Mobile water and fertilizer vehicle

Abstract

The application discloses a mobile water and fertilizer vehicle, which comprises a vehicle body, a hinged door and a ventilation opening are arranged on one side of the vehicle body; a moving mechanism comprising a supporting seat one, a connecting shaft and a wheel; a traction and braking mechanism comprising a supporting seat two, a handle, a limiting rod and a brake pad, the limiting rod and the handle are buckled to link the brake pad to clamp the wheel, thereby realizing parking locking; a plurality of independent water and fertilizer tanks are placed in the vehicle body, the tank bodies are supported by supporting legs and are communicated with a water pipe through a pipe opening and a switch. The device is integrated with an intelligent fertilizer distribution unit, an EC / pH sensor is used for feedback automatic adjustment of the opening degree of the switch to control the concentration of the fertilizer solution; an internet of things module is arranged to support remote control, and a soil moisture sensor is arranged to realize on-demand irrigation. The fertilizer distribution pipeline adopts double filtration of centrifugal and mesh filters, and an automatic backwashing system is combined to prevent blockage. The application solves the problems of inconvenient movement, low fertilizer distribution precision and easy blockage of the pipeline of the traditional device, and has the advantages of flexibility and convenient maintenance.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and intelligent irrigation technology, specifically a mobile water and fertilizer truck. Background Technology

[0002] With the development of modern agriculture, fertigation technology has been widely adopted due to its ability to effectively improve fertilizer utilization, reduce resource waste, and enhance crop yield and quality. However, water and fertilizer management still faces many challenges in facility agriculture (such as greenhouses and multi-span greenhouses) and some hilly orchards. Traditional fixed fertigation systems, while highly automated, require large investments, are complex to install, and lack flexibility, failing to meet the needs of flexible, multi-site, small-scale operations. Manually carrying fertilizer and water for irrigation is extremely labor-intensive and results in poor fertilizer uniformity, severely restricting agricultural production efficiency. Existing mobile fertilization equipment often suffers from unreasonable structural design, inconvenient operation, inability to achieve precise fertilizer application, and a lack of effective pipeline cleaning and maintenance mechanisms, leading to fertilizer residue clogging pipes and affecting subsequent use. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the above-mentioned technical defects and provide a mobile water and fertilizer truck.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A mobile water and fertilizer truck includes:

[0006] The vehicle body has a hinged door on one side end face and several ventilation openings on the outer side end face of the vehicle body.

[0007] The moving mechanism includes two support seats fixedly connected to both ends of the vehicle body, a connecting shaft rotatably connected to the support seats, and wheels fixedly connected to both ends of the connecting shaft.

[0008] The traction braking mechanism includes a support base two fixedly connected to the lower front end of the vehicle body, a front connecting shaft that penetrates the support base two and is rotatably connected to it, a handle hinged to the front end of the support base two, and a limiting rod hinged to the upper protrusion of the support base two; the limiting rod penetrates the handle and is snapped to it, and a connecting rod is penetrated and connected below the handle, with brake pads fixedly connected to both ends of the connecting rod.

[0009] A water and fertilizer storage mechanism includes at least one water and fertilizer tank placed inside the vehicle body. The water and fertilizer tank includes a tank body, a support leg fixedly connected to the bottom of the tank body, a pipe opening provided on one side of the tank body, and a switch.

[0010] The fertilizer irrigation system includes a water pipe connected to one side of the vehicle body. The water pipe is divided into an inlet pipe and an outlet pipe, and is connected to the inlet of the fertilizer tank.

[0011] Furthermore, the water and fertilizer storage mechanism includes multiple independently set water and fertilizer tanks, which respectively store water-soluble fertilizers of nitrogen, phosphorus, potassium and trace elements, and each water and fertilizer tank is equipped with an independent switch to realize multi-channel independent fertilizer absorption.

[0012] Furthermore, it also includes an intelligent fertilizer mixing unit, which includes an EC sensor and a pH sensor installed on the water pipe, and a control motherboard electrically connected to the sensors; the control motherboard is configured to automatically adjust the opening degree of the water-fertilizer tank switch according to the fertilizer concentration and pH signals fed back by the sensors, so as to control the fertilizer concentration within the range of 0.1%–0.8%.

[0013] Furthermore, the intelligent fertilizer dispensing unit also integrates an Internet of Things (IoT) communication module, which supports remote control via the machine's touchscreen or a mobile terminal APP, and can perform timed and quantitative irrigation operations according to preset irrigation duration, cycle, and single application amount.

