Agricultural fertilizer controlled quantity fertilizer device

Through the mechanical control and switching devices, precise control of fertilizer application and flexible switching of fertilization modes are achieved, solving the problems of increased weight and fixed modes in existing technologies, and improving the applicability and efficiency of the fertilization device.

CN224386209UActive Publication Date: 2026-06-23富川瑶族自治县葛坡镇农业服务中心

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
富川瑶族自治县葛坡镇农业服务中心
Filing Date
2025-05-13
Publication Date
2026-06-23

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Abstract

The utility model relates to agricultural equipment technical field discloses a kind of agricultural fertilization controllable quantity's fertilizing device, including vehicle body and equidistant rotation connection in the bottom end of the inside of vehicle body gyro wheel, the inside of vehicle body is equipped with storage cavity, the bottom center of vehicle body is equipped with with the lower discharge chute of storage cavity inside intercommunication, the inside of lower discharge chute is equipped with quantity control device, the inside of vehicle body is rotatably connected with rotating bar by bearing.The utility model realizes the effective control of fertilization amount and the flexible switching of fertilization mode by unique quantity control device and switching device, and the quantity control device is accurately controlled fertilization amount by mechanical structure, compared with the device relying on electric equipment, reduce weight and reduce energy consumption, switching device can make fertilizing device freely convert between continuous fertilization and interval fertilization mode, meet different planting scene needs, improve the device applicability, whether it is large-area efficient fertilization or special crop on-demand fertilization, can be well adapted.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment technology, and more specifically to a fertilizer application device with controllable fertilizer application rate. Background Technology

[0002] Agricultural fertilization equipment is a device used to apply fertilizer to farmland.

[0003] A search revealed a utility model patent with publication number CN215912532U, which discloses a fertilizer applicator with controllable fertilizer application. The applicator includes a main frame, with rotatable wheels connected to both the left and right sides of the main frame. Two handles are fixedly connected to the front of the main frame, and a fertilizer cylinder is fixedly connected to the upper surface of the main frame. A drive gearbox is fixedly connected to the left side of the fertilizer cylinder.

[0004] Currently, most existing devices of the same type, including the controllable fertilization device in the aforementioned comparative documents, rely on electric equipment to control the amount of fertilizer applied. For example, the patented device uses a discharge motor to drive a rotating blade assembly to adjust the fertilizer dispensing speed. However, agricultural fertilization operations are mostly carried out outdoors, and the addition of electric equipment and battery packs would significantly increase the weight of the device, making it very strenuous for hand-push fertilization devices to move through farmland. In addition, different planting scenarios have different requirements for fertilization modes; some require intermittent fertilization, while others require continuous fertilization. However, the rotation mode of the rotating blade assembly in such devices is relatively fixed, making it impossible to flexibly switch between continuous and intermittent fertilization modes, thus reducing applicability. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a fertilizer application device with controllable amount of fertilizer application in agriculture, so as to solve the problems existing in the background art.

[0006] The utility model provides the following technical solution: a fertilizer applicator with controllable fertilizer application, comprising a vehicle body and rollers equidistantly rotatably connected to the bottom of the vehicle body. The vehicle body has a storage cavity inside, and a feeding trough communicating with the inside of the storage cavity is opened at the center of the bottom of the vehicle body. A quantity control device is installed inside the feeding trough. A rotating rod is rotatably connected to the inside of the vehicle body via a bearing. A gear is fixedly connected to one end of the rotating rod near the feeding trough. The gear is meshed with the input end of the quantity control device. A switching device is installed between the rotating rod and the rollers.

