A sump for a scrubber

Abstract

This utility model discloses a wastewater tank for a floor scrubber, including a tank body and a lid with a closed top opening on the tank body. A partition bracket is provided at the bottom of the lid, extending downwards to the lower part of the tank body with its edge tightly against the inner wall of the tank, vertically dividing the inner cavity of the tank into a first suction area, a second suction area, and a third suction area. The top port of the suction pipe connects to the first suction area and is located above the third suction area. The suction port connects to the upper part of the second suction area, isolating the suction port from the top port of the suction pipe. The first suction area connects to the second suction area through the lower third suction area. The second suction area is always located above the first suction area when the tank body is tilted or lying flat. Wastewater and debris entering through the suction pipe will naturally fall to the bottom of the wastewater tank under gravity. The airflow path is from top to bottom and then upwards, and this path remains unchanged regardless of the tilt angle of the wastewater tank during use, making it difficult for wastewater and debris to be sucked towards the suction port by the airflow.

Description

Technical Field

[0001] This utility model belongs to the field of floor scrubbing machines, specifically a wastewater tank for a floor scrubbing machine. Background Technology

[0002] Today, floor scrubbers are widely used in homes and offices. They consist of a vertical main unit and a floor brush pivotally connected to the bottom of the main unit. The floor brush has a scrubbing roller and a suction port connected to the main unit's suction unit. The suction unit generates suction to remove dust, debris, and wastewater from the floor after the scrubbing roller has cleaned the floor. The suction unit includes a wastewater tank and a suction motor. The suction port is connected to the wastewater tank. The suction motor continuously removes air from the wastewater tank, creating negative pressure. This negative pressure generates suction to draw dust, debris, and wastewater that reaches the suction port of the floor brush into the wastewater tank for temporary storage. After the floor cleaning is complete, the user can perform a final cleaning.

[0003] The current floor scrubber industry has been working to solve the problem of isolating the suction airflow inside the wastewater tank from wastewater and garbage, in order to avoid problems such as garbage clogging the suction duct or wastewater being sucked into the suction motor and causing damage to the suction motor during floor scrubber use. The current solution is simply to install a water baffle at the connection between the wastewater tank and the suction motor to isolate garbage and wastewater. However, the wastewater tank is usually tilted or even lying flat when the floor scrubber is in use. The water level in the wastewater tank will also be close to the connection duct due to the tilted or lying flat position. Even with the water baffle, the suction force generated by the suction motor will inevitably bring the wastewater and garbage floating on the wastewater into the water baffle, clogging the connection duct or even allowing wastewater to enter the motor. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a wastewater tank for a floor scrubbing machine.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A wastewater tank for a floor scrubber includes a tank body and a lid with a closed top opening on the tank body. The lid forms a suction port that connects to the suction motor of the floor scrubber. A filter element is installed inside the suction port. A suction pipe is vertically arranged on the tank body. The top end of the suction pipe connects to the interior of the tank body, and the bottom end penetrates the bottom wall of the tank body to form a wastewater inlet for the floor brush of the floor scrubber. A partition bracket is provided at the bottom of the lid. The partition bracket extends downward to the lower part of the tank body and its edge is close to the inner wall of the tank body, vertically dividing the inner cavity of the tank body into a first suction area, a second suction area, and a third suction area located below the first and second suction areas. The top end of the suction pipe connects to the first suction area and is located above the third suction area. The suction port connects to the upper part of the second suction area. The first suction area is connected to the second suction area through the third suction area below. The second suction area is always located above the first suction area when the tank body is tilted or lying flat.

[0007] The bucket lid has an inner cavity, the suction port is formed at the top of the inner cavity, and the bottom of the inner cavity has a connecting port arranged towards the second suction area and connected to the second suction area inside the bucket.

[0008] The upper side wall of the barrel where the second suction area is located protrudes laterally to form a fourth suction area. The fourth suction area is connected to the second suction area and is arranged in a stepped manner with the second suction area. The opening of the barrel lid is located in the fourth suction area.

[0009] The connecting ports are arranged symmetrically in two locations, and the fourth suction area is also arranged symmetrically in two locations.

