A pool cleaning machine

Abstract

The application discloses a pool cleaning machine, belonging to the technical field of pool cleaning, comprising a shell, a walking device and a filter screen, the filter screen divides the space in the shell into a water inlet cavity and a water outlet cavity, the water inlet cavity is communicated with a water inlet, two groups of power components with opposite driving directions are arranged in the water outlet cavity, the power component comprises an impeller and a water outlet flow channel, the water outlet flow channel comprises a spiral part and a straight flow part communicated in sequence, the inlet of the impeller is communicated with the water outlet cavity, the outlet of the impeller is communicated with the spiral part, the straight flow part is connected with a water outlet, the straight flow part is deflected to the outside of the spiral direction of the spiral part, a turning force receiving part is formed at the junction of the straight flow part and the spiral part, and the water outlet is communicated with the outside of the shell and opposite to the advancing direction of the walking device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pool cleaning, in particular to a pool cleaning machine. BACKGROUND

[0002] Dust, impurities, garbage and the like often enter the pool, causing pollution to the pool environment and affecting the experience of players. Therefore, the pool needs to be cleaned regularly. Currently, manual cleaning is mostly used for pool cleaning, but there are problems such as inconvenience of cleaning and waste of human resources. There are also underwater robots for cleaning the ground of the pool on the market. The underwater robot for cleaning the pool can save manpower and clean more thoroughly than manual cleaning. Therefore, it is a development trend to use a pool cleaning robot to replace manual cleaning of the pool.

[0003] When using a pool cleaning robot to clean the pool, the key to achieving a dead angle cleaning effect is to design a good cleaning route for the pool cleaning robot. A path planning method and device for a pool cleaning robot are disclosed in Chinese Patent No. CN114895691B. The robot detects the target and the walking path by setting multiple control units, and determines the current position and the position to be moved by electronic means. This scheme can accurately control the walking position of the robot through path planning, and meets the purpose of cleaning each part of the pool. However, the setting of too many control units and electronic elements significantly increases the cost, which is not conducive to popularization and use. Moreover, electrically controlled walking direction obviously increases the complexity of the structure, and increases the failure rate while increasing the cost.

[0004] For example, Chinese Patent No. CN114233063A discloses a pool cleaning robot and a turning method, which includes a cleaning robot main body, an angle sensor, a gyroscope sensor and an acceleration sensor arranged inside the cleaning robot main body, and a sonar one and a sonar two fixed on the advancing side of the cleaning robot main body. This scheme sets precise electronic elements, and does not need to plan the path, so it can be used directly in the pool. However, like the aforementioned patent with the authorization announcement number CN114895691B, a large number of electronic elements are used, resulting in an increase in cost, and the turning system is also relatively complex.

[0005] In summary, the route control of the pool robot in the prior art often uses path planning or electronic element recognition control, which undoubtedly increases the complexity of the control system and the turning system, and uses electronic elements with high prices, which is not conducive to cost control. Therefore, how to better realize the walking of the pool robot on the basis of simple structure and low cost is a technical problem existing in the field. SUMMARY

[0006] The present application aims to provide a pool cleaner to solve the problems existing in the prior art, by designing the water outlet channel in the form of a spiral part and a straight part, a turning force receiving part is formed between the two parts, while the water in the pool is filtered, the water flow is used to impact the turning force receiving part, so that the pool cleaner can be deflected to the impact direction, and finally a zigzag running route is formed, without setting additional turning and state monitoring electronic components, the cost can be reduced.

[0007] To achieve the above-mentioned purpose, the present application provides the following scheme:

[0008] The present application provides a pool cleaner, which comprises a shell, a walking device arranged at the bottom of the shell, and a filter screen arranged in the shell, the filter screen divides the space in the shell into a water inlet cavity and a water outlet cavity, the water inlet cavity is communicated with a water inlet at the bottom of the shell, two groups of power components with opposite driving directions are arranged in the water outlet cavity, the power components comprise an impeller and a water outlet channel, the water outlet channel comprises a spiral part and a straight part communicated in sequence, the inlet of the impeller is communicated with the water outlet cavity, the outlet of the impeller is communicated with the spiral part, the straight part is connected with a water outlet, the straight part is deflected to the outside of the spiral direction, a turning force receiving part is formed at the junction of the straight part and the spiral part, and the water outlet is communicated with the outside of the shell and opposite to the running direction of the walking device.

[0009] Preferably, the water inlet is located at the right side of the running direction of the walking device, the turning force receiving part is subjected to a counterclockwise deflection force, or the water inlet is located at the left side of the running direction of the walking device, and the turning force receiving part is subjected to a clockwise deflection force; a scraper is arranged at the rear side of the water inlet.

