A protection device for an air suction motor and a floor cleaning robot

Abstract

The application provides a protection device of a suction motor and a floor cleaning robot. The protection device of the suction motor comprises a floor cleaning robot body, a suction motor, a sewage tank and a protection assembly. A mounting seat is installed on the sewage tank. The mounting seat is provided with a first flow channel. A floating ball filter cartridge is installed on the mounting seat and is located in the sewage tank. A floating ball is located in the floating ball filter cartridge and can be lifted relative to the inner cavity of the floating ball filter cartridge under the driving of the sewage in the sewage tank, so that the floating ball can block or open the first flow channel. A filter element is installed on the mounting seat and is located in the first flow channel. The first flow channel is communicated with the inner cavity of the floating ball filter cartridge and is communicated with the suction motor through a pipeline. When the sewage level is too high, the floating ball is sucked up by the suction motor by installing the floating ball in the floating ball filter cartridge, so that the suction of the sewage into the suction motor is prevented, thereby playing a protection role on the suction motor, avoiding the failure of the suction motor due to the suction of the sewage, and prolonging the service life of the suction motor.

Description

Technical Field

[0001] This utility model relates to the technical field of floor cleaning robots, and in particular to a protective device for a suction motor and a floor cleaning robot. Background Technology

[0002] With the development of technology, floor cleaning robots are being applied in industry, playing a highly efficient cleaning role, reducing labor costs while improving work efficiency and cleanliness. In existing technology, floor cleaning robots consist of a robot body, a suction motor, and a wastewater tank. The suction motor is installed in the robot body, and its suction port is connected to the wastewater tank. However, when the water level in the wastewater tank is too high, the suction motor can easily draw wastewater into itself through the suction port, causing the suction motor of existing floor cleaning robots to malfunction. Utility Model Content

[0003] The purpose of this utility model is to provide a protective device for a suction motor and a floor cleaning robot. The suction motor is installed on the main body of the floor cleaning robot. The sewage tank is equipped with a sewage trough for holding sewage. The protective components include a mounting base, a float filter cartridge, a float, and a filter element. The mounting base is installed on the sewage tank. The mounting base has a first flow channel. The float filter cartridge is installed on the mounting base and is located inside the sewage trough. The float is located inside the float filter cartridge and can rise and fall relative to the inner cavity of the float filter cartridge under the influence of the sewage in the sewage trough, so that the float can block or open the first flow channel. The filter element is installed on the mounting base and is located inside the first flow channel, which connects to the inner cavity of the float filter cartridge and is connected to the suction motor through a pipe. By installing a float inside the float filter cartridge, when the sewage level is too high, the suction motor will lift the float, preventing sewage from being sucked into the suction motor, thereby protecting the suction motor, avoiding the suction motor from failing due to sewage intake, and extending the service life of the suction motor.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a protective device for a suction motor, applied to a floor cleaning robot, wherein the protective device for the suction motor includes:

[0005] The main body of the floor cleaning robot;

[0006] A suction motor is installed on the main body of the floor cleaning robot;

[0007] A sewage tank is equipped with a sewage trough for holding sewage.

[0008] The protective assembly includes a mounting base, a float filter cartridge, a float, and a filter element. The mounting base is installed in the wastewater tank. The mounting base has a first flow channel. The float filter cartridge is installed in the mounting base and is located within the wastewater tank. The float is located within the float filter cartridge and can rise and fall relative to the inner cavity of the float filter cartridge under the influence of the wastewater in the wastewater tank, allowing the float to block or open the first flow channel. The filter element is installed in the mounting base and is located within the first flow channel, which connects to the inner cavity of the float filter cartridge and is connected to the suction motor via a pipe.

