Uniform fertilizing device for seedling planting

Abstract

The utility model relates to the technical field of nursery stock planting, in particular to a uniform fertilizing device for nursery stock planting, which comprises an outer box, and a soil penetrating rod is slidably mounted in the outer box; the soil penetrating device has the advantages that the self-tapping head is arranged at the bottom end of the soil penetrating rod, when the driving motor drives the self-tapping head to rotate through the outer screw tube and the inner sliding rod, the soil penetrating rod can be driven to be easily inserted into soil, the sunken groove is formed in the outer surface of the soil penetrating rod, and granular fertilizer in the storage cavity can be brought into the soil; when the soil penetrating rod moves downwards to the limit, the self-tapping head stops rotating under the action of the clamping mechanism, the linkage mechanism and the outer screw tube start to do threaded motion and move downwards until the pushing mechanism is extruded to push the fertilizer in the concave groove to the outside of the soil penetrating rod, and then the linkage mechanism and the soil penetrating rod are fixed; the driving motor rotates reversely to lift out the part entering the soil, and the granular fertilizer can be conveyed to different depths in the soil through the operation, so that the uniform fertilization is ensured.

Description

Technical Field

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

[0002] During the planting process, seedlings need to be fertilized in the soil at their roots to promote their growth. The planting positions of seedlings are mostly arranged, and fertilizer is usually applied in the intervals between adjacent seedlings. Some fertilization devices are equipped with multiple sets of rollers and use a motion method, but the working soil is often uneven and has many bumps, and it is difficult for multiple sets of rollers to move flexibly on the soil. There are also some spraying devices that only spray pesticides on the upper surface of the soil at the roots of the seedlings, and it is difficult for pesticides to penetrate the soil and reach the roots of the seedlings.

[0003] Chinese patent document CN 211793490 U discloses a fertilizing device for planting seedlings, wherein the bearing component comprises a bearing platform, a supporting leg is arranged at the rear side of the bottom of the bearing platform, a pair of triangular beams are arranged below the bottom of the bearing platform, rollers are installed at the ends of the pair of triangular beams, convex objects are arranged on the rollers, and a push handle is installed above the bearing platform; the storage component is a material barrel, a material inlet is arranged at the top of the material barrel, and a transparent window is arranged on the material barrel; the spraying component is a fertilizing rod, the fertilizing rod is retractable, a fixed plate is installed at the end of the fertilizing rod, and a hand-held part is arranged at the upper end of the fertilizing rod; the utility model is a fertilizing device for planting seedlings, the single wheel design can reduce the friction of the device movement, the convex object increases the friction of the single wheel, and it is convenient to move on uneven soil, the fertilizing rod can be inserted into the soil, improve the absorption rate of fertilizer by the roots of the seedlings, and the fertilizing rod is retractable, which is convenient for fertilizing an area.

[0004] Although the above disclosed device can be inserted into the soil for fertilization, in actual operation, due to the large size of the above device, it is inconvenient to operate and cannot evenly fertilize the soil around the seedlings in multiple layers.

[0005] Therefore, a uniform fertilization device for seedling planting is needed to solve the above problems. Utility Model Content

[0006] In order to solve the above problem, that is, to solve the problem that the existing fertilization device cannot perform multi-layer uniform fertilization in the soil, the utility model provides a uniform fertilization device for seedling planting.

