Reversing device, drainage system and cleaning equipment

Abstract

The utility model discloses a reversing device, a liquid discharging system and cleaning equipment, relates to the technical field of cleaning equipment, and mainly aims to improve the structural simplicity and the use reliability of a base station cleaning tank sewage discharging structure. According to the main technical scheme, the reversing device comprises a shell, wherein a liquid channel and a first gas channel are formed in the shell; the switching assembly is provided with a second gas channel; the switching assembly is used for switching one first gas channel to be communicated with different second gas channels and controlling opening and closing of the liquid channel.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a reversing device, a liquid discharge system and cleaning equipment. Background Art

[0002] Among the current intelligent cleaning robots, there is a robot that can automatically mop the floor. This robot generally has the function of cleaning the mop, and when the mop is cleaned, it is usually necessary to drain the liquid in the base station cleaning tank.

[0003] In the related art, a vacuum pump is usually used to generate negative pressure in a liquid storage tank, so that the sewage in the cleaning tank of the base station is sucked into the liquid storage tank, and then the sewage in the liquid storage tank is discharged through a sewage pump; or, a vacuum pump is used in conjunction with an air path reversing device to generate negative pressure in the liquid storage tank to suck the sewage in the cleaning tank into the liquid storage tank, and then the air path is converted to generate positive pressure in the liquid storage tank to discharge the sewage in the liquid storage tank.

[0004] The above methods all use more parts, have more complicated structures and lower reliability. Utility Model Content

[0005] In view of this, the embodiments of the present utility model provide a reversing device, a drainage system and a cleaning device, the main purpose of which is to improve the structural simplicity and reliability of the sewage discharge structure of the base station cleaning tank.

[0006] In a first aspect, an embodiment of the utility model provides a reversing device, comprising:

[0007] A shell, wherein the shell is provided with a liquid channel and a first gas channel;

[0008] A switching component, the switching component includes a second gas channel; the switching component is used to switch one of the first gas channels to communicate with different second gas channels, and to control the opening and closing of the liquid channel.

[0009] Furthermore, the switching assembly includes a movable part, and the movable part can be movably arranged on the housing.

[0010] Further, the at least two first gas channels include a first gas channel and a second gas channel; the at least two second gas channels are arranged on the movable part, and include a third gas channel and a fourth gas channel.

[0011] Furthermore, the movable member is used to rotate relative to the housing between a first position and a second position.

[0012] Further, in the first position, the first airway is communicated with the third airway, and the second airway is communicated with the fourth airway; in the second position, the first airway is communicated with the fourth airway, and the second airway is communicated with the third airway.

[0013] Furthermore, the liquid channel includes at least a first liquid channel and a second liquid channel; in the first position, the first liquid channel is open and the second liquid channel is closed; in the second position, the first liquid channel is closed and the second liquid channel is open.

[0014] Further, the first liquid channel and the second liquid channel are arranged on two sides of the shell opposite to each other.

[0015] Further, when the movable member rotates from the first position to the second position or when the movable member rotates from the second position to the first position, the rotation angle of the movable member is 180°.

[0016] Further, a first sealing member is provided on the housing at a position located at the first air passage, and a second sealing member is provided on the housing at a position located at the second air passage;

[0017] and / or,

[0018] A third sealing member is provided on the movable member at a position located at the third air passage, and a fourth sealing member is provided on the movable member at a position located at the fourth air passage.

[0019] Furthermore, the switching assembly also includes a movable first valve core, which is connected to the movable part and moves with the rotation of the movable part. The first valve core has a first open position to open the first liquid channel and a first closed position to close the first liquid channel.

[0020] Furthermore, the switching assembly also includes a movable second valve core, which is connected to the movable part and moves with the rotation of the movable part. The second valve core has a second open position to open the second liquid channel and a second closed position to close the second liquid channel.

[0021] Further, in the first position, the first valve core is in the first open position, and the second valve core is in the second closed position; in the second position, the first valve core is in the first closed position, and the second valve core is in the second open position.

[0022] Further, the movable part includes a movable body and a fixed part arranged on the movable body, the first valve core and the second valve core are respectively rotatably connected to the fixed part, and the movable part drives the first valve core to move between the first open position and the first closed position, and the second valve core to move between the second open position and the second closed position through the fixed part.

[0023] Furthermore, the first valve core and the second valve core include at least an elastic part; the elastic parts of the first valve core and the second valve core can be deformed during the rotation of the movable part, and restore the deformation when the movable part reaches the first position or the second position.

[0024] Further, at least a first inlet and a first outlet are provided on one side of the housing, and the first inlet and the first outlet are connected to form the first liquid channel;

[0025] When the first valve core is in the first open position, the first inlet is connected to the first outlet, and the first liquid channel is opened; when the first valve core is in the first closed position, the first valve core blocks the first inlet, and the first liquid channel is closed.

[0026] Furthermore, the switching assembly further includes a first elastic member, which is disposed in the housing and connected to the first valve core, and is used to provide a force for the first valve core toward the first inlet.

[0027] Furthermore, the switching assembly also includes a fifth sealing member, which is disposed in the housing and is used to seal the first liquid channel.

[0028] Furthermore, the fifth sealing member includes a retractable first sealing sleeve, which is arranged in the shell and sleeved on the outside of the first valve core. One end of the first sealing sleeve is connected to the first valve core, and the other end of the first sealing sleeve is connected to the shell. The first sealing sleeve can be retracted and retracted with the movement of the first valve core.

[0029] Furthermore, at least a second inlet and a second outlet are provided on the other side of the housing, and the second inlet and the second outlet are connected to form the second liquid channel;

[0030] When the second valve core is in the second open position, the second inlet is connected to the second outlet, and the second liquid passage is opened. When the second valve core is in the second closed position, the second valve core blocks the second inlet, and the second liquid passage is closed.

[0031] Furthermore, the switching assembly also includes a second elastic member, which is disposed in the housing and connected to the second valve core, and is used to provide a force for the second valve core toward the second inlet.

[0032] Furthermore, the switching assembly also includes a sixth sealing member, which is disposed in the housing and is used to seal the second liquid channel.

