Automatic water adding mechanism for scrubber

Abstract

The utility model discloses an automatic water adding mechanism for a scrubber, which comprises a scrubber body and a base, and a clear water tank is arranged on the lower portion of the scrubber body. The limiting box is arranged in the base and is matched with the scrubber body; the limiting guide frame is arranged on the outer side of the limiting box and is opposite to the clean water tank; the water adding driving motor is arranged on the limiting guide frame; the water adding driving gear is arranged on an output shaft of the water adding driving motor; the lower end of the water adding pipeline assembly is connected to the water adding linkage gear, the water adding pipeline assembly slides in the limiting guide frame in the radial direction, and the water adding sealing assembly is rotationally arranged in the scrubber body and right faces the water adding pipeline assembly. According to the floor scrubber, the action of automatically adding water can be achieved when the floor scrubber body is placed in the base, water injection is automatically stopped after the floor scrubber body is full of water, manpower participation is not needed, daily use of people is facilitated, and the use experience of people is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a floor washing machine technical field especially relates to a kind of automatic water-adding mechanism 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 for environmental health is also increasingly high, however, modern people's work pressure increases day by day, and it is urgently needed 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. Floor washing machine is a kind of equipment for cleaning floor, current floor washing machine has been relatively perfect in function since development, and it is mainly divided into semi-automatic floor washing machine, full-automatic floor washing machine, hand-push floor washing machine and driving floor washing machine, but the working principle of each floor washing machine is basically the same, which is to spray clean water and detergent to ground, and to suck sewage into sewage tank in floor washing machine again during cleaning, so as to complete cleaning process.

[0003] Common floor washing machine on market is generally provided with clean water tank in handle, after the clean water in clean water tank is used up, clean water tank is disassembled from handle and then filled with water, its steps are complicated, and it is necessary to clean sewage tank and other actions, which further affects user's use experience. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned defects, the utility model aims at providing an automatic water-adding mechanism for floor washing machine, which can realize automatic water-adding action when the floor washing machine body is placed in the base, and stop water injection automatically when full, without human intervention, which is beneficial to people's daily use and effectively improves people's use experience.

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

[0006] An automatic water adding mechanism for a floor cleaning machine, comprising a floor cleaning machine body and a base receiving the floor cleaning machine body, a clean water tank being arranged at a lower portion of the floor cleaning machine body, a limiting box being arranged in the base and matched with the floor cleaning machine body, a limiting guide frame being arranged outside the limiting box and opposite to the clean water tank, a water adding driving motor being arranged on the limiting guide frame, a water adding driving gear being arranged on an output shaft of the water adding driving motor, a water adding linkage gear being engaged with the water adding driving gear, a water adding pipe assembly being connected to a lower end of the water adding linkage gear and radially sliding in the limiting guide frame, and a water adding sealing assembly being rotatably arranged in the floor cleaning machine body and opposite to the water adding pipe assembly, the water adding sealing assembly being sealed against the clean water tank without external force, the water adding pipe assembly driving the water adding sealing assembly to be opened under the driving of the water adding driving motor, and a water source entering the clean water tank from the water adding pipe assembly.

[0007] As a further improvement of the utility model, the water adding pipe assembly comprises a water adding guide block arranged at a lower end of the water adding linkage gear and radially sliding in the limiting guide frame, and a water injection pipe extending through the water adding guide block and extending towards the clean water tank.

[0008] As a further improvement of the utility model, the water adding pipe assembly further comprises a backflow pipe extending through the water adding guide block and extending towards the clean water tank, and a liquid level sensor arranged at a tail end of the backflow pipe.

[0009] As a further improvement of the utility model, the height of the water injection pipe is higher than the height of the backflow pipe.

[0010] As a further improvement of the utility model, inwardly protruding water adding limiting flanges are formed on both sides of the limiting guide frame, and inwardly recessed water adding limiting grooves matched with the water adding limiting flanges are formed on both sides of the water adding guide block.

[0011] As a further improvement of the utility model, the limiting guide frame further comprises an upper limiting guide block formed on a side of the limiting box and limiting an upper end of the water adding guide block.

