Floor cleaning equipment

Abstract

The present invention relates to a floor cleaning device, which belongs to the technical field of household appliances and is used to solve the problem of resource waste caused by the motor being in a working state after the existing recovery container is taken out. The floor cleaning device of the present invention includes: a recovery container, which is provided with a recovery cavity for storing the dust-containing fluid absorbed by the floor cleaning device; a liquid detector, which is located in the recovery cavity, for detecting the liquid storage condition in the recovery cavity and generating a corresponding liquid signal according to the liquid storage condition; a controller, which is connected to the liquid detector, for receiving the liquid signal and generating a motor control instruction according to the liquid level signal; a motor, which is connected to the controller, for receiving the motor control instruction; wherein, when the liquid level in the recovery container is greater than or equal to a preset liquid level, the controller sends a motor stop instruction according to the corresponding liquid signal, and the motor stops rotating.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a floor cleaning device. Background Art

[0002] Currently, existing floor cleaning equipment has a liquid level valve installed in the recovery water tank. The liquid level valve moves with the height of the liquid in the recovery water tank. When the liquid contacts the gas pipeline in the recovery water tank, the liquid level valve forms a barrier to the gas pipeline, preventing the liquid from entering the negative pressure motor. At this time, the recovery water tank can be removed from the floor cleaning equipment to clean out the liquid and solid debris in the recovery water tank. However, when the recovery water tank is removed, the negative pressure motor is still in operation, which not only wastes the power of the floor cleaning equipment, but also increases the operating time of the negative pressure motor, shortening the negative pressure motor's service life. Summary of the Invention

[0003] In view of the above analysis, an embodiment of the present invention aims to provide a floor cleaning device to solve the problem of resource waste caused by the motor still being in working state after the existing recycling container is taken out.

[0004] The present invention provides a floor cleaning device, comprising:

[0005] a recovery container, provided with a recovery chamber for storing the dust-laden fluid absorbed by the floor cleaning device;

[0006] a liquid detector located in the recovery chamber to detect the liquid storage condition in the recovery chamber and generate a corresponding liquid signal according to the liquid storage condition;

[0007] a controller connected to the liquid detector to receive the liquid signal and generate a motor control instruction according to the liquid level signal;

[0008] a motor connected to the controller to receive the motor control instruction;

[0009] When the liquid level in the recovery container is greater than or equal to a preset liquid level, the controller sends a motor stop instruction according to a corresponding liquid signal, and the motor stops rotating.

[0010] Furthermore, a filter barrel is provided in the recovery container to separate the dust-laden fluid entering the recovery container into solid and liquid;

[0011] The preset liquid level is lower than or equal to the bottom end surface of the filter barrel.

[0012] Furthermore, the liquid detector is a liquid level sensor, and the detection head of the liquid level sensor is located at the bottom of the recovery chamber;

[0013] The liquid level sensor detects the liquid level signal of the liquid in the recovery chamber in real time and transmits the liquid level signal to the controller. The controller determines the relationship between the real-time liquid level and the preset liquid level based on the received liquid level signal. When the real-time liquid level is greater than or equal to the preset liquid level, the controller issues a motor stop command to control the motor to stop rotating.

[0014] Furthermore, the liquid detector is a water immersion sensor, and the detection end of the water immersion sensor is flush with the preset liquid level;

[0015] When the liquid level in the recovery chamber contacts the detection end, the water immersion sensor generates a water contact signal and transmits the water contact signal to the controller. The controller issues a motor stop instruction based on the received water contact signal to control the motor to stop rotating.

[0016] Furthermore, the floor cleaning device is provided with a plurality of water immersion sensors, which are located at different positions of the recovery chamber;

[0017] When the controller receives water contact signals transmitted by two or more water sensors, it issues the motor stop instruction.

[0018] Furthermore, the floor cleaning device further includes an alarm, which is connected to the controller;

[0019] When the controller issues a motor stop instruction, it also issues a warning instruction to the alarm device, controlling the alarm device to issue an alarm message;

[0020] The alarm device can emit one or more alarm information including alarm sound, alarm light, alarm text or alarm graphic.

[0021] Furthermore, the recovery container is provided with a fluid inlet communicating with the recovery cavity;

[0022] The filter barrel is installed in the recovery chamber, and the filter barrel is provided with a liquid inlet;

[0023] The recovery container is further provided with a fluid pipeline, one end of the fluid pipeline is communicated with the fluid inlet, and the other end of the fluid pipeline is communicated with the liquid inlet.

[0024] Furthermore, the recycling container further comprises an upper end cover and a box body, wherein the upper end cover is located above the box body, and the upper end cover and the box body jointly define the recycling cavity;

[0025] The bottom of the box body is provided with the fluid inlet;

[0026] The fluid pipeline is installed in the box;

[0027] A portion of the filter barrel is connected to the upper end cover, and the remaining portion of the filter barrel is located in the box.

[0028] Furthermore, the floor cleaning device is further provided with a detection bracket, a portion of which is connected to the upper end cover, and the remaining portion of which is located in the recovery cavity and between the side wall of the box body and the side wall of the filter barrel;

[0029] The liquid detector is installed on the detection bracket.

[0030] Furthermore, the fluid conduit includes a first elbow, a second elbow, a longitudinal pipe and a transverse pipe connected in sequence;

[0031] The first elbow is connected to the fluid inlet;

[0032] The longitudinal tube is closely attached to the side wall of the box;

[0033] The transverse tube is connected to the liquid inlet.

[0034] Furthermore, the filter barrel includes a barrel body and a connecting plate, and the connecting plate is connected to the barrel body;

[0035] The connecting plate is detachably connected to the upper end cover;

[0036] The barrel body is located in the box body.