[0033] Furthermore, the sixth sealing member includes a retractable second sealing sleeve, which is arranged in the shell and sleeved on the outside of the second valve core, one end of the second sealing sleeve is connected to the second valve core, and the other end of the second sealing sleeve is connected to the shell, and the second sealing sleeve can be retracted and retracted with the movement of the second valve core.

[0034] Furthermore, the first sealing sleeve or the second sealing sleeve is a bellows structure.

[0035] Furthermore, at least one detection member is provided on the housing and is used to detect the position of the movable member.

[0036] Further, the detection member includes a first detection member and a second detection member;

[0037] The movable part includes a fixed part. When the movable part is in the first position, the first detection part is triggered corresponding to the fixed part and sends a corresponding control signal; when the movable part is in the second position, the second detection part is triggered corresponding to the fixed part and sends a corresponding control signal.

[0038] Furthermore, the reversing device further comprises:

[0039] A driving assembly is drivingly connected to the movable member and is used to drive the movable member to move relative to the housing.

[0040] Furthermore, the driving assembly includes a driving member and a transmission mechanism, and the driving member is used to drive the movable member to move relative to the housing through the transmission mechanism.

[0041] Further, the movable parts include gears, pulleys, cams, and sprockets;

[0042] The transmission mechanism includes a worm, a gear transmission mechanism, a belt transmission mechanism or a chain transmission mechanism.

[0043] In a second aspect, the embodiment of the utility model further provides a liquid discharge system, comprising:

[0044] Gas drive unit, liquid storage tank and the aforementioned reversing device;

[0045] The reversing device generates negative pressure through the gas driving part to suck the liquid into the liquid storage tank, and generates positive pressure through the gas driving part to discharge the liquid from the liquid storage tank.

[0046] Further, at least one of the first gas channels is in communication with the liquid storage tank, and at least another one of the first gas channels is in communication with the atmosphere;

[0047] The gas driving part comprises a gas suction port and an exhaust port; at least one of the second gas channels is connected to the gas suction port, and at least another one of the second gas channels is connected to the exhaust port;

[0048] The liquid inlet of the liquid storage box is connected to the cleaning part through at least one of the liquid channels, and the liquid outlet of the liquid storage box discharges the liquid through at least another one of the liquid channels.

[0049] In a third aspect, an embodiment of the utility model further provides a cleaning device, comprising the aforementioned reversing device.

[0050] By means of the above technical solution, the utility model has at least the following beneficial effects:

[0051] In the technical solution provided by the embodiment of the utility model, the switching component can switch a first gas channel to be connected with different second gas channels, and control the opening and closing of the liquid channel. Specifically, when in use, at least one first gas channel can be connected to the liquid storage tank, and at least another first gas channel can be connected to the atmosphere. At least one second gas channel can be connected to the air suction port of the vacuum pump, and at least another second gas channel can be connected to the exhaust port of the vacuum pump. The base station cleaning tank can be connected to the liquid inlet of the liquid storage tank through at least one liquid channel, and the liquid discharge port of the liquid storage tank can be connected to the floor drain through at least another liquid channel. Through the switching action of the switching component, the first gas channel connected to the liquid storage tank can be connected to the second gas channel connected to the air suction port of the vacuum pump. The first gas channel connected to the atmosphere can be connected to the second gas channel connected to the exhaust port of the vacuum pump. The liquid channel connecting the liquid storage tank and the cleaning tank can be opened. The liquid channel connecting the liquid storage tank and the floor drain can be closed. Thus, the liquid storage tank can be connected to the vacuum pump's exhaust port, and the vacuum pump's exhaust port is connected to the atmosphere. When the vacuum pump is started, a negative pressure can be formed in the liquid storage tank, and the liquid in the cleaning tank is sucked into the liquid storage tank; accordingly, through the switching action of the switching component, the first gas channel connected to the liquid storage tank can be connected to the second gas channel connected to the vacuum pump's exhaust port. The first gas channel connected to the atmosphere can be connected to the second gas channel connected to the vacuum pump's exhaust port. The liquid channel connecting the liquid storage tank and the cleaning tank can be closed. The liquid channel connecting the liquid storage tank and the floor drain can be opened. Thus, the liquid storage tank can be connected to the vacuum pump's exhaust port, and the vacuum pump's exhaust port is connected to the atmosphere. When the vacuum pump is started, a positive pressure can be formed in the liquid storage tank, and the liquid in the liquid storage tank is discharged to the floor drain. Compared with the prior art, the reversing device provided by the embodiment of the utility model can realize the simultaneous switching of the gas circuit and the liquid circuit, the integration of the components is high, the structure is simple, and the reliability of use is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The following drawings of the present invention are used as a part of the embodiments of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principle of the present invention.

[0053] In the attached figure:

[0054] Figure 1 A schematic structural diagram of a reversing device provided by an embodiment of the utility model at a first viewing angle;

[0055] Figure 2 A schematic structural diagram of a reversing device provided by an embodiment of the utility model at a second viewing angle;

[0056] Figure 3 A schematic structural diagram of a reversing device provided by an embodiment of the utility model at a third viewing angle;

[0057] Figure 4 A schematic diagram of a structure of a reversing device provided by an embodiment of the utility model with a bracket installed;

[0058] Figure 5 for Figure 4 AA section view;

[0059] Figure 6 A schematic diagram of the structure of the first liquid channel, the second liquid channel and the movable part in a reversing device provided by an embodiment of the utility model;

[0060] Figure 7 A schematic diagram of a structure in which a detection member in a reversing device provided by an embodiment of the utility model is installed on a bracket;

[0061] Figure 8 A schematic diagram of the structure of a driving assembly and a movable part of a reversing device provided in an embodiment of the utility model;

[0062] Fig. 9 A schematic structural diagram of a movable part in a reversing device provided by an embodiment of the utility model at a first viewing angle;

[0063] Fig.10 A schematic structural diagram of a movable part in a reversing device provided by an embodiment of the utility model at a second viewing angle;

[0064] Fig.11 A schematic structural diagram of a liquid discharge system provided in an embodiment of the utility model.

