Growth regulator spraying device for rice and rape seedlings in saline-alkali soil
By designing a spray device with a motor-driven main wheel and a booster piston cylinder, the problems of uneven Chinese medicine and high manpower consumption of the growth regulator of rice rape seedlings in saline-alkali land were solved, and a more efficient and uniform drug spraying effect was achieved.
Patent Information
- Application Number
- CN202510445847.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2025-06-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the spraying of growth regulators for rice rape seedlings in saline-alkali land, existing devices have problems such as uneven agents, large labor consumption, and drug deposition, resulting in low efficiency.
A spraying device including supporting the main frame, steering wheel, main wheel, motor, water tank bracket and agitating system is designed. The main wheel is driven by the motor to drive the pressurized piston to return and move back and forth to achieve uniform spraying of the agent, and preventing the deposition of the agent through the stirring fan blade.
The device reduces the physical consumption of the user, improves the spraying efficiency, avoids uneven distribution and deposition problems of the agent, and achieves a more uniform and efficient spraying of the agent.
Smart Images
Figure CN120205374A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of agricultural agent spraying, and specifically to a spraying device for growth regulators for rice and rapeseed seedlings in saline-alkali land. Background Art
[0002] China is rich in saline-alkali land resources, and most of the soil layers are deep and the terrain is flat. Approximately 80% of it can be developed into arable land, which is a land resource with great potential. Planting salt-tolerant crops in saline-alkali land can promote the accumulation of soil organic matter by crop growth and improve the soil structure. Planting salt-tolerant rice and rapeseed varieties has the special advantages of "utilizing" and "improving" saline-alkali land. While increasing the rice yield and the domestic supply capacity of vegetable oil, it improves the physical and chemical properties of the soil, reduces the soil pH value and salt content, and increases the soil organic matter content, with good economic benefits.
[0003] However, there are few people and a shortage of labor in coastal tidal flats. During the process of rice and rapeseed rotation planting, there is a lack of a spraying device that is suitable for use in paddy fields for rice and dry land operation for rapeseed to save labor; the planting test area in the large field is relatively large, and a large amount of agents are required when spraying growth regulators on seedlings. It is difficult for manpower to carry them on the back, and it is time-consuming, laborious and inefficient to replenish the agents back and forth. There is an urgent need for a non-manpower large-capacity growth regulator spraying device. However, during the long-term spraying process of a large-capacity device, drug deposition is likely to occur, resulting in uneven distribution of the agent; secondly, during the process of manually spraying growth regulators, the manually controlled traveling speed and the pump liquid rate of the spraying device are unstable, resulting in uneven distribution of the agent during the spraying process. Summary of the Invention
[0004] Aiming at the deficiencies existing in the use of the existing spraying devices for rice and rapeseed seedling growth regulators as described in the background art.
