A detachable fertilizer spray head assembly

Abstract

The utility model discloses a detachable fertilizer spray head assembly relates to agricultural equipment technical field, including fertilizer conveying pipe and the fixed ring of sleeve joint in fertilizer conveying pipe close to the fixed ring of top end outer wall, the bottom of fertilizer conveying pipe is provided with rotary butt joint component, the rotary butt joint component includes upper conical disc and lower conical disc, and the bottom fixed connection of lower conical disc has three groups of bottom pipe. The utility model many spray nozzles are connected with the bottom pipe through the thread, and the dismounting only needs to rotate the operation, and need not special tool, and the filter component of built-in spray nozzle is helped with permanent magnet ring repulsion, and can be automatically moved up after the spray nozzle is disassembled, is convenient for quick taking out cleaning or replacing filter screen, and the maintenance difficulty is reduced greatly, and three groups of different types of spray nozzles (directly shoot, scatter, atomization) can be switched fast through the rotation lower conical disc, and are suitable for different fertilizer form and planting scene, need not overall replacement spray head, and the equipment versatility is improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment technology, specifically to a detachable fertilizer nozzle assembly. Background Technology

[0002] Fertilizers are substances that provide one or more essential nutrients for plants, improve soil properties, and enhance soil fertility. Crops need fertilization because the nutrients in the soil are gradually depleted during long-term cultivation and crop growth. Fertilization can replenish the nutrients lacking in the soil, provide the nutrients needed by plants, and promote crop growth and development.

[0003] The prior art, disclosed in publication number CN221996055U, is a fertilization device for planting, relating to the field of agricultural equipment. It includes a fertilization sprayer, a frame, several adjustment mechanisms, and several fertilizer nozzles. One side of the frame is fixedly connected to one side of the fertilization sprayer. One side of each adjustment mechanism is movably inserted into the frame. One side of each fertilizer nozzle is fixedly connected to the adjustment mechanism on the side away from the frame. Movement is achieved by pulling a drive assembly, which in turn drives a movable plate. The movable plate, through a connecting rod, moves a locking column, releasing the adjustment mechanisms from the frame and simultaneously moving the fertilizer nozzles through a support assembly. This allows for free adjustment of the fertilizer nozzle position. This structure eliminates the need for multiple fertilizations in areas with irregular planting spacing to ensure fertilization effectiveness, thus reducing the labor intensity of workers to some extent.

[0004] However, the fertilizer nozzles in this existing technology are fixedly mounted on the frame. Therefore, when maintenance or replacement of the nozzles is required, the connecting parts on them must be disassembled together before subsequent work can be carried out, which is too troublesome. Moreover, if different scenarios such as liquid fertilizer atomization and granular fertilizer scattering are to be adapted, the entire nozzle needs to be replaced, which makes the operation even more cumbersome and affects the efficiency of fertilization operations. Utility Model Content

[0005] The purpose of this invention is to provide a detachable fertilizer nozzle assembly to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A detachable fertilizer nozzle assembly includes a fertilizer delivery pipe and a fixing ring sleeved on the outer wall near the top of the fertilizer delivery pipe. A rotating docking assembly is provided at the bottom end of the fertilizer delivery pipe. The rotating docking assembly includes an upper conical disc and a lower conical disc. Three sets of receiving bottom pipes are fixedly connected to the bottom end of the lower conical disc. The bottom ends of the three sets of receiving bottom pipes are respectively threaded with a direct spray nozzle, a scattering nozzle, and an atomizing nozzle. A filter assembly is provided on the inner wall near the top of the direct spray nozzle. The filter assembly includes an internal mounting cylinder. A locking component is provided at the bottom of the inner wall of the upper conical disk. The locking component is used to lock the upper conical disk and the lower conical disk, and the two can rotate relative to each other about the central extension line as an axis. A positioning ring is fixedly connected to the inner wall of the fertilizer delivery pipe, and a docking tube is movably connected to the inner wall of the positioning ring. A return spring is fixedly connected to the outer wall of the docking tube near the top end, and the bottom end of the return spring is fixedly connected to the upper surface of the positioning ring.

