Jet flow assembly and cleaning equipment

Abstract

The invention provides a jet flow assembly and cleaning equipment, the jet flow assembly comprises a spray head, a first fluid channel and a fluid conveying assembly, the spray head can be arranged near a first opening of the cleaning equipment, the spray head is provided with a cavity, a fluid inlet and a nozzle, the fluid inlet and the nozzle are communicated with the cavity, and the fluid channel is communicated with the fluid inlet; the fluid conveying assembly can convey fluid into the cavity of the spray head through the first fluid channel, the fluid can be sprayed through the nozzle finally, when the nozzle sprays towards the first opening, the fluid sprays towards the water surface at the first opening to drive garbage on the water surface to quickly flow to the first opening, and when the nozzle sprays back to the first opening, the garbage on the water surface is sprayed out. The garbage can be gathered on the moving path of the cleaning equipment, so that the speed of the garbage entering the first opening is effectively increased, and the water surface garbage cleaning efficiency of the cleaning equipment is remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a jet flow assembly and a cleaning equipment. BACKGROUND

[0002] A pool cleaning robot is a device capable of automatically cleaning the bottom, walls, water surface and water line of a pool, and is widely used in places such as family swimming pools, public swimming pools and aquariums.

[0003] The pool cleaning robot mainly comprises a casing, a suction mechanism, a walking mechanism, a cleaning brush mechanism and a filtering mechanism arranged on the casing. The suction mechanism is used to form a cleaning water passage on one hand and to assist the robot in adsorbing on the pool wall on the other hand, so as to ensure that the robot will not fall off when cleaning the pool wall. The walking mechanism enables the robot to move on the pool bottom and pool wall. The cleaning brush mechanism performs cleaning and brushing. The casing is provided with a water inlet and a water outlet. The filtering mechanism filters the water entering through the water inlet and discharges it from the water outlet while retaining the garbage in the filtering mechanism, thereby cleaning the water quality.

[0004] When the cleaning robot performs water surface cleaning, the water surface garbage enters the water inlet at a slow speed, or is pushed away from the water surface cleaning range by the water flow generated when the robot moves, resulting in a low cleaning efficiency of the cleaning robot in cleaning the water surface garbage. SUMMARY

[0005] The present application provides a jet flow assembly and a cleaning equipment. The water surface garbage is pushed towards the water inlet in the form of jet flow, so as to increase the speed of the garbage flowing towards the water inlet, thereby solving the problem of low cleaning efficiency of the pool cleaning robot in cleaning the water surface garbage in the prior art.

[0006] In one aspect, the present application provides a jet flow assembly for being arranged on a cleaning equipment, wherein the cleaning equipment is provided with a first opening, and the jet flow assembly comprises:

[0007] at least one nozzle arranged on the nozzle, wherein the nozzle comprises at least one first nozzle for jetting fluid towards a first direction and / or at least one second nozzle for jetting fluid towards a direction substantially opposite to the first direction;

[0008] a first fluid channel for connecting an external fluid and the nozzle;

[0009] a fluid conveying assembly arranged on the first fluid channel and used for conveying the external fluid to the nozzle.

[0010] The jet assembly provided by the embodiments of the present application is provided with a nozzle, a first fluid channel and a fluid delivery assembly. The nozzle is provided with a cavity and an inlet and a nozzle communicating with the cavity. The first fluid channel communicates with the inlet. The fluid delivery assembly can deliver fluid to the inside of the cavity of the nozzle through the first fluid channel. The fluid can be finally sprayed through the nozzle. When the fluid is sprayed through the first nozzle or the second nozzle or simultaneously through the first nozzle and the second nozzle, the sprayed fluid can gather the garbage on the water surface towards the spraying position, thereby facilitating the collection of the cleaning device and significantly improving the cleaning efficiency of the garbage on the water surface of the cleaning device.

[0011] In some embodiments, the nozzle has an inlet, the nozzle communicates with the inlet, and the first fluid channel communicates with the nozzle through the inlet.

[0012] In some embodiments, the nozzle has a cavity, and the cavity communicates with the inlet and the nozzle.

[0013] In some embodiments, the fluid delivery assembly is a water pump or an air pump.

[0014] In some embodiments, the cleaning device is further provided with a first containing cavity, and a water inlet of the fluid delivery assembly is connected to the atmosphere or the first containing cavity.

[0015] In some embodiments, the inlet and the nozzle are located at two ends of the nozzle, and the nozzle is arranged on the side of the nozzle.

[0016] In some embodiments, the inner diameter of at least a part of the cavity gradually increases from the nozzle to the inlet.

[0017] In some embodiments, the nozzle comprises a necked section and an expanded section. The necked section communicates with the cavity, and the expanded section communicates with the necked section. The inner diameter of the expanded section gradually increases away from the necked section.

[0018] In some embodiments, the nozzle has an exposed part configured to expose a shell of the cleaning device. The outer diameter of the exposed part gradually decreases away from the inside of the shell, and the nozzle is arranged on the exposed part.

[0019] In some embodiments, the nozzle comprises a first connecting pipe and a shell. The inlet is arranged on the first connecting pipe, and the shell is detachably connected to the first connecting pipe and encloses the first connecting pipe to form the cavity. The nozzle is arranged on the shell.

[0020] In some embodiments, the first connecting pipe is provided with an inflow channel and a communication port, the inflow channel has an inner diameter smaller than that of the cavity, and the communication port is located on the inner side of the shell and communicates the inflow channel and the cavity.

[0021] In some embodiments, the inner diameter of the shell gradually increases from the direction of the exit port to the communication port.

[0022] In some embodiments, the shell is formed with a sealing end enclosing the first connecting pipe near one end of the first connecting pipe, and the surface of the first connecting pipe is provided with an annular sealing portion that sealingly abuts the inner wall of the sealing end.

[0023] In some embodiments, the nozzle further comprises a threaded member, the first connecting pipe is further provided with a connecting column extending away from the annular sealing portion, and the threaded member is threaded into the connecting column along the axial direction of the first connecting pipe.

[0024] In some embodiments, the first fluid channel comprises a main pipe connected to the fluid conveying assembly and a shunt pipe connected to the main pipe and the inflow port.

[0025] In another aspect, the present application provides a cleaning device, comprising:

[0026] A device body provided with a first opening and a filter assembly for filtering water flowing into the first opening;

[0027] The above-mentioned jet assembly, the first direction is the direction towards the first opening.

[0028] The cleaning device provided by the present application can improve the cleaning speed of the water surface garbage by arranging the above-mentioned jet assembly on the device body of the cleaning device, and the first nozzle of the jet assembly can drive the water surface garbage to flow quickly towards the first opening by spraying the water surface with fluid, thereby improving the cleaning speed of the water surface garbage.

[0029] The second nozzle of the jet assembly can drive the water surface garbage to gather around the first opening by spraying the water surface with fluid away from the first opening, thereby facilitating the water surface garbage to enter the cleaning device and improving the cleaning efficiency of the cleaning device.

[0030] In some embodiments, the cleaning device is a pool cleaning robot.

[0031] In some embodiments, the inlet of the first fluid passage is disposed on the upper portion of the device body, and the external fluid is air outside the cleaning device; or, the inlet of the first fluid passage is disposed downstream of the filter assembly, and the external fluid is the fluid filtered by the filter assembly.

[0032] In some embodiments, the first opening comprises an upper sidewall, a lower sidewall, an inlet end, and an outlet end, the outlet end is closer to the filter assembly than the inlet end, the first direction is a direction towards the outlet end, and the spray head is disposed on the lower sidewall or the upper sidewall.

[0033] In some embodiments, the first opening comprises an upper sidewall, a lower sidewall, a left sidewall, a right sidewall, an inlet end, and an outlet end, the outlet end is closer to the filter assembly than the inlet end, the first direction is a direction towards the outlet end, and the spray head is disposed on at least one of the lower sidewall, the upper sidewall, the left sidewall, and the right sidewall, or inside at least one of the sidewalls; when the spray head is disposed inside the sidewall, the sidewall is provided with a corresponding through hole at a position corresponding to the nozzle of the spray head.

[0034] In some embodiments, the second nozzle sprays fluid in a direction substantially opposite to the first direction, and the sprayed fluid gathers the garbage at a first area at the first opening, wherein the first area at least partially overlaps with an area covered by the travel path of the cleaning device.

[0035] In some embodiments, the spray head is at least two, and the at least two spray heads are disposed on the left sidewall and the right sidewall, or inside the space of the left sidewall and the right sidewall.

[0036] In some embodiments, the device body is further provided with a second fluid passage, the second fluid passage is disposed in the first opening, and the nozzle is located at the sidewall of the second fluid passage for spraying fluid towards the water surface in the second fluid passage through the nozzle.

[0037] In some embodiments, the caliber of the second fluid passage gradually increases in a direction away from the first opening.

[0038] In some embodiments, the sidewall of the second fluid passage comprises an upper sidewall, a lower sidewall, a left sidewall, and a right sidewall, and the spray head is disposed on the left sidewall and / or the right sidewall, or disposed on the upper sidewall and / or the lower sidewall.

[0039] In some embodiments, the left sidewall and the right sidewall are provided with overflow ports, and the spray head is disposed on the upper sidewall and / or the lower sidewall.

[0040] In some embodiments, the number of the spray heads is two, and the two spray heads are respectively located at two sides of the flow port.

[0041] In some embodiments, the device body is further provided with telescopic arms, the telescopic arms are located at two sides of the first opening, and the spray heads are installed on the telescopic arms and can be driven by the telescopic arms to approach or move away from the first opening.

[0042] In some embodiments, the device body is further provided with a first accommodating cavity, the filter assembly is arranged in the first accommodating cavity, and the fluid conveying assembly of the water jet assembly is in communication with the first accommodating cavity, and the water flow filtered by the filter assembly enters the fluid conveying assembly from the first accommodating cavity.

[0043] In some embodiments, the number of the spray heads of the water jet assembly is two, and the intersection point of the spray directions of the two spray heads is located within the range of the first opening and the side of the filter assembly away from the first opening. BRIEF DESCRIPTION OF DRAWINGS

[0044] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application.

