A multi-element fertilizer spreading machine suitable for cantaloupe planting

Abstract

The application discloses a multi-element fertilizer scattering machine suitable for planting Hami melon, which comprises a walking vehicle body, a chain plate type fertilizer scattering mechanism, a groove wheel type fertilizer scattering mechanism, a disc type fertilizer scattering mechanism and a fertilizer guiding mechanism; the groove wheel type fertilizer scattering mechanism comprises a plurality of groove wheel type fertilizer scattering units; the disc type fertilizer scattering mechanism comprises a rotating disc and a fertilizer blocking unit; the fertilizer guiding mechanism comprises a first sliding shaft and a plurality of fertilizer guiding plates, each groove wheel type fertilizer scattering mechanism is arranged in each gap through a hose; the upper ends of all the fertilizer guiding plates are rotatably arranged on the frame of the walking vehicle body; the lower ends of all the fertilizer guiding plates are connected with the first sliding shaft, and the first sliding shaft is provided with the first spring arranged between every two fertilizer guiding plates; the fertilizer guiding mechanism further comprises a fan-shaped guiding part connected with the fertilizer blocking unit, and the fan-shaped guiding part is provided with a separating rib; and the fertilizer guiding mechanism further comprises an adjusting mechanism acting on the two outermost fertilizer guiding plates. In the application, various fertilizers can be uniformly guided into the working range, and the width range can be adjusted.

Description

Technical Field

[0001] This invention relates to the field of fertilizer applicator technology, and in particular to a multi-element fertilizer applicator suitable for cantaloupe cultivation. Background Technology

[0002] In agricultural production, Hami melon cultivation requires high soil fertility, typically necessitating the simultaneous application of organic fertilizer, granular fertilizer, and powdered fertilizer to meet its nutrient needs throughout its growth cycle. Traditional fertilization methods often involve manual spreading or single-function mechanical fertilizer application equipment applied in multiple stages. This approach is not only labor-intensive and inefficient but also prone to uneven fertilizer distribution and inaccurate application locations, impacting crop absorption and final yield. To improve the mechanization and intelligence of fertilization, multi-functional compound fertilizer application machines have emerged in recent years, aiming to achieve simultaneous application of multiple fertilizers in a single operation. However, existing multi-fertilizer spreading equipment generally suffers from technical bottlenecks such as difficulty in adjusting the spreading width and poor uniformity in spreading different fertilizer forms.

[0003] For example, Chinese invention patent application CN113424356A discloses a compound fertilizer applicator for cucurbit crops. It uses a layered fertilizer tank structure to hold granular fertilizer and powdered fertilizer respectively, and employs a double-disc fertilizer discharge device for backward spreading. While this device achieves simultaneous application of both fertilizers, it exhibits significant drawbacks in practical application: its fertilizer discharge mechanism is a fixed structure, unable to flexibly adjust the spreading width according to the planting row spacing, resulting in poor adaptability to different planting patterns. In particular, in the disc fertilizer discharge structure, the disc, in conjunction with a fixed baffle, controls the fertilizer discharge direction. When the disc rotates, centrifugal force causes the fertilizer to concentrate on one side of the fixed baffle, resulting in very poor fertilizer uniformity. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a multi-fertilizer spreader suitable for cantaloupe cultivation that can adjust the spreading width and always ensure the uniformity of spreading of various fertilizers.

[0005] Technical solution: To achieve the above objectives, the present invention provides a multi-fertilizer spreader suitable for cantaloupe cultivation, which includes a traveling vehicle body. The traveling vehicle body has a chain plate type fertilizer application mechanism, a grooved wheel type fertilizer application mechanism, and a disc fertilizer discharge mechanism arranged sequentially from front to back, which are used for the discharge of organic fertilizer, granular fertilizer, and powdered fertilizer, respectively.

