Mechanical reversing structure of pool cleaner and pool cleaner

Abstract

This invention provides a mechanical reversing structure for a swimming pool cleaner and the cleaner itself. The reversing device, mounted on the main body of the cleaner and capable of swinging relative to it, includes a stop unit and at least one set of stop units rotatable relative to the reversing device. When the cleaner moves, the stop units contact the stop units, keeping the reversing device essentially stationary relative to the housing. During reversing, the stop units gradually separate from the stop units and rotate relative to them. The stop units can rotate relative to the swinging component, allowing them to contact or disengage from the stop units, thus enabling the cleaner to move and reverse. When the cleaner moves, the swinging component remains relatively stationary relative to the main body; when the cleaner stops, the swinging component resets, achieving reversing. The design is simple, easy to install, and operates smoothly without requiring an electrical control unit for auxiliary reversing.

Description

Technical Field

[0001] This invention belongs to the field of swimming pool cleaning technology, and in particular relates to a mechanical reversing structure for a swimming pool cleaning machine and the swimming pool cleaning machine itself. Background Technology

[0002] When cleaning a pool, a pool cleaning machine needs to change direction when it encounters a wall or obstacle. Existing automatic pool cleaning machines typically use time-based control for reversing, which cannot identify whether the machine has touched a wall or encountered an obstacle to return or turn. When the cleaning machine touches a wall or encounters other obstacles, it must wait until the set time period ends before it can reverse, resulting in significant efficiency loss. Alternatively, electronic components can be used for wall contact detection, which is complex and costly. Another option is to use a swinging component and a stop component to achieve reversing. However, existing swinging components rotate with the rotating component, and when the swinging angle is too large, they are prone to detaching from the stop component. Summary of the Invention

[0003] In view of the above problems, the present invention provides a mechanical reversing structure for a pool cleaning machine and a pool cleaning machine, so as to solve the above or other problems existing in the prior art.

[0004] This application provides a mechanical reversing structure for a swimming pool cleaning machine, the mechanical reversing structure comprising:

[0005] A swing unit is connected to the main body of the pool cleaner and can swing relative to the main body of the pool cleaner;

[0006] At least one abutting unit is connected to the swinging unit;

[0007] At least one stop unit is rotatably connected to the main body of the pool cleaning machine;

[0008] During the operation of the pool cleaning machine, the stop unit is located in a position that interferes with or is disengaged from the abutment unit.

[0009] In one implementation, the operation of the pool cleaning machine refers to the continuous operation of the power drive components of the pool cleaning machine. The pool cleaning machine may be in motion or may be in a state of obstructed movement due to encountering obstacles or other situations.

[0010] Optionally, the swing unit is mounted on the main body of the pool cleaning machine via the abutment unit.

[0011] When the pool cleaning machine is in motion, the abutting unit and the stopping unit are in an interfering state. At this time, the swinging unit, the abutting unit and the main body of the pool cleaning machine remain relatively stationary.

[0012] During the reversing process of the pool cleaning machine, the stop unit gradually separates from the abutment unit.

[0013] Optionally, when the pool cleaning machine moves, the swing unit is subjected to water resistance and tilts backward relative to the pool cleaning machine, and the abutment unit and the stop unit are in an interfering state.

[0014] The backward tilt is a tilt in the opposite direction to the forward direction of the pool cleaning machine.

[0015] Optionally, when the movement of the pool cleaning machine is obstructed, under the rotational force of the stop unit, the stop unit rotates to a position that interferes with another abutting unit.

[0016] Optionally, when the movement of the pool cleaning machine is obstructed, under the rotational force of the stop unit, the stop unit rotates to a position where it interferes with another abutment unit; at this time, the rotation of the stop unit corresponds to the rotation of the rotating water channel, which in turn changes the direction of the water outlet of the water outlet channel, thereby causing the movement direction of the pool cleaning machine to change, break free from the obstructed state, and change direction.

[0017] Optionally, when the movement of the pool cleaning machine is obstructed and the abutting unit and the stopping unit are in an interfering state, the abutting unit can disengage from the stopping unit under the rotational force of the stopping unit.

[0018] In one specific implementation, when the movement of the pool cleaning machine is obstructed, the resistance of the water flow disappears, and the rotational force of the stop unit can overcome the obstruction of the abutment unit on the stop unit, so that the stop unit and the abutment unit are separated from the interference state.

[0019] Optionally, when the movement of the pool cleaner is obstructed and the swing unit returns from an inclined state to a position perpendicular to the main body of the pool cleaner, the stop unit is in a state of disengagement from the abutment unit. At this time, the stop unit rotates to a position where it interferes with another abutment unit.

[0020] Optionally, the stop unit is connected to the main body of the pool cleaner via a rotating component, wherein the rotating component is the rotating water channel of the pool cleaner or the rotating component is fixedly connected to the rotating water channel of the pool cleaner.

[0021] The rotating waterway is the water outlet channel of the pool cleaner and is rotatably connected to the main body of the pool cleaner.

[0022] The different positions of the water outlet channel correspond to different directions of movement of the pool cleaning machine.

[0023] In one specific implementation, the power drive (motor driving impeller) of the pool cleaner applies rotational force to the rotating component (stop unit). If the stop unit and the abutment unit are not in a blocking state, the stop unit rotates; if they are in a blocking state, the stop unit, although relatively stationary with the main body of the pool cleaner, still has a rotational force.

[0024] In one specific implementation, when the pool cleaner moves, the water flow provides resistance to the swing unit, causing the swing unit to swing backward relative to the main body of the pool cleaner. At this time, the rotational force and the water flow resistance can overcome the restoring force of the swing unit, enabling the swing unit to maintain its backward swing relative to the pool cleaner.

[0025] As one specific implementation, the mechanical reversing structure includes a stop unit.

[0026] As one specific implementation, the mechanical reversing structure includes two stop units.

[0027] Optionally, the stopping unit includes a first stop and a second stop, with the first stop and the second stop arranged adjacent to each other. Both the first stop and the second stop are connected to the main body of the pool cleaning machine via a rotating member; preferably, the first stop and the second stop are connected to the main body of the pool cleaning machine via the same rotating member.

[0028] In one specific implementation, the first stop and the second stop are located on the same side of the rotating member and are arranged sequentially along the circumferential direction of the rotating member, so that the abutment unit first contacts the first stop during the walking and / or reversing process, and after being resisted by water flow during the movement, the abutment unit passes the first stop and contacts the second stop.

[0029] In one specific implementation, along the radial direction of the rotating member, the distance between the second stop and the axis of the rotating member is less than the distance between the first stop and the axis of the rotating member.

[0030] Furthermore, the height of the second stop is greater than the height of the first stop.

[0031] Optionally, the first stop and the second stop interact with different contact positions or different contact components of the same contact unit, and are in an interference or disengagement state.

[0032] Optionally, during the rotation of the stop unit, the abutment unit first passes the location of the first stop member, and then passes the location of the second stop member.

[0033] Optionally, the first stop and the second stop are located on different circumferences, and the height of the first stop is different from the height of the second stop; wherein the circumference is centered on the rotation center of the rotating waterway.

[0034] Optionally, the highest point of the first stop in the vertical direction is lower than the highest point of the second stop in the vertical direction.

[0035] Optionally, the first stop is located on the outer periphery relative to the second stop.

[0036] As one specific implementation, both the first stop and the second stop are components with a certain vertical height, such as cuboids, cubes, or cylinders; or, depending on actual needs, inclined surfaces can be provided at any position on the components, such as at the ends, to satisfy the interaction with the abutment unit.

[0037] Optionally, when the first stop and the abutting unit change from the interference state to the disengagement state, the second stop and the abutting unit change from the disengagement state to the interference state.

[0038] In one specific implementation, when the first stop and the abutting unit are in an interference state (blocking state), the second stop and the abutting unit are in a disinterference state (i.e., non-blocking state); when the first stop and the abutting unit change from an interference state to a disinterference state, the second stop and the abutting unit change from a disinterference state to an interference state; when the first stop and the abutting unit gradually change from an interference state to a disinterference state, the second stop and the abutting unit gradually change from a disinterference state to an interference state.

[0039] Optionally, under the rotational force of the stop unit, the first stop member and the abutment unit can move from the interference position to the disengagement position.

[0040] Optionally, when the pool cleaning machine moves, the swing unit is subjected to water resistance and tilts backward relative to the pool cleaning machine, and the second stop is located at a position that interferes with the abutment unit.

[0041] Optionally, when the movement of the pool cleaning machine is obstructed and the swing unit returns from an inclined position to a position perpendicular to the main body of the pool cleaning machine, the first stop and the second stop are in a state of disengagement from the abutment unit.

