Millet sowing line spacing adjusting device

Abstract

The utility model discloses a foxtail millet seeding row spacing adjusting device, which comprises an installation rod, a plurality of groups of seeding assemblies are arranged on the installation rod and are installed on the installation rod through an adjusting mechanism, the adjusting mechanism comprises a plurality of groups of adjusting holes, an adjusting sleeve, an inserting rod and a quick fixing mechanism, the adjusting holes are distributed on the installation rod, and the inserting rod is sleeved on the adjusting sleeve. The adjusting sleeve is connected with the multiple sets of seeding mechanisms and slides on the outer wall of the mounting rod, the inserting rod is inserted into the adjusting hole, the quick fixing mechanism comprises a fixing sleeve, clamping pieces, clamping grooves, compression springs, a push plate and a quick detaching mechanism, the fixing sleeve is arranged at the top end of the inserting rod, the multiple sets of clamping pieces are distributed on the inner wall of the fixing sleeve, and the multiple sets of clamping grooves are distributed in the outer wall of the inserting rod; a clamping structure of a fixing sleeve, a clamping piece and a clamping groove in the quick fixing mechanism is adopted, the elastic pressing design of a compression spring and a push plate is combined, and quick fixing of the adjusting position is achieved through the synergistic effect of multiple sets of components.

Description

Technical Field

[0001] This utility model relates to the field of modern agricultural production technology, and more specifically, it relates to a millet sowing row spacing adjustment device. Background Technology

[0002] In modern agricultural production, the row spacing control of millet planting has a significant impact on crop growth and yield. Under different soil conditions, climate environment and planting density requirements, it is necessary to flexibly adjust the row spacing. Especially in the process of large-scale mechanized planting, the rapid and accurate adjustment of the row spacing is crucial to improving planting efficiency and ensuring planting quality.

[0003] However, the current row spacing adjustment equipment on the market has obvious shortcomings. Traditional adjustment devices have complex structures, and the adjustment process is time-consuming and labor-intensive, requiring the use of multiple tools to complete the row spacing adjustment. At the same time, the fixing mechanism after adjustment is not reliable enough and is prone to loosening during use, affecting the sowing accuracy. In addition, when it is necessary to replace the sowing device with a different specification, the disassembly process is cumbersome, which greatly reduces the efficiency of agricultural machinery operation and increases the labor intensity of farmers. It cannot meet the needs of modern agricultural production for rapid adjustment and conversion of equipment. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a millet sowing row spacing adjustment device to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a millet sowing row spacing adjustment device, comprising an installation rod, on which a sowing assembly is provided. Multiple sets of the sowing assembly are installed on the installation rod via an adjustment mechanism. The adjustment mechanism includes an adjustment hole, an adjustment sleeve, an insertion rod, and a quick-release mechanism. Multiple sets of adjustment holes are distributed on the installation rod. The adjustment sleeve is connected to and slides on the outer wall of the installation rod. The insertion rod is inserted into the adjustment hole. The quick-release mechanism includes a fixing sleeve, a snap-fit ​​piece, a slot, a compression spring, a push plate, and a quick-release mechanism. The fixing sleeve is located at the top of the insertion rod. Multiple sets of snap-fit ​​pieces are distributed on the inner wall of the fixing sleeve. Multiple sets of slots are distributed on the outer wall of the insertion rod. Multiple sets of compression springs are connected to the inner top surface of the fixing sleeve. The push plate is installed at the bottom of the multiple sets of compression springs and abuts against the top of the insertion rod.

[0006] The present invention is further configured such that the quick-release mechanism includes an unlocking sleeve, a transmission frame, a sliding groove, a sliding sleeve, a connecting sleeve, a limiting sleeve, a push spring, a sliding rod, a limiting block, a limiting groove, and an unlocking groove. The unlocking sleeve slides inside the fixed sleeve. The transmission frame is installed on the top of the unlocking sleeve. Multiple sets of sliding grooves are provided on the outer wall of the fixed sleeve and are slidably connected to the transmission frame. The sliding sleeve is installed on the outer wall of the transmission frame. The connecting sleeve is fixed on the bottom surface of the sliding sleeve. The limiting sleeve rotates on the outer wall of the fixed sleeve. The push spring is connected to the top surface of the limiting sleeve. Multiple sets of sliding rods are provided on the bottom surface of the connecting sleeve. The limiting block is installed at the bottom end of multiple sets of sliding rods. Multiple sets of limiting grooves are provided on the limiting sleeve and are slidably connected to multiple sets of sliding rods respectively. The unlocking groove is provided at one end of multiple sets of limiting grooves.