[0009] Optionally, the mounting base includes a mounting base body, a mounting part, and a support part;

[0010] The mounting part is connected to the mounting base body and is detachably mounted on the sewage tank;

[0011] The support portion is disposed at one end of the mounting base body away from the mounting portion and is located inside the sewage tank; the support portion supports the float filter cartridge, the float, and the filter element;

[0012] The mounting base body connects the mounting part and the support part. The mounting base body is provided with a first flow channel, which passes through the mounting base body, the mounting part and the support part. The two ends of the first flow channel are respectively connected to the inner cavity of the float filter cartridge and the suction motor.

[0013] Optionally, the support portion includes a first sub-support portion and a second sub-support portion; the first sub-support portion is located above the second sub-support portion and supports the filter element;

[0014] The second sub-support is connected to the float filter cylinder and supports the float filter cylinder; the float filter cylinder has an inner cavity that communicates with the sewage tank, and the sewage enters the inner cavity through the float filter cylinder, and the float floats on the sewage in the inner cavity.

[0015] Optionally, the portion of the first flow channel relative to the second sub-support portion serves as the air intake of the first flow channel;

[0016] The float floats on the sewage in the inner cavity and rises as the sewage increases. The float gradually approaches the air intake of the first flow channel and can block the air intake of the first flow channel.

[0017] Optionally, when the float is away from the air inlet of the first flow channel, the air inlet of the first flow channel is in an open state, and a negative pressure effect is formed on the sewage under the negative pressure driven by the suction motor.

[0018] The filter element is used to filter the gas input through the air intake, and the filtered gas is input to the air intake motor along the first flow channel and pipe.

[0019] Optionally, the support portion has a top opening, which is arranged relative to the filter element;

[0020] The protective assembly also includes a cover attached to the mounting base and capable of closing the top opening to restrict gas escape through the top opening.

[0021] Optionally, the cover is connected to a reinforcing member for reinforcing the cover; the reinforcing member is connected to the lower side wall of the cover and is located within the first flow channel.

[0022] Optionally, the mounting base has a connecting seat on its peripheral side wall, and the cover has an anti-loss support arm, which is connected to the connecting seat and forms a fixed connection structure with the connecting seat.

[0023] Optionally, the anti-loss arm includes a column and an anti-loss part;

[0024] The column passes through the connecting seat, the anti-loss part is located on the lower side of the connecting seat, and the outer diameter of the anti-loss part is larger than the inner diameter of the through hole in the connecting seat through which the column passes.

[0025] To achieve the above objectives, this utility model provides the following technical solution: a floor cleaning robot, including the protective device for the suction motor.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] This utility model provides a protective device for a suction motor and a floor cleaning robot. The suction motor is installed on the main body of the floor cleaning robot. The wastewater tank has a wastewater trough for holding wastewater. The protective components include a mounting base, a float filter cartridge, a float, and a filter element. The mounting base is installed on the wastewater tank. The mounting base has a first flow channel. The float filter cartridge is installed on the mounting base and is located inside the wastewater trough. The float is located inside the float filter cartridge and can rise and fall relative to the inner cavity of the float filter cartridge under the influence of the wastewater in the wastewater trough, so that the float can block or open the first flow channel. The filter element is installed on the mounting base and is located inside the first flow channel, which connects to the inner cavity of the float filter cartridge and is connected to the suction motor through a pipe. By installing a float inside the float filter cartridge, when the wastewater level is too high, the suction motor will lift the float, preventing wastewater from being sucked into the suction motor, thereby protecting the suction motor, avoiding the suction motor from failing due to the intake of wastewater, and extending the service life of the suction motor. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0030] Figure 1 A schematic diagram of a protective device for a suction motor according to an embodiment of this application is shown.

[0031] Figure 2 An exploded view of a protective device for a suction motor according to an embodiment of this application is shown.

[0032] Figure 3 A cross-sectional view of a protective device for a suction motor according to an embodiment of this application is shown.

[0033] Figure 4 A schematic diagram of the protective components of a protective device for a suction motor according to an embodiment of this application is shown.

[0034] Figure 5 A cross-sectional view of the protective component of a protective device for a suction motor according to an embodiment of this application is shown.