[0065] Description of reference numerals:

[0066] 1-shell; 11-first air channel; 12-second air channel; 2-movable part; 21-third air channel; 22-fourth air channel; 23-movable body; 24-fixed part; 25-engaging teeth; 3-first liquid channel; 31-first valve core; 32-first valve body; 321-first inlet; 322-first outlet; 33-first elastic part; 34-fifth sealing member; 4-second liquid channel; 41-second valve core; 42-second valve body; 421-second inlet; 422-second outlet; 43-second elastic part; 44-sixth sealing member; 5-bracket; 51-first detection member; 52-second detection member; 6-driving assembly; 61-driving member; 62-worm; 63-second gear; 7-gas driving part; 8-liquid storage tank; 9-cleaning tank; 10-reversing device. DETAILED DESCRIPTION

[0067] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0068] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0069] Now, exemplary embodiments according to the present utility model will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present utility model thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art.

[0070] like Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a reversing device, including a housing 1, on which a liquid channel and a first gas channel may be provided; a switching component, on which a second gas channel may be provided, and the switching component is used to switch a first gas channel to be connected with different second gas channels, and to control the opening and closing of the liquid channel. The number of first gas channels and the number of second gas channels may be at least two respectively, and the switching component may be used to switch the same first gas channel to be connected with different second gas channels, or the switching component may be used to switch the same second gas channel to be connected with different first gas channels.

[0071] The switching device provided in the embodiment of the utility model can switch a first gas channel to communicate with different second gas channels, and control the opening and closing of the liquid channel. That is, the switching component can simultaneously switch the communication channel between the housing 1 and the switching component, and the opening or closing of the liquid channel.

[0072] Specifically, when in use, at least one first gas channel can be connected to the liquid storage tank, and at least another first gas channel can be connected to the atmosphere. At least one second gas channel can be connected to the air suction port of the vacuum pump, and at least another second gas channel can be connected to the exhaust port of the vacuum pump. The cleaning tank of the base station can be connected to the liquid inlet of the liquid storage tank through at least one liquid channel, and the liquid discharge port of the liquid storage tank can be connected to the floor drain through at least another liquid channel. Through the switching action of the switching component, the first gas channel connected to the liquid storage tank can be connected to the second gas channel connected to the air suction port of the vacuum pump. The first gas channel connected to the atmosphere can be connected to the second gas channel connected to the exhaust port of the vacuum pump. The liquid channel connecting the liquid storage tank and the cleaning tank can be opened. The liquid channel connecting the liquid storage tank and the floor drain can be closed. In this way, the liquid storage tank can be connected to the air suction port of the vacuum pump, and the exhaust port of the vacuum pump is connected to the atmosphere. When the vacuum pump is started, a negative pressure can be formed in the liquid storage tank, and the liquid in the cleaning tank is sucked into the liquid storage tank; accordingly, through the switching action of the switching component, the first gas channel connected to the liquid storage tank can be connected to the second gas channel connected to the exhaust port of the vacuum pump. The first gas channel connected to the atmosphere can be connected to the second gas channel connected to the vacuum pump exhaust port. The liquid channel connecting the liquid storage tank and the cleaning tank can be closed. The liquid channel connecting the liquid storage tank and the floor drain can be opened. In this way, the liquid storage tank can be connected to the exhaust port of the vacuum pump, and the exhaust port of the vacuum pump is connected to the atmosphere. When the vacuum pump is started, a positive pressure can be formed in the liquid storage tank, and the liquid in the liquid storage tank is discharged to the floor drain. Compared with the prior art, the reversing device provided by the embodiment of the utility model can realize the simultaneous switching of the gas circuit and the liquid circuit, the integration of components is high, the structure is simple, and the reliability of use is improved.

[0073] In some embodiments, the switching assembly may include a movable member 2, which may be movably disposed on the housing 1. The at least two first gas channels may include a first gas channel 11 and a second gas channel 12; the at least two second gas channels are disposed on the movable member 2 and include a third gas channel 21 and a fourth gas channel 22; the movable member 2 may rotate relative to the housing 1 between a first position and a second position.

[0074] In the first position, the first air channel 11 is connected to the third air channel 21 , and the second air channel 12 is connected to the fourth air channel 22 ; in the second position, the first air channel 11 is connected to the fourth air channel 22 , and the second air channel 12 is connected to the third air channel 21 .

[0075] The liquid channel may include at least a first liquid channel 3 and a second liquid channel 4; in the first position, the first liquid channel 3 is open and the second liquid channel 4 is closed; in the second position, the first liquid channel 3 is closed and the second liquid channel 4 is open.

[0076] Specifically, the first air channel 11 can be connected to the liquid storage tank, the second air channel 12 can be connected to the atmosphere, and the second air channel 12 can be connected to a pipeline and emptied in the base station. The third air channel 21 is connected to the air suction port of the vacuum pump, and the fourth air channel 22 is connected to the exhaust port of the vacuum pump. The base station cleaning tank is connected to the liquid inlet of the liquid storage tank through the first liquid channel 3, and the liquid discharge port of the liquid storage tank is connected to the floor drain through the second liquid channel 4. When the movable part 2 is controlled to rotate to the first position, the first air channel 11 is connected to the third air channel 21, the second air channel 12 is connected to the fourth air channel 22, the first liquid channel 3 is opened, the second liquid channel 4 is closed, and the liquid storage tank is connected to the air suction port of the vacuum pump. Since the exhaust port of the vacuum pump is connected to the atmosphere, when the vacuum pump is started, a negative pressure can be formed in the liquid storage tank, and the liquid in the cleaning tank is sucked into the liquid storage tank; when the movable part 2 is controlled to rotate to the second position, the first air channel 11 is connected to the fourth air channel 22, the second air channel 12 is connected to the third air channel 21, the first liquid channel 3 is closed, and the second liquid channel 4 is opened, and the liquid storage tank can be connected to the exhaust port of the vacuum pump. Since the exhaust port of the vacuum pump is connected to the atmosphere, when the vacuum pump is started, a positive pressure can be formed in the liquid storage tank, and the liquid in the liquid storage tank is discharged to the floor drain. Compared with the prior art, the reversing device provided by the embodiment of the utility model can realize the simultaneous switching of the gas circuit and the liquid circuit, the integration of the components is high, the structure is simple, and the reliability of use is improved.

