Rice seedling planting device

Abstract

The utility model relates to the technical field of rice cultivation, in particular to a rice seedling raising and planting device which comprises a seedling raising and planting mechanism. The driving mechanism is fixed at one end of the traction frame and can simultaneously drive a plurality of mechanisms; the spacing adjusting mechanisms are arranged on the driving mechanism in a sliding mode and can adjust the planting spacing of the rice seedlings; and the seedling inserting mechanism is fixed on the spacing adjusting mechanism, can clamp rice seedlings and is vertically inserted into soil. According to the seedling transplanting device, the seedling transplanting mechanism is equal in plant spacing regardless of the pulling speed of a person, one-time field planting can be carried out when the second annular frame rotates by a circle, the uniformity and stability of seedling transplanting are effectively improved, and the situation that the spacing is not uniform due to the fact that the pulling speed of the person is not uniform and the speed of a mechanical claw is fixed is avoided; resistance can be increased, the second ring frame is prevented from sliding on the soil, the arc-shaped plate can prevent the second ring frame from falling into the soil too deep and causing no rotation, and the working stability is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rice cultivation, in particular to a rice seedling planting device. Background Art

[0002] As agricultural production continues to modernize, rice cultivation, as an important part of food production, places increasing demands on related planting techniques and equipment. Rice seedling planters, as a key tool, play an important role in improving rice planting efficiency.

[0003] Currently, many rice planters use mechanical claws for planting. This design has shown certain advantages in large-scale planting scenarios, enabling efficient and stable planting operations. However, it has exposed some problems in small-scale planting operations.

[0004] In small plots, the rice planter is usually pulled by a person. Because the human movement speed cannot be as uniform and stable as a machine, there are inevitably variations in speed. In contrast, the planting speed of the mechanical claw is relatively fixed. This difference inevitably leads to inconsistent plant spacing.

[0005] This inconsistent spacing between plants can have a range of impacts on rice production. If the spacing between plants is too small, the rice plants will block each other's sunlight, preventing the lower leaves from receiving sufficient light. This will significantly reduce the efficiency of photosynthesis and the accumulation of photosynthetic products. At the same time, poor ventilation will increase field humidity. This high-humidity environment creates favorable conditions for the growth and spread of diseases such as rice blast and sheath blight. Conversely, if the spacing between plants is too large, land and light resources cannot be fully utilized, the number of rice plants per unit area will decrease, and ultimately lead to lower rice yields. Utility Model Content

[0006] In order to overcome the above-mentioned technical problems, the practical purpose of the present invention is to provide a rice seedling planting device. Through the seedling planting mechanism, the spacing between plants is equal regardless of the speed of the personnel pulling. When the ring frame 2 rotates one circle, one planting can be carried out, which effectively improves the uniformity and stability of the seedling planting and avoids the different pulling speeds of the personnel and the fixed speed of the mechanical claw, which leads to different spacing. In addition, square plates and curved plates are provided to increase resistance and prevent the ring frame 2 from sliding on the soil. The curved plate can prevent the ring frame 2 from sinking too deep into the soil, resulting in non-rotation, thereby effectively improving the working stability.

[0007] A rice seedling planting device, comprising:

[0008] Seedling planting mechanism, including traction frame;

[0009] Also includes:

[0010] The driving mechanism is fixed to one end of the traction frame and can drive multiple mechanisms at the same time;

[0011] There are several spacing adjustment mechanisms that slide on the driving mechanism and can adjust the planting spacing of rice seedlings;

[0012] The seedling planting mechanism is fixed on the spacing adjustment mechanism, can clamp the rice seedlings, and insert them vertically into the soil.

[0013] Furthermore, the driving mechanism includes:

[0014] There are two V-shaped frames, which are respectively fixed to the outer walls on both sides of the traction frame;

[0015] A slide rail 1 is fixed on the outer wall between the two V-shaped frames, and the outer wall of the slide rail 1 is provided with a plurality of circular holes 1 at equal intervals;

[0016] The motor is fixed on one of the outer walls of the V-shaped frame. The rotating shaft of the motor is fixedly connected to the round rod 1, and the outer wall of the round rod 1 is rotatably connected to the outer wall of the V-shaped frame.