[0042] In one specific implementation, when the movement of the pool cleaner is obstructed, the resistance of the water flow to the swing unit disappears, and the first stop and the abutment unit are in a blocking state. At this time, under the action of the rotational force of the stop unit, the first stop can overcome the obstruction of the abutment unit. Then, under the action of the restoring force, the swing unit returns to the vertical state. At this time, the second stop can also pass over the abutment unit, and the stop unit rotates until it blocks the abutment unit on the other side. At this time, the direction of the water outlet changes, and the movement direction of the pool cleaner changes accordingly, thus escaping the state of obstructed movement and completing the reversal.

[0043] In one specific implementation, the rotational force of the stop unit can cause the first stop to overcome the obstruction of the abutment unit and disengage from the blocking state, but cannot cause the second stop to overcome the obstruction of the abutment unit and disengage from the blocking state; the second stop disengages from the blocking state by the swing unit being in a vertical state relative to the main body of the pool cleaning machine.

[0044] Optionally, the first stop member overcoming the obstruction of the abutment unit and disengaging from the blocking state can be due to the rotational force of the stop unit, or it can be due to the swing unit being in a vertical state relative to the main body of the pool cleaner.

[0045] Optionally, when the movement of the pool cleaning machine is obstructed and the swing unit is tilted backward relative to the main body of the pool cleaning machine, and the abutting unit is in an interference state with the first stop, under the action of the rotational force of the stop unit, the abutting unit and the first stop move from the interference state to the disengagement state, the swing unit is perpendicular to the main body of the pool cleaning machine, and the stop unit rotates to a position where it interferes with the other abutting unit.

[0046] Optionally, under the rotational force of the stop unit, the first stop member moves from the position interfering with the abutment unit to the position of disengagement, and the second stop member moves from the position of disengagement from the abutment unit to the position of interference.

[0047] When the pool cleaning machine is obstructed, the swing unit returns to a vertical position, the second stop disengages from the abutment unit, and the stop unit rotates until either the first or second stop is in a state of interference with another abutment unit; and / or

[0048] When the pool cleaner is in motion, and is simultaneously subjected to water resistance, the swing unit remains tilted backward relative to the pool cleaner in its vertical plane, and the second stop is in a state of interference with the abutment unit.

[0049] Optionally, the mechanical reversing structure includes two abutment units.

[0050] In one specific implementation, the two abutting units have the same structure; preferably, they are symmetrical in position and have the same structure.

[0051] Optionally, the two abutting units are located at different positions on the same circumference, preferably at the two endpoints of a straight line passing through the center of the same circumference, with the two abutting units arranged at 180°.

[0052] In one specific implementation, the two abutting units are located at different positions on the outer periphery of the cleaning machine housing where the rotating component is located. Preferably, the two abutting units are in symmetrical positions.

[0053] Optionally, the abutting unit is oscillatingly connected to the main body of the pool cleaning machine; the abutting unit is fixedly connected to the oscillating unit.

[0054] Optionally, the abutting unit includes a pre-abutting component and an abutting component, the pre-abutting component being fixedly connected to the abutting component; the swinging of the swinging unit corresponds to the movement of the pre-abutting component and the abutting component.

[0055] The term "component" can refer to a single component or two parts of the same component.

[0056] In one specific implementation, (i) the point of action between the pre-abutting member (part) and the stop unit (first stop member) is not in the same vertical plane as (ii) the point of action between the abutting member (part) and the stop unit (second stop member).

[0057] Optionally, the lowest point of the pre-abutment member (part) in the vertical direction is not at the same height as the lowest point of the abutment member (part) in the vertical direction.

[0058] Optionally, the lowest point of the abutting member (part) in the vertical direction is higher than the lowest point of the pre-abutting member (part) in the vertical direction.

[0059] Optionally, the abutting member (part) and / or pre-abutting member (part) are oscillatingly connected to the main body of the pool cleaning machine;

[0060] The abutting component (part) and / or the pre-abutting component (part) are fixedly connected to the swing unit.

[0061] In one specific embodiment, the abutting member (part) is on the extension line of the pre-abutting member (part) facing the inner side of the pool cleaning machine body.

[0062] Optionally, the pre-abutting member (part) interacts with the first stop member, either in an interference position or disengaged; the abutting member (part) interacts with the second stop member, either in an interference position or disengaged.

[0063] Optionally, the pre-abutting member (part) has a main part and an extension part; the extension part is fixedly connected to the main part (preferably the outer periphery), and the extension part extends towards the stop unit.

[0064] Optionally, the main part has a through hole, through which it is connected to the main shaft of the pool cleaning machine.

[0065] The extension interacts with (interferes with or disengages from) the stop unit (first stop).

[0066] In one specific embodiment, the pre-abutting member (part) is a component (cylinder, cube, or polyhedron, etc.) with an inner circumferential through hole, and an extension portion is provided downward on the outer circumference. Preferably, the extension portion is a cylindrical structure (it can also be set according to actual needs, as long as it can interact with the first stop member).

[0067] Optionally, the side of the abutment (part) facing the stop device is provided with a blocking part and a through part. The blocking part and the through part are arranged sequentially along the axial direction. The through part corresponds to the position of the stop unit (second stop member) so that the second stop member can pass through the through part when rotating. The blocking part corresponds at least partially to the second stop member so that the blocking part can contact the second stop member and restrict the rotation of the second stop member.

[0068] In one specific embodiment, the abutment component is a part (cylinder, cube, or polyhedron, etc.) with an open internal through hole or a part (cylinder, cube, or polyhedron, etc.) with an inner circumferential through hole. The internal through hole is oscillatingly connected to the main body of the pool cleaning machine via a shaft.

[0069] Optionally, the lower edge of the component (outer peripheral edge of the component) interacts with (interferes with or disengages from) the stop unit (second stop).

[0070] Optionally, the abutting part is fixedly connected to the pre-abutting part, and the abutting part is located on the (inward) axial extension line of the pre-abutting part and the main body of the pool cleaning machine.

[0071] When the swing unit is in a vertical position relative to the pool cleaner, the lowest point of the abutment (part) is higher than the highest point of the second stop, allowing the second stop to rotate via the abutment unit. In one specific embodiment, the abutment (part) is a component with a central through hole (e.g., a cylinder or cube with a central through hole; or a semi-cylinder or semi-cube with an opening at the bottom); the central through hole is oscillatingly connected to the main body of the pool cleaner via a shaft. When the swing unit swings, the lower edge of the abutment (part) interacts (interferes) with the stop unit (second stop).

[0072] Optionally, the lowest point of the abutting part is higher than the lowest point of the extension of the pre-abutting part.

[0073] Optionally, the component with a central through hole is fixedly connected to the swing unit on top.

[0074] In one specific embodiment, the abutting unit includes a pre-abutting member and abutting member connected to each other. The side of the pre-abutting member facing the stop unit is provided with a blocking part and a through part. The blocking part and the through part are arranged sequentially along the axial direction of the pre-abutting member. The through part corresponds to the position of the second stop member so that the second stop member can pass through the through part when rotating. The blocking part corresponds at least partially to the first stop member so that the blocking part can contact the first stop member and restrict the rotation of the first stop member.

[0075] Furthermore, the abutment is located on the opposite side of the pre-abutment where the blocking part is located. The abutment is connected to the swinging part of the reversing device. When the blocking part is disengaged from the first stop, the abutment comes into contact with the second stop to maintain the relative stationary state of the reversing device when the pool cleaning machine is moving.

[0076] In one specific implementation, the swing unit is a swinging component, preferably a U-shaped swinging component (plate).

[0077] Optionally, when the pool cleaning machine is in motion, the swing unit tilts backward relative to the main body of the pool cleaning machine;

[0078] When the movement of the pool cleaning machine is obstructed, the state of the swing unit is selected from (i) tilting backward relative to the main body of the pool cleaning machine; (ii) being perpendicular to the main body of the pool cleaning machine.

[0079] Optionally, the swing unit can be restored from an inclined state to a vertical state by buoyancy, gravity, or elasticity.

[0080] The force that can keep the swinging unit perpendicular to the main body of the cleaning machine when there are no other forces acting on it is called the restoring force.

[0081] Optionally, the force exerted by the swing unit relative to the main body of the pool cleaning machine is derived from the restoring force;

[0082] The restoring force is selected from buoyancy, gravity, elasticity, or inertia. As one specific implementation, a buoyancy block is provided on the swing unit or the swing unit is made of at least part of a buoyancy material (capable of providing a restoring force to the swing unit).

