Lawnmower cleaning base station and method of controlling the same

Abstract

The application is suitable for the technical field of lawn mower base station, and discloses a lawn mower cleaning base station and a control method thereof.The lawn mower cleaning base station comprises a water supply tank, a spraying device, a transfer tank and a gas pressure control device, the water supply tank is used for storing cleaning water, the spraying device is used for spraying the cleaning water to the lawn mower, and the transfer tank is connected with the water supply tank and the spraying device.The gas pressure control device is connected with the transfer tank and has switchable negative pressure mode and positive pressure mode;when the gas pressure control device is in the negative pressure mode, the gas pressure control device is used for discharging the gas in the transfer tank;when the gas pressure control device is in the positive pressure mode, the gas pressure control device is used for conveying the gas to the transfer tank.The lawn mower cleaning base station provided by the application realizes the conveying of the water body from the water supply tank to the spraying device in the mode of "negative pressure suction" and "positive pressure blowing", has simple structure, reduces switching actions, speeds up response, reduces energy consumption, weakens noise and vibration, and reduces the influence on water pressure stability.

Description

Technical Field

[0001] This invention relates to the field of lawnmower base station technology, and in particular to a lawnmower cleaning base station and its control method. Background Technology

[0002] With the increasing automation of home and commercial lawn maintenance, automatic lawnmowers (robotic lawnmowers) have become widely used. To ensure efficient and long-lasting operation, it is crucial to regularly clean the grass clippings, dirt, and other debris adhering to the lawnmower's chassis. Therefore, cleaning stations designed to complement automatic lawnmowers have emerged on the market.

[0003] However, due to design limitations, some lawnmower cleaning stations have high energy consumption when supplying cleaning water to the nozzles, and also generate significant noise and vibration. Furthermore, some lawnmower cleaning stations experience unstable water pressure because the transfer box is placed in a high position. Summary of the Invention

[0004] This application provides a lawnmower cleaning base station and its control method, aiming to solve the technical problems of high energy consumption, large noise and vibration, and increased product height when the lawnmower cleaning base station supplies water to the sprinkler device.

[0005] According to a first aspect of this application, some embodiments provide a lawnmower cleaning base station, comprising: Water supply tank, the water supply tank being used to store cleaning water; A spraying device for spraying cleaning water onto a lawnmower; A transfer box, which connects the water supply tank and the sprinkler system; A pressure control device is connected to the transfer box and has a switchable negative pressure mode and a positive pressure mode. When the pressure control device is in the negative pressure mode, it is used to discharge gas from the transfer box. When the pressure control device is in the positive pressure mode, it is used to supply gas into the transfer box.

[0006] In some embodiments, the pressure control device includes a drive unit and a ventilation assembly; The ventilation assembly is connected to the transfer box and has the negative pressure mode and the positive pressure mode; the driving device is used to drive the ventilation assembly to switch between the negative pressure mode and the positive pressure mode.

[0007] In some embodiments, the ventilation assembly includes an air pump and a ventilation valve, the air pump having an inlet and an outlet, and the ventilation valve being connected between the air pump and the transfer box; The ventilation valve has a first state and a second state, and the driving device is used to drive the ventilation valve to switch between the first state and the second state; when the ventilation valve is in the first state, the air inlet is connected to the transfer box, and the ventilation assembly is in the negative pressure mode; when the ventilation valve is in the second state, the air outlet is connected to the transfer box, and the ventilation assembly is in the positive pressure mode.

[0008] In some embodiments, the ventilation valve includes an air inlet, an air outlet, a first guide port, and a second guide port. The air outlet is connected to the air inlet end, the air inlet is connected to the air outlet end, the first guide port is connected to the transfer box, and the second guide port is connected to the outside or external components. When the air exchange valve is in the first state, the air outlet is connected to the first conductive port, and the air inlet is connected to the second conductive port; when the air exchange valve is in the second state, the air outlet is connected to the second conductive port, and the air inlet is connected to the first conductive port.

[0009] In some embodiments, the ventilation valve also has a third state, in which the air inlet and the air outlet are both closed, or the first and second conductive ports are both closed, and the ventilation assembly is in standby mode. The drive device is used to drive the air exchange valve to switch between the first state, the second state, and the third state.

[0010] In some embodiments, the lawnmower cleaning base station further includes a first valve body and a first water supply pipeline, the first water supply pipeline being connected between the water supply tank and the transfer box, and the first valve body being connected to the first water supply pipeline; The lawnmower cleaning base station also includes a second valve body and a second water supply pipeline. The second water supply pipeline is connected between the transfer box and the spraying device, and the second valve body is connected to the second water supply pipeline. The lawnmower cleaning base station also includes a first water level detection device, which is located inside the transfer box; The lawnmower cleaning base station also includes a pressure detection device, which is located inside the transfer box.

[0011] In some embodiments, the lawnmower cleaning base station also includes a base and a wastewater recycling assembly; The base is provided with a water collection tank, and the sewage recycling component includes a sewage recycling pipeline and a water pump. The sewage recycling pipeline is connected between the water collection tank and the transfer box, and the water pump is connected to the recycling pipeline. The wastewater recovery assembly further includes a third valve body and / or a fourth valve body, which are connected to the wastewater recovery pipeline and located between the water pump and the transfer box; The lawnmower cleaning base station also includes a filter device, which is connected to the base and located at the opening of the water collection tank. The lawnmower cleaning base station also includes a second water level detection device, which is located inside the water collection tank.

