CN115024301B

CN115024301B - Pesticide spraying device for rice planting and using method thereof

Info

Publication number: CN115024301B
Application number: CN202210800184.4A
Authority: CN
Inventors: 余霞; 马文华; 项集平
Original assignee: Hunan Chuyuan Agricultural Technology Co ltd
Current assignee: Hunan Chuyuan Agricultural Technology Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2023-03-28
Anticipated expiration: 2042-07-06
Also published as: CN115024301A

Abstract

The invention relates to the technical field of pesticide spraying for paddy planting, in particular to a pesticide spraying device for paddy planting and a using method thereof. A pesticide spraying device for rice planting, includes: the device comprises a rice field moving seat, a pesticide cavity is formed in the rice field moving seat, a negative pressure plate is arranged in the pesticide cavity in a sliding manner, and a pesticide spraying mechanism is fixedly mounted on the top surface of the rice field moving seat; the muddy water drive oar rotates to connect and sets up the one end that removes the seat in the paddy field, and muddy water drive oar makes the device can be applicable to and removes in the paddy field. According to the rice field pesticide spraying device, the rice field moving seat is arranged, so that the rice field moving seat can float on muddy water in a rice field, then the muddy water is driven by the power equipment to drive the muddy water driving paddle to rotate, the device can smoothly move between the row spacing of rice plants by utilizing the generated resistance, the pesticide spraying mechanism is driven to spray pesticides, a pesticide barrel can be carried on the rice field to spray pesticides instead of manpower, the obstruction of the silt and rice seedlings in the manual pesticide spraying process is effectively avoided, and the pesticide spraying efficiency is improved.

Description

Pesticide spraying device for rice planting and using method thereof

Technical Field

The invention relates to the technical field of pesticide spraying for paddy planting, in particular to a pesticide spraying device for paddy planting and a using method thereof.

Background

In general, the rice is planted by applying pesticide once respectively 15-20 days after the transplantation of the rice seedling or 20 days after direct sowing, at the final tillering stage of the rice, at the opening stage of the rice and at the ear stage of the rice. The spraying effect is best when the pesticide is sprayed between 9-10 am or 4-6 pm in fine day, and the pesticide is not recommended to be sprayed after the water comes in the evening, so the pesticide effect is not good. If rainfall occurs within 3 hours after pesticide spraying, the pesticide needs to be sprayed again, otherwise, the pesticide effect is not obvious, when the pesticide is sprayed, a pesticide spraying device is used, large-area planting in plain areas can be carried out by using a large-scale machine, in some individual households without large-area planting, in order to reduce expenditure, the large-scale machine cannot be purchased for spraying pesticide, and most people usually carry on the back of a pesticide barrel for manual pesticide spraying;

application number is CN112400835A discloses a pesticide sprinkler for corn is planted, drive the steering drive pole through spacing slider, the steering drive pole uses and rotates as the center with the articulated department of placing mutually, the steering drive pole slides along spacing slider simultaneously, the steering drive pole drives and turns to the driving piece and be fan-shaped motion, it is fan-shaped motion to turn to the driving piece drive steering column, the liquid medicine extraction of drawing liquid pump in with the explosive barrel comes out and carries shower nozzle department along pipe and connecting pipe, the liquid medicine spills from shower nozzle department, fan-shaped motion drive connecting pipe is done at the horizontal direction to the steering column, the connecting pipe drives the shower nozzle and is fan-shaped motion, realize that the oscillating spouts the medicine and handles.

But the device has the shortcoming that the device needs the manual work to bear when using, enters into the paddy field and spreads the medicine, and along with the growth of rice seedling, the rice seedling can grow to more than one meter height, and the degree of depth of silt is between 20-35 centimeters in the paddy field in addition, leads to the manual work to bear the device and walk silt and rice seedling in the paddy field and all caused the dyskinesia to the personnel that spread the medicine for spout medicine efficiency is lower.

Disclosure of Invention

Solves the technical problem

Aiming at the defects in the prior art, the invention provides a pesticide spraying device for rice planting and a using method thereof, which can effectively solve the problem that in the prior art, people who spread pesticides are hindered to move due to the fact that silt and rice seedlings walk in a rice field by manually carrying the device on the back cause movement obstacles, so that the pesticide spraying efficiency is low.

Technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

the invention provides a pesticide spraying device for rice planting, which comprises: the device comprises a rice field moving seat, a pesticide cavity is formed in the rice field moving seat, a negative pressure plate is arranged in the pesticide cavity in a sliding mode, and a pesticide spraying mechanism is fixedly installed on the top surface of the rice field moving seat;

the muddy water driving paddle is rotatably connected with one end of the rice field moving seat, one end of the muddy water driving paddle is connected with power equipment, and the muddy water driving paddle enables the device to be suitable for moving in the rice field;

the muddy water driving paddle is characterized in that the end parts of a plurality of paddles of the muddy water driving paddle are hinged with auxiliary paddles, a threaded rod A is arranged on the inner wall of one side of each paddle on the muddy water driving paddle in a penetrating mode, the outer wall of the threaded rod A is connected with a moving block in a threaded mode, an adjusting rod is embedded into one end of the moving block, and the other end of the adjusting rod is connected with the outer wall of each auxiliary paddle in an embedded mode.

The paddy field removes the structure setting that seat one end is the camber perk, the paddy field removes a top surface and rotates to connect and set up and have two sets of supplementary poker rods at least, supplementary poker rod one end is connected and is provided with power equipment, the paddy field removes a both sides and all is symmetrical structure and rotates to connect and wear to be equipped with the loop bar, loop bar lower extreme outer wall threaded connection is provided with the sleeve, the sleeve outer wall removes a wall sliding fit setting with the paddy field, the sleeve bottom surface rotates to be connected and is provided with the universal wheel.

The muddy water drive oar both ends are all rotated and are connected and are provided with the regulating plate, the regulating plate outer wall sets up with the both ends inner wall sliding fit that the paddy field removed the seat, one of them regulating plate outer wall connection is fixed and is provided with camber rack A and camber rack B, threaded rod A's one end is connected fixedly and is provided with the drive wheel, the drive wheel sets up with camber rack A and camber rack B meshing transmission respectively.

The paddy field removes the one end inner wall of seat and is provided with drive mechanism, drive mechanism includes the gear shaft, the one end of gear shaft removes the seat inner wall with the paddy field and rotates to be connected the setting, gear shaft one end meshing is provided with horizontal rack, horizontal rack outer wall removes seat inner wall sliding fit with the paddy field and sets up, the one end of horizontal rack is passed the paddy field and is removed the seat and connect and be provided with the push rod.

One of them regulating plate one end is the slope structure and has seted up the guide slot, the guide slot inner wall sets up with push rod outer wall sliding fit.

The negative pressure plate, the fixed closing plate that is provided with of negative pressure plate peripheral outer wall connection, the fixed vertical rack that is provided with is connected to negative pressure plate one end top surface, vertical rack one end is passed the medicament intracavity wall and is extended to the outside and set up with gear shaft meshing transmission.

The paddy field removes the one end that the seat is located muddy water drive oar and wears to be equipped with adjustment mechanism, adjustment mechanism includes the guide bar, guide bar one end outer wall and muddy water drive oar outer wall friction contact, the guide bar other end passes through spring and paddy field and removes a flexible connection setting, the fixed regulation seat that is provided with is connected to the guide bar other end, the wave-shaped groove has been seted up to the regulation seat.

Medicine spraying mechanism includes the dead lever of fixed mounting on the paddy field removes the seat, the central symmetry rotation connection is provided with two shower nozzles around the dead lever upper end is, two be connected fixedly the setting through the output of bellows and pump body between the shower nozzle, the push-and-pull rod is worn to be equipped with in the middle part of the dead lever slip, the bulge sliding contact on push-and-pull rod lower extreme outer wall and the regulation seat, the upper end inner wall and the shower nozzle outer wall sliding contact of push-and-pull rod.

The utility model provides a pesticide sprinkler's application method for corn is planted, includes preparation work, injects proper amount water medicine mixing liquid into the medicament intracavity, then places the device between two lines of rice, then utilizes the pump body to pump the medicament and carry out the pesticide spraying to shower nozzle department, then power equipment can drive muddy water drive oar and rotate to drive arrangement removes in the paddy field, carries out the pesticide spraying of different positions.