[0017] Preferably, the spacing adjustment mechanism includes:

[0018] The U-shaped frame is slidably plugged into the interior of the slide rail, the outer wall of the U-shaped frame is screwed and connected with a threaded rod, one end of the threaded rod is fixedly connected to a torsion block, and the outer wall of the torsion block is plugged into the circular hole.

[0019] Preferably, the spacing adjustment mechanism includes:

[0020] A square rod is fixed to the outer wall of the U-shaped frame, and one end of the square rod is fixedly connected to the outer wall of the ring frame;

[0021] Ring frame 2 rotates on the outer wall of ring frame 1, and a plurality of round rods 3 are inserted into the outer wall of ring frame 2 at equal angles. A spring 1 is fixedly connected between the outer wall of one end of the round rod 3 and the inner wall of ring frame 2.

[0022] Preferably, the spacing adjustment mechanism includes:

[0023] The second round rod is rotated on one end of the U-shaped frame, and a thread groove is opened on the outer wall of the second round rod near the center;

[0024] Arc-shaped frame 1, fixed at one end of the U-shaped frame;

[0025] The conical frame is screwed onto the thread groove, and the outer wall of the conical frame is fixedly connected with a second square rod.

[0026] Preferably, the spacing adjustment mechanism includes:

[0027] A block is fixed to one end of the round rod, wherein the outer wall of the block is fixedly connected to a square plate, and the outer wall of the square plate is fixedly connected to an arc-shaped plate;

[0028] Round hole 2 is opened on one of the blocks.

[0029] Preferably: the seedling planting mechanism includes:

[0030] A fourth round rod slides inside the second round hole, and a second spring is fixedly connected between the outer wall of one end of the fourth round rod and the outer wall of the corresponding block;

[0031] The second arc frame is fixed to the outer wall of the first arc frame, the outer wall of the second arc frame is fixedly connected to the second slide rail, and the second slide rail is slidably plugged into the second square rod;

[0032] The grabbing unit rotates on the two outer walls of the round rod, and a coil spring is fixedly connected between the outer wall of one side of the grabbing unit and the outer wall of one end of the U-shaped frame.

[0033] Beneficial effects of the utility model:

[0034] 1. The seedling planting mechanism ensures that the spacing between plants is equal regardless of the speed at which the personnel pulls. When the ring frame 2 rotates one circle, one planting can be carried out, which effectively improves the uniformity and stability of the seedling planting and avoids the uneven pulling speed of the personnel and the fixed speed of the mechanical claw, which leads to uneven spacing. In addition, square plates and curved plates are provided to increase resistance and prevent the ring frame 2 from sliding on the soil. The curved plate can prevent the ring frame 2 from sinking too deep into the soil, resulting in non-rotation, thereby effectively improving working stability.

[0035] 2. By twisting the twist block, the threaded rod and the U-shaped frame are rotated and separated, the U-shaped frame is released from the limit, and the U-shaped frame is pushed to the specified position. The twist block is twisted to screw the threaded rod and the U-shaped frame together, and the twist block is plugged into the round hole to limit it, which effectively improves the convenience of operation. The round holes are opened at equal intervals, which is convenient for personnel to quickly locate and avoid uneven spacing, effectively improving the stability of adjustment.

[0036] 3. The spacing adjustment mechanism can extend or contract the round rods in three directions to accurately adjust the planting spacing of rice seedlings. Different varieties of rice require different growth spaces. In this way, customized planting spacing adjustments can be made according to the characteristics of the variety, effectively improving operational convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will be further described below with reference to the accompanying drawings.

[0038] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0039] Figure 2 This is a schematic diagram of the driving mechanism structure of the utility model;

[0040] Figure 3 This is a schematic diagram of the structure of the center distance adjustment mechanism of the utility model;

[0041] Figure 4 This is a schematic diagram of the U-shaped frame structure in the utility model;

[0042] Figure 5 This is a schematic diagram of the second structure of the ring frame in the utility model;

[0043] Figure 6 It is a partial structural diagram of the seedling planting mechanism of the utility model.

