A floating plate depth-limited seeding and fertilization device

Abstract

This invention discloses a floating-plate depth-limiting seeding and fertilization device, comprising a frame, a floating plate, and fertilizer trough marking blocks and seed trough marking blocks located behind the floating plate; the rear sides of the fertilizer trough marking blocks and seed trough marking blocks are respectively connected to fertilizer inlet pipe connectors and seed inlet pipe connectors; it also includes a metal seat fixed to the rear side of the floating plate; a connecting seat is fixed on the frame; the connecting seat has a lower extension and a forward extension; the middle part of the metal seat is rotatably connected to the lower end of the lower extension; a rocker arm is rotatably mounted on the front end of the forward extension, and the rocker arm is connected to the front end of the metal seat through a bracket; and the forward extension has an elastic mechanism acting on the rocker arm. In this invention, the floating plate can perform adaptive contour-following motion relative to the frame, the floating plate can better compact the soil it passes through and limit the depth, and the metal seat can make the structure stable, and the floating plate is a vulnerable part that is easy to replace.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a floating plate depth-limiting sowing and fertilization device. Background Technology

[0002] In current agriculture, to improve sowing and fertilization efficiency, agricultural machinery is used for these operations. However, when sowing and fertilizing in wet soil, the creation of seed and fertilizer trenches is challenging, making it difficult to ensure uniform trench depth and consequently, the quality of sowing and fertilization. Existing technology, such as patent CN219288140U, discloses a floating plate structure for a rice direct seeding machine. This structure features a sowing trough on the floating plate and a furrowing wedge on the front side of the lower end of the trough. During forward movement, the furrowing wedge creates a trench for the rice seeds to fall into, ensuring they are not on the surface of the paddy field. The furrowing baffle prevents the trench from being quickly silted up by mud on both sides. However, this solution has the following drawbacks: the floating plate is generally fixed to the frame, making it difficult to adapt to uneven terrain; furthermore, the floating plate is a one-piece injection-molded structure, and the furrowing wedge is prone to wear, resulting in a short overall service life. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a floating plate depth-limiting sowing and fertilization device with long service life and contour-following ability to ensure the quality of sowing and fertilization.

[0004] Technical solution: To achieve the above objectives, the floating plate depth-limited seeding and fertilization device of the present invention includes a frame, a floating plate, and seed trough marking blocks and fertilizer trough marking blocks located on the rear side of the floating plate; the rear sides of the seed trough marking blocks and the fertilizer trough marking blocks are respectively connected to a seed inlet pipe connector and a fertilizer inlet pipe connector; wherein, the floating plate is made of plastic.

[0005] It also includes a metal seat fixed to the rear side of the float; a connecting seat is fixed on the frame; the connecting seat has a lower extension and a forward extension;

[0006] The middle part of the metal base is rotatably connected to the lower end of the lower extension; a rocker arm is rotatably mounted on the front end of the forward extension, and the rocker arm is connected to the front end of the metal base through a bracket; and the forward extension has an elastic mechanism acting on the rocker arm. The aforementioned front and rear positions are based on the direction of movement of the sowing and fertilizing device during operation.

[0007] Furthermore, both the seed trough dividing block and the fertilizer trough dividing block are fixed to the rear end of the metal base.

[0008] The aforementioned connecting seat has a T-shaped structure, consisting of a vertical member and a horizontal member, which are welded together. The upper end of the vertical member is higher than the horizontal member and is bolted to the frame; its lower extension is part of the vertical member. The rear end of the horizontal member is bolted to the frame, and its forward extension is part of the horizontal member. Thus, the connecting seat is securely fixed to the frame. Both the vertical and horizontal members are U-shaped steel.

[0009] Furthermore, the middle part of the rocker arm is rotatably connected relative to the forward extension, and one end of it is rotatably connected to the upper end of the support; the elastic mechanism acts on the other end of the rocker arm; the elastic mechanism includes a screw and a spring sleeved on the screw, the spring causing the rocker arm and the forward extension to have a tendency to move closer together. In the initial state, the rocker arm and the forward extension are in contact. When the front end of the float is subjected to a sufficiently large upward force, the float can generate adaptive floating. The spring causes the rocker arm and the forward extension to have a tendency to return to the initial state. At the same time, the rocker arm and the support act on the float, applying a downward force to the float.

