A fertilizer application device for tomato cultivation
By using a blocking column and a high-mesh filter in the fertilizer applicator for tomato cultivation, the problem of easy clogging at the fertilizer injection gun outlet was solved, ensuring normal operation of the device and preventing soil clogging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOTOU CITY INST OF AGRI SCI
- Filing Date
- 2025-09-09
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional fertilizer injection guns are prone to clogging at the liquid outlet with soil, affecting subsequent use.
A fertilization device for tomato cultivation was designed, which uses a movable blocking column to seal the liquid outlet and a high-mesh filter to reduce soil entry and prevent clogging.
It effectively prevents soil from entering the device, prevents blockage, ensures the normal operation of the fertilization device, and reduces soil splashing.
Smart Images

Figure CN224439685U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fertilization device technology, specifically a fertilization device for tomato cultivation. Background Technology
[0002] In the cultivation of tomatoes, fertilization is necessary. In addition to applying base fertilizer, water-soluble fertilizer is needed to promote root growth and seedling development during the seedling establishment and flowering period. During the peak of fruit expansion, fertilizer is needed to supplement calcium and magnesium. In the later stage, fertilizer is needed to supplement potassium to protect the leaves. It can be said that fertilization is indispensable in the process of tomato cultivation.
[0003] When fertilizing tomatoes during the fruiting period, it is important to ensure that the leaves do not get wet, otherwise diseases may easily occur. Therefore, fertilization during this process requires underground application, which is usually done using a fertilizer injection gun. The fertilizer injection gun in the current technology is generally a thin tube with holes on its outer wall. When the tube is inserted into the ground, liquid fertilizer is injected into it, and the fertilizer is sprayed out from the holes and combines with the soil.
[0004] If the soil in the area where liquid fertilizer is absorbed becomes too wet, it is very easy for the fertilizer to stick to the holes of the fertilizer injection gun, causing blockage and affecting subsequent use. In view of this, in-depth research was conducted to address the above problems, which led to this case. Utility Model Content
[0005] The purpose of this invention is to provide a fertilization device for tomato cultivation, in order to solve the problem mentioned in the background art that the liquid outlet of traditional fertilizer injection guns is easily blocked by soil.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a fertilization device for tomato cultivation, comprising a base rod, a connecting cylinder fixed to the bottom end of the base rod, and a fixing cap fixed to the bottom end of the connecting cylinder. A ground-inserting cylinder is installed below the fixing cap, and the outer wall of the ground-inserting cylinder has multiple liquid outlet holes. A high-mesh filter screen is embedded in the inner wall of each liquid outlet hole. A blocking column is installed on the inner wall of the ground-inserting cylinder, and the diameter of the blocking column is equal to the inner diameter of the ground-inserting cylinder. The height of the blocking column is greater than the diameter of the liquid outlet holes. A connecting pipe is fixed above the blocking column, and the top end of the connecting pipe extends into the interior of the connecting cylinder. An inlet pipe is embedded inside the base rod, and the top end of the inlet pipe extends above the base rod. The bottom end of the inlet pipe extends into the interior of the connecting cylinder. A telescopic pipe is installed between one end of the inlet pipe and the connecting pipe. An adjustment component for adjusting the vertical position of the connecting pipe is provided on one side of the connecting cylinder. Multiple spray holes are opened at the bottom of the outer wall of the connecting pipe.
[0007] Preferably, the adjusting assembly includes a connecting rod, which is fixed to one side of the through pipe, and one end of the connecting rod extends to one side of the connecting cylinder. Two fixing plates are fixed to the outer wall of the connecting cylinder, and a sliding block is provided between one side of the two fixing plates. The upper and lower ends of the fixing plates near the sliding block are provided with slots. Two movable blocks are slidably installed inside the sliding block, and a spring telescopic rod is fixed between one side of the two movable blocks. A locking block is fixed to the other end of each movable block, and one end of each locking block extends into the corresponding slot. One side of the sliding block is fixed to one end of the connecting rod.
[0008] Preferably, the length of the sliding block is approximately equal to the distance between one side of the two fixed plates, and the upper and lower ends of the fixed plates near the sliding block are both fixed with baffles.
[0009] Preferably, the top end of the inner wall of the insertion tube is provided with an internal thread, and the bottom end of the outer wall of the fixing cover is provided with a matching external thread.
[0010] Preferably, two grips are fixed to the top of the outer wall of the base rod, and the outer wall of the grips is provided with rubber anti-slip strips.
[0011] Preferably, the bottom end of the grounding tube is fixed with a grounding tip, and the outer wall of the grounding tube is fitted with a movable ring, the bottom end of the outer wall of the movable ring being fixed with two pedals.
