Floor cleaning equipment

Abstract

The present application discloses a floor cleaning device, comprising a seat assembly and a body assembly, wherein the body assembly rotates relative to the base assembly between an upright position, a rearwardly tilted use position and a forwardly tilted rotation position, the body assembly carries a recovery box, the device also comprises a suction motor connected to the recovery box fluid, the recovery box comprises: a box body, an exhaust path connected to the suction motor, an exhaust port located in the exhaust path, a float assembly located in the box body, the float assembly comprises a float member moving between a first position away from the exhaust port and a second position blocking the exhaust port, a channel located on the float member, and a gravity ball moving between an upper position and a lower position; the channel has a first channel opening and a second channel opening that are far away from each other; the gravity ball is constructed to be in the upper position only when the body assembly is in the rearwardly tilted use position and the float member is in the second position; the present application achieves the continuity of cleaning operations and improves cleaning efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, and in particular to a floor cleaning equipment. Background Art

[0002] The existing floor cleaning equipment includes a base assembly that moves along the ground and a body assembly that is rotatably connected to the base assembly. During the cleaning process, the body assembly tilts backward relative to the base assembly and is pushed by the operator to move along the ground to clean the ground. The body assembly carries a recovery tank for storing dirty liquid and a suction motor that generates suction force. In order to stop the floor cleaning equipment in time to clean the dirty liquid in the recovery tank when the dirty liquid level in the recovery tank reaches the upper limit, a float member affected by the dirty liquid level and an exhaust port connected to the air inlet of the suction motor are provided in the recovery tank. The float member in this type of floor cleaning equipment is hinged at the exhaust port. When the machine When the body assembly tilts backward, the float part drops downward under the action of gravity to move away from the exhaust port until the dirty liquid level reaches the upper limit, and the float part is blocked at the exhaust port under the buoyancy of the dirty liquid; however, the dirty liquid in the recovery tank is not full, and when the body assembly tilts forward relative to the base assembly to make the floor cleaning equipment rotate and turn around, the float part will also block the exhaust port under the action of gravity, causing the suction motor to stop. When the floor cleaning equipment has completed its rotation and the body assembly tilts backward relative to the base assembly to continue the cleaning operation, the suction motor needs to be restarted. Frequent shutdowns of the suction motor are likely to increase the damage rate of the equipment and reduce the cleaning efficiency of the equipment. Summary of the Invention

[0003] In order to solve the problem in the prior art that the suction motor frequently stops due to the rotation of the fuselage component, the purpose of this application is to provide a floor cleaning device.

[0004] To achieve the above-mentioned object, the present application adopts the following technical solution: a floor cleaning device, comprising a base assembly movable along the ground and a body assembly rotatably connected to the base assembly, wherein the body assembly can be rotated relative to the base assembly between an upright position, a rearwardly tilted use position, and a forwardly tilted rotation position under user manipulation, wherein the body assembly carries a recovery box, the base assembly includes a brush plate and a suction port in fluid communication with the recovery box, the body assembly and / or the base assembly is provided with a suction motor in fluid communication with the recovery box, and the recovery box includes:

[0005] A box body is configured to receive a fluid containing dirty liquid and air and store the dirty liquid, wherein the box body has an inner cavity for storing the dirty liquid;

[0006] an exhaust path for guiding the air in the inner cavity toward the suction motor;

[0007] an exhaust port located in the exhaust path; and

[0008] a float assembly disposed in the inner cavity and comprising a float member, a channel located on the float member, and a gravity ball constrained in the float member and movable between an upper position and a lower position under the action of gravity;

[0009] The channel has a first channel opening and a second channel opening that are far away from each other, the first channel opening is connected to the inner cavity, and the second channel opening faces the exhaust port;

[0010] The gravity ball blocks the first channel opening when in the upper position and is away from the first channel opening when in the lower position;

[0011] The float member is configured to move between a first position away from the exhaust port and a second position blocking the exhaust port in response to the level of the waste liquid in the inner cavity; when the float member is in the first position, the second channel opening is away from the exhaust port, and air in the inner cavity can flow directly to the exhaust port; when the float member is in the second position, the second channel opening is connected to the exhaust port, and air in the inner cavity can only flow to the exhaust port through the channel;

[0012] The gravity ball is configured to be in the upper position only when the fuselage assembly is in the rearwardly tilted use position and the float member is in the second position.

