Fertilizing device for improving hardened soil

Abstract

The utility model discloses a fertilizing device for improving hardened soil, and belongs to the technical field of soil fertilizing equipment. The front end of the rack is fixedly connected with a suspension connecting seat; the upper part of the rack is fixedly connected with a fertilizer box and a driving mechanism; the fertilizer box is arranged at a position close to the rear part of the rack; two groups of stirring mechanisms are rotationally connected in the fertilizer box; the bottom of the fertilizer box communicates with a fertilizer discharging pipe, a fertilizing mechanism is arranged at the bottom of the fertilizer discharging pipe, a plurality of evenly-distributed deep ploughing ploughs are fixedly connected to the front end of the bottom of the rack, and a soil preparation assembly is arranged behind the deep ploughing ploughs. The deep ploughing plough, the soil preparation assembly, the fertilizer box and the fertilizer applying mechanism are sequentially arranged from front to back, soil deep ploughing, automatic soil leveling and uniform fertilizer applying are achieved, and hardened soil is greatly improved. The fertilizer applicator is mainly used for soil fertilization operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil fertilization equipment, and in particular relates to a fertilization device for improving compacted soil. Background Art

[0002] Long-term excessive use of chemical fertilizers will damage the soil structure, reduce the ability of soil particles to aggregate, and further lead to soil structure destruction and soil dispersion under external factors such as irrigation or rainfall. The dried land will become hardened and compacted due to cohesive force, seriously affecting the growth and development of crops. Therefore, before planting crops, the soil needs to be deep plowed and organic fertilizers need to be added to improve the soil environment.

[0003] In order to solve the above problems, the patent with publication number "CN116686451A" discloses a deep fertilization device for compacted soil. By setting rollers, sprockets and chains, the fertilizer can be applied as the soil moves, and fertilization will stop when the soil stops moving. Two chambers are set in the granary, and different fertilization states can be achieved according to the connection of the chain. A fertilizer box is set on the rear side of the plowshare, and fertilizer is applied directly after the soil is crushed. The soil turned up by the plowshare directly covers the fertilizer when it falls.

[0004] Although the above patent solves the problem of deep soil fertilization, the following problems still exist during use: 1. Only finished fertilizers can be used. For organic fertilizers that need to be mixed, such as organic fertilizers mixed with rice husks, rice bran, chicken manure, etc., a mixer needs to be set up separately to mix the materials in advance, or workers need to mix the materials, which is inconvenient to use; 2. The uniformity of soil fertilization is poor, which affects the poor soil improvement effect. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the shortcomings of the existing technology and provide a fertilizing device for improving compacted soil. The device is provided with a deep tillage plow, a land leveling component, a fertilizer box and a fertilizing mechanism in sequence from front to back, so as to achieve deep tillage of the soil, automatic leveling of the land and uniform fertilization, thereby greatly improving the compacted soil.

[0006] The fertilizing device for improving compacted soil comprises a frame, front walking wheels are rotatably connected to both sides of the frame, a suspension connecting seat is fixedly connected to the front end of the frame, a fertilizer box and a driving mechanism are fixedly connected to the upper part of the frame, the fertilizer box is arranged near the rear of the frame, two sets of stirring mechanisms are rotatably connected in the fertilizer box, the driving mechanism drives the stirring mechanism to rotate, a fertilizer lower pipe is connected to the bottom of the fertilizer box, a fertilizing mechanism is provided at the bottom of the fertilizer lower pipe, a plurality of evenly distributed deep plows are fixedly connected to the front end of the bottom of the frame, and a land leveling component is provided behind the deep plow.

[0007] Preferably, a sealed side cover is welded on one side of the top of the fertilizer box, which covers half of the length of the fertilizer box. A feeding port for adding fertilizer is provided on the other side of the top of the fertilizer box. A sliding side cover is slidably connected to the upper part of the feeding port, and a handle is fixedly connected to the sliding side cover.

[0008] Preferably, guide rails are fixedly connected to both sides of the fertilizer box in the width direction, and U-shaped sliding blocks that slide with the guide rails are fixed to the bottoms of both sides of the sliding side cover.