[0045] Figure 1 is a structural schematic diagram of a water jet assembly provided by an embodiment of the present application;

[0046] Figure 2a is a structural schematic diagram of a spray head provided by an embodiment of the present application;

[0047] Figure 2b is a front view of a spray head provided by an embodiment of the present application;

[0048] Figure 2c is a sectional view along line A-A in FIG. 3;

[0049] Figure 2d is a structural schematic diagram of a first connecting pipe provided by an embodiment of the present application;

[0050] Figure 2e is a structural schematic diagram of a housing provided by an embodiment of the present application;

[0051] Figure 3a is a structural schematic diagram of another spray head provided by an embodiment of the present application;

[0052] Figure 3b is Figure 3a an exploded view of a spray head;

[0053] Figure 3c is a structural schematic diagram of a first connecting pipe of another spray head provided by an embodiment of the present application;

[0054] Figure 3d is another nozzle profile provided by an embodiment of the present application;

[0055] Figure 4a is a structural schematic diagram of a cleaning device provided by an embodiment of the present application;

[0056] Figure 4b is Figure 4a is a partial enlarged view of A in FIG. 12;

[0057] Figure 4c is a structural schematic diagram of a cleaning device provided by an embodiment of the present application, which is kept in a horizontal state to clean a water surface;

[0058] Figure 4d is a structural schematic diagram of a cleaning device provided by an embodiment of the present application, which is kept in an inclined state to clean a water surface;

[0059] Figure 4e is a structural schematic diagram of another cleaning device provided by an embodiment of the present application, which is kept in a horizontal state to clean a water surface;

[0060] Figure 4f is a structural schematic diagram of a cleaning device provided by an embodiment of the present application, which is kept in an inclined state to clean a water surface;

[0061] Figure 4g is a partial structural schematic diagram of a first opening of a cleaning device provided by an embodiment of the present application;

[0062] Figure 5a is a structural schematic diagram of a cleaning device provided by an embodiment of the present application, in which a nozzle of the cleaning device sprays fluid towards an outlet end direction;

[0063] Figure 5b is a structural schematic diagram of a cleaning device provided by an embodiment of the present application, in which a nozzle of the cleaning device sprays fluid away from an outlet end direction;

[0064] Figure 5c is a structural schematic diagram of a cleaning device provided by an embodiment of the present application, in which a nozzle of the cleaning device sprays fluid towards and away from an outlet end direction simultaneously;

[0065] Figure 5d is a structural schematic diagram of a cleaning device provided by an embodiment of the present application, in which the cleaning device simultaneously has a nozzle spraying fluid towards an outlet end direction and a nozzle spraying fluid away from an outlet end direction;

[0066] Figure 5e is a structural schematic diagram of a cleaning device provided by an embodiment of the present application, in which the cleaning device simultaneously has a nozzle spraying fluid towards an outlet end direction and a nozzle spraying fluid away from an outlet end direction;

[0067] Figure 6is a structure schematic view of a cleaning equipment provided by an embodiment of the present application, in which a spray head of the cleaning equipment is arranged on the left side wall and the right side wall;

[0068] Figure 7a is another structure schematic view of a cleaning equipment provided by an embodiment of the present application, in which a spray head of the cleaning equipment is arranged on the left side wall and the right side wall;

[0069] Figure 7b is Figure 7a is a structure schematic view of the right side wall after explosion;

[0070] Figure 7c is Figure 7a is a structure schematic view of the left side wall after explosion;

[0071] Figure 8a is a partial structure schematic view of a cleaning equipment provided by an embodiment of the present application, in which two spray heads are arranged on the lower side wall;

[0072] Figure 8b is a dust box structure schematic view of a cleaning equipment provided by an embodiment of the present application;

[0073] Figure 9 is another cleaning equipment provided by an embodiment of the present application, in which a cross-sectional view along the XZ plane is shown;

[0074] Figure 10 is a front structure schematic view of a cleaning equipment provided by another embodiment of the present application.

[0075] Reference signs:

[0076] 100, jet assembly; a, water surface;

[0077] 10, spray head; 11, cavity; 12, inflow port; 13, first nozzle; 131, necked section; 132, flared section; 133, first flow guide part; 14, exposed part; 15, first connecting pipe; 151, inflow channel; 152, communication port; 153, annular sealing part; 154, connecting column; 155, limiting port; 16, shell; 161, sealing end; 162, mounting protruding part; 163, limiting strip; 164, annular fitting part; 17, threaded part; 18, second nozzle; 156, sealing rubber ring;

[0078] 20, first fluid channel; 21, main pipe; 22, shunt pipe; 23, tee fitting;

[0079] 30, fluid conveying assembly; 31, second connecting pipe;

[0080] 40, device body; 40a, water outlet; 41, first opening; 42, filter assembly; 43, second fluid channel; 431, upper side wall; 432, lower side wall; 433, left side wall; 434, right side wall; 435, overflow port; 436, second drainage portion; 44, telescopic arm; 45, first containing cavity; 47b, bottom inflow port; 471, first filter cover; 472, second filter cover; 411, inlet end; 412, outlet end; 413, fourth opening; 414, fifth opening; 505, first inlet; 506, first outlet; 507, top of outlet end; 508, bottom of outlet end.

[0081] The specific embodiments of the application have been shown by way of example in the above figures, and will be described in more detail hereafter. These figures and this written description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate the inventive concept by reference to specific embodiments. DETAILED DESCRIPTION

[0082] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the exemplary embodiments is intended to apply to all alternative embodiments, as would be understood by one skilled in the art. The following exemplary embodiments are described in enough detail to enable those skilled in the art to make and use the application. The examples provided serve only to explain the principles of the application.

[0083] When the cleaning robot is cleaning the water surface, the water surface garbage needs to enter the filter assembly inside the cleaning robot from the water inlet of the cleaning robot for filtering treatment. However, as the cleaning robot moves on the water surface, the water surface garbage will be pushed away from the water inlet by the water flow generated by the movement of the robot, thereby slowing down the speed of the water surface garbage entering the water inlet, resulting in a low cleaning efficiency of cleaning the water surface garbage.

[0084] To solve the above technical problems, the application provides a jet flow assembly and a cleaning device. The cleaning device sprays fluid towards the water surface at the water inlet through the jet flow assembly, drives the water flow at the water inlet to accelerate the flow into the filter assembly 42, thereby pushing the water surface garbage towards the water inlet to increase the speed of the garbage flowing into the water inlet and flowing into the filter assembly 42, thereby improving the cleaning efficiency of the cleaning device in cleaning the water surface garbage; and / or the jet flow assembly sprays fluid towards the direction away from the water inlet, so that the water surface garbage is constantly gathered at the water inlet during the movement of the cleaning device on the water surface, thereby improving the efficiency of the garbage flowing into the cleaning robot from the water inlet, and improving the efficiency of the cleaning device in cleaning the water surface garbage.

[0085] In this embodiment, refer to Figure 4aThe jet assembly can accelerate the flow rate of the water surface liquid at the water inlet in the negative direction of the X-axis, so as to accelerate the water surface garbage to flow into the inside of the cleaning device from the water inlet; and / or the jet assembly can gather the water surface garbage at the water inlet during the walking of the cleaning device, so as to improve the efficiency of the pool garbage into the water inlet and improve the water surface cleaning efficiency.

[0086] In some embodiments, the jet assembly sprays fluid towards a direction substantially opposite to the direction of the water inlet, and the sprayed fluid gathers the garbage at a first region at the first opening, wherein the first region at least partially coincides with the area covered by the travel path of the cleaning device.

[0087] The technical solutions of the present application and how the technical solutions solve the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described in detail in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0088] It should be noted that the cleaning device described in the present embodiment can be a cleaning robot for cleaning a water body such as a swimming pool, a pool or a reservoir, such as a swimming pool cleaning robot, a pool cleaning robot, etc., and the cleaning device can move in the target area to be cleaned to realize cleaning operation.

[0089] In order to better understand the present application, the following will be described in combination with Figures 1 to 10 The technical solutions of the present application will be described in detail:

[0090] The present embodiment provides a jet assembly suitable for a cleaning device, comprising at least one nozzle, a nozzle comprising at least one first nozzle spraying fluid in a first direction and / or at least one second nozzle spraying fluid in a direction substantially opposite to the first direction;

[0091] A first fluid channel is connected to the outside fluid and the nozzle;

[0092] A fluid delivery assembly is arranged on the first fluid channel for delivering the outside fluid to the nozzle.

[0093] Specifically, as shown in Figure 1 A jet assembly comprises at least one nozzle 10, a first fluid channel 20 and a fluid delivery assembly 30, the nozzle 10 is provided with a nozzle, the nozzle comprises at least one first nozzle 13 spraying fluid in a first direction; one end of the first fluid channel 20 is connected to the outside fluid, and the other end is connected to the nozzle 10; the fluid delivery assembly 30 is arranged on the first fluid channel 20 for delivering the outside fluid to the nozzle 10.

[0094] It should be noted that the number of the first nozzles 13 on the spray head 10 can be set to at least one, and the number of the second nozzles 18 on the spray head can also be set to at least one; in some embodiments, only the first nozzles 13 or only the second nozzles 18 can be provided on the spray head 10; the first nozzles 13 and the second nozzles 18 can be provided at the same time. It can be understood that when a plurality of first nozzles 13 are provided on the spray head, the plurality of first nozzles 13 can be vertically arranged, horizontally arranged, or irregularly arranged. The plurality of second nozzles 18 can be similarly arranged, which will not be described here.

[0095] Hereinafter, the spray head 10 provided with the first nozzles 13 will be taken as an example for description, and the technical solutions of other embodiments, such as the technical solution of simultaneously providing the first nozzles 13 and the second nozzles 18 or the technical solution of providing the second nozzles 18, are basically similar.

[0096] Further, referring to Figure 2a , Figure 2b and Figure 2c , the spray head 10 has a cavity 11 and an inlet 12 communicating with the cavity 11, the nozzles communicate with the cavity 11, the first fluid channel 20 communicates with the inlet 12, and the fluid conveying assembly 30 is arranged on the first fluid channel 20, for conveying external fluid to the spray head 10 through the first fluid channel 20 and spraying the fluid out through the nozzles.

[0097] It can be understood that the inlet 12, the first nozzles 13 and the second nozzles 18 can be arranged at any position of the end face, the side, the top, etc. of the spray head 10. The fluid sprayed by the spray head 10 can be gas or liquid. When the fluid is gas, one end of the first fluid channel 20 is connected to external gas (such as air), the fluid conveying assembly 30 introduces the external (here, the external refers to the outside of the fluid jet assembly) gas into the spray head 10, and the gas is sprayed by the nozzles on the spray head 10, at this time, the fluid conveying assembly 30 can be selected as a gas pump.

