Fertilizing device
By incorporating an adjustable control plate and spray nozzles into the fertilization device, the problem of existing devices being unable to adjust the amount of fertilizer has been solved, enabling precise fertilization based on the plant's growth cycle and location, thereby improving plant quality and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO SICHUAN IND CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-24
AI Technical Summary
Existing fertilization devices cannot adjust the amount of fertilizer according to the plant's growth cycle and the location of fertilization, resulting in too much or too little fertilizer being sprayed, which affects the quality and yield of the plants.
A fertilizer application device was designed. By setting an adjustable adjustment disc and spray holes inside the nozzle housing, the overlapping area of the second spray hole and the first spray hole is changed by rotating the adjustment disc, thereby adjusting the amount of fertilizer sprayed and achieving precise control.
It enables precise adjustment of fertilizer application based on plant growth cycle and fertilization location, thereby improving plant quality and yield.
Smart Images
Figure CN224538819U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fertilizer application equipment technology, and in particular to a fertilizer application device. Background Technology
[0002] With the development of plant cultivation technology, fertilization can promote plant growth and is therefore widely used in plant cultivation. To improve fertilization efficiency, fertilization devices are now commonly used. These devices typically store fertilizer in large containers, and operators carry the containers on their backs, allowing them to fertilize a larger number of plants at once. This reduces the number of trips between the plant site and the fertilizer storage area, thus improving efficiency.
[0003] In related technologies, fertilization devices typically include a storage tank, a spray pipe, and a nozzle. The fertilizer stored in the storage tank flows through the spray pipe to the nozzle and is sprayed out. The fertilization operator aims the nozzle at the plant that needs fertilization, and the fertilizer is sprayed onto the plant surface.
[0004] However, because some plants, such as tobacco, have different nutrient absorption capacities at different growth stages, the required fertilization amounts vary at these stages. Furthermore, different plant parts (e.g., leaves, roots, and stems) also have varying nutrient absorption capacities. Therefore, the amount of fertilizer applied needs to be adjusted according to the plant's growth cycle and the location of application. The aforementioned fertilization device, with its fixed nozzle and spray pipe structure, provides a fixed amount of fertilizer and cannot adjust the amount based on the plant's growth cycle and the location of application. This results in either too much or too little fertilizer being applied, preventing the plant from effectively absorbing nutrients to achieve better quality and yield. Utility Model Content
[0005] Therefore, it is necessary to provide a fertilization device to address the problem of the inability to adjust the amount of fertilizer applied.
[0006] A fertilizer application device comprising:
[0007] Storage bins;
[0008] The discharge pipe is connected at one end to the side wall of the storage box and communicates with the interior of the storage box;
[0009] The nozzle housing is connected to the other end of the discharge pipe and communicates with the interior of the storage tank through the discharge pipe. The nozzle housing has multiple first spray holes.
[0010] An adjustment disc is located inside the nozzle housing and is rotatably connected to the nozzle housing. The adjustment disc has multiple second spray holes. The adjustment disc can rotate relative to the nozzle housing so that the second spray holes are opposite to or offset from the first spray holes.
[0011] In some embodiments, the fertilization device further includes a rotating mechanism rotatably connected to the nozzle housing and connected to the adjusting disc. The rotating mechanism is used to drive the adjusting disc to rotate relative to the nozzle housing when it rotates relative to the nozzle housing.
[0012] In some embodiments, the rotating mechanism includes a turntable, a rubber pad, and a connecting rod. One end of the connecting rod is connected to the adjusting disc, and the other end of the connecting rod is connected to the turntable. The rubber pad is sleeved on the outer periphery of the connecting rod, and the connecting rod is rotatably connected to the nozzle housing through the rubber pad.
[0013] In some embodiments, the nozzle housing has a limiting groove on the side where the first spray hole is located, and the middle part of the adjusting plate has a positioning member that moves with the adjusting plate, and the positioning member is engaged in the limiting groove.
[0014] In some embodiments, the nozzle housing further includes a spray plate, which is disposed one-to-one with the first spray hole, and the spray plate has a plurality of spray holes penetrating the spray plate.