[0013] In the above technical solution, it is further preferred that the recovery box includes an exhaust duct arranged in the box body, the exhaust duct defines the exhaust path, and the exhaust port is formed at one end of the exhaust duct in the inner cavity.

[0014] In the above technical solution, it is further preferred that the float component includes a rotating frame hinged to one end of the exhaust pipe and a float component connected below the rotating frame, the channel is formed on the rotating frame and has a floating ball space for the gravity ball to move, the floating ball space is connected to the first channel opening and is located on the side of the first channel opening away from the second channel opening.

[0015] In the above technical solution, it is further preferred that the diameter of the first channel opening is smaller than the diameter of the gravity ball.

[0016] In the above technical solution, it is further preferred that the axis of the first channel opening is perpendicular to the axis of the second channel opening, and the second channel opening is located above the first channel opening.

[0017] In the above technical solution, it is further preferred that a filter is provided in the exhaust path.

[0018] In the above technical solution, it is further preferred that it further includes: a liquid supply box and a rechargeable battery pack, and the suction motor is electrically connected to the rechargeable battery pack.

[0019] In the above technical solution, it is further preferred that the base assembly includes a liquid outlet connected to the fluid of the liquid supply box.

[0020] Compared with the prior art, this application achieves the following beneficial effects:

[0021] The float component of the floor cleaning device of the present application cuts off the fluid communication between the recovery tank and the suction motor only when the body assembly is in the use position and the dirty liquid level in the recovery tank reaches the upper limit. When the dirty liquid level in the recovery tank is not full and the body assembly is in the forward-tilted rotation position, the suction motor and the recovery tank still maintain fluid communication to continue the operation of sucking the dirty liquid. The structure is simple, ensuring that when the dirty liquid level in the recovery tank does not reach the upper limit, the floor cleaning device can perform cleaning operations in the use position, upright position and rotation position, thereby achieving continuity of cleaning operations and improving cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a floor cleaning device provided by an embodiment of the present application, in which a body assembly is in an upright position relative to a base assembly;

[0023] Figure 2 for Figure 1 Schematic diagram of the internal structure of the recycling bin;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of the fuselage assembly in the use position relative to the base assembly;

[0025] Figure 4 for Figure 3 A structural diagram of a float assembly of a recovery box in which the float member is located in a first position and the gravity ball is in a lower position;

[0026] Figure 5 for Figure 3 A structural diagram of the float component of the float assembly of the recovery box in the second position and the gravity ball in the upper position;

[0027] Figure 6 for Figure 1 A schematic structural diagram of the fuselage assembly in a rotated position relative to the base assembly;

[0028] Figure 7 for Figure 6 A structural diagram of the float component of the float assembly of the recovery box in the recovery box is located in the second position and the gravity ball is in the lower position.

[0029] Among them: 100, floor cleaning equipment; 10, base assembly; 6, squeegee; 7, brush plate; 20, body assembly; 30, recovery box; 1, box body; 11, inner cavity; 2, exhaust port; 3, float assembly; 31, float component; 311, rotating frame; 312, float member; 32, channel; 320, float space; 321, first channel opening; 322, second channel opening; 33, gravity ball; 4, filter element; 5, exhaust pipe; 50, liquid supply tank; 60, rechargeable battery pack. DETAILED DESCRIPTION

[0030] In order to describe the technical content, structural features, achieved purposes and effects of the application in detail, the technical solutions in the embodiments of the application will be described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but are not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0031] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0032] The terms "upper", "lower", "front" and "back" in this application are as shown in the attached Figure 1 Top, bottom, front and back shown.

[0033] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0034] The embodiment of the present application provides a floor cleaning device for cleaning the floor; Figure 1As shown, the floor cleaning device 100 includes a base assembly 10 that can move back and forth along the floor and a body assembly 20 that is rotatably connected to the base assembly 10. The body assembly 20 can be in an upright position relative to the base assembly 10 under the manipulation of the user (see FIG. Figure 1 ), backward tilted use position (see Figure 3 ) and a forward tilted swivel position (see Figure 6 ) between the two.

