Water fullness detection system and scrubber

Abstract

The utility model provides a water fullness detection system and a scrubber. The water fullness detection system comprises a sewage tank assembly, a water pump assembly and a control assembly, wherein the sewage tank assembly comprises a sewage tank and a sewage tank head assembly, a separator capable of separating an inner cavity of the sewage tank into a sewage storage chamber and a separation chamber is arranged in the sewage tank, the sewage storage chamber is communicated with the separation chamber, and the sewage tank head assembly comprises a sensing module extending from the separation chamber to the sewage storage chamber; the sensing module is provided with a first sensing part and a second sensing part which are respectively used for sensing the water fullness condition of the sewage storage chamber and the separation chamber; the water fullness detection system disclosed by the utility model can be used for accurately detecting the water fullness of sewage in the sewage tank.

Description

Technical Field

[0001] The utility model relates to the technical field of floor scrubbers, and in particular to a water full detection system and a floor scrubber. Background Art

[0002] At present, the mainstream technical solution on the market is to use two exposed metal electrodes to detect water fullness. For example, the water tank does not separate the sewage storage chamber and the separation chamber. Then, a conventional bimetallic electrode is used in the sewage storage chamber to detect water fullness, and some anti-wave sheets are added to prevent sewage from shaking. The defect of this solution is that the space utilization rate of the water tank is very low, and a large enough space is required to ensure that the sewage will not be sucked to the air suction port by the negative pressure device and backflow into the suction motor. In addition, the false alarm rate of water fullness detection is high, and the conventional bimetallic electrode detection structure cannot prevent detection errors caused by splashing water. In another solution, the sewage tank is provided with an independent sewage storage chamber and a separation chamber, but the separation chamber is not separately protected from water fullness. This solution will result in the separation chamber not having water fullness protection. When the separation chamber is drained abnormally, water will enter the suction motor from the suction port of the separation chamber, causing damage to the suction motor. In addition, this solution also has the limitations of the ordinary bimetallic electrode structure, resulting in a high false alarm rate. Utility Model Content

[0003] The utility model provides a water full detection system with accurate water full detection and a floor scrubber with the system.

[0004] In order to solve the above technical problems, the embodiment of the utility model provides a water full detection system, which is applied to a floor scrubber. The water full detection system includes:

[0005] Sewage tank assembly;

[0006] Among them, the sewage tank assembly includes a sewage tank and a sewage tank head assembly, a partition is provided in the sewage tank, and the partition can divide the inner cavity of the sewage tank into a sewage storage chamber and a separation chamber, the sewage chamber and the separation chamber are connected so that sewage can flow from the sewage chamber into the separation chamber, and the sewage tank head assembly includes a sensing module extending from the separation chamber to the sewage storage chamber, the sensing module has a first sensing part in the sewage storage chamber, and has a second sensing part in the separation chamber, and the first sensing part and the second sensing part are respectively used to sense the water fullness of the sewage storage chamber and the separation chamber.

[0007] In some embodiments, the sensing module is a dual-electrode sensing component, and the sensing module is connected to a controller in the floor scrubber so that the controller controls the operation of the floor scrubber accordingly based on sensing data of the first sensing part and / or the second sensing part.

[0008] In some embodiments, the sensing module includes a first electrode member and a second electrode member, the first electrode member and the second electrode member located in the sewage storage chamber form the first sensing portion, and the first electrode member and the second electrode member located in the separation chamber form the second sensing portion.

[0009] In some embodiments, the first electrode member and the second electrode member each include a metal electrode body and an insulating layer surrounding the metal electrode body, one end of the first electrode member and the second electrode member located in the sewage storage chamber each forms a first sensing end, the metal electrode body at the first sensing end of the first electrode member extends out of the corresponding insulating layer, and the metal electrode body at the first sensing end of the second electrode member is at most flush with the end of the corresponding insulating layer;

[0010] The second sensing portion includes two second sensing ends, and the two second sensing ends are respectively formed by the first electrode member and the exposed part of the metal electrode body of the second electrode member located in the separation chamber.

