Cleaning apparatus

Abstract

The application discloses a cleaning device, comprising: a hand-held frame, provided with a hand-holding end for an operator to hold the cleaning device; a cleaning head, arranged on one side of the hand-held frame, comprising a working brush, a water storage tank arranged on one side of the working brush, and a sewage suction port for recycling sewage in the water storage tank; a sewage extraction mechanism, comprising a suction channel and a suction power unit, the suction channel being in communication with the water storage tank; wherein the sewage suction port comprises a first sewage suction port and a second sewage suction port, the sewage extraction mechanism can recycle sewage received in the water storage tank through the first sewage suction port and / or the second sewage suction port, and the first sewage suction port and the second sewage suction port are respectively located at two ends of the length direction of the water storage tank. The cleaning device of the application can ensure that the sewage in the water storage tank is quickly sucked without leakage when the cleaning head is operated in different postures, thereby improving the cleaning effect and convenience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning, in particular to a cleaning equipment. BACKGROUND

[0002] The description in this section merely provides background information related to the present disclosure and does not constitute the prior art.

[0003] In recent years, with the continuous improvement of people's living standards, cars have entered thousands of households and become a daily means of transportation for families, thus bringing about the increasing demand for car cleaning. The common car washing methods at present include: manual car washing in car washing shops, automatic computer car washing, car washing by household car washing devices, and steam car washing. Both manual car washing in car washing shops and automatic computer car washing face the problems of long distance between car washing places and the residence of car owners, queuing and waiting, and large water consumption, which not only wastes water resources and time, but also incurs high car washing cost. The household car washing device has a portable water gun using a 12V power supply on the car, which needs at least one bucket of water. It is inconvenient to carry the large bucket of water upstairs and downstairs, and it also adds a lot of trouble to the user each time the car is washed, causing distress and being unsuitable for urban populations. The household car washing device using manual inflation as a power source is not only time-consuming and labor-intensive, but also very inconvenient to use. The water-saving steam car washing has high equipment cost, large size, and is not convenient to carry, and needs large heat source energy. Currently, gas and high-power electric heating are used, which brings about safety hazards.

[0004] Based on the above various inconveniences of car washing, a portable pressure cleaning device has emerged. It generally generates high-pressure water flow by, for example, a plunger pump to flush the surface of an object. Compared with the foregoing cleaning methods, the portable pressure cleaning device reduces water consumption and saves a lot of time to some extent, but the current portable pressure cleaning device still has high requirements for water quantity and water pressure. When cleaning, for example, cars, kitchens, bathrooms, and walls, the portable pressure cleaning device cannot be quickly used. For example, cars need to be cleaned at multiple angles and on multiple cleaning surfaces, and the portable pressure cleaning device still cannot quickly approach each surface to be cleaned. At the same time, there are cleaning surfaces on the roof or prohibited from being cleaned by pressure water flow, at which time the user needs to use a cleaning cloth for cleaning. For another example, when in some cleaning scenarios, the portable pressure cleaning device needs to be held and controlled to clean at multiple angles, which means that the user needs to overcome the backwash force of the pressure water flow and the gravity of the portable pressure cleaning device, and the operation experience is not good. In addition, after the dirt is removed by the pressure cleaning device, the dirt will flow down with the water flow, so that the surface that is not dirty or does not need to be cleaned will be contaminated and needs to be cleaned again. At the same time, the place for the user to wash the car in the city is limited, and the cleaning of the sewage after washing the car is also a difficult problem for the user.

[0005] It should be noted that the above description of the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of the present invention and facilitating understanding by those skilled in the art. It should not be assumed that the above technical solutions are known to those skilled in the art simply because they have been described in the background section of this invention. Summary of the Invention

[0006] The purpose of this invention is to provide a cleaning device that, when the cleaning head operates in different postures, ensures that the sewage in the water storage tank is quickly sucked up without leakage, thereby improving the cleaning effect and convenience.

[0007] The above-mentioned objectives of the present invention can be achieved by the following technical solutions:

[0008] This invention provides a cleaning device, including: a handheld frame with a hand grip for an operator to hold the cleaning device;

[0009] A cleaning head is provided on one side of the handheld frame. The cleaning head includes a working brush and a water storage tank provided on one side of the working brush. The water storage tank includes a suction port for collecting wastewater in the water storage tank.

[0010] The wastewater extraction mechanism includes a suction channel, a suction power unit, and a motor that drives the suction power unit to perform suction movements. The suction channel is connected to the water storage tank.

[0011] The sewage suction port includes a first sewage suction port and a second sewage suction port. The sewage extraction mechanism can collect sewage in the water storage tank through the first sewage suction port and / or the second sewage suction port. The first sewage suction port and the second sewage suction port are located at both ends of the length direction of the water storage tank.

[0012] In an embodiment of the present invention, the first suction port and the second suction port are located at positions offset from the center line of the length of the water storage tank to both ends of the water storage tank by a predetermined distance, wherein the predetermined distance is configured to be greater than or equal to 1 / 4 of the length of the water storage tank.

[0013] In an embodiment of the present invention, the suction channel includes a first inlet pipe and a second inlet pipe. Both the first inlet pipe and the second inlet pipe include an inlet end that extends into the inner cavity of the water storage tank for sewage absorption. The first suction port and the second suction port are configured to be formed by the inlet ends of the first inlet pipe and the second inlet pipe.

[0014] In an embodiment of the present invention, the water storage tank includes a shell, the first suction port and the second suction port are configured as through holes that penetrate at least a portion of the shell and communicate with the inner cavity of the water storage tank, and the suction channel is connected to the through holes to suck out sewage.

[0015] In an embodiment of the present application, the cleaning head has at least one of the following use postures: one of the first and second sewage suction ports is configured to allow the sewage generated by the working brush to flow therethrough; wherein the use postures include:

[0016] a first use posture in which one end of the length direction of the water storage tank is in a raised position relative to the other end in the direction of gravity, and a second use posture in which the first and second sewage suction ports are at the same horizontal level.

[0017] In an embodiment of the present application, further comprising: a switching mechanism;

[0018] The first sewage suction port is located at one end of the length direction of the water storage tank, and the second sewage suction port is located at the other end of the length direction of the water storage tank. When the cleaning device is in a first use posture in which one end of the length direction of the water storage tank is in a raised position relative to the other end in the direction of gravity, the switching mechanism is configured to close the passage between the first sewage suction port and the suction power unit, and open the passage between the second sewage suction port and the suction power unit.

[0019] In an embodiment of the present application, the switching mechanism includes a movable member and a driving unit, the driving unit being capable of driving or controlling the movement of the movable member to close or open the passage between at least one of the first and second sewage suction ports and the suction power unit.

[0020] In an embodiment of the present application, the movable member includes a first movable member and a second movable member arranged in the water storage tank, the first movable member being configured to open or close the first sewage suction port, and the second movable member being configured to open or close the second sewage suction port.

[0021] The driving unit includes an elastic member and a gravity block connected to each of the movable members, the elastic member being configured to provide an elastic force that causes each of the movable members to have a movement tendency to open the sewage suction port;

[0022] In a state where the gravity force borne by the gravity block is greater than the elastic force, the gravity block can drive one of the first and second movable members to move to open the corresponding sewage suction port; in a state where the gravity force borne by the gravity block is less than the elastic force, one of the first and second movable members closes the corresponding sewage suction port under the action of the elastic force.

[0023] In an embodiment of the present application, the suction passage includes a tee pipe, the tee pipe including a first water conveying pipe and a second water conveying pipe and at least one outlet pipe, the first and second water conveying pipes being capable of communicating with the water storage tank.

[0024] In the embodiments of the present application, the switching mechanism comprises a movable member and a driving unit, the driving unit comprises an angle sensor capable of detecting the inclination angle of the cleaning device and a control assembly capable of controlling the movement of the movable member according to the monitoring result of the angle sensor to close the passage between the first suction port located at one end of the elevated position of the water storage tank and the suction power unit and open the passage between the second suction port and the suction power unit.

[0025] In the embodiments of the present application, the movable member comprises two valves, and each of the two valves is installed in a corresponding water supply pipe; wherein the control assembly can control any of the valves to close or open the corresponding water supply pipe according to the detection result of the angle sensor.

[0026] In the embodiments of the present application, the switching mechanism is configured as a three-way valve, the three-way valve comprises two valve inlets connected with the first water supply pipe and the second water supply pipe respectively and one valve outlet connected with the outlet pipe, the three-way valve has an inner cavity, and the two valve inlets and the valve outlet are respectively connected with the inner cavity; the inner cavity is provided with a movable member, wherein the movable member is configured to move towards the valve inlets to close the passage between the first suction port located at one end of the elevated position of the water storage tank and the suction power unit and open the passage between the second suction port and the suction power unit.

[0027] In the embodiments of the present application, the movable member comprises a first movable member and a second movable member, and each of the first movable member and the second movable member is used to close the passage between the two valve inlets and the two water supply pipes;

[0028] at least one driving unit is arranged between the first movable member and the second movable member;

[0029] wherein, under the action of gravity, the driving unit drives the movement of the movable member, in the state that one of the movable members closes the corresponding valve inlet, the other movable member is separated from the corresponding valve inlet, and the valve outlet is connected with the other valve outlet.

[0030] In the embodiments of the present application, the movable member comprises a first movable member and a second movable member, and each of the first movable member and the second movable member is used to close the passage between the two valve inlets and the two water supply pipes;

[0031] The driving unit is one, located between the first movable element and the second movable element; the three-way valve is connected with a swing rod, the swing rod is connected with the driving unit; under the swing action of the swing rod, the swing rod can drive the driving unit to move towards one of the movable elements to block the corresponding valve inlet, and the other movable element is away from the corresponding other valve inlet.

[0032] In the embodiment of the present application, the inner cavity wall of the three-way valve is formed with a tapered portion for the movable element to move towards the corresponding valve inlet.

[0033] In the embodiment of the present application, the cleaning device further comprises:

[0034] The sewage tank, the sewage in the water storage tank can be sucked into the sewage tank through the suction power unit.

[0035] In the embodiment of the present application, the suction power unit is configured as one, and the suction power unit comprises:

[0036] The negative pressure generating mechanism arranged on the downstream side of the sewage tank, the negative pressure generating mechanism comprises a gas pump, the inlet of the gas pump is communicated with the sewage tank; or

[0037] The sewage pump through which the sewage flows and is sucked into the sewage tank, the sewage pump is one, the inlet of the sewage pump can be communicated with one end of the two ends of the sewage suction port, and the outlet of the sewage pump is communicated with the sewage tank.

[0038] In the embodiment of the present application, the suction power unit is configured as two, and the suction power unit comprises: a sewage pump arranged on the upstream side of the sewage tank;

[0039] The sewage pump is two, the first sewage suction port and the second sewage suction port are respectively communicated with two sewage pumps through a suction channel, and the outlets of the two sewage pumps are respectively communicated with the sewage tank through a sewage inlet pipe.