[0007] The top of the outer box is rotatably mounted with an entrapment rod, the bottom end of the outer box is extended into the inside of the entrapment rod, and an inner sliding rod is slidably mounted on the inner side of the outer box, and a clamping mechanism is arranged between the inner sliding rod and the outer screw tube, and a self-tapping head is rotatably mounted on the bottom end of the inner sliding rod, and the self-tapping head is coaxially fixedly connected with the bottom end of the inner sliding rod, and a linkage mechanism is installed on the outer side of the outer screw tube, and the linkage mechanism is connected with the entrapment rod and the pushing mechanism, and a storage chamber is arranged inside the outer box, and the storage chamber is communicated with the entrapment rod near the bottom end of the outer box. A driving motor is fixedly installed on the top of the outer box, and the output shaft of the driving motor extends into the interior of the outer box and is coaxially fixedly connected to the top of the outer screw tube; by arranging a self-tapping head at the bottom end of the burying rod, when the driving motor drives the self-tapping head to rotate through the outer screw tube and the inner sliding rod, the burying rod can be easily inserted into the soil; by providing an inner recessed groove on the outer surface of the burying rod, the granular fertilizer in the storage cavity can be brought into the soil; when the burying rod moves downward to the limit, the self-tapping head stops rotating under the action of the locking mechanism, and the linkage mechanism and the outer screw tube start to move downward by threading until the pushing mechanism is squeezed to push the fertilizer in the inner recessed groove to the outside of the burying rod, and then the linkage mechanism is fixed to the burying rod, and the driving motor is reversed to lift the component that has entered the soil. Through this operation, the granular fertilizer can be sent to different depths in the soil, thereby ensuring uniform fertilization.

[0008] The above-mentioned uniform fertilization device for planting seedlings has a downward sliding cavity coaxially opened inside the outer box near the bottom end, the bottom end of the downward sliding cavity is a transparent end, the burying rod slides in the downward sliding cavity, the side of the downward sliding cavity is opened with a lower limit slide groove, the top end of the side of the burying rod is fixedly installed with a lower limit slider, the lower limit slider slides in the lower limit slide groove, when the top end of the burying rod hits the top end of the downward sliding cavity, the bottom end of the burying rod is flush with the lower surface of the outer box; the lower limit slide groove and the lower limit slider cooperate to prevent the burying rod from rotating.

[0009] The above-mentioned uniform fertilization device for planting seedlings, the pushing mechanism includes a pushing block and a vertical hole, the pushing block is slidably installed in the inner recessed groove through a pushing spring, when the pushing spring is in a relaxed state, the outer surface of the pushing block is flush with the outer surface of the burying rod, the vertical hole is opened in the inner part of the burying rod near the middle position, the top of the vertical hole is a transparent end, the inner recessed groove is connected with the vertical hole through a rope threading hole, and the interior of the vertical hole is slidably installed with a lifting spring through an ejection spring. The lifting rod has a top end that extends above the burying rod, and the pushing block is connected to the lifting rod through a linkage rope, and the linkage rope passes through the rope threading hole. In a normal state, the top end of the lifting rod extends above the burying rod, and the pushing block is pulled to the inner end of the sunken groove through the linkage rope, so that the granular fertilizer can enter the sunken groove when the sunken groove passes through the storage cavity. When the lifting rod is pressed down, the pushing block pushes the fertilizer in the sunken groove under the action of the pushing spring.

[0010] The above-mentioned uniform fertilization device for planting seedlings has an upper sliding cavity coaxially opened near the top of the inner part of the outer box, the upper sliding cavity is connected to the lower sliding cavity, the outer spiral tube is coaxially rotatably installed in the upper sliding cavity, the inner part of the burying rod is coaxially penetrated by a through hole, the diameter of the through hole is larger than the outer diameter of the outer spiral tube, the bottom end of the outer spiral tube extends into the through hole, the bottom end of the outer spiral tube is a transparent end, and the locking mechanism includes a vertical sliding hole, and the vertical sliding hole vertically penetrates the opening of the outer spiral tube. On the pipe wall, the bottom end of the vertical sliding hole is a transparent end, the bottom end of the outer screw tube is a beveled edge, and a limit block is fixedly installed on the outer surface of the inner sliding rod near the top end, and the limit block slides in the vertical sliding hole; when the lower surface of the lower limit sliding block abuts against the bottom end of the lower limit sliding groove, the limit block moves to the bottom of the outer screw tube, and the rotating outer screw tube cannot drive the inner sliding rod to rotate, and the tapping head stops rotating, thereby stopping the burying rod from moving downward, and the bottom end of the outer screw tube is set to a beveled edge, so as to facilitate the limit block to re-enter the vertical sliding hole.