[0012] As a further improvement of the utility model, a water injection opening for the water injection pipe and a backflow opening for the backflow pipe are formed on a side of the clean water tank.

[0013] As a further improvement of the utility model, the water adding sealing assembly comprises a water adding sealing fixed column arranged on the inner wall of the clean water tank, a water adding sealing pressing plate rotatably arranged on the water adding sealing fixed column, and a torsion spring sleeved between the water adding sealing fixed column and the water adding sealing pressing plate, the water adding sealing pressing plate is formed with a water adding pressing boss protruding towards the water inlet direction and resisting and sealing the water inlet, and a backflow pressing boss protruding towards the backflow port direction and resisting and sealing the backflow port.

[0014] As a further improvement of the utility model, the water adding guide block is formed with a horizontal extension linkage movable groove at the lower end, and the water adding linkage gear is formed with a water adding linkage column protruding upwards and sliding into the linkage movable groove.

[0015] The utility model has the advantages of:

[0016] (2) by setting the automatic water adding mechanism as comprising a scrubber body and a base containing the scrubber body, the lower part of the scrubber body is provided with a clean water tank, characterized by: further comprising a limiting box arranged in the base and matched with the scrubber body, a limiting guide frame arranged outside the limiting box and opposite to the clean water tank, a water adding driving motor arranged on the limiting guide frame, a water adding driving gear arranged on the output shaft of the water adding driving motor, a water adding linkage gear engaged with the water adding driving gear, a water adding pipeline assembly connected to the water adding linkage gear at the lower end and radially sliding in the limiting guide frame, and a water adding sealing assembly rotatably arranged in the scrubber body and opposite to the water adding pipeline assembly, under the condition of no external force, the water adding sealing assembly resists and seals the clean water tank. After the user places the scrubber body in the base, the user can start the water adding driving motor through remote control or the button on the base, the water adding driving motor drives the water adding driving gear arranged thereon to rotate, the water adding linkage gear engaged with the water adding driving gear is rotated and drives the water adding pipeline assembly arranged thereon to extend into the side edge of the clean water tank and push the water adding sealing assembly open, so that the water adding pipeline assembly conveys the external clean water into the clean water tank, the purpose of water injection is achieved, the whole process is simple and clear, the automation degree is high, no manpower is needed, it is beneficial for people's daily use, and the use experience of people is effectively improved.

[0017] (2) by the water pipe assembly is set to include the lower end is set on the water filling linkage gear and radially sliding in the limiting guide frame a water guide block, and through the water guide block and extend in the direction of the clean water tank a water pipe, also includes a backflow tube through the water guide block and extend in the direction of the clean water tank, and set in the backflow tube tail end a liquid level sensor, the water guide block is connected to the water filling linkage gear, so that the water filling linkage gear is driven by the water filling drive motor, so that the water pipe and backflow tube set on it is driven to open the water filling sealing assembly along the limiting guide frame direction, the external clean water is injected into the clean water tank by the water pipe, when the clean water reaches a certain level, the clean water in the clean water tank flows back into the backflow tube, which is sensed by the liquid level sensor at the tail end, the external control mechanism receives the information feedback by the liquid level sensor, and controls the external water source to stop injecting, and controls the water filling drive motor to drive the water guide block to move the water pipe and backflow tube in the limiting guide frame towards the direction away from the clean water tank, the water filling sealing assembly reseals the clean water tank, until the next time of water filling. The whole process is simple and convenient, without human intervention, and realizes automatic water filling, and can also automatically stop water filling, further improves the use experience of the scrubber.

