Quantitative fertilizer applicator for lawn

Abstract

The utility model relates to lawn quantitative fertilization device, including the solution tank for storing fertilization solvent, the walking module for keeping whole conveyance stability is carried on solution tank bottom, both sides of solution tank all are equipped with the quantitative fertilization subassembly for rolling quantitative control, the second guide frame and first guide frame for the soil loosening operation and covering soil to the both ends of solution tank are equipped respectively, the utility model discloses through double guide frame design, first guide frame covers the soil and second guide frame loosens the soil, and the quantitative fertilization subassembly linkage realizes soil pretreatment and accurate fertilization integration, avoids nutrient waste, and first connecting frame and second connecting frame pass through bolt sliding adjustment guide frame depth, and adapt to different lawn types, and three -way pipe rotary formula design combines the shunt hole, realizes multidirectional even fertilization.

Description

Technical Field

[0001] This utility model relates to the field of fertilization device technology, specifically a lawn quantitative fertilization device. Background Technology

[0002] Lawn fertilization refers to a systematic maintenance measure that involves applying a specific ratio of nutrients to supplement the mineral elements needed for lawn growth, optimize soil structure, and thus achieve healthy lawn growth, bright color, and enhanced stress resistance. It supports the lawn's metabolism and growth development. Nitrogen fertilizer directly enhances the chlorophyll content of leaves, improves yellowing, and maintains a bright green color. Solid and liquid fertilizers are delivered to the lawn through a fertilization device for precise lawn maintenance.

[0003] Traditional lawn fertilization devices mostly adopt a gravity-feed structure, mainly consisting of a fertilizer bin, a manual adjustment valve, and a centrifugal spreading disc. As the device moves, the granules in the fertilizer bin are conveyed to the fertilizer outlet by gravity or mechanical drive (such as a rotating disc or screw feeder). It relies heavily on manual adjustment of the fertilizer outlet opening or the disc speed, and cannot dynamically adjust the amount of fertilizer according to the soil nutrients and grass seed requirements, resulting in local over- or under-fertilization and affecting the overall fertilization effect. Utility Model Content

[0004] The technical problem to be solved by this utility model is that existing lawn quantitative fertilization devices mostly rely on manual adjustment of the fertilizer outlet opening or the disc rotation speed, which cannot dynamically adjust the amount of fertilizer according to the soil nutrients and grass seed requirements, resulting in local over-fertilization or under-fertilization.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a lawn quantitative fertilization device, including a solution tank for storing fertilizer solvent, a walking module for maintaining overall conveying stability at the bottom of the solution tank, quantitative fertilization components for rolling quantitative control on both sides of the solution tank, and a second guide frame and a first guide frame respectively at both ends of the solution tank for loosening compacted soil and covering soil.

[0006] The beneficial effects of this utility model are: by linking the dual guide frame design (first guide frame for soil covering, second guide frame for soil loosening) with the quantitative fertilization component, soil pretreatment and precise fertilization are integrated, avoiding nutrient waste. The depth of the guide frame is adjusted by the sliding of the first and second connecting frames with bolts to adapt to different lawn types. The three-way pipe rotation design combined with the diversion hole achieves multi-directional uniform fertilization.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, a disassembly cover is installed on the top of the solution tank, and a feed hopper is connected to the center of the top of the disassembly cover. A first expansion sleeve is provided between the feed hopper and the disassembly cover. A spring rubber damping layer is attached to the side wall of the first expansion sleeve, and an observation window is installed on the disassembly cover.

[0009] Furthermore, a first connecting frame is fixedly connected to the center of the first guide frame, and a first mounting sleeve is fitted on the end of the first connecting frame away from the first guide frame and fixedly connected to the solution tank. A sliding groove for sliding of the first connecting frame is opened in the first mounting sleeve, and an adjusting bolt is connected to the outer end of the first connecting frame. The adjusting bolt drives the first connecting frame to slide along the sliding groove, and a soil covering plate is installed on the outer end of the first guide frame.