[0098] When the fluid is liquid, one end of the first fluid channel 20 is connected to external liquid (such as water, or filtered water), the fluid conveying assembly 30 introduces the external (here, the external refers to the outside of the fluid jet assembly) liquid into the spray head 10, and the liquid is sprayed by the nozzles on the spray head 10, at this time, the fluid conveying assembly 30 can be selected as a water pump.

[0099] It can be understood that the first direction can be any direction, and the person skilled in the art can reasonably adjust the selection of the first direction when using the fluid jet assembly to achieve the purpose required, and the fluid jet assembly of the present disclosure does not limit the first direction, but only limits that the spraying direction of the second nozzle is substantially opposite to the spraying direction of the first nozzle.

[0100] Exemplarily, the first nozzles 13 are arranged towards the water inlet of the cleaning device, and the first direction corresponds to the direction towards the water inlet of the cleaning device. The first nozzles 13 on the spray head are arranged to spray fluid in the direction towards the water inlet of the cleaning device, and the sprayed fluid can drive the garbage on the water surface to flow quickly towards the water inlet of the cleaning device, thereby effectively improving the speed of garbage entering the water inlet of the cleaning device, and significantly improving the water surface cleaning efficiency of the cleaning device.

[0101] At this time, the second nozzles 18 on the spray head are arranged to spray fluid in a direction substantially away from the water inlet of the cleaning device. With the movement of the cleaning device on the surface of the target water area, the sprayed fluid can gather the garbage on the water surface at the water inlet of the cleaning device, thereby improving the efficiency of garbage on the water surface entering the water inlet of the cleaning device and improving the water surface cleaning efficiency of the cleaning device.

[0102] Alternatively, the first nozzles 13 are arranged to spray fluid in a direction substantially away from the water inlet of the cleaning device, and the second nozzles 18 are arranged towards the water inlet of the cleaning device.

[0103] The jet flow assembly provided in the present disclosure has simple structure, reasonable design, low cost, and can realize the effect of improving multi-directional flow rate and flow speed, meet various different needs, and improve the user experience.

[0104] In some embodiments, as shown in Figures 2a-2c the inflow port 12 and the first nozzles 13 are arranged on the side of the spray head 10 and located at both ends of the spray head 10. Specifically, by this arrangement, the pressure of the fluid inside the cavity 11 can be increased, thereby increasing the spraying speed and flow rate of the nozzles.

[0105] In one of the embodiments, as shown in Figure 2c the inner diameter of at least part of the sections of the cavity 11 gradually increases from the first nozzles 13 to the inflow port 12. Specifically, by this arrangement, when the fluid enters the cavity 11, it can form a gathering at the part of the cavity 11 with larger diameter, and then be extruded towards the part of the cavity 11 with smaller diameter, thereby improving the spraying pressure of the fluid and accelerating the flow speed of the fluid in the first direction.

[0106] In one of the embodiments, as shown in Figure 2cAs shown, the first nozzle 13 comprises a converging section 131 and a diverging section 132, the converging section 131 is in communication with the cavity 11, the diverging section 132 is downstream of the converging section 131, and the diverging section 132 is in communication with the converging section 131, the inner diameter of the diverging section 132 gradually increases in the direction away from the converging section 131. Specifically, when the fluid is sprayed through the first nozzle 13, due to the small caliber of the converging section 131, the pressure of the fluid in the converging section 131 is large, and when the fluid enters the diverging section 132, the pressure is released, thereby ensuring that the fluid can be sprayed with greater force while also ensuring sufficient fluid flow, thereby accelerating the flow of fluid in the first direction.

[0107] For example, the caliber of the converging section 131 can be uniformly set or gradually set.

[0108] In one embodiment, the caliber of the converging section 131 gradually decreases in the direction of the diverging section 132, so that the fluid pressure is concentrated in the converging section 131, and then can be released in the diverging section 132, and finally the fluid is sprayed at high speed, accelerating the fluid flow rate in the first direction.

[0109] In one embodiment, as shown, Figures 2a-2c The spray head 10 comprises a first connecting pipe 15 and a shell 16, the shell 16 is sleeved on the first connecting pipe 15, of course, it can be understood that in some embodiments, the first connecting pipe 15 can also be sleeved on the bottom of the shell 16. The inlet 12 is provided at the first connecting pipe 15, the shell 16 is detachably connected or non-detachably connected to the first connecting pipe 15, and the first connecting pipe 15 and the shell 16 enclose the cavity 11, and the first nozzle 13 is provided on the side wall of the shell 16. Specifically, the spray head 10 can enclose the cavity 11 through the cooperation of the first connecting pipe 15 and the shell 16, the first connecting pipe 15 and the cavity 11 form a fluid channel from the inlet 12 to the first nozzle 13, and the shell 16 is detachably connected with the first connecting pipe 15, so that the spray head 10 can be easily cleaned and replaced.

[0110] In some embodiments, a pipeline can also be used to form a fluid flow channel between the inlet 12 and the first nozzle 13, which will not be described here.

[0111] In some embodiments, when the number of nozzles is multiple, the multiple nozzles are in communication with the cavity 11, thereby forming multiple fluid channels from the inlet to the nozzle inside the shell 16.

[0112] In some embodiments, as shown, Figures 2a-2c The outer diameter of the shell 16 gradually decreases from the bottom to the top, and the first nozzle 13 is arranged on the top side of the shell 16. Through this arrangement, the inner diameter of at least part of the cavity 11 gradually increases in the direction from the first nozzle 13 to the inlet 12, thereby increasing the spraying speed of the fluid.

[0113] In one of the embodiments, as shown in Figure 2c and Figure 2d , the first connecting pipe 15 is provided with an inflow channel 151 and a connecting portion 154, the connecting portion 154 is closer to the top of the shell 16 in the height direction relative to the inflow channel 151, and the top of the shell 16 is fixedly connected with the connecting portion 154 through a fixing member,

[0114] Further, the first connecting pipe 15 comprises the inflow channel 151 and a communicating port 152, the communicating port 152 is located at the inner side of the shell 16 and communicates the inflow channel 151 and the cavity 11, and the inflow port 12 communicates with the inflow channel 151. Specifically, through the above arrangement, the inflow port 12 does not directly communicate with the cavity 11, but communicates with the cavity 11 through the inflow channel 151, the fluid flowing in through the inflow port 12 first enters the inflow channel 151 and then enters the inside of the cavity 11, and since the inner diameter of the inflow channel 151 is smaller than the inner diameter of the cavity 11, it is easy to form high pressure of the fluid in the cavity 11, thereby increasing the ejection pressure of the fluid.

[0115] In the embodiment, the outer diameter of the shell 16 gradually decreases from bottom to top, and the upper part of the shell 16 is formed with an exposed portion 14. The exposed portion 14 can be shaped according to actual needs, such as Figure 2a as shown, the side wall of the exposed portion 14 is formed with a wavy pattern, and the first nozzle 13 is arranged in the groove of the wavy pattern.

[0116] In one of the embodiments, as shown in Figures 2c-2e , the shell 16 is formed with a sealing end 161 enclosing the first connecting pipe 15 near one end of the first connecting pipe 15, and the surface of the first connecting pipe 15 is provided with an annular sealing portion 153, which is sealingly fitted with the inner wall of the sealing end 161. Specifically, through the cooperation of the sealing end 161 and the annular sealing portion 153, the gap between the shell 16 and the first connecting pipe 15 can be sealed, thereby ensuring the sealing of the nozzle 10.

[0117] In the embodiment, the annular sealing portion 153 is provided with a sealing rubber ring 156, which is fitted with the inner wall of the annular sealing portion 153.

[0118] In one of the embodiments, as shown in Figure 2c and Figure 2eAs shown, the inner portion of the sealing end 161 is provided with a mounting protrusion 162 at a position corresponding to the annular sealing portion 153, and the inner diameter of the sealing end 161 gradually decreases in a direction away from the mounting protrusion 162. Specifically, by virtue of the mounting protrusion 162, when the shell 16 is mounted, the annular sealing portion 153 of the first connecting pipe 15 is limited at the mounting protrusion 162, thereby facilitating the mounting of the sealing sleeve and realizing sealing at the mounting protrusion 162. Moreover, since the inner diameter of the sealing end 161 gradually decreases in a direction away from the mounting protrusion 162, when the shell 16 is mounted, the pressure between the annular sealing portion 153 and the sealing end 161 can be increased by pressing the shell 16 as much as possible, so as to ensure the sealing between the annular sealing portion 153 and the sealing end 161 and improve the sealing performance of the nozzle 10.

[0119] In some embodiments, the mounting protrusion 162 can be one or more continuous protrusions or one or more protrusions arranged at intervals, which is not limited in the embodiment.

[0120] In one of the embodiments, as shown in Figure 2c The nozzle 10 further comprises a threaded member 17, and the first connecting pipe 15 is further provided with a connecting column 154 extending away from the annular sealing portion 153. The threaded member 17 is arranged through the top of the shell 16 in the axial direction of the shell 16 and is threadedly connected to the connecting column 154. Specifically, after the mounting protrusion 162 of the shell 16 is connected to the annular sealing portion 153 of the first connecting pipe 15, the shell 16 can be locked with the first connecting pipe 15 by only arranging the threaded member 17 through the shell 16 and threadedly connecting the connecting column 154. During the tightening of the threaded member 17, the shell 16 is moved toward the first connecting pipe 15, thereby increasing the pressure between the sealing end 161 and the annular sealing portion 153. Therefore, the sealing end 161 and the annular sealing portion 153 can be gradually pressed during the mounting of the shell 16, thereby ensuring the sealing performance of the nozzle 10.

[0121] In the embodiment, the connecting column 154 extends toward the top wall of the cavity 11, the threaded member 17 is arranged through the top wall of the shell 16 and is threadedly connected to the connecting column 154, and the connecting column 154 abuts against the top wall of the shell 16 when the threaded member 17 is tightened. This can avoid the damage of the nozzle 10 caused by over-tightening of the threaded member 17.