[0007] Furthermore, the quantity control device includes a positioning bearing fixedly installed on the inner wall of the feeding trough. A rotating ring is fixedly connected to the inner ring of the positioning bearing. A fixed rod is fixedly connected to the center of the inner wall of the rotating ring. A reciprocating screw is fixedly connected to the top of the fixed rod. A collar is sleeved on the outer surface of the reciprocating screw. Connecting rods are fixedly connected to both sides of the collar. The end face of the connecting rod away from the collar is fixedly connected to the inner wall of the feeding trough. A limiting rod is fixedly connected to the upper surface of the connecting rod. A sliding seat is slidably connected to the outer surface of the limiting rod. A slot is opened at the center of the sliding seat. A protrusion is fixedly connected to the inner wall of the slot. The protrusion is inserted into the thread on the surface of the slot. A toothed ring is fixedly connected to the bottom of the positioning bearing.

[0008] Furthermore, the switching device includes a connecting shaft rotatably connected inside the vehicle body via a bearing. A sliding plate is fixedly sleeved on the outer surface of the connecting shaft. A left fixed sleeve is slidably connected to the outer surface of the sliding plate. A groove matching the sliding plate is opened inside the left fixed sleeve. A positioning block is fixedly connected inside the left fixed sleeve. The other end of the connecting shaft is fixedly connected to the center end face of the roller shaft. A right fixed sleeve is fixedly sleeved on the outer surface of the rotating rod near the positioning block. A positioning groove matching the positioning block is opened inside the right fixed sleeve. Magnets are fixedly connected to the opposite faces of the left and right fixed sleeves, and the opposite faces of the two magnets on the left and right fixed sleeves have opposite magnetic properties. The surface of the gear is meshed with the surface of the gear ring.

[0009] Furthermore, the top diameter of the feeding trough is smaller than the bottom diameter, the bottom of the feeding trough extends to the lower surface of the vehicle body, and the top of the sliding seat is conical.

[0010] Furthermore, the upper half of the outer surface of the reciprocating screw is provided with threads, the outer surface of the reciprocating screw is rotatably connected to the inside of the slot, the top diameter of the limiting rod is larger than the bottom diameter, the inside of the sliding seat is provided with a long groove that matches the limiting rod, and the outer surface of the limiting rod is inserted into the long groove.

[0011] Furthermore, the positioning block and positioning groove are both octagonal, the sliding plate and sliding groove are both hexagonal, the left fixing sleeve is slidably connected to the outer surface of the sliding plate through the sliding groove, two handrails are fixedly connected to the side of the vehicle body, and a box cover is hinged to the top of the vehicle body above the storage cavity.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model achieves effective control of fertilizer application through a unique control device. The reciprocating screw in the control device works in conjunction with a sliding seat. When the roller rotates, it drives the rotating rod and gears, which in turn cause the gear ring to rotate. The reciprocating screw rotates accordingly. Under the meshing of the protrusion and slot, and the limiting action of the limiting rod, the sliding seat can slide up and down reciprocally. When the sliding seat slides up, it blocks the feeding chute; when it slides down, the fertilizer falls through the gap between it and the feeding chute. By controlling the frequency and amplitude of the sliding seat's up and down movement, the fertilizer application can be precisely controlled. Compared with existing devices that rely on electric equipment to control fertilizer application, this device does not require heavy electric equipment and battery packs, greatly reducing the weight of the device and making the hand-push fertilizer applicator easier to use in farmland. It also reduces energy consumption and meets the requirements of energy conservation and environmental protection.

[0014] 2. The design of the switching device in this utility model allows the fertilization device to flexibly switch between continuous fertilization and intermittent fertilization modes. When intermittent fertilization is needed, pushing the left fixed sleeve causes the positioning block to insert into the positioning groove of the right fixed sleeve. At this time, the roller rotates, which drives the metering device to work, realizing the sliding seat sliding up and down for intermittent fertilization. When continuous fertilization is needed, sliding the left fixed sleeve to the left causes the positioning block to disengage from the positioning groove. The rotating rod loses power, the sliding seat is fixed in position, and the fertilizer continuously falls through the gap, realizing continuous fertilization. This flexible switching method can meet the diverse needs of different planting scenarios for fertilization modes, improving the applicability of the fertilization device. Whether it is large-scale planting that requires continuous fertilization to improve efficiency or special crop planting that requires intermittent fertilization to ensure fertilizer absorption, this device can adapt well. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a cross-sectional view of the central control device of this utility model;

