Range-extended, all-electric, lightweight lotus root harvesting equipment

Abstract

This invention relates to a range-extended, all-electric, lightweight lotus root harvesting equipment. The technical solution is as follows: a buoyancy lifting chassis is composed of an electric drive walking module, a frame assembly, a buoyancy box, and a four-point linkage lifting mechanism; a low-pressure, high-flow-rate oscillating jet module, consisting of a jet module and a submersible pump suction module, is mounted on the buoyancy box to provide jet power for the entire machine; the diesel engine of the power generation module drives a generator to output three-phase AC power, which is then converted into DC power by a rectifier to charge the battery module; the battery module's power is converted by an inverter to power multiple submersible pumps, an underwater motor, a lifting platform, and a through-type stepper motor. The beneficial effects are: firstly, the oscillating floating jet mechanism improves harvesting efficiency; secondly, the diesel engine generates electricity to achieve energy storage and range extension, while the underwater motor's high-proportion reducer drives the rubber tracks; simultaneously, the electric drive enables multiple submersible pumps to work together, leveraging their high efficiency and head.

Description

Technical Field

[0001] This invention relates to the field of lotus root harvesting technology, and in particular to a range-extended, all-electric, lightweight lotus root harvesting equipment. Background Technology

[0002] Harvesting lotus roots takes place in extremely harsh conditions, especially in winter. Not only is the labor intensity immense, but the harvesting rate is low, the roots are severely damaged, and the marketable quality is poor. Therefore, lotus root farmers and major producing areas urgently hope for the emergence of integrated automated harvesting and processing equipment to replace manual labor and free farmers from this arduous physical work.

[0003] Currently, the mainstream mechanized lotus root harvesting methods are mainly divided into floating and self-propelled types. Floating lotus root harvesting machinery mainly comes in three forms: boat-type self-propelled harvesters, hand-held harvesters, and boat-type towed harvesters. Regardless of the method, they all use high-flow-rate water jetting, where a sewage pump / clean water pump propels a high-pressure jet to the bottom of the lotus pond, breaking up the silt attached to the lotus roots. The lotus roots then float to the surface, allowing for harvesting. Due to the significant reaction force of the jet, floating harvesters are difficult to position. While small floating harvesters can be manually supported, large floating lotus root harvesting equipment is difficult to straighten and position manually, making it impossible to operate normally. Self-propelled harvesters mainly use tracked locomotives, but they are generally heavy and pose a risk of sinking in extremely soft lotus pond environments, especially if they bottom out. Regardless of the equipment's torque, it will become completely stuck in the lotus mud and will not be able to escape.

[0004] Jet spraying, a primary method for harvesting lotus roots, is a submerged jet method. The jet, flowing in water, experiences resistance proportional to the square of its velocity, resulting in significant velocity attenuation. To improve harvesting efficiency, four key aspects are crucial: 1) high jet velocity and flow rate (a low-pressure, high-flow jet); 2) a suitable jet angle to effectively utilize jet energy; 3) a proper jet oscillation method to ensure uniform jet flow; and 4) minimizing jet distance to effectively reduce velocity attenuation. However, the short jet distance means the nozzle may encounter muddy surfaces, lotus roots, and obstacles such as bricks and stones. Therefore, the nozzle needs to be floating, allowing it to retract effectively to avoid obstacles and prevent damage.

[0005] This invention application belongs to the key patent family of invention patents for lotus root harvesting operations. Our team currently holds over ten authorized Chinese invention patents, which are closely related to achieve efficient lotus root harvesting operations. This invention is related to Chinese patents ZL202310662987.2 "A Wide-Wide Tracked Buoyancy Box Ballast Linkage Lifting Lotus Root Harvesting Equipment", ZL202080012278.4 "A Fully Hydraulic Chain Reversing Remote Control Lotus Root Hydraulic Harvesting Equipment", ZL202011071488.9 "A Chain Reversing Hydraulic Jet Mechanism for Lotus Root Harvesting Equipment", ZL201811337592.0 "An Automatic Cleaning Device for Pump Suction", ZL202210126864.2 "Lotus Root Harvesting Device", and ZL202110499818.2. The invention patent family, including "A biomimetic nozzle structure design method based on surface optimization", is closely related and together completes the industrialization of lotus root harvesting equipment. Among them, the non-patent protection points of ZL202310662987.2 "A wide tracked buoyancy box ballast linkage lifting lotus root harvesting equipment" are consistent. Summary of the Invention

[0006] The purpose of this invention is to address the aforementioned deficiencies in the existing technology by providing a range-extended, all-electric, lightweight lotus root harvesting equipment. On one hand, this invention improves the harvesting effect through a swingable floating jet mechanism; on the other hand, it achieves energy storage and range extension through diesel engine power generation, and drives rubber tracks through a large-proportion underwater motor reducer; simultaneously, electric drive enables multiple submersible pumps to work together, leveraging the advantages of high efficiency and high head of the submersible pumps.

[0007] This invention relates to a range-extended, all-electric, lightweight lotus root harvesting equipment. The technical solution includes an electric drive module 1, a frame assembly 2, a buoyancy box 3, and a four-point linkage lifting mechanism 4. The electric drive module 1, frame assembly 2, buoyancy box 3, and four-point linkage lifting mechanism 4 form a buoyancy lifting chassis. The equipment also includes a jet module 5, a submersible pump suction module 6, a power generation module 7, an energy storage module 8, and a control module 9. The jet module 5 and submersible pump suction module 6 form a low-pressure, high-flow-rate oscillating jet module. The buoyancy tank 3 provides a jet for the whole machine; the power generation module 7, energy storage module 8 and control module 9 form a DC bus-based power control system. The diesel engine 7.1 of the power generation module 7 drives the generator 7.2 to generate three-phase AC power. The AC-DC rectifier converts the AC power into DC power to charge the battery module 8.2. The power of the battery module 8.2 is converted by the inverter DC-AC to power multiple submersible pumps 6.1, underwater motors 1.2, elevators 4.2 and through-type stepper motors 5.10.

[0008] Preferably, the aforementioned jet module 5 includes a floating jet mechanism, a swing frame 5.4, an upper roller, a lower roller 5.9, a jet frame 5.14, a rolling guide rail 5.15, a swing stepper / servo motor 5.16, a three-star cam 5.17, a power pin 5.18, a motor base 5.19, and a support 5.20.