[0010] Furthermore, the support is a bent support with an open bottom, and its lower side has two symmetrically arranged transverse hinges. Two first retainers, acting on the two transverse hinges respectively, are fixed on the metal base. The transverse hinges and the first retainers are loosely fitted, allowing the transverse hinges to not only rotate relative to the first retainers but also slide laterally relative to them. In addition, the support has an inverted U-shaped structure, narrow at the top and wide at the bottom. A second retainer acting on its top crossbar is mounted on the rocker arm, allowing the top crossbar to both rotate relative to the rocker arm and move axially. Furthermore, the support is elastic, providing a buffering and vibration-absorbing effect. Thus, the support and the elastic mechanism form a two-stage elastic buffer, effectively expanding the floating range of the float and preventing damage from impacts.

[0011] Furthermore, the downward convex distance of the seed trough marking block is greater than the downward convex distance of the fertilizer trough marking block.

[0012] Furthermore, a U-shaped guide plate with a rearward opening is installed on the rear side of the seed trough block. The upper half of the guide plate has a uniform width, and the lower half has two symmetrically arranged rearward extensions, with a gradually widening gap between the two rearward extensions. The seed infeed pipe connector is connected to the uniform width section on the front side of the guide plate. During field operations, the fertilizer trough block can create a stepped fertilizer trough on the ground that is narrower at the top and wider at the bottom. After the fertilizer is put into the trough, the top of the trough collapses to bury the fertilizer, which can meet the need for deep fertilizer application.

[0013] Furthermore, the seeding pipe connector has a first U-shaped guide portion located on the lower side that mates with the equal-width portion on the front side of the guide plate.

[0014] Furthermore, the fertilizer inlet connector has a second U-shaped guide portion located on the lower side, through which fertilizer is fed into the fertilizer trough cut out by the fertilizer trough block.

[0015] Furthermore, the float has a main plate section at the front and a tail section located behind the main plate section. The metal base has an upwardly protruding portion in the middle. The protruding portion straddles the tail section, and the two are fixed together by screws. The metal base has two symmetrically arranged supports extending forward to the upper surface of the main plate section, and the front ends of the supports are fixed to corresponding positions on the main plate section by bolts. A first retainer is fixed to the front ends of the supports. This structure ensures a tight and reliable fixation between the float and the metal base.

[0016] Beneficial Effects: The floating plate depth-limiting seeding and fertilizing device of the present invention, through the floating installation structure composed of a connecting seat, a rocker arm, a bracket, and an elastic mechanism between the frame and the metal base, allows the floating plate to adaptively float relative to the frame, conforming to the terrain. Through the solution of the present invention, the floating plate can better compact the soil and limit the depth, ensuring that the seed trough and fertilizer trough blocks are cut in soil with consistent compaction. Furthermore, the metal base ensures structural stability, and the floating plate, as a vulnerable component, is easy to replace. Attached Figure Description

[0017] Figure 1 A first-view structural diagram of a floating-plate depth-limited seeding and fertilization device;

[0018] Figure 2 A second-view structural diagram of a floating plate depth-limited seeding and fertilization device;

[0019] Figure 3 A cross-sectional view of a floating-plate depth-limited seeding and fertilization device;

[0020] Figure 4 for Figure 2 Enlarged structural diagram of section A.

[0021] In the diagram: 1-Frame; 2-Float plate; 2a-Main board section; 2b-Plate tail; 3-Seed trough section; 4-Fertilizer trough section; 5-Seed feeding pipe connector; 5a-First U-shaped guide section; 6-Fertilizer feeding pipe connector; 6a-Second U-shaped guide section; 7-Metal seat; 7a-Protrusion; 7b-Support; 7c-First retainer; 8-Connecting seat; 81-Vertical rod; 8a-Lower extension; 82-Horizontal rod; 8b-Forward extension; 9-Wing rod; 9a-Second retainer; 10-Bracket; 10a-Horizontal hinge; 11-Elastic mechanism; 11a-Screw; 11b-Spring; 12-Guide plate; 12a-Rearward extension. Detailed Implementation

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] like Figure 1 The floating plate depth-limited seeding and fertilization device shown includes a frame 1, a floating plate 2, and fertilizer trough marking blocks 3 and seed trough marking blocks 4 located on the rear side of the floating plate 2; the rear sides of the fertilizer trough marking blocks 3 and the seed trough marking blocks 4 are respectively connected to fertilizer inlet pipe joint 5 and seed inlet pipe joint 6; wherein, the floating plate 2 is made of plastic.

