Rice seeding device with adjustable seeding depth
By designing an adjustable rice sowing device, the sliding connection between the elongated frame and the slide rail block enables synchronous adjustment and quick replacement of the sliding blade position, solving the problem of cumbersome operation in existing technologies and improving the efficiency of sowing depth adjustment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN XINTIAN AGRI TECH CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-19
AI Technical Summary
The existing rice sowing device is cumbersome to operate when adjusting the sowing depth, requiring adjustment of multiple sliding blades one by one, resulting in low efficiency.
An adjustable rice sowing device was designed. Through the sliding connection of the elongated frame and the slide rail block, the synchronous position adjustment of multiple slide blades can be realized. The slide blades can be quickly replaced through the cooperation of the locking rod and the elastic element.
It enables rapid, synchronous adjustment and quick replacement of the sliding blade position, improving the efficiency and ease of operation of seeding depth adjustment.
Smart Images

Figure CN224368362U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice sowing technology, specifically to a rice sowing device with adjustable sowing depth. Background Technology
[0002] In the process of rice cultivation, the sowing depth is crucial to the growth of rice.
[0003] In the prior art, a rice seedling sowing device with authorization announcement number CN215683271U includes two walking wheels. A rotating rod is fixedly connected between the two walking wheels. A sowing wheel is fixedly connected to the outer surface of the rotating rod. A sowing groove is formed on the outer surface of the sowing wheel. A hopper is provided on the outer surface of the sowing wheel. The inner wall of the hopper matches the sowing wheel. A discharge port is provided at the bottom of the hopper.
[0004] In existing technologies, multiple adjustable sliding blades are usually set up to create furrows of different depths in the field for seed sowing. However, this structure has obvious drawbacks: since most of the sliding blades are fixed by bolts, when the sowing depth needs to be adjusted, personnel need to adjust multiple sliding blades one by one, which is quite cumbersome. Utility Model Content
[0005] The purpose of this invention is to provide a rice sowing device with adjustable sowing depth to solve the problems raised in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable rice sowing device, comprising a rotating rod, with wheels mounted on both sides of the rotating rod, three hopper bodies rotatably connected to the outer sides of the wheels, a rail seat fixedly connected to the front side of each hopper body, multiple slots on the outer side of the rail seat, a sliding rail block slidably disposed inside the rail seat, a fixing groove on the outer side of the sliding rail block, a long frame fixedly connected between the multiple sliding rail blocks, an I-shaped rod disposed inside the long frame, both ends of the I-shaped rod passing through the inner side of the long frame and slidably connected to the long frame, an elastic element disposed on the outer side of one end of the I-shaped rod, multiple locking rods mounted on the rear side of the I-shaped rod, the locking rods passing through one of the slots and extending into the fixing groove, and a grooving structure disposed at the bottom of the long frame.
[0007] Preferably, each of the three hopper bodies is provided with a seeding wheel, and the three seeding wheels are fixedly connected to the outside of the rotating rod. A rolling wheel is installed on one side of the bottom of each hopper body, and a handle is installed between the three hopper bodies.
[0008] Preferably, the elastic element includes a spring, which is sleeved on the outer side of one end of the I-shaped rod, and the two ends of the spring are fixedly connected to the elongated frame and the I-shaped rod, respectively.
[0009] Preferably, the elongated frame has a round rod on the front side, one end of which extends into the interior of the elongated frame and is fixedly connected to the I-shaped rod. By pulling or pushing the round rod, the movement of the I-shaped rod can be easily controlled.
[0010] Preferably, the trenching structure includes an opening frame, which is fixedly connected to the bottom of an elongated frame and to multiple slide rail blocks. Three limiting cylinders are fixedly connected to the top of the opening frame's interior. The bottom of each limiting cylinder passes through the bottom of the opening frame's interior and is fixedly connected to it. A sliding cutter is slidably disposed inside each limiting cylinder, and a slot is provided on one side of each cutting cutter. The limiting cylinders improve the stability of the cutting cutter during operation. The connection between the opening frame, the elongated frame, and the multiple slide rail blocks forms a stable support structure, ensuring the stability of the trenching process.
[0011] Preferably, the trenching structure further includes three T-shaped plates, which are respectively disposed on one side of the three limiting cylinders. One end of each T-shaped plate passes through the outside of the limiting cylinder and extends into the slot. The T-shaped plate is slidably connected to the limiting cylinder. Two springs are provided between the T-shaped plate and the limiting cylinder, and the two ends of each spring are fixedly connected to the limiting cylinder and the T-shaped plate, respectively.
