Wheat seed planting depth regulator

Abstract

This utility model relates to the field of wheat planting, specifically a wheat seed planting depth adjuster, including a support frame. A depth adjustment mechanism is provided at the bottom of the support frame, and the depth adjustment mechanism includes a pressing rod. The pressing rod is located at the bottom of the support frame, with both ends penetrating to the inner wall of the support frame. A furrow opener is fixedly connected to the bottom of the pressing rod. An electric telescopic rod is fixedly connected to the bottom of the support frame. One side of each of the two limiting plates contacts the inner wall of the pressing rod. Springs are fitted at both ends of the multi-section telescopic rod, and one side of each of the two limiting plates is fixedly connected to a limiting ball. This utility model, by setting a depth adjustment mechanism, uses the electric telescopic rod to drive the pressing rod downwards. The limiting ball retracts under pressure from the inner wall of the support frame. When a preset depth is reached, it engages with a slot for automatic locking, thus achieving rapid adjustment of the planting depth and ensuring consistent planting depth.

Description

Technical Field

[0001] This utility model relates to the field of wheat cultivation, specifically a wheat seed planting depth adjuster. Background Technology

[0002] A wheat seed planting depth regulator is a device specifically designed to precisely control the planting depth of wheat seeds in the soil. It is usually part of a seeder and is mainly achieved by adjusting the depth of the furrow opener. The main function of the furrow opener is to create small furrows in the soil suitable for seed placement. The seeds are then precisely placed in these furrows and covered with soil.

[0003] Different wheat varieties have different requirements for sowing depth. Traditional wheat sowing devices adjust the furrow opener depth by hand. The sowing device usually has multiple furrow openers, and each furrow opener needs to be adjusted one by one. It is difficult to ensure that the depth of all furrow openers is completely consistent. Every time the depth needs to be adjusted, the machine must be stopped. At the same time, the user needs to go down to the sowing device to adjust each furrow opener. This process is not only cumbersome, but also poses safety hazards. Utility Model Content

[0004] To address the shortcomings of existing technologies, different wheat varieties have different requirements for sowing depth. Traditional wheat sowing devices adjust the furrow opener depth by hand. The sowing device usually has multiple furrow openers, and each furrow opener needs to be adjusted one by one. It is difficult to ensure that the depth of all furrow openers is completely consistent. Every time the depth needs to be adjusted, the machine must be stopped. At the same time, the user needs to go down to the sowing device to adjust each furrow opener. This process is not only cumbersome, but also poses safety hazards. This utility model proposes a wheat seed planting depth adjuster.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a wheat seed planting depth adjuster, including a support, a furrow opener is provided at the bottom of the support, a sowing device is fixedly connected to one side of the support, a soil covering wheel is rotatably connected to one side of the sowing device, and a depth adjustment mechanism is provided at the bottom of the support.

[0006] The depth adjustment mechanism includes a pressing rod, which is located at the bottom of the support frame. Both ends of the pressing rod penetrate into the inner wall of the support frame. A groove opener is fixedly connected to the bottom of the pressing rod. An electric telescopic rod is fixedly connected to the bottom of the support frame. The telescopic end of the electric telescopic rod is fixedly connected to the top of the pressing rod. The pressing rod is slidably connected to the inner wall of the support frame via the electric telescopic rod. Multiple telescopic rod sections are fixedly connected to the inner walls of both ends of the pressing rod. Limiting plates are fixedly connected to the telescopic ends of both ends of the multiple telescopic rods. One side of each of the two limiting plates contacts the inner wall of the pressing rod. Springs are sleeved on both ends of the multiple telescopic rods. One end of each of the two springs is fixedly connected to one side of the limiting plate, and the other end of each of the two springs is fixedly connected to the inner wall of the pressing rod. Limiting balls are fixedly connected to one side of each of the two limiting plates. Both of the limiting balls penetrate into the inner wall of the pressing rod and extend to the outside. The inner wall of the support frame has six slots. The surface of each limiting ball contacts the inner wall of the slot.

[0007] Preferably, a support plate is fixedly connected to one side of the bracket, and there are six support plates, with a positioning shaft fixedly connected to the top of each of the six support plates.

[0008] Preferably, an L-shaped plate is rotatably connected to the surface of the positioning shaft, and the L-shaped plate is used in conjunction with the pressure rod.