[0018] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0019] The attached figures are labeled as follows: 1. Car body; 2. Roller; 3. Handrail; 4. Box cover; 5. Storage cavity; 6. Feed chute; 7. Measuring device; 71. Positioning bearing; 72. Rotary ring; 73. Fixed rod; 74. Reciprocating screw; 75. Collar; 76. Connecting rod; 77. Limiting rod; 78. Sliding seat; 79. Slot; 710. Protrusion; 711. Gear ring; 8. Rotary rod; 9. Gear; 10. Switching device; 101. Right fixed sleeve; 102. Positioning groove; 103. Connecting shaft; 104. Slide plate; 105. Left fixed sleeve; 106. Slide groove; 107. Positioning block; 108. Magnet. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0021] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-4 The present invention will be further described below.

[0022] A fertilizer applicator with controllable fertilization includes a vehicle body 1 and rollers 2 equidistantly rotatably connected to the bottom of the vehicle body 1. The vehicle body 1 has a storage cavity 5 inside, and a feeding trough 6 connected to the storage cavity 5 is located at the center of the bottom of the vehicle body 1. A fertilization control device 7 is installed inside the feeding trough 6. A rotating rod 8 is rotatably connected to the inside of the vehicle body 1 via a bearing. A gear 9 is fixedly connected to one end of the rotating rod 8 near the feeding trough 6. The gear 9 is meshed with the input end of the fertilization control device 7. A switching device 10 is installed between the rotating rod 8 and the rollers 2.

[0023] In this implementation scheme, the rotation of roller 2 drives the rotation of rotating rod 8, which in turn drives the control device 7 to work, so as to realize the quantitative application of fertilizer from storage chamber 5 through feeding trough 6 or the application of fertilizer in different modes. The switching device 10 can adjust the power connection relationship between rotating rod 8 and roller 2 to adapt to different fertilization needs. All components work together to provide a hardware foundation for precision fertilization and diversified fertilization modes.

[0024] Specifically, the quantity control device 7 includes a positioning bearing 71 fixedly installed on the inner wall of the feeding trough 6. A rotating ring 72 is fixedly connected to the inner ring of the positioning bearing 71. A fixing rod 73 is fixedly connected to the center of the inner wall of the rotating ring 72. A reciprocating screw 74 is fixedly connected to the top of the fixing rod 73. A collar 75 is sleeved on the outer surface of the reciprocating screw 74. A connecting rod 76 is fixedly connected to both sides of the collar 75. The end face of the connecting rod 76 away from the collar 75 is fixedly connected to the inner wall of the feeding trough 6. A limiting rod 77 is fixedly connected to the upper surface of the connecting rod 76. A sliding seat 78 is longitudinally slidably connected to the outer surface of the limiting rod 77. A slot 79 is opened at the center of the inner side of the sliding seat 78. A protrusion 710 is fixedly connected to the inner wall of the slot 79. The protrusion 710 is inserted into the thread on the surface of the slot 79. A toothed ring 711 is fixedly connected to the bottom of the positioning bearing 71.

[0025] In this implementation scheme, the fertilizer control device 7 achieves precise control of the fertilizer application rate through a mechanical structure. The positioning bearing 71 fixes the rotating ring 72, which drives the fixed rod 73 and the reciprocating screw 74 to rotate. The collar 75 and the connecting rod 76 restrict the axial movement of the reciprocating screw 74 to ensure its stable rotation. The limit rod 77 cooperates with the sliding seat 78. Under the meshing action of the protrusion 710 and the slot 79, the sliding seat 78 can only slide up and down. When the toothed ring 711 rotates, the sliding seat 78 slides up and down reciprocally. When it slides up, it blocks the feeding trough 6. When it slides down, the fertilizer falls through the gap between it and the feeding trough 6. By controlling the frequency and amplitude of the sliding seat 78 sliding up and down, the fertilizer application rate can be precisely controlled. Compared with devices that rely on electric equipment to control the fertilizer application rate, there is no need to equip it with heavy electric equipment and battery packs, which greatly reduces the weight of the device and makes the hand-push fertilizer application device easier to move in the field. At the same time, it reduces energy consumption and meets the requirements of energy conservation and environmental protection.