[0011] In the above-mentioned uniform fertilization device for planting seedlings, a sliding hook plate is coaxially fixedly installed on the upper surface of the self-tapping head, and the sliding hook groove is coaxially opened at the bottom end of the burying rod, and the sliding hook plate rotates in the sliding hook groove; this arrangement can not only enable the self-tapping head to drive the burying rod to slide, but also prevent the rotating self-tapping head from driving the burying rod to rotate.

[0012] The above-mentioned uniform fertilization device for planting seedlings, the linkage mechanism includes a screw ring, the screw ring is threadedly installed on the outer surface of the outer screw tube, the outer surface of the outer screw tube is a smooth section near the top, the screw ring is connected to the top of the upper sliding cavity through a tension spring, an upper limit slider is fixedly installed on the outer side of the screw ring, an upper limit slide groove is opened on the side of the upper sliding cavity, the upper limit slider slides in the upper limit slide groove, the upper limit slider is connected to the lower limit slider by a pull rope, when the lower limit slider is When the surface abuts against the bottom end of the lower limit slide groove and the lower surface of the screw ring is flush with the bottom end of the smooth section of the outer screw tube, the pull rope is in a taut state and the lifting rod is located directly below the screw ring; in a normal state, the screw ring is located on the outside of the smooth section of the outer screw tube due to the action of the tension spring, and the rotation of the outer screw tube cannot drive the screw ring to move. When the lower surface of the lower limit slider abuts against the bottom end of the lower limit slide groove, the pull rope pulls the screw ring and the threaded end of the outer screw tube to perform threaded movement, and the outer screw tube drives the screw ring to move downward until the lifting rod is pressed into the vertical hole.

[0013] The above-mentioned uniform fertilization device for planting seedlings has an inner plug hole on the upper surface of the lower limit slider, and the cross-section of the inner plug hole is a convex shape. An inner plug tube is fixedly installed on the lower surface of the upper limit slider, and the inner plug tube is located directly above the inner plug hole. The diameter of the inner plug tube is equal to the diameter of the upper half of the inner plug hole. A slide plate is slidably installed through the position near the bottom end of the tube wall of the inner plug tube, and a spring seat is fixedly installed on the inner end of the bottom of the slide plate. The spring seat and the inner surface of the inner plug tube are fixedly installed. An inner retraction spring is arranged between the surfaces, an electric telescopic rod is fixedly installed through the interior of the upper limit slider, the bottom end of the electric telescopic rod is an inclined surface and extends into the inner insert tube, and the inner end of the slide plate is an inclined surface; when the upper limit slider and the lower limit slider are against each other, the inner insert tube is inserted into the inner plug hole, and then the telescopic end of the electric telescopic rod is extended to push the slide plate out and extend it into the lower half of the inner plug hole, and then the motor is driven to reverse, so that the screw ring moves upward, and at the same time, the burying rod and the self-tapping head are driven to slide upward through the lower limit slider.

[0014] The above-mentioned uniform fertilization device for planting seedlings is provided with a first sensor at the bottom end of the side of the upper limit slide, a second sensor is provided on the side of the upper limit slider, a third sensor is provided on the upper surface of the lower limit slider, and a fourth sensor is provided on the lower surface of the upper limit slider. The first sensor, the second sensor, the third sensor and the fourth sensor are all connected to the electric telescopic rod through a controller, and the third sensor and the fourth sensor are connected to the driving motor through a controller; when the third sensor and the fourth sensor are in contact, the telescopic end of the electric telescopic rod extends and the driving motor reverses at the same time, and when the first sensor and the second sensor are in contact, the telescopic end of the electric telescopic rod retracts.

[0015] In the above-mentioned uniform fertilization device for seedling planting, the position of the storage cavity near the bottom is connected to the lower descending cavity, and a feeding hole is opened through the top of the storage cavity.