[0077] It can be understood that the movable member 2 can be rotatably disposed on the housing 1, and the movable member 2 is used to rotate relative to the housing 1 to switch between the first position and the second position. By rotating the movable member 2, the positions of the third air passage 21 and the fourth air passage 22 are changed to realize the switching of the communication channel between the housing 1 and the movable member 2, which not only saves the movable space of the movable member 2, but also facilitates the miniaturization of the reversing device, and is easy to operate and reliable to use.

[0078] In some embodiments, when the movable member 2 rotates from the first position to the second position, or when the movable member 2 rotates from the second position to the first position, the rotation angle of the movable member 2 is 180°. Specifically, the movable member 2 may be in the shape of a disk. Moreover, the line connecting the third air passage 21 and the fourth air passage 22 may pass through the rotation center of the movable member 2.

[0079] Specifically, when in use, the initial state can be: the movable part 2 can be in the first position, the first air channel 11 is connected to the third air channel 21, and the second air channel 12 is connected to the fourth air channel 22, that is, the liquid storage tank is connected to the vacuum pump's air outlet, the vacuum pump's exhaust port is connected to the atmosphere, the first liquid channel 3 is opened, and the second liquid channel 4 is closed. When the liquid in the liquid storage tank needs to be discharged, the movable part 2 can be controlled to rotate 180 degrees relative to the shell 1, so that the movable part 2 is in the second position, the first air channel 11 is connected to the fourth air channel 22, and the second air channel 12 is connected to the third air channel 21. That is, the liquid storage tank is connected to the vacuum pump's exhaust port, the vacuum pump's exhaust port is connected to the atmosphere, the first liquid channel 3 is closed, and the second liquid channel 4 is opened. When the vacuum pump is started, a positive pressure can be formed in the liquid storage tank, and the liquid in the liquid storage tank is discharged to the floor drain. If you want to switch to the liquid extraction state, you can control the movable part 2 to rotate 180 degrees relative to the shell 1, so that the liquid in the cleaning tank can be sucked into the liquid storage tank.

[0080] In some embodiments, a first seal is provided on the shell 1 at the position of the first air duct 11, and the first seal is used to seal and connect the first air duct 11 and the third air duct 21, or the first air duct 11 and the fourth air duct 22; a second seal is provided on the shell 1 at the position of the second air duct 12, and the second seal is used to seal and connect the second air duct 12 and the third air duct 21, or the second air duct 12 and the fourth air duct 22.

[0081] According to the above embodiment, the first air channel 11 and the third air channel 21, or the first air channel 11 and the fourth air channel 22 are sealed and connected through the first seal; the second air channel 12 and the third air channel 21, or the second air channel 12 and the fourth air channel 22 are sealed and connected through the second seal, which can ensure the sealing of the air path, ensure the formation of positive pressure or negative pressure in the liquid storage tank, and thus ensure the smooth extraction or discharge of liquid from the liquid storage tank. Specifically, the first seal and the second seal can both be sealing rings.

[0082] Alternatively, in other embodiments, a third sealing member is provided on the movable part 2 at the position of the third air duct 21, and the third sealing member is used to seal and connect the first air duct 11 and the third air duct 21, or the second air duct 12 and the third air duct 21; a fourth sealing member is provided on the movable part 2 at the position of the fourth air duct 22, and the fourth sealing member is used to seal and connect the first air duct 11 and the fourth air duct 22, or the second air duct 12 and the fourth air duct 22.

[0083] According to the above embodiment, the first air channel 11 and the third air channel 21, or the second air channel 12 and the third air channel 21 are sealed and connected through the third sealing member; the first air channel 11 and the fourth air channel 22, or the second air channel 12 and the fourth air channel 22 are sealed and connected through the fourth sealing member, which can ensure the sealing of the air path, ensure the formation of positive pressure or negative pressure in the liquid storage tank, and thus ensure the smooth extraction or discharge of liquid from the liquid storage tank. Specifically, the third sealing member and the fourth sealing member can both be sealing rings.

[0084] Of course, the above two embodiments can also be combined to ensure the sealing of the gas path, thereby ensuring the formation of positive or negative pressure in the liquid storage tank, and further ensuring the smooth extraction or discharge of liquid from the liquid storage tank. The specific implementation can be selected according to actual needs, and this application does not limit it.

[0085] There are many ways for the first liquid channel 3 or the second liquid channel 4 to be opened or closed as the movable part 2 rotates.

[0086] In order to ensure the reliability of use, in the embodiment of the utility model, see Figure 3 , Figure 4 and Figure 5 The switching assembly may further include a movable first valve core 31, which is connected to the movable member 2 and moves with the rotation of the movable member 2. The first valve core 31 has a first open position to open the first liquid channel 3 and a first closed position to close the first liquid channel 3. When the movable member 2 is in the first position, the first valve core is in the first open position; when the movable member is in the second position, the first valve core is in the first closed position.

[0087] The switching assembly may further include a movable second valve core 41, which is connected to the movable member 2 and moves with the rotation of the movable member 2. The second valve core 41 has a second open position for opening the second liquid channel 4 and a second closed position for closing the second liquid channel 4. When the movable member 2 is in the first position, the second valve core 41 is in the second closed position; when the movable member 2 is in the second position, the second valve core 41 is in the second open position.

[0088] In the above embodiment, the first valve core 31 or the second valve core 41 is connected to the movable part 2. During the rotation of the movable part 2 relative to the housing 1, the first valve core 31 moves between the first open position and the first closed position, and the second valve core 41 moves between the second open position and the second closed position. The initial state can be: the movable part 2 is in the first position, the first valve core 31 is in the first open position to open the first liquid channel 3; the second valve core 41 is in the second closed position to close the second liquid channel 4. When the liquid in the liquid storage tank needs to be discharged, the movable part 2 rotates 180° relative to the housing 1. At this time, the first valve core 31 is pushed to the first closed position by the movable part 2 to close the first liquid channel 3; at the same time, the second valve core 41 is pulled to the second open position by the movable part 2 to open the second liquid channel 4, and the liquid in the liquid storage tank can be discharged to the floor drain. That is, the movable part 2 rotates 180° relative to the housing 1, and the working states of the first liquid channel 3 and the second liquid channel 4 can be switched at the same time, which is simple to operate and reliable to use.

