A spraying device for river and lake treatment
By using a dual-tank system and an automated transfer mechanism, the problems of difficult-to-handle pesticide bags and low spraying continuity have been solved, achieving high efficiency, continuity, and stability in pesticide spraying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN URBAN FLOOD CONTROL SURVEY & DESIGN INST CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the storage tank of the pesticide spraying device is relatively high, the hull is prone to swaying on the water, the pesticide bags are not easy to move, the spraying continuity is low, and the boat needs to be stopped to prepare the pesticide again.
A dual-storage medicine tank system was designed, equipped with lifting and rotating mechanisms. The motor drives the screw to rotate and the lifting platform to rise, realizing the automated transfer of medicine bags and continuous preparation of medicine. A three-way solenoid valve is used to control the suction route to achieve the alternating supply of medicine and water.
It greatly saves manpower, reduces the hull sway, improves the continuity of pesticide spraying, and avoids the drawback of having to stop spraying when making medicine.
Smart Images

Figure CN224506900U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pesticide spraying technology, and in particular to a pesticide spraying device for river and lake management. Background Technology
[0002] Eutrophication, cyanobacterial blooms, invasions of harmful aquatic organisms, and pollution by specific pathogens in rivers and lakes are becoming increasingly serious problems, threatening water quality safety, disrupting the balance of aquatic ecosystems, and restricting the sustainable use of water resources. Chemicals (such as algaecides, fungicides, insecticides, and specific plant growth inhibitors) play a crucial role as important treatment methods in emergency response, target population control, and ecological restoration.
[0003] Chinese patent CN219136401U discloses a river treatment chemical spraying device, comprising: a float with a spraying mechanism; the spraying mechanism includes a culvert installed at the stern of the float, an underwater thruster installed at one end of the culvert, a storage tank on the float, the culvert and the storage tank connected by a discharge pipe with a pump installed on the discharge pipe, and a rudder on one side of the underwater thruster. To improve the continuity of each spraying operation, multiple bags of chemical agents are typically placed on the hull. After the chemical agents in the storage tank are sprayed out, the solid chemical agents from the bags are poured into the storage tank, along with ambient water, to mix the chemical agents and water on-site.
[0004] Regarding the aforementioned technologies, the inventors believe that the following drawbacks exist: due to the height of the storage tank and the tendency of the boat to sway on the water, it is not easy to transport heavy medicine bags to the storage tank, and after the medicine in the storage tank is sprayed out, the boat needs to be stopped to prepare medicine in the storage tank again, resulting in low spraying continuity. Utility Model Content
[0005] In order to improve the problems of low continuity and difficulty in transporting pesticide bags during pesticide spraying, this application provides a pesticide spraying device for river and lake management.
[0006] The technical solution of the spraying device for river and lake treatment provided in this application is as follows:
[0007] A spraying device for river and lake treatment includes a hull, a storage tank placed on the hull, a spray pipe with a power source connected to the storage tank, and a main pumping pipe. The device is characterized by having two storage tanks, each connected to a feeding channel; two feeding plates on the hull, the two feeding plates tilting downwards towards each other; and a lifting mechanism for controlling the raising and lowering of the feeding plates and a rotating mechanism for controlling the rotation of the feeding plates.
[0008] By adopting the above technical solution, during the spraying operation, one storage tank supplies pesticide to the spray nozzle, while the staff adds solid pesticide and water to the other storage tank to prepare the pesticide. During the preparation process, the staff only needs to drag the pesticide bag to the lower loading plate, then lift the loading plate through the lifting mechanism, and then rotate the loading plate to the upper loading channel of the storage tank to be prepared through the rotating mechanism. Then, the staff only needs to cut the pesticide bag to let the pesticide inside fall into the loading channel. This transfer process greatly saves manpower and reduces the swaying of the hull during the transfer. Then, water is pumped from the storage tank to be prepared through the main water pipe, and the staff stirs it simultaneously. That is, the two storage tanks alternately spray and prepare the pesticide, which greatly improves the continuity of the spraying process and avoids the defect of having to stop spraying when preparing the pesticide.
[0009] Optionally, the lifting mechanism includes a lead screw rotatably connected to the hull, a motor drivenly connected to the lead screw, a lifting platform threaded through the lead screw, and a rotating platform rotatably connected to the lifting platform, wherein the loading plate is fixedly connected to the rotating platform.