[0040] The present application also provides a cleaning device, comprising:

[0041] A hand-held frame;

[0042] A cleaning head comprising a cleaning head shell, a working brush rotatably connected to the cleaning head shell, and a water storage tank for collecting sewage, the water storage tank comprising a sewage suction port for absorbing sewage in the water storage tank, the cleaning head shell being provided with a sewage removal unit configured to act on the working brush to remove sewage on the working brush and guide the sewage to the water storage tank.

[0043] The suction port comprises a first suction port arranged at one end of the length direction of the water storage tank, and the first suction port is configured to open the inner cavity of the water storage tank to the free end in the length direction.

[0044] In the embodiment of the present application, the suction port further comprises a second suction port arranged at the other end of the length direction of the water storage tank, and the first suction port and the second suction port are both configured to open the inner cavity of the water storage tank to the free end in the length direction.

[0045] The cleaning device of the present application has the following characteristics and advantages: when the cleaning device is in use, the surface to be cleaned by the cleaning head has a slope, and at the two ends of the length direction of the cleaning head, one end is high and the other end is low, i.e. the two ends of the length direction of the cleaning head are different in height in the vertical direction Z, and in these conditions, the sewage stored in the water storage tank can be sucked into the corresponding suction channel by the suction power unit, and the suction port at the lower part of the water storage tank along the direction of gravity can always be connected to the suction power unit, effectively ensuring that the cleaning device can effectively suck sewage based on the actual conditions of the surface to be cleaned, and improving the universality and practicality of the use of the cleaning device of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort. In the drawings:

[0047] Figure 1 It is a perspective view of the cleaning device of the present application.

[0048] Figure 2 It is a first schematic diagram of the user operating the cleaning device for cleaning work, in which the distance between the cleaning head and the ground is less than the distance between the holding part and the ground, and one end of the sewage containing cavity is in a raised position and the other end is in a depressed position.

[0049] Figure 3 It is a second schematic diagram of the user operating the cleaning device for cleaning work, in which Figure 1 , in which the distance between the cleaning head and the ground is less than the distance between the holding part and the ground, and one end of the sewage containing cavity is in a raised position and the other end is in a depressed position.

[0050] Figure 4The third schematic diagram of the user operating the cleaning device to clean the vertical surface of the cleaning head, and one end of the sewage containing cavity is in the raised position, and the other end is in the depressed position.

[0051] Figure 5 The fourth schematic diagram of the user operating the portable cleaning device to clean the vertical surface of the cleaning head.

[0052] Figure 6 The fifth schematic diagram of the user operating the cleaning device to clean the vertical surface of the cleaning head.

[0053] Figure 7 The sixth schematic diagram of the user operating the cleaning device to clean the vertical surface of the cleaning head.

[0054] Figure 8 The seventh schematic diagram of the user operating the cleaning device to clean the vertical surface of the cleaning head.

[0055] Figure 9 The eighth schematic diagram of the user operating the cleaning device to clean the vertical surface of the cleaning head.

[0056] Figure 10 The schematic diagram of the connection structure of the cleaning head and the sewage pumping mechanism in the cleaning device of the present application.

[0057] Figure 11 The schematic diagram of the connection structure of the cleaning head and the sewage pumping mechanism in the cleaning device of the present application. Figure 1 The schematic diagram of the connection structure of the cleaning head and the sewage pumping mechanism in the cleaning device of the present application.

[0058] Figure 12 The schematic diagram of the connection structure of the cleaning head and the sewage pumping mechanism in the cleaning device of the present application.

[0059] Figure 13 The schematic diagram of the connection structure of the cleaning head and the sewage pumping mechanism in the cleaning device of the present application.

[0060] Figure 14 The schematic diagram of the connection structure of the cleaning head and the sewage pumping mechanism in the cleaning device of the present application. Figure 13 The schematic diagram of the connection structure of the cleaning head and the sewage pumping mechanism in the cleaning device of the present application.

[0061] Figure 15 The schematic diagram of the connection structure of the cleaning head and the sewage pumping mechanism in the cleaning device of the present application. Figure 13 The schematic diagram of the connection structure of the cleaning head and the sewage pumping mechanism in the cleaning device of the present application.

[0062] Figure 16 The schematic diagram of the connection structure of the cleaning head and the sewage pumping mechanism in the cleaning device of the present application.

[0063] Figure 17 Structure diagram of another embodiment of the switching mechanism of the cleaning device of the present application.

[0064] Figure 18 Structure diagram of another embodiment of the switching mechanism of the cleaning device of the present application.

[0065] Figure 19 Structure diagram of another embodiment of the switching mechanism of the cleaning device of the present application in use. Figure 1 .

[0066] Figure 20 Structure diagram of another embodiment of the switching mechanism of the cleaning device of the present application in use. Figure 2 .

[0067] Figure 21 Structure diagram of another embodiment of the switching mechanism of the cleaning device of the present application in use. Figure 3 .

[0068] Figure 22 Structure diagram of a variant embodiment of the switching mechanism shown in Figure 18 .

[0069] Figure 23 Structure diagram of the connection between the cleaning head and the sewage extraction mechanism of the cleaning device of the present application, wherein the sewage extraction mechanism is two sewage pumps.

[0070] Figure 24 Structure diagram of the connection between the cleaning head and the sewage extraction mechanism of the cleaning device of the present application, Figure 1 wherein the sewage extraction mechanism is a negative pressure generating mechanism.

[0071] Figure 25 Structure diagram of the connection between the cleaning head and the sewage extraction mechanism of the cleaning device of the present application, Figure 2 wherein the sewage extraction mechanism is a fan.

[0072] Figure 26 and Figure 27 Structure diagram of the state of the float when the cleaning head of the cleaning device of the present application is at different inclination angles.

[0073] Figure 28 Structure diagram of the connection between the sewage tank and the hand-held frame of the cleaning device of the present application.

[0074] Figure 29 Structure diagram of the cross-section of the water storage tank of the cleaning device of the present application.

[0075] Figure 30 Structure diagram of the working state of the cleaning device of the present application.

[0076] Figure 31 This is a schematic diagram of the connection between the cleaning head and the sewage extraction mechanism of the cleaning device of the present invention, which illustrates the flow direction of sewage in the water storage tank and sewage tank.

[0077] Figure 32 In a modified embodiment of the cleaning equipment of the present invention, the suction port is located on the bottom wall of the water storage tank.

[0078] Figure 33 This is a schematic diagram of the cleaning equipment of the present invention, wherein the cleaning equipment has a liquid supply mechanism.

[0079] Figure 34 for Figure 24 A schematic diagram of a modified embodiment of the cleaning equipment.

[0080] Figure 35 This is a schematic diagram showing the formation of the suction port from the inlet end of the suction channel.

[0081] Figure 36 This is a schematic diagram showing the open configuration of the suction port of the cleaning device of the present invention.

[0082] Figure 37 for Figure 36 A partial sectional view of the cleaning head structure.

[0083] Figure 38 This is a schematic diagram of another embodiment of the cleaning equipment of the present invention.

[0084] Icon labels:

[0085] 10. Cleaning head; 11. Working brush; 111. Frame; 112. Brush bristles; 113. Roller body; 114. Motor; 12. Water tank; 121. Bottom wall; 122. Side wall; 123. Sewage inlet; 124. Sewage suction port; 1241. First sewage suction port; 1242. Second sewage suction port; 125. Air return port; 126. First drainage surface; 127. Second drainage surface; 12a. Top end; 12b. Bottom end; 13. Squeegee; 14. Sealing cap; 16. Adaptive connector; 101. Water bag; 102. Hose;

[0086] 20. Handheld stand;

[0087] 30. Sewage extraction mechanism; 31. Sewage pump; 311. Inlet; 312. Outlet; 32. Sewage tank; 33. Exhaust structure; 331. Float; 332. Counterweight; 333. Exhaust port; 334. Connecting pipe; 34. Return air pipe; 35. Negative pressure generating mechanism; 351. Air inlet; 352. Air outlet; 301. Suction channel; 3011. First inlet pipe; 3012. Second inlet pipe;

[0088] 40. Battery pack;

[0089] 50, switching mechanism; 51, movable element; 511, baffle; 512, valve body; 52, driving unit; 521, elastic element; 522, gravity block; 523, flexible connecting element; 524, fulcrum; 525, angle sensor; 526, control assembly; 53, tee pipe; 531, water delivery pipe; 532, outlet pipe; 54, first valve; 55, second valve; 56, three-way valve; 561, valve body; 5611, inner cavity; 5612, tapered portion; 562, valve inlet; 563, valve outlet; 564, movable element; 5641, first movable element; 5642, second movable element; 565, driving unit; 566, swing rod; 567, pendulum;

[0090] 60, water supply system; 61, cleaning liquid tank; 62, cleaning liquid pump; 63, liquid suction pipeline; 64, jetting pipeline; 641, jetting port;

[0091] 70, sewage;

[0092] 100, automobile.

[0093] X, length direction; Y, longitudinal direction; Z, vertical direction; C, center; L1, first position; L2, second position. DETAILED DESCRIPTION

[0094] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0095] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "counterclockwise", "clockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0096] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and are not used to denote or imply relative importance or a number of indications of the technical features indicated. Thus, the technical features defined with "first", "second", etc. can explicitly or implicitly include at least one of the technical features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0097] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0098] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0099] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0100] As described in the background, the existing portable cleaning equipment and the floor cleaning equipment in the prior art cannot meet the dual requirements of multi-angle cleaning and rapid recovery of sewage. Therefore, a cleaning equipment is proposed for this demand.

[0101] As Figures 1 to 10As shown, the present application provides a cleaning device, comprising a cleaning head 10, a hand-held frame 20 and a sewage suction mechanism 30, wherein: the hand-held frame 20 is provided with a hand-held end for an operator to hold the cleaning device; the cleaning head 10 is arranged on one side of the hand-held frame 20, and the cleaning head 10 comprises a working brush 11, a water storage tank 12 arranged on one side of the working brush 11, and a sewage suction port 124 for recycling sewage 70 in the water storage tank 12; the sewage suction mechanism 30 comprises a suction channel 301 and a suction power unit, and the suction channel 301 is in communication with the water storage tank 12; wherein the sewage suction port 124 comprises a first sewage suction port 1241 and a second sewage suction port 1242, and the sewage suction mechanism 30 can recycle the sewage 70 received in the water storage tank 12 through the first sewage suction port 1241 and / or the second sewage suction port 1242, and the first sewage suction port 1241 and the second sewage suction port 1242 are respectively located at both ends of the length direction of the water storage tank 12.

[0102] The cleaning device of the present application, the hand-held frame 20 is arranged along the longitudinal direction Y to be pulled away from the cleaning head 10 in the longitudinal direction Y by a certain distance, facilitating hand-held operation, so that the cleaning head 10 can clean the surface to be cleaned, such as the surface of the vehicle body of the vehicle 100. Of course, the surface to be cleaned in the present application is not limited to the surface of the vehicle body, for example, it can also be a wall surface, etc.