[0089] In some embodiments, see Figure 5 and Figure 6 The movable part 2 may include a movable body 23 and a fixed part 24 arranged on the movable body 23, and the third air channel 21 and the fourth air channel 22 are arranged on the movable body 23; the first valve core 31 and the second valve core 41 are respectively rotatably connected to the fixed part 24, and the movable part 2 drives the first valve core 31 to move between the first open position and the first closed position, and the second valve core 41 to move between the second open position and the second closed position through the fixed part 24.

[0090] The third air channel 21 and the fourth air channel 22 can be opened on the first side of the movable body 23; the fixing member 24 can be set on the second side of the movable body 23, and the fixing member 24 can be a convex column protruding from the second side; the first side and the second side are opposite to each other. The end of the first valve core 31 can be provided with a first sleeve ring, and the first valve core 31 is sleeved on the fixing member 24 through the first sleeve ring; the end of the second valve core 41 can be provided with a second sleeve ring, and the second valve core 41 is sleeved on the fixing member 24 through the second sleeve ring, so that the first valve core 31 and the second valve core 41 are rotatably connected to the fixing member 24.

[0091] In order to facilitate the first valve core 31 and the second valve core 41 to switch between the corresponding open position and the closed position along with the movement of the movable member 2, in some embodiments, the first liquid channel 3 and the second liquid channel 4 can be arranged on two sides of the housing 1 opposite to each other.

[0092] In some embodiments, the first valve core 31 and the second valve core 41 may include at least an elastic portion. For example, the portions of the first valve core 31 and the second valve core 41 close to the fixed member 24 may be elastic portions. The elastic portions of the first valve core 31 and the second valve core 41 may be deformed during the movement of the movable member 2, and may restore the deformation when the movable member 2 reaches the first position or the second position.

[0093] In the above embodiment, during the rotation of the movable member 2, the elastic parts of the first valve core 31 and the second valve core 41 can be deformed under the drive of the movable member 2. After the movable member 2 is rotated to the right position, the elastic parts of the first valve core 31 and the second valve core 41 can restore the deformation and make them stay in the corresponding open position or closed position respectively, so that the movable member 2 drives the first valve core 31 and the second valve core 41 to switch between the corresponding open position and the closed position respectively.

[0094] Specifically, at least the elastic parts of the first valve core 31 and the second valve core 41 can be a rod-shaped structure made of plastic material. Moreover, the thickness thereof is set to be relatively thin, so that the two can be deformed during the rotation of the movable part 2, and restore the deformation when the movable part 2 reaches the first position or the second position, which is convenient for operation.

[0095] In some embodiments, a first through hole for the first valve core 31 to pass through may be provided on one side of the housing 1; and a second through hole for the second valve core 41 to pass through may be provided on the other side of the housing 1. In order to ensure the stable movement of the first valve core 31 and the second valve core 41, the outer shape of the portion of the first valve core 31 that moves in the first through hole may be matched with the shape of the first through hole, so that the first through hole provides a guide for the movement of the first valve core 31 between the first open position and the first closed position; and the outer shape of the portion of the second valve core 41 that moves in the second through hole may be matched with the shape of the second through hole, so that the second through hole provides a guide for the movement of the second valve core 41 between the second open position and the second closed position. Moreover, in order to prevent the first valve core 31 and the second valve core 41 from rotating, a clamping protrusion can be set on one of the first valve core 31 and the hole wall of the first through hole, and a clamping groove can be set on the other; a clamping protrusion can also be set on one of the hole walls of the second valve core 41 and the second through hole, and a clamping groove can also be set on the other, the clamping protrusion is clamped in the clamping groove, and the extension direction of the clamping protrusion and the clamping groove is from the first open position to the first closed position.

[0096] In some embodiments, see Figure 3 , Figure 4 and Figure 5 At least a first inlet 321 and a first outlet 322 may be provided on one side of the shell 1 , and the first inlet 321 and the first outlet 322 are connected to form a first liquid channel 3 .

[0097] When the first valve core 31 is in the first open position, the first inlet 321 and the first outlet 322 are connected, and the first liquid channel 3 is opened; when the first valve core 31 is in the first closed position, the first valve core 31 blocks the first inlet 321, and the first liquid channel 3 is closed. The other side of the housing 1 may be provided with a second inlet 421 and a second outlet 422, and the second inlet 421 and the second outlet 422 are connected to form a second liquid channel 4; when the second valve core 41 is in the second open position, the second inlet 421 and the second outlet 422 are connected, and the second liquid channel 4 is opened; when the second valve core 41 is in the second closed position, the second valve core 41 blocks the second inlet 421, and the second liquid channel 4 is closed.

[0098] Specifically, when in use, the first inlet 321 can be communicated with the cleaning tank. The first outlet 322 can be communicated with the liquid inlet of the liquid storage tank. The second inlet 421 can be communicated with the liquid discharge port of the liquid storage tank. The second outlet 422 is communicated with the floor drain. When the movable part 2 is in the first position, the first valve core 31 is in the first open position, and the first inlet 321 and the second inlet 421 are communicated. That is, the cleaning tank is communicated with the liquid inlet of the liquid storage tank, so that the liquid in the cleaning tank can enter the liquid storage tank through the first liquid channel 3; at the same time, the second valve core 41 is in the second closed position, and the second valve core 41 blocks the second inlet 421. When the movable part 2 is in the second position, the first valve core 31 is in the first closed position, and the first valve core 31 blocks the first inlet 321; at the same time, the second valve core 41 is in the second open position, and the second inlet 421 and the second outlet 422 are communicated. That is, the liquid discharge port of the liquid storage tank is communicated with the floor drain, so that the liquid in the liquid storage tank can be discharged to the floor drain through the second liquid channel 4.