[0006] The chain plate type fertilization mechanism includes a first fertilizer box and a chain plate mechanism located below it; the grooved wheel type fertilization mechanism includes a second fertilizer box and a plurality of equidistant grooved wheel fertilizer dispensing units located below the second fertilizer box; the disc fertilizer dispensing mechanism includes a third fertilizer box and a turntable located in the middle of the lower part of the third fertilizer box, and also includes a fertilizer blocking unit with an arc-shaped guard edge.

[0007] The traveling vehicle body is also equipped with a fertilizer guiding mechanism located below the grooved wheel fertilizer applicator and between the chain plate fertilizer applicator and the disc fertilizer discharge mechanism.

[0008] The fertilizer guiding mechanism includes a first sliding shaft and multiple fertilizer guiding plates. The number of gaps formed between all the fertilizer guiding plates is the same as the number of grooved wheel fertilizer applicators, and each grooved wheel fertilizer applicator extends into each gap through a flexible hose.

[0009] The upper ends of all the fertilizer guide plates are rotatably mounted relative to the frame of the vehicle body, with the pivot axis facing forward and backward; the lower ends of all the fertilizer guide plates are connected to the first sliding shaft and can change position along the axial direction of the first sliding shaft, and a first spring is sleeved on the first sliding shaft between every two fertilizer guide plates.

[0010] The fertilizer guiding mechanism also includes a fan-shaped guide member connected to the fertilizer blocking unit. The fan-shaped guide member has partition ribs to divide the interior of the fan-shaped guide member into the same number of channels as the grooved wheel fertilizer applicator.

[0011] The fertilizer guiding mechanism also includes an adjustment mechanism that acts on the two outermost fertilizer guiding plates.

[0012] During operation, the chain plate fertilizer applicator discharges fertilizer backward, the grooved wheel fertilizer applicator discharges fertilizer downward, and the disc fertilizer applicator discharges fertilizer forward. In this way, organic fertilizer, granular fertilizer, and powdered fertilizer can be evenly guided by the same fertilizer guiding mechanism and fall into the soil.

[0013] Furthermore, the adjustment mechanism includes a drive rod centrally mounted in the left-right direction, the middle part of the drive rod is hinged to the frame, and the two ends of the drive rod are respectively connected to the two outermost fertilizer guide plates via connecting rods;

[0014] The adjustment mechanism further includes a connecting frame rotatably connected to one end of the drive rod, a screw rotatably mounted on the connecting frame, and a handle mounted on the end of the screw; a threaded sleeve that cooperates with the screw is rotatably mounted on the frame.

[0015] Furthermore, the lower end of each of the fertilizer guide plates is connected to the first sliding shaft via a transition plate; the transition plate is rotatably mounted relative to the fertilizer guide plate, and the fertilizer guide plate has a first through hole for the first sliding shaft to pass through; the first through holes on the transition plates corresponding to the fertilizer guide plates on both sides are circular; the first through holes on the transition plates corresponding to the other fertilizer guide plates are elongated.

[0016] Furthermore, the fertilizer guiding mechanism also includes a second sliding shaft, and all the adapter plates also have a second through hole for the second sliding shaft to pass through; a connecting hoop that can slide relative to the second sliding shaft is sleeved on the second sliding shaft, and the lower end of the hose is connected to the connecting hoop; a second spring located on both sides of each connecting hoop is also sleeved on the second sliding shaft, and the second spring abuts against the connecting hoop and the adapter plate respectively.

[0017] Furthermore, the bottom of the third fertilizer box has a long strip-shaped fertilizer trough, and the disc fertilizer discharge mechanism also includes a conveying auger installed in the fertilizer trough. The two ends of the conveying auger have two sets of conveying blades, and the two sets of conveying blades rotate in opposite directions. A cover fixed relative to the third fertilizer box is installed above the middle of the conveying auger, and the middle of the fertilizer trough has a fertilizer drop outlet located below the cover.

[0018] Using the above-described mechanism, when the conveying auger rotates, it can transport the fertilizer in the fertilizer tank towards the center, allowing the fertilizer to enter the lower part of the cover and be discharged from the fertilizer outlet. The cover can prevent the fertilizer in the third fertilizer tank from directly entering the fertilizer outlet.

