阅读说明：本技术 一种便于携带的水稻种植用施肥装置 (fertilizer injection unit for rice planting convenient to carry ) 是由 章云 于 2019-09-11 设计创作，主要内容包括：本发明公开了一种便于携带的水稻种植用施肥装置,包括箱体、摇把、安装轴和箱盖,所述箱体的内侧安装有腔体管,且腔体管的内侧安装有单向阀板,所述腔体管的上方安装有竖筒,且竖筒的内侧开设有竖槽,所述支杆的下方设置有复位弹簧,且复位弹簧位于竖槽的内侧,并且支杆通过复位弹簧与竖筒相互连接,所述箱体的外侧设置有背带。该便于携带的水稻种植用施肥装置,通过手动旋转摇把带动驱动轮进行顺时针旋转,而顺时针旋转的驱动轮则通过连接齿块周期性推动驱动杆向下进行运动,而此时的密封板则带动密封垫通过支杆以及竖槽在竖筒的内侧向下进行滑动,从而密封板以及密封垫推动空气注入腔体管内,方便腔体管内的肥料药液排出进行施肥。(The invention discloses a portable fertilizer applying device for rice planting, which comprises a box body, a crank, an installation shaft and a box cover, wherein a cavity pipe is installed on the inner side of the box body, a one-way valve plate is installed on the inner side of the cavity pipe, a vertical cylinder is installed above the cavity pipe, a vertical groove is formed in the inner side of the vertical cylinder, a return spring is arranged below a supporting rod and is positioned on the inner side of the vertical groove, the supporting rod is connected with the vertical cylinder through the return spring, and straps are arranged on the outer side of the box body. This fertilizer injection unit is used in rice planting convenient to carry drives the drive wheel through the hand-operated rotation crank and carries out clockwise rotation, and clockwise rotation's drive wheel then promotes the actuating lever through connecting the tooth piece periodicity and moves downwards, and the closing plate at this moment then drives sealed pad and slides downwards in the inboard of erecting a section of thick bamboo through branch and perpendicular groove to closing plate and sealed pad promote that the air is injected into the cavity intraductally, make things convenient for the intraductal fertilizer liquid medicine of cavity to discharge and fertilize.)

1. the utility model provides a fertilizer injection unit for rice planting convenient to carry, includes box (1), crank (13), installation axle (16) and case lid (24), its characterized in that: the improved structure of the valve is characterized in that a cavity pipe (2) is installed on the inner side of the box body (1), a one-way valve plate (3) is installed on the inner side of the cavity pipe (2), a vertical cylinder (4) is installed above the cavity pipe (2), a vertical groove (5) is formed in the inner side of the vertical cylinder (4), a sealing plate (6) is arranged on the inner side of the vertical cylinder (4), a sealing gasket (7) is installed below the sealing plate (6), a support rod (8) is installed on the outer side of the sealing plate (6), the support rod (8) is located on the inner side of the vertical groove (5), the sealing plate (6) is connected with the vertical cylinder (4) through the support rod (8) and the vertical groove (5), a reset spring (9) is arranged below the support rod (8), the reset spring (9) is located on the inner side of the vertical groove (5), the support rod (8) is connected with the vertical cylinder (4) through the reset spring (9), a driving, and the outside of actuating lever (10) is installed and is connected tooth piece (11), the outside of actuating lever (10) is provided with drive wheel (12), and actuating lever (10) is through connecting tooth piece (11) and drive wheel (12) interconnect, and drive wheel (12) are through crank (13) and box (1) interconnect, connecting gear (14) is installed to the top of drive wheel (12), and the outside of connecting gear (14) is provided with first drive wheel (15), the inboard of first drive wheel (15) is provided with installation axle (16), and connecting gear (14) and first drive wheel (15) all through installation axle (16) and box (1) interconnect, connecting gear (14) is last to have seted up mounting groove (17), and the inboard of mounting groove (17) is provided with spacing tooth piece (18), be provided with vertical axis (19) on spacing tooth piece (18), and a limit tooth block (18) is connected with a connecting gear (14) through a vertical shaft (19), a connecting spring (20) is installed on the limit tooth block (18), the connecting spring (20) is located on the inner side of the installation groove (17), an opening is formed in the surface of a first driving wheel (15), a driving belt (21) is arranged on the inner side of the first driving wheel (15), the first driving wheel (15) is connected with a second driving wheel (22) through the driving belt (21), the second driving wheel (22) is located above the first driving wheel (15), a sleeve wheel (23) is arranged on the outer side of the second driving wheel (22), the second driving wheel (22) and the sleeve wheel (23) are also connected with the box body (1) through an installation shaft (16), a box cover (24) is arranged above the box body (1), and a material storage cavity (25) is arranged inside the box cover (24), and the bottom of the storage cavity (25) is provided with a discharge hole (26), the bottom of the box cover (24) is provided with a transverse groove (27), the inner side of the transverse groove (27) is provided with a partition plate (28), the partition plate (28) is provided with a through hole (29), the right end of the partition plate (28) is provided with a traction spring (30), the partition plate (28) is connected with the box cover (24) through the traction spring (30), and the outer side of the box body (1) is provided with a strap (31).