[0012] According to a second aspect of this application, some embodiments provide a control method for a lawnmower cleaning base station, used to control the lawnmower cleaning base station described in the first aspect; the control method includes: Step S1: The control module controls the air pressure control device to be in the negative pressure mode to generate negative pressure in the transfer box. The water supply tank is connected to the transfer box to supply water to the transfer box. Step S2: The control module controls the air pressure control device to stop working, the water supply tank and the transfer box are not connected, and the water supply to the transfer box is stopped; or the control module controls the air pressure control device to be in the positive pressure mode so that the air pressure in the transfer box is the same as the external atmospheric pressure, the water supply tank and the transfer box are not connected, and the water supply to the transfer box is stopped. Step S3: The control module controls the air pressure control device to be in the positive pressure mode to generate positive pressure in the transfer box, and the water in the transfer box flows from the transfer box into the spray device under the action of the pressure difference.

[0013] In some embodiments, the lawnmower cleaning base station further includes a first valve body and a first water supply pipeline, the first water supply pipeline being connected between the water supply tank and the transfer box, and the first valve body being connected to the first water supply pipeline; The first valve body is a one-way valve. In step S1, the step of connecting the water supply tank and the transfer tank includes: when the negative pressure in the transfer tank reaches a preset negative pressure value, the first valve body opens automatically under the action of the pressure difference, and the water supply tank and the transfer tank are connected. Alternatively, the first valve body is a control valve, and in step S1, the step of connecting the water supply tank and the transfer box includes: after the control module controls the air pressure control device to be in the negative pressure mode for a first preset time, it controls the first valve body to open, and the water supply tank and the transfer box are connected.

[0014] In some embodiments, the lawnmower cleaning base station further includes a second valve body and a second water supply pipeline, the second water supply pipeline being connected between the transfer box and the spraying device, and the second valve body being connected to the second water supply pipeline; The second valve body is a control valve. The control method, after step S2 and before step S3, further includes: the control module controls the second valve body to open, and the transfer box is connected to the spray device. Alternatively, the second valve body is a one-way valve, and the control method further includes, after step S2 and before step S3: the control module controls the air pressure control device to be in the positive pressure mode to generate positive pressure in the transfer box. When the positive pressure in the transfer box reaches a preset positive pressure value, the second valve body opens automatically under the action of the pressure difference, and the transfer box is connected to the spray device.

[0015] In some embodiments, in step S2, the step of the control module controlling the air pressure control device to stop working includes: after the control module controls the air pressure control device to be in the negative pressure mode for a second preset time, controlling the air pressure control device to stop working; Alternatively, the lawnmower cleaning base station may further include a first water level detection device, which is located inside the transfer box. In step S2, the step of the control module controlling the air pressure control device to stop working includes: the control module controlling the air pressure control device to stop working based on the detection result of the first water level detection device.

[0016] In some embodiments, in step S2, the step of the control module controlling the air pressure control device to be in the positive pressure mode includes: after the control module controls the air pressure control device to be in the negative pressure mode for a second preset time, controlling the air pressure control device to be in the positive pressure mode; Alternatively, the lawnmower cleaning base station may further include a first water level detection device, which is located inside the transfer box. In step S2, the step of the control module controlling the air pressure control device to be in the positive pressure mode includes: the control module controlling the air pressure control device to be in the positive pressure mode based on the detection result of the first water level detection device.

[0017] The lawnmower cleaning base station and its control method provided by this invention, by setting up a transfer box between the water supply tank and the sprinkler device, and by setting up a pneumatic control device connected to the transfer box, the pneumatic control device has a negative pressure mode for discharging gas from the transfer box and a positive pressure mode for supplying gas into the transfer box. Water can be transported from the water supply tank to the sprinkler device through the transfer box via "negative pressure suction" and "positive pressure blowing". This method can reduce energy consumption, noise and vibration, and does not restrict the installation height of the water supply tank, thus avoiding unstable water pressure caused by the water supply tank being placed in a high position. In addition, by setting up a pneumatic control device to achieve dual-mode switching of "negative pressure suction" and "positive pressure blowing", compared with technical solutions that use two independent pumps and valve circuits, or complex combinations of three-way valves or multi-position valves to achieve dual-mode switching, the structure is simpler, the switching actions are reduced, and the response speed is faster.

[0018] Therefore, the lawnmower cleaning base station provided in this application, by setting up an air pressure control device, uses "negative pressure suction" and "positive pressure blowing" to transport water from the water supply tank to the spraying device. It has a simple structure, reduces switching actions, speeds up response, reduces energy consumption, reduces noise and vibration, and does not restrict the installation height of the water supply tank, thereby reducing the impact on water pressure stability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the lawnmower cleaning base station provided in an embodiment of the present invention from one perspective; Figure 2 This is a schematic diagram of the structure of the lawnmower cleaning base station provided in an embodiment of the present invention from another perspective; Figure 3 This is a structural schematic diagram of the lawnmower cleaning base station provided in another embodiment of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the transfer box and the air pressure control device provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the air valve provided in an embodiment of the present invention from one perspective; Figure 6 This is a schematic diagram of the air valve provided in an embodiment of the present invention from another perspective; Figure 7This is an exploded view of the gas valve provided in an embodiment of the present invention; Figure 8 This is an exploded view of the gas valve provided in an embodiment of the present invention from another perspective; Figure 9 This is a schematic diagram of the assembly structure of the water supply tank, sprinkler device and transfer box provided in the embodiments of the present invention; Figure 10 This is a bottom view of the base provided in an embodiment of the present invention; Figure 11 yes Figure 10 A cross-sectional view along line AA; Figure 12 This is a schematic diagram of the assembly structure of the transfer box, sewage recycling component and water collection tank provided in the embodiment of the present invention.