[0010] The suction pipe is arranged close to the inner wall of the barrel. The partition bracket is provided with a connecting area that connects to the first suction area. The side of the connecting area is open and a sealing strip is arranged at the open edge. The upper part of the suction pipe is fitted inside the inner wall of the barrel and the top port of the suction pipe is separated from the first suction area and the second suction area.

[0011] The suction pipe is located on the side wall of the barrel where the second suction area is located. The connecting area is open to the side where the second suction area is located. The second suction area is located on the side of the connecting area. The top port of the suction pipe is inserted into the middle of the connecting area. A guide port is provided on the side wall of the connecting area to connect to the first suction area and the guide port is higher than the top port of the suction pipe.

[0012] The bottom of the socket area is connected to the third suction area.

[0013] The sidewall of the socket area is also provided with a plurality of grid holes arranged in a row, which surround the guide port.

[0014] The lower side wall of the partition bracket is provided with multiple ventilation holes that connect the first air intake area and the second air intake area.

[0015] A water-leaking baffle is installed at the bottom of the partition bracket, blocking the bottom of the first air intake area.

[0016] The beneficial effects of this utility model are as follows: This utility model divides the inner cavity of the trash can into a first, second, and third suction area through a partition bracket. The second suction area is always located above the first suction area when the can is tilted or lying down. The first suction area is connected to the second suction area through the third suction area below. The suction port on the lid is connected to the upper part of the second suction area, and the top end of the suction pipe is connected to the first suction area and located above the third suction area, thus isolating the suction port from the top end of the suction pipe. Sewage and garbage entering through the suction pipe will naturally fall to the bottom of the sewage can under the action of gravity. The suction airflow passes through the first suction area and the third suction area in sequence to the upper part of the second suction area and is drawn into the suction port. The airflow path is from top to bottom and then upward, and this path is maintained regardless of the tilt angle of the sewage can during use. Sewage and garbage are difficult to be sucked into the suction port by the airflow, thus solving the problems of the prior art. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a breakdown diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the bucket lid of this utility model;

[0021] Figure 4 This is a structural schematic diagram of the barrel body of this utility model;

[0022] Figure 5 This is a schematic diagram of the front structure of this utility model;

[0023] Figure 6 yes Figure 5 AA section view in the middle;

[0024] Figure 7 yes Figure 5 BB section view in the middle;

[0025] Figure 8 yes Figure 5 CC section view in the middle;

[0026] Figure 9 This is a schematic diagram of the internal structure of this utility model from a first-person perspective;

[0027] Figure 10 This is a schematic diagram of the internal structure of this utility model from a second perspective. Detailed Implementation

[0028] Reference Figures 1 to 10 A wastewater tank for a floor scrubber includes a tank body 1 and a lid 2 that is closed and has an open top on the tank body 1. The lid 2 has a suction port 22 that connects to the suction motor of the floor scrubber. A filter element 3 is installed inside the suction port 22. A suction pipe 11 is vertically arranged on the tank body 1. The top end of the suction pipe 11 connects to the interior of the tank body 1, and the bottom end penetrates the bottom wall of the tank body 1 to form a wastewater inlet 12 connecting to the floor brush of the floor scrubber. A partition bracket 4 is provided at the bottom of the lid 2. The partition bracket 4 extends downward to the lower part of the tank body 1, with its edge tightly against the inner wall of the tank body 1, vertically aligning the inner cavity of the tank body 1. The system is divided into a first suction area 5, a second suction area 6, and a third suction area 7 located below the first and second suction areas. The top port 13 of the suction pipe 11 connects to the first suction area 5 and is located above the third suction area 7. The suction port 22 connects to the upper part of the second suction area 6, thus isolating the suction port 22 from the top port 13 of the suction pipe 11. The first suction area 5 connects to the second suction area 6 through the lower third suction area 7. The second suction area 6 is always located above the first suction area 5 when the bucket 1 is tilted or lying down. Figure 9 As shown, the sewage and garbage entering through the suction pipe 11 will naturally fall to the bottom of the sewage tank under the action of gravity, while the suction airflow will sequentially pass through the first suction area 5, the third suction area 7 and the upper part of the second suction area 6 and be drawn into the suction port 22. The airflow path is from top to bottom and then upward, and this path is maintained regardless of the tilt angle of the sewage tank during use. Sewage and garbage are difficult to be sucked into the suction port 22 by the airflow, thus solving the problem of the prior art.

