Sewage bucket structure of scrubber

Abstract

The sewage barrel structure comprises a sewage storage barrel and a filter element cover covering an opening in the top of the sewage storage barrel, water level electrodes and a suction opening in butt joint with a suction device of the scrubber are arranged on the filter element cover, a filter element is installed in the suction opening, the water level electrodes are provided with two positions and are connected with probes penetrating into the sewage storage barrel, and the probes penetrate into the sewage storage barrel. A probe tube extending into the dirt storage barrel is arranged at the bottom of the filter element cover, the probe is connected into the probe tube in a penetrating mode, the bottom of the probe penetrates out of the probe tube to form a detection section, the wall face of the probe tube is coated with a nanometer waterproof coating, and / or the surface, above the detection section, of the probe is coated with a nanometer waterproof coating, and the nanometer waterproof coating is coated with a waterproof coating. The nanometer waterproof coating can effectively reduce the situation that water spots remain on the probe tube and the probe to form a water film to cause conduction of the water level electrode, then the situation that sewage full water level detection is triggered by mistake is avoided, the nanometer waterproof coating is directly wrapped so that the filter element cover can be made of common materials, cost is lower, the coating position can be arranged at will, and the service life of the filter element cover is prolonged. Therefore, the insulating hydrophobic performance of the filter element cover is improved conveniently.

Description

Technical Field

[0001] This utility model relates to the field of floor scrubbers, specifically a wastewater tank structure for a floor scrubber. 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] Because the capacity of the sewage tank is limited, a detection device is installed inside the sewage tank to detect the internal water level. Typically, the detection device is located on the lid of the sewage tank and includes two water level electrodes. The water level electrodes are connected to two probes that extend into the sewage tank. When the water level reaches the high level and immerses in the detection section of the two probes, the two probes form a circuit with water as the medium, which in turn causes the two water level electrodes to conduct and generate a signal to inform the host that the water level in the sewage tank has reached the maximum limit, and notify the user to clean the sewage tank.

[0005] During the operation of the floor scrubber, wastewater may adhere to the bottom wall of the cover and form a water film. This water film can cause the detection sections of the two probes to form a loop, resulting in false alarms for the highest water level signal. This can affect the normal operation of the floor scrubber and reduce the user experience. Summary of the Invention

[0006] In order to overcome the shortcomings of the existing technology, this utility model provides a wastewater tank structure for a floor scrubbing machine.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A wastewater tank structure for a floor scrubber includes a wastewater storage tank and a filter cartridge cover that closes the top of the wastewater storage tank. The filter cartridge cover has a suction port that connects to the suction device of the floor scrubber, and a filter cartridge is installed inside the suction port. The filter cartridge cover also has two water level electrodes, and a probe that penetrates into the wastewater storage tank is connected below the water level electrodes. The bottom of the filter cartridge cover has a probe tube that extends into the wastewater 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 wall surface of the probe tube is covered with a nano-waterproof coating, and / or the surface above the detection section of the probe is covered with a nano-waterproof coating.

[0009] The nano-waterproof coating is a fluorine nano-coating.

[0010] The distance between the probe tube and the inner wall of the sludge storage tank and the filter element cover is greater than or equal to 2 mm.

[0011] The probe tube is coated with a nano-waterproof coating with a surface length greater than or equal to 4 mm.

[0012] The surface of the probe extending into the probe tube is also covered with a nano-waterproof coating with a length of at least 3 mm, while the surface length of the nano-waterproof coating covering the exposed upper surface of the detection section is greater than or equal to 4 mm.

[0013] The probe tube has a sealing component at its opening to form a seal with the probe, and the nano-waterproof coating covers the upper surface of the detection section of the probe and the opening of the probe tube.

[0014] The probe includes a mounting bracket, a metal conductive rod, and a metal connecting piece. The top end of the metal conductive rod is inserted into the mounting bracket, which is installed on the top of the probe tube inside the filter cover. The metal connecting piece is sleeved on the top end of the metal conductive rod and fixed to the top surface of the mounting bracket. The area from the electrical contact end of the metal connecting piece to the detection end of the metal conductive rod is covered with a nano-waterproof coating.

[0015] 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.

[0016] The probe tube has a notch on its bottom sidewall, through which the detection section of the probe protrudes and is exposed inside the sludge storage tank.

