CN215502799U - Water fullness detection device of floor cleaning machine sewage tank and floor cleaning machine - Google Patents

Abstract

The utility model discloses a floor washing machine and a water fullness detection device of a sewage tank of the floor washing machine, and relates to the field of household floor cleaners. The problem that the floater detection device occupies the space in the sewage tank, easily causes faults and is inconvenient to clean the sewage tank is mainly solved. The full water detection device comprises a plurality of capacitance polar plates and a signal processor, wherein the capacitance polar plates are arranged at intervals at a sewage tank installation position of the floor washing machine along the height direction of the sewage tank; and the signal processor is electrically connected with the plurality of capacitor plates and used for detecting capacitance values and further judging whether the sewage tank is full of water or not according to the detected capacitance values. This floor cleaning machine includes foretell full detection device of water.

Description

Water fullness detection device of floor cleaning machine sewage tank and floor cleaning machine

Technical Field

The utility model relates to the field of household floor cleaners, in particular to a water fullness detection device of a floor washing machine sewage tank and a floor washing machine adopting the water fullness detection device.

Background

The detection of the water fullness in the sewage tank (also called as a dust collecting box) is one of the core technologies of floor washers, and currently, the floor washers on the market often add a float in the sewage tank, and use the rise and fall or the position change of the float to trigger a sensor (such as a pressure sensor or a position sensor) to work, so as to determine whether the sewage tank is full of water. It has the following disadvantages: a. occupies the space in the sewage tank, so that the effective capacity is reduced; b. dirt is easy to enter the float positioning slide rail, so that the movement of the float is blocked, the water fullness cannot be normally detected, the sewage overflows, and even the machine is damaged; c. the existence of the floater and the floater bracket causes inconvenient cleaning of the sewage tank assembly.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a device for detecting the water level in a sewage tank of a floor washing machine, which solves the above-mentioned drawbacks of the related art at least to some extent.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a full detection device of water of scrubber sewage case which characterized in that, full detection device includes:

a plurality of capacitor plates disposed at intervals in a sewage tank installation position of the scrubber machine in a height direction of the sewage tank; and

and the signal processor is electrically connected with the plurality of capacitor plates and used for detecting the capacitance value and further judging whether the sewage tank is full of water or not according to the capacitance value.

Preferably, the side part of the capacitor plate close to the sewage tank is provided with a protection plate to prevent the capacitor plate from being polluted.

Preferably, the back of the protection plate is provided with a groove, the capacitor plate is embedded in the groove, and the capacitor plate is supported by the protection plate at a sewage tank installation position of the scrubber.

Preferably, the capacitor plate is long, and the long side of the capacitor plate is parallel to the horizontal plane.

Preferably, the plurality of capacitor plates are arranged at equal intervals along the height direction of the sewage tank.

A floor scrubber, comprising:

a body assembly having a clean water tank, a sewage tank, and a suction motor;

a handle assembly;

a cleaning head; and

a control device, the control device comprising: the full water detection device is used for detecting whether the sewage tank is full of water or not; the main control board is electrically connected with the full water detection device and the suction motor and controls the suction motor to stop when the full water of the sewage tank is detected; wherein the full water detection device is the full water detection device as described in any one of the above.

In the floor washing machine described above, preferably, the control device further includes: and an operation part electrically connected with the main control board.

In the floor washing machine described above, preferably, the control device further includes: and the full water alarm part is electrically connected with the main control board and outputs an alarm signal when the full sewage tank is detected, and the full water alarm part comprises one or more of a buzzing alarm unit, an optical alarm unit and a voice alarm unit.

Compared with the prior art, the utility model has at least the following beneficial effects:

whether the sewage tank is full of water is detected by using a capacitance method, the detection and control element is outside the sewage tank and cannot be blocked by dirt in the sewage, the reliability is better, meanwhile, as the inside of the sewage tank is not provided with auxiliary structures such as a floater and a floater bracket, the structure of the sewage tank assembly is simpler, the effective capacity is increased, the user cleaning is more convenient, and the user experience is greatly improved.

Drawings

FIG. 1 is a cross-sectional view of a floor scrubber;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 2;

FIG. 4 is a schematic diagram of an arrangement of capacitor plates;

FIG. 5 is a schematic view of a scrubber;

FIG. 6 is a perspective view of the waste water tank;

FIG. 7 is a schematic view showing an internal structure of the waste water tank;

FIG. 8 is a block diagram of a control device;

reference numerals: 1. a sewage tank; 1-1, the rear wall of the sewage tank; 1-2, a filter; 1-3, a suction channel in the sewage tank; 1-4, an airflow channel in the sewage tank; 2. rolling and brushing; 3. a whole machine suction runner; 4. a fuselage assembly; 4-1, a suction motor; 4-2, a sewage tank mounting position; 5. a capacitor plate; 6. a protection plate; 6-1, a groove; 7. a cleaning head; 8. a clear water tank; 9. a handle assembly; 10. a control device; 10-1, a water full detection device; 10-2, a signal processor; 10-3, a water full alarm part; 10-4, a main control board; 10-5, an operation part.