[0019] Furthermore, both sides of the top of the cover have slopes to prevent fertilizer from accumulating on the top of the cover.

[0020] Furthermore, the disc-shaped fertilizer discharge mechanism also includes a rotating cover, which has an annular baffle surrounding the turntable, and two fertilizer outlets arranged symmetrically on the annular baffle. The rotating cover can rotate actively, and the rotational speed of the rotating cover is slower than that of the turntable. The upper surface of the turntable has multiple vertical ribs that extend radially along the turntable, so that when the turntable rotates, it can throw the fertilizer radially.

[0021] Furthermore, the turntable and the rotating cover are driven by the same drive motor. The rotating cover and the turntable have coaxially connected drive parts. The drive part of the turntable is directly connected to the drive motor, and the output shaft of the drive motor is connected to the drive part of the turntable through a gear set. Specifically, the gear set is a transition shaft parallel to the drive part of the rotating cover. The output shaft of the drive motor outputs power to the transition shaft through a first gear set, and the transition shaft outputs power to the drive part of the rotating cover through a second gear set. Both the first gear set and the second gear set are reduction gear sets.

[0022] During operation, the fertilizer thrown out by the turntable is discharged from the fertilizer outlet of the rotating hood. Due to the presence of the arc-shaped baffle of the fertilizer blocking unit, one of the two fertilizer outlets of the rotating hood is always blocked by the arc-shaped baffle, while the other fertilizer outlet discharges fertilizer as it rotates. After the discharging fertilizer outlet has rotated through an arc segment, it is blocked by the arc-shaped baffle. At the same time, the fertilizer outlet that was originally blocked leaves the arc-shaped baffle to carry out fertilizer discharge operation, thus achieving continuous and uniform fertilizer discharge operation.

[0023] Beneficial effects: The multi-element fertilizer spreader of the present invention, suitable for cantaloupe cultivation, has the following beneficial effects:

[0024] (1) In this invention, by adding a reasonably designed fertilizer guiding mechanism, organic fertilizer, granular fertilizer and powdered fertilizer can be uniformly guided to the width range of the fertilization operation, and the width range of the fertilization operation can be adjusted as needed. By setting the first sliding shaft and the first spring, the consistency of the width of the lower end of each gap can be ensured, and the uniformity of fertilization can be ensured before and after adjustment.

[0025] (2) The structural design of the adjustment mechanism allows the screw to rotate by turning the handle, which makes the inclination angles of the two outermost guide plates equal and the inclination directions opposite. This makes the operation convenient and allows for fine adjustment.

[0026] (3) The lower end of the hose is placed between two adjacent adapter plates via a connecting clamp and a second spring, which can make the lower end of the hose centered relative to the lower end of the gap, and the lower end of the hose can adjust its position as the fertilizer guide plate rotates, so as to achieve equidistant row fertilization without manual adjustment.

[0027] (4) In the structure of the disc fertilizer discharge mechanism, a rotating cover with two fertilizer outlets can be set to achieve uniform fertilizer discharge. In contrast, without the rotating cover, there will be a serious uneven situation where more fertilizer is discharged on one side of the arc-shaped baffle and less fertilizer is discharged on the other side. Attached Figure Description

[0028] Figure 1 A side view of a multi-element fertilizer spreader suitable for cantaloupe cultivation;

[0029] Figure 2 A top view of a multi-element fertilizer spreader suitable for Hami melon cultivation;

[0030] Figure 3 A first-person view structural diagram of the fertilizer guiding mechanism;

[0031] Figure 4 A second-view structural diagram of the fertilizer guiding mechanism;

[0032] Figure 5 This is a structural diagram of the turntable and the sector guide.

[0033] Figure 6 This is a cross-sectional view of the drive structure of the turntable and rotating cover.

