Floor washing machine capable of lying flat
By installing a horizontally extending detection electrode at the lower end of the probe, the difficulty of water level detection when the floor scrubber is lying flat is solved, enabling flexible setting of the safe water level and supporting product updates.
Patent Information
- Application Number
- CN202520398099.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-10
AI Technical Summary
The existing floor scrubbers require a redesign of the water level detection structure in the wastewater tank when lying flat, making product updates difficult.
A horizontally extending probe is installed at the lower end of the probe to detect the water level in the sewage tank. The probe faces the ground when the main unit is lying down, and its length can be adjusted to set a safe water level.
It enables convenient setting of the safe water level in the lying position without changing the original sewage tank structure, and supports product upgrades.
Smart Images

Figure CN223830994U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of floor scrubbers, specifically a floor scrubber that can lie flat. Background Technology
[0002] Floor scrubbers are common household floor cleaning equipment. They combine vacuuming and sweeping with wet mopping, making floor cleaning quick and convenient, and are very popular.
[0003] The floor scrubber includes a main unit and a floor brush. The main unit is equipped with a suction motor and a wastewater tank. The bottom of the wastewater tank is connected to the floor brush, and the top is connected to the suction motor. The suction motor draws in the wastewater tank to create negative pressure, which in turn causes the suction port of the floor brush to suck the dirt from the floor into the wastewater tank for temporary storage.
[0004] To facilitate cleaning under furniture, the main unit and the floor brush are pivotally connected and rotate relative to each other. The main unit can tilt towards the ground using the floor brush as a base point and lie flat. The water level in the wastewater tank on the main unit will change as the center of gravity of the main unit tilts. Furthermore, when the main unit is lying flat, the positional relationship of the various components in the wastewater tank changes, so the safety water level also needs to be reset. If the probe position is changed directly, the original wastewater tank structure will need to be redesigned, which is not conducive to product upgrades. Summary of the Invention
[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a floor scrubbing machine that can lie flat.
[0006] The technical solution adopted by this utility model to solve its technical problem is:
[0007] A floor scrubber that can lie flat includes a main unit and a floor brush. The floor brush is pivotally connected to the bottom of the main unit, and a handle is also connected to the top of the main unit. The main unit can rotate towards the ground with the floor brush as a base point. The main unit is equipped with a suction device and a wastewater tank. The wastewater tank includes a wastewater storage tank and a filter cartridge cover that closes the top of the wastewater storage tank. The filter cartridge cover is provided with a suction port that connects to the suction device of the floor scrubber. A filter cartridge is installed in the suction port. The filter cartridge cover is also provided with a water level electrode. The water level electrode has two locations, and a probe that penetrates into the wastewater storage tank is connected below the water level electrode. A detection electrode is installed at the lower end of the probe. The extension axis of the detection electrode intersects the axis of the probe, and the detection electrode is arranged facing the ground when the main unit is lying flat.
[0008] The bottom of the filter element cover is provided with a probe tube that extends into the sludge storage tank. The probe is inserted into the probe tube and the bottom of the probe extends out of the probe tube to form a detection section. The detection electrode is installed on the detection section.
[0009] The probe has a mounting groove on its lower end sidewall, and the probe electrode has a sleeve at one end that is embedded in the mounting groove.
[0010] A notch is formed in the bottom sidewall of the probe tube, the detection section of the probe passes through the notch and is exposed inside the sludge storage tank, and the detection electrode passes through the bottom sidewall of the probe tube and is exposed inside the sludge storage tank.
[0011] The sludge storage tank is equipped with a dust and sludge pipe that connects the inside and outside. The inlet of the dust and sludge pipe is located at the bottom of the sludge storage tank and connects to the dust suction port of the floor scrubber. The outlet of the dust and sludge pipe connects to the inside of the sludge storage tank and is located at the top of the sludge storage tank. The bottom of the filter cover extends downward to form a water baffle, which covers the outlet of the dust and sludge pipe. The suction port is located above the water baffle, and the water baffle has a ventilation opening on the side to connect the suction port with the inside of the sludge storage tank. The two probe tubes are arranged outside the water baffle and are located on both sides of the water baffle.
[0012] The probe tube extends to form a filter cake baffle, one side of which is connected to the side wall of the water baffle, and the other side abuts against the inner wall of the sludge storage tank.
[0013] A filter cake cover is installed at the lower end of the probe tube. The top of the filter cake cover is connected to the filter cake baffle. The two sides of the filter cake cover abut against the side wall of the water baffle and the inner wall of the sludge storage tank, respectively. The inner side of the filter cake cover is bent to form an air-proof cavity. The detection section of the probe is located in the air-proof cavity.
[0014] A sealing seat is installed below the water baffle, and the outer periphery of the sealing seat seals against the inner wall of the sludge storage tank. The filter cake extends from the top of the sealing seat.