[0021] Explanation of icon numbers: 100. Lawn mower cleaning base station; 10. Water supply tank; 20. Sprinkler device; 30. Transfer box; 40. Air pressure control device; 41. Drive device; 42. Air pump; 421. Air inlet; 422. Air outlet; 43. Air exchange valve; 431. First valve body; 4311. Air inlet; 4312. Air outlet; 432. Second valve body; 4321. First guide port; 4322. Second guide port; 433. First air guide pipe; 4331. First guide pipe; 4332. First seal Components; 434, Second air duct; 4341, Second conduit; 4342, Second seal; 51, First valve body; 52, First water supply line; 53, Second valve body; 54, Second water supply line; 55, Water distribution box; 56, Water supply branch line; 57, First water level detection device; 60, Base; 61, Water collection tank; 62, Second water level detection device; 70, Wastewater recovery assembly; 71, Wastewater recovery line; 72, Water pump; 73, Third valve body; 74, Fourth valve body; 80, Filter device.

[0022] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0025] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0026] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0027] like Figures 1 to 3 As shown, the lawnmower cleaning base station 100 provided in this embodiment of the invention includes a water supply tank 10, a spraying device 20, a transfer box 30, and a pressure control device 40. The water supply tank 10 is used to store cleaning water, the spraying device 20 is used to spray cleaning water onto the lawnmower, and the transfer box 30 is connected to the water supply tank 10 and the spraying device 20. The pressure control device 40 is connected to the transfer box 30 and has a switchable negative pressure mode and a positive pressure mode. When the pressure control device 40 is in negative pressure mode, it is used to discharge gas from the transfer box 30; when the pressure control device 40 is in positive pressure mode, it is used to supply gas into the transfer box 30.

[0028] In use, when water needs to be added to the transfer box 30, the air pressure control device 40 is switched to negative pressure mode to expel the gas inside the transfer box 30, creating negative pressure inside the transfer box 30. The cleaning water in the water supply tank 10 flows into the transfer box 30 under the action of "negative pressure suction" (pressure difference), thus filling the transfer box 30 with water. When water needs to be supplied to the sprinkler device 20, the air pressure control device 40 is switched to positive pressure mode to supply gas into the transfer box 30, creating positive pressure inside the transfer box 30. The water inside the transfer box 30 flows to the sprinkler device 20 under the action of "positive pressure blowing" (pressure difference) for cleaning the lawnmower.

[0029] By adopting the above technical solution, a transfer box 30 is set between the water supply tank 10 and the spray device 20, and a pneumatic control device 40 is connected to the transfer box 30. The pneumatic control device 40 has a negative pressure mode for discharging gas from the transfer box 30 and a positive pressure mode for supplying gas into the transfer box 30. Water can be transported from the water supply tank 10 to the spray device 20 through the transfer box 30 by means of "negative pressure suction" and "positive pressure blowing". This method can reduce energy consumption, noise and vibration, and does not restrict the installation height of the water supply tank 10, thus avoiding unstable water pressure caused by the water supply tank 10 being installed in a high position. In addition, by setting up the pneumatic control device 40 to realize the dual-mode switching of "negative pressure suction" and "positive pressure blowing", compared with the technical solution of using two independent pumps and valve circuits, or using complex three-way valves or multi-position valve combinations to realize dual-mode switching, the structure is simpler, the switching action is reduced, and the response speed is faster.

[0030] Therefore, the lawnmower cleaning base station 100 provided by the present invention, by setting up an air pressure control device 40, uses "negative pressure suction" and "positive pressure blowing" to transport water from the water supply tank 10 to the spray device 20. It has a simple structure, reduces switching actions, speeds up response, reduces energy consumption, reduces noise and vibration, and does not limit the installation height of the water supply tank 10, thereby reducing the impact on water pressure stability.

[0031] In some embodiments, the pneumatic control device 40 includes a drive unit 41 and a ventilation assembly. The ventilation assembly is connected to a transfer box 30 and has a negative pressure mode and a positive pressure mode. The drive unit 41 is used to drive the ventilation assembly to switch between the negative pressure mode and the positive pressure mode. By setting the drive unit 41 to drive the ventilation assembly to switch between the negative pressure mode and the positive pressure mode, the automation of the pneumatic control device 40 is improved.

[0032] Please see Figure 4 The ventilation assembly includes an air pump 42 and a ventilation valve 43. The air pump 42 includes an inlet end 421 and an outlet end 422. The ventilation valve 43 is connected between the air pump 42 and the transfer box 30. The ventilation valve 43 has a first state and a second state. The driving device 41 is used to drive the ventilation valve 43 to switch between the first state and the second state. When the ventilation valve 43 is in the first state, the inlet end 421 is connected to the transfer box 30, and the ventilation assembly is in a negative pressure mode. When the ventilation valve 43 is in the second state, the outlet end 422 is connected to the transfer box 30, and the ventilation assembly is in a positive pressure mode.

[0033] In specific applications, when the drive device 41 drives the ventilation valve 43 to switch to the first state, and the air inlet 421 is connected to the transfer box 30, under the action of the air pump 42, the gas in the transfer box 30 flows into the air pump 42 from the air inlet 421, thereby generating negative pressure in the transfer box 30. When the drive device 41 drives the ventilation valve 43 to switch to the second state, and the air outlet 422 is connected to the transfer box 30, under the action of the air pump 42, the gas is discharged from the air outlet 422 and enters the transfer box 30, thereby generating positive pressure in the transfer box 30.

[0034] In some embodiments, the air pump 42 is a low-noise air pump. Specifically, the low-noise air pump includes, but is not limited to, a scroll air pump, a linear drive air pump, and a diaphragm air pump. This helps to reduce the noise and vibration of the lawnmower cleaning base station 100 during operation, improving the user comfort and stability of the base station.