[0034] In the diagram: 1-Walking vehicle body; 11-Frame; 2-Chain plate type fertilizer applicator; 21-First fertilizer box; 22-Chain plate mechanism; 3-Gate wheel type fertilizer applicator; 32-Gate wheel fertilizer discharge unit; 31-Second fertilizer box; 4-Disc fertilizer discharge mechanism; 41-Third fertilizer box; 41a-Fertilizer trough; 42-Turntable; 43-Fertilizer blocking unit; 44-Conveying auger; 44a-Conveying blades; 45-Cover; 46-Rotating cover; 461-Annular sidewall; 462-Fertilizer outlet 47-Drive motor; 48-Gear set; 5-Fertilizer guiding mechanism; 51-Fertilizer guiding plate; 52-First sliding shaft; 53-First spring; 54-Adjusting mechanism; 541-Drive rod; 542-Connecting rod; 543-Connecting frame; 544-Screw rod; 545-Screw sleeve; 546-Handle; 55-Hose; 56-Fan-shaped guide; 561-Separating rib; 57-Adapter plate; 58-Second sliding shaft; 59-Connecting hoop; 510-Second spring. Detailed Implementation

[0035] The invention will now be further described with reference to the accompanying drawings.

[0036] like Figure 1 and Figure 2 The multi-fertilizer spreader shown is suitable for cantaloupe cultivation. It includes a traveling vehicle 1, on which a chain plate fertilizer application mechanism 2, a grooved wheel fertilizer application mechanism 3 and a disc fertilizer discharge mechanism 4 are arranged from front to back, respectively for the discharge of organic fertilizer, granular fertilizer and powdered fertilizer.

[0037] The chain plate type fertilizer applicator 2 includes a first fertilizer box 21 and a chain plate mechanism 22 located below it; the grooved wheel type fertilizer applicator 3 includes a second fertilizer box 31 and a plurality of grooved wheel fertilizer dispensing units 32 arranged at equal intervals below the second fertilizer box 31; the disc fertilizer dispensing mechanism 4 includes a third fertilizer box 41 and a turntable 42 located in the middle of the lower part of the third fertilizer box 41, and also includes a fertilizer blocking unit 43 with an arc-shaped guard edge;

[0038] The traveling vehicle body 1 is also equipped with a fertilizer guiding mechanism 5 located below the grooved wheel fertilizer applicator 3 and between the chain plate fertilizer applicator 2 and the disc fertilizer discharge mechanism 4;

[0039] like Figure 3 and Figure 4 As shown, the fertilizer guiding mechanism 5 includes a first sliding shaft 52 and a plurality of fertilizer guiding plates 51. The number of gaps formed between all the fertilizer guiding plates 51 is the same as the number of grooved wheel fertilizer applicators 3, and each grooved wheel fertilizer applicator 3 extends into each gap through a hose 55.

[0040] The upper ends of all the fertilizer guide plates 51 are rotatably mounted relative to the frame 11 of the vehicle body 1, with the pivot axis facing forward and backward; the lower ends of all the fertilizer guide plates 51 are connected to the first sliding shaft 52 and can change position along the axial direction of the first sliding shaft 52, and a first spring 53 is sleeved on the first sliding shaft 52 between every two fertilizer guide plates 51.

[0041] like Figure 5 As shown, the fertilizer guiding mechanism 5 also includes a fan-shaped guide 56 connected to the fertilizer blocking unit 43. The fan-shaped guide 56 has a partition rib 561 to divide the interior of the fan-shaped guide 56 into a number of channels equal to the number of channels in the grooved wheel fertilizer applicator 3.

[0042] The fertilizer guiding mechanism 5 also includes an adjustment mechanism 54 that acts on the two outermost fertilizer guiding plates 51.

[0043] During operation, the chain plate fertilizer applicator 2 discharges fertilizer backward, the grooved wheel fertilizer applicator 3 discharges fertilizer downward, and the disc fertilizer applicator 4 discharges fertilizer forward. In this way, organic fertilizer, granular fertilizer and powdered fertilizer can be evenly guided by the same fertilizer guiding mechanism 5 and fall into the soil.