[0044] In the figure: 100, seedling planting mechanism; 110, traction frame; 200, driving mechanism; 210, V-shaped frame; 211, slide rail 1; 212, round hole 1; 220, motor; 221, round rod 1; 300, spacing adjustment mechanism; 310, U-shaped frame; 311, threaded rod; 312, torsion block; 313, square rod 1; 314, arc frame 1; 315, ring frame 1; 320, round rod 2 ; 321, threaded groove; 330, ring frame two; 331, round rod three; 332, spring one; 333, square; 334, square plate; 335, curved plate; 336, round hole two; 340, conical frame; 341, square rod two; 400, seedling transplanting mechanism; 410, round rod four; 411, spring two; 420, curved frame two; 421, slide rail two; 430, grabbing unit; 431, coil spring. DETAILED DESCRIPTION

[0045] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0046] See also Figures 1-6As shown, a rice seedling planting device includes a seedling planting mechanism 100, which includes a traction frame 110 and the following parts: a driving mechanism 200 is fixed to one end of the traction frame 110, which can drive multiple mechanisms at the same time, and a plurality of spacing adjustment mechanisms 300 are provided, which slide on the driving mechanism 200 and can adjust the planting spacing of rice seedlings. A seedling planting mechanism 400 is fixed on the spacing adjustment mechanism 300, which can clamp the rice seedlings and insert them vertically into the soil to drive the rice seedlings. The driving mechanism 200 includes the following parts: two V-shaped frames 210 are provided, which are respectively fixed to the outer walls on both sides of the traction frame 110, and a slide rail 211 is fixed to the outer wall between the two V-shaped frames 210. A plurality of circular holes 212 are opened at equal intervals on the outer wall of the slide rail 211. The motor 220 is fixed to the outer wall of one of the V-shaped frames 210. A round rod 221 is fixedly connected to the rotating shaft of the motor 220, and the outer wall of the round rod 221 is rotatably connected to the outer wall of the V-shaped frame 210.

[0047] The spacing adjustment mechanism 300 includes the following parts: its U-shaped frame 310 is slidably plugged into the inside of the slide rail 211, a threaded rod 311 is screwed and connected to the outer wall of the U-shaped frame 310, and a twist block 312 is fixedly connected to one end of the threaded rod 311, and the outer wall of the twist block 312 is plugged into the circular hole 212. When the horizontal spacing needs to be adjusted, the person twists the twist block 312 to rotate and separate the threaded rod 311 and the U-shaped frame 310, and the U-shaped frame 310 is released from the limit, and the U-shaped frame 310 is pushed to move to the specified position. The twist block 312 is twisted to rotate the threaded rod 311 and the U-shaped frame 310, and the twist block 312 is plugged into the circular hole 212 to limit it.

[0048] The spacing adjusting mechanism 300 comprises the following parts: the square rod one 313 is fixed to the outer wall of the U-shaped frame 310, the ring frame one 315 is fixedly connected to the outer wall of one end of the square rod one 313, the ring frame two 330 rotates on the outer wall of the ring frame one 315, a plurality of round rods three 331 are slidingly inserted into the outer wall of the ring frame two 330 at equal angles, the spring one 332 is fixedly connected between the outer wall of one end of the round rod three 331 and the inner wall of the ring frame two 330, the round rod two 320 rotates at one end of the U-shaped frame 310, the threaded groove 321 is formed on the outer wall of the round rod two 320 close to the center, the arc-shaped frame one 314 is fixed at one end of the U-shaped frame 310, the conical frame 340 is screwed on the threaded groove 321, the square rod two 341 is fixedly connected to the outer wall of the conical frame 340, the square block 333 is fixed to one end of the round rod three 331, the square plate 334 is fixedly connected to the outer wall of the square block 333, and the arc-shaped plate 335 is fixedly connected to the outer wall of the square plate 334, the round hole two 336 is formed on one of the square blocks 333, when the longitudinal spacing needs to be adjusted, the motor 220 drives the round rod one 221 to rotate, which can simultaneously drive a plurality of round rod twos 320 to rotate, so that the threaded groove 321 is screwed with the conical frame 340, the conical frame 340 slides along the slide rail two 421 to one side, the outer wall of the conical frame 340 contacts one end of the round rod three 331, which is extruded to make the round rod three 331 slide outwardly from the ring frame two 330, so that the part of the round rod three 331 outside the ring frame two 330 extends, and simultaneously drives the round rod four 410 to change position, so as to adjust the longitudinal spacing.