[0015] In some embodiments, the discharge pipe includes a connected hose and a telescopic pipe, with one end of the hose away from the telescopic pipe connected to the storage tank and the other end of the telescopic pipe away from the hose connected to the nozzle housing.
[0016] In some embodiments, the telescopic tube includes a sleeve and a sliding tube. One end of the sleeve is connected to the hose and is fitted around the outer periphery of the sliding tube. The sliding tube is movable along the length of the sleeve, and the end of the sliding tube away from the hose is connected to the nozzle housing.
[0017] In some embodiments, the telescopic tube further includes a limiting mechanism that is movably connected to the sleeve, allowing the limiting mechanism to move closer to or further away from the sliding tube. When the limiting mechanism contacts the sliding tube, the relative position of the sliding tube and the sleeve is fixed.
[0018] In some embodiments, a limiting hole is formed on the surface of the sliding tube; the limiting mechanism includes a fixed block, a rotating member, a pin, and a spring. The fixed block is connected to the outer wall of the end of the sleeve, the middle part of the rotating member is rotatably connected to the fixed block, the spring is connected to one end of the rotating member and rotates with the rotating member, and the spring is located between the rotating member and the outer wall of the sleeve; the pin is connected to the other end of the rotating member, the pin rotates with the rotating member and is inserted into the limiting hole, and when the pin is inserted into the limiting hole, the relative position of the sliding tube and the sleeve is fixed.
[0019] In some embodiments, the telescopic tube further includes a sealing ring disposed at one end of the sliding tube near the sleeve and moving with the sliding tube; the outer wall of the sealing ring is in contact with the inner wall of the sleeve.
[0020] The aforementioned fertilization device stores fertilizer in a storage tank. The fertilizer in the storage tank flows through a discharge pipe into the nozzle housing. The fertilizer in the nozzle housing must pass through the second spray nozzle and then the first spray nozzle in sequence before being sprayed out of the nozzle housing. Normally, the second spray nozzle is positioned opposite the first spray nozzle, with the first and second spray nozzles completely overlapping, maximizing the fertilizer output. Rotating the adjusting disc shifts the second and first spray nozzles, reducing their overlapping area and thus decreasing the amount of fertilizer that can pass through them. By adjusting the rotation angle of the adjusting disc, the fertilizer output can be easily adjusted, allowing for precise control of the fertilizer application based on the plant's growth cycle and the location of fertilization, effectively improving plant quality and yield. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of one embodiment of a fertilization device according to this application.
[0022] Figure 2 This is a schematic diagram of the internal structure of the nozzle housing in one embodiment of a fertilizer applicator according to this application.
[0023] Figure 3 This is a disassembled structural diagram of the connection between the nozzle housing and the regulating disc in one embodiment of a fertilization device according to this application.
[0024] Figure 4 This is a cross-sectional view of the telescopic tube and a structural schematic diagram of the connection between the telescopic tube and the nozzle housing, representing one embodiment of a fertilization device according to this application.
[0025] Figure 5 For this Figure 4 Enlarged view of point A in the middle.
[0026] In the diagram, 100 is the storage bin; 200 is the discharge pipe; 210 is the hose; 220 is the telescopic pipe; 221 is the sleeve; 222 is the sliding pipe; 2221 is the limiting hole; 223 is the sealing ring; 230 is the handheld pipe; 300 is the nozzle housing; 310 is the first spray hole; 320 is the limiting groove; 330 is the spray plate; 331 is the spray hole; 400 is the adjusting plate; 410 is the second spray hole; 420 is the positioning component; 500 is the rotating mechanism; 510 is the turntable; 520 is the rubber pad; 530 is the connecting rod; 600 is the limiting mechanism; 610 is the fixing block; 620 is the rotating component; 630 is the pin; and 640 is the spring. Detailed Implementation
[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms 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 of this application.