[0044] In this invention, by adding a reasonably designed fertilizer guiding mechanism 5, organic fertilizer, granular fertilizer and powdered fertilizer can be uniformly guided to the width range of the fertilization operation, and the width range of the fertilization operation can be adjusted as needed. By setting the first sliding shaft 52 and the first spring 53, the consistency of the width of the lower end of each gap can be ensured, and the uniformity of fertilization can be guaranteed before and after adjustment.

[0045] like Figure 4 As shown, the adjustment mechanism 54 includes a drive rod 541 centrally mounted in the left-right direction. The middle part of the drive rod 541 is hinged to the frame 11. The two ends of the drive rod 541 are respectively connected to the two outermost fertilizer guide plates 51 through connecting rods 542.

[0046] The adjustment mechanism 54 further includes a connecting frame 543 rotatably connected to one end of the drive rod 541, a screw 544 rotatably mounted on the connecting frame 543, and a handle 546 mounted on the end of the screw 544; a screw sleeve 545 that cooperates with the screw 544 is rotatably mounted on the frame 11.

[0047] The structural design of the adjustment mechanism 54 allows the screw 544 to rotate by turning the handle 546, which enables the two outermost guide plates 51 to have equal tilt angles and opposite tilt directions. This design makes the mechanism easy to operate and allows for fine adjustment.

[0048] Preferably, the lower end of each fertilizer guide plate 51 is connected to the first sliding shaft 52 via a transition plate 57; the transition plate 57 is rotatably mounted relative to the fertilizer guide plate 51, and the fertilizer guide plate 51 has a first through hole for the first sliding shaft 52 to pass through; the first through holes on the transition plates 57 corresponding to the fertilizer guide plates 51 on both sides are circular; the first through holes on the transition plates 57 corresponding to the other fertilizer guide plates 51 are elongated.

[0049] Preferably, the fertilizer guiding mechanism 5 further includes a second sliding shaft 58, and all the adapter plates 57 also have a second through hole for the second sliding shaft 58 to pass through; a connecting clamp 59 that can slide relative to the second sliding shaft 58 is sleeved on the second sliding shaft 58, and the lower end of the hose 55 is connected to the connecting clamp 59; a second spring 510 located on both sides of each connecting clamp 59 is also sleeved on the second sliding shaft 58, and the second spring 510 abuts against the connecting clamp 59 and the adapter plate 57 respectively.

[0050] The lower end of the hose 55 is placed between two adjacent adapter plates 57 via the connecting clamp 59 and the second spring 510. This allows the lower end of the hose 55 to be centered relative to the lower end of the gap, and the lower end of the hose 55 can adjust its position as the fertilizer guide plate 51 rotates, achieving equidistant row fertilization without the need for manual adjustment.

[0051] Preferably, the bottom of the third fertilizer box 41 has an elongated fertilizer trough 41a, and the disc fertilizer discharge mechanism 4 further includes a conveying auger 44 installed in the fertilizer trough 41a. The two ends of the conveying auger 44 have two sets of conveying blades 44a, and the two sets of conveying blades 44a rotate in opposite directions. A cover 45 fixed relative to the third fertilizer box 41 is installed above the middle part of the conveying auger 44, and the middle part of the fertilizer trough 41a has a fertilizer discharge port located below the cover 45.

[0052] Using the above-described mechanism, when the conveying auger 44 rotates, it can convey the fertilizer in the fertilizer tank 41a towards the center, allowing the fertilizer to enter below the cover 45 and be discharged from the fertilizer outlet. The cover 45 can prevent the fertilizer in the third fertilizer tank 41 from directly entering the fertilizer outlet.

[0053] Preferably, both sides of the top of the cover 45 have slopes to prevent fertilizer from accumulating on the top of the cover 45.

