CN217694246U - Fertilizer injection unit is used in planting of slash pine - Google Patents

Abstract

The utility model discloses a fertilizing device for planting slash pine, which comprises a walking vehicle, wherein a fertilizing mechanism is fixedly arranged on the walking vehicle; the fertilizing mechanism comprises a quantitative component, the quantitative component is fixedly installed at the top end of the walking vehicle, and the top end of the quantitative component is fixedly connected and communicated with a fertilizer hopper; the bottom end of the quantitative component is fixedly connected and communicated with a telescopic component, and the telescopic component is positioned below the walking vehicle; the bottom end of the telescopic component is rotatably connected with a fertilizing component which is communicated with the telescopic component; the fertilizing assembly comprises a rotary disc which is rotatably connected to the bottom end of the telescopic assembly, the bottom end of the rotary disc is fixedly connected with a connecting pipe, and the bottom end of the connecting pipe is fixedly connected with a stirring head; the side wall of the connecting pipe is fixedly connected with two symmetrically arranged fertilizing pipes which are positioned above the stirring head. The utility model discloses can realize planting the accurate fertilization work in hole to single, the control of fertilization is accurate, does not have extravagantly, need not artifical loam stirring after the fertilization, and fertilization efficiency is high, and the amount of labour of the fertilization that has significantly reduced has improved the efficiency of fertilization.

Description

Fertilizer injection unit is used in planting of slash pine

Technical Field

The utility model relates to an agricultural planting technical field especially relates to a dried damp field pine is planted and is used fertilizer injection unit.

Background

The slash pine is a fast-growing evergreen arbor, is a good broad-spectrum landscaping tree species, has drought resistance, fatigue resistance and barren resistance, has good adaptability and stress resistance, is extremely widely distributed, and is suitable for planting in large pieces of soil in the south of Shandong in China; the method is also a good economic tree species, and the yield of the pine resin and the wood is high, so that the method is suitable for being used as a landscape forest and a water and soil conservation forest.

The planting of the slash pine generally comprises two processes of seedling raising and transplanting, and generally, after a nursery is raised through a seedling raising bag, seedlings are transferred to a planting place for transplanting; the special fertilizer is needed to be used when the seedling is planted in the wet field pine, when the special fertilizer is used, the planting pit is firstly dug out, then the quantitative special fertilizer is put in, the surface soil is covered to the depth of the pit by half, and then the special fertilizer and the surface soil are evenly stirred and planted. But quantitative fertilization cannot be realized in the process, the fertilization efficiency is low, and the labor amount of manual fertilization and stirring is large.

Chinese patent No. CN202020413630.2 discloses a quantitative fertilization component of a rotary tillage and fertilization integrated machine, which is provided with a quantitative blanking component and is combined with a conventional rotary cultivator to realize the effect of uniformly mixing fertilizer and soil after quantitative fertilization; however, the technical scheme is only suitable for large-area cultivation, the planting of the slash pine only needs to be independently fertilized and stirred in the planting pit, and the other positions do not need fertilization cultivation, so the technical scheme is not suitable for slash pine planting. Therefore, the problems that the existing device is not suitable, the manual fertilization efficiency is low and the labor amount is large are solved by the fertilizing device for the slash pine planting.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a loose wet land is planted and is used fertilizer injection unit to solve the problem that above-mentioned prior art exists.

In order to achieve the above purpose, the utility model provides a following scheme: the utility model provides a fertilizing device for planting slash pine, which comprises a walking vehicle, wherein a fertilizing mechanism is fixedly arranged on the walking vehicle;

the fertilizing mechanism comprises a quantitative component, the quantitative component is fixedly installed at the top end of the walking vehicle, and the top end of the quantitative component is fixedly connected and communicated with a fertilizer hopper; the bottom end of the quantitative component is fixedly connected and communicated with a telescopic component, and the telescopic component is positioned below the walking vehicle; the bottom end of the telescopic assembly is rotatably connected with a fertilization assembly, and the fertilization assembly is communicated with the telescopic assembly;

the fertilizing assembly comprises a rotary table which is rotatably connected to the bottom end of the telescopic assembly, the bottom end of the rotary table is fixedly connected with a connecting pipe, and the bottom end of the connecting pipe is fixedly connected with a stirring head; the lateral wall rigid coupling of connecting pipe has the fertilization pipe of two symmetries settings, the fertilization pipe is located the top of stirring head, the fertilization pipe with the inner chamber intercommunication of connecting pipe.