[0024] The sowing and fertilizing device also includes a metal seat 7 fixed to the rear side of the floating plate 2; a connecting seat 8 is fixed on the frame 1; the connecting seat 8 has a lower extension 8a and a forward extension 8b; the middle part of the metal seat 7 is rotatably connected to the lower end of the lower extension 8a; a rocker arm 9 is rotatably mounted on the front end of the forward extension 8b, and the rocker arm 9 is connected to the front end of the metal seat 7 through a bracket 10; and the forward extension 8b has an elastic mechanism 11 acting on the rocker arm 9. The aforementioned front and rear positions are based on the direction of movement of the sowing and fertilizing device during operation. The fertilizer trough marking block 3 and the seed trough marking block 4 are both fixed to the rear end of the metal seat 7.

[0025] In the above structure, by setting a floating installation structure consisting of a connecting seat 8, a rocker arm 9, a bracket 10, and an elastic mechanism 11 between the frame 1 and the metal base 7, the float 2 can adaptively float relative to the frame 1 to adapt to the terrain and perform contour-following movements. Through this invention, the float 2 can better compact the soil and limit its depth, allowing the fertilizer trench blocks 3 and seed trench blocks 4 to be trenched in soil with consistent compaction. Furthermore, the metal base 7 ensures structural stability, and the float 2, as a vulnerable component, is easy to replace.

[0026] The aforementioned connecting seat 8 has a T-shaped structure, consisting of a vertical member 81 and a horizontal member 82, which are welded together. The upper end of the vertical member 81 is higher than the horizontal member 82 and is fixed to the frame 1 by bolts; the lower extension 8a is part of the vertical member 81. The rear end of the horizontal member 82 is bolted to the frame 1, and the forward extension 8b is part of the horizontal member 82. Thus, the connecting seat 8 is securely fixed relative to the frame 1. Both the vertical member 81 and the horizontal member 82 are U-shaped steel.

[0027] Preferably, the middle part of the rocker arm 9 is rotatably connected relative to the forward extension 8b, and one end of it is rotatably connected to the upper end of the bracket 10; the elastic mechanism 11 acts on the other end of the rocker arm 9; the elastic mechanism 11 includes a screw 11a and a spring 11b sleeved on the screw 11a. The spring 11b causes the rocker arm 9 and the forward extension 8b to have a tendency to move closer to each other. In the initial state, the rocker arm 9 and the forward extension 8b are close together. When the front end of the float 2 is subjected to a sufficiently large upward force, the float 2 can generate adaptive floating. The spring 11b causes the rocker arm 9 and the forward extension 8b to have a tendency to return to the initial state. At the same time, the rocker arm 9 and the bracket 10 act on the float 2 to apply a downward force to the float 2.

[0028] Preferably, the support 10 is a bent support with an open bottom, and has two symmetrically arranged transverse hinge portions 10a on its lower side. Two first retainers 7c are fixed on the metal base 7, each acting on one of the two transverse hinge portions 10a. The transverse hinge portions 10a and the first retainers 7c are loosely fitted, allowing the transverse hinge portions 10a to rotate relative to the first retainers 7c and also slide laterally relative to them. Furthermore, the support 10 has an inverted U-shaped structure, narrow at the top and wide at the bottom. A second retainer 9a is installed on the rocker arm 9, acting on its top crossbar. The top crossbar can rotate relative to the rocker arm 9 and also move axially. In addition, the support 10 is elastic, providing cushioning and shock absorption. Thus, the support 10 and the elastic mechanism 11 form a two-stage elastic buffer, effectively expanding the floating range of the float 2 and preventing damage to the float 2 from impacts.

[0029] Preferably, the downward convex distance of the fertilizer trough marking block 3 is greater than the downward convex distance of the seed trough marking block 4.

[0030] Preferably, a U-shaped guide plate 12 with a rearward opening is installed on the rear side of the fertilizer trough block 3. The upper half of the guide plate 12 has a uniform width, and the lower half of the guide plate 12 has two symmetrically arranged rearward extensions 12a, with a gradually widening gap between the two rearward extensions 12a. The fertilizer inlet pipe connector 5 is connected to the uniform width section on the front side of the guide plate 12. During field operations, the fertilizer trough block 3 can create a stepped fertilizer trough on the ground that is narrower at the top and wider at the bottom. After the fertilizer is put into the trough, the top of the trough collapses to bury the fertilizer, which can meet the need for deep application of fertilizer.

[0031] Preferably, the fertilizer inlet connector 5 has a first U-shaped guide portion 5a located on the lower side, which is aligned with the equal-width portion on the front side of the guide plate 12.

[0032] Preferably, the seed inlet connector 6 has a second U-shaped guide portion 6a located on the lower side, through which fertilizer is ingested into the fertilizer trough opened by the seed trough block 4.