[0103] In the present application, "multi-cleaning surface" can be understood as the cleaning head 10 of the cleaning device being able to clean horizontal surfaces, inclined surfaces, vertical surfaces, etc. In the process of cleaning different cleaning surfaces, the cleaning head 10 of the portable cleaning device will present Figure 2 , Figure 4 , Figure 6 a plurality of different use postures. For example, referring to Figure 10 , if the horizontal surface (ground) is taken as the reference plane, the angle of the length direction X of the cleaning head 10 relative to the horizontal plane can be any angle, that is, the two ends of the length direction X of the cleaning head 10 are different in height in the vertical direction Z (i.e. the direction of gravity) due to the different slopes of different cleaning surfaces.

[0104] "Multi-angle" can be understood as the portable cleaning device having a plurality of working positions in which the distance between the hand-held end of the cleaning device held by the user and the ground and the distance between the cleaning head 10 and the ground present different results during actual cleaning. For example, the user can hold the hand-held frame 20, and the cleaning head 10 as a whole is in an upper position relative to the hand-held frame 20 (as shown in Figure 9 ), in a lower position (as shown in Figure 2 , Figure 3 ), or the cleaning head 10 and the hand-held frame 20 are substantially at the same height (as shown in Figure 6 ), etc. for cleaning, and the above three use modes can be used in combination.

[0105] As mentioned above, the cleaning head 10 can be lifted as a whole in the vertical direction Z relative to the hand-held frame 20, while one end of the cleaning head 10 in the length direction X (e.g. the end close to the inner side of the drawing surface in the figure) is lifted in the vertical direction Z relative to the other end of the cleaning head 10, so that the length direction X of the cleaning head 10 forms an angle with the horizontal plane. Figure 9 Figure 9

[0106] In the specific use of the cleaning device, when the surface to be cleaned by the cleaning head 10 has a slope, one end of the cleaning head 10 in the length direction X is higher and the other end is lower, that is, the two ends of the cleaning head 10 in the length direction X are different in height in the vertical direction Z. In this state, the sewage 70 stored in the water storage tank 12 can be sucked into the corresponding suction channel 301 by the suction power unit, and the sewage suction port located at the lower part of the water storage tank 12 (one end of the low position of the water storage tank) can always be connected to the suction power unit in the direction of gravity, effectively ensuring the effective sewage suction operation of the cleaning device based on the actual conditions of the surface to be cleaned, and improving the universality and practicality of the use of the cleaning device.

[0107] Specifically, as shown in Figure 10 , the cleaning head 10 includes a working brush 11 and a water storage tank 12 arranged on one side of the working brush 11. The working brush 11 is used to clean the surface to be cleaned, and the water storage tank 12 is used to collect the sewage 70 after cleaning, that is, the sewage 70 can be stored in the water storage tank 12. In combination with Figure 1 and Figure 11 , the working brush 11 includes a skeleton 111, a roller body 113 with bristles 112 mounted on the skeleton 111, and a motor 114. The motor 114 is in transmission connection with the roller body 113 to drive the roller body 113 to rotate the bristles 112. The water storage tank 12 and the hand-held frame 20 are both connected to the skeleton 111. The water storage tank 12 and the skeleton 111 can be integrally arranged or detachably connected. The working brush 11 is specifically configured as a rolling brush.

[0108] As shown in Figure 1 ​​As shown, the handheld frame 20 is further provided with a battery pack 40 for providing power to the motor 114. The battery pack 40 is detachably arranged at the end of the handheld frame 20 away from the cleaning head 10. The battery pack 40 can be lithium, but is not limited thereto. The longitudinal direction Y is arranged at an angle to the axial direction of the working brush 11 (i.e. the axial direction of the roller body 113), and specifically, the two are perpendicular to each other. The water storage tank 12 is arranged along the axial direction of the working brush 11, and has a length matching the axial length of the working brush 11, so as to be able to collect the sewage 70 from all parts of the working brush 11 in the axial direction. In this embodiment, the axial direction of the working brush 11 is the length direction X of the cleaning head 10. When the working brush 11 changes in position in the vertical direction Z relative to the handheld frame 20 or changes in angle relative to the horizontal plane, it can be considered that the working angle of the cleaning head 10 has changed.

[0109] The sewage 70 in this embodiment refers to the waste liquid after cleaning. Correspondingly, the fresh liquid before cleaning is referred to as clean water, which includes clean water, clean water containing cleaning liquid, etc., and the specific type is not limited. In specific use, the working brush 11 is soaked with clean water, and the source of the clean water can be soaking the working brush 11 in a clean water pool, flushing under clean water, an independent clean water spraying accessory, or the like. Figure 1 As shown, the handheld frame 20 is further provided with a battery pack 40 for providing power to the motor 114. The battery pack 40 is detachably arranged at the end of the handheld frame 20 away from the cleaning head 10. The battery pack 40 can be lithium, but is not limited thereto. The longitudinal direction Y is arranged at an angle to the axial direction of the working brush 11 (i.e. the axial direction of the roller body 113), and specifically, the two are perpendicular to each other. The water storage tank 12 is arranged along the axial direction of the working brush 11, and has a length matching the axial length of the working brush 11, so as to be able to collect the sewage 70 from all parts of the working brush 11 in the axial direction. In this embodiment, the axial direction of the working brush 11 is the length direction X of the cleaning head 10. When the working brush 11 changes in position in the vertical direction Z relative to the handheld frame 20 or changes in angle relative to the horizontal plane, it can be considered that the working angle of the cleaning head 10 has changed.

[0110] In order to quickly recycle the sewage 70 on the bristles 112 and store it in the water storage tank 12, as shown in Figure 11 and Figure 12 The skeleton 111 is further provided with a sewage removal unit extending towards the roller body 113, specifically a water scraping strip 13, which interferes with the bristles 112 and is located on the rotating path of the bristles 112. The water storage tank 12 has a sewage inlet 123 located on one side of the water scraping strip 13 and opening towards the interference position of the water scraping strip 13 and the bristles 112. When the angle of the cleaning device is Figure 1 as shown, the sewage inlet 123 of the water storage tank 12 is located below the water scraping strip 13. As shown in Figure 11 When the cleaning device is in use, the roller body 113 rotates in the counterclockwise direction, the end of the water scraping strip 13 contacts the bristles 112, and continuously scrapes the sewage 70 on the bristles 112 into the water storage tank 12. By arranging the water scraping strip 13, the sewage 70 recycling efficiency is improved, and the high requirement of automatic cleaning can be met.

[0111] In combination withFigure 1 As shown, the wiper strip 13 is integrated on a sealing cover 14. The sealing cover 14 is detachably mounted on the skeleton 111. After the sealing cover 14 is mounted, the sealing cover 14 just covers the water storage tank 12 from above, so that the upper part of the water storage tank 12 is only communicated with the outside through the dirty water inlet 123. At the same time, the wiper strip 13 extends towards the roller body 113 and just interferes with the brush 112, so that the dirty water 70 on the brush 112 can be scraped into the water storage tank 12. By setting the detachable sealing cover 14, the inside of the water storage tank 12 can be conveniently cleaned.

[0112] As shown in FIG. 1, Figure 1 and Figure 10 As shown, the dirty water extraction mechanism 30 is communicated with the water storage tank 12 and can transfer the dirty water 70 in the water storage tank 12 out of the water storage tank 12, so as to adapt to the requirement of continuous cleaning operation.

[0113] As shown in FIG. 1, Figures 10 to 12 In order to enable the dirty water extraction mechanism 30 to quickly transfer the dirty water 70, in the embodiment in which the cleaning head 10 has the dirty water suction port arranged only in one area, specifically, the number of the dirty water suction port in the single area can be one or multiple close to each other. The inner cavity volume of the dirty water storage tank 12 is arranged in a tapering manner from the dirty water inlet 123 to the dirty water suction port 124 of the water storage tank 12.

[0114] In a feasible embodiment, the dirty water inlet 123 is arranged at the upper part of the water storage tank 12, the dirty water suction port 124 is located at the lower part of the water storage tank 12 and is communicated with the outside, and the water storage tank 12 is in an upper large and lower small shape, that is, the water storage tank 12 is in a funnel shape or a conical structure. At this time, after the dirty water 70 enters from the dirty water inlet 123, the dirty water 70 can converge to the lower part of the water storage tank 12, so that the dirty water 70 has a higher water level at the lower part of the water storage tank 12, which is convenient for the extraction of the dirty water extraction mechanism 30. In the present application, as shown in FIG. 1, Figure 11 The upper part of the water storage tank 12 can be understood as the part above the center C of the water storage tank 12 in the depth direction of the water storage tank 12, and correspondingly, the lower part of the water storage tank 12 can be understood as the part below the center C of the water storage tank 12 in the depth direction of the water storage tank 12. Understandably, the lower the position of the dirty water suction port 124 is, the better.

[0115] As shown in FIG. 1, Figure 11 The water storage tank 12 includes a bottom wall 121 and a side wall 122 connected to the bottom wall 121, the side wall 122 and the bottom wall 121 surround the inner cavity of the water storage tank 12, the dirty water inlet 123 is arranged on the side wall 122, and the dirty water suction port 124 is arranged on the bottom wall 121 of the water storage tank 12. Since the water storage tank 12 is in an upper large and lower small funnel shape, the dirty water 70 can converge to the bottom wall 121, so as to facilitate the extraction of the dirty water extraction mechanism 30. In addition, as shown in FIG. 1, Figure 10As shown, the suction port 124 can also be arranged on the side wall 122 near the bottom wall 121, which is also conducive to the extraction of the sewage 70. It can be understood that when the cleaning device is used, the angle of the cleaning head 10 should be changed on the premise that the water storage tank 12 is at least partially in a position capable of collecting sewage 70. Specifically, the sewage inlet 123 of the water storage tank 12 is at least partially below the interference position of the wiper strip 13 and the bristles 112.

[0116] In this embodiment, when the cleaning head 10 changes in position in the vertical direction relative to the hand-held frame 20 or the cleaning head 10 itself changes in angle relative to the horizontal plane, the water storage tank 12 is displaced relative to the cleaning head 10. Specifically, the water storage tank 12 can be rotated relative to the cleaning head or the form of the water storage tank 12 itself can be changed, so that the sewage 70 in the water storage tank 12 can all flow to the lower part of the water storage tank 12 in the direction of gravity, thereby facilitating the suction of the sewage 70 from the suction port 124 located in the lower part of the water storage tank 12 in the direction of gravity.

[0117] When the two ends (referred to as A end and B end in Figure 10 ) of the water storage tank 12 are different in height in the vertical direction Z, it is conducive to the rapid absorption of the sewage 70. And when the two ends of the water storage tank 12 are the same in height in the vertical direction Z, it is also conducive to the rapid absorption of the sewage 70. When the two ends of the water storage tank 12 change in height, it reflects that the working angle of the cleaning device is changing. Therefore, the cleaning device of the present embodiment can meet the dual requirements of multi-angle cleaning and rapid recovery of sewage 70.