Preferably, the stirring head comprises a stirring cone fixedly connected to the bottom end of the connecting pipe, and a plurality of stirring teeth are fixedly connected to the side wall array of the stirring cone; the stirring teeth are obliquely and downwards arranged, and one end, far away from the stirring cone, of each stirring tooth is arranged corresponding to the tail end of the fertilizing pipe.

Preferably, a distributing block with a triangular section is fixedly connected to the bottom end of the inner cavity of the connecting pipe, and two sides of the distributing block are obliquely arranged towards the fertilizing pipe; two fertilizer outlet holes are formed in the side wall of the connecting pipe in a penetrating mode, and the fertilizer outlet holes are arranged corresponding to the inclined edges of the distributing block; the fertilizing pipe is communicated with the fertilizing hole.

Preferably, the fertilizing pipe is obliquely and downwards arranged, and a plurality of fertilizing holes are formed in the downwards side wall of the fertilizing pipe in a penetrating mode.

Preferably, the telescopic assembly comprises a telescopic pipe fixedly connected to the bottom end of the walking vehicle, the top end of the telescopic pipe is communicated with the quantitative assembly, the bottom end of the telescopic pipe is fixedly connected with a lifting disc, and the top end of the rotary disc is rotatably connected with the bottom end of the lifting disc; a plurality of connecting blocks are fixedly connected to the side wall of the lifting disc, and a lifting rod is fixedly connected between the top end of each connecting block and the bottom end of the walking vehicle; the lateral wall fixed mounting of lifting disk has the rotating electrical machines, the output of rotating electrical machines is downward and the rigid coupling has drive gear, drive gear with the outer wall meshing of carousel is connected.

Preferably, the bottom surface of the lifting disc is provided with a connecting groove, the top end of the rotating disc is fixedly connected with a connecting ring which is correspondingly arranged with the connecting groove, and the connecting ring is clamped in the connecting groove and is rotationally connected with the connecting groove.

Preferably, the quantitative assembly comprises a quantitative pipe fixedly mounted at the top end of the walking vehicle, the top end of the quantitative pipe is fixedly connected and communicated with the fertilizer hopper, and the bottom end of the quantitative pipe is communicated with the top end of the telescopic pipe; a quantitative shaft is rotatably connected in the quantitative pipe, a plurality of quantitative plates are vertically and fixedly connected to the side wall of the quantitative shaft, and the edges of the quantitative plates are in sliding contact with the inner cavity of the quantitative pipe; either end of the quantitative shaft penetrates through and extends out of the side wall of the quantitative pipe; the walking vehicle is fixedly provided with a quantitative motor, and an output shaft of the quantitative motor is in transmission connection with the quantitative shaft.

The utility model discloses a following technological effect: the utility model discloses a fertilizing device for planting slash pine, which is mainly used for quantitative fertilization in a planting pit in the slash pine planting process and uniform stirring of fertilizer and soil, thereby saving the process of covering and stirring after manual fertilization and improving the fertilizing efficiency; the fertilizer in the fertilizer hopper is guided into the telescopic assembly according to the set amount through the control of the quantitative assembly, so that the fertilizer application amount of each planting pit is accurately controlled, less fertilizer application is realized, and more fertilizer application is not realized; the fertilizer in the telescopic assembly enters the fertilizing assembly and then is applied to the planting pits, and the fertilizer and the soil are uniformly stirred, so that the seedling burning caused by fertilizer accumulation is prevented; the rotation of the fertilizing pipe can realize uniform fertilization in the rotation process, the stirring head downwards tunnels and turns over soil in the rotating process and uniformly stirs the turned-out soil and fertilizer, the fertilizing work of planting pits is completed, the efficiency is high, manual fertilization and stirring are not needed, the depth of the pits is reduced, and the labor intensity is reduced. The utility model discloses can realize the accurate fertilization work to single planting hole, the control of fertilization is accurate, does not have the waste, need not artifical loam stirring behind the fertilization, and fertilization efficiency is high, the amount of labour of the fertilization that has significantly reduced has improved the efficiency of fertilization.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the fertilizer apparatus for planting slash pine of the present invention;

fig. 2 is a top view of the lifting plate of the present invention;

