Adjustable ditching device for strip seeder

Abstract

The ditching device comprises a plow cone frame, middle mud inlets are formed in the middles of the two sides of the plow cone frame, a first cylinder is arranged at the top of one end of the plow cone frame, a middle cover plate is arranged at the top of the plow cone frame, and a reciprocating threaded rod and a grinding roller are arranged in the middle cover plate; according to the invention, soil generated by ditching is subjected to multi-stage crushing treatment, the soil is guided into a seeding ditch for bedding, seeding and covering treatment, coating protection of seeds is realized by utilizing the crushed soil, the seeds are effectively prevented from being backfilled and covered by original soil of ditching soil, multi-stage soil backfilling of the seeding ditch is realized, and the seeding efficiency is improved. Under the action of the self weight of the backfilled soil, the crushed soil is promoted to further coat the outside of the seeds, so that the seeds are in full contact with the surrounding soil, moisture and nutrient absorption is facilitated, and the seedling emergence and protection rate of crops is increased.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to an adjustable furrowing device for a strip seeder. Background Art

[0002] The furrowing device of the adjustable strip seeder is a key component of the seeder. Its main function is to open suitable furrows in the soil to create conditions for seed sowing. Through the opened furrows, the seeds can be accurately placed at the predetermined soil depth, which is conducive to good contact between the seeds and the soil, improving the germination rate of seeds and the growth quality of seedlings. It is usually located at the front or bottom of the seeder and works in conjunction with the seed transport tube and other components of the seeder. The strip seeder is often used in sowing belts covered with straw strips. During sowing, the soil layer around the grain seeds is often in a suspended state due to the influence of soil conditions, ground cover conditions, seeders and planting requirements, and its ability to lock in water and fertilizer is poor, making it difficult to ensure that the seedlings are complete and strong.

[0003] In conjunction with the above content, it should be explained that: Chinese patent with announcement number CN111557136A discloses a furrowing compound strip seeder, which can realize the one-time operation of applying base fertilizer, sowing, pressing and furrowing, greatly improving work efficiency. On the other hand, by adding an adjusting bracket to control the spacing and height of the lower seed tube, it is ensured that the seeds are sown evenly, the seedlings emerge neatly and the depth is consistent, avoiding the phenomenon of seeds being squeezed together. However, when sowing seeds, when the original soil of the furrows is backfilled and covered, the seeds are affected by factors such as the hardness of the cultivated soil and the sowing machine, resulting in the inability of the seeds to fully contact the soil, affecting the emergence and seedling protection of the sowing.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The object of the present invention is to provide an adjustable furrowing device for a strip seeder to solve the problems raised.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a furrowing device for an adjustable strip seeder, comprising a plow cone frame, wherein a middle mud inlet is arranged in the middle of both sides of the plow cone frame, a cylinder column is arranged at the top of one end of the plow cone frame, and a middle cover plate is arranged at the top of the plow cone frame, a reciprocating threaded rod and a crushing roller are arranged inside the middle cover plate, a stirring crushing mechanism is arranged below the reciprocating threaded rod, the stirring crushing mechanism comprises a limit frame and a cone disk, and a plurality of groups of movable crushing blocks are arranged on the cone disk, and a mud return assembly is arranged at the top of the other end of the plow cone frame; A powder mud evenly spreading frame is arranged below the return mud assembly, the return mud assembly comprises an adjustment bracket and an arc-shaped guide plate, and a plurality of groups of crushing blades are arranged on the inner wall of the arc-shaped guide plate, and a clamping plate is arranged on the end surface of the powder mud evenly spreading frame.

[0007] Furthermore, a guide cone which is sleeved with the cylinder is arranged at the top of one end of the plow cone frame, and a material injection port is arranged on the outer wall of a middle part of the cylinder, and a slide groove is symmetrically arranged at the top of the other end of the plow cone frame.

[0008] Furthermore, a covering material opening is arranged at the bottom of the other end of the plow cone frame, and a seed outlet is arranged below the covering material opening, and a mud powder opening is arranged below the seed outlet.