Advantageous effects

Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:

1. according to the invention, the rice field moving seat is arranged, so that the rice field moving seat can float on muddy water in a rice field, the device is placed between plant-row distances of rice, then the muddy water driving paddle is driven by power equipment to rotate, blades of the muddy water driving paddle can be inserted into the muddy water, the device can smoothly move between the plant-row distances of the rice by utilizing the generated resistance, so that the pesticide spraying mechanism is driven to spray pesticides, the pesticide spraying device can replace a manual carrying pesticide bucket to spray pesticides, the obstruction of silt and rice seedlings in manual pesticide spraying is effectively avoided, and the pesticide spraying efficiency is improved.

2. According to the invention, the auxiliary paddle is arranged, so that the transmission wheel can drive the connected threaded rod A to rotate under the driving of the arc-shaped rack B, the threaded rod A drives the connected moving block to move, the rotation angle of the auxiliary paddle connected with the adjusting rod is driven, an angle is formed between the auxiliary paddle and the paddle on the muddy water driving paddle, and when the auxiliary paddle with the angle enters muddy water, the resistance generated by the muddy water driving paddle can be further improved, so that the muddy water driving paddle can provide a larger driving force, and the device can move in the muddy water more laborsavingly.

3. According to the invention, the negative pressure plate is arranged, when the amount of the medicament in the medicament cavity is less and less, the negative pressure plate moves downwards to drive the vertical rack to move, the vertical rack drives the transverse rack meshed with the gear shaft to move, the push rod is driven to move through the transverse rack, the adjusting plate provided with the inclined guide groove is driven to move downwards at the moment, and the muddy water driving paddle is driven to move downwards, so that when the amount of the medicament is reduced, the weight of the device is reduced, the muddy water can rise, the muddy water driving paddle which moves downwards can always keep full contact with muddy water, and the driving effect cannot be influenced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic view of the overall structure of the present invention as it moves;

FIG. 2 is a schematic view showing the movement of the entire structure of the present invention in the paddy field;

FIG. 3 is a schematic expanded view, partly in section, of the structure of the present invention;

FIG. 4 is a schematic view of the structure of the mud-driven paddle of the present invention;

FIG. 5 is a schematic view of the transmission mechanism and the adjustment plate of the present invention;

FIG. 6 is a schematic view of the structure of the negative pressure plate of the present invention;

FIG. 7 is a schematic view of the guide bar of the present invention;

fig. 8 is a schematic view of the spraying mechanism of the present invention.

The reference numerals in the drawings represent: 1. a rice field moving seat; 2. a negative pressure plate; 3. a pesticide spraying mechanism; 4. the muddy water drives the oar; 5. an adjusting plate; 6. a transmission mechanism; 7. a guide bar; 101. an auxiliary poke rod; 102. a loop bar; 103. a sleeve; 201. a sealing plate; 202. a vertical rack; 301. a spray head; 302. a push-pull rod; 401. an auxiliary paddle; 402. a threaded rod A; 403. a moving block; 404. adjusting a rod; 405. a driving wheel; 501. an arc-shaped rack A; 502. an arc-shaped rack B; 503. a guide groove; 601. a gear shaft; 602. a transverse rack; 603. a push rod; 701. a spring; 702. an adjusting seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Example (b): referring to FIGS. 1-8;

a pesticide spraying device for rice planting, includes: the device comprises a rice field moving seat 1, a pesticide cavity is formed in the rice field moving seat 1, a negative pressure plate 2 is arranged in the pesticide cavity in a sliding mode, and a pesticide spraying mechanism 3 is fixedly mounted on the top surface of the rice field moving seat 1;

the muddy water driving paddle 4 is rotatably connected with one end of the paddy field moving seat 1, one end of the muddy water driving paddle 4 is connected with power equipment, and the muddy water driving paddle 4 enables the device to be suitable for moving in the paddy field;

the end parts of the plurality of blades of the muddy water driving paddle 4 are all hinged with auxiliary blades 401, a threaded rod A402 penetrates through the inner wall of one side of the blade on the muddy water driving paddle 4, a moving block 403 is arranged on the outer wall of the threaded rod A402 in a threaded connection mode, an adjusting rod 404 is embedded in one end of the moving block 403, and the other end of the adjusting rod 404 is embedded in the outer wall of the auxiliary blade 401 and connected with the same. The two ends of the adjusting rod 404 are arranged in a spherical structure, so that the adjusting rod 404 can realize a large-scale rotation effect.