[0016] The beneficial effects of the utility model are:

[0017] The utility model provides a self-tapping head at the bottom end of the burying rod, and when the driving motor drives the self-tapping head to rotate through the outer screw tube and the inner sliding rod, the burying rod can be driven to be easily inserted into the soil, and by providing an inner recessed groove on the outer surface of the burying rod, the granular fertilizer in the storage cavity can be brought into the soil; when the burying rod moves downward to the limit, the self-tapping head stops rotating under the action of the locking mechanism, and the linkage mechanism and the outer screw tube start to move downward by threading, until the pushing mechanism is squeezed to push the fertilizer in the inner recessed groove to the outside of the burying rod, and then the linkage mechanism is fixed to the burying rod, and the driving motor is reversed to lift the component that has entered the soil. Through this operation, the granular fertilizer can be sent to different depths in the soil, thereby ensuring uniform fertilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer box of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the earth-entering rod of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the earth-entering rod of the utility model;

[0022] Figure 5 For this utility model Figure 4 The enlarged structural diagram at A in the middle;

[0023] Figure 6 This is a schematic diagram of the structure of the external spiral tube of the utility model;

[0024] Figure 7 This is a schematic diagram of the spiral ring structure of the utility model;

[0025] Figure 8 This is a schematic diagram of the inner tube structure of the utility model;

[0026] Fig. 9 It is a schematic diagram of the cross-sectional structure of the lower limit slider of the utility model.

[0027] In the figure:

[0028] 1. Outer box; 2. Soil-entering rod; 3. Inner sunken groove; 4. Outer screw tube; 5. Inner sliding rod; 6. Self-tapping head; 7. Storage cavity; 8. Driving motor; 9. Lower sliding cavity; 10. Lower limit sliding groove; 11. Lower limit sliding block; 12. Pushing block; 13. Vertical hole; 14. Pushing spring; 15. Rope hole; 16. Ejection spring; 17. Lifting rod; 18. Linkage rope; 19. Upper sliding cavity; 20. Through hole; 21. Vertical sliding hole; 2 2. Limit block; 23. Sliding hook plate; 24. Sliding hook groove; 25. Screw ring; 26. Tension spring; 27. Upper limit slider; 28. Upper limit slide groove; 29. ​​Pull rope; 30. Internal plug hole; 31. Internal plug tube; 32. Slide plate; 33. Spring seat; 34. Retractable spring; 35. Electric telescopic rod; 36. First sensor; 37. Second sensor; 38. Third sensor; 39. Fourth sensor; 40. Feeding hole. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0030] like Figure 1-Figure 3As shown, the embodiment of the utility model discloses a uniform fertilization device for planting seedlings, including an outer box 1, a soil-entering rod 2 is slidably installed inside the outer box 1, and a plurality of sunken grooves 3 are opened on the outer surface of the soil-entering rod 2, and a pushing mechanism is arranged inside the sunken groove 3, and the top of the pushing mechanism extends to the top of the soil-entering rod 2, and an outer screw tube 4 is rotatably installed on the top of the outer box 1, and the bottom end of the outer screw tube 4 extends into the soil-entering rod 2, and an inner sliding rod 5 is slidably installed inside the outer screw tube 4, and a clamping mechanism is arranged between the inner sliding rod 5 and the outer screw tube 4, and a self-tapping head 6 is rotatably installed on the bottom end of the soil-entering rod 2, and the self-tapping head 6 is coaxially fixedly connected with the bottom end of the inner sliding rod 5, and a linkage mechanism is installed on the outer side of the outer screw tube 4, and the linkage mechanism is connected with the soil-entering rod 2 and the pushing mechanism, and a storage chamber 7 is opened inside the outer box 1, and the storage chamber 7 is connected with the soil-entering rod 2 near the bottom end of the outer box 1, and the top of the outer box 1 is fixedly installed A driving motor 8 is installed, and the output shaft of the driving motor 8 extends into the interior of the outer box 1 and is coaxially fixedly connected to the top of the outer screw tube 4; by arranging a self-tapping head 6 at the bottom end of the burying rod 2, when the driving motor 8 drives the self-tapping head 6 to rotate through the outer screw tube 4 and the inner sliding rod 5, the burying rod 2 can be easily inserted into the soil, and by providing an inner recessed groove 3 on the outer surface of the burying rod 2, the granular fertilizer in the storage chamber 7 can be brought into the soil. When the burying rod 2 moves downward to the limit, the self-tapping head 6 stops rotating under the action of the locking mechanism, and the linkage mechanism and the outer screw tube 4 start to move downward by threaded motion until the pushing mechanism is squeezed to push the fertilizer in the inner recessed groove 3 to the outside of the burying rod 2, and then the linkage mechanism is fixed to the burying rod 2, and the driving motor 8 is reversed to lift the component that has entered the soil. Through this operation, the granular fertilizer can be sent to different depths in the soil, thereby ensuring uniform fertilization.