[0054] Preferably, such as Figure 5 and Figure 6As shown, the disc fertilizer discharging mechanism 4 also includes a rotating cover 46, which has an annular baffle 461 surrounding the turntable 42, and two fertilizer outlets 462 arranged symmetrically on the annular baffle 461. The rotating cover 46 can rotate actively, and the rotation speed of the rotating cover 46 is slower than that of the turntable 42. The upper surface of the turntable 42 has multiple vertical ribs that extend radially along the turntable 42, so that when the turntable 42 rotates, it can throw the fertilizer radially.

[0055] Preferably, the turntable 42 and the rotating cover 46 are driven by the same drive motor 47. The rotating cover 46 and the turntable 42 have a coaxially connected drive part. The drive part of the turntable 42 is directly connected to the drive motor 47, and the output shaft of the drive motor 47 is connected to the drive part of the turntable 42 through a gear set 48. Specifically, the gear set is a transition shaft parallel to the drive part of the rotating cover 46. The output shaft of the drive motor 47 outputs power to the transition shaft through a first gear set, and the transition shaft outputs power to the drive part of the rotating cover 46 through a second gear set. Both the first gear set and the second gear set are reduction gear sets.

[0056] During operation, the fertilizer thrown out by the turntable 42 is discharged from the fertilizer outlet 462 of the rotating cover 46. Due to the presence of the arc-shaped baffle of the fertilizer blocking unit 43, one of the two fertilizer outlets 462 of the rotating cover 46 is always blocked by the arc-shaped baffle, while the other fertilizer outlet 462 discharges fertilizer as it rotates. After the discharging fertilizer outlet 462 has rotated through an arc segment, it is blocked by the arc-shaped baffle. At the same time, the fertilizer outlet 462 that was originally blocked leaves the arc-shaped baffle to carry out fertilizer discharge operation, thus achieving continuous and uniform fertilizer discharge operation.

[0057] In the structure of the disc fertilizer discharging mechanism 4, a rotating cover 46 with two fertilizer outlets 462 is provided to achieve uniform fertilizer discharging. In contrast, without the rotating cover 46, a severe uneven situation will occur, with more fertilizer discharged on one side of the arc-shaped baffle and less fertilizer discharged on the other side.

[0058] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multi-element fertilizer spreader suitable for cantaloupe cultivation, comprising a walking vehicle (1), wherein the walking vehicle (1) has a chain plate fertilizer application mechanism (2), a grooved wheel fertilizer application mechanism (3) and a disc fertilizer discharge mechanism (4) arranged sequentially from front to back. The chain plate type fertilizer applicator (2) includes a first fertilizer box (21) and a chain plate mechanism (22); the grooved wheel type fertilizer applicator (3) includes a second fertilizer box (31) and a plurality of grooved wheel fertilizer dispensing units (32) arranged at equal intervals; the disc fertilizer dispensing mechanism (4) includes a third fertilizer box (41) and a turntable (42) located in the middle of the lower part of the third fertilizer box (41), and also includes a fertilizer blocking unit (43) with an arc-shaped guard edge. Its features are: The vehicle body (1) is also equipped with a fertilizer guiding mechanism (5) located below the grooved wheel fertilizer applicator (3) and between the chain plate fertilizer applicator (2) and the disc fertilizer discharge mechanism (4). The fertilizer guiding mechanism (5) includes a first sliding shaft (52) and a plurality of fertilizer guiding plates (51). The number of gaps formed between all the fertilizer guiding plates (51) is the same as the number of grooved wheel fertilizer applicators (3), and each grooved wheel fertilizer applicator (3) extends into each gap through a hose (55). The upper ends of all the fertilizer guide plates (51) are rotatably mounted relative to the frame (11) of the vehicle body (1), with the pivot axis facing forward and backward; the lower ends of all the fertilizer guide plates (51) are connected to the first sliding shaft (52) and can change position along the axial direction of the first sliding shaft (52); a first spring (53) is sleeved on the first sliding shaft (52) between every two fertilizer guide plates (51). The fertilizer guiding mechanism (5) also includes a fan-shaped guide (56) connected to the fertilizer blocking unit (43), and the fan-shaped guide (56) has a partition rib (561) to divide the interior of the fan-shaped guide (56) into the same number of channels as the grooved wheel fertilizer applicator (3). The fertilizer guiding mechanism (5) also includes an adjustment mechanism (54) that acts on the two outermost fertilizer guiding plates (51).