[0035] Please see Figures 4 to 6 The ventilation valve 43 includes an air inlet 4311, an air outlet 4312, a first connecting port 4321, and a second connecting port 4322. The air outlet 4312 is connected to the air inlet 421, the air inlet 4311 is connected to the air outlet 422, the first connecting port 4321 is connected to the transfer box 30, and the second connecting port 4322 is connected to the outside or external components. The external components can be a box or housing.

[0036] When the air exchange valve 43 is in the first state, the air outlet 4312 is connected to the first guide port 4321, and the air inlet 4311 is connected to the second guide port 4322, thereby connecting the air inlet end 421 of the air pump 42 to the transfer box 30; when the air exchange valve 43 is in the second state, the air outlet 4312 is connected to the second guide port 4322, and the air inlet 4311 is connected to the first guide port 4321, thereby connecting the air outlet end 422 of the air pump 42 to the transfer box 30.

[0037] In a specific application, when the spraying device 20 cleans the lawnmower located at the base station, the air exchange valve 43 is in the second state, and the air pump 42 is turned on. Under the action of the air pump 42, the external gas or the gas in the external components flows into the transfer box 30 through the second guide port 4322, the air outlet 4312, the air inlet 421, the air outlet 422, the air inlet 4311 and the first guide port 4321 in sequence, thereby generating positive pressure in the transfer box 30. As a result, the water in the transfer box 30 flows into the spraying device 20 from the water outlet under the action of the pressure difference, and is sprayed onto the lawnmower by the spraying device 20.

[0038] When the water in the transfer box 30 is used up or falls below the minimum water level, the air exchange valve 43 is set to the first state, and the air pump 42 is turned on. Under the action of the air pump 42, the gas in the transfer box 30 flows to the outside or external components through the first guide port 4321, the air outlet 4312, the air inlet 421, the air outlet 422, the air inlet 4311, and the second guide port 4322 in sequence. This creates a negative pressure in the transfer box 30, which in turn causes the water outside the transfer box 30 to flow into the transfer box 30 under the action of the pressure difference, thus realizing the injection of water into the transfer box 30.

[0039] In some embodiments, the ventilation valve 43 also has a third state. When the ventilation valve 43 is in the third state, both the air inlet 4311 and the air outlet 4312 are closed, or both the first conduction port 4321 and the second conduction port 4322 are closed, and the ventilation assembly is in standby mode. At this time, the ventilation valve 43 is in a non-conducting state, and the gas in the transfer box 30 cannot be discharged through the ventilation valve 43, nor can external gas enter the transfer box 30 through the ventilation valve 43. The driving device 41 is used to drive the ventilation valve 43 to switch between the first state, the second state, and the third state.

[0040] In practical applications, during the water filling process of the transfer box 30, when the water level in the transfer box 30 reaches the preset level, the air pump 42 can be turned off, or the air exchange valve 43 can be set to the third state, so that water filling into the transfer box 30 stops after the pressure difference inside and outside the transfer box 30 disappears. Alternatively, if the transfer box 30 is set at a higher position, when water needs to be supplied to the spray device 20, the air exchange valve 43 can be set to the third state, and the transfer box 30 can be connected to the spray device 20, so that the water in the transfer box 30 flows into the spray device 20 under the action of gravity.

[0041] Please see Figures 4 to 8 The ventilation valve 43 includes a first valve body 431 and a second valve body 432, with the first valve body 431 movably connected to the second valve body 432. An air inlet 4311 and an air outlet 4312 are both located on the first valve body 431, and a first guide port 4321 and a second guide port 4322 are both located on the second valve body 432. A driving device 41 drives one of the first valve body 431 and the second valve body 432 to move, thereby switching the ventilation valve 43 between a first state, a second state, and a third state.

[0042] In specific applications, by driving the first valve body 431 or the second valve body 432 to move, the air inlet 4311 and the air outlet 4312 provided on the first valve body 431 can move relative to the first guide port 4321 and the second guide port 4322 provided on the second valve body 432, thereby realizing the switching of the state of the air exchange valve 43.

[0043] In some embodiments, the first valve body 431 and the second valve body 432 are arranged opposite to each other. The driving device 41 drives the first valve body 431 or the second valve body 432 to rotate around the central axis M of the ventilation valve 43, so that the ventilation valve 43 switches between a first state and a second state. The distances from the air inlet 4311, the air outlet 4312, the first guide port 4321, and the second guide port 4322 to the central axis M of the ventilation valve 43 are the same. This arrangement allows the ventilation valve 43 to switch between a first state, a second state, and a third state by driving the first valve body 431 or the second valve body 432 to rotate around the central axis M of the ventilation valve 43. The structure is simple and occupies little space. In this embodiment, the driving device 41 drives the first valve body 431 to rotate around the central axis M of the ventilation valve 43.

[0044] It is understood that in other embodiments, the driving device 41 may also drive one of the first valve body 431 and the second valve body 432 to move in other ways (such as sliding) relative to the other in order to achieve the switching of the state of the air exchange valve 43.

[0045] In some embodiments, please refer to Figures 5 to 8 The lines connecting the air inlet 4311 and the air outlet 4312, as well as the lines connecting the first guide port 4321 and the second guide port 4322, all pass through the central axis M of the air exchange valve 43. Thus, when one of the air inlet 4311 and the air outlet 4312 is directly opposite one of the first guide port 4321 and the second guide port 4322, driving the first valve body 431 to rotate 180° can switch between the first and second states. Driving the first valve body 431 to rotate more or less than 180° can switch between the first state, the second state, and the third state.