[0099] In some embodiments, see Figure 5 and Figure 6 , the switching assembly may further include a first elastic member 33, which is disposed in the housing 1 and connected to the first valve core 31, and is used to provide the first valve core 31 with a force toward the first inlet 321, so as to improve the reliability of the first liquid channel 3. Specifically, the first valve core 31 can move to the first open position under the drive of the movable member 2 by overcoming the elastic force of the first elastic member 33, and move to the first closed position under the drive of the movable member 2 and the elastic force of the first elastic member 33; at the same time, due to the elastic force of the first elastic member 33, the first valve core 31 can firmly block the first inlet 321, thereby improving the reliability of the first liquid channel 3. Among them, the first elastic member 33 may be a spring, and the first spring may be disposed between the housing 1 and the first valve body 32.

[0100] The switching assembly may further include a second elastic member 43, which is disposed in the housing 1 and connected to the second valve core 41, and is used to provide the second valve core 41 with a force toward the second inlet 421, so as to improve the reliability of the second liquid channel 4. Specifically, the second valve core 41 can move to the second open position under the drive of the movable member 2 by overcoming the elastic force of the second elastic member 43, and move to the second closed position under the drive of the movable member 2 and the elastic force of the second elastic member 43; at the same time, due to the elastic force of the second elastic member 43, the second valve core 41 can firmly block the second inlet 421, thereby improving the reliability of the second liquid channel 4. The second elastic member 43 may be a spring, and the second spring may be disposed between the housing 1 and the second valve body 42.

[0101] In order to prevent liquid from entering the interior of the reversing device and causing contamination or even damage to the reversing device. Figure 5 and Figure 6 The switching assembly may further include a fifth seal 34, which is disposed in the housing 1 and is used to seal the first liquid channel 3, so that the liquid can only flow out through the first inlet 321 and the first outlet 322, and cannot flow to other positions of the reversing device. The switching assembly may further include a sixth seal 44, which is disposed in the housing and is used to seal the second liquid channel 4, so that the liquid can only flow through the second inlet 421 and the second outlet 422, and cannot flow to other positions of the reversing device, thereby preventing the reversing device from being contaminated or even damaged, and ensuring the normal operation of the reversing device.

[0102] In some embodiments, see Figure 5 and Figure 6 The fifth sealing member 34 may include a retractable first sealing sleeve, which is arranged in the housing 1 and sleeved on the outside of the first valve core 31. One end of the first sealing sleeve is connected to the first valve core 31, and the other end of the first sealing sleeve is connected to the housing 1, and the first sealing sleeve can be retracted and retracted with the movement of the first valve core 31. The sixth sealing member 44 includes a retractable second sealing sleeve, which is arranged in the housing 1 and sleeved on the outside of the second valve core 41. One end of the second sealing sleeve is connected to the second valve core 41, and the other end of the second sealing sleeve is connected to the housing 1, and the second sealing sleeve can be retracted and retracted with the movement of the second valve core 41.

[0103] That is, the first sealing sleeve divides one side of the housing 1 into two mutually isolated parts, one part is the part where the first valve core 31 is located, and the other part is the first liquid channel 3, thereby achieving sealing of the first liquid channel 3. The second sealing sleeve divides the other side of the housing 1 into two mutually isolated parts, one part is the part where the second valve core 41 is located, and the other part is the second liquid channel 4, thereby achieving sealing of the second liquid channel 4.

[0104] In some embodiments, see Figure 5 and Figure 6 The first sealing sleeve and / or the second sealing sleeve can be a bellows structure, so that both can more conveniently expand and contract with the movement of the corresponding valve core under the premise of achieving the sealing effect, thereby not interfering with the movement of the valve core and ensuring the normal operation of the corresponding valve core.

[0105] In some embodiments, the reversing device also includes at least one detection member, which is arranged on the shell 1 and is used to detect the position of the movable member 2, so as to determine whether the movable member 2 is in the first position or the second position through the detection member, thereby determining whether the liquid storage tank is currently in a pumping state or a discharging state.

[0106] Specifically, see Figure 5 , Figure 6 and Figure 7 , the detection member may include a first detection member 51 and a second detection member 52. The movable member 2 includes a fixed member 24. When the movable member 2 is in the first position, the first detection member 51 corresponds to the fixed member 24 and is triggered, and a corresponding control signal is sent; when the movable member 2 is in the second position, the second detection member 52 corresponds to the fixed member 24 and is triggered, and a corresponding control signal is sent. Moreover, the first detection member 51 and the second detection member 52 can be fixed on the housing 1 by the bracket 5.

[0107] According to the above embodiment, if the control system receives the control signal from the first detection member 51, it can be determined that the current movable member 2 is in the first position and the liquid storage tank is in the state of pumping liquid; if the control system receives the control signal from the second detection member 52, it can be determined that the current movable member 2 is in the second position and the liquid storage tank is in the state of discharging liquid, thereby realizing intelligent monitoring of the working state of the reversing device. Wherein, both the first detection member 51 and the second detection member 52 can be photointerrupters.

[0108] In some embodiments, see Figure 8 The reversing device may further include a driving assembly 6, which is drivingly connected to the movable member 2 and is used to drive the movable member 2 to move relative to the housing 1. Specifically, the driving assembly 6 is used to drive the movable member 2 to rotate relative to the housing 1.

[0109] In some embodiments, see Figure 8 The driving assembly 6 may include a driving member 61 and a transmission mechanism, wherein the driving member 61 is used to drive the movable member 2 to move relative to the housing 1 through the transmission mechanism. Specifically, the driving member 61 is used to drive the movable member 2 to rotate relative to the housing 1 through the transmission mechanism. Moreover, one end of the transmission mechanism may be connected to the output end of the driving member 61, and the other end of the transmission mechanism may be connected to the movable member 2. The driving member 61 may be a motor.