[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0033] See Figure 1 and Figure 2 , Figure 1 A schematic diagram of the overall structure of the fertilization device according to one embodiment of this application is shown. Figure 2 This is a schematic diagram of the internal structure of the fertilizer applicator corresponding to the nozzle housing in one embodiment of this application. One embodiment of this application provides a fertilizer applicator including a storage tank 100, a discharge pipe 200, a nozzle housing 300, and an adjusting disc 400. One end of the discharge pipe 200 is connected to the side wall of the storage tank 100 and communicates with the interior of the storage tank 100; the nozzle housing 300 is connected to the other end of the discharge pipe 200 and communicates with the interior of the storage tank 100 through the discharge pipe 200. The nozzle housing 300 has a plurality of first spray holes 310; understandably, the side of the nozzle housing 300 with the first spray holes 310 can be considered the spraying side, that is, the spraying side of the nozzle housing 300 has a plurality of first spray holes 310. During the spraying operation, if the spray is directed towards the bottom surface, the spraying side of the nozzle housing 300 is the side closer to the bottom surface. In this case, the spraying side of the nozzle housing 300 can be considered the bottom of the nozzle housing 300, and thus, the bottom of the nozzle housing 300 can be considered to have multiple first spray holes 310. Since the spraying side of the nozzle housing 300 can be directed towards the area of the crop to be sprayed according to actual spraying needs during the use of the fertilization device, the location of the first spray holes 310 on the nozzle housing 300 is not limited in this embodiment; it only needs to meet the needs of the spraying operation and subsequent adjustment of the spray volume.
[0034] An adjusting plate 400 is located inside the nozzle housing 300 and is rotatably connected to the nozzle housing 300. The adjusting plate 400 has a plurality of second spray holes 410. The adjusting plate 400 can rotate relative to the nozzle housing 300 so that the second spray holes 410 are opposite to or offset from the first spray holes 310.
[0035] like Figure 1 and Figure 2 As shown, preferably, the storage bin 100 is used to store fertilizer, and the discharge pipe 200 is connected to the right side wall of the storage bin 100. The fertilizer stored in the storage bin 100 flows into the nozzle housing 300 through the discharge pipe 200. The fertilizer in the nozzle housing 300 must pass through the second spray hole 410 and the first spray hole 310 in sequence before it can flow out of the nozzle housing 300. That is, the fertilizer in the nozzle housing 300 can only flow out of the nozzle housing 300 through the overlapping part of the second spray hole 410 and the first spray hole 310 to achieve spraying. The adjusting disc 400 can rotate relative to the nozzle housing 300. When the first spray hole 310 and the second spray hole 410 are opposite each other, the fertilizer in the nozzle housing 300 flows out of the nozzle housing 300 through the second spray hole 410 and the first spray hole 310 to achieve spraying. When the first spray hole 310 and the second spray hole 410 are completely misaligned (i.e. the first spray hole 310 does not coincide with the second spray hole 410), the fertilizer in the nozzle housing 300 cannot flow out to achieve spraying. By adjusting the rotation angle of the adjusting disc 400, the overlapping area of the second spray hole 410 and the first spray hole 310 can be changed, thereby changing the flow rate of the sprayed fertilizer.
[0036] In use, the operator moves the storage box 100 while holding the discharge pipe 200 and moving the nozzle housing 300 to the designated fertilization location (such as leaves, roots, stems, etc.). The operator adjusts the adjustment disc 400 according to the fertilizer absorption rate and growth cycle based on the spray location, thereby adjusting the overlap area of the first spray hole 310 and the second spray hole 410 to precisely control the spray volume and avoid over-spraying fertilizer that could affect crop growth. After adjustment, the side of the nozzle housing 300 with the first spray hole 310 is facing the crop to complete the fertilization process.
[0037] With the above settings, the overlapping area of the second spray hole 410 and the first spray hole 310 can be adjusted by changing the rotation angle of the adjusting disc 400, thereby controlling the flow rate of the sprayed fertilizer. Users can adjust the rotation angle of the adjusting disc 400 to control the amount of fertilizer sprayed according to the crop's growth cycle and the fertilization location, avoiding over- or under-fertilization and effectively improving plant quality and yield.
