Sewage tank, scrubber and control method of scrubber

Abstract

The invention discloses a sewage tank which comprises a tank body, a tank cover, a first liquid level detection assembly and a second liquid level detection assembly, and the first liquid level detection assembly and the second liquid level detection assembly are arranged on the tank body and / or the tank cover and used for detecting the water level in the tank body; the first liquid level detection assembly comprises a first electrode and a second electrode, the polarities of the first electrode and the second electrode are opposite, the first electrode extends downwards in the length direction of the box body, and the tail end of the first electrode is arranged to be in an arc shape in the circumferential direction of the box body; the second liquid level detection assembly comprises a third electrode and a fourth electrode, the polarities of the third electrode and the fourth electrode are opposite, and the third electrode and the fourth electrode extend downwards in the length direction of the box body. Compared with the prior art, the two liquid level detection assemblies are arranged, the liquid level detection requirements in different working modes can be met, liquid level detection is more accurate, the first electrode with the arc-shaped tail end is arranged, and the liquid level detection assemblies can still operate sensitively when the scrubber rotates left and right.

Description

Technical Field

[0001] The present invention relates to the technical field of water level detection, and in particular to a sewage tank, a floor scrubber and a control method for the floor scrubber. Background Art

[0002] Most of the existing floor cleaning equipment is equipped with a set of vertical columnar electrodes. During the sewage recovery process, different working modes cause different degrees of splashing of water and gas in the sewage tank. For example, in the strong mode, due to the increased power of the vacuum motor, the surge and airflow in the sewage tank are more likely to suck the sewage into the vacuum motor. Ordinary liquid level detection components cannot detect the liquid level in real time. It may happen that the sewage can only contact one of the electrodes, and the full water alarm cannot be achieved. In serious cases, the vacuum motor will be damaged. Summary of the invention

[0003] The object of the present invention is to provide a sewage tank to solve the problems raised by the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sewage tank, comprising a tank body, a tank cover, a first liquid level detection assembly and a second liquid level detection assembly, wherein the first liquid level detection assembly and the second liquid level detection assembly are arranged on the tank body and / or the tank cover, and are used to detect the water level in the tank body; the first liquid level detection assembly comprises a first electrode and a second electrode, the first electrode and the second electrode have opposite polarities, the first electrode extends downward along the length direction of the tank body, and the end of the first electrode is arranged in an arc shape along the circumference of the tank body; the second liquid level detection assembly comprises a third electrode and a fourth electrode, the third electrode and the fourth electrode have opposite polarities, and the third electrode and / or the fourth electrode extend downward along the length direction of the tank body.

[0005] The sewage tank further includes a first wiring terminal assembly and a second wiring terminal assembly, the first wiring terminal assembly is electrically connected to the first liquid level detection assembly, and the second wiring terminal assembly is electrically connected to the second liquid level detection assembly.

[0006] Wherein, the end of the first electrode is arranged in a circular ring shape along the circumference of the box body.

[0007] The second electrode extends downward along the length direction of the box body, and the end of the first electrode and the end of the second electrode are located at the same height.

[0008] The second electrode extends downward along the length direction of the box body, and the end of the second electrode is located below the end of the first electrode.

[0009] The second electrode is located in the middle of the box body and is equidistant from all locations of the arc-shaped end of the first electrode.

[0010] The ends of the first electrode and the second electrode are at different heights from the ends of the third electrode and the fourth electrode.

[0011] A second object of the present invention is to provide a floor scrubber, comprising a machine body and a sewage tank detachably connected to the machine body, wherein the sewage tank is the sewage tank as described above.

[0012] The third object of the present invention is to provide a control method for a floor scrubber, wherein the floor scrubber is as described above, and the working mode of the floor scrubber includes a strong mode. When the floor scrubber is operating in the strong mode, the first liquid level detection component works; when the floor scrubber is operating in a mode other than the strong mode, the second liquid level detection component works.

