Corn topdressing device

Abstract

The utility model relates to the technical field of fertilizing devices, and particularly discloses a corn topdressing device which comprises a backpack type fertilizer storage container, a discharge port is arranged below the backpack type fertilizer storage container, a spiral conveyor is fixed at the discharge port, and a quantitative fertilizer feeding device is fixed at one end of the spiral conveyor. A connecting hose is detachably connected to a discharging port of the spiral conveyor, a manual fertilizer feeding device is connected to the end, away from the backpack type fertilizer storage container, of the connecting hose, and the quantitative fertilizer feeding device comprises a ratchet wheel fixed to a rotating shaft of the spiral conveyor and a lantern ring rotationally installed on the rotating shaft of the spiral conveyor; a clamping plate matched with the ratchet wheel is fixed to the interior of the lantern ring through a pin shaft, and a pressing handle is fixed to the outer wall of the lantern ring. The device has the advantages that a large amount of fertilizer can be stored in the storage box at a time through backpack operation, the fertilizer can be directly scattered to corn rhizomes through the manual fertilizer feeding device during fertilization without stooping, more labor is saved, and quantitative fertilization can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fertilizing devices, in particular to a corn topdressing device. Background Art

[0002] Currently, there are two main ways to fertilize corn. One is to drill fertilizer into the field along with the seeds during sowing. The other is to apply topdressing after the corn grows to 30-50cm. Drill fertilization will cause a large amount of fertilizer loss. When corn enters the peak growing season, the yield will be reduced due to lack of sufficient fertilizer. Topdressing can ensure sufficient fertilizer supplementation, but in order not to crush the corn seedlings, many people use manual topdressing, which is labor-intensive and uneven in fertilizer application.

[0003] Chinese patent application number CN201420304415.3 discloses a precision topdressing device for corn. Although the patent can accurately control the amount of fertilizer applied, the storage tank has limited storage capacity for fertilizer, requiring frequent replenishment of fertilizer, and the user needs to bend over to operate the device, making it inconvenient to use in the field. Utility Model Content

[0004] The utility model proposes a corn topdressing device in order to solve the above problems.

[0005] The technical solution of the present utility model is achieved as follows:

[0006] A corn topdressing device comprises a backpack fertilizer storage container, two support frames are symmetrically installed below the backpack fertilizer storage container, a discharge port is provided below the backpack fertilizer storage container, a screw conveyor is fixed at the discharge port, a quantitative fertilizer delivery device is fixed at one end of the screw conveyor, a connecting hose is detachably installed at the discharge port of the screw conveyor, a manual fertilizer delivery device is connected to the end of the connecting hose away from the backpack fertilizer storage container, the quantitative fertilizer delivery device comprises a ratchet fixed on the screw conveyor rotating shaft and a collar rotatably installed on the screw conveyor rotating shaft, a clamping plate mounted in cooperation with the ratchet is fixed on the inside of the collar via a pin, and a pressing handle is fixed on the outer wall of the collar.

[0007] Furthermore, the backpack fertilizer storage container includes a storage box, two straps are installed on one side of the storage box through a detachable connection, a feeding hopper is formed at the upper end of the backpack fertilizer storage container, and a guide plate inclined toward the discharge port is formed inside the lower end of the backpack fertilizer storage container.

[0008] Furthermore, a box cover is installed on the feeding hopper through a detachable connection.

[0009] Furthermore, the manual fertilizer feeding device includes a fertilizer pipe, a connecting joint for connecting with the connecting hose is formed on the upper side wall of the fertilizer pipe, and a handle rod is integrally formed on the upper side wall of the fertilizer pipe.

[0010] Furthermore, a blocking cover is hingedly fixed at the pipe opening at the lower end of the fertilizer pipe, and at least two limit cards are fixed on the outer wall of the fertilizer pipe along the length direction. A traction wire is fixed at one end of the blocking cover, and the traction wire passes through the limit card. A handle is fixed at the end of the traction wire close to the handle rod, and a reset spring is nested on the outside of the end of the traction wire close to the blocking cover. The reset spring is in a compressed state, and both ends of the reset spring are respectively against the blocking cover and the limit card.