[0122] In some embodiments, the annular sealing part 15 can also be arranged on the shell 16, and one end of the first connecting pipe 15 is provided with a sealing end 161, and the sealing between the shell 16 and the first connecting pipe 15 is realized by the annular sealing part 15 and the sealing end through the sealing rubber ring 156; and the annular sealing part 15 can be arranged on the inner side or the outer side of the shell 16, and the mounting protrusion 162 can be arranged on the inner side of the sealing end 161, and the sealing between the shell 16 and the first connecting pipe 15 can be realized at the mounting protrusion 162.

[0123] In one of the embodiments, as shown in Figure 2c , Figure 2d and Figure 2e , the first connecting pipe 15 is provided with a limiting opening 155 or a limiting strip 163, and the end of the shell 16 is correspondingly provided with a limiting strip 163 or a limiting opening 155, and the limiting strip 163 is inserted into the limiting opening 155. Specifically, the shell 16 is limited in the radial direction and the circumferential direction by the cooperation of the limiting strip 163 or the limiting opening 155 of the shell 16 and the limiting opening 155 or the limiting strip 163 of the first connecting pipe 15, so as to ensure the stability of the structure of the nozzle 10.

[0124] It can be understood that the nozzle 10 can be arranged as one or more, and when the nozzle 10 is arranged as multiple, the multiple nozzles 10 can use the same fluid conveying assembly 30, or each nozzle 10 can independently use one fluid conveying assembly 30.

[0125] In one of the embodiments, as shown in Figure 1 , the nozzle 10 is arranged as two, and the first fluid channel 20 includes a main pipe 21, two branch pipes 22 and a second connecting pipe 31, the main pipe 21 is connected to the output end of the fluid conveying assembly 30, the input end of the fluid conveying assembly 30 is connected to the external fluid through the second connecting pipe 31, and the branch pipes 22 are connected to the main pipe 21 and the inflow port 12. Specifically, the fluid conveying assembly 30 draws the external fluid from the second connecting pipe 31, and then conveys the fluid to the main pipe 21, and then divides the fluid to the nozzles 10 through the branch pipes 22, so as to realize the conveying of the fluid.

[0126] In this embodiment, the number of the branch pipes 22 corresponds to the number of the nozzles 10.

[0127] In this embodiment, one end of the main pipe 21 is connected to a three-way pipe 23, and the two branch pipes 22 are respectively connected to the other two ends of the three-way pipe 23, so as to realize that a single fluid conveying assembly 30 provides fluid to two nozzles 10.

[0128] In some embodiments, at least one of the three channels of the three-way pipe 23 can also be provided with a valve, which can control the on-off of the branch pipe 22 and the main pipe 21, so as to realize the control of the spraying of the corresponding nozzle 10.

[0129] In one embodiment, the fluid delivery assembly 30 comprises a water pump, such as a centrifugal pump. Water entering the centrifugal pump is processed by the centrifugal pump to become a high pressure water stream. The high pressure water stream enters the nozzle 10 through the first fluid channel 20 and is ejected from the nozzle of the nozzle 10 to accelerate the fluid flow in the direction of ejection.

[0130] In one embodiment, the fluid delivery assembly 30 comprises a gas pump. Gas entering the gas pump is processed by the gas pump, such as pressurized, to become a high pressure gas stream. The high pressure gas stream enters the nozzle 10 through the first fluid channel 20 and is ejected from the nozzle of the nozzle 10 to accelerate the fluid flow in the direction of ejection.

[0131] In some embodiments, the nozzle 10 is provided with a plurality of nozzles, including at least one first nozzle 13 for ejecting fluid in a first direction and at least one second nozzle 18 for ejecting fluid in a direction substantially opposite to the first direction.

[0132] Referring to Figure 3a , Figure 3b and Figure 3c , Figure 3a , Figure 3b and Figure 3c Another structure of the nozzle 10 in a fluid jet assembly is disclosed. Other structures in the fluid jet assembly are substantially similar to the above embodiments and will not be described in detail here. Only the structure of the nozzle will be described in detail.

[0133] Referring to Figure 3a , Figure 3b , Figure 3c and Figure 3d The nozzle 10 comprises a first connecting pipe 15 and a housing 16. The first connecting pipe 15 is sleeved on the bottom of the housing 16. The inlet 12 is arranged at the first connecting pipe 15. The housing 16 is detachably connected or non-detachably connected to the first connecting pipe 15 and encloses the first connecting pipe 15 to form the cavity 11. The first nozzle 13 and the second nozzle 18 are oppositely arranged and both arranged on the side wall of the housing 16. Specifically, the nozzle 10 can form the cavity 11 through the butt joint of the first connecting pipe 15 and the housing 16. The first connecting pipe 15 and the cavity 11 form a fluid channel from the inlet 12 to the first nozzle 13. The housing 16 is detachably connected to the first connecting pipe 15, which facilitates the cleaning and replacement of the nozzle 10.

[0134] In some embodiments, the first nozzle 13 is provided with a first flow guide 133 around the periphery of the first nozzle 13 for guiding the fluid sprayed by the first nozzle 13, optimizing the spraying effect of the fluid, and reducing the turbulence and energy loss of the fluid during spraying. The shape and size of the first flow guide 133 can be matched with the shape of the side wall of the first opening (described below), and can be a streamlined shape suitable for fluid flow to adapt to different fluid characteristics and spraying requirements. In some embodiments, the normal cross section of the first flow guide 133 can be substantially triangular, quadrilateral, etc., the bevel surface of the first flow guide 133 is substantially elliptical, and the first flow guide 133 as a whole is a ring column cut by a bevel plane, one end of which is connected to the upper end of the shell 16 surrounding the first nozzle 13, and the other end forms an inclined end face, and the length of the side wall at the inclined end face gradually increases from one side to the other side, so that the inclined end face extends towards the fluid spraying direction.

[0135] In some embodiments, as shown in Figures 3a-3d , the outer diameter of the shell 16 gradually decreases from the bottom to the top, and the first nozzle 13 and the second nozzle 18 are arranged on the top side of the shell 16. By this arrangement, the inner diameter of at least part of the above-mentioned cavity 11 gradually increases from the first nozzle 13 to the inlet 12, thereby increasing the spraying speed of the fluid.

[0136] In one of the embodiments, as shown in Figure 3c and Figure 3d , the first connecting pipe 15 is provided with an inlet passage 151 and a connecting portion 154, the connecting portion 154 is closer to the top of the shell 16 in the height direction relative to the inlet passage 151, and the top of the shell 16 is fixedly connected with the connecting portion 154 by a fixing member,

[0137] Further, as shown in Figure 3d , the first connecting pipe 15 includes the inlet passage 151 and a communication port 152, the communication port 152 is located on the inner side of the shell 16 and communicates the inlet passage 151 and the cavity 11, and the inlet 12 communicates with the inlet passage 151.

[0138] In one of the embodiments, as shown in Figures 3c-3d , the shell 16 near one end of the first connecting pipe 15 is provided with a sealing end 161 located on the inner side of the first connecting pipe 15, and the surface of the sealing end 161 is provided with an annular fitting portion 164 which is sealingly fitted with the inner wall of the inlet passage 151. Specifically, by the cooperation of the annular fitting portion 164 and the inlet passage 151, the gap between the shell 16 and the first connecting pipe 15 can be sealed, thereby ensuring the sealing of the nozzle 10.

[0139] In the embodiment, the annular fitting part 164 is provided with a sealing rubber ring 156, which is in close contact with the inner wall of the inflow channel 151.

[0140] In one of the embodiments, as shown in Figure 3c and Figure 3d The spray head 10 further comprises a threaded part 17, and the first connecting pipe 15 is further provided with a connecting column 154 extending away from the annular sealing part 153. The threaded part 17 is threaded through the top of the shell 16 in the axial direction of the shell 16 and is screwed to the connecting column 154. Specifically, after the annular fitting part 164 of the shell 16 is connected to the first connecting pipe 15, the shell 16 and the first connecting pipe 15 can be locked by only threading the threaded part 17 through the shell 16 and screwing the connecting column 154. During the tightening of the threaded part 17, the shell 16 is moved towards the first connecting pipe 15, thereby increasing the pressure between the first connecting pipe 15 and the annular fitting part 164. Therefore, the installation of the shell 16 can also gradually press the first connecting pipe 15 and the annular fitting part 164, ensuring the sealing performance of the spray head 10.

[0141] In the embodiment, the connecting column 154 extends towards the top wall of the cavity 11, the threaded part 17 is threaded through the top wall of the shell 16 and is screwed to the connecting column 154, and the connecting column 154 abuts against the top wall of the shell 16 when the threaded part 17 is tightened. This avoids excessive tightening of the threaded part 17, which may damage the spray head 10.

[0142] The application further discloses a cleaning device with the jet flow assembly 100, which can be used to clean target water areas such as swimming pools, water pools, and reservoirs and can move in the target water area to be cleaned.

[0143] Specifically, as shown in Figure 4a The cleaning device has a first opening 41 and a filtering assembly 42 for filtering the water flowing into the first opening 41. When the cleaning device cleans the water surface of the target water area, the water surface garbage can enter the interior of the cleaning device from the first opening 41, is filtered by the filtering assembly 42 in the interior of the cleaning device, and is discharged to the outside of the cleaning device, thereby achieving the cleaning of the target water area.

[0144] The jet flow assembly 100 arranged on the cleaning device sets the first nozzle 13 on the spray head 10 to spray fluid towards the first opening 41, so that the sprayed fluid can drive the garbage on the water surface to flow quickly towards the first opening 41, thereby effectively improving the speed of the garbage entering the first opening 41 and significantly improving the water surface cleaning efficiency of the cleaning device.

[0145] In some embodiments, the second nozzle 18 on the spray head is arranged to spray fluid towards a direction substantially opposite to the first opening 41, and the sprayed fluid can gather the water surface garbage at the first opening 41 as the cleaning device moves on the surface of the target water area, thereby improving the efficiency of the water surface garbage entering the first opening 41 and improving the water surface cleaning efficiency of the cleaning device.

[0146] In the embodiment, as shown in Figures 4a-4d The cleaning device includes a device body 40, and the jet assembly 100 is arranged inside or on the device body 40, or partially arranged inside and partially arranged on the device body 40. The device body 40 further includes a first opening 41 arranged on the front side of the device body 40 and a filter assembly 42, the first opening 41 is in fluid communication with the filter assembly 42, and when the cleaning device performs water surface cleaning on the target water area, the dust-containing water flow on the water surface flows into the device body 40 from the first opening 41 and flows out after being filtered by the filter assembly 42.