[0110] Among them, the movable part 2 may include a gear, a pulley, a cam or a sprocket; the transmission mechanism may include a worm, a gear transmission mechanism, a belt transmission mechanism or a chain transmission mechanism, as long as the transmission mechanism and the movable part can cooperate with each other so that the driving part can drive the movable part 2 to rotate through the transmission mechanism.

[0111] In some embodiments, see Figure 8 , Fig. 9 and Fig.10 , the movable part 2 may include a first gear; the transmission mechanism may include a worm 62 and a second gear 63, one end of the worm 62 is meshedly connected with the first gear through the second gear 63, and the other end of the worm 62 is connected to the output end of the driving member 61. The driving member 61 drives the first gear to rotate through the meshed worm 62 and the second gear 63, thereby driving the movable part 2 to rotate. Among them, the movable part 2 can be disc-shaped. The first gear can be annular, which can be sleeved on the outside of the movable part 2. Moreover, the first gear can include a plurality of meshing teeth 25 arranged along the circumference of the movable part 2. Of course, the first gear and the movable part 2 can be integrally formed.

[0112] Alternatively, the movable member 2 may include a first pulley; the transmission mechanism may include a second pulley and a conveyor belt, the second pulley is connected to the output end of the driving member, and the second pulley is connected to the first pulley through the conveyor belt. The driving member drives the second pulley to rotate, so that the second pulley drives the first pulley to rotate through the conveyor belt, thereby driving the movable member 2 to rotate. The movable member 2 may be disc-shaped. The first pulley may be annular, which may be sleeved on the outside of the movable member 2. Of course, the first pulley and the movable member 2 may be integrally formed.

[0113] like Fig.11 As shown, the embodiment of the utility model also provides a liquid discharge system, including a gas drive unit 7, a liquid storage tank 8, a cleaning tank 9 and the aforementioned reversing device 10; the reversing device generates a negative pressure in the liquid storage tank 8 through the gas drive unit 7 to suck the liquid into the liquid storage tank 8, and generates a positive pressure in the liquid storage tank 8 through the gas drive unit 7 to discharge the liquid from the liquid storage tank 8.

[0114] In some embodiments, at least one of the first gas channels is connected to the liquid storage tank 8, and at least another of the first gas channels is connected to the atmosphere. The gas drive unit 7 includes an air suction port and an exhaust port. At least one of the second gas channels is connected to the air suction port, and at least another of the second gas channels is connected to the exhaust port. The liquid inlet of the liquid storage tank 8 is connected to the cleaning tank 9 through at least one of the first liquid channels, and the liquid outlet of the liquid storage tank 8 discharges the liquid through at least another of the second liquid channels. Among them, the liquid outlet of the liquid storage tank 8 can be connected to a floor drain through at least another of the second liquid channels. The gas drive unit 7 can be a vacuum pump.

[0115] The liquid discharge system provided by the embodiment of the utility model can communicate with the second gas channel connected to the vacuum pump exhaust port through the switching action of the switching component in the reversing device. The first gas channel connected to the atmosphere can be connected to the second gas channel connected to the vacuum pump exhaust port. The liquid channel connecting the liquid storage tank 8 and the cleaning tank 9 can be opened. The second liquid channel connecting the liquid storage tank 8 and the floor drain can be closed. In this way, the liquid storage tank 8 can be connected to the vacuum pump exhaust port, and the vacuum pump exhaust port is connected to the atmosphere. When the vacuum pump is started, a negative pressure can be formed in the liquid storage tank 8, and the liquid in the cleaning tank 9 is sucked into the liquid storage tank 8; accordingly, through the switching action of the switching component, the first gas channel connected to the liquid storage tank 8 can be connected to the second gas channel connected to the vacuum pump exhaust port. The first gas channel connected to the atmosphere can be connected to the second gas channel connected to the vacuum pump exhaust port. The liquid channel connecting the liquid storage tank 8 and the cleaning tank 9 can be closed. The liquid channel connecting the liquid storage tank 8 and the floor drain can be opened. Thus, the liquid storage tank can be connected to the exhaust port of the vacuum pump, and the air suction port of the vacuum pump is connected to the atmosphere. When the vacuum pump is started, positive pressure can be formed in the liquid storage tank 8, and the liquid in the liquid storage tank 8 is discharged to the floor drain. Compared with the prior art, the reversing device provided by the embodiment of the utility model can realize the simultaneous switching of the gas circuit and the liquid circuit, with a high degree of integration of components, a simple structure, and improved reliability.

[0116] The embodiment of the utility model further provides a cleaning device, comprising the aforementioned reversing device.

[0117] The embodiment of the utility model further provides a cleaning device. Since the cleaning device includes a reversing device, the cleaning device has all the beneficial effects of the reversing device, which will not be described in detail here.

[0118] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A reversing device, characterized in that: include: A shell, wherein the shell is provided with a liquid channel and a first gas channel; A switching component, the switching component includes a second gas channel; the switching component is used to switch one of the first gas channels to communicate with different second gas channels, and to control the opening and closing of the liquid channel.

2. The reversing device according to claim 1, characterized in that: The switching assembly includes a movable member, and the movable member can be movably arranged on the housing.

3. The reversing device according to claim 2, characterized in that: At least two of the first gas channels include a first gas channel and a second gas channel; at least two of the second gas channels are arranged on the movable part, including a third gas channel and a fourth gas channel.

4. The reversing device according to claim 3, characterized in that: The movable member is used for rotating relative to the housing between a first position and a second position.

5. The reversing device according to claim 4, characterized in that: In the first position, the first airway is in communication with the third airway, and the second airway is in communication with the fourth airway; in the second position, the first airway is in communication with the fourth airway, and the second airway is in communication with the third airway.

6. The reversing device according to claim 5, characterized in that: The liquid channel includes at least a first liquid channel and a second liquid channel; in the first position, the first liquid channel is open and the second liquid channel is closed; in the second position, the first liquid channel is closed and the second liquid channel is open.

7. The reversing device according to claim 6, characterized in that: The first liquid channel and the second liquid channel are arranged on two sides of the housing opposite to each other.