[0118] Further, as shown in Figure 10 and Figure 11 , in the direction towards the hand-held frame 20, the cross-sectional area of the inner cavity of the water storage tank 12 gradually decreases. That is, in the direction that forms an acute angle with the longitudinal direction Y and is close to the hand-held frame 20, the cross-sectional area of the water storage tank 12 gradually decreases, so that the water storage tank 12 extends obliquely away from the working brush 11 and close to the hand-held frame 20. In this way, when the cleaning head 10 is raised or substantially flush relative to the hand-held frame 20 in the vertical direction, the sewage 70 can quickly flow to the lower part of the water storage tank 12, which can speed up the recovery of the sewage 70. Moreover, the water storage tank 12 extends obliquely, so the water storage tank 12 is closer to the sewage extraction mechanism 30 on the hand-held frame 20, and the sewage 70 flowing into the water storage tank 12 can be close to the sewage extraction mechanism 30, which is conducive to shortening the suction path, thereby speeding up the recovery of the sewage 70.

[0119] As shown in Figure 12As shown, in another possible embodiment, the water storage tank 12 can also be configured to include a portion capable of changing shape following the angle change of the cleaning head 10. Specifically, the water storage tank 12 includes a flexible water bag 101 capable of changing shape following the angle change of the cleaning head 10, and the suction port 124 is arranged at the bottom of the water bag 101. Wherein Figure 12 The shape change of the water bag 101 when the angle of the cleaning head 10 changes is shown by a dashed line. Specifically, when the water storage tank 12 stores sewage 70, when the angle of the cleaning head 10 changes, the shape of the water storage tank 12 changes under the action of the gravity of the sewage 70, so that the water storage tank 12 can always quickly collect and store sewage 70, allowing the cleaning head 10 to clean in a larger angle range.

[0120] In the present application, in the embodiment in which the cleaning head 10 has suction ports arranged at both ends of the length direction of the water storage tank 30, i.e. in different areas. Specifically, the suction port includes a first suction port 1241 and a second suction port 1242. Preferably, the number of the first suction port 1241 and the second suction port 1242 is one. Of course, the number of the first suction port 1241 and the second suction port 1242 can also be multiple respectively. The first suction port 1241 and the second suction port 1242 are located at a position deviated from the center line of the length of the water storage tank 12 to both ends by a preset distance, and the preset distance is configured to be greater than or equal to 1 / 4 of the length of the water storage tank 12. Preferably, if the first suction port 1241 and the second suction port 1242 are both configured to be multiple, at least one suction port at both ends of the water storage tank 30 is located within the above deviation range of the preset distance. Wherein, the first suction port 1241 and the second suction port 1242 are symmetrically arranged about the center line. Wherein the center line can be understood as being located at the middle part of the length direction (X direction) of the water storage tank. The center line is perpendicular to the rotation axis of the working brush.

[0121] Further, in a possible embodiment of the suction port, as Figure 35 As shown, the suction channel 301 includes a first inlet pipe 3011 and a second inlet pipe 3012, and the first inlet pipe 3011 and the second inlet pipe 3012 both include an inlet end extending into the inner cavity of the water storage tank 12 to absorb sewage 70, and the first suction port 1241 and the second suction port 1242 are configured by the inlet end of the first inlet pipe 3011 and the second inlet pipe 3012.

[0122] In another possible embodiment of the suction port, the water storage tank 12 includes an outer shell surrounding to form a water storage inner cavity, and the first suction port 1241 and the second suction port 1242 are configured as through holes penetrating at least part of the outer shell and communicating with the inner cavity of the water storage tank 12, and the suction channel 301 connects the through holes to suck out the sewage 70.

[0123] In the present application, the cleaning head 10 has at least one of the following use postures: one of the first suction port 1241 and the second suction port 1242 is configured to allow the sewage 70 generated by the working brush 11 to flow therethrough; wherein the use postures include a first use posture in which one end of the length direction of the water storage tank 12 is raised relative to the other end in the direction of gravity, and a second use posture in which the first suction port 1241 and the second suction port 1242 are at the same horizontal plane.

[0124] According to one embodiment of the present application, as shown in Figure 13 the cleaning device further comprises a switching mechanism 50, the first suction port 1241 is located at one end of the length direction of the water storage tank 12, the second suction port 1242 is located at the other end of the length direction of the water storage tank 12, and when the cleaning device is in a first use posture in which one end of the length direction of the water storage tank 12 is raised relative to the other end in the direction of gravity, the switching mechanism 50 is configured to close the passage of the first suction port 1241 and the suction power unit, and open the passage of the second suction port 1242 and the suction power unit.

[0125] In a feasible embodiment, the switching mechanism 50 includes a movable part 51 and a driving unit 52, the driving unit 52 being capable of driving or controlling the movement of the movable part 51 to close or open the passage of one of the first suction port 1241 and the second suction port 1242 and the suction power unit.

[0126] Specifically, referring to Figure 14 and Figure 15 , the movable part 51 includes a first movable part and a second movable part arranged in the water storage tank 12, the first movable part being configured to open or close the first suction port 1241, and the second movable part being configured to open or close the second suction port 1242. In this embodiment, the first movable part and the second movable part are both baffles 511, and the two baffles 511 are arranged in the water storage tank 12 and correspond to the first suction port 1241 and the second suction port 1242 respectively.

[0127] In this embodiment, the drive unit 52 is a gravity sensing unit, which can be manually controlled or operate automatically according to the angle change of the cleaning head 10. There are two drive units 52, each including an elastic element 521 and a gravity block 522 respectively connected to the movable element 51. The elastic element 521 is configured to provide an elastic force that tends to open the suction port of the movable element 51. When the gravity on the gravity block 522 is greater than the elastic force, the gravity block 522 can drive the baffle 511 (i.e., one of the first and second movable elements) to move and open the corresponding suction port. When the gravity on the gravity block 522 is less than the elastic force, the baffle 511 (i.e., one of the first and second movable elements) closes the suction port under the action of the elastic force. That is, when the corresponding suction port is raised relative to another suction port, the gravity sensing unit provides a driving force to the baffle 511 to approach the suction port until the raised suction port is closed.

[0128] In this embodiment, the elastic element 521 is configured to provide an elastic force that moves the baffle 511 away from the suction port, and the gravity borne by the weight block 522 is greater than the elastic force. Figure 14 and Figure 15 As shown, along the axial direction of the working brush 11, the gravity block 522 has a first position L1 away from the suction port 124 and a second position L2 near the suction port 124, with the first position L1 being closer to the other suction port 124. The gravity block 522 can switch between the first position L1 and the second position L2 under the action of gravity, and can move to the lower of the first position L1 and the second position L2 in the vertical direction. Specifically, refer to... Figure 14 and combined Figure 13 As shown, in the vertical direction Z, the second position L2 is lower, and gravity block 522 is located in the second position L2; (reference) Figure 15 and combined Figure 13 As shown, when the cleaning head 10 is turned so that the first position L1 is lowered, the gravity block 522 moves to the first position L1 under the action of gravity.

[0129] like Figure 15 As shown, when gravity block 522 is in the first position L1, the gravity of gravity block 522 is transmitted to baffle 511 and its gravity is greater than the elastic force, so baffle 511 closes the corresponding suction port. Figure 14As shown, when the gravity block 522 is in the second position L2, the gravity block 522 does not act on the baffle 511, and the elastic force of the elastic member 521 causes the baffle 511 to open the corresponding dirt suction port. Since the first position L1 is close to another dirt suction port, when the first position L1 of a gravity block 522 corresponding to a certain dirt suction port is below the second position L2 of the gravity block 522, it means that the dirt suction port is vertically above another dirt suction port. Therefore, as long as the first dirt suction port 1241 and the second dirt suction port 1242 have a height difference in the vertical direction Z, the gravity block 522 corresponding to the dirt suction port at the higher position will move to its first position L1, thereby achieving the purpose of closing the dirt suction port at the higher position; at the same time, the gravity block 522 corresponding to the dirt suction port at the lower position will move to its second position L2, and the gravity of the gravity block 522 does not act on the baffle 511, and the elastic force causes the baffle 511 to open the dirt suction port. Specifically, as shown in FIG. 12, the first dirt suction port 1241 and the second dirt suction port 1242 are arranged vertically, the upper first dirt suction port 1241 is closed by the baffle 511, and the lower second dirt suction port 1242 is in an open state. Figure 13

[0130] In a specific implementation, the gravity block 522 is arranged in the water storage tank 12, the water storage tank 12 is provided with a fulcrum 524, and the driving unit 52 further includes a flexible connecting member 523, a first end of the flexible connecting member 523 is connected to the gravity block 522, a second end of the flexible connecting member 523 is arranged to pass by one side of the fulcrum 524 and is connected to one end of the movable member 51 close to the corresponding dirt suction port, and in a state where the gravity of the gravity block 522 is greater than the elastic force, the flexible connecting member 523 is tensioned and abuts against the fulcrum 524.

[0131] In this embodiment, the elastic member 521 is preferably a tension spring, which always gives the baffle 511 a pulling force, so that the baffle 511 always has a movement tendency away from the dirt suction port 124. Therefore, when the gravity block 522 moves to its first position L1, the gravity block 522 tension the flexible connecting member 523, causing the baffle 511 to move in a direction opposite to the direction of the gravity of the gravity block 522, and finally block the dirt suction port 124.

[0132] Preferably, the fulcrum 524 is arranged as a fixed pulley, which facilitates the sliding of the flexible connecting member 523 on the fulcrum 524. In addition, preferably, the gravity block 522 is spherical, which can switch between the first position L1 and the second position L2 in a rolling manner.

[0133] ​In other embodiments, the gravity sensing unit can also be configured such that the elastic member 521 is configured to always give the baffle plate 511 a pushing force, so that the baffle plate 511 always has a tendency to close the corresponding sewage suction port. The gravity block 522 can change positions to exert gravity on the baffle plate 511 to overcome the pushing force of the elastic member 521 to open the corresponding sewage suction port, or the gravity block 522 can not exert gravity on the baffle plate 511, so that the baffle plate 511 blocks the corresponding sewage suction port under the pushing force of the elastic member 521. Specifically, the gravity block 522 is still defined to have a first position L1 away from the sewage suction port and a second position L2 close to the sewage suction port, and the first position L1 is close to another sewage suction port. The gravity block 522 can switch between the first position L1 and the second position L2 under the action of gravity, and move to the lower one of the first position L1 and the second position L2 in the vertical direction. In this embodiment, when the gravity block 522 moves to the second position L2, the gravity block 522 can abut against the baffle plate 511, thereby pressing the baffle plate 511 against the corresponding sewage suction port, thereby blocking the sewage suction port. Conversely, when the gravity block 522 is at the first position L1, away from the baffle plate 511, the gravity block 522 cannot press the baffle plate 511 towards the corresponding sewage suction port, and the sewage suction port is in an open state.