[0037] Furthermore, the barrel body is provided with a plurality of filter holes, and the filter holes are distributed on the side wall and / or the bottom wall of the barrel body;

[0038] The liquid inlet is provided on the side wall of the barrel body, and is located above the filter hole;

[0039] The top end surface of the barrel body is also provided with an air outlet.

[0040] Furthermore, the connecting plate is an annular plate, which is vertically arranged around the outer side of the top end of the barrel side wall.

[0041] Furthermore, an air guide platform is provided in the barrel body, and the air guide platform is located at the bottom of the barrel body and opposite to the air outlet;

[0042] The air guide platform is in the shape of a cone, gradually shrinking from the bottom to the top.

[0043] Furthermore, the filter barrel further comprises a flow guide, the flow guide comprising an exhaust pipe and a cyclone portion, and the cyclone portion is arranged around the outside of the exhaust pipe;

[0044] The exhaust pipe is in communication with the air outlet;

[0045] The cyclone portion is connected to the liquid inlet.

[0046] Furthermore, the cyclone portion includes a wind shield and a spiral plate;

[0047] One end of the windshield is connected to one side of the liquid inlet, and the other end of the windshield is tangent to the exhaust pipe;

[0048] The spiral plate spirally extends downward from the top end surface of the wind shield to the bottom end surface, the inner side wall of the spiral plate is connected to the exhaust pipe, and the outer side wall of the spiral plate is connected to the inner side wall of the barrel body.

[0049] Furthermore, the exhaust pipe is a cylindrical pipe with an air inlet and an air outlet respectively provided at both ends. The air inlet is located inside the barrel and opposite to the air guide platform.

[0050] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0051] (1) By setting a liquid detector to detect the liquid storage situation in the recovery container, when the liquid in the recovery cavity is greater than or equal to the preset liquid level, the controller controls the motor to stop rotating. On the one hand, it reminds the user to clean up the waste liquid and solid debris in the recovery container in time; on the other hand, when the liquid storage in the recovery container reaches the preset liquid level, the motor stops working to prevent more dust-containing fluid from entering the recovery cavity and causing the liquid storage in the recovery container to exceed the standard and overflow. In addition, the motor stops rotating in time, which can also avoid the waste of electricity of the floor cleaning equipment and avoid unnecessary functional consumption of the motor, making the floor cleaning equipment more energy-saving, emission-reducing, and green and environmentally friendly.

[0052] (2) Multiple liquid detectors are located at different positions, making the detection results more stable and accurate;

[0053] (3) The recovery container is provided with a filter barrel, so that the dust-laden fluid entering the recovery container can be separated into solid and liquid, and the solid debris and waste liquid in the dust-laden fluid entering the recovery container can be stored separately, which not only facilitates the cleaning of the recovery container, but also avoids the breeding of bacteria caused by the mixing of solid debris and waste liquid.

[0054] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be described in the following description, and some advantages will become apparent from the description or be learned through practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The accompanying drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like parts throughout the drawings.

[0056] Figure 1It is a structural block diagram of a floor cleaning device in a specific embodiment;

[0057] Figure 2 Schematic diagram of the structure of the recovery container in a specific embodiment (1);

[0058] Figure 3 Schematic diagram of the structure of the recovery container in a specific embodiment (II);

[0059] Figure 4 is a cross-sectional view of a recovery container in a specific embodiment;

[0060] Figure 5 Schematic diagram of the structure of the filter barrel in a specific embodiment (1);

[0061] Figure 6 Schematic diagram of the structure of the filter barrel in a specific embodiment (II);

[0062] Figure 7 is a cross-sectional view of a filter barrel in a specific embodiment;

[0063] Figure 8 This is a structural diagram of the filter barrel after the flow guide piece is removed in a specific embodiment;

[0064] Figure 9 This is a cross-sectional view of the filter barrel after removing the flow guide member in a specific embodiment;

[0065] Figure 10 Schematic diagram of the structure of the flow guide member in a specific embodiment (I);

[0066] Figure 11 Schematic diagram of the structure of the flow guide member in a specific embodiment (II);

[0067] Figure 12 is a cross-sectional view of a flow guide member in a specific embodiment;

[0068] Figure 13 Schematic diagram of the structure of the upper end cover in a specific embodiment (I);

[0069] Figure 14 is a partial cross-sectional view of a recovery container in a specific embodiment (I);

[0070] Figure 15 FIG2 is a partial cross-sectional view of a recovery container in a specific embodiment;

[0071] Figure 16 FIG3 is a partial cross-sectional view of the recovery container in a specific embodiment.

[0072] Reference numerals:

[0073] 1- Recovery container; 101- Fluid inlet; 102- Channel inlet; 11- Upper end cap; 111- Filter unit; 112- Sealing ring; 113- Assembly ring; 114- Pressing piece; 12- Box; 2- Liquid detector; 21- Detection end; 22- Detection bracket; 3- Controller; 4- Motor; 5- Alarm; 6- Filter barrel; 601- Liquid inlet; 602- Air outlet; 603- Air inlet; 604- -air outlet; 61-barrel body; 611-filter hole; 612-air guide platform; 613-groove; 614-ear groove; 62-connecting plate; 63-flow guide; 631-exhaust pipe; 632-cyclone part; 632a-wind shield; 632b-spiral plate; 633-hanging ear; 634-connecting frame; 7-fluid pipeline; 71-first bend pipe; 72-second bend pipe; 73-longitudinal pipe; 74-transverse pipe; 8-handle. DETAILED DESCRIPTION

[0074] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0075] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the term "connected" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0076] The terms "top," "bottom," "above," "below," and "on" used throughout the description refer to relative positions of components of a device, such as the relative positions of top and bottom substrates within a device. It will be understood that devices are multifunctional regardless of their orientation in space.

[0077] The working surface of the present invention can be a plane or a curved surface, can be inclined, or can be horizontal. For the convenience of description, the embodiment of the present invention is placed on a horizontal surface and used on the horizontal surface, and "high and low" and "up and down" are defined in this way.