[0011] In some embodiments, a sealing soft rubber is provided on the outer edge of the partition. When the sewage tank moves to a horizontal state with the main unit, the partition rotates to a position abutting against the inner wall of the sewage tank, and the sealing soft rubber seals the gap between the partition and the inner wall of the sewage tank. The partition and / or the sealing soft rubber are provided with a through hole for allowing water in the sewage storage chamber to flow to the separation chamber.

[0012] In some embodiments, the sewage tank head assembly is provided with a sewage storage chamber suction port corresponding to the sewage storage chamber, the sewage storage chamber suction port is connected to the negative pressure device of the main unit, the sewage storage chamber has an air inlet, and the air inlet is connected to the cleaning assembly of the main unit.

[0013] In some embodiments, the sewage tank head assembly is provided with a separation chamber suction port corresponding to the separation chamber, and the separation chamber suction port and the sewage storage chamber suction port are connected to the negative pressure device of the main unit, and the air inlet of the separation chamber and the air inlet of the sewage storage chamber are both connected to the cleaning assembly of the main unit.

[0014] In some embodiments, a wave-proof sheet is provided on the sewage tank head assembly between the air suction port of the sewage storage chamber and the sensing module.

[0015] In some embodiments, there are two sewage storage chamber suction ports, which are respectively located above the first electrode member and the second electrode member, and a wave-breaking sheet is provided between the first electrode member, the second electrode member and the corresponding sewage storage chamber suction port.

[0016] Another embodiment of the utility model also provides a floor scrubber, comprising a water full detection system as described in any one of the embodiments above.

[0017] Based on the disclosure of the above embodiments, it can be known that the beneficial effects of the embodiments of the utility model include that the overall configuration of the structure of the present application is simple and easy to implement, and it can be applied to the scene where the floor scrubber has one or more air ducts, and it can also be applied to the scene where the floor scrubber is in a vertical state or a horizontal state, and the scope of application is wide. In addition, a sensing module is set in the sewage tank to penetrate the sewage storage chamber and the separation chamber, and two sets of sensing parts are formed on the sewage tank to detect the water full state of the sewage storage chamber and the separation chamber respectively, so that the water full state can be effectively and accurately detected regardless of whether the sewage tank is in a vertical state or a horizontal state, or when sewage impurities interfere with the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 1 is a diagram showing the connection relationship between the water full detection system and the floor scrubber in an embodiment of the present utility model.

[0019] Figure 2 It is a structural schematic diagram of the water full detection system in an embodiment of the utility model.

[0020] Figure 3 It is a structural diagram of the water full detection system in another state in an embodiment of the utility model.

[0021] Figure 4 It is a partial structural diagram of the water full detection system in an embodiment of the utility model.

[0022] Figure 5 It is a partial structural diagram of the water full detection system in an embodiment of the utility model.

[0023] Figure 6 This is a diagram of the vertical use state of the floor scrubber in the embodiment of the utility model.

[0024] Figure 7 This is a diagram of the floor scrubber in the embodiment of the utility model in a horizontal use state.

[0025] Reference numerals:

[0026] 1-body; 2-sewage tank assembly; 3-sewage tank; 4-sewage tank head assembly; 5-sewage storage chamber; 6-separation chamber; 7-first sensing part; 8-second sensing part; 9-first electrode member; 10-second electrode member; 11-sewage storage chamber air inlet; 12-separation chamber air inlet; 13-wave-proof sheet; 14-separator DETAILED DESCRIPTION

[0027] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but are not intended to limit the present invention.

[0028] It should be understood that various modifications may be made to the embodiments disclosed herein. Therefore, the following description should not be considered as limiting, but merely as an example of an embodiment. Other modifications within the scope and spirit of the present disclosure will occur to those skilled in the art.

[0029] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the general description of the present disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the present disclosure.

[0030] These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the accompanying drawings.

[0031] It should also be understood that although the present invention has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present invention that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0032] The above and other aspects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0033] Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it should be understood that the disclosed embodiments are merely examples of the present disclosure, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid obscuring the present disclosure with unnecessary or redundant details. Therefore, the specific structural and functional details disclosed herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in a variety of ways with substantially any suitable detailed structure.

