ring 140. The sealing ring 140 is fixed to the upper side of the flange 118, and the upper end face of the sealing ring 140 is used to press against the cover plate 210 of the pool cleaning robot 10. Preferably, an annular groove is formed on the upper end side of the dust box wall, and the sealing ring 140 is detachably inserted into the annular groove. It is usually made of an elastic material (such as rubber) so as to fix it to the inner dust box by its elasticity. After the dust box assembly 100 is installed on the pool cleaning robot 10, a seal is formed by the pressing of the sealing ring 140 against the cover plate 210 to prevent water from leaking from the gap between the dust box assembly 100 and the cover plate 210.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A dustbin assembly for a pool cleaning robot, characterized in that, include: An inner dust box, wherein a mounting portion is provided on the inner dust box, and an inlet channel and a first outlet are formed on the box wall of the inner dust box, connecting the interior and exterior of the inner dust box; the upper side of the inner dust box has a first opening, and a flange protruding from the outer side of the box wall, surrounding the outer periphery of the first opening; and, An outer dust box is provided with an installation mating part. An opening and a second outlet are formed on the box wall of the outer dust box to connect the inside and outside of the outer dust box. The upper side of the outer dust box has a second opening. The dust box assembly is equipped with filters at least at the first and second outlets. It has a first working state and a second working state. In the first working state, the inner dust box is used alone. In the second working state, the inner dust box is inserted into the outer dust box through the second opening. The mounting part and the mounting mating part cooperate with each other to restrict the relative movement between the outer dust box and the inner dust box. The opening is opposite to the inlet end of the inlet channel. The first outlet and the second outlet are opposite to each other. The flange extends outward to the outer periphery of the outer dust box wall.

2. The dustbin assembly as claimed in claim 1, characterized in that, The mounting part is a locking block located on the outer side of the inner dust box wall, and the mounting mating part is a locking groove located on the outer dust box wall. A guide slope is provided on the lower side of the locking block.

3. The dustbin assembly as described in claim 2, characterized in that, The box wall includes a bottom wall disposed on the lower side of the inner dust box, and a guide block is protruding on the inner side of the bottom wall, forming the inlet channel in the guide block.

4. The dustbin assembly as described in claim 3, characterized in that, The inner dust box also includes a movable door component, which is movably mounted on the guide block to have an open state and a closed state. In the open state, the movable door component floats upward under negative pressure and opens the inlet channel. In the closed state, the movable door falls down under gravity and covers the upper side of the inlet channel.

5. The dustbin assembly as described in claim 4, characterized in that, The guide block has an upward-facing mounting surface, the inlet channel passes through the mounting surface, and multiple slots are provided on the mounting surface. The movable door component includes a door panel and multiple buckles. Multiple buckles protrude from the lower side of the door panel, and the multiple buckles are movably inserted into the multiple slots in a one-to-one correspondence. Each buckle is provided with a limit protrusion to limit the upward movement of the movable door component.

6. The dustbin assembly as described in any one of claims 1 to 5, characterized in that, The dust box assembly also includes a medicine storage section installed on the outer side of the inner dust box wall and disposed between the inner dust box and the outer dust box.

7. The dustbin assembly as claimed in claim 6, characterized in that, The medicine storage section is provided with an opening slot facing the inner dust box, and includes a plurality of locking feet extending from the opening slot toward the inner dust box. A baffle is provided on the wall of the inner dust box, and a plurality of mounting holes are provided on the baffle. The plurality of locking feet are inserted into the plurality of mounting holes in a corresponding manner, so that a gap is defined between the baffle and the opening slot.

8. The dustbin assembly as claimed in any one of claims 1 to 5, characterized in that, The upper end of the inner dust box is open. The dust box assembly also includes a sealing ring, which is fixed to the upper side of the flange. The upper end face of the sealing ring is used to press against the cover plate of the water tank cleaning robot.

9. A pool cleaning robot, characterized in that, include: A housing, wherein a flow channel is formed within the housing; A dustbin assembly disposed in the flow channel, the dustbin assembly being the dustbin assembly as described in any one of claims 1 to 8; and... The pump body is disposed in the flow channel and is located downstream of the dust box assembly.

10. The pool cleaning robot as described in claim 9, characterized in that, The housing includes a cover plate and a base. The base has an open mounting groove on the upper side. The dust box assembly is detachably disposed in the mounting groove. The cover plate covers the upper side of the base. A guide cylinder protrudes from the bottom wall of the mounting groove into the interior of the mounting groove. The guide cylinder is inserted into the inlet channel and forms a suction port communicating with the outside of the base. A drain port is provided on the side wall of the mounting groove facing the pump body. When the dust box assembly is in a first working state, the first outlet and the drain port are arranged opposite to each other. When the dust box assembly is in a second working state, the first outlet, the second outlet, and the drain port are arranged sequentially.

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