[0012] Preferably, the outer wall of the grounding cylinder is provided with multiple vertically arranged guide grooves, and the inner wall of the movable ring is fixed with a corresponding number of matching guide blocks.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] By using a movable blocking column to block the liquid outlet, the liquid outlet can be sealed even when the device is not dispensing water, preventing soil from entering the device. At the same time, a high-mesh filter is used to reduce the impact force of the liquid fertilizer spray, preventing soil from splashing. The high-mesh filter also blocks soil, preventing soil from clogging the liquid outlet, thus allowing the device to work better. Attached Figure Description
[0015] Figure 1 This is a frontal cross-sectional view of the present invention.
[0016] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0017] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point B;
[0018] Figure 4 This is a top view cross-sectional structural diagram of the movable ring of this utility model;
[0019] Figure 5 This is a side cross-sectional view of the combination of the fixing plate and the sliding block of this utility model.
[0020] In the diagram: 1. Inlet pipe; 2. Base rod; 3. Handle; 4. Connecting cylinder; 5. Telescopic pipe; 6. Through pipe; 7. Fixing plate; 8. Ground insertion cylinder; 9. Blocking column; 10. Fixing cap; 11. Spray hole; 12. Ground tip; 13. Sliding block; 14. Locking block; 15. Spring telescopic rod; 16. Connecting rod; 17. High-mesh filter; 18. Outlet hole; 19. Pedal; 20. Movable ring; 21. Slot; 22. Movable block Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example: Please refer to Figure 1-5 A fertilization device for tomato cultivation includes a base rod 2, a connecting cylinder 4 fixed to the bottom end of the base rod 2, and a fixing cover 10 fixed to the bottom end of the connecting cylinder 4. A ground-inserting cylinder 8 is installed below the fixing cover 10, and the outer wall of the ground-inserting cylinder 8 has multiple slurry outlet holes 18. A high-mesh filter screen 17 is embedded in the inner wall of each slurry outlet hole 18. A blocking column 9 is installed on the inner wall of the ground-inserting cylinder 8, and the diameter of the blocking column 9 is equal to the inner diameter of the ground-inserting cylinder 8, while the height of the blocking column 9 is greater than the slurry outlet holes 18. The diameter of the pipe is such that a pipe 6 is fixed above the blocking column 9, and the top end of the pipe 6 extends into the interior of the connecting cylinder 4. An inlet pipe 1 is embedded inside the base rod 2, and the top end of the inlet pipe 1 extends above the base rod 2. The bottom end of the inlet pipe 1 extends into the interior of the connecting cylinder 4. A telescopic pipe 5 is installed between one end of the inlet pipe 1 and the pipe 6. An adjustment component for adjusting the vertical position of the pipe 6 is provided on one side of the connecting cylinder 4. Multiple spray holes 11 are opened at the bottom of the outer wall of the pipe 6.
[0023] Specifically, such as Figure 1 and Figure 3As shown, when using this device, connect one end of the inlet pipe 1 to the outlet end of the fertilizer tank, insert the entire device vertically into the soil, and partially bury the insertion cylinder 8 underground. Then, move the blocking column 9 down so that it no longer blocks the outlet hole 18. At this time, inject water and fertilizer from the inlet pipe 1, so that the water and fertilizer leave the through pipe 6 from the spray hole 11 and are buffered and sprayed out from the high-mesh filter 17 to complete the underground fertilization operation. The presence of the high-mesh filter 17 can prevent the soil on the outer wall from entering the device. After the fertilization work is completed, clean water can also be introduced from the inlet pipe 1 to complete the rinsing of the high-mesh filter 17.
[0024] The adjustment assembly includes a connecting rod 16, which is fixed to one side of the through pipe 6, and one end of the connecting rod 16 extends to one side of the connecting cylinder 4. Two fixing plates 7 are fixed to the outer wall of the connecting cylinder 4, and a sliding block 13 is provided between one side of the two fixing plates 7. The upper and lower ends of the fixing plates 7 near the sliding block 13 are provided with slots 21. Two movable blocks 22 are slidably installed inside the sliding block 13, and a spring telescopic rod 15 is fixed between one side of the two movable blocks 22. A locking block 14 is fixed to the other end of each movable block 22, and one end of each locking block 14 extends into the corresponding slot 21. One side of the sliding block 13 is fixed to one end of the connecting rod 16.
[0025] Specifically, such as Figure 1 , Figure 2 and Figure 5 As shown, the movable sliding block 13 can drive the through pipe 6 to move vertically through the connecting rod 16. When the sliding block 13 moves to the designated position, due to the push of the spring telescopic rod 15, the locking block 14 will be locked into the inside of the slot 21, thereby completing the positioning of the through pipe 6. When it is necessary to move the sliding block 13, the sliding block 13 can be vigorously pushed. The end of the locking block 14 is hemispherical and can be squeezed against the inner wall of the slot 21, thereby causing the movable block 22 to move against the spring telescopic rod 15. The locking block 14 can also be pushed from one end of the slot 21.
[0026] The length of the sliding block 13 is approximately equal to the distance between one side of the two fixed plates 7. Both the upper and lower ends of the fixed plate 7 near the sliding block 13 are fixed with baffles.