[0015] The beneficial effects of this utility model are as follows: This utility model installs a relatively laterally extending detection electrode at the lower end of the probe, and the detection electrode extends towards the ground when the main unit is lying down. The detection electrode detects the water level in the waste tank when the main unit is lying down. The detection electrode is easy to process and adjust the extension length, which makes it convenient for different floor scrubbing machine products to set the safe water level when lying down. The original waste tank structure does not need to be modified, which is conducive to product upgrading. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the main unit of this utility model when it is lying flat.
[0019] Figure 3 This is a structural schematic diagram of the sewage tank of this utility model;
[0020] Figure 4 This is a disassembled schematic diagram of the sewage tank of this utility model;
[0021] Figure 5 yes Figure 4 Enlarged view of point A. Detailed Implementation
[0022] Reference Figures 1 to 5 A floor scrubbing machine includes a main unit 100 and a floor brush 200. The floor brush 200 is pivotally connected to the bottom of the main unit 100, and a handle 300 is also connected to the top of the main unit 100. The user can hold the handle 300 to push the main unit 100 and drive the floor brush 200 to clean the floor. When cleaning the space under furniture (such as the bottom of tables, chairs, sofas, etc.), the main unit 100 can rotate and tilt towards the ground or even lie flat relative to the ground with the floor brush 200 as the base point, thereby changing the height of the machine to enter the space under the furniture for cleaning.
[0023] The main unit 100 is equipped with a suction device 102 and a wastewater tank 101. The wastewater tank 101 includes a wastewater storage tank 1 and a filter element cover 2 that closes the top of the wastewater storage tank 1. The filter element cover 2 has a suction port 21 that connects to the suction device 102 of the floor scrubber. A filter element 3 is installed inside the suction port 21. A water level electrode 22 is also arranged on the filter element cover 2. There are two water level electrodes 22, and a probe 4 that penetrates into the wastewater storage tank 1 is connected below the water level electrode 22. The bottom of the filter element cover 2 is provided with a probe tube 23 that extends into the wastewater storage tank 1. The probe 4 is inserted into the probe tube 23, and the bottom of the probe 4 extends out of the probe tube 23 to form a detection section. The sludge storage tank 1 is equipped with a dust and sludge pipe 11 that connects the inside and outside. The inlet of the dust and sludge pipe 11 is located at the bottom of the sludge storage tank 1 and connects to the dust suction port of the floor brush 200 of the floor scrubber. The outlet of the dust and sludge pipe 11 connects to the inside of the sludge storage tank 1 and is located at the top of the sludge storage tank 1. The bottom of the filter cover 2 extends downward to form a water baffle 24. The water baffle 24 covers the outlet of the dust and sludge pipe 11. The suction port 21 is located above the water baffle 24, and the water baffle 24 has a ventilation port 25 on the side so that the suction port 21 connects to the inside of the sludge storage tank 1. The two probe tubes 23 are arranged outside the water baffle 24 and are located on both sides of the water baffle 24. A sealing seat 27 is installed below the water baffle 24. The outer periphery of the sealing seat 27 seals against the inner wall of the sludge storage tank 1, dividing the sludge storage tank into a suction chamber and a sludge storage chamber. The suction flow sequence is: dust pipe 11 - water baffle 24 - vent 25 - sludge storage chamber of the sludge storage tank. A filter cake baffle 26 extends from the side wall of the probe tube 23. One side of the filter cake baffle 26 is connected to the side wall of the water baffle 24, and the other side abuts against the inner wall of the sludge storage tank 1. A filter cake cover 28 is installed at the lower end of the probe tube 23. The filter cake cover 28 extends from the top of the sealing seat 27. The top of the filter cake cover 28 is joined with the filter cake baffle 26. The two sides of the filter cake cover 28 abut against the side wall of the water baffle 24 and the inner wall of the sludge storage tank 1, respectively. The inner side of the filter cake cover 28 is bent to form a cavity. The detection section of the probe is located in the cavity, which prevents the sewage drawn in from the dust pipe due to the negative pressure in the tank from directly splashing and contacting the probe 4. The cavity can also be filled with enough water to ensure that the detection section is completely immersed and triggers the electrode connection.
[0024] A detection electrode 5 is installed at the lower end of the probe 4. Specifically, the detection electrode 5 is installed on the detection section. The extension axis of the detection electrode 5 intersects the probe axis, that is, the detection electrode 5 extends laterally relative to the probe, and when the main unit 100 is lying down, the detection electrode 5 is arranged facing the ground. The detection electrode 5 detects the water level in the sludge tank when the main unit 100 is lying down. The safe water level in the sludge tank when the main unit 100 is lying down should be lower than the bottom of the suction port 21 of the sludge tank 101 when it is lying down. On the other hand, since the detection electrode 5 is a separately manufactured component, it is easy to process and adjust its extension length, which makes it convenient to set the safe water level when lying down for different floor scrubbing machine products. The original structure of the sludge tank 101 does not need to be modified, which is conducive to product upgrading. The lower end side wall of the probe 4 is provided with a mounting groove 42. One end of the detection electrode 5 is provided with a sleeve 51 which is embedded in the mounting groove 42, so that the detection electrode 5 is fixed on the probe 4.