[0083] As one specific implementation, a gravity block is provided on the swing unit or the swing unit is made of at least part of a gravity material (capable of providing the swing unit with a restoring force).

[0084] As one specific implementation, an elastic component (capable of providing restoring force to the swing unit) is provided at the connection between the swing unit and the abutment unit or the main body of the cleaning machine.

[0085] As one specific implementation, the restoring force is derived from the scheme described in CN110409877A.

[0086] Optionally, the swing unit includes at least one resistance plate, which is connected to the abutment unit, and the connection method is selected from one of the following:

[0087] Different resistance plates are connected to different abutment units, or one resistance plate is connected to different abutment units, or one resistance plate is connected to the same abutment unit.

[0088] Optionally, the resistance plate is fixedly connected to the abutment unit; the abutment unit is oscillatingly connected to the main body of the pool cleaning machine.

[0089] Optionally, the swing unit includes a U-shaped resistance plate, with its two ends connected to different abutment units.

[0090] Optionally, the mechanical reversing structure includes:

[0091] A U-shaped resistance plate;

[0092] Two abutment units, each abutment unit comprising a pre-abutment component and an abutment component;

[0093] A stop unit includes a first stop and a second stop;

[0094] The two ends of the U-shaped resistance plate are respectively fixedly connected to one of the abutment units;

[0095] The abutment unit is oscillatingly connected to the main body of the pool cleaning machine;

[0096] Both the first stop and the second stop can rotate relative to the pool cleaning machine;

[0097] During the rotation of the stop unit, the first stop member is in an interference state or a disengagement state with the pre-abutment member (part); the second stop member is in an interference state or abutment state with the abutment member (part).

[0098] Optionally, the end of the U-shaped resistance plate and the abutment part are fixedly connected, the abutment part is fixedly connected to the pre-abutment part, and the pre-abutment part is oscillatingly connected to the main body of the pool cleaning machine via a shaft.

[0099] Optionally, the first stop and the second stop are fixedly connected to the rotating waterway of the pool cleaning machine and are arranged adjacent to each other.

[0100] Optionally, the first stop and the second stop are located on different circumferences, and the height of the first stop is different from the height of the second stop;

[0101] The circumference is centered on the rotation center of the rotating waterway.

[0102] Optionally, when the U-shaped resistance plate is in a vertical position, the lowest point of the pre-abutment member (part) in the vertical direction is not at the same height as the lowest point of the abutment member (part) in the vertical direction.

[0103] Optionally, the first stop is located on the outer periphery relative to the second stop.

[0104] Optionally, the pre-abutting member (part) is located on the outer periphery relative to the abutting member (part).

[0105] Optionally, the first stop and the second stop are located on different circumferences, and the highest point of the first stop in the vertical direction is lower than the highest point of the second stop in the vertical direction.

[0106] When the U-shaped resistance plate is in a vertical position, the lowest point of the abutment (part) in the vertical direction is higher than the lowest point of the pre-abutment (part) in the vertical direction.

[0107] Another aspect of this application provides a pool cleaning machine comprising one of the mechanical reversing structures described in any of the preceding claims.

[0108] Optionally, the pool cleaning machine includes an upper housing and a lower housing; the upper housing and the lower housing are detachably connected; the upper housing is provided with a rotating water channel, and water flows through the inlet of the lower housing and is discharged through the outlet of the water channel;

[0109] When the pool cleaning machine is running, the rotating waterway rotates under the action of the power unit.

[0110] Optionally, the swing unit of the mechanical reversing structure is fixedly connected to the abutting unit, and the abutting unit is swing-connected to the upper housing.

[0111] Optionally, the upper housing is provided with an opening corresponding to the outlet of the rotating water channel.

[0112] In one specific implementation, when the abutting unit and the stopping unit are in a blocking state, the outlet of the rotating water channel corresponds to the opening on the upper housing, water is sprayed out, and the reaction force is applied to the pool cleaning machine.

[0113] Optionally, the pool cleaning includes a power drive unit, which includes a motor and an impeller. When the motor starts, it drives the impeller to rotate; water flows through the inlet, passes through the filtration device, and then through the impeller to reach the rotating water channel, causing a change in the outlet of the corresponding outlet channel. By adopting the above technical solution, a stop unit and a stop unit installed on the swinging component are provided. The stop unit is rotatably connected to the main body of the pool cleaner through a rotating component. The stop device rotates with the rotation of the rotating component. The swinging component is connected to the shell of the pool cleaner and can swing relative to the shell. Through the rotation of the stop unit, the stop unit can contact or disengage with the stop unit. In the walking configuration of the pool cleaner, the stop device contacts the stop component. When the pool cleaner touches the wall or encounters an obstacle, the swinging component resets, realizing reversal. The structure is simple, easy to install, and runs smoothly without the need for auxiliary reversal by the electrical control part. Moreover, the stop rotation can make the reversal of the pool cleaner more stable, reduce energy consumption, and make the reversal more accurate. At the same time, the first and second stop components of the stop unit cooperate with the pre-stopping component (part) and the stopping component (part) of the stop unit to solve the problem of the pool cleaner's movement being obstructed upon entering the water (such as touching the wall upon entering the water).

[0114] In addition, according to the structure of the swing unit, the stop unit has a first stop and a second stop. The first stop and the second stop are arranged adjacent to each other (located on the same side of the rotating part). The height of the first stop is less than the height of the second stop, so that the abutment component can contact the second stop after passing the first stop. This ensures that the second stop contacts the abutment component during the movement of the pool cleaning machine, ensuring that the pool cleaning machine is in a stable state when it moves, and preventing the swing component from detaching from the stop when the swing angle is too large. Attached Figure Description

[0115] Figure 1 This is a schematic diagram of the structure of the swimming pool cleaning machine according to Embodiment 1 of the present invention.

[0116] Figure 2 This is a schematic diagram of the swimming pool cleaning machine according to Embodiment 1 of the present invention (with the upper housing removed).

[0117] Figure 3 This is a schematic diagram of the structure of the pool cleaning machine according to Embodiment 1 of the present invention (with the upper shell removed and the swing unit in a vertical state);

[0118] Figure 4 This is a schematic diagram of the structure of the swimming pool cleaning machine according to Embodiment 1 of the present invention (the swing unit is in an inclined state).

[0119] Figure 5 This is a schematic diagram of the structure of the swimming pool cleaning machine according to Embodiment 1 of the present invention (the swing unit is in an inclined state).

[0120] Figure 6 This is a schematic diagram of the mechanical reversing structure in Embodiment 1 of the present invention.

[0121] Figure 7 This is a schematic diagram of the swimming pool cleaning machine in Embodiment 2 of the present invention.

[0122] Figure 8 This is a schematic diagram of the mechanical reversing structure in Embodiment 2 of the present invention.

[0123] Figure 9 This is a schematic diagram of a swimming pool cleaning machine in Embodiment 2 of the present invention (the swing unit is in an inclined state).

[0124] In the picture:

[0125] 1. Swing unit; 2. Connecting shaft;

[0126] 3. Upper shell; 31. Upper part of the upper shell; 32. Lower part of the upper shell;

[0127] 4. Abutting unit; 41. Abutting component; 42. Pre-abutting component;

[0128] 400. Abutting part (main section); 401. Penetrating part; 402. Blocking part (extension part);

[0129] 5. Stop unit; 50. First stop; 51. Second stop;

[0130] 7. Rotating waterway; 70. Outlet of rotating waterway; 8. Connecting parts. Detailed Implementation