[0078] The specific embodiment provides a floor cleaning device, such as Figures 1 to 16 Shown, including:

[0079] A recovery container 1 is provided with a recovery chamber for storing the dust-laden fluid absorbed by the floor cleaning device;

[0080] a liquid detector 2, located in the recovery chamber, for detecting the liquid storage condition in the recovery chamber and generating a corresponding liquid signal according to the liquid storage condition;

[0081] a controller 3 connected to the liquid detector 2 to receive the liquid signal and generate a motor control instruction according to the liquid signal;

[0082] The motor 4 is connected to the controller 3 to receive the motor control instruction;

[0083] When the liquid level in the recovery container 1 is greater than or equal to a preset liquid level, the controller 3 sends a motor stop instruction according to the corresponding liquid signal, and the motor 4 stops rotating.

[0084] It should be noted that the above-mentioned dust-laden fluid includes solid debris (such as hair, debris, etc.), waste liquid and dust-laden airflow, etc. The substances absorbed from the ground into the recovery container by the cleaning components of the floor cleaning equipment (such as floor brushes, roller brushes, etc.) are all included in the dust-laden fluid.

[0085] Compared with the prior art, the floor cleaning equipment of the present invention detects the liquid storage situation in the recovery container by setting a liquid detector 2. When the liquid in the recovery cavity is greater than or equal to the preset liquid level, the controller 3 controls the motor 4 to stop rotating. On the one hand, it reminds the user to clean up the waste liquid and solid debris in the recovery container in time; on the other hand, when the liquid storage in the recovery container reaches the preset liquid level, the motor stops working to prevent more dust-containing fluid from entering the recovery cavity and causing the liquid storage in the recovery container to exceed the standard and overflow. In addition, the timely cessation of the motor can also avoid the waste of electricity of the floor cleaning equipment and avoid unnecessary functional consumption of the motor, making the floor cleaning equipment more energy-saving, emission-reducing, and green and environmentally friendly.

[0086] The above preset liquid level is related to the volume, shape and function of the recovery container. It is usually set when the floor cleaning equipment is produced. When the recovery container is just a simple storage container, the liquid storage volume at the preset liquid level is Q s , the maximum liquid storage capacity of the recovery container is Q max , Q s <Q max , preferably Q max / 2≤Q s ≤4Q max / 5, which can avoid cleaning the recovery container too frequently and avoid the difficulty in operation due to excessive liquid storage in the recovery container; when the recovery container is not just a simple storage container, as in the present embodiment, a filter barrel 6 is also provided in the recovery container 1, which can separate the dust-containing fluid entering the recovery container 1 into solid and liquid. At this time, the preset liquid level is lower than (including flush with) the bottom end surface of the filter barrel 6. Preferably, the preset liquid level is flush with the bottom end surface of the filter barrel 6, which ensures the solid-liquid separation effect of the recovery container 1 while storing as much waste liquid as possible, thereby reducing the number of times the recovery container is cleaned.

[0087] In this embodiment, the liquid detector 2 is a water immersion sensor, and its detection end 21 is flush with the preset liquid level, that is, the detection end 21 is flush with the bottom end face of the filter barrel 6. When the liquid level in the recovery chamber contacts the detection end 21, the water immersion sensor generates a water touch signal and transmits the water touch signal to the controller 3. The controller 3 issues a motor stop command based on the received water touch signal to control the motor 4 to stop rotating.

[0088] In certain embodiments, liquid detector 2 is a liquid level sensor that detects the level of the waste liquid in the recovery chamber in real time and generates a corresponding liquid level signal. Based on the liquid level signal received from liquid detector 2, controller 3 determines the relationship between the real-time liquid level and a preset liquid level. When the real-time liquid level is greater than or equal to the preset liquid level, controller 3 issues a motor stop command to control motor 4 to stop rotation. The detection head of the liquid level sensor is located at the bottom of the recovery chamber.

[0089] Compared to liquid level sensors, using a water sensor simplifies the logic of controller 3 and is more efficient. Furthermore, the sensor only generates a signal when it touches the liquid surface. This saves energy compared to liquid level sensors, which require real-time level measurement, and extends the life of the floor cleaning equipment. Compared to water level sensors, the liquid level sensor's measurement signal is more stable and reliable, making misjudgment virtually impossible.

[0090] In order to improve the stability of water immersion sensor detection, the floor cleaning equipment is provided with multiple water immersion sensors, which are located at different positions of the recovery cavity, and the detection ends 21 of all water immersion sensors are flush with the preset liquid level. When the controller 3 receives water contact signals transmitted by more than or equal to 2 water immersion sensors, it will issue a motor stop command to control the motor 4 to stop rotating.

[0091] The above-mentioned floor cleaning equipment also includes an alarm 5, which is connected to the controller 3. When the controller 3 issues a motor stop command, it sends a warning command to the alarm 5, controlling the alarm 5 to issue an alarm message to remind the user to remove the recovery container 1 in time for cleaning.

[0092] The alarm device 5 can emit one or more alarm information including alarm sound, alarm light, alarm text or alarm graphic, wherein the alarm sound (including voice, music or whistle, etc.) is sounded by the sounder, the alarm light is emitted by the lamp (such as LED lamp), and the alarm text or alarm graphic is emitted by the display screen, so the alarm device 5 can be one or a combination of sounders, lamps and display screens.

[0093] The recovery container 1 is provided with a fluid inlet 101 communicating with the recovery chamber, so as to allow the dust-laden fluid to enter the recovery chamber.

[0094] The above-mentioned floor cleaning equipment also includes a cleaning component (such as a floor brush, a roller brush, a rag, etc.), which is connected to the fluid inlet 101. The dust-containing fluid absorbed from the floor by the cleaning component enters the recovery container 1 through the fluid inlet 101.