[0010] Preferably, the walking device comprises a walking wheel, the walking wheel is rotatably installed on a wheel frame through an axle, a positioning block and an annular groove are arranged at the top end of the wheel frame, a positioning groove corresponding to the positioning block and a first buckle corresponding to the annular groove are arranged on the shell, the first buckle is clamped into the annular groove to fix the wheel frame; a large through hole and a small through hole are arranged on the wheel frame for penetrating the axle, the axle comprises a small diameter part and a large diameter part connected with each other, the diameter of the small diameter part is smaller than that of the small through hole, and the diameter of the large diameter part is between that of the small through hole and that of the large through hole.

[0011] Preferably, the walking wheels are distributed in a cross shape at the bottom of the shell, the gravity centers of the walking wheels at the front side and the rear side are offset, and the gravity centers are offset to one side of the water inlet.

[0012] Preferably, a shunt plate parallel to the extending direction of the straight flow part is arranged in the straight flow part, the water outlet is in a flared structure, and the water outlet is hingedly provided with an outward-opening baffle, and the hinge position is located at the upper part of the outward-opening baffle, and the outward-opening baffle closes the water outlet by gravity when there is no water flow impact.

[0013] Preferably, a touch-wall sensing assembly is arranged on the shell, the touch-wall sensing assembly comprises a swing member rotatably arranged on the shell and a Hall sensing probe fixedly arranged on the shell, the swing member comprises a rotating part, a resistance plate connected to the rotating part, and a magnet seat, a magnet is arranged on the magnet seat, the resistance plate is located in a front-rear through touch-wall detection water channel, when the resistance plate is affected by water flow, the magnet is deflected to be away from the Hall sensing probe, and when the resistance plate is not affected by water flow, the magnet corresponds to the Hall sensing probe.

[0014] Preferably, an arc-shaped groove is arranged, center shafts are rotatably arranged on the two side walls of the arc-shaped groove, the rotating part is rotatably sleeved on the center shafts, shaft shoulders are arranged at the two ends of the center shafts respectively, the two shaft shoulders are rotatably clamped on the two side walls of the arc-shaped groove, and the distance between the two shaft shoulders is greater than the axial width of the swing member.

[0015] Preferably, the magnet seat comprises a swing arm connected to the rotating part on the side close to the Hall sensing probe and a magnet mounting portion connected to the swing arm, the water-approaching surface of the swing arm is wedge-shaped, the magnet mounting portion is provided with the magnet on the side close to the Hall sensing probe and is provided with a first counterweight on the side away from the Hall sensing probe.

[0016] Preferably, the water inlet is hingedly provided with an inward-opening baffle, the inward-opening baffle is connected to a limiting portion, the opening angle of the inward-opening baffle is limited to be less than ninety degrees by the limiting portion, and the inward-opening baffle closes the water inlet by gravity when there is no water flow impact.

[0017] Preferably, a U-shaped handle is arranged on the top of the shell, the two legs of the U-shaped handle are hingedly arranged on the shell, and the top of the U-shaped handle is hollow and sealed by a handle cover plate.

[0018] The present application has the following technical effects compared with the prior art:

[0019] (1) The water outlet flow channel is designed in the form of a spiral part and a straight flow part, so that a turning force receiving part can be formed between the two parts, water flow is used to form impact on the turning force receiving part when the water in the swimming pool is extracted and filtered, so that the swimming pool cleaner can be deflected in the impact direction, and finally a zigzag running route is formed, without the need to arrange additional turning and state monitoring electronic elements, thereby reducing the complexity of the structure and the manufacturing cost;

[0020] (2) The present application is distinguished according to the setting position of the water inlet, when the water inlet is set on the right side, it matches counterclockwise deflection, when the water inlet is set on the left side, it matches clockwise deflection, no matter which form is adopted, it can make the water inlet located on the outer diameter side of the deflection radian, and the back side of the water inlet is also provided with a scraper, which can better clean the dirt on the pool floor by using the scraper and the relationship between the above water inlet and the running direction;

[0021] (3) The walking wheels of the present application are cross-distributed on the outer bottom of the shell, the gravity centers of the walking wheels on the front side and the back side are offset, and the gravity centers are offset to one side of the water inlet, when the pool cleaner is running, the water inlet side can be better supported due to the relatively large resistance on the water inlet side, and the deflection resistance caused by the walking wheels can be reduced under the action of the deflection force of the turning force receiving part, so that better deflection is realized, and the micro-arc line of the pool cleaner operation is maintained;