[0034] This specification may use the phrases "in one embodiment," "in another embodiment," "in a further embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present disclosure.

[0035] Below, the embodiments of the utility model are described in detail with reference to the accompanying drawings.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the utility model provides a water full detection system, which is applied to a floor scrubber. The water full detection system includes:

[0037] A sewage tank assembly 2 is detachably mounted on the main machine of the floor scrubber;

[0038] Among them, the sewage tank assembly 2 includes a sewage tank 4 and a sewage tank head assembly 4, a partition 14 is provided in the sewage tank, and the partition 14 can divide the inner cavity of the sewage tank 4 into a sewage storage chamber 5 and a separation chamber 6, the sewage storage chamber 5 and the separation chamber 6 are connected so that sewage can flow from the sewage storage chamber 5 into the separation chamber 6, and the sewage tank head assembly 4 includes a sensing module extending from the separation chamber to the sewage storage chamber, the sensing module has a first sensing part 7 located in the sewage storage chamber 5, and has a second sensing part 8 located in the separation chamber 6, and the first sensing part 7 and the second sensing part 8 are respectively used to sense the water fullness of the sewage storage chamber 5 and the separation chamber 6.

[0039] For example, the partition 14 in this embodiment can be, but is not limited to, a structural member such as a filter screen or a partition. It can be fixed in the sewage tank 4 or rotatably arranged in the sewage tank 4. When it is rotatably arranged in the sewage tank 4, it can rotate accordingly with the posture of the sewage tank 4, such as vertical, inclined, horizontal, etc. For example, when the sewage tank 4 lies flat, that is, in a horizontal state, the partition 14 can be rotated to a position against the inner wall of the sewage tank 4, thereby dividing the inner cavity of the sewage tank 4 into a separation chamber 6 and a sewage storage chamber 5. When the sewage tank 4 is in a vertical state, the partition 14 can be rotated away from the inner wall of the sewage tank 4, and the inner cavity of the sewage tank 4 is restored to the state before separation. The first sensing part 7 of the sensing module located in the sewage storage chamber 5 is used for water full detection, that is, as a water full protection member in the sewage storage chamber 5. At the same time, the second sensing part 8 of the sensing module located in the separation chamber 6 is used to detect the sewage in the separation chamber 6 when there is too much sewage in the separation chamber 6. In addition, when the sewage in the sewage storage chamber 5 is too turbid, impurities interfere with the detection of the first sensor 7. At this time, when the sewage spreads into the separation chamber 6, the second sensor 8 can also serve as a protective barrier to detect whether the sewage tank is full of water. This state is applicable regardless of whether the sewage tank is in a horizontal state or a vertical state, and can fully protect the main unit from being damaged by sewage interference.

[0040] Based on the contents of the above embodiments, it can be known that the overall configuration of the water full detection system structure of this embodiment is simple and easy to implement. It can be applied to the scene where the floor scrubber has one or more air ducts, and can also be applied to the scene where the floor scrubber is in a vertical or horizontal state, and has a wide range of applications. In addition, a sensing module is set in the sewage tank 4 to penetrate the sewage storage chamber 5 and the separation chamber 6, and two sets of sensing parts are formed on the sewage tank 4 to detect the water full state of the sewage storage chamber 5 and the separation chamber 6 respectively, so that the water full state can be effectively and accurately detected regardless of whether the sewage tank 4 is in a vertical state or a horizontal state, or when sewage impurities interfere with the detection, and there is no need to set two sets of sensing modules, only one set of sensing modules is needed to realize the detection of different chambers.

[0041] In some embodiments, the sensing module is a dual-electrode sensing component, the first sensing part 7 and the second sensing part 8 are formed by different areas of the sensing module, and the sensing module is connected to the controller in the floor scrubber so that the controller controls the operation of the floor scrubber accordingly based on the sensing data of the first sensing part 7 and / or the second sensing part 8.

