Dust suction and dirt suction function switching device for scrubber

Abstract

The utility model discloses a dust and dirt suction function switching device for a scrubber, which comprises a scrubber body, a sewage tank and a dust brush component, and further comprises a switching component positioned on the side wall of the sewage tank, the switching assembly comprises a fixing plate located on the side wall of the sewage tank, a driving motor located on the lower portion of the end, facing the sewage tank, of the fixing plate and a switching plate driven by the driving motor to move and transversely slide on the fixing plate, and the dust brush assembly comprises a dust collection channel with the tail end right facing the switching plate. A first fixing opening and a second fixing opening which are matched with the dust collection channel and the sewage tank are formed in the fixing plate, a first moving opening and a second moving opening which are matched with the dust collection channel and the sewage tank are formed in the middle of the switching plate, and the two ends of the switching plate are closed. According to the floor scrubber, the negative pressure of dust collection or dirt collection is increased while independent dust collection or dirt collection is achieved, so that the cleaning efficiency of the floor scrubber body is improved, and different use requirements of people are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a floor washing machine technical field especially relates to a dust and dirt suction function switching device for floor washing machine. BACKGROUND

[0002] Environmental health is an important factor affecting the quality of life, therefore, with the continuous improvement of people's quality of life requirements, the corresponding requirement of environmental health is also higher and higher, however, the work pressure of modern people increases day by day, and it is urgent to be liberated from heavy cleaning work, so many ground cleaning equipment appear to improve environmental health, commonly used are dust collector, automatic mop machine, sweeper and floor washing machine.

[0003] The common floor washing machine on the market generally has the functions of sweeping and sucking dirt, and the two functions are used together to clean the ground, but the sweeping and dirt sucking functions on it can only be performed simultaneously, and the only switchable function is the opening of the additional disinfection lamp, which cannot meet the demand of people who want to perform the sweeping or dirt sucking function alone. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned defects, the utility model aims at providing a dust and dirt suction function switching device for floor washing machine, which can separate the dust suction channel and the sewage tank by moving the switching plate, and increase the negative pressure of dust suction or dirt suction, so that the floor washing machine body can more easily suck dust or dirt alone, improve the cleaning efficiency of the floor washing machine body, meet the different use requirements of people and improve the use experience of people.

[0005] The utility model adopts the technical scheme of:

[0006] A dust and dirt suction function switching device for a floor scrubber includes a floor scrubber body, a wastewater tank disposed on the floor scrubber body, and a dust brush assembly disposed on the floor scrubber body. The device is characterized by further including a switching assembly disposed within the floor scrubber body and located on the side wall of the wastewater tank. The switching assembly includes a fixed plate disposed within the floor scrubber body and located on the side wall of the wastewater tank, a drive motor disposed within the floor scrubber body and located at the lower end of the fixed plate facing the wastewater tank, and a switching plate that is moved by the drive motor and slides laterally on the fixed plate. The dust brush assembly includes a suction channel with its tail end facing the switching plate. The fixed plate has a first fixed opening matching both the suction channel and the wastewater tank, and a second fixed opening matching both the suction channel and the wastewater tank. The switching plate has a first movable opening matching both the suction channel and the wastewater tank, and a second movable opening matching both the suction channel and the wastewater tank in its middle portion. Both ends of the switching plate are closed.

[0007] As a further improvement of this utility model, a drive gear is provided on the output shaft of the drive motor, and a drive rack meshing with the drive gear is formed at the lower end of the switching plate.

[0008] As a further improvement of this utility model, a third movable opening is formed on the left side of the switching plate, which is matched with the dust suction channel and the sewage tank and is in a closed state, and a fourth movable opening is formed on the right side of the switching plate, which is matched with the dust suction channel and the sewage tank and is in a closed state.