[0009] Preferably, the stirring mechanism includes a stirring shaft, both ends of which pass through the fertilizer box and are rotatably connected to the fertilizer box, the outer wall of the stirring shaft is fixedly connected with spirally arranged spiral blades, and the spiral blades in the two groups of stirring mechanisms rotate in opposite directions, and the outer wall of the stirring shaft is fixedly connected with multiple mixing plates, and adjacent mixing plates are staggered.

[0010] Preferably, the driving mechanism includes a first motor, which is fixedly mounted on the frame, and the output end of the first motor is fixedly connected to a driving wheel, one end of the stirring shaft of any one group of stirring mechanisms is fixedly connected to a stirring gear 1 and a driven wheel, and the driving wheel and the driven wheel are connected through a transmission assembly, and one end of the stirring shaft of another group of stirring mechanisms is fixedly connected to a stirring gear 2, and the stirring gear 2 is meshed with the stirring gear 1.

[0011] Preferably, the fertilizing mechanism includes a circular fertilizer turntable, on which six evenly distributed distribution plates are fixedly connected. The length of the distribution plates is smaller than the radius of the fertilizer turntable, one end of the distribution plates is aligned with the outer circumference of the fertilizer turntable, and the upper ends of the six distribution plates are fixedly connected with an upper retaining ring. A fertilizer outlet is formed between adjacent distribution plates, and a second motor is provided at the bottom of the fertilizer turntable, which is fixedly connected to the frame.

[0012] Preferably, a discharge valve is provided on the fertilizer lower pipe, the end of the fertilizer lower pipe is located above the distribution plate, and the fertilizer lower pipe is coaxially arranged with the fertilizer turntable.

[0013] Preferably, the rear end of the frame is provided with rear walking wheels, and the front and rear sides of the fertilizer box are respectively provided with fixing frames, which are fixedly connected to the frame.

[0014] Preferably, the deep tillage plow includes an arc-shaped rod, which is bent backward, the upper end of the arc-shaped rod is fixed to the frame, and the lower end of the arc-shaped rod is fixedly connected to a triangular plowshare by bolts.

[0015] Preferably, the leveling component includes a flat tooth plate with multiple tooth grooves, the flat tooth plate is tilted toward the rear of the frame, at least two T-shaped bent plates are welded to the upper part of the flat tooth plate, the T-shaped bent plates are fixedly connected to the frame, and a matching pointed tooth plate is fixedly connected to the lower part of the flat tooth plate, and the bottom of the pointed tooth plate is higher than the triangular plowshare.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model is provided with a deep plow, a land leveling component, a fertilizer box and a fertilizer applying mechanism in sequence from front to back. The deep plow is used to deeply plow the soil, break the plow bottom layer, increase the depth of the soil tillage layer, and promote soil ventilation and water penetration; the land leveling component can level the soil after deep plowing, and farmers do not need to turn the soil or level the land again, which improves work efficiency and reduces farmers' labor intensity; the fertilizer box and the fertilizer applying mechanism are arranged near the rear of the frame, which is convenient for evenly spreading fertilizer on the leveled soil. The structure is reasonable and easy to use, which greatly improves the compacted soil.

[0018] 2. Two sets of stirring mechanisms that can rotate relative to each other are added to the fertilizer box. On the one hand, the stirring mechanism can improve the fertilizer mixing efficiency and make the mixing more complete. On the other hand, when fertilizing, the stirring mechanism can be selectively started according to the viscosity and dispersion of the mixed fertilizer to avoid fertilizer clogging the fertilizer pipe during the fertilization process, which greatly improves the work efficiency and versatility of the equipment.

[0019] 3. The fertilizing mechanism adopts centrifugal action to make the fertilizer more evenly distributed. At the same time, an upper retaining ring is added on the top to allow the lower fertilizer pipe to extend into the upper retaining ring. The upper retaining ring plays a blocking role to prevent the fertilizer from being separated from the distribution plate from above and thrown out when the fertilizing turntable rotates, thereby achieving uniform discharge from each fertilizer outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the front side of the utility model;

[0021] Figure 2 It is a structural diagram of the rear side of the utility model;

[0022] Figure 3 It is a structural diagram of the bottom of the utility model;

[0023] Figure 4 This is a schematic diagram of the installation of the fertilizer box and the stirring mechanism;

[0024] Figure 5 Schematic diagram of the coordination of two sets of stirring mechanisms;

[0025] Figure 6 It is a structural diagram of the stirring mechanism;

[0026] Figure 7 It is a structural diagram of the fertilization mechanism;

[0027] Figure 8 This is a schematic diagram of the coordination between the deep tillage plow and the soil preparation assembly;

[0028] Figure 9 This is a structural diagram of a deep plow;

[0029] Figure 10 This is a structural diagram of the ground preparation component.