[0031] like Figure 2-Figure 3 As shown, a downward descending cavity 9 is coaxially opened near the bottom end of the inner part of the outer box 1, and the bottom end of the downward descending cavity 9 is a transparent end. The burying rod 2 slides in the downward descending cavity 9. A lower limit slide groove 10 is opened on the side of the downward descending cavity 9. A lower limit slider 11 is fixedly installed on the top end of the side of the burying rod 2. The lower limit slider 11 slides in the lower limit slide groove 10. When the top end of the burying rod 2 hits the top end of the downward descending cavity 9, the bottom end of the burying rod 2 is flush with the lower surface of the outer box 1; the lower limit slide groove 10 and the lower limit slider 11 cooperate to prevent the burying rod 2 from rotating.

[0032] like Figure 4-Figure 5As shown, the pushing mechanism includes a pushing block 12 and a vertical hole 13. The pushing block 12 is slidably installed in the inner recessed groove 3 through a pushing spring 14. When the pushing spring 14 is in a relaxed state, the outer surface of the pushing block 12 is flush with the outer surface of the burying rod 2. The vertical hole 13 is opened in the inner part of the burying rod 2 near the middle. The top of the vertical hole 13 is a transparent end. The inner recessed groove 3 is connected with the vertical hole 13 through a rope threading hole 15. A lifting rod 17 is slidably installed in the inner part of the vertical hole 13 through an ejection spring 16. The elastic force of the ejection spring 16 is greater than Due to the elastic force of the pushing spring 14, the top end of the lifting rod 17 extends above the burying rod 2, and the pushing block 12 is connected to the lifting rod 17 through the linkage rope 18, and the linkage rope 18 passes through the rope hole 15; in the normal state, the top end of the lifting rod 17 extends above the burying rod 2, and the pushing block 12 is pulled to the inner end of the sunken groove 3 through the linkage rope 18, so that the granular fertilizer can enter the sunken groove 3 when the sunken groove 3 passes through the storage chamber 7. When the lifting rod 17 is pressed down, the pushing block 12 pushes the fertilizer in the sunken groove 3 under the action of the pushing spring 14.

[0033] like Figure 2 , Figure 4 and Figure 6 As shown, an upper sliding cavity 19 is coaxially opened near the top of the outer box 1, and the upper sliding cavity 19 is connected to the lower sliding cavity 9. The outer spiral tube 4 is coaxially rotatably installed in the upper sliding cavity 19. A through hole 20 is coaxially opened inside the burying rod 2. The diameter of the through hole 20 is larger than the outer diameter of the outer spiral tube 4. The bottom end of the outer spiral tube 4 extends into the through hole 20. The bottom end of the outer spiral tube 4 is a transparent end. The positioning mechanism includes a vertical sliding hole 21. The vertical sliding hole 21 is vertically penetrated and opened on the tube wall of the outer spiral tube 4. The bottom end of the vertical sliding hole 21 is a through hole. The bottom end of the outer screw tube 4 is a bevel, and a limit block 22 is fixedly installed on the outer surface of the inner slide rod 5 near the top, and the limit block 22 slides in the vertical slide hole 21; when the lower surface of the lower limit sliding block 11 abuts against the bottom end of the lower limit sliding groove 10, the limit block 22 moves to the bottom of the outer screw tube 4, and the rotating outer screw tube 4 cannot drive the inner slide rod 5 to rotate, and the tapping head 6 stops rotating, thereby stopping the burying rod 2 from moving downward, and the bottom end of the outer screw tube 4 is set to a bevel, which is convenient for the limit block 22 to re-enter the vertical slide hole.