[0005] The present invention provides the following technical solution: A growth regulator spraying device for rice and rapeseed seedlings in saline-alkali land, including a main support frame. A steering wheel, a main wheel, a motor and a water tank bracket are installed on the main support frame. A steering shaft is movably connected above the steering wheel, and the steering shaft is movably connected to one end of the main support frame. The top of the steering shaft is fixedly connected with a hand-held handle. A wheel groove for the main wheel to rotate is provided on the main support frame. The main wheel is movably installed at the wheel groove at the other end of the main support frame. A wheel axle is provided in the middle of the main wheel. Both ends of the wheel axle extend to both sides of the main support frame, and side discs are fixedly connected at both ends. Teeth are provided on one of the side discs and are movably engaged with a linkage chain through the teeth. The water tank bracket is fixedly installed on the upper side of the main support frame. The other end of the linkage chain is engaged with the motor. A speed control switch is fixedly installed on the hand-held handle and is electrically connected to the motor. Controlling the rotation speed of the motor can drive the side disc to rotate. The water tank bracket is located on both sides of the main support frame near one end of the main wheel and extends upward to the top of the main wheel. The water tank main body is fixedly placed on the top of the water tank bracket. The water tank main body is divided into a liquid storage part on both sides and a liquid pumping part in the middle of the top. An eccentric shaft rod is fixedly installed on the outside of the side disc. The liquid pumping part includes a pressurizing chamber on both sides and a spraying head chamber in the middle. A one-way valve is provided on one side of the pressurizing chamber and is connected to the liquid storage part through the one-way valve. Here, the conduction direction of the one-way valve is from the liquid storage part to the liquid pumping part. A medicine spraying head is fixedly connected to the front of the spraying head chamber. A one-way valve is provided between the pressurizing chamber and the spraying head chamber. Here, the conduction direction of the one-way valve is from the pressurizing chamber. A pressurizing piston cylinder is installed in the pressurizing chamber. The top of the pressurizing piston cylinder is connected to the liquid storage part. The bottom of the pressurizing piston cylinder extends to the bottom of the liquid pumping part. A pressurizing piston is movably sleeved in the middle of the pressurizing piston cylinder. The bottom of the pressurizing piston is movably connected to a connecting shaft. The other end of the connecting shaft is movably sleeved on the eccentric shaft rod. The forward rotation of the main wheel drives the pressurizing piston to move back and forth in the pressurizing piston cylinder.
[0006] Preferably, a stirring shaft is movably arranged at the middle of the liquid storage part coaxially with the wheel axle of the main wheel. Stirring fan blades are fixedly connected to the middle of the stirring shaft. A fan blade linkage block is fixedly installed on the inner side of the stirring fan blades. Opposite magnetic blocks are provided on the fan blade linkage block and the eccentric shaft rod, so that when the side disc rotates, the eccentric shaft rod drives the fan blade linkage block to rotate coaxially, and stirs the growth regulator in the liquid storage part.
[0007] Preferably, the upper side of the booster piston cylinder is a piston cylinder transverse axis located inside the stirring shaft, and the lower end extends to the bottom of the stirring shaft, and multi-stage limit grooves are arranged on both sides of the inner wall of the stirring shaft, and grooves are opened at both ends of the piston cylinder transverse axis, and a block spring is fixedly installed in the groove, and the tail end of the block spring is fixedly connected to the limit block, and the limit block extends outward from the piston cylinder transverse axis and is clamped to the multi-stage limit groove for fixation, and a movable cylinder is fixedly arranged on the outside of the water tank body near the multi-stage limit groove, and a limit magnetic block is movably sleeved in the movable cylinder, and an opposite magnetic block is arranged between the limit magnetic block and the outer end of the limit block, and the bottom of the limit magnetic block is fixedly connected to a floating plate connecting rod, and the bottoms of the two floating plate connecting rods on the same side are fixedly connected to the same water level floating plate.
[0008] Preferably, the outer edge of the main wheel is set to a "T"-shaped section, a scraper is fixedly installed on the lower side of the tail end of the wheel groove, and the height of the water tank bracket is higher than the highest point of the main wheel.
[0009] Preferably, the water tank body is in an inverted "U" shape, and a liquid replenishing port is provided on the top of the water tank body.
[0010] Preferably, the water tank bracket is in an inverted "U" shape.
[0011] Preferably, a liquid guide tube is provided in the liquid storage part at the connection point between the liquid storage part and the boosting chamber and leads to the bottom of the liquid storage part, and an air vent connected to the outside of the top of the water tank body is opened at the top of the liquid guide tube, and a sealing plug is provided at the location.
[0012] Preferably, the booster piston cylinder is movably sleeved to the bottom opening of the liquid storage portion in a "T" shape, and a sealing rubber ring is installed at the opening.
[0013] Preferably, the water level floating plate is located at the bottom of the liquid storage portion and does not contact it.