[0046] In practical applications, the first valve body 431 can be driven to rotate 180° clockwise or 180° counterclockwise to achieve alternating switching between the first and second states. Alternatively, the first valve body 431 can be driven to rotate 180° in both directions to achieve alternating switching between the first and second states. Similarly, by driving the first valve body 431 to rotate clockwise, counterclockwise, or repeatedly in both directions by more or less than 180°, switching between the first, second, and third states can be achieved. Clockwise rotation can be set as positive rotation, and counterclockwise rotation can also be set as positive rotation.

[0047] It is understood that in other embodiments, the arrangement of the air inlet 4311 and the air outlet 4312, as well as the arrangement of the first guide port 4321 and the second guide port 4322, may also adopt other methods.

[0048] Please see Figure 7 and Figure 8 The ventilation valve 43 also includes a first air guide pipe 433 and a second air guide pipe 434, both of which are connected between the first valve body 431 and the second valve body 432. Both the first air guide pipe 433 and the second air guide pipe 434 are fixedly connected to the first valve body 431. The first air guide pipe 433 connects one of the first through-port 4321 and the second through-port 4322 to the air outlet 4312, and the second air guide pipe 434 connects the other of the first through-port 4321 and the second through-port 4322 to the air inlet 4311.

[0049] It is understood that in other embodiments, the air exchange valve 43 may not be provided with the first air guide pipe 433 and the second air guide pipe 434. When adopting this technical solution, the first valve body 431 and the second valve body 432 can be closely attached, the air outlet 4312 is directly connected to one of the first guide port 4321 and the second guide port 4322, and the air inlet 4311 is directly connected to the other of the first guide port 4321 and the second guide port 4322.

[0050] It is understood that in other embodiments, the first air guide pipe 433 and the second air guide pipe 434 may also be fixedly connected to the second valve body 432. The first air guide pipe 433 is used to connect one of the air outlet 4312 and the air inlet 4311 to the first connecting port 4321, and the second air guide pipe 434 is used to connect the other of the air outlet 4312 and the air inlet 4311 to the second connecting port 4322.

[0051] In some embodiments, the first air guide pipe 433 includes a first conduit 4331 and a first seal 4332. The first seal 4332 is sleeved on the outer periphery of the first conduit 4331, and the length of the first seal 4332 is slightly greater than the length of the first conduit 4331. The second air guide pipe 434 includes a second conduit 4341 and a second seal 4342. The second seal 4342 is sleeved on the outer periphery of the second conduit 4341, and the length of the second seal 4342 is slightly greater than the length of the second conduit 4341. Both the first conduit 4331 and the second conduit 4341 are fixedly connected to the first valve body 431.

[0052] Please see Figure 1 and Figure 9The lawnmower cleaning base station 100 also includes a first valve body 51 and a first water supply pipe 52. The first water supply pipe 52 is connected between the water supply tank 10 and the transfer box 30, and the first valve body 51 is connected to the first water supply pipe 52. Cleaning water in the water supply tank 10 is transported to the transfer box 30 through the first water supply pipe 52. The first valve body 51 is used to control the opening and closing of the first water supply pipe 52. In specific applications, when water needs to be added to the transfer box 30, the first valve body 51 controls the first water supply pipe 52 to be open, allowing the cleaning water in the water supply tank 10 to flow into the transfer box 30; when water does not need to be added to the transfer box 30, the first valve body 51 controls the first water supply pipe 52 to be closed.

[0053] In some embodiments, the first valve body 51 is a one-way valve configured to allow water to flow unidirectionally from the supply tank 10 to the transfer tank 30. This prevents water from flowing back from the transfer tank 30 into the supply tank 10. In specific applications, when a negative pressure is generated in the transfer tank 30, the first valve body 51 opens to allow water from the supply tank 10 to flow into the transfer tank 30. It is understood that in other embodiments, the first valve body 51 may also be configured as a solenoid valve, which controls the opening and closing of the first water supply line 52.

[0054] Please see Figure 3 and Figure 9 The lawnmower cleaning base station 100 also includes a second valve body 53 and a second water supply pipe 54. The second water supply pipe 54 is connected between the transfer box 30 and the sprinkler device 20, and the second valve body 53 is connected to the second water supply pipe 54. Water in the transfer box 30 is transported to the sprinkler device 20 through the second water supply pipe 54, and the second valve body 53 is used to control the on / off state of the water supply pipe. In specific applications, when cleaning the lawnmower located at the base station, the second valve body 53 controls the second water supply pipe 54 to be open, and the transfer box 30 can supply water to the sprinkler device 20 through the second water supply pipe 54; when not cleaning the lawnmower located at the base station, the second valve body 53 controls the second water supply pipe 54 to be closed.

[0055] In some embodiments, the second valve body 53 is a solenoid valve, and the opening and closing of the solenoid valve controls the connection and disconnection of the second water supply pipeline 54. It is understood that in other embodiments, the second valve body 53 may also be configured as a one-way valve.

[0056] In some embodiments, multiple sprinkler devices 20 are provided, and the lawnmower cleaning base station 100 also includes a water distribution box 55 and multiple water supply branches 56. A second water supply pipeline 54 connects the transfer box 30 and the water distribution box 55, and each sprinkler device 20 is connected to the water distribution box 55 through a water supply branch 56. Of course, in other embodiments, the water distribution box 55 and water supply branches 56 may not be provided, and the water supply pipeline may be directly connected to the transfer box 30 and the sprinkler device 20.