[0007] A further improvement of this utility model is that the locking assembly includes a positioning shaft cylinder, which is fixedly connected to the bottom center of the upper conical disk. A fastening rod is movably inserted into the inner wall of the positioning shaft cylinder. The bottom end of the positioning shaft cylinder movably passes through the lower conical disk. A fastening nut is threadedly connected to the bottom end of the fastening rod. A locking ring adapted to the fastening rod is fixedly connected to the bottom of the concave surface of the upper conical disk. A mating hole adapted to the positioning shaft cylinder is opened at the bottom of the concave surface of the lower conical disk.

[0008] A further improvement of this utility model is that: a locking tooth is fixedly connected to the outer wall of the fastening rod near the top end, and an auxiliary slot adapted to the locking tooth is opened on the inner wall of the locking ring, and the outer wall of the locking tooth is movably inserted into the inner wall of the auxiliary slot.

[0009] A further improvement of this utility model is that the three sets of receiving bottom pipes are arranged in a ring array with the extended line of the center of the lower conical disk as the axis.

[0010] A further improvement of this utility model is that: the bottom end of the docking tube is movably inserted into the inner wall of the receiving tube, a rubber sealing ring is fixedly connected to the inner wall of the receiving tube, and the bottom end of the docking tube is movably inserted into the inner wall of the rubber sealing ring.

[0011] A further improvement of this utility model is that: a filter screen one is abutted against the top of the built-in mounting cylinder, a filter screen two is movably engaged with the inner wall of the built-in mounting cylinder, a permanent magnet ring two is fixedly connected to the bottom surface of the built-in mounting cylinder, a positioning bottom ring is fixedly connected to the inner wall of the direct-shot nozzle near the top, a permanent magnet ring one is fixedly connected to the upper surface of the positioning bottom ring, and the permanent magnet ring two and the permanent magnet ring one are magnetically repelled.

[0012] A further improvement of this utility model is that: the bottom surface of the lower conical disk is provided with an installation hole that corresponds to and matches the receiving bottom tube, and the top end of the receiving bottom tube is fixedly inserted into the inner wall of the installation hole.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: This utility model provides a detachable fertilizer nozzle assembly. Multiple nozzles are connected to the receiving base tube by threads. Disassembly and assembly only require rotation and no special tools are needed. The filter component built into the nozzle can automatically move upward after the nozzle is removed by means of the repulsive force of the permanent magnet ring, which makes it easy to quickly remove, clean or replace the filter screen, greatly reducing the difficulty of maintenance.

[0014] This utility model provides a detachable fertilizer nozzle assembly. Three different types of nozzles (direct, diffuse, and atomized) can be quickly switched by rotating the lower conical disc to adapt to different fertilizer forms and planting scenarios. There is no need to replace the entire nozzle, which improves the versatility of the equipment. When switching, the docking tube is automatically positioned by a reset spring, accompanied by a "click" sound prompt, to avoid errors caused by manual calibration.

[0015] This utility model provides a detachable fertilizer nozzle assembly. The bottom end of the connecting tube adopts a conical arc surface design. With the combined action of the return spring force and fertilizer pressure, the connecting tube is tightly inserted into the rubber sealing ring. At the same time, the piston ring achieves internal sealing, providing double protection to prevent fertilizer leakage and reduce waste and pollution. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of the rotary docking assembly of this utility model; Figure 3 This is a schematic diagram of the fastening rod structure of this utility model; Figure 4 This is a cross-sectional structural diagram of the fertilizer delivery pipe of this utility model. Figure 5 This is a schematic cross-sectional view of the receiving bottom pipe of this utility model; Figure 6 This is a cross-sectional view of the built-in mounting cylinder of this utility model.

[0017] In the diagram: 1. Fertilizer delivery pipe; 2. Fixing ring; 3. Rotary docking assembly; 4. Receiving bottom pipe; 5. Direct nozzle; 6. Scattering nozzle; 7. Atomizing nozzle; 8. Upper conical disc; 9. Lower conical disc; 10. Fastening rod; 11. Positioning shaft; 12. Fastening nut; 13. Docking hole; 14. Locking tooth; 15. Locking ring; 16. Mounting hole; 17. Docking tube; 18. Positioning ring; 19. Return spring; 20. Internal mounting cylinder; 21. Filter screen one; 22. Filter screen two; 23. Positioning bottom ring; 24. Permanent magnet ring one; 25. Permanent magnet ring two; 26. Rubber sealing ring. Detailed Implementation