[0009] As a further improvement of this utility model, the first movable port extends with interference fit to one end of the fixed plate and the dust suction channel respectively; the second movable port extends with interference fit to one end of the fixed plate and the dust suction channel respectively; the third movable port extends with interference fit to one end of the fixed plate and the dust suction channel respectively; and the fourth movable port extends with interference fit to one end of the fixed plate and the dust suction channel respectively.

[0010] As a further improvement of this utility model, it also includes a barrier plate disposed between the side wall of the sewage tank and the switching plate. A barrier air duct is formed at one end of the barrier plate facing the switching plate, and a barrier ventilation opening is formed on the side of the barrier air duct away from the second fixed opening, extending to the bottom of the sewage tank.

[0011] As a further improvement of this utility model, it also includes a machine head fixing shell disposed on the body of the floor scrubber, wherein a downwardly protruding ventilation groove is formed at the bottom of the machine head fixing shell, and a barrier embedding groove is formed on the side wall of the ventilation groove for the barrier plate to be embedded.

[0012] As a further improvement of this utility model, the bottom of the sewage tank is located above the ventilation slot and extends upward inside the sewage tank, forming a first sewage suction air channel and a second sewage suction air channel.

[0013] As a further improvement of this utility model, the first suction air channel extends vertically upward and opens upward.

[0014] As a further improvement of this utility model, the top end of the second sewage suction air channel is arc-shaped, and its opening is located on the top of its side wall.

[0015] As a further improvement of this utility model, a first limiting strip protruding towards the fixed plate and a second limiting strip protruding towards the machine head fixed shell are formed on the switching plate. A first limiting groove for sliding of the first limiting strip is formed on the fixed plate, and a second limiting groove for sliding of the second limiting strip is formed on the machine head fixed shell.

[0016] The beneficial effects of this utility model are as follows:

[0017] This vacuuming and cleaning function switching device includes a floor scrubber body, a wastewater tank mounted on the floor scrubber body, a dust brush assembly mounted on the floor scrubber body, and a switching assembly mounted inside the floor scrubber body and located on the side wall of the wastewater tank. The switching assembly includes a fixed plate mounted inside the floor scrubber body and located on the side wall of the wastewater tank, a drive motor mounted inside the floor scrubber body and located at the lower end of the fixed plate facing the wastewater tank, and a switching plate that is moved by the drive motor and slides laterally on the fixed plate. The dust brush assembly includes a suction channel with its tail end facing the switching plate. The fixed plate has a first fixed opening that matches both the suction channel and the wastewater tank, and a second fixed opening that matches both the suction channel and the wastewater tank. The middle of the switching plate has a first movable opening that matches both the suction channel and the wastewater tank, and a second movable opening that matches both the suction channel and the wastewater tank. Both ends of the switching plate are closed.

[0018] When both vacuuming and cleaning functions are required, the drive motor moves the switching plate engaged with it to a position where the first movable port is aligned with the first fixed port and the second movable port is aligned with the second fixed port. At this time, the vacuuming channel is aligned with the first fixed port and the first movable port, and the three are connected. This allows the floor scrubber body to connect to the vacuuming channel through the first fixed port and the first movable port. The vacuuming channel is aimed at the lower end of the floor scrubber body to vacuum, thus achieving the vacuuming function. The wastewater tank is connected to the second fixed port and the second movable port, allowing the floor scrubber body to connect to the wastewater tank through the second fixed port and the second movable port. This creates a negative pressure in the wastewater tank, allowing the wastewater below the floor scrubber body to be drawn into the wastewater tank under the negative pressure, thus achieving the cleaning function.

