Depth-adjustable multifunctional soil ploughing equipment

Abstract

The invention discloses depth-adjustable multifunctional soil ploughing equipment which comprises a frame and two transverse rods arranged on the frame in parallel at intervals, and a mounting mechanism is arranged on one side of the frame; a plurality of plowing units capable of adjusting the plowing depth according to the soil condition are arranged on any cross rod at intervals, and the plowing units on the two cross rods are arranged in a staggered mode. A plurality of ploughing units are respectively arranged on two cross rods at intervals, and the ploughing units can be used according to different soil conditions (for example, the forward resistance is large when hardened soil is encountered; the stone needs to be turned out when encountering the stone; and the insertion depth and the angle of the rake teeth are automatically adjusted, so that the ploughing quality is improved, and the wear rate of the rake teeth is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of soil tillage, and in particular to multifunctional soil tillage equipment with adjustable depth. Background Art

[0002] Tillage equipment is a mechanical device used to plow the soil, turning it over to loosen it and facilitate the growth of crops after sowing. Tillage equipment usually consists of one or more rotating blades that can be towed or self-propelled.

[0003] As we all know, the greater the soil density, the tighter the bond between soil particles, and the higher the soil hardness. For example, when plowing compacted soil, the plowing equipment needs to overcome greater resistance to move forward smoothly. When the power of the plowing equipment is constant, the soil with too high hardness will limit the plowing depth, because it is difficult for the equipment to push the plowing rake teeth deeper into the soil. The soil with lower hardness has a relatively loose structure, and the plowing parts are easier to insert deeper into the soil layer. Under the same equipment power and operating conditions, a greater plowing depth can be achieved. Due to the different hardness of the soil, there will be two situations when plowing: when the soil hardness is high, the plowing is not in place (the plowing depth is not enough); when the soil is loose, the plowing is over-plowed (the plowing depth is deep). Therefore, when the soil hardness is high, the plowing depth of the plowing equipment needs to be deeper so that the deeper soil can be effectively turned up; and when the soil hardness is low (the soil is loose), the plowing depth is smaller to prevent the soil from becoming looser on the basis of looseness.

[0004] However, the length of the rake teeth of some tillage equipment in the prior art is generally fixed, and it cannot be adjusted in real time according to the actual situation in the soil to improve the quality of tillage.

[0005] Therefore, a multifunctional soil tillage equipment with adjustable depth is proposed. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a multifunctional soil tillage device with adjustable depth.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] A multifunctional soil tillage equipment with adjustable depth comprises a frame and two cross bars arranged on the frame in parallel and at intervals, a mounting mechanism is arranged on one side of the frame; a plurality of tillage units capable of adjusting the tillage depth according to soil conditions are arranged at intervals on any of the cross bars, and the plurality of tillage units on the two cross bars are arranged in an alternating manner.

[0009] Further, in the present invention, any of the above-mentioned tilling units includes a rake head hinged to the corresponding above-mentioned cross bar, a first arc-shaped rake tooth hinged to the above-mentioned rake head, a second arc-shaped rake tooth slidably connected to the above-mentioned first arc-shaped rake tooth and a pushing mechanism arranged on the above-mentioned first arc-shaped rake tooth, and the above-mentioned pushing mechanism is connected to the above-mentioned second arc-shaped rake tooth; the above-mentioned rake head is a T-shaped structure, and the above-mentioned rake head includes a rod body and a top end and a bottom end arranged at one end of the above-mentioned rod body, the free end of the above-mentioned rod body is hinged to the corresponding above-mentioned cross bar, and one end of the above-mentioned first arc-shaped rake tooth is hinged to the above-mentioned bottom end; the above-mentioned rake head is also provided with a retaining mechanism.

[0010] Furthermore, in the present invention, the above-mentioned retaining mechanism includes a first elastic telescopic rod hinged to the above-mentioned top end and a second elastic telescopic rod hinged to the above-mentioned rod body, and one end of the above-mentioned first elastic telescopic rod away from the above-mentioned top end is hinged to the corresponding above-mentioned cross bar; one end of the above-mentioned second elastic telescopic rod away from the above-mentioned rod body is hinged to the above-mentioned first arc-shaped rake tooth, and the distance between this hinge point and the above-mentioned bottom end is less than the length of the above-mentioned first arc-shaped rake tooth.