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The present invention will be further described in detail below with reference to embodiments: Example 1, such as Figure 1 - Figure 6 As shown, this utility model provides a detachable fertilizer nozzle assembly, including a fertilizer delivery pipe 1 and a fixing ring 2 sleeved on the outer wall near the top of the fertilizer delivery pipe 1. A rotating docking assembly 3 is provided at the bottom end of the fertilizer delivery pipe 1. The rotating docking assembly 3 includes an upper conical disk 8 and a lower conical disk 9. Three sets of receiving bottom pipes 4 are fixedly connected to the bottom end of the lower conical disk 9. The bottom ends of the three sets of receiving bottom pipes 4 are respectively threaded with a direct spray nozzle 5, a scattering nozzle 6 and an atomizing nozzle 7. A filter assembly is provided on the inner wall near the top of the direct spray nozzle 5. The filter assembly includes an internal mounting cylinder 20.

[0020] The three sets of receiving base pipes 4 and below the conical disks 9 are arranged in a ring array along the center extension line.

[0021] The top of the built-in mounting cylinder 20 is abutted against a filter screen 21, the inner wall of the built-in mounting cylinder 20 is movably engaged with a filter screen 22, the bottom surface of the built-in mounting cylinder 20 is fixedly connected with a permanent magnet ring 25, the inner wall of the direct nozzle 5 near the top is fixedly connected with a positioning bottom ring 23, the upper surface of the positioning bottom ring 23 is fixedly connected with a permanent magnet ring 24, and the permanent magnet ring 25 and the permanent magnet ring 24 are magnetically repelled.

[0022] The bottom surface of the lower conical disk 9 is provided with mounting holes 16 that correspond to and are adapted to the receiving bottom tube 4, and the top end of the receiving bottom tube 4 is fixedly inserted into the inner wall of the mounting hole 16.

[0023] In this embodiment, after the direct-fire nozzle 5 is disassembled, the built-in mounting cylinder 20 moves upward under the repulsive force between the permanent magnet ring 24 on the upper surface of the positioning bottom ring 23 and the permanent magnet ring 25 on the bottom surface of the built-in mounting cylinder 20. By turning the direct-fire nozzle 5, the built-in mounting cylinder 20, filter screen 21, and filter screen 22 can be poured out for maintenance.

[0024] Example 2, as Figure 1 - Figure 6 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, a locking component is provided at the bottom of the inner wall of the upper conical disk 8. The locking component is used to lock the upper conical disk 8 and the lower conical disk 9, and the two can rotate relative to each other around the central extension line as an axis.

[0025] The locking assembly includes a positioning cylinder 11, which is fixedly connected to the bottom center of the upper conical disk 8. A fastening rod 10 is movably inserted into the inner wall of the positioning cylinder 11. The bottom end of the positioning cylinder 11 movably passes through the lower conical disk 9. A fastening nut 12 is threadedly connected to the bottom end of the fastening rod 10. A locking ring 15 adapted to the fastening rod 10 is fixedly connected to the bottom of the concave surface of the upper conical disk 8. A mating hole 13 adapted to the positioning cylinder 11 is opened at the bottom of the concave surface of the lower conical disk 9.

[0026] The outer wall of the fastening rod 10 near the top is fixedly connected with a locking tooth 14, and the inner wall of the locking ring 15 is provided with an auxiliary slot that matches the locking tooth 14. The outer wall of the locking tooth 14 is movably inserted into the inner wall of the auxiliary slot.

[0027] In this embodiment, when disassembling the rotating docking assembly 3, unscrew the fastening nut 12 to disengage it from the fastening rod 10, and pull down the lower conical disk 9 to separate it from the upper conical disk 8, thus completing the disassembly.

[0028] Example 3, as Figure 1 - Figure 6 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a positioning ring 18 is fixedly connected to the inner wall of the fertilizer conveying pipe 1, a docking tube 17 is movably connected to the inner wall of the positioning ring 18, a return spring 19 is fixedly connected to the outer wall of the docking tube 17 near the top, and the bottom end of the return spring 19 is fixedly connected to the upper surface of the positioning ring 18.

[0029] The bottom end of the docking tube 17 is movably inserted into the inner wall of the receiving tube 4. A rubber sealing ring 26 is fixedly connected to the inner wall of the receiving tube 4, and the bottom end of the docking tube 17 is movably inserted into the inner wall of the rubber sealing ring 26.