[0019] When the vacuuming function is needed, the drive motor moves the switching plate engaged with it to the left, causing the first movable port on the switching plate to move to a closed position on the left side of the fixed plate. The second movable port on the switching plate is directly opposite the first fixed port. At this time, the vacuuming channel, the first fixed port, and the second movable port are in a straight line and connected. The second fixed port is partially blocked by the right side of the switching plate and is not connected to the wastewater tank. This allows the floor scrubber body to connect to the vacuuming channel through the first fixed port and the second movable port. The vacuuming channel is aimed at the lower end of the floor scrubber body to vacuum, thus achieving the vacuuming function. Furthermore, because the suction power on the floor scrubber body is only transmitted through a single first fixed port and second movable port, the suction power in the vacuuming channel is more concentrated and greater, which can more effectively vacuum the dust at the lower end of the floor scrubber body, improving the vacuuming efficiency of the floor scrubber body.

[0020] When the vacuuming function is needed alone, the drive motor moves the switching plate engaged with it to the right, thereby moving the first movable port on the switching plate to the position directly opposite the second fixed port, and the second movable port on the switching plate to the position closed on the right side of the fixed plate. At this time, the first fixed port is partially blocked by the left side of the switching plate and is not connected to the dust suction channel. The wastewater tank is connected to the first movable port and the second fixed port, so that the floor scrubber body can connect to the wastewater tank through the second fixed port and the first movable port, creating a negative pressure in the wastewater tank. This negative pressure drives the wastewater below the floor scrubber body to be sucked into the wastewater tank, achieving the vacuuming function. Furthermore, because the suction force on the floor scrubber body is transmitted through a single second fixed port and the first movable port, the suction force on the wastewater tank is more concentrated and greater, making it more effective at sucking in the wastewater from the bottom of the floor scrubber body, thus improving the efficiency of the floor scrubber body's vacuuming.

[0021] The overall operation is simple and straightforward, and the structure is concise. The dust collection channel and the wastewater tank can be separated by the movement of the switching plate. While achieving independent dust or waste collection, it also increases the negative pressure for dust or waste collection, making it easier for the floor scrubber to collect dust or waste independently. This improves the cleaning efficiency of the floor scrubber, meets different user needs, and enhances the user experience.

[0022] The above is an overview of the utility model's technical solution. The following description, in conjunction with the accompanying drawings and specific embodiments, will further illustrate the utility model. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0024] Figure 2 This is an exploded view of the upper part of the floor scrubber body;

[0025] Figure 3 This is a diagram illustrating the switching of components when vacuuming and cleaning functions are required;

[0026] Figure 4 This is a diagram illustrating the switching of components when vacuuming alone.

[0027] Figure 5 This is a diagram illustrating the switching mechanism when vacuuming only.

[0028] Figure 6 This is a schematic diagram of the back of the switching board, drive motor, and drive gear.

[0029] Figure 7 This is a schematic diagram of the back of the barrier plate;

[0030] Figure 8 A schematic diagram of the bottom of the headstock mounting housing;

[0031] Figure 9 A schematic diagram of the top of the headstock mounting housing;

[0032] In the diagram: 1. Floor scrubber body; 2. Wastewater tank; 21. First suction air channel; 22. Second suction air channel; 3. Dust brush assembly; 31. Dust suction channel; 4. Switching assembly; 41. Fixing plate; 411. First fixing port; 412. Second fixing port; 413. First limiting groove; 42. Drive motor; 43. Switching plate; 431. First moving port; 432. Second moving port; 433. Drive rack; 434. Third moving port; 435. Fourth moving port; 436. First limiting strip; 437. Second limiting strip; 44. Drive gear; 5. Barrier plate; 51. Barrier air duct; 52. Barrier vent; 6. Machine head fixing shell; 61. Ventilation slot; 62. Barrier embedding slot; 63. Second limiting groove. Detailed Implementation