[0011] Furthermore, a fertilizer amount control mechanism is fixed on the side wall of the backpack fertilizer storage container near the quantitative fertilizer placement device.

[0012] Furthermore, the fertilizer amount control mechanism includes a fixed plate, on which a plurality of adjustment screw holes are formed in an array, wherein a limit rod is installed in one of the adjustment screw holes through a threaded connection, and the limit rod is located on the rotation path of the pressing handle.

[0013] By adopting the above technical solution, the beneficial effects of the utility model are: backpack operation, a large amount of fertilizer can be stored in the storage box at one time, and when fertilizing, the fertilizer can be directly spread on the corn rhizomes using a manual fertilizer feeding device without bending over, which is more labor-saving and can be fertilized in a quantitative manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0015] Figure 1 It is the first stereogram of the present utility model;

[0016] Figure 2 It is a second stereogram of the present utility model;

[0017] Figure 3 It is the main view of the utility model;

[0018] Figure 4 It is a main sectional view of the utility model;

[0019] Figure 5 It is a side view of the utility model;

[0020] Figure 6 This is a schematic structural diagram of a quantitative fertilizer placement device of the present utility model;

[0021] Figure 7 This is a simplified structural diagram of the fertilizer application amount control mechanism of the present utility model.

[0022] The following are the descriptions of the reference numerals:

[0023] 1. Backpack fertilizer storage container; 11. Storage box; 12. Guide plate; 13. Shoulder strap; 14. Feed hopper; 15. Box cover; 2. Screw conveyor; 3. Connecting hose; 4. Manual fertilizer feeding device; 41. Fertilizer tube; 42. Connecting joint; 43. Handle bar; 44. Sealing cover; 45. Return spring; 46. Pull wire; 47. Handle; 48. Limit card; 5. Quantitative fertilizer release device; 51. Ratchet; 52. Ring; 53. Card; 54. Press handle; 6. Support frame; 7. Fertilizer amount control mechanism; 71. Fixing plate; 72. Adjusting screw hole; 73. Limit rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1-Figure 7 As shown, a corn topdressing device includes a backpack fertilizer storage container 1. The backpack operation relies on the strength of the waist to bear the weight, and more fertilizer can be carried at a time. Two support frames 6 are symmetrically installed below the backpack fertilizer storage container 1. A discharge port is provided below the backpack fertilizer storage container 1, and a screw conveyor 2 is fixed at the discharge port. The support frame 6 can prevent the screw conveyor 2 from being damaged by collision. A quantitative fertilizer delivery device 5 is fixed at one end of the screw conveyor 2. A connecting hose 3 is installed at the discharge port of the screw conveyor 2 through a detachable connection. The end of the connecting hose 3 away from the backpack fertilizer storage container 1 is connected to a manual fertilizer delivery device 4, which delivers quantitative fertilizer. The fertilizer device 5 includes a ratchet 51 fixed on the rotating shaft of the screw conveyor 2 and a collar 52 rotatably mounted on the rotating shaft of the screw conveyor 2. A clamping plate 53 is fixed to the inside of the collar 52 through a pin and is mounted in cooperation with the ratchet 51. A pressing handle 54 is fixed to the outer wall of the collar 52. By rotating the pressing handle 54, the ratchet 51 can be driven to rotate. The rotation of the ratchet 51 can drive the screw conveyor 2 to work and quantitatively transport the fertilizer in the backpack fertilizer storage container 1 to the connecting hose 4. Then the fertilizer automatically slides into the manual fertilizer feeding device 4 under the action of gravity, and slides along the manual fertilizer feeding device 4 to the corn rhizome to complete the fertilization work.

