Gas-water separation sewage tank structure for scrubber

Abstract

The utility model relates to the technical field of cleaning equipment, and discloses a gas-water separation sewage tank structure for a scrubber, which comprises a tank body, an inlet and an outlet, the inlet and the outlet are arranged on the tank body and communicated with each other, a tank cover is arranged at the top of the tank body, and a gas-water separation plate is arranged in the tank body. An inner cavity defined by the box body and the box cover is divided into an upper-layer cavity and a lower-layer cavity by the gas-water separation plate; a plurality of upper cavities and lower cavities are respectively arranged in the upper-layer cavity and the lower-layer cavity, the upper cavities and the lower cavities are positioned in an airflow channel for communicating the inlet and the outlet, are arranged in a staggered manner and are sequentially folded back and communicated in a serial structure, and a water retaining structure or a filtering assembly is arranged at the communicating part of the upper cavities and the lower cavities; airflow enters the sewage tank from the inlet and is discharged from the outlet after reciprocating back and forth in the upper and lower chambers, and the purpose of gas-water separation is achieved under the action of the filter assembly and the water retaining structure.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, and particularly relates to a gas-water separation sewage tank structure for a floor washer. Background Art

[0002] Gas-water separation of a floor washer is one of its key working links, and its function is to separate the fluid mixed with air, sewage and sundries inhaled during the floor washing process, so as to achieve an efficient cleaning effect.

[0003] Separate the air from the sewage and sundries so as to discharge the clean air, and at the same time collect the sewage and sundries into a special sewage tank for storage, preventing the sewage and sundries from entering key components such as the motor and fan of the floor washer, avoiding damage to these components, and ensuring the normal operation and service life of the floor washer. In addition, through effective gas-water separation, it can be ensured that the suction system of the floor washer always maintains a good working state, can continuously and stably suck the sewage and sundries on the ground, and improve the cleaning efficiency and quality.

[0004] The existing gas-water separation of floor washers usually adopts physical separation methods. Common ones include cyclone separation technology, that is, using the centrifugal force generated by the high-speed rotation of the air flow in the cyclone separator, making the heavier sewage and sundries be thrown towards the inner wall of the separator under the action of centrifugal force, and flowing along the inner wall into the sewage tank, while the lighter air forms an upward air flow in the central part and is discharged through a special channel.

[0005] However, for a floor washer with a sewage tank arranged in the cleaning module (i.e., the floor brush assembly), the effect of using cyclone separation technology to achieve gas-water separation is not ideal. Its effect is closely related to the suction force and the shape, size and internal flow channel design of the cyclone separator; moreover, affected by the installation position of the sewage tank, the layout space of the cyclone separation structure in this type of sewage tank occupies a large area, ultimately affecting the overall structure of the floor brush assembly of the floor washer. Summary of the Utility Model

[0006] The problem to be solved by the utility model is to provide a gas-water separation sewage tank structure for a floor washer. The inner cavity of the sewage tank is divided into upper and lower two-layer cavities by a gas-water separation plate, and multiple chambers are arranged in each cavity. By using the staggered arrangement of the space structure, the air flow continuously turns back in the air flow channel between the inlet and the outlet, so as to achieve the purpose of gas-water separation.

[0007] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0008] A gas-water separation sewage tank structure for a floor washer, comprising a box body and an inlet and an outlet which are arranged on the box body and communicated with each other. A box cover is installed on the top of the box body. A gas-water separation plate is arranged inside the box body, and the gas-water separation plate divides the inner cavity formed by enclosing the box body and the box cover into upper and lower two-layer cavities;

[0009] A plurality of upper chambers and lower chambers are respectively arranged in the upper and lower two-layer cavities. The upper chambers and the lower chambers are both located in the air flow channel connecting the inlet and the outlet. They are arranged in a staggered manner and are connected in series and folded back in sequence. And a filtering component or a water retaining structure is arranged at the connection of the upper chamber and the lower chamber.