[0035] Figure Labels

[0036] 100. Protective devices for the suction motor;

[0037] 10. Main body of the floor cleaning robot;

[0038] 20. Suction motor;

[0039] 30. Sewage tank; 30a. Sewage trough;

[0040] 40. Protective component; 41. Mounting base; 41a. First flow channel; 411. Mounting base body; 412. Mounting part; 413. Support part; 413a. Top opening; 4131. First sub-support part; 4132. Second sub-support part; 414. Connecting seat; 42. Float filter cartridge; 42a. Inner cavity; 43. Float; 44. Filter element; 45. Cover; 451. Reinforcing part; 452. Anti-loss support arm; 4521. Column; 4522. Anti-loss part. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0042] Please refer to the attached document. Figures 1-5 This application provides a protective device 100 for a suction motor, which is applied to a floor cleaning robot and is used to protect the suction motor 20.

[0043] Please refer to the attached document. Figures 1-5 In this embodiment, the protective device 100 for the suction motor includes a floor cleaning robot body 10, a suction motor 20, a wastewater tank 30, and a protective component 40. The suction motor 20 is installed on the floor cleaning robot body 10. The wastewater tank 30 is provided with a wastewater trough 30a for containing wastewater. The protective component 40 includes a mounting base 41, a float filter cartridge 42, a float 43, and a filter element 44. The mounting base 41 is installed on the wastewater tank 30. The mounting base 41 is provided with a first flow channel 41a. The float filter cartridge 42 is installed on the mounting base 41 and is located within the wastewater trough 30a. The float 43 is located within the float filter cartridge 42 and can move within the wastewater trough 30a. Driven by the sewage, the float 43 rises and falls relative to the inner cavity 42a of the float filter cartridge 42, allowing the float 43 to block or open the first flow channel 41a. The filter element 44 is installed on the mounting base 41 and is located in the first flow channel 41a, which connects to the inner cavity 42a of the float filter cartridge 42 and is connected to the suction motor 20 through a pipe. By installing the float 43 in the float filter cartridge 42, when the sewage level is too high, the suction motor 20 will suck up the float 43, preventing sewage from being sucked into the suction motor 20, thereby protecting the suction motor 20, preventing the suction motor 20 from failing due to sewage intake, and extending the service life of the suction motor 20.

[0044] Please refer to the attached document. Figures 1-5 In this embodiment, the suction motor 20 is installed on the main body 10 of the floor cleaning robot so that the suction motor 20 can be fixed to the inside of the main body 10 of the floor cleaning robot.

[0045] The sewage tank 30 is provided with a sewage trough 30a, which serves as the internal space of the sewage tank 30 and is used to hold sewage; so that the sewage tank 30 can store sewage through the space of the sewage trough 30a.

[0046] The protective assembly 40 includes a mounting base 41, a float filter cartridge 42, a float 43, and a filter element 44. The mounting base 41 is installed in the sewage tank 30 so that the protective assembly 40 can be fixed to the sewage tank 30 via the mounting base 41. The mounting base 41 is provided with a first flow channel 41a. The float filter cartridge 42 is installed in the mounting base 41 and is located within the sewage tank 30a. The float 43 is located within the float filter cartridge 42 and can rise and fall relative to the inner cavity 42a of the float filter cartridge 42 under the influence of the sewage in the sewage tank 30a, so that the float 43 can block or... The first flow channel 41a is opened; the filter element 44 is installed on the mounting base 41 and is located in the first flow channel 41a. The first flow channel 41a is connected to the inner cavity 42a of the float filter cartridge 42 and is connected to the suction motor 20 through a pipe. By installing a float 43 in the float filter cartridge 42, when the sewage level is too high, the suction motor 20 will suck up the float 43 to prevent sewage from being sucked into the suction motor 20, thereby protecting the suction motor 20, avoiding the suction motor 20 from failing due to sewage intake, and extending the service life of the suction motor 20.