2. The portable fertilizer device for rice planting according to claim 1, wherein: the vertical cylinder (4) is fixedly connected with the cavity pipe (2), and the cavity pipe (2) is overlooked to be of an L-shaped structure.

3. the portable fertilizer device for rice planting according to claim 1, wherein: the sealing plate (6) and the vertical cylinder (4) form a sliding structure through the supporting rod (8) and the vertical groove (5), and the supporting rod (8) and the vertical groove (5) form a telescopic structure through the reset spring (9).

4. The portable fertilizer device for rice planting according to claim 1, wherein: the driving rod (10) is of an n-shaped structure, the driving rod (10) is fixedly connected with the sealing plate (6), the right end of the driving rod (10) is located on the inner side of the vertical cylinder (4), and the left end of the driving rod (10) is located on the outer side of the vertical cylinder (4).

5. the portable fertilizer device for rice planting according to claim 1, wherein: the connecting tooth blocks (11) are distributed on the left side surface of the driving rod (10) at equal intervals, the connecting tooth blocks (11) are distributed on the driving wheel (12) in a 180-degree fan shape, and the driving wheel (12) is respectively meshed and connected with the driving rod (10) and the connecting gear (14) through the connecting tooth blocks (11).

6. the portable fertilizer device for rice planting according to claim 1, wherein: connecting gear (14) and first drive wheel (15) all constitute revolution mechanic with installation axle (16), and connecting gear (14) equidistance distributes and has mounting groove (17).

7. The portable fertilizer device for rice planting according to claim 1, wherein: the limiting tooth block (18) and the connecting gear (14) form a rotating structure through a vertical shaft (19), and the limiting tooth block (18) and the mounting groove (17) form a telescopic structure through a connecting spring (20).

8. The portable fertilizer device for rice planting according to claim 1, wherein: the sleeve wheel (23) is of a water-drop-shaped structure, the sleeve wheel (23) and the second driving wheel (22) are fixedly connected with the mounting shaft (16), and the sleeve wheel (23) and the second driving wheel (22) form a rotating structure with the box body (1) through the mounting shaft (16).

9. the portable fertilizer device for rice planting according to claim 1, wherein: the partition plate (28) is of an L-shaped structure which is transversely arranged, the partition plate (28) and the box cover (24) form a sliding structure through the transverse groove (27), and the partition plate (28) and the traction spring (30) form a telescopic structure.

Technical Field

The invention relates to the technical field of rice planting, in particular to a portable fertilizer applying device for rice planting.

Background

Rice planting is a common agricultural planting activity, and the rice is planted in more moisture mostly, in comparatively muddy soil, through a period of growth, just can knot the ear of rice on the rice, and with the ear of rice after handling alright obtain people's rice grain staple food, therefore the rice quantity that produces and obtain depends on the quantity of ear of rice and the plump degree of paddy, for the growth condition and the rice output of guarantee ear of rice, exert water-soluble fertilizer to it at rice growth in-process usually, be used for guaranteeing the growth condition of rice, but current rice fertilization has following problem:

1. The prior fertilizing device is inconvenient to walk in muddy paddy field and carry about by workers, so that the normal fertilizing condition of rice is influenced, and the normal growth of the rice and the yield of the rice are influenced;

2. Inconvenient ration is put in fertilizer and is dissolved the use in the moisture, and fertilizer is put in too much or too little and can't reach the growth demand of rice, and the artifical fertilizer that puts in of tradition leads to fertilizer to put in the precision inaccurate.