[0134] In the above embodiment, the driving unit 52 can automatically drive the movable member 51 to block the sewage suction port at the higher position according to the change in the angle of the cleaning head 10, so as to form a pressure difference between the inside and outside of the water storage tank 12, so that the sewage suction port below the water storage tank in the direction of gravity can smoothly suck the sewage 70. In this embodiment, only one suction power unit can be provided, which saves costs. By providing the switching mechanism 50, the sewage suction port below the water storage tank 12 in the direction of gravity is automatically opened, and the sewage suction port above the water storage tank 12 in the direction of gravity is automatically closed, so that the sewage 70 can be quickly sucked when the angle of the cleaning head 10 changes.

[0135] In another possible embodiment of the switching mechanism 50, as shown in Figure 16 the driving unit 52 includes an angle sensor 525 and a control assembly 526. The angle sensor 525 can detect the inclination angle of the cleaning device, and the control assembly 526 can control the movement of the movable member 51 according to the monitoring result of the angle sensor 525 to close the first sewage suction port 1241 at one end of the water storage tank 12 in the raised position and the passage of the suction power unit, and open the second sewage suction port 1242 and the passage of the suction power unit. In this embodiment, the angle sensor 525 can be pre-configured to establish a horizontal reference datum and a corresponding relationship with the first sewage suction port 1241 and the second sewage suction port 1242, so that when the first sewage suction port 1241 and the second sewage suction port 1242 have a height difference in the vertical direction, it can be determined who is higher and who is lower.

[0136] Specifically, the suction channel 301 includes a three-way pipe 53, which includes a first water supply pipe 531, a second water supply pipe 531, and at least one water outlet pipe 532. The two water supply pipes 531 are respectively connected to the water storage tank 12. The number of the first and second water supply pipes 531 can be one or more. In this embodiment, the two water supply pipes 531 are respectively connected to the first inlet pipe 3011 and the second inlet pipe 3012 of the suction channel. Of course, in the embodiment of the three-way pipe, the first and second water supply pipes 531 can directly serve as the first and second inlet pipes of the suction channel. The movable component 51 includes two valves, namely a first valve 54 and a second valve 55, which are installed in the two water supply pipes 531 in a one-to-one correspondence. The control component 526 can control any valve to block or open the corresponding water supply pipe 531 based on the detection result of the angle sensor 525.

[0137] In this embodiment, the angle sensor 525 detects the tilt angle of the first suction port 1241 and the second suction port 1242. Based on the monitoring result of the angle sensor 525, the control component 526 controls the valve positioned lower in the vertical direction Z to open, and the valve positioned higher to close. Specifically, both the angle sensor 525 and the control component 526 are mounted on the main board and then installed on... Figure 1 The handheld device 20 is shown. Of course, in other embodiments, the angle sensor 525 can also directly establish a correspondence with the first valve 54 and the second valve 55, directly detecting whether the first valve 54 and the second valve 55 are raised or lowered relative to the horizontal reference base, and then issuing corresponding action commands using the control component 526. For example, when the first valve 54 is located below, the corresponding suction port of the first valve 54 is also located below. At this time, the first valve 54 is opened, and the second valve 55 is closed, so that the sewage 70 flows downwards, accelerating the sewage extraction mechanism 30's extraction. Of course, the angle sensor 525 can also be pre-set to establish a horizontal reference base and a correspondence with the two valves.

[0138] Furthermore, the control component 526 includes a controller and a control circuit. The controller controls the movement of the first valve 54 and the second valve 55 through the control circuit. The type of controller is not limited; it can be an embedded digital signal processor (DSP), a microprocessor (MPU), etc. The two valves can be electric ball valves, but are not limited to these.

[0139] In this embodiment, the two valves can be replaced by elements capable of moving relative to the water pipes 531 to block or open the corresponding water pipes 531. Specifically, the two water pipes 531 are respectively connected with the first and second suction ports 1241 and 1242, and the outlet pipe 532 is connected with the sewage tank 32. The control assembly 526 can control the reciprocating movement of the movable element 51 to selectively block one of the two water pipes 531. For example, as shown in Figure 16 the movable element 51 is located at the left water pipe 531 and blocks it, and at this time the right water pipe 531 is in an open state. As shown in Figure 16 the movable element 51 moves to the right, and the movable element 51 blocks the right water pipe 531, and at this time the left water pipe 531 is in an open state.

[0140] In addition, the movable element 51 can also be rotatably arranged inside the water pipe 531, and the rotation plane of the movable element 51 is perpendicular to the axial direction of the water pipe 531. In this way, by rotating the movable element 51, the purpose of blocking or opening the water pipe 531 can be achieved. It can be understood that at this time, each of the two water pipes 531 is provided with a movable element 51. For example, the movable element 51 can be the valve body of an electromagnetic valve. The control assembly 526 controls the valve body of the corresponding electromagnetic valve to block the corresponding water pipe 531 according to the monitoring result of the angle sensor 525.

[0141] In a variant embodiment, as shown in Figure 17 different from the embodiment shown in Figure 16 the movable element 51 includes the valve body 512 of an electromagnetic valve, and the movable element 51 can reciprocate between the two water pipes 531 to selectively block one of the water pipes 531, so that the cleaning device forms a pressure difference between the inside and outside of the water tank 12, and the sewage 70 can be sucked from the suction port with a lower position in the vertical direction.

[0142] In another feasible embodiment of the switching mechanism 50, the two ends of the water tank 12 are respectively provided with the first and second suction ports 1241 and 1242, and the switching mechanism 50 is configured as a three-way valve 56. The three-way valve 56 includes two valve inlets 562 respectively connected with the two water pipes 531, and one valve outlet 563 connected with the outlet pipe 532. The three-way valve 56 has an inner cavity 5611, and the two valve inlets 562 and the valve outlet 563 are respectively connected with the inner cavity 5611. The inner cavity 5611 is provided with a movable element 564, and the movable element 564 is configured to move towards the valve inlet 562 to block the passage between the first suction port 1241 at the elevated position of the water tank 12 and the suction power unit, and open the passage between the second suction port 1242 and the suction power unit.

[0143] Specifically, the three-way valve 56 has a valve body 561 formed with an inner cavity 5611, two valve inlets 562 respectively communicating with the first and second sewage suction ports 1241 and 1242 at two ends of the water storage tank 12, and the valve body 561 having an inner cavity 5611, two valve inlets 562 and a valve outlet 563 respectively communicating with the inner cavity 5611; the inner cavity 5611 of the valve body 561 is provided with: a movable member 564 for plugging the two valve inlets 562.

[0144] In the embodiment, the movable member 564 includes a first movable member 5641 and a second movable member 5642 respectively for plugging the passages between the two valve inlets 562 and the two water delivery pipes 531; at least one driving unit 565 is arranged between the two first movable members 5641 and the second movable member 5642; under the action of gravity, the driving unit 565 drives the movable member 564 to move, in the state that one of the movable members 564 plugs the corresponding valve inlet 562, the other movable member 564 is separated from the corresponding other valve inlet 562, and the valve outlet 563 communicates with the other valve inlet 562.

[0145] Specifically, in a feasible embodiment, as shown in Figures 18 to 21 the driving unit 565 is two, arranged between the first movable member 5641 and the second movable member 5642; in the state that one of the movable members 564 plugs the corresponding valve inlet 562, the other movable member 564 is separated from the corresponding other valve inlet 562, and the valve outlet 563 communicates with the other valve inlet 562.

[0146] In the embodiment, the movable member 564 can be a stainless steel ball, and the driving unit 565 can also be a stainless steel ball, and the outer diameter of the driving unit 565 is greater than that of the movable member 564, so as to facilitate the movement of the movable member 564.

[0147] When the cleaning equipment works in the clockwise inclined state, the internal state of the three-way valve 56 is as shown in Figure 19 When the sewage extraction mechanism 30 is opened, the four stainless steel balls in the three-way valve 56 slide down along the slope, and the pressure of the valve inlet 562 of the valve body 561 is F=2×(M1+M2)g×sinθ, wherein 90°≥ θ≥ 0°, and M1 is the mass of the movable member 564, and M2 is the mass of the driving unit 565, both in grams. At this time, the bottom right steel ball forms a seal on the valve inlet 562, the water in the water storage tank 12 enters from the other valve inlet 562, and flows out from the valve outlet 563 into the sewage tank 32, when the sewage in the sewage tank 32 overflows the float 331, the sewage 70 will flow back to the water storage tank 12.

[0148] When the cleaning equipment works in the vertical state, the internal state of the three-way valve 56 is asFigure 20 As shown, when the sewage extraction mechanism 30 is opened, the four stainless steel balls inside the three-way valve 56 will slide down along the slope, and the rightmost bottom steel ball will form a seal against the valve inlet 562, and the pressure against the valve inlet 562 is F=2×(M1+M2)g. At this time, the sewage 70 in the water storage tank 12 enters the valve inlet 562 and flows out from the valve outlet 563 into the sewage tank 32. When the sewage 70 in the sewage tank 32 overflows the float 331, the sewage 70 will flow back into the water storage tank 12.

[0149] When the cleaning device is in a horizontal state for car washing, the internal state of the three-way valve 56 is as shown in Figure 21 As shown, when the sewage extraction mechanism 30 is opened, the four stainless steel balls inside the three-way valve 56 will slide down along the slope, and the rightmost bottom steel ball will form a seal against the valve inlet 562, and the pressure against the valve inlet 562 is F=2×(M1+M2)g. At this time, the sewage 70 in the water storage tank 12 enters the valve inlet 562 and flows out from the valve outlet 563 into the sewage tank 32. When the sewage 70 in the sewage tank 32 overflows the float 331, the sewage 70 will flow back into the water storage tank 12.

[0150] In another possible implementation, as shown in Figure 22 The moving part 564 includes a first moving part 5641 and a second moving part 5642, respectively used to block the passage between the two valve inlets 562 and the two water delivery pipes 531; the driving unit 565 is one, located between the first moving part 5641 and the second moving part 5642; the three-way valve 56 is connected with a swing rod 566, which is connected with the driving unit 565; under the swing action of the swing rod 566, the swing rod 566 can drive the driving unit 565 to move towards one of the moving parts 564 to block the corresponding valve inlet 562, and the other moving part 564 moves away from the other valve inlet 562.

[0151] This embodiment utilizes the swing rod 566 to drive the swing rod 566 to swing left and right under the action of gravity, and then drive the driving unit 565 connected to the lower part of the swing rod 566 to move in the opposite direction, so as to push the moving part 564 to move towards the arc surface of the valve inlet 562. Based on the tangential sealing principle of the arc conical surface, as the angle is switched during cleaning, the valve inlets 562 sealed by the moving parts 564 inside the valve body 561 are different, realizing the switching of extracting sewage from two places. The switching is fast, high, low in failure rate, low in cost, simple in material and high in working efficiency.