[0010] By adopting the above technical solution, after the medicine bag is placed on the feeding plate, the motor drives the lead screw to rotate, causing the lifting platform on the lead screw to rise. At this time, the feeding plate and the medicine bag also rise. When the feeding plate rises higher than the feeding channel, the rotating mechanism drives the rotating table to rotate, so that the medicine bag on the feeding plate rotates to the top of the feeding channel of the medicine storage box to be fed. Then, the bottom of the medicine bag can be cut open, allowing the medicine to enter the medicine storage box through the feeding channel. Then, the rotating mechanism reverses the lead screw, causing the feeding plate to return to the lowest position, thus completing the transfer operation of the medicine bag. The structure is simple and saves manpower.
[0011] Optionally, the rotating mechanism includes a cylindrical cam that is rotatably and vertically mounted on the top of the lead screw, a spiral groove formed on the cylindrical cam, a limiting roller that is slidably connected to the medicine storage tank, and a connecting member for connecting the cylindrical cam and the rotating table. The limiting roller is adapted to the spiral groove. There are two spiral grooves and two limiting rollers, and they correspond one-to-one with each other. The two spiral grooves have opposite rotation directions. When one of the limiting rollers is in its corresponding spiral groove, the other limiting roller is outside its corresponding spiral groove.
[0012] By adopting the above technical solution, the moving limiting roller is inserted into the spiral groove corresponding to the pre-rotation direction of the cylindrical cam. After the rotary table is raised, the cylindrical cam is connected to the rotary table through the connecting piece. When the rotary table continues to rise and pushes the cylindrical cam to rise, the cylindrical cam rotates due to the action of the limiting roller, which in turn causes the rotary table to rotate due to the rotation of the cylindrical cam. When the medicine bag on the feeding plate moves to the designated feeding channel, the motor can be turned off. Then, the staff unloads the raised medicine bag. The lifting and rotation process of the feeding plate is controlled by a single motor, and the structure is relatively simple, effectively reducing costs.
[0013] Optionally, the connecting member is a toothed portion formed at one end of the rotary table and the cylindrical cam that are close to each other, and the toothed portion of the rotary table and the toothed portion of the cylindrical cam mesh and fit together.
[0014] By adopting the above technical solution, when the rotary table rises to abut against the cylindrical cam, the teeth of the cylindrical cam mesh with the teeth of the rotary table, thereby completing the connection between the cylindrical cam and the rotary table, so as to facilitate the subsequent rotation operation of the rotary table.
[0015] Optionally, each of the two medicine storage tanks is connected to a branch water pumping pipe and a liquid outlet pipe, and a three-way solenoid valve is connected between the spray pipe and the two liquid outlet pipes, and between the main water pumping pipe and the two branch water pumping pipes.
[0016] By adopting the above technical solution, the nozzle suction path and the main water pumping pipe path are controlled by controlling the three-way solenoid valve, so that the nozzle suctions the prepared medicine storage tank, and the main water pumping pipe suctions the medicine storage tank to be injected with water and stirred. The control method is relatively simple.
[0017] Optionally, several positioning posts are fixed to the top of each of the two feeding plates on the opposite side, and the upper end of the positioning posts is a pointed tip.
[0018] By adopting the above technical solution, when the medicine bag is placed on the feeding plate, the positioning column punctures the medicine bag to fix it in place, making it easier to unload the medicine when the medicine bag is subsequently punctured and unloaded, and the medicine bag will not fall into the medicine storage box.
[0019] Optionally, the feeding channel is equipped with a bag-opening knife at the rotation path of the medicine bag.
[0020] By adopting the above technical solution, as the medicine bag rotates to the top of the feeding channel, the bag opening knife cuts open the bottom of the medicine bag in real time, allowing the medicine inside the bag to fall into the feeding channel, eliminating the need for manual bag cutting.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] 1. During the process of moving the medicine bag to the upper part of the feeding channel, the staff only needs to drag the medicine bag to the lower feeding plate, then lift the feeding plate by the lifting mechanism, and then rotate the feeding plate to the upper part of the feeding channel corresponding to the medicine storage box to be prepared by the rotating mechanism. Then, the medicine bag only needs to be cut open so that the medicine inside the medicine bag falls into the feeding channel. This transfer process greatly saves manpower and reduces the swaying of the ship during the transfer process.