[0010] Furthermore, a second connecting frame is fixedly connected to the center of the second guide frame. A second mounting sleeve, which is fixedly connected to the solution tank, is fitted onto the end of the second connecting frame away from the second guide frame. A sliding groove for sliding the second connecting frame is opened in the second mounting sleeve. A tightening bolt is connected to the outer end of the second connecting frame. The tightening bolt drives the second connecting frame to slide along the sliding groove. Several sets of loosening shovels are installed laterally on the outer end of the second guide frame.

[0011] Furthermore, the walking module includes a rotating rod, with a protective shell fixed to the solution tank on the outside of the rotating rod. A first motor unit is provided at both ends of the rotating rod, and a walking wheel is provided on the outside of the first motor unit. A first lithium battery module electrically connected to the first motor unit is provided between the two sets of rotating rods. Several sets of shock-absorbing grooves are circumferentially opened on the outer end of the walking wheel. An extension frame is installed at the center of the walking wheel. A positioning bolt is provided between the extension frame and the walking wheel. A pressure rod is passed through the end of the extension frame away from the walking wheel, and a pressure ball is fixed to the end of the pressure rod away from the extension frame.

[0012] Furthermore, the quantitative fertilization component includes a fixed rod attached to the side of the solution tank and a swing frame movably connected thereto. A steering rod is provided between the fixed rod and the swing frame. A first drive motor is connected to the outer end of the steering rod. The first drive motor drives the steering rod to adjust the fixed rod and the swing frame. A conveying box is provided between the fixed rod and the solution tank. Both sides of the conveying box are covered with second expansion sleeves. A spring rubber damping layer is attached to the side wall of the second expansion sleeve.

[0013] Furthermore, several sets of protective covers are linearly arranged on both sides of the swing frame. The first camera and the second camera are scattered on the protective covers respectively. A rotating sleeve is inserted through the end of the swing frame away from the fixed rod. A positioning sleeve fixed to the swing frame is fitted on the outside of the rotating sleeve. A second drive motor is connected to the top of the rotating sleeve, and a three-way pipe is connected to the bottom of the rotating sleeve. The second drive motor drives the rotating sleeve to rotate the three-way pipe. A conveying pipe connected to the conveying box is provided at the outer end of the three-way pipe.

[0014] Furthermore, both ends of the three-way pipe are connected to connecting pipes, and several diversion holes are linearly and circumferentially opened on the connecting pipes. A fertilizer cylinder is fitted on the outside of the rotating disk, and one end of the fertilizer cylinder is connected to the rotating disk. A rotary joint is provided between the rotating disk and the connecting pipe. Several sets of vibrating rods are distributed and installed on the rotating disk. A vibration generator is installed inside the vibrating rod. A second motor unit is located at the center of the rotating disk. A second lithium battery module is electrically connected to the outer end of the second motor unit. The second motor unit drives the rotating disk to rotate the fertilizer cylinder. Several diversion grooves are circumferentially opened on the outer end of the fertilizer cylinder. Several sets of fertilizer holes are linearly opened along the diversion grooves on the fertilizer cylinder. A support plate is provided between the two diversion grooves. Several sets of flexible balls are linearly installed on the support plate.

[0015] The beneficial effects of adopting the above-mentioned further solutions are: the vibrating rod and the flexible ball work together to avoid fertilizer clumping; the diversion channel and the fertilizer application hole are arranged linearly to ensure controllable coverage; the walking module adopts a shock-absorbing groove and pressure ball structure to reduce the impact of uneven ground on fertilizer application accuracy; the spring rubber damping layer wraps the expansion sleeve to absorb vibration and maintain sealing; the front loosening shovel and the rear covering plate reduce fertilizer volatilization loss and improve fertilizer efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall fertilization device of this utility model;