Disclosure of Invention

The invention aims to provide a portable fertilizer applying device for rice planting, and aims to solve the problems that the conventional fertilizer applying device in the background art is inconvenient to walk in a muddy paddy field and carry about and use by workers, so that the normal fertilizer applying condition of rice is influenced, the normal growth of the rice and the yield of rice are influenced, the fertilizer is inconvenient to be quantitatively put into water for dissolving and use, the growth requirement of the rice cannot be met when too much or too little fertilizer is put into the water, and the fertilizer putting precision is inaccurate when the fertilizer is manually put into the rice in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a portable fertilizer application device for rice planting comprises a box body, a crank, an installation shaft and a box cover, wherein a cavity pipe is installed on the inner side of the box body, a one-way valve plate is installed on the inner side of the cavity pipe, a vertical cylinder is installed above the cavity pipe, a vertical groove is formed in the inner side of the vertical cylinder, a sealing plate is arranged on the inner side of the vertical cylinder, a sealing gasket is installed below the sealing plate, a supporting rod is installed on the outer side of the sealing plate and located on the inner side of the vertical groove, the sealing plate is connected with the vertical cylinder through the supporting rod and the vertical groove, a return spring is arranged below the supporting rod and located on the inner side of the vertical groove, the supporting rod is connected with the vertical cylinder through the return spring, a driving rod is installed above the sealing plate, a connecting tooth block is installed on the outer side of the driving rod, a driving wheel is arranged on the outer side, and the driving wheel passes through the crank and is interconnected with the box, connecting gear is installed to the top of driving wheel, and the outside of connecting gear is provided with first drive wheel, the inboard of first drive wheel is provided with the installation axle, and connecting gear and first drive wheel all through installation axle and box interconnect, the last mounting groove that has seted up of connecting gear, and the inboard of mounting groove is provided with spacing block gear, be provided with the vertical axis on the spacing block gear, and spacing block gear is through vertical axis and connecting gear interconnect, install coupling spring on the spacing block gear, and coupling spring is located the inboard of mounting groove, first drive wheel surface is provided with the opening, and the inboard of first drive wheel is provided with the drive belt, first drive wheel passes through drive belt and second drive wheel interconnect, and the second drive wheel is located the top of first drive wheel, the outside of second drive wheel is provided with the running wheel, and the second drive wheel and the sleeve wheel are also connected with the box body through an installation shaft, a box cover is arranged above the box body, a storage cavity is arranged inside the box cover, a discharge hole is formed in the bottom of the storage cavity, a transverse groove is formed in the bottom of the box cover, a partition plate is arranged on the inner side of the transverse groove, a through hole is formed in the partition plate, a traction spring is installed at the right end of the partition plate, the partition plate is connected with the box cover through the traction spring, and straps are arranged on the outer side of the box body.

Preferably, the vertical cylinder is fixedly connected with the cavity pipe, and the cavity pipe is in an L-shaped structure in a plan view.

preferably, the sealing plate forms a sliding structure with the vertical cylinder through the supporting rod and the vertical groove, and the supporting rod forms a telescopic structure with the vertical groove through the return spring.

Preferably, the driving rod is of an n-shaped structure, the driving rod is fixedly connected with the sealing plate, the right end of the driving rod is located on the inner side of the vertical cylinder, and the left end of the driving rod is located on the outer side of the vertical cylinder.

preferably, the connecting tooth blocks are distributed on the left side surface of the driving rod at equal intervals, the connecting tooth blocks are distributed on the driving wheel in a 180-degree sector shape, and the driving wheel is respectively in meshed connection with the driving rod and the connecting gear through the connecting tooth blocks.

preferably, the connecting gear and the first driving wheel form a rotating structure with the mounting shaft, and mounting grooves are distributed on the connecting gear at equal angles.

preferably, the limiting tooth block and the connecting gear form a rotating structure through a vertical shaft, and the limiting tooth block and the mounting groove form a telescopic structure through a connecting spring.

preferably, the sleeve wheel is of a water-drop-shaped structure, the sleeve wheel and the second driving wheel are fixedly connected with the mounting shaft, and the sleeve wheel and the second driving wheel form a rotating structure with the box body through the mounting shaft.

Preferably, the partition board is in an L-shaped structure which is transversely placed, the partition board and the box cover form a sliding structure through the transverse groove, and the partition board and the traction spring form a telescopic structure.