Specifically, the paddy field removes the structure setting that 1 one end of seat is the arc type perk, and the paddy field removes 1 top surface of seat and rotates to connect and set up and have two sets of supplementary poker bars 101 at least, and supplementary poker bar 101 one end is connected and is provided with power equipment, and the paddy field removes 1 both sides and all is symmetrical structure and rotates to connect and wear to be equipped with loop bar 102, and loop bar 102 lower extreme outer wall threaded connection is provided with sleeve 103, and sleeve 103 outer wall removes 1 inner wall sliding fit setting with the paddy field, and sleeve 103 bottom surface rotates to be connected and is provided with the universal wheel. The paddy field removes 1 one end of seat and is the structure setting of arc type perk, can be so that can effectual reduction frictional force at the removal in-process.

Furthermore, both ends of the muddy water driving paddle 4 are rotatably connected with adjusting plates 5, the outer walls of the adjusting plates 5 are arranged in sliding fit with the inner walls of both ends of the paddy field moving seat 1, the outer wall of one of the adjusting plates 5 is fixedly connected with an arc-shaped rack A501 and an arc-shaped rack B502, one end of the threaded rod A402 is fixedly connected with a transmission wheel 405, and the transmission wheel 405 is respectively in meshing transmission with the arc-shaped rack A501 and the arc-shaped rack B502. The arc-shaped rack A501 and the arc-shaped rack B502 realize automatic adjustment of the rotation angle of the auxiliary blade 401.

Still further, the one end inner wall that the paddy field removed seat 1 is provided with drive mechanism 6, drive mechanism 6 includes gear shaft 601, the one end of gear shaft 601 and the paddy field removed the seat 1 inner wall and rotate to be connected the setting, the meshing of gear shaft 601 one end is provided with horizontal rack 602, horizontal rack 602 outer wall and paddy field removed the seat 1 inner wall sliding fit setting, the one end of horizontal rack 602 passes the paddy field and removes seat 1 and connect and be provided with push rod 603. The transmission mechanism 6 realizes the function of automatically adjusting the position of the muddy water driving paddle 4.

Furthermore, one end of one of the adjusting plates 5 is provided with a guide groove 503 in an inclined structure, and the inner wall of the guide groove 503 is slidably matched with the outer wall of the push rod 603.

Furthermore, a sealing plate 201 is fixedly connected to the peripheral outer wall of the negative pressure plate 2, a vertical rack 202 is fixedly connected to the top surface of one end of the negative pressure plate 2, and one end of the vertical rack 202 penetrates through the inner wall of the medicament cavity to extend to the outside and is in meshing transmission with the gear shaft 601. The sealing plate 201 improves the sealing effect by increasing the contact area.

In addition, adjustment mechanism is worn to be equipped with by rice field movable seat 1 one end that is located muddy water drive oar 4, and adjustment mechanism includes

guide bar

7, 7 one end outer walls of guide bar and muddy water drive oar 4 outer wall friction contact, and the guide bar 7 other end passes through spring 701 and rice field movable seat 1 elastic connection setting, and the guide bar 7 other end is connected fixedly and is provided with and adjust seat 702, adjusts seat 702 and has seted up the wave-shaped groove. The wave-shaped groove can realize that the push-pull rod 302 is adjusted to move up and down, so that the push-pull rod 302 can drive the two spray heads 301 to swing up and down, and rice seedlings close to the lower part of the spray heads 301 can be sprayed with pesticide.

In addition, spout medicine mechanism 3 and include the dead lever of fixed mounting on the paddy field removes seat 1, the central symmetry rotation connection is provided with two shower nozzles 301 around the dead lever upper end is, is connected fixedly the setting through the output of bellows and pump body between two shower nozzles 301, and the push-and-pull rod 302 is worn to be equipped with in the dead lever middle part slip, and the wave-shaped groove sliding contact on push-and-pull rod 302 lower extreme outer wall and the regulation seat 702, the upper end inner wall and the shower nozzle 301 outer wall sliding contact of push-and-pull rod 302.

On the basis of the scheme, the invention also provides a using method of the pesticide spraying device for rice planting, which comprises the steps of preparing, injecting a proper amount of water-medicine mixed liquid into the medicine cavity, placing the device between two rows of rice, sucking the medicine to the spray head 301 by using the pump body for pesticide spraying, driving the muddy water driving paddle 4 to rotate by the power equipment, and thus driving the device to move in the rice field for pesticide spraying at different positions.