[0010] Optionally, the upper chambers are respectively a solid-liquid separation chamber, a gas-liquid buffer chamber, a gas-liquid separation chamber and a gas buffer chamber; the lower chambers are respectively a liquid storage chamber, a liquid sedimentation chamber and a gas purification chamber. The inlet is communicated with the solid-liquid separation chamber, and the outlet is communicated with the gas buffer chamber.

[0011] Optionally, a separation component for solid-liquid separation is arranged in the solid-liquid separation chamber. The solid-liquid separation chamber is communicated with the liquid storage chamber through the separation component. And the liquid storage chamber, the gas-liquid buffer chamber, the liquid sedimentation chamber, the gas-liquid separation chamber and the gas purification chamber are connected in series through the water retaining structure in sequence. The gas purification chamber is communicated with the gas buffer chamber through the filtering component.

[0012] Optionally, an inlet air duct is further arranged in the upper-layer cavity. One end of the inlet air duct is communicated with the inlet, and the other end is communicated with the solid-liquid separation chamber. And a water retaining plate for water retaining is arranged between the inlet air duct and the solid-liquid separation chamber.

[0013] Optionally, the separation component adopts a solid-liquid separation plate or / and a replaceable filter bag.

[0014] Optionally, a detection component for water level detection is installed on the side wall of the liquid storage chamber.

[0015] Optionally, the upper chambers and the lower chambers are provided with a flow disturbing structure along the side walls, which can change the air flow direction.

[0016] Optionally, the rear end of the box cover is rotatably connected with the box body. The front end of the box cover is connected with the box body through a flip-up lock, and the lock is installed on the box body.

[0017] Optionally, a main machine air duct is opened on the box body. One end of the main machine air duct is communicated with the outlet, and the chamber or air duct communicated between the main machine air duct and the inlet is horizontally distributed.

[0018] Optionally, a sealing ring is provided on the outer side of the air-water separation plate, and the water-blocking structure adopts a water-blocking grid.

[0019] Beneficial effects

[0020] (1) The air-water separation plate in the present utility model can divide the inner cavity of the sewage tank into upper and lower two-layer cavities. A plurality of chambers are provided in both layers of cavities. Each chamber is arranged in a staggered manner by using a spatial structure, and the upper and lower chambers are communicated in a folded manner in sequence. The air flow enters the sewage tank from the inlet, reciprocates and folds in the upper and lower chambers and then exits from the outlet. By using the reciprocating collision and under the action of the water-blocking structure and the filtering component, the purpose of air-water separation is achieved; compared with the existing air-water separation structure, this structure not only occupies less space, but also has a better separation effect.

[0021] (2) A separation component is provided in the solid-liquid separation chamber of the present utility model. The separation component can intercept solid garbage and only allow the gas-liquid fluid to pass through. Therefore, the sewage generated by floor washing can pass through the separation component together with the air flow to the liquid storage chamber, thereby realizing solid-liquid separation; then the air flow enters the gas-liquid buffer chamber upward for subsequent air-water separation, and most of the sewage is left in the liquid storage chamber for storage.

[0022] (3) A detection component is provided in the liquid storage chamber of the present utility model, which can detect the liquid level in the chamber to achieve the function of water full warning, and avoid the sewage therein from entering other chambers and affecting the air-water separation effect. Description of the drawings

[0023] Figure 1 is the structural schematic diagram of the air-water separation sewage tank structure for a floor washer in an embodiment of the present utility model;

[0024] Figure 2 is the top view structural schematic diagram of the air-water separation sewage tank structure for a floor washer in an embodiment of the present utility model;

[0025] Figure 3 is Figure 2 the sectional structural schematic diagram of the A-A section in

[0026] Figure 4 is Figure 2 the sectional structural schematic diagram of the B-B section in

[0027] Figure 5 is Figure 2 the sectional structural schematic diagram of the C-C section in

[0028] Figure 6 is the structural schematic diagram of the air-water separation path in an embodiment of the present utility model;

[0029] Figure 7 is the structural schematic diagram of the filter bag in an embodiment of the present utility model;

[0030] Among them, 1. box body; 101. lock catch; 102. detection component; 103. partition wall;