[0012] Preferably, the top and bottom of the open frame are provided with three sliding grooves, and the multiple sliding grooves are in pairs, with the three T-shaped plates slidably disposed inside the three sets of sliding grooves respectively.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This application uses a raised or lowered round rod to allow the elongated frame to slide the slide block inside the rail base. The elongated frame can be used to adjust the position of the three slide cutters up and down. After the position is adjusted, the round rod is released, and the spring returns to its elastic state, allowing the multiple locking rods on the I-shaped rod to engage with the corresponding fixed slots through the corresponding slots, thereby limiting the position of the multiple slide blocks. This structural design allows for the synchronous adjustment of the position of the three slide cutters without the need for personnel to operate them one by one.
[0015] 2. This application allows for quick disassembly of the slide knife by pulling the T-shaped plate away from the limiting cylinder. At this time, the two springs are elastically stretched, and the T-shaped plate is moved out of the slot. Then, the slide knife can be pulled out from the limiting cylinder to complete the quick disassembly of the slide knife for replacement. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the rice sowing device with adjustable sowing depth according to this utility model;
[0017] Figure 2This is a cross-sectional view of the hopper body of the adjustable-depth rice sowing device of this utility model;
[0018] Figure 3 This is a schematic diagram showing the disassembled structure of the track base, slide block, and elongated frame of the adjustable sowing depth rice sowing device of this utility model.
[0019] Figure 4 This is a schematic diagram of the disassembled structure of the sliding blade and the limiting cylinder of the rice sowing device with adjustable sowing depth according to this utility model.
[0020] The following are the labels in the diagram: 1. Rotating rod; 2. Traveling wheel; 3. Hopper body; 4. Seeding wheel body; 5. Rolling wheel; 6. Handle; 7. Rail base; 700. Groove; 8. Slide rail block; 800. Fixing groove; 9. Opening frame; 10. Long frame; 11. I-shaped rod; 12. Spring one; 13. Clamping rod; 14. Round rod; 15. Limiting cylinder; 16. Sliding knife; 160. Clamping groove; 17. T-shaped plate; 18. Slide groove; 19. Spring two. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example: Figure 1 - Figure 4As shown, this utility model provides a technical solution for an adjustable sowing depth rice sowing device, including a rotating rod 1, with traveling wheels 2 installed on both sides of the rotating rod 1. Three hopper bodies 3 are rotatably connected to the outside of the traveling wheels 2. Each of the three hopper bodies 3 has a sowing wheel 4 inside, and the three sowing wheels 4 are fixedly connected to the outside of the rotating rod 1. A rolling wheel 5 is installed on one side of the bottom of the hopper body 3. A handle 6 is installed between the three hopper bodies 3. A rail seat 7 is fixedly connected to the front of the hopper body 3. Multiple slots 700 are opened on the outside of the rail seat 7. A slide block 8 is slidably arranged inside the rail seat 7. A fixing groove 800 is opened on the outside of the slide block 8. Long rail blocks 8 are fixedly connected between the multiple slide blocks 8. The long frame 10 has an I-shaped rod 11 inside. Both ends of the I-shaped rod 11 pass through the inner side of the long frame 10 and are slidably connected to the long frame 10. An elastic element is provided on the outer side of one end of the I-shaped rod 11. The elastic element includes a spring 12, which is sleeved on the outer side of one end of the I-shaped rod 11. Both ends of the spring 12 are fixedly connected to the long frame 10 and the I-shaped rod 11, respectively. Multiple locking rods 13 are installed on the rear side of the I-shaped rod 11. The locking rods 13 pass through one of the slots 700 and extend into the fixed slot 800. A round rod 14 is provided on the front side of the long frame 10. One end of the round rod 14 extends into the long frame 10 and is fixedly connected to the I-shaped rod 11. The bottom of the long frame 10 has a grooved structure.
[0023] The trenching structure includes an opening frame 9, which is fixedly connected to the bottom of a long frame 10. The opening frame 9 is also fixedly connected to multiple slide rail blocks 8. Three limiting cylinders 15 are fixedly connected to the top of the opening frame 9. The bottom of each limiting cylinder 15 passes through the bottom of the opening frame 9 and is fixedly connected to it. A sliding cutter 16 is slidably disposed inside each limiting cylinder 15, and a slot 160 is provided on one side of each sliding cutter 16. The trenching structure also includes three T-shaped plates 17, which are respectively disposed at the three limiting blocks. On one side of the cylinder 15, one end of the T-shaped plate 17 passes through the outside of the limiting cylinder 15 and extends into the slot 160. The T-shaped plate 17 is slidably connected to the limiting cylinder 15. Two springs 19 are provided between the T-shaped plate 17 and the limiting cylinder 15. The two ends of the two springs 19 are fixedly connected to the limiting cylinder 15 and the T-shaped plate 17 respectively. Three sliding grooves 18 are provided at the top and bottom of the inside of the open frame 9. The multiple sliding grooves 18 are in pairs. The three T-shaped plates 17 are slidably arranged in the three sets of sliding grooves 18 respectively.