[0147] The device body 40 further includes a driving mechanism for driving the cleaning device to walk on the water surface. In some embodiments, the driving mechanism includes an impeller and a motor for driving the rotation of the impeller, and the rotation of the impeller applies a backward thrust to the water, and the water generates a forward thrust to the impeller, thereby pushing the cleaning device to walk on the water surface. The driving mechanism can be arranged on the rear of the device body, and one is arranged on the left and the right.

[0148] In the embodiment, the cleaning device is provided with a first containing cavity 45, and the filter assembly 42 is arranged in the first containing cavity, and the water filtered by the filter assembly 42 enters the first containing cavity 45. In the embodiment, the second connecting pipe 31 is arranged downstream of the filter assembly 42, for example, the second connecting pipe 31 can be in communication with the first containing cavity 45, and the fluid conveying assembly 30 is arranged inside the device body 40, and under the action of the fluid conveying assembly 30, the water filtered by the filter assembly 42 can be introduced into the spray head 10 through the first fluid passage 20 to be sprayed from the nozzle of the spray head. In some embodiments, the nozzle includes at least one first nozzle 13 spraying fluid towards a first direction and / or at least one second nozzle spraying fluid towards a direction substantially opposite to the first direction.

[0149] The cleaning device provided by the embodiment of the application can spray fluid to the water surface at the first opening 41 through the jet assembly 100, thereby accelerating the dust-containing fluid near the first opening 41 to flow into the device body through the first opening 41, and thereby improving the cleaning speed of the water surface garbage.

[0150] The cleaning device provided by the embodiments of the present application can also spray fluid toward the water surface in a direction substantially away from the first opening 41 by the jetting assembly 100, so that the sprayed fluid can drive the garbage on the water surface to flow quickly toward the first opening 41, thereby effectively improving the speed of garbage entering the first opening 41 and significantly improving the water surface cleaning efficiency of the cleaning device.

[0151] In some embodiments, as shown in Figure 4a 、 Figure 4b , the first opening 41 includes an upper side wall 431, a lower side wall 432, an inlet end 411 and an outlet end 412. The outlet end is located on the inner side of the first opening 41, and the inlet end is located on the outer side of the first opening 41. The outlet end 412 is closer to the filter assembly 42 than the inlet end. The second fluid channel 43 at the first opening 41 is formed between the upper side wall 431 and the lower side wall 432, and flows from the inlet end 411 to the outlet end 412.

[0152] In some embodiments, the first direction is a direction toward the outlet end 412.

[0153] Further, the spray head 10 includes at least two, each spray head 10 is arranged on the lower side wall 432; or each spray head 10 is arranged in the internal space of the lower side wall 432 and protrudes from the lower side wall 432; or as shown in Figure 10 , each spray head 10 is arranged in the internal space of the lower side wall 432, and the nozzle of the spray head 10 is substantially flush with the lower side wall 432. The lower side wall 432 is provided with a corresponding avoiding hole corresponding to the nozzle.

[0154] In some embodiments, the spray head 10 includes at least two, each spray head 10 is arranged on the upper side wall 431; or each spray head 10 is arranged in the internal space of the upper side wall 431 and protrudes from the upper side wall 431; or each spray head 10 is arranged in the internal space of the upper side wall, and the nozzle of the spray head is substantially flush with the upper side wall 431. The upper side wall 431 is provided with a corresponding avoiding hole corresponding to the nozzle.

[0155] In some embodiments, as shown in Figure 6 、 Figure 7a 、 Figure 7b and Figure 7c , the first opening 41 includes an upper side wall 431, a lower side wall 432, a left side wall 433, a right side wall 434, an inlet end 411 and an outlet end 412. The outlet end 412 is located on the inner side of the first opening 41, and the inlet end 411 is located on the outer side of the first opening 41. The outlet end 412 is closer to the filter assembly 42 than the inlet end 411. The upper side wall 431, the lower side wall 432, the left side wall 433 and the right side wall 434 form the second fluid channel at the first opening 41, which flows from the inlet end 411 to the outlet end 412.

[0156] In some embodiments, the first direction is a direction towards the outlet end 412.

[0157] Further, the spray head 10 includes at least two, and the at least two spray heads 10 are arranged on the left side wall 433 and the right side wall 434; or the two spray heads 10 are arranged in the internal space of the left side wall 433 and the right side wall 434, and the left and right side walls are provided with corresponding avoiding holes at the corresponding positions of the nozzles; for example, the spray head 10 is arranged in the internal space of the left side wall 433, and the fourth opening 413 is arranged on the left and right side walls at the corresponding positions relative to the first nozzle 13; and the fifth opening 414 is arranged on the left and right side walls at the corresponding positions relative to the second nozzle 18.

[0158] In some embodiments, the spray head 10 includes at least two, and the at least two spray heads 10 are arranged on at least one of the upper side wall 431 and the lower side wall 432; or the two spray heads 10 are arranged in the internal space of at least one of the upper side wall 431 and the lower side wall 432 and protrude from the upper side wall 431; or the spray head 10 is arranged in the internal space of at least one of the upper side wall 431 and the lower side wall 432, and the nozzle of the spray head is substantially flush with the upper and lower side walls, and the upper and lower side walls are provided with corresponding avoiding holes at the corresponding positions of the nozzles.

[0159] In some embodiments, the first opening is further provided with a second flow guide part 436 corresponding to the first flow guide part 133 of the first nozzle 13 on the side wall where the spray head 10 is arranged. As shown in Figure 4e , the spray head 10 is arranged in the internal space of the left and right side walls of the first opening, and the second flow guide part 436 is further arranged at the fourth opening 413 of the left and right side walls, and the second flow guide part 436 extends towards the spraying direction of the first nozzle, so as to guide the fluid sprayed by the first nozzle 13, prevent the turbulence and energy loss in the fluid spraying process, and further improve the spraying effect.

[0160] In some embodiments, as shown in Figure 4b , Figure 6 and Figure 7a , the size of the second fluid channel formed by the upper side wall and the lower side wall, or the second fluid channel formed by the upper side wall 431, the lower side wall 432, the left side wall 433 and the right side wall 434, gradually increases towards the direction away from the outlet end, so as to facilitate the water surface garbage to enter the internal space of the setting body from the first opening.

[0161] For example, as shown in Figures 4e , it should be noted that, Figure 4eThe position of the first nozzle 13 is indicated by the position of the fourth opening 413, and the position of the second nozzle 18 is indicated by the position of the fifth opening 414. When the cleaning device is cleaning the water surface, the nozzle part is partially below the water surface, partially above the water surface, or entirely below the water surface. At this time, the first nozzle 13 can be positioned above the water surface and can spray fluid toward the outlet end 412 at a downward angle a1 relative to the horizontal plane (a1>0°) Figure 4d The solid arrow indicates the direction of fluid spraying). In some embodiments, the first nozzle 13 can be positioned 0-30 mm above the water surface, and the angle a1 can be selected to be 0°-30°. For example, the nozzle 10 can be positioned at least one of 0 mm, 3 mm, 5 mm, 8 mm, 10 mm, 15 mm, 18 mm, 20 mm, 25 mm, and 30 mm above the water surface, and the angle a1 can be at least one of 0°, 3°, 5°, 8°, 10°, 12°, 15°, 20°, 25°, and 30°. In this embodiment, 0 mm above the water surface means that the first nozzle 13 is positioned substantially level with the water surface, and 0° for the angle a1 means that the first nozzle 13 sprays fluid toward the outlet end 412 in a substantially horizontal manner.

[0162] In addition, it should be noted that when the cleaning device is cleaning the water surface, it is not necessarily in a horizontal state (for example, the cleaning device is in a horizontal state when cleaning the water surface Figure 4c , Figure 4e , the cleaning device can be in a slightly raised state (for example, the cleaning device is in a slightly raised state at the front when cleaning the water surface Figure 4d ). At this time, the cleaning device can be considered to be in a substantially horizontal state. In this embodiment, regardless of the state of the cleaning device when cleaning the water surface, only the positional relationship between the nozzle and the water surface is discussed. It can be understood by those skilled in the art that the posture of the cleaning device when cleaning the water surface has a certain influence on the setting of the nozzle position, because different postures can affect the water line position of the cleaning device and thus affect the setting position of the nozzle. For example Figure 4c , the water line of the cleaning device (a line that can be considered as the water line of the water surface a on the cleaning device) is different from the water line in Figure 4d .

[0163] For example, when the cleaning device is cleaning the water surface, the first nozzle 13 can also be positioned below the water surface (for example Figure 4fAs shown, the first nozzle 13 is arranged to spray the fluid at an angle of Ψ1 upwardly relative to the horizontal plane towards the outlet end 412 (as shown, the solid arrow indicates the direction of fluid spraying), and the fluid sprayed by the first nozzle 13 is approximately parallel to the left and right side walls of the first opening 41. In some embodiments, the first nozzle 13 can be arranged at a position 0-30 mm below the water surface, and the angle Ψ1 can be selected to be 0°-30°; for example, the first nozzle 13 can be arranged at a position at least one of 0 mm, 3 mm, 5 mm, 8 mm, 10 mm, 15 mm, 18 mm, 20 mm, 25 mm and 30 mm below the water surface, and the angle Ψ1 can be selected to be at least one of 0°, 3°, 5°, 8°, 10°, 12°, 15°, 20°, 25° and 30°. In the present embodiment, 0 mm below the water surface means that the first nozzle 13 is arranged at a position substantially level with the water surface, and 0° for the angle Ψ1 means that the first nozzle 13 sprays the fluid in a substantially horizontal direction towards the outlet end 412.

[0164] In some embodiments, the first nozzle 13 can also be arranged at a position at or approximately at the water surface, and the spraying angle of the first nozzle 13 can be slightly upwardly inclined or slightly downwardly inclined or approximately parallel relative to the water surface, and the fluid sprayed by the first nozzle 13 can be sprayed towards the outlet end 412 at an angle approximately parallel to the left and right side walls of the first opening 41.

[0165] In some embodiments, the spray head can also be arranged at a position as shown in Figure 4g , wherein the left side wall 433 and the right side wall 434 are each provided with a spray head 10, and at least one first nozzle 13 of the spray head 10 is arranged to spray the fluid towards the outlet end 412, and the angle between the direction of the fluid sprayed by the first nozzle 13 or the orientation of the first nozzle 13 and the positive direction of the Y axis is M2, wherein 10°≤M2≤80°. Figure 4g In some embodiments, the angle M2 is the same as the angle between the left side wall 433 and the positive direction of the Y axis.