[0009] The swing frame 5.4, upper roller, lower roller 5.9, jet frame 5.14, rolling guide rail 5.15, swing stepper / servo motor 5.16, three-star cam 5.17, power pin 5.18, and motor base 5.19 constitute the swing jet mechanism. The jet frame 5.14 is a welded steel structure, installed on the rectangular outer frame 2.1 of the mounting frame 2. The rolling guide rail 5.15 is bolted to the upper and lower sides of the jet frame 5.14, providing a V-shaped rolling channel for the upper roller and lower roller 5.9. The swing stepper / servo motor 5.16, three-star cam 5.17, power pin 5.18, and motor base 5.19 constitute the power mechanism of the swing jet mechanism, driving the swing frame 5.4 to swing left and right on the rolling pair formed by the upper roller, lower roller 5.9, and rolling guide rail 5.15.

[0010] Preferably, the aforementioned swing stepper / servo motor 5.16 is located on the upper part of the motor base 5.19. The output end of the swing stepper / servo motor 5.16 is connected to the three-star cam 5.17. The power pin 5.18 is connected to the lower part of the swing frame 5.4 through the support 5.20, forming a sliding pair with the three-star cam 5.17 to realize left and right swing. The rotation of the stepper / servo motor 5.16 drives the three-star cam 5.17 to rotate, and the three-star cam 5.17 drives the power pin 5.18 to swing left and right, thereby driving the swing frame 5.4 to swing left and right on the upper and lower rolling guide rails 5.15.

[0011] Preferably, the above-mentioned floating jet mechanism includes a jet main pipe 5.2, a floating spring 5.3, a swing frame guide 5.5, an upper guide connection 5.6, a lower guide connection 5.7, a through-type stepper motor 5.10, a lead screw nut 5.11, an upper support plate 5.12, and a lower support plate 5.13.

[0012] The lifting frame consists of a swing frame guide 5.5, an upper support plate 5.12, and a lower support plate 5.13. The upper support plate 5.12 is fixed, and the lower support plate 5.13 slides up and down along the swing frame guide 5.5. A through-type stepper motor 5.10 is connected above the upper support plate 5.12, and a lead screw nut 5.11 is connected to the lower support plate 5.13. The lifting and lowering of the through-type stepper motor 5.10 is achieved by the lead screw nut 5.11 driving the lower support plate 5.13 to slide up and down along the swing frame guide 5.5; the jet main pipe 5.2 is... Installed outside the quick-connect fitting 5.2.1, the floating spring 5.3 is installed between the spring adjusting nut 5.2.4 and the lower support plate 5.13 of the jet main pipe 5.2. The threaded connecting pipe 5.2.2 is fixed with double nuts. The jet main pipe 5.2 jets, and the elastic force of the floating spring 5.3, the gravity of the jet main pipe 5.2 and the lower support plate 5.13 are balanced with the jet reaction force of the jet main pipe 5.2. If the jet nozzle 5.2.6 of the jet main pipe 5.2 encounters an obstacle and retracts, the floating spring 5.3 is further compressed to avoid the obstacle.

[0013] Preferably, the guide upper connection 5.6 is installed on the swing frame 5.4, connecting the swing frame 5.4 and the swing frame guide 5.5, and providing support for the swing frame guide 5.5; the guide lower connection 5.7 is installed on the swing frame 5.4, connecting the swing frame 5.4 and the swing frame guide 5.5, and providing support for the swing frame guide 5.5.

[0014] The upper roller is mounted above the swing frame 5.4 and rolls on the rolling guide rail 5.15, serving as the motion actuator for the swing frame 5.4; the lower roller 5.9 is mounted below the swing frame 5.4 and rolls on the rolling guide rail 5.15, also serving as the motion actuator for the swing frame 5.4.

[0015] Preferably, the aforementioned jet main pipe 5.2 is the main jet actuator, installed between the upper support plate 5.12 and the lower support plate 5.13, and mainly consists of a quick-connect coupling 5.2.1, a threaded connecting pipe 5.2.2, an upper jet pipe 5.2.3, a spring adjusting nut 5.2.4, a lower jet pipe 5.2.5, and a jet nozzle 5.2.6; the quick-connect coupling 5.2.1 is used to connect the jet hose 5.1 and the jet main pipe 5.2; the lower end of the quick-connect coupling 5.2.1 is connected to the upper jet pipe 5.2.3 through the threaded connecting pipe 5.2.2, and the upper jet pipe 5.2.3 is installed on the upper support plate 5.12. Between the upper and lower support plates 5.13; the spring adjusting nut 5.2.4 is installed on the lower thread of the upper jet pipe 5.2.3 to adjust the output pressure of the floating spring 5.3; the lower jet pipe 5.2.5 is the lower connecting pipe of the main jet pipe 5.2, connecting the upper jet pipe 5.2.3 and the jet nozzle 5.2.6; the jet nozzle 5.2.6 is connected to the lower end of the lower jet pipe 5.2.5; the floating spring 5.3 is installed outside the quick-connect joint 5.2.1, with both ends connected to the spring adjusting nut 5.2.4 and the lower support plate 5.13, supporting the weight of the lower support plate 5.13 and providing a floating connection for the main jet pipe 5.2.

[0016] Preferably, the submersible pump suction module 6 includes a submersible pump 6.1, a pump support frame 6.2, a guide rod 6.3, a guide sleeve 6.4, a lifting frame 6.5, a buoyancy frame 6.6, a buoyancy block 6.7, a buoyancy frame lift 6.8, a flexible rope 6.9, a submersible pump manifold 6.10, a submersible pump pipeline 6.11, a mesh cover 6.12, a check valve, a water storage tank 6.14, a drain valve 6.15, and a lifting guide pair 6.16. One or more submersible pumps 6.1 are installed in the pump support frame 6.2. A mesh cover 6.12 is installed at the inlet end of each submersible pump 6.1. The outlet end of the submersible pump 6.1 is collected through the submersible pump manifold 6.10 and connected to the water storage tank 6.14 through the check valve and the submersible pump pipeline 6.11.

