An electrically powered sprayer

Abstract

The utility model relates to an electric sprayer, including box, the box includes liquid storage cavity and equipment cabin, the liquid storage cavity is isolated with equipment cabin through the baffle, be equipped with cleaning assembly in the box, the cleaning assembly includes the communication rod who penetrates the baffle and one end enters the liquid storage cavity, the side wall on the communication rod enters the spray head of liquid storage cavity part and is rotationally arranged, the first drive part of axially rotating of driving the communication rod, and the conveying pipeline of the internal flow passage of communication the liquid storage cavity and communication rod, be equipped with the valve assembly of controlling the on-off of conveying pipeline and water pump on the conveying pipeline, the first drive part, conveying pipeline and water pump all set up in the equipment cabin, the electric sprayer designed in the utility model can realize the automatic cleaning of liquid storage cavity, improve the cleaning effect and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sprayer technology, and in particular to an electric sprayer. Background Technology

[0002] With the advent of the intelligent era, agricultural production tools are gradually becoming automated and intelligent. Sprayers, as commonly used agricultural tools, utilize air suction to atomize pesticides or other liquids, spraying them evenly onto other objects. They are widely used in agriculture for spraying pesticides on crops. Since pesticides generally have a pungent and unpleasant odor, the reservoir needs to be cleaned after use. A simple method is to fill the reservoir with water and then shake it to clean it. While convenient, this method is inefficient and ineffective, leaving a layer of pesticide residue on the inner wall of the reservoir. Over time, this not only causes a strong odor and yellowing of the inner wall, but the residual pesticide can also affect the plants to be sprayed next time. Furthermore, inadequate cleaning can lead to the growth of moss or other dirt inside the reservoir, easily clogging the outlet and nozzle during subsequent uses. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this invention is to design an electric sprayer that can automatically clean the liquid storage chamber, thereby improving the cleaning effect and efficiency.

[0004] The objective of this utility model is achieved through the following technical solution: Design an electric sprayer, including a housing, the housing including a liquid storage chamber and an equipment compartment, the liquid storage chamber and the equipment compartment being separated by a partition, the housing containing a cleaning component, the cleaning component including a connecting rod penetrating the partition and one end extending into the liquid storage chamber, a nozzle rotatably mounted on the side wall of the portion of the connecting rod extending into the liquid storage chamber, a first driving component capable of driving the connecting rod to rotate axially, and a delivery pipeline connecting the liquid storage chamber and the internal flow channel of the connecting rod, the delivery pipeline being provided with a valve assembly for controlling the opening and closing of the delivery pipeline, and a water pump, the first driving component, the delivery pipeline and the water pump being all located in the equipment compartment.

[0005] This solution achieves truly automated rinsing by incorporating a rotatable nozzle, a drive mechanism, and a water pump delivery system. Specifically, the nozzle extends into the storage chamber via a connecting rod and rotates under the drive of a first drive component. Combined with water supply through the delivery pipeline, this creates a multi-angle, all-around high-pressure spray coverage. The nozzle utilizes centrifugal force and water flow impact to dynamically rinse the inner wall, thoroughly removing adhering pesticide residues from hard-to-reach areas. Compared to static soaking or simple shaking, the cleaning efficiency and effectiveness are significantly improved. During use, a certain amount of cleaning liquid is injected into the storage chamber. Driven by the water pump, the cleaning liquid is sprayed from the nozzle, which rotates about an axis perpendicular to the connecting rod's axis under the action of the sprayed water. Simultaneously, the first drive component drives the connecting rod to rotate axially, thus enabling the sprayed water to cover the inner wall of the storage chamber from multiple angles and in all directions.

[0006] Furthermore, the delivery pipeline includes a first delivery branch and a second delivery branch, the second delivery branch being connected to the liquid storage chamber, one end of the first delivery branch being connected to the second delivery branch, and the other end being connected to the internal flow channel of the connecting rod, the water pump being disposed on the second delivery branch, and the valve assembly including a first valve disposed on the first delivery branch, the first valve being used to control the on / off state of the first delivery branch and the second delivery branch.

