Filtering device of cleaning robot and cleaning robot

Abstract

The utility model discloses a filtering device of a cleaning robot. Comprising a filter bin, a first one-way check valve and a second one-way check valve. A liquid inlet is formed in the bottom of the filtering bin, a liquid outlet is formed in the top of the filtering bin, the first one-way check valve is arranged in the filtering bin and is arranged above the liquid inlet close to the liquid inlet, and external liquid enters the filtering bin through one-way conduction of the first one-way check valve; the second one-way check valve is arranged on the outer surface of the top of the filtering bin and closely arranged above the liquid outlet, and liquid in the filtering bin is guided out of the filtering bin in a one-way mode through the second one-way check valve; the opening hydraulic pressure of the first one-way check valve is smaller than that of the second one-way check valve. According to the filtering device, when the hydraulic pressure in the filtering bin reaches the opening hydraulic pressure of the second one-way check valve, the second one-way check valve is opened to release pressure, the water pump is prevented from being damaged due to overheating, and the filtering stability and the anti-blocking capacity of the filtering bin are improved.

Description

TECHNICAL FIELD

[0001] The utility model mainly applies to robot field, and specifically relates to a filter device of cleaning robot and cleaning robot. BACKGROUND

[0002] When the underwater cleaning robot cleans the underwater garbage, the filter device is often needed to collect the garbage, the filter device absorbs the water with garbage and retains the garbage in the filter bin, and then discharges the filtered water into the swimming pool.

[0003] The inventor of the present application finds that in the case that the filter bin is full of garbage, the filter screen is easy to be blocked, which leads to the increase of the hydraulic pressure in the filter bin. In this case, the resistance of the water pump increases, the water pump is easy to be damaged, and the cleaning efficiency of the underwater cleaning robot is affected.

[0004] The content of the background section merely represents the knowledge of the discloser and does not necessarily represent the prior art in the field. UTILITY MODEL CONTENT

[0005] In order to solve the problems in the prior art, the utility model provides a filter device of cleaning robot.

[0006] The utility model discloses a filter device of cleaning robot, include: filter bin, first check valve and second check valve, wherein the bottom of filter bin sets up liquid inlet, and the top sets up liquid outlet, first check valve sets up in the inside of filter bin, and is closely adjacent liquid inlet and is set above liquid inlet, and outside liquid passes through first check valve and is communicated to filter bin, and second check valve sets up in the top outer surface of filter bin, and is closely adjacent and is set above liquid outlet, and the liquid in the inside of filter bin passes through second check valve and is communicated to the outside of filter bin, and the opening hydraulic pressure of first check valve is less than the opening hydraulic pressure of second check valve.

[0007] Optionally, the filter bin comprises a filter bin body, a bottom cover, the bottom cover is arranged at the bottom of the filter bin body, one side of the bottom cover is connected with the filter bin body in a shaft mode, and the other side of the bottom cover is connected with the filter bin body in a clamping mode, a first filter screen is arranged around and on the top of the filter bin body, and a second filter screen assembly is detachably arranged in the inside of the filter bin body, the second filter screen assembly comprises a second filter screen, an upper end cover and a lower end cover, the upper end cover is provided with an upper end cover opening, and the upper end cover opening is arranged at a position opposite to the liquid outlet.

[0008] Optionally, the first check valve comprises a first elastic sheet, the second check valve comprises a second elastic sheet and a third filter screen assembly arranged below the second elastic sheet, and the elasticity of the first elastic sheet is smaller than that of the second elastic sheet.

[0009] Optionally, the bottom cover is provided with a mounting clamping groove.

[0010] Further, the upper end cover and the lower end cover are both provided with sealing strips.

[0011] Optionally, the first elastic sheet is a first rubber sheet, and the second elastic sheet is a second rubber sheet.

[0012] Optionally, the filter device further comprises a sterilization part. The sterilization part is arranged on the inner top of the filter bin and is used for sterilizing and disinfecting the liquid in the filter bin.