[0017] The pump support frame 6.2 is a welded frame, and the rear side of the pump support frame 6.2 is connected to the lifting guide pair 6.16; the guide rod 6.3 is connected to the rear of the buoyancy box flat main beam 3.2.1, and together with the guide sleeve 6.4, forms a sliding pair to support the lifting of the pump support frame 6.2 and the buoyancy frame 6.6; the guide sleeve 6.4 connects the pump support frame 6.2 and the buoyancy frame 6.6, and slides on the guide rod 6.3;

[0018] The lifting frame 6.5 is a welded frame, with its two legs connected to the main beam 3.2.1 of the buoyancy box, and a buoyancy frame lifting mechanism 6.8 installed in the middle. The buoyancy frame 6.6 is a welded frame, with buoyancy blocks 6.7 installed inside, guide sleeves 6.4 connected to both sides, and a lifting guide pair 6.16 connected to the rear. The buoyancy blocks 6.7 are rigid foam blocks installed inside the buoyancy frame 6.6 to provide buoyancy for the pump support frame 6.2. The buoyancy frame lifting mechanism 6.8 is installed on the lifting frame 6.5 and the buoyancy frame 6.6, providing lifting power for the buoyancy frame 6.6. The flexible rope 6.9 is a non-metallic flexible rope that connects the pump support frame 6.2 and the buoyancy frame 6.6, providing the medium for transmitting lifting power between the buoyancy frame lifting mechanism 6.8 and the pump support frame 6.2. The submersible pump manifold 6.10 connects to the outlet of the submersible pump 6.1, collecting the water discharged from the submersible pump 6.1, and the other end connects to the submersible pump. The submersible pump pipeline 6.11 serves as the intermediate connection channel between the submersible pump 6.1 and the water storage tank 6.14. One end connects to the submersible pump manifold 6.10, and the other end connects to the water storage tank 6.14 via a one-way valve. The mesh cover 6.12, fixed to the outside of the submersible pump 6.1 inlet, is a mesh structure that provides protection for the submersible pump 6.1 and isolates large-sized debris. The one-way valve connects the submersible pump 6.1 and the submersible pump manifold 6.10, allowing only the working water of the submersible pump 6.1 to flow in the forward direction. The water storage tank 6.14 is a barrel-shaped welded structure, installed on the sealed housing 3.1, and serves as a water storage device for the jet working water. The drain valve 6.15 is installed at the bottom of the water storage tank 6.14 to release the jet working water from the water storage tank 6.14. The lifting guide pair 6.16 is installed on the rear main beam of the housing beam 3.2 and serves as a guide mechanism for the pump support frame 6.2 and the buoyancy frame 6.6.

[0019] Preferably, the electric drive walking module 1 includes a wide track 1.1, an underwater motor 1.2, a reducer 1.3 and an end crossbeam 1.4. The underwater motor 1.2 is connected to the drive wheel of the wide track 1.1 through the reducer 1.3, and the main drive wheel drives the wide track 1.1 to move forward and backward.

[0020] Preferably, the aforementioned power generation module 7 includes a diesel engine 7.1, a generator 7.2, a power generation control box 7.3, and a power generation module skid, and is a skid-mounted module that provides power to the entire machine; the generator 7.2 is mounted on the power generation module skid and connected to the diesel engine 7.1 to provide AC power to the entire machine; the power generation control box 7.3 is mounted on the power generation module skid, controls the operation of the power generation module 7, and receives control signals from the control module 9; the power generation module skid is a welded frame, mounted on the main mounting beam 3.3 of the buoyancy box 3, and the diesel engine 7.1 and the generator 7.2 are mounted on the power generation module skid.

[0021] Preferably, the energy storage module 8 includes a high-voltage box 8.1 and a battery module 8.2. The high-voltage box 8.1 is a welded box structure, and the battery module 8.2 is a modular energy storage battery module installed inside the high-voltage box 8.1.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] This invention generates electricity via a diesel engine, reducing the ground pressure of the tracks and making it suitable for operation in muddy lotus ponds. The upper working module is raised and lowered via a four-point linkage lifting device to adapt to different water depths. Furthermore, if the lotus harvesting equipment becomes stuck in the mud, the buoyancy box can be raised to free it. Simultaneously, electric drive enables multiple submersible pumps to work together, leveraging their high efficiency and head. Additionally, this invention uses a low-pressure, high-flow-rate jet module composed of a jet module and a submersible pump suction module, enabling oscillating jets for improved harvesting efficiency. Moreover, when the jet nozzle of the main jet pipe encounters an obstacle, it retracts, and the floating spring further compresses to avoid it. The balance between the floating spring force, the weight of the main jet pipe and lower support plate, and the jet reaction force of the main jet pipe plays a crucial role in preventing obstacles, resulting in better adaptability and improved harvesting efficiency. Attached Figure Description

[0024] Figure 1 This is a front view of the overall structure of the present invention;

[0025] Figure 2 This is a top view of the overall structure of the present invention;

[0026] Figure 3 This is a side view of the overall structure of the present invention;

[0027] Figure 4 This is a bottom view of the overall structure of the present invention;

[0028] Figure 5 This is a top view of the overall structure of the present invention (AA section view, partially hidden);

[0029] Figure 6 Main view and sectional view of the buoyancy box structure (CC section);

[0030] Figure 7 This is a side view of the buoyancy box structure of the present invention (BB section, with the rubber track partially hidden).

[0031] Figure 8 This is a detailed rear view (EE section) of the overall structure of the present invention.

[0032] Figure 9 This is a detailed rear view of the overall structure of the present invention (with the rubber track partially hidden).

[0033] Figure 10 This is a top view of the overall structure of the present invention (DD sectional view - showing the guide structure of the water absorption module).

[0034] Figure 11 This is a front view of the jet module of the present invention;

[0035] Figure 12 This is a rear view of the jet module of the present invention;

[0036] Figure 13 This is a side view of the jet module of the present invention;

[0037] Figure 14 This is a schematic diagram of the jet main pipe;

[0038] Figure 15 This is a schematic diagram of the all-electric power module of the present invention.

[0039] In the diagram above: 1. Electric drive walking module; 2. Set frame; 3. Buoyancy box; 4. Four-point linkage lifting mechanism; 5. Jet module; 6. Submersible pump water suction module; 7. Power generation module; 8. Energy storage module; 9. Control module.

[0040] 1.1 Wide track; 1.2 Underwater motor; 1.3 Reducer; 1.4 End crossbeam; 2.1 Rectangular outer frame; 2.2 Lower support beam; 2.3 Lower support beam guide; 3.1 Sealed housing; 3.2 Housing beam structure; 3.3 Mounting main beam; 3.4 Guide support column; 3.2.1 Horizontal main beam; 3.2.2 Side main beam; 3.2.3 Bottom main beam; 4.2.4 Power unit; 4.1 Lifting machine; 4.2 Transmission rod; 4.3 Lower connecting plate; 4.4 Coupling; 4.5 Upper connecting plate; 4.6 Chain and sprocket; 4.7 4.8 Sprocket seat; 5.1 Jet hose, 5.2 Jet main tube, 5.3 Floating spring, 5.4 Swing frame, 5.5 Swing frame guide, 5.6 Upper guide connection, 5.7 Lower guide connection, 5.9 Lower roller, 5.10 Through-type stepper motor, 5.11 Lead screw nut, 5.12 Upper support plate, 5.13 Lower support plate, 5.14 Jet frame, 5.15 Rolling guide rail, 5.16 Swing stepper / servo motor, 5.17 Three-star cam, 5.18 Power pin, 5.19 Motor base and 5.20 Support;

