WO2023217083A1

WO2023217083A1 - Liquid storage structure and cleaning apparatus having same

Info

Publication number: WO2023217083A1
Application number: PCT/CN2023/092754
Authority: WO
Inventors: 刘新丽; 张亚林
Original assignee: 追觅创新科技(苏州)有限公司
Priority date: 2022-05-09
Filing date: 2023-05-08
Publication date: 2023-11-16
Also published as: CN218419701U

Abstract

A liquid storage structure and a cleaning apparatus having same. The liquid storage structure comprises: a liquid storage structure body (100), which is internally provided with an accommodating cavity (111) for accommodating a liquid medium, a first port (112) for allowing the liquid medium to enter the accommodating cavity (111) being provided in the liquid storage structure body (100), and the liquid storage structure body (100) having a first state in which the liquid storage structure body is located at an initial position, and a second state in which the liquid storage structure body inclines backwards relative to the initial position; and a pair of electrically conductive members (200) arranged in the accommodating cavity (111) and connected by means of the liquid medium in the accommodating cavity (111), at least one of the pair of electrically conductive members (200) being arranged at the top of the accommodating cavity (111). The electrically conductive member (200) located at the top of the accommodating cavity (111) comprises an electrically conductive body (210) and an electrically conductive sheet (220) connected to the bottom end of the electrically conductive body (210), wherein the electrically conductive sheet (220) is at least partially located at the rear side of the electrically conductive body (210), such that the maximum working capacity of the liquid storage structure body (100) in the second state is less than that in the first state.

Description

Liquid storage structure and cleaning equipment having the same

This disclosure claims the priority of the following patent application: a Chinese patent application submitted to the China Patent Office on May 9, 2022, with the application number 202221090025.1 and the invention title "Liquid storage structure and cleaning equipment having the same", which was filed on June 2022 A Chinese patent application with the application number 202221401148.2 and the invention title "Liquid storage structure and cleaning equipment having the same" was submitted to the China Patent Office on September 7. The entire content of the above patent application is incorporated by reference into this disclosure.

Technical field

The invention belongs to the technical field of cleaning equipment, and specifically relates to a liquid storage structure and cleaning equipment having the same.

Background technique

With the continuous development of automation technology and artificial intelligence technology, various cleaning equipment such as sweepers and floor washing machines are increasingly used. Cleaning equipment can independently complete the cleaning function of the surface to be cleaned, so it is widely favored by consumers.

When the existing cleaning equipment is in use, the sewage tank will tilt backwards along with the cleaning equipment. When the bottom end of the electrode sheet in the sewage tank contacts the sewage, at this time, the cleaning equipment detects the water full signal and cleans the tank. The device stops working. However, when the cleaning equipment stops working and is placed upright, the user can place the machine on the charging stand to perform self-cleaning work on the floor brush. However, at this time, the bottom end of the electrode sheet will still be in contact with sewage, and the cleaning equipment will still stop working. It is necessary to dump the sewage in the sewage tank before the cleaning equipment can work again and perform self-cleaning actions, which has the disadvantage of being inconvenient to use. . Therefore, it is necessary to improve the prior art to overcome the defects in the prior art.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to provide a liquid storage structure that is easy to use and has a good operating experience and a cleaning device having the same.

In order to solve the above technical problems, the present invention provides a liquid storage structure, which includes: a liquid storage structure body, which is provided with a receiving cavity for storing liquid medium; the liquid storage structure body is provided with a chamber for allowing liquid medium to enter the container; The first port of the cavity, the liquid storage structure body has a first state when it is in an initial position and a second state in which it is tilted backward relative to the initial position; a pair of conductive members are provided in the receiving cavity and pass through The liquid medium in the receiving cavity is connected, and at least one of the pair of conductive members is located at the top of the receiving cavity; wherein, the conductive member located at the top of the receiving cavity includes a conductive body, connected to the The conductive sheet at the bottom end of the conductive body is at least partially located on the rear side of the conductive body, so that the maximum working capacity of the liquid storage structure body in the second state is less than the maximum working capacity in the first state. Working capacity.

Preferably, in the above-mentioned liquid storage structure, the pair of conductive members are arranged on the top of the receiving cavity, and the conductive body extends from the top of the receiving cavity to the bottom of the receiving cavity; wherein, the At least part of the conductive sheet is arranged at an angle to the conductive body.

Preferably, in the above liquid storage structure, the bottom edge of the conductive body is set at the same height as the bottom edge of the conductive sheet; or, the bottom edge of the conductive sheet is set lower than the bottom edge of the conductive body.

Preferably, in the above-mentioned liquid storage structure, the length of the conductive body in its extension direction is greater than the length of the conductive piece in its extension direction, wherein the pair of conductive members is generally in an "L" shape.

Preferably, in the above-mentioned liquid storage structure, the conductive member is installed in the receiving cavity through a mounting bracket, the mounting frame is provided with a mounting slot, and the conductive member is buried in the mounting slot; wherein, the conductive body The bottom end and the conductive sheet are exposed from the installation groove to be in contact with the liquid medium.

Preferably, in the above-mentioned liquid storage structure, the liquid storage structure body includes a base shell and an upper cover assembly. The base shell is hollow inside and has an open top to form the receiving cavity. The upper cover assembly is removable. At the top opening of the base case; wherein, the pair of conductive members are provided on the upper cover assembly so as to form an integral body with the upper cover assembly and can follow the upper cover assembly to synchronize with the upper cover assembly. The base shell performs the action of fitting or disassembling.