[0017] The notch is opened towards the direction of the water barrier.

[0018] The beneficial effects of this utility model are as follows: This utility model protects the probe tube by encasing it inside the probe tube, and the inner and outer walls of the probe tube are coated with a nano-waterproof coating. Even the surface above the probe detection section is also coated with a nano-waterproof coating. The nano-waterproof coating has the effects of hydrophobicity, oleophobicity and insulation, which can effectively reduce water stains remaining on the probe tube and probe to form a water film that causes the water level electrode to conduct, thereby avoiding the situation of false triggering of the sewage full water level detection. In addition, the direct coating of nano-waterproof coating allows the filter cover to be made of ordinary materials, which is cheaper and the coating position can be arranged arbitrarily, thereby facilitating the improvement of the insulation and hydrophobic performance of the filter cover. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a diagram showing the disassembly of the sewage tank;

[0021] Figure 2 This is a schematic diagram of the structure of the filter element cover of this utility model;

[0022] Figure 3 yes Figure 2 Enlarged view of point A;

[0023] Figure 4 This is a disassembled schematic diagram of the filter element cover of this utility model;

[0024] Figure 5 This is a schematic diagram of the probe structure of this utility model. Detailed Implementation

[0025] Reference Figures 1 to 5 A wastewater tank structure for a floor scrubber 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 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. The water level electrode 22 has two locations, and a probe 4 that penetrates into the wastewater storage tank 1 is connected below the water level electrode 22. A probe tube 23 extending into the wastewater storage tank 1 is provided at the bottom of the filter element cover 2. The probe 4 passes through the probe tube 23, with its bottom extending out of the probe tube 23 to form a detection section 41. The probe tube 23 encloses and protects the probe 41. The wall of tube 23 is coated with a nano-waterproof coating, or the surface above the detection section 41 of probe 4 is coated with a nano-waterproof coating, or both the wall of probe tube 23 and the surface above the detection section 41 of probe 4 are coated with a nano-waterproof coating. The nano-waterproof coating has the effects of hydrophobicity, oleophobicity and insulation, which can effectively reduce the water residue on probe 4 and cause the water level electrode 22 to conduct, thereby avoiding the situation of false triggering of sewage full water level detection. Moreover, the direct coating of nano-waterproof coating allows the filter cover 2 to be made of ordinary materials, which is cheaper and the coating position can be arranged arbitrarily, thereby facilitating the improvement of the insulation and hydrophobic performance of filter cover 2.

[0026] The nano-waterproof coating is a fluorine nano-coating with ultra-low viscosity, ultra-high leveling properties, and is colorless, transparent, and odorless. After simple impregnation or spraying of the target object and drying at room temperature or rapid baking, a waterproof, moisture-proof, insulating, and corrosion-resistant coating can be formed on the surface of the target object.

[0027] Generally, the distance between water droplets adhering to a smooth plastic surface is 3-10 mm. However, although the surface covered by the nano-waterproof coating has hydrophobic and oleophobic properties, if the coverage length is less than 4 mm, water droplets adhering to the probe tube 25 will cover the nano-waterproof coating surface, thus causing the nano-waterproof coating to fail. Therefore, the length of the surface covered by the nano-waterproof coating should be greater than or equal to 4 mm.

[0028] When a nano-waterproof coating is applied to the upper surface of the detection section 41 of the probe 4, in order to prevent the nano-waterproof coating from failing due to the formation of a conductive path between the internal water and the external water film after sewage enters the probe tube opening, the surface of the probe 4 extending into the probe tube 23 is also coated with a nano-waterproof coating with a length of at least 3 mm, and the surface length of the nano-waterproof coating covering the exposed upper surface of the detection section (41) is greater than or equal to 4 mm.

[0029] Of course, a sealing component can also be provided at the opening of the probe tube 23 to form a seal with the probe 4. The sealing component can be a sealing ring or sealant injected between the probe tube 23 and the probe 4. The nano-waterproof coating covers the upper surface of the detection section 41 of the probe 4 and the opening of the probe tube 23. In this case, the length of the surface covered by the nano-waterproof coating is greater than or equal to 4 mm.