[0013] Optionally, the filter device further comprises a liquid flow sensor. The liquid flow sensor is arranged at the position of the liquid outlet and below the second one-way check valve and is used for detecting the flow of the liquid flowing through the liquid outlet.

[0014] Optionally, the filter device further comprises a water quality sensor. The water quality sensor is arranged at the position of the liquid outlet and below the second one-way check valve and is used for detecting the water quality of the liquid flowing through the liquid outlet.

[0015] The filter device of the cleaning robot has the following beneficial effects.

[0016] The filter device of the cleaning robot has the following beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 The exploded structural schematic diagram of the filter device of the embodiment of the present application is shown.

[0019] Figure 2 The schematic diagram of the filter bin of the filter device of the embodiment of the present application is shown.

[0020] Figure 3 The cross-sectional schematic diagram of the filter device of the embodiment of the present application in one viewing angle in one implementation manner is shown.

[0021] Figure 4 FIG. 2 shows a schematic view of a second filter screen assembly according to an embodiment of the present application;

[0022] Figure 5 FIG. 3 shows a cross-sectional view of the filter device according to an embodiment of the present application from another perspective in one implementation.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] Filter bin 10, second one-way check valve 11, first one-way check valve 12, liquid inlet 13, liquid outlet 14, sterilization part 15, liquid flow sensor 16, water quality sensor 17, filter bin body 101, first filter screen 102, bottom cover 103, second filter screen assembly 104, second spring plate 111, third filter screen assembly 112, mounting clamping groove 1031, lower end cover 1041, upper end cover 1042, second filter screen 1043, upper end cover opening 1044. DETAILED DESCRIPTION

[0025] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings. Example embodiments, however, can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the several views.

[0026] The described features, structures, or characteristics can be combined in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the technology can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In these instances, well-known structures, methods, devices, implementations, materials, and operations are not shown or described in detail.

[0027] In addition, the terms "comprise / comprising" and "include / including" and any variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, system, product or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, system, product or apparatus.

[0028] The terms "first", "second", and the like, in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of use in either order.

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0030] According to example embodiments, as shown in Figure 1 , Figure 2 and Figure 3 , the filter device of the cleaning robot comprises a filter bin 10, a first one-way valve 12 and a second one-way valve 11.

[0031] The bottom of the filter bin 10 is provided with an inlet 13. The top of the filter bin 10 is provided with an outlet 14. The first one-way valve 12 is arranged inside the filter bin 10 and is arranged above the inlet 13 adjacent to the inlet 13. The second one-way valve 11 is arranged on the outer surface of the top of the filter bin 10 and is arranged above the outlet 14 adjacent to the outlet 14.

[0032] For example, external liquid (for example, pool water in a swimming pool) enters the inside of the filter bin 10 through the inlet 13. In the case that there is less garbage in the filter bin 10, the negative pressure value in the filter bin 10 is less than the opening hydraulic pressure of the second one-way valve 11, and the second one-way valve 11 is in a closed state. The pool water entering the inside of the filter bin 10 directly flows out of the filter bin 10 after being filtered by the filter screen arranged on the filter bin 10, and the garbage is intercepted in the inside of the filter bin 10.

[0033] As the garbage in the filter bin 10 accumulates, the negative pressure value in the filter bin 10 becomes larger. In the case that the negative pressure value in the filter bin 10 reaches the opening hydraulic pressure of the second one-way valve 11, the second one-way valve 11 opens, and part of the pool water in the inside of the filter bin 10 flows out of the filter bin 10 through the second one-way valve 11. The hydraulic pressure in the inside of the filter bin 10 decreases, thereby reducing the pressure of the water pump and enabling the water pump to work normally.