When pesticide is required to be sprayed in the ear stage of rice, prepared pesticide water can be injected into a pesticide cavity on the rice field moving seat 1, then the pushing device moves to a farmland, and the sleeve rods 102 drive the sleeve 103 in threaded connection to move upwards by respectively rotating the sleeve rods 102, so that the connected universal wheels can be retracted into the rice field moving seat 1;

then the device is placed in the space between the rice and the paddy, the paddy field moving seat 1 floats on the water surface, then the pump body can be used for sucking the medicament in the medicament cavity into the spray head 301 for spraying the medicament, and at the moment, the power equipment can be used for driving the connected muddy water driving paddle 4 to rotate, so that the muddy water driving paddle 4 is inserted into the muddy water, the reaction force is generated, and the device can be driven to move in the paddy field for spraying the medicament;

when the muddy water driving paddle 4 rotates, when one of the auxiliary paddles 401 rotates to the upper side, one of the driving wheels 405 is meshed with the arc-shaped rack B502, so that the driving wheel 405 rotates to drive the connected threaded rod A402 to rotate, the threaded rod A402 can drive the moving block 403 which is in threaded connection with the moving block to move, the moving block 403 can pull the adjusting rod 404, the adjusting rod 404 can drive the connected auxiliary paddle 401 to adjust the angle, and the muddy water driving paddle 4 connected with the bent auxiliary paddle 401 can generate larger driving force when being inserted into muddy water to drive the driving device to move;

when the bent auxiliary paddle 401 rotates to the lower side, the driving wheel 405 is meshed with the arc-shaped rack A501, so that the driving wheel 405 drives the threaded rod A402 to rotate reversely, the moving block 403 drives the auxiliary paddle 401 connected with the adjusting rod 404 to rotate, the paddle of the connected muddy water driving paddle 4 is leveled, muddy water on the auxiliary paddle 401 can quickly slide out at the moment, the muddy water is prevented from wasting power on the auxiliary paddle 401, the muddy water can be in contact with the guide rod 7 when the muddy water driving paddle 4 rotates, the guide rod 7 is extruded, the guide rod 7 drives the adjusting seat 702 connected with the guide rod 7 to move, and the wavy groove in the adjusting seat 702 can force the push-pull rod 302 to move up and down at the moment, so that the spray head 301 is driven to swing up and down, and rice seedlings below the spray head 301 can be sprayed;

when the device moves, the power equipment can be utilized to drive the connected auxiliary poke rod 101 to rotate, and then the auxiliary poke rod 101 can be contacted with the outer wall of the lower end of a rice seedling plant, so that a reaction force is generated, and the function of providing an auxiliary pushing force can be achieved;

along with the medicament blowout in the medicament intracavity, negative pressure plate 2 can slowly move down, then drive the vertical rack 202 of connection and move, vertical rack 202 can drive the horizontal rack 602 of gear shaft 601 meshing and move, thereby drive push rod 603 through horizontal rack 602 and move, can drive the regulating plate 5 of seting up the guide slot 503 of slope and move down this moment, thereby can drive muddy water drive oar 4 and move down, thereby when making the medicament reduce, device weight reduces, the circumstances that can rise can appear, and muddy water drive oar 4 that slowly moves down this moment can remain the abundant contact between with the muddy water throughout, can not influence the drive effect.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pesticide sprinkler for rice is planted which characterized in that includes: the rice field moving seat (1), a medicament cavity is formed in the rice field moving seat (1), a negative pressure plate (2) is arranged in the medicament cavity in a sliding mode, and a pesticide spraying mechanism (3) is fixedly installed on the top surface of the rice field moving seat (1);

the muddy water driving paddle (4) is rotatably connected with one end of the rice field moving seat (1), one end of the muddy water driving paddle (4) is connected with power equipment, and the muddy water driving paddle (4) enables the device to be suitable for moving in a rice field;

the muddy water driving device comprises a plurality of paddle ends of a muddy water driving paddle (4), wherein auxiliary paddles (401) are hinged to the paddle ends, a threaded rod A (402) penetrates through the inner wall of one side of each paddle on the muddy water driving paddle (4), a moving block (403) is connected to the outer wall of each threaded rod A (402) in a threaded mode, an adjusting rod (404) is embedded into one end of each moving block (403), and the other end of each adjusting rod (404) is connected with the outer wall of each auxiliary paddle (401) in an embedded mode;

muddy water drive oar (4) both ends are all rotated and are connected and are provided with regulating plate (5), regulating plate (5) outer wall sets up with the both ends inner wall sliding fit that the paddy field removed seat (1), one of them regulating plate (5) outer wall connection is fixed and is provided with arc type rack A (501) and arc type rack B (502), the one end of threaded rod A (402) is connected fixedly and is provided with drive wheel (405), drive wheel (405) set up with arc type rack A (501) and arc type rack B (502) meshing transmission respectively.