[0035] like Figure 1 As shown, the body assembly 20 carries a recovery tank 30 and a liquid supply tank 50, the recovery tank 30 is used to receive and store dirty liquid, and the liquid supply tank 50 is used to store cleaning liquid; the body assembly 20 and / or the base assembly 10 is provided with a suction motor (not shown in the figure) that is fluidically connected to the recovery tank 30; the floor cleaning device 100 also includes a rechargeable battery pack 60 for providing electrical energy to various energy-consuming components of the floor cleaning device, and the suction motor is electrically connected to the rechargeable battery pack 60.

[0036] like Figure 2 As shown, the recovery box 30 includes a box body 1, an exhaust port 2 and a float assembly 3. The box body 1 is detachably connected to the fuselage assembly 20. The box body 1 is configured to receive a fluid containing dirty liquid and air and retain the dirty liquid for storage. The interior of the box body 1 has an inner cavity 11 for storing the dirty liquid; the recovery box 30 also includes an exhaust path, which is used to guide the air in the inner cavity 11 to the suction motor; the exhaust port 2 is located in the exhaust path, which is used to receive air entering the exhaust path under the suction action of the suction motor. A filter element 4 is also provided in the exhaust path, which is used to filter the air entering the exhaust path under the action of the suction motor.

[0037] In the embodiment of the present application, the recovery box 30 includes an exhaust duct 5 arranged in the box body 1 , the exhaust duct 5 defines the exhaust path, and the exhaust port 2 is formed at one end of the exhaust duct 5 in the inner cavity 11 .

[0038] The float assembly 3 is arranged in the inner cavity 11. The float assembly 3 includes a float member 31, a channel 32 located on the float member 31, and a gravity ball 33 constrained in the float member 31. The channel 32 has a first channel opening 321 and a second channel opening 322 that are far away from each other. The first channel opening 321 is connected to the inner cavity 11, and the second channel opening 322 is arranged facing the exhaust port 2.

[0039] The gravity ball 33 is confined in the channel 32 and can move between an upper position and a lower position under the action of gravity. When the gravity ball 33 is in the upper position, the gravity ball 33 blocks the first channel opening 321; when the gravity ball 33 is in the lower position, the gravity ball 33 is away from the first channel opening 321; the diameter of the first channel opening 321 is smaller than the diameter of the gravity ball 33, so that the gravity ball 33 completely blocks the first channel opening 321.

[0040] like Figure 2 、 4 As shown in Figures 5 and 7, the float member 31 includes a rotating frame 311 hinged at one end of the exhaust pipe 5 and a float member 312 connected to the bottom of the rotating frame 311. The channel 32 is formed on the rotating frame 311 and has a float space 320 for the gravity ball 33 to move. The float space 320 is connected to the first channel opening 321 and is located on a side away from the first channel opening 321 and away from the second channel opening 322. The gravity ball 33 is accommodated in the float space 320 and moves between an upper position and a lower position. When the gravity ball 33 blocks the first channel opening 321, the fluid communication between the float space 320 and the second channel opening 322 is cut off. Figure 5 As shown, when the gravity ball 33 is in the upper position, the first channel opening 321 is located at the bottom of the float space 320, and the gravity ball 33 blocks the first channel opening 321 under the action of gravity, as shown in FIG. Figure 4 As shown, when the gravity ball 33 is located at the lower position, the first channel opening 321 is located at the top of the float space 320 , and the gravity ball 33 moves away from the first channel opening 321 under the action of gravity.

[0041] The float member 312 drives the rotating frame 311 under the influence of the dirty liquid level in the inner cavity 11, so that the float member 312 moves between a first position away from the exhaust port 2 and a second position blocking the exhaust port 2 under the influence of the dirty liquid level. Figure 4 As shown, when the float member 31 is in the first position, the second channel opening 322 is away from the exhaust port 2; Figure 5 As shown, when the float member 31 is in the second position, the second channel opening 322 is docked with the exhaust port 2 , so that the air in the inner cavity 11 can only flow to the exhaust port 2 through the channel 32 .