FIG. 3 is a schematic view of the dosing assembly of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1;

FIG. 5 is a partial enlarged view of B in FIG. 1;

wherein, 1, a walking vehicle; 2. a dosing assembly; 3. a telescopic assembly; 4. a fertilizing assembly; 5. a fertilizer hopper; 11. a vehicle body; 12. a handlebar; 13. a traveling wheel; 14. a control panel; 21. a dosing tube; 22. a dosing shaft; 23. a quantitative plate; 24. a quantitative motor; 31. a telescopic pipe; 32. a lifting plate; 33. connecting blocks; 34. a lifting rod; 35. a rotating electric machine; 36. a drive gear; 37. connecting grooves; 38. a connecting ring; 41. a turntable; 42. a connecting pipe; 43. fertilizing tubes; 44. a stirring cone; 45. stirring teeth; 46. a material distributing block; 47. fertilizer outlet holes; 48. and (7) fertilizing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1-5, the utility model provides a fertilizing device for planting slash pine, which comprises a walking vehicle 1, wherein a fertilizing mechanism is fixedly arranged on the walking vehicle 1;

the fertilizing mechanism comprises a quantitative component 2, the quantitative component 2 is fixedly arranged at the top end of the walking vehicle 1, and the top end of the quantitative component 2 is fixedly connected and communicated with a fertilizer hopper 5; the bottom end of the quantitative component 2 is fixedly connected and communicated with a telescopic component 3, and the telescopic component 3 is positioned below the walking vehicle 1; the bottom end of the telescopic component 3 is rotatably connected with a fertilizing component 4, and the fertilizing component 4 is communicated with the telescopic component 3;

the fertilization component 4 comprises a rotary table 41 which is rotatably connected to the bottom end of the telescopic component 3, the bottom end of the rotary table 41 is fixedly connected with a connecting pipe 42, and the bottom end of the connecting pipe 42 is fixedly connected with a stirring head; two symmetrically arranged fertilizing tubes 43 are fixedly connected to the side wall of the connecting tube 42, the fertilizing tubes 43 are positioned above the stirring head, and the fertilizing tubes 43 are communicated with the inner cavity of the connecting tube 42.

The utility model discloses a fertilizing device for planting slash pine, which is mainly used for quantitative fertilization in a planting pit in the slash pine planting process and uniform stirring of fertilizer and soil, thereby saving the process of covering and stirring after manual fertilization and improving the fertilizing efficiency; the fertilizer in the fertilizer hopper 5 is guided into the telescopic component 3 according to the set amount through the control of the quantitative component 2, so that the fertilizer application amount of each planting pit is accurately controlled, less fertilizer application is realized, and more fertilizer application is not realized; the fertilizer in the telescopic component 3 enters the fertilizing component 4 and then is applied to the planting pits, and the fertilizer and the soil are uniformly stirred, so that seedling burning caused by fertilizer accumulation is prevented; the fertilization pipe 43 can realize uniform fertilization in the rotation process through rotation, the stirring head downwards tunnels and turns over soil in the rotating process and uniformly stirs the turned-out soil and fertilizer, the fertilization work of planting pits is completed, the efficiency is high, manual fertilization and stirring are not needed, the depth of the pits is reduced, and the labor intensity is reduced.

In a further optimized scheme, the stirring head comprises a stirring cone 44 fixedly connected to the bottom end of the connecting pipe 42, and a plurality of stirring teeth 45 are fixedly connected to the side wall array of the stirring cone 44; the stirring teeth 45 are arranged obliquely downwards, and one end of the stirring teeth 45 far away from the stirring cone 44 is arranged corresponding to the tail end of the fertilizing tube 43. The connecting pipe 42 drives the stirring cone 44 to rotate, meanwhile, the telescopic assembly 3 pushes downwards, so that the stirring teeth 45 tunnel downwards and stir the tunneled soil blocks into pieces, in the process, the fertilizing pipe 43 uniformly performs rotary fertilization, the fertilizer and the stirred soil blocks are uniformly mixed, and the soil is covered and stirred after subsequent manual fertilization is not needed; meanwhile, the rear half section of the planting pit is tunneled by the stirring head, manual digging is not needed, the labor amount of digging the planting pit is reduced, and the planting efficiency is improved.