[0007] The present invention is further configured such that a movable sleeve is connected to the bottom end of the unlocking sleeve, and a guide rod is provided inside the fixed sleeve. Multiple sets of guide rods are provided, all of which are slidably connected to the movable sleeve. The sliding cooperation between the guide rods and the movable sleeve ensures the stability and accuracy of the movement of the unlocking sleeve.

[0008] The present invention is further configured such that a thrust bearing is connected to the top end of the push spring, and the thrust bearing is rotatably connected to the connecting sleeve. The setting of the thrust bearing reduces the friction between the push spring and the connecting sleeve and improves the rotational flexibility.

[0009] The present invention is further configured such that a clearance groove is provided at the top of the insertion rod, the area of ​​which is larger than that of the transmission frame. The reasonable size design of the clearance groove provides sufficient space for the movement of the transmission frame and avoids interference.

[0010] The present invention is further configured such that the diameter of each of the multiple sets of unlocking slots is larger than that of the limiting block, and the size matching between the unlocking slot and the limiting block ensures that the limiting block can smoothly enter the unlocking slot to achieve the unlocking function.

[0011] The present invention is further configured such that a positioning block is provided on the inner side of the fixing sleeve, and multiple sets of positioning blocks are provided; a positioning groove is provided on the outer wall of the insertion rod, and multiple sets of positioning grooves are provided and are slidably connected to multiple sets of positioning blocks respectively; the precise positioning of the insertion rod and the fixing sleeve is achieved through the sliding cooperation between the positioning block and the positioning groove.

[0012] The present invention is further configured such that all of the multiple sets of limiting grooves are arc-shaped, and the arc-shaped design makes the movement of the limiting block within the limiting groove smoother, thereby improving the ease of operation.

[0013] Compared with the prior art, the present invention provides a millet sowing row spacing adjustment device, which has the following beneficial effects:

[0014] 1. By setting an adjustment mechanism on the mounting rod, the precise adjustment of the row spacing of the sowing component is achieved through the basic structure of the adjustment hole and the adjustment sleeve combined with the positioning design of the insertion rod.

[0015] 2. The quick-fix mechanism employs a locking structure of a fixed sleeve, a snap-fit ​​piece, and a snap-fit ​​groove, combined with the elastic pressing design of a compression spring and a push plate. Through the synergistic action of multiple components, the adjustment position can be quickly fixed.

[0016] 3. The quick-release mechanism provides a convenient unlocking function. Through the transmission design of the unlocking sleeve and transmission frame, combined with the flexible cooperation of the sliding groove, sliding sleeve and connecting sleeve, and the ingenious design of the limiting sleeve, push spring, sliding rod, limiting block and limiting groove and unlocking groove, the fixed state can be quickly released. The overall structure not only solves the problem of inconvenient adjustment of traditional sowing devices, but also improves the efficiency of fixing and disassembling, and significantly improves the practicality and ease of operation of the sowing row spacing adjustment system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a millet sowing row spacing adjustment device according to the present invention;

[0018] Figure 2 This is a schematic diagram of the adjustment mechanism in this utility model;

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the quick-fix mechanism in this utility model;

[0020] Figure 4 This is a schematic diagram of the quick-release mechanism in this utility model;

[0021] Figure 5 This is a cross-sectional view of the fixing sleeve in this utility model.