[0009] Furthermore, a second cylinder is provided through the top of the middle cover plate, and a transmission main shaft connected to the reciprocating threaded rod is provided inside the second cylinder, a spiral lifting piece is connected to the bottom of one end of the reciprocating threaded rod, and a transmission secondary shaft connected to the transmission main shaft is provided on the end face of the crushing roller.

[0010] Furthermore, a sliding block connected to the reciprocating threaded rod is arranged in the middle of the limiting frame, a guide wheel is arranged below the limiting frame, and a traction line connecting the sliding block and the cone disk is arranged on the surface of the guide wheel.

[0011] Furthermore, a diverter frame connected to the mobile crushing block is provided on the surface of the cone disk, a winding disk is provided at the bottom of one end of the diverter frame, a drag line is wound on the surface of the winding disk, the drag line passes through the interior of one end of the diverter frame and is connected to the mobile crushing block, and the traction line passes through the interior of the other end of the diverter frame and is connected to the mobile crushing block.

[0012] Furthermore, the adjustment bracket is symmetrically and slidably sleeved with extension plates on both sides, and the extension plates are connected to the arc guide plate, and the crushing blades are arranged obliquely on the inner wall of the arc guide plate.

[0013] Furthermore, an arc-shaped scraping surface is provided at the bottom of the powder mud evenly spreading frame, a connecting column is provided at the top of the powder mud evenly spreading frame, a scraping strip is provided at the bottom of the pallet, a telescopic connecting rod is sleeved between the pallet and the powder mud evenly spreading frame, and an arc-shaped frame connected to the end face of the pallet is provided below the telescopic connecting rod, and a fertilizer nozzle is provided on the bottom wall of the arc-shaped frame.

[0014] The beneficial effects of the present invention are: The present invention partially absorbs the soil produced by trenching, and performs multi-stage crushing on it to make it loose and free of hard lumps, and then guides it into the sowing trench for paving, sowing and covering. The crushed soil is used to achieve coating protection for seeds, effectively avoiding the seeds from being backfilled and covered by the original soil of the trenching, thereby improving the seed germination and seedling preservation rate.

[0015] The present invention realizes a soft soil layer in the sowing furrow by crushing part of the soil, and actively guides and gathers the easily falling parts of the soil in combination with the mud returning component and the mud evenly spreading frame, and realizes multi-level soil backfilling of the sowing furrow along with the continuous movement of the furrow opening device and the active adjustment of the distance between the mud evenly spreading frame and the sowing furrow, which helps to lock water and fertilizer in the soil around the seeds, and in the later stage, with the continuous infiltration of external water, the crushed soil is further coated on the outside of the seeds under the action of the deadweight of the backfill soil, which helps the seeds to fully contact with the surrounding soil, promotes the absorption of water and nutrients, and realizes full and strong seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the plow cone frame of the present invention; Figure 3 It is a bottom view structural schematic diagram of the plow cone frame of the present invention; Figure 4 It is a schematic diagram of the connection structure between the mud return assembly and the powder mud equalization frame of the present invention; Figure 5 It is a structural schematic diagram of the mud return assembly of the present invention; Figure 6 It is a structural schematic diagram of the arc guide frame of the present invention; Figure 7 This is a schematic diagram of the structure of the powder mud uniform paving frame of the present invention; Figure 8 It is a structural schematic diagram of the cover plate in the present invention; Fig. 9 It is a structural schematic diagram of the material-moving crushing mechanism of the present invention; Fig.10 It is a structural schematic diagram of the cone disk of the present invention.