[0026] In this embodiment, the backpack fertilizer storage container 1 includes a storage box 11, which is made of ABS engineering plastic, is strong and lightweight, and two straps 13 are installed on one side of the storage box 11 through a detachable connection. A hopper 14 is formed at the upper end of the backpack fertilizer storage container 1, and a guide plate 12 is formed inside the lower end of the backpack fertilizer storage container 1, which is inclined toward the discharge port, so that the fertilizer can automatically slide toward the discharge port to avoid fertilizer residue in the storage box 11.

[0027] In this embodiment, a box cover 15 is installed on the feeding hopper 14 through a detachable connection, which can prevent rainwater, water droplets, etc. from entering the storage box 11 and wetting the fertilizer and causing it to melt.

[0028] In this embodiment, the manual fertilizing device 4 includes a fertilizing tube 41, and a connecting joint 42 is formed on the upper side wall of the fertilizing tube 41 to cooperate with the connecting hose 3. A handle rod 43 is integrally formed on the upper side wall of the fertilizing tube 41. When fertilizing, the position of the lower end of the fertilizing tube 41 can be controlled by holding the handle rod 43 to thereby control the fertilization position.

[0029] In this embodiment, a blocking cover 44 is hingedly fixed at the lower end of the fertilizer pipe 41, and at least two limit cards 48 are fixed on the outer wall of the fertilizer pipe 41 along the length direction. A traction wire 46 is fixed at one end of the blocking cover 44, and the traction wire 46 passes through the limit card 48. A handle 47 is fixed at the end of the traction wire 46 close to the handle rod 43, and a return spring 45 is nested on the outside of the end of the traction wire 46 close to the blocking cover 44. The return spring 45 is in a compressed state, and the two ends of the return spring 45 respectively rest on the blocking cover 44 and the limit card 48. When not in use, the blocking cover 44 will automatically block the lower end of the fertilizer pipe 41 due to the action of the return spring 45. When fertilizing is needed, the finger pulls the handle 47 When it moves toward the handle rod 43, it can drive the blocking cover 44 to rotate so that the lower end of the fertilizer pipe 41 is opened, and the fertilizer stored in the fertilizer pipe 41 can automatically slide out and be spread to the corresponding place. When fertilizing, a portion of fertilizer can be stored in the fertilizer pipe 41 in advance, and then the handle 47 can be pulled while the other hand pulls and presses the pressing handle 54 to drive the screw conveyor 2 to work. Since it takes a certain amount of time for the fertilizer to fall from the connecting hose 3, the handle 47 is released after the pre-stored fertilizer is pulled. When the blocking cover 44 is re-blocked at the lower end of the fertilizer pipe 41, the newly lowered fertilizer has not yet fallen to the lower end of the fertilizer pipe 41. Relying on the time difference between the two, rapid fertilization can be achieved.

[0030] In this embodiment, a fertilizer amount control mechanism 7 is fixed on the side wall of the backpack fertilizer storage container 1 near the quantitative fertilizer device 5. The fertilizer amount control mechanism 7 is used to control the rotation limit position of the quantitative fertilizer device 5, thereby controlling the single fertilizer amount.

[0031] In this embodiment, the fertilizer amount control mechanism 7 includes a fixed plate 71, and a plurality of adjustment screw holes 72 are formed in an array on the fixed plate 71. A limit rod 73 is installed in one of the adjustment screw holes 72 through a threaded connection. The limit rod 73 is located on the rotation path of the pressing handle 54. The rotation limit position of the pressing handle 54 is adjusted by adjusting the position of the limit rod 73.