[0011] Furthermore, in the present invention, the pushing mechanism includes a first connecting rod hinged to the first arc-shaped rake tooth, a second connecting rod hinged to the free end of the first connecting rod, and a spring arranged on the second connecting rod, and one end of the second connecting rod away from the first connecting rod is hinged to the second arc-shaped rake tooth; one end of the spring away from the second connecting rod is connected to the second arc-shaped rake tooth.

[0012] Furthermore, in the present invention, an arc-shaped groove adapted to the second arc-shaped rake teeth is provided on the first arc-shaped rake teeth, and the second arc-shaped rake teeth are slidably arranged in the arc-shaped groove; a nutrient delivery mechanism is arranged on the frame, and the nutrient delivery mechanism includes a liquid storage tank and an infusion tube, one end of the infusion tube is connected to the liquid storage tank, and the other end is connected to the arc-shaped groove.

[0013] Furthermore, in the present invention, a flow channel is provided in the first arc-shaped rake tooth, one end of the flow channel is connected to the infusion tube, and the other end is connected to the arc-shaped slide groove; a piston adapted to the flow channel is provided at one end of the second arc-shaped rake tooth close to the flow channel, and the piston is slidably connected to the flow channel.

[0014] Furthermore, in the present invention, a permanent magnet is provided at one end of the first arc-shaped rake tooth close to the arc-shaped chute, and an end of the second arc-shaped rake tooth close to the flow channel is made of ferromagnetic material.

[0015] Furthermore, in the present invention, a soil block breaking mechanism is provided on the side of the frame opposite to the mounting mechanism.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention discloses a multifunctional soil tillage equipment with adjustable depth, wherein a plurality of tillage units are installed at intervals on two cross bars respectively, and the insertion depth and angle of the rake teeth can be automatically adjusted according to different conditions in the soil (e.g., when encountering compacted soil, the forward resistance is large; when encountering stones, the stones need to be turned out; when encountering hard obstacles, the rake teeth need to go over them, etc.), so as to improve the tillage quality and reduce the wear rate of the rake teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the soil tillage equipment of the present invention when it is working;

[0019] Figure 2 yes Figure 1 A top view of

[0020] Figure 3 It is a structural schematic diagram of the soil tillage equipment of the present invention;

[0021] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0022] Figure 5 It is a structural schematic diagram of the tillage unit of the present invention;

[0023] Figure 6 yes Figure 5 Cross-sectional view at point B.

[0024] Figure 7 It is a schematic diagram of the working state of the tillage unit of the present invention;

[0025] Figure 8 It is a schematic diagram of the working state of the tillage unit of the present invention;

[0026] Fig. 9 It is a schematic diagram of the working state of the tilling unit of the present invention.

[0027] In the figure: 1011-frame; 1012-cross bar; 201-mounting mechanism; 301-tillage unit; 3011-rake head; 3012-first arc-shaped rake teeth; 3013-second arc-shaped rake teeth; 4011-first elastic telescopic rod; 4012-second elastic telescopic rod; 5011-first connecting rod; 5012-second connecting rod; 5013-spring; 6011-liquid storage tank; 6012-infusion tube; 7011-flow channel; 8011-piston; 9011-permanent magnet; 10011-soil breaking mechanism; 11011-tractor; 12011-soil; 13011-hard obstacle. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0029] Example

[0030] like Figure 1-9 The multifunctional soil tilling equipment with adjustable depth shown in the figure comprises a frame 1011 and two cross bars 1012 arranged in parallel and at intervals on the frame 1011, a mounting mechanism 201 is arranged on one side of the frame 1011; a plurality of tilling units 301 which can adjust the tilling depth according to the condition of the soil 12011 are arranged at intervals on any cross bar 1012, and the plurality of tilling units 301 on the two cross bars 1012 are arranged in an alternating manner. At the same time, a soil block breaking mechanism 10011 is arranged on the side of the frame 1011 opposite to the mounting mechanism 201.

[0031] When this tilling equipment is used to till the soil 12011, its mounting mechanism 201 is connected to the rear end of the tractor 11011. The tractor 11011 then pulls the tractor forward to move the tractor as a whole. When tilling the land, the rake tooth structure composed of the first arc-shaped rake teeth 3012 and the second arc-shaped rake teeth 3013 extends into the soil 12011 and moves along the movement direction of the tractor 11011 to till the soil 12011. At the same time, the soil block breaking mechanism 10011 installed at the rear end of the tilling equipment works synchronously to break up the large soil blocks turned out by the front tilling equipment. The soil block breaking mechanism 10011 is a prior art, and its structure is referred to as Figure 1-Figure 3 , I will not go into details here.