[0029] As a preferred embodiment of this utility model, the lid 2 has a chamber 21, the suction port 22 is formed on the top of the chamber 21, and the bottom of the chamber 21 is provided with a connecting port 23 arranged towards the second suction area 6 and connected to the second suction area 6 inside the barrel 1, so that the suction port 22 and the chamber 21 of the barrel 1 are connected by a suction channel, and the position of the connection to the inner cavity of the barrel 1 is clearly defined through the port of the suction channel.

[0030] Furthermore, the upper side wall of the barrel 1, where the second suction area 6 is located, protrudes laterally to form the fourth suction area 8. The fourth suction area 8 is connected to the second suction area 6 and is arranged in a stepped manner with the second suction area 6. The connecting opening 23 of the barrel cover 2 is connected to the fourth suction area 8 and is located at the top of the fourth suction area 8, so that the connecting opening 23 is located at a higher position. The stepped arrangement of the fourth suction area 8 and the second suction area 6 adds another bend to the path of the suction airflow. Even if the sewage barrel is violently shaken and the sewage inside the sewage barrel surges, the sewage is unlikely to reach the connecting opening 23.

[0031] Furthermore, two symmetrically arranged connecting ports 23 and two symmetrically arranged fourth suction areas 8 are provided to increase the flow rate of the suction air, thereby generating a stronger negative pressure inside the sewage tank and enhancing the suction power of the floor brush.

[0032] As a preferred embodiment, the suction pipe 11 is arranged close to the inner wall of the barrel 1. The partition bracket 4 is provided with a connecting area 9 that connects to the first suction area 5. The side of the connecting area 9 is open and a sealing strip 41 is arranged at the open edge. The upper part of the suction pipe 11 is fitted inside the inner wall of the barrel 1, and the top port 13 of the suction pipe 11 is separated from the first suction area 5 and the second suction area 6. The semi-open connecting area 9 can more conveniently isolate the top port 13 of the suction pipe 11. Preferably, the suction pipe 11 is located on the side wall of the barrel 1 where the second suction area 6 is located, and the connecting area 9 is open towards the side where the second suction area 6 is located. The second suction area 6 is located on the side of the connecting area 9. This arrangement allows the first and second suction areas to be arranged relatively compactly. The top port 13 of the suction pipe 11 is inserted into the middle of the connecting area 9. A guide port 42 is provided on the side wall of the connecting area 9 to connect to the first suction area 5. The guide port 42 is higher than the top port 13 of the suction pipe 11. The top port 13 of the suction pipe 11 is separated from the first suction area, which can further form an additional layer of airflow path change and reduce the impact force when sewage is discharged from the suction pipe 11, so that the dirt can fall into the lower part of the barrel 1 more naturally.

[0033] Furthermore, the bottom of the connecting area 9 is connected to the third suction area 7, allowing sewage falling along the suction pipe 11 to directly fall below the bucket body 1, preventing water accumulation in the connecting area 9. Preferably, the side wall of the connecting area 9 is also provided with a plurality of grid holes 43 arranged around the guide opening 42. The grid holes 43 facilitate the conductivity between the connecting area 9 and the first suction area 5, allowing the negative pressure inside the bucket body 1 to act more quickly on the suction pipe 11 in the connecting area 9 to generate suction, thereby maintaining good suction performance. In addition, the lower side wall of the partition bracket 4 is also provided with a plurality of vent holes 44 connecting the first suction area 5 and the second suction area 6, which, together with the third suction area 7, realize the flow of the first suction area 5 and the second suction area 6, also to enhance the flow of the suction air and maintain good suction performance.