[0152] The three-way valve 56 of the embodiment is opened and closed by the free swing of the swing rod 566 in the valve body 561. The swing rod 566 is pressed by the driving unit 565 below the swing rod 566, and one of the two movable parts 564 seals the inner wall of the tapered pipe, thereby opening and closing the valve inlet 562. At this time, the driving unit 565 below the swing rod 566 blocks the valve inlet 562, and the other two channels are connected, so that the liquid flows through the two channels, thereby achieving the delivery of the liquid.

[0153] Further, the inner cavity wall of the valve body 561 is formed with a tapered portion 5612 for the movable part 564 to move towards the corresponding valve inlet 562. The tapered portion 5612 facilitates the displacement of the movable part 564 towards the corresponding valve inlet 562.

[0154] According to one embodiment of the present application, the cleaning device further comprises a sewage tank 32, and sewage 70 in the sewage tank 32 can be sucked into the sewage tank 32 through the suction power unit.

[0155] In one possible embodiment of the suction power unit, as shown in Figure 10 and Figure 23 , the suction power unit comprises sewage pumps 31 arranged on the upstream side of the sewage tank 32, and the cleaning device further comprises a motor driving the suction movement of the sewage pumps 31. The sewage pumps 31 are two, the first suction port 1241 and the second suction port 1242 are respectively connected to the two sewage pumps 31 through a suction channel 301, and the outlets of the two sewage pumps 31 are respectively connected to the sewage tank 32 through a sewage inlet pipe.

[0156] Specifically, the water inlet 311 of the sewage pump 31 is connected to the first suction port 1241 / second suction port 1242 through the suction channel 301, and the water outlet 312 of the sewage pump 31 is connected to the sewage tank 32. Of course, in other embodiments, the sewage pump 31 can also be one.

[0157] In the present embodiment, the sewage pump 31 directly sucks the sewage in the water storage tank 12 and discharges it into the sewage tank 32. In other embodiments, the sewage tank 32 can be omitted, and the sewage pump 31 directly discharges the sewage 70 at a designated position through the water outlet 312. For example, a hose is connected to the water outlet of the sewage pump 31, and the sewage 70 is discharged into a designated container placed on the ground through the hose, thereby avoiding the pollution of the environment caused by the random spilling of the sewage 70.

[0158] The sewage extraction mechanism 30 is required to be able to absorb the sewage 70 and allow the sewage 70 and fine sand particles to pass through without damaging the sewage pump 31 when extracting the sewage 70 in the water storage tank 12, while the flow direction of the sewage 70 is preferably one-way and cannot backflow, and a certain pressure should be provided during extraction and sufficient flow should be ensured to ensure extraction efficiency. In addition, service life is also an important technical consideration factor, and the service life of the sewage pump 31 is usually more than 80 hours. Therefore, in the embodiments of Figure 10 and Figure 23 , the sewage pump 31 includes a peristaltic pump, which can meet the above requirements, and then the cleaning equipment can still work normally when used in multi-angle working conditions, and the dual needs of multi-angle cleaning and rapid recovery of sewage 70 are considered. Of course, the sewage pump 31 can also include a diaphragm pump, and it should be emphasized that the diaphragm used here should meet or approach the above-mentioned multiple requirements for the sewage extraction mechanism 30. In addition, a filtering device can be added upstream of the diaphragm pump to avoid corrosion of the diaphragm pump by fine sand and other impurities after long-term use. Further, in the case of setting a filtering device, the diaphragm pump can be replaced by other types of water pumps, which are not limited here.

[0159] Since the first sewage suction port 1241 and the second sewage suction port 1242 are arranged at the two ends of the water storage tank 12, although the suction efficiency can be accelerated, the inventors have noticed that during use, due to the multi-angle working condition of the cleaning equipment, the following problems will occur: The first sewage suction port 1241 and the second sewage suction port 1242 at the two ends of the water storage tank 12 are arranged in the vertical direction, i.e. the first sewage suction port 1241 and the second sewage suction port 1242 have a height difference in the vertical direction, at this time the sewage 70 will flow to the lower suction port under the action of gravity, and Figure 10 in the embodiment shown in the figure, only one sewage pump 31 is used to extract the first sewage suction port 1241 and the second sewage suction port 1242, at this time the air suction of the suction port above the water storage tank 12 in the direction of gravity is easier than the sewage 70 suction of the water storage tank 12 below the water storage tank 12, and cannot form a pressure difference, resulting in difficulty in suction of the sewage 70 below the water storage tank 12 in the direction of gravity.

[0160] Therefore, in the embodiments of Figure 10In the illustrated embodiment, the cleaning equipment is further equipped with the aforementioned switching mechanism 50. When both ends of the cleaning head 10 of the cleaning equipment are in a generally horizontal state, the sewage pump 31 simultaneously draws sewage 70 from the first suction port 1241 and the second suction port 1242, which facilitates faster sewage 70 suction. When the first suction port 1241 and the second suction port 1242 at both ends of the water storage tank 12 are at different heights in the vertical direction, the sewage 70 will converge towards the lower suction port due to gravity. Thus, under the operation of the switching mechanism 50, the sewage pump 31 can quickly draw sewage 70 from the water storage tank 12.

[0161] And in Figure 23 In the embodiment shown with two sewage pumps 31, the cleaning equipment may be equipped with the aforementioned switching mechanism 50, or it may not be equipped with the aforementioned switching mechanism 50. The use and sewage recycling effect of the cleaning head 10 in different positions can be achieved simply by controlling the opening and closing of the sewage pump 31 connected to the corresponding sewage suction port. No limitation is made here.

[0162] In another feasible embodiment of the suction power unit, the suction power unit includes a negative pressure generating mechanism 35 disposed downstream of the sewage tank 32. The negative pressure generating mechanism includes an air pump, and the cleaning equipment includes a motor that drives the air pump to perform suction movements. The inlet of the air pump is connected to the sewage tank 32. That is, the sewage tank 32 is placed between the negative pressure generating mechanism 35 and the suction port. The negative pressure generating mechanism 35 is used to create a vacuum inside the sewage tank 32, so that sewage 70 is continuously drawn into the sewage tank 32 for storage. In this embodiment, sewage 70 does not enter the negative pressure generating mechanism 35.

[0163] In one embodiment, such as Figure 24 As shown, the suction ports 124 at both ends of the water storage tank 12 are connected to the sewage tank 32 via suction channels 301. The air inlet 351 of the negative pressure generating mechanism 35 is connected to the sewage tank 32, and the air outlet 352 of the negative pressure generating mechanism 35 is connected to the water storage tank 12. In this embodiment, the negative pressure generating mechanism 35 can be any device capable of creating a vacuum negative pressure inside the sewage tank 32. Specifically, the negative pressure generating mechanism 35 can be a diaphragm pump, peristaltic pump, plunger pump, or electromagnetic pump, and its quantity can be one or two. In this invention, a filter structure can be added between the sewage tank 32 and the air inlet 351 of the air pump to improve the service life of the air pump.

[0164] In another embodiment, such as Figure 25 As shown, the first suction port 1241 and the second suction port 1242 at both ends of the water storage tank 12 are connected to the sewage tank 32 through the suction channel 301, and the inlet of the negative pressure generating mechanism 35 is connected to the sewage tank 32. The negative pressure generating mechanism 35 is a blower.

[0165] According to one embodiment of the present application, the cleaning device has at least a first working position in which the distance between the hand-held end and the ground is greater than the distance between the working brush 11 and the ground, and a second working position in which the distance between the hand-held end and the ground is less than the distance between the working brush 11 and the ground; the sewage 70 delivered into the sewage tank 32 can exert pressure on the gas in the sewage tank 32, and the sewage tank 32 is provided with an exhaust structure 33 having an exhaust port 333 for delivering the gas in the sewage tank 32 outwards, and the exhaust port 333 is adjusted in position in response to the change of the working position of the cleaning device, so as to expose the exhaust port 333 above the sewage liquid level in the sewage tank 32.

[0166] In Figure 10 、 23 the embodiment shown in FIG. 25, the exhaust port 333 is arranged in the sewage tank 32, and the exhaust structure 33 includes a float 331 and a connecting pipe 334 connected to the float 331, the float 331 has a gas passage with one end forming the exhaust port 333 and being located above the liquid level in the sewage tank 32, and the other end of the gas passage discharges the gas outwards through the connecting pipe 334.

[0167] Specifically, the density of the float 331 is less than the density of the sewage 70, so that the float 331 can float on the sewage liquid level 70, and the gas in the sewage tank 32 enters and discharges the sewage tank 32 from the exhaust port 333.

[0168] Further, in order to avoid the sewage 70 collected in the sewage tank 32 from entering the exhaust port 333, the float 331 is provided with a counterweight 332 located at the end of the connecting pipe 334, and the gravity of the counterweight 332 is less than the buoyancy of the float 331 in the sewage 70.

[0169] Specifically, the counterweight 332 is arranged on the surface of the float 331 opposite to the exhaust port 333, and the gravity of the counterweight 332 is less than the buoyancy of the float 331 in the sewage 70. In this way, the exhaust port 333 can always face away from the sewage 70 when the cleaning device is in different use states. Preferably, the connecting pipe 334 has a certain flexibility, so that the float 331 can adjust the position of the exhaust port 333 without being restricted by the connecting pipe 334 when the cleaning device changes the angle.

[0170] As Figure 26 and Figure 27 shown, when the float 331 is provided with the counterweight 332, the opening of the exhaust port 333 can always face away from the sewage 70 when the cleaning device is in different working angles, so as to avoid the sewage 70 from entering the connecting pipe 334. As Figure 27 shown, the exhaust port 333 is arranged in the sewage tank 32, and the exhaust structure 33 includes a float 331 and a connecting pipe 334 connected to the float 331, the float 331 has a gas passage with one end forming the exhaust port 333 and being located above the liquid level in the sewage tank 32, and the other end of the gas passage discharges the gas outwards through the connecting pipe 334. Figure 26When the cleaning equipment is tilted, the connecting pipe 334 bends under the action of the counterweight 332, and the opening of the exhaust port 333 is set to face upwards in the vertical direction.

[0171] Preferably, the float 331 is a hollow structure with an inner cavity. The vent 333 communicates with the inner cavity of the hollow float 331 and is located on the same diameter as the counterweight 332, on opposite sides of the center of the float 331. One end of the connecting pipe 334 is inserted into the inner cavity of the hollow float 331. In this embodiment, the float 331 is not limited to a hollow structure; it is acceptable as long as the vent 333 and the connecting pipe 334 can communicate with each other. In this embodiment, the connecting pipe 334 can pass through the counterweight 332 and be inserted into the float 331. Of course, the connecting pipe 334 can also be inserted into the interior of the float 331 from other positions within the float 331; this is not a limitation.