[0027] Specifically, such as Figure 1 , Figure 2 and Figure 5 As shown, the design of the baffle bar can prevent the sliding block 13 from coming off between the two fixed plates 7 on one side.
[0028] The top of the inner wall of the grounding cylinder 8 is provided with an internal thread, and the bottom of the outer wall of the fixing cover 10 is provided with a matching external thread.
[0029] Specifically, such as Figure 1As shown, the grounding cylinder 8 and the fixing cover 10 are connected by a threaded connection. During maintenance, the grounding cylinder 8 can be removed from the fixing cover 10 to maintain the inside of the grounding cylinder 8.
[0030] Two grips 3 are fixed to the top of the outer wall of the base rod 2, and the outer wall of the grips 3 is provided with rubber anti-slip strips;
[0031] The bottom end of the ground-inserting cylinder 8 is fixed with a ground-piercing tip 12, and the outer wall of the ground-inserting cylinder 8 is fitted with a movable ring 20, and the bottom end of the outer wall of the movable ring 20 is fixed with two pedals 19.
[0032] The outer wall of the ground insertion cylinder 8 is provided with multiple vertically arranged guide grooves, and the inner wall of the movable ring 20 is fixed with a corresponding number of matching guide blocks.
[0033] Specifically, such as Figure 1 and Figure 4 As shown, when using this device, the pedal 19 can be brought into contact with the ground, and then the foot can be placed on the pedal 19, while both hands hold the handle 3 to press the entire device down. This can help the device to be inserted vertically into the soil.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A fertilizing device for tomato cultivation comprising a base bar (2), characterized in that: The bottom end of the base rod (2) is fixed with a connecting cylinder (4), and the bottom end of the connecting cylinder (4) is fixed with a fixing cap (10). A grounding cylinder (8) is installed below the fixing cap (10), and the outer wall of the grounding cylinder (8) is provided with multiple liquid outlet holes (18). A high-mesh filter screen (17) is embedded in the inner wall of each liquid outlet hole (18). A blocking column (9) is installed on the inner wall of the grounding cylinder (8), and the diameter of the blocking column (9) is equal to the inner diameter of the grounding cylinder (8). The height of the blocking column (9) is greater than the diameter of the liquid outlet hole (18). A through pipe (6) is fixed above the base rod (2), and the top end of the through pipe (6) extends into the interior of the connecting cylinder (4). An inlet pipe (1) is embedded inside the base rod (2), and the top end of the inlet pipe (1) extends above the base rod (2). The bottom end of the inlet pipe (1) extends into the interior of the connecting cylinder (4). A telescopic pipe (5) is installed between one end of the inlet pipe (1) and the through pipe (6). An adjustment component for adjusting the vertical position of the through pipe (6) is provided on one side of the connecting cylinder (4). Multiple spray holes (11) are opened at the bottom of the outer wall of the through pipe (6).
2. The fertilizer device for tomato cultivation according to claim 1, characterized in that: The adjustment assembly includes a connecting rod (16), which is fixed to one side of the through pipe (6) and one end of the connecting rod (16) extends to one side of the connecting cylinder (4). Two fixing plates (7) are fixed to the outer wall of the connecting cylinder (4), and a sliding block (13) is provided between one side of the two fixing plates (7). The upper and lower ends of the fixing plate (7) near the sliding block (13) are provided with slots (21). Two movable blocks (22) are slidably installed inside the sliding block (13), and a spring telescopic rod (15) is fixed between one side of the two movable blocks (22). The other end of the movable block (22) is fixed with a locking block (14), and one end of the locking block (14) extends into the interior of the corresponding slot (21). One side of the sliding block (13) is fixed to one end of the connecting rod (16).
3. The fertilizer device for tomato cultivation according to claim 2, characterized in that: The length of the sliding block (13) is approximately equal to the distance between one side of the two fixed plates (7). Both the upper and lower ends of the fixed plate (7) near the sliding block (13) are fixed with baffles.
4. The fertilizer device for tomato cultivation according to claim 1, characterized in that: The top of the inner wall of the grounding tube (8) is provided with an internal thread, and the bottom of the outer wall of the fixing cover (10) is provided with a matching external thread.
5. The fertilizer device for tomato cultivation according to claim 1, characterized in that: Two grips (3) are fixed to the top of the outer wall of the base rod (2), and the outer wall of the grips (3) is provided with rubber anti-slip strips.
6. The fertilizer device for tomato cultivation according to claim 1, characterized in that: The bottom end of the grounding cylinder (8) is fixed with a grounding tip (12), and the outer wall of the grounding cylinder (8) is fitted with a movable ring (20), and the bottom end of the outer wall of the movable ring (20) is fixed with two pedals (19).
7. A fertilizing device for tomato cultivation according to claim 6, characterized in that: The outer wall of the grounding cylinder (8) is provided with multiple vertically arranged guide grooves, and the inner wall of the movable ring (20) is fixed with a corresponding number of matching guide blocks.