[0131] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0132] Figures 1 to 9The diagram illustrates the structure of some embodiments of the present invention. These embodiments relate to a mechanical reversing structure for a pool cleaning machine and the pool cleaning machine itself. This structure enables the pool cleaning machine to reverse direction when its movement is obstructed by contact with a wall or obstacles during cleaning operations in a pool. In some embodiments of the present invention, the stop unit 5 and the abutment unit 4 in the mechanical reversing structure are initially in a blocking state (interference). Then, depending on whether there is actual water flow thrust, a next action is performed. During the next action, the reversing of the pool cleaning machine is achieved through the cooperation of the stop unit 5 and the abutment unit 4. The stop unit 5 can rotate relative to the abutment unit 4 (the abutment unit 4 is connected to the main body of the pool cleaning machine and can swing relative to the main body; for example, the abutment unit 4 is connected to the shell of the pool cleaning machine and can reciprocate relative to the shell; the stop unit 5 is connected to the main body of the pool cleaning machine and can rotate relative to the main body / abutment unit 4; for example, the stop unit 5 is connected to the rotating part of the pool cleaning machine and rotates with the rotation of the rotating part). 5. During rotation, the stop unit 5 contacts the abutment unit 4 and is blocked by the abutment component 4; or, the stop unit 5 disengages from the abutment unit 4 and continues to rotate, thereby realizing the reversal of the pool cleaner. This can be achieved as follows: the pool cleaner starts working, the stop unit 5 rotates (under the action of the drive device), and rotates to the position of the abutment unit 4, where the two are in an interference state. The position of the abutment unit 4 corresponds to the positional relationship between the pool cleaner's outlet and the water outlet of the channel; that is, when the stop unit 5 is abutting the abutment unit 4... When the position of unit 4 is blocked, the water outlet of the water channel aligns with the water outlet of the pool cleaner, and water sprays from the pool cleaner's outlet. At this time, under the thrust of the water, the pool cleaner moves in one direction. The water resistance acts on the swing unit 1, causing the swinging component to tilt backward and abut against unit 4 to maintain the blocking state. When the movement of the pool cleaner is obstructed (such as when it touches the wall or encounters an obstacle), the water resistance disappears, the swing unit 1 resets, the abutting unit 4 and the stop unit 5 separate, and the stop unit 5 continues to rotate, repeating the above process to complete the reversal. Automatic reversal is achieved based on the blocking or disengagement of the stop unit 5 and the abutting unit 4, eliminating the need for auxiliary reversal by the electrical control system. The structure is simple, easy to install, and highly efficient.

[0133] The following detailed description is provided through some specific embodiments.

[0134] Example 1

[0135] See pool cleaning machine with mechanical reversing structure. Figure 1The pool cleaner includes an upper housing 3 and a lower housing (not labeled). The upper and lower housings are fixedly connected by a mechanical reversing structure located on the upper housing 3 (the upper housing 3 includes an upper housing 31 and an upper housing 32, which are fixedly connected). The swing unit 1 (U-shaped swing plate) is oscillatingly connected to the upper housing 3 via a connecting shaft 2. A rotating water channel 7 is located inside the upper housing 31 and connected to it via a connector 8. When the pool cleaner is running, the power drive unit (such as a motor and impeller) starts working; the motor starts, driving the impeller to rotate and sucking up wastewater from the pool. The wastewater enters the filtration unit of the lower housing through the pool cleaner's inlet (bottom inlet), and after filtration, enters the rotating water channel 7. When the outlet 70 of the rotating water channel corresponds to the opening of the upper housing 3, the filtered water is discharged from the outlet through the opening of the upper housing 3, propelling the pool cleaner forward. During the pool movement, the swing unit 1 tilts backward relative to the pool cleaner under the action of the rotational thrust of the stop unit 5 and the water flow resistance, so that the stop unit 5 is in a state of relative stillness with the main body of the pool cleaner. Then the outlet 70 of the rotating water channel connected to the stop unit 5 corresponds to the opening of the upper shell 3, and water is sprayed out, so that the pool cleaner moves to clean.

[0136] During the pool cleaning process, the pool cleaning machine will generally encounter obstacles after moving for a certain period of time (depending on the actual situation) (such as touching the pool wall, ladder objects in the pool, or uneven pool bottom, etc.).

[0137] When the movement of the pool cleaner is obstructed, the resistance of the water to the swing unit 1 disappears, and the swing unit 1 returns to a vertical state. Here, the rotating water channel 7 can rotate until the stop unit 5 interacts with another abutting unit 4. Here, the water outlet 70 of the rotating water channel corresponds to another opening on the housing 31 to drain water. Here, the direction of the water outlet has changed, that is, it pushes the pool cleaner to move in another direction, solving the problem of obstructed movement. At this time, the swing unit 1 is in a backward tilted state again, so that the pool cleaner can continue to move and clean.

[0138] In this embodiment, when the pool cleaner moves, the swing unit 1 is subjected to water resistance; during movement, the second stop 51 and the abutment 41 are in an interfering position, blocking state, and the swing unit 1 is tilted relative to the main body of the pool cleaner.

[0139] like Figure 2-6 As shown, the mechanical reversing structure in this embodiment (see enlarged partial view for details) Figure 6It includes a swing unit 1, abutting unit 4 and a stop unit 5; the swing unit 1 is a U-shaped swing member in this embodiment; the stop unit 5 includes two stop members, a first stop member 50 and a second stop member 51; the abutting unit 4 includes a pre-abutting member 42 and an abutting member 41.

[0140] The first stop 50 and the second stop 51 are fixedly connected to the rotating waterway 7 via an extension plate. Specifically, the first stop 50 and the second stop 51 are installed on the extended portion of the outer periphery of the rotating waterway 7 and are vertically upwards, allowing them to interfere with the abutment unit 4 (in a blocking state). The first stop 50 and the second stop 51 are located at different positions on the same circumference. When the rotating waterway 7 rotates, the first stop 50 is passed first, followed by the second stop 51. The second stop 51 is higher than the first stop 50; and the first stop 50 is located on the outer periphery relative to the second stop 51. The specific shapes of the first stop 50 and the second stop 51 can be set according to actual needs, such as common cylindrical shapes, polyhedral shapes, and inclined surfaces can be added as needed.

[0141] The pre-abutment member 42 is oscillatingly connected to the upper housing 31 via the connecting shaft 2. The pre-abutment member 42 includes a main part and an extension part. The main part contains an internal through hole so that the connecting shaft 2 can pass through and connect to the upper housing 31. An extension part 401 extends below the main part for interacting with the first stop member 50, and can be in an interference / blocking state. Depending on the actual needs, the pre-abutment member 42 can be a main body or a polyhedron with a central through hole, and a column or polyhedron extending downward from its outer periphery. The abutment member 41 and the pre-abutment member 42 are fixedly connected (they can be integrally formed according to actual needs). The abutment member 41 is on the extension line of the pre-abutment member 42 extending into the inner side of the cleaning machine body, and the connecting shaft 2 passes through the abutment member 41 at the same time. The abutment 41 can be configured as a hollow arched cross-section, i.e., a semi-hollow cylinder or polyhedron; or a hollow cylinder, polyhedron, or similar structure, with its lowest point higher than the pre-abutment 42. The lower edge of the abutment 41 can interact with the second stop 51, in an interference / blocking state (e.g., when the pool cleaner is moving). Simultaneously, when the pre-abutment 42 interferes with the first stop 50 (in a blocking state), the abutment 41 is disengaged from the second stop 51. When the pool cleaner's movement is obstructed, and the pre-abutment 42 interferes with the first stop 50, the rotational force from the rotating channel 7 to the stop unit 5 can cause the pre-abutment 42 to disengage from the first stop 50. That is, under the action of the rotational force, the stop unit 5 gradually rotates, allowing the first stop 50 to rotate and overcome the obstruction of the pre-abutment 42, thus disengaging the pre-abutment 42 from the first stop 50. As the pre-abutment member 42 and the first stop member 50 gradually change from the blocking state to the disengagement state, when the pre-abutment member 42 and the first stop member 50 disengage, the abutment member 41 and the second stop member 51 are in an interference state. Since the water resistance disappears when the movement of the pool cleaner is obstructed, that is, the swing unit 1 is no longer subject to water resistance. At this time, the swing unit 1 returns to vertical under the action of restoring force (such as buoyancy, and the swing member is set as a buoyancy material). At this time, the abutment member 4 and the stop member 5 disengage, and the stop member 5 continues to rotate until it abuts against the abutment member 4 on the other side, such as the first stop member 50 interfering with the pre-abutment member 42 on the other side or the second stop member 51 interfering with the abutment member 41 on the other side. Here, the outlet 70 of the rotating water channel corresponds to another opening on the upper shell 31, and the water outlet direction changes compared to the previous direction. At this time, the pool cleaner is pushed to move in different directions, and the movement is obstructed.

[0142] The swing unit 1 is a U-shaped swing plate, with each end connected to a different abutment unit 4. The abutment units 4 at both ends have the same structure and are connected to the U-shaped swing component and the main body (upper shell) of the cleaning machine in the same way.