[0042] The first channel opening 321 is set toward the front side, and the gravity ball 33 is configured to be in the upper position only when the fuselage assembly 20 is in the rearward tilted use position and the float member 31 is in the second position; when the fuselage assembly 20 is in the use position and the float member 31 is in the second position, the float space 320 is in a state of high front and low back. At this time, the second channel opening 322 is located at the lowest point of the float space 320, and the gravity ball 33 accommodated in the float space 320 moves backward and downward under the action of gravity until it is blocked at the second channel opening 322. The buoyancy of the dirty liquid, the tilt of the fuselage assembly 20 and the suction force of the suction motor keep the gravity ball 33 in the upper position, thereby preventing the inner cavity 11 from being fluidically connected to the exhaust port 2 when the fuselage assembly 20 is in use and the dirty liquid level is at the upper limit position. An axis of the first channel opening 321 is perpendicular to an axis of the second channel opening 322 , and the second channel opening 322 is located above the first channel opening 321 .

[0043] like Figure 1 As shown, the base assembly 10 is provided with a suction port for sucking dirty liquid, a liquid outlet for spraying cleaning liquid, and a brush plate 7 for cleaning the floor with the cleaning liquid. The liquid outlet (not shown in the figure) is in fluid communication with the liquid supply tank 50, and the liquid outlet is arranged toward the floor or the brush plate 7 so as to spray the cleaning liquid in the liquid supply tank 50 onto the floor or the brush plate 7; the brush plate 7 is transmission-connected to a brush motor on the base assembly 10, and rotates under the action of the brush motor to clean the floor with the cleaning liquid provided by the liquid outlet; the brush motor is connected to the rechargeable The battery pack 60 is electrically connected and is provided with power by the rechargeable battery pack 60; the base assembly 10 includes a squeegee 6 arranged on the rear side of the brush disc 7, and multiple suction ports (not shown in the figure) are arranged on the squeegee 6. The suction ports are fluidically connected to the recovery tank 30. The dirty liquid generated by the brush disc 7 scrubbing the floor is sucked into the recovery tank 30 by the suction port under the suction action of the suction motor, and the dirty liquid remains in the inner cavity 11. The air sucked in along with the dirty liquid is transported to the suction motor through the exhaust port 2 and discharged from the floor cleaning device 100 by the suction motor.

[0044] like Figure 1 、 2 As shown, when the body assembly 20 is in an upright position relative to the base assembly 10, the float member 31 is in the first position under the influence of gravity, and the second channel opening 322 is away from the exhaust port 2, so the air in the inner cavity 11 directly enters the exhaust port 2, is filtered by the filter element 4, and is discharged from the floor cleaning device 100 by the suction motor.

[0045] like Figure 3-5As shown, when the body assembly 20 is in a rearward tilted use position relative to the base assembly 10, the dirty liquid level in the inner cavity 11 gradually rises during the cleaning process of the floor cleaning device 100, and the float member 312 pushes the float component 31 to rotate from the first position to the second position under the buoyancy of the dirty liquid. Figure 4 As shown, if the dirty liquid level has not reached the upper limit, the float member 31 is in the first position where the second channel opening 322 is away from the exhaust port 2, and the air in the inner cavity 11 is directly sucked into the exhaust pipe 5 under the action of the suction motor, and is then filtered by the filter element 4 and discharged from the floor cleaning device 100 by the suction motor; Figure 5 As shown, when the liquid level of the sewage reaches the upper limit, the float member 31 moves to the second position under the action of the float member 312, the rotating frame 311 docks with the exhaust pipe 5, and the second channel opening 322 docks with the exhaust port 2. At this time, the inner cavity 11 is connected to the exhaust port 2 only through the channel 32 on the rotating frame 311. The gravity ball 33 moves to the upper position under the action of gravity to block the first channel opening 321, cutting off the fluid communication between the inner cavity 11 and the exhaust port 2. The suction force of the suction motor cannot act on the suction port, and the entry of sewage into the inner cavity 11 is stopped.

[0046] like Figure 6 、 7 As shown, when the fuselage assembly 20 is in a forward-tilted rotation position relative to the base assembly 10, the float member 31 is in the second position under the action of gravity, and the second channel opening 322 is docked with the exhaust port 2. Since the fuselage assembly 20 is tilted forward, the float space 320 is in a state of low front and high back, and the gravity ball 33 is away from the second channel opening 322 under the action of gravity, so that the second channel opening 322 connects the inner cavity 11 and the exhaust port 2 to each other. That is, when the fuselage assembly 20 is in the rotation position, the floor cleaning device 100 can still perform the suction work of the dirty liquid to ensure the continuity of the cleaning work.

