Flow guide cover for automatic pool cleaning device

Abstract

The utility model discloses a flow guide cover for an automatic pool cleaning device. The flow guide cover comprises a central connecting part; the first annular side wall and the second annular side wall surround the central connecting part; the plurality of first flow deflectors are arranged between the central connecting part and the first annular side wall, and the heads and the tails of the first flow deflectors are respectively connected with the central connecting part and the first annular side wall, so that a first flow guide channel is formed between every two adjacent first flow deflectors; the second flow deflectors are arranged between the first annular side wall and the second annular side wall, the heads and the tails of the second flow deflectors are connected with the first annular side wall and the second annular side wall respectively, and a second flow guide channel is formed between every two adjacent second flow deflectors.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of pool cleaning, and in particular, to a fairing for a pool cleaning robot. BACKGROUND

[0002] Pool cleaning robots are generally used for cleaning a pool, for example, collecting and cleaning trash / debris on the bottom, sidewall and / or water surface of a pool such as a swimming pool, so as to filter and purify the water in the pool. SUMMARY

[0003] According to an aspect of the present disclosure, a fairing for a pool cleaning robot is provided, the fairing comprising: a central connection portion; a first annular sidewall and a second annular sidewall surrounding the central connection portion; a plurality of first fairing pieces arranged between the central connection portion and the first annular sidewall, and the first fairing pieces being connected to the central connection portion and the first annular sidewall at their respective first and second ends, thereby forming a first fairing passage between adjacent two first fairing pieces; and a plurality of second fairing pieces arranged between the first annular sidewall and the second annular sidewall, and the second fairing pieces being connected to the first annular sidewall and the second annular sidewall at their respective first and second ends, thereby forming a second fairing passage between adjacent two second fairing pieces.

[0004] According to at least one embodiment of the present disclosure, the first fairing pieces are deflected with a first curvature relative to a first direction and with a second curvature relative to a second direction; and the second fairing pieces are deflected with a third curvature relative to the first direction and with a fourth curvature relative to the second direction.

[0005] According to at least one embodiment of the present disclosure, the first direction is a radial direction of the fairing, and the second direction is an axial direction of the fairing.

[0006] According to at least one embodiment of the present disclosure, the first curvature is greater than the third curvature, and the second curvature is greater than the fourth curvature.

[0007] According to at least one embodiment of the present disclosure, based on a projection of the fairing in the second direction, an area of the first fairing passage is less than an area of the second fairing passage.

[0008] According to at least one embodiment of the present disclosure, a distance between adjacent two first fairing pieces and / or adjacent two second fairing pieces increases with an increase in distance from the central connection portion.

[0009] According to at least one embodiment of the present disclosure, a profile size of the second fairing pieces increases with an increase in distance from the first annular sidewall in the first direction.

[0010] According to at least one embodiment of the present disclosure, the profile size of the connection between the first guide vane and the first annular sidewall is larger than the profile size of the connection between the second guide vane and the first annular sidewall.

[0011] According to at least one embodiment of the present disclosure, the first guide vane and the second guide vane deflect in the same direction relative to the first direction, and the first guide vane and the second guide vane deflect in the same direction relative to the second direction.

[0012] According to at least one embodiment of the present disclosure, the side portion of the fairing presents a shape of a boss; the upper portion of the boss is formed by the second annular sidewall, and the lower portion of the boss is formed by an annular interface for mounting the fairing to a mounting bracket.

[0013] According to at least one embodiment of the present disclosure, the number of the plurality of first guide vanes is less than the number of the plurality of second guide vanes.

[0014] According to an aspect of the present disclosure, there is provided a pool automatic cleaning device, comprising a pump motor and an impeller, the pump motor being configured to drive the impeller to rotate, characterized in that the pool automatic cleaning device further comprises the above-mentioned fairing, the fairing being arranged above the impeller. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figures 1A-1C The external shape and internal structure of a pool automatic cleaning device according to an embodiment of the present disclosure are schematically shown respectively.

[0016] Figures 2A-2D The structure of a fairing for a pool automatic cleaning device according to an embodiment of the present disclosure is schematically shown.

[0017] Figure 3 The connection structure of a fairing for a pool automatic cleaning device and a mounting bracket according to an embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0018] The detailed description set forth below, in connection with the appended drawings, is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein can be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of the various concepts. However, it will be apparent to those skilled in the art that these concepts can be practiced without these specific details.