[0014] The present invention has the following beneficial effects: 1. The present invention reduces the user's physical exertion and improves the spraying efficiency of the growth regulator by installing a motor to drive the main wheel forward, and installs a stirring fan blade in the liquid storage part. When the side disk rotates, the eccentric shaft drives the fan blade linkage block to rotate coaxially, thereby stirring the growth regulator in the liquid storage part, avoiding the problem of uneven distribution of the agent due to material deposition during the spraying process, which affects the spraying effect.
[0015] 2. In the present invention, the forward rotation of the main wheel drives the pressurizing piston to reciprocate within the pressurizing piston cylinder, thereby continuously sucking the growth regulator in the liquid storage part into the pressurizing cavity and then pressing it into the liquid pumping part, and finally spraying it outwards from the chemical spraying nozzle. Along with the change in the traveling speed of the main wheel, the frequency of the reciprocating pumping of the pressurizing piston driven by the eccentric shaft rod changes, thereby achieving the effect of regulating the spraying amount and avoiding the problem of uneven spraying caused by different traveling speeds at a fixed spraying amount.
[0016] 3. In the present invention, by setting the pressurizing piston cylinder in a "T" shape and movably sleeving it at the bottom opening of the liquid storage part, the floating of the water level floating plate due to the change in the liquid level is utilized, and further the effect of controlling the floating plate connecting rod to push the limit magnetic attraction block to move up and down is achieved. Furthermore, the limit clamping block is driven to switch the height gears up and down along the multi-stage limit groove, realizing automatically reducing the spraying hydraulic pressure at a high water level and avoiding the waste of the chemical agent caused by a large amount of the growth regulator penetrating and settling to the water surface under high pressure. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic sectional view of the overall structure of the present invention; Figure 3 is a sectional view of the internal liquid storage part structure of the present invention; Figure 4 is a sectional view of the internal liquid pumping part structure of the present invention; Figure 5 is a schematic sectional view of the overall pressurizing piston cylinder of the present invention; Figure 6 For the present invention Figure 5 is a partially enlarged schematic view of the structure at A in the figure.
[0018] In the figure: 1. Support main frame; 11. Steering wheel; 111. Steering shaft; 112. Handheld handle; 12. Main wheel; 121. Mud scraper; 122. Side disc; 123. Linkage chain; 124. Eccentric shaft rod; 13. Motor; 14. Water tank bracket; 2. Water tank main body; 21. Liquid storage part; 211. Stirring shaft; 212. Stirring fan blade; 213. Fan blade linkage block; 22. Liquid pumping part; 221. Pressurizing cavity; 222. Nozzle cavity; 223. Liquid guiding pipe; 2231. Air release port; 224. Check valve; 23. Chemical spraying nozzle; 24. Liquid replenishing port; 3. Pressurizing piston cylinder; 31. Piston cylinder horizontal axis; 311. Limit clamping block; 312. Clamping block spring; 32. Pressurizing piston; 33. Connecting shaft; 4. Water level floating plate; 41. Floating plate connecting rod; 42. Limit magnetic attraction block; 43. Movable cylinder; 44. Multi-stage limit groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0020] Please refer to Figure 1 , a spraying device for growth regulators for rice and rapeseed seedlings in saline-alkali land, including a main support frame 1. A steering wheel 11, a main wheel 12, a motor 13 and a water tank bracket 14 are installed on the main support frame 1. A steering shaft 111 is movably connected above the steering wheel 11. The steering shaft 111 is movably connected to one end of the main support frame 1. The top of the steering shaft 111 is fixedly connected with a hand-held handle 112, which is convenient for the user to hold and control the steering. A wheel groove for the main wheel 12 to rotate is opened on the main support frame 1. The main wheel 12 is movably installed at the wheel groove at the other end of the main support frame 1. The outer edge of the main wheel 12 is set to a "T" - shaped cross - section, which helps to maintain the balance of the main wheel 12 in the paddy field and at the same time reduces the subsidence in the paddy field. A mud - scraping plate 121 is fixedly installed on the lower side of the tail end of the wheel groove, so that when the main wheel 12 rotates, the mud blocks adhered to the main wheel 12 can be scraped and cleaned, avoiding the increase of self - weight caused by a large amount of mud adhered to the main wheel 12 during use. A wheel axle is arranged in the middle of the main wheel 12. Both ends of the wheel axle extend to both sides of the main