[0017] Figure 2 This is a schematic diagram of the second guide frame and the walking module of the fertilization device of this utility model;

[0018] Figure 3 This is a schematic diagram of the quantitative fertilization component of the fertilization device of this utility model;

[0019] Figure 4 This is a schematic diagram of the connecting pipe of the fertilizer application device of this utility model;

[0020] Figure 5 This is a schematic diagram of the fertilizer cylinder of the fertilizer application device of this utility model;

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Solution tank; 2. First guide frame; 3. Second guide frame; 4. Walking module; 5. Quantitative fertilization component; 101. Removal cover; 102. Feed hopper; 103. Observation window; 104. First expansion sleeve; 201. First mounting sleeve; 202. Adjusting bolt; 203. First connecting frame; 204. Covering plate; 301. Second mounting sleeve; 302. Second connecting frame; 303. Loosening shovel; 401. First lithium battery module; 402. Protective shell; 403. Rotating rod; 404. First motor unit; 405. Walking wheel; 406. Shock absorber groove; 407. Extension frame; 408. Positioning bolt; 409. Pressure rod; 41. 0. Pressing ball; 501. Fixing rod; 502. Conveying box; 503. Second expansion sleeve; 504. Conveying pipe; 505. Swing frame; 506. Steering rod; 507. First drive motor; 508. Protective cover; 509. First camera; 510. Second camera; 511. Positioning sleeve; 512. Second drive motor; 513. Rotating sleeve; 514. T-pipe; 515. Connecting pipe; 516. Diverter hole; 517. Rotating disk; 518. Vibrating rod; 519. Fertilizer cylinder; 520. Diverter trough; 521. Fertilizer hole; 522. Flexible ball; 523. Second motor set; 524. Second lithium battery module. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0025] like Figure 1-5 As shown, it includes a solution tank 1 for storing fertilizer solvent, a walking module 4 for maintaining overall transport stability at the bottom of the solution tank 1, quantitative fertilizer application components 5 for rolling and quantitative control on both sides of the solution tank 1, and a second guide frame 3 and a first guide frame 2 for loosening compacted soil and covering soil at both ends of the solution tank 1.

[0026] like Figure 1-3As shown, a disassembly cover 101 is installed on the top of the solution tank 1. A guide hopper 102 is connected to the center of the top of the disassembly cover 101. A first expansion sleeve 104 is provided between the guide hopper 102 and the disassembly cover 101. A spring rubber damping layer is attached to the side wall of the first expansion sleeve 104. An observation window 103 is installed on the disassembly cover 101. A first connecting frame 203 is fixedly connected to the center of the first guide frame 2. A first mounting sleeve 201 fixedly connected to the solution tank 1 is sleeved on the end of the first connecting frame 203 away from the first guide frame 2. A sliding groove for the first connecting frame 203 to slide is opened in the first mounting sleeve 201. An adjusting bolt 202 is connected to the outer end of the first connecting frame 203. The adjusting bolt 202 drives the first connecting frame 203 to slide along the sliding groove. A soil covering plate 204 is installed on the outer end of the first guide frame 2.

[0027] like Figure 2-4 As shown, a second connecting frame 302 is fixedly connected to the center of the second guide frame 3. A second mounting sleeve 301, which is fixedly connected to the solution tank 1, is fitted onto the end of the second connecting frame 302 away from the second guide frame 3. A sliding groove for the second connecting frame 302 to slide is provided in the second mounting sleeve 301. A tightening bolt is connected to the outer end of the second connecting frame 302. The tightening bolt drives the second connecting frame 302 to slide along the sliding groove. Several sets of loosening shovels 303 are horizontally installed on the outer end of the second guide frame 3. The walking module 4 includes a rotating rod 403. A protective shell 402, which is fixedly connected to the solution tank 1, is fitted onto the outer side of the rotating rod 403. Both ends of the rotating rod 403 are provided with a first motor unit 404. A traveling wheel 405 is sleeved on the outside of the first motor unit 404. A first lithium battery module 401 electrically connected to the first motor unit 404 is provided between the two sets of rotating rods 403. Several sets of shock-absorbing grooves 406 are circumferentially opened on the outer end of the traveling wheel 405. An extension frame 407 is installed at the center of the traveling wheel 405. A positioning bolt 408 is provided between the extension frame 407 and the traveling wheel 405. A pressure rod 409 is passed through the end of the extension frame 407 away from the traveling wheel 405. A pressure ball 410 is fixedly connected to the end of the pressure rod 409 away from the extension frame 407.