[0042] Specifically, the sensing module in this embodiment includes a first electrode member 9 and a second electrode member 10. The first electrode member 9 and the second electrode member 10 are located in the sewage storage chamber 5 to form the first sensing part 7. The first electrode member 9 and the second electrode member 10 are located in the separation chamber 6 to form the second sensing part 8.

[0043] The first electrode member 9 and the second electrode member 10 both include a metal electrode body and an insulating layer surrounding the metal electrode body. The first electrode member 9 and the second electrode member 10 are located at one end in the sewage storage chamber 5 to form a first sensing end. The metal electrode body at the end of the first electrode member 9 extends out of the corresponding insulating layer, and the metal electrode body at the end of the second electrode member 10 is at most flush with the corresponding insulating layer end, such as being recessed in the insulating layer, etc. The two first sensing ends are specifically formed by the exposed metal electrode bodies at the ends of the two electrode members. The positions of the exposed metal electrode bodies relative to their own insulating layers are different. The first sensing end protruding from the insulating layer contacts the sewage first, while the other first sensing end that does not protrude from the insulating layer can contact the water only when the water submerges it. That is, if you want to conduct the two first sensing ends, the sewage needs to submerge the two first sensing ends at the same time, otherwise the two first sensing ends cannot be conducted. This can effectively avoid the misjudgment of sewage shaking when the orientation of the floor scrubber changes.

[0044] The second sensing portion 8 includes two second sensing ends, and the two second sensing ends are respectively formed by the exposed portions of the metal electrode bodies of the first electrode member 9 and the second electrode member 10 located in the separation chamber 6. For example, a portion of the insulating layer is stripped off from the portions of the first electrode member 9 and the second electrode member 10 located in the separation chamber 6 to expose the metal electrode bodies and thus form the two second sensing ends.

[0045] Furthermore, in some other embodiments, the partition 14 is rotatably disposed in the sewage tank 4. The outer side of the partition 14 is provided with a sealing soft rubber. When the sewage tank 4 moves to a horizontal state with the host, the partition 14 rotates to seal against the inner wall of the sewage tank based on the sealing soft rubber, thereby dividing the sewage tank 4 into two chambers. The partition 14 and / or the sealing soft rubber are provided with through holes, and the through holes are used to allow sewage to flow through, such as allowing the sewage in the sewage storage chamber 5 to flow to the separation chamber 6.

[0046] Continue to combine Figure 4, as shown in FIG. 5 , the sewage tank head assembly 4 in this embodiment is provided with a sewage storage chamber 5 suction port corresponding to the sewage storage chamber 5, and the sewage storage chamber 5 suction port is connected to the negative pressure device of the host, and the sewage storage chamber 5 has an air inlet, and the air inlet is connected to the cleaning component of the host. Furthermore, the sewage tank head assembly 4 is also provided with a separation chamber 6 suction port corresponding to the separation chamber 6, and the separation chamber 6 suction port and the sewage storage chamber 5 suction port are connected to the negative pressure device of the host together, and the air inlet of the separation chamber 6 and the sewage storage chamber 5 are both connected to the cleaning component of the host.

[0047] Among them, Figure 4 ,5, a wave-proof sheet 13 is provided on the sewage tank head assembly 4 between the air inlet of the sewage storage chamber 5 and the first sensing portion 7. Specifically, there are two air inlets of the sewage storage chamber 5, which are respectively located above the first electrode member 9 and the second electrode member 10, and a wave-proof sheet 13 is provided between the first electrode member 9 and the corresponding air inlet of the sewage storage chamber 5.

[0048] For better explanation, the following is described in conjunction with specific embodiments:

[0049] The sewage tank assembly 2 in this embodiment is detachably mounted on the main unit 1 of the floor scrubber, the air outlet of the sewage tank assembly 2 is connected to the negative pressure device of the main unit, and the sewage tank air inlet of the sewage tank assembly 2 is connected to the cleaning unit of the main unit. With the ground as the horizontal reference, the angle between the main unit 1 and the ground can be any angle within the range of 0-90°, that is, the main unit 1 can rotate freely within the angle range, such as the main unit 1 is vertical or horizontal.