[0047] The floor cleaning device 100 of the present application also includes a controller (not shown in the figure) and a sensor (not shown in the figure) connected to the controller signal. The sensor is used to detect the working state of the suction motor. When the float member 31 is in the second position and the gravity ball 33 is in the upper position, the fluid communication between the suction motor and the inner cavity 11 is cut off. When the sensor detects that the suction motor is overloaded, it transmits a shutdown signal to the controller. The controller is configured to control the suction motor to stop after receiving the shutdown signal and transmit an alarm signal to the outside to notify the user to clean the recovery box 30.

[0048] The float member 31 of the floor cleaning device 100 of the present application cuts off the fluid communication between the recovery tank 30 and the suction motor only when the body assembly 20 is in the use position and the dirty liquid level in the recovery tank 30 reaches the upper limit. When the dirty liquid level in the recovery tank 30 is not full and the body assembly 20 is in the forward-tilted rotation position, the suction motor and the recovery tank 30 still maintain fluid communication to continue the operation of sucking the dirty liquid. The structure is simple, ensuring that when the dirty liquid level in the recovery tank 30 does not reach the upper limit, the floor cleaning device 100 can perform cleaning operations in the use position, upright position and rotation position, thereby achieving continuity of cleaning operations and improving cleaning efficiency.

[0049] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. The scope of protection claimed in the present application is defined by the appended claims, the description and their equivalents.

Claims

1. A floor cleaning device, comprising a base assembly movable along the floor and a body assembly rotatably connected to the base assembly, wherein the body assembly can be rotated relative to the base assembly between an upright position, a rearwardly inclined use position, and a forwardly inclined rotation position under user manipulation, wherein the body assembly carries a recovery box, the base assembly includes a brush plate and a suction port in fluid communication with the recovery box, and a suction motor in fluid communication with the recovery box is provided on the body assembly and / or the base assembly, wherein: The recycling box includes: A box body is configured to receive a fluid containing dirty liquid and air and store the dirty liquid, wherein the box body has an inner cavity for storing the dirty liquid; an exhaust path for guiding the air in the inner cavity toward the suction motor; an exhaust port located in the exhaust path; and a float assembly disposed in the inner cavity and comprising a float member, a channel located on the float member, and a gravity ball constrained in the float member and movable between an upper position and a lower position under the action of gravity, the channel having a first channel opening and a second channel opening spaced apart from each other, the first channel opening communicating with the inner cavity, and the second channel opening facing the exhaust port; In which, the gravity ball blocks the first channel opening when in the upper position and is away from the first channel opening when in the lower position, and the float member is configured to be affected by the level of the dirty liquid in the inner cavity and move between a first position away from the exhaust port and a second position blocking the exhaust port; when the float member is in the first position, the second channel opening is away from the exhaust port, and the air in the inner cavity can flow directly to the exhaust port; when the float member is in the second position, the second channel opening is docked with the exhaust port, and the air in the inner cavity can only flow to the exhaust port via the channel; the gravity ball is constructed to be in the upper position only when the fuselage assembly is in the rearward tilted use position and the float member is in the second position.

2. The floor cleaning device according to claim 1, characterized in that: The recovery box includes an exhaust pipe arranged in the box body, the exhaust pipe defines the exhaust path, and the exhaust port is formed at one end of the exhaust pipe in the inner cavity.

3. The floor cleaning device according to claim 2, characterized in that: The float component includes a rotating frame hinged at one end of the exhaust pipe and a float member connected below the rotating frame. The channel is formed on the rotating frame and has a floating ball space for the movement of the gravity ball. The floating ball space is connected to the first channel opening and is located on the side of the first channel opening away from the second channel opening.

4. The floor cleaning device according to claim 3, characterized in that: The diameter of the first channel opening is smaller than the diameter of the gravity ball.

5. The floor cleaning device according to claim 4, characterized in that: The axis center line of the first channel opening is perpendicular to the axis center line of the second channel opening, and the second channel opening is located above the first channel opening.

6. The floor cleaning device according to claim 1, characterized in that: A filter is provided in the exhaust path.

7. The floor cleaning device according to claim 1, characterized in that: Also includes: A liquid supply box and a rechargeable battery pack, wherein the suction motor is electrically connected to the rechargeable battery pack.

8. The floor cleaning device according to claim 1, characterized in that: The base assembly includes a liquid outlet in fluid communication with the liquid supply tank.

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