[0018] Reference numerals: 1. plough cone frame; 101. middle mud inlet; 102. guide cone; 103. cylinder column one; 104. injection port; 105. chute; 106. cover material opening; 107. seed outlet; 108. mud powder opening; 2. middle cover plate; 201. cylinder column two; 202. transmission main shaft; 203. reciprocating threaded rod; 204. spiral lifting member; 205. transmission secondary shaft; 206. crushing roller; 3. mud return assembly; 301. adjustment bracket; 302. 02. Extension plate; 303. Arc guide plate; 304. Crushing blade; 4. Powder and mud evenly spread frame; 401. Telescopic connecting rod; 402. Card plate; 403. Arc tilting frame; 404. Connecting column; 405. Arc scraping surface; 406. Fertilizer nozzle; 407. Scraping strip; 5. Moving crushing mechanism; 501. Limiting frame; 502. Sliding block; 503. Guide wheel; 504. Traction line; 505. Cone disk; 506. Diverter frame; 507. Mobile crushing block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1 - Fig.10 As shown, this embodiment is an adjustable furrowing device for a strip seeder, comprising a plow cone frame 1, a middle mud inlet 101 is arranged in the middle of both sides of the plow cone frame 1, a cylinder 103 is arranged on the top of one end of the plow cone frame 1, and a middle cover plate 2 is arranged on the top of the plow cone frame 1, a reciprocating threaded rod 203 and a crushing roller 206 are arranged inside the middle cover plate 2, and a material-moving crushing mechanism 5 is arranged below the reciprocating threaded rod 203; The moving crushing mechanism 5 includes a limit frame 501 and a cone disk 505, and a plurality of groups of movable crushing blocks 507 are arranged on the cone disk 505. A mud return component 3 is arranged on the top of the other end of the plow cone frame 1. According to the furrowing depth required for grain planting, the furrowing device is assembled and connected with the traction component of the strip seeder, and the furrowing device is driven by the traction component to gradually press down in the early stage of movement of the strip seeder in the cultivated land, so that one end of the furrowing device is inserted into the soil of the cultivated land.

[0021] A guide cone 102 which is sleeved with a cylinder 103 is arranged on the top of one end of the plow cone frame 1, and a material injection port 104 is arranged on the outer wall of the middle part of the cylinder 103. A slide groove 105 is symmetrically arranged on the top of the other end of the plow cone frame 1. One end of the plow cone frame 1 is inserted into the soil, and is inserted into the soil as the strip seeder continues to travel until the plow cone frame 1 is inserted into the soil to a certain depth. The traction component adjusts the plow cone frame 1 to maintain a horizontal state, and then the cultivated soil is trenched at a fixed depth. The traction component is a combination of existing metal parts and hydraulic parts on the strip seeder.

[0022] A covering material opening 106 is provided at the bottom of the other end of the plow cone frame 1, and a seed outlet 107 is provided below the covering material opening 106, and a mud powder opening 108 is provided below the seed outlet 107. The excess soil generated by ditching slides along the outer wall of the plow cone frame 1, and a small amount of soil is guided by the guide cone 102 into the groove connecting the plow cone frame 1 and the middle cover plate 2 on both sides, and is pushed by the subsequent soil to move toward the mud return component 3 area. The soil close to the mud return component 3, the bottom of which is subject to friction and is relatively loose and easy to fall off, falls into between the mud powder evenly spreading frame 4 and the clamping plate 402 when passing through the gap between the middle cover plate 2 and the extension plate 302, and is guided along the top of the extension plate 302 into the groove after sowing covering, thereby realizing secondary covering of the groove after sowing covering.

[0023] A cylinder column 201 is provided through the top of the middle cover plate 2, and a transmission main shaft 202 connected to the reciprocating threaded rod 203 is provided inside the cylinder column 201, and a spiral lifting piece 204 is connected to the bottom of one end of the reciprocating threaded rod 203, and a transmission secondary shaft 205 connected to the transmission main shaft 202 is provided on the end face of the crushing roller 206. The soil sliding along the two sides of the plow cone frame 1 partially enters the inside of the plow cone frame 1 along the middle mud inlet 101. A grid is provided on the surface of the middle mud inlet 101 for filtering larger external impurities, stones, etc., and at the same time, the soil entering the inside of the plow cone frame 1 is preliminarily evenly divided and crushed, and the soil entering the inside of the plow cone frame 1 is accumulated at the bottom of the spiral lifting piece 204.

[0024] The transmission main shaft 202 is connected to the driving components on the strip seeder through the cylinder 201. The bottom of the transmission main shaft 202 is connected to the reciprocating threaded rod 203 and the transmission secondary shaft 205 through a gear group. The gear group includes helical gears, bevel gears, etc., which can be replaced according to actual needs. The reciprocating threaded rod 203 is meshed with the top of the spiral lifting member 204 through the gear group. The spiral lifting member 204 rotates continuously and guides the soil accumulated inside the plow cone frame 1 to slide spirally. During this period, the soil is squeezed and kneaded, and falls into the cone disk 505 when it moves to the top of the spiral lifting member 204.