[0032] Specifically, in this embodiment, any tilling unit 301 includes a rake head 3011 hinged to the corresponding cross bar 1012, a first arc-shaped rake tooth 3012 hinged to the rake head 3011, and a second arc-shaped rake tooth 3013 slidably connected to the first arc-shaped rake tooth 3012; the rake head 3011 is a T-shaped structure, and the rake head 3011 includes a rod body and a top end and a bottom end arranged at one end of the rod body, the free end of the rod body is hinged to the corresponding cross bar 1012, and one end of the first arc-shaped rake tooth 3012 is hinged to the bottom end; a retaining mechanism is also provided on the rake head 3011.

[0033] In this embodiment, the retaining mechanism includes a first elastic telescopic rod 4011 hinged to the top end and a second elastic telescopic rod 4012 hinged to the rod body, and the end of the first elastic telescopic rod 4011 away from the top end is hinged to the corresponding cross bar 1012; the end of the second elastic telescopic rod 4012 away from the rod body is hinged to the first arc-shaped rake tooth 3012, and the distance between this hinge point and the bottom end is less than the length of the first arc-shaped rake tooth 3012.

[0034] Reference Figure 1 When the density of the soil 12011 is relatively small, that is, the soil 12011 is relatively loose, the resistance of the soil 12011 to the movement of the rake tooth structure in the soil 12011 is relatively small, and the tilling unit 301 maintains a fixed tilling depth and moves forward. When the soil 12011 to be tilled is compacted (the density of the soil 12011 is relatively large when it is compacted), that is, the soil 12011 is relatively dense, the resistance of the soil 12011 to the movement of the rake tooth structure composed of the first arc-shaped rake teeth 3012 and the second arc-shaped rake teeth 3013 in the soil 12011 is relatively large. Figure 5 From the perspective of the soil 12011, the first arc-shaped rake teeth 3012 rotate clockwise around the hinge point with the rake head 3011 under the action of the resistance of the soil 12011, and the second elastic telescopic rod 4012 extends during this process. During this process, the ends of the first arc-shaped rake teeth 3012 and the second arc-shaped rake teeth 3013 extend deeper into the soil 12011, so that the soil 12011 at a deeper depth can be turned out.

[0035] When the rake tooth structure composed of the first arc-shaped rake tooth 3012 and the second arc-shaped rake tooth 3013 encounters a hard obstacle 13011 (such as a stone) during the plowing process, there are three cases: In the first case, the end of the second arc-shaped rake tooth 3013 away from the first arc-shaped rake tooth 3012 is located at the upper half of the hard obstacle 13011 (such as a stone). Figure 7 In the second case, the end of the second arc-shaped rake tooth 3013 away from the first arc-shaped rake tooth 3012 is located in the lower half of the hard obstacle 13011 (as shown in FIG. Figure 8 In the third case, the hard obstacle 13011 is deeply rooted in the soil 12011 and cannot be pushed by the first arc-shaped rake teeth 3012 or the second arc-shaped rake teeth 3013 (as shown in FIG. Fig. 9 shown).

[0036] Reference Figure 7 When the end of the second arc-shaped rake tooth 3013 is located at the upper part of the hard obstacle 13011 (such as a stone), in the prior art, a horizontal push method is generally adopted, even if the rake head 3011 (the turning unit 301 in this embodiment) is movable. Since the movable fulcrum of the rake head 3011 is not unique, under the action of its gravity, it is still close to a horizontal push, and the force point of the hard obstacle 13011 is at its upper part, it is easy to push the hard obstacle 13011 deeper into the ground, and it is not convenient to turn the hard obstacle 13011 out. This causes the crops to be affected by the hard obstacle 13011 during their growth, and it is difficult to fully absorb the nutrients of the soil 12011. In the present device, Figure 7From the perspective of , the rake tooth structure composed of the first arc-shaped rake teeth 3012 and the second arc-shaped rake teeth 3013 has a fixed rotation point (the hinge point between the first arc-shaped rake teeth 3012 and the rake head 3011). When the tilling unit 301 moves to the right driven by the tractor 11011 and encounters the resistance of the hard obstacle 13011, the corresponding rake teeth in the front row close to the side of the mounting mechanism 201 rotate clockwise around this hinge point. This action will flip the hard obstacle 13011 upward (the hard obstacle 13011 also rotates clockwise under the action of the rake teeth), thereby shortening the distance between the end of the rake head 3011 in the rear row and the bottom end of the hard obstacle 13011. As the rake head 3011 in the rear row repeats this action, it is helpful to remove the hard obstacle 13011.