Preferably, in the above liquid storage structure, the receiving cavity is provided with a liquid inlet pipe connected to the first port, and the liquid inlet pipe extends from the bottom of the receiving cavity to the top of the receiving cavity, Wherein, the liquid outlet of the liquid inlet pipe is higher than the bottom of the pair of conductive members.

Preferably, in the above-mentioned liquid storage structure, the liquid storage structure body is also provided with a second port connected to the receiving cavity for air outlet, and an air outlet is provided between the second port and the liquid outlet. Liquid separation structure; wherein the gas-liquid separation structure can extend the gas flow path between the second port and the liquid outlet.

Preferably, in the above-mentioned liquid storage structure, the gas-liquid separation structure includes a cover, the cover extends generally in the direction from the top to the bottom of the receiving cavity, and is formed around the cavity wall of the receiving cavity. The liquid inlet pipe extends into the separation chamber with its mouth facing downward.

The invention also provides a cleaning device, including the liquid storage structure as mentioned above.

The technical solution provided by the present invention has the following advantages:

The liquid storage structure of the present invention has different maximum working capacities in the tilted state and the vertical state, that is, there is a capacity between the maximum working capacity of the liquid storage structure in the vertical state and the maximum working capacity of the liquid storage structure in the tilted state. The existence of the above-mentioned capacity difference can effectively increase the dirt-holding capacity of the liquid storage structure, thereby avoiding frequent dumping of the sewage tank, and has the advantages of easy use and good operating experience.

Preferably, in the above-mentioned liquid storage structure, the conductive component is installed in the receiving cavity through mounting, the mounting bracket is provided with a mounting slot, and the conductive component is buried in the mounting slot; wherein, the conductive body The bottom end and the conductive sheet are exposed from the installation groove to be in contact with the liquid medium.

Preferably, in the above-mentioned liquid storage structure, the mounting frame is further provided with shielding ribs, the shielding ribs are arranged on the outer periphery of the mounting slot and at least partially surround the conductive sheet to reduce the resistance of the pair of conductive sheets. The probability of accidental conduction between components.

Preferably, in the above-mentioned liquid storage structure, the shielding ribs are semi-open and are used to shield the upper part and both sides of the conductive sheet and expose the lower part of the conductive sheet; wherein, the shielding ribs are far away from the conductive sheet. There is a drainage surface on one side of the piece.

The invention also provides a liquid storage structure, which is characterized in that it includes:

The liquid storage structure body is provided with a receiving chamber for storing liquid medium;

A pair of conductive parts, located in the receiving cavity, used to detect the amount of liquid in the receiving cavity;

A mounting bracket fixed on the liquid storage structure body is provided in the receiving cavity, and the conductive member includes a conductive piece located at the bottom of the mounting bracket;

The mounting bracket is also provided with a shielding rib for shielding the conductive sheet, and the shielding rib is at least partially located on the upper side of the conductive sheet.

Preferably, the shielding rib includes an upper shielding rib located on the upper side of the conductive sheet, and the length of the upper shielding rib is not less than the length of the conductive sheet.

Preferably, the shielding ribs include an upper shielding rib located on the upper side of the conductive sheet and two side shielding ribs located on the left and right sides of the conductive sheet. Both ends of the upper shielding rib are respectively connected to two side shielding ribs to form a "冂" type.

Preferably, the upper surface of the blocking rib is also provided with a drainage surface.

Preferably, the drainage surface is low on both sides and high in the middle.

Description of the drawings

Figure 1 is a schematic structural diagram of the liquid storage structure provided by the present invention;

Figure 2 is a schematic diagram of the exploded structure of Figure 1;

Figure 3 is a schematic diagram of the positional relationship between the upper cover assembly and the mounting bracket of the present invention;

Figure 4 is a schematic diagram of the exploded structure of Figure 3;

Figure 5 is a schematic cross-sectional structural diagram of Figure 3;

Figure 6 is an enlarged structural diagram of area A in Figure 5;

Figure 7 is another structural schematic diagram of the liquid storage structure provided by the present invention;

Figure 8 is an enlarged structural diagram of area B in Figure 7;

Figure 9 is a schematic cross-sectional structural diagram of Figure 1;

Figure 10 is a cross-sectional view of the liquid storage structure in the second state;

Figure 11 is an enlarged structural diagram of area B in Figure 10;

Figure 12 is a cross-sectional view of the liquid storage structure when it is in the first state;

Figure 13 is a schematic diagram of the movement trajectory of the detection end of the conductive member.

Implementation

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, not all, of the embodiments of the present invention. The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

In the present invention, unless otherwise specified, the directional words used such as "up, down, top, bottom" usually refer to the direction shown in the drawings, or refer to the vertical or vertical position of the component itself. Vertically or in the direction of gravity; similarly, for ease of understanding and description, "inside and outside" refers to the inside and outside relative to the outline of each component itself, but the above directional terms are not used to limit the present invention.

Referring to FIGS. 1 to 13 , the present invention provides a liquid storage structure. The liquid storage structure may be a liquid storage tank or a liquid storage box. In an illustrative scenario, the liquid storage structure is a sewage tank of a handheld floor scrubber. It is worth noting that the liquid storage structure in the above example is the sewage tank of a handheld floor scrubber, which is only a feasible application scenario. In other feasible scenarios that cannot be clearly excluded, the liquid storage structure may also be a clean water tank of a handheld floor scrubber.