[0166] In some embodiments, as shown in

[0167] , the distance between the first nozzle 13 and the outermost front side of the first opening 41 (i.e. the inlet end 411) is M1, and when M1=0 mm, the first nozzle 13 is level with the outermost front side of the first opening 41. Figure 4g In some embodiments, as shown in

[0168] , the distance between the first nozzle 13 at the left side wall 433 and the outermost left side of the first opening 41 is M3, and when M3=0 mm, the first nozzle 13 is level with the outermost left side of the first opening 41. Figure 4g In some embodiments, the spray head can also be arranged at a position as shown in

[0169] , wherein the left side wall 433 and the right side wall 434 are each provided with a spray head 10, and at least one first nozzle 13 of the spray head 10 is arranged to spray the fluid towards the outlet end 412, and the angle between the direction of the fluid sprayed by the first nozzle 13 or the orientation of the first nozzle 13 and the positive direction of the Y axis is M2, wherein 10°≤M2≤80°.In some embodiments, M2 is selected as 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 70° or 80°; M1 is selected as 0mm, 10mm, 20mm, 30mm, 32mm, 35mm, 38mm, 40mm, 42mm, 45mm, 48mm, 50mm, 52mm, 55mm, 58mm, 60mm, 70mm, 80mm, 90mm or 100mm; and M3 is selected as 0mm, 10mm, 15mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, 35mm, 38mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm or 100mm. The above angle and distance settings ensure that the water jet from the first nozzle 13 can be sprayed in front of the outlet end of the first opening 41 or sprayed into the filter assembly 42 through the outlet end when the baffle at the first opening 41 is opened, so that it will not spray onto the housing of the main body of the cleaning equipment or the side wall of the first opening 41, causing liquid splashing or obstruction and affecting the cleaning effect.

[0170] In some embodiments, the nozzle 10 at the right side wall 434 may be positioned symmetrically with the nozzle 10 at the left side wall 433, or it may be asymmetrical; this embodiment does not impose any limitation.

[0171] In some embodiments, the first nozzle 13 of the nozzle 10 at the right side wall 434 and the first nozzle 13 of the nozzle at the left side wall 433 can be staggered in the height direction. In this case, the fluid ejected by the first nozzle 13 of the nozzle 10 at the right side wall 434 and the fluid ejected by the first nozzle 13 of the nozzle at the left side wall 433 can overlap in angle.

[0172] In some embodiments, when the cleaning device is cleaning the water surface, the first nozzle 13 is located above the water surface and its nozzle bottom is flush with the water surface, and the fluid it sprays is also flush with the water surface; and / or the second nozzle 18 is also located above the water surface and its nozzle bottom is flush with the water surface, and the fluid it sprays is also flush with the water surface.

[0173] In some embodiments, when the cleaning device is cleaning the water surface, the first nozzle 13 is located below the water surface and its nozzle tip is flush with the water surface, and the fluid it sprays is also flush with the water surface; and / or the second nozzle 18 is located below the water surface and its nozzle tip is flush with the water surface, and the fluid it sprays is also flush with the water surface.

[0174] In some embodiments, such as Figure 4c , Figure 4eWhen the cleaning device is in a horizontal position, the first nozzle 13 and / or the second nozzle 18 is located in a vertical direction (the vertical direction is perpendicular to the machine advancing direction) between the top 507 of the outlet end and the bottom 508 of the outlet end; in some embodiments, when the cleaning device is in a horizontal position, the first nozzle and / or the second nozzle is located above the top 507 of the outlet end or below the bottom 508 of the outlet end in a vertical direction (the vertical direction is perpendicular to the machine advancing direction).

[0175] In some embodiments, as Figure 4c , Figure 4e When the cleaning device is in a horizontal position, the first nozzle 13 is upward and toward the outlet end 412 at a direction angle of 0°-15° with the horizontal plane; the second nozzle 18 is downward and toward the direction away from the outlet end 412 at a direction angle of 0°-20° with the horizontal plane.

[0176] In some embodiments, the fluid length sprayed by the second nozzle 18 is between 5cm-60cm. For example, 5cm, 10cm, 15cm, 20cm, 30cm, 40cm, etc.

[0177] In some embodiments, referring to Figure 5a , for example, Figure 5a illustrate the direction of the first nozzle 13 spraying fluid toward the outlet end 412 (the solid arrow shows the fluid spraying direction), Figure 5a mainly show the nozzle and the filter assembly 42, the first water inlet position, and the rest of the irrelevant parts are omitted. As Figure 5a shown by the dashed line, the connecting line (line B in the dashed line in Figure 5a is a connecting line) of the first nozzle 13 and multiple points on the side wall of the outlet end close to the first nozzle 13 is the first boundary (here it can be understood that: taking the first nozzle 13 as a point, taking the connecting line of any point on the side wall of the outlet end close to the first nozzle 13 and the first nozzle as the first boundary, and the multiple connecting lines of all points on the side wall of the outlet end and the first nozzle 13 form the first boundary), and the connecting line (line C in the dashed line in Figure 5a is a connecting line) of the first nozzle 13 and multiple points on the center line of the outlet end extending in the vertical direction (the height direction of the device main body) is the second boundary (the center line can be understood as composed of multiple points, and the connecting line of the nozzle and multiple points on the center line can form the second boundary), and the direction of the first nozzle 13 spraying fluid toward the outlet end is between the first boundary and the second boundary, thereby effectively preventing interference between different first nozzles 13 spraying fluid, thereby effectively improving the rate of garbage entering the inside of the device main body and improving the cleaning efficiency.

[0178] In some embodiments, the direction of fluid ejection from the first nozzle 13 may only have a first boundary B, without a second boundary C, as long as the fluid ejected from the two first nozzles 13 does not collide in front of the outlet end. For example, in this case, the fluid ejected from the two first nozzles 13 may intersect at a staggered height.

[0179] In some embodiments, if the filter assembly 42 is further provided with other components that may obstruct water flow, such as a second filter cover 472, the second filter cover 472 must ensure that it does not directly obstruct the fluid ejected from the first nozzle 13, so as to maintain smooth fluid flow within the space defined by the first boundary and the second boundary (if provided). At the same time, the pore size and material selection of the second filter cover 472 must also take into account the characteristics of the fluid and the cleaning requirements, so as to effectively filter impurities and avoid unnecessary pressure loss to the fluid, thereby ensuring the working efficiency and stability of the entire jet assembly.

[0180] like Figure 5a As shown by the arrow, when the fluid sprayed from the first nozzle 13 toward the outlet end enters the filter assembly 42, if it hits an obstruction, the reflected water flow will reflect toward the rear of the main body 40 of the device. This can prevent the reflected water flow from washing the garbage in the filter assembly 42 out of the first opening and causing secondary pollution.

[0181] The above embodiments describe the setting position of the first nozzle 13 and the direction of fluid injection of the first nozzle 13. The following describes the setting position of the second nozzle 18 and the direction of fluid injection of the second nozzle 18.

[0182] In some embodiments, in addition to having at least one first nozzle 13, the nozzle 10 also has at least one second nozzle 18. The second nozzle 18 is positioned similarly to the first nozzle 13, such as... Figures 4c-4f As shown, it should be noted that Figure 4e The position of the second nozzle 18 is indicated by the position of the fifth opening 414, and these two positions are essentially consistent. When the cleaning equipment is cleaning the water surface, the nozzle 10 is partially below the water surface, partially above the water surface, or completely below the water surface; at this time, the second nozzle 18 can be above the water surface and spray fluid towards the direction away from the outlet end at a certain downward angle α2 relative to the horizontal plane. Figure 4d(The solid arrow in the middle indicates the direction of fluid injection). In some embodiments, the second nozzle 18 may be located 0-30 mm above the water surface, and the angle α2 may be selected from 0° to 30°. For example, the nozzle 10 may be located at at least one of 0 mm, 3 mm, 5 mm, 8 mm, 10 mm, 15 mm, 18 mm, 20 mm, 25 mm, and 30 mm above the water surface, and the angle α2 relative to the horizontal plane downwards may be at least one of 0°, 3°, 5°, 7°, 8°, 9°, 10°, 12°, 15°, 20°, 25°, and 30°. In this embodiment, 0 mm above the water surface means that the location of the second nozzle is substantially flush with the water surface, and when the angle α2 is selected as 0°, it means that the second nozzle injects fluid in a generally horizontal manner toward the direction away from the outlet end.

[0183] For example, when the cleaning equipment is cleaning the water surface, the second nozzle 18 can also be positioned below the water surface (e.g., Figure 4f As shown (the solid arrow indicates the direction of fluid injection), the fluid is injected upwards at a certain angle Ψ2 relative to the horizontal plane towards the direction away from the outlet end. In some embodiments, the second nozzle may be located 0-30 mm below the water surface, and the angle Ψ2 may be selected from 0°-30°; for example, the second nozzle may be located at at least one of 0 mm, 3 mm, 5 mm, 8 mm, 10 mm, 15 mm, 18 mm, 20 mm, 25 mm, and 30 mm below the water surface, and the upward angle Ψ2 relative to the horizontal plane may be at least one of 0°, 3°, 5°, 7°, 8°, 9°, 10°, 12°, 15°, 20°, 25°, and 30°. In this embodiment, 0 mm below the water surface means that the location of the second nozzle is substantially flush with the water surface, and when the angle Ψ2 is selected as 0°, it means that the second nozzle injects fluid in a generally horizontal manner towards the direction away from the outlet end.

[0184] The following section provides a detailed description of the injection direction of the fluid being injected toward the direction opposite to the outlet end, or the setting direction of the second nozzle.

[0185] by Figure 5b To illustrate the specific injection direction of the fluid injected by the second nozzle 18 of this disclosure toward the direction opposite to the outlet end 412, as shown below... Figure 5b Two nozzles 10 are provided at the first opening 41. At least one second nozzle 18 is provided on the nozzle 10 to spray fluid in the direction away from the outlet end 412. The dotted line in the figure indicates the sprayed fluid. The direction of the fluid sprayed by the second nozzle 18 forms an angle Q with the forward direction of the main body of the equipment (X direction in the figure). The angle ranges from 0° to 90°. When it is 0°, the direction of the sprayed fluid is parallel to the forward direction. In some embodiments, the angle Q can be 20°, 30°, 45°, 60°, 70°, etc.