[0033] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods of this utility model will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0034] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Please refer to Figures 1 to 9This utility model embodiment provides a dust and dirt suction function switching device for a floor scrubber, including a floor scrubber body 1, a wastewater tank 2 disposed on the floor scrubber body 1, a dust brush assembly 3 disposed on the floor scrubber body 1, and a switching assembly 4 disposed inside the floor scrubber body 1 and located on the side wall of the wastewater tank 2. The switching assembly 4 includes a fixing plate 41 disposed inside the floor scrubber body 1 and located on the side wall of the wastewater tank 2, a drive motor 42 disposed inside the floor scrubber body 1 and located at the lower end of the fixing plate 41 facing the wastewater tank 2, and a device that is moved by the drive motor 42 and slides laterally. A switching plate 43 is provided on the fixed plate 41. The dust brush assembly 3 includes a suction channel 31 with its tail end facing the switching plate 43. The fixed plate 41 has a first fixed port 411 that matches both the suction channel 31 and the wastewater tank 2, and a second fixed port 412 that matches both the suction channel 31 and the wastewater tank 2. The middle part of the switching plate 43 has a first movable port 431 that matches both the suction channel 31 and the wastewater tank 2, and a second movable port 432 that matches both the suction channel 31 and the wastewater tank 2. Both ends of the switching plate 43 are closed.

[0038] like Figure 3 As shown, when both vacuuming and cleaning functions need to be used simultaneously, the drive motor 42 moves the switching plate 43 engaged thereon to a position where the first movable port 431 is directly opposite the first fixed port 411 and the second movable port 432 is directly opposite the second fixed port 412. At this time, the vacuuming channel 31 is aligned with the first fixed port 411 and the first movable port 431, and the three are connected. This allows the floor scrubber body 1 to connect to the vacuuming channel 31 through the first fixed port 411 and the first movable port 431. The vacuuming channel 31 is aligned with the lower end of the floor scrubber body 1 to vacuum, thus achieving the vacuuming function. The wastewater tank 2 is connected to the second fixed port 412 and the second movable port 432, allowing the floor scrubber body 1 to connect to the wastewater tank 2 through the second fixed port 412 and the second movable port 432. This creates a negative pressure in the wastewater tank 2, allowing the wastewater below the floor scrubber body 1 to be drawn into the wastewater tank 2 under the negative pressure, thus achieving the cleaning function.

[0039] like Figure 4As shown, when the vacuuming function needs to be used alone, the drive motor 42 drives the switching plate 43 engaged thereon to move to the left, thereby moving the first movable port 431 on the switching plate 43 to a position closed on the left side of the fixed plate 41. The second movable port 432 on the switching plate 43 is directly opposite the first fixed port 411. At this time, the vacuuming channel 31, the first fixed port 411, and the second movable port 432 are in a straight line and connected. The second fixed port 412 is partially blocked by the right side of the switching plate 43 and is not connected to the wastewater tank 2. This allows the floor scrubber body 1 to connect to the vacuuming channel 31 through the first fixed port 411 and the second movable port 432. The vacuuming channel 31 is aimed at the lower end of the floor scrubber body 1 to vacuum, thereby realizing the vacuuming function. Furthermore, because the suction power on the floor scrubber body 1 is only transmitted through a single first fixed port 411 and second movable port 432, the suction power on the vacuuming channel 31 is more concentrated and greater, which can more effectively vacuum the dust at the lower end of the floor scrubber body 1, improving the vacuuming efficiency of the floor scrubber body 1.

[0040] like Figure 5 As shown, when the vacuuming function is needed alone, the drive motor 42 drives the switching plate 43 engaged thereon to move to the right, thereby moving the first movable port 431 on the switching plate 43 to a position directly opposite the second fixed port 412, and the second movable port 432 on the switching plate 43 to a position closed on the right side of the fixed plate 41. At this time, the first fixed port 411 is partially blocked by the left side of the switching plate 43 and is not connected to the vacuuming channel 31. The wastewater tank 2 is connected to the first movable port 431 and the second fixed port 412, thus... The floor scrubber body 1 can be connected to the wastewater tank 2 through the second fixed port 412 and the first movable port 431, creating a negative pressure in the wastewater tank 2. This negative pressure allows the wastewater below the floor scrubber body 1 to be sucked into the wastewater tank 2, thus achieving the function of suction. Furthermore, since the suction force on the floor scrubber body 1 is transmitted through a single second fixed port 412 and first movable port 431, the suction force on the wastewater tank 2 is more concentrated and stronger, making it more effective at sucking in the wastewater at the lower end of the floor scrubber body 1 and improving the efficiency of the floor scrubber body 1 in suction.