[0049] The seedling inserting mechanism 400 comprises the following parts: the round rod four 410 slides in the round hole two 336, the spring two 411 is fixedly connected between the outer wall of one end of the round rod four 410 and the outer wall of the corresponding square block 333, the arc-shaped frame two 420 is fixed to the outer wall of the arc-shaped frame one 314, the slide rail two 421 is fixedly connected to the outer wall of the arc-shaped frame two 420, and the slide rail two 421 slidingly inserts the square rod two 341, the grabbing unit 430 rotates on the outer wall of the round rod two 320, the coil spring 431 is fixedly connected between the outer wall of one side of the grabbing unit 430 and the outer wall of one end of the U-shaped frame 310, in the moving process, the square plate 334 and the arc-shaped plate 335 contact the soil, and the square plate 334 is inserted into the soil, which is driven to rotate by the ring frame two 330 due to the influence of the resistance, when the round rod four 410 on one of the square blocks 333 contacts one end of the corresponding arc-shaped frame two 420, one end of the round rod four 410 is extruded, which slides along the round hole two 336 to the other side, during this period, the outer wall of the sliding round hole two 336 contacts the outer wall of the grabbing unit 430, which is extruded to drive the rice seedling clamped by the grabbing unit 430 to rotate clockwise to be vertically inserted into the soil, at this time, one end of the round rod four 410 is separated from the arc-shaped frame two 420, the round rod four 410 returns to the original position due to the rebound of the spring two 411, and the grabbing unit 430 is separated from the round rod four 410, the grabbing unit 430 returns to the original position due to the rebound of the coil spring 431, and one planting is completed.

[0050] Specifically, in operation, the personnel pull the traction frame 110 to move, and in the moving process, the square plate 334 and the arc-shaped plate 335 will be in contact with the soil, and the square plate 334 will be inserted into the soil, and will drive the ring frame two 330 to rotate under the influence of resistance, when the upper end of the round rod four 410 on one of the square blocks 333 is in contact with the corresponding one end of the arc-shaped frame two 420, the upper end of the round rod four 410 is extruded, so that it slides along the round hole two 336 to the other side, and in this period, the outer wall of the round hole two 336 after sliding will be in contact with the outer wall of the grabbing unit 430, and the grabbing unit 430 will be extruded to drive the rice seedlings clamped to rotate clockwise to be vertically inserted into the soil, at this time, the upper end of the round rod four 410 will be separated from the arc-shaped frame two 420, and the round rod four 410 will return to the original position under the rebound of the spring two 411, and the grabbing unit 430 will return to the original position under the rebound of the coiled spring 431, to complete one planting, when it is needed to adjust the lateral spacing, the personnel twist the knob 312 to make the threaded rod 311 rotate with the U-shaped frame 310 and separate, the U-shaped frame 310 is released from the limitation, and pushes the U-shaped frame 310 to move to the designated position, twists the knob 312 to make the threaded rod 311 rotate with the U-shaped frame 310, and the knob 312 is inserted and matched with the round hole one 212 to limit it, when it is needed to adjust the longitudinal spacing, the motor 220 drives the round rod one 221 to rotate, which can simultaneously drive multiple round rods two 320 to rotate, so that the threaded groove 321 rotates with the tapered frame 340, drives the tapered frame 340 to slide along the slide rail two 421 to one side, the outer wall of the tapered frame 340 will contact the upper end of the round rod three 331, and the round rod three 331 will slide outwardly from the ring frame two 330 under extrusion, so that the part of the round rod three 331 outside the ring frame two 330 is extended, and simultaneously drives the round rod four 410 to change the position, to adjust the longitudinal spacing.

[0051] Embodiment one

[0052] As shown in Figure 3 , Figure 5 and Figure 6 , in the present embodiment, the seedling inserting mechanism 400 includes the following parts: the round rod four 410 slides inside the round hole two 336, the spring two 411 is fixedly connected between the outer wall of the upper end of the round rod four 410 and the outer wall of the corresponding square block 333, the arc-shaped frame two 420 is fixed with the outer wall of the arc-shaped frame one 314, the slide rail two 421 is fixedly connected with the outer wall of the arc-shaped frame two 420, and is in sliding insertion with the square rod two 341, the grabbing unit 430 rotates on the outer wall of the round rod two 320, and the coiled spring 431 is fixedly connected between the outer wall of one side of the grabbing unit 430 and the outer wall of one end of the U-shaped frame 310.