support frame 1 and are fixedly connected with side plates 122 at both ends. Teeth are provided on one of the side plates 122 and are movably engaged with a linkage chain 123 through the teeth. A water tank bracket 14 is fixedly installed on the upper side of the main support frame 1. The other end of the linkage chain 123 is engaged with the motor 13. A speed - control switch is fixedly installed on the hand - held handle 112 and is electrically connected to the motor 13. Controlling the rotation speed of the motor 13 can drive the side plate 122 to rotate, thereby driving the main wheel 12 to move forward, reducing the physical consumption of the user and improving the efficiency when spraying the growth regulator. The water tank bracket 14 is in an inverted "U" shape, located on both sides of the main support frame 1 near one end of the main wheel 12 and extending upward to the top of the main wheel 12. A water tank main body 2 is fixedly placed on the top of the water tank bracket 14. A liquid - replenishing port 24 is opened on the top of the water tank main body 2.
[0021] Please refer to Figure 2 and Figure 3The water tank body 2 is in an inverted "U" shape, so that after the regulator is injected, the center of gravity of the water tank body 2 is close to the bottom end, which is more conducive to the balance control of the device. The water tank body 2 is divided into a liquid storage part 21 located on both sides and a pump liquid part 22 in the middle of the top. A stirring shaft 211 is movably arranged in the middle of the liquid storage part 21 coaxially with the wheel axle of the main wheel 12, and a stirring fan blade 212 is fixedly connected in the middle of 2211. A fan blade linkage block 213 is fixedly installed on the inner side of the stirring fan blade 212, and an eccentric shaft rod 124 is fixedly installed on the outer side of the side plate 122. Opposite magnetic blocks are provided on the fan blade linkage block 213 and the eccentric shaft rod 124, so that when the side plate 122 rotates, the eccentric shaft rod 124 drives the fan blade linkage block 213 to rotate coaxially, thereby stirring the growth regulator in the liquid storage part 21, avoiding material deposition during spraying and causing uneven distribution of the agent, thereby affecting the spraying effect.
[0022] See 4 and Figure 5 The pumping liquid part 22 includes a boosting chamber 221 on both sides and a nozzle chamber 222 in the middle. A one-way valve 224 is provided on one side of the boosting chamber 221, and the one-way valve 224 is connected to the liquid storage part 21. The one-way valve 224 is connected from the liquid storage part 21 to the pumping liquid part 22. A liquid guide tube 223 is provided in the liquid storage part 21 at the connection point and is connected to the bottom of the liquid storage part 21 to ensure that the regulator can still be sucked into the pumping liquid part 22 through the liquid guide tube 223 when the liquid level in the liquid storage part 21 is low. The front of the nozzle chamber 222 is fixedly connected with the spray nozzle 23, and a one-way valve 224 is arranged between the boosting chamber 221 and the nozzle chamber 222. The conducting direction of the one-way valve 224 is from the boosting chamber 221. A boosting piston cylinder 3 is installed in the boosting chamber 221. The top of the boosting piston cylinder 3 is connected with the liquid storage part 21, and the bottom of the boosting piston cylinder 3 extends to the bottom of the pump liquid part 22. The middle of the boosting piston cylinder 3 is movably connected with a boosting piston 32, and the bottom of the boosting piston 32 is movably connected with a connecting The connecting shaft 33, the other end of which is movably sleeved on the eccentric shaft 124, drives the booster piston 32 to move back and forth in the booster piston cylinder 3 through the movement and rotation of the main wheel 12, thereby continuously sucking the growth regulator in the liquid storage part 21 into the booster chamber 221 and then pressing it into the pump liquid part 22, and finally spraying it outward from the spray nozzle 23. As the travel speed of the main wheel 12 changes, the frequency of the eccentric shaft 124 driving the booster piston 32 to pump pressure back and forth changes accordingly, thereby achieving the effect of regulating the spraying amount, avoiding the problem of uneven spraying caused by different travel speeds under a fixed spraying amount, and the top of the liquid guide pipe 223 is provided with an air vent 2231 connected to the outside world at the top of the water tank body 2, and a sealing plug is provided thereat. When the normal movement modification does not require pumping liquid spraying, the sealing plug at the air vent 2231 is removed to open it. At this time, when the device is normally moved, the growth regulator will not be sprayed outward because the liquid guide pipe 223 is connected to the outside world, thereby avoiding the waste of medicine during normal movement.