[0009] Preferably, a damping bearing is fixedly connected to the inner wall of the L-shaped plate, and the inner ring of the damping bearing is fixedly connected to the surface of the positioning shaft.

[0010] Preferably, the inner wall of the support plate is provided with positioning grooves, and the number of positioning grooves is two. The inner wall of the L-shaped plate is provided with limiting grooves. The positioning grooves and limiting grooves are used in conjunction. The inner walls of the limiting grooves and positioning grooves are threaded with positioning pins.

[0011] Preferably, the top of the pressure rod is fixedly connected to a guide rod, and there are two guide rods, one end of each guide rod penetrating through the inner wall of the bracket.

[0012] The advantages of this utility model are:

[0013] This invention features a depth adjustment mechanism. An electric telescopic rod drives a downward pressure rod, which then retracts under pressure from the inner wall of the support. When the preset depth is reached, the rod automatically locks into a slot. Simultaneously, the click sound from the limit ball's impact with the slot or inner wall serves as a confirmation of the depth. Three slots with different intervals correspond to different sowing depths, enabling rapid adjustment of the sowing depth. This avoids the inconvenience and safety hazards of traditional hand-cranked adjustments that require bending over, significantly reducing labor intensity and improving work efficiency. The mechanical locking mechanism is stable and reliable, effectively resisting field vibrations and ensuring consistent sowing depth. Acoustic feedback allows the operator to intuitively judge the adjustment status, preventing misoperation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the depth adjustment mechanism of this utility model;

[0017] Figure 3 This is a partial structural diagram of the card slot of this utility model;

[0018] Figure 4 This is a partial structural diagram of the L-shaped plate of this utility model;

[0019] Figure 5 This is a partial structural schematic diagram of the damping bearing of this utility model.

[0020] In the diagram: 1. Support frame; 2. Depth adjustment mechanism; 201. Downward pressure rod; 202. Electric telescopic rod; 203. Limiting plate; 204. Spring; 205. Limiting ball; 206. Slot; 207. Multi-section telescopic rod; 3. Furrow opener; 4. Seeding device; 5. Soil covering wheel; 6. Support plate; 7. L-shaped plate; 8. Positioning shaft; 9. Damping bearing; 10. Positioning groove; 11. Limiting groove; 12. Positioning pin; 13. Guide rod. 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 scope of protection of the present utility model.

[0022] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0023] This application discloses a wheat seed planting depth adjuster. (Refer to...) Figure 1 , Figure 2 , Figure 3 and Figure 4 A wheat seed planting depth adjuster includes a support 1, a furrow opener 3 at the bottom of the support 1, a sowing device 4 fixedly connected to one side of the support 1, a soil covering wheel 5 rotatably connected to one side of the sowing device 4, and a depth adjustment mechanism 2 at the bottom of the support 1.

[0024] The depth adjustment mechanism 2 includes a pressing rod 201, which is located at the bottom of the support 1. Both ends of the pressing rod 201 extend through the inner wall of the support 1. A trencher 3 is fixedly connected to the bottom of the pressing rod 201. An electric telescopic rod 202 is fixedly connected to the bottom of the support 1. The telescopic end of the electric telescopic rod 202 is fixedly connected to the top of the pressing rod 201. The pressing rod 201 is slidably connected to the inner wall of the support 1 via the electric telescopic rod 202. Both ends of the pressing rod 201 are fixed to the inner wall. The system includes a multi-section telescopic rod 207. Each telescopic end of the multi-section telescopic rod 207 is fixedly connected to a limiting plate 203. One side of each limiting plate 203 contacts the inner wall of the pressing rod 201. Springs 204 are fitted onto both ends of the multi-section telescopic rod 207. One end of each spring 204 is fixedly connected to one side of the limiting plate 203, and the other end of each spring 204 is fixedly connected to the inner wall of the pressing rod 201. One side of each limiting plate 203 is fixedly connected to a limiting ball 20. 5. Both limiting balls 205 penetrate the inner wall of the pressing rod 201 and extend to the outer side. The inner wall of the bracket 1 has six slots 206. The surface of the limiting balls 205 contacts the inner wall of the slots 206. By setting a depth adjustment mechanism 2, the pressing rod 201 is driven to move down by the electric telescopic rod 202. The limiting balls 205 retract under the pressure of the inner wall of the bracket 1. When the preset depth is reached, they are locked into the slots 206. At the same time, the limiting balls 205 pop into the slots 206 or the inner wall and make a clicking sound as a prompt of arrival. Combined with the three slots 206 with different intervals corresponding to different sowing depths, the overall sowing depth can be quickly adjusted. This avoids the inconvenience and safety hazards caused by the bending over operation required by traditional hand-cranked adjustment, significantly reduces labor intensity, improves work efficiency, and the mechanical locking is stable and reliable. It can effectively resist field vibration and ensure consistent sowing depth. The acoustic feedback allows the operator to intuitively judge the adjustment status and prevent misoperation.