[0034] like Figure 4 and Figure 6 As shown, a sliding hook plate 23 is coaxially fixedly installed on the upper surface of the self-tapping head 6, and a sliding hook groove 24 is coaxially opened at the bottom end of the burying rod 2, and the sliding hook plate 23 rotates in the sliding hook groove 24; this arrangement can not only make the self-tapping head 6 drive the burying rod 2 to slide, but also prevent the rotating self-tapping head 6 from driving the burying rod 2 to rotate.

[0035] like Figure 2-Figure 3 and Figure 7As shown, the linkage mechanism includes a screw ring 25, which is threadedly mounted on the outer surface of the outer screw tube 4. The outer surface of the outer screw tube 4 is a smooth section near the top. The screw ring 25 is connected to the top of the upper slide cavity 19 through a tension spring 26. An upper limit slider 27 is fixedly mounted on the outer side of the screw ring 25. An upper limit slide groove 28 is provided on the side of the upper slide cavity 19. The upper limit slider 27 slides in the upper limit slide groove 28. The upper limit slider 27 is connected to the lower limit slider 11 through a pull rope 29. When the lower surface of the lower limit slider 11 abuts against the bottom end of the lower limit slide groove 10, When the lower surface of the screw ring 25 is flush with the bottom end of the smooth section of the outer screw tube 4, the pull rope 29 is in a taut state, and the lifting rod 17 is located directly below the screw ring 25; in a normal state, the screw ring 25 is located on the outside of the smooth section of the outer screw tube 4 due to the action of the tension spring 26, and the rotation of the outer screw tube 4 cannot drive the screw ring 25 to move. When the lower surface of the lower limit slider 11 abuts against the bottom end of the lower limit slide groove 10, the pull rope 29 pulls the screw ring 25 and the threaded end of the outer screw tube 4 to perform a threaded movement, and the outer screw tube 4 drives the screw ring 25 to move downward until the lifting rod 17 is pressed into the vertical hole 13.

[0036] like Figure 8-Figure 9 As shown, an inner plug hole 30 is provided on the upper surface of the lower limit slider 11, and the cross section of the inner plug hole 30 is a convex shape. An inner plug tube 31 is fixedly installed on the lower surface of the upper limit slider 27. The inner plug tube 31 is located directly above the inner plug hole 30, and the diameter of the inner plug tube 31 is equal to the diameter of the upper half of the inner plug hole 30. A slide plate 32 is slidably installed through the position near the bottom end of the tube wall of the inner plug tube 31, and a spring seat 33 is fixedly installed on the inner end of the bottom of the slide plate 32. An inner retraction spring 34 is arranged between the spring seat 33 and the inner surface of the inner plug tube 31. An electric telescopic rod 35 is fixedly installed inside the positioning slider 27, and the bottom end of the electric telescopic rod 35 is an inclined surface and extends into the inner insert tube 31, and the inner end of the slide plate 32 is an inclined surface; when the upper positioning slider 27 and the lower positioning slider 11 are against each other, the inner insert tube 31 is inserted into the inner plug hole 30, and then the telescopic end of the electric telescopic rod 35 is extended to push the slide plate 32 out and extend it into the lower half of the inner plug hole 30, and then the driving motor 8 is reversed to move the screw ring 25 upward, and at the same time, the burying rod 2 and the self-tapping head 6 are driven to slide upward through the lower positioning slider 11.

[0037] like Figure 2-Figure 3 and Figure 8-Figure 9As shown, a first sensor 36 is provided at the bottom end of the side of the upper limit slide 28, a second sensor 37 is provided on the side of the upper limit slider 27, a third sensor 38 is provided on the upper surface of the lower limit slider 11, and a fourth sensor 39 is provided on the lower surface of the upper limit slider 27. The first sensor 36, the second sensor 37, the third sensor 38 and the fourth sensor 39 are all connected to the electric telescopic rod 35 through a controller, and the third sensor 38 and the fourth sensor 39 are connected to the driving motor 8 through the controller; when the third sensor 38 and the fourth sensor 39 are in contact, the telescopic end of the electric telescopic rod 35 extends, and the driving motor 8 reverses at the same time, and when the first sensor 36 and the second sensor 37 are in contact, the telescopic end of the electric telescopic rod 35 retracts.