[0028] like Figure 3-5As shown, the quantitative fertilization component 5 includes a fixed rod 501 attached to the side of the solution tank 1 and a swing frame 505 movably connected thereto. A steering rod 506 is provided between the fixed rod 501 and the swing frame 505. A first drive motor 507 is connected to the outer end of the steering rod 506. The first drive motor 507 drives the steering rod 506 to adjust the fixed rod 501 and the swing frame 505. A conveying box 502 is provided between the fixed rod 501 and the solution tank 1. Both sides of the conveying box 502 are covered with second expansion sleeves 503. The sidewalls are fitted with spring rubber damping layers. Several sets of protective covers 508 are linearly arranged on both sides of the swing frame 505. A first camera 509 and a second camera 510 are scattered on the protective covers 508. A rotating sleeve 513 passes through the end of the swing frame 505 away from the fixed rod 501. A positioning sleeve 511, fixed to the swing frame 505, is fitted on the outside of the rotating sleeve 513. A second drive motor 512 is connected to the top of the rotating sleeve 513, and a three-way pipe 514 is connected to the bottom of the rotating sleeve 513. The drive sleeve 513 drives the three-way pipe 514 to rotate. The outer end of the three-way pipe 514 is provided with a conveying pipe 504 that communicates with the conveying box 502. Both ends of the three-way pipe 514 are connected to connecting pipes 515. Several diversion holes 516 are linearly and circumferentially opened on the connecting pipes 515. A fertilizer cylinder 519 is sleeved on the outside of the rotating disk 517. One end of the fertilizer cylinder 519 is connected to the rotating disk 517. A rotary joint is provided between the rotating disk 517 and the connecting pipe 515. Several sets of vibrating rods 518 are distributed and installed on the rotating disk 517. The interior of 518 is equipped with a vibration generator. The center of the rotating disk 517 is equipped with a second motor group 523. The outer end of the second motor group 523 is electrically connected to a second lithium battery module 524. The second motor group 523 drives the rotating disk 517 to rotate the fertilizer cylinder 519. The outer end of the fertilizer cylinder 519 is provided with several diversion channels 520. Several sets of fertilizer holes 521 are linearly opened along the diversion channels 520 on the upper edge of the fertilizer cylinder 519. A support plate is provided between the two diversion channels 520. Several sets of flexible balls 522 are linearly installed on the support plate.

[0029] Working principle: Solution storage and transportation: Fertilizer solution is injected into solution tank 1 through feed hopper 102. The liquid level can be monitored in real time by removing the observation window 103 of cover 101. The first expansion sleeve 104 (EPDM material) and spring rubber damping layer buffer the liquid to shake, keeping the transportation stable.

[0030] The walking wheels 405 are driven by the first motor unit 404, and the shock-absorbing grooves 406 and the pressure balls 410 adapt to changes in terrain.

[0031] When the walking wheel 405 (with shock-absorbing groove 406) moves forward, the front-facing first camera 509 (Hikvision DS-2CD3T47EWD-L 2-megapixel wide-angle infrared) scans the lawn color, and the second camera 510 (same model) monitors the soil exposure rate.