[0050] The sewage tank assembly 2 in this embodiment is composed of a sewage tank and a sewage tank head assembly 4. The sewage tank head assembly 4 can be installed in a sealed manner at the opening of the sewage tank. A rotatable partition 14 is provided on the sewage tank head assembly 4. The partition 14 can swing with the swing angle of the sewage tank assembly 2 under the action of gravity, and always maintains a tendency to rotate toward the vertical ground. Further, a sealing soft rubber is provided on the edge of the partition 14, and a connecting groove or through hole is provided on the sealing soft rubber. When the sewage tank assembly 2 is placed horizontally, the partition 14 is closed under the action of gravity, and the sealing soft rubber is tightly attached to the inner wall of the sewage tank under the action of gravity, dividing the inner cavity of the sewage tank into a sewage storage chamber 5 and a separation chamber 6. The sewage storage chamber 5 and the separation chamber 6 are connected through the connecting groove or through hole.

[0051] The sewage tank head assembly 4 is provided with a water full sensing device, which includes a first sensing part 7 arranged in the sewage storage chamber 5 and a second sensing part 8 in the separation chamber 6, and the first sensing part 7 and the second sensing part 8 each include two electrodes. The two sensing components are connected in parallel and are both connected to the controller on the host 1.

[0052] The first electrode member 9 in the first sensing part 7 has a probe protruding from the outside of the plastic, and the other probe is recessed inside the plastic, leaving only an opening in the direction perpendicular to the bottom of the sewage tank to sense the sewage. When the sewage in the sewage storage chamber 5 is used flat, waves will be generated. The recessed probe structure can reduce the probability of waves conducting the two probes, thereby improving the accuracy of water full judgment.

[0053] Furthermore, the sewage tank head assembly 4 is provided with a separation chamber air suction port 12 and a sewage storage chamber air suction port 11 at positions corresponding to the separation chamber 6 and the sewage storage chamber 5, respectively. In addition, in this embodiment, a wave-proof sheet 13 is provided between the sewage storage chamber air suction port 11 and the sewage tank storage chamber water full sensing probe, and the wave-proof sheet 13 can prevent sewage spray from splashing, so that it is sucked into the sewage storage chamber air suction port 11 when there is no water full sensing in the first sensing part 7. The two air suction ports of the sewage storage chamber finally meet at the junction of the two air suction ports and are discharged from the air outlet.

[0054] like Figure 6 and Figure 7 As shown, when the host 1 applies negative pressure to the air outlet of the sewage tank assembly 2, air, sewage and garbage enter the separation chamber 6 from the sewage tank air inlet. Since the space of the separation chamber 6 is larger than the sewage tank air inlet, the wind speed of the air decreases after entering the separation chamber 6. In addition, the separation chamber air inlet 12 and the sewage storage chamber air inlet 11 disperse the airflow, so that the wind speed of the airflow after entering the separation chamber 6 cannot carry sewage and garbage. At this time, if the host 1 is in an upright or tilted state, the partition 14 is in an open state, and the sewage and garbage fall directly into the sewage storage chamber 5 under the action of gravity; when the water level of the sewage storage chamber 5 rises to submerge the two sensing components, the controller controls the body 11 to shut down for protection.

[0055] If the host 1 is in a flat state, and the partition 14 is in a closed state, the sewage and garbage are separated by gravity in the separation chamber 6 and stay at the bottom of the separation chamber 6. Under the action of the sewage storage chamber suction port 11, the sewage storage chamber 5 continues to have airflow to push the sewage into the connecting groove, and the water that has entered the sewage storage chamber will not flow back to the separation chamber 6 under the action of air pressure, so that the sewage will not enter from the separation chamber suction port 12, and the negative pressure device will not be protected from water ingress, that is, the suction motor will not be protected from water ingress; and when the water level in the sewage storage chamber 5 rises to submerge the two sensing components, the controller controls the body 11 to shut down for protection. When the connecting groove is blocked by garbage and the sewage cannot enter the sewage storage chamber 5 from the connecting groove, sewage will accumulate in the separation chamber 6. At this time, under the action of wind, the shaking of the water splashes touches the two probes of the second sensing part 8, and the controller controls the body 11 to shut down for protection.