[0033] Furthermore, the float plate 2 has a front main plate portion 2a and a tail plate 2b located behind the main plate portion 2a. The metal base 7 has an upwardly protruding protrusion 7a in the middle. The protrusion 7a straddles the tail plate 2b and is fixed to it by screws. A lower extension 8a is connected to a U-shaped hinge bracket fixed to the protrusion 7a. The metal base 7 has two symmetrically arranged supports 7b extending forward to the upper surface of the main plate portion 2a, and the front ends of the supports 7b are fixed to the corresponding positions of the main plate portion 2a by bolts. A first retainer 7c is fixed to the front ends of the supports 7b. This structure ensures that the float plate 2 and the metal base 7 are tightly fixed together, resulting in high reliability.

[0034] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A floating plate depth-limited seeding and fertilization device, comprising a frame (1), a floating plate (2), and fertilizer trough marking blocks (3) and seed trough marking blocks (4) located on the rear side of the floating plate (2); the rear sides of the fertilizer trough marking blocks (3) and the seed trough marking blocks (4) are respectively connected to fertilizer inlet pipe connectors (5) and seed inlet pipe connectors (6); characterized in that: It also includes a metal seat (7) fixed to the rear side of the float (2); a connecting seat (8) is fixed on the frame (1); the connecting seat (8) has a lower extension (8a) and a forward extension (8b); The middle part of the metal base (7) is rotatably connected to the lower end of the lower extension (8a); a rocker arm (9) is rotatably mounted on the front end of the forward extension (8b), the middle part of the rocker arm (9) is rotatably connected relative to the forward extension (8b), the forward extension (8b) has an elastic mechanism (11) acting on the rocker arm (9), one end of the rocker arm (9) is rotatably connected to the upper end of the bracket (10); the elastic mechanism (11) acts on the other end of the rocker arm (9). The bracket (10) is a bent bracket with an open bottom, and has two symmetrically arranged transverse hinges (10a) on its lower side; the metal base (7) is fixed with two first retainers (7c) that act on the two transverse hinges (10a) respectively, and the transverse hinges (10a) and the first retainers (7c) are loosely fitted, and the transverse hinges (10a) can rotate and slide laterally relative to the first retainers (7c); The elastic mechanism (11) includes a screw (11a) and a spring (11b) sleeved on the screw (11a). The spring (11b) causes the rocker arm (9) and the forward extension (8b) to have a tendency to move closer together. In the initial state, the rocker arm (9) and the forward extension (8b) are in contact. The bracket (10) is elastic, and the bracket (10) and the elastic mechanism (11) constitute a secondary elastic buffer. The metal base (7) has an upwardly protruding protrusion (7a) in the middle; the protrusion (7a) straddles the tail (2b) of the float (2) and the two are fixed together by screws; the metal base (7) has two symmetrically arranged supports (7b) extending forward to the upper surface of the main body (2a) of the float (2), the front end of the supports (7b) being fixed to the main body (2a) by bolts; the first retainer (7c) is fixed to the front end of the supports (7b); Both the fertilizer trough marking block (3) and the seed trough marking block (4) are fixed to the rear end of the metal base (7); the downward protrusion distance of the fertilizer trough marking block (3) is greater than that of the seed trough marking block (4).

2. The float-and-depth-limit seeding and fertilizing apparatus of claim 1, wherein, The connecting seat (8) is a T-shaped structure, which consists of a vertical rod (81) and a horizontal rod (82); the upper end of the vertical rod (81) is fixed to the frame (1) by bolts, and the lower extension (8a) is a part of the vertical rod (81); the rear end of the horizontal rod (82) is connected to the frame (1) by bolts, and the forward extension (8b) is a part of the horizontal rod (82); both the vertical rod (81) and the horizontal rod (82) are U-shaped steel.

3. The float-and-depth-limit planter fertilizer placement device of claim 1, wherein, The rear side of the trough block (3) is equipped with a U-shaped guide plate (12) with a rearward opening. The front side of the guide plate (12) has a uniform width structure. The rear side of the guide plate (12) has two symmetrically arranged rearward extensions (12a). A gradually widening gap is formed between the two rearward extensions (12a).

4. The float-and-depth-limit planter fertilizer placement device of claim 3, wherein, The fertilizer inlet connector (5) has a first U-shaped guide portion (5a) located on the lower side and connected to the equal-width structure on the front side of the guide plate (12).

5. The floating plate depth-limited seeding and fertilization device according to claim 1, characterized in that, The seeding tube connector (6) has a second U-shaped guide (6a) located on the lower side.

Images