[0037] Reference Figure 8 When the end of the second arc-shaped rake tooth 3013 is located at the lower half of the hard obstacle 13011, the arc-shaped design of the first arc-shaped rake tooth 3012 and the second arc-shaped rake tooth 3013 makes it easier to bring out the hard obstacle 13011. It should be noted that, since the front and rear rows of the plurality of tilling units 301 are staggered, and the hard obstacle 13011 is gradually subjected to unbalanced force under the influence of its shape and the geological conditions of the soil 12011 during the process of being pushed, the hard obstacle 13011 is gradually affected by the unbalanced force, so that the hard obstacle 13011 moves to both sides of the rake head 3011 and gradually contacts the rear row of tilling units 301, so as to ensure that the hard obstacle 13011 is gradually separated from the soil 12011 during the tilling process, and is turned out.

[0038] Reference Fig. 9 When the hard obstacle 13011 cannot be pushed out by the rake teeth, the prior art often adopts a flat push method. Although the rake head 3011 has a high hardness and can crush the hard obstacle 13011, it is also easy to cause wear of the rake teeth. At the same time, in this case, the tractor 11011 needs to provide greater power to overcome the resistance of the hard obstacle 13011, thereby increasing energy consumption. Fig. 9From the perspective of the present invention, when the hard obstacle 13011 cannot be pushed out, if the hard obstacle 13011 is located at a lower height above the end of the second arc-shaped rake tooth 3013, after the rake tooth structure composed of the first arc-shaped rake tooth 3012 and the second arc-shaped rake tooth 3013 contacts the hard obstacle 13011, the first arc-shaped rake tooth 3012 rotates clockwise at a certain angle with the hinge point between itself and the rake head 3011 as the center of the circle to pass over the hard obstacle 13011. It should be noted that in this process, the telescopic amount of the first elastic telescopic rod 4011 and the second elastic telescopic rod 4012 does not change, or the amount of change is very small, only the rake tooth structure composed of the first arc-shaped rake tooth 3012 and the second arc-shaped rake tooth 3013 rotates clockwise at a certain angle with the hinge point between the first arc-shaped rake tooth 3012 and the rake head 3011 as the center of the circle. Therefore, the swing amplitude of the tilling unit 301 in this case is small, which is conducive to subsequent tilling operations. When the hard obstacle 13011 is at a relatively high height above the end of the second arc-shaped rake tooth 3013, as the tractor 11011 moves rightward, the resistance generated by the hard obstacle 13011 increases, causing the rake head 3011 to rotate clockwise with the hinge point between the rake head 3011 and the crossbar 1012 as the center of the circle, thereby increasing the swing angle to pass over the current hard obstacle 13011. In this process, the first elastic telescopic rod 4011 shortens and the second elastic telescopic rod 4012 lengthens, so that the rake head 3011 can swing at a larger angle to pass over the current hard obstacle 13011. After passing over the obstacle, the two elastic telescopic rods return to a balanced state.

[0039] Generally speaking, loose soil 12011 is due to its lower density, and materials such as dead wood and weeds fall to the ground and enter the soil 12011 more easily, and these materials decompose in the soil 12011, thereby increasing the nutrition of the soil 12011. Hardened soil 12011 is due to its higher density, and materials such as dead wood and weeds fall to the ground and are difficult to enter the hardened soil 12011, which will cause the hardened soil 12011 to lack organic matter, etc., causing the nutrient content of the soil 12011 to reduce. Therefore, when plowing the hardened soil 12011, it is necessary to add corresponding nutrients in the soil 12011 to improve the hardened soil 12011. In order to address the above problems, a pushing mechanism is also installed on the first arc rake tooth 3012 in the present embodiment, and the pushing mechanism is connected with the second arc rake tooth 3013.