[0007] In this design, the second delivery branch connects to the storage chamber, and a first valve is installed on the first delivery branch. This first valve can be an electromagnetic valve, enabling automatic control of the opening and closing of the first delivery branch. During cleaning of the storage chamber, the first valve is opened, connecting the first delivery branch to the internal flow channel of the connecting rod, thus achieving circulation of the cleaning liquid between the storage chamber, the second delivery branch, the first delivery branch, the connecting rod, the nozzle, and the storage chamber.

[0008] Furthermore, the partition is provided with a connecting port, which is located at the lowest point of the liquid storage cavity, and the second delivery branch is connected to the liquid storage cavity through the connecting port.

[0009] In this solution, the connection port of the partition is located at the lowest point of the liquid storage chamber and is connected to the second delivery pipeline, which can maximize the drainage of residual liquid and improve cleaning efficiency and effect.

[0010] Furthermore, a drain port is provided on the side wall of the equipment compartment, and the second conveying branch is connected to the drain port. The valve assembly also includes a second valve provided on the second conveying branch, which is used to control the opening and closing of the second conveying branch and the drain port.

[0011] In this design, the drain outlet on the side wall of the equipment compartment is located below the storage chamber, which facilitates the natural collection of liquids (such as cleaning fluids and residual chemicals) within the storage chamber. Combined with the second conveying branch, waste liquid can be directly discharged, avoiding the tedious manual dumping of residual liquid. Specifically, a second valve is installed on the second conveying branch. This second valve can be an electromagnetic valve, and its independent control allows the drainage process to be opened / closed as needed. After cleaning is completed, the second valve can be opened to allow the liquid in the storage chamber to flow out from the drain outlet.

[0012] Furthermore, it also includes a spraying module installed outside the housing, and the delivery pipeline also includes a third delivery branch, one end of which is connected to the spraying module and the other end of which is connected to the second delivery branch. The valve assembly also includes a third valve installed on the third delivery branch, which is used to control the connection and disconnection between the third delivery branch and the spraying module.

[0013] In this design, the third delivery branch physically isolates the spraying and cleaning functions at the pipeline level, forming a "dedicated channel." The spraying module delivers the pesticide solution through an independent branch, completely separate from the cleaning water path (second delivery branch), preventing residual water from diluting the pesticide solution or contaminating its components. A third valve, which can be an electromagnetic valve, is installed on the third delivery branch. During spraying operations, the third valve is controlled to open, connecting the third delivery branch to the spraying module. The degree of valve opening can also be controlled to regulate the flow rate.

[0014] Furthermore, the connecting rod is a multi-stage telescopic rod, which can drive the nozzle to move axially up and down.

[0015] In this solution, the multi-stage telescopic rod design can drive the nozzle to rise and fall axially. Its core advantages are that it can flexibly adapt to the depth of the liquid storage chamber, improve the cleaning coverage and efficiency, and take into account the compactness of the structure.

[0016] Furthermore, the cleaning assembly also includes a second drive unit disposed within the equipment compartment, the second drive unit being used to drive the multi-stage telescopic rod to extend and retract, thereby causing the nozzle to move axially up and down.

[0017] In this solution, the multi-stage telescopic rod achieves axial extension and retraction through a second driving component, driving the nozzle to move along the height direction within the liquid storage chamber. Combined with the existing rotation function, a three-dimensional cleaning trajectory of rotation and lifting can be formed, solving the problem of cleaning dead zones in traditional fixed nozzles.

[0018] Furthermore, the top of the box is provided with a liquid inlet.

[0019] In this design, the liquid inlet is located at the top of the tank, improving the convenience of the liquid filling operation.

[0020] Furthermore, it also includes a power supply module for powering the system, and a control module electrically connected to the first drive unit, the water pump, and the power supply module.

[0021] In this solution, the power supply module is responsible for providing stable power. The power supply module can use a lithium battery to achieve multiple charge-discharge cycles. The control module performs logical operations and device scheduling, such as sensor data processing and driving actuators.

[0022] Furthermore, it also includes an indicator module for indicating the power level of the power module.

[0023] In this solution, the indicator module provides real-time feedback on the remaining power supply, improving the ease of use of the electric sprayer.