[0041] Quick-connect coupling 5.2.1, threaded connecting pipe 5.2.2, jet upper pipe 5.2.3, spring adjusting nut 5.2.4, jet lower pipe 5.2.5, jet nozzle 5.2.6;

[0042] 6.1 Submersible pump, 6.2 Pump support bracket, 6.3 Guide rod, 6.4 Guide frame, 6.5 Lifting frame, 6.6 Lifting frame connecting pin, 6.7 Connecting spring, 6.8 Winch, 6.9 Flexible rope, 6.10 Submersible pump manifold, 6.11 Submersible pump pipeline, 6.12 Net cover, 6.14 Water storage tank, 6.15 Drain valve; 7.1 Diesel engine, 7.2 Generator, 7.3 Generator control box, 8.1 High voltage box, 8.2 Battery module. Detailed Implementation

[0043] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0044] Example 1, referring to Figures 1-15 The present invention discloses a range-extended, all-electric, lightweight lotus root harvesting equipment, comprising an electric drive module 1, a frame assembly 2, a buoyancy box 3, and a four-point linkage lifting mechanism 4. The electric drive module 1, frame assembly 2, buoyancy box 3, and four-point linkage lifting mechanism 4 form a buoyancy lifting chassis. The equipment also includes a jet module 5, a submersible pump suction module 6, a power generation module 7, an energy storage module 8, and a control module 9. The jet module 5 and the submersible pump suction module 6 form a low-pressure, high-flow-rate oscillating jet module, which is installed on the buoyancy box. The housing 3 provides a jet stream for the entire machine; the power generation module 7, energy storage module 8, and control module 9 form a DC bus-based power control system. The diesel engine 7.1 of the power generation module 7 drives the generator 7.2 to generate three-phase AC power. The AC-DC rectifier converts the AC power into DC power to charge the battery module 8.2. The electrical energy of the battery module 8.2 is converted by the DC-AC inverter to power multiple submersible pumps 6.1, underwater motors 1.2, elevators 4.2, and through-type stepper motors 5.10.

[0045] Reference Figure 5 The electric drive walking module 1 mentioned in this invention includes a wide track 1.1, an underwater motor 1.2, a reducer 1.3, and an end beam 1.4. The underwater motor 1.2 is connected to the drive wheel of the wide track 1.1 through the reducer 1.3, and the main drive wheel drives the wide track 1.1 to move forward and backward. Preferably, the reducer 1.3 is a right-angle planetary reducer.

[0046] Preferably, the wide track 1.1 is made of wide rubber track, which increases the contact area with the ground and reduces the weight;

[0047] The underwater motor 1.2 is mounted on the drive wheel of the wide track 1.1 via a reducer 1.3; preferably, the underwater motor 1.2 is a brushless servo motor or a hysteresis motor.

[0048] The reducer 1.3 is connected to the drive wheel of the wide track 1.1; preferably, the reducer 1.3 is a right-angle planetary reducer;

[0049] The end crossbeam 1.4 is fixedly installed on the traveling frame on the crossbeam of the wide track 1.1, and its upper part is connected to the mounting frame 2, including the rectangular outer frame 2.1;

[0050] Reference Figure 5 and Figure 6 The frame 2 consists of a rectangular outer frame 2.1, a lower support beam 2.2, and a lower support beam guide 2.3. The upper end of the lower support beam 2.2 is connected to the rectangular outer frame 2.1, and the lower end is connected to the crossbeam 1.4 via bolts / welds. The lower support beam guide 2.3 is connected to the lower support beam 2.2.

[0051] The rectangular outer frame 2.1 is a welded frame structure that bears the weight of the upper working module;

[0052] The lower support beam guide 2.3 is installed on the lower support beam 2.2. Preferably, the lower support beam guide 2.3 has a T-beam cross-section.

[0053] The rectangular outer frame 2.1 is connected to the end crossbeam 1.4 via the lower support beam 2.2, transferring the load to the traveling frame of the wide track 1.1.

[0054] Reference Figure 5 The buoyancy box 3 mentioned in this invention consists of a sealed box 3.1, a box beam structure 3.2, a main mounting beam 3.3, and a guide support 3.4, which supports the upper working module and is partially or even completely submerged in the water during lotus pond operations, thus providing buoyancy.

[0055] The sealed box 3.1 is a sealed box structure, installed outside the box beam 3.2, forming the main structure of the buoyancy box 3;

[0056] The sealed enclosure 3.1 is preferably a welded structure, installed outside the enclosure beam 3.2, and partially integrally formed. It is preferably sealed with sheet metal, and non-metallic materials are within the selection range.

[0057] The box beam structure 3.2 is the supporting structure of the buoyancy box 3. It is a frame structure, consisting of the horizontal main beam 3.2.1, the horizontal main beam 3.2.2, the side main beam 3.2.3 and the bottom main beam 3.2.4, forming a rectangular spatial structure frame.

[0058] The transverse main beam 3.2.2 connects to the main beam 3.3; the side main beam 3.2.3 connects to the guide support 3.4; the bottom main beam 3.2.4 connects to the side main beam 3.2.3 to enhance the strength of the side main beam 3.2.3.

[0059] Preferably, the upper connecting plate 4.6 of the box beam structure 3.2 corresponds to the four-point linkage lifting mechanism 4, and the connecting plate 4.6 is installed on the horizontal main beam 3.2.1 of the box beam structure 3.2;

[0060] The main installation beam 3.3 is designed according to the installation requirements of the upper working components and is used to install the upper working components. It preferably adopts an integral structure and is installed on the horizontal main beam 3.2.2.

[0061] Preferably, the guide pillar 3.4 has an open rectangular cross-section, which cooperates with the T-shaped beam structure of the lower support beam guide 2.3. The lower support beam 2.2 moves up and down along the guide pillar 3.4 to ensure the strength of the lower support beam 2.2 and prevent it from bending due to the complex working conditions of the double wide track 1.1.

[0062] Reference Figure 5 The four-point linkage lifting mechanism 4 mentioned in this invention consists of a power machine 4.1, a lifting machine 4.2, a transmission rod 4.3, a lower connecting plate 4.4, a coupling 4.5, an upper connecting plate 4.6, a chain and sprocket 4.7, and a sprocket seat 4.8;

[0063] The power unit 4.1 is directly connected to the power input shaft of the elevator 4.2, preferably a hydraulic motor or an electric power unit;

[0064] Preferably, the lifting machine 4.2 is a worm gear jack or screw jack with a large reduction ratio, which provides lifting power for the buoyancy box 3;

[0065] The transmission rod 4.3 connects the input shaft of the two lifting machines 4.2 / the second output shaft. Preferably, it is a hollow rod with both ends corresponding to the input shaft of the lifting machine 4.2 / the second output shaft and the corresponding key to transmit torque.