In a further optimized scheme, a distributing block 46 with a triangular section is fixedly connected to the bottom end of the inner cavity of the connecting pipe 42, and two sides of the distributing block 46 are obliquely arranged towards the fertilizing pipe 43; two fertilizer outlet holes 47 are formed in the side wall of the connecting pipe 42 in a penetrating mode, and the fertilizer outlet holes 47 are arranged corresponding to the inclined edges of the distributing blocks 46; the fertilizing tube 43 is communicated with a fertilizer outlet 47. The distributing block 46 is provided with an upward tip, and is mainly used for uniformly dividing the fertilizer falling in the connecting pipe 42 into two parts and respectively leading the two parts into the fertilizing pipe 43 through the fertilizer outlet 47, so that the fertilizer flows more smoothly, and no fertilizer is accumulated in the connecting pipe 42.

Further, a contact sensor (not shown) is arranged at the tail end of the fertilizing tube 43 and electrically connected with the lifting rod 34, and when the contact sensor contacts the soil layer, the lifting rod 34 is controlled to stop, so that the fertilizing tube 43 is prevented from contacting the soil and blocking is prevented; the rotation of the stirring head is not affected.

In a further optimized scheme, the fertilizing tube 43 is obliquely arranged downwards, and a plurality of fertilizing holes 48 are formed in the downward side wall of the fertilizing tube 43 in a penetrating mode. The fertilizing pipe 43 is arranged downwards, so that fertilizer can flow conveniently, and meanwhile, fertilizer accumulation is prevented; a plurality of fertilizing holes 48 are arranged on the downward side for fertilizing.

According to a further optimized scheme, the telescopic assembly 3 comprises a telescopic pipe 31 fixedly connected to the bottom end of the walking vehicle 1, the top end of the telescopic pipe 31 is communicated with the quantitative assembly 2, the bottom end of the telescopic pipe 31 is fixedly connected with a lifting disc 32, and the top end of the rotary disc 41 is rotatably connected with the bottom end of the lifting disc 32; a plurality of connecting blocks 33 are fixedly connected to the side wall of the lifting disc 32, and a lifting rod 34 is fixedly connected between the top end of each connecting block 33 and the bottom end of the walking vehicle 1; the side wall of the lifting disc 32 is fixedly provided with a rotating motor 35, the output end of the rotating motor 35 faces downwards and is fixedly connected with a driving gear 36, and the driving gear 36 is meshed and connected with the outer wall of the rotating disc 41. The extension tube 31 is a common self-retracting spring tube, can be lengthened when stressed, and can retract automatically after external force is lost; the lifting rod 34 pushes the lifting disc 32 to descend, the telescopic pipe 31 is lengthened, and the stirring head is driven to move downwards on the premise of not influencing the flowing of the fertilizer, so that the tunneling and the stirring are completed; the driving motor rotates the stirring head and the fertilizing tube 43 through the meshed driving gear 36 and the rotary disc 41, so that the tunneling and stirring work is completed, and meanwhile, the fertilization is more uniform.

Further, the lifting rod 34 is also used for preventing the telescopic pipe 31 from rotating and maintaining the stability of the stirring head.

In a further optimized scheme, the bottom surface of the lifting disc 32 is provided with a connecting groove 37, the top end of the rotating disc 41 is fixedly connected with a connecting ring 38 which is arranged corresponding to the connecting groove 37, and the connecting ring 38 is clamped in the connecting groove 37 and is rotatably connected with the connecting groove 37. The connecting ring 38 and the connecting groove 37 are clamped, so that the lifting disc 32 and the rotating disc 41 can rotate relatively on the premise of not influencing the connectivity, the connection tightness between the lifting disc and the rotating disc is improved, and fertilizer leakage is prevented.