[0024] Compared with the prior art, the beneficial effects of this utility model are: This solution achieves truly automated rinsing by incorporating a rotatable nozzle, a drive mechanism, and a water pump delivery system. Specifically, the nozzle extends into the storage chamber via a connecting rod and rotates under the drive of a first drive component. Combined with water supply through the delivery pipeline, this creates a multi-angle, all-around high-pressure spray coverage. The nozzle utilizes centrifugal force and water flow impact to dynamically rinse the inner wall, thoroughly removing adhering pesticide residues from hard-to-reach areas. Compared to static soaking or simple shaking, the cleaning efficiency and effectiveness are significantly improved. During use, a certain amount of cleaning liquid is injected into the storage chamber. Driven by the water pump, the cleaning liquid is sprayed from the nozzle, which rotates about an axis perpendicular to the connecting rod's axis under the action of the sprayed water. Simultaneously, the first drive component drives the connecting rod to rotate axially, thus enabling the sprayed water to cover the inner wall of the storage chamber from multiple angles and in all directions. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an electric sprayer according to an embodiment of the present invention.

[0026] Illustration: 1. Housing; 11. Liquid storage chamber; 111. Liquid inlet; 12. Equipment compartment; 121. Liquid outlet; 13. Partition; 131. Connecting port; 2. Cleaning assembly; 21. Connecting rod; 22. Sprayer head; 23. First drive component; 24. Delivery pipeline; 241. First delivery branch; 242. Second delivery branch; 243. Third delivery branch; 25. Valve assembly; 251. First valve; 252. Second valve; 253. Third valve; 26. Water pump; 27. Second drive component; 3. Spraying module; 4. Power supply module; 5. Control module. Detailed Implementation

[0027] To facilitate understanding of this invention, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the invention. However, this invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0028] like Figure 1 As shown, this embodiment provides an electric sprayer, including a housing 1. The housing 1 includes a liquid storage chamber 11 and an equipment compartment 12, which are separated by a partition 13. A liquid inlet 111 is provided at the top of the housing 1, connecting to the liquid storage chamber 11. A medicinal solution or a cleaning solution for cleaning the liquid storage chamber 11 can be poured into the liquid storage chamber 11 through the liquid inlet 111. The shape of the liquid inlet 111 is not limited, and a removable cover can be provided on the liquid inlet 111 to close it. It should be noted that in this embodiment, the housing 1 is a regular cube, with the equipment compartment 12 located at the bottom of the housing 1 and the liquid storage chamber 11 located above the equipment compartment 12. In other possible embodiments, the positions of the equipment compartment 12 and the liquid storage chamber 11 may be arranged in other forms, such as side-by-side, or the equipment compartment 12 occupying only part of the bottom space of the housing 1; no specific limitations are imposed here.

[0029] The housing 1 houses a cleaning assembly 2, which includes a connecting rod 21 that penetrates a partition 13 and extends one end into a liquid storage chamber 11; a nozzle 22 rotatably mounted on the side wall of the portion of the connecting rod 21 extending into the liquid storage chamber 11; a first drive component 23 capable of driving the connecting rod 21 to rotate axially; and a delivery pipe 24 connecting the liquid storage chamber 11 and the internal flow channel of the connecting rod 21. The delivery pipe 24 is equipped with a valve assembly 25 for controlling the opening and closing of the delivery pipe 24, and a water pump 26. The first drive component 23, the delivery pipe 24, and the water pump 26 are all located within the equipment compartment 12. It should be noted that the partition 13 has a through-hole through which the connecting rod 21 can pass, and a sealing structure, such as a multi-stage sealing ring, is used between the two to prevent liquid from the liquid storage chamber 11 from seeping into the equipment compartment 12. Existing technology can be used for the sealing structure, which will not be described in detail here.

[0030] Specifically, the partition 13 has a connecting port 131. The partition 13 is not a flat plate; it can be partially inclined. The connecting port 131 is located at the lowest point of the inclined position of the partition 13, that is, the connecting port 131 is located at the lowest point of the liquid storage chamber 11. The conveying pipeline 24 includes a first conveying branch 241 and a second conveying branch 242. The second conveying branch 242 is connected to the liquid storage chamber 11 through the connecting port 131. One end of the first conveying branch 241 is connected to the second conveying branch 242, and the other end is connected to the internal flow channel of the connecting rod 21. The water pump 26 is installed on the second conveying branch 242. The valve assembly 25 includes a first valve 251 installed on the first conveying branch 241. The first valve 251 is used to control the opening and closing of the first conveying branch 241 and the second conveying branch 242. The first valve 251 can be an electromagnetic valve to realize automatic control of the opening and closing of the first conveying branch 241.