[0018] The above is a summary of the utility model technical scheme, the following will be further illustrated in combination with the specific embodiments and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall schematic view of the utility model;

[0020] Figure 2 It is the overall schematic view of the scrubber body;

[0021] Figure 3 It is the overall schematic view of the base;

[0022] Figure 4 It is the structural schematic view of the base after removing the shell;

[0023] Figure 5 It is the structural schematic view of the base after removing the shell rear side;

[0024] Figure 6 It is the exploded view of the base after removing the shell;

[0025] Figure 7 It is the structural schematic view of the water pipe assembly;

[0026] Figure 8 It is the structural schematic view of the water filling sealing assembly;

[0027] In the diagram: 01. Floor scrubber body; 02. Base; 03. Clean water tank; 031. Water inlet; 032. Return outlet; 04. Limiting box; 05. Limiting guide frame; 051. Water filling limiting flange; 052. Upper limit guide block; 06. Water filling drive motor; 07. Water filling drive gear; 08. Water filling linkage gear; 081. Water filling linkage column; 09. Water filling pipe assembly; 091. Water filling guide block; 0911. Water filling limiting groove; 0912. Linkage movable groove; 092. Water filling pipe; 093. Return pipe; 094. Liquid level sensor; 10. Water filling sealing assembly; 101. Water filling sealing fixing column; 102. Water filling sealing pressure plate; 1021. Water filling pressure boss; 1022. Return pressure boss; 103. Torsion spring. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Please refer to Figures 1 to 8The utility model embodiment provides a kind of automatic water adding mechanism for scrubber, including a scrubber body 01 and the base 02 of the scrubber body 01 is housed in one, the lower part of the scrubber body 01 is provided with a clean water tank 03, still include being set in base 02 and in the matching limit box 04 of the scrubber body 01, the limit guide frame 05 being set to the outer side of the limit box 04 and being just for clean water tank 03, the water adding drive motor 06 being set to the limit guide frame 05, the water adding drive gear 07 being set to the output shaft of the water adding drive motor 06, the water adding drive gear 07 is engaged on one water adding linkage gear 08, the water adding pipeline assembly 09 of the lower end being connected to the water adding linkage gear 08 and radially sliding in the limit guide frame 05, and the water adding sealing assembly 10 being rotationally set in the scrubber body 01 and being just for the water adding pipeline assembly 09, in the case where no external force is applied, water adding sealing assembly 10 will resist the sealing of clean water tank 03.After user places scrubber body 01 into base 02, user can start water adding drive motor 06 by remote control or the key on base 02, after water adding drive motor 06 is started, water adding drive gear 07 set on it is rotated, so that water adding linkage gear 08 engaged on water adding drive gear 07 is rotated and pushes water adding pipeline assembly 09 set on it to extend into the side of clean water tank 03 and open water adding sealing assembly 10, so that water adding pipeline assembly 09 sends external clean water into clean water tank 03, completes the purpose of filling, the whole process is simple and clear, and the degree of automation is high, without manpower, beneficial to people's daily use, effectively improve people's use experience. By being provided with the limit box 04 matched with the scrubber body 01 in the base 02, the scrubber body 01 is placed into the limit box 04 when being placed into base 02, so as to realize the purpose of fixing position of scrubber body 01, prevent scrubber body 01 from deviating and other problems in the process of automatic water adding. By being provided with limit guide frame 05 outside clean water tank 03, it is radially extended outward as a whole, so that water adding pipeline assembly 09 can be limited stroke under its radial structure, can only move along its direction, so as to effectively prevent water adding pipeline assembly 09 from shifting during operation, improve the accuracy and efficiency of water adding pipeline assembly 09 opening water adding sealing assembly 10, improve people's use experience.

[0033] For the specific structure of water adding linkage gear 08, such as Figure 5 And Figure 6As shown, the water adding linkage gear 08 can be a gear set, wherein the first set is located at the lower end of the limiting guide frame 05 and engaged on the water adding driving gear 07, the second set is located in the limiting guide frame 05 and the stroke is limited by the limiting guide frame 05, the shaft core is connected with the first set of gears, and the upper end is connected with the water adding pipeline assembly 09, so as to drive the water adding pipeline assembly 09, and the water adding pipeline assembly 09 is limited by the limiting guide frame 05 to prevent displacement during operation, etc., effectively ensuring the normal operation of the automatic water adding mechanism.