[0024] Specifically, the round rod 14 pulls the I-shaped rod 11 to slide on the elongated frame 10. The spring 12 on the outside of the I-shaped rod 11 is elastically compressed, and the I-shaped rod 11 drives multiple locking rods 13 to move. The multiple locking rods 13 move out of the multiple fixed slots 800 until they move to the outside of the three rail seats 7. Then the round rod 14 is raised or lowered, and the elongated frame 10 drives the slide rail block 8 to slide inside the rail seat 7. The position of the three slide cutters 16 can be adjusted up and down through the elongated frame 10. After the position is adjusted, the round rod 14 is released, and the spring 12 elastically returns to its original position, so that the multiple locking rods 13 on the I-shaped rod 11 are respectively locked into the corresponding fixed slots 800 through the corresponding slots 700, thereby limiting the position of the multiple slide rail blocks 8. This structural design can meet the requirement of synchronous adjustment of the position of the three slide cutters 16 without the need for personnel to operate them one by one.
[0025] In addition, when it is necessary to replace the slide cutter 16, pull the T-shaped plate 17. The T-shaped plate 17 moves away from the limiting cylinder 15. At this time, the two springs 19 are stretched elastically, and the T-shaped plate 17 is removed from the slot 160. Then, the slide cutter 16 can be pulled out from the limiting cylinder 15 to complete the quick release of the slide cutter 16 for replacement.
[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A rice seeding device capable of adjusting seeding depth, characterized in that: The system includes a rotating rod (1), on both sides of which are mounted traveling wheels (2). Three hopper bodies (3) are rotatably connected to the outer sides of the traveling wheels (2). A rail seat (7) is fixedly connected to the front side of each hopper body (3). Multiple slots (700) are provided on the outer side of the rail seat (7). Slide blocks (8) are slidably arranged inside the rail seat (7). Fixed slots (800) are provided on the outer side of each slide block (8). Long rails are fixedly connected between the multiple slide blocks (8). The long frame (10) has an I-shaped rod (11) inside. Both ends of the I-shaped rod (11) pass through the inside of the long frame (10) and are slidably connected to the long frame (10). An elastic element is provided on the outer side of one end of the I-shaped rod (11). Multiple locking rods (13) are installed on the rear side of the I-shaped rod (11). The locking rods (13) pass through one of the slots (700) and extend into the fixed slot (800). The bottom of the long frame (10) has a groove structure.
2. The adjustable depth rice planter of claim 1, wherein: Each of the three hopper bodies (3) is equipped with a seeding wheel (4), and the three seeding wheels (4) are fixedly connected to the outside of the rotating rod (1). A rolling wheel (5) is installed on one side of the bottom of each hopper body (3), and a handle (6) is installed between the three hopper bodies (3).
3. The adjustable depth rice planter of claim 1, wherein: The elastic element includes a spring (12), which is sleeved on the outside of one end of the I-shaped rod (11). The two ends of the spring (12) are fixedly connected to the elongated frame (10) and the I-shaped rod (11), respectively.
4. The adjustable depth rice planter of claim 1, wherein: The elongated frame (10) has a round rod (14) on its front side, one end of which extends into the interior of the elongated frame (10) and is fixedly connected to the I-shaped rod (11).
5. The adjustable depth rice planter of claim 1, wherein: The trenching structure includes an opening frame (9), which is fixedly connected to the bottom of the elongated frame (10). The opening frame (9) is fixedly connected to multiple slide rail blocks (8). Three limiting cylinders (15) are fixedly connected to the top inside the opening frame (9). The bottom end of the limiting cylinder (15) passes through the bottom inside the opening frame (9) and is fixedly connected to the opening frame (9). A sliding knife (16) is slidably arranged inside the limiting cylinder (15). A slot (160) is opened on one side of the sliding knife (16).
6. The rice seeding device with adjustable seeding depth according to claim 5, characterized in that: The trenching structure also includes three T-shaped plates (17), which are respectively disposed on one side of the three limiting cylinders (15). One end of the T-shaped plate (17) passes through the outside of the limiting cylinder (15) and extends into the slot (160). The T-shaped plate (17) is slidably connected to the limiting cylinder (15). Two springs (19) are provided between the T-shaped plate (17) and the limiting cylinder (15). The two ends of the two springs (19) are fixedly connected to the limiting cylinder (15) and the T-shaped plate (17) respectively.
7. The rice seeding device with adjustable seeding depth according to claim 6, characterized in that: The top and bottom of the open frame (9) are provided with three sliding grooves (18). The multiple sliding grooves (18) are in pairs, and the three T-shaped plates (17) are slidably disposed in the three sets of sliding grooves (18).