Detailed Description

The utility model is further illustrated with reference to the following figures and examples.

This full detection device of water is used for detecting whether the sewage case of scrubber is full of water.

The full water detection device is used for detecting whether a sewage tank is full of water or not based on a capacitance method, and specifically comprises a plurality of capacitance plates and a signal processor electrically connected with the capacitance plates.

Referring to fig. 1, 2 and 3, a plurality of capacitor plates 5 are disposed at intervals along the height direction of the wastewater tank 1 at the wastewater tank installation site 4-2 of the scrubber, more specifically, at the position of the body facing the rear wall 1-1 of the wastewater tank 1, and the capacitor plates 5 may be disposed at the position of the body facing the side wall of the wastewater tank 1. Further, a protection plate 6 is disposed on a side portion of the capacitor plate 5 close to the sewage tank 1 to prevent the capacitor plate 5 from being contaminated. Furthermore, the back of the protection plate 6 is also provided with a plurality of grooves 6-1, and each capacitor plate 5 is embedded in the corresponding groove 6-1, so that the capacitor plates 5 are supported on the sewage tank installation position 4-2 of the floor washing machine, namely, the protection plate 6 is also used as a support of the capacitor plates 5, and therefore the structure can be simplified, and the manufacture is convenient.

Fig. 4 shows the shape and arrangement of the capacitor plates 5. The capacitor plate 5 is strip-shaped, and the long side of the capacitor plate 5 is parallel to the horizontal plane. This shape and arrangement state, on the one hand, arbitrary one capacitance plate 5 all has great area, can reliably obtain the capacitance value, and on the other hand for along sewage case 1 direction of height, can dispose more capacitance plate 5, help improving the precision that detects.

Further, in this embodiment, the plurality of capacitor plates 5 are disposed at equal intervals in the height direction of the wastewater tank 1.

Referring to fig. 8, the signal processor 10-2 is electrically connected to the plurality of capacitor plates 5 for detecting capacitance values, and further determining whether the wastewater tank 1 is full of water according to the detected capacitance values. Referring to fig. 8, in one embodiment, the signal processor 10-2 includes a total signal processor and a plurality of unit processors, any one of the plurality of capacitor plates 5 is connected to the total signal processor through the unit processor, the unit processor detects the capacitance value of the capacitor plate 5 connected thereto, and the total signal processor processes the capacitance value detected by each unit processor to determine whether the wastewater tank 1 is full of water.

The principle of water full detection is as follows: the mixture of water and garbage entering the sewage tank 1 carries and stores electric charges, which is equivalent to injecting electrolyte with certain capacity, and has the characteristic of a capacitor, and the leading-out of an electrode plate can be increased to form the capacitor. When more hydrates are sucked into the sewage tank 1, more charges are stored, and the capacitance value is relatively increased; the change of the water capacity in the sewage tank 1 is detected by the capacitance plates 5 uniformly distributed along the height direction of the sewage tank 1 and the change of the capacitance values sensed by the processor, and whether the sewage tank 1 is full of water is judged.

As can be seen from the above description, compared with the background art in which a float is added to the wastewater tank, the rise and fall or the position change of the float is used to trigger a sensor (e.g., a pressure sensor or a position sensor) to operate, thereby determining whether the wastewater tank is full. The full water detection device 10-1 of the sewage tank 1 of the embodiment detects whether the sewage tank 1 is full by using a capacitance method, the detection and control elements are outside the sewage tank 1 and cannot be blocked by dirt in sewage, the reliability is better, meanwhile, as the inside of the sewage tank 1 is not provided with auxiliary structures such as a floater and a floater bracket, the assembly structure of the sewage tank 1 is simpler, the effective capacity is increased, the user cleaning is more convenient, and the user experience is greatly improved.

Figure 5 shows a scrubber. Referring to fig. 5, the present floor washing machine includes: the machine comprises a machine body component 4, a handle component 9, a cleaning head 7 and a control device 10, wherein the machine body component 4 is provided with a clean water tank 8, a sewage tank 1 and a suction motor 4-1 (shown in figure 1), the sewage tank 1 and the clean water tank 8 are detachably arranged on the machine body, the clean water tank 8 can be conveniently taken down to supplement clean water, the sewage tank 1 is taken down to clean the sewage tank 1, the handle component 9 is arranged at the top end of the machine body component 4 and used for operating the floor cleaning machine, and the cleaning head 7 is hinged at the bottom end of the machine body component 4 and is provided with a rolling brush 2 and a rolling brush driving motor. Fig. 8 shows a configuration of the control device 10, and referring to fig. 8, the control device 10 includes: a full water detection device 10-1 for detecting whether the wastewater tank 1 is full; and a main control board 10-4 which is electrically connected with the full water detection device 10-1 and the suction motor 4-1 and controls the shutdown of the suction motor 4-1 when the sewage tank 1 is detected to be full; wherein, the water full detection device 10-1 is the water full detection device of the above embodiment. The control device 10 further includes an operation part 10-5 electrically connected to the main control board 10-4. The control device 10 further includes a full water alarm part 10-3 electrically connected to the main control board 10-4 and outputting an alarm signal when the wastewater tank 1 is detected to be full, and the full water alarm part 10-3 includes one or more of a buzzer alarm unit, a light alarm unit, and a voice alarm unit.