[0023] 2. During the spraying operation, the three-way solenoid valve is used to control the suction path of the spray nozzle and the main water pumping pipe. The spray nozzle sucks the prepared medicine storage tank, while the main water pumping pipe sucks the medicine storage tank that is to be injected with water and stirred. The two medicine storage tanks are sprayed and prepared alternately, which greatly improves the continuity of the spraying process and avoids the defect of having to stop spraying when preparing medicine.
[0024] 3. When the medicine bag is placed on the feeding plate, the positioning column punctures the medicine bag to fix it in place, making it easier to unload the medicine when the bag is subsequently punctured, and preventing the medicine bag from falling into the medicine storage tank. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;
[0026] Figure 2 This is a partial structural schematic diagram used in this application to illustrate the lifting mechanism and the rotating mechanism;
[0027] Figure 3 This is a schematic diagram of the overall structure from the bow view of an embodiment of this application.
[0028] Reference numerals: 1. Hull; 2. Medicine storage tank; 21. Spray pipe; 211. Liquid outlet pipe; 22. Main water pumping pipe; 221. Branch water pumping pipe; 23. Feeding channel; 24. Three-way solenoid valve; 3. Feeding plate; 31. Positioning column; 4. Lifting mechanism; 41. Lead screw; 42. Motor; 43. Lifting platform; 44. Rotary platform; 5. Rotating mechanism; 51. Cylindrical cam; 52. Spiral groove; 53. Limiting roller; 54. Connecting piece; 6. Bag opening knife. Detailed Implementation
[0029] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0030] This application discloses a spraying device for pesticides used in river and lake management. (Refer to...) Figure 1 , Figure 2 and Figure 3The river and lake treatment pesticide spraying device includes a hull 1 and two pesticide storage tanks 2 placed on the hull 1. Each of the two storage tanks 2 is connected to a branch pumping pipe 221 and a liquid outlet pipe 211. The two branch pumping pipes 221 are connected to a three-way solenoid valve 24, which in turn connects to a main pumping pipe 22. The two liquid outlet pipes 211 are also connected to a three-way solenoid valve 24, which in turn connects to a spray pipe 21. Both the spray pipe 21 and the main pumping pipe 22 are... A water pump is connected to the medicine storage tank 2, and a feeding channel 23 is connected to each other. Two feeding plates 3 are set on the hull 1. The two feeding plates 3 are inclined downward on the side that is close to each other. Several positioning posts 31 are fixed to the top of the side that is far away from each other. The upper end of the positioning posts 31 is pointed. A bag opening knife 6 is set at the feeding channel 23 at the rotation path of the medicine bag. The hull 1 is equipped with a lifting mechanism 4 for controlling the raising and lowering of the feeding plate 3 and a rotating mechanism 5 for controlling the rotation of the feeding plate 3.
[0031] During the spraying operation, the three-way solenoid valve 24 controls the suction path of the spray nozzle 21 and the main water pumping pipe 22, ensuring that the spray nozzle 21 draws the prepared medicine storage tank 2, while the main water pumping pipe 22 draws the medicine storage tank 2 to be filled with water and stirred. The control of the three-way solenoid valve 24 also reduces the number of water pumps required. The water pumps are then started to supply medicine to the spray nozzle 21 from the prepared medicine storage tank 2. Water is added to the medicine storage tank 2 to be prepared, and workers add solid medicine to the medicine storage tank 2. During the preparation process, workers only need to drag the medicine bag onto the lower loading plate 3, and the positioning post 31 punctures the medicine bag. The bag is used to fix the medicine bag, and then the lifting mechanism 4 lifts the feeding plate 3. Then the rotating mechanism 5 rotates the feeding plate 3 to the feeding channel 23 corresponding to the medicine storage tank 2 to be made. During this process, the bag opening knife 6 cuts the medicine bag, so that the medicine inside the medicine bag falls into the feeding channel 23. This transfer process greatly saves manpower and reduces the swaying amplitude of the ship 1 during the transfer process. Finally, the main water pipe 22 pumps water into the medicine storage tank 2 to be made, and the staff stirs it at the same time. That is, the two medicine storage tanks 2 alternately spray and make medicine, which greatly improves the continuity of the spraying process and avoids the defect of having to stop spraying when making medicine.