[0025] Reference Figure 4 and Figure 5 A support plate 6 is fixedly connected to one side of the bracket 1. There are six support plates 6. The top of each of the six support plates 6 is fixedly connected to a positioning shaft 8. The support plates 6 can support and fix the positioning shaft 8, providing a support point for the support pressure rod 201.

[0026] Reference Figure 5 An L-shaped plate 7 is rotatably connected to the surface of the positioning shaft 8. The L-shaped plate 7 works in conjunction with the lower pressure rod 201. The L-shaped plate 7 can support the lower pressure rod 201 after the depth is adjusted, ensuring the stability of the trencher 3 during operation.

[0027] Reference Figure 5A damping bearing 9 is fixedly connected to the inner wall of the L-shaped plate 7. The inner ring of the damping bearing 9 is fixedly connected to the surface of the positioning shaft 8. By setting the damping bearing 9, the resistance of the L-shaped plate 7 when rotating is increased, and the L-shaped plate 7 is prevented from shaking due to external vibration, thereby ensuring that the L-shaped plate 7 remains in the angular position after adjustment.

[0028] Reference Figure 5 The inner wall of the support plate 6 is provided with positioning grooves 10, and there are two positioning grooves 10. The inner wall of the L-shaped plate 7 is provided with limiting grooves 11. The positioning grooves 10 and limiting grooves 11 are used together. The inner walls of the limiting grooves 11 and positioning grooves 10 are threaded with positioning pins 12. Through the setting of positioning grooves 10, limiting grooves 11 and positioning pins 12, the position of the L-shaped plate 7 can be locked. When the L-shaped plate 7 is adjusted to the required position, the positioning pins 12 are inserted into the corresponding positioning grooves 10 and limiting grooves 11, and then fixed by the constraint of the limiting grooves 11 to prevent the L-shaped plate 7 from rotating freely.

[0029] Reference Figure 1 The top of the pressing rod 201 is fixedly connected with a guide rod 13. There are two guide rods 13, and one end of each guide rod 13 extends through the inner wall of the bracket 1. The guide rods 13 can provide guidance for the pressing electric telescopic rod 202 during the extension and retraction process, while ensuring the balance of the pressing action.