[0034] The filter device of the cleaning robot of the present embodiment is provided with one-way valves with different opening hydraulic pressures. The opening hydraulic pressure of the first one-way valve 12 is less than the opening hydraulic pressure of the second one-way valve 11. In the case that the garbage in the filter bin 10 accumulates and the negative pressure becomes larger and reaches the opening hydraulic pressure of the second one-way valve 11, the second one-way valve 11 opens. The pool water in the filter bin 10 flows out through the second one-way valve 11, reducing the negative pressure in the inside of the filter bin 10 and reducing the pressure of the water pump, thereby buffering the water pump, reducing the damage caused by overheating of the water pump, and improving the stability of the cleaning robot and the anti-blocking ability of the filter device.

[0035] According to example embodiments, as shown inFigure 1 , Figure 2 and Figure 4 As shown in FIG. 1, the filter bin 10 comprises a filter bin body 101. The bottom of the filter bin body 101 is provided with a bottom cover 103. One side of the bottom cover 103 is connected with the filter bin body 101 by a shaft. The other side of the bottom cover 103 is connected with the filter bin body 101 by a clamping connection.

[0036] Optionally, the shaft connection is achieved by a shaft connecting piece. Through the shaft connecting piece, the bottom cover 103 can be freely opened and closed. When the bottom cover 103 is opened, the second filter screen assembly 104 can be inserted into the filter bin 10 from the bottom of the filter bin 10. When the bottom cover 103 is closed, the bottom of the filter bin 10 is closed, and the second filter screen assembly 104 is fixed inside the filter bin 10 to perform the filtering and cleaning work.

[0037] Optionally, the clamping connection of the other side of the bottom cover 103 with the filter bin body 101 is achieved by a clamping device composed of a pressing button provided on the bottom cover 103 and a protrusion provided on the filter bin 10. For example, when the user needs to open the bottom cover to clean the garbage in the filter bin, the pressing button can be pressed, the clamping device is decoupled, and the bottom cover is opened.

[0038] The filter bin 10 further comprises a first filter screen 102. The first filter screen 102 is provided around and on the top of the filter bin body 101. For example, the first filter screen 102 is a square filter screen uniformly distributed around and on the top of the filter bin body 101.

[0039] The second filter screen assembly 104 is detachably provided inside the filter bin 10. For example, the shape of the second filter screen assembly 104 can be the same as the shape of the inside of the filter bin 10. The second filter screen assembly 104 can be conveniently replaced by opening the bottom cover 103. The bottom of the filter bin 10 has an opening. When the bottom cover 103 is opened, the second filter screen assembly 104 is placed into the inside of the filter bin 10 through the opening at the bottom of the filter bin 10; after the bottom cover 103 is closed, the second filter screen assembly 104 is fixed inside the filter bin 10.

[0040] The second filter screen assembly 104 comprises a second filter screen 1043, an upper end cover 1042, a lower end cover 1041, and an upper end cover opening 1044. The upper end cover opening 1044 is provided at the middle position of the upper end cover 1042 and opposite to the liquid outlet 14.

[0041] For example, when the second filter screen assembly 104 is put into the inside of the filter bin 10, the second filter screen assembly 104 performs the filtering work. The first filter screen 102 on the top of the filter bin 10 needs to be covered to avoid the interference of the first filter screen 102 to the second filter screen assembly 104. The upper end cover 1042 covers the first filter screen 102 at this position to avoid the interference of the first filter screen 102 to the second filter screen assembly 104.

[0042] The upper end cover opening 1044 of the second filter screen assembly 104 is the outlet of the pool water in the inside of the second filter screen assembly 104 to flow out of the filter bin 10. The upper end cover opening 1044 is arranged opposite to the liquid outlet 14 to ensure that the pool water flows out of the filter bin 10 through the liquid outlet 14 after flowing out of the upper end cover opening 1044.