[0013] Among them, when the floor scrubber is running in the strong mode, the first liquid level detection component works and the second liquid level detection component does not work; when the floor scrubber is running in other modes other than the strong mode, the second liquid level detection component works and the first liquid level detection component does not work.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The present invention sets two liquid level detection components to meet the liquid level detection requirements in different working modes, making the liquid level detection more accurate. When the floor scrubber is running in the strong mode, the first liquid level detection component is used for liquid level detection. Since one of the electrodes of the first liquid level detection is arc-shaped, it can contact the sewage at different angles. This can solve the problem that in the strong mode, the power of the vacuum motor is increased, and the surge and airflow in the sewage tank are more likely to suck the sewage into the vacuum motor. The ordinary liquid level detection component cannot detect the liquid level in real time. When the floor scrubber is running in other modes other than the strong mode, the ordinary liquid level detection component can meet the requirements, and the second liquid level detection component can be selected at this time;

[0016] (2) The first electrode with an arc-shaped end is provided so that the liquid level detection component can still operate sensitively during the left and right rotation and tilting operation of the floor scrubber, thereby preventing sewage from concentrating on one side of the sewage tank and causing the sewage to only contact one of the electrodes, thereby effectively protecting the vacuum motor and maintaining the normal operation of the floor scrubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a sewage tank 100 according to an embodiment of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a sewage tank 100 according to another embodiment of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the floor scrubber of the present invention.

[0020] In the figure: 100, sewage tank; 110, box body; 120, box cover; 130, first liquid level detection component; 131, first electrode; 1311, end of the first electrode; 132, second electrode; 140, second liquid level detection component; 141, third electrode; 142, fourth electrode; 150, first terminal assembly; 160, second terminal assembly; 200, fuselage. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1:

[0023] See also Figure 1 The present invention provides the following technical solution: a sewage tank 100, characterized in that it includes a tank body 110, a tank cover 120, a first liquid level detection component 130 and a second liquid level detection component 140, wherein the first liquid level detection component 130 and the second liquid level detection component 140 are both arranged on the tank cover 120, and are used to detect the water level in the tank body 110. In other embodiments, the first liquid level detection component 130 and the second liquid level detection component 140 may be arranged on the tank body 110, or one of them may be arranged on the tank body 110 and the other may be arranged on the tank cover 120, which is not limited here.

[0024] Among them, the first liquid level detection component 130 includes a first electrode 131 and a second electrode 132, the polarities of the first electrode 131 and the second electrode 132 are opposite, the first electrode 131 extends downward along the length direction of the box body 110, and the end 1311 of the first electrode 131 is arranged in an arc shape along the circumference of the box body 110, so that when the sewage tank 100 rotates left and right and tilts, no matter which side the sewage is concentrated on, the sewage can contact the first electrode 131 and the second electrode 132, so that the first liquid level detection component 130 can operate sensitively, avoiding the situation where the sewage can only contact one of the electrodes when the sewage is concentrated on one side of the sewage tank 100, thereby effectively protecting the vacuum motor and maintaining the normal operation of the floor scrubber.

[0025] The second liquid level detection assembly 140 includes a third electrode 141 and a fourth electrode 142. The third electrode 141 and the fourth electrode 142 have opposite polarities and extend downward along the length direction of the box. Figure 2As shown, in other embodiments, only the third electrode 141 may be arranged to extend downward along the length direction of the box body, and the fourth electrode 142 may be arranged at the bottom of the box body 110. In this case, as long as the sewage contacts the third electrode 141 again, the two electrodes can be connected, and the liquid level detection is more accurate. It is easy to think that only the fourth electrode 142 may be arranged to extend downward along the length direction of the box body, and the third electrode 141 may be arranged at the bottom of the box body 110.

[0026] The present invention is provided with two liquid level detection components, which can meet the liquid level detection requirements in different working modes, so that the liquid level detection is more accurate. When the floor scrubber is running in the strong mode, the first liquid level detection component 130 is used to detect the liquid level. Since the end 1311 of the first electrode 131 of the first liquid level detection component 130 is arc-shaped, it can contact the sewage at different angles. This can solve the problem that in the strong mode, the power of the vacuum motor is increased, and the surge and airflow in the sewage tank 100 are more likely to suck the sewage into the vacuum motor, and the ordinary liquid level detection component cannot detect the liquid level in real time; when the floor scrubber is running in other modes other than the strong mode, the ordinary liquid level detection component can meet the demand, and the second liquid level detection component 140 can be selected at this time.