[0041] The overall operation is simple and straightforward, and the structure is concise. By moving the switching plate 43, the dust suction channel 31 and the wastewater tank 2 can be separated. While achieving independent dust or waste suction, it also increases the negative pressure of dust or waste suction, making it easier for the floor scrubber body 1 to perform independent dust or waste suction, improving the cleaning efficiency of the floor scrubber body 1, meeting different user needs, and enhancing the user experience.

[0042] Preferably, the drive motor 42 is a brushless motor. Brushless motors have no brush friction, resulting in lower losses and higher operating efficiency. Compared to brushed motors, brushless motors have a higher energy efficiency ratio, providing longer battery life and lower energy consumption. Furthermore, eliminating brushes reduces interference from electrical sparks on remote control wireless devices. Due to the absence of mechanical brush friction, brushless motors have lower noise and smoother operation, better meeting people's demand for quiet floor scrubbers.

[0043] like Figure 2 and Figure 6 As shown, regarding the specific method by which the drive motor 42 drives the switching plate 43, a drive gear 44 is provided on the output shaft of the drive motor 42, and a drive rack 433 meshes with the drive gear 44 at the lower end of the switching plate 43. When the drive motor 42 starts, it drives the drive gear 44 to rotate, thereby causing the drive rack 433 meshing with the drive gear 44 to drive the switching plate 43 on it to move laterally on the fixed plate 41, thereby allowing the switching plate 43 to switch between dust collection and dirt collection functions. The entire structure is simple and clear, with high driving efficiency and fast response speed.

[0044] The specific method by which the switching plate 43 blocks the first fixing port 411 or the second fixing port 412 is as follows: Figures 2 to 6As shown, the left side of the switching plate 43 has a third movable port 434 that matches and is closed to both the vacuuming channel 31 and the wastewater tank 2, and the right side of the switching plate 43 has a fourth movable port 435 that matches and is closed to both the vacuuming channel 31 and the wastewater tank 2. When both vacuuming and wastewater suction functions need to be used simultaneously, the drive motor 42 moves the switching plate 43 so that the first movable port 431 is aligned with the first fixed port 411, the second movable port 432 is aligned with the second fixed port 412, the third movable port 434 is aligned with the closed position on the left side of the fixed plate 41, and the fourth movable port 435 is aligned with the closed position on the right side of the fixed plate 41. This allows the vacuuming channel 31 to connect through the first fixed port 411 and the first movable port 431, and the wastewater tank 2 to connect with the second fixed port 412 and the second movable port 432, thus realizing the vacuuming and wastewater suction functions. When the vacuuming function is needed to be used alone, the drive motor 42 drives the switching plate 43 to move to the left, thereby moving the first moving port 431 and the third moving port 434 on the switching plate 43 to the closed position on the left side of the fixed plate 41. The second moving port 432 is directly opposite the first fixed port 411, and the fourth moving port 435 is directly opposite the second fixed port 412. Because the fourth moving port 435 is closed, it blocks the second fixed port 412, so that the second fixed port 412 and the sewage tank 2 are not connected, so as to achieve the purpose of more powerful vacuuming in the vacuuming channel 31. When the vacuuming function is needed to be used alone, the drive motor 42 drives the switching plate 43 to move to the right. The third moving port 434 on the switching plate 43 moves to the position of the first fixed port 411. Because the third moving port 434 is closed, it blocks the first fixed port 411, making the first fixed port 411 and the vacuuming channel 31 disconnected. The first moving port 431 on the switching plate 43 moves to the position of the second fixed port 412. The second moving port 432 and the fourth moving port 435 move to the closed position on the right side of the fixed plate 41, thereby making the vacuuming ability stronger.