[0095] The recovery container of the present invention is provided with a filter barrel 6, which enables solid-liquid separation of the dust-laden fluid entering the recovery container. Specifically, solid debris in the dust-laden fluid is stored in the filter barrel 6, while the liquid in the dust-laden fluid is filtered by the filter barrel 6 and stored in the liquid storage space between the recovery chamber and the filter barrel 6. This separate storage of solid debris and waste liquid in the dust-laden fluid entering the recovery container not only facilitates cleaning of the recovery container but also prevents bacterial growth caused by the mixing of solid debris and waste liquid. Specifically, the filter barrel 6 is installed in the recovery chamber and is provided with a liquid inlet 601, through which the dust-laden fluid enters the filter barrel 6.

[0096] The recovery container 1 is further provided with a fluid conduit 7 , one end of which is connected to the fluid inlet 101 , and the other end of which is connected to the liquid inlet 601 , so as to guide the dust-laden fluid into the filter barrel 6 .

[0097] The recovery container also includes an upper end cover 11 and a box body 12. The upper end cover 11 is located above the box body 12, and the upper end cover 11 and the box body 12 jointly limit the recovery cavity. Specifically, the upper end cover 11 is covered on the box body 12, the fluid inlet 101 is opened on the box body 12, the fluid pipeline 7 is installed in the box body 12, a part of the filter barrel 6 is connected to the upper end cover 11, and the remaining part of the filter barrel 6 is located in the box body 12.

[0098] In order to improve the measurement stability of the liquid detector 2, the floor cleaning equipment is also provided with a detection bracket 22. A part of the detection bracket 22 is connected to the upper end cover 11, and the remaining part of the detection bracket 22 is located in the recovery cavity and between the side wall of the box body 12 and the side wall of the filter barrel 6.

[0099] The liquid detector 2 is mounted on a detection bracket 22 , and the detection bracket 22 ensures that the liquid detector 2 is stable and does not move in the recovery chamber.

[0100] In this embodiment, the bottom end surface of the detection bracket 22 is flush with the bottom end surface of the filter barrel 6, and the detection end 21 is located at the bottom of the detection bracket 22 and is flush with its bottom end surface.

[0101] In order to prevent the liquid from accidentally splashing to the detection end 21 when the liquid has not reached the preset liquid level during the solid-liquid separation process of the filter barrel 1, thereby triggering the water immersion sensor 2 to generate a water contact signal, so that the controller 3 controls the motor 4 to stop, a detection window (not shown in the accompanying drawings) is opened at the bottom of the detection bracket 22. The remaining part of the detection bracket 22 except the detection window is closed and wrapped around the outside of the water immersion sensor 2. The detection end 21 corresponds to the detection window. The detection window faces the side wall of the box body 5 and faces away from the filter barrel 6 to prevent the liquid in the filter barrel 6 from splashing to the detection window and contacting the detection end 21.

[0102] It should be noted that the bottom end surfaces of the detection window, the detection end 21 and the filter barrel 6 are flush, and the flush end surfaces are the preset liquid levels.

[0103] In this embodiment, two detection brackets 22 and two liquid detectors 2 are provided, and the two detection windows are both away from the filter barrel 6. The two detection brackets 22 are relatively arranged in the gap between the side wall of the box body 12 and the side wall of the filter barrel 6.

[0104] The filter barrel 6 includes a barrel body 61 and a connecting plate 62 . The connecting plate 62 is connected to the barrel body 61 , and the connecting plate 62 is detachably connected to the upper end cover 11 (such as by snap-fitting, tight fitting, etc.). The barrel body 61 is located in the box body 12 .

[0105] The barrel body 61 is provided with a plurality of filter holes 611 , which are distributed on the side wall and / or the bottom wall of the barrel body 61 , so that waste liquid in the dust-laden fluid entering the barrel body 61 can flow out of the barrel body 61 through the filter holes 611 .

[0106] The barrel body 61 is provided with the liquid inlet 601 so that the dust-laden fluid can enter the barrel body 61 through the liquid inlet 601 ; and the liquid inlet 601 is located above the filter holes 611 to ensure that all the filter holes 611 can filter solid debris.

[0107] The barrel 61 is also provided with an air outlet 602 for allowing the gas in the dust-laden fluid to be discharged from the barrel 61. Furthermore, the air outlet 602 is located at the top end surface of the barrel 61 to prevent solid debris in the barrel 61 from blocking the discharge of the dust-laden airflow.

[0108] In this embodiment, the top of the barrel body 61 is open, that is, the mouth wall of the air outlet 602 is flush with the inner wall of the barrel body 61, and the liquid inlet 601 is located on the side wall of the barrel body 61, and the liquid inlet 601 is located at a position slightly above the side wall of the barrel body 61 to ensure that the barrel body 61 has a larger volume for storing solid debris.

[0109] In this embodiment, the filter holes 611 are formed on the sidewalls and bottom wall of the barrel body 61, and all of the filter holes 611 are located below the liquid inlet 601. Specifically, the filter holes 611 on the sidewalls are evenly distributed slightly below the sidewalls of the barrel body 61. Preferably, the filter holes 611 are evenly distributed between the middle and bottom of the sidewalls of the barrel body 61. The positions of the filter holes 611 are arranged in this manner so that waste liquid in the dust-laden fluid entering the barrel body 61 can be expelled from the barrel body 61 as quickly as possible under the action of gravity, while ensuring that the barrel body 61 has sufficient strength.

[0110] The shapes of all filter holes 611 can be the same or different, and the sizes of filter holes 611 can be the same or different. The manufacturer can design the shape and size of the filter holes 611 according to the shape and size of the filter barrel and the environment in which the filter barrel is used. Preferably, all filter holes 611 have the same shape and size so that the filter barrel 6 has a stable filtering effect. The filter holes 611 are circular holes. Since holes of the same area are opened on the same surface, circular holes are the most numerous. The diameter of the filter hole 611 is d, 2mm≤d≤5mm. While ensuring that solid impurities are filtered out as much as possible, it ensures that the waste liquid has a faster seepage rate. In this embodiment, d=3mm.