[0025] After being processed by the cone disk 505, the soil falls onto the crushing roller 206. The crushing roller 206 rotates by meshing with the transmission main shaft 202 through the gear set and the transmission secondary shaft 205. The crushing roller 206 rotates to cause the soil to be crushed and then fall onto the inner wall of the other end of the plough cone frame 1. Affected by the multiple groups of inclined surfaces provided on the inner wall surface of the other end of the plough cone frame 1, the crushed soil is diverted into the cover material opening 106 and the mud powder opening 108. The cover material opening 106 and the mud powder opening 108 are both provided with micro cylinders for pushing the crushed soil, which are used to actively push the collected crushed soil to continuously enter the sowing furrow. The mud powder opening 108 lays a layer of crushed soil on the bottom surface of the sowing furrow, the seed outlet 107 guides the quantitative seeds to roll on the crushed soil layer, and the cover material opening 106 guides the quantitative crushed soil to cover the seeds and the crushed soil layer, so as to achieve multiple soft-wrapped protection for the seeds. There are many pores between the crushed soil, which is conducive to the rapid penetration of water and the flow of air in the soil, thereby promoting seed germination; The crushed soil is initially compacted under the pressure of the subsequent backfill soil. As the crushed soil continues to absorb external water and fertilizer, combined with the continuous pressure of the top backfill soil, the crushed soil slowly sticks to each other until the seeds are fully covered, locking in water and fertilizer, making it easier for the seeds to quickly absorb water and nutrients, thereby promoting germination and growth.

[0026] A slider 502 connected to the reciprocating threaded rod 203 is arranged in the middle of the limiting frame 501 , a guide wheel 503 is arranged below the limiting frame 501 , and a traction line 504 connecting the slider 502 and the cone disk 505 is arranged on the surface of the guide wheel 503 .

[0027] A diverter frame 506 connected to the mobile crushing block 507 is arranged on the surface of the cone disk 505, a winding disk is arranged at the bottom of one end of the diverter frame 506, a drag line is wound on the surface of the winding disk, the drag line passes through the inside of one end of the diverter frame 506 and is connected to the mobile crushing block 507, and the traction line 504 passes through the inside of the other end of the diverter frame 506 and is connected to the mobile crushing block 507, the top of the slider 502 contacts the screw groove on the surface of the reciprocating threaded rod 203, and is affected by the limiting position of the limiting frame 501, and then reciprocates along the axial direction of the limiting frame 501, which drives the traction line 504 to rub along the guide wheel 503, and drags the mobile crushing block 507 to slide axially on the diverter frame 506; When the slide moves toward one end of the reciprocating threaded rod 203, the traction line 504 drags the movable crushing block 507 to slide along the diverter frame 506 to the other end, and the traction line is pulled and extended out of the winding disk, causing the spring inside the winding disk to rotate and squeeze. When the slide moves toward the other end of the reciprocating threaded rod 203, the spring loses its restriction and drives the winding disk to rotate, causing the traction line to pull the movable crushing block 507 to slide along the diverter frame 506 to one end. The movable crushing block 507 actively pulls the slider 502 to move through the traction line 504. During the movement of the movable crushing block 507, the soil trapped on the diverter frame 506 is almost pushed and slid until they contact each other, causing some loose and easy-to-fall-off soil to fall onto the crushing roller 206.