The following description will mainly take the liquid storage structure as a sewage tank as an example. However, based on the above description, it can be seen that the protection scope of the embodiments of the present invention is not limited thereby.

In this embodiment, please refer to FIG. 1 , FIG. 2 and FIG. 11 . The sewage tank includes: a liquid storage structure body 100 and a pair of conductive members 200 provided in the liquid storage structure body 100 . The liquid storage structure body 100 is provided with a receiving cavity 111 inside for storing liquid medium, and the above-mentioned "liquid medium" is sewage. The liquid storage structure body 100 is provided with a first port 112 for allowing sewage to enter the receiving cavity 111. The first port 112 can be understood as an inlet for sewage. The pair of conductive members 200 are disposed in the receiving cavity 111 and are connected through the sewage in the receiving cavity 111 .

Specifically, the pair of conductive members 200 is made of conductive material, such as copper material, silver material, etc. A pair of conductive members 200 is used to limit the maximum working capacity of sewage in the liquid storage structure body 100 . The above-mentioned "maximum working capacity" refers to the sewage capacity in the liquid storage structure body 100 when the sewage passes through a pair of conductive members 200 . When the pair of conductive members 200 are respectively in contact with the sewage, the pair of conductive members 200 are electrically connected under the action of the sewage.

In this embodiment, a pair of conductive members 200 are connected to a detection circuit (not shown in the figure) through lines. When the pair of conductive members 200 are connected, the detection circuit transmits an electrical signal to the control unit on the handheld floor washing machine. To control the handheld floor scrubber to stop the suction action. For ease of explanation, the handheld floor scrubber will be referred to as a floor scrubber below.

Regarding the installation positions of the pair of conductive members 200 , in this embodiment, preferably, the pair of conductive members 200 are both located on the top of the receiving cavity 111 . The bottom of the conductive members 200 is the detection end. When the bottoms of the pair of conductive members 200 come into contact with sewage, the pair of conductive members 200 are connected. Of course, the pair of conductive members 200 can also be arranged one above the other.

Specifically, one of the pair of conductive members 200 is disposed at the top of the receiving cavity 111 , and the other is disposed at the bottom of the receiving cavity 111 . The following description mainly takes the case where a pair of conductive members 200 are both disposed on the top of the receiving cavity 111 as an example.

In this embodiment, the bottoms of the pair of conductive members 200 can be arranged at the same height or distributed at high and low levels. When a pair of conductive members 200 are distributed high and low, the maximum working capacity of the liquid storage structure body 100 is limited by the conductive member 200 at a high position. The reason is as follows: if the liquid level in the receiving cavity 111 only reaches the bottom of the conductive member 200 at the low level but does not reach the bottom of the conductive member 200 at the high level, since the bottom of the conductive member 200 at the high level is not in contact with the sewage, a pair of conductive members will 200 is not turned on, the floor washing machine can work normally; only when the liquid level in the receiving chamber 111 reaches the bottom of the high-level conductive piece 200, the pair of conductive pieces 200 can be turned on. In this embodiment, preferably, as shown in FIGS. 2 to 5 , the bottoms of a pair of conductive members 200 are distributed at equal heights.

Further, as shown in FIGS. 10 and 12 , the liquid storage structure body 100 has a first state when it is in an initial position and a second state in which it is tilted backward relative to the initial position. In this embodiment, the "rear" in the above-mentioned "tilt backward relative to the initial position" means: during the operation of the floor washing machine, the direction in which the body of the floor washing machine rotates toward the user side is rear, and the direction opposite to the rear is The direction is forward.

The above-mentioned "initial position" refers to the position of the sewage tank when the floor washing machine is in the standby state. At this time, the sewage tank is roughly vertical to the ground. It should be noted that in this specification, "approximately" or "basically" can be understood as being close to, approximating, or differing from the target value within a predetermined range. In this embodiment, when the liquid storage structure body 100 is in the initial position, there is a small inclination angle between the liquid storage structure body 100 and the vertical direction, where the above-mentioned "vertical direction" refers to: perpendicular to the ground. direction. That is to say, when the liquid storage structure body 100 is in the initial position, the sewage tank tilts forward. The forward tilt angle of the sewage tank ranges from 0° to 10°. Of course, it may also be that when the liquid storage structure body 100 is in the initial position, the liquid storage structure body 100 is located in the vertical direction. In this embodiment, the above-mentioned "first state" can be understood as a vertical state, and the above-mentioned "second state" can be understood as a horizontal state.

In this embodiment, please refer to FIG. 4 . The conductive member 200 includes a conductive body 210 and a conductive sheet 220 connected to the bottom end of the conductive body 210 . The conductive body 210 extends from the top of the receiving cavity 111 to the bottom of the receiving cavity 111 . extend. The conductive sheet 220 is at least partially located on the rear side of the conductive body 210, so that the maximum working capacity of the liquid storage structure body 100 in the second state (inclined state) is smaller than the maximum working capacity in the first state (vertical state).