[0030] The probe 4 includes a mounting bracket 42, a metal conductive rod 43, and a metal connecting piece 44. The top end of the metal conductive rod 43 is inserted into the mounting bracket 42, which is installed on the top of the probe tube 23 inside the filter cover 2. The metal connecting piece 44 is sleeved on the top end of the metal conductive rod 43 and fixed on the top surface of the mounting bracket 42. The probe can also be covered with a large area of ​​nano-waterproof coating. However, since the electrical connection end of the metal connecting piece 44 needs to be electrically connected to the water level electrode 22, it is not covered with nano-waterproof coating here. The nano-waterproof coating covers the area from below the electrical connection end of the metal connecting piece 44 to above the detection end of the metal conductive rod 43.

[0031] The sludge storage tank 1 is equipped with a sludge pipe 11 that connects the inside and outside of the tank. The inlet of the sludge pipe 11 is located at the bottom of the sludge storage tank 1 and connects to the dust suction port of the floor scrubber. The outlet of the 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, which covers the outlet of the sludge pipe 11. The suction port 21 is located above the water baffle 24, and the water baffle 24 has a side ventilation port 25 that connects the suction port 21 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 to prevent the sewage sucked in from the sludge pipe due to the negative pressure inside the tank from directly splashing into the probe tubes 23 and probes 4. Furthermore, a notch 231 is formed on the bottom sidewall of the probe tube 23, and the detection section 41 of the probe 4 passes through the notch 231 and is exposed inside the sludge storage tank 1. The sidewall forming the notch 231 can provide a certain degree of protection for the detection section 41, and the notch 231 is opened towards the water baffle 24 to prevent debris from impacting the detection section 41.

Claims

1. A wastewater tank structure for a floor scrubber, comprising a wastewater storage tank (1) and a filter element cover (2) covering the open top of the wastewater storage tank (1), wherein the filter element cover (2) is provided with a suction port (21) for connecting with the suction device of the floor scrubber, a filter element (3) is installed inside the suction port (21), and 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) penetrating into the wastewater storage tank (1) is connected below the water level electrode (22), 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 (41). The wall surface of the probe tube (23) is covered with a nano waterproof coating, and / or the surface above the detection section (41) of the probe (4) is covered with a nano waterproof coating.

2. The sewage tank structure according to claim 1, characterized in that: The nano-waterproof coating is a fluorine nano-coating.

3. The sewage tank structure according to claim 1 or 2, characterized in that: The distance between the probe tube (23) and the inner wall of the sludge storage tank (1) and the filter cover (2) is greater than or equal to 2 mm.

4. The sewage tank structure according to claim 1 or 2, characterized in that: The probe tube (23) has a surface length of 4 mm or greater than or equal to that of the nano-waterproof coating.

5. The sewage tank structure according to claim 4, characterized in that: The probe (4) extending into the probe tube (23) is also covered with a nano-waterproof coating with a length of at least 3 mm, while the exposed upper surface of the detection section (41) is covered with a nano-waterproof coating with a surface length greater than or equal to 4 mm.

6. The sewage tank structure according to claim 4, characterized in that: The probe tube (23) has a sealing component at its opening to form a seal with the probe (4), and the nano waterproof coating covers the upper surface of the detection section (41) of the probe (4) and the opening of the probe tube (23).

7. The sewage tank structure according to claim 1, characterized in that: The probe (4) includes a mounting bracket (42), a metal conductive rod (43), and a metal connecting piece (44). The top end of the metal conductive rod (43) is inserted into the mounting bracket (42), and the mounting bracket (42) is installed on the top of the probe tube (23) inside the filter cover (2). The metal connecting piece (44) is sleeved on the top end of the metal conductive rod (43) and fixed on the top surface of the mounting bracket (42). The area from the electrical connection end of the metal connecting piece (44) to the detection end of the metal conductive rod (43) is covered with a nano-waterproof coating.

8. The sewage tank structure according to claim 1 or 6, characterized in that: The sludge storage tank (1) is provided 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 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) 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).

9. The sewage tank structure according to claim 8, characterized in that: The probe tube (23) has a notch (231) formed on the bottom side wall, and the detection section (41) of the probe (4) passes through the notch (231) and is exposed inside the sludge storage tank (1).

10. The sewage tank structure according to claim 9, characterized in that: The notch (231) is opened toward the water shield (24).

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