[0028] Embodiment 2: This embodiment is a furrowing device for an adjustable strip seeder, comprising a mud-distributing frame 4 arranged below a mud-returning assembly 3, the mud-distributing assembly 3 comprising an adjusting bracket 301 and an arc-shaped guide plate 303, and a plurality of groups of crushing blades 304 are arranged on the inner wall of the arc-shaped guide plate 303, and a clamping plate 402 is arranged on the end surface of the mud-distributing frame 4; When part of the soil moves along both sides of the plow cone frame 1 and approaches the powder mud evenly spread frame 4, part of the soil on one side of the powder mud evenly spread frame 4 that is easy to fall off is rubbed off and falls off, and is gathered between the powder mud evenly spread frame 4 and the clamping plate 402, and part of the soil that falls off after passing through the extension plate 302 gathers together, and the arc-shaped tilting frame 403 guides part of the soil to approach the arc-shaped scraping surface 405, and with the continuous movement of the furrowing device, part of the soil is guided to be pressed on top of the crushed soil; Before use, the mud evenly spreading frame 4 is actively adjusted according to the needs of use. The hydraulic component on the traction component drives the mud evenly spreading frame 4 to adjust vertically up and down. The mud evenly spreading frame 4 is connected to the hydraulic component through the connecting column 404. When the mud evenly spreading frame 4 is pulled up and down to slide, the distance between the arc scraping surface 405 and the bottom of the sowing furrow is adjusted, and the clamping plate 402 is clamped with the plow cone frame 1. During the adjustment of the mud evenly spreading frame 4, the telescopic connecting rod 401 is pulled and retracted, and rotatable kits are provided at both ends of the telescopic connecting rod 401.

[0029] The adjustment bracket 301 is symmetrically and slidably sleeved with extension plates 302 on both sides, and the extension plates 302 are connected to the arc guide plate 303. The crushing blades 304 are arranged obliquely on the inner wall of the arc guide plate 303. After the soil passing through the arc guide plate 303 is contacted by the crushing blades 304, it is cut by the crushing guide blades 304 to produce fragments, which is helpful for subsequent backfilling and loose spreading in the sowing furrow.

[0030] The bottom of the powder mud evenly paving frame 4 is provided with an arc-shaped scraping surface 405, the top of the powder mud evenly paving frame 4 is provided with a connecting column 404, the bottom of the card plate 402 is provided with a scraping strip 407, a telescopic connecting rod 401 is sleeved between the card plate 402 and the powder mud evenly paving frame 4, and an arc-shaped tilting frame 403 connected to the end surface of the card plate 402 is provided below the telescopic connecting rod 401; When the position of the mud evenly spreading frame 4 is adjusted up and down, the adjusting bracket 301 is sleeved on the outer periphery of the connecting column 404 and is adjusted synchronously with the up and down movement of the connecting column 404. During the adjustment of the adjusting bracket 301, the end face of the extension plate 302 is provided with a sliding member connected to the slide groove 105, which prompts the extension plate 302 to move axially along the slide groove 105. The slide groove 105 is affected by the main body of the plow cone frame 1 and has a V-shaped design. The extension plate 302 is provided with multiple sets of outer frames on the side close to the adjusting bracket 301, and inner frames are provided on both sides of the adjusting bracket 301. The outer frames and the inner frames cooperate with each other, which prompts the extension plate 302 to telescope and slide along both sides of the adjusting bracket 301 during the up and down movement of the extension plate 302, and at the same time adjust the guiding range of the soil after trenching.

[0031] A fertilizer nozzle 406 is arranged on the bottom wall of the arc-shaped tilting frame 403. When the seeds are covered and protected by multiple layers of crushed soil, a seed tube and a fertilizer tube are arranged inside the injection port 104. The seed tube is connected to the seed storage container and the seed outlet 107 on the seeder, and the fertilizer tube is connected to the fertilizer container and the fertilizer nozzle 406 on the seeder. When the seeds enter the surface of the crushed soil layer along the seed outlet 107, the fertilizer nozzle 406 guides a small amount of fertilizer to be sprayed on the surface, which helps the crushed soil layer and the crushed soil to adhere and cover the seeds.

[0032] In combination with Example 1 and Example 2, it can be known that the soil produced by trenching can be locally absorbed and subjected to multi-stage crushing treatment, and then guided into the sowing trench for paving, sowing and covering treatment, and the crushed soil can be used to achieve a covering protection for the seeds, effectively avoiding the seeds from being covered by the original soil of the trenching, thereby improving the seed trenching and sowing germination rate, and multi-stage soil backfilling of the sowing trench can be achieved, which helps to grade the soil around the seeds to lock in water and fertilizer, and accompanied by the continuous infiltration of external water, the crushed soil is prompted to fully contact with the seeds under the action of the self-weight of the backfill soil, which is beneficial to the absorption of water and nutrients and improves the crop germination and seedling preservation rate.