[0019] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0020] Furthermore, terms such as "first," "second," and "third," which relate to sequence, are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with terms such as "first," "second," and "third," which relate to sequence, may explicitly or implicitly include at least one of those features. In the description of this disclosure, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] Furthermore, dimensions may be exaggerated in the accompanying drawings for clarity and are not drawn to scale. Throughout the drawings, the same reference numerals generally refer to the same elements.

[0022] Figure 1A The diagram schematically illustrates the external shape of an automatic pool cleaning device 10 according to an embodiment of the present disclosure. It can perform cleaning operations on the bottom, walls, water, and surface of a pool (e.g., a swimming pool) as needed, for example, to remove debris from the water, bottom, and surface, and to clean dirt from the pool bottom and walls. Figure 1A As shown, the automatic water tank cleaning device 10 may include structures / components such as a housing 110, a traveling mechanism 120, and a cleaning mechanism 130. As an example, control circuits such as a control unit and an inertial measurement unit (IMU) may be installed inside the housing 10. A drive mechanism such as a water pump and a drive motor may be provided, and a filtration mechanism, such as a filter basket, may also be included to filter and purify the water entering the filter basket through the inlet, removing impurities, and discharging the cleaned water out of the automatic water tank cleaning device through the outlet. As an example, Figure 1A The diagram shows that the traveling mechanism 120 may include tracked traveling mechanisms on both sides of the lower part of the automatic pool cleaning device 10, allowing the pool cleaning device to travel in water, at the bottom of the pool, or on the pool wall to perform corresponding cleaning operations. However, the traveling mechanism is not limited to... Figure 1AThe type shown can include, for example, a wheeled travel mechanism, without limitation. As an example, the automatic pool cleaning device 10 may also include a spray mechanism, such that when the automatic pool cleaning device 10 travels along the pool wall, it can utilize water spray nozzles (e.g., from its nozzle direction and the top of the automatic pool cleaning device 10 body) to spray water from its nozzle direction. Figure 1A The pressure generated by the water flow direction of the nozzle 140 (as shown) keeps the water adhering to the pool wall, maintaining stability during movement; or, the thrust generated by the water flow from a nozzle whose water flow direction is opposite to the movement direction can be used to move the water surface. Furthermore, as... Figure 1A As shown, the cleaning mechanism 130 may include components such as roller brushes on the front and / or rear sides of the automatic pool cleaning device.

[0023] According to one or more embodiments, the automatic pool cleaning device 10 can be configured to drive the traveling mechanism 120 in a specified mode under the control of an internal control unit, so that the automatic pool cleaning device 10 moves along a specific trajectory or toward a specific direction on the bottom, walls, water, and surface of the pool; at the same time, the cleaning mechanism 130 can be activated to clean up garbage, dirt, and grime on the bottom, walls, water, and / or surface of the pool, so that it is sucked into the filter basket of the automatic pool cleaning device along with the water flow, filtered through the filter basket, trapping the garbage, dirt, and grime in the filter basket, and the cleaned water is discharged from the automatic pool cleaning device, thereby achieving the cleaning of the pool.

[0024] Figure 1A The automatic water tank cleaning device 10 shown is merely an example. Those skilled in the art can make changes to it in one or more aspects such as appearance, structure, layout, components, and functions according to actual needs, without departing from the principles of this disclosure.

[0025] Figure 1B Schematic illustration Figure 1A The internal structure of the automatic pool cleaning device 10 shown is displayed after the top cover and part of the housing have been removed. Figure 1B As shown, inside the housing of the automatic water tank cleaning device 10, a filtration mechanism 160 (e.g., a filter basket), a water spraying mechanism 170, and a flow guide 180 are provided. As an example, the water spraying mechanism 170 includes a pump motor and an impeller. The pump motor is configured to drive the impeller to rotate, thereby generating a suction force that draws water from the tank into the filtration mechanism 160 through the inlet. The water filtered by the filtration mechanism 160 is then guided by the flow guide 180 and flows through, for example... Figure 1A The water jet 140 shown discharges into the pool.

[0026] Figure 1C The diagram schematically illustrates a portion of the internal structure of an automatic pool cleaning device, omitting components that are not related to the principles of this disclosure. Figure 1CThe image shows the impeller 190 after a shroud 180 has been removed.