[0172] The cleaning equipment of the present invention, in Figure 10 and Figure 23 In the illustrated embodiment, the gas inside the sewage tank 32 can be connected to the vent 125 of the water storage tank 12 via the return vent pipe 34, so that the internal space of the sewage tank 32 is connected to the water storage tank 12. In this way, the gas inside the sewage tank 32 can flow back into the water storage tank 12, preventing excessive pressure inside the sewage tank 32 from causing a large amount of sewage 70 to flow back into the water storage tank 12, and also preventing damage to the sewage tank 32 due to excessive pressure, while also preventing leakage of sewage 70 from the sewage tank 32. Furthermore, the return of gas from the sewage tank 32 to the water storage tank 12 increases the pressure within the water storage tank 12 to some extent, facilitating the rapid extraction of sewage 70 from the water storage tank 12.

[0173] exist Figure 24 In the embodiment shown, the connecting pipe 334 of the exhaust structure 33 is connected to the air inlet 351 of the negative pressure generating mechanism 35 through the pipeline. When the negative pressure generating mechanism 35 is working, it draws the gas inside the sewage tank 32 through the exhaust port 333. The exhaust structure 33 enables the negative pressure generating mechanism 35 to reliably draw the gas inside the sewage tank 32 and thus form a vacuum negative pressure, preventing sewage 70 from accidentally entering the negative pressure generating mechanism 35.

[0174] In addition, the inventors also consider that even if the float 331 is arranged to avoid the sewage 70 from entering the negative pressure generating mechanism 35, however, the gas in the sewage tank 32 will inevitably contain a small amount of water vapor, which will cause the gas discharged by the negative pressure generating mechanism 35 to contain a small amount of water, which may pollute the environment. Therefore, in the embodiment, the gas outlet 352 of the negative pressure generating mechanism 35 also communicates with the water storage tank 12 through the gas return pipe 34. Through the above-mentioned means, on the one hand, the excess water vapor is discharged into the water storage tank 12 to avoid polluting the environment; on the other hand, after the gas discharged by the negative pressure generating mechanism 35 enters the water storage tank 12, the pressure in the water storage tank 12 is increased to a certain extent, which is beneficial to the negative pressure generating mechanism 35 to quickly extract the sewage in the water storage tank 12.

[0175] Specifically, when the gas return pipe 34 is connected to the water storage tank 12, the gas return pipe 34 can be directly inserted into the inner cavity of the water storage tank 12 through the gas return port 125. Of course, in other embodiments, the gas return pipe 34 can also be connected to the gas return port 125 of the water storage tank 12 through an interface, which is not limited herein.

[0176] In Figure 28 In the embodiment shown, the exhaust port 333 is arranged on the sewage tank 32, and the sewage tank 32 can be rotated and arranged in response to the change of the different working positions of the cleaning device, so that the exhaust port 333 is located above the liquid level in the sewage tank 32 in different operating positions.

[0177] Specifically, the hand-held frame 20 is provided with an adaptive joint 16, and the sewage tank 32 is connected to the hand-held frame 20 through the adaptive joint 16, so that the sewage tank 32 always maintains parallel to the horizontal plane. In this way, in the "multi-dimensional" cleaning, the sewage tank 32 always maintains parallel to the horizontal plane, which is beneficial to maintaining the posture of the float 331 of the exhaust structure 33, thereby preventing the backflow and leakage of the sewage 70.

[0178] As can be seen from the above description, in the cleaning device of the embodiment, the heights of the two ends of the water storage tank 12 in the vertical direction are the same, which can ensure the rapid absorption of the sewage 70. Understandably, when the heights of the two ends of the water storage tank 12 in the vertical direction are different, the sewage will naturally flow to one end, which can also facilitate the rapid absorption of the sewage 70. When the heights of the two ends of the water storage tank 12 in the vertical direction change, it indicates that the working angle of the cleaning device changes. Therefore, the cleaning device of the embodiment can meet the dual requirements of multi-angle cleaning and rapid recovery of the sewage 70.

[0179] In the use process, there will also be a working condition that the heights of the two ends of the water storage tank 12 in the vertical direction are the same. In order to ensure that the sewage 70 can be quickly absorbed under this condition, the cleaning device of the embodiment can also be used in this working condition. Figure 29As shown, the bottom wall of the water storage tank 12 is higher in the middle and lower at both ends so that the sewage 70 can flow from the middle to the first suction port 1241 and the second suction port 1242 at both ends. More specifically, refer to Figure 30 and combined Figure 29 The water storage tank 12 includes a bottom wall 121 and side walls 122 connected to the bottom wall 121. The side walls 122 and the bottom wall 121 form the inner cavity of the water storage tank 12. In the axial direction of the working brush 11, the bottom wall 121 is higher in the middle and lower at both ends, so that the sewage 70 can flow from the middle to both ends. Because the bottom wall of the water storage tank 12 is higher in the middle and lower at both ends, when the two ends of the water storage tank 12 are at the same height in the vertical direction, the sewage 70 will flow to the suction ports 124 at both ends at the same time, thereby facilitating the suction of the sewage 70.

[0180] The bottom wall 121 of the water storage tank 12 is higher in the middle and lower at both ends, such as... Figure 29 As shown, the bottom wall 121 includes a first drainage surface 126 and a second drainage surface 127, which are inclined surfaces in the depth direction of the water storage tank 12. Figure 29 (The middle is in the vertical direction). The top 12a of the inclined surface is closer to the middle of the water storage tank 12 than the bottom 12b of the inclined surface. The two inclined surfaces are arranged in the length direction X of the working brush 11, and the top 12a of the two inclined surfaces are connected. Therefore, from the point where the first drainage surface 126 and the second drainage surface 127 connect, the sewage 70 is more likely to flow towards the end of the first drainage surface 126 away from the second drainage surface 127, and is also more likely to flow towards the end of the second drainage surface 127 away from the first drainage surface 126. (Refer to reference) Figure 23 and Figure 29 The first suction port 1241 and the second suction port 1242 are both located on the side wall 122 of the water storage tank 12, and the two suction ports 124 are respectively close to the end of the first drainage surface 126 away from the second drainage surface 127 and the end of the second drainage surface 127 away from the first drainage surface 126.

[0181] In other implementations, such as Figure 31 As shown and in conjunction with reference Figure 29 The first suction port 1241 and the second suction port 1242 can be respectively disposed on the first drainage surface 126 and the second drainage surface 127. Preferably, the two suction ports 124 are respectively disposed at the end near the first drainage surface 126 and away from the second drainage surface 127, and at the end near the second drainage surface 127 and away from the first drainage surface 126. In other words, in this embodiment, the first suction port 1241 and the second suction port 1242 are respectively disposed at the ends of the first drainage surface 126 and the second drainage surface 127 that are close to each other and away from each other.

[0182] It is emphasized that the middle part of the bottom wall 121 of the water storage tank 12 is higher and the two ends are lower, which is not limited to the above-mentioned embodiment, and any structure that facilitates the flow of sewage 70 from the middle part of the bottom wall 121 of the water storage tank 12 to the two sides can be used. For example, the above-mentioned inclined surface can also be a wavy surface, and a water guide groove is formed between adjacent wave crests.

[0183] As shown in Figure 32 The gas return port 125 of the water storage tank 12 is provided on the side wall 122 of the water storage tank 12, and in the axial direction of the working brush 11, the gas return port 125 is located between the first sewage suction port 1241 and the second sewage suction port 1242. That is, the gas return port 125 is provided on the side wall 122 of the water storage tank 12 at a middle position in the axial direction of the working brush 11, so that while a small amount of sewage 70 is sent into the water storage tank 12, the gas can accelerate the flow of sewage 70 to the first sewage suction port 1241 and the second sewage suction port 1242 at the two ends. It is emphasized that the gas return port 125 of the water storage tank 12 is provided on the side wall 122 of the water storage tank 12, which is also applicable to the case where the bottom wall 121 of the water storage tank 12 is a flat surface.

[0184] As shown in Figure 33 In use of the cleaning device of the present embodiment, water is sprayed onto the bristles 112 by the water supply system 60, the working brush 11 rotates counterclockwise, the sewage 70 on the bristles 112 is scraped into the water storage tank 12 by the water scraping strip 13, and then the sewage 70 flows to the two ends of the water storage tank 12 and is then sucked by the two sewage pumps 31 and sent to the sewage tank 32. The flow direction of the clean water sprayed by the water supply system 60 and the sewage 70 can be referred to the arrows shown in the figure. The air in the sewage tank 32 returns to the water storage tank 12 through the connecting pipe 334. In Figure 32 In the embodiment shown in Figure 32 In the embodiment shown in

[0185] As shown in Figure 33 On the basis of the cleaning device of the embodiment shown in Figure 10 The water supply system 60 is further provided on the hand-held frame 20. The water supply system 60 includes a cleaning liquid tank 61 and a cleaning liquid pump 62, wherein the cleaning liquid tank 61 is also provided on the hand-held frame 20, and the cleaning liquid pump 62 can be provided separately from the hand-held frame 20 or also provided on the hand-held frame 20. The cleaning liquid pump 62 is connected with a liquid suction pipe 63 and a spray pipe 64, wherein the liquid suction pipe 63 extends into the cleaning liquid tank 61; and the spray port 641 of the spray pipe 64 is located on one side of the bristles 112, as shown in Figure 32As shown. Thus, the cleaning equipment of this embodiment can complete the cleaning of the vehicle body surface under multi-angle conditions using only the liquid stored in the cleaning fluid tank 61, eliminating the need to transport large amounts of water, making it very convenient to use.

[0186] like Figure 34 In another embodiment of the cleaning device of the present invention, with Figure 24 The difference between the embodiments shown lies in the different configuration of the sewage extraction mechanism 30. The structure of the water storage tank 12 is similar, that is, the middle of the bottom wall of the water storage tank 12 is high and the two ends are low, so that the sewage 70 can flow to both ends, which is conducive to the extraction of sewage 70.

[0187] In this embodiment, the sewage extraction mechanism 30 includes two sewage tanks 32 and two negative pressure generating mechanisms 35. The two sewage tanks 32 are respectively connected to the two suction ports 124, and the two negative pressure generating mechanisms 35 are respectively connected to the internal space of the two sewage tanks 32. That is, each suction port 124 is equipped with a separate sewage tank 32 and a negative pressure generating mechanism 35, which can ensure efficient extraction of sewage 70 from the water storage tank 12.

[0188] The two wastewater tanks 32 can be formed by dividing the interior of a larger tank into two parts with a partition, or they can be two separate tanks; the specific method is not limited. The type of negative pressure generating mechanism 35 is not limited, including large diaphragm pumps, peristaltic pumps, plunger pumps, electromagnetic pumps, or blowers.

[0189] In addition, as in this embodiment, each sewage tank 32 can be equipped with the aforementioned exhaust structure 33, and the connection method between the exhaust structure 33 and the corresponding negative pressure generating mechanism 35 is the same as... Figure 24 The same applies to China, so I will not repeat it further.