[0030] In this embodiment, the fertilizer pressure inside the fertilizer delivery pipe 1 acts on the piston ring at the top of the docking tube 17, which not only seals the area of ​​the return spring 19, but also pushes the bottom end of the docking tube 17 into the rubber sealing ring 26 inside the receiving tube 4, forming a tight seal. The fertilizer is then sprayed out from the target nozzle through the docking tube 17 and the receiving tube 4. Example

[0031] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, the fixing ring 2, the upper conical disk 8, the lower conical disk 9, and the locking components (positioning shaft cylinder 11, fastening rod 10, fastening nut 12, locking ring 15) are made of stainless steel.

[0032] Filter screen 1 (21) and filter screen 2 (22) are made of nylon, which is wear-resistant and easy to clean; permanent magnet ring 1 (24) and permanent magnet ring 2 (25) are made of neodymium iron boron permanent magnets to ensure stable repulsive force; rubber sealing ring 26 and piston ring are made of oil-resistant, acid- and alkali-resistant silicone material; return spring 19 is made of stainless steel spring steel, which is corrosion-resistant and has stable elasticity.

[0033] The fertilizer delivery pipe 1 is directly fixed on the upper conical plate 8, and the bottom conical arc surface of the connecting pipe 17 has a taper of 30°.

[0034] The upper conical disk 8 and the lower conical disk 9 are in an inclined state, and the extended center lines of both intersect the extended center line of the fertilizer conveying pipe 1.

[0035] The working principle of this detachable fertilizer nozzle assembly will be explained in detail below.

[0036] like Figure 1 - Figure 6 As shown, the component is first fixed to the outer wall near the top of the fertilizer delivery pipe 1 by the fixing ring 2 kit, thus completing the overall positioning of the component. The rotating docking component 3 is the core function switching unit, which consists of an upper conical disk 8 and a lower conical disk 9. The lower conical disk 9 is fixedly connected to three sets of ring-shaped array receiving pipes 4 through the bottom mounting holes 16. The bottom ends of the three sets of receiving pipes 4 are respectively threaded with direct spray nozzles 5, scattering nozzles 6, and atomizing nozzles 7, forming a multi-type spraying configuration.

[0037] The locking assembly enables rotatable locking of the upper conical disc 8 and the lower conical disc 9: the positioning shaft cylinder 11 is fixed to the bottom center of the upper conical disc 8, passes through the lower conical disc 9, and is inserted into the fastening rod 10, which is axially locked by the fastening nut 12; the locking tooth 14 at the top of the fastening rod 10 cooperates with the auxiliary slot on the inner wall of the locking ring 15 at the bottom of the concave surface of the upper conical disc 8 to ensure positioning stability during rotation. When changing the nozzle, the lower conical disc 9 is rotated around the center extension line of the fastening rod 10, and the receiving bottom tube 4 corresponding to the target nozzle presses against the bottom end of the docking tube 17 (conical arc surface structure), causing the docking tube 17 to move upward along the inner wall of the positioning ring 18 and compress the return spring 19; when the center of the target nozzle coincides with the center of the fertilizer delivery pipe 1, the docking tube 17 is inserted into the receiving bottom tube 4 under the elastic force of the return spring 19, and a "click" sound indicates that the docking is in place.

[0038] Fertilizer delivery stage: The fertilizer pressure inside the fertilizer delivery pipe 1 acts on the piston ring at the top of the docking tube 17, achieving both sealing of the area of ​​the return spring 19 and pushing the bottom end of the docking tube 17 into the rubber sealing ring 26 inside the receiving tube 4, forming a tight seal. The fertilizer is then sprayed out from the target nozzle through the docking tube 17 and the receiving tube 4. The filter assembly built into the direct-fire nozzle 5 filters impurities: filter screen one 21 abuts against the top of the built-in mounting cylinder 20, and filter screen two 22 is movably engaged with the inner wall of the built-in mounting cylinder 20, providing double filtration to intercept impurities.