[0034] For the specific structure of the water adding pipeline assembly 09, as shown in Figures 3 to 6 As shown, the water adding pipeline assembly 09 includes a water adding guide block 091 arranged at the lower end of the water adding linkage gear 08 and radially sliding in the limiting guide frame 05, and a water injection pipe 092 extending through the water adding guide block 091 and extending to the direction of the clean water tank 03. The water adding guide block 091 is connected to the water adding linkage gear 08, so that the water adding linkage gear 08 is driven by the water adding driving motor 06, so as to drive the water injection pipe 092 arranged thereon to open the water adding sealing assembly 10 in the direction of the limiting guide frame 05, then the external clean water is injected into the clean water tank 03 by the water injection pipe 092, after the water injection is completed, the external control mechanism controls the water adding driving motor 06 to drive the water adding guide block 091 and the water injection pipe 092 to move in the limiting guide frame 05 and away from the direction of the clean water tank 03, the water adding sealing assembly 10 reseals the clean water tank 03, and waits for the next water adding. The whole process is simple and convenient, without human intervention, and realizes automatic water adding and automatic stopping of water adding, further improves the use experience of the scrubber.

[0035] Preferably, in order to further improve the use experience of people, as shown in Figures 3 to 6As shown, the water filling pipe assembly 09 further comprises a backflow pipe 093 extending through the water filling guide block 091 and extending towards the clean water tank 03, and a liquid level sensor 094 arranged at the tail end of the backflow pipe 093. The water filling guide block 091 is connected to the water filling linkage gear 08, so that the water filling linkage gear 08 is driven by the water filling drive motor 06, thereby driving the water filling pipe 092 and the backflow pipe 093 arranged thereon to move along the limiting guide frame 05 to open the water filling sealing assembly 10, and then the external clean water is injected into the clean water tank 03 through the water filling pipe 092. When the clean water reaches a certain level, the clean water in the clean water tank 03 flows back into the backflow pipe 093, which is sensed by the liquid level sensor 094 at the tail end. After receiving the feedback information from the liquid level sensor 094, the external control mechanism controls the external water source to stop injection, and controls the water filling drive motor 06 to drive the water filling guide block 091, the water filling pipe 092 and the backflow pipe 093 to move in the limiting guide frame 05 away from the clean water tank 03, and the water filling sealing assembly 10 reseals the clean water tank 03. The whole process is simple and convenient, without the need for manual intervention, and the automatic water filling is realized, and the water filling is automatically stopped, further improving the use experience of the scrubber. The specific structure of the liquid level sensor 094, the structure and operation mode of the liquid level sensor 094 are existing public technologies, and the model thereof can be selected according to actual conditions, so the specific structure of the liquid level sensor 094 is not described herein.

[0036] Preferably, as Figures 3 to 6 As shown, the height of the water filling pipe 092 is higher than the height of the backflow pipe 093, so that the backflow pipe 093 receives the backflow from the clean water tank 03 before the water filling pipe 092, thereby more accurately controlling the amount of water in the clean water tank 03, preventing the backflow from colliding with the water in the water filling pipe 092, and preventing the water filling pipe 092 from breaking. The water filling guide block 091 can be arranged in a stepped shape according to the height of the water filling pipe 092 and the backflow pipe 093.

[0037] For the specific way of radial movement of the water filling guide block 091 in the limiting guide frame 05, as Figure 5 and Figure 6As shown, the two side edges of the limiting guide frame 05 are respectively formed with inwardly protruding water adding limiting flanges 051, the two sides of the water adding guide block 091 are respectively formed with inwardly recessed water adding limiting grooves 0911 which are matched with the water adding limiting flanges 051, the water adding limiting flanges 051 protrude into the water adding limiting grooves 0911, so that the water adding guide block 091 slides along the water adding limiting flanges 051 during movement, and the travel of the water adding guide block 091 is limited by the water adding limiting flanges 051, effectively preventing the water adding guide block 091 from shifting during movement, making the movement of the water adding guide block 091 more accurate, and effectively improving the working efficiency of the water adding pipeline assembly 09.