[0033] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A furrowing device for an adjustable strip seeder, comprising a plough cone frame (1), characterized in that: A middle mud inlet (101) is provided in the middle of both sides of the plough cone frame (1), a cylinder column (103) is provided at the top of one end of the plough cone frame (1), and a middle cover plate (2) is provided at the top of the plough cone frame (1), a reciprocating threaded rod (203) and a crushing roller (206) are provided inside the middle cover plate (2), a material stirring and crushing mechanism (5) is provided below the reciprocating threaded rod (203), the material stirring and crushing mechanism (5) comprises a limit frame (501) and a cone disk (505), and a plurality of groups of movable crushing blocks (507) are provided on the cone disk (505), and a mud return assembly (3) is provided at the top of the other end of the plough cone frame (1); A powder mud evenly spreading frame (4) is arranged below the mud return assembly (3), the mud return assembly (3) comprises an adjustment bracket (301) and an arc-shaped guide plate (303), and a plurality of groups of crushing blades (304) are arranged on the inner wall of the arc-shaped guide plate (303), and a clamping plate (402) is arranged on the end surface of the powder mud evenly spreading frame (4).

2. The adjustable furrowing device for a strip seeder according to claim 1, characterized in that: A guide cone (102) sleeved with a cylinder column (103) is arranged at the top of one end of the plow cone frame (1), and a material injection port (104) is arranged on the outer wall of the middle part of the cylinder column (103). A slide groove (105) is symmetrically arranged at the top of the other end of the plow cone frame (1).

3. The adjustable furrowing device for a strip seeder according to claim 2, characterized in that: A covering material spreading opening (106) is provided at the bottom of the other end of the plow cone frame (1), and a seed leaking opening (107) is provided below the covering material spreading opening (106), and a mud powder spreading opening (108) is provided below the seed leaking opening (107).

4. The adjustable furrowing device for a strip seeder according to claim 1, characterized in that: A second cylinder column (201) is provided through the top of the middle cover plate (2), and a transmission main shaft (202) is provided inside the second cylinder column (201) and is transmission-connected to a reciprocating threaded rod (203); a spiral material lifting member (204) is transmission-connected to the bottom of one end of the reciprocating threaded rod (203); and a transmission secondary shaft (205) connected to the transmission main shaft (202) is provided on the end surface of the crushing roller (206).

5. The adjustable furrowing device for a strip seeder according to claim 1, characterized in that: A slider (502) connected to the reciprocating threaded rod (203) is arranged in the middle of the limiting frame (501), a guide wheel (503) is arranged below the limiting frame (501), and a traction line (504) connecting the slider (502) and the cone disk (505) is arranged on the surface of the guide wheel (503).

6. The adjustable furrowing device for a strip seeder according to claim 5, characterized in that: The surface of the cone (505) is provided with a diverter frame (506) connected to the movable crushing block (507); a winding disk is provided at the bottom of one end of the diverter frame (506); a drag line is wound around the surface of the winding disk; the drag line passes through the interior of one end of the diverter frame (506) and is connected to the movable crushing block (507); and the traction line (504) passes through the interior of the other end of the diverter frame (506) and is connected to the movable crushing block (507).

7. The adjustable furrowing device for a strip seeder according to claim 1, characterized in that: The two sides of the adjustment bracket (301) are symmetrically slidably sleeved with extension plates (302), and the extension plates (302) are connected to the arc-shaped guide plate (303). The crushing blades (304) are arranged obliquely on the inner wall of the arc-shaped guide plate (303).

8. The adjustable furrowing device for a strip seeder according to claim 1, characterized in that: The bottom of the powder mud evenly spreading frame (4) is provided with an arc-shaped scraping surface (405), the top of the powder mud evenly spreading frame (4) is provided with a connecting column (404), the bottom of the clamping plate (402) is provided with a scraping strip (407), a telescopic connecting rod (401) is sleeved between the clamping plate (402) and the powder mud evenly spreading frame (4), and an arc-shaped tilting frame (403) connected to the end surface of the clamping plate (402) is provided below the telescopic connecting rod (401), and a fertilizer spraying nozzle (406) is provided on the bottom wall of the arc-shaped tilting frame (403).

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