[0057] Please see Figure 1 and Figure 9 The lawnmower cleaning base station 100 also includes a first water level detection device 57, which is located inside the transfer box 30. By setting up the first water level detection device 57, the water level inside the transfer box 30 can be detected, thereby determining whether there is enough water in the transfer box 30 to supply water to the sprinkler device 20 when the transfer box 30 is supplying water, or whether water filling needs to be stopped when filling the transfer box 30. The first water level detection device 57 can be a water level sensor.

[0058] It is understood that in other embodiments, the lawnmower cleaning base station 100 may also include a pressure detection device, which is located inside the transfer box 30. When this technical solution is adopted, the water level can be determined by the water pressure at the bottom of the transfer box 30. The pressure detection device is a pressure sensor.

[0059] Please see Figure 1 , Figures 10 to 12 The lawnmower cleaning base station 100 also includes a base 60 and a wastewater recycling component 70. The base 60 is provided with a water collection tank 61. The wastewater recycling component 70 includes a wastewater recycling pipeline 71 and a water pump 72. The wastewater recycling pipeline 71 is connected between the water collection tank 61 and the transfer box 30, and the water pump 72 is connected to the wastewater recycling pipeline 71.

[0060] When the lawnmower returns to the lawnmower cleaning base station 100 for cleaning, it moves onto the base 60. Wastewater generated during cleaning of the lawnmower on the base 60 collects in the collection tank 61. A wastewater recovery pipe 71 connects the collection tank 61 and the transfer box 30, allowing the wastewater collected in the collection tank 61 to be transported to the transfer box 30. This prevents wastewater from being discharged into the surrounding environment of the base station, thus reducing the burden of secondary cleaning for users.

[0061] In practical applications, when cleaning the lawnmower located on the base 60, the water pump 72 is turned on. Under the action of the water pump 72, the sewage in the water collection tank 61 is transported to the transfer box 30 to realize the recycling of sewage.

[0062] Please see Figure 12 The wastewater recovery assembly 70 also includes a third valve body 73 and / or a fourth valve body 74, which are connected to the wastewater recovery pipeline 71 and located between the water pump 72 and the transfer tank 30. The third valve body 73 is a solenoid valve, and the fourth valve body 74 is a check valve. By setting the solenoid valve and / or the check valve, the on / off state of the wastewater recovery pipeline 71 can be controlled to ensure that the wastewater recovery pipeline 71 is open only when wastewater recovery is performed, thereby preventing water in the transfer tank 30 from flowing back into the collection tank 61.

[0063] Please see Figure 1and Figure 11 The lawnmower cleaning base station 100 also includes a filter device 80, which is connected to the base 60 and located at the opening of the water collection tank 61. In this way, the wastewater generated during the cleaning process is filtered by the filter device 80 and collected in the water collection tank 61, preventing grass clippings, solid particles and other solid impurities from entering the water collection tank 61, thus achieving the separation of solid impurities and wastewater.

[0064] In some embodiments, the filter device 80 is detachably connected to the base 60. This allows the filter device 80 to be removed for cleaning, maintenance, or replacement after a period of use, thus preventing clogging.

[0065] Please see Figure 1 and Figure 12 The lawnmower cleaning base station 100 also includes a second water level detection device 62, which is located inside the water collection tank 61. This allows the second water level detection device 62 to detect the water level in the water collection tank 61. In practical applications, the water level in the water collection tank 61 can be used to determine the water volume in the transfer box 30 or whether wastewater recycling has been activated. For example, if the water level in the water collection tank 61 determines the water volume in the transfer box 30, and after the lawnmower cleaning has stopped, and during the wastewater recycling process, the second water level detection device 62 detects that the water level in the water collection tank 61 remains unchanged for a certain period of time, it can be determined that the water volume in the transfer box 30 has reached its maximum.

[0066] This invention also provides a control method for a lawnmower cleaning base station 100, used to control the aforementioned lawnmower cleaning base station 100; the control method includes: Step S1: The control module controls the air pressure control device to be in negative pressure mode to generate negative pressure in the transfer box, and the water supply tank is connected to the transfer box to supply water to the transfer box. Step S2: The control module controls the air pressure control device to stop working, the water supply tank and the transfer box are not connected, and the water supply to the transfer box is stopped; or the control module controls the air pressure control device to be in positive pressure mode so that the air pressure in the transfer box is the same as the outside atmospheric pressure, the water supply tank and the transfer box are not connected, and the water supply to the transfer box is stopped. In step S3, the control module controls the air pressure control device to be in positive pressure mode to generate positive pressure in the transfer box. Under the action of pressure difference, the water in the transfer box flows from the transfer box into the spray device.

[0067] This allows the clean water in the water supply tank 10 to be delivered to the spray device 20.

[0068] In some embodiments, the lawnmower cleaning base station 100 further includes a first valve body 51 and a first water supply pipe 52, the first water supply pipe 52 being connected between the water supply tank 10 and the transfer box 30, and the first valve body 51 being connected to the first water supply pipe 52.

[0069] In some embodiments, the first valve body 51 is a one-way valve. In step S1, the step of connecting the water supply tank and the transfer tank includes: when the negative pressure in the transfer tank reaches a preset negative pressure value, the first valve body opens automatically under the action of the pressure difference, and the water supply tank and the transfer tank are connected.

[0070] It is understood that in other embodiments, the first valve body 51 can also be configured as a control valve. In step S1, the step of connecting the water supply tank and the transfer tank includes: after the control module controls the air pressure control device to be in negative pressure mode for a first preset time, it controls the first valve body to open, and the water supply tank and the transfer tank are connected.

