A multifunctional seedling fertilizer metering device
By introducing a depth limiting plate and an anti-blocking rod into the seedling fertilizer metering device, the problems of fixed insertion depth and outlet blockage are solved, enabling flexible adjustment of fertilization depth and preventing blockage, thus improving the effectiveness of the fertilization equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 西安市雁塔区城市管理服务中心
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-31
AI Technical Summary
The existing seedling fertilizer metering device has a fixed baffle position for insertion depth, making it impossible to adjust the fertilization depth. Furthermore, the lower outlet is easily blocked by soil, preventing the fertilizer from being discharged properly.
A multifunctional seedling fertilizer metering device was designed, which includes a depth limiting plate and a push anti-blocking rod. The depth limiting plate can adjust the insertion depth, and the push anti-blocking rod keeps the outlet closed by a cylindrical spring to prevent blockage.
It enables the adjustment of fertilization depth according to the condition of seedlings and prevents the lower outlet from being blocked by soil, ensuring normal fertilizer discharge and improving fertilization efficiency.
Smart Images

Figure CN224571823U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of seedling fertilization technology, and in particular relates to a multifunctional seedling fertilization meter. Background Technology
[0002] Fertilizer application is a key technology in landscaping and nursery cultivation. It refers to the process of applying fertilizer to the root zone in a scientific ratio according to the growth needs of seedlings to supplement nutrients and promote healthy growth. The seedling fertilizer metering device is a special fertilization device designed for landscaping and nursery scenarios. Its core function is to accurately control the amount of fertilizer applied, avoiding waste or fertilizer damage caused by traditional fertilization.
[0003] Based on the above, the inventors have discovered the following shortcomings in existing seedling fertilizer metering devices: 1. The position of the baffle for the insertion depth is fixed, making it impossible to adjust the fertilization depth according to the condition of the fertilized seedlings. It is inconvenient to install an adjustable depth baffle on the fertilizer metering device to adjust the insertion depth. 2. The lower outlet is easily blocked by soil, preventing the internal fertilizer from being discharged for normal fertilization. It is inconvenient to install push-out anti-blocking measures on the fertilizer metering device to seal and protect the lower outlet. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model provides a multifunctional seedling fertilizer metering device. This solves the problems of existing devices where the insertion depth baffle is fixed in position, making it impossible to adjust the fertilization depth according to the seedling conditions; it is inconvenient to add an adjustable depth baffle to the fertilizer metering device to allow for depth adjustment; the lower outlet is easily blocked by soil, preventing the internal fertilizer from being discharged for normal fertilization; and it is inconvenient to add a push-out anti-blocking measure to the fertilizer metering device to seal and protect the lower outlet.
[0005] The purpose and effectiveness of this multifunctional seedling fertilizer metering device are achieved through the following specific technical means: A multifunctional seedling fertilizer metering device includes a metering device body; the metering device body is provided with a metering fertilizer cylinder, a semi-circular head plate with a through-hole is provided on the upper left side of the metering fertilizer cylinder, a closed plate with a through-hole is provided on the top end face of the metering fertilizer cylinder, a depth limiting plate is fitted around the lower outer circumference of the metering fertilizer cylinder, a sleeve in the vertical direction is provided on the left side of the depth limiting plate, a semi-circular head plate with a through-hole is provided in the middle of the left side of the sleeve of the depth limiting plate, a foot pedal with a semi-circular head is provided at the bottom right side of the sleeve of the depth limiting plate, and a triangular block is provided on the top left side of the foot pedal of the depth limiting plate.
[0006] Furthermore, a cylindrical spring is fitted around the outer circumference of the upper end of the push anti-blocking rod, and a corrosion-resistant layer is provided on the surface of the cylindrical spring.
[0007] Furthermore, a push force rod is threadedly installed on the threaded post of the push anti-blocking rod, and a semi-cylinder in the vertical direction is provided on the left end face of the push force rod, and a threaded blind hole is opened at the bottom of the left end of the push force rod.
[0008] Furthermore, a push anti-blocking rod is inserted into the closed plate of the quantitative fertilizer cylinder. A sealing column is provided at the lower end of the push anti-blocking rod. A conical head is provided at the bottom of the sealing column of the push anti-blocking rod. A frustum is provided at the top of the sealing column of the push anti-blocking rod. A limit ring plate is provided on the outer circumference of the upper end of the push anti-blocking rod. A threaded column is provided on the top end face of the push anti-blocking rod.
[0009] Furthermore, a ground-inserting gripping rod is installed inside the assembly screw hole of the quantitative fertilizer applicator. The inner end face of the ground-inserting gripping rod is provided with a threaded post, and the outer end face of the ground-inserting gripping rod is provided with a regular hexagonal groove.