Please refer to FIG. 12 . In the first state (vertical state), the bottom edge of the conductive member 200 is the detection terminal P. Please refer to FIG. 11 . In the second state (inclined state), the bottom end of the conductive sheet 220 on the side away from the conductive body 210 is the detection end M of the conductive sheet 220 . The detection terminal M is a part of the detection terminal P. The detection terminal P and the detection terminal M can be regarded as a collection of several detection points.

When the liquid storage structure body 100 rotates from the first state to the second state, or from the second state to the first state, the motion trajectories of the detection end P and the detection end M are arcs. Please refer to Figure 13. The above-mentioned arc is centered on the rotating shaft 510 where the body of the floor washing machine rotates relative to the floor brush 500. The distance between the rotating shaft 510 and the detection end (detection end P or detection end M) is Arc of radius R.

The conductive sheet in the prior art is usually a sheet extending in the up and down direction. Point N in Figures 10 and 11 is the position of the detection point on the conductive sheet when the sewage tank is tilted in the prior art. Compared with the prior art, in the present invention, when the sewage tank tilts, the detection end M on the conductive member 200 has a movement state of moving backward and upward.

Specifically, when the user rotates the body of the floor washing machine backward so that the liquid storage structure body 100 changes from the first state to the second state, at this time, the liquid storage structure body 100 tilts backward synchronously with the body to accommodate The pair of conductive members 200 in the cavity 111 are also tilted backward. Since the conductive sheet 220 is at least partially located on the rear side of the conductive body 210, the liquid level in the receiving cavity 111 first contacts the detection end M of the conductive sheet 220 during the rising process. When the detection end M of the conductive sheet 220 is in contact with sewage, the sewage capacity in the receiving cavity 111 is the maximum working capacity of the liquid storage structure body 100 in the second state.

Then, when the user rotates the body of the floor washing machine forward so that the liquid storage structure body 100 changes from the second state to the first state, since the conductive sheet 220 is at least partially located on the rear side of the conductive body 210, the liquid storage structure When the body 100 rotates forward, the bottom positions of the pair of conductive members 200 rise. At this time, there is a height difference between the bottoms of the pair of conductive members 200 and the liquid level. The bottoms of the pair of conductive members 200 are not in contact with the liquid level. surface contact, that is, the bottoms of the conductive body 210 and the conductive sheet 220 are not in contact with the liquid level surface. In this embodiment, only when the liquid level in the receiving cavity 111 rises to the bottom of the pair of conductive members 200, the pair of conductive members 200 will be triggered. When the pair of conductive members 200 are triggered, the sewage capacity in the receiving cavity 111 is the maximum working capacity of the liquid storage structure body 100 in the first state.

It can be seen from the above that there is a capacity difference between the maximum working capacity of the liquid storage structure body 100 in the first state and the maximum working capacity of the liquid storage structure body 100 in the second state. In this embodiment, the value range of the above-mentioned capacity difference is 30-300ml. The value of the capacity difference can be 30ml, 50ml, 100ml, 150ml, 200ml, 250ml, 300ml, etc., or it can be 5ml between 30-300ml. is the growth of interval units.

In the prior art, the maximum working capacity of the sewage tank in the first state is roughly consistent with the maximum working capacity in the first state. Compared with the existing technology, the present invention effectively increases the dirt-holding capacity of the sewage tank, thereby avoiding frequent dumping of the sewage tank, and has the advantages of convenient use and good operating experience.

In order to ensure the capacity difference between the liquid storage structure body 100 in the first state and the second state, the bottom edge of the conductive body 210 is flush with the bottom edge of the conductive sheet 220; or, the bottom edge of the conductive sheet 220 is lower than the conductive body 210 bottom edge setting.

Specifically, when the user pushes the floor washing machine forward when the liquid storage structure body 100 is in the second state, if the sewage in the liquid storage structure body 100 reaches the maximum working capacity in the second state, at this time, the floor washing machine The machine stops working. At this time, the user can rotate the body of the floor washing machine forward so that the liquid storage structure body 100 is in the first state, that is, the liquid storage structure body 100 changes from an inclined state to a vertical state. In the first state, due to the existence of the above-mentioned capacity difference, the floor washing machine can still work normally for a certain period of time. At this time, the floor washing machine can perform self-cleaning operations. The above-mentioned capacity difference can accommodate the amount of water required for the self-cleaning operation. It can be seen from the above that the liquid storage structure can enable the floor washing machine to have a more flexible operation mode.

Regarding the structure of the conductive member 200 , in this embodiment, at least part of the conductive sheet 220 is arranged at an angle to the conductive body 210 . The angle between the conductive sheet 220 and the conductive body 210 may be an obtuse angle or a right angle. Preferably, the pair of conductive members 200 is generally "L" shaped.

In this embodiment, the length of the conductive body 210 in its extension direction is greater than the length of the conductive sheet 220 in its extension direction. The above-mentioned "length of the conductive body 210 in its extension direction" refers to: the length of the conductive body 210 in the up-down direction; the above-mentioned "length of the conductive sheet 220 in its extension direction" refers to: the length of the conductive sheet 220 perpendicular to The length in the up and down direction.

In this embodiment, please refer to FIG. 3 . The liquid storage structure body 100 is also provided with a second port 121 connected with the receiving cavity 111 for air outlet. The second port 121 is provided on the liquid storage structure body 100 . The first port 112 is provided at the bottom of the liquid storage structure body 100 .