[0071] In some embodiments, the lawnmower cleaning base station 100 further includes a second valve body 53 and a second water supply line 54, the second water supply line 54 being connected between the transfer box 30 and the spray device 20, and the second valve body 53 being connected to the second water supply line 54.

[0072] In some embodiments, the second valve body 53 is a control valve, and the control method further includes, after step S2 and before step S3, the control module controls the second valve body to open, and the transfer box is connected to the spray device.

[0073] It is understood that in other embodiments, the second valve body 53 can also be set as a one-way valve. The control method after step S2 and before step S3 also includes: the control module controls the air pressure control device to be in positive pressure mode to generate positive pressure in the transfer box. When the positive pressure in the transfer box reaches the preset positive pressure value, the second valve body opens automatically under the action of the pressure difference, and the transfer box is connected to the spray device.

[0074] In some embodiments, step S2, where the control module controls the pneumatic control device 40 to stop working, includes: after the control module controls the pneumatic control device to be in negative pressure mode for a second preset time, the control module controls the pneumatic control device to stop working. The second preset time can be a pre-set working time for the pneumatic control device 40 in negative pressure mode, and the second preset time is greater than the first preset time.

[0075] It is understood that in other embodiments, the lawnmower cleaning base station 100 may also include a first water level detection device 57, which is located inside the transfer box 30. In step S2, the step of the control module controlling the air pressure control device 40 to stop working includes: the control module controlling the air pressure control device to stop working based on the detection result of the first water level detection device. For example, when the first water level detection device 57 detects that the water level inside the transfer box 30 has reached a high level, the control module controls the air pressure control device 40 to stop working based on this detection result.

[0076] In some embodiments, step S2, the step of the control module controlling the air pressure control device to be in positive pressure mode includes: after the control module controls the air pressure control device to be in negative pressure mode for a second preset time, controlling the air pressure control device to be in positive pressure mode.

[0077] It is understood that in other embodiments, the lawnmower cleaning base station 100 also includes a first water level detection device 57, which is located inside the transfer box 30. In step S2, the step of the control module controlling the air pressure control device to be in positive pressure mode includes: the control module controlling the air pressure control device to be in positive pressure mode based on the detection result of the first water level detection device. For example, when the first water level detection device 57 detects that the water level inside the transfer box 30 has reached a high level and can be discharged, the control module controls the air pressure control device 40 to be in positive pressure mode based on this detection result.

[0078] In some embodiments, the pneumatic control device 40 includes an air pump 42, an air exchange valve 43, and a drive device 41. The air pump 42 includes an air inlet 421 and an air outlet 422. The ventilation valve 43 includes an air inlet 4311, an air outlet 4312, a first guide port 4321, and a second guide port 4322. The air outlet 4312 is connected to the air inlet 421, the air inlet 4311 is connected to the air outlet 422, the first guide port 4321 is connected to the transfer box 30, and the second guide port 4322 is connected to the outside or external components. The ventilation valve 43 has a first state, a second state, and a third state. When the ventilation valve 43 is in the first state, the outlet 4312 is connected to the first guide port 4321, and the inlet 4311 is connected to the second guide port 4322. When the ventilation valve 43 is in the second state, the outlet 4312 is connected to the second guide port 4322, and the inlet 4311 is connected to the first guide port 4321. When the ventilation valve 43 is in the third state, both the inlet 4311 and the outlet 4312 are closed, or both the first guide port 4321 and the second guide port 4322 are closed. The driving device 41 is used to drive the ventilation valve 43 to switch between the first state, the second state, and the third state. In step S1, the step of the control module controlling the air pressure control device to be in negative pressure mode includes: the control module controlling the drive device to drive the air exchange valve to the first state and controlling the air pump to open. In step S2, the step of the control module controlling the air pressure control device to stop working includes: the control module controlling the air pump to stop working, or the control module controlling the drive device to drive the air exchange valve to the third state. In steps S2 and S3, the step of the control module controlling the air pressure control device to be in positive pressure mode includes: the control module controlling the drive device to drive the air exchange valve to the second state, and controlling the air pump to be in the open state.

[0079] The above description is only a part of the embodiments of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the inventive concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A lawnmower cleaning base station, characterized in that, include: Water supply tank, the water supply tank being used to store cleaning water; A spraying device for spraying cleaning water onto a lawnmower; A transfer box, which connects the water supply tank and the sprinkler system; A pressure control device is connected to the transfer box and has a switchable negative pressure mode and a positive pressure mode. When the pressure control device is in the negative pressure mode, it is used to discharge gas from the transfer box. When the pressure control device is in the positive pressure mode, it is used to supply gas into the transfer box.

2. The lawnmower cleaning base station as described in claim 1, characterized in that, The air pressure control device includes a drive device and an air exchange component; The ventilation assembly is connected to the transfer box and has the negative pressure mode and the positive pressure mode; the driving device is used to drive the ventilation assembly to switch between the negative pressure mode and the positive pressure mode.

3. The lawnmower cleaning base station as described in claim 2, characterized in that, The ventilation assembly includes an air pump and a ventilation valve. The air pump includes an air inlet and an air outlet, and the ventilation valve is connected between the air pump and the transfer box. The air exchange valve has a first state and a second state, and the driving device is used to drive the air exchange valve to switch between the first state and the second state. When the ventilation valve is in the first state, the air inlet is connected to the transfer box, and the ventilation assembly is in the negative pressure mode; When the ventilation valve is in the second state, the air outlet is connected to the transfer box, and the ventilation assembly is in the positive pressure mode.