[0047] Please refer to the attached document. Figures 1-5 In this embodiment, the mounting base 41 includes a mounting base body 411, a mounting part 412, and a support part 413. The mounting part 412 is connected to the mounting base body 411 and is detachably mounted on the sewage tank 30 so that the mounting part 412 can be connected to or detached from the sewage tank 30, thereby facilitating the detachable connection between the mounting base 41 and the sewage tank 30 through the mounting part 412. Optionally, the mounting part 412 is detachably connected to the sewage tank 30 by means of bolt connection.

[0048] The support part 413 is located at the end of the mounting base body 411 away from the mounting part 412 and is located inside the sewage tank 30a; the support part 413 supports the float filter cylinder 42, float 43 and filter element 44 so that the float filter cylinder 42, float 43 and filter element 44 are all facing the sewage tank 30a. The mounting base body 411 connects the mounting part 412 and the support part 413. The mounting base body 411 is provided with a first flow channel 41a, which passes through the mounting base body 411, the mounting part 412 and the support part 413. The two ends of the first flow channel 41a are respectively connected to the inner cavity 42a of the float filter cartridge 42 and the suction motor 20, so that the suction motor 20 can adsorb the float 43 in the inner cavity 42a of the float filter cartridge 42 along the first flow channel 41a. This allows the float 43 to block the first flow channel 41a and prevent sewage from being sucked into the suction motor 20, thereby protecting the suction motor 20, preventing the suction motor 20 from failing due to sewage intake and extending the service life of the suction motor 20.

[0049] Please refer to the attached document. Figures 1-5In this embodiment, the support portion 413 is provided with a first sub-support portion 4131 and a second sub-support portion 4132; the first sub-support portion 4131 is located above the second sub-support portion 4132 and supports the filter element 44; the second sub-support portion 4132 is connected to the float filter cylinder 42 and supports the float filter cylinder 42, so that the support portion 413 can support the filter element 44 and the float filter cylinder 42 respectively through the first sub-support portion 4131 and the second sub-support portion 4132; the float filter cylinder 42 is provided with an inner cavity 42a, which is connected to the sewage tank 30a. Sewage enters into the inner cavity 42a through the float filter cylinder 42, and the float 43 floats in the sewage in the inner cavity 42a. The float 43 can rise and fall relative to the inner cavity 42a of the float filter cylinder 42 under the action of the sewage in the inner cavity 42a.

[0050] Please refer to the attached document. Figures 1-5 In this embodiment, the portion of the first flow channel 41a relative to the second sub-support 4132 serves as the air intake of the first flow channel 41a; the float 43 floats on the sewage in the inner cavity 42a and rises as the sewage increases. The float 43 gradually approaches the air intake of the first flow channel 41a and can block the air intake of the first flow channel 41a, preventing sewage from being sucked into the suction motor 20, thereby protecting the suction motor 20, preventing the suction motor 20 from failing due to sewage intake, and extending the service life of the suction motor 20.

[0051] Please refer to the attached document. Figures 1-5 In this embodiment, when the float 43 is far from the air inlet of the first flow channel 41a, the air inlet of the first flow channel 41a is open, and a negative pressure effect is formed on the sewage under the negative pressure driven by the suction motor 20. The filter element 44 is used to filter the gas input through the air inlet. The filtered gas is input to the suction motor 20 along the first flow channel 41a and the pipe, so that the suction motor 20 can adsorb the filtered gas, prevent gas impurities from entering the suction motor 20, and prevent impurities from being sucked into the suction motor 20, thereby playing a protective role for the suction motor 20. The float 43 is made of PE material, and the density of the float 43 is 0.92g / cm³. 3 The float 43 can float in the sewage, the filter element 44 has a filter hole diameter of 1.5×1.5mm, and the distance between the float 43 and the highest liquid level of the sewage is 100mm, which can effectively prevent the floor cleaning robot from being accidentally triggered when it bumps or goes over obstacles during operation.