[0022] In the diagram: 1. Mounting rod; 2. Seeding component; 3. Adjustment hole; 4. Adjustment sleeve; 5. Insert rod; 6. Fixing sleeve; 7. Snap-fit ​​piece; 8. Snap-fit ​​groove; 9. Compression spring; 10. Push plate; 11. Unlocking sleeve; 12. Transmission frame; 13. Slide groove; 14. Slide sleeve; 15. Connecting sleeve; 16. Limiting sleeve; 17. Push spring; 18. Slide rod; 19. Limiting block; 20. Limiting groove; 21. Unlocking groove; 22. Movable sleeve; 23. Guide rod; 24. Thrust bearing; 25. Clearance groove; 26. Positioning block; 27. Positioning groove. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0026] Please see Figures 1-5 A millet sowing row spacing adjustment device includes an installation rod 1, on which a sowing component 2 is provided. The sowing component 2 is provided in multiple sets and is installed on the installation rod 1 through an adjustment mechanism. The adjustment mechanism includes an adjustment hole 3, an adjustment sleeve 4, an insertion rod 5, and a quick-release mechanism. The adjustment hole 3 is provided in multiple sets distributed on the installation rod 1. The adjustment sleeve 4 is connected to the multiple sets of sowing components and slides on the outer wall of the installation rod 1. The insertion rod 5 is inserted into the adjustment hole 3. The quick-release mechanism includes a fixing sleeve 6, a snap-fit ​​piece 7, a snap groove 8, a compression spring 9, a push plate 10, and a quick-release mechanism. The fixing sleeve 6 is provided at the top of the insertion rod 5. The snap-fit ​​piece 7 is provided in multiple sets distributed on the inner wall of the fixing sleeve 6. The snap groove 8 is provided in multiple sets distributed on the outer wall of the insertion rod 5. The compression spring 9 is provided in multiple sets connected to the inner top surface of the fixing sleeve 6. The push plate 10 is installed at the bottom of the multiple sets of compression springs 9 and abuts against the top of the insertion rod 5.

[0027] The quick-release mechanism includes an unlocking sleeve 11, a transmission frame 12, a sliding groove 13, a sliding sleeve 14, a connecting sleeve 15, a limiting sleeve 16, a push spring 17, a sliding rod 18, a limiting block 19, a limiting groove 20, and an unlocking groove 21. The unlocking sleeve 11 slides inside the fixed sleeve 6. The transmission frame 12 is installed on the top of the unlocking sleeve 11. The sliding groove 13 is provided in multiple sets distributed on the outer wall of the fixed sleeve 6 and slidably connected to the transmission frame 12. The sliding sleeve 14 is installed on the outer wall of the transmission frame 12. The connecting sleeve 15 is fixed to the bottom surface of the sliding sleeve 14. The limiting sleeve 16 rotates on the outer wall of the fixed sleeve 6. The push spring 17 is connected to the top surface of the limiting sleeve 16. The sliding rod 18 is provided in multiple sets distributed on the bottom surface of the connecting sleeve 15. The limiting block 19 is installed at the bottom end of the multiple sets of sliding rods 18. The limiting groove 20 is provided in multiple sets distributed on the limiting sleeve 16 and slidably connected to the multiple sets of sliding rods 18 respectively. The unlocking groove 21 is provided at one end of the multiple sets of limiting grooves 20.

[0028] The bottom end of the unlocking sleeve 11 is connected to a movable sleeve 22, and the fixed sleeve 6 is provided with a guide rod 23. Multiple sets of guide rods 23 are provided, and all of them are slidably connected to the movable sleeve 22. The guide rods 23 guide the movement trajectory of the movable sleeve 22 and ensure the stability of the movement of the unlocking sleeve 11.

[0029] The top of the push spring 17 is connected to a thrust bearing 24, which is rotatably connected to the connecting sleeve 15. The thrust bearing 24 bears the axial force while allowing the connecting sleeve 15 to rotate freely, thereby reducing frictional resistance.

[0030] The top of the insertion rod 5 is provided with a clearance groove 25. The area of ​​the clearance groove 25 is larger than that of the transmission frame 12. The clearance groove 25 provides sufficient space for the transmission frame 12 to move and prevent mutual interference during the movement.

[0031] The diameter of each of the multiple unlocking slots 21 is larger than that of the limiting block 19. The size difference ensures that the limiting block 19 can smoothly enter the unlocking slot 21 to achieve the unlocking function.