[0031] It should be noted that the delivery pipeline 24 uses a flexible hose or a combination of flexible and rigid pipes, which facilitates the arrangement of the path within the equipment compartment 12. Furthermore, quick-release couplings can be used at the pipeline joints, such as the junction of the first delivery branch 241 and the second delivery branch 242. Of course, in other possible embodiments, the delivery pipeline 24 can also be an integrated design. The connecting rod 21 is hollow inside or has a flexible hose inside to form a flow channel, connecting to the first delivery branch 241. The nozzle 22 is located at the top of the connecting rod 21 and communicates with the flow channel of the connecting rod 21. When cleaning the liquid storage chamber 11, the first valve 251 is opened, connecting the first delivery branch 241 with the internal flow channel of the connecting rod 21, thereby forming a cleaning loop and realizing the circulation of the cleaning liquid between the liquid storage chamber 11, the second delivery branch 242, the first delivery branch 241, the connecting rod 21, the nozzle 22, and the liquid storage chamber 11.

[0032] Furthermore, the nozzle 22 is a hollow cylindrical structure. The middle of the nozzle 22's sidewall is mounted on the sidewall of the connecting rod 21 via a rotary joint. Symmetrical spray holes with opposite directions of liquid injection are formed on the sidewall of the nozzle 22. In use, a certain amount of cleaning liquid is injected into the storage chamber 11 through the inlet 111. Under the action of the water pump 26, a high-pressure water jet is generated and ejected from the spray holes. Under the action of the water jet, the nozzle rotates about an axis perpendicular to the axis of the connecting rod 21.

[0033] Additionally, the first driving component 23 is a drive motor, such as a servo motor or a stepper motor. A mounting plate is provided inside the equipment compartment 12, and the first driving component 23 is fixed to the mounting plate. A bearing seat is provided at the through hole position of the partition 13, and the connecting rod 21 passes through the inner ring of the bearing. Another bearing seat can also be provided on the mounting plate, and one end of the connecting rod 21 is mounted on this bearing seat. A gear transmission structure can be used to transmit power between the first driving component 23 and the connecting rod 21, allowing the first driving component 23 to drive the connecting rod 21 to achieve a 360-degree reciprocating rotation. It should be noted that the gear transmission structure between the first driving component 23 and the connecting rod 21 can use existing technology, and will not be described in detail here.

[0034] In another embodiment, the connecting rod 21 is a multi-stage telescopic rod, and the cleaning assembly 2 also includes a second driving member 27 disposed within the equipment compartment 12. The second driving member 27 is used to drive the multi-stage telescopic rod to extend and retract, thereby driving the nozzle 22 to rise and fall axially. It should be noted that the second driving member 27 is a drive motor, such as a servo motor or a stepper motor. Specifically, the multi-stage telescopic rod includes an outer sleeve and several inner sleeves passing through the outer sleeve. The inner sleeves can extend and retract relative to the outer sleeve. The outer sleeve is fixed to the partition and mounting plate by bearing seats and is drivenly connected to the second driving member 27. In this embodiment, one inner sleeve is provided, and a threaded component is fixed to the bottom of the inner sleeve. A lead screw is rotatably disposed inside the outer sleeve. The lead screw is threadedly connected to the threaded component and partially extends into the inner sleeve. The second driving member 27 and the lead screw are connected by a gear transmission structure or by a coupling. The second driving member 27 drives the lead screw to rotate, thereby driving the threaded component and the inner sleeve to extend and retract relative to the outer sleeve. It should be noted that the inner sleeves can only extend and retract relative to the outer sleeve, but cannot rotate relative to the outer sleeve. The inner sleeve and the outer sleeve have a guide structure that restricts their movement to telescopic motion. For example, the guide structure may include a groove provided on the inner wall of the outer sleeve and arranged along the length of the outer sleeve. Correspondingly, the inner sleeve has a protrusion that protrudes from its outer peripheral wall and can slide back and forth in the groove.