4. The lawnmower cleaning base station as described in claim 3, characterized in that, The ventilation valve includes an air inlet, an air outlet, a first guide port, and a second guide port. The air outlet is connected to the air inlet end, the air inlet is connected to the air outlet end, the first guide port is connected to the transfer box, and the second guide port is connected to the outside or external components. When the air exchange valve is in the first state, the air outlet is connected to the first conductive port, and the air inlet is connected to the second conductive port; When the air exchange valve is in the second state, the air outlet is connected to the second guide port, and the air inlet is connected to the first guide port.

5. The lawnmower cleaning base station as described in claim 4, characterized in that, The ventilation valve also has a third state. When the ventilation valve is in the third state, both the air inlet and the air outlet are closed, or both the first guide port and the second guide port are closed, and the ventilation assembly is in standby mode. The drive device is used to drive the air exchange valve to switch between the first state, the second state, and the third state.

6. The lawnmower cleaning base station as described in claim 1, characterized in that, The lawnmower cleaning base station also includes a first valve body and a first water supply pipeline, the first water supply pipeline being connected between the water supply tank and the transfer box, and the first valve body being connected to the first water supply pipeline; The lawnmower cleaning base station also includes a second valve body and a second water supply pipeline. The second water supply pipeline is connected between the transfer box and the spraying device, and the second valve body is connected to the second water supply pipeline. The lawnmower cleaning base station also includes a first water level detection device, which is located inside the transfer box; The lawnmower cleaning base station also includes a pressure detection device, which is located inside the transfer box.

7. The lawnmower cleaning base station as described in any one of claims 1 to 6, characterized in that, The lawnmower cleaning base station also includes a base and a wastewater recycling component; The base is provided with a water collection tank, and the sewage recycling component includes a sewage recycling pipeline and a water pump. The sewage recycling pipeline is connected between the water collection tank and the transfer box, and the water pump is connected to the recycling pipeline. The wastewater recovery assembly further includes a third valve body and / or a fourth valve body, which are connected to the wastewater recovery pipeline and located between the water pump and the transfer box; The lawnmower cleaning base station also includes a filter device, which is connected to the base and located at the opening of the water collection tank. The lawnmower cleaning base station also includes a second water level detection device, which is located inside the water collection tank.

8. A control method for a lawnmower cleaning base station, characterized in that, For controlling a lawnmower cleaning base station as described in any one of claims 1 to 7; the control method includes: Step S1: The control module controls the air pressure control device to be in the negative pressure mode to generate negative pressure in the transfer box. The water supply tank is connected to the transfer box to supply water to the transfer box. Step S2: The control module controls the air pressure control device to stop working, the water supply tank and the transfer box are not connected, and the water supply to the transfer box is stopped; or the control module controls the air pressure control device to be in the positive pressure mode so that the air pressure in the transfer box is the same as the external atmospheric pressure, the water supply tank and the transfer box are not connected, and the water supply to the transfer box is stopped. Step S3: The control module controls the air pressure control device to be in the positive pressure mode to generate positive pressure in the transfer box, and the water in the transfer box flows from the transfer box into the spray device under the action of the pressure difference.

9. The control method for the lawnmower cleaning base station as described in claim 8, characterized in that, The lawnmower cleaning base station also includes a first valve body and a first water supply pipeline, the first water supply pipeline being connected between the water supply tank and the transfer box, and the first valve body being connected to the first water supply pipeline; The first valve body is a one-way valve. In step S1, the step of connecting the water supply tank and the transfer tank includes: when the negative pressure in the transfer tank reaches a preset negative pressure value, the first valve body opens automatically under the action of the pressure difference, and the water supply tank and the transfer tank are connected. Alternatively, the first valve body is a control valve, and in step S1, the step of connecting the water supply tank and the transfer box includes: after the control module controls the air pressure control device to be in the negative pressure mode for a first preset time, it controls the first valve body to open, and the water supply tank and the transfer box are connected.

10. The control method for the lawnmower cleaning base station as described in claim 8, characterized in that, The lawnmower cleaning base station also includes a second valve body and a second water supply pipeline, the second water supply pipeline being connected between the transfer box and the spraying device, and the second valve body being connected to the second water supply pipeline; The second valve body is a control valve. The control method, after step S2 and before step S3, further includes: the control module controls the second valve body to open, and the transfer box is connected to the spray device. Alternatively, the second valve body is a one-way valve, and the control method further includes, after step S2 and before step S3: the control module controls the air pressure control device to be in the positive pressure mode to generate positive pressure in the transfer box. When the positive pressure in the transfer box reaches a preset positive pressure value, the second valve body opens automatically under the action of the pressure difference, and the transfer box is connected to the spray device.

11. The control method for the lawnmower cleaning base station as described in claim 8, characterized in that, In step S2, the step of the control module controlling the air pressure control device to stop working includes: after the control module controls the air pressure control device to be in the negative pressure mode for a second preset time, the control module controls the air pressure control device to stop working. Alternatively, the lawnmower cleaning base station may further include a first water level detection device, which is located inside the transfer box. In step S2, the step of the control module controlling the air pressure control device to stop working includes: the control module controlling the air pressure control device to stop working based on the detection result of the first water level detection device.

12. The control method for the lawnmower cleaning base station as described in claim 8, characterized in that, In step S2, the step of the control module controlling the air pressure control device to be in the positive pressure mode includes: after the control module controls the air pressure control device to be in the negative pressure mode for a second preset time, controlling the air pressure control device to be in the positive pressure mode; Alternatively, the lawnmower cleaning base station may further include a first water level detection device, which is located inside the transfer box. In step S2, the step of the control module controlling the air pressure control device to be in the positive pressure mode includes: the control module controlling the air pressure control device to be in the positive pressure mode based on the detection result of the first water level detection device.

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