Compared with the prior art, the invention has the beneficial effects that: the portable fertilizer applying device for rice planting,

1. The driving wheel is driven to rotate clockwise by manually rotating the crank, the driving wheel rotating clockwise periodically pushes the driving rod to move downwards through the connecting tooth block, the driving rod at the moment drives the sealing plate to synchronously move downwards on the inner side of the vertical cylinder under the pushing of the driving wheel, and the sealing plate at the moment drives the sealing gasket to slide downwards on the inner side of the vertical cylinder through the supporting rod and the vertical groove, so that the sealing plate and the sealing gasket push air to be injected into the cavity pipe, and fertilizer liquid medicine in the cavity pipe is conveniently discharged for fertilizing;

2. When the crank drives the driving wheel to rotate in the opposite direction, the driving wheel drives the connecting gear to rotate, and the rotating connecting gear drives the first driving wheel to rotate synchronously through the limiting tooth block and the opening in the first driving wheel, so that the first driving wheel can drive the second driving wheel to rotate synchronously through the driving belt;

3. When the second drive wheel carries out rotation work, the second drive wheel drives the running gear through installation axle and carries out synchronous revolution motion work, rotatory running gear then promotes the baffle right this moment and carries out sliding motion at the cross slot, perforation and discharge gate alignment on the baffle, thereby make things convenient for fertilizer in the storage cavity to dissolve the use through perforation and discharge gate put in to the moisture in the box, when the running gear is rotatory to breaking away from to be connected with the baffle, traction spring then promotes the baffle and resets, thereby the baffle is accomplished the discharge gate and is sealed, make things convenient for fertilizer to carry out the ration and put in.

Drawings

FIG. 1 is a schematic side sectional view of the present invention;

FIG. 2 is a schematic top view of the chamber tube of the present invention;

FIG. 3 is a schematic view of the connection structure of the shaft tube and the sealing plate according to the present invention;

FIG. 4 is a schematic view of the connection structure between the connecting gear and the first driving wheel according to the present invention;

FIG. 5 is a schematic view of the connecting gear of the present invention in elevation;

FIG. 6 is a front view of the first driving wheel of the present invention;

FIG. 7 is a schematic view of a connecting gear of the present invention in a top-down view.

In the figure: 1. a box body; 2. a cavity tube; 3. a one-way valve plate; 4. a vertical cylinder; 5. a vertical slot; 6. a sealing plate; 7. a gasket; 8. a strut; 9. a return spring; 10. a drive rod; 11. connecting the tooth blocks; 12. a drive wheel; 13. a crank; 14. a connecting gear; 15. a first drive pulley; 16. installing a shaft; 17. mounting grooves; 18. a limit tooth block; 19. a vertical axis; 20. a connecting spring; 21. a transmission belt; 22. a second transmission wheel; 23. sleeving a wheel; 24. a box cover; 25. a material storage cavity; 26. a discharge port; 27. a transverse groove; 28. a partition plate; 29. perforating; 30. a traction spring; 31. a harness.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

referring to fig. 1-7, the present invention provides a technical solution: a portable fertilizer application device for rice planting comprises a box body 1, a crank 13, an installation shaft 16 and a box cover 24, wherein a cavity pipe 2 is installed on the inner side of the box body 1, a one-way valve plate 3 is installed on the inner side of the cavity pipe 2, a vertical barrel 4 is installed above the cavity pipe 2, a vertical groove 5 is formed in the inner side of the vertical barrel 4, a sealing plate 6 is arranged on the inner side of the vertical barrel 4, a sealing gasket 7 is installed below the sealing plate 6, a support rod 8 is installed on the outer side of the sealing plate 6, the support rod 8 is located on the inner side of the vertical groove 5, the sealing plate 6 is connected with the vertical barrel 4 through the support rod 8 and the vertical groove 5, a reset spring 9 is arranged below the support rod 8, the reset spring 9 is located on the inner side of the vertical groove 5, the support rod 8 is connected with the vertical barrel 4 through the reset spring 9, a drive rod 10 is installed, a driving wheel 12 is arranged on the outer side of the driving rod 10, the driving rod 10 is connected with the driving wheel 12 through a connecting gear block 11, the driving wheel 12 is connected with the box body 1 through a crank 13, a connecting gear 14 is arranged above the driving wheel 12, a first driving wheel 15 is arranged on the outer side of the connecting gear 14, an installation shaft 16 is arranged on the inner side of the first driving wheel 15, the connecting gear 14 and the first driving wheel 15 are both connected with the box body 1 through the installation shaft 16, a mounting groove 17 is formed in the connecting gear 14, a limiting gear block 18 is arranged on the inner side of the mounting groove 17, a vertical shaft 19 is arranged on the limiting gear block 18, the limiting gear block 18 is connected with the connecting gear 14 through the vertical shaft 19, a connecting spring 20 is arranged on the limiting gear block 18, the connecting spring 20 is positioned on the inner side of the mounting groove 17, an opening is arranged on the surface of the first driving wheel, first drive wheel 15 passes through drive belt 21 and second drive wheel 22 interconnect, and second drive wheel 22 is located the top of first drive wheel 15, the outside of second drive wheel 22 is provided with sheave 23, and second drive wheel 22 and sheave 23 are through installation axle 16 and box 1 interconnect equally, the top of box 1 is provided with case lid 24, and the inside of case lid 24 is provided with storage cavity 25, and discharge gate 26 has been seted up to the bottom of storage cavity 25, the cross slot 27 has been seted up to the bottom of case lid 24, and the inboard of cross slot 27 is provided with baffle 28, seted up perforation 29 on the baffle 28, and the right-hand member of baffle 28 installs traction spring 30, and baffle 28 passes through traction spring 30 and box lid 24 interconnect, the outside of box 1 is provided with braces 31.