[0026] Specifically, the switching device 10 includes a connecting shaft 103 rotatably connected to the inside of the vehicle body 1 via a bearing. A slide plate 104 is fixedly sleeved on the outer surface of the connecting shaft 103. A left fixed sleeve 105 is slidably connected to the outer surface of the slide plate 104. A groove 106 matching the slide plate 104 is opened inside the left fixed sleeve 105. A positioning block 107 is fixedly connected inside the left fixed sleeve 105. The other end of the connecting shaft 103 is fixedly connected to the center end face of the rotating shaft of the roller 2. A right fixed sleeve 101 is fixedly sleeved on the outer surface of the rotating rod 8 near the positioning block 107. A positioning groove 102 matching the positioning block 107 is opened inside the right fixed sleeve 101. Magnets 108 are fixedly connected to the opposite surfaces of the left fixed sleeve 105 and the right fixed sleeve 101. The opposite surfaces of the two magnets 108 on the left fixed sleeve 105 and the right fixed sleeve 101 have opposite magnetic properties. The surface of the gear 9 is meshed with the surface of the gear ring 711.

[0027] In this embodiment, the switching device 10 enables the fertilization device to flexibly switch between continuous fertilization and intermittent fertilization modes. The rotation of the connecting shaft 103 drives the slide plate 104 to rotate, and the left fixed sleeve 105 slides on the slide plate 104. The positioning block 107 cooperates with the positioning groove 102 to transmit power. When intermittent fertilization is required, the left fixed sleeve 105 is pushed so that the positioning block 107 is inserted into the positioning groove 102 of the right fixed sleeve 101. The rotation of the roller 2 drives the metering device 7 to work, so that the sliding seat 78 slides up and down to perform intermittent fertilization. When continuous fertilization is required, the left fixed sleeve 105 is slid to the left so that the positioning block 107 is disengaged from the positioning groove 102. The rotating rod 8 loses power, the sliding seat 78 is fixed in position, and the fertilizer continuously falls through the gap to achieve continuous fertilization. This flexible switching method can meet the diverse needs of different planting scenarios for fertilization modes and improve the applicability of the fertilization device. Whether it is large-scale planting that requires continuous fertilization to improve efficiency or special crop planting that requires intermittent fertilization to ensure fertilizer absorption, this device can adapt well.

[0028] Specifically, the top diameter of the feeding trough 6 is smaller than the bottom diameter, the bottom of the feeding trough 6 extends to the lower surface of the vehicle body 1, and the top of the sliding seat 78 is conical.

[0029] In this embodiment, the top of the sliding seat 78 is conical. When the sliding seat 78 slides up to block the feeding trough 6, the conical structure can better fit the inner wall of the feeding trough 6, improve the blocking effect, reduce fertilizer leakage, and ensure accurate control of fertilizer application during intermittent fertilization.

[0030] Specifically, the upper half of the outer surface of the reciprocating screw 74 is provided with threads, and the outer surface of the reciprocating screw 74 is rotatably connected to the inside of the slot 79. The top diameter of the limit rod 77 is larger than the bottom diameter. The inside of the sliding seat 78 is provided with a long groove that matches the limit rod 77, and the outer surface of the limit rod 77 is inserted into the long groove.