[0031] 2. air-water separation plate; 201. sealing ring; 202. inlet air duct; 203. water baffle; 204. first through hole; 205. second through hole; 206. water baffle rib;

[0032] 3. box cover; 4. inlet; 5. outlet; 501. main air duct;

[0033] 61. solid-liquid separation chamber; 62. liquid storage chamber; 63. gas-liquid buffer chamber; 64. liquid sedimentation chamber; 65. gas-liquid separation chamber; 66. gas purification chamber; 67. gas buffer chamber;

[0034] 7. water baffle grid; 8. solid-liquid separation plate; 9. filter bag; 10. filter component. Detailed implementation mode

[0035] Now, the present utility model will be further described in detail with reference to the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0036] As Figures 1 - 6 shown, a structure of an air-water separation sewage tank for a floor washer includes a box body 1, an air-water separation plate 2, and a box cover 3. An inlet 4 and an outlet 5 are provided on the box body 1. The box cover 3 is installed on the top of the box body 1, and an inner cavity communicating with the inlet 4 and the outlet 5 is formed between the two. That is, air flow enters the inner cavity from the inlet 4 and then is discharged through the outlet 5. The air-water separation plate 2 is arranged inside the box body 1 and divides the inner cavity into upper and lower two-layer cavities.

[0037] A plurality of upper chambers are arranged in the upper cavity, and a plurality of lower chambers are arranged in the lower cavity. Moreover, the projection ranges of the upper chambers or / and the lower chambers on any surface of the sewage tank can either overlap or not overlap, that is, each chamber is arranged in a staggered manner using the spatial structure, and the projection ranges on any surface can either overlap or not overlap.

[0038] Since both the upper and lower chambers are located in the inner cavity, and the inner cavity is communicated with the inlet 4 and the outlet 5, the upper and lower chambers are both located in the air flow channel connecting the inlet 4 and the outlet 5, and the upper and lower chambers are connected in series and folded back in sequence, that is, one of the upper chambers is connected to one of the lower chambers, and this lower chamber is simultaneously connected to another upper chamber, and so on, reciprocating up and down and folding back, and connected in series in sequence.

[0039] A water-blocking structure or a filtering component 10 is provided at the connection between the upper chamber and the lower chamber, and both the water-blocking structure and the filtering component 10 are arranged on the air-water separation plate 2; the water-blocking structure adopts a water-blocking grid 7, which is a frame structure composed of plate members arranged at a certain interval, with gaps of a certain shape. Airflow can pass through the gaps and can also collide with the plate members, and the water-blocking grid 7 and the air-water separation plate 2 are integrally connected.

[0040] As described above, the airflow enters the sewage tank from the inlet 4, reciprocates and turns back in the upper and lower chambers, and then is discharged from the outlet 5. During this process, the water vapor mixed in the airflow collides with the water-blocking structure and the inner walls of each chamber. Among them, the water vapor will condense into droplets and will drip along the side wall or directly under the action of gravity, so as to achieve the purpose of air-water separation; the filtering component 10 adopts existing technologies such as HEPA, and is fixed at the end of the air duct of the air-water separation plate 2, playing a role in filtering water vapor and sundries, and reducing secondary pollution.

[0041] In addition, a main machine air duct 501 is provided on the box body 1. One end of the main machine air duct 501 is communicated with the outlet 5, and the other end is communicated with the vacuum motor of the floor washer. That is, the negative pressure generated by the vacuum motor is transmitted along the main machine air duct 501 through the outlet 5 to the inner cavity, and then sequentially transmitted to the inlet 4 through the various chambers connected in series in the inner cavity to adsorb the sewage.

[0042] Among them, the chamber or air duct communicating between the main machine air duct 501 and the inlet 4 is horizontally distributed, that is, the space between the main machine air duct 501 and the inlet 4 is separated and arranged by using the horizontal space. Compared with the existing structure in which the inlet and outlet are arranged longitudinally or axially, the horizontal arrangement can make the space structure more compact and have a high utilization rate.