[0038] Preferably, as shown in the drawings, Figures 5 to 6 As shown, in order to further prevent the water adding guide block 091 from shifting, the limiting guide frame 05 further comprises an upper limiting guide block 052 formed on the side edge of the limiting box 04 and limiting the upper end of the water adding guide block 091, the upper end of the water adding guide block 091 abuts against the inner side of the lower end of the upper limiting guide block 052, and the upper limiting guide block 052 is in the shape of a trapezoidal, thereby limiting the side edge of the water adding guide block 091, so that the upper end of the water adding guide block 091 can only move along the upper limiting guide block 052, effectively preventing the water adding guide block 091 from shifting during movement, making the movement of the water adding guide block 091 more accurate, and effectively improving the working efficiency of the water adding pipeline assembly 09. For other structures of the upper limiting guide block 052, they can be set according to the structures of the water injection pipe 092 and the return pipe 093, so they are not described herein.

[0039] For the specific way of driving the water adding guide block 091 by the water adding linkage gear 08, as shown in the drawings, Figure 7 As shown, the lower end of the water adding guide block 091 is formed with a transversely extending linkage movable groove 0912, and the water adding linkage gear 08 is formed with a water adding linkage column 081 which protrudes upwardly into the linkage movable groove 0912 to slide. When the water adding drive gear 07 drives the water adding linkage gear 08 to rotate, the water adding linkage column 081 on the water adding linkage gear 08 moves in the linkage movable groove 0912, and since the trajectory of the rotation of the water adding linkage gear 08 is circular, the water adding linkage column 081 slides in the linkage movable groove 0912 while driving the water adding guide block 091 radially, and the water adding guide block 091 is limited by the limiting guide frame 05, so that the water adding guide block 091 moves stably radially in the limiting guide frame 05, ensuring the normal operation of the automatic water adding mechanism.

[0040] Preferably, as shown in the drawings, Figure 4As shown, the limit guide frame 05 is provided with a stop block at one end away from the clean water tank 03, so as to effectively prevent the water filling guide block 091 from moving excessively in the limit guide frame 05 and falling off.

[0041] For the specific structure of the clean water tank 03 for water injection and backflow, as shown in Figure 2 As shown, the side of the clean water tank 03 is formed with a water injection port 031 for the water injection pipe 092 to be inserted, and a backflow port 032 for the backflow pipe 093 to be inserted. When water injection is needed, the water injection pipe 092 penetrates through the water injection port 031 to lift the water filling sealing assembly 10, and the backflow pipe 093 penetrates through the backflow port 032 to lift the water filling sealing assembly 10, so that external clean water can enter the clean water tank 03 through the water injection pipe 092, and the excess water in the clean water tank 03 can be backflowed and controlled through the backflow pipe 093.

[0042] For the specific structure of the water filling sealing assembly 10, as shown in Figure 8 As shown, the water filling sealing assembly 10 includes a water filling sealing fixed column 101 arranged on the inner wall of the clean water tank 03, a water filling sealing pressing plate 102 rotatably arranged on the water filling sealing fixed column 101, and a torsion spring 103 sleeved between the water filling sealing fixed column 101 and the water filling sealing pressing plate 102. The water filling sealing pressing plate 102 is formed with a water injection pressing boss 1021 protruding towards the water injection port 031 and resisting and sealing the water injection port 031, and a backflow pressing boss 1022 protruding towards the backflow port 032 and resisting and sealing the backflow port 032. In the state without external force, the water filling sealing pressing plate 102 is pressed on the inner wall of the clean water tank 03 under the elastic force of the torsion spring 103, the water injection pressing boss 1021 thereon is pressed on the water injection port 031, so as to seal the water injection port 031, and the backflow pressing boss 1022 thereon is pressed on the backflow port 032, so as to seal the backflow port 032. The two cooperate with each other to seal the clean water tank 03 as a whole, so as to ensure that the clean water does not leak out at will during use of the scrubber. When water filling is needed, the water injection pipe 092 penetrates through the water injection port 031 and is pressed on the water injection pressing boss 1021, and the backflow pipe 093 penetrates through the backflow port 032 and is pressed on the backflow port 032, which cooperate with each other to lift the water filling sealing pressing plate 102, so that external clean water can enter the clean water tank 03 through the water injection pipe 092, and the excess water in the clean water tank 03 can be backflowed and controlled through the backflow pipe 093.