[0030] In the figure, 1. Frame; 101. Suspension connector; 102. Front travel wheel; 103. Rear travel wheel; 104. Fixed frame; 105. Mounting plate; 2. Fertilizer box; 201. Sealing side cover; 202. Sliding side cover; 203. Handle; 204. Guide rail; 205. Feeding port; 3. Driving mechanism; 301. First motor; 302. Driving wheel; 303. Driven wheel; 304. Mixing gear 1; 305 , mixing large gear 2; 4. deep plow; 401. triangular plowshare; 402. arc rod; 5. land preparation assembly; 501. flat tooth plate; 502. pointed tooth plate; 503. T-shaped bending plate; 6. fertilizing mechanism; 601. fertilizing turntable; 602. material distribution plate; 603. upper retaining ring; 604. fertilizer outlet; 605. second motor; 7. stirring mechanism; 701. spiral blade; 702. stirring shaft; 703. mixing plate. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings:

[0032] The directional terms used in the detailed description are intended solely to facilitate understanding of the technical solutions described herein by those skilled in the art based on the visual orientation shown in the accompanying drawings. Unless otherwise specified or limited, the terms "dispose," "install," and "connect" are to be interpreted broadly, and those skilled in the art will understand their specific meanings in this utility model based on the specific circumstances.

[0033] like Figures 1 to 10 As shown, a fertilizing device for improving compacted soil includes a frame 1, with front running wheels 102 rotatably connected on both sides of the frame 1, and two rear running wheels 103 provided at the rear end of the frame 1. The front running wheels 102 are mainly used to support the entire device and drive the device to move, and the rear running wheels 103 serve as auxiliary supports to balance the force on the entire fertilizing machine. The front end of the frame 1 is fixedly connected to a suspension connection seat 101, which is used to connect to a power machine such as a tractor to pull the machine to move. A fertilizer box 2 and a drive mechanism 3 are fixedly connected to the upper part of the frame 1. The fertilizer box 2 is set in a position near the rear of the frame. The front and rear sides of the fertilizer box 2 are respectively provided with fixed frames 104. The fixed frames 104 are used to support and limit the fertilizer box 2 to prevent the fertilizer box 2 from shifting during operation. The fixed frames 104 are fixedly connected to the frame 1. Two groups of stirring mechanisms 7 are rotatably connected in the fertilizer box 2, and the driving mechanism 3 drives the stirring mechanisms 7 to rotate. The relative rotation of the two groups of stirring mechanisms 7 can improve the fertilizer mixing efficiency and make the mixing more complete.

[0034] The bottom of the fertilizer box 2 is connected to a fertilizer pipe, and a fertilizing mechanism 6 is provided at the bottom of the fertilizer pipe. A plurality of evenly distributed deep plows 4 are fixedly connected to the front end of the bottom of the frame 1. The deep plow 4 is used to deep plow the soil and break the plow bottom layer, thereby increasing the depth of the soil tillage layer and promoting soil ventilation and water penetration. A land leveling component 5 is provided behind the deep plow 4. The land leveling component 5 can level the soil after deep plowing, and farmers do not need to turn the soil and level the land again, thereby improving work efficiency and reducing farmers' labor intensity. The fertilizer box 2 and the fertilizing mechanism 6 are both arranged near the rear of the frame 1, which is convenient for evenly spreading fertilizer on the leveled soil.