[0014] Furthermore, the wheels in the traction braking mechanism adopt a universal wheel structure, which, together with the traction action of the handle, enables the vehicle body to adapt to greenhouses with a row spacing of not less than 60cm and slopes with a gradient of not more than 25°.

[0015] Furthermore, the fertilizer mixing and irrigation mechanism is also equipped with a dual filtration component, which uses a combination of a centrifugal filter and a mesh filter in series to prevent impurities in the fertilizer solution from clogging the subsequent drip irrigation or micro-spraying devices.

[0016] Furthermore, the vehicle body is also equipped with an automatic backwashing system, which can automatically control the water flow to backwash the water pipes and fertilizer tank after the irrigation operation is completed, so as to reduce fertilizer crystallization residue.

[0017] Furthermore, the handle at the front end of the second support base and the limiting rod form a spring locking mechanism. When the limiting rod is engaged with the handle, the connecting rod drives the brake pads to clamp the wheel, thereby achieving parking lock.

[0018] Furthermore, it also includes an environmental monitoring unit, which includes a soil moisture sensor that is electrically connected to the intelligent fertilizer application unit. When the soil moisture content is detected to be lower than a set threshold, the unit automatically triggers irrigation operations and automatically stops after the target humidity is reached.

[0019] Furthermore, the vehicle body is made of corrosion-resistant and waterproof material, and the inner wall of the water and fertilizer tank is coated with an acid and alkali corrosion resistant coating to adapt to the long-term storage and application of various acidic or alkaline water-soluble fertilizers.

[0020] The advantages of this invention compared to existing technologies are:

[0021] 1. This invention, through a moving mechanism consisting of a support base one, a connecting shaft, and wheels, and a traction mechanism consisting of a support base two and a handle, enables the equipment to have extremely strong relocation capabilities. In particular, the use of omnidirectional wheels, combined with the traction effect of the handle, allows the vehicle to easily move through greenhouses with row spacing of not less than cm and slopes with a gradient of not more than °, solving the problem that traditional fixed water and fertilizer machines cannot enter complex plots.

[0022] 2. Unlike traditional simple brakes, this invention features a unique mechanical linkage locking structure. The spring locking mechanism is formed by the cooperation of the protrusion on the upper part of the support base, the limiting rod, the connecting rod, and the brake pads. When the limiting rod is engaged with the handle, the connecting rod drives the brake pads to clamp the wheel, achieving parking lock. This structure is simple to operate, responds quickly, and effectively prevents the equipment from slipping when operating on slopes or uneven ground, ensuring operational safety.

[0023] 3. Multiple independent water and fertilizer tanks are installed inside the vehicle body, stably supported by outriggers, and independently controlled via pipe openings and switches. This design allows for separate storage of nitrogen, phosphorus, potassium, and trace elements. Combined with an intelligent fertilizer mixing unit, the opening degree of each switch can be adjusted in real time according to crop needs, precisely controlling the fertilizer solution concentration within the range of 0.1%–0.8%, effectively avoiding uneven concentration, seedling burn, or nutrient deficiency caused by traditional manual mixing. Attached Figure Description

[0024] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ;

[0025] Figure 2 This is a three-dimensional illustration of the present invention. Figure 2 ;

[0026] Figure 3 This is a three-dimensional illustration of the present invention. Figure 3 ;

[0027] Figure 4 This is a cross-sectional schematic diagram of the present invention;

[0028] Figure 5 This is a three-dimensional schematic diagram of the water and fertilizer tank of the present invention;

[0029] Figure 6 This is a flowchart illustrating the overall operation of the mobile water and fertilizer truck of the present invention.

[0030] Figure 7 This is the core logic diagram of the intelligent fertilizer application and precision irrigation of the present invention;

[0031] Figure 8 This is a flowchart of the water and fertilizer tank replacement and pipeline cleaning and maintenance process of the present invention.