the vertical cylinder 4 and the cavity tube 2 are fixedly connected, and the cavity tube 2 is overlooked to be of an L-shaped structure, so that the vertical cylinder 4 is convenient to mount stably, and fertilizer solution is favorably discharged through the cavity tube 2;

the sealing plate 6 forms a sliding structure with the vertical cylinder 4 through the supporting rod 8 and the vertical groove 5, the supporting rod 8 forms a telescopic structure with the vertical groove 5 through the reset spring 9, the sealing plate 6 conveniently performs sliding motion on the inner side of the vertical cylinder 4 through the supporting rod 8 and the vertical groove 5, and the reset spring 9 can push the supporting rod 8 to perform sliding reset in the vertical groove 5;

The driving rod 10 is of an n-shaped structure, the driving rod 10 is fixedly connected with the sealing plate 6, the right end of the driving rod 10 is located on the inner side of the vertical cylinder 4, and the left end of the driving rod 10 is located on the outer side of the vertical cylinder 4, so that the driving rod 10 can push the sealing plate 6 to synchronously move on the inner side of the vertical cylinder 4 while the driving rod 10 moves;

The connecting tooth blocks 11 are distributed on the left side surface of the driving rod 10 at equal intervals, the connecting tooth blocks 11 are distributed on the driving wheel 12 in a 180-degree sector shape, the driving wheel 12 is respectively meshed and connected with the driving rod 10 and the connecting gear 14 through the connecting tooth blocks 11, the driving wheel 12 is convenient to push the driving rod 10 to move downwards periodically through the connecting tooth blocks 11, and therefore the movement law of the driving rod 10 is convenient to control;

The connecting gear 14 and the first driving wheel 15 form a rotating structure with the mounting shaft 16, and mounting grooves 17 are distributed on the connecting gear 14 at equal angles, so that the connecting gear 14 can rotate on the mounting shaft 16 conveniently, and meanwhile, the connecting gear 14 can push the first driving wheel 15 to rotate synchronously on the mounting shaft 16 when the connecting gear 14 rotates;

The limiting tooth block 18 and the connecting gear 14 form a rotating structure through a vertical shaft 19, the limiting tooth block 18 and the mounting groove 17 form a telescopic structure through a connecting spring 20, and the connecting spring 20 can conveniently push the limiting tooth block 18 to extend out of the mounting groove 17 to be clamped with an opening in the surface of the first driving wheel 15;

The sleeve wheel 23 is of a water-drop structure, the sleeve wheel 23 and the second transmission wheel 22 are both fixedly connected with the mounting shaft 16, and the sleeve wheel 23 and the second transmission wheel 22 both form a rotating structure with the box body 1 through the mounting shaft 16, so that the second transmission wheel 22 can drive the sleeve wheel 23 to synchronously rotate through the mounting shaft 16 while the second transmission wheel 22 rotates;

the baffle 28 is the "L" style of calligraphy structure of transversely placing, and baffle 28 constitutes sliding construction through cross slot 27 and case lid 24 to baffle 28 and traction spring 30 constitute extending structure, make things convenient for the blanket wheel 23 to carry out rotary motion while, the blanket wheel 23 can promote baffle 28 and carry out sliding motion in cross slot 27, thereby make things convenient for baffle 28 to control the discharge gate 26 of storage cavity 25 below and open or close.