[0053] In the embodiment, the square plate 334 and the arc plate 335 are in contact with the soil during the moving process, and the square plate 334 is inserted into the soil and drives the ring frame two 330 to rotate under the influence of the resistance. When the round rod four 410 on one of the square blocks 333 is in contact with one end of the slope of the corresponding arc frame two 420, one end of the round rod four 410 is extruded, so that it slides to the other side along the round hole two 336. During this period, the outer wall of the round hole two 336 after sliding is in contact with the outer wall of the grabbing unit 430, and is extruded to drive the rice seedlings clamped by the grabbing unit 430 to rotate clockwise to be vertically inserted into the soil. At this time, one end of the round rod four 410 is separated from the arc frame two 420, and the round rod four 410 is returned to the original position under the rebound of the spring two 411, and the grabbing unit 430 is separated from the grabbing unit 430. The grabbing unit 430 is returned to the original position under the rebound of the winding spring 431, and one planting is completed. Through the seedling inserting mechanism 400, the distance between the plants is equal regardless of the speed of the personnel pulling. When the ring frame two 330 rotates one circle, one planting can be carried out, which effectively improves the uniformity and stability of the seedling inserting. In addition, the square plate 334 and the arc plate 335 are arranged to increase the resistance and prevent the ring frame two 330 from sliding on the soil. The arc plate 335 can prevent the ring frame two 330 from sinking too deep into the soil and not rotating, effectively improving the working stability.

[0054] As shown in Figure 4 In the embodiment, the spacing adjusting mechanism 300 includes the following parts: the U-shaped frame 310 is slidably inserted into the slide rail one 211, the threaded rod 311 is screwed on the outer wall of the U-shaped frame 310, the torsion block 312 is fixedly connected to one end of the threaded rod 311, and the outer wall of the torsion block 312 is inserted into the round hole one 212.

[0055] In specific implementation, when the transverse spacing needs to be adjusted, the personnel twist the torsion block 312 to make the threaded rod 311 screw with and separate from the U-shaped frame 310. The U-shaped frame 310 is removed from the limit and is pushed to move to the designated position. The torsion block 312 is twisted to make the threaded rod 311 screw with the U-shaped frame 310, and the torsion block 312 is inserted into the round hole one 212 to limit it. The operation convenience is effectively improved, and the round hole one 212 is equally spaced to facilitate the personnel to quickly position, avoid the unequal spacing, and effectively improve the stability of the adjustment.

[0056] Embodiment two

[0057] As shown in Figures 2-6As shown, in this embodiment, the spacing adjustment mechanism 300 includes the following parts: a square rod 1 313 is fixed to the outer wall of the U-shaped frame 310, a ring frame 1 315 is fixedly connected to the outer wall of one end of the square rod 1 313, a ring frame 2 330 is rotated on the outer wall of the ring frame 1 315, a plurality of round rods 331 are inserted into the outer wall of the ring frame 2 330 with equal angles, and a spring 1 332 is fixedly connected between the outer wall of one end of the round rod 331 and the inner wall of the ring frame 2 330, and the round rod 2 320 is rotated on the outer wall of the U-shaped frame 310. A threaded groove 321 is provided on the outer wall of the second round rod 320 near the center, and the arc-shaped frame 1 314 is fixed to one end of the U-shaped frame 310, and its tapered frame 340 is screwed on the threaded groove 321. A square rod 2 341 is fixedly connected to the outer wall of the tapered frame 340, and its block 333 is fixed to one end of the third round rod 331. A square plate 334 is fixedly connected to the outer wall of the block 333, and an arc-shaped plate 335 is fixedly connected to the outer wall of the square plate 334. The second round hole 336 is provided on one of the blocks 333.

[0058] During specific implementation, when the longitudinal spacing needs to be adjusted, the motor 220 drives the round rod 1 221 to rotate, and can simultaneously drive multiple round rods 2 320 to rotate, so that the thread groove 321 is screwed into the conical frame 340, driving the conical frame 340 to slide to one side along the slide rail 2 421, and the outer wall of the conical frame 340 will contact one end of the round rod 331, and the round rod 331 will be squeezed to slide outward from the ring frame 2 330, so that the round rod 3 331 outside the ring frame 2 330 is partially extended, and at the same time, the round rod 4 410 is driven to change position, so as to adjust the longitudinal spacing. The round rod 331 is extended or contracted outward by the spacing adjustment mechanism 300, so that the planting spacing of rice seedlings can be accurately adjusted. Different varieties of rice require different growth space. In this way, customized planting spacing adjustment can be made according to the characteristics of the variety, effectively improving the convenience of operation.