[0043] It should be noted that the automatic water adding mechanism for the scrubber disclosed in the utility model is improved in specific structure, and the specific control mode is not the innovation point of the utility model. The motor, torsional spring, water pipe, liquid level sensor and other components involved in the utility model can be general standard components or components known by those skilled in the art, and the structure, principle and control mode are known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0044] The above is only the preferred embodiment of the utility model, and does not limit the technical range of the utility model in any way, so other structures obtained by using the same or similar technical features as the above-mentioned embodiments of the utility model are within the protection scope of the utility model.

Claims

1. An automatic water filling mechanism for a floor scrubber, comprising a floor scrubber body and a base therein housing the floor scrubber body, wherein a clean water tank is provided at the lower part of the floor scrubber body, characterized in that: It also includes a limiting box disposed within the base and matched with the main body of the floor scrubber, a limiting guide frame disposed outside the limiting box and facing the clean water tank, a water filling drive motor disposed on the limiting guide frame, a water filling drive gear disposed on the output shaft of the water filling drive motor, a water filling linkage gear meshing with the water filling drive gear, a water filling pipe assembly whose lower end is connected to the water filling linkage gear and which slides radially within the limiting guide frame, and a water filling sealing assembly rotatably disposed within the main body of the floor scrubber and facing the water filling pipe assembly. Without external force applied, the water filling sealing assembly blocks and seals the clean water tank, and the water filling pipe assembly, driven by the water filling drive motor, pushes open the water filling sealing assembly, allowing water to enter the clean water tank from the water filling pipe assembly.

2. The automatic water filling mechanism for a floor scrubber according to claim 1, characterized in that: The water supply pipeline assembly includes a water supply guide block whose lower end is disposed on the water supply linkage gear and which slides radially within the limiting guide frame, and a water injection pipe that passes through the water supply guide block and extends toward the clean water tank.

3. The automatic water filling mechanism for a floor scrubber according to claim 2, characterized in that: The water supply pipeline assembly also includes a return pipe that passes through the water supply guide block and extends toward the clean water tank, and a liquid level sensor disposed at the end of the return pipe.

4. The automatic water filling mechanism for a floor scrubber according to claim 3, characterized in that: The height of the water injection pipe is higher than the height of the return pipe.

5. The automatic water filling mechanism for a floor scrubber according to claim 3, characterized in that: The limiting guide frame has inwardly protruding water filling limiting flanges on both sides, and the water filling guide block has inwardly recessed water filling limiting grooves on both sides that match the water filling limiting flanges.

6. The automatic water filling mechanism for a floor scrubber according to claim 3, characterized in that: The limiting guide frame also includes an upper limit guide block formed on the side of the limiting box and limiting the upper end of the water filling guide block.

7. The automatic water filling mechanism for a floor scrubber according to claim 3, characterized in that: The side of the clean water tank has an injection port for inserting the injection pipe and a return port for inserting the return pipe.

8. The automatic water filling mechanism for a floor scrubber according to claim 7, characterized in that: The water filling and sealing assembly includes a water filling and sealing fixing post disposed on the inner wall of the clean water tank, a water filling and sealing pressure plate rotatably disposed on the water filling and sealing fixing post, and a torsion spring sleeved between the water filling and sealing fixing post and the water filling and sealing pressure plate. The water filling and sealing pressure plate has a water filling pressure boss that protrudes toward the water inlet and blocks and seals the water inlet, and a return pressure boss that protrudes toward the return outlet and blocks and seals the return outlet.

9. The automatic water filling mechanism for a floor scrubber according to claim 2, characterized in that: The lower end of the water-filling guide block has a horizontally extending linkage groove, and the water-filling linkage gear has an upwardly protruding water-filling linkage column that slides into the linkage groove.

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