2. The pesticide spraying device for rice planting as claimed in claim 1, characterized in that one end of the rice field moving seat (1) is arranged in a structure of arc-shaped tilting, at least two sets of auxiliary poking rods (101) are rotatably connected to the top surface of the rice field moving seat (1), a power device is connected to one end of each auxiliary poking rod (101), two sides of the rice field moving seat (1) are symmetrically connected to each other in a rotating manner and provided with a sleeve rod (102), the outer wall of the lower end of each sleeve rod (102) is provided with a sleeve (103) in a threaded manner, the outer wall of each sleeve (103) is arranged in a sliding fit with the inner wall of the rice field moving seat (1), and the bottom surface of each sleeve (103) is provided with a universal wheel in a rotating manner.

3. The pesticide spraying device for rice planting as claimed in claim 1, characterized in that a transmission mechanism (6) is arranged on the inner wall of one end of the rice field moving seat (1), the transmission mechanism (6) comprises a gear shaft (601), one end of the gear shaft (601) is rotatably connected with the inner wall of the rice field moving seat (1), one end of the gear shaft (601) is meshed with a transverse rack (602), the outer wall of the transverse rack (602) is slidably fitted with the inner wall of the rice field moving seat (1), and one end of the transverse rack (602) passes through the rice field moving seat (1) and is connected with a push rod (603).

4. The pesticide spraying device for rice planting according to claim 3, wherein one end of one of the adjusting plates (5) is provided with a guide groove (503) in an inclined structure, and the inner wall of the guide groove (503) is in sliding fit with the outer wall of the push rod (603).

5. The pesticide spraying device for rice planting according to claim 4, characterized in that a sealing plate (201) is fixedly connected to the peripheral outer wall of the negative pressure plate (2), a vertical rack (202) is fixedly connected to the top surface of one end of the negative pressure plate (2), and one end of the vertical rack (202) penetrates through the inner wall of the pesticide cavity to extend to the outside and is in meshed transmission with the gear shaft (601).

6. The pesticide spraying device for rice planting according to claim 1, characterized in that an adjusting mechanism is arranged at one end of the rice field moving seat (1) located at the muddy water driving paddle (4) in a penetrating manner, the adjusting mechanism comprises a guide rod (7), the outer wall of one end of the guide rod (7) is in friction contact with the outer wall of the muddy water driving paddle (4), the other end of the guide rod (7) is elastically connected with the rice field moving seat (1) through a spring (701), the other end of the guide rod (7) is fixedly connected with an adjusting seat (702), and a wave-shaped groove is formed in the adjusting seat (702).

7. The pesticide spraying device for rice planting as claimed in claim 6, wherein the pesticide spraying mechanism (3) comprises a fixed rod fixedly installed on the moving seat (1) of the rice field, the upper end of the fixed rod is provided with two spray heads (301) in a front-back central symmetrical rotating connection, the two spray heads (301) are fixedly connected with the output end of the pump body through a corrugated pipe, a push-pull rod (302) is slidably arranged in the middle of the fixed rod in a penetrating manner, the outer wall of the lower end of the push-pull rod (302) is in sliding contact with the wavy groove on the adjusting seat (702), and the inner wall of the upper end of the push-pull rod (302) is in sliding contact with the outer wall of the spray heads (301).

8. A method for using the pesticide spraying device for rice planting as claimed in any one of claims 1 to 7, comprising the steps of preparing, and injecting a proper amount of water and pesticide mixed liquid into the pesticide cavity, wherein after the preparation is finished, the device is placed between two rows of rice, then the pesticide is sprayed by sucking the pesticide to the spray head (301) by using the pump body, and then the muddy water driving paddle (4) is driven by the power equipment to rotate, so that the driving device moves in the rice field to spray the pesticide at different positions.