[0066] Preferably, multiple transmission rods 4.3 are provided, and four rods are provided for the four-point linkage lifting mechanism 4;

[0067] The lower connecting plate 4.4 is installed on the horizontal main beam 3.2.2 at the bottom and connected to the bracket 4.5 at the top.

[0068] The upper connecting plate 4.6 is connected to the elevator 4.2. Preferably, the upper part of the upper connecting plate 4.6 is equipped with a wing brace to enhance its strength.

[0069] The chain sprocket 4.7 and sprocket seat 4.8 form a traditional chain structure, wherein the sprocket shaft of the chain sprocket 4.7 is connected to the transmission rod 4.3 to realize the transmission of the two transmission rods 4.3;

[0070] The power unit 4.1 is directly connected to the lifting machine 4.2, and is connected to the second lifting machine through the transmission rod 4.3. The second lifting machine is connected to the second transmission rod, and the second transmission rod is connected to the sprocket shaft 4.10 through the coupling 4.5. The sprocket shaft 4.9 drives the chain 4.7 to rotate through the sprocket 4.8, which drives the transmission rod 4.3 on the other side to rotate, and then drives the two lifting machines on the other side to rotate.

[0071] Preferably, the two side lifting platforms 4.2, transmission rod 4.3, lower connecting plate 4.4, bracket 4.5, upper connecting plate 4.6, chain 4.7, sprocket 4.8, sprocket shaft 4.9, coupling 1.10 and sprocket seat 4.11 are symmetrically distributed;

[0072] The lower part of the elevator 4.2 is connected to the lower connecting plate 4.4, which is mounted on the rectangular outer frame 2.1. The upper part of the elevator 4.2 is connected to the bracket 4.5, which is connected to the upper connecting plate 4.6. The upper connecting plate 4.6 is connected to the sealed box 3.1. The elevator 4.2 connects the buoyancy box 3 and the set frame 2 by realizing the lower connecting plate 4.4, the bracket 4.5 and the upper connecting plate 4.6.

[0073] Four lifting machines are installed as described in section 4.2. The preferred type is the worm gear lifting machine, but other lifting structures such as lead screws that perform the same function are also within the selection range.

[0074] The power unit 4.1 rotates in the forward / direction direction to drive the lifting machine 4.2 to lift. It drives the second lifting machine through the transmission rod 4.3. The second lifting machine drives the two lifting machines on the other side to lift through the chain sprocket 4.7, sprocket 4.8 and coupling 4.5, so that the four lifting machines 4.2 can lift synchronously.

[0075] Preferably, the four lifting platforms 4.2 lift synchronously, and the buoyancy box 3 lifts synchronously relative to the set frame 2 through the lower connecting plate 4.4, the bracket 4.5 and the upper connecting plate 4.6.

[0076] Reference Figures 11-13 The jet module 5 mentioned in this invention includes a floating jet mechanism, a swing frame 5.4, an upper roller, a lower roller 5.9, a jet frame 5.14, a rolling guide rail 5.15, a swing stepper / servo motor 5.16, a three-star cam 5.17, a power pin 5.18, a motor base 5.19, and a support 5.20.

[0077] The swing frame 5.4, upper roller, lower roller 5.9, jet frame 5.14, rolling guide rail 5.15, swing stepper / servo motor 5.16, three-star cam 5.17, power pin 5.18, and motor base 5.19 constitute the swing jet mechanism. The jet frame 5.14 is a welded steel structure, installed on the rectangular outer frame 2.1 of the mounting frame 2. The rolling guide rail 5.15 is bolted to the upper and lower sides of the jet frame 5.14, providing a V-shaped rolling channel for the upper roller and lower roller 5.9. The swing stepper / servo motor 5.16, three-star cam 5.17, power pin 5.18, and motor base 5.19 constitute the power mechanism of the swing jet mechanism, driving the swing frame 5.4 to swing left and right on the rolling pair formed by the upper roller, lower roller 5.9, and rolling guide rail 5.15.

[0078] Preferably, the aforementioned swing stepper / servo motor 5.16 is located on the upper part of the motor base 5.19. The output end of the swing stepper / servo motor 5.16 is connected to the three-star cam 5.17. The power pin 5.18 is connected to the lower part of the swing frame 5.4 through the support 5.20, forming a sliding pair with the three-star cam 5.17 to realize left and right swing. The rotation of the stepper / servo motor 5.16 drives the three-star cam 5.17 to rotate, and the three-star cam 5.17 drives the power pin 5.18 to swing left and right, thereby driving the swing frame 5.4 to swing left and right on the upper and lower rolling guide rails 5.15.

[0079] Preferably, the above-mentioned floating jet mechanism includes a jet main pipe 5.2, a floating spring 5.3, a swing frame guide 5.5, an upper guide connection 5.6, a lower guide connection 5.7, a through-type stepper motor 5.10, a lead screw nut 5.11, an upper support plate 5.12, and a lower support plate 5.13.

[0080] The lifting frame consists of a swing frame guide 5.5, an upper support plate 5.12, and a lower support plate 5.13. The upper support plate 5.12 is fixed, and the lower support plate 5.13 slides up and down along the swing frame guide 5.5. A through-type stepper motor 5.10 is connected above the upper support plate 5.12, and a lead screw nut 5.11 is connected to the lower support plate 5.13. The lifting and lowering of the through-type stepper motor 5.10 is achieved by the lead screw nut 5.11 driving the lower support plate 5.13 to slide up and down along the swing frame guide 5.5; the jet main pipe 5.2 is... Installed outside the quick-connect fitting 5.2.1, the floating spring 5.3 is installed between the spring adjusting nut 5.2.4 and the lower support plate 5.13 of the jet main pipe 5.2. The threaded connecting pipe 5.2.2 is fixed with double nuts. The jet main pipe 5.2 jets, and the elastic force of the floating spring 5.3, the gravity of the jet main pipe 5.2 and the lower support plate 5.13 are balanced with the jet reaction force of the jet main pipe 5.2. If the jet nozzle 5.2.6 of the jet main pipe 5.2 encounters an obstacle and retracts, the floating spring 5.3 is further compressed to avoid the obstacle.

[0081] Preferably, the guide upper connection 5.6 is installed on the swing frame 5.4, connecting the swing frame 5.4 and the swing frame guide 5.5, and providing support for the swing frame guide 5.5; the guide lower connection 5.7 is installed on the swing frame 5.4, connecting the swing frame 5.4 and the swing frame guide 5.5, and providing support for the swing frame guide 5.5.