[0034] As a preferred option, such as Figure 10 As shown, a water-leaking baffle 45 is installed at the bottom of the partition bracket 4, which blocks the bottom of the first suction area 5. This can intercept garbage in the first suction area 5. When cleaning the sewage bucket, the garbage can be cleaned on the water-leaking baffle 45, while the sewage can be poured directly into the sewer, avoiding clogging the sewer. The operation is very convenient.

Claims

1. A wastewater tank for a floor scrubber, comprising a tank body (1) and a tank lid (2) with a closed cover on the top of the tank body (1), wherein a suction port (22) is formed on the tank lid (2) for connection with the suction motor of the floor scrubber, a filter element (3) is installed inside the suction port (22), and a suction pipe (11) is vertically arranged on the tank body (1), the top end of the suction pipe (11) is connected to the interior of the tank body (1), and the bottom end penetrates the bottom wall of the tank body (1) to form a wastewater inlet (12) for connection with the floor brush of the floor scrubber, characterized in that: The bottom of the bucket lid (2) is provided with a partition bracket (4). The partition bracket (4) extends downward to the lower part of the bucket body (1) and its edge is close to the inner wall of the bucket body (1). It vertically divides the inner cavity of the bucket body (1) into a first suction area (5) and a second suction area (6) and a third suction area (7) located below the first and second suction areas. The top port (13) of the suction pipe (11) is connected to the first suction area (5) and located above the third suction area (7). The suction port (22) is connected to the upper part of the second suction area (6). The first suction area (5) is connected to the second suction area (6) through the third suction area (7) below. The second suction area (6) is always located above the first suction area (5) when the bucket body (1) is tilted or lying down.

2. The sewage tank according to claim 1, characterized in that: The lid (2) has a chamber (21), the suction port (22) is formed on the top of the chamber (21), and the bottom of the chamber (21) is provided with a connecting port (23) which is arranged toward the second suction area (6) and connected to the second suction area (6) inside the barrel (1).

3. The sewage tank according to claim 2, characterized in that: The upper side wall of the barrel (1) where the second suction area (6) is located is horizontally protruded to form the fourth suction area (8). The fourth suction area (8) is connected to the second suction area (6) and is arranged in a stepped manner with the second suction area (6). The connecting opening (23) of the barrel cover (2) is located in the fourth suction area (8).

4. The sewage tank according to claim 3, characterized in that: The connecting port (23) is symmetrically arranged in two places, and the fourth suction area (8) is also symmetrically arranged in two places.

5. The sewage tank according to claim 1, characterized in that: The suction pipe (11) is arranged close to the inner wall of the barrel (1). The partition bracket (4) is provided with a connecting area (9) that connects to the first suction area (5). The side of the connecting area (9) is open and a sealing strip (41) is arranged on the open edge. The upper part of the suction pipe (11) is fitted inside the inner wall of the barrel (1), and the top port (13) of the suction pipe (11) is separated from the first suction area (5) and the second suction area (6).

6. The sewage tank according to claim 5, characterized in that: The suction pipe (11) is located on the side wall of the barrel (1) where the second suction area (6) is located. The connecting area (9) is open to the side where the second suction area (6) is located. The second suction area (6) is located on the side of the connecting area (9). The top port (13) of the suction pipe (11) is inserted into the middle of the connecting area (9). A guide port (42) is provided on the side wall of the connecting area (9) to connect to the first suction area (5), and the guide port (42) is higher than the top port (13) of the suction pipe (11).

7. The sewage tank according to claim 6, characterized in that: The bottom of the socket area (9) is connected to the third suction area (7).

8. The sewage tank according to claim 6, characterized in that: The side wall of the socket area (9) is also provided with a plurality of grid holes (43) arranged in a row, and the plurality of grid holes (43) are arranged around the guide port (42).

9. The sewage tank according to claim 6, characterized in that: The partition bracket (4) has multiple ventilation holes (44) on its lower side wall, which connect the first suction area (5) and the second suction area (6).

10. The sewage tank according to claim 1, characterized in that: The bottom of the partition bracket (4) is equipped with a water leakage baffle (45) which blocks the bottom of the first air suction area (5).

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