[0030] Working principle: The wheat seed planting device uses the furrow opener 3 at the front end to create small furrows suitable for seed burial on the field surface. As the machine moves forward, it carves furrows of a certain depth in the soil. The seeds are stored in the sowing device 4 and evenly distributed to the rear of each furrow opener 3 at a predetermined rate through the seed delivery tube. After the seeds fall into the furrows, the soil covering wheel 5 backfills and covers the seeds. Then, the compaction wheel gently compacts the soil. This is existing technology and will not be elaborated further. When it is necessary to adjust the planting depth of the wheat seeds, the user can activate the electric telescopic rod 202 through an external control switch. Powered by an external power source, the extension of the telescopic end of the electric telescopic rod 202 drives the downward pressure rod 201 to move downward. The downward pressure rod 201 drives the trencher 3 to move downward synchronously. As the downward pressure rod 201 moves downward, the limiting balls 205 inside both ends of the downward pressure rod 201 will disengage from the first slot 206. The inner wall of the bracket 1 will compress the limiting balls 205. The pressure will be transmitted to the multi-section telescopic rod 207 and the spring 204 through the limiting balls 205. The multi-section telescopic rod 207 and the spring 204 will compress synchronously, providing space for the compressed limiting balls 205 to retract. After being compressed, the spring 204 stores elastic potential energy. After the external force is removed... It can automatically release energy. When the pressing lever 201 moves to the required position, the corresponding slot 206 is aligned with the limiting ball 205. The uncompressed limiting ball 205 provides release space. At this time, the compressed spring 204 quickly rebounds, pushing the limiting ball 205 outward and into the slot 206. At the same time, it drives the multi-section telescopic rod 207 to return to a stable state. When the limiting ball 205 is fully in the slot 206 and contacts the inner wall of the bracket 1, a slight collision will occur, producing a clear clicking sound. This sound serves as intuitive auditory feedback, indicating to the operator that the pressing lever 201 has accurately reached the preset depth and completed the operation. Lock the L-shaped plate 7 to ensure it is properly adjusted. Then, manually rotate the L-shaped plate 7 to position it below the pressure rod 201, supporting the pressure rod 201 and keeping it in a stable state. This ensures the stability of the furrow opener 3 during operation. Next, insert the positioning pin 12 into the positioning groove 10 and the limiting groove 11 to lock the L-shaped plate 7, preventing it from rotating and improving the stability of the support. The distribution of the three slots 206 corresponds to the commonly used wheat sowing depth standards of 3 cm for shallow sowing, 5 cm for medium sowing, and 7 cm for deep sowing, ensuring that the user can quickly and accurately select the appropriate sowing depth setting.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A wheat seed planting depth adjuster, comprising a support (1), characterized in that: The bottom of the support (1) is provided with a furrow opener (3), a seeding device (4) is fixedly connected to one side of the support (1), a soil covering wheel (5) is rotatably connected to one side of the seeding device (4), and a depth adjustment mechanism (2) is provided at the bottom of the support (1). The depth adjustment mechanism (2) includes a pressing rod (201), which is located at the bottom of the support (1). Both ends of the pressing rod (201) extend through the inner wall of the support (1). A trencher (3) is fixedly connected to the bottom of the pressing rod (201). An electric telescopic rod (202) is fixedly connected to the bottom of the support (1). The telescopic end of the electric telescopic rod (202) is fixedly connected to the top of the pressing rod (201). The pressing rod (201) is slidably connected to the inner wall of the support (1) via the electric telescopic rod (202). Multiple telescopic rods (207) are fixedly connected to the inner walls at both ends of the pressing rod (201). Limit plates (203) are fixedly connected to the telescopic ends at both ends of the multiple telescopic rods (207). One side of each of the two limiting plates (203) is in contact with the inner wall of the lowering rod (201). Both ends of the multi-section telescopic rod (207) are fitted with springs (204). One end of each of the two springs (204) is fixedly connected to one side of the limiting plate (203), and the other end of each of the two springs (204) is fixedly connected to the inner wall of the lowering rod (201). One side of each of the two limiting plates (203) is fixedly connected to a limiting ball (205). Both of the limiting balls (205) penetrate into the inner wall of the lowering rod (201) and extend to the outside. The inner wall of the bracket (1) is provided with a slot (206). There are six slots (206). The surface of the limiting ball (205) is in contact with the inner wall of the slot (206).

2. The wheat seed planting depth adjuster according to claim 1, characterized in that: A support plate (6) is fixedly connected to one side of the bracket (1). There are six support plates (6), and a positioning shaft (8) is fixedly connected to the top of each of the six support plates (6).

3. The wheat seed planting depth adjuster according to claim 2, characterized in that: The surface of the positioning shaft (8) is rotatably connected to an L-shaped plate (7), which is used in conjunction with the pressure rod (201).

4. The wheat seed planting depth adjuster according to claim 3, characterized in that: The inner wall of the L-shaped plate (7) is fixedly connected to a damping bearing (9), and the inner ring of the damping bearing (9) is fixedly connected to the surface of the positioning shaft (8).

5. The wheat seed planting depth adjuster according to claim 4, characterized in that: The inner wall of the support plate (6) is provided with a positioning groove (10), and there are two positioning grooves (10). The inner wall of the L-shaped plate (7) is provided with a limiting groove (11). The positioning groove (10) and the limiting groove (11) are used together. The inner walls of the limiting groove (11) and the positioning groove (10) are threaded with a positioning pin (12).

6. The wheat seed planting depth adjuster according to claim 1, characterized in that: The top of the pressure rod (201) is fixedly connected to a guide rod (13), and there are two guide rods (13). One end of each guide rod (13) penetrates into the inner wall of the bracket (1).

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