[0043] Embodiment 1

[0044] As Figures 1 - 7 shown, there are four upper chambers, namely a solid-liquid separation chamber 61, a gas-liquid buffer chamber 63, a gas-liquid separation chamber 65 and a gas buffer chamber 67; there are three lower chambers, namely a liquid storage chamber 62, a liquid sedimentation chamber 64 and a gas purification chamber 66, and the inlet 4 is communicated with the solid-liquid separation chamber 61, and the outlet 5 is communicated with the gas buffer chamber 67.

[0045] That is, under the action of negative pressure, the sewage first enters the solid-liquid separation chamber 61 from the inlet 4 for solid-liquid separation. After the separated airflow passes through the other chambers in turn for air-water separation, until it enters the gas buffer chamber 67, the air-water separation is completed, and then it is discharged from the outlet 5 along the main machine air duct 501 out of the sewage tank.

[0046] As described above, a separation component for solid-liquid separation is provided in the solid-liquid separation chamber 61. The solid-liquid separation chamber 61 is communicated with the liquid storage chamber 62 through the separation component. The separation component can adopt existing solid-liquid separation technologies such as a solid-liquid separation plate 8 or / and a replaceable filter bag 9. It can intercept solid garbage in the sewage in the solid-liquid separation chamber 61, while the sewage settles through the separation component under the action of gravity into the liquid storage chamber 62 for storage. Among them, the separation component is fixed on the gas-water separation plate 2 through detachable structures such as buckles and chutes to play the role of separating solid-liquid garbage, and it is convenient for quick replacement and cleaning.

[0047] Among them, the liquid storage chamber 62, the gas-liquid buffer chamber 63, the liquid sedimentation chamber 64, the gas-liquid separation chamber 65 and the gas purification chamber 66 are sequentially connected in series and communicated through a water-blocking structure, while the gas purification chamber 66 is communicated with the gas buffer chamber 67 through a filter component 10. And the solid-liquid separation plate 8 and the filter bag 9 can be used together or separately. Here, the filter bag 9 is a consumable and can be quickly replaced.

[0048] Furthermore, an inlet air duct 202 is also provided in the upper cavity. One end of the inlet air duct 202 is communicated with the inlet 4 and the other end is communicated with the solid-liquid separation chamber 61, and a water-blocking plate 203 for blocking water is provided between the inlet air duct 202 and the solid-liquid separation chamber 61.

[0049] One end of the water-blocking plate 203 is rotatably connected to the gas-water separation plate 2 through a rotating shaft, and the other end can rotate around the axis of the rotating shaft. And a torsion spring is provided on the rotating shaft, which interacts with the gas-water separation plate 2, so that the water-blocking plate 203 can close the communication channel between the inlet air duct 202 and the solid-liquid separation chamber 61 in the initial state, and under the action of negative pressure, the water-blocking plate 203 flips to the side of the solid-liquid separation chamber 61, thereby connecting the inlet air duct 202 and the solid-liquid separation chamber 61.

[0050] Here, the function of the water-blocking plate 203 is equivalent to a one-way valve, which only allows external sewage to enter the sewage tank and does not allow the internal sewage to flow out along the inlet air duct 202. Through this structure, the reverse outflow of the sewage inside the liquid storage chamber 62 is effectively avoided.

[0051] In addition, a detection component 102 for water level detection is installed on the side wall of the liquid storage chamber 62. The detection component 102 can adopt existing technologies such as a float. Its function is to detect whether the liquid storage chamber 62 is full of water. When it is full of water, it can send a warning signal to remind the user to pour it out to avoid over-suction or water overflow in the water tank. Among them, the side wall of the liquid storage chamber 62 includes all inner side surfaces of up, down, front, back, left and right, that is, the detection component 102 can be arbitrarily installed in the liquid storage chamber 62.

[0052] The gas-water separation path is as follows: the inlet 4 of the sewage tank → the solid-liquid separation chamber 61 → the liquid storage chamber 62 → the gas-liquid buffer chamber 63 → the liquid sedimentation chamber 64 → the gas-liquid separation chamber 65 → the gas purification chamber 66 → the gas buffer chamber 67 → the outlet 5 of the sewage tank.