[0040] Specifically, the pushing mechanism includes a first connecting rod 5011 hinged to the first arc-shaped rake tooth 3012, a second connecting rod 5012 hingedly arranged at the free end of the first connecting rod 5011, and a spring 5013 arranged on the second connecting rod 5012, and one end of the second connecting rod 5012 away from the first connecting rod 5011 is hinged to the second arc-shaped rake tooth 3013; one end of the spring 5013 away from the second connecting rod 5012 is connected to the second arc-shaped rake tooth 3013.

[0041] In this embodiment, an arc-shaped groove adapted to the second arc-shaped rake tooth 3013 is provided on the first arc-shaped rake tooth 3012, and the second arc-shaped rake tooth 3013 is slidably arranged in the arc-shaped groove; a nutrient delivery mechanism is arranged on the frame 1011, and the nutrient delivery mechanism includes a liquid storage tank 6011 and an infusion tube 6012, one end of the infusion tube 6012 is connected to the liquid storage tank 6011, and the other end is connected to the arc-shaped groove.

[0042] In this embodiment, a flow channel 7011 is opened in the first arc-shaped rake tooth 3012, one end of the flow channel 7011 is connected to the infusion tube 6012, and the other end is connected to the arc-shaped slide groove; a piston 8011 adapted to the flow channel 7011 is provided at one end of the second arc-shaped rake tooth 3013 close to the flow channel 7011, and the piston 8011 is slidably connected to the flow channel 7011.

[0043] In this embodiment, a permanent magnet 9011 is provided at one end of the first arc-shaped rake tooth 3012 close to the arc-shaped slide groove, and an end of the second arc-shaped rake tooth 3013 close to the flow channel 7011 is made of ferromagnetic material.

[0044] Reference Figure 4 and Figure 5 When the rake teeth encounter loose soil 12011 during tillage operation, the second connecting rod 5012 tends to rotate clockwise around the hinge point between itself and the second arc-shaped rake teeth 3013 under the action of the spring 5013, so that the piston 8011 at one end of the second arc-shaped rake teeth 3013 is always inserted in the flow channel 7011 to prevent the nutrient in the flow channel 7011 from flowing out. At the same time, the magnetic attraction between the permanent magnet 9011 and the end of the second arc-shaped rake teeth 3013 further improves the stability of the connection here.

[0045] When the rake teeth encounter compacted soil 12011 during the tillage operation (when the soil 12011 is too hard), the first arc-shaped rake teeth 3012 rotate clockwise around the hinge point between the first rake teeth 3012 and the rake head 3011 and reach the maximum rotation angle. Under the reaction force of the resistance of the soil 12011, the compacted soil 12011 pushes the second connecting rod 5012, causing the second connecting rod 5012 to rotate counterclockwise around the hinge point between the second connecting rod 5012 and the second arc-shaped rake teeth 3013. When the second connecting rod 5012 rotates (the angle between the second connecting rod 5012 and the first arc-shaped rake teeth 3012 gradually decreases), it rotates with its bottom end as the center of the circle, and the other end moves closer to the first arc-shaped rake teeth 3012. In this process, since one end of the first connecting rod 5011 is hinged to the first arc-shaped rake tooth 3012, and the other end is hinged to one end of the second connecting rod 5012, when the second connecting rod 5012 rotates, its bottom end will drive the second arc-shaped rake tooth 3013 to extend along the arc-shaped slide groove on the first arc-shaped rake tooth 3012 to further increase its depth into the soil 12011. It should be noted that the resistance of the spring 5013 can only be overcome when the soil 12011 reaches a certain hardness, and the second connecting rod 5012 can rotate. This is because the second connecting rod 5012 needs to overcome two resistances in order to rotate, one is the elastic force of the spring 5013 (the spring 5013 is used for the reset action of the second connecting rod 5012, and when encountering loose soil 12011, the second connecting rod 5012 can maintain Figure 5 The other is the magnetic attraction between the permanent magnet 9011 and the end of the second arc-shaped rake tooth 3013. This magnetic attraction is used to improve the stability of the connection between the second arc-shaped rake tooth 3013 and the first arc-shaped rake tooth 3012. Figure 6 After the second connecting rod 5012 swings, the second arc-shaped rake teeth 3013 extend outward synchronously and drive the piston 8011 to disengage from the flow channel 7011, so that the nutrients in the infusion tube 6012 can be sprayed into the compacted soil 12011 through the flow channel 7011 and the arc-shaped chute in sequence to improve the compacted (highly compacted) soil 12011. The magnetic force of the permanent magnet 9011 acting on the end of the second arc-shaped rake teeth 3013 prevents the piston 8011 from disengaging from the flow channel 7011 when the rake tooth structure composed of the first arc-shaped rake teeth 3012 and the second arc-shaped rake teeth 3013 moves in the uncompacted soil 12011, thereby causing a waste of nutrients in the soil 12011.