[0111] In this embodiment, the barrel body 61 is in the shape of a cylindrical barrel to facilitate cleaning and installation of the filter barrel.

[0112] The connecting plate 62 is connected to the side wall of the barrel body 61 and is located above the liquid inlet 601, so that the filter barrel can be easily assembled without affecting the introduction of dust-laden fluid.

[0113] Specifically, the connecting plate 62 is vertically connected to the side wall of the barrel body 61 so that the barrel body 61 is vertically arranged in the recovery chamber, thereby improving the filtering effect of the filter barrel. The connecting plate 62 is supported by the upper end cover 11 upward and is supported by the barrel body 61 and the gravity of the dust-containing fluid in the barrel body downward. The two forces are easily balanced, so that the filter barrel 6 is stably balanced in the recovery container and has a stable filtering effect. The connecting plate 62 is subjected to balanced force, so that the connection between it and the barrel body 61 is firm and reliable.

[0114] In this embodiment, the connecting plate 62 is an annular plate, which is vertically arranged around the top of the side wall of the barrel body 61, that is, the connecting plate 62 is arranged around the outside of the air outlet 602. In some embodiments, there are multiple connecting plates 62, which are vertically arranged around the outside of the side wall of the barrel body 61.

[0115] To ensure that the dust-laden airflow in the barrel body 61 is discharged as quickly as possible, an air guide platform 612 is provided in the barrel body 61. The air guide platform 612 is located at the bottom of the barrel body 61 and is opposite to the air outlet 602 to guide the dust-laden airflow to the air outlet 602 as quickly as possible.

[0116] Specifically, the bottom of the air guide platform 612 is connected to the bottom wall of the barrel body 61 , a gap is provided between the side wall of the air guide platform 612 and the side wall of the barrel body 61 , and the filter hole 611 of the bottom wall of the barrel body 61 is surrounded by the outside of the bottom of the air guide platform 612 .

[0117] In order to make the air guide platform 612 have a better guiding effect, the air guide platform 612 is in the shape of a cone, and gradually shrinks from the bottom to the top, that is, the side wall of the air guide platform 612 gradually tilts inward from bottom to top.

[0118] In this embodiment, the air guide platform 612 is shaped like a truncated cone, with the top end radius being smaller than the bottom end radius. The central axis of the air guide platform 612 is collinear with the central axis of the barrel body 61, i.e., the air guide platform 612 is located at the bottom center of the barrel body 61. Guided by the air guide platform 612, the dust-laden airflow within the barrel body 61 spirals upward toward the air outlet 602, and then exits the filter barrel 6 through the air outlet 602.

[0119] To reduce the weight of the barrel body 61, in some embodiments, a cavity is provided within the air guide platform 612, the walls of which form a tapered platform within the barrel body 61. In this embodiment, a groove 613 is provided on the lower end surface of the bottom wall of the barrel body 61, corresponding to the air guide platform 612. The groove 613 mates with the air guide platform 612, minimizing the weight of the air guide platform 612 while not affecting the guiding function of the air guide platform 612, thereby reducing the weight of the barrel body 61. The groove 613 is connected to the recovery chamber to enhance the liquid storage performance of the recovery container.

[0120] To improve the filtering effect of the barrel 61 and prevent the dust-laden airflow from forming turbulent flow within the barrel 61 and affecting the filtration of the dust-laden fluid, the filter barrel 6 also includes a flow guide 63. The flow guide 63 includes an exhaust pipe 631 and a cyclone portion 632. The cyclone portion 632 is arranged around the outside of the exhaust pipe 631. The exhaust pipe 631 is connected to the air outlet 602, and the cyclone portion 632 is connected to the liquid inlet 601. The dust-laden fluid enters the filter barrel 6 through the liquid inlet 601. Under the guidance of the cyclone portion 632 and the exhaust pipe 631, the waste liquid and solid debris quickly fall to the bottom of the barrel 61 under the action of centrifugal force and gravity. The dust-laden airflow forms a cyclone within the barrel 61, and is then guided by the air guide platform 612 to converge at the center of the barrel 61 and discharged from the exhaust pipe 631 through the air outlet 602.

[0121] The cyclone portion 632 includes a wind shield 632a and a spiral plate 632b, one end of the wind shield 632a is connected to one side of the liquid inlet 601, the other end of the wind shield 632a is tangent to the exhaust pipe 631, one end of the spiral plate 632b is connected to the top end face of the wind shield 632a, and the other end of the spiral plate 632b is connected to the bottom end face of the wind shield 632a, that is, the spiral plate 632b spirally extends downward from the top end face of the wind shield 632a to the bottom end face, the inner side wall of the spiral plate 632b is connected to the exhaust pipe 631, and the outer side wall of the spiral plate 632b is connected to the inner side wall of the barrel body 61.

[0122] The windshield 632a is opposite to the liquid inlet 601, and the projection of the windshield 632a toward the liquid inlet 601 can completely cover the liquid inlet 601. The angle α between the windshield 632a and the liquid inlet 601 is less than 90°, so that the dust-laden fluid entering from the liquid inlet 601 is first blocked by the windshield 632a, eliminating the inertia of most of the waste liquid and solid debris, so that these waste liquid and solid debris fall as quickly as possible under the action of gravity, and the dust-laden airflow is Under the guidance of the air pipe 631, a spiral downward cyclone is formed in the barrel body 61, and then under the guidance of the air guide platform 612 at the bottom of the barrel body 61, the cyclone spirals upward and converges to the center and is guided out of the filter barrel 6 by the exhaust pipe 631. Except for most of the waste liquid and solid debris that fall after being blocked by the wind shield 632a, the remaining small part of the waste liquid and solid debris is carried by the dust-laden airflow to perform spiral motion. This part of the waste liquid and solid debris finally falls to the bottom of the barrel body 61 under the action of the centrifugal force of the cyclone and its own gravity.