[0032] The inner side of the fixed sleeve 6 is provided with a positioning block 26, and multiple sets of positioning blocks 26 are provided. The outer wall of the insertion rod 5 is provided with a positioning groove 27, and multiple sets of positioning grooves 27 are provided and are slidably connected to multiple sets of positioning blocks 26 respectively. The accurate positioning and anti-rotation of the insertion rod 5 are achieved through the cooperation of the positioning blocks 26 and the positioning grooves 27.

[0033] All sets of limiting grooves 20 are set to arc shape. The arc design makes the limiting block 19 move more smoothly in the limiting groove 20 and reduces jamming.

[0034] In this embodiment, when it is necessary to adjust the sowing component 2, the adjusting sleeve 4 is slid along the mounting rod 1 to adjust the row spacing between multiple sowing components 2. The positioning is achieved through multiple adjusting holes 3. After adjustment, the insert rod 5 is inserted into the adjusting hole 3, and the fixing sleeve 6 is inserted into the insert rod 5. The positioning is achieved through multiple positioning blocks 26 and positioning grooves 27. The top of the insert rod 5 abuts against multiple push plates 10 and squeezes multiple compression springs 9. The insert rod 5 is engaged in the slot 8 through multiple snap-fit ​​pieces 7. The snap-fit ​​pieces 7 are pushed by multiple compression springs 9 to lock the insert rod 5 and snap-fit ​​pieces 7 together, thus completing the fixing of the adjusting sleeve 4.

[0035] More specifically, when it is necessary to release the fixation and adjust again, rotating the limiting sleeve 16 causes multiple sets of sliding rods 18 to move along the limiting groove 20 into the unlocking groove 21, thereby releasing the contact between multiple sets of limiting blocks 19 and the bottom surface of the limiting sleeve 16. The push spring 17 pushes the connecting sleeve 15 and the sliding sleeve 14, and the sliding sleeve 14 pulls the unlocking sleeve 11 through the transmission frame 12 to push multiple sets of snap-fit ​​pieces 7 to disengage from the snap-fit ​​groove 8, thereby releasing the snap-fit ​​on the insertion rod 5. The multiple sets of compression springs 9 reset and drive the abutment plate to push the insertion rod 5 to separate from the fixing sleeve 6, so that it disengages from the adjustment hole 3, thus completing the unlocking of the adjustment sleeve 4.

[0036] In summary, when the overall equipment is in use or operation: when it is necessary to adjust the seeding component 2, the adjusting sleeve 4 is slid along the mounting rod 1 to adjust the row spacing between multiple seeding components 2, and the positioning is achieved through multiple adjusting holes 3. After adjustment, the insert rod 5 is inserted into the adjusting hole 3, and the fixing sleeve 6 is inserted into the insert rod 5. The positioning blocks 26 are positioned and inserted into the positioning grooves 27. The top of the insert rod 5 abuts against multiple push plates 10 and squeezes multiple compression springs 9. It is engaged in the slots 8 through multiple snap-fit ​​pieces 7. The multiple compression springs 9 push the insert rod 5 and snap-fit ​​pieces 7 to lock together, thus completing the fixing of the adjusting sleeve 4.

[0037] When it is necessary to release the fixation and adjust again, rotate the limiting sleeve 16 to move multiple sets of sliding rods 18 along the limiting groove 20 into the unlocking groove 21, thereby releasing the contact between multiple sets of limiting blocks 19 and the bottom surface of the limiting sleeve 16. The push spring 17 pushes the connecting sleeve 15 and the sliding sleeve 14. The sliding sleeve 14 pulls the unlocking sleeve 11 through the transmission frame 12 to push multiple sets of snap-fit ​​pieces 7 to disengage from the snap-fit ​​groove 8, thereby releasing the snap-fit ​​on the insertion rod 5. The multiple sets of compression springs 9 reset and drive the abutment plate to push the insertion rod 5 to separate from the fixing sleeve 6, so that it disengages from the adjustment hole 3, thus completing the unlocking of the adjustment sleeve 4.