The working principle is as follows: according to the figure 1, firstly, the granular fertilizer is loaded into the storage cavity 25 on the box cover 24, then the moisture is loaded into the box body 1, then the box cover 24 is covered on the box body 1, after the above operation is completed, the relevant personnel can carry and transfer the granular fertilizer by carrying the box body 1 through the straps 31, according to the figures 1 and 3, when the fertilizer needs to be added into the moisture for dilution, the crank 13 is manually driven to rotate, the rotating crank 13 drives the driving wheel 12 to rotate anticlockwise on the inner side of the box body 1, at the moment, the anticlockwise rotating driving wheel 12 pushes the connecting gear 14 to rotate clockwise on the inner side of the box body 1 through the mounting shaft 16 through the connecting gear block 11, according to the figures 4-6, at the moment, the limiting gear block 18 on the connecting gear 14 rotates and extends out of the mounting groove 17 through the vertical shaft 19 under the pushing of the connecting spring 20, the left side of the mounting groove 17 can limit the rotation amplitude of the limiting tooth block 18, so that the limiting tooth block 18 keeps an inclined state, and therefore, when the connecting gear 14 rotates clockwise, the limiting tooth block 18 is clamped into an opening in the surface of the first driving wheel 15 under the pushing of the connecting spring 20, and the connecting gear 14 rotating clockwise can drive the first driving wheel 15 to rotate clockwise synchronously;

Referring to fig. 1 and 6, as shown in fig. 1, the clockwise rotating first driving wheel 15 drives the second driving wheel 22 to synchronously rotate clockwise through the driving belt 21, at this time, the clockwise rotating second driving wheel 22 drives the sleeve wheel 23 to synchronously rotate clockwise, the sleeve wheel 23 with a drop-shaped structure pushes the lower end of the partition 28 to the right, the partition 28 slides to the right in the transverse groove 27 under the push of the sleeve wheel 23 until the through hole 29 on the partition 28 aligns with the discharge hole 26 on the storage cavity 25, at this time, the storage cavity 25 is opened, the fertilizer in the storage cavity 25 falls into the box 1 through the discharge hole 26 and the through hole 29 to be dissolved in the water for use until the sleeve wheel 23 is disconnected from the partition 28 during continuous rotation, so that the traction spring 30 pushes the partition 28 to slide to the left in the transverse groove 27, until the through hole 29 on the partition plate 28 is staggered with the discharge hole 26, the partition plate 28 seals the storage cavity 25, and the fertilizer is reasonably put in;

according to fig. 1 and 2, after fertilizer in the storage cavity 25 is put into moisture in the box 1 and is dissolved, at this time, the relevant person rotates the crank 13 in the opposite direction, so the crank 13 drives the driving wheel 12 to rotate clockwise, at this time, the driving wheel 12 drives the connecting gear 14 to rotate counterclockwise, but at this time, the limiting tooth block 18 on the connecting gear 14 retracts into the mounting groove 17 under the obstruction of the first driving wheel 15, so the connecting gear 14 rotating counterclockwise cannot drive the first driving wheel 15 to rotate counterclockwise, so the first driving wheel 15 cannot drive the second driving wheel 22 to perform trigger motion, thereby ensuring that at this time, the driving wheel 12 only drives the relevant structure of the driving rod 10 to move, according to fig. 1, when the driving wheel 12 rotates clockwise, the driving wheel 12 pushes the driving rod 10 downwards through the connecting tooth block 11 to move, the driving rod 10 moving downwards at this time can drive the sealing plate 6 and the sealing gasket 7 to slide downwards at the inner side of the vertical cylinder 4 through the supporting rod 8 and the vertical groove 5, so that air pressure is generated to extrude liquid medicine in the cavity pipe 2, the one-way valve plate 3 on the cavity pipe 2 only facilitates the filling of the liquid medicine and prevents the leakage of the liquid medicine, so the liquid medicine in the cavity pipe 2 is discharged through a water pipe at the outer side of the cavity pipe 2 under the extrusion of the air pressure to fertilize until the connecting tooth block 11 on the driving wheel 12 is disconnected with the connecting tooth block 11 on the driving rod 10, the return spring 9 pushes the supporting rod 8 to slide upwards in the vertical groove 5, so the sealing plate 6 drives the driving rod 10 to move upwards, negative pressure is formed in the cavity pipe 2 at this time, the liquid medicine in the box body 1 flows into the cavity pipe 2 through the one-way valve plate 3 to supplement, and the driving wheel 12 is convenient to push the driving rod 10 again through the connecting tooth, therefore, the fertilizer liquid medicine is convenient to spray again, and the portable fertilizer applying device for rice planting is convenient to use.

It is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the figures to facilitate a simplified description of the present invention, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered as limiting the scope of the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.