[0038] It should be noted that when the second spray hole 410 completely overlaps with the first spray hole 310, the overlapping area is the largest, resulting in the highest fertilizer flow rate. Conversely, when the second spray hole 410 and the first spray hole 310 are completely misaligned (i.e., they do not overlap), the adjusting disc 400 blocks the first spray hole 310, preventing fertilizer from flowing out of the nozzle housing 300, resulting in no flow. Additionally, a water pump can be installed inside the storage tank 100 to push the fertilizer from the storage tank 100 to the discharge pipe 200 and the nozzle housing 300, effectively improving fertilization efficiency. Users can adjust the adjusting disc 400 during fertilization to adjust the spray volume.
[0039] In addition, such as Figure 1 As shown, the surface of the storage box 100 can be provided with a handle or a strap, which allows the user to move the storage box 100 by means of the handle or the strap, making it more convenient to use.
[0040] In some embodiments, the fertilization device further includes a rotating mechanism 500, which is rotatably connected to the nozzle housing 300 and connected to the adjusting plate 400. The rotating mechanism 500 is used to drive the adjusting plate 400 to rotate relative to the nozzle housing 300 when rotating relative to the nozzle housing 300.
[0041] like Figure 2 As shown, preferably, the rotating mechanism 500 is rotatably connected to the nozzle housing 300. The rotating mechanism 500 can rotate relative to the nozzle housing 300 by electric drive or manual drive, thereby driving the adjusting disc 400 to rotate. By setting the rotating mechanism 500, it is easy to control the rotation of the adjusting disc 400 located inside the nozzle housing 300, so as to ensure that the purpose of adjusting the fertilizer spraying volume can be achieved.
[0042] In some embodiments, the rotating mechanism 500 includes a turntable 510, a rubber pad 520, and a connecting rod 530. One end of the connecting rod 530 is connected to the adjusting plate 400, and the other end of the connecting rod 530 is connected to the turntable 510. The rubber pad 520 is sleeved on the outer periphery of the connecting rod 530, and the connecting rod 530 is rotatably connected to the nozzle housing 300 through the rubber pad 520.
[0043] like Figure 2As shown, preferably, one end of the connecting rod 530 is connected to the center of the adjusting disc 400, and the other end of the connecting rod 530 extends to the outside of the nozzle housing 300. The turntable 510 is connected to the other end of the connecting rod 530, meaning the turntable 510 is located outside the nozzle housing 300. A rubber pad 520 is disposed between the connecting rod 530 and the nozzle housing 300, and the connecting rod 530 can drive the rubber pad 520 to rotate relative to the nozzle housing 300. There is friction between the rubber pad 520 and the nozzle housing 300, and this friction must be overcome to allow the connecting rod 530 and the adjusting disc 400 to rotate. By setting the rubber pad 520, the adjusting disc 400 is less likely to deviate relative to the nozzle housing 300, preventing the adjusting disc 400 from shaking when it is adjusted to the correct position and fertilizer spraying begins, thus ensuring a stable fertilizer flow rate during spraying.
[0044] It should be noted that the turntable 510 can be electrically driven or manually driven; in this embodiment, it is manually driven for adjustment. Specifically, the operator holds the discharge pipe 200 with one hand and rotates the turntable 510 with the other to adjust the fertilizer spraying volume, making the operation simple and convenient. The turntable 510's external location on the nozzle housing 300 avoids occupying internal space, thus increasing the fertilizer storage capacity within the nozzle housing 300 to some extent. Furthermore, its external location facilitates manual operation or connection to an electrically driven structure.
[0045] In some embodiments, the nozzle housing 300 has a limiting groove 320 on the side where the first spray hole 310 is provided, and the middle part of the adjustment plate 400 is provided with a positioning member 420 that moves with the adjustment plate 400. The positioning member 420 is engaged in the limiting groove 320.