[0035] like Figure 1 and Figure 4 As shown, a sealed side cover 201 is welded to one side of the top of the fertilizer box 2, and the sealed side cover 201 covers half of the length direction of the fertilizer box 2. A feed port 205 for adding fertilizer is provided on the other side of the top of the fertilizer box 2, that is, the other half of the length direction of the fertilizer box 2 is in an open structure, and the opening structure is the feed port 205. The upper part of the feed port 205 is slidably connected to the sliding side cover 202. Specifically, the two sides of the fertilizer box 2 in the width direction are respectively fixedly connected to the guide rails 204, and the bottom of the two sides of the sliding side cover 202 are fixed with U-shaped sliders that slide with the guide rails 204. The sliding side cover 202 can cover the feed port 205 to prevent the fertilizer from spilling out during mixing. A handle 203 is fixedly connected to the sliding side cover 202, and the sliding side cover 202 is pushed to open or close by pushing the handle 203.

[0036] like Figure 5 and Figure 6 As shown, the stirring mechanism 7 includes a stirring shaft 702, both ends of which pass through the ends of the fertilizer box 2 and are rotatably connected to the fertilizer box 2. The outer wall of the stirring shaft 702 is fixedly connected to a spirally arranged spiral blade 701, and the spiral blades 701 in the two sets of stirring mechanisms 7 rotate in opposite directions. The outer wall of the stirring shaft 702 is fixedly connected to a plurality of mixing plates 703, and adjacent mixing plates 703 are staggered. During installation, the two sets of stirring mechanisms 7 are located at the same horizontal height, and the stirring shafts 702 in the two sets of stirring mechanisms 7 are arranged in parallel and arranged along the length of the fertilizer box 2.

[0037] like Figure 2As shown, the driving mechanism 3 includes a first motor 301, which is fixedly mounted on the mounting plate 105 on the frame 1. The output end of the first motor 301 is fixedly connected to a driving wheel 302. One end of the stirring shaft 702 of any one group of stirring mechanisms 7 is fixedly connected to a stirring gear 1 304 and a driven wheel 303. The driving wheel 302 and the driven wheel 303 are connected by a transmission assembly. In this embodiment, the driving wheel 302 and the driven wheel 303 are preferably sprockets, and the transmission assembly is preferably a chain. One end of the stirring shaft 702 of the other group of stirring mechanisms 7 is fixedly connected to a stirring gear 2 305, and the stirring gear 2 305 is meshed with the stirring gear 1 304. The two stirring gears have the same structure, and the number of teeth of the sprocket is less than that of the stirring gear. In addition to driving the two groups of stirring mechanisms 7 to rotate relative to each other, the stirring gear 2 305 and the stirring gear 1 304 also have a deceleration effect, so that the stirring mechanisms 7 can rotate more smoothly.

[0038] Start the first motor 301, which drives the driving wheel 302 to rotate. The driving wheel 302 transmits power to the driven wheel 303 through the transmission assembly. The driven wheel 303 drives the corresponding stirring shaft 702 and the stirring gear 1 304 to rotate. The stirring gear 1 304 is engaged with the stirring gear 2 305, thereby realizing the synchronous relative rotation of the two groups of stirring mechanisms 7.

[0039] like Figure 3 and Figure 7 As shown, the fertilizing mechanism 6 includes a circular fertilizing turntable 601, a second motor 605 is provided at the bottom of the fertilizing turntable 601, the fertilizing turntable 601 is fixedly connected to the power output end of the second motor 605, the second motor 605 is fixedly connected to the frame 1, and six evenly distributed dividing plates 602 are fixedly connected to the fertilizing turntable 601. The length of the dividing plate 602 is less than the radius of the fertilizing turntable 601, one end of the dividing plate 602 is aligned with the outer circumference of the fertilizing turntable 601, and the upper ends of the six dividing plates 602 are fixedly connected to an upper retaining ring 603, and a fertilizer outlet 60 is formed between adjacent dividing plates 602. 4. A discharge valve (not shown in the figure) is provided on the lower fertilizer pipe of the fertilizer box 2. The discharge valve is a prior art and various valves on the market can be used. The discharge valve is in a closed state when the various fertilizers in the fertilizer box 2 are mixed. The discharge valve is opened when fertilizer needs to be discharged. The end of the lower fertilizer pipe is located above the dividing plate 602, and the lower fertilizer pipe is coaxially arranged with the fertilizer turntable 601, that is, the lower fertilizer pipe extends into the upper retaining ring 603. The upper retaining ring 603 plays a blocking role to prevent the fertilizer from being thrown out from the upper part of the fertilizer turntable 601 when the fertilizer turntable 601 rotates, thereby achieving uniform discharge from each fertilizer outlet 604.