[0053] The gas mixed with solid / liquid garbage enters the sewage tank from the inlet 4 and enters the solid-liquid separation chamber 61 along the inlet air duct 202 for solid-liquid separation; after the solid-liquid separation is completed, the gas mixed with the liquid flows into the liquid storage chamber 62, and the liquid stays in the liquid storage chamber 62, while the gas mixed with part of the liquid enters the gas-liquid buffer chamber 63 upward, and the initial gas-liquid separation is completed during the collision with the water retaining grid 7; the gas mixed with part of the liquid after the initial separation enters the liquid sedimentation chamber 64, and the main function of this chamber is to collect the liquid separated from the gas-liquid buffer chamber 63; then the gas mixed with a small amount of liquid enters the gas-liquid separation chamber 65 to promote further gas-liquid separation; the gas mixed with fine water droplets after further separation enters the gas purification chamber 66, and then passes through the filter assembly 10 into the gas buffer chamber 67. The filter assembly 10 mainly collects the liquid separated in the gas-liquid separation chamber 65 and filters out other solid impurities entrained in the gas; the purified air completes the gas-water separation and enters the gas buffer chamber 67, which is connected to the outlet 5 of the sewage tank, and the gas enters the air duct through the outlet 5 of the sewage tank and is discharged.

[0054] Embodiment 2

[0055] As Figures 1 - 6 shown, on the basis of Embodiment 1, the upper chamber and the lower chamber are provided with a flow disturbance structure along the side wall that can change the airflow direction; through the flow disturbance structure, the turbulence degree of the airflow can be increased, thereby promoting the gas-water separation effect.

[0056] The flow disturbance structure includes structures such as water retaining ribs 206, fences, and partitions, which are used for the chambers of gas-water separation and are arranged along each side wall in the airflow direction; and there is a certain distance X reserved between the edge of the flow disturbance structure and the side wall of each chamber. The range of the set value of this distance is: 0 ≤ X ≤ the outermost edge dimension of the box body 1. Based on the set distance X, it is possible to prevent the airflow from secondarily carrying the separated liquid during the flow process.

[0057] Embodiment 3

[0058] On the basis of Embodiment 1 and Embodiment 2, the present invention also proposes a connection structure between the box cover 3, the gas-water separation plate 2 and the box body 1.

[0059] As Figures 1 - 4As shown, the rear end of the box cover 3 is rotatably connected to the box body 1 through a pin shaft, that is, the box cover 3 can be flipped around the axis of the pin shaft. The front end of the box cover 3 is connected to the box body 1 through a lock 101, and the lock 101 is also rotatably installed on the box body 1 through a pin shaft. As the lock 101 flips, the fixing or releasing of the box cover 3 can be realized, thus facilitating the opening and closing between the box cover 3 and the box body 1.

[0060] The inner side of the box body 1 is divided into different partitions by the staggered partition walls 103 in the lower cavity. Here, the partition walls 103 can not only play a role in separation, but also play a role in supporting the gas-liquid separation plate 2, that is, the bottom of the gas-liquid separation plate 2 is in sealed contact with the partition walls 103, and a sealing ring 201 is arranged on the outer side of the gas-liquid separation plate 2, which cooperates with the inner wall of the box body 1 to play a sealing role to prevent sewage from flowing out; in addition, when pouring sewage, only need to open the box cover 3 and take out the gas-liquid separation plate 2 from the box body 1.

[0061] Similarly, the gas-liquid separation plate 2 is also provided with staggered partitions to divide the upper cavity into different partitions, and the top ends of the partitions are in sealed contact with the bottom end of the box cover 3.

[0062] In addition, a first through hole 204 and a second through hole 205 are opened on the gas-liquid separation plate 2. The inlet 4 of the sewage tank is arranged at the bottom of the box body 1, and its upper end extends upward and is communicated with the inlet air duct 202 through the first through hole 204. The main air duct 501 is arranged on the back side of the box body 1. One end of the outlet 5 is communicated with the main air duct 501, and the other end is communicated with the gas buffer chamber 67 through the second through hole 205.