[0052] Because a sufficient safe distance is maintained between the float 43 and the highest sewage level, the protective component 40 has not been triggered during testing and actual operation. In practice, the protective component 40 will only be triggered if the level gauge fails.

[0053] Please refer to the attached document. Figures 1-5In this embodiment, the support portion 413 is provided with a top opening 413a, which is arranged relative to the filter element 44 to allow gas to flow through the space of the top opening 413a to the first flow channel 41a. The protective assembly 40 also includes a cover 45, which is connected to the mounting base 41 and is capable of closing the top opening 413a to restrict gas from escaping along the top opening 413a and prevent gas leakage.

[0054] The filter element 44 is used to filter dust. In real-world scenarios, such as foundries or land reclamation sites, the dust concentration in the air is relatively high. To prevent dust from damaging the blades of the suction motor 20 and causing rotor dynamic imbalance, the filter element 44 plays a crucial role in protecting the suction motor 20.

[0055] Please refer to the attached document. Figures 1-5 In this embodiment of the application, the cover 45 is connected to a reinforcement member 451, which is used to reinforce the cover 45. The reinforcement member 451 is connected to the lower side wall of the cover 45 and is located in the first flow channel 41a, so as to strengthen the strength of the cover 45 and prevent the cover 45 from deforming due to the large negative pressure generated by the suction motor 20.

[0056] Please refer to the attached document. Figures 1-5 In this embodiment, the peripheral sidewall of the mounting base 41 is provided with a connecting seat 414, and the cover 45 is provided with an anti-loss support arm 452. The anti-loss support arm 452 is connected to the connecting seat 414 and forms a fixed connection structure with the connecting seat 414, so that the cover 45 can be connected to the mounting base 41 through the cooperation of the anti-loss support arm 452 and the connecting seat 414. This makes it easy for the cover 45 to be always connected to the mounting base 41 when it is open relative to the top opening 413a, thus preventing the cover 45 from being lost.

[0057] Please refer to the attached document. Figures 1-5 In this embodiment, the anti-loss arm 452 includes a column 4521 and an anti-loss part 4522; the column 4521 passes through a connecting seat 414, and the anti-loss part 4522 is located on the lower side of the connecting seat 414. The outer diameter of the anti-loss part 4522 is larger than the inner diameter of the through hole in the connecting seat 414 through which the column 4521 passes, so that the connecting seat 414 can restrict the position of the anti-loss part 4522, thereby ensuring that the anti-loss arm 452 is always connected to the connecting seat 414.

[0058] In the second embodiment of the application, a floor cleaning robot includes a protective device 100 for the suction motor. As part of the floor cleaning robot, the protective device 100 for the suction motor plays a role in efficient cleaning, reducing the labor cost of cleaning while improving work efficiency and cleanliness.

[0059] Compared with the prior art, the beneficial effects of this utility model are:

[0060] This utility model provides a protective device 100 for a suction motor and a floor cleaning robot. The suction motor 20 is installed on the main body 10 of the floor cleaning robot. The wastewater tank 30 is provided with a wastewater trough 30a for containing wastewater. The protective component 40 includes a mounting base 41, a float filter cartridge 42, a float 43, and a filter element 44. The mounting base 41 is installed on the wastewater tank 30. The mounting base 41 is provided with a first flow channel 41a. The float filter cartridge 42 is installed on the mounting base 41 and is located inside the wastewater trough 30a. The float 43 is located inside the float filter cartridge 42 and can be driven by the wastewater in the wastewater trough 30a relative to the float filter. The inner cavity 42a of the cylinder 42 rises and falls, allowing the float 43 to block or open the first flow channel 41a. The filter element 44 is installed on the mounting base 41 and is located in the first flow channel 41a. The first flow channel 41a connects to the inner cavity 42a of the float filter cylinder 42 and is connected to the suction motor 20 through a pipe. By installing the float 43 in the float filter cylinder 42, when the sewage level is too high, the suction motor 20 will lift the float 43 to prevent sewage from being sucked into the suction motor 20, thereby protecting the suction motor 20, preventing the suction motor 20 from failing due to sewage intake, and extending the service life of the suction motor 20.