[0043] For example, when the second filter screen assembly 104 is taken out, only the first filter screen 102 can be used to perform the filtering cleaning. For example, the first filter screen 102 can be a coarse filter screen used to filter the garbage with relatively large particles, such as leaves, sand, hair, etc. In the case of needing to intercept larger particles, the filtering precision of the second filter screen assembly 104 can be lower than that of the first filter screen 102. In the case of putting the second filter screen assembly 104 into the inside of the filter bin 10, the second filter screen assembly 104 is used to intercept the garbage with larger particles. The first filter screen 102 performs the secondary filtering to the pool water flowing out of the second filter screen assembly 104. In this way, the garbage with relatively small particles can be intercepted, and the graded filtering of the garbage is realized.

[0044] In the case of needing to perform the filtering with higher precision, the filtering precision of the second filter screen assembly 104 can be higher than that of the first filter screen 102. After the second filter screen assembly 104 with higher precision is put into the inside of the filter bin 10, the filtering with higher precision is performed.

[0045] For example, the second filter screen assembly 104 is provided with the upper end cover opening 1044, and the upper end cover opening 1044 is not smaller than the liquid outlet 14 of the filter bin 10. Through this arrangement, the interference of the upper end cover opening 1044 of the second filter screen assembly 104 to the second one-way check valve 11 arranged at the liquid outlet 14 can be avoided, so that the second one-way check valve 11 can normally open and close according to the size of the hydraulic pressure in the inside of the filter bin 10.

[0046] The filtering device of the cleaning robot of the embodiment can, in the case that the filtering precision of the second filter screen assembly 104 is lower than that of the first filter screen 102, trap relatively large garbage by the second filter screen assembly 104 and trap relatively small garbage by the first filter screen 102, so that the filtering of the garbage is realized in stages. In the case that the filtering precision of the second filter screen assembly 104 is higher than that of the first filter screen 102, higher-precision filtering is realized.

[0047] According to the example embodiment, as shown in Figure 1 and Figure 3 The first one-way valve 12 can be a first elastic sheet, and the second one-way valve 11 includes a second elastic sheet 111 and a third filter screen assembly 112 arranged below the second elastic sheet 111.

[0048] The third filter screen assembly 112 is provided with a third filter screen. The third filter screen can prevent the trapped garbage in the filter chamber 10 from leaking to the outside of the filter chamber 10.

[0049] The elasticity of the first elastic sheet is smaller than that of the second elastic sheet 111. When the water pump is turned on and the hydraulic pressure of the external pool water on the first elastic sheet is greater than the critical pressure at which the first elastic sheet is elastically deformed, the first elastic sheet is elastically deformed, and the liquid inlet 13 is opened. The external pool water enters the inside of the filter chamber 10 through the liquid inlet 13. As the garbage in the filter chamber 10 increases, the hydraulic pressure in the inside of the filter chamber 10 gradually increases. When the hydraulic pressure in the inside of the filter chamber 10 on the second elastic sheet 111 is greater than the critical pressure at which the second elastic sheet 111 is elastically deformed, the second elastic sheet 111 is elastically deformed, and the liquid outlet 14 is opened.

[0050] Exemplarily, the first elastic sheet and the second elastic sheet 111 can be rubber sheets, the first elastic sheet is a first rubber sheet, and the second elastic sheet 111 is a second rubber sheet.

[0051] According to the example embodiment, as shown in Figure 1 and Figure 2 The bottom cover 103 is provided with a mounting clamping groove 1031. The lower end cover 1041 of the second filter screen assembly 104 is attached to the mounting clamping groove 1031. The upper end cover 1042 of the second filter screen assembly 104 is attached to the inner top of the filter chamber 10. The upper end cover opening 1044 is attached to the liquid outlet 14. Through this embodiment, the sealing problem of the contact part between the second filter screen assembly 104 and the inner wall of the filter chamber 10 is solved, and the first filter screen 102 and the second filter screen assembly 104 can be isolated.