Considering that the length of the conductive body 210 defines the distance between the liquid level in the receiving cavity 111 and the second port 121 when the liquid storage structure body 100 is at the maximum working capacity. If the length of the conductive body 210 is smaller than the length of the conductive sheet 220 , then the distance between the liquid level in the receiving cavity 111 and the second port 121 is small. When the liquid storage structure body 100 shakes, the liquid level in the receiving cavity 111 will Water vapor can easily enter the fan of the floor scrubber through the second port 121, thus affecting the normal operation of the fan. Therefore, the length of the conductive body 210 needs to be set longer than the length of the conductive sheet 220 .

In addition, if the length of the conductive sheet 220 is set to be greater than the length of the conductive body 210, then in the second state, the detection end M of the conductive sheet 220 is too low, thus affecting the maximum working capacity in the second state. Therefore, in this embodiment, the length of the conductive body 210 needs to be greater than the length of the conductive sheet 220 .

In order to avoid false triggering, in this embodiment, the conductive member 200 is installed in the receiving cavity 111 through the mounting bracket 300 . Specifically, please refer to FIGS. 3 to 6 . The mounting bracket 300 is provided with a mounting slot, and the conductive member 200 is embedded in the mounting slot. The bottom end of the conductive body 210 and the conductive piece 220 are exposed in the installation groove to be in contact with the liquid medium. It can be seen from the above that by providing the mounting bracket, the exposed area of the conductive member 200 can be effectively reduced, thereby reducing the occurrence of false triggering.

In this embodiment, please refer to FIG. 11 . The liquid storage structure body 100 includes a base shell 110 and an upper cover assembly 120 . The base shell 110 is hollow inside and has an open top to form a receiving cavity 111 . The upper cover assembly 120 can The disassembly is provided at the top opening of the base case 110 . In order to improve the sealing performance between the upper cover assembly 120 and the top opening of the base case 110, a sealing ring 130 is further provided at the top opening of the base case 110.

Furthermore, a pair of conductive members 200 is disposed on the upper cover assembly 120 so as to form an integral body with the upper cover assembly 120 and can be coupled or disassembled synchronously with the base case 110 following the upper cover assembly 120 . Therefore, the liquid storage structure body 100 adopts the above-mentioned structural form, which on the one hand facilitates cleaning of the base case 110 and on the other hand facilitates wiring of the conductive member 200 .

In this embodiment, the receiving cavity 111 is provided with a liquid inlet pipe 113 connected with the first port 112 . The liquid inlet pipe 113 extends from the bottom of the receiving cavity 111 to the top of the receiving cavity. When the liquid storage structure body 100 is removed from the floor washing machine, due to the above-mentioned liquid inlet pipe 113, the sewage in the receiving cavity 111 will not leak from the first port 112. Furthermore, the liquid outlet 1131 of the liquid inlet pipe 113 is higher than the bottom of the pair of conductive members 200, thus ensuring that the liquid storage structure body 100 has a better ability to accommodate dirt.

In order to prevent the water vapor in the liquid storage structure body 100 from entering the fan of the floor washing machine through the second port 121 along with the air flow. In this embodiment, please refer to FIGS. 2 to 4 . A gas-liquid separation structure 400 is provided between the second port 121 and the liquid outlet 1131 . The gas-liquid separation structure 400 can extend the distance between the second port 121 and the outlet 1131 . The gas flow path between the liquid ports 1131 can separate the water vapor contained in the air flow as much as possible to reduce the impact of water vapor on the fan.

Specifically, the gas-liquid separation structure 400 includes a cover 410 that extends generally along the direction from the top to the bottom of the receiving cavity 111 and surrounds the cavity wall of the receiving cavity 111 to form a separation cavity 114 with the mouth facing downward. The liquid inlet pipe 113 extends into the separation chamber 114 , that is to say, the liquid outlet 1131 is located in the separation chamber 114 . Therefore, the small water droplets splashed into the receiving chamber 111 through the liquid outlet 1131 will not be directly sucked into the fan, and the airflow mixed with water vapor flows from top to bottom along the wall of the separation chamber 114. The water vapor inside condenses into water droplets on the wall of the separation chamber 114 and falls along the wall of the separation chamber 114 into the receiving chamber 111, thereby achieving gas-liquid separation. The gas flow flows out from the bottom opening of the separation chamber 114 and flows out from the second port 121, thereby realizing secondary gas-liquid separation, which has the advantage of good gas-liquid separation effect.

The invention also provides a cleaning device for cleaning the surface to be cleaned. In an illustrative scenario, the cleaning equipment is a handheld floor scrubber. It is worth noting that the cleaning equipment described in the above example is a handheld floor scrubber, which is only a feasible application scenario. In other feasible scenarios that cannot be explicitly excluded, the cleaning equipment may also be other cleaning equipment.

The following description will mainly take the cleaning equipment as a hand-held floor scrubber as an example. However, based on the above description, it can be seen that the protection scope of the embodiments of the present invention is not limited thereby.

The floor washing machine includes a body (not shown in the figure) and a liquid storage structure detachably provided on the body, wherein the liquid storage structure is the liquid storage structure described in Embodiment 1.