2. The multi-element fertilizer spreader suitable for cantaloupe cultivation according to claim 1, characterized in that, The adjustment mechanism (54) includes a drive rod (541) centrally mounted in the left-right direction. The middle part of the drive rod (541) is hinged to the frame (11). The two ends of the drive rod (541) are respectively connected to the two outermost fertilizer guide plates (51) through connecting rods (542). The adjustment mechanism (54) further includes a connecting frame (543) rotatably connected to one end of the drive rod (541), a screw (544) rotatably mounted on the connecting frame (543), and a handle (546) mounted on the end of the screw (544); a screw sleeve (545) cooperating with the screw (544) is rotatably mounted on the frame (11).

3. The multi-element fertilizer spreader suitable for cantaloupe cultivation according to claim 1, characterized in that, The lower end of each of the fertilizer guide plates (51) is connected to the first sliding shaft (52) via a transition plate (57); the transition plate (57) is rotatably mounted relative to the fertilizer guide plate (51), and the fertilizer guide plate (51) has a first through hole through which the first sliding shaft (52) passes; the first through holes on the transition plates (57) corresponding to the fertilizer guide plates (51) on both sides are circular; the first through holes on the transition plates (57) corresponding to the other fertilizer guide plates (51) are elongated.

4. The multi-element fertilizer spreader suitable for cantaloupe cultivation according to claim 3, characterized in that, The fertilizer guiding mechanism (5) further includes a second sliding shaft (58), and all the adapter plates (57) also have a second through hole through which the second sliding shaft (58) passes; a connecting clamp (59) that can slide relative to the second sliding shaft (58) is threaded on the second sliding shaft (58), and the lower end of the hose (55) is connected to the connecting clamp (59); a second spring (510) located on both sides of each connecting clamp (59) is also threaded on the second sliding shaft (58), and the second spring (510) abuts against the connecting clamp (59) and the adapter plate (57) respectively.

5. The multi-element fertilizer spreader suitable for cantaloupe cultivation according to claim 1, characterized in that, The bottom of the third fertilizer box (41) has a long strip-shaped fertilizer trough (41a). The disc fertilizer discharge mechanism (4) also includes a conveying auger (44) installed in the fertilizer trough (41a). The two ends of the conveying auger (44) have two sets of conveying blades (44a), and the two sets of conveying blades (44a) rotate in opposite directions. A cover (45) fixed relative to the third fertilizer box (41) is installed above the middle part of the conveying auger (44). The middle part of the fertilizer trough (41a) has a fertilizer drop outlet located below the cover (45).

6. The multi-element fertilizer spreader suitable for cantaloupe cultivation according to claim 5, characterized in that, The top two sides of the cover (45) are sloped.

7. The multi-element fertilizer spreader suitable for cantaloupe cultivation according to claim 1, characterized in that, The disc fertilizer discharging mechanism (4) further includes a rotating cover (46), which has an annular baffle (461) arranged around the turntable (42) and has two fertilizer outlets (462) arranged symmetrically on the annular baffle (461); the rotating cover (46) can rotate actively, and the rotation speed of the rotating cover (46) is slower than the rotation speed of the turntable (42).

8. The multi-element fertilizer spreader suitable for cantaloupe cultivation according to claim 7, characterized in that, The turntable (42) and the rotating cover (46) are driven by the same drive motor (47). The rotating cover (46) and the turntable (42) have a coaxial drive unit. The drive unit of the turntable (42) is directly connected to the drive motor (47), and the output shaft of the drive motor (47) is connected to the drive unit of the turntable (42) through a gear set (48).

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