[0022] (4) The present application forms a one-stage rotation connection between the rotating part of the swing member and the central shaft, and forms a one-stage rotation connection between the central shaft and the arc-shaped groove, so that a two-stage rotation connection is formed, when one stage of rotation is affected by debris and cannot rotate, the other stage of rotation can be used to avoid the swing member from being stuck, and the stable operation of the wall touch sensing assembly is ensured; in addition, the distance between the two shaft shoulders of the central shaft is greater than the axial width of the swing member, which can support the two side walls of the arc-shaped groove when the arc-shaped groove is deformed and shrinks, avoid the two side walls of the arc-shaped groove affecting the swing of the swing member, and further improve the reliability of the wall touch sensing assembly in operation;

[0023] (5) The present application sets the swing arm on the side close to the Hall induction probe, which can ensure the stability of the distance between the magnet and the Hall induction probe, avoid the deformation of the swing arm and other factors causing misalignment between the two, and affect the accuracy of the wall touch sensing assembly; at the same time, the water-facing surface of the swing arm is wedge-shaped, which can further reduce the swing resistance and improve the reliability of the wall touch sensing assembly;

[0024] (6) The present application blocks the water inlet by the inner opening type baffle, which can smoothly pass the water through the water inlet into the water inlet cavity when pumping, and can limit the opening angle of the inner opening type baffle by the limiting part, avoid the opening being too large to close the water inlet by gravity, and cause the filtered dirt in the water inlet cavity to be discharged again, so as to ensure the smooth progress of the cleaning process;

[0025] (7) The present application is provided with a U-shaped handle on the top of the shell, the top of the U-shaped handle has a hollow part, which can naturally float vertically in water, when it is necessary to take out for charging or maintenance, the U-shaped handle can be clamped by a tool to grab the pool cleaner on the bottom of the pool, improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the front structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the bottom structure of the present invention;

[0029] Figure 3 for Figure 1 The cutaway shows a schematic diagram of the water channel structure;

[0030] Figure 4 for Figure 3 Top view;

[0031] Figure 5 This is a schematic diagram of the structure of the present invention after the upper shell is removed;

[0032] Figure 6 for Figure 5 Schematic diagram of the structure after removing the control cabin cover;

[0033] Figure 7 This is a schematic diagram of the explosion structure of the U-shaped handle of the present invention;

[0034] Figure 8 This is a schematic diagram of the internal structure of the upper shell of the present invention;

[0035] Figure 9 This is a schematic diagram of the structure of the integrated grid plate of the present invention;

[0036] Figure 10 This is a schematic diagram of the arc groove structure of the present invention;

[0037] Figure 11 This is a partial structural diagram of the wall-touch sensing component of the present invention;

[0038] Figure 12 This is a schematic diagram of the structure of the swing member of the present invention;

[0039] Figure 13 This is a schematic structural diagram of the walking device of the present invention;

[0040] Figure 14 for Figure 13 Schematic diagram of the cross-section structure;

[0041] Figure 15It is the inside structure schematic view of the lower shell of the application;

[0042] Figure 16 It is the inside structure schematic view of the lower shell of the application;

[0043] Figure 17 It is the inside structure schematic view of the lower shell of the application;

[0044] Figure 18 It is the inside structure schematic view of the lower shell of the application;

[0045] Wherein, 1, upper shell; 11, second buckle; 12, indicator light; 13, switch; 14, U-shaped handle; 141, handle cover plate; 15, water outlet flow channel; 151, flow distribution plate; 152, spiral part; 153, straight flow part; 154, turning force receiving part; 16, touch wall detection water channel; 2, lower shell; 21, water inlet; 22, scraper; 23, charging port; 24, inside opening baffle; 241, limiting part; 25, first buckle; 26, positioning groove; 3, walking device; 31, wheel shaft; 32, walking wheel; 33, wheel frame; 331, annular groove; 332, positioning block; 4, integrated grating plate; 41, protective grating; 42, water outlet; 43, partition plate; 44, outside opening baffle; 5, impeller; 51, inlet; 52, outlet; 6, touch wall sensing assembly; 61, arc-shaped groove; 62, swing piece; 621, resistance plate; 622, turning part; 623, swing arm; 624, magnet mounting part; 63, central shaft; 7, filter screen; 8, control cabin; 81, battery; 82, motor; 83, Hall inductive probe; 84, liquid level probe; 85, control cabin cover plate; 9, second counterweight. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the application will be apparently and completely described below with the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the application.

[0047] The purpose of the application is to provide a swimming pool cleaner to solve the problems in the prior art. The water outlet flow channel is designed in the form of spiral part and straight flow part, so that the turning force receiving part is formed between the two parts. The water flow is used to impact the turning force receiving part when the water in the swimming pool is extracted and filtered, so that the swimming pool cleaner can be deflected in the impact direction, and finally a zigzag running route is formed. No additional turning and state monitoring electronic elements are needed, and the cost can be reduced.