[0032] The working principle of the present invention is as follows: when in use, the position of the limit rod 73 is adjusted according to the amount of fertilizer to be applied, and then the fertilizer is poured into the storage box 11. The fertilizer applicator carries the storage box 11 on his back and walks in the field. He holds the handle rod 43 with one hand so that the lower end of the fertilizer pipe 41 is close to the corn plant, and holds the pressing handle 54 with the other hand. When the pressing handle 54 is rotated up and down once, the screw conveyor 2 can be driven to rotate a certain angle to deliver a certain amount of fertilizer into the fertilizer pipe 41. Then, the handle is held tightly. The fingers of the rod 43 pull the handle 47 to move it toward the handle rod 43, and the sealing cover 44 is driven to rotate by the traction wire 46 to open the lower pipe mouth of the fertilizer pipe 41. The fertilizer pre-stored in the fertilizer pipe 41 automatically slides out of the fertilizer pipe 41 under the action of gravity and is scattered on the roots of the corn plant. When the handle 47 is released, the sealing cover 44 re-seals the lower pipe mouth of the fertilizer pipe 41 under the action of the reset spring 45, and the fertilizer that slipped out of the connecting hose 3 is re-stored in the fertilizer pipe 41.

[0033] Components not described in detail herein are prior art.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A corn topdressing device, characterized by: The invention comprises a backpack fertilizer storage container (1), wherein two support frames (6) are symmetrically installed below the backpack fertilizer storage container (1), a discharge port is provided below the backpack fertilizer storage container (1), a screw conveyor (2) is fixed at the discharge port, a quantitative fertilizer delivery device (5) is fixed at one end of the screw conveyor (2), a connecting hose (3) is detachably installed at the discharge port of the screw conveyor (2), and a manual fertilizer delivery device (4) is connected to the end of the connecting hose (3) away from the backpack fertilizer storage container (1), and the quantitative fertilizer delivery device (5) comprises a ratchet (51) fixed on the rotating shaft of the screw conveyor (2) and a collar (52) rotatably installed on the rotating shaft of the screw conveyor (2), a card plate (53) matched with the ratchet (51) is fixed on the inside of the collar (52) through a pin, and a pressing handle (54) is fixed on the outer wall of the collar (52).

2. A corn topdressing device according to claim 1, characterized in that: The backpack fertilizer storage container (1) comprises a storage box (11), two shoulder straps (13) are detachably connected and mounted on one side of the storage box (11), a feed hopper (14) is formed at the upper end of the backpack fertilizer storage container (1), and a guide plate (12) inclined toward a discharge port is formed inside the lower end of the backpack fertilizer storage container (1).

3. A corn topdressing device according to claim 2, characterized in that: The feed hopper (14) is provided with a box cover (15) via a detachable connection.

4. A corn topdressing device according to claim 1, characterized in that: The manual fertilizer feeding device (4) comprises a fertilizer pipe (41), a connecting joint (42) for connecting with the connecting hose (3) is formed on the upper side wall of the fertilizer pipe (41), and a handle rod (43) is integrally formed on the upper side wall of the fertilizer pipe (41).

5. A corn topdressing device according to claim 4, characterized in that: A blocking cover (44) is hingedly fixed at the lower end of the fertilizer pipe (41), and at least two limit cards (48) are fixed on the outer wall of the fertilizer pipe (41) along the length direction. A traction wire (46) is fixed at one end of the blocking cover (44), and the traction wire (46) passes through the limit card (48). A handle (47) is fixed at one end of the traction wire (46) close to the handle rod (43). A reset spring (45) is nested outside the end of the traction wire (46) close to the blocking cover (44), and the reset spring (45) is in a compressed state. The two ends of the reset spring (45) respectively abut against the blocking cover (44) and the limit card (48).

6. A corn topdressing device according to claim 1, characterized in that: A fertilizer application amount control mechanism (7) is fixed on the side wall of the backpack fertilizer storage container (1) at a position close to the quantitative fertilizer placement device (5).

7. A corn topdressing device according to claim 6, characterized in that: The fertilizer application amount control mechanism (7) comprises a fixing plate (71), on which a plurality of adjusting screw holes (72) are formed in an array, wherein a limiting rod (73) is installed in one of the adjusting screw holes (72) through a threaded connection, and the limiting rod (73) is located on the rotation path of the pressing handle (54).

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