[0023] See alsoFigure 6 The booster piston cylinder 3 is movably sleeved to the bottom opening of the liquid storage part 21 in a "T" shape, and a sealing rubber ring is installed at the opening to prevent leakage. The upper side of the booster piston cylinder 3 is the piston cylinder transverse axis 31 located in the stirring shaft 211, and the lower end extends to the bottom of the stirring shaft 211. Both sides of the inner wall of the stirring shaft 211 are provided with multi-stage limit grooves 44, and grooves are opened at both ends of the piston cylinder transverse axis 31, and a block spring 312 is fixedly installed in the groove, and the tail end of the block spring 312 is fixedly connected to the limit block 311, the limit block 311 extends outward from the horizontal axis 31 of the piston cylinder and is clamped to the multi-step limit groove 44 for fixing. A movable cylinder 43 is fixedly arranged on the outer side of the water tank body 2 near the multi-step limit groove 44. The movable cylinder 43 is movably sleeved with a limit magnetic block 42. An opposite magnetic block is arranged between the limit magnetic block 42 and the outer end of the limit block 311, so that the two are attracted to each other. The bottom of the limit magnetic block 42 is fixedly connected to the floating plate connecting rod 41. The bottoms of the two floating plate connecting rods 41 on the same side are fixedly connected to the bottom of the limit magnetic block 42. The same water level float 4 is fixedly connected to the part, and the water level float 4 is located at the bottom of the liquid storage part 21 and does not contact it. When the water level in the field changes, the water level float 4 pushes the limit magnetic suction block 42 to move up and down through the float connecting rod 41, thereby driving the limit card block 311 to switch the height gear up and down along the multi-stage limit groove 44. When the water level rises, the piston cylinder transverse axis 31 moves up to a higher gear. At this time, the reciprocating interval of the booster piston 32 remains unchanged and the position of the booster piston cylinder 3 moves up, resulting in the main wheel 12 The speed is the same, the flow rate of the pump liquid is reduced and the drug pressure in the spray head cavity 222 is reduced, thereby achieving the effect of low-pressure spraying, avoiding a large amount of growth regulator penetrating and settling to the water surface under high pressure to cause waste of medicine, and when the water level is low or there is no water for spraying rapeseed, the water level float 4 falls and drives the piston cylinder transverse axis 31 to fall to the bottom of the booster cavity 221. The lowest gear, at this time, the reciprocating distance of the booster piston 32 in the booster piston cylinder 3 increases, and the original set spraying hydraulic pressure is restored for normal spraying.