[0048] In order to make the above objectives, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0049] As shown in Figures 1-18 The present application provides a pool cleaner, which comprises a shell, a walking device 3 arranged at the bottom of the shell and a filter screen 7 arranged in the shell. The shell can be in a split form, which is convenient for disassembly and installation connection. After disassembly, the installation of internal components and the cleaning of dirt and impurities are facilitated. For example, the shell can comprise an upper shell 1 and a lower shell 2, and the upper shell 1 and the lower shell 2 are connected by a second buckle 11. When disassembled, the second buckle 11 can be disconnected by being pulled outward. The installation and disassembly are relatively convenient. The walking device 3 adopts a rotatable ground walking structure such as a roller or a roller. The filter screen 7 divides the space in the shell into a water inlet cavity and a water outlet cavity. The water inlet cavity is connected to a water inlet 21 at the bottom of the shell, and the water outlet cavity is connected to a water outlet 42. Under the action of an impeller 5, the water in the pool enters the water inlet cavity through the water inlet 21, and under the action of the filter screen 7, impurities are retained in the water inlet cavity, and the water passing through the filter screen 7 enters the water outlet cavity. Two groups of power components with opposite driving directions are arranged in the water outlet cavity. When different power components are operated, the pool cleaner can be driven to move in opposite directions. Specifically, the power components comprise the impeller 5 and an outlet flow channel 15. The inlet 51 of the impeller 5 is connected to the water outlet cavity, the outlet 52 of the impeller 5 is connected to the outlet flow channel 15, and the water in the water outlet cavity can flow into the outlet flow channel 15 under the action of the impeller 5. The outlet flow channel 15 comprises a spiral part 152 and a straight part 153 connected in sequence. The straight part 153 is connected to the water outlet 42, and the water flowing into the outlet flow channel 15 is discharged from the pool cleaner through the water outlet 42. Referring to Figure 4As shown, the direct current portion 153 deflects outward from the spiral portion 152 in the spiral direction, forming a deflection force receiving portion 154 at the junction of the direct current portion 153 and the spiral portion 152. The water flowing out of the spiral portion 152 impacts the deflection force receiving portion 154 and is then forced to deflect and flow toward the direct current portion 153. This exerts a force on the deflection force receiving portion 154 in the spiral direction of the spiral portion 152, which drives the pool cleaner to deflect and turn to a certain degree. The water outlet 42 opens to the exterior of the housing, and its water outlet direction is opposite to the direction of travel of the running device 3. In this way, the reaction force of the water discharged from the water outlet 42 can be used to drive the pool cleaner forward. Because the pool cleaner is subjected to both the steering thrust of the steering force-bearing portion 154 and the travel thrust of the water discharged from the outlet 42, the pool cleaner can now move toward the left front or right front. By controlling the operation of different power components, different travel directions can be controlled, thereby forming a zigzag travel path within the swimming pool, covering the bottom area of ​​the swimming pool and performing a more thorough cleaning of the swimming pool. In summary, the present invention, by designing the outlet flow channel 15 to have a spiral portion 152 and a straight portion 153, can form a steering force-bearing portion 154 between the two. While extracting and filtering the water in the swimming pool, the flowing water is used to impact the steering force-bearing portion 154, thereby causing the pool cleaner to deflect in the impact direction, ultimately forming a zigzag travel path. No additional electronic components such as steering and status monitoring are required, thereby reducing the complexity of the structure and lowering the manufacturing cost.

[0050] Combine Figure 2 As shown, the water inlet 21 is located on the right side of the traveling direction of the walking device 3, and combined with Figure 4 As shown, the steering force-bearing portion 154 is subjected to a counterclockwise deflection force, in which case the pool cleaner moves toward the left front. Alternatively, there is another form, not shown in the figure, in which the water inlet 21 is located to the left of the travel direction of the running device 3, and the steering force-bearing portion 154 is subjected to a clockwise deflection force, in which case the pool cleaner moves toward the right front. By matching the counterclockwise deflection of the water inlet 21 on the right side and the clockwise deflection of the water inlet 21 on the left side (not shown in the figure), the water inlet 21 can be positioned on the outer diameter of the deflection arc. In addition, a scraper 22 is also provided on the rear side of the water inlet 21. The scraper 22 and the relationship between the water inlet 21 and the travel direction can be utilized to better clean dirt from the pool floor. Alternatively, the water inlet 21 can be formed into an elongated opening, with the scraper 22 parallel to the length of the water inlet 21 and slightly longer than the length of the water inlet 21, thereby covering a larger cleaning area and better collecting dirt for suction by the water inlet 21.