[0143] As one specific implementation method under one working state, the reversing process of the pool cleaning machine under the action of the mechanical reversing structure is as follows: When the pool cleaning machine is working, the stop unit 5 rotates. When it rotates to the first abutting unit 4, the first stop 50 and the pre-abutting member 42 contact and are in a blocking state, restricting the rotation of the stop unit 5. The water outlet of the water channel corresponds to one of the multiple water outlets of the pool cleaning machine. The impeller inside the main body of the pool cleaning machine rotates, sucking up the sewage at the bottom of the pool cleaning machine. The sewage enters the filter box inside the lower shell for filtration. The filtered water enters the rotating waterway 7, flows along the waterway, and is discharged from the outlet of the rotating waterway 7. If the pool cleaning machine is in a state of obstruction due to contact with the wall or encountering an obstacle, and the first stop 50 interferes with or is close to interfering with the pre-abutment member 42, under the continuous action of the rotational thrust of the stop unit 5, the swing unit 1 swings (e.g., from a vertical state to an inclined state or from an inclined state to a more inclined state). Here, the abutment member 41 is in a state of tending to block (i.e., the abutment member 41 and the second stop 51 tend to interfere with and block). The rotational force of element 5 is applied to the pre-abutment member 42 through the first stop 50. Under the action of the rotational thrust, the first stop 50 separates from the pre-abutment member 42, the stop unit 5 rotates, and the second stop 51 moves toward the abutment member 41. The second stop 51 and the abutment member 41 are in an interference blocking state. Since the pool cleaning machine is in a state of motion obstruction at this time, there is no water resistance pressing on the swing unit 1. The swing unit 1 resets under the action of the restoring force (which can be buoyancy, elasticity, gravity, inertia, etc.) (for example, the swing unit 1 returns to a vertical state). The second stop 51 and When the abutment 41 disengages, the second stop 51 passes over the abutment 41, meaning that the first stop 50 / second stop 51 and the pre-abutment 42 / abutment 41 are all separated. The stop unit 5 continues to rotate. When it rotates to another abutment position, at this abutment position, the first stop 50 and the pre-abutment 42 at this abutment position are in a blocking state. At this time, due to the rotation of the stop unit 5, the outlet direction of the waterway has changed and corresponds to another outlet of the pool cleaner. The pool cleaner changes its direction of travel, disengages from the pool wall or obstacle, and achieves reversing travel.

[0144] As another specific implementation method under one working state, the process of the pool cleaning machine changing direction under the mechanical reversing action is as follows: When the pool cleaning machine is working, the stop unit 5 rotates. When it rotates to a stop position, the first stop 50 and the pre-stop 42 contact and are in the blocking position. The water outlet of the water channel basically corresponds to one of the water outlets of the pool cleaning machine. Water is sprayed from the water outlet of the pool cleaning machine, which propels the pool cleaning machine to move. During the movement of the pool cleaning machine (due to the thrust generated by water resistance), under the action of the rotational thrust of the stop unit 5 and the water resistance, the swing unit 1 swings, causing the first stop 50 to separate from the pre-abutment member 42. Simultaneously, the second stop 51 contacts the abutment member 41, and the abutment member 41 blocks the rotation of the second stop 51. The second stop 51 and the abutment member 41 interfere with each other (blocking state), (e.g., causing the swing unit 1 to be in a tilted state). The rotation of the rotating waterway 7 is restricted, the stop unit 5 stops rotating, and under the continuous thrust of the water resistance, the swing unit 1 maintains its tilted state, thus preventing the abutment from being blocked. When component 41 remains in the blocking state, the pool cleaner moves in one direction. When the movement of the pool cleaner is obstructed (touches the wall or encounters an obstacle), the water resistance disappears, that is, the thrust of the water flow acting on the swing unit 1 disappears. At this time, the swing unit 1 is reset under the action of restoring force (which can be buoyancy, elasticity, gravity, or inertial force, etc.) (the tilted state returns to the vertical state). The second stop 51 and the abutment 41 separate, the second stop 51 passes over the abutment 41, the rotating waterway 7 rotates, the stop unit 5 rotates to the position of another abutment unit 4, and the water outlet of the waterway also rotates to the other water outlet of the pool cleaner to spray water, completing the reversal.

[0145] Repeat the above process to enable the pool cleaning machine to move and change direction within the pool.

[0146] Example 2

[0147] In this embodiment, the main structure of the pool cleaning machine is the same as that in Embodiment 1, except for the mechanical reversing structure.

[0148] A mechanical reversing structure for a pool cleaning machine, such as Figures 7-9 As shown, including,

[0149] A mechanical reversing structure is provided on the main body of the pool cleaning machine. The mechanical reversing structure is equipped with a stop unit 4; at least one set of stop units 5 can rotate relative to the main body of the pool cleaning machine / stop unit 4. When the pool cleaning machine moves, the stop unit 5 contacts the stop unit 4 so that the reversing device remains relatively stationary relative to the main body of the pool cleaning machine. After the pool cleaning machine gradually stabilizes during movement, it reaches relative stillness. During the reversing process of the pool cleaning machine, the stop unit 5 gradually separates from the stop unit 4 and rotates relative to the stop unit 4 to reverse direction until it is blocked by another stop unit again, and then moves forward to complete the reversing. Through the rotation of the stop unit 5, the stop unit 5 contacts or separates from the stop unit 4, so that the swing unit 1 remains in an inclined state or returns to a vertical state, realizing the reversing of the pool cleaning machine.

[0150] The main body of the pool cleaner includes an impeller and a rotating water channel 7. The impeller is connected to the motor inside the pool cleaner and serves as a drive device for sucking water from the bottom of the pool cleaner. The rotating water channel 7 is rotatably connected to the housing (upper housing 3) of the pool cleaner. The impeller is located inside the rotating water channel 7 and is coaxially arranged with the rotating water channel 7. When the impeller rotates, it drives the sucked water to rotate along the water channel of the rotating water channel 7, thus driving the rotating water channel 7 to rotate. The water is discharged from the outlet of the water channel of the rotating water channel 7, which has a volute structure.

[0151] In this embodiment, the aforementioned stop unit 5 is disposed on the outer extension component of the rotating waterway 7 of the pool cleaning machine. As the rotating waterway 7 rotates, the rotating waterway 7 drives the stop unit 5 to rotate. The stop unit 5 is fixedly connected to the outer extension component (outer extension plate) of the rotating waterway 7, and the stop unit 5 is located near the outer edge of the outer extension plate of the rotating waterway 7, so that the stop unit 5 can cooperate with the abutment unit 4 during rotation, contacting or disengaging. During operation, the impeller of the pool cleaner is constantly rotating under the action of the motor, which drives the rotating water channel 7 to rotate. Consequently, the stop unit 5 rotates as well. During its rotation, the stop unit 5 is blocked by the abutment unit 4 and stops rotating. The water outlet of the rotating water channel 7 corresponds to one water outlet on the pool cleaner housing, spraying water in one direction and propelling the pool cleaner forward. As the stop unit 5 gradually separates from the abutment unit 4, the stop unit 5 is no longer blocked and rotates. The rotating water channel 7 rotates, and the water outlet of the water channel rotates to another water outlet of the pool cleaner, spraying water from that outlet. The pool cleaner then moves in another direction, thus changing direction.

[0152] The abutment unit 4 is configured with at least two components. When the pool cleaner stops moving and reverses direction, the stop unit 5 gradually separates from the abutment unit 4 during the process of the swing unit 1 returning to the vertical position. Under the rotation of the rotating waterway 7, the stop unit 5 rotates to the next abutment position, where the abutment unit 4 blocks the stop unit 5, stopping its rotation. The pool cleaner then reverses direction and begins to move. During the movement of the pool cleaner, the swing unit 1 is subjected to water resistance and the force exerted by the rotation of the stop unit 5, resulting in a restoring force and force balance, maintaining a relatively stationary state relative to the main body of the pool cleaner. During the reversal process, the stop unit 5 rotates with the rotation of the rotating waterway 7. At each abutment position, the stop unit 5 is blocked by the abutment unit 4 at that position, reversing direction, and the pool cleaner then moves after the reversal.

[0153] The main body of the pool cleaning machine also includes a housing. The housing of the pool cleaning machine includes an upper housing 3 (including an upper housing 31 and an upper housing 32, which are fixedly connected) and a lower housing. In this embodiment, the abutting unit 4 is installed on the upper housing 3. The reversing device (abutting unit 4 and swinging unit 1) is rotatably connected to the upper housing 3 and can swing relative to the upper housing 3. The rotating water channel 7 is rotatably connected to the upper housing 3. The reversing device includes an abutting unit 4 and a swinging unit 1. The swinging unit 1 is rotatably connected to the upper housing 31 through a connection 2 (rotating shaft). The abutting unit 4 is connected to the swinging component unit. The abutting unit 4 swings with the swinging unit 1.

[0154] The top of the rotating waterway 7 is provided with a connector 8, and the rotating waterway 7 is connected to the upper housing 31 through the connector 8; the abutment unit 4 is oscillatingly connected to the connector 8 through the shaft 2, and the connector 8 is fixedly connected to the upper housing 31 or is part of the upper housing 31. The connector 8 (fixed member) can protrude from the upper housing 31.