[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A millet seeding row spacing adjusting device comprising a mounting rod (1), characterized in that: The mounting rod (1) is provided with a sowing component (2). The sowing component (2) is provided in multiple sets and is installed on the mounting rod (1) through an adjustment mechanism. The adjustment mechanism includes an adjustment hole (3), an adjustment sleeve (4), an insertion rod (5), and a quick-release mechanism. The adjustment hole (3) is provided in multiple sets distributed on the mounting rod (1). The adjustment sleeve (4) is connected to multiple sets of sowing components and slides on the outer wall of the mounting rod (1). The insertion rod (5) is inserted into the adjustment hole (3). The quick-release mechanism includes a fixing sleeve (6), a snap-fit ​​piece (7), a slot (8), a compression spring (9), a push plate (10), and a quick-release mechanism. The fixing sleeve (6) is provided at the top of the insertion rod (5). The snap-fit ​​piece (7) is provided in multiple sets distributed on the inner wall of the fixing sleeve (6). The slot (8) is provided in multiple sets distributed on the outer wall of the insertion rod (5). The compression spring (9) is provided in multiple sets connected to the inner top surface of the fixing sleeve (6). The push plate (10) is installed at the bottom of multiple sets of compression springs (9) and abuts against the top of the insertion rod (5).

2. The millet seeding row spacing adjusting device according to claim 1, characterized in that: The quick-release mechanism includes an unlocking sleeve (11), a transmission frame (12), a sliding groove (13), a sliding sleeve (14), a connecting sleeve (15), a limiting sleeve (16), a push spring (17), a sliding rod (18), a limiting block (19), a limiting groove (20), and an unlocking groove (21). The unlocking sleeve (11) slides inside the fixed sleeve (6), the transmission frame (12) is installed on the top of the unlocking sleeve (11), the sliding groove (13) has multiple sets distributed on the outer wall of the fixed sleeve (6) and slidably connected to the transmission frame (12), and the sliding sleeve (14) is installed on the inner side of the fixed sleeve (6). On the outer wall of the transmission frame (12), the connecting sleeve (15) is fixed to the bottom surface of the sliding sleeve (14), the limiting sleeve (16) rotates on the outer wall of the fixed sleeve (6), the push spring (17) is connected to the top surface of the limiting sleeve (16), the sliding rod (18) is provided in multiple sets distributed on the bottom surface of the connecting sleeve (15), the limiting block (19) is installed at the bottom end of the multiple sets of sliding rods (18), the limiting groove (20) is provided in multiple sets distributed on the limiting sleeve (16) and is slidably connected to the multiple sets of sliding rods (18) respectively, and the unlocking groove (21) is provided at one end of the multiple sets of limiting grooves (20).

3. The millet seeding row spacing adjusting device according to claim 2, characterized in that: The bottom end of the unlocking sleeve (11) is connected to a movable sleeve (22), and the fixed sleeve (6) is provided with a guide rod (23). The guide rod (23) is provided in multiple sets and is slidably connected to the movable sleeve (22).

4. The millet seeding row spacing adjusting device according to claim 3, characterized in that: The top end of the push spring (17) is connected to a thrust bearing (24), and the thrust bearing (24) is rotatably connected to the connecting sleeve (15).

5. The millet seeding row spacing adjusting device according to claim 4, characterized in that: The top of the insertion rod (5) is provided with a relief groove (25), and the area of ​​the relief groove (25) is larger than that of the transmission frame (12).

6. The millet seeding row spacing adjusting device according to claim 5, characterized in that the plurality of groups The diameter of each unlocking slot (21) is larger than that of the limiting block (19).

7. The millet seeding row spacing adjusting device according to claim 6, characterized in that: The inner side of the fixed sleeve (6) is provided with a positioning block (26), and multiple sets of the positioning block (26) are provided. The outer wall of the insertion rod (5) is provided with a positioning groove (27), and multiple sets of the positioning groove (27) are provided and are slidably connected to multiple sets of positioning blocks (26).

8. The millet seeding row spacing adjusting device according to claim 7, characterized in that: All of the aforementioned limiting grooves (20) are set to be arc-shaped.

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