[0010] Furthermore, a depth adjustment rod is threadedly installed on the semi-circular head plate of the quantitative fertilizer applicator. The outer circumference of the depth adjustment rod is threaded, a handle is provided at the upper end of the depth adjustment rod, and a fixing post is provided at the lower end face of the depth adjustment rod. The fixing post of the depth adjustment rod is installed on the semi-circular head plate of the depth limiting plate through a bearing.
[0011] Furthermore, a conical surface is provided on the outer circumference of the lower end of the quantitative fertilizer cylinder, a feed screw hole is provided on the right side wall of the upper end of the quantitative fertilizer cylinder, assembly screw holes are provided on both the front and rear walls of the upper end of the quantitative fertilizer cylinder, and a force-bearing rod is provided on the right side of the upper end of the quantitative fertilizer cylinder.
[0012] Compared with the prior art, the present invention has the following beneficial effects: The depth limiting plate can be easily moved up and down around the outer circumference of the quantitative fertilizer cylinder. The depth adjustment rod is mounted on the depth limiting plate via bearings to adjust and stop the depth limiting plate. This solves the problem that the position of the baffle for the insertion depth is fixed, making it impossible to adjust the fertilization depth according to the condition of the fertilized seedlings, and that it is inconvenient to add an adjustable depth baffle to the fertilizer metering device to adjust the insertion depth.
[0013] The anti-blocking rod is easily inserted into the metering fertilizer cylinder, and the lower outlet of the metering fertilizer cylinder is kept closed by a cylindrical spring. The anti-blocking rod is easily pushed down by pushing the force rod to open the lower outlet of the metering fertilizer cylinder. This solves the problem that the lower outlet is easily blocked by soil, which prevents the fertilizer inside from being discharged for normal fertilization. It is also not convenient to install push-out anti-blocking measures on the fertilizer metering device to seal and protect the lower outlet. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model.
[0015] Figure 2This is a cross-sectional structural diagram of the present invention.
[0016] Figure 3 This is a disassembled structural diagram of the present invention.
[0017] Figure 4 This is an assembly diagram of the quantitative fertilizer applicator and the anti-blocking rod of this utility model.
[0018] Figure 5 This is an assembly diagram of the push anti-blocking rod and the push force rod of this utility model.
[0019] Figure 6 This is an assembly diagram of the depth limiting plate and depth adjusting rod of this utility model.
[0020] In the diagram: 1. Meter body; 2. Metering fertilizer cylinder; 3. Depth limiting plate; 4. Depth adjustment rod; 5. Ground gripping rod; 6. Push anti-blocking rod; 7. Push force rod; 8. Cylindrical spring. Detailed Implementation
[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0022] Example 1: As shown in the attached document Figure 1 To be continued Figure 6 As shown: This utility model provides a multifunctional seedling fertilizer metering device, including a metering device body 1; the metering device body 1 is provided with a metering fertilizer cylinder 2 for easy support of various components; the upper left side of the metering fertilizer cylinder 2 is provided with a semi-circular head plate with upper and lower through threaded holes for easy installation of the depth adjustment rod 4 via threads; the top end face of the metering fertilizer cylinder 2 is provided with a closed plate with upper and lower through holes for easy insertion of the anti-blocking rod 6 into the interior; a depth limiting plate 3 is fitted around the lower outer circumference of the metering fertilizer cylinder 2 for easy vertical movement of the depth limiting plate 3; a vertical sleeve is provided on the left side of the depth limiting plate 3 for easy insertion of the metering fertilizer cylinder 2 into the interior; a semi-circular head with upper and lower through holes is provided in the middle of the left side of the sleeve of the depth limiting plate 3. The depth limiting plate 3 has a foot pedal with a semi-circular head at the bottom right side of its sleeve, which facilitates the insertion of the quantitative fertilizer cylinder 2 into the ground by stepping on it. A triangular block is provided on the top left side of the foot pedal of the depth limiting plate 3 to enhance the force-bearing capacity. A conical surface is provided on the outer circumference of the lower end of the quantitative fertilizer cylinder 2 to facilitate the engagement with the conical head of the push anti-blocking rod 6. A feed screw hole is provided on the upper right side wall of the quantitative fertilizer cylinder 2 to facilitate the installation of the external quantitative pipeline by thread. Assembly screw holes are provided on both the front and rear walls of the upper end of the quantitative fertilizer cylinder 2 to facilitate the installation of the ground gripping rod 5 by thread. A force-bearing rod is provided on the upper right side of the quantitative fertilizer cylinder 2 to facilitate the force-bearing cooperation with the push force-bearing rod 7.