[0032] Reference Figure 2 The lifting mechanism 4 includes a lead screw 41 rotatably connected to the hull 1, a motor 42 driven by the lead screw 41, a lifting platform 43 threaded through the lead screw 41, and a rotating platform 44 rotatably connected to the lifting platform 43. A limiting rod parallel to the lead screw 41 and passing through the lifting platform 43 is fixedly connected to the hull 1. The feeding plate 3 is fixedly connected to the rotating platform 44. The lead screw 41 and the motor 42 can be driven by a worm gear reducer, which ensures the unidirectional drive of the motor 42 and increases the rotation torque of the lead screw 41.
[0033] After the medicine bag is placed on the feeding plate 3, the motor 42 drives the lead screw 41 to rotate, causing the lifting platform 43 on the lead screw 41 to rise. At this time, the feeding plate 3 and the medicine bag also rise. When the feeding plate 3 rises higher than the feeding channel 23, the rotating mechanism 5 drives the rotating table 44 to rotate, so that the medicine bag on the feeding plate 3 rotates to above the feeding channel 23 of the medicine storage box 2 to be fed. After the medicine in the medicine bag enters the medicine storage box 2 through the feeding channel 23, the rotating mechanism 5 reverses the lead screw 41, so that the feeding plate 3 returns to the lowest position along the original path, thus completing the transfer operation of the medicine bag. The structure is simple and saves manpower.
[0034] Reference Figure 1 and Figure 2 The rotating mechanism 5 includes a cylindrical cam 51 that is rotatably and liftingly mounted on the top of the lead screw 41, a spiral groove 52 formed on the cylindrical cam 51, a limiting roller 53 that is slidably connected to the medicine storage tank 2, and a connecting piece 54 for connecting the cylindrical cam 51 and the rotary table 44. The limiting roller 53 is adapted to the spiral groove 52. There are two spiral grooves 52 and two limiting rollers 53, and they correspond one-to-one with each other. The two spiral grooves 52 rotate in opposite directions. When one limiting roller 53 is in its corresponding spiral groove 52, the other limiting roller... 53 is located outside the corresponding spiral groove 52. The connecting part 54 is a toothed part opened at one end of the rotary table 44 and the cylindrical cam 51 close to each other. The toothed part of the rotary table 44 and the toothed part of the cylindrical cam 51 mesh and match. In this application, a mounting frame is fixedly connected to the medicine storage box 2. The cylindrical cam 51 rotates and is mounted on the mounting frame. A sliding rod is also slidably connected to the mounting frame. The limiting roller 53 is rotatably connected to both ends of the sliding rod. The sliding rod can be driven by manual pushing and pulling or by adding an electric push rod.
[0035] The operator manually moves the limiting roller 53, inserting it into the spiral groove 52 corresponding to the pre-rotation direction of the cylindrical cam 51. After the rotary table 44 is raised, the cylindrical cam 51 is connected to the rotary table 44 via the connecting piece 54. As the rotary table 44 continues to rise, pushing the cylindrical cam 51 upward, the cylindrical cam 51 rotates due to the action of the limiting roller 53, causing the rotary table 44 to rotate as well. When the medicine bags on the feeding plate 3 move above the designated feeding channel 23, the motor 42 can be turned off. Subsequently, the operator unloads the raised medicine bags. The lifting and rotation processes of the feeding plate 3 are all controlled by a single motor 42, and the structure is relatively simple, effectively reducing costs. When the rotary table 44 rises to abut against the cylindrical cam 51, the teeth of the cylindrical cam 51 mesh with the teeth of the rotary table 44, thus completing the connection between the cylindrical cam 51 and the rotary table 44, facilitating subsequent rotation operations of the rotary table 44.
[0036] The implementation principle of the spraying device for river and lake treatment in this application embodiment is as follows: During the spraying operation, the three-way solenoid valve 24 is controlled to control the suction path of the spray pipe 21 and the main water pumping pipe 22, so that the spray pipe 21 sucks the prepared storage tank 2, and the main water pumping pipe 22 sucks the storage tank 2 to be filled with water and stirred. Then, the water pump is started to supply the prepared storage tank 2 with the spray pipe 21. Water is added to the storage tank 2 to be prepared, and the staff adds solid agent to the storage tank 2 to be prepared.