[0032] As shown in the figure: 1. Vehicle body; 2. Water pipe; 3. Opening door; 4. Support seat one; 5. Connecting shaft; 6. Wheel; 7. Support seat two; 8. Handle; 9. Protrusion; 10. Limiting rod; 11. Connecting rod; 12. Brake pad; 13. Ventilation opening; 14. Water and fertilizer tank; 1401. Box body; 1402. Support leg; 1403. Pipe opening; 1404. Switch. Detailed Implementation

[0033] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0034] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0035] To make the content of this invention easier to understand, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0036] like Figures 1 to 8 As shown, the technical solution of the present invention is: a mobile water and fertilizer vehicle with a compact overall structure and clearly defined functional modules, capable of efficiently completing the tasks of water and fertilizer transportation, preparation, and precise irrigation. The specific structural features of each component will be described in detail below.

[0037] The main frame of this invention is the vehicle body 1. In this embodiment, the vehicle body 1 is preferably made of a corrosion-resistant and waterproof material to ensure that it will not rust or deform during long-term use in harsh environments containing moisture, high salt, or fertilizer. A hinged door 3 is provided on one side of the vehicle body 1 to facilitate the operator's access to the internal water and fertilizer tank 14. Several ventilation openings 13 are provided on the outer side of the vehicle body 1 to maintain air circulation inside the vehicle body 1 during equipment operation or storage, preventing components from rusting or producing odors due to excessive humidity.

[0038] To enable flexible movement of the water and fertilizer truck, this invention includes a moving mechanism. This mechanism comprises two support seats 4 fixedly connected to both ends of the vehicle body 1. The support seats 4 are securely mounted to the bottom of the vehicle body 1 using bolts or other methods. A connecting shaft 5 is rotatably connected to the support seats 4, with both ends of the connecting shaft 5 passing through bearing seats of the support seats 4, allowing the connecting shaft 5 to rotate smoothly. Wheels 6 are fixedly connected to both ends of the connecting shaft 5. In this embodiment, the wheels 6 preferably adopt a swivel wheel structure. This design allows the vehicle body 1 to steer flexibly when pulled by the handle 8, and it is well-suited for greenhouse passageways with a row spacing of not less than 60cm and sloping terrain with a gradient of not more than 25°, significantly improving the equipment's terrain adaptability.

[0039] To ensure the stability of the water and fertilizer truck during operation, this invention features a unique traction and braking mechanism. This mechanism includes a support base 2 7 fixedly connected to the front end of the vehicle body 1. A front connecting shaft 5 penetrates and rotatably connects to the support base 2 7, and a wheel 6 is also fixedly connected to the connecting shaft 5 to enhance front-end support. A handle 8 is hinged to the front end of the support base 2 7, allowing the operator to control the truck's direction and speed by pulling or pushing the handle 8. A limiting rod 10 is hinged to the upper protrusion 9 of the support base 2 7, penetrating the handle 8 and engaging with it. When the limiting rod 10 is engaged, the handle 8 is locked at its current angle and cannot rotate downwards, thus maintaining the parking position. A connecting rod 11 penetrates and connects to the lower part of the handle 8, with brake pads 12 fixedly connected to both ends of the connecting rod 11. In a preferred embodiment of this invention, the handle 8 and the limiting rod 10 constitute a spring-locking mechanism. When the operator pulls the limit rod 10 upwards to disengage it from the handle 8, the handle 8 rotates downwards under the action of gravity or spring force. This, in turn, drives the brake pads 12 to open to both sides and clamp the wheel 6 through the connecting rod 11, achieving rapid parking and locking. This mechanically linked braking method has a simple structure, rapid response, and high reliability.

[0040] The water and fertilizer storage mechanism is one of the core supporting components of this invention. This mechanism includes at least one water and fertilizer tank 14 placed inside the vehicle body 1. To accommodate the diverse nutritional needs of different crops at different growth stages, the water and fertilizer storage mechanism of this invention preferably includes multiple, for example, four independently arranged water and fertilizer tanks 14. These water and fertilizer tanks 14 respectively store nitrogen, phosphorus, potassium, and trace element water-soluble fertilizers. Each water and fertilizer tank 14 is equipped with an independent switch 1404, preferably a solenoid valve or a manual ball valve, to achieve multi-channel independent fertilizer absorption. Specifically, each water and fertilizer tank 14 includes a tank body 1401, a support leg 1402 fixedly connected to the bottom of the tank body 1401, a pipe opening 1403 located on one side of the tank body 1401, and a switch 1404. The support leg 1402 is used to stably support the water and fertilizer tank 14 on the floor inside the vehicle body 1, preventing the tank body 1401 from shaking and tipping over during travel. The pipe opening 1403 is located on the lower side of the tank body 1401, facilitating pipe connection. Switch 1404 is installed at pipe opening 1403 and is used to control the output of fertilizer in the box.