[0027] The sewage tank 100 further includes a first wiring terminal assembly 150 and a second wiring terminal assembly 160, wherein the first wiring terminal assembly 150 is electrically connected to the first liquid level detection assembly 130, and the second wiring terminal assembly 160 is electrically connected to the second liquid level detection assembly 140. The first liquid level detection assembly 130 and the second liquid level detection assembly 140 are respectively connected to different wiring terminal assemblies, and the first liquid level detection assembly 130 and the second liquid level detection assembly 140 can be controlled to operate separately, and even if one of the liquid level detection assemblies or the wiring terminal assembly is damaged and fails, the other can work normally, and different liquid level detection assemblies can be opened and closed respectively in different working modes.

[0028] In one embodiment, the end 1311 of the first electrode 131 is arranged in a circular ring shape along the circumference of the box body 110. The circular ring shape has a higher accuracy rate of liquid level detection than the arc shape.

[0029] In another embodiment, the end 1311 of the first electrode 131 is arranged in a semicircular ring shape along the circumference of the box body 110. The semicircular ring shape is lower in cost than the circular ring shape, but can also take into account the accuracy of liquid level detection. The present invention does not limit the specific arc shape of the end 1311 of the first electrode 131.

[0030] The second electrode 132 extends downward along the length direction of the box body 110, and the end 1311 of the first electrode 131 is located at the same height as the end of the second electrode 132. If the end of the second electrode 132 is located further away from the bottom of the box body 110, even if the first electrode 131 contacts the sewage, the second electrode 132 cannot contact the sewage, and the conduction between the two electrodes cannot be achieved, and accurate liquid level detection cannot be performed.

[0031] In another embodiment, the second electrode 132 is located in the middle of the box 110, the second electrode 132 extends downward along the length direction of the box 110, and the end of the second electrode 132 is located below the end 1311 of the first electrode 131. On the basis of the previous embodiment, since the second electrode 132 is located in the middle of the box 110, rather than the side of the box 110, when the box 110 tilts to one side, there will be a situation where only the first electrode 131 is contacted and the electrode 132 is not contacted. At this time, the end of the second electrode 132 is set below the end 1311 of the first electrode 131, so that the end of the second electrode 132 and the end 1311 of the first electrode 131 can contact the sewage at the same time, ensuring the accuracy of liquid level detection.

[0032] In one embodiment, the second electrode 132 is located in the middle of the box body 110, and the second electrode 132 is at an equal distance from each location of the arc-shaped end 1311 of the first electrode 131, so as to avoid the second electrode 132 being located on the left side of the box body 110, and when the sewage tank 100 is tilted to the right side, the sewage cannot contact the first electrode 131 and the second electrode 132 at the same time, resulting in inaccurate liquid level detection. In other embodiments, the distances of the second electrode 132 from each location of the arc-shaped end 1311 of the first electrode 131 may be slightly different, and do not need to be completely equal, and the ratio between the closest distance and the farthest distance can be less than 2.

[0033] like Figure 1 As shown, the ends of the first electrode 131 and the second electrode 132 are at different heights from the ends of the third electrode 141 and the fourth electrode 142. In one embodiment, the ends of the first electrode 131 and the second electrode 132 are lower than the ends of the third electrode 141 and the fourth electrode 142. When the floor scrubber is tilted and the strong mode is turned on, the ends of the first electrode 131 and the second electrode 132 are set lower than the ends of the third electrode 141 and the fourth electrode 142, which can increase the accuracy of liquid level detection. In another embodiment, the ends of the first electrode 131 and the second electrode 132 are higher than the ends of the third electrode 141 and the fourth electrode 142. Other different situations can be applied, and the present invention is not limited thereto.