[0046] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A multifunctional soil tillage device with adjustable depth, comprising a frame (1011) and two cross bars (1012) arranged on the frame (1011) in parallel and at intervals, wherein a mounting mechanism (201) is arranged on one side of the frame (1011); characterized in that: A plurality of tilling units (301) capable of adjusting the tilling depth according to the condition of the soil (12011) are arranged at intervals on any of the cross bars (1012), and the plurality of tilling units (301) on the two cross bars (1012) are arranged in a staggered manner.

2. The multifunctional soil tillage equipment with adjustable depth according to claim 1, characterized in that: Any of the tilling units (301) comprises a rake head (3011) hinged to the corresponding cross bar (1012), a first arc-shaped rake tooth (3012) hinged to the rake head (3011), a second arc-shaped rake tooth (3013) slidably connected to the first arc-shaped rake tooth (3012), and a pushing mechanism arranged on the first arc-shaped rake tooth (3012), wherein the pushing mechanism is connected to the second arc-shaped rake tooth (3013); the rake head (3011) is a T-shaped structure, comprising a rod body and a top end and a bottom end arranged at one end of the rod body, the free end of the rod body being hinged to the corresponding cross bar (1012), and one end of the first arc-shaped rake tooth (3012) being hinged to the bottom end; and a holding mechanism is also arranged on the rake head (3011).

3. The multifunctional soil tillage equipment with adjustable depth according to claim 2, characterized in that: The holding mechanism comprises a first elastic telescopic rod (4011) hinged to the top end and a second elastic telescopic rod (4012) hinged to the rod body, wherein one end of the first elastic telescopic rod (4011) away from the top end is hinged to the corresponding cross bar (1012); one end of the second elastic telescopic rod (4012) away from the rod body is hinged to the first arc-shaped rake tooth (3012), and the distance between the hinge point and the bottom end is less than the length of the first arc-shaped rake tooth (3012).

4. The multifunctional soil tillage equipment with adjustable depth according to claim 2 or 3, characterized in that: The pushing mechanism comprises a first connecting rod (5011) hinged to the first arc-shaped rake tooth (3012), a second connecting rod (5012) hinged to the free end of the first connecting rod (5011), and a spring (5013) arranged on the second connecting rod (5012), wherein one end of the second connecting rod (5012) away from the first connecting rod (5011) is hinged to the second arc-shaped rake tooth (3013); and one end of the spring (5013) away from the second connecting rod (5012) is connected to the second arc-shaped rake tooth (3013).

5. The multifunctional soil tillage equipment with adjustable depth according to claim 4, characterized in that: The first arc-shaped rake teeth (3012) are provided with an arc-shaped slide groove adapted to the second arc-shaped rake teeth (3013), and the second arc-shaped rake teeth (3013) are slidably arranged in the arc-shaped slide groove; the frame (1011) is provided with a nutrient delivery mechanism, and the nutrient delivery mechanism includes a liquid storage tank (6011) and an infusion tube (6012), one end of the infusion tube (6012) is connected to the liquid storage tank (6011), and the other end is connected to the arc-shaped slide groove.

6. The multifunctional soil tillage equipment with adjustable depth according to claim 5, characterized in that: A flow channel (7011) is provided in the first arc-shaped rake tooth (3012), one end of the flow channel (7011) is connected to the infusion tube (6012), and the other end is connected to the arc-shaped slide groove; a piston (8011) adapted to the flow channel (7011) is provided at one end of the second arc-shaped rake tooth (3013) close to the flow channel (7011), and the piston (8011) is slidably connected to the flow channel (7011).

7. The multifunctional soil tillage equipment with adjustable depth according to claim 6, characterized in that: A permanent magnet (9011) is provided at one end of the first arc-shaped rake tooth (3012) close to the arc-shaped slide groove, and an end of the second arc-shaped rake tooth (3013) close to the flow channel (7011) is made of ferromagnetic material.

8. The multifunctional soil tillage equipment with adjustable depth according to claim 1, characterized in that: A soil block breaking mechanism (10011) is provided on the side of the frame (1011) opposite to the mounting mechanism (201).

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