[0155] The swing unit 1 is a swing component. This swing component can be a plate-shaped structure, a U-shaped structure, or other structures, depending on the actual needs. No specific requirements are specified here.

[0156] Depending on the structure of the swing unit 1 and the setting of the abutment unit 4, the stop unit 5 has different structures and settings.

[0157] In this embodiment, the swing unit 1 is a U-shaped swing plate, and the two ends of the U-shaped swing plate are respectively fixedly connected to one of the abutment units 4.

[0158] In this embodiment, as Figure 7-9As shown, the structure of the stop unit 5 is as follows: the stop unit 5 includes a first stop 50 and a second stop 51. The first stop 50 and the second stop 51 are located on the same side of the rotating waterway 7 and are arranged sequentially along the circumferential direction of the rotating waterway 7, so that the abutment component first contacts the first stop during the movement and / or reversal process, and after being resisted by the water flow, the abutment component passes the first stop 50 and contacts the second stop 51. Along the radial direction of the rotating waterway 7, the distance between the second stop 51 and the axis of the rotating waterway 7 can be less than the distance between the first stop 50 and the axis of the rotating waterway 7, or the distance between the second stop 51 and the axis of the rotating member 7 can be greater than the distance between the first stop 50 and the axis of the rotating waterway 7, or the distance between the second stop 51 and the axis of the rotating waterway 7 can be equal to the distance between the first stop 50 and the axis of the rotating waterway 7. The selection and setting are made according to actual needs, and no specific requirements are made here. Preferably, in this embodiment, the distance between the second stop 51 and the axis of the rotating waterway 7 is less than the distance between the first stop 50 and the axis of the rotating waterway 7. The first stop 50 and the second stop 51 are fixedly installed at any position on the bottom plate of the rotating waterway 7, and are arranged adjacent to each other. In the circumferential direction of the rotating waterway 7, the first stop... There is a certain circumferential gap between the first stop 50 and the second stop 51. In the radial direction of the rotating waterway 7, there is a certain radial gap between the first stop 50 and the second stop 51. The setting of the circumferential gap and the radial gap makes the first stop 50 and the second stop 51 staggered. When the swing unit 1 returns to the vertical state, the abutment unit 4 can be located in the space formed by the circumferential gap and the radial gap and extend out of the space, and swing freely in the space. Depending on the working state of the pool cleaning machine, whether the swing unit 1 is subjected to the thrust of the water flow, the abutment unit 4 can contact the first stop 50 or the second stop 51. The abutment unit 4 blocks the first stop 50 or the second stop 51, thereby blocking the rotation of the rotating waterway 7, so that the rotating waterway 7 no longer rotates, so that the swing unit 1 and the rotating waterway 7 remain relatively stationary.

[0159] The height of the second stop 51 can be greater than the height of the first stop 50, or the height of the second stop 51 can be greater than the height of the first stop 50, or the height of the second stop 51 can be the same as the height of the first stop 50. The choice and setting are made according to actual needs, and no specific requirements are specified here. In this embodiment, preferably, the height of the second stop 51 is greater than the height of the first stop 50.

[0160] In this embodiment, the position of the stop unit 5 is selected and set according to the position of the outlet of the rotating waterway 7, and is located on one side of the drain outlet so that the stop unit 5 will not interfere with the drainage. At the same time, the position of the stop unit 5 can be set according to the setting position of the abutment unit 4 and the correspondence between the outlet of the waterway and the outlet of the pool cleaner. When the stop unit 5 is blocked at the position of the abutment unit 4, the outlet of the waterway corresponds to the outlet of the pool cleaner and discharges, so as to change direction and move.

[0161] Both the first stop 50 and the second stop 51 are columnar structures, arranged along the axial direction of the rotating waterway 7. The first stop 50 and the second stop 51 are parallel to the axis of the rotating waterway 7. The cross-sectional shape of the first stop 50 and the second stop 51 can be circular, square, elliptical, or other irregular shapes, selected according to actual needs; no specific requirements are specified here. The height of the second stop 51 is greater than the height of the first stop 50, so that under the action of the rotational thrust of the first stop 50 and the thrust of the water flow, the abutment unit 4 passes over the first stop 50 and comes into contact with the second stop 51. The abutment unit 4 blocks the second stop 51, and the abutment unit 4 and the second stop 51 remain relatively stationary, allowing the pool cleaning machine to move.

[0162] In this embodiment, the aforementioned abutting unit 4 is fixedly connected to the swinging unit 1, and the abutting unit 4 is connected to the connecting shaft (rotating shaft) 2. The abutting unit 4 rotates relative to the housing under the action of the rotating shaft 2. The abutting unit 4 includes a pre-abutting member 42 and abutting member 41 connected to each other. The pre-abutting member 42 and abutting member 41 respectively cooperate with the corresponding first stop member 50 or second stop member 51 to block the rotation of the first stop member 50 or the rotation of the second stop member 51. The pre-abutment member 42 has a blocking part 402 and a through part 401 on the side facing the stop device 5. The blocking part 402 and the through part 401 are arranged sequentially along the axial direction of the pre-abutment member 42. The through part 401 corresponds to the position of the second stop member 51 so that the second stop member 51 can pass through the through part 401 when rotating. The pre-abutment member 42 will not interfere with the rotation of the second stop member 51. When the swing unit 1 is in a vertical state, the blocking part 402 corresponds at least partially to the first stop member 50 so that the blocking part 402 can contact the first stop member 50. The blocking part 402 realizes the abutment between the pre-abutment member 42 and the first stop member 50, and blocks the rotation of the first stop member 50.

[0163] During installation, the pre-abutment component 42 is coaxially arranged with the rotating shaft 2. The pre-abutment component 42 includes an abutment body 400, which is a cylindrical structure with a through hole along the axial direction, so that the rotating shaft 2 can be inserted into the through hole and connected to the abutment body 400. The rotating shaft 2 and the through hole are interference-fitted. Alternatively, the rotating shaft 2 is provided with external threads and the through hole is provided with internal threads, so that the abutment body 400 and the rotating shaft 2 are threadedly connected. Or other connection methods may be used, depending on actual needs. No specific requirements are specified here. The side of the abutment body 400 facing the stop unit 5 has a through portion 401. This through portion 401 is a groove structure, formed by a recess in the outer surface of the abutment body 400 along its axial direction. The size of the through portion 401 is larger than the size of the second stop member 51. When the swing unit 1 is in a vertical state and the second stop member 51 rotates, the second stop member 51 can pass through the through portion 401. The side of the abutment body 400 facing the stop unit 5 has a blocking portion 402. This blocking portion 402 is located on one side of the through portion 401, and its position roughly corresponds to the position of the first stop member 50. The blocking portion 402 has a plate-like structure, and one end of the blocking portion 402 is connected to the abutment body. 400 is fixedly connected, preferably integrally formed. The blocking part 402 is arranged along the length direction of the first stop 50. When the swing unit 1 is in a vertical state, the blocking part 402 is arranged parallel to the first stop 50. The length of the blocking part 402 is greater than the distance from the top of the first stop 50 to the body 400. That is, in the vertical direction, the projection of the blocking part 402 overlaps with the projection of the first stop 50, so that when the first stop 50 rotates, the blocking part 402 blocks the first stop 50. The blocking part 402 and the first stop 50 are in contact and cooperate to block the rotation of the rotating waterway 7. The rotating part 7 and the swing unit 1 remain relatively stationary.

[0164] In addition, the structure of the abutting body 400 can also be: the abutting body 400 includes a first connector and a second connector, both of which are fixedly connected to the rotating shaft 2, and both of which are annular structures with a certain length. When the first connector and the second connector are installed on the rotating shaft 2 at intervals, the gap between the first connector and the second connector forms a through part 401. The blocking part 402 is fixedly connected to the second connector and is located on the side of the second connector facing the first stop 50.

[0165] The abutment 41 is located on the opposite side of the pre-abutment 42 where the blocking part 402 is located. The abutment 41 is connected to the swing unit 1 of the reversing device. When the blocking part 402 disengages from the first stop 50, the abutment 41 contacts the second stop 51 to keep the abutment 41 blocking the second stop 51 when the pool cleaner moves, thus keeping the pool cleaner in a relatively stationary state during movement. The abutment 41 and the blocking part 402 are arranged opposite each other. The abutment 41 serves as a connector and is fixedly connected to the swing unit 1, connecting the swing unit 1 and the abutment unit 4 together. At the same time, the abutment 41 serves as a blocker. When the blocking part 402 disengages from the first stop 50, the abutment 41 contacts the second stop 51, blocking the rotation of the second stop 51. The abutment 41 has a curved surface structure, and its cross-sectional shape is adapted to the outer surface shape of the pre-abutment 42. It protrudes from the outer surface of the pre-abutment 42. The abutment 41 is fixedly connected to the pre-abutment 42. The area of ​​the abutment 41 covering the pre-abutment 42 is not less than half of the outer surface area of ​​the pre-abutment 42, so that after the blocking part 402 is disengaged from the first stop 50, part of the abutment 41 can contact the second stop 51 to block the rotation of the second stop 51.