[0023] The quantitative fertilizer applicator 2 has a depth adjustment rod 4 threadedly installed on its semi-circular head plate. This allows the rod to be raised and lowered via threaded engagement. The outer circumference of the depth adjustment rod 4 is threaded for easy installation. A handle is located at the upper end of the rod for rotation. A fixing post is located at the lower end of the rod for mounting the depth limiting plate 3 via bearings. The fixing post of the depth adjustment rod 4 is mounted on the semi-circular head plate of the depth limiting plate 3 via bearings, facilitating the adjustment of the depth rod. 4. The depth limiting plate 3 is raised and lowered by the bearing. A ground-inserting gripping rod 5 is installed inside the assembly screw hole of the quantitative fertilizer applicator 2, facilitating gripping the applicator 2 and applying force. A threaded post is provided on the inner end face of the ground-inserting gripping rod 5 for easy assembly and disassembly via threads. A regular hexagonal groove is provided on the outer end face of the ground-inserting gripping rod 5 for easy rotation using tools. A push-anti-blocking rod 6 is inserted into the closed plate of the quantitative fertilizer applicator 2, facilitating the up-and-down movement of the push-anti-blocking rod 6. A sealing post is provided at the lower end of the push-anti-blocking rod 6. The lower outlet of the quantitative fertilizer cylinder 2 is then sealed. The bottom of the sealing column of the anti-blocking rod 6 is equipped with a conical head to facilitate mating with the conical surface of the quantitative fertilizer cylinder 2. The top of the sealing column of the anti-blocking rod 6 is equipped with a frustum to facilitate the rapid retraction of the anti-blocking rod 6 into the quantitative fertilizer cylinder 2. A limiting ring plate is provided on the outer circumference of the upper end of the anti-blocking rod 6 to limit the reset position of the anti-blocking rod 6. A threaded post is provided on the top end face of the anti-blocking rod 6 to facilitate the threaded installation of the force-bearing rod 7. A push rod 7 is threadedly installed on the upper part, which facilitates pushing the anti-blocking rod 6 downward. A semi-cylinder in the vertical direction is provided on the left end face of the push rod 7, which facilitates the anti-rotation of the push rod 7 by the depth adjustment rod 4. A threaded blind hole is opened at the bottom left end of the push rod 7, which facilitates the threaded installation of the anti-blocking rod 6. A cylindrical spring 8 is sleeved on the outer circumference of the upper end of the anti-blocking rod 6, which facilitates the upward reset of the anti-blocking rod 6. The surface of the cylindrical spring 8 is provided with a corrosion-resistant layer to increase the service life of the cylindrical spring 8.
[0024] The specific usage and function of this embodiment are as follows: In this utility model, when... Figure 1 As shown, when the depth limiting plate 3 is adjusted in height, the depth adjusting rod 4 is rotated to engage with the quantitative fertilizer cylinder 2 via a threaded connection. This causes the depth adjusting rod 4 to move upward or downward through the threaded engagement, which in turn drives the depth limiting plate 3 to move upward or downward synchronously along the quantitative fertilizer cylinder 2 via a bearing. This changes the length of the quantitative fertilizer cylinder 2 below the depth limiting plate 3, thereby adjusting the insertion length of the quantitative fertilizer cylinder 2. This method solves the problem of the fixed position of the insertion depth baffle, which prevents adjustment of the fertilization depth according to the condition of the fertilized seedlings. Simultaneously, as... Figure 2As shown, the lower outlet of the quantitative fertilizer applicator 2 is kept closed by pushing the anti-blocking rod 6, and the anti-blocking rod 6 will not rise due to force when it contacts the ground. This allows the lower opening of the quantitative fertilizer applicator 2 to remain closed when inserted into the ground by pushing the anti-blocking rod 6. This method solves the problem that the lower outlet is easily blocked by soil, preventing the fertilizer from being discharged and used for normal fertilization. Figure 1 As shown, when using the metering device body 1, hold the ground-insertion gripping lever 5 so that the lower end of the push anti-blocking lever 6 is aligned with the ground. Apply downward force to the metering fertilizer cylinder 2 using the ground-insertion gripping lever 5, causing the metering fertilizer cylinder 2 and the lower end of the push anti-blocking lever 6 to insert into the ground. Simultaneously, step on the depth limiting plate 3 to apply pressure to the metering fertilizer cylinder 2, reducing the difficulty of inserting it into the ground. Stop applying force when the bottom end of the depth limiting plate 3 contacts the ground. Then, hook four fingers around the force-bearing rod of the metering fertilizer cylinder 2, and press the top of the push force-bearing rod 7 with your thumb and forefinger, causing the push force-bearing rod 7 to descend under the gripping force. This descent compresses the cylindrical spring 8, causing the push force-bearing rod 7 to descend synchronously, thus lowering the push anti-blocking lever 6. The blocking rod 6 is pushed down and disengaged from the inside of the quantitative fertilizer cylinder 2, thereby releasing the sealing of the lower opening of the quantitative fertilizer cylinder 2. This allows the fertilizer inside the quantitative fertilizer cylinder 2 to flow from the lower opening into the ground insertion hole. Simultaneously, the metering device body 1 is slowly moved upward. Before the quantitative fertilizer cylinder 2 is removed from the ground insertion hole, the pressure on the push rod 7 is released, allowing the push rod 7 to rise and reset under the force of the cylindrical spring 8. The push rod 7 drives the push anti-blocking rod 6 to rise and reset simultaneously, causing the blocking rod 6 to rise to the lower opening of the quantitative fertilizer cylinder 2 and seal it, thus preventing the fertilizer inside the quantitative fertilizer cylinder 2 from continuing to flow out, thereby completing the seedling fertilization.