[0190] In addition, the outlet 352 of each negative pressure generating mechanism 35 is connected to the same return air port 125 of the water storage tank 12 through the return air pipe 34. On the one hand, excess water vapor is discharged into the water storage tank 12 to avoid environmental pollution; on the other hand, the gas discharged by the negative pressure generating mechanism 35 enters the water storage tank 12, which increases the pressure in the water storage tank 12 to a certain extent, which is conducive to the negative pressure generating mechanism 35 extracting water from the water storage tank 12 as quickly as possible. Each negative pressure generating mechanism 35 can also be individually connected to a different return air port 125 of the water storage tank 12.

[0191] The application also provides a cleaning device, comprising a hand-held frame 20 and a cleaning head 10, wherein: the hand-held frame 20 extends along a longitudinal direction; the cleaning head 10 comprises a cleaning head shell, a working brush 11 rotatably connected to the cleaning head shell, a water storage tank 12 for collecting sewage 70, and a sewage suction port 124 for recycling the sewage 70 in the water storage tank 12, and a sewage removal unit arranged on the cleaning head shell and configured to act on the working brush to remove the sewage 70 on the working brush and guide the sewage 70 to the water storage tank 12; as shown in Figure 36 The sewage suction port 124 comprises a first sewage suction port 1241 arranged at one end of the length direction of the water storage tank 12, and the first sewage suction port 1241 is configured to open the inner cavity of the water storage tank 12 to the free end in the length direction.

[0192] In this embodiment, the sewage removal unit can be the water scraping strip 13 in the first embodiment.

[0193] In this embodiment, the first sewage suction port 1241 is configured to open the inner cavity of the water storage tank 12 to the free end in the length direction, which means that the sewage can flow out in a certain direction, but does not mean that there is no solid structure between the inner cavity of the water storage tank 12 and the outside in this direction. If the free end of the length direction of the water storage tank 12 does not form a continuous solid structure that completely covers this direction, and the sewage 70 cannot flow out in this direction, it is considered that the free end of the length direction of the inner cavity of the water storage tank 12 is open. The application adopts this structure, which eliminates the need to set up a sewage pumping mechanism. When the cleaning head 10 is operated at multiple angles, the sewage collected by the sewage removal unit into the water storage tank 12 can be discharged from the first sewage suction port 1241 and the second sewage suction port 1242, which simplifies the structure of the cleaning device and improves the convenience of use.

[0194] Further, the circumferential arc of the outwardly open part of the first sewage suction port 1241 and the second sewage suction port 1242 in the circumferential direction of the longitudinal direction Y is greater than or equal to 2 degrees, which is more conducive to the discharge of the sewage 70. Further, as shown in Figure 37 The water storage tank 12 is provided with a shielding plate that can cover part of the sewage suction port.

[0195] In order to accumulate a certain amount of water in the water storage tank 12 before discharging it, the application also comprises a plug that can block the first sewage suction port 1241 and the second sewage suction port 1242, and is used to block the first sewage suction port 1241 and the second sewage suction port 1242 when the user does not use the cleaning device.

[0196] In one embodiment of the application, the hand-held frame 20 can be connected to the cleaning head 10 through a hose 102, as shown in Figure 38As shown, the sewage extraction mechanism 30, the water supply system 60, and the corresponding connecting pipelines are arranged in the hand-held frame 20. In this embodiment, the operator can hold the hand-held frame 20 with one hand and hold the hose 102 with the other hand to realize multi-dimensional cleaning operation of the cleaning head 10. The sewage tank 32 of the sewage extraction mechanism 30 in the hand-held frame 20 will not be affected by the multi-dimensional operation and will not have the risk of sewage leakage, thereby improving the use flexibility of the cleaning equipment.

[0197] The cleaning equipment of the present embodiment has basically the same structure, working principle and beneficial effects as the cleaning equipment of the first embodiment, and will not be described here.

[0198] The above specific embodiments further illustrate the purposes, technical solutions and beneficial effects of the present application. It should be understood that the above description is only for specific embodiments of the present application and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A cleaning device, comprising: a hand support configured to be held by an operator; a cleaning head disposed on one side of the hand support, the cleaning head comprising a working brush, a water reservoir disposed on one side of the working brush, the water reservoir comprising a suction port configured to recover wastewater from the water reservoir; a wastewater extraction mechanism comprising a suction channel, a suction power unit, and a motor configured to drive the suction power unit to perform a suction motion, the suction channel being in communication with the water reservoir; a switching mechanism; wherein the suction port comprises a first suction port and a second suction port, the wastewater extraction mechanism is configured to recover wastewater received in the water reservoir through the first suction port and / or the second suction port, the first suction port is located at one end of a length direction of the water reservoir, the second suction port is located at the other end of the length direction of the water reservoir, the switching mechanism is configured to close a passage of the first suction port above the water reservoir in a gravitational direction and the suction power unit, and open a passage of the second suction port below the water reservoir in the gravitational direction and the suction power unit, so that the wastewater extraction mechanism is capable of extracting wastewater through the second suction port when the cleaning device is in a first use posture in which one end of the length direction of the water reservoir is higher than the other end of the length direction of the water reservoir in the gravitational direction.

2. The cleaning device according to claim 1, wherein: the first suction port and the second suction port are located at a position offset from a center line of the length of the water reservoir to both ends of the water reservoir by a preset distance, the preset distance is configured to be greater than or equal to 1 / 4 of the length of the water reservoir.

3. The cleaning device according to claim 1, wherein: the suction channel comprises a first inlet pipe and a second inlet pipe, the first inlet pipe and the second inlet pipe each comprise an inlet end extending into an inner cavity of the water reservoir to absorb wastewater, the first suction port and the second suction port are configured by the inlet ends of the first inlet pipe and the second inlet pipe.

4. The cleaning device according to claim 1, wherein: the water reservoir comprises an outer shell, the first suction port and the second suction port are configured as through holes penetrating at least part of the outer shell and in communication with the inner cavity of the water reservoir, the suction channel is connected to the through holes to suck out wastewater.

5. The cleaning device according to claim 1, wherein: the cleaning head has at least one of the following use postures: one of the first suction port and the second suction port is configured to pass wastewater generated by the working brush therethrough; wherein the use postures comprise: a first use posture in which one end of the length direction of the water reservoir is higher than the other end of the length direction of the water reservoir in the gravitational direction, and a second use posture in which the first suction port and the second suction port are at the same horizontal plane.

6. The cleaning device according to claim 1, wherein: ​ The switching mechanism comprises a movable member and a driving unit, the driving unit is capable of driving or controlling the movement of the movable member to close or open the passage of at least one of the first and second suction ports to the suction power unit.

7. The cleaning device according to claim 6, wherein, The movable member comprises a first movable member and a second movable member arranged in the water storage tank, the first movable member is configured to open or close the first suction port, and the second movable member is configured to open or close the second suction port. The driving unit comprises an elastic member and a gravity block connected to each movable member, the elastic member is configured to provide an elastic force to each movable member to have a tendency to open the suction port. In a state where the gravity of the gravity block is greater than the elastic force, the gravity block can drive one of the first movable member and the first movable member to move to open the corresponding suction port; in a state where the gravity of the gravity block is less than the elastic force, one of the first movable member and the first movable member closes the corresponding suction port under the action of the elastic force.

8. The cleaning device according to claim 1, wherein, The suction passage comprises a three-way pipeline, the three-way pipeline comprises a first water inlet pipe and a second water inlet pipe and at least one outlet pipe, the first water inlet pipe and the second water inlet pipe can communicate with the water storage tank.

9. The cleaning device according to claim 8, wherein, The switching mechanism comprises a movable member and a driving unit, the driving unit comprises an angle sensor and a control assembly, the angle sensor can detect the inclination angle of the cleaning device, and the control assembly can control the movement of the movable member according to the monitoring result of the angle sensor to close the passage of the first suction port located at one end of the elevated position of the water storage tank to the suction power unit and open the passage of the second suction port to the suction power unit.

10. The cleaning device according to claim 9, wherein, The movable member comprises two valves, and the two valves are installed in the first water inlet pipe and the second water inlet pipe one by one; wherein the control assembly can control any valve to block or open the corresponding first water inlet pipe or second water inlet pipe according to the detection result of the angle sensor.

11. The cleaning device according to claim 8, wherein, The switching mechanism is configured as a three-way valve, the three-way valve comprises two valve inlets connected to the first water inlet pipe and the second water inlet pipe respectively, and one valve outlet connected to the outlet pipe, the three-way valve has an inner cavity, and the two valve inlets and the valve outlet are respectively communicated with the inner cavity; the inner cavity is provided with a movable member, wherein the movable member is configured to move towards the valve inlet to close the passage of the first suction port located at one end of the elevated position of the water storage tank to the suction power unit and open the passage of the second suction port to the suction power unit.

12. The cleaning device according to claim 11, wherein, The movable member includes a first movable member and a second movable member, respectively used for blocking the passageway between the two valve inlets and the corresponding first water pipe and the corresponding second water pipe; At least one driving unit is arranged between the first movable member and the second movable member; Under the action of gravity, the driving unit drives the first movable member or the second movable member to move, in the state that one movable member blocks the corresponding valve inlet, the other movable member is separated from the corresponding other valve inlet, and the valve outlet is communicated with the other valve outlet.

13. The cleaning device according to claim 11, wherein The movable member includes a first movable member and a second movable member, respectively used for blocking the passageway between the two valve inlets and the corresponding first water pipe and the corresponding second water pipe; The driving unit is one, arranged between the first movable member and the second movable member; the three-way valve is connected with a swing rod, the swing rod is connected with the driving unit; under the swing action of the swing rod, the swing rod can drive the driving unit to move towards one movable member to block the corresponding valve inlet, and the other movable member is away from the corresponding other valve inlet.

14. The cleaning device according to any one of claims 11 to 13, wherein The inner cavity wall surface of the three-way valve is formed with a tapered portion for the movable member to move towards the corresponding valve inlet.

15. The cleaning device according to any one of claims 1 to 5, wherein The cleaning device further comprises: A sewage tank, sewage in the water storage tank can be sucked into the sewage tank through the suction power unit.

16. The cleaning device according to claim 15, wherein The suction power unit is configured as one, and the suction power unit comprises: A negative pressure generating mechanism arranged on the downstream side of the sewage tank, the negative pressure generating mechanism comprises an air pump, the inlet of the air pump is communicated with the sewage tank; or A sewage pump through which sewage can flow and be sucked into the sewage tank, the sewage pump is one, the inlet of the sewage pump can be communicated with one end of the two suction ports, and the outlet of the sewage pump is communicated with the sewage tank.

17. The cleaning device according to claim 15, wherein The suction power unit is configured as two, and the suction power unit comprises a sewage pump arranged on the upstream side of the sewage tank; The sewage pump is two, the first suction port and the second suction port are respectively communicated with the two sewage pumps through a suction channel, and the outlets of the two sewage pumps are respectively communicated with the sewage tank through a sewage inlet pipe.

18. The cleaning device according to claim 1, wherein The first suction port and the second suction port are both configured to open the inner cavity of the water storage tank to the free end in the length direction.

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