[0032] The loosening shovel 303 (65Mn spring steel) of the second guide frame 3 loosens the compacted soil in advance, and the covering plate 204 (polyurethane coated) of the first guide frame 2 covers the fertilization area, forming a closed loop of loosening soil, fertilization and covering soil.

[0033] The swing frame 505 adjusts its angle via the first drive motor 507 (such as a stepper motor 42BYGH34) through the steering rod 506, controls the contact pressure between the fertilizer cylinder 519 and the lawn, and controls the height of the swing frame (adjustable from 5 to 30 cm above the ground), and synchronously controls the opening of the three-way pipe 514 (0% to 100% stepless adjustment).

[0034] The second drive motor 512 (brushed DC motor BLDC-24V) drives the rotating sleeve 513, which in turn drives the three-way pipe 514 to rotate and switch the diversion hole 516, and the fertilizer enters the fertilizer cylinder 519 through the conveying pipe 504.

[0035] Fertilizer in solution tank 1 flows into tee pipe 514 via conveyor box 502 (lined with polytetrafluoroethylene for corrosion protection);

[0036] The second drive motor 512 (DC 24V brushless motor) drives the fertilizer cylinder 519 to rotate (0-120rpm), while the vibration generator (Morning Sun FC-12040, 40W) drives the vibrating rod 518 to vibrate at high frequency to prevent fertilizer from sticking to the wall.

[0037] Fertilizer is sprayed from the fertilization hole 521 (φ2mm laser drill hole), and after being diffused through the diversion hole 516, it covers the target area.

[0038] Specifically, the first expansion sleeve 104 and the second expansion sleeve 503 are composite structures of nitrile rubber and stainless steel helical springs (pressure resistant 0.8MPa), used to buffer pipeline vibration.

[0039] The spring rubber damping layer is made of silicone rubber and disc spring sheet. The flexible ball 522 is made of nano silicone material (Shore hardness A30) and is embedded between the fertilizer cylinder 519 and the diversion groove 520 to prevent clogging when fertilizer particles collide. The protective cover 508 is a transparent polycarbonate cover (IP67 protection level) with a built-in camera waterproof sealing ring. The shock absorption groove 406 is a ring array of 12 trapezoidal grooves on the side wall of the walking wheel 405, with embedded polyurethane buffer blocks (capable of withstanding 0.5G impact).

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lawn quantitative fertilization device, characterized in that: It includes a solution tank (1) for storing fertilizer solvent, a walking module (4) for maintaining overall transport stability at the bottom of the solution tank (1), a quantitative fertilizer application component (5) for rolling quantitative control on both sides of the solution tank (1), and a second guide frame (3) and a first guide frame (2) for loosening compacted soil and covering soil at both ends of the solution tank (1).

2. The lawn quantitative fertilization device according to claim 1, characterized in that, The solution tank (1) is equipped with a disassembly cover (101) on the top. A guide hopper (102) is connected to the center of the top of the disassembly cover (101). A first expansion sleeve (104) is provided between the guide hopper (102) and the disassembly cover (101). A spring rubber damping layer is attached to the side wall of the first expansion sleeve (104). An observation window (103) is installed on the disassembly cover (101).

3. The lawn quantitative fertilization device according to claim 1, characterized in that, The first guide frame (2) is fixedly connected to the center of the first connecting frame (203). The first connecting frame (203) is fitted with a first mounting sleeve (201) fixed to the solution tank (1) at the end away from the first guide frame (2). The first mounting sleeve (201) has a sliding groove for the sliding of the first connecting frame (203). The outer end of the first connecting frame (203) is connected to an adjusting bolt (202). The adjusting bolt (202) drives the first connecting frame (203) to slide along the sliding groove. The outer end of the first guide frame (2) is fitted with a soil covering plate (204).