[0059] Throughout this specification, references to terms such as "one embodiment," "example," and "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0060] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in similar ways. As long as they do not deviate from the scope of the present invention or exceed the scope defined by the claims, they shall fall within the scope of protection of the present invention.

Claims

1. A rice seedling planting device, comprising: A seedling planting mechanism (100) includes a traction frame (110); It is characterized by further comprising: A driving mechanism (200) is fixed to one end of the traction frame (110) and is capable of driving multiple mechanisms simultaneously; A plurality of spacing adjustment mechanisms (300) are provided, which slide on the driving mechanism (200) and can adjust the planting spacing of the rice seedlings; The seedling planting mechanism (400) is fixed on the spacing adjustment mechanism (300), can clamp the rice seedlings, and vertically insert them into the soil.

2. A rice seedling planting device according to claim 1, characterized in that: The driving mechanism (200) comprises: Two V-shaped frames (210) are provided and are respectively fixed to the outer walls on both sides of the traction frame (110); A slide rail (211) is fixed on the outer wall between the two V-shaped frames (210), and a plurality of circular holes (212) are opened on the outer wall of the slide rail (211) at equal intervals; The motor (220) is fixed on the outer wall of one of the V-shaped frames (210). The rotating shaft of the motor (220) is fixedly connected to the round rod 1 (221). The outer wall of the round rod 1 (221) is rotatably connected to the outer wall of the V-shaped frame (210).

3. A rice seedling planting device according to claim 2, characterized in that: The spacing adjustment mechanism (300) comprises: The U-shaped frame (310) is slidably plugged into the interior of the slide rail (211). The outer wall of the U-shaped frame (310) is screwed and connected with a threaded rod (311). One end of the threaded rod (311) is fixedly connected with a torsion block (312). The outer wall of the torsion block (312) is plugged into the circular hole (212).

4. The rice seedling planting device according to claim 3, characterized in that: The spacing adjustment mechanism (300) comprises: A square rod (313) is fixed to the outer wall of the U-shaped frame (310), and a ring frame (315) is fixedly connected to the outer wall of one end of the square rod (313); The second ring frame (330) is rotated on the outer wall of the first ring frame (315). The outer wall of the second ring frame (330) is slidably plugged with a plurality of third round rods (331) at equal angles. A first spring (332) is fixedly connected between the outer wall of one end of the third round rod (331) and the inner wall of the second ring frame (330).

5. The rice seedling planting device according to claim 4, characterized in that: The spacing adjustment mechanism (300) comprises: The second round rod (320) is rotated on one end of the U-shaped frame (310), and a thread groove (321) is provided on the outer wall of the second round rod (320) near the center. An arc-shaped frame (314) is fixed to one end of the U-shaped frame (310); The conical frame (340) is screwed onto the thread groove (321), and the outer wall of the conical frame (340) is fixedly connected with a second square rod (341).

6. The rice seedling planting device according to claim 5, characterized in that: The spacing adjustment mechanism (300) comprises: A block (333) is fixed to one end of the round rod (331), the outer wall of the block (333) is fixedly connected to a square plate (334), and the outer wall of the square plate (334) is fixedly connected to an arc-shaped plate (335); The second circular hole (336) is provided on one of the blocks (333).

7. The rice seedling planting device according to claim 6, characterized in that: The seedling transplanting mechanism (400) comprises: The fourth round rod (410) slides inside the second round hole (336), and a second spring (411) is fixedly connected between the outer wall of one end of the fourth round rod (410) and the outer wall of the corresponding block (333); The second arc frame (420) is fixed to the outer wall of the first arc frame (314), the outer wall of the second arc frame (420) is fixedly connected with the second slide rail (421), and the second slide rail (421) is slidably plugged into the second square rod (341); The grabbing unit (430) is rotated on the outer wall of the second round rod (320), and a coil spring (431) is fixedly connected between the outer wall of one side of the grabbing unit (430) and the outer wall of one end of the U-shaped frame (310).

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