[0061] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0062] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0063] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A protection device for an air suction motor, characterized in that, For use in floor cleaning robots, the protective device for the suction motor includes: The main body of the floor cleaning robot; A suction motor is installed on the main body of the floor cleaning robot; A sewage tank is equipped with a sewage trough for holding sewage. The protective assembly includes a mounting base, a float filter cartridge, a float, and a filter element. The mounting base is installed in the wastewater tank. The mounting base has a first flow channel. The float filter cartridge is installed in the mounting base and is located within the wastewater tank. The float is located within the float filter cartridge and can rise and fall relative to the inner cavity of the float filter cartridge under the influence of the wastewater in the wastewater tank, allowing the float to block or open the first flow channel. The filter element is installed in the mounting base and is located within the first flow channel, which connects to the inner cavity of the float filter cartridge and is connected to the suction motor via a pipe.

2. A guard for a suction motor as claimed in claim 1, wherein The mounting base includes a mounting base body, a mounting part, and a supporting part; The mounting part is connected to the mounting base body and is detachably mounted on the sewage tank; The support portion is disposed at one end of the mounting base body away from the mounting portion and is located inside the sewage tank; the support portion supports the float filter cartridge, the float, and the filter element; The mounting base body connects the mounting part and the support part. The mounting base body is provided with a first flow channel, which passes through the mounting base body, the mounting part and the support part. The two ends of the first flow channel are respectively connected to the inner cavity of the float filter cartridge and the suction motor.

3. A guard for a suction motor as claimed in claim 2, wherein The support portion includes a first sub-support portion and a second sub-support portion; the first sub-support portion is located above the second sub-support portion and supports the filter element; The second sub-support is connected to the float filter cylinder and supports the float filter cylinder; the float filter cylinder has an inner cavity that communicates with the sewage tank, and the sewage enters the inner cavity through the float filter cylinder, and the float floats on the sewage in the inner cavity.

4. A guard for a suction motor as claimed in claim 3, wherein The portion of the first flow channel relative to the second sub-support portion serves as the air intake of the first flow channel; The float floats on the sewage in the inner cavity and rises as the sewage increases. The float gradually approaches the air intake of the first flow channel and can block the air intake of the first flow channel.

5. The protective device for the suction motor according to claim 3, characterized in that, When the float moves away from the air inlet of the first flow channel, the air inlet of the first flow channel is in the open state, and a negative pressure effect is formed on the sewage under the negative pressure driven by the suction motor; The filter element is used to filter the gas input through the air intake, and the filtered gas is input to the air intake motor along the first flow channel and pipe.

6. The air intake screen of claim 2, wherein, The support portion is provided with a top opening, which is arranged relative to the filter element; The protective assembly also includes a cover attached to the mounting base and capable of closing the top opening to restrict gas escape through the top opening.

7. The protective device for the suction motor according to claim 6, characterized in that, The cover is connected to a reinforcing member for strengthening the cover; the reinforcing member is connected to the lower side wall of the cover and is located within the first flow channel.

8. The protective device for the suction motor according to claim 6, characterized in that, The mounting base has a connecting seat on its peripheral side wall, and the cover has an anti-loss support arm. The anti-loss support arm is connected to the connecting seat and is fixedly connected to the connecting seat.

9. The protective device for the suction motor according to claim 8, characterized in that, The anti-loss arm includes a column and an anti-loss part; The column passes through the connecting seat, the anti-loss part is located on the lower side of the connecting seat, and the outer diameter of the anti-loss part is larger than the inner diameter of the through hole in the connecting seat through which the column passes.

10. A floor washing robot, characterized in that, The protective device for the suction motor as described in any one of claims 1 to 9 is included.

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