4. The lawn quantitative fertilization device according to claim 1, characterized in that, The second guide frame (3) is fixedly connected to the center of the second connecting frame (302). The end of the second connecting frame (302) away from the second guide frame (3) is fitted with a second mounting sleeve (301) which is fixedly connected to the solution tank (1). The second mounting sleeve (301) has a sliding groove for the second connecting frame (302) to slide. The outer end of the second connecting frame (302) is connected with a tightening bolt. The tightening bolt drives the second connecting frame (302) to slide along the sliding groove. Several sets of loosening shovels (303) are installed laterally on the outer end of the second guide frame (3).

5. The lawn quantitative fertilization device according to claim 1, characterized in that, The walking module (4) includes a rotating rod (403), a protective shell (402) fixed to the solution tank (1) is fitted on the outside of the rotating rod (403), a first motor unit (404) is provided at both ends of the rotating rod (403), a walking wheel (405) is fitted on the outside of the first motor unit (404), a first lithium battery module (401) electrically connected to the first motor unit (404) is provided between the two sets of rotating rods (403), a number of shock-absorbing grooves (406) are provided circumferentially on the outer end of the walking wheel (405), an extension frame (407) is installed at the center of the walking wheel (405), a positioning bolt (408) is provided between the extension frame (407) and the walking wheel (405), a pressure rod (409) is provided at the end of the extension frame (407) away from the walking wheel (405), and a pressure ball (410) is fixedly connected at the end of the pressure rod (409) away from the extension frame (407).

6. The lawn quantitative fertilization device according to claim 1, characterized in that, The quantitative fertilization component (5) includes a fixed rod (501) attached to the side of the solution tank (1) and a swing frame (505) movably connected. A steering rod (506) is provided between the fixed rod (501) and the swing frame (505). A first drive motor (507) is connected to the outer end of the steering rod (506). The first drive motor (507) drives the steering rod (506) to adjust the fixed rod (501) and the swing frame (505). A conveying box (502) is provided between the fixed rod (501) and the solution tank (1). Both sides of the conveying box (502) are covered with a second expansion sleeve (503). A spring rubber damping layer is attached to the side wall of the second expansion sleeve (503).

7. The lawn quantitative fertilization device according to claim 6, characterized in that, Several sets of protective covers (508) are linearly arranged on both sides of the swing frame (505). A first camera (509) and a second camera (510) are scattered on the protective covers (508). A rotating sleeve (513) is provided at the end of the swing frame (505) away from the fixed rod (501). A positioning sleeve (511) fixed to the swing frame (505) is fitted on the outside of the rotating sleeve (513). A second drive motor (512) is connected to the top of the rotating sleeve (513). A three-way pipe (514) is connected to the bottom of the rotating sleeve (513). The second drive motor (512) drives the rotating sleeve (513) to rotate the three-way pipe (514). A conveying pipe (504) connected to the conveying box (502) is provided at the outer end of the three-way pipe (514).

8. The lawn quantitative fertilization device according to claim 7, characterized in that, Both ends of the three-way pipe (514) are connected to connecting pipes (515). Several flow holes (516) are linearly and circumferentially opened on the connecting pipes (515). A fertilizer cylinder (519) is sleeved on the outside of the rotating disk (517). One end of the fertilizer cylinder (519) is connected to the rotating disk (517). A rotary joint is provided between the rotating disk (517) and the connecting pipe (515). Several sets of vibrating rods (518) are distributed and installed on the rotating disk (517). A vibration generator is provided inside the vibrating rod (518). The center of the rotating disk (517) is set with There is a second motor unit (523), and the second motor unit (523) is electrically connected to a second lithium battery module (524) at its outer end. The second motor unit (523) drives the rotating disk (517) to rotate the fertilizer cylinder (519). The fertilizer cylinder (519) has several diversion channels (520) circumferentially opened at its outer end. Several fertilizer holes (521) are linearly opened along the diversion channels (520) on the upper side of the fertilizer cylinder (519). A support plate is provided between the two diversion channels (520), and several flexible balls (522) are linearly installed on the support plate.

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