[0041] The storage mechanism is complemented by a fertilizer preparation and irrigation mechanism. This mechanism includes a water pipe 2 connected to one side of the vehicle body 1. The water pipe 2 is divided into an inlet pipe and an outlet pipe, wherein the inlet pipe is used to replenish water into the fertilizer tank 14, and the outlet pipe is used to deliver the prepared fertilizer solution to the outside. The water pipe 2 is connected to the pipe opening 1403 of each fertilizer tank 14 through quick-connect couplings or other suitable connection methods to form a complete fertilizer flow loop.

[0042] To further improve the automation and precision of water and fertilizer preparation, this invention also integrates an intelligent fertilizer blending unit. This unit includes an EC sensor and a pH sensor installed on the water pipe 2. The EC sensor detects the conductivity of the fertilizer solution in real time, reflecting its concentration; the pH sensor detects the acidity or alkalinity of the fertilizer solution in real time. These two sensors are electrically connected to the control motherboard. The control motherboard is configured to automatically adjust the opening degree of the switch 1404 in the water and fertilizer tank 14 based on the fertilizer concentration and pH signals fed back from the sensors. For example, when the fertilizer concentration is detected to be too low, the control motherboard will instruct the corresponding switch 1404 to increase its opening degree to increase fertilizer absorption; conversely, it will decrease its opening degree, thereby precisely controlling the fertilizer concentration within the agronomically suitable range of 0.1%–0.8%. Furthermore, the intelligent fertilizer blending unit also integrates an IoT communication module, supporting remote control via the machine's touchscreen or a mobile terminal APP. The operator can pre-set parameters such as irrigation duration, cycle, and single application amount in the cab or on a remote server, and the equipment can then perform timed and quantitative irrigation operations according to the preset program, greatly improving management efficiency.

[0043] To prevent impurities such as silt and undissolved particles in the fertilizer solution from clogging downstream drip irrigation or micro-sprinkler systems, the fertilizer mixing and irrigation mechanism is equipped with a dual filtration system. This system uses a combination of a centrifugal filter and a mesh filter connected in series. The fertilizer solution first passes through the centrifugal filter to remove larger suspended solids and particles, and then passes through the mesh filter for fine filtration. This dual-safety mechanism effectively ensures unobstructed irrigation.

[0044] Considering that long-term application of high-concentration water-soluble fertilizers can easily lead to crystallization residues on the pipes and the inner wall of the fertilizer tank 14, which can then clog the pipe opening 1403 and the switch 1404, this invention also includes an automatic backwashing system inside the vehicle body 1. This control system automatically reverses the water pump after irrigation, causing the water flow to backwash the water pipe 2 and the fertilizer tank 14. The wastewater after washing can be discharged outside the vehicle through a dedicated drain outlet, effectively reducing fertilizer crystallization residues, extending equipment lifespan, and lowering maintenance costs.

[0045] To endow the water and fertilizer truck with "intelligence" for autonomous operation, this invention also includes an environmental monitoring unit. This unit includes a soil moisture sensor, which is electrically connected to the aforementioned intelligent fertilizer dispensing unit. The soil moisture sensor is pre-buried or placed at a specific depth in the greenhouse or field to monitor soil moisture content in real time. When the sensor detects that the soil moisture content is lower than a set agronomic threshold, it automatically sends a signal to the control board, triggering irrigation. During irrigation, the system continuously monitors changes in soil moisture. When the target moisture level is reached, it automatically sends a stop command to stop water and fertilizer supply, achieving true on-demand irrigation and avoiding waste of water and fertilizer resources.

[0046] Finally, regarding the selection of materials, to ensure the durability of the equipment, the entire vehicle body 1 is made of corrosion-resistant and waterproof material. More importantly, the inner wall of the water-fertilizer tank 14, 1401, is coated with an acid and alkali corrosion-resistant coating. This coating can effectively resist the long-term erosion of various acidic or alkaline water-soluble fertilizers, prevent the tank body 1401 from being corroded and perforated, and ensure the structural integrity of the water-fertilizer tank 14 and the reliability of long-term storage and application.