[0052] The upper end cover opening 1044 is attached to the liquid outlet 14, so that there is almost no gap between the second filter screen assembly 104 and the inside of the filter bin 10. There is almost no gap between the first filter screen 102 and the second filter screen assembly 104. In this way, garbage in the second filter screen assembly 104 can be prevented from leaking into the gap between the second filter screen assembly 104 and the first filter screen assembly 102.

[0053] In this way, when the second filter screen assembly 104 is installed in the inside of the filter bin 10, the second filter screen assembly 104 can be used for filtering alone.

[0054] Further, the outer periphery of the upper end cover 1042 and the lower end cover 1041 of the second filter screen assembly 104 can be provided with a sealing strip.

[0055] Through the above implementation, the sealing effect between the first filter screen 102 and the second filter screen assembly 104 can be ensured, and the second filter screen assembly 104 can be used for filtering the pool water in the inside of the filter bin 10 alone.

[0056] The filter device of the cleaning robot in the embodiment, the upper end cover 1042 of the second filter screen assembly 104 is attached to the inside top of the filter bin 10, the upper end cover opening 1044 is attached to the liquid outlet 14, and the outer periphery of the upper end cover 1042 and the lower end cover 1041 of the second filter screen assembly 104 is provided with a sealing strip. The sealing effect between the first filter screen 102 and the second filter screen assembly 104 is improved, and the second filter screen assembly 104 can be used for filtering the pool water in the inside of the filter bin 10 alone.

[0057] According to an example embodiment, as shown in Figure 5 The filter device of the cleaning robot further includes a sterilization part 15. The sterilization part 15 is arranged on the inside top of the filter bin 10 to sterilize and disinfect the pool water in the inside of the filter bin 10. For example, the sterilization part 15 is an ultraviolet sterilization lamp.

[0058] According to an example embodiment, as shown in Figure 5 The filter device of the cleaning robot further includes a liquid flow sensor 16. The liquid flow sensor 16 is arranged at the position of the liquid outlet 14 and below the second one-way check valve 11. The liquid flow sensor 16 is used to detect the flow of the liquid flowing through the liquid outlet 14.

[0059] For example, when the garbage in the filter bin 10 increases, the hydraulic pressure in the filter bin 10 increases. When the hydraulic pressure in the filter bin 10 increases to the opening hydraulic pressure of the second one-way check valve 11, the second one-way check valve 11 opens. When the second one-way check valve 11 opens, part of the pool water in the filter bin 10 flows out to the outside of the filter bin 10 through the liquid outlet 14. The liquid flow sensor 16 detects the flow of the liquid flowing through the liquid outlet 14, so as to determine the filling amount of the garbage in the filter bin 10.

[0060] The liquid flow sensor 16 transmits the detected signal to the controller of the cleaning robot, so that the controller of the cleaning robot outputs a corresponding prompt message, thereby informing the user of the garbage filling amount of the filter bin 10. Whether the cleaning needs to be stopped is determined according to the garbage filling amount of the filter bin 10. The above-mentioned prompt message can be realized in the form of sound, light, etc., which is not limited here.

[0061] The filter device of the cleaning robot of the embodiment can detect the garbage filling amount in the filter bin and prompt the user, which is beneficial to the user to determine whether the filter bin needs to be cleaned or replaced.

[0062] According to an example embodiment, as Figure 5 shown, the filter device of the cleaning robot further comprises a water quality sensor 17. The water quality sensor 17 is arranged at the position of the liquid outlet 14 and below the second one-way check valve 11. The water quality sensor 17 is used to detect the water quality of the pool water flowing through the liquid outlet 14.

[0063] For example, the water quality that can be reached by the water filtered by the cleaning robot is mainly determined by the precision of the filter screen. In the case that the user needs to filter the water to a certain water quality, the second filter screen assembly 104 needs to be replaced by a filter assembly with corresponding precision according to specific needs. The water quality detector 17 is used to detect the water quality of the pool water in the filter bin 10 and transmit the water quality detection signal to the controller of the cleaning robot, so that the controller of the cleaning robot outputs a corresponding prompt message to inform the user of the water quality of the pool water in the filter bin 10. Whether the cleaning needs to be continued is determined according to the water quality of the pool water in the filter bin 10. The above-mentioned prompt message can be realized in the form of sound, light, etc., which is not limited here.