[0037] During the pharmaceutical manufacturing process, the operator only needs to manually move the limiting roller 53 so that it inserts into the spiral groove 52 corresponding to the pre-rotation direction of the cylindrical cam 51, and drag the medicine bag onto the lower feeding plate 3. The positioning pin 31 punctures the medicine bag to fix it in place. Then, the motor 42 drives the lead screw 41 to rotate, causing the lifting platform 43 on the lead screw 41 to rise. At this time, the feeding plate 3 and the medicine bag also rise. When the feeding plate 3 rises higher than the feeding channel 23, the teeth of the cylindrical cam 51 mesh with the teeth of the rotating table 44. When the rotating table 44 continues to rise... When the cylindrical cam 51 rises, it rotates due to the action of the limiting roller 53. This rotation causes the rotary table 44 to rotate as well. The bag-opening knife 6 cuts the medicine bag, allowing the medicine inside to fall into the feeding channel 23. This transfer process greatly saves manpower and reduces the swaying amplitude of the ship 1 during the transfer process. Finally, the staff can stir the medicine storage tank 2 to be prepared. That is, the two medicine storage tanks 2 alternately spray and prepare medicine, which greatly improves the continuity of the spraying process and avoids the defect of having to stop spraying when preparing medicine.
[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A spraying device for river and lake treatment, comprising a hull (1), a storage tank (2) placed on the hull (1), a spray pipe (21) with a power source connected to the storage tank (2), and a main pumping pipe (22), characterized in that: There are two medicine storage boxes (2), and each medicine storage box (2) is connected to a feeding channel (23). The hull (1) is provided with two feeding plates (3). The two feeding plates (3) are inclined downward on one side close to each other. The hull (1) is provided with a lifting mechanism (4) for controlling the lifting of the feeding plates (3) and a rotating mechanism (5) for controlling the rotation of the feeding plates (3).
2. The agent spraying device for river and lake treatment according to claim 1, characterized in that: The lifting mechanism (4) includes a lead screw (41) rotatably connected to the hull (1), a motor (42) drivenly connected to the lead screw (41), a lifting platform (43) threaded through the lead screw (41), and a rotating platform (44) rotatably connected to the lifting platform (43). The feeding plate (3) is fixedly connected to the rotating platform (44).
3. The agent spraying device for river and lake treatment according to claim 2, characterized in that: The rotating mechanism (5) includes a cylindrical cam (51) that is rotated and lifted at the top of the lead screw (41), a spiral groove (52) opened on the cylindrical cam (51), a limiting roller (53) that is slidably connected to the medicine storage tank (2), and a connecting piece (54) for connecting the cylindrical cam (51) and the rotating table (44). The limiting roller (53) is adapted to the spiral groove (52). There are two spiral grooves (52) and two limiting rollers (53) that correspond to each other. The two spiral grooves (52) have opposite directions of rotation. When one of the limiting rollers (53) is in the spiral groove (52) corresponding to it, the other limiting roller (53) is outside the spiral groove (52) corresponding to it.
4. The agent spraying device for river and lake treatment according to claim 3, characterized in that: The connecting member (54) is a toothed part formed at one end of the rotary table (44) and the cylindrical cam (51) close to each other, and the toothed part of the rotary table (44) and the toothed part of the cylindrical cam (51) mesh and fit together.
5. The agent spraying device for river and lake treatment according to claim 1, characterized in that: Each of the two medicine storage tanks (2) is connected to a branch water pumping pipe (221) and a liquid outlet pipe (211). A three-way solenoid valve (24) is connected between the spray pipe (21) and the two liquid outlet pipes (211), and between the main water pumping pipe (22) and the two branch water pumping pipes (221).
6. The agent spraying device for river and lake treatment according to claim 1, characterized in that: Several positioning posts (31) are fixed to the top of the two feeding plates (3) on the opposite side. The upper end of the positioning posts (31) is a pointed tip.
7. The agent spraying device for river and lake treatment according to claim 1, characterized in that: The feeding channel (23) is equipped with a bag-opening knife (6) at the rotation path of the medicine bag.