[0045] To make the suction of the floor scrubber body 1 more concentrated, such as Figures 2 to 6 As shown, the first movable port 431 extends with interference fit to one end of the fixed plate 41 and the suction channel 31, respectively; the second movable port 432 extends with interference fit to one end of the fixed plate 41 and the suction channel 31, respectively; the third movable port 434 extends with interference fit to one end of the fixed plate 41 and the suction channel 31, respectively; and the fourth movable port 435 extends with interference fit to one end of the fixed plate 41 and the suction channel 31, respectively. This structure, with interference fit on both sides, ensures that after the switching plate 43 is moved to various positions by the drive motor 42, it is in interference fit with each structure, thereby achieving stable suction transmission of the floor scrubber body 1 and improving the operating efficiency of the floor scrubber.

[0046] Regarding the specific method by which the sewage in the sewage tank 2 cannot enter the floor scrubber body 1 but is transferred to the sewage tank 2 by negative pressure suction, such as... Figures 2 to 7 As shown, the vacuuming and cleaning function switching device also includes a barrier plate 5 disposed between the side wall of the wastewater tank 2 and the switching plate 43. A barrier air duct 51 is formed at one end of the barrier plate 5 facing the switching plate 43. A barrier ventilation opening 52 is formed on the side of the barrier air duct 51 away from the second fixing port 412, which extends to the bottom of the wastewater tank 2. The barrier plate 5 is fixed inside the floor scrubber body 1 and cannot move with the switching plate 43, and is located on the right side of the second fixing port 412.

[0047] For other structures of the floor scrubber body 1, such as Figure 2 and Figures 8 to 9 As shown, the vacuuming and cleaning function switching device also includes a head fixing shell 6 disposed on the floor scrubber body 1. A downward protruding ventilation groove 61 is formed at the bottom of the head fixing shell 6. A blocking insertion groove 62 is formed on the side wall of the ventilation groove 61 for the blocking plate 5 to be inserted, thereby fixing the blocking plate 5 and preventing the blocking plate 5 from moving with the switching plate 43.

[0048] Preferably, to make this vacuuming and dirt-collecting function switching device more airtight, such as Figure 2 and Figures 8 to 9 As shown, the head fixing shell 6 has a downwardly extending fixing extension plate. The fixing extension plate is located between the barrier plate 5, the dust suction channel 31, and the switching plate 43. While fixing, it achieves a tighter effect between the components. The ventilation groove 61 is formed on the fixing extension plate.

[0049] Regarding the specific ventilation method inside the sewage tank 2, such as Figure 2 As shown, the bottom of the sewage tank 2 is located above the ventilation slot 61 and extends upward inside the sewage tank 2, forming a first sewage suction air channel 21 and a second sewage suction air channel 22.

[0050] When the floor scrubber body 1 needs to generate negative pressure for suction, the airflow from the second fixed port 412 to the first moving port 431 or the second moving port 432 enters the blocking air duct 51 from the right side, and then enters the sunken ventilation trough 61 through the blocking ventilation port 52. Then, it enters the wastewater tank 2 through the first suction air channel 21 and the second suction air channel 22, thereby providing negative pressure suction on the roller brush of the floor scrubber body 1 connected to the wastewater tank 2 to absorb the wastewater on the roller brush and the wastewater below into the wastewater tank 2, thus completing the suction function.

[0051] By setting the first and second suction air channels 21 and 22 in an upward-extending structure inside the wastewater tank 2, the wastewater in the wastewater tank 2 sinks to the bottom of the wastewater tank 2. This prevents the wastewater in the wastewater tank 2 from easily entering the ventilation channel 61 from the high-level first and second suction air channels 21 and 22, and also prevents it from entering the obstruction air duct 51, which requires a winding path, from the obstruction air vent 52 in the obstruction plate 5 in the middle of the ventilation channel 61, and then entering the floor scrubber body 1. The combination of multiple structures effectively prevents the wastewater in the wastewater tank 2 from entering the floor scrubber body 1, ensuring the normal operation of the floor scrubber body 1. At the same time, it can also provide negative pressure suction on the roller brush of the floor scrubber body 1 connected to the wastewater tank 2 to absorb the wastewater on the roller brush and the wastewater below into the wastewater tank 2, thus completing the function of suction.