[0123] In order to ensure that the wind shield 632a has a good blocking and guiding effect without affecting the dust-laden fluid from entering the barrel body 61, 30°≤α≤70°. In this embodiment, α=50°.

[0124] In this embodiment, the wind shield 632a is a rectangular plate, the liquid inlet 601 is similar to a rectangle (it is a rectangle when the side wall of the barrel body 61 is flattened), the height of the wind shield 632a (the distance between the upper and lower end faces) is equal to the height of the liquid inlet 601, and the width of the spiral plate 632b is the same as the width of the wind shield 632a (the distance between the left and right end faces, the left end face is connected to the liquid inlet 601, and the right end face is connected to the exhaust pipe 631).

[0125] The exhaust pipe 631 is a cylindrical tube with an air inlet 603 and an air outlet 604 at both ends. A fluid channel for air flow is provided between the air inlet 603 and the air outlet 604. The air inlet 603 is located inside the barrel body 61 and is opposite to the air guide platform 612. The air outlet 604 is connected to the air outlet 602, so that all the dust-laden airflow entering the exhaust pipe 631 is guided out of the filter barrel 6 through the air outlet 602.

[0126] It should be noted that the lower end of the exhaust pipe 631 (the end with the air inlet 603 ) is opposite to the air guide platform 612 and has a certain distance therebetween, so that the air flow can be smoothly introduced into the exhaust pipe 631 .

[0127] The cyclone portion 632 is sealed to the side wall of the barrel body 61 to ensure that the airflow in the barrel body 61 can only be discharged through the exhaust pipe 631 .

[0128] The guide member 63 is detachably mounted in the barrel body 61 to clean impurities in the barrel body 61. In this embodiment, the guide member 63 is detachably mounted on the top of the barrel body 61, the cyclone portion 632 is located in the barrel body 61 and is in sealing contact with the side wall of the barrel body 61, and the exhaust pipe 631 is also located in the barrel body 61.

[0129] To enhance the connection strength between the guide member 63 and the barrel body 61, hooks 633 are provided on both sides of the guide member 63. The top end surface of the side wall of the barrel body 61 is provided with ear grooves 614 that fit into the hooks 633. The hooks 633 are snapped into the ear grooves 614 to achieve a detachable connection between the guide member 63 and the barrel body 61. In this embodiment, the hooks 633 are located above the cyclone portion 632.

[0130] The guide member 63 is also provided with a connecting frame 634, which is located above the cyclone part 632 and the exhaust pipe 631, and is surrounded by the outside of the air outlet 604 so that the dust-laden airflow guided from the air outlet 604 can all enter the connecting frame 634. The connecting frame 634 is used to guide the dust-laden airflow and connect with other components.

[0131] The bottom end surface of the connection frame 634 is sealed with the cyclone portion 632 and the top of the exhaust pipe 631 to prevent the dust-laden airflow from leaking out.

[0132] In this embodiment, the connection frame 634 is a rectangular frame.

[0133] The connecting plate 62 is detachably connected to the bottom of the upper end cover 11 to facilitate installation, disassembly, cleaning and maintenance of the filter barrel 6.

[0134] The upper end cover 11 is provided with an exhaust channel, which is provided with a channel inlet 102 and a channel outlet. The channel inlet 102 is connected to the air outlet 602. The dust-laden airflow discharged from the filter barrel 6 from the air outlet 602 is discharged from the upper end cover 11 through the exhaust channel.

[0135] Specifically, the channel inlet 102 is located at the bottom end surface of the upper end cover 11, and the channel outlet is located at the top end surface of the upper end cover 11. The channel inlet 102 is opposite to and connected to the connecting frame 634, so that all the dust-laden airflow in the filter barrel 6 is introduced into the exhaust channel.

[0136] A filter unit 111 is provided in the exhaust passage, and the filter unit 111 is sealed to the side wall of the exhaust passage, so that the dust-laden airflow entering the exhaust passage is removed by the filter unit 111 for dust removal and dehumidification before being discharged from the recovery container.

[0137] Filter unit 111 corresponds to outlet 602 and filters the dust-laden airflow exiting outlet 602 before discharging the filtered air into a recovery container. Specifically, filter unit 111 includes a HEPA filter and a dehumidifier to remove dust and water from the dust-laden air, ensuring that the airflow exiting the recovery container is dry and clean, thereby preventing corrosion of downstream components of the recovery container.

[0138] In this embodiment, a detachable cover of the filter portion 111 is provided at the channel outlet for easy installation, disassembly, cleaning and maintenance.

[0139] The upper end cover 11 and the box body 12 are detachably connected, and a sealing ring 112 is provided at the connection. The sealing ring 112 can not only enhance the connection strength between the upper end cover 11 and the box body 12, but also realize a sealed connection between the upper end cover 11 and the box body 12, so that the airflow entering the recovery chamber can only be discharged through the exhaust channel.

[0140] In this embodiment, an assembly ring 113 is provided at the bottom of the upper end cover 11, and a sealing ring 112 is sleeved on the outside of the assembly ring 113. The shape of the assembly ring 113 is adapted to the shape of the box body 12. The assembly ring 113 is sleeved with the sealing ring 112 and can be inserted into the box body 12. The upper end cover 11 is interference-connected (or tightly-fitted) with the box body 12 through the sealing ring 112, thereby realizing a sealed connection between the upper end cover 11 and the side wall of the box body 12.

[0141] Furthermore, the outer wall of the assembly ring 113 is provided with a thread, and the inner wall of the sealing ring 112 is provided with a thread adapted to the thread of the assembly ring 113 to enhance the connection performance between the upper end cover 11 and the box body 12. In addition, the outer wall of the sealing ring 112 is provided with a thread to facilitate the disassembly of the upper end cover 11 and the box body 12.