In this embodiment, please refer to FIG. 1 , FIG. 2 and FIG. 7 . The sewage tank includes: a liquid storage structure body 100 and a pair of conductive members 200 provided in the liquid storage structure body 100 . The liquid storage structure body 100 is provided with a receiving cavity 111 inside for storing liquid medium, and the above-mentioned "liquid medium" is sewage. The liquid storage structure body 100 is provided with a first port 112 for allowing sewage to enter the receiving cavity 111. The first port 112 can be understood as an inlet for sewage. The pair of conductive members 200 are disposed in the receiving cavity 111 and are connected through the sewage in the receiving cavity 111 .

Further, please refer to FIGS. 8 and 10 . The liquid storage structure body 100 has a first state when it is in an initial position and a second state in which it is tilted backward relative to the initial position. In this embodiment, the "rear" in the above-mentioned "tilt backward relative to the initial position" means: during the operation of the floor washing machine, the direction in which the body of the floor washing machine rotates toward the user side is rear, and the direction opposite to the rear is The direction is forward.

Please refer to FIG. 10 . In the first state (vertical state), the bottom edge of the conductive member 200 is the detection terminal P. Please refer to FIG. 9 . In the second state (inclined state), the bottom end of the conductive sheet 220 on the side away from the conductive body 210 is the detection end M of the conductive sheet 220 . The detection terminal M is a part of the detection terminal P. The detection terminal P and the detection terminal M can be regarded as a collection of several detection points.

When the liquid storage structure body 100 rotates from the first state to the second state, or from the second state to the first state, the motion trajectories of the detection end P and the detection end M are arcs. Please refer to Figure 11. The above-mentioned arc is centered on the rotating shaft 510 where the body of the floor washing machine rotates relative to the floor brush 500. The distance between the rotating shaft 510 and the detection end (detection end P or detection end M) is Arc of radius R.

The conductive sheet in the prior art is usually a sheet extending in the up and down direction. Point N in Figures 8 and 9 is the position of the detection point on the conductive sheet when the sewage tank is tilted in the prior art. Compared with the prior art, in the present invention, when the sewage tank tilts, the detection end M on the conductive member 200 has a movement state of moving backward and upward.

Considering that the length of the conductive body 210 defines the distance between the liquid level in the receiving cavity 111 and the second port 121 when the liquid storage structure body 100 is at the maximum working capacity. If the length of the conductive body 210 is smaller than the length of the conductive sheet 220 , then the distance between the liquid level in the receiving cavity 111 and the second port 121 is small. When the liquid storage structure body 100 shakes, the liquid level in the receiving cavity 111 will Water vapor can easily enter the fan of the floor scrubber through the second port 121, thereby affecting the normal operation of the fan. Therefore, the length of the conductive body 210 needs to be set longer than the length of the conductive sheet 220 .

In order to avoid false triggering, in this embodiment, the conductive member 200 is installed in the receiving cavity 111 through the mounting bracket 300 . Specifically, please refer to FIGS. 3 to 6 . The mounting bracket 300 is provided with a mounting slot, and the conductive member 200 is embedded in the mounting slot. The bottom end of the conductive body 210 and the conductive piece 220 are exposed in the installation groove to be in contact with the liquid medium. It can be seen from the above that by providing the mounting bracket 300, the exposed area of the conductive member 200 can be effectively reduced, thereby reducing the occurrence of false triggering.

It is considered that during the cleaning process, when the user absorbs dirt with high salt content and high viscosity, it will inevitably adhere to the mounting bracket 300 . Under the action of gravity, the dirt will flow and contact the conductive member 200 . Since the greater the salt content, the higher the conductivity, which may cause the two conductive members 200 to accidentally form a connection through the residual dirt on the mounting bracket, resulting in false alarms. Based on this, please refer to FIGS. 7 and 8 . In another embodiment of the present application, the mounting bracket 300 is provided with shielding ribs, and the shielding ribs are arranged on the outer periphery of the mounting groove and are arranged around the conductive sheet 220 .

Since the shielding ribs in this application are arranged around the conductive sheet 220, the conductive sheet 220 can be accommodated in the space formed by the shielding ribs 311, thus blocking the flow channel between the dirt and the conductive sheet 220, which can effectively This avoids the possibility of accidental conduction between the two conductive members 200 due to dirt on the mounting bracket, resulting in a false alarm. In this application, the shielding ribs are used to shield the conductive sheet, which means that when the liquid storage structure is in the first state and the second state, under the action of gravity, most of the dirt can be blocked by the shielding ribs and will not flow directly to the conductive sheet. Chip.

In this embodiment, the shielding ribs are arranged in a semi-open configuration similar to a "冂" shape, and are used to shield the top and both sides of the conductive sheet 220, and expose the bottom of the conductive sheet 220, so that the bottom of the conductive sheet 220 can contact the liquid in time. medium to prevent the setting of blocking ribs from affecting the responsiveness of the conductive sheet 220 when detecting liquid level. The shielding ribs include an upper shielding rib 312 located on the upper side of the conductive sheet 220 and two side shielding ribs 311 located on the left and right sides of the conductive sheet 220. Both ends of the upper shielding rib 312 are respectively connected to the two side shielding ribs 311 to form a "冂" shape. . The side of the upper shielding rib 312 away from the conductive sheet 220 , that is, the upper surface, is also provided with a drainage surface. The drainage surface is set to be low on both sides and high in the middle. In this way, when the dirt or liquid medium attached to the mounting bracket 300 flows to the upper shielding rib 312, it can directly enter the receiving cavity 111 through the drainage surface relatively smoothly, thereby reducing the residence time of the dirt on the surface of the shielding rib 311. .