[0166] During the movement of the pool cleaning machine, the tilt direction of the swing unit 1 is always opposite to the direction of movement. The swing unit 1 maintains balance under its own buoyancy and water resistance through the contact cooperation of the stop unit 5 and the abutment unit 4. When the pool cleaning machine stops moving due to contact with the wall or encountering an obstacle, the water resistance disappears, and the swing unit 1 returns to a vertical position under its own buoyancy. The rotating water channel 7 rotates, and the stop unit 5 rotates accordingly. The pool cleaning machine changes direction, the direction of water resistance on the swing unit 1 changes, and the tilt direction of the swing unit 1 changes. During rotation, the moving unit 5 needs to contact and be blocked by other abutting units 4 at other abutting positions, while simultaneously causing the swinging member 1 to be in an inclined state. Therefore, in this embodiment, the reversing device is provided with two abutting units 4, which are located on both sides of the rotating waterway 7. The swinging unit 1 has a U-shaped structure. Preferably, the two abutting units 4 are symmetrically arranged on both sides of the rotating waterway 7, and the two abutting units 4 are located on the same straight line and at two abutting positions. The stopping device 5 can contact the abutting unit 4 at one abutting position of the swinging unit 1 by rotating 180°.

[0167] A swimming pool cleaning machine includes the aforementioned mechanical reversing structure. A swing unit 1 is rotatably connected to an upper housing 3 via a rotating shaft 2. The swing unit 1 is located outside the upper housing 3. A stop unit 5 is located inside the upper housing 3. The contact or disengagement between the stop device 5 and the abutment unit 4 occurs within the upper housing 3. A rotating water channel 7 is located inside the upper housing 3 and is rotatably connected to the upper housing 3 via a rotating component 8. The upper housing 3 is provided with two or more water outlets for drainage.

[0168] When the pool cleaning machine is cleaning the pool, during its movement, the swinging component unit is subjected to its own buoyancy and water resistance. Through the contact and cooperation between the stop unit 5 and the abutment unit 4, the forces are balanced, and the swinging unit 1 remains relatively stationary relative to the main body of the pool cleaning machine. The pool cleaning machine has two working states, as described below:

[0169] As one specific implementation method under one working state, the reversing process of the pool cleaner under the action of the mechanical reversing mechanism is as follows: When the pool cleaner is working, the stop unit 5 rotates. When it rotates to the first abutting position, the first stop 50 and the pre-abutting member 42 contact and are in a blocking state. The blocking part 402 contacts the first stop 50, and the blocking part 402 restricts the rotation of the first stop 50. The water outlet of the water channel corresponds to one of the multiple water outlets of the pool cleaner. The impeller rotates and sucks the sewage at the bottom of the pool cleaner. The sewage enters the lower housing. Inside the filter box, wastewater is filtered. The filtered water enters the rotating water channel 7 and flows along it, causing the channel to rotate. The water is then discharged from the outlet of the rotating water channel 7. If the pool cleaner is not moving at this time due to contact with a wall or encountering an obstacle, the swing unit 1 swings under the continuous action of the rotating thrust of the stop unit 5 (e.g., changing from a vertical to an inclined state). Here, the abutment 41 tends to block (i.e., the abutment 41 and the second stop 51 tend to interfere with each other). The rotational force of the stop device 5 is transmitted through the first... A stop 50 is applied to the pre-abutment member 42. Under the action of rotational thrust, the first stop 50 separates from the pre-abutment member 42, and the blocking part 402 passes over the first stop 50. The stop unit 5 rotates, and the second stop 51 moves toward the abutment member 41. The second stop 51 and the abutment member 41 are in an interference blocking state. Since the pool cleaning machine is in a non-moving state at this time, there is no water resistance pressing on the swing unit 1. The swing unit 1 resets under the action of restoring force (which can be buoyancy, elasticity, or gravity, etc.) (for example, the swing unit 1 returns to a vertical state). The second stop 50... 1. The first stop 50 and the second stop 51 are separated from the pre-abutment 42 and the abutment 41. The stop unit 5 continues to rotate. When it rotates to another abutment position, the first stop 50 and the pre-abutment 42 at this abutment position are blocked. At this time, due to the rotation of the stop unit 5, the outlet direction of the water channel has changed and corresponds to another outlet of the pool cleaner. The pool cleaner changes its direction of travel, gets away from the pool wall or obstacle, and realizes reversing its movement.

[0170] As another specific implementation method under one working state, the process of the pool cleaning machine changing direction under the mechanical reversing action is as follows: When the pool cleaning machine is working, the stop unit 5 rotates. When it rotates to a stop position, the first stop 50 and the pre-stop 42 contact and are in the blocking position. The water outlet of the water channel basically corresponds to one of the water outlets of the pool cleaning machine. Water is sprayed from the water outlet of the pool cleaning machine, which propels the pool cleaning machine to move. During the movement of the pool cleaning machine (due to the thrust generated by water resistance), under the action of the rotational thrust of the stop unit 5 and the water resistance, the swing unit 1 swings, causing the first stop 50 to separate from the pre-abutment member 42. The blocking part 402 passes over the first stop 50. At the same time, the second stop 51 contacts the abutment member 41, and the abutment member 41 blocks the rotation of the second stop 51. The second stop 51 and the abutment member 41 interfere (blocking state) (e.g., causing the swing member 1 to be in (maintain) an inclined state). The rotation of the rotating water channel 7 is restricted, the stop unit 5 stops rotating, and under the continuous pushing pressure of the water resistance, the swing member 1 maintains... The pool cleaner moves in one direction while the abutment 41 remains in a tilted position. When the pool cleaner stops moving (touches the wall or encounters an obstacle), the water resistance disappears, that is, the thrust of the water flow acting on the swinging member 1 disappears. At this time, the swinging unit 1 resets under the action of restoring force (which can be buoyancy, elasticity, or gravity, etc.) (the tilted state returns to the vertical state). The second stop 51 separates from the abutment 41. The second stop 51 passes through the through-hole 401, the rotating waterway 7 rotates, the stop unit 5 rotates to another abutment position, and the water outlet of the waterway also rotates to another water outlet of the pool cleaner to spray water, completing the reversal.

[0171] Repeat the above process to enable the pool cleaning machine to move and change direction within the pool.

[0172] In the two working states described above, when the second stop 51 and the abutment 41 maintain the interference blocking state, the swing unit 1 is in an inclined state.

[0173] By adopting the above technical solution, it has a stop device (stop unit 5) and a stop component (stop unit 4) installed on the swing component. The stop device is installed on the rotating component of the pool cleaner and rotates with the rotation of the rotating component. The swing component is connected to the housing of the pool cleaner and can swing relative to the housing. Through the rotation of the stop device, the stop device can contact or disengage from the stop component, so that the stop device contacts the stop component during the movement of the pool cleaner. When the pool cleaner touches the wall or encounters an obstacle, the swing component returns to the vertical state to realize the reversal. The structure is simple, the installation is convenient, and the operation is stable.

[0174] According to the structure of the swinging component, the stopping device has a first stop (first stop 50) and a second stop (second stop 51). The first stop and the second stop are located on the same side of the rotating component. The height of the first stop is less than the height of the second stop, so that the abutment component can contact the second stop after passing the first stop. This ensures that the second stop contacts the abutment component during the movement of the pool cleaning machine, ensuring that the pool cleaning machine is in a stable state during movement and preventing the swinging component from detaching from the stop when the swinging angle is too large.

[0175] When stop one and stop two are located on both sides of the rotating part, stop one and stop two have a height difference in the vertical direction. Stop one contacts the abutment part one (pre-abutment part 42) from above. After stop one passes the abutment part one, stop two contacts the abutment part two (abutment part 41) from below. This ensures that the stop device contacts the abutment component during the movement of the pool cleaning machine, ensuring that the pool cleaning machine is in a stable state when it moves, and preventing the swinging part from detaching from the stop when the swinging angle is too large.