[0052] Preferred, such as Figure 2 As shown, the first suction air channel 21 extends vertically upward and opens upward, so that negative pressure suction is transmitted from the upper opening of the first suction air channel 21 and then provides negative pressure to the sewage tank 2, so that sewage is adsorbed from the roller brush and the floor. The structure of the upper opening prevents sewage from easily entering the ventilation slot 61 from the high-level first suction air channel 21. While providing negative pressure suction, it avoids sewage from entering the suction structure of the floor scrubber body 1, which would cause the suction structure to malfunction.

[0053] Preferred, such as Figure 2 As shown, the top of the second suction air channel 22 is arc-shaped, and its opening is located on the top of its side wall. This allows negative pressure suction to be transmitted from the top of the side wall of the second suction air channel 22 to provide negative pressure into the wastewater tank 2, causing wastewater to be absorbed from the roller brush and the floor. The structure of the top opening prevents wastewater from easily entering the ventilation slot 61 from the high-positioned first suction air channel 21. While providing negative pressure suction, it also prevents wastewater from entering the suction structure of the floor scrubber body 11, thus avoiding the problem of the suction structure malfunctioning. Its side wall opening faces the upper periphery of the wastewater tank 2, and in conjunction with the structure of the opening on the first suction air channel 21, the negative pressure in the wastewater tank 2 can be transmitted to multiple angles, providing more uniform negative pressure, more stable and comprehensive suction, and effectively improving the working efficiency of the floor scrubber body 1.

[0054] To make the movement of the switching plate 43 more precise, such as Figures 2 to 6 as well as Figure 8As shown, the switching plate 43 has a first limiting strip 436 protruding towards the fixed plate 41 and a second limiting strip 437 protruding towards the machine head fixing shell 6. The fixed plate 41 has a first limiting groove 413 for the first limiting strip 436 to slide, and the machine head fixing shell 6 has a second limiting groove 63 for the second limiting strip 437 to slide. When the switching plate 43 is driven by the drive motor 42, the first limiting strip 436 moves within the first limiting groove 413, and the second limiting strip 437 moves within the second limiting groove 63. These four elements work together to limit the travel of the switching plate 43, preventing it from shifting or falling off during operation. This allows for more precise movement of the switching plate 43, improving the efficiency of function switching in the floor scrubber body 1 and facilitating user operation. The second limiting strip 437 is mounted on the fixed extension plate.

[0055] For other structures of the dust brush assembly 3, such as Figure 1 and Figure 2 As shown, the dust brush assembly 3 also includes a dust brush disposed on the floor scrubber body and facing the dust suction channel 31, a motor connected to the dust brush, and a dust bin disposed on the floor scrubber body. The motor drives the dust brush to rotate, sweeping up the dust on the ground and entering the dust suction channel to be sucked into the dust bin on the floor scrubber body.

[0056] Preferred, such as Figures 2 to 5 As shown, the back of the fixing plate 41 is a flat-mouth triangular shape and connects the first fixing port 411 and the second fixing port 412 of the fixing plate 41 to transfer the negative pressure suction of the floor scrubber body 1.

[0057] The suction structure of the floor scrubber body 1 can be a motor or the like, which is existing technology in the field, so it will not be described in detail in this embodiment.