[0047] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A mobile water and fertilizer truck, characterized in that, include: The vehicle body (1) has a hinged door (3) on one side end face and several ventilation openings (13) on the outer end face of the vehicle body (1). The moving mechanism includes two support seats (4) fixedly connected to the two ends of the vehicle body (1), a connecting shaft (5) rotatably connected to the support seats (4), and wheels (6) fixedly connected to the two ends of the connecting shaft (5). The traction braking mechanism includes a support base two (7) fixedly connected to the lower front end of the vehicle body (1), a front connecting shaft (5) penetrating the support base two (7) and rotatably connected thereto, a handle (8) hinged to the front end of the support base two (7), and a limiting rod (10) hinged to the upper protrusion (9) of the support base two (7); the limiting rod (10) penetrates the handle (8) and is snapped to it, and a connecting rod (11) is penetrating and connected below the handle (8), and brake pads (12) are fixedly connected to both ends of the connecting rod (11); The water and fertilizer storage mechanism includes at least one water and fertilizer tank (14) placed inside the vehicle body (1). The water and fertilizer tank (14) includes a tank body (1401), a support leg (1402) fixedly connected to the bottom of the tank body (1401), a pipe opening (1403) provided on one side of the tank body (1401), and a switch (1404). The fertilizer irrigation mechanism includes a water pipe (2) connected to one side of the vehicle body (1). The water pipe (2) is divided into an inlet pipe and an outlet pipe, and is connected to the pipe opening (1403) of the water and fertilizer tank (14).

2. The mobile water and fertilizer truck according to claim 1, characterized in that: The water and fertilizer storage mechanism includes multiple independently set water and fertilizer tanks (14), which respectively store nitrogen, phosphorus, potassium and trace element water-soluble fertilizers, and each water and fertilizer tank (14) is equipped with an independent switch (1404) to realize multi-channel independent fertilizer absorption.

3. A mobile water and fertilizer truck according to claim 1, characterized in that: It also includes an intelligent fertilizer mixing unit, which includes an EC sensor and a pH sensor installed on the water pipe (2), and a control motherboard electrically connected to the sensor; the control motherboard is configured to automatically adjust the opening degree of the switch (1404) of the water and fertilizer tank (14) according to the fertilizer concentration and pH signal fed back by the sensor, so as to control the fertilizer concentration within the range of 0.1%–0.8%.

4. A mobile water and fertilizer truck according to claim 3, characterized in that: The intelligent fertilizer dispensing unit also integrates an Internet of Things (IoT) communication module, which supports remote control via the machine's touchscreen or a mobile terminal APP, and can perform timed and quantitative irrigation operations according to preset irrigation duration, cycle, and single application amount.

5. A mobile water and fertilizer truck according to claim 1, characterized in that: The wheels (6) in the traction braking mechanism adopt a universal wheel structure, which, together with the traction action of the handle (8), enables the vehicle body (1) to be adapted to greenhouses with a row spacing of not less than 60cm and slopes with a gradient of not more than 25°.

6. A mobile water and fertilizer truck according to claim 1, characterized in that: The fertilizer mixing and irrigation mechanism is also equipped with a dual filtration component, which uses a combination of a centrifugal filter and a mesh filter in series to prevent impurities in the fertilizer solution from clogging the subsequent drip irrigation or micro-spraying devices.

7. A mobile water and fertilizer truck according to claim 1, characterized in that: The vehicle body (1) is also equipped with an automatic backwashing system. After the irrigation operation is completed, the system can automatically control the water flow to backwash the water pipe (2) and the water and fertilizer tank (14) to reduce fertilizer crystal residue.

8. A mobile water and fertilizer truck according to claim 1, characterized in that: The handle (8) at the front end of the support base (7) and the limiting rod (10) form a spring locking mechanism. When the limiting rod (10) is fastened to the handle (8), the brake pad (12) is driven by the connecting rod (11) to clamp the wheel (6) and realize parking lock.

9. A mobile water and fertilizer truck according to claim 1, characterized in that: It also includes an environmental monitoring unit, which includes a soil moisture sensor that is electrically connected to the intelligent fertilizer application unit. When the soil moisture content is detected to be lower than a set threshold, the unit automatically triggers irrigation and automatically stops when the target humidity is reached.

10. A mobile water and fertilizer truck according to claim 1, characterized in that: The vehicle body (1) is made of corrosion-resistant and waterproof material, and the inner wall of the water and fertilizer tank (14) is coated with an acid and alkali corrosion resistant coating to adapt to the long-term storage and application of various acidic or alkaline water-soluble fertilizers.

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