[0176] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A mechanical reversing structure for a swimming pool cleaning machine, characterized in that, The mechanical reversing structure includes: A swing unit is connected to the main body of the pool cleaner and can swing relative to the main body of the pool cleaner; At least one abutting unit is connected to the swinging unit; At least one stop unit is rotatably connected to the main body of the pool cleaning machine; During the operation of the pool cleaning machine, the stop unit is located at a position that interferes with or disengages from the abutment unit. The stop unit includes a first stop and a second stop. The first stop and the second stop are arranged adjacent to each other. The first stop and the second stop interact with different abutment positions or different abutment components of the same abutment unit and are in an interference or disengagement state. During the rotation of the stop unit, the abutment unit first passes the position of the first stop and then passes the position of the second stop. The first stop and the second stop are located on different circumferences, and the height of the first stop is different from the height of the second stop.

2. The mechanical reversing structure according to claim 1, characterized in that, When the pool cleaning machine moves, the swing unit is subjected to water resistance and tilts backward relative to the pool cleaning machine, and the abutment unit and the stop unit are in an interfering state.

3. The mechanical reversing structure according to claim 1, characterized in that, When the movement of the pool cleaning machine is obstructed, under the rotational force of the stop unit, the stop unit rotates to a position that interferes with another abutting unit.

4. The mechanical reversing structure according to claim 1, characterized in that, When the movement of the pool cleaning machine is obstructed and the abutting unit and the stopping unit are in an interfering state, the abutting unit can disengage from the stopping unit under the rotational force of the stopping unit.

5. The mechanical reversing structure according to claim 1, characterized in that, When the movement of the pool cleaning machine is obstructed and the swing unit returns from an inclined state to a position perpendicular to the main body of the pool cleaning machine, the stop unit is in a state of disengagement from the abutment unit.

6. The mechanical reversing structure according to claim 1, characterized in that, The stop unit is connected to the main body of the pool cleaning machine via a rotating component, which is either the rotating water channel of the pool cleaning machine or the rotating component is fixedly connected to the rotating water channel of the pool cleaning machine. The rotating waterway is the water outlet channel of the pool cleaner and is rotatably connected to the main body of the pool cleaner. The different positions of the water outlet channel correspond to different directions of movement of the pool cleaning machine.

7. The mechanical reversing structure according to claim 6, characterized in that, The circumference is centered on the rotation center of the rotating waterway.

8. The mechanical reversing structure according to claim 7, characterized in that, The highest point of the first stop in the vertical direction is lower than the highest point of the second stop in the vertical direction.

9. The mechanical reversing structure according to claim 1, characterized in that, When the first stop and the abutting unit change from the interference state to the disengagement state, the second stop and the abutting unit change from the disengagement state to the interference state.

10. The mechanical reversing structure according to claim 1, characterized in that, Under the rotational force of the stop unit, the first stop member and the abutment unit can move from the interference position to the disengagement position.

11. The mechanical reversing structure according to claim 1, characterized in that, When the pool cleaning machine moves, the swing unit is subjected to water resistance and tilts backward relative to the pool cleaning machine, and the second stop is located at a position that interferes with the abutment unit.

12. The mechanical reversing structure according to claim 1, characterized in that, When the movement of the pool cleaning machine is obstructed and the swing unit returns from an inclined state to a position perpendicular to the main body of the pool cleaning machine, the first stop and the second stop are in a state of disengagement from the abutment unit.

13. The mechanical reversing structure according to claim 1, characterized in that, Under the rotational force of the stop unit, the first stop member moves from the position interfering with the abutment unit to the position of disengagement, and the second stop member moves from the position of disengagement from the abutment unit to the position of interference. (1) When the pool cleaning machine is obstructed, the swing unit returns to a vertical position, the second stop disengages from the abutment unit, and the stop unit rotates until the first or second stop is in a state of interference with another abutment unit; and / or (2) When the pool cleaner is in motion, and is simultaneously subjected to the resistance of water, the swing unit remains tilted backward relative to the pool cleaner in its vertical plane, and the second stop is in a state of interference with the abutment unit.

14. The mechanical reversing structure according to claim 1, characterized in that, The mechanical reversing structure includes two abutment units.

15. The mechanical reversing structure according to claim 14, characterized in that, The abutting unit is oscillatingly connected to the main body of the pool cleaning machine; the abutting unit is fixedly connected to the oscillating unit.

16. The mechanical reversing structure according to claim 1 or 14, characterized in that, The abutting unit includes a pre-abutting component and an abutting component, the pre-abutting component being fixedly connected to the abutting component; the swinging of the swinging unit corresponds to the movement of the pre-abutting component and the abutting component.

17. The mechanical reversing structure according to claim 16, characterized in that, The lowest point of the pre-abutment member in the vertical direction is not at the same height as the lowest point of the abutment member in the vertical direction.

18. The mechanical reversing structure according to claim 16, characterized in that, The lowest point of the abutment in the vertical direction is higher than the lowest point of the pre-abutment in the vertical direction.

19. The mechanical reversing structure according to claim 16, characterized in that, The abutting component and / or pre-abutting component are oscillatingly connected to the main body of the pool cleaning machine; The abutting member and / or pre-abutting member are fixedly connected to the swing unit.

20. The mechanical reversing structure according to claim 16, characterized in that, The pre-abutment member interacts with the first stop member, either in an interference position or disengaged; the abutment member interacts with the second stop member, either in an interference position or disengaged.

21. The mechanical reversing structure according to claim 1, characterized in that, When the pool cleaning machine is in motion, the swing unit tilts backward relative to the main body of the pool cleaning machine; When the movement of the pool cleaning machine is obstructed, the state of the swing unit is selected from (i) tilting backward relative to the main body of the pool cleaning machine; (ii) being perpendicular to the main body of the pool cleaning machine.

22. The mechanical reversing structure according to claim 21, characterized in that, The swing unit is reset from the tilted state to the vertical state by buoyancy, gravity or elasticity.

23. The mechanical reversing structure according to claim 1, 14, or 21, characterized in that, The swing unit includes at least one resistance plate, which is connected to the abutment unit, and the connection method is selected from one of the following: Different resistance plates are connected to different abutment units, or one resistance plate is connected to different abutment units, or one resistance plate is connected to the same abutment unit.

24. The mechanical reversing structure according to claim 23, characterized in that, The resistance plate is fixedly connected to the abutting unit; the abutting unit is oscillatingly connected to the main body of the pool cleaning machine.

25. The mechanical reversing structure according to claim 23, characterized in that, The swing unit includes a U-shaped resistance plate, with its two ends connected to different abutment units.

26. The mechanical reversing structure according to claim 1, characterized in that, The mechanical reversing structure includes: (i) A U-shaped resistance plate; (ii) Two abutment units, each abutment unit comprising a pre-abutment element and an abutment element; (iii) A stop unit, including a first stop and a second stop; The two ends of the U-shaped resistance plate are respectively fixedly connected to one of the abutment units; The abutment unit is oscillatingly connected to the main body of the pool cleaning machine; Both the first stop and the second stop can rotate relative to the pool cleaning machine; During the rotation of the stop unit, the first stop member is in a state of interference with or disengagement from the pre-abutment member; the second stop member is in a state of interference with or disengagement from the abutment member.

27. The mechanical reversing structure according to claim 26, characterized in that, The end of the U-shaped resistance plate is fixedly connected to the abutment, the abutment is fixedly connected to the pre-abutment, and the pre-abutment is oscillatingly connected to the main body of the pool cleaning machine via a shaft.

28. The mechanical reversing structure according to claim 26, characterized in that, The first stop and the second stop are fixedly connected to the rotating water channel of the pool cleaning machine and are arranged adjacent to each other; The first stop and the second stop are located on different circumferences, and the highest point of the first stop in the vertical direction is lower than the highest point of the second stop in the vertical direction. When the U-shaped resistance plate is in a vertical position, the lowest point of the abutment in the vertical direction is higher than the lowest point of the pre-abutment in the vertical direction.

29. A swimming pool cleaning machine, characterized in that, It includes one of the mechanical reversing structures according to any one of claims 1 to 28.

30. The swimming pool cleaning machine according to claim 29, characterized in that, The pool cleaning machine includes an upper shell and a lower shell; the upper shell and the lower shell are detachably connected; the upper shell is provided with a rotating water channel, and water flows through the inlet of the lower shell and is discharged through the outlet of the water channel; When the pool cleaning machine is running, the rotating waterway rotates under the action of the power unit.

31. The swimming pool cleaning machine according to claim 30, characterized in that, The swing unit of the mechanical reversing structure is fixedly connected to the abutting unit, and the abutting unit is swing-connected to the upper housing.

32. The swimming pool cleaning machine according to claim 30, characterized in that, The upper shell is provided with an opening corresponding to the outlet of the rotating water channel.

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