[0038] like Figure 2 As shown, the storage cavity 7 is connected to the lower descending cavity 9 near the bottom, and a feeding hole 40 is formed through the top of the storage cavity 7 .

[0039] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0041] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0042] So far, the technical solution of the utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

Claims

1. A uniform fertilization device for seedling planting, characterized in that: The invention comprises an outer box (1), wherein a soil-entering rod (2) is slidably mounted inside the outer box (1), wherein the outer surface of the soil-entering rod (2) is provided with a plurality of inwardly sunken grooves (3), wherein a material pushing mechanism is arranged inside the inwardly sunken grooves (3), wherein the top end of the material pushing mechanism extends above the soil-entering rod (2), wherein an outer screw tube (4) is rotatably mounted on the top of the outer box (1), wherein the bottom end of the outer screw tube (4) extends into the soil-entering rod (2), wherein an inner sliding rod (5) is slidably mounted inside the outer screw tube (4), wherein a locking mechanism is arranged between the inner sliding rod (5) and the outer screw tube (4), wherein the bottom end of the soil-entering rod (2 ... is rotatably mounted on the top of the outer box (1), wherein the bottom end of the outer screw tube (4) is rotatably mounted on the top of the outer box (1), wherein the bottom end of the outer screw tube (4) is rotatably mounted on the top of the outer box (1), wherein the bottom end of the outer screw tube (4) is rotatably mounted on the top of the outer box (1), wherein the bottom end of the outer screw tube (4) is rotatably mounted on the top of the outer box (1), wherein the bottom end of the outer screw tube (4) is rotatably mounted on the top of the outer box (1), wherein the bottom end of the outer screw tube (4) is A self-tapping head (6) is installed, and the self-tapping head (6) is coaxially fixedly connected to the bottom end of the inner sliding rod (5); a linkage mechanism is installed on the outer side thread of the outer screw tube (4), and the linkage mechanism is connected to the burying rod (2) and the pushing mechanism; a material storage chamber (7) is opened inside the outer box (1), and the position of the material storage chamber (7) close to the bottom end of the outer box (1) is connected to the burying rod (2); a driving motor (8) is fixedly installed at the top end of the outer box (1), and the output shaft of the driving motor (8) extends into the interior of the outer box (1) and is coaxially fixedly connected to the top end of the outer screw tube (4).

2. A uniform fertilization device for seedling planting according to claim 1, characterized in that: A downward sliding cavity (9) is coaxially provided near the bottom of the inner part of the outer box (1); the bottom end of the downward sliding cavity (9) is a transparent end; the burying rod (2) slides in the downward sliding cavity (9); a lower limit slide groove (10) is provided on the side of the downward sliding cavity (9); a lower limit slider (11) is fixedly installed at the top end of the side of the burying rod (2); the lower limit slider (11) slides in the lower limit slide groove (10); when the top end of the burying rod (2) abuts against the top end of the downward sliding cavity (9), the bottom end of the burying rod (2) is flush with the lower surface of the outer box (1).

3. A uniform fertilization device for seedling planting according to claim 2, characterized in that: The pushing mechanism comprises a pushing block (12) and a vertical hole (13); the pushing block (12) is slidably mounted inside the sunken groove (3) via a pushing spring (14); when the pushing spring (14) is in a relaxed state, the outer surface of the pushing block (12) is flush with the outer surface of the burying rod (2); the vertical hole (13) is opened at a position close to the middle of the burying rod (2); the top end of the vertical hole (13) is a transparent end; the sunken groove (3) is The rope threading hole (15) is connected to the vertical hole (13), and a lifting rod (17) is slidably installed inside the vertical hole (13) through an ejection spring (16). The elastic force of the ejection spring (16) is greater than the elastic force of the push spring (14). The top end of the lifting rod (17) extends above the burying rod (2). The pushing block (12) is connected to the lifting rod (17) through a linkage rope (18), and the linkage rope (18) is set to pass through the rope threading hole (15).