Fig. 6 and 7 show the structure of the wastewater tank 1. In the waste water tank 1 there is a suction channel 1-3 in the waste water tank from the bottom upwards and at the top there is a filter 1-2 and in the waste water tank 1 there is no float and float holder. The air flow channel 1-4 in the waste water tank comprises a suction channel 1-3 and a filter 1-2 in said waste water tank.

The working principle of the floor washing machine is as follows: the rolling brush 2 (see figure 1) rotates to clean the ground, under the suction action of the suction motor 4-1 of the machine body, a mixture of water, air and garbage enters the sewage tank 1 through the whole machine suction flow channel 3, the mixture realizes gas-liquid separation under the action of cyclone, gravity and mutual collision in the sewage tank 1, the mixture of liquid and garbage enters the bottom of the sewage tank 1, and then the air is discharged out of the machine after passing through the filter 1-2 and the suction motor 4-1. When the water in the sewage tank 1 is within the set capacity, the capacitance change information is transmitted to the main control board 10-4, and the machine works normally; when the water in the sewage tank 1 reaches the upper limit of the set capacity, the capacitance change reaches the set threshold value, the control unit on the main control board 10-4 starts and closes each execution unit comprising the suction motor 4-1, the rolling brush driving motor, the water pump motor and the like, and controls the water full alarm part 10-3 to generate an alarm to prompt that the sewage tank 1 is full of water and remind a user of cleaning the sewage tank 1.

The present invention has been described in detail with reference to the specific embodiments, and the detailed description is only for the purpose of helping those skilled in the art understand the present invention, and is not to be construed as limiting the scope of the present invention. Various modifications, equivalent changes, etc. made by those skilled in the art under the spirit of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. A water-full detection device of a scrubber sump tank, characterized in that the water-full detection device (10-1) comprises:

a plurality of capacitor plates (5) which are arranged at intervals in a sewage tank installation position (4-2) of the scrubber machine in the height direction of the sewage tank (1); and

and the signal processor (10-2) is electrically connected with the plurality of capacitor plates (5) and used for detecting capacitance values and further judging whether the sewage tank (1) is full of water or not according to the detected capacitance values.

2. The water full detection device according to claim 1, characterized in that the side of the capacitive plate (5) close to the sump (1) is provided with a protection plate (6) to prevent the capacitive plate (5) from being soiled.

3. The water level detection device according to claim 2, wherein a groove (6-1) is provided on the back of the protection plate (6), the capacitor plate (5) is embedded in the groove (6-1), and the capacitor plate (5) is supported by the protection plate (6) at a sump mounting location (4-2) of the scrubber.

4. The water level detection device according to claim 1, wherein the capacitor plates (5) are elongated, and the long sides of the capacitor plates (5) are parallel to the horizontal plane.

5. The water level detection device according to claim 1, wherein the plurality of capacitive plates (5) are arranged equidistantly in a height direction of the waste water tank (1).

6. A floor scrubber, comprising:

the machine body assembly (4), the machine body assembly (4) is provided with a clean water tank (8), a sewage tank (1) and a suction motor (4-1);

a handle assembly (9);

a cleaning head (7); and

a control device (10), the control device (10) comprising: a full water detection device (10-1) for detecting whether the wastewater tank (1) is full; and a main control board (10-4) which is electrically connected with the full water detection device (10-1) and the suction motor (4-1) and controls the stop of the suction motor (4-1) when the full water of the sewage tank (1) is detected;

characterized in that the water full detection device (10-1) is a water full detection device according to any one of the preceding claims 1 to 5.

7. The floor washing machine according to claim 6, characterized in that the control device (10) further comprises: and an operation part (10-5) electrically connected with the main control board (10-4).

8. The floor washing machine according to claim 6, characterized in that the control device (10) further comprises: and a full water alarm part (10-3) electrically connected with the main control board (10-4) and outputting an alarm signal when the sewage tank (1) is detected to be full, wherein the full water alarm part (10-3) comprises one or more of a buzzer alarm unit, an optical alarm unit and a voice alarm unit.

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