[0063] To sum up, the sewage tank structure proposed by the present utility model has a sealed cooperation among the box cover 3, the gas-liquid separation plate 2 and the box body 1, divides the inner cavity into upper and lower layers, and each layer is divided into multiple chambers. Then, by using the staggered arrangement of the spatial structure, the purposes of solid-liquid separation and gas-liquid separation are achieved; compared with the existing separation structure, this structure can achieve better gas-liquid separation effect and occupies less space.

[0064] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0065] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0066] Based on the inspiration of the ideal embodiments of the present utility model as above, through the above description, relevant personnel can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A gas-water separation sewage tank structure for a floor washer, characterized in that: It includes a box body (1), as well as an inlet (4) and an outlet (5) which are arranged on the box body (1) and communicate with each other. A box cover (3) is installed on the top of the box body (1). An air-water separation plate (2) is arranged inside the box body (1), and the air-water separation plate (2) divides the inner cavity formed by enclosing the box body (1) and the box cover (3) into upper and lower two-layer cavities; A plurality of upper chambers and lower chambers are respectively arranged in the upper and lower two-layer cavities. The upper chambers and the lower chambers are both located in the air flow channel connecting the inlet (4) and the outlet (5). They are arranged in a staggered manner and are connected in series and folded back in sequence. A filtering component (10) or a water blocking structure is arranged at the connection of the upper chambers and the lower chambers.

2. The air-water separation sewage tank structure for a floor washer according to claim 1, wherein: The upper chambers are respectively a solid-liquid separation chamber (61), a gas-liquid buffer chamber (63), a gas-liquid separation chamber (65) and a gas buffer chamber (67); the lower chambers are respectively a liquid storage chamber (62), a liquid sedimentation chamber (64) and a gas purification chamber (66). The inlet (4) is connected to the solid-liquid separation chamber (61), and the outlet (5) is connected to the gas buffer chamber (67).

3. The air-water separation sewage tank structure for a floor washer according to claim 2, characterized in that: A separation component for solid-liquid separation is arranged in the solid-liquid separation chamber (61). The solid-liquid separation chamber (61) is connected to the liquid storage chamber (62) through the separation component. The liquid storage chamber (62), the gas-liquid buffer chamber (63), the liquid sedimentation chamber (64), the gas-liquid separation chamber (65) and the gas purification chamber (66) are connected in series through the water blocking structure in sequence. The gas purification chamber (66) is connected to the gas buffer chamber (67) through the filtering component (10).

4. The air-water separation sewage tank structure of the floor washer according to claim 2, characterized in that: An inlet air duct (202) is also arranged in the upper layer cavity. One end of the inlet air duct (202) is connected to the inlet (4), and the other end is connected to the solid-liquid separation chamber (61). A water blocking plate (203) for blocking water is arranged between the inlet air duct (202) and the solid-liquid separation chamber (61).

5. The structure of the air-water separation sewage tank for the floor washer according to claim 3, characterized in that: The separation component adopts a solid-liquid separation plate (8) or / and a replaceable filter bag (9).

6. The air-water separation sewage tank structure for a floor washer according to claim 2, wherein: A detection component (102) for water level detection is installed on the side wall of the liquid storage chamber (62).

7. The air-water separation sewage tank structure for a floor washer according to claim 1, characterized in that: The upper chambers and the lower chambers are provided with a flow disturbing structure along the side wall that can change the air flow direction.

8. The air-water separation sewage tank structure for a floor washer according to claim 1, characterized in that: The rear end of the box cover (3) is rotatably connected to the box body (1). The front end of the box cover (3) is connected to the box body (1) through a flipable lock (101), and the lock (101) is installed on the box body (1).

9. The structure of the air-water separation sewage tank for a floor washer according to claim 1, characterized in that: A main air duct (501) is opened on the box body (1). One end of the main air duct (501) is connected to the outlet (5), and the chamber or air duct connecting the main air duct (501) and the inlet (4) is horizontally distributed.

10. The air-water separation sewage tank structure for a floor washer according to any one of claims 1-9, characterized in that: A sealing ring (201) is arranged outside the air-water separation plate (2). The water blocking structure adopts a water blocking grid (7).

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