[0035] In this embodiment, the multi-stage telescopic rod design allows the nozzle 22 to move along the height direction within the liquid storage chamber 11. Its core advantages lie in its flexible adaptation to the depth of the liquid storage chamber, improved cleaning coverage and efficiency, and compact structure. At the start of cleaning, the second drive unit 27 drives the multi-stage telescopic rod to raise the nozzle 22 to a set position. The water pump 26 starts working, the first valve 251 opens, and the generated high-pressure water jet is ejected from the nozzle 22's nozzle orifice. Under the action of the water jet, the nozzle 22 rotates. Simultaneously, the first drive unit 23 drives the multi-stage telescopic rod to reciprocate, achieving multi-angle and all-round coverage of the inner wall of the liquid storage chamber 11 by the water jet sprayed from the nozzle 22. Upon completion of the cleaning process, the second drive unit 27 is controlled to return the multi-stage telescopic rod to its original state.

[0036] In addition, the multi-stage telescopic rod can also achieve axial reciprocating extension and retraction through the second drive component 27. Combined with the original rotation function, it can form a three-dimensional cleaning trajectory of rotation and lifting, which can solve the problem of cleaning dead angles of traditional fixed nozzles.

[0037] Furthermore, a drain port 121 is provided on the side wall of the equipment compartment 12, and the second conveying branch 242 is connected to the drain port 121. The valve assembly 25 also includes a second valve 252 provided on the second conveying branch 242. The second valve 252 is used to control the opening and closing of the second conveying branch 242 and the drain port 121. In this embodiment, the drain port 121 on the side wall of the equipment compartment 12 is located below the liquid storage chamber 11, which is conducive to the natural collection of liquid (such as cleaning liquid, residual medicine) in the liquid storage chamber 11. Combined with the second conveying branch 242, the waste liquid can be directly discharged, avoiding the tedious operation of manually dumping the residual liquid. Specifically, a second valve 252 is provided on the second conveying branch 242. The second valve 252 can be an electromagnetic valve. The independent control of the second valve 252 allows the draining process to be opened / closed as needed. After cleaning, the second valve 252 can be controlled to open so that the liquid in the liquid storage chamber 11 flows out from the drain port 121.

[0038] Furthermore, the electric sprayer also includes a spraying module 3 disposed outside the housing 1, and the delivery pipeline 24 includes a third delivery branch 243, one end of which is connected to the spraying module 3 and the other end of which is connected to the second delivery branch 242. The valve assembly 25 also includes a third valve 253 disposed on the third delivery branch 243, which is used to control the connection between the third delivery branch 243 and the spraying module 3. The design of the third delivery branch 243 physically isolates the spraying function from the cleaning function at the pipeline level, forming a dedicated channel. The spraying module 3 delivers the liquid medicine through an independent branch, completely separating it from the cleaning water path (second delivery branch 242), preventing residual water from diluting the liquid medicine or contaminating the medicine components. The third valve 253 is disposed on the third delivery branch 243. The third valve 253 can be an electromagnetic valve. During spraying operations, the third valve 253 is controlled to open to connect the third delivery branch 243 with the spraying module 3. At the same time, the opening size of the third valve 253 can also be controlled to adjust the flow rate.

[0039] Furthermore, the electric sprayer also includes a power module 4 for power supply and a control module 5 electrically connected to the first drive unit 23, the second drive unit 27, the water pump 26, and the power module 4. In this embodiment, the power module 4 is responsible for providing stable power, and the power module 4 can use a lithium battery to achieve multiple charge-discharge cycles. The control module 5 performs logical operations and equipment scheduling, such as sensor data processing and drive of execution components. Specifically, the control module 5 includes a PCB board, on which a charge-discharge circuit, an MCU control chip, a status indicator control circuit, a motor drive module, a solenoid valve drive circuit, a power management circuit, and a peripheral circuit control circuit are integrated.

[0040] Furthermore, the electric sprayer also includes an indicator module (not shown in the figure) for indicating the power level of the power module 4. The indicator module can be an LED indicator or a display screen that shows the power level in real time. In this embodiment, the indicator module uses an LED indicator. When the analog acquisition chip at the front end of the control module 5 detects that the power module 4 is low, the indicator light starts to work, reminding that the power is low and an external adapter can be used to charge the power module. When fully charged, the indicator light turns off.