[0027] According to embodiments of this disclosure, the water sprayed by the automatic pool cleaning device is guided by a flow guide shroud, directing the scattered water flow generated when the impeller rotates to a specific direction and minimizing the resistance of the flow guide shroud to the water flow, so that the direction of the sprayed water flow remains stable. This allows the automatic pool cleaning device to better control its posture and reduces the power consumption of the spray mechanism.

[0028] Figure 2A This is a schematic perspective view of a fairing according to an embodiment of the present disclosure. Figure 2A As shown, the flow guide shroud 180 includes: a central connecting portion 210; a first annular sidewall 220 and a second annular sidewall 230 surrounding the central connecting portion 210; a plurality of first flow guide vanes 240 disposed between the central connecting portion 210 and the first annular sidewall 220, with the head and tail of the first flow guide vanes 240 respectively connected to the central connecting portion 210 and the first annular sidewall 220, thereby forming a first flow guide channel 260 between two adjacent first flow guide vanes 240; and a plurality of second flow guide vanes 250 disposed between the first annular sidewall 220 and the second annular sidewall 230, with the head and tail of the second flow guide vanes 250 respectively connected to the first annular sidewall 220 and the second annular sidewall 230, thereby forming a second flow guide channel 280 between two adjacent second flow guide vanes 250.

[0029] Figure 2B This is a schematic top view of the fairing according to an embodiment of the present disclosure. Figure 2B As shown, the first guide vane 240 is curved, meaning its shape deflects from the central connecting portion 210 to the first annular sidewall 220. Similarly, as... Figure 2B As shown, the shape of the second guide vane 250 is also curved, that is, the shape of the second guide vane 250 is deflected from the first annular sidewall 220 to the second annular sidewall 230.

[0030] As an example, the first deflector is deflected with a first curvature relative to a first direction (e.g., the radial direction of the fairing 180) and with a second curvature relative to a second direction (e.g., the axial direction of the fairing 180).

[0031] As an example, the second deflector deflects with a third curvature relative to the first direction and with a fourth curvature relative to the second direction.

[0032] As an example, the first direction is the radial direction of the fairing, and the second direction is the axial direction of the fairing.

[0033] As an example, the first curvature is greater than the third curvature, and the second curvature is greater than the fourth curvature.

[0034] Figure 2C This is a schematic bottom view of the fairing according to an embodiment of the present disclosure. Figure 2C As shown, based on the projection of the flow guide in the axial direction, the area of ​​the first flow guide channel 260 formed between two adjacent first flow guide plates 240 is smaller than the area of ​​the second flow guide channel 280 formed between two adjacent second flow guide plates 250.

[0035] As an example, based on the projection of the flow guide in the axial direction, the area of ​​the first flow guide channel is smaller than the area of ​​the second flow guide channel.

[0036] According to embodiments of this disclosure, such as Figures 2A-2C As shown, the distance between two adjacent first guide vanes 240 increases with the increase of the distance from the central connection portion 210.

[0037] As an example, such as Figures 2A-2C As shown, the distance between two adjacent second guide vanes 250 increases with the increase of the distance from the central connection portion 210.

[0038] As an example, such as Figures 2A-2C As shown, the outline size of the second guide vane 250 increases with the increase of the distance from the first annular sidewall 220 in the radial direction of the guide vane.

[0039] As an example, such as Figures 2A-2C As shown, the outline dimension of the connection between the first guide vane 240 and the first annular sidewall 220 is greater than the outline dimension of the connection between the second guide vane 250 and the first annular sidewall 220.

[0040] As an example, such as Figures 2A-2C As shown, the first guide vane 240 and the second guide vane 250 deflect in the same direction relative to the radial direction of the guide shield.

[0041] As an example, such as Figures 2A-2C As shown, the first guide vane 240 and the second guide vane 250 deflect in the same direction relative to the axial direction of the guide shield.

[0042] As an example, such as Figures 2A-2D As shown, the number of first guide vanes 240 is less than the number of second guide vanes 250.

[0043] Figure 2D This is a schematic side view of the fairing according to an embodiment of the present disclosure. Figure 2DAs shown, the side of the flow guide 180 is shaped like a boss. The upper part of the boss is formed by a second annular sidewall 230, and the lower part of the boss is formed by an annular interface 290, which is used to install the flow guide onto the mounting bracket of the automatic water tank device.

[0044] As an example, Figure 3 The connection structure between the fairing 180 and the mounting bracket 300 is schematically shown. For example... Figure 3 As shown, the flow guide shroud 180 is mounted on the mounting bracket 300 of the automatic water tank device via the annular interface 290.