[0046] like Figure 3As shown, preferably, the limiting groove 320 consists of two identical sector-shaped grooves, which share a common center and are arranged opposite to each other. The positioning member 420 has an elongated structure and is engaged within the limiting groove 320. When the adjusting disk 400 rotates, the positioning member 420 rotates around the center of the sector-shaped groove. When the positioning member 420 abuts against the edge of the sector-shaped groove, the edge of the limiting groove 320 restricts the movement of the positioning member 420, meaning that the positioning member 420 can only move within the range of the limiting groove 320, allowing the adjusting disk 400 to rotate only by a certain angle. For example, if the center angle of the sector-shaped groove is 40°, then the rotatable angle range of the positioning member 420 is 40°, which also means that the rotatable angle range of the adjusting disk 400 is 40°. By setting the limiting groove 320 and the positioning element 420, the adjustment plate 400 can be limited to rotate within a specific range, preventing the adjustment plate 400 from rotating too much and causing the second spray hole 410 to deviate too far from its corresponding first spray hole 310, thus preventing it from quickly returning to its original position. The above settings can improve the efficiency of adjusting the adjustment plate 400.
[0047] Furthermore, the two ends of the positioning member 420 abut against the arcuate sidewalls of the two sector-shaped grooves, and the ends of the positioning member 420 are slidably connected to the arcuate sidewalls of the two sector-shaped grooves to ensure that the positioning member 420 does not shift. Even further, rollers or other structures are provided at both ends of the positioning member 420 to make the rotation of the adjusting disc 400 smoother.
[0048] In some embodiments, the nozzle housing 300 further includes a spray plate 330, which is disposed in a one-to-one correspondence with the first spray hole 310, and the spray plate 330 has a plurality of spray holes 331 that penetrate the spray plate 330.
[0049] like Figure 2 and Figure 3 As shown, preferably, the spray plate 330 is placed inside the first spray hole 310, and the fertilizer inside the nozzle housing 300 is sprayed through the second spray hole 410 and the spray hole 331. The spray hole 331 is a fine hole with a small aperture. Each spray plate 330 has multiple spray holes 331, so that the fertilizer forms multiple fine liquid columns, making the fertilizer spraying more uniform and improving the fertilization effect.
[0050] In some embodiments, the discharge pipe 200 includes a hose 210 and a telescopic pipe 220 connected together. The end of the hose 210 away from the telescopic pipe 220 is connected to the storage tank 100, and the end of the telescopic pipe 220 away from the hose 210 is connected to the nozzle housing 300.
[0051] like Figure 1As shown, preferably, the flexible hose 210 is bendable to allow the user to adjust the direction of the discharge pipe 200; the telescopic pipe 220 is extendable along its own length, thereby changing the length of the discharge pipe 200 to better correspond to the position of the sprayed fertilizer. With the above configuration, the user can adjust the direction and length of the discharge pipe 200 during fertilization, allowing for convenient spraying of crops at different locations and heights without bending or turning, and also enabling fertilization of crops farther from the user, thus improving the convenience of fertilization.
[0052] In some embodiments, the telescopic tube 220 includes a sleeve 221 and a sliding tube 222. One end of the sleeve 221 is connected to the hose 210 and is sleeved on the outer periphery of the sliding tube 222. The sliding tube 222 can move along the length of the sleeve 221. The end of the sliding tube 222 away from the hose 210 is connected to the nozzle housing 300.
[0053] like Figure 1 As shown in Figure 4, preferably, the sleeve 221 is fitted around the outer periphery of the sliding tube 222. The sliding tube 222 moves along the length of the sleeve 221 to achieve a telescopic function. The nozzle housing 300 moves with the sliding tube 222 to adapt to the required fertilization height and the distance of the crop to be fertilized. By setting the sleeve 221 and the sliding tube 222, the length of the telescopic tube 220 can be adjusted to adjust the position of the nozzle housing 300, improving the convenience of fertilization.
[0054] In some embodiments, the telescopic tube 220 further includes a limiting mechanism 600, which is movably connected to the sleeve 221, allowing the limiting mechanism 600 to approach or move away from the sliding tube 222. When the limiting mechanism 600 contacts the sliding tube 222, the relative position of the sliding tube 222 and the sleeve 221 is fixed.