4. A uniform fertilization device for seedling planting according to claim 3, characterized in that: An upper sliding cavity (19) is coaxially provided in the interior of the outer box (1) near the top, the upper sliding cavity (19) is communicated with the lower sliding cavity (9), the outer spiral tube (4) is coaxially rotatably installed in the upper sliding cavity (19), a through hole (20) is coaxially provided in the interior of the burying rod (2), the diameter of the through hole (20) is larger than the outer diameter of the outer spiral tube (4), and the bottom end of the outer spiral tube (4) extends into the through hole (20). The bottom end of the outer spiral tube (4) is a transparent end, the locking mechanism comprises a vertical sliding hole (21), the vertical sliding hole (21) vertically penetrates and is opened on the tube wall of the outer spiral tube (4), the bottom end of the vertical sliding hole (21) is a transparent end, the bottom end of the outer spiral tube (4) is a bevel, and a limit block (22) is fixedly installed on the outer surface of the inner sliding rod (5) near the top, and the limit block (22) slides in the vertical sliding hole (21).

5. A uniform fertilization device for seedling planting according to claim 4, characterized in that: A sliding hook plate (23) is coaxially fixedly mounted on the upper surface of the self-tapping head (6), a sliding hook groove (24) is coaxially provided at the bottom end of the burying rod (2), and the sliding hook plate (23) rotates in the sliding hook groove (24).

6. A uniform fertilization device for seedling planting according to claim 5, characterized in that: The linkage mechanism comprises a screw ring (25), the screw ring (25) is threadedly mounted on the outer surface of the outer screw tube (4), the outer surface of the outer screw tube (4) near the top is a smooth section, the screw ring (25) is connected to the top of the upper slide cavity (19) through a tension spring (26), an upper limit slider (27) is fixedly mounted on the outer side of the screw ring (25), an upper limit slide groove (28) is provided on the side of the upper slide cavity (19), and the upper limit slider (27) is fixedly mounted on the outer side of the screw ring (25). 7) slides in the upper limit slide groove (28), and the upper limit slide block (27) is connected to the lower limit slide block (11) by a pull rope (29). When the lower surface of the lower limit slide block (11) abuts against the bottom end of the lower limit slide groove (10) and the lower surface of the screw ring (25) is flush with the bottom end of the smooth section of the outer screw tube (4), the pull rope (29) is in a tensioned state, and the lifting rod (17) is located directly below the screw ring (25).

7. A uniform fertilization device for seedling planting according to claim 6, characterized in that: An inner plug hole (30) is provided on the upper surface of the lower limit slider (11), and the cross section of the inner plug hole (30) is convex-shaped. An inner plug tube (31) is fixedly installed on the lower surface of the upper limit slider (27), and the inner plug tube (31) is located directly above the inner plug hole (30), and the diameter of the inner plug tube (31) is equal to the diameter of the upper half of the inner plug hole (30). The inner plug tube (31) penetrates the sliding part at a position near the bottom end of the tube wall. A slide plate (32) is installed, and a spring seat (33) is fixedly installed at the inner end of the bottom of the slide plate (32), and an inner retraction spring (34) is arranged between the spring seat (33) and the inner surface of the inner tube (31). An electric telescopic rod (35) is fixedly installed through the interior of the upper limit slider (27), and the bottom end of the electric telescopic rod (35) is an inclined surface and extends into the inner tube (31), and the inner end of the slide plate (32) is arranged with an inclined surface.

8. A uniform fertilization device for seedling planting according to claim 7, characterized in that: A first sensor (36) is arranged at the bottom end of the side of the upper limit slide groove (28), a second sensor (37) is arranged at the side of the upper limit slide block (27), a third sensor (38) is arranged on the upper surface of the lower limit slide block (11), and a fourth sensor (39) is arranged on the lower surface of the upper limit slide block (27); the first sensor (36), the second sensor (37), the third sensor (38) and the fourth sensor (39) are all connected to the electric telescopic rod (35) through a controller, and the third sensor (38) and the fourth sensor (39) are connected to the driving motor (8) through a controller.

9. A uniform fertilization device for seedling planting according to claim 8, characterized in that: The position of the material storage cavity (7) near the bottom end is connected to the lower descending cavity (9), and a feeding hole (40) is formed through the top end of the material storage cavity (7).

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