[0039] During disassembly and maintenance: To disassemble the nozzles (direct nozzle 5, scattering nozzle 6, atomizing nozzle 7), simply rotate them to detach them from the receiving base tube 4. After disassembling the direct nozzle 5, the built-in mounting cylinder 20 moves upward under the repulsive force between the permanent magnet ring 24 on the upper surface of the positioning base ring 23 and the permanent magnet ring 25 on the bottom surface of the built-in mounting cylinder 20. Turning the direct nozzle 5 around allows the built-in mounting cylinder 20, filter screen 1 21, and filter screen 2 22 to be emptied for maintenance. When disassembling the rotating docking assembly 3, unscrew the fastening nut 12 to detach it from the fastening rod 10, and pull down the conical disc 9 to separate it from the upper conical disc 8, completing the disassembly.

[0040] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A detachable fertilizer nozzle assembly, comprising a fertilizer delivery pipe (1) and a fixing ring (2) sleeved on the outer wall near the top of the fertilizer delivery pipe (1), characterized in that: The bottom end of the fertilizer delivery pipe (1) is provided with a rotating docking assembly (3). The rotating docking assembly (3) includes an upper conical disk (8) and a lower conical disk (9). The bottom end of the lower conical disk (9) is fixedly connected to three sets of receiving bottom pipes (4). The bottom ends of the three sets of receiving bottom pipes (4) are respectively threaded with a direct nozzle (5), a scattering nozzle (6) and an atomizing nozzle (7). The inner wall of the direct nozzle (5) near the top is provided with a filter assembly. The filter assembly includes an internal mounting cylinder (20). A locking component is provided at the bottom of the inner wall of the upper conical disk (8). The locking component is used to lock the upper conical disk (8) and the lower conical disk (9), and the two can rotate relative to each other about the central extension line as an axis. The inner wall of the fertilizer delivery pipe (1) is fixedly connected to a positioning ring (18), and the inner wall of the positioning ring (18) is movably connected to a docking tube (17). The outer wall of the docking tube (17) near the top is fixedly connected to a return spring (19), and the bottom end of the return spring (19) is fixedly connected to the upper surface of the positioning ring (18).

2. The detachable fertilizer nozzle assembly according to claim 1, characterized in that: The locking assembly includes a positioning cylinder (11), which is fixedly connected to the bottom center of the upper conical disc (8). A fastening rod (10) is movably inserted into the inner wall of the positioning cylinder (11). The bottom end of the positioning cylinder (11) movably passes through the lower conical disc (9). A fastening nut (12) is threadedly connected to the bottom end of the fastening rod (10). A locking ring (15) that matches the fastening rod (10) is fixedly connected to the bottom of the concave surface of the upper conical disc (8). A mating hole (13) that matches the positioning cylinder (11) is opened at the bottom of the concave surface of the lower conical disc (9).

3. A detachable fertilizer nozzle assembly according to claim 2, characterized in that: The fastening rod (10) has a locking tooth (14) fixedly connected to the outer wall near the top. The inner wall of the locking ring (15) has an auxiliary slot that matches the locking tooth (14). The outer wall of the locking tooth (14) is movably inserted into the inner wall of the auxiliary slot.

4. The detachable fertilizer nozzle assembly according to claim 1, characterized in that: The three sets of receiving bottom pipes (4) are arranged in a ring array with the extension line of the center of the lower conical disk (9) as the axis.

5. A detachable fertilizer nozzle assembly according to claim 1, characterized in that: The bottom end of the docking tube (17) is movably inserted into the inner wall of the receiving tube (4). A rubber sealing ring (26) is fixedly connected to the inner wall of the receiving tube (4). The bottom end of the docking tube (17) is movably inserted into the inner wall of the rubber sealing ring (26).

6. A detachable fertilizer nozzle assembly according to claim 1, characterized in that: The top of the built-in mounting cylinder (20) is abutted by a filter screen (21), the inner wall of the built-in mounting cylinder (20) is movably snapped with a filter screen (22), the bottom surface of the built-in mounting cylinder (20) is fixedly connected with a permanent magnet ring (25), the inner wall of the direct nozzle (5) near the top is fixedly connected with a positioning bottom ring (23), the upper surface of the positioning bottom ring (23) is fixedly connected with a permanent magnet ring (24), and the permanent magnet ring (25) and the permanent magnet ring (24) are magnetically repulsive.

7. A detachable fertilizer nozzle assembly according to claim 1, characterized in that: The bottom surface of the lower conical disc (9) is provided with an installation hole (16) that corresponds to and matches the receiving bottom tube (4), and the top end of the receiving bottom tube (4) is fixedly inserted into the inner wall of the installation hole (16).

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