According to a further optimized scheme, the quantitative assembly 2 comprises a quantitative pipe 21 fixedly mounted at the top end of the walking vehicle 1, the top end of the quantitative pipe 21 is fixedly connected and communicated with the fertilizer hopper 5, and the bottom end of the quantitative pipe 21 is communicated with the top end of the telescopic pipe 31; a quantitative shaft 22 is rotatably connected in the quantitative tube 21, a plurality of quantitative plates 23 are vertically and fixedly connected to the side wall of the quantitative shaft 22, and the inner cavity of the quantitative tube 21 at the edge of each quantitative plate 23 is in sliding contact with the inner cavity of the quantitative tube; either end of the dosing shaft 22 penetrates and protrudes out of the side wall of the dosing tube 21; the walking vehicle 1 is fixedly provided with a quantitative motor 24, and an output shaft of the quantitative motor 24 is in transmission connection with the quantitative shaft 22. In the application, the number of the quantitative plates 23 is 4, and the included angle between the adjacent quantitative plates 23 is 90 degrees; a fertilizer bearing space is formed between the adjacent two quantitative plates 23, the quantitative shaft 22 and the inner wall of the quantitative pipe 21; fertilizing each pair of planting pits, rotating the quantitative shaft 22 by 90 degrees, and pouring the fertilizer in the bearing space into the telescopic pipe 31 below; the amount of fertilizer is controlled accurately each time, and in the embodiment, the amount of fertilizer applied each time is controlled to be 1 kg per planting pit.

Furthermore, the walking vehicle 1 comprises a vehicle body 11, the quantitative component 2 is fixedly arranged on the vehicle body 11, and one end of the vehicle body 11 is fixedly connected with a handlebar 12, so that the walking vehicle is convenient to push; four corners of the bottom end of the vehicle body 11 are provided with traveling wheels 13, so that the vehicle is convenient to push and travel; a control panel 14 is arranged on the handlebar 12, and the control panel 14 is used for controlling the telescopic rod, the quantitative motor 24 and the rotating motor 35; the control panel 14 is a conventional button-type control device, and will not be described in detail herein.

Furthermore, the travelling wheels 13 have elasticity, and when the vehicle travels normally, the travelling wheels 13 are higher than the stirring head, so that the stirring head is higher than the ground; and the traveling wheels 13 are lower than the stirring head during fertilization, so that the stirring head is tunneled and stirred.

The using method comprises the following steps:

adding sufficient fertilizer into the fertilizer hopper 5, then pushing the walking vehicle 1 to a planting pit dug to the depth of half of the preset value, and aligning the stirring head with the planting pit; then the height of the vehicle body 11 is reduced through the travelling wheels 13, so that the stirring head contacts the bottom end of the planting pit;

starting a rotating motor 35 to rotate a stirring head, starting a lifting rod 34 to push downwards to drive the stirring head to tunnel downwards, controlling a quantitative motor 24 to rotate 90 degrees, pouring quantitative fertilizer into an extension pipe 31, finally entering a fertilizing pipe 43 and flowing out of a fertilizing hole 48, and uniformly stirring soil and the fertilizer by the stirring head while tunneling to finish fertilizing;

tunneling to a preset depth, preventing fertilizer from flowing out of the fertilizing pipe 43, stirring for 1-2min, controlling the lifting rod 34 to retract, and raising the stirring head, wherein the soil layer is stirred by the stirring teeth 45 in the process; the body 11 is then raised via road wheels 13 so that the mixing head is above the ground and then moved to the next planting pit to be fertilized.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above embodiments are only described for the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the scope of the present invention defined by the claims.