[0024] The working principle of the method of the present invention is as follows: During use, a growth regulator is injected into the two liquid storage parts 21 through the liquid replenishing port 24. The air release port 2231 is opened, and the motor 13 is started to move the device to the field to be sprayed. After that, the air release port 2231 is closed, and the rotation speed of the motor 13 is controlled to drive the side disc 122 to rotate, thereby driving the main wheel 12 to move forward normally among the seedlings. When the side disc 122 rotates, the eccentric shaft rod 124 drives the fan blade linkage block 213 to rotate coaxially, so as to stir the growth regulator in the liquid storage part 21, avoiding uneven distribution of the medicament caused by material deposition during spraying. At the same time, the forward rotation of the main wheel 12 drives the pressurizing piston 32 to move back and forth in the pressurizing piston cylinder 3, so as to continuously suck the growth regulator in the liquid storage part 21 into the pressurizing chamber 221 and then press it into the liquid pumping part 22, and finally spray it out from the medicine spraying nozzle 23. With the change of the traveling speed of the main wheel 12, the frequency of the reciprocating pumping of the pressurizing piston 32 driven by the eccentric shaft rod 124 changes accordingly, so as to achieve the effect of regulating the spraying amount. When the water level is relatively high, the water level floating plate 4 pushes the limit magnetic block 42 to move upward through the floating plate connecting rod 41, thereby driving the limit clamping block 311 to switch the height gear upward along the multi-stage limit groove 44. At this time, the reciprocating interval of the pressurizing piston 32 remains unchanged while the position of the pressurizing piston cylinder 3 moves upward. As a result, when the main wheel 12 rotates at the same speed, the liquid pumping flow rate decreases and the medicine pressure in the nozzle chamber 222 decreases, so as to achieve the effect of low-pressure liquid spraying and avoid waste of the medicament caused by a large amount of growth regulator penetrating and settling to the water surface under high pressure.
[0025] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A growth regulator spraying device for rice and rapeseed seedlings in saline-alkali land, comprising a supporting main frame (1), on which a steering wheel (11), a main wheel (12), a motor (13) and a water tank bracket (14) are mounted, a steering shaft (111) is movably connected above the steering wheel (11), the steering shaft (111) is movably connected to one end of the supporting main frame (1), and a hand-held handle (112) is fixedly connected to the top of the steering shaft (111), characterized in that: The supporting main frame (1) is provided with a wheel groove for the main wheel (12) to rotate. The main wheel (12) is movably mounted at the wheel groove at the other end of the supporting main frame (1). A wheel axle is provided in the middle of the main wheel (12). Both ends of the wheel axle extend to both sides of the supporting main frame (1) and are fixedly connected to side discs (122) at both ends. One side disc (122) is provided with teeth and a linkage tooth chain (123) is movably engaged with the teeth. A water tank bracket (14) is fixedly mounted on the upper side of the supporting main frame (1). The other end of the linkage tooth chain (123) is engaged with the motor (13). A speed control switch is fixedly mounted on the hand-held handle (112) and is electrically connected to the motor (13). The speed of the motor (13) can be controlled to drive the side disc (122) to rotate. The water tank bracket (14) is located on both sides of the supporting main frame (1) near one end of the main wheel (12) and extends upward to the top of the main wheel (12). A water tank body (2) is fixedly placed on the top of the water tank bracket (14). The water tank body (2) is divided into a liquid storage part (21) located on both sides and a liquid pump part (22) in the middle of the top. An eccentric shaft rod (124) is fixedly mounted on the outer side of the side disc (122). The liquid pumping section (22) comprises pressure-boosting chambers (221) on both sides and a nozzle chamber (222) in the middle. A one-way valve (224) is provided on one side of the pressure-boosting chamber (221) and is connected to the liquid storage section (21) via the one-way valve (224). The one-way valve (224) is connected in a direction from the liquid storage section (21) to the liquid pumping section (22). The front side of the nozzle chamber (222) is fixedly connected to a spraying nozzle (23). A one-way valve (224) is provided between the pressure-boosting chamber (221) and the nozzle chamber (222). The one-way valve (224) is connected in a direction from the pressure-boosting chamber (221) to the nozzle chamber (222). 221), a booster piston cylinder (3) is installed in the booster chamber (221), the top of the booster piston cylinder (3) is connected to the liquid storage part (21), the bottom of the booster piston cylinder (3) extends to the bottom of the pump liquid part (22), the middle of the booster piston cylinder (3) is movably sleeved with a booster piston (32), the bottom of the booster piston (32) is movably connected with a connecting shaft (33), the other end of the connecting shaft (33) is movably sleeved on the eccentric shaft (124), and the booster piston (32) is driven to move back and forth in the booster piston cylinder (3) through the travel and rotation of the main wheel (12).