[0058] It should be noted that the dust and dirt suction function switching device for floor scrubbers disclosed in this utility model is an improvement on the specific structure, but the specific control method is not an innovation of this utility model. The brushless motor, roller brush, gears, and other components involved in this utility model can be general standard parts or components known to those skilled in the art. Their structure, principle, and control method are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0059] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, other structures obtained by using the same or similar technical features as the above embodiments of the present utility model are all within the protection scope of the present utility model.

Claims

1. A dust and dirt suction function switching device for a floor scrubber, comprising a floor scrubber body, a wastewater tank disposed on the floor scrubber body, and a dust brush assembly disposed on the floor scrubber body, characterized in that: It also includes a switching assembly disposed within the body of the floor scrubber and located on the side wall of the wastewater tank. The switching assembly includes a fixed plate disposed within the body of the floor scrubber and located on the side wall of the wastewater tank, a drive motor disposed within the body of the floor scrubber and located at the lower part of the fixed plate facing the wastewater tank, and a switching plate that is moved by the drive motor and slides laterally on the fixed plate. The dust brush assembly includes a suction channel with its tail end facing the switching plate. The fixed plate has a first fixed opening that matches both the suction channel and the wastewater tank, and a second fixed opening that matches both the suction channel and the wastewater tank. The middle part of the switching plate has a first movable opening that matches both the suction channel and the wastewater tank, and a second movable opening that matches both the suction channel and the wastewater tank. Both ends of the switching plate are closed.

2. The dust and dirt suction function switching device for a floor scrubber according to claim 1, characterized in that: A drive gear is provided on the output shaft of the drive motor, and a drive rack is formed at the lower end of the switching plate, which meshes with the drive gear.

3. The dust and dirt suction function switching device for a floor scrubber according to claim 1, characterized in that: The left side of the switching plate has a third movable opening that matches both the dust suction channel and the wastewater tank and is in a closed state, and the right side of the switching plate has a fourth movable opening that matches both the dust suction channel and the wastewater tank and is in a closed state.

4. The dust and dirt suction function switching device for a floor scrubber according to claim 3, characterized in that: The first movable port extends with interference fit to one end of the fixed plate and the dust suction channel, respectively; the second movable port extends with interference fit to one end of the fixed plate and the dust suction channel, respectively; the third movable port extends with interference fit to one end of the fixed plate and the dust suction channel, respectively; and the fourth movable port extends with interference fit to one end of the fixed plate and the dust suction channel, respectively.

5. The dust and dirt suction function switching device for a floor scrubber according to claim 1, characterized in that: It also includes a baffle plate disposed between the side wall of the sewage tank and the switching plate. A baffle duct is formed at one end of the baffle plate facing the switching plate, and a baffle vent is formed on the side of the baffle duct away from the second fixed port, extending to the bottom of the sewage tank.

6. The dust and dirt suction function switching device for a floor scrubber according to claim 5, characterized in that: It also includes a head fixing shell disposed on the body of the floor scrubber, wherein a downwardly protruding ventilation groove is formed at the bottom of the head fixing shell, and a barrier embedding groove is formed on the side wall of the ventilation groove for the barrier plate to be embedded.

7. The dust and dirt suction function switching device for a floor scrubber according to claim 6, characterized in that: The wastewater tank has a first suction air channel located above the ventilation duct and extending upward inside the wastewater tank, and a second suction air channel located above the ventilation duct and extending upward inside the wastewater tank.

8. The dust and dirt suction function switching device for a floor scrubber according to claim 7, characterized in that: The first suction air duct extends vertically upward and opens upward.

9. The dust and dirt suction function switching device for a floor scrubber according to claim 7, characterized in that: The top of the second suction air channel is arc-shaped, and its opening is located on the top of its side wall.

10. The dust and dirt suction function switching device for a floor scrubber according to claim 6, characterized in that: The switching plate has a first limiting strip protruding towards the fixed plate and a second limiting strip protruding towards the machine head fixing shell. The fixed plate has a first limiting groove for sliding of the first limiting strip, and the machine head fixing shell has a second limiting groove for sliding of the second limiting strip.

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