[0034] Embodiment 2:

[0035] like Figure 3As shown, the present invention further discloses a floor scrubber, comprising a body 200 and a sewage tank 100 detachably connected to the body 200 , wherein the sewage tank 100 is the sewage tank 100 as described in the first embodiment above.

[0036] Embodiment three:

[0037] The present invention also discloses a control method for a floor scrubber, wherein the floor scrubber is as described above, and the working mode of the floor scrubber includes a strong mode. When the floor scrubber is operated in the strong mode, the first liquid level detection component 130 works; when the floor scrubber is operated in other modes other than the strong mode, the second liquid level detection component 140 works. Specifically, in one embodiment, when the floor scrubber is operated in the strong mode, the first liquid level detection component 130 works, and the second liquid level detection component 140 does not work; when the floor scrubber is operated in other modes other than the strong mode, the second liquid level detection component 140 works, and the first liquid level detection component 130 does not work, and the two liquid level detection components perform their respective functions and do not interfere with each other. In another embodiment, when the floor scrubber is operated in the strong mode, the first liquid level detection component 130 works, and the second liquid level detection component 140 also works, thereby improving the accuracy of liquid level detection; when the floor scrubber is operated in other modes other than the strong mode, the second liquid level detection component 140 works, and the first liquid level detection component 130 does not work. Alternatively, no matter which working mode the floor scrubber operates in, the first liquid level detection component 130 and the second liquid level detection component 140 both work to improve the accuracy of liquid level detection.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sewage tank, characterized in that: It comprises a box body, a box cover, a first liquid level detection component and a second liquid level detection component, wherein the first liquid level detection component and the second liquid level detection component are arranged on the box body and / or the box cover, and are used to detect the water level in the box body; The first liquid level detection assembly includes a first electrode and a second electrode, the first electrode and the second electrode have opposite polarities, the first electrode extends downward along the length direction of the box body, and the end of the first electrode is arranged in an arc shape along the circumference of the box body; The second liquid level detection assembly includes a third electrode and a fourth electrode. The third electrode and the fourth electrode have opposite polarities. The third electrode and / or the fourth electrode extend downward along the length direction of the box body.

2. The sewage tank according to claim 1, characterized in that: The sewage tank further comprises a first wiring terminal assembly and a second wiring terminal assembly, wherein the first wiring terminal assembly is electrically connected to the first liquid level detection assembly, and the second wiring terminal assembly is electrically connected to the second liquid level detection assembly.

3. The sewage tank according to claim 1, characterized in that: The end of the first electrode is arranged in a circular ring shape along the circumference of the box.

4. The sewage tank according to claim 1, characterized in that: The second electrode extends downward along the length direction of the box body, and the end of the first electrode and the end of the second electrode are located at the same height.

5. The sewage tank according to claim 1, characterized in that: The second electrode extends downward along the length direction of the box body, and the end of the second electrode is located below the end of the first electrode.

6. The sewage tank according to claim 1, characterized in that: The second electrode is located in the middle of the box body and is equidistant from all locations of the arc-shaped end of the first electrode.

7. The sewage tank according to claim 1, characterized in that: The ends of the first electrode and the second electrode are at different height positions from the ends of the third electrode and the fourth electrode.

8. A floor scrubber, characterized in that: It comprises a body and a sewage tank detachably connected to the body, and the sewage tank is the sewage tank according to any one of claims 1 to 7.

9. A method for controlling a floor scrubber, characterized in that: The floor scrubber is the floor scrubber as claimed in claim 8, and the working mode of the floor scrubber includes a strong mode; when the floor scrubber operates in the strong mode, the first liquid level detection component works; when the floor scrubber operates in a mode other than the strong mode, the second liquid level detection component works.

10. The control method of the floor scrubber according to claim 9, characterized in that: When the floor scrubber operates in the powerful mode, the first liquid level detection component works and the second liquid level detection component does not work; when the floor scrubber operates in a mode other than the powerful mode, the second liquid level detection component works and the first liquid level detection component does not work.

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