[0055] like Figure 4 and Figure 5 As shown, preferably, the limiting mechanism 600 can be rotatably or slidably connected to the sleeve 221, allowing part or all of the structure of the limiting mechanism 600 to approach or move away from the sliding tube 222. When the limiting mechanism 600 approaches the sliding tube 222, part or all of the structure of the limiting mechanism 600 abuts or engages with the sliding tube 222, preventing the sliding tube 222 from moving relative to the sleeve 221, thus fixing the length of the telescopic tube 220. When part or all of the structure of the limiting mechanism 600 moves away from the sliding tube 222, the sliding tube 222 is not limited and can move along the length direction of the sleeve 221. Through the above settings, the sliding tube 222 can be locked after adjustment to prevent it from sliding off course. Furthermore, the limiting mechanism 600 can lock or unlock the sliding tube 222 according to the actual situation, making the operation simple and quick.
[0056] In some embodiments, a limiting hole 2221 is formed on the surface of the sliding tube 222; the limiting mechanism 600 includes a fixed block 610, a rotating member 620, a pin 630 and a spring 640. The fixed block 610 is connected to the outer wall of the end of the sleeve 221. The middle part of the rotating member 620 is rotatably connected to the fixed block 610. The spring 640 is connected to one end of the rotating member 620 and rotates with the rotating member 620. The spring 640 is located between the rotating member 620 and the outer wall of the sleeve 221. The pin 630 is connected to the other end of the rotating member 620. The pin 630 rotates with the rotating member 620 and is inserted into the limiting hole 2221. When the pin 630 is inserted into the limiting hole 2221, the relative position of the sliding tube 222 and the sleeve 221 is fixed.
[0057] like Figure 4 and Figure 5 As shown, preferably, multiple limiting holes 2221 are spaced apart along the length of the sliding tube 222 on the outer wall of the sliding tube 222. Two fixing blocks 610 are provided, and the two fixing blocks 610 are connected side by side to the outer wall of the sleeve 221. The rotating member 620 is a plate-shaped structure and is located between the two fixing blocks 610. Its two sides are rotatably connected to the two fixing blocks 610 through rotating shafts, so that the rotating member 620 can rotate around the rotating shaft (i.e., the rotatably connected position). During the rotation of the rotating member 620, one end can abut against the outer wall of the sleeve 221, and the other end can abut against the outer wall of the sliding tube 222. The spring 640 is connected to the end of the rotating member 620 that can abut against the outer wall of the sleeve 221, and the pin 630 is connected to the end of the rotating member 620 that can abut against the sliding tube 222.
[0058] like Figure 5 As shown, the lower end of the spring 640 always abuts against the outer wall of the sleeve 221, causing the pin 630 to be inserted into the corresponding limiting hole 2221, thereby restricting the movement of the sliding tube 222 and fixing the length of the telescopic tube 220. When it is necessary to move the sliding tube 222, the user presses the end of the rotating part 620 connected to the spring 640, compressing the spring 640 and causing the rotating part 620 to rotate counterclockwise. The pin 630 moves away from the sliding tube 222 and out of the limiting hole 2221. At this time, the sliding tube 222 can move along the length direction of the sleeve 221. After the sliding tube 222 is adjusted, the user stops pressing the rotating part 620, the spring 640 rebounds, causing the rotating part 620 to rotate clockwise, and the pin 630 is inserted into the corresponding limiting hole 2221, re-limiting the sliding tube 222, thus completing the length adjustment of the telescopic tube 220. With the above settings, the length of the telescopic tube 220 can be adjusted simply and quickly, facilitating operation.
[0059] In some embodiments, the telescopic tube 220 further includes a sealing ring 223, which is disposed at one end of the sliding tube 222 near the sleeve 221 and moves with the sliding tube 222; the outer wall of the sealing ring 223 is in contact with the inner wall of the sleeve 221.
[0060] like Figure 4 As shown, preferably, the sealing ring 223 is located at one end of the sliding tube 222 inside the sleeve 221 and moves with the sliding tube 222. The outer wall of the sealing ring 223 fits against the inner wall of the sleeve 221, preventing fertilizer entering the sleeve 221 from entering the gap between the outer wall of the sliding tube 222 and the inner wall of the sleeve 221. This ensures that all fertilizer in the sleeve 221 enters the sliding tube 222 and then the nozzle housing 300. Furthermore, as the sealing ring 223 moves with the sliding tube 222, it can scrape off fertilizer adhering to the inner wall of the sleeve 221, reducing fertilizer residue in the sleeve 221 and improving the cleaning effect.