[0040] like Figure 8 and Figure 9As shown, the deep plow 4 includes an arc rod 402, which is bent backward, the upper end of the arc rod 402 is fixed to the frame 1, and the lower end of the arc rod 402 is fixed with a triangular plowshare 401 by bolts, that is, the tip of the triangular plowshare 401 faces the front of the frame 1. Arc rods 402 with different curvatures can be selected as needed to adjust the installation height of the triangular plowshare 401. During installation, the triangular plowshare 401 is tilted downward, and the triangular plowshare 401 is at the lowest point of the front walking wheel 102. The low point position of the triangular plowshare 401 determines the depth of cultivated land.

[0041] like Figure 10 As shown, the ground leveling assembly 5 includes a flat tooth plate 501 with multiple tooth grooves. The flat tooth plate 501 is tilted toward the rear of the frame 1. At least two T-shaped bent plates 503 are welded to the upper portion of the flat tooth plate 501. The T-shaped bent plates 503 are fixedly connected to the frame 1 via mounting bases. By adjusting the height of the T-shaped bent plates 503, the height of the ground leveling assembly 5 can be adjusted. The lower portion of the flat tooth plate 501 is fixedly connected to a matching sharp tooth plate 502. The bottom of the sharp tooth plate 502 is higher than the triangular plowshare 401. During use, the sharp tooth plate 502 acts on the soil surface. After the deep plow 4 turns the soil, the sharp tooth plate 502 can level the soil and separate large impurities at the same time, making it easy to use.

[0042] Working principle of this utility model:

[0043] When in use, the device is used in conjunction with a tractor, and the suspension connector 101 is fixedly connected to the rear of the tractor. The sliding side cover 202 is pushed by the handle 203 to open the feed port 205. At this time, the discharge valve is closed, and fertilizers such as rice husks, rice bran, and chicken manure are poured into the fertilizer box 2 through the feed port 205. The first motor 301 is started. The first motor 301 cooperates with the driving wheel 302 and the driven wheel 303 to drive the stirring gear 1 304 and the corresponding stirring shaft 702 to rotate. The stirring gear 1 304 meshes with the stirring gear 2 305, driving the other set of stirring mechanisms 7 to rotate. At this time, the two sets of stirring mechanisms 7 rotate relative to each other, so that the above-mentioned multiple fertilizers are fully mixed.

[0044] When fertilization is needed, the tractor drives the entire device forward, and multiple deep plows 4 penetrate deep into the ground through the triangular plowshares 401 to loosen the soil sufficiently. The rear land preparation component 5 levels the soil through the sharp tooth plate 502, opens the discharge valve and the second motor 605, and the second motor 605 drives the fertilizer turntable 601 to rotate at high speed. The mixed fertilizer falls into the fertilizer turntable 601 through the fertilizer pipe. Under the action of centrifugal force, the fertilizer is thrown out and spread out from multiple fertilizer outlets 604 at the same time to achieve uniform fertilization.

[0045] During operation, the stirring mechanism 7 can be selectively started according to the viscosity and dispersion of the mixed fertilizer to avoid the fertilizer clogging the fertilizer pipe during the fertilizer feeding process, thereby greatly improving the working efficiency and versatility of the equipment.

[0046] Finally, although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A fertilizing device for improving compacted soil, comprising a frame (1), two sides of the frame (1) are rotatably connected to front running wheels (102), and a front end of the frame (1) is fixedly connected to a suspension connection seat (101), characterized in that: A fertilizer box (2) and a driving mechanism (3) are fixedly connected to the upper portion of the frame (1). The fertilizer box (2) is arranged near the rear of the frame. Two groups of stirring mechanisms (7) are rotatably connected in the fertilizer box (2). The driving mechanism (3) drives the stirring mechanism (7) to rotate. A fertilizer pipe is connected to the bottom of the fertilizer box (2). A fertilizer application mechanism (6) is provided at the bottom of the fertilizer pipe. A plurality of evenly distributed deep plows (4) are fixedly connected to the front end of the bottom of the frame (1). A land preparation assembly (5) is provided behind the deep plow (4).