[0186] In some embodiments, seeFigure 5b Two nozzles are symmetrically arranged at the first opening 41, and the distance H1 between the second nozzles of the two nozzles is greater than the length H2 of the outlet end of the first water inlet 41, so that the nozzles can effectively block the water surface garbage, and the range of the water surface garbage entering the first water inlet is increased.

[0187] In some embodiments, referring to Figure 5b The cleaning device has a width H3, which is the maximum length of the cleaning device perpendicular to the advancing direction, or the maximum length of the main body of the cleaning device perpendicular to the advancing direction, for example, it can be the distance between the left and right two walking device housings at the bottom of the cleaning device, or the distance between the outermost two ends of the cleaning device perpendicular to the advancing direction. The width H3 is greater than or equal to the length of the inlet end of the first opening 41. In some embodiments, the width H3 is greater than or equal to H1.

[0188] In some embodiments, referring to Figure 5b The farthest points of the fluid sprayed by the two second nozzles 18 at the first opening 41 of the cleaning device are connected, and the width H4 is greater than the width H3.

[0189] In some embodiments, by spraying fluid through the second nozzles 18 in the direction away from the outlet end, the water surface garbage can be gathered in the inlet end of the first opening 41 along with the movement of the cleaning device, as Figure 5b The area between the two dashed lines can be understood as a garbage gathering area, and the garbage gathering area can cover the movement area of the inlet end and / or the outlet end of the first opening 41 during the advancing process of the cleaning device (as Figure 5b The area moving along the advancing direction X of the cleaning device with a length of width H2 can be understood as the movement area of the outlet end during the advancing process of the cleaning device); in some embodiments, the garbage gathering area can also cover the movement area of the main body of the cleaning device during the advancing process of the cleaning device (as Figure 5b The area moving along the advancing direction X of the cleaning device with a length of width H3 can be understood as the movement area of the main body of the cleaning device during the advancing process).

[0190] In some embodiments, the nozzle is also used to spray fluid at least in a direction away from the first water inlet, and the sprayed fluid gathers the garbage on the surface of the liquid pool to a first area, wherein the first area at least partially overlaps with the area covered by the advancing path of the cleaning device.

[0191] It should be noted that the direction of the sprayed fluid and the setting direction of the nozzle in the present disclosure can be consistent or inconsistent. When the nozzle direction and the direction of the sprayed fluid are consistent, the direction of the sprayed fluid in the present disclosure can be understood as the setting direction of the nozzle (i.e. the orientation of the nozzle), and the fluid direction in the embodiments is fully applicable to the nozzle direction. In addition, it should be noted that the sprayed fluid has a certain weight, and in the case of no obstruction, the final sprayed fluid curve is necessarily a parabola-like curve. The fluid spraying direction of the present disclosure refers to the direction of the fluid close to the nozzle end, i.e. the direction of the fluid just sprayed from the nozzle, rather than the direction of the fluid under the influence of gravity.

[0192] In one of the embodiments, the cleaning device is one of a pool cleaning robot, a swimming pool cleaning robot, and a reservoir cleaning robot.

[0193] In some embodiments, as shown in Figure 10 The first containing cavity 45 is further arranged in the device body 40, and the filtering assembly 42 is arranged in the first containing cavity 45. The filtered water enters the space between the outer wall of the filtering assembly 42 and the cavity wall of the first containing cavity 45. The second connecting pipe 31 is in communication with the first containing cavity 45. For example, the inlet of the second connecting pipe can be arranged on the cavity wall of the first containing cavity 45, or extends from the cavity wall of the first containing cavity 45, so as to ensure that the water flow entering the second connecting pipe is filtered water. Through the above arrangement, the water in the first containing cavity 45 can be introduced into the spray head 10 under the action of the fluid conveying assembly 30, to form a high-pressure water flow.

[0194] In one of the embodiments, the first opening 41 is arranged at the front of the device body 40, and the first opening 41 is used as the inlet for the external fluid to enter the filtering assembly 42 when the cleaning device performs water surface cleaning.

[0195] In one of the embodiments, the cleaning device further comprises a suction mechanism, which can include an impeller and a motor driving the impeller. When the cleaning device performs cleaning work, the suction mechanism is used to suck the external water flow into the interior of the device body 40 through the first opening 41, specifically, into the filtering assembly 42, and then the filtered water flow enters the space between the filtering assembly 42 and the first containing cavity, and then passes through the suction assembly and is discharged from the drain arranged at the top or rear of the device body 40 of the cleaning device.

[0196] In some embodiments, the fluid sprayed from the first nozzle 13 and / or the second nozzle 18 can be linear fluid, fan-shaped fluid, or other shaped fluid, which is not limited in the present embodiment.

[0197] In some embodiments, as shown in Figure 4a , 4bAs shown, the two sides of the first opening 41 are also provided with overflow ports 435, and the spray head 10 is arranged on the upper side wall 431 and / or the lower side wall 432. Specifically, the overflow port 435 extends a certain distance backward from the inlet end 411 of the first opening 41, and in general, the backward extension distance does not exceed the outlet end 412 of the first opening 41.

[0198] The overflow port 435 can open the left and right sides of the first opening 41, facilitating the water flow from the overflow port into the outlet end of the first opening 41. When the first nozzle 13 sprays fluid towards the water surface at the outlet end, it can also drive the water body to flow towards the outlet end through the overflow port 435, further accelerating the flow of garbage near the cleaning device to the outlet end, thereby improving the cleaning efficiency of the cleaning device.

[0199] In some embodiments, the spray head 10 or the first nozzle 13 and / or the second nozzle 18 can be rotationally connected with the device body 40, so that the first nozzle 13, the second nozzle 18 or the spray head can rotate when spraying fluid. Alternatively, the spray angle of the first nozzle 13 is adjusted to the spray angle of the second nozzle 18 by rotation; or the spray angle of the second nozzle 18 is adjusted to the spray angle of the first nozzle 13 by rotation, thereby saving the number of nozzles.

[0200] In some embodiments, the height of the first nozzle 13 and / or the second nozzle 18 is adjustable, i.e. the cleaning device can reasonably adjust the specific height of the first nozzle 13 and / or the second nozzle 18 according to its posture when cleaning the water surface, so as to meet the best spraying effect.

[0201] In some embodiments, when a plurality of first nozzles 13 are arranged on the spray head, the plurality of first nozzles 13 can be vertically arranged, horizontally arranged, or irregularly arranged. The spraying directions of the plurality of first nozzles 13 can be consistent or inconsistent. It can be understood that the plurality of second nozzles 18 can be similarly arranged, which will not be described here.

[0202] In one of the embodiments, the number of spray heads 10 is two, and the two spray heads 10 are arranged at the left side wall 433 and the right side wall 434 of the first opening 41. During the water surface cleaning of the cleaning device, the first nozzles 13 of the two spray heads 10 are located below the water surface, above the water surface or substantially flush with the water surface, or during the water surface cleaning of the cleaning device, the first nozzles 13 of one spray head 10 are located above the water surface, and the first nozzles 13 of the other spray head 10 are located below the water surface.

[0203] In one of the embodiments, the two spray heads 10 can also be arranged on the upper side wall 431 or the lower side wall 432 of the first opening 41 and located on both sides of the outlet end of the first opening 41; or one is arranged on the upper side wall 431 and the other is arranged on the lower side wall 432, and the two spray heads 10 are spaced apart by a certain distance in the height direction.

[0204] In some embodiments, see Figure 5c The nozzle has two nozzles, which are located on the left and right sides of the outlet end 412. For example, they can be located on the left and right side walls, or inside the left and right side walls, or both nozzles can be located on the lower side wall. Each nozzle has at least one first nozzle 13 that sprays fluid toward the outlet end and at least one second nozzle 18 that sprays fluid toward the opposite direction to the outlet end.

[0205] For some possible implementations, please refer to Figure 5d , Figure 5e As shown, two nozzles 10 are symmetrically arranged on each of the left and right sides of the outlet end 412. For example, two nozzles 10 can be arranged on the left side wall or inside the left side wall, and two nozzles 10 can be arranged on the right side wall or inside the right side wall; or, four nozzles 10 can be arranged on the lower side wall or inside the lower side wall, two on the left and two on the right. Of the two nozzles 10 located on the same side of the outlet end 412, one nozzle is provided with at least one first nozzle 13 for spraying fluid towards the outlet end, and the other nozzle is provided with at least one second nozzle 18 for spraying fluid away from the outlet end.

[0206] For example, such as Figure 5d As shown, a first nozzle 13 is provided on the nozzle 10 near the center axis of the height direction of the outlet end 412, which sprays fluid toward the outlet end direction, and a second nozzle 18 is provided on the nozzle 10 away from the center axis of the height direction of the outlet end 412, which sprays fluid toward the opposite direction of the outlet end.

[0207] For example, such as Figure 5e As shown, a second nozzle 18 is provided on the nozzle 10 near the center axis of the height direction of the outlet end 412, which sprays fluid in the direction away from the outlet end, and a first nozzle 13 is provided on the nozzle 10 away from the center axis of the height direction of the outlet end 412, which sprays fluid in the direction of the outlet end.

[0208] In some embodiments, such as Figure 8a and Figure 8b As shown, the filter assembly 42 includes a first filter cover 471 and a second filter cover 472. The second filter cover 472 is arranged around the suction assembly. The first filter cover 471 is located outside the second filter cover 472. The first filter cover 472 includes a side wall and a bottom wall. The bottom wall of the first filter cover 471 is provided with a bottom inlet 47b.

[0209] The bottom of the main body of the cleaning equipment is also provided with a second opening, which is connected to the bottom inlet 47b. When the cleaning equipment cleans the bottom of the pool, the dust-laden liquid enters the filter component 42 through the second opening under the action of the suction component. After being filtered by the filter component 42, it flows into the first receiving cavity 45 and is then discharged through the outlet 40a, thereby realizing the function of cleaning the pool.