[0051] like Figures 1-2 、 Figures 13-14As shown, the walking device 3 comprises walking wheels 32, which are rotatably installed on a wheel frame 33 through an axle 31, and the top end of the wheel frame 33 is provided with a positioning block 332 and an annular groove 331, and the shell (lower shell 2) is provided with a positioning groove 26 corresponding to the positioning block 332 and a first buckle 25 corresponding to the annular groove 331, after the positioning block 332 is clamped into the positioning groove 26, the first buckle 25 can be clamped into the annular groove 331 to fix the wheel frame 33. Two positioning grooves 26 are provided on the lower shell 2 at symmetrical positions, so that the installation direction of the walking device 3 can be changed, and the installation can be facilitated according to the different direction requirements of the walking device 3. The position where the wheel frame 33 is installed with the walking wheels 32 has a U-shaped groove, two branches of the U-shaped groove are respectively provided with a large hole and a small hole for penetrating the axle 31, and the axle 31 is provided in a structure comprising a small-diameter part and a large-diameter part connected to each other, the diameter of the small-diameter part is smaller than that of the small hole, that is, the small-diameter part can smoothly pass through the small hole, and the diameter of the large-diameter part is between that of the small hole and that of the large hole, that is, the large-diameter part can smoothly pass through the large hole but cannot pass through the small hole, so that when the axle 31 is installed, it can only be installed in one way, thereby ensuring the uniformity when different walking devices 3 are installed.

[0052] The small-diameter part can comprise two oppositely arranged elastic strips and a clamping joint connected to the free end of the elastic strip, and the two elastic strips have a deformation joint therebetween, which can reduce the overall diameter of the clamping joint when the two elastic strips deform by moving close to each other, so that the overall diameter of the clamping joint is smaller than that of the small hole, thereby facilitating the clamping joint to pass through the small hole, and the clamping joint after passing through the small hole returns to a free state, and the overall diameter of the clamping joint in the free state is larger than that of the small hole, thereby achieving the limiting of the axle 31 and avoiding the axle 31 from being separated along the original path. The large-diameter part can be a cross-shaped shaft, one end of the cross-shaped shaft is connected to the small-diameter part, and the other end of the cross-shaped shaft is connected to a limiting plate, and the clamping joint and the limiting plate are located on the two sides of the wheel frame 33, thereby limiting the axle 31 on the wheel frame 33.

[0053] In combination Figure 2 As shown, the walking wheels 32 are distributed in a cross shape on the outer bottom of the shell (lower shell 2), the walking wheels 32 on the left side and the right side are symmetrically arranged, the walking wheels 32 on the front side and the back side are biased in the center of gravity, and the center of gravity is biased to one side of the water inlet 21. When the pool cleaner is running, it will be subjected to a deflection force of the turning force receiving part 154, based on the walking mode of the pool cleaner and the cleaning action mode of the water inlet 21 and the scraper 22 thereof, the resistance on one side of the water inlet 21 will be relatively large, and through the center-biased mode, the one side of the water inlet 21 can be better supported, and at the same time, under the action of the deflection force of the turning force receiving part 154, the deflection resistance caused by the walking wheels 32 can be reduced, the deflection can be better realized, further, the position of the center of gravity of the walking wheels 32 can be coupled with the stress condition of the turning force receiving part 154 for analysis, and reasonable design can be performed, thereby ensuring that the pool cleaner runs in a micro-arc line, improving the coverage effect of cleaning the pool, and realizing dead-angle-free cleaning.

[0054] As shown in Figure 3 and Figure 4 , the direct current part 153 is provided with a flow dividing plate 151 parallel to the extending direction thereof, which can divide the water flow and play a role of turbulence, and also can form an effective support structure to keep the water outlet 15 unobstructed and stable in structure. The water outlet 42 adopts a flared structure to facilitate the diffusion of water flow. Figure 1 and Figure 9 , the water outlet 42 is hingedly provided with an outer opening type baffle 44, and the hinged position is located at the upper part of the outer opening type baffle 44. Since the water outlets 42 arranged in opposite directions do not work at the same time, when the water outlet 42 is in a working state, the water flow impact will impact the outer opening type baffle 44 to open, realizing the through of the water outlet 42, and when the water outlet 42 is not in a working state, there is no water flow impact, and the outer opening type baffle 44 relies on the dead weight to close the water outlet 42.