[0025] Example 2: The difference from Example 1 is that the outer circumferential surface of the ground grip bar 5 can also be set as a frosted surface, thereby increasing the friction between the outer circumferential surface of the ground grip bar 5 and the hand, and preventing the outer circumferential surface of the ground grip bar 5 from slipping when gripping the hand.
[0026] Example 3: The difference from Example 1 is that the regular hexagonal groove of the ground gripping rod 5 can also be set as a regular heptagonal groove, so that the ground gripping rod 5 can only be rotated by a special tool that cooperates with the regular heptagonal groove, thus preventing non-workers from rotating and disassembling the ground gripping rod 5.
Claims
1. A multifunctional seedling fertilizing doser, characterized in that: The device includes a metering device body (1); the metering device body (1) is provided with a metering fertilizer cylinder (2), the upper left side of the metering fertilizer cylinder (2) is provided with a semi-circular head plate with a through-hole, the top end face of the metering fertilizer cylinder (2) is provided with a closed plate with a through-hole, the lower outer circumference of the metering fertilizer cylinder (2) is fitted with a depth limiting plate (3), the left side of the depth limiting plate (3) is provided with a sleeve in the vertical direction, the middle left side of the sleeve of the depth limiting plate (3) is provided with a semi-circular head plate with a through-hole, the bottom right side of the sleeve of the depth limiting plate (3) is provided with a foot pedal with a semi-circular head, and the top left side of the foot pedal of the depth limiting plate (3) is provided with a triangular block.
2. The multifunctional seedling fertilizer quantifier according to claim 1, characterized in that: The lower end of the quantitative fertilizer cylinder (2) is provided with a conical surface on the outer circumference. The upper end of the quantitative fertilizer cylinder (2) is provided with a feed screw hole on the right side wall. The upper end of the quantitative fertilizer cylinder (2) is provided with assembly screw holes on both the front and rear walls. The upper end of the quantitative fertilizer cylinder (2) is provided with a force-bearing rod on the right side.
3. The multi-functional seedling fertilizer quantifier according to claim 2, characterized in that: The depth adjustment rod (4) is installed on the semi-circular head plate of the quantitative fertilizer cylinder (2) by thread. The outer circumference of the depth adjustment rod (4) is threaded. The upper end of the depth adjustment rod (4) is provided with a handle rod, and the lower end face of the depth adjustment rod (4) is provided with a fixing column. The fixing column of the depth adjustment rod (4) is installed on the semi-circular head plate of the depth limiting plate (3) by bearing.
4. The multi-functional seedling fertilizer quantifier according to claim 3, characterized in that: The assembly screw hole of the quantitative fertilizer cylinder (2) is equipped with a ground-inserting gripping rod (5). The inner end face of the ground-inserting gripping rod (5) is provided with a threaded post, and the outer end face of the ground-inserting gripping rod (5) is provided with a regular hexagonal groove.
5. The multi-functional seedling fertilizer quantifier according to claim 4, characterized in that: A push anti-blocking rod (6) is inserted into the closed plate of the quantitative fertilizer cylinder (2). A sealing column is provided at the lower end of the push anti-blocking rod (6). A conical head is provided at the bottom of the sealing column of the push anti-blocking rod (6). A frustum is provided at the top of the sealing column of the push anti-blocking rod (6). A limiting ring plate is provided on the outer circumference of the upper end of the push anti-blocking rod (6). A threaded column is provided on the top end face of the push anti-blocking rod (6).
6. The multi-functional seedling fertilizer quantifier according to claim 5, characterized in that: The push anti-blocking rod (6) has a push force rod (7) installed on its threaded post. The push force rod (7) has a semi-cylinder in the vertical direction on its left end face and a threaded blind hole at the bottom of its left end.
7. The multi-functional seedling fertilizer quantifier according to claim 6, characterized in that: The upper outer circumference of the push anti-blocking rod (6) is fitted with a cylindrical spring (8), and the surface of the cylindrical spring (8) is provided with a corrosion-resistant layer.