8. The reversing device according to claim 4, characterized in that: When the movable member rotates from the first position to the second position or when the movable member rotates from the second position to the first position, the rotation angle of the movable member is 180°.

9. The reversing device according to claim 3, characterized in that: A first sealing member is provided on the housing at a position located at the first air passage, and a second sealing member is provided on the housing at a position located at the second air passage; and / or, A third sealing member is provided on the movable member at a position located at the third air passage, and a fourth sealing member is provided on the movable member at a position located at the fourth air passage.

10. The reversing device according to claim 6, characterized in that: The switching assembly also includes a movable first valve core, which is connected to the movable part and moves with the rotation of the movable part. The first valve core has a first open position to open the first liquid channel and a first closed position to close the first liquid channel.

11. The reversing device according to claim 10, characterized in that: The switching assembly also includes a movable second valve core, which is connected to the movable part and moves with the rotation of the movable part. The second valve core has a second open position to open the second liquid channel and a second closed position to close the second liquid channel.

12. The reversing device according to claim 11, characterized in that: In the first position, the first valve core is in the first open position, and the second valve core is in the second closed position; in the second position, the first valve core is in the first closed position, and the second valve core is in the second open position.

13. The reversing device according to claim 11 or 12, characterized in that: The movable part includes a movable body and a fixed part arranged on the movable body, the first valve core and the second valve core are respectively rotatably connected to the fixed part, and the movable part drives the first valve core to move between the first open position and the first closed position, and the second valve core to move between the second open position and the second closed position through the fixed part.

14. The reversing device according to claim 11 or 12, characterized in that: The first valve core and the second valve core include at least an elastic portion; the elastic portions of the first valve core and the second valve core can deform during the rotation of the movable member, and restore the deformation when the movable member reaches the first position or the second position.

15. The reversing device according to claim 10, characterized in that: At least a first inlet and a first outlet are provided on one side of the housing, and the first inlet and the first outlet are connected to form the first liquid channel; When the first valve core is in the first open position, the first inlet is connected to the first outlet, and the first liquid channel is opened; when the first valve core is in the first closed position, the first valve core blocks the first inlet, and the first liquid channel is closed.

16. The reversing device according to claim 15, characterized in that: The switching assembly further includes a first elastic member, which is disposed in the housing and connected to the first valve core, and is used to provide a force for the first valve core toward the first inlet.

17. The reversing device according to claim 15, characterized in that: The switching assembly further includes a fifth sealing member, which is disposed in the housing and is used to seal the first liquid channel.

18. The reversing device according to claim 17, characterized in that: The fifth sealing member includes a retractable first sealing sleeve, which is arranged in the shell and sleeved on the outside of the first valve core. One end of the first sealing sleeve is connected to the first valve core, and the other end of the first sealing sleeve is connected to the shell. The first sealing sleeve can be retracted and retracted as the first valve core moves.

19. The reversing device according to claim 11, characterized in that: The other side of the housing is provided with at least a second inlet and a second outlet, and the second inlet and the second outlet are connected to form the second liquid channel; When the second valve core is in the second open position, the second inlet is connected to the second outlet, and the second liquid channel is opened. When the second valve core is in the second closed position, the second valve core blocks the second inlet, and the second liquid channel is closed.

20. The reversing device according to claim 19, characterized in that: The switching assembly further includes a second elastic member, which is disposed in the housing and connected to the second valve core and is used to provide a force for the second valve core to move toward the second inlet.

21. The reversing device according to claim 19, characterized in that: The switching assembly further includes a sixth sealing member, which is disposed in the housing and is used for sealing the second liquid channel.

22. The reversing device according to claim 21, characterized in that: The sixth sealing member includes a retractable second sealing sleeve, which is arranged in the shell and sleeved on the outside of the second valve core. One end of the second sealing sleeve is connected to the second valve core, and the other end of the second sealing sleeve is connected to the shell. The second sealing sleeve can be retracted and retracted with the movement of the second valve core.

23. The reversing device according to claim 18 or 22, characterized in that: If the fifth sealing member includes a first sealing sleeve, the first sealing sleeve is a bellows structure; If the sixth sealing element includes a second sealing sleeve, the second sealing sleeve is a bellows structure.

24. The reversing device according to claim 4, characterized in that: Also includes: At least one detection member is disposed on the housing and is used to detect the position of the movable member.

25. The reversing device according to claim 24, characterized in that: The detection member includes a first detection member and a second detection member; The movable part includes a fixed part. When the movable part is in the first position, the first detection part is triggered corresponding to the fixed part and sends a corresponding control signal; when the movable part is in the second position, the second detection part is triggered corresponding to the fixed part and sends a corresponding control signal.

26. The reversing device according to claim 2, characterized in that: Also includes: A driving assembly is drivingly connected to the movable member and is used to drive the movable member to move relative to the housing.

27. The reversing device according to claim 26, characterized in that: The driving assembly includes a driving member and a transmission mechanism, and the driving member is used to drive the movable member to move relative to the housing through the transmission mechanism.

28. The reversing device according to claim 27, characterized in that: The movable parts include gears, pulleys, cams, and sprockets; The transmission mechanism includes a worm, a gear transmission mechanism, a belt transmission mechanism or a chain transmission mechanism.

29. A drainage system, characterized in that: include: A gas drive unit, a liquid storage tank and a reversing device as claimed in any one of claims 1 to 28; The reversing device generates negative pressure through the gas driving part to suck the liquid into the liquid storage tank, and generates positive pressure through the gas driving part to discharge the liquid from the liquid storage tank.

30. The drainage system according to claim 29, characterized in that At least one of the first gas passages is in communication with the liquid storage tank, and at least another one of the first gas passages is in communication with the atmosphere; The gas driving part comprises a gas suction port and an exhaust port; at least one of the second gas channels is connected to the gas suction port, and at least another one of the second gas channels is connected to the exhaust port; The liquid inlet of the liquid storage box is connected to the cleaning part through at least one of the liquid channels, and the liquid outlet of the liquid storage box discharges the liquid through at least another one of the liquid channels.

31. A cleaning device, characterized in that: Comprising a reversing device as claimed in any one of claims 1 to 28.

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