[0142] It should be noted that the assembly ring 113 is arranged around the outside of the connecting plate 62 to prevent the assembly ring 113 from interfering with the assembly of the filter barrel 6.

[0143] The upper end cover 11 further comprises a pressing member 114, and the recovery container is detachably mounted in the floor cleaning device via the pressing member 114. Specifically, a button of the pressing member 114 is located on the side wall of the upper end cover 11.

[0144] The connecting plate 62 is connected to the upper end cover 11, and the barrel body 61 is located in the box body 12. A gap is provided between the side wall of the barrel body 61 and the side wall of the box body 12, and a gap is provided between the bottom wall of the barrel body 61 and the bottom wall of the box body 12 to ensure the solid-liquid separation effect in the recovery container, and the gap between the side wall and the bottom wall is sufficient for the fluid pipe 7 to pass through so as not to affect the circulation of dust-containing fluid in the fluid pipe 7.

[0145] The ratio of the height of the barrel 61 to the height of the box 12 is greater than or equal to 1:2 and less than or equal to 4:5, so as to ensure that the recovery container has a good solid-liquid separation effect and has sufficient volume to store waste liquid. In this embodiment, the ratio of the height of the barrel 61 to the height of the box 12 is equal to 3:4.

[0146] The fluid conduit 7 is located in the box body 12 , and one end of the fluid conduit 7 is connected to the fluid inlet 101 , and the other end is connected to the liquid inlet 601 , so as to guide all the dust-laden fluid entering the recovery container into the barrel body 61 .

[0147] The wall of the fluid conduit 7 is as close as possible to the wall of the recovery cavity (i.e., the inner wall of the box body 12) to avoid the fluid conduit 7 crisscrossing in the recovery cavity, occupying the volume of the recovery cavity, and then compressing the volume of the barrel body 1 and the liquid storage space.

[0148] In this embodiment, the fluid inlet 101 is located on the bottom wall of the box body 12, and the fluid pipeline 7 includes a first bend pipe 71, a second bend pipe 72, a longitudinal pipe 73 and a transverse pipe 74 connected in sequence. The first bend pipe 71 is connected to the fluid inlet 101. After two bending transitions of the first bend pipe 71 and the second bend pipe 72, the longitudinal pipe 73 can be close to the side wall of the recovery cavity. The transverse pipe 74 is vertically connected to the longitudinal pipe 73, and the outlet end of the transverse pipe 74 is connected to the liquid inlet 601.

[0149] The first curved tube 71 and the second curved tube 72 are connected together to form an "S" shape, so that the longitudinal tube 73 is closely attached to the side wall of the recovery chamber (i.e., the inner wall of the housing 12). Specifically, the first curved tube 71 and the second curved tube 72 are both curved tubes with a curvature. The first curved tube 71 is curved toward the adjacent recovery chamber wall, while the second curved tube 72 is curved toward the interior of the recovery chamber.

[0150] In some embodiments, the first bend 71 and the second bend 72 can be combined into a curved tube with two curvatures, as long as the longitudinal tube 73 can be close to the side wall of the recovery cavity. However, the production cost of this curved tube is high and the assembly is difficult.

[0151] The first bend 71 and the second bend 72 of the fluid pipeline 7 of the present invention make the longitudinal tube 73 close to the side wall of the recovery chamber, which can effectively save the volume of the recovery chamber, avoid the criss-crossing of the pipelines in the recovery chamber, and facilitate the cleaning of the recovery container; in addition, the segmented design of the fluid pipeline 7 also makes its assembly more convenient and reduces production costs; furthermore, the first bend 71 and the second bend 72 make a part of the fluid pipeline 7 a curved pipeline, which can slow down the flow rate of the dust-laden fluid in the fluid pipeline 7, and thus prolong the flow time of the dust-laden fluid in the fluid pipeline 7, so as to increase the filtering time of the filter barrel for the dust-laden fluid entering the barrel body 1, and avoid the dust-laden fluid from pouring into the barrel body 1 in a short period of time, causing the filtering pressure of the filter barrel to be too high, so as to ensure that the filter barrel has a stable and good filtering effect.

[0152] In this embodiment, the upper end cover 11 is flush with the outer side wall of the box body 12 to facilitate the transfer of the recovery container.

[0153] In order to facilitate the removal and placement of the mobile recycling container, the recycling container further includes a handle 8. Specifically, the handle 8 is located on the outside of the box body 12, and the handle 8 and the button of the pressing member 114 are located on the same side of the recycling container.