[0082] The upper roller is mounted above the swing frame 5.4 and rolls on the rolling guide rail 5.15, serving as the motion actuator for the swing frame 5.4; the lower roller 5.9 is mounted below the swing frame 5.4 and rolls on the rolling guide rail 5.15, also serving as the motion actuator for the swing frame 5.4.

[0083] Reference Figure 14 The jet main pipe 5.2 mentioned in this invention is the main jet actuator, installed between the upper support plate 5.12 and the lower support plate 5.13. It mainly consists of a quick-connect coupling 5.2.1, a threaded connecting pipe 5.2.2, an upper jet pipe 5.2.3, a spring adjusting nut 5.2.4, a lower jet pipe 5.2.5, and a jet nozzle 5.2.6. The quick-connect coupling 5.2.1 is used to connect the jet hose 5.1 and the jet main pipe 5.2. The lower end of the quick-connect coupling 5.2.1 is connected to the upper jet pipe 5.2.3 via the threaded connecting pipe 5.2.2, and the upper jet pipe 5.2.3 is installed on the upper support plate 5.12. Between the upper and lower support plates 5.13; the spring adjusting nut 5.2.4 is installed on the lower thread of the upper jet pipe 5.2.3 to adjust the output pressure of the floating spring 5.3; the lower jet pipe 5.2.5 is the lower connecting pipe of the main jet pipe 5.2, connecting the upper jet pipe 5.2.3 and the jet nozzle 5.2.6; the jet nozzle 5.2.6 is connected to the lower end of the lower jet pipe 5.2.5; the floating spring 5.3 is installed outside the quick-connect joint 5.2.1, with both ends connected to the spring adjusting nut 5.2.4 and the lower support plate 5.13, supporting the weight of the lower support plate 5.13 and providing a floating connection for the main jet pipe 5.2.

[0084] Reference Figure 7 , Figure 9 and Figure 10 The submersible pump suction module 6 mentioned in this invention includes a submersible pump 6.1, a pump support frame 6.2, a guide rod 6.3, a guide sleeve 6.4, a lifting frame 6.5, a buoyancy frame 6.6, a buoyancy block 6.7, a buoyancy frame lift 6.8, a flexible rope 6.9, a submersible pump manifold 6.10, a submersible pump pipeline 6.11, a mesh cover 6.12, a check valve, a water storage tank 6.14, a drain valve 6.15, and a lifting guide pair 6.16. One or more submersible pumps 6.1 are installed in the pump support frame 6.2. A mesh cover 6.12 is installed at the inlet end of each submersible pump 6.1. The outlet end of the submersible pump 6.1 is collected through the submersible pump manifold 6.10 and connected to the water storage tank 6.14 through the check valve and the submersible pump pipeline 6.11.

[0085] The pump support frame 6.2 is a welded frame, and the rear side of the pump support frame 6.2 is connected to the lifting guide pair 6.16; the guide rod 6.3 is connected to the rear of the buoyancy box flat main beam 3.2.1, and together with the guide sleeve 6.4, forms a sliding pair to support the lifting of the pump support frame 6.2 and the buoyancy frame 6.6; the guide sleeve 6.4 connects the pump support frame 6.2 and the buoyancy frame 6.6, and slides on the guide rod 6.3;

[0086] The lifting frame 6.5 is a welded frame, with its two legs connected to the main beam 3.2.1 of the buoyancy box, and a buoyancy frame lifting mechanism 6.8 installed in the middle. The buoyancy frame 6.6 is a welded frame, with buoyancy blocks 6.7 installed inside, guide sleeves 6.4 connected to both sides, and a lifting guide pair 6.16 connected to the rear. The buoyancy blocks 6.7 are rigid foam blocks installed inside the buoyancy frame 6.6 to provide buoyancy for the pump support frame 6.2. The buoyancy frame lifting mechanism 6.8 is installed on the lifting frame 6.5 and the buoyancy frame 6.6, providing lifting power for the buoyancy frame 6.6. The flexible rope 6.9 is a non-metallic flexible rope that connects the pump support frame 6.2 and the buoyancy frame 6.6, providing the medium for transmitting lifting power between the buoyancy frame lifting mechanism 6.8 and the pump support frame 6.2. The submersible pump manifold 6.10 connects to the outlet of the submersible pump 6.1, collecting the water discharged from the submersible pump 6.1, and the other end connects to the submersible pump. The submersible pump pipeline 6.11 serves as the intermediate connection channel between the submersible pump 6.1 and the water storage tank 6.14. One end connects to the submersible pump manifold 6.10, and the other end connects to the water storage tank 6.14 via a one-way valve. The mesh cover 6.12, fixed to the outside of the submersible pump 6.1 inlet, is a mesh structure that provides protection for the submersible pump 6.1 and isolates large-sized debris. The one-way valve connects the submersible pump 6.1 and the submersible pump manifold 6.10, allowing only the working water of the submersible pump 6.1 to flow in the forward direction. The water storage tank 6.14 is a barrel-shaped welded structure, installed on the sealed housing 3.1, and serves as a water storage device for the jet working water. The drain valve 6.15 is installed at the bottom of the water storage tank 6.14 to release the jet working water from the water storage tank 6.14. The lifting guide pair 6.16 is installed on the rear main beam of the housing beam 3.2 and serves as a guide mechanism for the pump support frame 6.2 and the buoyancy frame 6.6.

[0087] Working process of submersible pump suction module 6: Submersible pump 6.1 draws water through mesh cover 6.12, and after being collected through submersible pump manifold 6.10, it flows into water storage tank 6.14 through check valve and submersible pump pipeline 6.11, and then flows into jet main pipe 5.2 through jet hose 5.1. The submersible pump 6.1 is mounted on the guide rod 6.3 of the pump support 6.2. The pump support 6.2 is connected to the lifting frame 6.5 via the lifting frame connecting pin 6.6, allowing the pump support 6.2 to rotate relative to the lifting frame 6.5. The lifting frame 6.5 and the guide frame 6.4 form a sliding pair. The winch 6.8 rotates, driving the pump support 6.2 to rise and fall via the flexible rope 6.9 connected to the pump support 6.2. The pump support 6.2 on the guide frame 6.4 forms a floating connection for lifting and lowering the suction pipe. The center of gravity of the submersible pump 6.1 is relatively far behind the pump support 6.2 and in front of the jet mechanism. The tension of the connecting spring 6.7 adjusts the horizontal angle of the pump support 6.2. In shallow water operation areas, the pump support 6.2 is adjusted to adapt to changes in the lotus pond terrain.