[0064] The filter device of the cleaning robot of the embodiment can determine the water quality of the filtered pool water, which is beneficial to determine whether the cleaning needs to be continued.

[0065] The present application also relates to a cleaning robot (for example, an underwater cleaning robot) comprising the filter device of the cleaning robot described above.

[0066] For example, the cleaning robot can be a pool cleaning robot.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application but not to limit it, and although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the specific embodiments of the present application can be modified or equivalently replaced without departing from the spirit and scope of the present application, and any modification or equivalent replacement without departing from the spirit and scope of the present application should be covered in the protection scope of the claims of the present application.

Claims

1. A filtration device for a cleaning robot, characterized in that, include: A filter chamber, wherein an inlet is provided at the bottom and an outlet is provided at the top; The first one-way check valve is located inside the filter chamber and is positioned above the liquid inlet, adjacent to the liquid inlet. External liquid flows into the filter chamber unidirectionally through the first one-way check valve. The second one-way check valve is located on the top outer surface of the filter chamber and is located immediately above the liquid outlet. The liquid inside the filter chamber is discharged to the outside of the filter chamber in one direction through the second one-way check valve. The opening hydraulic pressure of the first one-way check valve is less than that of the second one-way check valve.

2. The filtration device for the cleaning robot according to claim 1, characterized in that, The filter chamber includes: Filter chamber main body; A bottom cover is provided at the bottom of the filter chamber body, and one side of the bottom cover is connected to the filter chamber body shaft, while the other side of the bottom cover is snapped into the filter chamber body. The first filter screen is disposed around the perimeter and top of the filter chamber body; The second filter assembly is detachably installed inside the filter chamber body; The second filter assembly includes a second filter, a lower end cover and an upper end cover. The upper end cover has an opening, and the position of the upper end cover opening is opposite to the position of the liquid outlet.

3. The filtration device for the cleaning robot according to claim 2, characterized in that, The bottom cover has an installation slot on its inner side; The lower end cap of the second filter assembly fits into the mounting slot, the upper end cap of the second filter assembly fits into the inner top of the filter chamber, and the opening of the upper end cap fits into the liquid outlet. Both the upper and lower end caps are provided with sealing strips on their outer periphery.

4. The filtration device for the cleaning robot according to claim 1, characterized in that, The first one-way check valve is the first spring plate; The second one-way check valve includes a second spring and a third filter assembly disposed below the second spring; The elasticity of the first spring is less than that of the second spring.

5. The filtration device for the cleaning robot according to claim 4, characterized in that, The first spring is a first rubber sheet, and the second spring is a second rubber sheet.

6. The filtration device for the cleaning robot according to claim 1, characterized in that, The filtration device of the cleaning robot also includes: The sterilization section is located on the top inner side of the filter chamber to sterilize and disinfect the liquid inside the filter chamber.

7. The filtration device for the cleaning robot according to claim 1, characterized in that, The filtration device of the cleaning robot also includes: A liquid flow sensor is installed at the liquid outlet and below the second one-way check valve to detect the flow rate of the liquid flowing through the liquid outlet.

8. The filtration device for the cleaning robot according to claim 1, characterized in that, The filtration device of the cleaning robot also includes: A water quality sensor is installed at the liquid outlet and below the second one-way check valve to detect the water quality of the liquid flowing through the liquid outlet.

9. A cleaning robot, characterized in that, Includes the filtration device according to any one of claims 1-8.

10. The cleaning robot according to claim 9, characterized in that, The cleaning robot is a swimming pool cleaning robot.

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