[0025] A notch 231 is formed on the bottom sidewall of the probe tube 23. The detection section of the probe 4 passes through the notch 231 and is exposed inside the sludge tank 1. The detection electrode 5 passes through the bottom sidewall of the probe tube 23 and is exposed inside the sludge tank 1. At this time, the probe tube 23 clearly separates two detection positions. When the main unit 100 is in a vertical or tilted state, the water level is below the bottom of the probe tube 23, and the water level in the sludge tank 101 is detected by the detection section. When the main unit 100 is in a horizontal state, the water level is below the side of the probe tube 23, and the water level in the sludge tank 101 is detected by the detection electrode 5.
Claims
1. A floor scrubber that can lie flat, comprising a main unit (100) and a floor brush (200), wherein the floor brush (200) is pivotally connected to the bottom of the main unit (100), and a handle (300) is also connected to the top of the main unit (100). The main unit (100) can rotate towards the ground with the floor brush (200) as a base point. The main unit (100) is provided with a suction device (102) and a wastewater tank (101), wherein the wastewater tank (101) includes a wastewater storage tank (…). 1) A filter element cover (2) with an open top of the sludge storage tank (1), wherein the filter element cover (2) is provided with a suction port (21) that connects to the suction device (102) of the floor scrubber, and a filter element (3) is installed inside the suction port (21). A water level electrode (22) is also provided on the filter element cover (2), wherein the water level electrode (22) has two locations, and a probe (4) that penetrates into the sludge storage tank (1) is connected below the water level electrode (22). The feature is that: The probe (4) is equipped with a probe electrode (5) at its lower end. The extension axis of the probe electrode (5) intersects with the probe axis, and the probe electrode (5) is arranged facing the ground when the host (100) is lying down.
2. The floor scrubber according to claim 1, characterized in that: The bottom of the filter cover (2) is provided with a probe tube (23) that extends into the sludge storage tank (1). The probe (4) is inserted into the probe tube (23) and the bottom of the probe (4) extends out of the probe tube (23) to form a detection section. The detection electrode (5) is installed on the detection section.
3. The floor scrubbing machine according to claim 2, characterized in that: The probe (4) has a mounting groove (42) on its lower end side wall, and the probe electrode (5) has a sleeve (51) at one end that is embedded in the mounting groove (42).
4. The floor scrubber according to claim 2, characterized in that: The probe tube (23) has a notch (231) formed on the bottom sidewall. The detection section of the probe (4) passes through the notch (231) and is exposed inside the sludge storage tank (1). The detection electrode (5) passes through the bottom sidewall of the probe tube (23) and is exposed inside the sludge storage tank (1).
5. The floor scrubber according to claim 2, 3, or 4, characterized in that: The sludge storage tank (1) is equipped with a dust and sludge pipe (11) that connects the inside and outside. The inlet of the dust and sludge pipe (11) is located at the bottom of the sludge storage tank (1) and is connected to the dust suction port of the floor brush (200) of the floor scrubber. The outlet of the dust and sludge pipe (11) is connected to the inside of the sludge storage tank (1) and is located at the top of the sludge storage tank (1). The bottom of the filter cover (2) extends downward to form a water baffle (24). The water baffle (24) covers the outlet of the dust and sludge pipe (11) inside. The suction port (21) is located above the water baffle (24) and the water baffle (24) has a ventilation port (25) opened on the side so that the suction port (21) is connected to the inside of the sludge storage tank (1). The two probe tubes (23) are arranged outside the water baffle (24) and are located on both sides of the water baffle (24).
6. The floor scrubber according to claim 5, characterized in that: The probe tube (23) extends to form a filter cake baffle (26) on its sidewall. One side of the filter cake baffle (26) is connected to the sidewall of the water shield (24), and the other side abuts against the inner wall of the sludge storage tank (1).
7. The floor scrubber according to claim 6, characterized in that: The lower end of the probe tube (23) is equipped with a filter cake cover (28). The top of the filter cake cover (28) is joined with the filter cake baffle (26). The two sides of the filter cake cover (28) are respectively in contact with the side wall of the water baffle (24) and the inner wall of the sludge storage tank (1). The inner side of the filter cake cover (28) is bent to form an air-proof cavity. The detection section of the probe is located in the air-proof cavity.
8. The floor scrubber according to claim 7, characterized in that: A sealing seat (27) is installed below the water baffle (24). The outer periphery of the sealing seat (27) seals against the inner wall of the sludge storage tank (1). The filter cake cover (28) extends from the top of the sealing seat (27).