Claims (7)

1. The utility model provides a field pine is planted and is used fertilizer injection unit which characterized in that: the device comprises a walking vehicle (1), wherein a fertilizing mechanism is fixedly mounted on the walking vehicle (1);

the fertilizing mechanism comprises a quantitative component (2), the quantitative component (2) is fixedly installed at the top end of the walking vehicle (1), and the top end of the quantitative component (2) is fixedly connected and communicated with a fertilizer hopper (5); the bottom end of the quantitative component (2) is fixedly connected and communicated with a telescopic component (3), and the telescopic component (3) is positioned below the walking vehicle (1); the bottom end of the telescopic component (3) is rotatably connected with a fertilization component (4), and the fertilization component (4) is communicated with the telescopic component (3);

the fertilizing assembly (4) comprises a rotary table (41) which is rotatably connected to the bottom end of the telescopic assembly (3), the bottom end of the rotary table (41) is fixedly connected with a connecting pipe (42), and the bottom end of the connecting pipe (42) is fixedly connected with a stirring head; the lateral wall rigid coupling of connecting pipe (42) has two symmetrical fertilization pipes (43) that set up, fertilization pipe (43) are located the top of stirring head, fertilization pipe (43) with the inner chamber intercommunication of connecting pipe (42).

2. The fertilizing apparatus for slash pine planting according to claim 1, wherein: the stirring head comprises a stirring cone (44) fixedly connected to the bottom end of the connecting pipe (42), and a plurality of stirring teeth (45) are fixedly connected to the side wall array of the stirring cone (44); the stirring teeth (45) are obliquely and downwards arranged, and one end, far away from the stirring cone (44), of each stirring tooth (45) is arranged corresponding to the tail end of the fertilizing pipe (43).

3. The fertilizing apparatus for slash pine planting according to claim 1, wherein: a distributing block (46) with a triangular section is fixedly connected to the bottom end of the inner cavity of the connecting pipe (42), and two sides of the distributing block (46) are obliquely arranged towards the fertilizing pipe (43); two fertilizer outlet holes (47) are formed in the side wall of the connecting pipe (42) in a penetrating mode, and the fertilizer outlet holes (47) are arranged corresponding to the inclined edges of the distributing block (46); the fertilizing pipe (43) is communicated with the fertilizer outlet hole (47).

4. The fertilizing apparatus for slash pine planting according to claim 3, wherein: the fertilizing tube (43) is obliquely and downwards arranged, and a plurality of fertilizing holes (48) are formed in the downwards side wall of the fertilizing tube (43) in a penetrating mode.

5. The fertilizing apparatus for slash pine planting according to claim 1, wherein: the telescopic assembly (3) comprises a telescopic pipe (31) fixedly connected to the bottom end of the walking vehicle (1), the top end of the telescopic pipe (31) is communicated with the quantitative assembly (2), the bottom end of the telescopic pipe (31) is fixedly connected with a lifting disc (32), and the top end of the rotary disc (41) is rotatably connected with the bottom end of the lifting disc (32); a plurality of connecting blocks (33) are fixedly connected to the side wall of the lifting disc (32), and a lifting rod (34) is fixedly connected between the top end of each connecting block (33) and the bottom end of the walking vehicle (1); the lateral wall fixed mounting of lifting disk (32) has rotating electrical machines (35), the output of rotating electrical machines (35) is down and the rigid coupling has drive gear (36), drive gear (36) with the outer wall meshing of carousel (41) is connected.

6. The pinus elliottii planting fertilizer applicator of claim 5, wherein: connecting groove (37) have been seted up to the bottom surface of lifting disk (32), the top rigid coupling of carousel (41) have with connecting groove (37) correspond go-between (38) that set up, go-between (38) joint is in connecting groove (37) and with connecting groove (37) rotate to be connected.

7. The pinus elliottii planting fertilizer applicator of claim 5, wherein: the quantitative assembly (2) comprises a quantitative pipe (21) fixedly mounted at the top end of the walking vehicle (1), the top end of the quantitative pipe (21) is fixedly connected and communicated with the fertilizer hopper (5), and the bottom end of the quantitative pipe (21) is communicated with the top end of the telescopic pipe (31); a quantitative shaft (22) is rotatably connected in the quantitative tube (21), a plurality of quantitative plates (23) are vertically and fixedly connected to the side wall of the quantitative shaft (22), and the edges of the quantitative plates (23) are in sliding contact with the inner cavity of the quantitative tube (21); either end of the quantitative shaft (22) penetrates through and protrudes out of the side wall of the quantitative tube (21); the walking vehicle (1) is fixedly provided with a quantitative motor (24), and an output shaft of the quantitative motor (24) is in transmission connection with the quantitative shaft (22).

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