[0055] As shown in Figures 3-6 , Figures 10-12 , the shell (upper shell 1) is provided with a touch wall sensing assembly 6, which includes a swing member 62 rotatably arranged on the upper shell 1 and a Hall sensing probe 83 fixedly arranged on the lower shell 2. The Hall sensing probe 83 can detect the position state of the swing member 62 to determine whether the pool cleaner touches the wall and send corresponding control signals to control different power components to operate and change the running direction. The swing member 62 includes a rotating part 622, a resistance plate 621 and a magnet seat connected to the rotating part 622. When the resistance plate 621 is impacted by water flow, the swing position around the rotating part 622 can be changed. The magnet seat is provided with a magnet, and the swing of the resistance plate 621 can change the position of the magnet relative to the Hall sensing probe 83. The resistance plate 621 is located in the front and rear through touch wall detection water channel 16. When the pool cleaner runs, water flow will pass through the touch wall detection water channel 16. At this time, the resistance plate 621 is driven by the water flow to deflect the magnet, and then it is separated from the corresponding position of the Hall sensing probe 83. When the pool cleaner touches the wall, there is no water flow through the touch wall detection water channel 16. At this time, the resistance plate 621 is not affected by the water flow, and the magnet is vertically under the action of gravity and corresponds to the position of the Hall sensing probe 83. That is, the Hall sensing probe 83 can detect the touch wall signal and send it to the control device. By operating different power components, the running direction is changed to separate from the wall surface.

[0056] As shown in Figures 8-9As shown, the upper housing 1 is internally provided with a curved baffle structure for forming a water outlet channel 15. The water outlet chamber is divided by a partition plate 43, which, when combined with the upper housing 1, forms the water outlet channel 15. A protective grille 41 is provided at the inlet and outlet of the wall-touch detection channel 16. This protects the water flowing in and out of the wall-touch detection channel 16, preventing impurities from entering the channel 16 and interfering with the normal operation of the wall-touch sensing assembly 6. Furthermore, the protective grille 41 and the partition plate 43 can be integrally formed as an integrated grille plate 4. This integrated grille plate 4 is installed as a whole, ensuring a seamless installation and reducing installation difficulty.

[0057] like Figures 10-12 As shown, the arcuate groove 61 is included. The magnet seat can be disposed within the arcuate groove 61 to eliminate the impact of the water flow in the water outlet chamber on the magnet seat during normal operation of the impeller 5. When the pool cleaner stops at the wall, the magnet seat can naturally droop so that the magnet is aligned with the Hall sensor probe 83. A central shaft 63 is rotatably mounted on the two side walls of the arcuate groove 61. The rotating portion 622 of the swinging member 62 is rotatably mounted on the central shaft 63. That is, the rotating portion 622 is rotatably connected to the central shaft 63 to form a primary rotational connection. The central shaft 63 is provided with shaft shoulders at both ends. The two shaft shoulders are rotatably mounted on the two side walls of the arcuate groove 61. That is, the central shaft 63 is rotatably connected to the arcuate groove 61 to form a primary rotational connection. If one primary rotation is affected by debris and cannot rotate, the other rotation can be utilized to prevent the swinging member 62 from swinging and becoming stuck, thereby ensuring stable operation of the wall-touching sensing assembly 6. In addition, the distance between the two shoulders of the central shaft 63 is greater than the axial width of the swinging member 62, which can support the two side walls of the arc groove 61 when the arc groove 61 deforms and shrinks, thereby preventing the two side walls of the arc groove 61 from affecting the swinging of the swinging member 62, thereby further improving the reliability of the operation of the wall-touch sensing component 6.

[0058] like Figures 11-12As shown, the magnet seat includes a swing arm 623 connected to the rotating part 622 near the side of the Hall inductive probe 83 and a magnet mounting part 624 connected to the swing arm 623. The swing arm 623 is arranged near the side of the Hall inductive probe 83 to ensure the stability of the distance between the magnet and the Hall inductive probe 83, avoiding the deformation of the swing arm 623 and other factors to cause the misalignment of the distance between the two and affect the accuracy of the wall sensing assembly 6. The water-facing surface of the swing arm 623 is wedge-shaped, which can further reduce the resistance of the swing 62 and improve the reliability of the wall sensing assembly 6. The magnet mounting part 624 is provided with a magnet near the side of the Hall inductive probe 83 and a first counterweight away from the side of the Hall inductive probe 83. On the one hand, the first counterweight can balance the weight of the magnet and reduce the bending effect on the swing arm 623. On the other hand, the first counterweight can increase the overall weight of the magnet mounting part 624, so that the magnet mounting part 624 can sag smoothly when the resistance plate 621 is not impacted by the water flow.