[0041] It should be noted that the electric sprayer in this embodiment can be a backpack-type electric sprayer, with the carrying strap detachably connected to the housing. Of course, the electric sprayer can also be a non-backpack-type electric sprayer, which is installed as a component module on a vehicle, such as a drone or a vehicle.

[0042] In this embodiment, the electric sprayer achieves truly automated rinsing by incorporating a rotatable nozzle 22, a drive mechanism, and a water pump delivery system. Specifically, the nozzle 22 extends into the liquid storage chamber 11 via a connecting rod 21 and rotates under the drive of the first drive component 23. Combined with water supply through the delivery pipeline 24, it forms a multi-angle, all-around high-pressure spray coverage. The nozzle 22 utilizes centrifugal force and water flow impact to dynamically rinse the inner wall, thoroughly removing adhering pesticide residues from dead corners. Compared to static soaking or simple shaking, the cleaning efficiency and effect are significantly improved. During use, a certain amount of cleaning liquid is injected into the liquid storage chamber 11. Driven by the water pump 26, the cleaning liquid is sprayed from the nozzle 22. Under the action of the sprayed water flow, the nozzle 22 rotates about an axis perpendicular to the connecting rod's axis. Simultaneously, the first drive component 23 drives the connecting rod 21 to rotate axially, thereby enabling the water flow sprayed by the nozzle 22 to cover the inner wall of the liquid storage chamber from multiple angles and in all directions.

[0043] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, the inclusion of "first," "second," etc., in a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric sprayer, comprising a housing, characterized in that, The housing includes a liquid storage chamber and an equipment compartment, which are separated by a partition. A cleaning assembly is provided inside the housing. The cleaning assembly includes a connecting rod that passes through the partition and extends into the liquid storage chamber at one end, a nozzle that is rotatably mounted on the side wall of the part of the connecting rod that extends into the liquid storage chamber, a first driving component that can drive the connecting rod to rotate axially, and a delivery pipeline that connects the liquid storage chamber and the internal flow channel of the connecting rod. The delivery pipeline is provided with a valve assembly for controlling the opening and closing of the delivery pipeline and a water pump. The first driving component, the delivery pipeline and the water pump are all located inside the equipment compartment.

2. The electric sprayer according to claim 1, characterized in that, The delivery pipeline includes a first delivery branch and a second delivery branch. The second delivery branch is connected to the liquid storage chamber. One end of the first delivery branch is connected to the second delivery branch, and the other end is connected to the internal flow channel of the connecting rod. The water pump is installed on the second delivery branch. The valve assembly includes a first valve installed on the first delivery branch. The first valve is used to control the connection and disconnection between the first delivery branch and the second delivery branch.

3. The electric sprayer according to claim 2, characterized in that, The partition is provided with a connecting port, which is located at the lowest point of the liquid storage cavity. The second delivery branch is connected to the liquid storage cavity through the connecting port.

4. The electric sprayer according to claim 2, characterized in that, A drain port is provided on the side wall of the equipment compartment, and the second conveying branch is connected to the drain port. The valve assembly also includes a second valve provided on the second conveying branch, which is used to control the opening and closing of the second conveying branch and the drain port.

5. The electric sprayer according to claim 2, characterized in that, It also includes a spraying module installed outside the housing, and the delivery pipeline includes a third delivery branch, one end of which is connected to the spraying module and the other end of which is connected to the second delivery branch. The valve assembly also includes a third valve installed on the third delivery branch, which is used to control the connection and disconnection between the third delivery branch and the spraying module.

6. The electric sprayer according to claim 1, characterized in that, The connecting rod is a multi-stage telescopic rod that can drive the nozzle to move axially up and down.

7. The electric sprayer according to claim 6, characterized in that, The cleaning assembly also includes a second drive unit disposed within the equipment compartment, the second drive unit being used to drive the multi-stage telescopic rod to extend and retract, thereby causing the nozzle to move axially up and down.

8. The electric sprayer according to claim 1, characterized in that, The top of the box is equipped with a liquid inlet.

9. The electric sprayer according to claim 1, characterized in that, It also includes a power supply module for powering the system, and a control module electrically connected to the first drive unit, the water pump, and the power supply module.

10. The electric sprayer according to claim 9, characterized in that, It also includes an indicator module for indicating the power level of the power module.

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