[0045] According to one aspect of this disclosure, an automatic water tank cleaning device is also provided, including a pump motor and an impeller, wherein the pump motor is configured to drive the impeller to rotate, and wherein the automatic water tank cleaning device further includes the aforementioned flow guide.

[0046] As an example, such as Figure 1C As shown, the deflector 180 is positioned above the impeller 190.

[0047] According to embodiments of this disclosure, a double-ring guide shroud is used to guide the water sprayed by the automatic water cleaning device, directing the scattered water flow generated when the impeller rotates in a specific direction. The double-ring guide shroud includes a central connecting portion; a first annular sidewall and a second annular sidewall surrounding the central connecting portion; a plurality of first guide vanes disposed between the central connecting portion and the first annular sidewall, with the beginning and end of each first guide vane connected to the central connecting portion and the first annular sidewall, thereby forming a first guide channel between adjacent first guide vanes; and a plurality of second guide vanes disposed between the first annular sidewall and the second annular sidewall, with the beginning and end of each second guide vane connected to the first annular sidewall and the second annular sidewall, thereby forming a second guide channel between adjacent second guide vanes.

[0048] According to the above embodiments of this disclosure, by designing the shapes of the first guide vane and / or the second guide vane to deflect along the radial and axial directions of the guide shroud, not only can the resistance of the guide vane to the sprayed water flow be reduced, but the direction of the sprayed water flow can also be adjusted, so that the scattered water flow generated by the impeller can be concentrated, thereby keeping the direction of the sprayed water flow stable. This allows for better control of the position of the automatic water cleaning device and reduces the power consumption of the spray mechanism.

[0049] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "linking," "fixing," and "coupling," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communicative connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0050] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A flow guide cover for an automatic water tank cleaning device, characterized in that, The flow deflector includes: Central connecting part; The first and second annular sidewalls surrounding the central connecting portion; A plurality of first guide vanes are disposed between the central connecting portion and the first annular sidewall, with the head and tail of each first guide vane connected to the central connecting portion and the first annular sidewall, respectively, thereby forming a first guide channel between two adjacent first guide vanes; and Multiple second guide vanes are disposed between the first annular sidewall and the second annular sidewall, and the beginning and end of the second guide vanes are respectively connected to the first annular sidewall and the second annular sidewall, thereby forming a second guide channel between two adjacent second guide vanes.

2. The flow deflector according to claim 1, wherein, The first guide vane deflects with a first curvature relative to a first direction and with a second curvature relative to a second direction; the second guide vane deflects with a third curvature relative to the first direction and with a fourth curvature relative to the second direction.

3. The flow deflector according to claim 2, wherein, The first direction is the radial direction of the shroud, and the second direction is the axial direction of the shroud.

4. The flow deflector according to claim 2, wherein, The first curvature is greater than the third curvature, and the second curvature is greater than the fourth curvature.

5. The flow deflector according to claim 2, wherein, Based on the projection of the flow guide in the second direction, the area of ​​the first flow guide channel is smaller than the area of ​​the second flow guide channel.

6. The air deflector according to claim 1, wherein, The distance between two adjacent first guide vanes and / or two adjacent second guide vanes increases with the increase of the distance from the central connection portion.

7. The flow deflector according to claim 3, wherein, The outline dimensions of the second guide vane increase with the increase of the distance from the first annular sidewall in the first direction.

8. The fairing according to claim 3, wherein, The outline dimension of the connection between the first guide vane and the first annular sidewall is greater than the outline dimension of the connection between the second guide vane and the first annular sidewall.

9. The flow deflector according to claim 2, wherein, The first guide vane and the second guide vane deflect in the same direction relative to the first direction, and the first guide vane and the second guide vane deflect in the same direction relative to the second direction.

10. The fairing according to any one of claims 1-9, wherein, The side of the deflector is shaped like a boss; the upper part of the boss is formed by the second annular sidewall, and the lower part of the boss is formed by an annular interface, which is used to install the deflector onto the mounting bracket.

11. An automatic water tank cleaning device, comprising a pump motor and an impeller, wherein the pump motor is configured to drive the impeller to rotate, characterized in that, The automatic water tank cleaning device further includes a flow guide shroud according to any one of claims 1-10, the flow guide shroud being disposed above the impeller.

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