[0059] As shown in Figures 15-16 , the water inlet 21 is hingedly provided with an inner opening baffle 24. When the impeller 5 is working, the water flow is sucked into the water inlet chamber. Under the action of the water flow, the inner opening baffle 24 is opened by the water flow, ensuring that the water flow enters smoothly. After the impeller 5 stops working, the inner opening baffle 24 closes the water inlet 21 by gravity, avoiding leakage of dirt sucked into the water inlet chamber. The inner opening baffle 24 is connected to a limiting part 241, which is at a certain angle with the inner opening baffle 24. When the inner opening baffle 24 is opened, the opening angle of the inner opening baffle 24 is limited to less than ninety degrees by the limiting part 241. When there is no water flow impact, the inner opening baffle 24 can rely on gravity to close the water inlet 21. Through the setting of the inner opening baffle 24, the water body can smoothly enter the water inlet chamber through the water inlet 21 when pumping water. The opening angle of the inner opening baffle 24 is limited by the limiting part 241, avoiding the opening being too large to close the water inlet 21 by gravity, and causing the filtered dirt in the water inlet chamber to be discharged again, thereby ensuring the smooth progress of the cleaning process.

[0060] As shown in Figures 5-6 , a control cabin 8 is arranged in the middle of the lower shell 2. A battery 81 for supplying power is arranged in the control cabin 8. The battery 81 is charged through the charging port 23 (as shown in Figure 2 ) arranged at the bottom of the lower shell 2. A motor 82 for driving the rotation of the impeller 5 and a liquid level probe 84 for sensing the water level are also arranged in the control cabin 8. A control cabin cover plate 85 is arranged at the top of the control cabin 8 to seal and waterproof the control cabin 8. The liquid level probe 84 extends out of the control cabin cover plate 85. When the pool cleaner is immersed in the water body, the liquid level probe 84 detects the signal and then controls the opening of the operation of the impeller 5. Figure 1As shown, an indicator light 12 and a switch 13 are provided on the outside of the upper shell 1. The indicator light 12 and the switch 13 are connected to the components in the control cabin 8 through a line to realize the connection of power supply and control signal. Figure 5 and Figure 17 As shown, a second counterweight 9 can be provided around the control cabin 8 in the lower shell 2. The second counterweight 9 is used to improve the overall quality of the pool cleaning machine to overcome the influence of water buoyancy and water flow impact, and ensure that the pool cleaning machine moves smoothly on the bottom of the pool to perform cleaning work.

[0061] like Figure 7 As shown, a U-shaped handle 14 is provided on the top of the housing (upper housing 1). The two legs of the U-shaped handle 14 are hinged to the upper housing 1. The top of the U-shaped handle 14 is hollow and sealed by a handle cover 141. The hollow portion is buoyant in water, allowing the top of the U-shaped handle 14 to naturally float upward and become upright. When the pool cleaner needs to be removed for charging or maintenance, the U-shaped handle 14 can be easily grasped with a tool, making it easier to grab the pool cleaner from the bottom of the pool, improving the convenience of operation.

[0062] The working process of the present invention is as follows:

[0063] Turn on switch 13, and indicator light 12 indicates normal operation. Use a tool to place the pool cleaner into the pool using the U-shaped handle 14. Pool water enters the pool cleaner through the water inlet 21 and outlet 42. Once the liquid level probe 84 detects a water signal, the impeller 5 is activated. Once the impeller 5 is operating, water enters the water inlet chamber through the water inlet 21, passes through the filter 7, and flows into the water outlet chamber. It then enters the water outlet channel 15 at the impeller 5 outlet 52 and is discharged through the water outlet 42. The reaction force of the water discharged from the water outlet 42 provides the power for the pool cleaner to move forward. At the same time, the pool cleaner is subjected to the steering thrust of the steering force receiving portion 154. At this time, the pool cleaner will move to the left front or right front. After touching the wall, the Hall sensor probe 83 in the wall-touching sensing assembly 6 detects the corresponding signal, thereby starting the reverse power component to continue operation. At this time, another impeller 5 will be started, and it will continue to move to the right front or left front. After touching the wall again, the power component will continue to be replaced to drive and change the direction of travel. This operation is repeated, and a zigzag travel route can be formed in the swimming pool, covering the bottom area of ​​the swimming pool and performing a more thorough cleaning of the swimming pool. When charging, cleaning, or maintenance is required, the vertical U-shaped handle is hooked in the water with a tool and removed. The upper shell 1 and the lower shell 2 are separated by opening the second bayonet 11 to clean the dirt therein, and charging is performed through the charging port 23 at the bottom.

[0064] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used for helping to understand the method of the present application and its core idea; meanwhile, for the general technical personnel in the art, according to the idea of the present application, the specific implementation manners and application ranges will be changed. In conclusion, the content of the present specification should not be understood as the limitation of the present application.