[0031] In this embodiment, the upper half of the outer surface of the reciprocating screw 74 is threaded, so that during rotation, the engagement of the protrusion 710 and the slot 79 can drive the sliding seat 78 to move up and down. By reasonably designing the thread length and pitch, the stroke of the sliding seat 78 can be precisely controlled, thereby accurately controlling the amount of fertilizer applied. The reciprocating screw 74 and the slot 79 are rotatably connected, ensuring stable power transmission. The top diameter of the limiting rod 77 is larger than the bottom diameter, and it cooperates with the long groove inside the sliding seat 78. While limiting the rotation of the sliding seat 78, it can also prevent the sliding seat 78 from falling off the limiting rod 77, ensuring that the sliding seat 78 can only slide up and down along the limiting rod 77, thus improving the stability and reliability of the control device 7.

[0032] Specifically, the positioning block 107 and the positioning groove 102 are both octagonal, the slide plate 104 and the slide groove 106 are both hexagonal, the left fixing sleeve 105 is slidably connected to the outer surface of the slide plate 104 through the slide groove 106, two handrails 3 are fixedly connected to the side of the vehicle body 1, and the top of the vehicle body 1 is hinged to the storage cavity 5 above the box cover 4.

[0033] In this embodiment, both the positioning block 107 and the positioning groove 102 are octagonal. This shape design ensures that the positioning block 107 and the positioning groove 102 have good fit and stability when transmitting power, preventing relative rotation and ensuring effective power transmission. This enables the control device 7 to work stably in the interval fertilization mode. Both the slide plate 104 and the slide groove 106 are hexagonal, which allows the left fixed sleeve 105 to slide smoothly on the slide plate 104 without circumferential rotation, ensuring the operation accuracy and stability of the switching device 10.

[0034] The working principle and usage process of this utility model are as follows: When in use, after opening the lid 4, the fertilizer is poured into the storage cavity 5. If intermittent fertilization is required, the left fixing sleeve 105 is slid to the right. The left fixing sleeve 105 drives the positioning block 107 to slide to the right, so that the positioning block 107 is inserted into the positioning groove 102. At this time, the left fixing sleeve 105 and the right fixing sleeve 101 are fixed together by the magnet 108. When the vehicle body 1 is pushed to move, the roller 2 drives the left fixing sleeve 105 to rotate through the positioning groove 102 and the sliding plate 104. The left fixing sleeve 105 drives the right fixing sleeve 101 to rotate through the positioning block 107. 1. The rotating rod 8 and gear 9 drive the gear ring 711 to rotate. The gear ring 711 drives the fixed rod 73 and the reciprocating screw 74 to rotate through the rotating ring 72. Since the sliding seat 78 is limited by the limiting rod 77, the sliding seat 78 cannot rotate. Therefore, after the protrusion 710 meshes with the slot 79, the rotation of the slot 79 will drive the sliding seat 78 to slide up and down inside the feeding groove 6. When the sliding seat 78 slides up, it will block the feeding groove 6 and prevent the fertilizer from falling. When the sliding seat 78 slides down, the fertilizer will fall through the gap between the sliding seat 78 and the feeding groove 6. Therefore, during the up and down sliding of the sliding seat 78, the effect of intermittent fertilization is achieved.

[0035] When intermittent fertilization is not required, the gap between the sliding seat 78 and the feeding trough 6 reaches a certain level, so that the amount of fertilizer is controlled. Then, the left fixed sleeve 105 is slid to the left, so that the positioning block 107 is disengaged from the inside of the magnet 108. The rotating rod 8 loses its power source and stops rotating. Therefore, the position of the sliding seat 78 is fixed, and the effect of continuous fertilization is achieved.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A fertilizer applicator for controllable fertilizer application, comprising a vehicle body (1) and rollers (2) rotatably connected at equal intervals to the bottom of the vehicle body (1), characterized in that: The interior of the vehicle body (1) is provided with a storage cavity (5). A feeding trough (6) communicating with the interior of the storage cavity (5) is provided at the bottom center of the vehicle body (1). A quantity control device (7) is installed inside the feeding trough (6). A rotating rod (8) is rotatably connected to the interior of the vehicle body (1) through a bearing. A gear (9) is fixedly connected to one end of the rotating rod (8) near the feeding trough (6). The gear (9) is meshed with the input end of the quantity control device (7). A switching device (10) is installed between the rotating rod (8) and the roller (2).