[0088] Reference Figure 7 The power generation module 7 mentioned in this invention includes a diesel engine 7.1, a generator 7.2, a power generation control box 7.3, and a power generation module skid. It is a skid-mounted module that provides power to the entire machine. The generator 7.2 is mounted on the power generation module skid and connected to the diesel engine 7.1 to provide AC power to the entire machine. The power generation control box 7.3 is mounted on the power generation module skid, controls the operation of the power generation module 7, and receives control signals from the control module 9. The power generation module skid is a welded frame that is mounted on the main mounting beam 3.3 of the buoyancy box 3. The diesel engine 7.1 and the generator 7.2 are mounted on the power generation module skid.

[0089] Reference Figure 7 The energy storage module 8 mentioned in this invention includes a high-voltage box 8.1 and a battery module 8.2. The high-voltage box 8.1 is a welded box structure, and the battery module 8.2 is a modular energy storage battery module installed inside the high-voltage box 8.1.

[0090] Reference Figure 15 The control module 9 mentioned in this invention is a complete machine control system, including a control box, PLC / single board computer, AC-DC rectifier, DC-AC inverter, etc. The control box is the main workplace and loop management unit of the control system, and it connects the energy storage module 8 and the power execution module to the control unit. This control module 9 is a conventional technology well known to those skilled in the art, and will not be described in detail here.

[0091] The above description is merely a partial preferred embodiment of the present invention. Any person skilled in the art can modify the above-described technical solutions or modify them into equivalent technical solutions. Therefore, any simple modifications or equivalent transformations made based on the technical solutions of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A range-extended, all-electric, lightweight lotus root harvesting equipment, comprising an electric drive walking module (1), a frame assembly (2), a buoyancy box (3), and a four-point linkage lifting mechanism (4), wherein the electric drive walking module (1), the frame assembly (2), the buoyancy box (3), and the four-point linkage lifting mechanism (4) constitute a buoyancy lifting chassis, characterized in that: It also includes a jet module (5), a submersible pump suction module (6), a power generation module (7), an energy storage module (8), and a control module (9). The jet module (5) and the submersible pump suction module (6) form a low-pressure, high-flow swing jet module, which is installed on the buoyancy box (3) to provide jets for the whole machine. The power generation module (7), energy storage module (8) and control module (9) constitute a DC bus power control system. The diesel engine (7.1) of the power generation module (7) drives the generator (7.2) to generate three-phase AC power. The AC-DC rectifier converts the AC power into DC power to charge the battery module (8.2). The power of the battery module (8.2) is converted by the inverter DC-AC to supply power to multiple submersible pumps (6.1), underwater motors (1.2), elevators (4.2) and through-type stepper motors (5.10). The jet module (5) includes a floating jet mechanism, a swing frame (5.4), an upper roller, a lower roller (5.9), a jet frame (5.14), a rolling guide rail (5.15), a swing stepper / servo motor (5.16), a three-star cam (5.17), a power pin (5.18), a motor base (5.19), and a support (5.20). The swing frame (5.4), upper roller, lower roller (5.9), jet frame (5.14), rolling guide rail (5.15), swing stepper / servo motor (5.16), three-star cam (5.17), power pin (5.18) and motor base (5.19) constitute the swing jet mechanism. The jet frame (5.14) is a welded steel structure and is installed on the rectangular outer frame (2.1) of the set frame (2). The rolling guide rail (5.15) is bolted to the upper and lower sides of the jet frame (5.14) to provide a V-shaped rolling channel for the upper roller and lower roller (5.9). The swing stepper / servo motor (5.16), three-star cam (5.17), power pin (5.18) and motor base (5.19) constitute the power mechanism of the swing jet mechanism, which drives the swing frame (5.4) to swing left and right on the rolling pair formed by the upper roller, lower roller (5.9) and rolling guide rail (5.15). The floating jet mechanism includes a jet main tube (5.2), a floating spring (5.3), a swing frame guide (5.5), an upper guide connection (5.6), a lower guide connection (5.7), a through-type stepper motor (5.10), a lead screw nut (5.11), an upper support plate (5.12), and a lower support plate (5.13). The lifting frame consists of a swing frame guide (5.5), an upper support plate (5.12), and a lower support plate (5.13). The upper support plate (5.12) is fixed, and the lower support plate (5.13) slides up and down along the swing frame guide (5.5). A through-type stepper motor (5.10) is connected above the upper support plate (5.12), and a lead screw nut (5.11) is connected to the lower support plate (5.13). The through-type stepper motor (5.10) moves up and down, driving the lower support plate (5.13) to slide up and down along the swing frame guide (5.5) via the lead screw nut (5.11). The jet main pipe (5.2) Installed outside the quick-connect fitting (5.2.1), the floating spring (5.3) is installed between the spring adjusting nut (5.2.4) and the lower support plate (5.13) of the jet main pipe (5.2). The threaded connecting pipe (5.2.2) is fixed with double nuts. The jet main pipe (5.2) jets, and the elasticity of the floating spring (5.3), the gravity of the jet main pipe (5.2) and the lower support plate (5.13) are balanced with the jet reaction force of the jet main pipe (5.2). If the jet nozzle (5.2.6) of the jet main pipe (5.2) encounters an obstacle and retracts, the floating spring (5.3) is further compressed to avoid the obstacle.

2. The extended-range, all-electric, lightweight lotus root harvesting equipment according to claim 1, characterized in that: The swing stepper / servo motor (5.16) is located on the upper part of the motor base (5.19). The output end of the swing stepper / servo motor (5.16) is connected to the three-star cam (5.17). The power pin (5.18) is connected to the lower part of the swing frame (5.4) through the support (5.20) and forms a sliding pair with the three-star cam (5.17) to realize left and right swing. The rotation of the stepper / servo motor (5.16) drives the three-star cam (5.17) to rotate. The three-star cam (5.17) drives the power pin (5.18) to swing left and right, thereby driving the swing frame (5.4) to swing left and right on the upper and lower rolling guide rails (5.15).

3. The extended-range, all-electric, lightweight lotus root harvesting equipment according to claim 2, characterized in that: The upper guide connection (5.6) is installed on the swing frame (5.4), connecting the swing frame (5.4) and the swing frame guide (5.5), and providing support for the swing frame guide (5.5); the lower guide connection (5.7) is installed on the swing frame (5.4), connecting the swing frame (5.4) and the swing frame guide (5.5), and providing support for the swing frame guide (5.5); The upper roller is mounted above the swing frame (5.4) and rolls on the rolling guide rail (5.15), serving as the motion execution component of the swing frame (5.4); the lower roller (5.9) is mounted below the swing frame (5.4) and rolls on the rolling guide rail (5.15), serving as the motion execution component of the swing frame (5.4).