Claims

1. A swimming pool cleaning machine, characterized in that: The invention comprises a shell, a running device arranged at the bottom of the shell, and a filter screen arranged in the shell, the filter screen divides the space in the shell into a water inlet chamber and a water outlet chamber, the water inlet chamber is connected to the water inlet at the bottom of the shell, and two groups of power components with opposite driving directions are arranged in the water outlet chamber, the power components include an impeller and a water outlet flow channel, the water outlet flow channel includes a spiral portion and a direct current portion connected in sequence, the inlet of the impeller is connected to the water outlet chamber, the outlet of the impeller is connected to the spiral portion, the direct current portion is connected to the water outlet, the direct current portion deflects toward the outside of the spiral direction of the spiral portion, and a steering force-bearing portion is formed at the junction of the direct current portion and the spiral portion, and the water outlet leads to the outside of the shell and is opposite to the travel direction of the running device; The water inlet is located on the right side of the traveling direction of the walking device, and the steering force-bearing portion is subjected to a counterclockwise deflection force, or the water inlet is located on the left side of the traveling direction of the walking device, and the steering force-bearing portion is subjected to a clockwise deflection force; a scraper is provided at the rear side of the water inlet; The housing includes an upper housing and a lower housing. A curved baffle structure for forming the water outlet channel is provided inside the upper housing. The water outlet cavity is divided by a partition plate. The partition plate is combined with the upper housing to form the water outlet channel. The running device includes running wheels, which are distributed in a cross shape on the outer bottom of the shell. The center of gravity of the running wheels on the front and rear sides is offset, and the center of gravity is biased towards one side of the water inlet.

2. The swimming pool cleaning machine according to claim 1, characterized in that: The traveling wheel is rotatably mounted on the wheel frame through the wheel axle, a positioning block and an annular groove are provided at the top of the wheel frame, a positioning groove is provided on the shell corresponding to the positioning block, a first clip is provided corresponding to the annular groove, and the first clip is snapped into the annular groove to fix the wheel frame; a large through hole and a small through hole are provided on the wheel frame for passing through the wheel axle, and the wheel axle includes a small diameter portion and a large diameter portion connected to each other, the diameter of the small diameter portion is smaller than the small through hole, and the diameter of the large diameter portion is between the small through hole and the large through hole.

3. The swimming pool cleaning machine according to claim 1, characterized in that: A diverter plate parallel to its extension direction is provided in the direct current part, the water outlet adopts a flared structure, and the water outlet is hingedly provided with an outward-opening baffle, the hinge position is located at the upper part of the outward-opening baffle, and when there is no water flow impact, the outward-opening baffle relies on its own weight to close the water outlet.

4. The swimming pool cleaning machine according to any one of claims 1 to 3, characterized in that: The shell is provided with a wall-touch sensing component, which includes a swinging member rotatably arranged on the shell and a Hall sensing probe fixedly arranged on the shell. The swinging member includes a rotating part and a resistance plate and a magnet seat connected to the rotating part. A magnet is installed on the magnet seat. The resistance plate is located in a wall-touch detection water channel that passes through the front and back. When the resistance plate is affected by water flow, the magnet is deflected and separated from the Hall sensing probe. When the resistance plate is not affected by water flow, the magnet corresponds to the Hall sensing probe.

5. The swimming pool cleaning machine according to claim 4, characterized in that: It includes an arc-shaped groove, a central axis is rotatably mounted on the two side walls of the arc-shaped groove, the rotating part is rotatably sleeved on the central axis, and shoulders are respectively provided at both ends of the central axis. The two shoulders are rotatably clamped on the two side walls of the arc-shaped groove, and the distance between the two shoulders is greater than the axial width of the swinging part.

6. The swimming pool cleaning machine according to claim 5, characterized in that: The magnet seat includes a swing arm connected to the rotating part on the side close to the Hall sensing probe and a magnet mounting part connected to the swing arm, the water-facing surface of the swing arm is set to a wedge shape, the magnet is provided on the side of the magnet mounting part close to the Hall sensing probe, and the first counterweight is provided on the side away from the Hall sensing probe.

7. The swimming pool cleaning machine according to claim 1, characterized in that: The water inlet is hingedly provided with an inward-opening baffle, which is connected to a limiting portion. The limiting portion limits the opening angle of the inward-opening baffle to less than ninety degrees. When there is no water flow impact, the inward-opening baffle relies on its own weight to close the water inlet.

8. The swimming pool cleaning machine according to claim 1, characterized in that: A U-shaped handle is provided on the top of the shell, two legs of the U-shaped handle are hinged to the shell, and the top of the U-shaped handle is hollow and sealed by a handle cover.

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