[0154] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A floor cleaning device, characterized in that: include: A recovery container (1) is provided with a recovery chamber for storing the dust-laden fluid absorbed by the floor cleaning device; A liquid detector (2) is located in the recovery chamber to detect the liquid storage condition in the recovery chamber and generate a corresponding liquid signal according to the liquid storage condition; A controller (3) is connected to the liquid detector (2) to receive the liquid signal and generate a motor control instruction according to the liquid level signal; A motor (4) connected to the controller (3) to receive a motor control instruction; When the liquid level in the recovery container (1) is greater than or equal to a preset liquid level, the controller (3) sends a motor stop instruction according to a corresponding liquid signal, and the motor (4) stops rotating; The preset liquid level is lower than or equal to the bottom end surface of the filter barrel (6) of the recovery container (1); The recovery container (1) is provided with a filter barrel (6), the filter barrel (6) is installed in the recovery chamber and is provided with a liquid inlet (601), and the dust-laden fluid enters the filter barrel (6) through the liquid inlet (601); The filter barrel (6) comprises a barrel body (61) and a connecting plate (62), wherein the connecting plate (62) is connected to the barrel body (61), and the filter barrel is detachably connected to the recovery container (1) via the connecting plate (62); The barrel body (61) is provided with a plurality of filter holes (611), and the filter holes (611) are distributed on the side wall and / or the bottom wall of the barrel body (61), so that waste liquid in the dust-laden fluid entering the barrel body (61) can flow out of the barrel body (61) through the filter holes (611); the liquid inlet (601) is located above the filter holes (611); the barrel body (61) is also provided with an air outlet (602), so that gas in the dust-laden fluid can be discharged from the barrel body (61) through the air outlet (602); The filter barrel (6) further comprises a flow guide (63) which is detachably mounted in the barrel body (61). The flow guide (63) comprises an exhaust pipe (631) and a cyclone portion (632). The cyclone portion (632) is arranged outside the exhaust pipe (631). The exhaust pipe (631) is in communication with the air outlet (602). The cyclone portion (632) is connected to the liquid inlet (601). The cyclone portion (632) comprises a windshield (632a) and a spiral plate (632b). One end of the windshield (632a) is connected to one side of the liquid inlet (601), and the other end of the windshield (632a) is connected to the liquid inlet (601). The exhaust pipe (631) is tangent to the exhaust pipe (631), one end of the spiral plate (632b) is connected to the top end face of the wind shield (632a), and the other end of the spiral plate (632b) is connected to the bottom end face of the wind shield (632a), and the spiral plate (632b) spirally extends downward from the top end face of the wind shield (632a) to the bottom end face; the wind shield (632a) is opposite to the liquid inlet (601), and the projection of the wind shield (632a) toward the liquid inlet (601) can completely cover the liquid inlet (601), and the angle α between the wind shield (632a) and the liquid inlet (601) is less than 90°.

2. The floor cleaning device according to claim 1, characterized in that: The liquid detector (2) is a liquid level sensor, and the detection head of the liquid level sensor is located at the bottom of the recovery chamber; The liquid level sensor detects the liquid level signal of the liquid in the recovery chamber in real time and transmits the liquid level signal to the controller (3). The controller (3) determines the relationship between the real-time liquid level and the preset liquid level based on the received liquid level signal. When the real-time liquid level is greater than or equal to the preset liquid level, the controller (3) issues a motor stop instruction to control the motor (4) to stop rotating.

3. The floor cleaning device according to claim 1, characterized in that: The liquid detector (2) is a water immersion sensor, and the detection end (21) of the water immersion sensor is flush with the preset liquid level; When the liquid level in the recovery chamber contacts the detection end (21), the water immersion sensor generates a water contact signal and transmits the water contact signal to the controller (3). The controller (3) issues a motor stop instruction based on the received water contact signal to control the motor (4) to stop rotating.

4. The floor cleaning device according to claim 3, characterized in that: The floor cleaning device is provided with a plurality of water immersion sensors, which are located at different positions of the recovery chamber; When the controller (3) receives water contact signals transmitted by two or more water sensors, it issues the motor stop instruction.

5. The floor cleaning device according to any one of claims 1 to 4, characterized in that: The floor cleaning device further comprises an alarm (5), which is connected to the controller (3); The controller (3) issues a motor stop instruction and simultaneously issues a warning instruction to the alarm device (5), controlling the alarm device (5) to issue an alarm message; The alarm device (5) can emit one or more alarm information including alarm sound, alarm light, alarm text or alarm graphics.

6. The floor cleaning device according to any one of claims 1 to 4, characterized in that: The recycling container further comprises an upper end cover (11) and a box body (12), wherein the upper end cover (11) is located above the box body (12), and the upper end cover (11) and the box body (12) jointly define the recycling cavity; The bottom of the box (12) is provided with a fluid inlet (101); The recovery container (1) is further provided with a fluid conduit (7), one end of the fluid conduit (7) is in communication with the fluid inlet (101), and the other end of the fluid conduit (7) is in communication with the liquid inlet (601).

7. The floor cleaning device according to claim 6, characterized in that: The fluid pipeline (7) is installed in the box (12); A portion of the filter barrel (6) is connected to the upper end cover (11), and the remaining portion of the filter barrel (6) is located in the box body (12).

8. The floor cleaning device according to claim 7, characterized in that: The floor cleaning device is further provided with a detection bracket (22), a portion of the detection bracket (22) is connected to the upper end cover (11), and the remaining portion of the detection bracket (22) is located in the recovery chamber and between the side wall of the box body (12) and the side wall of the filter barrel (6); The liquid detector (2) is mounted on the detection bracket (22).

9. The floor cleaning device according to claim 7, characterized in that: The fluid pipeline (7) comprises a first curved pipe (71), a second curved pipe (72), a longitudinal pipe (73) and a transverse pipe (74) connected in sequence; The first curved pipe (71) is connected to the fluid inlet (101); The longitudinal tube (73) is in close contact with the side wall of the box (12); The transverse tube (74) is connected to the liquid inlet (601).

10. The floor cleaning device according to claim 7, characterized in that: The connecting plate (62) is detachably connected to the upper end cover (11); The barrel body (61) is located inside the box body (12).

11. The floor cleaning device according to claim 10, characterized in that: The air outlet (602) is provided on the top end surface of the barrel body (61).

12. The floor cleaning device according to claim 11, characterized in that: The connecting plate (62) is an annular plate and is vertically arranged around the outer side of the top end of the side wall of the barrel body (61).

13. The floor cleaning device according to claim 11, characterized in that: An air guide platform (612) is provided in the barrel body (61), and the air guide platform (612) is located at the bottom of the barrel body (61) and opposite to the air outlet (602); The air guide platform (612) is in the shape of a cone, gradually shrinking from the bottom to the top.

14. The floor cleaning device according to claim 13, characterized in that: The exhaust pipe (631) is a cylindrical pipe with an air inlet (603) and an air outlet (604) respectively provided at both ends. The air inlet (603) is located inside the barrel body (61) and is opposite to the air guide platform (612).

Images