2. A fertilizing device for improving compacted soil according to claim 1, characterized in that: A sealing side cover (201) is welded to one side of the top of the fertilizer box (2), and the sealing side cover (201) covers half of the length direction of the fertilizer box (2). A feeding port (205) for adding fertilizer is provided on the other side of the top of the fertilizer box (2). The upper part of the feeding port (205) is slidably connected to a sliding side cover (202), and a handle (203) is fixedly connected to the sliding side cover (202).

3. A fertilizing device for improving compacted soil according to claim 2, characterized in that: Guide rails (204) are fixedly connected to both sides of the fertilizer box (2) in the width direction, and U-shaped sliding blocks that slide in cooperation with the guide rails (204) are fixed to the bottoms of both sides of the sliding side cover (202).

4. A fertilizing device for improving compacted soil according to claim 1, characterized in that: The stirring mechanism (7) comprises a stirring shaft (702), both ends of which pass through the fertilizer box (2) and are rotatably connected to the fertilizer box (2), the outer side wall of the stirring shaft (702) being fixedly connected with spirally arranged spiral blades (701), and the spiral blades (701) in the two groups of stirring mechanisms (7) rotating in opposite directions, and the outer side wall of the stirring shaft (702) being fixedly connected with a plurality of mixing plates (703), and adjacent mixing plates (703) being staggered.

5. The fertilizing device for improving compacted soil according to claim 2, characterized in that: The driving mechanism (3) comprises a first motor (301), which is fixedly mounted on the frame (1); an output end of the first motor (301) is fixedly connected to a driving wheel (302); one end of the stirring shaft (702) of any one group of stirring mechanisms (7) is fixedly connected to a stirring large gear 1 (304) and a driven wheel (303); the driving wheel (302) and the driven wheel (303) are connected in transmission via a transmission assembly; one end of the stirring shaft (702) of another group of stirring mechanisms (7) is fixedly connected to a stirring large gear 2 (305); the stirring large gear 2 (305) is meshed with the stirring large gear 1 (304).

6. The fertilizing device for improving compacted soil according to claim 1, characterized in that: The fertilizing mechanism (6) comprises a circular fertilizing turntable (601), six evenly distributed distribution plates (602) are fixedly connected to the fertilizing turntable (601), the length of the distribution plates (602) is less than the radius of the fertilizing turntable (601), one end of the distribution plates (602) is aligned with the outer circumference of the fertilizing turntable (601), an upper retaining ring (603) is fixedly connected to the upper ends of the six distribution plates (602), and a fertilizer outlet (604) is formed between adjacent distribution plates (602). A second motor (605) is provided at the bottom of the fertilizing turntable (601), and the second motor (605) is fixedly connected to the frame (1).

7. A fertilizing device for improving compacted soil according to claim 6, characterized in that: The fertilizer lowering pipe is provided with a discharge valve, the end of the fertilizer lowering pipe is located above the distribution plate (602), and the fertilizer lowering pipe is coaxially arranged with the fertilizer rotating disc (601).

8. The fertilizing device for improving compacted soil according to claim 1, characterized in that: The rear end of the frame (1) is provided with a rear walking wheel (103), and the front and rear sides of the fertilizer box (2) are respectively provided with a fixing frame (104), and the fixing frame (104) is fixedly connected to the frame (1).

9. The fertilizing device for improving compacted soil according to claim 1, characterized in that: The deep plow (4) comprises an arc-shaped rod (402) which is bent backwards, the upper end of the arc-shaped rod (402) is fixed to the frame (1), and the lower end of the arc-shaped rod (402) is fixedly connected to a triangular plowshare (401) via bolts.

10. The fertilizing device for improving compacted soil according to claim 9, characterized in that: The land leveling assembly (5) comprises a flat tooth plate (501) with a plurality of tooth grooves, the flat tooth plate (501) being arranged obliquely toward the rear of the frame (1), at least two T-shaped bent plates (503) being welded to the upper portion of the flat tooth plate (501), the T-shaped bent plates (503) being fixedly connected to the frame (1), and a matching pointed tooth plate (502) being fixedly connected to the lower portion of the flat tooth plate (501), the bottom of the pointed tooth plate (502) being higher than the triangular plowshare (401).

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