4. The extended-range, all-electric, lightweight lotus root harvesting equipment according to claim 3, characterized in that: The main jet pipe (5.2) is the main jet actuator, installed between the upper support plate (5.12) and the lower support plate (5.13). It mainly consists of a quick-connect coupling (5.2.1), a threaded connecting pipe (5.2.2), an upper jet pipe (5.2.3), a spring adjusting nut (5.2.4), a lower jet pipe (5.2.5), and a jet nozzle (5.2.6). 5.2.1) Used to connect the jet hose (5.1) and the jet main pipe (5.2); the lower end of the quick-connect fitting (5.2.1) is connected to the upper jet pipe (5.2.3) via a threaded connecting pipe (5.2.2), and the upper jet pipe (5.2.3) is installed between the upper support plate (5.12) and the lower support plate (5.13); the spring adjusting nut (5.2.4) is installed on the thread at the lower end of the upper jet pipe (5.2.3) to adjust the output pressure of the floating spring (5.3); the lower jet pipe (5.2.5) is the lower connecting pipe of the jet main pipe (5.2), connecting the upper jet pipe (5.2.3) and the jet nozzle (5.2.6); the jet nozzle (5.2.6) is connected to the lower end of the lower jet pipe (5.2.5), and the floating spring (5.3) is installed on the quick-connect fitting (5.2.1). In addition to 5.2.1), spring adjusting nuts (5.2.4) and lower support plates (5.13) are connected at both ends to support the weight of the lower support plates (5.13) and provide a floating connection for the jet main pipe (5.2).

5. The extended-range, all-electric, lightweight lotus root harvesting equipment according to claim 4, characterized in that: The submersible pump suction module (6) includes a submersible pump (6.1), a pump support frame (6.2), a guide rod (6.3), a guide sleeve (6.4), a lifting frame (6.5), a buoyancy frame (6.6), a buoyancy block (6.7), a buoyancy frame lift (6.8), a flexible rope (6.9), a submersible pump manifold (6.10), a submersible pump pipeline (6.11), a mesh cover (6.12), a check valve, a water storage tank (6.14), a drain valve (6.15), and a lifting guide pair (6.16). One or more submersible pumps (6.1) are installed in the pump support frame (6.2). A mesh cover (6.12) is installed at the inlet end of each submersible pump (6.1). The outlet end of the submersible pump (6.1) is collected through the submersible pump manifold (6.10) and connected to the water storage tank (6.14) through the check valve and the submersible pump pipeline (6.11). The pump support frame (6.2) is a welded frame, and the rear side of the pump support frame (6.2) is connected to the lifting guide pair (6.16); the guide rod (6.3) is connected to the rear of the buoyancy box flat main beam (3.2.1), and forms a sliding pair with the guide sleeve (6.4) to support the lifting of the pump support frame (6.2) and the buoyancy frame (6.6); the guide sleeve (6.4) connects the pump support frame (6.2) and the buoyancy frame (6.6) and slides on the guide rod (6.3); The lifting frame (6.5) is a welded frame, and the two legs of the lifting frame (6.5) are connected to the main beam of the buoyancy box. 3.2.1) A buoyancy frame lift (6.8) is installed in the middle; the buoyancy frame (6.6) is a welded frame with buoyancy blocks (6.7) installed inside, guide sleeves (6.4) connected to both sides, and lifting guide pair (6.16) connected to the rear side; the buoyancy blocks (6.7) are rigid foam blocks installed inside the buoyancy frame (6.6) to provide buoyancy for the pump support frame (6.2); the buoyancy frame lift (6.8) is installed on the lifting frame (6.5) and the buoyancy frame (6.6) to provide lifting power for the buoyancy frame (6.6); the flexible rope (6.9) is a non-metallic flexible rope connected to the pump support frame. The submersible pump housing (6.2) and buoyancy frame (6.6) provide the lifting power transmission medium for the buoyancy frame elevator (6.8) and pump support frame (6.2); the submersible pump manifold (6.10) connects to the outlet of the submersible pump (6.1), collects the water discharged from the submersible pump (6.1), and connects to the submersible pump pipeline (6.11) at the other end; the submersible pump pipeline (6.11) is the intermediate connection channel between the submersible pump (6.1) and the water storage tank (6.14), with one end connected to the submersible pump manifold (6.10) and the other end connected to the water storage tank (6.14) through a one-way valve; the mesh cover (6.12) fixes the submersible pump (6.14). 6.1) The outer side of the inlet is a mesh structure, which provides protection and isolation for large-sized debris for the submersible pump (6.1); the one-way valve is connected between the submersible pump (6.1) and the submersible pump manifold (6.10), allowing only the working water of the submersible pump (6.1) to flow in the forward direction; the water storage tank (6.14) is a barrel-shaped welded structure, installed on the sealed box (3.1), and is a water storage device for the jet working water; the drain valve (6.15) is installed at the bottom of the water storage tank (6.14) to release the jet working water from the water storage tank (6.14); the lifting guide pair (6.16) is installed on the rear main beam of the box beam structure (3.2), and is a guide mechanism for the pump support frame (6.2) and the buoyancy frame (6.6).

6. The extended-range, all-electric, lightweight lotus root harvesting equipment according to claim 1, characterized in that: The electric drive walking module (1) includes a wide track (1.1), an underwater motor (1.2), a reducer (1.3), and an end beam (1.4). The underwater motor (1.2) is connected to the drive wheel of the wide track (1.1) through the reducer (1.3), and the main drive wheel drives the wide track (1.1) to move forward and backward.

7. The extended-range, all-electric, lightweight lotus root harvesting equipment according to claim 1, characterized in that: The power generation module (7) includes a diesel engine (7.1), a generator (7.2), a power generation control box (7.3), and a power generation module skid. It is a skid-mounted module that provides power to the whole machine. The generator (7.2) is installed on the power generation module skid and connected to the diesel engine (7.1) to provide AC power to the whole machine. The power generation control box (7.3) is installed on the power generation module skid to control the operation of the power generation module (7) and receive control signals from the control module (9). The power generation module skid is a welded frame that is installed on the main beam (3.3) of the buoyancy box (3). The diesel engine (7.1) and the generator (7.2) are installed on the power generation module skid.

8. The extended-range, all-electric, lightweight lotus root harvesting equipment according to claim 1, characterized in that: The energy storage module (8) includes a high-voltage box (8.1) and a battery module (8.2). The high-voltage box (8.1) is a welded box structure, and the battery module (8.2) is a modular energy storage battery module installed inside the high-voltage box (8.1).

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