[0061] In addition, such as Figure 1 As shown, the discharge pipe 200 also includes a handheld pipe 230, which is located between the flexible hose 210 and the telescopic pipe 220. The flexible hose 210 is connected to the telescopic pipe 220 through the handheld pipe 230. The surface of the handheld pipe 230 is provided with protrusions to increase the friction for gripping, making it easier for the user to hold.
[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A fertilizer applicator, characterized in that, include: Storage bins; The discharge pipe is connected at one end to the side wall of the storage box and communicates with the interior of the storage box; The nozzle housing is connected to the other end of the discharge pipe and communicates with the interior of the storage tank through the discharge pipe. The nozzle housing has multiple first spray holes. An adjustment disc is located inside the nozzle housing and is rotatably connected to the nozzle housing. The adjustment disc has multiple second spray holes. The adjustment disc can rotate relative to the nozzle housing so that the second spray holes are opposite to or offset from the first spray holes.
2. The fertilization device according to claim 1, characterized in that, It also includes a rotating mechanism, which is rotatably connected to the nozzle housing and connected to the adjusting plate. The rotating mechanism is used to drive the adjusting plate to rotate relative to the nozzle housing when it rotates relative to the nozzle housing.
3. The fertilization device according to claim 2, characterized in that, The rotating mechanism includes a turntable, a rubber pad, and a connecting rod. One end of the connecting rod is connected to the adjusting disc, and the other end of the connecting rod is connected to the turntable. The rubber pad is sleeved on the outer periphery of the connecting rod, and the connecting rod is rotatably connected to the nozzle housing through the rubber pad.
4. The fertilization device according to claim 1, characterized in that, The nozzle housing has a limiting groove on the side where the first spray hole is located, and the middle part of the adjustment plate has a positioning member that moves with the adjustment plate. The positioning member is engaged in the limiting groove.
5. The fertilization device according to claim 1, characterized in that, The nozzle housing also includes a spray plate, which is disposed in the first spray hole in a corresponding manner. The spray plate has a plurality of spray holes that penetrate through the spray plate.
6. The fertilization device according to claim 1, characterized in that, The discharge pipe includes a flexible hose and a telescopic pipe connected together. The end of the flexible hose away from the telescopic pipe is connected to the storage tank, and the end of the telescopic pipe away from the flexible hose is connected to the nozzle housing.
7. The fertilizer applicator according to claim 6, characterized in that, The telescopic tube includes a sleeve and a sliding tube. One end of the sleeve is connected to the hose and is fitted around the outer periphery of the sliding tube. The sliding tube can move along the length of the sleeve. The end of the sliding tube away from the hose is connected to the nozzle housing.
8. The fertilizer applicator according to claim 7, characterized in that, The telescopic tube also includes a limiting mechanism, which is movably connected to the sleeve, allowing the limiting mechanism to move closer to or further away from the sliding tube. When the limiting mechanism contacts the sliding tube, the relative position of the sliding tube and the sleeve is fixed.
9. The fertilization device according to claim 8, characterized in that, The sliding tube has a limiting hole on its surface; the limiting mechanism includes a fixed block, a rotating component, a pin, and a spring. The fixed block is connected to the outer wall of the end of the sleeve. The middle part of the rotating component is rotatably connected to the fixed block. The spring is connected to one end of the rotating component and rotates with the rotating component. The spring is located between the rotating component and the outer wall of the sleeve. The pin is connected to the other end of the rotating component. The pin rotates with the rotating component and is inserted into the limiting hole. When the pin is inserted into the limiting hole, the relative position of the sliding tube and the sleeve is fixed.
10. The fertilization device according to claim 7, characterized in that, The telescopic tube also includes a sealing ring, which is located at one end of the sliding tube near the sleeve and moves with the sliding tube; the outer wall of the sealing ring is in contact with the inner wall of the sleeve.