2. The agricultural fertilizer application device with controllable application rate according to claim 1, characterized in that: The quantity control device (7) includes a positioning bearing (71) fixedly installed on the inner wall of the feeding trough (6). A rotating ring (72) is fixedly connected to the inner ring of the positioning bearing (71). A fixed rod (73) is fixedly connected to the center of the inner wall of the rotating ring (72). A reciprocating screw (74) is fixedly connected to the top of the fixed rod (73). A collar (75) is sleeved on the outer surface of the reciprocating screw (74). Connecting rods (76) are fixedly connected to both sides of the collar (75). The connecting rods (76) are located away from the collar. The end face of (75) is fixedly connected to the inner wall of the feeding groove (6). The upper surface of the connecting rod (76) is fixedly connected to the limiting rod (77). The outer surface of the limiting rod (77) is longitudinally slidably connected to the sliding seat (78). The sliding seat (78) has a slot (79) at the center of its interior. The inner wall of the slot (79) is fixedly connected to the protrusion (710). The protrusion (710) is inserted into the thread on the surface of the slot (79). The bottom of the positioning bearing (71) is fixedly connected to the toothed ring (711).

3. The agricultural fertilizer application device with controllable application rate according to claim 2, characterized in that: The switching device (10) includes a connecting shaft (103) rotatably connected to the inside of the vehicle body (1) via a bearing. A sliding plate (104) is fixedly sleeved on the outer surface of the connecting shaft (103). A left fixed sleeve (105) is slidably connected to the outer surface of the sliding plate (104). A groove (106) matching the sliding plate (104) is opened inside the left fixed sleeve (105). A positioning block (107) is fixedly connected inside the left fixed sleeve (105). The other end of the connecting shaft (103) is fixedly connected to the rotating shaft of the roller (2). On the center end face, the rotating rod (8) is fixedly sleeved with a right fixed sleeve (101) near the outer surface of the positioning block (107). The right fixed sleeve (101) has a positioning groove (102) that matches the positioning block (107) inside. The left fixed sleeve (105) and the right fixed sleeve (101) are fixedly connected with magnets (108) on their opposite sides. The opposite sides of the two magnets (108) on the left fixed sleeve (105) and the right fixed sleeve (101) have opposite magnetic properties. The surface of the gear (9) is meshed with the surface of the gear ring (711).

4. The agricultural fertilizer application device with controllable application rate according to claim 2, characterized in that: The top diameter of the feeding trough (6) is smaller than the bottom diameter, the bottom of the feeding trough (6) extends to the lower surface of the vehicle body (1), and the top of the sliding seat (78) is conical.

5. The agricultural fertilizer application device with controllable application rate according to claim 2, characterized in that: The upper half of the outer surface of the reciprocating screw (74) is provided with threads. The outer surface of the reciprocating screw (74) is rotatably connected to the inside of the slot (79). The top diameter of the limiting rod (77) is larger than the bottom diameter. The inside of the sliding seat (78) is provided with a long groove that matches the limiting rod (77). The outer surface of the limiting rod (77) is inserted into the long groove.

6. The agricultural fertilizer application device with controllable application rate according to claim 3, characterized in that: The positioning block (107) and positioning groove (102) are both octagonal, the sliding plate (104) and sliding groove (106) are both hexagonal, the left fixing sleeve (105) is slidably connected to the outer surface of the sliding plate (104) through the sliding groove (106), two handrails (3) are fixedly connected to the side of the vehicle body (1), and the top of the vehicle body (1) is hinged to the storage cavity (5) with a box cover (4).