[0210] In some embodiments, such as Figure 9 As shown, the fluid delivery assembly 30 is located inside the main body 40 near the first opening 41, and has a first inlet 505 (i.e., input end) and a first outlet 506 (i.e., output end). When the jet assembly 100 sprays liquid, the first inlet 505 is connected to the first receiving cavity 45 through the second connecting pipe 31; when the jet assembly 100 sprays gas, the first inlet 505 is connected to the air inlet (not shown in the figure) at the top of the main body 40 through the second connecting pipe 31. In this embodiment, the jet assembly spraying liquid is used as an example for explanation. The structure when spraying gas is similar and will not be described in detail. The first outlet 506 is connected to the fluid channel ( Figure 9 The dashed arrow in the middle indicates the fluid channel, which is connected to the nozzle 10. In this embodiment, the nozzle 10 is disposed inside the lower sidewall 432 of the first opening 41. The nozzle 10 is provided with at least one first nozzle 13 that sprays fluid toward the outlet end 412. The surface of the first nozzle 13 is basically flush with the surface of the lower sidewall 432, and the lower sidewall 432 is provided with a clearance opening at the corresponding position of the first nozzle 13. The nozzle 10 is provided with a cavity 11 inside, and the first nozzle 13 is in fluid communication with the cavity 11. One end of the nozzle is provided with an inlet 12, which is in fluid communication with the first outlet 506. The first fluid channel 20 is for the filtered liquid in the first receiving cavity 45 to flow into the first inlet 505 through the second connecting pipe 31 and flow out from the first outlet 506 of the fluid conveying assembly 30. The liquid flows through the main pipe 21 and / or the branch pipe 22 through the inlet 12 into the cavity 11, and flows toward the first nozzle 13 in the cavity 11, so that the fluid (gas or liquid) can be sprayed toward the outlet end 412 through the first nozzle 13.

[0211] The bottom of the first receiving cavity 45 is provided with a third opening. The first inlet 505 is connected to the third opening through the second connecting pipe 31. The liquid filtered by the filter assembly 42 flows into the first receiving cavity 45. The liquid in the first receiving cavity 45 flows into the first inlet 505 of the fluid delivery assembly 30 through the second connecting pipe 31. After being processed by the fluid delivery assembly 30, it is delivered to the nozzle 10 through the first outlet 506, and then sprayed out by the first nozzle 13 and / or the second nozzle 18 on the nozzle 10. The processing referred to in this embodiment includes both physical processing and chemical processing, such as centrifugal processing, rotary processing, pressurization processing, conveying processing, compression processing, etc., which are not limited in this embodiment.

[0212] likeFigure 9 As shown, the first nozzle 13 forms a certain angle M4 with the positive Z-axis, where 5°≤M4≤88°

[0213] In some embodiments, the fluid delivery assembly 30 may be a water pump, such as a centrifugal pump. Water flowing into the centrifugal pump from the first inlet 505 is processed by the centrifugal pump and becomes a high-pressure water flow that is output from the second outlet 506. It then flows through the first fluid channel 20 to the nozzle 10, enabling the first nozzle 13 on the nozzle 10 to spray fluid toward the water surface at the outlet end 412 or enabling the second nozzle 18 on the nozzle 10 to spray fluid toward the direction away from the outlet end 412. This allows surface debris to enter the filter assembly 42 more quickly from the first opening 41, thereby improving the water surface cleaning efficiency of the cleaning equipment.

[0214] In some embodiments, the fluid delivery assembly 30 may be an air pump. The airflow entering the air pump from the first inlet 505 is processed by the air pump (such as pressurization) and becomes a high-pressure airflow that is output from the second outlet 506 and flows to the nozzle 10 through the first fluid channel 20. This allows the first nozzle 13 on the nozzle 10 to spray gas toward the water surface at the outlet end 412 or the second nozzle 18 on the nozzle 10 to spray gas toward the direction away from the outlet end 412, thereby accelerating the entry of water surface debris into the filter assembly 42 from the first opening 41 and improving the water surface cleaning efficiency of the cleaning equipment.

[0215] In this embodiment, as Figure 1 As shown, the fluid delivery component 30 has a second connecting pipe 31 at its input end. When the fluid delivery component 30 is a water pump, the second connecting pipe 31 can be connected to the water tank where the cleaning robot is working, introducing water from the tank, or connected to cleaning equipment, introducing water filtered by the cleaning equipment, ultimately forming a high-pressure water flow. That is, the inlet of the second connecting pipe 31 can be located downstream of the filter component 42, so that the water flow filtered by the filter component 42 can be introduced into the nozzle 10.

[0216] When the fluid delivery component 30 is an air pump, the second connecting pipe 31 is connected to the atmosphere, thereby introducing gas from the atmosphere to form a high-pressure airflow. At this time, the opening of the second connecting pipe 31 is located at a position where the main body 40 of the cleaning robot is above the water surface when it is moving on the water surface, such as at the handle or near the upper part of the main body 40.

[0217] In one embodiment, such as Figure 10As shown, the main body 40 of the equipment is also provided with a telescopic arm 44, which is located on both sides of the first opening 41. The nozzle 10 is mounted on the telescopic arm 44 and can move closer to or further away from the first opening 41 by the movement of the telescopic arm. Specifically, the telescopic arm can move the nozzle 10 in the forward direction of the cleaning equipment, thereby reasonably adjusting the position of the nozzle 10 in the forward direction, and thus reasonably determining the specific setting position and spray direction of the first nozzle 13 and / or the second nozzle 18 on the nozzle.

[0218] For example, the telescopic arm 44 can be set at any position such as the top, bottom, left or right side of the equipment body 40, and the placement of the telescopic arm can be adapted according to the placement of the nozzle 10.

[0219] In this embodiment, as Figure 10 As shown, the telescopic arm 44 is disposed on the left and right sides of the main body 40 of the equipment, or on the left and right side walls. The end of the telescopic arm 44 away from the main body 40 is bent toward the outlet end 412. The nozzle 10 is installed on the end of the telescopic arm 44 away from the main body 40. The fixed end of the telescopic arm 44 can be connected to the diversion pipe 22. A connection channel is provided on the inner side of the telescopic arm 44. The nozzle 10 is connected to the diversion pipe 22 through the connection channel of the telescopic arm 44; or the diversion pipe 22 is disposed inside the telescopic arm 44, and the nozzle on the telescopic arm 44 is directly connected to the diversion pipe 22 inside it. Under the drive of the fluid delivery assembly 30, the fluid flows into the nozzle 10 through the first fluid channel 20 and is ejected from the first nozzle 13 and / or the second nozzle 18 on the nozzle 10.

[0220] In this embodiment, the telescopic arm 44 includes an outer tube and an inner tube. The inner tube is slidably connected to the outer tube. The telescopic arm 44 can be extended or retracted by sliding along the axial direction of the outer tube. The outer tube is the fixed end of the telescopic arm 44 and is fixed to the main body 40 of the equipment. The inner tube is the telescopic end of the telescopic arm 44. The inner sides of the inner tube and the outer tube form a connecting channel.

[0221] In one embodiment, the telescopic arm 44 may be disposed on the upper sidewall 431 and / or lower sidewall 432 of the first fluid channel 20, and may move between a first position and a second position, wherein in the first position, the end of the telescopic arm 44 extends out of the upper sidewall 431 or the lower sidewall 432 and is in a working state; in the second position, the end of the telescopic arm 44 retracts into the cleaning device or is flush with the upper sidewall 431 or the lower sidewall 432.

[0222] In the above embodiments, the movement of the telescopic arm 44 can be achieved by a motor and a transmission mechanism.

[0223] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0224] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A jet assembly, characterized in that, include: At least one nozzle (10) is provided with a nozzle, the nozzle including at least one first nozzle (13) that sprays fluid toward a first direction and / or at least one second nozzle (18) that sprays fluid toward a direction substantially opposite to the first direction. The first fluid channel (20) connects the external fluid and the nozzle (10). A fluid delivery assembly (30) is disposed on the first fluid channel (20) for delivering external fluid to the nozzle (10).

2. The jet assembly as described in claim 1, characterized in that, The nozzle (10) has an inlet (12), the nozzle is connected to the inlet (12), and the first fluid channel (20) is connected to the nozzle through the inlet (12).

3. The jet assembly as described in claim 2, characterized in that, The nozzle (10) has a cavity (11) that connects the inlet (12) and the nozzle.

4. The jet assembly as described in any one of claims 1-3, characterized in that, The fluid delivery assembly (30) is a water pump or an air pump.

5. A cleaning device capable of moving within an area to be cleaned, characterized in that, The cleaning equipment includes: The main body of the device (40) is provided with a first opening (41) and a filter assembly (42), the filter assembly (42) being used to filter the water flowing into the main body of the device (40) from the first opening (41); The jet assembly as described in any one of claims 1-4, wherein the first direction is the direction toward the first opening (41).

6. The cleaning equipment as described in claim 5, characterized in that, The inlet of the first fluid channel (20) is located at the upper part of the device body, and the external fluid is the air outside the cleaning device; or, the inlet of the first fluid channel (20) is located downstream of the filter assembly (42), and the external fluid is the fluid filtered by the filter assembly (42).

7. The cleaning equipment as described in claim 5 or 6, characterized in that, The first opening (41) includes an upper sidewall (431), a lower sidewall (432), an inlet end (411), and an outlet end (412). The outlet end (412) is closer to the filter assembly (42) than the inlet end (411). The first direction is the direction toward the outlet end (412). The nozzle (10) is disposed on the lower sidewall (432) or the upper sidewall (431).

8. The cleaning equipment as described in claim 5 or 6, characterized in that, The first opening (41) includes an upper sidewall (431), a lower sidewall (432), a left sidewall (433), a right sidewall (434), an inlet end (411), and an outlet end (412). The outlet end (412) is closer to the filter assembly (42) than the inlet end (411). The first direction is the direction towards the outlet end (412). The nozzle (10) is disposed on or inside at least one of the lower sidewall (432), the upper sidewall (431), the left sidewall (433), and the right sidewall (434). When the nozzle (10) is disposed inside the sidewall, a corresponding through hole is provided on the sidewall corresponding to the nozzle of the nozzle.

9. The cleaning equipment as described in claim 5, characterized in that, The second nozzle (18) sprays fluid in a direction generally opposite to the first direction, and the fluid it sprays gathers the debris in a first area at the first opening (41), wherein the first area at least partially overlaps with the area covered by the travel path of the cleaning device.

10. The cleaning equipment as described in claim 8, characterized in that, The nozzle (10) is at least two, and at least two of the nozzles (10) are disposed on the left side wall (433) and the right side wall (434), or disposed in the internal space of the left side wall (433) and the right side wall (434).

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