2. A growth regulator spraying device for rice and rapeseed seedlings in saline-alkali land according to claim 1, characterized in that: A stirring shaft (211) is movably arranged in the middle of the liquid storage portion (21) coaxially with the wheel axle of the main wheel (12); a stirring fan blade (212) is fixedly connected in the middle of the (2211); a fan blade linkage block (213) is fixedly installed on the inner side of the stirring fan blade (212); and opposite magnetic blocks are provided on the fan blade linkage block (213) and the eccentric shaft rod (124), so that when the side plate (122) rotates, the eccentric shaft rod (124) drives the fan blade linkage block (213) to rotate coaxially, thereby stirring the growth regulator in the liquid storage portion (21).
3. A growth regulator spraying device for rice and rapeseed seedlings in saline-alkali land according to claim 1 or 2, characterized in that: The upper side of the booster piston cylinder (3) is a piston cylinder transverse axis (31) located inside the stirring shaft (211), and the lower end extends to the bottom of the stirring shaft (211). Both sides of the inner wall of the stirring shaft (211) are provided with multi-step limit grooves (44). Grooves are provided at both ends of the piston cylinder transverse axis (31), and a clamping block spring (312) is fixedly installed in the groove. The tail end of the clamping block spring (312) is fixedly connected to the limit clamping block (311). The limit clamping block (311) extends outward from the piston cylinder transverse axis (31) and is clamped to the piston cylinder transverse axis (31). The water tank body (2) is fixed to the multi-step limit groove (44), a movable cylinder (43) is fixedly provided on the outer side of the water tank body (2) near the multi-step limit groove (44), a limit magnetic block (42) is movably sleeved in the movable cylinder (43), an opposite magnetic block is provided between the limit magnetic block (42) and the outer end of the limit clamping block (311), a floating plate connecting rod (41) is fixedly connected to the bottom of the limit magnetic block (42), and the bottoms of the two floating plate connecting rods (41) on the same side are fixedly connected to the same water level floating plate (4).
4. The growth regulator spraying device for rice and rapeseed seedlings in saline-alkali land according to claim 1, characterized in that: The outer edge of the main wheel (12) is configured as a "T"-shaped cross-section, and a mud scraper (121) is fixedly mounted on the lower side of the rear end of the wheel groove.
5. The growth regulator spraying device for rice and rapeseed seedlings in saline-alkali land according to claim 1, characterized in that: The water tank body (2) is in an inverted "U" shape, and a liquid replenishing port (24) is provided on the top of the water tank body (2).
6. The growth regulator spraying device for rice and rapeseed seedlings in saline-alkali land according to claim 1, characterized in that: The water tank bracket (14) is in an inverted "U" shape, and the height of the water tank bracket (14) is higher than the highest point of the main wheel (12).
7. The growth regulator spraying device for rice and rapeseed seedlings in saline-alkali land according to claim 1, characterized in that: A liquid guide tube (223) is provided in the liquid storage part (21) at the connection point between the liquid storage part (21) and the pressurizing chamber (221), and is connected to the bottom of the liquid storage part (21). A vent (2231) communicating with the outside of the top of the water tank body (2) is provided at the top of the liquid guide tube (223), and a sealing plug is provided at the top of the liquid guide tube (223).
8. The growth regulator spraying device for rice and rapeseed seedlings in saline-alkali land according to claim 3, characterized in that: The booster piston cylinder (3) is movably sleeved in a T-shape to the bottom opening of the liquid storage portion (21), and a sealing rubber ring is installed at the opening.
9. The growth regulator spraying device for rice and rapeseed seedlings in saline-alkali land according to claim 3, characterized in that: The water level floating plate (4) is located at the bottom of the liquid storage portion (21) and does not contact the bottom of the liquid storage portion (21).