Of course, the form of the blocking ribs may not be limited to the "冂" shape, but may also be simply a "一" shape, which is arranged above the conductive sheet to block the conductive sheet and prevent the remaining dirt on the mounting bracket from being between the conductive sheet 220 of connectivity. The length of the shielding rib can be shorter than the length of the conductive sheet 220, so as to shield the conductive sheet above the conductive sheet. Preferably, the length of the shielding rib is not less than the length of the conductive sheet 220, and can be above the conductive sheet 220. , completely covering the conductive sheet. It is understandable that those skilled in the art can make adjustments according to actual conditions, which will not be described in detail here.

Please refer to FIG. 7 . The liquid storage structure body 100 includes a base shell 110 and an upper cover assembly 120 . The base shell 110 is hollow inside and has an open top to form a receiving cavity 111 . The upper cover assembly 120 is detachably mounted on the base shell 110 the top opening. In order to improve the sealing performance between the upper cover assembly 120 and the top opening of the base case 110, a sealing ring 130 is further provided at the top opening of the base case 110.

Specifically, the gas-liquid separation structure 400 includes a cover 410 that extends generally from the top to the bottom of the receiving chamber 111 and surrounds the chamber wall of the receiving chamber 111 to form a separation chamber 114 with the mouth facing downward. The liquid inlet pipe 113 extends into the separation chamber 114 , that is to say, the liquid outlet 1131 is located in the separation chamber 114 . Therefore, the small water droplets splashed into the receiving chamber 111 through the liquid outlet 1131 will not be directly sucked into the fan, and the airflow mixed with water vapor flows from top to bottom along the wall of the separation chamber 114. The water vapor inside condenses into water droplets on the wall of the separation chamber 114 and falls along the wall of the separation chamber 114 into the receiving chamber 111, thereby achieving gas-liquid separation. The gas flow flows out from the bottom opening of the separation chamber 114 and flows out from the second port 121, thereby realizing secondary gas-liquid separation and having the advantage of good gas-liquid separation effect.

Obviously, the above-described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art can make other changes or modifications in different forms without making creative efforts, and all of them shall fall within the scope of protection of the present invention.

Claims

A liquid storage structure, characterized by including:

The liquid storage structure body is provided with a receiving cavity for storing liquid medium inside. The liquid storage structure body is provided with a first port for allowing liquid medium to enter the receiving cavity. The liquid storage structure body has a function when it is in the initial position. a first state and a second state of tilting backward relative to the initial position;

A pair of conductive members is provided in the receiving cavity and communicates through the liquid medium in the receiving cavity. At least one of the pair of conductive members is provided on the top of the receiving cavity;

Wherein, the conductive member located at the top of the receiving cavity includes a conductive body and a conductive sheet connected to the bottom end of the conductive body. The conductive sheet is at least partially located on the rear side of the conductive body so that the storage The maximum working capacity of the liquid structure body in the second state is smaller than the maximum working capacity in the first state.
The liquid storage structure according to claim 1, characterized in that:

The pair of conductive members are both located on the top of the receiving cavity, and the conductive body extends from the top of the receiving cavity to the bottom of the receiving cavity;

Wherein, at least part of the conductive sheet is arranged at an angle to the conductive body.
The liquid storage structure according to claim 1, characterized in that:

The bottom edge of the conductive body and the bottom edge of the conductive sheet are arranged at the same height; or,

The bottom edge of the conductive sheet is lower than the bottom edge of the conductive body.
The liquid storage structure according to any one of claims 1 to 3, characterized in that:

The length of the conductive body in its extension direction is greater than the length of the conductive piece in its extension direction, wherein the pair of conductive pieces is generally in an "L" shape.
The liquid storage structure according to claim 2, characterized in that:

The conductive component is installed in the receiving cavity through installation, the mounting bracket is provided with a mounting slot, and the conductive component is embedded in the mounting slot;

Wherein, the bottom end of the conductive body and the conductive sheet are exposed in the installation groove to be in contact with the liquid medium.
The liquid storage structure according to claim 1, characterized in that:

The liquid storage structure body includes a base shell and an upper cover assembly. The base shell is hollow inside and has a top opening to form the receiving cavity. The upper cover assembly is detachably installed at the top opening of the base shell. ;

Wherein, the pair of conductive members are disposed on the upper cover assembly so as to form an integral body with the upper cover assembly and can synchronously cooperate or disassemble with the base case following the upper cover assembly.
The liquid storage structure according to claim 1, characterized in that:

The receiving cavity is provided with a liquid inlet pipe connected to the first port. The liquid inlet pipe extends from the bottom of the receiving cavity to the top of the receiving cavity, wherein the outlet of the liquid inlet pipe The liquid port is higher than the bottom of the pair of conductive members.
The liquid storage structure according to claim 7, characterized in that:

The liquid storage structure body is also provided with a second port connected to the receiving cavity for air outlet, and a gas-liquid separation structure is provided between the second port and the liquid outlet;

Wherein, the gas-liquid separation structure can extend the gas flow path between the second port and the liquid outlet.
The liquid storage structure according to claim 8, characterized in that:

The gas-liquid separation structure includes a cover, which extends generally from the top to the bottom of the receiving cavity, and is surrounded by the cavity wall of the receiving cavity to form a separation cavity with the mouth facing downward. The liquid inlet pipe extends into the separation chamber.
A cleaning equipment, characterized by comprising the liquid storage structure according to any one of claims 1 to 9.
A liquid storage structure, characterized by including:

The liquid storage structure body is provided with a receiving cavity for storing liquid medium inside. The liquid storage structure body is provided with a first port for allowing liquid medium to enter the receiving cavity. The liquid storage structure body has a function when it is in the initial position. a first state and a second state of tilting backward relative to the initial position;

A pair of conductive members, located in the receiving cavity, used to detect the amount of liquid in the receiving cavity to prevent it from exceeding the maximum working capacity. At least one of the pair of conductive members is located at the top of the receiving cavity. ;

Wherein, the conductive member located at the top of the receiving cavity includes a conductive body and a conductive sheet connected to the bottom end of the conductive body. The conductive sheet is at least partially located on the rear side of the conductive body so that the storage The maximum working capacity of the liquid structure body in the second state is smaller than the maximum working capacity in the first state.
The liquid storage structure according to claim 11, characterized in that,

The pair of conductive members are both located on the top of the receiving cavity, and the conductive body extends from the top of the receiving cavity to the bottom of the receiving cavity;

Wherein, at least part of the conductive sheet is arranged at an angle to the conductive body.
The liquid storage structure according to claim 11, characterized in that,

The bottom edge of the conductive body and the bottom edge of the conductive sheet are arranged at the same height; or,

The bottom edge of the conductive sheet is lower than the bottom edge of the conductive body.
The liquid storage structure according to any one of claims 11 to 13, characterized in that,

The length of the conductive body in its extension direction is greater than the length of the conductive piece in its extension direction, wherein the pair of conductive pieces is generally in an "L" shape.
The liquid storage structure according to claim 12, characterized in that,

The conductive component is installed in the receiving cavity through installation, the mounting bracket is provided with a mounting slot, and the conductive component is embedded in the mounting slot;

Wherein, the bottom end of the conductive body and the conductive sheet are exposed in the installation groove to be in contact with the liquid medium.
The liquid storage structure according to claim 15, characterized in that,

The mounting bracket is also provided with shielding ribs. The shielding ribs are arranged on the outer periphery of the mounting groove and at least partially surround the conductive piece to reduce the probability of accidental conduction between the pair of conductive parts.
The liquid storage structure according to claim 16, characterized in that,

The blocking ribs are semi-open and are used to block the top and both sides of the conductive sheet and expose the bottom of the conductive sheet;

Wherein, a drainage surface is provided on a side of the shielding rib away from the conductive sheet.
The liquid storage structure according to claim 11, characterized in that,

The liquid storage structure body includes a base shell and an upper cover assembly. The base shell is hollow inside and has a top opening to form the receiving cavity. The upper cover assembly is detachably installed at the top opening of the base shell. ;

Wherein, the pair of conductive members are disposed on the upper cover assembly so as to form an integral body with the upper cover assembly and can synchronously cooperate or disassemble with the base case following the upper cover assembly.
The liquid storage structure according to claim 11, characterized in that,

The receiving cavity is provided with a liquid inlet pipe connected to the first port. The liquid inlet pipe extends from the bottom of the receiving cavity to the top of the receiving cavity, wherein the outlet of the liquid inlet pipe The liquid port is higher than the bottom of the pair of conductive members.
The liquid storage structure as claimed in claim 19, characterized in that,

The liquid storage structure body is also provided with a second port connected to the receiving cavity for air outlet, and a gas-liquid separation structure is provided between the second port and the liquid outlet;

Wherein, the gas-liquid separation structure can extend the gas flow path between the second port and the liquid outlet.
The liquid storage structure according to claim 20, characterized in that,

The gas-liquid separation structure includes a cover, which extends generally from the top to the bottom of the receiving cavity, and is surrounded by the cavity wall of the receiving cavity to form a separation cavity with the mouth facing downward. The liquid inlet pipe extends into the separation chamber.
A cleaning equipment, characterized by comprising a liquid storage structure as claimed in any one of claims 11 to 21.
A liquid storage structure, characterized by including:

The liquid storage structure body is provided with a receiving chamber for storing liquid medium;

A pair of conductive parts, located in the receiving cavity, used to detect the amount of liquid in the receiving cavity;

A mounting bracket fixed on the liquid storage structure body is provided in the receiving cavity, and the conductive member includes a conductive piece located at the bottom of the mounting bracket;

The mounting bracket is also provided with a shielding rib for shielding the conductive sheet, and the shielding rib is at least partially located on the upper side of the conductive sheet.
The liquid storage structure according to claim 23, wherein the shielding rib includes an upper shielding rib located on the upper side of the conductive sheet, and the length of the upper shielding rib is not less than the length of the conductive sheet.
The liquid storage structure according to claim 24, wherein the shielding ribs include an upper shielding rib located on the upper side of the conductive sheet, and two side shielding ribs located on the left and right sides of the conductive sheet, and the upper shielding ribs The two ends are connected to the two side blocking ribs respectively, forming a "冂" shape.
The liquid storage structure according to claim 23, wherein the upper surface of the blocking rib is also provided with a drainage surface.
The liquid storage structure of claim 26, wherein the drainage surface is low on both sides and high in the middle.