[0056] Another embodiment of the utility model also provides a floor scrubber, comprising a water full detection system as described in any one of the embodiments above.

[0057] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A water full detection system, applied to a floor scrubber, characterized in that: The water full detection system comprises: Sewage tank assembly; Among them, the sewage tank assembly includes a sewage tank and a sewage tank head assembly, a partition is provided in the sewage tank, and the partition can divide the inner cavity of the sewage tank into a sewage storage chamber and a separation chamber, the sewage storage chamber and the separation chamber are connected so that sewage can flow from the sewage storage chamber into the separation chamber, and the sewage tank head assembly includes a sensing module extending from the separation chamber to the sewage storage chamber, the sensing module has a first sensing part located in the sewage storage chamber, and has a second sensing part located in the separation chamber, and the first sensing part and the second sensing part are respectively used to sense the water fullness of the sewage storage chamber and the separation chamber.

2. The water full detection system according to claim 1, characterized in that: The sensing module is a dual-electrode sensing component, and the sensing module is connected to a controller in the floor scrubber so that the controller controls the operation of the floor scrubber accordingly based on sensing data of the first sensing part and / or the second sensing part.

3. The water full detection system according to claim 1, characterized in that: The sensing module includes a first electrode member and a second electrode member. The first electrode member and the second electrode member are located in the sewage storage chamber to form the first sensing portion. The first electrode member and the second electrode member are located in the separation chamber to form the second sensing portion.

4. The water full detection system according to claim 3, characterized in that: The first electrode member and the second electrode member each include a metal electrode body and an insulating layer surrounding the metal electrode body, one end of the first electrode member and the second electrode member located in the sewage storage chamber each forms a first sensing end, the metal electrode body at the first sensing end of the first electrode member extends out of the corresponding insulating layer, and the metal electrode body at the first sensing end of the second electrode member is at most flush with the end of the corresponding insulating layer; The second sensing portion includes two second sensing ends, and the two second sensing ends are respectively formed by the first electrode member and the exposed part of the metal electrode body of the second electrode member located in the separation chamber.

5. The water full detection system according to claim 1, characterized in that: The outer edge of the partition is provided with a sealing soft rubber. When the sewage tank moves to a horizontal state with the main machine, the partition rotates to a position against the inner wall of the sewage tank, and the gap between the partition and the inner wall of the sewage tank is sealed by the sealing soft rubber. The partition and / or the sealing soft rubber are provided with a through hole for allowing water in the sewage storage chamber to flow to the separation chamber.

6. The water full detection system according to claim 1, characterized in that: The sewage tank head assembly is provided with a sewage storage chamber suction port corresponding to the sewage storage chamber, the sewage storage chamber suction port is connected to the negative pressure device of the main unit, the sewage storage chamber has an air inlet, and the air inlet is connected to the cleaning assembly of the main unit.

7. The water full detection system according to claim 6, characterized in that: The sewage tank head assembly is provided with a separation chamber suction port corresponding to the separation chamber. The separation chamber suction port and the sewage storage chamber suction port are connected to the negative pressure device of the main unit, and the air inlet of the separation chamber and the air inlet of the sewage storage chamber are both connected to the cleaning assembly of the main unit.

8. The water full detection system according to claim 6, characterized in that: The sewage tank head assembly is provided with a wave-proof sheet between the air suction port of the sewage storage chamber and the sensing module.

9. The water full detection system according to claim 8, characterized in that: There are two air suction ports for the sewage storage chamber, which are respectively located above the first electrode member and the second electrode member. A wave-proof sheet is provided between the first electrode member, the second electrode member and the corresponding air suction ports for the sewage storage chamber.

10. A floor scrubber, characterized in that: It comprises a water full detection system as described in any one of claims 1-9.

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